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1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "core/animation/css/CSSPropertyEquality.h" | |
6 | |
7 #include "core/animation/css/CSSAnimations.h" | |
8 #include "core/style/DataEquivalency.h" | |
9 #include "core/style/ComputedStyle.h" | |
10 #include "core/style/ShadowList.h" | |
11 | |
12 namespace blink { | |
13 | |
14 namespace { | |
15 | |
16 template <CSSPropertyID property> | |
17 bool fillLayersEqual(const FillLayer& aLayers, const FillLayer& bLayers) | |
18 { | |
19 const FillLayer* aLayer = &aLayers; | |
20 const FillLayer* bLayer = &bLayers; | |
21 while (aLayer && bLayer) { | |
22 switch (property) { | |
23 case CSSPropertyBackgroundPositionX: | |
24 case CSSPropertyWebkitMaskPositionX: | |
25 if (aLayer->xPosition() != bLayer->xPosition()) | |
26 return false; | |
27 break; | |
28 case CSSPropertyBackgroundPositionY: | |
29 case CSSPropertyWebkitMaskPositionY: | |
30 if (aLayer->yPosition() != bLayer->yPosition()) | |
31 return false; | |
32 break; | |
33 case CSSPropertyBackgroundSize: | |
34 case CSSPropertyWebkitMaskSize: | |
35 if (!(aLayer->sizeLength() == bLayer->sizeLength())) | |
36 return false; | |
37 break; | |
38 case CSSPropertyBackgroundImage: | |
39 if (!dataEquivalent(aLayer->image(), bLayer->image())) | |
40 return false; | |
41 break; | |
42 default: | |
43 ASSERT_NOT_REACHED(); | |
44 return true; | |
45 } | |
46 | |
47 aLayer = aLayer->next(); | |
48 bLayer = bLayer->next(); | |
49 } | |
50 | |
51 // FIXME: Shouldn't this be return !aLayer && !bLayer; ? | |
52 return true; | |
53 } | |
54 | |
55 } // namespace | |
56 | |
57 bool CSSPropertyEquality::propertiesEqual(CSSPropertyID prop, const ComputedStyl
e& a, const ComputedStyle& b) | |
58 { | |
59 switch (prop) { | |
60 case CSSPropertyBackgroundColor: | |
61 return a.backgroundColor() == b.backgroundColor() | |
62 && a.visitedLinkBackgroundColor() == b.visitedLinkBackgroundColor(); | |
63 case CSSPropertyBackgroundImage: | |
64 return fillLayersEqual<CSSPropertyBackgroundImage>(a.backgroundLayers(),
b.backgroundLayers()); | |
65 case CSSPropertyBackgroundPositionX: | |
66 return fillLayersEqual<CSSPropertyBackgroundPositionX>(a.backgroundLayer
s(), b.backgroundLayers()); | |
67 case CSSPropertyBackgroundPositionY: | |
68 return fillLayersEqual<CSSPropertyBackgroundPositionY>(a.backgroundLayer
s(), b.backgroundLayers()); | |
69 case CSSPropertyBackgroundSize: | |
70 return fillLayersEqual<CSSPropertyBackgroundSize>(a.backgroundLayers(),
b.backgroundLayers()); | |
71 case CSSPropertyBaselineShift: | |
72 return a.baselineShiftValue() == b.baselineShiftValue(); | |
73 case CSSPropertyBorderBottomColor: | |
74 return a.borderBottomColor() == b.borderBottomColor() | |
75 && a.visitedLinkBorderBottomColor() == b.visitedLinkBorderBottomColo
r(); | |
76 case CSSPropertyBorderBottomLeftRadius: | |
77 return a.borderBottomLeftRadius() == b.borderBottomLeftRadius(); | |
78 case CSSPropertyBorderBottomRightRadius: | |
79 return a.borderBottomRightRadius() == b.borderBottomRightRadius(); | |
80 case CSSPropertyBorderBottomWidth: | |
81 return a.borderBottomWidth() == b.borderBottomWidth(); | |
82 case CSSPropertyBorderImageOutset: | |
83 return a.borderImageOutset() == b.borderImageOutset(); | |
