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_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                 if (!client_only) {
 589                         debug(query);
 590
 591                         new Ajax.Request(query, {
 592                                 onComplete: function(transport) {
 593                                         all_counters_callback2(transport);
 594                                 } });
 595
 596                 }
 597
 598         } catch (e) {
 599                 exception_error("toggleMark", e);
 600         }
 601 }
 602
 603 function togglePub(id, client_only, no_effects) {
 604
 605         try {
 606
 607                 var query = "backend.php?op=rpc&id=" + id + "&subop=publ";
 608
 609                 query = query + "&afid=" + getActiveFeedId();
 610
 611                 if (tagsAreDisplayed()) {
 612                         query = query + "&omode=tl";
 613                 } else {
 614                         query = query + "&omode=flc";
 615                 }
 616
 617                 var mark_img = document.getElementById("FPPIC-" + id);
 618
 619                 if (!mark_img) return;
 620
 621                 var vfeedu = document.getElementById("FEEDU--2");
 622                 var crow = document.getElementById("RROW-" + id);
 623
 624                 if (mark_img.src.match("pub_unset")) {
 625                         mark_img.src = mark_img.src.replace("pub_unset", "pub_set");
 626                         mark_img.alt = __("Unpublish article");
 627                         query = query + "&pub=1";
 628
 629
 630                 } else {
 631                         //mark_img.src = "images/pub_unset.png";
 632                         mark_img.alt = __("Please wait...");
 633                         query = query + "&pub=0";
 634
 635                         if (document.getElementById("headlinesList") && !no_effects) {
 636                                 Effect.Puff(mark_img, {duration : 0.25, afterFinish: tPub_afh_off});
 637                         } else {
 638                                 mark_img.src = mark_img.src.replace("pub_set", "pub_unset");
 639                                 mark_img.alt = __("Publish article");
 640                         }
 641                 }
 642
 643                 if (!client_only) {
 644                         new Ajax.Request(query, {
 645                                 onComplete: function(transport) {
 646                                         all_counters_callback2(transport);
 647                                 } });
 648                 }
 649
 650         } catch (e) {
 651
 652                 exception_error("togglePub", e);
 653         }
 654 }
 655
 656 function correctHeadlinesOffset(id) {
 657
 658         try {
 659
 660                 var hlist = document.getElementById("headlinesList");
 661                 var container = document.getElementById("headlinesInnerContainer");
 662                 var row = document.getElementById("RROW-" + id);
 663
 664                 var viewport = container.offsetHeight;
 665
 666                 var rel_offset_top = row.offsetTop - container.scrollTop;
 667                 var rel_offset_bottom = row.offsetTop + row.offsetHeight - container.scrollTop;
 668
 669                 debug("Rtop: " + rel_offset_top + " Rbtm: " + rel_offset_bottom);
 670                 debug("Vport: " + viewport);
 671
 672                 if (rel_offset_top <= 0 || rel_offset_top > viewport) {
 673                         container.scrollTop = row.offsetTop;
 674                 } else if (rel_offset_bottom > viewport) {
 675
 676                         /* doesn't properly work with Opera in some cases because
 677                                 Opera fucks up element scrolling */
 678
 679                         container.scrollTop = row.offsetTop + row.offsetHeight - viewport;
 680                 }
 681
 682         } catch (e) {
 683                 exception_error("correctHeadlinesOffset", e);
 684         }
 685
 686 }
 687
 688 function moveToPost(mode) {
 689
 690         try {
 691
 692                 var rows;
 693
 694                 if (isCdmMode()) {
 695                         rows = cdmGetVisibleArticles();
 696                 } else {
 697                         rows = getVisibleHeadlineIds();
 698                 }
 699
 700                 var prev_id = false;
 701                 var next_id = false;
 702
 703                 if (!document.getElementById('RROW-' + active_post_id)) {
 704                         active_post_id = false;
 705                 }
 706
 707                 if (active_post_id == false) {
 708                         next_id = getFirstVisibleHeadlineId();
 709                         prev_id = getLastVisibleHeadlineId();
 710                 } else {
 711                         for (var i = 0; i < rows.length; i++) {
 712                                 if (rows[i] == active_post_id) {
 713                                         prev_id = rows[i-1];
 714                                         next_id = rows[i+1];
 715                                 }
 716                         }
 717                 }
 718
 719                 if (mode == "next") {
 720                         if (next_id) {
 721                                 if (isCdmMode()) {
 722
 723                                         if (!cdmArticleIsActuallyVisible(next_id)) {
 724                                                 cdmScrollToArticleId(next_id);
 725                                         }
 726                                         cdmSelectArticles("none");
 727                                         toggleUnread(next_id, 0, true);
 728                                         toggleSelected(next_id);
 729
 730                                 } else {
 731                                         correctHeadlinesOffset(next_id);
 732                                         view(next_id, getActiveFeedId());
 733                                 }
 734                         }
 735                 }
 736
 737                 if (mode == "prev") {
 738                         if (prev_id) {
 739                                 if (isCdmMode()) {
 740                                         cdmScrollToArticleId(prev_id);
 741                                         cdmSelectArticles("none");
 742                                         toggleUnread(prev_id, 0, true);
 743                                         toggleSelected(prev_id);
 744                                 } else {
 745                                         correctHeadlinesOffset(prev_id);
 746                                         view(prev_id, getActiveFeedId());
 747                                 }
 748                         }
 749                 }
 750
 751         } catch (e) {
 752                 exception_error("moveToPost", e);
 753         }
 754 }
 755
 756 function toggleSelected(id) {
 757         try {
 758
 759                 var cb = document.getElementById("RCHK-" + id);
 760
 761                 var row = document.getElementById("RROW-" + id);
 762                 if (row) {
 763                         var nc = row.className;
 764
 765                         if (!nc.match("Selected")) {
 766                                 nc = nc + "Selected";
