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make main refetch cycle asynchronous
[tt-rss.git] / viewfeed.js
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1var active_post_id = false;
2var last_article_view = false;
3var active_real_feed_id = false;
4
5var _tag_active_post_id = false;
6var _tag_active_feed_id = false;
7var _tag_active_cdm = false;
8
9// FIXME: kludge, to restore scrollTop after tag editor terminates
10var _tag_cdm_scroll = false;
11
12// FIXME: kludges, needs proper implementation
13var _reload_feedlist_after_view = false;
14
15var _cdm_wd_timeout = false;
16var _cdm_wd_vishist = new Array();
17
18var article_cache = new Array();
19
20function catchup_callback() {
21 if (xmlhttp_rpc.readyState == 4) {
22 try {
23 debug("catchup_callback");
24 notify("");
25 all_counters_callback();
26 if (_catchup_callback_func) {
27 setTimeout(_catchup_callback_func, 10);
28 }
29 } catch (e) {
30 exception_error("catchup_callback", e);
31 }
32 }
33}
34
35function catchup_callback2(transport, callback) {
36 try {
37 debug("catchup_callback2 " + transport + ", " + callback);
38 notify("");
39 all_counters_callback2(transport);
40 if (callback) {
41 setTimeout(callback, 10);
42 }
43 } catch (e) {
44 exception_error("catchup_callback2", e);
45 }
46}
47
48function headlines_callback() {
49 if (xmlhttp.readyState == 4) {
50 debug("headlines_callback");
51 var f = document.getElementById("headlines-frame");
52 try {
53 if (feed_cur_page == 0) {
54 debug("resetting headlines scrollTop");
55 f.scrollTop = 0;
56 }
57 } catch (e) { };
58
59 if (xmlhttp.responseXML) {
60 var headlines = xmlhttp.responseXML.getElementsByTagName("headlines")[0];
61 var counters = xmlhttp.responseXML.getElementsByTagName("counters")[0];
62 var articles = xmlhttp.responseXML.getElementsByTagName("article");
63 var runtime_info = xmlhttp.responseXML.getElementsByTagName("runtime-info");
64
65 if (feed_cur_page == 0) {
66 if (headlines) {
67 f.innerHTML = headlines.firstChild.nodeValue;
68 } else {
69 debug("headlines_callback: returned no data");
70 f.innerHTML = "<div class='whiteBox'>" + __('Could not update headlines (missing XML data)') + "</div>";
71
72 }
73 } else {
74 if (headlines) {
75 debug("adding some more headlines...");
76
77 var c = document.getElementById("headlinesList");
78
79 if (!c) {
80 c = document.getElementById("headlinesInnerContainer");
81 }
82
83 c.innerHTML = c.innerHTML + headlines.firstChild.nodeValue;
84 } else {
85 debug("headlines_callback: returned no data");
86 notify_error("Error while trying to load more headlines");
87 }
88
89 }
90
91 if (articles) {
92 for (var i = 0; i < articles.length; i++) {
93 var a_id = articles[i].getAttribute("id");
94 debug("found id: " + a_id);
95 cache_inject(a_id, articles[i].firstChild.nodeValue);
96 }
97 } else {
98 debug("no cached articles received");
99 }
100
101 if (counters) {
102 debug("parsing piggybacked counters: " + counters);
103 parse_counters(counters, false);
104 } else {
105 debug("counters container not found in reply");
106 }
107
108 if (runtime_info) {
109 debug("parsing runtime info: " + runtime_info[0]);
110 parse_runtime_info(runtime_info[0]);
111 } else {
112 debug("counters container not found in reply");
113 }
114
115 } else {
116 debug("headlines_callback: returned no XML object");
117 f.innerHTML = "<div class='whiteBox'>" + __('Could not update headlines (missing XML object)') + "</div>";
118 }
119
120 if (typeof correctPNG != 'undefined') {
121 correctPNG();
122 }
123
124 if (_cdm_wd_timeout) window.clearTimeout(_cdm_wd_timeout);
125
126 if (!document.getElementById("headlinesList") &&
127 getInitParam("cdm_auto_catchup") == 1) {
128 debug("starting CDM watchdog");
129 _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 5000);
130 _cdm_wd_vishist = new Array();
131 } else {
132 debug("not in CDM mode or watchdog disabled");
133 }
134
135 if (_tag_cdm_scroll) {
136 try {
137 document.getElementById("headlinesInnerContainer").scrollTop = _tag_cdm_scroll;
138 _tag_cdm_scroll = false;
139 debug("resetting headlinesInner scrollTop");
140
141 } catch (e) { }
142 }
143
144 notify("");
145 }
146}
147
