mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-14 10:43:24 +00:00
5998e7b720
Added Element {[sg]et,remove}Attribute
Check for illegal child in Node ops appendChild, insertBefore and replaceChild.
574 lines
16 KiB
C
574 lines
16 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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/*
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* DOM Node, NodeList, NamedNodeMap implementation.
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*/
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#include "dom_priv.h"
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#ifdef DEBUG_shaver
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int DOM_node_indent = 0;
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#endif
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DOM_Node *
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DOM_PopNode(DOM_Node *node)
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{
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return node->parent;
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}
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JSBool
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DOM_PushNode(DOM_Node *node, DOM_Node *parent)
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{
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DOM_Node *iter;
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node->parent = parent;
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node->sibling = NULL;
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node->prev_sibling = NULL;
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node->child = NULL;
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/* First child */
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if (!parent->child) {
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parent->child = node;
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return JS_TRUE;
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}
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/*
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* XXX optimize by using parent->mocha_object to cache last child, and
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* XXX NULLing parent->mocha_object on PopNode?
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*/
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for (iter = parent->child; iter->sibling; iter = iter->sibling)
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; /* empty */
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XP_ASSERT(iter);
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iter->sibling = node;
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node->prev_sibling = iter;
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return JS_TRUE;
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}
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JSObject *
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DOM_ObjectForNode(JSContext *cx, DOM_Node *node)
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{
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if (!node)
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return NULL;
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if (node->mocha_object)
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return node->mocha_object;
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return DOM_NewNodeObject(cx, node);
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}
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JSBool
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dom_node_getter(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
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{
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intN slot;
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DOM_Node *node;
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JSString *str;
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if (!JSVAL_IS_INT(id))
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return JS_TRUE;
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node = (DOM_Node *)JS_GetPrivate(cx, obj);
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if (!node)
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return JS_TRUE;
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slot = JSVAL_TO_INT(id);
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switch(slot) {
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case DOM_NODE_NODENAME:
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if (!node->name) {
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*vp = JSVAL_NULL; /* XXX '#nameless' or some such? */
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return JS_TRUE;
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}
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str = JS_InternString(cx, node->name);
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if (!str)
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return JS_FALSE;
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*vp = STRING_TO_JSVAL(str);
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return JS_TRUE;
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case DOM_NODE_NODETYPE:
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*vp = INT_TO_JSVAL(node->type);
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return JS_TRUE;
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case DOM_NODE_FIRSTCHILD:
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*vp = OBJECT_TO_JSVAL(DOM_ObjectForNodeDowncast(cx, node->child));
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return JS_TRUE;
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case DOM_NODE_NEXTSIBLING:
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*vp = OBJECT_TO_JSVAL(DOM_ObjectForNodeDowncast(cx, node->sibling));
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return JS_TRUE;
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case DOM_NODE_PREVIOUSSIBLING:
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*vp = OBJECT_TO_JSVAL(DOM_ObjectForNodeDowncast(cx,
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node->prev_sibling));
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return JS_TRUE;
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case DOM_NODE_PARENTNODE:
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*vp = OBJECT_TO_JSVAL(DOM_ObjectForNodeDowncast(cx, node->parent));
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return JS_TRUE;
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case DOM_NODE_HASCHILDNODES:
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*vp = BOOLEAN_TO_JSVAL((JSBool)(node->child != NULL));
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return JS_TRUE;
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case DOM_NODE_ATTRIBUTES:
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/* only elements have non-null attributes */
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*vp = JSVAL_NULL;
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return JS_TRUE;
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default:
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XP_ASSERT(0);
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break;
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}
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return JS_TRUE;
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}
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JSBool
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dom_node_setter(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
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{
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return JS_TRUE;
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}
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static void
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node_finalize(JSContext *cx, JSObject *obj)
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{
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DOM_Node *priv = (DOM_Node *)JS_GetPrivate(cx, obj);
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if (!priv)
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return;
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priv->mocha_object = NULL;
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/* XXX walk tree, freeing until we find an object rooting a subgraph */
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}
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static JSClass DOM_NodeClass = {
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"Node", JSCLASS_HAS_PRIVATE,
