1 files changed, 762 insertions, 0 deletions

diff --git a/mailnews/base/src/nsMessengerUnixIntegration.cpp b/mailnews/base/src/nsMessengerUnixIntegration.cpp
new file mode 100644
index 000000000..0e4dd1405
--- /dev/null
+++ b/mailnews/base/src/nsMessengerUnixIntegration.cpp
@@ -0,0 +1,762 @@
+/* -*- 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 "nsMessengerUnixIntegration.h"
+#include "nsIMsgAccountManager.h"
+#include "nsIMsgMailSession.h"
+#include "nsIMsgIncomingServer.h"
+#include "nsIMsgIdentity.h"
+#include "nsIMsgAccount.h"
+#include "nsIMsgFolder.h"
+#include "nsIMsgWindow.h"
+#include "nsCOMPtr.h"
+#include "nsMsgBaseCID.h"
+#include "nsMsgFolderFlags.h"
+#include "nsDirectoryServiceDefs.h"
+#include "nsAppDirectoryServiceDefs.h"
+#include "nsIDirectoryService.h"
+#include "nsIWindowWatcher.h"
+#include "nsIWindowMediator.h"
+#include "mozIDOMWindow.h"
+#include "nsPIDOMWindow.h"
+#include "nsIDocShell.h"
+#include "nsIBaseWindow.h"
+#include "MailNewsTypes.h"
+#include "nsIMessengerWindowService.h"
+#include "prprf.h"
+#include "nsIWeakReference.h"
+#include "nsIStringBundle.h"
+#include "nsIAlertsService.h"
+#include "nsIPrefService.h"
+#include "nsIPrefBranch.h"
+#include "nsISupportsPrimitives.h"
+#include "nsIMsgDatabase.h"
+#include "nsIMsgHdr.h"
+#include "nsAutoPtr.h"
+#include "prmem.h"
+#include "nsComponentManagerUtils.h"
+#include "nsServiceManagerUtils.h"
+#include "nsIWeakReferenceUtils.h"
+
+#include "nsNativeCharsetUtils.h"
+#include "nsToolkitCompsCID.h"
+#include "nsMsgUtils.h"
+#include "msgCore.h"
+#include "nsCOMArray.h"
+#include "nsIMutableArray.h"
+#include "nsArrayUtils.h"
+#include "nsMemory.h"
+#include "mozilla/Services.h"
+#include "mozilla/mailnews/MimeHeaderParser.h"
+
+#define ALERT_CHROME_URL "chrome://messenger/content/newmailalert.xul"
+#define NEW_MAIL_ALERT_ICON "chrome://messenger/skin/icons/new-mail-alert.png"
+#define SHOW_ALERT_PREF "mail.biff.show_alert"
+#define SHOW_ALERT_PREVIEW_LENGTH "mail.biff.alert.preview_length"
+#define SHOW_ALERT_PREVIEW_LENGTH_DEFAULT 40
+#define SHOW_ALERT_PREVIEW "mail.biff.alert.show_preview"
+#define SHOW_ALERT_SENDER  "mail.biff.alert.show_sender"
+#define SHOW_ALERT_SUBJECT "mail.biff.alert.show_subject"
+#define SHOW_ALERT_SYSTEM  "mail.biff.use_system_alert"
+
+using namespace mozilla::mailnews;
+
+static void openMailWindow(const nsACString& aFolderUri)
+{
+  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 (!aFolderUri.IsEmpty())
+    {
+      nsCOMPtr<nsIMsgWindowCommands> windowCommands;
+      topMostMsgWindow->GetWindowCommands(getter_AddRefs(windowCommands));
+      if (windowCommands)
+        windowCommands->SelectFolder(aFolderUri);
+    }
+
+    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", nsCString(aFolderUri).get(), nsMsgKey_None);
+  }
+}
+
+nsMessengerUnixIntegration::nsMessengerUnixIntegration()
+{
+  mBiffStateAtom = MsgGetAtom("BiffState");
+  mNewMailReceivedAtom = MsgGetAtom("NewMailReceived");
+  mAlertInProgress = false;
+  mFoldersWithNewMail = do_CreateInstance(NS_ARRAY_CONTRACTID);
+}
+
+NS_IMPL_ISUPPORTS(nsMessengerUnixIntegration, nsIFolderListener, nsIObserver,
