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[tt-rss.git] / tt-rss.js
1
2 var total_unread = 0;
3 var first_run = true;
4 var display_tags = false;
5 var global_unread = -1;
6 var active_title_text = "";
7 var current_subtitle = "";
8 var daemon_enabled = false;
9 var daemon_refresh_only = false;
10 //var _qfd_deleted_feed = 0;
11 var firsttime_update = true;
12 var _active_feed_id = 0;
13 var _active_feed_is_cat = false;
14 var number_of_feeds = 0;
15 var sanity_check_done = false;
16 var _hfd_scrolltop = 0;
17 var hotkey_prefix = false;
18 var hotkey_prefix_pressed = false;
19 var init_params = new Object();
20 var ver_offset = 0;
21 var hor_offset = 0;
22 var feeds_sort_by_unread = false;
23 var feedlist_sortable_enabled = false;
24
25 function activeFeedIsCat() {
26         return _active_feed_is_cat;
27 }
28
29 function getActiveFeedId() {
30         try {
31                 debug("gAFID: " + _active_feed_id);
32                 return _active_feed_id;
33         } catch (e) {
34                 exception_error("getActiveFeedId", e);
35         }
36 }
37
38 function setActiveFeedId(id, is_cat) {
39         try {
40                 debug("sAFID(" + id + ", " + is_cat + ")");
41                 _active_feed_id = id;
42
43                 if (is_cat != undefined) {
44                         _active_feed_is_cat = is_cat;
45                 }
46
47         } catch (e) {
48                 exception_error("setActiveFeedId", e);
49         }
50 }
51
52
53 function isFeedlistSortable() {
54         return feedlist_sortable_enabled;
55 }
56
57 function tagsAreDisplayed() {
58         return display_tags;
59 }
60
61 function toggleTags(show_all) {
62
63         try {
64
65         debug("toggleTags: " + show_all + "; " + display_tags);
66
67         var p = $("dispSwitchPrompt");
68
69         if (!show_all && !display_tags) {
70                 displayDlg("printTagCloud");
71         } else if (show_all) {
72                 closeInfoBox();
73                 display_tags = true;
74                 p.innerHTML = __("display feeds");
75                 notify_progress("Loading, please wait...", true);
76                 updateFeedList();
77         } else if (display_tags) {
78                 display_tags = false;
79                 p.innerHTML = __("tag cloud");
80                 notify_progress("Loading, please wait...", true);
81                 updateFeedList();
82         }
83
84         } catch (e) {
85                 exception_error("toggleTags", e);
86         }
87 }
88
89 function dlg_frefresh_callback(transport, deleted_feed) {
90         if (getActiveFeedId() == deleted_feed) {
91                 var h = $("headlines-frame");
92                 if (h) {
93                         h.innerHTML = "<div class='whiteBox'>" + __('No feed selected.') + "</div>";
94                 }
95         }
96
97         setTimeout('updateFeedList(false, false)', 50);
98         closeInfoBox();
99 }
100
101 function backend_sanity_check_callback(transport) {
102
103         try {
104
105                 if (sanity_check_done) {
106                         fatalError(11, "Sanity check request received twice. This can indicate "+
107                       "presence of Firebug or some other disrupting extension. "+
108                                 "Please disable it and try again.");
109                         return;
110                 }
111
112                 if (!transport.responseXML) {
113                         if (!store) {
114                                 fatalError(3, "Sanity check: Received reply is not XML", 
115                                         transport.responseText);
116                                 return;
117                         } else {
118                                 init_offline();
119                                 return;
120                         }
121                 }
122
123                 if (getURLParam("offline")) {
124                         return init_offline();
125                 }
126
127                 var reply = transport.responseXML.firstChild.firstChild;
128
129                 if (!reply) {
130                         fatalError(3, "Sanity check: invalid RPC reply", transport.responseText);
131                         return;
132                 }
133
134                 var error_code = reply.getAttribute("error-code");
135         
136                 if (error_code && error_code != 0) {
137                         return fatalError(error_code, reply.getAttribute("error-msg"));
138                 }
139
140                 debug("sanity check ok");
141
142                 var params = reply.nextSibling;
143
144                 if (params) {
145                         debug('reading init-params...');
146                         var param = params.firstChild;
147
148                         while (param) {
149                                 var k = param.getAttribute("key");
150                                 var v = param.getAttribute("value");
151                                 debug(k + " => " + v);
152                                 init_params[k] = v;                                     
153
154                                 if (db) {
155                                         db.execute("DELETE FROM init_params WHERE key = ?", [k]);
156                                         db.execute("INSERT INTO init_params (key,value) VALUES (?, ?)",
157                                                 [k, v]);
158                                 }
159
160                                 param = param.nextSibling;
161                         }
162                 }
163
164                 sanity_check_done = true;
165
166                 init_second_stage();
167
168         } catch (e) {
169                 exception_error("backend_sanity_check_callback", e, transport); 
170         } 
171 }
172
173 function scheduleFeedUpdate(force) {
174
175         debug("in scheduleFeedUpdate");
176
177 /*      if (!daemon_enabled && !daemon_refresh_only) {
178                 notify_progress("Updating feeds...", true);
179         } */
180
181         var query_str = "backend.php?op=rpc&subop=";
182
183         if (force) {
184                 query_str = query_str + "forceUpdateAllFeeds";
185         } else {
186                 query_str = query_str + "updateAllFeeds";
187         }
188
189         var omode;
190
191         if (firsttime_update && !navigator.userAgent.match("Opera")) {
192                 firsttime_update = false;
193                 omode = "T";
