Issue #1829 - Revert “Issue #1751 - Remove Mac code behind MOZ_WIDGET_TOOLKIT == 'cocoa’”

This reverts commit 1fe9c19305dadf2d5bcaa0e589fcd250389dfa8a.

11 files changed, 2071 insertions, 1 deletions

diff --git a/mailnews/base/ispdata/moz.build b/mailnews/base/ispdata/moz.build
index 363c2ba0c2..7de5dc2e32 100644
--- a/mailnews/base/ispdata/moz.build
+++ b/mailnews/base/ispdata/moz.build
@@ -2,4 +2,6 @@
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
-# Stub. This was configuring special snowflake OSX stuff.
\ No newline at end of file
+# Disable movemail for Thunderbird on OSX
+if CONFIG['MOZ_MOVEMAIL'] and not (CONFIG['MOZ_THUNDERBIRD'] and CONFIG['MOZ_WIDGET_TOOLKIT'] == 'cocoa'):
+    FINAL_TARGET_FILES.isp += ['movemail.rdf']
diff --git a/mailnews/base/src/moz.build b/mailnews/base/src/moz.build
index 65853daf96..91bf235c34 100644
--- a/mailnews/base/src/moz.build
+++ b/mailnews/base/src/moz.build
@@ -61,6 +61,8 @@ if CONFIG['OS_ARCH'] == 'WINNT':
 
 if CONFIG['MOZ_WIDGET_TOOLKIT'] in ('gtk2', 'gtk3', 'qt'):
     SOURCES += ['nsMessengerUnixIntegration.cpp']
+elif CONFIG['MOZ_WIDGET_TOOLKIT'] == 'cocoa':
+    SOURCES += ['nsMessengerOSXIntegration.mm']
 
 EXTRA_COMPONENTS += [
     'folderLookupService.js',
diff --git a/mailnews/base/src/nsMessengerOSXIntegration.h b/mailnews/base/src/nsMessengerOSXIntegration.h
new file mode 100644
index 0000000000..91f42f2a2a
--- /dev/null
+++ b/mailnews/base/src/nsMessengerOSXIntegration.h
@@ -0,0 +1,63 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef __nsMessengerOSXIntegration_h
+#define __nsMessengerOSXIntegration_h
+
+#include "nsIMessengerOSIntegration.h"
+#include "nsIFolderListener.h"
+#include "nsIAtom.h"
+#include "nsITimer.h"
+#include "nsCOMPtr.h"
+#include "nsStringGlue.h"
+#include "nsIObserver.h"
+#include "nsIAlertsService.h"
+#include "mozINewMailListener.h"
+
+#define NS_MESSENGEROSXINTEGRATION_CID \
+  {0xaa83266, 0x4225, 0x4c4b, \
+  {0x93, 0xf8, 0x94, 0xb1, 0x82, 0x58, 0x6f, 0x93}}
+
+class nsIStringBundle;
+
+class nsMessengerOSXIntegration : public nsIMessengerOSIntegration,
+                                  public nsIFolderListener,
+                                  public nsIObserver,
+                                  public mozINewMailListener
+{
+public:
+  nsMessengerOSXIntegration();
+  virtual nsresult Init();
+
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIMESSENGEROSINTEGRATION
+  NS_DECL_NSIFOLDERLISTENER
+  NS_DECL_NSIOBSERVER
+  NS_DECL_MOZINEWMAILLISTENER
+
+private:
+  virtual ~nsMessengerOSXIntegration();
+
+  nsCOMPtr<nsIAtom> mBiffStateAtom;
+  nsCOMPtr<nsIAtom> mNewMailReceivedAtom;
+  nsresult ShowAlertMessage(const nsAString& aAlertTitle, const nsAString& aAlertText, const nsACString& aFolderURI);
+  nsresult OnAlertFinished();
+  nsresult OnAlertClicked(const char16_t * aAlertCookie);
+#ifdef MOZ_SUITE
+  nsresult OnAlertClickedSimple();
+#endif
+  nsresult GetStringBundle(nsIStringBundle **aBundle);
+  void FillToolTipInfo(nsIMsgFolder *aFolder, int32_t aNewCount);
+  nsresult GetFirstFolderWithNewMail(nsIMsgFolder* aFolder, nsCString& aFolderURI);
+  nsresult BadgeDockIcon();
+  nsresult RestoreDockIcon();
+  nsresult BounceDockIcon();
+  nsresult GetNewMailAuthors(nsIMsgFolder* aFolder, nsString& aAuthors, int32_t aNewCount, int32_t* aNotDisplayed);
+
+  int32_t mUnreadTotal;
+  int32_t mUnreadChat;
+};
+
+#endif // __nsMessengerOSXIntegration_h
diff --git a/mailnews/base/src/nsMessengerOSXIntegration.mm b/mailnews/base/src/nsMessengerOSXIntegration.mm
new file mode 100644
index 0000000000..a38716e179
--- /dev/null
+++ b/mailnews/base/src/nsMessengerOSXIntegration.mm
@@ -0,0 +1,700 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nscore.h"
+#include "nsMsgUtils.h"
+#include "nsArrayUtils.h"
+#include "nsMessengerOSXIntegration.h"
+#include "nsIMsgMailSession.h"
+#include "nsIMsgIncomingServer.h"
+#include "nsIMsgIdentity.h"
+#include "nsIMsgAccount.h"
+#include "nsIMsgFolder.h"
+#include "nsCOMPtr.h"
+#include "nsMsgBaseCID.h"
+#include "nsMsgFolderFlags.h"
+#include "nsDirectoryServiceDefs.h"
+#include "nsIDirectoryService.h"
+#include "MailNewsTypes.h"
+#include "nsIWindowMediator.h"
+#include "nsIDOMChromeWindow.h"
+#include "mozIDOMWindow.h"
+#include "nsPIDOMWindow.h"
+#include "nsIDocShell.h"
+#include "nsIBaseWindow.h"
+#include "nsIWidget.h"
+#include "nsIObserverService.h"
+#include "nsIPrefService.h"
+#include "nsIPrefBranch.h"
+#include "nsIMessengerWindowService.h"
+#include "prprf.h"
+#include "nsIAlertsService.h"
+#include "nsIStringBundle.h"
+#include "nsToolkitCompsCID.h"
+#include "nsIMsgDatabase.h"
+#include "nsIMsgHdr.h"
+#include "nsISupportsPrimitives.h"
+#include "nsIWindowWatcher.h"
+#include "nsMsgLocalCID.h"
+#include "nsIMsgMailNewsUrl.h"
+#include "nsIMsgWindow.h"
+#include "nsIMsgAccountManager.h"
+#include "nsIMessenger.h"
+#include "nsObjCExceptions.h"
+#include "nsComponentManagerUtils.h"
+#include "nsServiceManagerUtils.h"
+#include "mozINewMailNotificationService.h"
+#include "mozilla/mailnews/MimeHeaderParser.h"
+
+#include <Carbon/Carbon.h>
+#import <Cocoa/Cocoa.h>
+
+#define kBiffAnimateDockIconPref "mail.biff.animate_dock_icon"
+#define kMaxDisplayCount 10
+
+using namespace mozilla::mailnews;
+
+// HACK: Limitations in Focus/SetFocus on Mac (see bug 465446)
+nsresult FocusAppNative()
+{
+  ProcessSerialNumber psn;
+
+  if (::GetCurrentProcess(&psn) != 0)
+   return NS_ERROR_FAILURE;
+
+  if (::SetFrontProcess(&psn) != 0)
+   return NS_ERROR_FAILURE;
+
+  return NS_OK;
+}
+
+static void openMailWindow(const nsCString& aUri)
+{
+  nsresult rv;
+  nsCOMPtr<nsIMsgMailSession> mailSession ( do_GetService(NS_MSGMAILSESSION_CONTRACTID, &rv));
+  if (NS_FAILED(rv))
+    return;
+
+  nsCOMPtr<nsIMsgWindow> topMostMsgWindow;
+  rv = mailSession->GetTopmostMsgWindow(getter_AddRefs(topMostMsgWindow));
+  if (topMostMsgWindow)
+  {
+    if (!aUri.IsEmpty())
+    {
+      nsCOMPtr<nsIMsgMailNewsUrl> msgUri(do_CreateInstance(NS_MAILBOXURL_CONTRACTID, &rv));
+      if (NS_FAILED(rv))
+        return;
+
+      rv = msgUri->SetSpec(aUri);
+      if (NS_FAILED(rv))
+        return;
+
+      bool isMessageUri = false;
+      msgUri->GetIsMessageUri(&isMessageUri);
+      if (isMessageUri)
+      {
+        nsCOMPtr<nsIWindowWatcher> wwatch(do_GetService(NS_WINDOWWATCHER_CONTRACTID, &rv));
+        if (NS_FAILED(rv))
+          return;
+
+        // SeaMonkey only supports message uris, whereas Thunderbird only
+        // supports message headers. This should be simplified/removed when
+        // bug 507593 is implemented.
