143 lines
4.4 KiB
C++
143 lines
4.4 KiB
C++
// Copyright (c) 2014 GitHub, Inc.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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#include "shell/browser/ui/views/menu_delegate.h"
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#include <memory>
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#include "base/task/post_task.h"
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#include "content/public/browser/browser_task_traits.h"
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#include "content/public/browser/browser_thread.h"
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#include "shell/browser/ui/views/menu_bar.h"
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#include "shell/browser/ui/views/menu_model_adapter.h"
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#include "ui/views/controls/button/menu_button.h"
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#include "ui/views/controls/menu/menu_item_view.h"
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#include "ui/views/controls/menu/menu_runner.h"
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#include "ui/views/widget/widget.h"
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namespace electron {
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MenuDelegate::MenuDelegate(MenuBar* menu_bar)
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: menu_bar_(menu_bar), id_(-1), hold_first_switch_(false) {}
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MenuDelegate::~MenuDelegate() = default;
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void MenuDelegate::RunMenu(ElectronMenuModel* model,
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views::Button* button,
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ui::MenuSourceType source_type) {
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gfx::Point screen_loc;
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views::View::ConvertPointToScreen(button, &screen_loc);
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// Subtract 1 from the height to make the popup flush with the button border.
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gfx::Rect bounds(screen_loc.x(), screen_loc.y(), button->width(),
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button->height() - 1);
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if (source_type == ui::MENU_SOURCE_KEYBOARD) {
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hold_first_switch_ = true;
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}
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id_ = button->tag();
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adapter_ = std::make_unique<MenuModelAdapter>(model);
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views::MenuItemView* item = new views::MenuItemView(this);
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static_cast<MenuModelAdapter*>(adapter_.get())->BuildMenu(item);
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menu_runner_ = std::make_unique<views::MenuRunner>(
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item, views::MenuRunner::CONTEXT_MENU | views::MenuRunner::HAS_MNEMONICS);
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menu_runner_->RunMenuAt(
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button->GetWidget()->GetTopLevelWidget(),
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static_cast<views::MenuButton*>(button)->button_controller(), bounds,
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views::MenuAnchorPosition::kTopRight, source_type);
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}
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void MenuDelegate::ExecuteCommand(int id) {
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for (Observer& obs : observers_)
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obs.OnBeforeExecuteCommand();
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adapter_->ExecuteCommand(id);
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}
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void MenuDelegate::ExecuteCommand(int id, int mouse_event_flags) {
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for (Observer& obs : observers_)
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obs.OnBeforeExecuteCommand();
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adapter_->ExecuteCommand(id, mouse_event_flags);
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}
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bool MenuDelegate::IsTriggerableEvent(views::MenuItemView* source,
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const ui::Event& e) {
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return adapter_->IsTriggerableEvent(source, e);
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}
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bool MenuDelegate::GetAccelerator(int id, ui::Accelerator* accelerator) const {
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return adapter_->GetAccelerator(id, accelerator);
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}
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base::string16 MenuDelegate::GetLabel(int id) const {
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return adapter_->GetLabel(id);
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}
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void MenuDelegate::GetLabelStyle(int id, LabelStyle* style) const {
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return adapter_->GetLabelStyle(id, style);
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}
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bool MenuDelegate::IsCommandEnabled(int id) const {
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return adapter_->IsCommandEnabled(id);
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}
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bool MenuDelegate::IsCommandVisible(int id) const {
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return adapter_->IsCommandVisible(id);
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}
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bool MenuDelegate::IsItemChecked(int id) const {
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return adapter_->IsItemChecked(id);
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}
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void MenuDelegate::WillShowMenu(views::MenuItemView* menu) {
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adapter_->WillShowMenu(menu);
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}
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void MenuDelegate::WillHideMenu(views::MenuItemView* menu) {
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adapter_->WillHideMenu(menu);
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}
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void MenuDelegate::OnMenuClosed(views::MenuItemView* menu) {
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for (Observer& obs : observers_)
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obs.OnMenuClosed();
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// Only switch to new menu when current menu is closed.
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if (button_to_open_)
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button_to_open_->Activate(nullptr);
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delete this;
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}
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views::MenuItemView* MenuDelegate::GetSiblingMenu(
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views::MenuItemView* menu,
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const gfx::Point& screen_point,
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views::MenuAnchorPosition* anchor,
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bool* has_mnemonics,
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views::MenuButton**) {
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if (hold_first_switch_) {
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hold_first_switch_ = false;
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return nullptr;
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}
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// TODO(zcbenz): We should follow Chromium's logics on implementing the
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// sibling menu switches, this code is almost a hack.
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views::MenuButton* button;
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ElectronMenuModel* model;
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if (menu_bar_->GetMenuButtonFromScreenPoint(screen_point, &model, &button) &&
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button->tag() != id_) {
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bool switch_in_progress = !!button_to_open_;
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// Always update target to open.
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button_to_open_ = button;
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// Switching menu asyncnously to avoid crash.
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if (!switch_in_progress) {
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base::PostTask(FROM_HERE, {content::BrowserThread::UI},
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base::BindOnce(&views::MenuRunner::Cancel,
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base::Unretained(menu_runner_.get())));
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}
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}
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return nullptr;
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}
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} // namespace electron
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