194         } else {
195                 if (display_tags) {
196                         omode = "tl";
197                 } else {
198                         omode = "flc";
199                 }
200         }
201         
202         query_str = query_str + "&omode=" + omode;
203         query_str = query_str + "&uctr=" + global_unread;
204
205         var date = new Date();
206         var timestamp = Math.round(date.getTime() / 1000);
207         query_str = query_str + "&ts=" + timestamp
208
209         debug("REFETCH query: " + query_str);
210
211         new Ajax.Request("backend.php", {
212                 parameters: query_str,
213                 onComplete: function(transport) { 
214                                 parse_counters_reply(transport, true);
215                         } });
216 }
217
218 function updateFeedList(silent, fetch) {
219
220 //      if (silent != true) {
221 //              notify("Loading feed list...");
222 //      }
223
224         debug("<b>updateFeedList</b>");
225
226         if (offline_mode) return render_offline_feedlist();
227
228         var query_str = "backend.php?op=feeds";
229
230         if (display_tags) {
231                 query_str = query_str + "&tags=1";
232         }
233
234         if (getActiveFeedId() && !activeFeedIsCat()) {
235                 query_str = query_str + "&actid=" + getActiveFeedId();
236         }
237
238         var date = new Date();
239         var timestamp = Math.round(date.getTime() / 1000);
240         query_str = query_str + "&ts=" + timestamp
241         
242         if (fetch) query_str = query_str + "&fetch=yes";
243
244 //      var feeds_frame = $("feeds-frame");
245 //      feeds_frame.src = query_str;
246
247         debug("updateFeedList Q=" + query_str);
248
249         new Ajax.Request("backend.php", {
250                 parameters: query_str,
251                 onComplete: function(transport) { 
252                         feedlist_callback2(transport); 
253                 } });
254
255 }
256
257 function catchupAllFeeds() {
258
259         var str = __("Mark all articles as read?");
260
261         if (getInitParam("confirm_feed_catchup") != 1 || confirm(str)) {
262
263                 var query_str = "backend.php?op=feeds&subop=catchupAll";
264
265                 notify_progress("Marking all feeds as read...");
266
267                 debug("catchupAllFeeds Q=" + query_str);
268
269                 new Ajax.Request("backend.php", {
270                         parameters: query_str,
271                         onComplete: function(transport) { 
272                                 feedlist_callback2(transport); 
273                         } });
274
275                 global_unread = 0;
276                 updateTitle("");
277         }
278 }
279
280 function viewCurrentFeed(subop) {
281
282 //      if (getActiveFeedId()) {
283         if (getActiveFeedId() != undefined) {
284                 viewfeed(getActiveFeedId(), subop, activeFeedIsCat());
285         } else {
286                 disableContainerChildren("headlinesToolbar", false, document);
287 //              viewfeed(-1, subop); // FIXME
288         }
289         return false; // block unneeded form submits
290 }
291
292 function viewfeed(feed, subop) {
293         var f = window.frames["feeds-frame"];
294         f.viewfeed(feed, subop);
295 }
296
297 function timeout() {
298         if (getInitParam("bw_limit") == "1") return;
299
300         scheduleFeedUpdate(false);
301
302         var refresh_time = getInitParam("feeds_frame_refresh");
303
304         if (!refresh_time) refresh_time = 600; 
305
306         setTimeout("timeout()", refresh_time*1000);
307 }
308
309 function resetSearch() {
310         var searchbox = $("searchbox")
311
312         if (searchbox.value != "" && getActiveFeedId()) {       
313                 searchbox.value = "";
314                 viewfeed(getActiveFeedId(), "");
315         }
316 }
317
318 function searchCancel() {
319         closeInfoBox(true);
320 }
321
322 function search() {
323         closeInfoBox(); 
324         viewCurrentFeed(0, "");
325 }
326
327 // if argument is undefined, current subtitle is not updated
328 // use blank string to clear subtitle
329 function updateTitle(s) {
330         var tmp = "Tiny Tiny RSS";
331
332         if (s != undefined) {
333                 current_subtitle = s;
334         }
335
336         if (global_unread > 0) {
337                 tmp = tmp + " (" + global_unread + ")";
338         }
339
340         if (current_subtitle) {
341                 tmp = tmp + " - " + current_subtitle;
342         }
343
344         if (active_title_text.length > 0) {
345                 tmp = tmp + " > " + active_title_text;
346         }
347
348         document.title = tmp;
349 }
350
351 function genericSanityCheck() {
352
353 //      if (!Ajax.getTransport()) fatalError(1);
354
355         setCookie("ttrss_test", "TEST");
356         
357         if (getCookie("ttrss_test") != "TEST") {
358                 fatalError(2);
359         }
360
361         return true;
362 }
363
364 function init() {
365
366         try {
367
368                 init_gears();
369
370                 disableContainerChildren("headlinesToolbar", true);
371
372                 Form.disable("main_toolbar_form");
373
374                 if (!genericSanityCheck()) 
375                         return;
376
377                 if (getURLParam('debug')) {
378                         Element.show("debug_output");
379                         debug('debug mode activated');
380                 }
381
382                 var params = "&ua=" + param_escape(navigator.userAgent);
383
384                 loading_set_progress(30);
385
386                 new Ajax.Request("backend.php", {
387                         parameters: "backend.php?op=rpc&subop=sanityCheck" + params,
388                         onComplete: function(transport) {
389                                         backend_sanity_check_callback(transport);
390                                 } });
391
392         } catch (e) {
393                 exception_error("init", e);
394         }
395 }
396
397 function resize_headlines(delta_x, delta_y) {
398
399         try {
400
401                 debug("resize_headlines: " + delta_x + ":" + delta_y);
402         
403                 var h_frame = $("headlines-frame");
404                 var c_frame = $("content-frame");
405                 var f_frame = $("footer");
406                 var feeds_frame = $("feeds-holder");
407                 var resize_grab = $("resize-grabber");
