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| 1 /* | |
| 2 * Copyright (C) 2007-2011 Google 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 are | |
| 6 * met: | |
| 7 * | |
| 8 * * Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * * Redistributions in binary form must reproduce the above | |
| 11 * copyright notice, this list of conditions and the following disclaimer | |
| 12 * in the documentation and/or other materials provided with the | |
| 13 * distribution. | |
| 14 * * Neither the name of Google Inc. nor the names of its | |
| 15 * contributors may be used to endorse or promote products derived from | |
| 16 * this software without specific prior written permission. | |
| 17 * | |
| 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 */ | |
| 30 | |
| 31 #include "sky/engine/config.h" | |
| 32 #include "bindings/core/v8/V8CSSStyleDeclaration.h" | |
| 33 | |
| 34 #include "gen/sky/core/CSSPropertyNames.h" | |
| 35 #include "sky/engine/bindings/core/v8/ExceptionState.h" | |
| 36 #include "sky/engine/bindings/core/v8/V8Binding.h" | |
| 37 #include "sky/engine/core/css/CSSPrimitiveValue.h" | |
| 38 #include "sky/engine/core/css/CSSPropertyMetadata.h" | |
| 39 #include "sky/engine/core/css/CSSStyleDeclaration.h" | |
| 40 #include "sky/engine/core/css/CSSValue.h" | |
| 41 #include "sky/engine/core/css/parser/BisonCSSParser.h" | |
| 42 #include "sky/engine/core/events/EventTarget.h" | |
| 43 #include "sky/engine/wtf/ASCIICType.h" | |
| 44 #include "sky/engine/wtf/PassRefPtr.h" | |
| 45 #include "sky/engine/wtf/RefPtr.h" | |
| 46 #include "sky/engine/wtf/StdLibExtras.h" | |
| 47 #include "sky/engine/wtf/Vector.h" | |
| 48 #include "sky/engine/wtf/text/StringBuilder.h" | |
| 49 #include "sky/engine/wtf/text/StringConcatenate.h" | |
| 50 | |
| 51 using namespace WTF; | |
| 52 | |
| 53 namespace blink { | |
| 54 | |
| 55 // Check for a CSS prefix. | |
| 56 // Passed prefix is all lowercase. | |
| 57 // First character of the prefix within the property name may be upper or lowerc
ase. | |
| 58 // Other characters in the prefix within the property name must be lowercase. | |
| 59 // The prefix within the property name must be followed by a capital letter. | |
| 60 static bool hasCSSPropertyNamePrefix(const String& propertyName, const char* pre
fix) | |
| 61 { | |
| 62 #if ENABLE(ASSERT) | |
| 63 ASSERT(*prefix); | |
| 64 for (const char* p = prefix; *p; ++p) | |
| 65 ASSERT(isASCIILower(*p)); | |
| 66 ASSERT(propertyName.length()); | |
| 67 #endif | |
| 68 | |
| 69 if (toASCIILower(propertyName[0]) != prefix[0]) | |
| 70 return false; | |
| 71 | |
| 72 unsigned length = propertyName.length(); | |
| 73 for (unsigned i = 1; i < length; ++i) { | |
| 74 if (!prefix[i]) | |
| 75 return isASCIIUpper(propertyName[i]); | |
| 76 if (propertyName[i] != prefix[i]) | |
| 77 return false; | |
| 78 } | |
| 79 return false; | |
| 80 } | |
| 81 | |
| 82 struct CSSPropertyInfo { | |
| 83 CSSPropertyID propID; | |
| 84 }; | |
| 85 | |
| 86 static CSSPropertyID cssResolvedPropertyID(const String& propertyName) | |
| 87 { | |
| 88 unsigned length = propertyName.length(); | |
| 89 if (!length) | |
| 90 return CSSPropertyInvalid; | |
| 91 | |
