| blob | 91f87a4c9109a869003b3c2f6a4904ea345061ac |
1 // This file is part of Moodle - http://moodle.org/
2 //
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.
7 //
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.
12 //
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/>.
16 /**
17 * Comment Helper
18 * @author Dongsheng Cai <dongsheng@moodle.com>
19 */
20 M.core_comment = {
21 /**
22 * Initialize commenting system
23 */
24 init: function(Y, options) {
25 var CommentHelper = function(args) {
26 CommentHelper.superclass.constructor.apply(this, arguments);
27 };
28 CommentHelper.NAME = "COMMENT";
29 CommentHelper.ATTRS = {
30 options: {},
31 lang: {}
32 };
33 Y.extend(CommentHelper, Y.Base, {
34 api: M.cfg.wwwroot+'/comment/comment_ajax.php',
35 initializer: function(args) {
36 var scope = this;
37 this.client_id = args.client_id;
38 this.itemid = args.itemid;
39 this.commentarea = args.commentarea;
40 this.component = args.component;
41 this.courseid = args.courseid;
42 this.contextid = args.contextid;
43 this.autostart = (args.autostart);
44 // expand comments?
45 if (this.autostart) {
46 this.view(args.page);
47 }
48 // load comments
49 var handle = Y.one('#comment-link-'+this.client_id);
50 // hide toggle link
51 if (handle) {
52 if (args.notoggle) {
53 handle.setStyle('display', 'none');
54 }
55 handle.on('click', function(e) {
56 e.preventDefault();
57 this.view(0);
58 return false;
59 }, this);
60 }
61 scope.toggle_textarea(false);
62 },
63 post: function() {
64 var ta = Y.one('#dlg-content-'+this.client_id);
65 var scope = this;
66 var value = ta.get('value');
67 if (value && value != M.util.get_string('addcomment', 'moodle')) {
68 ta.set('disabled', true);
69 ta.setStyles({
70 'backgroundImage': 'url(' + M.util.image_url('i/loading_small', 'core') + ')',
71 'backgroundRepeat': 'no-repeat',
72 'backgroundPosition': 'center center'
73 });
74 var params = {'content': value};
75 this.request({
76 action: 'add',
77 scope: scope,
78 params: params,
79 callback: function(id, obj, args) {
80 var scope = args.scope;
81 var cid = scope.client_id;
82 var ta = Y.one('#dlg-content-'+cid);
83 ta.set('value', '');
84 ta.set('disabled', false);
85 ta.setStyle('backgroundImage', 'none');
86 scope.toggle_textarea(false);
87 var container = Y.one('#comment-list-'+cid);
88 var result = scope.render([obj], true);
89 var newcomment = Y.Node.create(result.html);
90 container.appendChild(newcomment);
91 var ids = result.ids;
92 var linkText = Y.one('#comment-link-text-' + cid);
93 if (linkText) {
94 linkText.set('innerHTML', M.util.get_string('commentscount', 'moodle', obj.count));
95 }
96 for(var i in ids) {
97 var attributes = {
98 color: { to: '#06e' },
99 backgroundColor: { to: '#FFE390' }
100 };
101 var anim = new Y.YUI2.util.ColorAnim(ids[i], attributes);
102 anim.animate();
103 }
104 scope.register_pagination();
105 scope.register_delete_buttons();
106 }
107 }, true);
108 } else {
109 var attributes = {
110 backgroundColor: { from: '#FFE390', to:'#FFFFFF' }
111 };
112 var anim = new Y.YUI2.util.ColorAnim('dlg-content-'+cid, attributes);
113 anim.animate();
114 }
115 },
116 request: function(args, noloading) {
117 var params = {};
118 var scope = this;
119 if (args['scope']) {
120 scope = args['scope'];
121 }
122 //params['page'] = args.page?args.page:'';
123 // the form element only accept certain file types
124 params['sesskey'] = M.cfg.sesskey;
125 params['action'] = args.action?args.action:'';
126 params['client_id'] = this.client_id;
127 params['itemid'] = this.itemid;
128 params['area'] = this.commentarea;
129 params['courseid'] = this.courseid;
130 params['contextid'] = this.contextid;
131 params['component'] = this.component;
132 if (args['params']) {
133 for (i in args['params']) {
134 params[i] = args['params'][i];
135 }
136 }
137 var cfg = {
138 method: 'POST',
139 on: {
140 complete: function(id,o,p) {
141 if (!o) {
142 alert('IO FATAL');
143 return false;
144 }
145 var data = Y.JSON.parse(o.responseText);
146 if (data.error) {
147 if (data.error == 'require_login') {
148 args.callback(id,data,p);
149 return true;
150 }
151 alert(data.error);
152 return false;
153 } else {
154 args.callback(id,data,p);
155 return true;
156 }
157 }
158 },
159 arguments: {
160 scope: scope
161 },
162 headers: {
163 'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8'
164 },
165 data: build_querystring(params)
166 };
167 if (args.form) {
168 cfg.form = args.form;
169 }
170 Y.io(this.api, cfg);