+                   nsIMessengerOSIntegration, nsIUrlListener)
+
+nsresult
+nsMessengerUnixIntegration::Init()
+{
+  nsresult rv;
+
+  nsCOMPtr<nsIMsgMailSession> mailSession = do_GetService(NS_MSGMAILSESSION_CONTRACTID, &rv);
+  NS_ENSURE_SUCCESS(rv,rv);
+  return mailSession->AddFolderListener(this, nsIFolderListener::intPropertyChanged);
+}
+
+NS_IMETHODIMP
+nsMessengerUnixIntegration::OnItemPropertyChanged(nsIMsgFolder *, nsIAtom *, char const *, char const *)
+{
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMessengerUnixIntegration::OnItemUnicharPropertyChanged(nsIMsgFolder *, nsIAtom *, const char16_t *, const char16_t *)
+{
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMessengerUnixIntegration::OnItemRemoved(nsIMsgFolder *, nsISupports *)
+{
+  return NS_OK;
+}
+
+nsresult nsMessengerUnixIntegration::GetStringBundle(nsIStringBundle **aBundle)
+{
+  NS_ENSURE_ARG_POINTER(aBundle);
+  nsCOMPtr<nsIStringBundleService> bundleService =
+    mozilla::services::GetStringBundleService();
+  NS_ENSURE_TRUE(bundleService, NS_ERROR_UNEXPECTED);
+  nsCOMPtr<nsIStringBundle> bundle;
+  bundleService->CreateBundle("chrome://messenger/locale/messenger.properties",
+                              getter_AddRefs(bundle));
+  bundle.swap(*aBundle);
+  return NS_OK;
+}
+
+bool
+nsMessengerUnixIntegration::BuildNotificationTitle(nsIMsgFolder *aFolder, nsIStringBundle *aBundle, nsString &aTitle)
+{
+  nsString accountName;
+  aFolder->GetPrettiestName(accountName);
+
+  int32_t numNewMessages = 0;
+  aFolder->GetNumNewMessages(true, &numNewMessages);
+
+  if (!numNewMessages)
+    return false;
+
+  nsAutoString numNewMsgsText;
+  numNewMsgsText.AppendInt(numNewMessages);
+
+  const char16_t *formatStrings[] =
+  {
+    accountName.get(), numNewMsgsText.get()
+  };
+
+  aBundle->FormatStringFromName(numNewMessages == 1 ?
+                                  u"newMailNotification_message" :
+                                  u"newMailNotification_messages",
+                                formatStrings, 2, getter_Copies(aTitle));
+  return true;
+}
+
+/* This comparator lets us sort an nsCOMArray of nsIMsgDBHdr's by
+ * their dateInSeconds attributes in ascending order.
+ */
+static int
+nsMsgDbHdrTimestampComparator(nsIMsgDBHdr *aElement1,
+                              nsIMsgDBHdr *aElement2,
+                              void *aData)
+{
+  uint32_t aElement1Timestamp;
+  nsresult rv = aElement1->GetDateInSeconds(&aElement1Timestamp);
+  if (NS_FAILED(rv))
+    return 0;
+
+  uint32_t aElement2Timestamp;
+  rv = aElement2->GetDateInSeconds(&aElement2Timestamp);
+  if (NS_FAILED(rv))
+    return 0;
+
+  return aElement1Timestamp - aElement2Timestamp;
+}
+
+
+bool
+nsMessengerUnixIntegration::BuildNotificationBody(nsIMsgDBHdr *aHdr,
+                                                  nsIStringBundle *aBundle,
+                                                  nsString &aBody)
+{
+  nsAutoString alertBody;
+
+  bool showPreview = true;
+  bool showSubject = true;
+  bool showSender = true;
+  int32_t previewLength = SHOW_ALERT_PREVIEW_LENGTH_DEFAULT;
+
