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 catchup_callback2(transport, callback) {
  19         try {
  20                 console.log("catchup_callback2 " + transport + ", " + callback);
  21                 notify("");
  22                 all_counters_callback2(transport);
  23                 if (callback) {
  24                         setTimeout(callback, 10);
  25                 }
  26         } catch (e) {
  27                 exception_error("catchup_callback2", e, transport);
  28         }
  29 }
  30
  31 function clean_feed_selections() {
  32         try {
  33                 var feeds = $("feedList").getElementsByTagName("LI");
  34
  35                 for (var i = 0; i < feeds.length; i++) {
  36                         if (feeds[i].id && feeds[i].id.match("FEEDR-")) {
  37                                 feeds[i].className = feeds[i].className.replace("Selected", "");
  38                         }
  39                         if (feeds[i].id && feeds[i].id.match("FCAT-")) {
  40                                 feeds[i].className = feeds[i].className.replace("Selected", "");
  41                         }
  42                 }
  43         } catch (e) {
  44                 exception_error("clean_feed_selections", e);
  45         }
  46 }
  47
  48 function headlines_callback2(transport, feed_cur_page) {
  49         try {
  50
  51                 if (!transport.responseText && db) {
  52                         offlineConfirmModeChange();
  53                         return;
  54                 }
  55
  56                 loading_set_progress(100);
  57
  58                 console.log("headlines_callback2 [page=" + feed_cur_page + "]");
  59
  60                 if (!transport_error_check(transport)) return;
  61
  62                 clean_feed_selections();
  63
  64                 var is_cat = false;
  65                 var feed_id = false;
  66
  67                 if (transport.responseXML) {
  68                         var headlines = transport.responseXML.getElementsByTagName("headlines")[0];
  69                         if (headlines) {
  70                                 is_cat = headlines.getAttribute("is_cat");
  71                                 feed_id = headlines.getAttribute("id");
  72                                 setActiveFeedId(feed_id, is_cat);
  73                         }
  74                 }
  75
  76                 var ll = $('FLL-' + feed_id);
  77
  78                 if (!is_cat) {
  79                         var feedr = $("FEEDR-" + feed_id);
  80                         if (feedr && !feedr.className.match("Selected")) {
  81                                 feedr.className = feedr.className + "Selected";
  82                         }
  83                         if (feedr && ll) feedr.removeChild(ll);
  84                 } else {
  85                         var feedr = $("FCAT-" + feed_id);
  86                         if (feedr && !feedr.className.match("Selected")) {
  87                                 feedr.className = feedr.className + "Selected";
  88                         }
  89
  90                         var fcap = $("FCAP-" + feed_id);
  91                         if (fcap && ll) fcap.removeChild(ll);
  92
  93                 }
  94
  95                 var img = $('FIMG-' + feed_id);
  96
  97                 if (img && !is_cat) {
  98                         img.src = img.alt;
  99                 }
 100
 101                 var f = $("headlines-frame");
 102                 try {
 103                         if (feed_cur_page == 0) {
 104                                 console.log("resetting headlines scrollTop");
 105                                 f.scrollTop = 0;
 106                         }
 107                 } catch (e) { };
 108
 109                 if (transport.responseXML) {
 110                         var response = transport.responseXML;
 111
 112                         var headlines = response.getElementsByTagName("headlines")[0];
 113                         var headlines_info = response.getElementsByTagName("headlines-info")[0];
 114
 115                         if (headlines_info)
 116                                 headlines_info = JSON.parse(headlines_info.firstChild.nodeValue);
 117                         else
 118                                 console.log("didn't find headlines-info object in response");
 119
 120                         var headlines_count = headlines_info.count;
 121                         var headlines_unread = headlines_info.unread;
 122                         var disable_cache = headlines_info.disable_cache;
 123
 124                         vgroup_last_feed = headlines_info.vgroup_last_feed;
 125
 126                         if (headlines_count == 0) {
 127                                 _infscroll_disable = 1;
 128                         } else {
 129                                 _infscroll_disable = 0;
 130                         }
 131
 132                         var counters = response.getElementsByTagName("counters")[0];
 133                         var articles = response.getElementsByTagName("article");
 134                         var runtime_info = response.getElementsByTagName("runtime-info");
 135
 136                         if (feed_cur_page == 0) {
 137                                 if (headlines) {
 138                                         f.innerHTML = headlines.firstChild.nodeValue;
 139
 140                                         var cache_prefix = "";
 141
 142                                         if (is_cat) {
 143                                                 cache_prefix = "C:";
 144                                         } else {
 145                                                 cache_prefix = "F:";
 146                                         }
 147
 148                                         cache_invalidate(cache_prefix + feed_id);
 149
 150                                         if (!disable_cache) {
 151                                                 cache_inject(cache_prefix + feed_id,
 152                                                         headlines.firstChild.nodeValue, headlines_unread);
 153                                         }
 154
 155                                 } else {
 156                                         console.log("headlines_callback: returned no data");
 157                                 f.innerHTML = "<div class='whiteBox'>" + __('Could not update headlines (missing XML data)') + "</div>";
 158
 159                                 }
 160                         } else {
 161                                 if (headlines) {
 162                                         if (headlines_count > 0) {
 163                                                 console.log("adding some more headlines...");
 164
 165                                                 var c = $("headlinesList");
 166
 167                                                 if (!c) {
 168                                                         c = $("headlinesInnerContainer");
 169                                                 }
 170
 171                                                 var ids = getSelectedArticleIds2();
 172
 173                                                 c.innerHTML = c.innerHTML + headlines.firstChild.nodeValue;
 174
 175                                                 console.log("restore selected ids: " + ids);
 176
 177                                                 for (var i = 0; i < ids.length; i++) {
 178                                                         markHeadline(ids[i]);
 179                                                 }
 180
 181                                         } else {
 182                                                 console.log("no new headlines received");
 183                                         }
 184                                 } else {
 185                                         console.log("headlines_callback: returned no data");
 186                                         notify_error("Error while trying to load more headlines");
 187                                 }
 188
 189                         }
 190
 191                         if (articles) {
 192                                 for (var i = 0; i < articles.length; i++) {
 193                                         var a_id = articles[i].getAttribute("id");
 194                                         console.log("found id: " + a_id);
 195                                         cache_inject(a_id, articles[i].firstChild.nodeValue);
 196                                 }
 197                         } else {
 198                                 console.log("no cached articles received");
 199                         }
 200
 201                         if (counters) {
 202                                 console.log("parsing piggybacked counters: " + counters);
 203                                 parse_counters(counters, false);
 204                         } else {
 205                                 console.log("counters container not found in reply, requesting...");
 206                                 request_counters();
 207                         }
 208
 209                         if (runtime_info) {
 210                                 console.log("parsing runtime info: " + runtime_info[0]);
 211                                 parse_runtime_info(runtime_info[0]);
 212                         } else {
 213                                 console.log("counters container not found in reply");
 214                         }
 215
 216                 } else {
 217                         console.log("headlines_callback: returned no XML object");
 218                         f.innerHTML = "<div class='whiteBox'>" + __('Could not update headlines (missing XML object)') + "</div>";
 219                 }
 220
 221                 if (typeof correctPNG != 'undefined') {
 222                         correctPNG();
 223                 }
 224
 225                 if (_cdm_wd_timeout) window.clearTimeout(_cdm_wd_timeout);
 226
 227                 if (!$("headlinesList") &&
 228                                 getActiveFeedId() != -3 &&
 229                                 getInitParam("cdm_auto_catchup") == 1) {
 230                         console.log("starting CDM watchdog");
 231                         _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 5000);
 232                         _cdm_wd_vishist = new Array();
 233                 } else {
 234                         console.log("not in CDM mode or watchdog disabled");
 235                 }
 236
 237                 _feed_cur_page = feed_cur_page;
 238                 _infscroll_request_sent = 0;
 239
 240                 notify("");
 241
 242                 remove_splash();
 243
 244         } catch (e) {
 245                 exception_error("headlines_callback2", e, transport);
 246         }
 247 }
 248
 249 function render_article(article) {
 250         try {
 251                 var f = $("content-frame");
 252                 try {
 253                         f.scrollTop = 0;
 254                 } catch (e) { };
 255
 256                 var fi = $("content-insert");
 257
 258                 try {
 259                         fi.scrollTop = 0;
 260                 } catch (e) { };
 261
 262                 fi.innerHTML = article;
