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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
93 lines
3.0 KiB
C++
93 lines
3.0 KiB
C++
// Copyright (c) 2013 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_CEFCLIENT_OSR_WIDGET_GTK_H_
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#define CEF_TESTS_CEFCLIENT_CEFCLIENT_OSR_WIDGET_GTK_H_
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#pragma once
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#include "include/cef_render_handler.h"
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#include "cefclient/client_handler.h"
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#include "cefclient/osrenderer.h"
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class OSRBrowserProvider {
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public:
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virtual CefRefPtr<CefBrowser> GetBrowser() =0;
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protected:
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virtual ~OSRBrowserProvider() {}
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};
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class OSRWindow : public ClientHandler::RenderHandler {
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public:
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// Create a new OSRWindow instance. |browser_provider| must outlive this
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// object.
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static CefRefPtr<OSRWindow> Create(OSRBrowserProvider* browser_provider,
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bool transparent,
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ClientWindowHandle parentView);
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static CefRefPtr<OSRWindow> From(
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CefRefPtr<ClientHandler::RenderHandler> renderHandler);
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ClientWindowHandle GetWindowHandle() const {
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return glarea_;
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}
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CefRefPtr<CefBrowserHost> GetBrowserHost() const {
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if (browser_provider_->GetBrowser())
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return browser_provider_->GetBrowser()->GetHost();
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return NULL;
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}
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// ClientHandler::RenderHandler methods
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virtual void OnBeforeClose(CefRefPtr<CefBrowser> browser) OVERRIDE;
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// CefRenderHandler methods
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virtual bool GetViewRect(CefRefPtr<CefBrowser> browser,
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CefRect& rect) OVERRIDE;
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virtual bool GetScreenPoint(CefRefPtr<CefBrowser> browser,
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int viewX,
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int viewY,
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int& screenX,
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int& screenY) OVERRIDE;
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virtual void OnPopupShow(CefRefPtr<CefBrowser> browser,
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bool show) OVERRIDE;
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virtual void OnPopupSize(CefRefPtr<CefBrowser> browser,
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const CefRect& rect) OVERRIDE;
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virtual void OnPaint(CefRefPtr<CefBrowser> browser,
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PaintElementType type,
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const RectList& dirtyRects,
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const void* buffer,
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int width,
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int height) OVERRIDE;
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virtual void OnCursorChange(CefRefPtr<CefBrowser> browser,
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CefCursorHandle cursor) OVERRIDE;
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void Invalidate();
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bool IsOverPopupWidget(int x, int y) const;
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int GetPopupXOffset() const;
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int GetPopupYOffset() const;
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void ApplyPopupOffset(int& x, int& y) const;
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private:
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OSRWindow(OSRBrowserProvider* browser_provider,
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bool transparent,
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ClientWindowHandle parentView);
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virtual ~OSRWindow();
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void Render();
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void EnableGL();
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void DisableGL();
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ClientOSRenderer renderer_;
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OSRBrowserProvider* browser_provider_;
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ClientWindowHandle glarea_;
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bool gl_enabled_;
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bool painting_popup_;
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bool render_task_pending_;
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IMPLEMENT_REFCOUNTING(OSRWindow);
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};
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#endif // CEF_TESTS_CEFCLIENT_CEFCLIENT_OSR_WIDGET_GTK_H_
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