+  nsCOMPtr<nsIPrefBranch> prefBranch(do_GetService(NS_PREFSERVICE_CONTRACTID));
+  if (!prefBranch)
+    return false;
+
+  prefBranch->GetBoolPref(SHOW_ALERT_PREVIEW, &showPreview);
+  prefBranch->GetBoolPref(SHOW_ALERT_SENDER, &showSender);
+  prefBranch->GetBoolPref(SHOW_ALERT_SUBJECT, &showSubject);
+  prefBranch->GetIntPref(SHOW_ALERT_PREVIEW_LENGTH, &previewLength);
+
+  nsCOMPtr<nsIMsgFolder> folder;
+  aHdr->GetFolder(getter_AddRefs(folder));
+
+  if (!folder)
+    return false;
+
+  nsCString msgURI;
+  folder->GetUriForMsg(aHdr, msgURI);
+
+  bool localOnly;
+
+  size_t msgURIIndex = mFetchingURIs.IndexOf(msgURI);
+  if (msgURIIndex == mFetchingURIs.NoIndex)
+  {
+    localOnly = false;
+    mFetchingURIs.AppendElement(msgURI);
+  }
+  else
+    localOnly = true;
+
+  nsMsgKey messageKey;
+  if (NS_FAILED(aHdr->GetMessageKey(&messageKey)))
+    return false;
+
+  bool asyncResult = false;
+  nsresult rv = folder->FetchMsgPreviewText(&messageKey, 1,
+                                            localOnly, this,
+                                            &asyncResult);
+  // If we're still waiting on getting the message previews,
+  // bail early.  We'll come back later when the async operation
+  // finishes.
+  if (NS_FAILED(rv) || asyncResult)
+    return false;
+
+  // If we got here, that means that we've retrieved the message preview,
+  // so we can stop tracking it with our mFetchingURIs array.
+  if (msgURIIndex != mFetchingURIs.NoIndex)
+    mFetchingURIs.RemoveElementAt(msgURIIndex);
+
+  nsCString utf8previewString;
+  if (showPreview &&
+      NS_FAILED(aHdr->GetStringProperty("preview", getter_Copies(utf8previewString))))
+    return false;
+
+  // need listener that mailbox is remote such as IMAP
+  // to generate preview message
+  nsString previewString;
+  CopyUTF8toUTF16(utf8previewString, previewString);
+
+  nsString subject;
+  if (showSubject && NS_FAILED(aHdr->GetMime2DecodedSubject(subject)))
+    return false;
+
+  nsString author;
+  if (showSender)
+  {
+    nsString fullHeader;
+    if (NS_FAILED(aHdr->GetMime2DecodedAuthor(fullHeader)))
+      return false;
+
+    ExtractName(DecodedHeader(fullHeader), author);
+  }
+
+  if (showSubject && showSender)
+  {
+    nsString msgTitle;
+    const char16_t *formatStrings[] =
+    {
+      subject.get(), author.get()
+    };
+    aBundle->FormatStringFromName(u"newMailNotification_messagetitle",
+        formatStrings, 2, getter_Copies(msgTitle));
+    alertBody.Append(msgTitle);
+  }
+  else if (showSubject)
+    alertBody.Append(subject);
+  else if (showSender)
+    alertBody.Append(author);
+
+  if (showPreview && (showSubject || showSender))
+  {
+    alertBody.AppendLiteral("\n");
+  }
+
+  if (showPreview)
+    alertBody.Append(StringHead(previewString, previewLength));
+
+  if (alertBody.IsEmpty())
+    return false;
+
+  aBody.Assign(alertBody);
+  return true;
+}
+
+nsresult nsMessengerUnixIntegration::ShowAlertMessage(const nsAString& aAlertTitle, const nsAString& aAlertText, const nsACString& aFolderURI)
+{
+  nsresult rv;
+  // if we are already in the process of showing an alert, don't try to show another....
