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pjs/java/webclient/src_moz/NativeEventThread.cpp

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* 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 RaptorCanvas.
*
* The Initial Developer of the Original Code is Kirk Baker and
* Ian Wilkinson. Portions created by Kirk Baker and Ian Wilkinson are
* Copyright (C) 1999 Kirk Baker and Ian Wilkinson. All
* Rights Reserved.
*
* Contributor(s): Kirk Baker <kbaker@eb.com>
* Ian Wilkinson <iw@ennoble.com>
* Mark Lin <mark.lin@eng.sun.com>
* Mark Goddard
* Ed Burns <edburns@acm.org>
* Ashutosh Kulkarni <ashuk@eng.sun.com>
* Ann Sunhachawee
*/
#include "NativeEventThread.h"
#include "CBrowserContainer.h"
#include "ns_util.h"
#include "ns_globals.h"
#include "nsEmbedAPI.h" // for NS_InitEmbedding
#include "nsIProfile.h" // for the profile manager
#include "nsICmdLineService.h" // for the cmdline service to give to the
// profile manager.
#include "nsCRT.h" // for nsCRT::strcmp
#include "prenv.h"
#include "nsILocalFile.h"
// #include "WrapperFactoryImpl.cpp"
#ifdef XP_PC
#include <windows.h>
#endif
#include "nsAppShellCIDs.h" // for NS_SESSIONHISTORY_CID
#include "nsCOMPtr.h" // to get nsIBaseWindow from webshell
//nsIDocShell is included in ns_util.h
#include "nsIEventQueueService.h" // for PLEventQueue
#include "nsRepository.h"
#include "nsIServiceManager.h" // for do_GetService
#include "nsIPref.h" // for preferences
#include "nsIThread.h" // for PRThread
#include "nsIDocShell.h"
#include "nsIBaseWindow.h"
#include "nsIDocShellTreeItem.h"
#include "nsCWebBrowser.h"
#include "nsIEventQueueService.h"
#include "nsIThread.h"
//nsIWebShell is included in ns_util.h
#include "prlog.h" // for PR_ASSERT
#ifdef XP_UNIX
#include <unistd.h>
#include "gdksuperwin.h"
#include "gtkmozarea.h"
#endif
static NS_DEFINE_IID(kWebShellCID, NS_WEB_SHELL_CID);
static NS_DEFINE_IID(kIWebShellIID, NS_IWEB_SHELL_IID);
static NS_DEFINE_IID(kISHistoryIID, NS_ISHISTORY_IID);
static NS_DEFINE_CID(kSHistoryCID, NS_SHISTORY_CID);
static NS_DEFINE_CID(kPrefCID, NS_PREF_CID);
static NS_DEFINE_CID(kCmdLineServiceCID, NS_COMMANDLINE_SERVICE_CID);
static const char *NS_DOCSHELL_PROGID = "component://netscape/docshell/html";
//static const char *NS_WEBBROWSER_PROGID = "component://netscape/embedding/browser/nsWebBrowser";
extern const char * gBinDir; // defined in WrapperFactoryImpl.cpp
#ifdef XP_PC
// All this stuff is needed to initialize the history
#define APPSHELL_DLL "appshell.dll"
#define BROWSER_DLL "nsbrowser.dll"
#define EDITOR_DLL "ender.dll"
#else
#ifdef XP_MAC
#define APPSHELL_DLL "APPSHELL_DLL"
#define EDITOR_DLL "ENDER_DLL"
#else
// XP_UNIX || XP_BEOS
#define APPSHELL_DLL "libnsappshell"MOZ_DLL_SUFFIX
#define APPCORES_DLL "libappcores"MOZ_DLL_SUFFIX
#define EDITOR_DLL "libender"MOZ_DLL_SUFFIX
#endif // XP_MAC
#endif // XP_PC
//
// Local functions
//
/**
* Called from InitMozillaStuff().
*/
int processEventLoop(WebShellInitContext * initContext);
/**
* Called from Java nativeInitialize to create the webshell, history
* and other mozilla things, then start the event loop.
*/
nsresult InitMozillaStuff (WebShellInitContext * arg);
//
// Local data
//
nsISHistory *gHistory = nsnull;
nsIComponentManager *gComponentManager = nsnull;
static PRBool gFirstTime = PR_TRUE;
char * errorMessages[] = {
"No Error",
"Could not obtain the event queue service.",
"Unable to create the WebShell instance.",
"Unable to initialize the WebShell instance.",
"Unable to show the WebShell."
