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 var preload_id_batch = [];
  19 var preload_timeout_id = false;
  20
  21 var cache_added = [];
  22
  23 function catchup_callback2(transport, callback) {
  24         try {
  25                 console.log("catchup_callback2 " + transport + ", " + callback);
  26                 notify("");
  27                 handle_rpc_reply(transport);
  28                 if (callback) {
  29                         setTimeout(callback, 10);
  30                 }
  31         } catch (e) {
  32                 exception_error("catchup_callback2", e, transport);
  33         }
  34 }
  35
  36 function clean_feed_selections() {
  37         try {
  38                 var feeds = $("feedList").getElementsByTagName("LI");
  39
  40                 for (var i = 0; i < feeds.length; i++) {
  41                         if (feeds[i].id && feeds[i].id.match("FEEDR-")) {
  42                                 feeds[i].className = feeds[i].className.replace("Selected", "");
  43                         }
  44                         if (feeds[i].id && feeds[i].id.match("FCAT-")) {
  45                                 feeds[i].className = feeds[i].className.replace("Selected", "");
  46                         }
  47                 }
  48         } catch (e) {
  49                 exception_error("clean_feed_selections", e);
  50         }
  51 }
  52
  53 function headlines_callback2(transport, feed_cur_page) {
  54         try {
  55
  56                 if (!handle_rpc_reply(transport)) return;
  57
  58                 loading_set_progress(100);
  59
  60                 console.log("headlines_callback2 [page=" + feed_cur_page + "]");
  61
  62                 if (!transport_error_check(transport)) return;
  63
  64                 clean_feed_selections();
  65
  66                 var is_cat = false;
  67                 var feed_id = false;
  68
  69                 if (transport.responseXML) {
  70                         var headlines = transport.responseXML.getElementsByTagName("headlines")[0];
  71                         if (headlines) {
  72                                 is_cat = headlines.getAttribute("is_cat");
  73                                 feed_id = headlines.getAttribute("id");
  74                                 setActiveFeedId(feed_id, is_cat);
  75                         }
  76                 }
  77
  78                 var ll = $('FLL-' + feed_id);
  79
  80                 if (!is_cat) {
  81                         var feedr = $("FEEDR-" + feed_id);
  82                         if (feedr && !feedr.className.match("Selected")) {
  83                                 feedr.className = feedr.className + "Selected";
  84                         }
  85                         if (feedr && ll) feedr.removeChild(ll);
  86                 } else {
  87                         var feedr = $("FCAT-" + feed_id);
  88                         if (feedr && !feedr.className.match("Selected")) {
  89                                 feedr.className = feedr.className + "Selected";
  90                         }
  91
  92                         var fcap = $("FCAP-" + feed_id);
  93                         if (fcap && ll) fcap.removeChild(ll);
  94
  95                 }
  96
  97                 var img = $('FIMG-' + feed_id);
  98
  99                 if (img && !is_cat) {
 100                         img.src = img.alt;
 101                 }
 102
 103                 var f = $("headlines-frame");
 104                 try {
 105                         if (feed_cur_page == 0) {
 106                                 //console.log("resetting headlines scrollTop");
 107                                 f.scrollTop = 0;
 108                         }
 109                 } catch (e) { };
 110
 111                 if (transport.responseXML) {
 112                         var response = transport.responseXML;
 113
 114                         var headlines = response.getElementsByTagName("headlines")[0];
 115                         var headlines_info = response.getElementsByTagName("headlines-info")[0];
 116
 117                         if (headlines_info)
 118                                 headlines_info = JSON.parse(headlines_info.firstChild.nodeValue);
 119                         else {
 120                                 console.error("didn't find headlines-info object in response");
 121                                 return;
 122                         }
 123
 124                         var headlines_count = headlines_info.count;
 125                         var headlines_unread = headlines_info.unread;
 126                         var disable_cache = headlines_info.disable_cache;
 127
 128                         vgroup_last_feed = headlines_info.vgroup_last_feed;
 129
 130                         if (headlines_count == 0) {
 131                                 _infscroll_disable = 1;
 132                         } else {
 133                                 _infscroll_disable = 0;
 134                         }
 135
 136                         var counters = response.getElementsByTagName("counters")[0];
 137                         var articles = response.getElementsByTagName("article");
 138                         var runtime_info = response.getElementsByTagName("runtime-info");
 139
 140                         if (feed_cur_page == 0) {
 141                                 if (headlines) {
 142                                         f.innerHTML = headlines.firstChild.nodeValue;
 143
 144                                         var cache_prefix = "";
 145
 146                                         if (is_cat) {
 147                                                 cache_prefix = "C:";
 148                                         } else {
 149                                                 cache_prefix = "F:";
 150                                         }
 151
 152                                         cache_invalidate(cache_prefix + feed_id);
 153
 154                                         if (!disable_cache) {
 155                                                 cache_inject(cache_prefix + feed_id,
 156                                                         headlines.firstChild.nodeValue, headlines_unread);
 157                                         }
 158
 159                                 } else {
 160                                         console.warn("headlines_callback: returned no data");
 161                                 f.innerHTML = "<div class='whiteBox'>" + __('Could not update headlines (missing XML data)') + "</div>";
 162
 163                                 }
 164                         } else {
 165                                 if (headlines) {
 166                                         if (headlines_count > 0) {
 167                                                 console.warn("adding some more headlines...");
 168
 169                                                 var c = $("headlinesList");
 170
 171                                                 if (!c) {
 172                                                         c = $("headlinesInnerContainer");
 173                                                 }
 174
 175                                                 var ids = getSelectedArticleIds2();
 176
 177                                                 c.innerHTML = c.innerHTML + headlines.firstChild.nodeValue;
 178
 179                                                 console.log("restore selected ids: " + ids);
 180
 181                                                 for (var i = 0; i < ids.length; i++) {
 182                                                         markHeadline(ids[i]);
 183                                                 }
 184
 185                                         } else {
 186                                                 console.log("no new headlines received");
 187                                         }
 188                                 } else {
 189                                         console.warn("headlines_callback: returned no data");
 190                                         notify_error("Error while trying to load more headlines");
 191                                 }
 192
 193                         }
 194
 195                         if (articles) {
 196                                 for (var i = 0; i < articles.length; i++) {
 197                                         var a_id = articles[i].getAttribute("id");
 198                                         //console.log("found id: " + a_id);
 199                                         cache_inject(a_id, articles[i].firstChild.nodeValue);
 200                                 }
 201                         } else {
 202                                 console.log("no cached articles received");
 203                         }
 204
 205                         if (counters)
 206                                 parse_counters(counters);
 207                         else
 208                                 request_counters();
 209
 210                         if (runtime_info) {
 211                                 parse_runtime_info(runtime_info[0]);
 212                         }
 213
 214                 } else {
 215                         console.warn("headlines_callback: returned no XML object");
 216                         f.innerHTML = "<div class='whiteBox'>" + __('Could not update headlines (missing XML object)') + "</div>";
 217                 }
 218
 219
 220                 if (_cdm_wd_timeout) window.clearTimeout(_cdm_wd_timeout);
 221
 222                 if (!$("headlinesList") &&
 223                                 getActiveFeedId() != -3 &&
 224                                 getInitParam("cdm_auto_catchup") == 1) {
 225                         console.log("starting CDM watchdog");
 226                         _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 5000);
 227                         _cdm_wd_vishist = new Array();
 228                 } else {
 229                         console.log("not in CDM mode or watchdog disabled");
 230                 }
 231
 232                 _feed_cur_page = feed_cur_page;
 233                 _infscroll_request_sent = 0;
 234
 235                 notify("");
 236
 237                 remove_splash();
 238
 239         } catch (e) {
 240                 exception_error("headlines_callback2", e, transport);
 241         }
 242 }
 243
 244 function render_article(article) {
 245         try {
 246                 var f = $("content-frame");
 247                 try {
 248                         f.scrollTop = 0;
 249                 } catch (e) { };
 250
 251                 var fi = $("content-insert");
 252
 253                 try {
 254                         fi.scrollTop = 0;
 255                 } catch (e) { };
 256
 257                 fi.innerHTML = article;
 258
 259 //              article.evalScripts();
 260
 261         } catch (e) {
 262                 exception_error("render_article", e);
 263         }
 264 }
 265
 266 function showArticleInHeadlines(id) {
 267
 268         try {
 269
 270                 cleanSelected("headlinesList");
 271
 272                 var crow = $("RROW-" + id);
 273
 274                 if (!crow) return;
 275
 276                 var article_is_unread = crow.className.match("Unread");
 277
 278                 crow.className = crow.className.replace("Unread", "");
 279
 280                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
 281
 282                 var upd_img_pic = $("FUPDPIC-" + id);
 283
 284                 var cache_prefix = "";
 285
