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 selectionToggleUnread(cdm_mode, set_state, callback_func, no_error) {
 854         try {
 855                 var rows;
 856
 857                 if (cdm_mode) {
 858                         rows = cdmGetSelectedArticles();
 859                 } else {
 860                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 861                 }
 862
 863                 if (rows.length == 0 && !no_error) {
 864                         alert(__("No articles are selected."));
 865                         return;
 866                 }
 867
 868                 for (i = 0; i < rows.length; i++) {
 869                         var row = document.getElementById("RROW-" + rows[i]);
 870                         if (row) {
 871                                 var nc = row.className;
 872                                 nc = nc.replace("Unread", "");
 873                                 nc = nc.replace("Selected", "");
 874
 875                                 if (set_state == undefined) {
 876                                         if (row.className.match("Unread")) {
 877                                                 row.className = nc + "Selected";
 878                                         } else {
 879                                                 row.className = nc + "UnreadSelected";
 880                                         }
 881                                 }
 882
 883                                 if (set_state == false) {
 884                                         row.className = nc + "Selected";
 885                                 }
 886
 887                                 if (set_state == true) {
 888                                         row.className = nc + "UnreadSelected";
 889                                 }
 890                         }
 891                 }
 892
 893                 if (rows.length > 0) {
 894
 895                         var cmode = "";
 896
 897                         if (set_state == undefined) {
 898                                 cmode = "2";
 899                         } else if (set_state == true) {
 900                                 cmode = "1";
 901                         } else if (set_state == false) {
 902                                 cmode = "0";
 903                         }
 904
 905                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
 906                                 param_escape(rows.toString()) + "&cmode=" + cmode;
 907
 908                         notify_progress("Loading, please wait...");
 909
 910                         new Ajax.Request(query, {
 911                                 onComplete: function(transport) {
 912                                         catchup_callback2(transport, callback_func);
 913                                 } });
 914
 915                 }
 916
 917         } catch (e) {
 918                 exception_error("selectionToggleUnread", e);
 919         }
 920 }
 921
 922 function selectionToggleMarked(cdm_mode) {
 923         try {
 924
 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) {
 934                         alert(__("No articles are selected."));
 935                         return;
 936                 }
 937
 938                 for (i = 0; i < rows.length; i++) {
 939                         toggleMark(rows[i], true, true);
 940                 }
 941
 942                 if (rows.length > 0) {
 943
 944                         var query = "backend.php?op=rpc&subop=markSelected&ids=" +
 945                                 param_escape(rows.toString()) + "&cmode=2";
 946
 947                         query = query + "&afid=" + getActiveFeedId();
 948
 949 /*                      if (tagsAreDisplayed()) {
 950                                 query = query + "&omode=tl";
 951                         } else {
 952                                 query = query + "&omode=flc";
 953                         } */
 954
 955                         query = query + "&omode=lc";
 956
 957                         new Ajax.Request(query, {
 958                                 onComplete: function(transport) {
 959                                         all_counters_callback2(transport);
 960                                 } });
 961
 962                 }
 963
 964         } catch (e) {
 965                 exception_error("selectionToggleMarked", e);
 966         }
 967 }
 968
 969 function selectionTogglePublished(cdm_mode) {
 970         try {
 971
 972                 var rows;
 973
 974                 if (cdm_mode) {
 975                         rows = cdmGetSelectedArticles();
 976                 } else {
 977                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 978                 }
 979
 980                 if (rows.length == 0) {
 981                         alert(__("No articles are selected."));
 982                         return;
 983                 }
 984
 985                 for (i = 0; i < rows.length; i++) {
 986                         togglePub(rows[i], true, true);
 987                 }
 988
 989                 if (rows.length > 0) {
 990
 991                         var query = "backend.php?op=rpc&subop=publishSelected&ids=" +
 992                                 param_escape(rows.toString()) + "&cmode=2";
