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Item5389: JQueryLibPlugin adding spinner plugin.
git-svn-id: http://svn.foswiki.org/trunk/JQueryLibPlugin@2662 0b4bb1d4-4e5a-0410-9cc4-b2b747904278
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Feb 24, 2009
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pub/System/JQueryLibPlugin/plugins/spinner/jquery.spinner.js
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,177 @@ | ||
| /* | ||
| * Simple jQuery spinner. | ||
| * Based on: http://jquery.com/plugins/Authoring/ | ||
| * Original work from http://www.command-tab.com/2007/05/07/jquery-spinner-plugin/ | ||
| * Rewritten by Stéphane Lenclud to support multiple spinner per page and nicer API | ||
| * | ||
| * @version 20080225 | ||
| * @since 2008-02-25 | ||
| * @copyright Copyright (c) 2007 www.command-tab.com, Copyright (c) 2008 Stéphane Lenclud. | ||
| * @author Stéphane Lenclud <jquery@lenclud.com> | ||
| * @license GPL | ||
| * @requires >= jQuery 1.2.3 | ||
| */ | ||
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| // | ||
| // create closure | ||
| // | ||
| (function($) { | ||
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| //Prevent compilation error in case jquery.debug.js is not loaded | ||
| function log(msg) | ||
| { | ||
| if ($.log) | ||
| { | ||
| $.log(msg); | ||
| } | ||
| } | ||
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| // | ||
| // plugin definition | ||
| // | ||
| $.fn.spinner = function(options) { | ||
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| //debug(this); | ||
| // build main options before element iteration | ||
| var opts = $.extend({}, $.fn.spinner.defaults, options); | ||
| // iterate and reformat each matched element | ||
| return this.each(function() { | ||
| //Stop it first, to prevent double start | ||
| //$.fn.spinner.stop(); | ||
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| $this = $(this); | ||
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| //check if we get a command option | ||
| if (typeof options == "string") { | ||
| if (options == "stop") | ||
| { | ||
| // | ||
| var o = $.data(this,"spinner"); //restore | ||
| if(o.intervalId) | ||
| { | ||
| log("stop " + this.id); | ||
| clearInterval(o.intervalId); | ||
| o.intervalId=undefined; | ||
| $.data(this,"spinner",o); //store | ||
| } | ||
| return; | ||
| } | ||
| else if (options == "redraw") | ||
| { | ||
| //Do redraw | ||
| var o = $.data(this,"spinner"); | ||
| log("redraw " + this.id); | ||
| log(o); | ||
| //log("frame" + o.frame); | ||
| //if(o.intervalId) clearInterval(o.intervalId); | ||
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| //alert(o.frame); | ||
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| // If we've reached the last frame, loop back around | ||
| if(o.frame >= o.frames) { | ||
| o.frame = 1; | ||
| } | ||
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| // Set the background-position for this frame | ||
| pos = "-"+(o.frame*o.width)+"px 0px"; | ||
| $this.css("background-position",pos); | ||
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| // Increment the frame count | ||
| o.frame=o.frame+1; | ||
| $.data(this,"spinner",o); | ||
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| return; | ||
| } | ||
| } | ||
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| //Normal contructor/starter | ||
| // build element specific options | ||
| var o = $.extend({}, opts, $.data(this,"spinner")); | ||
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| log("dump " + this.id); | ||
| log(o); //dump | ||
| if (o.intervalId) | ||
| { | ||
| //Make sure we stop before starting again | ||
| $this.spinner('stop'); | ||
| } | ||
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| // Set the height | ||
| if(o.height) { | ||
| $this.height(o.height); | ||
| } | ||
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| // Set the width | ||
| if(o.width) { | ||
| $this.width(o.width); | ||
| } | ||
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| // Set or get the spinner image | ||
| //if(o.image) { | ||
| $this.css("background-image","url("+o.image+")"); | ||
| $this.css("background-position","0px 0px"); | ||
| $this.css("background-repeat","no-repeat"); | ||
| //} else { | ||
| // o.image = $this.css("background-image"); | ||
| //} | ||
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| // Store our data | ||
| //$.data(this,"spinner",o); | ||
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| // Determine how many frames exist | ||
| img = new Image(); | ||
| img.src = o.image; | ||
| img.onload = function() { | ||
| //var o = $.data(this,"spinner"); //restore | ||
| log("image.onload " + this.id); | ||
| o.frames = img.width/o.width; | ||
| log(o); | ||
| $.data(this,"spinner",o); //store | ||
| }; | ||
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| // Set the frame speed | ||
| if(!o.speed) { | ||
| o.speed = 25; | ||
| } | ||
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| log("start " + this.id); | ||
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| o.frame=0; | ||
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| //o.intervalId=setInterval("$.fn.spinner.redraw(this)",o.speed); | ||
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| // Kick off the animation | ||
| o.intervalId=setInterval("$('#" + this.id +"').spinner('redraw')",o.speed); | ||
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| // Store our data | ||
| $.data(this,"spinner",o); | ||
| //var spinnerAnimation = setInterval(spinnerRedraw,options.speed); | ||
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| }); | ||
| }; | ||
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| // | ||
| // plugin defaults | ||
| // | ||
| $.fn.spinner.defaults = { | ||
| height: 32, | ||
| width: 32, | ||
| speed: 50, | ||
| frame: 0, | ||
| frames: 31, | ||
| intervalId: 0 | ||
| }; | ||
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| // | ||
| // end of closure | ||
| // | ||
| })(jQuery); | ||
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