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                 if (!transport_error_check(transport)) return;
  71
  72                 clean_feed_selections();
  73
  74                 var is_cat = false;
  75                 var feed_id = false;
  76
  77                 if (transport.responseXML) {
  78                         var headlines = transport.responseXML.getElementsByTagName("headlines")[0];
  79                         if (headlines) {
  80                                 is_cat = headlines.getAttribute("is_cat");
  81                                 feed_id = headlines.getAttribute("id");
  82                                 setActiveFeedId(feed_id, is_cat);
  83                         }
  84                 }
  85
  86                 if (!is_cat) {
  87                         var feedr = document.getElementById("FEEDR-" + feed_id);
  88                         if (feedr && !feedr.className.match("Selected")) {
  89                                 feedr.className = feedr.className + "Selected";
  90                         }
  91                 } else {
  92                         var feedr = document.getElementById("FCAT-" + feed_id);
  93                         if (feedr && !feedr.className.match("Selected")) {
  94                                 feedr.className = feedr.className + "Selected";
  95                         }
  96                 }
  97
  98                 var f = document.getElementById("headlines-frame");
  99                 try {
 100                         if (feed_cur_page == 0) {
 101                                 debug("resetting headlines scrollTop");
 102                                 f.scrollTop = 0;
 103                         }
 104                 } catch (e) { };
 105
 106                 if (transport.responseXML) {
 107                         var headlines = transport.responseXML.getElementsByTagName("headlines")[0];
 108                         var headlines_count_obj = transport.responseXML.getElementsByTagName("headlines-count")[0];
 109                         var headlines_unread_obj = transport.responseXML.getElementsByTagName("headlines-unread")[0];
 110                         var disable_cache_obj = transport.responseXML.getElementsByTagName("disable-cache")[0];
 111
 112                         var vgroup_last_feed_obj =  transport.responseXML.getElementsByTagName("vgroup-last-feed")[0];
 113
 114                         var headlines_count = headlines_count_obj.getAttribute("value");
 115                         var headlines_unread = headlines_unread_obj.getAttribute("value");
 116                         var disable_cache = disable_cache_obj.getAttribute("value") != "0";
 117
 118                         vgroup_last_feed = vgroup_last_feed_obj.getAttribute("value");
 119
 120                         if (headlines_count == 0) {
 121                                 _infscroll_disable = 1;
 122                         } else {
 123                                 _infscroll_disable = 0;
 124                         }
 125
 126                         var counters = transport.responseXML.getElementsByTagName("counters")[0];
 127                         var articles = transport.responseXML.getElementsByTagName("article");
 128                         var runtime_info = transport.responseXML.getElementsByTagName("runtime-info");
 129
 130                         if (feed_cur_page == 0) {
 131                                 if (headlines) {
 132                                         f.innerHTML = headlines.firstChild.nodeValue;
 133
 134                                         var cache_prefix = "";
 135
 136                                         if (is_cat) {
 137                                                 cache_prefix = "C:";
 138                                         } else {
 139                                                 cache_prefix = "F:";
 140                                         }
 141
 142                                         cache_invalidate(cache_prefix + feed_id);
 143
 144                                         if (!disable_cache) {
 145                                                 cache_inject(cache_prefix + feed_id,
 146                                                         headlines.firstChild.nodeValue, headlines_unread);
 147                                         }
 148
 149                                 } else {
 150                                         debug("headlines_callback: returned no data");
 151                                 f.innerHTML = "<div class='whiteBox'>" + __('Could not update headlines (missing XML data)') + "</div>";
 152
 153                                 }
 154                         } else {
 155                                 if (headlines) {
 156                                         if (headlines_count > 0) {
 157                                                 debug("adding some more headlines...");
 158
 159                                                 var c = document.getElementById("headlinesList");
 160
 161                                                 if (!c) {
 162                                                         c = document.getElementById("headlinesInnerContainer");
 163                                                 }
 164
 165                                                 var ids = getSelectedArticleIds2();
 166
 167                                                 c.innerHTML = c.innerHTML + headlines.firstChild.nodeValue;
 168
 169                                                 debug("restore selected ids: " + ids);
 170
 171                                                 for (var i = 0; i < ids.length; i++) {
 172                                                         markHeadline(ids[i]);
 173                                                 }
 174
 175                                         } else {
 176                                                 debug("no new headlines received");
 177                                         }
 178                                 } else {
 179                                         debug("headlines_callback: returned no data");
 180                                         notify_error("Error while trying to load more headlines");
 181                                 }
 182
 183                         }
 184
 185                         if (articles) {
 186                                 for (var i = 0; i < articles.length; i++) {
 187                                         var a_id = articles[i].getAttribute("id");
 188                                         debug("found id: " + a_id);
 189                                         cache_inject(a_id, articles[i].firstChild.nodeValue);
 190                                 }
 191                         } else {
 192                                 debug("no cached articles received");
 193                         }
 194
 195                         if (counters) {