};
//
// JNI methods
//
JNIEXPORT void JNICALL Java_org_mozilla_webclient_wrapper_1native_NativeEventThread_nativeInitialize
(JNIEnv *env, jobject obj, jint webShellPtr)
{
nsresult rv = NS_ERROR_FAILURE;
WebShellInitContext * initContext = (WebShellInitContext *) webShellPtr;
if (nsnull == initContext) {
::util_ThrowExceptionToJava(env,
"NULL webShellPtr passed to nativeInitialize.");
return;
}
if (nsnull == gVm) { // declared in ../src_share/jni_util.h
::util_GetJavaVM(env, &gVm); // save this vm reference
}
rv = InitMozillaStuff(initContext);
if (NS_FAILED(rv)) {
::util_ThrowExceptionToJava(env,
errorMessages[initContext->initFailCode]);
return;
}
while (initContext->initComplete == FALSE) {
::PR_Sleep(PR_INTERVAL_NO_WAIT);
if (initContext->initFailCode != 0) {
::util_ThrowExceptionToJava(env, errorMessages[initContext->initFailCode]);
return;
}
}
}
JNIEXPORT void JNICALL Java_org_mozilla_webclient_wrapper_1native_NativeEventThread_nativeProcessEvents
(JNIEnv *env, jobject obj, jint webShellPtr)
{
WebShellInitContext * initContext = (WebShellInitContext *) webShellPtr;
if (nsnull == initContext) {
::util_ThrowExceptionToJava(env,
"NULL webShellPtr passed to nativeProcessEvents.");
return;
}
processEventLoop(initContext);
}
/**
* <P> This method takes the typedListener, which is a
* WebclientEventListener java subclass, figures out what type of
* subclass it is, using the gSupportedListenerInterfaces array, and
* calls the appropriate add*Listener local function. </P>
*<P> PENDING(): we could do away with the switch statement using
* function pointers, or some other mechanism. </P>
* <P>the NewGlobalRef call is very important, since the argument
* typedListener is used to call back into java, at another time, as a
* result of the a mozilla event being fired.</P>
* PENDING(): implement nativeRemoveListener, which must call
* RemoveGlobalRef.
*/
JNIEXPORT void JNICALL Java_org_mozilla_webclient_wrapper_1native_NativeEventThread_nativeAddListener
(JNIEnv *env, jobject obj, jint webShellPtr, jobject typedListener,
jstring listenerString)
{
WebShellInitContext *initContext = (WebShellInitContext *)webShellPtr;
if (initContext == nsnull) {
::util_ThrowExceptionToJava(env, "Exception: null initContext passed tonativeAddListener");
return;
}
if (nsnull == initContext->nativeEventThread) {
// store the java EventRegistrationImpl class in the initContext
initContext->nativeEventThread =
::util_NewGlobalRef(env, obj); // VERY IMPORTANT!!
// This enables the listener to call back into java
}
jclass clazz = nsnull;
int listenerType = 0;
const char *listenerStringChars = ::util_GetStringUTFChars(env,
listenerString);
if (listenerStringChars == nsnull) {
::util_ThrowExceptionToJava(env, "Exception: nativeAddListener: Can't get className for listener.");
return;
}
while (nsnull != gSupportedListenerInterfaces[listenerType]) {
if (0 == nsCRT::strcmp(gSupportedListenerInterfaces[listenerType],
listenerStringChars)) {
// We've got a winner!
