/**
* This file defines the Is class, which does the job of detecting the
* environment (browser and operating system) that the application
* is running in.
*
*
(C) Netscape Communications 1999.
*
* Permission granted to reuse and distribute.
*
Code and documentation
* modified by TreeLogic Software Engineering (see CHANGELOG).
*
* Used for the present software application, Gigapan Explorer, by:
* Fall-2005-CMU-NASA/Google-Practicum-Subteam:
* Ellen Hudson-Snyder,
* Elvin Vedar,
* Christopher M. Balz.
*
CVS Version Info:
* $Id: Is.js,v 1.7 2005/12/09 05:49:03 evedar Exp $
*
* @author Netscape Communications, with modifications (see above).
*
*/
/**
* Create a new Is object.
* This class provides everything you always wanted to know about your
* JavaScript client
* but were afraid to ask.
* "Is" is the constructor function for "is" object.
*
* ** This is an abridged version.
*
* The full version has the following properties:
* which has properties indicating:
* (1) browser vendor:
* is.nav, is.ie, is.opera, is.hotjava, is.webtv, is.TVNavigator, is.AOLTV
* (2) browser version number:
* is.major (integer indicating major version number: 2, 3, 4 ...)
* is.minor (float indicating full version number: 2.02, 3.01, 4.04 ...)
* (3) browser vendor AND major version number
* is.nav2, is.nav3, is.nav4, is.nav4up, is.nav6, is.nav6up, is.gecko, is.ie3,
* is.ie4, is.ie4up, is.ie5, is.ie5up, is.ie5_5, is.ie5_5up, is.hotjava3, is.hotjava3up
* (4) JavaScript version number:
* is.js (float indicating full JavaScript version number: 1, 1.1, 1.2 ...)
* (5) OS platform and version:
* is.win, is.win16, is.win32, is.win31, is.win95, is.winnt, is.win98, is.winme, is.win2k
* is.os2
* is.mac, is.mac68k, is.macppc
* is.unix
* is.sun, is.sun4, is.sun5, is.suni86
* is.irix, is.irix5, is.irix6
* is.hpux, is.hpux9, is.hpux10
* is.aix, is.aix1, is.aix2, is.aix3, is.aix4
* is.linux, is.sco, is.unixware, is.mpras, is.reliant
* is.dec, is.sinix, is.freebsd, is.bsd
* is.vms
*
*
* CHANGELOG of Fall-2005-CMU-NASA/Google-Practicum-Subteam
*
* Removed code block for Internet Explorer 3 (not needed).
*
* CHANGELOG of TreeLogic Software Engineering's changes from original version:
*
* Cut out all but what is really needed for the customer survey application.
* Put detection of IE and NN browser versions that are less than version #4
* at the top of the application, so don't need that code here. Also don't
* need detailed
* info on Unix o/s variants. Moved the
* formerly global 'is' and 'is3Mac' variables to be type-prepended
* properties of the System object. Updated ie4 detection to cope
* with IE6 (marked in code below). Such things are quirky due to the
* nature of user agent strings (see non-JSDoc comments
* in this file for more detail).
*
* Added detection of Gecko's (Mozilla's) revision number.
*
* Added detection of Firefox from Mozilla.org.
*
* CHANGELOG of Netscape Corp.'s changes from earlier versions:
*
* Revised 22 Feb 01 to correct Javascript Detection for IE 5.x, Opera 4,
* correct Opera 5 detection
* add support for winME and win2k
* synch with browser-type-oo.js
*
* Revised 26 Mar 01 to correct Opera detection
*
* Note: See non-JSDoc comments in the code
* for further detailed information
* on use of this class.
*
* @object-prop major The major (to the left of the decimal
* point) version of the browser that the
* application is running on (the "current" browser).
* @object-prop minor The minor (to the right of the decimal
* point) version of the browser that the
* application is running on (the "current" browser).
* @object-prop nav A boolean value indicating whether or not
* the current browser is a version of Netscape Navigator.
* @object-prop nav4 A boolean value indicating whether or not the current
* browser is a version of Navigator 4.x.
* @object-prop nav4up A boolean value indicating whether or not the current
* browser is a version of Navigator 4 or greater.
* @object-prop nav6 A boolean value indicating whether or not the current
* browser is a version of Navigator 6.x.
* @object-prop nav6up A boolean value indicating whether or not the current
* browser is a version of Navigator 6 or greater.
* @object-prop gecko A boolean value indicating whether or not the current
* browser is a version of Mozilla.org's browser or
* adaptions of or not.
* @object-prop firefox A boolean value indicating whether or not the current
* browser is a version of Mozilla.org's Firefox browser
* or not.
* @object-prop ie A boolean value indicating whether or not the current
* browser is a version of the Internet Explorer browser
* or not.
* @object-prop ie4 A boolean value indicating whether or not the current
* browser is version 4.x of the Internet Explorer browser.
* @object-prop ie5 A boolean value indicating whether or not the current
* browser is a version 5.x of the Internet Explorer browser.
* @object-prop ie5_5 A boolean value indicating whether or not the current
* browser is Internet Explorer 5.5 or not.
* @object-prop ie5up A boolean value indicating whether or not the current
* browser is a version of Internet Explorer 5 or greater.
* @object-prop aol5up A boolean value indicating whether or not this is the
* browser from America Online (AOL) version 5 and up. AOL
* browsers are always almost identical to either Internet
* Explorer or Netscape Navigator, and so they return
* proper readings for "ie5", etc.
* @object-prop opera A boolean value indicating whether or not this is the
* Opera browser.
* @object-prop win A boolean value indicating whether or not the current
* operating system is Windows.
