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         // check for combined mode
 679                 if (document.getElementById("headlinesList")) {
 680
 681                         var rows = getVisibleHeadlineIds();
 682
 683                         var prev_id = false;
 684                         var next_id = false;
 685
 686                         if (!document.getElementById('RROW-' + active_post_id)) {
 687                                 active_post_id = false;
 688                         }
 689
 690                         if (active_post_id == false) {
 691                                 next_id = getFirstVisibleHeadlineId();
 692                                 prev_id = getLastVisibleHeadlineId();
 693                         } else {
 694                                 for (var i = 0; i < rows.length; i++) {
 695                                         if (rows[i] == active_post_id) {
 696                                                 prev_id = rows[i-1];
 697                                                 next_id = rows[i+1];
 698                                         }
 699                                 }
 700                         }
 701
 702                         if (mode == "next") {
 703                                 if (next_id) {
 704                                         correctHeadlinesOffset(next_id);
 705                                         view(next_id, getActiveFeedId());
 706                                 }
 707                         }
 708
 709                         if (mode == "prev") {
 710                                 if (prev_id) {
 711                                         correctHeadlinesOffset(prev_id);
 712                                         view(prev_id, getActiveFeedId());
 713                                 }
 714                         }
 715                 } else {
 716                         var rows = cdmGetUnreadArticles();
 717
 718                         if (mode == "next") {
 719
 720                                 for (var i = 0; i < rows.length; i++) {
 721
 722                                         if (cdmArticleIsActuallyVisible(rows[i]) ||
 723                                                         cdmArticleIsBelowViewport(rows[i])) {
 724
 725                                                 if (!cdmArticleIsActuallyVisible(rows[i])) {
 726                                                         cdmScrollToArticleId(rows[i]);
 727                                                 }
 728                                                 //setTimeout("toggleUnread(" + rows[i] + ", undefined, true)", 500);
 729                                                 toggleUnread(rows[i], undefined, true);
 730
 731                                                 return;
 732                                         }
 733                                 }
 734
 735                                 cdmScrollViewport('bottom');
 736
 737                         } else if (mode == "prev") {
 738
 739                                 for (var i = 0; i < rows.length; i++) {
 740
 741                                         if (cdmArticleIsAboveViewport(rows[i]) &&
 742                                                                 !cdmArticleIsAboveViewport(rows[i+1])) {
 743
 744                                                 cdmScrollToArticleId(rows[i]);
 745                                                 //setTimeout("toggleUnread(" + rows[i] + ", undefined, true)", 500);
 746                                                 toggleUnread(rows[i], undefined, true);
 747
 748                                                 break;
 749                                         }
 750                                 }
 751
 752                         }
 753
 754                 }
 755
 756         } catch (e) {
 757                 exception_error(e, "moveToPost");
 758         }
 759 }
 760
 761 function toggleSelected(id) {
 762         try {
 763
 764                 var row = document.getElementById("RROW-" + id);
 765                 if (row) {
 766                         var nc = row.className;
 767
 768                         if (!nc.match("Selected")) {
 769                                 nc = nc + "Selected";
 770                         } else {
 771                                 nc = nc.replace("Selected", "");
 772                         }
 773
 774                         row.className = nc;
 775                 }
 776         } catch (e) {
 777                 exception_error(e, "toggleSelected");
 778         }
 779 }
 780
 781 function toggleUnread_afh(effect) {
 782         try {
 783
 784                 var elem = effect.element;
 785                 elem.style.backgroundColor = "";
 786
 787         } catch (e) {
 788                 exception_error(e, "toggleUnread_afh");
 789         }
 790 }
 791
 792 function toggleUnread(id, cmode, effect) {
 793         try {
 794
 795                 var row = document.getElementById("RROW-" + id);
 796                 if (row) {
 797                         var nc = row.className;
 798                         var is_selected = row.className.match("Selected");
 799                         nc = nc.replace("Unread", "");
 800                         nc = nc.replace("Selected", "");
 801
 802                         // since we are removing selection from the object, uncheck
 803                         // corresponding checkbox
 804
 805                         var cb = document.getElementById("RCHK-" + id);
 806                         if (cb) {
 807                                 cb.checked = false;
 808                         }
 809
 810                         // NOTE: I'm not sure that resetting selection here is a feature -fox
 811
 812                         if (cmode == undefined || cmode == 2) {
 813                                 if (row.className.match("Unread")) {
 814                                         row.className = nc;
 815
 816                                         if (effect) {
 817                                                 new Effect.Highlight(row, {duration: 1, startcolor: "#fff7d5",
 818                                                         afterFinish: toggleUnread_afh,
 819                                                         queue: { position:'end', scope: 'TMRQ-' + id, limit: 1 } } );
 820                                         }
 821
 822                                 } else {
 823                                         row.className = nc + "Unread";
 824                                 }
 825                         } else if (cmode == 0) {
 826                                 row.className = nc;
 827
 828                                 if (effect) {
 829                                         new Effect.Highlight(row, {duration: 1, startcolor: "#fff7d5",
 830                                                 afterFinish: toggleUnread_afh,
 831                                                 queue: { position:'end', scope: 'TMRQ-' + id, limit: 1 } } );
 832                                 }
 833                         } else if (cmode == 1) {
 834                                 row.className = nc + "Unread";
 835                         }
 836
 837                         // Disable unmarking as selected for the time being (16.05.08) -fox
 838                         if (is_selected) row.className = row.className + "Selected";
 839
 840                         if (cmode == undefined) cmode = 2;
 841
 842                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
 843                                 param_escape(id) + "&cmode=" + param_escape(cmode);
 844
 845 //                      notify_progress("Loading, please wait...");
 846
 847                         new Ajax.Request(query, {
 848                                 onComplete: function(transport) {
 849                                         all_counters_callback2(transport);
 850                                 } });
 851
 852                 }
 853
 854
 855         } catch (e) {
 856                 exception_error("toggleUnread", e);
 857         }
 858 }
 859
 860 function selectionToggleUnread(cdm_mode, set_state, callback_func, no_error) {
 861         try {
 862                 var rows;
 863
 864                 if (cdm_mode) {
 865                         rows = cdmGetSelectedArticles();
 866                 } else {
 867                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 868                 }
 869
 870                 if (rows.length == 0 && !no_error) {
 871                         alert(__("No articles are selected."));
 872                         return;
 873                 }
 874
 875                 for (i = 0; i < rows.length; i++) {
 876                         var row = document.getElementById("RROW-" + rows[i]);
 877                         if (row) {
 878                                 var nc = row.className;
 879                                 nc = nc.replace("Unread", "");
 880                                 nc = nc.replace("Selected", "");
 881
 882                                 if (set_state == undefined) {
 883                                         if (row.className.match("Unread")) {
 884                                                 row.className = nc + "Selected";
 885                                         } else {
 886                                                 row.className = nc + "UnreadSelected";
 887                                         }
 888                                 }
 889
 890                                 if (set_state == false) {
 891                                         row.className = nc + "Selected";
 892                                 }
 893
 894                                 if (set_state == true) {
 895                                         row.className = nc + "UnreadSelected";
 896                                 }
 897                         }
 898                 }
 899
 900                 if (rows.length > 0) {
 901
 902                         var cmode = "";
 903
 904                         if (set_state == undefined) {
 905                                 cmode = "2";
