viewfeed.js

   1 var active_post_id = false;
   2 var last_article_view = false;
   3 var active_real_feed_id = false;
   4
   5 // FIXME: kludges, needs proper implementation
   6 var _reload_feedlist_after_view = false;
   7
   8 var _cdm_wd_timeout = false;
   9 var _cdm_wd_vishist = new Array();
  10
  11 var article_cache = new Array();
  12
  13 var vgroup_last_feed = false;
  14 var post_under_pointer = false;
  15
  16 var last_requested_article = false;
  17
  18 function catchup_callback2(transport, callback) {
  19         try {
  20                 debug("catchup_callback2 " + transport + ", " + callback);
  21                 notify("");
  22                 all_counters_callback2(transport);
  23                 if (callback) {
  24                         setTimeout(callback, 10);
  25                 }
  26         } catch (e) {
  27                 exception_error("catchup_callback2", e, transport);
  28         }
  29 }
  30
  31 function clean_feed_selections() {
  32         try {
  33                 var feeds = document.getElementById("feedList").getElementsByTagName("LI");
  34
  35                 for (var i = 0; i < feeds.length; i++) {
  36                         if (feeds[i].id && feeds[i].id.match("FEEDR-")) {
  37                                 feeds[i].className = feeds[i].className.replace("Selected", "");
  38                         }
  39                         if (feeds[i].id && feeds[i].id.match("FCAT-")) {
  40                                 feeds[i].className = feeds[i].className.replace("Selected", "");
  41                         }
  42                 }
  43         } catch (e) {
  44                 exception_error("clean_feed_selections", e);
  45         }
  46 }
  47
  48 function headlines_callback2(transport, feed_cur_page) {
  49         try {
  50
  51                 loading_set_progress(100);
  52
  53                 debug("headlines_callback2 [page=" + feed_cur_page + "]");
  54
  55                 if (!transport_error_check(transport)) return;
  56
  57                 clean_feed_selections();
  58
  59                 var is_cat = false;
  60                 var feed_id = false;
  61
  62                 if (transport.responseXML) {
  63                         var headlines = transport.responseXML.getElementsByTagName("headlines")[0];
  64                         if (headlines) {
  65                                 is_cat = headlines.getAttribute("is_cat");
  66                                 feed_id = headlines.getAttribute("id");
  67                                 setActiveFeedId(feed_id, is_cat);
  68                         }
  69                 }
  70
  71                 if (!is_cat) {
  72                         var feedr = document.getElementById("FEEDR-" + feed_id);
  73                         if (feedr && !feedr.className.match("Selected")) {
  74                                 feedr.className = feedr.className + "Selected";
  75                         }
  76                 } else {
  77                         var feedr = document.getElementById("FCAT-" + feed_id);
  78                         if (feedr && !feedr.className.match("Selected")) {
  79                                 feedr.className = feedr.className + "Selected";
  80                         }
  81                 }
  82
  83                 var f = document.getElementById("headlines-frame");
  84                 try {
  85                         if (feed_cur_page == 0) {
  86                                 debug("resetting headlines scrollTop");
  87                                 f.scrollTop = 0;
  88                         }
  89                 } catch (e) { };
  90
  91                 if (transport.responseXML) {
  92                         var headlines = transport.responseXML.getElementsByTagName("headlines")[0];
  93                         var headlines_count_obj = transport.responseXML.getElementsByTagName("headlines-count")[0];
  94                         var headlines_unread_obj = transport.responseXML.getElementsByTagName("headlines-unread")[0];
  95                         var disable_cache_obj = transport.responseXML.getElementsByTagName("disable-cache")[0];
  96
  97                         var vgroup_last_feed_obj =  transport.responseXML.getElementsByTagName("vgroup-last-feed")[0];
  98
  99                         var headlines_count = headlines_count_obj.getAttribute("value");
 100                         var headlines_unread = headlines_unread_obj.getAttribute("value");
 101                         var disable_cache = disable_cache_obj.getAttribute("value") != "0";
 102
 103                         vgroup_last_feed = vgroup_last_feed_obj.getAttribute("value");
 104
 105                         if (headlines_count == 0) {
 106                                 _infscroll_disable = 1;
 107                         } else {
 108                                 _infscroll_disable = 0;
 109                         }
 110
 111                         var counters = transport.responseXML.getElementsByTagName("counters")[0];
 112                         var articles = transport.responseXML.getElementsByTagName("article");
 113                         var runtime_info = transport.responseXML.getElementsByTagName("runtime-info");
 114
 115                         if (feed_cur_page == 0) {
 116                                 if (headlines) {
 117                                         f.innerHTML = headlines.firstChild.nodeValue;
 118
 119                                         var cache_prefix = "";
 120
 121                                         if (is_cat) {
 122                                                 cache_prefix = "C:";
 123                                         } else {
 124                                                 cache_prefix = "F:";
 125                                         }
 126
 127                                         cache_invalidate(cache_prefix + feed_id);
 128
 129                                         if (!disable_cache) {
 130                                                 cache_inject(cache_prefix + feed_id,
 131                                                         headlines.firstChild.nodeValue, headlines_unread);
 132                                         }
 133
 134                                 } else {
 135                                         debug("headlines_callback: returned no data");
 136                                 f.innerHTML = "<div class='whiteBox'>" + __('Could not update headlines (missing XML data)') + "</div>";
 137
 138                                 }
 139                         } else {
 140                                 if (headlines) {
 141                                         if (headlines_count > 0) {
 142                                                 debug("adding some more headlines...");
 143
 144                                                 var c = document.getElementById("headlinesList");
 145
 146                                                 if (!c) {
 147                                                         c = document.getElementById("headlinesInnerContainer");
 148                                                 }
 149
 150                                                 var ids = getSelectedArticleIds2();
 151
 152                                                 c.innerHTML = c.innerHTML + headlines.firstChild.nodeValue;
 153
 154                                                 debug("restore selected ids: " + ids);
 155
 156                                                 for (var i = 0; i < ids.length; i++) {
 157                                                         markHeadline(ids[i]);
 158                                                 }
 159
 160                                         } else {
 161                                                 debug("no new headlines received");
 162                                         }
 163                                 } else {
 164                                         debug("headlines_callback: returned no data");
 165                                         notify_error("Error while trying to load more headlines");
 166                                 }
 167
 168                         }
 169
 170                         if (articles) {
 171                                 for (var i = 0; i < articles.length; i++) {
 172                                         var a_id = articles[i].getAttribute("id");
 173                                         debug("found id: " + a_id);
 174                                         cache_inject(a_id, articles[i].firstChild.nodeValue);
 175                                 }
 176                         } else {
 177                                 debug("no cached articles received");
 178                         }
 179
 180                         if (counters) {
 181                                 debug("parsing piggybacked counters: " + counters);
 182                                 parse_counters(counters, false);
 183                         } else {
 184                                 debug("counters container not found in reply, requesting...");
 185                                 request_counters();
 186                         }
 187
 188                         if (runtime_info) {
 189                                 debug("parsing runtime info: " + runtime_info[0]);
 190                                 parse_runtime_info(runtime_info[0]);
 191                         } else {
 192                                 debug("counters container not found in reply");
 193                         }
 194
 195                 } else {
 196                         debug("headlines_callback: returned no XML object");
 197                         f.innerHTML = "<div class='whiteBox'>" + __('Could not update headlines (missing XML object)') + "</div>";
 198                 }
 199
 200                 if (typeof correctPNG != 'undefined') {
 201                         correctPNG();
 202                 }
 203
 204                 if (_cdm_wd_timeout) window.clearTimeout(_cdm_wd_timeout);
 205
 206                 if (!document.getElementById("headlinesList") &&
 207                                 getActiveFeedId() != -3 &&
 208                                 getInitParam("cdm_auto_catchup") == 1) {
 209                         debug("starting CDM watchdog");
