Imported WebKit commit 2ea9d364d0f6efa8fa64acf19f451504c59be0e4 (http://svn.webkit.org/repository/webkit/trunk@104285)

1 files changed, 205 insertions, 0 deletions

diff --git a/Source/WebCore/dom/DatasetDOMStringMap.cpp b/Source/WebCore/dom/DatasetDOMStringMap.cpp
new file mode 100644
index 000000000..e0d875dcb
--- /dev/null
+++ b/Source/WebCore/dom/DatasetDOMStringMap.cpp
@@ -0,0 +1,205 @@
+/*
+ * Copyright (C) 2010 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. AND ITS 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 APPLE INC. OR ITS 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 "DatasetDOMStringMap.h"
+
+#include "Attribute.h"
+#include "Element.h"
+#include "ExceptionCode.h"
+#include "NamedNodeMap.h"
+#include <wtf/ASCIICType.h>
+#include <wtf/text/StringBuilder.h>
+
+namespace WebCore {
+
+static bool isValidAttributeName(const String& name)
+{
+    if (!name.startsWith("data-"))
+        return false;
+
+    const UChar* characters = name.characters();
+    unsigned length = name.length();
+    for (unsigned i = 5; i < length; ++i) {
+        if (isASCIIUpper(characters[i]))
+            return false;
+    }
+
+    return true;
+}
+
+static String convertAttributeNameToPropertyName(const String& name)
+{
+    StringBuilder stringBuilder;
+
+    const UChar* characters = name.characters();
+    unsigned length = name.length();
+    for (unsigned i = 5; i < length; ++i) {
+        UChar character = characters[i];
+        if (character != '-')
+            stringBuilder.append(character);
+        else {
+            if ((i + 1 < length) && isASCIILower(characters[i + 1])) {
+                stringBuilder.append(toASCIIUpper(characters[i + 1]));
+                ++i;
+            } else
+                stringBuilder.append(character);
+        }
+    }
+
+    return stringBuilder.toString();
+}
+
+static bool propertyNameMatchesAttributeName(const String& propertyName, const String& attributeName)
+{
+    if (!attributeName.startsWith("data-"))
+        return false;
+
+    const UChar* property = propertyName.characters();
+    const UChar* attribute = attributeName.characters();
+    unsigned propertyLength = propertyName.length();
+    unsigned attributeLength = attributeName.length();
+   
+    unsigned a = 5;
+    unsigned p = 0;
+    bool wordBoundary = false;
+    while (a < attributeLength && p < propertyLength) {
+        if (attribute[a] == '-' && a + 1 < attributeLength && attribute[a + 1] != '-')
+            wordBoundary = true;
+        else {
+            if ((wordBoundary ? toASCIIUpper(attribute[a]) : attribute[a]) != property[p])
+                return false;
+            p++;
+            wordBoundary = false;
+        }
+        a++;
+    }
+
+    return (a == attributeLength && p == propertyLength);
+}
+
+static bool isValidPropertyName(const String& name)
+{
+    const UChar* characters = name.characters();
+    unsigned length = name.length();
+    for (unsigned i = 0; i < length; ++i) {
+        if (characters[i] == '-' && (i + 1 < length) && isASCIILower(characters[i + 1]))
+            return false;
+    }
+    return true;
+}
+
+static String convertPropertyNameToAttributeName(const String& name)
+{
+    StringBuilder builder;
+    builder.append("data-");
+
+    const UChar* characters = name.characters();
+    unsigned length = name.length();
+    for (unsigned i = 0; i < length; ++i) {
+        UChar character = characters[i];
+        if (isASCIIUpper(character)) {
+            builder.append('-');
+            builder.append(toASCIILower(character));
+        } else
+            builder.append(character);
+    }
+
+    return builder.toString();
+}
+
+void DatasetDOMStringMap::ref()
+{
+    m_element->ref();
+}
+
+void DatasetDOMStringMap::deref()
+{
+    m_element->deref();
+}
+
+void DatasetDOMStringMap::getNames(Vector<String>& names)
+{
+    NamedNodeMap* attributeMap = m_element->attributes(true);
+    if (attributeMap) {
+        unsigned length = attributeMap->length();
+        for (unsigned i = 0; i < length; i++) {
+            Attribute* attribute = attributeMap->attributeItem(i);
+            if (isValidAttributeName(attribute->localName()))
+                names.append(convertAttributeNameToPropertyName(attribute->localName()));
+        }
+    }
+}
+
+String DatasetDOMStringMap::item(const String& name)
+{
+    NamedNodeMap* attributeMap = m_element->attributes(true);
+    if (attributeMap) {
+        unsigned length = attributeMap->length();
+        for (unsigned i = 0; i < length; i++) {
+            Attribute* attribute = attributeMap->attributeItem(i);
+            if (propertyNameMatchesAttributeName(name, attribute->localName()))
+                return attribute->value();
+        }
+    }
+
+    return String();
+}
+
+bool DatasetDOMStringMap::contains(const String& name)
+{
+    NamedNodeMap* attributeMap = m_element->attributes(true);
+    if (attributeMap) {
+        unsigned length = attributeMap->length();
+        for (unsigned i = 0; i < length; i++) {
+            Attribute* attribute = attributeMap->attributeItem(i);
+            if (propertyNameMatchesAttributeName(name, attribute->localName()))
+                return true;
+        }
+    }
+    return false;
+}
+
+void DatasetDOMStringMap::setItem(const String& name, const String& value, ExceptionCode& ec)
+{
+    if (!isValidPropertyName(name)) {
+        ec = SYNTAX_ERR;
+        return;
+    }
+
+    m_element->setAttribute(convertPropertyNameToAttributeName(name), value, ec);
+}
+
+void DatasetDOMStringMap::deleteItem(const String& name, ExceptionCode& ec)
+{
+    if (!isValidPropertyName(name)) {
+        ec = SYNTAX_ERR;
+        return;
+    }
+
+    m_element->removeAttribute(convertPropertyNameToAttributeName(name));
+}
+
+} // namespace WebCore