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Issue 1660113002: Updated to Chrome 45 (2454) moved from SVN to git. Base URL: https://github.com/dart-lang/webcore.git@roll_45
Patch Set: Created 4 years, 10 months ago
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1 /*
2 * Copyright (C) 2006 Apple Computer, Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 // http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-elemen t.html#canvasrenderingcontext2d
27
28 // FIXME: float => double throughout
29 // FIXME: Use union type in drawImage and createPattern once supported:
30 // http://crbug.com/372891
31 typedef (HTMLImageElement or
32 HTMLVideoElement or
33 HTMLCanvasElement // or
34 // CanvasRenderingContext2D or
35 // ImageBitmap
36 ) CanvasImageSource;
37
38 enum CanvasFillRule { "nonzero", "evenodd" };
39
40 [
41 TypeChecking=(Interface,Unrestricted),
42 WillBeGarbageCollected,
43 ] interface CanvasRenderingContext2D {
44 // back-reference to the canvas
45 readonly attribute HTMLCanvasElement canvas;
46
47 // state
48 void save(); // push state on state stack
49 void restore(); // pop state stack and restore state
50
51 // transformations (default transform is the identity matrix)
52 [RuntimeEnabled=ExperimentalCanvasFeatures] attribute SVGMatrix currentTrans form;
53 void scale(unrestricted float x, unrestricted float y);
54 void rotate(unrestricted float angle);
55 void translate(unrestricted float x, unrestricted float y);
56 void transform(unrestricted float a, unrestricted float b, unrestricted floa t c, unrestricted float d, unrestricted float e, unrestricted float f);
57 void setTransform(unrestricted float a, unrestricted float b, unrestricted f loat c, unrestricted float d, unrestricted float e, unrestricted float f);
58 void resetTransform();
59
60 // compositing
61 attribute unrestricted float globalAlpha; // (default 1.0)
62 [TreatNullAs=NullString] attribute DOMString globalCompositeOperation; // (d efault source-over)
63
64 // image smoothing
65 [ImplementedAs=imageSmoothingEnabled, MeasureAs=PrefixedImageSmoothingEnable d, DartSuppress] attribute boolean webkitImageSmoothingEnabled;
66 [MeasureAs=UnprefixedImageSmoothingEnabled] attribute boolean imageSmoothing Enabled;
67
68 // colors and styles (see also the CanvasDrawingStyles interface)
69 // FIXME: Use union types when supported: http://crbug.com/372891
70 [Custom] attribute object strokeStyle; // (default black)
71 [Custom] attribute object fillStyle; // (default black)
72 CanvasGradient createLinearGradient(float x0, float y0, float x1, float y1);
73 [RaisesException] CanvasGradient createRadialGradient(float x0, float y0, fl oat r0, float x1, float y1, float r1);
74 [RaisesException] CanvasPattern createPattern(HTMLCanvasElement canvas, DOMS tring? repetitionType);
75 [RaisesException] CanvasPattern createPattern(HTMLImageElement image, DOMStr ing? repetitionType);
76 [RaisesException] CanvasPattern createPattern(HTMLVideoElement image, DOMStr ing? repetitionType);
77
78 // shadows
79 attribute unrestricted float shadowOffsetX;
80 attribute unrestricted float shadowOffsetY;
81 attribute unrestricted float shadowBlur;
82 [TreatNullAs=NullString] attribute DOMString shadowColor;
83
84 // rects
85 void clearRect(unrestricted float x, unrestricted float y, unrestricted floa t width, unrestricted float height);
86 void fillRect(unrestricted float x, unrestricted float y, unrestricted float width, unrestricted float height);
87 void strokeRect(unrestricted float x, unrestricted float y, unrestricted flo at width, unrestricted float height);
88
89 // path API (see also CanvasPathMethods)
90 void beginPath();
91 void fill(optional CanvasFillRule winding);
92 void fill(Path2D path, optional CanvasFillRule winding);
93 void stroke();
94 void stroke(Path2D path);
95 // Focus rings
96 void drawFocusIfNeeded(Element element);
97 void drawFocusIfNeeded(Path2D path, Element element);
98
99 [RuntimeEnabled=ExperimentalCanvasFeatures] void scrollPathIntoView(optional Path2D path);
100 void clip(optional CanvasFillRule winding);
101 void clip(Path2D path, optional CanvasFillRule winding);
102 boolean isPointInPath(unrestricted float x, unrestricted float y, optional C anvasFillRule winding);
