Subtree merge in gwtexpui as gerrit-gwtexpui

Nobody uses the standalone gwtexpui project that we know of. Its
release process is frustrating, as even getting a simple bugfix into
Gerrit requires releasing gwtexpui (incrementing the version, tagging,
deploying, setting the next snapshot version).

Change-Id: I958ed659b8de8d855f7f9a7f4df66f6b4aad882f

79 files changed, 6584 insertions, 0 deletions

diff --git a/gerrit-gwtexpui/.gitignore b/gerrit-gwtexpui/.gitignore
new file mode 100644
index 0000000000..406c4d5907
--- /dev/null
+++ b/gerrit-gwtexpui/.gitignore
@@ -0,0 +1,6 @@
+/target
+/generated_classes
+/.classpath
+/.project
+/.settings/org.maven.ide.eclipse.prefs
+.settings/org.eclipse.m2e.core.prefs
diff --git a/gerrit-gwtexpui/.settings/org.eclipse.core.resources.prefs b/gerrit-gwtexpui/.settings/org.eclipse.core.resources.prefs
new file mode 100644
index 0000000000..f9fe34593f
--- /dev/null
+++ b/gerrit-gwtexpui/.settings/org.eclipse.core.resources.prefs
@@ -0,0 +1,4 @@
+eclipse.preferences.version=1
+encoding//src/main/java=UTF-8
+encoding//src/test/java=UTF-8
+encoding/<project>=UTF-8
diff --git a/gerrit-gwtexpui/.settings/org.eclipse.core.runtime.prefs b/gerrit-gwtexpui/.settings/org.eclipse.core.runtime.prefs
new file mode 100644
index 0000000000..8667cfd4a3
--- /dev/null
+++ b/gerrit-gwtexpui/.settings/org.eclipse.core.runtime.prefs
@@ -0,0 +1,3 @@
+#Tue Sep 02 16:59:24 PDT 2008
+eclipse.preferences.version=1
+line.separator=\n
diff --git a/gerrit-gwtexpui/.settings/org.eclipse.jdt.core.prefs b/gerrit-gwtexpui/.settings/org.eclipse.jdt.core.prefs
new file mode 100644
index 0000000000..3473ea81de
--- /dev/null
+++ b/gerrit-gwtexpui/.settings/org.eclipse.jdt.core.prefs
@@ -0,0 +1,269 @@
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+org.eclipse.jdt.core.formatter.insert_space_between_empty_braces_in_array_initializer=do not insert
+org.eclipse.jdt.core.formatter.insert_space_between_empty_brackets_in_array_allocation_expression=do not insert
+org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_annotation_type_member_declaration=do not insert
+org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_constructor_declaration=do not insert
+org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_enum_constant=do not insert
+org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_method_declaration=do not insert
+org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_method_invocation=do not insert
+org.eclipse.jdt.core.formatter.keep_else_statement_on_same_line=false
+org.eclipse.jdt.core.formatter.keep_empty_array_initializer_on_one_line=false
+org.eclipse.jdt.core.formatter.keep_imple_if_on_one_line=true
+org.eclipse.jdt.core.formatter.keep_then_statement_on_same_line=false
+org.eclipse.jdt.core.formatter.lineSplit=80
+org.eclipse.jdt.core.formatter.never_indent_block_comments_on_first_column=false
+org.eclipse.jdt.core.formatter.never_indent_line_comments_on_first_column=false
+org.eclipse.jdt.core.formatter.number_of_blank_lines_at_beginning_of_method_body=0
+org.eclipse.jdt.core.formatter.number_of_empty_lines_to_preserve=3
+org.eclipse.jdt.core.formatter.put_empty_statement_on_new_line=false
+org.eclipse.jdt.core.formatter.tabulation.char=space
+org.eclipse.jdt.core.formatter.tabulation.size=2
+org.eclipse.jdt.core.formatter.use_tabs_only_for_leading_indentations=false
+org.eclipse.jdt.core.formatter.wrap_before_binary_operator=true
diff --git a/gerrit-gwtexpui/.settings/org.eclipse.jdt.ui.prefs b/gerrit-gwtexpui/.settings/org.eclipse.jdt.ui.prefs
new file mode 100644
index 0000000000..6263c744e3
--- /dev/null
+++ b/gerrit-gwtexpui/.settings/org.eclipse.jdt.ui.prefs
@@ -0,0 +1,61 @@
+#Thu Nov 05 16:18:16 PST 2009
+eclipse.preferences.version=1
+editor_save_participant_org.eclipse.jdt.ui.postsavelistener.cleanup=true
+formatter_profile=_Google Format
+formatter_settings_version=11
+org.eclipse.jdt.ui.ignorelowercasenames=true
+org.eclipse.jdt.ui.importorder=com.google;com;junit;net;org;java;javax;
+org.eclipse.jdt.ui.ondemandthreshold=99
+org.eclipse.jdt.ui.staticondemandthreshold=99
+org.eclipse.jdt.ui.text.custom_code_templates=<?xml version\="1.0" encoding\="UTF-8" standalone\="no"?><templates/>
+sp_cleanup.add_default_serial_version_id=true
+sp_cleanup.add_generated_serial_version_id=false
+sp_cleanup.add_missing_annotations=false
+sp_cleanup.add_missing_deprecated_annotations=true
+sp_cleanup.add_missing_methods=false
+sp_cleanup.add_missing_nls_tags=false
+sp_cleanup.add_missing_override_annotations=true
+sp_cleanup.add_serial_version_id=false
+sp_cleanup.always_use_blocks=true
+sp_cleanup.always_use_parentheses_in_expressions=false
+sp_cleanup.always_use_this_for_non_static_field_access=false
+sp_cleanup.always_use_this_for_non_static_method_access=false
+sp_cleanup.convert_to_enhanced_for_loop=false
+sp_cleanup.correct_indentation=false
+sp_cleanup.format_source_code=false
+sp_cleanup.format_source_code_changes_only=false
+sp_cleanup.make_local_variable_final=true
+sp_cleanup.make_parameters_final=true
+sp_cleanup.make_private_fields_final=true
+sp_cleanup.make_type_abstract_if_missing_method=false
+sp_cleanup.make_variable_declarations_final=false
+sp_cleanup.never_use_blocks=false
+sp_cleanup.never_use_parentheses_in_expressions=true
+sp_cleanup.on_save_use_additional_actions=true
+sp_cleanup.organize_imports=false
+sp_cleanup.qualify_static_field_accesses_with_declaring_class=false
+sp_cleanup.qualify_static_member_accesses_through_instances_with_declaring_class=true
+sp_cleanup.qualify_static_member_accesses_through_subtypes_with_declaring_class=true
+sp_cleanup.qualify_static_member_accesses_with_declaring_class=false
+sp_cleanup.qualify_static_method_accesses_with_declaring_class=false
+sp_cleanup.remove_private_constructors=true
+sp_cleanup.remove_trailing_whitespaces=true
+sp_cleanup.remove_trailing_whitespaces_all=true
+sp_cleanup.remove_trailing_whitespaces_ignore_empty=false
+sp_cleanup.remove_unnecessary_casts=false
+sp_cleanup.remove_unnecessary_nls_tags=false
+sp_cleanup.remove_unused_imports=false
+sp_cleanup.remove_unused_local_variables=false
+sp_cleanup.remove_unused_private_fields=true
+sp_cleanup.remove_unused_private_members=false
+sp_cleanup.remove_unused_private_methods=true
+sp_cleanup.remove_unused_private_types=true
+sp_cleanup.sort_members=false
+sp_cleanup.sort_members_all=false
+sp_cleanup.use_blocks=false
+sp_cleanup.use_blocks_only_for_return_and_throw=false
+sp_cleanup.use_parentheses_in_expressions=false
+sp_cleanup.use_this_for_non_static_field_access=false
+sp_cleanup.use_this_for_non_static_field_access_only_if_necessary=true
+sp_cleanup.use_this_for_non_static_method_access=false
+sp_cleanup.use_this_for_non_static_method_access_only_if_necessary=true
diff --git a/gerrit-gwtexpui/COPYING b/gerrit-gwtexpui/COPYING
new file mode 100644
index 0000000000..d645695673
--- /dev/null
+++ b/gerrit-gwtexpui/COPYING
@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
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+      "License" shall mean the terms and conditions for use, reproduction,
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diff --git a/gerrit-gwtexpui/GoogleFormat.xml b/gerrit-gwtexpui/GoogleFormat.xml
new file mode 100644
index 0000000000..c0a008a964
--- /dev/null
+++ b/gerrit-gwtexpui/GoogleFormat.xml
@@ -0,0 +1,267 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<profiles version="11">
+<profile kind="CodeFormatterProfile" name="Google Format" version="11">
+<setting id="org.eclipse.jdt.core.formatter.comment.insert_new_line_before_root_tags" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_annotation" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_type_parameters" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_type_declaration" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_type_arguments" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.brace_position_for_anonymous_type_declaration" value="end_of_line"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_case" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_brace_in_array_initializer" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_annotation_declaration" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_new_line_before_closing_brace_in_array_initializer" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_annotation" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.blank_lines_before_field" value="0"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_while" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_annotation_type_member_declaration" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_new_line_before_else_in_if_statement" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_prefix_operator" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.keep_else_statement_on_same_line" value="false"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_ellipsis" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.comment.insert_new_line_for_parameter" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_annotation_type_declaration" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.indent_breaks_compare_to_cases" value="true"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_at_in_annotation" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.alignment_for_multiple_fields" value="16"/>
+<setting id="org.eclipse.jdt.core.formatter.alignment_for_expressions_in_array_initializer" value="16"/>
+<setting id="org.eclipse.jdt.core.formatter.alignment_for_conditional_expression" value="16"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_for" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_binary_operator" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_question_in_wildcard" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.brace_position_for_array_initializer" value="end_of_line"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_enum_constant" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_new_line_before_finally_in_try_statement" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_local_variable" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_new_line_before_catch_in_try_statement" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_while" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.blank_lines_after_package" value="1"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_type_parameters" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.continuation_indentation" value="2"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_postfix_operator" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.alignment_for_arguments_in_method_invocation" value="16"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_angle_bracket_in_type_arguments" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_superinterfaces" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.blank_lines_before_new_chunk" value="1"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_binary_operator" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.blank_lines_before_package" value="0"/>
+<setting id="org.eclipse.jdt.core.compiler.source" value="1.5"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_enum_constant_arguments" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_constructor_declaration" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_closing_angle_bracket_in_type_arguments" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.comment.format_line_comments" value="true"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_enum_declarations" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_block" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.alignment_for_arguments_in_explicit_constructor_call" value="16"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_method_invocation_arguments" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.blank_lines_before_member_type" value="0"/>
+<setting id="org.eclipse.jdt.core.formatter.align_type_members_on_columns" value="false"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_enum_constant" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_for" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_method_declaration" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.alignment_for_selector_in_method_invocation" value="16"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_switch" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_unary_operator" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_colon_in_case" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.comment.indent_parameter_description" value="false"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_method_declaration" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_switch" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_enum_declaration" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_angle_bracket_in_type_parameters" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_type_declaration" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.comment.clear_blank_lines_in_block_comment" value="false"/>
+<setting id="org.eclipse.jdt.core.formatter.lineSplit" value="80"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_if" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_between_brackets_in_array_type_reference" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_parenthesized_expression" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_explicitconstructorcall_arguments" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_constructor_declaration" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.blank_lines_before_first_class_body_declaration" value="0"/>
+<setting id="org.eclipse.jdt.core.formatter.indentation.size" value="4"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_method_declaration" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_enum_constant" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.alignment_for_superclass_in_type_declaration" value="16"/>
+<setting id="org.eclipse.jdt.core.formatter.alignment_for_assignment" value="16"/>
+<setting id="org.eclipse.jdt.core.compiler.problem.assertIdentifier" value="error"/>
+<setting id="org.eclipse.jdt.core.formatter.tabulation.char" value="space"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_constructor_declaration_parameters" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_prefix_operator" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.indent_statements_compare_to_body" value="true"/>
+<setting id="org.eclipse.jdt.core.formatter.blank_lines_before_method" value="1"/>
+<setting id="org.eclipse.jdt.core.formatter.format_guardian_clause_on_one_line" value="false"/>
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+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_method_declaration" value="do not insert"/>
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+<setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_member" value="insert"/>
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+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_assert" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.brace_position_for_type_declaration" value="end_of_line"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_array_initializer" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_braces_in_array_initializer" value="do not insert"/>
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+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_semicolon_in_for" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_catch" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_angle_bracket_in_parameterized_type_reference" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_multiple_field_declarations" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_annotation" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_parameterized_type_reference" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_method_invocation_arguments" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.blank_lines_after_imports" value="1"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_multiple_local_declarations" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_enum_constant_header" value="true"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_semicolon_in_for" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.never_indent_line_comments_on_first_column" value="false"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_angle_bracket_in_type_arguments" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.never_indent_block_comments_on_first_column" value="false"/>
+<setting id="org.eclipse.jdt.core.formatter.keep_then_statement_on_same_line" value="false"/>
+</profile>
+</profiles>
diff --git a/gerrit-gwtexpui/pom.xml b/gerrit-gwtexpui/pom.xml
new file mode 100644
index 0000000000..ca2081d738
--- /dev/null
+++ b/gerrit-gwtexpui/pom.xml
@@ -0,0 +1,334 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+Copyright (C) 2009 The Android Open Source Project
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>gwtexpui</groupId>
+  <artifactId>gwtexpui</artifactId>
+  <packaging>jar</packaging>
+  <version>1.3.4</version>
+  <name>gwtexpui</name>
+  <description>Extended UI tools for GWT</description>
+  <url>https://gerrit.googlesource.com/gwtexpui</url>
+
+  <mailingLists>
+    <mailingList>
+      <name>repo-discuss mailing list</name>
+      <post>repo-discuss@googlegroups.com</post>
+    </mailingList>
+  </mailingLists>
+
+  <developers>
+    <developer>
+      <name>Shawn O. Pearce</name>
+      <email>sop@google.com</email>
+      <roles>
+        <role>Maintainer</role>
+      </roles>
+    </developer>
+  </developers>
+
+  <licenses>
+    <license>
+      <name>Apache License, 2.0</name>
+      <comments>
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
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+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
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+      You may add Your own copyright statement to Your modifications and
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+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
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+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
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+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
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+      Work (including but not limited to damages for loss of goodwill,
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+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
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+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+      </comments>
+    </license>
+  </licenses>
+
+  <properties>
+    <gwtVersion>2.3.0</gwtVersion>
+    <project.build.sourceEncoding>
+      UTF-8
+    </project.build.sourceEncoding>
+    <project.reporting.outputEncoding>
+      UTF-8
+    </project.reporting.outputEncoding>
+  </properties>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <configuration>
+          <source>1.6</source>
+          <target>1.6</target>
+          <encoding>UTF-8</encoding>
+        </configuration>
+      </plugin>
+      <plugin>
+        <artifactId>maven-source-plugin</artifactId>
+        <executions>
+          <execution>
+            <goals>
+              <goal>jar</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+
+    <extensions>
+      <extension>
+        <groupId>com.googlesource.gerrit</groupId>
+        <artifactId>gs-maven-wagon</artifactId>
+        <version>3.3</version>
+      </extension>
+    </extensions>
+  </build>
+
+  <dependencies>
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>3.8.2</version>
+      <scope>test</scope>
+    </dependency>
+
+    <dependency>
+      <groupId>com.google.gwt</groupId>
+      <artifactId>gwt-user</artifactId>
+      <version>${gwtVersion}</version>
+      <scope>provided</scope>
+    </dependency>
+
+    <dependency>
+      <groupId>com.google.gwt</groupId>
+      <artifactId>gwt-dev</artifactId>
+      <version>${gwtVersion}</version>
+      <scope>provided</scope>
+    </dependency>
+  </dependencies>
+
+  <distributionManagement>
+    <repository>
+      <id>gerrit-maven-repository</id>
+      <url>gs://gerrit-maven</url>
+      <uniqueVersion>true</uniqueVersion>
+    </repository>
+  </distributionManagement>
+
+  <repositories>
+    <repository>
+      <id>gerrit-maven</id>
+      <url>https://gerrit-maven.commondatastorage.googleapis.com</url>
+    </repository>
+  </repositories>
+</project>
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/clippy/Clippy.gwt.xml b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/clippy/Clippy.gwt.xml
new file mode 100644
index 0000000000..0e9b0727f5
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/clippy/Clippy.gwt.xml
@@ -0,0 +1,20 @@
+<!--
+ Copyright (C) 2009 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<module>
+  <inherits name='com.google.gwt.resources.Resources'/>
+  <inherits name="com.google.gwtexpui.safehtml.SafeHtml"/>
+  <inherits name="com.google.gwtexpui.user.User"/>
+</module>
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/clippy/client/ClippyCss.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/clippy/client/ClippyCss.java
new file mode 100644
index 0000000000..68495e8e45
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/clippy/client/ClippyCss.java
@@ -0,0 +1,22 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.clippy.client;
+
+import com.google.gwt.resources.client.CssResource;
+
+public interface ClippyCss extends CssResource {
+  String label();
+  String control();
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/clippy/client/ClippyResources.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/clippy/client/ClippyResources.java
new file mode 100644
index 0000000000..4c2b8981d4
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/clippy/client/ClippyResources.java
@@ -0,0 +1,25 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.clippy.client;
+
+import com.google.gwt.core.client.GWT;
+import com.google.gwt.resources.client.ClientBundle;
+
+public interface ClippyResources extends ClientBundle {
+  public static final ClippyResources I = GWT.create(ClippyResources.class);
+
+  @Source("clippy.css")
+  ClippyCss css();
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/clippy/client/CopyableLabel.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/clippy/client/CopyableLabel.java
new file mode 100644
index 0000000000..273318be51
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/clippy/client/CopyableLabel.java
@@ -0,0 +1,230 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.clippy.client;
+
+import com.google.gwt.core.client.GWT;
+import com.google.gwt.core.client.Scheduler;
+import com.google.gwt.event.dom.client.BlurEvent;
+import com.google.gwt.event.dom.client.BlurHandler;
+import com.google.gwt.event.dom.client.ClickEvent;
+import com.google.gwt.event.dom.client.ClickHandler;
+import com.google.gwt.event.dom.client.KeyPressEvent;
+import com.google.gwt.event.dom.client.KeyPressHandler;
+import com.google.gwt.http.client.URL;
+import com.google.gwt.user.client.Command;
+import com.google.gwt.user.client.DOM;
+import com.google.gwt.user.client.Element;
+import com.google.gwt.user.client.ui.Composite;
+import com.google.gwt.user.client.ui.FlowPanel;
+import com.google.gwt.user.client.ui.HasText;
+import com.google.gwt.user.client.ui.InlineLabel;
+import com.google.gwt.user.client.ui.Label;
+import com.google.gwt.user.client.ui.TextBox;
+import com.google.gwtexpui.safehtml.client.SafeHtml;
+import com.google.gwtexpui.safehtml.client.SafeHtmlBuilder;
+import com.google.gwtexpui.user.client.UserAgent;
+
+/**
+ * Label which permits the user to easily copy the complete content.
+ * <p>
+ * If the Flash plugin is available a "movie" is embedded that provides
+ * one-click copying of the content onto the system clipboard. The label (if
+ * visible) can also be clicked, switching from a label to an input box,
+ * allowing the user to copy the text with a keyboard shortcut.
+ */
+public class CopyableLabel extends Composite implements HasText {
+  private static final int SWF_WIDTH = 110;
+  private static final int SWF_HEIGHT = 14;
+  private static String swfUrl;
+  private static boolean flashEnabled = true;
+
+  static {
+    ClippyResources.I.css().ensureInjected();
+  }
+
+  public static boolean isFlashEnabled() {
+    return flashEnabled;
+  }
+
+  public static void setFlashEnabled(final boolean on) {
+    flashEnabled = on;
+  }
+
+  private static String swfUrl() {
+    if (swfUrl == null) {
+      swfUrl = GWT.getModuleBaseURL() + "gwtexpui_clippy1.cache.swf";
+    }
+    return swfUrl;
+  }
+
+  private final FlowPanel content;
+  private String text;
+  private int visibleLen;
+  private Label textLabel;
+  private TextBox textBox;
+  private Element swf;
+
+  /**
+   * Create a new label
+   *
+   * @param str initial content
+   */
+  public CopyableLabel(final String str) {
+    this(str, true);
+  }
+
+  /**
+   * Create a new label
+   *
+   * @param str initial content
+   * @param showLabel if true, the content is shown, if false it is hidden from
+   *        view and only the copy icon is displayed.
+   */
+  public CopyableLabel(final String str, final boolean showLabel) {
+    content = new FlowPanel();
+    initWidget(content);
+
+    text = str;
+    visibleLen = text.length();
+
+    if (showLabel) {
+      textLabel = new InlineLabel(getText());
+      textLabel.setStyleName(ClippyResources.I.css().label());
+      textLabel.addClickHandler(new ClickHandler() {
+        @Override
+        public void onClick(final ClickEvent event) {
+          showTextBox();
+        }
+      });
+      content.add(textLabel);
+    }
+    embedMovie();
+  }
+
+  /**
+   * Change the text which is displayed in the clickable label.
+   *
+   * @param text the new preview text, should be shorter than the original text
+   *        which would be copied to the clipboard.
