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Create 2272 release branch for CEF3.
git-svn-id: https://chromiumembedded.googlecode.com/svn/branches/2272@1993 5089003a-bbd8-11dd-ad1f-f1f9622dbc98
This commit is contained in:
Marshall Greenblatt
357
libcef/browser/menu_creator.cc
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357
libcef/browser/menu_creator.cc
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// Copyright (c) 2012 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 can
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// be found in the LICENSE file.
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#include "libcef/browser/menu_creator.h"
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#include "libcef/browser/browser_host_impl.h"
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#include "libcef/browser/context_menu_params_impl.h"
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#include "libcef/common/content_client.h"
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#include "base/compiler_specific.h"
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#include "base/logging.h"
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#include "content/public/browser/render_frame_host.h"
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#include "content/public/browser/render_process_host.h"
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#include "content/public/browser/render_widget_host_view.h"
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#include "grit/cef_strings.h"
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#if defined(OS_WIN)
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#include "libcef/browser/menu_creator_runner_win.h"
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#elif defined(OS_MACOSX)
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#include "libcef/browser/menu_creator_runner_mac.h"
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#elif defined(OS_LINUX)
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#include "libcef/browser/menu_creator_runner_linux.h"
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#endif
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namespace {
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CefString GetLabel(int message_id) {
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base::string16 label =
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CefContentClient::Get()->GetLocalizedString(message_id);
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DCHECK(!label.empty());
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return label;
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}
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} // namespace
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CefMenuCreator::CefMenuCreator(CefBrowserHostImpl* browser)
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: browser_(browser) {
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model_ = new CefMenuModelImpl(this);
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}
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CefMenuCreator::~CefMenuCreator() {
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// The model may outlive the delegate if the context menu is visible when the
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// application is closed.
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model_->set_delegate(NULL);
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}
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bool CefMenuCreator::IsShowingContextMenu() {
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content::WebContents* web_contents = browser_->GetWebContents();
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if (!web_contents)
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return false;
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content::RenderWidgetHostView* view = web_contents->GetRenderWidgetHostView();
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return (view && view->IsShowingContextMenu());
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}
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bool CefMenuCreator::CreateContextMenu(
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const content::ContextMenuParams& params) {
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if (!CreateRunner())
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return true;
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// The renderer may send the "show context menu" message multiple times, one
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// for each right click mouse event it receives. Normally, this doesn't happen
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// because mouse events are not forwarded once the context menu is showing.
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// However, there's a race - the context menu may not yet be showing when
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// the second mouse event arrives. In this case, |HandleContextMenu()| will
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// get called multiple times - if so, don't create another context menu.
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// TODO(asvitkine): Fix the renderer so that it doesn't do this.
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if (IsShowingContextMenu())
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return true;
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params_ = params;
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model_->Clear();
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// Create the default menu model.
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CreateDefaultModel();
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// Give the client a chance to modify the model.
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CefRefPtr<CefClient> client = browser_->GetClient();
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if (client.get()) {
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CefRefPtr<CefContextMenuHandler> handler =
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client->GetContextMenuHandler();
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if (handler.get()) {
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CefRefPtr<CefContextMenuParamsImpl> paramsPtr(
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new CefContextMenuParamsImpl(¶ms_));
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handler->OnBeforeContextMenu(browser_,
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browser_->GetFocusedFrame(),
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paramsPtr.get(),
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model_.get());
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// Do not keep references to the parameters in the callback.
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paramsPtr->Detach(NULL);
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DCHECK(paramsPtr->HasOneRef());
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DCHECK(model_->VerifyRefCount());
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// Menu is empty so notify the client and return.
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if (model_->GetCount() == 0) {
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MenuClosed(model_);
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return true;
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}
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}
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}
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return runner_->RunContextMenu(this);
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}
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void CefMenuCreator::CancelContextMenu() {
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if (IsShowingContextMenu())
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runner_->CancelContextMenu();
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}
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bool CefMenuCreator::CreateRunner() {
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if (!runner_.get()) {
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// Create the menu runner.
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#if defined(OS_WIN)
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runner_.reset(new CefMenuCreatorRunnerWin);
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#elif defined(OS_MACOSX)
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runner_.reset(new CefMenuCreatorRunnerMac);
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#elif defined(OS_LINUX)
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runner_.reset(new CefMenuCreatorRunnerLinux);
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#else
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// Need an implementation.
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NOTREACHED();
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#endif
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}
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return (runner_.get() != NULL);
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}
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void CefMenuCreator::ExecuteCommand(CefRefPtr<CefMenuModelImpl> source,
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int command_id,
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cef_event_flags_t event_flags) {
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// Give the client a chance to handle the command.
