src/third_party/WebKit/Source/core/css/RuntimeCSSEnabled.cpp

   1 /*
   2  * Copyright (C) 2013 Adobe Systems Incorporated. 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  *
   8  * 1. Redistributions of source code must retain the above
   9  *    copyright notice, this list of conditions and the following
  10  *    disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above
  12  *    copyright notice, this list of conditions and the following
  13  *    disclaimer in the documentation and/or other materials
  14  *    provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  17  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  18  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  19  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  20  * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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  25  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  26  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  27  * OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #include "config.h"
  31 #include "core/css/RuntimeCSSEnabled.h"
  32
  33 #include "RuntimeEnabledFeatures.h"
  34
  35 namespace WebCore {
  36
  37 // FIXME: We should use a real BitVector class instead!
  38 typedef Vector<bool> BoolVector;
  39
  40 static void setCSSPropertiesEnabled(CSSPropertyID* properties, size_t length, bool featureFlag)
  41 {
  42     for (size_t i = 0; i < length; i++)
  43         RuntimeCSSEnabled::setCSSPropertyEnabled(properties[i], featureFlag);
  44 }
  45
  46 static void setPropertySwitchesFromRuntimeFeatures()
  47 {
  48     CSSPropertyID exclusionProperties[] = {
  49         CSSPropertyWebkitWrapFlow,
  50         CSSPropertyWebkitWrapThrough,
  51     };
  52     setCSSPropertiesEnabled(exclusionProperties, WTF_ARRAY_LENGTH(exclusionProperties), RuntimeEnabledFeatures::cssExclusionsEnabled());
  53     CSSPropertyID shapeProperties[] = {
  54         CSSPropertyShapeMargin,
  55         CSSPropertyShapePadding,
  56         CSSPropertyShapeImageThreshold,
  57         CSSPropertyShapeInside,
  58         CSSPropertyShapeOutside,
  59     };
  60     setCSSPropertiesEnabled(shapeProperties, WTF_ARRAY_LENGTH(shapeProperties), RuntimeEnabledFeatures::cssShapesEnabled());
  61     CSSPropertyID css3TextDecorationProperties[] = {
  62         CSSPropertyTextDecorationColor,
  63         CSSPropertyTextDecorationLine,
  64         CSSPropertyTextDecorationStyle,
  65         CSSPropertyTextUnderlinePosition,
  66     };
  67     setCSSPropertiesEnabled(css3TextDecorationProperties, WTF_ARRAY_LENGTH(css3TextDecorationProperties), RuntimeEnabledFeatures::css3TextDecorationsEnabled());
  68     CSSPropertyID css3TextProperties[] = {
  69         CSSPropertyTextAlignLast,
  70         CSSPropertyTextJustify,
  71     };
  72     setCSSPropertiesEnabled(css3TextProperties, WTF_ARRAY_LENGTH(css3TextProperties), RuntimeEnabledFeatures::css3TextEnabled());
  73     CSSPropertyID cssGridLayoutProperties[] = {
  74         CSSPropertyGridAutoColumns,
  75         CSSPropertyGridAutoRows,
  76         CSSPropertyGridTemplateColumns,
  77         CSSPropertyGridTemplateRows,
  78         CSSPropertyGridColumnStart,
  79         CSSPropertyGridColumnEnd,
  80         CSSPropertyGridRowStart,
  81         CSSPropertyGridRowEnd,
  82         CSSPropertyGridColumn,
  83         CSSPropertyGridRow,
  84         CSSPropertyGridArea,
  85         CSSPropertyGridAutoFlow,
  86         CSSPropertyGridTemplateAreas,
  87         CSSPropertyJustifySelf
  88     };
  89     setCSSPropertiesEnabled(cssGridLayoutProperties, WTF_ARRAY_LENGTH(cssGridLayoutProperties), RuntimeEnabledFeatures::cssGridLayoutEnabled());
  90     CSSPropertyID cssObjectFitPositionProperties[] = {
  91         CSSPropertyObjectFit,