 906                         } else if (set_state == true) {
 907                                 cmode = "1";
 908                         } else if (set_state == false) {
 909                                 cmode = "0";
 910                         }
 911
 912                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
 913                                 param_escape(rows.toString()) + "&cmode=" + cmode;
 914
 915                         notify_progress("Loading, please wait...");
 916
 917                         new Ajax.Request(query, {
 918                                 onComplete: function(transport) {
 919                                         catchup_callback2(transport, callback_func);
 920                                 } });
 921
 922                 }
 923
 924         } catch (e) {
 925                 exception_error("selectionToggleUnread", e);
 926         }
 927 }
 928
 929 function selectionToggleMarked(cdm_mode) {
 930         try {
 931
 932                 var rows;
 933
 934                 if (cdm_mode) {
 935                         rows = cdmGetSelectedArticles();
 936                 } else {
 937                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 938                 }
 939
 940                 if (rows.length == 0) {
 941                         alert(__("No articles are selected."));
 942                         return;
 943                 }
 944
 945                 for (i = 0; i < rows.length; i++) {
 946                         toggleMark(rows[i], true, true);
 947                 }
 948
 949                 if (rows.length > 0) {
 950
 951                         var query = "backend.php?op=rpc&subop=markSelected&ids=" +
 952                                 param_escape(rows.toString()) + "&cmode=2";
 953
 954                         query = query + "&afid=" + getActiveFeedId();
 955
 956 /*                      if (tagsAreDisplayed()) {
 957                                 query = query + "&omode=tl";
 958                         } else {
 959                                 query = query + "&omode=flc";
 960                         } */
 961
 962                         query = query + "&omode=lc";
 963
 964                         new Ajax.Request(query, {
 965                                 onComplete: function(transport) {
 966                                         all_counters_callback2(transport);
 967                                 } });
 968
 969                 }
 970
 971         } catch (e) {
 972                 exception_error("selectionToggleMarked", e);
 973         }
 974 }
 975
 976 function selectionTogglePublished(cdm_mode) {
 977         try {
 978
 979                 var rows;
 980
 981                 if (cdm_mode) {
 982                         rows = cdmGetSelectedArticles();
 983                 } else {
 984                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 985                 }
 986
 987                 if (rows.length == 0) {
 988                         alert(__("No articles are selected."));
 989                         return;
 990                 }
 991
 992                 for (i = 0; i < rows.length; i++) {
 993                         togglePub(rows[i], true, true);
 994                 }
 995
 996                 if (rows.length > 0) {
 997
 998                         var query = "backend.php?op=rpc&subop=publishSelected&ids=" +
 999                                 param_escape(rows.toString()) + "&cmode=2";
1000
1001                         query = query + "&afid=" + getActiveFeedId();
1002
1003 /*                      if (tagsAreDisplayed()) {
1004                                 query = query + "&omode=tl";
1005                         } else {
1006                                 query = query + "&omode=flc";
1007                         } */
1008
1009                         query = query + "&omode=lc";
1010
1011                         new Ajax.Request(query, {
1012                                 onComplete: function(transport) {
1013                                         all_counters_callback2(transport);
1014                                 } });
1015
1016                 }
1017
1018         } catch (e) {
1019                 exception_error("selectionToggleMarked", e);
1020         }
1021 }
1022
1023 function cdmGetSelectedArticles() {
1024         var sel_articles = new Array();
1025         var container = document.getElementById("headlinesInnerContainer");
1026
1027         for (i = 0; i < container.childNodes.length; i++) {
1028                 var child = container.childNodes[i];
1029
1030                 if (child.id.match("RROW-") && child.className.match("Selected")) {
1031                         var c_id = child.id.replace("RROW-", "");
1032                         sel_articles.push(c_id);
1033                 }
1034         }
1035
1036         return sel_articles;
1037 }
1038
1039 function cdmGetVisibleArticles() {
1040         var sel_articles = new Array();
1041         var container = document.getElementById("headlinesInnerContainer");
1042
1043         for (i = 0; i < container.childNodes.length; i++) {
