mgjs_htmlformelement.cpp

monqueror一个很具有参考价值的源玛

#include "mgjs_main.h"

#include <htmlattrs.h>
#include <html_formimpl.h>
#include <html_miscimpl.h>
#include <htmltags.h>

#define TEMPSTRINGMAX 512

static JSBool GetHTMLFormElementProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp);
static JSBool SetHTMLFormElementProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp);
static JSBool EnumerateHTMLFormElement(JSContext *cx, JSObject *obj);
static JSBool ResolveHTMLFormElement(JSContext *cx, JSObject *obj,jsval id);
static JSBool FinalizeHTMLFormElement(JSContext *cx, JSObject *obj);
static JSBool HTMLFormElementSubmit (JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval);
static JSBool HTMLFormElementReset (JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval);
static JSBool NSHTMLFormElementNamedItem (JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval);
static JSBool NSHTMLFormElementItem (JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval);
bool HTMLFORMELEMENT_IsInternalMethod(char s[]);
static JSBool HTMLFORMELEMENT_GetElementByNameCommon(JSContext *cx, JSObject *obj, DOMString elementName,jsval *rval);
static JSBool HTMLFORMELEMENT_GetElementByIndexCommon(JSContext *cx, JSObject *obj, int index,jsval *rval);
		
enum HTMLFormElement_slots {
  HTMLFORMELEMENT_ELEMENTS ,
  HTMLFORMELEMENT_LENGTH ,
  HTMLFORMELEMENT_NAME ,
  HTMLFORMELEMENT_ACCEPTCHARSET ,
  HTMLFORMELEMENT_ACTION ,
  HTMLFORMELEMENT_ENCTYPE ,
  HTMLFORMELEMENT_METHOD ,
  HTMLFORMELEMENT_TARGET ,
  
  NSHTMLFORMELEMENT_ENCODING ,
};

static JSBool GetHTMLFormElementProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
{
	myJSFormPrivate *mFormPrivate=(myJSFormPrivate *)JS_GetPrivate(cx,obj);
	JSObject *eobj;
	DOMString ds;
	char s[TEMPSTRINGMAX+1];
	JSString *jss;
	long int len;
	bool bIsInternalMethod;
	if(!mFormPrivate)return JS_FALSE;
		