 993
 994                         query = query + "&afid=" + getActiveFeedId();
 995
 996 /*                      if (tagsAreDisplayed()) {
 997                                 query = query + "&omode=tl";
 998                         } else {
 999                                 query = query + "&omode=flc";
1000                         } */
1001
1002                         query = query + "&omode=lc";
1003
1004                         new Ajax.Request(query, {
1005                                 onComplete: function(transport) {
1006                                         all_counters_callback2(transport);
1007                                 } });
1008
1009                 }
1010
1011         } catch (e) {
1012                 exception_error("selectionToggleMarked", e);
1013         }
1014 }
1015
1016 function cdmGetSelectedArticles() {
1017         var sel_articles = new Array();
1018         var container = document.getElementById("headlinesInnerContainer");
1019
1020         for (i = 0; i < container.childNodes.length; i++) {
1021                 var child = container.childNodes[i];
1022
1023                 if (child.id && child.id.match("RROW-") && child.className.match("Selected")) {
1024                         var c_id = child.id.replace("RROW-", "");
1025                         sel_articles.push(c_id);
1026                 }
1027         }
1028
1029         return sel_articles;
1030 }
1031
1032 function cdmGetVisibleArticles() {
1033         var sel_articles = new Array();
1034         var container = document.getElementById("headlinesInnerContainer");
1035
1036         if (!container) return sel_articles;
1037
1038         for (i = 0; i < container.childNodes.length; i++) {
1039                 var child = container.childNodes[i];
1040
1041                 if (child.id && child.id.match("RROW-")) {
1042                         var c_id = child.id.replace("RROW-", "");
1043                         sel_articles.push(c_id);
1044                 }
1045         }
1046
1047         return sel_articles;
1048 }
1049
1050 function cdmGetUnreadArticles() {
1051         var sel_articles = new Array();
1052         var container = document.getElementById("headlinesInnerContainer");
1053
1054         for (i = 0; i < container.childNodes.length; i++) {
1055                 var child = container.childNodes[i];
1056
1057                 if (child.id && child.id.match("RROW-") && child.className.match("Unread")) {
1058                         var c_id = child.id.replace("RROW-", "");
1059                         sel_articles.push(c_id);
1060                 }
1061         }
1062
1063         return sel_articles;
1064 }
1065
1066
1067 // mode = all,none,unread
1068 function cdmSelectArticles(mode) {
1069         var container = document.getElementById("headlinesInnerContainer");
1070
1071         for (i = 0; i < container.childNodes.length; i++) {
1072                 var child = container.childNodes[i];
1073
1074                 if (child.id && child.id.match("RROW-")) {
1075                         var aid = child.id.replace("RROW-", "");
1076
1077                         var cb = document.getElementById("RCHK-" + aid);
1078
1079                         if (mode == "all") {
1080                                 if (!child.className.match("Selected")) {
1081                                         child.className = child.className + "Selected";
1082                                         cb.checked = true;
1083                                 }
1084                         } else if (mode == "unread") {
1085                                 if (child.className.match("Unread") && !child.className.match("Selected")) {
1086                                         child.className = child.className + "Selected";
1087                                         cb.checked = true;
1088                                 }
1089                         } else {
1090                                 child.className = child.className.replace("Selected", "");
1091                                 cb.checked = false;
1092                         }
1093                 }
1094         }
1095 }
1096
1097 function catchupPage() {
1098
1099         var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
1100
1101         var str = __("Mark all visible articles in %s as read?");
1102
1103         str = str.replace("%s", fn);
1104
1105         if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1106                 return;
1107         }
1108
1109         if (document.getElementById("headlinesList")) {
1110                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, 'Unread', true);
1111                 selectionToggleUnread(false, false, 'viewCurrentFeed()', true);
1112                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
1113         } else {
1114                 cdmSelectArticles('all');
1115                 selectionToggleUnread(true, false, 'viewCurrentFeed()', true)
1116                 cdmSelectArticles('none');
1117         }
1118 }
1119
1120 function catchupSelection() {
1121
1122         try {
1123
1124                 var rows;
1125
1126                 if (document.getElementById("headlinesList")) {
