32 lines
1.5 KiB
JavaScript
32 lines
1.5 KiB
JavaScript
// Textarea and select clone() bug workaround | Spencer Tipping
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// Licensed under the terms of the MIT source code license
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// Motivation.
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// jQuery's clone() method works in most cases, but it fails to copy the value of textareas and select elements. This patch replaces jQuery's clone() method with a wrapper that fills in the
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// values after the fact.
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// An interesting error case submitted by Piotr Przybyl: If two <select> options had the same value, the clone() method would select the wrong one in the cloned box. The fix, suggested by Piotr
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// and implemented here, is to use the selectedIndex property on the <select> box itself rather than relying on jQuery's value-based val().
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(function (original) {
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jQuery.fn.clone = function () {
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var result = original.apply(this, arguments),
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my_textareas = this.find('textarea').add(this.filter('textarea')),
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result_textareas = result.find('textarea').add(result.filter('textarea')),
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my_selects = this.find('select').add(this.filter('select')),
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result_selects = result.find('select').add(result.filter('select'));
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for (var i = 0, l = my_textareas.length; i < l; ++i) $(result_textareas[i]).val($(my_textareas[i]).val());
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for (var i = 0, l = my_selects.length; i < l; ++i) {
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for (var j = 0, m = my_selects[i].options.length; j < m; ++j) {
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if (my_selects[i].options[j].selected === true) {
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result_selects[i].options[j].selected = true;
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}
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}
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}
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return result;
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};
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}) (jQuery.fn.clone);
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// Generated by SDoc
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