viewfeed.js

   1 var active_post_id = false;
   2 var last_article_view = false;
   3 var active_real_feed_id = false;
   4
   5 // FIXME: kludges, needs proper implementation
   6 var _reload_feedlist_after_view = false;
   7
   8 var _cdm_wd_timeout = false;
   9 var _cdm_wd_vishist = new Array();
  10
  11 var article_cache = new Array();
  12
  13 var vgroup_last_feed = false;
  14 var post_under_pointer = false;
  15
  16 var last_requested_article = false;
  17
  18 function toggle_published_callback(transport) {
  19         try {
  20                 if (transport.responseXML) {
  21
  22                         all_counters_callback2(transport);
  23
  24                         var note = transport.responseXML.getElementsByTagName("note")[0];
  25
  26                         if (note) {
  27                                 var note_id = note.getAttribute("id");
  28                                 var note_size = note.getAttribute("size");
  29                                 var note_content = note.firstChild.nodeValue;
  30
  31                                 var container = $('POSTNOTE-' + note_id);
  32
  33                                 cache_invalidate(note_id);
  34
  35                                 if (container) {
  36                                         if (note_size == "0") {
  37                                                 Element.hide(container);
  38                                         } else {
  39                                                 container.innerHTML = note_content;
  40                                                 Element.show(container);
  41                                         }
  42                                 }
  43                         }
  44                 }
  45
  46         } catch (e) {
  47                 exception_error("toggle_published_callback", e, transport);
  48         }
  49 }
  50
  51 function catchup_callback2(transport, callback) {
  52         try {
  53                 debug("catchup_callback2 " + transport + ", " + callback);
  54                 notify("");
  55                 all_counters_callback2(transport);
  56                 if (callback) {
  57                         setTimeout(callback, 10);
  58                 }
  59         } catch (e) {
  60                 exception_error("catchup_callback2", e, transport);
  61         }
  62 }
  63
  64 function clean_feed_selections() {
  65         try {
  66                 var feeds = $("feedList").getElementsByTagName("LI");
  67
  68                 for (var i = 0; i < feeds.length; i++) {
  69                         if (feeds[i].id && feeds[i].id.match("FEEDR-")) {
  70                                 feeds[i].className = feeds[i].className.replace("Selected", "");
  71                         }
  72                         if (feeds[i].id && feeds[i].id.match("FCAT-")) {
  73                                 feeds[i].className = feeds[i].className.replace("Selected", "");
  74                         }
  75                 }
  76         } catch (e) {
  77                 exception_error("clean_feed_selections", e);
  78         }
  79 }
  80
  81 function headlines_callback2(transport, feed_cur_page) {
  82         try {
  83
  84                 if (!transport.responseText && db) {
  85                         offlineConfirmModeChange();
  86                         return;
  87                 }
  88
  89                 loading_set_progress(100);
  90
  91                 debug("headlines_callback2 [page=" + feed_cur_page + "]");
  92
  93                 if (!transport_error_check(transport)) return;
  94
  95                 clean_feed_selections();
  96
  97                 var is_cat = false;
  98                 var feed_id = false;
  99
 100                 if (transport.responseXML) {
 101                         var headlines = transport.responseXML.getElementsByTagName("headlines")[0];
 102                         if (headlines) {
 103                                 is_cat = headlines.getAttribute("is_cat");
 104                                 feed_id = headlines.getAttribute("id");
 105                                 setActiveFeedId(feed_id, is_cat);
 106                         }
 107                 }
 108
 109                 if (!is_cat) {
 110                         var feedr = $("FEEDR-" + feed_id);
 111                         if (feedr && !feedr.className.match("Selected")) {
 112                                 feedr.className = feedr.className + "Selected";
 113                         }
 114                 } else {
 115                         var feedr = $("FCAT-" + feed_id);
 116                         if (feedr && !feedr.className.match("Selected")) {
 117                                 feedr.className = feedr.className + "Selected";
 118                         }
 119                 }
 120
 121                 var f = $("headlines-frame");
 122                 try {
 123                         if (feed_cur_page == 0) {
 124                                 debug("resetting headlines scrollTop");
 125                                 f.scrollTop = 0;
 126                         }
 127                 } catch (e) { };
 128
 129                 if (transport.responseXML) {
 130                         var headlines = transport.responseXML.getElementsByTagName("headlines")[0];
 131                         var headlines_count_obj = transport.responseXML.getElementsByTagName("headlines-count")[0];
 132                         var headlines_unread_obj = transport.responseXML.getElementsByTagName("headlines-unread")[0];
 133                         var disable_cache_obj = transport.responseXML.getElementsByTagName("disable-cache")[0];
 134
 135                         var vgroup_last_feed_obj =  transport.responseXML.getElementsByTagName("vgroup-last-feed")[0];
 136
 137                         var headlines_count = headlines_count_obj.getAttribute("value");
 138                         var headlines_unread = headlines_unread_obj.getAttribute("value");
 139                         var disable_cache = disable_cache_obj.getAttribute("value") != "0";
 140
 141                         vgroup_last_feed = vgroup_last_feed_obj.getAttribute("value");
 142
 143                         if (headlines_count == 0) {
 144                                 _infscroll_disable = 1;
 145                         } else {
 146                                 _infscroll_disable = 0;
 147                         }
 148
 149                         var counters = transport.responseXML.getElementsByTagName("counters")[0];
 150                         var articles = transport.responseXML.getElementsByTagName("article");
 151                         var runtime_info = transport.responseXML.getElementsByTagName("runtime-info");
 152
 153                         if (feed_cur_page == 0) {
 154                                 if (headlines) {
 155                                         f.innerHTML = headlines.firstChild.nodeValue;
 156
 157                                         var cache_prefix = "";
 158
 159                                         if (is_cat) {
 160                                                 cache_prefix = "C:";
 161                                         } else {
 162                                                 cache_prefix = "F:";
 163                                         }
 164
 165                                         cache_invalidate(cache_prefix + feed_id);
 166
 167                                         if (!disable_cache) {
 168                                                 cache_inject(cache_prefix + feed_id,
 169                                                         headlines.firstChild.nodeValue, headlines_unread);
 170                                         }
 171
 172                                 } else {
 173                                         debug("headlines_callback: returned no data");
 174                                 f.innerHTML = "<div class='whiteBox'>" + __('Could not update headlines (missing XML data)') + "</div>";
 175
 176                                 }
 177                         } else {
 178                                 if (headlines) {
 179                                         if (headlines_count > 0) {
 180                                                 debug("adding some more headlines...");
 181
 182                                                 var c = $("headlinesList");
 183
 184                                                 if (!c) {
 185                                                         c = $("headlinesInnerContainer");
 186                                                 }
 187
 188                                                 var ids = getSelectedArticleIds2();
 189
 190                                                 c.innerHTML = c.innerHTML + headlines.firstChild.nodeValue;
 191
 192                                                 debug("restore selected ids: " + ids);
 193
 194                                                 for (var i = 0; i < ids.length; i++) {
 195                                                         markHeadline(ids[i]);
 196                                                 }
 197
 198                                         } else {
 199                                                 debug("no new headlines received");
 200                                         }
 201                                 } else {
 202                                         debug("headlines_callback: returned no data");
 203                                         notify_error("Error while trying to load more headlines");
 204                                 }
 205
 206                         }
 207
 208                         if (articles) {
 209                                 for (var i = 0; i < articles.length; i++) {
 210                                         var a_id = articles[i].getAttribute("id");
 211                                         debug("found id: " + a_id);
 212                                         cache_inject(a_id, articles[i].firstChild.nodeValue);
 213                                 }
 214                         } else {
 215                                 debug("no cached articles received");
 216                         }
 217
 218                         if (counters) {
 219                                 debug("parsing piggybacked counters: " + counters);
 220                                 parse_counters(counters, false);
 221                         } else {
 222                                 debug("counters container not found in reply, requesting...");
 223                                 request_counters();
 224                         }
 225
 226                         if (runtime_info) {