1127                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1128                 } else {
1129                         rows = cdmGetSelectedArticles();
1130                 }
1131
1132                 if (rows.length == 0) {
1133                         alert(__("No articles are selected."));
1134                         return;
1135                 }
1136
1137
1138                 var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
1139
1140                 var str = __("Mark %d selected articles in %s as read?");
1141
1142                 str = str.replace("%d", rows.length);
1143                 str = str.replace("%s", fn);
1144
1145                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1146                         return;
1147                 }
1148
1149                 if (document.getElementById("headlinesList")) {
1150                         selectionToggleUnread(false, false, 'viewCurrentFeed()', true);
1151         //              selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
1152                 } else {
1153                         selectionToggleUnread(true, false, 'viewCurrentFeed()', true)
1154         //              cdmSelectArticles('none');
1155                 }
1156
1157         } catch (e) {
1158                 exception_error("catchupSelection", e);
1159         }
1160 }
1161
1162
1163 function labelFromSearch(search, search_mode, match_on, feed_id, is_cat) {
1164
1165         if (!xmlhttp_ready(xmlhttp_rpc)) {
1166                 printLockingError();
1167         }
1168
1169         var title = prompt(__("Please enter label title:"), "");
1170
1171         if (title) {
1172
1173                 var query = "backend.php?op=labelFromSearch&search=" + param_escape(search) +
1174                         "&smode=" + param_escape(search_mode) + "&match=" + param_escape(match_on) +
1175                         "&feed=" + param_escape(feed_id) + "&is_cat=" + param_escape(is_cat) +
1176                         "&title=" + param_escape(title);
1177
1178                 debug("LFS: " + query);
1179
1180                 new Ajax.Request(query, {
1181                         onComplete: function(transport) {
1182                                         dlg_frefresh_callback(transport);
1183                                 } });
1184         }
1185 }
1186
1187 function editArticleTags(id, feed_id, cdm_enabled) {
1188         _tag_active_post_id = id;
1189         _tag_active_feed_id = feed_id;
1190         _tag_active_cdm = cdm_enabled;
1191
1192         cache_invalidate(id);
1193
1194         try {
1195                 _tag_cdm_scroll = document.getElementById("headlinesInnerContainer").scrollTop;
1196         } catch (e) { }
1197         displayDlg('editArticleTags', id);
1198 }
1199
1200
1201 function tag_saved_callback(transport) {
1202         try {
1203                 debug("in tag_saved_callback");
1204
1205                 closeInfoBox();
1206                 notify("");
1207
1208                 if (tagsAreDisplayed()) {
1209                         _reload_feedlist_after_view = true;
1210                 }
1211
1212                 if (!_tag_active_cdm) {
1213                         if (active_post_id == _tag_active_post_id) {
1214                                 debug("reloading current article");
1215                                 view(_tag_active_post_id, _tag_active_feed_id);
1216                         }
1217                 } else {
1218                         debug("reloading current feed");
1219                         viewCurrentFeed();
1220                 }
1221
1222         } catch (e) {
1223                 exception_error("catchup_callback", e);
1224         }
1225 }
1226
1227 function editTagsSave() {
1228
1229         notify_progress("Saving article tags...");
1230
1231         var form = document.forms["tag_edit_form"];
1232
1233         var query = Form.serialize("tag_edit_form");
1234
1235         query = "backend.php?op=rpc&subop=setArticleTags&" + query;
1236
1237         debug(query);
1238
1239         new Ajax.Request(query, {
1240                 onComplete: function(transport) {
1241                                 tag_saved_callback(transport);
1242                         } });
1243
1244 }
1245
1246 function editTagsInsert() {
1247         try {
1248
1249                 var form = document.forms["tag_edit_form"];
1250
1251                 var found_tags = form.found_tags;
1252                 var tags_str = form.tags_str;
1253
1254                 var tag = found_tags[found_tags.selectedIndex].value;
1255
1256                 if (tags_str.value.length > 0 &&
1257                                 tags_str.value.lastIndexOf(", ") != tags_str.value.length - 2) {
1258
1259                         tags_str.value = tags_str.value + ", ";
1260                 }
1261
1262                 tags_str.value = tags_str.value + tag + ", ";
1263
1264                 found_tags.selectedIndex = 0;
1265
1266         } catch (e) {
1267                 exception_error("editTagsInsert", e);
1268         }
1269 }
1270
1271 function cdmScrollViewport(where) {
1272         debug("cdmScrollViewport: " + where);
1273
1274         var ctr = document.getElementById("headlinesInnerContainer");
1275
1276         if (!ctr) return;
1277
1278         if (where == "bottom") {