+  if (mAlertInProgress)
+    return NS_OK;
+
+  mAlertInProgress = true;
+
+  nsCOMPtr<nsIPrefBranch> prefBranch(do_GetService(NS_PREFSERVICE_CONTRACTID, &rv));
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  // determine if we should use libnotify or the built-in alert system
+  bool useSystemAlert = true;
+  prefBranch->GetBoolPref(SHOW_ALERT_SYSTEM, &useSystemAlert);
+
+  if (useSystemAlert) {
+    nsCOMPtr<nsIAlertsService> alertsService(do_GetService(NS_SYSTEMALERTSERVICE_CONTRACTID, &rv));
+    if (NS_SUCCEEDED(rv)) {
+      rv = alertsService->ShowAlertNotification(NS_LITERAL_STRING(NEW_MAIL_ALERT_ICON),
+                                                aAlertTitle,
+                                                aAlertText,
+                                                false,
+                                                NS_ConvertASCIItoUTF16(aFolderURI),
+                                                this,
+                                                EmptyString(),
+                                                NS_LITERAL_STRING("auto"),
+                                                EmptyString(),
+                                                EmptyString(),
+                                                nullptr,
+                                                false,
+                                                false);
+      if (NS_SUCCEEDED(rv))
+        return rv;
+    }
+  }
+  AlertFinished();
+  rv = ShowNewAlertNotification(false);
+
+  if (NS_FAILED(rv)) // go straight to showing the system tray icon.
+    AlertFinished();
+
+  return rv;
+}
+
+// Opening Thunderbird's new mail alert notification window for not supporting libnotify
+// aUserInitiated --> true if we are opening the alert notification in response to a user action
+//                    like clicking on the biff icon
+nsresult nsMessengerUnixIntegration::ShowNewAlertNotification(bool aUserInitiated)
+{
+
+  nsresult rv;
+
+  // if we are already in the process of showing an alert, don't try to show another....
+  if (mAlertInProgress)
+    return NS_OK;
+
+  nsCOMPtr<nsIMutableArray> argsArray = do_CreateInstance(NS_ARRAY_CONTRACTID);
+  if (!argsArray)
+    return NS_ERROR_FAILURE;
+
+  // pass in the array of folders with unread messages
+  nsCOMPtr<nsISupportsInterfacePointer> ifptr = do_CreateInstance(NS_SUPPORTS_INTERFACE_POINTER_CONTRACTID, &rv);
+  NS_ENSURE_SUCCESS(rv, rv);
+  ifptr->SetData(mFoldersWithNewMail);
+  ifptr->SetDataIID(&NS_GET_IID(nsIArray));
+  argsArray->AppendElement(ifptr, false);
+
+  // pass in the observer
+  ifptr = do_CreateInstance(NS_SUPPORTS_INTERFACE_POINTER_CONTRACTID, &rv);
+  NS_ENSURE_SUCCESS(rv, rv);
+  nsCOMPtr <nsISupports> supports = do_QueryInterface(static_cast<nsIMessengerOSIntegration*>(this));
+  ifptr->SetData(supports);
+  ifptr->SetDataIID(&NS_GET_IID(nsIObserver));
+  argsArray->AppendElement(ifptr, false);
+
+  // pass in the animation flag
+  nsCOMPtr<nsISupportsPRBool> scriptableUserInitiated (do_CreateInstance(NS_SUPPORTS_PRBOOL_CONTRACTID, &rv));
+  NS_ENSURE_SUCCESS(rv, rv);
+  scriptableUserInitiated->SetData(aUserInitiated);
+  argsArray->AppendElement(scriptableUserInitiated, false);
+
+  nsCOMPtr<nsIWindowWatcher> wwatch(do_GetService(NS_WINDOWWATCHER_CONTRACTID));
+  nsCOMPtr<mozIDOMWindowProxy> newWindow;
+
+  mAlertInProgress = true;
+  rv = wwatch->OpenWindow(0, ALERT_CHROME_URL, "_blank",
+                          "chrome,dialog=yes,titlebar=no,popup=yes", argsArray,
+                          getter_AddRefs(newWindow));
+
