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