 263
 264 //              article.evalScripts();
 265
 266         } catch (e) {
 267                 exception_error("render_article", e);
 268         }
 269 }
 270
 271 function showArticleInHeadlines(id) {
 272
 273         try {
 274
 275                 cleanSelected("headlinesList");
 276
 277                 var crow = $("RROW-" + id);
 278
 279                 if (!crow) return;
 280
 281                 var article_is_unread = crow.className.match("Unread");
 282
 283                 crow.className = crow.className.replace("Unread", "");
 284
 285                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
 286
 287                 var upd_img_pic = $("FUPDPIC-" + id);
 288
 289                 var cache_prefix = "";
 290
 291                 if (activeFeedIsCat()) {
 292                         cache_prefix = "C:";
 293                 } else {
 294                         cache_prefix = "F:";
 295                 }
 296
 297                 var view_mode = false;
 298
 299                 try {
 300                         view_mode = document.forms['main_toolbar_form'].view_mode;
 301                         view_mode = view_mode[view_mode.selectedIndex].value;
 302                 } catch (e) {
 303                         //
 304                 }
 305
 306                 if (upd_img_pic && (upd_img_pic.src.match("updated.png") ||
 307                                         upd_img_pic.src.match("fresh_sign.png"))) {
 308
 309                         upd_img_pic.src = "images/blank_icon.gif";
 310
 311                         cache_invalidate(cache_prefix + getActiveFeedId());
 312
 313                         cache_inject(cache_prefix + getActiveFeedId(),
 314                                 $("headlines-frame").innerHTML,
 315                                 get_feed_unread(getActiveFeedId()));
 316
 317                 } else if (article_is_unread && view_mode == "all_articles") {
 318
 319                         cache_invalidate(cache_prefix + getActiveFeedId());
 320
 321                         cache_inject(cache_prefix + getActiveFeedId(),
 322                                 $("headlines-frame").innerHTML,
 323                                 get_feed_unread(getActiveFeedId())-1);
 324
 325                 } else if (article_is_unread) {
 326                         cache_invalidate(cache_prefix + getActiveFeedId());
 327                 }
 328
 329                 markHeadline(id);
 330
 331         } catch (e) {
 332                 exception_error("showArticleInHeadlines", e);
 333         }
 334 }
 335
 336 function article_callback2(transport, id) {
 337         try {
 338                 console.log("article_callback2 " + id);
 339
 340                 if (!transport.responseText && db) {
 341                         offlineConfirmModeChange();
 342                         return;
 343                 }
 344
 345                 if (transport.responseXML) {
 346
 347                         if (!transport_error_check(transport)) return;
 348
 349 /*                      var ll = $('LL-' + id);
 350                         var content = $('HLC-' + id);
 351
 352                         if (ll && content) content.removeChild(ll); */
 353
 354                         var upic = $('FUPDPIC-' + id);
 355
 356                         if (upic) {
 357                                 upic.src = 'images/blank_icon.gif';
 358                         }
 359
 360                         if (id != last_requested_article) {
 361                                 console.log("requested article id is out of sequence, aborting");
 362                                 return;
 363                         }
 364
 365                         active_post_id = id;
 366
 367                         console.log("looking for articles to cache...");
 368
 369                         var articles = transport.responseXML.getElementsByTagName("article");
 370
 371                         for (var i = 0; i < articles.length; i++) {
 372                                 var a_id = articles[i].getAttribute("id");
 373
 374                                 console.log("found id: " + a_id);
 375
 376                                 if (a_id == active_post_id) {
 377                                         console.log("active article, rendering...");
 378                                         render_article(articles[i].firstChild.nodeValue);
 379                                 }
 380
 381                                 cache_inject(a_id, articles[i].firstChild.nodeValue);
 382                         }
 383
 384
 385                         showArticleInHeadlines(id);
 386
 387                         if (db) {
 388                                 db.execute("UPDATE articles SET unread = 0 WHERE id = ?", [id]);
 389                         }
 390
 391                         var reply = transport.responseXML.firstChild.firstChild;
 392
 393                 } else {
 394                         console.log("article_callback: returned no XML object");
 395                         //var f = $("content-frame");
 396                         //f.innerHTML = "<div class='whiteBox'>" + __('Could not display article (missing XML object)') + "</div>";
 397                 }
 398
 399                 var date = new Date();
 400                 last_article_view = date.getTime() / 1000;
 401
 402                 if (typeof correctPNG != 'undefined') {
 403                         correctPNG();
 404                 }
 405
 406                 if (_reload_feedlist_after_view) {
 407                         setTimeout('updateFeedList(false, false)', 50);
 408                         _reload_feedlist_after_view = false;
 409                 } else {
 410                         if (transport.responseXML) {
 411                                 var counters = transport.responseXML.getElementsByTagName("counters")[0];
 412
 413                                 if (counters) {
 414                                         console.log("parsing piggybacked counters: " + counters);
 415                                         parse_counters(counters, false);
 416                                 } else {
 417                                         console.log("counters container not found in reply, requesting...");
 418                                         request_counters();
 419                                 }
 420                         }
 421                 }
 422
 423                 notify("");
 424         } catch (e) {
 425                 exception_error("article_callback2", e, transport);
 426         }
 427 }
 428
 429 function view(id) {
 430         try {
 431                 console.log("loading article: " + id);
 432
 433                 if (offline_mode) return view_offline(id);
 434
 435                 var cached_article = cache_find(id);
 436
 437                 console.log("cache check result: " + (cached_article != false));
 438
 439                 enableHotkeys();
 440                 hideAuxDlg();
 441
 442                 var query = "?op=view&id=" + param_escape(id);
 443
 444                 var neighbor_ids = getRelativePostIds(active_post_id);
 445
 446                 /* only request uncached articles */
 447
 448                 var cids_to_request = Array();
 449
 450                 for (var i = 0; i < neighbor_ids.length; i++) {
 451                         if (!cache_check(neighbor_ids[i])) {
 452                                 cids_to_request.push(neighbor_ids[i]);
 453                         }
 454                 }
 455
 456                 console.log("additional ids: " + cids_to_request.toString());
 457
 458                 /* additional info for piggyback counters */
 459
 460                 if (tagsAreDisplayed()) {
 461                         query = query + "&omode=lt";
 462                 } else {
 463                         query = query + "&omode=flc";
 464                 }
 465
 466                 query = query + "&cids=" + cids_to_request.toString();
 467
 468                 var crow = $("RROW-" + id);
 469                 var article_is_unread = crow.className.match("Unread");
 470
 471                 if (!async_counters_work) {
 472                         query = query + "&csync=true";
 473                 }
 474
 475                 showArticleInHeadlines(id);
 476
 477                 if (!cached_article) {
 478
 479                         var upic = $('FUPDPIC-' + id);
 480
 481                         if (upic) {
 482                                 upic.src = getInitParam("sign_progress");
 483                         }
 484
 485                 } else if (cached_article && article_is_unread) {
 486
 487                         query = query + "&mode=prefetch";
 488
 489                         render_article(cached_article);
 490
 491                 } else if (cached_article) {
 492
 493                         query = query + "&mode=prefetch_old";
 494                         render_article(cached_article);
 495
 496                 }
 497
 498                 cache_expire();
 499
 500                 last_requested_article = id;
 501
 502                 new Ajax.Request("backend.php", {
 503                         parameters: query,
 504                         onComplete: function(transport) {
 505                                 article_callback2(transport, id);
 506                         } });
 507
 508                 return false;
 509
 510         } catch (e) {
 511                 exception_error("view", e);
 512         }
 513 }
 514
 515 function tMark(id) {
 516         return toggleMark(id);
 517 }
 518
 519 function tPub(id) {
 520         return togglePub(id);
 521 }
 522
 523 function tMark_afh_off(effect) {
 524         try {
 525                 var elem = effect.effects[0].element;
 526
 527                 console.log("tMark_afh_off : " + elem.id);
 528
 529                 if (elem) {
 530                         elem.src = elem.src.replace("mark_set", "mark_unset");
 531                         elem.alt = __("Star article");
 532                         Element.show(elem);
 533                 }
 534
 535         } catch (e) {
 536                 exception_error("tMark_afh_off", e);
 537         }
 538 }
 539
 540 function tPub_afh_off(effect) {
 541         try {
 542                 var elem = effect.effects[0].element;
 543
 544                 console.log("tPub_afh_off : " + elem.id);
 545
 546                 if (elem) {
 547                         elem.src = elem.src.replace("pub_set", "pub_unset");
 548                         elem.alt = __("Publish article");
 549                         Element.show(elem);
 550                 }
 551
 552         } catch (e) {
 553                 exception_error("tPub_afh_off", e);
 554         }
 555 }
 556
 557 function toggleMark(id, client_only, no_effects) {
 558
 559         try {
 560
 561                 var query = "?op=rpc&id=" + id + "&subop=mark";
 562
 563                 query = query + "&afid=" + getActiveFeedId();
 564
 565                 if (tagsAreDisplayed()) {
 566                         query = query + "&omode=tl";
 567                 } else {
 568                         query = query + "&omode=flc";
 569                 }
 570
 571                 var mark_img = $("FMPIC-" + id);
 572
 573                 if (!mark_img) return;
 574
 575                 var vfeedu = $("FEEDU--1");
