RetroZilla/mailnews/base/resources/content/markByDate.js

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2015-10-21 05:03:22 +02:00
/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Frank Sch<EFBFBD>nheit <frank.schoenheit@gmx.de>
* Portions created by the Initial Developer are Copyright (C) 2003
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Frank Sch<EFBFBD>nheit <frank.schoenheit@gmx.de>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
const MILLISECONDS_PER_HOUR = 60 * 60 * 1000;
const MICROSECONDS_PER_DAY = 1000 * MILLISECONDS_PER_HOUR * 24;
function onLoad()
{
var upperDateBox = document.getElementById("upperDate");
// focus the upper bound control - this is where we expect most users to enter
// a date
upperDateBox.focus();
// and give it an initial date - "yesterday"
var initialDate = new Date();
initialDate.setHours( 0 );
initialDate.setTime( initialDate.getTime() - MILLISECONDS_PER_HOUR );
// note that this is sufficient - though it is at the end of the previous day,
// we convert it to a date string, and then the time part is truncated
upperDateBox.value = convertDateToString( initialDate );
upperDateBox.select(); // allows to start overwriting immediately
}
function onAccept()
{
// get the times as entered by the user
var lowerDateString = document.getElementById( "lowerDate" ).value;
// the fallback for the lower bound, if not entered, is the "beginning of
// time" (1970-01-01), which actually is simply 0 :)
var prLower = lowerDateString ? convertStringToPRTime( lowerDateString ) : 0;
var upperDateString = document.getElementById( "upperDate" ).value;
var prUpper;
if ( upperDateString == "" )
{
// for the upper bound, the fallback is "today".
var dateThisMorning = new Date();
dateThisMorning.setMilliseconds( 0 );
dateThisMorning.setSeconds( 0 );
dateThisMorning.setMinutes( 0 );
dateThisMorning.setHours( 0 );
// Javascript time is in milliseconds, PRTime is in microseconds
prUpper = dateThisMorning.getTime() * 1000;
}
else
prUpper = convertStringToPRTime( upperDateString );
// for the upper date, we have to do a correction:
// if the user enters a date, then she means (hopefully) that all messages sent
// at this day should be marked, too, but the PRTime calculated from this would
// point to the beginning of the day. So we need to increment it by
// [number of micro seconds per day]. This will denote the first microsecond of
// the next day then, which is later used as exclusive boundary
prUpper += MICROSECONDS_PER_DAY;
markInDatabase( prLower, prUpper );
return true; // allow closing
}
/** marks all headers in the database, whose time is between the two
given times, as read.
@param lower
PRTime for the lower bound - this boundary is inclusive
@param upper
PRTime for the upper bound - this boundary is exclusive
*/
function markInDatabase( lower, upper )
{
var messageFolder;
var messageDatabase;
// extract the database
if ( window.arguments && window.arguments[0] )
{
messageFolder = window.arguments[0];
messageDatabase = messageFolder.getMsgDatabase( null );
}
if ( !messageDatabase )
{
dump( "markByDate::markInDatabase: there /is/ no database to operate on!\n" );
return;
}
// the headers which are going to be marked
var headers = Components.classes["@mozilla.org/supports-array;1"].createInstance( Components.interfaces.nsISupportsArray );
// create an enumerator for all messages in the database
var enumerator = messageDatabase.EnumerateMessages();
if ( enumerator )
{
while ( enumerator.hasMoreElements() )
{
var header = enumerator.getNext();
if ( header instanceof Components.interfaces.nsIMsgDBHdr )
{
if ( !header.isRead ) // don't do anything until really necessary
{
var messageDate = header.date;
if ( ( lower <= messageDate ) && ( messageDate < upper ) )
headers.AppendElement( header );
}
}
else
dump("markByDate::markInDatabase: unexpected: the database gave us a header which is no nsIMsgDBHdr!\n" );
}
}
if ( headers.Count() )
messageFolder.markMessagesRead( headers, true );
}