 210                         _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 5000);
 211                         _cdm_wd_vishist = new Array();
 212                 } else {
 213                         debug("not in CDM mode or watchdog disabled");
 214                 }
 215
 216                 _feed_cur_page = feed_cur_page;
 217                 _infscroll_request_sent = 0;
 218
 219                 notify("");
 220
 221                 remove_splash();
 222
 223         } catch (e) {
 224                 exception_error("headlines_callback2", e, transport);
 225         }
 226 }
 227
 228 function render_article(article) {
 229         try {
 230                 var f = document.getElementById("content-frame");
 231                 try {
 232                         f.scrollTop = 0;
 233                 } catch (e) { };
 234
 235                 var fi = document.getElementById("content-insert");
 236
 237                 try {
 238                         fi.scrollTop = 0;
 239                 } catch (e) { };
 240
 241                 fi.innerHTML = article;
 242
 243         } catch (e) {
 244                 exception_error("render_article", e);
 245         }
 246 }
 247
 248 function showArticleInHeadlines(id) {
 249
 250         try {
 251
 252                 cleanSelected("headlinesList");
 253
 254                 var crow = document.getElementById("RROW-" + id);
 255
 256                 if (!crow) return;
 257
 258                 var article_is_unread = crow.className.match("Unread");
 259
 260                 crow.className = crow.className.replace("Unread", "");
 261
 262                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
 263
 264                 var upd_img_pic = document.getElementById("FUPDPIC-" + id);
 265
 266                 var cache_prefix = "";
 267
 268                 if (activeFeedIsCat()) {
 269                         cache_prefix = "C:";
 270                 } else {
 271                         cache_prefix = "F:";
 272                 }
 273
 274                 var view_mode = false;
 275
 276                 try {
 277                         view_mode = document.forms['main_toolbar_form'].view_mode;
 278                         view_mode = view_mode[view_mode.selectedIndex].value;
 279                 } catch (e) {
 280                         //
 281                 }
 282
 283                 if (upd_img_pic && upd_img_pic.src.match("updated.png")) {
 284                         upd_img_pic.src = "images/blank_icon.gif";
 285
 286                         cache_invalidate(cache_prefix + getActiveFeedId());
 287
 288                         cache_inject(cache_prefix + getActiveFeedId(),
 289                                 document.getElementById("headlines-frame").innerHTML,
 290                                 get_feed_unread(getActiveFeedId()));
 291
 292                 } else if (article_is_unread && view_mode == "all_articles") {
 293
 294                         cache_invalidate(cache_prefix + getActiveFeedId());
 295
 296                         cache_inject(cache_prefix + getActiveFeedId(),
 297                                 document.getElementById("headlines-frame").innerHTML,
 298                                 get_feed_unread(getActiveFeedId())-1);
 299
 300                 } else if (article_is_unread) {
 301                         cache_invalidate(cache_prefix + getActiveFeedId());
 302                 }
 303
 304                 markHeadline(id);
 305
 306         } catch (e) {
 307                 exception_error("showArticleInHeadlines", e);
 308         }
 309 }
 310
 311 function article_callback2(transport, id, feed_id) {
 312         try {
 313                 debug("article_callback2 " + id);
 314
 315                 if (transport.responseXML) {
 316
 317                         if (!transport_error_check(transport)) return;
 318
 319                         debug("looking for articles to cache...");
 320
 321                         var articles = transport.responseXML.getElementsByTagName("article");
 322
 323                         for (var i = 0; i < articles.length; i++) {
 324                                 var a_id = articles[i].getAttribute("id");
 325
 326                                 debug("found id: " + a_id);
 327
 328                                 if (a_id == active_post_id) {
 329                                         debug("active article, rendering...");
 330                                         render_article(articles[i].firstChild.nodeValue);
 331                                 }
 332
 333                                 cache_inject(a_id, articles[i].firstChild.nodeValue);
 334                         }
 335
 336                         if (id != last_requested_article) {
 337                                 debug("requested article id is out of sequence, aborting");
 338                                 return;
 339                         }
 340
 341                         active_real_feed_id = feed_id;
 342                         active_post_id = id;
 343
 344                         showArticleInHeadlines(id);
 345
 346                         if (db) {
 347                                 db.execute("UPDATE articles SET unread = 0 WHERE id = ?", [id]);
 348                         }
 349
 350                         var reply = transport.responseXML.firstChild.firstChild;
 351
 352                 } else {
 353                         debug("article_callback: returned no XML object");
 354                         //var f = document.getElementById("content-frame");
 355                         //f.innerHTML = "<div class='whiteBox'>" + __('Could not display article (missing XML object)') + "</div>";
 356                 }
 357
 358                 var date = new Date();
 359                 last_article_view = date.getTime() / 1000;
 360
 361                 if (typeof correctPNG != 'undefined') {
 362                         correctPNG();
 363                 }
 364
 365                 if (_reload_feedlist_after_view) {
 366                         setTimeout('updateFeedList(false, false)', 50);
 367                         _reload_feedlist_after_view = false;
 368                 } else {
 369                         if (transport.responseXML) {
 370                                 var counters = transport.responseXML.getElementsByTagName("counters")[0];
 371
 372                                 if (counters) {
 373                                         debug("parsing piggybacked counters: " + counters);
 374                                         parse_counters(counters, false);
 375                                 } else {
 376                                         debug("counters container not found in reply, requesting...");
 377                                         request_counters();
 378                                 }
 379                         }
 380                 }
 381
 382                 notify("");
 383         } catch (e) {
 384                 exception_error("article_callback2", e, transport);
 385         }
 386 }
 387
 388 function view_offline(id, feed_id) {
 389         try {
 390
 391                 enableHotkeys();
 392                 showArticleInHeadlines(id);
 393
 394                 if (db) {
 395                         db.execute("UPDATE articles SET unread = 0 WHERE id = ?", [id]);
 396                 }
 397
 398                 render_article("FIXME");
 399                 update_local_feedlist_counters();
 400
 401                 return false;
 402
 403         } catch (e) {
 404                 exception_error("view_offline", e);
 405         }
 406 }
 407
 408 function view(id, feed_id, skip_history) {
 409
 410         try {
 411                 debug("loading article: " + id + "/" + feed_id);
 412
 413                 if (offline_mode) return view_offline(id, feed_id);
 414
 415                 var cached_article = cache_find(id);
 416
 417                 debug("cache check result: " + (cached_article != false));
 418
 419                 enableHotkeys();
 420
 421                 //setActiveFeedId(feed_id);
 422
 423                 var query = "backend.php?op=view&id=" + param_escape(id) +
 424                         "&feed=" + param_escape(feed_id);
 425
 426                 var date = new Date();
 427
 428                 var neighbor_ids = getRelativePostIds(active_post_id);
 429
 430                 /* only request uncached articles */
 431
 432                 var cids_to_request = Array();
 433
 434                 for (var i = 0; i < neighbor_ids.length; i++) {
 435                         if (!cache_check(neighbor_ids[i])) {
 436                                 cids_to_request.push(neighbor_ids[i]);
 437                         }
 438                 }
 439
 440                 debug("additional ids: " + cids_to_request.toString());
 441
 442                 /* additional info for piggyback counters */
 443
 444                 if (tagsAreDisplayed()) {
 445                         query = query + "&omode=lt";
 446                 } else {
 447                         query = query + "&omode=flc";
 448                 }
 449
 450                 var date = new Date();
 451                 var timestamp = Math.round(date.getTime() / 1000);
 452                 query = query + "&ts=" + timestamp;
 453
 454                 query = query + "&cids=" + cids_to_request.toString();
 455
 456                 var crow = document.getElementById("RROW-" + id);
 457                 var article_is_unread = crow.className.match("Unread");
 458
 459                 if (!async_counters_work) {
 460                         query = query + "&csync=true";
 461                 }
 462
 463                 showArticleInHeadlines(id);
 464
 465                 if (!cached_article) {
 466
 467                         notify_progress("Loading, please wait...", true);
 468
 469                 } else if (cached_article && article_is_unread) {
 470
 471                         query = query + "&mode=prefetch";
 472
 473                         render_article(cached_article);
 474
 475                 } else if (cached_article) {
 476
 477                         query = query + "&mode=prefetch_old";
 478                         render_article(cached_article);
 479
 480                 }
 481
 482                 cache_expire();
 483