148function render_article(article) {
149 try {
150 var f = document.getElementById("content-frame");
151 try {
152 f.scrollTop = 0;
153 } catch (e) { };
154
155 f.innerHTML = article;
156
157 } catch (e) {
158 exception_error("render_article", e);
159 }
160}
161
162function article_callback() {
163 if (xmlhttp.readyState == 4) {
164 debug("article_callback");
165
166 try {
167 if (xmlhttp.responseXML) {
168 var reply = xmlhttp.responseXML.firstChild.firstChild;
169
170 var articles = xmlhttp.responseXML.getElementsByTagName("article");
171
172 for (var i = 0; i < articles.length; i++) {
173 var a_id = articles[i].getAttribute("id");
174
175 debug("found id: " + a_id);
176
177 if (a_id == active_post_id) {
178 debug("active article, rendering...");
179 render_article(articles[i].firstChild.nodeValue);
180 }
181
182 cache_inject(a_id, articles[i].firstChild.nodeValue);
183 }
184
185 } else {
186 debug("article_callback: returned no XML object");
187 var f = document.getElementById("content-frame");
188 f.innerHTML = "<div class='whiteBox'>" + __('Could not display article (missing XML object)') + "</div>";
189 }
190 } catch (e) {
191 exception_error("article_callback", e);
192 }
193
194 var date = new Date();
195 last_article_view = date.getTime() / 1000;
196
197 if (typeof correctPNG != 'undefined') {
198 correctPNG();
199 }
200
201 if (_reload_feedlist_after_view) {
202 setTimeout('updateFeedList(false, false)', 50);
203 _reload_feedlist_after_view = false;
204 } else {
205 var counters = xmlhttp.responseXML.getElementsByTagName("counters")[0];
206
207 if (counters) {
208 debug("parsing piggybacked counters: " + counters);
209 parse_counters(counters, false);
210 } else {
211 debug("counters container not found in reply");
212 }
213 }
214
215 notify("");
216 }
217}
218
219function view(id, feed_id, skip_history) {
220
221 try {
222 debug("loading article: " + id + "/" + feed_id);
223
224 active_real_feed_id = feed_id;
225
226 var cached_article = cache_find(id);
227
228 debug("cache check result: " + (cached_article != false));
229
230 enableHotkeys();
231
232 //setActiveFeedId(feed_id);
233
234 var query = "backend.php?op=view&id=" + param_escape(id) +
235 "&feed=" + param_escape(feed_id);
236
237 var date = new Date();
238
239 if (!xmlhttp_ready(xmlhttp) && last_article_view < date.getTime() / 1000 - 15) {
240 debug("<b>xmlhttp seems to be stuck at view, aborting</b>");
241 xmlhttp.abort();
242 if (is_safari()) {
243 debug("trying alternative reset method for Safari");
244 xmlhttp = Ajax.getTransport();
245 }
246 }
247
248 if (xmlhttp_ready(xmlhttp)) {
249
250 active_post_id = id;
251
252 cleanSelected("headlinesList");
253
254 var crow = document.getElementById("RROW-" + active_post_id);
255
256 var article_is_unread = crow.className.match("Unread");
257 debug("article is unread: " + article_is_unread);
258
259 crow.className = crow.className.replace("Unread", "");
260
261 var upd_img_pic = document.getElementById("FUPDPIC-" + active_post_id);
262
263 if (upd_img_pic) {
264 upd_img_pic.src = "images/blank_icon.gif";
265 }
266
267 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
268 markHeadline(active_post_id);
269
270 var neighbor_ids = getRelativePostIds(active_post_id);
271
272 /* only request uncached articles */
273
274 var cids_to_request = Array();
275
276 for (var i = 0; i < neighbor_ids.length; i++) {
277 if (!cache_check(neighbor_ids[i])) {
278 cids_to_request.push(neighbor_ids[i]);
279 }
280 }
281
282 debug("additional ids: " + cids_to_request.toString());
283
284 /* additional info for piggyback counters */
285
286 if (tagsAreDisplayed()) {
287 query = query + "&omode=lt";
288 } else {
289 query = query + "&omode=flc";
290 }
291
292 var date = new Date();
293 var timestamp = Math.round(date.getTime() / 1000);
294 query = query + "&ts=" + timestamp;
295
296 query = query + "&cids=" + cids_to_request.toString();
297
298 if (!cached_article) {
299
300 notify_progress("Loading, please wait...");
301
302 debug(query);
303
304 xmlhttp.open("GET", query, true);
305 xmlhttp.onreadystatechange=article_callback;
306 xmlhttp.send(null);
307 } else if (cached_article && article_is_unread) {
