-
-
Save johnkpaul/739959 to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
var MyApp = { | |
addPlaceholders: function(props) { | |
// default configuration | |
var config = { | |
'class': 'placeholder' // apply CSS classes to an input displaying a placeholder | |
}; | |
// if any properties were supplied, apply them to the config object | |
for (var key in props) { | |
if (config.hasOwnProperty(key)) { | |
config[key] = props[key]; | |
} | |
} | |
// create a basic form for testing support | |
var testform = $('<form><input type="text"></form>'); | |
// extend jQuery.support() for testing "placeholder" attribute support | |
$.extend($.support, { | |
placeHolder: !!($('input', testform)[0].placeholder !== undefined || $('input', testform)[0].placeHolder !== undefined) | |
}); | |
// create placeholders by using "value" attribute | |
if (!$.support.placeHolder) { | |
$("form").each(function(){ | |
$(this).find('input[placeholder]').each(function() { | |
var placeholder = $(this).attr('placeholder'); | |
$(this).bind({ | |
'focus': function() { | |
if ($(this).val() === placeholder) { | |
$(this).val(''); | |
$(this).removeClass(config['class']); | |
} | |
$(this).attr('data-focused', 'yes'); | |
}, | |
'blur': function() { | |
if ($(this).val() === '') { | |
$(this).val(placeholder); | |
$(this).addClass(config['class']); | |
} | |
$(this).removeAttr('data-focused'); | |
} | |
}); | |
// only add placeholder on load when value is empty or placeholder or input is not focused (focus is preserved while reloading/XHR) | |
if ((($(this).val() === '') || ($(this).val() === placeholder)) && (!$(this).attr('data-focused'))) { | |
$(this).val(placeholder); | |
$(this).addClass(config['class']); | |
} | |
}); | |
$(this).submit(function(){ | |
var placeholders = $(this).find("."+config['class']); | |
if(placeholders){ | |
$.map(placeholders,function(el){ | |
el.value = ""; | |
}); | |
} | |
}) | |
}) | |
} | |
} | |
}; | |
$(document).ready(function() { | |
MyApp.addPlaceholders(); | |
}); |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment