Add a context menu to the gtk task manager.

BUG=11392
TEST=none
Review URL: http://codereview.chromium.org/155027

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@19956 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 13 insertions, 0 deletions

diff --git a/chrome/browser/gtk/task_manager_gtk.h b/chrome/browser/gtk/task_manager_gtk.h
index c73e4161..7336522 100644
--- a/chrome/browser/gtk/task_manager_gtk.h
+++ b/chrome/browser/gtk/task_manager_gtk.h
@@ -27,6 +27,9 @@ class TaskManagerGtk : public TaskManagerModelObserver {
   static void Show();
 
  private:
+  class ContextMenuController;
+  friend class ContextMenuController;
+
   // Initializes the task manager dialog.
   void Init();
 
@@ -46,6 +49,9 @@ class TaskManagerGtk : public TaskManagerModelObserver {
   // Queries the treeview for the selected rows, and kills those processes.
   void KillSelectedProcesses();
 
+  // Opens the context menu used to select the task manager columns.
+  void ShowContextMenu();
+
   // response signal handler that notifies us of dialog responses.
   static void OnResponse(GtkDialog* dialog, gint response_id,
                          TaskManagerGtk* task_manager);
@@ -54,6 +60,10 @@ class TaskManagerGtk : public TaskManagerModelObserver {
   static void OnSelectionChanged(GtkTreeSelection* selection,
                                  TaskManagerGtk* task_manager);
 
+  // button-release-event handler that opens the right-click context menu.
+  static gboolean OnButtonReleaseEvent(GtkWidget* widget, GdkEventButton* event,
+                                       TaskManagerGtk* task_manager);
+
   // The task manager.
   TaskManager* task_manager_;
 
@@ -72,6 +82,9 @@ class TaskManagerGtk : public TaskManagerModelObserver {
   // The number of processes in |process_list_|.
   int process_count_;
 
+  // The context menu controller.
+  scoped_ptr<ContextMenuController> menu_controller_;
+
   // An open task manager window. There can only be one open at a time. This
   // is reset to NULL when the window is closed.
   static TaskManagerGtk* instance_;