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dom/base/nsDOMScriptObjectFactory.cpp@b8a032363ba2 (annotated)

dom/base/nsDOMScriptObjectFactory.cpp

Thu, 22 Jan 2015 13:21:57 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Thu, 22 Jan 2015 13:21:57 +0100

branch

TOR_BUG_9701

changeset 15

b8a032363ba2

permissions

-rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

michael@0	1	/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
michael@0	2	* vim: set ts=2 sw=2 et tw=78:
michael@0	3	*
michael@0	4	* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	5	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	6	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
michael@0	7	*
michael@0	8	*
michael@0	9	* This Original Code has been modified by IBM Corporation.
michael@0	10	* Modifications made by IBM described herein are
michael@0	11	* Copyright (c) International Business Machines
michael@0	12	* Corporation, 2000
michael@0	13	*
michael@0	14	* Modifications to Mozilla code or documentation
michael@0	15	* identified per MPL Section 3.3
michael@0	16	*
michael@0	17	* Date Modified by Description of modification
michael@0	18	* 03/27/2000 IBM Corp. Added PR_CALLBACK for Optlink
michael@0	19	* use in OS2
michael@0	20	*/
michael@0	21
michael@0	22	#include "nsDOMScriptObjectFactory.h"
michael@0	23	#include "nsScriptNameSpaceManager.h"
michael@0	24	#include "nsIObserverService.h"
michael@0	25	#include "nsJSEnvironment.h"
michael@0	26	#include "nsGlobalWindow.h"
michael@0	27	#include "nsCRT.h"
michael@0	28	#ifdef MOZ_XUL
michael@0	29	#include "nsXULPrototypeCache.h"
michael@0	30	#endif
michael@0	31	#include "nsThreadUtils.h"
michael@0	32
michael@0	33	using mozilla::dom::GetNameSpaceManager;
michael@0	34
michael@0	35	nsDOMScriptObjectFactory::nsDOMScriptObjectFactory()
michael@0	36	{
michael@0	37	nsCOMPtr<nsIObserverService> observerService =
michael@0	38	mozilla::services::GetObserverService();
michael@0	39	if (observerService) {
michael@0	40	observerService->AddObserver(this, NS_XPCOM_SHUTDOWN_OBSERVER_ID, false);
michael@0	41	}
michael@0	42
michael@0	43	}
michael@0	44
michael@0	45	NS_INTERFACE_MAP_BEGIN(nsDOMScriptObjectFactory)
michael@0	46	NS_INTERFACE_MAP_ENTRY(nsIDOMScriptObjectFactory)
michael@0	47	NS_INTERFACE_MAP_ENTRY(nsIObserver)
michael@0	48	NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMScriptObjectFactory)
michael@0	49	NS_INTERFACE_MAP_END
michael@0	50
michael@0	51
michael@0	52	NS_IMPL_ADDREF(nsDOMScriptObjectFactory)
michael@0	53	NS_IMPL_RELEASE(nsDOMScriptObjectFactory)
michael@0	54
michael@0	55	NS_IMETHODIMP_(nsISupports *)
michael@0	56	nsDOMScriptObjectFactory::GetClassInfoInstance(nsDOMClassInfoID aID)
michael@0	57	{
michael@0	58	return NS_GetDOMClassInfoInstance(aID);
michael@0	59	}
michael@0	60
michael@0	61	NS_IMETHODIMP_(nsISupports *)
michael@0	62	nsDOMScriptObjectFactory::GetExternalClassInfoInstance(const nsAString& aName)
michael@0	63	{
michael@0	64	nsScriptNameSpaceManager *nameSpaceManager = GetNameSpaceManager();
michael@0	65	NS_ENSURE_TRUE(nameSpaceManager, nullptr);
michael@0	66
michael@0	67	const nsGlobalNameStruct *globalStruct = nameSpaceManager->LookupName(aName);
michael@0	68	if (globalStruct) {
michael@0	69	if (globalStruct->mType == nsGlobalNameStruct::eTypeExternalClassInfoCreator) {
michael@0	70	nsresult rv;
michael@0	71	nsCOMPtr<nsIDOMCIExtension> creator(do_CreateInstance(globalStruct->mCID, &rv));
michael@0	72	NS_ENSURE_SUCCESS(rv, nullptr);
michael@0	73
michael@0	74	rv = creator->RegisterDOMCI(NS_ConvertUTF16toUTF8(aName).get(), this);
michael@0	75	NS_ENSURE_SUCCESS(rv, nullptr);
michael@0	76
michael@0	77	globalStruct = nameSpaceManager->LookupName(aName);
michael@0	78	NS_ENSURE_TRUE(globalStruct, nullptr);
michael@0	79
michael@0	80	NS_ASSERTION(globalStruct->mType == nsGlobalNameStruct::eTypeExternalClassInfo,
michael@0	81	"The classinfo data for this class didn't get registered.");
michael@0	82	}
michael@0	83	if (globalStruct->mType == nsGlobalNameStruct::eTypeExternalClassInfo) {
michael@0	84	return nsDOMClassInfo::GetClassInfoInstance(globalStruct->mData);
michael@0	85	}
michael@0	86	}
michael@0	87	return nullptr;
michael@0	88	}
michael@0	89
michael@0	90	NS_IMETHODIMP
michael@0	91	nsDOMScriptObjectFactory::Observe(nsISupports *aSubject,
michael@0	92	const char *aTopic,
michael@0	93	const char16_t *someData)
michael@0	94	{
michael@0	95	if (!nsCRT::strcmp(aTopic, NS_XPCOM_SHUTDOWN_OBSERVER_ID)) {
michael@0	96	#ifdef MOZ_XUL
michael@0	97	// Flush the XUL cache since it holds JS roots, and we're about to
michael@0	98	// start the final GC.
michael@0	99	nsXULPrototypeCache* cache = nsXULPrototypeCache::GetInstance();
michael@0	100
michael@0	101	if (cache)
michael@0	102	cache->Flush();
michael@0	103	#endif
michael@0	104	}
michael@0	105
michael@0	106	return NS_OK;
michael@0	107	}
michael@0	108
michael@0	109	NS_IMETHODIMP
michael@0	110	nsDOMScriptObjectFactory::RegisterDOMClassInfo(const char *aName,
michael@0	111	nsDOMClassInfoExternalConstructorFnc aConstructorFptr,
michael@0	112	const nsIID *aProtoChainInterface,
michael@0	113	const nsIID **aInterfaces,
michael@0	114	uint32_t aScriptableFlags,
michael@0	115	bool aHasClassInterface,
michael@0	116	const nsCID *aConstructorCID)
michael@0	117	{
michael@0	118	nsScriptNameSpaceManager *nameSpaceManager = GetNameSpaceManager();
michael@0	119	NS_ENSURE_TRUE(nameSpaceManager, NS_ERROR_NOT_INITIALIZED);
michael@0	120
michael@0	121	return nameSpaceManager->RegisterDOMCIData(aName,
michael@0	122	aConstructorFptr,
michael@0	123	aProtoChainInterface,
michael@0	124	aInterfaces,
michael@0	125	aScriptableFlags,
michael@0	126	aHasClassInterface,
michael@0	127	aConstructorCID);
michael@0	128	}