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