 196                                 debug("parsing piggybacked counters: " + counters);
 197                                 parse_counters(counters, false);
 198                         } else {
 199                                 debug("counters container not found in reply, requesting...");
 200                                 request_counters();
 201                         }
 202
 203                         if (runtime_info) {
 204                                 debug("parsing runtime info: " + runtime_info[0]);
 205                                 parse_runtime_info(runtime_info[0]);
 206                         } else {
 207                                 debug("counters container not found in reply");
 208                         }
 209
 210                 } else {
 211                         debug("headlines_callback: returned no XML object");
 212                         f.innerHTML = "<div class='whiteBox'>" + __('Could not update headlines (missing XML object)') + "</div>";
 213                 }
 214
 215                 if (typeof correctPNG != 'undefined') {
 216                         correctPNG();
 217                 }
 218
 219                 if (_cdm_wd_timeout) window.clearTimeout(_cdm_wd_timeout);
 220
 221                 if (!document.getElementById("headlinesList") &&
 222                                 getActiveFeedId() != -3 &&
 223                                 getInitParam("cdm_auto_catchup") == 1) {
 224                         debug("starting CDM watchdog");
 225                         _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 5000);
 226                         _cdm_wd_vishist = new Array();
 227                 } else {
 228                         debug("not in CDM mode or watchdog disabled");
 229                 }
 230
 231                 _feed_cur_page = feed_cur_page;
 232                 _infscroll_request_sent = 0;
 233
 234                 notify("");
 235
 236                 remove_splash();
 237
 238         } catch (e) {
 239                 exception_error("headlines_callback2", e, transport);
 240         }
 241 }
 242
 243 function render_article(article) {
 244         try {
 245                 var f = document.getElementById("content-frame");
 246                 try {
 247                         f.scrollTop = 0;
 248                 } catch (e) { };
 249
 250                 var fi = document.getElementById("content-insert");
 251
 252                 try {
 253                         fi.scrollTop = 0;
 254                 } catch (e) { };
 255
 256                 fi.innerHTML = article;
 257
 258         } catch (e) {
 259                 exception_error("render_article", e);
 260         }
 261 }
 262
 263 function showArticleInHeadlines(id) {
 264
 265         try {
 266
 267                 cleanSelected("headlinesList");
 268
 269                 var crow = document.getElementById("RROW-" + id);
 270
 271                 if (!crow) return;
 272
 273                 var article_is_unread = crow.className.match("Unread");
 274
 275                 crow.className = crow.className.replace("Unread", "");
 276
 277                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
 278
 279                 var upd_img_pic = document.getElementById("FUPDPIC-" + id);
 280
 281                 var cache_prefix = "";
 282
 283                 if (activeFeedIsCat()) {
 284                         cache_prefix = "C:";
 285                 } else {
 286                         cache_prefix = "F:";
 287                 }
 288
 289                 var view_mode = false;
 290
 291                 try {
 292                         view_mode = document.forms['main_toolbar_form'].view_mode;
 293                         view_mode = view_mode[view_mode.selectedIndex].value;
 294                 } catch (e) {
 295                         //
 296                 }
 297
 298                 if (upd_img_pic && upd_img_pic.src.match("updated.png")) {
 299                         upd_img_pic.src = "images/blank_icon.gif";
 300
 301                         cache_invalidate(cache_prefix + getActiveFeedId());
 302
 303                         cache_inject(cache_prefix + getActiveFeedId(),
 304                                 document.getElementById("headlines-frame").innerHTML,
 305                                 get_feed_unread(getActiveFeedId()));
 306
 307                 } else if (article_is_unread && view_mode == "all_articles") {
 308
 309                         cache_invalidate(cache_prefix + getActiveFeedId());
 310
 311                         cache_inject(cache_prefix + getActiveFeedId(),
 312                                 document.getElementById("headlines-frame").innerHTML,
 313                                 get_feed_unread(getActiveFeedId())-1);
 314
 315                 } else if (article_is_unread) {
 316                         cache_invalidate(cache_prefix + getActiveFeedId());
 317                 }
 318
 319                 markHeadline(id);
 320
 321         } catch (e) {
 322                 exception_error("showArticleInHeadlines", e);
 323         }
 324 }
 325
 326 function article_callback2(transport, id, feed_id) {
 327         try {
 328                 debug("article_callback2 " + id);
 329
 330                 if (transport.responseXML) {
 331
 332                         if (!transport_error_check(transport)) return;
 333
 334                         debug("looking for articles to cache...");
 335
 336                         var articles = transport.responseXML.getElementsByTagName("article");
 337
 338                         for (var i = 0; i < articles.length; i++) {
 339                                 var a_id = articles[i].getAttribute("id");
 340
 341                                 debug("found id: " + a_id);
 342
 343                                 if (a_id == active_post_id) {
 344                                         debug("active article, rendering...");
 345                                         render_article(articles[i].firstChild.nodeValue);
 346                                 }
 347
 348                                 cache_inject(a_id, articles[i].firstChild.nodeValue);
 349                         }
 350
 351                         if (id != last_requested_article) {
 352                                 debug("requested article id is out of sequence, aborting");
 353                                 return;
 354                         }
 355
 356                         active_real_feed_id = feed_id;
 357                         active_post_id = id;
 358
 359                         showArticleInHeadlines(id);
 360
 361                         var reply = transport.responseXML.firstChild.firstChild;
 362
 363                 } else {
 364                         debug("article_callback: returned no XML object");
 365                         //var f = document.getElementById("content-frame");
 366                         //f.innerHTML = "<div class='whiteBox'>" + __('Could not display article (missing XML object)') + "</div>";
