| /* |
| SelectFilter2 - Turns a multiple-select box into a filter interface. |
| |
| Different than SelectFilter because this is coupled to the admin framework. |
| |
| Requires core.js, SelectBox.js and addevent.js. |
| */ |
| |
| function findForm(node) { |
| // returns the node of the form containing the given node |
| if (node.tagName.toLowerCase() != 'form') { |
| return findForm(node.parentNode); |
| } |
| return node; |
| } |
| |
| var SelectFilter = { |
| init: function(field_id, field_name, is_stacked, admin_media_prefix) { |
| if (field_id.match(/__prefix__/)){ |
| // Don't intialize on empty forms. |
| return; |
| } |
| var from_box = document.getElementById(field_id); |
| from_box.id += '_from'; // change its ID |
| from_box.className = 'filtered'; |
| |
| // Remove <p class="info">, because it just gets in the way. |
| var ps = from_box.parentNode.getElementsByTagName('p'); |
| for (var i=0; i<ps.length; i++) { |
| from_box.parentNode.removeChild(ps[i]); |
| } |
| |
| // <div class="selector"> or <div class="selector stacked"> |
| var selector_div = quickElement('div', from_box.parentNode); |
| selector_div.className = is_stacked ? 'selector stacked' : 'selector'; |
| |
| // <div class="selector-available"> |
| var selector_available = quickElement('div', selector_div, ''); |
| selector_available.className = 'selector-available'; |
| quickElement('h2', selector_available, interpolate(gettext('Available %s'), [field_name])); |
| var filter_p = quickElement('p', selector_available, ''); |
| filter_p.className = 'selector-filter'; |
| quickElement('img', filter_p, '', 'src', admin_media_prefix + 'img/admin/selector-search.gif'); |
| filter_p.appendChild(document.createTextNode(' ')); |
| var filter_input = quickElement('input', filter_p, '', 'type', 'text'); |
| filter_input.id = field_id + '_input'; |
| selector_available.appendChild(from_box); |
| var choose_all = quickElement('a', selector_available, gettext('Choose all'), 'href', 'javascript: (function(){ SelectBox.move_all("' + field_id + '_from", "' + field_id + '_to"); })()'); |
| choose_all.className = 'selector-chooseall'; |
| |
| // <ul class="selector-chooser"> |
| var selector_chooser = quickElement('ul', selector_div, ''); |
| selector_chooser.className = 'selector-chooser'; |
| var add_link = quickElement('a', quickElement('li', selector_chooser, ''), gettext('Add'), 'href', 'javascript: (function(){ SelectBox.move("' + field_id + '_from","' + field_id + '_to");})()'); |
| add_link.className = 'selector-add'; |
| var remove_link = quickElement('a', quickElement('li', selector_chooser, ''), gettext('Remove'), 'href', 'javascript: (function(){ SelectBox.move("' + field_id + '_to","' + field_id + '_from");})()'); |
| remove_link.className = 'selector-remove'; |
| |
| // <div class="selector-chosen"> |
| var selector_chosen = quickElement('div', selector_div, ''); |
| selector_chosen.className = 'selector-chosen'; |
| quickElement('h2', selector_chosen, interpolate(gettext('Chosen %s'), [field_name])); |
| var selector_filter = quickElement('p', selector_chosen, gettext('Select your choice(s) and click ')); |
| selector_filter.className = 'selector-filter'; |
| quickElement('img', selector_filter, '', 'src', admin_media_prefix + (is_stacked ? 'img/admin/selector_stacked-add.gif':'img/admin/selector-add.gif'), 'alt', 'Add'); |
| var to_box = quickElement('select', selector_chosen, '', 'id', field_id + '_to', 'multiple', 'multiple', 'size', from_box.size, 'name', from_box.getAttribute('name')); |
| to_box.className = 'filtered'; |
| var clear_all = quickElement('a', selector_chosen, gettext('Clear all'), 'href', 'javascript: (function() { SelectBox.move_all("' + field_id + '_to", "' + field_id + '_from");})()'); |
| clear_all.className = 'selector-clearall'; |
| |
| from_box.setAttribute('name', from_box.getAttribute('name') + '_old'); |
| |
| // Set up the JavaScript event handlers for the select box filter interface |
| addEvent(filter_input, 'keyup', function(e) { SelectFilter.filter_key_up(e, field_id); }); |
| addEvent(filter_input, 'keydown', function(e) { SelectFilter.filter_key_down(e, field_id); }); |
| addEvent(from_box, 'dblclick', function() { SelectBox.move(field_id + '_from', field_id + '_to'); }); |
| addEvent(to_box, 'dblclick', function() { SelectBox.move(field_id + '_to', field_id + '_from'); }); |
| addEvent(findForm(from_box), 'submit', function() { SelectBox.select_all(field_id + '_to'); }); |
| SelectBox.init(field_id + '_from'); |
| SelectBox.init(field_id + '_to'); |
| // Move selected from_box options to to_box |
| SelectBox.move(field_id + '_from', field_id + '_to'); |
| }, |
| filter_key_up: function(event, field_id) { |
| from = document.getElementById(field_id + '_from'); |
| // don't submit form if user pressed Enter |
| if ((event.which && event.which == 13) || (event.keyCode && event.keyCode == 13)) { |
| from.selectedIndex = 0; |
| SelectBox.move(field_id + '_from', field_id + '_to'); |
| from.selectedIndex = 0; |
| return false; |
| } |
| var temp = from.selectedIndex; |
| SelectBox.filter(field_id + '_from', document.getElementById(field_id + '_input').value); |
| from.selectedIndex = temp; |
| return true; |
| }, |
| filter_key_down: function(event, field_id) { |
| from = document.getElementById(field_id + '_from'); |
| // right arrow -- move across |
| if ((event.which && event.which == 39) || (event.keyCode && event.keyCode == 39)) { |
| var old_index = from.selectedIndex; |
| SelectBox.move(field_id + '_from', field_id + '_to'); |
| from.selectedIndex = (old_index == from.length) ? from.length - 1 : old_index; |
| return false; |
| } |
| // down arrow -- wrap around |
| if ((event.which && event.which == 40) || (event.keyCode && event.keyCode == 40)) { |
| from.selectedIndex = (from.length == from.selectedIndex + 1) ? 0 : from.selectedIndex + 1; |
| } |
| // up arrow -- wrap around |
| if ((event.which && event.which == 38) || (event.keyCode && event.keyCode == 38)) { |
| from.selectedIndex = (from.selectedIndex == 0) ? from.length - 1 : from.selectedIndex - 1; |
| } |
| return true; |
| } |
| } |