171 if (!noloading) {
172 this.wait();
173 }
174 },
175 render: function(list, newcmt) {
176 var ret = {};
177 ret.ids = [];
178 var template = Y.one('#cmt-tmpl');
179 var html = '';
180 for(var i in list) {
181 var htmlid = 'comment-'+list[i].id+'-'+this.client_id;
182 var val = template.get('innerHTML');
183 if (list[i].profileurl) {
184 val = val.replace('___name___', '<a href="'+list[i].profileurl+'">'+list[i].fullname+'</a>');
185 } else {
186 val = val.replace('___name___', list[i].fullname);
187 }
188 if (list[i]['delete']||newcmt) {
189 list[i].content = '<div class="comment-delete"><a href="#" id ="comment-delete-'+this.client_id+'-'+list[i].id+'" title="'+M.util.get_string('deletecomment', 'moodle')+'"><img alt="" src="'+M.util.image_url('t/delete', 'core')+'" /></a></div>' + list[i].content;
190 }
191 val = val.replace('___time___', list[i].time);
192 val = val.replace('___picture___', list[i].avatar);
193 val = val.replace('___content___', list[i].content);
194 val = '<li id="'+htmlid+'">'+val+'</li>';
195 ret.ids.push(htmlid);
196 html = (val+html);
197 }
198 ret.html = html;
199 return ret;
200 },
201 load: function(page) {
202 var scope = this;
203 var container = Y.one('#comment-ctrl-'+this.client_id);
204 var params = {
205 'action': 'get',
206 'page': page
207 };
208 this.request({
209 scope: scope,
210 params: params,
211 callback: function(id, ret, args) {
212 var linkText = Y.one('#comment-link-text-' + scope.client_id);
213 if (ret.count && linkText) {
214 linkText.set('innerHTML', M.util.get_string('commentscount', 'moodle', ret.count));
215 }
216 var container = Y.one('#comment-list-'+scope.client_id);
217 var pagination = Y.one('#comment-pagination-'+scope.client_id);
218 if (ret.pagination) {
219 pagination.set('innerHTML', ret.pagination);
220 } else {
221 //empty paging bar
222 pagination.set('innerHTML', '');
223 }
224 if (ret.error == 'require_login') {
225 var result = {};
226 result.html = M.util.get_string('commentsrequirelogin', 'moodle');
227 } else {
228 var result = scope.render(ret.list);
229 }
230 container.set('innerHTML', result.html);
231 var img = Y.one('#comment-img-'+scope.client_id);
232 if (img) {
233 img.set('src', M.util.image_url('t/expanded', 'core'));
234 }
235 args.scope.register_pagination();
236 args.scope.register_delete_buttons();
237 }
238 });
239 },
241 dodelete: function(id) { // note: delete is a reserved word in javascript, chrome and safary do not like it at all here!
242 var scope = this,
243 cid = scope.client_id,
244 params = {'commentid': id};
245 function remove_dom(type, anim, cmt) {
246 cmt.remove();
247 var linkText = Y.one('#comment-link-text-' + cid),
248 comments = Y.all('#comment-list-' + cid + ' li');
249 if (linkText && comments) {
250 linkText.set('innerHTML', M.util.get_string('commentscount', 'moodle', comments.size()));
251 }
252 }
253 this.request({
254 action: 'delete',
255 scope: scope,
256 params: params,
257 callback: function(id, resp, args) {
258 var htmlid= 'comment-'+resp.commentid+'-'+resp.client_id;
259 var attributes = {
260 width:{to:0},
261 height:{to:0}
262 };
263 var cmt = Y.one('#'+htmlid);
264 cmt.setStyle('overflow', 'hidden');
265 var anim = new Y.YUI2.util.Anim(htmlid, attributes, 1, Y.YUI2.util.Easing.easeOut);
266 anim.onComplete.subscribe(remove_dom, cmt, this);
267 anim.animate();
268 }
269 }, true);
270 },
271 register_actions: function() {
272 // add new comment
273 var action_btn = Y.one('#comment-action-post-'+this.client_id);
274 if (action_btn) {
275 action_btn.on('click', function(e) {
276 e.preventDefault();
277 this.post();
278 return false;
279 }, this);
280 }
281 // cancel comment box
282 var cancel = Y.one('#comment-action-cancel-'+this.client_id);
283 if (cancel) {
284 cancel.on('click', function(e) {
285 e.preventDefault();
286 this.view(0);
287 return false;
288 }, this);
289 }
290 },
291 register_delete_buttons: function() {
292 var scope = this;
293 // page buttons
294 Y.all('div.comment-delete a').each(
295 function(node, id) {
296 var theid = node.get('id');
297 var parseid = new RegExp("comment-delete-"+scope.client_id+"-(\\d+)", "i");
298 var commentid = theid.match(parseid);
299 if (!commentid) {
300 return;
301 }
302 if (commentid[1]) {
303 Y.Event.purgeElement('#'+theid, false, 'click');
304 }
305 node.on('click', function(e) {
306 e.preventDefault();
307 if (commentid[1]) {
308 scope.dodelete(commentid[1]);
309 }
310 });
311 // Also handle space/enter key.
