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