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[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 var selection_disabled = false;
12 var counters_last_request = 0;
13
14 function toggle_sortable_feedlist(enabled) {
15         try {
16
17                 if (enabled) {
18                         Sortable.create('feedList', {onChange: feedlist_dragsorted, only: "feedCat"});
19                 } else {
20                         Sortable.destroy('feedList');
21                 }
22
23         } catch (e) {
24                 exception_error("toggle_sortable_feedlist", e);
25         }
26 }
27
28 function viewCategory(cat) {
29         viewfeed(cat, '', true);
30         return false;
31 }
32
33 function render_offline_feedlist() {
34         try {
35                 var tmp = "<ul class=\"feedList\" id=\"feedList\">";
36
37                 var rs = db.execute("SELECT id,title,has_icon FROM feeds ORDER BY title");
38
39                 while (rs.isValidRow()) {
40
41                         var id = rs.field(0);
42                         var title = rs.field(1);
43                         var has_icon = rs.field(2);
44
45                         var rs_u = db.execute("SELECT SUM(unread) FROM articles WHERE feed_id = ?",
46                                 [id]);
47                         var unread = 0;
48
49                         if (rs.isValidRow()) {
50                                 unread = rs_u.field(0);
51                                 if (!unread) unread = 0;
52                         }
53
54                         var feed_icon = "";
55
56                         if (has_icon) {
57                                 feed_icon = "<img id='FIMG-"+id+"' src='" + "icons/" + id + ".ico'>";
58                         } else {
59                                 feed_icon = "<img id='FIMG-"+id+"' src='images/blank_icon.gif'>";
60                         }
61
62                         var row_class = "feed";
63
64                         if (unread > 0) {
65                                 row_class += "Unread";
66                                 fctr_class = "feedCtrHasUnread";
67                         } else {
68                                 fctr_class = "feedCtrNoUnread";
69                         }
70
71                         var link = "<a title=\"FIXME\" id=\"FEEDL-"+id+"\""+
72                                 "href=\"javascript:viewfeed('"+id+"', '', false, '', false, 0);\">"+
73                                 title + "</a>";
74
75                         tmp += "<li id='FEEDR-"+id+"' class="+row_class+">" + feed_icon + 
76                                 "<span id=\"FEEDN-"+id+"\">" + link + "</span>";
77
78                         tmp += " <span class='"+fctr_class+"' id=\"FEEDCTR-"+id+"\">" +
79                    "(<span id=\"FEEDU-"+id+"\">"+unread+"</span>)</span>";
80                                 
81                         tmp += "</li>";
82
83                         rs.next();
84                 }
85
86                 tmp += "</ul>";
87
88                 render_feedlist(tmp);
89         } catch (e) {
90                 exception_error("render_offline_feedlist", e);
91         }
92 }
93
94 function render_feedlist(data) {
95         try {
96
97                 var f = document.getElementById("feeds-frame");
98                 f.innerHTML = data;
99                 cache_invalidate("FEEDLIST");
100                 cache_inject("FEEDLIST", data, getInitParam("num_feeds"));
101                 feedlist_init();
102
103         } catch (e) {
104                 exception_error("render_feedlist", e);
105         }
106 }
107
108 function feedlist_callback2(transport) {
109         try {
110                 debug("feedlist_callback2");
111                 if (!transport_error_check(transport)) return;
112                 render_feedlist(transport.responseText);
113         } catch (e) {
114                 exception_error("feedlist_callback2", e);
115         }
116 }
117
118 function viewNextFeedPage() {
119         try {
120                 //if (!getActiveFeedId()) return;
121
122                 debug("viewNextFeedPage: calling viewfeed(), p: " + _feed_cur_page+1);
123
124                 viewfeed(getActiveFeedId(), undefined, activeFeedIsCat(), undefined,
125                         undefined, _feed_cur_page+1);
126
127         } catch (e) {
128                 exception_error("viewNextFeedPage", e);
129         }
130 }
131
132 function viewfeed_offline(feed_id, subop, is_cat, subop_param, skip_history, offset) {
133         try {
134                 notify('');
135
136                 loading_set_progress(100);
137
138                 clean_feed_selections();
139         
140                 setActiveFeedId(feed_id, is_cat);
141
142                 if (!is_cat) {
143                         var feedr = document.getElementById("FEEDR-" + feed_id);
144                         if (feedr && !feedr.className.match("Selected")) {      
145                                 feedr.className = feedr.className + "Selected";
146                         } 
147                 } else {