84 case CSSPropertyBorderImageSlice: | |
85 return a.borderImageSlices() == b.borderImageSlices(); | |
86 case CSSPropertyBorderImageSource: | |
87 return dataEquivalent(a.borderImageSource(), b.borderImageSource()); | |
88 case CSSPropertyBorderImageWidth: | |
89 return a.borderImageWidth() == b.borderImageWidth(); | |
90 case CSSPropertyBorderLeftColor: | |
91 return a.borderLeftColor() == b.borderLeftColor() | |
92 && a.visitedLinkBorderLeftColor() == b.visitedLinkBorderLeftColor(); | |
93 case CSSPropertyBorderLeftWidth: | |
94 return a.borderLeftWidth() == b.borderLeftWidth(); | |
95 case CSSPropertyBorderRightColor: | |
96 return a.borderRightColor() == b.borderRightColor() | |
97 && a.visitedLinkBorderRightColor() == b.visitedLinkBorderRightColor(
); | |
98 case CSSPropertyBorderRightWidth: | |
99 return a.borderRightWidth() == b.borderRightWidth(); | |
100 case CSSPropertyBorderTopColor: | |
101 return a.borderTopColor() == b.borderTopColor() | |
102 && a.visitedLinkBorderTopColor() == b.visitedLinkBorderTopColor(); | |
103 case CSSPropertyBorderTopLeftRadius: | |
104 return a.borderTopLeftRadius() == b.borderTopLeftRadius(); | |
105 case CSSPropertyBorderTopRightRadius: | |
106 return a.borderTopRightRadius() == b.borderTopRightRadius(); | |
107 case CSSPropertyBorderTopWidth: | |
108 return a.borderTopWidth() == b.borderTopWidth(); | |
109 case CSSPropertyBottom: | |
110 return a.bottom() == b.bottom(); | |
111 case CSSPropertyBoxShadow: | |
112 return dataEquivalent(a.boxShadow(), b.boxShadow()); | |
113 case CSSPropertyClip: | |
114 return a.clip() == b.clip(); | |
115 case CSSPropertyColor: | |
116 return a.color() == b.color() && a.visitedLinkColor() == b.visitedLinkCo
lor(); | |
117 case CSSPropertyFill: { | |
118 const SVGComputedStyle& aSVG = a.svgStyle(); | |
119 const SVGComputedStyle& bSVG = b.svgStyle(); | |
120 return aSVG.fillPaintType() == bSVG.fillPaintType() | |
121 && (aSVG.fillPaintType() != SVG_PAINTTYPE_RGBCOLOR || aSVG.fillPaint
Color() == bSVG.fillPaintColor()) | |
122 && aSVG.visitedLinkFillPaintType() == bSVG.visitedLinkFillPaintType(
) | |
123 && (aSVG.visitedLinkFillPaintType() != SVG_PAINTTYPE_RGBCOLOR || aSV
G.visitedLinkFillPaintColor() == bSVG.visitedLinkFillPaintColor()); | |
124 } | |
125 case CSSPropertyFillOpacity: | |
126 return a.fillOpacity() == b.fillOpacity(); | |
127 case CSSPropertyFlexBasis: | |
128 return a.flexBasis() == b.flexBasis(); | |
129 case CSSPropertyFlexGrow: | |
130 return a.flexGrow() == b.flexGrow(); | |
131 case CSSPropertyFlexShrink: | |
132 return a.flexShrink() == b.flexShrink(); | |
133 case CSSPropertyFloodColor: | |
134 return a.floodColor() == b.floodColor(); | |
135 case CSSPropertyFloodOpacity: | |
136 return a.floodOpacity() == b.floodOpacity(); | |
137 case CSSPropertyFontSize: | |
138 // CSSPropertyFontSize: Must pass a specified size to setFontSize if Tex
t Autosizing is enabled, but a computed size | |
139 // if text zoom is enabled (if neither is enabled it's irrelevant as the
y're probably the same). | |
140 // FIXME: Should we introduce an option to pass the computed font size h
ere, allowing consumers to | |
141 // enable text zoom rather than Text Autosizing? See http://crbug.com/22
7545. | |
142 return a.specifiedFontSize() == b.specifiedFontSize(); | |