 286                 if (activeFeedIsCat()) {
 287                         cache_prefix = "C:";
 288                 } else {
 289                         cache_prefix = "F:";
 290                 }
 291
 292                 var view_mode = false;
 293
 294                 try {
 295                         view_mode = document.forms['main_toolbar_form'].view_mode;
 296                         view_mode = view_mode[view_mode.selectedIndex].value;
 297                 } catch (e) {
 298                         //
 299                 }
 300
 301                 if (upd_img_pic && (upd_img_pic.src.match("updated.png") ||
 302                                         upd_img_pic.src.match("fresh_sign.png"))) {
 303
 304                         upd_img_pic.src = "images/blank_icon.gif";
 305
 306                         cache_invalidate(cache_prefix + getActiveFeedId());
 307
 308                         cache_inject(cache_prefix + getActiveFeedId(),
 309                                 $("headlines-frame").innerHTML,
 310                                 get_feed_unread(getActiveFeedId()));
 311
 312                 } else if (article_is_unread && view_mode == "all_articles") {
 313
 314                         cache_invalidate(cache_prefix + getActiveFeedId());
 315
 316                         cache_inject(cache_prefix + getActiveFeedId(),
 317                                 $("headlines-frame").innerHTML,
 318                                 get_feed_unread(getActiveFeedId())-1);
 319
 320                 } else if (article_is_unread) {
 321                         cache_invalidate(cache_prefix + getActiveFeedId());
 322                 }
 323
 324                 markHeadline(id);
 325
 326         } catch (e) {
 327                 exception_error("showArticleInHeadlines", e);
 328         }
 329 }
 330
 331 function article_callback2(transport, id) {
 332         try {
 333                 console.log("article_callback2 " + id);
 334
 335                 if (!handle_rpc_reply(transport)) return;
 336
 337                 if (transport.responseXML) {
 338
 339                         if (!transport_error_check(transport)) return;
 340
 341 /*                      var ll = $('LL-' + id);
 342                         var content = $('HLC-' + id);
 343
 344                         if (ll && content) content.removeChild(ll); */
 345
 346                         var upic = $('FUPDPIC-' + id);
 347
 348                         if (upic) {
 349                                 upic.src = 'images/blank_icon.gif';
 350                         }
 351
 352                         if (id != last_requested_article) {
 353                                 console.log("requested article id is out of sequence, aborting");
 354                                 return;
 355                         }
 356
 357                         active_post_id = id;
 358
 359                         //console.log("looking for articles to cache...");
 360
 361                         var articles = transport.responseXML.getElementsByTagName("article");
 362
 363                         for (var i = 0; i < articles.length; i++) {
 364                                 var a_id = articles[i].getAttribute("id");
 365
 366                                 //console.log("found id: " + a_id);
 367
 368                                 if (a_id == active_post_id) {
 369                                         //console.log("active article, rendering...");
 370                                         render_article(articles[i].firstChild.nodeValue);
 371                                 }
 372
 373                                 cache_inject(a_id, articles[i].firstChild.nodeValue);
 374                         }
 375
 376
 377                         showArticleInHeadlines(id);
 378
 379                         if (db) {
 380                                 db.execute("UPDATE articles SET unread = 0 WHERE id = ?", [id]);
 381                         }
 382
 383                         var reply = transport.responseXML.firstChild.firstChild;
 384
 385                 } else {
 386                         console.warn("article_callback: returned no XML object");
 387                         //var f = $("content-frame");
 388                         //f.innerHTML = "<div class='whiteBox'>" + __('Could not display article (missing XML object)') + "</div>";
 389                 }
 390
 391                 var date = new Date();
 392                 last_article_view = date.getTime() / 1000;
 393
 394                 if (_reload_feedlist_after_view) {
 395                         setTimeout('updateFeedList(false, false)', 50);
 396                         _reload_feedlist_after_view = false;
 397                 } else {
 398                         request_counters();
 399                 }
 400
 401                 notify("");
 402         } catch (e) {
 403                 exception_error("article_callback2", e, transport);
 404         }
 405 }
 406
 407 function view(id) {
 408         try {
 409                 console.log("loading article: " + id);
 410
 411                 if (offline_mode) return view_offline(id);
 412
 413                 var cached_article = cache_find(id);
 414
 415                 console.log("cache check result: " + (cached_article != false));
 416
 417                 enableHotkeys();
 418                 hideAuxDlg();
 419
 420                 var query = "?op=view&id=" + param_escape(id);
 421
 422                 var neighbor_ids = getRelativePostIds(active_post_id);
 423
 424                 /* only request uncached articles */
 425
 426                 var cids_to_request = Array();
 427
 428                 for (var i = 0; i < neighbor_ids.length; i++) {
 429                         if (!cache_check(neighbor_ids[i])) {
 430                                 cids_to_request.push(neighbor_ids[i]);
 431                         }
 432                 }
 433
 434                 console.log("additional ids: " + cids_to_request.toString());
 435
 436                 /* additional info for piggyback counters */
 437
 438                 if (tagsAreDisplayed()) {
 439                         query = query + "&omode=lt";
 440                 } else {
 441                         query = query + "&omode=flc";
 442                 }
 443
 444                 query = query + "&cids=" + cids_to_request.toString();
 445
 446                 var crow = $("RROW-" + id);
 447                 var article_is_unread = crow.className.match("Unread");
 448
 449                 showArticleInHeadlines(id);
 450
 451                 if (!cached_article) {
 452
 453                         var upic = $('FUPDPIC-' + id);
 454
 455                         if (upic) {
 456                                 upic.src = getInitParam("sign_progress");
 457                         }
 458
 459                 } else if (cached_article && article_is_unread) {
 460
 461                         query = query + "&mode=prefetch";
 462
 463                         render_article(cached_article);
 464
 465                 } else if (cached_article) {
 466
 467                         query = query + "&mode=prefetch_old";
 468                         render_article(cached_article);
 469
 470                 }
 471
 472                 cache_expire();
 473
 474                 last_requested_article = id;
 475
 476                 new Ajax.Request("backend.php", {
 477                         parameters: query,
 478                         onComplete: function(transport) {
 479                                 article_callback2(transport, id);
 480                         } });
 481
 482                 return false;
 483
 484         } catch (e) {
 485                 exception_error("view", e);
 486         }
 487 }
 488
 489 function tMark(id) {
 490         return toggleMark(id);
 491 }
 492
 493 function tPub(id) {
 494         return togglePub(id);
 495 }
 496
 497 function tMark_afh_off(effect) {
 498         try {
 499                 var elem = effect.effects[0].element;
 500
 501                 //console.log("tMark_afh_off : " + elem.id);
 502
 503                 if (elem) {
 504                         elem.src = elem.src.replace("mark_set", "mark_unset");
 505                         elem.alt = __("Star article");
 506                         Element.show(elem);
 507                 }
 508
 509         } catch (e) {
 510                 exception_error("tMark_afh_off", e);
 511         }
 512 }
 513
 514 function tPub_afh_off(effect) {
 515         try {
 516                 var elem = effect.effects[0].element;
 517
 518                 //console.log("tPub_afh_off : " + elem.id);
 519
 520                 if (elem) {
 521                         elem.src = elem.src.replace("pub_set", "pub_unset");
 522                         elem.alt = __("Publish article");
 523                         Element.show(elem);
 524                 }
 525
 526         } catch (e) {
 527                 exception_error("tPub_afh_off", e);
 528         }
 529 }
 530
 531 function toggleMark(id, client_only, no_effects) {
 532
 533         try {
 534
 535                 var query = "?op=rpc&id=" + id + "&subop=mark";
 536
 537                 query = query + "&afid=" + getActiveFeedId();
 538
 539                 if (tagsAreDisplayed()) {
 540                         query = query + "&omode=tl";
 541                 } else {
 542                         query = query + "&omode=flc";
 543                 }
 544
 545                 var mark_img = $("FMPIC-" + id);
 546
 547                 if (!mark_img) return;
 548
 549                 var vfeedu = $("FEEDU--1");
 550                 var crow = $("RROW-" + id);
 551
 552                 if (mark_img.src.match("mark_unset")) {
 553                         mark_img.src = mark_img.src.replace("mark_unset", "mark_set");
 554                         mark_img.alt = __("Unstar article");
 555                         query = query + "&mark=1";
 556
 557                         if (db) {
 558                                 db.execute("UPDATE articles SET marked = 1 WHERE id = ?", [id]);
 559                         }
 560
 561                 } else {
 562                         mark_img.alt = __("Please wait...");
 563                         query = query + "&mark=0";
 564
 565                         if ($("headlinesList") && !no_effects) {
 566                                 Effect.Puff(mark_img, {duration : 0.25, afterFinish: tMark_afh_off});
 567                         } else {
 568                                 mark_img.src = mark_img.src.replace("mark_set", "mark_unset");
 569                                 mark_img.alt = __("Star article");
 570                         }
 571
 572                         if (db) {
 573                                 db.execute("UPDATE articles SET marked = 0 WHERE id = ?", [id]);
 574                         }
 575
 576                 }
 577
 578                 if (!no_effects) update_local_feedlist_counters();
 579
 580                 if (!client_only) {
 581                         //console.log(query);
 582
 583                         new Ajax.Request("backend.php", {
 584                                 parameters: query,
 585                                 onComplete: function(transport) {
 586                                         handle_rpc_reply(transport);
 587                                 } });
 588
 589                 }
 590
 591         } catch (e) {
 592                 exception_error("toggleMark", e);
 593         }
 594 }
 595
 596 function togglePub(id, client_only, no_effects, note) {
 597
 598         try {
 599
 600                 var query = "?op=rpc&id=" + id + "&subop=publ";
