]> git.wh0rd.org Git - tt-rss.git/blob - feedlist.js
rework infinite scroll request synchronization
[tt-rss.git] / feedlist.js
1 var _feed_cur_page = 0;
2 var _infscroll_disable = 0;
3 var _infscroll_request_sent = 0;
4
5 function viewCategory(cat) {
6         active_feed_is_cat = true;
7         viewfeed(cat, '', true);
8         return false;
9 }
10
11 function feedlist_callback2(transport) {
12         try {
13                 debug("feedlist_callback2");
14                 var f = document.getElementById("feeds-frame");
15                 f.innerHTML = transport.responseText;
16                 feedlist_init();
17         } catch (e) {
18                 exception_error("feedlist_callback2", e);
19         }
20 }
21
22 function viewNextFeedPage() {
23         try {
24                 if (!getActiveFeedId()) return;
25
26                 notify_progress("Loading, please wait...");
27
28                 viewfeed(getActiveFeedId(), undefined, undefined, undefined,
29                         undefined, _feed_cur_page+1);
30
31         } catch (e) {
32                 exception_error(e, "viewFeedGoPage");
33         }
34 }
35
36 function viewfeed(feed, subop, is_cat, subop_param, skip_history, offset) {
37         try {
38
39 //              if (!offset) page_offset = 0;
40
41                 var page_offset = 0;
42
43                 if (offset > 0) {
44                         page_offset = offset;
45                 } else {
46                         page_offset = 0;
47                         _feed_cur_page = 0;
48                         _infscroll_disable = 0;
49                 }
50
51                 if (getActiveFeedId() != feed) {
52                         _feed_cur_page = 0;
53                         active_post_id = 0;
54                         _infscroll_disable = 0;
55                 }
56
57                 if (page_offset != 0 && !subop) {
58                         var date = new Date();
59                         var timestamp = Math.round(date.getTime() / 1000);
60
61                         debug("<b>" + _infscroll_request_sent + " : " + timestamp + "</b>");
62
63                         if (_infscroll_request_sent && _infscroll_request_sent + 30 > timestamp) {
64                                 debug("infscroll request in progress, aborting");
65                                 return;
66                         }
67
68                         _infscroll_request_sent = timestamp;                    
69                 }
70
71                 enableHotkeys();
72
73                 closeInfoBox();
74
75                 Form.enable("main_toolbar_form");
76
77                 var toolbar_form = document.forms["main_toolbar_form"];
78                 var toolbar_query = Form.serialize("main_toolbar_form");
79
80                 if (document.forms["main_toolbar_form"].query) {
81                         toolbar_form.query.value = "";
82                 }
83
84                 var query = "backend.php?op=viewfeed&feed=" + feed + "&" +
85                         toolbar_query + "&subop=" + param_escape(subop);
86
87                 if (document.getElementById("search_form")) {
88                         var search_query = Form.serialize("search_form");
89                         query = query + "&" + search_query;
90                         closeInfoBox(true);
91                 }
92
93 //              debug("IS_CAT_STORED: " + activeFeedIsCat() + ", IS_CAT: " + is_cat);
94
95                 if (subop == "MarkAllRead") {
96
97                         var feedlist = document.getElementById('feedList');
98                         
99                         var next_unread_feed = getRelativeFeedId(feedlist,
100                                         feed, "next", true);
101
102                         if (!next_unread_feed) {
103                                 next_unread_feed = getRelativeFeedId(feedlist,
104                                         -3, "next", true);
105                         }
106
107                         var show_next_feed = getInitParam("on_catchup_show_next_feed") == "1";
108
109                         if (next_unread_feed && show_next_feed && !activeFeedIsCat()) {
110                                 query = query + "&nuf=" + param_escape(next_unread_feed);
111                                 setActiveFeedId(next_unread_feed);
112                         }
113                 }
114
115                 if (is_cat) {
116                         query = query + "&cat=1";
117                 }
118
119                 if (page_offset != 0) {
120                         query = query + "&skip=" + page_offset;
121                 }
122
123                 var date = new Date();
124                 var timestamp = Math.round(date.getTime() / 1000);
125                 query = query + "&ts=" + timestamp
126                 
127                 disableContainerChildren("headlinesToolbar", false);
128                 Form.enable("main_toolbar_form");
129
130                 debug(query);
131
132                 // for piggybacked counters
133
134                 if (tagsAreDisplayed()) {
135                         query = query + "&omode=lt";
136                 } else {
137                         query = query + "&omode=flc";
138                 }
139
140                 if (!page_offset) {