148                         var feedr = document.getElementById("FCAT-" + feed_id);
149                         if (feedr && !feedr.className.match("Selected")) {      
150                                 feedr.className = feedr.className + "Selected";
151                         } 
152                 }
153
154                 var f = document.getElementById("headlines-frame");
155                 try {
156                         if (reply.offset == 0) { 
157                                 debug("resetting headlines scrollTop");
158                                 f.scrollTop = 0; 
159                         }
160                 } catch (e) { };
161
162
163                 var container = document.getElementById("headlines-frame");
164
165                 var tmp = "";
166
167                 rs = db.execute("SELECT title FROM feeds WHERE id = ?", [feed_id]);
168
169                 if (rs.isValidRow()) {
170
171                         var feed_title = rs.field(0);
172
173                         if (offset == 0) {
174                                 tmp += "<div id=\"headlinesContainer\">";
175                 
176                                 tmp += "<div class=\"headlinesSubToolbar\">";
177                                 tmp += "<div id=\"subtoolbar_ftitle\">";
178                                 tmp += feed_title;
179                                 tmp += "</div>";
180
181                                 var sel_all_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, '', true)";
182                                 var sel_unread_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, 'Unread', true)";
183                                 var sel_none_link = "javascript:selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false)";
184                                 var sel_inv_link = "javascript:invertHeadlineSelection()";
185
186                                 tmp += __('Select:')+
187                                         " <a href=\""+sel_all_link+"\">"+__('All')+"</a>, "+
188                                         "<a href=\""+sel_unread_link+"\">"+__('Unread')+"</a>, "+
189                                         "<a href=\""+sel_inv_link+"\">"+__('Invert')+"</a>, "+
190                                         "<a href=\""+sel_none_link+"\">"+__('None')+"</a>";
191         
192                                 tmp += "&nbsp;&nbsp;";
193         
194                                 tmp += "</div>";
195         
196                                 tmp += "<div id=\"headlinesInnerContainer\" onscroll=\"headlines_scroll_handler()\">";
197         
198                                 tmp += "<table class=\"headlinesList\" id=\"headlinesList\" cellspacing=\"0\">";
199                         
200                         }
201         
202                         var rs = db.execute("SELECT * FROM articles WHERE feed_id = ?", [feed_id]);
203
204                         var line_num = 0;
205
206                         while (rs.isValidRow()) {
207
208                                 var id = rs.fieldByName("id");
209                                 var feed_id = rs.fieldByName("feed_id");
210
211                                 var marked_pic;
212         
213                                 var row_class = (line_num % 2) ? "even" : "odd";
214
215                                 if (rs.fieldByName("unread") == "1") {
216                                         row_class += "Unread";
217                                 }
218         
219                                 if (rs.fieldByName("marked") == "1") {
220                                         marked_pic = "<img id=\"FMPIC-"+id+"\" "+
221                                                 "src=\"images/mark_set.png\" class=\"markedPic\""+
222                                                 "alt=\"Unstar article\" onclick='javascript:tMark("+id+")'>";
223                                 } else {
224                                         marked_pic = "<img id=\"FMPIC-"+id+"\" "+
225                                                 "src=\"images/mark_unset.png\" class=\"markedPic\""+
226                                                 "alt=\"Star article\" onclick='javascript:tMark("+id+")'>";
227                                 }
228
229                                 var mouseover_attrs = "onmouseover='postMouseIn($id)' "+
230                                         "onmouseout='postMouseOut($id)'";
231         
232                                 tmp += "<tr class='"+row_class+"' id='RROW-"+id+"' "+mouseover_attrs+">";
233                                 
234                                 tmp += "<td class='hlUpdPic'> </td>";
235
236                                 tmp += "<td class='hlSelectRow'>"+
237                                         "<input type=\"checkbox\" onclick=\"tSR(this)\" id=\"RCHK-"+id+"\"></td>";
238                                 
239                                 tmp += "<td class='hlMarkedPic'>"+marked_pic+"</td>";
240         
241                                 tmp += "<td onclick='view("+id+","+feed_id+")' "+
