Merge changes Ide388898,Ic49f367c,I1158a808,Iacb6ca5d,I2100dd3a,I5c1abe54,Ib0ef9902,I31dbc523,I570314b3

* changes:
  Merge WebKit at r75315: Update WebKit version
  Merge WebKit at r75315: Add FrameLoaderClient PageCache stubs
  Merge WebKit at r75315: Stub out AXObjectCache::remove()
  Merge WebKit at r75315: Fix ImageBuffer
  Merge WebKit at r75315: Fix PluginData::initPlugins()
  Merge WebKit at r75315: Fix conflicts
  Merge WebKit at r75315: Fix Makefiles
  Merge WebKit at r75315: Move Android-specific WebCore files to Source
  Merge WebKit at r75315: Initial merge by git.

1 files changed, 90 insertions, 0 deletions

diff --git a/Source/WebCore/dom/CheckedRadioButtons.cpp b/Source/WebCore/dom/CheckedRadioButtons.cpp
new file mode 100644
index 0000000..3cf8848
--- /dev/null
+++ b/Source/WebCore/dom/CheckedRadioButtons.cpp
@@ -0,0 +1,90 @@
+/*
+ * Copyright (C) 2007, 2008, 2009 Apple Inc. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include "config.h"
+#include "CheckedRadioButtons.h"
+
+#include "HTMLInputElement.h"
+
+namespace WebCore {
+
+void CheckedRadioButtons::addButton(HTMLFormControlElement* element)
+{
+    // We only want to add radio buttons.
+    if (!element->isRadioButton())
+        return;
+
+    // Without a name, there is no group.
+    if (element->name().isEmpty())
+        return;
+
+    HTMLInputElement* inputElement = static_cast<HTMLInputElement*>(element);
+
+    // We only track checked buttons.
+    if (!inputElement->checked())
+        return;
+
+    if (!m_nameToCheckedRadioButtonMap)
+        m_nameToCheckedRadioButtonMap.set(new NameToInputMap);
+
+    pair<NameToInputMap::iterator, bool> result = m_nameToCheckedRadioButtonMap->add(element->name().impl(), inputElement);
+    if (result.second)
+        return;
+    
+    HTMLInputElement* oldCheckedButton = result.first->second;
+    if (oldCheckedButton == inputElement)
+        return;
+
+    result.first->second = inputElement;
+    oldCheckedButton->setChecked(false);
+}
+
+HTMLInputElement* CheckedRadioButtons::checkedButtonForGroup(const AtomicString& name) const
+{
+    if (!m_nameToCheckedRadioButtonMap)
+        return 0;
+
+    m_nameToCheckedRadioButtonMap->checkConsistency();
+    
+    return m_nameToCheckedRadioButtonMap->get(name.impl());
+}
+
+void CheckedRadioButtons::removeButton(HTMLFormControlElement* element)
+{
+    if (element->name().isEmpty() || !m_nameToCheckedRadioButtonMap)
+        return;
+    
+    m_nameToCheckedRadioButtonMap->checkConsistency();
+
+    NameToInputMap::iterator it = m_nameToCheckedRadioButtonMap->find(element->name().impl());
+    if (it == m_nameToCheckedRadioButtonMap->end() || it->second != element)
+        return;
+    
+    InputElement* inputElement = toInputElement(element);
+    ASSERT_UNUSED(inputElement, inputElement);
+    ASSERT(inputElement->isChecked());
+    ASSERT(element->isRadioButton());
+
+    m_nameToCheckedRadioButtonMap->remove(it);
+    if (m_nameToCheckedRadioButtonMap->isEmpty())
+        m_nameToCheckedRadioButtonMap.clear();
+}
+
+} // namespace