cef/libcef/browser/menu_manager.h

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// Copyright (c) 2012 The Chromium Embedded Framework 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_MANAGER_H_
#define CEF_LIBCEF_BROWSER_MENU_MANAGER_H_
#pragma once
#include "libcef/browser/menu_model_impl.h"
#include "libcef/browser/menu_runner.h"
#include "base/memory/weak_ptr.h"
#include "content/public/browser/web_contents_observer.h"
#include "content/public/common/context_menu_params.h"
namespace content {
class RenderFrameHost;
class WebContents;
} // namespace content
class CefBrowserHostImpl;
class CefRunContextMenuCallback;
class CefMenuManager : public CefMenuModelImpl::Delegate,
public content::WebContentsObserver {
public:
CefMenuManager(CefBrowserHostImpl* browser,
std::unique_ptr<CefMenuRunner> runner);
~CefMenuManager() override;
// Delete the runner to free any platform constructs.
void Destroy();
// Returns true if the context menu is currently showing.
bool IsShowingContextMenu();
// Create the context menu.
bool CreateContextMenu(const content::ContextMenuParams& params);
Implement off-screen rendering support using delegated rendering (issue #1257). This implementation supports both GPU compositing and software compositing (used when GPU is not supported or when passing `--disable-gpu --disable-gpu-compositing` command-line flags). GPU-accelerated features (WebGL and 3D CSS) that did not work with the previous off-screen rendering implementation do work with this implementation when GPU support is available. Rendering now operates on a per-frame basis. The frame rate is configurable via CefBrowserSettings.windowless_frame_rate up to a maximum of 60fps (potentially limited by how fast the system can generate new frames). CEF generates a bitmap from the compositor backing and passes it to CefRenderHandler::OnPaint. The previous CefRenderHandler/CefBrowserHost API for off-screen rendering has been restored mostly as-is with some minor changes: - CefBrowserHost::Invalidate no longer accepts a CefRect region argument. Instead of invalidating a specific region it now triggers generation of a new frame. - The |dirtyRects| argument to CefRenderHandler::OnPaint will now always be a single CefRect representing the whole view (frame) size. Previously, invalidated regions were listed separately. - Linux: CefBrowserHost::SendKeyEvent now expects X11 event information instead of GTK event information. See cefclient for an example of converting GTK events to the necessary format. - Sizes passed to the CefRenderHandler OnPaint and OnPopupSize methods are now already DPI scaled. Previously, the client had to perform DPI scaling. - Includes drag&drop implementation from issue #1032. - Includes unit test fixes from issue #1245. git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@1751 5089003a-bbd8-11dd-ad1f-f1f9622dbc98
2014-07-01 00:30:29 +02:00
void CancelContextMenu();
private:
// CefMenuModelImpl::Delegate methods.
void ExecuteCommand(CefRefPtr<CefMenuModelImpl> source,
int command_id,
cef_event_flags_t event_flags) override;
void MenuWillShow(CefRefPtr<CefMenuModelImpl> source) override;
void MenuClosed(CefRefPtr<CefMenuModelImpl> source) override;
bool FormatLabel(CefRefPtr<CefMenuModelImpl> source,
base::string16& label) override;
void ExecuteCommandCallback(int command_id, cef_event_flags_t event_flags);
// Create the default menu model.
void CreateDefaultModel();
// Execute the default command handling.
void ExecuteDefaultCommand(int command_id);
// Returns true if the specified id is a custom context menu command.
bool IsCustomContextMenuCommand(int command_id);
// CefBrowserHostImpl pointer is guaranteed to outlive this object.
CefBrowserHostImpl* browser_;
std::unique_ptr<CefMenuRunner> runner_;
CefRefPtr<CefMenuModelImpl> model_;
content::ContextMenuParams params_;
// Not owned by this class.
CefRunContextMenuCallback* custom_menu_callback_;
// Must be the last member.
base::WeakPtrFactory<CefMenuManager> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(CefMenuManager);
};
#endif // CEF_LIBCEF_BROWSER_MENU_MANAGER_H_