 601
 602                 query = query + "&afid=" + getActiveFeedId();
 603
 604                 if (note != undefined) {
 605                         query = query + "&note=" + param_escape(note);
 606                 } else {
 607                         query = query + "&note=undefined";
 608                 }
 609
 610                 if (tagsAreDisplayed()) {
 611                         query = query + "&omode=tl";
 612                 } else {
 613                         query = query + "&omode=flc";
 614                 }
 615
 616                 var mark_img = $("FPPIC-" + id);
 617
 618                 if (!mark_img) return;
 619
 620                 var vfeedu = $("FEEDU--2");
 621                 var crow = $("RROW-" + id);
 622
 623                 if (mark_img.src.match("pub_unset") || note != undefined) {
 624                         mark_img.src = mark_img.src.replace("pub_unset", "pub_set");
 625                         mark_img.alt = __("Unpublish article");
 626                         query = query + "&pub=1";
 627
 628                 } else {
 629                         mark_img.alt = __("Please wait...");
 630                         query = query + "&pub=0";
 631
 632                         if ($("headlinesList") && !no_effects) {
 633                                 Effect.Puff(mark_img, {duration : 0.25, afterFinish: tPub_afh_off});
 634                         } else {
 635                                 mark_img.src = mark_img.src.replace("pub_set", "pub_unset");
 636                                 mark_img.alt = __("Publish article");
 637                         }
 638                 }
 639
 640                 if (!client_only) {
 641                         new Ajax.Request("backend.php", {
 642                                 parameters: query,
 643                                 onComplete: function(transport) {
 644                                         handle_rpc_reply(transport);
 645
 646                                         var note = transport.responseXML.getElementsByTagName("note")[0];
 647
 648                                         if (note) {
 649                                                 var note_id = note.getAttribute("id");
 650                                                 var note_size = note.getAttribute("size");
 651                                                 var note_content = note.firstChild.nodeValue;
 652
 653                                                 var container = $('POSTNOTE-' + note_id);
 654
 655                                                 cache_invalidate(note_id);
 656
 657                                                 if (container) {
 658                                                         if (note_size == "0") {
 659                                                                 Element.hide(container);
 660                                                         } else {
 661                                                                 container.innerHTML = note_content;
 662                                                                 Element.show(container);
 663                                                         }
 664                                                 }
 665                                         }
 666
 667                                 } });
 668                 }
 669
 670         } catch (e) {
 671                 exception_error("togglePub", e);
 672         }
 673 }
 674
 675 function correctHeadlinesOffset(id) {
 676
 677         try {
 678
 679                 var hlist = $("headlinesList");
 680                 var container = $("headlinesInnerContainer");
 681                 var row = $("RROW-" + id);
 682
 683                 var viewport = container.offsetHeight;
 684
 685                 var rel_offset_top = row.offsetTop - container.scrollTop;
 686                 var rel_offset_bottom = row.offsetTop + row.offsetHeight - container.scrollTop;
 687
 688                 console.log("Rtop: " + rel_offset_top + " Rbtm: " + rel_offset_bottom);
 689                 console.log("Vport: " + viewport);
 690
 691                 if (rel_offset_top <= 0 || rel_offset_top > viewport) {
 692                         container.scrollTop = row.offsetTop;
 693                 } else if (rel_offset_bottom > viewport) {
 694
 695                         /* doesn't properly work with Opera in some cases because
 696                                 Opera fucks up element scrolling */
 697
 698                         container.scrollTop = row.offsetTop + row.offsetHeight - viewport;
 699                 }
 700
 701         } catch (e) {
 702                 exception_error("correctHeadlinesOffset", e);
 703         }
 704
 705 }
 706
 707 function moveToPost(mode) {
 708
 709         try {
 710
 711                 var rows;
 712
 713                 if (isCdmMode()) {
 714                         rows = cdmGetVisibleArticles();
 715                 } else {
 716                         rows = getVisibleHeadlineIds();
 717                 }
 718
 719                 var prev_id = false;
 720                 var next_id = false;
 721
 722                 if (!$('RROW-' + active_post_id)) {
 723                         active_post_id = false;
 724                 }
 725
 726                 if (active_post_id == false) {
 727                         next_id = getFirstVisibleHeadlineId();
 728                         prev_id = getLastVisibleHeadlineId();
 729                 } else {
 730                         for (var i = 0; i < rows.length; i++) {
 731                                 if (rows[i] == active_post_id) {
 732                                         prev_id = rows[i-1];
 733                                         next_id = rows[i+1];
 734                                 }
 735                         }
 736                 }
 737
 738                 if (mode == "next") {
 739                         if (next_id) {
 740                                 if (isCdmMode()) {
 741
 742                                         cdmExpandArticle(next_id);
 743                                         cdmScrollToArticleId(next_id);
 744
 745                                 } else {
 746                                         correctHeadlinesOffset(next_id);
 747                                         view(next_id, getActiveFeedId());
 748                                 }
 749                         }
 750                 }
 751
 752                 if (mode == "prev") {
 753                         if (prev_id) {
 754                                 if (isCdmMode()) {
 755                                         cdmExpandArticle(prev_id);
 756                                         cdmScrollToArticleId(prev_id);
 757                                 } else {
 758                                         correctHeadlinesOffset(prev_id);
 759                                         view(prev_id, getActiveFeedId());
 760                                 }
 761                         }
 762                 }
 763
 764         } catch (e) {
 765                 exception_error("moveToPost", e);
 766         }
 767 }
 768
 769 function toggleSelected(id) {
 770         try {
 771
 772                 var cb = $("RCHK-" + id);
 773
 774                 var row = $("RROW-" + id);
 775                 if (row) {
 776                         var nc = row.className;
 777
 778                         if (!nc.match("Selected")) {
 779                                 nc = nc + "Selected";
 780                                 if (cb) {
 781                                         cb.checked = true;
 782                                 }
 783
 784                                 // In CDM basically last selected article == active article
 785                                 if (isCdmMode()) active_post_id = id;
 786                         } else {
 787                                 nc = nc.replace("Selected", "");
 788                                 if (cb) {
 789                                         cb.checked = false;
 790                                 }
 791
 792                         }
 793
 794                         row.className = nc;
 795                 }
 796         } catch (e) {
 797                 exception_error("toggleSelected", e);
 798         }
 799 }
 800
 801 function toggleUnread_afh(effect) {
 802         try {
 803
 804                 var elem = effect.element;
 805                 elem.style.backgroundColor = "";
 806
 807         } catch (e) {
 808                 exception_error("toggleUnread_afh", e);
 809         }
 810 }
 811
 812 function toggleUnread(id, cmode, effect) {
 813         try {
 814
 815                 var row = $("RROW-" + id);
 816                 if (row) {
 817                         var nc = row.className;
 818                         var is_selected = row.className.match("Selected");
 819                         nc = nc.replace("Unread", "");
 820                         nc = nc.replace("Selected", "");
 821
 822                         // since we are removing selection from the object, uncheck
 823                         // corresponding checkbox
 824
 825                         var cb = $("RCHK-" + id);
 826                         if (cb) {
 827                                 cb.checked = false;
 828                         }
 829
 830                         // NOTE: I'm not sure that resetting selection here is a feature -fox
 831
 832                         if (cmode == undefined || cmode == 2) {
 833                                 if (row.className.match("Unread")) {
 834                                         row.className = nc;
 835
 836                                         if (effect) {
 837                                                 new Effect.Highlight(row, {duration: 1, startcolor: "#fff7d5",
 838                                                         afterFinish: toggleUnread_afh,
 839                                                         queue: { position:'end', scope: 'TMRQ-' + id, limit: 1 } } );
 840                                         }
 841
 842                                 } else {
 843                                         row.className = nc + "Unread";
 844                                 }
 845
 846                                 if (db) {
 847                                         db.execute("UPDATE articles SET unread = not unread "+
 848                                                 "WHERE id = ?", [id]);
 849                                 }
 850
 851                         } else if (cmode == 0) {
 852                                 row.className = nc;
 853
 854                                 if (effect) {
 855                                         new Effect.Highlight(row, {duration: 1, startcolor: "#fff7d5",
 856                                                 afterFinish: toggleUnread_afh,
 857                                                 queue: { position:'end', scope: 'TMRQ-' + id, limit: 1 } } );
 858                                 }
 859
 860                                 if (db) {
 861                                         db.execute("UPDATE articles SET unread = 0 "+
 862                                                 "WHERE id = ?", [id]);
 863                                 }
 864
 865                         } else if (cmode == 1) {
 866                                 row.className = nc + "Unread";
 867
 868                                 if (db) {
 869                                         db.execute("UPDATE articles SET unread = 1 "+
 870                                                 "WHERE id = ?", [id]);