1279                 ctr.scrollTop = ctr.scrollHeight;
1280         } else {
1281                 ctr.scrollTop = where;
1282         }
1283 }
1284
1285 function cdmArticleIsBelowViewport(id) {
1286         try {
1287                 var ctr = document.getElementById("headlinesInnerContainer");
1288                 var e = document.getElementById("RROW-" + id);
1289
1290                 if (!e || !ctr) return;
1291
1292                 // article starts below viewport
1293
1294                 if (ctr.scrollTop < e.offsetTop) {
1295                         return true;
1296                 } else {
1297                         return false;
1298                 }
1299
1300         } catch (e) {
1301                 exception_error("cdmArticleIsVisible", e);
1302         }
1303 }
1304
1305 function cdmArticleIsAboveViewport(id) {
1306         try {
1307                 var ctr = document.getElementById("headlinesInnerContainer");
1308                 var e = document.getElementById("RROW-" + id);
1309
1310                 if (!e || !ctr) return;
1311
1312                 // article starts above viewport
1313
1314                 if (ctr.scrollTop > e.offsetTop + e.offsetHeight) {
1315                         return true;
1316                 } else {
1317                         return false;
1318                 }
1319
1320         } catch (e) {
1321                 exception_error("cdmArticleIsVisible", e);
1322         }
1323 }
1324
1325 function cdmScrollToArticleId(id) {
1326         try {
1327                 var ctr = document.getElementById("headlinesInnerContainer");
1328                 var e = document.getElementById("RROW-" + id);
1329
1330                 if (!e || !ctr) return;
1331
1332                 ctr.scrollTop = e.offsetTop;
1333
1334         } catch (e) {
1335                 exception_error("cdmScrollToArticleId", e);
1336         }
1337 }
1338
1339 function cdmArticleIsActuallyVisible(id) {
1340         try {
1341                 var ctr = document.getElementById("headlinesInnerContainer");
1342                 var e = document.getElementById("RROW-" + id);
1343
1344                 if (!e || !ctr) return;
1345
1346                 // article fits in viewport OR article is longer than viewport and
1347                 // its bottom is visible
1348
1349                 if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <=
1350                                 ctr.scrollTop + ctr.offsetHeight) {
1351
1352                         return true;
1353
1354                 } else if (e.offsetHeight > ctr.offsetHeight &&
1355                                 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1356                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
1357
1358                         return true;
1359
1360                 }
1361
1362                 return false;
1363
1364         } catch (e) {
1365                 exception_error("cdmArticleIsVisible", e);
1366         }
1367 }
1368
1369 function cdmWatchdog() {
1370
1371         try {
1372
1373                 var ctr = document.getElementById("headlinesInnerContainer");
1374
1375                 if (!ctr) return;
1376
1377                 var ids = new Array();
1378
1379                 var e = ctr.firstChild;
1380
1381                 while (e) {
1382                         if (e.className && e.className == "cdmArticleUnread" && e.id &&
1383                                         e.id.match("RROW-")) {
1384
1385                                 // article fits in viewport OR article is longer than viewport and
1386                                 // its bottom is visible
1387
1388                                 if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <=
1389                                                 ctr.scrollTop + ctr.offsetHeight) {
1390
1391 //                                      debug(e.id + " is visible " + e.offsetTop + "." +
1392 //                                              (e.offsetTop + e.offsetHeight) + " vs " + ctr.scrollTop + "." +
1393 //                                              (ctr.scrollTop + ctr.offsetHeight));
1394
1395                                         ids.push(e.id.replace("RROW-", ""));
1396
1397                                 } else if (e.offsetHeight > ctr.offsetHeight &&
1398                                                 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1399                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
1400
1401                                         ids.push(e.id.replace("RROW-", ""));
1402
1403                                 }
1404
1405                                 // method 2: article bottom is visible and is in upper 1/2 of the viewport
1406
1407 /*                              if (e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1408                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight/2) {
1409
1410                                         ids.push(e.id.replace("RROW-", ""));
1411
1412                                 } */
1413
1414                         }
1415
1416                         e = e.nextSibling;
1417                 }
1418
1419                 debug("cdmWatchdog, ids= " + ids.toString());
1420
1421                 if (ids.length > 0) {
1422
