mgjs_htmlelement.cpp

monqueror一个很具有参考价值的源玛

#include "mgjs_main.h"

#include <../misc/htmlattrs.h>		
static JSBool GetHTMLElementProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp);
static JSBool SetHTMLElementProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp);

enum HTMLElement_slots {
  HTMLELEMENT_ID ,
  HTMLELEMENT_TITLE ,
  HTMLELEMENT_LANG ,
  HTMLELEMENT_DIR ,
  HTMLELEMENT_CLASSNAME ,

};
static JSBool GetHTMLElementProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
{
	myJSElementPrivate *mElementPrivate=(myJSElementPrivate *)JS_GetPrivate(cx,obj);
	HTMLElementImpl *e;
	DOMString dsReturn=(const char*)"";
	e=(HTMLElementImpl *)mElementPrivate->CurNode;
	if(!e)return JS_FALSE;
	if (JSVAL_IS_INT(id)) {
		switch (JSVAL_TO_INT(id)) {
        case HTMLELEMENT_ID:
			dsReturn=e->getAttribute(ATTR_ID);
			*vp=STRING_TO_JSVAL (JS_NewStringCopyZ (cx,dsReturn.string()));
			break;
		case HTMLELEMENT_TITLE:
			dsReturn=e->getAttribute(ATTR_TITLE);
			*vp=STRING_TO_JSVAL (JS_NewStringCopyZ (cx,dsReturn.string()));
			break;
		case HTMLELEMENT_LANG :
			dsReturn=e->getAttribute(ATTR_LANG);
			*vp=STRING_TO_JSVAL (JS_NewStringCopyZ (cx,dsReturn.string()));
			break;
		case HTMLELEMENT_DIR :
			dsReturn=e->getAttribute(ATTR_DIR);
			*vp=STRING_TO_JSVAL (JS_NewStringCopyZ (cx,dsReturn.string()));
			break;
		case HTMLELEMENT_CLASSNAME :
			dsReturn=e->getAttribute(ATTR_CLASS);
			*vp=STRING_TO_JSVAL (JS_NewStringCopyZ (cx,dsReturn.string()));
			break;
		}
	}

 	return JS_TRUE;
}
static JSBool SetHTMLElementProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
{
	myJSElementPrivate *mElementPrivate=(myJSElementPrivate *)JS_GetPrivate(cx,obj);
	HTMLElementImpl *e;
	DOMString dsValue;
	e=(HTMLElementImpl *)mElementPrivate->CurNode;
	JSString *jss;
    if (!(jss = JS_ValueToString (cx,*vp)))return JS_FALSE;
  	dsValue = (const char*)JS_GetStringBytes (jss);
	if(!e)return JS_FALSE;
	if (JSVAL_IS_INT(id)) {
		switch (JSVAL_TO_INT(id)) {
        case HTMLELEMENT_ID:
			e->setAttribute(ATTR_ID,dsValue);
			break;
		case HTMLELEMENT_TITLE:
			e->setAttribute(ATTR_TITLE,dsValue);
			break;
		case HTMLELEMENT_LANG :
			e->setAttribute(ATTR_LANG,dsValue);
			break;
		case HTMLELEMENT_DIR :
			e->setAttribute(ATTR_DIR,dsValue);
			break;
		case HTMLELEMENT_CLASSNAME :
			e->setAttribute(ATTR_CLASS,dsValue);
			break;
		}
	}
	return JS_TRUE;
}
static JSPropertySpec HTMLElementProperties[] =
{
  {"id",    HTMLELEMENT_ID,    JSPROP_ENUMERATE},
  {"title",    HTMLELEMENT_TITLE,    JSPROP_ENUMERATE},
  {"lang",    HTMLELEMENT_LANG,    JSPROP_ENUMERATE},
  {"dir",    HTMLELEMENT_DIR,    JSPROP_ENUMERATE},
  {"className",    HTMLELEMENT_CLASSNAME,    JSPROP_ENUMERATE},
  {0}
};
JSClass HTMLElementClass = {
  "HTMLElement", 
  JSCLASS_HAS_PRIVATE ,
  JS_PropertyStub,
  JS_PropertyStub,
  GetHTMLElementProperty,
  SetHTMLElementProperty,
  JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, JS_FinalizeStub
};
static JSFunctionSpec HTMLElementMethods[] = 
{
  {0}
};

JSObject* InitHTMLElementClass(JSContext *cx,JSObject *globalObj,JSObject *proto)
{
	JSObject *obj;
	obj = JS_DefineObject (cx,globalObj, "HtmlElement", &HTMLElementClass,0,JSPROP_ENUMERATE);
    JS_DefineProperties (cx,obj,HTMLElementProperties);
    JS_DefineFunctions (cx,obj,HTMLElementMethods);
	return obj;
}
JSObject* NewScriptHTMLElement(JSContext *cx,JSObject *proto,JSObject *parent,ElementImpl *eImpl)
{
	JSObject *obj;
	obj=JS_NewObject(cx,&HTMLElementClass,proto,NULL);
	myJSElementPrivate *mElementPrivate=new myJSElementPrivate;
	mElementPrivate->CurNode=(ElementImpl*)eImpl;	
	JS_SetPrivate(cx,obj,(void*)mElementPrivate);
	return obj;
}