408                 var resize_handle = $("resize-handle");
409
410                 if (!c_frame || !h_frame) return;
411         
412                 if (feeds_frame && getInitParam("theme") == "compat") {
413                                 feeds_frame.style.bottom = f_frame.offsetHeight + "px";         
414                 }
415         
416                 if (getInitParam("theme") == "3pane") {
417         
418                         if (delta_x != undefined) {
419                                 if (c_frame.offsetLeft - delta_x > feeds_frame.offsetWidth + feeds_frame.offsetLeft + 100 && c_frame.offsetWidth + delta_x > 100) {
420                                         hor_offset = hor_offset + delta_x;
421                                 }
422                         }
423         
424                         debug("resize_headlines: HOR-mode: " + hor_offset);
425         
426                         c_frame.style.width = (400 + hor_offset) + "px";
427                         h_frame.style.right = c_frame.offsetWidth - 1 + "px";
428         
429                         resize_grab.style.top = (h_frame.offsetTop + h_frame.offsetHeight - 60) + "px";
430                         resize_grab.style.left = (h_frame.offsetLeft + h_frame.offsetWidth - 
431                                 4) + "px";
432                         resize_grab.style.display = "block";
433
434                         resize_handle.src = "themes/3pane/images/resize_handle_vert.png";
435                         resize_handle.style.paddingTop = (resize_grab.offsetHeight / 2 - 7) + "px";
436         
437                 } else {
438         
439                         if (delta_y != undefined) {
440                                 if (c_frame.offsetHeight + delta_y > 100 && h_frame.offsetHeight - delta_y > 100) {
441                                         ver_offset = ver_offset + delta_y;
442                                 }
443                         }
444         
445                         debug("resize_headlines: VER-mode: " + ver_offset);
446         
447                         h_frame.style.height = (300 - ver_offset) + "px";
448         
449                         c_frame.style.top = (h_frame.offsetTop + h_frame.offsetHeight + 0) + "px";
450                         h_frame.style.height = h_frame.offsetHeight + "px";
451         
452                         var theme_c = 0;
453         
454                         if (getInitParam("theme") == "graycube") {
455                                 theme_c = 1;
456                         }
457
458                         if (getInitParam("theme") == "graycube" || getInitParam("theme") == "compat") {
459                                 resize_handle.src = "themes/graycube/images/resize_handle_horiz.png";
460                         }
461         
462 /*                      resize_grab.style.top = (h_frame.offsetTop + h_frame.offsetHeight - 
463                                 4 - theme_c) + "px";
464                         resize_grab.style.display = "block"; */
465         
466                 }
467         
468                 if (getInitParam("cookie_lifetime") != 0) {
469                         setCookie("ttrss_offset_ver", ver_offset, 
470                                 getInitParam("cookie_lifetime"));
471                         setCookie("ttrss_offset_hor", hor_offset, 
472                                 getInitParam("cookie_lifetime"));
473                 } else {
474                         setCookie("ttrss_offset_ver", ver_offset);
475                         setCookie("ttrss_offset_hor", hor_offset);
476                 }
477
478         } catch (e) {
479                 exception_error("resize_headlines", e);
480         }
481
482 }
483
484 function init_second_stage() {
485
486         try {
487
488                 delCookie("ttrss_test");
489
490 //              document.onresize = resize_headlines;
491                 window.onresize=resize_headlines;
492
493                 var toolbar = document.forms["main_toolbar_form"];
494
495                 dropboxSelect(toolbar.view_mode, getInitParam("default_view_mode"));
496                 dropboxSelect(toolbar.order_by, getInitParam("default_view_order_by"));
497
498                 daemon_enabled = getInitParam("daemon_enabled") == 1;
499                 daemon_refresh_only = getInitParam("daemon_refresh_only") == 1;
500                 feeds_sort_by_unread = getInitParam("feeds_sort_by_unread") == 1;
501
502 /*              var fl = cache_find_param("FEEDLIST", getInitParam("num_feeds"));
503
504                 if (fl) {
505                         render_feedlist(fl);
506                         if ($("feedList")) {
507                                 request_counters();
508                         } else {
509                                 setTimeout('updateFeedList(false, false)', 50);
510                         }
511                 } else {
512                         setTimeout('updateFeedList(false, false)', 50);
513                 } */
514
515                 setTimeout('updateFeedList(false, false)', 50);
516
517                 debug("second stage ok");
518
519                 loading_set_progress(60);
520
521                 ver_offset = parseInt(getCookie("ttrss_offset_ver"));
522                 hor_offset = parseInt(getCookie("ttrss_offset_hor"));
523
524                 debug("got offsets from cookies: ver " + ver_offset + " hor " + hor_offset);
525
526                 /* fuck IE */
527
528                 if (isNaN(hor_offset)) hor_offset = 0;
529                 if (isNaN(ver_offset)) ver_offset = 0;
530
531                 debug("offsets from cookies [x:y]: " + hor_offset + ":" + ver_offset);
532
533                 resize_headlines();
534
535                 enable_offline_reading();
536
537         } catch (e) {
538                 exception_error("init_second_stage", e);
539         }
540 }
541
542 function quickMenuChange() {
543         var chooser = $("quickMenuChooser");
544         var opid = chooser[chooser.selectedIndex].value;
545
546         chooser.selectedIndex = 0;
547         quickMenuGo(opid);
548 }
549
550 function quickMenuGo(opid) {
551         try {
552
553                 if (opid == "qmcPrefs") {
554                         gotoPreferences();
555                 }
556         
557                 if (opid == "qmcSearch") {
558                         displayDlg("search", getActiveFeedId() + ":" + activeFeedIsCat());
559                         return;