 367                 }
 368
 369                 var date = new Date();
 370                 last_article_view = date.getTime() / 1000;
 371
 372                 if (typeof correctPNG != 'undefined') {
 373                         correctPNG();
 374                 }
 375
 376                 if (_reload_feedlist_after_view) {
 377                         setTimeout('updateFeedList(false, false)', 50);
 378                         _reload_feedlist_after_view = false;
 379                 } else {
 380                         var counters = transport.responseXML.getElementsByTagName("counters")[0];
 381
 382                         if (counters) {
 383                                 debug("parsing piggybacked counters: " + counters);
 384                                 parse_counters(counters, false);
 385                         } else {
 386                                 debug("counters container not found in reply, requesting...");
 387                                 request_counters();
 388                         }
 389                 }
 390
 391                 notify("");
 392         } catch (e) {
 393                 exception_error("article_callback2", e, transport);
 394         }
 395 }
 396
 397 function view(id, feed_id, skip_history) {
 398
 399         try {
 400                 debug("loading article: " + id + "/" + feed_id);
 401
 402                 var cached_article = cache_find(id);
 403
 404                 debug("cache check result: " + (cached_article != false));
 405
 406                 enableHotkeys();
 407
 408                 //setActiveFeedId(feed_id);
 409
 410                 var query = "backend.php?op=view&id=" + param_escape(id) +
 411                         "&feed=" + param_escape(feed_id);
 412
 413                 var date = new Date();
 414
 415                 var neighbor_ids = getRelativePostIds(active_post_id);
 416
 417                 /* only request uncached articles */
 418
 419                 var cids_to_request = Array();
 420
 421                 for (var i = 0; i < neighbor_ids.length; i++) {
 422                         if (!cache_check(neighbor_ids[i])) {
 423                                 cids_to_request.push(neighbor_ids[i]);
 424                         }
 425                 }
 426
 427                 debug("additional ids: " + cids_to_request.toString());
 428
 429                 /* additional info for piggyback counters */
 430
 431                 if (tagsAreDisplayed()) {
 432                         query = query + "&omode=lt";
 433                 } else {
 434                         query = query + "&omode=flc";
 435                 }
 436
 437                 var date = new Date();
 438                 var timestamp = Math.round(date.getTime() / 1000);
 439                 query = query + "&ts=" + timestamp;
 440
 441                 query = query + "&cids=" + cids_to_request.toString();
 442
 443                 var crow = document.getElementById("RROW-" + id);
 444                 var article_is_unread = crow.className.match("Unread");
 445
 446                 if (!async_counters_work) {
 447                         query = query + "&csync=true";
 448                 }
 449
 450                 showArticleInHeadlines(id);
 451
 452                 if (!cached_article) {
 453
 454                         notify_progress("Loading, please wait...", true);
 455
 456                 } else if (cached_article && article_is_unread) {
 457
 458                         query = query + "&mode=prefetch";
 459
 460                         render_article(cached_article);
 461
 462                 } else if (cached_article) {
 463
 464                         query = query + "&mode=prefetch_old";
 465                         render_article(cached_article);
 466
 467                 }
 468
 469                 cache_expire();
 470
 471                 last_requested_article = id;
 472
 473                 new Ajax.Request(query, {
 474                         onComplete: function(transport) {
 475                                 article_callback2(transport, id, feed_id);
 476                         } });
 477
 478                 return false;
 479
 480         } catch (e) {
 481                 exception_error("view", e);
 482         }
 483 }
 484
 485 function tMark(id) {
 486         return toggleMark(id);
 487 }
 488
 489 function tPub(id) {
 490         return togglePub(id);
 491 }
 492
 493 function tMark_afh_off(effect) {
 494         try {
 495                 var elem = effect.effects[0].element;
 496
 497                 debug("tMark_afh_off : " + elem.id);
 498
 499                 if (elem) {
 500                         elem.src = elem.src.replace("mark_set", "mark_unset");
 501                         elem.alt = __("Star article");
 502                         Element.show(elem);
 503                 }
 504
 505         } catch (e) {
 506                 exception_error("tMark_afh_off", e);
 507         }
 508 }
 509
 510 function tPub_afh_off(effect) {
 511         try {
 512                 var elem = effect.effects[0].element;
 513
 514                 debug("tPub_afh_off : " + elem.id);
 515
 516                 if (elem) {
 517                         elem.src = elem.src.replace("pub_set", "pub_unset");
 518                         elem.alt = __("Publish article");
 519                         Element.show(elem);
 520                 }
 521
 522         } catch (e) {
 523                 exception_error("tPub_afh_off", e);
 524         }
 525 }
 526
 527 function toggleMark(id, client_only, no_effects) {
 528
 529         try {
 530
 531                 var query = "backend.php?op=rpc&id=" + id + "&subop=mark";
 532
 533                 query = query + "&afid=" + getActiveFeedId();
 534
 535                 if (tagsAreDisplayed()) {
 536                         query = query + "&omode=tl";
 537                 } else {
 538                         query = query + "&omode=flc";
 539                 }
 540
 541                 var mark_img = document.getElementById("FMPIC-" + id);
 542
 543                 if (!mark_img) return;
 544
 545                 var vfeedu = document.getElementById("FEEDU--1");
 546                 var crow = document.getElementById("RROW-" + id);
 547
 548                 if (mark_img.src.match("mark_unset")) {
 549                         mark_img.src = mark_img.src.replace("mark_unset", "mark_set");
 550                         mark_img.alt = __("Unstar article");
 551                         query = query + "&mark=1";
 552
 553                 } else {
 554                         //mark_img.src = "images/mark_unset.png";
 555                         mark_img.alt = __("Please wait...");
 556                         query = query + "&mark=0";
 557
 558                         if (document.getElementById("headlinesList") && !no_effects) {
 559                                 Effect.Puff(mark_img, {duration : 0.25, afterFinish: tMark_afh_off});
