More functionality for the generic highlighter options. Other small changes.

14 files changed, 166 insertions, 64 deletions

diff --git a/src/plugins/texteditor/generichighlighter/highlighter.h b/src/plugins/texteditor/generichighlighter/highlighter.h
index bbf7e769923..d544092185c 100644
--- a/src/plugins/texteditor/generichighlighter/highlighter.h
+++ b/src/plugins/texteditor/generichighlighter/highlighter.h
@@ -57,7 +57,7 @@ public:
     Highlighter(const QSharedPointer<Context> &defaultContext, QTextDocument *parent = 0);
     virtual ~Highlighter();
 
-    void configureFormats(const FontSettings & fs);
+    void configureFormats(const FontSettings &fs);
 
 protected:
     virtual void highlightBlock(const QString &text);
diff --git a/src/plugins/texteditor/generichighlighter/highlightersettings.cpp b/src/plugins/texteditor/generichighlighter/highlightersettings.cpp
index c453ebc18e6..e932a2ba5ac 100644
--- a/src/plugins/texteditor/generichighlighter/highlightersettings.cpp
+++ b/src/plugins/texteditor/generichighlighter/highlightersettings.cpp
@@ -33,9 +33,10 @@
 
 #include <QtCore/QSettings>
 #include <QtCore/QString>
+#include <QtCore/QStringList>
 #include <QtCore/QLatin1String>
 
-#ifdef Q_OS_LINUX
+#ifdef Q_OS_UNIX
 #include <QtCore/QDir>
 #include <QtCore/QProcess>
 #endif
@@ -43,18 +44,28 @@
 namespace TextEditor {
 namespace Internal {
 
-void applyDefaults(HighlighterSettings *settings)
+QString findDefinitionsLocation()
 {
-    settings->m_definitionFilesPath.clear();
+    QString definitionsLocation;
 
-#ifdef Q_OS_LINUX
+#ifdef Q_OS_UNIX
     static const QLatin1String kateSyntax("/share/apps/katepart/syntax");
 
-    // Wild guess.
-    QDir dir(QLatin1String("/usr") + kateSyntax);
-    if (dir.exists()) {
-        settings->m_definitionFilesPath = dir.path();
-    } else {
+    // Some wild guesses.
+    QDir dir;
+    QStringList paths;
+    paths << QLatin1String("/usr") + kateSyntax
+          << QLatin1String("/usr/local") + kateSyntax
+          << QLatin1String("/opt") + kateSyntax;
+    foreach (const QString &path, paths) {
+        dir.setPath(path);
+        if (dir.exists()) {
+            definitionsLocation = path;
+            break;
+        }
+    }
+
+    if (definitionsLocation.isEmpty()) {
         // Try kde-config.
         QProcess process;
         process.start(QLatin1String("kde-config"), QStringList(QLatin1String("--prefix")));
@@ -64,14 +75,16 @@ void applyDefaults(HighlighterSettings *settings)
             output.remove(QLatin1Char('\n'));
             dir.setPath(output + kateSyntax);
             if (dir.exists())
-                settings->m_definitionFilesPath = dir.path();
+                definitionsLocation = dir.path();
         }
     }
 #endif
 
-    if (settings->m_definitionFilesPath.isEmpty())
-        settings->m_definitionFilesPath = Core::ICore::instance()->resourcePath() +
-                                          QLatin1String("/generic-highlighter");
+    if (definitionsLocation.isEmpty())
+        definitionsLocation = Core::ICore::instance()->resourcePath() +
+                              QLatin1String("/generic-highlighter");
+
+    return definitionsLocation;
 }
 
 } // namespace Internal
@@ -80,6 +93,7 @@ void applyDefaults(HighlighterSettings *settings)
 namespace {
 
 static const QLatin1String kDefinitionFilesPath("DefinitionFilesPath");
+static const QLatin1String kAlertWhenDefinitionIsNotFound("AlertWhenDefinitionsIsNotFound");
 static const QLatin1String kGroupPostfix("HighlighterSettings");
 
