Handle middle click on gtk tab close button.

BUG=14636
TEST=middle click on tab close button, left click on tab close button

Review URL: http://codereview.chromium.org/131072

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@18776 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 19 insertions, 0 deletions

diff --git a/chrome/browser/gtk/tabs/tab_renderer_gtk.cc b/chrome/browser/gtk/tabs/tab_renderer_gtk.cc
index e024782..2408d55 100755
--- a/chrome/browser/gtk/tabs/tab_renderer_gtk.cc
+++ b/chrome/browser/gtk/tabs/tab_renderer_gtk.cc
@@ -681,6 +681,8 @@ CustomDrawButton* TabRendererGtk::MakeCloseButton() {
 
   g_signal_connect(G_OBJECT(button->widget()), "clicked",
                    G_CALLBACK(OnCloseButtonClicked), this);
+  g_signal_connect(G_OBJECT(button->widget()), "button-release-event",
+                   G_CALLBACK(OnCloseButtonMouseRelease), this);
   GTK_WIDGET_UNSET_FLAGS(button->widget(), GTK_CAN_FOCUS);
   gtk_fixed_put(GTK_FIXED(tab_.get()), button->widget(), 0, 0);
 
@@ -698,6 +700,18 @@ void TabRendererGtk::OnCloseButtonClicked(GtkWidget* widget,
 }
 
 // static
+gboolean TabRendererGtk::OnCloseButtonMouseRelease(GtkWidget* widget,
+                                                   GdkEventButton* event,
+                                                   TabRendererGtk* tab) {
+  if (event->button == 2) {
+    tab->CloseButtonClicked();
+    return TRUE;
+  }
+
+  return FALSE;
+}
+
+// static
 gboolean TabRendererGtk::OnExpose(GtkWidget* widget, GdkEventExpose* event,
                                   TabRendererGtk* tab) {
   tab->PaintTab(event);
diff --git a/chrome/browser/gtk/tabs/tab_renderer_gtk.h b/chrome/browser/gtk/tabs/tab_renderer_gtk.h
index 990081f..fd0343c 100644
--- a/chrome/browser/gtk/tabs/tab_renderer_gtk.h
+++ b/chrome/browser/gtk/tabs/tab_renderer_gtk.h
@@ -227,6 +227,11 @@ class TabRendererGtk : public AnimationDelegate {
   // Handles the clicked signal for the close button.
   static void OnCloseButtonClicked(GtkWidget* widget, TabRendererGtk* tab);
 
+  // Handles middle clicking the close button.
+  static gboolean OnCloseButtonMouseRelease(GtkWidget* widget,
+                                            GdkEventButton* event,
+                                            TabRendererGtk* tab);
+
   // expose-event handler that redraws the tab.
   static gboolean OnExpose(GtkWidget* widget, GdkEventExpose* e,
                            TabRendererGtk* tab);