Merge from Chromium at DEPS revision r198571
This commit was generated by merge_to_master.py.
Change-Id: I3a7f89ea6b8c017335bd52739166aed708cad1e5
diff --git a/Source/core/css/DOMWindowCSS.cpp b/Source/core/css/DOMWindowCSS.cpp
new file mode 100644
index 0000000..406cde7
--- /dev/null
+++ b/Source/core/css/DOMWindowCSS.cpp
@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2012 Motorola Mobility Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Motorola Mobility Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from this
+ * software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "core/css/DOMWindowCSS.h"
+
+#include "core/css/CSSParser.h"
+#include "core/css/StylePropertySet.h"
+#include "core/page/RuntimeCSSEnabled.h"
+#include <wtf/text/WTFString.h>
+
+namespace WebCore {
+
+PassRefPtr<DOMWindowCSS> DOMWindowCSS::create()
+{
+ return adoptRef(new DOMWindowCSS());
+}
+
+static String valueWithoutImportant(const String& value)
+{
+ if (!value.endsWith("important", false))
+ return value;
+
+ String newValue = value;
+ int bangIndex = newValue.length() - 9 - 1;
+ if (newValue[bangIndex] == ' ')
+ bangIndex--;
+ newValue = newValue.left(bangIndex);
+
+ return newValue;
+}
+
+bool DOMWindowCSS::supports(const String& property, const String& value) const
+{
+ CSSPropertyID propertyID = cssPropertyID(property.stripWhiteSpace());
+ if (propertyID == CSSPropertyInvalid)
+ return false;
+
+ if (!RuntimeCSSEnabled::isCSSPropertyEnabled(propertyID))
+ return false;
+
+ // CSSParser::parseValue() won't work correctly if !important is present,
+ // so just get rid of it. It doesn't matter to supports() if it's actually
+ // there or not, provided how it's specified in the value is correct.
+ String normalizedValue = value.stripWhiteSpace().simplifyWhiteSpace();
+ normalizedValue = valueWithoutImportant(normalizedValue);
+
+ if (normalizedValue.isEmpty())
+ return false;
+
+ RefPtr<StylePropertySet> dummyStyle = StylePropertySet::create();
+ return CSSParser::parseValue(dummyStyle.get(), propertyID, normalizedValue, false, CSSStrictMode, 0);
+}
+
+bool DOMWindowCSS::supports(const String& conditionText) const
+{
+ CSSParserContext context(CSSStrictMode);
+ CSSParser parser(context);
+ return parser.parseSupportsCondition(conditionText);
+}
+
+}