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      1 /*
      2  * Copyright (C) 2008, 2009 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  *
      8  * 1.  Redistributions of source code must retain the above copyright
      9  *     notice, this list of conditions and the following disclaimer.
     10  * 2.  Redistributions in binary form must reproduce the above copyright
     11  *     notice, this list of conditions and the following disclaimer in the
     12  *     documentation and/or other materials provided with the distribution.
     13  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
     14  *     its contributors may be used to endorse or promote products derived
     15  *     from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     20  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #import "config.h"
     30 #import "DOMInternal.h" // import first to make the private/public trick work
     31 #import "DOMAbstractViewInternal.h"
     32 
     33 #import "DOMDocumentInternal.h"
     34 #import "ExceptionHandlers.h"
     35 #import "Frame.h"
     36 #import "ThreadCheck.h"
     37 #import "WebScriptObjectPrivate.h"
     38 
     39 #define IMPL reinterpret_cast<WebCore::Frame*>(_internal)
     40 
     41 @implementation DOMAbstractView
     42 
     43 - (void)dealloc
     44 {
     45     { DOM_ASSERT_MAIN_THREAD(); WebCoreThreadViolationCheckRoundOne(); }
     46     [super dealloc];
     47 }
     48 
     49 - (DOMDocument *)document
     50 {
     51     if (!_internal)
     52         return nil;
     53     return kit(IMPL->domWindow()->document());
     54 }
     55 
     56 @end
     57 
     58 @implementation DOMAbstractView (Frame)
     59 
     60 - (void)_disconnectFrame
     61 {
     62     ASSERT(_internal);
     63     removeDOMWrapper(_internal);
     64     _internal = 0;
     65 }
     66 
     67 @end
     68 
     69 WebCore::DOMWindow* core(DOMAbstractView *wrapper)
     70 {
     71     if (!wrapper)
     72         return 0;
     73     if (!wrapper->_internal)
     74         return 0;
     75     return reinterpret_cast<WebCore::Frame*>(wrapper->_internal)->domWindow();
     76 }
     77 
     78 DOMAbstractView *kit(WebCore::DOMWindow* value)
     79 {
     80     { DOM_ASSERT_MAIN_THREAD(); WebCoreThreadViolationCheckRoundOne(); };
     81 
     82     if (!value)
     83         return nil;
     84     WebCore::Frame* frame = value->frame();
     85     if (!frame)
     86         return nil;
     87     if (DOMAbstractView *wrapper = getDOMWrapper(frame))
     88         return [[wrapper retain] autorelease];
     89     DOMAbstractView *wrapper = [[DOMAbstractView alloc] _init];
     90     wrapper->_internal = reinterpret_cast<DOMObjectInternal*>(frame);
     91     addDOMWrapper(wrapper, frame);
     92     return [wrapper autorelease];
     93 }
     94