	HTMLElementImpl *impl;
	impl=(HTMLElementImpl*)mFormPrivate->CurNode;
	if (JSVAL_IS_INT(id)) {
		switch (JSVAL_TO_INT(id)) {
        case HTMLFORMELEMENT_ELEMENTS:
			eobj=NewScriptHTMLCollectionElement(cx,JS_GetPrototype(cx,obj),0,impl,FORM_ELEMENTS);
			*vp=OBJECT_TO_JSVAL(eobj);
			break;
		case HTMLFORMELEMENT_LENGTH:
			len=((HTMLFormElementImpl*)impl)->length();	
			*vp=INT_TO_JSVAL(len);
			break;
		case HTMLFORMELEMENT_NAME:
			ds=impl->getAttribute(ATTR_NAME);
			*vp=STRING_TO_JSVAL(JS_NewStringCopyZ(cx,ds.string()));
			break;
		case HTMLFORMELEMENT_METHOD:
			ds=impl->getAttribute(ATTR_METHOD);
			*vp=STRING_TO_JSVAL (JS_NewStringCopyZ (cx,ds.string()));
			break;
		case HTMLFORMELEMENT_TARGET:
			ds=impl->getAttribute(ATTR_TARGET);
			*vp=STRING_TO_JSVAL(JS_NewStringCopyZ(cx,ds.string()));
			break;
		case HTMLFORMELEMENT_ACCEPTCHARSET:
			ds=impl->getAttribute(ATTR_ACCEPT_CHARSET);
			*vp=STRING_TO_JSVAL(JS_NewStringCopyZ(cx,ds.string()));
			break;
		case HTMLFORMELEMENT_ENCTYPE:
			ds=impl->getAttribute(ATTR_ENCTYPE);
			*vp=STRING_TO_JSVAL(JS_NewStringCopyZ(cx,ds.string()));
			break;
		case HTMLFORMELEMENT_ACTION:
			ds=impl->getAttribute(ATTR_ACTION);
			*vp=STRING_TO_JSVAL(JS_NewStringCopyZ(cx,ds.string()));
			break;
		}
	}
	else
		{
		if (!(jss = JS_ValueToString (cx, id)))return JS_FALSE;
  		strncpy(s,(const char*)JS_GetStringBytes (jss),TEMPSTRINGMAX);
		bIsInternalMethod=HTMLFORMELEMENT_IsInternalMethod(s);
		if(!bIsInternalMethod)
			return HTMLFORMELEMENT_GetElementByNameCommon(cx,obj,s,vp);
		}
	return JS_TRUE;
}
static JSBool SetHTMLFormElementProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
{
	myJSFormPrivate *mFormPrivate=(myJSFormPrivate *)JS_GetPrivate(cx,obj);
	HTMLElementImpl *impl;
	impl=(HTMLElementImpl*)mFormPrivate->CurNode;
	if(!impl)return JS_FALSE;
	DOMString dsValue;
	JSString *jss;
    if (!(jss = JS_ValueToString (cx,*vp)))return JS_FALSE;
  	dsValue = (const char*)JS_GetStringBytes (jss);
	if (JSVAL_IS_INT(id)) {
		switch (JSVAL_TO_INT(id)) {
#if 0
		//readonly				
	    case HTMLFORMELEMENT_ELEMENTS:
		case HTMLFORMELEMENT_LENGTH:
#endif				
		case HTMLFORMELEMENT_NAME:
    		((ElementImpl *)impl)->setAttribute(ATTR_NAME, dsValue);
			break;
		case HTMLFORMELEMENT_ACCEPTCHARSET:
    		((ElementImpl *)impl)->setAttribute(ATTR_ACCEPT_CHARSET, dsValue);
			break;
		case HTMLFORMELEMENT_ACTION:
		    ((ElementImpl *)impl)->setAttribute(ATTR_ACTION, dsValue);
			break;
		case HTMLFORMELEMENT_ENCTYPE:
    		((ElementImpl *)impl)->setAttribute(ATTR_ENCTYPE, dsValue);
			break;
		case HTMLFORMELEMENT_METHOD:
    		((ElementImpl *)impl)->setAttribute(ATTR_METHOD, dsValue);
			break;
		case HTMLFORMELEMENT_TARGET:
			((ElementImpl *)impl)->setAttribute(ATTR_TARGET, dsValue);
			break;
		}
	}
	return JS_TRUE;
}
static JSBool EnumerateHTMLFormElement(JSContext *cx, JSObject *obj)
{
	return JS_EnumerateStandardClasses(cx,obj);
}
static JSBool ResolveHTMLFormElement(JSContext *cx, JSObject *obj,jsval id)
{
	return JS_TRUE;
}
static JSBool FinalizeHTMLFormElement(JSContext *cx, JSObject *obj)
{
	return JS_TRUE;
}
static JSBool NSHTMLFormElementNamedItem (JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
	DOMString elementName;
	JSString *jss;
 	if(argc<1)return JS_FALSE;
 	if (!(jss = JS_ValueToString (cx, argv[0])))return JS_FALSE;
  	elementName = (const char*)JS_GetStringBytes (jss);
	return HTMLFORMELEMENT_GetElementByNameCommon(cx,obj,elementName,rval);
}
static JSBool NSHTMLFormElementItem (JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
	int index;
	if(argc<1)return JS_FALSE;
    index = JSVAL_TO_INT(argv[0]);
	if(index<0)return JS_FALSE;
	return HTMLFORMELEMENT_GetElementByIndexCommon(cx,obj,index,rval);
}
static JSBool HTMLFormElementSubmit (JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
	myJSFormPrivate *mFormPrivate=(myJSFormPrivate *)JS_GetPrivate(cx,obj);
	DOM::HTMLFormElementImpl* formImpl;
	formImpl=(HTMLFormElementImpl*)mFormPrivate->CurNode;
	if(!formImpl)return JS_FALSE;
	formImpl->submit();
	return JS_TRUE;
}
static JSBool HTMLFormElementReset (JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
	myJSFormPrivate *mFormPrivate=(myJSFormPrivate *)JS_GetPrivate(cx,obj);
	DOM::HTMLFormElementImpl* formImpl;
	formImpl=(HTMLFormElementImpl*)mFormPrivate->CurNode;
	if(!formImpl)return JS_FALSE;
	formImpl->reset();
	return JS_TRUE;
}	

