зеркало из https://github.com/mozilla/gecko-dev.git
431 строка
13 KiB
C++
431 строка
13 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is Mozilla Communicator client code.
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*
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* The Initial Developer of the Original Code is Netscape Communications
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* Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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* Pierre Phaneuf <pp@ludusdesign.com>
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*/
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#include "nspr.h"
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#include "nsString.h"
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#include "nsCOMPtr.h"
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#include "nsContentModule.h"
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#include "nsContentCID.h"
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#include "nsContentUtils.h"
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#include "nsIComponentManager.h"
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#include "nsNetUtil.h"
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#include "nsICSSStyleSheet.h"
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#include "nsICSSLoader.h"
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#include "nsHTMLAtoms.h"
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#include "nsCSSKeywords.h" // to addref/release table
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#include "nsCSSProps.h" // to addref/release table
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#include "nsCSSAtoms.h" // to addref/release table
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#include "nsColorNames.h" // to addref/release table
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#include "nsLayoutAtoms.h"
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#include "nsDOMCID.h"
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#include "nsINameSpaceManager.h"
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#include "nsICategoryManager.h"
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#include "nsIScriptNameSpaceManager.h"
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#include "nsIObserver.h"
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#include "nsINodeInfo.h"
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#include "nsIElementFactory.h"
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#include "nsIDocumentEncoder.h"
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#include "nsIContentSerializer.h"
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#include "nsIHTMLToTextSink.h"
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// XXX
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#include "nsIServiceManager.h"
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#include "nsRange.h"
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#include "nsGenericElement.h"
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#include "nsContentHTTPStartup.h"
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#include "nsContentPolicyUtils.h"
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#define PRODUCT_NAME "Gecko"
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#define NS_HTMLIMGELEMENT_CONTRACTID \
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"@mozilla.org/content/element/html;1?name=img"
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#define NS_HTMLOPTIONELEMENT_CONTRACTID \
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"@mozilla.org/content/element/html;1?name=option"
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#ifdef MOZ_XUL
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#include "nsXULAtoms.h"
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#include "nsXULContentUtils.h"
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#endif
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static nsContentModule *gModule = NULL;
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extern "C" NS_EXPORT nsresult NSGetModule(nsIComponentManager *servMgr,
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nsIFile* location,
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nsIModule** return_cobj)
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{
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nsresult rv = NS_OK;
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NS_ASSERTION(return_cobj, "Null argument");
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NS_ASSERTION(gModule == NULL, "nsContentModule: Module already created.");
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// Create an initialize the Content module instance
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nsContentModule *m = new nsContentModule();
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if (!m) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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// Increase refcnt and store away nsIModule interface to m in return_cobj
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rv = m->QueryInterface(NS_GET_IID(nsIModule), (void**)return_cobj);
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if (NS_FAILED(rv)) {
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delete m;
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m = nsnull;
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}
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gModule = m; // WARNING: Weak Reference
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return rv;
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}
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//----------------------------------------------------------------------
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nsICSSStyleSheet* nsContentModule::gUAStyleSheet = nsnull;
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nsContentModule::nsContentModule()
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: mInitialized(PR_FALSE)
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{
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NS_INIT_ISUPPORTS();
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nsCOMPtr<nsIObserverService> observerService =
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do_GetService(NS_OBSERVERSERVICE_CONTRACTID);
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if (observerService) {
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nsAutoString topic;
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topic.AssignWithConversion(NS_XPCOM_SHUTDOWN_OBSERVER_ID);
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observerService->AddObserver(this, topic.GetUnicode());
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}
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}
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nsContentModule::~nsContentModule()
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{
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Shutdown();
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}