 767                                 if (cb) {
 768                                         cb.checked = true;
 769                                 }
 770
 771                                 // In CDM basically last selected article == active article
 772                                 if (isCdmMode()) active_post_id = id;
 773                         } else {
 774                                 nc = nc.replace("Selected", "");
 775                                 if (cb) {
 776                                         cb.checked = false;
 777                                 }
 778
 779                         }
 780
 781                         row.className = nc;
 782                 }
 783         } catch (e) {
 784                 exception_error("toggleSelected", e);
 785         }
 786 }
 787
 788 function toggleUnread_afh(effect) {
 789         try {
 790
 791                 var elem = effect.element;
 792                 elem.style.backgroundColor = "";
 793
 794         } catch (e) {
 795                 exception_error("toggleUnread_afh", e);
 796         }
 797 }
 798
 799 function toggleUnread(id, cmode, effect) {
 800         try {
 801
 802                 var row = document.getElementById("RROW-" + id);
 803                 if (row) {
 804                         var nc = row.className;
 805                         var is_selected = row.className.match("Selected");
 806                         nc = nc.replace("Unread", "");
 807                         nc = nc.replace("Selected", "");
 808
 809                         // since we are removing selection from the object, uncheck
 810                         // corresponding checkbox
 811
 812                         var cb = document.getElementById("RCHK-" + id);
 813                         if (cb) {
 814                                 cb.checked = false;
 815                         }
 816
 817                         // NOTE: I'm not sure that resetting selection here is a feature -fox
 818
 819                         if (cmode == undefined || cmode == 2) {
 820                                 if (row.className.match("Unread")) {
 821                                         row.className = nc;
 822
 823                                         if (effect) {
 824                                                 new Effect.Highlight(row, {duration: 1, startcolor: "#fff7d5",
 825                                                         afterFinish: toggleUnread_afh,
 826                                                         queue: { position:'end', scope: 'TMRQ-' + id, limit: 1 } } );
 827                                         }
 828
 829                                 } else {
 830                                         row.className = nc + "Unread";
 831                                 }
 832                         } else if (cmode == 0) {
 833                                 row.className = nc;
 834
 835                                 if (effect) {
 836                                         new Effect.Highlight(row, {duration: 1, startcolor: "#fff7d5",
 837                                                 afterFinish: toggleUnread_afh,
 838                                                 queue: { position:'end', scope: 'TMRQ-' + id, limit: 1 } } );
 839                                 }
 840                         } else if (cmode == 1) {
 841                                 row.className = nc + "Unread";
 842                         }
 843
 844                         // Disable unmarking as selected for the time being (16.05.08) -fox
 845                         if (is_selected) row.className = row.className + "Selected";
 846
 847                         if (cmode == undefined) cmode = 2;
 848
 849                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
 850                                 param_escape(id) + "&cmode=" + param_escape(cmode);
 851
 852 //                      notify_progress("Loading, please wait...");
 853
 854                         new Ajax.Request(query, {
 855                                 onComplete: function(transport) {
 856                                         all_counters_callback2(transport);
 857                                 } });
 858
 859                 }
 860
 861
 862         } catch (e) {
 863                 exception_error("toggleUnread", e);
 864         }
 865 }
 866
 867 function selectionRemoveLabel(id) {
 868         try {
 869
 870                 var ids = getSelectedArticleIds2();
 871
 872                 if (ids.length == 0) {
 873                         alert(__("No articles are selected."));
 874                         return;
 875                 }
 876
 877 //              var ok = confirm(__("Remove selected articles from label?"));
 878
 879 //              if (ok) {
 880
 881                         var query = "backend.php?op=rpc&subop=removeFromLabel&ids=" +
 882                                 param_escape(ids.toString()) + "&lid=" + param_escape(id);
 883
 884 //                      notify_progress("Loading, please wait...");
 885
 886                         cache_invalidate("F:" + (-11 - id));
 887
 888                         new Ajax.Request(query, {
 889                                 onComplete: function(transport) {
 890                                         show_labels_in_headlines(transport);
 891                                         all_counters_callback2(transport);
 892                                 } });
 893
 894 //              }
 895
 896         } catch (e) {
 897                 exception_error("selectionAssignLabel", e);
 898
 899         }
 900 }
 901
 902 function selectionAssignLabel(id) {
 903         try {
 904
 905                 var ids = getSelectedArticleIds2();
 906
 907                 if (ids.length == 0) {
 908                         alert(__("No articles are selected."));
 909                         return;
 910                 }
 911
 912 //              var ok = confirm(__("Assign selected articles to label?"));
 913
 914 //              if (ok) {
 915
 916                         cache_invalidate("F:" + (-11 - id));
 917
 918                         var query = "backend.php?op=rpc&subop=assignToLabel&ids=" +
 919                                 param_escape(ids.toString()) + "&lid=" + param_escape(id);
 920
 921 //                      notify_progress("Loading, please wait...");
 922
 923                         new Ajax.Request(query, {
 924                                 onComplete: function(transport) {
 925                                         show_labels_in_headlines(transport);
 926                                         all_counters_callback2(transport);
 927                                 } });
 928
 929 //              }
 930
 931         } catch (e) {
 932                 exception_error("selectionAssignLabel", e);
 933
 934         }
 935 }
 936
 937 function selectionToggleUnread(cdm_mode, set_state, callback_func, no_error) {
 938         try {
 939                 var rows;
 940
 941                 if (cdm_mode) {
 942                         rows = cdmGetSelectedArticles();
 943                 } else {
 944                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 945                 }
 946
 947                 if (rows.length == 0 && !no_error) {
