SelectFilter2.js
246 lines
| 12.0 KiB
| application/javascript
|
JavascriptLexer
| r338 | /*global SelectBox, gettext, interpolate, quickElement, SelectFilter*/ | |||
| /* | ||||
| SelectFilter2 - Turns a multiple-select box into a filter interface. | ||||
| Requires jQuery, core.js, and SelectBox.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', '#', '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', '#', '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', '#', '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', '#', '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 | ||||
| var move_selection = function(e, elem, move_func, from, to) { | ||||
| if (elem.className.indexOf('active') !== -1) { | ||||
| move_func(from, to); | ||||
| SelectFilter.refresh_icons(field_id); | ||||
| } | ||||
| e.preventDefault(); | ||||
| }; | ||||
| choose_all.addEventListener('click', function(e) { | ||||
| move_selection(e, this, SelectBox.move_all, field_id + '_from', field_id + '_to'); | ||||
| }); | ||||
| add_link.addEventListener('click', function(e) { | ||||
| move_selection(e, this, SelectBox.move, field_id + '_from', field_id + '_to'); | ||||
| }); | ||||
| remove_link.addEventListener('click', function(e) { | ||||
| move_selection(e, this, SelectBox.move, field_id + '_to', field_id + '_from'); | ||||
| }); | ||||
| clear_all.addEventListener('click', function(e) { | ||||
| move_selection(e, this, SelectBox.move_all, field_id + '_to', field_id + '_from'); | ||||
| }); | ||||
| filter_input.addEventListener('keypress', function(e) { | ||||
| SelectFilter.filter_key_press(e, field_id); | ||||
| }); | ||||
| filter_input.addEventListener('keyup', function(e) { | ||||
| SelectFilter.filter_key_up(e, field_id); | ||||
| }); | ||||
| filter_input.addEventListener('keydown', function(e) { | ||||
| SelectFilter.filter_key_down(e, field_id); | ||||
| }); | ||||
| selector_div.addEventListener('change', function(e) { | ||||
| if (e.target.tagName === 'SELECT') { | ||||
| SelectFilter.refresh_icons(field_id); | ||||
| } | ||||
| }); | ||||
| selector_div.addEventListener('dblclick', function(e) { | ||||
| if (e.target.tagName === 'OPTION') { | ||||
| if (e.target.closest('select').id === field_id + '_to') { | ||||
| SelectBox.move(field_id + '_to', field_id + '_from'); | ||||
| } else { | ||||
| SelectBox.move(field_id + '_from', field_id + '_to'); | ||||
| } | ||||
| SelectFilter.refresh_icons(field_id); | ||||
| } | ||||
| }); | ||||
| findForm(from_box).addEventListener('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 = $('#' + field_id + '_from'); | ||||
| var j_to_box = $('#' + field_id + '_to'); | ||||
| j_to_box.height($(filter_p).outerHeight() + j_from_box.outerHeight()); | ||||
| } | ||||
| // Initial icon refresh | ||||
| SelectFilter.refresh_icons(field_id); | ||||
| }, | ||||
| any_selected: function(field) { | ||||
| var any_selected = false; | ||||
| try { | ||||
| // Temporarily add the required attribute and check validity. | ||||
| // This is much faster in WebKit browsers than the fallback. | ||||
| field.attr('required', 'required'); | ||||
| any_selected = field.is(':valid'); | ||||
| field.removeAttr('required'); | ||||
| } catch (e) { | ||||
| // Browsers that don't support :valid (IE < 10) | ||||
| any_selected = field.find('option:selected').length > 0; | ||||
| } | ||||
| return any_selected; | ||||
| }, | ||||
| refresh_icons: function(field_id) { | ||||
| var from = $('#' + field_id + '_from'); | ||||
| var to = $('#' + field_id + '_to'); | ||||
| // Active if at least one item is selected | ||||
| $('#' + field_id + '_add_link').toggleClass('active', SelectFilter.any_selected(from)); | ||||
| $('#' + field_id + '_remove_link').toggleClass('active', SelectFilter.any_selected(to)); | ||||
| // 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; | ||||
| } | ||||
| }; | ||||
| window.addEventListener('load', function(e) { | ||||
| $('select.selectfilter, select.selectfilterstacked').each(function() { | ||||
| var $el = $(this), | ||||
| data = $el.data(); | ||||
| SelectFilter.init($el.attr('id'), data.fieldName, parseInt(data.isStacked, 10)); | ||||
| }); | ||||
| }); | ||||
| })(django.jQuery); | ||||