+  if (NS_FAILED(rv))
+    AlertFinished();
+
+  return rv;
+}
+
+nsresult nsMessengerUnixIntegration::AlertFinished()
+{
+  mAlertInProgress = false;
+  return NS_OK;
+}
+
+nsresult nsMessengerUnixIntegration::AlertClicked()
+{
+  nsCString folderURI;
+  GetFirstFolderWithNewMail(folderURI);
+  openMailWindow(folderURI);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMessengerUnixIntegration::Observe(nsISupports* aSubject, const char* aTopic, const char16_t* aData)
+{
+  if (strcmp(aTopic, "alertfinished") == 0)
+    return AlertFinished();
+  if (strcmp(aTopic, "alertclickcallback") == 0)
+    return AlertClicked();
+
+  return NS_OK;
+}
+
+void nsMessengerUnixIntegration::FillToolTipInfo()
+{
+  nsresult rv;
+  nsCOMPtr<nsIPrefBranch> prefBranch(do_GetService(NS_PREFSERVICE_CONTRACTID, &rv));
+  NS_ENSURE_SUCCESS(rv,);
+
+  bool showAlert = true;
+  prefBranch->GetBoolPref(SHOW_ALERT_PREF, &showAlert);
+  if (!showAlert)
+    return;
+
+  nsCString folderUri;
+  GetFirstFolderWithNewMail(folderUri);
+
+  uint32_t count = 0;
+  NS_ENSURE_SUCCESS_VOID(mFoldersWithNewMail->GetLength(&count));
+
+  nsCOMPtr<nsIWeakReference> weakReference;
+  nsCOMPtr<nsIMsgFolder> folder = nullptr;
+  nsCOMPtr<nsIMsgFolder> folderWithNewMail = nullptr;
+
+  uint32_t i;
+  for (i = 0; i < count && !folderWithNewMail; i++)
+  {
+    weakReference = do_QueryElementAt(mFoldersWithNewMail, i);
+    folder = do_QueryReferent(weakReference);
+    folder->GetChildWithURI(folderUri, true, true,
+                            getter_AddRefs(folderWithNewMail));
+  }
+
+  if (folder && folderWithNewMail)
+  {
+    nsCOMPtr<nsIStringBundle> bundle;
+    GetStringBundle(getter_AddRefs(bundle));
+
+    if (!bundle)
+      return;
+
+    // Create the notification title
+    nsString alertTitle;
+    if (!BuildNotificationTitle(folder, bundle, alertTitle))
+      return;
+
+    // Let's get the new mail for this folder
+    nsCOMPtr<nsIMsgDatabase> db;
+    if (NS_FAILED(folderWithNewMail->GetMsgDatabase(getter_AddRefs(db))))
+      return;
+
+    uint32_t numNewKeys = 0;
+    uint32_t *newMessageKeys;
+    db->GetNewList(&numNewKeys, &newMessageKeys);
+
+    // If we had new messages, we *should* have new keys, but we'll
+    // check just in case.
+    if (numNewKeys <= 0) {
+      NS_Free(newMessageKeys);
+      return;
+    }
+
+    // Find the rootFolder that folder belongs to, and find out
+    // what MRUTime it maps to.  Assign this to lastMRUTime.
+    uint32_t lastMRUTime = 0;
+    if (NS_FAILED(GetMRUTimestampForFolder(folder, &lastMRUTime)))
+      lastMRUTime = 0;
+
+    // Next, add the new message headers to an nsCOMArray.  We
+    // only add message headers that are newer than lastMRUTime.
+    nsCOMArray<nsIMsgDBHdr> newMsgHdrs;
+    for (unsigned int i = 0; i < numNewKeys; ++i) {
+      nsCOMPtr<nsIMsgDBHdr> hdr;
+      if (NS_FAILED(db->GetMsgHdrForKey(newMessageKeys[i], getter_AddRefs(hdr))))
+        continue;
+
+      uint32_t dateInSeconds = 0;
+      hdr->GetDateInSeconds(&dateInSeconds);
+
+      if (dateInSeconds > lastMRUTime)
+        newMsgHdrs.AppendObject(hdr);
+
+    }
+
+    // At this point, we don't need newMessageKeys any more,
+    // so let's free it.
+    NS_Free(newMessageKeys);
+
+    // If we didn't happen to add any message headers, bail out
+    if (!newMsgHdrs.Count())
+      return;
+
+    // Sort the message headers by dateInSeconds, in ascending
+    // order
+    newMsgHdrs.Sort(nsMsgDbHdrTimestampComparator, nullptr);
+
+    nsString alertBody;
+
+    // Build the body text of the notification.