+   */
+  public void setPreviewText(final String text) {
+    if (textLabel != null) {
+      textLabel.setText(text);
+      visibleLen = text.length();
+    }
+  }
+
+  private void embedMovie() {
+    if (flashEnabled && UserAgent.hasFlash) {
+      final String flashVars = "text=" + URL.encodeQueryString(getText());
+      final SafeHtmlBuilder h = new SafeHtmlBuilder();
+
+      h.openElement("div");
+      h.setStyleName(ClippyResources.I.css().control());
+
+      h.openElement("object");
+      h.setWidth(SWF_WIDTH);
+      h.setHeight(SWF_HEIGHT);
+      h.setAttribute("classid", "clsid:d27cdb6e-ae6d-11cf-96b8-444553540000");
+      h.paramElement("movie", swfUrl());
+      h.paramElement("FlashVars", flashVars);
+
+      h.openElement("embed");
+      h.setWidth(SWF_WIDTH);
+      h.setHeight(SWF_HEIGHT);
+      h.setAttribute("wmode", "transparent");
+      h.setAttribute("type", "application/x-shockwave-flash");
+      h.setAttribute("src", swfUrl());
+      h.setAttribute("FlashVars", flashVars);
+      h.closeSelf();
+
+      h.closeElement("object");
+      h.closeElement("div");
+
+      if (swf != null) {
+        DOM.removeChild(getElement(), swf);
+      }
+      DOM.appendChild(getElement(), swf = SafeHtml.parse(h));
+    }
+  }
+
+  public String getText() {
+    return text;
+  }
+
+  public void setText(final String newText) {
+    text = newText;
+    visibleLen = newText.length();
+
+    if (textLabel != null) {
+      textLabel.setText(getText());
+    }
+    if (textBox != null) {
+      textBox.setText(getText());
+      textBox.selectAll();
+    }
+    embedMovie();
+  }
+
+  private void showTextBox() {
+    if (textBox == null) {
+      textBox = new TextBox();
+      textBox.setText(getText());
+      textBox.setVisibleLength(visibleLen);
+      textBox.addKeyPressHandler(new KeyPressHandler() {
+        @Override
+        public void onKeyPress(final KeyPressEvent event) {
+          if (event.isControlKeyDown() || event.isMetaKeyDown()) {
+            switch (event.getCharCode()) {
+              case 'c':
+              case 'x':
+                Scheduler.get().scheduleDeferred(new Command() {
+                  public void execute() {
+                    hideTextBox();
+                  }
+                });
+                break;
+            }
+          }
+        }
+      });
+      textBox.addBlurHandler(new BlurHandler() {
+        @Override
+        public void onBlur(final BlurEvent event) {
+          hideTextBox();
+        }
+      });
+      content.insert(textBox, 1);
+    }
+
+    textLabel.setVisible(false);
+    textBox.setVisible(true);
+    Scheduler.get().scheduleDeferred(new Command() {
+      @Override
+      public void execute() {
+        textBox.selectAll();
+        textBox.setFocus(true);
+      }
+    });
+  }
+
+  private void hideTextBox() {
+    if (textBox != null) {
+      textBox.removeFromParent();
+      textBox = null;
+    }
+    textLabel.setVisible(true);
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/clippy/client/clippy.css b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/clippy/client/clippy.css
new file mode 100644
index 0000000000..b962df304d
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/clippy/client/clippy.css
@@ -0,0 +1,25 @@
+/* Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+.label {
+  vertical-align: top;
+}
+.control {
+  margin-left: 5px;
+  display: inline-block !important;
+  height: 14px;
+  width: 14px;
+  overflow: hidden;
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/clippy/public/gwtexpui_clippy1.cache.swf b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/clippy/public/gwtexpui_clippy1.cache.swf
new file mode 100644
index 0000000000..e46886cd11
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/clippy/public/gwtexpui_clippy1.cache.swf
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/css/CSS.gwt.xml b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/css/CSS.gwt.xml
new file mode 100644
index 0000000000..b3859873a1
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/css/CSS.gwt.xml
@@ -0,0 +1,19 @@
+<!--
+ Copyright (C) 2009 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<module>
+  <define-linker name='cachecss' class='com.google.gwtexpui.css.rebind.CssLinker'/>
+  <add-linker name='cachecss'/>
+</module>
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/css/rebind/CssLinker.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/css/rebind/CssLinker.java
new file mode 100644
index 0000000000..a9a8a2422a
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/css/rebind/CssLinker.java
@@ -0,0 +1,130 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.css.rebind;
+
+import com.google.gwt.core.ext.LinkerContext;
+import com.google.gwt.core.ext.TreeLogger;
+import com.google.gwt.core.ext.UnableToCompleteException;
+import com.google.gwt.core.ext.linker.AbstractLinker;
+import com.google.gwt.core.ext.linker.Artifact;
+import com.google.gwt.core.ext.linker.ArtifactSet;
+import com.google.gwt.core.ext.linker.LinkerOrder;
+import com.google.gwt.core.ext.linker.PublicResource;
+import com.google.gwt.core.ext.linker.impl.StandardLinkerContext;
+import com.google.gwt.core.ext.linker.impl.StandardStylesheetReference;
+import com.google.gwt.dev.util.Util;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.HashMap;
+
+@LinkerOrder(LinkerOrder.Order.PRE)
+public class CssLinker extends AbstractLinker {
+  @Override
+  public String getDescription() {
+    return "CssLinker";
+  }
+
+  @SuppressWarnings("unchecked")
+  @Override
+  public ArtifactSet link(final TreeLogger logger, final LinkerContext context,
+      final ArtifactSet artifacts) throws UnableToCompleteException {
+    final ArtifactSet returnTo = new ArtifactSet();
+    int index = 0;
+
+    final HashMap<String, PublicResource> css =
+        new HashMap<String, PublicResource>();
+
+    for (final StandardStylesheetReference ssr : artifacts
+        .<StandardStylesheetReference> find(StandardStylesheetReference.class)) {
+      css.put(ssr.getSrc(), null);
+    }
+    for (final PublicResource pr : artifacts
+        .<PublicResource> find(PublicResource.class)) {
+      if (css.containsKey(pr.getPartialPath())) {
+        css.put(pr.getPartialPath(), new CssPubRsrc(name(logger, pr), pr));
+      }
+    }
+
+    for (Artifact a : artifacts) {
+      if (a instanceof PublicResource) {
+        final PublicResource r = (PublicResource) a;
+        if (css.containsKey(r.getPartialPath())) {
+          a = css.get(r.getPartialPath());
+        }
+      } else if (a instanceof StandardStylesheetReference) {
+        final StandardStylesheetReference r = (StandardStylesheetReference) a;
+        final PublicResource p = css.get(r.getSrc());
+        a = new StandardStylesheetReference(p.getPartialPath(), index);
+      }
+
+      returnTo.add(a);
+      index++;
+    }
+    return returnTo;
+  }
+
+  private String name(final TreeLogger logger, final PublicResource r)
+      throws UnableToCompleteException {
+    final InputStream in = r.getContents(logger);
+    final ByteArrayOutputStream tmp = new ByteArrayOutputStream();
+    try {
+      try {
+        final byte[] buf = new byte[2048];
+        int n;
+        while ((n = in.read(buf)) >= 0) {
+          tmp.write(buf, 0, n);
+        }
+        tmp.close();
+      } finally {
+        in.close();
+      }
+    } catch (IOException e) {
+      final UnableToCompleteException ute = new UnableToCompleteException();
+      ute.initCause(e);
+      throw ute;
+    }
+
+    String base = r.getPartialPath();
+    final int s = base.lastIndexOf('/');
+    if (0 < s) {
+      base = base.substring(0, s + 1);
+    } else {
+      base = "";
+    }
+    return base + Util.computeStrongName(tmp.toByteArray()) + ".cache.css";
+  }
+
+  private static class CssPubRsrc extends PublicResource {
+    private final PublicResource src;
+
+    CssPubRsrc(final String partialPath, final PublicResource r) {
+      super(StandardLinkerContext.class, partialPath);
+      src = r;
+    }
+
+    @Override
+    public InputStream getContents(final TreeLogger logger)
+        throws UnableToCompleteException {
+      return src.getContents(logger);
+    }
+
+    @Override
+    public long getLastModified() {
+      return src.getLastModified();
+    }
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/GlobalKey.gwt.xml b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/GlobalKey.gwt.xml
new file mode 100644
index 0000000000..771050f203
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/GlobalKey.gwt.xml
@@ -0,0 +1,20 @@
+<!--
+ Copyright (C) 2009 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<module>
+  <inherits name='com.google.gwt.resources.Resources'/>
+  <inherits name='com.google.gwtexpui.user.User'/>
+  <inherits name='com.google.gwtexpui.safehtml.SafeHtml'/>
+</module>
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/CompoundKeyCommand.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/CompoundKeyCommand.java
new file mode 100644
index 0000000000..304d56ea39
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/CompoundKeyCommand.java
@@ -0,0 +1,40 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.globalkey.client;
+
+import com.google.gwt.event.dom.client.KeyPressEvent;
+
+public final class CompoundKeyCommand extends KeyCommand {
+  final KeyCommandSet set;
+
+  public CompoundKeyCommand(int mask, char key, String help, KeyCommandSet s) {
+    super(mask, key, help);
+    set = s;
+  }
+
+  public CompoundKeyCommand(int mask, int key, String help, KeyCommandSet s) {
+    super(mask, key, help);
+    set = s;
+  }
+
+  public KeyCommandSet getSet() {
+    return set;
+  }
+
+  @Override
+  public void onKeyPress(final KeyPressEvent event) {
+    GlobalKey.temporaryWithTimeout(set);
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/DocWidget.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/DocWidget.java
new file mode 100644
index 0000000000..d680a72130
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/DocWidget.java
@@ -0,0 +1,51 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.globalkey.client;
+
+import com.google.gwt.dom.client.Document;
+import com.google.gwt.dom.client.Element;
+import com.google.gwt.dom.client.Node;
+import com.google.gwt.event.dom.client.HasKeyPressHandlers;
+import com.google.gwt.event.dom.client.KeyPressEvent;
+import com.google.gwt.event.dom.client.KeyPressHandler;
+import com.google.gwt.event.shared.HandlerRegistration;
+import com.google.gwt.user.client.ui.RootPanel;
+import com.google.gwt.user.client.ui.Widget;
+
+class DocWidget extends Widget implements HasKeyPressHandlers {
+  private static DocWidget me;
+
+  static DocWidget get() {
+    if (me == null) {
+      me = new DocWidget();
+    }
+    return me;
+  }
+
+  private DocWidget() {
+    setElement((Element) docnode());
+    onAttach();
+    RootPanel.detachOnWindowClose(this);
+  }
+
+  @Override
+  public HandlerRegistration addKeyPressHandler(KeyPressHandler handler) {
+    return addDomHandler(handler, KeyPressEvent.getType());
+  }
+
+  private static Node docnode() {
+    return Document.get();
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/GlobalKey.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/GlobalKey.java
new file mode 100644
index 0000000000..1eaaa3cfdc
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/GlobalKey.java
@@ -0,0 +1,183 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.globalkey.client;
+
+import com.google.gwt.event.dom.client.KeyCodes;
+import com.google.gwt.event.dom.client.KeyPressEvent;
+import com.google.gwt.event.dom.client.KeyPressHandler;
+import com.google.gwt.event.logical.shared.CloseEvent;
+import com.google.gwt.event.logical.shared.CloseHandler;
+import com.google.gwt.event.shared.HandlerRegistration;
+import com.google.gwt.user.client.Timer;
+import com.google.gwt.user.client.ui.PopupPanel;
+import com.google.gwt.user.client.ui.Widget;
+
+
+public class GlobalKey {
+  public static final KeyPressHandler STOP_PROPAGATION = new KeyPressHandler() {
+    @Override
+    public void onKeyPress(final KeyPressEvent event) {
+      event.stopPropagation();
+    }
+  };
+
+  private static State global;
+  static State active;
+  private static CloseHandler<PopupPanel> restoreGlobal;
+  private static Timer restoreTimer;
+
+  static {
+    KeyResources.I.css().ensureInjected();
+  }
+
+  private static void initEvents() {
+    if (active == null) {
+      DocWidget.get().addKeyPressHandler(new KeyPressHandler() {
+        @Override
+        public void onKeyPress(final KeyPressEvent event) {
+          final KeyCommandSet s = active.live;
+          if (s != active.all) {
+            active.live = active.all;
+            restoreTimer.cancel();
+          }
+          s.onKeyPress(event);
+        }
+      });
+
+      restoreTimer = new Timer() {
+        @Override
+        public void run() {
+          active.live = active.all;
+        }
+      };
+
+      global = new State(null);
+      active = global;
+    }
+  }
+
+  private static void initDialog() {
+    if (restoreGlobal == null) {
+      restoreGlobal = new CloseHandler<PopupPanel>() {
+        @Override
+        public void onClose(final CloseEvent<PopupPanel> event) {
+          active = global;
+        }
+      };
+    }
+  }
+
+  static void temporaryWithTimeout(final KeyCommandSet s) {
+    active.live = s;
+    restoreTimer.schedule(250);
+  }
+
+  public static void dialog(final PopupPanel panel) {
+    initEvents();
+    initDialog();
+    assert panel.isShowing();
+    assert active == global;
+    active = new State(panel);
+    active.add(new HidePopupPanelCommand(0, KeyCodes.KEY_ESCAPE, panel));
+    panel.addCloseHandler(restoreGlobal);
+  }
+
+  public static HandlerRegistration addApplication(final Widget widget,
+      final KeyCommand appKey) {
+    initEvents();
+    final State state = stateFor(widget);
+    state.add(appKey);
+    return new HandlerRegistration() {
+      @Override
+      public void removeHandler() {
+        state.remove(appKey);
+      }
+    };
+  }
+
+  public static HandlerRegistration add(final Widget widget,
+      final KeyCommandSet cmdSet) {
+    initEvents();
+    final State state = stateFor(widget);
+    state.add(cmdSet);
+    return new HandlerRegistration() {
+      @Override
+      public void removeHandler() {
+        state.remove(cmdSet);
+      }
+    };
+  }
+
+  private static State stateFor(Widget w) {
+    while (w != null) {
+      if (w == active.root) {
+        return active;
+      }
+      w = w.getParent();
+    }
+    return global;
+  }
+
+  public static void filter(final KeyCommandFilter filter) {
+    active.filter(filter);
+    if (active != global) {
+      global.filter(filter);
+    }
+  }
+
+  private GlobalKey() {
+  }
+
+  static class State {
+    final Widget root;
+    final KeyCommandSet app;
+    final KeyCommandSet all;
+    KeyCommandSet live;
+
+    State(final Widget r) {
+      root = r;
+
+      app = new KeyCommandSet(KeyConstants.I.applicationSection());
+      app.add(ShowHelpCommand.INSTANCE);
+
+      all = new KeyCommandSet();
+      all.add(app);
+
+      live = all;
+    }
+
+    void add(final KeyCommand k) {
+      app.add(k);
+      all.add(k);
+    }
+
+    void remove(final KeyCommand k) {
+      app.remove(k);
+      all.remove(k);
+    }
+
+    void add(final KeyCommandSet s) {
+      all.add(s);
+    }
+
+    void remove(final KeyCommandSet s) {
+      all.remove(s);
+    }
+
+    void filter(final KeyCommandFilter f) {
+      all.filter(f);
+    }
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/HidePopupPanelCommand.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/HidePopupPanelCommand.java
new file mode 100644
index 0000000000..0274b9d2f6
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/HidePopupPanelCommand.java
@@ -0,0 +1,33 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.globalkey.client;
+
+import com.google.gwt.event.dom.client.KeyPressEvent;
+import com.google.gwt.user.client.ui.PopupPanel;
+
+/** Hides the given popup panel when invoked. */
+public class HidePopupPanelCommand extends KeyCommand {
+  private final PopupPanel panel;
+
+  public HidePopupPanelCommand(int mask, int key, PopupPanel panel) {
+    super(mask, key, KeyConstants.I.closeCurrentDialog());
+    this.panel = panel;
+  }
+
+  @Override
+  public void onKeyPress(final KeyPressEvent event) {
+    panel.hide();
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/KeyCommand.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/KeyCommand.java
new file mode 100644
index 0000000000..ba4f62649d
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/KeyCommand.java
@@ -0,0 +1,94 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.globalkey.client;
+
+import com.google.gwt.event.dom.client.KeyCodes;
+import com.google.gwt.event.dom.client.KeyPressHandler;
+import com.google.gwtexpui.safehtml.client.SafeHtml;
+import com.google.gwtexpui.safehtml.client.SafeHtmlBuilder;
+
+
+public abstract class KeyCommand implements KeyPressHandler {
+  public static final int M_CTRL = 1 << 16;
+  public static final int M_ALT = 2 << 16;
+  public static final int M_META = 4 << 16;
+
+  public static boolean same(final KeyCommand a, final KeyCommand b) {
+    return a.getClass() == b.getClass() && a.helpText.equals(b.helpText);
+  }
+
+  final int keyMask;
+  private final String helpText;
+
+  public KeyCommand(final int mask, final int key, final String help) {
+    this(mask, (char) key, help);
+  }
+
+  public KeyCommand(final int mask, final char key, final String help) {
+    assert help != null;
+    keyMask = mask | key;
+    helpText = help;
+  }
+
+  public String getHelpText() {
+    return helpText;
+  }
+
+  SafeHtml describeKeyStroke() {
+    final SafeHtmlBuilder b = new SafeHtmlBuilder();
+
+    if ((keyMask & M_CTRL) == M_CTRL) {
+      modifier(b, KeyConstants.I.keyCtrl());
+    }
+    if ((keyMask & M_ALT) == M_ALT) {
+      modifier(b, KeyConstants.I.keyAlt());
+    }
+    if ((keyMask & M_META) == M_META) {
+      modifier(b, KeyConstants.I.keyMeta());
+    }
+
+    final char c = (char) (keyMask & 0xffff);
+    switch (c) {
+      case KeyCodes.KEY_ENTER:
+        namedKey(b, KeyConstants.I.keyEnter());
+        break;
+      case KeyCodes.KEY_ESCAPE:
+        namedKey(b, KeyConstants.I.keyEsc());
+        break;
+      default:
+        b.openSpan();
+        b.setStyleName(KeyResources.I.css().helpKey());
+        b.append(String.valueOf(c));
+        b.closeSpan();
+        break;
+    }
+
+    return b;
+  }
+
+  private void modifier(final SafeHtmlBuilder b, final String name) {
+    namedKey(b, name);
+    b.append(" + ");
+  }
+
+  private void namedKey(final SafeHtmlBuilder b, final String name) {
+    b.append('<');
+    b.openSpan();
+    b.setStyleName(KeyResources.I.css().helpKey());
+    b.append(name);
+    b.closeSpan();
+    b.append(">");
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/KeyCommandFilter.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/KeyCommandFilter.java
new file mode 100644
index 0000000000..05f41d4b63
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/KeyCommandFilter.java
@@ -0,0 +1,19 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.globalkey.client;
+
+public interface KeyCommandFilter {
+  public boolean include(KeyCommand key);
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/KeyCommandSet.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/KeyCommandSet.java
new file mode 100644
index 0000000000..4f3205abff
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/KeyCommandSet.java
@@ -0,0 +1,136 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.globalkey.client;
+
+import com.google.gwt.event.dom.client.KeyPressEvent;
+import com.google.gwt.event.dom.client.KeyPressHandler;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+
+public class KeyCommandSet implements KeyPressHandler {
+  private final Map<Integer, KeyCommand> map;
+  private List<KeyCommandSet> sets;
+  private String name;
+
+  public KeyCommandSet() {
+    this("");
+  }
+
+  public KeyCommandSet(final String setName) {
+    map = new HashMap<Integer, KeyCommand>();
+    name = setName;
+  }
+
+  public String getName() {
+    return name;
+  }
+
+  public void setName(final String setName) {
+    assert setName != null;
+    name = setName;
+  }
+
+  public boolean isEmpty() {
+    return map.isEmpty();
+  }
+
+  public void add(final KeyCommand k) {
+    assert !map.containsKey(k.keyMask)
+         : "Key " + k.describeKeyStroke().asString()
+         + " already registered";
+    if (!map.containsKey(k.keyMask)) {
+      map.put(k.keyMask, k);
+    }
+  }
+
+  public void remove(final KeyCommand k) {
+    assert map.get(k.keyMask) == k;
+    map.remove(k.keyMask);
+  }
+
+  public void add(final KeyCommandSet set) {
+    if (sets == null) {
+      sets = new ArrayList<KeyCommandSet>();
+    }
+    assert !sets.contains(set);
+    sets.add(set);
+    for (final KeyCommand k : set.map.values()) {
+      add(k);
+    }
+  }
+
+  public void remove(final KeyCommandSet set) {
+    assert sets != null;
+    assert sets.contains(set);
+    sets.remove(set);
+    for (final KeyCommand k : set.map.values()) {
+      remove(k);
+    }
+  }
+
+  public void filter(final KeyCommandFilter filter) {
+    if (sets != null) {
+      for (final KeyCommandSet s : sets) {
+        s.filter(filter);
+      }
+    }
+    for (final Iterator<KeyCommand> i = map.values().iterator(); i.hasNext();) {
+      final KeyCommand kc = i.next();
+      if (!filter.include(kc)) {
+        i.remove();
+      } else if (kc instanceof CompoundKeyCommand) {
+        ((CompoundKeyCommand) kc).set.filter(filter);
+      }
+    }
+  }
+
+  public Collection<KeyCommand> getKeys() {
+    return map.values();
+  }
+
+  public Collection<KeyCommandSet> getSets() {
+    return sets != null ? sets : Collections.<KeyCommandSet> emptyList();
+  }
+
+  @Override
+  public void onKeyPress(final KeyPressEvent event) {
+    final KeyCommand k = map.get(toMask(event));
+    if (k != null) {
+      event.preventDefault();
+      event.stopPropagation();
+      k.onKeyPress(event);
+    }
+  }
+
+  static int toMask(final KeyPressEvent event) {
+    int mask = event.getCharCode();
+    if (event.isAltKeyDown()) {
+      mask |= KeyCommand.M_ALT;
+    }
+    if (event.isControlKeyDown()) {
+      mask |= KeyCommand.M_CTRL;
+    }
+    if (event.isMetaKeyDown()) {
+      mask |= KeyCommand.M_META;
+    }
+    return mask;
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/KeyConstants.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/KeyConstants.java
new file mode 100644
index 0000000000..56fb85c71e
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/KeyConstants.java
@@ -0,0 +1,37 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.globalkey.client;
+
+import com.google.gwt.core.client.GWT;
+import com.google.gwt.i18n.client.Constants;
+
+public interface KeyConstants extends Constants {
+  public static final KeyConstants I = GWT.create(KeyConstants.class);
+
+  String applicationSection();
+  String showHelp();
+  String closeCurrentDialog();
+
+  String keyboardShortcuts();
+  String closeButton();
+  String orOtherKey();
+  String thenOtherKey();
+
+  String keyCtrl();
+  String keyAlt();
+  String keyMeta();
+  String keyEnter();
+  String keyEsc();
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/KeyConstants.properties b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/KeyConstants.properties
new file mode 100644
index 0000000000..e21daf502e
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/KeyConstants.properties
@@ -0,0 +1,14 @@
+applicationSection = Application
+showHelp = Open shortcut help
+closeCurrentDialog = Close current dialog
+
+keyboardShortcuts = Keyboard Shortcuts
+closeButton = Close
+orOtherKey = or
+thenOtherKey = then
+
+keyCtrl = Ctrl
+keyAlt = Alt
+keyMeta = Meta
+keyEnter = Enter
+keyEsc = Esc
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/KeyCss.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/KeyCss.java
new file mode 100644
index 0000000000..d19018de8f
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/KeyCss.java
@@ -0,0 +1,29 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.globalkey.client;
+
+import com.google.gwt.resources.client.CssResource;
+
+public interface KeyCss extends CssResource {
+  String helpPopup();
+  String helpHeader();
+  String helpHeaderGlue();
+  String helpTable();
+  String helpTableGlue();
+  String helpGroup();
+  String helpKeyStroke();
+  String helpSeparator();
+  String helpKey();
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/KeyHelpPopup.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/KeyHelpPopup.java
new file mode 100644
index 0000000000..7bd023396d
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/KeyHelpPopup.java
@@ -0,0 +1,228 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.globalkey.client;
+
+import com.google.gwt.event.dom.client.ClickEvent;
+import com.google.gwt.event.dom.client.ClickHandler;
+import com.google.gwt.event.dom.client.KeyPressEvent;
+import com.google.gwt.event.dom.client.KeyPressHandler;
+import com.google.gwt.user.client.DOM;
+import com.google.gwt.user.client.ui.Anchor;
+import com.google.gwt.user.client.ui.FlowPanel;
+import com.google.gwt.user.client.ui.FocusPanel;
+import com.google.gwt.user.client.ui.Grid;
+import com.google.gwt.user.client.ui.HasHorizontalAlignment;
+import com.google.gwt.user.client.ui.HTMLTable.CellFormatter;
+import com.google.gwtexpui.safehtml.client.SafeHtml;
+import com.google.gwtexpui.safehtml.client.SafeHtmlBuilder;
+import com.google.gwtexpui.user.client.PluginSafePopupPanel;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.LinkedHashMap;
+import java.util.List;
+
+
+public class KeyHelpPopup extends PluginSafePopupPanel implements
+    KeyPressHandler {
+  private final FocusPanel focus;
+
+  public KeyHelpPopup() {
+    super(true/* autohide */, true/* modal */);
+    setStyleName(KeyResources.I.css().helpPopup());
+
+    final Anchor closer = new Anchor(KeyConstants.I.closeButton());
+    closer.addClickHandler(new ClickHandler() {
+      @Override
+      public void onClick(final ClickEvent event) {
+        hide();
+      }
+    });
+
+    final Grid header = new Grid(1, 3);
+    header.setStyleName(KeyResources.I.css().helpHeader());
+    header.setText(0, 0, KeyConstants.I.keyboardShortcuts());
+    header.setWidget(0, 2, closer);
+
+    final CellFormatter fmt = header.getCellFormatter();
+    fmt.addStyleName(0, 1, KeyResources.I.css().helpHeaderGlue());
+    fmt.setHorizontalAlignment(0, 2, HasHorizontalAlignment.ALIGN_RIGHT);
+
+    final Grid lists = new Grid(0, 7);
+    lists.setStyleName(KeyResources.I.css().helpTable());
+    populate(lists);
+    lists.getCellFormatter().addStyleName(0, 3,
+        KeyResources.I.css().helpTableGlue());
+
+    final FlowPanel body = new FlowPanel();
+    body.add(header);
+    DOM.appendChild(body.getElement(), DOM.createElement("hr"));
+    body.add(lists);
+
+    focus = new FocusPanel(body);
+    DOM.setStyleAttribute(focus.getElement(), "outline", "0px");
+    DOM.setElementAttribute(focus.getElement(), "hideFocus", "true");
+    focus.addKeyPressHandler(this);
+    add(focus);
+  }
+
+  @Override
+  public void setVisible(final boolean show) {
+    super.setVisible(show);
+    if (show) {
+      focus.setFocus(true);
+    }
+  }
+
+  @Override
+  public void onKeyPress(final KeyPressEvent event) {
+    if (KeyCommandSet.toMask(event) == ShowHelpCommand.INSTANCE.keyMask) {
+      // Block the '?' key from triggering us to show right after
+      // we just hide ourselves.