 QString groupSpecifier(const QString &postFix, const QString &category)
@@ -94,7 +108,7 @@ QString groupSpecifier(const QString &postFix, const QString &category)
 using namespace TextEditor;
 using namespace Internal;
 
-HighlighterSettings::HighlighterSettings()
+HighlighterSettings::HighlighterSettings() : m_alertWhenNoDefinition(true)
 {}
 
 void HighlighterSettings::toSettings(const QString &category, QSettings *s) const
@@ -102,6 +116,7 @@ void HighlighterSettings::toSettings(const QString &category, QSettings *s) cons
     const QString &group = groupSpecifier(kGroupPostfix, category);
     s->beginGroup(group);
     s->setValue(kDefinitionFilesPath, m_definitionFilesPath);
+    s->setValue(kAlertWhenDefinitionIsNotFound, m_alertWhenNoDefinition);
     s->endGroup();
 }
 
@@ -109,16 +124,16 @@ void HighlighterSettings::fromSettings(const QString &category, QSettings *s)
 {
     const QString &group = groupSpecifier(kGroupPostfix, category);
     s->beginGroup(group);
-
     if (!s->contains(kDefinitionFilesPath))
-        applyDefaults(this);
+        m_definitionFilesPath = findDefinitionsLocation();
     else
         m_definitionFilesPath = s->value(kDefinitionFilesPath, QString()).toString();
-
+    m_alertWhenNoDefinition = s->value(kAlertWhenDefinitionIsNotFound, true).toBool();
     s->endGroup();
 }
 
 bool HighlighterSettings::equals(const HighlighterSettings &highlighterSettings) const
 {
-    return m_definitionFilesPath == highlighterSettings.m_definitionFilesPath;
+    return m_definitionFilesPath == highlighterSettings.m_definitionFilesPath &&
+           m_alertWhenNoDefinition == highlighterSettings.m_alertWhenNoDefinition;
 }
diff --git a/src/plugins/texteditor/generichighlighter/highlightersettings.h b/src/plugins/texteditor/generichighlighter/highlightersettings.h
index ba03719505a..5f90ea110ad 100644
--- a/src/plugins/texteditor/generichighlighter/highlightersettings.h
+++ b/src/plugins/texteditor/generichighlighter/highlightersettings.h
@@ -47,6 +47,7 @@ struct HighlighterSettings
 
     bool equals(const HighlighterSettings &highlighterSettings) const;
 
+    bool m_alertWhenNoDefinition;
     QString m_definitionFilesPath;
 };
 
@@ -57,7 +58,7 @@ inline bool operator!=(const HighlighterSettings &a, const HighlighterSettings &
 { return !a.equals(b); }
 
 namespace Internal {
-void applyDefaults(HighlighterSettings *settings);
+QString findDefinitionsLocation();
 }
 
 } // namespace TextEditor
diff --git a/src/plugins/texteditor/generichighlighter/highlightersettingspage.cpp b/src/plugins/texteditor/generichighlighter/highlightersettingspage.cpp
index b2d9e98b45d..39113b4b2c0 100644
--- a/src/plugins/texteditor/generichighlighter/highlightersettingspage.cpp
+++ b/src/plugins/texteditor/generichighlighter/highlightersettingspage.cpp
@@ -33,6 +33,7 @@
 #include "ui_highlightersettingspage.h"
 
 #include <coreplugin/icore.h>
+#include <coreplugin/coreconstants.h>
 
 using namespace TextEditor;
 using namespace Internal;
@@ -89,15 +90,19 @@ QWidget *HighlighterSettingsPage::createPage(QWidget *parent)
 {
     QWidget *w = new QWidget(parent);
     m_d->m_page.setupUi(w);
+    m_d->m_page.definitionFilesPath->setExpectedKind(Utils::PathChooser::Directory);
 
     settingsToUI();
 
     if (m_d->m_searchKeywords.isEmpty()) {
         QTextStream(&m_d->m_searchKeywords) << m_d->m_page.definitionFilesGroupBox->title()
-            << m_d->m_page.locationLabel->text();
+            << m_d->m_page.locationLabel->text()
+            << m_d->m_page.alertWhenNoDefinition->text();
     }
 