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NS_IMPL_ISUPPORTS2(nsContentModule, nsIModule, nsIObserver)
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// Perform our one-time intialization for this module
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nsresult
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nsContentModule::Initialize()
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{
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nsresult rv = NS_OK;
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if (mInitialized) {
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return NS_OK;
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}
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mInitialized = PR_TRUE;
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// Register all of our atoms once
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nsCSSAtoms::AddRefAtoms();
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nsCSSKeywords::AddRefTable();
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nsCSSProps::AddRefTable();
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nsColorNames::AddRefTable();
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nsHTMLAtoms::AddRefAtoms();
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nsLayoutAtoms::AddRefAtoms();
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#ifdef MOZ_XUL
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nsXULAtoms::AddRefAtoms();
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nsXULContentUtils::Init();
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#endif
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nsContentUtils::Init();
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return rv;
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}
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// Shutdown this module, releasing all of the module resources
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void
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nsContentModule::Shutdown()
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{
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if (!mInitialized) {
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return;
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}
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nsRange::Shutdown();
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nsGenericElement::Shutdown();
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// Release all of our atoms
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nsColorNames::ReleaseTable();
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nsCSSProps::ReleaseTable();
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nsCSSKeywords::ReleaseTable();
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nsCSSAtoms::ReleaseAtoms();
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nsHTMLAtoms::ReleaseAtoms();
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nsLayoutAtoms::ReleaseAtoms();
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#ifdef MOZ_XUL
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nsXULContentUtils::Finish();
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nsXULAtoms::ReleaseAtoms();
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#endif
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NS_IF_RELEASE(gUAStyleSheet);
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nsContentUtils::Shutdown();
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}
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NS_IMETHODIMP
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nsContentModule::Observe(nsISupports *aSubject, const PRUnichar *aTopic,
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const PRUnichar *someData)
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{
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nsAutoString topic;
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topic.AssignWithConversion(NS_XPCOM_SHUTDOWN_OBSERVER_ID);
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if (topic.EqualsWithConversion(aTopic)) {
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nsContentUtils::Shutdown();
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsContentModule::GetClassObject(nsIComponentManager *aCompMgr,
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const nsCID& aClass,
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const nsIID& aIID,
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void** r_classObj)
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{
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nsresult rv;
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if (!mInitialized) {
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rv = Initialize();
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if (NS_FAILED(rv)) {
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return rv;
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}
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}
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nsCOMPtr<nsIFactory> f = new nsContentFactory(aClass);
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if (!f) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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return f->QueryInterface(aIID, r_classObj);
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}
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//----------------------------------------
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struct Components {
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const char* mDescription;
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nsID mCID;
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const char* mContractID;
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};
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// The HTML namespace.
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// The list of components we register
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static Components gComponents[] = {
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{ "Namespace manager", NS_NAMESPACEMANAGER_CID, nsnull, },
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{ "Event listener manager", NS_EVENTLISTENERMANAGER_CID, nsnull, },
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{ "Event state manager", NS_EVENTSTATEMANAGER_CID, nsnull, },
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{ "Document Viewer", NS_DOCUMENT_VIEWER_CID, nsnull, },
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{ "HTML Style Sheet", NS_HTMLSTYLESHEET_CID, nsnull, },
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{ "Style Set", NS_STYLESET_CID, nsnull, },
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{ "Frame Selection", NS_FRAMESELECTION_CID, nsnull, },
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{ "CSS Style Sheet", NS_CSS_STYLESHEET_CID, nsnull, },
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{ "HTML document", NS_HTMLDOCUMENT_CID, nsnull, },
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{ "HTML-CSS style sheet", NS_HTML_CSS_STYLESHEET_CID, nsnull, },
