(GTK only) Replace checkboxes with menus and add support for managed settings.

chrome/browser/ui/gtk/website_settings/permission_selector.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/ui/gtk/website_settings/permission_selector.h"
 
-#include <gtk/gtk.h>
-
 #include "base/compiler_specific.h"
+#include "base/i18n/rtl.h"
+#include "base/utf_string_conversions.h"
 #include "chrome/browser/ui/gtk/gtk_theme_service.h"
 #include "chrome/browser/ui/gtk/gtk_util.h"
+#include "chrome/browser/ui/gtk/menu_gtk.h"
 #include "chrome/browser/ui/website_settings/website_settings_ui.h"
 #include "grit/generated_resources.h"
+#include "grit/theme_resources.h"
 #include "ui/base/gtk/gtk_hig_constants.h"
 #include "ui/base/l10n/l10n_util.h"
+#include "ui/base/models/menu_model.h"
+#include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/image/image.h"
 
-namespace {
-
-GtkWidget* CreateTextLabel(const std::string& text,
-                           GtkThemeService* theme_service) {
-  GtkWidget* label = theme_service->BuildLabel(text, ui::kGdkBlack);
-  gtk_label_set_selectable(GTK_LABEL(label), TRUE);
-  gtk_label_set_line_wrap_mode(GTK_LABEL(label), PANGO_WRAP_WORD_CHAR);
-  return label;
-}
-
-}  // namespace
-
 PermissionSelector::PermissionSelector(GtkThemeService* theme_service,
                                        ContentSettingsType type,
                                        ContentSetting setting,
-                                       ContentSetting default_setting)
-    : theme_service_(theme_service),
-      type_(type),
-      setting_(setting),
-      default_setting_(default_setting),
+                                       ContentSetting default_setting,
+                                       content_settings::SettingSource source)
+    : widget_(NULL),
+      menu_button_(NULL),
       icon_(NULL) {
   DCHECK_NE(default_setting, CONTENT_SETTING_DEFAULT);
+
+  // Create permission info box.
+  const int kChildSpacing = 4;
+  widget_ = gtk_hbox_new(FALSE, kChildSpacing);
+
+  // Add permission type icon.
+  ContentSetting effective_setting = setting;
+  if (effective_setting == CONTENT_SETTING_DEFAULT)
+    effective_setting = default_setting;
+  GdkPixbuf* pixbuf = WebsiteSettingsUI::GetPermissionIcon(
+      type, effective_setting).ToGdkPixbuf();
+  icon_ = gtk_image_new_from_pixbuf(pixbuf);
+  gtk_box_pack_start(GTK_BOX(widget_), icon_, FALSE, FALSE, 0);
+
+  // Add a label for the permission type.
+  GtkWidget* label = theme_service->BuildLabel(l10n_util::GetStringFUTF8(
+      IDS_WEBSITE_SETTINGS_PERMISSION_TYPE,
+      WebsiteSettingsUI::PermissionTypeToUIString(type)),
+      ui::kGdkBlack);
+  gtk_label_set_selectable(GTK_LABEL(label), TRUE);
+  gtk_label_set_line_wrap_mode(GTK_LABEL(label), PANGO_WRAP_WORD_CHAR);
+
+  gtk_box_pack_start(GTK_BOX(widget_), label, FALSE, FALSE, 0);
+
+  // Add the menu button.
+  menu_button_ = gtk_button_new_with_label(
+      UTF16ToUTF8(WebsiteSettingsUI::PermissionActionToUIString(
+          setting, default_setting, source)).c_str());
+  bool user_setting = source == content_settings::SETTING_SOURCE_USER;
+  gtk_widget_set_sensitive(GTK_WIDGET(menu_button_), user_setting);
+  if (user_setting) {
+    ResourceBundle& rb = ResourceBundle::GetSharedInstance();
+    pixbuf = rb.GetNativeImageNamed(IDR_APP_DROPARROW).ToGdkPixbuf();
+    GtkWidget* arrow = gtk_image_new_from_pixbuf(pixbuf);
+    gtk_button_set_image(GTK_BUTTON(menu_button_), arrow);
+    gtk_button_set_image_position(GTK_BUTTON(menu_button_),
+                                  base::i18n::IsRTL() ? GTK_POS_LEFT
+                                                      : GTK_POS_RIGHT);
+  }
+  gtk_button_set_relief(GTK_BUTTON(menu_button_), GTK_RELIEF_NONE);
+  gtk_box_pack_start(GTK_BOX(widget_), menu_button_, FALSE, FALSE, 0);
+
+  menu_model_.reset(new PermissionMenuModel(this, type, default_setting,
+                                            setting));
+  MenuGtk::Delegate* delegate = new MenuGtk::Delegate();
+  menu_.reset(new MenuGtk(delegate, menu_model_.get()));
+  g_signal_connect(menu_button_, "button-press-event",
+                   G_CALLBACK(OnMenuButtonPressEventThunk), this);
 }
 