103 boolean isPointInPath(Path2D path, unrestricted float x, unrestricted float y, optional CanvasFillRule winding);
104 boolean isPointInStroke(unrestricted float x, unrestricted float y);
105 boolean isPointInStroke(Path2D path, unrestricted float x, unrestricted floa t y);
106
107 // text (see also the CanvasDrawingStyles interface)
108 void fillText(DOMString text, unrestricted float x, unrestricted float y, op tional unrestricted float maxWidth);
109 void strokeText(DOMString text, unrestricted float x, unrestricted float y, optional unrestricted float maxWidth);
110 TextMetrics measureText(DOMString text);
111
112 // drawing images
113 [RaisesException] void drawImage(HTMLImageElement image, unrestricted float x, unrestricted float y);
114 [RaisesException] void drawImage(HTMLImageElement image, unrestricted float x, unrestricted float y, unrestricted float width, unrestricted float height);
115 [RaisesException] void drawImage(HTMLImageElement image, unrestricted float sx, unrestricted float sy, unrestricted float sw, unrestricted float sh, unrestr icted float dx, unrestricted float dy, unrestricted float dw, unrestricted float dh);
116 [RaisesException] void drawImage(HTMLCanvasElement canvas, unrestricted floa t x, unrestricted float y);
117 [RaisesException] void drawImage(HTMLCanvasElement canvas, unrestricted floa t x, unrestricted float y, unrestricted float width, unrestricted float height);
118 [RaisesException] void drawImage(HTMLCanvasElement canvas, unrestricted floa t sx, unrestricted float sy, unrestricted float sw, unrestricted float sh, unres tricted float dx, unrestricted float dy, unrestricted float dw, unrestricted flo at dh);
119 [RaisesException] void drawImage(HTMLVideoElement video, unrestricted float x, unrestricted float y);
120 [RaisesException] void drawImage(HTMLVideoElement video, unrestricted float x, unrestricted float y, unrestricted float width, unrestricted float height);
121 [RaisesException] void drawImage(HTMLVideoElement video, unrestricted float sx, unrestricted float sy, unrestricted float sw, unrestricted float sh, unrestr icted float dx, unrestricted float dy, unrestricted float dw, unrestricted float dh);
122 [RuntimeEnabled=ExperimentalCanvasFeatures, RaisesException] void drawImage( ImageBitmap imageBitmap, unrestricted float x, unrestricted float y);
123 [RuntimeEnabled=ExperimentalCanvasFeatures, RaisesException] void drawImage( ImageBitmap imageBitmap, unrestricted float x, unrestricted float y, unrestricte d float width, unrestricted float height);
124 [RuntimeEnabled=ExperimentalCanvasFeatures, RaisesException] void drawImage( ImageBitmap imageBitmap, unrestricted float sx, unrestricted float sy, unrestric ted float sw, unrestricted float sh, unrestricted float dx, unrestricted float d y, unrestricted float dw, unrestricted float dh);
125
126 // hit regions
127 [RuntimeEnabled=ExperimentalCanvasFeatures, RaisesException] void addHitRegi on(optional HitRegionOptions options);
128 [RuntimeEnabled=ExperimentalCanvasFeatures] void removeHitRegion(DOMString i d);
129 [RuntimeEnabled=ExperimentalCanvasFeatures] void clearHitRegions();
130
131 // pixel manipulation
132 [DartName=createImageDataFromImageData] ImageData createImageData(ImageData imagedata);
133 [RaisesException] ImageData createImageData(float sw, float sh);
134 [RaisesException] ImageData getImageData(float sx, float sy, float sw, float sh);
135 void putImageData(ImageData imagedata, float dx, float dy);
136 void putImageData(ImageData imagedata, float dx, float dy, float dirtyX, flo at dirtyY, float dirtyWidth, float dirtyHeight);
137
138 // Context state
139 // Should be merged with WebGL counterpart in CanvasRenderingContext, once n o-longer experimental
140 [RuntimeEnabled=ExperimentalCanvasFeatures] boolean isContextLost();
141
142 Canvas2DContextAttributes getContextAttributes();
143
144 // FIXME: factor out to CanvasDrawingStyles
145 // line caps/joins
146 attribute unrestricted float lineWidth; // (default 1)
147 [TreatNullAs=NullString] attribute DOMString lineCap; // "butt", "round", "s quare" (default "butt")