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{ "DOM implementation", NS_DOM_IMPLEMENTATION_CID, nsnull, },
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{ "XML document", NS_XMLDOCUMENT_CID, nsnull, },
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{ "Image document", NS_IMAGEDOCUMENT_CID, nsnull, },
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{ "CSS parser", NS_CSSPARSER_CID, nsnull, },
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{ "CSS loader", NS_CSS_LOADER_CID, nsnull, },
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{ "HTML element factory", NS_HTML_ELEMENT_FACTORY_CID, NS_HTML_ELEMENT_FACTORY_CONTRACTID, },
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{ "Text element", NS_TEXTNODE_CID, nsnull, },
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{ "Anonymous Content", NS_ANONYMOUSCONTENT_CID, nsnull, },
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{ "Attribute Content", NS_ATTRIBUTECONTENT_CID, nsnull, },
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{ "HTML Attributes", NS_HTMLATTRIBUTES_CID, nsnull, },
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{ "XML element factory", NS_XML_ELEMENT_FACTORY_CID, NS_XML_ELEMENT_FACTORY_CONTRACTID, },
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{ "Selection", NS_SELECTION_CID, nsnull, },
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{ "Dom selection", NS_DOMSELECTION_CID, nsnull, },
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{ "Frame selection", NS_FRAMESELECTION_CID, nsnull, },
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{ "Range", NS_RANGE_CID, nsnull, },
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{ "Range Utils", NS_RANGEUTILS_CID, nsnull, },
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{ "Content iterator", NS_CONTENTITERATOR_CID, nsnull, },
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{ "Generated Content iterator", NS_GENERATEDCONTENTITERATOR_CID, nsnull, },
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{ "Generated Subtree iterator", NS_GENERATEDSUBTREEITERATOR_CID, nsnull, },
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{ "Subtree iterator", NS_SUBTREEITERATOR_CID, nsnull, },
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// Needed to support "new Option;" and "new Image;" in JavaScript
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{ "HTML img element", NS_HTMLIMAGEELEMENT_CID,
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NS_HTMLIMGELEMENT_CONTRACTID, },
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{ "HTML option element", NS_HTMLOPTIONELEMENT_CID,
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NS_HTMLOPTIONELEMENT_CONTRACTID, },
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{ "XML document encoder", NS_TEXT_ENCODER_CID,
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NS_DOC_ENCODER_CONTRACTID_BASE "text/xml", },
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{ "XML document encoder", NS_TEXT_ENCODER_CID,
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NS_DOC_ENCODER_CONTRACTID_BASE "application/xml", },
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{ "XML document encoder", NS_TEXT_ENCODER_CID,
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NS_DOC_ENCODER_CONTRACTID_BASE "application/xhtml+xml", },
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{ "HTML document encoder", NS_TEXT_ENCODER_CID,
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NS_DOC_ENCODER_CONTRACTID_BASE "text/html", },
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{ "Plaintext document encoder", NS_TEXT_ENCODER_CID,
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NS_DOC_ENCODER_CONTRACTID_BASE "text/plain", },
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{ "HTML copy encoder", NS_HTMLCOPY_TEXT_ENCODER_CID,
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NS_HTMLCOPY_ENCODER_CONTRACTID, },
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{ "XML content serializer", NS_XMLCONTENTSERIALIZER_CID,
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NS_CONTENTSERIALIZER_CONTRACTID_PREFIX "text/xml", },
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{ "XML content serializer", NS_XMLCONTENTSERIALIZER_CID,
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NS_CONTENTSERIALIZER_CONTRACTID_PREFIX "application/xml", },
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{ "XML content serializer", NS_XMLCONTENTSERIALIZER_CID,
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NS_CONTENTSERIALIZER_CONTRACTID_PREFIX "application/xhtml+xml", },
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{ "HTML content serializer", NS_HTMLCONTENTSERIALIZER_CID,
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NS_CONTENTSERIALIZER_CONTRACTID_PREFIX "text/html", },
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{ "XUL content serializer", NS_XMLCONTENTSERIALIZER_CID,
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NS_CONTENTSERIALIZER_CONTRACTID_PREFIX "application/vnd.mozilla.xul+xml", },
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{ "plaintext content serializer", NS_PLAINTEXTSERIALIZER_CID,
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NS_CONTENTSERIALIZER_CONTRACTID_PREFIX "text/plain", },
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{ "plaintext sink", NS_PLAINTEXTSERIALIZER_CID,
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NS_PLAINTEXTSINK_CONTRACTID, },
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{ "XBL Service", NS_XBLSERVICE_CID, "@mozilla.org/xbl;1" },
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{ "XBL Binding Manager", NS_BINDINGMANAGER_CID, "@mozilla.org/xbl/binding-manager;1" },
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{ "Content policy service", NS_CONTENTPOLICY_CID, NS_CONTENTPOLICY_CONTRACTID },
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{ "NodeInfoManager", NS_NODEINFOMANAGER_CID, NS_NODEINFOMANAGER_CONTRACTID },
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{ "DOM CSS Computed Style Declaration", NS_COMPUTEDDOMSTYLE_CID,
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"@mozilla.org/DOM/Level2/CSS/computedStyleDeclaration;1" },
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#ifdef MOZ_XUL
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{ "XUL Sort Service", NS_XULSORTSERVICE_CID,
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"@mozilla.org/xul/xul-sort-service;1", },
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{ "XUL Template Builder", NS_XULTEMPLATEBUILDER_CID,
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"@mozilla.org/xul/xul-template-builder;1", },
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{ "XUL Outliner Builder", NS_XULOUTLINERBUILDER_CID,
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"@mozilla.org/xul/xul-outliner-builder;1", },
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{ "XUL Content Sink", NS_XULCONTENTSINK_CID,
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"@mozilla.org/xul/xul-content-sink;1", },
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{ "XUL Document", NS_XULDOCUMENT_CID,
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"@mozilla.org/xul/xul-document;1", },
