viewfeed.js

   1 var active_post_id = false;
   2 var last_article_view = false;
   3 var active_real_feed_id = false;
   4
   5 // FIXME: kludges, needs proper implementation
   6 var _reload_feedlist_after_view = false;
   7
   8 var _cdm_wd_timeout = false;
   9 var _cdm_wd_vishist = new Array();
  10
  11 var article_cache = new Array();
  12
  13 var vgroup_last_feed = false;
  14 var post_under_pointer = false;
  15
  16 var last_requested_article = false;
  17
  18 function toggle_published_callback(transport) {
  19         try {
  20                 if (transport.responseXML) {
  21
  22                         all_counters_callback2(transport);
  23
  24                         var note = transport.responseXML.getElementsByTagName("note")[0];
  25
  26                         if (note) {
  27                                 var note_id = note.getAttribute("id");
  28                                 var note_size = note.getAttribute("size");
  29                                 var note_content = note.firstChild.nodeValue;
  30
  31                                 var container = $('POSTNOTE-' + note_id);
  32
  33                                 cache_invalidate(note_id);
  34
  35                                 if (container) {
  36                                         if (note_size == "0") {
  37                                                 Element.hide(container);
  38                                         } else {
  39                                                 container.innerHTML = note_content;
  40                                                 Element.show(container);
  41                                         }
  42                                 }
  43                         }
  44                 }
  45
  46         } catch (e) {
  47                 exception_error("toggle_published_callback", e, transport);
  48         }
  49 }
  50
  51 function catchup_callback2(transport, callback) {
  52         try {
  53                 debug("catchup_callback2 " + transport + ", " + callback);
  54                 notify("");
  55                 all_counters_callback2(transport);
  56                 if (callback) {
  57                         setTimeout(callback, 10);
  58                 }
  59         } catch (e) {
  60                 exception_error("catchup_callback2", e, transport);
  61         }
  62 }
  63
  64 function clean_feed_selections() {
  65         try {
  66                 var feeds = $("feedList").getElementsByTagName("LI");
  67
  68                 for (var i = 0; i < feeds.length; i++) {
  69                         if (feeds[i].id && feeds[i].id.match("FEEDR-")) {
  70                                 feeds[i].className = feeds[i].className.replace("Selected", "");
  71                         }
  72                         if (feeds[i].id && feeds[i].id.match("FCAT-")) {
  73                                 feeds[i].className = feeds[i].className.replace("Selected", "");
  74                         }
  75                 }
  76         } catch (e) {
  77                 exception_error("clean_feed_selections", e);
  78         }
  79 }
  80
  81 function headlines_callback2(transport, feed_cur_page) {
  82         try {
  83
  84                 if (!transport.responseText && db) {
  85                         offlineConfirmModeChange();
  86                         return;
  87                 }
  88
  89                 loading_set_progress(100);
  90
  91                 debug("headlines_callback2 [page=" + feed_cur_page + "]");
  92
  93                 if (!transport_error_check(transport)) return;
  94
  95                 clean_feed_selections();
  96
  97                 var is_cat = false;
  98                 var feed_id = false;
  99
 100                 if (transport.responseXML) {
 101                         var headlines = transport.responseXML.getElementsByTagName("headlines")[0];
 102                         if (headlines) {
 103                                 is_cat = headlines.getAttribute("is_cat");
 104                                 feed_id = headlines.getAttribute("id");
 105                                 setActiveFeedId(feed_id, is_cat);
 106                         }
 107                 }
 108
 109                 if (!is_cat) {
 110                         var feedr = $("FEEDR-" + feed_id);
 111                         if (feedr && !feedr.className.match("Selected")) {
 112                                 feedr.className = feedr.className + "Selected";
 113                         }
 114                 } else {
 115                         var feedr = $("FCAT-" + feed_id);
 116                         if (feedr && !feedr.className.match("Selected")) {
 117                                 feedr.className = feedr.className + "Selected";
 118                         }
 119                 }
 120
 121                 var f = $("headlines-frame");
 122                 try {
 123                         if (feed_cur_page == 0) {
 124                                 debug("resetting headlines scrollTop");
 125                                 f.scrollTop = 0;
 126                         }
 127                 } catch (e) { };
 128
 129                 if (transport.responseXML) {
 130                         var headlines = transport.responseXML.getElementsByTagName("headlines")[0];
 131                         var headlines_count_obj = transport.responseXML.getElementsByTagName("headlines-count")[0];
 132                         var headlines_unread_obj = transport.responseXML.getElementsByTagName("headlines-unread")[0];
 133                         var disable_cache_obj = transport.responseXML.getElementsByTagName("disable-cache")[0];
 134
 135                         var vgroup_last_feed_obj =  transport.responseXML.getElementsByTagName("vgroup-last-feed")[0];
 136
 137                         var headlines_count = headlines_count_obj.getAttribute("value");
 138                         var headlines_unread = headlines_unread_obj.getAttribute("value");
 139                         var disable_cache = disable_cache_obj.getAttribute("value") != "0";
 140
 141                         vgroup_last_feed = vgroup_last_feed_obj.getAttribute("value");
 142
 143                         if (headlines_count == 0) {
 144                                 _infscroll_disable = 1;
 145                         } else {
 146                                 _infscroll_disable = 0;
 147                         }
 148
 149                         var counters = transport.responseXML.getElementsByTagName("counters")[0];
 150                         var articles = transport.responseXML.getElementsByTagName("article");
 151                         var runtime_info = transport.responseXML.getElementsByTagName("runtime-info");
 152
 153                         if (feed_cur_page == 0) {
 154                                 if (headlines) {
 155                                         f.innerHTML = headlines.firstChild.nodeValue;
 156
 157                                         var cache_prefix = "";
 158
 159                                         if (is_cat) {
 160                                                 cache_prefix = "C:";
 161                                         } else {
 162                                                 cache_prefix = "F:";
 163                                         }
 164
 165                                         cache_invalidate(cache_prefix + feed_id);
 166
 167                                         if (!disable_cache) {
 168                                                 cache_inject(cache_prefix + feed_id,
 169                                                         headlines.firstChild.nodeValue, headlines_unread);
 170                                         }
 171
 172                                 } else {
 173                                         debug("headlines_callback: returned no data");
 174                                 f.innerHTML = "<div class='whiteBox'>" + __('Could not update headlines (missing XML data)') + "</div>";
 175
 176                                 }
 177                         } else {
 178                                 if (headlines) {
 179                                         if (headlines_count > 0) {
 180                                                 debug("adding some more headlines...");
 181
 182                                                 var c = $("headlinesList");
 183
 184                                                 if (!c) {
 185                                                         c = $("headlinesInnerContainer");
 186                                                 }
 187
 188                                                 var ids = getSelectedArticleIds2();
 189
 190                                                 c.innerHTML = c.innerHTML + headlines.firstChild.nodeValue;
 191
 192                                                 debug("restore selected ids: " + ids);
 193
 194                                                 for (var i = 0; i < ids.length; i++) {
 195                                                         markHeadline(ids[i]);
 196                                                 }
 197
 198                                         } else {
 199                                                 debug("no new headlines received");
 200                                         }
 201                                 } else {
 202                                         debug("headlines_callback: returned no data");
 203                                         notify_error("Error while trying to load more headlines");
 204                                 }
 205
 206                         }
 207
 208                         if (articles) {
 209                                 for (var i = 0; i < articles.length; i++) {
 210                                         var a_id = articles[i].getAttribute("id");
 211                                         debug("found id: " + a_id);
 212                                         cache_inject(a_id, articles[i].firstChild.nodeValue);
 213                                 }
 214                         } else {
 215                                 debug("no cached articles received");
 216                         }
 217
 218                         if (counters) {
 219                                 debug("parsing piggybacked counters: " + counters);
 220                                 parse_counters(counters, false);
 221                         } else {
 222                                 debug("counters container not found in reply, requesting...");
 223                                 request_counters();
 224                         }
