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cef/libcef/browser/menu_model_impl.h

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// Copyright (c) 2012 The Chromium Embedded Framework Authors.
// Portions 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.
#ifndef CEF_LIBCEF_BROWSER_MENU_MODEL_IMPL_H_
#define CEF_LIBCEF_BROWSER_MENU_MODEL_IMPL_H_
#pragma once
#include <vector>
#include "include/cef_menu_model.h"
#include "include/cef_menu_model_delegate.h"
#include "base/threading/platform_thread.h"
#include "third_party/blink/public/mojom/context_menu/context_menu.mojom-forward.h"
#include "ui/base/models/menu_model.h"
#include "ui/gfx/font_list.h"
class CefMenuModelImpl : public CefMenuModel {
public:
class Delegate {
public:
// Perform the action associated with the specified |command_id| and
// optional |event_flags|.
virtual void ExecuteCommand(CefRefPtr<CefMenuModelImpl> source,
int command_id,
cef_event_flags_t event_flags) = 0;
// Called when the user moves the mouse outside the menu and over the owning
// window.
virtual void MouseOutsideMenu(CefRefPtr<CefMenuModelImpl> source,
const gfx::Point& screen_point) {}
// Called on unhandled open/close submenu keyboard commands. |is_rtl| will
// be true if the menu is displaying a right-to-left language.
virtual void UnhandledOpenSubmenu(CefRefPtr<CefMenuModelImpl> source,
bool is_rtl) {}
virtual void UnhandledCloseSubmenu(CefRefPtr<CefMenuModelImpl> source,
bool is_rtl) {}
// Called when the menu is about to show.
virtual void MenuWillShow(CefRefPtr<CefMenuModelImpl> source) = 0;
// Called when the menu has closed.
virtual void MenuClosed(CefRefPtr<CefMenuModelImpl> source) = 0;
// Allows the delegate to modify a menu item label before it's displayed.
virtual bool FormatLabel(CefRefPtr<CefMenuModelImpl> source,
std::u16string& label) = 0;
protected:
virtual ~Delegate() = default;
};
// Either |delegate| or |menu_model_delegate| must be non-nullptr.
// If |delegate| is non-nullptr it must outlive this class.
CefMenuModelImpl(Delegate* delegate,
CefRefPtr<CefMenuModelDelegate> menu_model_delegate,
bool is_submenu);
CefMenuModelImpl(const CefMenuModelImpl&) = delete;
CefMenuModelImpl& operator=(const CefMenuModelImpl&) = delete;
~CefMenuModelImpl() override;
// CefMenuModel methods.
bool IsSubMenu() override;
bool Clear() override;
size_t GetCount() override;
bool AddSeparator() override;
bool AddItem(int command_id, const CefString& label) override;
bool AddCheckItem(int command_id, const CefString& label) override;
bool AddRadioItem(int command_id,
const CefString& label,
int group_id) override;
CefRefPtr<CefMenuModel> AddSubMenu(int command_id,
const CefString& label) override;
bool InsertSeparatorAt(size_t index) override;
bool InsertItemAt(size_t index,
int command_id,
const CefString& label) override;
bool InsertCheckItemAt(size_t index,
int command_id,
const CefString& label) override;
bool InsertRadioItemAt(size_t index,
int command_id,
const CefString& label,
int group_id) override;
CefRefPtr<CefMenuModel> InsertSubMenuAt(size_t index,
int command_id,
const CefString& label) override;
bool Remove(int command_id) override;
bool RemoveAt(size_t index) override;
int GetIndexOf(int command_id) override;
int GetCommandIdAt(size_t index) override;
bool SetCommandIdAt(size_t index, int command_id) override;
CefString GetLabel(int command_id) override;
CefString GetLabelAt(size_t index) override;
bool SetLabel(int command_id, const CefString& label) override;
bool SetLabelAt(size_t index, const CefString& label) override;
MenuItemType GetType(int command_id) override;
MenuItemType GetTypeAt(size_t index) override;
int GetGroupId(int command_id) override;
int GetGroupIdAt(size_t index) override;
bool SetGroupId(int command_id, int group_id) override;
bool SetGroupIdAt(size_t index, int group_id) override;
CefRefPtr<CefMenuModel> GetSubMenu(int command_id) override;
CefRefPtr<CefMenuModel> GetSubMenuAt(size_t index) override;
bool IsVisible(int command_id) override;
bool IsVisibleAt(size_t index) override;
