]> git.wh0rd.org Git - tt-rss.git/blob - feedlist.js
resize_headlines: add exception handling
[tt-rss.git] / feedlist.js
1 var _feed_cur_page = 0;
2 var _infscroll_disable = 0;
3 var _infscroll_request_sent = 0;
4 var feed_under_pointer = undefined;
5
6 var mouse_is_down = false;
7 var mouse_y = 0;
8 var mouse_x = 0;
9
10 var resize_enabled = false;
11
12 function viewCategory(cat) {
13         active_feed_is_cat = true;
14         viewfeed(cat, '', true);
15         return false;
16 }
17
18 function feedlist_callback2(transport) {
19         try {
20                 debug("feedlist_callback2");
21                 var f = document.getElementById("feeds-frame");
22                 f.innerHTML = transport.responseText;
23                 feedlist_init();
24         } catch (e) {
25                 exception_error("feedlist_callback2", e);
26         }
27 }
28
29 function viewNextFeedPage() {
30         try {
31                 //if (!getActiveFeedId()) return;
32
33                 debug("viewNextFeedPage: calling viewfeed(), p: " + _feed_cur_page+1);
34
35                 viewfeed(getActiveFeedId(), undefined, activeFeedIsCat(), undefined,
36                         undefined, _feed_cur_page+1);
37
38         } catch (e) {
39                 exception_error("viewNextFeedPage", e);
40         }
41 }
42
43 function viewfeed(feed, subop, is_cat, subop_param, skip_history, offset) {
44         try {
45
46 //              if (!offset) page_offset = 0;
47
48                 if (feed == getActiveFeedId()) {
49                         cache_invalidate("F:" + feed);
50                 }
51
52 /*              if (getInitParam("theme") == "" || getInitParam("theme") == "compact") {
53                         if (getInitParam("hide_feedlist") == 1) {
54                                 Element.hide("feeds-holder");
55                         }               
56                 } */
57
58                 var force_nocache = false;
59
60                 var page_offset = 0;
61
62                 if (offset > 0) {
63                         page_offset = offset;
64                 } else {
65                         page_offset = 0;
66                         _feed_cur_page = 0;
67                         _infscroll_disable = 0;
68                 }
69
70                 if (getActiveFeedId() != feed) {
71                         _feed_cur_page = 0;
72                         active_post_id = 0;
73                         _infscroll_disable = 0;
74                 }
75
76                 if (page_offset != 0 && !subop) {
77                         var date = new Date();
78                         var timestamp = Math.round(date.getTime() / 1000);
79
80                         debug("<b>" + _infscroll_request_sent + " : " + timestamp + "</b>");
81
82                         if (_infscroll_request_sent && _infscroll_request_sent + 30 > timestamp) {
83                                 debug("infscroll request in progress, aborting");
84                                 return;
85                         }
86
87                         _infscroll_request_sent = timestamp;                    
88                 }
89
90                 enableHotkeys();
91
92                 closeInfoBox();
93
94                 Form.enable("main_toolbar_form");
95
96                 var toolbar_form = document.forms["main_toolbar_form"];
97                 var toolbar_query = Form.serialize("main_toolbar_form");
98
99                 if (toolbar_form.query) {
100                         if (toolbar_form.query.value != "") {
101                                 force_nocache = true;
102                         }
103                         toolbar_form.query.value = "";
104                 }
105
106                 var query = "backend.php?op=viewfeed&feed=" + feed + "&" +
107                         toolbar_query + "&subop=" + param_escape(subop);
108
109                 if (document.getElementById("search_form")) {
110                         var search_query = Form.serialize("search_form");
111                         query = query + "&" + search_query;
112                         closeInfoBox(true);
113                         force_nocache = true;
114                 }
115
116 //              debug("IS_CAT_STORED: " + activeFeedIsCat() + ", IS_CAT: " + is_cat);
117
118                 if (subop == "MarkAllRead") {
119
120                         var feedlist = document.getElementById('feedList');
121                         
122                         var next_unread_feed = getRelativeFeedId(feedlist,
123                                         feed, "next", true);
124
125                         if (!next_unread_feed) {
126                                 next_unread_feed = getRelativeFeedId(feedlist,
127                                         -3, "next", true);
128                         }
129
130                         var show_next_feed = getInitParam("on_catchup_show_next_feed") == "1";
