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