-    connect(m_d->m_page.resetButton, SIGNAL(clicked()), this, SLOT(reset()));
+    connect(m_d->m_page.resetButton, SIGNAL(clicked()), this, SLOT(resetDefinitionsLocation()));
+    connect(m_d->m_page.downloadNoteLabel, SIGNAL(linkActivated(QString)),
+            Manager::instance(), SLOT(openDefinitionsUrl(QString)));
 
     return w;
 }
@@ -125,6 +130,7 @@ void HighlighterSettingsPage::settingsFromUI()
         locationChanged = true;
 
     m_d->m_settings.m_definitionFilesPath = m_d->m_page.definitionFilesPath->path();
+    m_d->m_settings.m_alertWhenNoDefinition = m_d->m_page.alertWhenNoDefinition->isChecked();
     if (QSettings *s = Core::ICore::instance()->settings())
         m_d->m_settings.toSettings(m_d->m_settingsPrefix, s);
 
@@ -132,25 +138,22 @@ void HighlighterSettingsPage::settingsFromUI()
         emit definitionsLocationChanged();
 }
 
-void HighlighterSettingsPage::settingsToUI(const HighlighterSettings *settings)
+void HighlighterSettingsPage::settingsToUI()
 {
-    if (settings) {
-        m_d->m_page.definitionFilesPath->setPath(settings->m_definitionFilesPath);
-    } else {
-        m_d->m_page.definitionFilesPath->setPath(m_d->m_settings.m_definitionFilesPath);
-    }
+    m_d->m_page.definitionFilesPath->setPath(m_d->m_settings.m_definitionFilesPath);
+    m_d->m_page.alertWhenNoDefinition->setChecked(m_d->m_settings.m_alertWhenNoDefinition);
 }
 
-void HighlighterSettingsPage::reset()
+void HighlighterSettingsPage::resetDefinitionsLocation()
 {
-    HighlighterSettings defaultSettings;
-    applyDefaults(&defaultSettings);
-    settingsToUI(&defaultSettings);
+    m_d->m_page.definitionFilesPath->setPath(findDefinitionsLocation());
 }
 
 bool HighlighterSettingsPage::settingsChanged() const
 {    
     if (m_d->m_settings.m_definitionFilesPath != m_d->m_page.definitionFilesPath->path())
         return true;
+    if (m_d->m_settings.m_alertWhenNoDefinition != m_d->m_page.alertWhenNoDefinition->isChecked())
+        return true;
     return false;
 }
diff --git a/src/plugins/texteditor/generichighlighter/highlightersettingspage.h b/src/plugins/texteditor/generichighlighter/highlightersettingspage.h
index 62ed7532c82..5acf84cf112 100644
--- a/src/plugins/texteditor/generichighlighter/highlightersettingspage.h
+++ b/src/plugins/texteditor/generichighlighter/highlightersettingspage.h
@@ -57,11 +57,11 @@ signals:
     void definitionsLocationChanged();
 
 private slots:
-    void reset();
+    void resetDefinitionsLocation();
 
 private:
     void settingsFromUI();
-    void settingsToUI(const HighlighterSettings *settings = 0);
+    void settingsToUI();
 
     bool settingsChanged() const;
 
