30
11
2007
Totally useless ‘ajax’ ‘loading’ image in the address bar as a spinning thing
Posted by: Ori Pekelman in ajax, javascriptWelcome to probably the most useless blog post on the web.
Now you can happily animate stuff in the address bar (do you remember the nineties and nice status bar animations ? 
) .
The beautiful online demo can be found here : Demo of animated address bar
HTML:
JavaScript:
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<!--
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/**
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* Copyright (c) 2007, AF83
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1° Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2° Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3° Neither the name of AF83 nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COMPANY AF83 AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* @copyright 2007 AF83 Ori Pekelman
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* @license BSD License (3 Clause) http://www.opensource.org/licenses/bsd-license.php
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* @package Useless Stuff
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*/
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// Configure :
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var TextBefore=' ... Loading ... ';
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// End configuration
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var AddressBarLoaderTimeOut;
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var OriginalLocationHash = document.location.hash; // so we can restore original url
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function loc_hash(a){
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document.location.hash =TextBefore+a;
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}
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function spinStart(){
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AddressBarLoaderTimeOut=setTimeout("spinStart()",100);
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loc_hash("|");
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loc_hash("/");
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loc_hash("-");
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loc_hash("");
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loc_hash("|");
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loc_hash("/");
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loc_hash("-");
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}
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function spinStop(){
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document.location.hash=OriginalLocationHash;
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clearTimeout(AddressBarLoaderTimeOut) ;
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}
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// -->
HTML:
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</script>
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</head>
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<h1>Totally usesless 'ajax' 'loading' image in the address bar as a spinning thing</h1>
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<div style="margin:100px;height:100px;width:100px; background-color:#333;font-size:18;color:white;" onclick="spinStart();">Click on me to start address bar ajax loader</div>
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<div style="margin:100px;height:100px;width:100px; background-color:#333;font-size:18;color:white;" onclick="spinStop();">Click on me to stop</div>
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</body>
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</html>
Entries (RSS)
November 30th, 2007 at 2:26 pm
Doesn’t work on Opera : it stucks to the loading step.
November 30th, 2007 at 3:16 pm
peut-être qu’il faut utiliser window.location.replace pour opera? mystère. J’ouvre toute de suite un gros ticket prioritaire
December 4th, 2007 at 1:55 am
Ce genre de technique est utilisé par des bibliothèques comme Really Simple History [http://code.google.com/p/reallysimplehistory/] pour créer un historique sur des requêtes AJAX et permettre de bookmarker un état d’une page après une requêtes AJAX. Really Simple History contient beaucoup de code spécifiques à un navigateur, ce qui laisse penser que ce genre de manipulation est très peu portable. Dans le cas particulier d’Opera, la lecture du code de Really Simple History (très bien documenté soit dit au passage) me laisse penser qu’opera n’accepte pas de modifier le window.location plus d’une fois toutes les 400 millisecondes.
December 13th, 2007 at 10:29 pm
Whoa! No, no, and no! Basically destroyed my session history … I couldn’t even come back to this page and had to find it in Google again.
I hated these effects back in the day before I could selectively disable Javascript abilities, and I hate this one even more
What would be a neat idea would be to change the favicon to an animated loader, and change it back to static when the page is done. I know Firefox supports animated favicons, but I doubt any other browsers do … IE certainly does not.
<link rel=”shortcut icon” href=”favicon.gif” type=”image/gif” />
Wouldn’t be hard to change the href in Javascript … perhaps I’ll give it a shot and see what comes of it.
December 27th, 2007 at 12:35 pm
He he. I am sure there are worlds of annoying stuff yet to be invented. Maybe we should make a contest?