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{ "XUL PopupListener", NS_XULPOPUPLISTENER_CID,
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"@mozilla.org/xul/xul-popup-listener;1", },
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{ "XUL Controllers", NS_XULCONTROLLERS_CID,
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"@mozilla.org/xul/xul-controllers;1", },
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{ "XUL Prototype Cache", NS_XULPROTOTYPECACHE_CID,
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"@mozilla.org/xul/xul-prototype-cache;1", },
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{ "XUL Element Factory", NS_XULELEMENTFACTORY_CID,
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NS_ELEMENT_FACTORY_CONTRACTID_PREFIX "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul", },
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#endif
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{ "Controller Command Manager", NS_CONTROLLERCOMMANDMANAGER_CID,
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"@mozilla.org/content/controller-command-manager;1", },
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{ "Content HTTP Startup Listener", NS_CONTENTHTTPSTARTUP_CID,
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NS_CONTENTHTTPSTARTUP_CONTRACTID, },
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};
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#define NUM_COMPONENTS (sizeof(gComponents) / sizeof(gComponents[0]))
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NS_IMETHODIMP
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nsContentModule::RegisterSelf(nsIComponentManager *aCompMgr,
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nsIFile* aPath,
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const char* registryLocation,
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const char* componentType)
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{
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nsresult rv = NS_OK;
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#ifdef DEBUG
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printf("*** Registering content components\n");
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#endif
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Components* cp = gComponents;
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Components* end = cp + NUM_COMPONENTS;
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while (cp < end) {
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rv = aCompMgr->RegisterComponentSpec(cp->mCID, cp->mDescription,
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cp->mContractID, aPath, PR_TRUE, PR_TRUE);
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if (NS_FAILED(rv)) {
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#ifdef DEBUG
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printf("nsContentModule: unable to register %s component => %x\n",
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cp->mDescription, rv);
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#endif
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break;
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}
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cp++;
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}
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// not fatal if these fail
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nsContentHTTPStartup::RegisterHTTPStartup();
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rv = RegisterDocumentFactories(aCompMgr, aPath);
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NS_ENSURE_SUCCESS(rv, rv);
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nsCOMPtr<nsICategoryManager> catman =
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do_GetService(NS_CATEGORYMANAGER_CONTRACTID, &rv);
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NS_ENSURE_SUCCESS(rv, rv);
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nsXPIDLCString previous;
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rv = catman->AddCategoryEntry(JAVASCRIPT_GLOBAL_CONSTRUCTOR_CATEGORY,
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"Image", NS_HTMLIMGELEMENT_CONTRACTID,
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PR_TRUE, PR_TRUE, getter_Copies(previous));
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NS_ENSURE_SUCCESS(rv, rv);
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rv = catman->AddCategoryEntry(JAVASCRIPT_GLOBAL_CONSTRUCTOR_CATEGORY,
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"Option", NS_HTMLOPTIONELEMENT_CONTRACTID,
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PR_TRUE, PR_TRUE, getter_Copies(previous));
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return rv;
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}
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NS_IMETHODIMP
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nsContentModule::UnregisterSelf(nsIComponentManager* aCompMgr,
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nsIFile* aPath,
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const char* registryLocation)
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{
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#ifdef DEBUG
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printf("*** Unregistering content components\n");
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#endif
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Components* cp = gComponents;
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Components* end = cp + NUM_COMPONENTS;
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while (cp < end) {
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nsresult rv = aCompMgr->UnregisterComponentSpec(cp->mCID, aPath);
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if (NS_FAILED(rv)) {
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#ifdef DEBUG
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printf("nsContentModule: unable to unregister %s component => %x\n",
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cp->mDescription, rv);
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#endif
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}
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cp++;
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}
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nsContentHTTPStartup::UnregisterHTTPStartup();
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UnregisterDocumentFactories(aCompMgr, aPath);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsContentModule::CanUnload(nsIComponentManager *aCompMgr, PRBool *okToUnload)
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{
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if (!okToUnload) {
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return NS_ERROR_INVALID_POINTER;
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}
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*okToUnload = PR_FALSE;
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return NS_ERROR_FAILURE;
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}
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