42 lines
1.3 KiB
JavaScript
42 lines
1.3 KiB
JavaScript
// $Id$
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(function($) {
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Drupal.behaviors.textarea = {
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attach: function(context, settings) {
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$('textarea.resizable:not(.textarea-processed)', context).each(function() {
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// Avoid non-processed teasers.
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if ($(this).is(('textarea.teaser:not(.teaser-processed)'))) {
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return false;
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}
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var textarea = $(this).addClass('textarea-processed'), staticOffset = null;
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// When wrapping the text area, work around an IE margin bug. See:
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// http://jaspan.com/ie-inherited-margin-bug-form-elements-and-haslayout
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$(this).wrap('<div class="resizable-textarea"><span></span></div>')
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.parent().append($('<div class="grippie"></div>').mousedown(startDrag));
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var grippie = $('div.grippie', $(this).parent())[0];
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grippie.style.marginRight = (grippie.offsetWidth - $(this)[0].offsetWidth) +'px';
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function startDrag(e) {
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staticOffset = textarea.height() - e.pageY;
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textarea.css('opacity', 0.25);
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$(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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