 948                         alert(__("No articles are selected."));
 949                         return;
 950                 }
 951
 952                 for (i = 0; i < rows.length; i++) {
 953                         var row = document.getElementById("RROW-" + rows[i]);
 954                         if (row) {
 955                                 var nc = row.className;
 956                                 nc = nc.replace("Unread", "");
 957                                 nc = nc.replace("Selected", "");
 958
 959                                 if (set_state == undefined) {
 960                                         if (row.className.match("Unread")) {
 961                                                 row.className = nc + "Selected";
 962                                         } else {
 963                                                 row.className = nc + "UnreadSelected";
 964                                         }
 965                                 }
 966
 967                                 if (set_state == false) {
 968                                         row.className = nc + "Selected";
 969                                 }
 970
 971                                 if (set_state == true) {
 972                                         row.className = nc + "UnreadSelected";
 973                                 }
 974                         }
 975                 }
 976
 977                 if (rows.length > 0) {
 978
 979                         var cmode = "";
 980
 981                         if (set_state == undefined) {
 982                                 cmode = "2";
 983                         } else if (set_state == true) {
 984                                 cmode = "1";
 985                         } else if (set_state == false) {
 986                                 cmode = "0";
 987                         }
 988
 989                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
 990                                 param_escape(rows.toString()) + "&cmode=" + cmode;
 991
 992                         notify_progress("Loading, please wait...");
 993
 994                         new Ajax.Request(query, {
 995                                 onComplete: function(transport) {
 996                                         catchup_callback2(transport, callback_func);
 997                                 } });
 998
 999                 }
1000
1001         } catch (e) {
1002                 exception_error("selectionToggleUnread", e);
1003         }
1004 }
1005
1006 function selectionToggleMarked(cdm_mode) {
1007         try {
1008
1009                 var rows;
1010
1011                 if (cdm_mode) {
1012                         rows = cdmGetSelectedArticles();
1013                 } else {
1014                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1015                 }
1016
1017                 if (rows.length == 0) {
1018                         alert(__("No articles are selected."));
1019                         return;
1020                 }
1021
1022                 for (i = 0; i < rows.length; i++) {
1023                         toggleMark(rows[i], true, true);
1024                 }
1025
1026                 if (rows.length > 0) {
1027
1028                         var query = "backend.php?op=rpc&subop=markSelected&ids=" +
1029                                 param_escape(rows.toString()) + "&cmode=2";
1030
1031                         query = query + "&afid=" + getActiveFeedId();
1032
1033 /*                      if (tagsAreDisplayed()) {
1034                                 query = query + "&omode=tl";
1035                         } else {
1036                                 query = query + "&omode=flc";
1037                         } */
1038
1039                         query = query + "&omode=lc";
1040
1041                         new Ajax.Request(query, {
1042                                 onComplete: function(transport) {
1043                                         all_counters_callback2(transport);
1044                                 } });
1045
1046                 }
1047
1048         } catch (e) {
1049                 exception_error("selectionToggleMarked", e);
1050         }
1051 }
1052
1053 function selectionTogglePublished(cdm_mode) {
1054         try {
1055
1056                 var rows;
1057
1058                 if (cdm_mode) {
1059                         rows = cdmGetSelectedArticles();
1060                 } else {
1061                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1062                 }
1063
1064                 if (rows.length == 0) {
1065                         alert(__("No articles are selected."));
1066                         return;
1067                 }
1068
1069                 for (i = 0; i < rows.length; i++) {
1070                         togglePub(rows[i], true, true);
1071                 }
1072
1073                 if (rows.length > 0) {
1074
1075                         var query = "backend.php?op=rpc&subop=publishSelected&ids=" +
1076                                 param_escape(rows.toString()) + "&cmode=2";
1077
1078                         query = query + "&afid=" + getActiveFeedId();
1079
1080 /*                      if (tagsAreDisplayed()) {
1081                                 query = query + "&omode=tl";
1082                         } else {
1083                                 query = query + "&omode=flc";
1084                         } */
1085
1086                         query = query + "&omode=lc";
1087
1088                         new Ajax.Request(query, {
1089                                 onComplete: function(transport) {
1090                                         all_counters_callback2(transport);
1091                                 } });
1092
1093                 }
1094
1095         } catch (e) {
1096                 exception_error("selectionToggleMarked", e);
1097         }
1098 }
1099
1100 function cdmGetSelectedArticles() {
1101         var sel_articles = new Array();
1102         var container = document.getElementById("headlinesInnerContainer");
1103
1104         for (i = 0; i < container.childNodes.length; i++) {
1105                 var child = container.childNodes[i];
1106
1107                 if (child.id && child.id.match("RROW-") && child.className.match("Selected")) {
1108                         var c_id = child.id.replace("RROW-", "");
1109                         sel_articles.push(c_id);
1110                 }
1111         }
1112
1113         return sel_articles;
1114 }
1115
1116 function cdmGetVisibleArticles() {
1117         var sel_articles = new Array();
1118         var container = document.getElementById("headlinesInnerContainer");
1119
1120         if (!container) return sel_articles;
1121
1122         for (i = 0; i < container.childNodes.length; i++) {
1123                 var child = container.childNodes[i];
1124
1125                 if (child.id && child.id.match("RROW-")) {
1126                         var c_id = child.id.replace("RROW-", "");
1127                         sel_articles.push(c_id);
1128                 }
1129         }
1130
1131         return sel_articles;
1132 }
1133
1134 function cdmGetUnreadArticles() {
1135         var sel_articles = new Array();
1136         var container = document.getElementById("headlinesInnerContainer");
1137