 PermissionSelector::~PermissionSelector() {
 }
 
-GtkWidget* PermissionSelector::CreateUI() {
-  // Create permission info box.
-  const int kChildSpacing = 4;
-  GtkWidget* hbox = gtk_hbox_new(FALSE, kChildSpacing);
-
-  // Add permission type icon.
-  ContentSetting effective_setting = setting_;
-  if (effective_setting == CONTENT_SETTING_DEFAULT)
-    effective_setting = default_setting_;
-  GdkPixbuf* pixbuf = WebsiteSettingsUI::GetPermissionIcon(
-      type_, effective_setting).ToGdkPixbuf();
-  icon_ = gtk_image_new_from_pixbuf(pixbuf);
-  gtk_box_pack_start(GTK_BOX(hbox), icon_, FALSE, FALSE, 0);
-
-  // Add a label for the permission type.
-  GtkWidget* label = CreateTextLabel(
-      l10n_util::GetStringFUTF8(
-          IDS_WEBSITE_SETTINGS_PERMISSION_TYPE,
-          WebsiteSettingsUI::PermissionTypeToUIString(type_)),
-      theme_service_);
-  gtk_box_pack_start(GTK_BOX(hbox), label, FALSE, FALSE, 0);
-
-  GtkListStore* store =
-      gtk_list_store_new(2, G_TYPE_STRING, G_TYPE_INT);
-  GtkTreeIter iter;
-  // Add option for permission "Global Default" to the combobox model.
-  std::string setting_str = l10n_util::GetStringFUTF8(
-      IDS_WEBSITE_SETTINGS_DEFAULT_PERMISSION_LABEL,
-      WebsiteSettingsUI::PermissionValueToUIString(default_setting_));
-  gtk_list_store_append(store, &iter);
-  gtk_list_store_set(store, &iter, 0, setting_str.c_str(), 1,
-                     CONTENT_SETTING_DEFAULT, -1);
-  GtkWidget* combo_box = gtk_combo_box_new_with_model(GTK_TREE_MODEL(store));
-  // Add option for permission "Allow" to the combobox model.
-  setting_str = l10n_util::GetStringFUTF8(
-      IDS_WEBSITE_SETTINGS_PERMISSION_LABEL,
-      WebsiteSettingsUI::PermissionValueToUIString(CONTENT_SETTING_ALLOW));
-  gtk_list_store_append(store, &iter);
-  gtk_list_store_set(store, &iter, 0, setting_str.c_str(), 1,
-                     CONTENT_SETTING_ALLOW, -1);
-  // The content settings type fullscreen does not support the concept of
-  // blocking.
-  if (type_ != CONTENT_SETTINGS_TYPE_FULLSCREEN) {
-    // Add option for permission "BLOCK" to the combobox model.
-    setting_str = l10n_util::GetStringFUTF8(
-        IDS_WEBSITE_SETTINGS_PERMISSION_LABEL,
-        WebsiteSettingsUI::PermissionValueToUIString(CONTENT_SETTING_BLOCK));
-    gtk_list_store_append(store, &iter);
-    gtk_list_store_set(store, &iter, 0, setting_str.c_str(), 1,
-                       CONTENT_SETTING_BLOCK, -1);
-  }
-  // Remove reference to the store to prevent leaking.
-  g_object_unref(G_OBJECT(store));
-
-  GtkCellRenderer* cell = gtk_cell_renderer_text_new();
-  gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(combo_box), cell, TRUE );
-  gtk_cell_layout_set_attributes(
-      GTK_CELL_LAYOUT(combo_box), cell, "text", 0, NULL);
-
-  // Select the combobox entry for the currently configured permission value.
-  int active = -1;
-  switch (setting_) {
-    case CONTENT_SETTING_DEFAULT: active = 0;
-      break;
-    case CONTENT_SETTING_ALLOW: active = 1;
-      break;
-    case CONTENT_SETTING_BLOCK: active = 2;
-      break;
-    default:
-      NOTREACHED() << "Bad content setting:" << setting_;
-      break;
-  }
-  gtk_combo_box_set_active(GTK_COMBO_BOX(combo_box), active);
-
-  // Add change listener to the combobox.
-  g_signal_connect(combo_box, "changed",
-                   G_CALLBACK(OnPermissionChangedThunk), this);
-  // Once the popup (window) for a combobox is shown, the bubble container
-  // (window) loses it's focus. Therefore it necessary to reset the focus to
-  // the bubble container after the combobox popup is closed.
-  g_signal_connect(combo_box, "notify::popup-shown",
-                   G_CALLBACK(OnComboBoxShownThunk), this);
-  gtk_box_pack_start(GTK_BOX(hbox), combo_box, FALSE, FALSE, 0);
-
-  return hbox;
-}
-
 void PermissionSelector::AddObserver(PermissionSelectorObserver* observer) {
   observer_list_.AddObserver(observer);
 }
 
