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// $Id$
/**
* Auto-attach for teaser behavior.
*
* Note: depends on resizable textareas.
*/
Drupal.behaviors.teaser = {
attach: function(context) {
// This breaks in Konqueror. Prevent it from running.
if (/KDE/.test(navigator.vendor)) {
return;
}
$('textarea.teaser:not(.teaser-processed)', context).each(function() {
var teaser = $(this).addClass('teaser-processed');
// Move teaser textarea before body, and remove its form-item wrapper.
var body = $('#'+ Drupal.settings.teaser[this.id]);
var checkbox = $('#'+ Drupal.settings.teaserCheckbox[this.id]).parent();
var checked = $(checkbox).children('input').attr('checked') ? true : false;
var parent = teaser[0].parentNode;
$(body).before(teaser);
$(parent).remove();
function trim(text) {
return text.replace(/^\s+/g, '').replace(/\s+$/g, '');
}
// Join the teaser back to the body.
function join_teaser() {
if (teaser.val()) {
body.val(trim(teaser.val()) +'\r\n\r\n'+ trim(body.val()));
}
// Empty, hide and disable teaser.
teaser[0].value = '';
$(teaser).attr('disabled', 'disabled');
$(teaser).parent().slideUp('fast');
// Change label.
$(this).val(Drupal.t('Split summary at cursor'));
// Hide separate teaser checkbox.
$(checkbox).hide();
// Force a hidden checkbox to be checked (to ensure that the body is
// correctly processed on form submit when teaser/body are in joined
// state), and remember the current checked status.
checked = $(checkbox).children('input').attr('checked') ? true : false;
$(checkbox).children('input').attr('checked', true);
}
// Split the teaser from the body.
function split_teaser() {
body[0].focus();
var selection = Drupal.getSelection(body[0]);
var split = selection.start;
var text = body.val();
// Note: using val() fails sometimes. jQuery bug?
teaser[0].value = trim(text.slice(0, split));
body[0].value = trim(text.slice(split));
// Reveal and enable teaser.
$(teaser).attr('disabled', '');
$(teaser).parent().slideDown('fast');
// Change label.
$(this).val(Drupal.t('Join summary'));
// Show separate teaser checkbox, restore checked value.
$(checkbox).show().children('input').attr('checked', checked);
}
// Add split/join button.
var button = $('<div class="teaser-button-wrapper"><input type="button" class="teaser-button" /></div>');
var include = $('#'+ this.id.substring(0, this.id.length - 2) +'include');
$(include).parent().parent().before(button);
// Extract the teaser from the body, if set. Otherwise, stay in joined mode.
var text = body.val().split('<!--break-->', 2);
if (text.length == 2) {
teaser[0].value = trim(text[0]);
body[0].value = trim(text[1]);
$(teaser).attr('disabled', '');
$('input', button).val(Drupal.t('Join summary')).toggle(join_teaser, split_teaser);
}
else {
$('input', button).val(Drupal.t('Split summary at cursor')).toggle(split_teaser, join_teaser);
$(checkbox).hide().children('input').attr('checked', true);
}
// Make sure that textarea.js has done its magic to ensure proper visibility state.
if (Drupal.behaviors.textarea && teaser.is(('.form-textarea:not(.textarea-processed)'))) {
Drupal.behaviors.textarea.attach(teaser.parentNode);
}
// Set initial visibility.
if ($(teaser).is('[@disabled]')) {
$(teaser).parent().hide();
}
});
}
};
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