diff options
Diffstat (limited to 'src/libs/xpcom18a4/xpcom/tests/TestObserverService.cpp')
| -rw-r--r-- | src/libs/xpcom18a4/xpcom/tests/TestObserverService.cpp | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/xpcom/tests/TestObserverService.cpp b/src/libs/xpcom18a4/xpcom/tests/TestObserverService.cpp new file mode 100644 index 00000000..b0c9d4d5 --- /dev/null +++ b/src/libs/xpcom18a4/xpcom/tests/TestObserverService.cpp @@ -0,0 +1,184 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is mozilla.org code. + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Pierre Phaneuf <pp@ludusdesign.com> + * + * Alternatively, the contents of this file may be used under the terms of + * either of the GNU General Public License Version 2 or later (the "GPL"), + * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +#include "nsISupports.h" +#include "nsIComponentManager.h" +#include "nsIObserverService.h" +#include "nsIObserver.h" +#include "nsIEnumerator.h" +#include "nsString.h" +#include "nsReadableUtils.h" +#include "prprf.h" +#include "nsWeakReference.h" + +static nsIObserverService *anObserverService = NULL; + +static void testResult( nsresult rv ) { + if ( NS_SUCCEEDED( rv ) ) { + printf("...ok\n"); + } else { + printf("...failed, rv=0x%x\n", (int)rv); + } + return; +} + +void printString(nsString &str) { + const char *cstr = ToNewCString(str); + printf("%s", cstr); + delete [] (char*)cstr; +} + +class TestObserver : public nsIObserver, public nsSupportsWeakReference { +public: + TestObserver( const nsAString &name ) + : mName( name ) { + } + NS_DECL_ISUPPORTS + NS_DECL_NSIOBSERVER + + nsString mName; + +private: + ~TestObserver() {} +}; + +NS_IMPL_ISUPPORTS2( TestObserver, nsIObserver, nsISupportsWeakReference ) + +NS_IMETHODIMP +TestObserver::Observe( nsISupports *aSubject, + const char *aTopic, + const PRUnichar *someData ) { + nsCString topic( aTopic ); + nsString data( someData ); + /* + The annoying double-cast below is to work around an annoying bug in + the compiler currently used on wensleydale. This is a test. + */ + printString(mName); + printf(" has observed something: subject@%p", (void*)aSubject); + printf(" name="); + printString(NS_REINTERPRET_CAST(TestObserver*, NS_REINTERPRET_CAST(void*, aSubject))->mName); + printf(" aTopic=%s", topic.get()); + printf(" someData="); + printString(data); + printf("\n"); + return NS_OK; +} + +int main(int argc, char *argv[]) +{ + nsCString topicA; topicA.Assign( "topic-A" ); + nsCString topicB; topicB.Assign( "topic-B" ); + nsresult rv; + + nsresult res = nsComponentManager::CreateInstance("@mozilla.org/observer-service;1", + NULL, + NS_GET_IID(nsIObserverService), + (void **) &anObserverService); + + if (res == NS_OK) { + + nsIObserver *aObserver = new TestObserver(NS_LITERAL_STRING("Observer-A")); + aObserver->AddRef(); + nsIObserver *bObserver = new TestObserver(NS_LITERAL_STRING("Observer-B")); + bObserver->AddRef(); + + printf("Adding Observer-A as observer of topic-A...\n"); + rv = anObserverService->AddObserver(aObserver, topicA.get(), PR_FALSE); + testResult(rv); + + printf("Adding Observer-B as observer of topic-A...\n"); + rv = anObserverService->AddObserver(bObserver, topicA.get(), PR_FALSE); + testResult(rv); + + printf("Adding Observer-B as observer of topic-B...\n"); + rv = anObserverService->AddObserver(bObserver, topicB.get(), PR_FALSE); + testResult(rv); + + printf("Testing Notify(observer-A, topic-A)...\n"); + rv = anObserverService->NotifyObservers( aObserver, + topicA.get(), + NS_LITERAL_STRING("Testing Notify(observer-A, topic-A)").get() ); + testResult(rv); + + printf("Testing Notify(observer-B, topic-B)...\n"); + rv = anObserverService->NotifyObservers( bObserver, + topicB.get(), + NS_LITERAL_STRING("Testing Notify(observer-B, topic-B)").get() ); + testResult(rv); + + printf("Testing EnumerateObserverList (for topic-A)...\n"); + nsCOMPtr<nsISimpleEnumerator> e; + rv = anObserverService->EnumerateObservers(topicA.get(), getter_AddRefs(e)); + + testResult(rv); + + printf("Enumerating observers of topic-A...\n"); + if ( e ) { + nsCOMPtr<nsIObserver> observer; + PRBool loop = PR_TRUE; + while( NS_SUCCEEDED(e->HasMoreElements(&loop)) && loop) + { + e->GetNext(getter_AddRefs(observer)); + printf("Calling observe on enumerated observer "); + printString(NS_REINTERPRET_CAST(TestObserver*, + NS_REINTERPRET_CAST(void*, observer.get()))->mName); + printf("...\n"); + rv = observer->Observe( observer, + topicA.get(), + NS_LITERAL_STRING("during enumeration").get() ); + testResult(rv); + } + } + printf("...done enumerating observers of topic-A\n"); + + printf("Removing Observer-A...\n"); + rv = anObserverService->RemoveObserver(aObserver, topicA.get()); + testResult(rv); + + + printf("Removing Observer-B (topic-A)...\n"); + rv = anObserverService->RemoveObserver(bObserver, topicB.get()); + testResult(rv); + printf("Removing Observer-B (topic-B)...\n"); + rv = anObserverService->RemoveObserver(bObserver, topicA.get()); + testResult(rv); + + } + return NS_OK; +} |