1044                 var child = container.childNodes[i];
1045
1046                 if (child.id.match("RROW-")) {
1047                         var c_id = child.id.replace("RROW-", "");
1048                         sel_articles.push(c_id);
1049                 }
1050         }
1051
1052         return sel_articles;
1053 }
1054
1055 function cdmGetUnreadArticles() {
1056         var sel_articles = new Array();
1057         var container = document.getElementById("headlinesInnerContainer");
1058
1059         for (i = 0; i < container.childNodes.length; i++) {
1060                 var child = container.childNodes[i];
1061
1062                 if (child.id.match("RROW-") && child.className.match("Unread")) {
1063                         var c_id = child.id.replace("RROW-", "");
1064                         sel_articles.push(c_id);
1065                 }
1066         }
1067
1068         return sel_articles;
1069 }
1070
1071
1072 // mode = all,none,unread
1073 function cdmSelectArticles(mode) {
1074         var container = document.getElementById("headlinesInnerContainer");
1075
1076         for (i = 0; i < container.childNodes.length; i++) {
1077                 var child = container.childNodes[i];
1078
1079                 if (child.id.match("RROW-")) {
1080                         var aid = child.id.replace("RROW-", "");
1081
1082                         var cb = document.getElementById("RCHK-" + aid);
1083
1084                         if (mode == "all") {
1085                                 if (!child.className.match("Selected")) {
1086                                         child.className = child.className + "Selected";
1087                                         cb.checked = true;
1088                                 }
1089                         } else if (mode == "unread") {
1090                                 if (child.className.match("Unread") && !child.className.match("Selected")) {
1091                                         child.className = child.className + "Selected";
1092                                         cb.checked = true;
1093                                 }
1094                         } else {
1095                                 child.className = child.className.replace("Selected", "");
1096                                 cb.checked = false;
1097                         }
1098                 }
1099         }
1100 }
1101
1102 function catchupPage() {
1103
1104         var fn = getFeedName(getActiveFeedId(), active_feed_is_cat);
1105
1106         var str = __("Mark all visible articles in %s as read?");
1107
1108         str = str.replace("%s", fn);
1109
1110         if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1111                 return;
1112         }
1113
1114         if (document.getElementById("headlinesList")) {
1115                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, 'Unread', true);
1116                 selectionToggleUnread(false, false, 'viewCurrentFeed()', true);
1117                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
1118         } else {
1119                 cdmSelectArticles('all');
1120                 selectionToggleUnread(true, false, 'viewCurrentFeed()', true)
1121                 cdmSelectArticles('none');
1122         }
1123 }
1124
1125 function catchupSelection() {
1126
1127         try {
1128
1129                 var rows;
1130
1131                 if (document.getElementById("headlinesList")) {
1132                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1133                 } else {
1134                         rows = cdmGetSelectedArticles();
1135                 }
1136
1137                 if (rows.length == 0) {
1138                         alert(__("No articles are selected."));
1139                         return;
1140                 }
1141
1142
1143                 var fn = getFeedName(getActiveFeedId(), active_feed_is_cat);
1144
1145                 var str = __("Mark %d selected articles in %s as read?");
1146
1147                 str = str.replace("%d", rows.length);
1148                 str = str.replace("%s", fn);
1149
1150                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1151                         return;
1152                 }
1153
1154                 if (document.getElementById("headlinesList")) {
1155                         selectionToggleUnread(false, false, 'viewCurrentFeed()', true);
1156         //              selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
1157                 } else {
1158                         selectionToggleUnread(true, false, 'viewCurrentFeed()', true)
1159         //              cdmSelectArticles('none');
1160                 }
1161
1162         } catch (e) {
1163                 exception_error("catchupSelection", e);
1164         }
1165 }
1166
1167
1168 function labelFromSearch(search, search_mode, match_on, feed_id, is_cat) {
1169
1170         if (!xmlhttp_ready(xmlhttp_rpc)) {
1171                 printLockingError();
1172         }
1173
1174         var title = prompt(__("Please enter label title:"), "");
1175
1176         if (title) {
1177
