mgjs_uievent.cpp

monqueror一个很具有参考价值的源玛

//NB: events comes out since DOM Level 2 speciafication.

#include "mgjs_main.h"

static JSBool GetUIEventProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp);
static JSBool SetUIEventProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp);
static JSBool UIEventInitUIEvent(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval);
static JSBool NSUIEventGetPreventDefault(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval);

//
// UIEvent property ids
//
enum UIEvent_slots {
	UIEVENT_VIEW ,
	UIEVENT_DETAIL ,
	NSUIEVENT_LAYERX ,
	NSUIEVENT_LAYERY ,
	NSUIEVENT_PAGEX ,
	NSUIEVENT_PAGEY ,
	NSUIEVENT_WHICH ,
	NSUIEVENT_RANGEPARENT ,
	NSUIEVENT_RANGEOFFSET ,
	NSUIEVENT_CANCELBUBBLE ,
	NSUIEVENT_ISCHAR 
};

static JSBool GetUIEventProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
{
	MGHTMLView *view = mgJSGetView(cx);
	if (JSVAL_IS_INT(id)) {
		switch (JSVAL_TO_INT(id)) {
		case UIEVENT_VIEW :
			//TODO:
			break;
		case UIEVENT_DETAIL :
			//TODO:
			break;
		case NSUIEVENT_LAYERX :
			//TODO:
            *vp = INT_TO_JSVAL(0);
			break;
		case NSUIEVENT_LAYERY :
			//TODO:
            *vp = INT_TO_JSVAL(0);
			break;
		case NSUIEVENT_PAGEX :
            *vp = INT_TO_JSVAL(view->m_JsEventPageX);
			break;
		case NSUIEVENT_PAGEY :
            *vp = INT_TO_JSVAL(view->m_JsEventPageY);
			break;
		case NSUIEVENT_WHICH :
            *vp = INT_TO_JSVAL(view->m_JsKeyEventValue);
			break;
		case NSUIEVENT_RANGEPARENT :
			//TODO:
			break;
		case NSUIEVENT_RANGEOFFSET :
			//TODO:
			break;
		case NSUIEVENT_CANCELBUBBLE :
			//TODO:
			break;
		case NSUIEVENT_ISCHAR :
			//TODO:
			break;
		}
	}
 	return JS_TRUE;
}

static JSBool SetUIEventProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
{
	if (JSVAL_IS_INT(id)) {
		switch (JSVAL_TO_INT(id)) {
#if 0
		//NB: readonly property
		case UIEVENT_VIEW :
			break;
		case UIEVENT_DETAIL :
			break;
		case NSUIEVENT_LAYERX :
			break;
		case NSUIEVENT_LAYERY :
			break;
		case NSUIEVENT_PAGEX :
			break;
		case NSUIEVENT_PAGEY :
			break;
		case NSUIEVENT_WHICH :
			break;
		case NSUIEVENT_RANGEPARENT :
			break;
		case NSUIEVENT_RANGEOFFSET :
			break;
		case NSUIEVENT_ISCHAR :
			break;
#endif
		case NSUIEVENT_CANCELBUBBLE :
			//TODO:
			break;
		}
	}
	return JS_TRUE;
}

//
// Native method initUIEvent
//
static JSBool UIEventInitUIEvent(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
	return JS_TRUE;
}
static JSBool NSUIEventGetPreventDefault(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
	return JS_TRUE;
}

//
// UIEvent class properties
//
static JSPropertySpec UIEventProperties[] =
{
  {"view",    UIEVENT_VIEW,    JSPROP_ENUMERATE | JSPROP_READONLY},
  {"detail",    UIEVENT_DETAIL,    JSPROP_ENUMERATE | JSPROP_READONLY},
  {"layerX",    NSUIEVENT_LAYERX,    JSPROP_ENUMERATE | JSPROP_READONLY},
  {"layerY",    NSUIEVENT_LAYERY,    JSPROP_ENUMERATE | JSPROP_READONLY},
  {"pageX",    NSUIEVENT_PAGEX,    JSPROP_ENUMERATE | JSPROP_READONLY},
  {"pageY",    NSUIEVENT_PAGEY,    JSPROP_ENUMERATE | JSPROP_READONLY},
  {"which",    NSUIEVENT_WHICH,    JSPROP_ENUMERATE | JSPROP_READONLY},
  {"rangeParent",    NSUIEVENT_RANGEPARENT,    JSPROP_ENUMERATE | JSPROP_READONLY},
  {"rangeOffset",    NSUIEVENT_RANGEOFFSET,    JSPROP_ENUMERATE | JSPROP_READONLY},
  {"cancelBubble",    NSUIEVENT_CANCELBUBBLE,    JSPROP_ENUMERATE},
  {"isChar",    NSUIEVENT_ISCHAR,    JSPROP_ENUMERATE | JSPROP_READONLY},
  {0}
};

//
// class for UIEvent
//
JSClass UIEventClass = {
  "UIEvent", 
  JSCLASS_HAS_PRIVATE ,
  JS_PropertyStub,
  JS_PropertyStub,
  GetUIEventProperty,
  SetUIEventProperty,
  JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, JS_FinalizeStub 
};


//
// UIEvent class methods
//
static JSFunctionSpec UIEventMethods[] = 
{
  {"initUIEvent",          UIEventInitUIEvent,     5},
  {"getPreventDefault",          NSUIEventGetPreventDefault,     0},
  {0}
};


JSObject* InitUIEventClass(JSContext *cx,JSObject *globalObj,JSObject *proto)
{
	JSObject *obj;
	obj = JS_DefineObject (cx,globalObj, "UIEvent", &UIEventClass,proto,JSPROP_ENUMERATE);
    JS_DefineProperties (cx,obj,UIEventProperties);
    JS_DefineFunctions (cx,obj,UIEventMethods);
	return obj;
}

JSObject* NewScriptUIEvent(JSContext *cx,JSObject *proto,JSObject *parent,ElementImpl *eImpl)
{
	JSObject *obj;
	JSObject *global = JS_GetGlobalObject(cx);
	jsval vp;
	if ((JS_TRUE == JS_LookupProperty(cx, global, "UIEvent", &vp) && JSVAL_IS_OBJECT(vp)))
		obj=JS_NewObject(cx,&UIEventClass,JSVAL_TO_OBJECT(vp),NULL);
	else
		obj=InitUIEventClass(cx,JS_GetParent(cx,proto),proto);
	return obj;
}