560                 }
561         
562                 if (opid == "qmcAddFeed") {
563                         displayDlg('quickAddFeed', '',
564                                            function () {$('feed_url').focus();});
565                         return;
566                 }
567
568                 if (opid == "qmcEditFeed") {
569                         editFeedDlg(getActiveFeedId());
570                 }
571         
572                 if (opid == "qmcRemoveFeed") {
573                         var actid = getActiveFeedId();
574
575                         if (activeFeedIsCat()) {
576                                 alert(__("You can't unsubscribe from the category."));
577                                 return;
578                         }       
579
580                         if (!actid) {
581                                 alert(__("Please select some feed first."));
582                                 return;
583                         }
584
585                         var fn = getFeedName(actid);
586
587                         var pr = __("Unsubscribe from %s?").replace("%s", fn);
588
589                         if (confirm(pr)) {
590                                 unsubscribeFeed(actid);
591                         }
592                 
593                         return;
594                 }
595
596                 if (opid == "qmcClearFeed") {
597                         var actid = getActiveFeedId();
598
599                         if (!actid) {
600                                 alert(__("Please select some feed first."));
601                                 return;
602                         }
603
604                         if (activeFeedIsCat() || actid < 0) {
605                                 alert(__("You can't clear this type of feed."));
606                                 return;
607                         }       
608
609                         var fn = getFeedName(actid);
610
611                         var pr = __("Erase all non-starred articles in %s?").replace("%s", fn);
612
613                         if (confirm(pr)) {
614                                 clearFeedArticles(actid);
615                         }
616                 
617                         return;
618                 }
619         
620
621                 if (opid == "qmcUpdateFeeds") {
622                         scheduleFeedUpdate(true);
623                         return;
624                 }
625         
626                 if (opid == "qmcCatchupAll") {
627                         catchupAllFeeds();
628                         return;
629                 }
630         
631                 if (opid == "qmcShowOnlyUnread") {
632                         toggleDispRead();
633                         return;
634                 }
635         
636                 if (opid == "qmcAddFilter") {
637                         displayDlg("quickAddFilter", getActiveFeedId());
638                 }
639
640                 if (opid == "qmcAddLabel") {
641                         addLabel();
642                 }
643
644                 if (opid == "qmcRescoreFeed") {
645                         rescoreCurrentFeed();
646                 }
647
648                 if (opid == "qmcHKhelp") {
649                         //Element.show("hotkey_help_overlay");
650                         Effect.Appear("hotkey_help_overlay", {duration : 0.3});
651                 }
652
653                 if (opid == "qmcResetUI") {
654                         hor_offset = 0;
655                         ver_offset = 0;
656                         resize_headlines();
657                 }
658
659                 if (opid == "qmcResetCats") {
660
661                         if (confirm(__("Reset category order?"))) {
662
663                                 var query = "?op=feeds&subop=catsortreset";
664
665                                 notify_progress("Loading, please wait...", true);
666
667                                 new Ajax.Request("backend.php", {
668                                         parameters: query,
669                                         onComplete: function(transport) { 
670                                                 window.setTimeout('updateFeedList(false, false)', 50);
671                                         } });
672                         }
673                 }
674
675         } catch (e) {
676                 exception_error("quickMenuGo", e);
677         }
678 }
679
680 function unsubscribeFeed(feed_id, title) {
681
682
683         var msg = __("Unsubscribe from %s?").replace("%s", title);
684
685         if (title == undefined || confirm(msg)) {
686                 notify_progress("Removing feed...");
687
688                 var query = "?op=pref-feeds&quiet=1&subop=remove&ids=" + feed_id;
689
690                 new Ajax.Request("backend.php", {
691                         parameters: query,
692                         onComplete: function(transport) {
693                                         dlg_frefresh_callback(transport, feed_id);
694                                 } });
695         }
696
697         return false;
698 }
699
700
701 function updateFeedTitle(t) {
702         active_title_text = t;
703         updateTitle();
704 }
705
706 function toggleDispRead() {
707         try {
708
709                 var hide = !(getInitParam("hide_read_feeds") == "1");
710
711                 hideOrShowFeeds(hide);
712
713                 var query = "?op=rpc&subop=setpref&key=HIDE_READ_FEEDS&value=" + 
714                         param_escape(hide);
715
716                 new Ajax.Request("backend.php", {
717                         parameters: query,
718                         onComplete: function(transport) { 
719                                 setInitParam("hide_read_feeds", hide);
720                         } });
721                                 
722         } catch (e) {
723                 exception_error("toggleDispRead", e);
724         }
725 }
726
727 function parse_runtime_info(elem) {
728         if (!elem) {
729                 debug("parse_runtime_info: elem is null, aborting");
730                 return;
731         }
732
733         var param = elem.firstChild;
734
735         debug("parse_runtime_info: " + param);
736
737         while (param) {
738                 var k = param.getAttribute("key");
739                 var v = param.getAttribute("value");
740
741                 debug("RI: " + k + " => " + v);
742
743                 if (k == "num_feeds") {