242                                         "class='hlContent' valign='middle'>";
243         
244                                 tmp += "<a id=\"RTITLE-$id\" href=\"" + 
245                                         param_escape(rs.fieldByName("link")) + "\"" +
246                                         "onclick=\"return view("+id+","+feed_id+");\">"+
247                                         rs.fieldByName("title");
248
249                                 var content_preview = truncate_string(strip_tags(rs.fieldByName("content")), 
250                                         100);
251
252                                 tmp += "<span class=\"contentPreview\"> - "+content_preview+"</span>";
253
254                                 tmp += "</a>";
255
256                                 tmp += "</td>";
257         
258                                 tmp += "<td class=\"hlUpdated\" onclick='view("+id+","+feed_id+")'>"+
259                                         "<nobr>"+rs.fieldByName("updated").substring(0,16)+"</nobr></td>";
260
261                                 tmp += "</tr>";
262
263                                 rs.next();
264                                 line_num++;
265                         }
266         
267                         if (offset == 0) {
268                                 tmp += "</table>";
269                                 tmp += "</div></div>";
270                         }
271         
272                         if (offset == 0) {
273                                 container.innerHTML = tmp;
274                         } else {
275                                 var ids = getSelectedArticleIds2();
276                 
277                                 //container.innerHTML = container.innerHTML + tmp;
278         
279                                 for (var i = 0; i < ids.length; i++) {
280                                         markHeadline(ids[i]);
281                                 }
282                         }
283                 }
284
285                 remove_splash();
286
287
288         } catch (e) {
289                 exception_error("viewfeed_offline", e);
290         }
291 }
292
293 function viewfeed(feed, subop, is_cat, subop_param, skip_history, offset) {
294         try {
295
296                 if (offline_mode) return viewfeed_offline(feed, subop, is_cat, subop_param,
297                         skip_history, offset);
298
299 //              if (!offset) page_offset = 0;
300
301                 last_requested_article = 0;
302                 //counters_last_request = 0;
303
304                 if (feed == getActiveFeedId()) {
305                         cache_invalidate("F:" + feed);
306                 }
307
308 /*              if (getInitParam("theme") == "" || getInitParam("theme") == "compact") {
309                         if (getInitParam("hide_feedlist") == 1) {
310                                 Element.hide("feeds-holder");
311                         }               
312                 } */
313
314                 var force_nocache = false;
315
316                 var page_offset = 0;
317
318                 if (offset > 0) {
319                         page_offset = offset;
320                 } else {
321                         page_offset = 0;
322                         _feed_cur_page = 0;
323                         _infscroll_disable = 0;
324                 }
325
326                 if (getActiveFeedId() != feed) {
327                         _feed_cur_page = 0;
328                         active_post_id = 0;
329                         _infscroll_disable = 0;
330                 }
331
332                 if (page_offset != 0 && !subop) {
333                         var date = new Date();
334                         var timestamp = Math.round(date.getTime() / 1000);
335
336                         debug("<b>" + _infscroll_request_sent + " : " + timestamp + "</b>");
337
338                         if (_infscroll_request_sent && _infscroll_request_sent + 30 > timestamp) {
339                                 debug("infscroll request in progress, aborting");
340                                 return;
341                         }
342
343                         _infscroll_request_sent = timestamp;                    
344                 }
345
346                 enableHotkeys();
347
348                 closeInfoBox();
349
350                 Form.enable("main_toolbar_form");
351
352                 var toolbar_form = document.forms["main_toolbar_form"];
353                 var toolbar_query = Form.serialize("main_toolbar_form");
354
355                 if (toolbar_form.query) {
356                         if (toolbar_form.query.value != "") {
357                                 force_nocache = true;
358                         }
359                         toolbar_form.query.value = "";
360                 }
361
362                 var query = "backend.php?op=viewfeed&feed=" + feed + "&" +
363                         toolbar_query + "&subop=" + param_escape(subop);
364
365                 if (document.getElementById("search_form")) {