| 92 StringBuilder builder; | |
| 93 builder.reserveCapacity(length); | |
| 94 | |
| 95 unsigned i = 0; | |
| 96 bool hasSeenDash = false; | |
| 97 | |
| 98 if (hasCSSPropertyNamePrefix(propertyName, "css")) | |
| 99 i += 3; | |
| 100 else if (hasCSSPropertyNamePrefix(propertyName, "webkit")) | |
| 101 builder.append('-'); | |
| 102 else if (isASCIIUpper(propertyName[0])) | |
| 103 return CSSPropertyInvalid; | |
| 104 | |
| 105 bool hasSeenUpper = isASCIIUpper(propertyName[i]); | |
| 106 | |
| 107 builder.append(toASCIILower(propertyName[i++])); | |
| 108 | |
| 109 for (; i < length; ++i) { | |
| 110 UChar c = propertyName[i]; | |
| 111 if (!isASCIIUpper(c)) { | |
| 112 if (c == '-') | |
| 113 hasSeenDash = true; | |
| 114 builder.append(c); | |
| 115 } else { | |
| 116 hasSeenUpper = true; | |
| 117 builder.append('-'); | |
| 118 builder.append(toASCIILower(c)); | |
| 119 } | |
| 120 } | |
| 121 | |
| 122 // Reject names containing both dashes and upper-case characters, such as "b
order-rightColor". | |
| 123 if (hasSeenDash && hasSeenUpper) | |
| 124 return CSSPropertyInvalid; | |
| 125 | |
| 126 String propName = builder.toString(); | |
| 127 return cssPropertyID(propName); | |
| 128 } | |
| 129 | |
| 130 // When getting properties on CSSStyleDeclarations, the name used from | |
| 131 // Javascript and the actual name of the property are not the same, so | |
| 132 // we have to do the following translation. The translation turns upper | |
| 133 // case characters into lower case characters and inserts dashes to | |
| 134 // separate words. | |
| 135 // | |
| 136 // Example: 'backgroundPositionY' -> 'background-position-y' | |
| 137 // | |
| 138 // Also, certain prefixes such as 'css-' are stripped. | |
| 139 static CSSPropertyInfo* cssPropertyInfo(v8::Handle<v8::String> v8PropertyName) | |
| 140 { | |
| 141 String propertyName = toCoreString(v8PropertyName); | |
| 142 typedef HashMap<String, CSSPropertyInfo*> CSSPropertyInfoMap; | |
| 143 DEFINE_STATIC_LOCAL(CSSPropertyInfoMap, map, ()); | |
| 144 CSSPropertyInfo* propInfo = map.get(propertyName); | |
| 145 if (!propInfo) { | |
| 146 propInfo = new CSSPropertyInfo(); | |
| 147 propInfo->propID = cssResolvedPropertyID(propertyName); | |
| 148 map.add(propertyName, propInfo); | |
| 149 } | |
| 150 if (!propInfo->propID) | |
| 151 return 0; | |
| 152 ASSERT(CSSPropertyMetadata::isEnabledProperty(propInfo->propID)); | |
| 153 return propInfo; | |
| 154 } | |
| 155 | |
| 156 void V8CSSStyleDeclaration::namedPropertyEnumeratorCustom(const v8::PropertyCall
backInfo<v8::Array>& info) | |
| 157 { | |
| 158 typedef Vector<String, numCSSProperties - 1> PreAllocatedPropertyVector; | |
| 159 DEFINE_STATIC_LOCAL(PreAllocatedPropertyVector, propertyNames, ()); | |
| 160 static unsigned propertyNamesLength = 0; | |
| 161 | |
| 162 if (propertyNames.isEmpty()) { | |
| 163 for (int id = firstCSSProperty; id <= lastCSSProperty; ++id) { | |
| 164 CSSPropertyID propertyId = static_cast<CSSPropertyID>(id); | |
| 165 if (CSSPropertyMetadata::isEnabledProperty(propertyId)) | |
| 166 propertyNames.append(getJSPropertyName(propertyId)); | |
| 167 } | |
| 168 std::sort(propertyNames.begin(), propertyNames.end(), codePointCompareLe