744                         init_params[k] = v;                                     
745                 }
746
747                 if (k == "new_version_available") {
748                         var icon = $("newVersionIcon");
749                         if (icon) {
750                                 if (v == "1") {
751                                         icon.style.display = "inline";
752                                 } else {
753                                         icon.style.display = "none";
754                                 }
755                         }
756                 }
757
758                 var error_flag;
759
760                 if (k == "daemon_is_running" && v != 1) {
761                         notify_error("<span onclick=\"javascript:explainError(1)\">Update daemon is not running.</span>", true);
762                         error_flag = true;
763                 }
764
765                 if (k == "daemon_stamp_ok" && v != 1) {
766                         notify_error("<span onclick=\"javascript:explainError(3)\">Update daemon is not updating feeds.</span>", true);
767                         error_flag = true;
768                 }
769
770                 if (!error_flag) {
771                         notify('');
772                 }
773
774 /*              var w = $("noDaemonWarning");
775                 
776                 if (w) {
777                         if (k == "daemon_is_running" && v != 1) {
778                                 w.style.display = "block";
779                         } else {
780                                 w.style.display = "none";
781                         }
782                 } */
783                 param = param.nextSibling;
784         }
785 }
786
787 function catchupCurrentFeed() {
788
789         var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
790         
791         var str = __("Mark all articles in %s as read?").replace("%s", fn);
792
793         if (getInitParam("confirm_feed_catchup") != 1 || confirm(str)) {
794                 return viewCurrentFeed('MarkAllRead')
795         }
796 }
797
798 function catchupFeedInGroup(id) {
799
800         try {
801
802                 var title = getFeedName(id);
803
804                 var str = __("Mark all articles in %s as read?").replace("%s", title);
805
806                 if (getInitParam("confirm_feed_catchup") != 1 || confirm(str)) {
807                         return viewCurrentFeed('MarkAllReadGR:' + id)
808                 }
809
810         } catch (e) {
811                 exception_error("catchupFeedInGroup", e);
812         }
813 }
814
815 function editFeedDlg(feed) {
816         try {
817
818                 if (!feed) {
819                         alert(__("Please select some feed first."));
820                         return;
821                 }
822         
823                 if ((feed <= 0) || activeFeedIsCat() || tagsAreDisplayed()) {
824                         alert(__("You can't edit this kind of feed."));
825                         return;
826                 }
827         
828                 var query = "";
829         
830                 if (feed > 0) {
831                         query = "?op=pref-feeds&subop=editfeed&id=" +   param_escape(feed);
832                 } else {
833                         query = "?op=pref-labels&subop=edit&id=" +      param_escape(-feed-11);
834                 }
835
836                 disableHotkeys();
837
838                 notify_progress("Loading, please wait...", true);
839
840                 new Ajax.Request("backend.php", {
841                         parameters: query,
842                         onComplete: function(transport) { 
843                                 infobox_callback2(transport); 
844                         } });
845
846         } catch (e) {
847                 exception_error("editFeedDlg", e);
848         }
849 }
850
851 /* this functions duplicate those of prefs.js feed editor, with
852         some differences because there is no feedlist */
853
854 function feedEditCancel() {
855         closeInfoBox();
856         return false;
857 }
858
859 function feedEditSave() {
860
861         try {
862         
863                 // FIXME: add parameter validation
864
865                 var query = Form.serialize("edit_feed_form");
866
867                 notify_progress("Saving feed...");
868
869                 new Ajax.Request("backend.php", {
870                         parameters: query,
871                         onComplete: function(transport) { 
872                                 dlg_frefresh_callback(transport); 
873                         } });
874
875
876                 closeInfoBox();
877
878                 return false;
879
880         } catch (e) {
881                 exception_error("feedEditSave (main)", e);
882         } 
883 }
884
885 function clearFeedArticles(feed_id) {
886
887         notify_progress("Clearing feed...");
888
889         var query = "?op=pref-feeds&quiet=1&subop=clear&id=" + feed_id;
890
891         new Ajax.Request("backend.php", {
892                 parameters: query,
893                 onComplete: function(transport) {
894                                 dlg_frefresh_callback(transport, feed_id);
895                         } });
896
897         return false;
898 }
899
900 function collapse_feedlist() {
901         try {
902                 debug("collapse_feedlist");
903                 
904                 var theme = getInitParam("theme");
905                 if (theme != "" && theme != "compact" && theme != "graycube" &&
906                                 theme != "compat") return;
907
908                 var fl = $("feeds-holder");
909                 var fh = $("headlines-frame");
910                 var fc = $("content-frame");
911                 var ft = $("toolbar");
912                 var ff = $("footer");
913                 var fhdr = $("header");
914                 var fbtn = $("collapse_feeds_btn");
915
916                 if (!Element.visible(fl)) {
917                         Element.show(fl);
918                         fbtn.innerHTML = "<<";
919
920                         if (theme != "graycube") {
921
922                                 fh.style.left = fl.offsetWidth + "px";
923                                 ft.style.left = fl.offsetWidth + "px";
924                                 if (fc) fc.style.left = fl.offsetWidth + "px";
925                                 if (ff && theme != "compat") ff.style.left = (fl.offsetWidth-1) + "px";
926