+#ifdef MOZ_SUITE
+        nsCOMPtr<mozIDOMWindowProxy> newWindow;
+        wwatch->OpenWindow(0, "chrome://messenger/content/messageWindow.xul",
+                           "_blank", "all,chrome,dialog=no,status,toolbar", msgUri,
+                           getter_AddRefs(newWindow));
+#else
+        nsCOMPtr<nsIMessenger> messenger(do_CreateInstance(NS_MESSENGER_CONTRACTID, &rv));
+        if (NS_FAILED(rv))
+          return;
+
+        nsCOMPtr<nsIMsgDBHdr> msgHdr; 
+        messenger->MsgHdrFromURI(aUri, getter_AddRefs(msgHdr));
+        if (msgHdr)
+        {
+          nsCOMPtr<mozIDOMWindowProxy> newWindow;
+          wwatch->OpenWindow(0, "chrome://messenger/content/messageWindow.xul",
+                             "_blank", "all,chrome,dialog=no,status,toolbar", msgHdr,
+                             getter_AddRefs(newWindow));
+        }
+#endif
+      }
+      else
+      {
+        nsCOMPtr<nsIMsgWindowCommands> windowCommands;
+        topMostMsgWindow->GetWindowCommands(getter_AddRefs(windowCommands));
+        if (windowCommands)
+          windowCommands->SelectFolder(aUri);
+      }
+    }
+
+    FocusAppNative();
+    nsCOMPtr<mozIDOMWindowProxy> domWindow;
+    topMostMsgWindow->GetDomWindow(getter_AddRefs(domWindow));
+    if (domWindow) {
+      nsCOMPtr<nsPIDOMWindowOuter> privateWindow = nsPIDOMWindowOuter::From(domWindow);
+      privateWindow->Focus();
+    }
+  }
+  else
+  {
+    // the user doesn't have a mail window open already so open one for them...
+    nsCOMPtr<nsIMessengerWindowService> messengerWindowService =
+      do_GetService(NS_MESSENGERWINDOWSERVICE_CONTRACTID);
+    // if we want to preselect the first account with new mail,
+    // here is where we would try to generate a uri to pass in
+    // (and add code to the messenger window service to make that work)
+    if (messengerWindowService)
+      messengerWindowService->OpenMessengerWindowWithUri(
+                                "mail:3pane", aUri.get(), nsMsgKey_None);
+  }
+}
+
+nsMessengerOSXIntegration::nsMessengerOSXIntegration()
+{
+  mBiffStateAtom = MsgGetAtom("BiffState");
+  mNewMailReceivedAtom = MsgGetAtom("NewMailReceived");
+  mUnreadTotal = 0;
+}
+
+nsMessengerOSXIntegration::~nsMessengerOSXIntegration()
+{
+  RestoreDockIcon();
+}
+
+NS_IMPL_ADDREF(nsMessengerOSXIntegration)
+NS_IMPL_RELEASE(nsMessengerOSXIntegration)
+
+NS_INTERFACE_MAP_BEGIN(nsMessengerOSXIntegration)
+   NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIMessengerOSIntegration)
+   NS_INTERFACE_MAP_ENTRY(nsIMessengerOSIntegration)
+   NS_INTERFACE_MAP_ENTRY(nsIFolderListener)
+   NS_INTERFACE_MAP_ENTRY(nsIObserver)
+   NS_INTERFACE_MAP_ENTRY(mozINewMailListener)
+NS_INTERFACE_MAP_END
+
+
+nsresult
+nsMessengerOSXIntegration::Init()
+{
+  nsresult rv;
+  nsCOMPtr<nsIObserverService> observerService = do_GetService("@mozilla.org/observer-service;1", &rv);
+  NS_ENSURE_SUCCESS(rv, rv);
+  return observerService->AddObserver(this, "mail-startup-done", false);
+}
+
+NS_IMETHODIMP
+nsMessengerOSXIntegration::OnItemPropertyChanged(nsIMsgFolder *, nsIAtom *, char const *, char const *)
+{
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMessengerOSXIntegration::OnItemUnicharPropertyChanged(nsIMsgFolder *, nsIAtom *, const char16_t *, const char16_t *)
+{
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMessengerOSXIntegration::OnItemRemoved(nsIMsgFolder *, nsISupports *)
+{
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMessengerOSXIntegration::Observe(nsISupports* aSubject, const char* aTopic, const char16_t* aData)
+{
+  if (!strcmp(aTopic, "alertfinished"))
+    return OnAlertFinished();
+
+  if (!strcmp(aTopic, "alertclickcallback"))
+    return OnAlertClicked(aData);
+
+#ifdef MOZ_SUITE
+  // SeaMonkey does most of the GUI work in JS code when clicking on a mail
+  // notification, so it needs an extra function here 
+  if (!strcmp(aTopic, "alertclicksimplecallback"))
+    return OnAlertClickedSimple();
+#endif
+
+  if (!strcmp(aTopic, "mail-startup-done")) {
+    nsresult rv;
+    nsCOMPtr<nsIObserverService> observerService = do_GetService("@mozilla.org/observer-service;1", &rv);
+    if (NS_SUCCEEDED(rv)) {
+      observerService->RemoveObserver(this, "mail-startup-done");
+
+      nsCOMPtr<nsIPrefBranch> pref(do_GetService(NS_PREFSERVICE_CONTRACTID, &rv));
+    }
+
+    // Register with the new mail service for changes to the unread message count
+    nsCOMPtr<mozINewMailNotificationService> newmail
+      = do_GetService(MOZ_NEWMAILNOTIFICATIONSERVICE_CONTRACTID, &rv);
+    NS_ENSURE_SUCCESS(rv, rv); // This should really be an assert with a helpful message
+    rv = newmail->AddListener(this, mozINewMailNotificationService::count);
+    NS_ENSURE_SUCCESS(rv, rv); // This should really be an assert with a helpful message
+
+    // Get the initial unread count. Ignore return value; if code above didn't fail, this won't
+    rv = newmail->GetMessageCount(&mUnreadTotal);
+    BadgeDockIcon();
+
+    // register with the mail sesson for folder events
+    // we care about new count, biff status
+    nsCOMPtr<nsIMsgMailSession> mailSession = do_GetService(NS_MSGMAILSESSION_CONTRACTID, &rv);
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    return mailSession->AddFolderListener(this, nsIFolderListener::boolPropertyChanged | nsIFolderListener::intPropertyChanged);
+  }
+
+  return NS_OK;
+}
+
+nsresult
+nsMessengerOSXIntegration::GetStringBundle(nsIStringBundle **aBundle)
+{
+  NS_ENSURE_ARG_POINTER(aBundle);
+  nsresult rv;
+  nsCOMPtr<nsIStringBundleService> bundleService = do_GetService(NS_STRINGBUNDLE_CONTRACTID, &rv);
+  nsCOMPtr<nsIStringBundle> bundle;
+  if (bundleService && NS_SUCCEEDED(rv))
+    bundleService->CreateBundle("chrome://messenger/locale/messenger.properties", getter_AddRefs(bundle));
+  bundle.swap(*aBundle);
+  return rv;
+}
+
+void
+nsMessengerOSXIntegration::FillToolTipInfo(nsIMsgFolder *aFolder, int32_t aNewCount)
+{
+  if (aFolder)
+  {
+    nsString authors;
+    int32_t numNotDisplayed;
+    nsresult rv = GetNewMailAuthors(aFolder, authors, aNewCount, &numNotDisplayed);
+
+    // If all senders are vetoed, the authors string will be empty.
+    if (NS_FAILED(rv) || authors.IsEmpty())
+      return;
+
+    // If this isn't the root folder, get it so we can report for it.
+    // GetRootFolder always returns the server's root, so calling on the root itself is fine.
+    nsCOMPtr<nsIMsgFolder> rootFolder;
+    aFolder->GetRootFolder(getter_AddRefs(rootFolder));
+    if (!rootFolder)
+      return;
+
+    nsString accountName;
+    rootFolder->GetPrettiestName(accountName);
+
+    nsCOMPtr<nsIStringBundle> bundle;
+    GetStringBundle(getter_AddRefs(bundle));
+    if (bundle)
+    {
+      nsAutoString numNewMsgsText;
+      numNewMsgsText.AppendInt(aNewCount);
+      nsString finalText;
+      nsCString uri;
+      aFolder->GetURI(uri);
+
+      if (numNotDisplayed > 0)
+      {
+        nsAutoString numNotDisplayedText;
+        numNotDisplayedText.AppendInt(numNotDisplayed);
+        const char16_t *formatStrings[3] = { numNewMsgsText.get(), authors.get(), numNotDisplayedText.get() };
+        bundle->FormatStringFromName(u"macBiffNotification_messages_extra",
+                                     formatStrings,
+                                     3,
+                                     getter_Copies(finalText));
+      }
+      else
+      {
+        const char16_t *formatStrings[2] = { numNewMsgsText.get(), authors.get() };
+
+        if (aNewCount == 1)
+        {
+          bundle->FormatStringFromName(u"macBiffNotification_message",
+                                       formatStrings,
+                                       2,
+                                       getter_Copies(finalText));
+          // Since there is only 1 message, use the most recent mail's URI instead of the folder's
+          nsCOMPtr<nsIMsgDatabase> db;
+          rv = aFolder->GetMsgDatabase(getter_AddRefs(db));
+          if (NS_SUCCEEDED(rv) && db)
+          {
+            uint32_t numNewKeys;
+            uint32_t *newMessageKeys;
+            rv = db->GetNewList(&numNewKeys, &newMessageKeys);
+            if (NS_SUCCEEDED(rv))
+            {
+              nsCOMPtr<nsIMsgDBHdr> hdr;
+              rv = db->GetMsgHdrForKey(newMessageKeys[numNewKeys - 1],
+                                       getter_AddRefs(hdr));
+              if (NS_SUCCEEDED(rv) && hdr)
+                aFolder->GetUriForMsg(hdr, uri);
+            }
+            NS_Free(newMessageKeys);
+          }
+        }
+        else
+          bundle->FormatStringFromName(u"macBiffNotification_messages",
+                                       formatStrings,
+                                       2,
+                                       getter_Copies(finalText));
+      }
+      ShowAlertMessage(accountName, finalText, uri);
+    } // if we got a bundle
+  } // if we got a folder
+}
+
+nsresult
+nsMessengerOSXIntegration::ShowAlertMessage(const nsAString& aAlertTitle,
+                                            const nsAString& aAlertText,
+                                            const nsACString& aFolderURI)
+{
+  nsresult rv;
+
+  nsCOMPtr<nsIAlertsService> alertsService (do_GetService(NS_ALERTSERVICE_CONTRACTID, &rv));
+  // If we have an nsIAlertsService implementation, use it:
+  if (NS_SUCCEEDED(rv))
+  {
+    alertsService->ShowAlertNotification(EmptyString(),
+                                         aAlertTitle, aAlertText, true,
+                                         NS_ConvertASCIItoUTF16(aFolderURI),
+                                         this, EmptyString(),
+                                         NS_LITERAL_STRING("auto"),
+                                         EmptyString(), EmptyString(),
+                                         nullptr,
+                                         false,
+                                         false);
+  }
+
+  BounceDockIcon();
+
+  if (NS_FAILED(rv))
+    OnAlertFinished();
+
+  return rv;
+}
+
+NS_IMETHODIMP
+nsMessengerOSXIntegration::OnItemIntPropertyChanged(nsIMsgFolder *aFolder,
+                                                    nsIAtom *aProperty,
+                                                    int64_t aOldValue,
+                                                    int64_t aNewValue)
+{
+  // if we got new mail show an alert
+  if (aNewValue == nsIMsgFolder::nsMsgBiffState_NewMail)
+  {
+    bool performingBiff = false;
+    nsCOMPtr<nsIMsgIncomingServer> server;
+    aFolder->GetServer(getter_AddRefs(server));
+    if (server)
+      server->GetPerformingBiff(&performingBiff);
+    if (!performingBiff)
+      return NS_OK; // kick out right now...