diff --git a/src/plugins/texteditor/generichighlighter/highlightersettingspage.ui b/src/plugins/texteditor/generichighlighter/highlightersettingspage.ui
index 5a475303d25..cfa51a1d92a 100644
--- a/src/plugins/texteditor/generichighlighter/highlightersettingspage.ui
+++ b/src/plugins/texteditor/generichighlighter/highlightersettingspage.ui
@@ -6,35 +6,57 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>453</width>
+    <width>521</width>
     <height>230</height>
    </rect>
   </property>
   <property name="windowTitle">
    <string>Form</string>
   </property>
-  <layout class="QVBoxLayout" name="verticalLayout">
+  <layout class="QVBoxLayout" name="verticalLayout_2">
+   <item>
+    <widget class="QCheckBox" name="alertWhenNoDefinition">
+     <property name="text">
+      <string>Alert when a highlight definition is not found.</string>
+     </property>
+    </widget>
+   </item>
    <item>
     <widget class="QGroupBox" name="definitionFilesGroupBox">
      <property name="title">
-      <string>Syntax Definition Files</string>
+      <string>Syntax Highlight Definition Files</string>
      </property>
-     <layout class="QHBoxLayout" name="horizontalLayout_2">
+     <layout class="QVBoxLayout" name="verticalLayout">
       <item>
-       <widget class="QLabel" name="locationLabel">
+       <widget class="QLabel" name="downloadNoteLabel">
         <property name="text">
-         <string>Location:</string>
+         <string>&lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0//EN&quot; &quot;http://www.w3.org/TR/REC-html40/strict.dtd&quot;&gt;
+&lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
+p, li { white-space: pre-wrap; }
+&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'MS Shell Dlg 2'; font-size:8.25pt; font-weight:400; font-style:normal;&quot;&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-size:8pt;&quot;&gt;Files can be downloaded from the &lt;/span&gt;&lt;a href=&quot;http://kate-editor.org/downloads/syntax_highlighting&quot;&gt;&lt;span style=&quot; font-size:8pt; text-decoration: underline; color:#0000ff;&quot;&gt;Kate Text Editor&lt;/span&gt;&lt;/a&gt;&lt;span style=&quot; font-size:8pt;&quot;&gt; website and stored at the location below.&lt;/span&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+        </property>
+        <property name="textFormat">
+         <enum>Qt::RichText</enum>
+        </property>
+        <property name="textInteractionFlags">
+         <set>Qt::TextBrowserInteraction</set>
         </property>
        </widget>
       </item>
       <item>
        <layout class="QHBoxLayout" name="horizontalLayout">
         <item>
-         <widget class="Utils::PathChooser" name="definitionFilesPath" native="true">
-          <zorder>locationLabel</zorder>
+         <widget class="QLabel" name="locationLabel">
+          <property name="text">
+           <string>Location:</string>
+          </property>
          </widget>
         </item>
         <item>
+         <widget class="Utils::PathChooser" name="definitionFilesPath" native="true"/>
+        </item>
+        <item>
          <widget class="QToolButton" name="resetButton">
           <property name="toolTip">
            <string>Reset to default</string>
@@ -51,11 +73,6 @@
        </layout>
       </item>
      </layout>
-     <zorder>locationLabel</zorder>
-     <zorder>definitionFilesPath</zorder>
-     <zorder>resetButton</zorder>
-     <zorder>resetButton</zorder>
-     <zorder>resetButton</zorder>
     </widget>
    </item>
    <item>
diff --git a/src/plugins/texteditor/generichighlighter/manager.cpp b/src/plugins/texteditor/generichighlighter/manager.cpp
index a515af0eca9..341d18b3c98 100644
--- a/src/plugins/texteditor/generichighlighter/manager.cpp
+++ b/src/plugins/texteditor/generichighlighter/manager.cpp
@@ -35,6 +35,7 @@
 #include "texteditorsettings.h"
 #include "plaintexteditorfactory.h"
 #include "highlightersettings.h"
+#include "texteditorconstants.h"
 
 #include <coreplugin/icore.h>
 #include <utils/qtcassert.h>
@@ -53,6 +54,8 @@
 #include <QtCore/QRegExp>
 #include <QtCore/QFuture>
 #include <QtCore/QtConcurrentRun>
+#include <QtCore/QUrl>
+#include <QtGui/QDesktopServices>
 #include <QtXml/QXmlSimpleReader>
 #include <QtXml/QXmlInputSource>
 #include <QtXml/QXmlStreamReader>
@@ -65,8 +68,7 @@ Manager::Manager()
 {}
 