927                                 if (theme == "compact") fhdr.style.left = (fl.offsetWidth + 10) + "px";
928                         } else {
929                                 fh.style.left = fl.offsetWidth + 40 + "px";
930                                 ft.style.left = fl.offsetWidth + 40 +"px";
931                                 if (fc) fc.style.left = fl.offsetWidth + 40 + "px";
932                         }
933
934                         query = "?op=rpc&subop=setpref&key=_COLLAPSED_FEEDLIST&value=false";
935
936                         new Ajax.Request("backend.php", { parameters: query });
937
938                 } else {
939                         Element.hide(fl);
940                         fbtn.innerHTML = ">>";
941
942                         if (theme != "graycube") {
943
944                                 fh.style.left = "0px";
945                                 ft.style.left = "0px";
946                                 if (fc) fc.style.left = "0px";
947                                 if (ff) ff.style.left = "0px";
948
949                                 if (theme == "compact") fhdr.style.left = "10px";
950
951                         } else {
952                                 fh.style.left = "20px";
953                                 ft.style.left = "20px";
954                                 if (fc) fc.style.left = "20px";
955
956                         }
957
958                         query = "?op=rpc&subop=setpref&key=_COLLAPSED_FEEDLIST&value=true";
959
960                         new Ajax.Request("backend.php", { parameters: query });
961
962                 }
963         } catch (e) {
964                 exception_error("collapse_feedlist", e);
965         }
966 }
967
968 function viewModeChanged() {
969         cache_empty();
970         return viewCurrentFeed(0, '')
971 }
972
973 function viewLimitChanged() {
974         cache_empty();
975         return viewCurrentFeed(0, '')
976 }
977
978 /* function adjustArticleScore(id, score) {
979         try {
980
981                 var pr = prompt(__("Assign score to article:"), score);
982
983                 if (pr != undefined) {
984                         var query = "?op=rpc&subop=setScore&id=" + id + "&score=" + pr;
985
986                         new Ajax.Request("backend.php", {
987                         parameters: query,
988                         onComplete: function(transport) {
989                                         viewCurrentFeed();
990                                 } });
991
992                 }
993         } catch (e) {
994                 exception_error("adjustArticleScore", e);
995         }
996 } */
997
998 function rescoreCurrentFeed() {
999
1000         var actid = getActiveFeedId();
1001
1002         if (activeFeedIsCat() || actid < 0 || tagsAreDisplayed()) {
1003                 alert(__("You can't rescore this kind of feed."));
1004                 return;
1005         }       
1006
1007         if (!actid) {
1008                 alert(__("Please select some feed first."));
1009                 return;
1010         }
1011
1012         var fn = getFeedName(actid);
1013         var pr = __("Rescore articles in %s?").replace("%s", fn);
1014
1015         if (confirm(pr)) {
1016                 notify_progress("Rescoring articles...");
1017
1018                 var query = "?op=pref-feeds&subop=rescore&quiet=1&ids=" + actid;
1019
1020                 new Ajax.Request("backend.php", {
1021                         parameters: query,
1022                         onComplete: function(transport) {
1023                                 viewCurrentFeed();
1024                         } });
1025         }
1026 }
1027
1028 function hotkey_handler(e) {
1029
1030         try {
1031
1032                 var keycode;
1033                 var shift_key = false;
1034
1035                 var cmdline = $('cmdline');
1036                 var feedlist = $('feedList');
1037
1038                 try {
1039                         shift_key = e.shiftKey;
1040                 } catch (e) {
1041
1042                 }
1043         
1044                 if (window.event) {
1045                         keycode = window.event.keyCode;
1046                 } else if (e) {
1047                         keycode = e.which;
1048                 }
1049
1050                 var keychar = String.fromCharCode(keycode);
1051
1052                 if (keycode == 27) { // escape
1053                         if (Element.visible("hotkey_help_overlay")) {
1054                                 Element.hide("hotkey_help_overlay");
1055                         }
1056                         hotkey_prefix = false;
1057                         closeInfoBox();
1058                 } 
1059
1060                 if (!hotkeys_enabled) {
1061                         debug("hotkeys disabled");
1062                         return;
1063                 }
1064
1065                 if (keycode == 16) return; // ignore lone shift
1066
1067                 if ((keycode == 70 || keycode == 67 || keycode == 71) 
1068                                 && !hotkey_prefix) {
1069
1070                         var date = new Date();
1071                         var ts = Math.round(date.getTime() / 1000);
1072
1073                         hotkey_prefix = keycode;
1074                         hotkey_prefix_pressed = ts;
1075
1076                         cmdline.innerHTML = keychar;
1077                         Element.show(cmdline);
1078
1079                         debug("KP: PREFIX=" + keycode + " CHAR=" + keychar + " TS=" + ts);
1080                         return true;
1081                 }
1082
1083                 if (Element.visible("hotkey_help_overlay")) {
1084                         Element.hide("hotkey_help_overlay");
1085                 }
1086
1087                 /* Global hotkeys */
1088
1089                 Element.hide(cmdline);
1090
1091                 if (!hotkey_prefix) {
1092
1093                         if (keycode == 68 && shift_key) { // d
1094                                 if (!Element.visible("debug_output")) {
1095                                         Element.show("debug_output");
1096                                         debug('debug mode activated');
1097                                 } else {
1098                                         Element.hide("debug_output");
1099                                 }
1100         
1101                                 return;
1102                         }
1103         
1104                         if ((keycode == 191 || keychar == '?') && shift_key) { // ?