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JS_PropertyStub, JS_PropertyStub, dom_node_getter, dom_node_setter,
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JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, node_finalize
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};
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JSObject *
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DOM_NewNodeObject(JSContext *cx, DOM_Node *node)
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{
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JSObject *obj;
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obj = JS_ConstructObject(cx, &DOM_NodeClass, NULL, NULL);
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if (!obj)
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return NULL;
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if (!JS_SetPrivate(cx, obj, node)) {
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return NULL;
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}
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node->mocha_object = obj;
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return obj;
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}
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#define REMOVE_FROM_TREE(node) \
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PR_BEGIN_MACRO \
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if (node->prev_sibling) \
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node->prev_sibling->sibling = node->sibling; \
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if (node->sibling) \
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node->sibling->prev_sibling = node->prev_sibling; \
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node->sibling = node->prev_sibling = node->parent = NULL; \
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PR_END_MACRO
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#define FAIL_UNLESS_CHILD(node, refNode) \
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PR_BEGIN_MACRO \
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if (refNode->parent != node) { \
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/* XXX walk the tree looking for it? */ \
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DOM_SignalException(cx, DOM_NOT_FOUND_ERR); \
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return JS_FALSE; \
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} \
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PR_END_MACRO
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static JSBool
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IsLegalChild(DOM_Node *node, DOM_Node *child)
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{
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switch(node->type) {
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case NODE_TYPE_ATTRIBUTE:
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if (child->type == NODE_TYPE_TEXT ||
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child->type == NODE_TYPE_ENTITY_REF)
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return JS_TRUE;
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return JS_FALSE;
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if (child->type == NODE_TYPE_ELEMENT ||
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child->type == NODE_TYPE_COMMENT ||
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child->type == NODE_TYPE_TEXT ||
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child->type == NODE_TYPE_PI ||
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child->type == NODE_TYPE_CDATA ||
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child->type == NODE_TYPE_ENTITY_REF)
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return JS_TRUE;
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return JS_FALSE;
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case NODE_TYPE_ELEMENT:
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case NODE_TYPE_DOCFRAGMENT:
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case NODE_TYPE_ENTITY_REF:
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if (child->type == NODE_TYPE_ELEMENT ||
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child->type == NODE_TYPE_PI ||
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child->type == NODE_TYPE_COMMENT ||
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child->type == NODE_TYPE_TEXT ||
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child->type == NODE_TYPE_CDATA ||
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child->type == NODE_TYPE_ENTITY_REF)
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return JS_TRUE;
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return JS_FALSE;
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case NODE_TYPE_DOCUMENT:
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if(child->type == NODE_TYPE_PI ||
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child->type == NODE_TYPE_COMMENT ||
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child->type == NODE_TYPE_DOCTYPE)
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return JS_TRUE;
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if (child->type == NODE_TYPE_ELEMENT)
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/* XXX check to make sure it's the only one */
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return JS_TRUE;
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return JS_FALSE;
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case NODE_TYPE_DOCTYPE:
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if (child->type == NODE_TYPE_NOTATION ||
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child->type == NODE_TYPE_ENTITY)
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return JS_TRUE;
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return JS_FALSE;
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default: /* PI, COMMENT, TEXT, CDATA, ENTITY, NOTATION */
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return JS_FALSE;
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}
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}
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#define CHECK_LEGAL_CHILD(node, child) \
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PR_BEGIN_MACRO \
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if (!IsLegalChild(node, child)) { \
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DOM_SignalException(cx, DOM_HIERARCHY_REQUEST_ERR); \
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return JS_FALSE; \
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} \
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PR_END_MACRO
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static JSBool
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node_insertBefore(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
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jsval *vp)
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{
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JSObject *newChild, *refChild;
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DOM_Node *newNode, *refNode, *node;
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if (!JS_ConvertArguments(cx, argc, argv, "oo", &newChild, &refChild))
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return JS_FALSE;
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node = (DOM_Node *)JS_GetPrivate(cx, obj);
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if (!node)
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return JS_TRUE;
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newNode = (DOM_Node *)JS_GetPrivate(cx, newChild);
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refNode = (DOM_Node *)JS_GetPrivate(cx, refChild);
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*vp = argv[0]; /* newChild */
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if (!newNode || !refNode) {
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return JS_TRUE;
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}
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CHECK_LEGAL_CHILD(node, newNode);
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FAIL_UNLESS_CHILD(node, refNode);
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REMOVE_FROM_TREE(newNode);
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newNode->parent = node;
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newNode->sibling = refNode;
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newNode->prev_sibling = refNode->prev_sibling;
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refNode->prev_sibling = newNode;