1138         for (i = 0; i < container.childNodes.length; i++) {
1139                 var child = container.childNodes[i];
1140
1141                 if (child.id && child.id.match("RROW-") && child.className.match("Unread")) {
1142                         var c_id = child.id.replace("RROW-", "");
1143                         sel_articles.push(c_id);
1144                 }
1145         }
1146
1147         return sel_articles;
1148 }
1149
1150
1151 // mode = all,none,unread
1152 function cdmSelectArticles(mode) {
1153         var container = document.getElementById("headlinesInnerContainer");
1154
1155         for (i = 0; i < container.childNodes.length; i++) {
1156                 var child = container.childNodes[i];
1157
1158                 if (child.id && child.id.match("RROW-")) {
1159                         var aid = child.id.replace("RROW-", "");
1160
1161                         var cb = document.getElementById("RCHK-" + aid);
1162
1163                         if (mode == "all") {
1164                                 if (!child.className.match("Selected")) {
1165                                         child.className = child.className + "Selected";
1166                                         cb.checked = true;
1167                                 }
1168                         } else if (mode == "unread") {
1169                                 if (child.className.match("Unread") && !child.className.match("Selected")) {
1170                                         child.className = child.className + "Selected";
1171                                         cb.checked = true;
1172                                 }
1173                         } else {
1174                                 child.className = child.className.replace("Selected", "");
1175                                 cb.checked = false;
1176                         }
1177                 }
1178         }
1179 }
1180
1181 function catchupPage() {
1182
1183         var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
1184
1185         var str = __("Mark all visible articles in %s as read?");
1186
1187         str = str.replace("%s", fn);
1188
1189         if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1190                 return;
1191         }
1192
1193         if (document.getElementById("headlinesList")) {
1194                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, 'Unread', true);
1195                 selectionToggleUnread(false, false, 'viewCurrentFeed()', true);
1196                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
1197         } else {
1198                 cdmSelectArticles('all');
1199                 selectionToggleUnread(true, false, 'viewCurrentFeed()', true)
1200                 cdmSelectArticles('none');
1201         }
1202 }
1203
1204 function catchupSelection() {
1205
1206         try {
1207
1208                 var rows;
1209
1210                 if (document.getElementById("headlinesList")) {
1211                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1212                 } else {
1213                         rows = cdmGetSelectedArticles();
1214                 }
1215
1216                 if (rows.length == 0) {
1217                         alert(__("No articles are selected."));
1218                         return;
1219                 }
1220
1221
1222                 var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
1223
1224                 var str = __("Mark %d selected articles in %s as read?");
1225
1226                 str = str.replace("%d", rows.length);
1227                 str = str.replace("%s", fn);
1228
1229                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1230                         return;
1231                 }
1232
1233                 if (document.getElementById("headlinesList")) {
1234                         selectionToggleUnread(false, false, 'viewCurrentFeed()', true);
1235         //              selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
1236                 } else {
1237                         selectionToggleUnread(true, false, 'viewCurrentFeed()', true)
1238         //              cdmSelectArticles('none');
1239                 }
1240
1241         } catch (e) {
1242                 exception_error("catchupSelection", e);
1243         }
1244 }
1245
1246 function editArticleTags(id, feed_id, cdm_enabled) {
1247         displayDlg('editArticleTags', id);
1248 }
1249
1250
1251 function tag_saved_callback(transport) {
1252         try {
1253                 debug("in tag_saved_callback");
1254
1255                 closeInfoBox();
1256                 notify("");
1257
1258                 if (tagsAreDisplayed()) {
1259                         _reload_feedlist_after_view = true;
1260                 }
1261
1262
1263                 if (transport.responseXML) {
1264                         var tags_str = transport.responseXML.getElementsByTagName("tags-str")[0];
1265
1266                         if (tags_str) {
1267                                 var id = tags_str.getAttribute("id");
1268
1269                                 if (id) {
1270                                         var tags = document.getElementById("ATSTR-" + id);
1271                                         if (tags) {
1272                                                 tags.innerHTML = tags_str.firstChild.nodeValue;
1273                                         }
1274                                 }
1275                         }
1276                 }
1277
1278         } catch (e) {
1279                 exception_error("tag_saved_callback", e);
1280         }
1281 }
1282
1283 function editTagsSave() {
1284
1285         notify_progress("Saving article tags...");
1286
1287         var form = document.forms["tag_edit_form"];
1288
1289         var query = Form.serialize("tag_edit_form");
1290
1291         query = "backend.php?op=rpc&subop=setArticleTags&" + query;
1292
1293         debug(query);
1294
1295         new Ajax.Request(query, {
1296                 onComplete: function(transport) {
1297                                 tag_saved_callback(transport);
1298                         } });
1299
1300 }
1301
1302 function editTagsInsert() {
1303         try {
1304
1305                 var form = document.forms["tag_edit_form"];
1306
1307                 var found_tags = form.found_tags;
1308                 var tags_str = form.tags_str;
1309
1310                 var tag = found_tags[found_tags.selectedIndex].value;
1311
1312                 if (tags_str.value.length > 0 &&
1313                                 tags_str.value.lastIndexOf(", ") != tags_str.value.length - 2) {
1314
1315                         tags_str.value = tags_str.value + ", ";
1316                 }
1317
1318                 tags_str.value = tags_str.value + tag + ", ";
1319
1320                 found_tags.selectedIndex = 0;
1321
1322         } catch (e) {
1323                 exception_error("editTagsInsert", e);
1324         }
1325 }
1326
1327 function cdmScrollViewport(where) {
1328         debug("cdmScrollViewport: " + where);
1329
1330         var ctr = document.getElementById("headlinesInnerContainer");
1331
1332         if (!ctr) return;
1333
1334         if (where == "bottom") {
1335                 ctr.scrollTop = ctr.scrollHeight;
1336         } else {
