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