 576                 var crow = $("RROW-" + id);
 577
 578                 if (mark_img.src.match("mark_unset")) {
 579                         mark_img.src = mark_img.src.replace("mark_unset", "mark_set");
 580                         mark_img.alt = __("Unstar article");
 581                         query = query + "&mark=1";
 582
 583                         if (db) {
 584                                 db.execute("UPDATE articles SET marked = 1 WHERE id = ?", [id]);
 585                         }
 586
 587                 } else {
 588                         mark_img.alt = __("Please wait...");
 589                         query = query + "&mark=0";
 590
 591                         if ($("headlinesList") && !no_effects) {
 592                                 Effect.Puff(mark_img, {duration : 0.25, afterFinish: tMark_afh_off});
 593                         } else {
 594                                 mark_img.src = mark_img.src.replace("mark_set", "mark_unset");
 595                                 mark_img.alt = __("Star article");
 596                         }
 597
 598                         if (db) {
 599                                 db.execute("UPDATE articles SET marked = 0 WHERE id = ?", [id]);
 600                         }
 601
 602                 }
 603
 604                 if (!no_effects) update_local_feedlist_counters();
 605
 606                 if (!client_only) {
 607                         console.log(query);
 608
 609                         new Ajax.Request("backend.php", {
 610                                 parameters: query,
 611                                 onComplete: function(transport) {
 612                                         all_counters_callback2(transport);
 613                                 } });
 614
 615                 }
 616
 617         } catch (e) {
 618                 exception_error("toggleMark", e);
 619         }
 620 }
 621
 622 function togglePub(id, client_only, no_effects, note) {
 623
 624         try {
 625
 626                 var query = "?op=rpc&id=" + id + "&subop=publ";
 627
 628                 query = query + "&afid=" + getActiveFeedId();
 629
 630                 if (note != undefined) {
 631                         query = query + "&note=" + param_escape(note);
 632                 } else {
 633                         query = query + "&note=undefined";
 634                 }
 635
 636                 if (tagsAreDisplayed()) {
 637                         query = query + "&omode=tl";
 638                 } else {
 639                         query = query + "&omode=flc";
 640                 }
 641
 642                 var mark_img = $("FPPIC-" + id);
 643
 644                 if (!mark_img) return;
 645
 646                 var vfeedu = $("FEEDU--2");
 647                 var crow = $("RROW-" + id);
 648
 649                 if (mark_img.src.match("pub_unset") || note != undefined) {
 650                         mark_img.src = mark_img.src.replace("pub_unset", "pub_set");
 651                         mark_img.alt = __("Unpublish article");
 652                         query = query + "&pub=1";
 653
 654                 } else {
 655                         mark_img.alt = __("Please wait...");
 656                         query = query + "&pub=0";
 657
 658                         if ($("headlinesList") && !no_effects) {
 659                                 Effect.Puff(mark_img, {duration : 0.25, afterFinish: tPub_afh_off});
 660                         } else {
 661                                 mark_img.src = mark_img.src.replace("pub_set", "pub_unset");
 662                                 mark_img.alt = __("Publish article");
 663                         }
 664                 }
 665
 666                 if (!client_only) {
 667                         new Ajax.Request("backend.php", {
 668                                 parameters: query,
 669                                 onComplete: function(transport) {
 670                                         all_counters_callback2(transport);
 671
 672                                         var note = transport.responseXML.getElementsByTagName("note")[0];
 673
 674                                         if (note) {
 675                                                 var note_id = note.getAttribute("id");
 676                                                 var note_size = note.getAttribute("size");
 677                                                 var note_content = note.firstChild.nodeValue;
 678
 679                                                 var container = $('POSTNOTE-' + note_id);
 680
 681                                                 cache_invalidate(note_id);
 682
 683                                                 if (container) {
 684                                                         if (note_size == "0") {
 685                                                                 Element.hide(container);
 686                                                         } else {
 687                                                                 container.innerHTML = note_content;
 688                                                                 Element.show(container);
 689                                                         }
 690                                                 }
 691                                         }
 692
 693                                 } });
 694                 }
 695
 696         } catch (e) {
 697                 exception_error("togglePub", e);
 698         }
 699 }
 700
 701 function correctHeadlinesOffset(id) {
 702
 703         try {
 704
 705                 var hlist = $("headlinesList");
 706                 var container = $("headlinesInnerContainer");
 707                 var row = $("RROW-" + id);
 708
 709                 var viewport = container.offsetHeight;
 710
 711                 var rel_offset_top = row.offsetTop - container.scrollTop;
 712                 var rel_offset_bottom = row.offsetTop + row.offsetHeight - container.scrollTop;
 713
 714                 console.log("Rtop: " + rel_offset_top + " Rbtm: " + rel_offset_bottom);
 715                 console.log("Vport: " + viewport);
 716
 717                 if (rel_offset_top <= 0 || rel_offset_top > viewport) {
 718                         container.scrollTop = row.offsetTop;
 719                 } else if (rel_offset_bottom > viewport) {
 720
 721                         /* doesn't properly work with Opera in some cases because
 722                                 Opera fucks up element scrolling */
 723
 724                         container.scrollTop = row.offsetTop + row.offsetHeight - viewport;
 725                 }
 726
 727         } catch (e) {
 728                 exception_error("correctHeadlinesOffset", e);
 729         }
 730
 731 }
 732
 733 function moveToPost(mode) {
 734
 735         try {
 736
 737                 var rows;
 738
 739                 if (isCdmMode()) {
 740                         rows = cdmGetVisibleArticles();
 741                 } else {
 742                         rows = getVisibleHeadlineIds();
 743                 }
 744
 745                 var prev_id = false;
 746                 var next_id = false;
 747
 748                 if (!$('RROW-' + active_post_id)) {
 749                         active_post_id = false;
 750                 }
 751
 752                 if (active_post_id == false) {
 753                         next_id = getFirstVisibleHeadlineId();
 754                         prev_id = getLastVisibleHeadlineId();
 755                 } else {
 756                         for (var i = 0; i < rows.length; i++) {
 757                                 if (rows[i] == active_post_id) {
 758                                         prev_id = rows[i-1];
 759                                         next_id = rows[i+1];
 760                                 }
 761                         }
 762                 }
 763
 764                 if (mode == "next") {
 765                         if (next_id) {
 766                                 if (isCdmMode()) {
 767
 768                                         if (!cdmArticleIsActuallyVisible(next_id)) {
 769                                                 cdmScrollToArticleId(next_id);
 770                                         }
 771                                         cdmSelectArticles("none");
 772                                         toggleUnread(next_id, 0, true);
 773                                         toggleSelected(next_id);
 774
 775                                 } else {
 776                                         correctHeadlinesOffset(next_id);
 777                                         view(next_id, getActiveFeedId());
 778                                 }
 779                         }
 780                 }
 781
 782                 if (mode == "prev") {
 783                         if (prev_id) {
 784                                 if (isCdmMode()) {
 785                                         cdmScrollToArticleId(prev_id);
 786                                         cdmSelectArticles("none");
 787                                         toggleUnread(prev_id, 0, true);
 788                                         toggleSelected(prev_id);
 789                                 } else {
 790                                         correctHeadlinesOffset(prev_id);
 791                                         view(prev_id, getActiveFeedId());
 792                                 }
 793                         }
 794                 }
 795
 796         } catch (e) {
 797                 exception_error("moveToPost", e);
 798         }
 799 }
 800
 801 function toggleSelected(id) {
 802         try {
 803
 804                 var cb = $("RCHK-" + id);
 805
 806                 var row = $("RROW-" + id);
 807                 if (row) {
 808                         var nc = row.className;
 809
 810                         if (!nc.match("Selected")) {
 811                                 nc = nc + "Selected";
 812                                 if (cb) {
 813                                         cb.checked = true;
 814                                 }
 815
 816                                 // In CDM basically last selected article == active article
 817                                 if (isCdmMode()) active_post_id = id;
 818                         } else {
 819                                 nc = nc.replace("Selected", "");
 820                                 if (cb) {
 821                                         cb.checked = false;
 822                                 }
 823
 824                         }
 825
 826                         row.className = nc;
 827                 }
 828         } catch (e) {
 829                 exception_error("toggleSelected", e);
 830         }
 831 }
 832
 833 function toggleUnread_afh(effect) {
 834         try {
 835
 836                 var elem = effect.element;
 837                 elem.style.backgroundColor = "";
 838
 839         } catch (e) {
 840                 exception_error("toggleUnread_afh", e);
 841         }
 842 }
 843
 844 function toggleUnread(id, cmode, effect) {
 845         try {
 846
 847                 var row = $("RROW-" + id);
 848                 if (row) {
 849                         var nc = row.className;
 850                         var is_selected = row.className.match("Selected");
