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First part of refactoring constellation to support iframe navigation.

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The history is now recorded per frame, but needs to be exposed in a followup PR.

Also fixes a race condition that occurs loading iframes under heavy CPU load.

This ensures that iframes never do a reflow / layout until they have a valid
window size set from their parent frame.
This commit is contained in:
Glenn Watson 2015-03-13 15:08:02 +10:00
parent 0888a3a16d
commit 939a89568e
11 changed files with 587 additions and 921 deletions
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10
components/compositing/compositor_task.rs
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@ -13,18 +13,16 @@ use windowing::{WindowEvent, WindowMethods};
use azure::azure_hl::{SourceSurfaceMethods, Color};
use geom::point::Point2D;
use geom::rect::{Rect, TypedRect};
use geom::rect::Rect;
use geom::size::Size2D;
use layers::platform::surface::{NativeCompositingGraphicsContext, NativeGraphicsMetadata};
use layers::layers::LayerBufferSet;
use pipeline::CompositionPipeline;
use msg::compositor_msg::{Epoch, LayerId, LayerMetadata, ReadyState};
use msg::compositor_msg::{PaintListener, PaintState, ScriptListener, ScrollPolicy};
use msg::constellation_msg::{ConstellationChan, PipelineId};
use msg::constellation_msg::{Key, KeyState, KeyModifiers};
use url::Url;
use util::cursor::Cursor;
use util::geometry::PagePx;
use util::memory::MemoryProfilerChan;
use util::time::TimeProfilerChan;
use std::sync::mpsc::{channel, Sender, Receiver};
@ -207,10 +205,6 @@ pub enum Msg {
PaintMsgDiscarded,
/// Replaces the current frame tree, typically called during main frame navigation.
SetFrameTree(SendableFrameTree, Sender<()>, ConstellationChan),
/// Requests the compositor to create a root layer for a new frame.
CreateRootLayerForPipeline(CompositionPipeline, CompositionPipeline, Option<TypedRect<PagePx, f32>>, Sender<()>),
/// Requests the compositor to change a root layer's pipeline and remove all child layers.
ChangeLayerPipelineAndRemoveChildren(CompositionPipeline, CompositionPipeline, Sender<()>),
/// The load of a page has completed.
LoadComplete,
/// Indicates that the scrolling timeout with the given starting timestamp has happened and a
@ -241,8 +235,6 @@ impl Debug for Msg {
Msg::ChangePageUrl(..) => write!(f, "ChangePageUrl"),
Msg::PaintMsgDiscarded(..) => write!(f, "PaintMsgDiscarded"),
Msg::SetFrameTree(..) => write!(f, "SetFrameTree"),
Msg::CreateRootLayerForPipeline(..) => write!(f, "CreateRootLayerForPipeline"),
Msg::ChangeLayerPipelineAndRemoveChildren(..) => write!(f, "ChangeLayerPipelineAndRemoveChildren"),
Msg::LoadComplete => write!(f, "LoadComplete"),
Msg::ScrollTimeout(..) => write!(f, "ScrollTimeout"),
Msg::KeyEvent(..) => write!(f, "KeyEvent"),