707 lines
18 KiB
C++
707 lines
18 KiB
C++
// Copyright (c) 2012 The Chromium Embedded Framework Authors.
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// Portions copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "libcef/browser/menu_model_impl.h"
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#include <vector>
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#include "base/bind.h"
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#include "base/logging.h"
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#include "base/message_loop/message_loop.h"
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#include "ui/base/accelerators/accelerator.h"
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namespace {
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const int kSeparatorId = -1;
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// A simple MenuModel implementation that delegates to CefMenuModelImpl.
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class CefSimpleMenuModel : public ui::MenuModel {
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public:
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// The Delegate can be NULL, though if it is items can't be checked or
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// disabled.
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explicit CefSimpleMenuModel(CefMenuModelImpl* impl)
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: impl_(impl),
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menu_model_delegate_(NULL) {
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}
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virtual ~CefSimpleMenuModel() {
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}
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// MenuModel methods.
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virtual bool HasIcons() const OVERRIDE {
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return false;
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}
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virtual int GetItemCount() const OVERRIDE {
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return impl_->GetCount();
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}
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virtual ItemType GetTypeAt(int index) const OVERRIDE {
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switch (impl_->GetTypeAt(index)) {
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case MENUITEMTYPE_COMMAND:
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return TYPE_COMMAND;
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case MENUITEMTYPE_CHECK:
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return TYPE_CHECK;
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case MENUITEMTYPE_RADIO:
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return TYPE_RADIO;
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case MENUITEMTYPE_SEPARATOR:
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return TYPE_SEPARATOR;
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case MENUITEMTYPE_SUBMENU:
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return TYPE_SUBMENU;
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default:
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NOTREACHED();
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return TYPE_COMMAND;
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}
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}
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virtual ui::MenuSeparatorType GetSeparatorTypeAt(int index) const OVERRIDE {
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return ui::NORMAL_SEPARATOR;
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}
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virtual int GetCommandIdAt(int index) const OVERRIDE {
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return impl_->GetCommandIdAt(index);
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}
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virtual base::string16 GetLabelAt(int index) const OVERRIDE {
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return impl_->GetFormattedLabelAt(index);
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}
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virtual bool IsItemDynamicAt(int index) const OVERRIDE {
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return false;
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}
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virtual bool GetAcceleratorAt(int index,
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ui::Accelerator* accelerator) const OVERRIDE {
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int key_code = 0;
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bool shift_pressed = false;
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bool ctrl_pressed = false;
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bool alt_pressed = false;
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if (impl_->GetAcceleratorAt(index, key_code, shift_pressed, ctrl_pressed,
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alt_pressed)) {
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int modifiers = 0;
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if (shift_pressed)
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modifiers |= ui::EF_SHIFT_DOWN;
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if (ctrl_pressed)
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modifiers |= ui::EF_CONTROL_DOWN;
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if (alt_pressed)
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modifiers |= ui::EF_ALT_DOWN;
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*accelerator = ui::Accelerator(static_cast<ui::KeyboardCode>(key_code),
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modifiers);
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return true;
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}
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return false;
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}
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virtual bool IsItemCheckedAt(int index) const OVERRIDE {
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return impl_->IsCheckedAt(index);
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}
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virtual int GetGroupIdAt(int index) const OVERRIDE {
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return impl_->GetGroupIdAt(index);
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}
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virtual bool GetIconAt(int index, gfx::Image* icon) OVERRIDE {
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return false;
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}
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virtual ui::ButtonMenuItemModel* GetButtonMenuItemAt(
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int index) const OVERRIDE {
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return NULL;
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}
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virtual bool IsEnabledAt(int index) const OVERRIDE {
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return impl_->IsEnabledAt(index);
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}
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virtual bool IsVisibleAt(int index) const OVERRIDE {
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return impl_->IsVisibleAt(index);
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}
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virtual void HighlightChangedTo(int index) OVERRIDE {
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}
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virtual void ActivatedAt(int index) OVERRIDE {