 484                 last_requested_article = id;
 485
 486                 new Ajax.Request(query, {
 487                         onComplete: function(transport) {
 488                                 article_callback2(transport, id, feed_id);
 489                         } });
 490
 491                 return false;
 492
 493         } catch (e) {
 494                 exception_error("view", e);
 495         }
 496 }
 497
 498 function tMark(id) {
 499         return toggleMark(id);
 500 }
 501
 502 function tPub(id) {
 503         return togglePub(id);
 504 }
 505
 506 function tMark_afh_off(effect) {
 507         try {
 508                 var elem = effect.effects[0].element;
 509
 510                 debug("tMark_afh_off : " + elem.id);
 511
 512                 if (elem) {
 513                         elem.src = elem.src.replace("mark_set", "mark_unset");
 514                         elem.alt = __("Star article");
 515                         Element.show(elem);
 516                 }
 517
 518         } catch (e) {
 519                 exception_error("tMark_afh_off", e);
 520         }
 521 }
 522
 523 function tPub_afh_off(effect) {
 524         try {
 525                 var elem = effect.effects[0].element;
 526
 527                 debug("tPub_afh_off : " + elem.id);
 528
 529                 if (elem) {
 530                         elem.src = elem.src.replace("pub_set", "pub_unset");
 531                         elem.alt = __("Publish article");
 532                         Element.show(elem);
 533                 }
 534
 535         } catch (e) {
 536                 exception_error("tPub_afh_off", e);
 537         }
 538 }
 539
 540 function toggleMark(id, client_only, no_effects) {
 541
 542         try {
 543
 544                 var query = "backend.php?op=rpc&id=" + id + "&subop=mark";
 545
 546                 query = query + "&afid=" + getActiveFeedId();
 547
 548                 if (tagsAreDisplayed()) {
 549                         query = query + "&omode=tl";
 550                 } else {
 551                         query = query + "&omode=flc";
 552                 }
 553
 554                 var mark_img = document.getElementById("FMPIC-" + id);
 555
 556                 if (!mark_img) return;
 557
 558                 var vfeedu = document.getElementById("FEEDU--1");
 559                 var crow = document.getElementById("RROW-" + id);
 560
 561                 if (mark_img.src.match("mark_unset")) {
 562                         mark_img.src = mark_img.src.replace("mark_unset", "mark_set");
 563                         mark_img.alt = __("Unstar article");
 564                         query = query + "&mark=1";
 565
 566                         if (db) {
 567                                 db.execute("UPDATE articles SET marked = 1 WHERE id = ?", [id]);
 568                         }
 569
 570                 } else {
 571                         //mark_img.src = "images/mark_unset.png";
 572                         mark_img.alt = __("Please wait...");
 573                         query = query + "&mark=0";
 574
 575                         if (document.getElementById("headlinesList") && !no_effects) {
 576                                 Effect.Puff(mark_img, {duration : 0.25, afterFinish: tMark_afh_off});
 577                         } else {
 578                                 mark_img.src = mark_img.src.replace("mark_set", "mark_unset");
 579                                 mark_img.alt = __("Star article");
 580                         }
 581
 582                         if (db) {
 583                                 db.execute("UPDATE articles SET marked = 0 WHERE id = ?", [id]);
 584                         }
 585
 586                 }
 587
 588                 update_local_feedlist_counters();
 589
 590                 if (!client_only) {
 591                         debug(query);
 592
 593                         new Ajax.Request(query, {
 594                                 onComplete: function(transport) {
 595                                         all_counters_callback2(transport);
 596                                 } });
 597
 598                 }
 599
 600         } catch (e) {
 601                 exception_error("toggleMark", e);
 602         }
 603 }
 604
 605 function togglePub(id, client_only, no_effects) {
 606
 607         try {
 608
 609                 var query = "backend.php?op=rpc&id=" + id + "&subop=publ";
 610
 611                 query = query + "&afid=" + getActiveFeedId();
 612
 613                 if (tagsAreDisplayed()) {
 614                         query = query + "&omode=tl";
 615                 } else {
 616                         query = query + "&omode=flc";
 617                 }
 618
 619                 var mark_img = document.getElementById("FPPIC-" + id);
 620
 621                 if (!mark_img) return;
 622
 623                 var vfeedu = document.getElementById("FEEDU--2");
 624                 var crow = document.getElementById("RROW-" + id);
 625
 626                 if (mark_img.src.match("pub_unset")) {
 627                         mark_img.src = mark_img.src.replace("pub_unset", "pub_set");
 628                         mark_img.alt = __("Unpublish article");
 629                         query = query + "&pub=1";
 630
 631
 632                 } else {
 633                         //mark_img.src = "images/pub_unset.png";
 634                         mark_img.alt = __("Please wait...");
 635                         query = query + "&pub=0";
 636
 637                         if (document.getElementById("headlinesList") && !no_effects) {
 638                                 Effect.Puff(mark_img, {duration : 0.25, afterFinish: tPub_afh_off});
 639                         } else {
 640                                 mark_img.src = mark_img.src.replace("pub_set", "pub_unset");
 641                                 mark_img.alt = __("Publish article");
 642                         }
 643                 }
 644
 645                 if (!client_only) {
 646                         new Ajax.Request(query, {
 647                                 onComplete: function(transport) {
 648                                         all_counters_callback2(transport);
 649                                 } });
 650                 }
 651
 652         } catch (e) {
 653
 654                 exception_error("togglePub", e);
 655         }
 656 }
 657
 658 function correctHeadlinesOffset(id) {
 659
 660         try {
 661
 662                 var hlist = document.getElementById("headlinesList");
 663                 var container = document.getElementById("headlinesInnerContainer");
 664                 var row = document.getElementById("RROW-" + id);
 665
 666                 var viewport = container.offsetHeight;
 667
 668                 var rel_offset_top = row.offsetTop - container.scrollTop;
 669                 var rel_offset_bottom = row.offsetTop + row.offsetHeight - container.scrollTop;
 670
 671                 debug("Rtop: " + rel_offset_top + " Rbtm: " + rel_offset_bottom);
 672                 debug("Vport: " + viewport);
 673
 674                 if (rel_offset_top <= 0 || rel_offset_top > viewport) {
 675                         container.scrollTop = row.offsetTop;
 676                 } else if (rel_offset_bottom > viewport) {
 677
 678                         /* doesn't properly work with Opera in some cases because
 679                                 Opera fucks up element scrolling */
 680
 681                         container.scrollTop = row.offsetTop + row.offsetHeight - viewport;
 682                 }
 683
 684         } catch (e) {
 685                 exception_error("correctHeadlinesOffset", e);
 686         }
 687
 688 }
 689
 690 function moveToPost(mode) {
 691
 692         try {
 693
 694                 var rows;
 695
 696                 if (isCdmMode()) {
 697                         rows = cdmGetVisibleArticles();
 698                 } else {
 699                         rows = getVisibleHeadlineIds();
 700                 }
 701
 702                 var prev_id = false;
 703                 var next_id = false;
 704
 705                 if (!document.getElementById('RROW-' + active_post_id)) {
 706                         active_post_id = false;
 707                 }
 708
 709                 if (active_post_id == false) {
 710                         next_id = getFirstVisibleHeadlineId();
 711                         prev_id = getLastVisibleHeadlineId();
 712                 } else {
 713                         for (var i = 0; i < rows.length; i++) {
 714                                 if (rows[i] == active_post_id) {
 715                                         prev_id = rows[i-1];
 716                                         next_id = rows[i+1];
 717                                 }
 718                         }
 719                 }
 720
 721                 if (mode == "next") {
 722                         if (next_id) {
 723                                 if (isCdmMode()) {
 724
 725                                         if (!cdmArticleIsActuallyVisible(next_id)) {
 726                                                 cdmScrollToArticleId(next_id);
 727                                         }
 728                                         cdmSelectArticles("none");
 729                                         toggleUnread(next_id, 0, true);
 730                                         toggleSelected(next_id);
 731
 732                                 } else {
 733                                         correctHeadlinesOffset(next_id);
 734                                         view(next_id, getActiveFeedId());
 735                                 }
 736                         }
 737                 }
 738
 739                 if (mode == "prev") {
 740                         if (prev_id) {
 741                                 if (isCdmMode()) {
 742                                         cdmScrollToArticleId(prev_id);
 743                                         cdmSelectArticles("none");
 744                                         toggleUnread(prev_id, 0, true);
 745                                         toggleSelected(prev_id);
 746                                 } else {
 747                                         correctHeadlinesOffset(prev_id);
 748                                         view(prev_id, getActiveFeedId());