ssThan); | |
| 169 propertyNamesLength = propertyNames.size(); | |
| 170 } | |
| 171 | |
| 172 v8::Handle<v8::Array> properties = v8::Array::New(info.GetIsolate(), propert
yNamesLength); | |
| 173 for (unsigned i = 0; i < propertyNamesLength; ++i) { | |
| 174 String key = propertyNames.at(i); | |
| 175 ASSERT(!key.isNull()); | |
| 176 properties->Set(v8::Integer::New(info.GetIsolate(), i), v8String(info.Ge
tIsolate(), key)); | |
| 177 } | |
| 178 | |
| 179 v8SetReturnValue(info, properties); | |
| 180 } | |
| 181 | |
| 182 void V8CSSStyleDeclaration::namedPropertyQueryCustom(v8::Local<v8::String> v8Nam
e, const v8::PropertyCallbackInfo<v8::Integer>& info) | |
| 183 { | |
| 184 // NOTE: cssPropertyInfo lookups incur several mallocs. | |
| 185 // Successful lookups have the same cost the first time, but are cached. | |
| 186 if (cssPropertyInfo(v8Name)) { | |
| 187 v8SetReturnValueInt(info, 0); | |
| 188 return; | |
| 189 } | |
| 190 } | |
| 191 | |
| 192 void V8CSSStyleDeclaration::namedPropertyGetterCustom(v8::Local<v8::String> name
, const v8::PropertyCallbackInfo<v8::Value>& info) | |
| 193 { | |
| 194 // First look for API defined attributes on the style declaration object. | |
| 195 if (info.Holder()->HasRealNamedCallbackProperty(name)) | |
| 196 return; | |
| 197 | |
| 198 // Search the style declaration. | |
| 199 CSSPropertyInfo* propInfo = cssPropertyInfo(name); | |
| 200 | |
| 201 // Do not handle non-property names. | |
| 202 if (!propInfo) | |
| 203 return; | |
| 204 | |
| 205 CSSStyleDeclaration* impl = V8CSSStyleDeclaration::toNative(info.Holder()); | |
| 206 RefPtr<CSSValue> cssValue = impl->getPropertyCSSValueInternal(static_cast<CS
SPropertyID>(propInfo->propID)); | |
| 207 if (cssValue) { | |
| 208 v8SetReturnValueStringOrNull(info, cssValue->cssText(), info.GetIsolate(
)); | |
| 209 return; | |
| 210 } | |
| 211 | |
| 212 String result = impl->getPropertyValueInternal(static_cast<CSSPropertyID>(pr
opInfo->propID)); | |
| 213 v8SetReturnValueString(info, result, info.GetIsolate()); | |
| 214 } | |
| 215 | |
| 216 void V8CSSStyleDeclaration::namedPropertySetterCustom(v8::Local<v8::String> name
, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info) | |
| 217 { | |
| 218 CSSStyleDeclaration* impl = V8CSSStyleDeclaration::toNative(info.Holder()); | |
| 219 CSSPropertyInfo* propInfo = cssPropertyInfo(name); | |
| 220 if (!propInfo) | |
| 221 return; | |
| 222 | |
| 223 TOSTRING_VOID(V8StringResource<TreatNullAsNullString>, propertyValue, value)
; | |
| 224 ExceptionState exceptionState(ExceptionState::SetterContext, getPropertyName
(static_cast<CSSPropertyID>(propInfo->propID)), "CSSStyleDeclaration", info.Hold
er(), info.GetIsolate()); | |
| 225 impl->setPropertyInternal(static_cast<CSSPropertyID>(propInfo->propID), prop
ertyValue, exceptionState); | |
| 226 | |
| 227 if (exceptionState.throwIfNeeded()) | |
| 228 return; | |
| 229 | |
| 230 v8SetReturnValue(info, value); | |
| 231 } | |
| 232 | |
| 233 } // namespace blink | |
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Chromium Code Reviews
Issue 922053002:
Remove unused V8 integration code in Sky (Closed)
Base URL: git@github.com:domokit/mojo.git@master