 560                         } else {
 561                                 mark_img.src = mark_img.src.replace("mark_set", "mark_unset");
 562                                 mark_img.alt = __("Star article");
 563                         }
 564                 }
 565
 566                 if (!client_only) {
 567                         debug(query);
 568
 569                         new Ajax.Request(query, {
 570                                 onComplete: function(transport) {
 571                                         all_counters_callback2(transport);
 572                                 } });
 573
 574                 }
 575
 576         } catch (e) {
 577                 exception_error("toggleMark", e);
 578         }
 579 }
 580
 581 function togglePub(id, client_only, no_effects) {
 582
 583         try {
 584
 585                 var query = "backend.php?op=rpc&id=" + id + "&subop=publ";
 586
 587                 query = query + "&afid=" + getActiveFeedId();
 588
 589                 if (tagsAreDisplayed()) {
 590                         query = query + "&omode=tl";
 591                 } else {
 592                         query = query + "&omode=flc";
 593                 }
 594
 595                 var mark_img = document.getElementById("FPPIC-" + id);
 596
 597                 if (!mark_img) return;
 598
 599                 var vfeedu = document.getElementById("FEEDU--2");
 600                 var crow = document.getElementById("RROW-" + id);
 601
 602                 if (mark_img.src.match("pub_unset")) {
 603                         mark_img.src = mark_img.src.replace("pub_unset", "pub_set");
 604                         mark_img.alt = __("Unpublish article");
 605                         query = query + "&pub=1";
 606
 607
 608                 } else {
 609                         //mark_img.src = "images/pub_unset.png";
 610                         mark_img.alt = __("Please wait...");
 611                         query = query + "&pub=0";
 612
 613                         if (document.getElementById("headlinesList") && !no_effects) {
 614                                 Effect.Puff(mark_img, {duration : 0.25, afterFinish: tPub_afh_off});
 615                         } else {
 616                                 mark_img.src = mark_img.src.replace("pub_set", "pub_unset");
 617                                 mark_img.alt = __("Publish article");
 618                         }
 619                 }
 620
 621                 if (!client_only) {
 622                         new Ajax.Request(query, {
 623                                 onComplete: function(transport) {
 624                                         all_counters_callback2(transport);
 625                                 } });
 626                 }
 627
 628         } catch (e) {
 629
 630                 exception_error("togglePub", e);
 631         }
 632 }
 633
 634 function correctHeadlinesOffset(id) {
 635
 636         try {
 637
 638                 var hlist = document.getElementById("headlinesList");
 639                 var container = document.getElementById("headlinesInnerContainer");
 640                 var row = document.getElementById("RROW-" + id);
 641
 642                 var viewport = container.offsetHeight;
 643
 644                 var rel_offset_top = row.offsetTop - container.scrollTop;
 645                 var rel_offset_bottom = row.offsetTop + row.offsetHeight - container.scrollTop;
 646
 647                 debug("Rtop: " + rel_offset_top + " Rbtm: " + rel_offset_bottom);
 648                 debug("Vport: " + viewport);
 649
 650                 if (rel_offset_top <= 0 || rel_offset_top > viewport) {
 651                         container.scrollTop = row.offsetTop;
 652                 } else if (rel_offset_bottom > viewport) {
 653
 654                         /* doesn't properly work with Opera in some cases because
 655                                 Opera fucks up element scrolling */
 656
 657                         container.scrollTop = row.offsetTop + row.offsetHeight - viewport;
 658                 }
 659
 660         } catch (e) {
 661                 exception_error("correctHeadlinesOffset", e);
 662         }
 663
 664 }
 665
 666 function moveToPost(mode) {
 667
 668         try {
 669
 670                 var rows;
 671
 672                 if (isCdmMode()) {
 673                         rows = cdmGetVisibleArticles();
 674                 } else {
 675                         rows = getVisibleHeadlineIds();
 676                 }
 677
 678                 var prev_id = false;
 679                 var next_id = false;
 680
 681                 if (!document.getElementById('RROW-' + active_post_id)) {
 682                         active_post_id = false;
 683                 }
 684
 685                 if (active_post_id == false) {
 686                         next_id = getFirstVisibleHeadlineId();
 687                         prev_id = getLastVisibleHeadlineId();
 688                 } else {
 689                         for (var i = 0; i < rows.length; i++) {
 690                                 if (rows[i] == active_post_id) {
 691                                         prev_id = rows[i-1];
 692                                         next_id = rows[i+1];
 693                                 }
 694                         }
 695                 }
 696
 697                 if (mode == "next") {
 698                         if (next_id) {
 699                                 if (isCdmMode()) {
 700
 701                                         if (!cdmArticleIsActuallyVisible(next_id)) {
 702                                                 cdmScrollToArticleId(next_id);
 703                                         }
 704                                         cdmSelectArticles("none");
 705                                         toggleUnread(next_id, 0, true);
 706                                         toggleSelected(next_id);
 707
 708                                 } else {
 709                                         correctHeadlinesOffset(next_id);
 710                                         view(next_id, getActiveFeedId());
 711                                 }
 712                         }
 713                 }
 714
 715                 if (mode == "prev") {
 716                         if (prev_id) {
 717                                 if (isCdmMode()) {
 718                                         cdmScrollToArticleId(prev_id);
 719                                         cdmSelectArticles("none");
 720                                         toggleUnread(prev_id, 0, true);
 721                                         toggleSelected(prev_id);
 722                                 } else {
 723                                         correctHeadlinesOffset(prev_id);
 724                                         view(prev_id, getActiveFeedId());
 725                                 }
 726                         }
 727                 }