 851                         nc = nc.replace("Unread", "");
 852                         nc = nc.replace("Selected", "");
 853
 854                         // since we are removing selection from the object, uncheck
 855                         // corresponding checkbox
 856
 857                         var cb = $("RCHK-" + id);
 858                         if (cb) {
 859                                 cb.checked = false;
 860                         }
 861
 862                         // NOTE: I'm not sure that resetting selection here is a feature -fox
 863
 864                         if (cmode == undefined || cmode == 2) {
 865                                 if (row.className.match("Unread")) {
 866                                         row.className = nc;
 867
 868                                         if (effect) {
 869                                                 new Effect.Highlight(row, {duration: 1, startcolor: "#fff7d5",
 870                                                         afterFinish: toggleUnread_afh,
 871                                                         queue: { position:'end', scope: 'TMRQ-' + id, limit: 1 } } );
 872                                         }
 873
 874                                 } else {
 875                                         row.className = nc + "Unread";
 876                                 }
 877
 878                                 if (db) {
 879                                         db.execute("UPDATE articles SET unread = not unread "+
 880                                                 "WHERE id = ?", [id]);
 881                                 }
 882
 883                         } else if (cmode == 0) {
 884                                 row.className = nc;
 885
 886                                 if (effect) {
 887                                         new Effect.Highlight(row, {duration: 1, startcolor: "#fff7d5",
 888                                                 afterFinish: toggleUnread_afh,
 889                                                 queue: { position:'end', scope: 'TMRQ-' + id, limit: 1 } } );
 890                                 }
 891
 892                                 if (db) {
 893                                         db.execute("UPDATE articles SET unread = 0 "+
 894                                                 "WHERE id = ?", [id]);
 895                                 }
 896
 897                         } else if (cmode == 1) {
 898                                 row.className = nc + "Unread";
 899
 900                                 if (db) {
 901                                         db.execute("UPDATE articles SET unread = 1 "+
 902                                                 "WHERE id = ?", [id]);
 903                                 }
 904
 905                         }
 906
 907                         update_local_feedlist_counters();
 908
 909                         // Disable unmarking as selected for the time being (16.05.08) -fox
 910                         if (is_selected) row.className = row.className + "Selected";
 911
 912                         if (cmode == undefined) cmode = 2;
 913
 914                         var query = "?op=rpc&subop=catchupSelected" +
 915                                 "&cmode=" + param_escape(cmode) + "&ids=" + param_escape(id);
 916
 917 //                      notify_progress("Loading, please wait...");
 918
 919                         new Ajax.Request("backend.php", {
 920                                 parameters: query,
 921                                 onComplete: function(transport) {
 922                                         all_counters_callback2(transport);
 923                                 } });
 924
 925                 }
 926
 927         } catch (e) {
 928                 exception_error("toggleUnread", e);
 929         }
 930 }
 931
 932 function selectionRemoveLabel(id) {
 933         try {
 934
 935                 var ids = getSelectedArticleIds2();
 936
 937                 if (ids.length == 0) {
 938                         alert(__("No articles are selected."));
 939                         return;
 940                 }
 941
 942 //              var ok = confirm(__("Remove selected articles from label?"));
 943
 944 //              if (ok) {
 945
 946                         var query = "?op=rpc&subop=removeFromLabel&ids=" +
 947                                 param_escape(ids.toString()) + "&lid=" + param_escape(id);
 948
 949 //                      notify_progress("Loading, please wait...");
 950
 951                         cache_invalidate("F:" + (-11 - id));
 952
 953                         new Ajax.Request("backend.php", {
 954                                 parameters: query,
 955                                 onComplete: function(transport) {
 956                                         show_labels_in_headlines(transport);
 957                                         all_counters_callback2(transport);
 958                                 } });
 959
 960 //              }
 961
 962         } catch (e) {
 963                 exception_error("selectionAssignLabel", e);
 964
 965         }
 966 }
 967
 968 function selectionAssignLabel(id) {
 969         try {
 970
 971                 var ids = getSelectedArticleIds2();
 972
 973                 if (ids.length == 0) {
 974                         alert(__("No articles are selected."));
 975                         return;
 976                 }
 977
 978 //              var ok = confirm(__("Assign selected articles to label?"));
 979
 980 //              if (ok) {
 981
 982                         cache_invalidate("F:" + (-11 - id));
 983
 984                         var query = "?op=rpc&subop=assignToLabel&ids=" +
 985                                 param_escape(ids.toString()) + "&lid=" + param_escape(id);
 986
 987 //                      notify_progress("Loading, please wait...");
 988
 989                         new Ajax.Request("backend.php", {
 990                                 parameters: query,
 991                                 onComplete: function(transport) {
 992                                         show_labels_in_headlines(transport);
 993                                         all_counters_callback2(transport);
 994                                 } });
 995
 996 //              }
 997
 998         } catch (e) {
 999                 exception_error("selectionAssignLabel", e);
1000
1001         }
1002 }
1003
1004 function selectionToggleUnread(cdm_mode, set_state, callback_func, no_error) {
1005         try {
1006                 var rows;
1007
1008                 if (cdm_mode) {
1009                         rows = cdmGetSelectedArticles();
1010                 } else {
1011                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1012                 }
1013
1014                 if (rows.length == 0 && !no_error) {
1015                         alert(__("No articles are selected."));
1016                         return;
1017                 }
1018
1019                 for (i = 0; i < rows.length; i++) {
1020                         var row = $("RROW-" + rows[i]);
1021                         if (row) {
1022                                 var nc = row.className;
1023                                 nc = nc.replace("Unread", "");
1024                                 nc = nc.replace("Selected", "");
1025
1026                                 if (set_state == undefined) {
1027                                         if (row.className.match("Unread")) {
1028                                                 row.className = nc + "Selected";
1029                                         } else {
1030                                                 row.className = nc + "UnreadSelected";
1031                                         }
1032                                         if (db) {
1033                                                 db.execute("UPDATE articles SET unread = NOT unread WHERE id = ?",
1034                                                         [rows[i]]);
1035                                         }
1036                                 }
1037
1038                                 if (set_state == false) {
1039                                         row.className = nc + "Selected";
1040                                         if (db) {
1041                                                 db.execute("UPDATE articles SET unread = 0 WHERE id = ?",
1042                                                         [rows[i]]);
1043                                         }
1044                                 }
1045
1046                                 if (set_state == true) {
1047                                         row.className = nc + "UnreadSelected";
1048                                         if (db) {
1049                                                 db.execute("UPDATE articles SET unread = 1 WHERE id = ?",
1050                                                         [rows[i]]);
1051                                         }
1052                                 }
1053                         }
1054                 }
1055
1056                 if (rows.length > 0) {
1057
1058                         update_local_feedlist_counters();
1059
1060                         var cmode = "";
1061
1062                         if (set_state == undefined) {
1063                                 cmode = "2";
1064                         } else if (set_state == true) {
1065                                 cmode = "1";
1066                         } else if (set_state == false) {
1067                                 cmode = "0";
1068                         }
1069
1070                         var query = "?op=rpc&subop=catchupSelected" +
1071                                 "&cmode=" + cmode + "&ids=" + param_escape(rows.toString());
1072
1073                         notify_progress("Loading, please wait...");
1074
1075                         new Ajax.Request("backend.php", {
1076                                 parameters: query,
1077                                 onComplete: function(transport) {
1078                                         catchup_callback2(transport, callback_func);
1079                                 } });
1080
1081                 }
1082
1083         } catch (e) {
1084                 exception_error("selectionToggleUnread", e);
1085         }
1086 }
1087
1088 function selectionToggleMarked(cdm_mode) {
1089         try {
1090
1091                 var rows;
1092
1093                 if (cdm_mode) {
1094                         rows = cdmGetSelectedArticles();
1095                 } else {
1096                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1097                 }
1098
1099                 if (rows.length == 0) {
1100                         alert(__("No articles are selected."));
1101                         return;
1102                 }
1103
1104                 for (i = 0; i < rows.length; i++) {
1105                         toggleMark(rows[i], true, true);
1106                 }
1107
1108                 update_local_feedlist_counters();
1109
1110                 if (rows.length > 0) {
1111
1112                         var query = "?op=rpc&subop=markSelected&ids=" +
1113                                 param_escape(rows.toString()) + "&cmode=2";
1114
