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 catchup_callback2(transport, callback) {
  19         try {
  20                 debug("catchup_callback2 " + transport + ", " + callback);
  21                 notify("");
  22                 all_counters_callback2(transport);
  23                 if (callback) {
  24                         setTimeout(callback, 10);
  25                 }
  26         } catch (e) {
  27                 exception_error("catchup_callback2", e, transport);
  28         }
  29 }
  30
  31 function clean_feed_selections() {
  32         try {
  33                 var feeds = $("feedList").getElementsByTagName("LI");
  34
  35                 for (var i = 0; i < feeds.length; i++) {
  36                         if (feeds[i].id && feeds[i].id.match("FEEDR-")) {
  37                                 feeds[i].className = feeds[i].className.replace("Selected", "");
  38                         }
  39                         if (feeds[i].id && feeds[i].id.match("FCAT-")) {
  40                                 feeds[i].className = feeds[i].className.replace("Selected", "");
  41                         }
  42                 }
  43         } catch (e) {
  44                 exception_error("clean_feed_selections", e);
  45         }
  46 }
  47
  48 function headlines_callback2(transport, feed_cur_page) {
  49         try {
  50
  51                 if (!transport.responseText && db) {
  52                         offlineConfirmModeChange();
  53                         return;
  54                 }
  55
  56                 loading_set_progress(100);
  57
  58                 debug("headlines_callback2 [page=" + feed_cur_page + "]");
  59
  60                 if (!transport_error_check(transport)) return;
  61
  62                 clean_feed_selections();
  63
  64                 var is_cat = false;
  65                 var feed_id = false;
  66
  67                 if (transport.responseXML) {
  68                         var headlines = transport.responseXML.getElementsByTagName("headlines")[0];
  69                         if (headlines) {
  70                                 is_cat = headlines.getAttribute("is_cat");
  71                                 feed_id = headlines.getAttribute("id");
  72                                 setActiveFeedId(feed_id, is_cat);
  73                         }
  74                 }
  75
  76                 var ll = $('FLL-' + feed_id);
  77
  78                 if (!is_cat) {
  79                         var feedr = $("FEEDR-" + feed_id);
  80                         if (feedr && !feedr.className.match("Selected")) {
  81                                 feedr.className = feedr.className + "Selected";
  82                         }
  83                         if (feedr && ll) feedr.removeChild(ll);
  84                 } else {
  85                         var feedr = $("FCAT-" + feed_id);
  86                         if (feedr && !feedr.className.match("Selected")) {
  87                                 feedr.className = feedr.className + "Selected";
  88                         }
  89
  90                         var fcap = $("FCAP-" + feed_id);
  91                         if (fcap && ll) fcap.removeChild(ll);
  92
  93                 }
  94
  95                 var img = $('FIMG-' + feed_id);
  96
  97                 if (img && !is_cat) {
  98                         img.src = img.alt;
  99                 }
 100
 101                 var f = $("headlines-frame");
 102                 try {
 103                         if (feed_cur_page == 0) {
 104                                 debug("resetting headlines scrollTop");
 105                                 f.scrollTop = 0;
 106                         }
 107                 } catch (e) { };
 108
 109                 if (transport.responseXML) {
 110                         var headlines = transport.responseXML.getElementsByTagName("headlines")[0];
 111                         var headlines_count_obj = transport.responseXML.getElementsByTagName("headlines-count")[0];
 112                         var headlines_unread_obj = transport.responseXML.getElementsByTagName("headlines-unread")[0];
 113                         var disable_cache_obj = transport.responseXML.getElementsByTagName("disable-cache")[0];
 114
 115                         var vgroup_last_feed_obj =  transport.responseXML.getElementsByTagName("vgroup-last-feed")[0];
 116
 117                         var headlines_count = headlines_count_obj.getAttribute("value");
 118                         var headlines_unread = headlines_unread_obj.getAttribute("value");
 119                         var disable_cache = disable_cache_obj.getAttribute("value") != "0";
 120
 121                         vgroup_last_feed = vgroup_last_feed_obj.getAttribute("value");
 122
 123                         if (headlines_count == 0) {
 124                                 _infscroll_disable = 1;
 125                         } else {
 126                                 _infscroll_disable = 0;
 127                         }
 128
 129                         var counters = transport.responseXML.getElementsByTagName("counters")[0];
 130                         var articles = transport.responseXML.getElementsByTagName("article");
 131                         var runtime_info = transport.responseXML.getElementsByTagName("runtime-info");
 132
 133                         if (feed_cur_page == 0) {
 134                                 if (headlines) {
 135                                         f.innerHTML = headlines.firstChild.nodeValue;
 136
 137                                         var cache_prefix = "";
 138
 139                                         if (is_cat) {
 140                                                 cache_prefix = "C:";
 141                                         } else {
 142                                                 cache_prefix = "F:";
 143                                         }
 144
 145                                         cache_invalidate(cache_prefix + feed_id);
 146
 147                                         if (!disable_cache) {
 148                                                 cache_inject(cache_prefix + feed_id,
 149                                                         headlines.firstChild.nodeValue, headlines_unread);
 150                                         }
 151
 152                                 } else {
 153                                         debug("headlines_callback: returned no data");
 154                                 f.innerHTML = "<div class='whiteBox'>" + __('Could not update headlines (missing XML data)') + "</div>";
 155
 156                                 }
 157                         } else {
 158                                 if (headlines) {
 159                                         if (headlines_count > 0) {
 160                                                 debug("adding some more headlines...");
 161
 162                                                 var c = $("headlinesList");
 163
 164                                                 if (!c) {
 165                                                         c = $("headlinesInnerContainer");
 166                                                 }
 167
 168                                                 var ids = getSelectedArticleIds2();
 169
 170                                                 c.innerHTML = c.innerHTML + headlines.firstChild.nodeValue;
 171
 172                                                 debug("restore selected ids: " + ids);
 173
 174                                                 for (var i = 0; i < ids.length; i++) {
 175                                                         markHeadline(ids[i]);
 176                                                 }
 177
 178                                         } else {
 179                                                 debug("no new headlines received");
 180                                         }
 181                                 } else {
 182                                         debug("headlines_callback: returned no data");
 183                                         notify_error("Error while trying to load more headlines");
 184                                 }
 185
 186                         }
 187
 188                         if (articles) {
 189                                 for (var i = 0; i < articles.length; i++) {
 190                                         var a_id = articles[i].getAttribute("id");
 191                                         debug("found id: " + a_id);
 192                                         cache_inject(a_id, articles[i].firstChild.nodeValue);
 193                                 }
 194                         } else {
 195                                 debug("no cached articles received");
 196                         }
 197
 198                         if (counters) {
 199                                 debug("parsing piggybacked counters: " + counters);
 200                                 parse_counters(counters, false);
 201                         } else {
 202                                 debug("counters container not found in reply, requesting...");
 203                                 request_counters();
 204                         }
 205
 206                         if (runtime_info) {
 207                                 debug("parsing runtime info: " + runtime_info[0]);
 208                                 parse_runtime_info(runtime_info[0]);
 209                         } else {
 210                                 debug("counters container not found in reply");
 211                         }
 212
 213                 } else {
 214                         debug("headlines_callback: returned no XML object");
 215                         f.innerHTML = "<div class='whiteBox'>" + __('Could not update headlines (missing XML object)') + "</div>";
 216                 }
 217
 218                 if (typeof correctPNG != 'undefined') {
 219                         correctPNG();
 220                 }
 221
 222                 if (_cdm_wd_timeout) window.clearTimeout(_cdm_wd_timeout);
 223
 224                 if (!$("headlinesList") &&
 225                                 getActiveFeedId() != -3 &&
 226                                 getInitParam("cdm_auto_catchup") == 1) {
 227                         debug("starting CDM watchdog");
 228                         _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 5000);
 229                         _cdm_wd_vishist = new Array();
 230                 } else {
 231                         debug("not in CDM mode or watchdog disabled");
 232                 }
 233
 234                 _feed_cur_page = feed_cur_page;
 235                 _infscroll_request_sent = 0;
 236
 237                 notify("");
 238
 239                 remove_splash();
 240
 241         } catch (e) {
 242                 exception_error("headlines_callback2", e, transport);
 243         }
 244 }
 245
