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layout: Load Web fonts asynchronously.

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Improves page load times significantly.

Closes #7343.
This commit is contained in:
Patrick Walton 2015-09-10 14:16:50 -07:00
parent 9523283c14
commit 9bb6acd690
8 changed files with 216 additions and 35 deletions
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8
components/script_traits/lib.rs
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@ -58,6 +58,9 @@ pub enum LayoutControlMsg {
TickAnimations,
/// Informs layout as to which regions of the page are visible.
SetVisibleRects(Vec<(LayerId, Rect<Au>)>),
/// Requests the current load state of Web fonts. `true` is returned if fonts are still loading
/// and `false` is returned if all fonts have loaded.
GetWebFontLoadState(IpcSender<bool>),
}
/// The initial data associated with a newly-created framed pipeline.
@ -99,7 +102,7 @@ pub enum ScriptState {
DocumentLoading,
}
/// Messages sent from the constellation to the script task
/// Messages sent from the constellation or layout to the script task.
pub enum ConstellationControlMsg {
/// Gives a channel and ID to a layout task, as well as the ID of that layout's parent
AttachLayout(NewLayoutInfo),
@ -133,6 +136,9 @@ pub enum ConstellationControlMsg {
WebDriverScriptCommand(PipelineId, WebDriverScriptCommand),
/// Notifies script task that all animations are done
TickAllAnimations(PipelineId),
/// Notifies the script task that a new Web font has been loaded, and thus the page should be
/// reflowed.
WebFontLoaded(PipelineId),
/// Notifies script that a stylesheet has finished loading.
StylesheetLoadComplete(PipelineId, Url, Box<StylesheetLoadResponder + Send>),
/// Get the current state of the script task for a given pipeline.