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/** |
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* jquery.spin-button |
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* (c) 2008 Semooh (http://semooh.jp/) |
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* |
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* Dual licensed under the MIT (MIT-LICENSE.txt) |
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* and GPL (GPL-LICENSE.txt) licenses. |
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* |
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**/ |
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(function($){ |
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$.fn.extend({ |
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spin: function(opt){ |
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return this.each(function(){ |
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opt = $.extend({ |
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imageBasePath: '/img/spin/', |
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spinBtnImage: 'spin-button.png?v='+Math.random(), //IE fix |
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spinUpImage: 'spin-up.png?v='+Math.random(), //IE fix |
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spinDownImage: 'spin-down.png?v='+Math.random(), //IE fix |
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interval: 1, |
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max: null, |
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min: null, |
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timeInterval: 300, |
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timeBlink: 100 |
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}, opt || {}); |
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var txt = $(this); |
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var spinBtnImage = opt.imageBasePath+opt.spinBtnImage; |
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var btnSpin = new Image(); |
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$(btnSpin).load(function(){ btn.css({width: btnSpin.width+'px'}); }); //IE fix |
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btnSpin.src = spinBtnImage; |
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var spinUpImage = opt.imageBasePath+opt.spinUpImage; |
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var btnSpinUp = new Image(); |
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btnSpinUp.src = spinUpImage; |
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var spinDownImage = opt.imageBasePath+opt.spinDownImage; |
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var btnSpinDown = new Image(); |
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btnSpinDown.src = spinDownImage; |
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var btn = $(document.createElement('img')); |
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btn.attr('src', spinBtnImage); |
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btn.css({cursor: 'pointer', verticalAlign: 'bottom', padding: 0, margin: 0 }); |
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txt.after(btn); |
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txt.css({marginRight:0, paddingRight:0}); |
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function spin(vector){ |
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var val = txt.val(); |
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if(!isNaN(val)){ |
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val = parseFloat(val) + (vector*opt.interval); |
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if(opt.min!=null && val<opt.min) val=opt.min; |
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if(opt.min!=null && val>opt.max) val=opt.max; |
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if(val != txt.val()){ |
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txt.val(val); |
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txt.change(); |
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src = (vector > 0 ? spinUpImage : spinDownImage); |
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btn.attr('src', src); |
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if(opt.timeBlink<opt.timeInterval) |
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setTimeout(function(){btn.attr('src', spinBtnImage);}, opt.timeBlink); |
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} |
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} |
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} |
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btn.mousedown(function(e){ |
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var pos = e.pageY - btn.offset().top + $(document.body).offset().top; |
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var vector = (btn.height()/2 > pos ? 1 : -1); |
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(function(){ |
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spin(vector); |
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var tk = setTimeout(arguments.callee, opt.timeInterval); |
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$(document).one('mouseup', function(){ |
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clearTimeout(tk); btn.attr('src', spinBtnImage); |
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}); |
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})(); |
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return false; |
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}); |
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}); |
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} |
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}); |
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})(jQuery); |