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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  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  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         CSSPropertyShapeOutside,
  58     };
  59     setCSSPropertiesEnabled(shapeProperties, WTF_ARRAY_LENGTH(shapeProperties), RuntimeEnabledFeatures::cssShapesEnabled());
  60     CSSPropertyID css3TextDecorationProperties[] = {
  61         CSSPropertyTextDecorationColor,
  62         CSSPropertyTextDecorationLine,
  63         CSSPropertyTextDecorationStyle,
  64         CSSPropertyTextUnderlinePosition,
  65     };
  66     setCSSPropertiesEnabled(css3TextDecorationProperties, WTF_ARRAY_LENGTH(css3TextDecorationProperties), RuntimeEnabledFeatures::css3TextDecorationsEnabled());
  67     CSSPropertyID css3TextProperties[] = {
  68         CSSPropertyTextAlignLast,
  69         CSSPropertyTextJustify,
  70     };
  71     setCSSPropertiesEnabled(css3TextProperties, WTF_ARRAY_LENGTH(css3TextProperties), RuntimeEnabledFeatures::css3TextEnabled());
  72     CSSPropertyID cssGridLayoutProperties[] = {
  73         CSSPropertyGridAutoColumns,
  74         CSSPropertyGridAutoRows,
  75         CSSPropertyGridTemplateColumns,
  76         CSSPropertyGridTemplateRows,
  77         CSSPropertyGridColumnStart,
  78         CSSPropertyGridColumnEnd,
  79         CSSPropertyGridRowStart,
  80         CSSPropertyGridRowEnd,
  81         CSSPropertyGridColumn,
  82         CSSPropertyGridRow,
  83         CSSPropertyGridArea,
  84         CSSPropertyGridAutoFlow,
  85         CSSPropertyGridTemplateAreas,
  86         CSSPropertyJustifySelf
  87     };
  88     setCSSPropertiesEnabled(cssGridLayoutProperties, WTF_ARRAY_LENGTH(cssGridLayoutProperties), RuntimeEnabledFeatures::cssGridLayoutEnabled());
  89     CSSPropertyID cssObjectFitPositionProperties[] = {
  90         CSSPropertyObjectFit,
  91         CSSPropertyObjectPosition
  92     };
  93     setCSSPropertiesEnabled(cssObjectFitPositionProperties, WTF_ARRAY_LENGTH(cssObjectFitPositionProperties), RuntimeEnabledFeatures::objectFitPositionEnabled());
  94
  95     CSSPropertyID animationProperties[] = {
  96         CSSPropertyAnimation,
  97         CSSPropertyAnimationName,
  98         CSSPropertyAnimationDuration,
  99         CSSPropertyAnimationTimingFunction,
 100         CSSPropertyAnimationDelay,
 101         CSSPropertyAnimationIterationCount,
 102         CSSPropertyAnimationDirection,
 103         CSSPropertyAnimationFillMode,
 104         CSSPropertyAnimationPlayState
 105     };
 106     setCSSPropertiesEnabled(animationProperties, WTF_ARRAY_LENGTH(animationProperties), RuntimeEnabledFeatures::cssAnimationUnprefixedEnabled());
 107
 108     CSSPropertyID transformProperties[] = {
 109         CSSPropertyBackfaceVisibility,
 110         CSSPropertyPerspective,
 111         CSSPropertyPerspectiveOrigin,
 112         CSSPropertyTransform,
 113         CSSPropertyTransformOrigin,
 114         CSSPropertyTransformStyle
 115     };
 116     setCSSPropertiesEnabled(transformProperties, WTF_ARRAY_LENGTH(transformProperties), RuntimeEnabledFeatures::cssTransformsUnprefixedEnabled());
 117
 118     RuntimeCSSEnabled::setCSSPropertyEnabled(CSSPropertyMixBlendMode, RuntimeEnabledFeatures::cssCompositingEnabled());
 119     RuntimeCSSEnabled::setCSSPropertyEnabled(CSSPropertyIsolation, RuntimeEnabledFeatures::cssCompositingEnabled());
 120     RuntimeCSSEnabled::setCSSPropertyEnabled(CSSPropertyTouchAction, RuntimeEnabledFeatures::cssTouchActionEnabled());
 121     RuntimeCSSEnabled::setCSSPropertyEnabled(CSSPropertyTouchActionDelay, RuntimeEnabledFeatures::cssTouchActionDelayEnabled());
 122     RuntimeCSSEnabled::setCSSPropertyEnabled(CSSPropertyPaintOrder, RuntimeEnabledFeatures::svgPaintOrderEnabled());
 123     RuntimeCSSEnabled::setCSSPropertyEnabled(CSSPropertyMaskSourceType, RuntimeEnabledFeatures::cssMaskSourceTypeEnabled());
 124     RuntimeCSSEnabled::setCSSPropertyEnabled(CSSPropertyColumnFill, RuntimeEnabledFeatures::regionBasedColumnsEnabled());
 125     RuntimeCSSEnabled::setCSSPropertyEnabled(CSSPropertyScrollBehavior, RuntimeEnabledFeatures::cssomSmoothScrollEnabled());
 126     RuntimeCSSEnabled::setCSSPropertyEnabled(CSSPropertyWillChange, RuntimeEnabledFeatures::cssWillChangeEnabled());
 127
 128     // InternalCallback is an implementation detail, rather than an experimental feature, and should never be exposed to the web.
 129     RuntimeCSSEnabled::setCSSPropertyEnabled(CSSPropertyInternalCallback, false);
 130 }
 131
 132 static BoolVector& propertySwitches()
 133 {
 134     static BoolVector* switches = 0;
 135     if (!switches) {
 136         switches = new BoolVector;
 137         switches->fill(true, numCSSProperties);
 138         setPropertySwitchesFromRuntimeFeatures();
 139     }
 140     return *switches;
 141 }
 142
 143 size_t indexForProperty(CSSPropertyID propertyId)
 144 {
 145     RELEASE_ASSERT(propertyId >= firstCSSProperty && propertyId <= lastCSSProperty);
 146     // Values all start at 0. Vector RELEASE_ASSERTS will catch if we're ever wrong.
 147     return static_cast<size_t>(propertyId - firstCSSProperty);
 148 }
 149
 150 bool RuntimeCSSEnabled::isCSSPropertyEnabled(CSSPropertyID propertyId)
 151 {
 152     // Internal properties shouldn't be exposed to the web
 153     // so they are considered to be always disabled.
 154     if (isInternalProperty(propertyId))
 155         return false;
 156
 157     return propertySwitches()[indexForProperty(propertyId)];
 158 }
 159
 160 void RuntimeCSSEnabled::setCSSPropertyEnabled(CSSPropertyID propertyId, bool enable)
 161 {
 162     propertySwitches()[indexForProperty(propertyId)] = enable;
 163 }
 164
 165 void RuntimeCSSEnabled::filterEnabledCSSPropertiesIntoVector(const CSSPropertyID* properties, size_t propertyCount, Vector<CSSPropertyID>& outVector)
 166 {
 167     for (unsigned i = 0; i < propertyCount; i++) {
 168         CSSPropertyID property = properties[i];
 169         if (RuntimeCSSEnabled::isCSSPropertyEnabled(property))
 170             outVector.append(property);
 171     }
 172 }
 173
 174 } // namespace WebCore