1105                                 if (!Element.visible("hotkey_help_overlay")) {
1106                                         //Element.show("hotkey_help_overlay");
1107                                         Effect.Appear("hotkey_help_overlay", {duration : 0.3});
1108                                 } else {
1109                                         Element.hide("hotkey_help_overlay");
1110                                 }
1111                                 return false;
1112                         }
1113
1114                         if (keycode == 191 || keychar == '/') { // /
1115                                 displayDlg("search", getActiveFeedId() + ":" + activeFeedIsCat());
1116                                 return false;
1117                         }
1118
1119                         if (keycode == 82 && shift_key) { // R
1120                                 scheduleFeedUpdate(true);
1121                                 return;
1122                         }
1123
1124                         if (keycode == 74) { // j
1125                                 var feed = getActiveFeedId();
1126                                 var new_feed = getRelativeFeedId2(feed, activeFeedIsCat(), 'prev');
1127 //                              alert(feed + " IC: " + activeFeedIsCat() + " => " + new_feed);
1128                                 if (new_feed) {
1129                                         var is_cat = new_feed.match("CAT:");
1130                                         if (is_cat) {
1131                                                 new_feed = new_feed.replace("CAT:", "");
1132                                                 viewCategory(new_feed);
1133                                         } else {
1134                                                 viewfeed(new_feed, '', false);
1135                                         }
1136                                 }
1137                                 return;
1138                         }
1139         
1140                         if (keycode == 75) { // k
1141                                 var feed = getActiveFeedId();
1142                                 var new_feed = getRelativeFeedId2(feed, activeFeedIsCat(), 'next');
1143 //                              alert(feed + " IC: " + activeFeedIsCat() + " => " + new_feed);
1144                                 if (new_feed) {
1145                                         var is_cat = new_feed.match("CAT:");
1146                                         if (is_cat == "CAT:") {
1147                                                 new_feed = new_feed.replace("CAT:", "");
1148                                                 viewCategory(new_feed);
1149                                         } else {
1150                                                 viewfeed(new_feed, '', false);
1151                                         }
1152                                 }
1153                                 return;
1154                         }
1155
1156                         if (shift_key && keycode == 40) { // shift-down
1157                                 catchupRelativeToArticle(1);
1158                                 return;
1159                         }
1160
1161                         if (shift_key && keycode == 38) { // shift-up
1162                                 catchupRelativeToArticle(0);
1163                                 return;
1164                         }
1165
1166                         if (shift_key && keycode == 78) { // N
1167                                 scrollArticle(50);      
1168                                 return;
1169                         }
1170
1171                         if (shift_key && keycode == 80) { // P
1172                                 scrollArticle(-50);     
1173                                 return;
1174                         }
1175
1176
1177                         if (keycode == 78 || keycode == 40) { // n, down
1178                                 if (typeof moveToPost != 'undefined') {
1179                                         moveToPost('next');
1180                                         return;
1181                                 }
1182                         }
1183         
1184                         if (keycode == 80 || keycode == 38) { // p, up
1185                                 if (typeof moveToPost != 'undefined') {
1186                                         moveToPost('prev');
1187                                         return;
1188                                 }
1189                         }
1190
1191                         if (keycode == 83 && shift_key) { // S
1192                                 var id = getActiveArticleId();
1193                                 if (id) {                               
1194                                         togglePub(id);
1195                                 }
1196                                 return;
1197                         }
1198
1199                         if (keycode == 83) { // s
1200                                 var id = getActiveArticleId();
1201                                 if (id) {                               
1202                                         toggleMark(id);
1203                                 }
1204                                 return;
1205                         }
1206
1207
1208                         if (keycode == 85) { // u
1209                                 var id = getActiveArticleId();
1210                                 if (id) {                               
1211                                         toggleUnread(id);
1212                                 }
1213                                 return;
1214                         }
1215
1216                         if (keycode == 84 && shift_key) { // T
1217                                 var id = getActiveArticleId();
1218                                 if (id) {
1219                                         editArticleTags(id, getActiveFeedId(), isCdmMode());
1220                                         return;
1221                                 }
1222                         }
1223
1224                         if (keycode == 9) { // tab
1225                                 var id = getArticleUnderPointer();
1226                                 if (id) {                               
1227                                         var cb = $("RCHK-" + id);
1228
1229                                         if (cb) {
1230                                                 cb.checked = !cb.checked;
1231                                                 toggleSelectRowById(cb, "RROW-" + id);
1232                                                 return false;
1233                                         }
1234                                 }
1235                         }
1236
1237                         if (keycode == 79) { // o
1238                                 if (getActiveArticleId()) {
1239                                         openArticleInNewWindow(getActiveArticleId());
1240                                         return;
1241                                 }
1242                         }
1243
1244                         if (keycode == 81 && shift_key) { // Q
1245                                 if (typeof catchupAllFeeds != 'undefined') {
1246                                         catchupAllFeeds();
1247                                         return;
1248                                 }
1249                         }
1250
1251                         if (keycode == 88) { // x
1252                                 if (activeFeedIsCat()) {
1253                                         toggleCollapseCat(getActiveFeedId());
1254                                 }
1255                         }
1256                 }
1257
1258                 /* Prefix f */
1259
1260                 if (hotkey_prefix == 70) { // f 
1261
1262                         hotkey_prefix = false;
1263
1264                         if (keycode == 81) { // q
1265                                 if (getActiveFeedId()) {
1266                                         catchupCurrentFeed();