308
309 query = query + "&mode=prefetch";
310
311 debug(query);
312
313 xmlhttp.open("GET", query, true);
314 xmlhttp.onreadystatechange=article_callback;
315 xmlhttp.send(null);
316
317 render_article(cached_article);
318
319 } else if (cached_article) {
320
321 query = query + "&mode=prefetch_old";
322
323 debug(query);
324
325 xmlhttp.open("GET", query, true);
326 xmlhttp.onreadystatechange=article_callback;
327 xmlhttp.send(null);
328
329 render_article(cached_article);
330
331 }
332
333 cache_expire();
334
335 } else {
336 debug("xmlhttp busy (@view)");
337 printLockingError();
338 }
339
340 } catch (e) {
341 exception_error("view", e);
342 }
343}
344
345function tMark(id) {
346 return toggleMark(id);
347}
348
349function tPub(id) {
350 return togglePub(id);
351}
352
353function tMark_afh_off(effect) {
354 try {
355 var elem = effect.effects[0].element;
356
357 debug("tMark_afh_off : " + elem.id);
358
359 if (elem) {
360 elem.src = elem.src.replace("mark_set", "mark_unset");
361 elem.alt = __("Star article");
362 Element.show(elem);
363 }
364
365 } catch (e) {
366 exception_error("tMark_afh_off", e);
367 }
368}
369
370function tPub_afh_off(effect) {
371 try {
372 var elem = effect.effects[0].element;
373
374 debug("tPub_afh_off : " + elem.id);
375
376 if (elem) {
377 elem.src = elem.src.replace("pub_set", "pub_unset");
378 elem.alt = __("Publish article");
379 Element.show(elem);
380 }
381
382 } catch (e) {
383 exception_error("tPub_afh_off", e);
384 }
385}
386
387function toggleMark(id, client_only, no_effects) {
388
389 try {
390
391 var query = "backend.php?op=rpc&id=" + id + "&subop=mark";
392
393 query = query + "&afid=" + getActiveFeedId();
394
395 if (tagsAreDisplayed()) {
396 query = query + "&omode=tl";
397 } else {
398 query = query + "&omode=flc";
399 }
400
401 var mark_img = document.getElementById("FMPIC-" + id);
402 var vfeedu = document.getElementById("FEEDU--1");
403 var crow = document.getElementById("RROW-" + id);
404
405 if (mark_img.src.match("mark_unset")) {
406 mark_img.src = mark_img.src.replace("mark_unset", "mark_set");
407 mark_img.alt = __("Unstar article");
408 query = query + "&mark=1";
409
410/* if (vfeedu && crow.className.match("Unread")) {
411 vfeedu.innerHTML = (+vfeedu.innerHTML) + 1;
412 } */
413
414 } else {
415 //mark_img.src = "images/mark_unset.png";
416 mark_img.alt = __("Please wait...");
417 query = query + "&mark=0";
418
419/* if (vfeedu && crow.className.match("Unread")) {
420 vfeedu.innerHTML = (+vfeedu.innerHTML) - 1;
421 } */
422
423 if (document.getElementById("headlinesList") && !no_effects) {
424 Effect.Puff(mark_img, {duration : 0.25, afterFinish: tMark_afh_off});
425 } else {
426 mark_img.src = mark_img.src.replace("mark_set", "mark_unset");
427 mark_img.alt = __("Star article");
428 }
429 }
430
431/* var vfeedctr = document.getElementById("FEEDCTR--1");
432 var vfeedr = document.getElementById("FEEDR--1");
433
434 if (vfeedu && vfeedctr) {
435 if ((+vfeedu.innerHTML) > 0) {
436 if (crow.className.match("Unread") && !vfeedr.className.match("Unread")) {
437 vfeedr.className = vfeedr.className + "Unread";
438 vfeedctr.className = "odd";
439 }
440 } else {
441 vfeedctr.className = "invisible";
442 vfeedr.className = vfeedr.className.replace("Unread", "");
443 }
444 }
445
446 debug("toggle starred for aid " + id);
447
448 //new Ajax.Request(query); */
449
450 if (!client_only) {
451 debug(query);
452
453// xmlhttp_rpc.open("GET", query, true);
454// xmlhttp_rpc.onreadystatechange=all_counters_callback;
455// xmlhttp_rpc.send(null);
456
457 new Ajax.Request(query, {
458 onComplete: function(transport) {
459 all_counters_callback2(transport);
460 } });
461
462 }
463
464 } catch (e) {
465 exception_error("toggleMark", e);
466 }
467}
468
469function togglePub(id, client_only, no_effects) {
470
471 try {
472
473 var query = "backend.php?op=rpc&id=" + id + "&subop=publ";
474
475 query = query + "&afid=" + getActiveFeedId();
476
477 if (tagsAreDisplayed()) {
478 query = query + "&omode=tl";
479 } else {
480 query = query + "&omode=flc";
481 }
482
483 var mark_img = document.getElementById("FPPIC-" + id);