 246 function render_article(article) {
 247         try {
 248                 var f = $("content-frame");
 249                 try {
 250                         f.scrollTop = 0;
 251                 } catch (e) { };
 252
 253                 var fi = $("content-insert");
 254
 255                 try {
 256                         fi.scrollTop = 0;
 257                 } catch (e) { };
 258
 259                 fi.innerHTML = article;
 260
 261 //              article.evalScripts();
 262
 263         } catch (e) {
 264                 exception_error("render_article", e);
 265         }
 266 }
 267
 268 function showArticleInHeadlines(id) {
 269
 270         try {
 271
 272                 cleanSelected("headlinesList");
 273
 274                 var crow = $("RROW-" + id);
 275
 276                 if (!crow) return;
 277
 278                 var article_is_unread = crow.className.match("Unread");
 279
 280                 crow.className = crow.className.replace("Unread", "");
 281
 282                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
 283
 284                 var upd_img_pic = $("FUPDPIC-" + id);
 285
 286                 var cache_prefix = "";
 287
 288                 if (activeFeedIsCat()) {
 289                         cache_prefix = "C:";
 290                 } else {
 291                         cache_prefix = "F:";
 292                 }
 293
 294                 var view_mode = false;
 295
 296                 try {
 297                         view_mode = document.forms['main_toolbar_form'].view_mode;
 298                         view_mode = view_mode[view_mode.selectedIndex].value;
 299                 } catch (e) {
 300                         //
 301                 }
 302
 303                 if (upd_img_pic && (upd_img_pic.src.match("updated.png") ||
 304                                         upd_img_pic.src.match("fresh_sign.png"))) {
 305
 306                         upd_img_pic.src = "images/blank_icon.gif";
 307
 308                         cache_invalidate(cache_prefix + getActiveFeedId());
 309
 310                         cache_inject(cache_prefix + getActiveFeedId(),
 311                                 $("headlines-frame").innerHTML,
 312                                 get_feed_unread(getActiveFeedId()));
 313
 314                 } else if (article_is_unread && view_mode == "all_articles") {
 315
 316                         cache_invalidate(cache_prefix + getActiveFeedId());
 317
 318                         cache_inject(cache_prefix + getActiveFeedId(),
 319                                 $("headlines-frame").innerHTML,
 320                                 get_feed_unread(getActiveFeedId())-1);
 321
 322                 } else if (article_is_unread) {
 323                         cache_invalidate(cache_prefix + getActiveFeedId());
 324                 }
 325
 326                 markHeadline(id);
 327
 328         } catch (e) {
 329                 exception_error("showArticleInHeadlines", e);
 330         }
 331 }
 332
 333 function article_callback2(transport, id) {
 334         try {
 335                 debug("article_callback2 " + id);
 336
 337                 if (!transport.responseText && db) {
 338                         offlineConfirmModeChange();
 339                         return;
 340                 }
 341
 342                 if (transport.responseXML) {
 343
 344                         if (!transport_error_check(transport)) return;
 345
 346 /*                      var ll = $('LL-' + id);
 347                         var content = $('HLC-' + id);
 348
 349                         if (ll && content) content.removeChild(ll); */
 350
 351                         var upic = $('FUPDPIC-' + id);
 352
 353                         if (upic) {
 354                                 upic.src = 'images/blank_icon.gif';
 355                         }
 356
 357                         if (id != last_requested_article) {
 358                                 debug("requested article id is out of sequence, aborting");
 359                                 return;
 360                         }
 361
 362                         active_post_id = id;
 363
 364                         debug("looking for articles to cache...");
 365
 366                         var articles = transport.responseXML.getElementsByTagName("article");
 367
 368                         for (var i = 0; i < articles.length; i++) {
 369                                 var a_id = articles[i].getAttribute("id");
 370
 371                                 debug("found id: " + a_id);
 372
 373                                 if (a_id == active_post_id) {
 374                                         debug("active article, rendering...");
 375                                         render_article(articles[i].firstChild.nodeValue);
 376                                 }
 377
 378                                 cache_inject(a_id, articles[i].firstChild.nodeValue);
 379                         }
 380
 381
 382                         showArticleInHeadlines(id);
 383
 384                         if (db) {
 385                                 db.execute("UPDATE articles SET unread = 0 WHERE id = ?", [id]);
 386                         }
 387
 388                         var reply = transport.responseXML.firstChild.firstChild;
 389
 390                 } else {
 391                         debug("article_callback: returned no XML object");
 392                         //var f = $("content-frame");
 393                         //f.innerHTML = "<div class='whiteBox'>" + __('Could not display article (missing XML object)') + "</div>";
 394                 }
 395
 396                 var date = new Date();
 397                 last_article_view = date.getTime() / 1000;
 398
 399                 if (typeof correctPNG != 'undefined') {
 400                         correctPNG();
 401                 }
 402
 403                 if (_reload_feedlist_after_view) {
 404                         setTimeout('updateFeedList(false, false)', 50);
 405                         _reload_feedlist_after_view = false;
 406                 } else {
 407                         if (transport.responseXML) {
 408                                 var counters = transport.responseXML.getElementsByTagName("counters")[0];
 409
 410                                 if (counters) {
 411                                         debug("parsing piggybacked counters: " + counters);
 412                                         parse_counters(counters, false);
 413                                 } else {
 414                                         debug("counters container not found in reply, requesting...");
 415                                         request_counters();
 416                                 }
 417                         }
 418                 }
 419
 420                 notify("");
 421         } catch (e) {
 422                 exception_error("article_callback2", e, transport);
 423         }
 424 }
 425
 426 function view(id) {
 427         try {
 428                 debug("loading article: " + id);
 429
 430                 if (offline_mode) return view_offline(id);
 431
 432                 var cached_article = cache_find(id);
 433
 434                 debug("cache check result: " + (cached_article != false));
 435
 436                 enableHotkeys();
 437                 hideAuxDlg();
 438
 439                 var query = "?op=view&id=" + param_escape(id);
 440
 441                 var neighbor_ids = getRelativePostIds(active_post_id);
 442
 443                 /* only request uncached articles */
 444
 445                 var cids_to_request = Array();
 446
 447                 for (var i = 0; i < neighbor_ids.length; i++) {
 448                         if (!cache_check(neighbor_ids[i])) {
 449                                 cids_to_request.push(neighbor_ids[i]);
 450                         }
 451                 }
 452
 453                 debug("additional ids: " + cids_to_request.toString());
 454
 455                 /* additional info for piggyback counters */
 456
 457                 if (tagsAreDisplayed()) {
 458                         query = query + "&omode=lt";
 459                 } else {
 460                         query = query + "&omode=flc";
 461                 }
 462
 463                 query = query + "&cids=" + cids_to_request.toString();
 464
 465                 var crow = $("RROW-" + id);
 466                 var article_is_unread = crow.className.match("Unread");
 467
 468                 if (!async_counters_work) {
 469                         query = query + "&csync=true";
 470                 }
 471
 472                 showArticleInHeadlines(id);
 473
 474                 if (!cached_article) {
 475
 476                         var upic = $('FUPDPIC-' + id);
 477
 478                         if (upic) {
 479                                 upic.src = getInitParam("sign_progress");
 480                         }
 481
 482                 } else if (cached_article && article_is_unread) {
 483
 484                         query = query + "&mode=prefetch";
 485
 486                         render_article(cached_article);
 487
 488                 } else if (cached_article) {
 489
 490                         query = query + "&mode=prefetch_old";
 491                         render_article(cached_article);
 492
 493                 }
 494
 495                 cache_expire();
 496
 497                 last_requested_article = id;
 498
 499                 new Ajax.Request("backend.php", {
 500                         parameters: query,
 501                         onComplete: function(transport) {
 502                                 article_callback2(transport, id);
 503                         } });
 504
 505                 return false;
 506
 507         } catch (e) {
 508                 exception_error("view", e);
 509         }
 510 }
 511
 512 function tMark(id) {
 513         return toggleMark(id);
 514 }
 515
 516 function tPub(id) {
 517         return togglePub(id);
 518 }
 519
 520 function tMark_afh_off(effect) {
 521         try {
 522                 var elem = effect.effects[0].element;
 523
 524                 debug("tMark_afh_off : " + elem.id);
 525
 526                 if (elem) {
 527                         elem.src = elem.src.replace("mark_set", "mark_unset");
 528                         elem.alt = __("Star article");
 529                         Element.show(elem);
 530                 }
 531
 532         } catch (e) {
 533                 exception_error("tMark_afh_off", e);
 534         }
 535 }
 536
 537 function tPub_afh_off(effect) {
 538         try {
 539                 var elem = effect.effects[0].element;
 540
 541                 debug("tPub_afh_off : " + elem.id);
 542
 543                 if (elem) {
 544                         elem.src = elem.src.replace("pub_set", "pub_unset");
 545                         elem.alt = __("Publish article");
 546                         Element.show(elem);
 547                 }
