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