1337                 ctr.scrollTop = where;
1338         }
1339 }
1340
1341 function cdmArticleIsBelowViewport(id) {
1342         try {
1343                 var ctr = document.getElementById("headlinesInnerContainer");
1344                 var e = document.getElementById("RROW-" + id);
1345
1346                 if (!e || !ctr) return;
1347
1348                 // article starts below viewport
1349
1350                 if (ctr.scrollTop < e.offsetTop) {
1351                         return true;
1352                 } else {
1353                         return false;
1354                 }
1355
1356         } catch (e) {
1357                 exception_error("cdmArticleIsVisible", e);
1358         }
1359 }
1360
1361 function cdmArticleIsAboveViewport(id) {
1362         try {
1363                 var ctr = document.getElementById("headlinesInnerContainer");
1364                 var e = document.getElementById("RROW-" + id);
1365
1366                 if (!e || !ctr) return;
1367
1368                 // article starts above viewport
1369
1370                 if (ctr.scrollTop > e.offsetTop + e.offsetHeight) {
1371                         return true;
1372                 } else {
1373                         return false;
1374                 }
1375
1376         } catch (e) {
1377                 exception_error("cdmArticleIsVisible", e);
1378         }
1379 }
1380
1381 function cdmScrollToArticleId(id) {
1382         try {
1383                 var ctr = document.getElementById("headlinesInnerContainer");
1384                 var e = document.getElementById("RROW-" + id);
1385
1386                 if (!e || !ctr) return;
1387
1388                 ctr.scrollTop = e.offsetTop;
1389
1390         } catch (e) {
1391                 exception_error("cdmScrollToArticleId", e);
1392         }
1393 }
1394
1395 function cdmArticleIsActuallyVisible(id) {
1396         try {
1397                 var ctr = document.getElementById("headlinesInnerContainer");
1398                 var e = document.getElementById("RROW-" + id);
1399
1400                 if (!e || !ctr) return;
1401
1402                 // article fits in viewport OR article is longer than viewport and
1403                 // its bottom is visible
1404
1405                 if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <=
1406                                 ctr.scrollTop + ctr.offsetHeight) {
1407
1408                         return true;
1409
1410                 } else if (e.offsetHeight > ctr.offsetHeight &&
1411                                 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1412                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
1413
1414                         return true;
1415
1416                 }
1417
1418                 return false;
1419
1420         } catch (e) {
1421                 exception_error("cdmArticleIsVisible", e);
1422         }
1423 }
1424
1425 function cdmWatchdog() {
1426
1427         try {
1428
1429                 var ctr = document.getElementById("headlinesInnerContainer");
1430
1431                 if (!ctr) return;
1432
1433                 var ids = new Array();
1434
1435                 var e = ctr.firstChild;
1436
1437                 while (e) {
1438                         if (e.className && e.className == "cdmArticleUnread" && e.id &&
1439                                         e.id.match("RROW-")) {
1440
1441                                 // article fits in viewport OR article is longer than viewport and
1442                                 // its bottom is visible
1443
1444                                 if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <=
1445                                                 ctr.scrollTop + ctr.offsetHeight) {
1446
1447 //                                      debug(e.id + " is visible " + e.offsetTop + "." +
1448 //                                              (e.offsetTop + e.offsetHeight) + " vs " + ctr.scrollTop + "." +
1449 //                                              (ctr.scrollTop + ctr.offsetHeight));
1450
1451                                         ids.push(e.id.replace("RROW-", ""));
1452
1453                                 } else if (e.offsetHeight > ctr.offsetHeight &&
1454                                                 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1455                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
1456
1457                                         ids.push(e.id.replace("RROW-", ""));
1458
1459                                 }
1460
1461                                 // method 2: article bottom is visible and is in upper 1/2 of the viewport
1462
1463 /*                              if (e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1464                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight/2) {
1465
1466                                         ids.push(e.id.replace("RROW-", ""));
1467
1468                                 } */
1469
1470                         }
1471
1472                         e = e.nextSibling;
1473                 }
1474
1475                 debug("cdmWatchdog, ids= " + ids.toString());
1476
1477                 if (ids.length > 0) {
1478
1479                         for (var i = 0; i < ids.length; i++) {
1480                                 var e = document.getElementById("RROW-" + ids[i]);
1481                                 if (e) {
1482                                         e.className = e.className.replace("Unread", "");
1483                                 }
1484                         }
1485
1486                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
1487                                 param_escape(ids.toString()) + "&cmode=0";
1488
1489                         new Ajax.Request(query, {
1490                                 onComplete: function(transport) {
1491                                         all_counters_callback2(transport);
1492                                 } });
1493
1494                 }
1495
1496                 _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 4000);
1497
1498         } catch (e) {
1499                 exception_error("cdmWatchdog", e);
1500         }
1501
1502 }
1503
1504
1505 function cache_inject(id, article, param) {
1506         try {
1507                 if (!cache_check_param(id, param)) {
1508                         debug("cache_article: miss: " + id + " [p=" + param + "]");
1509
1510
1511                         if (db) {
1512
1513                            var date = new Date();
1514                       var ts = Math.round(date.getTime() / 1000);
1515
1516                                 db.execute("INSERT INTO cache (id, article, param, added) VALUES (?, ?, ?, ?)",
1517                                         [id, article, param, ts]);
1518                         } else {
1519
1520                                 var cache_obj = new Array();
1521
1522                                 cache_obj["id"] = id;
1523                                 cache_obj["data"] = article;
1524                                 cache_obj["param"] = param;
1525
1526                                 article_cache.push(cache_obj);
1527                         }
1528
1529                 } else {
1530                         debug("cache_article: hit: " + id + " [p=" + param + "]");
1531                 }