+      //
+      event.stopPropagation();
+      event.preventDefault();
+    }
+    hide();
+  }
+
+  private void populate(final Grid lists) {
+    int end[] = new int[5];
+    int column = 0;
+    for (final KeyCommandSet set : combinedSetsByName()) {
+      int row = end[column];
+      row = formatGroup(lists, row, column, set);
+      end[column] = row;
+      if (column == 0) {
+        column = 4;
+      } else {
+        column = 0;
+      }
+    }
+  }
+
+  /**
+   * @return an ordered collection of KeyCommandSet, combining sets which share
+   *         the same name, so that each set name appears at most once.
+   */
+  private static Collection<KeyCommandSet> combinedSetsByName() {
+    final LinkedHashMap<String, KeyCommandSet> byName =
+        new LinkedHashMap<String, KeyCommandSet>();
+    for (final KeyCommandSet set : GlobalKey.active.all.getSets()) {
+      KeyCommandSet v = byName.get(set.getName());
+      if (v == null) {
+        v = new KeyCommandSet(set.getName());
+        byName.put(v.getName(), v);
+      }
+      v.add(set);
+    }
+    return byName.values();
+  }
+
+  private int formatGroup(final Grid lists, int row, final int col,
+      final KeyCommandSet set) {
+    if (set.isEmpty()) {
+      return row;
+    }
+
+    if (lists.getRowCount() < row + 1) {
+      lists.resizeRows(row + 1);
+    }
+    lists.setText(row, col + 2, set.getName());
+    lists.getCellFormatter().addStyleName(row, col + 2,
+        KeyResources.I.css().helpGroup());
+    row++;
+
+    return formatKeys(lists, row, col, set, null);
+  }
+
+  private int formatKeys(final Grid lists, int row, final int col,
+      final KeyCommandSet set, final SafeHtml prefix) {
+    final CellFormatter fmt = lists.getCellFormatter();
+    final int initialRow = row;
+    final List<KeyCommand> keys = sort(set);
+    if (lists.getRowCount() < row + keys.size()) {
+      lists.resizeRows(row + keys.size());
+    }
+    FORMAT_KEYS: for (int i = 0; i < keys.size(); i++) {
+      final KeyCommand k = keys.get(i);
+
+      if (k instanceof CompoundKeyCommand) {
+        final SafeHtmlBuilder b = new SafeHtmlBuilder();
+        b.append(k.describeKeyStroke());
+        row = formatKeys(lists, row, col, ((CompoundKeyCommand) k).getSet(), b);
+        continue;
+      }
+
+      for (int prior = 0; prior < i; prior++) {
+        if (KeyCommand.same(keys.get(prior), k)) {
+          final int r = initialRow + prior;
+          final SafeHtmlBuilder b = new SafeHtmlBuilder();
+          b.append(SafeHtml.get(lists, r, col + 0));
+          b.append(" ");
+          b.append(KeyConstants.I.orOtherKey());
+          b.append(" ");
+          if (prefix != null) {
+            b.append(prefix);
+            b.append(" ");
+            b.append(KeyConstants.I.thenOtherKey());
+            b.append(" ");
+          }
+          b.append(k.describeKeyStroke());
+          SafeHtml.set(lists, r, col + 0, b);
+          continue FORMAT_KEYS;
+        }
+      }
+
+      if (prefix != null) {
+        final SafeHtmlBuilder b = new SafeHtmlBuilder();
+        b.append(prefix);
+        b.append(" ");
+        b.append(KeyConstants.I.thenOtherKey());
+        b.append(" ");
+        b.append(k.describeKeyStroke());
+        SafeHtml.set(lists, row, col + 0, b);
+      } else {
+        SafeHtml.set(lists, row, col + 0, k.describeKeyStroke());
+      }
+      lists.setText(row, col + 1, ":");
+      lists.setText(row, col + 2, k.getHelpText());
+
+      fmt.addStyleName(row, col + 0, KeyResources.I.css().helpKeyStroke());
+      fmt.addStyleName(row, col + 1, KeyResources.I.css().helpSeparator());
+      row++;
+    }
+
+    return row;
+  }
+
+  private List<KeyCommand> sort(final KeyCommandSet set) {
+    final List<KeyCommand> keys = new ArrayList<KeyCommand>(set.getKeys());
+    Collections.sort(keys, new Comparator<KeyCommand>() {
+      @Override
+      public int compare(KeyCommand arg0, KeyCommand arg1) {
+        if (arg0.keyMask < arg1.keyMask) {
+          return -1;
+        } else if (arg0.keyMask > arg1.keyMask) {
+          return 1;
+        }
+        return 0;
+      }
+    });
+    return keys;
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/KeyResources.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/KeyResources.java
new file mode 100644
index 0000000000..a52ca2a5e9
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/KeyResources.java
@@ -0,0 +1,25 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.globalkey.client;
+
+import com.google.gwt.core.client.GWT;
+import com.google.gwt.resources.client.ClientBundle;
+
+public interface KeyResources extends ClientBundle {
+  public static final KeyResources I = GWT.create(KeyResources.class);
+
+  @Source("key.css")
+  KeyCss css();
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/NpTextArea.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/NpTextArea.java
new file mode 100644
index 0000000000..c06d2c427f
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/NpTextArea.java
@@ -0,0 +1,34 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.globalkey.client;
+
+import com.google.gwt.dom.client.Element;
+import com.google.gwt.user.client.DOM;
+import com.google.gwt.user.client.ui.TextArea;
+
+public class NpTextArea extends TextArea {
+  public NpTextArea() {
+    addKeyPressHandler(GlobalKey.STOP_PROPAGATION);
+  }
+
+  public NpTextArea(final Element element) {
+    super(element);
+    addKeyPressHandler(GlobalKey.STOP_PROPAGATION);
+  }
+
+  public void setSpellCheck(boolean spell) {
+    DOM.setElementPropertyBoolean(getElement(), "spellcheck", spell);
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/NpTextBox.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/NpTextBox.java
new file mode 100644
index 0000000000..86402e1771
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/NpTextBox.java
@@ -0,0 +1,29 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.globalkey.client;
+
+import com.google.gwt.dom.client.Element;
+import com.google.gwt.user.client.ui.TextBox;
+
+public class NpTextBox extends TextBox {
+  public NpTextBox() {
+    addKeyPressHandler(GlobalKey.STOP_PROPAGATION);
+  }
+
+  public NpTextBox(final Element element) {
+    super(element);
+    addKeyPressHandler(GlobalKey.STOP_PROPAGATION);
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/ShowHelpCommand.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/ShowHelpCommand.java
new file mode 100644
index 0000000000..50a4a86d60
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/ShowHelpCommand.java
@@ -0,0 +1,61 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.globalkey.client;
+
+import com.google.gwt.event.dom.client.KeyPressEvent;
+import com.google.gwt.event.logical.shared.CloseEvent;
+import com.google.gwt.event.logical.shared.CloseHandler;
+import com.google.gwt.user.client.Window;
+import com.google.gwt.user.client.ui.PopupPanel;
+import com.google.gwt.user.client.ui.PopupPanel.PositionCallback;
+
+
+public class ShowHelpCommand extends KeyCommand {
+  public static final ShowHelpCommand INSTANCE = new ShowHelpCommand();
+  private static KeyHelpPopup current;
+
+  public ShowHelpCommand() {
+    super(0, '?', KeyConstants.I.showHelp());
+  }
+
+  @Override
+  public void onKeyPress(final KeyPressEvent event) {
+    if (current != null) {
+      // Already open? Close the dialog.
+      //
+      current.hide();
+      current = null;
+      return;
+    }
+
+    final KeyHelpPopup help = new KeyHelpPopup();
+    help.addCloseHandler(new CloseHandler<PopupPanel>() {
+      @Override
+      public void onClose(final CloseEvent<PopupPanel> event) {
+        current = null;
+      }
+    });
+    current = help;
+    help.setPopupPositionAndShow(new PositionCallback() {
+      @Override
+      public void setPosition(final int pWidth, final int pHeight) {
+        final int left = (Window.getClientWidth() - pWidth) >> 1;
+        final int wLeft = Window.getScrollLeft();
+        final int wTop = Window.getScrollTop();
+        help.setPopupPosition(wLeft + left, wTop + 50);
+      }
+    });
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/key.css b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/key.css
new file mode 100644
index 0000000000..9372e45a6e
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/globalkey/client/key.css
@@ -0,0 +1,99 @@
+/* Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+@external .popupContent;
+
+.helpPopup {
+  background: #000000 none repeat scroll 0 50%;
+  color: #ffffff;
+  font-family: arial,sans-serif;
+  font-weight: bold;
+  overflow: hidden;
+  text-align: left;
+  text-shadow: 1px 1px 7px #000000;
+  width: 92%;
+  z-index: 1002;
+  opacity: 0.85;
+ }
+
+@if user.agent safari {
+  .helpPopup {
+    \-webkit-border-radius: 10px;
+  }
+}
+@if user.agent gecko1_8 {
+  .helpPopup {
+    \-moz-border-radius: 10px;
+  }
+}
+
+.helpPopup .popupContent {
+  margin: 10px;
+}
+
+.helpPopup hr {
+  width: 100%;
+}
+
+.helpHeader {
+  width: 100%;
+}
+
+.helpHeader td {
+  white-space: nowrap;
+  color: #ffffff;
+}
+
+.helpHeader a,
+.helpHeader a:visited,
+.helpHeader a:hover {
+  color: #dddd00;
+}
+
+.helpHeaderGlue {
+  width: 100%;
+}
+
+.helpTable {
+  width: 90%;
+}
+.helpTable td {
+  vertical-align: top;
+  white-space: nowrap;
+}
+
+.helpTableGlue {
+  width: 25px;
+}
+
+.helpGroup {
+  color: #dddd00;
+  padding-top: 0.8em;
+  text-align: left;
+}
+
+.helpKeyStroke {
+  text-align: right;
+}
+
+.helpSeparator {
+  width: 0.5em;
+  text-align: center;
+  font-weight: bold;
+}
+
+.helpKey {
+  color: #dddd00;
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/linker/ServerPlannedIFrameLinker.gwt.xml b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/linker/ServerPlannedIFrameLinker.gwt.xml
new file mode 100644
index 0000000000..a6978ab1da
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/linker/ServerPlannedIFrameLinker.gwt.xml
@@ -0,0 +1,19 @@
+<!--
+ Copyright (C) 2009 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http:..www.apache.org.licenses.LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<module>
+  <define-linker name='serverplanned' class='com.google.gwtexpui.linker.rebind.ServerPlannedIFrameLinker'/>
+  <add-linker name='serverplanned'/>
+</module>
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/linker/rebind/ServerPlannedIFrameLinker.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/linker/rebind/ServerPlannedIFrameLinker.java
new file mode 100644
index 0000000000..6fd8f21191
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/linker/rebind/ServerPlannedIFrameLinker.java
@@ -0,0 +1,68 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.linker.rebind;
+
+import com.google.gwt.core.ext.LinkerContext;
+import com.google.gwt.core.ext.TreeLogger;
+import com.google.gwt.core.ext.UnableToCompleteException;
+import com.google.gwt.core.ext.linker.AbstractLinker;
+import com.google.gwt.core.ext.linker.ArtifactSet;
+import com.google.gwt.core.ext.linker.CompilationResult;
+import com.google.gwt.core.ext.linker.LinkerOrder;
+import com.google.gwt.core.ext.linker.SelectionProperty;
+import com.google.gwt.core.ext.linker.StylesheetReference;
+
+import java.util.Map;
+import java.util.SortedMap;
+
+/** Saves data normally used by the {@code nocache.js} file. */
+@LinkerOrder(LinkerOrder.Order.POST)
+public class ServerPlannedIFrameLinker extends AbstractLinker {
+  @Override
+  public String getDescription() {
+    return "ServerPlannedIFrameLinker";
+  }
+
+  @SuppressWarnings("unchecked")
+  @Override
+  public ArtifactSet link(final TreeLogger logger, final LinkerContext context,
+      final ArtifactSet artifacts) throws UnableToCompleteException {
+    ArtifactSet toReturn = new ArtifactSet(artifacts);
+
+    StringBuilder table = new StringBuilder();
+    for (StylesheetReference r : artifacts.find(StylesheetReference.class)) {
+      table.append("css ");
+      table.append(r.getSrc());
+      table.append("\n");
+    }
+
+    for (CompilationResult r : artifacts.find(CompilationResult.class)) {
+      table.append(r.getStrongName() + "\n");
+      for (SortedMap<SelectionProperty, String> p : r.getPropertyMap()) {
+        for (Map.Entry<SelectionProperty, String> e : p.entrySet()) {
+          table.append("  ");
+          table.append(e.getKey().getName());
+          table.append("=");
+          table.append(e.getValue());
+          table.append('\n');
+        }
+      }
+      table.append("\n");
+    }
+
+    toReturn.add(emitString(logger, table.toString(), "permutations"));
+    return toReturn;
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/linker/server/ClientSideRule.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/linker/server/ClientSideRule.java
new file mode 100644
index 0000000000..89da5292bf
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/linker/server/ClientSideRule.java
@@ -0,0 +1,36 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.linker.server;
+
+import javax.servlet.http.HttpServletRequest;
+
+/** A rule that must execute on the client, as we don't know how to compute it. */
+final class ClientSideRule implements Rule {
+  private final String name;
+
+  ClientSideRule(String name) {
+    this.name = name;
+  }
+
+  @Override
+  public String getName() {
+    return name;
+  }
+
+  @Override
+  public String select(HttpServletRequest req) {
+    return null;
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/linker/server/Permutation.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/linker/server/Permutation.java
new file mode 100644
index 0000000000..b319db1458
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/linker/server/Permutation.java
@@ -0,0 +1,160 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.linker.server;
+
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.Arrays;
+
+/** A single permutation of the compiled GWT application. */
+public class Permutation {
+  private final PermutationSelector selector;
+  private final String cacheHTML;
+  private final String[] values;
+
+  Permutation(PermutationSelector sel, String cacheHTML, String[] values) {
+    this.selector = sel;
+    this.cacheHTML = cacheHTML;
+    this.values = values;
+  }
+
+  boolean matches(String[] r) {
+    return Arrays.equals(values, r);
+  }
+
+  /**
+   * Append GWT bootstrap for this permutation onto the end of the body.
+   * <p>
+   * The GWT bootstrap for this particular permutation is appended onto the end
+   * of the {@code body} element of the passed host page.
+   * <p>
+   * To keep the bootstrap code small and simple, not all GWT features are
+   * actually supported. The {@code gwt:property}, {@code gwt:onPropertyErrorFn}
+   * and {@code gwt:onLoadErrorFn} meta tags are ignored and not handled.
+   * <p>
+   * Load order may differ from the standard GWT {@code nocache.js}. The browser
+   * is asked to load the iframe immediately, rather than after the body has
+   * finished loading.
+   *
+   * @param dom host page HTML document.
+   */
+  public void inject(Document dom) {
+    String moduleName = selector.getModuleName();
+    String moduleFunc = moduleName;
+
+    StringBuilder s = new StringBuilder();
+    s.append("\n");
+    s.append("function " + moduleFunc + "(){");
+    s.append("var s,l,t");
+    s.append(",w=window");
+    s.append(",d=document");
+    s.append(",n='" + moduleName + "'");
+    s.append(",f=d.createElement('iframe')");
+    s.append(";");
+
+    // Callback to execute the module once both s and l are true.