bool SetVisible(int command_id, bool visible) override;
bool SetVisibleAt(size_t index, bool visible) override;
bool IsEnabled(int command_id) override;
bool IsEnabledAt(size_t index) override;
bool SetEnabled(int command_id, bool enabled) override;
bool SetEnabledAt(size_t index, bool enabled) override;
bool IsChecked(int command_id) override;
bool IsCheckedAt(size_t index) override;
bool SetChecked(int command_id, bool checked) override;
bool SetCheckedAt(size_t index, bool checked) override;
bool HasAccelerator(int command_id) override;
bool HasAcceleratorAt(size_t index) override;
bool SetAccelerator(int command_id,
int key_code,
bool shift_pressed,
bool ctrl_pressed,
bool alt_pressed) override;
bool SetAcceleratorAt(size_t index,
int key_code,
bool shift_pressed,
bool ctrl_pressed,
bool alt_pressed) override;
bool RemoveAccelerator(int command_id) override;
bool RemoveAcceleratorAt(size_t index) override;
bool GetAccelerator(int command_id,
int& key_code,
bool& shift_pressed,
bool& ctrl_pressed,
bool& alt_pressed) override;
bool GetAcceleratorAt(size_t index,
int& key_code,
bool& shift_pressed,
bool& ctrl_pressed,
bool& alt_pressed) override;
bool SetColor(int command_id,
cef_menu_color_type_t color_type,
cef_color_t color) override;
bool SetColorAt(int index,
cef_menu_color_type_t color_type,
cef_color_t color) override;
bool GetColor(int command_id,
cef_menu_color_type_t color_type,
cef_color_t& color) override;
bool GetColorAt(int index,
cef_menu_color_type_t color_type,
cef_color_t& color) override;
bool SetFontList(int command_id, const CefString& font_list) override;
bool SetFontListAt(int index, const CefString& font_list) override;
// Callbacks from the ui::MenuModel implementation.
void ActivatedAt(size_t index, cef_event_flags_t event_flags);
void MouseOutsideMenu(const gfx::Point& screen_point);
void UnhandledOpenSubmenu(bool is_rtl);
void UnhandledCloseSubmenu(bool is_rtl);
bool GetTextColor(size_t index,
bool is_accelerator,
bool is_hovered,
SkColor* override_color) const;
bool GetBackgroundColor(size_t index,
bool is_hovered,
SkColor* override_color) const;
void MenuWillShow();
void MenuWillClose();
std::u16string GetFormattedLabelAt(size_t index);
const gfx::FontList* GetLabelFontListAt(size_t index) const;
// Verify that only a single reference exists to all CefMenuModelImpl objects.
bool VerifyRefCount();
// Helper for adding custom menu items originating from the renderer process.
void AddMenuItem(const blink::mojom::CustomContextMenuItem& menu_item);
ui::MenuModel* model() const { return model_.get(); }
// Used when created via CefMenuManager.
Delegate* delegate() const { return delegate_; }
void set_delegate(Delegate* delegate) { delegate_ = delegate; }
// Used for menus run via CefWindowImpl::ShowMenu to provide more accurate
// menu close notification.
void set_auto_notify_menu_closed(bool val) { auto_notify_menu_closed_ = val; }
void NotifyMenuClosed();
private:
struct Item;
using ItemVector = std::vector<Item>;
// Functions for inserting items into |items_|.
void AppendItem(const Item& item);
void InsertItemAt(const Item& item, size_t index);
void ValidateItem(const Item& item);
// Notify the delegate asynchronously.
void OnMouseOutsideMenu(const gfx::Point& screen_point);
void OnUnhandledOpenSubmenu(bool is_rtl);
void OnUnhandledCloseSubmenu(bool is_rtl);
void OnMenuClosed();
// Verify that the object is being accessed from the correct thread.
bool VerifyContext();
base::PlatformThreadId supported_thread_id_;
// Used when created via CefMenuManager.
Delegate* delegate_;
// Used when created via CefMenuModel::CreateMenuModel().
CefRefPtr<CefMenuModelDelegate> menu_model_delegate_;
const bool is_submenu_;
ItemVector items_;
std::unique_ptr<ui::MenuModel> model_;
// Style information.
cef_color_t default_colors_[CEF_MENU_COLOR_COUNT] = {0};
gfx::FontList default_font_list_;
bool has_default_font_list_ = false;
bool auto_notify_menu_closed_ = true;
IMPLEMENT_REFCOUNTING(CefMenuModelImpl);
};
#endif // CEF_LIBCEF_BROWSER_MENU_MODEL_IMPL_H_
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