366                         var search_query = Form.serialize("search_form");
367                         query = query + "&" + search_query;
368                         closeInfoBox(true);
369                         force_nocache = true;
370                 }
371
372 //              debug("IS_CAT_STORED: " + activeFeedIsCat() + ", IS_CAT: " + is_cat);
373
374                 if (subop == "MarkAllRead") {
375
376                         var show_next_feed = getInitParam("on_catchup_show_next_feed") == "1";
377
378                         if (show_next_feed) {
379
380                                 if (!activeFeedIsCat()) {
381         
382                                         var feedlist = document.getElementById('feedList');
383                                 
384                                         var next_unread_feed = getRelativeFeedId(feedlist,
385                                                         feed, "next", true);
386         
387                                         if (!next_unread_feed) {
388                                                 next_unread_feed = getRelativeFeedId(feedlist,
389                                                         -3, "next", true);
390                                         }
391                 
392                                         if (next_unread_feed) {
393                                                 query = query + "&nuf=" + param_escape(next_unread_feed);
394                                                 //setActiveFeedId(next_unread_feed);
395                                                 feed = next_unread_feed;
396                                         }
397                                 } else {
398         
399                                         var next_unread_feed = getNextUnreadCat(feed);
400
401                                         /* we don't need to specify that our next feed is actually
402                                         a category, because we're in the is_cat mode by definition
403                                         already */
404
405                                         if (next_unread_feed && show_next_feed) {
406                                                 query = query + "&nuf=" + param_escape(next_unread_feed);
407                                                 feed = next_unread_feed;
408                                         }
409
410                                 }
411                         }
412                 }
413
414                 if (is_cat) {
415                         query = query + "&cat=1";
416                 }
417
418                 if (page_offset != 0) {
419                         query = query + "&skip=" + page_offset;
420
421                         // to prevent duplicate feed titles when showing grouped vfeeds
422                         if (vgroup_last_feed) {
423                                 query = query + "&vgrlf=" + param_escape(vgroup_last_feed);
424                         }
425                 }
426
427                 var date = new Date();
428                 var timestamp = Math.round(date.getTime() / 1000);
429                 query = query + "&ts=" + timestamp
430                 
431                 disableContainerChildren("headlinesToolbar", false);
432                 Form.enable("main_toolbar_form");
433
434                 // for piggybacked counters
435
436                 if (tagsAreDisplayed()) {
437                         query = query + "&omode=lt";
438                 } else {
439                         query = query + "&omode=flc";
440                 }
441
442                 if (!async_counters_work) {
443                         query = query + "&csync=true";
444                 }
445
446                 debug(query);
447
448                 var container = document.getElementById("headlinesInnerContainer");
449
450 /*              if (container && page_offset == 0 && !isCdmMode()) {
451                         new Effect.Fade(container, {duration: 1, to: 0.01,
452                                 queue: { position:'end', scope: 'FEEDL-' + feed, limit: 1 } } );
453                 } */
454
455                 var unread_ctr = -1;
456                 
457                 if (!is_cat) unread_ctr = get_feed_unread(feed);
458
459                 var cache_check = false;
460
461                 if (unread_ctr != -1 && !page_offset && !force_nocache && !subop) {
462
463                         var cache_prefix = "";
464                                 
465                         if (is_cat) {
466                                 cache_prefix = "C:";
467                         } else {
468                                 cache_prefix = "F:";
469                         }
470
471                         cache_check = cache_check_param(cache_prefix + feed, unread_ctr);
472                         debug("headline cache check: " + cache_check);
473                 }
474
475                 if (cache_check) {
476                         var f = document.getElementById("headlines-frame");
477
478                         clean_feed_selections();