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ActivatedAt(index, 0);
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}
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virtual void ActivatedAt(int index, int event_flags) OVERRIDE {
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impl_->ActivatedAt(index, static_cast<cef_event_flags_t>(event_flags));
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}
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virtual MenuModel* GetSubmenuModelAt(int index) const OVERRIDE {
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CefRefPtr<CefMenuModel> submenu = impl_->GetSubMenuAt(index);
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if (submenu.get())
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return static_cast<CefMenuModelImpl*>(submenu.get())->model();
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return NULL;
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}
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virtual void MenuWillShow() OVERRIDE {
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impl_->MenuWillShow();
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}
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virtual void MenuClosed() OVERRIDE {
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impl_->MenuClosed();
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}
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virtual void SetMenuModelDelegate(
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ui::MenuModelDelegate* menu_model_delegate) OVERRIDE {
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menu_model_delegate_ = menu_model_delegate;
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}
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virtual ui::MenuModelDelegate* GetMenuModelDelegate() const OVERRIDE {
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return menu_model_delegate_;
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}
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private:
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CefMenuModelImpl* impl_;
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ui::MenuModelDelegate* menu_model_delegate_;
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DISALLOW_COPY_AND_ASSIGN(CefSimpleMenuModel);
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};
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} // namespace
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struct CefMenuModelImpl::Item {
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Item(cef_menu_item_type_t type,
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int command_id,
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const CefString& label,
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int group_id)
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: type_(type),
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command_id_(command_id),
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label_(label),
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group_id_(group_id),
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enabled_(true),
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visible_(true),
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checked_(false),
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has_accelerator_(false),
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key_code_(0),
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shift_pressed_(false),
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ctrl_pressed_(false),
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alt_pressed_(false) {
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}
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// Basic information.
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cef_menu_item_type_t type_;
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int command_id_;
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CefString label_;
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int group_id_;
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CefRefPtr<CefMenuModelImpl> submenu_;
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// State information.
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bool enabled_;
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bool visible_;
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bool checked_;
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// Accelerator information.
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bool has_accelerator_;
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int key_code_;
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bool shift_pressed_;
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bool ctrl_pressed_;
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bool alt_pressed_;
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};
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CefMenuModelImpl::CefMenuModelImpl(Delegate* delegate)
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: supported_thread_id_(base::PlatformThread::CurrentId()),
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delegate_(delegate) {
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model_.reset(new CefSimpleMenuModel(this));
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}
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CefMenuModelImpl::~CefMenuModelImpl() {
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}
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bool CefMenuModelImpl::Clear() {
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if (!VerifyContext())
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return false;
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items_.clear();
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return true;
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}
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int CefMenuModelImpl::GetCount() {
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if (!VerifyContext())
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return 0;
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return static_cast<int>(items_.size());
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}
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bool CefMenuModelImpl::AddSeparator() {
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if (!VerifyContext())
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return false;
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AppendItem(Item(MENUITEMTYPE_SEPARATOR, kSeparatorId, CefString(), -1));
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return true;
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}
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bool CefMenuModelImpl::AddItem(int command_id, const CefString& label) {
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if (!VerifyContext())
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return false;
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AppendItem(Item(MENUITEMTYPE_COMMAND, command_id, label, -1));
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return true;
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}
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bool CefMenuModelImpl::AddCheckItem(int command_id, const CefString& label) {
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if (!VerifyContext())
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return false;
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AppendItem(Item(MENUITEMTYPE_CHECK, command_id, label, -1));
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return true;
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}
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bool CefMenuModelImpl::AddRadioItem(int command_id, const CefString& label,