 548
 549         } catch (e) {
 550                 exception_error("tPub_afh_off", e);
 551         }
 552 }
 553
 554 function toggleMark(id, client_only, no_effects) {
 555
 556         try {
 557
 558                 var query = "?op=rpc&id=" + id + "&subop=mark";
 559
 560                 query = query + "&afid=" + getActiveFeedId();
 561
 562                 if (tagsAreDisplayed()) {
 563                         query = query + "&omode=tl";
 564                 } else {
 565                         query = query + "&omode=flc";
 566                 }
 567
 568                 var mark_img = $("FMPIC-" + id);
 569
 570                 if (!mark_img) return;
 571
 572                 var vfeedu = $("FEEDU--1");
 573                 var crow = $("RROW-" + id);
 574
 575                 if (mark_img.src.match("mark_unset")) {
 576                         mark_img.src = mark_img.src.replace("mark_unset", "mark_set");
 577                         mark_img.alt = __("Unstar article");
 578                         query = query + "&mark=1";
 579
 580                         if (db) {
 581                                 db.execute("UPDATE articles SET marked = 1 WHERE id = ?", [id]);
 582                         }
 583
 584                 } else {
 585                         mark_img.alt = __("Please wait...");
 586                         query = query + "&mark=0";
 587
 588                         if ($("headlinesList") && !no_effects) {
 589                                 Effect.Puff(mark_img, {duration : 0.25, afterFinish: tMark_afh_off});
 590                         } else {
 591                                 mark_img.src = mark_img.src.replace("mark_set", "mark_unset");
 592                                 mark_img.alt = __("Star article");
 593                         }
 594
 595                         if (db) {
 596                                 db.execute("UPDATE articles SET marked = 0 WHERE id = ?", [id]);
 597                         }
 598
 599                 }
 600
 601                 if (!no_effects) update_local_feedlist_counters();
 602
 603                 if (!client_only) {
 604                         debug(query);
 605
 606                         new Ajax.Request("backend.php", {
 607                                 parameters: query,
 608                                 onComplete: function(transport) {
 609                                         all_counters_callback2(transport);
 610                                 } });
 611
 612                 }
 613
 614         } catch (e) {
 615                 exception_error("toggleMark", e);
 616         }
 617 }
 618
 619 function togglePub(id, client_only, no_effects, note) {
 620
 621         try {
 622
 623                 var query = "?op=rpc&id=" + id + "&subop=publ";
 624
 625                 query = query + "&afid=" + getActiveFeedId();
 626
 627                 if (note != undefined) {
 628                         query = query + "&note=" + param_escape(note);
 629                 } else {
 630                         query = query + "&note=undefined";
 631                 }
 632
 633                 if (tagsAreDisplayed()) {
 634                         query = query + "&omode=tl";
 635                 } else {
 636                         query = query + "&omode=flc";
 637                 }
 638
 639                 var mark_img = $("FPPIC-" + id);
 640
 641                 if (!mark_img) return;
 642
 643                 var vfeedu = $("FEEDU--2");
 644                 var crow = $("RROW-" + id);
 645
 646                 if (mark_img.src.match("pub_unset") || note != undefined) {
 647                         mark_img.src = mark_img.src.replace("pub_unset", "pub_set");
 648                         mark_img.alt = __("Unpublish article");
 649                         query = query + "&pub=1";
 650
 651                 } else {
 652                         mark_img.alt = __("Please wait...");
 653                         query = query + "&pub=0";
 654
 655                         if ($("headlinesList") && !no_effects) {
 656                                 Effect.Puff(mark_img, {duration : 0.25, afterFinish: tPub_afh_off});
 657                         } else {
 658                                 mark_img.src = mark_img.src.replace("pub_set", "pub_unset");
 659                                 mark_img.alt = __("Publish article");
 660                         }
 661                 }
 662
 663                 if (!client_only) {
 664                         new Ajax.Request("backend.php", {
 665                                 parameters: query,
 666                                 onComplete: function(transport) {
 667                                         all_counters_callback2(transport);
 668
 669                                         var note = transport.responseXML.getElementsByTagName("note")[0];
 670
 671                                         if (note) {
 672                                                 var note_id = note.getAttribute("id");
 673                                                 var note_size = note.getAttribute("size");
 674                                                 var note_content = note.firstChild.nodeValue;
 675
 676                                                 var container = $('POSTNOTE-' + note_id);
 677
 678                                                 cache_invalidate(note_id);
 679
 680                                                 if (container) {
 681                                                         if (note_size == "0") {
 682                                                                 Element.hide(container);
 683                                                         } else {
 684                                                                 container.innerHTML = note_content;
 685                                                                 Element.show(container);
 686                                                         }
 687                                                 }
 688                                         }
 689
 690                                 } });
 691                 }
 692
 693         } catch (e) {
 694                 exception_error("togglePub", e);
 695         }
 696 }
 697
 698 function correctHeadlinesOffset(id) {
 699
 700         try {
 701
 702                 var hlist = $("headlinesList");
 703                 var container = $("headlinesInnerContainer");
 704                 var row = $("RROW-" + id);
 705
 706                 var viewport = container.offsetHeight;
 707
 708                 var rel_offset_top = row.offsetTop - container.scrollTop;
 709                 var rel_offset_bottom = row.offsetTop + row.offsetHeight - container.scrollTop;
 710
 711                 debug("Rtop: " + rel_offset_top + " Rbtm: " + rel_offset_bottom);
 712                 debug("Vport: " + viewport);
 713
 714                 if (rel_offset_top <= 0 || rel_offset_top > viewport) {
 715                         container.scrollTop = row.offsetTop;
 716                 } else if (rel_offset_bottom > viewport) {
 717
 718                         /* doesn't properly work with Opera in some cases because
 719                                 Opera fucks up element scrolling */
 720
 721                         container.scrollTop = row.offsetTop + row.offsetHeight - viewport;
 722                 }
 723
 724         } catch (e) {
 725                 exception_error("correctHeadlinesOffset", e);
 726         }
 727
 728 }
 729
 730 function moveToPost(mode) {
 731
 732         try {
 733
 734                 var rows;
 735
 736                 if (isCdmMode()) {
 737                         rows = cdmGetVisibleArticles();
 738                 } else {
 739                         rows = getVisibleHeadlineIds();
 740                 }
 741
 742                 var prev_id = false;
 743                 var next_id = false;
 744
 745                 if (!$('RROW-' + active_post_id)) {
 746                         active_post_id = false;
 747                 }
 748
 749                 if (active_post_id == false) {
 750                         next_id = getFirstVisibleHeadlineId();
 751                         prev_id = getLastVisibleHeadlineId();
 752                 } else {
 753                         for (var i = 0; i < rows.length; i++) {
 754                                 if (rows[i] == active_post_id) {
 755                                         prev_id = rows[i-1];
 756                                         next_id = rows[i+1];
 757                                 }
 758                         }
 759                 }
 760
 761                 if (mode == "next") {
 762                         if (next_id) {
 763                                 if (isCdmMode()) {
 764
 765                                         if (!cdmArticleIsActuallyVisible(next_id)) {
 766                                                 cdmScrollToArticleId(next_id);
 767                                         }
 768                                         cdmSelectArticles("none");
 769                                         toggleUnread(next_id, 0, true);
 770                                         toggleSelected(next_id);
 771
 772                                 } else {
 773                                         correctHeadlinesOffset(next_id);
 774                                         view(next_id, getActiveFeedId());
 775                                 }
 776                         }
 777                 }
 778
 779                 if (mode == "prev") {
 780                         if (prev_id) {
 781                                 if (isCdmMode()) {
 782                                         cdmScrollToArticleId(prev_id);
 783                                         cdmSelectArticles("none");
 784                                         toggleUnread(prev_id, 0, true);
 785                                         toggleSelected(prev_id);
 786                                 } else {
 787                                         correctHeadlinesOffset(prev_id);
 788                                         view(prev_id, getActiveFeedId());
 789                                 }
 790                         }
 791                 }
 792
 793         } catch (e) {
 794                 exception_error("moveToPost", e);
 795         }
 796 }
 797
 798 function toggleSelected(id) {
 799         try {
 800
 801                 var cb = $("RCHK-" + id);
 802
 803                 var row = $("RROW-" + id);
 804                 if (row) {
 805                         var nc = row.className;
 806
 807                         if (!nc.match("Selected")) {
 808                                 nc = nc + "Selected";
 809                                 if (cb) {
 810                                         cb.checked = true;
 811                                 }
 812
 813                                 // In CDM basically last selected article == active article