479
480                         setActiveFeedId(feed, is_cat);
481                 
482                         if (!is_cat) {
483                                 var feedr = document.getElementById("FEEDR-" + feed);
484                                 if (feedr && !feedr.className.match("Selected")) {      
485                                         feedr.className = feedr.className + "Selected";
486                                 } 
487                         } else {
488                                 var feedr = document.getElementById("FCAT-" + feed_id);
489                                 if (feedr && !feedr.className.match("Selected")) {      
490                                         feedr.className = feedr.className + "Selected";
491                                 } 
492                         }
493
494                         f.innerHTML = cache_find_param(cache_prefix + feed, unread_ctr);
495
496                         request_counters();
497                         remove_splash();
498
499                 } else {
500
501                         if (!page_offset) {
502                                 notify_progress("Loading, please wait...", true);
503                         }
504
505                         new Ajax.Request(query, {
506                                 onComplete: function(transport) { 
507                                         headlines_callback2(transport, page_offset); 
508                                 } });
509                 }
510
511         } catch (e) {
512                 exception_error("viewfeed", e);
513         }               
514 }
515
516 function toggleCollapseCat_af(effect) {
517         //var caption = elem.id.replace("FCATLIST-", "");
518
519         try {
520
521                 var elem = effect.element;
522                 var cat = elem.id.replace("FCATLIST-", "");
523                 var cap = document.getElementById("FCAP-" + cat);
524
525                 if (Element.visible(elem)) {
526                         cap.innerHTML = cap.innerHTML.replace("…", "");
527                 } else {
528                         if (cap.innerHTML.lastIndexOf("…") != cap.innerHTML.length-3) {
529                                 cap.innerHTML = cap.innerHTML + "…";
530                         }
531                 }
532
533         } catch (e) {
534                 exception_error("toggleCollapseCat_af", e);
535         }
536 }
537
538 function toggleCollapseCat(cat) {
539         try {
540         
541                 var cat_elem = document.getElementById("FCAT-" + cat);
542                 var cat_list = document.getElementById("FCATLIST-" + cat).parentNode;
543                 var caption = document.getElementById("FCAP-" + cat);
544                 
545 /*              if (cat_list.className.match("invisible")) {
546                         cat_list.className = "";
547                         caption.innerHTML = caption.innerHTML.replace("...", "");
548                         if (cat == 0) {
549                                 setCookie("ttrss_vf_uclps", "0");
550                         }
551                 } else {
552                         cat_list.className = "invisible";
553                         caption.innerHTML = caption.innerHTML + "...";
554                         if (cat == 0) {
555                                 setCookie("ttrss_vf_uclps", "1");
556                         } 
557
558                 } */
559
560                 if (cat == 0) {
561                         if (Element.visible("FCATLIST-" + cat)) {
562                                 setCookie("ttrss_vf_uclps", "1");
563                         } else {
564                                 setCookie("ttrss_vf_uclps", "0");
565                         }
566                 } 
567
568                 if (cat == -2) {
569                         if (Element.visible("FCATLIST-" + cat)) {
570                                 setCookie("ttrss_vf_lclps", "1");
571                         } else {
572                                 setCookie("ttrss_vf_lclps", "0");
573                         }
574                 } 
575
576                 if (cat == -1) {
577                         if (Element.visible("FCATLIST-" + cat)) {
578                                 setCookie("ttrss_vf_vclps", "1");
579                         } else {
580                                 setCookie("ttrss_vf_vclps", "0");
581                         }
582                 } 
583
584                 Effect.toggle('FCATLIST-' + cat, 'blind', { duration: 0.5,
585                         afterFinish: toggleCollapseCat_af });
586
587                 new Ajax.Request("backend.php?op=feeds&subop=collapse&cid=" + 
588                         param_escape(cat));
589
590         } catch (e) {
591                 exception_error("toggleCollapseCat", e);
592         }
593 }
594
595 function feedlist_dragsorted(ctr) {
596         try {
597                 var elem = document.getElementById("feedList");
598
599                 var cats = elem.getElementsByTagName("LI");
600                 var ordered_cats = new Array();
