MDL-42711 ported less style for chat from learnmoodle. added ability to choose course...
[moodle.git] / mod / chat / gui_ajax / module.js
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1
2/*
3 * NOTE: the /mod/chat/gui_header_js/ is not a real plugin,
4 * ideally this code should be in /mod/chat/module.js
5 */
6
7/**
8 * @namespace M.mod_chat_ajax
9 */
10M.mod_chat_ajax = M.mod_chat_ajax || {};
11
579a4976 12/**
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13 * Init ajax based Chat UI.
14 * @namespace M.mod_chat_ajax
15 * @function
16 * @param {YUI} Y
17 * @param {Object} cfg configuration data
579a4976 18 */
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19M.mod_chat_ajax.init = function(Y, cfg) {
20
21 var gui_ajax = {
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22
23 // Properties
467902f2 24 api : M.cfg.wwwroot+'/mod/chat/chat_ajax.php?sesskey='+M.cfg.sesskey, // The path to the ajax callback script
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25 cfg : {}, // A configuration variable
26 interval : null, // The interval object for refreshes
27 layout : null, // A reference to the layout used in this module
28 messages : [], // An array of messages
29 scrollable : true, // True is scrolling should occur
30 thememenu : null, // A reference to the menu for changing themes
31
32 // Elements
33 messageinput : null,
34 sendbutton : null,
35 messagebox : null,
36
2daed78a 37 init : function(cfg) {
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38 this.cfg = cfg;
39 this.cfg.req_count = this.cfg.req_count || 0;
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40 participantswidth = 180;
41 if (Y.one('#input-message').get('docWidth') < 640) {
42 participantswidth = 120;
43 }
69ccc32d 44 this.layout = new Y.YUI2.widget.Layout({
579a4976 45 units : [
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46 {position: 'right', width: participantswidth, resize: true, gutter: '1px', scroll: true, body: 'chat-userlist', animate: false},
47 {position: 'bottom', height: 42, resize: false, body: 'chat-input-area', gutter: '1px', collapse: false, resize: false},
48 {position: 'center', body: 'chat-messages', gutter: '0px', scroll: true}
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49 ]
50 });
51
52 this.layout.on('render', function() {
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53 var unit = this.getUnitByPosition('right');
54 if (unit) {
55 unit.on('close', function() {
56 closeLeft();
57 });
58 }
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59 }, this.layout);
60 this.layout.render();
61
62 // Gather the general elements
63 this.messageinput = Y.one('#input-message');
64 this.sendbutton = Y.one('#button-send');
65 this.messagebox = Y.one('#chat-messages');
66
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67 // Set aria attributes to messagebox and chat-userlist
68 this.messagebox.set('role', 'log');
69 this.messagebox.set('aria-live', 'polite');
70 var userlist = Y.one('#chat-userlist');
71 userlist.set('aria-live', 'polite');
72 userlist.set('aria-relevant', 'all');
73
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74 // Attach the default events for this module
75 this.sendbutton.on('click', this.send, this);
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76 this.messagebox.on('mouseenter', function() {
77 this.scrollable = false;
78 }, this);
79 this.messagebox.on('mouseleave', function() {
80 this.scrollable = true;
81 }, this);
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82
83 // Send the message when the enter key is pressed
84 Y.on('key', this.send, this.messageinput, 'press:13', this);
85
86 document.title = this.cfg.chatroom_name;
87
88 // Prepare and execute the first AJAX request of information
89 Y.io(this.api,{
90 method : 'POST',
91 data : build_querystring({
92 action : 'init',
93 chat_init : 1,
94 chat_sid : this.cfg.sid,
95 theme : this.theme
96 }),
97 on : {
98 success : function(tid, outcome) {
5be94998 99 this.messageinput.removeAttribute('disabled');
579a4976 100 this.messageinput.set('value', '');
c67a139c 101 this.messageinput.focus();
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102 try {
103 var data = Y.JSON.parse(outcome.responseText);
104 } catch (ex) {
105 return;
106 }
107 this.update_users(data.users);
108 }
109 },
110 context : this
111 });
112
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113 var scope = this;
114 this.interval = setInterval(function() {
115 scope.update_messages();
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116 }, this.cfg.timer, this);
117
118 // Create and initalise theme changing menu
69ccc32d 119 this.thememenu = new Y.YUI2.widget.Menu('basicmenu', {xy:[0,0]});
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120 this.thememenu.addItems([
121 {text: "Bubble", url: this.cfg.chaturl+'&theme=bubble'},
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122 {text: "Compact", url: this.cfg.chaturl+'&theme=compact'},
123 {text: "Course theme", url: this.cfg.chaturl+'&theme=course_theme'}
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124 ]);