 814                                 if (isCdmMode()) active_post_id = id;
 815                         } else {
 816                                 nc = nc.replace("Selected", "");
 817                                 if (cb) {
 818                                         cb.checked = false;
 819                                 }
 820
 821                         }
 822
 823                         row.className = nc;
 824                 }
 825         } catch (e) {
 826                 exception_error("toggleSelected", e);
 827         }
 828 }
 829
 830 function toggleUnread_afh(effect) {
 831         try {
 832
 833                 var elem = effect.element;
 834                 elem.style.backgroundColor = "";
 835
 836         } catch (e) {
 837                 exception_error("toggleUnread_afh", e);
 838         }
 839 }
 840
 841 function toggleUnread(id, cmode, effect) {
 842         try {
 843
 844                 var row = $("RROW-" + id);
 845                 if (row) {
 846                         var nc = row.className;
 847                         var is_selected = row.className.match("Selected");
 848                         nc = nc.replace("Unread", "");
 849                         nc = nc.replace("Selected", "");
 850
 851                         // since we are removing selection from the object, uncheck
 852                         // corresponding checkbox
 853
 854                         var cb = $("RCHK-" + id);
 855                         if (cb) {
 856                                 cb.checked = false;
 857                         }
 858
 859                         // NOTE: I'm not sure that resetting selection here is a feature -fox
 860
 861                         if (cmode == undefined || cmode == 2) {
 862                                 if (row.className.match("Unread")) {
 863                                         row.className = nc;
 864
 865                                         if (effect) {
 866                                                 new Effect.Highlight(row, {duration: 1, startcolor: "#fff7d5",
 867                                                         afterFinish: toggleUnread_afh,
 868                                                         queue: { position:'end', scope: 'TMRQ-' + id, limit: 1 } } );
 869                                         }
 870
 871                                 } else {
 872                                         row.className = nc + "Unread";
 873                                 }
 874
 875                                 if (db) {
 876                                         db.execute("UPDATE articles SET unread = not unread "+
 877                                                 "WHERE id = ?", [id]);
 878                                 }
 879
 880                         } else if (cmode == 0) {
 881                                 row.className = nc;
 882
 883                                 if (effect) {
 884                                         new Effect.Highlight(row, {duration: 1, startcolor: "#fff7d5",
 885                                                 afterFinish: toggleUnread_afh,
 886                                                 queue: { position:'end', scope: 'TMRQ-' + id, limit: 1 } } );
 887                                 }
 888
 889                                 if (db) {
 890                                         db.execute("UPDATE articles SET unread = 0 "+
 891                                                 "WHERE id = ?", [id]);
 892                                 }
 893
 894                         } else if (cmode == 1) {
 895                                 row.className = nc + "Unread";
 896
 897                                 if (db) {
 898                                         db.execute("UPDATE articles SET unread = 1 "+
 899                                                 "WHERE id = ?", [id]);
 900                                 }
 901
 902                         }
 903
 904                         update_local_feedlist_counters();
 905
 906                         // Disable unmarking as selected for the time being (16.05.08) -fox
 907                         if (is_selected) row.className = row.className + "Selected";
 908
 909                         if (cmode == undefined) cmode = 2;
 910
 911                         var query = "?op=rpc&subop=catchupSelected" +
 912                                 "&cmode=" + param_escape(cmode) + "&ids=" + param_escape(id);
 913
 914 //                      notify_progress("Loading, please wait...");
 915
 916                         new Ajax.Request("backend.php", {
 917                                 parameters: query,
 918                                 onComplete: function(transport) {
 919                                         all_counters_callback2(transport);
 920                                 } });
 921
 922                 }
 923
 924         } catch (e) {
 925                 exception_error("toggleUnread", e);
 926         }
 927 }
 928
 929 function selectionRemoveLabel(id) {
 930         try {
 931
 932                 var ids = getSelectedArticleIds2();
 933
 934                 if (ids.length == 0) {
 935                         alert(__("No articles are selected."));
 936                         return;
 937                 }
 938
 939 //              var ok = confirm(__("Remove selected articles from label?"));
 940
 941 //              if (ok) {
 942
 943                         var query = "?op=rpc&subop=removeFromLabel&ids=" +
 944                                 param_escape(ids.toString()) + "&lid=" + param_escape(id);
 945
 946 //                      notify_progress("Loading, please wait...");
 947
 948                         cache_invalidate("F:" + (-11 - id));
 949
 950                         new Ajax.Request("backend.php", {
 951                                 parameters: query,
 952                                 onComplete: function(transport) {
 953                                         show_labels_in_headlines(transport);
 954                                         all_counters_callback2(transport);
 955                                 } });
 956
 957 //              }
 958
 959         } catch (e) {
 960                 exception_error("selectionAssignLabel", e);
 961
 962         }
 963 }
 964
 965 function selectionAssignLabel(id) {
 966         try {
 967
 968                 var ids = getSelectedArticleIds2();
 969
 970                 if (ids.length == 0) {
 971                         alert(__("No articles are selected."));
 972                         return;
 973                 }
 974
 975 //              var ok = confirm(__("Assign selected articles to label?"));
 976
 977 //              if (ok) {
 978
 979                         cache_invalidate("F:" + (-11 - id));
 980
 981                         var query = "?op=rpc&subop=assignToLabel&ids=" +
 982                                 param_escape(ids.toString()) + "&lid=" + param_escape(id);
 983
 984 //                      notify_progress("Loading, please wait...");
 985
 986                         new Ajax.Request("backend.php", {
 987                                 parameters: query,
 988                                 onComplete: function(transport) {
 989                                         show_labels_in_headlines(transport);
 990                                         all_counters_callback2(transport);
 991                                 } });
 992
 993 //              }
 994
 995         } catch (e) {
 996                 exception_error("selectionAssignLabel", e);
 997
 998         }
 999 }
1000
1001 function selectionToggleUnread(cdm_mode, set_state, callback_func, no_error) {
1002         try {
1003                 var rows;
1004
1005                 if (cdm_mode) {
1006                         rows = cdmGetSelectedArticles();
1007                 } else {
1008                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1009                 }
1010
1011                 if (rows.length == 0 && !no_error) {
1012                         alert(__("No articles are selected."));
1013                         return;
1014                 }
1015
1016                 for (i = 0; i < rows.length; i++) {
1017                         var row = $("RROW-" + rows[i]);
1018                         if (row) {
1019                                 var nc = row.className;
1020                                 nc = nc.replace("Unread", "");
1021                                 nc = nc.replace("Selected", "");
1022
1023                                 if (set_state == undefined) {
1024                                         if (row.className.match("Unread")) {
1025                                                 row.className = nc + "Selected";
1026                                         } else {
1027                                                 row.className = nc + "UnreadSelected";
1028                                         }
1029                                         if (db) {
1030                                                 db.execute("UPDATE articles SET unread = NOT unread WHERE id = ?",
1031                                                         [rows[i]]);
1032                                         }
1033                                 }
1034
1035                                 if (set_state == false) {
1036                                         row.className = nc + "Selected";
1037                                         if (db) {
1038                                                 db.execute("UPDATE articles SET unread = 0 WHERE id = ?",
1039                                                         [rows[i]]);
1040                                         }
1041                                 }
1042
1043                                 if (set_state == true) {
1044                                         row.className = nc + "UnreadSelected";
1045                                         if (db) {
1046                                                 db.execute("UPDATE articles SET unread = 1 WHERE id = ?",
1047                                                         [rows[i]]);
1048                                         }
1049                                 }
1050                         }
1051                 }
1052
1053                 if (rows.length > 0) {
1054
1055                         update_local_feedlist_counters();
1056
1057                         var cmode = "";
1058
1059                         if (set_state == undefined) {
1060                                 cmode = "2";
1061                         } else if (set_state == true) {
1062                                 cmode = "1";
1063                         } else if (set_state == false) {
1064                                 cmode = "0";
1065                         }
1066
1067                         var query = "?op=rpc&subop=catchupSelected" +
1068                                 "&cmode=" + cmode + "&ids=" + param_escape(rows.toString());
1069
1070                         notify_progress("Loading, please wait...");
