[Summary view] [Print] [Text view]

   1  
   2  /**
   3   * Auto-attach for teaser behavior.
   4   *
   5   * Note: depends on resizable textareas.
   6   */
   7  Drupal.behaviors.teaser = function(context) {
   8    // This breaks in Konqueror. Prevent it from running.
   9    if (/KDE/.test(navigator.vendor)) {
  10      return;
  11    }
  12  
  13    $('textarea.teaser:not(.teaser-processed)', context).each(function() {
  14      var teaser = $(this).addClass('teaser-processed');
  15  
  16      // Move teaser textarea before body, and remove its form-item wrapper.
  17      var body = $('#'+ Drupal.settings.teaser[this.id]);
  18      var checkbox = $('#'+ Drupal.settings.teaserCheckbox[this.id]).parent();
  19      var checked = $(checkbox).children('input').attr('checked') ? true : false;
  20      var parent = teaser[0].parentNode;
  21      $(body).before(teaser);
  22      $(parent).remove();
  23  
  24      function trim(text) {
  25        return text.replace(/^\s+/g, '').replace(/\s+$/g, '');
  26      }
  27  
  28      // Join the teaser back to the body.
  29      function join_teaser() {
  30        if (teaser.val()) {
  31          body.val(trim(teaser.val()) +'\r\n\r\n'+ trim(body.val()));
  32        }
  33        // Empty, hide and disable teaser.
  34        teaser[0].value = '';
  35        $(teaser).attr('disabled', 'disabled');
  36        $(teaser).parent().slideUp('fast');
  37        // Change label.
  38        $(this).val(Drupal.t('Split summary at cursor'));
  39        // Hide separate teaser checkbox.
  40        $(checkbox).hide();
  41        // Force a hidden checkbox to be checked (to ensure that the body is
  42        // correctly processed on form submit when teaser/body are in joined
  43        // state), and remember the current checked status.
  44        checked = $(checkbox).children('input').attr('checked') ? true : false;
  45        $(checkbox).children('input').attr('checked', true);
  46      }
  47  
  48      // Split the teaser from the body.
  49      function split_teaser() {
  50        body[0].focus();
  51        var selection = Drupal.getSelection(body[0]);
  52        var split = selection.start;
  53        var text = body.val();
  54  
  55        // Note: using val() fails sometimes. jQuery bug?
  56        teaser[0].value = trim(text.slice(0, split));
  57        body[0].value = trim(text.slice(split));
  58        // Reveal and enable teaser
  59        $(teaser).attr('disabled', '');
  60        $(teaser).parent().slideDown('fast');
  61        // Change label
  62        $(this).val(Drupal.t('Join summary'));
  63        // Show separate teaser checkbox, restore checked value.
  64        $(checkbox).show().children('input').attr('checked', checked);
  65      }
  66  
  67      // Add split/join button.
  68      var button = $('<div class="teaser-button-wrapper"><input type="button" class="teaser-button" /></div>');
  69      var include = $('#'+ this.id.substring(0, this.id.length - 2) +'include');
  70      $(include).parent().parent().before(button);
  71  
  72      // Extract the teaser from the body, if set. Otherwise, stay in joined mode.
  73      var text = body.val().split('<!--break-->');
  74      if (text.length >= 2) {
  75        teaser[0].value = trim(text.shift());
  76        body[0].value = trim(text.join('<!--break-->'));
  77        $(teaser).attr('disabled', '');
  78        $('input', button).val(Drupal.t('Join summary')).toggle(join_teaser, split_teaser);
  79      }
  80      else {
  81        $('input', button).val(Drupal.t('Split summary at cursor')).toggle(split_teaser, join_teaser);
  82        $(checkbox).hide().children('input').attr('checked', true);
  83      }
  84  
  85      // Make sure that textarea.js has done its magic to ensure proper visibility state.
  86      if (Drupal.behaviors.textarea && teaser.is(('.form-textarea:not(.textarea-processed)'))) {
  87        Drupal.behaviors.textarea(teaser.parentNode);
  88      }
  89      // Set initial visibility
  90      if ($(teaser).is(':disabled')) {
  91        $(teaser).parent().hide();
  92      }
  93  
  94    });
  95  };