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Implement off-screen rendering support using delegated rendering (issue #1257).

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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
This commit is contained in:
Marshall Greenblatt
2014-06-30 22:30:29 +00:00
parent 133317eeec
commit dea4daffd7
106 changed files with 13053 additions and 176 deletions
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24
libcef/common/drag_data_impl.h
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@ -14,7 +14,10 @@
// Implementation of CefDragData.
class CefDragDataImpl : public CefDragData {
public:
CefDragDataImpl();
explicit CefDragDataImpl(const content::DropData& data);
virtual CefRefPtr<CefDragData> Clone();
virtual bool IsReadOnly();
virtual bool IsLink();
virtual bool IsFragment();
@ -26,12 +29,33 @@ class CefDragDataImpl : public CefDragData {
virtual CefString GetFragmentHtml();
virtual CefString GetFragmentBaseURL();
virtual CefString GetFileName();
virtual size_t GetFileContents(CefRefPtr<CefStreamWriter> writer);
virtual bool GetFileNames(std::vector<CefString>& names);
virtual void SetLinkURL(const CefString& url);
virtual void SetLinkTitle(const CefString& title);
virtual void SetLinkMetadata(const CefString& data);
virtual void SetFragmentText(const CefString& text);
virtual void SetFragmentHtml(const CefString& fragment);
virtual void SetFragmentBaseURL(const CefString& fragment);
virtual void ResetFileContents();
virtual void AddFile(const CefString& path, const CefString& display_name);
// This method is not safe. Use Lock/Unlock to get mutually exclusive access.
const content::DropData& drop_data() {
return data_;
}
void SetReadOnly(bool read_only);
protected:
content::DropData data_;
// True if this object is read-only.
bool read_only_;
IMPLEMENT_REFCOUNTING(CefDragDataImpl);
IMPLEMENT_LOCKING(CefDragDataImpl);
};
#endif // CEF_LIBCEF_COMMON_DRAG_DATA_IMPL_H_