1071
1072                         new Ajax.Request("backend.php", {
1073                                 parameters: query,
1074                                 onComplete: function(transport) {
1075                                         catchup_callback2(transport, callback_func);
1076                                 } });
1077
1078                 }
1079
1080         } catch (e) {
1081                 exception_error("selectionToggleUnread", e);
1082         }
1083 }
1084
1085 function selectionToggleMarked(cdm_mode) {
1086         try {
1087
1088                 var rows;
1089
1090                 if (cdm_mode) {
1091                         rows = cdmGetSelectedArticles();
1092                 } else {
1093                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1094                 }
1095
1096                 if (rows.length == 0) {
1097                         alert(__("No articles are selected."));
1098                         return;
1099                 }
1100
1101                 for (i = 0; i < rows.length; i++) {
1102                         toggleMark(rows[i], true, true);
1103                 }
1104
1105                 update_local_feedlist_counters();
1106
1107                 if (rows.length > 0) {
1108
1109                         var query = "?op=rpc&subop=markSelected&ids=" +
1110                                 param_escape(rows.toString()) + "&cmode=2";
1111
1112                         query = query + "&afid=" + getActiveFeedId();
1113
1114                         query = query + "&omode=lc";
1115
1116                         new Ajax.Request("backend.php", {
1117                                 parameters: query,
1118                                 onComplete: function(transport) {
1119                                         all_counters_callback2(transport);
1120                                 } });
1121
1122                 }
1123
1124         } catch (e) {
1125                 exception_error("selectionToggleMarked", e);
1126         }
1127 }
1128
1129 function selectionTogglePublished(cdm_mode) {
1130         try {
1131
1132                 var rows;
1133
1134                 if (cdm_mode) {
1135                         rows = cdmGetSelectedArticles();
1136                 } else {
1137                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1138                 }
1139
1140                 if (rows.length == 0) {
1141                         alert(__("No articles are selected."));
1142                         return;
1143                 }
1144
1145                 for (i = 0; i < rows.length; i++) {
1146                         togglePub(rows[i], true, true);
1147                 }
1148
1149                 if (rows.length > 0) {
1150
1151                         var query = "?op=rpc&subop=publishSelected&ids=" +
1152                                 param_escape(rows.toString()) + "&cmode=2";
1153
1154                         query = query + "&afid=" + getActiveFeedId();
1155
1156                         query = query + "&omode=lc";
1157
1158                         new Ajax.Request("backend.php", {
1159                                 parameters: query,
1160                                 onComplete: function(transport) {
1161                                         all_counters_callback2(transport);
1162                                 } });
1163
1164                 }
1165
1166         } catch (e) {
1167                 exception_error("selectionToggleMarked", e);
1168         }
1169 }
1170
1171 function cdmGetSelectedArticles() {
1172         var sel_articles = new Array();
1173         var container = $("headlinesInnerContainer");
1174
1175         for (i = 0; i < container.childNodes.length; i++) {
1176                 var child = container.childNodes[i];
1177
1178                 if (child.id && child.id.match("RROW-") && child.className.match("Selected")) {
1179                         var c_id = child.id.replace("RROW-", "");
1180                         sel_articles.push(c_id);
1181                 }
1182         }
1183
1184         return sel_articles;
1185 }
1186
1187 function cdmGetVisibleArticles() {
1188         var sel_articles = new Array();
1189         var container = $("headlinesInnerContainer");
1190
1191         if (!container) return sel_articles;
1192
1193         for (i = 0; i < container.childNodes.length; i++) {
1194                 var child = container.childNodes[i];
1195
1196                 if (child.id && child.id.match("RROW-")) {
1197                         var c_id = child.id.replace("RROW-", "");
1198                         sel_articles.push(c_id);
1199                 }
1200         }
1201
1202         return sel_articles;
1203 }
1204
1205 function cdmGetUnreadArticles() {
1206         var sel_articles = new Array();
1207         var container = $("headlinesInnerContainer");
1208
1209         for (i = 0; i < container.childNodes.length; i++) {
1210                 var child = container.childNodes[i];
1211
1212                 if (child.id && child.id.match("RROW-") && child.className.match("Unread")) {
1213                         var c_id = child.id.replace("RROW-", "");
1214                         sel_articles.push(c_id);
1215                 }
1216         }
1217
1218         return sel_articles;
1219 }
1220
1221
1222 // mode = all,none,unread
1223 function cdmSelectArticles(mode) {
1224         var container = $("headlinesInnerContainer");
1225
1226         for (i = 0; i < container.childNodes.length; i++) {
1227                 var child = container.childNodes[i];
1228
1229                 if (child.id && child.id.match("RROW-")) {
1230                         var aid = child.id.replace("RROW-", "");
1231
1232                         var cb = $("RCHK-" + aid);
1233
1234                         if (mode == "all") {
1235                                 if (!child.className.match("Selected")) {
1236                                         child.className = child.className + "Selected";
1237                                         cb.checked = true;
1238                                 }
1239                         } else if (mode == "unread") {
1240                                 if (child.className.match("Unread") && !child.className.match("Selected")) {
1241                                         child.className = child.className + "Selected";
1242                                         cb.checked = true;
1243                                 }
1244                         } else {
1245                                 child.className = child.className.replace("Selected", "");
1246                                 cb.checked = false;
1247                         }
1248                 }
1249         }
1250 }
1251
1252 function catchupPage() {
1253
1254         var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
1255
1256         var str = __("Mark all visible articles in %s as read?");
1257
1258         str = str.replace("%s", fn);
1259
1260         if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1261                 return;
1262         }
1263
1264         if ($("headlinesList")) {
1265                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, 'Unread', true);
1266                 selectionToggleUnread(false, false, 'viewCurrentFeed()', true);
1267                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
1268         } else {
1269                 cdmSelectArticles('all');
1270                 selectionToggleUnread(true, false, 'viewCurrentFeed()', true)
1271                 cdmSelectArticles('none');
1272         }
1273 }
1274
1275 function deleteSelection() {
1276
1277         try {
1278
1279                 var rows;
1280
1281                 if ($("headlinesList")) {
1282                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1283                 } else {
1284                         rows = cdmGetSelectedArticles();
1285                 }
1286
1287                 if (rows.length == 0) {
1288                         alert(__("No articles are selected."));
1289                         return;
1290                 }
1291
1292
1293                 var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
1294                 var str;
1295                 var op;
1296
1297                 if (getActiveFeedId() != 0) {
1298                         str = __("Delete %d selected articles in %s?");
1299                 } else {
1300                         str = __("Delete %d selected articles?");
1301                 }
1302
1303                 str = str.replace("%d", rows.length);
1304                 str = str.replace("%s", fn);
1305
1306                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1307                         return;
1308                 }
1309
1310                 query = "?op=rpc&subop=delete&ids=" + param_escape(rows);
1311
1312                 debug(query);
1313
1314                 new Ajax.Request("backend.php", {
1315                         parameters: query,
1316                         onComplete: function(transport) {
1317                                         viewCurrentFeed();
1318                                 } });
1319
1320         } catch (e) {
1321                 exception_error("deleteSelection", e);
1322         }
1323 }
1324
1325 function archiveSelection() {
1326
1327         try {
1328
1329                 var rows;
1330
1331                 if ($("headlinesList")) {
1332                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1333                 } else {
1334                         rows = cdmGetSelectedArticles();
1335                 }
1336
1337                 if (rows.length == 0) {
1338                         alert(__("No articles are selected."));
1339                         return;
1340                 }
1341
1342
1343                 var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
1344                 var str;
1345                 var op;
1346
1347                 if (getActiveFeedId() != 0) {
1348                         str = __("Archive %d selected articles in %s?");
1349                         op = "archive";
1350                 } else {
1351                         str = __("Move %d archived articles back?");
1352                         op = "unarchive";
1353                 }
1354
1355                 str = str.replace("%d", rows.length);
1356                 str = str.replace("%s", fn);
1357
1358                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1359                         return;
1360                 }
1361
1362                 query = "?op=rpc&subop="+op+"&ids=" + param_escape(rows);
1363
1364                 debug(query);
1365
1366                 for (var i = 0; i < rows.length; i++) {
1367                         cache_invalidate(rows[i]);
1368                 }
1369
1370                 new Ajax.Request("backend.php", {
1371                         parameters: query,
1372                         onComplete: function(transport) {
1373                                         viewCurrentFeed();