 225
 226                         if (runtime_info) {
 227                                 debug("parsing runtime info: " + runtime_info[0]);
 228                                 parse_runtime_info(runtime_info[0]);
 229                         } else {
 230                                 debug("counters container not found in reply");
 231                         }
 232
 233                 } else {
 234                         debug("headlines_callback: returned no XML object");
 235                         f.innerHTML = "<div class='whiteBox'>" + __('Could not update headlines (missing XML object)') + "</div>";
 236                 }
 237
 238                 if (typeof correctPNG != 'undefined') {
 239                         correctPNG();
 240                 }
 241
 242                 if (_cdm_wd_timeout) window.clearTimeout(_cdm_wd_timeout);
 243
 244                 if (!$("headlinesList") &&
 245                                 getActiveFeedId() != -3 &&
 246                                 getInitParam("cdm_auto_catchup") == 1) {
 247                         debug("starting CDM watchdog");
 248                         _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 5000);
 249                         _cdm_wd_vishist = new Array();
 250                 } else {
 251                         debug("not in CDM mode or watchdog disabled");
 252                 }
 253
 254                 _feed_cur_page = feed_cur_page;
 255                 _infscroll_request_sent = 0;
 256
 257                 notify("");
 258
 259                 remove_splash();
 260
 261         } catch (e) {
 262                 exception_error("headlines_callback2", e, transport);
 263         }
 264 }
 265
 266 function render_article(article) {
 267         try {
 268                 var f = $("content-frame");
 269                 try {
 270                         f.scrollTop = 0;
 271                 } catch (e) { };
 272
 273                 var fi = $("content-insert");
 274
 275                 try {
 276                         fi.scrollTop = 0;
 277                 } catch (e) { };
 278
 279                 fi.innerHTML = article;
 280
 281         } catch (e) {
 282                 exception_error("render_article", e);
 283         }
 284 }
 285
 286 function showArticleInHeadlines(id) {
 287
 288         try {
 289
 290                 cleanSelected("headlinesList");
 291
 292                 var crow = $("RROW-" + id);
 293
 294                 if (!crow) return;
 295
 296                 var article_is_unread = crow.className.match("Unread");
 297
 298                 crow.className = crow.className.replace("Unread", "");
 299
 300                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
 301
 302                 var upd_img_pic = $("FUPDPIC-" + id);
 303
 304                 var cache_prefix = "";
 305
 306                 if (activeFeedIsCat()) {
 307                         cache_prefix = "C:";
 308                 } else {
 309                         cache_prefix = "F:";
 310                 }
 311
 312                 var view_mode = false;
 313
 314                 try {
 315                         view_mode = document.forms['main_toolbar_form'].view_mode;
 316                         view_mode = view_mode[view_mode.selectedIndex].value;
 317                 } catch (e) {
 318                         //
 319                 }
 320
 321                 if (upd_img_pic && upd_img_pic.src.match("updated.png")) {
 322                         upd_img_pic.src = "images/blank_icon.gif";
 323
 324                         cache_invalidate(cache_prefix + getActiveFeedId());
 325
 326                         cache_inject(cache_prefix + getActiveFeedId(),
 327                                 $("headlines-frame").innerHTML,
 328                                 get_feed_unread(getActiveFeedId()));
 329
 330                 } else if (article_is_unread && view_mode == "all_articles") {
 331
 332                         cache_invalidate(cache_prefix + getActiveFeedId());
 333
 334                         cache_inject(cache_prefix + getActiveFeedId(),
 335                                 $("headlines-frame").innerHTML,
 336                                 get_feed_unread(getActiveFeedId())-1);
 337
 338                 } else if (article_is_unread) {
 339                         cache_invalidate(cache_prefix + getActiveFeedId());
 340                 }
 341
 342                 markHeadline(id);
 343
 344         } catch (e) {
 345                 exception_error("showArticleInHeadlines", e);
 346         }
 347 }
 348
 349 function article_callback2(transport, id, feed_id) {
 350         try {
 351                 debug("article_callback2 " + id);
 352
 353                 if (!transport.responseText && db) {
 354                         offlineConfirmModeChange();
 355                         return;
 356                 }
 357
 358                 if (transport.responseXML) {
 359
 360                         if (!transport_error_check(transport)) return;
 361
 362                         debug("looking for articles to cache...");
 363
 364                         var articles = transport.responseXML.getElementsByTagName("article");
 365
 366                         for (var i = 0; i < articles.length; i++) {
 367                                 var a_id = articles[i].getAttribute("id");
 368
 369                                 debug("found id: " + a_id);
 370
 371                                 if (a_id == active_post_id) {
 372                                         debug("active article, rendering...");
 373                                         render_article(articles[i].firstChild.nodeValue);
 374                                 }
 375
 376                                 cache_inject(a_id, articles[i].firstChild.nodeValue);
 377                         }
 378
 379                         if (id != last_requested_article) {
 380                                 debug("requested article id is out of sequence, aborting");
 381                                 return;
 382                         }
 383
 384                         active_real_feed_id = feed_id;
 385                         active_post_id = id;
 386
 387                         showArticleInHeadlines(id);
 388
 389                         if (db) {
 390                                 db.execute("UPDATE articles SET unread = 0 WHERE id = ?", [id]);
 391                         }
 392
 393                         var reply = transport.responseXML.firstChild.firstChild;
 394
 395                 } else {
 396                         debug("article_callback: returned no XML object");
 397                         //var f = $("content-frame");
 398                         //f.innerHTML = "<div class='whiteBox'>" + __('Could not display article (missing XML object)') + "</div>";
 399                 }
 400
 401                 var date = new Date();
 402                 last_article_view = date.getTime() / 1000;
 403
 404                 if (typeof correctPNG != 'undefined') {
 405                         correctPNG();
 406                 }
 407
 408                 if (_reload_feedlist_after_view) {
 409                         setTimeout('updateFeedList(false, false)', 50);
 410                         _reload_feedlist_after_view = false;
 411                 } else {
 412                         if (transport.responseXML) {
 413                                 var counters = transport.responseXML.getElementsByTagName("counters")[0];
 414
 415                                 if (counters) {
 416                                         debug("parsing piggybacked counters: " + counters);
 417                                         parse_counters(counters, false);
 418                                 } else {
 419                                         debug("counters container not found in reply, requesting...");
 420                                         request_counters();
 421                                 }
 422                         }
 423                 }
 424
 425                 notify("");
 426         } catch (e) {
 427                 exception_error("article_callback2", e, transport);
 428         }
 429 }
 430
 431 function view(id, feed_id, skip_history) {
 432
 433         try {
 434                 debug("loading article: " + id + "/" + feed_id);
 435
 436                 if (offline_mode) return view_offline(id, feed_id);
 437
 438                 var cached_article = cache_find(id);
 439
 440                 debug("cache check result: " + (cached_article != false));
 441
 442                 enableHotkeys();
 443
 444                 //setActiveFeedId(feed_id);
 445
 446                 var query = "backend.php?op=view&id=" + param_escape(id) +
 447                         "&feed=" + param_escape(feed_id);
 448
 449                 var date = new Date();
 450
 451                 var neighbor_ids = getRelativePostIds(active_post_id);
 452
 453                 /* only request uncached articles */
 454
 455                 var cids_to_request = Array();
 456
 457                 for (var i = 0; i < neighbor_ids.length; i++) {
 458                         if (!cache_check(neighbor_ids[i])) {
 459                                 cids_to_request.push(neighbor_ids[i]);
 460                         }
 461                 }
 462
 463                 debug("additional ids: " + cids_to_request.toString());
 464
 465                 /* additional info for piggyback counters */
 466
 467                 if (tagsAreDisplayed()) {
 468                         query = query + "&omode=lt";
 469                 } else {
 470                         query = query + "&omode=flc";
 471                 }
 472
 473                 var date = new Date();
 474                 var timestamp = Math.round(date.getTime() / 1000);
 475                 query = query + "&ts=" + timestamp;
 476
 477                 query = query + "&cids=" + cids_to_request.toString();
 478
 479                 var crow = $("RROW-" + id);
 480                 var article_is_unread = crow.className.match("Unread");
 481
 482                 if (!async_counters_work) {
 483                         query = query + "&csync=true";
 484                 }
 485
 486                 showArticleInHeadlines(id);
 487
 488                 if (!cached_article) {
 489
 490                         notify_progress("Loading, please wait...", true);
 491
 492                 } else if (cached_article && article_is_unread) {
 493
 494                         query = query + "&mode=prefetch";
 495
 496                         render_article(cached_article);
 497
 498                 } else if (cached_article) {
 499
