33 lines
920 B
JavaScript
33 lines
920 B
JavaScript
(function ($) {
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Drupal.behaviors.textarea = {
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attach: function (context, settings) {
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$('.form-textarea-wrapper.resizable', context).once('textarea', function () {
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var staticOffset = null;
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var textarea = $(this).addClass('resizable-textarea').find('textarea');
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var grippie = $('<div class="grippie"></div>').mousedown(startDrag);
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grippie.insertAfter(textarea);
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function startDrag(e) {
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staticOffset = textarea.height() - e.pageY;
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textarea.css('opacity', 0.25);
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$(document).mousemove(performDrag).mouseup(endDrag);
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return false;
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}
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function performDrag(e) {
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textarea.height(Math.max(32, staticOffset + e.pageY) + 'px');
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return false;
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}
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function endDrag(e) {
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$(document).unbind('mousemove', performDrag).unbind('mouseup', endDrag);
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textarea.css('opacity', 1);
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}
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});
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}
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};
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})(jQuery);
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