+
+    // Biff happens for the root folder, but we want info for the child with new mail
+    nsCString folderUri;
+    GetFirstFolderWithNewMail(aFolder, folderUri);
+    nsCOMPtr<nsIMsgFolder> childFolder;
+    nsresult rv = aFolder->GetChildWithURI(folderUri, true, true,
+                                           getter_AddRefs(childFolder));
+    if (NS_FAILED(rv) || !childFolder)
+      return NS_ERROR_FAILURE;
+
+    int32_t numNewMessages = 0;
+    childFolder->GetNumNewMessages(true, &numNewMessages);
+    FillToolTipInfo(childFolder, numNewMessages);
+  }
+  else if (mNewMailReceivedAtom == aProperty)
+  {
+    FillToolTipInfo(aFolder, aNewValue);
+  }
+  return NS_OK;
+}
+
+nsresult
+nsMessengerOSXIntegration::OnAlertClicked(const char16_t* aAlertCookie)
+{
+  openMailWindow(NS_ConvertUTF16toUTF8(aAlertCookie));
+  return NS_OK;
+}
+
+#ifdef MOZ_SUITE
+nsresult
+nsMessengerOSXIntegration::OnAlertClickedSimple()
+{
+  // SeaMonkey only function; only focus the app here, rest of the work will
+  // be done in suite/mailnews/mailWidgets.xml
+  FocusAppNative();
+  return NS_OK;
+}
+#endif
+
+nsresult
+nsMessengerOSXIntegration::OnAlertFinished()
+{
+  return NS_OK;
+}
+
+nsresult
+nsMessengerOSXIntegration::BounceDockIcon()
+{
+  nsresult rv;
+  nsCOMPtr<nsIPrefBranch> prefBranch(do_GetService(NS_PREFSERVICE_CONTRACTID, &rv));
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  bool bounceDockIcon = false;
+  rv = prefBranch->GetBoolPref(kBiffAnimateDockIconPref, &bounceDockIcon);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  if (!bounceDockIcon)
+    return NS_OK;
+
+  nsCOMPtr<nsIWindowMediator> mediator(do_GetService(NS_WINDOWMEDIATOR_CONTRACTID));
+  if (mediator)
+  {
+    nsCOMPtr<mozIDOMWindowProxy> domWindow;
+    mediator->GetMostRecentWindow(u"mail:3pane", getter_AddRefs(domWindow));
+    if (domWindow)
+    {
+      nsCOMPtr<nsIDOMChromeWindow> chromeWindow(do_QueryInterface(domWindow));
+      chromeWindow->GetAttention();
+    }
+  }
+  return NS_OK;
+}
+
+nsresult
+nsMessengerOSXIntegration::RestoreDockIcon()
+{
+  NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
+
+  id tile = [[NSApplication sharedApplication] dockTile];
+  [tile setBadgeLabel: nil];
+
+  return NS_OK;
+
+  NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
+}
+
+nsresult
+nsMessengerOSXIntegration::BadgeDockIcon()
+{
+  NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
+
+  int32_t unreadCount = mUnreadTotal;
+  // If count is less than one, we should restore the original dock icon.
+  if (unreadCount < 1)
+  {
+    RestoreDockIcon();
+    return NS_OK;
+  }
+
+  // Draw the number, first giving extensions a chance to modify.
+  // Extensions might wish to transform "1000" into "100+" or some
+  // other short string. Getting back the empty string will cause
+  // nothing to be drawn and us to return early.
+  nsresult rv;
+  nsCOMPtr<nsIObserverService> os
+    (do_GetService("@mozilla.org/observer-service;1", &rv));
+  if (NS_FAILED(rv))
+  {
+    RestoreDockIcon();
+    return rv;
+  }
+
+  nsCOMPtr<nsISupportsString> str
+    (do_CreateInstance(NS_SUPPORTS_STRING_CONTRACTID, &rv));
+  if (NS_FAILED(rv))
+  {
+    RestoreDockIcon();
+    return rv;
+  }
+
+  nsAutoString total;
+  total.AppendInt(unreadCount);
+  str->SetData(total);
+  os->NotifyObservers(str, "before-unread-count-display",
+                      total.get());
+  nsAutoString badgeString;
+  str->GetData(badgeString);
+  if (badgeString.IsEmpty())
+  {
+    RestoreDockIcon();
+    return NS_OK;
+  }
+
+  id tile = [[NSApplication sharedApplication] dockTile];
+  [tile setBadgeLabel:[NSString stringWithFormat:@"%S", (const unichar*)badgeString.get()]];
+  return NS_OK;
+
+  NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
+}
+
+NS_IMETHODIMP
+nsMessengerOSXIntegration::OnItemPropertyFlagChanged(nsIMsgDBHdr *item, nsIAtom *property, uint32_t oldFlag, uint32_t newFlag)
+{
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMessengerOSXIntegration::OnItemAdded(nsIMsgFolder *, nsISupports *)
+{
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMessengerOSXIntegration::OnItemBoolPropertyChanged(nsIMsgFolder *aItem,
+                                                         nsIAtom *aProperty,
+                                                         bool aOldValue,
+                                                         bool aNewValue)
+{
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMessengerOSXIntegration::OnItemEvent(nsIMsgFolder *, nsIAtom *)
+{
+  return NS_OK;
+}
+
+nsresult
+nsMessengerOSXIntegration::GetNewMailAuthors(nsIMsgFolder* aFolder,
+                                             nsString& aAuthors,
+                                             int32_t aNewCount,
+                                             int32_t* aNotDisplayed)
+{
+  // Get a list of names or email addresses for the folder's authors
+  // with new mail. Note that we only process the most recent "new"
+  // mail (aNewCount), working from most recently added. Duplicates
+  // are removed, and names are displayed to a set limit
+  // (kMaxDisplayCount) with the remaining count being returned in
+  // aNotDisplayed. Extension developers can listen for
+  // "newmail-notification-requested" and then make a decision about
+  // including a given author or not. As a result, it is possible that
+  // the resulting length of aAuthors will be 0.
+  nsCOMPtr<nsIMsgDatabase> db;
+  nsresult rv = aFolder->GetMsgDatabase(getter_AddRefs(db));
+  uint32_t numNewKeys = 0;
+  if (NS_SUCCEEDED(rv) && db)
+  {
+    nsCOMPtr<nsIObserverService> os =
+      do_GetService("@mozilla.org/observer-service;1", &rv);
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    // Get proper l10n list separator -- ", " in English
+    nsCOMPtr<nsIStringBundle> bundle;
+    GetStringBundle(getter_AddRefs(bundle));
+    if (!bundle)
+      return NS_ERROR_FAILURE;
+
+    uint32_t *newMessageKeys;
+    rv = db->GetNewList(&numNewKeys, &newMessageKeys);
+    if (NS_SUCCEEDED(rv))
+    {
+      nsString listSeparator;
+      bundle->GetStringFromName(u"macBiffNotification_separator", getter_Copies(listSeparator));
+
+      int32_t displayed = 0;
+      for (int32_t i = numNewKeys - 1; i >= 0; i--, aNewCount--)
+      {
+        if (0 == aNewCount || displayed == kMaxDisplayCount)
+          break;
+
+        nsCOMPtr<nsIMsgDBHdr> hdr;
+        rv = db->GetMsgHdrForKey(newMessageKeys[i],
+                                 getter_AddRefs(hdr));
+        if (NS_SUCCEEDED(rv) && hdr)
+        {
+          nsString author;
+          rv = hdr->GetMime2DecodedAuthor(author);
+          if (NS_FAILED(rv))
+            continue;
+
+          nsString name;
+          ExtractName(DecodedHeader(author), name);
+
+          // Give extensions a chance to suppress notifications for this author
+          nsCOMPtr<nsISupportsPRBool> notify =
+            do_CreateInstance(NS_SUPPORTS_PRBOOL_CONTRACTID);
+
+          notify->SetData(true);
+          os->NotifyObservers(notify, "newmail-notification-requested",
+                              author.get());
+
+          bool includeSender;
+          notify->GetData(&includeSender);
+
+          // Don't add unwanted or duplicate names
+          if (includeSender && aAuthors.Find(name, true) == -1)
+          {
+            if (displayed > 0)
+              aAuthors.Append(listSeparator);
+            aAuthors.Append(name);
+            displayed++;
+          }
+        }
+      }
+    }
+    NS_Free(newMessageKeys);
+  }
+  *aNotDisplayed = aNewCount;
+  return rv;
+}
+
+nsresult
+nsMessengerOSXIntegration::GetFirstFolderWithNewMail(nsIMsgFolder* aFolder, nsCString& aFolderURI)
+{
+  // Find the subfolder in aFolder with new mail and return the folderURI
+  if (aFolder)
+  {
+    nsCOMPtr<nsIMsgFolder> msgFolder;
+    // enumerate over the folders under this root folder till we find one with new mail....