 728
 729         } catch (e) {
 730                 exception_error("moveToPost", e);
 731         }
 732 }
 733
 734 function toggleSelected(id) {
 735         try {
 736
 737                 var cb = document.getElementById("RCHK-" + id);
 738
 739                 var row = document.getElementById("RROW-" + id);
 740                 if (row) {
 741                         var nc = row.className;
 742
 743                         if (!nc.match("Selected")) {
 744                                 nc = nc + "Selected";
 745                                 if (cb) {
 746                                         cb.checked = true;
 747                                 }
 748
 749                                 // In CDM basically last selected article == active article
 750                                 if (isCdmMode()) active_post_id = id;
 751                         } else {
 752                                 nc = nc.replace("Selected", "");
 753                                 if (cb) {
 754                                         cb.checked = false;
 755                                 }
 756
 757                         }
 758
 759                         row.className = nc;
 760                 }
 761         } catch (e) {
 762                 exception_error("toggleSelected", e);
 763         }
 764 }
 765
 766 function toggleUnread_afh(effect) {
 767         try {
 768
 769                 var elem = effect.element;
 770                 elem.style.backgroundColor = "";
 771
 772         } catch (e) {
 773                 exception_error("toggleUnread_afh", e);
 774         }
 775 }
 776
 777 function toggleUnread(id, cmode, effect) {
 778         try {
 779
 780                 var row = document.getElementById("RROW-" + id);
 781                 if (row) {
 782                         var nc = row.className;
 783                         var is_selected = row.className.match("Selected");
 784                         nc = nc.replace("Unread", "");
 785                         nc = nc.replace("Selected", "");
 786
 787                         // since we are removing selection from the object, uncheck
 788                         // corresponding checkbox
 789
 790                         var cb = document.getElementById("RCHK-" + id);
 791                         if (cb) {
 792                                 cb.checked = false;
 793                         }
 794
 795                         // NOTE: I'm not sure that resetting selection here is a feature -fox
 796
 797                         if (cmode == undefined || cmode == 2) {
 798                                 if (row.className.match("Unread")) {
 799                                         row.className = nc;
 800
 801                                         if (effect) {
 802                                                 new Effect.Highlight(row, {duration: 1, startcolor: "#fff7d5",
 803                                                         afterFinish: toggleUnread_afh,
 804                                                         queue: { position:'end', scope: 'TMRQ-' + id, limit: 1 } } );
 805                                         }
 806
 807                                 } else {
 808                                         row.className = nc + "Unread";
 809                                 }
 810                         } else if (cmode == 0) {
 811                                 row.className = nc;
 812
 813                                 if (effect) {
 814                                         new Effect.Highlight(row, {duration: 1, startcolor: "#fff7d5",
 815                                                 afterFinish: toggleUnread_afh,
 816                                                 queue: { position:'end', scope: 'TMRQ-' + id, limit: 1 } } );
 817                                 }
 818                         } else if (cmode == 1) {
 819                                 row.className = nc + "Unread";
 820                         }
 821
 822                         // Disable unmarking as selected for the time being (16.05.08) -fox
 823                         if (is_selected) row.className = row.className + "Selected";
 824
 825                         if (cmode == undefined) cmode = 2;
 826
 827                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
 828                                 param_escape(id) + "&cmode=" + param_escape(cmode);
 829
 830 //                      notify_progress("Loading, please wait...");
 831
 832                         new Ajax.Request(query, {
 833                                 onComplete: function(transport) {
 834                                         all_counters_callback2(transport);
 835                                 } });
 836
 837                 }
 838
 839
 840         } catch (e) {
 841                 exception_error("toggleUnread", e);
 842         }
 843 }
 844
 845 function selectionRemoveLabel(id) {
 846         try {
 847
 848                 var ids = getSelectedArticleIds2();
 849
 850                 if (ids.length == 0) {
 851                         alert(__("No articles are selected."));
 852                         return;
 853                 }
 854
 855 //              var ok = confirm(__("Remove selected articles from label?"));
 856
 857 //              if (ok) {
 858
 859                         var query = "backend.php?op=rpc&subop=removeFromLabel&ids=" +
 860                                 param_escape(ids.toString()) + "&lid=" + param_escape(id);
 861
 862 //                      notify_progress("Loading, please wait...");
 863
 864                         cache_invalidate("F:" + (-11 - id));
 865
 866                         new Ajax.Request(query, {
 867                                 onComplete: function(transport) {
 868                                         show_labels_in_headlines(transport);
 869                                         all_counters_callback2(transport);
 870                                 } });
 871
 872 //              }
 873
 874         } catch (e) {
 875                 exception_error("selectionAssignLabel", e);
 876
 877         }
 878 }
 879
 880 function selectionAssignLabel(id) {
 881         try {
 882
 883                 var ids = getSelectedArticleIds2();
 884
 885                 if (ids.length == 0) {
 886                         alert(__("No articles are selected."));
 887                         return;
 888                 }
 889
 890 //              var ok = confirm(__("Assign selected articles to label?"));
 891
 892 //              if (ok) {
 893
 894                         cache_invalidate("F:" + (-11 - id));
 895
 896                         var query = "backend.php?op=rpc&subop=assignToLabel&ids=" +
 897                                 param_escape(ids.toString()) + "&lid=" + param_escape(id);
 898
 899 //                      notify_progress("Loading, please wait...");
 900
 901                         new Ajax.Request(query, {