 749                                 }
 750                         }
 751                 }
 752
 753         } catch (e) {
 754                 exception_error("moveToPost", e);
 755         }
 756 }
 757
 758 function toggleSelected(id) {
 759         try {
 760
 761                 var cb = document.getElementById("RCHK-" + id);
 762
 763                 var row = document.getElementById("RROW-" + id);
 764                 if (row) {
 765                         var nc = row.className;
 766
 767                         if (!nc.match("Selected")) {
 768                                 nc = nc + "Selected";
 769                                 if (cb) {
 770                                         cb.checked = true;
 771                                 }
 772
 773                                 // In CDM basically last selected article == active article
 774                                 if (isCdmMode()) active_post_id = id;
 775                         } else {
 776                                 nc = nc.replace("Selected", "");
 777                                 if (cb) {
 778                                         cb.checked = false;
 779                                 }
 780
 781                         }
 782
 783                         row.className = nc;
 784                 }
 785         } catch (e) {
 786                 exception_error("toggleSelected", e);
 787         }
 788 }
 789
 790 function toggleUnread_afh(effect) {
 791         try {
 792
 793                 var elem = effect.element;
 794                 elem.style.backgroundColor = "";
 795
 796         } catch (e) {
 797                 exception_error("toggleUnread_afh", e);
 798         }
 799 }
 800
 801 function toggleUnread(id, cmode, effect) {
 802         try {
 803
 804                 var row = document.getElementById("RROW-" + id);
 805                 if (row) {
 806                         var nc = row.className;
 807                         var is_selected = row.className.match("Selected");
 808                         nc = nc.replace("Unread", "");
 809                         nc = nc.replace("Selected", "");
 810
 811                         // since we are removing selection from the object, uncheck
 812                         // corresponding checkbox
 813
 814                         var cb = document.getElementById("RCHK-" + id);
 815                         if (cb) {
 816                                 cb.checked = false;
 817                         }
 818
 819                         // NOTE: I'm not sure that resetting selection here is a feature -fox
 820
 821                         if (cmode == undefined || cmode == 2) {
 822                                 if (row.className.match("Unread")) {
 823                                         row.className = nc;
 824
 825                                         if (effect) {
 826                                                 new Effect.Highlight(row, {duration: 1, startcolor: "#fff7d5",
 827                                                         afterFinish: toggleUnread_afh,
 828                                                         queue: { position:'end', scope: 'TMRQ-' + id, limit: 1 } } );
 829                                         }
 830
 831                                 } else {
 832                                         row.className = nc + "Unread";
 833                                 }
 834                         } else if (cmode == 0) {
 835                                 row.className = nc;
 836
 837                                 if (effect) {
 838                                         new Effect.Highlight(row, {duration: 1, startcolor: "#fff7d5",
 839                                                 afterFinish: toggleUnread_afh,
 840                                                 queue: { position:'end', scope: 'TMRQ-' + id, limit: 1 } } );
 841                                 }
 842                         } else if (cmode == 1) {
 843                                 row.className = nc + "Unread";
 844                         }
 845
 846                         // Disable unmarking as selected for the time being (16.05.08) -fox
 847                         if (is_selected) row.className = row.className + "Selected";
 848
 849                         if (cmode == undefined) cmode = 2;
 850
 851                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
 852                                 param_escape(id) + "&cmode=" + param_escape(cmode);
 853
 854 //                      notify_progress("Loading, please wait...");
 855
 856                         new Ajax.Request(query, {
 857                                 onComplete: function(transport) {
 858                                         all_counters_callback2(transport);
 859                                 } });
 860
 861                 }
 862
 863
 864         } catch (e) {
 865                 exception_error("toggleUnread", e);
 866         }
 867 }
 868
 869 function selectionRemoveLabel(id) {
 870         try {
 871
 872                 var ids = getSelectedArticleIds2();
 873
 874                 if (ids.length == 0) {
 875                         alert(__("No articles are selected."));
 876                         return;
 877                 }
 878
 879 //              var ok = confirm(__("Remove selected articles from label?"));
 880
 881 //              if (ok) {
 882
 883                         var query = "backend.php?op=rpc&subop=removeFromLabel&ids=" +
 884                                 param_escape(ids.toString()) + "&lid=" + param_escape(id);
 885
 886 //                      notify_progress("Loading, please wait...");
 887
 888                         cache_invalidate("F:" + (-11 - id));
 889
 890                         new Ajax.Request(query, {
 891                                 onComplete: function(transport) {
 892                                         show_labels_in_headlines(transport);
 893                                         all_counters_callback2(transport);
 894                                 } });
 895
 896 //              }
 897
 898         } catch (e) {
 899                 exception_error("selectionAssignLabel", e);
 900
 901         }
 902 }
 903
 904 function selectionAssignLabel(id) {
 905         try {
 906
 907                 var ids = getSelectedArticleIds2();
 908
 909                 if (ids.length == 0) {
 910                         alert(__("No articles are selected."));
 911                         return;
 912                 }
 913
 914 //              var ok = confirm(__("Assign selected articles to label?"));
 915
 916 //              if (ok) {
 917
 918                         cache_invalidate("F:" + (-11 - id));
 919
 920                         var query = "backend.php?op=rpc&subop=assignToLabel&ids=" +
 921                                 param_escape(ids.toString()) + "&lid=" + param_escape(id);
 922
 923 //                      notify_progress("Loading, please wait...");
 924
 925                         new Ajax.Request(query, {
 926                                 onComplete: function(transport) {
 927                                         show_labels_in_headlines(transport);
 928                                         all_counters_callback2(transport);
 929                                 } });
 930
 931 //              }
 932
 933         } catch (e) {
 934                 exception_error("selectionAssignLabel", e);
 935
 936         }
 937 }
 938
 939 function selectionToggleUnread(cdm_mode, set_state, callback_func, no_error) {
 940         try {
 941                 var rows;
 942
 943                 if (cdm_mode) {
 944                         rows = cdmGetSelectedArticles();
 945                 } else {
 946                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 947                 }
 948
 949                 if (rows.length == 0 && !no_error) {
 950                         alert(__("No articles are selected."));
 951                         return;
 952                 }
 953
 954                 for (i = 0; i < rows.length; i++) {
 955                         var row = document.getElementById("RROW-" + rows[i]);
 956                         if (row) {
 957                                 var nc = row.className;
 958                                 nc = nc.replace("Unread", "");
 959                                 nc = nc.replace("Selected", "");
 960
 961                                 if (set_state == undefined) {
 962                                         if (row.className.match("Unread")) {
 963                                                 row.className = nc + "Selected";
 964                                         } else {
 965                                                 row.className = nc + "UnreadSelected";
 966                                         }
 967                                 }
 968
 969                                 if (set_state == false) {
 970                                         row.className = nc + "Selected";
 971                                 }
 972
 973                                 if (set_state == true) {
 974                                         row.className = nc + "UnreadSelected";
 975                                 }
 976                         }
 977                 }
 978
 979                 if (rows.length > 0) {
 980
 981                         var cmode = "";
 982
 983                         if (set_state == undefined) {
 984                                 cmode = "2";
 985                         } else if (set_state == true) {
 986                                 cmode = "1";
 987                         } else if (set_state == false) {
 988                                 cmode = "0";
 989                         }
 990
 991                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
 992                                 param_escape(rows.toString()) + "&cmode=" + cmode;
 993
 994                         notify_progress("Loading, please wait...");
 995
 996                         new Ajax.Request(query, {
 997                                 onComplete: function(transport) {
 998                                         catchup_callback2(transport, callback_func);
 999                                 } });
1000
1001                 }
1002
1003         } catch (e) {
