/*

 * Copyright (C) 2006 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.

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``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 COMPUTER, INC. OR

 * 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 "JSNode.h"

#include "JSNodeList.h"

#include "JSObjectRef.h"

#include "JSStringRef.h"

#include "JSValueRef.h"

#include "Node.h"

#include "NodeList.h"

#include "UnusedParam.h"

#include <wtf/Assertions.h>

static JSValueRef JSNode_appendChild(JSContextRef context, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)

{

    UNUSED_PARAM(function);

    /* Example of throwing a type error for invalid values */

    if (!JSValueIsObjectOfClass(context, thisObject, JSNode_class(context))) {

        JSStringRef message = JSStringCreateWithUTF8CString("TypeError: appendChild can only be called on nodes");

        *exception = JSValueMakeString(context, message);

        JSStringRelease(message);

    } else if (argumentCount < 1 || !JSValueIsObjectOfClass(context, arguments[0], JSNode_class(context))) {

        JSStringRef message = JSStringCreateWithUTF8CString("TypeError: first argument to appendChild must be a node");

        *exception = JSValueMakeString(context, message);

        JSStringRelease(message);

    } else {

        Node* node = JSObjectGetPrivate(thisObject);

        Node* child = JSObjectGetPrivate(JSValueToObject(context, arguments[0], NULL));

        Node_appendChild(node, child);

    }

    return JSValueMakeUndefined(context);

}

static JSValueRef JSNode_removeChild(JSContextRef context, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)

{

    UNUSED_PARAM(function);

    /* Example of ignoring invalid values */

    if (argumentCount > 0) {

        if (JSValueIsObjectOfClass(context, thisObject, JSNode_class(context))) {

            if (JSValueIsObjectOfClass(context, arguments[0], JSNode_class(context))) {

                Node* node = JSObjectGetPrivate(thisObject);

                Node* child = JSObjectGetPrivate(JSValueToObject(context, arguments[0], exception));

                Node_removeChild(node, child);

            }

        }

    }

    return JSValueMakeUndefined(context);

}

static JSValueRef JSNode_replaceChild(JSContextRef context, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)

{

    UNUSED_PARAM(function);

    if (argumentCount > 1) {

        if (JSValueIsObjectOfClass(context, thisObject, JSNode_class(context))) {

            if (JSValueIsObjectOfClass(context, arguments[0], JSNode_class(context))) {

                if (JSValueIsObjectOfClass(context, arguments[1], JSNode_class(context))) {

                    Node* node = JSObjectGetPrivate(thisObject);

                    Node* newChild = JSObjectGetPrivate(JSValueToObject(context, arguments[0], exception));

                    Node* oldChild = JSObjectGetPrivate(JSValueToObject(context, arguments[1], exception));

                    Node_replaceChild(node, newChild, oldChild);

                }

            }

        }

    }

    return JSValueMakeUndefined(context);

}

static JSStaticFunction JSNode_staticFunctions[] = {

    { "appendChild", JSNode_appendChild, kJSPropertyAttributeDontDelete },

    { "removeChild", JSNode_removeChild, kJSPropertyAttributeDontDelete },

    { "replaceChild", JSNode_replaceChild, kJSPropertyAttributeDontDelete },

    { 0, 0, 0 }

};

static JSValueRef JSNode_getNodeType(JSContextRef context, JSObjectRef object, JSStringRef propertyName, JSValueRef* exception)

{

    UNUSED_PARAM(propertyName);

    UNUSED_PARAM(exception);

    Node* node = JSObjectGetPrivate(object);

    if (node) {

        JSStringRef nodeType = JSStringCreateWithUTF8CString(node->nodeType);

        JSValueRef value = JSValueMakeString(context, nodeType);

        JSStringRelease(nodeType);

        return value;

    }

    return NULL;

}

static JSValueRef JSNode_getChildNodes(JSContextRef context, JSObjectRef thisObject, JSStringRef propertyName, JSValueRef* exception)

{

    UNUSED_PARAM(propertyName);

    UNUSED_PARAM(exception);

    Node* node = JSObjectGetPrivate(thisObject);

    ASSERT(node);

    return JSNodeList_new(context, NodeList_new(node));

}

static JSValueRef JSNode_getFirstChild(JSContextRef context, JSObjectRef object, JSStringRef propertyName, JSValueRef* exception)

{

    UNUSED_PARAM(object);

    UNUSED_PARAM(propertyName);

    UNUSED_PARAM(exception);

    return JSValueMakeUndefined(context);

}

static JSStaticValue JSNode_staticValues[] = {

    { "nodeType", JSNode_getNodeType, NULL, kJSPropertyAttributeDontDelete | kJSPropertyAttributeReadOnly },

    { "childNodes", JSNode_getChildNodes, NULL, kJSPropertyAttributeDontDelete | kJSPropertyAttributeReadOnly },

    { "firstChild", JSNode_getFirstChild, NULL, kJSPropertyAttributeDontDelete | kJSPropertyAttributeReadOnly },

    { 0, 0, 0, 0 }

};

static void JSNode_initialize(JSContextRef context, JSObjectRef object)

{

    UNUSED_PARAM(context);

    Node* node = JSObjectGetPrivate(object);

    ASSERT(node);

    Node_ref(node);

}

static void JSNode_finalize(JSObjectRef object)

{

    Node* node = JSObjectGetPrivate(object);

    ASSERT(node);

    Node_deref(node);

}

JSClassRef JSNode_class(JSContextRef context)

{

    UNUSED_PARAM(context);

    static JSClassRef jsClass;

    if (!jsClass) {

        JSClassDefinition definition = kJSClassDefinitionEmpty;

        definition.staticValues = JSNode_staticValues;

        definition.staticFunctions = JSNode_staticFunctions;

        definition.initialize = JSNode_initialize;

        definition.finalize = JSNode_finalize;

        jsClass = JSClassCreate(&definition);

    }

    return jsClass;

}

JSObjectRef JSNode_new(JSContextRef context, Node* node)

{

    return JSObjectMake(context, JSNode_class(context), node);

}

JSObjectRef JSNode_construct(JSContextRef context, JSObjectRef object, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)

{

    UNUSED_PARAM(object);

    UNUSED_PARAM(argumentCount);

    UNUSED_PARAM(arguments);

    UNUSED_PARAM(exception);

    return JSNode_new(context, Node_new());

}