1532         } catch (e) {
1533                 exception_error("cache_inject", e);
1534         }
1535 }
1536
1537 function cache_find(id) {
1538
1539         if (db) {
1540                 var rs = db.execute("SELECT article FROM cache WHERE id = ?", [id]);
1541
1542                 if (rs.isValidRow()) {
1543                         return rs.field(0);
1544                 }
1545
1546         } else {
1547                 for (var i = 0; i < article_cache.length; i++) {
1548                         if (article_cache[i]["id"] == id) {
1549                                 return article_cache[i]["data"];
1550                         }
1551                 }
1552         }
1553         return false;
1554 }
1555
1556 function cache_find_param(id, param) {
1557
1558         if (db) {
1559                 var rs = db.execute("SELECT article FROM cache WHERE id = ? AND param = ?",
1560                         [id, param]);
1561
1562                 if (rs.isValidRow()) {
1563                         return rs.field(0);
1564                 }
1565
1566         } else {
1567                 for (var i = 0; i < article_cache.length; i++) {
1568                         if (article_cache[i]["id"] == id && article_cache[i]["param"] == param) {
1569                                 return article_cache[i]["data"];
1570                         }
1571                 }
1572         }
1573         return false;
1574 }
1575
1576 function cache_check(id) {
1577
1578         if (db) {
1579                 var rs = db.execute("SELECT COUNT(*) AS c FROM cache WHERE id = ?",
1580                         [id]);
1581
1582                 if (rs.isValidRow()) {
1583                         return rs.field(0) != "0";
1584                 }
1585
1586         } else {
1587                 for (var i = 0; i < article_cache.length; i++) {
1588                         if (article_cache[i]["id"] == id) {
1589                                 return true;
1590                         }
1591                 }
1592         }
1593         return false;
1594 }
1595
1596 function cache_check_param(id, param) {
1597
1598         if (db) {
1599                 var rs = db.execute("SELECT COUNT(*) AS c FROM cache WHERE id = ? AND param = ?",
1600                         [id, param]);
1601
1602                 if (rs.isValidRow()) {
1603                         return rs.field(0) != "0";
1604                 }
1605
1606         } else {
1607                 for (var i = 0; i < article_cache.length; i++) {
1608                         if (article_cache[i]["id"] == id && article_cache[i]["param"] == param) {
1609                                 return true;
1610                         }
1611                 }
1612         }
1613         return false;
1614 }
1615
1616 function cache_expire() {
1617         if (db) {
1618                 var date = new Date();
1619                 var ts = Math.round(date.getTime() / 1000);
1620
1621                 db.execute("DELETE FROM cache WHERE added < ? - 1800 AND id LIKE 'FEEDLIST'", [ts]);
1622                 db.execute("DELETE FROM cache WHERE added < ? - 600 AND (id LIKE 'F:%' OR id LIKE 'C:%')", [ts]);
1623                 db.execute("DELETE FROM cache WHERE added < ? - 86400", [ts]);
1624
1625
1626         } else {
1627                 while (article_cache.length > 25) {
1628                         article_cache.shift();
1629                 }
1630         }
1631 }
1632
1633 function cache_empty() {
1634         article_cache = new Array();
1635 }
1636
1637 function cache_invalidate(id) {
1638         try {
1639
1640                 if (db) {
1641                         rs = db.execute("DELETE FROM cache WHERE id = ?", [id]);
1642                         return rs.rowsAffected != 0;
1643                 } else {
1644
1645                         var i = 0
1646
1647                         while (i < article_cache.length) {
1648                                 if (article_cache[i]["id"] == id) {
1649                                         debug("cache_invalidate: removed id " + id);
1650                                         article_cache.splice(i, 1);
1651                                         return true;
1652                                 }
1653                                 i++;
1654                         }
1655                 }
1656
1657                 debug("cache_invalidate: id not found: " + id);
1658                 return false;
1659         } catch (e) {
1660                 exception_error("cache_invalidate", e);
1661         }
1662 }
1663
1664 function getActiveArticleId() {
1665         return active_post_id;
1666 }
1667
1668 function cdmClicked(id) {
1669         try {
1670                 var elem = document.getElementById("RROW-" + id);
1671
1672                 if (elem) {
1673                         var id = elem.id.replace("RROW-", "");
1674                         active_post_id = id;
1675
1676                         cdmSelectArticles("none");
1677                         toggleUnread(id, 0, true);
1678                         toggleSelected(id);
1679
1680                 }
1681         } catch (e) {
1682                 exception_error("cdmClicked", e);
1683         }
1684 }
1685
1686 function preload_article_callback(transport) {
1687         try {
1688                 if (transport.responseXML) {
1689                         var articles = transport.responseXML.getElementsByTagName("article");
1690
1691                         for (var i = 0; i < articles.length; i++) {
1692                                 var id = articles[i].getAttribute("id");
1693                                 if (!cache_check(id)) {
1694                                         cache_inject(id, articles[i].firstChild.nodeValue);
1695                                         debug("preloaded article: " + id);
1696                                 }
1697                         }
1698                 }
1699         } catch (e) {
1700                 exception_error("preload_article_callback", e);
1701         }
1702 }
1703
1704 function preloadArticleUnderPointer(id) {
1705         try {
1706                 if (getInitParam("bw_limit") == "1") return;
1707
1708                 if (post_under_pointer == id && !cache_check(id)) {
1709
1710                         debug("trying to preload article " + id);
1711
1712                         var neighbor_ids = getRelativePostIds(id, 1);
1713
1714                         /* only request uncached articles */
1715
1716                         var cids_to_request = Array();
1717
1718                         for (var i = 0; i < neighbor_ids.length; i++) {
1719                                 if (!cache_check(neighbor_ids[i])) {
1720                                         cids_to_request.push(neighbor_ids[i]);
1721                                 }
1722                         }
1723                         debug("additional ids: " + cids_to_request.toString());
1724
1725                         cids_to_request.push(id);
1726
1727                         var query = "backend.php?op=rpc&subop=getArticles&ids=" +
1728                                 cids_to_request.toString();
1729                         new Ajax.Request(query, {
1730                                 onComplete: function(transport) {
1731                                         preload_article_callback(transport);