1423                         for (var i = 0; i < ids.length; i++) {
1424                                 var e = document.getElementById("RROW-" + ids[i]);
1425                                 if (e) {
1426                                         e.className = e.className.replace("Unread", "");
1427                                 }
1428                         }
1429
1430                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
1431                                 param_escape(ids.toString()) + "&cmode=0";
1432
1433                         new Ajax.Request(query, {
1434                                 onComplete: function(transport) {
1435                                         all_counters_callback2(transport);
1436                                 } });
1437
1438                 }
1439
1440                 _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 4000);
1441
1442         } catch (e) {
1443                 exception_error("cdmWatchdog", e);
1444         }
1445
1446 }
1447
1448
1449 function cache_inject(id, article, param) {
1450         if (!cache_check_param(id, param)) {
1451                 debug("cache_article: miss: " + id + " [p=" + param + "]");
1452
1453                 var cache_obj = new Array();
1454
1455                 cache_obj["id"] = id;
1456                 cache_obj["data"] = article;
1457                 cache_obj["param"] = param;
1458
1459                 article_cache.push(cache_obj);
1460
1461         } else {
1462                 debug("cache_article: hit: " + id + " [p=" + param + "]");
1463         }
1464 }
1465
1466 function cache_find(id) {
1467         for (var i = 0; i < article_cache.length; i++) {
1468                 if (article_cache[i]["id"] == id) {
1469                         return article_cache[i]["data"];
1470                 }
1471         }
1472         return false;
1473 }
1474
1475 function cache_find_param(id, param) {
1476         for (var i = 0; i < article_cache.length; i++) {
1477                 if (article_cache[i]["id"] == id && article_cache[i]["param"] == param) {
1478                         return article_cache[i]["data"];
1479                 }
1480         }
1481         return false;
1482 }
1483
1484 function cache_check(id) {
1485         for (var i = 0; i < article_cache.length; i++) {
1486                 if (article_cache[i]["id"] == id) {
1487                         return true;
1488                 }
1489         }
1490         return false;
1491 }
1492
1493 function cache_check_param(id, param) {
1494         for (var i = 0; i < article_cache.length; i++) {
1495
1496 //              debug("cache_check_param " + article_cache[i]["id"] + ":" +
1497 //                      article_cache[i]["param"] + " vs " + id + ":" + param);
1498
1499                 if (article_cache[i]["id"] == id && article_cache[i]["param"] == param) {
1500                         return true;
1501                 }
1502         }
1503         return false;
1504 }
1505
1506 function cache_expire() {
1507         while (article_cache.length > 25) {
1508                 article_cache.shift();
1509         }
1510 }
1511
1512 function cache_empty() {
1513         article_cache = new Array();
1514 }
1515
1516 function cache_invalidate(id) {
1517         var i = 0
1518
1519         try {
1520
1521                 while (i < article_cache.length) {
1522                         if (article_cache[i]["id"] == id) {
1523                                 debug("cache_invalidate: removed id " + id);
1524                                 article_cache.splice(i, 1);
1525                                 return true;
1526                         }
1527                         i++;
1528                 }
1529                 debug("cache_invalidate: id not found: " + id);
1530                 return false;
1531         } catch (e) {
1532                 exception_error("cache_invalidate", e);
1533         }
1534 }
1535
1536 function getActiveArticleId() {
1537         return active_post_id;
1538 }
1539
1540 function cdmClicked(id) {
1541         try {
1542                 var elem = document.getElementById("RROW-" + id);
1543
1544                 if (elem) {
1545                         var id = elem.id.replace("RROW-", "");
1546                         active_post_id = id;
1547
1548                         cdmSelectArticles("none");
1549                         toggleUnread(id, 0, true);
1550                         toggleSelected(id);
1551
1552                 }
1553         } catch (e) {
1554                 exception_error("cdmClicked", e);
1555         }
1556 }
1557
1558 function preload_article_callback(transport) {
1559         try {
1560                 if (transport.responseXML) {
1561                         var articles = transport.responseXML.getElementsByTagName("article");
1562
1563                         for (var i = 0; i < articles.length; i++) {
1564                                 var id = articles[i].getAttribute("id");
1565                                 if (!cache_check(id)) {
1566                                         cache_inject(id, articles[i].firstChild.nodeValue);
1567                                         debug("preloaded article: " + id);
1568                                 }
1569                         }
1570                 }
