Mozilla/mozilla/dom/src/nsJSWindow.cpp

310 lines
7.5 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#include "jsapi.h"
#include "nscore.h"
#include "nsIScriptContext.h"
#include "nsIJSScriptObject.h"
#include "nsIScriptObjectOwner.h"
#include "nsIScriptGlobalObject.h"
#include "nsIPtr.h"
#include "nsString.h"
#include "nsIDOMDocument.h"
#include "nsIDOMWindow.h"
static NS_DEFINE_IID(kIScriptObjectOwnerIID, NS_ISCRIPTOBJECTOWNER_IID);
static NS_DEFINE_IID(kIJSScriptObjectIID, NS_IJSSCRIPTOBJECT_IID);
static NS_DEFINE_IID(kIScriptGlobalObjectIID, NS_ISCRIPTGLOBALOBJECT_IID);
static NS_DEFINE_IID(kIDocumentIID, NS_IDOMDOCUMENT_IID);
static NS_DEFINE_IID(kIWindowIID, NS_IDOMWINDOW_IID);
NS_DEF_PTR(nsIDOMDocument);
NS_DEF_PTR(nsIDOMWindow);
//
// Window property ids
//
enum Window_slots {
WINDOW_DOCUMENT = -11
};
/***********************************************************************/
//
// Window Properties Getter
//
PR_STATIC_CALLBACK(JSBool)
GetWindowProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
{
nsIDOMWindow *a = (nsIDOMWindow*)JS_GetPrivate(cx, obj);
NS_ASSERTION(nsnull != a, "null pointer");
if (JSVAL_IS_INT(id)) {
switch(JSVAL_TO_INT(id)) {
case WINDOW_DOCUMENT:
{
nsIDOMDocument* prop;
if (NS_OK == a->GetDocument(&prop)) {
// get the js object
if (prop != nsnull) {
nsIScriptObjectOwner *owner = nsnull;
if (NS_OK == prop->QueryInterface(kIScriptObjectOwnerIID, (void**)&owner)) {
JSObject *object = nsnull;
nsIScriptContext *script_cx = (nsIScriptContext *)JS_GetContextPrivate(cx);
if (NS_OK == owner->GetScriptObject(script_cx, (void**)&object)) {
// set the return value
*vp = OBJECT_TO_JSVAL(object);
}
NS_RELEASE(owner);
}
NS_RELEASE(prop);
}
else {
*vp = JSVAL_NULL;
}
}
else {
return JS_FALSE;
}
break;
}
default:
{
nsIJSScriptObject *object;
if (NS_OK == a->QueryInterface(kIJSScriptObjectIID, (void**)&object)) {
PRBool rval;
rval = object->GetProperty(cx, id, vp);
NS_RELEASE(object);
return rval;
}
}
}
}
return PR_TRUE;
}
/***********************************************************************/
//
// Window Properties Setter
//
PR_STATIC_CALLBACK(JSBool)
SetWindowProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
{
nsIDOMWindow *a = (nsIDOMWindow*)JS_GetPrivate(cx, obj);
NS_ASSERTION(nsnull != a, "null pointer");
if (JSVAL_IS_INT(id)) {
switch(JSVAL_TO_INT(id)) {
case 0:
default:
{
nsIJSScriptObject *object;
if (NS_OK == a->QueryInterface(kIJSScriptObjectIID, (void**)&object)) {
PRBool rval;
rval = object->SetProperty(cx, id, vp);
NS_RELEASE(object);
return rval;
}
}
}
}
return PR_TRUE;
}
//
// Window finalizer
//
PR_STATIC_CALLBACK(void)
FinalizeWindow(JSContext *cx, JSObject *obj)
{
}
//
// Window enumerate
//
PR_STATIC_CALLBACK(JSBool)
EnumerateWindow(JSContext *cx, JSObject *obj)
{
nsIDOMWindow *a = (nsIDOMWindow*)JS_GetPrivate(cx, obj);
if (nsnull != a) {
// get the js object
nsIJSScriptObject *object;
if (NS_OK == a->QueryInterface(kIJSScriptObjectIID, (void**)&object)) {
object->EnumerateProperty(cx);
NS_RELEASE(object);
}
}
return JS_TRUE;
}
//
// Window resolve
//
PR_STATIC_CALLBACK(JSBool)
