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C++ JSValueMakeUndefined函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C++中JSValueMakeUndefined函数的典型用法代码示例。如果您正苦于以下问题：C++ JSValueMakeUndefined函数的具体用法？C++ JSValueMakeUndefined怎么用？C++ JSValueMakeUndefined使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了JSValueMakeUndefined函数的17个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: keyDownCallback

static JSValueRef keyDownCallback(JSContextRef context, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
{
    if (argumentCount < 1)
        return JSValueMakeUndefined(context);

    static const JSStringRef lengthProperty = JSStringCreateWithUTF8CString("length");

    webkit_web_frame_layout(mainFrame);

    // handle modifier keys.
    int state = 0;
    if (argumentCount > 1) {
        JSObjectRef modifiersArray = JSValueToObject(context, arguments[1], exception);
        if (modifiersArray) {
            for (int i = 0; i < JSValueToNumber(context, JSObjectGetProperty(context, modifiersArray, lengthProperty, 0), 0); ++i) {
                JSValueRef value = JSObjectGetPropertyAtIndex(context, modifiersArray, i, 0);
                JSStringRef string = JSValueToStringCopy(context, value, 0);
                if (JSStringIsEqualToUTF8CString(string, "ctrlKey"))
                    state |= GDK_CONTROL_MASK;
                else if (JSStringIsEqualToUTF8CString(string, "shiftKey"))
                    state |= GDK_SHIFT_MASK;
                else if (JSStringIsEqualToUTF8CString(string, "altKey"))
                    state |= GDK_MOD1_MASK;

                JSStringRelease(string);
            }
        }
    }

    // handle location argument.
    int location = DOM_KEY_LOCATION_STANDARD;
    if (argumentCount > 2)
        location = (int)JSValueToNumber(context, arguments[2], exception);

    JSStringRef character = JSValueToStringCopy(context, arguments[0], exception);
    g_return_val_if_fail((!exception || !*exception), JSValueMakeUndefined(context));
    int gdkKeySym = GDK_VoidSymbol;
    if (location == DOM_KEY_LOCATION_NUMPAD) {
        if (JSStringIsEqualToUTF8CString(character, "leftArrow"))
            gdkKeySym = GDK_KP_Left;
        else if (JSStringIsEqualToUTF8CString(character, "rightArrow"))
            gdkKeySym = GDK_KP_Right;
        else if (JSStringIsEqualToUTF8CString(character, "upArrow"))
            gdkKeySym = GDK_KP_Up;
        else if (JSStringIsEqualToUTF8CString(character, "downArrow"))
            gdkKeySym = GDK_KP_Down;
        else if (JSStringIsEqualToUTF8CString(character, "pageUp"))
            gdkKeySym = GDK_KP_Page_Up;
        else if (JSStringIsEqualToUTF8CString(character, "pageDown"))
            gdkKeySym = GDK_KP_Page_Down;
        else if (JSStringIsEqualToUTF8CString(character, "home"))
            gdkKeySym = GDK_KP_Home;
        else if (JSStringIsEqualToUTF8CString(character, "end"))
            gdkKeySym = GDK_KP_End;
        else
            // Assume we only get arrow/pgUp/pgDn/home/end keys with
            // location=NUMPAD for now.
            g_assert_not_reached();
    } else {
        if (JSStringIsEqualToUTF8CString(character, "leftArrow"))
            gdkKeySym = GDK_Left;
        else if (JSStringIsEqualToUTF8CString(character, "rightArrow"))
            gdkKeySym = GDK_Right;
        else if (JSStringIsEqualToUTF8CString(character, "upArrow"))
            gdkKeySym = GDK_Up;
        else if (JSStringIsEqualToUTF8CString(character, "downArrow"))
            gdkKeySym = GDK_Down;
        else if (JSStringIsEqualToUTF8CString(character, "pageUp"))
            gdkKeySym = GDK_Page_Up;
        else if (JSStringIsEqualToUTF8CString(character, "pageDown"))
            gdkKeySym = GDK_Page_Down;
        else if (JSStringIsEqualToUTF8CString(character, "home"))
            gdkKeySym = GDK_Home;
        else if (JSStringIsEqualToUTF8CString(character, "end"))
            gdkKeySym = GDK_End;
        else if (JSStringIsEqualToUTF8CString(character, "delete"))
            gdkKeySym = GDK_BackSpace;
        else if (JSStringIsEqualToUTF8CString(character, "F1"))
            gdkKeySym = GDK_F1;
        else if (JSStringIsEqualToUTF8CString(character, "F2"))
            gdkKeySym = GDK_F2;
        else if (JSStringIsEqualToUTF8CString(character, "F3"))
            gdkKeySym = GDK_F3;
        else if (JSStringIsEqualToUTF8CString(character, "F4"))
            gdkKeySym = GDK_F4;
        else if (JSStringIsEqualToUTF8CString(character, "F5"))
            gdkKeySym = GDK_F5;
        else if (JSStringIsEqualToUTF8CString(character, "F6"))
            gdkKeySym = GDK_F6;
        else if (JSStringIsEqualToUTF8CString(character, "F7"))
            gdkKeySym = GDK_F7;
        else if (JSStringIsEqualToUTF8CString(character, "F8"))
            gdkKeySym = GDK_F8;
        else if (JSStringIsEqualToUTF8CString(character, "F9"))
            gdkKeySym = GDK_F9;
        else if (JSStringIsEqualToUTF8CString(character, "F10"))
            gdkKeySym = GDK_F10;
        else if (JSStringIsEqualToUTF8CString(character, "F11"))
            gdkKeySym = GDK_F11;
        else if (JSStringIsEqualToUTF8CString(character, "F12"))
//.........这里部分代码省略.........
开发者ID:flwh，项目名称:Alcatel_OT_985_kernel，代码行数:101，代码来源:EventSender.cpp