1374                                 } });
1375
1376         } catch (e) {
1377                 exception_error("archiveSelection", e);
1378         }
1379 }
1380
1381 function catchupSelection() {
1382
1383         try {
1384
1385                 var rows;
1386
1387                 if ($("headlinesList")) {
1388                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1389                 } else {
1390                         rows = cdmGetSelectedArticles();
1391                 }
1392
1393                 if (rows.length == 0) {
1394                         alert(__("No articles are selected."));
1395                         return;
1396                 }
1397
1398
1399                 var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
1400
1401                 var str = __("Mark %d selected articles in %s as read?");
1402
1403                 str = str.replace("%d", rows.length);
1404                 str = str.replace("%s", fn);
1405
1406                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1407                         return;
1408                 }
1409
1410                 if ($("headlinesList")) {
1411                         selectionToggleUnread(false, false, 'viewCurrentFeed()', true);
1412                 } else {
1413                         selectionToggleUnread(true, false, 'viewCurrentFeed()', true)
1414                 }
1415
1416         } catch (e) {
1417                 exception_error("catchupSelection", e);
1418         }
1419 }
1420
1421 function editArticleTags(id, feed_id, cdm_enabled) {
1422         displayDlg('editArticleTags', id,
1423                            function () {
1424                                    new Ajax.Autocompleter('tags_str', 'tags_choices',
1425                                            "backend.php?op=rpc&subop=completeTags",
1426                                            { tokens: ',', paramName: "search" });
1427                            });
1428 }
1429
1430 function editTagsSave() {
1431
1432         notify_progress("Saving article tags...");
1433
1434         var form = document.forms["tag_edit_form"];
1435
1436         var query = Form.serialize("tag_edit_form");
1437
1438         query = "?op=rpc&subop=setArticleTags&" + query;
1439
1440         debug(query);
1441
1442         new Ajax.Request("backend.php", {
1443                 parameters: query,
1444                 onComplete: function(transport) {
1445                                 try {
1446                                         debug("tags saved...");
1447
1448                                         closeInfoBox();
1449                                         notify("");
1450
1451                                         if (tagsAreDisplayed()) {
1452                                                 _reload_feedlist_after_view = true;
1453                                         }
1454
1455                                         if (transport.responseXML) {
1456                                                 var tags_str = transport.responseXML.getElementsByTagName("tags-str")[0];
1457
1458                                                 if (tags_str) {
1459                                                         var id = tags_str.getAttribute("id");
1460
1461                                                         if (id) {
1462                                                                 var tags = $("ATSTR-" + id);
1463                                                                 if (tags) {
1464                                                                         tags.innerHTML = tags_str.firstChild.nodeValue;
1465                                                                 }
1466
1467                                                                 cache_invalidate(id);
1468                                                         }
1469                                                 }
1470                                         }
1471
1472                                 } catch (e) {
1473                                         exception_error("editTagsSave", e);
1474                                 }
1475                         } });
1476 }
1477
1478 function editTagsInsert() {
1479         try {
1480
1481                 var form = document.forms["tag_edit_form"];
1482
1483                 var found_tags = form.found_tags;
1484                 var tags_str = form.tags_str;
1485
1486                 var tag = found_tags[found_tags.selectedIndex].value;
1487
1488                 if (tags_str.value.length > 0 &&
1489                                 tags_str.value.lastIndexOf(", ") != tags_str.value.length - 2) {
1490
1491                         tags_str.value = tags_str.value + ", ";
1492                 }
1493
1494                 tags_str.value = tags_str.value + tag + ", ";
1495
1496                 found_tags.selectedIndex = 0;
1497
1498         } catch (e) {
1499                 exception_error("editTagsInsert", e);
1500         }
1501 }
1502
1503 function cdmScrollViewport(where) {
1504         debug("cdmScrollViewport: " + where);
1505
1506         var ctr = $("headlinesInnerContainer");
1507
1508         if (!ctr) return;
1509
1510         if (where == "bottom") {
1511                 ctr.scrollTop = ctr.scrollHeight;
1512         } else {
1513                 ctr.scrollTop = where;
1514         }
1515 }
1516
1517 function cdmArticleIsBelowViewport(id) {
1518         try {
1519                 var ctr = $("headlinesInnerContainer");
1520                 var e = $("RROW-" + id);
1521
1522                 if (!e || !ctr) return;
1523
1524                 // article starts below viewport
1525
1526                 if (ctr.scrollTop < e.offsetTop) {
1527                         return true;
1528                 } else {
1529                         return false;
1530                 }
1531
1532         } catch (e) {
1533                 exception_error("cdmArticleIsVisible", e);
1534         }
1535 }
1536
1537 function cdmArticleIsAboveViewport(id) {
1538         try {
1539                 var ctr = $("headlinesInnerContainer");
1540                 var e = $("RROW-" + id);
1541
1542                 if (!e || !ctr) return;
1543
1544                 // article starts above viewport
1545
1546                 if (ctr.scrollTop > e.offsetTop + e.offsetHeight) {
1547                         return true;
1548                 } else {
1549                         return false;
1550                 }
1551
1552         } catch (e) {
1553                 exception_error("cdmArticleIsVisible", e);
1554         }
1555 }
1556
1557 function cdmScrollToArticleId(id) {
1558         try {
1559                 var ctr = $("headlinesInnerContainer");
1560                 var e = $("RROW-" + id);
1561
1562                 if (!e || !ctr) return;
1563
1564                 ctr.scrollTop = e.offsetTop;
1565
1566         } catch (e) {
1567                 exception_error("cdmScrollToArticleId", e);
1568         }
1569 }
1570
1571 function cdmArticleIsActuallyVisible(id) {
1572         try {
1573                 var ctr = $("headlinesInnerContainer");
1574                 var e = $("RROW-" + id);
1575
1576                 if (!e || !ctr) return;
1577
1578                 // article fits in viewport OR article is longer than viewport and
1579                 // its bottom is visible
1580
1581                 if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <=
1582                                 ctr.scrollTop + ctr.offsetHeight) {
1583
1584                         return true;
1585
1586                 } else if (e.offsetHeight > ctr.offsetHeight &&
1587                                 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1588                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
1589
1590                         return true;
1591
1592                 }
1593
1594                 return false;
1595
1596         } catch (e) {
1597                 exception_error("cdmArticleIsVisible", e);
1598         }
1599 }
1600
1601 function cdmWatchdog() {
1602
1603         try {
1604
1605                 var ctr = $("headlinesInnerContainer");
1606
1607                 if (!ctr) return;
1608
1609                 var ids = new Array();
1610
1611                 var e = ctr.firstChild;
1612
1613                 while (e) {
1614                         if (e.className && e.className == "cdmArticleUnread" && e.id &&
1615                                         e.id.match("RROW-")) {
1616
1617                                 // article fits in viewport OR article is longer than viewport and
1618                                 // its bottom is visible
1619
1620                                 if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <=
1621                                                 ctr.scrollTop + ctr.offsetHeight) {
1622
1623 //                                      debug(e.id + " is visible " + e.offsetTop + "." +
1624 //                                              (e.offsetTop + e.offsetHeight) + " vs " + ctr.scrollTop + "." +
1625 //                                              (ctr.scrollTop + ctr.offsetHeight));
1626
1627                                         ids.push(e.id.replace("RROW-", ""));
1628
1629                                 } else if (e.offsetHeight > ctr.offsetHeight &&
1630                                                 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1631                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
1632
1633                                         ids.push(e.id.replace("RROW-", ""));
1634
1635                                 }
1636
1637                                 // method 2: article bottom is visible and is in upper 1/2 of the viewport
1638
1639 /*                              if (e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1640                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight/2) {
1641
1642                                         ids.push(e.id.replace("RROW-", ""));
1643
1644                                 } */
1645
1646                         }
1647
1648                         e = e.nextSibling;
1649                 }
1650
1651                 debug("cdmWatchdog, ids= " + ids.toString());
1652
1653                 if (ids.length > 0) {
1654
1655                         for (var i = 0; i < ids.length; i++) {
1656                                 var e = $("RROW-" + ids[i]);
1657                                 if (e) {
1658                                         e.className = e.className.replace("Unread", "");
1659                                 }
1660                         }
1661
1662                         var query = "?op=rpc&subop=catchupSelected" +
1663                                 "&cmode=0" + "&ids=" + param_escape(ids.toString());
1664
1665                         new Ajax.Request("backend.php", {
1666                                 parameters: query,
1667                                 onComplete: function(transport) {