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int group_id) {
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if (!VerifyContext())
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return false;
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AppendItem(Item(MENUITEMTYPE_RADIO, command_id, label, group_id));
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return true;
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}
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CefRefPtr<CefMenuModel> CefMenuModelImpl::AddSubMenu(int command_id,
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const CefString& label) {
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if (!VerifyContext())
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return NULL;
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Item item(MENUITEMTYPE_SUBMENU, command_id, label, -1);
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item.submenu_ = new CefMenuModelImpl(delegate_);
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AppendItem(item);
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return item.submenu_.get();
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}
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bool CefMenuModelImpl::InsertSeparatorAt(int index) {
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if (!VerifyContext())
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return false;
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InsertItemAt(Item(MENUITEMTYPE_SEPARATOR, kSeparatorId, CefString(), -1),
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index);
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return true;
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}
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bool CefMenuModelImpl::InsertItemAt(int index, int command_id,
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const CefString& label) {
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if (!VerifyContext())
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return false;
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InsertItemAt(Item(MENUITEMTYPE_COMMAND, command_id, label, -1), index);
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return true;
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}
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bool CefMenuModelImpl::InsertCheckItemAt(int index, int command_id,
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const CefString& label) {
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if (!VerifyContext())
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return false;
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InsertItemAt(Item(MENUITEMTYPE_CHECK, command_id, label, -1), index);
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return true;
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}
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bool CefMenuModelImpl::InsertRadioItemAt(int index, int command_id,
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const CefString& label, int group_id) {
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if (!VerifyContext())
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return false;
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InsertItemAt(Item(MENUITEMTYPE_RADIO, command_id, label, -1), index);
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return true;
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}
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CefRefPtr<CefMenuModel> CefMenuModelImpl::InsertSubMenuAt(
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int index, int command_id, const CefString& label) {
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if (!VerifyContext())
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return NULL;
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Item item(MENUITEMTYPE_SUBMENU, command_id, label, -1);
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item.submenu_ = new CefMenuModelImpl(delegate_);
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InsertItemAt(item, index);
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return item.submenu_.get();
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}
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bool CefMenuModelImpl::Remove(int command_id) {
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return RemoveAt(GetIndexOf(command_id));
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}
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bool CefMenuModelImpl::RemoveAt(int index) {
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if (!VerifyContext())
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return false;
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if (index >= 0 && index < static_cast<int>(items_.size())) {
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items_.erase(items_.begin()+index);
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return true;
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}
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return false;
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}
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int CefMenuModelImpl::GetIndexOf(int command_id) {
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if (!VerifyContext())
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return -1;
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for (ItemVector::iterator i = items_.begin(); i != items_.end(); ++i) {
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if ((*i).command_id_ == command_id) {
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return static_cast<int>(std::distance(items_.begin(), i));
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}
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}
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return -1;
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}
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int CefMenuModelImpl::GetCommandIdAt(int index) {
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if (!VerifyContext())
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return -1;
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if (index >= 0 && index < static_cast<int>(items_.size()))
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return items_[index].command_id_;
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return -1;
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}
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bool CefMenuModelImpl::SetCommandIdAt(int index, int command_id) {
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if (!VerifyContext())
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return false;
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if (index >= 0 && index < static_cast<int>(items_.size())) {
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items_[index].command_id_ = command_id;
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return true;
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}
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return false;
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}
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CefString CefMenuModelImpl::GetLabel(int command_id) {
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return GetLabelAt(GetIndexOf(command_id));
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}
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CefString CefMenuModelImpl::GetLabelAt(int index) {
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if (!VerifyContext())
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return CefString();
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if (index >= 0 && index < static_cast<int>(items_.size()))
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return items_[index].label_;
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return CefString();
