webengine/osswebengine/JavaScriptGlue/UserObjectImp.cpp
changeset 0 dd21522fd290
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/JavaScriptGlue/UserObjectImp.cpp	Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,414 @@
+/*
+ * Copyright (C) 2005 Apple Computer, Inc.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer. 
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution. 
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "UserObjectImp.h"
+#include <JavaScriptCore/PropertyNameArray.h>
+
+const ClassInfo UserObjectImp::info = {"UserObject", 0, 0, 0};
+
+UserObjectImp::UserObjectImp(JSUserObject* userObject)
+    : fJSUserObject((JSUserObject*)userObject->Retain())
+{
+}
+
+UserObjectImp::~UserObjectImp()
+{
+    if (fJSUserObject)
+        fJSUserObject->Release();
+}
+
+const ClassInfo * UserObjectImp::classInfo() const
+{
+    return &info;
+}
+
+bool UserObjectImp::implementsCall() const
+{
+    return fJSUserObject ? fJSUserObject->ImplementsCall() : false;
+}
+
+JSValue *UserObjectImp::callAsFunction(ExecState *exec, JSObject *thisObj, const List &args)
+{
+    JSValue *result = jsUndefined();
+    JSUserObject* jsThisObj = KJSValueToJSObject(thisObj, exec);
+    if (jsThisObj) {
+        CFIndex argCount = args.size();
+        CFArrayCallBacks arrayCallBacks;
+        JSTypeGetCFArrayCallBacks(&arrayCallBacks);
+        CFMutableArrayRef jsArgs = CFArrayCreateMutable(0, 0, &arrayCallBacks);
+        if (jsArgs) {
+            for (CFIndex i = 0; i < argCount; i++) {
+                JSUserObject* jsArg = KJSValueToJSObject(args[i], exec);
+                CFArrayAppendValue(jsArgs, (void*)jsArg);
+                jsArg->Release();
+            }
+        }
+
+        JSUserObject* jsResult;
+        { // scope
+            JSLock::DropAllLocks dropLocks;
+
+            // implementsCall should have guarded against a NULL fJSUserObject.
+            assert(fJSUserObject);
+            jsResult = fJSUserObject->CallFunction(jsThisObj, jsArgs);
+        }
+
+        if (jsResult) {
+            result = JSObjectKJSValue(jsResult);
+            jsResult->Release();
+        }
+
+        ReleaseCFType(jsArgs);
+        jsThisObj->Release();
+    }
+    return result;
+}
+
+
+void UserObjectImp::getPropertyNames(ExecState *exec, PropertyNameArray& propertyNames)
+{
+    JSUserObject* ptr = GetJSUserObject();
+    if (ptr) {
+        CFArrayRef cfPropertyNames = ptr->CopyPropertyNames();
+        if (cfPropertyNames) {
+            CFIndex count = CFArrayGetCount(cfPropertyNames);
+            CFIndex i;
+            for (i = 0; i < count; i++) {
+                CFStringRef propertyName = (CFStringRef)CFArrayGetValueAtIndex(cfPropertyNames, i);
+                propertyNames.add(CFStringToIdentifier(propertyName));
+            }
+            CFRelease(cfPropertyNames);
+        }
+    }
+    JSObject::getPropertyNames(exec, propertyNames);
+}
+
+JSValue *UserObjectImp::userObjectGetter(ExecState *, JSObject *, const Identifier& propertyName, const PropertySlot& slot)
+{
+    UserObjectImp *thisObj = static_cast<UserObjectImp *>(slot.slotBase());
+    // getOwnPropertySlot should have guarded against a null fJSUserObject.