 227                                 debug("parsing runtime info: " + runtime_info[0]);
 228                                 parse_runtime_info(runtime_info[0]);
 229                         } else {
 230                                 debug("counters container not found in reply");
 231                         }
 232
 233                 } else {
 234                         debug("headlines_callback: returned no XML object");
 235                         f.innerHTML = "<div class='whiteBox'>" + __('Could not update headlines (missing XML object)') + "</div>";
 236                 }
 237
 238                 if (typeof correctPNG != 'undefined') {
 239                         correctPNG();
 240                 }
 241
 242                 if (_cdm_wd_timeout) window.clearTimeout(_cdm_wd_timeout);
 243
 244                 if (!$("headlinesList") &&
 245                                 getActiveFeedId() != -3 &&
 246                                 getInitParam("cdm_auto_catchup") == 1) {
 247                         debug("starting CDM watchdog");
 248                         _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 5000);
 249                         _cdm_wd_vishist = new Array();
 250                 } else {
 251                         debug("not in CDM mode or watchdog disabled");
 252                 }
 253
 254                 _feed_cur_page = feed_cur_page;
 255                 _infscroll_request_sent = 0;
 256
 257                 notify("");
 258
 259                 remove_splash();
 260
 261         } catch (e) {
 262                 exception_error("headlines_callback2", e, transport);
 263         }
 264 }
 265
 266 function render_article(article) {
 267         try {
 268                 var f = $("content-frame");
 269                 try {
 270                         f.scrollTop = 0;
 271                 } catch (e) { };
 272
 273                 var fi = $("content-insert");
 274
 275                 try {
 276                         fi.scrollTop = 0;
 277                 } catch (e) { };
 278
 279                 fi.innerHTML = article;
 280
 281                 article.evalScripts();
 282
 283         } catch (e) {
 284                 exception_error("render_article", e);
 285         }
 286 }
 287
 288 function showArticleInHeadlines(id) {
 289
 290         try {
 291
 292                 cleanSelected("headlinesList");
 293
 294                 var crow = $("RROW-" + id);
 295
 296                 if (!crow) return;
 297
 298                 var article_is_unread = crow.className.match("Unread");
 299
 300                 crow.className = crow.className.replace("Unread", "");
 301
 302                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
 303
 304                 var upd_img_pic = $("FUPDPIC-" + id);
 305
 306                 var cache_prefix = "";
 307
 308                 if (activeFeedIsCat()) {
 309                         cache_prefix = "C:";
 310                 } else {
 311                         cache_prefix = "F:";
 312                 }
 313
 314                 var view_mode = false;
 315
 316                 try {
 317                         view_mode = document.forms['main_toolbar_form'].view_mode;
 318                         view_mode = view_mode[view_mode.selectedIndex].value;
 319                 } catch (e) {
 320                         //
 321                 }
 322
 323                 if (upd_img_pic && (upd_img_pic.src.match("updated.png") ||
 324                                         upd_img_pic.src.match("fresh_sign.png"))) {
 325
 326                         upd_img_pic.src = "images/blank_icon.gif";
 327
 328                         cache_invalidate(cache_prefix + getActiveFeedId());
 329
 330                         cache_inject(cache_prefix + getActiveFeedId(),
 331                                 $("headlines-frame").innerHTML,
 332                                 get_feed_unread(getActiveFeedId()));
 333
 334                 } else if (article_is_unread && view_mode == "all_articles") {
 335
 336                         cache_invalidate(cache_prefix + getActiveFeedId());
 337
 338                         cache_inject(cache_prefix + getActiveFeedId(),
 339                                 $("headlines-frame").innerHTML,
 340                                 get_feed_unread(getActiveFeedId())-1);
 341
 342                 } else if (article_is_unread) {
 343                         cache_invalidate(cache_prefix + getActiveFeedId());
 344                 }
 345
 346                 markHeadline(id);
 347
 348         } catch (e) {
 349                 exception_error("showArticleInHeadlines", e);
 350         }
 351 }
 352
 353 function article_callback2(transport, id, feed_id) {
 354         try {
 355                 debug("article_callback2 " + id);
 356
 357                 if (!transport.responseText && db) {
 358                         offlineConfirmModeChange();
 359                         return;
 360                 }
 361
 362                 if (transport.responseXML) {
 363
 364                         if (!transport_error_check(transport)) return;
 365
 366                         debug("looking for articles to cache...");
 367
 368                         var articles = transport.responseXML.getElementsByTagName("article");
 369
 370                         for (var i = 0; i < articles.length; i++) {
 371                                 var a_id = articles[i].getAttribute("id");
 372
 373                                 debug("found id: " + a_id);
 374
 375                                 if (a_id == active_post_id) {
 376                                         debug("active article, rendering...");
 377                                         render_article(articles[i].firstChild.nodeValue);
 378                                 }
 379
 380                                 cache_inject(a_id, articles[i].firstChild.nodeValue);
 381                         }
 382
 383                         if (id != last_requested_article) {
 384                                 debug("requested article id is out of sequence, aborting");
 385                                 return;
 386                         }
 387
 388                         active_real_feed_id = feed_id;
 389                         active_post_id = id;
 390
 391                         showArticleInHeadlines(id);
 392
 393                         if (db) {
 394                                 db.execute("UPDATE articles SET unread = 0 WHERE id = ?", [id]);
 395                         }
 396
 397                         var reply = transport.responseXML.firstChild.firstChild;
 398
 399                 } else {
 400                         debug("article_callback: returned no XML object");
 401                         //var f = $("content-frame");
 402                         //f.innerHTML = "<div class='whiteBox'>" + __('Could not display article (missing XML object)') + "</div>";
 403                 }
 404
 405                 var date = new Date();
 406                 last_article_view = date.getTime() / 1000;
 407
 408                 if (typeof correctPNG != 'undefined') {
 409                         correctPNG();
 410                 }
 411
 412                 if (_reload_feedlist_after_view) {
 413                         setTimeout('updateFeedList(false, false)', 50);
 414                         _reload_feedlist_after_view = false;
 415                 } else {
 416                         if (transport.responseXML) {
 417                                 var counters = transport.responseXML.getElementsByTagName("counters")[0];
 418
 419                                 if (counters) {
 420                                         debug("parsing piggybacked counters: " + counters);
 421                                         parse_counters(counters, false);
 422                                 } else {
 423                                         debug("counters container not found in reply, requesting...");
 424                                         request_counters();
 425                                 }
 426                         }
 427                 }
 428
 429                 notify("");
 430         } catch (e) {
 431                 exception_error("article_callback2", e, transport);
 432         }
 433 }
 434
 435 function view(id, feed_id, skip_history) {
 436
 437         try {
 438                 debug("loading article: " + id + "/" + feed_id);
 439
 440                 if (offline_mode) return view_offline(id, feed_id);
 441
 442                 var cached_article = cache_find(id);
 443
 444                 debug("cache check result: " + (cached_article != false));
 445
 446                 enableHotkeys();
 447
 448                 //setActiveFeedId(feed_id);
 449
 450                 var query = "backend.php?op=view&id=" + param_escape(id) +
 451                         "&feed=" + param_escape(feed_id);
 452
 453                 var date = new Date();
 454
 455                 var neighbor_ids = getRelativePostIds(active_post_id);
 456
 457                 /* only request uncached articles */
 458
 459                 var cids_to_request = Array();
 460
 461                 for (var i = 0; i < neighbor_ids.length; i++) {
 462                         if (!cache_check(neighbor_ids[i])) {
 463                                 cids_to_request.push(neighbor_ids[i]);
 464                         }
 465                 }
 466
 467                 debug("additional ids: " + cids_to_request.toString());
 468
 469                 /* additional info for piggyback counters */
 470
 471                 if (tagsAreDisplayed()) {
 472                         query = query + "&omode=lt";
 473                 } else {
 474                         query = query + "&omode=flc";
 475                 }
 476
 477                 var date = new Date();
 478                 var timestamp = Math.round(date.getTime() / 1000);
 479                 query = query + "&ts=" + timestamp;
 480
 481                 query = query + "&cids=" + cids_to_request.toString();
 482
 483                 var crow = $("RROW-" + id);
 484                 var article_is_unread = crow.className.match("Unread");
 485
 486                 if (!async_counters_work) {
 487                         query = query + "&csync=true";
 488                 }
 489
 490                 showArticleInHeadlines(id);
 491
 492                 if (!cached_article) {
 493
 494                         notify_progress("Loading, please wait...", true);
 495
 496                 } else if (cached_article && article_is_unread) {
 497
 498                         query = query + "&mode=prefetch";
 499
 500                         render_article(cached_article);
 501
 502                 } else if (cached_article) {
 503