JSClass HTMLFormElementClass = {
  "HTMLFormElement", 
  JSCLASS_HAS_PRIVATE,
  JS_PropertyStub,JS_PropertyStub,
  GetHTMLFormElementProperty,SetHTMLFormElementProperty,
  EnumerateHTMLFormElement,ResolveHTMLFormElement,
  JS_ConvertStub, JS_FinalizeStub
};


static JSPropertySpec HTMLFormElementProperties[] =
{
  {"elements",    HTMLFORMELEMENT_ELEMENTS,    JSPROP_ENUMERATE | JSPROP_READONLY},
  {"length",    HTMLFORMELEMENT_LENGTH,    JSPROP_ENUMERATE | JSPROP_READONLY},
  {"name",    HTMLFORMELEMENT_NAME,    JSPROP_ENUMERATE},
  {"acceptCharset",    HTMLFORMELEMENT_ACCEPTCHARSET,    JSPROP_ENUMERATE},
  {"action",    HTMLFORMELEMENT_ACTION,    JSPROP_ENUMERATE},
  {"enctype",    HTMLFORMELEMENT_ENCTYPE,    JSPROP_ENUMERATE},
  {"method",    HTMLFORMELEMENT_METHOD,    JSPROP_ENUMERATE},
  {"target",    HTMLFORMELEMENT_TARGET,    JSPROP_ENUMERATE},
  {0}
};

static JSFunctionSpec HTMLFormElementMethods[] = 
{
  {"submit",          HTMLFormElementSubmit,     0},
  {"reset",          HTMLFormElementReset,     0},
  {"namedItem",          NSHTMLFormElementNamedItem,     1},
  {"item",          NSHTMLFormElementItem,     1},
  {0}
};

JSObject* InitFormElementClass(JSContext *cx,JSObject *globalObj,JSObject *proto)
{
	JSObject *Obj;
	Obj = JS_DefineObject (cx,globalObj, "HtmlFormElement", &HTMLFormElementClass,proto,JSPROP_ENUMERATE);
    JS_DefineProperties (cx,Obj,HTMLFormElementProperties);
    JS_DefineFunctions (cx,Obj,HTMLFormElementMethods);
	return Obj;
}			
	
JSObject* NewScriptHTMLFormElement(JSContext *cx,JSObject *proto,JSObject *parent,ElementImpl *eImpl)
{
	JSObject *obj;
	JSObject *global = JS_GetGlobalObject(cx);
	jsval vp;
	if ((JS_TRUE == JS_LookupProperty(cx, global, "HtmlFormElement", &vp) && JSVAL_IS_OBJECT(vp)))
		obj=JS_NewObject(cx,&HTMLFormElementClass,JSVAL_TO_OBJECT(vp),NULL);
	else
		obj=InitFormElementClass(cx,JS_GetParent(cx,proto),proto);
	myJSFormPrivate *mFormPrivate=new myJSFormPrivate;
	mFormPrivate->CurNode=(ElementImpl*)eImpl;
	JS_SetPrivate(cx,obj,(void*)mFormPrivate);
	return obj;
}
static JSBool HTMLFORMELEMENT_GetElementByNameCommon(JSContext *cx, JSObject *obj, DOMString elementName,jsval *rval)
{
	myJSFormPrivate *mFormPrivate=(myJSFormPrivate *)JS_GetPrivate(cx,obj);
	HTMLElementImpl *nImpl;
	nImpl=(HTMLElementImpl*)mFormPrivate->CurNode;
	NodeImpl* CurNode;
	CurNode=(HTMLElementImpl *)HTMLCollectionImpl_namedItem(nImpl,elementName,FORM_ELEMENTS);
	ElementImpl* eImpl=(ElementImpl*)(CurNode);
	if(!CurNode)return JS_FALSE;
	return HTML_NewObjectByElementCommon(cx,obj,JS_GetPrototype(cx,obj),0,eImpl,rval);
}
static JSBool HTMLFORMELEMENT_GetElementByIndexCommon(JSContext *cx, JSObject *obj, int index,jsval *rval)
{
	myJSFormPrivate *mFormPrivate=(myJSFormPrivate *)JS_GetPrivate(cx,obj);
	HTMLElementImpl *nImpl;
	nImpl=(HTMLElementImpl*)mFormPrivate->CurNode;
	NodeImpl* CurNode;
	CurNode=(HTMLElementImpl *)HTMLCollectionImpl_item(nImpl,index,FORM_ELEMENTS);
	ElementImpl* eImpl=(ElementImpl*)(CurNode);
	if(!CurNode)return JS_FALSE;
	return HTML_NewObjectByElementCommon(cx,obj,JS_GetPrototype(cx,obj),0,eImpl,rval);
}
bool HTMLFORMELEMENT_IsInternalMethod(char s[])
{
	return !strcmp(s,"submit")||!strcmp(s,"reset")
			||!strcmp(s,"namedItem")||!strcmp(s,"item");
}

#undef TEMPSTRINGMAX