104 lines
No EOL
3 KiB
JavaScript
104 lines
No EOL
3 KiB
JavaScript
/*! http://mths.be/placeholder v1.8.7 by @mathias */
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;(function(window, document, $) {
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var isInputSupported = 'placeholder' in document.createElement('input'),
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isTextareaSupported = 'placeholder' in document.createElement('textarea'),
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prototype = $.fn,
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placeholder;
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if (isInputSupported && isTextareaSupported) {
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placeholder = prototype.placeholder = function() {
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return this;
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};
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placeholder.input = placeholder.textarea = true;
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} else {
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placeholder = prototype.placeholder = function() {
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return this
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.filter((isInputSupported ? 'textarea' : ':input') + '[placeholder]')
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.not('.placeholder')
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.bind('focus.placeholder', clearPlaceholder)
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.bind('blur.placeholder', setPlaceholder)
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.trigger('blur.placeholder').end();
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};
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placeholder.input = isInputSupported;
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placeholder.textarea = isTextareaSupported;
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$(function() {
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// Look for forms
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$(document).delegate('form', 'submit.placeholder', function() {
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// Clear the placeholder values so they don’t get submitted
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var $inputs = $('.placeholder', this).each(clearPlaceholder);
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setTimeout(function() {
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$inputs.each(setPlaceholder);
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}, 10);
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});
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});
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// Clear placeholder values upon page reload
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$(window).bind('unload.placeholder', function() {
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$('.placeholder').val('');
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});
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}
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function args(elem) {
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// Return an object of element attributes
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var newAttrs = {},
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rinlinejQuery = /^jQuery\d+$/;
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$.each(elem.attributes, function(i, attr) {
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if (attr.specified && !rinlinejQuery.test(attr.name)) {
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newAttrs[attr.name] = attr.value;
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}
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});
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return newAttrs;
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}
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function clearPlaceholder() {
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var $input = $(this);
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if ($input.val() === $input.attr('placeholder') && $input.hasClass('placeholder')) {
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if ($input.data('placeholder-password')) {
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$input.hide().next().show().focus().attr('id', $input.removeAttr('id').data('placeholder-id'));
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} else {
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$input.val('').removeClass('placeholder');
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}
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}
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}
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function setPlaceholder() {
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var $replacement,
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$input = $(this),
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$origInput = $input,
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id = this.id;
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if ($input.val() === '') {
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if ($input.is(':password')) {
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if (!$input.data('placeholder-textinput')) {
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try {
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$replacement = $input.clone().attr({ 'type': 'text' });
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} catch(e) {
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$replacement = $('<input>').attr($.extend(args(this), { 'type': 'text' }));
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}
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$replacement
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.removeAttr('name')
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// We could just use the `.data(obj)` syntax here, but that wouldn’t work in pre-1.4.3 jQueries
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.data('placeholder-password', true)
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.data('placeholder-id', id)
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.bind('focus.placeholder', clearPlaceholder);
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$input
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.data('placeholder-textinput', $replacement)
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.data('placeholder-id', id)
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.before($replacement);
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}
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$input = $input.removeAttr('id').hide().prev().attr('id', id).show();
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}
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$input.addClass('placeholder').val($input.attr('placeholder'));
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} else {
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$input.removeClass('placeholder');
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}
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}
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}(this, document, jQuery)); |