 500                         query = query + "&mode=prefetch_old";
 501                         render_article(cached_article);
 502
 503                 }
 504
 505                 cache_expire();
 506
 507                 last_requested_article = id;
 508
 509                 new Ajax.Request(query, {
 510                         onComplete: function(transport) {
 511                                 article_callback2(transport, id, feed_id);
 512                         } });
 513
 514                 return false;
 515
 516         } catch (e) {
 517                 exception_error("view", e);
 518         }
 519 }
 520
 521 function tMark(id) {
 522         return toggleMark(id);
 523 }
 524
 525 function tPub(id) {
 526         return togglePub(id);
 527 }
 528
 529 function tMark_afh_off(effect) {
 530         try {
 531                 var elem = effect.effects[0].element;
 532
 533                 debug("tMark_afh_off : " + elem.id);
 534
 535                 if (elem) {
 536                         elem.src = elem.src.replace("mark_set", "mark_unset");
 537                         elem.alt = __("Star article");
 538                         Element.show(elem);
 539                 }
 540
 541         } catch (e) {
 542                 exception_error("tMark_afh_off", e);
 543         }
 544 }
 545
 546 function tPub_afh_off(effect) {
 547         try {
 548                 var elem = effect.effects[0].element;
 549
 550                 debug("tPub_afh_off : " + elem.id);
 551
 552                 if (elem) {
 553                         elem.src = elem.src.replace("pub_set", "pub_unset");
 554                         elem.alt = __("Publish article");
 555                         Element.show(elem);
 556                 }
 557
 558         } catch (e) {
 559                 exception_error("tPub_afh_off", e);
 560         }
 561 }
 562
 563 function toggleMark(id, client_only, no_effects) {
 564
 565         try {
 566
 567                 var query = "backend.php?op=rpc&id=" + id + "&subop=mark";
 568
 569                 query = query + "&afid=" + getActiveFeedId();
 570
 571                 if (tagsAreDisplayed()) {
 572                         query = query + "&omode=tl";
 573                 } else {
 574                         query = query + "&omode=flc";
 575                 }
 576
 577                 var mark_img = $("FMPIC-" + id);
 578
 579                 if (!mark_img) return;
 580
 581                 var vfeedu = $("FEEDU--1");
 582                 var crow = $("RROW-" + id);
 583
 584                 if (mark_img.src.match("mark_unset")) {
 585                         mark_img.src = mark_img.src.replace("mark_unset", "mark_set");
 586                         mark_img.alt = __("Unstar article");
 587                         query = query + "&mark=1";
 588
 589                         if (db) {
 590                                 db.execute("UPDATE articles SET marked = 1 WHERE id = ?", [id]);
 591                         }
 592
 593                 } else {
 594                         //mark_img.src = "images/mark_unset.png";
 595                         mark_img.alt = __("Please wait...");
 596                         query = query + "&mark=0";
 597
 598                         if ($("headlinesList") && !no_effects) {
 599                                 Effect.Puff(mark_img, {duration : 0.25, afterFinish: tMark_afh_off});
 600                         } else {
 601                                 mark_img.src = mark_img.src.replace("mark_set", "mark_unset");
 602                                 mark_img.alt = __("Star article");
 603                         }
 604
 605                         if (db) {
 606                                 db.execute("UPDATE articles SET marked = 0 WHERE id = ?", [id]);
 607                         }
 608
 609                 }
 610
 611                 if (!no_effects) update_local_feedlist_counters();
 612
 613                 if (!client_only) {
 614                         debug(query);
 615
 616                         new Ajax.Request(query, {
 617                                 onComplete: function(transport) {
 618                                         all_counters_callback2(transport);
 619                                 } });
 620
 621                 }
 622
 623         } catch (e) {
 624                 exception_error("toggleMark", e);
 625         }
 626 }
 627
 628 function togglePub(id, client_only, no_effects, note) {
 629
 630         try {
 631
 632                 var query = "backend.php?op=rpc&id=" + id + "&subop=publ";
 633
 634                 query = query + "&afid=" + getActiveFeedId();
 635
 636                 if (note != undefined) {
 637                         query = query + "&note=" + param_escape(note);
 638                 } else {
 639                         query = query + "&note=undefined";
 640                 }
 641
 642                 if (tagsAreDisplayed()) {
 643                         query = query + "&omode=tl";
 644                 } else {
 645                         query = query + "&omode=flc";
 646                 }
 647
 648                 var mark_img = $("FPPIC-" + id);
 649
 650                 if (!mark_img) return;
 651
 652                 var vfeedu = $("FEEDU--2");
 653                 var crow = $("RROW-" + id);
 654
 655                 if (mark_img.src.match("pub_unset") || note != undefined) {
 656                         mark_img.src = mark_img.src.replace("pub_unset", "pub_set");
 657                         mark_img.alt = __("Unpublish article");
 658                         query = query + "&pub=1";
 659
 660                 } else {
 661                         //mark_img.src = "images/pub_unset.png";
 662                         mark_img.alt = __("Please wait...");
 663                         query = query + "&pub=0";
 664
 665                         if ($("headlinesList") && !no_effects) {
 666                                 Effect.Puff(mark_img, {duration : 0.25, afterFinish: tPub_afh_off});
 667                         } else {
 668                                 mark_img.src = mark_img.src.replace("pub_set", "pub_unset");
 669                                 mark_img.alt = __("Publish article");
 670                         }
 671                 }
 672
 673                 if (!client_only) {
 674                         new Ajax.Request(query, {
 675                                 onComplete: function(transport) {
 676                                         toggle_published_callback(transport);
 677                                 } });
 678                 }
 679
 680         } catch (e) {
 681
 682                 exception_error("togglePub", e);
 683         }
 684 }
 685
 686 function correctHeadlinesOffset(id) {
 687
 688         try {
 689
 690                 var hlist = $("headlinesList");
 691                 var container = $("headlinesInnerContainer");
 692                 var row = $("RROW-" + id);
 693
 694                 var viewport = container.offsetHeight;
 695
 696                 var rel_offset_top = row.offsetTop - container.scrollTop;
 697                 var rel_offset_bottom = row.offsetTop + row.offsetHeight - container.scrollTop;
 698
 699                 debug("Rtop: " + rel_offset_top + " Rbtm: " + rel_offset_bottom);
 700                 debug("Vport: " + viewport);
 701
 702                 if (rel_offset_top <= 0 || rel_offset_top > viewport) {
 703                         container.scrollTop = row.offsetTop;
 704                 } else if (rel_offset_bottom > viewport) {
 705
 706                         /* doesn't properly work with Opera in some cases because
 707                                 Opera fucks up element scrolling */
 708
 709                         container.scrollTop = row.offsetTop + row.offsetHeight - viewport;
 710                 }
 711
 712         } catch (e) {
 713                 exception_error("correctHeadlinesOffset", e);
 714         }
 715
 716 }
 717
 718 function moveToPost(mode) {
 719
 720         try {
 721
 722                 var rows;
 723
 724                 if (isCdmMode()) {
 725                         rows = cdmGetVisibleArticles();
 726                 } else {
 727                         rows = getVisibleHeadlineIds();
 728                 }
 729
 730                 var prev_id = false;
 731                 var next_id = false;
 732
 733                 if (!$('RROW-' + active_post_id)) {
 734                         active_post_id = false;
 735                 }
 736
 737                 if (active_post_id == false) {
 738                         next_id = getFirstVisibleHeadlineId();
 739                         prev_id = getLastVisibleHeadlineId();
 740                 } else {
 741                         for (var i = 0; i < rows.length; i++) {
 742                                 if (rows[i] == active_post_id) {
 743                                         prev_id = rows[i-1];
 744                                         next_id = rows[i+1];
 745                                 }
 746                         }
 747                 }
 748
 749                 if (mode == "next") {
 750                         if (next_id) {
 751                                 if (isCdmMode()) {
 752
 753                                         if (!cdmArticleIsActuallyVisible(next_id)) {
 754                                                 cdmScrollToArticleId(next_id);
 755                                         }
 756                                         cdmSelectArticles("none");
 757                                         toggleUnread(next_id, 0, true);
 758                                         toggleSelected(next_id);
 759
 760                                 } else {
 761                                         correctHeadlinesOffset(next_id);
 762                                         view(next_id, getActiveFeedId());
 763                                 }
 764                         }
 765                 }
 766
 767                 if (mode == "prev") {
 768                         if (prev_id) {
 769                                 if (isCdmMode()) {
 770                                         cdmScrollToArticleId(prev_id);
 771                                         cdmSelectArticles("none");
 772                                         toggleUnread(prev_id, 0, true);
 773                                         toggleSelected(prev_id);
 774                                 } else {
 775                                         correctHeadlinesOffset(prev_id);
 776                                         view(prev_id, getActiveFeedId());
 777                                 }
 778                         }
 779                 }
