webmaster@1: // $Id: tableselect.js,v 1.8 2007/11/19 12:15:16 goba Exp $
webmaster@1: 
webmaster@1: Drupal.behaviors.tableSelect = function (context) {
webmaster@1:   $('form table:has(th.select-all):not(.tableSelect-processed)', context).each(Drupal.tableSelect);
webmaster@1: };
webmaster@1: 
webmaster@1: Drupal.tableSelect = function() {
webmaster@1:   // Do not add a "Select all" checkbox if there are no rows with checkboxes in the table
webmaster@1:   if ($('td input:checkbox', this).size() == 0) {
webmaster@1:     return;
webmaster@1:   }
webmaster@1: 
webmaster@1:   // Keep track of the table, which checkbox is checked and alias the settings.
webmaster@1:   var table = this, checkboxes, lastChecked;
webmaster@1:   var strings = { 'selectAll': Drupal.t('Select all rows in this table'), 'selectNone': Drupal.t('Deselect all rows in this table') };
webmaster@1:   var updateSelectAll = function(state) {
webmaster@1:     $('th.select-all input:checkbox', table).each(function() {
webmaster@1:       $(this).attr('title', state ? strings.selectNone : strings.selectAll);
webmaster@1:       this.checked = state;
webmaster@1:     });
webmaster@1:   };
webmaster@1: 
webmaster@1:   // Find all <th> with class select-all, and insert the check all checkbox.
webmaster@1:   $('th.select-all', table).prepend($('<input type="checkbox" class="form-checkbox" />').attr('title', strings.selectAll)).click(function(event) {
webmaster@1:     if ($(event.target).is('input:checkbox')) {
webmaster@1:       // Loop through all checkboxes and set their state to the select all checkbox' state.
webmaster@1:       checkboxes.each(function() {
webmaster@1:         this.checked = event.target.checked;
webmaster@1:         // Either add or remove the selected class based on the state of the check all checkbox.
webmaster@1:         $(this).parents('tr:first')[ this.checked ? 'addClass' : 'removeClass' ]('selected');
webmaster@1:       });
webmaster@1:       // Update the title and the state of the check all box.
webmaster@1:       updateSelectAll(event.target.checked);
webmaster@1:     }
webmaster@1:   });
webmaster@1: 
webmaster@1:   // For each of the checkboxes within the table.
webmaster@1:   checkboxes = $('td input:checkbox', table).click(function(e) {
webmaster@1:     // Either add or remove the selected class based on the state of the check all checkbox.
webmaster@1:     $(this).parents('tr:first')[ this.checked ? 'addClass' : 'removeClass' ]('selected');
webmaster@1: 
webmaster@1:     // If this is a shift click, we need to highlight everything in the range.
webmaster@1:     // Also make sure that we are actually checking checkboxes over a range and
webmaster@1:     // that a checkbox has been checked or unchecked before.
webmaster@1:     if (e.shiftKey && lastChecked && lastChecked != e.target) {
webmaster@1:       // We use the checkbox's parent TR to do our range searching.
webmaster@1:       Drupal.tableSelectRange($(e.target).parents('tr')[0], $(lastChecked).parents('tr')[0], e.target.checked);
webmaster@1:     }
webmaster@1: 
webmaster@1:     // If all checkboxes are checked, make sure the select-all one is checked too, otherwise keep unchecked.
webmaster@1:     updateSelectAll((checkboxes.length == $(checkboxes).filter(':checked').length));
webmaster@1: 
webmaster@1:     // Keep track of the last checked checkbox.
webmaster@1:     lastChecked = e.target;
webmaster@1:   });
webmaster@1:   $(this).addClass('tableSelect-processed');
webmaster@1: };
webmaster@1: 
webmaster@1: Drupal.tableSelectRange = function(from, to, state) {
webmaster@1:   // We determine the looping mode based on the the order of from and to.
webmaster@1:   var mode = from.rowIndex > to.rowIndex ? 'previousSibling' : 'nextSibling';
webmaster@1: 
webmaster@1:   // Traverse through the sibling nodes.
webmaster@1:   for (var i = from[mode]; i; i = i[mode]) {
webmaster@1:     // Make sure that we're only dealing with elements.
webmaster@1:     if (i.nodeType != 1) {
webmaster@1:       continue;
webmaster@1:     }
webmaster@1: 
webmaster@1:     // Either add or remove the selected class based on the state of the target checkbox.
webmaster@1:     $(i)[ state ? 'addClass' : 'removeClass' ]('selected');
webmaster@1:     $('input:checkbox', i).each(function() {
webmaster@1:       this.checked = state;
webmaster@1:     });
webmaster@1: 
webmaster@1:     if (to.nodeType) {
webmaster@1:       // If we are at the end of the range, stop.
webmaster@1:       if (i == to) {
webmaster@1:         break;
webmaster@1:       }
webmaster@1:     }
webmaster@1:     // A faster alternative to doing $(i).filter(to).length.
webmaster@1:     else if (jQuery.filter(to, [i]).r.length) {
webmaster@1:       break;
webmaster@1:     }
webmaster@1:   }
webmaster@1: };