131
132                         if (next_unread_feed && show_next_feed && !activeFeedIsCat()) {
133                                 query = query + "&nuf=" + param_escape(next_unread_feed);
134                                 //setActiveFeedId(next_unread_feed);
135                                 feed = next_unread_feed;
136                         }
137                 }
138
139                 if (is_cat) {
140                         query = query + "&cat=1";
141                 }
142
143                 if (page_offset != 0) {
144                         query = query + "&skip=" + page_offset;
145
146                         // to prevent duplicate feed titles when showing grouped vfeeds
147                         if (vgroup_last_feed) {
148                                 query = query + "&vgrlf=" + param_escape(vgroup_last_feed);
149                         }
150                 }
151
152                 var date = new Date();
153                 var timestamp = Math.round(date.getTime() / 1000);
154                 query = query + "&ts=" + timestamp
155                 
156                 disableContainerChildren("headlinesToolbar", false);
157                 Form.enable("main_toolbar_form");
158
159                 // for piggybacked counters
160
161                 if (tagsAreDisplayed()) {
162                         query = query + "&omode=lt";
163                 } else {
164                         query = query + "&omode=flc";
165                 }
166
167                 debug(query);
168
169                 var container = document.getElementById("headlinesInnerContainer");
170
171 /*              if (container && page_offset == 0 && !isCdmMode()) {
172                         new Effect.Fade(container, {duration: 1, to: 0.01,
173                                 queue: { position:'end', scope: 'FEEDL-' + feed, limit: 1 } } );
174                 } */
175
176                 var unread_ctr = get_feed_unread(feed);
177                 var cache_check = false;
178
179                 if (unread_ctr != -1 && !page_offset && !force_nocache && !subop) {
180
181                         var cache_prefix = "";
182                                 
183                         if (is_cat) {
184                                 cache_prefix = "C:";
185                         } else {
186                                 cache_prefix = "F:";
187                         }
188
189                         cache_check = cache_check_param(cache_prefix + feed, unread_ctr);
190                         debug("headline cache check: " + cache_check);
191                 }
192
193                 if (cache_check) {
194                         var f = document.getElementById("headlines-frame");
195
196                         clean_feed_selections();
197
198                         setActiveFeedId(feed);
199                 
200                         if (is_cat != undefined) {
201                                 active_feed_is_cat = is_cat;
202                         }
203         
204                         if (!is_cat) {
205                                 var feedr = document.getElementById("FEEDR-" + feed);
206                                 if (feedr && !feedr.className.match("Selected")) {      
207                                         feedr.className = feedr.className + "Selected";
208                                 } 
209                         }
210
211                         f.innerHTML = cache_find_param(cache_prefix + feed, unread_ctr);
212
213                         var query = "backend.php?op=rpc&subop=getAllCounters";
214
215                         if (tagsAreDisplayed()) {
216                                 query = query + "&omode=tl";
217                         } else {
218                                 query = query + "&omode=flc";
219                         }
220
221                         new Ajax.Request(query, {
222                                 onComplete: function(transport) { 
223                                         try {
224                                                 all_counters_callback2(transport);
225                                         } catch (e) {
226                                                 exception_error("viewfeed/getcounters", e);
227                                         }
228                                 } });
229
230                 } else {
231
232                         if (!page_offset) {
233                                 notify_progress("Loading, please wait...", true);
234                         }
235
236                         new Ajax.Request(query, {
237                                 onComplete: function(transport) { 
238                                         headlines_callback2(transport, feed, is_cat, page_offset); 
239                                 } });
240                 }
241
242         } catch (e) {