 780
 781         } catch (e) {
 782                 exception_error("moveToPost", e);
 783         }
 784 }
 785
 786 function toggleSelected(id) {
 787         try {
 788
 789                 var cb = $("RCHK-" + id);
 790
 791                 var row = $("RROW-" + id);
 792                 if (row) {
 793                         var nc = row.className;
 794
 795                         if (!nc.match("Selected")) {
 796                                 nc = nc + "Selected";
 797                                 if (cb) {
 798                                         cb.checked = true;
 799                                 }
 800
 801                                 // In CDM basically last selected article == active article
 802                                 if (isCdmMode()) active_post_id = id;
 803                         } else {
 804                                 nc = nc.replace("Selected", "");
 805                                 if (cb) {
 806                                         cb.checked = false;
 807                                 }
 808
 809                         }
 810
 811                         row.className = nc;
 812                 }
 813         } catch (e) {
 814                 exception_error("toggleSelected", e);
 815         }
 816 }
 817
 818 function toggleUnread_afh(effect) {
 819         try {
 820
 821                 var elem = effect.element;
 822                 elem.style.backgroundColor = "";
 823
 824         } catch (e) {
 825                 exception_error("toggleUnread_afh", e);
 826         }
 827 }
 828
 829 function toggleUnread(id, cmode, effect) {
 830         try {
 831
 832                 var row = $("RROW-" + id);
 833                 if (row) {
 834                         var nc = row.className;
 835                         var is_selected = row.className.match("Selected");
 836                         nc = nc.replace("Unread", "");
 837                         nc = nc.replace("Selected", "");
 838
 839                         // since we are removing selection from the object, uncheck
 840                         // corresponding checkbox
 841
 842                         var cb = $("RCHK-" + id);
 843                         if (cb) {
 844                                 cb.checked = false;
 845                         }
 846
 847                         // NOTE: I'm not sure that resetting selection here is a feature -fox
 848
 849                         if (cmode == undefined || cmode == 2) {
 850                                 if (row.className.match("Unread")) {
 851                                         row.className = nc;
 852
 853                                         if (effect) {
 854                                                 new Effect.Highlight(row, {duration: 1, startcolor: "#fff7d5",
 855                                                         afterFinish: toggleUnread_afh,
 856                                                         queue: { position:'end', scope: 'TMRQ-' + id, limit: 1 } } );
 857                                         }
 858
 859                                 } else {
 860                                         row.className = nc + "Unread";
 861                                 }
 862
 863                                 if (db) {
 864                                         db.execute("UPDATE articles SET unread = not unread "+
 865                                                 "WHERE id = ?", [id]);
 866                                 }
 867
 868                         } else if (cmode == 0) {
 869                                 row.className = nc;
 870
 871                                 if (effect) {
 872                                         new Effect.Highlight(row, {duration: 1, startcolor: "#fff7d5",
 873                                                 afterFinish: toggleUnread_afh,
 874                                                 queue: { position:'end', scope: 'TMRQ-' + id, limit: 1 } } );
 875                                 }
 876
 877                                 if (db) {
 878                                         db.execute("UPDATE articles SET unread = 0 "+
 879                                                 "WHERE id = ?", [id]);
 880                                 }
 881
 882                         } else if (cmode == 1) {
 883                                 row.className = nc + "Unread";
 884
 885                                 if (db) {
 886                                         db.execute("UPDATE articles SET unread = 1 "+
 887                                                 "WHERE id = ?", [id]);
 888                                 }
 889
 890                         }
 891
 892                         update_local_feedlist_counters();
 893
 894                         // Disable unmarking as selected for the time being (16.05.08) -fox
 895                         if (is_selected) row.className = row.className + "Selected";
 896
 897                         if (cmode == undefined) cmode = 2;
 898
 899                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
 900                                 param_escape(id) + "&cmode=" + param_escape(cmode);
 901
 902 //                      notify_progress("Loading, please wait...");
 903
 904                         new Ajax.Request(query, {
 905                                 onComplete: function(transport) {
 906                                         all_counters_callback2(transport);
 907                                 } });
 908
 909                 }
 910
 911         } catch (e) {
 912                 exception_error("toggleUnread", e);
 913         }
 914 }
 915
 916 function selectionRemoveLabel(id) {
 917         try {
 918
 919                 var ids = getSelectedArticleIds2();
 920
 921                 if (ids.length == 0) {
 922                         alert(__("No articles are selected."));
 923                         return;
 924                 }
 925
 926 //              var ok = confirm(__("Remove selected articles from label?"));
 927
 928 //              if (ok) {
 929
 930                         var query = "backend.php?op=rpc&subop=removeFromLabel&ids=" +
 931                                 param_escape(ids.toString()) + "&lid=" + param_escape(id);
 932
 933 //                      notify_progress("Loading, please wait...");
 934
 935                         cache_invalidate("F:" + (-11 - id));
 936
 937                         new Ajax.Request(query, {
 938                                 onComplete: function(transport) {
 939                                         show_labels_in_headlines(transport);
 940                                         all_counters_callback2(transport);
 941                                 } });
 942
 943 //              }
 944
 945         } catch (e) {
 946                 exception_error("selectionAssignLabel", e);
 947
 948         }
 949 }
 950
 951 function selectionAssignLabel(id) {
 952         try {
 953
 954                 var ids = getSelectedArticleIds2();
 955
 956                 if (ids.length == 0) {
 957                         alert(__("No articles are selected."));
 958                         return;
 959                 }
 960
 961 //              var ok = confirm(__("Assign selected articles to label?"));
 962
 963 //              if (ok) {
 964
 965                         cache_invalidate("F:" + (-11 - id));
 966
 967                         var query = "backend.php?op=rpc&subop=assignToLabel&ids=" +
 968                                 param_escape(ids.toString()) + "&lid=" + param_escape(id);
 969
 970 //                      notify_progress("Loading, please wait...");
 971
 972                         new Ajax.Request(query, {
 973                                 onComplete: function(transport) {
 974                                         show_labels_in_headlines(transport);
 975                                         all_counters_callback2(transport);
 976                                 } });
 977
 978 //              }
 979
 980         } catch (e) {
 981                 exception_error("selectionAssignLabel", e);
 982
 983         }
 984 }
 985
 986 function selectionToggleUnread(cdm_mode, set_state, callback_func, no_error) {
 987         try {
 988                 var rows;
 989
 990                 if (cdm_mode) {
 991                         rows = cdmGetSelectedArticles();
 992                 } else {
 993                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 994                 }
 995
 996                 if (rows.length == 0 && !no_error) {
 997                         alert(__("No articles are selected."));
 998                         return;
 999                 }
1000
1001                 for (i = 0; i < rows.length; i++) {
1002                         var row = $("RROW-" + rows[i]);
1003                         if (row) {
1004                                 var nc = row.className;
1005                                 nc = nc.replace("Unread", "");
1006                                 nc = nc.replace("Selected", "");
1007
1008                                 if (set_state == undefined) {
1009                                         if (row.className.match("Unread")) {
1010                                                 row.className = nc + "Selected";
1011                                         } else {
1012                                                 row.className = nc + "UnreadSelected";
1013                                         }
1014                                         if (db) {
1015                                                 db.execute("UPDATE articles SET unread = NOT unread WHERE id = ?",
1016                                                         [rows[i]]);
1017                                         }
1018                                 }
1019
1020                                 if (set_state == false) {
1021                                         row.className = nc + "Selected";
1022                                         if (db) {
1023                                                 db.execute("UPDATE articles SET unread = 0 WHERE id = ?",
1024                                                         [rows[i]]);
1025                                         }
1026                                 }
1027
1028                                 if (set_state == true) {
1029                                         row.className = nc + "UnreadSelected";
1030                                         if (db) {
1031                                                 db.execute("UPDATE articles SET unread = 1 WHERE id = ?",
1032                                                         [rows[i]]);
