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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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27
libcef/browser/menu_creator_runner_win.cc
View File

@ -24,10 +24,29 @@ bool CefMenuCreatorRunnerWin::RunContextMenu(CefMenuCreator* manager) {
gfx::Point screen_point;
aura::Window* window = manager->browser()->GetContentView();
const gfx::Rect& bounds_in_screen = window->GetBoundsInScreen();
screen_point = gfx::Point(bounds_in_screen.x() + manager->params().x,
bounds_in_screen.y() + manager->params().y);
if (manager->browser()->IsWindowless()) {
CefRefPtr<CefClient> client = manager->browser()->GetClient();
if (!client.get())
return false;
CefRefPtr<CefRenderHandler> handler = client->GetRenderHandler();
if (!handler.get())
return false;
int screenX = 0, screenY = 0;
if (!handler->GetScreenPoint(manager->browser(),
manager->params().x, manager->params().y,
screenX, screenY)) {
return false;
}
screen_point = gfx::Point(screenX, screenY);
} else {
aura::Window* window = manager->browser()->GetContentView();
const gfx::Rect& bounds_in_screen = window->GetBoundsInScreen();
screen_point = gfx::Point(bounds_in_screen.x() + manager->params().x,
bounds_in_screen.y() + manager->params().y);
}
// Show the menu. Blocks until the menu is dismissed.
menu_->RunMenuAt(screen_point, views::Menu2::ALIGN_TOPLEFT);