+    nsCOMPtr<nsIArray> allFolders;
+    nsresult rv = aFolder->GetDescendants(getter_AddRefs(allFolders));
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    nsCOMPtr<nsISimpleEnumerator> enumerator;
+    rv = allFolders->Enumerate(getter_AddRefs(enumerator));
+    if (NS_SUCCEEDED(rv) && enumerator)
+    {
+      nsCOMPtr<nsISupports> supports;
+      int32_t numNewMessages = 0;
+      bool hasMore = false;
+      while (NS_SUCCEEDED(enumerator->HasMoreElements(&hasMore)) && hasMore)
+      {
+        rv = enumerator->GetNext(getter_AddRefs(supports));
+        if (NS_SUCCEEDED(rv) && supports)
+        {
+          msgFolder = do_QueryInterface(supports, &rv);
+          if (msgFolder)
+          {
+            numNewMessages = 0;
+            msgFolder->GetNumNewMessages(false, &numNewMessages);
+            if (numNewMessages)
+              break; // kick out of the while loop
+          }
+        } // if we have a folder
+      }  // if we have more potential folders to enumerate
+    }  // if enumerator
+
+    if (msgFolder)
+      msgFolder->GetURI(aFolderURI);
+  }
+
+  return NS_OK;
+}
+
+/*
+ * Method implementations for mozINewMailListener
+ */
+NS_IMETHODIMP
+nsMessengerOSXIntegration::OnCountChanged(uint32_t count)
+{
+  mUnreadTotal = count;
+  BadgeDockIcon();
+  return NS_OK;
+}
diff --git a/mailnews/build/moz.build b/mailnews/build/moz.build
index 9561fd33d8..9620e8f3d4 100644
--- a/mailnews/build/moz.build
+++ b/mailnews/build/moz.build
@@ -35,6 +35,10 @@ if CONFIG['OS_ARCH'] == 'WINNT':
 else:
     OS_LIBS += CONFIG['MOZ_ZLIB_LIBS']
 
+if CONFIG['MOZ_WIDGET_TOOLKIT'] == 'cocoa':
+    OS_LIBS += CONFIG['TK_LIBS']
+    OS_LIBS += ['-framework Cocoa']
+
 LOCAL_INCLUDES += [
     '/mailnews/addrbook/src',
     '/mailnews/base/search/src',
diff --git a/mailnews/compose/src/moz.build b/mailnews/compose/src/moz.build
index 831a0340f4..dcb9960a66 100644
--- a/mailnews/compose/src/moz.build
+++ b/mailnews/compose/src/moz.build
@@ -35,6 +35,16 @@ SOURCES += [
     'nsURLFetcher.cpp',
 ]
 
+if CONFIG['MOZ_WIDGET_TOOLKIT'] == 'cocoa':
+    SOURCES += [
+        'nsMsgAppleDoubleEncode.cpp',
+        'nsMsgAppleEncode.cpp',
+    ]
+    EXPORTS += [
+        'nsMsgAppleCodes.h',
+        'nsMsgAppleDouble.h',
+    ]
+
 EXTRA_COMPONENTS += [
     'nsSMTPProtocolHandler.js',
     'nsSMTPProtocolHandler.manifest',
diff --git a/mailnews/compose/src/nsMsgAppleCodes.h b/mailnews/compose/src/nsMsgAppleCodes.h
new file mode 100644
index 0000000000..d8ca2f327c
--- /dev/null
+++ b/mailnews/compose/src/nsMsgAppleCodes.h
@@ -0,0 +1,106 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+**	AD_Codes.h
+**
+**	---------------
+**
+**		Head file for Apple Decode/Encode essential codes.
+**
+**
+*/
+
+#ifndef ad_codes_h
+#define ad_codes_h
+
+/*
+** applefile definitions used 
+*/
+#if PRAGMA_STRUCT_ALIGN
+  #pragma options align=mac68k
+#endif
+
+#define APPLESINGLE_MAGIC	0x00051600L
+#define APPLEDOUBLE_MAGIC 	0x00051607L
+#define VERSION 			0x00020000
+
+#define NUM_ENTRIES 		6
+
+#define ENT_DFORK   		1L
+#define ENT_RFORK   		2L
+#define ENT_NAME    		3L
+#define ENT_COMMENT 		4L
+#define ENT_DATES   		8L
+#define ENT_FINFO   		9L
+#define CONVERT_TIME 		1265437696L
+
+/*
+** data type used in the encoder/decoder.
+*/
+typedef struct ap_header 
+{
+	int32_t 	magic;
+	int32_t	version;
+	char 	fill[16];
+	int16_t 	entries;
+
+} ap_header;
+
+typedef struct ap_entry 
+{
+	int32_t  id;
+	int32_t	offset;
+	int32_t	length;
+	
+} ap_entry;
+
+typedef struct ap_dates 
+{
+	int32_t create, modify, backup, access;
+
+} ap_dates;
+
+typedef struct myFInfo			/* the mac FInfo structure for the cross platform. */
+{	
+	int32_t	fdType, fdCreator;
+	int16_t	fdFlags;
+	int32_t	fdLocation;			/* it really should  be a pointer, but just a place-holder  */
+	int16_t	fdFldr;	
+
+}	myFInfo;
+
+PR_BEGIN_EXTERN_C
+/*
+**	string utils.
+*/
+int write_stream(appledouble_encode_object *p_ap_encode_obj, const char *s,int len);
+
+int fill_apple_mime_header(appledouble_encode_object *p_ap_encode_obj);
+int ap_encode_file_infor(appledouble_encode_object *p_ap_encode_obj);
+int ap_encode_header(appledouble_encode_object* p_ap_encode_obj, bool firstTime);
+int ap_encode_data(  appledouble_encode_object* p_ap_encode_obj, bool firstTime);
+
+/*
+**	the prototypes for the ap_decoder.
+*/
+int  fetch_a_line(appledouble_decode_object* p_ap_decode_obj, char *buff);
+int  ParseFileHeader(appledouble_decode_object* p_ap_decode_obj);
+int  ap_seek_part_start(appledouble_decode_object* p_ap_decode_obj);
+void parse_param(char *p, char **param, char**define, char **np);
+int  ap_seek_to_boundary(appledouble_decode_object* p_ap_decode_obj, bool firstime);
+int  ap_parse_header(appledouble_decode_object* p_ap_decode_obj,bool firstime);
+int  ap_decode_file_infor(appledouble_decode_object* p_ap_decode_obj);
+int  ap_decode_process_header(appledouble_decode_object* p_ap_decode_obj, bool firstime);
+int  ap_decode_process_data(  appledouble_decode_object* p_ap_decode_obj, bool firstime);
+
+PR_END_EXTERN_C
+ 
+#if PRAGMA_STRUCT_ALIGN
+  #pragma options align=reset
+#endif
+
+#endif /* ad_codes_h */
diff --git a/mailnews/compose/src/nsMsgAppleDouble.h b/mailnews/compose/src/nsMsgAppleDouble.h
new file mode 100644
index 0000000000..f4ae934add
--- /dev/null
+++ b/mailnews/compose/src/nsMsgAppleDouble.h
@@ -0,0 +1,207 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* 
+*   AppleDouble.h
+*	-------------
+*
+*  	  The header file for a stream based apple single/double encodor/decodor.
+*		
+*		2aug95	mym		
+*		
+*/
+
+
+#ifndef AppleDouble_h
+#define AppleDouble_h
+
+#include "msgCore.h"
+#include "nsComposeStrings.h"
+#include "nsIOutputStream.h"
+#include "nsCOMPtr.h"
+
+#include <CoreServices/CoreServices.h>
+
+#define NOERR			0
+#define errDone			1
+								/* Done with current operation.	*/
+#define errEOB			2
+								/* 	End of a buffer.			*/
+#define errEOP			3	
+								/* 	End of a Part.				*/
+
+					
+#define errFileOpen	NS_ERROR_GET_CODE(NS_MSG_UNABLE_TO_OPEN_TMP_FILE)
+#define errFileWrite	-202 /*Error writing temporary file.*/
+#define errUsrCancel	-2  /*MK_INTERRUPTED */
+#define errDecoding		-1
+
+/*
+** The envirment block data type. 