1732                         } });
1733                 }
1734         } catch (e) {
1735                 exception_error("preloadArticleUnderPointer", e);
1736         }
1737 }
1738
1739 function postMouseIn(id) {
1740         try {
1741                 if (post_under_pointer != id) {
1742                         post_under_pointer = id;
1743                         if (!isCdmMode()) {
1744                                 window.setTimeout("preloadArticleUnderPointer(" + id + ")", 250);
1745                         }
1746                 }
1747
1748         } catch (e) {
1749                 exception_error("postMouseIn", e);
1750         }
1751 }
1752
1753 function postMouseOut(id) {
1754         try {
1755                 post_under_pointer = false;
1756         } catch (e) {
1757                 exception_error("postMouseOut", e);
1758         }
1759 }
1760
1761 function headlines_scroll_handler() {
1762         try {
1763
1764                 var e = document.getElementById("headlinesInnerContainer");
1765
1766                 // don't do infinite scrolling when Limit == All
1767
1768                 var toolbar_form = document.forms["main_toolbar_form"];
1769
1770                 var limit = toolbar_form.limit[toolbar_form.limit.selectedIndex];
1771                 if (limit.value != 0) {
1772
1773                         debug((e.scrollTop + e.offsetHeight) + " vs " + e.scrollHeight + " dis? " +
1774                                 _infscroll_disable);
1775
1776                         if (e.scrollTop + e.offsetHeight > e.scrollHeight - 100) {
1777                                 if (!_infscroll_disable) {
1778                                         debug("more cowbell!");
1779                                         viewNextFeedPage();
1780                                 }
1781                         }
1782                 }
1783
1784         } catch (e) {
1785                 exception_error("headlines_scroll_handler", e);
1786         }
1787 }
1788
1789 function catchupRelativeToArticle(below) {
1790
1791         try {
1792
1793
1794                 if (!getActiveArticleId()) {
1795                         alert(__("No article is selected."));
1796                         return;
1797                 }
1798
1799                 var visible_ids;
1800
1801                 if (document.getElementById("headlinesList")) {
1802                         visible_ids = getVisibleHeadlineIds();
1803                 } else {
1804                         visible_ids = cdmGetVisibleArticles();
1805                 }
1806
1807                 var ids_to_mark = new Array();
1808
1809                 if (!below) {
1810                         for (var i = 0; i < visible_ids.length; i++) {
1811                                 if (visible_ids[i] != getActiveArticleId()) {
1812                                         var e = document.getElementById("RROW-" + visible_ids[i]);
1813
1814                                         if (e && e.className.match("Unread")) {
1815                                                 ids_to_mark.push(visible_ids[i]);
1816                                         }
1817                                 } else {
1818                                         break;
1819                                 }
1820                         }
1821                 } else {
1822                         for (var i = visible_ids.length-1; i >= 0; i--) {
1823                                 if (visible_ids[i] != getActiveArticleId()) {
1824                                         var e = document.getElementById("RROW-" + visible_ids[i]);
1825
1826                                         if (e && e.className.match("Unread")) {
1827                                                 ids_to_mark.push(visible_ids[i]);
1828                                         }
1829                                 } else {
1830                                         break;
1831                                 }
1832                         }
1833                 }
1834
1835                 if (ids_to_mark.length == 0) {
1836                         alert(__("No articles found to mark"));
1837                 } else {
1838                         var msg = __("Mark %d article(s) as read?").replace("%d", ids_to_mark.length);
1839
1840                         if (confirm(msg)) {
1841
1842                                 for (var i = 0; i < ids_to_mark.length; i++) {
1843                                         var e = document.getElementById("RROW-" + ids_to_mark[i]);
1844                                         e.className = e.className.replace("Unread", "");
1845                                 }
1846
1847                                 var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
1848                                         param_escape(ids_to_mark.toString()) + "&cmode=0";
1849
1850                                 new Ajax.Request(query, {
1851                                         onComplete: function(transport) {
1852                                                 catchup_callback2(transport);
1853                                         } });
1854
1855                         }
1856                 }
1857
1858         } catch (e) {
1859                 exception_error("catchupRelativeToArticle", e);
1860         }
1861 }
1862
1863 function cdmExpandArticle(a_id) {
1864         try {
1865                 var id = 'CICD-' + a_id;
1866
1867                 try {
1868                         Element.hide("CEXC-" + a_id);
1869                 } catch (e) { }
1870
1871                 Effect.Appear(id, {duration : 0.5,
1872                         beforeStart: function(effect) {
1873                                 var h_id = 'CICH-' + a_id;
1874                                 var h_elem = document.getElementById(h_id);
1875                                 if (h_elem) { h_elem.style.display = "none"; }
1876
1877                                 toggleUnread(a_id, 0);
1878                         }});
1879
1880
1881         } catch (e) {
1882                 exception_error("appearBlockElementF", e);
1883         }
1884
1885 }
1886
1887 function fixHeadlinesOrder(ids) {
1888         try {
1889                 for (var i = 0; i < ids.length; i++) {
1890                         var e = document.getElementById("RROW-" + ids[i]);
1891
1892                         if (e) {
1893                                 if (i % 2 == 0) {
1894                                         e.className = e.className.replace("even", "odd");
1895                                 } else {
1896                                         e.className = e.className.replace("odd", "even");
1897                                 }
1898                         }
1899                 }
1900         } catch (e) {
1901                 exception_error("fixHeadlinesOrder", e);
1902         }
1903 }
1904
1905 function hideReadHeadlines() {
1906         try {
1907
1908                 var ids = false;
1909                 var vis_ids = new Array();
1910
1911                 if (document.getElementById("headlinesList")) {
1912                         ids = getVisibleHeadlineIds();
1913                 } else {
1914                         ids = cdmGetVisibleArticles();
1915                 }
1916
1917                 var read_headlines_visible = true;
