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// 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/tab_contents/render_view_context_menu_gtk.h"
#include <gtk/gtk.h>
#include "base/string_util.h"
#include "base/utf_string_conversions.h"
#include "chrome/app/chrome_command_ids.h"
#include "chrome/browser/ui/gtk/gtk_util.h"
#include "content/public/browser/render_widget_host_view.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/context_menu_params.h"
#include "grit/generated_resources.h"
#include "ui/base/gtk/menu_label_accelerator_util.h"
#include "ui/base/l10n/l10n_util.h"
using content::WebContents;
namespace {
// A callback function for gtk_container_foreach(). This callback just checks
// the menu ID and set the given user data if it is same as the specified ID.
struct GtkWidgetAtParam {
int index;
GtkWidget* widget;
};
void GtkWidgetAt(GtkWidget* widget, gpointer user_data) {
GtkWidgetAtParam* param = reinterpret_cast<GtkWidgetAtParam*>(user_data);
gpointer data = g_object_get_data(G_OBJECT(widget), "menu-id");
if (data && (GPOINTER_TO_INT(data) - 1) == param->index &&
GTK_IS_MENU_ITEM(widget)) {
param->widget = widget;
}
}
// Retrieves a GtkWidget which has the specified command_id. This function
// traverses the given |model| in the depth-first order. When this function
// finds an item whose command_id is the same as the given |command_id|, it
// returns the GtkWidget associated with the item. This function emulates
// views::MenuItemViews::GetMenuItemByID() for GTK.
GtkWidget* GetMenuItemByID(ui::MenuModel* model,
GtkWidget* menu,
int command_id) {
if (!menu)
return NULL;
for (int i = 0; i < model->GetItemCount(); ++i) {
if (model->GetCommandIdAt(i) == command_id) {
GtkWidgetAtParam param;
param.index = i;
param.widget = NULL;
gtk_container_foreach(GTK_CONTAINER(menu), &GtkWidgetAt, ¶m);
return param.widget;
}
ui::MenuModel* submenu = model->GetSubmenuModelAt(i);
if (submenu) {
GtkWidget* subitem = GetMenuItemByID(
submenu,
gtk_menu_item_get_submenu(GTK_MENU_ITEM(menu)),
command_id);
if (subitem)
return subitem;
}
}
return NULL;
}
} // namespace
RenderViewContextMenuGtk::RenderViewContextMenuGtk(
WebContents* web_contents,
const content::ContextMenuParams& params,
content::RenderWidgetHostView* view)
: RenderViewContextMenu(web_contents, params) {
GdkEventButton* event = view->GetLastMouseDown();
triggering_event_time_ = event ? event->time : GDK_CURRENT_TIME;
}
RenderViewContextMenuGtk::~RenderViewContextMenuGtk() {
}
void RenderViewContextMenuGtk::PlatformInit() {
menu_gtk_.reset(new MenuGtk(this, &menu_model_));
if (params_.is_editable) {
content::RenderWidgetHostView* rwhv =
source_web_contents_->GetRenderWidgetHostView();
if (rwhv) {
MenuGtk* menu = menu_gtk_.get();
gboolean show_input_method_menu = TRUE;
g_object_get(
gtk_widget_get_settings(GTK_WIDGET(rwhv->GetNativeView())),
"gtk-show-input-method-menu", &show_input_method_menu, NULL);
if (!show_input_method_menu)
return;
std::string label = ui::ConvertAcceleratorsFromWindowsStyle(
l10n_util::GetStringUTF8(IDS_CONTENT_CONTEXT_INPUT_METHODS_MENU));
GtkWidget* menuitem = gtk_menu_item_new_with_mnemonic(label.c_str());
GtkWidget* submenu = rwhv->BuildInputMethodsGtkMenu();
gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), submenu);
menu->AppendSeparator();
menu->AppendMenuItem(IDC_INPUT_METHODS_MENU, menuitem);
}
}
}
void RenderViewContextMenuGtk::PlatformCancel() {
menu_gtk_->Cancel();
}
bool RenderViewContextMenuGtk::GetAcceleratorForCommandId(
int command_id,
ui::Accelerator* accelerator) {
return false;
}
void RenderViewContextMenuGtk::Popup(const gfx::Point& point) {
menu_gtk_->PopupAsContext(point, triggering_event_time_);
}
bool RenderViewContextMenuGtk::AlwaysShowIconForCmd(int command_id) const {
return command_id >= IDC_EXTENSIONS_CONTEXT_CUSTOM_FIRST &&
command_id <= IDC_EXTENSIONS_CONTEXT_CUSTOM_LAST;
}
void RenderViewContextMenuGtk::UpdateMenuItem(int command_id,
bool enabled,
bool hidden,
const string16& title) {
GtkWidget* item = GetMenuItemByID(&menu_model_, menu_gtk_->widget(),
command_id);
if (!item || !GTK_IS_MENU_ITEM(item))
return;
// Enable (or disable) the menu item and updates its text.
gtk_widget_set_sensitive(item, enabled);
if (hidden)
gtk_widget_hide(item);
else
gtk_widget_show(item);
gtk_menu_item_set_label(GTK_MENU_ITEM(item), UTF16ToUTF8(title).c_str());
}
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