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      1 /*
      2  * Copyright (C) 2005 Apple Computer, 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 #include "config.h"
     30 #include "JSObject.h"
     31 
     32 #include "UserObjectImp.h"
     33 
     34 JSUserObject::JSUserObject(JSObjectCallBacksPtr callBacks, JSObjectMarkProcPtr markProc, void *data, int dataType)
     35     : JSBase(kJSObjectTypeID), fCallBacks(*callBacks), fMarkProc(markProc), fData(data), fDataType(dataType)
     36 {
     37 }
     38 
     39 JSUserObject::~JSUserObject()
     40 {
     41     if (fCallBacks.dispose)
     42     {
     43         fCallBacks.dispose(fData);
     44     }
     45 }
     46 
     47 CFArrayRef JSUserObject::CopyPropertyNames(void)
     48 {
     49     CFArrayRef result = 0;
     50     if (fCallBacks.copyPropertyNames)
     51     {
     52         result = fCallBacks.copyPropertyNames(fData);
     53     }
     54     return result;
     55 }
     56 
     57 JSUserObject* JSUserObject::CopyProperty(CFStringRef propertyName)
     58 {
     59     JSUserObject* result = 0;
     60     if (fCallBacks.copyProperty)
     61     {
     62         result = (JSUserObject*)fCallBacks.copyProperty(fData, propertyName);
     63     }
     64     return result;
     65 }
     66 
     67 void JSUserObject::SetProperty(CFStringRef propertyName, JSUserObject* value)
     68 {
     69     if (fCallBacks.setProperty)
     70     {
     71         fCallBacks.setProperty(fData, propertyName, (JSObjectRef)value);
     72     }
     73 
     74 }
     75 
     76 static EncodedJSValue JSC_HOST_CALL nativeCallFunction(ExecState* exec);
     77 static EncodedJSValue nativeCallFunction(ExecState* exec)
     78 {
     79     return JSValue::encode(static_cast<UserObjectImp*>(exec->callee())->callAsFunction(exec));
     80 }
     81 
     82 CallType JSUserObject::getCallData(CallData& callData)
     83 {
     84     if (!fCallBacks.callFunction)
     85         return CallTypeNone;
     86 
     87     callData.native.function = nativeCallFunction;
     88     return CallTypeHost;
     89 }
     90 
     91 JSUserObject* JSUserObject::CallFunction(JSUserObject* thisObj, CFArrayRef args)
     92 {
     93     JSUserObject* result = 0;
     94     if (fCallBacks.callFunction)
     95     {
     96         result = (JSUserObject*)fCallBacks.callFunction(fData, (JSObjectRef)thisObj, args);
     97     }
     98     return result;
     99 
    100 }
    101 
    102 CFTypeRef JSUserObject::CopyCFValue() const
    103 {
    104     CFTypeRef result = 0;
    105     if (fCallBacks.copyCFValue)
    106     {
    107         result = (JSUserObject*)fCallBacks.copyCFValue(fData);
    108     }
    109     return result;
    110 }
    111 
    112 UInt8 JSUserObject::Equal(JSBase* other)
    113 {
    114     UInt8 result = false;
    115     JSUserObject* obj = (JSUserObject*)other;
    116     if (obj->GetTypeID() == kJSObjectTypeID)
    117     {
    118         if (fCallBacks.equal)
    119         {
    120             result = fCallBacks.equal(GetData(), obj->GetData());
    121         }
    122         else
    123         {
    124             CFTypeRef cf1 = CopyCFValue();
    125             CFTypeRef cf2 = obj->CopyCFValue();
    126             if (cf1 && cf2)
    127             {
    128                 result = CFEqual(cf1, cf2);
    129             }
    130             ReleaseCFType(cf2);
    131             ReleaseCFType(cf1);
    132         }
    133     }
    134     return result;
    135 }
    136 
    137 void JSUserObject::Mark()
    138 {
    139     if (fMarkProc)
    140     {
    141         fMarkProc(fData);
    142     }
    143 }
    144 
    145 void *JSUserObject::GetData()
    146 {
    147     return fData;
    148 }
    149 
    150 
    151