 871                                 }
 872
 873                         }
 874
 875                         update_local_feedlist_counters();
 876
 877                         // Disable unmarking as selected for the time being (16.05.08) -fox
 878                         if (is_selected) row.className = row.className + "Selected";
 879
 880                         if (cmode == undefined) cmode = 2;
 881
 882                         var query = "?op=rpc&subop=catchupSelected" +
 883                                 "&cmode=" + param_escape(cmode) + "&ids=" + param_escape(id);
 884
 885 //                      notify_progress("Loading, please wait...");
 886
 887                         new Ajax.Request("backend.php", {
 888                                 parameters: query,
 889                                 onComplete: function(transport) {
 890                                         handle_rpc_reply(transport);
 891                                 } });
 892
 893                 }
 894
 895         } catch (e) {
 896                 exception_error("toggleUnread", e);
 897         }
 898 }
 899
 900 function selectionRemoveLabel(id) {
 901         try {
 902
 903                 var ids = getSelectedArticleIds2();
 904
 905                 if (ids.length == 0) {
 906                         alert(__("No articles are selected."));
 907                         return;
 908                 }
 909
 910 //              var ok = confirm(__("Remove selected articles from label?"));
 911
 912 //              if (ok) {
 913
 914                         var query = "?op=rpc&subop=removeFromLabel&ids=" +
 915                                 param_escape(ids.toString()) + "&lid=" + param_escape(id);
 916
 917                         console.log(query);
 918
 919 //                      notify_progress("Loading, please wait...");
 920
 921                         cache_invalidate("F:" + (-11 - id));
 922
 923                         new Ajax.Request("backend.php", {
 924                                 parameters: query,
 925                                 onComplete: function(transport) {
 926                                         show_labels_in_headlines(transport);
 927                                         handle_rpc_reply(transport);
 928                                 } });
 929
 930 //              }
 931
 932         } catch (e) {
 933                 exception_error("selectionAssignLabel", e);
 934
 935         }
 936 }
 937
 938 function selectionAssignLabel(id) {
 939         try {
 940
 941                 var ids = getSelectedArticleIds2();
 942
 943                 if (ids.length == 0) {
 944                         alert(__("No articles are selected."));
 945                         return;
 946                 }
 947
 948 //              var ok = confirm(__("Assign selected articles to label?"));
 949
 950 //              if (ok) {
 951
 952                         cache_invalidate("F:" + (-11 - id));
 953
 954                         var query = "?op=rpc&subop=assignToLabel&ids=" +
 955                                 param_escape(ids.toString()) + "&lid=" + param_escape(id);
 956
 957                         console.log(query);
 958
 959 //                      notify_progress("Loading, please wait...");
 960
 961                         new Ajax.Request("backend.php", {
 962                                 parameters: query,
 963                                 onComplete: function(transport) {
 964                                         show_labels_in_headlines(transport);
 965                                         handle_rpc_reply(transport);
 966                                 } });
 967
 968 //              }
 969
 970         } catch (e) {
 971                 exception_error("selectionAssignLabel", e);
 972
 973         }
 974 }
 975
 976 function selectionToggleUnread(set_state, callback_func, no_error) {
 977         try {
 978                 var rows = getSelectedArticleIds2();
 979
 980                 if (rows.length == 0 && !no_error) {
 981                         alert(__("No articles are selected."));
 982                         return;
 983                 }
 984
 985                 for (i = 0; i < rows.length; i++) {
 986                         var row = $("RROW-" + rows[i]);
 987                         if (row) {
 988                                 var nc = row.className;
 989                                 nc = nc.replace("Unread", "");
 990                                 nc = nc.replace("Selected", "");
 991
 992                                 if (set_state == undefined) {
 993                                         if (row.className.match("Unread")) {
 994                                                 row.className = nc + "Selected";
 995                                         } else {
 996                                                 row.className = nc + "UnreadSelected";
 997                                         }
 998                                         if (db) {
 999                                                 db.execute("UPDATE articles SET unread = NOT unread WHERE id = ?",
1000                                                         [rows[i]]);
1001                                         }
1002                                 }
1003
1004                                 if (set_state == false) {
1005                                         row.className = nc + "Selected";
1006                                         if (db) {
1007                                                 db.execute("UPDATE articles SET unread = 0 WHERE id = ?",
1008                                                         [rows[i]]);
1009                                         }
1010                                 }
1011
1012                                 if (set_state == true) {
1013                                         row.className = nc + "UnreadSelected";
1014                                         if (db) {
1015                                                 db.execute("UPDATE articles SET unread = 1 WHERE id = ?",
1016                                                         [rows[i]]);
1017                                         }
1018                                 }
1019                         }
1020                 }
1021
1022                 if (rows.length > 0) {
1023
1024                         update_local_feedlist_counters();
1025
1026                         var cmode = "";
1027
1028                         if (set_state == undefined) {
1029                                 cmode = "2";
1030                         } else if (set_state == true) {
1031                                 cmode = "1";
1032                         } else if (set_state == false) {
1033                                 cmode = "0";
1034                         }
1035
1036                         var query = "?op=rpc&subop=catchupSelected" +
1037                                 "&cmode=" + cmode + "&ids=" + param_escape(rows.toString());
1038
1039                         notify_progress("Loading, please wait...");
1040
1041                         new Ajax.Request("backend.php", {
1042                                 parameters: query,
1043                                 onComplete: function(transport) {
1044                                         catchup_callback2(transport, callback_func);
1045                                 } });
1046
1047                 }
1048
1049         } catch (e) {
1050                 exception_error("selectionToggleUnread", e);
1051         }
1052 }
1053
1054 function selectionToggleMarked() {
1055         try {
1056
1057                 var rows = getSelectedArticleIds2();
1058
1059                 if (rows.length == 0) {
1060                         alert(__("No articles are selected."));
1061                         return;
1062                 }
1063
1064                 for (i = 0; i < rows.length; i++) {
1065                         toggleMark(rows[i], true, true);
1066                 }
1067
1068                 update_local_feedlist_counters();
1069
1070                 if (rows.length > 0) {
1071
1072                         var query = "?op=rpc&subop=markSelected&ids=" +
1073                                 param_escape(rows.toString()) + "&cmode=2";
1074
1075                         query = query + "&afid=" + getActiveFeedId();
1076
1077                         query = query + "&omode=lc";
1078
1079                         new Ajax.Request("backend.php", {
1080                                 parameters: query,
1081                                 onComplete: function(transport) {
1082                                         handle_rpc_reply(transport);
1083                                 } });
1084
1085                 }
1086
1087         } catch (e) {
1088                 exception_error("selectionToggleMarked", e);
1089         }
1090 }
1091
1092 function selectionTogglePublished() {
1093         try {
1094
1095                 var rows = getSelectedArticleIds2();
1096
1097                 if (rows.length == 0) {
1098                         alert(__("No articles are selected."));
1099                         return;
1100                 }
1101
1102                 for (i = 0; i < rows.length; i++) {
1103                         togglePub(rows[i], true, true);
1104                 }
1105
1106                 if (rows.length > 0) {
1107
1108                         var query = "?op=rpc&subop=publishSelected&ids=" +
1109                                 param_escape(rows.toString()) + "&cmode=2";
1110
1111                         query = query + "&afid=" + getActiveFeedId();
1112
1113                         query = query + "&omode=lc";
1114
1115                         new Ajax.Request("backend.php", {
1116                                 parameters: query,
1117                                 onComplete: function(transport) {
1118                                         handle_rpc_reply(transport);
1119                                 } });
1120
1121                 }
1122
1123         } catch (e) {
1124                 exception_error("selectionToggleMarked", e);
1125         }
1126 }
1127
1128 function cdmGetSelectedArticles() {
1129         var sel_articles = new Array();
1130         var container = $("headlinesInnerContainer");
1131
1132         for (i = 0; i < container.childNodes.length; i++) {
1133                 var child = container.childNodes[i];
1134
1135                 if (child.id && child.id.match("RROW-") && child.className.match("Selected")) {
1136                         var c_id = child.id.replace("RROW-", "");
1137                         sel_articles.push(c_id);
1138                 }
1139         }
1140
1141         return sel_articles;
1142 }
1143
1144 function cdmGetVisibleArticles() {
1145         var sel_articles = new Array();
1146         var container = $("headlinesInnerContainer");
1147
1148         if (!container) return sel_articles;
1149
1150         for (i = 0; i < container.childNodes.length; i++) {
1151                 var child = container.childNodes[i];
1152
1153                 if (child.id && child.id.match("RROW-")) {
1154                         var c_id = child.id.replace("RROW-", "");
1155                         sel_articles.push(c_id);
1156                 }
1157         }
1158
1159         return sel_articles;
1160 }
1161
1162 function cdmGetUnreadArticles() {
1163         var sel_articles = new Array();
1164         var container = $("headlinesInnerContainer");
1165
1166         for (i = 0; i < container.childNodes.length; i++) {
1167                 var child = container.childNodes[i];
1168