示例2: JSValueMakeUndefined

JSValueRef LayoutTestController::originsWithApplicationCache(JSContextRef context)
{
    // FIXME: Implement to get origins that contain application caches.
    return JSValueMakeUndefined(context);
}
开发者ID:sohocoke，项目名称:webkit，代码行数:5，代码来源:LayoutTestControllerGtk.cpp


示例3: keyDownCallback

static JSValueRef keyDownCallback(JSContextRef context, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
{
    if (argumentCount < 1)
        return JSValueMakeUndefined(context);

    static const JSStringRef lengthProperty = JSStringCreateWithUTF8CString("length");

    COMPtr<IWebFramePrivate> framePrivate;
    if (SUCCEEDED(frame->QueryInterface(&framePrivate)))
        framePrivate->layout();
    
    JSStringRef character = JSValueToStringCopy(context, arguments[0], exception);
    ASSERT(!*exception);
    int virtualKeyCode;
    int charCode = 0;
    int keyData = 1;
    bool needsShiftKeyModifier = false;
    if (JSStringIsEqualToUTF8CString(character, "leftArrow")) {
        virtualKeyCode = VK_LEFT;
        keyData += KF_EXTENDED << 16; // In this case, extended means "not keypad".
    } else if (JSStringIsEqualToUTF8CString(character, "rightArrow")) {
        virtualKeyCode = VK_RIGHT;
        keyData += KF_EXTENDED << 16;
    } else if (JSStringIsEqualToUTF8CString(character, "upArrow")) {
        virtualKeyCode = VK_UP;
        keyData += KF_EXTENDED << 16;
    } else if (JSStringIsEqualToUTF8CString(character, "downArrow")) {
        virtualKeyCode = VK_DOWN;
        keyData += KF_EXTENDED << 16;
    } else if (JSStringIsEqualToUTF8CString(character, "pageUp"))
        virtualKeyCode = VK_PRIOR;
    else if (JSStringIsEqualToUTF8CString(character, "pageDown"))
        virtualKeyCode = VK_NEXT;
    else if (JSStringIsEqualToUTF8CString(character, "home"))
        virtualKeyCode = VK_HOME;
    else if (JSStringIsEqualToUTF8CString(character, "end"))
        virtualKeyCode = VK_END;
    else if (JSStringIsEqualToUTF8CString(character, "insert"))
        virtualKeyCode = VK_INSERT;
    else if (JSStringIsEqualToUTF8CString(character, "delete"))
        virtualKeyCode = VK_DELETE;
    else if (JSStringIsEqualToUTF8CString(character, "printScreen"))
        virtualKeyCode = VK_SNAPSHOT;
    else if (JSStringIsEqualToUTF8CString(character, "menu"))
        virtualKeyCode = VK_APPS;
    else if (JSStringIsEqualToUTF8CString(character, "leftControl"))
        virtualKeyCode = VK_LCONTROL;
    else if (JSStringIsEqualToUTF8CString(character, "leftShift"))
        virtualKeyCode = VK_LSHIFT;
    else if (JSStringIsEqualToUTF8CString(character, "leftAlt"))
        virtualKeyCode = VK_LMENU;
    else if (JSStringIsEqualToUTF8CString(character, "rightControl"))
        virtualKeyCode = VK_RCONTROL;
    else if (JSStringIsEqualToUTF8CString(character, "rightShift"))
        virtualKeyCode = VK_RSHIFT;
    else if (JSStringIsEqualToUTF8CString(character, "rightAlt"))
        virtualKeyCode = VK_RMENU;
    else {
        charCode = JSStringGetCharactersPtr(character)[0];
        virtualKeyCode = LOBYTE(VkKeyScan(charCode));
        if (WTF::isASCIIUpper(charCode))
            needsShiftKeyModifier = true;
    }
    JSStringRelease(character);

    BYTE keyState[256];
    if (argumentCount > 1 || needsShiftKeyModifier) {
        ::GetKeyboardState(keyState);

        BYTE newKeyState[256];
        memcpy(newKeyState, keyState, sizeof(keyState));

        if (needsShiftKeyModifier)
            newKeyState[VK_SHIFT] = 0x80;

        if (argumentCount > 1) {
            JSObjectRef modifiersArray = JSValueToObject(context, arguments[1], 0);
            if (modifiersArray) {
                int modifiersCount = JSValueToNumber(context, JSObjectGetProperty(context, modifiersArray, lengthProperty, 0), 0);
                for (int i = 0; i < modifiersCount; ++i) {
                    JSValueRef value = JSObjectGetPropertyAtIndex(context, modifiersArray, i, 0);
                    JSStringRef string = JSValueToStringCopy(context, value, 0);
                    if (JSStringIsEqualToUTF8CString(string, "ctrlKey") || JSStringIsEqualToUTF8CString(string, "addSelectionKey"))
                        newKeyState[VK_CONTROL] = 0x80;
                    else if (JSStringIsEqualToUTF8CString(string, "shiftKey") || JSStringIsEqualToUTF8CString(string, "rangeSelectionKey"))
                        newKeyState[VK_SHIFT] = 0x80;
                    else if (JSStringIsEqualToUTF8CString(string, "altKey"))
                        newKeyState[VK_MENU] = 0x80;