+    assert(thisObj->fJSUserObject);
+    
+    CFStringRef cfPropName = IdentifierToCFString(propertyName);
+    JSUserObject *jsResult = thisObj->fJSUserObject->CopyProperty(cfPropName);
+    ReleaseCFType(cfPropName);
+    JSValue *result = JSObjectKJSValue(jsResult);
+    jsResult->Release();
+
+    return result;
+}
+
+bool UserObjectImp::getOwnPropertySlot(ExecState *exec, const Identifier& propertyName, PropertySlot& slot)
+{
+    if (!fJSUserObject)
+        return false;
+
+    CFStringRef cfPropName = IdentifierToCFString(propertyName);
+    JSUserObject *jsResult = fJSUserObject->CopyProperty(cfPropName);
+    ReleaseCFType(cfPropName);
+    if (jsResult) {
+        slot.setCustom(this, userObjectGetter);
+        jsResult->Release();
+        return true;
+    } else {
+        JSValue *kjsValue = toPrimitive(exec);
+        if (kjsValue->type() != NullType && kjsValue->type() != UndefinedType) {
+            JSObject *kjsObject = kjsValue->toObject(exec);
+            if (kjsObject->getPropertySlot(exec, propertyName, slot))
+                return true;
+        }
+    }
+    return JSObject::getOwnPropertySlot(exec, propertyName, slot);
+}
+
+void UserObjectImp::put(ExecState *exec, const Identifier &propertyName, JSValue *value, int attr)
+{
+    if (!fJSUserObject)
+        return;
+    
+    CFStringRef cfPropName = IdentifierToCFString(propertyName);
+    JSUserObject *jsValueObj = KJSValueToJSObject(value, exec);
+
+    fJSUserObject->SetProperty(cfPropName, jsValueObj);
+
+    if (jsValueObj) jsValueObj->Release();
+    ReleaseCFType(cfPropName);
+}
+
+JSUserObject* UserObjectImp::GetJSUserObject() const
+{
+    return fJSUserObject;
+}
+
+JSValue *UserObjectImp::toPrimitive(ExecState *exec, JSType preferredType) const
+{
+    JSValue *result = jsUndefined();
+    JSUserObject* jsObjPtr = KJSValueToJSObject(toObject(exec), exec);
+    CFTypeRef cfValue = jsObjPtr ? jsObjPtr->CopyCFValue() : 0;
+    if (cfValue) {
+        CFTypeID cfType = CFGetTypeID(cfValue);  // toPrimitive
+        if (cfValue == GetCFNull()) {
+            result = jsNull();
+        }
+        else if (cfType == CFBooleanGetTypeID()) {
+            if (cfValue == kCFBooleanTrue) {
+                result = jsBoolean(true);
+            } else {
+                result = jsBoolean(false);
+            }
+        } else if (cfType == CFStringGetTypeID()) {
+            result = jsString(CFStringToUString((CFStringRef)cfValue));
+        } else if (cfType == CFNumberGetTypeID()) {
+            double d = 0.0;
+            CFNumberGetValue((CFNumberRef)cfValue, kCFNumberDoubleType, &d);
+            result = jsNumber(d);
+        } else if (cfType == CFURLGetTypeID()) {
+            CFURLRef absURL = CFURLCopyAbsoluteURL((CFURLRef)cfValue);
+            if (absURL) {
+                result = jsString(CFStringToUString(CFURLGetString(absURL)));
+                ReleaseCFType(absURL);
+            }
+        }
+        ReleaseCFType(cfValue);
+    }
+    if (jsObjPtr)
+        jsObjPtr->Release();
+    return result;
+}
+
+
+bool UserObjectImp::toBoolean(ExecState *exec) const
+{
+    bool result = false;
+    JSUserObject* jsObjPtr = KJSValueToJSObject(toObject(exec), exec);
+    CFTypeRef cfValue = jsObjPtr ? jsObjPtr->CopyCFValue() : 0;
+    if (cfValue)
+    {
+        CFTypeID cfType = CFGetTypeID(cfValue);  // toPrimitive
+        if (cfValue == GetCFNull())
+        {
+            //
+        }
+        else if (cfType == CFBooleanGetTypeID())
+        {
+            if (cfValue == kCFBooleanTrue)
+            {
+                result = true;
+            }
+        }
+        else if (cfType == CFStringGetTypeID())
+        {
+            if (CFStringGetLength((CFStringRef)cfValue))
+            {
+                result = true;
+            }
+        }
+        else if (cfType == CFNumberGetTypeID())
+        {
+            if (cfValue != kCFNumberNaN)
+            {
+                double d;
+                if (CFNumberGetValue((CFNumberRef)cfValue, kCFNumberDoubleType, &d))
+                {
+                    if (d != 0)
+                    {
+                        result = true;
+                    }
+                }
+            }
+        }
+        else if (cfType == CFArrayGetTypeID())
+        {
+            if (CFArrayGetCount((CFArrayRef)cfValue))
+            {
+                result = true;
+            }
+        }
+        else if (cfType == CFDictionaryGetTypeID())
+        {
+            if (CFDictionaryGetCount((CFDictionaryRef)cfValue))