1169                 if (child.id && child.id.match("RROW-") && child.className.match("Unread")) {
1170                         var c_id = child.id.replace("RROW-", "");
1171                         sel_articles.push(c_id);
1172                 }
1173         }
1174
1175         return sel_articles;
1176 }
1177
1178
1179 // mode = all,none,unread
1180 function cdmSelectArticles(mode) {
1181         var container = $("headlinesInnerContainer");
1182
1183         for (i = 0; i < container.childNodes.length; i++) {
1184                 var child = container.childNodes[i];
1185
1186                 if (child.id && child.id.match("RROW-")) {
1187                         var aid = child.id.replace("RROW-", "");
1188
1189                         var cb = $("RCHK-" + aid);
1190
1191                         if (mode == "all") {
1192                                 if (!child.className.match("Selected")) {
1193                                         child.className = child.className + "Selected";
1194                                         cb.checked = true;
1195                                 }
1196                         } else if (mode == "unread") {
1197                                 if (child.className.match("Unread") && !child.className.match("Selected")) {
1198                                         child.className = child.className + "Selected";
1199                                         cb.checked = true;
1200                                 }
1201                         } else {
1202                                 child.className = child.className.replace("Selected", "");
1203                                 cb.checked = false;
1204                         }
1205                 }
1206         }
1207 }
1208
1209 function catchupPage() {
1210
1211         var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
1212
1213         var str = __("Mark all visible articles in %s as read?");
1214
1215         str = str.replace("%s", fn);
1216
1217         if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1218                 return;
1219         }
1220
1221         if ($("headlinesList")) {
1222                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, 'Unread', true);
1223                 selectionToggleUnread(false, 'viewCurrentFeed()', true);
1224                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
1225         } else {
1226                 cdmSelectArticles('all');
1227                 selectionToggleUnread(false, 'viewCurrentFeed()', true)
1228                 cdmSelectArticles('none');
1229         }
1230 }
1231
1232 function deleteSelection() {
1233
1234         try {
1235
1236                 var rows = getSelectedArticleIds2();
1237
1238                 if (rows.length == 0) {
1239                         alert(__("No articles are selected."));
1240                         return;
1241                 }
1242
1243                 var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
1244                 var str;
1245                 var op;
1246
1247                 if (getActiveFeedId() != 0) {
1248                         str = __("Delete %d selected articles in %s?");
1249                 } else {
1250                         str = __("Delete %d selected articles?");
1251                 }
1252
1253                 str = str.replace("%d", rows.length);
1254                 str = str.replace("%s", fn);
1255
1256                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1257                         return;
1258                 }
1259
1260                 query = "?op=rpc&subop=delete&ids=" + param_escape(rows);
1261
1262                 console.log(query);
1263
1264                 new Ajax.Request("backend.php", {
1265                         parameters: query,
1266                         onComplete: function(transport) {
1267                                         viewCurrentFeed();
1268                                 } });
1269
1270         } catch (e) {
1271                 exception_error("deleteSelection", e);
1272         }
1273 }
1274
1275 function archiveSelection() {
1276
1277         try {
1278
1279                 var rows = getSelectedArticleIds2();
1280
1281                 if (rows.length == 0) {
1282                         alert(__("No articles are selected."));
1283                         return;
1284                 }
1285
1286                 var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
1287                 var str;
1288                 var op;
1289
1290                 if (getActiveFeedId() != 0) {
1291                         str = __("Archive %d selected articles in %s?");
1292                         op = "archive";
1293                 } else {
1294                         str = __("Move %d archived articles back?");
1295                         op = "unarchive";
1296                 }
1297
1298                 str = str.replace("%d", rows.length);
1299                 str = str.replace("%s", fn);
1300
1301                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1302                         return;
1303                 }
1304
1305                 query = "?op=rpc&subop="+op+"&ids=" + param_escape(rows);
1306
1307                 console.log(query);
1308
1309                 for (var i = 0; i < rows.length; i++) {
1310                         cache_invalidate(rows[i]);
1311                 }
1312
1313                 new Ajax.Request("backend.php", {
1314                         parameters: query,
1315                         onComplete: function(transport) {
1316                                         viewCurrentFeed();
1317                                 } });
1318
1319         } catch (e) {
1320                 exception_error("archiveSelection", e);
1321         }
1322 }
1323
1324 function catchupSelection() {
1325
1326         try {
1327
1328                 var rows = getSelectedArticleIds2();
1329
1330                 if (rows.length == 0) {
1331                         alert(__("No articles are selected."));
1332                         return;
1333                 }
1334
1335                 var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
1336
1337                 var str = __("Mark %d selected articles in %s as read?");
1338
1339                 str = str.replace("%d", rows.length);
1340                 str = str.replace("%s", fn);
1341
1342                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1343                         return;
1344                 }
1345
1346                 if ($("headlinesList")) {
1347                         selectionToggleUnread(false, 'viewCurrentFeed()', true);
1348                 } else {
1349                         selectionToggleUnread(false, 'viewCurrentFeed()', true)
1350                 }
1351
1352         } catch (e) {
1353                 exception_error("catchupSelection", e);
1354         }
1355 }
1356
1357 function editArticleTags(id, feed_id, cdm_enabled) {
1358         displayDlg('editArticleTags', id,
1359                            function () {
1360                                         $("tags_str").focus();
1361
1362                                         new Ajax.Autocompleter('tags_str', 'tags_choices',
1363                                            "backend.php?op=rpc&subop=completeTags",
1364                                            { tokens: ',', paramName: "search" });
1365                            });
1366 }
1367
1368 function editTagsSave() {
1369
1370         notify_progress("Saving article tags...");
1371
1372         var form = document.forms["tag_edit_form"];
1373
1374         var query = Form.serialize("tag_edit_form");
1375
1376         query = "?op=rpc&subop=setArticleTags&" + query;
1377
1378         //console.log(query);
1379
1380         new Ajax.Request("backend.php", {
1381                 parameters: query,
1382                 onComplete: function(transport) {
1383                                 try {
1384                                         //console.log("tags saved...");
1385
1386                                         closeInfoBox();
1387                                         notify("");
1388
1389                                         if (tagsAreDisplayed()) {
1390                                                 _reload_feedlist_after_view = true;
1391                                         }
1392
1393                                         if (transport.responseXML) {
1394                                                 var tags_str = transport.responseXML.getElementsByTagName("tags-str")[0];
1395
1396                                                 if (tags_str) {
1397                                                         var id = tags_str.getAttribute("id");
1398
1399                                                         if (id) {
1400                                                                 var tags = $("ATSTR-" + id);
1401                                                                 if (tags) {
1402                                                                         tags.innerHTML = tags_str.firstChild.nodeValue;
1403                                                                 }
1404
1405                                                                 cache_invalidate(id);
1406                                                         }
1407                                                 }
1408                                         }
1409
1410                                 } catch (e) {
1411                                         exception_error("editTagsSave", e);
1412                                 }
1413                         } });
1414 }
1415
1416 function editTagsInsert() {
1417         try {
1418
1419                 var form = document.forms["tag_edit_form"];
1420
1421                 var found_tags = form.found_tags;
1422                 var tags_str = form.tags_str;
1423
1424                 var tag = found_tags[found_tags.selectedIndex].value;
1425
1426                 if (tags_str.value.length > 0 &&
1427                                 tags_str.value.lastIndexOf(", ") != tags_str.value.length - 2) {
1428
1429                         tags_str.value = tags_str.value + ", ";
1430                 }
1431
1432                 tags_str.value = tags_str.value + tag + ", ";
1433
1434                 found_tags.selectedIndex = 0;
1435
1436         } catch (e) {
1437                 exception_error("editTagsInsert", e);
1438         }
1439 }
1440
1441 function cdmScrollViewport(where) {
1442         console.log("cdmScrollViewport: " + where);
1443
1444         var ctr = $("headlinesInnerContainer");
1445
1446         if (!ctr) return;
1447
1448         if (where == "bottom") {
1449                 ctr.scrollTop = ctr.scrollHeight;
1450         } else {
1451                 ctr.scrollTop = where;
1452         }
1453 }
1454
1455 function cdmArticleIsBelowViewport(id) {
1456         try {
1457                 var ctr = $("headlinesInnerContainer");
1458                 var e = $("RROW-" + id);
1459
1460                 if (!e || !ctr) return;
1461
1462                 // article starts below viewport
1463
1464                 if (ctr.scrollTop < e.offsetTop) {
1465                         return true;
1466                 } else {
1467                         return false;
1468                 }
1469
1470         } catch (e) {
1471                 exception_error("cdmArticleIsVisible", e);
1472         }
1473 }
1474
1475 function cdmArticleIsAboveViewport(id) {
1476         try {
1477                 var ctr = $("headlinesInnerContainer");
1478                 var e = $("RROW-" + id);
1479
1480                 if (!e || !ctr) return;
1481