                    JSStringRelease(string);
                }
            }
        }

        ::SetKeyboardState(newKeyState);
    }

    MSG msg = makeMsg(webViewWindow, (::GetKeyState(VK_MENU) & 0x8000) ? WM_SYSKEYDOWN : WM_KEYDOWN, virtualKeyCode, keyData);
    if (virtualKeyCode != 255)
        dispatchMessage(&msg);
//.........这里部分代码省略.........
开发者ID:dzhshf，项目名称:WebKit，代码行数:101，代码来源:EventSender.cpp


示例4: main

int main(int argc, char* argv[])
{
    const char *scriptPath = "testapi.js";
    if (argc > 1) {
        scriptPath = argv[1];
    }
    
    // Test garbage collection with a fresh context
    context = JSGlobalContextCreateInGroup(NULL, NULL);
    TestInitializeFinalize = true;
    testInitializeFinalize();
    JSGlobalContextRelease(context);
    TestInitializeFinalize = false;

    ASSERT(Base_didFinalize);

    JSClassDefinition globalObjectClassDefinition = kJSClassDefinitionEmpty;
    globalObjectClassDefinition.initialize = globalObject_initialize;
    globalObjectClassDefinition.staticValues = globalObject_staticValues;
    globalObjectClassDefinition.staticFunctions = globalObject_staticFunctions;
    globalObjectClassDefinition.attributes = kJSClassAttributeNoAutomaticPrototype;
    JSClassRef globalObjectClass = JSClassCreate(&globalObjectClassDefinition);
    context = JSGlobalContextCreateInGroup(NULL, globalObjectClass);

    JSGlobalContextRetain(context);
    JSGlobalContextRelease(context);

    JSObjectRef globalObject = JSContextGetGlobalObject(context);
    ASSERT(JSValueIsObject(context, globalObject));
    
    JSValueRef jsUndefined = JSValueMakeUndefined(context);
    JSValueRef jsNull = JSValueMakeNull(context);
    JSValueRef jsTrue = JSValueMakeBoolean(context, true);
    JSValueRef jsFalse = JSValueMakeBoolean(context, false);
    JSValueRef jsZero = JSValueMakeNumber(context, 0);
    JSValueRef jsOne = JSValueMakeNumber(context, 1);
    JSValueRef jsOneThird = JSValueMakeNumber(context, 1.0 / 3.0);
    JSObjectRef jsObjectNoProto = JSObjectMake(context, NULL, NULL);
    JSObjectSetPrototype(context, jsObjectNoProto, JSValueMakeNull(context));

    // FIXME: test funny utf8 characters
    JSStringRef jsEmptyIString = JSStringCreateWithUTF8CString("");
    JSValueRef jsEmptyString = JSValueMakeString(context, jsEmptyIString);
    
    JSStringRef jsOneIString = JSStringCreateWithUTF8CString("1");
    JSValueRef jsOneString = JSValueMakeString(context, jsOneIString);

    UniChar singleUniChar = 65; // Capital A
    CFMutableStringRef cfString = 
        CFStringCreateMutableWithExternalCharactersNoCopy(kCFAllocatorDefault,
                                                          &singleUniChar,
                                                          1,
                                                          1,
                                                          kCFAllocatorNull);

    JSStringRef jsCFIString = JSStringCreateWithCFString(cfString);
    JSValueRef jsCFString = JSValueMakeString(context, jsCFIString);
    
    CFStringRef cfEmptyString = CFStringCreateWithCString(kCFAllocatorDefault, "", kCFStringEncodingUTF8);
    
    JSStringRef jsCFEmptyIString = JSStringCreateWithCFString(cfEmptyString);
    JSValueRef jsCFEmptyString = JSValueMakeString(context, jsCFEmptyIString);

    CFIndex cfStringLength = CFStringGetLength(cfString);
    UniChar* buffer = (UniChar*)malloc(cfStringLength * sizeof(UniChar));
    CFStringGetCharacters(cfString, 
                          CFRangeMake(0, cfStringLength), 
                          buffer);
    JSStringRef jsCFIStringWithCharacters = JSStringCreateWithCharacters((JSChar*)buffer, cfStringLength);
    JSValueRef jsCFStringWithCharacters = JSValueMakeString(context, jsCFIStringWithCharacters);
    
    JSStringRef jsCFEmptyIStringWithCharacters = JSStringCreateWithCharacters((JSChar*)buffer, CFStringGetLength(cfEmptyString));
    free(buffer);
    JSValueRef jsCFEmptyStringWithCharacters = JSValueMakeString(context, jsCFEmptyIStringWithCharacters);