601
602                 for (var i = 0; i < cats.length; i++) {
603                         if (cats[i].id && cats[i].id.match("FCAT-")) {
604                                 ordered_cats.push(cats[i].id.replace("FCAT-", ""));
605                         }
606                 }
607
608                 if (ordered_cats.length > 0) {
609
610                         var query = "backend.php?op=feeds&subop=catsort&corder=" + 
611                                 param_escape(ordered_cats.toString());
612
613                         debug(query);
614
615                         new Ajax.Request(query);
616                 }
617
618         } catch (e) {
619                 exception_error("feedlist_dragsorted", e);
620         }
621 }
622
623 function feedlist_init() {
624         try {
625 //              if (arguments.callee.done) return;
626 //              arguments.callee.done = true;           
627                 
628                 loading_set_progress(90);
629
630                 debug("in feedlist init");
631                 
632                 hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
633                 document.onkeydown = hotkey_handler;
634                 document.onmousemove = mouse_move_handler;
635                 document.onmousedown = mouse_down_handler;
636                 document.onmouseup = mouse_up_handler;
637
638                 setTimeout("timeout()", 1);
639
640                 if (typeof correctPNG != 'undefined') {
641                         correctPNG();
642                 }
643
644                 if (getActiveFeedId()) {
645                         //debug("some feed is open on feedlist refresh, reloading");
646                         //setTimeout("viewCurrentFeed()", 100);
647                 } else {
648                         if (getInitParam("cdm_auto_catchup") != 1 && get_feed_unread(-3) > 0) {
649                                 notify_silent_next();
650                                 setTimeout("viewfeed(-3)", 100);
651                         } else {
652                                 remove_splash();
653                         }
654                 }
655
656                 if (getInitParam("theme") == "") {
657                         setTimeout("hide_footer()", 5000);
658                 }
659
660                 init_collapsable_feedlist(getInitParam("theme"));
661
662                 toggle_sortable_feedlist(isFeedlistSortable());
663
664         } catch (e) {
665                 exception_error("feedlist/init", e);
666         }
667 }
668
669 function hide_footer_af(effect) {
670         try {
671                 var c = document.getElementById("content-frame");
672
673                 if (c) {
674                         c.style.bottom = "0px";
675
676                         var ioa = document.getElementById("inline_orig_article");
677
678                         if (ioa) {
679                                 ioa.height = c.offsetHeight;
680                         }
681
682                 } else {
683                         var h = document.getElementById("headlines-frame");
684
685                         if (h) {
686                                 h.style.bottom = "0px";
687                         }
688                 }
689
690         } catch (e) {
691                 exception_error("hide_footer_af", e);
692         }
693 }
694
695 function hide_footer() {
696         try {
697                 if (Element.visible("footer")) {
698                         new Effect.Fade("footer", { afterFinish: hide_footer_af });
699                 }
700         } catch (e) {
701                 exception_error("hide_footer", e);
702         }
703 }
704
705 /*
706 function init_hidden_feedlist(theme) {
707         try {
708                 debug("init_hidden_feedlist");
709
710                 if (theme != "" && theme != "compact") return;
711
712                 var fl = document.getElementById("feeds-holder");
713                 var fh = document.getElementById("headlines-frame");
714                 var fc = document.getElementById("content-frame");
715                 var ft = document.getElementById("toolbar");
716                 var ff = document.getElementById("footer");
717                 var fhdr = document.getElementById("header");
718
719                 var fbtn = document.getElementById("toggle_feeds_btn");
720
721                 if (fbtn) Element.show(fbtn);
722
723                 fl.style.top = fh.offsetTop + "px";
724                 fl.style.backgroundColor = "white"; //FIXME
725
726                 Element.hide(fl);
727                 
728                 fh.style.left = "0px";
729                 ft.style.left = "0px";
730                 if (fc) fc.style.left = "0px";
731                 if (ff) ff.style.left = "0px";
732
733                 if (theme == "compact") {
734                         fhdr.style.left = "10px";
735                         fl.style.top = (fh.offsetTop + 1) + "px";
736                 }
737
738         } catch (e) {
739                 exception_error("init_hidden_feedlist", e);
740         }