 Manager::~Manager()
-{
-}
+{}
 
 Manager *Manager::instance()
 {
@@ -79,9 +81,7 @@ QString Manager::definitionIdByName(const QString &name) const
 
 QString Manager::definitionIdByMimeType(const QString &mimeType) const
 {
-    if (m_idByMimeType.count(mimeType) <= 1) {
-        return m_idByMimeType.value(mimeType);
-    } else {
+    if (m_idByMimeType.count(mimeType) > 1) {
         QStringList candidateIds;
         QMultiHash<QString, QString>::const_iterator it = m_idByMimeType.find(mimeType);
         QMultiHash<QString, QString>::const_iterator endIt = m_idByMimeType.end();
@@ -91,6 +91,7 @@ QString Manager::definitionIdByMimeType(const QString &mimeType) const
         qSort(candidateIds.begin(), candidateIds.end(), m_priorityComp);
         return candidateIds.last();
     }
+    return m_idByMimeType.value(mimeType);
 }
 
 QString Manager::definitionIdByAnyMimeType(const QStringList &mimeTypes) const
@@ -192,9 +193,9 @@ void Manager::registerMimeType(int index) const
 }
 
 void Manager::parseDefinitionMetadata(const QFileInfo &fileInfo,
-                                                  QString *comment,
-                                                  QStringList *mimeTypes,
-                                                  QStringList *patterns)
+                                      QString *comment,
+                                      QStringList *mimeTypes,
+                                      QStringList *patterns)
 {
     static const QLatin1Char kSemiColon(';');
     static const QLatin1Char kSlash('/');
@@ -257,3 +258,14 @@ void Manager::clear()
     m_idByMimeType.clear();
     m_definitions.clear();
 }
+
+void Manager::showGenericHighlighterOptions() const
+{
+    Core::ICore::instance()->showOptionsDialog(Constants::TEXT_EDITOR_SETTINGS_CATEGORY,
+                                               Constants::TEXT_EDITOR_HIGHLIGHTER_SETTINGS);
+}
+
+void Manager::openDefinitionsUrl(const QString &location) const
+{
+    QDesktopServices::openUrl(QUrl(location));
+}
diff --git a/src/plugins/texteditor/generichighlighter/manager.h b/src/plugins/texteditor/generichighlighter/manager.h
index 94449845310..4963c33c5a2 100644
--- a/src/plugins/texteditor/generichighlighter/manager.h
+++ b/src/plugins/texteditor/generichighlighter/manager.h
@@ -66,6 +66,8 @@ public:
 
 public slots:
     void registerMimeTypes();
+    void showGenericHighlighterOptions() const;
+    void openDefinitionsUrl(const QString &location) const;
 
 private slots:
     void registerMimeType(int index) const;
diff --git a/src/plugins/texteditor/plaintexteditor.cpp b/src/plugins/texteditor/plaintexteditor.cpp
index 7b460e4ba5a..feea084a6ac 100644
--- a/src/plugins/texteditor/plaintexteditor.cpp
+++ b/src/plugins/texteditor/plaintexteditor.cpp
@@ -47,6 +47,8 @@
 #include <QtCore/QSharedPointer>
 #include <QtCore/QFileInfo>
 
+#include <QDebug>
+
 using namespace TextEditor;
 using namespace TextEditor::Internal;
 
@@ -59,7 +61,8 @@ PlainTextEditorEditable::PlainTextEditorEditable(PlainTextEditor *editor)
 }
 
 PlainTextEditor::PlainTextEditor(QWidget *parent)
-  : BaseTextEditor(parent)
+  : BaseTextEditor(parent),
+  m_isMissingSyntaxDefinition(true)
 {
     setRevisionsVisible(true);
     setMarksVisible(true);
@@ -71,7 +74,7 @@ PlainTextEditor::PlainTextEditor(QWidget *parent)
 
     m_commentDefinition.clearCommentStyles();
 