1571         } catch (e) {
1572                 exception_error("preload_article_callback", e);
1573         }
1574 }
1575
1576 function preloadArticleUnderPointer(id) {
1577         try {
1578                 if (getInitParam("bw_limit") == "1") return;
1579
1580                 if (post_under_pointer == id && !cache_check(id)) {
1581
1582                         debug("trying to preload article " + id);
1583
1584                         var neighbor_ids = getRelativePostIds(id, 1);
1585
1586                         /* only request uncached articles */
1587
1588                         var cids_to_request = Array();
1589
1590                         for (var i = 0; i < neighbor_ids.length; i++) {
1591                                 if (!cache_check(neighbor_ids[i])) {
1592                                         cids_to_request.push(neighbor_ids[i]);
1593                                 }
1594                         }
1595                         debug("additional ids: " + cids_to_request.toString());
1596
1597                         cids_to_request.push(id);
1598
1599                         var query = "backend.php?op=rpc&subop=getArticles&ids=" +
1600                                 cids_to_request.toString();
1601                         new Ajax.Request(query, {
1602                                 onComplete: function(transport) {
1603                                         preload_article_callback(transport);
1604                         } });
1605                 }
1606         } catch (e) {
1607                 exception_error("preloadArticleUnderPointer", e);
1608         }
1609 }
1610
1611 function postMouseIn(id) {
1612         try {
1613                 if (post_under_pointer != id) {
1614                         post_under_pointer = id;
1615                         if (!isCdmMode()) {
1616                                 window.setTimeout("preloadArticleUnderPointer(" + id + ")", 250);
1617                         }
1618                 }
1619
1620         } catch (e) {
1621                 exception_error("postMouseIn", e);
1622         }
1623 }
1624
1625 function postMouseOut(id) {
1626         try {
1627                 post_under_pointer = false;
1628         } catch (e) {
1629                 exception_error("postMouseOut", e);
1630         }
1631 }
1632
1633 function headlines_scroll_handler() {
1634         try {
1635
1636                 var e = document.getElementById("headlinesInnerContainer");
1637
1638                 // don't do infinite scrolling when Limit == All
1639
1640                 var toolbar_form = document.forms["main_toolbar_form"];
1641
1642                 var limit = toolbar_form.limit[toolbar_form.limit.selectedIndex];
1643                 if (limit.value != 0) {
1644
1645                         debug((e.scrollTop + e.offsetHeight) + " vs " + e.scrollHeight + " dis? " +
1646                                 _infscroll_disable);
1647
1648                         if (e.scrollTop + e.offsetHeight > e.scrollHeight - 100) {
1649                                 if (!_infscroll_disable) {
1650                                         debug("more cowbell!");
1651                                         viewNextFeedPage();
1652                                 }
1653                         }
1654                 }
1655
1656         } catch (e) {
1657                 exception_error("headlines_scroll_handler", e);
1658         }
1659 }
1660
1661 function catchupRelativeToArticle(below) {
1662
1663         try {
1664
1665                 if (!xmlhttp_ready(xmlhttp_rpc)) {
1666                         printLockingError();
1667                 }
1668
1669                 if (!getActiveArticleId()) {
1670                         alert(__("No article is selected."));
1671                         return;
1672                 }
1673
1674                 var visible_ids;
1675
1676                 if (document.getElementById("headlinesList")) {
1677                         visible_ids = getVisibleHeadlineIds();
1678                 } else {
1679                         visible_ids = cdmGetVisibleArticles();
1680                 }
1681
1682                 var ids_to_mark = new Array();
1683
1684                 if (!below) {
1685                         for (var i = 0; i < visible_ids.length; i++) {
1686                                 if (visible_ids[i] != getActiveArticleId()) {
1687                                         var e = document.getElementById("RROW-" + visible_ids[i]);
1688
1689                                         if (e && e.className.match("Unread")) {
1690                                                 ids_to_mark.push(visible_ids[i]);
1691                                         }
1692                                 } else {
1693                                         break;
1694                                 }
1695                         }
1696                 } else {
1697                         for (var i = visible_ids.length-1; i >= 0; i--) {
1698                                 if (visible_ids[i] != getActiveArticleId()) {
1699                                         var e = document.getElementById("RROW-" + visible_ids[i]);
1700
1701                                         if (e && e.className.match("Unread")) {