+*/
+enum 
+{ 
+	kInit, 
+	kDoingHeaderPortion, 
+	kDoneHeaderPortion, 
+	kDoingDataPortion, 
+	kDoneDataPortion 
+};
+
+typedef struct _appledouble_encode_object 
+{
+    char    fname[256];
+    FSIORefNum fileId;				/* the id for the open file (data/resource fork) */
+
+	int 	state;
+	int		text_file_type;		/* if the file has a text file type with it.	*/
+	char	*boundary;			/* the boundary string.							*/
+
+	int		status;				/* the error code if anyerror happens.			*/
+	char 	b_overflow[200];
+	int		s_overflow;
+	
+	int		state64;			/* the left over state of base64 enocding 		*/
+	int		ct;					/* the character count of base64 encoding		*/
+	int 	c1, c2;				/* the left of the last base64 encoding 		*/		
+
+	char 	*outbuff;			/* the outbuff by the caller.           		*/
+	int		s_outbuff;			/* the size of the buffer.						*/
+	int		pos_outbuff;		/* the offset in the current buffer.			*/ 
+
+} appledouble_encode_object;
+
+/* The possible content transfer encodings */
+
+enum 
+{ 
+	kEncodeNone,
+	kEncodeQP,
+	kEncodeBase64,
+	kEncodeUU
+};
+
+enum 
+{ 
+	kGeneralMine,
+	kAppleDouble,
+	kAppleSingle
+};
+
+enum 
+{ 
+	kInline,
+	kDontCare
+};
+
+enum 
+{ 
+	kHeaderPortion,
+	kDataPortion
+};
+
+/* the decode states.	*/
+enum 
+{ 
+	kBeginParseHeader = 3,
+	kParsingHeader,
+	kBeginSeekBoundary,
+	kSeekingBoundary,
+	kBeginHeaderPortion, 
+	kProcessingHeaderPortion, 
+	kBeginDataPortion, 
+	kProcessingDataPortion, 
+	kFinishing
+};
+
+/* uuencode states */
+enum
+{
+	kWaitingForBegin = (int) 0,
+	kBegin,
+	kMainBody,
+	kEnd
+};
+
+typedef struct _appledouble_decode_object 
+{
+	int		is_binary;
+	int		is_apple_single;	/* if the object encoded is in apple single		*/
+	int		write_as_binhex;
+	
+	int		messagetype;
+	char*	boundary0;			/* the boundary for the enclosure.				*/
+	int		deposition;			/* the deposition.								*/
+	int		encoding;			/* the encoding method.							*/
+	int		which_part;
+	
+	char	fname[256];
+	// nsIOFileStream *fileSpec;					/* the stream for data fork work.					 */
+
+	int 	state;
+	
+	int		rksize;				/* the resource fork size count.				*/
+	int		dksize;				/* the data fork size count.					*/
+	 
+	int		status;				/* the error code if anyerror happens.			*/
+	char 	b_leftover[256];
+	int		s_leftover;
+	
+	int		encode;				/* the encode type of the message.				*/
+	int		state64;			/* the left over state of base64 enocding 		*/
+	int		left;				/* the character count of base64 encoding		*/
+	int 	c[4];				/* the left of the last base64 encoding 		*/		
+	int		uu_starts_line;		/* is decoder at the start of a line? (uuencode)	*/
+	int		uu_state;			/* state w/r/t the uuencode body */
+	int		uu_bytes_written;	/* bytes written from the current tuple (uuencode) */
+	int		uu_line_bytes;		/* encoded bytes remaining in the current line (uuencode) */
+
+	char 	*inbuff;			/* the outbuff by the caller.           		*/
+	int		s_inbuff;			/* the size of the buffer.						*/
+	int		pos_inbuff;			/* the offset in the current buffer.			*/ 
+
+
+	nsCOMPtr <nsIFile> tmpFile;		/* the temp file to hold the decode data fork 	*/
+								                      /* when doing the binhex exporting.				*/
+  nsCOMPtr <nsIOutputStream> tmpFileStream; /* The output File Stream */
+	int32_t	            data_size;			/* the size of the data in the tmp file.		*/
+
+} appledouble_decode_object;
+
+
+/*
+**	The protypes.
+*/
+
+PR_BEGIN_EXTERN_C
+
+int ap_encode_init(appledouble_encode_object *p_ap_encode_obj, 
+					const char* fname,
+					char* separator);
+
+int ap_encode_next(appledouble_encode_object* p_ap_encode_obj, 
+					char 	*to_buff,
+					int32_t 	buff_size,
+					int32_t*	real_size);
+
+int ap_encode_end(appledouble_encode_object* p_ap_encode_obj,
+					bool	is_aborting);
+
+int ap_decode_init(appledouble_decode_object* p_ap_decode_obj,
+					bool	is_apple_single,
+					bool	write_as_bin_hex,
+					void  	*closure);
+
+int ap_decode_next(appledouble_decode_object* p_ap_decode_obj, 
+					char 	*in_buff, 
+					int32_t 	buff_size);
+
+int ap_decode_end(appledouble_decode_object* p_ap_decode_obj, 
+				 	bool is_aborting);
+
+PR_END_EXTERN_C
+
+#endif
diff --git a/mailnews/compose/src/nsMsgAppleDoubleEncode.cpp b/mailnews/compose/src/nsMsgAppleDoubleEncode.cpp
new file mode 100644
index 0000000000..4d71781233
--- /dev/null
+++ b/mailnews/compose/src/nsMsgAppleDoubleEncode.cpp
@@ -0,0 +1,266 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+*
+*   apple-double.c
+*	--------------
+*
+*  	  The codes to do apple double encoding/decoding.
+*		
+*		02aug95		mym		created.
+*		
+*/
+#include "nsID.h"
+#include "nscore.h"
+#include "nsStringGlue.h"
+#include "nsMsgAppleDouble.h"
+#include "nsMsgAppleCodes.h"
+#include "nsMsgCompUtils.h"
+#include "nsCExternalHandlerService.h"
+#include "nsIMIMEService.h"
+#include "nsMimeTypes.h"
+#include "prmem.h"
+#include "nsNetUtil.h"
+
+
+void	
+MacGetFileType(nsIFile   *fs, 
+               bool         *useDefault, 
+               char         **fileType, 
+               char         **encoding)
+{
+	if ((fs == NULL) || (fileType == NULL) || (encoding == NULL))
+		return;
+
+  bool exists = false;
+  fs->Exists(&exists);
+  if (!exists)
+    return;
+
+	*useDefault = TRUE;
+	*fileType = NULL;
+	*encoding = NULL;
+
+  nsCOMPtr<nsILocalFileMac> macFile = do_QueryInterface(fs);
+  FSRef fsRef;
+  FSCatalogInfo catalogInfo;
+  OSErr err = errFileOpen;
+  if (NS_SUCCEEDED(macFile->GetFSRef(&fsRef)))
+    err = ::FSGetCatalogInfo(&fsRef, kFSCatInfoFinderInfo, &catalogInfo, nullptr, nullptr, nullptr);
+
+  if ( (err != noErr) || (((FileInfo*)(&catalogInfo.finderInfo))->fileType == 'TEXT') )
+    *fileType = strdup(APPLICATION_OCTET_STREAM);
+  else
+  {
+    // At this point, we should call the mime service and
+    // see what we can find out?
+    nsresult      rv;
+    nsCOMPtr <nsIURI> tURI;
+    if (NS_SUCCEEDED(NS_NewFileURI(getter_AddRefs(tURI), fs)) && tURI)
+    {
+      nsCOMPtr<nsIMIMEService> mimeFinder (do_GetService(NS_MIMESERVICE_CONTRACTID, &rv));
+      if (NS_SUCCEEDED(rv) && mimeFinder) 
+      {
+        nsAutoCString mimeType;
+        rv = mimeFinder->GetTypeFromURI(tURI, mimeType);
+        if (NS_SUCCEEDED(rv)) 
+        {
+          *fileType = ToNewCString(mimeType);
+          return;
+        }        
+      }
+    }
+
+    // If we hit here, return something...default to this...
+    *fileType = strdup(APPLICATION_OCTET_STREAM);
+  }
+}
+
+//#pragma cplusplus reset
+
+/*
+*	ap_encode_init
+*	--------------
+*	
+*	Setup the encode envirment
+*/
+
+int ap_encode_init( appledouble_encode_object *p_ap_encode_obj,
+                    const char                *fname,
+                    char                      *separator)
+{
+  nsCOMPtr <nsIFile> myFile;
+  NS_NewNativeLocalFile(nsDependentCString(fname), true, getter_AddRefs(myFile));
+  bool exists;
+  if (myFile && NS_SUCCEEDED(myFile->Exists(&exists)) && !exists)
+    return -1;
+
+  nsCOMPtr<nsILocalFileMac> macFile = do_QueryInterface(myFile);
+  nsAutoCString path;
+  macFile->GetNativePath(path);
+
+	memset(p_ap_encode_obj, 0, sizeof(appledouble_encode_object));
+	
+	/*
+	**	Fill out the source file inforamtion.
+	*/	
+  memcpy(p_ap_encode_obj->fname, path.get(), path.Length());
+  p_ap_encode_obj->fname[path.Length()] = '\0';
+	
+	p_ap_encode_obj->boundary = strdup(separator);
+	return noErr;
+}
+
+/*
+**	ap_encode_next
+**	--------------
+**		
+**		return :
+**			noErr	:	everything is ok
+**			errDone	:	when encoding is done.