1668                                         all_counters_callback2(transport);
1669                                 } });
1670
1671                 }
1672
1673                 _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 4000);
1674
1675         } catch (e) {
1676                 exception_error("cdmWatchdog", e);
1677         }
1678
1679 }
1680
1681
1682 function cache_inject(id, article, param) {
1683         try {
1684                 if (!cache_check_param(id, param)) {
1685                         debug("cache_article: miss: " + id + " [p=" + param + "]");
1686
1687                         if (db) {
1688
1689                            var date = new Date();
1690                       var ts = Math.round(date.getTime() / 1000);
1691
1692                                 db.execute("INSERT INTO cache (id, article, param, added) VALUES (?, ?, ?, ?)",
1693                                         [id, article, param, ts]);
1694                         } else {
1695
1696                                 var cache_obj = new Array();
1697
1698                                 cache_obj["id"] = id;
1699                                 cache_obj["data"] = article;
1700                                 cache_obj["param"] = param;
1701
1702                                 article_cache.push(cache_obj);
1703                         }
1704
1705                 } else {
1706                         debug("cache_article: hit: " + id + " [p=" + param + "]");
1707                 }
1708         } catch (e) {
1709                 exception_error("cache_inject", e);
1710         }
1711 }
1712
1713 function cache_find(id) {
1714
1715         if (db) {
1716                 var rs = db.execute("SELECT article FROM cache WHERE id = ?", [id]);
1717                 var a = false;
1718
1719                 if (rs.isValidRow()) {
1720                         var a = rs.field(0);
1721                 }
1722
1723                 rs.close();
1724
1725                 return a;
1726
1727         } else {
1728                 for (var i = 0; i < article_cache.length; i++) {
1729                         if (article_cache[i]["id"] == id) {
1730                                 return article_cache[i]["data"];
1731                         }
1732                 }
1733         }
1734         return false;
1735 }
1736
1737 function cache_find_param(id, param) {
1738
1739         if (db) {
1740                 var rs = db.execute("SELECT article FROM cache WHERE id = ? AND param = ?",
1741                         [id, param]);
1742                 var a = false;
1743
1744                 if (rs.isValidRow()) {
1745                         a = rs.field(0);
1746                 }
1747
1748                 rs.close();
1749
1750                 return a;
1751
1752         } else {
1753                 for (var i = 0; i < article_cache.length; i++) {
1754                         if (article_cache[i]["id"] == id && article_cache[i]["param"] == param) {
1755                                 return article_cache[i]["data"];
1756                         }
1757                 }
1758         }
1759         return false;
1760 }
1761
1762 function cache_check(id) {
1763
1764         if (db) {
1765                 var rs = db.execute("SELECT COUNT(*) AS c FROM cache WHERE id = ?",
1766                         [id]);
1767                 var a = false;
1768
1769                 if (rs.isValidRow()) {
1770                          a = rs.field(0) != "0";
1771                 }
1772
1773                 rs.close();
1774
1775                 return a;
1776
1777         } else {
1778                 for (var i = 0; i < article_cache.length; i++) {
1779                         if (article_cache[i]["id"] == id) {
1780                                 return true;
1781                         }
1782                 }
1783         }
1784         return false;
1785 }
1786
1787 function cache_check_param(id, param) {
1788
1789         if (db) {
1790                 var rs = db.execute("SELECT COUNT(*) AS c FROM cache WHERE id = ? AND param = ?",
1791                         [id, param]);
1792                 var a = false;
1793
1794                 if (rs.isValidRow()) {
1795                         a = rs.field(0) != "0";
1796                 }
1797
1798                 rs.close();
1799
1800                 return a;
1801
1802         } else {
1803                 for (var i = 0; i < article_cache.length; i++) {
1804                         if (article_cache[i]["id"] == id && article_cache[i]["param"] == param) {
1805                                 return true;
1806                         }
1807                 }
1808         }
1809         return false;
1810 }
1811
1812 function cache_expire() {
1813         if (db) {
1814                 var date = new Date();
1815                 var ts = Math.round(date.getTime() / 1000);
1816
1817                 db.execute("DELETE FROM cache WHERE added < ? - 1800 AND id LIKE 'FEEDLIST'", [ts]);
1818                 db.execute("DELETE FROM cache WHERE added < ? - 600 AND (id LIKE 'F:%' OR id LIKE 'C:%')", [ts]);
1819                 db.execute("DELETE FROM cache WHERE added < ? - 86400", [ts]);
1820
1821
1822         } else {
1823                 while (article_cache.length > 25) {
1824                         article_cache.shift();
1825                 }
1826         }
1827 }
1828
1829 function cache_flush() {
1830         article_cache = new Array();
1831 }
1832
1833 function cache_invalidate(id) {
1834         try {
1835
1836                 if (db) {
1837                         rs = db.execute("DELETE FROM cache WHERE id = ?", [id]);
1838                         return rs.rowsAffected != 0;
1839                 } else {
1840
1841                         var i = 0
1842
1843                         while (i < article_cache.length) {
1844                                 if (article_cache[i]["id"] == id) {
1845                                         debug("cache_invalidate: removed id " + id);
1846                                         article_cache.splice(i, 1);
1847                                         return true;
1848                                 }
1849                                 i++;
1850                         }
1851                 }
1852
1853                 debug("cache_invalidate: id not found: " + id);
1854                 return false;
1855         } catch (e) {
1856                 exception_error("cache_invalidate", e);
1857         }
1858 }
1859
1860 function getActiveArticleId() {
1861         return active_post_id;
1862 }
1863
1864 function cdmClicked(id) {
1865         try {
1866                 var elem = $("RROW-" + id);
1867
1868                 if (elem) {
1869                         var id = elem.id.replace("RROW-", "");
1870                         active_post_id = id;
1871
1872 //                      cdmSelectArticles("none");
1873                         toggleUnread(id, 0, true);
1874 //                      toggleSelected(id);
1875
1876                 }
1877         } catch (e) {
1878                 exception_error("cdmClicked", e);
1879         }
1880 }
1881
1882 function preloadArticleUnderPointer(id) {
1883         try {
1884                 if (getInitParam("bw_limit") == "1") return;
1885
1886                 if (post_under_pointer == id && !cache_check(id)) {
1887
1888                         debug("trying to preload article " + id);
1889
1890                         var neighbor_ids = getRelativePostIds(id, 1);
1891
1892                         /* only request uncached articles */
1893
1894                         var cids_to_request = Array();
1895
1896                         for (var i = 0; i < neighbor_ids.length; i++) {
1897                                 if (!cache_check(neighbor_ids[i])) {
1898                                         cids_to_request.push(neighbor_ids[i]);
1899                                 }
1900                         }
1901                         debug("additional ids: " + cids_to_request.toString());
1902
1903                         cids_to_request.push(id);
1904
1905                         var query = "?op=rpc&subop=getArticles&ids=" +
1906                                 cids_to_request.toString();
1907
1908                         new Ajax.Request("backend.php", {
1909                                 parameters: query,
1910                                 onComplete: function(transport) {
1911                                         var articles = transport.responseXML.getElementsByTagName("article");
1912
1913                                         for (var i = 0; i < articles.length; i++) {
1914                                                 var id = articles[i].getAttribute("id");
1915                                                 if (!cache_check(id)) {
1916                                                         cache_inject(id, articles[i].firstChild.nodeValue);
1917                                                         debug("preloaded article: " + id);
1918                                                 }
1919                                         }
1920                         } });
1921                 }
1922         } catch (e) {
1923                 exception_error("preloadArticleUnderPointer", e);
1924         }
1925 }
1926
1927 function postMouseIn(id) {
1928         try {
1929                 if (post_under_pointer != id) {
1930                         post_under_pointer = id;
1931                         if (!isCdmMode()) {
1932                                 window.setTimeout("preloadArticleUnderPointer(" + id + ")", 250);
1933                         }
1934                 }
1935
1936         } catch (e) {
1937                 exception_error("postMouseIn", e);
1938         }
1939 }
1940
1941 function postMouseOut(id) {
1942         try {
1943                 post_under_pointer = false;
1944         } catch (e) {
1945                 exception_error("postMouseOut", e);
1946         }
1947 }
1948
1949 function headlines_scroll_handler() {
1950         try {
1951
1952                 var e = $("headlinesInnerContainer");
1953
1954                 var toolbar_form = document.forms["main_toolbar_form"];
1955
1956                 debug((e.scrollTop + e.offsetHeight) + " vs " + e.scrollHeight + " dis? " +
1957                         _infscroll_disable);
1958
1959                 if (e.scrollTop + e.offsetHeight > e.scrollHeight - 100) {
1960                         if (!_infscroll_disable) {
1961                                 debug("more cowbell!");
1962                                 viewNextFeedPage();
1963                         }
1964                 }
1965
1966         } catch (e) {
1967                 exception_error("headlines_scroll_handler", e);
1968         }
1969 }
1970
1971 function catchupRelativeToArticle(below) {
1972
1973         try {
1974
1975
1976                 if (!getActiveArticleId()) {
1977                         alert(__("No article is selected."));
1978                         return;
1979                 }
1980
1981                 var visible_ids;
1982
