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