+**			errors	:	otherwise.
+*/
+int ap_encode_next(
+	appledouble_encode_object* p_ap_encode_obj, 
+	char 	*to_buff, 
+	int32_t 	buff_size, 
+	int32_t* 	real_size)
+{
+	int status;
+	
+	/*
+	** 	install the out buff now.
+	*/
+	p_ap_encode_obj->outbuff     = to_buff;
+	p_ap_encode_obj->s_outbuff 	 = buff_size;
+	p_ap_encode_obj->pos_outbuff = 0;
+	
+	/*
+	**	first copy the outstandind data in the overflow buff to the out buffer. 
+	*/
+	if (p_ap_encode_obj->s_overflow)
+	{
+		status = write_stream(p_ap_encode_obj,
+		                      (const char*)(p_ap_encode_obj->b_overflow),
+		                      p_ap_encode_obj->s_overflow);
+		if (status != noErr)
+			return status;
+				
+		p_ap_encode_obj->s_overflow = 0;
+	}
+
+	/*
+	** go the next processing stage based on the current state. 
+	*/
+	switch (p_ap_encode_obj->state)
+	{
+		case kInit:
+			/*
+			** We are in the  starting position, fill out the header.
+			*/
+			status = fill_apple_mime_header(p_ap_encode_obj); 
+			if (status != noErr)
+				break;					/* some error happens */
+				
+			p_ap_encode_obj->state = kDoingHeaderPortion;
+			status = ap_encode_header(p_ap_encode_obj, true); 
+										/* it is the first time to calling 		*/							
+			if (status == errDone)
+			{
+				p_ap_encode_obj->state = kDoneHeaderPortion;
+			}
+			else
+			{
+				break;					/* we need more work on header portion.	*/
+			}			
+				
+			/*
+			** we are done with the header, so let's go to the data port.
+			*/
+			p_ap_encode_obj->state = kDoingDataPortion;
+			status = ap_encode_data(p_ap_encode_obj, true);		 	
+										/* it is first time call do data portion */
+							
+			if (status == errDone)
+			{
+				p_ap_encode_obj->state  = kDoneDataPortion;
+				status = noErr;
+			}
+			break;
+
+		case kDoingHeaderPortion:
+		
+			status = ap_encode_header(p_ap_encode_obj, false); 			
+										/* continue with the header portion.	*/
+			if (status == errDone)
+			{
+				p_ap_encode_obj->state = kDoneHeaderPortion;
+			}
+			else
+			{
+				break;					/* we need more work on header portion.	*/				
+			}
+			
+			/*
+			** start the data portion.
+			*/
+			p_ap_encode_obj->state = kDoingDataPortion;
+			status = ap_encode_data(p_ap_encode_obj, true); 					
+										/* it is the first time calling 		*/
+			if (status == errDone)
+			{
+				p_ap_encode_obj->state  = kDoneDataPortion;
+				status = noErr;
+			}
+			break;
+
+		case kDoingDataPortion:
+		
+			status = ap_encode_data(p_ap_encode_obj, false); 				
+										/* it is not the first time				*/
+													
+			if (status == errDone)
+			{
+				p_ap_encode_obj->state = kDoneDataPortion;
+				status = noErr;
+			}
+			break;
+
+		case kDoneDataPortion:
+				status = errDone;		/* we are really done.					*/
+
+			break;
+	}
+	
+	*real_size = p_ap_encode_obj->pos_outbuff;
+	return status;
+}
+
+/*
+**	ap_encode_end
+**	-------------
+**
+**	clear the apple encoding.
+*/
+
+int ap_encode_end(
+	appledouble_encode_object *p_ap_encode_obj, 
+	bool is_aborting)
+{
+	/*
+	** clear up the apple doubler.
+	*/
+	if (p_ap_encode_obj == NULL)
+		return noErr;
+
+	if (p_ap_encode_obj->fileId)			/* close the file if it is open.	*/
+    ::FSCloseFork(p_ap_encode_obj->fileId);
+
+	PR_FREEIF(p_ap_encode_obj->boundary);		/* the boundary string.				*/
+	
+	return noErr;
+}
diff --git a/mailnews/compose/src/nsMsgAppleEncode.cpp b/mailnews/compose/src/nsMsgAppleEncode.cpp
new file mode 100644
index 0000000000..27e39a8cda
--- /dev/null
+++ b/mailnews/compose/src/nsMsgAppleEncode.cpp
@@ -0,0 +1,703 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ *
+ *   apple_double_encode.c
+ *	 ---------------------
+ *
+ *    The routines doing the Apple Double Encoding.
+ *		
+ *			2aug95	mym	Created.
+ *		
+ */
+
+#include "nscore.h"
+#include "nsStringGlue.h"
+#include "nsMimeTypes.h"
+#include "prprf.h"
+#include "nsServiceManagerUtils.h"
+#include "nsMsgAppleDouble.h"
+#include "nsMsgAppleCodes.h"
+#include "nsILocalFileMac.h"
+
+/*
+**	Local Functions prototypes.
+*/
+static int output64chunk( appledouble_encode_object* p_ap_encode_obj, 
+				int c1, int c2, int c3, int pads);
+				
+static int to64(appledouble_encode_object* p_ap_encode_obj, 
+				char	*p, 
+				int 	in_size);
+ 
+static int finish64(appledouble_encode_object* p_ap_encode_obj);
+
+
+#define BUFF_LEFT(p)	((p)->s_outbuff - (p)->pos_outbuff)	
+
+/*
+**	write_stream.
+*/
+int write_stream(
+	appledouble_encode_object *p_ap_encode_obj,
+	const char *out_string,
+	int len)
+{	
+	if (p_ap_encode_obj->pos_outbuff + len < p_ap_encode_obj->s_outbuff)
+	{
+		memcpy(p_ap_encode_obj->outbuff + p_ap_encode_obj->pos_outbuff, 
+		       out_string, 
+		       len);
+		p_ap_encode_obj->pos_outbuff += len;
+		return noErr;
+	}
+	else
+	{
+		/*
+		**	If the buff doesn't have enough space, use the overflow buffer then.
+		*/
+		int s_len = p_ap_encode_obj->s_outbuff - p_ap_encode_obj->pos_outbuff;
+		
+		memcpy(p_ap_encode_obj->outbuff + p_ap_encode_obj->pos_outbuff, 
+		       out_string, 
+		       s_len);
+		memcpy(p_ap_encode_obj->b_overflow + p_ap_encode_obj->s_overflow,
+		       out_string + s_len,
+		       p_ap_encode_obj->s_overflow += (len - s_len));
+		p_ap_encode_obj->pos_outbuff += s_len;
+		return errEOB;
+	}
+}
+
+int fill_apple_mime_header(
+	appledouble_encode_object *p_ap_encode_obj)
+{
+	int  status;
+	
+	char tmpstr[266];
+	
+#if 0	
+//	strcpy(tmpstr, "Content-Type: multipart/mixed; boundary=\"-\"\n\n---\n");
+//	status = write_stream(p_ap_encode_env, 
+//						tmpstr,
+//						strlen(tmpstr));
+//	if (status != noErr)
+//		return status;
+
+	PR_snprintf(tmpstr, sizeof(tmpstr),
+			"Content-Type: multipart/appledouble; boundary=\"=\"; name=\"");
+	status = write_stream(p_ap_encode_obj, (const char*)tmpstr, strlen(tmpstr));
+	if (status != noErr)
+		return status;
+		
+	status = write_stream(p_ap_encode_obj,
+						p_ap_encode_obj->fname,
+						strlen(p_ap_encode_obj->fname));
+	if (status != noErr)
+		return status;
+		
+	PR_snprintf(tmpstr, sizeof(tmpstr),
+			"\"\r\nContent-Disposition: inline; filename=\"%s\"\r\n\r\n\r\n--=\r\n",
+			p_ap_encode_obj->fname);
+#endif /* 0 */
+	PR_snprintf(tmpstr, sizeof(tmpstr), "--%s" CRLF, p_ap_encode_obj->boundary);
+	status = write_stream(p_ap_encode_obj, (const char*)tmpstr, strlen(tmpstr));
+	return status;
+} 
+
+int ap_encode_file_infor(
+	appledouble_encode_object *p_ap_encode_obj)
+{
+	ap_header	head;
+	ap_entry 	entries[NUM_ENTRIES];
+	ap_dates 	dates;
+	short 		i;
+	long 		comlen;
+	char 		comment[256];
+	int	 		status;
+    
+    nsCOMPtr <nsIFile> resFile;
+    NS_NewNativeLocalFile(nsDependentCString(p_ap_encode_obj->fname), true,
+                          getter_AddRefs(resFile));
+    if (!resFile)
+        return errFileOpen;
+
+    FSRef ref;
+    nsCOMPtr <nsILocalFileMac> macFile = do_QueryInterface(resFile);
+    if (NS_FAILED(macFile->GetFSRef(&ref)))
+        return errFileOpen;
+
+    FSCatalogInfo catalogInfo;
+    if (::FSGetCatalogInfo(&ref, kFSCatInfoFinderInfo, &catalogInfo, nullptr, nullptr, nullptr) != noErr)
+	{
+		return errFileOpen;
+	}
+
+	/* get a file comment, if possible */
+#if 1
+    // Carbon doesn't support GetWDInfo(). (Bug 555684)
+
+    // not sure why working directories are needed here...