741 } */
742
743 function init_collapsable_feedlist(theme) {
744         try {
745                 debug("init_collapsable_feedlist");
746
747                 if (theme != "" && theme != "compact" && theme != "graycube" &&
748                                 theme != "compat") return;
749
750                 var fbtn = document.getElementById("collapse_feeds_btn");
751
752                 if (fbtn) Element.show(fbtn);
753
754                 if (getCookie("ttrss_vf_fclps") == 1) {
755                         collapse_feedlist();
756                 }
757
758         } catch (e) {
759                 exception_error("init_hidden_feedlist", e);
760         }
761
762 }
763
764 function mouse_move_handler(e) {
765         try {
766                 var client_y;
767                 var client_x;
768
769                 if (window.event) {
770                         client_y = window.event.clientY;
771                         client_x = window.event.clientX;
772                 } else if (e) {
773                         client_x = e.screenX;
774                         client_y = e.screenY;
775                 }
776
777                 if (mouse_is_down) {
778
779                         if (mouse_y == 0) mouse_y = client_y;
780                         if (mouse_x == 0) mouse_x = client_x;
781
782                         resize_headlines(mouse_x - client_x, mouse_y - client_y);
783
784                         mouse_y = client_y;
785                         mouse_x = client_x;
786
787                         return false;
788                 }
789
790         } catch (e) {
791                 exception_error("mouse_move_handler", e);
792         }
793 }
794
795 function enable_selection(b) {
796         selection_disabled = !b;
797 }
798
799 function enable_resize(b) {
800         resize_enabled = b;
801 }
802
803 function mouse_down_handler(e) {
804         try {
805
806                 /* do not prevent right click */
807                 if (e.button && e.button == 2) return;
808
809                 if (resize_enabled) { 
810                         mouse_is_down = true;
811                         mouse_x = 0;
812                         mouse_y = 0;
813                         document.onselectstart = function() { return false; };
814                         return false;
815                 }
816
817                 if (selection_disabled) {
818                         document.onselectstart = function() { return false; };
819                         return false;
820                 }
821
822         } catch (e) {
823                 exception_error("mouse_move_handler", e);
824         }
825 }
826
827 function mouse_up_handler(e) {
828         try {
829                 mouse_is_down = false;
830
831                 if (!selection_disabled) {
832                         document.onselectstart = null;
833                         var e = document.getElementById("headlineActionsBody");
834                         if (e) Element.hide(e);
835                 }
836
837         } catch (e) {
838                 exception_error("mouse_move_handler", e);
839         }
840 }
841
842 function request_counters_real() {
843
844         try {
845
846                 if (offline_mode) return;
847
848                 debug("requesting counters...");
849
850                 var query = "backend.php?op=rpc&subop=getAllCounters";
851
852                 if (tagsAreDisplayed()) {
853                         query = query + "&omode=tl";
854                 } else {
855                         query = query + "&omode=flc";
856                 }
857
858                 new Ajax.Request(query, {
859                         onComplete: function(transport) { 
860                                 try {
861                                         all_counters_callback2(transport, true);
862                                 } catch (e) {
863                                         exception_error("viewfeed/getcounters", e);
864                                 }
865                         } });
866
867         } catch (e) {
868                 exception_error("request_counters_real", e);
869         }
870 }
871
872
873 function request_counters() {
874
875         try {
876
877                 if (getInitParam("bw_limit") == "1") return;
878
879                 var date = new Date();
880                 var timestamp = Math.round(date.getTime() / 1000);
881
882 //              if (getInitParam("sync_counters") == "1" || 
883 //                              timestamp - counters_last_request > 10) {
884
885                 if (timestamp - counters_last_request > 15) {
886                         debug("scheduling request of counters...");
887                         window.setTimeout("request_counters_real()", 1000);
888                         counters_last_request = timestamp;
889                 } else {
890                         debug("request_counters: rate limit reached: " + (timestamp - counters_last_request));
891                 }
892
893         } catch (e) {
894                 exception_error("request_counters", e);
895         }
896 }