dom_smjs.c

一个用于智能手机的多媒体库适合S60 WinCE的跨平台开发库

		return JS_TRUE;
	/*"baseURI"*/
	case 14:
		/*NOT SUPPORTED YET*/
		*vp = JSVAL_VOID;
		return JS_TRUE;
	/*"textContent"*/
	case 15:
	{
		char *res = dom_flatten_text(n);
		*vp = STRING_TO_JSVAL( JS_NewStringCopyZ(c, res) );
		free(res);
	}
		return JS_TRUE;
	}
	/*not supported*/
	return JS_FALSE;
}

static JSBool dom_node_setProperty(JSContext *c, JSObject *obj, jsval id, jsval *vp)
{
	u32 tag;
	Bool is_doc;
	GF_Node *n;
	GF_ParentNode *par;

	n = dom_get_node(c, obj, &is_doc);
	if (!n) return JS_FALSE;

	if (!JSVAL_IS_INT(id)) return JS_TRUE;

	tag = gf_node_get_tag(n);
	par = (GF_ParentNode*)n;

	switch (JSVAL_TO_INT(id)) {
	/*"nodeValue"*/
	case 1:
		/*we only support element and sg in the Node interface, no set*/
		return JS_FALSE;
	/*"prefix"*/
	case 12:
		/*NOT SUPPORTED YET*/
		return JS_TRUE;
	/*"textContent"*/
	case 15:
		if (!JSVAL_IS_STRING(*vp)) return JS_FALSE;
		/*reset all children*/
		gf_node_unregister_children(n, par->children);
		par->children = NULL;
		gf_dom_add_text_node(n, strdup( JS_GetStringBytes(JSVAL_TO_STRING(*vp)) ) );
		dom_node_changed(n, 1, NULL);
		return JS_TRUE;
	}
	
	/*not supported*/
	return JS_FALSE;
}


/*dom3 document*/

/*don't attempt to do anything with the scenegraph, it may be destroyed
fortunately a sg cannot be created like that...*/
static void dom_document_finalize(JSContext *c, JSObject *obj)
{
	GF_SceneGraph *sg;
	if (!JS_InstanceOf(c, obj, &dom_rt->domDocumentClass, NULL) ) 
		return;

	sg = (GF_SceneGraph*) JS_GetPrivate(c, obj);
	/*the JS proto of the svgClass or a destroyed object*/
	if (!sg) return;

	sg->document = NULL;
	gf_node_unregister(sg->RootNode, NULL);
	if (sg->reference_count) {
		sg->reference_count--;
		if (!sg->reference_count) 
			gf_sg_del(sg);
	}
}

static JSBool dom_document_getProperty(JSContext *c, JSObject *obj, jsval id, jsval *vp)
{
	Bool is_doc;
	u32 prop_id;
	GF_Node *n = dom_get_node(c, obj, &is_doc);
	if (!n || !is_doc) return JS_FALSE;

	if (!JSVAL_IS_INT(id)) return JS_TRUE;
	prop_id = JSVAL_TO_INT(id);
	if (prop_id<=JS_DOM3_NODE_LAST_PROP) return dom_node_getProperty(c, obj, id, vp);

	switch (prop_id) {
	/*"doctype"*/
	case JS_DOM3_NODE_LAST_PROP+1:
		/*NOT SUPPORTED YET*/
		*vp = JSVAL_VOID;
		return JS_TRUE;

	/*implementation - FIXME, this is wrong, we should have our own implementation
		but at the current time we rely on the global object to provide it*/
	case JS_DOM3_NODE_LAST_PROP+2:
		*vp = OBJECT_TO_JSVAL( JS_GetGlobalObject(c) ); 
		return JS_TRUE;