1033                                         }
1034                                 }
1035                         }
1036                 }
1037
1038                 if (rows.length > 0) {
1039
1040                         update_local_feedlist_counters();
1041
1042                         var cmode = "";
1043
1044                         if (set_state == undefined) {
1045                                 cmode = "2";
1046                         } else if (set_state == true) {
1047                                 cmode = "1";
1048                         } else if (set_state == false) {
1049                                 cmode = "0";
1050                         }
1051
1052                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
1053                                 param_escape(rows.toString()) + "&cmode=" + cmode;
1054
1055                         notify_progress("Loading, please wait...");
1056
1057                         new Ajax.Request(query, {
1058                                 onComplete: function(transport) {
1059                                         catchup_callback2(transport, callback_func);
1060                                 } });
1061
1062                 }
1063
1064         } catch (e) {
1065                 exception_error("selectionToggleUnread", e);
1066         }
1067 }
1068
1069 function selectionToggleMarked(cdm_mode) {
1070         try {
1071
1072                 var rows;
1073
1074                 if (cdm_mode) {
1075                         rows = cdmGetSelectedArticles();
1076                 } else {
1077                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1078                 }
1079
1080                 if (rows.length == 0) {
1081                         alert(__("No articles are selected."));
1082                         return;
1083                 }
1084
1085                 for (i = 0; i < rows.length; i++) {
1086                         toggleMark(rows[i], true, true);
1087                 }
1088
1089                 update_local_feedlist_counters();
1090
1091                 if (rows.length > 0) {
1092
1093                         var query = "backend.php?op=rpc&subop=markSelected&ids=" +
1094                                 param_escape(rows.toString()) + "&cmode=2";
1095
1096                         query = query + "&afid=" + getActiveFeedId();
1097
1098 /*                      if (tagsAreDisplayed()) {
1099                                 query = query + "&omode=tl";
1100                         } else {
1101                                 query = query + "&omode=flc";
1102                         } */
1103
1104                         query = query + "&omode=lc";
1105
1106                         new Ajax.Request(query, {
1107                                 onComplete: function(transport) {
1108                                         all_counters_callback2(transport);
1109                                 } });
1110
1111                 }
1112
1113         } catch (e) {
1114                 exception_error("selectionToggleMarked", e);
1115         }
1116 }
1117
1118 function selectionTogglePublished(cdm_mode) {
1119         try {
1120
1121                 var rows;
1122
1123                 if (cdm_mode) {
1124                         rows = cdmGetSelectedArticles();
1125                 } else {
1126                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1127                 }
1128
1129                 if (rows.length == 0) {
1130                         alert(__("No articles are selected."));
1131                         return;
1132                 }
1133
1134                 for (i = 0; i < rows.length; i++) {
1135                         togglePub(rows[i], true, true);
1136                 }
1137
1138                 if (rows.length > 0) {
1139
1140                         var query = "backend.php?op=rpc&subop=publishSelected&ids=" +
1141                                 param_escape(rows.toString()) + "&cmode=2";
1142
1143                         query = query + "&afid=" + getActiveFeedId();
1144
1145 /*                      if (tagsAreDisplayed()) {
1146                                 query = query + "&omode=tl";
1147                         } else {
1148                                 query = query + "&omode=flc";
1149                         } */
1150
1151                         query = query + "&omode=lc";
1152
1153                         new Ajax.Request(query, {
1154                                 onComplete: function(transport) {
1155                                         all_counters_callback2(transport);
1156                                 } });
1157
1158                 }
1159
1160         } catch (e) {
1161                 exception_error("selectionToggleMarked", e);
1162         }
1163 }
1164
1165 function cdmGetSelectedArticles() {
1166         var sel_articles = new Array();
1167         var container = $("headlinesInnerContainer");
1168
1169         for (i = 0; i < container.childNodes.length; i++) {
1170                 var child = container.childNodes[i];
1171
1172                 if (child.id && child.id.match("RROW-") && child.className.match("Selected")) {
1173                         var c_id = child.id.replace("RROW-", "");
1174                         sel_articles.push(c_id);
1175                 }
1176         }
1177
1178         return sel_articles;
1179 }
1180
1181 function cdmGetVisibleArticles() {
1182         var sel_articles = new Array();
1183         var container = $("headlinesInnerContainer");
1184
1185         if (!container) return sel_articles;
1186
1187         for (i = 0; i < container.childNodes.length; i++) {
1188                 var child = container.childNodes[i];
1189
1190                 if (child.id && child.id.match("RROW-")) {
1191                         var c_id = child.id.replace("RROW-", "");
1192                         sel_articles.push(c_id);
1193                 }
1194         }
1195
1196         return sel_articles;
1197 }
1198
1199 function cdmGetUnreadArticles() {
1200         var sel_articles = new Array();
1201         var container = $("headlinesInnerContainer");
1202
1203         for (i = 0; i < container.childNodes.length; i++) {
1204                 var child = container.childNodes[i];
1205
1206                 if (child.id && child.id.match("RROW-") && child.className.match("Unread")) {
1207                         var c_id = child.id.replace("RROW-", "");
1208                         sel_articles.push(c_id);
1209                 }
1210         }
1211
1212         return sel_articles;
1213 }
1214
1215
1216 // mode = all,none,unread
1217 function cdmSelectArticles(mode) {
1218         var container = $("headlinesInnerContainer");
1219
1220         for (i = 0; i < container.childNodes.length; i++) {
1221                 var child = container.childNodes[i];
1222
1223                 if (child.id && child.id.match("RROW-")) {
1224                         var aid = child.id.replace("RROW-", "");
1225
1226                         var cb = $("RCHK-" + aid);
1227
1228                         if (mode == "all") {
1229                                 if (!child.className.match("Selected")) {
1230                                         child.className = child.className + "Selected";
1231                                         cb.checked = true;
1232                                 }
1233                         } else if (mode == "unread") {
1234                                 if (child.className.match("Unread") && !child.className.match("Selected")) {
1235                                         child.className = child.className + "Selected";
1236                                         cb.checked = true;
1237                                 }
1238                         } else {
1239                                 child.className = child.className.replace("Selected", "");
1240                                 cb.checked = false;
1241                         }
1242                 }
1243         }
1244 }
1245
1246 function catchupPage() {
1247
1248         var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
1249
1250         var str = __("Mark all visible articles in %s as read?");
1251
1252         str = str.replace("%s", fn);
1253
1254         if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1255                 return;
1256         }
1257
1258         if ($("headlinesList")) {
1259                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, 'Unread', true);
1260                 selectionToggleUnread(false, false, 'viewCurrentFeed()', true);
1261                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
1262         } else {
1263                 cdmSelectArticles('all');
1264                 selectionToggleUnread(true, false, 'viewCurrentFeed()', true)
1265                 cdmSelectArticles('none');
1266         }
1267 }
1268
1269 function catchupSelection() {
1270
1271         try {
1272
1273                 var rows;
1274
1275                 if ($("headlinesList")) {
1276                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1277                 } else {
1278                         rows = cdmGetSelectedArticles();
1279                 }
1280
1281                 if (rows.length == 0) {
1282                         alert(__("No articles are selected."));
1283                         return;
1284                 }
1285
1286
1287                 var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
1288
1289                 var str = __("Mark %d selected articles in %s as read?");
1290
1291                 str = str.replace("%d", rows.length);
1292                 str = str.replace("%s", fn);
1293
1294                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1295                         return;
1296                 }
1297
1298                 if ($("headlinesList")) {
1299                         selectionToggleUnread(false, false, 'viewCurrentFeed()', true);
1300         //              selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
1301                 } else {
1302                         selectionToggleUnread(true, false, 'viewCurrentFeed()', true)
1303         //              cdmSelectArticles('none');
1304                 }
1305
1306         } catch (e) {
1307                 exception_error("catchupSelection", e);
1308         }
1309 }
1310
1311 function editArticleTags(id, feed_id, cdm_enabled) {
1312         displayDlg('editArticleTags', id);
1313 }
1314
1315
1316 function tag_saved_callback(transport) {
1317         try {
1318                 debug("in tag_saved_callback");
1319
1320                 closeInfoBox();
1321                 notify("");
1322
1323                 if (tagsAreDisplayed()) {
1324                         _reload_feedlist_after_view = true;