-    connect(file(), SIGNAL(changed()), this, SLOT(configure()));
+    connect(file(), SIGNAL(changed()), this, SLOT(fileChanged()));
 }
 
 PlainTextEditor::~PlainTextEditor()
@@ -112,13 +115,15 @@ void PlainTextEditor::setFontSettings(const FontSettings & fs)
     }
 }
 
-void PlainTextEditor::configure()
+void PlainTextEditor::fileChanged()
 {
     configure(Core::ICore::instance()->mimeDatabase()->findByFile(file()->fileName()));
 }
 
 void PlainTextEditor::configure(const Core::MimeType &mimeType)
 {
+    m_isMissingSyntaxDefinition = true;
+
     if (mimeType.isNull())
         return;
 
@@ -143,8 +148,12 @@ void PlainTextEditor::configure(const Core::MimeType &mimeType)
             m_commentDefinition.setSingleLine(definition->singleLineComment());
             m_commentDefinition.setMultiLineStart(definition->multiLineCommentStart());
             m_commentDefinition.setMultiLineEnd(definition->multiLineCommentEnd());
+
+            m_isMissingSyntaxDefinition = false;
         } catch (const HighlighterException &) {
         }
+    } else if (file() && file()->fileName().endsWith(QLatin1String(".txt"))) {
+        m_isMissingSyntaxDefinition = false;
     }
 
     // @todo: Indentation specification through the definition files is not really being used
@@ -153,6 +162,11 @@ void PlainTextEditor::configure(const Core::MimeType &mimeType)
     m_indenter.reset(new NormalIndenter);
 }
 
+bool PlainTextEditor::isMissingSyntaxDefinition() const
+{
+    return m_isMissingSyntaxDefinition;
+}
+
 QString PlainTextEditor::findDefinitionId(const Core::MimeType &mimeType,
                                           bool considerParents) const
 {
@@ -162,7 +176,7 @@ QString PlainTextEditor::findDefinitionId(const Core::MimeType &mimeType,
         if (definitionId.isEmpty()) {
             foreach (const QString &parent, mimeType.subClassesOf()) {
                 const Core::MimeType &parentMimeType =
-                        Core::ICore::instance()->mimeDatabase()->findByType(parent);
+                    Core::ICore::instance()->mimeDatabase()->findByType(parent);
                 definitionId = findDefinitionId(parentMimeType, considerParents);
             }
         }
diff --git a/src/plugins/texteditor/plaintexteditor.h b/src/plugins/texteditor/plaintexteditor.h
index 15144752f63..d027ef07ff4 100644
--- a/src/plugins/texteditor/plaintexteditor.h
+++ b/src/plugins/texteditor/plaintexteditor.h
@@ -48,6 +48,7 @@ class Indenter;
 
 class TEXTEDITOR_EXPORT PlainTextEditorEditable : public BaseTextEditorEditable
 {
+    Q_OBJECT
 public:
     PlainTextEditorEditable(PlainTextEditor *);
     QList<int> context() const;
@@ -70,13 +71,14 @@ public:
     ~PlainTextEditor();
 
     void configure(const Core::MimeType &mimeType);
+    bool isMissingSyntaxDefinition() const;
 
 public slots:
     virtual void unCommentSelection();
     virtual void setFontSettings(const FontSettings &fs);
 
 private slots:
-    void configure();
+    void fileChanged();
 
 protected:
     virtual BaseTextEditorEditable *createEditableInterface() { return new PlainTextEditorEditable(this); }    
@@ -85,6 +87,7 @@ protected:
 private:
     QString findDefinitionId(const Core::MimeType &mimeType, bool considerParents) const;
 
