a=edburns

r=ashuk
bugs: 44327, 44328

NativeEventThread:

Re-instate the policy of creating an EventQueue for each window.
Put in a superfluous printf in processEventLoop that fixes 44327.

nsActions.{cpp,h}:

Added wsDeallocateInitContextEvent, to enable the correct
removal of the eventQueue, 44328

WindowControlImpl

Fire the wsDeallocateInitcontextEvent in nativeDestroyInitContext.

java/webclient/src_moz/NativeEventThread.cpp

@@ -149,8 +149,6 @@ nsresult InitMozillaStuff (WebShellInitContext * arg);
 nsISHistory *gHistory = nsnull;
 nsIComponentManager *gComponentManager = nsnull;
 static PRBool	gFirstTime = PR_TRUE;
-static PLEventQueue	*	gActionQueue;
-static PRThread		*	gEmbeddedThread;
 
 
 
@@ -375,6 +373,11 @@ int processEventLoop(WebShellInitContext * initContext)
         
         return 0;
       }
+
+    // PENDING(edburns): revisit this.  Not sure why this is necessary, but
+    // this fixes bug 44327
+    printf("%c", 8); // 8 is ASCII for backspace
+
     return 1;
 }
 
@@ -469,12 +472,14 @@ nsresult InitMozillaStuff (WebShellInitContext * initContext)
     
     PR_ASSERT(gComponentManager);
 
-    if (gFirstTime) {
     nsCOMPtr<nsIEventQueueService> 
         aEventQService = do_GetService(NS_EVENTQUEUESERVICE_PROGID);
     
     // if we get here, we know that aEventQService is not null.
-        nsresult rv = NS_ERROR_FAILURE;
+    if (!aEventQService) {
+        rv = NS_ERROR_FAILURE;
+        return rv;
+    }
     
     //TODO Add tracing from nspr.
     
@@ -495,7 +500,6 @@ nsresult InitMozillaStuff (WebShellInitContext * initContext)
     // Create the event queue.
     rv = aEventQService->CreateThreadEventQueue();
     initContext->embeddedThread = PR_GetCurrentThread();
-        gEmbeddedThread = initContext->embeddedThread;
     
     // Create the action queue
     if (initContext->embeddedThread) {
@@ -524,18 +528,12 @@ nsresult InitMozillaStuff (WebShellInitContext * initContext)
             
             EQueue->GetPLEventQueue(&plEventQueue);
             initContext->actionQueue = plEventQueue;
-                gActionQueue = initContext->actionQueue;
         }
     }
     else {
         initContext->initFailCode = kCreateWebShellError;
         return NS_ERROR_UNEXPECTED;
     }
-    }
-    else {
-        initContext->embeddedThread = gEmbeddedThread;
-        initContext->actionQueue = gActionQueue;
-    }
     
     // Setup Prefs obj and read default prefs
     if (gFirstTime) {
@@ -666,9 +664,6 @@ nsresult InitMozillaStuff (WebShellInitContext * initContext)
                ("InitMozillaStuff(%lx): enter event loop\n", initContext));
     }
 #endif
-    PRThread *thread = PR_GetCurrentThread();
-    printf("debug: edburns: InitMozillaStuff currentThread %p\n", thread);
-    
     // Just need to loop once to clear out events before returning
     processEventLoop(initContext);
     

java/webclient/src_moz/WindowControlImpl.cpp

@@ -123,43 +123,17 @@ Java_org_mozilla_webclient_wrapper_1native_WindowControlImpl_nativeDestroyInitCo
 		::util_ThrowExceptionToJava(env, "Exception: null webShellPtr passed to nativeDestroyInitContext");
 		return;
 	}
+    wsDeallocateInitContextEvent	* actionEvent = 
+            new wsDeallocateInitContextEvent(initContext);
+    PLEvent			* event       = (PLEvent*) *actionEvent;
+    nsresult rv;
     