1702                                                 ids_to_mark.push(visible_ids[i]);
1703                                         }
1704                                 } else {
1705                                         break;
1706                                 }
1707                         }
1708                 }
1709
1710                 if (ids_to_mark.length == 0) {
1711                         alert(__("No articles found to mark"));
1712                 } else {
1713                         var msg = __("Mark %d article(s) as read?").replace("%d", ids_to_mark.length);
1714
1715                         if (confirm(msg)) {
1716
1717                                 for (var i = 0; i < ids_to_mark.length; i++) {
1718                                         var e = document.getElementById("RROW-" + ids_to_mark[i]);
1719                                         e.className = e.className.replace("Unread", "");
1720                                 }
1721
1722                                 var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
1723                                         param_escape(ids_to_mark.toString()) + "&cmode=0";
1724
1725                                 new Ajax.Request(query, {
1726                                         onComplete: function(transport) {
1727                                                 catchup_callback2(transport);
1728                                         } });
1729
1730                         }
1731                 }
1732
1733         } catch (e) {
1734                 exception_error("catchupRelativeToArticle", e);
1735         }
1736 }
1737
1738 function cdmExpandArticle(a_id) {
1739         try {
1740                 var id = 'CICD-' + a_id;
1741
1742                 try {
1743                         Element.hide("CEXC-" + a_id);
1744                 } catch (e) { }
1745
1746                 Effect.Appear(id, {duration : 0.5,
1747                         beforeStart: function(effect) {
1748                                 var h_id = 'CICH-' + a_id;
1749                                 var h_elem = document.getElementById(h_id);
1750                                 if (h_elem) { h_elem.style.display = "none"; }
1751
1752                                 toggleUnread(a_id, 0);
1753                         }});
1754
1755
1756         } catch (e) {
1757                 exception_error("appearBlockElementF", e);
1758         }
1759
1760 }
1761
1762 function fixHeadlinesOrder(ids) {
1763         try {
1764                 for (var i = 0; i < ids.length; i++) {
1765                         var e = document.getElementById("RROW-" + ids[i]);
1766
1767                         if (e) {
1768                                 if (i % 2 == 0) {
1769                                         e.className = e.className.replace("even", "odd");
1770                                 } else {
1771                                         e.className = e.className.replace("odd", "even");
1772                                 }
1773                         }
1774                 }
1775         } catch (e) {
1776                 exception_error("fixHeadlinesOrder", e);
1777         }
1778 }
1779
1780 function subtoolbarSearch() {
1781         try {
1782
1783                 var q = document.getElementById("subtoolbar_search_box");
1784
1785                 if (!q) return;
1786
1787                 q = q.value.toUpperCase();
1788
1789                 var ids = false;
1790                 var vis_ids = new Array();
1791
1792                 if (document.getElementById("headlinesList")) {
1793                         ids = getVisibleHeadlineIds();
1794                 } else {
1795                         ids = cdmGetVisibleArticles();
1796                 }
1797
1798                 for (var i = 0; i < ids.length; i++) {
1799                         var title = document.getElementById("RTITLE-" + ids[i]);
1800
1801                         if (title) {
1802                                 if (!title.innerHTML.toUpperCase().match(q)) {
1803                                         Element.hide(document.getElementById("RROW-" + ids[i]));
1804                                 } else {
1805                                         Element.show(document.getElementById("RROW-" + ids[i]));
1806                                         vis_ids.push(ids[i]);
1807                                 }
1808                         }
1809                 }
1810
1811                 fixHeadlinesOrder(vis_ids);
1812
1813         } catch (e) {
1814                 exception_error("subtoolbarSearch", e);
1815         }
1816 }
1817
1818 function hideReadHeadlines() {
1819         try {
1820
1821                 var ids = false;
1822                 var vis_ids = new Array();
1823
1824                 if (document.getElementById("headlinesList")) {
1825                         ids = getVisibleHeadlineIds();
1826                 } else {
1827                         ids = cdmGetVisibleArticles();
1828                 }
1829
1830                 var read_headlines_visible = true;
1831
1832                 for (var i = 0; i < ids.length; i++) {
1833                         var row = document.getElementById("RROW-" + ids[i]);
1834
1835                         if (row && row.className) {
1836                                 if (read_headlines_visible) {