break;
}
listenerType++;
}
::util_ReleaseStringUTFChars(env, listenerString, listenerStringChars);
listenerStringChars = nsnull;
if (LISTENER_NOT_FOUND == (LISTENER_CLASSES) listenerType) {
::util_ThrowExceptionToJava(env, "Exception: NativeEventThread.nativeAddListener(): can't find listener \n\tclass for argument");
return;
}
jobject globalRef = nsnull;
// PENDING(edburns): make sure do DeleteGlobalRef on the removeListener
if (nsnull == (globalRef = ::util_NewGlobalRef(env, typedListener))) {
::util_ThrowExceptionToJava(env, "Exception: NativeEventThread.nativeAddListener(): can't create NewGlobalRef\n\tfor argument");
return;
}
PR_ASSERT(initContext->browserContainer);
switch(listenerType) {
case DOCUMENT_LOAD_LISTENER:
initContext->browserContainer->AddDocumentLoadListener(globalRef);
break;
case MOUSE_LISTENER:
initContext->browserContainer->AddMouseListener(globalRef);
break;
}
return;
}
JNIEXPORT void JNICALL
Java_org_mozilla_webclient_wrapper_1native_NativeEventThread_nativeRemoveListener
(JNIEnv *env, jobject obj, jint webShellPtr, jobject typedListener,
jstring listenerString)
{
WebShellInitContext *initContext = (WebShellInitContext *)webShellPtr;
if (initContext == nsnull) {
::util_ThrowExceptionToJava(env, "Exception: null initContext passed to nativeRemoveListener");
return;
}
jclass clazz = nsnull;
int listenerType = 0;
const char *listenerStringChars = ::util_GetStringUTFChars(env,
listenerString);
if (listenerStringChars == nsnull) {
::util_ThrowExceptionToJava(env, "Exception: nativeRemoveListener: Can't get className for listener.");
return;
}
while (nsnull != gSupportedListenerInterfaces[listenerType]) {
if (0 == nsCRT::strcmp(gSupportedListenerInterfaces[listenerType],
listenerStringChars)) {
// We've got a winner!
break;
}
listenerType++;
}
::util_ReleaseStringUTFChars(env, listenerString, listenerStringChars);
listenerStringChars = nsnull;
if (LISTENER_NOT_FOUND == (LISTENER_CLASSES) listenerType) {
::util_ThrowExceptionToJava(env, "Exception: NativeEventThread.nativeRemoveListener(): can't find listener \n\tclass for argument");
return;
}
PR_ASSERT(initContext->browserContainer);
switch(listenerType) {
case DOCUMENT_LOAD_LISTENER:
initContext->browserContainer->RemoveDocumentLoadListener();
break;
case MOUSE_LISTENER:
initContext->browserContainer->RemoveMouseListener();
break;
}
}
JNIEXPORT void JNICALL
Java_org_mozilla_webclient_wrapper_1native_NativeEventThread_nativeRemoveAllListeners(JNIEnv *env, jobject obj, jint webShellPtr)
{
WebShellInitContext *initContext = (WebShellInitContext *)webShellPtr;
if (initContext == nsnull) {
::util_ThrowExceptionToJava(env, "Exception: null initContext passed to nativeRemoveAllListeners");
return;
}
initContext->browserContainer->RemoveAllListeners();
}
/**
* This function processes methods inserted into WebShellInitContext's
* actionQueue. It is called once during the initialization of the
* NativeEventThread java thread, and infinitely in
* NativeEventThread.run()'s event loop. The call to PL_HandleEvent
* below, ends up calling the nsActionEvent subclass's handleEvent()
* method. After which it calls nsActionEvent::destroyEvent().
*/
int processEventLoop(WebShellInitContext * initContext)
{
#ifdef XP_UNIX
while(gtk_events_pending()) {
gtk_main_iteration();
}
#else
// PENDING(mark): Does this work on the Mac?
MSG msg;
if (::PeekMessage(&msg, nsnull, 0, 0, PM_NOREMOVE)) {
if (::GetMessage(&msg, nsnull, 0, 0)) {
::TranslateMessage(&msg);
::DispatchMessage(&msg);
}
}
#endif
::PR_Sleep(PR_INTERVAL_NO_WAIT);
if ((initContext->initComplete) && (initContext->actionQueue)) {
PL_ENTER_EVENT_QUEUE_MONITOR(initContext->actionQueue);
if (::PL_EventAvailable(initContext->actionQueue)) {
PLEvent * event = ::PL_GetEvent(initContext->actionQueue);
if (event != nsnull) {
::PL_HandleEvent(event);
}
}
PL_EXIT_EVENT_QUEUE_MONITOR(initContext->actionQueue);
}
if (initContext->stopThread) {
initContext->stopThread++;
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;
}
// Ashu
#ifdef XP_UNIX
static void event_processor_callback(gpointer data,
gint source,
GdkInputCondition condition) {
#if DEBUG_RAPTOR_CANVAS
if (prLogModuleInfo) {
PR_LOG(prLogModuleInfo, 3,
"EventHandler: event_processor_callback()\n");
}
#endif
nsIEventQueue *eventQueue = (nsIEventQueue*)data;
eventQueue->ProcessPendingEvents();
#if DEBUG_RAPTOR_CANVAS
if (prLogModuleInfo) {
PR_LOG(prLogModuleInfo, 3, "EventHandler: Done processing pending events\n");
}
#endif
}
#endif
//
void DoMozInitialization(WebShellInitContext * initContext)
{
if (gFirstTime) {
nsILocalFile * pathFile = nsnull;
nsresult rv = nsnull;
JNIEnv * env = initContext->env;
const char * BinDir = gBinDir;
rv = NS_NewLocalFile(BinDir, PR_TRUE, &pathFile);
if (NS_FAILED(rv)) {
::util_ThrowExceptionToJava(env, "call to NS_NewLocalFile failed.");
return;
}
// It is vitally important to call NS_InitEmbedding before calling
// anything else.