-    initContext->parentHWnd = nsnull;
+    rv = (nsresult) ::util_PostSynchronousEvent(initContext, event);
-    //    ((nsISupports *)initContext->docShell)->Release();
+    if (NS_FAILED(rv)) {
-    initContext->docShell = nsnull;
+		::util_ThrowExceptionToJava(env, "Exception: Can't destroy initContext");
-    //    ((nsISupports *)initContext->webShell)->Release();
+		return;
-
-    // PENDING(edburns): this is a leak.  For some reason, webShell's
-    // refcount is two.  I believe it should be one.
-    // see http://bugzilla.mozilla.org/show_bug.cgi?id=38271
-
-    initContext->webShell = nsnull;
-    initContext->webNavigation = nsnull;
-    initContext->presShell = nsnull;
-    initContext->sHistory = nsnull;
-    initContext->baseWindow = nsnull;
-
-    // PENDING(edburns): not sure if these need to be deleted
-    initContext->actionQueue = nsnull;
-    initContext->embeddedThread = nsnull;
-    initContext->env = nsnull;
-    if (nsnull != initContext->nativeEventThread) {
-        ::util_DeleteGlobalRef(env, initContext->nativeEventThread);
-        initContext->nativeEventThread = nsnull;
 	}
-    initContext->stopThread = -1;
+    initContext->actionQueue = nsnull;
-    initContext->initComplete = FALSE;
-    initContext->initFailCode = 0;
-    initContext->x = -1;
-    initContext->y = -1;
-    initContext->w = -1;
-    initContext->h = -1;    
-    initContext->gtkWinPtr = nsnull;
-    initContext->searchContext = nsnull;
-    initContext->currentDocument = nsnull;
-    initContext->propertiesClass = nsnull;
-    initContext->browserContainer = nsnull;
-
     delete initContext;
 }
 

java/webclient/src_moz/nsActions.cpp

@@ -36,6 +36,7 @@
 #include "nsISHEntry.h"
 #include "nsIURI.h"
 
+#include "jni_util.h"
 
 void *          handleEvent     (PLEvent * event);
 void            destroyEvent    (PLEvent * event);
@@ -664,5 +665,60 @@ wsAddDocLoaderObserverEvent::handleEvent ()
     return result;
 } // handleEvent()
 
+wsDeallocateInitContextEvent::wsDeallocateInitContextEvent(WebShellInitContext* yourInitContext) :
+        nsActionEvent(),
+        mInitContext(yourInitContext)
+{
+}
+
+void *
+wsDeallocateInitContextEvent::handleEvent ()
+{
+    void *result = nsnull;
+    if (!mInitContext) {
+        return (void *) NS_ERROR_UNEXPECTED;
+    }
+
+    mInitContext->parentHWnd = nsnull;
+    //    ((nsISupports *)mInitContext->docShell)->Release();
+    mInitContext->docShell = nsnull;
+    //    ((nsISupports *)mInitContext->webShell)->Release();
+
+    // PENDING(edburns): this is a leak.  For some reason, webShell's
+    // refcount is two.  I believe it should be one.
+    // see http://bugzilla.mozilla.org/show_bug.cgi?id=38271
+
+    mInitContext->webShell = nsnull;
+    mInitContext->webNavigation = nsnull;
+    mInitContext->presShell = nsnull;
+    mInitContext->sHistory = nsnull;
+    mInitContext->baseWindow = nsnull;
+
+    mInitContext->embeddedThread = nsnull;
+    mInitContext->env = nsnull;
+    if (nsnull != mInitContext->nativeEventThread) {
+        ::util_DeleteGlobalRef((JNIEnv *) JNU_GetEnv(gVm, JNI_VERSION_1_2), 
+                               mInitContext->nativeEventThread);
+        mInitContext->nativeEventThread = nsnull;
+    }
+    mInitContext->stopThread = -1;
+    mInitContext->initComplete = FALSE;
+    mInitContext->initFailCode = 0;
+    mInitContext->x = -1;
+    mInitContext->y = -1;
+    mInitContext->w = -1;
+    mInitContext->h = -1;    
+    mInitContext->gtkWinPtr = nsnull;
+    mInitContext->searchContext = nsnull;
+    mInitContext->currentDocument = nsnull;
+    mInitContext->propertiesClass = nsnull;
+    mInitContext->browserContainer = nsnull;
+
+    //  delete mInitContext;
+        
+    return (void *) NS_OK;
+} // handleEvent()
+
+
 // EOF
 

java/webclient/src_moz/nsActions.h

@@ -44,6 +44,8 @@
 #include "nsString.h"
 #include "plevent.h"
 
+
+
 /**
 
  * Concrete subclasses of nsActionEvent are used to safely convey an
@@ -342,6 +344,19 @@ protected:
     nsIDocumentLoaderObserver *mDocObserver;
 };
 
+struct WebShellInitContext;
+
+class wsDeallocateInitContextEvent : public nsActionEvent {
+public:
+    wsDeallocateInitContextEvent(WebShellInitContext *yourInitContext);
+
+    void    *       handleEvent    (void);
+
+protected:
+    WebShellInitContext *mInitContext;
+};
+
+
 #endif /* nsActions_h___ */