1325                 }
1326
1327
1328                 if (transport.responseXML) {
1329                         var tags_str = transport.responseXML.getElementsByTagName("tags-str")[0];
1330
1331                         if (tags_str) {
1332                                 var id = tags_str.getAttribute("id");
1333
1334                                 if (id) {
1335                                         var tags = $("ATSTR-" + id);
1336                                         if (tags) {
1337                                                 tags.innerHTML = tags_str.firstChild.nodeValue;
1338                                         }
1339                                 }
1340                         }
1341                 }
1342
1343         } catch (e) {
1344                 exception_error("tag_saved_callback", e);
1345         }
1346 }
1347
1348 function editTagsSave() {
1349
1350         notify_progress("Saving article tags...");
1351
1352         var form = document.forms["tag_edit_form"];
1353
1354         var query = Form.serialize("tag_edit_form");
1355
1356         query = "backend.php?op=rpc&subop=setArticleTags&" + query;
1357
1358         debug(query);
1359
1360         new Ajax.Request(query, {
1361                 onComplete: function(transport) {
1362                                 tag_saved_callback(transport);
1363                         } });
1364
1365 }
1366
1367 function editTagsInsert() {
1368         try {
1369
1370                 var form = document.forms["tag_edit_form"];
1371
1372                 var found_tags = form.found_tags;
1373                 var tags_str = form.tags_str;
1374
1375                 var tag = found_tags[found_tags.selectedIndex].value;
1376
1377                 if (tags_str.value.length > 0 &&
1378                                 tags_str.value.lastIndexOf(", ") != tags_str.value.length - 2) {
1379
1380                         tags_str.value = tags_str.value + ", ";
1381                 }
1382
1383                 tags_str.value = tags_str.value + tag + ", ";
1384
1385                 found_tags.selectedIndex = 0;
1386
1387         } catch (e) {
1388                 exception_error("editTagsInsert", e);
1389         }
1390 }
1391
1392 function cdmScrollViewport(where) {
1393         debug("cdmScrollViewport: " + where);
1394
1395         var ctr = $("headlinesInnerContainer");
1396
1397         if (!ctr) return;
1398
1399         if (where == "bottom") {
1400                 ctr.scrollTop = ctr.scrollHeight;
1401         } else {
1402                 ctr.scrollTop = where;
1403         }
1404 }
1405
1406 function cdmArticleIsBelowViewport(id) {
1407         try {
1408                 var ctr = $("headlinesInnerContainer");
1409                 var e = $("RROW-" + id);
1410
1411                 if (!e || !ctr) return;
1412
1413                 // article starts below viewport
1414
1415                 if (ctr.scrollTop < e.offsetTop) {
1416                         return true;
1417                 } else {
1418                         return false;
1419                 }
1420
1421         } catch (e) {
1422                 exception_error("cdmArticleIsVisible", e);
1423         }
1424 }
1425
1426 function cdmArticleIsAboveViewport(id) {
1427         try {
1428                 var ctr = $("headlinesInnerContainer");
1429                 var e = $("RROW-" + id);
1430
1431                 if (!e || !ctr) return;
1432
1433                 // article starts above viewport
1434
1435                 if (ctr.scrollTop > e.offsetTop + e.offsetHeight) {
1436                         return true;
1437                 } else {
1438                         return false;
1439                 }
1440
1441         } catch (e) {
1442                 exception_error("cdmArticleIsVisible", e);
1443         }
1444 }
1445
1446 function cdmScrollToArticleId(id) {
1447         try {
1448                 var ctr = $("headlinesInnerContainer");
1449                 var e = $("RROW-" + id);
1450
1451                 if (!e || !ctr) return;
1452
1453                 ctr.scrollTop = e.offsetTop;
1454
1455         } catch (e) {
1456                 exception_error("cdmScrollToArticleId", e);
1457         }
1458 }
1459
1460 function cdmArticleIsActuallyVisible(id) {
1461         try {
1462                 var ctr = $("headlinesInnerContainer");
1463                 var e = $("RROW-" + id);
1464
1465                 if (!e || !ctr) return;
1466
1467                 // article fits in viewport OR article is longer than viewport and
1468                 // its bottom is visible
1469
1470                 if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <=
1471                                 ctr.scrollTop + ctr.offsetHeight) {
1472
1473                         return true;
1474
1475                 } else if (e.offsetHeight > ctr.offsetHeight &&
1476                                 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1477                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
1478
1479                         return true;
1480
1481                 }
1482
1483                 return false;
1484
1485         } catch (e) {
1486                 exception_error("cdmArticleIsVisible", e);
1487         }
1488 }
1489
1490 function cdmWatchdog() {
1491
1492         try {
1493
1494                 var ctr = $("headlinesInnerContainer");
1495
1496                 if (!ctr) return;
1497
1498                 var ids = new Array();
1499
1500                 var e = ctr.firstChild;
1501
1502                 while (e) {
1503                         if (e.className && e.className == "cdmArticleUnread" && e.id &&
1504                                         e.id.match("RROW-")) {
1505
1506                                 // article fits in viewport OR article is longer than viewport and
1507                                 // its bottom is visible
1508
1509                                 if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <=
1510                                                 ctr.scrollTop + ctr.offsetHeight) {
1511
1512 //                                      debug(e.id + " is visible " + e.offsetTop + "." +
1513 //                                              (e.offsetTop + e.offsetHeight) + " vs " + ctr.scrollTop + "." +
1514 //                                              (ctr.scrollTop + ctr.offsetHeight));
1515
1516                                         ids.push(e.id.replace("RROW-", ""));
1517
1518                                 } else if (e.offsetHeight > ctr.offsetHeight &&
1519                                                 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1520                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
1521
1522                                         ids.push(e.id.replace("RROW-", ""));
1523
1524                                 }
1525
1526                                 // method 2: article bottom is visible and is in upper 1/2 of the viewport
1527
1528 /*                              if (e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1529                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight/2) {
1530
1531                                         ids.push(e.id.replace("RROW-", ""));
1532
1533                                 } */
1534
1535                         }
1536
1537                         e = e.nextSibling;
1538                 }
1539
1540                 debug("cdmWatchdog, ids= " + ids.toString());
1541
1542                 if (ids.length > 0) {
1543
1544                         for (var i = 0; i < ids.length; i++) {
1545                                 var e = $("RROW-" + ids[i]);
1546                                 if (e) {
1547                                         e.className = e.className.replace("Unread", "");
1548                                 }
1549                         }
1550
1551                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
1552                                 param_escape(ids.toString()) + "&cmode=0";
1553
1554                         new Ajax.Request(query, {
1555                                 onComplete: function(transport) {
1556                                         all_counters_callback2(transport);
1557                                 } });
1558
1559                 }
1560
1561                 _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 4000);
1562
1563         } catch (e) {
1564                 exception_error("cdmWatchdog", e);
1565         }
1566
1567 }
1568
1569
1570 function cache_inject(id, article, param) {
1571         try {
1572                 if (!cache_check_param(id, param)) {
1573                         debug("cache_article: miss: " + id + " [p=" + param + "]");
1574
1575
1576                         if (db) {
1577
1578                            var date = new Date();
1579                       var ts = Math.round(date.getTime() / 1000);
1580
1581                                 db.execute("INSERT INTO cache (id, article, param, added) VALUES (?, ?, ?, ?)",
1582                                         [id, article, param, ts]);
1583                         } else {
1584
1585                                 var cache_obj = new Array();
1586
1587                                 cache_obj["id"] = id;
1588                                 cache_obj["data"] = article;
1589                                 cache_obj["param"] = param;
1590
1591                                 article_cache.push(cache_obj);
1592                         }
1593
1594                 } else {
1595                         debug("cache_article: hit: " + id + " [p=" + param + "]");
1596                 }
1597         } catch (e) {
1598                 exception_error("cache_inject", e);
1599         }
1600 }
1601
1602 function cache_find(id) {
1603
1604         if (db) {
1605                 var rs = db.execute("SELECT article FROM cache WHERE id = ?", [id]);
1606                 var a = false;
1607
1608                 if (rs.isValidRow()) {
1609                         var a = rs.field(0);
1610                 }
1611
1612                 rs.close();
1613
1614                 return a;
1615
1616         } else {
1617                 for (var i = 0; i < article_cache.length; i++) {
1618                         if (article_cache[i]["id"] == id) {
1619                                 return article_cache[i]["data"];
1620                         }
1621                 }
1622         }
1623         return false;
1624 }
1625
1626 function cache_find_param(id, param) {
1627
1628         if (db) {
1629                 var rs = db.execute("SELECT article FROM cache WHERE id = ? AND param = ?",
1630                         [id, param]);