    ASSERT(JSValueGetType(context, jsUndefined) == kJSTypeUndefined);
    ASSERT(JSValueGetType(context, jsNull) == kJSTypeNull);
    ASSERT(JSValueGetType(context, jsTrue) == kJSTypeBoolean);
    ASSERT(JSValueGetType(context, jsFalse) == kJSTypeBoolean);
    ASSERT(JSValueGetType(context, jsZero) == kJSTypeNumber);
    ASSERT(JSValueGetType(context, jsOne) == kJSTypeNumber);
    ASSERT(JSValueGetType(context, jsOneThird) == kJSTypeNumber);
    ASSERT(JSValueGetType(context, jsEmptyString) == kJSTypeString);
    ASSERT(JSValueGetType(context, jsOneString) == kJSTypeString);
    ASSERT(JSValueGetType(context, jsCFString) == kJSTypeString);
    ASSERT(JSValueGetType(context, jsCFStringWithCharacters) == kJSTypeString);
    ASSERT(JSValueGetType(context, jsCFEmptyString) == kJSTypeString);
    ASSERT(JSValueGetType(context, jsCFEmptyStringWithCharacters) == kJSTypeString);

    JSObjectRef myObject = JSObjectMake(context, MyObject_class(context), NULL);
    JSStringRef myObjectIString = JSStringCreateWithUTF8CString("MyObject");
    JSObjectSetProperty(context, globalObject, myObjectIString, myObject, kJSPropertyAttributeNone, NULL);
    JSStringRelease(myObjectIString);
    
    JSValueRef exception;

    // Conversions that throw exceptions
    exception = NULL;
    ASSERT(NULL == JSValueToObject(context, jsNull, &exception));
    ASSERT(exception);
//.........这里部分代码省略.........
开发者ID:acss，项目名称:owb-mirror，代码行数:101，代码来源:testapi.c


示例5: if

JSValueRef JSCInt16Array::setCallback(JSContextRef ctx, JSObjectRef function, JSObjectRef thisObj, size_t argumentCount, const JSValueRef* arguments, JSValueRef* exception) {

	struct JSCInt16ArrayPrivate* privData = (struct JSCInt16ArrayPrivate*)JSObjectGetPrivate(thisObj);

	if (false) {
	} else if (argumentCount == 2 &&
	           JSValueIsObject(ctx, arguments[0]) && JSValueIsObjectOfClass(ctx, arguments[0], JSCInt16Array::getTmpl()) &&
	           JSValueIsNumber(ctx, arguments[1])) {
		uscxml::Int16Array* localArray = ((struct JSCInt16Array::JSCInt16ArrayPrivate*)JSObjectGetPrivate(JSValueToObject(ctx, arguments[0], exception)))->nativeObj;
		unsigned long localOffset = (unsigned long)JSValueToNumber(ctx, arguments[1], exception);

		privData->nativeObj->set(localArray, localOffset);

		JSValueRef jscRetVal = JSValueMakeUndefined(ctx);
		return jscRetVal;
	} else if (argumentCount == 2 &&
	           JSValueIsNumber(ctx, arguments[0]) &&
	           JSValueIsNumber(ctx, arguments[1])) {
		unsigned long localIndex = (unsigned long)JSValueToNumber(ctx, arguments[0], exception);
		short localValue = (short)JSValueToNumber(ctx, arguments[1], exception);

		privData->nativeObj->set(localIndex, localValue);

		JSValueRef jscRetVal = JSValueMakeUndefined(ctx);
		return jscRetVal;
	} else if (argumentCount == 2 &&
	           JSValueIsObject(ctx, arguments[0]) &&
	           JSValueIsNumber(ctx, arguments[1])) {

		std::vector<short> localArray;

		JSValueRef localArrayItem;
		unsigned int localArrayIndex = 0;
		while((localArrayItem = JSObjectGetPropertyAtIndex(ctx, JSValueToObject(ctx, arguments[0], exception), localArrayIndex, exception))) {
			if (JSValueIsUndefined(ctx, localArrayItem))
				break;
			if (JSValueIsNumber(ctx,localArrayItem))
				localArray.push_back(JSValueToNumber(ctx, localArrayItem, exception));
			localArrayIndex++;
		}
		unsigned long localOffset = (unsigned long)JSValueToNumber(ctx, arguments[1], exception);

		privData->nativeObj->set(localArray, localOffset);

		JSValueRef jscRetVal = JSValueMakeUndefined(ctx);
		return jscRetVal;
	} else if (argumentCount == 1 &&
	           JSValueIsObject(ctx, arguments[0]) && JSValueIsObjectOfClass(ctx, arguments[0], JSCInt16Array::getTmpl())) {
		uscxml::Int16Array* localArray = ((struct JSCInt16Array::JSCInt16ArrayPrivate*)JSObjectGetPrivate(JSValueToObject(ctx, arguments[0], exception)))->nativeObj;

		privData->nativeObj->set(localArray);

		JSValueRef jscRetVal = JSValueMakeUndefined(ctx);
		return jscRetVal;
	} else if (argumentCount == 1 &&
	           JSValueIsObject(ctx, arguments[0])) {

		std::vector<short> localArray;

		JSValueRef localArrayItem;
		unsigned int localArrayIndex = 0;
		while((localArrayItem = JSObjectGetPropertyAtIndex(ctx, JSValueToObject(ctx, arguments[0], exception), localArrayIndex, exception))) {
			if (JSValueIsUndefined(ctx, localArrayItem))
				break;
			if (JSValueIsNumber(ctx,localArrayItem))
				localArray.push_back(JSValueToNumber(ctx, localArrayItem, exception));
			localArrayIndex++;
		}

		privData->nativeObj->set(localArray);

