accessibilityuielement.cpp

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    JSValueRef result = JSValueMakeString(context, toAXElement(thisObject)->attributeValue(attribute));
    if (attribute)
        JSStringRelease(attribute);
    return result;
}

static JSValueRef cellForColumnAndRowCallback(JSContextRef context, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
{
    unsigned column = 0, row = 0;
    if (argumentCount == 2) {
        column = JSValueToNumber(context, arguments[0], exception);
        row = JSValueToNumber(context, arguments[1], exception);
    }
    
    return AccessibilityUIElement::makeJSAccessibilityUIElement(context, toAXElement(thisObject)->cellForColumnAndRow(column, row));
}

static JSValueRef titleUIElementCallback(JSContextRef context, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
{
    return AccessibilityUIElement::makeJSAccessibilityUIElement(context, toAXElement(thisObject)->titleUIElement());
}

static JSValueRef parentElementCallback(JSContextRef context, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
{
    return AccessibilityUIElement::makeJSAccessibilityUIElement(context, toAXElement(thisObject)->parentElement());
}

static JSValueRef setSelectedTextRangeCallback(JSContextRef context, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
{
    unsigned location = UINT_MAX, length = 0;
    if (argumentCount == 2) {
        location = JSValueToNumber(context, arguments[0], exception);
        length = JSValueToNumber(context, arguments[1], exception);
    }
    
    toAXElement(thisObject)->setSelectedTextRange(location, length);
    return 0;
}

// Static Value Getters

static JSValueRef getRoleCallback(JSContextRef context, JSObjectRef thisObject, JSStringRef propertyName, JSValueRef* exception)
{
    JSRetainPtr<JSStringRef> role(Adopt, toAXElement(thisObject)->role());
    return JSValueMakeString(context, role.get());
}

static JSValueRef getTitleCallback(JSContextRef context, JSObjectRef thisObject, JSStringRef propertyName, JSValueRef* exception)
{
    JSRetainPtr<JSStringRef> title(Adopt, toAXElement(thisObject)->title());
    return JSValueMakeString(context, title.get());
}

static JSValueRef getDescriptionCallback(JSContextRef context, JSObjectRef thisObject, JSStringRef propertyName, JSValueRef* exception)
{
    JSRetainPtr<JSStringRef> description(Adopt, toAXElement(thisObject)->description());
    return JSValueMakeString(context, description.get());
}

static JSValueRef getWidthCallback(JSContextRef context, JSObjectRef thisObject, JSStringRef propertyName, JSValueRef* exception)
{
    return JSValueMakeNumber(context, toAXElement(thisObject)->width());
}

static JSValueRef getHeightCallback(JSContextRef context, JSObjectRef thisObject, JSStringRef propertyName, JSValueRef* exception)
{
    return JSValueMakeNumber(context, toAXElement(thisObject)->height());
}

static JSValueRef getIntValueCallback(JSContextRef context, JSObjectRef thisObject, JSStringRef propertyName, JSValueRef* exception)
{
    return JSValueMakeNumber(context, toAXElement(thisObject)->intValue());
}

static JSValueRef getMinValueCallback(JSContextRef context, JSObjectRef thisObject, JSStringRef propertyName, JSValueRef* exception)
{
    return JSValueMakeNumber(context, toAXElement(thisObject)->minValue());
}

static JSValueRef getMaxValueCallback(JSContextRef context, JSObjectRef thisObject, JSStringRef propertyName, JSValueRef* exception)
{
    return JSValueMakeNumber(context, toAXElement(thisObject)->maxValue());
}

static JSValueRef getInsertionPointLineNumberCallback(JSContextRef context, JSObjectRef thisObject, JSStringRef propertyName, JSValueRef* exception)
{
    return JSValueMakeNumber(context, toAXElement(thisObject)->insertionPointLineNumber());
}

static JSValueRef getSelectedTextRangeCallback(JSContextRef context, JSObjectRef thisObject, JSStringRef propertyName, JSValueRef* exception)
{
    JSRetainPtr<JSStringRef> selectedTextRange(Adopt, toAXElement(thisObject)->selectedTextRange());
    return JSValueMakeString(context, selectedTextRange.get());
}

static JSValueRef getSupportsPressActionCallback(JSContextRef context, JSObjectRef thisObject, JSStringRef propertyName, JSValueRef* exception)
{
    return JSValueMakeBoolean(context, toAXElement(thisObject)->supportsPressAction());
}

// Destruction

static void finalize(JSObjectRef thisObject)
{
    delete toAXElement(thisObject);
}

// Object Creation

JSObjectRef AccessibilityUIElement::makeJSAccessibilityUIElement(JSContextRef context, const AccessibilityUIElement& element)
{
    return JSObjectMake(context, AccessibilityUIElement::getJSClass(), new AccessibilityUIElement(element));
}

JSClassRef AccessibilityUIElement::getJSClass()
{
    static JSStaticValue staticValues[] = {
        { "role", getRoleCallback, 0, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "title", getTitleCallback, 0, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "description", getDescriptionCallback, 0, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "width", getWidthCallback, 0, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "height", getHeightCallback, 0, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "intValue", getIntValueCallback, 0, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "minValue", getMinValueCallback, 0, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "maxValue", getMaxValueCallback, 0, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "insertionPointLineNumber", getInsertionPointLineNumberCallback, 0, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "selectedTextRange", getSelectedTextRangeCallback, 0, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "supportsPressAction", getSupportsPressActionCallback, 0, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { 0, 0, 0, 0 }
    };

    static JSStaticFunction staticFunctions[] = {
        { "allAttributes", allAttributesCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "attributesOfLinkedUIElements", attributesOfLinkedUIElementsCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "attributesOfDocumentLinks", attributesOfDocumentLinksCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "attributesOfChildren", attributesOfChildrenCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "parameterizedAttributeNames", parameterizedAttributeNamesCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "lineForIndex", lineForIndexCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "boundsForRange", boundsForRangeCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "childAtIndex", childAtIndexCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "attributesOfColumnHeaders", attributesOfColumnHeadersCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "attributesOfRowHeaders", attributesOfRowHeadersCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "attributesOfColumns", attributesOfColumnsCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "attributesOfRows", attributesOfRowsCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "attributesOfVisibleCells", attributesOfVisibleCellsCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "attributesOfHeader", attributesOfHeaderCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "indexInTable", indexInTableCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "rowIndexRange", rowIndexRangeCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "columnIndexRange", columnIndexRangeCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "cellForColumnAndRow", cellForColumnAndRowCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "titleUIElement", titleUIElementCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "setSelectedTextRange", setSelectedTextRangeCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "attributeValue", attributeValueCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "isAttributeSettable", isAttributeSettableCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "parentElement", parentElementCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { 0, 0, 0 }
    };

    static JSClassDefinition classDefinition = {
        0, kJSClassAttributeNone, "AccessibilityUIElement", 0, staticValues, staticFunctions,
        0, finalize, 0, 0, 0, 0, 0, 0, 0, 0, 0
    };

    static JSClassRef accessibilityUIElementClass = JSClassCreate(&classDefinition);
    return accessibilityUIElementClass;
}