+    if (!BuildNotificationBody(newMsgHdrs[0], bundle, alertBody))
+      return;
+
+    // Show the notification
+    ShowAlertMessage(alertTitle, alertBody, EmptyCString());
+
+    // Find the last, and therefore newest message header
+    // in our nsCOMArray
+    nsCOMPtr<nsIMsgDBHdr> lastMsgHdr = newMsgHdrs[newMsgHdrs.Count() - 1];
+
+    uint32_t dateInSeconds = 0;
+    if (NS_FAILED(lastMsgHdr->GetDateInSeconds(&dateInSeconds)))
+      return;
+
+    // Write the newest message timestamp to the appropriate
+    // mapping in our hashtable of MRUTime's.
+    PutMRUTimestampForFolder(folder, dateInSeconds);
+  } // if we got a folder
+}
+
+// Get the first top level folder which we know has new mail, then enumerate over
+// all the subfolders looking for the first real folder with new mail.
+// Return the folderURI for that folder.
+nsresult nsMessengerUnixIntegration::GetFirstFolderWithNewMail(nsACString& aFolderURI)
+{
+  NS_ENSURE_TRUE(mFoldersWithNewMail, NS_ERROR_FAILURE);
+
+  nsCOMPtr<nsIMsgFolder> folder;
+  nsCOMPtr<nsIWeakReference> weakReference;
+
+  uint32_t count = 0;
+  nsresult rv = mFoldersWithNewMail->GetLength(&count);
+  if (NS_FAILED(rv) || !count)  // kick out if we don't have any folders with new mail
+    return NS_OK;
+
+  uint32_t i;
+  for(i = 0; i < count; i++)
+  {
+    weakReference = do_QueryElementAt(mFoldersWithNewMail, i);
+    folder = do_QueryReferent(weakReference);
+
+    // We only want to find folders which haven't been notified
+    // yet.  This is specific to Thunderbird.  In Seamonkey, we
+    // just return 0, and we don't care about timestamps anymore.
+    uint32_t lastMRUTime = 0;
+    rv = GetMRUTimestampForFolder(folder, &lastMRUTime);
+    if (NS_FAILED(rv))
+      lastMRUTime = 0;
+
+    if (!folder)
+      continue;
+    // enumerate over the folders under this root folder till we find one with new mail....
+    nsCOMPtr<nsIMsgFolder> msgFolder;
+    nsCOMPtr<nsIArray> allFolders;
+    rv = folder->GetDescendants(getter_AddRefs(allFolders));
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    uint32_t subfolderCount = 0;
+    allFolders->GetLength(&subfolderCount);
+    uint32_t j;
+    for (j = 0; j < subfolderCount; j++)
+    {
+      nsCOMPtr<nsIMsgFolder> msgFolder = do_QueryElementAt(allFolders, j);
+
+      if (!msgFolder)
+        continue;
+
+      uint32_t flags;
+      rv = msgFolder->GetFlags(&flags);
+
+      if (NS_FAILED(rv))
+        continue;
+
+      // Unless we're dealing with an Inbox, we don't care
+      // about Drafts, Queue, SentMail, Template, or Junk folders
+      if (!(flags & nsMsgFolderFlags::Inbox) &&
+           (flags & (nsMsgFolderFlags::SpecialUse & ~nsMsgFolderFlags::Inbox)))
+        continue;
+
+      nsCString folderURI;
+      msgFolder->GetURI(folderURI);
+      bool hasNew = false;
+      rv = msgFolder->GetHasNewMessages(&hasNew);
+
+      if (NS_FAILED(rv))
+        continue;
+
+      // Grab the MRUTime property from the folder
+      nsCString dateStr;
+      msgFolder->GetStringProperty(MRU_TIME_PROPERTY, dateStr);
+      uint32_t MRUTime = (uint32_t) dateStr.ToInteger(&rv, 10);
+      if (NS_FAILED(rv))
+        MRUTime = 0;
+
+      if (hasNew && MRUTime > lastMRUTime)
+      {
+        rv = msgFolder->GetURI(aFolderURI);
+        NS_ENSURE_SUCCESS(rv, rv);
+        return NS_OK;
+      }
+    }  // if we have more potential folders to enumerate
+  }
+
+  // If we got here, then something when pretty wrong.