1004                 exception_error("selectionToggleUnread", e);
1005         }
1006 }
1007
1008 function selectionToggleMarked(cdm_mode) {
1009         try {
1010
1011                 var rows;
1012
1013                 if (cdm_mode) {
1014                         rows = cdmGetSelectedArticles();
1015                 } else {
1016                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1017                 }
1018
1019                 if (rows.length == 0) {
1020                         alert(__("No articles are selected."));
1021                         return;
1022                 }
1023
1024                 for (i = 0; i < rows.length; i++) {
1025                         toggleMark(rows[i], true, true);
1026                 }
1027
1028                 if (rows.length > 0) {
1029
1030                         var query = "backend.php?op=rpc&subop=markSelected&ids=" +
1031                                 param_escape(rows.toString()) + "&cmode=2";
1032
1033                         query = query + "&afid=" + getActiveFeedId();
1034
1035 /*                      if (tagsAreDisplayed()) {
1036                                 query = query + "&omode=tl";
1037                         } else {
1038                                 query = query + "&omode=flc";
1039                         } */
1040
1041                         query = query + "&omode=lc";
1042
1043                         new Ajax.Request(query, {
1044                                 onComplete: function(transport) {
1045                                         all_counters_callback2(transport);
1046                                 } });
1047
1048                 }
1049
1050         } catch (e) {
1051                 exception_error("selectionToggleMarked", e);
1052         }
1053 }
1054
1055 function selectionTogglePublished(cdm_mode) {
1056         try {
1057
1058                 var rows;
1059
1060                 if (cdm_mode) {
1061                         rows = cdmGetSelectedArticles();
1062                 } else {
1063                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1064                 }
1065
1066                 if (rows.length == 0) {
1067                         alert(__("No articles are selected."));
1068                         return;
1069                 }
1070
1071                 for (i = 0; i < rows.length; i++) {
1072                         togglePub(rows[i], true, true);
1073                 }
1074
1075                 if (rows.length > 0) {
1076
1077                         var query = "backend.php?op=rpc&subop=publishSelected&ids=" +
1078                                 param_escape(rows.toString()) + "&cmode=2";
1079
1080                         query = query + "&afid=" + getActiveFeedId();
1081
1082 /*                      if (tagsAreDisplayed()) {
1083                                 query = query + "&omode=tl";
1084                         } else {
1085                                 query = query + "&omode=flc";
1086                         } */
1087
1088                         query = query + "&omode=lc";
1089
1090                         new Ajax.Request(query, {
1091                                 onComplete: function(transport) {
1092                                         all_counters_callback2(transport);
1093                                 } });
1094
1095                 }
1096
1097         } catch (e) {
1098                 exception_error("selectionToggleMarked", e);
1099         }
1100 }
1101
1102 function cdmGetSelectedArticles() {
1103         var sel_articles = new Array();
1104         var container = document.getElementById("headlinesInnerContainer");
1105
1106         for (i = 0; i < container.childNodes.length; i++) {
1107                 var child = container.childNodes[i];
1108
1109                 if (child.id && child.id.match("RROW-") && child.className.match("Selected")) {
1110                         var c_id = child.id.replace("RROW-", "");
1111                         sel_articles.push(c_id);
1112                 }
1113         }
1114
1115         return sel_articles;
1116 }
1117
1118 function cdmGetVisibleArticles() {
1119         var sel_articles = new Array();
1120         var container = document.getElementById("headlinesInnerContainer");
1121
1122         if (!container) return sel_articles;
1123
1124         for (i = 0; i < container.childNodes.length; i++) {
1125                 var child = container.childNodes[i];
1126
1127                 if (child.id && child.id.match("RROW-")) {
1128                         var c_id = child.id.replace("RROW-", "");
1129                         sel_articles.push(c_id);
1130                 }
1131         }
1132
1133         return sel_articles;
1134 }
1135
1136 function cdmGetUnreadArticles() {
1137         var sel_articles = new Array();
1138         var container = document.getElementById("headlinesInnerContainer");
1139
1140         for (i = 0; i < container.childNodes.length; i++) {
1141                 var child = container.childNodes[i];
1142
1143                 if (child.id && child.id.match("RROW-") && child.className.match("Unread")) {
1144                         var c_id = child.id.replace("RROW-", "");
1145                         sel_articles.push(c_id);
1146                 }
1147         }
1148
1149         return sel_articles;
1150 }
1151
1152
1153 // mode = all,none,unread
1154 function cdmSelectArticles(mode) {
1155         var container = document.getElementById("headlinesInnerContainer");
1156
1157         for (i = 0; i < container.childNodes.length; i++) {
1158                 var child = container.childNodes[i];
1159
1160                 if (child.id && child.id.match("RROW-")) {
1161                         var aid = child.id.replace("RROW-", "");
1162
1163                         var cb = document.getElementById("RCHK-" + aid);
1164
1165                         if (mode == "all") {
1166                                 if (!child.className.match("Selected")) {
1167                                         child.className = child.className + "Selected";
1168                                         cb.checked = true;
1169                                 }
1170                         } else if (mode == "unread") {
1171                                 if (child.className.match("Unread") && !child.className.match("Selected")) {
1172                                         child.className = child.className + "Selected";
1173                                         cb.checked = true;
1174                                 }
1175                         } else {
1176                                 child.className = child.className.replace("Selected", "");
1177                                 cb.checked = false;
1178                         }
1179                 }
1180         }
1181 }
1182
1183 function catchupPage() {
1184
1185         var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
1186
1187         var str = __("Mark all visible articles in %s as read?");
1188
1189         str = str.replace("%s", fn);
1190
1191         if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1192                 return;
1193         }
1194
1195         if (document.getElementById("headlinesList")) {
1196                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, 'Unread', true);
1197                 selectionToggleUnread(false, false, 'viewCurrentFeed()', true);
1198                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
1199         } else {
1200                 cdmSelectArticles('all');
1201                 selectionToggleUnread(true, false, 'viewCurrentFeed()', true)
1202                 cdmSelectArticles('none');
1203         }
1204 }
1205
1206 function catchupSelection() {
1207
1208         try {
1209
1210                 var rows;
1211
1212                 if (document.getElementById("headlinesList")) {
1213                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1214                 } else {
1215                         rows = cdmGetSelectedArticles();
1216                 }
1217
1218                 if (rows.length == 0) {
1219                         alert(__("No articles are selected."));
1220                         return;
1221                 }
1222
1223
1224                 var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
1225
1226                 var str = __("Mark %d selected articles in %s as read?");
1227
1228                 str = str.replace("%d", rows.length);
1229                 str = str.replace("%s", fn);
1230
1231                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1232                         return;
1233                 }
1234
1235                 if (document.getElementById("headlinesList")) {
1236                         selectionToggleUnread(false, false, 'viewCurrentFeed()', true);
1237         //              selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
1238                 } else {
1239                         selectionToggleUnread(true, false, 'viewCurrentFeed()', true)
1240         //              cdmSelectArticles('none');
1241                 }
1242
1243         } catch (e) {
1244                 exception_error("catchupSelection", e);
1245         }
1246 }
1247
1248 function editArticleTags(id, feed_id, cdm_enabled) {
1249         displayDlg('editArticleTags', id);
1250 }
1251
1252
1253 function tag_saved_callback(transport) {
1254         try {
1255                 debug("in tag_saved_callback");
1256
1257                 closeInfoBox();
1258                 notify("");
1259
1260                 if (tagsAreDisplayed()) {
1261                         _reload_feedlist_after_view = true;
1262                 }
1263
1264
1265                 if (transport.responseXML) {
1266                         var tags_str = transport.responseXML.getElementsByTagName("tags-str")[0];
1267
1268                         if (tags_str) {
1269                                 var id = tags_str.getAttribute("id");
1270
1271                                 if (id) {
1272                                         var tags = document.getElementById("ATSTR-" + id);
1273                                         if (tags) {
1274                                                 tags.innerHTML = tags_str.firstChild.nodeValue;
1275                                         }
1276                                 }
1277                         }
