electron/atom/browser/ui/views/menu_bar.h
Heilig Benedek 894ae1b3f5 refactor: Improve accessibility of menus (#15302)
* refactor: improve menubar keyboard accessibility

* fix: create a temporary widget for tray icon context menu

* fix: focus menu bar with Alt when autohide is off

* fix: make menu bar focus work more like the native menus

* fix: only focus menu bar if it's not already focused

* fix: track accelerator registration to avoid duplicates

* docs: add docs for & notation in app menu item names

* fix: only try to activate accelerator if it's registered

* fix: add friend to monitor window focus change

* style: add <memory> include
2018-10-29 13:08:46 -05:00

113 lines
3.2 KiB
C++

// Copyright (c) 2014 GitHub, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#ifndef ATOM_BROWSER_UI_VIEWS_MENU_BAR_H_
#define ATOM_BROWSER_UI_VIEWS_MENU_BAR_H_
#include <memory>
#include "atom/browser/ui/atom_menu_model.h"
#include "atom/browser/ui/views/menu_delegate.h"
#include "atom/browser/ui/views/root_view.h"
#include "ui/views/accessible_pane_view.h"
#include "ui/views/controls/button/menu_button_listener.h"
#include "ui/views/focus/focus_manager.h"
#include "ui/views/view.h"
namespace views {
class MenuButton;
}
namespace atom {
class MenuBarColorUpdater : public views::FocusChangeListener {
public:
explicit MenuBarColorUpdater(MenuBar* menu_bar);
~MenuBarColorUpdater() override;
void OnDidChangeFocus(views::View* focused_before,
views::View* focused_now) override;
void OnWillChangeFocus(views::View* focused_before,
views::View* focused_now) override {}
private:
MenuBar* menu_bar_;
};
class MenuBar : public views::AccessiblePaneView,
public views::MenuButtonListener,
public atom::MenuDelegate::Observer {
public:
static const char kViewClassName[];
explicit MenuBar(RootView* window);
~MenuBar() override;
// Replaces current menu with a new one.
void SetMenu(AtomMenuModel* menu_model);
// Shows underline under accelerators.
void SetAcceleratorVisibility(bool visible);
// Returns true if the submenu has accelerator |key|
bool HasAccelerator(base::char16 key);
// Shows the submenu whose accelerator is |key|.
void ActivateAccelerator(base::char16 key);
// Returns there are how many items in the root menu.
int GetItemCount() const;
// Get the menu under specified screen point.
bool GetMenuButtonFromScreenPoint(const gfx::Point& point,
AtomMenuModel** menu_model,
views::MenuButton** button);
// atom::MenuDelegate::Observer:
void OnBeforeExecuteCommand() override;
void OnMenuClosed() override;
// views::AccessiblePaneView:
bool AcceleratorPressed(const ui::Accelerator& accelerator) override;
bool SetPaneFocus(views::View* initial_focus) override;
void RemovePaneFocus() override;
protected:
// views::View:
const char* GetClassName() const override;
// views::MenuButtonListener:
void OnMenuButtonClicked(views::MenuButton* source,
const gfx::Point& point,
const ui::Event* event) override;
void OnNativeThemeChanged(const ui::NativeTheme* theme) override;
private:
friend class MenuBarColorUpdater;
void RebuildChildren();
void UpdateViewColors();
void RefreshColorCache(const ui::NativeTheme* theme = nullptr);
SkColor background_color_;
#if defined(USE_X11)
SkColor enabled_color_;
SkColor disabled_color_;
#endif
RootView* window_ = nullptr;
AtomMenuModel* menu_model_ = nullptr;
View* FindAccelChild(base::char16 key);
bool has_focus_ = true;
std::unique_ptr<MenuBarColorUpdater> color_updater_;
DISALLOW_COPY_AND_ASSIGN(MenuBar);
};
} // namespace atom
#endif // ATOM_BROWSER_UI_VIEWS_MENU_BAR_H_