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Support WebDriver takeScreenshot command.

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This adds support for compositing to a PNG without actually quiting
the browser.
This commit is contained in:
James Graham 2015-04-24 15:37:15 +01:00
parent 59cb1b0396
commit 5311d9ab59
13 changed files with 186 additions and 65 deletions
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4
components/compositing/compositor_task.rs
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@ -23,6 +23,7 @@ use msg::constellation_msg::{AnimationState, ConstellationChan, PipelineId};
use msg::constellation_msg::{Key, KeyState, KeyModifiers};
use profile_traits::mem;
use profile_traits::time;
use png;
use std::sync::mpsc::{channel, Sender, Receiver};
use std::fmt::{Error, Formatter, Debug};
use std::rc::Rc;
@ -218,6 +219,8 @@ pub enum Msg {
KeyEvent(Key, KeyState, KeyModifiers),
/// Changes the cursor.
SetCursor(Cursor),
/// Composite to a PNG file and return the Image over a passed channel.
CreatePng(Sender<Option<png::Image>>),
/// Informs the compositor that the paint task for the given pipeline has exited.
PaintTaskExited(PipelineId),
/// Alerts the compositor that the viewport has been constrained in some manner
@ -247,6 +250,7 @@ impl Debug for Msg {
Msg::RecompositeAfterScroll => write!(f, "RecompositeAfterScroll"),
Msg::KeyEvent(..) => write!(f, "KeyEvent"),
Msg::SetCursor(..) => write!(f, "SetCursor"),
Msg::CreatePng(..) => write!(f, "CreatePng"),
Msg::PaintTaskExited(..) => write!(f, "PaintTaskExited"),
Msg::ViewportConstrained(..) => write!(f, "ViewportConstrained"),
}