NS_InitEmbedding(pathFile, nsnull);
rv = NS_GetGlobalComponentManager(&gComponentManager);
if (NS_FAILED(rv)) {
::util_ThrowExceptionToJava(env, "NS_GetGlobalComponentManager() failed.");
return;
}
prLogModuleInfo = PR_NewLogModule("webclient");
const char *webclientLogFile = PR_GetEnv("WEBCLIENT_LOG_FILE");
if (nsnull != webclientLogFile) {
PR_SetLogFile(webclientLogFile);
// If this fails, it just goes to stdout/stderr
}
gComponentManager->RegisterComponentLib(kSHistoryCID, nsnull,
nsnull, APPSHELL_DLL,
PR_FALSE, PR_FALSE);
// handle the profile manager nonsense
nsCOMPtr<nsICmdLineService> cmdLine =do_GetService(kCmdLineServiceCID);
nsCOMPtr<nsIProfile> profile = do_GetService(NS_PROFILE_CONTRACTID);
if (!cmdLine || !profile) {
::util_ThrowExceptionToJava(env, "Can't get the profile manager.");
return;
}
char *argv[1];
argv[0] = strdup(gBinDir);
rv = cmdLine->Initialize(1, argv);
nsCRT::free(argv[0]);
if (NS_FAILED(rv)) {
::util_ThrowExceptionToJava(env, "Can't initialize nsICmdLineService.");
return;
}
rv = profile->StartupWithArgs(cmdLine);
if (NS_FAILED(rv)) {
::util_ThrowExceptionToJava(env, "Can't statrup nsIProfile service.");
return;
}
}
}
nsresult InitMozillaStuff (WebShellInitContext * initContext)
{
nsresult rv = nsnull;
DoMozInitialization(initContext);
PR_ASSERT(gComponentManager);
nsCOMPtr<nsIEventQueueService>
aEventQService = do_GetService(NS_EVENTQUEUESERVICE_CONTRACTID);
// if we get here, we know that aEventQService is not null.
if (!aEventQService) {
rv = NS_ERROR_FAILURE;
return rv;
}
//TODO Add tracing from nspr.
#if DEBUG_RAPTOR_CANVAS
if (prLogModuleInfo) {
PR_LOG(prLogModuleInfo, 3,
("InitMozillaStuff(%lx): Create the Event Queue for the UI thread...\n",
initContext));
}
#endif
// Create the Event Queue for the UI thread...
if (!aEventQService) {
initContext->initFailCode = kEventQueueError;
return rv;
}
// Create the event queue.
rv = aEventQService->CreateThreadEventQueue();
initContext->embeddedThread = PR_GetCurrentThread();
// Create the action queue
if (initContext->embeddedThread) {
if (initContext->actionQueue == nsnull) {
printf("InitMozillaStuff(%lx): Create the action queue\n", initContext);
// We need to do something different for Unix
nsIEventQueue * EQueue = nsnull;
rv = aEventQService->GetThreadEventQueue(initContext->embeddedThread,
&EQueue);
if (NS_FAILED(rv)) {
initContext->initFailCode = kCreateWebShellError;
return rv;
}
#ifdef XP_UNIX
gdk_input_add(EQueue->GetEventQueueSelectFD(),
GDK_INPUT_READ,
event_processor_callback,
EQueue);
#endif
PLEventQueue * plEventQueue = nsnull;
EQueue->GetPLEventQueue(&plEventQueue);
initContext->actionQueue = plEventQueue;
}
}
else {
initContext->initFailCode = kCreateWebShellError;
return NS_ERROR_UNEXPECTED;
}
// Setup Prefs obj and read default prefs
if (gFirstTime) {
nsCOMPtr<nsIPref> mPrefs(do_GetService(kPrefCID));
if (!mPrefs) {
initContext->initFailCode = kCreateWebShellError;
return NS_ERROR_UNEXPECTED;
}
rv = mPrefs->StartUp();
rv = mPrefs->ReadUserPrefs();
gFirstTime = PR_FALSE;
}
PRBool allowPlugins = PR_TRUE;
// Create the WebBrowser.