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return node->ops->insertBefore(cx, node, newNode, refNode);
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}
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static JSBool
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node_replaceChild(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
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jsval *vp)
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{
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JSObject *oldChild, *newChild;
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DOM_Node *oldNode, *newNode, *node;
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if (!JS_ConvertArguments(cx, argc, argv, "oo", &newChild, &oldChild))
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return JS_FALSE;
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node = (DOM_Node *)JS_GetPrivate(cx, obj);
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if (!node)
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return JS_TRUE;
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newNode = (DOM_Node *)JS_GetPrivate(cx, newChild);
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oldNode = (DOM_Node *)JS_GetPrivate(cx, oldChild);
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*vp = argv[1]; /* oldChild */
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if (newNode == oldNode ||
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!newNode || !oldNode)
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return JS_TRUE;
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CHECK_LEGAL_CHILD(node, newNode);
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FAIL_UNLESS_CHILD(node, oldNode);
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REMOVE_FROM_TREE(newNode);
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newNode->parent = node;
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oldNode->sibling->prev_sibling = newNode;
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oldNode->prev_sibling->sibling = newNode;
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oldNode->parent = oldNode->sibling = oldNode->prev_sibling = NULL;
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return node->ops->replaceChild(cx, node, newNode, oldNode);
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}
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static JSBool
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node_removeChild(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
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jsval *vp)
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{
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JSObject *deadChild;
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DOM_Node *deadNode, *node;
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if (!JS_ConvertArguments(cx, argc, argv, "o", &deadChild))
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return JS_FALSE;
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*vp = argv[0]; /* deadChild */
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node = (DOM_Node *)JS_GetPrivate(cx, obj);
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deadNode = (DOM_Node *)JS_GetPrivate(cx, deadChild);
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if (!deadNode || !node)
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return JS_TRUE;
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FAIL_UNLESS_CHILD(node, deadNode);
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REMOVE_FROM_TREE(deadNode);
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return node->ops->removeChild(cx, node, deadNode);
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}
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static JSBool
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node_appendChild(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
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jsval *vp)
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{
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JSObject *newChild;
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DOM_Node *newNode, *node, *iter;
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if (!JS_ConvertArguments(cx, argc, argv, "o", &newChild))
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return JS_FALSE;
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*vp = argv[0]; /* newChild */
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node = (DOM_Node *)JS_GetPrivate(cx, obj);
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newNode = (DOM_Node *)JS_GetPrivate(cx, obj);
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if (!node || !newNode)
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return JS_TRUE;
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CHECK_LEGAL_CHILD(node, newNode);
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REMOVE_FROM_TREE(newNode);
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newNode->parent = node;
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iter = node->child;
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if (iter) {
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while (iter->sibling)
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iter = iter->sibling;
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iter->sibling = newNode;
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newNode->prev_sibling = iter;
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} else {
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node->child = newNode;
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}
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return node->ops->appendChild(cx, node, newNode);
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}
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static JSBool
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node_cloneNode(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
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jsval *vp)
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{
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JSBool deep;
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if (!JS_ConvertArguments(cx, argc, argv, "b", &deep))
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return JS_FALSE;
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DOM_SignalException(cx, DOM_NOT_SUPPORTED_ERR);
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/* clone */
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return JS_TRUE;
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}
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static JSBool
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node_equals(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *vp)
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{
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JSObject *node;
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DOM_Node *node1, *node2;
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if (!JS_ConvertArguments(cx, argc, argv, "o", &node))
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return JS_FALSE;
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node1 = (DOM_Node *)JS_GetPrivate(cx, obj);
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node2 = (DOM_Node *)JS_GetPrivate(cx, node);
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*vp = (JSBool)(node1 == node2);
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return JS_TRUE;
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}
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static JSFunctionSpec node_methods[] = {
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{"insertBefore", node_insertBefore, 2},
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{"replaceChild", node_replaceChild, 2},
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{"removeChild", node_removeChild, 1},
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{"appendChild", node_appendChild, 1},
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{"cloneNode", node_cloneNode, 1},
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{"equals", node_equals, 2},
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{0}
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};
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JSPropertySpec dom_node_props[] = {
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{"nodeName", DOM_NODE_NODENAME},
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{"nodeValue", DOM_NODE_NODEVALUE},
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{"nodeType", DOM_NODE_NODETYPE},