+    //
+    s.append("function m(){");
+    s.append("if(s&&l){");
+    // Base path needs to be absolute. There isn't an easy way to do this
+    // other than forcing an image to load and then pulling the URL back.
+    //
+    s.append("var b,i=d.createElement('img');");
+    s.append("i.src=n+'/clear.cache.gif';");
+    s.append("b=i.src;");
+    s.append("b=b.substring(0,b.lastIndexOf('/')+1);");
+    s.append(moduleFunc + "=null;"); // allow us to GC
+    s.append("f.contentWindow.gwtOnLoad(undefined,n,b);");
+    s.append("}");
+    s.append("}");
+
+    // Set s true when the module script has finished loading. The
+    // exact name here is known to the IFrameLinker and is called by
+    // the code in the iframe.
+    //
+    s.append(moduleFunc + ".onScriptLoad=function(){");
+    s.append("s=1;m();");
+    s.append("};");
+
+    // Set l true when the browser has finished processing the iframe
+    // tag, and everything else on the page.
+    //
+    s.append(moduleFunc + ".r=function(){");
+    s.append("l=1;m();");
+    s.append("};");
+
+    // Prevents mixed mode security in IE6/7.
+    s.append("f.src=\"javascript:''\";");
+    s.append("f.id=n;");
+    s.append("f.style.cssText"
+        + "='position:absolute;width:0;height:0;border:none';");
+    s.append("f.tabIndex=-1;");
+    s.append("d.body.appendChild(f);");
+
+    // The src has to be set after the iframe is attached to the DOM to avoid
+    // refresh quirks in Safari. We have to use the location.replace trick to
+    // avoid FF2 refresh quirks.
+    //
+    s.append("f.contentWindow.location.replace(n+'/" + cacheHTML + "');");
+
+    // defer attribute here is to workaround IE running immediately.
+    //
+    s.append("d.write('<script defer=\"defer\">" //
+        + moduleFunc + ".r()</'+'script>');");
+    s.append("}");
+    s.append(moduleFunc + "();");
+    s.append("\n//");
+
+    final Element html = dom.getDocumentElement();
+    final Element head = (Element) html.getElementsByTagName("head").item(0);
+    final Element body = (Element) html.getElementsByTagName("body").item(0);
+
+    for (String css : selector.getCSS()) {
+      if (isRelativeURL(css)) {
+        css = moduleName + '/' + css;
+      }
+
+      final Element link = dom.createElement("link");
+      link.setAttribute("rel", "stylesheet");
+      link.setAttribute("href", css);
+      head.appendChild(link);
+    }
+
+    final Element script = dom.createElement("script");
+    script.setAttribute("type", "text/javascript");
+    script.setAttribute("language", "javascript");
+    script.appendChild(dom.createComment(s.toString()));
+    body.appendChild(script);
+  }
+
+  private static boolean isRelativeURL(String src) {
+    if (src.startsWith("/")) {
+      return false;
+    }
+
+    try {
+      // If it parses as a URL, assume it is not relative.
+      //
+      new URL(src);
+      return false;
+    } catch (MalformedURLException e) {
+    }
+
+    return true;
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/linker/server/PermutationSelector.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/linker/server/PermutationSelector.java
new file mode 100644
index 0000000000..d3e5ae35e4
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/linker/server/PermutationSelector.java
@@ -0,0 +1,205 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.linker.server;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+
+import javax.servlet.ServletContext;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+
+/**
+ * Selects a permutation based on the HTTP request.
+ * <p>
+ * To use this class the application's GWT module must include our linker by
+ * inheriting our module:
+ *
+ * <pre>
+ *   &lt;inherits name='com.google.gwtexpui.linker.ServerPlannedIFrameLinker'/&gt;
+ * </pre>
+ */
+public class PermutationSelector {
+  private final String moduleName;
+  private final Map<String, Rule> rulesByName;
+  private final List<Rule> ruleOrder;
+  private final List<Permutation> permutations;
+  private final List<String> css;
+
+  /**
+   * Create an empty selector for a module.
+   * <p>
+   * {@link UserAgentRule} rule is automatically registered. Additional custom
+   * selector rules may be registered before {@link #init(ServletContext)} is
+   * called to finish the selector setup.
+   *
+   * @param moduleName the name of the module within the context.
+   */
+  public PermutationSelector(final String moduleName) {
+    this.moduleName = moduleName;
+
+    this.rulesByName = new HashMap<String, Rule>();
+    this.ruleOrder = new ArrayList<Rule>();
+    this.permutations = new ArrayList<Permutation>();
+    this.css = new ArrayList<String>();
+
+    register(new UserAgentRule());
+  }
+
+  private void notInitialized() {
+    if (!ruleOrder.isEmpty()) {
+      throw new IllegalStateException("Already initialized");
+    }
+  }
+
+  /**
+   * Register a property selection rule.
+   *
+   * @param r the rule implementation.
+   */
+  public void register(Rule r) {
+    notInitialized();
+    rulesByName.put(r.getName(), r);
+  }
+
+  /**
+   * Initialize the selector by reading the module's {@code permutations} file.
+   *
+   * @param ctx context to load the module data from.
+   * @throws ServletException
+   * @throws IOException
+   */
+  public void init(ServletContext ctx) throws ServletException, IOException {
+    notInitialized();
+
+    final String tableName = "/" + moduleName + "/permutations";
+    final InputStream in = ctx.getResourceAsStream(tableName);
+    if (in == null) {
+      throw new ServletException("No " + tableName + " in context");
+    }
+    try {
+      BufferedReader r = new BufferedReader(new InputStreamReader(in, "UTF-8"));
+      for (;;) {
+        final String strongName = r.readLine();
+        if (strongName == null) {
+          break;
+        }
+
+        if (strongName.startsWith("css ")) {
+          css.add(strongName.substring("css ".length()));
+          continue;
+        }
+
+        Map<String, String> selections = new LinkedHashMap<String, String>();
+        for (;;) {
+          String permutation = r.readLine();
+          if (permutation == null || permutation.isEmpty()) {
+            break;
+          }
+
+          int eq = permutation.indexOf('=');
+          if (eq < 0) {
+            throw new ServletException(tableName + " has malformed content");
+          }
+
+          String k = permutation.substring(0, eq).trim();
+          String v = permutation.substring(eq + 1);
+
+          Rule rule = get(k);
+          if (!ruleOrder.contains(rule)) {
+            ruleOrder.add(rule);
+          }
+
+          if (selections.put(k, v) != null) {
+            throw new ServletException("Table " + tableName
+                + " has multiple values for " + k + " within permutation "
+                + strongName);
+          }
+        }
+
+        String cacheHtml = strongName + ".cache.html";
+        String[] values = new String[ruleOrder.size()];
+        for (int i = 0; i < values.length; i++) {
+          values[i] = selections.get(ruleOrder.get(i).getName());
+        }
+        permutations.add(new Permutation(this, cacheHtml, values));
+      }
+    } finally {
+      in.close();
+    }
+  }
+
+  private Rule get(final String name) {
+    Rule r = rulesByName.get(name);
+    if (r == null) {
+      r = new ClientSideRule(name);
+      register(r);
+    }
+    return r;
+  }
+
+  /** @return name of the module (within the application context). */
+  public String getModuleName() {
+    return moduleName;
+  }
+
+  /** @return all possible permutations */
+  public List<Permutation> getPermutations() {
+    return Collections.unmodifiableList(permutations);
+  }
+
+  /**
+   * Select the permutation that best matches the browser request.
+   *
+   * @param req current request.
+   * @return the selected permutation; null if no permutation can be fit to the
+   *         request and the standard {@code nocache.js} loader must be used.
+   */
+  public Permutation select(HttpServletRequest req) {
+    final String[] values = new String[ruleOrder.size()];
+    for (int i = 0; i < values.length; i++) {
+      final String value = ruleOrder.get(i).select(req);
+      if (value == null) {
+        // If the rule returned null it doesn't know how to compute
+        // the value for this HTTP request. Since we can't do that
+        // defer to JavaScript by not picking a permutation.
+        //
+        return null;
+      }
+      values[i] = value;
+    }
+
+    for (Permutation p : permutations) {
+      if (p.matches(values)) {
+        return p;
+      }
+    }
+
+    return null;
+  }
+
+  Collection<String> getCSS() {
+    return css;
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/linker/server/Rule.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/linker/server/Rule.java
new file mode 100644
index 0000000000..76b9b5165a
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/linker/server/Rule.java
@@ -0,0 +1,40 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.linker.server;
+
+import javax.servlet.http.HttpServletRequest;
+
+/** A selection rule for a permutation property. */
+public interface Rule {
+  /** @return the property name, for example {@code "user.agent"}. */
+  public String getName();
+
+  /**
+   * Compute the value for this property, given the current request.
+   * <p>
+   * This rule method must compute the proper permutation value, matching what
+   * the GWT module XML files use for this property. The rule may use any state
+   * available in the current servlet request.
+   * <p>
+   * If this method returns {@code null} server side selection will be aborted
+   * and selection for all properties will be handled on the client side by the
+   * {@code nocache.js} file.
+   *
+   * @param req the request
+   * @return the value for the property; null if the value cannot be determined
+   *         on the server side.
+   */
+  public String select(HttpServletRequest req);
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/linker/server/UserAgentRule.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/linker/server/UserAgentRule.java
new file mode 100644
index 0000000000..366b6c57a3
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/linker/server/UserAgentRule.java
@@ -0,0 +1,93 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.linker.server;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import static java.util.regex.Pattern.compile;
+
+import javax.servlet.http.HttpServletRequest;
+
+/**
+ * Selects the value for the {@code user.agent} property.
+ * <p>
+ * Examines the {@code User-Agent} HTTP request header, and tries to match it to
+ * known {@code user.agent} values.
+ * <p>
+ * Ported from JavaScript in {@code com.google.gwt.user.UserAgent.gwt.xml}.
+ */
+public class UserAgentRule implements Rule {
+  private static final Pattern msie = compile(".*msie ([0-9]+)\\.([0-9]+).*");
+  private static final Pattern gecko = compile(".*rv:([0-9]+)\\.([0-9]+).*");
+
+  public String getName() {
+    return "user.agent";
+  }
+
+  @Override
+  public String select(HttpServletRequest req) {
+    String ua = req.getHeader("User-Agent");
+    if (ua == null) {
+      return null;
+    }
+
+    ua = ua.toLowerCase();
+
+    if (ua.indexOf("opera") != -1) {
+      return "opera";
+
+    } else if (ua.indexOf("webkit") != -1) {
+      return "safari";
+
+    } else if (ua.indexOf("msie") != -1) {
+      // GWT 2.0 uses document.documentMode here, which we can't do
+      // on the server side.
+
+      Matcher m = msie.matcher(ua);
+      if (m.matches() && m.groupCount() == 2) {
+        int v = makeVersion(m);
+        if (v >= 10000) {
+          return "ie10";
+        }
+        if (v >= 9000) {
+          return "ie9";
+        }
+        if (v >= 8000) {
+          return "ie8";
+        }
+        if (v >= 6000) {
+          return "ie6";
+        }
+      }
+      return null;
+
+    } else if (ua.indexOf("gecko") != -1) {
+      Matcher m = gecko.matcher(ua);
+      if (m.matches() && m.groupCount() == 2) {
+        if (makeVersion(m) >= 1008) {
+          return "gecko1_8";
+        }
+      }
+      return "gecko";
+    }
+
+    return null;
+  }
+
+  private int makeVersion(Matcher result) {
+    return (Integer.parseInt(result.group(1)) * 1000)
+        + Integer.parseInt(result.group(2));
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/progress/Progress.gwt.xml b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/progress/Progress.gwt.xml
new file mode 100644
index 0000000000..0df89283a3
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/progress/Progress.gwt.xml
@@ -0,0 +1,19 @@
+<!--
+ Copyright (C) 2009 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<module>
+  <inherits name='com.google.gwt.resources.Resources'/>
+  <inherits name="com.google.gwt.user.User"/>
+</module>
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/progress/client/ProgressBar.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/progress/client/ProgressBar.java
new file mode 100644
index 0000000000..5e13f55b76
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/progress/client/ProgressBar.java
@@ -0,0 +1,77 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.progress.client;
+
+import com.google.gwt.user.client.ui.Composite;
+import com.google.gwt.user.client.ui.FlowPanel;
+import com.google.gwt.user.client.ui.Label;
+
+/**
+ * A simple progress bar with a text label.
+ * <p>
+ * The bar is 200 pixels wide and 20 pixels high. To keep the implementation
+ * simple and lightweight this dimensions are fixed and shouldn't be modified by
+ * style overrides in client code or CSS.
+ */
+public class ProgressBar extends Composite {
+  static {
+    ProgressResources.I.css().ensureInjected();
+  }
+
+  private final String callerText;
+  private final Label bar;
+  private final Label msg;
+  private int value;
+
+  /** Create a bar with no message text. */
+  public ProgressBar() {
+    this("");
+  }
+
+  /** Create a bar displaying the specified message. */
+  public ProgressBar(final String text) {
+    if (text == null || text.length() == 0) {
+      callerText = "";
+    } else {
+      callerText = text + " ";
+    }
+
+    final FlowPanel body = new FlowPanel();
+    body.setStyleName(ProgressResources.I.css().container());
+
+    msg = new Label(callerText);
+    msg.setStyleName(ProgressResources.I.css().text());
+    body.add(msg);
+
+    bar = new Label("");
+    bar.setStyleName(ProgressResources.I.css().bar());
+    body.add(bar);
+
+    initWidget(body);
+  }
+
+  /** @return the current value of the progress meter. */
+  public int getValue() {
+    return value;
+  }
+
+  /** Update the bar's percent completion. */
+  public void setValue(final int pComplete) {
+    assert 0 <= pComplete && pComplete <= 100;
+    value = pComplete;
+    bar.setWidth("" + (2 * pComplete) + "px");
+    msg.setText(callerText + pComplete + "%");
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/progress/client/ProgressCss.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/progress/client/ProgressCss.java
new file mode 100644
index 0000000000..9de2748f90
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/progress/client/ProgressCss.java
@@ -0,0 +1,23 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.progress.client;
+
+import com.google.gwt.resources.client.CssResource;
+
+public interface ProgressCss extends CssResource {
+  String container();
+  String text();
+  String bar();
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/progress/client/ProgressResources.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/progress/client/ProgressResources.java
new file mode 100644
index 0000000000..0276e9a608
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/progress/client/ProgressResources.java
@@ -0,0 +1,25 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.progress.client;
+
+import com.google.gwt.core.client.GWT;
+import com.google.gwt.resources.client.ClientBundle;
+
+public interface ProgressResources extends ClientBundle {
+  public static final ProgressResources I = GWT.create(ProgressResources.class);
+
+  @Source("progress.css")
+  ProgressCss css();
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/progress/client/progress.css b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/progress/client/progress.css
new file mode 100644
index 0000000000..683396e6a1
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/progress/client/progress.css
@@ -0,0 +1,43 @@
+/* Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+.container {
+  position: relative;
+  border: 1px solid #6B90DA;
+  height: 20px;
+  width: 200px;
+}
+
+.text {
+  position: absolute;
+  bottom: 0;
+  left: 0;
+  z-index: 2;
+  width: 200px;
+  padding-bottom: 3px;
+  text-align: center;
+  font-weight: bold;
+  font-style: italic;
+  font-size: smaller;
+}
+
+.bar {
+  background: #F0F7F9;
+  border-right: 1px solid #D0D7D9;
+  position: absolute;
+  top: 0;
+  left: 0;
+  height: 20px;
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/SafeHtml.gwt.xml b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/SafeHtml.gwt.xml
new file mode 100644
index 0000000000..0df89283a3
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/SafeHtml.gwt.xml
@@ -0,0 +1,19 @@
+<!--
+ Copyright (C) 2009 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<module>
+  <inherits name='com.google.gwt.resources.Resources'/>
+  <inherits name="com.google.gwt.user.User"/>
+</module>
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/AttMap.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/AttMap.java
new file mode 100644
index 0000000000..46d7f51ead
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/AttMap.java
@@ -0,0 +1,137 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.safehtml.client;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+
+/** Lightweight map of names/values for element attribute construction. */
+class AttMap {
+  private static final Tag ANY = new AnyTag();
+  private static final HashMap<String, Tag> TAGS;
+  static {
+    final Tag src = new SrcTag();
+    TAGS = new HashMap<String, Tag>();
+    TAGS.put("a", new AnchorTag());
+    TAGS.put("form", new FormTag());
+    TAGS.put("img", src);
+    TAGS.put("script", src);
+    TAGS.put("frame", src);
+  }
+
+  private final ArrayList<String> names = new ArrayList<String>();
+  private final ArrayList<String> values = new ArrayList<String>();
+
+  private Tag tag = ANY;
+  private int live;
+
+  void reset(final String tagName) {
+    tag = TAGS.get(tagName.toLowerCase());
+    if (tag == null) {
+      tag = ANY;
+    }
+    live = 0;
+  }
+
+  void onto(final Buffer raw, final SafeHtmlBuilder esc) {
+    for (int i = 0; i < live; i++) {
+      final String v = values.get(i);
+      if (v.length() > 0) {
+        raw.append(" ");
+        raw.append(names.get(i));
+        raw.append("=\"");
+        esc.append(v);
+        raw.append("\"");
+      }
+    }
+  }
+
+  String get(String name) {
+    name = name.toLowerCase();
+
+    for (int i = 0; i < live; i++) {
+      if (name.equals(names.get(i))) {
+        return values.get(i);
+      }
+    }
+    return "";
+  }
+
+  void set(String name, final String value) {
+    name = name.toLowerCase();
+    tag.assertSafe(name, value);
+
+    for (int i = 0; i < live; i++) {
+      if (name.equals(names.get(i))) {
+        values.set(i, value);
+        return;
+      }
+    }
+
+    final int i = live++;
+    if (names.size() < live) {
+      names.add(name);
+      values.add(value);
+    } else {
+      names.set(i, name);
+      values.set(i, value);
+    }
+  }
+
+  private static void assertNotJavascriptUrl(final String value) {
+    if (value.startsWith("#")) {
+      // common in GWT, and safe, so bypass further checks
+
+    } else if (value.trim().toLowerCase().startsWith("javascript:")) {
+      // possibly unsafe, we could have random user code here
+      // we can't tell if its safe or not so we refuse to accept
+      //
+      throw new RuntimeException("javascript unsafe in href: " + value);
+    }
+  }
+
+  private static interface Tag {
+    void assertSafe(String name, String value);
+  }
+
+  private static class AnyTag implements Tag {
+    public void assertSafe(String name, String value) {
+    }
+  }
+
+  private static class AnchorTag implements Tag {
+    public void assertSafe(String name, String value) {
+      if ("href".equals(name)) {
+        assertNotJavascriptUrl(value);
+      }
+    }
+  }
+
+  private static class FormTag implements Tag {
+    public void assertSafe(String name, String value) {
+      if ("action".equals(name)) {
+        assertNotJavascriptUrl(value);
+      }
+    }
+  }
+
+  private static class SrcTag implements Tag {
+    public void assertSafe(String name, String value) {
+      if ("src".equals(name)) {
+        assertNotJavascriptUrl(value);
+      }
+    }
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/Buffer.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/Buffer.java
new file mode 100644
index 0000000000..d79c580623
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/Buffer.java
@@ -0,0 +1,33 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.safehtml.client;
+
+interface Buffer {
+  void append(boolean v);
+
+  void append(char v);
+
+  void append(int v);
+
+  void append(long v);
+
+  void append(float v);
+
+  void append(double v);
+
+  void append(String v);
+
+  String toString();
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/BufferDirect.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/BufferDirect.java
new file mode 100644
index 0000000000..a1801ad038
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/BufferDirect.java
@@ -0,0 +1,56 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.safehtml.client;
+
+final class BufferDirect implements Buffer {
+  private final StringBuilder strbuf = new StringBuilder();
+
+  boolean isEmpty() {
+    return strbuf.length() == 0;
+  }
+
+  public void append(final boolean v) {
+    strbuf.append(v);
+  }
+
+  public void append(final char v) {
+    strbuf.append(v);
+  }
+
+  public void append(final int v) {
+    strbuf.append(v);
+  }
+
+  public void append(final long v) {
+    strbuf.append(v);
+  }
+
+  public void append(final float v) {
+    strbuf.append(v);
+  }
+
+  public void append(final double v) {
+    strbuf.append(v);
+  }
+
+  public void append(final String v) {
+    strbuf.append(v);
+  }
+
+  @Override
+  public String toString() {
+    return strbuf.toString();
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/BufferSealElement.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/BufferSealElement.java
new file mode 100644
index 0000000000..6b5346d8d2
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/BufferSealElement.java
@@ -0,0 +1,56 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.safehtml.client;
+
+final class BufferSealElement implements Buffer {
+  private final SafeHtmlBuilder shb;
+
+  BufferSealElement(final SafeHtmlBuilder safeHtmlBuilder) {
+    shb = safeHtmlBuilder;
+  }
+
+  public void append(final boolean v) {
+    shb.sealElement().append(v);
+  }
+
+  public void append(final char v) {
+    shb.sealElement().append(v);
+  }
+
+  public void append(final double v) {
+    shb.sealElement().append(v);
+  }
+
+  public void append(final float v) {
+    shb.sealElement().append(v);
+  }
+
+  public void append(final int v) {
+    shb.sealElement().append(v);
+  }
+
+  public void append(final long v) {
+    shb.sealElement().append(v);
+  }
+
+  public void append(final String v) {
+    shb.sealElement().append(v);
+  }
+
+  @Override
+  public String toString() {
+    return shb.sealElement().toString();
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/FindReplace.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/FindReplace.java
new file mode 100644
index 0000000000..f7bc907bf6
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/FindReplace.java
@@ -0,0 +1,40 @@
+// Copyright (C) 2013 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.safehtml.client;
+
+import com.google.gwt.regexp.shared.RegExp;
+
+/** A Find/Replace pair used against the {@link SafeHtml} block of text. */
+public interface FindReplace {
+  /**
+   * @return regular expression to match substrings with; should be treated as
+   *     immutable.