	/*"documentElement"*/
	case JS_DOM3_NODE_LAST_PROP+3:
		*vp = dom_element_construct(c, n);
		return JS_TRUE;
	/*"inputEncoding"*/
	case JS_DOM3_NODE_LAST_PROP+4:
		/*NOT SUPPORTED YET*/
		*vp = JSVAL_VOID;
		return JS_TRUE;
	/*"xmlEncoding"*/
	case JS_DOM3_NODE_LAST_PROP+5:
		/*NOT SUPPORTED YET*/
		*vp = JSVAL_VOID;
		return JS_TRUE;
	/*"xmlStandalone"*/
	case JS_DOM3_NODE_LAST_PROP+6:
		/*NOT SUPPORTED YET*/
		*vp = JSVAL_VOID;
		return JS_TRUE;
	/*"xmlVersion"*/
	case JS_DOM3_NODE_LAST_PROP+7:
		/*NOT SUPPORTED YET*/
		*vp = JSVAL_VOID;
		return JS_TRUE;
	/*"strictErrorChecking"*/
	case JS_DOM3_NODE_LAST_PROP+8:
		/*NOT SUPPORTED YET*/
		*vp = JSVAL_VOID;
		return JS_TRUE;
	/*"documentURI"*/
	case JS_DOM3_NODE_LAST_PROP+9:
		/*NOT SUPPORTED YET*/
		*vp = JSVAL_VOID;
		return JS_TRUE;
	/*"domConfig"*/
	case JS_DOM3_NODE_LAST_PROP+10:
		/*NOT SUPPORTED YET*/
		*vp = JSVAL_VOID;
		return JS_TRUE;
	/*global*/
	case JS_DOM3_NODE_LAST_PROP+11:
		*vp = OBJECT_TO_JSVAL( JS_GetGlobalObject(c) ); 
		return JS_TRUE;
	}
	return JS_FALSE;
}
static JSBool dom_document_setProperty(JSContext *c, JSObject *obj, jsval id, jsval *vp)
{
	u32 prop_id;
	Bool is_doc;
	GF_Node *n = dom_get_node(c, obj, &is_doc);
	if (!n || !is_doc) return JS_FALSE;

	if (!JSVAL_IS_INT(id)) return JS_TRUE;
	prop_id = JSVAL_TO_INT(id);
	if (id<=JS_DOM3_NODE_LAST_PROP) return dom_node_setProperty(c, obj, id, vp);

	switch (prop_id) {
	/*"xmlStandalone"*/
	case JS_DOM3_NODE_LAST_PROP+6:
		break;
	/*"xmlVersion"*/
	case JS_DOM3_NODE_LAST_PROP+7:
		break;
	/*"strictErrorChecking"*/
	case JS_DOM3_NODE_LAST_PROP+8:
		break;
	/*"documentURI"*/
	case JS_DOM3_NODE_LAST_PROP+9:
		break;
	/*"domConfig"*/
	case JS_DOM3_NODE_LAST_PROP+10:
		break;
	/*the rest is read-only*/
	}
	return JS_FALSE;
}

static JSBool xml_document_create_element(JSContext *c, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
	u32 tag;
	GF_Node *n;
	GF_SceneGraph *sg;
	char *name;
	if (!JS_InstanceOf(c, obj, &dom_rt->domDocumentClass, NULL) || !argc || !JSVAL_IS_STRING(argv[0]) ) return JS_FALSE;
	sg = (GF_SceneGraph *) JS_GetPrivate(c, obj);
	if (!sg) return JS_FALSE;
	name = JS_GetStringBytes(JSVAL_TO_STRING(argv[0]));
	if (!name) return JS_FALSE;
	/*NS version*/
	if (argc==2) {
		if (!JSVAL_IS_STRING(argv[1])) return JS_FALSE;
		name = JS_GetStringBytes(JSVAL_TO_STRING(argv[1]));
	}
	if (!name) return JS_FALSE;
	/*browse all our supported DOM implementations*/
	tag = gf_svg_get_element_tag(name);
	if (!tag) tag = TAG_DOMFullNode;
	n = gf_node_new(sg, tag);
	*rval = dom_element_construct(c, n);
	return JS_TRUE;
}

static JSBool xml_document_create_text(JSContext *c, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
	GF_Node *n;
	GF_SceneGraph *sg;
	if (!JS_InstanceOf(c, obj, &dom_rt->domDocumentClass, NULL) ) return JS_FALSE;
	sg = (GF_SceneGraph *) JS_GetPrivate(c, obj);
	if (!sg) return JS_FALSE;

	n = gf_node_new(sg, TAG_DOMText);
	if (argc) {
		((GF_DOMText*)n)->textContent = strdup( JS_GetStringBytes(JS_ValueToString(c, argv[0])) );
	}
	*rval = dom_text_construct(c, n);
	return JS_TRUE;
}

static void xml_doc_gather_nodes(GF_ParentNode *node, char *name, DOMNodeList *nl)
{
	Bool bookmark = 1;
	GF_ChildNodeItem *child;
	const char *node_name;
	if (!node) return;
	if (name) {
		node_name = gf_node_get_class_name((GF_Node*)node);
		if (strcmp(node_name, name)) bookmark = 0;
	}
	if (bookmark) {
		gf_node_register((GF_Node*)node, NULL);
		if (node->sgprivate->scenegraph->reference_count)
			node->sgprivate->scenegraph->reference_count++;
		gf_node_list_add_child(&nl->child, (GF_Node*)node);
	}
	if (node->sgprivate->tag<GF_NODE_FIRST_PARENT_NODE_TAG) return;
	child = node->children;
	while (child) {
		xml_doc_gather_nodes((GF_ParentNode*)child->node, name, nl);
		child = child->next;
	}
}

