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/* -*- 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/. */
/* This file contains the js functions necessary to implement view navigation within the 3 pane. */
Components.utils.import("resource:///modules/folderUtils.jsm");
Components.utils.import("resource://gre/modules/Services.jsm");
function GetSubFoldersInFolderPaneOrder(folder)
{
var subFolders = folder.subFolders;
var msgFolders = Array();
// get all the subfolders
while (subFolders.hasMoreElements()) {
msgFolders[msgFolders.length] =
subFolders.getNext().QueryInterface(Components.interfaces.nsIMsgFolder);
}
function compareFolderSortKey(folder1, folder2) {
return folder1.compareSortKeys(folder2);
}
// sort the subfolders
msgFolders.sort(compareFolderSortKey);
return msgFolders;
}
function FindNextChildFolder(aParent, aAfter)
{
// Search the child folders of aParent for unread messages
// but in the case that we are working up from the current folder
// we need to skip up to and including the current folder
// we skip the current folder in case a mail view is hiding unread messages
if (aParent.getNumUnread(true) > 0) {
var subFolders = GetSubFoldersInFolderPaneOrder(aParent);
var i = 0;
var folder = null;
// Skip folders until after the specified child
while (folder != aAfter)
folder = subFolders[i++];
const nsMsgFolderFlags = Components.interfaces.nsMsgFolderFlags;
let ignoreFlags = nsMsgFolderFlags.Trash | nsMsgFolderFlags.SentMail |
nsMsgFolderFlags.Drafts | nsMsgFolderFlags.Queue |
nsMsgFolderFlags.Templates | nsMsgFolderFlags.Junk;
while (i < subFolders.length) {
folder = subFolders[i++];
// If there is unread mail in the trash, sent, drafts, unsent messages
// templates or junk special folder,
// we ignore it when doing cross folder "next" navigation.
if (!folder.isSpecialFolder(ignoreFlags, true)) {
if (folder.getNumUnread(false) > 0)
return folder;
folder = FindNextChildFolder(folder, null);
if (folder)
return folder;
}
}
}
return null;
}
function FindNextFolder()
{
// look for the next folder, this will only look on the current account
// and below us, in the folder pane
// note use of gDBView restricts this function to message folders
// otherwise you could go next unread from a server
var folder = FindNextChildFolder(gDBView.msgFolder, null);
if (folder)
return folder;
// didn't find folder in children
// go up to the parent, and start at the folder after the current one
// unless we are at a server, in which case bail out.
for (folder = gDBView.msgFolder; !folder.isServer; ) {
var parent = folder.parent;
folder = FindNextChildFolder(parent, folder);
if (folder)
return folder;
// none at this level after the current folder. go up.
folder = parent;
}
// nothing in the current account, start with the next account (below)
// and try until we hit the bottom of the folder pane
// start at the account after the current account
var rootFolders = GetRootFoldersInFolderPaneOrder();
for (var i = 0; i < rootFolders.length; i++) {
if (rootFolders[i].URI == gDBView.msgFolder.server.serverURI)
break;
}
for (var j = i + 1; j < rootFolders.length; j++) {
folder = FindNextChildFolder(rootFolders[j], null);
if (folder)
return folder;
}
// if nothing from the current account down to the bottom
// (of the folder pane), start again at the top.
for (j = 0; j <= i; j++) {
folder = FindNextChildFolder(rootFolders[j], null);
if (folder)
return folder;
}
return null;
}
function GetRootFoldersInFolderPaneOrder()
{
let accounts = allAccountsSorted(false);
let serversMsgFolders = [];
for (let account of accounts)
serversMsgFolders.push(account.incomingServer.rootMsgFolder);
return serversMsgFolders;
}
function CrossFolderNavigation(type)
{
// do cross folder navigation for next unread message/thread and message history
if (type != nsMsgNavigationType.nextUnreadMessage &&
type != nsMsgNavigationType.nextUnreadThread &&
type != nsMsgNavigationType.forward &&
type != nsMsgNavigationType.back)
return;
if (type == nsMsgNavigationType.nextUnreadMessage ||
type == nsMsgNavigationType.nextUnreadThread)
{
var nextMode = Services.prefs.getIntPref("mailnews.nav_crosses_folders");
// 0: "next" goes to the next folder, without prompting
// 1: "next" goes to the next folder, and prompts (the default)
// 2: "next" does nothing when there are no unread messages
// not crossing folders, don't find next
if (nextMode == 2)
return;
var folder = FindNextFolder();
if (folder && (gDBView.msgFolder.URI != folder.URI))
{
if (nextMode == 1)
{
let promptText = document.getElementById("bundle_messenger")
.getFormattedString("advanceNextPrompt",
[folder.name], 1);
if (Services.prompt.confirmEx(window, null, promptText,
Services.prompt.STD_YES_NO_BUTTONS,
null, null, null, null, {}))
return;
}
gFolderDisplay.pushNavigation(type, true);
SelectFolder(folder.URI);
}
}
else
{
// if no message is loaded, relPos should be 0, to
// go back to the previously loaded message
var relPos = (type == nsMsgNavigationType.forward)
? 1 : ((gMessageDisplay.displayedMessage) ? -1 : 0);
var folderUri = messenger.getFolderUriAtNavigatePos(relPos);
var msgHdr = messenger.msgHdrFromURI(messenger.getMsgUriAtNavigatePos(relPos));
gStartMsgKey = msgHdr.messageKey;
var curPos = messenger.navigatePos;
curPos += relPos;
messenger.navigatePos = curPos;
SelectFolder(folderUri);
}
}
function GoNextMessage(type, startFromBeginning)
{
if (!gFolderDisplay.navigate(type))
CrossFolderNavigation(type);
SetFocusThreadPaneIfNotOnMessagePane();
}
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