		JSValueRef jscRetVal = JSValueMakeUndefined(ctx);
		return jscRetVal;
	}

	JSStringRef exceptionString = JSStringCreateWithUTF8CString("Parameter mismatch while calling set");
	*exception = JSValueMakeString(ctx, exceptionString);
	JSStringRelease(exceptionString);
	return JSValueMakeUndefined(ctx);
}
开发者ID:bjqiwei，项目名称:uscxml，代码行数:80，代码来源:JSCInt16Array.cpp


示例6: collectCallback

static JSValueRef collectCallback(JSContextRef context, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
{
    GCController* controller = static_cast<GCController*>(JSObjectGetPrivate(thisObject));
    controller->collect();
    return JSValueMakeUndefined(context);
}
开发者ID:jackiekaon，项目名称:owb-mirror，代码行数:6，代码来源:GCController.cpp


示例7: logAccessibilityEventsCallback

static JSValueRef logAccessibilityEventsCallback(JSContextRef ctx, JSObjectRef, JSObjectRef thisObject, size_t, const JSValueRef[], JSValueRef*)
{
    AccessibilityController* controller = static_cast<AccessibilityController*>(JSObjectGetPrivate(thisObject));
    controller->setLogAccessibilityEvents(true);
    return JSValueMakeUndefined(ctx);
}
开发者ID:Wrichik1999，项目名称:webkit，代码行数:6，代码来源:AccessibilityController.cpp


示例8: keyDownCallback

static JSValueRef keyDownCallback(JSContextRef context, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
{
    if (argumentCount < 1)
        return JSValueMakeUndefined(context);

    static JSStringRef ctrlKey = JSStringCreateWithUTF8CString("ctrlKey");
    static JSStringRef shiftKey = JSStringCreateWithUTF8CString("shiftKey");
    static JSStringRef altKey = JSStringCreateWithUTF8CString("altKey");
    static JSStringRef metaKey = JSStringCreateWithUTF8CString("metaKey");
    static JSStringRef lengthProperty = JSStringCreateWithUTF8CString("length");

    COMPtr<IWebFramePrivate> framePrivate;
    if (SUCCEEDED(frame->QueryInterface(&framePrivate)))
        framePrivate->layout();
    
    JSStringRef character = JSValueToStringCopy(context, arguments[0], exception);
    ASSERT(!exception || !*exception);
    int charCode = JSStringGetCharactersPtr(character)[0];
    int virtualKeyCode = toupper(LOBYTE(VkKeyScan(charCode)));
    JSStringRelease(character);

    // Hack to map option-delete to ctrl-delete
    // Remove this when we fix <rdar://problem/5102974> layout tests need a way to decide how to choose the appropriate modifier keys
    bool convertOptionToCtrl = false;
    if (virtualKeyCode == VK_DELETE || virtualKeyCode == VK_BACK)
        convertOptionToCtrl = true;
    
    BYTE keyState[256];
    if (argumentCount > 1) {
        ::GetKeyboardState(keyState);

        BYTE newKeyState[256];
        memcpy(newKeyState, keyState, sizeof(keyState));

        JSObjectRef modifiersArray = JSValueToObject(context, arguments[1], exception);
        if (modifiersArray) {
            int modifiersCount = JSValueToNumber(context, JSObjectGetProperty(context, modifiersArray, lengthProperty, 0), 0);
            for (int i = 0; i < modifiersCount; ++i) {
                JSValueRef value = JSObjectGetPropertyAtIndex(context, modifiersArray, i, 0);
                JSStringRef string = JSValueToStringCopy(context, value, 0);
                if (JSStringIsEqual(string, ctrlKey))
                    newKeyState[VK_CONTROL] = 0x80;
                else if (JSStringIsEqual(string, shiftKey))
                    newKeyState[VK_SHIFT] = 0x80;
                else if (JSStringIsEqual(string, altKey)) {
                    if (convertOptionToCtrl)
                        newKeyState[VK_CONTROL] = 0x80;
                    else
                        newKeyState[VK_MENU] = 0x80;
                } else if (JSStringIsEqual(string, metaKey))
                    newKeyState[VK_MENU] = 0x80;

                JSStringRelease(string);
            }
        }

        ::SetKeyboardState(newKeyState);
    }

    MSG msg = makeMsg(webViewWindow, WM_KEYDOWN, virtualKeyCode, 0);
    dispatchMessage(&msg);
    
    if (argumentCount > 1)
        ::SetKeyboardState(keyState);

    return JSValueMakeUndefined(context);
}
开发者ID:gvsurenderreddy，项目名称:symbiandump-mw4，代码行数:67，代码来源:EventSender.cpp


示例9: removeNotificationListenerCallback

static JSValueRef removeNotificationListenerCallback(JSContextRef context, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
{
    AccessibilityController* controller = static_cast<AccessibilityController*>(JSObjectGetPrivate(thisObject));
    controller->removeNotificationListener();
    return JSValueMakeUndefined(context);
}
开发者ID:Wrichik1999，项目名称:webkit，代码行数:6，代码来源:AccessibilityController.cpp


示例10: removeSelectionCallback

static JSValueRef removeSelectionCallback(JSContextRef context, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
{
    toAXElement(thisObject)->removeSelection();
    return JSValueMakeUndefined(context);
}
开发者ID:mikezit，项目名称:Webkit_Code，代码行数:5，代码来源:AccessibilityUIElement.cpp