1631                 var a = false;
1632
1633                 if (rs.isValidRow()) {
1634                         a = rs.field(0);
1635                 }
1636
1637                 rs.close();
1638
1639                 return a;
1640
1641         } else {
1642                 for (var i = 0; i < article_cache.length; i++) {
1643                         if (article_cache[i]["id"] == id && article_cache[i]["param"] == param) {
1644                                 return article_cache[i]["data"];
1645                         }
1646                 }
1647         }
1648         return false;
1649 }
1650
1651 function cache_check(id) {
1652
1653         if (db) {
1654                 var rs = db.execute("SELECT COUNT(*) AS c FROM cache WHERE id = ?",
1655                         [id]);
1656                 var a = false;
1657
1658                 if (rs.isValidRow()) {
1659                          a = rs.field(0) != "0";
1660                 }
1661
1662                 rs.close();
1663
1664                 return a;
1665
1666         } else {
1667                 for (var i = 0; i < article_cache.length; i++) {
1668                         if (article_cache[i]["id"] == id) {
1669                                 return true;
1670                         }
1671                 }
1672         }
1673         return false;
1674 }
1675
1676 function cache_check_param(id, param) {
1677
1678         if (db) {
1679                 var rs = db.execute("SELECT COUNT(*) AS c FROM cache WHERE id = ? AND param = ?",
1680                         [id, param]);
1681                 var a = false;
1682
1683                 if (rs.isValidRow()) {
1684                         a = rs.field(0) != "0";
1685                 }
1686
1687                 rs.close();
1688
1689                 return a;
1690
1691         } else {
1692                 for (var i = 0; i < article_cache.length; i++) {
1693                         if (article_cache[i]["id"] == id && article_cache[i]["param"] == param) {
1694                                 return true;
1695                         }
1696                 }
1697         }
1698         return false;
1699 }
1700
1701 function cache_expire() {
1702         if (db) {
1703                 var date = new Date();
1704                 var ts = Math.round(date.getTime() / 1000);
1705
1706                 db.execute("DELETE FROM cache WHERE added < ? - 1800 AND id LIKE 'FEEDLIST'", [ts]);
1707                 db.execute("DELETE FROM cache WHERE added < ? - 600 AND (id LIKE 'F:%' OR id LIKE 'C:%')", [ts]);
1708                 db.execute("DELETE FROM cache WHERE added < ? - 86400", [ts]);
1709
1710
1711         } else {
1712                 while (article_cache.length > 25) {
1713                         article_cache.shift();
1714                 }
1715         }
1716 }
1717
1718 function cache_empty() {
1719         article_cache = new Array();
1720 }
1721
1722 function cache_invalidate(id) {
1723         try {
1724
1725                 if (db) {
1726                         rs = db.execute("DELETE FROM cache WHERE id = ?", [id]);
1727                         return rs.rowsAffected != 0;
1728                 } else {
1729
1730                         var i = 0
1731
1732                         while (i < article_cache.length) {
1733                                 if (article_cache[i]["id"] == id) {
1734                                         debug("cache_invalidate: removed id " + id);
1735                                         article_cache.splice(i, 1);
1736                                         return true;
1737                                 }
1738                                 i++;
1739                         }
1740                 }
1741
1742                 debug("cache_invalidate: id not found: " + id);
1743                 return false;
1744         } catch (e) {
1745                 exception_error("cache_invalidate", e);
1746         }
1747 }
1748
1749 function getActiveArticleId() {
1750         return active_post_id;
1751 }
1752
1753 function cdmClicked(id) {
1754         try {
1755                 var elem = $("RROW-" + id);
1756
1757                 if (elem) {
1758                         var id = elem.id.replace("RROW-", "");
1759                         active_post_id = id;
1760
1761 //                      cdmSelectArticles("none");
1762                         toggleUnread(id, 0, true);
1763 //                      toggleSelected(id);
1764
1765                 }
1766         } catch (e) {
1767                 exception_error("cdmClicked", e);
1768         }
1769 }
1770
1771 function preload_article_callback(transport) {
1772         try {
1773                 if (transport.responseXML) {
1774                         var articles = transport.responseXML.getElementsByTagName("article");
1775
1776                         for (var i = 0; i < articles.length; i++) {
1777                                 var id = articles[i].getAttribute("id");
1778                                 if (!cache_check(id)) {
1779                                         cache_inject(id, articles[i].firstChild.nodeValue);
1780                                         debug("preloaded article: " + id);
1781                                 }
1782                         }
1783                 }
1784         } catch (e) {
1785                 exception_error("preload_article_callback", e);
1786         }
1787 }
1788
1789 function preloadArticleUnderPointer(id) {
1790         try {
1791                 if (getInitParam("bw_limit") == "1") return;
1792
1793                 if (post_under_pointer == id && !cache_check(id)) {
1794
1795                         debug("trying to preload article " + id);
1796
1797                         var neighbor_ids = getRelativePostIds(id, 1);
1798
1799                         /* only request uncached articles */
1800
1801                         var cids_to_request = Array();
1802
1803                         for (var i = 0; i < neighbor_ids.length; i++) {
1804                                 if (!cache_check(neighbor_ids[i])) {
1805                                         cids_to_request.push(neighbor_ids[i]);
1806                                 }
1807                         }
1808                         debug("additional ids: " + cids_to_request.toString());
1809
1810                         cids_to_request.push(id);
1811
1812                         var query = "backend.php?op=rpc&subop=getArticles&ids=" +
1813                                 cids_to_request.toString();
1814                         new Ajax.Request(query, {
1815                                 onComplete: function(transport) {
1816                                         preload_article_callback(transport);
1817                         } });
1818                 }
1819         } catch (e) {
1820                 exception_error("preloadArticleUnderPointer", e);
1821         }
1822 }
1823
1824 function postMouseIn(id) {
1825         try {
1826                 if (post_under_pointer != id) {
1827                         post_under_pointer = id;
1828                         if (!isCdmMode()) {
1829                                 window.setTimeout("preloadArticleUnderPointer(" + id + ")", 250);
1830                         }
1831                 }
1832
1833         } catch (e) {
1834                 exception_error("postMouseIn", e);
1835         }
1836 }
1837
1838 function postMouseOut(id) {
1839         try {
1840                 post_under_pointer = false;
1841         } catch (e) {
1842                 exception_error("postMouseOut", e);
1843         }
1844 }
1845
1846 function headlines_scroll_handler() {
1847         try {
1848
1849                 var e = $("headlinesInnerContainer");
1850
1851                 // don't do infinite scrolling when Limit == All
1852
1853                 var toolbar_form = document.forms["main_toolbar_form"];
1854
1855                 var limit = toolbar_form.limit[toolbar_form.limit.selectedIndex];
1856                 if (limit.value != 0) {
1857
1858                         debug((e.scrollTop + e.offsetHeight) + " vs " + e.scrollHeight + " dis? " +
1859                                 _infscroll_disable);
1860
1861                         if (e.scrollTop + e.offsetHeight > e.scrollHeight - 100) {
1862                                 if (!_infscroll_disable) {
1863                                         debug("more cowbell!");
1864                                         viewNextFeedPage();
1865                                 }
1866                         }
1867                 }
1868
1869         } catch (e) {
1870                 exception_error("headlines_scroll_handler", e);
1871         }
1872 }
1873
1874 function catchupRelativeToArticle(below) {
1875
1876         try {
1877
1878
1879                 if (!getActiveArticleId()) {
1880                         alert(__("No article is selected."));
1881                         return;
1882                 }
1883
1884                 var visible_ids;
1885
1886                 if ($("headlinesList")) {
1887                         visible_ids = getVisibleHeadlineIds();
1888                 } else {
1889                         visible_ids = cdmGetVisibleArticles();
1890                 }
1891
1892                 var ids_to_mark = new Array();
1893
1894                 if (!below) {
1895                         for (var i = 0; i < visible_ids.length; i++) {
1896                                 if (visible_ids[i] != getActiveArticleId()) {
1897                                         var e = $("RROW-" + visible_ids[i]);
1898
1899                                         if (e && e.className.match("Unread")) {
1900                                                 ids_to_mark.push(visible_ids[i]);
1901                                         }
1902                                 } else {
1903                                         break;
1904                                 }
1905                         }
1906                 } else {
1907                         for (var i = visible_ids.length-1; i >= 0; i--) {
1908                                 if (visible_ids[i] != getActiveArticleId()) {
1909                                         var e = $("RROW-" + visible_ids[i]);
1910
1911                                         if (e && e.className.match("Unread")) {
1912                                                 ids_to_mark.push(visible_ids[i]);
1913                                         }
1914                                 } else {
1915                                         break;
1916                                 }
1917                         }
1918                 }
1919
1920                 if (ids_to_mark.length == 0) {
1921                         alert(__("No articles found to mark"));