+    bool m_isMissingSyntaxDefinition;
     Utils::CommentDefinition m_commentDefinition;
     QScopedPointer<Indenter> m_indenter;
 };
diff --git a/src/plugins/texteditor/plaintexteditorfactory.cpp b/src/plugins/texteditor/plaintexteditorfactory.cpp
index 7a219973955..498a471a1f9 100644
--- a/src/plugins/texteditor/plaintexteditorfactory.cpp
+++ b/src/plugins/texteditor/plaintexteditorfactory.cpp
@@ -32,10 +32,15 @@
 #include "texteditorconstants.h"
 #include "texteditorplugin.h"
 #include "texteditoractionhandler.h"
+#include "texteditorsettings.h"
+#include "manager.h"
+#include "highlightersettings.h"
 
 #include <coreplugin/coreconstants.h>
 #include <coreplugin/editormanager/editormanager.h>
 
+#include <QDebug>
+
 using namespace TextEditor;
 using namespace TextEditor::Internal;
 
@@ -47,6 +52,9 @@ PlainTextEditorFactory::PlainTextEditorFactory(QObject *parent)
         TextEditorActionHandler::Format |
         TextEditorActionHandler::UnCommentSelection);
     m_mimeTypes << QLatin1String(TextEditor::Constants::C_TEXTEDITOR_MIMETYPE_TEXT);
+
+    connect(Core::EditorManager::instance(), SIGNAL(currentEditorChanged(Core::IEditor*)),
+            this, SLOT(updateEditorInfoBar(Core::IEditor*)));
 }
 
 PlainTextEditorFactory::~PlainTextEditorFactory()
@@ -77,6 +85,25 @@ Core::IEditor *PlainTextEditorFactory::createEditor(QWidget *parent)
     return rc->editableInterface();
 }
 
+void PlainTextEditorFactory::updateEditorInfoBar(Core::IEditor *editor)
+{
+    PlainTextEditorEditable *editorEditable = qobject_cast<PlainTextEditorEditable *>(editor);
+    if (editorEditable) {
+        PlainTextEditor *textEditor = static_cast<PlainTextEditor *>(editorEditable->editor());
+        if (textEditor->isMissingSyntaxDefinition() &&
+            TextEditorSettings::instance()->highlighterSettings().m_alertWhenNoDefinition) {
+            Core::EditorManager::instance()->showEditorInfoBar(
+                Constants::INFO_SYNTAX_DEFINITION,
+                tr("A highlight definition was not found for this file. Would you like to try to find one?"),
+                tr("Show highlighter options"),
+                Manager::instance(),
+                SLOT(showGenericHighlighterOptions()));
+        }
+    } else {
+        Core::EditorManager::instance()->hideEditorInfoBar(Constants::INFO_SYNTAX_DEFINITION);
+    }
+}
+
 void PlainTextEditorFactory::addMimeType(const QString &type)
 {
     m_mimeTypes.append(type);
diff --git a/src/plugins/texteditor/plaintexteditorfactory.h b/src/plugins/texteditor/plaintexteditorfactory.h
index a01a80f7f11..51ebbc52b4c 100644
--- a/src/plugins/texteditor/plaintexteditorfactory.h
+++ b/src/plugins/texteditor/plaintexteditorfactory.h
@@ -61,6 +61,9 @@ public:
 
     TextEditor::TextEditorActionHandler *actionHandler() const { return m_actionHandler; }
 
+private slots:
+    void updateEditorInfoBar(Core::IEditor *editor);
+
 private:
     QStringList m_mimeTypes;
     TextEditor::TextEditorActionHandler *m_actionHandler;
diff --git a/src/plugins/texteditor/texteditorconstants.h b/src/plugins/texteditor/texteditorconstants.h
index d4e46500a94..12338d16f1b 100644
--- a/src/plugins/texteditor/texteditorconstants.h
+++ b/src/plugins/texteditor/texteditorconstants.h
@@ -87,6 +87,7 @@ const char * const GOTO_NEXT_CHARACTER_WITH_SELECTION = "TextEditor.GotoNextChar
 const char * const GOTO_PREVIOUS_WORD_WITH_SELECTION = "TextEditor.GotoPreviousWordWithSelection";
 const char * const GOTO_NEXT_WORD_WITH_SELECTION = "TextEditor.GotoNextWordWithSelection";
 const char * const C_TEXTEDITOR_MIMETYPE_TEXT = "text/plain";
+const char * const INFO_SYNTAX_DEFINITION = "TextEditor.InfoSyntaxDefinition";
 