143 case CSSPropertyFontSizeAdjust: | |
144 return a.fontSizeAdjust() == b.fontSizeAdjust(); | |
145 case CSSPropertyFontStretch: | |
146 return a.fontStretch() == b.fontStretch(); | |
147 case CSSPropertyFontWeight: | |
148 return a.fontWeight() == b.fontWeight(); | |
149 case CSSPropertyHeight: | |
150 return a.height() == b.height(); | |
151 case CSSPropertyLeft: | |
152 return a.left() == b.left(); | |
153 case CSSPropertyLetterSpacing: | |
154 return a.letterSpacing() == b.letterSpacing(); | |
155 case CSSPropertyLightingColor: | |
156 return a.lightingColor() == b.lightingColor(); | |
157 case CSSPropertyLineHeight: | |
158 return a.specifiedLineHeight() == b.specifiedLineHeight(); | |
159 case CSSPropertyListStyleImage: | |
160 return dataEquivalent(a.listStyleImage(), b.listStyleImage()); | |
161 case CSSPropertyMarginBottom: | |
162 return a.marginBottom() == b.marginBottom(); | |
163 case CSSPropertyMarginLeft: | |
164 return a.marginLeft() == b.marginLeft(); | |
165 case CSSPropertyMarginRight: | |
166 return a.marginRight() == b.marginRight(); | |
167 case CSSPropertyMarginTop: | |
168 return a.marginTop() == b.marginTop(); | |
169 case CSSPropertyMaxHeight: | |
170 return a.maxHeight() == b.maxHeight(); | |
171 case CSSPropertyMaxWidth: | |
172 return a.maxWidth() == b.maxWidth(); | |
173 case CSSPropertyMinHeight: | |
174 return a.minHeight() == b.minHeight(); | |
175 case CSSPropertyMinWidth: | |
176 return a.minWidth() == b.minWidth(); | |
177 case CSSPropertyMotionOffset: | |
178 return a.motionOffset() == b.motionOffset(); | |
179 case CSSPropertyMotionRotation: | |
180 return a.motionRotation() == b.motionRotation(); | |
181 case CSSPropertyObjectPosition: | |
182 return a.objectPosition() == b.objectPosition(); | |
183 case CSSPropertyOpacity: | |
184 return a.opacity() == b.opacity(); | |
185 case CSSPropertyOrphans: | |
186 return a.orphans() == b.orphans(); | |
187 case CSSPropertyOutlineColor: | |
188 return a.outlineColor() == b.outlineColor() | |
189 && a.visitedLinkOutlineColor() == b.visitedLinkOutlineColor(); | |
190 case CSSPropertyOutlineOffset: | |
191 return a.outlineOffset() == b.outlineOffset(); | |
192 case CSSPropertyOutlineWidth: | |
193 return a.outlineWidth() == b.outlineWidth(); | |
194 case CSSPropertyPaddingBottom: | |
195 return a.paddingBottom() == b.paddingBottom(); | |
196 case CSSPropertyPaddingLeft: | |
197 return a.paddingLeft() == b.paddingLeft(); | |
198 case CSSPropertyPaddingRight: | |
199 return a.paddingRight() == b.paddingRight(); | |
200 case CSSPropertyPaddingTop: | |
201 return a.paddingTop() == b.paddingTop(); | |
202 case CSSPropertyRight: | |
203 return a.right() == b.right(); | |
204 case CSSPropertyShapeImageThreshold: | |
205 return a.shapeImageThreshold() == b.shapeImageThreshold(); | |
206 case CSSPropertyShapeMargin: | |
207 return a.shapeMargin() == b.shapeMargin(); | |
208 case CSSPropertyShapeOutside: | |
209 return dataEquivalent(a.shapeOutside(), b.shapeOutside()); | |
210 case CSSPropertyStopColor: | |
211 return a.stopColor() == b.stopColor(); | |
212 case CSSPropertyStopOpacity: | |
213 return a.stopOpacity() == b.stopOpacity(); | |
214 case CSSPropertyStroke: { | |
215 const SVGComputedStyle& aSVG = a.svgStyle(); | |