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}
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bool CefMenuModelImpl::SetLabel(int command_id, const CefString& label) {
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return SetLabelAt(GetIndexOf(command_id), label);
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}
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bool CefMenuModelImpl::SetLabelAt(int index, const CefString& label) {
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if (!VerifyContext())
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return false;
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if (index >= 0 && index < static_cast<int>(items_.size())) {
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items_[index].label_ = label;
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return true;
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}
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return false;
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}
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CefMenuModelImpl::MenuItemType CefMenuModelImpl::GetType(int command_id) {
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return GetTypeAt(GetIndexOf(command_id));
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}
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CefMenuModelImpl::MenuItemType CefMenuModelImpl::GetTypeAt(int index) {
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if (!VerifyContext())
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return MENUITEMTYPE_NONE;
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if (index >= 0 && index < static_cast<int>(items_.size()))
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return items_[index].type_;
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return MENUITEMTYPE_NONE;
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}
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int CefMenuModelImpl::GetGroupId(int command_id) {
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return GetGroupIdAt(GetIndexOf(command_id));
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}
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int CefMenuModelImpl::GetGroupIdAt(int index) {
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if (!VerifyContext())
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return -1;
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if (index >= 0 && index < static_cast<int>(items_.size()))
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return items_[index].group_id_;
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return -1;
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}
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bool CefMenuModelImpl::SetGroupId(int command_id, int group_id) {
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return SetGroupIdAt(GetIndexOf(command_id), group_id);
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}
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bool CefMenuModelImpl::SetGroupIdAt(int index, int group_id) {
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if (!VerifyContext())
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return false;
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if (index >= 0 && index < static_cast<int>(items_.size())) {
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items_[index].group_id_ = group_id;
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return true;
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}
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return false;
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}
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CefRefPtr<CefMenuModel> CefMenuModelImpl::GetSubMenu(int command_id) {
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return GetSubMenuAt(GetIndexOf(command_id));
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}
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CefRefPtr<CefMenuModel> CefMenuModelImpl::GetSubMenuAt(int index) {
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if (!VerifyContext())
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return NULL;
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if (index >= 0 && index < static_cast<int>(items_.size()))
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return items_[index].submenu_.get();
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return NULL;
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}
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bool CefMenuModelImpl::IsVisible(int command_id) {
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return IsVisibleAt(GetIndexOf(command_id));
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}
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bool CefMenuModelImpl::IsVisibleAt(int index) {
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if (!VerifyContext())
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return false;
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if (index >= 0 && index < static_cast<int>(items_.size()))
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return items_[index].visible_;
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return false;
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}
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bool CefMenuModelImpl::SetVisible(int command_id, bool visible) {
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return SetVisibleAt(GetIndexOf(command_id), visible);
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}
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bool CefMenuModelImpl::SetVisibleAt(int index, bool visible) {
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if (!VerifyContext())
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return false;
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if (index >= 0 && index < static_cast<int>(items_.size())) {
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items_[index].visible_ = visible;
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return true;
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}
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return false;
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}
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bool CefMenuModelImpl::IsEnabled(int command_id) {
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return IsEnabledAt(GetIndexOf(command_id));
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}
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bool CefMenuModelImpl::IsEnabledAt(int index) {
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if (!VerifyContext())
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return false;
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if (index >= 0 && index < static_cast<int>(items_.size()))
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return items_[index].enabled_;
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return false;
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}
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bool CefMenuModelImpl::SetEnabled(int command_id, bool enabled) {
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return SetEnabledAt(GetIndexOf(command_id), enabled);
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}
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bool CefMenuModelImpl::SetEnabledAt(int index, bool enabled) {
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if (!VerifyContext())
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return false;
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if (index >= 0 && index < static_cast<int>(items_.size())) {
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items_[index].enabled_ = enabled;
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return true;
