viewfeed.js

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