1 // This file is part of Moodle - http://moodle.org/
3 // Moodle is free software: you can redistribute it and/or modify
4 // it under the terms of the GNU General Public License as published by
5 // the Free Software Foundation, either version 3 of the License, or
6 // (at your option) any later version.
8 // Moodle is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 // GNU General Public License for more details.
13 // You should have received a copy of the GNU General Public License
14 // along with Moodle. If not, see <http://www.gnu.org/licenses/>.
17 * AJAX helper for the inline editing a value.
19 * This script is automatically included from template core/inplace_editable
20 * It registers a click-listener on [data-inplaceeditablelink] link (the "inplace edit" icon),
21 * then replaces the displayed value with an input field. On "Enter" it sends a request
22 * to web service core_update_inplace_editable, which invokes the specified callback.
23 * Any exception thrown by the web service (or callback) is displayed as an error popup.
25 * @module core/inplace_editable
27 * @copyright 2016 Marina Glancy
28 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
31 define(['jquery', 'core/ajax', 'core/templates', 'core/notification', 'core/str', 'core/config', 'core/url'],
32 function($, ajax, templates, notification, str, cfg, url) {
34 $('body').on('click keypress', '[data-inplaceeditable] [data-inplaceeditablelink]', function(e) {
35 if (e.type === 'keypress' && e.keyCode !== 13) {
38 e.stopImmediatePropagation();
41 mainelement = target.closest('[data-inplaceeditable]');
43 var add_spinner = function(element) {
44 element.addClass('updating');
45 var spinner = element.find('img.spinner');
49 spinner = $('<img/>').attr('src', url.imageUrl('i/loading_small')).
50 addClass('spinner').addClass('iconsmall');
51 element.append(spinner);
55 var remove_spinner = function(element) {
56 element.removeClass('updating');
57 element.find('img.spinner').hide();
60 var update_value = function(mainelement, value) {
61 add_spinner(mainelement);
62 var promises = ajax.call([{
63 methodname: 'core_update_inplace_editable',
64 args: { itemid : mainelement.attr('data-itemid'),
65 component : mainelement.attr('data-component') ,
66 itemtype : mainelement.attr('data-itemtype') ,
70 $.when.apply($, promises)
71 .done( function(data) {
72 var oldvalue = mainelement.attr('data-value');
73 templates.render('core/inplace_editable', data).done(function(html, js) {
74 var newelement = $(html);
75 templates.replaceNode(mainelement, newelement, js);
76 newelement.find('[data-inplaceeditablelink]').focus();
77 newelement.trigger({type: 'updated', ajaxreturn: data, oldvalue: oldvalue});
79 }).fail(function(ex) {
80 var e = $.Event('updatefailed', { exception: ex, newvalue: value });
81 remove_spinner(mainelement);
82 mainelement.trigger(e);
83 if (!e.isDefaultPrevented()) {
84 notification.exception(ex);
89 var turn_editing_off = function(el) {
90 el.find('input').off();
91 el.find('select').off();
92 el.html(el.attr('data-oldcontent'));
93 el.removeAttr('data-oldcontent');
94 el.removeClass('inplaceeditingon');
95 el.find('[data-inplaceeditablelink]').focus();
98 var turn_editing_off_everywhere = function() {
99 $('span.inplaceeditable.inplaceeditingon').each(function() {
100 turn_editing_off($( this));
104 var unique_id = function(prefix, idlength) {
106 for (var i = 0; i < idlength; i++) {
107 uniqid += String(Math.floor(Math.random() * 10));
109 // Make sure this ID is not already taken by an existing element.
110 if ($("#" + uniqid).length === 0) {
113 return unique_id(prefix, idlength);
116 var turn_editing_on_text = function(el) {
117 str.get_string('edittitleinstructions').done(function(s) {
118 var instr = $('<span class="editinstructions">' + s + '</span>').
119 attr('id', unique_id('id_editinstructions_', 20)),
120 inputelement = $('<input type="text"/>').
121 attr('id', unique_id('id_inplacevalue_', 20)).
122 attr('value', el.attr('data-value')).
123 attr('aria-describedby', instr.attr('id')),
124 lbl = $('<label class="accesshide">' + mainelement.attr('data-editlabel') + '</label>').
125 attr('for', inputelement.attr('id'));
126 el.html('').append(instr).append(lbl).append(inputelement);
128 inputelement.focus();
129 inputelement.select();
130 inputelement.on('keyup keypress focusout', function(e) {
131 if (cfg.behatsiterunning && e.type === 'focusout') {
132 // Behat triggers focusout too often.
135 if (e.type === 'keypress' && e.keyCode === 13) {
136 // We need 'keypress' event for Enter because keyup/keydown would catch Enter that was
137 // pressed in other fields.
138 var val = inputelement.val();
139 turn_editing_off(el);
140 update_value(el, val);
142 if ((e.type === 'keyup' && e.keyCode === 27) || e.type === 'focusout') {
143 // We need 'keyup' event for Escape because keypress does not work with Escape.
144 turn_editing_off(el);
150 var turn_editing_on_toggle = function(el, newvalue) {
151 turn_editing_off(el);
152 update_value(el, newvalue);
155 var turn_editing_on_select = function(el, options) {
156 var inputelement = $('<select></select>').
157 attr('id', unique_id('id_inplacevalue_', 20)),
158 lbl = $('<label class="accesshide">' + mainelement.attr('data-editlabel') + '</label>').
159 attr('for', inputelement.attr('id'));
160 for (var i in options) {
161 inputelement.append($('<option>').attr('value', i).html(options[i]));
163 inputelement.val(el.attr('data-value'));
164 el.html('').append(lbl).append(inputelement);
166 inputelement.focus();
167 inputelement.select();
168 inputelement.on('keyup change focusout', function(e) {
169 if (cfg.behatsiterunning && e.type === 'focusout') {
170 // Behat triggers focusout too often.
173 if (e.type === 'change') {
174 var val = inputelement.val();
175 turn_editing_off(el);
176 update_value(el, val);
178 if ((e.type === 'keyup' && e.keyCode === 27) || e.type === 'focusout') {
179 // We need 'keyup' event for Escape because keypress does not work with Escape.
180 turn_editing_off(el);
185 var turn_editing_on = function(el) {
186 el.addClass('inplaceeditingon');
187 el.attr('data-oldcontent', el.html());
189 var type = el.attr('data-type');
190 var options = el.attr('data-options');
192 if (type === 'toggle') {
193 turn_editing_on_toggle(el, options);
194 } else if (type === 'select') {
195 turn_editing_on_select(el, $.parseJSON(options));
197 turn_editing_on_text(el);
201 // Turn editing on for the current element and register handler for Enter/Esc keys.
202 turn_editing_off_everywhere();
203 turn_editing_on(mainelement);
208 init_inplace_editable : function() {
209 $('[data-inplaceeditable]:not([data-loaded])').each(function() {
210 var el = $(this), link = el.find('[data-inplaceeditablelink]');
211 if (el.attr('data-type') === 'toggle') {
212 // For toggle elements wrap the displayvalue in the link instead of
213 // displaying edit link after the displayvalue.
215 link.html(el.html());
217 } else if (el.find('a').length === 1) {
218 // For non-toggle elements that do not have links in the displayvalue
219 // wrap displayvalue in the edit link.
221 link.html(el.html() + link.html());
224 el.attr('data-loaded', 1);