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CefRefPtr<CefClient> client = browser_->GetClient();
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if (client.get()) {
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CefRefPtr<CefContextMenuHandler> handler =
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client->GetContextMenuHandler();
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if (handler.get()) {
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CefRefPtr<CefContextMenuParamsImpl> paramsPtr(
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new CefContextMenuParamsImpl(¶ms_));
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bool handled = handler->OnContextMenuCommand(
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browser_,
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browser_->GetFocusedFrame(),
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paramsPtr.get(),
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command_id,
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event_flags);
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// Do not keep references to the parameters in the callback.
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paramsPtr->Detach(NULL);
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DCHECK(paramsPtr->HasOneRef());
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if (handled)
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return;
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}
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}
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// Execute the default command handling.
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ExecuteDefaultCommand(command_id);
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}
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void CefMenuCreator::MenuWillShow(CefRefPtr<CefMenuModelImpl> source) {
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// May be called for sub-menus as well.
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if (source.get() != model_.get())
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return;
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content::WebContents* web_contents = browser_->GetWebContents();
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if (!web_contents)
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return;
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// Notify the host before showing the context menu.
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content::RenderWidgetHostView* view = web_contents->GetRenderWidgetHostView();
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if (view)
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view->SetShowingContextMenu(true);
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}
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void CefMenuCreator::MenuClosed(CefRefPtr<CefMenuModelImpl> source) {
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// May be called for sub-menus as well.
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if (source.get() != model_.get())
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return;
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// Notify the client.
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CefRefPtr<CefClient> client = browser_->GetClient();
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if (client.get()) {
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CefRefPtr<CefContextMenuHandler> handler =
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client->GetContextMenuHandler();
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if (handler.get()) {
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handler->OnContextMenuDismissed(browser_, browser_->GetFocusedFrame());
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}
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}
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if (IsShowingContextMenu()) {
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// Notify the host after closing the context menu.
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content::WebContents* web_contents = browser_->GetWebContents();
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content::RenderWidgetHostView* view =
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web_contents->GetRenderWidgetHostView();
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if (view)
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view->SetShowingContextMenu(false);
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web_contents->NotifyContextMenuClosed(params_.custom_context);
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}
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}
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bool CefMenuCreator::FormatLabel(base::string16& label) {
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return runner_->FormatLabel(label);
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}
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void CefMenuCreator::CreateDefaultModel() {
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if (params_.is_editable) {
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// Editable node.
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model_->AddItem(MENU_ID_UNDO, GetLabel(IDS_MENU_UNDO));
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model_->AddItem(MENU_ID_REDO, GetLabel(IDS_MENU_REDO));
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model_->AddSeparator();
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model_->AddItem(MENU_ID_CUT, GetLabel(IDS_MENU_CUT));
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model_->AddItem(MENU_ID_COPY, GetLabel(IDS_MENU_COPY));
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model_->AddItem(MENU_ID_PASTE, GetLabel(IDS_MENU_PASTE));
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model_->AddItem(MENU_ID_DELETE, GetLabel(IDS_MENU_DELETE));
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model_->AddSeparator();
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model_->AddItem(MENU_ID_SELECT_ALL, GetLabel(IDS_MENU_SELECT_ALL));
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if (!(params_.edit_flags & CM_EDITFLAG_CAN_UNDO))
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model_->SetEnabled(MENU_ID_UNDO, false);
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if (!(params_.edit_flags & CM_EDITFLAG_CAN_REDO))
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model_->SetEnabled(MENU_ID_REDO, false);
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if (!(params_.edit_flags & CM_EDITFLAG_CAN_CUT))
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model_->SetEnabled(MENU_ID_CUT, false);
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if (!(params_.edit_flags & CM_EDITFLAG_CAN_COPY))
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model_->SetEnabled(MENU_ID_COPY, false);
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if (!(params_.edit_flags & CM_EDITFLAG_CAN_PASTE))
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model_->SetEnabled(MENU_ID_PASTE, false);
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if (!(params_.edit_flags & CM_EDITFLAG_CAN_DELETE))
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model_->SetEnabled(MENU_ID_DELETE, false);
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if (!(params_.edit_flags & CM_EDITFLAG_CAN_SELECT_ALL))
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model_->SetEnabled(MENU_ID_SELECT_ALL, false);
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if(!params_.misspelled_word.empty()) {
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// Always add a separator before the list of dictionary suggestions or
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// "No spelling suggestions".