+    comlen = 0;
+#else
+	long 		procID;
+	procID = 0;
+	GetWDInfo(p_ap_encode_obj->vRefNum, &fpb->ioVRefNum, &fpb->ioDirID, &procID);
+	IOParam 	vinfo;
+	memset((void *) &vinfo, '\0', sizeof (vinfo));
+	GetVolParmsInfoBuffer vp;
+	vinfo.ioCompletion  = nil;
+	vinfo.ioVRefNum 	= fpb->ioVRefNum;
+	vinfo.ioBuffer 		= (Ptr) &vp;
+	vinfo.ioReqCount 	= sizeof (vp);
+	comlen = 0;
+	if (PBHGetVolParmsSync((HParmBlkPtr) &vinfo) == noErr &&
+		((vp.vMAttrib >> bHasDesktopMgr) & 1)) 
+	{
+		DTPBRec 	dtp;
+		memset((void *) &dtp, '\0', sizeof (dtp));
+		dtp.ioVRefNum = fpb->ioVRefNum;
+		if (PBDTGetPath(&dtp) == noErr) 
+		{
+			dtp.ioCompletion = nil;
+			dtp.ioDTBuffer = (Ptr) comment;
+			dtp.ioNamePtr  = fpb->ioNamePtr;
+			dtp.ioDirID    = fpb->ioFlParID;
+			if (PBDTGetCommentSync(&dtp) == noErr) 
+				comlen = dtp.ioDTActCount;
+		}
+	}
+#endif /* ! 1 */
+	
+	/* write header */
+//	head.magic = dfork ? APPLESINGLE_MAGIC : APPLEDOUBLE_MAGIC;
+	head.magic   = APPLEDOUBLE_MAGIC;		/* always do apple double */
+	head.version = VERSION;
+	memset(head.fill, '\0', sizeof (head.fill));
+	head.entries = NUM_ENTRIES - 1;
+	status = to64(p_ap_encode_obj,
+					(char *) &head,
+					sizeof (head));				
+	if (status != noErr)
+		return status;
+
+	/* write entry descriptors */
+    nsAutoCString leafname;
+    macFile->GetNativeLeafName(leafname);
+	entries[0].offset = sizeof (head) + sizeof (ap_entry) * head.entries;
+	entries[0].id 	= ENT_NAME;
+    entries[0].length = leafname.Length();
+	entries[1].id 	= ENT_FINFO;
+	entries[1].length = sizeof (FInfo) + sizeof (FXInfo);
+	entries[2].id 	= ENT_DATES;
+	entries[2].length = sizeof (ap_dates);
+	entries[3].id 	= ENT_COMMENT;
+	entries[3].length = comlen;
+	entries[4].id 	= ENT_RFORK;
+    entries[4].length = catalogInfo.rsrcLogicalSize;
+	entries[5].id 	= ENT_DFORK;
+    entries[5].length = catalogInfo.dataLogicalSize;
+
+	/* correct the link in the entries. */
+	for (i = 1; i < NUM_ENTRIES; ++i) 
+	{
+		entries[i].offset = entries[i-1].offset + entries[i-1].length;
+	}
+	status = to64(p_ap_encode_obj,
+					(char *) entries,
+					sizeof (ap_entry) * head.entries); 
+	if (status != noErr)
+		return status;
+
+	/* write name */
+	status = to64(p_ap_encode_obj,
+					(char *) leafname.get(),
+					leafname.Length()); 
+	if (status != noErr)
+		return status;
+	
+	/* write finder info */
+	status = to64(p_ap_encode_obj,
+					(char *) &catalogInfo.finderInfo,
+					sizeof (FInfo));
+	if (status != noErr)
+		return status;
+					  
+	status = to64(p_ap_encode_obj,
+					(char *) &catalogInfo.extFinderInfo,
+					sizeof (FXInfo));
+	if (status != noErr)
+		return status;
+
+	/* write dates */
+    dates.create = catalogInfo.createDate.lowSeconds + CONVERT_TIME;
+    dates.modify = catalogInfo.contentModDate.lowSeconds + CONVERT_TIME;
+    dates.backup = catalogInfo.backupDate.lowSeconds + CONVERT_TIME;
+    dates.access = catalogInfo.accessDate.lowSeconds + CONVERT_TIME;
+	status = to64(p_ap_encode_obj,
+					(char *) &dates,
+					sizeof (ap_dates)); 
+	if (status != noErr)
+		return status;
+	
+	/* write comment */
+	if (comlen)
+	{
+		status = to64(p_ap_encode_obj,
+					comment,
+					comlen * sizeof(char));
+	}
+	/*
+	**	Get some help information on deciding the file type.
+	*/
+    if (((FileInfo*)(&catalogInfo.finderInfo))->fileType == 'TEXT' ||
+        ((FileInfo*)(&catalogInfo.finderInfo))->fileType == 'text')
+	{
+		p_ap_encode_obj->text_file_type = true;
+	}
+	
+	return status;	
+}
+/*
+**	ap_encode_header
+**
+**		encode the file header and the resource fork.
+**
+*/
+int ap_encode_header(
+	appledouble_encode_object* p_ap_encode_obj, 
+	bool    firstime)
+{
+	char   	rd_buff[256];
+    FSIORefNum fileId;
+	OSErr	retval = noErr;
+	int    	status;
+    ByteCount inCount;
+	
+	if (firstime)
+	{
+    PL_strcpy(rd_buff, 
+			"Content-Type: application/applefile\r\nContent-Transfer-Encoding: base64\r\n\r\n");
+		status = write_stream(p_ap_encode_obj, (const char*)rd_buff, strlen(rd_buff));
+		if (status != noErr)
+			return status;
+			
+		status = ap_encode_file_infor(p_ap_encode_obj); 
+		if (status != noErr)
+			return status;
+		
+		/*
+		** preparing to encode the resource fork.
+		*/
+        nsCOMPtr <nsIFile> myFile;
+        NS_NewNativeLocalFile(nsDependentCString(p_ap_encode_obj->fname), true, getter_AddRefs(myFile));
+        if (!myFile)
+            return errFileOpen;
+
+        FSRef ref;
+        nsCOMPtr <nsILocalFileMac> macFile = do_QueryInterface(myFile);
+        if (NS_FAILED(macFile->GetFSRef(&ref)))
+            return errFileOpen;
+
+        HFSUniStr255 forkName;
+        ::FSGetResourceForkName(&forkName);
+        retval = ::FSOpenFork(&ref, forkName.length, forkName.unicode, fsRdPerm, &p_ap_encode_obj->fileId);
+        if (retval != noErr)
+            return retval;
+	}
+
+	fileId = p_ap_encode_obj->fileId;
+	while (retval == noErr)
+	{
+		if (BUFF_LEFT(p_ap_encode_obj) < 400)
+			break;
+			
+        inCount = 0;
+        retval = ::FSReadFork(fileId, fsAtMark, 0, 256, rd_buff, &inCount);
+		if (inCount)
+		{
+			status = to64(p_ap_encode_obj,
+							rd_buff,
+							inCount);
+			if (status != noErr)
+				return status;
+		}
+	}
+	
+	if (retval == eofErr)
+	{
+        ::FSCloseFork(fileId);
+        p_ap_encode_obj->fileId = 0;
+
+		status = finish64(p_ap_encode_obj);
+		if (status != noErr)
+			return status;
+		
+		/*
+		** write out the boundary 
+		*/
+		PR_snprintf(rd_buff, sizeof(rd_buff),
+						CRLF "--%s" CRLF, 
+						p_ap_encode_obj->boundary);
+					
+		status = write_stream(p_ap_encode_obj, (const char*)rd_buff, strlen(rd_buff));
+		if (status == noErr)
+			status = errDone;
+	}
+	return status;
+}
+
+#if 0
+// This is unused for now and Clang complains about that is it is ifdefed out
+static void replace(char *p, int len, char frm, char to)
+{
+	for (; len > 0; len--, p++)
+		if (*p == frm)	*p = to;
+}
+#endif
+
+/* Description of the various file formats and their magic numbers 		*/
+struct magic
+{
+    const char *name;			/* Name of the file format */
+    const char *num;			/* The magic number */
+    int        len;			/* Length (0 means strlen(magicnum)) */
+};
+
+/* The magic numbers of the file formats we know about */
+static struct magic magic[] =
+{
+    { "image/gif", 	"GIF", 			  0 },
+    { "image/jpeg", "\377\330\377",   0 },
+    { "video/mpeg", "\0\0\001\263",	  4 },
+    { "application/postscript", "%!", 0 },
+};
+static int num_magic = MOZ_ARRAY_LENGTH(magic);
+
+static const char *text_type    = TEXT_PLAIN;					/* the text file type. */
+static const char *default_type = APPLICATION_OCTET_STREAM;
+
+
+/*
+ * Determins the format of the file "inputf".  The name
+ * of the file format (or NULL on error) is returned.
+ */
+static const char *magic_look(char *inbuff, int numread)
+{
+    int i, j;
+
+	for (i=0; i<num_magic; i++) 
+	{
+	   	if (magic[i].len == 0) 
+	   		magic[i].len = strlen(magic[i].num);
+	}
+
+    for (i=0; i<num_magic; i++) 
+    {
+		if (numread >= magic[i].len) 
+		{
+	    	for (j=0; j<magic[i].len; j++) 
+	    	{
+				if (inbuff[j] != magic[i].num[j]) break;
+	    	}
+	    	
+	    	if (j == magic[i].len) 
+	    		return magic[i].name;
+		}
+    }
+
+    return default_type;
+}
+/*
+**	ap_encode_data
+**
+**	---------------
+**
+**		encode on the data fork.