1482                 // article starts above viewport
1483
1484                 if (ctr.scrollTop > e.offsetTop + e.offsetHeight) {
1485                         return true;
1486                 } else {
1487                         return false;
1488                 }
1489
1490         } catch (e) {
1491                 exception_error("cdmArticleIsVisible", e);
1492         }
1493 }
1494
1495 function cdmScrollToArticleId(id) {
1496         try {
1497                 var ctr = $("headlinesInnerContainer");
1498                 var e = $("RROW-" + id);
1499
1500                 if (!e || !ctr) return;
1501
1502                 ctr.scrollTop = e.offsetTop;
1503
1504         } catch (e) {
1505                 exception_error("cdmScrollToArticleId", e);
1506         }
1507 }
1508
1509 function cdmArticleIsActuallyVisible(id) {
1510         try {
1511                 var ctr = $("headlinesInnerContainer");
1512                 var e = $("RROW-" + id);
1513
1514                 if (!e || !ctr) return;
1515
1516                 // article fits in viewport OR article is longer than viewport and
1517                 // its bottom is visible
1518
1519                 if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <=
1520                                 ctr.scrollTop + ctr.offsetHeight) {
1521
1522                         return true;
1523
1524                 } else if (e.offsetHeight > ctr.offsetHeight &&
1525                                 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1526                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
1527
1528                         return true;
1529
1530                 }
1531
1532                 return false;
1533
1534         } catch (e) {
1535                 exception_error("cdmArticleIsVisible", e);
1536         }
1537 }
1538
1539 function cdmWatchdog() {
1540
1541         try {
1542
1543                 var ctr = $("headlinesInnerContainer");
1544
1545                 if (!ctr) return;
1546
1547                 var ids = new Array();
1548
1549                 var e = ctr.firstChild;
1550
1551                 while (e) {
1552                         if (e.className && e.className == "cdmArticleUnread" && e.id &&
1553                                         e.id.match("RROW-")) {
1554
1555                                 // article fits in viewport OR article is longer than viewport and
1556                                 // its bottom is visible
1557
1558                                 if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <=
1559                                                 ctr.scrollTop + ctr.offsetHeight) {
1560
1561 //                                      console.log(e.id + " is visible " + e.offsetTop + "." +
1562 //                                              (e.offsetTop + e.offsetHeight) + " vs " + ctr.scrollTop + "." +
1563 //                                              (ctr.scrollTop + ctr.offsetHeight));
1564
1565                                         ids.push(e.id.replace("RROW-", ""));
1566
1567                                 } else if (e.offsetHeight > ctr.offsetHeight &&
1568                                                 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1569                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
1570
1571                                         ids.push(e.id.replace("RROW-", ""));
1572
1573                                 }
1574
1575                                 // method 2: article bottom is visible and is in upper 1/2 of the viewport
1576
1577 /*                              if (e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1578                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight/2) {
1579
1580                                         ids.push(e.id.replace("RROW-", ""));
1581
1582                                 } */
1583
1584                         }
1585
1586                         e = e.nextSibling;
1587                 }
1588
1589                 console.log("cdmWatchdog, ids= " + ids.toString());
1590
1591                 if (ids.length > 0) {
1592
1593                         for (var i = 0; i < ids.length; i++) {
1594                                 var e = $("RROW-" + ids[i]);
1595                                 if (e) {
1596                                         e.className = e.className.replace("Unread", "");
1597                                 }
1598                         }
1599
1600                         var query = "?op=rpc&subop=catchupSelected" +
1601                                 "&cmode=0" + "&ids=" + param_escape(ids.toString());
1602
1603                         new Ajax.Request("backend.php", {
1604                                 parameters: query,
1605                                 onComplete: function(transport) {
1606                                         handle_rpc_reply(transport);
1607                                 } });
1608
1609                 }
1610
1611                 _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 4000);
1612
1613         } catch (e) {
1614                 exception_error("cdmWatchdog", e);
1615         }
1616
1617 }
1618
1619
1620 function cache_inject(id, article, param) {
1621
1622         try {
1623                 if (!cache_check_param(id, param)) {
1624                         //console.log("cache_article: miss: " + id + " [p=" + param + "]");
1625
1626                    var date = new Date();
1627               var ts = Math.round(date.getTime() / 1000);
1628
1629                         if (db) {
1630
1631                                 db.execute("INSERT INTO cache (id, article, param, added) VALUES (?, ?, ?, ?)",
1632                                         [id, article, param, ts]);
1633                         } else {
1634
1635                                 var cache_obj = {};
1636
1637                                 cache_obj["id"] = id;
1638                                 cache_obj["data"] = article;
1639                                 cache_obj["param"] = param;
1640
1641                                 if (param) id = id + ":" + param;
1642
1643                                 cache_added["TS:" + id] = ts;
1644
1645                                 if (has_local_storage())
1646                                         localStorage.setItem(id, JSON.stringify(cache_obj));
1647                                 else
1648                                         article_cache.push(cache_obj);
1649                         }
1650
1651                 } else {
1652                         //console.log("cache_article: hit: " + id + " [p=" + param + "]");
1653                 }
1654         } catch (e) {
1655                 exception_error("cache_inject", e);
1656         }
1657 }
1658
1659 function cache_find(id) {
1660
1661         if (db) {
1662                 var rs = db.execute("SELECT article FROM cache WHERE id = ?", [id]);
1663                 var a = false;
1664
1665                 if (rs.isValidRow()) {
1666                         var a = rs.field(0);
1667                 }
1668
1669                 rs.close();
1670
1671                 return a;
1672
1673         } else {
1674
1675                 if (has_local_storage()) {
1676                         var cache_obj = localStorage.getItem(id);
1677
1678                         if (cache_obj) {
1679                                 cache_obj = JSON.parse(cache_obj);
1680
1681                                 if (cache_obj)
1682                                         return cache_obj['data'];
1683                         }
1684
1685                 } else {
1686                         for (var i = 0; i < article_cache.length; i++) {
1687                                 if (article_cache[i]["id"] == id) {
1688                                         return article_cache[i]["data"];
1689                                 }
1690                         }
1691                 }
1692         }
1693         return false;
1694 }
1695
1696 function cache_find_param(id, param) {
1697
1698         if (db) {
1699                 var rs = db.execute("SELECT article FROM cache WHERE id = ? AND param = ?",
1700                         [id, param]);
1701                 var a = false;
1702
1703                 if (rs.isValidRow()) {
1704                         a = rs.field(0);
1705                 }
1706
1707                 rs.close();
1708
1709                 return a;
1710
1711         } else {
1712
1713                 if (has_local_storage()) {
1714
1715                         if (param) id = id + ":" + param;
1716
1717                         var cache_obj = localStorage.getItem(id);
1718
1719                         if (cache_obj) {
1720                                 cache_obj = JSON.parse(cache_obj);
1721
1722                                 if (cache_obj)
1723                                         return cache_obj['data'];
1724                         }
1725
1726                 } else {
1727                         for (var i = 0; i < article_cache.length; i++) {
1728                                 if (article_cache[i]["id"] == id && article_cache[i]["param"] == param) {
1729                                         return article_cache[i]["data"];
1730                                 }
1731                         }
1732                 }
1733         }
1734         return false;
1735 }
1736
1737 function cache_check(id) {
1738
1739         if (db) {
1740                 var rs = db.execute("SELECT COUNT(*) AS c FROM cache WHERE id = ?",
1741                         [id]);
1742                 var a = false;
1743
1744                 if (rs.isValidRow()) {
1745                          a = rs.field(0) != "0";
1746                 }
1747
1748                 rs.close();
1749
1750                 return a;
1751
1752         } else {
1753                 if (has_local_storage()) {
1754                         if (localStorage.getItem(id))
1755                                 return true;
1756                 } else {
1757                         for (var i = 0; i < article_cache.length; i++) {
1758                                 if (article_cache[i]["id"] == id) {
1759                                         return true;
1760                                 }
1761                         }
1762                 }
1763         }
1764         return false;
1765 }
1766
1767 function cache_check_param(id, param) {
1768
1769         if (db) {
1770                 var rs = db.execute("SELECT COUNT(*) AS c FROM cache WHERE id = ? AND param = ?",
1771                         [id, param]);
1772                 var a = false;
1773
1774                 if (rs.isValidRow()) {
1775                         a = rs.field(0) != "0";
1776                 }
1777
1778                 rs.close();
1779
1780                 return a;
1781
1782         } else {
1783
1784                 if (has_local_storage()) {
1785
1786                         if (param) id = id + ":" + param;
1787
1788                         if (localStorage.getItem(id))
1789                                 return true;
1790
1791                 } else {
1792                         for (var i = 0; i < article_cache.length; i++) {
1793                                 if (article_cache[i]["id"] == id && article_cache[i]["param"] == param) {
1794                                         return true;
1795                                 }
1796                         }
1797                 }
1798         }
1799         return false;
1800 }
1801
1802 function cache_expire() {
1803         if (db) {
1804                 var date = new Date();
1805                 var ts = Math.round(date.getTime() / 1000);
1806