1278                 }
1279
1280         } catch (e) {
1281                 exception_error("tag_saved_callback", e);
1282         }
1283 }
1284
1285 function editTagsSave() {
1286
1287         notify_progress("Saving article tags...");
1288
1289         var form = document.forms["tag_edit_form"];
1290
1291         var query = Form.serialize("tag_edit_form");
1292
1293         query = "backend.php?op=rpc&subop=setArticleTags&" + query;
1294
1295         debug(query);
1296
1297         new Ajax.Request(query, {
1298                 onComplete: function(transport) {
1299                                 tag_saved_callback(transport);
1300                         } });
1301
1302 }
1303
1304 function editTagsInsert() {
1305         try {
1306
1307                 var form = document.forms["tag_edit_form"];
1308
1309                 var found_tags = form.found_tags;
1310                 var tags_str = form.tags_str;
1311
1312                 var tag = found_tags[found_tags.selectedIndex].value;
1313
1314                 if (tags_str.value.length > 0 &&
1315                                 tags_str.value.lastIndexOf(", ") != tags_str.value.length - 2) {
1316
1317                         tags_str.value = tags_str.value + ", ";
1318                 }
1319
1320                 tags_str.value = tags_str.value + tag + ", ";
1321
1322                 found_tags.selectedIndex = 0;
1323
1324         } catch (e) {
1325                 exception_error("editTagsInsert", e);
1326         }
1327 }
1328
1329 function cdmScrollViewport(where) {
1330         debug("cdmScrollViewport: " + where);
1331
1332         var ctr = document.getElementById("headlinesInnerContainer");
1333
1334         if (!ctr) return;
1335
1336         if (where == "bottom") {
1337                 ctr.scrollTop = ctr.scrollHeight;
1338         } else {
1339                 ctr.scrollTop = where;
1340         }
1341 }
1342
1343 function cdmArticleIsBelowViewport(id) {
1344         try {
1345                 var ctr = document.getElementById("headlinesInnerContainer");
1346                 var e = document.getElementById("RROW-" + id);
1347
1348                 if (!e || !ctr) return;
1349
1350                 // article starts below viewport
1351
1352                 if (ctr.scrollTop < e.offsetTop) {
1353                         return true;
1354                 } else {
1355                         return false;
1356                 }
1357
1358         } catch (e) {
1359                 exception_error("cdmArticleIsVisible", e);
1360         }
1361 }
1362
1363 function cdmArticleIsAboveViewport(id) {
1364         try {
1365                 var ctr = document.getElementById("headlinesInnerContainer");
1366                 var e = document.getElementById("RROW-" + id);
1367
1368                 if (!e || !ctr) return;
1369
1370                 // article starts above viewport
1371
1372                 if (ctr.scrollTop > e.offsetTop + e.offsetHeight) {
1373                         return true;
1374                 } else {
1375                         return false;
1376                 }
1377
1378         } catch (e) {
1379                 exception_error("cdmArticleIsVisible", e);
1380         }
1381 }
1382
1383 function cdmScrollToArticleId(id) {
1384         try {
1385                 var ctr = document.getElementById("headlinesInnerContainer");
1386                 var e = document.getElementById("RROW-" + id);
1387
1388                 if (!e || !ctr) return;
1389
1390                 ctr.scrollTop = e.offsetTop;
1391
1392         } catch (e) {
1393                 exception_error("cdmScrollToArticleId", e);
1394         }
1395 }
1396
1397 function cdmArticleIsActuallyVisible(id) {
1398         try {
1399                 var ctr = document.getElementById("headlinesInnerContainer");
1400                 var e = document.getElementById("RROW-" + id);
1401
1402                 if (!e || !ctr) return;
1403
1404                 // article fits in viewport OR article is longer than viewport and
1405                 // its bottom is visible
1406
1407                 if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <=
1408                                 ctr.scrollTop + ctr.offsetHeight) {
1409
1410                         return true;
1411
1412                 } else if (e.offsetHeight > ctr.offsetHeight &&
1413                                 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1414                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
1415
1416                         return true;
1417
1418                 }
1419
1420                 return false;
1421
1422         } catch (e) {
1423                 exception_error("cdmArticleIsVisible", e);
1424         }
1425 }
1426
1427 function cdmWatchdog() {
1428
1429         try {
1430
1431                 var ctr = document.getElementById("headlinesInnerContainer");
1432
1433                 if (!ctr) return;
1434
1435                 var ids = new Array();
1436
1437                 var e = ctr.firstChild;
1438
1439                 while (e) {
1440                         if (e.className && e.className == "cdmArticleUnread" && e.id &&
1441                                         e.id.match("RROW-")) {
1442
1443                                 // article fits in viewport OR article is longer than viewport and
1444                                 // its bottom is visible
1445
1446                                 if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <=
1447                                                 ctr.scrollTop + ctr.offsetHeight) {
1448
1449 //                                      debug(e.id + " is visible " + e.offsetTop + "." +
1450 //                                              (e.offsetTop + e.offsetHeight) + " vs " + ctr.scrollTop + "." +
1451 //                                              (ctr.scrollTop + ctr.offsetHeight));
1452
1453                                         ids.push(e.id.replace("RROW-", ""));
1454
1455                                 } else if (e.offsetHeight > ctr.offsetHeight &&
1456                                                 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1457                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
1458
1459                                         ids.push(e.id.replace("RROW-", ""));
1460
1461                                 }
1462
1463                                 // method 2: article bottom is visible and is in upper 1/2 of the viewport
1464
1465 /*                              if (e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1466                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight/2) {
1467
1468                                         ids.push(e.id.replace("RROW-", ""));
1469
1470                                 } */
1471
1472                         }
1473
1474                         e = e.nextSibling;
1475                 }
1476
1477                 debug("cdmWatchdog, ids= " + ids.toString());
1478
1479                 if (ids.length > 0) {
1480
1481                         for (var i = 0; i < ids.length; i++) {
1482                                 var e = document.getElementById("RROW-" + ids[i]);
1483                                 if (e) {
1484                                         e.className = e.className.replace("Unread", "");
1485                                 }
1486                         }
1487
1488                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
1489                                 param_escape(ids.toString()) + "&cmode=0";
1490
1491                         new Ajax.Request(query, {
1492                                 onComplete: function(transport) {
1493                                         all_counters_callback2(transport);
1494                                 } });
1495
1496                 }
1497
1498                 _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 4000);
1499
1500         } catch (e) {
1501                 exception_error("cdmWatchdog", e);
1502         }
1503
1504 }
1505
1506
1507 function cache_inject(id, article, param) {
1508         try {
1509                 if (!cache_check_param(id, param)) {
1510                         debug("cache_article: miss: " + id + " [p=" + param + "]");
1511
1512
1513                         if (db) {
1514
1515                            var date = new Date();
1516                       var ts = Math.round(date.getTime() / 1000);
1517
1518                                 db.execute("INSERT INTO cache (id, article, param, added) VALUES (?, ?, ?, ?)",
1519                                         [id, article, param, ts]);
1520                         } else {
1521
1522                                 var cache_obj = new Array();
1523
1524                                 cache_obj["id"] = id;
1525                                 cache_obj["data"] = article;
1526                                 cache_obj["param"] = param;
1527
1528                                 article_cache.push(cache_obj);
1529                         }
1530
1531                 } else {
1532                         debug("cache_article: hit: " + id + " [p=" + param + "]");
1533                 }
1534         } catch (e) {
1535                 exception_error("cache_inject", e);
1536         }
1537 }
1538
1539 function cache_find(id) {
1540
1541         if (db) {
1542                 var rs = db.execute("SELECT article FROM cache WHERE id = ?", [id]);
1543
1544                 if (rs.isValidRow()) {
1545                         return rs.field(0);
1546                 }
1547
1548         } else {
1549                 for (var i = 0; i < article_cache.length; i++) {
1550                         if (article_cache[i]["id"] == id) {
1551                                 return article_cache[i]["data"];
1552                         }
1553                 }
1554         }
1555         return false;
1556 }
1557
1558 function cache_find_param(id, param) {
1559
1560         if (db) {
1561                 var rs = db.execute("SELECT article FROM cache WHERE id = ? AND param = ?",
1562                         [id, param]);
1563
1564                 if (rs.isValidRow()) {
1565                         return rs.field(0);
1566                 }
1567
1568         } else {
1569                 for (var i = 0; i < article_cache.length; i++) {
1570                         if (article_cache[i]["id"] == id && article_cache[i]["param"] == param) {