-void PermissionSelector::OnPermissionChanged(GtkWidget* widget) {
-  // Get the selected setting.
-  GtkTreeIter it;
-  bool has_active = gtk_combo_box_get_active_iter(GTK_COMBO_BOX(widget), &it);
-  DCHECK(has_active);
-  GtkTreeModel* store =
-      GTK_TREE_MODEL(gtk_combo_box_get_model(GTK_COMBO_BOX(widget)));
-  int value = -1;
-  gtk_tree_model_get(store, &it, 1, &value, -1);
-  setting_ = ContentSetting(value);
+ContentSetting PermissionSelector::GetSetting() const {
+  return menu_model_->current_setting();
+}
 
-  // Change the permission icon according the the selected setting.
-  ContentSetting effective_setting = setting_;
+ContentSettingsType PermissionSelector::GetType() const {
+  return menu_model_->type();
+}
+
+gboolean PermissionSelector::OnMenuButtonPressEvent(GtkWidget* button,
+                                                    GdkEventButton* event) {
+  if (event->button != 1)
+    return FALSE;
+  menu_->PopupForWidget(button, event->button, event->time);
+  return TRUE;
+}
+
+void PermissionSelector::OnPermissionSelected() {
+  ContentSetting setting = menu_model_->current_setting();
+
+  // Change the permission icon to reflect the selected setting.
+  ContentSetting effective_setting = setting;
   if (effective_setting == CONTENT_SETTING_DEFAULT)
-    effective_setting = default_setting_;
+    effective_setting = menu_model_->default_setting();
   GdkPixbuf* pixbuf = WebsiteSettingsUI::GetPermissionIcon(
-      type_, effective_setting).ToGdkPixbuf();
+      menu_model_->type(), effective_setting).ToGdkPixbuf();
   gtk_image_set_from_pixbuf(GTK_IMAGE(icon_), pixbuf);
 
+  // Change the text of the menu button to reflect the selected setting.
+  gtk_button_set_label(GTK_BUTTON(menu_button_),
+      UTF16ToUTF8(WebsiteSettingsUI::PermissionActionToUIString(
+          menu_model_->current_setting(),
+          menu_model_->default_setting(),
+          content_settings::SETTING_SOURCE_USER)).c_str());
+
   FOR_EACH_OBSERVER(PermissionSelectorObserver,
                     observer_list_,
                     OnPermissionChanged(this));
 }
-
-void PermissionSelector::OnComboBoxShown(GtkWidget* widget,
-                                         GParamSpec* property) {
-  // GtkComboBox grabs the keyboard and pointer when it displays its popup,
-  // which steals the grabs that BubbleGtk had installed. When the popup is
-  // hidden, we notify BubbleGtk so it can try to reacquire the grabs
-  // (otherwise, GTK won't activate our widgets when the user clicks in them).
-  // When then combobox popup is closed we notify the
-  // |PermissionSelectorObserver|s so that BubbleGtk can grab the keyboard and
-  // pointer.
-  gboolean popup_shown = FALSE;
-  g_object_get(G_OBJECT(GTK_COMBO_BOX(widget)), "popup-shown", &popup_shown,
-               NULL);
-  if (!popup_shown) {
-    FOR_EACH_OBSERVER(PermissionSelectorObserver,
-                      observer_list_,
-                      OnComboboxShown());
-  }
-}