1178                 var query = "backend.php?op=labelFromSearch&search=" + param_escape(search) +
1179                         "&smode=" + param_escape(search_mode) + "&match=" + param_escape(match_on) +
1180                         "&feed=" + param_escape(feed_id) + "&is_cat=" + param_escape(is_cat) +
1181                         "&title=" + param_escape(title);
1182
1183                 debug("LFS: " + query);
1184
1185                 new Ajax.Request(query, {
1186                         onComplete: function(transport) {
1187                                         dlg_frefresh_callback(transport);
1188                                 } });
1189         }
1190 }
1191
1192 function editArticleTags(id, feed_id, cdm_enabled) {
1193         _tag_active_post_id = id;
1194         _tag_active_feed_id = feed_id;
1195         _tag_active_cdm = cdm_enabled;
1196
1197         cache_invalidate(id);
1198
1199         try {
1200                 _tag_cdm_scroll = document.getElementById("headlinesInnerContainer").scrollTop;
1201         } catch (e) { }
1202         displayDlg('editArticleTags', id);
1203 }
1204
1205
1206 function tag_saved_callback(transport) {
1207         try {
1208                 debug("in tag_saved_callback");
1209
1210                 closeInfoBox();
1211                 notify("");
1212
1213                 if (tagsAreDisplayed()) {
1214                         _reload_feedlist_after_view = true;
1215                 }
1216
1217                 if (!_tag_active_cdm) {
1218                         if (active_post_id == _tag_active_post_id) {
1219                                 debug("reloading current article");
1220                                 view(_tag_active_post_id, _tag_active_feed_id);
1221                         }
1222                 } else {
1223                         debug("reloading current feed");
1224                         viewCurrentFeed();
1225                 }
1226
1227         } catch (e) {
1228                 exception_error("catchup_callback", e);
1229         }
1230 }
1231
1232 function editTagsSave() {
1233
1234         notify_progress("Saving article tags...");
1235
1236         var form = document.forms["tag_edit_form"];
1237
1238         var query = Form.serialize("tag_edit_form");
1239
1240         query = "backend.php?op=rpc&subop=setArticleTags&" + query;
1241
1242         debug(query);
1243
1244         new Ajax.Request(query, {
1245                 onComplete: function(transport) {
1246                                 tag_saved_callback(transport);
1247                         } });
1248
1249 }
1250
1251 function editTagsInsert() {
1252         try {
1253
1254                 var form = document.forms["tag_edit_form"];
1255
1256                 var found_tags = form.found_tags;
1257                 var tags_str = form.tags_str;
1258
1259                 var tag = found_tags[found_tags.selectedIndex].value;
1260
1261                 if (tags_str.value.length > 0 &&
1262                                 tags_str.value.lastIndexOf(", ") != tags_str.value.length - 2) {
1263
1264                         tags_str.value = tags_str.value + ", ";
1265                 }
1266
1267                 tags_str.value = tags_str.value + tag + ", ";
1268
1269                 found_tags.selectedIndex = 0;
1270
1271         } catch (e) {
1272                 exception_error(e, "editTagsInsert");
1273         }
1274 }
1275
1276 function cdmScrollViewport(where) {
1277         debug("cdmScrollViewport: " + where);
1278
1279         var ctr = document.getElementById("headlinesInnerContainer");
1280
1281         if (!ctr) return;
1282
1283         if (where == "bottom") {
1284                 ctr.scrollTop = ctr.scrollHeight;
1285         } else {
1286                 ctr.scrollTop = where;
1287         }
1288 }
1289
1290 function cdmArticleIsBelowViewport(id) {
1291         try {
1292                 var ctr = document.getElementById("headlinesInnerContainer");
1293                 var e = document.getElementById("RROW-" + id);
1294
1295                 if (!e || !ctr) return;
1296
1297                 // article starts below viewport
1298
1299                 if (ctr.scrollTop < e.offsetTop) {
1300                         return true;
1301                 } else {
1302                         return false;
1303                 }
1304
1305         } catch (e) {
1306                 exception_error(e, "cdmArticleIsVisible");
1307         }
1308 }
1309
1310 function cdmArticleIsAboveViewport(id) {
1311         try {
1312                 var ctr = document.getElementById("headlinesInnerContainer");
1313                 var e = document.getElementById("RROW-" + id);
1314
1315                 if (!e || !ctr) return;
1316
1317                 // article starts above viewport
1318
1319                 if (ctr.scrollTop > e.offsetTop + e.offsetHeight) {
1320                         return true;
1321                 } else {
1322                         return false;
1323                 }
1324
1325         } catch (e) {
1326                 exception_error(e, "cdmArticleIsVisible");
1327         }
1328 }
1329
1330 function cdmScrollToArticleId(id) {