243                 exception_error("viewfeed", e);
244         }               
245 }
246
247 function toggleCollapseCat_af(effect) {
248         //var caption = elem.id.replace("FCATLIST-", "");
249
250         try {
251
252                 var elem = effect.element;
253                 var cat = elem.id.replace("FCATLIST-", "");
254                 var cap = document.getElementById("FCAP-" + cat);
255
256                 if (Element.visible(elem)) {
257                         cap.innerHTML = cap.innerHTML.replace("…", "");
258                 } else {
259                         if (cap.innerHTML.lastIndexOf("…") != cap.innerHTML.length-3) {
260                                 cap.innerHTML = cap.innerHTML + "…";
261                         }
262                 }
263
264         } catch (e) {
265                 exception_error("toggleCollapseCat_af", e);
266         }
267 }
268
269 function toggleCollapseCat(cat) {
270         try {
271         
272                 var cat_elem = document.getElementById("FCAT-" + cat);
273                 var cat_list = document.getElementById("FCATLIST-" + cat).parentNode;
274                 var caption = document.getElementById("FCAP-" + cat);
275                 
276 /*              if (cat_list.className.match("invisible")) {
277                         cat_list.className = "";
278                         caption.innerHTML = caption.innerHTML.replace("...", "");
279                         if (cat == 0) {
280                                 setCookie("ttrss_vf_uclps", "0");
281                         }
282                 } else {
283                         cat_list.className = "invisible";
284                         caption.innerHTML = caption.innerHTML + "...";
285                         if (cat == 0) {
286                                 setCookie("ttrss_vf_uclps", "1");
287                         } 
288
289                 } */
290
291                 if (cat == 0) {
292                         if (Element.visible("FCATLIST-" + cat)) {
293                                 setCookie("ttrss_vf_uclps", "1");
294                         } else {
295                                 setCookie("ttrss_vf_uclps", "0");
296                         }
297                 } 
298
299                 if (cat == -2) {
300                         if (Element.visible("FCATLIST-" + cat)) {
301                                 setCookie("ttrss_vf_lclps", "1");
302                         } else {
303                                 setCookie("ttrss_vf_lclps", "0");
304                         }
305                 } 
306
307                 if (cat == -1) {
308                         if (Element.visible("FCATLIST-" + cat)) {
309                                 setCookie("ttrss_vf_vclps", "1");
310                         } else {
311                                 setCookie("ttrss_vf_vclps", "0");
312                         }
313                 } 
314
315                 Effect.toggle('FCATLIST-' + cat, 'blind', { duration: 0.5,
316                         afterFinish: toggleCollapseCat_af });
317
318                 new Ajax.Request("backend.php?op=feeds&subop=collapse&cid=" + 
319                         param_escape(cat));
320
321         } catch (e) {
322                 exception_error("toggleCollapseCat", e);
323         }
324 }
325
326 function feedlist_init() {
327         try {
328 //              if (arguments.callee.done) return;
329 //              arguments.callee.done = true;           
330                 
331                 loading_set_progress(90);
332
333                 debug("in feedlist init");
334                 
335                 hideOrShowFeeds(document, getInitParam("hide_read_feeds") == 1);
336                 document.onkeydown = hotkey_handler;
337                 document.onmousemove = mouse_move_handler;
338                 document.onmousedown = mouse_down_handler;
339                 document.onmouseup = mouse_up_handler;
340                 setTimeout("timeout()", 0);
341
342                 if (typeof correctPNG != 'undefined') {
343                         correctPNG();
344                 }
345
346                 if (getActiveFeedId()) {
347                         debug("some feed is open on feedlist refresh, reloading");
348                         setTimeout("viewCurrentFeed()", 100);
349                 } else {
350                         if (getInitParam("cdm_auto_catchup") != 1 && get_feed_unread(-3) > 0) {
351                                 notify_silent_next();
352                                 setTimeout("viewfeed(-3)", 100);
353                         } else {
354                                 remove_splash();
355                         }
356                 }
357
358                 if (getInitParam("theme") == "") {
359                         setTimeout("hide_footer()", 5000);
360                 }
361
