/usr/lib/xul-ext/lightning/modules/calStorageHelpers.jsm is in xul-ext-lightning 1.3+build1-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* 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 Oracle Corporation code.
*
* The Initial Developer of the Original Code is
* Philipp Kewisch <mozilla@kewis.ch>
* Portions created by the Initial Developer are Copyright (C) 2005, 2006
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Vladimir Vukicevic <vladimir.vukicevic@oracle.com>
* Joey Minta <jminta@gmail.com>
* Dan Mosedale <dan.mosedale@oracle.com>
* Thomas Benisch <thomas.benisch@sun.com>
* Matthew Willis <lilmatt@mozilla.com>
* Philipp Kewisch <mozilla@kewis.ch>
* Daniel Boelzle <daniel.boelzle@sun.com>
* Sebastian Schwieger <sebo.moz@googlemail.com>
* Fred Jendrzejewski <fred.jen@web.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 ***** */
Components.utils.import("resource://calendar/modules/calUtils.jsm");
var EXPORTED_SYMBOLS = [
"CAL_ITEM_FLAG",
"createStatement",
"getInUtcOrKeepFloating",
"dateToText",
"textToDate",
"calStorageTimezone",
"getTimezone",
"newDateTime"
];
// Storage flags. These are used in the Database |flags| column to give
// information about the item's features. For example, if the item has
// attachments, the HAS_ATTACHMENTS flag is added to the flags column.
var CAL_ITEM_FLAG = {
PRIVATE: 1,
HAS_ATTENDEES: 2,
HAS_PROPERTIES: 4,
EVENT_ALLDAY: 8,
HAS_RECURRENCE: 16,
HAS_EXCEPTIONS: 32,
HAS_ATTACHMENTS: 64,
HAS_RELATIONS: 128,
HAS_ALARMS: 256,
RECURRENCE_ID_ALLDAY: 512
};
// The cache of foreign timezones
var gForeignTimezonesCache = {};
/**
* Create a storage statement on the given database connection with the passed
* sql statement string.
*
* @param aDb The mozIStorageConnection to create the statement with.
* @param aSql A string with the SQL of the statement to create.
*/
function createStatement(aDb, aSql) {
try {
// TODO We don't need the wrapper anymore if we get rid of calling
// statements as functions, i.e mDeleteAttendees(aID);
let stmt = aDb.createStatement(aSql);
let wrapper = Components.classes["@mozilla.org/storage/statement-wrapper;1"]
.createInstance(Components.interfaces.mozIStorageStatementWrapper);
wrapper.initialize(stmt);
return wrapper;
} catch (e) {
cal.ERROR("mozStorage exception: createStatement failed, statement: '" +
aSql + "', error: '" + (aDb ? aDb.lastErrorString : "(no db)") + "' - " + e);
}
return null;
}
/**
* Returns the passed date in UTC, unless it is floating. In this case, it is
* kept floating.
*
* @param dt The calIDateTime to convert.
* @return The possibly converted calIDateTime.
*/
function getInUtcOrKeepFloating(dt) {
let tz = dt.timezone;
if (tz.isFloating || tz.isUTC) {
return dt;
} else {
return dt.getInTimezone(cal.UTC());
}
}
/**
* Transforms a date object to a text which is suitable for the database
*
* @param d The calIDateTime to transform.
* @return The string representation of the date object.
*/
function dateToText(d) {
let datestr;
let tz = null;
datestr = (d.timezone.isFloating ? "L" :
(d.timezone.isUTC ? "U" : "Z")) +
(d.isDate ? "D" : "T") + d.nativeTime;
if (!d.timezone.isFloating && ! d.timezone.isUTC) {
datestr += ":" + d.timezone.tzid.replace(/%/g, "%%").replace(/:/g, "%:");
}
return datestr;
}
/**
* Transforms the text representation of this date object to a calIDateTime
* object.
*
* @param d The text to transform.
* @return The resulting calIDateTime.
*/
function textToDate(d) {
let dval;
let tz = "UTC";
if (d[0] == 'Z') {
let strs = d.substr(2).split(":");
dval = parseInt(strs[0]);
tz = strs[1].replace(/%:/g, ":").replace(/%%/g, "%");
} else {
dval = parseInt(d.substr(2));
}
let date;
if (d[0] == 'U' || d[0] == 'Z') {
date = newDateTime(dval, tz);
} else if (d[0] == 'L') {
// is local time
date = newDateTime(dval, "floating");
}
if (d[1] == 'D')
date.isDate = true;
return date;
}
//
// other helpers
//
/**
* Prototype definition for foreign timezone.
*/
function calStorageTimezone(comp) {
this.wrappedJSObject = this;
this.provider = null;
this.icalComponent = comp;
this.tzid = comp.getFirstProperty("TZID").value;
this.displayName = null;
this.isUTC = false;
this.isFloating = false;
this.latitude = null;
this.longitude = null;
}
calStorageTimezone.prototype = {
toString: function() {
return this.icalComponent.toString();
}
};
/**
* Gets the timezone for the given definition or identifier
*
* @param aTimezone The timezone data
* @return The calITimezone object
*/
function getTimezone(aTimezone) {
let tz = null;
if (aTimezone.indexOf("BEGIN:VTIMEZONE") == 0) {
tz = gForeignTimezonesCache[aTimezone]; // using full definition as key
if (!tz) {
try {
// cannot cope without parent VCALENDAR:
let comp = cal.getIcsService().parseICS("BEGIN:VCALENDAR\n" + aTimezone + "\nEND:VCALENDAR", null);
tz = new calStorageTimezone(comp.getFirstSubcomponent("VTIMEZONE"));
gForeignTimezonesCache[aTimezone] = tz;
} catch (e) {
cal.ASSERT(false, e);
}
}
} else {
tz = cal.getTimezoneService().getTimezone(aTimezone);
}
return tz;
}
/**
* Creates a new calIDateTime from the given native time and optionally
* the passed timezone. The timezone can either be the TZID of the timezone (in
* this case the timezone service will be asked for the definition), or a string
* representation of the timezone component (i.e a VTIMEZONE component).
*
* @param aNativeTime The native time, in microseconds
* @param aTimezone The timezone identifier or definition.
*/
function newDateTime(aNativeTime, aTimezone) {
let t = cal.createDateTime();
t.nativeTime = aNativeTime;
if (aTimezone) {
let tz = getTimezone(aTimezone);
if (tz) {
t = t.getInTimezone(tz);
} else {
cal.ASSERT(false, "Timezone not available: " + aTimezone);
}
} else {
t.timezone = cal.floating();
}
return t;
}
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