 902                                 onComplete: function(transport) {
 903                                         show_labels_in_headlines(transport);
 904                                         all_counters_callback2(transport);
 905                                 } });
 906
 907 //              }
 908
 909         } catch (e) {
 910                 exception_error("selectionAssignLabel", e);
 911
 912         }
 913 }
 914
 915 function selectionToggleUnread(cdm_mode, set_state, callback_func, no_error) {
 916         try {
 917                 var rows;
 918
 919                 if (cdm_mode) {
 920                         rows = cdmGetSelectedArticles();
 921                 } else {
 922                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 923                 }
 924
 925                 if (rows.length == 0 && !no_error) {
 926                         alert(__("No articles are selected."));
 927                         return;
 928                 }
 929
 930                 for (i = 0; i < rows.length; i++) {
 931                         var row = document.getElementById("RROW-" + rows[i]);
 932                         if (row) {
 933                                 var nc = row.className;
 934                                 nc = nc.replace("Unread", "");
 935                                 nc = nc.replace("Selected", "");
 936
 937                                 if (set_state == undefined) {
 938                                         if (row.className.match("Unread")) {
 939                                                 row.className = nc + "Selected";
 940                                         } else {
 941                                                 row.className = nc + "UnreadSelected";
 942                                         }
 943                                 }
 944
 945                                 if (set_state == false) {
 946                                         row.className = nc + "Selected";
 947                                 }
 948
 949                                 if (set_state == true) {
 950                                         row.className = nc + "UnreadSelected";
 951                                 }
 952                         }
 953                 }
 954
 955                 if (rows.length > 0) {
 956
 957                         var cmode = "";
 958
 959                         if (set_state == undefined) {
 960                                 cmode = "2";
 961                         } else if (set_state == true) {
 962                                 cmode = "1";
 963                         } else if (set_state == false) {
 964                                 cmode = "0";
 965                         }
 966
 967                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
 968                                 param_escape(rows.toString()) + "&cmode=" + cmode;
 969
 970                         notify_progress("Loading, please wait...");
 971
 972                         new Ajax.Request(query, {
 973                                 onComplete: function(transport) {
 974                                         catchup_callback2(transport, callback_func);
 975                                 } });
 976
 977                 }
 978
 979         } catch (e) {
 980                 exception_error("selectionToggleUnread", e);
 981         }
 982 }
 983
 984 function selectionToggleMarked(cdm_mode) {
 985         try {
 986
 987                 var rows;
 988
 989                 if (cdm_mode) {
 990                         rows = cdmGetSelectedArticles();
 991                 } else {
 992                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 993                 }
 994
 995                 if (rows.length == 0) {
 996                         alert(__("No articles are selected."));
 997                         return;
 998                 }
 999
1000                 for (i = 0; i < rows.length; i++) {
1001                         toggleMark(rows[i], true, true);
1002                 }
1003
1004                 if (rows.length > 0) {
1005
1006                         var query = "backend.php?op=rpc&subop=markSelected&ids=" +
1007                                 param_escape(rows.toString()) + "&cmode=2";
1008
1009                         query = query + "&afid=" + getActiveFeedId();
1010
1011 /*                      if (tagsAreDisplayed()) {
1012                                 query = query + "&omode=tl";
1013                         } else {
1014                                 query = query + "&omode=flc";
1015                         } */
1016
1017                         query = query + "&omode=lc";
1018
1019                         new Ajax.Request(query, {
1020                                 onComplete: function(transport) {
1021                                         all_counters_callback2(transport);
1022                                 } });
1023
1024                 }
1025
1026         } catch (e) {
1027                 exception_error("selectionToggleMarked", e);
1028         }
1029 }
1030
1031 function selectionTogglePublished(cdm_mode) {
1032         try {
1033
1034                 var rows;
1035
1036                 if (cdm_mode) {
1037                         rows = cdmGetSelectedArticles();
1038                 } else {
1039                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1040                 }
1041
1042                 if (rows.length == 0) {
1043                         alert(__("No articles are selected."));
1044                         return;
1045                 }
1046
1047                 for (i = 0; i < rows.length; i++) {
1048                         togglePub(rows[i], true, true);
1049                 }
1050
1051                 if (rows.length > 0) {
1052
1053                         var query = "backend.php?op=rpc&subop=publishSelected&ids=" +
1054                                 param_escape(rows.toString()) + "&cmode=2";
1055
1056                         query = query + "&afid=" + getActiveFeedId();
1057
1058 /*                      if (tagsAreDisplayed()) {
1059                                 query = query + "&omode=tl";
1060                         } else {
1061                                 query = query + "&omode=flc";
1062                         } */
1063
1064                         query = query + "&omode=lc";
1065
1066                         new Ajax.Request(query, {
1067                                 onComplete: function(transport) {
1068                                         all_counters_callback2(transport);
1069                                 } });
1070
1071                 }
1072
1073         } catch (e) {
1074                 exception_error("selectionToggleMarked", e);
1075         }
1076 }
1077
1078 function cdmGetSelectedArticles() {
1079         var sel_articles = new Array();
1080         var container = document.getElementById("headlinesInnerContainer");
1081
1082         for (i = 0; i < container.childNodes.length; i++) {