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{"parentNode", DOM_NODE_PARENTNODE},
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{"childNodes", DOM_NODE_CHILDNODES},
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{"firstChild", DOM_NODE_FIRSTCHILD},
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{"lastChild", DOM_NODE_LASTCHILD},
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{"previousSibling", DOM_NODE_PREVIOUSSIBLING},
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{"nextSibling", DOM_NODE_NEXTSIBLING},
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{"attributes", DOM_NODE_ATTRIBUTES},
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{"hasChildNodes", DOM_NODE_HASCHILDNODES},
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{0}
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};
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static JSConstDoubleSpec node_static_props[] = {
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{NODE_TYPE_ELEMENT, "ELEMENT"},
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{NODE_TYPE_ATTRIBUTE, "ATTRIBUTE"},
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{NODE_TYPE_PI, "PROCESSING_INSTRUCTION"},
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{NODE_TYPE_CDATA, "CDATA_SECTION"},
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{NODE_TYPE_TEXT, "TEXT"},
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{NODE_TYPE_ENTITY_REF, "ENTITY_REFERENCE"},
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{NODE_TYPE_ENTITY, "ENTITY"},
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{NODE_TYPE_COMMENT, "COMMENT"},
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{NODE_TYPE_DOCUMENT, "DOCUMENT"},
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{NODE_TYPE_DOCTYPE, "DOCUMENT_TYPE"},
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{NODE_TYPE_DOCFRAGMENT, "DOCUMENT_FRAGMENT"},
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{NODE_TYPE_NOTATION, "NOTATION"},
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{0}
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};
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static JSBool
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Node(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *vp)
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{
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return JS_TRUE;
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}
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JSObject *
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dom_NodeInit(JSContext *cx, JSObject *scope)
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{
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JSObject *proto, *ctor;
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proto = JS_InitClass(cx, scope, NULL, &DOM_NodeClass,
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Node, 0,
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dom_node_props, node_methods,
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NULL, NULL);
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if (!proto || !(ctor = JS_GetConstructor(cx, proto)))
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return NULL;
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if (!JS_DefineConstDoubles(cx, ctor, node_static_props))
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return NULL;
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return proto;
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}
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/*
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* NodeList
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*
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* Basically an Array with magic methods.
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*/
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#if 0
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static JSClass DOM_NodeListClass = {
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"NodeList", 0,
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JS_PropertyStub, JS_PropertyStub, JS_PropertyStub, JS_PropertyStub,
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JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, JS_FinalizeStub
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};
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static JSBool
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nodelist_item(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
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jsval *rval)
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{
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uint32 index;
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if (!JS_ConvertArguments(cx, argc, argv, "j", &index))
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return JS_TRUE;
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/* JS_GetElement */
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return JS_TRUE;
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}
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static JSFunctionSpec nodelist_methods[] = {
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{"item", nodelist_item, 1},
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{0},
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};
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static JSBool
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nodelist_size_get(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
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{
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return JS_TRUE;
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}
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static JSPropertySpec nodelist_props[] = {
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{"size", -1, 0, nodelist_size_get},
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{0}
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};
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/*
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* NamedNodeMap
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*
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* Basically an Object with magic resolve and helper methods.
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*/
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static JSBool
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nnm_resolve(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
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{
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return JS_TRUE;
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}
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static JSClass DOM_NamedNodeMapClass = {
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"NamedNodeMap", 0,
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JS_PropertyStub, JS_PropertyStub, JS_PropertyStub, JS_PropertyStub,
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JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, JS_FinalizeStub
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};
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static JSBool
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nnm_getNamedItem(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
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jsval *rval)
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{
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/* JS_GetProperty */
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return JS_TRUE;
|
|
}
|
|
|
|
static JSBool
|
|
nnm_setNamedItem(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
|
|
jsval *rval)
|
|
{
|
|
return JS_TRUE;
|
|
/* JS_SetProperty */
|
|
}
|
|
|
|
static JSBool
|
|
nnm_removeNamedItem(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
|
|
jsval *rval)
|
|
{
|
|
/* JS_DeleteProperty */
|
|
return JS_TRUE;
|
|
}
|
|
|
|
static JSBool
|
|
nnm_item(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
|
|
jsval *rval)
|
|
{
|
|
/* return given slot -- OBJ_GET_SLOT? */
|
|
return JS_TRUE;
|
|
}
|
|
|
|
static JSFunctionSpec nnm_methods[] = {
|
|
{"getNamedItem", nnm_getNamedItem, 1},
|
|
{"setNamedItem", nnm_setNamedItem, 1},
|
|
{"removeNamedItem", nnm_removeNamedItem,1},
|
|
{"item", nnm_item, 1},
|
|
{0}
|
|
};
|
|
|
|
static JSBool
|
|
nnm_get_size(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
|
|
{
|
|
/* return __count__ */
|
|
return JS_FALSE;
|
|
}
|
|
|
|
enum {
|
|
NNM_SIZE = -1
|
|
};
|
|
|
|
static JSPropertySpec nnm_props[] = {
|
|
{"size", NNM_SIZE, 0, nnm_get_size},
|
|
{0}
|
|
};
|
|
|
|
#endif /* 0 */
|