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