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webgl: Make context creation fallible. Fixes #6806

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This commit is contained in:
ecoal95 2015-07-28 16:58:53 +02:00
parent e0bd80f807
commit bc908458ff
3 changed files with 24 additions and 16 deletions
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21
components/script/dom/webglrenderingcontext.rs
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@ -64,20 +64,23 @@ impl WebGLRenderingContext {
canvas: &HTMLCanvasElement,
size: Size2D<i32>,
attrs: GLContextAttributes)
-> Result<WebGLRenderingContext, &'static str> {
-> Result<WebGLRenderingContext, String> {
let (sender, receiver) = ipc::channel().unwrap();
let constellation_chan = global.constellation_chan();
constellation_chan.0
.send(ConstellationMsg::CreateWebGLPaintTask(size, attrs, sender))
.unwrap();
let (ipc_renderer, renderer_id) = receiver.recv().unwrap();
Ok(WebGLRenderingContext {
reflector_: Reflector::new(),
global: GlobalField::from_rooted(&global),
renderer_id: renderer_id,
ipc_renderer: ipc_renderer,
last_error: Cell::new(None),
canvas: JS::from_ref(canvas),
let result = receiver.recv().unwrap();
result.map(|(ipc_renderer, renderer_id)| {
WebGLRenderingContext {
reflector_: Reflector::new(),
global: GlobalField::from_rooted(&global),
renderer_id: renderer_id,
ipc_renderer: ipc_renderer,
last_error: Cell::new(None),
canvas: JS::from_ref(canvas),
}
})
}