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      1 /*
      2  * Copyright (C) 2003, 2006, 2008 Apple Inc. All rights reserved.
      3  * Copyright 2010, The Android Open Source Project
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      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  *
     14  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
     15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     17  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     18  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     19  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     20  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     21  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     22  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     24  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     25  */
     26 
     27 #include "config.h"
     28 #include "BridgeJSC.h"
     29 
     30 #include "JSDOMWindowBase.h"
     31 #include "runtime_object.h"
     32 #include "runtime_root.h"
     33 #include "runtime/JSLock.h"
     34 #include "runtime/ObjectPrototype.h"
     35 
     36 
     37 #if PLATFORM(QT)
     38 #include "qt_instance.h"
     39 #endif
     40 
     41 namespace JSC {
     42 
     43 namespace Bindings {
     44 
     45 Array::Array(PassRefPtr<RootObject> rootObject)
     46     : m_rootObject(rootObject)
     47 {
     48     ASSERT(m_rootObject);
     49 }
     50 
     51 Array::~Array()
     52 {
     53 }
     54 
     55 Instance::Instance(PassRefPtr<RootObject> rootObject)
     56     : m_rootObject(rootObject)
     57     , m_runtimeObject(*WebCore::JSDOMWindowBase::commonJSGlobalData())
     58 {
     59     ASSERT(m_rootObject);
     60 }
     61 
     62 Instance::~Instance()
     63 {
     64     ASSERT(!m_runtimeObject);
     65 }
     66 
     67 static KJSDidExecuteFunctionPtr s_didExecuteFunction;
     68 
     69 void Instance::setDidExecuteFunction(KJSDidExecuteFunctionPtr func)
     70 {
     71     s_didExecuteFunction = func;
     72 }
     73 
     74 KJSDidExecuteFunctionPtr Instance::didExecuteFunction()
     75 {
     76     return s_didExecuteFunction;
     77 }
     78 
     79 void Instance::begin()
     80 {
     81     virtualBegin();
     82 }
     83 
     84 void Instance::end()
     85 {
     86     virtualEnd();
     87 }
     88 
     89 JSObject* Instance::createRuntimeObject(ExecState* exec)
     90 {
     91     ASSERT(m_rootObject);
     92     ASSERT(m_rootObject->isValid());
     93     if (RuntimeObject* existingObject = m_runtimeObject.get())
     94         return existingObject;
     95 
     96     JSLock lock(SilenceAssertionsOnly);
     97     RuntimeObject* newObject = newRuntimeObject(exec);
     98     m_runtimeObject.set(exec->globalData(), newObject, 0);
     99     m_rootObject->addRuntimeObject(exec->globalData(), newObject);
    100     return newObject;
    101 }
    102 
    103 RuntimeObject* Instance::newRuntimeObject(ExecState* exec)
    104 {
    105     JSLock lock(SilenceAssertionsOnly);
    106 
    107     // FIXME: deprecatedGetDOMStructure uses the prototype off of the wrong global object
    108     // We need to pass in the right global object for "i".
    109     return new (exec) RuntimeObject(exec, exec->lexicalGlobalObject(), WebCore::deprecatedGetDOMStructure<RuntimeObject>(exec), this);
    110 }
    111 
    112 void Instance::willInvalidateRuntimeObject()
    113 {
    114     m_runtimeObject.clear();
    115 }
    116 
    117 RootObject* Instance::rootObject() const
    118 {
    119     return m_rootObject && m_rootObject->isValid() ? m_rootObject.get() : 0;
    120 }
    121 
    122 } // namespace Bindings
    123 
    124 } // namespace JSC
    125