 
 // Text color and style categories
@@ -126,6 +127,10 @@ const char * const C_DIFF_LOCATION       = "DiffLocation";
 const char * const TEXT_EDITOR_SETTINGS_CATEGORY = "C.TextEditor";
 const char * const TEXT_EDITOR_SETTINGS_CATEGORY_ICON = ":/core/images/category_texteditor.png";
 const char * const TEXT_EDITOR_SETTINGS_TR_CATEGORY = QT_TRANSLATE_NOOP("TextEditor", "Text Editor");
+const char * const TEXT_EDITOR_FONT_SETTINGS = "A.FontSettings";
+const char * const TEXT_EDITOR_BEHAVIOR_SETTINGS = "B.BehaviourSettings";
+const char * const TEXT_EDITOR_DISPLAY_SETTINGS = "D.DisplaySettings";
+const char * const TEXT_EDITOR_HIGHLIGHTER_SETTINGS = "E.HighlighterSettings";
 
 } // namespace Constants
 } // namespace TextEditor
diff --git a/src/plugins/texteditor/texteditorsettings.cpp b/src/plugins/texteditor/texteditorsettings.cpp
index d594d0c5242..48d01931381 100644
--- a/src/plugins/texteditor/texteditorsettings.cpp
+++ b/src/plugins/texteditor/texteditorsettings.cpp
@@ -143,27 +143,27 @@ TextEditorSettings::TextEditorSettings(QObject *parent)
     formatDescriptions.append(FormatDescription(QLatin1String(C_DIFF_LOCATION), tr("Diff Location"), Qt::blue));
 
     m_d->m_fontSettingsPage = new FontSettingsPage(formatDescriptions,
-                                                   QLatin1String("A.FontSettings"),
+                                                   QLatin1String(Constants::TEXT_EDITOR_FONT_SETTINGS),
                                                    this);
     pm->addObject(m_d->m_fontSettingsPage);
 
     // Add the GUI used to configure the tab, storage and interaction settings
     TextEditor::BehaviorSettingsPageParameters behaviorSettingsPageParameters;
-    behaviorSettingsPageParameters.id = QLatin1String("B.BehaviourSettings");
+    behaviorSettingsPageParameters.id = QLatin1String(Constants::TEXT_EDITOR_BEHAVIOR_SETTINGS);
     behaviorSettingsPageParameters.displayName = tr("Behavior");
     behaviorSettingsPageParameters.settingsPrefix = QLatin1String("text");
     m_d->m_behaviorSettingsPage = new BehaviorSettingsPage(behaviorSettingsPageParameters, this);
     pm->addObject(m_d->m_behaviorSettingsPage);
 
     TextEditor::DisplaySettingsPageParameters displaySettingsPageParameters;
-    displaySettingsPageParameters.id = QLatin1String("D.DisplaySettings"),
+    displaySettingsPageParameters.id = QLatin1String(Constants::TEXT_EDITOR_DISPLAY_SETTINGS),
     displaySettingsPageParameters.displayName = tr("Display");
     displaySettingsPageParameters.settingsPrefix = QLatin1String("text");
     m_d->m_displaySettingsPage = new DisplaySettingsPage(displaySettingsPageParameters, this);
     pm->addObject(m_d->m_displaySettingsPage);
 
     m_d->m_highlighterSettingsPage =
-        new HighlighterSettingsPage(QLatin1String("E.HighlighterSettings"), this);
+        new HighlighterSettingsPage(QLatin1String(Constants::TEXT_EDITOR_HIGHLIGHTER_SETTINGS), this);
     pm->addObject(m_d->m_highlighterSettingsPage);
 
     connect(m_d->m_fontSettingsPage, SIGNAL(changed(TextEditor::FontSettings)),