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diff --git a/src/main/java/com/google/gerrit/client/ui/DirectScreenLink.java b/src/main/java/com/google/gerrit/client/ui/DirectScreenLink.java
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+// Copyright 2008 Google Inc.
+//
+// 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.gerrit.client.ui;
+
+import com.google.gerrit.client.Gerrit;
+import com.google.gwt.user.client.DOM;
+import com.google.gwt.user.client.Event;
+import com.google.gwt.user.client.ui.Hyperlink;
+
+/**
+ * Link to a Screen which can carry richer payload.
+ * <p>
+ * A standard Hyperlink widget which updates the current history token when
+ * activated, but subclasses are able to create the Screen instance themselves,
+ * passing additional data into the Screen's constructor. This may permit the
+ * screen to show some limited information early, before RPCs required to fully
+ * populate it are even started.
+ */
+public abstract class DirectScreenLink extends Hyperlink {
+ /**
+ * Creates a link with its text and target history token specified.
+ *
+ * @param text the hyperlink's text
+ * @param historyToken the history token to which it will link
+ */
+ protected DirectScreenLink(final String text, final String historyToken) {
+ super(text, historyToken);
+ }
+
+ @Override
+ public void onBrowserEvent(final Event event) {
+ if (DOM.eventGetType(event) == Event.ONCLICK) {
+ onClick(event);
+ }
+ }
+
+ protected void onClick(final Event event) {
+ Gerrit.display(getTargetHistoryToken(), createScreen());
+ DOM.eventPreventDefault(event);
+ }
+
+ /** Create the screen this link wants to display. */
+ protected abstract Screen createScreen();
+}