viewfeed.js

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