131 lines
4.6 KiB
C++
131 lines
4.6 KiB
C++
// Copyright (c) 2017 The Chromium Embedded Framework Authors. All rights
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// reserved. Use of this source code is governed by a BSD-style license that
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// can be found in the LICENSE file.
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#ifndef CEF_TESTS_CEFCLIENT_BROWSER_VIEWS_MENU_BAR_H_
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#define CEF_TESTS_CEFCLIENT_BROWSER_VIEWS_MENU_BAR_H_
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#pragma once
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#include <map>
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#include <string>
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#include <vector>
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#include "include/cef_menu_model.h"
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#include "include/cef_menu_model_delegate.h"
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#include "include/views/cef_menu_button.h"
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#include "include/views/cef_menu_button_delegate.h"
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#include "include/views/cef_panel.h"
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namespace client {
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// Implements a menu bar which is composed of CefMenuButtons positioned in a
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// row with automatic switching between them via mouse/keyboard. All methods
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// must be called on the browser process UI thread.
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class ViewsMenuBar : public CefMenuButtonDelegate,
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public CefMenuModelDelegate,
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public CefPanelDelegate {
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public:
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// Delegate methods will be called on the browser process UI thread.
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class Delegate {
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public:
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// Called when a menu command is selected.
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virtual void MenuBarExecuteCommand(CefRefPtr<CefMenuModel> menu_model,
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int command_id,
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cef_event_flags_t event_flags) = 0;
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protected:
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virtual ~Delegate() = default;
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};
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// |delegate| must outlive this object.
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// |menu_id_start| is the ID for the first CefMenuButton in the bar. An ID
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// range starting with |menu_id_start| and extending for a reasonable distance
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// should be reserved in the client for MenuBar usage.
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ViewsMenuBar(Delegate* delegate, int menu_id_start, bool use_bottom_controls);
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// Returns true if |menu_id| exists in the menu bar.
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bool HasMenuId(int menu_id) const;
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// Returns the CefPanel that represents the menu bar.
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CefRefPtr<CefPanel> GetMenuPanel();
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// Create a new menu with the specified |label|. If |menu_id| is non-nullptr
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// it will be populated with the new menu ID.
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CefRefPtr<CefMenuModel> CreateMenuModel(const CefString& label, int* menu_id);
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// Returns the menu with the specified |menu_id|, or nullptr if no such menu
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// exists.
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CefRefPtr<CefMenuModel> GetMenuModel(int menu_id) const;
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// Assign or remove focus from the menu bar.
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// Focus is assigned to the menu bar by ViewsWindow::OnKeyEvent when the ALT
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// key is pressed. Focus is removed from the menu bar by ViewsWindow::OnFocus
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// when a control not in the menu bar gains focus.
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void SetMenuFocusable(bool focusable);
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// Key events forwarded from ViewsWindow::OnKeyEvent when the menu bar has
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// focus.
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bool OnKeyEvent(const CefKeyEvent& event);
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// Reset menu bar state.
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void Reset();
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protected:
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// CefButtonDelegate methods:
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void OnButtonPressed(CefRefPtr<CefButton> button) override {}
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// CefMenuButtonDelegate methods:
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void OnMenuButtonPressed(
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CefRefPtr<CefMenuButton> menu_button,
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const CefPoint& screen_point,
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CefRefPtr<CefMenuButtonPressedLock> button_pressed_lock) override;
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// CefMenuModelDelegate methods:
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void ExecuteCommand(CefRefPtr<CefMenuModel> menu_model,
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int command_id,
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cef_event_flags_t event_flags) override;
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void MouseOutsideMenu(CefRefPtr<CefMenuModel> menu_model,
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const CefPoint& screen_point) override;
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void UnhandledOpenSubmenu(CefRefPtr<CefMenuModel> menu_model,
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bool is_rtl) override;
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void UnhandledCloseSubmenu(CefRefPtr<CefMenuModel> menu_model,
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bool is_rtl) override;
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void MenuClosed(CefRefPtr<CefMenuModel> menu_model) override;
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// CefViewDelegate methods:
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void OnThemeChanged(CefRefPtr<CefView> view) override;
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private:
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// Creates the menu panel if it doesn't already exist.
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void EnsureMenuPanel();
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// Returns the ID for the currently active menu, or -1 if no menu is currently
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// active.
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int GetActiveMenuId();
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// Triggers the menu at the specified |offset| from the currently active menu.
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void TriggerNextMenu(int offset);
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// Triggers the specified MenuButton |button|.
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void TriggerMenuButton(CefRefPtr<CefView> button);
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Delegate* delegate_; // Not owned by this object.
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const int id_start_;
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const bool use_bottom_controls_;
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int id_next_;
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CefRefPtr<CefPanel> panel_;
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std::vector<CefRefPtr<CefMenuModel>> models_;
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bool last_nav_with_keyboard_ = false;
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// Map of mnemonic to MenuButton ID.
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typedef std::map<char16_t, int> MnemonicMap;
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MnemonicMap mnemonics_;
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IMPLEMENT_REFCOUNTING(ViewsMenuBar);
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DISALLOW_COPY_AND_ASSIGN(ViewsMenuBar);
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};
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} // namespace client
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#endif // CEF_TESTS_CEFCLIENT_BROWSER_VIEWS_MENU_BAR_H_
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