示例11: context

jsc::Value::Value(Context &context) : context(context) {
    value = JSValueMakeUndefined(context);
    JSValueProtect(context, value);
}
开发者ID:sbennett912，项目名称:jsc，代码行数:4，代码来源:Value.cpp


示例12: leapForwardCallback

static JSValueRef leapForwardCallback(JSContextRef context, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
{
    // FIXME: Add proper support for forward leaps
    return JSValueMakeUndefined(context);
}
开发者ID:flwh，项目名称:Alcatel_OT_985_kernel，代码行数:5，代码来源:EventSender.cpp


示例13: releaseForJSBuffer

/**
 * release
 */
JSValueRef releaseForJSBuffer (JSContextRef ctx, JSObjectRef function, JSObjectRef object, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
{
    ReleaseBuffer(object);
    return JSValueMakeUndefined(ctx);
}
开发者ID:pec1985，项目名称:hyperloop，代码行数:8，代码来源:JSBuffer.cpp


示例14: putForJSBuffer

/**
 * put
 */
JSValueRef putForJSBuffer (JSContextRef ctx, JSObjectRef function, JSObjectRef object, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
{
    BUFFER(buffer);
    ARGCOUNT(4);
    JSValueRef bufValueRef = arguments[0];
    if (!JSValueIsObject(ctx,bufValueRef))
    {
        JSStringRef string = JSStringCreateWithUTF8CString("first argument must be a buffer object");
        JSValueRef message = JSValueMakeString(ctx, string);
        JSStringRelease(string);
        *exception = JSObjectMakeError(ctx, 1, &message, 0);
        return JSValueMakeUndefined(ctx);
    }
    JSObjectRef bufObjectRef = JSValueToObject(ctx,bufValueRef,exception);
    CHECK_EXCEPTION_UNDEFINED
    JSBuffer *srcBuffer = (JSBuffer*)HyperloopGetPrivateObjectAsJSBuffer(bufObjectRef);
    if (srcBuffer==nullptr)
    {
        JSStringRef string = JSStringCreateWithUTF8CString("first argument must be a buffer object (JSBuffer nullptr)");
        JSValueRef message = JSValueMakeString(ctx, string);
        JSStringRelease(string);
        *exception = JSObjectMakeError(ctx, 1, &message, 0);
        return JSValueMakeUndefined(ctx);
    }

    GET_NUMBER(1,srcIndex);
    GET_NUMBER(2,srcLength);
    GET_NUMBER(3,destIndex);

    if (srcLength > srcBuffer->length)
    {
        JSStringRef string = JSStringCreateWithUTF8CString("source length passed in greater than source buffer length");
        JSValueRef message = JSValueMakeString(ctx, string);
        JSStringRelease(string);
        *exception = JSObjectMakeError(ctx, 1, &message, 0);
        return JSValueMakeUndefined(ctx);
    }

    if (srcLength <= 0)
    {
        JSStringRef string = JSStringCreateWithUTF8CString("source length must be greater than 0");
        JSValueRef message = JSValueMakeString(ctx, string);
        JSStringRelease(string);
        *exception = JSObjectMakeError(ctx, 1, &message, 0);
        return JSValueMakeUndefined(ctx);
    }

	throw ref new Exception(0, "JSBuffer's putForJSBuffer has not been implemented on Windows yet.");
    /*void *src = &(srcBuffer->buffer[(int)srcIndex]);
    size_t newsize = (buffer->length - (int)destIndex);
    newsize = newsize + srcLength - newsize;
    void *dest = &(buffer->buffer[(int)destIndex]);

    if (newsize  > buffer->length)
    {
        // new to grow it
        void *copy = malloc(buffer->length);
        size_t copylen = buffer->length;
        memcpy(copy, buffer->buffer, copylen);
        free(buffer->buffer);
        buffer->buffer = malloc(newsize);
        buffer->length = newsize;
        memcpy(buffer->buffer,copy,copylen);
    }
    memcpy(dest, src, (int)srcLength);

    return object;*/
}
开发者ID:pec1985，项目名称:hyperloop，代码行数:71，代码来源:JSBuffer.cpp


示例15: callMethod

static JSValueRef callMethod(JSContextRef jscore_ctx, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef *exception)
{
	pdf_jsimp *imp;
	fz_context *ctx;
	pdf_jsimp_obj *res = NULL;
	JSValueRef resref = NULL;
	int i;
	pdf_jsimp_obj **args = NULL;
	pdf_jsimp_method *meth = JSObjectGetPrivate(function);
	priv_data *pdata = JSObjectGetPrivate(thisObject);
	if (meth == NULL)
	{
		/*
			The attempt to store the method pointer as private data failed, so we
			turn the function into a string, which will have the form "function name() xxx",
			and then lookup the name.
		*/
		char name[STRING_BUF_SIZE];
		char *np;
		char *bp;
		JSStringRef jname = JSValueToStringCopy(jscore_ctx, function, NULL);
		prop *p;
		JSStringGetUTF8CString(jname, name, STRING_BUF_SIZE);
		if (strlen(name) >= FUNCTION_PREAMBLE_LEN)
		{
			np = name + FUNCTION_PREAMBLE_LEN; /* strlen("function "); */
			bp = strchr(np, '(');
			if (bp)
				*bp = 0;
			p = find_prop(pdata->type->props, np);
			if (p && p->type == PROP_FN)
			{
				meth = p->u.fn.meth;
			}
		}
		JSStringRelease(jname);
	}
	if (meth == NULL || pdata == NULL)
		return JSValueMakeUndefined(jscore_ctx);