1115                         query = query + "&afid=" + getActiveFeedId();
1116
1117                         query = query + "&omode=lc";
1118
1119                         new Ajax.Request("backend.php", {
1120                                 parameters: query,
1121                                 onComplete: function(transport) {
1122                                         all_counters_callback2(transport);
1123                                 } });
1124
1125                 }
1126
1127         } catch (e) {
1128                 exception_error("selectionToggleMarked", e);
1129         }
1130 }
1131
1132 function selectionTogglePublished(cdm_mode) {
1133         try {
1134
1135                 var rows;
1136
1137                 if (cdm_mode) {
1138                         rows = cdmGetSelectedArticles();
1139                 } else {
1140                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1141                 }
1142
1143                 if (rows.length == 0) {
1144                         alert(__("No articles are selected."));
1145                         return;
1146                 }
1147
1148                 for (i = 0; i < rows.length; i++) {
1149                         togglePub(rows[i], true, true);
1150                 }
1151
1152                 if (rows.length > 0) {
1153
1154                         var query = "?op=rpc&subop=publishSelected&ids=" +
1155                                 param_escape(rows.toString()) + "&cmode=2";
1156
1157                         query = query + "&afid=" + getActiveFeedId();
1158
1159                         query = query + "&omode=lc";
1160
1161                         new Ajax.Request("backend.php", {
1162                                 parameters: query,
1163                                 onComplete: function(transport) {
1164                                         all_counters_callback2(transport);
1165                                 } });
1166
1167                 }
1168
1169         } catch (e) {
1170                 exception_error("selectionToggleMarked", e);
1171         }
1172 }
1173
1174 function cdmGetSelectedArticles() {
1175         var sel_articles = new Array();
1176         var container = $("headlinesInnerContainer");
1177
1178         for (i = 0; i < container.childNodes.length; i++) {
1179                 var child = container.childNodes[i];
1180
1181                 if (child.id && child.id.match("RROW-") && child.className.match("Selected")) {
1182                         var c_id = child.id.replace("RROW-", "");
1183                         sel_articles.push(c_id);
1184                 }
1185         }
1186
1187         return sel_articles;
1188 }
1189
1190 function cdmGetVisibleArticles() {
1191         var sel_articles = new Array();
1192         var container = $("headlinesInnerContainer");
1193
1194         if (!container) return sel_articles;
1195
1196         for (i = 0; i < container.childNodes.length; i++) {
1197                 var child = container.childNodes[i];
1198
1199                 if (child.id && child.id.match("RROW-")) {
1200                         var c_id = child.id.replace("RROW-", "");
1201                         sel_articles.push(c_id);
1202                 }
1203         }
1204
1205         return sel_articles;
1206 }
1207
1208 function cdmGetUnreadArticles() {
1209         var sel_articles = new Array();
1210         var container = $("headlinesInnerContainer");
1211
1212         for (i = 0; i < container.childNodes.length; i++) {
1213                 var child = container.childNodes[i];
1214
1215                 if (child.id && child.id.match("RROW-") && child.className.match("Unread")) {
1216                         var c_id = child.id.replace("RROW-", "");
1217                         sel_articles.push(c_id);
1218                 }
1219         }
1220
1221         return sel_articles;
1222 }
1223
1224
1225 // mode = all,none,unread
1226 function cdmSelectArticles(mode) {
1227         var container = $("headlinesInnerContainer");
1228
1229         for (i = 0; i < container.childNodes.length; i++) {
1230                 var child = container.childNodes[i];
1231
1232                 if (child.id && child.id.match("RROW-")) {
1233                         var aid = child.id.replace("RROW-", "");
1234
1235                         var cb = $("RCHK-" + aid);
1236
1237                         if (mode == "all") {
1238                                 if (!child.className.match("Selected")) {
1239                                         child.className = child.className + "Selected";
1240                                         cb.checked = true;
1241                                 }
1242                         } else if (mode == "unread") {
1243                                 if (child.className.match("Unread") && !child.className.match("Selected")) {
1244                                         child.className = child.className + "Selected";
1245                                         cb.checked = true;
1246                                 }
1247                         } else {
1248                                 child.className = child.className.replace("Selected", "");
1249                                 cb.checked = false;
1250                         }
1251                 }
1252         }
1253 }
1254
1255 function catchupPage() {
1256
1257         var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
1258
1259         var str = __("Mark all visible articles in %s as read?");
1260
1261         str = str.replace("%s", fn);
1262
1263         if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1264                 return;
1265         }
1266
1267         if ($("headlinesList")) {
1268                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, 'Unread', true);
1269                 selectionToggleUnread(false, false, 'viewCurrentFeed()', true);
1270                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
1271         } else {
1272                 cdmSelectArticles('all');
1273                 selectionToggleUnread(true, false, 'viewCurrentFeed()', true)
1274                 cdmSelectArticles('none');
1275         }
1276 }
1277
1278 function deleteSelection() {
1279
1280         try {
1281
1282                 var rows;
1283
1284                 if ($("headlinesList")) {
1285                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1286                 } else {
1287                         rows = cdmGetSelectedArticles();
1288                 }
1289
1290                 if (rows.length == 0) {
1291                         alert(__("No articles are selected."));
1292                         return;
1293                 }
1294
1295
1296                 var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
1297                 var str;
1298                 var op;
1299
1300                 if (getActiveFeedId() != 0) {
1301                         str = __("Delete %d selected articles in %s?");
1302                 } else {
1303                         str = __("Delete %d selected articles?");
1304                 }
1305
1306                 str = str.replace("%d", rows.length);
1307                 str = str.replace("%s", fn);
1308
1309                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1310                         return;
1311                 }
1312
1313                 query = "?op=rpc&subop=delete&ids=" + param_escape(rows);
1314
1315                 console.log(query);
1316
1317                 new Ajax.Request("backend.php", {
1318                         parameters: query,
1319                         onComplete: function(transport) {
1320                                         viewCurrentFeed();
1321                                 } });
1322
1323         } catch (e) {
1324                 exception_error("deleteSelection", e);
1325         }
1326 }
1327
1328 function archiveSelection() {
1329
1330         try {
1331
1332                 var rows;
1333
1334                 if ($("headlinesList")) {
1335                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1336                 } else {
1337                         rows = cdmGetSelectedArticles();
1338                 }
1339
1340                 if (rows.length == 0) {
1341                         alert(__("No articles are selected."));
1342                         return;
1343                 }
1344
1345
1346                 var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
1347                 var str;
1348                 var op;
1349
1350                 if (getActiveFeedId() != 0) {
1351                         str = __("Archive %d selected articles in %s?");
1352                         op = "archive";
1353                 } else {
1354                         str = __("Move %d archived articles back?");
1355                         op = "unarchive";
1356                 }
1357
1358                 str = str.replace("%d", rows.length);
1359                 str = str.replace("%s", fn);
1360
1361                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1362                         return;
1363                 }
1364
1365                 query = "?op=rpc&subop="+op+"&ids=" + param_escape(rows);
1366
1367                 console.log(query);
1368
1369                 for (var i = 0; i < rows.length; i++) {
1370                         cache_invalidate(rows[i]);
1371                 }
1372
1373                 new Ajax.Request("backend.php", {
1374                         parameters: query,
1375                         onComplete: function(transport) {
1376                                         viewCurrentFeed();
1377                                 } });
1378
1379         } catch (e) {
1380                 exception_error("archiveSelection", e);
1381         }
1382 }
1383
1384 function catchupSelection() {
1385
1386         try {
1387
1388                 var rows;
1389
1390                 if ($("headlinesList")) {
1391                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1392                 } else {
1393                         rows = cdmGetSelectedArticles();
1394                 }
1395
1396                 if (rows.length == 0) {
1397                         alert(__("No articles are selected."));
1398                         return;
1399                 }
1400
1401
1402                 var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
1403
1404                 var str = __("Mark %d selected articles in %s as read?");
1405
1406                 str = str.replace("%d", rows.length);
1407                 str = str.replace("%s", fn);
1408
1409                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1410                         return;
1411                 }
1412
1413                 if ($("headlinesList")) {
1414                         selectionToggleUnread(false, false, 'viewCurrentFeed()', true);
1415                 } else {
1416                         selectionToggleUnread(true, false, 'viewCurrentFeed()', true)
1417                 }
1418
1419         } catch (e) {
1420                 exception_error("catchupSelection", e);
1421         }
1422 }
1423
1424 function editArticleTags(id, feed_id, cdm_enabled) {
1425         displayDlg('editArticleTags', id,
1426                            function () {
1427                                    new Ajax.Autocompleter('tags_str', 'tags_choices',