 504                         query = query + "&mode=prefetch_old";
 505                         render_article(cached_article);
 506
 507                 }
 508
 509                 cache_expire();
 510
 511                 last_requested_article = id;
 512
 513                 new Ajax.Request(query, {
 514                         onComplete: function(transport) {
 515                                 article_callback2(transport, id, feed_id);
 516                         } });
 517
 518                 return false;
 519
 520         } catch (e) {
 521                 exception_error("view", e);
 522         }
 523 }
 524
 525 function tMark(id) {
 526         return toggleMark(id);
 527 }
 528
 529 function tPub(id) {
 530         return togglePub(id);
 531 }
 532
 533 function tMark_afh_off(effect) {
 534         try {
 535                 var elem = effect.effects[0].element;
 536
 537                 debug("tMark_afh_off : " + elem.id);
 538
 539                 if (elem) {
 540                         elem.src = elem.src.replace("mark_set", "mark_unset");
 541                         elem.alt = __("Star article");
 542                         Element.show(elem);
 543                 }
 544
 545         } catch (e) {
 546                 exception_error("tMark_afh_off", e);
 547         }
 548 }
 549
 550 function tPub_afh_off(effect) {
 551         try {
 552                 var elem = effect.effects[0].element;
 553
 554                 debug("tPub_afh_off : " + elem.id);
 555
 556                 if (elem) {
 557                         elem.src = elem.src.replace("pub_set", "pub_unset");
 558                         elem.alt = __("Publish article");
 559                         Element.show(elem);
 560                 }
 561
 562         } catch (e) {
 563                 exception_error("tPub_afh_off", e);
 564         }
 565 }
 566
 567 function toggleMark(id, client_only, no_effects) {
 568
 569         try {
 570
 571                 var query = "backend.php?op=rpc&id=" + id + "&subop=mark";
 572
 573                 query = query + "&afid=" + getActiveFeedId();
 574
 575                 if (tagsAreDisplayed()) {
 576                         query = query + "&omode=tl";
 577                 } else {
 578                         query = query + "&omode=flc";
 579                 }
 580
 581                 var mark_img = $("FMPIC-" + id);
 582
 583                 if (!mark_img) return;
 584
 585                 var vfeedu = $("FEEDU--1");
 586                 var crow = $("RROW-" + id);
 587
 588                 if (mark_img.src.match("mark_unset")) {
 589                         mark_img.src = mark_img.src.replace("mark_unset", "mark_set");
 590                         mark_img.alt = __("Unstar article");
 591                         query = query + "&mark=1";
 592
 593                         if (db) {
 594                                 db.execute("UPDATE articles SET marked = 1 WHERE id = ?", [id]);
 595                         }
 596
 597                 } else {
 598                         //mark_img.src = "images/mark_unset.png";
 599                         mark_img.alt = __("Please wait...");
 600                         query = query + "&mark=0";
 601
 602                         if ($("headlinesList") && !no_effects) {
 603                                 Effect.Puff(mark_img, {duration : 0.25, afterFinish: tMark_afh_off});
 604                         } else {
 605                                 mark_img.src = mark_img.src.replace("mark_set", "mark_unset");
 606                                 mark_img.alt = __("Star article");
 607                         }
 608
 609                         if (db) {
 610                                 db.execute("UPDATE articles SET marked = 0 WHERE id = ?", [id]);
 611                         }
 612
 613                 }
 614
 615                 if (!no_effects) update_local_feedlist_counters();
 616
 617                 if (!client_only) {
 618                         debug(query);
 619
 620                         new Ajax.Request(query, {
 621                                 onComplete: function(transport) {
 622                                         all_counters_callback2(transport);
 623                                 } });
 624
 625                 }
 626
 627         } catch (e) {
 628                 exception_error("toggleMark", e);
 629         }
 630 }
 631
 632 function togglePub(id, client_only, no_effects, note) {
 633
 634         try {
 635
 636                 var query = "backend.php?op=rpc&id=" + id + "&subop=publ";
 637
 638                 query = query + "&afid=" + getActiveFeedId();
 639
 640                 if (note != undefined) {
 641                         query = query + "&note=" + param_escape(note);
 642                 } else {
 643                         query = query + "&note=undefined";
 644                 }
 645
 646                 if (tagsAreDisplayed()) {
 647                         query = query + "&omode=tl";
 648                 } else {
 649                         query = query + "&omode=flc";
 650                 }
 651
 652                 var mark_img = $("FPPIC-" + id);
 653
 654                 if (!mark_img) return;
 655
 656                 var vfeedu = $("FEEDU--2");
 657                 var crow = $("RROW-" + id);
 658
 659                 if (mark_img.src.match("pub_unset") || note != undefined) {
 660                         mark_img.src = mark_img.src.replace("pub_unset", "pub_set");
 661                         mark_img.alt = __("Unpublish article");
 662                         query = query + "&pub=1";
 663
 664                 } else {
 665                         //mark_img.src = "images/pub_unset.png";
 666                         mark_img.alt = __("Please wait...");
 667                         query = query + "&pub=0";
 668
 669                         if ($("headlinesList") && !no_effects) {
 670                                 Effect.Puff(mark_img, {duration : 0.25, afterFinish: tPub_afh_off});
 671                         } else {
 672                                 mark_img.src = mark_img.src.replace("pub_set", "pub_unset");
 673                                 mark_img.alt = __("Publish article");
 674                         }
 675                 }
 676
 677                 if (!client_only) {
 678                         new Ajax.Request(query, {
 679                                 onComplete: function(transport) {
 680                                         toggle_published_callback(transport);
 681                                 } });
 682                 }
 683
 684         } catch (e) {
 685
 686                 exception_error("togglePub", e);
 687         }
 688 }
 689
 690 function correctHeadlinesOffset(id) {
 691
 692         try {
 693
 694                 var hlist = $("headlinesList");
 695                 var container = $("headlinesInnerContainer");
 696                 var row = $("RROW-" + id);
 697
 698                 var viewport = container.offsetHeight;
 699
 700                 var rel_offset_top = row.offsetTop - container.scrollTop;
 701                 var rel_offset_bottom = row.offsetTop + row.offsetHeight - container.scrollTop;
 702
 703                 debug("Rtop: " + rel_offset_top + " Rbtm: " + rel_offset_bottom);
 704                 debug("Vport: " + viewport);
 705
 706                 if (rel_offset_top <= 0 || rel_offset_top > viewport) {
 707                         container.scrollTop = row.offsetTop;
 708                 } else if (rel_offset_bottom > viewport) {
 709
 710                         /* doesn't properly work with Opera in some cases because
 711                                 Opera fucks up element scrolling */
 712
 713                         container.scrollTop = row.offsetTop + row.offsetHeight - viewport;
 714                 }
 715
 716         } catch (e) {
 717                 exception_error("correctHeadlinesOffset", e);
 718         }
 719
 720 }
 721
 722 function moveToPost(mode) {
 723
 724         try {
 725
 726                 var rows;
 727
 728                 if (isCdmMode()) {
 729                         rows = cdmGetVisibleArticles();
 730                 } else {
 731                         rows = getVisibleHeadlineIds();
 732                 }
 733
 734                 var prev_id = false;
 735                 var next_id = false;
 736
 737                 if (!$('RROW-' + active_post_id)) {
 738                         active_post_id = false;
 739                 }
 740
 741                 if (active_post_id == false) {
 742                         next_id = getFirstVisibleHeadlineId();
 743                         prev_id = getLastVisibleHeadlineId();
 744                 } else {
 745                         for (var i = 0; i < rows.length; i++) {
 746                                 if (rows[i] == active_post_id) {
 747                                         prev_id = rows[i-1];
 748                                         next_id = rows[i+1];
 749                                 }
 750                         }
 751                 }
 752
 753                 if (mode == "next") {
 754                         if (next_id) {
 755                                 if (isCdmMode()) {
 756
 757                                         if (!cdmArticleIsActuallyVisible(next_id)) {
 758                                                 cdmScrollToArticleId(next_id);
 759                                         }
 760                                         cdmSelectArticles("none");
 761                                         toggleUnread(next_id, 0, true);
 762                                         toggleSelected(next_id);
 763
 764                                 } else {
 765                                         correctHeadlinesOffset(next_id);
 766                                         view(next_id, getActiveFeedId());
 767                                 }
 768                         }
 769                 }
 770
 771                 if (mode == "prev") {
 772                         if (prev_id) {
 773                                 if (isCdmMode()) {
 774                                         cdmScrollToArticleId(prev_id);
 775                                         cdmSelectArticles("none");
 776                                         toggleUnread(prev_id, 0, true);
 777                                         toggleSelected(prev_id);
 778                                 } else {
 779                                         correctHeadlinesOffset(prev_id);
 780                                         view(prev_id, getActiveFeedId());
 781                                 }
 782                         }
 783                 }
 784
 785         } catch (e) {
 786                 exception_error("moveToPost", e);