static JSBool xml_document_elements_by_tag(JSContext *c, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
	DOMNodeList *nl;
	GF_SceneGraph *sg;
	JSObject *new_obj;
	char *name;
	if (!JS_InstanceOf(c, obj, &dom_rt->domDocumentClass, NULL) ) return JS_FALSE;
	sg = (GF_SceneGraph *) JS_GetPrivate(c, obj);
	if (!sg) return JS_FALSE;

	if (!argc || !JSVAL_IS_STRING(argv[0])) return JS_FALSE;
	name = JS_GetStringBytes(JSVAL_TO_STRING(argv[0]));
	/*NS version*/
	if (argc==2) {
		if (!JSVAL_IS_STRING(argv[1])) return JS_FALSE;
		name = JS_GetStringBytes(JSVAL_TO_STRING(argv[1]));
	}

	GF_SAFEALLOC(nl, DOMNodeList);
	if (name && !strcmp(name, "*")) name = NULL;
	xml_doc_gather_nodes((GF_ParentNode*)sg->RootNode, name, nl);
	new_obj = JS_NewObject(c, &dom_rt->domNodeListClass, 0, 0);
	JS_SetPrivate(c, new_obj, nl);
	*rval = OBJECT_TO_JSVAL(new_obj);
	return JS_TRUE;
}

static JSBool xml_document_element_by_id(JSContext *c, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
	GF_Node *n;
	GF_SceneGraph *sg;
	char *id;
	if (!JS_InstanceOf(c, obj, &dom_rt->domDocumentClass, NULL) ) return JS_FALSE;
	sg = (GF_SceneGraph *) JS_GetPrivate(c, obj);
	if (!sg) return JS_FALSE;

	if (!argc || !JSVAL_IS_STRING(argv[0])) return JS_FALSE;
	id = JS_GetStringBytes(JSVAL_TO_STRING(argv[0]));
	n = gf_sg_find_node_by_name(sg, id);
	*rval = dom_element_construct(c, n);
	return JS_TRUE;
}



/*dom3 element*/

static JSBool dom_element_getProperty(JSContext *c, JSObject *obj, jsval id, jsval *vp)
{
	u32 prop_id;
	Bool is_doc;
	GF_Node *n;
	if (!JS_InstanceOf(c, obj, &dom_rt->domElementClass, NULL) ) return JS_FALSE;

	if (!JSVAL_IS_INT(id)) return JS_TRUE;
	prop_id = JSVAL_TO_INT(id);
	if (prop_id<=JS_DOM3_NODE_LAST_PROP) return dom_node_getProperty(c, obj, id, vp);

	n = dom_get_node(c, obj, &is_doc);

	switch (prop_id) {
	/*"tagName"*/
	case JS_DOM3_NODE_LAST_PROP+1:
		*vp = STRING_TO_JSVAL( JS_NewStringCopyZ(c, gf_node_get_class_name(n) ) );
		return JS_TRUE;
	/*"schemaTypeInfo"*/
	case JS_DOM3_NODE_LAST_PROP+2:
		/*NOT SUPPORTED YET*/
		*vp = JSVAL_VOID;
		return JS_TRUE;
	case JS_DOM3_NODE_LAST_PROP+3:
	case JS_DOM3_NODE_LAST_PROP+4:
	case JS_DOM3_NODE_LAST_PROP+5:
	case JS_DOM3_NODE_LAST_PROP+6:
	case JS_DOM3_NODE_LAST_PROP+7:
	case JS_DOM3_NODE_LAST_PROP+8:
	case JS_DOM3_NODE_LAST_PROP+9:
	case JS_DOM3_NODE_LAST_PROP+10:
		return svg_udom_get_property(c, n, prop_id-(JS_DOM3_NODE_LAST_PROP+3), vp);
	}
	return JS_FALSE;
}
static JSBool dom_element_setProperty(JSContext *c, JSObject *obj, jsval id, jsval *vp)
{
	u32 prop_id;
	if (!JS_InstanceOf(c, obj, &dom_rt->domElementClass, NULL) ) return JS_FALSE;

	if (!JSVAL_IS_INT(id)) return JS_TRUE;
	prop_id = JSVAL_TO_INT(id);
	if (prop_id<=JS_DOM3_NODE_LAST_PROP) return dom_node_setProperty(c, obj, id, vp);