141                         notify_progress("Loading, please wait...", true);
142                 }
143
144                 var container = document.getElementById("headlinesInnerContainer");
145
146                 if (container && page_offset == 0) {
147                         new Effect.Fade(container, {duration: 1, to: 0.01,
148                                 queue: { position:'end', scope: 'FeED-' + feed, limit: 1 } } );
149                 }
150
151                 new Ajax.Request(query, {
152                         onComplete: function(transport) { 
153                                 headlines_callback2(transport, feed, is_cat, page_offset); 
154                         } });
155
156         } catch (e) {
157                 exception_error("viewfeed", e);
158         }               
159 }
160
161 function toggleCollapseCat_af(effect) {
162         //var caption = elem.id.replace("FCATLIST-", "");
163
164         try {
165
166                 var elem = effect.element;
167                 var cat = elem.id.replace("FCATLIST-", "");
168                 var cap = document.getElementById("FCAP-" + cat);
169         
170                 if (Element.visible(elem)) {
171                         cap.innerHTML = cap.innerHTML.replace("...", "");
172                 } else {
173                         if (cap.innerHTML.lastIndexOf("...") != cap.innerHTML.length-3) {
174                                 cap.innerHTML = cap.innerHTML + "...";
175                         }
176                 }
177
178         } catch (e) {
179                 exception_error("toggleCollapseCat_af", e);
180         }
181 }
182
183 function toggleCollapseCat(cat) {
184         try {
185         
186                 var cat_elem = document.getElementById("FCAT-" + cat);
187                 var cat_list = document.getElementById("FCATLIST-" + cat).parentNode;
188                 var caption = document.getElementById("FCAP-" + cat);
189                 
190 /*              if (cat_list.className.match("invisible")) {
191                         cat_list.className = "";
192                         caption.innerHTML = caption.innerHTML.replace("...", "");
193                         if (cat == 0) {
194                                 setCookie("ttrss_vf_uclps", "0");
195                         }
196                 } else {
197                         cat_list.className = "invisible";
198                         caption.innerHTML = caption.innerHTML + "...";
199                         if (cat == 0) {
200                                 setCookie("ttrss_vf_uclps", "1");
201                         } 
202
203                 } */
204
205                 if (cat == 0) {
206                         if (Element.visible("FCATLIST-" + cat)) {
207                                 setCookie("ttrss_vf_uclps", "1");
208                         } else {
209                                 setCookie("ttrss_vf_uclps", "0");
210                         }
211                 } 
212
213                 if (cat == -2) {
214                         if (Element.visible("FCATLIST-" + cat)) {
215                                 setCookie("ttrss_vf_lclps", "1");
216                         } else {
217                                 setCookie("ttrss_vf_lclps", "0");
218                         }
219                 } 
220
221                 if (cat == -1) {
222                         if (Element.visible("FCATLIST-" + cat)) {
223                                 setCookie("ttrss_vf_vclps", "1");
224                         } else {
225                                 setCookie("ttrss_vf_vclps", "0");
226                         }
227                 } 
228
229                 Effect.toggle('FCATLIST-' + cat, 'blind', { duration: 0.5,
230                         afterFinish: toggleCollapseCat_af });
231
232                 new Ajax.Request("backend.php?op=feeds&subop=collapse&cid=" + 
233                         param_escape(cat));
234
235         } catch (e) {
236                 exception_error("toggleCollapseCat", e);
237         }
238 }
239
240 function feedlist_init() {
241         try {
242 //              if (arguments.callee.done) return;
243 //              arguments.callee.done = true;           
244                 
245                 debug("in feedlist init");
246                 
247                 hideOrShowFeeds(document, getInitParam("hide_read_feeds") == 1);
248                 document.onkeydown = hotkey_handler;
249                 setTimeout("timeout()", 0);
250
251                 debug("about to remove splash, OMG!");
252
253                 var o = document.getElementById("overlay");
254
255                 if (o) {
256                         o.style.display = "none";
257                         debug("removed splash!");
258                 }
259
260                 if (typeof correctPNG != 'undefined') {
261                         correctPNG();
262                 }
263
264                 if (getActiveFeedId()) {
265                         debug("some feed is open on feedlist refresh, reloading");
266                         setTimeout("viewCurrentFeed()", 100);
267                 } else {
268                         setTimeout("viewfeed(-3)", 100);
269                 }
270
271         } catch (e) {
272                 exception_error("feedlist/init", e);
273         }
274 }