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1 // Copyright 2014 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/libgtk2ui/app_indicator_icon_menu.h"
6 
7 #include <gtk/gtk.h>
8 
9 #include "base/bind.h"
10 #include "base/debug/leak_annotations.h"
11 #include "chrome/browser/ui/libgtk2ui/menu_util.h"
12 #include "ui/base/models/menu_model.h"
13 
14 namespace libgtk2ui {
15 
AppIndicatorIconMenu(ui::MenuModel * model)16 AppIndicatorIconMenu::AppIndicatorIconMenu(ui::MenuModel* model)
17     : menu_model_(model),
18       click_action_replacement_menu_item_added_(false),
19       gtk_menu_(NULL),
20       block_activation_(false) {
21   {
22     ANNOTATE_SCOPED_MEMORY_LEAK; // http://crbug.com/378770
23     gtk_menu_ = gtk_menu_new();
24   }
25   g_object_ref_sink(gtk_menu_);
26   if (menu_model_) {
27     BuildSubmenuFromModel(menu_model_,
28                           gtk_menu_,
29                           G_CALLBACK(OnMenuItemActivatedThunk),
30                           &block_activation_,
31                           this);
32     Refresh();
33   }
34 }
35 
~AppIndicatorIconMenu()36 AppIndicatorIconMenu::~AppIndicatorIconMenu() {
37   gtk_widget_destroy(gtk_menu_);
38   g_object_unref(gtk_menu_);
39 }
40 
UpdateClickActionReplacementMenuItem(const char * label,const base::Closure & callback)41 void AppIndicatorIconMenu::UpdateClickActionReplacementMenuItem(
42     const char* label,
43     const base::Closure& callback) {
44   click_action_replacement_callback_ = callback;
45 
46   if (click_action_replacement_menu_item_added_) {
47     GList* children = gtk_container_get_children(GTK_CONTAINER(gtk_menu_));
48     for (GList* child = children; child; child = g_list_next(child)) {
49       if (g_object_get_data(G_OBJECT(child->data), "click-action-item") !=
50           NULL) {
51         gtk_menu_item_set_label(GTK_MENU_ITEM(child->data), label);
52         break;
53       }
54     }
55     g_list_free(children);
56   } else {
57     click_action_replacement_menu_item_added_ = true;
58 
59     // If |menu_model_| is non empty, add a separator to separate the
60     // "click action replacement menu item" from the other menu items.
61     if (menu_model_ && menu_model_->GetItemCount() > 0) {
62       GtkWidget* menu_item = gtk_separator_menu_item_new();
63       gtk_widget_show(menu_item);
64       gtk_menu_shell_prepend(GTK_MENU_SHELL(gtk_menu_), menu_item);
65     }
66 
67     GtkWidget* menu_item = gtk_menu_item_new_with_mnemonic(label);
68     g_object_set_data(
69         G_OBJECT(menu_item), "click-action-item", GINT_TO_POINTER(1));
70     g_signal_connect(menu_item,
71                      "activate",
72                      G_CALLBACK(OnClickActionReplacementMenuItemActivatedThunk),
73                      this);
74     gtk_widget_show(menu_item);
75     gtk_menu_shell_prepend(GTK_MENU_SHELL(gtk_menu_), menu_item);
76   }
77 }
78 
Refresh()79 void AppIndicatorIconMenu::Refresh() {
80   gtk_container_foreach(
81       GTK_CONTAINER(gtk_menu_), SetMenuItemInfo, &block_activation_);
82 }
83 
GetGtkMenu()84 GtkMenu* AppIndicatorIconMenu::GetGtkMenu() {
85   return GTK_MENU(gtk_menu_);
86 }
87 
88 
OnClickActionReplacementMenuItemActivated(GtkWidget * menu_item)89 void AppIndicatorIconMenu::OnClickActionReplacementMenuItemActivated(
90     GtkWidget* menu_item) {
91   click_action_replacement_callback_.Run();
92 }
93 
OnMenuItemActivated(GtkWidget * menu_item)94 void AppIndicatorIconMenu::OnMenuItemActivated(GtkWidget* menu_item) {
95   if (block_activation_)
96     return;
97 
98   ui::MenuModel* model = ModelForMenuItem(GTK_MENU_ITEM(menu_item));
99   if (!model) {
100     // There won't be a model for "native" submenus like the "Input Methods"
101     // context menu. We don't need to handle activation messages for submenus
102     // anyway, so we can just return here.
103     DCHECK(gtk_menu_item_get_submenu(GTK_MENU_ITEM(menu_item)));
104     return;
105   }
106 
107   // The activate signal is sent to radio items as they get deselected;
108   // ignore it in this case.
109   if (GTK_IS_RADIO_MENU_ITEM(menu_item) &&
110       !gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(menu_item))) {
111     return;
112   }
113 
114   int id;
115   if (!GetMenuItemID(menu_item, &id))
116     return;
117 
118   // The menu item can still be activated by hotkeys even if it is disabled.
119   if (menu_model_->IsEnabledAt(id))
120     ExecuteCommand(model, id);
121 }
122 
123 }  // namespace libgtk2ui
124