+   */
+  public RegExp pattern();
+
+  /**
+   * Find and replace a single instance of this pattern in an input.
+   * <p>
+   * <b>WARNING:</b> No XSS sanitization is done on the return value of this
+   * method, e.g. this value may be passed directly to
+   * {@link SafeHtml#replaceAll(String, String)}. Implementations must sanitize output
+   * appropriately.
+   *
+   * @param input input string.
+   * @return result of regular expression replacement.
+   * @throws IllegalArgumentException if the input could not be safely sanitized.
+   */
+  public String replace(String input);
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/HighlightSuggestOracle.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/HighlightSuggestOracle.java
new file mode 100644
index 0000000000..e2c576bce3
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/HighlightSuggestOracle.java
@@ -0,0 +1,96 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.safehtml.client;
+
+import com.google.gwt.user.client.ui.SuggestOracle;
+
+import java.util.ArrayList;
+
+/**
+ * A suggestion oracle that tries to highlight the matched text.
+ * <p>
+ * Suggestions supplied by the implementation of
+ * {@link #onRequestSuggestions(Request, Callback)} are modified to wrap all
+ * occurrences of the {@link SuggestOracle.Request#getQuery()} substring in HTML
+ * <code>&lt;strong&gt;</code> tags, so they can be emphasized to the user.
+ */
+public abstract class HighlightSuggestOracle extends SuggestOracle {
+  private static String escape(String ds) {
+    return new SafeHtmlBuilder().append(ds).asString();
+  }
+
+  @Override
+  public final boolean isDisplayStringHTML() {
+    return true;
+  }
+
+  @Override
+  public final void requestSuggestions(final Request request, final Callback cb) {
+    onRequestSuggestions(request, new Callback() {
+      public void onSuggestionsReady(final Request request,
+          final Response response) {
+        final String qpat = getQueryPattern(request.getQuery());
+        final boolean html = isHTML();
+        final ArrayList<Suggestion> r = new ArrayList<Suggestion>();
+        for (final Suggestion s : response.getSuggestions()) {
+          r.add(new BoldSuggestion(qpat, s, html));
+        }
+        cb.onSuggestionsReady(request, new Response(r));
+      }
+    });
+  }
+
+  protected String getQueryPattern(final String query) {
+    return "(" + escape(query) + ")";
+  }
+
+  /**
+   * @return true if {@link SuggestOracle.Suggestion#getDisplayString()} returns
+   *         HTML; false if the text must be escaped before evaluating in an
+   *         HTML like context.
+   */
+  protected boolean isHTML() {
+    return false;
+  }
+
+  /** Compute the suggestions and return them for display. */
+  protected abstract void onRequestSuggestions(Request request, Callback done);
+
+  private static class BoldSuggestion implements Suggestion {
+    private final Suggestion suggestion;
+    private final String displayString;
+
+    BoldSuggestion(final String qstr, final Suggestion s, final boolean html) {
+      suggestion = s;
+
+      String ds = s.getDisplayString();
+      if (!html) {
+        ds = escape(ds);
+      }
+      displayString = sgi(ds, qstr, "<strong>$1</strong>");
+    }
+
+    private static native String sgi(String inString, String pat, String newHtml)
+    /*-{ return inString.replace(RegExp(pat, 'gi'), newHtml); }-*/;
+
+    public String getDisplayString() {
+      return displayString;
+    }
+
+    public String getReplacementString() {
+      return suggestion.getReplacementString();
+    }
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/LinkFindReplace.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/LinkFindReplace.java
new file mode 100644
index 0000000000..eaa4f23030
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/LinkFindReplace.java
@@ -0,0 +1,84 @@
+// Copyright (C) 2013 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.safehtml.client;
+
+import com.google.gwt.regexp.shared.RegExp;
+
+/**
+ * A Find/Replace pair whose replacement string is a link.
+ * <p>
+ * It is safe to pass arbitrary user-provided links to this class. Links are
+ * sanitized as follows:
+ * <ul>
+ * <li>Only http(s) and mailto links are supported; any other scheme results in
+ * an {@link IllegalArgumentException} from {@link #replace(String)}.
+ * <li>Special characters in the link after regex replacement are escaped with
+ * {@link SafeHtmlBuilder}.</li>
+ * </ul>
+ */
+public class LinkFindReplace implements FindReplace {
+  public static boolean hasValidScheme(String link) {
+    int colon = link.indexOf(':');
+    if (colon < 0) {
+      return true;
+    }
+    String scheme = link.substring(0, colon);
+    return "http".equalsIgnoreCase(scheme)
+        || "https".equalsIgnoreCase(scheme)
+        || "mailto".equalsIgnoreCase(scheme);
+  }
+
+  private RegExp pat;
+  private String link;
+
+  protected LinkFindReplace() {
+  }
+
+  /**
+   * @param regex regular expression pattern to match substrings with.
+   * @param repl replacement link href. Capture groups within
+   *        <code>regex</code> can be referenced with <code>$<i>n</i></code>.
+   */
+  public LinkFindReplace(String find, String link) {
+    this.pat = RegExp.compile(find);
+    this.link = link;
+  }
+
+  @Override
+  public RegExp pattern() {
+    return pat;
+  }
+
+  @Override
+  public String replace(String input) {
+    String href = pat.replace(input, link);
+    if (!hasValidScheme(href)) {
+      throw new IllegalArgumentException(
+          "Invalid scheme (" + toString() + "): " + href);
+    }
+    String result = new SafeHtmlBuilder()
+        .openAnchor()
+        .setAttribute("href", href)
+        .append(SafeHtml.asis(input))
+        .closeAnchor()
+        .asString();
+    return result;
+  }
+
+  @Override
+  public String toString() {
+    return "find = " + pat.getSource() + ", link = " + link;
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/RawFindReplace.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/RawFindReplace.java
new file mode 100644
index 0000000000..d22fef6e76
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/RawFindReplace.java
@@ -0,0 +1,55 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.safehtml.client;
+
+import com.google.gwt.regexp.shared.RegExp;
+
+/**
+ * A Find/Replace pair whose replacement string is arbitrary HTML.
+ * <p>
+ * <b>WARNING:</b> This class is not safe used with user-provided patterns.
+ */
+public class RawFindReplace implements FindReplace {
+  private RegExp pat;
+  private String replace;
+
+  protected RawFindReplace() {
+  }
+
+  /**
+   * @param regex regular expression pattern to match substrings with.
+   * @param repl replacement expression. Capture groups within
+   *        <code>regex</code> can be referenced with <code>$<i>n</i></code>.
+   */
+  public RawFindReplace(String find, String replace) {
+    this.pat = RegExp.compile(find);
+    this.replace = replace;
+  }
+
+  @Override
+  public RegExp pattern() {
+    return pat;
+  }
+
+  @Override
+  public String replace(String input) {
+    return pat.replace(input, replace);
+  }
+
+  @Override
+  public String toString() {
+    return "find = " + pat.getSource() + ", replace = " + replace;
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/SafeHtml.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/SafeHtml.java
new file mode 100644
index 0000000000..0a9f7a2ed9
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/SafeHtml.java
@@ -0,0 +1,302 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.safehtml.client;
+
+import com.google.gwt.core.client.GWT;
+import com.google.gwt.regexp.shared.MatchResult;
+import com.google.gwt.regexp.shared.RegExp;
+import com.google.gwt.user.client.DOM;
+import com.google.gwt.user.client.Element;
+import com.google.gwt.user.client.ui.HTML;
+import com.google.gwt.user.client.ui.HTMLTable;
+import com.google.gwt.user.client.ui.HasHTML;
+import com.google.gwt.user.client.ui.InlineHTML;
+import com.google.gwt.user.client.ui.Widget;
+
+import java.util.Iterator;
+import java.util.List;
+
+/** Immutable string safely placed as HTML without further escaping. */
+public abstract class SafeHtml {
+  public static final SafeHtmlResources RESOURCES;
+
+  static {
+    if (GWT.isClient()) {
+      RESOURCES = GWT.create(SafeHtmlResources.class);
+      RESOURCES.css().ensureInjected();
+
+    } else {
+      RESOURCES = new SafeHtmlResources() {
+        @Override
+        public SafeHtmlCss css() {
+          return new SafeHtmlCss() {
+            public String wikiList() {
+              return "wikiList";
+            }
+
+            public String wikiPreFormat() {
+              return "wikiPreFormat";
+            }
+
+            public boolean ensureInjected() {
+              return false;
+            }
+
+            public String getName() {
+              return null;
+            }
+
+            public String getText() {
+              return null;
+            }
+          };
+        }
+      };
+    }
+  }
+
+  /** @return the existing HTML property of a widget. */
+  public static SafeHtml get(final HasHTML t) {
+    return new SafeHtmlString(t.getHTML());
+  }
+
+  /** @return the existing HTML text, wrapped in a safe buffer. */
+  public static SafeHtml asis(final String htmlText) {
+    return new SafeHtmlString(htmlText);
+  }
+
+  /** Set the HTML property of a widget. */
+  public static <T extends HasHTML> T set(final T e, final SafeHtml str) {
+    e.setHTML(str.asString());
+    return e;
+  }
+
+  /** @return the existing inner HTML of any element. */
+  public static SafeHtml get(final Element e) {
+    return new SafeHtmlString(DOM.getInnerHTML(e));
+  }
+
+  /** Set the inner HTML of any element. */
+  public static Element set(final Element e, final SafeHtml str) {
+    DOM.setInnerHTML(e, str.asString());
+    return e;
+  }
+
+  /** @return the existing inner HTML of a table cell. */
+  public static SafeHtml get(final HTMLTable t, final int row, final int col) {
+    return new SafeHtmlString(t.getHTML(row, col));
+  }
+
+  /** Set the inner HTML of a table cell. */
+  public static <T extends HTMLTable> T set(final T t, final int row,
+      final int col, final SafeHtml str) {
+    t.setHTML(row, col, str.asString());
+    return t;
+  }
+
+  /** Parse an HTML block and return the first (typically root) element. */
+  public static Element parse(final SafeHtml str) {
+    return DOM.getFirstChild(set(DOM.createDiv(), str));
+  }
+
+  /** Convert bare http:// and https:// URLs into &lt;a href&gt; tags. */
+  public SafeHtml linkify() {
+    final String part = "(?:" +
+    "[a-zA-Z0-9$_.+!*',%;:@=?#/~-]" +
+    "|&(?!lt;|gt;)" +
+    ")";
+    return replaceAll(
+        "(https?://" +
+          part + "{2,}" +
+          "(?:[(]" + part + "*" + "[)])*" +
+          part + "*" +
+        ")",
+        "<a href=\"$1\" target=\"_blank\">$1</a>");
+  }
+
+  /**
+   * Apply {@link #linkify()}, and "\n\n" to &lt;p&gt;.
+   * <p>
+   * Lines that start with whitespace are assumed to be preformatted, and are
+   * formatted by the {@link SafeHtmlCss#wikiPreFormat()} CSS class.
+   */
+  public SafeHtml wikify() {
+    final SafeHtmlBuilder r = new SafeHtmlBuilder();
+    for (final String p : linkify().asString().split("\n\n")) {
+      if (isPreFormat(p)) {
+        r.openElement("p");
+        for (final String line : p.split("\n")) {
+          r.openSpan();
+          r.setStyleName(RESOURCES.css().wikiPreFormat());
+          r.append(asis(line));
+          r.closeSpan();
+          r.br();
+        }
+        r.closeElement("p");
+
+      } else if (isList(p)) {
+        wikifyList(r, p);
+
+      } else {
+        r.openElement("p");
+        r.append(asis(p));
+        r.closeElement("p");
+      }
+    }
+    return r.toSafeHtml();
+  }
+
+  private void wikifyList(final SafeHtmlBuilder r, final String p) {
+    boolean in_ul = false;
+    boolean in_p = false;
+    for (String line : p.split("\n")) {
+      if (line.startsWith("-") || line.startsWith("*")) {
+        if (!in_ul) {
+          if (in_p) {
+            in_p = false;
+            r.closeElement("p");
+          }
+
+          in_ul = true;
+          r.openElement("ul");
+          r.setStyleName(RESOURCES.css().wikiList());
+        }
+        line = line.substring(1).trim();
+
+      } else if (!in_ul) {
+        if (!in_p) {
+          in_p = true;
+          r.openElement("p");
+        } else {
+          r.append(' ');
+        }
+        r.append(asis(line));
+        continue;
+      }
+
+      r.openElement("li");
+      r.append(asis(line));
+      r.closeElement("li");
+    }
+
+    if (in_ul) {
+      r.closeElement("ul");
+    } else if (in_p) {
+      r.closeElement("p");
+    }
+  }
+
+  private static boolean isPreFormat(final String p) {
+    return p.contains("\n ") || p.contains("\n\t") || p.startsWith(" ")
+        || p.startsWith("\t");
+  }
+
+  private static boolean isList(final String p) {
+    return p.contains("\n- ") || p.contains("\n* ") || p.startsWith("- ")
+        || p.startsWith("* ");
+  }
+
+  /**
+   * Replace first occurrence of <code>regex</code> with <code>repl</code> .
+   * <p>
+   * <b>WARNING:</b> This replacement is being performed against an otherwise
+   * safe HTML string. The caller must ensure that the replacement does not
+   * introduce cross-site scripting attack entry points.
+   *
+   * @param regex regular expression pattern to match the substring with.
+   * @param repl replacement expression. Capture groups within
+   *        <code>regex</code> can be referenced with <code>$<i>n</i></code>.
+   * @return a new string, after the replacement has been made.
+   */
+  public SafeHtml replaceFirst(final String regex, final String repl) {
+    return new SafeHtmlString(asString().replaceFirst(regex, repl));
+  }
+
+  /**
+   * Replace each occurrence of <code>regex</code> with <code>repl</code> .
+   * <p>
+   * <b>WARNING:</b> This replacement is being performed against an otherwise
+   * safe HTML string. The caller must ensure that the replacement does not
+   * introduce cross-site scripting attack entry points.
+   *
+   * @param regex regular expression pattern to match substrings with.
+   * @param repl replacement expression. Capture groups within
+   *        <code>regex</code> can be referenced with <code>$<i>n</i></code>.
+   * @return a new string, after the replacements have been made.
+   */
+  public SafeHtml replaceAll(final String regex, final String repl) {
+    return new SafeHtmlString(asString().replaceAll(regex, repl));
+  }
+
+  /**
+   * Replace all find/replace pairs in the list in a single pass.
+   *
+   * @param findReplaceList find/replace pairs to use.
+   * @return a new string, after the replacements have been made.
+   */
+  public <T> SafeHtml replaceAll(List<? extends FindReplace> findReplaceList) {
+    if (findReplaceList == null || findReplaceList.isEmpty()) {
+      return this;
+    }
+
+    StringBuilder pat = new StringBuilder();
+    Iterator<? extends FindReplace> it = findReplaceList.iterator();
+    while (it.hasNext()) {
+      FindReplace fr = it.next();
+      pat.append(fr.pattern().getSource());
+      if (it.hasNext()) {
+        pat.append('|');
+      }
+    }
+
+    StringBuilder result = new StringBuilder();
+    RegExp re = RegExp.compile(pat.toString(), "g");
+    String orig = asString();
+    int index = 0;
+    MatchResult mat;
+    while ((mat = re.exec(orig)) != null) {
+      String g = mat.getGroup(0);
+      // Re-run each candidate to find which one matched.
+      for (FindReplace fr : findReplaceList) {
+        if (fr.pattern().test(g)) {
+          try {
+            String repl = fr.replace(g);
+            result.append(orig.substring(index, mat.getIndex()));
+            result.append(repl);
+          } catch (IllegalArgumentException e) {
+            continue;
+          }
+          index = mat.getIndex() + g.length();
+          break;
+        }
+      }
+    }
+    result.append(orig.substring(index, orig.length()));
+    return asis(result.toString());
+  }
+
+  /** @return a GWT block display widget displaying this HTML. */
+  public Widget toBlockWidget() {
+    return new HTML(asString());
+  }
+
+  /** @return a GWT inline display widget displaying this HTML. */
+  public Widget toInlineWidget() {
+    return new InlineHTML(asString());
+  }
+
+  /** @return a clean HTML string safe for inclusion in any context. */
+  public abstract String asString();
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/SafeHtmlBuilder.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/SafeHtmlBuilder.java
new file mode 100644
index 0000000000..9fe3267e7b
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/SafeHtmlBuilder.java
@@ -0,0 +1,411 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.safehtml.client;
+
+import com.google.gwt.core.client.GWT;
+
+/**
+ * Safely constructs a {@link SafeHtml}, escaping user provided content.
+ */
+public class SafeHtmlBuilder extends SafeHtml {
+  private static final Impl impl;
+
+  static {
+    if (GWT.isClient()) {
+      impl = new ClientImpl();
+    } else {
+      impl = new ServerImpl();
+    }
+  }
+
+  private final BufferDirect dBuf;
+  private Buffer cb;
+
+  private BufferSealElement sBuf;
+  private AttMap att;
+
+  public SafeHtmlBuilder() {
+    cb = dBuf = new BufferDirect();
+  }
+
+  /** @return true if this builder has not had an append occur yet. */
+  public boolean isEmpty() {
+    return dBuf.isEmpty();
+  }
+
+  /** @return true if this builder has content appended into it. */
+  public boolean hasContent() {
+    return !isEmpty();
+  }
+
+  public SafeHtmlBuilder append(final boolean in) {
+    cb.append(in);
+    return this;
+  }
+
+  public SafeHtmlBuilder append(final char in) {
+    switch (in) {
+      case '&':
+        cb.append("&amp;");
+        break;
+
+      case '>':
+        cb.append("&gt;");
+        break;
+
+      case '<':
+        cb.append("&lt;");
+        break;
+
+      case '"':
+        cb.append("&quot;");
+        break;
+
+      case '\'':
+        cb.append("&#39;");
+        break;
+
+      default:
+        cb.append(in);
+        break;
+    }
+    return this;
+  }
+
+  public SafeHtmlBuilder append(final int in) {
+    cb.append(in);
+    return this;
+  }
+
+  public SafeHtmlBuilder append(final long in) {
+    cb.append(in);
+    return this;
+  }
+
+  public SafeHtmlBuilder append(final float in) {
+    cb.append(in);
+    return this;
+  }
+
+  public SafeHtmlBuilder append(final double in) {
+    cb.append(in);
+    return this;
+  }
+
+  /** Append already safe HTML as-is, avoiding double escaping. */
+  public SafeHtmlBuilder append(final SafeHtml in) {
+    if (in != null) {
+      cb.append(in.asString());
+    }
+    return this;
+  }
+
+  /** Append the string, escaping unsafe characters. */
+  public SafeHtmlBuilder append(final String in) {
+    if (in != null) {
+      impl.escapeStr(this, in);
+    }
+    return this;
+  }
+
+  /** Append the string, escaping unsafe characters. */
+  public SafeHtmlBuilder append(final StringBuilder in) {
+    if (in != null) {
+      append(in.toString());
+    }
+    return this;
+  }
+
+  /** Append the string, escaping unsafe characters. */
+  public SafeHtmlBuilder append(final StringBuffer in) {
+    if (in != null) {
+      append(in.toString());
+    }
+    return this;
+  }
+
+  /** Append the result of toString(), escaping unsafe characters. */
+  public SafeHtmlBuilder append(final Object in) {
+    if (in != null) {
+      append(in.toString());
+    }
+    return this;
+  }
+
+  /** Append the string, escaping unsafe characters. */
+  public SafeHtmlBuilder append(final CharSequence in) {
+    if (in != null) {
+      escapeCS(this, in);
+    }
+    return this;
+  }
+
+  /**
+   * Open an element, appending "<tagName>" to the buffer.
+   * <p>
+   * After the element is open the attributes may be manipulated until the next
+   * <code>append</code>, <code>openElement</code>, <code>closeSelf</code> or
+   * <code>closeElement</code> call.
+   *
+   * @param tagName name of the HTML element to open.
+   */
+  public SafeHtmlBuilder openElement(final String tagName) {
+    assert isElementName(tagName);
+    cb.append("<");
+    cb.append(tagName);
+    if (sBuf == null) {
+      att = new AttMap();
+      sBuf = new BufferSealElement(this);
+    }
+    att.reset(tagName);
+    cb = sBuf;
+    return this;
+  }
+
+  /**
+   * Get an attribute of the last opened element.
+   *
+   * @param name name of the attribute to read.