1331         try {
1332                 var ctr = document.getElementById("headlinesInnerContainer");
1333                 var e = document.getElementById("RROW-" + id);
1334
1335                 if (!e || !ctr) return;
1336
1337                 ctr.scrollTop = e.offsetTop;
1338
1339         } catch (e) {
1340                 exception_error(e, "cdmScrollToArticleId");
1341         }
1342 }
1343
1344 function cdmArticleIsActuallyVisible(id) {
1345         try {
1346                 var ctr = document.getElementById("headlinesInnerContainer");
1347                 var e = document.getElementById("RROW-" + id);
1348
1349                 if (!e || !ctr) return;
1350
1351                 // article fits in viewport OR article is longer than viewport and
1352                 // its bottom is visible
1353
1354                 if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <=
1355                                 ctr.scrollTop + ctr.offsetHeight) {
1356
1357                         return true;
1358
1359                 } else if (e.offsetHeight > ctr.offsetHeight &&
1360                                 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1361                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
1362
1363                         return true;
1364
1365                 }
1366
1367                 return false;
1368
1369         } catch (e) {
1370                 exception_error(e, "cdmArticleIsVisible");
1371         }
1372 }
1373
1374 function cdmWatchdog() {
1375
1376         try {
1377
1378                 var ctr = document.getElementById("headlinesInnerContainer");
1379
1380                 if (!ctr) return;
1381
1382                 var ids = new Array();
1383
1384                 var e = ctr.firstChild;
1385
1386                 while (e) {
1387                         if (e.className && e.className == "cdmArticleUnread" && e.id &&
1388                                         e.id.match("RROW-")) {
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 //                                      debug(e.id + " is visible " + e.offsetTop + "." +
1397 //                                              (e.offsetTop + e.offsetHeight) + " vs " + ctr.scrollTop + "." +
1398 //                                              (ctr.scrollTop + ctr.offsetHeight));
1399
1400                                         ids.push(e.id.replace("RROW-", ""));
1401
1402                                 } else if (e.offsetHeight > ctr.offsetHeight &&
1403                                                 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1404                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
1405
1406                                         ids.push(e.id.replace("RROW-", ""));
1407
1408                                 }
1409
1410                                 // method 2: article bottom is visible and is in upper 1/2 of the viewport
1411
1412 /*                              if (e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1413                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight/2) {
1414
1415                                         ids.push(e.id.replace("RROW-", ""));
1416
1417                                 } */
1418
1419                         }
1420
1421                         e = e.nextSibling;
1422                 }
1423
1424                 debug("cdmWatchdog, ids= " + ids.toString());
1425
1426                 if (ids.length > 0) {
1427
1428                         for (var i = 0; i < ids.length; i++) {
1429                                 var e = document.getElementById("RROW-" + ids[i]);
1430                                 if (e) {
1431                                         e.className = e.className.replace("Unread", "");
1432                                 }
1433                         }
1434
1435                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
1436                                 param_escape(ids.toString()) + "&cmode=0";
1437
1438                         new Ajax.Request(query, {
1439                                 onComplete: function(transport) {
1440                                         all_counters_callback2(transport);
1441                                 } });
1442
1443                 }
1444
1445                 _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 4000);
1446
1447         } catch (e) {
1448                 exception_error(e, "cdmWatchdog");
1449         }
1450
1451 }
1452
1453
1454 function cache_inject(id, article, param) {
1455         if (!cache_check_param(id, param)) {
1456                 debug("cache_article: miss: " + id + " [p=" + param + "]");
1457
1458                 var cache_obj = new Array();
1459
1460                 cache_obj["id"] = id;
1461                 cache_obj["data"] = article;
1462                 cache_obj["param"] = param;
1463
1464                 article_cache.push(cache_obj);
1465
1466         } else {
1467                 debug("cache_article: hit: " + id + " [p=" + param + "]");
1468         }
1469 }
1470
1471 function cache_find(id) {
