src/chrome/browser/ui/gtk/overflow_button.cc

   1 // Copyright (c) 2012 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 #include "chrome/browser/ui/gtk/overflow_button.h"
   6
   7 #include <gtk/gtk.h>
   8
   9 #include "chrome/browser/chrome_notification_types.h"
  10 #include "chrome/browser/profiles/profile.h"
  11 #include "chrome/browser/ui/gtk/gtk_theme_service.h"
  12 #include "content/public/browser/notification_source.h"
  13 #include "grit/theme_resources.h"
  14 #include "ui/base/resource/resource_bundle.h"
  15 #include "ui/gfx/image/image.h"
  16
  17 OverflowButton::OverflowButton(Profile* profile) : profile_(profile) {
  18   widget_.Own(GtkThemeService::GetFrom(profile)->BuildChromeButton());
  19   gtk_widget_set_no_show_all(widget_.get(), TRUE);
  20
  21   GtkThemeService* theme_service = GtkThemeService::GetFrom(profile);
  22   registrar_.Add(this, chrome::NOTIFICATION_BROWSER_THEME_CHANGED,
  23                  content::Source<ThemeService>(theme_service));
  24   theme_service->InitThemesFor(this);
  25 }
  26
  27 OverflowButton::~OverflowButton() {
  28   widget_.Destroy();
  29 }
  30
  31 void OverflowButton::Observe(int type,
  32                              const content::NotificationSource& source,
  33                              const content::NotificationDetails& details) {
  34   GtkWidget* former_child = gtk_bin_get_child(GTK_BIN(widget()));
  35   if (former_child)
  36     gtk_widget_destroy(former_child);
  37
  38   GtkWidget* new_child;
  39   if (GtkThemeService::GetFrom(profile_)->UsingNativeTheme()) {
  40     new_child = gtk_arrow_new(GTK_ARROW_DOWN, GTK_SHADOW_NONE);
  41   } else {
  42     const gfx::Image& image = ui::ResourceBundle::GetSharedInstance().
  43         GetNativeImageNamed(IDR_BOOKMARK_BAR_CHEVRONS,
  44                             ui::ResourceBundle::RTL_ENABLED);
  45     new_child = gtk_image_new_from_pixbuf(image.ToGdkPixbuf());
  46   }
  47
  48   gtk_container_add(GTK_CONTAINER(widget()), new_child);
  49   gtk_widget_show(new_child);
  50 }