+            {
+                result = true;
+            }
+        }
+        else if (cfType == CFSetGetTypeID())
+        {
+            if (CFSetGetCount((CFSetRef)cfValue))
+            {
+                result = true;
+            }
+        }
+        else if (cfType == CFURLGetTypeID())
+        {
+            CFURLRef absURL = CFURLCopyAbsoluteURL((CFURLRef)cfValue);
+            if (absURL)
+            {
+                CFStringRef cfStr = CFURLGetString(absURL);
+                if (cfStr && CFStringGetLength(cfStr))
+                {
+                    result = true;
+                }
+                ReleaseCFType(absURL);
+            }
+        }
+    }
+    if (jsObjPtr) jsObjPtr->Release();
+    ReleaseCFType(cfValue);
+    return result;
+}
+
+double UserObjectImp::toNumber(ExecState *exec) const
+{
+    double result = 0;
+    JSUserObject* jsObjPtr = KJSValueToJSObject(toObject(exec), exec);
+    CFTypeRef cfValue = jsObjPtr ? jsObjPtr->CopyCFValue() : 0;
+    if (cfValue)
+    {
+        CFTypeID cfType = CFGetTypeID(cfValue);
+
+        if (cfValue == GetCFNull())
+        {
+            //
+        }
+        else if (cfType == CFBooleanGetTypeID())
+        {
+            if (cfValue == kCFBooleanTrue)
+            {
+                result = 1;
+            }
+        }
+        else if (cfType == CFStringGetTypeID())
+        {
+            result = CFStringGetDoubleValue((CFStringRef)cfValue);
+        }
+        else if (cfType == CFNumberGetTypeID())
+        {
+            CFNumberGetValue((CFNumberRef)cfValue, kCFNumberDoubleType, &result);
+        }
+    }
+    ReleaseCFType(cfValue);
+    if (jsObjPtr) jsObjPtr->Release();
+    return result;
+}
+
+UString UserObjectImp::toString(ExecState *exec) const
+{
+    UString result;
+    JSUserObject* jsObjPtr = KJSValueToJSObject(toObject(exec), exec);
+    CFTypeRef cfValue = jsObjPtr ? jsObjPtr->CopyCFValue() : 0;
+    if (cfValue)
+    {
+        CFTypeID cfType = CFGetTypeID(cfValue);
+        if (cfValue == GetCFNull())
+        {
+            //
+        }
+        else if (cfType == CFBooleanGetTypeID())
+        {
+            if (cfValue == kCFBooleanTrue)
+            {
+                result = "true";
+            }
+            else
+            {
+                result = "false";
+            }
+        }
+        else if (cfType == CFStringGetTypeID())
+        {
+            result = CFStringToUString((CFStringRef)cfValue);
+        }
+        else if (cfType == CFNumberGetTypeID())
+        {
+            if (cfValue == kCFNumberNaN)
+            {
+                result = "Nan";
+            }
+            else if (CFNumberCompare(kCFNumberPositiveInfinity, (CFNumberRef)cfValue, 0) == 0)
+            {
+                result = "Infinity";
+            }
+            else if (CFNumberCompare(kCFNumberNegativeInfinity, (CFNumberRef)cfValue, 0) == 0)
+            {
+                result = "-Infinity";
+            }
+            else
+            {
+                CFStringRef cfNumStr;
+                double d = 0;
+                CFNumberGetValue((CFNumberRef)cfValue, kCFNumberDoubleType, &d);
+                if (CFNumberIsFloatType((CFNumberRef)cfValue))
+                {
+                    cfNumStr = CFStringCreateWithFormat(0, 0, CFSTR("%f"), d);
+                }
+                else
+                {
+                    cfNumStr = CFStringCreateWithFormat(0, 0, CFSTR("%.0f"), d);
+                }
+                result = CFStringToUString(cfNumStr);
+                ReleaseCFType(cfNumStr);
+            }
+        }
+        else if (cfType == CFArrayGetTypeID())
+        {
+            //
+        }
+        else if (cfType == CFDictionaryGetTypeID())
+        {
+            //
+        }
+        else if (cfType == CFSetGetTypeID())
+        {
+            //
+        }
+        else if (cfType == CFURLGetTypeID())
+        {
+            CFURLRef absURL = CFURLCopyAbsoluteURL((CFURLRef)cfValue);
+            if (absURL)
+            {
+                CFStringRef cfStr = CFURLGetString(absURL);
+                if (cfStr)
+                {
+                    result = CFStringToUString(cfStr);
+                }
+                ReleaseCFType(absURL);
+            }
+        }
+    }
+    ReleaseCFType(cfValue);
+    if (jsObjPtr) jsObjPtr->Release();
+    return result;
+}
+
+void UserObjectImp::mark()
+{
+    JSObject::mark();
+    if (fJSUserObject)
+        fJSUserObject->Mark();
+}