Disable "Search Again" if file filter is disabled.

For example disabled it for "All Projects" searches when all projects
are closed.

Change-Id: Icc65a87577ba51f4362791dc8ecdca3c92819553
Reviewed-by: Leandro Melo <leandro.melo@nokia.com>

src/plugins/cpptools/symbolsfindfilter.cpp

@@ -242,7 +242,7 @@ void SymbolsFindFilter::onTaskStarted(const QString &type)
 {
     if (type == CppTools::Constants::TASK_INDEX) {
         m_enabled = false;
-        emit changed();
+        emit enabledChanged(m_enabled);
     }
 }
 
@@ -250,7 +250,7 @@ void SymbolsFindFilter::onAllTasksFinished(const QString &type)
 {
     if (type == CppTools::Constants::TASK_INDEX) {
         m_enabled = true;
-        emit changed();
+        emit enabledChanged(m_enabled);
     }
 }
 

src/plugins/find/findplugin.cpp

@@ -249,7 +249,7 @@ void FindPlugin::setupFilterMenuItems()
         mfindadvanced->addAction(cmd);
         d->m_filterActions.insert(filter, action);
         connect(action, SIGNAL(triggered(bool)), this, SLOT(openFindFilter()));
-        connect(filter, SIGNAL(changed()), this, SLOT(filterChanged()));
+        connect(filter, SIGNAL(enabledChanged(bool)), this, SLOT(filterChanged()));
     }
     d->m_findDialog->setFindFilters(findInterfaces);
     d->m_openFindDialog->setEnabled(haveEnabledFilters);

src/plugins/find/findtoolwindow.cpp

@@ -175,9 +175,9 @@ void FindToolWindow::setCurrentFilter(int index)
         if (i == index) {
             m_configWidget = configWidget;
             if (m_currentFilter)
-                disconnect(m_currentFilter, SIGNAL(changed()), this, SLOT(updateButtonStates()));
+                disconnect(m_currentFilter, SIGNAL(enabledChanged(bool)), this, SLOT(updateButtonStates()));
             m_currentFilter = m_filters.at(i);
-            connect(m_currentFilter, SIGNAL(changed()), this, SLOT(updateButtonStates()));
+            connect(m_currentFilter, SIGNAL(enabledChanged(bool)), this, SLOT(updateButtonStates()));
             updateButtonStates();
             if (m_configWidget) {
                 m_ui.configWidget->layout()->addWidget(m_configWidget);

src/plugins/find/ifindfilter.h

@@ -72,7 +72,7 @@ public:
     static QPixmap pixmapForFindFlags(FindFlags flags);
     static QString descriptionForFindFlags(FindFlags flags);
 signals:
-    void changed();
+    void enabledChanged(bool enabled);
 };
 
 } // namespace Find

src/plugins/find/searchresultwidget.cpp

@@ -474,6 +474,11 @@ void SearchResultWidget::setSearchAgainSupported(bool supported)
     m_searchAgainButton->setVisible(supported && !m_cancelButton->isVisible());
 }
 
+void SearchResultWidget::setSearchAgainEnabled(bool enabled)
+{
+    m_searchAgainButton->setEnabled(enabled);
+}
+
 void SearchResultWidget::finishSearch()
 {
     m_replaceTextEdit->setEnabled(m_count > 0);

src/plugins/find/searchresultwidget.h

@@ -86,6 +86,7 @@ public:
     void reset();
 
     void setSearchAgainSupported(bool supported);
+    void setSearchAgainEnabled(bool enabled);
 
 public slots:
     void finishSearch();

src/plugins/find/searchresultwindow.cpp

@@ -655,6 +655,11 @@ void SearchResult::reset()
     m_widget->reset();
 }
 
+void SearchResult::setSearchAgainEnabled(bool enabled)
+{
+    m_widget->setSearchAgainEnabled(enabled);
+}
+
 } // namespace Find
 
