Imported QtWebKit TP3 (git b57bc6801f1876c3220d5a4bfea33d620d477443)

Change-Id: I3b1d8a2808782c9f34d50240000e20cb38d3680f
Reviewed-by: Konstantin Tokarev <annulen@yandex.ru>

1 files changed, 90 insertions, 0 deletions

diff --git a/Source/WebCore/css/CSSVariableValue.cpp b/Source/WebCore/css/CSSVariableValue.cpp
new file mode 100644
index 000000000..9bcf50a14
--- /dev/null
+++ b/Source/WebCore/css/CSSVariableValue.cpp
@@ -0,0 +1,90 @@
+/*
+ * Copyright (C) 2015 Apple 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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 "CSSVariableValue.h"
+
+#include "CSSCustomPropertyValue.h"
+#include "CSSParserValues.h"
+#include "CSSValueList.h"
+#include "CSSVariableDependentValue.h"
+#include <wtf/text/StringBuilder.h>
+
+namespace WebCore {
+
+CSSVariableValue::CSSVariableValue(CSSParserVariable* variable)
+    : CSSValue(VariableClass)
+    , m_name(variable->name)
+{
+    if (variable->args)
+        m_fallbackArguments = CSSValueList::createFromParserValueList(*variable->args);
+}
+
+CSSVariableValue::CSSVariableValue(const String& name, PassRefPtr<CSSValueList> fallbackArgs)
+    : CSSValue(VariableClass)
+    , m_name(name)
+    , m_fallbackArguments(fallbackArgs)
+{
+}
+
+String CSSVariableValue::customCSSText() const
+{
+    StringBuilder result;
+    result.append("var(");
+    result.append(m_name);
+    if (m_fallbackArguments) {
+        result.append(", ");
+        result.append(m_fallbackArguments->cssText());
+    }
+    result.append(")");
+    return result.toString();
+}
+
+bool CSSVariableValue::equals(const CSSVariableValue& other) const
+{
+    return m_name == other.m_name && compareCSSValuePtr(m_fallbackArguments, other.m_fallbackArguments);
+}
+
+bool CSSVariableValue::buildParserValueListSubstitutingVariables(CSSParserValueList* resultList, const CustomPropertyValueMap& customProperties) const
+{
+    RefPtr<CSSValue> value = customProperties.get(m_name);
+    if (value && value->isValueList()) {
+        auto& variableList = downcast<CSSValueList>(*value);
+        return variableList.buildParserValueListSubstitutingVariables(resultList, customProperties);
+    }
+    
+    if (value && value->isVariableDependentValue()) {
+        auto* variableList = downcast<CSSVariableDependentValue>(*value).valueList();
+        if (variableList)
+            return variableList->buildParserValueListSubstitutingVariables(resultList, customProperties);
+    }
+
+    // We failed to substitute the variable. If it has fallback arguments, use those instead.
+    if (!fallbackArguments() || !fallbackArguments()->length())
+        return false;
+    return fallbackArguments()->buildParserValueListSubstitutingVariables(resultList, customProperties);
+}
+
+}