1807                 db.execute("DELETE FROM cache WHERE added < ? - 1800 AND id LIKE 'FEEDLIST'", [ts]);
1808                 db.execute("DELETE FROM cache WHERE added < ? - 600 AND (id LIKE 'F:%' OR id LIKE 'C:%')", [ts]);
1809                 db.execute("DELETE FROM cache WHERE added < ? - 86400", [ts]);
1810
1811
1812         } else {
1813                 if (has_local_storage()) {
1814
1815                         var date = new Date();
1816                         var timestamp = Math.round(date.getTime() / 1000);
1817
1818                         for (var i = 0; i < localStorage.length; i++) {
1819
1820                                 var id = localStorage.key(i);
1821
1822                                 if (timestamp - cache_added["TS:" + id] > 180) {
1823                                         localStorage.removeItem(id);
1824                                 }
1825                         }
1826
1827                 } else {
1828                         while (article_cache.length > 25) {
1829                                 article_cache.shift();
1830                         }
1831                 }
1832         }
1833 }
1834
1835 function cache_flush() {
1836         if (db) {
1837                 db.execute("DELETE FROM cache");
1838         } else if (has_local_storage()) {
1839                 localStorage.clear();
1840         } else {
1841                 article_cache = new Array();
1842         }
1843 }
1844
1845 function cache_invalidate(id) {
1846         try {
1847
1848                 if (db) {
1849                         rs = db.execute("DELETE FROM cache WHERE id = ?", [id]);
1850                         return rs.rowsAffected != 0;
1851                 } else {
1852
1853                         if (has_local_storage()) {
1854
1855                                 var found = false;
1856
1857                                 for (var i = 0; i < localStorage.length; i++) {
1858                                         var key = localStorage.key(i);
1859
1860 //                                      console.warn("cache_invalidate: " + key_id + " cmp " + id);
1861
1862                                         if (key == id || key.indexOf(id + ":") == 0) {
1863                                                 localStorage.removeItem(key);
1864                                                 found = true;
1865                                                 break;
1866                                         }
1867                                 }
1868
1869                                 return found;
1870
1871                         } else {
1872                                 var i = 0
1873
1874                                 while (i < article_cache.length) {
1875                                         if (article_cache[i]["id"] == id) {
1876                                                 //console.log("cache_invalidate: removed id " + id);
1877                                                 article_cache.splice(i, 1);
1878                                                 return true;
1879                                         }
1880                                         i++;
1881                                 }
1882                         }
1883                 }
1884
1885                 //console.log("cache_invalidate: id not found: " + id);
1886                 return false;
1887         } catch (e) {
1888                 exception_error("cache_invalidate", e);
1889         }
1890 }
1891
1892 function getActiveArticleId() {
1893         return active_post_id;
1894 }
1895
1896 function preloadBatchedArticles() {
1897         try {
1898
1899                 var query = "?op=rpc&subop=getArticles&ids=" +
1900                         preload_id_batch.toString();
1901
1902                 new Ajax.Request("backend.php", {
1903                         parameters: query,
1904                         onComplete: function(transport) {
1905
1906                                 preload_id_batch = [];
1907
1908                                 var articles = transport.responseXML.getElementsByTagName("article");
1909
1910                                 for (var i = 0; i < articles.length; i++) {
1911                                         var id = articles[i].getAttribute("id");
1912                                         if (!cache_check(id)) {
1913                                                 cache_inject(id, articles[i].firstChild.nodeValue);
1914                                                 console.log("preloaded article: " + id);
1915                                         }
1916                                 }
1917                 } });
1918
1919         } catch (e) {
1920                 exception_error("preloadBatchedArticles", e);
1921         }
1922 }
1923
1924 function preloadArticleUnderPointer(id) {
1925         try {
1926                 if (getInitParam("bw_limit") == "1") return;
1927
1928                 if (post_under_pointer == id && !cache_check(id)) {
1929
1930                         console.log("trying to preload article " + id);
1931
1932                         var neighbor_ids = getRelativePostIds(id, 1);
1933
1934                         /* only request uncached articles */
1935
1936                         if (preload_id_batch.indexOf(id) == -1) {
1937                                 for (var i = 0; i < neighbor_ids.length; i++) {
1938                                         if (!cache_check(neighbor_ids[i])) {
1939                                                 preload_id_batch.push(neighbor_ids[i]);
1940                                         }
1941                                 }
1942                         }
1943
1944                         if (preload_id_batch.indexOf(id) == -1)
1945                                 preload_id_batch.push(id);
1946
1947                         //console.log("preload ids batch: " + preload_id_batch.toString());
1948
1949                         window.clearTimeout(preload_timeout_id);
1950                         preload_batch_timeout_id = window.setTimeout('preloadBatchedArticles()', 1000);
1951
1952                 }
1953         } catch (e) {
1954                 exception_error("preloadArticleUnderPointer", e);
1955         }
1956 }
1957
1958 function postMouseIn(id) {
1959         try {
1960                 if (post_under_pointer != id) {
1961                         post_under_pointer = id;
1962                         if (!isCdmMode()) {
1963                                 window.setTimeout("preloadArticleUnderPointer(" + id + ")", 250);
1964                         }
1965                 }
1966
1967         } catch (e) {
1968                 exception_error("postMouseIn", e);
1969         }
1970 }
1971
1972 function postMouseOut(id) {
1973         try {
1974                 post_under_pointer = false;
1975         } catch (e) {
1976                 exception_error("postMouseOut", e);
1977         }
1978 }
1979
1980 function headlines_scroll_handler() {
1981         try {
1982
1983                 var e = $("headlinesInnerContainer");
1984
1985                 var toolbar_form = document.forms["main_toolbar_form"];
1986
1987 //              console.log((e.scrollTop + e.offsetHeight) + " vs " + e.scrollHeight + " dis? " +
1988 //                      _infscroll_disable);
1989
1990                 if (e.scrollTop + e.offsetHeight > e.scrollHeight - 100) {
1991                         if (!_infscroll_disable) {
1992                                 viewNextFeedPage();
1993                         }
1994                 }
1995
1996         } catch (e) {
1997                 exception_error("headlines_scroll_handler", e);
1998         }
1999 }
2000
2001 function catchupRelativeToArticle(below) {
2002
2003         try {
2004
2005
2006                 if (!getActiveArticleId()) {
2007                         alert(__("No article is selected."));
2008                         return;
2009                 }
2010
2011                 var visible_ids;
2012
2013                 if ($("headlinesList")) {
2014                         visible_ids = getVisibleHeadlineIds();
2015                 } else {
2016                         visible_ids = cdmGetVisibleArticles();
2017                 }
2018
2019                 var ids_to_mark = new Array();
2020
2021                 if (!below) {
2022                         for (var i = 0; i < visible_ids.length; i++) {
2023                                 if (visible_ids[i] != getActiveArticleId()) {
2024                                         var e = $("RROW-" + visible_ids[i]);
2025
2026                                         if (e && e.className.match("Unread")) {
2027                                                 ids_to_mark.push(visible_ids[i]);
2028                                         }
2029                                 } else {
2030                                         break;
2031                                 }
2032                         }
2033                 } else {
2034                         for (var i = visible_ids.length-1; i >= 0; i--) {
2035                                 if (visible_ids[i] != getActiveArticleId()) {
2036                                         var e = $("RROW-" + visible_ids[i]);
2037
2038                                         if (e && e.className.match("Unread")) {
2039                                                 ids_to_mark.push(visible_ids[i]);
2040                                         }
2041                                 } else {
2042                                         break;
2043                                 }
2044                         }
2045                 }
2046
2047                 if (ids_to_mark.length == 0) {
2048                         alert(__("No articles found to mark"));
2049                 } else {
2050                         var msg = __("Mark %d article(s) as read?").replace("%d", ids_to_mark.length);
2051
2052                         if (getInitParam("confirm_feed_catchup") != 1 || confirm(msg)) {
2053
2054                                 for (var i = 0; i < ids_to_mark.length; i++) {
2055                                         var e = $("RROW-" + ids_to_mark[i]);
2056                                         e.className = e.className.replace("Unread", "");
2057                                 }
2058
2059                                 var query = "?op=rpc&subop=catchupSelected" +
2060                                         "&cmode=0" + "&ids=" + param_escape(ids_to_mark.toString());
2061
2062                                 new Ajax.Request("backend.php", {
2063                                         parameters: query,
2064                                         onComplete: function(transport) {
2065                                                 catchup_callback2(transport);
2066                                         } });
2067
2068                         }
2069                 }
2070
2071         } catch (e) {
2072                 exception_error("catchupRelativeToArticle", e);
2073         }
2074 }
2075
2076 function cdmExpandArticle(id) {
2077         try {
2078
2079                 var elem = $("CICD-" + active_post_id);
2080
2081                 if (id == active_post_id && Element.visible(elem))
2082                         return true;
2083
2084                 cdmSelectArticles("none");
2085
2086                 var old_offset = $("RROW-" + id).offsetTop;
2087
2088                 if (active_post_id && elem) {
2089                         Element.hide(elem);
2090                         Element.show("CEXC-" + active_post_id);
2091                 }
2092
2093                 active_post_id = id;
2094
2095                 elem = $("CICD-" + id);
2096