1472         for (var i = 0; i < article_cache.length; i++) {
1473                 if (article_cache[i]["id"] == id) {
1474                         return article_cache[i]["data"];
1475                 }
1476         }
1477         return false;
1478 }
1479
1480 function cache_find_param(id, param) {
1481         for (var i = 0; i < article_cache.length; i++) {
1482                 if (article_cache[i]["id"] == id && article_cache[i]["param"] == param) {
1483                         return article_cache[i]["data"];
1484                 }
1485         }
1486         return false;
1487 }
1488
1489 function cache_check(id) {
1490         for (var i = 0; i < article_cache.length; i++) {
1491                 if (article_cache[i]["id"] == id) {
1492                         return true;
1493                 }
1494         }
1495         return false;
1496 }
1497
1498 function cache_check_param(id, param) {
1499         for (var i = 0; i < article_cache.length; i++) {
1500
1501 //              debug("cache_check_param " + article_cache[i]["id"] + ":" +
1502 //                      article_cache[i]["param"] + " vs " + id + ":" + param);
1503
1504                 if (article_cache[i]["id"] == id && article_cache[i]["param"] == param) {
1505                         return true;
1506                 }
1507         }
1508         return false;
1509 }
1510
1511 function cache_expire() {
1512         while (article_cache.length > 20) {
1513                 article_cache.shift();
1514         }
1515 }
1516
1517 function cache_empty() {
1518         article_cache = new Array();
1519 }
1520
1521 function cache_invalidate(id) {
1522         var i = 0
1523
1524         try {
1525
1526                 while (i < article_cache.length) {
1527                         if (article_cache[i]["id"] == id) {
1528                                 debug("cache_invalidate: removed id " + id);
1529                                 article_cache.splice(i, 1);
1530                                 return true;
1531                         }
1532                         i++;
1533                 }
1534                 debug("cache_invalidate: id not found: " + id);
1535                 return false;
1536         } catch (e) {
1537                 exception_error("cache_invalidate", e);
1538         }
1539 }
1540
1541 function getActiveArticleId() {
1542         return active_post_id;
1543 }
1544
1545 function cdmMouseIn(elem) {
1546         try {
1547                 if (elem.id && elem.id.match("RROW-")) {
1548                         var id = elem.id.replace("RROW-", "");
1549                         active_post_id = id;
1550                 }
1551         } catch (e) {
1552                 exception_error("cdmMouseIn", e);
1553         }
1554
1555 }
1556
1557 function cdmMouseOut(elem) {
1558         active_post_id = false;
1559 }
1560
1561 function headlines_scroll_handler() {
1562         try {
1563
1564                 var e = document.getElementById("headlinesInnerContainer");
1565
1566                 // don't do infinite scrolling when Limit == All
1567
1568                 var toolbar_form = document.forms["main_toolbar_form"];
1569
1570                 var limit = toolbar_form.limit[toolbar_form.limit.selectedIndex];
1571                 if (limit.value != 0) {
1572
1573                         debug((e.scrollTop + e.offsetHeight) + " vs " + e.scrollHeight + " dis? " +
1574                                 _infscroll_disable);
1575
1576                         if (e.scrollTop + e.offsetHeight > e.scrollHeight - 100) {
1577                                 if (!_infscroll_disable) {
1578                                         debug("more cowbell!");
1579                                         viewNextFeedPage();
1580                                 }
1581                         }
1582                 }
1583
1584         } catch (e) {
1585                 exception_error("headlines_scroll_handler", e);
1586         }
1587 }
1588
1589 function catchupRelativeToArticle(below) {
1590
1591         try {
1592
1593                 if (!xmlhttp_ready(xmlhttp_rpc)) {
1594                         printLockingError();
1595                 }
1596
1597                 if (!getActiveArticleId()) {
1598                         alert(__("No article is selected."));
1599                         return;
1600                 }
1601
1602                 var visible_ids;
1603
1604                 if (document.getElementById("headlinesList")) {
1605                         visible_ids = getVisibleHeadlineIds();
1606                 } else {
1607                         visible_ids = cdmGetVisibleArticles();
1608                 }
1609
1610                 var ids_to_mark = new Array();
1611
1612                 if (!below) {
1613                         for (var i = 0; i < visible_ids.length; i++) {
1614                                 if (visible_ids[i] != getActiveArticleId()) {
1615                                         var e = document.getElementById("RROW-" + visible_ids[i]);
1616
1617                                         if (e && e.className.match("Unread")) {
1618                                                 ids_to_mark.push(visible_ids[i]);
