зеркало из https://github.com/mozilla/gecko-dev.git
131 строка
3.6 KiB
C++
131 строка
3.6 KiB
C++
/*
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The contents of this file are subject to the Mozilla 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/MPL/
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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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The Original Code is mozilla.org code.
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The Initial Developer of the Original Code is Sun Microsystems,
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Inc. Portions created by Sun are
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Copyright (C) 1999 Sun Microsystems, Inc. All
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Rights Reserved.
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Contributor(s):
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*/
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#include<stdio.h>
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#include"prlog.h"
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#include"nativeDOMProxyListener.h"
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#include"nsIDOMNode.h"
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#include"nsIDOMEventTarget.h"
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#include"nsIDOMEventListener.h"
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#include"javaDOMEventsGlobals.h"
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static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
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static NS_DEFINE_IID(kIDOMEventListener, NS_IDOMEVENTLISTENER_IID);
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NativeDOMProxyListener::NativeDOMProxyListener(JNIEnv *env, jobject jlistener)
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{
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mRefCnt = 0;
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listener = env->NewGlobalRef(jlistener);
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if (env->GetJavaVM(&vm) != 0)
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PR_LOG(JavaDOMGlobals::log, PR_LOG_WARNING,
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("NativeDOMProxyListener: Can't objant jvm\n"));
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}
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//should be called oly from NativeDOMProxyListener::Release
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NativeDOMProxyListener::~NativeDOMProxyListener()
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{
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JNIEnv *env;
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if (vm->AttachCurrentThread( &env, NULL) != 0)
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PR_LOG(JavaDOMGlobals::log, PR_LOG_WARNING,
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("NativeDOMProxyListener: Can't attach current thread to JVM\n"));
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env->DeleteGlobalRef(listener);
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if (env->ExceptionOccurred()) {
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PR_LOG(JavaDOMGlobals::log, PR_LOG_ERROR,
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("NativeDOMProxyListener::Destroy: failed to delete EventListener global ref %x\n",
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listener));
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return;
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}
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}
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nsresult NativeDOMProxyListener::HandleEvent(nsIDOMEvent* aEvent)
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{
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jobject jevent;
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JNIEnv *env;
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if (vm->AttachCurrentThread( &env, NULL) != 0) {
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PR_LOG(JavaDOMGlobals::log, PR_LOG_WARNING,
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("NativeDOMProxyListener:HandleEvent Can't attach current thread to JVM\n"));
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return NS_ERROR_FAILURE;
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}
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jevent = JavaDOMEventsGlobals::CreateEventSubtype(env, aEvent);
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if (!jevent) {
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PR_LOG(JavaDOMGlobals::log, PR_LOG_WARNING,
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("NativeDOMProxyListener::HandleEvent Can't create java event object"));
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return NS_ERROR_FAILURE;
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}
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env->CallVoidMethod(listener,
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JavaDOMEventsGlobals::eventListenerHandleEventMID,
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jevent);
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if (env->ExceptionOccurred()) {
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PR_LOG(JavaDOMGlobals::log, PR_LOG_ERROR,
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("NativeDOMProxyListener::HandleEvent: failed to call EventListener %x\n",
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listener));
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return NS_ERROR_FAILURE;
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}
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return NS_OK;
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}
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nsresult NativeDOMProxyListener::QueryInterface(const nsIID &aIID, void **aResult)
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{
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if (aResult == NULL) {
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return NS_ERROR_NULL_POINTER;
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}
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// Always NULL result, in case of failure
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*aResult = NULL;
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if (aIID.Equals(kISupportsIID)) {
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*aResult = (void *) this;
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} else if (aIID.Equals(kIDOMEventListener)) {
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*aResult = (void *) this;
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}
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if (aResult != NULL) {
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return NS_ERROR_NO_INTERFACE;
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}
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AddRef();
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return NS_OK;
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}
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nsrefcnt NativeDOMProxyListener::AddRef()
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{
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return mRefCnt++;
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}
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nsrefcnt NativeDOMProxyListener::Release()
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{
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if (--mRefCnt == 0) {
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delete this;
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return 0; // Don't access mRefCnt after deleting!
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}
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return mRefCnt;
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}
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