484 var vfeedu = document.getElementById("FEEDU--2");
485 var crow = document.getElementById("RROW-" + id);
486
487 if (mark_img.src.match("pub_unset")) {
488 mark_img.src = mark_img.src.replace("pub_unset", "pub_set");
489 mark_img.alt = __("Unpublish article");
490 query = query + "&pub=1";
491
492/* if (vfeedu && crow.className.match("Unread")) {
493 vfeedu.innerHTML = (+vfeedu.innerHTML) + 1;
494 } */
495
496 } else {
497 //mark_img.src = "images/pub_unset.png";
498 mark_img.alt = __("Please wait...");
499 query = query + "&pub=0";
500
501/* if (vfeedu && crow.className.match("Unread")) {
502 vfeedu.innerHTML = (+vfeedu.innerHTML) - 1;
503 } */
504
505 if (document.getElementById("headlinesList") && !no_effects) {
506 Effect.Puff(mark_img, {duration : 0.25, afterFinish: tPub_afh_off});
507 } else {
508 mark_img.src = mark_img.src.replace("pub_set", "pub_unset");
509 mark_img.alt = __("Publish article");
510 }
511 }
512
513/* var vfeedctr = document.getElementById("FEEDCTR--2");
514 var vfeedr = document.getElementById("FEEDR--2");
515
516 if (vfeedu && vfeedctr) {
517 if ((+vfeedu.innerHTML) > 0) {
518 if (crow.className.match("Unread") && !vfeedr.className.match("Unread")) {
519 vfeedr.className = vfeedr.className + "Unread";
520 vfeedctr.className = "odd";
521 }
522 } else {
523 vfeedctr.className = "invisible";
524 vfeedr.className = vfeedr.className.replace("Unread", "");
525 }
526 }
527
528 debug("toggle published for aid " + id);
529
530 new Ajax.Request(query); */
531
532 if (!client_only) {
533 new Ajax.Request(query, {
534 onComplete: function(transport) {
535 all_counters_callback2(transport);
536 } });
537 }
538
539 } catch (e) {
540
541 exception_error("togglePub", e);
542 }
543}
544
545function correctHeadlinesOffset(id) {
546
547 try {
548
549 var hlist = document.getElementById("headlinesList");
550 var container = document.getElementById("headlinesInnerContainer");
551 var row = document.getElementById("RROW-" + id);
552
553 var viewport = container.offsetHeight;
554
555 var rel_offset_top = row.offsetTop - container.scrollTop;
556 var rel_offset_bottom = row.offsetTop + row.offsetHeight - container.scrollTop;
557
558 debug("Rtop: " + rel_offset_top + " Rbtm: " + rel_offset_bottom);
559 debug("Vport: " + viewport);
560
561 if (rel_offset_top <= 0 || rel_offset_top > viewport) {
562 container.scrollTop = row.offsetTop;
563 } else if (rel_offset_bottom > viewport) {
564
565 /* doesn't properly work with Opera in some cases because
566 Opera fucks up element scrolling */
567
568 container.scrollTop = row.offsetTop + row.offsetHeight - viewport;
569 }
570
571 } catch (e) {
572 exception_error("correctHeadlinesOffset", e);
573 }
574
575}
576
577function moveToPost(mode) {
578
579 // check for combined mode
580 if (!document.getElementById("headlinesList"))
581 return;
582
583 var rows = getVisibleHeadlineIds();
584
585 var prev_id = false;
586 var next_id = false;
587
588 if (!document.getElementById('RROW-' + active_post_id)) {
589 active_post_id = false;
590 }
591
592 if (active_post_id == false) {
593 next_id = getFirstVisibleHeadlineId();
594 prev_id = getLastVisibleHeadlineId();
595 } else {
596 for (var i = 0; i < rows.length; i++) {
597 if (rows[i] == active_post_id) {
598 prev_id = rows[i-1];
599 next_id = rows[i+1];
600 }
601 }
602 }
603
604 if (mode == "next") {
605 if (next_id) {
606 correctHeadlinesOffset(next_id);
607 view(next_id, getActiveFeedId());
608 }
609 }
610
611 if (mode == "prev") {
612 if (prev_id) {
613 correctHeadlinesOffset(prev_id);
614 view(prev_id, getActiveFeedId());
615 }
616 }
617}
618
619function toggleUnread(id, cmode) {
620 try {
621
622 var row = document.getElementById("RROW-" + id);
623 if (row) {
624 var nc = row.className;
625 nc = nc.replace("Unread", "");
626 nc = nc.replace("Selected", "");
627
628 if (row.className.match("Unread")) {
629 row.className = nc;
630 } else {
631 row.className = nc + "Unread";
632 }
633
634 if (!cmode) cmode = 2;
635
636 var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
637 param_escape(id) + "&cmode=" + param_escape(cmode);
638
639// notify_progress("Loading, please wait...");
640
641 new Ajax.Request(query, {
