Initial patch.

[vuplus_webkit] / Source / WebCore / dom / EventListenerMap.h

diff --git a/Source/WebCore/dom/EventListenerMap.h b/Source/WebCore/dom/EventListenerMap.h
new file mode 100644 (file)
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+++ b/Source/WebCore/dom/EventListenerMap.h
@@ -0,0 +1,99 @@
+/*
+ * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
+ *           (C) 1999 Antti Koivisto (koivisto@kde.org)
+ *           (C) 2001 Dirk Mueller (mueller@kde.org)
+ * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
+ * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
+ *           (C) 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
+ * Copyright (C) 2011 Andreas Kling (kling@webkit.org)
+ *
+ * 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 COMPUTER, 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 COMPUTER, 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.
+ *
+ */
+
+#ifndef EventListenerMap_h
+#define EventListenerMap_h
+
+#include "RegisteredEventListener.h"
+#include <wtf/Forward.h>
+#include <wtf/HashMap.h>
+#include <wtf/text/AtomicStringHash.h>
+
+namespace WebCore {
+
+class EventTarget;
+
+typedef Vector<RegisteredEventListener, 1> EventListenerVector;
+
+class EventListenerMap {
+public:
+    EventListenerMap();
+    ~EventListenerMap();
+
+    bool isEmpty() const;
+    bool contains(const AtomicString& eventType) const;
+
+    void clear();
+    bool add(const AtomicString& eventType, PassRefPtr<EventListener>, bool useCapture);
+    bool remove(const AtomicString& eventType, EventListener*, bool useCapture, size_t& indexOfRemovedListener);
+    EventListenerVector* find(const AtomicString& eventType);
+    Vector<AtomicString> eventTypes() const;
+
+#if ENABLE(SVG)
+    void removeFirstEventListenerCreatedFromMarkup(const AtomicString& eventType);
+    void copyEventListenersNotCreatedFromMarkupToTarget(EventTarget*);
+#endif
+
+private:
+    friend class EventListenerIterator;
+
+    struct EventListenerHashMapTraits : HashTraits<WTF::AtomicString> {
+        static const int minimumTableSize = 32;
+    };
+    typedef HashMap<AtomicString, EventListenerVector*, AtomicStringHash, EventListenerHashMapTraits> EventListenerHashMap;
+
+    OwnPtr<EventListenerHashMap> m_hashMap;
+
+    AtomicString m_singleEventListenerType;
+    OwnPtr<EventListenerVector> m_singleEventListenerVector;
+};
+
+class EventListenerIterator {
+    WTF_MAKE_NONCOPYABLE(EventListenerIterator);
+public:
+    EventListenerIterator();
+
+    // EventTarget must not be modified while an iterator is active.
+    EventListenerIterator(EventTarget*);
+
+    EventListener* nextListener();
+
+private:
+    EventListenerMap* m_map;
+    EventListenerMap::EventListenerHashMap::iterator m_mapIterator;
+    EventListenerMap::EventListenerHashMap::iterator m_mapEnd;
+    unsigned m_index;
+};
+
+} // namespace WebCore
+
+#endif // EventListenerMap_h