1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CHROME_BROWSER_UI_GTK_THEME_INSTALL_BUBBLE_VIEW_GTK_H_ 6 #define CHROME_BROWSER_UI_GTK_THEME_INSTALL_BUBBLE_VIEW_GTK_H_ 7 #pragma once 8 9 #include <gtk/gtk.h> 10 11 #include "base/basictypes.h" 12 #include "content/common/notification_observer.h" 13 #include "content/common/notification_registrar.h" 14 #include "ui/base/gtk/gtk_signal.h" 15 16 class ThemeInstallBubbleViewGtk : public NotificationObserver { 17 public: 18 static void Show(GtkWindow* parent); 19 20 // NotificationObserver implementation. 21 virtual void Observe(NotificationType type, 22 const NotificationSource& source, 23 const NotificationDetails& details); 24 25 private: 26 explicit ThemeInstallBubbleViewGtk(GtkWidget* parent); 27 28 virtual ~ThemeInstallBubbleViewGtk(); 29 increment_num_loading()30 void increment_num_loading() { num_loads_extant_++; } 31 32 // Create the widget hierarchy. 33 void InitWidgets(); 34 35 // Reposition |widget_| to be centered over |parent_|. 36 void MoveWindow(); 37 38 // Our parent is going down; self destruct. 39 CHROMEGTK_CALLBACK_0(ThemeInstallBubbleViewGtk, gboolean, OnUnmapEvent); 40 41 // Draw the background. This is only signalled if we are using a compositing 42 // window manager, otherwise we just use ActAsRoundedWindow(). 43 CHROMEGTK_CALLBACK_1(ThemeInstallBubbleViewGtk, gboolean, 44 OnExpose, GdkEventExpose*); 45 46 GtkWidget* widget_; 47 48 // The parent browser window, over which we position ourselves. 49 GtkWidget* parent_; 50 51 // The number of loads we represent. When it reaches 0 we delete ourselves. 52 int num_loads_extant_; 53 54 NotificationRegistrar registrar_; 55 56 // Our one instance. We don't allow more than one to exist at a time. 57 static ThemeInstallBubbleViewGtk* instance_; 58 59 DISALLOW_COPY_AND_ASSIGN(ThemeInstallBubbleViewGtk); 60 }; 61 62 #endif // CHROME_BROWSER_UI_GTK_THEME_INSTALL_BUBBLE_VIEW_GTK_H_ 63