 #include "searchresultwindow.moc"

src/plugins/find/searchresultwindow.h

@@ -108,6 +108,7 @@ public slots:
     void finishSearch();
     void setTextToReplace(const QString &textToReplace);
     void reset();
+    void setSearchAgainEnabled(bool enabled);
 
 signals:
     void activated(const Find::SearchResultItem &item);

src/plugins/projectexplorer/allprojectsfind.cpp

@@ -57,7 +57,7 @@ AllProjectsFind::AllProjectsFind(ProjectExplorerPlugin *plugin)
     : m_plugin(plugin),
       m_configWidget(0)
 {
-    connect(m_plugin, SIGNAL(fileListChanged()), this, SIGNAL(changed()));
+    connect(m_plugin, SIGNAL(fileListChanged()), this, SLOT(handleFileListChanged()));
 }
 
 QString AllProjectsFind::id() const
@@ -135,6 +135,11 @@ QString AllProjectsFind::toolTip() const
     return tr("Filter: %1\n%2").arg(fileNameFilters().join(QLatin1String(",")));
 }
 
+void AllProjectsFind::handleFileListChanged()
+{
+    emit enabledChanged(isEnabled());
+}
+
 QWidget *AllProjectsFind::createConfigWidget()
 {
     if (!m_configWidget) {

src/plugins/projectexplorer/allprojectsfind.h

@@ -70,6 +70,8 @@ protected:
     QString label() const;
     QString toolTip() const;
 
+private slots:
+    void handleFileListChanged();
 
 private:
     ProjectExplorerPlugin *m_plugin;

src/plugins/projectexplorer/currentprojectfind.cpp

@@ -54,7 +54,7 @@ CurrentProjectFind::CurrentProjectFind(ProjectExplorerPlugin *plugin)
     m_plugin(plugin)
 {
     connect(m_plugin, SIGNAL(currentProjectChanged(ProjectExplorer::Project*)),
-            this, SIGNAL(changed()));
+            this, SLOT(handleProjectChanged()));
 }
 
 QString CurrentProjectFind::id() const
@@ -99,6 +99,11 @@ QString CurrentProjectFind::label() const
     return tr("Project '%1':").arg(m_plugin->currentProject()->displayName());
 }
 
+void CurrentProjectFind::handleProjectChanged()
+{
+    emit enabledChanged(isEnabled());
+}
+
 void CurrentProjectFind::writeSettings(QSettings *settings)
 {
     settings->beginGroup(QLatin1String("CurrentProjectFind"));

src/plugins/projectexplorer/currentprojectfind.h

@@ -67,6 +67,9 @@ protected:
     QVariant additionalParameters() const;
     QString label() const;
 
+private slots:
+    void handleProjectChanged();
+
 private:
     ProjectExplorerPlugin *m_plugin;
 };

src/plugins/texteditor/basefilefind.cpp

@@ -131,6 +131,7 @@ void BaseFileFind::runNewSearch(const QString &txt, Find::FindFlags findFlags,
     connect(search, SIGNAL(visibilityChanged(bool)), this, SLOT(hideHighlightAll(bool)));
     connect(search, SIGNAL(cancelled()), this, SLOT(cancel()));
     connect(search, SIGNAL(searchAgainRequested()), this, SLOT(searchAgain()));
+    connect(this, SIGNAL(enabledChanged(bool)), search, SLOT(setSearchAgainEnabled(bool)));
     runSearch(search);
 }
 

src/plugins/texteditor/findincurrentfile.cpp

@@ -104,13 +104,13 @@ void FindInCurrentFile::handleFileChange(Core::IEditor *editor)
     if (!editor) {
         if (m_currentFile) {
             m_currentFile = 0;
-            emit changed();
+            emit enabledChanged(isEnabled());
         }
     } else {
         Core::IFile *file = editor->file();
         if (file != m_currentFile) {
             m_currentFile = file;
-            emit changed();
+            emit enabledChanged(isEnabled());
         }
     }
 }