 787         }
 788 }
 789
 790 function toggleSelected(id) {
 791         try {
 792
 793                 var cb = $("RCHK-" + id);
 794
 795                 var row = $("RROW-" + id);
 796                 if (row) {
 797                         var nc = row.className;
 798
 799                         if (!nc.match("Selected")) {
 800                                 nc = nc + "Selected";
 801                                 if (cb) {
 802                                         cb.checked = true;
 803                                 }
 804
 805                                 // In CDM basically last selected article == active article
 806                                 if (isCdmMode()) active_post_id = id;
 807                         } else {
 808                                 nc = nc.replace("Selected", "");
 809                                 if (cb) {
 810                                         cb.checked = false;
 811                                 }
 812
 813                         }
 814
 815                         row.className = nc;
 816                 }
 817         } catch (e) {
 818                 exception_error("toggleSelected", e);
 819         }
 820 }
 821
 822 function toggleUnread_afh(effect) {
 823         try {
 824
 825                 var elem = effect.element;
 826                 elem.style.backgroundColor = "";
 827
 828         } catch (e) {
 829                 exception_error("toggleUnread_afh", e);
 830         }
 831 }
 832
 833 function toggleUnread(id, cmode, effect) {
 834         try {
 835
 836                 var row = $("RROW-" + id);
 837                 if (row) {
 838                         var nc = row.className;
 839                         var is_selected = row.className.match("Selected");
 840                         nc = nc.replace("Unread", "");
 841                         nc = nc.replace("Selected", "");
 842
 843                         // since we are removing selection from the object, uncheck
 844                         // corresponding checkbox
 845
 846                         var cb = $("RCHK-" + id);
 847                         if (cb) {
 848                                 cb.checked = false;
 849                         }
 850
 851                         // NOTE: I'm not sure that resetting selection here is a feature -fox
 852
 853                         if (cmode == undefined || cmode == 2) {
 854                                 if (row.className.match("Unread")) {
 855                                         row.className = nc;
 856
 857                                         if (effect) {
 858                                                 new Effect.Highlight(row, {duration: 1, startcolor: "#fff7d5",
 859                                                         afterFinish: toggleUnread_afh,
 860                                                         queue: { position:'end', scope: 'TMRQ-' + id, limit: 1 } } );
 861                                         }
 862
 863                                 } else {
 864                                         row.className = nc + "Unread";
 865                                 }
 866
 867                                 if (db) {
 868                                         db.execute("UPDATE articles SET unread = not unread "+
 869                                                 "WHERE id = ?", [id]);
 870                                 }
 871
 872                         } else if (cmode == 0) {
 873                                 row.className = nc;
 874
 875                                 if (effect) {
 876                                         new Effect.Highlight(row, {duration: 1, startcolor: "#fff7d5",
 877                                                 afterFinish: toggleUnread_afh,
 878                                                 queue: { position:'end', scope: 'TMRQ-' + id, limit: 1 } } );
 879                                 }
 880
 881                                 if (db) {
 882                                         db.execute("UPDATE articles SET unread = 0 "+
 883                                                 "WHERE id = ?", [id]);
 884                                 }
 885
 886                         } else if (cmode == 1) {
 887                                 row.className = nc + "Unread";
 888
 889                                 if (db) {
 890                                         db.execute("UPDATE articles SET unread = 1 "+
 891                                                 "WHERE id = ?", [id]);
 892                                 }
 893
 894                         }
 895
 896                         update_local_feedlist_counters();
 897
 898                         // Disable unmarking as selected for the time being (16.05.08) -fox
 899                         if (is_selected) row.className = row.className + "Selected";
 900
 901                         if (cmode == undefined) cmode = 2;
 902
 903                         var query = "backend.php?op=rpc&subop=catchupSelected" +
 904                                 "&cmode=" + param_escape(cmode);
 905
 906                         var ids = "?ids=" + param_escape(id);
 907
 908 //                      notify_progress("Loading, please wait...");
 909
 910                         new Ajax.Request(query, {
 911                                 parameters: ids,
 912                                 onComplete: function(transport) {
 913                                         all_counters_callback2(transport);
 914                                 } });
 915
 916                 }
 917
 918         } catch (e) {
 919                 exception_error("toggleUnread", e);
 920         }
 921 }
 922
 923 function selectionRemoveLabel(id) {
 924         try {
 925
 926                 var ids = getSelectedArticleIds2();
 927
 928                 if (ids.length == 0) {
 929                         alert(__("No articles are selected."));
 930                         return;
 931                 }
 932
 933 //              var ok = confirm(__("Remove selected articles from label?"));
 934
 935 //              if (ok) {
 936
 937                         var query = "backend.php?op=rpc&subop=removeFromLabel&ids=" +
 938                                 param_escape(ids.toString()) + "&lid=" + param_escape(id);
 939
 940 //                      notify_progress("Loading, please wait...");
 941
 942                         cache_invalidate("F:" + (-11 - id));
 943
 944                         new Ajax.Request(query, {
 945                                 onComplete: function(transport) {
 946                                         show_labels_in_headlines(transport);
 947                                         all_counters_callback2(transport);
 948                                 } });
 949
 950 //              }
 951
 952         } catch (e) {
 953                 exception_error("selectionAssignLabel", e);
 954
 955         }
 956 }
 957
 958 function selectionAssignLabel(id) {
 959         try {
 960
 961                 var ids = getSelectedArticleIds2();
 962
 963                 if (ids.length == 0) {
 964                         alert(__("No articles are selected."));
 965                         return;
 966                 }
 967
 968 //              var ok = confirm(__("Assign selected articles to label?"));
 969
 970 //              if (ok) {
 971
 972                         cache_invalidate("F:" + (-11 - id));
 973
 974                         var query = "backend.php?op=rpc&subop=assignToLabel&ids=" +
 975                                 param_escape(ids.toString()) + "&lid=" + param_escape(id);
 976
 977 //                      notify_progress("Loading, please wait...");
 978
 979                         new Ajax.Request(query, {
 980                                 onComplete: function(transport) {
 981                                         show_labels_in_headlines(transport);
 982                                         all_counters_callback2(transport);
 983                                 } });
 984
 985 //              }
 986
 987         } catch (e) {
 988                 exception_error("selectionAssignLabel", e);
 989
 990         }
 991 }
 992
 993 function selectionToggleUnread(cdm_mode, set_state, callback_func, no_error) {
 994         try {
 995                 var rows;
 996
 997                 if (cdm_mode) {
 998                         rows = cdmGetSelectedArticles();
 999                 } else {
1000                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1001                 }
1002
1003                 if (rows.length == 0 && !no_error) {
1004                         alert(__("No articles are selected."));
1005                         return;
1006                 }
1007
1008                 for (i = 0; i < rows.length; i++) {
1009                         var row = $("RROW-" + rows[i]);
1010                         if (row) {
1011                                 var nc = row.className;
1012                                 nc = nc.replace("Unread", "");
1013                                 nc = nc.replace("Selected", "");
1014
1015                                 if (set_state == undefined) {
1016                                         if (row.className.match("Unread")) {
1017                                                 row.className = nc + "Selected";
1018                                         } else {
1019                                                 row.className = nc + "UnreadSelected";
1020                                         }
1021                                         if (db) {
1022                                                 db.execute("UPDATE articles SET unread = NOT unread WHERE id = ?",
1023                                                         [rows[i]]);
1024                                         }
1025                                 }
1026
1027                                 if (set_state == false) {
1028                                         row.className = nc + "Selected";
1029                                         if (db) {
1030                                                 db.execute("UPDATE articles SET unread = 0 WHERE id = ?",
1031                                                         [rows[i]]);
1032                                         }
1033                                 }
1034
1035                                 if (set_state == true) {
1036                                         row.className = nc + "UnreadSelected";
1037                                         if (db) {
1038                                                 db.execute("UPDATE articles SET unread = 1 WHERE id = ?",
1039                                                         [rows[i]]);
1040                                         }
1041                                 }