nsCOMPtr<nsIWebBrowser> webBrowser = nsnull;
webBrowser = do_CreateInstance(NS_WEBBROWSER_CONTRACTID);
initContext->webBrowser = webBrowser;
// Get the BaseWindow from the DocShell - upcast
// nsCOMPtr<nsIBaseWindow> docShellAsWin(do_QueryInterface(webBrowser));
nsCOMPtr<nsIBaseWindow> docShellAsWin;
rv = webBrowser->QueryInterface(NS_GET_IID(nsIBaseWindow), getter_AddRefs(docShellAsWin));
initContext->baseWindow = docShellAsWin;
printf ("Init the baseWindow\n");
#ifdef XP_UNIX
GtkWidget * bin;
bin = (GtkWidget *) initContext->gtkWinPtr;
if (prLogModuleInfo) {
PR_LOG(prLogModuleInfo, 3, ("Ashu Debugs - Inside InitMozillaStuff(%lx): - before Init Call...\n", initContext));
}
rv = initContext->baseWindow->InitWindow((nativeWindow) bin, nsnull, initContext->x, initContext->y, initContext->w, initContext->h);
if (prLogModuleInfo) {
PR_LOG(prLogModuleInfo, 3, ("Ashu Debugs - Inside InitMozillaStuff(%lx): - after Init Call...\n", initContext));
}
#else
rv = initContext->baseWindow->InitWindow((nativeWindow) initContext->parentHWnd, nsnull,
initContext->x, initContext->y, initContext->w, initContext->h);
#endif
printf("Create the BaseWindow...\n");
rv = initContext->baseWindow->Create();
if (NS_FAILED(rv)) {
initContext->initFailCode = kInitWebShellError;
return rv;
}
// Create the DocShell
initContext->docShell = do_GetInterface(initContext->webBrowser);
if (!initContext->docShell) {
initContext->initFailCode = kCreateDocShellError;
return rv;
}
// create our BrowserContainer, which implements many many things.
initContext->browserContainer =
new CBrowserContainer(initContext->webBrowser, initContext->env,
initContext);
// set the WebShellContainer. This is a pain. It's necessary
// because nsWebShell.cpp still checks for mContainer all over the
// place.
nsCOMPtr<nsIWebShellContainer> wsContainer(do_QueryInterface(initContext->browserContainer));
nsCOMPtr<nsIWebShell> webShell(do_QueryInterface(initContext->docShell));
webShell->SetContainer(wsContainer);
// set the TreeOwner
nsCOMPtr<nsIDocShellTreeItem> docShellAsItem(do_QueryInterface(initContext->docShell));
nsCOMPtr<nsIDocShellTreeOwner> treeOwner(do_QueryInterface(initContext->browserContainer));
docShellAsItem->SetTreeOwner(treeOwner);
// set the docloaderobserver
nsCOMPtr<nsIDocumentLoaderObserver> observer(do_QueryInterface(initContext->browserContainer));
initContext->docShell->SetDocLoaderObserver(observer);
if (nsnull == gHistory) {
rv = gComponentManager->CreateInstance(kSHistoryCID, nsnull,
kISHistoryIID,
(void**)&gHistory);
if (NS_FAILED(rv)) {
initContext->initFailCode = kHistoryWebShellError;
return rv;
}
}
printf("Creation Done.....\n");
// Get the WebNavigation Object from the DocShell
nsCOMPtr<nsIWebNavigation> webNav(do_QueryInterface(initContext->docShell));
initContext->webNavigation = webNav;
// Set the History
// initContext->webNavigation->SetSessionHistory(gHistory);
// Save the sessionHistory in the initContext
// initContext->sHistory = gHistory;
printf("Show the webBrowser\n");
// Show the webBrowser
rv = initContext->baseWindow->SetVisibility(PR_TRUE);
if (NS_FAILED(rv)) {
initContext->initFailCode = kShowWebShellError;
return rv;
}
initContext->initComplete = TRUE;
#if DEBUG_RAPTOR_CANVAS
if (prLogModuleInfo) {
PR_LOG(prLogModuleInfo, 3,
("InitMozillaStuff(%lx): enter event loop\n", initContext));
}
#endif
// Just need to loop once to clear out events before returning
processEventLoop(initContext);
return rv;
}
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