Posted By

jonathanpglick on 06/03/11

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drupal

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Last Edited at 06/03/11 10:12am

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Drupal collapsible fieldset script with trigger to resize TinyMCE

/ Published in: JavaScript

This override function for the default Drupal.toggleFieldset function adds code that looks for instances of TinyMCE inside the fieldset and triggers the autoresize on them when the fieldset is opened. Otherwise TinyMCE renders with a weird height.

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/**
 * OVERWRITES Drupal.toggleFieldset in /misc/collapse.js
 *
 * Modified to trigger autoresize on tinyMCE textareas inside collapsed fieldsets
 */
Drupal.toggleFieldset = function(fieldset) {
  if ($(fieldset).is('.collapsed')) {
    // Action div containers are processed separately because of a IE bug
    // that alters the default submit button behavior.
    var content = $('> div:not(.action)', fieldset);
    $(fieldset).removeClass('collapsed');
    content.hide();
    content.slideDown( {
      duration: 'fast',
      easing: 'linear',
      complete: function() {
        Drupal.collapseScrollIntoView(this.parentNode);
        this.parentNode.animating = false;
        $('div.action', fieldset).show();

// >>>>
        var editors = $(fieldset).find('.mceEditor');
        $.each(editors, function() {
            var instance = tinyMCE.get($(this).attr('id').replace('_parent', ''));

// Add a min height it it doesn't have one yet
            if (instance.plugins.autoresize && instance.plugins.autoresize.autoresize_min_height < 50) {
                instance.plugins.autoresize.autoresize_min_height = 50;
            }
            // Trigger the resize
            instance.execCommand('mceAutoResize');
        });
	// >>>
      },
      step: function() {
        // Scroll the fieldset into view
        Drupal.collapseScrollIntoView(this.parentNode);
      }
    });
  }
  else {
    $('div.action', fieldset).hide();
    var content = $('> div:not(.action)', fieldset).slideUp('fast', function() {
      $(this.parentNode).addClass('collapsed');
      this.parentNode.animating = false;
    });
  }
};

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