electron/atom/browser/ui/views/menu_delegate.cc
2014-10-13 11:03:56 +08:00

124 lines
3.5 KiB
C++

// Copyright (c) 2014 GitHub, Inc. All rights reserved.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#include "atom/browser/ui/views/menu_delegate.h"
#include "atom/browser/ui/views/menu_bar.h"
#include "base/stl_util.h"
#include "ui/views/controls/button/menu_button.h"
#include "ui/views/controls/menu/menu_item_view.h"
#include "ui/views/controls/menu/menu_model_adapter.h"
#include "ui/views/controls/menu/menu_runner.h"
#include "ui/views/widget/widget.h"
namespace atom {
MenuDelegate::MenuDelegate(MenuBar* menu_bar)
: menu_bar_(menu_bar),
id_(-1),
items_(menu_bar_->GetItemCount()),
delegates_(menu_bar_->GetItemCount()) {
}
MenuDelegate::~MenuDelegate() {
STLDeleteElements(&delegates_);
}
void MenuDelegate::RunMenu(ui::MenuModel* model, views::MenuButton* button) {
gfx::Point screen_loc;
views::View::ConvertPointToScreen(button, &screen_loc);
// Subtract 1 from the height to make the popup flush with the button border.
gfx::Rect bounds(screen_loc.x(), screen_loc.y(), button->width(),
button->height() - 1);
id_ = button->tag();
views::MenuItemView* item = BuildMenu(model);
views::MenuRunner menu_runner(item, views::MenuRunner::CONTEXT_MENU);
ignore_result(menu_runner.RunMenuAt(
button->GetWidget()->GetTopLevelWidget(),
button,
bounds,
views::MENU_ANCHOR_TOPRIGHT,
ui::MENU_SOURCE_MOUSE));
}
views::MenuItemView* MenuDelegate::BuildMenu(ui::MenuModel* model) {
DCHECK_GE(id_, 0);
if (!items_[id_]) {
views::MenuModelAdapter* delegate = new views::MenuModelAdapter(model);
delegates_[id_] = delegate;
views::MenuItemView* item = new views::MenuItemView(this);
delegate->BuildMenu(item);
items_[id_] = item;
}
return items_[id_];
}
void MenuDelegate::ExecuteCommand(int id) {
delegate()->ExecuteCommand(id);
}
void MenuDelegate::ExecuteCommand(int id, int mouse_event_flags) {
delegate()->ExecuteCommand(id, mouse_event_flags);
}
bool MenuDelegate::IsTriggerableEvent(views::MenuItemView* source,
const ui::Event& e) {
return delegate()->IsTriggerableEvent(source, e);
}
bool MenuDelegate::GetAccelerator(int id, ui::Accelerator* accelerator) const {
return delegate()->GetAccelerator(id, accelerator);
}
base::string16 MenuDelegate::GetLabel(int id) const {
return delegate()->GetLabel(id);
}
const gfx::FontList* MenuDelegate::GetLabelFontList(int id) const {
return delegate()->GetLabelFontList(id);
}
bool MenuDelegate::IsCommandEnabled(int id) const {
return delegate()->IsCommandEnabled(id);
}
bool MenuDelegate::IsItemChecked(int id) const {
return delegate()->IsItemChecked(id);
}
void MenuDelegate::SelectionChanged(views::MenuItemView* menu) {
delegate()->SelectionChanged(menu);
}
void MenuDelegate::WillShowMenu(views::MenuItemView* menu) {
delegate()->WillShowMenu(menu);
}
void MenuDelegate::WillHideMenu(views::MenuItemView* menu) {
delegate()->WillHideMenu(menu);
}
views::MenuItemView* MenuDelegate::GetSiblingMenu(
views::MenuItemView* menu,
const gfx::Point& screen_point,
views::MenuAnchorPosition* anchor,
bool* has_mnemonics,
views::MenuButton** button) {
ui::MenuModel* model;
if (!menu_bar_->GetMenuButtonFromScreenPoint(screen_point, &model, button))
return NULL;
*anchor = views::MENU_ANCHOR_TOPLEFT;
*has_mnemonics = true;
id_ = (*button)->tag();
return BuildMenu(model);
}
} // namespace atom