ResolveWindow(JSContext *cx, JSObject *obj, jsval id)
{
nsIDOMWindow *a = (nsIDOMWindow*)JS_GetPrivate(cx, obj);
if (nsnull != a) {
// get the js object
nsIJSScriptObject *object;
if (NS_OK == a->QueryInterface(kIJSScriptObjectIID, (void**)&object)) {
object->Resolve(cx, id);
NS_RELEASE(object);
}
}
return JS_TRUE;
}
//
// Native method Dump
//
PR_STATIC_CALLBACK(JSBool)
WindowDump(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
nsIDOMWindow *nativeThis = (nsIDOMWindow*)JS_GetPrivate(cx, obj);
NS_ASSERTION(nsnull != nativeThis, "null pointer");
JSBool rBool = JS_FALSE;
nsAutoString b0;
*rval = JSVAL_NULL;
if (argc >= 1) {
JSString *jsstring0 = JS_ValueToString(cx, argv[0]);
if (nsnull != jsstring0) {
b0.SetString(JS_GetStringChars(jsstring0));
}
else {
b0.SetString(""); // Should this really be null??
}
if (NS_OK != nativeThis->Dump(b0)) {
return JS_FALSE;
}
*rval = JSVAL_VOID;
}
else {
return JS_FALSE;
}
return JS_TRUE;
}
/***********************************************************************/
//
// class for Window
//
JSClass WindowClass = {
"Window",
JSCLASS_HAS_PRIVATE,
JS_PropertyStub,
JS_PropertyStub,
GetWindowProperty,
SetWindowProperty,
EnumerateWindow,
ResolveWindow,
JS_ConvertStub,
FinalizeWindow
};
//
// Window class properties
//
static JSPropertySpec WindowProperties[] =
{
{"document", WINDOW_DOCUMENT, JSPROP_ENUMERATE | JSPROP_READONLY},
{0}
};
//
// Window class methods
//
static JSFunctionSpec WindowMethods[] =
{
{"dump", WindowDump, 1},
{0}
};
//
// Window constructor
//
PR_STATIC_CALLBACK(JSBool)
Window(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
return JS_TRUE;
}
//
// Window class initialization
//
nsresult NS_InitWindowClass(nsIScriptContext *aContext,
nsIScriptGlobalObject *aGlobal)
{
JSContext *jscontext = (JSContext *)aContext->GetNativeContext();
JSObject *global = JS_GetGlobalObject(jscontext);
JS_DefineProperties(jscontext, global, WindowProperties);
JS_DefineFunctions(jscontext, global, WindowMethods);
return NS_OK;
}
//
// Method for creating a new Window JavaScript object
//
extern "C" NS_DOM NS_NewScriptWindow(nsIScriptContext *aContext, nsIDOMWindow *aSupports, nsISupports *aParent, void **aReturn)
{
NS_PRECONDITION(nsnull != aContext && nsnull != aSupports && nsnull != aReturn, "null arg");
JSContext *jscontext = (JSContext *)aContext->GetNativeContext();
JSObject *global = ::JS_NewObject(jscontext, &WindowClass, NULL, NULL);
if (global) {
// The global object has a to be defined in two step:
// 1- create a generic object, with no prototype and no parent which
// will be passed to JS_InitStandardClasses. JS_InitStandardClasses
// will make it the global object
// 2- define the global object to be what you really want it to be.
//
// The js runtime is not fully initialized before JS_InitStandardClasses
// is called, so part of the global object initialization has to be moved
// after JS_InitStandardClasses
// assign "this" to the js object, don't AddRef
::JS_SetPrivate(jscontext, global, aSupports);
*aReturn = (void*)global;
return NS_OK;
}
return NS_ERROR_FAILURE;
}