1428                                            "backend.php?op=rpc&subop=completeTags",
1429                                            { tokens: ',', paramName: "search" });
1430                            });
1431 }
1432
1433 function editTagsSave() {
1434
1435         notify_progress("Saving article tags...");
1436
1437         var form = document.forms["tag_edit_form"];
1438
1439         var query = Form.serialize("tag_edit_form");
1440
1441         query = "?op=rpc&subop=setArticleTags&" + query;
1442
1443         console.log(query);
1444
1445         new Ajax.Request("backend.php", {
1446                 parameters: query,
1447                 onComplete: function(transport) {
1448                                 try {
1449                                         console.log("tags saved...");
1450
1451                                         closeInfoBox();
1452                                         notify("");
1453
1454                                         if (tagsAreDisplayed()) {
1455                                                 _reload_feedlist_after_view = true;
1456                                         }
1457
1458                                         if (transport.responseXML) {
1459                                                 var tags_str = transport.responseXML.getElementsByTagName("tags-str")[0];
1460
1461                                                 if (tags_str) {
1462                                                         var id = tags_str.getAttribute("id");
1463
1464                                                         if (id) {
1465                                                                 var tags = $("ATSTR-" + id);
1466                                                                 if (tags) {
1467                                                                         tags.innerHTML = tags_str.firstChild.nodeValue;
1468                                                                 }
1469
1470                                                                 cache_invalidate(id);
1471                                                         }
1472                                                 }
1473                                         }
1474
1475                                 } catch (e) {
1476                                         exception_error("editTagsSave", e);
1477                                 }
1478                         } });
1479 }
1480
1481 function editTagsInsert() {
1482         try {
1483
1484                 var form = document.forms["tag_edit_form"];
1485
1486                 var found_tags = form.found_tags;
1487                 var tags_str = form.tags_str;
1488
1489                 var tag = found_tags[found_tags.selectedIndex].value;
1490
1491                 if (tags_str.value.length > 0 &&
1492                                 tags_str.value.lastIndexOf(", ") != tags_str.value.length - 2) {
1493
1494                         tags_str.value = tags_str.value + ", ";
1495                 }
1496
1497                 tags_str.value = tags_str.value + tag + ", ";
1498
1499                 found_tags.selectedIndex = 0;
1500
1501         } catch (e) {
1502                 exception_error("editTagsInsert", e);
1503         }
1504 }
1505
1506 function cdmScrollViewport(where) {
1507         console.log("cdmScrollViewport: " + where);
1508
1509         var ctr = $("headlinesInnerContainer");
1510
1511         if (!ctr) return;
1512
1513         if (where == "bottom") {
1514                 ctr.scrollTop = ctr.scrollHeight;
1515         } else {
1516                 ctr.scrollTop = where;
1517         }
1518 }
1519
1520 function cdmArticleIsBelowViewport(id) {
1521         try {
1522                 var ctr = $("headlinesInnerContainer");
1523                 var e = $("RROW-" + id);
1524
1525                 if (!e || !ctr) return;
1526
1527                 // article starts below viewport
1528
1529                 if (ctr.scrollTop < e.offsetTop) {
1530                         return true;
1531                 } else {
1532                         return false;
1533                 }
1534
1535         } catch (e) {
1536                 exception_error("cdmArticleIsVisible", e);
1537         }
1538 }
1539
1540 function cdmArticleIsAboveViewport(id) {
1541         try {
1542                 var ctr = $("headlinesInnerContainer");
1543                 var e = $("RROW-" + id);
1544
1545                 if (!e || !ctr) return;
1546
1547                 // article starts above viewport
1548
1549                 if (ctr.scrollTop > e.offsetTop + e.offsetHeight) {
1550                         return true;
1551                 } else {
1552                         return false;
1553                 }
1554
1555         } catch (e) {
1556                 exception_error("cdmArticleIsVisible", e);
1557         }
1558 }
1559
1560 function cdmScrollToArticleId(id) {
1561         try {
1562                 var ctr = $("headlinesInnerContainer");
1563                 var e = $("RROW-" + id);
1564
1565                 if (!e || !ctr) return;
1566
1567                 ctr.scrollTop = e.offsetTop;
1568
1569         } catch (e) {
1570                 exception_error("cdmScrollToArticleId", e);
1571         }
1572 }
1573
1574 function cdmArticleIsActuallyVisible(id) {
1575         try {
1576                 var ctr = $("headlinesInnerContainer");
1577                 var e = $("RROW-" + id);
1578
1579                 if (!e || !ctr) return;
1580
1581                 // article fits in viewport OR article is longer than viewport and
1582                 // its bottom is visible
1583
1584                 if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <=
1585                                 ctr.scrollTop + ctr.offsetHeight) {
1586
1587                         return true;
1588
1589                 } else if (e.offsetHeight > ctr.offsetHeight &&
1590                                 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1591                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
1592
1593                         return true;
1594
1595                 }
1596
1597                 return false;
1598
1599         } catch (e) {
1600                 exception_error("cdmArticleIsVisible", e);
1601         }
1602 }
1603
1604 function cdmWatchdog() {
1605
1606         try {
1607
1608                 var ctr = $("headlinesInnerContainer");
1609
1610                 if (!ctr) return;
1611
1612                 var ids = new Array();
1613
1614                 var e = ctr.firstChild;
1615
1616                 while (e) {
1617                         if (e.className && e.className == "cdmArticleUnread" && e.id &&
1618                                         e.id.match("RROW-")) {
1619
1620                                 // article fits in viewport OR article is longer than viewport and
1621                                 // its bottom is visible
1622
1623                                 if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <=
1624                                                 ctr.scrollTop + ctr.offsetHeight) {
1625
1626 //                                      console.log(e.id + " is visible " + e.offsetTop + "." +
1627 //                                              (e.offsetTop + e.offsetHeight) + " vs " + ctr.scrollTop + "." +
1628 //                                              (ctr.scrollTop + ctr.offsetHeight));
1629
1630                                         ids.push(e.id.replace("RROW-", ""));
1631
1632                                 } else if (e.offsetHeight > ctr.offsetHeight &&
1633                                                 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1634                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
1635
1636                                         ids.push(e.id.replace("RROW-", ""));
1637
1638                                 }
1639
1640                                 // method 2: article bottom is visible and is in upper 1/2 of the viewport
1641
1642 /*                              if (e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1643                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight/2) {
1644
1645                                         ids.push(e.id.replace("RROW-", ""));
1646
1647                                 } */
1648
1649                         }
1650
1651                         e = e.nextSibling;
1652                 }
1653
1654                 console.log("cdmWatchdog, ids= " + ids.toString());
1655
1656                 if (ids.length > 0) {
1657
1658                         for (var i = 0; i < ids.length; i++) {
1659                                 var e = $("RROW-" + ids[i]);
1660                                 if (e) {
1661                                         e.className = e.className.replace("Unread", "");
1662                                 }
1663                         }
1664
1665                         var query = "?op=rpc&subop=catchupSelected" +
1666                                 "&cmode=0" + "&ids=" + param_escape(ids.toString());
1667
1668                         new Ajax.Request("backend.php", {
1669                                 parameters: query,
1670                                 onComplete: function(transport) {
1671                                         all_counters_callback2(transport);
1672                                 } });
1673
1674                 }
1675
1676                 _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 4000);
1677
1678         } catch (e) {
1679                 exception_error("cdmWatchdog", e);
1680         }
1681
1682 }
1683
1684
1685 function cache_inject(id, article, param) {
1686         try {
1687                 if (!cache_check_param(id, param)) {
1688                         console.log("cache_article: miss: " + id + " [p=" + param + "]");
1689
1690                         if (db) {
1691
1692                            var date = new Date();
1693                       var ts = Math.round(date.getTime() / 1000);
1694
1695                                 db.execute("INSERT INTO cache (id, article, param, added) VALUES (?, ?, ?, ?)",
1696                                         [id, article, param, ts]);
1697                         } else {
1698
1699                                 var cache_obj = new Array();
1700
1701                                 cache_obj["id"] = id;
1702                                 cache_obj["data"] = article;
1703                                 cache_obj["param"] = param;
1704
1705                                 article_cache.push(cache_obj);
1706                         }
1707
1708                 } else {
1709                         console.log("cache_article: hit: " + id + " [p=" + param + "]");
1710                 }
1711         } catch (e) {
1712                 exception_error("cache_inject", e);
1713         }
1714 }
1715
1716 function cache_find(id) {
1717
1718         if (db) {
1719                 var rs = db.execute("SELECT article FROM cache WHERE id = ?", [id]);
1720                 var a = false;
1721
1722                 if (rs.isValidRow()) {
1723                         var a = rs.field(0);
1724                 }
1725
1726                 rs.close();
1727
1728                 return a;
1729
1730         } else {
1731                 for (var i = 0; i < article_cache.length; i++) {
1732                         if (article_cache[i]["id"] == id) {