2097                 if (!Element.visible(elem)) {
2098                         Element.show(elem);
2099                         Element.hide("CEXC-" + id);
2100                 }
2101
2102                 var new_offset = $("RROW-" + id).offsetTop;
2103
2104                 $("headlinesInnerContainer").scrollTop += (new_offset-old_offset);
2105
2106                 if ($("RROW-" + id).offsetTop != old_offset)
2107                         $("headlinesInnerContainer").scrollTop = new_offset;
2108
2109                 toggleUnread(id, 0, true);
2110                 toggleSelected(id);
2111
2112         } catch (e) {
2113                 exception_error("cdmExpandArticle", e);
2114         }
2115
2116         return false;
2117 }
2118
2119 function fixHeadlinesOrder(ids) {
2120         try {
2121                 for (var i = 0; i < ids.length; i++) {
2122                         var e = $("RROW-" + ids[i]);
2123
2124                         if (e) {
2125                                 if (i % 2 == 0) {
2126                                         e.className = e.className.replace("even", "odd");
2127                                 } else {
2128                                         e.className = e.className.replace("odd", "even");
2129                                 }
2130                         }
2131                 }
2132         } catch (e) {
2133                 exception_error("fixHeadlinesOrder", e);
2134         }
2135 }
2136
2137 function hideReadHeadlines() {
2138         try {
2139
2140                 var ids = false;
2141                 var vis_ids = new Array();
2142
2143                 if ($("headlinesList")) {
2144                         ids = getVisibleHeadlineIds();
2145                 } else {
2146                         ids = cdmGetVisibleArticles();
2147                 }
2148
2149                 var read_headlines_visible = true;
2150
2151                 for (var i = 0; i < ids.length; i++) {
2152                         var row = $("RROW-" + ids[i]);
2153
2154                         if (row && row.className) {
2155                                 if (read_headlines_visible) {
2156                                         if (row.className.match("Unread") || row.className.match("Selected")) {
2157                                                 Element.show(row);
2158                                                 vis_ids.push(ids[i]);
2159                                         } else {
2160                                                 //Effect.Fade(row, {duration : 0.3});
2161                                                 Element.hide(row);
2162                                         }
2163                                 } else {
2164                                         Element.show(row);
2165                                         vis_ids.push(ids[i]);
2166                                 }
2167                         }
2168                 }
2169
2170                 fixHeadlinesOrder(vis_ids);
2171
2172                 read_headlines_visible = !read_headlines_visible;
2173
2174         } catch (e) {
2175                 exception_error("hideReadHeadlines", e);
2176         }
2177 }
2178
2179 function invertHeadlineSelection() {
2180         try {
2181                 var rows = new Array();
2182                 var r = false;
2183
2184                 if (!isCdmMode()) {
2185                         r = document.getElementsByTagName("TR");
2186                 } else {
2187                         r = document.getElementsByTagName("DIV");
2188                 }
2189
2190                 for (var i = 0; i < r.length; i++) {
2191                         if (r[i].id && r[i].id.match("RROW-")) {
2192                                 rows.push(r[i]);
2193                         }
2194                 }
2195
2196                 for (var i = 0; i < rows.length; i++) {
2197                         var nc = rows[i].className;
2198                         var id = rows[i].id.replace("RROW-", "");
2199                         var cb = $("RCHK-" + id);
2200
2201                         if (!rows[i].className.match("Selected")) {
2202                                 nc = nc + "Selected";
2203                                 cb.checked = true;
2204                         } else {
2205                                 nc = nc.replace("Selected", "");
2206                                 cb.checked = false;
2207                         }
2208
2209                         rows[i].className = nc;
2210
2211                 }
2212
2213         } catch (e) {
2214                 exception_error("invertHeadlineSelection", e);
2215         }
2216 }
2217
2218 function getArticleUnderPointer() {
2219         return post_under_pointer;
2220 }
2221
2222 function zoomToArticle(id) {
2223         try {
2224                 var w = window.open("backend.php?op=view&mode=zoom&id=" + param_escape(id),
2225                         "ttrss_zoom_" + id,
2226                         "status=0,toolbar=0,location=0,width=450,height=300,scrollbars=1,menubar=0");
2227
2228         } catch (e) {
2229                 exception_error("zoomToArticle", e);
2230         }
2231 }
2232
2233 function scrollArticle(offset) {
2234         try {
2235                 if (!isCdmMode()) {
2236                         var ci = $("content-insert");
2237                         if (ci) {
2238                                 ci.scrollTop += offset;
2239                         }
2240                 } else {
2241                         var hi = $("headlinesInnerContainer");
2242                         if (hi) {
2243                                 hi.scrollTop += offset;
2244                         }
2245
2246                 }
2247         } catch (e) {
2248                 exception_error("scrollArticle", e);
2249         }
2250 }
2251
2252 function show_labels_in_headlines(transport) {
2253         try {
2254                 if (transport.responseXML) {
2255                         var info = transport.responseXML.getElementsByTagName("info-for-headlines")[0];
2256
2257                         var elems = info.getElementsByTagName("entry");
2258
2259                         for (var l = 0; l < elems.length; l++) {
2260                                 var e_id = elems[l].getAttribute("id");
2261
2262                                 if (e_id) {
2263
2264                                         var ctr = $("HLLCTR-" + e_id);
2265
2266                                         if (ctr) {
2267                                                 ctr.innerHTML = elems[l].firstChild.nodeValue;
2268                                         }
2269                                 }
2270
2271                         }
2272
2273                 }
2274         } catch (e) {
2275                 exception_error("show_labels_in_headlines", e);
2276
2277         }
2278 }
2279
2280 function toggleHeadlineActions() {
2281         try {
2282                 var e = $("headlineActionsBody");
2283                 var p = $("headlineActionsDrop");
2284
2285                 if (!Element.visible(e)) {
2286                         Element.show(e);
2287                 } else {
2288                         Element.hide(e);
2289                 }
2290
2291                 e.scrollTop = 0;
2292                 e.style.left = (p.offsetLeft + 1) + "px";
2293                 e.style.top = (p.offsetTop + p.offsetHeight + 2) + "px";
2294
2295         } catch (e) {
2296                 exception_error("toggleHeadlineActions", e);
2297         }
2298 }
2299
2300 function publishWithNote(id, def_note) {
2301         try {
2302                 if (!def_note) def_note = '';
2303
2304                 var note = prompt(__("Please enter a note for this article:"), def_note);
2305
2306                 if (note != undefined) {
2307                         togglePub(id, false, false, note);
2308                 }
2309
2310         } catch (e) {
2311                 exception_error("publishWithNote", e);
2312         }
2313 }
2314
2315 function emailArticle(id) {
2316         try {
2317                 if (!id) {
2318                         var ids = getSelectedArticleIds2();
2319
2320                         if (ids.length == 0) {
2321                                 alert(__("No articles are selected."));
2322                                 return;
2323                         }
2324
2325                         id = ids.toString();
2326                 }
2327
2328                 displayDlg('emailArticle', id,
2329                    function () {
2330                                 document.forms['article_email_form'].destination.focus();
2331
2332                            new Ajax.Autocompleter('destination', 'destination_choices',
2333                                    "backend.php?op=rpc&subop=completeEmails",
2334                                    { tokens: '', paramName: "search" });
2335
2336                         });
2337
2338         } catch (e) {
2339                 exception_error("emailArticle", e);
2340         }
2341 }
2342
2343 function emailArticleDo() {
2344         try {
2345                 var f = document.forms['article_email_form'];
2346
2347                 if (f.destination.value == "") {
2348                         alert("Please fill in the destination email.");
2349                         return;
2350                 }
2351
2352                 if (f.subject.value == "") {
2353                         alert("Please fill in the subject.");
2354                         return;
2355                 }
2356
2357                 var query = Form.serialize("article_email_form");
2358
2359 //              console.log(query);
2360
2361                 new Ajax.Request("backend.php", {
2362                         parameters: query,
2363                         onComplete: function(transport) {
2364                                 try {
2365
2366                                         var error = transport.responseXML.getElementsByTagName('error')[0];
2367
2368                                         if (error) {
2369                                                 alert(__('Error sending email:') + ' ' + error.firstChild.nodeValue);
2370                                         } else {
2371                                                 notify_info('Your message has been sent.');
2372                                                 closeInfoBox();
2373                                         }
2374
2375                                 } catch (e) {
2376                                         exception_error("sendEmailDo", e);
2377                                 }
2378
2379                         } });
2380
2381         } catch (e) {
2382                 exception_error("emailArticleDo", e);
2383         }
2384 }
2385
2386 function cdmDismissArticle(id) {
2387         try {
2388                 var elem = $("RROW-" + id);
2389
2390                 toggleUnread(id, 0, true);
2391
2392                 new Effect.Fade(elem, {duration : 0.5});
2393
2394         } catch (e) {
2395                 exception_error("cdmDismissArticle", e);
2396         }
2397 }
2398
2399 function cdmDismissSelectedArticles() {
2400         try {
2401
2402                 var ids = getSelectedArticleIds2();
2403
2404                 for (var i = 0; i < ids.length; i++) {
2405                         var elem = $("RROW-" + ids[i]);
2406                         new Effect.Fade(elem, {duration : 0.5});
2407                 }
2408
2409                 if (ids.length > 0)
2410                         selectionToggleUnread(false);
2411
2412         } catch (e) {
2413                 exception_error("cdmDismissArticle", e);
2414         }
2415 }