+  return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+nsMessengerUnixIntegration::OnItemPropertyFlagChanged(nsIMsgDBHdr *item, nsIAtom *property, uint32_t oldFlag, uint32_t newFlag)
+{
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMessengerUnixIntegration::OnItemAdded(nsIMsgFolder *, nsISupports *)
+{
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMessengerUnixIntegration::OnItemBoolPropertyChanged(nsIMsgFolder *aItem,
+                                                         nsIAtom *aProperty,
+                                                         bool aOldValue,
+                                                         bool aNewValue)
+{
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMessengerUnixIntegration::OnItemEvent(nsIMsgFolder *, nsIAtom *)
+{
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMessengerUnixIntegration::OnItemIntPropertyChanged(nsIMsgFolder *aItem, nsIAtom *aProperty, int64_t aOldValue, int64_t aNewValue)
+{
+  nsCString atomName;
+  // if we got new mail show an icon in the system tray
+  if (mBiffStateAtom == aProperty && mFoldersWithNewMail)
+  {
+    nsCOMPtr<nsIWeakReference> weakFolder = do_GetWeakReference(aItem);
+    uint32_t indexInNewArray;
+    nsresult rv = mFoldersWithNewMail->IndexOf(0, weakFolder, &indexInNewArray);
+    bool folderFound = NS_SUCCEEDED(rv);
+
+    if (aNewValue == nsIMsgFolder::nsMsgBiffState_NewMail)
+    {
+      // only show a system tray icon iff we are performing biff
+      // (as opposed to the user getting new mail)
+      bool performingBiff = false;
+      nsCOMPtr<nsIMsgIncomingServer> server;
+      aItem->GetServer(getter_AddRefs(server));
+      if (server)
+        server->GetPerformingBiff(&performingBiff);
+      if (!performingBiff)
+        return NS_OK; // kick out right now...
+
+      if (!folderFound)
+        mFoldersWithNewMail->AppendElement(weakFolder, false);
+      // now regenerate the tooltip
+      FillToolTipInfo();
+    }
+    else if (aNewValue == nsIMsgFolder::nsMsgBiffState_NoMail)
+    {
+      if (folderFound) {
+        mFoldersWithNewMail->RemoveElementAt(indexInNewArray);
+      }
+    }
+  } // if the biff property changed
+  else if (mNewMailReceivedAtom == aProperty)
+  {
+    FillToolTipInfo();
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMessengerUnixIntegration::OnStartRunningUrl(nsIURI *aUrl)
+{
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMessengerUnixIntegration::OnStopRunningUrl(nsIURI *aUrl, nsresult aExitCode)
+{
+  if (NS_SUCCEEDED(aExitCode))
+    // preview fetch is done.
+    FillToolTipInfo();
+  return NS_OK;
+}
+
+nsresult
+nsMessengerUnixIntegration::GetMRUTimestampForFolder(nsIMsgFolder *aFolder,
+                                                     uint32_t *aLastMRUTime)
+{
+  nsCOMPtr<nsIMsgFolder> rootFolder = nullptr;
+  nsresult rv = aFolder->GetRootFolder(getter_AddRefs(rootFolder));
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsCString rootFolderURI;
+  rootFolder->GetURI(rootFolderURI);
+  if (!mLastMRUTimes.Get(rootFolderURI, aLastMRUTime))
+    aLastMRUTime = 0;
+
+  return NS_OK;
+}
+
+nsresult
+nsMessengerUnixIntegration::PutMRUTimestampForFolder(nsIMsgFolder *aFolder,
+                                                     uint32_t aLastMRUTime)
+{
+  nsresult rv;
+  nsCOMPtr<nsIMsgFolder> rootFolder = nullptr;
+  rv = aFolder->GetRootFolder(getter_AddRefs(rootFolder));
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsCString rootFolderURI;
+  rootFolder->GetURI(rootFolderURI);
+  mLastMRUTimes.Put(rootFolderURI, aLastMRUTime);
+
+  return NS_OK;
+}