1042                         }
1043                 }
1044
1045                 if (rows.length > 0) {
1046
1047                         update_local_feedlist_counters();
1048
1049                         var cmode = "";
1050
1051                         if (set_state == undefined) {
1052                                 cmode = "2";
1053                         } else if (set_state == true) {
1054                                 cmode = "1";
1055                         } else if (set_state == false) {
1056                                 cmode = "0";
1057                         }
1058
1059                         var query = "backend.php?op=rpc&subop=catchupSelected" +
1060                                 "&cmode=" + cmode;
1061
1062                         var ids = "?ids=" + param_escape(rows.toString());
1063
1064                         notify_progress("Loading, please wait...");
1065
1066                         new Ajax.Request(query, {
1067                                 parameters: ids,
1068                                 onComplete: function(transport) {
1069                                         catchup_callback2(transport, callback_func);
1070                                 } });
1071
1072                 }
1073
1074         } catch (e) {
1075                 exception_error("selectionToggleUnread", e);
1076         }
1077 }
1078
1079 function selectionToggleMarked(cdm_mode) {
1080         try {
1081
1082                 var rows;
1083
1084                 if (cdm_mode) {
1085                         rows = cdmGetSelectedArticles();
1086                 } else {
1087                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1088                 }
1089
1090                 if (rows.length == 0) {
1091                         alert(__("No articles are selected."));
1092                         return;
1093                 }
1094
1095                 for (i = 0; i < rows.length; i++) {
1096                         toggleMark(rows[i], true, true);
1097                 }
1098
1099                 update_local_feedlist_counters();
1100
1101                 if (rows.length > 0) {
1102
1103                         var query = "backend.php?op=rpc&subop=markSelected&ids=" +
1104                                 param_escape(rows.toString()) + "&cmode=2";
1105
1106                         query = query + "&afid=" + getActiveFeedId();
1107
1108 /*                      if (tagsAreDisplayed()) {
1109                                 query = query + "&omode=tl";
1110                         } else {
1111                                 query = query + "&omode=flc";
1112                         } */
1113
1114                         query = query + "&omode=lc";
1115
1116                         new Ajax.Request(query, {
1117                                 onComplete: function(transport) {
1118                                         all_counters_callback2(transport);
1119                                 } });
1120
1121                 }
1122
1123         } catch (e) {
1124                 exception_error("selectionToggleMarked", e);
1125         }
1126 }
1127
1128 function selectionTogglePublished(cdm_mode) {
1129         try {
1130
1131                 var rows;
1132
1133                 if (cdm_mode) {
1134                         rows = cdmGetSelectedArticles();
1135                 } else {
1136                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1137                 }
1138
1139                 if (rows.length == 0) {
1140                         alert(__("No articles are selected."));
1141                         return;
1142                 }
1143
1144                 for (i = 0; i < rows.length; i++) {
1145                         togglePub(rows[i], true, true);
1146                 }
1147
1148                 if (rows.length > 0) {
1149
1150                         var query = "backend.php?op=rpc&subop=publishSelected&ids=" +
1151                                 param_escape(rows.toString()) + "&cmode=2";
1152
1153                         query = query + "&afid=" + getActiveFeedId();
1154
1155 /*                      if (tagsAreDisplayed()) {
1156                                 query = query + "&omode=tl";
1157                         } else {
1158                                 query = query + "&omode=flc";
1159                         } */
1160
1161                         query = query + "&omode=lc";
1162
1163                         new Ajax.Request(query, {
1164                                 onComplete: function(transport) {
1165                                         all_counters_callback2(transport);
1166                                 } });
1167
1168                 }
1169
1170         } catch (e) {
1171                 exception_error("selectionToggleMarked", e);
1172         }
1173 }
1174
1175 function cdmGetSelectedArticles() {
1176         var sel_articles = new Array();
1177         var container = $("headlinesInnerContainer");
1178
1179         for (i = 0; i < container.childNodes.length; i++) {
1180                 var child = container.childNodes[i];
1181
1182                 if (child.id && child.id.match("RROW-") && child.className.match("Selected")) {
1183                         var c_id = child.id.replace("RROW-", "");
1184                         sel_articles.push(c_id);
1185                 }
1186         }
1187
1188         return sel_articles;
1189 }
1190
1191 function cdmGetVisibleArticles() {
1192         var sel_articles = new Array();
1193         var container = $("headlinesInnerContainer");
1194
1195         if (!container) return sel_articles;
1196
1197         for (i = 0; i < container.childNodes.length; i++) {
1198                 var child = container.childNodes[i];
1199
1200                 if (child.id && child.id.match("RROW-")) {
1201                         var c_id = child.id.replace("RROW-", "");
1202                         sel_articles.push(c_id);
1203                 }
1204         }
1205
1206         return sel_articles;
1207 }
1208
1209 function cdmGetUnreadArticles() {
1210         var sel_articles = new Array();
1211         var container = $("headlinesInnerContainer");
1212
1213         for (i = 0; i < container.childNodes.length; i++) {
1214                 var child = container.childNodes[i];
1215
1216                 if (child.id && child.id.match("RROW-") && child.className.match("Unread")) {
1217                         var c_id = child.id.replace("RROW-", "");
1218                         sel_articles.push(c_id);
1219                 }
1220         }
1221
1222         return sel_articles;
1223 }
1224
1225
1226 // mode = all,none,unread
1227 function cdmSelectArticles(mode) {
1228         var container = $("headlinesInnerContainer");
1229
1230         for (i = 0; i < container.childNodes.length; i++) {
1231                 var child = container.childNodes[i];
1232
1233                 if (child.id && child.id.match("RROW-")) {
1234                         var aid = child.id.replace("RROW-", "");
1235
1236                         var cb = $("RCHK-" + aid);
1237
1238                         if (mode == "all") {
1239                                 if (!child.className.match("Selected")) {
1240                                         child.className = child.className + "Selected";
1241                                         cb.checked = true;
1242                                 }
1243                         } else if (mode == "unread") {
1244                                 if (child.className.match("Unread") && !child.className.match("Selected")) {
1245                                         child.className = child.className + "Selected";
1246                                         cb.checked = true;
1247                                 }
1248                         } else {
1249                                 child.className = child.className.replace("Selected", "");
1250                                 cb.checked = false;
1251                         }
1252                 }
1253         }
1254 }
1255
1256 function catchupPage() {
1257
1258         var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
1259
1260         var str = __("Mark all visible articles in %s as read?");
1261
1262         str = str.replace("%s", fn);
1263
1264         if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1265                 return;
1266         }
1267
1268         if ($("headlinesList")) {
1269                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, 'Unread', true);
1270                 selectionToggleUnread(false, false, 'viewCurrentFeed()', true);
1271                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
1272         } else {
1273                 cdmSelectArticles('all');
1274                 selectionToggleUnread(true, false, 'viewCurrentFeed()', true)
1275                 cdmSelectArticles('none');
1276         }
1277 }
1278
1279 function catchupSelection() {
1280
1281         try {
1282
1283                 var rows;
1284
1285                 if ($("headlinesList")) {
1286                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1287                 } else {
1288                         rows = cdmGetSelectedArticles();
1289                 }
1290
1291                 if (rows.length == 0) {
1292                         alert(__("No articles are selected."));
1293                         return;
1294                 }
1295
1296
1297                 var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
1298
1299                 var str = __("Mark %d selected articles in %s as read?");
1300
1301                 str = str.replace("%d", rows.length);
1302                 str = str.replace("%s", fn);
1303
1304                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1305                         return;
1306                 }
1307
1308                 if ($("headlinesList")) {
1309                         selectionToggleUnread(false, false, 'viewCurrentFeed()', true);
1310         //              selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
1311                 } else {
1312                         selectionToggleUnread(true, false, 'viewCurrentFeed()', true)
1313         //              cdmSelectArticles('none');
1314                 }
1315
1316         } catch (e) {
1317                 exception_error("catchupSelection", e);
1318         }
1319 }
1320
1321 function editArticleTags(id, feed_id, cdm_enabled) {
1322         displayDlg('editArticleTags', id);
1323 }
1324
1325
1326 function tag_saved_callback(transport) {
1327         try {
1328                 debug("in tag_saved_callback");
1329
1330                 closeInfoBox();
1331                 notify("");
1332
1333                 if (tagsAreDisplayed()) {
1334                         _reload_feedlist_after_view = true;
