mgjs_event.cpp

monqueror一个很具有参考价值的源玛

#include "mgjs_main.h"
#include "mgjs_EventConst.h"
static JSBool GetEventProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp);
static JSBool SetEventProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp);
static JSBool EventStopPropagation(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval);
static JSBool EventPreventBubble(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval);
static JSBool EventPreventCapture(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval);
static JSBool EventPreventDefault(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval);
static JSBool EventInitEvent(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval);

enum Event_slots {
	EVENT_TYPE ,
	EVENT_TARGET ,
	EVENT_CURRENTTARGET ,
	EVENT_ORIGINALTARGET ,
	EVENT_EVENTPHASE ,
	EVENT_BUBBLES ,
	EVENT_CANCELABLE ,
	EVENT_TIMESTAMP 
};

static JSBool GetEventProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
{
	MGHTMLView *view = mgJSGetView(cx);
	DOMString dsReturn=(const char*)"";
	
	if (JSVAL_IS_INT(id)) {
		switch (JSVAL_TO_INT(id)) {
		case EVENT_TYPE :
			if(view->m_JsEventType>=1&&view->m_JsEventType<=128)
				dsReturn="button";
			else
			if(view->m_JsEventType>=256&&view->m_JsEventType<=2048)
				dsReturn="key";
			*vp=STRING_TO_JSVAL (JS_NewStringCopyZ (cx,dsReturn.string()));
			break;
		case EVENT_TARGET :
			break;
		case EVENT_CURRENTTARGET :
			break;
		case EVENT_ORIGINALTARGET :
			break;
		case EVENT_EVENTPHASE :
			break;
		case EVENT_BUBBLES :
			break;
		case EVENT_CANCELABLE :
			break;
		case EVENT_TIMESTAMP :
			break;
		}
	}
 	return JS_TRUE;
}

static JSBool SetEventProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
{
#if 0		
	if (JSVAL_IS_INT(id)) {
		switch (JSVAL_TO_INT(id)) {
#if 0
		//NB: readonly property
		case EVENT_TYPE :
			break;
		case EVENT_TARGET :
			break;
		case EVENT_CURRENTTARGET :
			break;
		case EVENT_ORIGINALTARGET :
			break;
		case EVENT_EVENTPHASE :
			break;
		case EVENT_BUBBLES :
			break;
		case EVENT_CANCELABLE :
			break;
		case EVENT_TIMESTAMP :
			break;
#endif			
		}
	}
#endif	
	return JS_TRUE;
}

//
// Native method StopPropagation
//
static JSBool EventStopPropagation(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
	//TODO:
	return JS_TRUE;
}
static JSBool EventPreventBubble(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
	//TODO:
	return JS_TRUE;
}
static JSBool EventPreventCapture(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
	//TODO:
	return JS_TRUE;
}
static JSBool EventPreventDefault(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
	//TODO:
	return JS_TRUE;
}
static JSBool EventInitEvent(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
	//TODO:
	return JS_TRUE;
}

//
// Event class properties
//
static JSPropertySpec EventProperties[] =
{
  {"type",    EVENT_TYPE,    JSPROP_ENUMERATE | JSPROP_READONLY},
  {"target",    EVENT_TARGET,    JSPROP_ENUMERATE | JSPROP_READONLY},
  {"currentTarget",    EVENT_CURRENTTARGET,    JSPROP_ENUMERATE | JSPROP_READONLY},
  {"originalTarget",    EVENT_ORIGINALTARGET,    JSPROP_ENUMERATE | JSPROP_READONLY},
  {"eventPhase",    EVENT_EVENTPHASE,    JSPROP_ENUMERATE | JSPROP_READONLY},
  {"bubbles",    EVENT_BUBBLES,    JSPROP_ENUMERATE | JSPROP_READONLY},
  {"cancelable",    EVENT_CANCELABLE,    JSPROP_ENUMERATE | JSPROP_READONLY},
  {"timeStamp",    EVENT_TIMESTAMP,    JSPROP_ENUMERATE | JSPROP_READONLY},
  {0}
};


//
// class for Event
//
JSClass EventClass = {
  "Event", 
  JSCLASS_HAS_PRIVATE ,
  JS_PropertyStub,
  JS_PropertyStub,
  GetEventProperty,
  SetEventProperty,
  JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, JS_FinalizeStub 
};


//
// Event class methods
//
static JSFunctionSpec EventMethods[] = 
{
  {"stopPropagation",          EventStopPropagation,     0},
  {"preventBubble",          EventPreventBubble,     0},
  {"preventCapture",          EventPreventCapture,     0},
  {"preventDefault",          EventPreventDefault,     0},
  {"initEvent",          EventInitEvent,     3},
  {0}
};

JSObject* InitEventClass(JSContext *cx,JSObject *globalObj,JSObject *proto)
{
	JSObject *obj;
	obj = JS_DefineObject (cx,globalObj, "Event", &EventClass,proto,JSPROP_ENUMERATE);
    JS_DefineProperties (cx,obj,EventProperties);
    JS_DefineFunctions (cx,obj,EventMethods);
	
	jsval vp;

	vp = INT_TO_JSVAL(mgjsDOMEvent::CAPTURING_PHASE);
	JS_SetProperty(cx, obj, "CAPTURING_PHASE", &vp);

	vp = INT_TO_JSVAL(mgjsDOMEvent::AT_TARGET);
    JS_SetProperty(cx, obj, "AT_TARGET", &vp);

    vp = INT_TO_JSVAL(mgjsDOMEvent::BUBBLING_PHASE);
    JS_SetProperty(cx, obj, "BUBBLING_PHASE", &vp);

