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Send incremental frame tree updates to the compositor

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This allows the compositor to add frames after the call to SetIds,
where the initial frame tree is created. There are still some issues
preventing proper late frame creation, but this prevents crashes when
it happens.

Fixes #3738.
This commit is contained in:
Martin Robinson 2014-11-10 11:34:44 -08:00
parent 750bedab81
commit fbb1e0c6b8
5 changed files with 130 additions and 28 deletions
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6
components/compositing/headless.rs
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@ -5,7 +5,7 @@
use compositor_task::{GetGraphicsMetadata, CreateOrUpdateRootLayer, CreateOrUpdateDescendantLayer};
use compositor_task::{Exit, ChangeReadyState, LoadComplete, Paint, ScrollFragmentPoint, SetIds};
use compositor_task::{SetLayerOrigin, ShutdownComplete, ChangeRenderState, RenderMsgDiscarded};
use compositor_task::{CompositorEventListener, CompositorReceiver, ScrollTimeout};
use compositor_task::{CompositorEventListener, CompositorReceiver, ScrollTimeout, FrameTreeUpdateMsg};
use windowing::WindowEvent;
use geom::scale_factor::ScaleFactor;
@ -92,6 +92,10 @@ impl CompositorEventListener for NullCompositor {
response_chan.send(());
}
FrameTreeUpdateMsg(_, response_channel) => {
response_channel.send(());
}
// Explicitly list ignored messages so that when we add a new one,
// we'll notice and think about whether it needs a response, like
// SetIds.