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}
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return false;
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}
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bool CefMenuModelImpl::IsChecked(int command_id) {
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return IsCheckedAt(GetIndexOf(command_id));
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}
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bool CefMenuModelImpl::IsCheckedAt(int index) {
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if (!VerifyContext())
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return false;
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if (index >= 0 && index < static_cast<int>(items_.size()))
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return items_[index].checked_;
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return false;
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}
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bool CefMenuModelImpl::SetChecked(int command_id, bool checked) {
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return SetCheckedAt(GetIndexOf(command_id), checked);
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}
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bool CefMenuModelImpl::SetCheckedAt(int index, bool checked) {
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if (!VerifyContext())
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return false;
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if (index >= 0 && index < static_cast<int>(items_.size())) {
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items_[index].checked_ = checked;
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return true;
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}
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return false;
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}
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bool CefMenuModelImpl::HasAccelerator(int command_id) {
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return HasAcceleratorAt(GetIndexOf(command_id));
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}
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bool CefMenuModelImpl::HasAcceleratorAt(int index) {
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if (!VerifyContext())
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return false;
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if (index >= 0 && index < static_cast<int>(items_.size()))
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return items_[index].has_accelerator_;
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return false;
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}
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bool CefMenuModelImpl::SetAccelerator(int command_id, int key_code,
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bool shift_pressed, bool ctrl_pressed,
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bool alt_pressed) {
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return SetAcceleratorAt(GetIndexOf(command_id), key_code, shift_pressed,
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ctrl_pressed, alt_pressed);
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}
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bool CefMenuModelImpl::SetAcceleratorAt(int index, int key_code,
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bool shift_pressed, bool ctrl_pressed,
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bool alt_pressed) {
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if (!VerifyContext())
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return false;
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if (index >= 0 && index < static_cast<int>(items_.size())) {
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Item& item = items_[index];
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item.has_accelerator_ = true;
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item.key_code_ = key_code;
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item.shift_pressed_ = shift_pressed;
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item.ctrl_pressed_ = ctrl_pressed;
|
|
item.alt_pressed_ = alt_pressed;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool CefMenuModelImpl::RemoveAccelerator(int command_id) {
|
|
return RemoveAcceleratorAt(GetIndexOf(command_id));
|
|
}
|
|
|
|
bool CefMenuModelImpl::RemoveAcceleratorAt(int index) {
|
|
if (!VerifyContext())
|
|
return false;
|
|
|
|
if (index >= 0 && index < static_cast<int>(items_.size())) {
|
|
Item& item = items_[index];
|
|
if (item.has_accelerator_) {
|
|
item.has_accelerator_ = false;
|
|
item.key_code_ = 0;
|
|
item.shift_pressed_ = false;
|
|
item.ctrl_pressed_ = false;
|
|
item.alt_pressed_ = false;
|
|
}
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool CefMenuModelImpl::GetAccelerator(int command_id, int& key_code,
|
|
bool& shift_pressed, bool& ctrl_pressed,
|
|
bool& alt_pressed) {
|
|
return GetAcceleratorAt(GetIndexOf(command_id), key_code, shift_pressed,
|
|
ctrl_pressed, alt_pressed);
|
|
}
|
|
|
|
bool CefMenuModelImpl::GetAcceleratorAt(int index, int& key_code,
|
|
bool& shift_pressed, bool& ctrl_pressed,
|
|
bool& alt_pressed) {
|
|
if (!VerifyContext())
|
|
return false;
|
|
|
|
if (index >= 0 && index < static_cast<int>(items_.size())) {
|
|
const Item& item = items_[index];
|
|
if (item.has_accelerator_) {
|
|
key_code = item.key_code_;
|
|
shift_pressed = item.shift_pressed_;
|
|
ctrl_pressed = item.ctrl_pressed_;
|
|
alt_pressed = item.alt_pressed_;
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void CefMenuModelImpl::ActivatedAt(int index, cef_event_flags_t event_flags) {
|
|
if (VerifyContext() && delegate_)
|
|
delegate_->ExecuteCommand(this, GetCommandIdAt(index), event_flags);
|
|
}
|
|
|
|
void CefMenuModelImpl::MenuWillShow() {
|
|
if (VerifyContext() && delegate_)
|
|
delegate_->MenuWillShow(this);
|
|
}
|
|
|
|
void CefMenuModelImpl::MenuClosed() {
|
|
if (!VerifyContext())
|
|
return;
|
|
|
|
// Due to how menus work on the different platforms, ActivatedAt will be
|
|
// called after this. It's more convenient for the delegate to be called
|
|
// afterwards, though, so post a task.
|
|
base::MessageLoop::current()->PostTask(
|
|
FROM_HERE,
|
|
base::Bind(&CefMenuModelImpl::OnMenuClosed, this));
|
|
}
|
|
|
|
base::string16 CefMenuModelImpl::GetFormattedLabelAt(int index) {
|
|
base::string16 label = GetLabelAt(index).ToString16();
|
|
delegate_->FormatLabel(label);
|
|
return label;
|
|
}
|
|
|
|
bool CefMenuModelImpl::VerifyRefCount() {
|
|
if (!VerifyContext())
|
|
return false;
|
|
|
|
if (GetRefCt() != 1)
|
|
return false;
|
|
|
|
for (ItemVector::iterator i = items_.begin(); i != items_.end(); ++i) {
|
|
if ((*i).submenu_.get()) {
|
|
if (!(*i).submenu_->VerifyRefCount())
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void CefMenuModelImpl::AppendItem(const Item& item) {
|
|
ValidateItem(item);
|
|
items_.push_back(item);
|
|
}
|
|
|
|
void CefMenuModelImpl::InsertItemAt(const Item& item, int index) {
|
|
// Sanitize the index.
|
|
if (index < 0)
|
|
index = 0;
|
|
else if (index > static_cast<int>(items_.size()))
|
|
index = items_.size();
|
|
|
|
ValidateItem(item);
|
|
items_.insert(items_.begin() + index, item);
|
|
}
|
|
|
|
void CefMenuModelImpl::ValidateItem(const Item& item) {
|
|
#ifndef NDEBUG
|
|
if (item.type_ == MENUITEMTYPE_SEPARATOR) {
|
|
DCHECK_EQ(item.command_id_, kSeparatorId);
|
|
} else {
|
|
DCHECK_GE(item.command_id_, 0);
|
|
}
|
|
#endif // NDEBUG
|
|
}
|
|
|
|
void CefMenuModelImpl::OnMenuClosed() {
|
|
if (delegate_)
|
|
delegate_->MenuClosed(this);
|
|
}
|
|
|
|
bool CefMenuModelImpl::VerifyContext() {
|
|
if (base::PlatformThread::CurrentId() != supported_thread_id_) {
|
|
// This object should only be accessed from the thread that created it.
|
|
NOTREACHED();
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|