	imp = pdata->type->imp;
	ctx = imp->ctx;

	fz_var(args);
	fz_var(res);
	fz_try(ctx)
	{
		args = fz_malloc_array(ctx, argumentCount, sizeof(pdf_jsimp_obj));
		for (i = 0; i < argumentCount; i++)
			args[i] = wrap_val(imp, arguments[i]);

		res = meth(imp->nat_ctx, pdata->natobj, argumentCount, args);
		if (res)
			resref = res->ref;
	}
	fz_always(ctx)
	{
		if (args)
		{
			for (i = 0; i < argumentCount; i++)
				pdf_jsimp_drop_obj(imp, args[i]);
			fz_free(ctx, args);
		}
		pdf_jsimp_drop_obj(imp, res);
	}
	fz_catch(ctx)
	{
		return JSValueMakeUndefined(jscore_ctx);
	}

	return resref;
}
开发者ID:azaleafisitania，项目名称:sumatrapdf，代码行数:72，代码来源:pdf-jsimp-jscore.c


示例16: beginDragWithFilesCallback

static JSValueRef beginDragWithFilesCallback(JSContextRef context, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
{
    if (argumentCount < 1)
        return JSValueMakeUndefined(context);

    JSObjectRef filesArray = JSValueToObject(context, arguments[0], 0);

    if (!filesArray)
        return JSValueMakeUndefined(context);

    JSStringRef lengthProperty = JSStringCreateWithUTF8CString("length");
    Vector<UChar> files;
    int filesCount = JSValueToNumber(context, JSObjectGetProperty(context, filesArray, lengthProperty, 0), 0);
    for (int i = 0; i < filesCount; ++i) {
        JSValueRef value = JSObjectGetPropertyAtIndex(context, filesArray, i, 0);
        JSStringRef file = JSValueToStringCopy(context, value, 0);
        files.append(JSStringGetCharactersPtr(file), JSStringGetLength(file));
        files.append(0);
        JSStringRelease(file);
    }

    if (files.isEmpty())
        return JSValueMakeUndefined(context);

    // We should append "0" in the end of |files| so that |DragQueryFileW| retrieved the number of files correctly from Ole Clipboard.
    files.append(0);

    STGMEDIUM hDropMedium = {0};
    hDropMedium.tymed = TYMED_HGLOBAL;
    SIZE_T dropFilesSize = sizeof(DROPFILES) + (sizeof(WCHAR) * files.size());
    hDropMedium.hGlobal = GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, dropFilesSize);
    DROPFILES* dropFiles = reinterpret_cast<DROPFILES*>(GlobalLock(hDropMedium.hGlobal));
    memset(dropFiles, 0, sizeof(DROPFILES));
    dropFiles->pFiles = sizeof(DROPFILES);
    dropFiles->fWide = TRUE;

    UChar* data = reinterpret_cast<UChar*>(reinterpret_cast<BYTE*>(dropFiles) + sizeof(DROPFILES));
    for (size_t i = 0; i < files.size(); ++i)
        data[i] = files[i];
    GlobalUnlock(hDropMedium.hGlobal); 

    STGMEDIUM hFileNameMedium = {0};
    hFileNameMedium.tymed = TYMED_HGLOBAL;
    SIZE_T hFileNameSize = sizeof(WCHAR) * files.size();
    hFileNameMedium.hGlobal = GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, hFileNameSize);
    WCHAR* hFileName = static_cast<WCHAR*>(GlobalLock(hFileNameMedium.hGlobal));
    for (size_t i = 0; i < files.size(); i++)
        hFileName[i] = files[i];
    GlobalUnlock(hFileNameMedium.hGlobal);

    if (draggingInfo) {
        delete draggingInfo;
        draggingInfo = 0;
    }

    COMPtr<DRTDataObject> dataObeject;
    COMPtr<IDropSource> source;
    if (FAILED(DRTDataObject::createInstance(&dataObeject)))
        dataObeject = 0;

    if (FAILED(DRTDropSource::createInstance(&source)))
        source = 0;

    if (dataObeject && source) {
        draggingInfo = new DraggingInfo(dataObeject.get(), source.get());
        draggingInfo->setPerformedDropEffect(DROPEFFECT_COPY);
    }

    if (draggingInfo) {
        draggingInfo->dataObject()->SetData(cfHDropFormat(), &hDropMedium, FALSE);
        draggingInfo->dataObject()->SetData(cfFileNameWFormat(), &hFileNameMedium, FALSE);
        draggingInfo->dataObject()->SetData(cfUrlWFormat(), &hFileNameMedium, FALSE);
        OleSetClipboard(draggingInfo->dataObject());
        down = true;
    }

    JSStringRelease(lengthProperty);
    return JSValueMakeUndefined(context);
}
开发者ID:dzhshf，项目名称:WebKit，代码行数:79，代码来源:EventSender.cpp