312 node.on('key', function(e) {
313 e.preventDefault();
314 if (commentid[1]) {
315 scope.dodelete(commentid[1]);
316 }
317 }, '13,32');
318 // 13 and 32 are the keycodes for space and enter.
319 }
320 );
321 },
322 register_pagination: function() {
323 var scope = this;
324 // page buttons
325 Y.all('#comment-pagination-'+this.client_id+' a').each(
326 function(node, id) {
327 node.on('click', function(e, node) {
328 e.preventDefault();
329 var id = node.get('id');
330 var re = new RegExp("comment-page-"+this.client_id+"-(\\d+)", "i");
331 var result = id.match(re);
332 this.load(result[1]);
333 }, scope, node);
334 }
335 );
336 },
337 view: function(page) {
338 var container = Y.one('#comment-ctrl-'+this.client_id);
339 var ta = Y.one('#dlg-content-'+this.client_id);
340 var img = Y.one('#comment-img-'+this.client_id);
341 var d = container.getStyle('display');
342 if (d=='none'||d=='') {
343 // show
344 if (!this.autostart) {
345 this.load(page);
346 } else {
347 this.register_delete_buttons();
348 this.register_pagination();
349 }
350 container.setStyle('display', 'block');
351 if (img) {
352 img.set('src', M.util.image_url('t/expanded', 'core'));
353 }
354 } else {
355 // hide
356 container.setStyle('display', 'none');
357 var collapsedimage = 't/collapsed'; // ltr mode
358 if ( Y.one(document.body).hasClass('dir-rtl') ) {
359 collapsedimage = 't/collapsed_rtl';
360 } else {
361 collapsedimage = 't/collapsed';
362 }
363 img.set('src', M.util.image_url(collapsedimage, 'core'));
364 if (ta) {
365 ta.set('value','');
366 }
367 }
368 if (ta) {
369 //toggle_textarea.apply(ta, [false]);
370 //// reset textarea size
371 ta.on('focus', function() {
372 this.toggle_textarea(true);
373 }, this);
374 //ta.onkeypress = function() {
375 //if (this.scrollHeight > this.clientHeight && !window.opera)
376 //this.rows += 1;
377 //}
378 ta.on('blur', function() {
379 this.toggle_textarea(false);
380 }, this);
381 }
382 this.register_actions();
383 return false;
384 },
385 toggle_textarea: function(focus) {
386 var t = Y.one('#dlg-content-'+this.client_id);
387 if (!t) {
388 return false;
389 }
390 if (focus) {
391 if (t.get('value') == M.util.get_string('addcomment', 'moodle')) {
392 t.set('value', '');
393 t.setStyle('color', 'black');
394 }
395 }else{
396 if (t.get('value') == '') {
397 t.set('value', M.util.get_string('addcomment', 'moodle'));
398 t.setStyle('color','grey');
399 t.set('rows', 2);
400 }
401 }
402 },
403 wait: function() {
404 var container = Y.one('#comment-list-'+this.client_id);
405 container.set('innerHTML', '<div class="mdl-align"><img src="'+M.util.image_url('i/loading_small', 'core')+'" /></div>');
406 }
407 });
409 new CommentHelper(options);
410 },
411 init_admin: function(Y) {
412 var select_all = Y.one('#comment_select_all');
413 select_all.on('click', function(e) {
414 var comments = document.getElementsByName('comments');
415 var checked = false;
416 for (var i in comments) {
417 if (comments[i].checked) {
418 checked=true;
419 }
420 }
421 for (i in comments) {
422 comments[i].checked = !checked;
423 }
424 this.set('checked', !checked);
425 });
427 var comments_delete = Y.one('#comments_delete');
428 if (comments_delete) {
429 comments_delete.on('click', function(e) {
430 e.preventDefault();
431 var list = '';
432 var comments = document.getElementsByName('comments');
433 for (var i in comments) {
434 if (typeof comments[i] == 'object' && comments[i].checked) {
435 list += (comments[i].value + '-');
436 }
437 }
438 if (!list) {
439 return;
440 }
441 var args = {};
442 args.message = M.util.get_string('confirmdeletecomments', 'admin');
443 args.callback = function() {
444 var url = M.cfg.wwwroot + '/comment/index.php';
446 var data = {
447 'commentids': list,
448 'sesskey': M.cfg.sesskey,
449 'action': 'delete'
450 };
451 var cfg = {
452 method: 'POST',
453 on: {
454 complete: function(id,o,p) {
455 if (!o) {
456 alert('IO FATAL');
457 return;
458 }
459 if (o.responseText == 'yes') {
460 location.reload();
461 }
462 }
463 },
464 arguments: {
465 scope: this
466 },
467 headers: {
468 'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8'
469 },
470 data: build_querystring(data)
471 };
472 Y.io(url, cfg);
473 };
474 M.util.show_confirm_dialog(e, args);
475 });
476 }
477 }
478 };