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      1 /*
      2  * Copyright (C) 2010 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #ifndef WebDOMEventListenerPrivate_h
     32 #define WebDOMEventListenerPrivate_h
     33 
     34 #include "public/platform/WebString.h"
     35 #include "wtf/Vector.h"
     36 
     37 namespace WebCore {
     38 class EventTarget;
     39 }
     40 
     41 namespace WebKit {
     42 
     43 class EventListenerWrapper;
     44 class WebDOMEventListener;
     45 
     46 class WebDOMEventListenerPrivate {
     47 public:
     48     WebDOMEventListenerPrivate(WebDOMEventListener* webDOMEventListener);
     49     ~WebDOMEventListenerPrivate();
     50 
     51     EventListenerWrapper* createEventListenerWrapper(
     52         const WebString& eventType, bool useCapture, WebCore::EventTarget*);
     53 
     54     // Gets the ListenerEventWrapper for a specific node.
     55     // Used by WebNode::removeDOMEventListener().
     56     EventListenerWrapper* getEventListenerWrapper(
     57         const WebString& eventType, bool useCapture, WebCore::EventTarget*);
     58 
     59     // Called by the WebDOMEventListener when it is about to be deleted.
     60     void webDOMEventListenerDeleted();
     61 
     62     // Called by the EventListenerWrapper when it is about to be deleted.
     63     void eventListenerDeleted(EventListenerWrapper* eventListener);
     64 
     65     struct ListenerInfo {
     66         ListenerInfo(const WebString& eventType, bool useCapture,
     67                      EventListenerWrapper* eventListenerWrapper,
     68                      WebCore::EventTarget* target)
     69             : eventType(eventType)
     70             , useCapture(useCapture)
     71             , eventListenerWrapper(eventListenerWrapper)
     72             , target(target)
     73         {
     74         }
     75 
     76         WebString eventType;
     77         bool useCapture;
     78         EventListenerWrapper* eventListenerWrapper;
     79         WebCore::EventTarget* target;
     80     };
     81 
     82 private:
     83     WebDOMEventListener* m_webDOMEventListener;
     84 
     85     // We keep a list of the wrapper for the WebKit EventListener, it is needed
     86     // to implement WebNode::removeEventListener().
     87     Vector<ListenerInfo> m_listenerWrappers;
     88 };
     89 
     90 } // namespace WebKit
     91 
     92 #endif
     93