1335                 }
1336
1337
1338                 if (transport.responseXML) {
1339                         var tags_str = transport.responseXML.getElementsByTagName("tags-str")[0];
1340
1341                         if (tags_str) {
1342                                 var id = tags_str.getAttribute("id");
1343
1344                                 if (id) {
1345                                         var tags = $("ATSTR-" + id);
1346                                         if (tags) {
1347                                                 tags.innerHTML = tags_str.firstChild.nodeValue;
1348                                         }
1349                                 }
1350                         }
1351                 }
1352
1353         } catch (e) {
1354                 exception_error("tag_saved_callback", e);
1355         }
1356 }
1357
1358 function editTagsSave() {
1359
1360         notify_progress("Saving article tags...");
1361
1362         var form = document.forms["tag_edit_form"];
1363
1364         var query = Form.serialize("tag_edit_form");
1365
1366         query = "backend.php?op=rpc&subop=setArticleTags&" + query;
1367
1368         debug(query);
1369
1370         new Ajax.Request(query, {
1371                 onComplete: function(transport) {
1372                                 tag_saved_callback(transport);
1373                         } });
1374
1375 }
1376
1377 function editTagsInsert() {
1378         try {
1379
1380                 var form = document.forms["tag_edit_form"];
1381
1382                 var found_tags = form.found_tags;
1383                 var tags_str = form.tags_str;
1384
1385                 var tag = found_tags[found_tags.selectedIndex].value;
1386
1387                 if (tags_str.value.length > 0 &&
1388                                 tags_str.value.lastIndexOf(", ") != tags_str.value.length - 2) {
1389
1390                         tags_str.value = tags_str.value + ", ";
1391                 }
1392
1393                 tags_str.value = tags_str.value + tag + ", ";
1394
1395                 found_tags.selectedIndex = 0;
1396
1397         } catch (e) {
1398                 exception_error("editTagsInsert", e);
1399         }
1400 }
1401
1402 function cdmScrollViewport(where) {
1403         debug("cdmScrollViewport: " + where);
1404
1405         var ctr = $("headlinesInnerContainer");
1406
1407         if (!ctr) return;
1408
1409         if (where == "bottom") {
1410                 ctr.scrollTop = ctr.scrollHeight;
1411         } else {
1412                 ctr.scrollTop = where;
1413         }
1414 }
1415
1416 function cdmArticleIsBelowViewport(id) {
1417         try {
1418                 var ctr = $("headlinesInnerContainer");
1419                 var e = $("RROW-" + id);
1420
1421                 if (!e || !ctr) return;
1422
1423                 // article starts below viewport
1424
1425                 if (ctr.scrollTop < e.offsetTop) {
1426                         return true;
1427                 } else {
1428                         return false;
1429                 }
1430
1431         } catch (e) {
1432                 exception_error("cdmArticleIsVisible", e);
1433         }
1434 }
1435
1436 function cdmArticleIsAboveViewport(id) {
1437         try {
1438                 var ctr = $("headlinesInnerContainer");
1439                 var e = $("RROW-" + id);
1440
1441                 if (!e || !ctr) return;
1442
1443                 // article starts above viewport
1444
1445                 if (ctr.scrollTop > e.offsetTop + e.offsetHeight) {
1446                         return true;
1447                 } else {
1448                         return false;
1449                 }
1450
1451         } catch (e) {
1452                 exception_error("cdmArticleIsVisible", e);
1453         }
1454 }
1455
1456 function cdmScrollToArticleId(id) {
1457         try {
1458                 var ctr = $("headlinesInnerContainer");
1459                 var e = $("RROW-" + id);
1460
1461                 if (!e || !ctr) return;
1462
1463                 ctr.scrollTop = e.offsetTop;
1464
1465         } catch (e) {
1466                 exception_error("cdmScrollToArticleId", e);
1467         }
1468 }
1469
1470 function cdmArticleIsActuallyVisible(id) {
1471         try {
1472                 var ctr = $("headlinesInnerContainer");
1473                 var e = $("RROW-" + id);
1474
1475                 if (!e || !ctr) return;
1476
1477                 // article fits in viewport OR article is longer than viewport and
1478                 // its bottom is visible
1479
1480                 if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <=
1481                                 ctr.scrollTop + ctr.offsetHeight) {
1482
1483                         return true;
1484
1485                 } else if (e.offsetHeight > ctr.offsetHeight &&
1486                                 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1487                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
1488
1489                         return true;
1490
1491                 }
1492
1493                 return false;
1494
1495         } catch (e) {
1496                 exception_error("cdmArticleIsVisible", e);
1497         }
1498 }
1499
1500 function cdmWatchdog() {
1501
1502         try {
1503
1504                 var ctr = $("headlinesInnerContainer");
1505
1506                 if (!ctr) return;
1507
1508                 var ids = new Array();
1509
1510                 var e = ctr.firstChild;
1511
1512                 while (e) {
1513                         if (e.className && e.className == "cdmArticleUnread" && e.id &&
1514                                         e.id.match("RROW-")) {
1515
1516                                 // article fits in viewport OR article is longer than viewport and
1517                                 // its bottom is visible
1518
1519                                 if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <=
1520                                                 ctr.scrollTop + ctr.offsetHeight) {
1521
1522 //                                      debug(e.id + " is visible " + e.offsetTop + "." +
1523 //                                              (e.offsetTop + e.offsetHeight) + " vs " + ctr.scrollTop + "." +
1524 //                                              (ctr.scrollTop + ctr.offsetHeight));
1525
1526                                         ids.push(e.id.replace("RROW-", ""));
1527
1528                                 } else if (e.offsetHeight > ctr.offsetHeight &&
1529                                                 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1530                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
1531
1532                                         ids.push(e.id.replace("RROW-", ""));
1533
1534                                 }
1535
1536                                 // method 2: article bottom is visible and is in upper 1/2 of the viewport
1537
1538 /*                              if (e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1539                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight/2) {
1540
1541                                         ids.push(e.id.replace("RROW-", ""));
1542
1543                                 } */
1544
1545                         }
1546
1547                         e = e.nextSibling;
1548                 }
1549
1550                 debug("cdmWatchdog, ids= " + ids.toString());
1551
1552                 if (ids.length > 0) {
1553
1554                         for (var i = 0; i < ids.length; i++) {
1555                                 var e = $("RROW-" + ids[i]);
1556                                 if (e) {
1557                                         e.className = e.className.replace("Unread", "");
1558                                 }
1559                         }
1560
1561                         var query = "backend.php?op=rpc&subop=catchupSelected" +
1562                                 "&cmode=0";
1563
1564                         var ids = "?ids=" + param_escape(ids.toString());
1565
1566                         new Ajax.Request(query, {
1567                                 parameters: ids,
1568                                 onComplete: function(transport) {
1569                                         all_counters_callback2(transport);
1570                                 } });
1571
1572                 }
1573
1574                 _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 4000);
1575
1576         } catch (e) {
1577                 exception_error("cdmWatchdog", e);
1578         }
1579
1580 }
1581
1582
1583 function cache_inject(id, article, param) {
1584         try {
1585                 if (!cache_check_param(id, param)) {
1586                         debug("cache_article: miss: " + id + " [p=" + param + "]");
1587
1588
1589                         if (db) {
1590
1591                            var date = new Date();
1592                       var ts = Math.round(date.getTime() / 1000);
1593
1594                                 db.execute("INSERT INTO cache (id, article, param, added) VALUES (?, ?, ?, ?)",
1595                                         [id, article, param, ts]);
1596                         } else {
1597
1598                                 var cache_obj = new Array();
1599
1600                                 cache_obj["id"] = id;
1601                                 cache_obj["data"] = article;
1602                                 cache_obj["param"] = param;
1603
1604                                 article_cache.push(cache_obj);
1605                         }
1606
1607                 } else {
1608                         debug("cache_article: hit: " + id + " [p=" + param + "]");
1609                 }
1610         } catch (e) {
1611                 exception_error("cache_inject", e);
1612         }
1613 }
1614
1615 function cache_find(id) {
1616
1617         if (db) {
1618                 var rs = db.execute("SELECT article FROM cache WHERE id = ?", [id]);
1619                 var a = false;
1620
1621                 if (rs.isValidRow()) {
1622                         var a = rs.field(0);
1623                 }
1624
1625                 rs.close();
1626
1627                 return a;
1628
1629         } else {
1630                 for (var i = 0; i < article_cache.length; i++) {
1631                         if (article_cache[i]["id"] == id) {
1632                                 return article_cache[i]["data"];
1633                         }
1634                 }
1635         }
1636         return false;
1637 }
1638
1639 function cache_find_param(id, param) {
1640
1641         if (db) {
1642                 var rs = db.execute("SELECT article FROM cache WHERE id = ? AND param = ?",