+   * @return the attribute value, as a string. The empty string if the attribute
+   *         has not been assigned a value. The returned string is the raw
+   *         (unescaped) value.
+   */
+  public String getAttribute(final String name) {
+    assert isAttributeName(name);
+    assert cb == sBuf;
+    return att.get(name);
+  }
+
+  /**
+   * Set an attribute of the last opened element.
+   *
+   * @param name name of the attribute to set.
+   * @param value value to assign; any existing value is replaced. The value is
+   *        escaped (if necessary) during the assignment.
+   */
+  public SafeHtmlBuilder setAttribute(final String name, final String value) {
+    assert isAttributeName(name);
+    assert cb == sBuf;
+    att.set(name, value != null ? value : "");
+    return this;
+  }
+
+  /**
+   * Set an attribute of the last opened element.
+   *
+   * @param name name of the attribute to set.
+   * @param value value to assign, any existing value is replaced.
+   */
+  public SafeHtmlBuilder setAttribute(final String name, final int value) {
+    return setAttribute(name, String.valueOf(value));
+  }
+
+  /**
+   * Append a new value into a whitespace delimited attribute.
+   * <p>
+   * If the attribute is not yet assigned, this method sets the attribute. If
+   * the attribute is already assigned, the new value is appended onto the end,
+   * after appending a single space to delimit the values.
+   *
+   * @param name name of the attribute to append onto.
+   * @param value additional value to append.
+   */
+  public SafeHtmlBuilder appendAttribute(final String name, String value) {
+    if (value != null && value.length() > 0) {
+      final String e = getAttribute(name);
+      return setAttribute(name, e.length() > 0 ? e + " " + value : value);
+    }
+    return this;
+  }
+
+  /** Set the height attribute of the current element. */
+  public SafeHtmlBuilder setHeight(final int height) {
+    return setAttribute("height", height);
+  }
+
+  /** Set the width attribute of the current element. */
+  public SafeHtmlBuilder setWidth(final int width) {
+    return setAttribute("width", width);
+  }
+
+  /** Set the CSS class name for this element. */
+  public SafeHtmlBuilder setStyleName(final String style) {
+    assert isCssName(style);
+    return setAttribute("class", style);
+  }
+
+  /**
+   * Add an additional CSS class name to this element.
+   *<p>
+   * If no CSS class name has been specified yet, this method initializes it to
+   * the single name.
+   */
+  public SafeHtmlBuilder addStyleName(final String style) {
+    assert isCssName(style);
+    return appendAttribute("class", style);
+  }
+
+  private void sealElement0() {
+    assert cb == sBuf;
+    cb = dBuf;
+    att.onto(cb, this);
+  }
+
+  Buffer sealElement() {
+    sealElement0();
+    cb.append(">");
+    return cb;
+  }
+
+  /** Close the current element with a self closing suffix ("/ &gt;"). */
+  public SafeHtmlBuilder closeSelf() {
+    sealElement0();
+    cb.append(" />");
+    return this;
+  }
+
+  /** Append a closing tag for the named element. */
+  public SafeHtmlBuilder closeElement(final String name) {
+    assert isElementName(name);
+    cb.append("</");
+    cb.append(name);
+    cb.append(">");
+    return this;
+  }
+
+  /** Append "&amp;nbsp;" - a non-breaking space, useful in empty table cells. */
+  public SafeHtmlBuilder nbsp() {
+    cb.append("&nbsp;");
+    return this;
+  }
+
+  /** Append "&lt;br /&gt;" - a line break with no attributes */
+  public SafeHtmlBuilder br() {
+    cb.append("<br />");
+    return this;
+  }
+
+  /** Append "&lt;tr&gt;"; attributes may be set if needed */
+  public SafeHtmlBuilder openTr() {
+    return openElement("tr");
+  }
+
+  /** Append "&lt;/tr&gt;" */
+  public SafeHtmlBuilder closeTr() {
+    return closeElement("tr");
+  }
+
+  /** Append "&lt;td&gt;"; attributes may be set if needed */
+  public SafeHtmlBuilder openTd() {
+    return openElement("td");
+  }
+
+  /** Append "&lt;/td&gt;" */
+  public SafeHtmlBuilder closeTd() {
+    return closeElement("td");
+  }
+
+  /** Append "&lt;div&gt;"; attributes may be set if needed */
+  public SafeHtmlBuilder openDiv() {
+    return openElement("div");
+  }
+
+  /** Append "&lt;/div&gt;" */
+  public SafeHtmlBuilder closeDiv() {
+    return closeElement("div");
+  }
+
+  /** Append "&lt;span&gt;"; attributes may be set if needed */
+  public SafeHtmlBuilder openSpan() {
+    return openElement("span");
+  }
+
+  /** Append "&lt;/span&gt;" */
+  public SafeHtmlBuilder closeSpan() {
+    return closeElement("span");
+  }
+
+  /** Append "&lt;a&gt;"; attributes may be set if needed */
+  public SafeHtmlBuilder openAnchor() {
+    return openElement("a");
+  }
+
+  /** Append "&lt;/a&gt;" */
+  public SafeHtmlBuilder closeAnchor() {
+    return closeElement("a");
+  }
+
+  /** Append "&lt;param name=... value=... /&gt;". */
+  public SafeHtmlBuilder paramElement(final String name, final String value) {
+    openElement("param");
+    setAttribute("name", name);
+    setAttribute("value", value);
+    return closeSelf();
+  }
+
+  /** @return an immutable {@link SafeHtml} representation of the buffer. */
+  public SafeHtml toSafeHtml() {
+    return new SafeHtmlString(asString());
+  }
+
+  @Override
+  public String asString() {
+    return cb.toString();
+  }
+
+  private static void escapeCS(final SafeHtmlBuilder b, final CharSequence in) {
+    for (int i = 0; i < in.length(); i++) {
+      b.append(in.charAt(i));
+    }
+  }
+
+  private static boolean isElementName(final String name) {
+    return name.matches("^[a-zA-Z][a-zA-Z0-9_-]*$");
+  }
+
+  private static boolean isAttributeName(final String name) {
+    return isElementName(name);
+  }
+
+  private static boolean isCssName(final String name) {
+    return isElementName(name);
+  }
+
+  private static abstract class Impl {
+    abstract void escapeStr(SafeHtmlBuilder b, String in);
+  }
+
+  private static class ServerImpl extends Impl {
+    @Override
+    void escapeStr(final SafeHtmlBuilder b, final String in) {
+      SafeHtmlBuilder.escapeCS(b, in);
+    }
+  }
+
+  private static class ClientImpl extends Impl {
+    @Override
+    void escapeStr(final SafeHtmlBuilder b, final String in) {
+      b.cb.append(escape(in));
+    }
+
+    private static native String escape(String src)
+    /*-{ return src.replace(/&/g,'&amp;')
+                   .replace(/>/g,'&gt;')
+                   .replace(/</g,'&lt;')
+                   .replace(/"/g,'&quot;')
+                   .replace(/'/g,'&#39;');
+     }-*/;
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/SafeHtmlCss.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/SafeHtmlCss.java
new file mode 100644
index 0000000000..f6836a088d
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/SafeHtmlCss.java
@@ -0,0 +1,22 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.safehtml.client;
+
+import com.google.gwt.resources.client.CssResource;
+
+public interface SafeHtmlCss extends CssResource {
+  String wikiPreFormat();
+  String wikiList();
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/SafeHtmlResources.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/SafeHtmlResources.java
new file mode 100644
index 0000000000..e3f5724d61
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/SafeHtmlResources.java
@@ -0,0 +1,22 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.safehtml.client;
+
+import com.google.gwt.resources.client.ClientBundle;
+
+public interface SafeHtmlResources extends ClientBundle {
+  @Source("safehtml.css")
+  SafeHtmlCss css();
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/SafeHtmlString.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/SafeHtmlString.java
new file mode 100644
index 0000000000..a229421d9b
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/SafeHtmlString.java
@@ -0,0 +1,28 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.safehtml.client;
+
+class SafeHtmlString extends SafeHtml {
+  private final String html;
+
+  SafeHtmlString(final String h) {
+    html = h;
+  }
+
+  @Override
+  public String asString() {
+    return html;
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/safehtml.css b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/safehtml.css
new file mode 100644
index 0000000000..fcad92c47a
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/safehtml/client/safehtml.css
@@ -0,0 +1,23 @@
+/* Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+.wikiPreFormat {
+  white-space: pre;
+  font-family: 'Lucida Console', 'Lucida Sans Typewriter', Monaco, monospace;
+  font-size: small;
+}
+
+.wikiList {
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/server/CacheControlFilter.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/server/CacheControlFilter.java
new file mode 100644
index 0000000000..c4d681f900
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/server/CacheControlFilter.java
@@ -0,0 +1,106 @@
+// Copyright (C) 2008 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.server;
+
+import java.io.IOException;
+import java.util.concurrent.TimeUnit;
+
+import javax.servlet.Filter;
+import javax.servlet.FilterChain;
+import javax.servlet.FilterConfig;
+import javax.servlet.ServletException;
+import javax.servlet.ServletRequest;
+import javax.servlet.ServletResponse;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+/**
+ * Forces GWT resources to cache for a very long time.
+ * <p>
+ * GWT compiled JavaScript and ImageBundles can be cached indefinitely by a
+ * browser and/or an edge proxy, as they never contain user-specific data and
+ * are named by a unique checksum. If their content is ever modified then the
+ * URL changes, so user agents would request a different resource. We force
+ * these resources to have very long expiration times.
+ * <p>
+ * To use, add the following block to your <code>web.xml</code>:
+ *
+ * <pre>
+ * &lt;filter&gt;
+ *     &lt;filter-name&gt;CacheControl&lt;/filter-name&gt;
+ *     &lt;filter-class&gt;com.google.gwtexpui.server.CacheControlFilter&lt;/filter-class&gt;
+ *   &lt;/filter&gt;
+ *   &lt;filter-mapping&gt;
+ *     &lt;filter-name&gt;CacheControl&lt;/filter-name&gt;
+ *     &lt;url-pattern&gt;/*&lt;/url-pattern&gt;
+ *   &lt;/filter-mapping&gt;
+ * </pre>
+ */
+public class CacheControlFilter implements Filter {
+  public void init(final FilterConfig config) {
+  }
+
+  public void destroy() {
+  }
+
+  public void doFilter(final ServletRequest sreq, final ServletResponse srsp,
+      final FilterChain chain) throws IOException, ServletException {
+    final HttpServletRequest req = (HttpServletRequest) sreq;
+    final HttpServletResponse rsp = (HttpServletResponse) srsp;
+    final String pathInfo = pathInfo(req);
+
+    if (cacheForever(pathInfo, req)) {
+      CacheHeaders.setCacheable(req, rsp, 365, TimeUnit.DAYS);
+    } else if (nocache(pathInfo)) {
+      CacheHeaders.setNotCacheable(rsp);
+    }
+
+    chain.doFilter(req, rsp);
+  }
+
+  private static boolean cacheForever(final String pathInfo,
+      final HttpServletRequest req) {
+    if (pathInfo.endsWith(".cache.html")) {
+      return true;
+    } else if (pathInfo.endsWith(".cache.gif")) {
+      return true;
+    } else if (pathInfo.endsWith(".cache.png")) {
+      return true;
+    } else if (pathInfo.endsWith(".cache.css")) {
+      return true;
+    } else if (pathInfo.endsWith(".cache.jar")) {
+      return true;
+    } else if (pathInfo.endsWith(".cache.swf")) {
+      return true;
+    } else if (pathInfo.endsWith(".nocache.js")) {
+      final String v = req.getParameter("content");
+      return v != null && v.length() > 20;
+    }
+    return false;
+  }
+
+  private static boolean nocache(final String pathInfo) {
+    if (pathInfo.endsWith(".nocache.js")) {
+      return true;
+    }
+    return false;
+  }
+
+  private static String pathInfo(final HttpServletRequest req) {
+    final String uri = req.getRequestURI();
+    final String ctx = req.getContextPath();
+    return uri.startsWith(ctx) ? uri.substring(ctx.length()) : uri;
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/server/CacheHeaders.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/server/CacheHeaders.java
new file mode 100644
index 0000000000..11409e8ff3
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/server/CacheHeaders.java
@@ -0,0 +1,118 @@
+// Copyright (C) 2013 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.server;
+
+import static java.util.concurrent.TimeUnit.DAYS;
+import static java.util.concurrent.TimeUnit.SECONDS;
+
+import java.util.concurrent.TimeUnit;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+/** Utilities to manage HTTP caching directives in responses. */
+public class CacheHeaders {
+  private static final long MAX_CACHE_DURATION = DAYS.toSeconds(365);
+
+  /**
+   * Do not cache the response, anywhere.
+   *
+   * @param res response being returned.
+   */
+  public static void setNotCacheable(HttpServletResponse res) {
+    String cc = "no-cache, no-store, max-age=0, must-revalidate";
+    res.setHeader("Cache-Control", cc);
+    res.setHeader("Pragma", "no-cache");
+    res.setHeader("Expires", "Fri, 01 Jan 1990 00:00:00 GMT");
+    res.setDateHeader("Date", System.currentTimeMillis());
+  }
+
+  /**
+   * Permit caching the response for up to the age specified.
+   * <p>
+   * If the request is on a secure connection (e.g. SSL) private caching is
+   * used. This allows the user-agent to cache the response, but requests
+   * intermediate proxies to not cache. This may offer better protection for
+   * Set-Cookie headers.
+   * <p>
+   * If the request is on plaintext (insecure), public caching is used. This may
+   * allow an intermediate proxy to cache the response, including any Set-Cookie
+   * header that may have also been included.
+   *
+   * @param req current request.
+   * @param res response being returned.
+   * @param age how long the response can be cached.
+   * @param unit time unit for age, usually {@link TimeUnit#SECONDS}.
+   */
+  public static void setCacheable(
+      HttpServletRequest req, HttpServletResponse res,
+      long age, TimeUnit unit) {
+    if (req.isSecure()) {
+      setCacheablePrivate(res, age, unit);
+    } else {
+      setCacheablePublic(res, age, unit);
+    }
+  }
+
+  /**
+   * Allow the response to be cached by proxies and user-agents.
+   * <p>
+   * If the response includes a Set-Cookie header the cookie may be cached by a
+   * proxy and returned to multiple browsers behind the same proxy. This is
+   * insecure for authenticated connections.
+   *
+   * @param res response being returned.
+   * @param age how long the response can be cached.
+   * @param unit time unit for age, usually {@link TimeUnit#SECONDS}.
+   */
+  public static void setCacheablePublic(HttpServletResponse res,
+      long age, TimeUnit unit) {
+    long now = System.currentTimeMillis();
+    long sec = maxAgeSeconds(age, unit);
+
+    res.setDateHeader("Expires", now + SECONDS.toMillis(sec));
+    res.setDateHeader("Date", now);
+    cache(res, "public", age, unit);
+  }
+
+  /**
+   * Allow the response to be cached only by the user-agent.
+   *
+   * @param res response being returned.
+   * @param age how long the response can be cached.
+   * @param unit time unit for age, usually {@link TimeUnit#SECONDS}.
+   */
+  public static void setCacheablePrivate(HttpServletResponse res,
+      long age, TimeUnit unit) {
+    long now = System.currentTimeMillis();
+    res.setDateHeader("Expires", now);
+    res.setDateHeader("Date", now);
+    cache(res, "private", age, unit);
+  }
+
+  private static void cache(HttpServletResponse res,
+      String type, long age, TimeUnit unit) {
+    res.setHeader("Cache-Control", String.format(
+        "%s, max-age=%d",
+        type, maxAgeSeconds(age, unit)));
+  }
+
+  private static long maxAgeSeconds(long age, TimeUnit unit) {
+    return Math.min(unit.toSeconds(age), MAX_CACHE_DURATION);
+  }
+
+  private CacheHeaders() {
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/user/User.gwt.xml b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/user/User.gwt.xml
new file mode 100644
index 0000000000..c681d893bf
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/user/User.gwt.xml
@@ -0,0 +1,27 @@
+<!--
+ Copyright (C) 2009 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<module>
+  <inherits name="com.google.gwt.user.User"/>
+
+  <replace-with class="com.google.gwtexpui.user.client.PluginSafeDialogBoxImplAutoHide">
+    <when-type-is class="com.google.gwtexpui.user.client.PluginSafeDialogBoxImpl" />
+    <any>
+      <when-property-is name="user.agent" value="safari"/>
+      <when-property-is name="user.agent" value="gecko"/>
+      <when-property-is name="user.agent" value="gecko1_8"/>
+    </any>
+  </replace-with>
+</module>
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/user/client/AutoCenterDialogBox.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/user/client/AutoCenterDialogBox.java
new file mode 100644
index 0000000000..78ea8d607e
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/user/client/AutoCenterDialogBox.java
@@ -0,0 +1,76 @@
+// Copyright (C) 2008 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.user.client;
+
+import com.google.gwt.event.logical.shared.ResizeEvent;
+import com.google.gwt.event.logical.shared.ResizeHandler;
+import com.google.gwt.event.shared.HandlerRegistration;
+import com.google.gwt.user.client.Window;
+
+/** A DialogBox that automatically re-centers itself if the window changes */
+public class AutoCenterDialogBox extends PluginSafeDialogBox {
+  private HandlerRegistration recenter;
+
+  public AutoCenterDialogBox() {
+    this(false);
+  }
+
+  public AutoCenterDialogBox(final boolean autoHide) {
+    this(autoHide, true);
+  }
+
+  public AutoCenterDialogBox(final boolean autoHide, final boolean modal) {
+    super(autoHide, modal);
+  }
+
+  @Override
+  public void show() {
+    if (recenter == null) {
+      recenter = Window.addResizeHandler(new ResizeHandler() {
+        @Override
+        public void onResize(final ResizeEvent event) {
+          final int w = event.getWidth();
+          final int h = event.getHeight();
+          AutoCenterDialogBox.this.onResize(w, h);
+        }
+      });
+    }
+    super.show();
+  }
+
+  @Override
+  protected void onUnload() {
+    if (recenter != null) {
+      recenter.removeHandler();
+      recenter = null;
+    }
+    super.onUnload();
+  }
+
+  /**
+   * Invoked when the outer browser window resizes.
+   * <p>
+   * Subclasses may override (but should ensure they still call super.onResize)
+   * to implement custom logic when a window resize occurs.
+   *
+   * @param width new browser window width
+   * @param height new browser window height
+   */
+  protected void onResize(final int width, final int height) {
+    if (isAttached()) {
+      center();
+    }
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/user/client/PluginSafeDialogBox.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/user/client/PluginSafeDialogBox.java
new file mode 100644
index 0000000000..c6ab09a151
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/user/client/PluginSafeDialogBox.java
@@ -0,0 +1,65 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.user.client;
+
+import com.google.gwt.core.client.GWT;
+import com.google.gwt.user.client.ui.DialogBox;
+
+/**
+ * A DialogBox that can appear over Flash movies and Java applets.
+ * <p>
+ * Some browsers have issues with placing a &lt;div&gt; (such as that used by
+ * the DialogBox implementation) over top of native UI such as that used by the
+ * Flash plugin. Often the native UI leaks over top of the &lt;div&gt;, which is
+ * not the desired behavior for a dialog box.
+ * <p>
+ * This implementation hides the native resources by setting their display
+ * property to 'none' when the dialog is shown, and restores them back to their
+ * prior setting when the dialog is hidden.
+ * */
+public class PluginSafeDialogBox extends DialogBox {
+  private final PluginSafeDialogBoxImpl impl =
+      GWT.create(PluginSafeDialogBoxImpl.class);
+
+  public PluginSafeDialogBox() {
+    this(false);
+  }
+
+  public PluginSafeDialogBox(final boolean autoHide) {
+    this(autoHide, true);
+  }
+
+  public PluginSafeDialogBox(final boolean autoHide, final boolean modal) {
+    super(autoHide, modal);
+  }
+
+  @Override
+  public void setVisible(final boolean show) {
+    impl.visible(show);
+    super.setVisible(show);
+  }
+
+  @Override
+  public void show() {
+    impl.visible(true);
+    super.show();
+  }
+
+  @Override
+  public void hide(final boolean autoClosed) {
+    impl.visible(false);
+    super.hide(autoClosed);
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/user/client/PluginSafeDialogBoxImpl.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/user/client/PluginSafeDialogBoxImpl.java
new file mode 100644
index 0000000000..a32fc99fde
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/user/client/PluginSafeDialogBoxImpl.java
@@ -0,0 +1,20 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.user.client;
+
+class PluginSafeDialogBoxImpl {
+  void visible(final boolean dialogVisible) {
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/user/client/PluginSafeDialogBoxImplAutoHide.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/user/client/PluginSafeDialogBoxImplAutoHide.java
new file mode 100644
index 0000000000..e32fe78daa
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/user/client/PluginSafeDialogBoxImplAutoHide.java
@@ -0,0 +1,86 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.user.client;
+
+import com.google.gwt.dom.client.Document;
+import com.google.gwt.dom.client.Element;
+import com.google.gwt.dom.client.NodeList;
+import com.google.gwt.user.client.ui.UIObject;
+
+import java.util.ArrayList;
+
+class PluginSafeDialogBoxImplAutoHide extends PluginSafeDialogBoxImpl {
+  private boolean hidden;
+  private ArrayList<HiddenElement> hiddenElements =
+      new ArrayList<HiddenElement>();
+
+  @Override
+  void visible(final boolean dialogVisible) {
+    if (dialogVisible) {
+      hideAll();
+    } else {
+      showAll();
+    }
+  }
+
+  private void hideAll() {
+    if (!hidden) {
+      hideSet(Document.get().getElementsByTagName("object"));
+      hideSet(Document.get().getElementsByTagName("embed"));
+      hideSet(Document.get().getElementsByTagName("applet"));
+      hidden = true;
+    }
+  }
+
+  private void hideSet(final NodeList<Element> all) {
+    for (int i = 0; i < all.getLength(); i++) {
+      final Element e = all.getItem(i);
+      if (UIObject.isVisible(e)) {
+        hiddenElements.add(new HiddenElement(e));
+      }
+    }
+  }
+
+  private void showAll() {
+    if (hidden) {
+      for (final HiddenElement e : hiddenElements) {
+        e.restore();
+      }
+      hiddenElements.clear();
+      hidden = false;
+    }
+  }
+
+  private static class HiddenElement {
+    private final Element element;
+    private final String visibility;
+
+    HiddenElement(final Element element) {
+      this.element = element;
+      this.visibility = getVisibility(element);
+      setVisibility(element, "hidden");
+    }
+
+    void restore() {
+      setVisibility(element, visibility);
+    }
+
+    private static native String getVisibility(Element elem)
+    /*-{ return elem.style.visibility; }-*/;
+
+    private static native void setVisibility(Element elem, String disp)
+    /*-{ elem.style.visibility = disp; }-*/;
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/user/client/PluginSafePopupPanel.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/user/client/PluginSafePopupPanel.java
new file mode 100644
index 0000000000..7d9c9fc6ac
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/user/client/PluginSafePopupPanel.java
@@ -0,0 +1,65 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.user.client;
+
+import com.google.gwt.core.client.GWT;
+import com.google.gwt.user.client.ui.PopupPanel;
+
+/**
+ * A PopupPanel that can appear over Flash movies and Java applets.