216 const SVGComputedStyle& bSVG = b.svgStyle(); | |
217 return aSVG.strokePaintType() == bSVG.strokePaintType() | |
218 && (aSVG.strokePaintType() != SVG_PAINTTYPE_RGBCOLOR || aSVG.strokeP
aintColor() == bSVG.strokePaintColor()) | |
219 && aSVG.visitedLinkStrokePaintType() == bSVG.visitedLinkStrokePaintT
ype() | |
220 && (aSVG.visitedLinkStrokePaintType() != SVG_PAINTTYPE_RGBCOLOR || a
SVG.visitedLinkStrokePaintColor() == bSVG.visitedLinkStrokePaintColor()); | |
221 } | |
222 case CSSPropertyStrokeDasharray: | |
223 return a.strokeDashArray() == b.strokeDashArray(); | |
224 case CSSPropertyStrokeDashoffset: | |
225 return a.strokeDashOffset() == b.strokeDashOffset(); | |
226 case CSSPropertyStrokeMiterlimit: | |
227 return a.strokeMiterLimit() == b.strokeMiterLimit(); | |
228 case CSSPropertyStrokeOpacity: | |
229 return a.strokeOpacity() == b.strokeOpacity(); | |
230 case CSSPropertyStrokeWidth: | |
231 return a.strokeWidth() == b.strokeWidth(); | |
232 case CSSPropertyTextDecorationColor: | |
233 return a.textDecorationColor() == b.textDecorationColor() | |
234 && a.visitedLinkTextDecorationColor() == b.visitedLinkTextDecoration
Color(); | |
235 case CSSPropertyTextIndent: | |
236 return a.textIndent() == b.textIndent(); | |
237 case CSSPropertyTextShadow: | |
238 return dataEquivalent(a.textShadow(), b.textShadow()); | |
239 case CSSPropertyTop: | |
240 return a.top() == b.top(); | |
241 case CSSPropertyVerticalAlign: | |
242 return a.verticalAlign() == b.verticalAlign() | |
243 && (a.verticalAlign() != VerticalAlignLength || a.getVerticalAlignLe
ngth() == b.getVerticalAlignLength()); | |
244 case CSSPropertyVisibility: | |
245 return a.visibility() == b.visibility(); | |
246 case CSSPropertyWebkitBorderHorizontalSpacing: | |
247 return a.horizontalBorderSpacing() == b.horizontalBorderSpacing(); | |
248 case CSSPropertyWebkitBorderVerticalSpacing: | |
249 return a.verticalBorderSpacing() == b.verticalBorderSpacing(); | |
250 case CSSPropertyWebkitClipPath: | |
251 return dataEquivalent(a.clipPath(), b.clipPath()); | |
252 case CSSPropertyColumnCount: | |
253 return a.columnCount() == b.columnCount(); | |
254 case CSSPropertyColumnGap: | |
255 return a.columnGap() == b.columnGap(); | |
256 case CSSPropertyColumnRuleColor: | |
257 return a.columnRuleColor() == b.columnRuleColor() | |
258 && a.visitedLinkColumnRuleColor() == b.visitedLinkColumnRuleColor(); | |
259 case CSSPropertyColumnRuleWidth: | |
260 return a.columnRuleWidth() == b.columnRuleWidth(); | |
261 case CSSPropertyColumnWidth: | |
262 return a.columnWidth() == b.columnWidth(); | |
263 case CSSPropertyWebkitFilter: | |
264 return a.filter() == b.filter(); | |
265 case CSSPropertyBackdropFilter: | |
266 return a.backdropFilter() == b.backdropFilter(); | |
267 case CSSPropertyWebkitMaskBoxImageOutset: | |
268 return a.maskBoxImageOutset() == b.maskBoxImageOutset(); | |
269 case CSSPropertyWebkitMaskBoxImageSlice: | |
270 return a.maskBoxImageSlices() == b.maskBoxImageSlices(); | |
271 case CSSPropertyWebkitMaskBoxImageSource: | |
272 return dataEquivalent(a.maskBoxImageSource(), b.maskBoxImageSource()); | |
273 case CSSPropertyWebkitMaskBoxImageWidth: | |
274 return a.maskBoxImageWidth() == b.maskBoxImageWidth(); | |
275 case CSSPropertyWebkitMaskImage: | |