1571                                 return article_cache[i]["data"];
1572                         }
1573                 }
1574         }
1575         return false;
1576 }
1577
1578 function cache_check(id) {
1579
1580         if (db) {
1581                 var rs = db.execute("SELECT COUNT(*) AS c FROM cache WHERE id = ?",
1582                         [id]);
1583
1584                 if (rs.isValidRow()) {
1585                         return rs.field(0) != "0";
1586                 }
1587
1588         } else {
1589                 for (var i = 0; i < article_cache.length; i++) {
1590                         if (article_cache[i]["id"] == id) {
1591                                 return true;
1592                         }
1593                 }
1594         }
1595         return false;
1596 }
1597
1598 function cache_check_param(id, param) {
1599
1600         if (db) {
1601                 var rs = db.execute("SELECT COUNT(*) AS c FROM cache WHERE id = ? AND param = ?",
1602                         [id, param]);
1603
1604                 if (rs.isValidRow()) {
1605                         return rs.field(0) != "0";
1606                 }
1607
1608         } else {
1609                 for (var i = 0; i < article_cache.length; i++) {
1610                         if (article_cache[i]["id"] == id && article_cache[i]["param"] == param) {
1611                                 return true;
1612                         }
1613                 }
1614         }
1615         return false;
1616 }
1617
1618 function cache_expire() {
1619         if (db) {
1620                 var date = new Date();
1621                 var ts = Math.round(date.getTime() / 1000);
1622
1623                 db.execute("DELETE FROM cache WHERE added < ? - 1800 AND id LIKE 'FEEDLIST'", [ts]);
1624                 db.execute("DELETE FROM cache WHERE added < ? - 600 AND (id LIKE 'F:%' OR id LIKE 'C:%')", [ts]);
1625                 db.execute("DELETE FROM cache WHERE added < ? - 86400", [ts]);
1626
1627
1628         } else {
1629                 while (article_cache.length > 25) {
1630                         article_cache.shift();
1631                 }
1632         }
1633 }
1634
1635 function cache_empty() {
1636         article_cache = new Array();
1637 }
1638
1639 function cache_invalidate(id) {
1640         try {
1641
1642                 if (db) {
1643                         rs = db.execute("DELETE FROM cache WHERE id = ?", [id]);
1644                         return rs.rowsAffected != 0;
1645                 } else {
1646
1647                         var i = 0
1648
1649                         while (i < article_cache.length) {
1650                                 if (article_cache[i]["id"] == id) {
1651                                         debug("cache_invalidate: removed id " + id);
1652                                         article_cache.splice(i, 1);
1653                                         return true;
1654                                 }
1655                                 i++;
1656                         }
1657                 }
1658
1659                 debug("cache_invalidate: id not found: " + id);
1660                 return false;
1661         } catch (e) {
1662                 exception_error("cache_invalidate", e);
1663         }
1664 }
1665
1666 function getActiveArticleId() {
1667         return active_post_id;
1668 }
1669
1670 function cdmClicked(id) {
1671         try {
1672                 var elem = document.getElementById("RROW-" + id);
1673
1674                 if (elem) {
1675                         var id = elem.id.replace("RROW-", "");
1676                         active_post_id = id;
1677
1678                         cdmSelectArticles("none");
1679                         toggleUnread(id, 0, true);
1680                         toggleSelected(id);
1681
1682                 }
1683         } catch (e) {
1684                 exception_error("cdmClicked", e);
1685         }
1686 }
1687
1688 function preload_article_callback(transport) {
1689         try {
1690                 if (transport.responseXML) {
1691                         var articles = transport.responseXML.getElementsByTagName("article");
1692
1693                         for (var i = 0; i < articles.length; i++) {
1694                                 var id = articles[i].getAttribute("id");
1695                                 if (!cache_check(id)) {
1696                                         cache_inject(id, articles[i].firstChild.nodeValue);
1697                                         debug("preloaded article: " + id);
1698                                 }
1699                         }
1700                 }
1701         } catch (e) {
1702                 exception_error("preload_article_callback", e);
1703         }
1704 }
1705
1706 function preloadArticleUnderPointer(id) {
1707         try {
1708                 if (getInitParam("bw_limit") == "1") return;
1709
1710                 if (post_under_pointer == id && !cache_check(id)) {
1711
1712                         debug("trying to preload article " + id);
1713
1714                         var neighbor_ids = getRelativePostIds(id, 1);
1715
1716                         /* only request uncached articles */
1717
1718                         var cids_to_request = Array();
1719
1720                         for (var i = 0; i < neighbor_ids.length; i++) {
1721                                 if (!cache_check(neighbor_ids[i])) {
1722                                         cids_to_request.push(neighbor_ids[i]);
1723                                 }
1724                         }
1725                         debug("additional ids: " + cids_to_request.toString());
1726
1727                         cids_to_request.push(id);
1728
1729                         var query = "backend.php?op=rpc&subop=getArticles&ids=" +
1730                                 cids_to_request.toString();
1731                         new Ajax.Request(query, {
1732                                 onComplete: function(transport) {
1733                                         preload_article_callback(transport);
1734                         } });
1735                 }
1736         } catch (e) {
1737                 exception_error("preloadArticleUnderPointer", e);
1738         }
1739 }
1740
1741 function postMouseIn(id) {
1742         try {
1743                 if (post_under_pointer != id) {
1744                         post_under_pointer = id;
1745                         if (!isCdmMode()) {
1746                                 window.setTimeout("preloadArticleUnderPointer(" + id + ")", 250);
1747                         }
1748                 }
1749
1750         } catch (e) {
1751                 exception_error("postMouseIn", e);
1752         }
1753 }
1754
1755 function postMouseOut(id) {
1756         try {
1757                 post_under_pointer = false;
1758         } catch (e) {
1759                 exception_error("postMouseOut", e);
1760         }
1761 }
1762
1763 function headlines_scroll_handler() {
1764         try {
1765
1766                 var e = document.getElementById("headlinesInnerContainer");
1767
1768                 // don't do infinite scrolling when Limit == All
1769
1770                 var toolbar_form = document.forms["main_toolbar_form"];
1771
1772                 var limit = toolbar_form.limit[toolbar_form.limit.selectedIndex];
1773                 if (limit.value != 0) {
1774
1775                         debug((e.scrollTop + e.offsetHeight) + " vs " + e.scrollHeight + " dis? " +
1776                                 _infscroll_disable);
1777
1778                         if (e.scrollTop + e.offsetHeight > e.scrollHeight - 100) {
1779                                 if (!_infscroll_disable) {
1780                                         debug("more cowbell!");
1781                                         viewNextFeedPage();
1782                                 }
1783                         }
1784                 }
1785
1786         } catch (e) {
1787                 exception_error("headlines_scroll_handler", e);
1788         }
1789 }
1790
1791 function catchupRelativeToArticle(below) {
1792
1793         try {
1794
1795
1796                 if (!getActiveArticleId()) {
1797                         alert(__("No article is selected."));
1798                         return;
1799                 }
1800
1801                 var visible_ids;
1802
1803                 if (document.getElementById("headlinesList")) {
1804                         visible_ids = getVisibleHeadlineIds();
1805                 } else {
1806                         visible_ids = cdmGetVisibleArticles();
1807                 }
1808
1809                 var ids_to_mark = new Array();
1810
1811                 if (!below) {
1812                         for (var i = 0; i < visible_ids.length; i++) {
1813                                 if (visible_ids[i] != getActiveArticleId()) {
1814                                         var e = document.getElementById("RROW-" + visible_ids[i]);
1815
1816                                         if (e && e.className.match("Unread")) {
1817                                                 ids_to_mark.push(visible_ids[i]);
1818                                         }
1819                                 } else {
1820                                         break;
1821                                 }
1822                         }
1823                 } else {
1824                         for (var i = visible_ids.length-1; i >= 0; i--) {
1825                                 if (visible_ids[i] != getActiveArticleId()) {
1826                                         var e = document.getElementById("RROW-" + visible_ids[i]);
1827
1828                                         if (e && e.className.match("Unread")) {
1829                                                 ids_to_mark.push(visible_ids[i]);
1830                                         }
1831                                 } else {
1832                                         break;
1833                                 }
1834                         }
1835                 }
1836
1837                 if (ids_to_mark.length == 0) {
1838                         alert(__("No articles found to mark"));
1839                 } else {
1840                         var msg = __("Mark %d article(s) as read?").replace("%d", ids_to_mark.length);
