| /*global SelectBox, addEvent, gettext, interpolate, quickElement, SelectFilter*/ |
| /* |
| SelectFilter2 - Turns a multiple-select box into a filter interface. |
| |
| Requires core.js, SelectBox.js and addevent.js. |
| */ |
| (function($) { |
| 'use strict'; |
| function findForm(node) { |
| // returns the node of the form containing the given node |
| if (node.tagName.toLowerCase() !== 'form') { |
| return findForm(node.parentNode); |
| } |
| return node; |
| } |
| |
| window.SelectFilter = { |
| init: function(field_id, field_name, is_stacked) { |
| if (field_id.match(/__prefix__/)) { |
| // Don't initialize on empty forms. |
| return; |
| } |
| var from_box = document.getElementById(field_id); |
| from_box.id += '_from'; // change its ID |
| from_box.className = 'filtered'; |
| |
| var ps = from_box.parentNode.getElementsByTagName('p'); |
| for (var i = 0; i < ps.length; i++) { |
| if (ps[i].className.indexOf("info") !== -1) { |
| // Remove <p class="info">, because it just gets in the way. |
| from_box.parentNode.removeChild(ps[i]); |
| } else if (ps[i].className.indexOf("help") !== -1) { |
| // Move help text up to the top so it isn't below the select |
| // boxes or wrapped off on the side to the right of the add |
| // button: |
| from_box.parentNode.insertBefore(ps[i], from_box.parentNode.firstChild); |
| } |
| } |
| |
| // <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'; |
| var title_available = quickElement('h2', selector_available, interpolate(gettext('Available %s') + ' ', [field_name])); |
| quickElement( |
| 'span', title_available, '', |
| 'class', 'help help-tooltip help-icon', |
| 'title', interpolate( |
| gettext( |
| 'This is the list of available %s. You may choose some by ' + |
| 'selecting them in the box below and then clicking the ' + |
| '"Choose" arrow between the two boxes.' |
| ), |
| [field_name] |
| ) |
| ); |
| |
| var filter_p = quickElement('p', selector_available, '', 'id', field_id + '_filter'); |
| filter_p.className = 'selector-filter'; |
| |
| var search_filter_label = quickElement('label', filter_p, '', 'for', field_id + '_input'); |
| |
| quickElement( |
| 'span', search_filter_label, '', |
| 'class', 'help-tooltip search-label-icon', |
| 'title', interpolate(gettext("Type into this box to filter down the list of available %s."), [field_name]) |
| ); |
| |
| filter_p.appendChild(document.createTextNode(' ')); |
| |
| var filter_input = quickElement('input', filter_p, '', 'type', 'text', 'placeholder', gettext("Filter")); |
| filter_input.id = field_id + '_input'; |
| |
| selector_available.appendChild(from_box); |
| var choose_all = quickElement('a', selector_available, gettext('Choose all'), 'title', interpolate(gettext('Click to choose all %s at once.'), [field_name]), 'href', 'javascript:void(0);', 'id', field_id + '_add_all_link'); |
| 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('Choose'), 'title', gettext('Choose'), 'href', 'javascript:void(0);', 'id', field_id + '_add_link'); |
| add_link.className = 'selector-add'; |
| var remove_link = quickElement('a', quickElement('li', selector_chooser), gettext('Remove'), 'title', gettext('Remove'), 'href', 'javascript:void(0);', 'id', field_id + '_remove_link'); |
| remove_link.className = 'selector-remove'; |
| |
| // <div class="selector-chosen"> |
| var selector_chosen = quickElement('div', selector_div); |
| selector_chosen.className = 'selector-chosen'; |
| var title_chosen = quickElement('h2', selector_chosen, interpolate(gettext('Chosen %s') + ' ', [field_name])); |
| quickElement( |
| 'span', title_chosen, '', |
| 'class', 'help help-tooltip help-icon', |
| 'title', interpolate( |
| gettext( |
| 'This is the list of chosen %s. You may remove some by ' + |
| 'selecting them in the box below and then clicking the ' + |
| '"Remove" arrow between the two boxes.' |
| ), |
| [field_name] |
| ) |
| ); |
| |
| 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('Remove all'), 'title', interpolate(gettext('Click to remove all chosen %s at once.'), [field_name]), 'href', 'javascript:void(0);', 'id', field_id + '_remove_all_link'); |
| 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(choose_all, 'click', function() { SelectBox.move_all(field_id + '_from', field_id + '_to'); SelectFilter.refresh_icons(field_id); }); |
| addEvent(add_link, 'click', function() { SelectBox.move(field_id + '_from', field_id + '_to'); SelectFilter.refresh_icons(field_id); }); |
| addEvent(remove_link, 'click', function() { SelectBox.move(field_id + '_to', field_id + '_from'); SelectFilter.refresh_icons(field_id); }); |
| addEvent(clear_all, 'click', function() { SelectBox.move_all(field_id + '_to', field_id + '_from'); SelectFilter.refresh_icons(field_id); }); |
| addEvent(filter_input, 'keypress', function(e) { SelectFilter.filter_key_press(e, field_id); }); |
| 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, 'change', function(e) { SelectFilter.refresh_icons(field_id); }); |
| addEvent(to_box, 'change', function(e) { SelectFilter.refresh_icons(field_id); }); |
| addEvent(from_box, 'dblclick', function() { SelectBox.move(field_id + '_from', field_id + '_to'); SelectFilter.refresh_icons(field_id); }); |
| addEvent(to_box, 'dblclick', function() { SelectBox.move(field_id + '_to', field_id + '_from'); SelectFilter.refresh_icons(field_id); }); |
| 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'); |
| |
| if (!is_stacked) { |
| // In horizontal mode, give the same height to the two boxes. |
| var j_from_box = $(from_box); |
| var j_to_box = $(to_box); |
| var resize_filters = function() { j_to_box.height($(filter_p).outerHeight() + j_from_box.outerHeight()); }; |
| if (j_from_box.outerHeight() > 0) { |
| resize_filters(); // This fieldset is already open. Resize now. |
| } else { |
| // This fieldset is probably collapsed. Wait for its 'show' event. |
| j_to_box.closest('fieldset').one('show.fieldset', resize_filters); |
| } |
| } |
| |
| // Initial icon refresh |
| SelectFilter.refresh_icons(field_id); |
| }, |
| refresh_icons: function(field_id) { |
| var from = $('#' + field_id + '_from'); |
| var to = $('#' + field_id + '_to'); |
| var is_from_selected = from.find('option:selected').length > 0; |
| var is_to_selected = to.find('option:selected').length > 0; |
| // Active if at least one item is selected |
| $('#' + field_id + '_add_link').toggleClass('active', is_from_selected); |
| $('#' + field_id + '_remove_link').toggleClass('active', is_to_selected); |
| // Active if the corresponding box isn't empty |
| $('#' + field_id + '_add_all_link').toggleClass('active', from.find('option').length > 0); |
| $('#' + field_id + '_remove_all_link').toggleClass('active', to.find('option').length > 0); |
| }, |
| filter_key_press: function(event, field_id) { |
| var 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; |
| event.preventDefault(); |
| return false; |
| } |
| }, |
| filter_key_up: function(event, field_id) { |
| var from = document.getElementById(field_id + '_from'); |
| 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) { |
| var 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; |
| } |
| }; |
| |
| })(django.jQuery); |