1918
1919                 for (var i = 0; i < ids.length; i++) {
1920                         var row = document.getElementById("RROW-" + ids[i]);
1921
1922                         if (row && row.className) {
1923                                 if (read_headlines_visible) {
1924                                         if (row.className.match("Unread") || row.className.match("Selected")) {
1925                                                 Element.show(row);
1926                                                 vis_ids.push(ids[i]);
1927                                         } else {
1928                                                 //Effect.Fade(row, {duration : 0.3});
1929                                                 Element.hide(row);
1930                                         }
1931                                 } else {
1932                                         Element.show(row);
1933                                         vis_ids.push(ids[i]);
1934                                 }
1935                         }
1936                 }
1937
1938                 fixHeadlinesOrder(vis_ids);
1939
1940                 read_headlines_visible = !read_headlines_visible;
1941
1942         } catch (e) {
1943                 exception_error("hideReadHeadlines", e);
1944         }
1945 }
1946
1947 function invertHeadlineSelection() {
1948         try {
1949                 var rows = new Array();
1950                 var r = false;
1951
1952                 if (!isCdmMode()) {
1953                         r = document.getElementsByTagName("TR");
1954                 } else {
1955                         r = document.getElementsByTagName("DIV");
1956                 }
1957
1958                 for (var i = 0; i < r.length; i++) {
1959                         if (r[i].id && r[i].id.match("RROW-")) {
1960                                 rows.push(r[i]);
1961                         }
1962                 }
1963
1964                 for (var i = 0; i < rows.length; i++) {
1965                         var nc = rows[i].className;
1966                         var id = rows[i].id.replace("RROW-", "");
1967                         var cb = document.getElementById("RCHK-" + id);
1968
1969                         if (!rows[i].className.match("Selected")) {
1970                                 nc = nc + "Selected";
1971                                 cb.checked = true;
1972                         } else {
1973                                 nc = nc.replace("Selected", "");
1974                                 cb.checked = false;
1975                         }
1976
1977                         rows[i].className = nc;
1978
1979                 }
1980
1981         } catch (e) {
1982                 exception_error("invertHeadlineSelection", e);
1983         }
1984 }
1985
1986 function getArticleUnderPointer() {
1987         return post_under_pointer;
1988 }
1989
1990 function zoomToArticle(id) {
1991         try {
1992                 var w = window.open("backend.php?op=view&mode=zoom&id=" + param_escape(id),
1993                         "ttrss_zoom_" + id,
1994                         "status=0,toolbar=0,location=0,width=450,height=300,scrollbars=1,menubar=0");
1995
1996         } catch (e) {
1997                 exception_error("zoomToArticle", e);
1998         }
1999 }
2000
2001 function showOriginalArticleInline(id) {
2002         try {
2003
2004                 var query = "backend.php?op=rpc&subop=getArticleLink&id=" + id;
2005
2006                 notify_progress("Loading, please wait...", true);
2007
2008                 new Ajax.Request(query, {
2009                         onComplete: function(transport) {
2010
2011                                 if (transport.responseXML) {
2012
2013                                         var link = transport.responseXML.getElementsByTagName("link")[0];
2014                                         var id = transport.responseXML.getElementsByTagName("id")[0];
2015
2016                                         notify("");
2017
2018                                         if (link && id) {
2019                                                 link = link.firstChild.nodeValue;
2020
2021                                                 var ci = document.getElementById("content-insert");
2022
2023                                                 var tmp = "<iframe id=\"inline_orig_article\" width=\""+ci.offsetWidth+"\" height=\""+ci.offsetHeight+"\" style=\"border-width : 0px;\" src=\""+link+"\"></iframe>";
2024
2025                                                 render_article(tmp);
2026
2027                                         }
2028                                 }
2029                         } });
2030
2031         } catch (e) {
2032                 exception_error("showOriginalArticleInline", e);
2033         }
2034 }
2035
2036
2037 function scrollArticle(offset) {
2038         try {
2039                 if (!isCdmMode()) {
2040                         var ci = document.getElementById("content-insert");
2041                         if (ci) {
2042                                 ci.scrollTop += offset;
2043                         }
2044                 } else {
2045                         var hi = document.getElementById("headlinesInnerContainer");
2046                         if (hi) {
2047                                 hi.scrollTop += offset;
2048                         }
2049
2050                 }
2051         } catch (e) {
2052                 exception_error("scrollArticle", e);
2053         }
2054 }
2055
2056 function show_labels_in_headlines(transport) {
2057         try {
2058                 if (transport.responseXML) {
2059                         var info = transport.responseXML.getElementsByTagName("info-for-headlines")[0];
2060
2061                         var elems = info.getElementsByTagName("entry");
2062
2063                         for (var l = 0; l < elems.length; l++) {
2064                                 var e_id = elems[l].getAttribute("id");
2065
2066                                 if (e_id) {
2067
2068                                         var ctr = document.getElementById("HLLCTR-" + e_id);
2069
2070                                         if (ctr) {
2071                                                 ctr.innerHTML = elems[l].firstChild.nodeValue;
2072                                         }
2073                                 }
2074
2075                         }
2076
2077                 }
2078         } catch (e) {
2079                 exception_error("show_labels_in_headlines", e);
2080
2081         }
2082 }
2083
2084 function toggleHeadlineActions() {
2085         try {
2086                 var e = document.getElementById("headlineActionsBody");
2087                 var p = document.getElementById("headlineActionsDrop");
2088
2089                 if (!Element.visible(e)) {
2090                         Element.show(e);
2091                 } else {
2092                         Element.hide(e);
2093                 }
2094
2095                 e.scrollTop = 0;
2096                 e.style.left = (p.offsetLeft + 1) + "px";
2097 //              e.style.top = (p.offsetTop + p.offsetHeight - 1) + "px";
2098
2099         } catch (e) {
2100                 exception_error("toggleHeadlineActions", e);
2101         }
2102 }