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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "core/css/cssom/CSSStyleValue.h"
#include "bindings/core/v8/ExceptionState.h"
#include "bindings/core/v8/ScriptValue.h"
#include "bindings/core/v8/ToV8.h"
#include "core/StylePropertyShorthand.h"
#include "core/css/cssom/StyleValueFactory.h"
#include "core/css/parser/CSSParser.h"
namespace blink {
ScriptValue CSSStyleValue::parse(ScriptState* scriptState,
const String& propertyName,
const String& value,
ExceptionState& exceptionState) {
if (propertyName.isEmpty()) {
exceptionState.throwTypeError("Property name cannot be empty");
return ScriptValue::createNull(scriptState);
}
CSSPropertyID propertyID = cssPropertyID(propertyName);
// TODO(timloh): Handle custom properties
if (propertyID == CSSPropertyInvalid || propertyID == CSSPropertyVariable) {
exceptionState.throwTypeError("Invalid property name");
return ScriptValue::createNull(scriptState);
}
if (isShorthandProperty(propertyID)) {
exceptionState.throwTypeError(
"Parsing shorthand properties is not supported");
return ScriptValue::createNull(scriptState);
}
const CSSValue* cssValue =
CSSParser::parseSingleValue(propertyID, value, strictCSSParserContext());
if (!cssValue)
return ScriptValue::createNull(scriptState);
CSSStyleValueVector styleValueVector =
StyleValueFactory::cssValueToStyleValueVector(propertyID, *cssValue);
if (styleValueVector.size() != 1) {
// TODO(meade): Support returning a CSSStyleValueOrCSSStyleValueSequence
// from this function.
return ScriptValue::createNull(scriptState);
}
v8::Local<v8::Value> wrappedValue =
ToV8(styleValueVector[0], scriptState->context()->Global(),
scriptState->isolate());
return ScriptValue(scriptState, wrappedValue);
}
} // namespace blink
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