1 /*

     2  * Copyright (C) 2010 Apple 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

     6  * are met:

     7  * 1. Redistributions of source code must retain the above copyright

     8  *    notice, this list of conditions and the following disclaimer.

     9  * 2. Redistributions in binary form must reproduce the above copyright

    10  *    notice, this list of conditions and the following disclaimer in the

    11  *    documentation and/or other materials provided with the distribution.

    12  *

    13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''

    14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

    15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

    16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS

    17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

    18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

    19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

    20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

    21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

    22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF

    23  * THE POSSIBILITY OF SUCH DAMAGE.

    24  */

    25 

    26 #ifndef NPJSObjectWrapperMap_h

    27 #define NPJSObjectWrapperMap_h

    28 

    29 #include <wtf/HashMap.h>

    30 

    31 struct NPObject;

    32 

    33 namespace JSC {

    34     class JSObject;

    35 }

    36 

    37 namespace WebKit {

    38 

    39 class NPJSObject;

    40 class PluginView;

    41 

    42 // A per plug-in map of NPObjects that wrap JavaScript objects.

    43 

    44 class NPJSObjectMap {

    45 public:

    46     explicit NPJSObjectMap(PluginView*);

    47 

    48     // Returns an NPObject that wraps the given JavaScript object. If there is already an NPObject that wraps this JSObject, it will

    49     // retain it and return it.

    50     NPObject* getOrCreateObject(JSC::JSObject*);

    51 

    52     void invalidate();

    53 

    54 private:

    55     friend class NPJSObject;

    56     PluginView* m_pluginView;

    57 

    58     HashMap<JSC::JSObject*, NPJSObject*> m_objects;

    59 };

    60 

    61 } // namespace WebKit

    62 

    63 #endif // NPJSObjectWrapperMap_h