Add a skeleton UI for the gtk task manager.

BUG=11392
TEST=Right-click on the tabstrip and select 'Task Manager'.
Review URL: http://codereview.chromium.org/150082

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@19619 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 51 insertions, 0 deletions

diff --git a/chrome/browser/gtk/task_manager_gtk.h b/chrome/browser/gtk/task_manager_gtk.h
new file mode 100644
index 0000000..a2d39bb
--- /dev/null
+++ b/chrome/browser/gtk/task_manager_gtk.h
@@ -0,0 +1,51 @@
+// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_BROWSER_GTK_TASK_MANAGER_GTK_H_
+#define CHROME_BROWSER_GTK_TASK_MANAGER_GTK_H_
+
+#include "chrome/browser/task_manager.h"
+
+class TaskManagerGtk : public TaskManagerModelObserver {
+ public:
+  TaskManagerGtk();
+  virtual ~TaskManagerGtk();
+
+  // TaskManagerModelObserver
+  virtual void OnModelChanged();
+  virtual void OnItemsChanged(int start, int length);
+  virtual void OnItemsAdded(int start, int length);
+  virtual void OnItemsRemoved(int start, int length);
+
+  void Init();
+
+  // response signal handler that notifies us of dialog responses.
+  static void OnResponse(GtkDialog* dialog, gint response_id,
+                         TaskManagerGtk* task_manager);
+
+  // Creates the task manager if it doesn't exist; otherwise, it activates the
+  // existing task manager window.
+  static void Show();
+
+ private:
+  // The task manager.
+  TaskManager* task_manager_;
+
+  // Our model.
+  TaskManagerModel* model_;
+
+  // The task manager dialog window.
+  GtkWidget* dialog_;
+
+  // The treeview that contains the process list.
+  GtkWidget* treeview_;
+
+  // 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_;
+
+  DISALLOW_COPY_AND_ASSIGN(TaskManagerGtk);
+};
+
+#endif  // CHROME_BROWSER_GTK_TASK_MANAGER_GTK_H_