12 lines
1.7 KiB
JavaScript
12 lines
1.7 KiB
JavaScript
/*
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* In-Field Label jQuery Plugin
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* http://fuelyourcoding.com/scripts/infield.html
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*
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* Copyright (c) 2009 Doug Neiner
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* Dual licensed under the MIT and GPL licenses.
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* Uses the same license as jQuery, see:
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* http://docs.jquery.com/License
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*
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* @version 0.1
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*/
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(function($){$.InFieldLabels=function(b,c,d){var f=this;f.$label=$(b);f.label=b;f.$field=$(c);f.field=c;f.$label.data("InFieldLabels",f);f.showing=true;f.init=function(){f.options=$.extend({},$.InFieldLabels.defaultOptions,d);if(f.$field.val()!=""){f.$label.hide();f.showing=false};f.$field.focus(function(){f.fadeOnFocus()}).blur(function(){f.checkForEmpty(true)}).bind('keydown.infieldlabel',function(e){f.hideOnChange(e)}).change(function(e){f.checkForEmpty()}).bind('onPropertyChange',function(){f.checkForEmpty()})};f.fadeOnFocus=function(){if(f.showing){f.setOpacity(f.options.fadeOpacity)}};f.setOpacity=function(a){f.$label.stop().animate({opacity:a},f.options.fadeDuration);f.showing=(a>0.0)};f.checkForEmpty=function(a){if(f.$field.val()==""){f.prepForShow();f.setOpacity(a?1.0:f.options.fadeOpacity)}else{f.setOpacity(0.0)}};f.prepForShow=function(e){if(!f.showing){f.$label.css({opacity:0.0}).show();f.$field.bind('keydown.infieldlabel',function(e){f.hideOnChange(e)})}};f.hideOnChange=function(e){if((e.keyCode==16)||(e.keyCode==9))return;if(f.showing){f.$label.hide();f.showing=false};f.$field.unbind('keydown.infieldlabel')};f.init()};$.InFieldLabels.defaultOptions={fadeOpacity:0.5,fadeDuration:300};$.fn.inFieldLabels=function(c){return this.each(function(){var a=$(this).attr('for');if(!a)return;var b=$("input#"+a+"[type='text'],"+"input#"+a+"[type='password'],"+"textarea#"+a);if(b.length==0)return;(new $.InFieldLabels(this,b[0],c))})}})(jQuery); |