    vp = INT_TO_JSVAL(mgjsDOMEvent::MOUSEDOWN);
    JS_SetProperty(cx, obj, "MOUSEDOWN", &vp);

    vp = INT_TO_JSVAL(mgjsDOMEvent::MOUSEUP);
    JS_SetProperty(cx, obj, "MOUSEUP", &vp);

    vp = INT_TO_JSVAL(mgjsDOMEvent::MOUSEOVER);
    JS_SetProperty(cx, obj, "MOUSEOVER", &vp);

    vp = INT_TO_JSVAL(mgjsDOMEvent::MOUSEOUT);
    JS_SetProperty(cx, obj, "MOUSEOUT", &vp);

    vp = INT_TO_JSVAL(mgjsDOMEvent::MOUSEMOVE);
    JS_SetProperty(cx, obj, "MOUSEMOVE", &vp);

    vp = INT_TO_JSVAL(mgjsDOMEvent::MOUSEDRAG);
    JS_SetProperty(cx, obj, "MOUSEDRAG", &vp);

    vp = INT_TO_JSVAL(mgjsDOMEvent::CLICK);
    JS_SetProperty(cx, obj, "CLICK", &vp);

    vp = INT_TO_JSVAL(mgjsDOMEvent::DBLCLICK);
    JS_SetProperty(cx, obj, "DBLCLICK", &vp);

    vp = INT_TO_JSVAL(mgjsDOMEvent::KEYDOWN);
    JS_SetProperty(cx, obj, "KEYDOWN", &vp);

    vp = INT_TO_JSVAL(mgjsDOMEvent::KEYUP);
    JS_SetProperty(cx, obj, "KEYUP", &vp);

    vp = INT_TO_JSVAL(mgjsDOMEvent::KEYPRESS);
    JS_SetProperty(cx, obj, "KEYPRESS", &vp);

    vp = INT_TO_JSVAL(mgjsDOMEvent::DRAGDROP);
    JS_SetProperty(cx, obj, "DRAGDROP", &vp);

    vp = INT_TO_JSVAL(mgjsDOMEvent::FOCUS);
    JS_SetProperty(cx, obj, "FOCUS", &vp);

    vp = INT_TO_JSVAL(mgjsDOMEvent::BLUR);
    JS_SetProperty(cx, obj, "BLUR", &vp);

    vp = INT_TO_JSVAL(mgjsDOMEvent::SELECT);
    JS_SetProperty(cx, obj, "SELECT", &vp);

    vp = INT_TO_JSVAL(mgjsDOMEvent::CHANGE);
    JS_SetProperty(cx, obj, "CHANGE", &vp);

	vp = INT_TO_JSVAL(mgjsDOMEvent::RESET);
	JS_SetProperty(cx, obj, "RESET", &vp);

	vp = INT_TO_JSVAL(mgjsDOMEvent::SUBMIT);
    JS_SetProperty(cx, obj, "SUBMIT", &vp);

    vp = INT_TO_JSVAL(mgjsDOMEvent::SCROLL);
    JS_SetProperty(cx, obj, "SCROLL", &vp);

    vp = INT_TO_JSVAL(mgjsDOMEvent::LOAD);
    JS_SetProperty(cx, obj, "LOAD", &vp);

    vp = INT_TO_JSVAL(mgjsDOMEvent::UNLOAD);
    JS_SetProperty(cx, obj, "UNLOAD", &vp);

    vp = INT_TO_JSVAL(mgjsDOMEvent::XFER_DONE);
    JS_SetProperty(cx, obj, "XFER_DONE", &vp);

    vp = INT_TO_JSVAL(mgjsDOMEvent::ABORT);
    JS_SetProperty(cx, obj, "ABORT", &vp);

    vp = INT_TO_JSVAL(mgjsDOMEvent::ERROR);
    JS_SetProperty(cx, obj, "ERROR", &vp);

    vp = INT_TO_JSVAL(mgjsDOMEvent::LOCATE);
    JS_SetProperty(cx, obj, "LOCATE", &vp);

    vp = INT_TO_JSVAL(mgjsDOMEvent::MOVE);
    JS_SetProperty(cx, obj, "MOVE", &vp);

    vp = INT_TO_JSVAL(mgjsDOMEvent::RESIZE);
    JS_SetProperty(cx, obj, "RESIZE", &vp);

    vp = INT_TO_JSVAL(mgjsDOMEvent::FORWARD);
    JS_SetProperty(cx, obj, "FORWARD", &vp);

    vp = INT_TO_JSVAL(mgjsDOMEvent::HELP);
    JS_SetProperty(cx, obj, "HELP", &vp);

	vp = INT_TO_JSVAL(mgjsDOMEvent::BACK);
	JS_SetProperty(cx, obj, "BACK", &vp);

	vp = INT_TO_JSVAL(mgjsDOMEvent::TEXT);
	JS_SetProperty(cx, obj, "TEXT", &vp);

	vp = INT_TO_JSVAL(mgjsDOMEvent::ALT_MASK);
	JS_SetProperty(cx, obj, "ALT_MASK", &vp);

	vp = INT_TO_JSVAL(mgjsDOMEvent::CONTROL_MASK);
	JS_SetProperty(cx, obj, "CONTROL_MASK", &vp);

	vp = INT_TO_JSVAL(mgjsDOMEvent::SHIFT_MASK);
	JS_SetProperty(cx, obj, "SHIFT_MASK", &vp);

	vp = INT_TO_JSVAL(mgjsDOMEvent::META_MASK);
	JS_SetProperty(cx, obj, "META_MASK", &vp);

	return obj;
}

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