+ * <p>
+ * Some browsers have issues with placing a &lt;div&gt; (such as that used by
+ * the PopupPanel implementation) over top of native UI such as that used by the
+ * Flash plugin. Often the native UI leaks over top of the &lt;div&gt;, which is
+ * not the desired behavior for a dialog box.
+ * <p>
+ * This implementation hides the native resources by setting their display
+ * property to 'none' when the dialog is shown, and restores them back to their
+ * prior setting when the dialog is hidden.
+ * */
+public class PluginSafePopupPanel extends PopupPanel {
+  private final PluginSafeDialogBoxImpl impl =
+      GWT.create(PluginSafeDialogBoxImpl.class);
+
+  public PluginSafePopupPanel() {
+    this(false);
+  }
+
+  public PluginSafePopupPanel(final boolean autoHide) {
+    this(autoHide, true);
+  }
+
+  public PluginSafePopupPanel(final boolean autoHide, final boolean modal) {
+    super(autoHide, modal);
+  }
+
+  @Override
+  public void setVisible(final boolean show) {
+    impl.visible(show);
+    super.setVisible(show);
+  }
+
+  @Override
+  public void show() {
+    impl.visible(true);
+    super.show();
+  }
+
+  @Override
+  public void hide(final boolean autoClosed) {
+    impl.visible(false);
+    super.hide(autoClosed);
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/user/client/UserAgent.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/user/client/UserAgent.java
new file mode 100644
index 0000000000..02ba9aeac5
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/user/client/UserAgent.java
@@ -0,0 +1,81 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.user.client;
+
+import com.google.gwt.core.client.GWT;
+import com.google.gwt.user.client.Window;
+
+/**
+ * User agent feature tests we don't create permutations for.
+ * <p>
+ * Some features aren't worth creating full permutations in GWT for, as each new
+ * boolean permutation (only two settings) doubles the compile time required. If
+ * the setting only affects a couple of lines of JavaScript code, the slightly
+ * larger cache files for user agents that lack the functionality requested is
+ * trivial compared to the time developers lose building their application.
+ */
+public class UserAgent {
+  /** Does the browser have ShockwaveFlash plugin enabled? */
+  public static final boolean hasFlash = hasFlash();
+
+  private static native boolean hasFlash()
+  /*-{
+    if (navigator.plugins && navigator.plugins.length) {
+      if (navigator.plugins['Shockwave Flash'])     return true;
+      if (navigator.plugins['Shockwave Flash 2.0']) return true;
+
+    } else if (navigator.mimeTypes && navigator.mimeTypes.length) {
+      var mimeType = navigator.mimeTypes['application/x-shockwave-flash'];
+      if (mimeType && mimeType.enabledPlugin) return true;
+
+    } else {
+      try { new ActiveXObject('ShockwaveFlash.ShockwaveFlash.7'); return true; } catch (e) {}
+      try { new ActiveXObject('ShockwaveFlash.ShockwaveFlash.6'); return true; } catch (e) {}
+      try { new ActiveXObject('ShockwaveFlash.ShockwaveFlash');   return true; } catch (e) {}
+    }
+    return false;
+  }-*/;
+
+  /**
+   * Test for and disallow running this application in an &lt;iframe&gt;.
+   * <p>
+   * If the application is running within an iframe this method requests a
+   * browser generated redirect to pop the application out of the iframe into
+   * the top level window, and then aborts execution by throwing an exception.
+   * This is call should be placed early within the module's onLoad() method,
+   * before any real UI can be initialized that an attacking site could try to
+   * snip out and present in a confusing context.
+   * <p>
+   * If the break out works, execution will restart automatically in a proper
+   * top level window, where the script has full control over the display. If
+   * the break out fails, execution will abort and stop immediately, preventing
+   * UI widgets from being created, leaving the user with an empty frame.
+   */
+  public static void assertNotInIFrame() {
+    if (GWT.isScript() && amInsideIFrame()) {
+      bustOutOfIFrame(Window.Location.getHref());
+      throw new RuntimeException();
+    }
+  }
+
+  private static native boolean amInsideIFrame()
+  /*-{ return top.location != $wnd.location; }-*/;
+
+  private static native void bustOutOfIFrame(String newloc)
+  /*-{ top.location.href = newloc }-*/;
+
+  private UserAgent() {
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/user/client/View.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/user/client/View.java
new file mode 100644
index 0000000000..35ecb12a9d
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/user/client/View.java
@@ -0,0 +1,57 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.user.client;
+
+import com.google.gwt.user.client.ui.Composite;
+import com.google.gwt.user.client.ui.Widget;
+
+/**
+ * Widget to display within a {@link ViewSite}.
+ *<p>
+ * Implementations must override <code>protected void onLoad()</code> and
+ * arrange for {@link #display()} to be invoked once the DOM within the view is
+ * consistent for presentation to the user. Typically this means that the
+ * subclass can start RPCs within <code>onLoad()</code> and then invoke
+ * <code>display()</code> from within the AsyncCallback's
+ * <code>onSuccess(Object)</code> method.
+ */
+public abstract class View extends Composite {
+  ViewSite<? extends View> site;
+
+  @Override
+  protected void onUnload() {
+    site = null;
+    super.onUnload();
+  }
+
+  /** true if this is the current view of its parent view site */
+  public final boolean isCurrentView() {
+    Widget p = getParent();
+    while (p != null) {
+      if (p instanceof ViewSite<?>) {
+        return ((ViewSite<?>) p).getView() == this;
+      }
+      p = p.getParent();
+    }
+    return false;
+  }
+
+  /** Replace the current view in the parent ViewSite with this view. */
+  public final void display() {
+    if (site != null) {
+      site.swap(this);
+    }
+  }
+}
diff --git a/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/user/client/ViewSite.java b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/user/client/ViewSite.java
new file mode 100644
index 0000000000..30b8408ff8
--- /dev/null
+++ b/gerrit-gwtexpui/src/main/java/com/google/gwtexpui/user/client/ViewSite.java
@@ -0,0 +1,87 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.user.client;
+
+import com.google.gwt.user.client.ui.Composite;
+import com.google.gwt.user.client.ui.FlowPanel;
+import com.google.gwt.user.client.ui.SimplePanel;
+
+/**
+ * Hosts a single {@link View}.
+ * <p>
+ * View instances are attached inside of an invisible DOM node, permitting their
+ * <code>onLoad()</code> method to be invoked and to update the DOM prior to the
+ * elements being made visible in the UI.
+ * <p>
+ * Complaint View instances must invoke {@link View#display()} once the DOM is
+ * ready for presentation.
+ */
+public class ViewSite<V extends View> extends Composite {
+  private final FlowPanel main;
+  private SimplePanel current;
+  private SimplePanel next;
+
+  public ViewSite() {
+    main = new FlowPanel();
+    initWidget(main);
+  }
+
+  /** Get the current view; null if there is no view being displayed. */
+  @SuppressWarnings("unchecked")
+  public V getView() {
+    return current != null ? (V) current.getWidget() : null;
+  }
+
+  /**
+   * Set the next view to display.
+   * <p>
+   * The view will be attached to the DOM tree within a hidden container,
+   * permitting its <code>onLoad()</code> method to execute and update the DOM
+   * without the user seeing the result.
+   *
+   * @param view the next view to display.
+   */
+  public void setView(final V view) {
+    if (next != null) {
+      main.remove(next);
+    }
+    view.site = this;
+    next = new SimplePanel();
+    next.setVisible(false);
+    main.add(next);
+    next.add(view);
+  }
+
+  /**
+   * Invoked after the view becomes the current view and has been made visible.
+   *
+   * @param view the view being displayed.
+   */
+  protected void onShowView(final V view) {
+  }
+
+  @SuppressWarnings("unchecked")
+  final void swap(final View v) {
+    if (next != null && next.getWidget() == v) {
+      if (current != null) {
+        main.remove(current);
+      }
+      current = next;
+      next = null;
+      current.setVisible(true);
+      onShowView((V) v);
+    }
+  }
+}
diff --git a/gerrit-gwtexpui/src/test/java/com/google/gwtexpui/safehtml/client/LinkFindReplaceTest.java b/gerrit-gwtexpui/src/test/java/com/google/gwtexpui/safehtml/client/LinkFindReplaceTest.java
new file mode 100644
index 0000000000..97f816fda8
--- /dev/null
+++ b/gerrit-gwtexpui/src/test/java/com/google/gwtexpui/safehtml/client/LinkFindReplaceTest.java
@@ -0,0 +1,77 @@
+// Copyright (C) 2013 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.safehtml.client;
+
+import static com.google.gwtexpui.safehtml.client.LinkFindReplace.hasValidScheme;
+
+import junit.framework.TestCase;
+
+public class LinkFindReplaceTest extends TestCase {
+  public void testNoEscaping() {
+    String find = "find";
+    String link = "link";
+    LinkFindReplace a = new LinkFindReplace(find, link);
+    assertEquals(find, a.pattern().getSource());
+    assertEquals("<a href=\"link\">find</a>", a.replace(find));
+    assertEquals("find = " + find + ", link = " + link, a.toString());
+  }
+
+  public void testBackreference() {
+    assertEquals("<a href=\"/bug?id=123\">issue 123</a>",
+        new LinkFindReplace("(bug|issue)\\s*([0-9]+)", "/bug?id=$2")
+            .replace("issue 123"));
+  }
+
+  public void testHasValidScheme() {
+    assertTrue(hasValidScheme("/absolute/path"));
+    assertTrue(hasValidScheme("relative/path"));
+    assertTrue(hasValidScheme("http://url/"));
+    assertTrue(hasValidScheme("HTTP://url/"));
+    assertTrue(hasValidScheme("https://url/"));
+    assertTrue(hasValidScheme("mailto://url/"));
+    assertFalse(hasValidScheme("ftp://url/"));
+    assertFalse(hasValidScheme("data:evil"));
+    assertFalse(hasValidScheme("javascript:alert(1)"));
+  }
+
+  public void testInvalidSchemeInReplace() {
+    try {
+      new LinkFindReplace("find", "javascript:alert(1)").replace("find");
+      fail("Expected IllegalStateException");
+    } catch (IllegalArgumentException expected) {
+    }
+  }
+
+  public void testInvalidSchemeWithBackreference() {
+    try {
+      new LinkFindReplace(".*(script:[^;]*)", "java$1")
+          .replace("Look at this script: alert(1);");
+      fail("Expected IllegalStateException");
+    } catch (IllegalArgumentException expected) {
+    }
+  }
+
+  public void testReplaceEscaping() {
+    assertEquals("<a href=\"a&quot;&amp;&#39;&lt;&gt;b\">find</a>",
+        new LinkFindReplace("find", "a\"&'<>b").replace("find"));
+  }
+
+  public void testHtmlInFind() {
+    String rawFind = "<b>&quot;bold&quot;</b>";
+    LinkFindReplace a = new LinkFindReplace(rawFind, "/bold");
+    assertEquals(rawFind, a.pattern().getSource());
+    assertEquals("<a href=\"/bold\">" + rawFind + "</a>", a.replace(rawFind));
+  }
+}
diff --git a/gerrit-gwtexpui/src/test/java/com/google/gwtexpui/safehtml/client/RawFindReplaceTest.java b/gerrit-gwtexpui/src/test/java/com/google/gwtexpui/safehtml/client/RawFindReplaceTest.java
new file mode 100644
index 0000000000..9c450bd7a5
--- /dev/null
+++ b/gerrit-gwtexpui/src/test/java/com/google/gwtexpui/safehtml/client/RawFindReplaceTest.java
@@ -0,0 +1,28 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.safehtml.client;
+
+import junit.framework.TestCase;
+
+public class RawFindReplaceTest extends TestCase {
+  public void testFindReplace() {
+    final String find = "find";
+    final String replace = "replace";
+    final RawFindReplace a = new RawFindReplace(find, replace);
+    assertEquals(find, a.pattern().getSource());
+    assertEquals(replace, a.replace(find));
+    assertEquals("find = " + find + ", replace = " + replace, a.toString());
+  }
+}
diff --git a/gerrit-gwtexpui/src/test/java/com/google/gwtexpui/safehtml/client/SafeHtmlBuilderTest.java b/gerrit-gwtexpui/src/test/java/com/google/gwtexpui/safehtml/client/SafeHtmlBuilderTest.java
new file mode 100644
index 0000000000..a6b0012f20
--- /dev/null
+++ b/gerrit-gwtexpui/src/test/java/com/google/gwtexpui/safehtml/client/SafeHtmlBuilderTest.java
@@ -0,0 +1,265 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.safehtml.client;
+
+import junit.framework.TestCase;
+
+public class SafeHtmlBuilderTest extends TestCase {
+  public void testEmpty() {
+    final SafeHtmlBuilder b = new SafeHtmlBuilder();
+    assertTrue(b.isEmpty());
+    assertFalse(b.hasContent());
+    assertEquals("", b.asString());
+
+    b.append("a");
+    assertTrue(b.hasContent());
+    assertEquals("a", b.asString());
+  }
+
+  public void testToSafeHtml() {
+    final SafeHtmlBuilder b = new SafeHtmlBuilder();
+    b.append(1);
+
+    final SafeHtml h = b.toSafeHtml();
+    assertNotNull(h);
+    assertNotSame(h, b);
+    assertFalse(h instanceof SafeHtmlBuilder);
+    assertEquals("1", h.asString());
+  }
+
+  public void testAppend_boolean() {
+    final SafeHtmlBuilder b = new SafeHtmlBuilder();
+    assertSame(b, b.append(true));
+    assertSame(b, b.append(false));
+    assertEquals("truefalse", b.asString());
+  }
+
+  public void testAppend_char() {
+    final SafeHtmlBuilder b = new SafeHtmlBuilder();
+    assertSame(b, b.append('a'));
+    assertSame(b, b.append('b'));
+    assertEquals("ab", b.asString());
+  }
+
+  public void testAppend_int() {
+    final SafeHtmlBuilder b = new SafeHtmlBuilder();
+    assertSame(b, b.append(4));
+    assertSame(b, b.append(2));
+    assertSame(b, b.append(-100));
+    assertEquals("42-100", b.asString());
+  }
+
+  public void testAppend_long() {
+    final SafeHtmlBuilder b = new SafeHtmlBuilder();
+    assertSame(b, b.append(4L));
+    assertSame(b, b.append(2L));
+    assertEquals("42", b.asString());
+  }
+
+  public void testAppend_float() {
+    final SafeHtmlBuilder b = new SafeHtmlBuilder();
+    assertSame(b, b.append(0.0f));
+    assertEquals("0.0", b.asString());
+  }
+
+  public void testAppend_double() {
+    final SafeHtmlBuilder b = new SafeHtmlBuilder();
+    assertSame(b, b.append(0.0));
+    assertEquals("0.0", b.asString());
+  }
+
+  public void testAppend_String() {
+    final SafeHtmlBuilder b = new SafeHtmlBuilder();
+    assertSame(b, b.append((String) null));
+    assertEquals("", b.asString());
+    assertSame(b, b.append("foo"));
+    assertSame(b, b.append("bar"));
+    assertEquals("foobar", b.asString());
+  }
+
+  public void testAppend_StringBuilder() {
+    final SafeHtmlBuilder b = new SafeHtmlBuilder();
+    assertSame(b, b.append((StringBuilder) null));
+    assertEquals("", b.asString());
+    assertSame(b, b.append(new StringBuilder("foo")));
+    assertSame(b, b.append(new StringBuilder("bar")));
+    assertEquals("foobar", b.asString());
+  }
+
+  public void testAppend_StringBuffer() {
+    final SafeHtmlBuilder b = new SafeHtmlBuilder();
+    assertSame(b, b.append((StringBuffer) null));
+    assertEquals("", b.asString());
+    assertSame(b, b.append(new StringBuffer("foo")));
+    assertSame(b, b.append(new StringBuffer("bar")));
+    assertEquals("foobar", b.asString());
+  }
+
+  public void testAppend_Object() {
+    final SafeHtmlBuilder b = new SafeHtmlBuilder();
+    assertSame(b, b.append((Object) null));
+    assertEquals("", b.asString());
+    assertSame(b, b.append(new Object() {
+      @Override
+      public String toString() {
+        return "foobar";
+      }
+    }));
+    assertEquals("foobar", b.asString());
+  }
+
+  public void testAppend_CharSequence() {
+    final SafeHtmlBuilder b = new SafeHtmlBuilder();
+    assertSame(b, b.append((CharSequence) null));
+    assertEquals("", b.asString());
+    assertSame(b, b.append((CharSequence) "foo"));
+    assertSame(b, b.append((CharSequence) "bar"));
+    assertEquals("foobar", b.asString());
+  }
+
+  public void testAppend_SafeHtml() {
+    final SafeHtmlBuilder b = new SafeHtmlBuilder();
+    assertSame(b, b.append((SafeHtml) null));
+    assertEquals("", b.asString());
+    assertSame(b, b.append(new SafeHtmlString("foo")));
+    assertSame(b, b.append(new SafeHtmlBuilder().append("bar")));
+    assertEquals("foobar", b.asString());
+  }
+
+  public void testHtmlSpecialCharacters() {
+    assertEquals("&amp;", escape("&"));
+    assertEquals("&lt;", escape("<"));
+    assertEquals("&gt;", escape(">"));
+    assertEquals("&quot;", escape("\""));
+    assertEquals("&#39;", escape("'"));
+
+    assertEquals("&amp;", escape('&'));
+    assertEquals("&lt;", escape('<'));
+    assertEquals("&gt;", escape('>'));
+    assertEquals("&quot;", escape('"'));
+    assertEquals("&#39;", escape('\''));
+
+    assertEquals("&lt;b&gt;", escape("<b>"));
+    assertEquals("&amp;lt;b&amp;gt;", escape("&lt;b&gt;"));
+  }
+
+  public void testEntityNbsp() {
+    final SafeHtmlBuilder b = new SafeHtmlBuilder();
+    assertSame(b, b.nbsp());
+    assertEquals("&nbsp;", b.asString());
+  }
+
+  public void testTagBr() {
+    final SafeHtmlBuilder b = new SafeHtmlBuilder();
+    assertSame(b, b.br());
+    assertEquals("<br />", b.asString());
+  }
+
+  public void testTagTableTrTd() {
+    final SafeHtmlBuilder b = new SafeHtmlBuilder();
+    assertSame(b, b.openElement("table"));
+    assertSame(b, b.openTr());
+    assertSame(b, b.openTd());
+    assertSame(b, b.append("d<a>ta"));
+    assertSame(b, b.closeTd());
+    assertSame(b, b.closeTr());
+    assertSame(b, b.closeElement("table"));
+    assertEquals("<table><tr><td>d&lt;a&gt;ta</td></tr></table>", b.asString());
+  }
+
+  public void testTagDiv() {
+    final SafeHtmlBuilder b = new SafeHtmlBuilder();
+    assertSame(b, b.openDiv());
+    assertSame(b, b.append("d<a>ta"));
+    assertSame(b, b.closeDiv());
+    assertEquals("<div>d&lt;a&gt;ta</div>", b.asString());
+  }
+
+  public void testTagAnchor() {
+    final SafeHtmlBuilder b = new SafeHtmlBuilder();
+    assertSame(b, b.openAnchor());
+
+    assertEquals("", b.getAttribute("href"));
+    assertSame(b, b.setAttribute("href", "http://here"));