362                 init_collapsable_feedlist(getInitParam("theme"));
363
364         } catch (e) {
365                 exception_error("feedlist/init", e);
366         }
367 }
368
369 function hide_footer_af(effect) {
370         try {
371                 var c = document.getElementById("content-frame");
372
373                 if (c) {
374                         c.style.bottom = "0px";
375                 } else {
376                         var h = document.getElementById("headlines-frame");
377
378                         if (h) {
379                                 h.style.bottom = "0px";
380                         }
381                 }
382
383         } catch (e) {
384                 exception_error("hide_footer_af", e);
385         }
386 }
387
388 function hide_footer() {
389         try {
390                 if (Element.visible("footer")) {
391                         new Effect.Fade("footer", { afterFinish: hide_footer_af });
392                 }
393         } catch (e) {
394                 exception_error("hide_footer", e);
395         }
396 }
397
398 /*
399 function init_hidden_feedlist(theme) {
400         try {
401                 debug("init_hidden_feedlist");
402
403                 if (theme != "" && theme != "compact") return;
404
405                 var fl = document.getElementById("feeds-holder");
406                 var fh = document.getElementById("headlines-frame");
407                 var fc = document.getElementById("content-frame");
408                 var ft = document.getElementById("toolbar");
409                 var ff = document.getElementById("footer");
410                 var fhdr = document.getElementById("header");
411
412                 var fbtn = document.getElementById("toggle_feeds_btn");
413
414                 if (fbtn) Element.show(fbtn);
415
416                 fl.style.top = fh.offsetTop + "px";
417                 fl.style.backgroundColor = "white"; //FIXME
418
419                 Element.hide(fl);
420                 
421                 fh.style.left = "0px";
422                 ft.style.left = "0px";
423                 if (fc) fc.style.left = "0px";
424                 if (ff) ff.style.left = "0px";
425
426                 if (theme == "compact") {
427                         fhdr.style.left = "10px";
428                         fl.style.top = (fh.offsetTop + 1) + "px";
429                 }
430
431         } catch (e) {
432                 exception_error("init_hidden_feedlist", e);
433         }
434 } */
435
436 function init_collapsable_feedlist(theme) {
437         try {
438                 debug("init_collapsable_feedlist");
439
440                 if (theme != "" && theme != "compact" && theme != "graycube" &&
441                                 theme != "compat") return;
442
443                 var fbtn = document.getElementById("collapse_feeds_btn");
444
445                 if (fbtn) Element.show(fbtn);
446
447                 if (getCookie("ttrss_vf_fclps") == 1) {
448                         collapse_feedlist();
449                 }
450
451         } catch (e) {
452                 exception_error("init_hidden_feedlist", e);
453         }
454
455 }
456
457 function mouse_move_handler(e) {
458         try {
459                 var client_y;
460                 var client_x;
461
462                 if (window.event) {
463                         client_y = window.event.clientY;
464                         client_x = window.event.clientX;
465                 } else if (e) {
466                         client_x = e.screenX;
467                         client_y = e.screenY;
468                 }
469
470                 if (mouse_is_down) {
471
472                         if (mouse_y == 0) mouse_y = client_y;
473                         if (mouse_x == 0) mouse_x = client_x;
474
475                         resize_headlines(mouse_x - client_x, mouse_y - client_y);
476
477                         mouse_y = client_y;
478                         mouse_x = client_x;
479
480                         return false;
481                 }
482
483         } catch (e) {
484                 exception_error("mouse_move_handler", e);
485         }
486 }
487
488 function enable_resize(b) {
489         resize_enabled = b;
490 }
491
492 function mouse_down_handler(e) {
493         try {
494                 if (resize_enabled) { 
495                         mouse_is_down = true;
496                         mouse_x = 0;
497                         mouse_y = 0;
498                         document.onselectstart = function() { return false; };
499                 }
500         } catch (e) {
501                 exception_error("mouse_move_handler", e);
502         }
503 }
504
505 function mouse_up_handler(e) {
506         try {
507                 mouse_is_down = false;
508                 document.onselectstart = null;
509         } catch (e) {
510                 exception_error("mouse_move_handler", e);
511         }
512 }