12 lines
2.2 KiB
JavaScript
12 lines
2.2 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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Copyright (c) 2009-2010 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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@version 0.1.5
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*/
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(function($){$.InFieldLabels=function(label,field,options){var base=this;base.$label=$(label);base.label=label;base.$field=$(field);base.field=field;base.$label.data("InFieldLabels",base);base.showing=true;base.init=function(){base.options=$.extend({},$.InFieldLabels.defaultOptions,options);setTimeout(function(){if(base.$field.val()!==""){base.$label.hide();base.showing=false}},200);base.$field.focus(function(){base.fadeOnFocus()}).blur(function(){base.checkForEmpty(true)}).bind('keydown.infieldlabel',function(e){base.hideOnChange(e)}).bind('paste',function(e){base.setOpacity(0.0)}).change(function(e){base.checkForEmpty()}).bind('onPropertyChange',function(){base.checkForEmpty()}).bind('keyup.infieldlabel',function(){base.checkForEmpty()})};base.fadeOnFocus=function(){if(base.showing){base.setOpacity(base.options.fadeOpacity)}};base.setOpacity=function(opacity){base.$label.stop().animate({opacity:opacity},base.options.fadeDuration);base.showing=(opacity>0.0)};base.checkForEmpty=function(blur){if(base.$field.val()===""){base.prepForShow();base.setOpacity(blur?1.0:base.options.fadeOpacity)}else{base.setOpacity(0.0)}};base.prepForShow=function(e){if(!base.showing){base.$label.css({opacity:0.0}).show();base.$field.bind('keydown.infieldlabel',function(e){base.hideOnChange(e)})}};base.hideOnChange=function(e){if((e.keyCode===16)||(e.keyCode===9)){return}if(base.showing){base.$label.hide();base.showing=false}base.$field.unbind('keydown.infieldlabel')};base.init()};$.InFieldLabels.defaultOptions={fadeOpacity:0.5,fadeDuration:300};$.fn.inFieldLabels=function(options){return this.each(function(){var for_attr=$(this).attr('for'),$field;if(!for_attr){return}$field=$("input#"+for_attr+"[type='text'],"+"input#"+for_attr+"[type='search'],"+"input#"+for_attr+"[type='tel'],"+"input#"+for_attr+"[type='url'],"+"input#"+for_attr+"[type='email'],"+"input#"+for_attr+"[type='password'],"+"textarea#"+for_attr);if($field.length===0){return}(new $.InFieldLabels(this,$field[0],options))})}}(jQuery));
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