	switch (prop_id) {
	case JS_DOM3_NODE_LAST_PROP+3:
	case JS_DOM3_NODE_LAST_PROP+4:
	case JS_DOM3_NODE_LAST_PROP+5:
	case JS_DOM3_NODE_LAST_PROP+6:
	case JS_DOM3_NODE_LAST_PROP+7:
	case JS_DOM3_NODE_LAST_PROP+8:
	case JS_DOM3_NODE_LAST_PROP+9:
		return svg_udom_set_property(c, dom_get_node(c, obj, NULL), prop_id-(JS_DOM3_NODE_LAST_PROP+3), vp);
	default:
		/*rest is read only*/
		return JS_FALSE;
	}
}


static JSBool xml_element_get_attribute(JSContext *c, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
	GF_Node *n;
	char *name;
	if (!JS_InstanceOf(c, obj, &dom_rt->domElementClass, NULL) ) return JS_FALSE;
	if (!argc || !JSVAL_IS_STRING(argv[0])) return JS_FALSE;
	n = dom_get_node(c, obj, NULL);
	name = JS_GetStringBytes(JSVAL_TO_STRING(argv[0]));
	/*NS version*/
	if (argc==2) {
		if (!JSVAL_IS_STRING(argv[1])) return JS_FALSE;
		name = JS_GetStringBytes(JSVAL_TO_STRING(argv[1]));
	}
	if (!name) return JS_FALSE;
	if (n->sgprivate->tag==TAG_DOMFullNode) {
		GF_DOMFullNode *node = (GF_DOMFullNode*)n;
		GF_DOMFullAttribute *att = (GF_DOMFullAttribute*)node->attributes;
		while (att) {
			if ((att->tag==TAG_DOM_ATTRIBUTE_FULL) && !strcmp(att->name, name)) {
				*rval = STRING_TO_JSVAL( JS_NewStringCopyZ(c, (char*)att->data ) );
				return JS_TRUE;
			}
			att = (GF_DOMFullAttribute *) att->next;
		}
	}
	else if (n->sgprivate->tag<=GF_NODE_RANGE_LAST_SVG) {
		GF_FieldInfo info;
		if (gf_svg_get_attribute_by_name(n, name, 0, 0, &info)==GF_OK) {
			char szAtt[4096];
			gf_svg_dump_attribute(n, &info, szAtt);
			*rval = STRING_TO_JSVAL( JS_NewStringCopyZ(c, szAtt) );
			return JS_TRUE;
		}
	}
	*rval = STRING_TO_JSVAL( JS_NewStringCopyZ(c, "") );
	return JS_TRUE;
}


static JSBool xml_element_has_attribute(JSContext *c, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
	GF_Node *n;
	char *name;
	if (!JS_InstanceOf(c, obj, &dom_rt->domElementClass, NULL) ) return JS_FALSE;
	if (!argc || !JSVAL_IS_STRING(argv[0])) return JS_FALSE;
	n = dom_get_node(c, obj, NULL);
	name = JS_GetStringBytes(JSVAL_TO_STRING(argv[0]));
	/*NS version*/
	if (argc==2) {
		if (!JSVAL_IS_STRING(argv[1])) return JS_FALSE;
		name = JS_GetStringBytes(JSVAL_TO_STRING(argv[1]));
	}
	if (!name) return JS_FALSE;
	if (n->sgprivate->tag==TAG_DOMFullNode) {
		GF_DOMFullNode *node = (GF_DOMFullNode*)n;
		GF_DOMFullAttribute *att = (GF_DOMFullAttribute*)node->attributes;
		while (att) {
			if ((att->tag==TAG_DOM_ATTRIBUTE_FULL) && !strcmp(att->name, name)) {
				*rval = BOOLEAN_TO_JSVAL(JS_TRUE);
				return JS_TRUE;
			}
			att = (GF_DOMFullAttribute *) att->next;
		}
	}
	else if (n->sgprivate->tag<=GF_NODE_RANGE_LAST_SVG) {
		GF_FieldInfo info;
		if (gf_svg_get_attribute_by_name(n, name, 0, 0, &info)==GF_OK) {
			*rval = BOOLEAN_TO_JSVAL(JS_TRUE);
			return JS_TRUE;
		}
	}
	*rval = BOOLEAN_TO_JSVAL(JS_FALSE);
	return JS_TRUE;
}



static JSBool xml_element_remove_attribute(JSContext *c, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
	u32 tag;
	GF_DOMFullNode *node;
	GF_DOMFullAttribute *prev, *att;