1083                 var child = container.childNodes[i];
1084
1085                 if (child.id && child.id.match("RROW-") && child.className.match("Selected")) {
1086                         var c_id = child.id.replace("RROW-", "");
1087                         sel_articles.push(c_id);
1088                 }
1089         }
1090
1091         return sel_articles;
1092 }
1093
1094 function cdmGetVisibleArticles() {
1095         var sel_articles = new Array();
1096         var container = document.getElementById("headlinesInnerContainer");
1097
1098         if (!container) return sel_articles;
1099
1100         for (i = 0; i < container.childNodes.length; i++) {
1101                 var child = container.childNodes[i];
1102
1103                 if (child.id && child.id.match("RROW-")) {
1104                         var c_id = child.id.replace("RROW-", "");
1105                         sel_articles.push(c_id);
1106                 }
1107         }
1108
1109         return sel_articles;
1110 }
1111
1112 function cdmGetUnreadArticles() {
1113         var sel_articles = new Array();
1114         var container = document.getElementById("headlinesInnerContainer");
1115
1116         for (i = 0; i < container.childNodes.length; i++) {
1117                 var child = container.childNodes[i];
1118
1119                 if (child.id && child.id.match("RROW-") && child.className.match("Unread")) {
1120                         var c_id = child.id.replace("RROW-", "");
1121                         sel_articles.push(c_id);
1122                 }
1123         }
1124
1125         return sel_articles;
1126 }
1127
1128
1129 // mode = all,none,unread
1130 function cdmSelectArticles(mode) {
1131         var container = document.getElementById("headlinesInnerContainer");
1132
1133         for (i = 0; i < container.childNodes.length; i++) {
1134                 var child = container.childNodes[i];
1135
1136                 if (child.id && child.id.match("RROW-")) {
1137                         var aid = child.id.replace("RROW-", "");
1138
1139                         var cb = document.getElementById("RCHK-" + aid);
1140
1141                         if (mode == "all") {
1142                                 if (!child.className.match("Selected")) {
1143                                         child.className = child.className + "Selected";
1144                                         cb.checked = true;
1145                                 }
1146                         } else if (mode == "unread") {
1147                                 if (child.className.match("Unread") && !child.className.match("Selected")) {
1148                                         child.className = child.className + "Selected";
1149                                         cb.checked = true;
1150                                 }
1151                         } else {
1152                                 child.className = child.className.replace("Selected", "");
1153                                 cb.checked = false;
1154                         }
1155                 }
1156         }
1157 }
1158
1159 function catchupPage() {
1160
1161         var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
1162
1163         var str = __("Mark all visible articles in %s as read?");
1164
1165         str = str.replace("%s", fn);
1166
1167         if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1168                 return;
1169         }
1170
1171         if (document.getElementById("headlinesList")) {
1172                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, 'Unread', true);
1173                 selectionToggleUnread(false, false, 'viewCurrentFeed()', true);
1174                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
1175         } else {
1176                 cdmSelectArticles('all');
1177                 selectionToggleUnread(true, false, 'viewCurrentFeed()', true)
1178                 cdmSelectArticles('none');
1179         }
1180 }
1181
1182 function catchupSelection() {
1183
1184         try {
1185
1186                 var rows;
1187
1188                 if (document.getElementById("headlinesList")) {
1189                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1190                 } else {
1191                         rows = cdmGetSelectedArticles();
1192                 }
1193
1194                 if (rows.length == 0) {
1195                         alert(__("No articles are selected."));
1196                         return;
1197                 }
1198
1199
1200                 var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
1201
1202                 var str = __("Mark %d selected articles in %s as read?");
1203
1204                 str = str.replace("%d", rows.length);
1205                 str = str.replace("%s", fn);
1206
1207                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1208                         return;
1209                 }
1210
1211                 if (document.getElementById("headlinesList")) {
1212                         selectionToggleUnread(false, false, 'viewCurrentFeed()', true);
1213         //              selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
1214                 } else {
1215                         selectionToggleUnread(true, false, 'viewCurrentFeed()', true)
1216         //              cdmSelectArticles('none');
1217                 }
1218
1219         } catch (e) {
1220                 exception_error("catchupSelection", e);
1221         }
1222 }
1223
1224 function editArticleTags(id, feed_id, cdm_enabled) {
1225         displayDlg('editArticleTags', id);
1226 }
1227
1228
1229 function tag_saved_callback(transport) {
1230         try {
1231                 debug("in tag_saved_callback");
1232
1233                 closeInfoBox();
1234                 notify("");
1235
1236                 if (tagsAreDisplayed()) {
1237                         _reload_feedlist_after_view = true;
1238                 }
1239
1240
1241                 if (transport.responseXML) {
1242                         var tags_str = transport.responseXML.getElementsByTagName("tags-str")[0];
1243
1244                         if (tags_str) {
1245                                 var id = tags_str.getAttribute("id");
1246
1247                                 if (id) {
1248                                         var tags = document.getElementById("ATSTR-" + id);
1249                                         if (tags) {
1250                                                 tags.innerHTML = tags_str.firstChild.nodeValue;
1251                                         }
1252                                 }
1253                         }
1254                 }
1255
1256         } catch (e) {
1257                 exception_error("tag_saved_callback", e);
1258         }
1259 }
1260
1261 function editTagsSave() {
1262
1263         notify_progress("Saving article tags...");
1264
1265         var form = document.forms["tag_edit_form"];
1266
