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