* @object-prop win95 A boolean value indicating whether or not the current
* operating system is Windows 95.
* @object-prop win16 A boolean value indicating whether or not the current
* operating system is 16-bit Windows.
* @object-prop win31 A boolean value indicating whether or not the current
* operating system is Windows 3.1.
* @object-prop win98 A boolean value indicating whether or not the current
* operating system is Windows 98. Note: on Navigator 4
* and earlier, "Windows" is the only identification made
* (no '98', '95', etc.).
* @object-prop winnt A boolean value indicating whether or not the current
* operating system is Windows NT.
* @object-prop win32 A boolean value indicating whether or not the current
* operating system is a 32-bit version of Windows 95, 98,
* or NT.
* @object-prop win2k A boolean value indicating whether or not the current
* operating system is Windows 2000.
* @object-prop mac A boolean value indicating whether or not the current
* operating system is Macintosh.
* @object-prop linux A boolean value indicating whether or not the current
* operating system is linux.
*/
function Is () {
// convert all characters to lowercase to simplify testing
var agt=navigator.userAgent.toLowerCase();
var rxpGeckoRevision = /(rv:\d+\.\d+)/;
var strTemp;
// *** BROWSER VERSION ***
// Note: On IE5, these return 4, so use is.ie5up to detect IE5.
this.major = parseInt(navigator.appVersion);
this.minor = parseFloat(navigator.appVersion);
// Note: Opera and WebTV spoof Navigator. We do strict client detection.
// If you want to allow spoofing, take out the tests for opera and webtv.
this.nav = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1)
&& (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1)
&& (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1));
this.nav4 = (this.nav && (this.major == 4));
this.nav4up = (this.nav && (this.major >= 4));
this.nav6 = (this.nav && (this.major == 5));
this.nav6up = (this.nav && (this.major >= 5));
this.gecko = (agt.indexOf('gecko') != -1);
this.firefox = (agt.indexOf('firefox') != -1);
if (this.gecko) {
this.fltGeckoRevision = (agt.split(rxpGeckoRevision)[1]).replace(/rv:/, "");
}
this.ie = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
this.ie4 = (
this.ie && (this.major == 4) &&
(agt.indexOf("msie 5") == -1) &&
(agt.indexOf("msie 6") == -1) &&
(agt.indexOf("msie 7") == -1) &&
(agt.indexOf("msie 8") == -1)
); // 10/9/2001 mod. TreeLogic SWE. -> update this after IE 8!.
this.ie5 = (this.ie && (this.major == 4) && (agt.indexOf("msie 5.0")!=-1) );
this.ie5_5 = (this.ie && (this.major == 4) && (agt.indexOf("msie 5.5") !=-1));
this.ie5up = (this.ie && !this.ie3 && !this.ie4);
/*-
* Note: The AOL browser yields 'true' to the standard vendor i.d.'s
* (this.ie, this.nav7, etc.). A nice thing.
*/
// KNOWN BUG: On AOL4, returns false if IE3 is embedded browser
// or if this is the first browser window opened. Thus the
// variables is.aol, is.aol3, and is.aol4 aren't 100% reliable.
this.aol5up = ( (agt.indexOf("aol 5") != -1) || (agt.indexOf("aol 6") != -1) );
this.opera = (agt.indexOf("opera") != -1);
// *** PLATFORM ***
this.win = ( (agt.indexOf("win")!=-1) || (agt.indexOf("16bit")!=-1) );
// NOTE: On Opera 3.0, the userAgent string includes "Windows 95/NT4" on all
// Win32, so you can't distinguish between Win95 and WinNT.
this.win95 = ((agt.indexOf("win95")!=-1) || (agt.indexOf("windows 95")!=-1));
// is this a 16 bit compiled version?
this.win16 = ((agt.indexOf("win16")!=-1) ||
(agt.indexOf("16bit")!=-1) || (agt.indexOf("windows 3.1")!=-1) ||
(agt.indexOf("windows 16-bit")!=-1) );
this.win31 = ((agt.indexOf("windows 3.1")!=-1) || (agt.indexOf("win16")!=-1) ||
(agt.indexOf("windows 16-bit")!=-1));
// NOTE: Reliable detection of Win98 may not be possible. It appears that:
// - On Nav 4.x and before you'll get plain "Windows" in userAgent.
// - On Mercury client, the 32-bit version will return "Win98", but
// the 16-bit version running on Win98 will still return "Win95".
this.win98 = ((agt.indexOf("win98")!=-1) || (agt.indexOf("windows 98")!=-1));
this.winnt = ((agt.indexOf("winnt")!=-1) || (agt.indexOf("windows nt")!=-1));
this.win32 = (this.win95 || this.winnt || this.win98 ||
((this.major >= 4) && (navigator.platform == "Win32")) ||
(agt.indexOf("win32")!=-1) || (agt.indexOf("32bit")!=-1));
this.winme = ((agt.indexOf("win 9x 4.90")!=-1));
this.win2k = ((agt.indexOf("windows nt 5.0")!=-1));
this.mac = (agt.indexOf("mac")!=-1);
this.linux = (agt.indexOf("inux")!=-1);
} //-Is
/*-
* See http://www.it97.de/JavaScript/JS_tutorial/bstat/navobj.html and
* http://www.it97.de/JavaScript/JS_tutorial/bstat/Browseraol.html
* for detailed lists of userAgent strings.
*
* Note: you don't want your Nav4 or IE4 code to "turn off" or
* stop working when later browser versions are released, so
* in conditional code forks, use for example is.nav6up
* ("Nav6 or greater")
* and is.ie6up ("IE6 or greater") instead of is.nav6 or is.ie6
* to check version in code which you want to work on future
* versions.
*/