1837                                         if (row.className.match("Unread") || row.className.match("Selected")) {
1838                                                 Element.show(row);
1839                                                 vis_ids.push(ids[i]);
1840                                         } else {
1841                                                 //Effect.Fade(row, {duration : 0.3});
1842                                                 Element.hide(row);
1843                                         }
1844                                 } else {
1845                                         Element.show(row);
1846                                         vis_ids.push(ids[i]);
1847                                 }
1848                         }
1849                 }
1850
1851                 fixHeadlinesOrder(vis_ids);
1852
1853                 read_headlines_visible = !read_headlines_visible;
1854
1855         } catch (e) {
1856                 exception_error("hideReadHeadlines", e);
1857         }
1858 }
1859
1860 function invertHeadlineSelection() {
1861         try {
1862                 var rows = new Array();
1863                 var r = false;
1864
1865                 if (!isCdmMode()) {
1866                         r = document.getElementsByTagName("TR");
1867                 } else {
1868                         r = document.getElementsByTagName("DIV");
1869                 }
1870
1871                 for (var i = 0; i < r.length; i++) {
1872                         if (r[i].id && r[i].id.match("RROW-")) {
1873                                 rows.push(r[i]);
1874                         }
1875                 }
1876
1877                 for (var i = 0; i < rows.length; i++) {
1878                         var nc = rows[i].className;
1879                         var id = rows[i].id.replace("RROW-", "");
1880                         var cb = document.getElementById("RCHK-" + id);
1881
1882                         if (!rows[i].className.match("Selected")) {
1883                                 nc = nc + "Selected";
1884                                 cb.checked = true;
1885                         } else {
1886                                 nc = nc.replace("Selected", "");
1887                                 cb.checked = false;
1888                         }
1889
1890                         rows[i].className = nc;
1891
1892                 }
1893
1894         } catch (e) {
1895                 exception_error("invertHeadlineSelection", e);
1896         }
1897 }
1898
1899 function getArticleUnderPointer() {
1900         return post_under_pointer;
1901 }
1902
1903 function zoomToArticle(id) {
1904         try {
1905                 var w = window.open("backend.php?op=view&mode=zoom&id=" + param_escape(id),
1906                         "ttrss_zoom_" + id,
1907                         "status=0,toolbar=0,location=0,width=450,height=300,scrollbars=1,menubar=0");
1908
1909         } catch (e) {
1910                 exception_error("zoomToArticle", e);
1911         }
1912 }
1913
1914 function showOriginalArticleInline(id) {
1915         try {
1916
1917                 var query = "backend.php?op=rpc&subop=getArticleLink&id=" + id;
1918
1919                 notify_progress("Loading, please wait...", true);
1920
1921                 new Ajax.Request(query, {
1922                         onComplete: function(transport) {
1923
1924                                 if (transport.responseXML) {
1925
1926                                         var link = transport.responseXML.getElementsByTagName("link")[0];
1927                                         var id = transport.responseXML.getElementsByTagName("id")[0];
1928
1929                                         notify("");
1930
1931                                         if (link && id) {
1932                                                 link = link.firstChild.nodeValue;
1933
1934                                                 var ci = document.getElementById("content-insert");
1935
1936                                                 var tmp = "<iframe id=\"inline_orig_article\" width=\""+ci.offsetWidth+"\" height=\""+ci.offsetHeight+"\" style=\"border-width : 0px;\" src=\""+link+"\"></iframe>";
1937
1938                                                 render_article(tmp);
1939
1940                                         }
1941                                 }
1942                         } });
1943
1944         } catch (e) {
1945                 exception_error("showOriginalArticleInline", e);
1946         }
1947 }
1948
1949
1950 function scrollArticle(offset) {
1951         try {
1952                 if (!isCdmMode()) {
1953                         var ci = document.getElementById("content-insert");
1954                         if (ci) {
1955                                 ci.scrollTop += offset;
1956                         }
1957                 } else {
1958                         var hi = document.getElementById("headlinesInnerContainer");
1959                         if (hi) {
1960                                 hi.scrollTop += offset;
1961                         }
1962
1963                 }
1964         } catch (e) {
1965                 exception_error("scrollArticle", e);
1966         }
1967 }