| // Copyright 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Note: The official spec is WIP at wiki.whatwg.org/wiki/OffscreenCanvas. |
| |
| [ |
| GarbageCollected, |
| Exposed=(Window,Worker), |
| RuntimeEnabled=ExperimentalCanvasFeatures, |
| ] interface OffscreenCanvasRenderingContext2D { |
| // back-reference to the canvas |
| [ImplementedAs=getOffscreenCanvas] readonly attribute OffscreenCanvas offscreenCanvas; |
| |
| // colors and styles |
| attribute (DOMString or CanvasGradient or CanvasPattern) strokeStyle; // (default black) |
| attribute (DOMString or CanvasGradient or CanvasPattern) fillStyle; // (default black) |
| |
| // CanvasRect interface |
| void clearRect(unrestricted double x, unrestricted double y, unrestricted double width, unrestricted double height); |
| void fillRect(unrestricted double x, unrestricted double y, unrestricted double width, unrestricted double height); |
| void strokeRect(unrestricted double x, unrestricted double y, unrestricted double width, unrestricted double height); |
| |
| // Path API (See BaseRenderingContext2D) |
| void beginPath(); |
| void fill(optional CanvasFillRule winding); |
| void fill(Path2D path, optional CanvasFillRule winding); |
| void stroke(); |
| void stroke(Path2D path); |
| |
| // Line caps/joins |
| attribute unrestricted double lineWidth; // (default 1) |
| attribute DOMString lineCap; // "butt", "round", "square" (default "butt") |
| attribute DOMString lineJoin; // "round", "bevel", "miter" (default "miter") |
| attribute unrestricted double miterLimit; // (default 10) |
| |
| // dashed lines |
| void setLineDash(sequence<unrestricted double> dash); |
| sequence<unrestricted double> getLineDash(); |
| attribute unrestricted double lineDashOffset; |
| }; |
| |
| OffscreenCanvasRenderingContext2D implements CanvasPathMethods; |