642 onComplete: function(transport) {
643 all_counters_callback2(transport);
644 } });
645
646 }
647
648
649 } catch (e) {
650 exception_error("toggleUnread", e);
651 }
652}
653
654function selectionToggleUnread(cdm_mode, set_state, callback_func, no_error) {
655 try {
656/* if (!xmlhttp_ready(xmlhttp_rpc)) {
657 printLockingError();
658 return;
659 } */
660
661 var rows;
662
663 if (cdm_mode) {
664 rows = cdmGetSelectedArticles();
665 } else {
666 rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
667 }
668
669 if (rows.length == 0 && !no_error) {
670 alert(__("No articles are selected."));
671 return;
672 }
673
674 for (i = 0; i < rows.length; i++) {
675 var row = document.getElementById("RROW-" + rows[i]);
676 if (row) {
677 var nc = row.className;
678 nc = nc.replace("Unread", "");
679 nc = nc.replace("Selected", "");
680
681 if (set_state == undefined) {
682 if (row.className.match("Unread")) {
683 row.className = nc + "Selected";
684 } else {
685 row.className = nc + "UnreadSelected";
686 }
687 }
688
689 if (set_state == false) {
690 row.className = nc + "Selected";
691 }
692
693 if (set_state == true) {
694 row.className = nc + "UnreadSelected";
695 }
696 }
697 }
698
699 if (rows.length > 0) {
700
701 var cmode = "";
702
703 if (set_state == undefined) {
704 cmode = "2";
705 } else if (set_state == true) {
706 cmode = "1";
707 } else if (set_state == false) {
708 cmode = "0";
709 }
710
711 var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
712 param_escape(rows.toString()) + "&cmode=" + cmode;
713
714// _catchup_callback_func = callback_func;
715
716 debug(callback_func);
717
718 notify_progress("Loading, please wait...");
719
720/* xmlhttp_rpc.open("GET", query, true);
721 xmlhttp_rpc.onreadystatechange=catchup_callback;
722 xmlhttp_rpc.send(null); */
723
724 new Ajax.Request(query, {
725 onComplete: function(transport) {
726 catchup_callback2(transport, callback_func);
727 } });
728
729 }
730
731 } catch (e) {
732 exception_error("selectionToggleUnread", e);
733 }
734}
735
736function selectionToggleMarked(cdm_mode) {
737 try {
738
739 var rows;
740
741 if (cdm_mode) {
742 rows = cdmGetSelectedArticles();
743 } else {
744 rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
745 }
746
747 if (rows.length == 0) {
748 alert(__("No articles are selected."));
749 return;
750 }
751
752 for (i = 0; i < rows.length; i++) {
753 toggleMark(rows[i], true, true);
754 }
755
756 if (rows.length > 0) {
757
758 var query = "backend.php?op=rpc&subop=markSelected&ids=" +
759 param_escape(rows.toString()) + "&cmode=2";
760
761 query = query + "&afid=" + getActiveFeedId();
762
763/* if (tagsAreDisplayed()) {
764 query = query + "&omode=tl";
765 } else {
766 query = query + "&omode=flc";
767 } */
768
769 query = query + "&omode=lc";
770
771 new Ajax.Request(query, {
772 onComplete: function(transport) {
773 all_counters_callback2(transport);
774 } });
775
776 }
777
778 } catch (e) {
779 exception_error("selectionToggleMarked", e);
780 }
781}
782
783function selectionTogglePublished(cdm_mode) {
784 try {
785
786 var rows;
787
788 if (cdm_mode) {
789 rows = cdmGetSelectedArticles();
790 } else {
791 rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
792 }
793
794 if (rows.length == 0) {
795 alert(__("No articles are selected."));
796 return;
797 }
798
799 for (i = 0; i < rows.length; i++) {
800 togglePub(rows[i], true, true);
801 }
802
803 if (rows.length > 0) {
804
805 var query = "backend.php?op=rpc&subop=publishSelected&ids=" +
806 param_escape(rows.toString()) + "&cmode=2";
807
808 query = query + "&afid=" + getActiveFeedId();
809
810/* if (tagsAreDisplayed()) {
811 query = query + "&omode=tl";
812 } else {
813 query = query + "&omode=flc";
814 } */
815
816 query = query + "&omode=lc";
817
818 new Ajax.Request(query, {
819 onComplete: function(transport) {
820 all_counters_callback2(transport);
821 } });
822
823 }
824
825 } catch (e) {
826 exception_error("selectionToggleMarked", e);
827 }
828}
829
830function cdmGetSelectedArticles() {
831 var sel_articles = new Array();
832 var container = document.getElementById("headlinesInnerContainer");
833
