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201 lines (165 loc) · 7.34 KB
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/*
* Copyright (C) 2006-2022 Apple 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 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 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 "config.h"
#include "JSNode.h"
#include "JSNodeList.h"
#include "JSObjectRef.h"
#include "JSStringRef.h"
#include "JSValueRef.h"
#include "Node.h"
#include "NodeList.h"
#include <wtf/Assertions.h>
WTF_ALLOW_UNSAFE_BUFFER_USAGE_BEGIN
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 const 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 const 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());
}
WTF_ALLOW_UNSAFE_BUFFER_USAGE_END