1733                                 return article_cache[i]["data"];
1734                         }
1735                 }
1736         }
1737         return false;
1738 }
1739
1740 function cache_find_param(id, param) {
1741
1742         if (db) {
1743                 var rs = db.execute("SELECT article FROM cache WHERE id = ? AND param = ?",
1744                         [id, param]);
1745                 var a = false;
1746
1747                 if (rs.isValidRow()) {
1748                         a = rs.field(0);
1749                 }
1750
1751                 rs.close();
1752
1753                 return a;
1754
1755         } else {
1756                 for (var i = 0; i < article_cache.length; i++) {
1757                         if (article_cache[i]["id"] == id && article_cache[i]["param"] == param) {
1758                                 return article_cache[i]["data"];
1759                         }
1760                 }
1761         }
1762         return false;
1763 }
1764
1765 function cache_check(id) {
1766
1767         if (db) {
1768                 var rs = db.execute("SELECT COUNT(*) AS c FROM cache WHERE id = ?",
1769                         [id]);
1770                 var a = false;
1771
1772                 if (rs.isValidRow()) {
1773                          a = rs.field(0) != "0";
1774                 }
1775
1776                 rs.close();
1777
1778                 return a;
1779
1780         } else {
1781                 for (var i = 0; i < article_cache.length; i++) {
1782                         if (article_cache[i]["id"] == id) {
1783                                 return true;
1784                         }
1785                 }
1786         }
1787         return false;
1788 }
1789
1790 function cache_check_param(id, param) {
1791
1792         if (db) {
1793                 var rs = db.execute("SELECT COUNT(*) AS c FROM cache WHERE id = ? AND param = ?",
1794                         [id, param]);
1795                 var a = false;
1796
1797                 if (rs.isValidRow()) {
1798                         a = rs.field(0) != "0";
1799                 }
1800
1801                 rs.close();
1802
1803                 return a;
1804
1805         } else {
1806                 for (var i = 0; i < article_cache.length; i++) {
1807                         if (article_cache[i]["id"] == id && article_cache[i]["param"] == param) {
1808                                 return true;
1809                         }
1810                 }
1811         }
1812         return false;
1813 }
1814
1815 function cache_expire() {
1816         if (db) {
1817                 var date = new Date();
1818                 var ts = Math.round(date.getTime() / 1000);
1819
1820                 db.execute("DELETE FROM cache WHERE added < ? - 1800 AND id LIKE 'FEEDLIST'", [ts]);
1821                 db.execute("DELETE FROM cache WHERE added < ? - 600 AND (id LIKE 'F:%' OR id LIKE 'C:%')", [ts]);
1822                 db.execute("DELETE FROM cache WHERE added < ? - 86400", [ts]);
1823
1824
1825         } else {
1826                 while (article_cache.length > 25) {
1827                         article_cache.shift();
1828                 }
1829         }
1830 }
1831
1832 function cache_flush() {
1833         article_cache = new Array();
1834 }
1835
1836 function cache_invalidate(id) {
1837         try {
1838
1839                 if (db) {
1840                         rs = db.execute("DELETE FROM cache WHERE id = ?", [id]);
1841                         return rs.rowsAffected != 0;
1842                 } else {
1843
1844                         var i = 0
1845
1846                         while (i < article_cache.length) {
1847                                 if (article_cache[i]["id"] == id) {
1848                                         console.log("cache_invalidate: removed id " + id);
1849                                         article_cache.splice(i, 1);
1850                                         return true;
1851                                 }
1852                                 i++;
1853                         }
1854                 }
1855
1856                 console.log("cache_invalidate: id not found: " + id);
1857                 return false;
1858         } catch (e) {
1859                 exception_error("cache_invalidate", e);
1860         }
1861 }
1862
1863 function getActiveArticleId() {
1864         return active_post_id;
1865 }
1866
1867 function cdmClicked(id) {
1868         try {
1869                 var elem = $("RROW-" + id);
1870
1871                 if (elem) {
1872                         var id = elem.id.replace("RROW-", "");
1873                         active_post_id = id;
1874
1875 //                      cdmSelectArticles("none");
1876                         toggleUnread(id, 0, true);
1877 //                      toggleSelected(id);
1878
1879                 }
1880         } catch (e) {
1881                 exception_error("cdmClicked", e);
1882         }
1883 }
1884
1885 function preloadArticleUnderPointer(id) {
1886         try {
1887                 if (getInitParam("bw_limit") == "1") return;
1888
1889                 if (post_under_pointer == id && !cache_check(id)) {
1890
1891                         console.log("trying to preload article " + id);
1892
1893                         var neighbor_ids = getRelativePostIds(id, 1);
1894
1895                         /* only request uncached articles */
1896
1897                         var cids_to_request = Array();
1898
1899                         for (var i = 0; i < neighbor_ids.length; i++) {
1900                                 if (!cache_check(neighbor_ids[i])) {
1901                                         cids_to_request.push(neighbor_ids[i]);
1902                                 }
1903                         }
1904                         console.log("additional ids: " + cids_to_request.toString());
1905
1906                         cids_to_request.push(id);
1907
1908                         var query = "?op=rpc&subop=getArticles&ids=" +
1909                                 cids_to_request.toString();
1910
1911                         new Ajax.Request("backend.php", {
1912                                 parameters: query,
1913                                 onComplete: function(transport) {
1914                                         var articles = transport.responseXML.getElementsByTagName("article");
1915
1916                                         for (var i = 0; i < articles.length; i++) {
1917                                                 var id = articles[i].getAttribute("id");
1918                                                 if (!cache_check(id)) {
1919                                                         cache_inject(id, articles[i].firstChild.nodeValue);
1920                                                         console.log("preloaded article: " + id);
1921                                                 }
1922                                         }
1923                         } });
1924                 }
1925         } catch (e) {
1926                 exception_error("preloadArticleUnderPointer", e);
1927         }
1928 }
1929
1930 function postMouseIn(id) {
1931         try {
1932                 if (post_under_pointer != id) {
1933                         post_under_pointer = id;
1934                         if (!isCdmMode()) {
1935                                 window.setTimeout("preloadArticleUnderPointer(" + id + ")", 250);
1936                         }
1937                 }
1938
1939         } catch (e) {
1940                 exception_error("postMouseIn", e);
1941         }
1942 }
1943
1944 function postMouseOut(id) {
1945         try {
1946                 post_under_pointer = false;
1947         } catch (e) {
1948                 exception_error("postMouseOut", e);
1949         }
1950 }
1951
1952 function headlines_scroll_handler() {
1953         try {
1954
1955                 var e = $("headlinesInnerContainer");
1956
1957                 var toolbar_form = document.forms["main_toolbar_form"];
1958
1959                 console.log((e.scrollTop + e.offsetHeight) + " vs " + e.scrollHeight + " dis? " +
1960                         _infscroll_disable);
1961
1962                 if (e.scrollTop + e.offsetHeight > e.scrollHeight - 100) {
1963                         if (!_infscroll_disable) {
1964                                 console.log("more cowbell!");
1965                                 viewNextFeedPage();
1966                         }
1967                 }
1968
1969         } catch (e) {
1970                 exception_error("headlines_scroll_handler", e);
1971         }
1972 }
1973
1974 function catchupRelativeToArticle(below) {
1975
1976         try {
1977
1978
1979                 if (!getActiveArticleId()) {
1980                         alert(__("No article is selected."));
1981                         return;
1982                 }
1983
1984                 var visible_ids;
1985
1986                 if ($("headlinesList")) {
1987                         visible_ids = getVisibleHeadlineIds();
1988                 } else {
1989                         visible_ids = cdmGetVisibleArticles();
1990                 }
1991
1992                 var ids_to_mark = new Array();
1993
1994                 if (!below) {
1995                         for (var i = 0; i < visible_ids.length; i++) {
1996                                 if (visible_ids[i] != getActiveArticleId()) {
1997                                         var e = $("RROW-" + visible_ids[i]);
1998
1999                                         if (e && e.className.match("Unread")) {
2000                                                 ids_to_mark.push(visible_ids[i]);
2001                                         }
2002                                 } else {
2003                                         break;
2004                                 }
2005                         }
2006                 } else {
2007                         for (var i = visible_ids.length-1; i >= 0; i--) {
2008                                 if (visible_ids[i] != getActiveArticleId()) {
2009                                         var e = $("RROW-" + visible_ids[i]);
2010
2011                                         if (e && e.className.match("Unread")) {
2012                                                 ids_to_mark.push(visible_ids[i]);
2013                                         }
2014                                 } else {
2015                                         break;
2016                                 }
2017                         }
2018                 }
2019
2020                 if (ids_to_mark.length == 0) {
2021                         alert(__("No articles found to mark"));
2022                 } else {
2023                         var msg = __("Mark %d article(s) as read?").replace("%d", ids_to_mark.length);
2024
2025                         if (getInitParam("confirm_feed_catchup") != 1 || confirm(msg)) {
2026
2027                                 for (var i = 0; i < ids_to_mark.length; i++) {
2028                                         var e = $("RROW-" + ids_to_mark[i]);
2029                                         e.className = e.className.replace("Unread", "");
2030                                 }
2031
2032                                 var query = "?op=rpc&subop=catchupSelected" +