148 [TreatNullAs=NullString] attribute DOMString lineJoin; // "round", "bevel", "miter" (default "miter")
149 attribute unrestricted float miterLimit; // (default 10)
150
151 // dashed lines
152 void setLineDash(sequence<unrestricted float> dash);
153 sequence<unrestricted float> getLineDash();
154 attribute unrestricted float lineDashOffset;
155
156 // text
157 attribute DOMString font; // (default 10px sans-serif)
158 attribute DOMString textAlign; // "start", "end", "left", "right", "center" (default: "start")
159 attribute DOMString textBaseline; // "top", "hanging", "middle", "alphabetic ", "ideographic", "bottom" (default: "alphabetic")
160 [RuntimeEnabled=ExperimentalCanvasFeatures] attribute DOMString direction; / / "inherit", "rtl", "ltr" (default: "inherit")
161
162 // Non-standard APIs. Candidates for deprecation
163 // https://developer.mozilla.org/en/docs/Web/API/CanvasRenderingContext2D
164 [MeasureAs=CanvasRenderingContext2DSetAlpha] void setAlpha(unrestricted floa t alpha);
165 [MeasureAs=CanvasRenderingContext2DSetCompositeOperation] void setCompositeO peration(DOMString compositeOperation);
166 [MeasureAs=CanvasRenderingContext2DSetLineWidth] void setLineWidth(unrestric ted float width);
167 [MeasureAs=CanvasRenderingContext2DSetLineCap] void setLineCap(DOMString cap );
168 [MeasureAs=CanvasRenderingContext2DSetLineJoin] void setLineJoin(DOMString j oin);
169 [MeasureAs=CanvasRenderingContext2DSetMiterLimit] void setMiterLimit(unrestr icted float limit);
170 [MeasureAs=CanvasRenderingContext2DClearShadow] void clearShadow();
171 [MeasureAs=CanvasRenderingContext2DSetStrokeColor] void setStrokeColor(DOMSt ring color, optional unrestricted float alpha);
172 [MeasureAs=CanvasRenderingContext2DSetStrokeColor] void setStrokeColor(unres tricted float grayLevel, optional unrestricted float alpha);
173 [MeasureAs=CanvasRenderingContext2DSetStrokeColor] void setStrokeColor(unres tricted float r, unrestricted float g, unrestricted float b, unrestricted float a);
174 [MeasureAs=CanvasRenderingContext2DSetStrokeColor] void setStrokeColor(unres tricted float c, unrestricted float m, unrestricted float y, unrestricted float k, unrestricted float a);
175 [MeasureAs=CanvasRenderingContext2DSetFillColor] void setFillColor(DOMString color, optional unrestricted float alpha);
176 [MeasureAs=CanvasRenderingContext2DSetFillColor] void setFillColor(unrestric ted float grayLevel, optional unrestricted float alpha);
177 [MeasureAs=CanvasRenderingContext2DSetFillColor] void setFillColor(unrestric ted float r, unrestricted float g, unrestricted float b, unrestricted float a);
178 [MeasureAs=CanvasRenderingContext2DSetFillColor] void setFillColor(unrestric ted float c, unrestricted float m, unrestricted float y, unrestricted float k, u nrestricted float a);
179 [MeasureAs=CanvasRenderingContext2DDrawImageFromRect] void drawImageFromRect (
180 HTMLImageElement? image, optional unrestricted float sx, optional unrest ricted float sy, optional unrestricted float sw, optional unrestricted float sh,
181 optional unrestricted float dx, optional unrestricted float dy, optional unrestricted float dw, optional unrestricted float dh, optional DOMString compo siteOperation);
182 [MeasureAs=CanvasRenderingContext2DSetShadow] void setShadow(unrestricted fl oat width, unrestricted float height, unrestricted float blur, optional DOMStrin g color, optional unrestricted float alpha);
183 [MeasureAs=CanvasRenderingContext2DSetShadow] void setShadow(unrestricted fl oat width, unrestricted float height, unrestricted float blur, unrestricted floa t grayLevel, optional unrestricted float alpha);
184 [MeasureAs=CanvasRenderingContext2DSetShadow] void setShadow(unrestricted fl oat width, unrestricted float height, unrestricted float blur, unrestricted floa t r, unrestricted float g, unrestricted float b, unrestricted float a);
185 [MeasureAs=CanvasRenderingContext2DSetShadow] void setShadow(unrestricted fl oat width, unrestricted float height, unrestricted float blur, unrestricted floa t c, unrestricted float m, unrestricted float y, unrestricted float k, unrestric ted float a);
186 };
187
188 CanvasRenderingContext2D implements CanvasPathMethods;
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