+    assertEquals("http://here", b.getAttribute("href"));
+    assertSame(b, b.setAttribute("href", "d<a>ta"));
+    assertEquals("d<a>ta", b.getAttribute("href"));
+
+    assertEquals("", b.getAttribute("target"));
+    assertSame(b, b.setAttribute("target", null));
+    assertEquals("", b.getAttribute("target"));
+
+    assertSame(b, b.append("go"));
+    assertSame(b, b.closeAnchor());
+    assertEquals("<a href=\"d&lt;a&gt;ta\">go</a>", b.asString());
+  }
+
+  public void testTagHeightWidth() {
+    final SafeHtmlBuilder b = new SafeHtmlBuilder();
+    assertSame(b, b.openElement("img"));
+    assertSame(b, b.setHeight(100));
+    assertSame(b, b.setWidth(42));
+    assertSame(b, b.closeSelf());
+    assertEquals("<img height=\"100\" width=\"42\" />", b.asString());
+  }
+
+  public void testStyleName() {
+    final SafeHtmlBuilder b = new SafeHtmlBuilder();
+    assertSame(b, b.openSpan());
+    assertSame(b, b.setStyleName("foo"));
+    assertSame(b, b.addStyleName("bar"));
+    assertSame(b, b.append("d<a>ta"));
+    assertSame(b, b.closeSpan());
+    assertEquals("<span class=\"foo bar\">d&lt;a&gt;ta</span>", b.asString());
+  }
+
+  public void testRejectJavaScript_AnchorHref() {
+    final String href = "javascript:window.close();";
+    try {
+      new SafeHtmlBuilder().openAnchor().setAttribute("href", href);
+      fail("accepted javascript in a href");
+    } catch (RuntimeException e) {
+      assertEquals("javascript unsafe in href: " + href, e.getMessage());
+    }
+  }
+
+  public void testRejectJavaScript_ImgSrc() {
+    final String href = "javascript:window.close();";
+    try {
+      new SafeHtmlBuilder().openElement("img").setAttribute("src", href);
+      fail("accepted javascript in img src");
+    } catch (RuntimeException e) {
+      assertEquals("javascript unsafe in href: " + href, e.getMessage());
+    }
+  }
+
+  public void testRejectJavaScript_FormAction() {
+    final String href = "javascript:window.close();";
+    try {
+      new SafeHtmlBuilder().openElement("form").setAttribute("action", href);
+      fail("accepted javascript in form action");
+    } catch (RuntimeException e) {
+      assertEquals("javascript unsafe in href: " + href, e.getMessage());
+    }
+  }
+
+  private static String escape(final char c) {
+    return new SafeHtmlBuilder().append(c).asString();
+  }
+
+  private static String escape(final String c) {
+    return new SafeHtmlBuilder().append(c).asString();
+  }
+}
diff --git a/gerrit-gwtexpui/src/test/java/com/google/gwtexpui/safehtml/client/SafeHtml_LinkifyTest.java b/gerrit-gwtexpui/src/test/java/com/google/gwtexpui/safehtml/client/SafeHtml_LinkifyTest.java
new file mode 100644
index 0000000000..a9d945072d
--- /dev/null
+++ b/gerrit-gwtexpui/src/test/java/com/google/gwtexpui/safehtml/client/SafeHtml_LinkifyTest.java
@@ -0,0 +1,58 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.safehtml.client;
+
+import junit.framework.TestCase;
+
+public class SafeHtml_LinkifyTest extends TestCase {
+  public void testLinkify_SimpleHttp1() {
+    final SafeHtml o = html("A http://go.here/ B");
+    final SafeHtml n = o.linkify();
+    assertNotSame(o, n);
+    assertEquals("A <a href=\"http://go.here/\" target=\"_blank\">http://go.here/</a> B", n.asString());
+  }
+
+  public void testLinkify_SimpleHttps2() {
+    final SafeHtml o = html("A https://go.here/ B");
+    final SafeHtml n = o.linkify();
+    assertNotSame(o, n);
+    assertEquals("A <a href=\"https://go.here/\" target=\"_blank\">https://go.here/</a> B", n.asString());
+  }
+
+  public void testLinkify_Parens1() {
+    final SafeHtml o = html("A (http://go.here/) B");
+    final SafeHtml n = o.linkify();
+    assertNotSame(o, n);
+    assertEquals("A (<a href=\"http://go.here/\" target=\"_blank\">http://go.here/</a>) B", n.asString());
+  }
+
+  public void testLinkify_Parens() {
+    final SafeHtml o = html("A http://go.here/#m() B");
+    final SafeHtml n = o.linkify();
+    assertNotSame(o, n);
+    assertEquals("A <a href=\"http://go.here/#m()\" target=\"_blank\">http://go.here/#m()</a> B", n.asString());
+  }
+
+  public void testLinkify_AngleBrackets1() {
+    final SafeHtml o = html("A <http://go.here/> B");
+    final SafeHtml n = o.linkify();
+    assertNotSame(o, n);
+    assertEquals("A &lt;<a href=\"http://go.here/\" target=\"_blank\">http://go.here/</a>&gt; B", n.asString());
+  }
+
+  private static SafeHtml html(String text) {
+    return new SafeHtmlBuilder().append(text).toSafeHtml();
+  }
+}
diff --git a/gerrit-gwtexpui/src/test/java/com/google/gwtexpui/safehtml/client/SafeHtml_ReplaceTest.java b/gerrit-gwtexpui/src/test/java/com/google/gwtexpui/safehtml/client/SafeHtml_ReplaceTest.java
new file mode 100644
index 0000000000..d7a3aaf278
--- /dev/null
+++ b/gerrit-gwtexpui/src/test/java/com/google/gwtexpui/safehtml/client/SafeHtml_ReplaceTest.java
@@ -0,0 +1,119 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.safehtml.client;
+
+import junit.framework.TestCase;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+public class SafeHtml_ReplaceTest extends TestCase {
+  public void testReplaceEmpty() {
+    SafeHtml o = html("A\nissue42\nB");
+    assertSame(o, o.replaceAll(null));
+    assertSame(o, o.replaceAll(Collections.<FindReplace> emptyList()));
+  }
+
+  public void testReplaceOneLink() {
+    SafeHtml o = html("A\nissue 42\nB");
+    SafeHtml n = o.replaceAll(repls(
+        new RawFindReplace("(issue\\s(\\d+))", "<a href=\"?$2\">$1</a>")));
+    assertNotSame(o, n);
+    assertEquals("A\n<a href=\"?42\">issue 42</a>\nB", n.asString());
+  }
+
+  public void testReplaceNoLeadingOrTrailingText() {
+    SafeHtml o = html("issue 42");
+    SafeHtml n = o.replaceAll(repls(
+        new RawFindReplace("(issue\\s(\\d+))", "<a href=\"?$2\">$1</a>")));
+    assertNotSame(o, n);
+    assertEquals("<a href=\"?42\">issue 42</a>", n.asString());
+  }
+
+  public void testReplaceTwoLinks() {
+    SafeHtml o = html("A\nissue 42\nissue 9918\nB");
+    SafeHtml n = o.replaceAll(repls(
+        new RawFindReplace("(issue\\s(\\d+))", "<a href=\"?$2\">$1</a>")));
+    assertNotSame(o, n);
+    assertEquals("A\n"
+        + "<a href=\"?42\">issue 42</a>\n"
+        + "<a href=\"?9918\">issue 9918</a>\n"
+        + "B"
+    , n.asString());
+  }
+
+  public void testReplaceInOrder() {
+    SafeHtml o = html("A\nissue 42\nReally GWTEXPUI-9918 is better\nB");
+    SafeHtml n = o.replaceAll(repls(
+        new RawFindReplace("(GWTEXPUI-(\\d+))",
+            "<a href=\"gwtexpui-bug?$2\">$1</a>"),
+        new RawFindReplace("(issue\\s+(\\d+))",
+            "<a href=\"generic-bug?$2\">$1</a>")));
+    assertNotSame(o, n);
+    assertEquals("A\n"
+        + "<a href=\"generic-bug?42\">issue 42</a>\n"
+        + "Really <a href=\"gwtexpui-bug?9918\">GWTEXPUI-9918</a> is better\n"
+        + "B"
+    , n.asString());
+  }
+
+  public void testReplaceOverlappingAfterFirstChar() {
+    SafeHtml o = html("abcd");
+    RawFindReplace ab = new RawFindReplace("ab", "AB");
+    RawFindReplace bc = new RawFindReplace("bc", "23");
+    RawFindReplace cd = new RawFindReplace("cd", "YZ");
+
+    assertEquals("ABcd", o.replaceAll(repls(ab, bc)).asString());
+    assertEquals("ABcd", o.replaceAll(repls(bc, ab)).asString());
+    assertEquals("ABYZ", o.replaceAll(repls(ab, bc, cd)).asString());
+  }
+
+  public void testReplaceOverlappingAtFirstCharLongestMatch() {
+    SafeHtml o = html("abcd");
+    RawFindReplace ab = new RawFindReplace("ab", "AB");
+    RawFindReplace abc = new RawFindReplace("[^d][^d][^d]", "234");
+
+    assertEquals("ABcd", o.replaceAll(repls(ab, abc)).asString());
+    assertEquals("234d", o.replaceAll(repls(abc, ab)).asString());
+  }
+
+  public void testReplaceOverlappingAtFirstCharFirstMatch() {
+    SafeHtml o = html("abcd");
+    RawFindReplace ab1 = new RawFindReplace("ab", "AB");
+    RawFindReplace ab2 = new RawFindReplace("[^cd][^cd]", "12");
+
+    assertEquals("ABcd", o.replaceAll(repls(ab1, ab2)).asString());
+    assertEquals("12cd", o.replaceAll(repls(ab2, ab1)).asString());
+  }
+
+  public void testFailedSanitization() {
+    SafeHtml o = html("abcd");
+    LinkFindReplace evil = new LinkFindReplace("(b)", "javascript:alert('$1')");
+    LinkFindReplace ok = new LinkFindReplace("(b)", "/$1");
+    assertEquals("abcd", o.replaceAll(repls(evil)).asString());
+    String linked = "a<a href=\"/b\">b</a>cd";
+    assertEquals(linked, o.replaceAll(repls(ok)).asString());
+    assertEquals(linked, o.replaceAll(repls(evil, ok)).asString());
+  }
+
+  private static SafeHtml html(String text) {
+    return new SafeHtmlBuilder().append(text).toSafeHtml();
+  }
+
+  private static List<FindReplace> repls(FindReplace... repls) {
+    return Arrays.asList(repls);
+  }
+}
diff --git a/gerrit-gwtexpui/src/test/java/com/google/gwtexpui/safehtml/client/SafeHtml_WikifyListTest.java b/gerrit-gwtexpui/src/test/java/com/google/gwtexpui/safehtml/client/SafeHtml_WikifyListTest.java
new file mode 100644
index 0000000000..250a1b52f8
--- /dev/null
+++ b/gerrit-gwtexpui/src/test/java/com/google/gwtexpui/safehtml/client/SafeHtml_WikifyListTest.java
@@ -0,0 +1,133 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "<p>AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.safehtml.client;
+
+import junit.framework.TestCase;
+
+public class SafeHtml_WikifyListTest extends TestCase {
+  private static final String BEGIN_LIST = "<ul class=\"wikiList\">";
+  private static final String END_LIST = "</ul>";
+
+  private static String item(String raw) {
+    return "<li>" + raw + "</li>";
+  }
+
+  public void testBulletList1() {
+    final SafeHtml o = html("A\n\n* line 1\n* 2nd line");
+    final SafeHtml n = o.wikify();
+    assertNotSame(o, n);
+    assertEquals("<p>A</p>"//
+        + BEGIN_LIST //
+        + item("line 1") //
+        + item("2nd line") //
+        + END_LIST //
+    , n.asString());
+  }
+
+  public void testBulletList2() {
+    final SafeHtml o = html("A\n\n* line 1\n* 2nd line\n\nB");
+    final SafeHtml n = o.wikify();
+    assertNotSame(o, n);
+    assertEquals("<p>A</p>"//
+        + BEGIN_LIST //
+        + item("line 1") //
+        + item("2nd line") //
+        + END_LIST //
+        + "<p>B</p>" //
+    , n.asString());
+  }
+
+  public void testBulletList3() {
+    final SafeHtml o = html("* line 1\n* 2nd line\n\nB");
+    final SafeHtml n = o.wikify();
+    assertNotSame(o, n);
+    assertEquals(BEGIN_LIST //
+        + item("line 1") //
+        + item("2nd line") //
+        + END_LIST //
+        + "<p>B</p>" //
+    , n.asString());
+  }
+
+  public void testBulletList4() {
+    final SafeHtml o = html("To see this bug, you have to:\n" //
+        + "* Be on IMAP or EAS (not on POP)\n"//
+        + "* Be very unlucky\n");
+    final SafeHtml n = o.wikify();
+    assertNotSame(o, n);
+    assertEquals("<p>To see this bug, you have to:</p>" //
+        + BEGIN_LIST //
+        + item("Be on IMAP or EAS (not on POP)") //
+        + item("Be very unlucky") //
+        + END_LIST //
+    , n.asString());
+  }
+
+  public void testBulletList5() {
+    final SafeHtml o = html("To see this bug,\n" //
+        + "you have to:\n" //
+        + "* Be on IMAP or EAS (not on POP)\n"//
+        + "* Be very unlucky\n");
+    final SafeHtml n = o.wikify();
+    assertNotSame(o, n);
+    assertEquals("<p>To see this bug, you have to:</p>" //
+        + BEGIN_LIST //
+        + item("Be on IMAP or EAS (not on POP)") //
+        + item("Be very unlucky") //
+        + END_LIST //
+    , n.asString());
+  }
+
+  public void testDashList1() {
+    final SafeHtml o = html("A\n\n- line 1\n- 2nd line");
+    final SafeHtml n = o.wikify();
+    assertNotSame(o, n);
+    assertEquals("<p>A</p>"//
+        + BEGIN_LIST //
+        + item("line 1") //
+        + item("2nd line") //
+        + END_LIST //
+    , n.asString());
+  }
+
+  public void testDashList2() {
+    final SafeHtml o = html("A\n\n- line 1\n- 2nd line\n\nB");
+    final SafeHtml n = o.wikify();
+    assertNotSame(o, n);
+    assertEquals("<p>A</p>"//
+        + BEGIN_LIST //
+        + item("line 1") //
+        + item("2nd line") //
+        + END_LIST //
+        + "<p>B</p>" //
+    , n.asString());
+  }
+
+  public void testDashList3() {
+    final SafeHtml o = html("- line 1\n- 2nd line\n\nB");
+    final SafeHtml n = o.wikify();
+    assertNotSame(o, n);
+    assertEquals(BEGIN_LIST //
+        + item("line 1") //
+        + item("2nd line") //
+        + END_LIST //
+        + "<p>B</p>" //
+    , n.asString());
+  }
+
+  private static SafeHtml html(String text) {
+    return new SafeHtmlBuilder().append(text).toSafeHtml();
+  }
+}
diff --git a/gerrit-gwtexpui/src/test/java/com/google/gwtexpui/safehtml/client/SafeHtml_WikifyPreformatTest.java b/gerrit-gwtexpui/src/test/java/com/google/gwtexpui/safehtml/client/SafeHtml_WikifyPreformatTest.java
new file mode 100644
index 0000000000..cbb315bb99
--- /dev/null
+++ b/gerrit-gwtexpui/src/test/java/com/google/gwtexpui/safehtml/client/SafeHtml_WikifyPreformatTest.java
@@ -0,0 +1,82 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "<p>AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.safehtml.client;
+
+import junit.framework.TestCase;
+
+public class SafeHtml_WikifyPreformatTest extends TestCase {
+  private static final String B = "<span class=\"wikiPreFormat\">";
+  private static final String E = "</span><br />";
+
+  private static String pre(String raw) {
+    return B + raw + E;
+  }
+
+  public void testPreformat1() {
+    final SafeHtml o = html("A\n\n  This is pre\n  formatted");
+    final SafeHtml n = o.wikify();
+    assertNotSame(o, n);
+    assertEquals("<p>A</p>"//
+        + "<p>" //
+        + pre("  This is pre") //
+        + pre("  formatted") //
+        + "</p>" //
+    , n.asString());
+  }
+
+  public void testPreformat2() {
+    final SafeHtml o = html("A\n\n  This is pre\n  formatted\n\nbut this is not");
+    final SafeHtml n = o.wikify();
+    assertNotSame(o, n);
+    assertEquals("<p>A</p>" //
+        + "<p>" //
+        + pre("  This is pre") //
+        + pre("  formatted") //
+        + "</p>" //
+        + "<p>but this is not</p>" //
+    , n.asString());
+  }
+
+  public void testPreformat3() {
+    final SafeHtml o = html("A\n\n  Q\n    <R>\n  S\n\nB");
+    final SafeHtml n = o.wikify();
+    assertNotSame(o, n);
+    assertEquals("<p>A</p>" //
+        + "<p>" //
+        + pre("  Q") //
+        + pre("    &lt;R&gt;") //
+        + pre("  S") //
+        + "</p>" //
+        + "<p>B</p>" //
+    , n.asString());
+  }
+
+  public void testPreformat4() {
+    final SafeHtml o = html("  Q\n    <R>\n  S\n\nB");
+    final SafeHtml n = o.wikify();
+    assertNotSame(o, n);
+    assertEquals("<p>" //
+        + pre("  Q") //
+        + pre("    &lt;R&gt;") //
+        + pre("  S") //
+        + "</p>" //
+        + "<p>B</p>" //
+    , n.asString());
+  }
+
+  private static SafeHtml html(String text) {
+    return new SafeHtmlBuilder().append(text).toSafeHtml();
+  }
+}
diff --git a/gerrit-gwtexpui/src/test/java/com/google/gwtexpui/safehtml/client/SafeHtml_WikifyTest.java b/gerrit-gwtexpui/src/test/java/com/google/gwtexpui/safehtml/client/SafeHtml_WikifyTest.java
new file mode 100644
index 0000000000..c983703740
--- /dev/null
+++ b/gerrit-gwtexpui/src/test/java/com/google/gwtexpui/safehtml/client/SafeHtml_WikifyTest.java
@@ -0,0 +1,93 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "<p>AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gwtexpui.safehtml.client;
+
+import junit.framework.TestCase;
+
+public class SafeHtml_WikifyTest extends TestCase {
+  public void testWikify_OneLine1() {
+    final SafeHtml o = html("A  B");
+    final SafeHtml n = o.wikify();
+    assertNotSame(o, n);
+    assertEquals("<p>A  B</p>", n.asString());
+  }
+
+  public void testWikify_OneLine2() {
+    final SafeHtml o = html("A  B\n");
+    final SafeHtml n = o.wikify();
+    assertNotSame(o, n);
+    assertEquals("<p>A  B\n</p>", n.asString());
+  }
+
+  public void testWikify_OneParagraph1() {
+    final SafeHtml o = html("A\nB");
+    final SafeHtml n = o.wikify();
+    assertNotSame(o, n);
+    assertEquals("<p>A\nB</p>", n.asString());
+  }
+
+  public void testWikify_OneParagraph2() {
+    final SafeHtml o = html("A\nB\n");
+    final SafeHtml n = o.wikify();
+    assertNotSame(o, n);
+    assertEquals("<p>A\nB\n</p>", n.asString());
+  }
+
+  public void testWikify_TwoParagraphs() {
+    final SafeHtml o = html("A\nB\n\nC\nD");
+    final SafeHtml n = o.wikify();
+    assertNotSame(o, n);
+    assertEquals("<p>A\nB</p><p>C\nD</p>", n.asString());
+  }
+
+  public void testLinkify_SimpleHttp1() {
+    final SafeHtml o = html("A http://go.here/ B");
+    final SafeHtml n = o.wikify();
+    assertNotSame(o, n);
+    assertEquals("<p>A <a href=\"http://go.here/\" target=\"_blank\">http://go.here/</a> B</p>", n.asString());
+  }
+
+  public void testLinkify_SimpleHttps2() {
+    final SafeHtml o = html("A https://go.here/ B");
+    final SafeHtml n = o.wikify();
+    assertNotSame(o, n);
+    assertEquals("<p>A <a href=\"https://go.here/\" target=\"_blank\">https://go.here/</a> B</p>", n.asString());
+  }
+
+  public void testLinkify_Parens1() {
+    final SafeHtml o = html("A (http://go.here/) B");
+    final SafeHtml n = o.wikify();
+    assertNotSame(o, n);
+    assertEquals("<p>A (<a href=\"http://go.here/\" target=\"_blank\">http://go.here/</a>) B</p>", n.asString());
+  }
+
+  public void testLinkify_Parens() {
+    final SafeHtml o = html("A http://go.here/#m() B");
+    final SafeHtml n = o.wikify();
+    assertNotSame(o, n);
+    assertEquals("<p>A <a href=\"http://go.here/#m()\" target=\"_blank\">http://go.here/#m()</a> B</p>", n.asString());
+  }
+
+  public void testLinkify_AngleBrackets1() {
+    final SafeHtml o = html("A <http://go.here/> B");
+    final SafeHtml n = o.wikify();
+    assertNotSame(o, n);
+    assertEquals("<p>A &lt;<a href=\"http://go.here/\" target=\"_blank\">http://go.here/</a>&gt; B</p>", n.asString());
+  }
+
+  private static SafeHtml html(String text) {
+    return new SafeHtmlBuilder().append(text).toSafeHtml();
+  }
+}