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