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compositing: Move messages that go over the ScriptListener to go over

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an IPC channel instead.

Because this used a boxed trait object to invoke messages across a
process boundary, and boxed trait objects are not supported across IPC,
we spawn a helper thread inside the compositor to perform the marshaling
for us.
This commit is contained in:
Patrick Walton 2015-07-10 18:08:03 -07:00
parent 2947d78e4e
commit e841065351
14 changed files with 211 additions and 82 deletions
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31
components/script_traits/lib.rs
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@ -150,22 +150,21 @@ pub struct ScriptControlChan(pub Sender<ConstellationControlMsg>);
/// crate.
pub trait ScriptTaskFactory {
/// Create a `ScriptTask`.
fn create<C>(_phantom: Option<&mut Self>,
id: PipelineId,
parent_info: Option<(PipelineId, SubpageId)>,
compositor: C,
layout_chan: &OpaqueScriptLayoutChannel,
control_chan: ScriptControlChan,
control_port: Receiver<ConstellationControlMsg>,
constellation_msg: ConstellationChan,
failure_msg: Failure,
resource_task: ResourceTask,
storage_task: StorageTask,
image_cache_task: ImageCacheTask,
devtools_chan: Option<DevtoolsControlChan>,
window_size: Option<WindowSizeData>,
load_data: LoadData)
where C: ScriptListener + Send;
fn create(_phantom: Option<&mut Self>,
id: PipelineId,
parent_info: Option<(PipelineId, SubpageId)>,
compositor: ScriptListener,
layout_chan: &OpaqueScriptLayoutChannel,
control_chan: ScriptControlChan,
control_port: Receiver<ConstellationControlMsg>,
constellation_msg: ConstellationChan,
failure_msg: Failure,
resource_task: ResourceTask,
storage_task: StorageTask,
image_cache_task: ImageCacheTask,
devtools_chan: Option<DevtoolsControlChan>,
window_size: Option<WindowSizeData>,
load_data: LoadData);
/// Create a script -> layout channel (`Sender`, `Receiver` pair).
fn create_layout_channel(_phantom: Option<&mut Self>) -> OpaqueScriptLayoutChannel;
/// Clone the `Sender` in `pair`.