834 for (i = 0; i < container.childNodes.length; i++) {
835 var child = container.childNodes[i];
836
837 if (child.id.match("RROW-") && child.className.match("Selected")) {
838 var c_id = child.id.replace("RROW-", "");
839 sel_articles.push(c_id);
840 }
841 }
842
843 return sel_articles;
844}
845
846function cdmGetVisibleArticles() {
847 var sel_articles = new Array();
848 var container = document.getElementById("headlinesInnerContainer");
849
850 for (i = 0; i < container.childNodes.length; i++) {
851 var child = container.childNodes[i];
852
853 if (child.id.match("RROW-")) {
854 var c_id = child.id.replace("RROW-", "");
855 sel_articles.push(c_id);
856 }
857 }
858
859 return sel_articles;
860}
861
862function cdmGetUnreadArticles() {
863 var sel_articles = new Array();
864 var container = document.getElementById("headlinesInnerContainer");
865
866 for (i = 0; i < container.childNodes.length; i++) {
867 var child = container.childNodes[i];
868
869 if (child.id.match("RROW-") && child.className.match("Unread")) {
870 var c_id = child.id.replace("RROW-", "");
871 sel_articles.push(c_id);
872 }
873 }
874
875 return sel_articles;
876}
877
878
879// mode = all,none,unread
880function cdmSelectArticles(mode) {
881 var container = document.getElementById("headlinesInnerContainer");
882
883 for (i = 0; i < container.childNodes.length; i++) {
884 var child = container.childNodes[i];
885
886 if (child.id.match("RROW-")) {
887 var aid = child.id.replace("RROW-", "");
888
889 var cb = document.getElementById("RCHK-" + aid);
890
891 if (mode == "all") {
892 if (!child.className.match("Selected")) {
893 child.className = child.className + "Selected";
894 cb.checked = true;
895 }
896 } else if (mode == "unread") {
897 if (child.className.match("Unread") && !child.className.match("Selected")) {
898 child.className = child.className + "Selected";
899 cb.checked = true;
900 }
901 } else {
902 child.className = child.className.replace("Selected", "");
903 cb.checked = false;
904 }
905 }
906 }
907}
908
909function catchupPage() {
910
911 var fn = getFeedName(getActiveFeedId(), active_feed_is_cat);
912
913 var str = __("Mark all visible articles in %s as read?");
914
915 str = str.replace("%s", fn);
916
917 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
918 return;
919 }
920
921 if (document.getElementById("headlinesList")) {
922 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, 'Unread', true);
923 selectionToggleUnread(false, false, 'viewCurrentFeed()', true);
924 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
925 } else {
926 cdmSelectArticles('all');
927 selectionToggleUnread(true, false, 'viewCurrentFeed()', true)
928 cdmSelectArticles('none');
929 }
930}
931
932function catchupSelection() {
933
934 try {
935
936 var rows;
937
938 if (document.getElementById("headlinesList")) {
939 rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
940 } else {
941 rows = cdmGetSelectedArticles();
942 }
943
944 if (rows.length == 0) {
945 alert(__("No articles are selected."));
946 return;
947 }
948
949
950 var fn = getFeedName(getActiveFeedId(), active_feed_is_cat);
951
952 var str = __("Mark all selected articles in %s as read?");
953
954 str = str.replace("%s", fn);
955
956 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
957 return;
958 }
959
960 if (document.getElementById("headlinesList")) {
961 selectionToggleUnread(false, false, 'viewCurrentFeed()', true);
962 // selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
963 } else {
964 selectionToggleUnread(true, false, 'viewCurrentFeed()', true)
965 // cdmSelectArticles('none');
966 }
967
968 } catch (e) {
969 exception_error("catchupSelection", e);
970 }
971}
972
973
974function labelFromSearch(search, search_mode, match_on, feed_id, is_cat) {
975
976 if (!xmlhttp_ready(xmlhttp_rpc)) {
977 printLockingError();
978 }
979
980 var title = prompt(__("Please enter label title:"), "");
981
982 if (title) {
983
984 var query = "backend.php?op=labelFromSearch&search=" + param_escape(search) +
985 "&smode=" + param_escape(search_mode) + "&match=" + param_escape(match_on) +
986 "&feed=" + param_escape(feed_id) + "&is_cat=" + param_escape(is_cat) +
