1 files changed, 79 insertions, 0 deletions
diff --git a/components/script/dom/canvasrenderingcontext2d.rs b/components/script/dom/canvasrenderingcontext2d.rs
new file mode 100644
index 00000000000..6b3f898123f
--- /dev/null
+++ b/components/script/dom/canvasrenderingcontext2d.rs
@@ -0,0 +1,79 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+use dom::bindings::codegen::Bindings::CanvasRenderingContext2DBinding;
+use dom::bindings::codegen::Bindings::CanvasRenderingContext2DBinding::CanvasRenderingContext2DMethods;
+use dom::bindings::global::{GlobalRef, GlobalField};
+use dom::bindings::js::{JS, JSRef, Temporary};
+use dom::bindings::trace::Untraceable;
+use dom::bindings::utils::{Reflector, Reflectable, reflect_dom_object};
+use dom::htmlcanvaselement::HTMLCanvasElement;
+
+use geom::point::Point2D;
+use geom::rect::Rect;
+use geom::size::Size2D;
+
+use canvas::canvas_render_task::{CanvasMsg, CanvasRenderTask, ClearRect, Close, FillRect, Recreate, StrokeRect};
+
+#[deriving(Encodable)]
+pub struct CanvasRenderingContext2D {
+    reflector_: Reflector,
+    global: GlobalField,
+    renderer: Untraceable<Sender<CanvasMsg>>,
+    canvas: JS<HTMLCanvasElement>,
+}
+
+impl CanvasRenderingContext2D {
+    pub fn new_inherited(global: &GlobalRef, canvas: &JSRef<HTMLCanvasElement>, size: Size2D<i32>) -> CanvasRenderingContext2D {
+        CanvasRenderingContext2D {
+            reflector_: Reflector::new(),
+            global: GlobalField::from_rooted(global),
+            renderer: Untraceable::new(CanvasRenderTask::start(size)),
+            canvas: JS::from_rooted(canvas),
+        }
+    }
+
+    pub fn new(global: &GlobalRef, canvas: &JSRef<HTMLCanvasElement>, size: Size2D<i32>) -> Temporary<CanvasRenderingContext2D> {
+        reflect_dom_object(box CanvasRenderingContext2D::new_inherited(global, canvas, size),
+                           global, CanvasRenderingContext2DBinding::Wrap)
+    }
+
+    pub fn recreate(&self, size: Size2D<i32>) {
+        self.renderer.send(Recreate(size));
+    }
+}
+
+impl<'a> CanvasRenderingContext2DMethods for JSRef<'a, CanvasRenderingContext2D> {
+    fn Canvas(&self) -> Temporary<HTMLCanvasElement> {
+        Temporary::new(self.canvas)
+    }
+
+    fn FillRect(&self, x: f64, y: f64, width: f64, height: f64) {
+        let rect = Rect(Point2D(x as f32, y as f32), Size2D(width as f32, height as f32));
+        self.renderer.send(FillRect(rect));
+    }
+
+    fn ClearRect(&self, x: f64, y: f64, width: f64, height: f64) {
+        let rect = Rect(Point2D(x as f32, y as f32), Size2D(width as f32, height as f32));
+        self.renderer.send(ClearRect(rect));
+    }
+
+    fn StrokeRect(&self, x: f64, y: f64, width: f64, height: f64) {
+        let rect = Rect(Point2D(x as f32, y as f32), Size2D(width as f32, height as f32));
+        self.renderer.send(StrokeRect(rect));
+    }
+}
+
+impl Reflectable for CanvasRenderingContext2D {
+    fn reflector<'a>(&'a self) -> &'a Reflector {
+        &self.reflector_
+    }
+}
+
+#[unsafe_destructor]
+impl Drop for CanvasRenderingContext2D {
+    fn drop(&mut self) {
+        self.renderer.send(Close);
+    }
+}