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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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5
components/compositing/compositor_task.rs
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@ -5,7 +5,7 @@
//! Communication with the compositor task.
pub use windowing;
pub use constellation::SendableFrameTree;
pub use constellation::{SendableFrameTree, FrameTreeDiff};
use compositor;
use headless;
@ -189,6 +189,8 @@ pub enum Msg {
RenderMsgDiscarded,
/// Sets the channel to the current layout and render tasks, along with their id
SetIds(SendableFrameTree, Sender<()>, ConstellationChan),
/// Sends an updated version of the frame tree.
FrameTreeUpdateMsg(FrameTreeDiff, Sender<()>),
/// The load of a page for a given URL has completed.
LoadComplete(PipelineId, Url),
/// Indicates that the scrolling timeout with the given starting timestamp has happened and a
@ -211,6 +213,7 @@ impl Show for Msg {
ChangeRenderState(..) => write!(f, "ChangeRenderState"),
RenderMsgDiscarded(..) => write!(f, "RenderMsgDiscarded"),
SetIds(..) => write!(f, "SetIds"),
FrameTreeUpdateMsg(..) => write!(f, "FrameTreeUpdateMsg"),
LoadComplete(..) => write!(f, "LoadComplete"),
ScrollTimeout(..) => write!(f, "ScrollTimeout"),
}