1983                 if ($("headlinesList")) {
1984                         visible_ids = getVisibleHeadlineIds();
1985                 } else {
1986                         visible_ids = cdmGetVisibleArticles();
1987                 }
1988
1989                 var ids_to_mark = new Array();
1990
1991                 if (!below) {
1992                         for (var i = 0; i < visible_ids.length; i++) {
1993                                 if (visible_ids[i] != getActiveArticleId()) {
1994                                         var e = $("RROW-" + visible_ids[i]);
1995
1996                                         if (e && e.className.match("Unread")) {
1997                                                 ids_to_mark.push(visible_ids[i]);
1998                                         }
1999                                 } else {
2000                                         break;
2001                                 }
2002                         }
2003                 } else {
2004                         for (var i = visible_ids.length-1; i >= 0; i--) {
2005                                 if (visible_ids[i] != getActiveArticleId()) {
2006                                         var e = $("RROW-" + visible_ids[i]);
2007
2008                                         if (e && e.className.match("Unread")) {
2009                                                 ids_to_mark.push(visible_ids[i]);
2010                                         }
2011                                 } else {
2012                                         break;
2013                                 }
2014                         }
2015                 }
2016
2017                 if (ids_to_mark.length == 0) {
2018                         alert(__("No articles found to mark"));
2019                 } else {
2020                         var msg = __("Mark %d article(s) as read?").replace("%d", ids_to_mark.length);
2021
2022                         if (confirm(msg)) {
2023
2024                                 for (var i = 0; i < ids_to_mark.length; i++) {
2025                                         var e = $("RROW-" + ids_to_mark[i]);
2026                                         e.className = e.className.replace("Unread", "");
2027                                 }
2028
2029                                 var query = "?op=rpc&subop=catchupSelected" +
2030                                         "&cmode=0" + "&ids=" + param_escape(ids_to_mark.toString());
2031
2032                                 new Ajax.Request("backend.php", {
2033                                         parameters: query,
2034                                         onComplete: function(transport) {
2035                                                 catchup_callback2(transport);
2036                                         } });
2037
2038                         }
2039                 }
2040
2041         } catch (e) {
2042                 exception_error("catchupRelativeToArticle", e);
2043         }
2044 }
2045
2046 function cdmExpandArticle(a_id) {
2047         try {
2048                 var id = 'CICD-' + a_id;
2049
2050                 try {
2051                         Element.hide("CEXC-" + a_id);
2052                 } catch (e) { }
2053
2054                 Effect.Appear(id, {duration : 0.5,
2055                         beforeStart: function(effect) {
2056                                 var h_id = 'CICH-' + a_id;
2057                                 var h_elem = $(h_id);
2058                                 if (h_elem) { h_elem.style.display = "none"; }
2059
2060                                 toggleUnread(a_id, 0);
2061                         }});
2062
2063
2064         } catch (e) {
2065                 exception_error("appearBlockElementF", e);
2066         }
2067
2068 }
2069
2070 function fixHeadlinesOrder(ids) {
2071         try {
2072                 for (var i = 0; i < ids.length; i++) {
2073                         var e = $("RROW-" + ids[i]);
2074
2075                         if (e) {
2076                                 if (i % 2 == 0) {
2077                                         e.className = e.className.replace("even", "odd");
2078                                 } else {
2079                                         e.className = e.className.replace("odd", "even");
2080                                 }
2081                         }
2082                 }
2083         } catch (e) {
2084                 exception_error("fixHeadlinesOrder", e);
2085         }
2086 }
2087
2088 function hideReadHeadlines() {
2089         try {
2090
2091                 var ids = false;
2092                 var vis_ids = new Array();
2093
2094                 if ($("headlinesList")) {
2095                         ids = getVisibleHeadlineIds();
2096                 } else {
2097                         ids = cdmGetVisibleArticles();
2098                 }
2099
2100                 var read_headlines_visible = true;
2101
2102                 for (var i = 0; i < ids.length; i++) {
2103                         var row = $("RROW-" + ids[i]);
2104
2105                         if (row && row.className) {
2106                                 if (read_headlines_visible) {
2107                                         if (row.className.match("Unread") || row.className.match("Selected")) {
2108                                                 Element.show(row);
2109                                                 vis_ids.push(ids[i]);
2110                                         } else {
2111                                                 //Effect.Fade(row, {duration : 0.3});
2112                                                 Element.hide(row);
2113                                         }
2114                                 } else {
2115                                         Element.show(row);
2116                                         vis_ids.push(ids[i]);
2117                                 }
2118                         }
2119                 }
2120
2121                 fixHeadlinesOrder(vis_ids);
2122
2123                 read_headlines_visible = !read_headlines_visible;
2124
2125         } catch (e) {
2126                 exception_error("hideReadHeadlines", e);
2127         }
2128 }
2129
2130 function invertHeadlineSelection() {
2131         try {
2132                 var rows = new Array();
2133                 var r = false;
2134
2135                 if (!isCdmMode()) {
2136                         r = document.getElementsByTagName("TR");
2137                 } else {
2138                         r = document.getElementsByTagName("DIV");
2139                 }
2140
2141                 for (var i = 0; i < r.length; i++) {
2142                         if (r[i].id && r[i].id.match("RROW-")) {
2143                                 rows.push(r[i]);
2144                         }
2145                 }
2146
2147                 for (var i = 0; i < rows.length; i++) {
2148                         var nc = rows[i].className;
2149                         var id = rows[i].id.replace("RROW-", "");
2150                         var cb = $("RCHK-" + id);
2151
2152                         if (!rows[i].className.match("Selected")) {
2153                                 nc = nc + "Selected";
2154                                 cb.checked = true;
2155                         } else {
2156                                 nc = nc.replace("Selected", "");
2157                                 cb.checked = false;
2158                         }
2159
2160                         rows[i].className = nc;
2161
2162                 }
2163
2164         } catch (e) {
2165                 exception_error("invertHeadlineSelection", e);
2166         }
2167 }
2168
2169 function getArticleUnderPointer() {
2170         return post_under_pointer;
2171 }
2172
2173 function zoomToArticle(id) {
2174         try {
2175                 var w = window.open("backend.php?op=view&mode=zoom&id=" + param_escape(id),
2176                         "ttrss_zoom_" + id,
2177                         "status=0,toolbar=0,location=0,width=450,height=300,scrollbars=1,menubar=0");
2178
2179         } catch (e) {
2180                 exception_error("zoomToArticle", e);
2181         }
2182 }
2183
2184 function scrollArticle(offset) {
2185         try {
2186                 if (!isCdmMode()) {
2187                         var ci = $("content-insert");
2188                         if (ci) {
2189                                 ci.scrollTop += offset;
2190                         }
2191                 } else {
2192                         var hi = $("headlinesInnerContainer");
2193                         if (hi) {
2194                                 hi.scrollTop += offset;
2195                         }
2196
2197                 }
2198         } catch (e) {
2199                 exception_error("scrollArticle", e);
2200         }
2201 }
2202
2203 function show_labels_in_headlines(transport) {
2204         try {
2205                 if (transport.responseXML) {
2206                         var info = transport.responseXML.getElementsByTagName("info-for-headlines")[0];
2207
2208                         var elems = info.getElementsByTagName("entry");
2209
2210                         for (var l = 0; l < elems.length; l++) {
2211                                 var e_id = elems[l].getAttribute("id");
2212
2213                                 if (e_id) {
2214
2215                                         var ctr = $("HLLCTR-" + e_id);
2216
2217                                         if (ctr) {
2218                                                 ctr.innerHTML = elems[l].firstChild.nodeValue;
2219                                         }
2220                                 }
2221
2222                         }
2223
2224                 }
2225         } catch (e) {
2226                 exception_error("show_labels_in_headlines", e);
2227
2228         }
2229 }
2230
2231 function toggleHeadlineActions() {
2232         try {
2233                 var e = $("headlineActionsBody");
2234                 var p = $("headlineActionsDrop");
2235
2236                 if (!Element.visible(e)) {
2237                         Element.show(e);
2238                 } else {
2239                         Element.hide(e);
2240                 }
2241
2242                 e.scrollTop = 0;
2243                 e.style.left = (p.offsetLeft + 1) + "px";
2244                 e.style.top = (p.offsetTop + p.offsetHeight + 2) + "px";
2245
2246         } catch (e) {
2247                 exception_error("toggleHeadlineActions", e);
2248         }
2249 }
2250
2251 function publishWithNote(id, def_note) {
2252         try {
2253                 if (!def_note) def_note = '';
2254
2255                 var note = prompt(__("Please enter a note for this article:"), def_note);
2256
2257                 if (note != undefined) {
2258                         togglePub(id, false, false, note);
2259                 }
2260
2261         } catch (e) {
2262                 exception_error("publishWithNote", e);
2263         }
2264 }