1619                                         }
1620                                 } else {
1621                                         break;
1622                                 }
1623                         }
1624                 } else {
1625                         for (var i = visible_ids.length-1; i >= 0; i--) {
1626                                 if (visible_ids[i] != getActiveArticleId()) {
1627                                         var e = document.getElementById("RROW-" + visible_ids[i]);
1628
1629                                         if (e && e.className.match("Unread")) {
1630                                                 ids_to_mark.push(visible_ids[i]);
1631                                         }
1632                                 } else {
1633                                         break;
1634                                 }
1635                         }
1636                 }
1637
1638                 if (ids_to_mark.length == 0) {
1639                         alert(__("No articles found to mark"));
1640                 } else {
1641                         var msg = __("Mark %d article(s) as read?").replace("%d", ids_to_mark.length);
1642
1643                         if (confirm(msg)) {
1644
1645                                 for (var i = 0; i < ids_to_mark.length; i++) {
1646                                         var e = document.getElementById("RROW-" + ids_to_mark[i]);
1647                                         e.className = e.className.replace("Unread", "");
1648                                 }
1649
1650                                 var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
1651                                         param_escape(ids_to_mark.toString()) + "&cmode=0";
1652
1653                                 new Ajax.Request(query, {
1654                                         onComplete: function(transport) {
1655                                                 catchup_callback2(transport);
1656                                         } });
1657
1658                         }
1659                 }
1660
1661         } catch (e) {
1662                 exception_error("catchupRelativeToArticle", e);
1663         }
1664 }
1665
1666 function cdmExpandArticle(a_id) {
1667         try {
1668                 var id = 'CICD-' + a_id;
1669
1670                 Effect.Appear(id, {duration : 0.5,
1671                         beforeStart: function(effect) {
1672                                 var h_id = 'CICH-' + a_id;
1673                                 var h_elem = document.getElementById(h_id);
1674                                 if (h_elem) { h_elem.style.display = "none"; }
1675
1676                                 toggleUnread(a_id, 0);
1677                         }});
1678
1679
1680         } catch (e) {
1681                 exception_error("appearBlockElementF", e);
1682         }
1683
1684 }
1685
1686 function fixHeadlinesOrder(ids) {
1687         try {
1688                 for (var i = 0; i < ids.length; i++) {
1689                         var e = document.getElementById("RROW-" + ids[i]);
1690
1691                         if (e) {
1692                                 if (i % 2 == 0) {
1693                                         e.className = e.className.replace("even", "odd");
1694                                 } else {
1695                                         e.className = e.className.replace("odd", "even");
1696                                 }
1697                         }
1698                 }
1699         } catch (e) {
1700                 exception_error("fixHeadlinesOrder", e);
1701         }
1702 }
1703
1704 function subtoolbarSearch() {
1705
1706         try {
1707
1708                 var q = document.getElementById("subtoolbar_search_box");
1709
1710                 if (!q) return;
1711
1712                 q = q.value.toUpperCase();
1713
1714                 var ids = false;
1715                 var vis_ids = new Array();
1716
1717                 if (document.getElementById("headlinesList")) {
1718                         ids = getVisibleHeadlineIds();
1719                 } else {
1720                         ids = cdmGetVisibleArticles();
1721                 }
1722
1723                 for (var i = 0; i < ids.length; i++) {
1724                         var title = document.getElementById("RTITLE-" + ids[i]);
1725
1726                         if (title) {
1727                                 if (!title.innerHTML.toUpperCase().match(q)) {
1728                                         Element.hide(document.getElementById("RROW-" + ids[i]));
1729                                 } else {
1730                                         Element.show(document.getElementById("RROW-" + ids[i]));
1731                                         vis_ids.push(ids[i]);
1732                                 }
1733                         }
1734                 }
1735
1736                 fixHeadlinesOrder(vis_ids);
1737
1738         } catch (e) {
1739                 exception_error("subtoolbarSearch", e);
1740         }
1741
1742 }