示例17: JSStringCreateWithUTF8CString

JSValueRef JSCDocument::evaluateCustomCallback(JSContextRef ctx, JSObjectRef function, JSObjectRef object, size_t argumentCount, const JSValueRef* arguments, JSValueRef* exception) {
	struct JSCDocumentPrivate* privData = (struct JSCDocumentPrivate*)JSObjectGetPrivate(object);

	if (!privData->dom || !privData->dom->xpath) return JSValueMakeUndefined(ctx);
	if (argumentCount < 1) {
		std::string errorMsg = "Wrong number of arguments in evaluate";
		JSStringRef string = JSStringCreateWithUTF8CString(errorMsg.c_str());
		JSValueRef exceptionString = JSValueMakeString(ctx, string);
		JSStringRelease(string);
		*exception = JSValueToObject(ctx, exceptionString, NULL);
		return JSValueMakeUndefined(ctx);
	}

	// make sure first argument is a string
	if (!JSValueIsString(ctx, arguments[0])) {
		std::string errorMsg = "Expected xpath expression as first argument";
		JSStringRef string = JSStringCreateWithUTF8CString(errorMsg.c_str());
		JSValueRef exceptionString = JSValueMakeString(ctx, string);
		JSStringRelease(string);
		*exception = JSValueToObject(ctx, exceptionString, NULL);
		return JSValueMakeUndefined(ctx);
	}

	JSStringRef stringReflocalXPath = JSValueToStringCopy(ctx, arguments[0], NULL);
	size_t localXPathMaxSize = JSStringGetMaximumUTF8CStringSize(stringReflocalXPath);
	char* localXPathBuffer = new char[localXPathMaxSize];
	JSStringGetUTF8CString(stringReflocalXPath, localXPathBuffer, localXPathMaxSize);
	std::string localXPath(localXPathBuffer);
	JSStringRelease(stringReflocalXPath);
	free(localXPathBuffer);

	JSClassRef arbaicaRetClass = JSCXPathResult::getTmpl();

	XPath::XPathValue<std::string>* retVal;

	try {
		if (argumentCount > 1) {
			// make sure second argument is a node
			if (!JSValueIsObject(ctx, arguments[1])) {
				std::string errorMsg = "Second argument is not of type node";
				JSStringRef string = JSStringCreateWithUTF8CString(errorMsg.c_str());
				JSValueRef exceptionString = JSValueMakeString(ctx, string);
				JSStringRelease(string);
				*exception = JSValueToObject(ctx, exceptionString, NULL);
				return JSValueMakeUndefined(ctx);
			}

			Arabica::DOM::Node<std::string>* localContextNode = (Arabica::DOM::Node<std::string>*)JSObjectGetPrivate(JSValueToObject(ctx, arguments[1], NULL));
			retVal = new XPath::XPathValue<std::string>(privData->dom->xpath->evaluate(localXPath, *localContextNode));
		} else {
			retVal = new XPath::XPathValue<std::string>(privData->dom->xpath->evaluate(localXPath, *privData->nativeObj));
		}
	} catch (std::runtime_error e) {
		std::cout << e.what() << std::endl;
		return JSValueMakeUndefined(ctx);
	}

	struct JSCXPathResult::JSCXPathResultPrivate* retPrivData = new JSCXPathResult::JSCXPathResultPrivate();
	retPrivData->dom = privData->dom;
	retPrivData->nativeObj = retVal;

	JSObjectRef arbaicaRetObj = JSObjectMake(ctx, arbaicaRetClass, retPrivData);
	return arbaicaRetObj;

#if 0
	if (args.Length() < 1)
		throw V8Exception("Wrong number of arguments in evaluate");
//  if (!((V8Node::hasInstance(args[1])) && (V8XPathResult::hasInstance(args[3]))))
//    throw V8Exception("Parameter mismatch while calling evaluate");

	v8::Local<v8::Object> self = args.Holder();
	V8DocumentPrivate* privData = V8DOM::toClassPtr<V8DocumentPrivate >(self->GetInternalField(0));

	v8::String::AsciiValue localExpression(args[0]);

	XPath::XPathValue<std::string>* retVal;
	if (args.Length() > 1) {
		Arabica::DOM::Node<std::string>* localContextNode = V8DOM::toClassPtr<Arabica::DOM::Node<std::string> >(args[1]->ToObject()->GetInternalField(0));
		retVal = new XPath::XPathValue<std::string>(privData->dom->xpath->evaluate(*localExpression, *localContextNode));
	} else {
		retVal = new XPath::XPathValue<std::string>(privData->dom->xpath->evaluate(*localExpression, *privData->nativeObj));
	}

	v8::Handle<v8::Function> retCtor = V8XPathResult::getTmpl()->GetFunction();
	v8::Persistent<v8::Object> retObj = v8::Persistent<v8::Object>::New(retCtor->NewInstance());

	V8XPathResult::V8XPathResultPrivate* retPrivData = new V8XPathResult::V8XPathResultPrivate();
	retPrivData->dom = privData->dom;
	retPrivData->nativeObj = retVal;

	retObj->SetInternalField(0, V8DOM::toExternal(retPrivData));

	retObj.MakeWeak(0, V8XPathResult::jsDestructor);
	return retObj;
#endif
}
开发者ID:bjqiwei，项目名称:uscxml，代码行数:96，代码来源:JSCDocumentCustom.cpp



注：本文中的JSValueMakeUndefined函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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