  92         CSSPropertyObjectPosition
  93     };
  94     setCSSPropertiesEnabled(cssObjectFitPositionProperties, WTF_ARRAY_LENGTH(cssObjectFitPositionProperties), RuntimeEnabledFeatures::objectFitPositionEnabled());
  95
  96     CSSPropertyID animationProperties[] = {
  97         CSSPropertyAnimation,
  98         CSSPropertyAnimationName,
  99         CSSPropertyAnimationDuration,
 100         CSSPropertyAnimationTimingFunction,
 101         CSSPropertyAnimationDelay,
 102         CSSPropertyAnimationIterationCount,
 103         CSSPropertyAnimationDirection,
 104         CSSPropertyAnimationFillMode,
 105         CSSPropertyAnimationPlayState
 106     };
 107     setCSSPropertiesEnabled(animationProperties, WTF_ARRAY_LENGTH(animationProperties), RuntimeEnabledFeatures::cssAnimationUnprefixedEnabled());
 108
 109     RuntimeCSSEnabled::setCSSPropertyEnabled(CSSPropertyBackgroundBlendMode, RuntimeEnabledFeatures::cssCompositingEnabled());
 110     RuntimeCSSEnabled::setCSSPropertyEnabled(CSSPropertyMixBlendMode, RuntimeEnabledFeatures::cssCompositingEnabled());
 111     RuntimeCSSEnabled::setCSSPropertyEnabled(CSSPropertyIsolation, RuntimeEnabledFeatures::cssCompositingEnabled());
 112     RuntimeCSSEnabled::setCSSPropertyEnabled(CSSPropertyTouchAction, RuntimeEnabledFeatures::cssTouchActionEnabled());
 113     RuntimeCSSEnabled::setCSSPropertyEnabled(CSSPropertyTouchActionDelay, RuntimeEnabledFeatures::cssTouchActionDelayEnabled());
 114     RuntimeCSSEnabled::setCSSPropertyEnabled(CSSPropertyPaintOrder, RuntimeEnabledFeatures::svgPaintOrderEnabled());
 115     RuntimeCSSEnabled::setCSSPropertyEnabled(CSSPropertyMaskSourceType, RuntimeEnabledFeatures::cssMaskSourceTypeEnabled());
 116     RuntimeCSSEnabled::setCSSPropertyEnabled(CSSPropertyColumnFill, RuntimeEnabledFeatures::regionBasedColumnsEnabled());
 117     RuntimeCSSEnabled::setCSSPropertyEnabled(CSSPropertyScrollBehavior, RuntimeEnabledFeatures::cssomSmoothScrollEnabled());
 118
 119     // InternalCallback is an implementation detail, rather than an experimental feature, and should never be exposed to the web.
 120     RuntimeCSSEnabled::setCSSPropertyEnabled(CSSPropertyInternalCallback, false);
 121 }
 122
 123 static BoolVector& propertySwitches()
 124 {
 125     static BoolVector* switches = 0;
 126     if (!switches) {
 127         switches = new BoolVector;
 128         switches->fill(true, numCSSProperties);
 129         setPropertySwitchesFromRuntimeFeatures();
 130     }
 131     return *switches;
 132 }
 133
 134 size_t indexForProperty(CSSPropertyID propertyId)
 135 {
 136     RELEASE_ASSERT(propertyId >= firstCSSProperty && propertyId <= lastCSSProperty);
 137     // Values all start at 0. Vector RELEASE_ASSERTS will catch if we're ever wrong.
 138     return static_cast<size_t>(propertyId - firstCSSProperty);
 139 }
 140
 141 bool RuntimeCSSEnabled::isCSSPropertyEnabled(CSSPropertyID propertyId)
 142 {
 143     // Internal properties shouldn't be exposed to the web
 144     // so they are considered to be always disabled.
 145     if (isInternalProperty(propertyId))
 146         return false;
 147
 148     return propertySwitches()[indexForProperty(propertyId)];
 149 }
 150
 151 void RuntimeCSSEnabled::setCSSPropertyEnabled(CSSPropertyID propertyId, bool enable)
 152 {
 153     propertySwitches()[indexForProperty(propertyId)] = enable;
 154 }
 155
 156 void RuntimeCSSEnabled::filterEnabledCSSPropertiesIntoVector(const CSSPropertyID* properties, size_t propertyCount, Vector<CSSPropertyID>& outVector)
 157 {
 158     for (unsigned i = 0; i < propertyCount; i++) {
 159         CSSPropertyID property = properties[i];
 160         if (RuntimeCSSEnabled::isCSSPropertyEnabled(property))
 161             outVector.append(property);
 162     }
 163 }
 164
 165 } // namespace WebCore