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