1643                         [id, param]);
1644                 var a = false;
1645
1646                 if (rs.isValidRow()) {
1647                         a = rs.field(0);
1648                 }
1649
1650                 rs.close();
1651
1652                 return a;
1653
1654         } else {
1655                 for (var i = 0; i < article_cache.length; i++) {
1656                         if (article_cache[i]["id"] == id && article_cache[i]["param"] == param) {
1657                                 return article_cache[i]["data"];
1658                         }
1659                 }
1660         }
1661         return false;
1662 }
1663
1664 function cache_check(id) {
1665
1666         if (db) {
1667                 var rs = db.execute("SELECT COUNT(*) AS c FROM cache WHERE id = ?",
1668                         [id]);
1669                 var a = false;
1670
1671                 if (rs.isValidRow()) {
1672                          a = rs.field(0) != "0";
1673                 }
1674
1675                 rs.close();
1676
1677                 return a;
1678
1679         } else {
1680                 for (var i = 0; i < article_cache.length; i++) {
1681                         if (article_cache[i]["id"] == id) {
1682                                 return true;
1683                         }
1684                 }
1685         }
1686         return false;
1687 }
1688
1689 function cache_check_param(id, param) {
1690
1691         if (db) {
1692                 var rs = db.execute("SELECT COUNT(*) AS c FROM cache WHERE id = ? AND param = ?",
1693                         [id, param]);
1694                 var a = false;
1695
1696                 if (rs.isValidRow()) {
1697                         a = rs.field(0) != "0";
1698                 }
1699
1700                 rs.close();
1701
1702                 return a;
1703
1704         } else {
1705                 for (var i = 0; i < article_cache.length; i++) {
1706                         if (article_cache[i]["id"] == id && article_cache[i]["param"] == param) {
1707                                 return true;
1708                         }
1709                 }
1710         }
1711         return false;
1712 }
1713
1714 function cache_expire() {
1715         if (db) {
1716                 var date = new Date();
1717                 var ts = Math.round(date.getTime() / 1000);
1718
1719                 db.execute("DELETE FROM cache WHERE added < ? - 1800 AND id LIKE 'FEEDLIST'", [ts]);
1720                 db.execute("DELETE FROM cache WHERE added < ? - 600 AND (id LIKE 'F:%' OR id LIKE 'C:%')", [ts]);
1721                 db.execute("DELETE FROM cache WHERE added < ? - 86400", [ts]);
1722
1723
1724         } else {
1725                 while (article_cache.length > 25) {
1726                         article_cache.shift();
1727                 }
1728         }
1729 }
1730
1731 function cache_empty() {
1732         article_cache = new Array();
1733 }
1734
1735 function cache_invalidate(id) {
1736         try {
1737
1738                 if (db) {
1739                         rs = db.execute("DELETE FROM cache WHERE id = ?", [id]);
1740                         return rs.rowsAffected != 0;
1741                 } else {
1742
1743                         var i = 0
1744
1745                         while (i < article_cache.length) {
1746                                 if (article_cache[i]["id"] == id) {
1747                                         debug("cache_invalidate: removed id " + id);
1748                                         article_cache.splice(i, 1);
1749                                         return true;
1750                                 }
1751                                 i++;
1752                         }
1753                 }
1754
1755                 debug("cache_invalidate: id not found: " + id);
1756                 return false;
1757         } catch (e) {
1758                 exception_error("cache_invalidate", e);
1759         }
1760 }
1761
1762 function getActiveArticleId() {
1763         return active_post_id;
1764 }
1765
1766 function cdmClicked(id) {
1767         try {
1768                 var elem = $("RROW-" + id);
1769
1770                 if (elem) {
1771                         var id = elem.id.replace("RROW-", "");
1772                         active_post_id = id;
1773
1774 //                      cdmSelectArticles("none");
1775                         toggleUnread(id, 0, true);
1776 //                      toggleSelected(id);
1777
1778                 }
1779         } catch (e) {
1780                 exception_error("cdmClicked", e);
1781         }
1782 }
1783
1784 function preload_article_callback(transport) {
1785         try {
1786                 if (transport.responseXML) {
1787                         var articles = transport.responseXML.getElementsByTagName("article");
1788
1789                         for (var i = 0; i < articles.length; i++) {
1790                                 var id = articles[i].getAttribute("id");
1791                                 if (!cache_check(id)) {
1792                                         cache_inject(id, articles[i].firstChild.nodeValue);
1793                                         debug("preloaded article: " + id);
1794                                 }
1795                         }
1796                 }
1797         } catch (e) {
1798                 exception_error("preload_article_callback", e);
1799         }
1800 }
1801
1802 function preloadArticleUnderPointer(id) {
1803         try {
1804                 if (getInitParam("bw_limit") == "1") return;
1805
1806                 if (post_under_pointer == id && !cache_check(id)) {
1807
1808                         debug("trying to preload article " + id);
1809
1810                         var neighbor_ids = getRelativePostIds(id, 1);
1811
1812                         /* only request uncached articles */
1813
1814                         var cids_to_request = Array();
1815
1816                         for (var i = 0; i < neighbor_ids.length; i++) {
1817                                 if (!cache_check(neighbor_ids[i])) {
1818                                         cids_to_request.push(neighbor_ids[i]);
1819                                 }
1820                         }
1821                         debug("additional ids: " + cids_to_request.toString());
1822
1823                         cids_to_request.push(id);
1824
1825                         var query = "backend.php?op=rpc&subop=getArticles&ids=" +
1826                                 cids_to_request.toString();
1827                         new Ajax.Request(query, {
1828                                 onComplete: function(transport) {
1829                                         preload_article_callback(transport);
1830                         } });
1831                 }
1832         } catch (e) {
1833                 exception_error("preloadArticleUnderPointer", e);
1834         }
1835 }
1836
1837 function postMouseIn(id) {
1838         try {
1839                 if (post_under_pointer != id) {
1840                         post_under_pointer = id;
1841                         if (!isCdmMode()) {
1842                                 window.setTimeout("preloadArticleUnderPointer(" + id + ")", 250);
1843                         }
1844                 }
1845
1846         } catch (e) {
1847                 exception_error("postMouseIn", e);
1848         }
1849 }
1850
1851 function postMouseOut(id) {
1852         try {
1853                 post_under_pointer = false;
1854         } catch (e) {
1855                 exception_error("postMouseOut", e);
1856         }
1857 }
1858
1859 function headlines_scroll_handler() {
1860         try {
1861
1862                 var e = $("headlinesInnerContainer");
1863
1864                 // don't do infinite scrolling when Limit == All
1865
1866                 var toolbar_form = document.forms["main_toolbar_form"];
1867
1868                 var limit = toolbar_form.limit[toolbar_form.limit.selectedIndex];
1869                 if (limit.value != 0) {
1870
1871                         debug((e.scrollTop + e.offsetHeight) + " vs " + e.scrollHeight + " dis? " +
1872                                 _infscroll_disable);
1873
1874                         if (e.scrollTop + e.offsetHeight > e.scrollHeight - 100) {
1875                                 if (!_infscroll_disable) {
1876                                         debug("more cowbell!");
1877                                         viewNextFeedPage();
1878                                 }
1879                         }
1880                 }
1881
1882         } catch (e) {
1883                 exception_error("headlines_scroll_handler", e);
1884         }
1885 }
1886
1887 function catchupRelativeToArticle(below) {
1888
1889         try {
1890
1891
1892                 if (!getActiveArticleId()) {
1893                         alert(__("No article is selected."));
1894                         return;
1895                 }
1896
1897                 var visible_ids;
1898
1899                 if ($("headlinesList")) {
1900                         visible_ids = getVisibleHeadlineIds();
1901                 } else {
1902                         visible_ids = cdmGetVisibleArticles();
1903                 }
1904
1905                 var ids_to_mark = new Array();
1906
1907                 if (!below) {
1908                         for (var i = 0; i < visible_ids.length; i++) {
1909                                 if (visible_ids[i] != getActiveArticleId()) {
1910                                         var e = $("RROW-" + visible_ids[i]);
1911
1912                                         if (e && e.className.match("Unread")) {
1913                                                 ids_to_mark.push(visible_ids[i]);
1914                                         }
1915                                 } else {
1916                                         break;
1917                                 }
1918                         }
1919                 } else {
1920                         for (var i = visible_ids.length-1; i >= 0; i--) {
1921                                 if (visible_ids[i] != getActiveArticleId()) {
1922                                         var e = $("RROW-" + visible_ids[i]);
1923
1924                                         if (e && e.className.match("Unread")) {
1925                                                 ids_to_mark.push(visible_ids[i]);
1926                                         }
1927                                 } else {
1928                                         break;
1929                                 }
1930                         }
1931                 }
1932
1933                 if (ids_to_mark.length == 0) {
1934                         alert(__("No articles found to mark"));
1935                 } else {