1267                                         return;
1268                                 }
1269                         }
1270
1271                         if (keycode == 82) { // r
1272                                 if (getActiveFeedId()) {
1273                                         viewfeed(getActiveFeedId(), "ForceUpdate", activeFeedIsCat());
1274                                         return;
1275                                 }
1276                         }
1277
1278                         if (keycode == 65) { // a
1279                                 toggleDispRead();
1280                                 return false;
1281                         }
1282
1283                         if (keycode == 85 && shift_key) { // U
1284                                 scheduleFeedUpdate(true);
1285                                 return false;
1286                         }
1287
1288                         if (keycode == 85) { // u
1289                                 if (getActiveFeedId()) {
1290                                         viewfeed(getActiveFeedId(), "ForceUpdate");
1291                                         return false;
1292                                 }
1293                         }
1294
1295                         if (keycode == 69) { // e
1296                                 editFeedDlg(getActiveFeedId());
1297                                 return false;
1298                         }
1299
1300                         if (keycode == 83) { // s
1301                                 displayDlg("quickAddFeed");
1302                                 return false;
1303                         }
1304
1305                         if (keycode == 67 && shift_key) { // C
1306                                 if (typeof catchupAllFeeds != 'undefined') {
1307                                         catchupAllFeeds();
1308                                         return false;
1309                                 }
1310                         }
1311
1312                         if (keycode == 67) { // c
1313                                 if (getActiveFeedId()) {
1314                                         catchupCurrentFeed();
1315                                         return false;
1316                                 }
1317                         }
1318
1319                         if (keycode == 87) { // w
1320                                 feeds_sort_by_unread = !feeds_sort_by_unread;
1321                                 return resort_feedlist();
1322                         }
1323
1324                         if (keycode == 72) { // h
1325                                 hideReadHeadlines();
1326                                 return;
1327                         }
1328
1329                 }
1330
1331                 /* Prefix c */
1332
1333                 if (hotkey_prefix == 67) { // c
1334                         hotkey_prefix = false;
1335
1336                         if (keycode == 70) { // f
1337                                 displayDlg("quickAddFilter", getActiveFeedId());
1338                                 return false;
1339                         }
1340
1341                         if (keycode == 76) { // l
1342                                 addLabel();
1343                                 return false;
1344                         }
1345
1346                         if (keycode == 83) { // s
1347                                 if (typeof collapse_feedlist != 'undefined') {
1348                                         collapse_feedlist();
1349                                         return false;
1350                                 }
1351                         }
1352
1353                         if (keycode == 77) { // m
1354                                 feedlist_sortable_enabled = !feedlist_sortable_enabled;
1355                                 if (feedlist_sortable_enabled) {
1356                                         notify_info("Category reordering enabled");
1357                                         toggle_sortable_feedlist(true);
1358                                 } else {
1359                                         notify_info("Category reordering disabled");
1360                                         toggle_sortable_feedlist(false);
1361                                 }
1362                         }
1363
1364                         if (keycode == 78) { // n
1365                                 catchupRelativeToArticle(1);
1366                                 return;
1367                         }
1368
1369                         if (keycode == 80) { // p
1370                                 catchupRelativeToArticle(0);
1371                                 return;
1372                         }
1373
1374
1375                 }
1376
1377                 /* Prefix g */
1378
1379                 if (hotkey_prefix == 71) { // g
1380
1381                         hotkey_prefix = false;
1382
1383
1384                         if (keycode == 65) { // a
1385                                 viewfeed(-4);
1386                                 return false;
1387                         }
1388
1389                         if (keycode == 83) { // s
1390                                 viewfeed(-1);
1391                                 return false;
1392                         }
1393
1394                         if (keycode == 80 && shift_key) { // P
1395                                 gotoPreferences();
1396                                 return false;
1397                         }
1398
1399                         if (keycode == 80) { // p
1400                                 viewfeed(-2);
1401                                 return false;
1402                         }
1403
1404                         if (keycode == 70) { // f
1405                                 viewfeed(-3);
1406                                 return false;
1407                         }
1408
1409                         if (keycode == 84 && shift_key) { // T
1410                                 toggleTags();
1411                                 return false;
1412                         }
1413                 }
1414
1415                 /* Cmd */
1416
1417                 if (hotkey_prefix == 224 || hotkey_prefix == 91) { // f 
1418                         hotkey_prefix = false;
1419                         return;
1420                 }
1421
1422                 if (hotkey_prefix) {
1423                         debug("KP: PREFIX=" + hotkey_prefix + " CODE=" + keycode + " CHAR=" + keychar);
1424                 } else {
1425                         debug("KP: CODE=" + keycode + " CHAR=" + keychar);
1426                 }
1427
1428
1429         } catch (e) {
1430                 exception_error("hotkey_handler", e);
1431         }
1432 }
1433
1434 function feedsSortByUnread() {
1435         return feeds_sort_by_unread;
1436 }
1437
1438 function addLabel() {
1439
1440         try {
1441
1442                 var caption = prompt(__("Please enter label caption:"), "");
1443
1444                 if (caption != undefined) {
1445         
1446                         if (caption == "") {
1447                                 alert(__("Can't create label: missing caption."));
1448                                 return false;
1449                         }
1450
1451                         var query = "?op=pref-labels&subop=add&caption=" + 
1452                                 param_escape(caption);
1453
1454                         notify_progress("Loading, please wait...", true);
1455
1456                         new Ajax.Request("backend.php", {
1457                                 parameters: query,
1458                                 onComplete: function(transport) { 
1459                                         updateFeedList();
1460                         } });
1461
1462                 }
1463
1464         } catch (e) {
1465                 exception_error("addLabel", e);
1466         }
1467 }
1468
1469 function visitOfficialSite() {
1470         window.open("http://tt-rss.org/");
1471 }
1472
1473 function inPreferences() {
1474         return false;
1475 }