987 "&title=" + param_escape(title);
988
989 debug("LFS: " + query);
990
991 xmlhttp_rpc.open("GET", query, true);
992 xmlhttp_rpc.onreadystatechange=dlg_frefresh_callback;
993 xmlhttp_rpc.send(null);
994 }
995
996}
997
998function editArticleTags(id, feed_id, cdm_enabled) {
999 _tag_active_post_id = id;
1000 _tag_active_feed_id = feed_id;
1001 _tag_active_cdm = cdm_enabled;
1002
1003 cache_invalidate(id);
1004
1005 try {
1006 _tag_cdm_scroll = document.getElementById("headlinesInnerContainer").scrollTop;
1007 } catch (e) { }
1008 displayDlg('editArticleTags', id);
1009}
1010
1011
1012function tag_saved_callback() {
1013 if (xmlhttp_rpc.readyState == 4) {
1014 try {
1015 debug("in tag_saved_callback");
1016
1017 closeInfoBox();
1018 notify("");
1019
1020 if (tagsAreDisplayed()) {
1021 _reload_feedlist_after_view = true;
1022 }
1023
1024 if (!_tag_active_cdm) {
1025 if (active_post_id == _tag_active_post_id) {
1026 debug("reloading current article");
1027 view(_tag_active_post_id, _tag_active_feed_id);
1028 }
1029 } else {
1030 debug("reloading current feed");
1031 viewCurrentFeed();
1032 }
1033
1034 } catch (e) {
1035 exception_error("catchup_callback", e);
1036 }
1037 }
1038}
1039
1040function editTagsSave() {
1041
1042 if (!xmlhttp_ready(xmlhttp_rpc)) {
1043 printLockingError();
1044 }
1045
1046 notify_progress("Saving article tags...");
1047
1048 var form = document.forms["tag_edit_form"];
1049
1050 var query = Form.serialize("tag_edit_form");
1051
1052 query = "backend.php?op=rpc&subop=setArticleTags&" + query;
1053
1054 debug(query);
1055
1056 xmlhttp_rpc.open("GET", query, true);
1057 xmlhttp_rpc.onreadystatechange=tag_saved_callback;
1058 xmlhttp_rpc.send(null);
1059
1060}
1061
1062function editTagsInsert() {
1063 try {
1064
1065 var form = document.forms["tag_edit_form"];
1066
1067 var found_tags = form.found_tags;
1068 var tags_str = form.tags_str;
1069
1070 var tag = found_tags[found_tags.selectedIndex].value;
1071
1072 if (tags_str.value.length > 0 &&
1073 tags_str.value.lastIndexOf(", ") != tags_str.value.length - 2) {
1074
1075 tags_str.value = tags_str.value + ", ";
1076 }
1077
1078 tags_str.value = tags_str.value + tag + ", ";
1079
1080 found_tags.selectedIndex = 0;
1081
1082 } catch (e) {
1083 exception_error(e, "editTagsInsert");
1084 }
1085}
1086
1087function cdmWatchdog() {
1088
1089 try {
1090
1091 var ctr = document.getElementById("headlinesInnerContainer");
1092
1093 if (!ctr) return;
1094
1095 var ids = new Array();
1096
1097 var e = ctr.firstChild;
1098
1099 while (e) {
1100 if (e.className && e.className == "cdmArticleUnread" && e.id &&
1101 e.id.match("RROW-")) {
1102
1103 // article fits in viewport OR article is longer than viewport and
1104 // its bottom is visible
1105
1106 if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <=
1107 ctr.scrollTop + ctr.offsetHeight) {
1108
1109// debug(e.id + " is visible " + e.offsetTop + "." +
1110// (e.offsetTop + e.offsetHeight) + " vs " + ctr.scrollTop + "." +
1111// (ctr.scrollTop + ctr.offsetHeight));
1112
1113 ids.push(e.id.replace("RROW-", ""));
1114
1115 } else if (e.offsetHeight > ctr.offsetHeight &&
1116 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1117 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
1118
1119 ids.push(e.id.replace("RROW-", ""));
1120
1121 }
1122
1123 // method 2: article bottom is visible and is in upper 1/2 of the viewport
1124
1125/* if (e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1126 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight/2) {
1127
1128 ids.push(e.id.replace("RROW-", ""));
1129
1130 } */
1131
1132 }
1133
1134 e = e.nextSibling;
1135 }
1136
1137 debug("cdmWatchdog, ids= " + ids.toString());
1138
1139 if (ids.length > 0) {
1140
1141 for (var i = 0; i < ids.length; i++) {
1142 var e = document.getElementById("RROW-" + ids[i]);
1143 if (e) {
1144 e.className = e.className.replace("Unread", "");
1145 }
1146 }
1147
1148 var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
1149 param_escape(ids.toString()) + "&cmode=0";
1150
1151 new Ajax.Request(query, {
1152 onComplete: function(transport) {
1153 all_counters_callback2(transport);
1154 } });
1155
1156 }