2033                                         "&cmode=0" + "&ids=" + param_escape(ids_to_mark.toString());
2034
2035                                 new Ajax.Request("backend.php", {
2036                                         parameters: query,
2037                                         onComplete: function(transport) {
2038                                                 catchup_callback2(transport);
2039                                         } });
2040
2041                         }
2042                 }
2043
2044         } catch (e) {
2045                 exception_error("catchupRelativeToArticle", e);
2046         }
2047 }
2048
2049 function cdmExpandArticle(a_id) {
2050         try {
2051                 var id = 'CICD-' + a_id;
2052
2053                 try {
2054                         Element.hide("CEXC-" + a_id);
2055                 } catch (e) { }
2056
2057                 Effect.Appear(id, {duration : 0.5,
2058                         beforeStart: function(effect) {
2059                                 var h_id = 'CICH-' + a_id;
2060                                 var h_elem = $(h_id);
2061                                 if (h_elem) { h_elem.style.display = "none"; }
2062
2063                                 toggleUnread(a_id, 0);
2064                         }});
2065
2066
2067         } catch (e) {
2068                 exception_error("cdmExpandArticle", e);
2069         }
2070
2071 }
2072
2073 function fixHeadlinesOrder(ids) {
2074         try {
2075                 for (var i = 0; i < ids.length; i++) {
2076                         var e = $("RROW-" + ids[i]);
2077
2078                         if (e) {
2079                                 if (i % 2 == 0) {
2080                                         e.className = e.className.replace("even", "odd");
2081                                 } else {
2082                                         e.className = e.className.replace("odd", "even");
2083                                 }
2084                         }
2085                 }
2086         } catch (e) {
2087                 exception_error("fixHeadlinesOrder", e);
2088         }
2089 }
2090
2091 function hideReadHeadlines() {
2092         try {
2093
2094                 var ids = false;
2095                 var vis_ids = new Array();
2096
2097                 if ($("headlinesList")) {
2098                         ids = getVisibleHeadlineIds();
2099                 } else {
2100                         ids = cdmGetVisibleArticles();
2101                 }
2102
2103                 var read_headlines_visible = true;
2104
2105                 for (var i = 0; i < ids.length; i++) {
2106                         var row = $("RROW-" + ids[i]);
2107
2108                         if (row && row.className) {
2109                                 if (read_headlines_visible) {
2110                                         if (row.className.match("Unread") || row.className.match("Selected")) {
2111                                                 Element.show(row);
2112                                                 vis_ids.push(ids[i]);
2113                                         } else {
2114                                                 //Effect.Fade(row, {duration : 0.3});
2115                                                 Element.hide(row);
2116                                         }
2117                                 } else {
2118                                         Element.show(row);
2119                                         vis_ids.push(ids[i]);
2120                                 }
2121                         }
2122                 }
2123
2124                 fixHeadlinesOrder(vis_ids);
2125
2126                 read_headlines_visible = !read_headlines_visible;
2127
2128         } catch (e) {
2129                 exception_error("hideReadHeadlines", e);
2130         }
2131 }
2132
2133 function invertHeadlineSelection() {
2134         try {
2135                 var rows = new Array();
2136                 var r = false;
2137
2138                 if (!isCdmMode()) {
2139                         r = document.getElementsByTagName("TR");
2140                 } else {
2141                         r = document.getElementsByTagName("DIV");
2142                 }
2143
2144                 for (var i = 0; i < r.length; i++) {
2145                         if (r[i].id && r[i].id.match("RROW-")) {
2146                                 rows.push(r[i]);
2147                         }
2148                 }
2149
2150                 for (var i = 0; i < rows.length; i++) {
2151                         var nc = rows[i].className;
2152                         var id = rows[i].id.replace("RROW-", "");
2153                         var cb = $("RCHK-" + id);
2154
2155                         if (!rows[i].className.match("Selected")) {
2156                                 nc = nc + "Selected";
2157                                 cb.checked = true;
2158                         } else {
2159                                 nc = nc.replace("Selected", "");
2160                                 cb.checked = false;
2161                         }
2162
2163                         rows[i].className = nc;
2164
2165                 }
2166
2167         } catch (e) {
2168                 exception_error("invertHeadlineSelection", e);
2169         }
2170 }
2171
2172 function getArticleUnderPointer() {
2173         return post_under_pointer;
2174 }
2175
2176 function zoomToArticle(id) {
2177         try {
2178                 var w = window.open("backend.php?op=view&mode=zoom&id=" + param_escape(id),
2179                         "ttrss_zoom_" + id,
2180                         "status=0,toolbar=0,location=0,width=450,height=300,scrollbars=1,menubar=0");
2181
2182         } catch (e) {
2183                 exception_error("zoomToArticle", e);
2184         }
2185 }
2186
2187 function scrollArticle(offset) {
2188         try {
2189                 if (!isCdmMode()) {
2190                         var ci = $("content-insert");
2191                         if (ci) {
2192                                 ci.scrollTop += offset;
2193                         }
2194                 } else {
2195                         var hi = $("headlinesInnerContainer");
2196                         if (hi) {
2197                                 hi.scrollTop += offset;
2198                         }
2199
2200                 }
2201         } catch (e) {
2202                 exception_error("scrollArticle", e);
2203         }
2204 }
2205
2206 function show_labels_in_headlines(transport) {
2207         try {
2208                 if (transport.responseXML) {
2209                         var info = transport.responseXML.getElementsByTagName("info-for-headlines")[0];
2210
2211                         var elems = info.getElementsByTagName("entry");
2212
2213                         for (var l = 0; l < elems.length; l++) {
2214                                 var e_id = elems[l].getAttribute("id");
2215
2216                                 if (e_id) {
2217
2218                                         var ctr = $("HLLCTR-" + e_id);
2219
2220                                         if (ctr) {
2221                                                 ctr.innerHTML = elems[l].firstChild.nodeValue;
2222                                         }
2223                                 }
2224
2225                         }
2226
2227                 }
2228         } catch (e) {
2229                 exception_error("show_labels_in_headlines", e);
2230
2231         }
2232 }
2233
2234 function toggleHeadlineActions() {
2235         try {
2236                 var e = $("headlineActionsBody");
2237                 var p = $("headlineActionsDrop");
2238
2239                 if (!Element.visible(e)) {
2240                         Element.show(e);
2241                 } else {
2242                         Element.hide(e);
2243                 }
2244
2245                 e.scrollTop = 0;
2246                 e.style.left = (p.offsetLeft + 1) + "px";
2247                 e.style.top = (p.offsetTop + p.offsetHeight + 2) + "px";
2248
2249         } catch (e) {
2250                 exception_error("toggleHeadlineActions", e);
2251         }
2252 }
2253
2254 function publishWithNote(id, def_note) {
2255         try {
2256                 if (!def_note) def_note = '';
2257
2258                 var note = prompt(__("Please enter a note for this article:"), def_note);
2259
2260                 if (note != undefined) {
2261                         togglePub(id, false, false, note);
2262                 }
2263
2264         } catch (e) {
2265                 exception_error("publishWithNote", e);
2266         }
2267 }
2268
2269 function emailArticle(id) {
2270         try {
2271                 if (!id) {
2272                         var ids = getSelectedArticleIds2();
2273
2274                         if (ids.length == 0) {
2275                                 alert(__("No articles are selected."));
2276                                 return;
2277                         }
2278
2279                         id = ids.toString();
2280                 }
2281
2282                 displayDlg('emailArticle', id,
2283                    function () {
2284                                 document.forms['article_email_form'].destination.focus();
2285
2286                            new Ajax.Autocompleter('destination', 'destination_choices',
2287                                    "backend.php?op=rpc&subop=completeEmails",
2288                                    { tokens: '', paramName: "search" });
2289
2290                         });
2291
2292         } catch (e) {
2293                 exception_error("emailArticle", e);
2294         }
2295 }
2296
2297 function emailArticleDo() {
2298         try {
2299                 var f = document.forms['article_email_form'];
2300
2301                 if (f.destination.value == "") {
2302                         alert("Please fill in the destination email.");
2303                         return;
2304                 }
2305
2306                 if (f.subject.value == "") {
2307                         alert("Please fill in the subject.");
2308                         return;
2309                 }
2310
2311                 var query = Form.serialize("article_email_form");
2312
2313 //              console.log(query);
2314
2315                 new Ajax.Request("backend.php", {
2316                         parameters: query,
2317                         onComplete: function(transport) {
2318                                 try {
2319
2320                                         var error = transport.responseXML.getElementsByTagName('error')[0];
2321
2322                                         if (error) {
2323                                                 alert(__('Error sending email:') + ' ' + error.firstChild.nodeValue);
2324                                         } else {
2325                                                 notify_info('Your message has been sent.');
2326                                                 closeInfoBox();
2327                                         }
2328
2329                                 } catch (e) {
2330                                         exception_error("sendEmailDo", e);
2331                                 }
2332
2333                         } });
2334
2335         } catch (e) {
2336                 exception_error("emailArticleDo", e);
2337         }
2338 }