125 this.thememenu.render(document.body);
126 Y.one('#choosetheme').on('click', function(e){
127 this.moveTo((e.pageX-20), (e.pageY-20));
128 this.show();
129 }, this.thememenu);
130 },
131
132 append_message : function(key, message, row) {
133 var item = Y.Node.create('<li id="mdl-chat-entry-'+key+'">'+message.message+'</li>');
134 item.addClass((message.mymessage)?'mdl-chat-my-entry':'mdl-chat-entry');
135 Y.one('#messages-list').append(item);
136 if (message.type && message.type == 'beep') {
137 Y.one('#chat-notify').setContent('<embed src="../beep.wav" autostart="true" hidden="true" name="beep" />');
138 }
139 },
140
141 send : function(e, beep) {
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142 this.sendbutton.set('value', this.cfg.theme);
143// alert(this.cfg.theme);
579a4976 144 var data = {
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145 chat_message : (!beep)?this.messageinput.get('value'):'',
146 chat_sid : this.cfg.sid,
147 theme : this.cfg.theme
148 };
149 if (beep) {
150 data.beep = beep
151 }
467902f2 152 data.action = 'chat';
579a4976 153
467902f2 154 Y.io(this.api, {
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155 method : 'POST',
156 data : build_querystring(data),
157 on : {
158 success : this.send_callback
159 },
160 context : this
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161 });
162 },
163
164 send_callback : function(tid, outcome, args) {
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165 try {
166 var data = Y.JSON.parse(outcome.responseText);
167 } catch (ex) {
168 return;
579a4976 169 }
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170 this.sendbutton.set('value', M.str.chat.send);
171 this.messageinput.set('value', '');
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172 clearInterval(this.interval);
173 this.update_messages();
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174 var scope = this;
175 this.interval = setInterval(function() {
176 scope.update_messages();
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177 }, this.cfg.timer, this);
178 },
179
e8a4928d 180 talkto: function (e, name) {
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181 this.messageinput.set('value', "To "+name+": ");
182 this.messageinput.focus();
183 },
184
185 update_messages : function() {
186 this.cfg.req_count++;
467902f2 187 Y.io(this.api, {
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188 method : 'POST',
189 data : build_querystring({
467902f2 190 action: 'update',
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191 chat_lastrow : this.cfg.chat_lastrow || false,
192 chat_lasttime : this.cfg.chat_lasttime,
193 chat_sid : this.cfg.sid,
194 theme : this.cfg.theme
195 }),
196 on : {
197 success : this.update_messages_callback
198 },
199 context : this
200 });
201 },
202
203 update_messages_callback : function(tid, outcome) {
204 try {
205 var data = Y.JSON.parse(outcome.responseText);
206 } catch (ex) {
207 return;
208 }
209 if (data.error) {
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210 clearInterval(this.interval);
211 alert(data.error);
212 window.location = this.cfg.home;
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213 }
214 this.cfg.chat_lasttime = data.lasttime;
215 this.cfg.chat_lastrow = data.lastrow;
216 // Update messages
217 for (var key in data.msgs){
2daed78a 218 if (!M.util.in_array(key, this.messages)) {
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219 this.messages.push(key);
220 this.append_message(key, data.msgs[key], data.lastrow);
221 }
222 }
223 // Update users
224 this.update_users(data.users);
225 // Scroll to the bottom of the message list
226 if (this.scrollable) {
227 Y.Node.getDOMNode(this.messagebox).parentNode.scrollTop+=500;
228 }
229 this.messageinput.focus();
230 },
231
232 update_users : function(users) {
2daed78a 233 if (!users) {
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234 return;
235 }
236 var list = Y.one('#users-list');
237 list.get('children').remove();
238 for (var i in users) {
239 var li = Y.Node.create('<li><table><tr><td>'+users[i].picture+'</td><td></td></tr></table></li>');
240 if (users[i].id == this.cfg.userid) {
241 li.all('td').item(1).append(Y.Node.create('<strong><a target="_blank" href="'+users[i].url+'">'+ users[i].name+'</a></strong>'));
242 } else {
243 li.all('td').item(1).append(Y.Node.create('<div><a target="_blank" href="'+users[i].url+'">'+users[i].name+'</a></div>'));
9d3b8b24 244 var talk = Y.Node.create('<a href="###">'+M.str.chat.talk+'</a>');
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245 talk.on('click', this.talkto, this, users[i].name);
246 var beep = Y.Node.create('<a href="###">'+M.str.chat.beep+'</a>');
247 beep.on('click', this.send, this, users[i].id);
9d3b8b24 248 li.all('td').item(1).append(Y.Node.create('<div></div>').append(talk).append('&nbsp;').append(beep));
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249 }
250 list.append(li);
251 }
252 }
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253
254 };
255
256 gui_ajax.init(cfg);
257};