1157
1158 _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 4000);
1159
1160 } catch (e) {
1161 exception_error(e, "cdmWatchdog");
1162 }
1163
1164}
1165
1166
1167function cache_inject(id, article) {
1168 if (!cache_check(id)) {
1169 debug("cache_article: miss: " + id);
1170
1171 var cache_obj = new Array();
1172
1173 cache_obj["id"] = id;
1174 cache_obj["data"] = article;
1175
1176 article_cache.push(cache_obj);
1177
1178 } else {
1179 debug("cache_article: hit: " + id);
1180 }
1181}
1182
1183function cache_find(id) {
1184 for (var i = 0; i < article_cache.length; i++) {
1185 if (article_cache[i]["id"] == id) {
1186 return article_cache[i]["data"];
1187 }
1188 }
1189 return false;
1190}
1191
1192function cache_check(id) {
1193 for (var i = 0; i < article_cache.length; i++) {
1194 if (article_cache[i]["id"] == id) {
1195 return true;
1196 }
1197 }
1198 return false;
1199}
1200
1201function cache_expire() {
1202 while (article_cache.length > 20) {
1203 article_cache.shift();
1204 }
1205}
1206
1207function cache_invalidate(id) {
1208 var i = 0
1209
1210 try {
1211
1212 while (i < article_cache.length) {
1213 if (article_cache[i]["id"] == id) {
1214 debug("cache_invalidate: removed id " + id);
1215 article_cache.splice(i, 1);
1216 return true;
1217 }
1218 i++;
1219 }
1220 debug("cache_invalidate: id not found: " + id);
1221 return false;
1222 } catch (e) {
1223 exception_error("cache_invalidate", e);
1224 }
1225}
1226
1227function getActiveArticleId() {
1228 return active_post_id;
1229}
1230
1231function cdmMouseIn(elem) {
1232 try {
1233 if (elem.id && elem.id.match("RROW-")) {
1234 var id = elem.id.replace("RROW-", "");
1235 active_post_id = id;
1236 }
1237 } catch (e) {
1238 exception_error("cdmMouseIn", e);
1239 }
1240
1241}
1242
1243function cdmMouseOut(elem) {
1244 active_post_id = false;
1245}
1246
1247function headlines_scroll_handler() {
1248 try {
1249
1250 var e = document.getElementById("headlinesInnerContainer");
1251
1252 if (e.scrollTop + e.offsetHeight > e.scrollHeight - 300) {
1253 debug("more cowbell!");
1254
1255 viewNextFeedPage();
1256 }
1257
1258 } catch (e) {
1259 exception_error("headlines_scroll_handler", e);
1260 }
1261}
1262
1263function catchupRelativeToArticle(below) {
1264
1265 try {
1266
1267 if (!xmlhttp_ready(xmlhttp_rpc)) {
1268 printLockingError();
1269 }
1270
1271 if (!getActiveArticleId()) {
1272 alert(__("No article is selected."));
1273 return;
1274 }
1275
1276 var visible_ids;
1277
1278 if (document.getElementById("headlinesList")) {
1279 visible_ids = getVisibleHeadlineIds();
1280 } else {
1281 visible_ids = cdmGetVisibleArticles();
1282 }
1283
1284 var ids_to_mark = new Array();
1285
1286 if (!below) {
1287 for (var i = 0; i < visible_ids.length; i++) {
1288 if (visible_ids[i] != getActiveArticleId()) {
1289 var e = document.getElementById("RROW-" + visible_ids[i]);
1290
1291 if (e && e.className.match("Unread")) {
1292 ids_to_mark.push(visible_ids[i]);
1293 }
1294 } else {
1295 break;
1296 }
1297 }
1298 } else {
1299 for (var i = visible_ids.length-1; i >= 0; i--) {
1300 if (visible_ids[i] != getActiveArticleId()) {
1301 var e = document.getElementById("RROW-" + visible_ids[i]);
1302
1303 if (e && e.className.match("Unread")) {
1304 ids_to_mark.push(visible_ids[i]);
1305 }
1306 } else {
1307 break;
1308 }
1309 }
1310 }
1311
1312 if (ids_to_mark.length == 0) {
1313 alert(__("No articles found to mark"));
1314 } else {
1315 var msg = __("Mark %d article(s) as read?").replace("%d", ids_to_mark.length);
1316
1317 if (confirm(msg)) {
1318
1319 for (var i = 0; i < ids_to_mark.length; i++) {
1320 var e = document.getElementById("RROW-" + ids_to_mark[i]);
1321 e.className = e.className.replace("Unread", "");
1322 }
1323
1324 var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
1325 param_escape(ids_to_mark.toString()) + "&cmode=0";
1326
1327 xmlhttp_rpc.open("GET", query, true);
1328 xmlhttp_rpc.onreadystatechange=catchup_callback;
1329 xmlhttp_rpc.send(null);
1330
1331 }
1332 }
1333
1334 } catch (e) {
1335 exception_error("catchupRelativeToArticle", e);
1336 }
1337}
web-based news feed (RSS/Atom) reader and aggregator; see https://tt-rss.org/