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model_->AddSeparator();
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if (!params_.dictionary_suggestions.empty()) {
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for (size_t i = 0;
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i < params_.dictionary_suggestions.size() &&
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MENU_ID_SPELLCHECK_SUGGESTION_0 + i <=
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MENU_ID_SPELLCHECK_SUGGESTION_LAST;
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++i) {
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model_->AddItem(MENU_ID_SPELLCHECK_SUGGESTION_0 + static_cast<int>(i),
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params_.dictionary_suggestions[i].c_str());
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}
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// When there are dictionary suggestions add a separator before "Add to
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// dictionary".
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model_->AddSeparator();
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} else {
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model_->AddItem(
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MENU_ID_NO_SPELLING_SUGGESTIONS,
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GetLabel(IDS_CONTENT_CONTEXT_NO_SPELLING_SUGGESTIONS));
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model_->SetEnabled(MENU_ID_NO_SPELLING_SUGGESTIONS, false);
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}
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model_->AddItem(
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MENU_ID_ADD_TO_DICTIONARY,
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GetLabel(IDS_CONTENT_CONTEXT_ADD_TO_DICTIONARY));
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}
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} else if (!params_.selection_text.empty()) {
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// Something is selected.
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model_->AddItem(MENU_ID_COPY, GetLabel(IDS_MENU_COPY));
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} else if (!params_.page_url.is_empty() || !params_.frame_url.is_empty()) {
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// Page or frame.
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model_->AddItem(MENU_ID_BACK, GetLabel(IDS_MENU_BACK));
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model_->AddItem(MENU_ID_FORWARD, GetLabel(IDS_MENU_FORWARD));
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model_->AddSeparator();
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model_->AddItem(MENU_ID_PRINT, GetLabel(IDS_MENU_PRINT));
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model_->AddItem(MENU_ID_VIEW_SOURCE, GetLabel(IDS_MENU_VIEW_SOURCE));
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if (!browser_->CanGoBack())
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model_->SetEnabled(MENU_ID_BACK, false);
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if (!browser_->CanGoForward())
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model_->SetEnabled(MENU_ID_FORWARD, false);
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}
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}
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void CefMenuCreator::ExecuteDefaultCommand(int command_id) {
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// If the user chose a replacement word for a misspelling, replace it here.
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if (command_id >= MENU_ID_SPELLCHECK_SUGGESTION_0 &&
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command_id <= MENU_ID_SPELLCHECK_SUGGESTION_LAST) {
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const size_t suggestion_index =
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static_cast<size_t>(command_id) - MENU_ID_SPELLCHECK_SUGGESTION_0;
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if (suggestion_index < params_.dictionary_suggestions.size()) {
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browser_->ReplaceMisspelling(
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params_.dictionary_suggestions[suggestion_index]);
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}
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return;
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}
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switch (command_id) {
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// Navigation.
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case MENU_ID_BACK:
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browser_->GoBack();
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break;
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case MENU_ID_FORWARD:
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browser_->GoForward();
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break;
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case MENU_ID_RELOAD:
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browser_->Reload();
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break;
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case MENU_ID_RELOAD_NOCACHE:
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browser_->ReloadIgnoreCache();
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break;
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case MENU_ID_STOPLOAD:
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browser_->StopLoad();
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break;
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// Editing.
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case MENU_ID_UNDO:
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browser_->GetFocusedFrame()->Undo();
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break;
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case MENU_ID_REDO:
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browser_->GetFocusedFrame()->Redo();
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break;
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case MENU_ID_CUT:
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browser_->GetFocusedFrame()->Cut();
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break;
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case MENU_ID_COPY:
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browser_->GetFocusedFrame()->Copy();
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break;
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case MENU_ID_PASTE:
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browser_->GetFocusedFrame()->Paste();
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break;
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case MENU_ID_DELETE:
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browser_->GetFocusedFrame()->Delete();
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break;
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case MENU_ID_SELECT_ALL:
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browser_->GetFocusedFrame()->SelectAll();
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break;
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// Miscellaneous.
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case MENU_ID_FIND:
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// TODO(cef): Implement.
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NOTIMPLEMENTED();
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break;
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case MENU_ID_PRINT:
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browser_->Print();
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break;
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case MENU_ID_VIEW_SOURCE:
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browser_->GetFocusedFrame()->ViewSource();
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break;
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// Spell checking.
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case MENU_ID_ADD_TO_DICTIONARY:
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browser_->GetHost()->AddWordToDictionary(params_.misspelled_word);
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break;
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default:
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break;
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}
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}
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