+**
+*/
+int ap_encode_data(
+	appledouble_encode_object* p_ap_encode_obj, 
+	bool firstime)
+{
+	char   		rd_buff[256];
+    FSIORefNum fileId;
+	OSErr		retval = noErr;
+    ByteCount in_count;
+	int			status;
+	
+	if (firstime)
+	{	
+		const char* magic_type;
+			
+		/*
+		** preparing to encode the data fork.
+		*/
+        nsCOMPtr <nsIFile> resFile;
+        NS_NewNativeLocalFile(nsDependentCString(p_ap_encode_obj->fname), true,
+                              getter_AddRefs(resFile));
+        if (!resFile)
+            return errFileOpen;
+
+        FSRef ref;
+        nsCOMPtr <nsILocalFileMac> macFile = do_QueryInterface(resFile);
+        if (NS_FAILED(macFile->GetFSRef(&ref)))
+            return errFileOpen;
+
+        HFSUniStr255 forkName;
+        ::FSGetDataForkName(&forkName);
+        retval = ::FSOpenFork(&ref, forkName.length, forkName.unicode, fsRdPerm, &fileId);
+        if (retval != noErr)
+            return retval;
+
+		p_ap_encode_obj->fileId = fileId;
+			
+		
+		if (!p_ap_encode_obj->text_file_type)
+		{	
+      /*
+      **	do a smart check for the file type.
+      */
+      in_count = 0;
+      retval = ::FSReadFork(fileId, fsFromStart, 0, 256, rd_buff, &in_count);
+      magic_type = magic_look(rd_buff, in_count);
+      
+      /* don't forget to rewind the index to start point. */ 
+      ::FSSetForkPosition(fileId, fsFromStart, 0);
+      /* and reset retVal just in case... */
+      if (retval == eofErr)
+        retval = noErr;
+		}
+		else
+		{
+			magic_type = text_type;		/* we already know it is a text type.	*/
+		}
+
+		/*
+		**	the data portion header information.
+		*/
+        nsAutoCString leafName;
+        resFile->GetNativeLeafName(leafName);
+		PR_snprintf(rd_buff, sizeof(rd_buff),
+			"Content-Type: %s; name=\"%s\"" CRLF "Content-Transfer-Encoding: base64" CRLF "Content-Disposition: inline; filename=\"%s\"" CRLF CRLF,
+			magic_type,
+			leafName.get(),
+			leafName.get());
+			
+		status = write_stream(p_ap_encode_obj, (const char*)rd_buff, strlen(rd_buff));
+		if (status != noErr)
+			return status;
+	}
+	
+	while (retval == noErr)
+	{
+		if (BUFF_LEFT(p_ap_encode_obj) < 400)
+			break;
+			
+        in_count = 0;
+        retval = ::FSReadFork(p_ap_encode_obj->fileId, fsAtMark, 0, 256, rd_buff, &in_count);
+		if (in_count)
+		{
+#if 0
+/*			replace(rd_buff, in_count, '\r', '\n');	 						*/
+#endif
+/* ** may be need to do character set conversion here for localization.	**  */		
+			status = to64(p_ap_encode_obj,
+						rd_buff,
+						in_count);
+			if (status != noErr)
+				return status;
+		}
+	}
+	
+	if (retval == eofErr)
+	{
+        ::FSCloseFork(p_ap_encode_obj->fileId);
+        p_ap_encode_obj->fileId = 0;
+
+		status = finish64(p_ap_encode_obj);
+		if (status != noErr)
+			return status;
+		
+		/* write out the boundary 	*/
+		
+		PR_snprintf(rd_buff, sizeof(rd_buff),
+						CRLF "--%s--" CRLF CRLF, 
+						p_ap_encode_obj->boundary);
+	
+		status = write_stream(p_ap_encode_obj, (const char*)rd_buff, strlen(rd_buff));
+	
+		if (status == noErr)				
+			status = errDone;
+	}
+	return status;
+}
+
+static char basis_64[] =
+   "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+
+/* 
+**	convert the stream in the inbuff to 64 format and put it in the out buff.
+**  To make the life easier, the caller will responcable of the cheking of the outbuff's bundary.
+*/
+static int 
+to64(appledouble_encode_object* p_ap_encode_obj, 
+	char	*p, 
+	int 	in_size) 
+{
+	int 	status;
+    int c1, c2, c3, ct;
+    unsigned char *inbuff = (unsigned char*)p;
+    
+	ct = p_ap_encode_obj->ct;			/* the char count left last time. */
+	
+	/*
+	**	 resume the left state of the last conversion.
+	*/
+	switch (p_ap_encode_obj->state64)
+	{
+		case 0:
+			p_ap_encode_obj->c1 = c1 = *inbuff ++;
+			if (--in_size <= 0)
+			{
+				p_ap_encode_obj->state64 = 1;
+				return noErr;
+			}
+			p_ap_encode_obj->c2 = c2 = *inbuff ++;
+			if (--in_size <= 0)
+			{
+				p_ap_encode_obj->state64 = 2;
+				return noErr;
+			}
+			c3 = *inbuff ++;		--in_size;
+			break;
+		case 1:
+			c1 = p_ap_encode_obj->c1;
+			p_ap_encode_obj->c2 = c2 = *inbuff ++;
+			if (--in_size <= 0)
+			{
+				p_ap_encode_obj->state64 = 2;
+				return noErr;
+			}
+			c3 = *inbuff ++;		--in_size;
+			break;
+		case 2:
+			c1 = p_ap_encode_obj->c1;
+			c2 = p_ap_encode_obj->c2;
+			c3 = *inbuff ++;		--in_size;
+			break;
+	}
+	
+    while (in_size >= 0) 
+    {
+    	status = output64chunk(p_ap_encode_obj, 
+    							c1, 
+    							c2, 
+    							c3, 
+    							0);
+    	if (status != noErr)
+    		return status;
+    		
+    	ct += 4;
+        if (ct > 71) 
+        { 
+        	status = write_stream(p_ap_encode_obj, 
+        						CRLF, 
+        						2);
+        	if (status != noErr)
+        		return status;
+        		
+            ct = 0;
+        }
+
+		if (in_size <= 0)
+		{
+			p_ap_encode_obj->state64 = 0;
+			break;
+		}
+		
+		c1 = (int)*inbuff++;
+		if (--in_size <= 0)
+		{
+			p_ap_encode_obj->c1 = c1;
+			p_ap_encode_obj->state64 = 1;
+			break;
+		}
+		c2 = *inbuff++;
+		if (--in_size <= 0)
+		{
+			p_ap_encode_obj->c1 	 = c1;
+			p_ap_encode_obj->c2 	 = c2;
+			p_ap_encode_obj->state64 = 2;
+			break;
+		}
+		c3 = *inbuff++;
+		in_size--;
+    }
+    p_ap_encode_obj->ct = ct;
+    return status;
+}
+
+/*
+** clear the left base64 encodes.
+*/
+static int 
+finish64(appledouble_encode_object* p_ap_encode_obj)
+{
+	int status;
+	
+	switch (p_ap_encode_obj->state64)
+	{
+		case 0:
+			break;
+		case 1:
+			status = output64chunk(p_ap_encode_obj, 
+									p_ap_encode_obj->c1, 
+									0, 
+									0, 
+									2);
+			break;
+		case 2:
+			status = output64chunk(p_ap_encode_obj, 
+									p_ap_encode_obj->c1, 
+									p_ap_encode_obj->c2, 
+									0, 
+									1);
+			break;
+	}
+	status = write_stream(p_ap_encode_obj, CRLF, 2);
+	p_ap_encode_obj->state64 = 0;
+	p_ap_encode_obj->ct	  	 = 0;
+	return status;
+}
+
+static int output64chunk(
+	appledouble_encode_object* p_ap_encode_obj, 
+	int c1, int c2, int c3, int pads)
+{
+	char tmpstr[32];
+	char *p = tmpstr;
+	
+    *p++ = basis_64[c1>>2];
+    *p++ = basis_64[((c1 & 0x3)<< 4) | ((c2 & 0xF0) >> 4)];
+    if (pads == 2) 
+    {
+        *p++ = '=';
+        *p++ = '=';
+    } 
+    else if (pads) 
+    {
+        *p++ = basis_64[((c2 & 0xF) << 2) | ((c3 & 0xC0) >>6)];
+        *p++ = '=';
+    } 
+    else 
+    {
+        *p++ = basis_64[((c2 & 0xF) << 2) | ((c3 & 0xC0) >>6)];
+        *p++ = basis_64[c3 & 0x3F];
+    }
+    return write_stream(p_ap_encode_obj, (const char*) tmpstr, p-tmpstr);
+}
diff --git a/mailnews/import/build/moz.build b/mailnews/import/build/moz.build
index 58814a6940..e8ac0751f5 100644
--- a/mailnews/import/build/moz.build
+++ b/mailnews/import/build/moz.build
@@ -35,6 +35,13 @@ LOCAL_INCLUDES += [
     '../vcard/src',
 ]
 
+if CONFIG['MOZ_WIDGET_TOOLKIT'] == 'cocoa':
+    LOCAL_INCLUDES += [
+        '../applemail/src',
+    ]
+    OS_LIBS += CONFIG['TK_LIBS']
+    OS_LIBS += ['-framework Cocoa']
+
 if CONFIG['OS_ARCH'] == 'WINNT':
     LOCAL_INCLUDES += [
     ]