1922                 } else {
1923                         var msg = __("Mark %d article(s) as read?").replace("%d", ids_to_mark.length);
1924
1925                         if (confirm(msg)) {
1926
1927                                 for (var i = 0; i < ids_to_mark.length; i++) {
1928                                         var e = $("RROW-" + ids_to_mark[i]);
1929                                         e.className = e.className.replace("Unread", "");
1930                                 }
1931
1932                                 var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
1933                                         param_escape(ids_to_mark.toString()) + "&cmode=0";
1934
1935                                 new Ajax.Request(query, {
1936                                         onComplete: function(transport) {
1937                                                 catchup_callback2(transport);
1938                                         } });
1939
1940                         }
1941                 }
1942
1943         } catch (e) {
1944                 exception_error("catchupRelativeToArticle", e);
1945         }
1946 }
1947
1948 function cdmExpandArticle(a_id) {
1949         try {
1950                 var id = 'CICD-' + a_id;
1951
1952                 try {
1953                         Element.hide("CEXC-" + a_id);
1954                 } catch (e) { }
1955
1956                 Effect.Appear(id, {duration : 0.5,
1957                         beforeStart: function(effect) {
1958                                 var h_id = 'CICH-' + a_id;
1959                                 var h_elem = $(h_id);
1960                                 if (h_elem) { h_elem.style.display = "none"; }
1961
1962                                 toggleUnread(a_id, 0);
1963                         }});
1964
1965
1966         } catch (e) {
1967                 exception_error("appearBlockElementF", e);
1968         }
1969
1970 }
1971
1972 function fixHeadlinesOrder(ids) {
1973         try {
1974                 for (var i = 0; i < ids.length; i++) {
1975                         var e = $("RROW-" + ids[i]);
1976
1977                         if (e) {
1978                                 if (i % 2 == 0) {
1979                                         e.className = e.className.replace("even", "odd");
1980                                 } else {
1981                                         e.className = e.className.replace("odd", "even");
1982                                 }
1983                         }
1984                 }
1985         } catch (e) {
1986                 exception_error("fixHeadlinesOrder", e);
1987         }
1988 }
1989
1990 function hideReadHeadlines() {
1991         try {
1992
1993                 var ids = false;
1994                 var vis_ids = new Array();
1995
1996                 if ($("headlinesList")) {
1997                         ids = getVisibleHeadlineIds();
1998                 } else {
1999                         ids = cdmGetVisibleArticles();
2000                 }
2001
2002                 var read_headlines_visible = true;
2003
2004                 for (var i = 0; i < ids.length; i++) {
2005                         var row = $("RROW-" + ids[i]);
2006
2007                         if (row && row.className) {
2008                                 if (read_headlines_visible) {
2009                                         if (row.className.match("Unread") || row.className.match("Selected")) {
2010                                                 Element.show(row);
2011                                                 vis_ids.push(ids[i]);
2012                                         } else {
2013                                                 //Effect.Fade(row, {duration : 0.3});
2014                                                 Element.hide(row);
2015                                         }
2016                                 } else {
2017                                         Element.show(row);
2018                                         vis_ids.push(ids[i]);
2019                                 }
2020                         }
2021                 }
2022
2023                 fixHeadlinesOrder(vis_ids);
2024
2025                 read_headlines_visible = !read_headlines_visible;
2026
2027         } catch (e) {
2028                 exception_error("hideReadHeadlines", e);
2029         }
2030 }
2031
2032 function invertHeadlineSelection() {
2033         try {
2034                 var rows = new Array();
2035                 var r = false;
2036
2037                 if (!isCdmMode()) {
2038                         r = document.getElementsByTagName("TR");
2039                 } else {
2040                         r = document.getElementsByTagName("DIV");
2041                 }
2042
2043                 for (var i = 0; i < r.length; i++) {
2044                         if (r[i].id && r[i].id.match("RROW-")) {
2045                                 rows.push(r[i]);
2046                         }
2047                 }
2048
2049                 for (var i = 0; i < rows.length; i++) {
2050                         var nc = rows[i].className;
2051                         var id = rows[i].id.replace("RROW-", "");
2052                         var cb = $("RCHK-" + id);
2053
2054                         if (!rows[i].className.match("Selected")) {
2055                                 nc = nc + "Selected";
2056                                 cb.checked = true;
2057                         } else {
2058                                 nc = nc.replace("Selected", "");
2059                                 cb.checked = false;
2060                         }
2061
2062                         rows[i].className = nc;
2063
2064                 }
2065
2066         } catch (e) {
2067                 exception_error("invertHeadlineSelection", e);
2068         }
2069 }
2070
2071 function getArticleUnderPointer() {
2072         return post_under_pointer;
2073 }
2074
2075 function zoomToArticle(id) {
2076         try {
2077                 var w = window.open("backend.php?op=view&mode=zoom&id=" + param_escape(id),
2078                         "ttrss_zoom_" + id,
2079                         "status=0,toolbar=0,location=0,width=450,height=300,scrollbars=1,menubar=0");
2080
2081         } catch (e) {
2082                 exception_error("zoomToArticle", e);
2083         }
2084 }
2085
2086 function showOriginalArticleInline(id) {
2087         try {
2088
2089                 var query = "backend.php?op=rpc&subop=getArticleLink&id=" + id;
2090
2091                 notify_progress("Loading, please wait...", true);
2092
2093                 new Ajax.Request(query, {
2094                         onComplete: function(transport) {
2095
2096                                 if (transport.responseXML) {
2097
2098                                         var link = transport.responseXML.getElementsByTagName("link")[0];
2099                                         var id = transport.responseXML.getElementsByTagName("id")[0];
2100
2101                                         notify("");
2102
2103                                         if (link && id) {
2104                                                 link = link.firstChild.nodeValue;
2105
2106                                                 var ci = $("content-insert");
2107
2108                                                 var tmp = "<iframe id=\"inline_orig_article\" width=\""+ci.offsetWidth+"\" height=\""+ci.offsetHeight+"\" style=\"border-width : 0px;\" src=\""+link+"\"></iframe>";
2109
2110                                                 render_article(tmp);
2111
2112                                         }
2113                                 }
2114                         } });
2115
2116         } catch (e) {
2117                 exception_error("showOriginalArticleInline", e);
2118         }
2119 }
2120
2121
2122 function scrollArticle(offset) {
2123         try {
2124                 if (!isCdmMode()) {
2125                         var ci = $("content-insert");
2126                         if (ci) {
2127                                 ci.scrollTop += offset;
2128                         }
2129                 } else {
2130                         var hi = $("headlinesInnerContainer");
2131                         if (hi) {
2132                                 hi.scrollTop += offset;
2133                         }
2134
2135                 }
2136         } catch (e) {
2137                 exception_error("scrollArticle", e);
2138         }
2139 }
2140
2141 function show_labels_in_headlines(transport) {
2142         try {
2143                 if (transport.responseXML) {
2144                         var info = transport.responseXML.getElementsByTagName("info-for-headlines")[0];
2145
2146                         var elems = info.getElementsByTagName("entry");
2147
2148                         for (var l = 0; l < elems.length; l++) {
2149                                 var e_id = elems[l].getAttribute("id");
2150
2151                                 if (e_id) {
2152
2153                                         var ctr = $("HLLCTR-" + e_id);
2154
2155                                         if (ctr) {
2156                                                 ctr.innerHTML = elems[l].firstChild.nodeValue;
2157                                         }
2158                                 }
2159
2160                         }
2161
2162                 }
2163         } catch (e) {
2164                 exception_error("show_labels_in_headlines", e);
2165
2166         }
2167 }
2168
2169 function toggleHeadlineActions() {
2170         try {
2171                 var e = $("headlineActionsBody");
2172                 var p = $("headlineActionsDrop");
2173
2174                 if (!Element.visible(e)) {
2175                         Element.show(e);
2176                 } else {
2177                         Element.hide(e);
2178                 }
2179
2180                 e.scrollTop = 0;
2181                 e.style.left = (p.offsetLeft + 1) + "px";
2182                 e.style.top = (p.offsetTop + p.offsetHeight + 2) + "px";
2183
2184         } catch (e) {
2185                 exception_error("toggleHeadlineActions", e);
2186         }
2187 }
2188
2189 function publishWithNote(id, def_note) {
2190         try {
2191                 if (!def_note) def_note = '';
2192
2193                 var note = prompt(__("Please enter a note for this article:"), def_note);
2194
2195                 if (note != undefined) {
2196                         togglePub(id, false, false, note);
2197                 }
2198
2199         } catch (e) {
2200                 exception_error("publishWithNote", e);
2201         }
2202 }