276 return dataEquivalent(a.maskImage(), b.maskImage()); | |
277 case CSSPropertyWebkitMaskPositionX: | |
278 return fillLayersEqual<CSSPropertyWebkitMaskPositionX>(a.maskLayers(), b
.maskLayers()); | |
279 case CSSPropertyWebkitMaskPositionY: | |
280 return fillLayersEqual<CSSPropertyWebkitMaskPositionY>(a.maskLayers(), b
.maskLayers()); | |
281 case CSSPropertyWebkitMaskSize: | |
282 return fillLayersEqual<CSSPropertyWebkitMaskSize>(a.maskLayers(), b.mask
Layers()); | |
283 case CSSPropertyPerspective: | |
284 return a.perspective() == b.perspective(); | |
285 case CSSPropertyPerspectiveOrigin: | |
286 return a.perspectiveOriginX() == b.perspectiveOriginX() && a.perspective
OriginY() == b.perspectiveOriginY(); | |
287 case CSSPropertyWebkitTextStrokeColor: | |
288 return a.textStrokeColor() == b.textStrokeColor() | |
289 && a.visitedLinkTextStrokeColor() == b.visitedLinkTextStrokeColor(); | |
290 case CSSPropertyTransform: | |
291 return a.transform() == b.transform(); | |
292 case CSSPropertyTranslate: | |
293 return dataEquivalent<TransformOperation>(a.translate(), b.translate()); | |
294 case CSSPropertyRotate: | |
295 return dataEquivalent<TransformOperation>(a.rotate(), b.rotate()); | |
296 case CSSPropertyScale: | |
297 return dataEquivalent<TransformOperation>(a.scale(), b.scale()); | |
298 case CSSPropertyTransformOrigin: | |
299 return a.transformOriginX() == b.transformOriginX() && a.transformOrigin
Y() == b.transformOriginY() && a.transformOriginZ() == b.transformOriginZ(); | |
300 case CSSPropertyWebkitPerspectiveOriginX: | |
301 return a.perspectiveOriginX() == b.perspectiveOriginX(); | |
302 case CSSPropertyWebkitPerspectiveOriginY: | |
303 return a.perspectiveOriginY() == b.perspectiveOriginY(); | |
304 case CSSPropertyWebkitTransformOriginX: | |
305 return a.transformOriginX() == b.transformOriginX(); | |
306 case CSSPropertyWebkitTransformOriginY: | |
307 return a.transformOriginY() == b.transformOriginY(); | |
308 case CSSPropertyWebkitTransformOriginZ: | |
309 return a.transformOriginZ() == b.transformOriginZ(); | |
310 case CSSPropertyWidows: | |
311 return a.widows() == b.widows(); | |
312 case CSSPropertyWidth: | |
313 return a.width() == b.width(); | |
314 case CSSPropertyWordSpacing: | |
315 return a.wordSpacing() == b.wordSpacing(); | |
316 case CSSPropertyD: | |
317 return dataEquivalent(a.svgStyle().d(), b.svgStyle().d()); | |
318 case CSSPropertyCx: | |
319 return a.svgStyle().cx() == b.svgStyle().cx(); | |
320 case CSSPropertyCy: | |
321 return a.svgStyle().cy() == b.svgStyle().cy(); | |
322 case CSSPropertyX: | |
323 return a.svgStyle().x() == b.svgStyle().x(); | |
324 case CSSPropertyY: | |
325 return a.svgStyle().y() == b.svgStyle().y(); | |
326 case CSSPropertyR: | |
327 return a.svgStyle().r() == b.svgStyle().r(); | |
328 case CSSPropertyRx: | |
329 return a.svgStyle().rx() == b.svgStyle().rx(); | |
330 case CSSPropertyRy: | |
331 return a.svgStyle().ry() == b.svgStyle().ry(); | |
332 case CSSPropertyZIndex: | |
333 return a.hasAutoZIndex() == b.hasAutoZIndex() && (a.hasAutoZIndex() || a
.zIndex() == b.zIndex()); | |
334 default: | |
335 ASSERT_NOT_REACHED(); | |
336 return true; | |
337 } | |
338 } | |
339 | |
340 } // namespace blink | |
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