1841
1842                         if (confirm(msg)) {
1843
1844                                 for (var i = 0; i < ids_to_mark.length; i++) {
1845                                         var e = document.getElementById("RROW-" + ids_to_mark[i]);
1846                                         e.className = e.className.replace("Unread", "");
1847                                 }
1848
1849                                 var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
1850                                         param_escape(ids_to_mark.toString()) + "&cmode=0";
1851
1852                                 new Ajax.Request(query, {
1853                                         onComplete: function(transport) {
1854                                                 catchup_callback2(transport);
1855                                         } });
1856
1857                         }
1858                 }
1859
1860         } catch (e) {
1861                 exception_error("catchupRelativeToArticle", e);
1862         }
1863 }
1864
1865 function cdmExpandArticle(a_id) {
1866         try {
1867                 var id = 'CICD-' + a_id;
1868
1869                 try {
1870                         Element.hide("CEXC-" + a_id);
1871                 } catch (e) { }
1872
1873                 Effect.Appear(id, {duration : 0.5,
1874                         beforeStart: function(effect) {
1875                                 var h_id = 'CICH-' + a_id;
1876                                 var h_elem = document.getElementById(h_id);
1877                                 if (h_elem) { h_elem.style.display = "none"; }
1878
1879                                 toggleUnread(a_id, 0);
1880                         }});
1881
1882
1883         } catch (e) {
1884                 exception_error("appearBlockElementF", e);
1885         }
1886
1887 }
1888
1889 function fixHeadlinesOrder(ids) {
1890         try {
1891                 for (var i = 0; i < ids.length; i++) {
1892                         var e = document.getElementById("RROW-" + ids[i]);
1893
1894                         if (e) {
1895                                 if (i % 2 == 0) {
1896                                         e.className = e.className.replace("even", "odd");
1897                                 } else {
1898                                         e.className = e.className.replace("odd", "even");
1899                                 }
1900                         }
1901                 }
1902         } catch (e) {
1903                 exception_error("fixHeadlinesOrder", e);
1904         }
1905 }
1906
1907 function hideReadHeadlines() {
1908         try {
1909
1910                 var ids = false;
1911                 var vis_ids = new Array();
1912
1913                 if (document.getElementById("headlinesList")) {
1914                         ids = getVisibleHeadlineIds();
1915                 } else {
1916                         ids = cdmGetVisibleArticles();
1917                 }
1918
1919                 var read_headlines_visible = true;
1920
1921                 for (var i = 0; i < ids.length; i++) {
1922                         var row = document.getElementById("RROW-" + ids[i]);
1923
1924                         if (row && row.className) {
1925                                 if (read_headlines_visible) {
1926                                         if (row.className.match("Unread") || row.className.match("Selected")) {
1927                                                 Element.show(row);
1928                                                 vis_ids.push(ids[i]);
1929                                         } else {
1930                                                 //Effect.Fade(row, {duration : 0.3});
1931                                                 Element.hide(row);
1932                                         }
1933                                 } else {
1934                                         Element.show(row);
1935                                         vis_ids.push(ids[i]);
1936                                 }
1937                         }
1938                 }
1939
1940                 fixHeadlinesOrder(vis_ids);
1941
1942                 read_headlines_visible = !read_headlines_visible;
1943
1944         } catch (e) {
1945                 exception_error("hideReadHeadlines", e);
1946         }
1947 }
1948
1949 function invertHeadlineSelection() {
1950         try {
1951                 var rows = new Array();
1952                 var r = false;
1953
1954                 if (!isCdmMode()) {
1955                         r = document.getElementsByTagName("TR");
1956                 } else {
1957                         r = document.getElementsByTagName("DIV");
1958                 }
1959
1960                 for (var i = 0; i < r.length; i++) {
1961                         if (r[i].id && r[i].id.match("RROW-")) {
1962                                 rows.push(r[i]);
1963                         }
1964                 }
1965
1966                 for (var i = 0; i < rows.length; i++) {
1967                         var nc = rows[i].className;
1968                         var id = rows[i].id.replace("RROW-", "");
1969                         var cb = document.getElementById("RCHK-" + id);
1970
1971                         if (!rows[i].className.match("Selected")) {
1972                                 nc = nc + "Selected";
1973                                 cb.checked = true;
1974                         } else {
1975                                 nc = nc.replace("Selected", "");
1976                                 cb.checked = false;
1977                         }
1978
1979                         rows[i].className = nc;
1980
1981                 }
1982
1983         } catch (e) {
1984                 exception_error("invertHeadlineSelection", e);
1985         }
1986 }
1987
1988 function getArticleUnderPointer() {
1989         return post_under_pointer;
1990 }
1991
1992 function zoomToArticle(id) {
1993         try {
1994                 var w = window.open("backend.php?op=view&mode=zoom&id=" + param_escape(id),
1995                         "ttrss_zoom_" + id,
1996                         "status=0,toolbar=0,location=0,width=450,height=300,scrollbars=1,menubar=0");
1997
1998         } catch (e) {
1999                 exception_error("zoomToArticle", e);
2000         }
2001 }
2002
2003 function showOriginalArticleInline(id) {
2004         try {
2005
2006                 var query = "backend.php?op=rpc&subop=getArticleLink&id=" + id;
2007
2008                 notify_progress("Loading, please wait...", true);
2009
2010                 new Ajax.Request(query, {
2011                         onComplete: function(transport) {
2012
2013                                 if (transport.responseXML) {
2014
2015                                         var link = transport.responseXML.getElementsByTagName("link")[0];
2016                                         var id = transport.responseXML.getElementsByTagName("id")[0];
2017
2018                                         notify("");
2019
2020                                         if (link && id) {
2021                                                 link = link.firstChild.nodeValue;
2022
2023                                                 var ci = document.getElementById("content-insert");
2024
2025                                                 var tmp = "<iframe id=\"inline_orig_article\" width=\""+ci.offsetWidth+"\" height=\""+ci.offsetHeight+"\" style=\"border-width : 0px;\" src=\""+link+"\"></iframe>";
2026
2027                                                 render_article(tmp);
2028
2029                                         }
2030                                 }
2031                         } });
2032
2033         } catch (e) {
2034                 exception_error("showOriginalArticleInline", e);
2035         }
2036 }
2037
2038
2039 function scrollArticle(offset) {
2040         try {
2041                 if (!isCdmMode()) {
2042                         var ci = document.getElementById("content-insert");
2043                         if (ci) {
2044                                 ci.scrollTop += offset;
2045                         }
2046                 } else {
2047                         var hi = document.getElementById("headlinesInnerContainer");
2048                         if (hi) {
2049                                 hi.scrollTop += offset;
2050                         }
2051
2052                 }
2053         } catch (e) {
2054                 exception_error("scrollArticle", e);
2055         }
2056 }
2057
2058 function show_labels_in_headlines(transport) {
2059         try {
2060                 if (transport.responseXML) {
2061                         var info = transport.responseXML.getElementsByTagName("info-for-headlines")[0];
2062
2063                         var elems = info.getElementsByTagName("entry");
2064
2065                         for (var l = 0; l < elems.length; l++) {
2066                                 var e_id = elems[l].getAttribute("id");
2067
2068                                 if (e_id) {
2069
2070                                         var ctr = document.getElementById("HLLCTR-" + e_id);
2071
2072                                         if (ctr) {
2073                                                 ctr.innerHTML = elems[l].firstChild.nodeValue;
2074                                         }
2075                                 }
2076
2077                         }
2078
2079                 }
2080         } catch (e) {
2081                 exception_error("show_labels_in_headlines", e);
2082
2083         }
2084 }
2085
2086 function toggleHeadlineActions() {
2087         try {
2088                 var e = document.getElementById("headlineActionsBody");
2089                 var p = document.getElementById("headlineActionsDrop");
2090
2091                 if (!Element.visible(e)) {
2092                         Element.show(e);
2093                 } else {
2094                         Element.hide(e);
2095                 }
2096
2097                 e.scrollTop = 0;
2098                 e.style.left = (p.offsetLeft + 1) + "px";
2099 //              e.style.top = (p.offsetTop + p.offsetHeight - 1) + "px";
2100
2101         } catch (e) {
2102                 exception_error("toggleHeadlineActions", e);
2103         }
2104 }