1936                         var msg = __("Mark %d article(s) as read?").replace("%d", ids_to_mark.length);
1937
1938                         if (confirm(msg)) {
1939
1940                                 for (var i = 0; i < ids_to_mark.length; i++) {
1941                                         var e = $("RROW-" + ids_to_mark[i]);
1942                                         e.className = e.className.replace("Unread", "");
1943                                 }
1944
1945                                 var query = "backend.php?op=rpc&subop=catchupSelected" +
1946                                         "&cmode=0";
1947
1948                                 var ids = "?ids=" + param_escape(ids_to_mark.toString());
1949
1950                                 new Ajax.Request(query, {
1951                                         parameters: ids,
1952                                         onComplete: function(transport) {
1953                                                 catchup_callback2(transport);
1954                                         } });
1955
1956                         }
1957                 }
1958
1959         } catch (e) {
1960                 exception_error("catchupRelativeToArticle", e);
1961         }
1962 }
1963
1964 function cdmExpandArticle(a_id) {
1965         try {
1966                 var id = 'CICD-' + a_id;
1967
1968                 try {
1969                         Element.hide("CEXC-" + a_id);
1970                 } catch (e) { }
1971
1972                 Effect.Appear(id, {duration : 0.5,
1973                         beforeStart: function(effect) {
1974                                 var h_id = 'CICH-' + a_id;
1975                                 var h_elem = $(h_id);
1976                                 if (h_elem) { h_elem.style.display = "none"; }
1977
1978                                 toggleUnread(a_id, 0);
1979                         }});
1980
1981
1982         } catch (e) {
1983                 exception_error("appearBlockElementF", e);
1984         }
1985
1986 }
1987
1988 function fixHeadlinesOrder(ids) {
1989         try {
1990                 for (var i = 0; i < ids.length; i++) {
1991                         var e = $("RROW-" + ids[i]);
1992
1993                         if (e) {
1994                                 if (i % 2 == 0) {
1995                                         e.className = e.className.replace("even", "odd");
1996                                 } else {
1997                                         e.className = e.className.replace("odd", "even");
1998                                 }
1999                         }
2000                 }
2001         } catch (e) {
2002                 exception_error("fixHeadlinesOrder", e);
2003         }
2004 }
2005
2006 function hideReadHeadlines() {
2007         try {
2008
2009                 var ids = false;
2010                 var vis_ids = new Array();
2011
2012                 if ($("headlinesList")) {
2013                         ids = getVisibleHeadlineIds();
2014                 } else {
2015                         ids = cdmGetVisibleArticles();
2016                 }
2017
2018                 var read_headlines_visible = true;
2019
2020                 for (var i = 0; i < ids.length; i++) {
2021                         var row = $("RROW-" + ids[i]);
2022
2023                         if (row && row.className) {
2024                                 if (read_headlines_visible) {
2025                                         if (row.className.match("Unread") || row.className.match("Selected")) {
2026                                                 Element.show(row);
2027                                                 vis_ids.push(ids[i]);
2028                                         } else {
2029                                                 //Effect.Fade(row, {duration : 0.3});
2030                                                 Element.hide(row);
2031                                         }
2032                                 } else {
2033                                         Element.show(row);
2034                                         vis_ids.push(ids[i]);
2035                                 }
2036                         }
2037                 }
2038
2039                 fixHeadlinesOrder(vis_ids);
2040
2041                 read_headlines_visible = !read_headlines_visible;
2042
2043         } catch (e) {
2044                 exception_error("hideReadHeadlines", e);
2045         }
2046 }
2047
2048 function invertHeadlineSelection() {
2049         try {
2050                 var rows = new Array();
2051                 var r = false;
2052
2053                 if (!isCdmMode()) {
2054                         r = document.getElementsByTagName("TR");
2055                 } else {
2056                         r = document.getElementsByTagName("DIV");
2057                 }
2058
2059                 for (var i = 0; i < r.length; i++) {
2060                         if (r[i].id && r[i].id.match("RROW-")) {
2061                                 rows.push(r[i]);
2062                         }
2063                 }
2064
2065                 for (var i = 0; i < rows.length; i++) {
2066                         var nc = rows[i].className;
2067                         var id = rows[i].id.replace("RROW-", "");
2068                         var cb = $("RCHK-" + id);
2069
2070                         if (!rows[i].className.match("Selected")) {
2071                                 nc = nc + "Selected";
2072                                 cb.checked = true;
2073                         } else {
2074                                 nc = nc.replace("Selected", "");
2075                                 cb.checked = false;
2076                         }
2077
2078                         rows[i].className = nc;
2079
2080                 }
2081
2082         } catch (e) {
2083                 exception_error("invertHeadlineSelection", e);
2084         }
2085 }
2086
2087 function getArticleUnderPointer() {
2088         return post_under_pointer;
2089 }
2090
2091 function zoomToArticle(id) {
2092         try {
2093                 var w = window.open("backend.php?op=view&mode=zoom&id=" + param_escape(id),
2094                         "ttrss_zoom_" + id,
2095                         "status=0,toolbar=0,location=0,width=450,height=300,scrollbars=1,menubar=0");
2096
2097         } catch (e) {
2098                 exception_error("zoomToArticle", e);
2099         }
2100 }
2101
2102 function showOriginalArticleInline(id) {
2103         try {
2104
2105                 var query = "backend.php?op=rpc&subop=getArticleLink&id=" + id;
2106
2107                 notify_progress("Loading, please wait...", true);
2108
2109                 new Ajax.Request(query, {
2110                         onComplete: function(transport) {
2111
2112                                 if (transport.responseXML) {
2113
2114                                         var link = transport.responseXML.getElementsByTagName("link")[0];
2115                                         var id = transport.responseXML.getElementsByTagName("id")[0];
2116
2117                                         notify("");
2118
2119                                         if (link && id) {
2120                                                 link = link.firstChild.nodeValue;
2121
2122                                                 var ci = $("content-insert");
2123
2124                                                 var tmp = "<iframe id=\"inline_orig_article\" width=\""+ci.offsetWidth+"\" height=\""+ci.offsetHeight+"\" style=\"border-width : 0px;\" src=\""+link+"\"></iframe>";
2125
2126                                                 render_article(tmp);
2127
2128                                         }
2129                                 }
2130                         } });
2131
2132         } catch (e) {
2133                 exception_error("showOriginalArticleInline", e);
2134         }
2135 }
2136
2137
2138 function scrollArticle(offset) {
2139         try {
2140                 if (!isCdmMode()) {
2141                         var ci = $("content-insert");
2142                         if (ci) {
2143                                 ci.scrollTop += offset;
2144                         }
2145                 } else {
2146                         var hi = $("headlinesInnerContainer");
2147                         if (hi) {
2148                                 hi.scrollTop += offset;
2149                         }
2150
2151                 }
2152         } catch (e) {
2153                 exception_error("scrollArticle", e);
2154         }
2155 }
2156
2157 function show_labels_in_headlines(transport) {
2158         try {
2159                 if (transport.responseXML) {
2160                         var info = transport.responseXML.getElementsByTagName("info-for-headlines")[0];
2161
2162                         var elems = info.getElementsByTagName("entry");
2163
2164                         for (var l = 0; l < elems.length; l++) {
2165                                 var e_id = elems[l].getAttribute("id");
2166
2167                                 if (e_id) {
2168
2169                                         var ctr = $("HLLCTR-" + e_id);
2170
2171                                         if (ctr) {
2172                                                 ctr.innerHTML = elems[l].firstChild.nodeValue;
2173                                         }
2174                                 }
2175
2176                         }
2177
2178                 }
2179         } catch (e) {
2180                 exception_error("show_labels_in_headlines", e);
2181
2182         }
2183 }
2184
2185 function toggleHeadlineActions() {
2186         try {
2187                 var e = $("headlineActionsBody");
2188                 var p = $("headlineActionsDrop");
2189
2190                 if (!Element.visible(e)) {
2191                         Element.show(e);
2192                 } else {
2193                         Element.hide(e);
2194                 }
2195
2196                 e.scrollTop = 0;
2197                 e.style.left = (p.offsetLeft + 1) + "px";
2198                 e.style.top = (p.offsetTop + p.offsetHeight + 2) + "px";
2199
2200         } catch (e) {
2201                 exception_error("toggleHeadlineActions", e);
2202         }
2203 }
2204
2205 function publishWithNote(id, def_note) {
2206         try {
2207                 if (!def_note) def_note = '';
2208
2209                 var note = prompt(__("Please enter a note for this article:"), def_note);
2210
2211                 if (note != undefined) {
2212                         togglePub(id, false, false, note);
2213                 }
2214
2215         } catch (e) {
2216                 exception_error("publishWithNote", e);
2217         }
2218 }