1267         var query = Form.serialize("tag_edit_form");
1268
1269         query = "backend.php?op=rpc&subop=setArticleTags&" + query;
1270
1271         debug(query);
1272
1273         new Ajax.Request(query, {
1274                 onComplete: function(transport) {
1275                                 tag_saved_callback(transport);
1276                         } });
1277
1278 }
1279
1280 function editTagsInsert() {
1281         try {
1282
1283                 var form = document.forms["tag_edit_form"];
1284
1285                 var found_tags = form.found_tags;
1286                 var tags_str = form.tags_str;
1287
1288                 var tag = found_tags[found_tags.selectedIndex].value;
1289
1290                 if (tags_str.value.length > 0 &&
1291                                 tags_str.value.lastIndexOf(", ") != tags_str.value.length - 2) {
1292
1293                         tags_str.value = tags_str.value + ", ";
1294                 }
1295
1296                 tags_str.value = tags_str.value + tag + ", ";
1297
1298                 found_tags.selectedIndex = 0;
1299
1300         } catch (e) {
1301                 exception_error("editTagsInsert", e);
1302         }
1303 }
1304
1305 function cdmScrollViewport(where) {
1306         debug("cdmScrollViewport: " + where);
1307
1308         var ctr = document.getElementById("headlinesInnerContainer");
1309
1310         if (!ctr) return;
1311
1312         if (where == "bottom") {
1313                 ctr.scrollTop = ctr.scrollHeight;
1314         } else {
1315                 ctr.scrollTop = where;
1316         }
1317 }
1318
1319 function cdmArticleIsBelowViewport(id) {
1320         try {
1321                 var ctr = document.getElementById("headlinesInnerContainer");
1322                 var e = document.getElementById("RROW-" + id);
1323
1324                 if (!e || !ctr) return;
1325
1326                 // article starts below viewport
1327
1328                 if (ctr.scrollTop < e.offsetTop) {
1329                         return true;
1330                 } else {
1331                         return false;
1332                 }
1333
1334         } catch (e) {
1335                 exception_error("cdmArticleIsVisible", e);
1336         }
1337 }
1338
1339 function cdmArticleIsAboveViewport(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 starts above viewport
1347
1348                 if (ctr.scrollTop > e.offsetTop + e.offsetHeight) {
1349                         return true;
1350                 } else {
1351                         return false;
1352                 }
1353
1354         } catch (e) {
1355                 exception_error("cdmArticleIsVisible", e);
1356         }
1357 }
1358
1359 function cdmScrollToArticleId(id) {
1360         try {
1361                 var ctr = document.getElementById("headlinesInnerContainer");
1362                 var e = document.getElementById("RROW-" + id);
1363
1364                 if (!e || !ctr) return;
1365
1366                 ctr.scrollTop = e.offsetTop;
1367
1368         } catch (e) {
1369                 exception_error("cdmScrollToArticleId", e);
1370         }
1371 }
1372
1373 function cdmArticleIsActuallyVisible(id) {
1374         try {
1375                 var ctr = document.getElementById("headlinesInnerContainer");
1376                 var e = document.getElementById("RROW-" + id);
1377
1378                 if (!e || !ctr) return;
1379
1380                 // article fits in viewport OR article is longer than viewport and
1381                 // its bottom is visible
1382
1383                 if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <=
1384                                 ctr.scrollTop + ctr.offsetHeight) {
1385
1386                         return true;
1387
1388                 } else if (e.offsetHeight > ctr.offsetHeight &&
1389                                 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1390                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
1391
1392                         return true;
1393
1394                 }
1395
1396                 return false;
1397
1398         } catch (e) {
1399                 exception_error("cdmArticleIsVisible", e);
1400         }
1401 }
1402
1403 function cdmWatchdog() {
1404
1405         try {
1406
1407                 var ctr = document.getElementById("headlinesInnerContainer");
1408
1409                 if (!ctr) return;
1410
1411                 var ids = new Array();
1412
1413                 var e = ctr.firstChild;
1414
1415                 while (e) {
1416                         if (e.className && e.className == "cdmArticleUnread" && e.id &&
1417                                         e.id.match("RROW-")) {
1418
1419                                 // article fits in viewport OR article is longer than viewport and
1420                                 // its bottom is visible
1421
1422                                 if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <=
1423                                                 ctr.scrollTop + ctr.offsetHeight) {
1424
1425 //                                      debug(e.id + " is visible " + e.offsetTop + "." +
1426 //                                              (e.offsetTop + e.offsetHeight) + " vs " + ctr.scrollTop + "." +
1427 //                                              (ctr.scrollTop + ctr.offsetHeight));
1428
1429                                         ids.push(e.id.replace("RROW-", ""));
1430
1431                                 } else if (e.offsetHeight > ctr.offsetHeight &&
1432                                                 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1433                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
1434
1435                                         ids.push(e.id.replace("RROW-", ""));
1436
1437                                 }
1438
1439                                 // method 2: article bottom is visible and is in upper 1/2 of the viewport
1440
1441 /*                              if (e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1442                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight/2) {
1443
1444                                         ids.push(e.id.replace("RROW-", ""));
1445
1446                                 } */
1447
1448                         }
1449
1450                         e = e.nextSibling;
1451                 }
1452
1453                 debug("cdmWatchdog, ids= " + ids.toString());
1454
1455                 if (ids.length > 0) {
1456
1457                         for (var i = 0; i < ids.length; i++) {
1458                                 var e = document.getElementById("RROW-" + ids[i]);
1459                                 if (e) {
1460                                         e.className = e.className.replace("Unread", "");
1461                                 }
1462                         }
1463
1464                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
1465                                 param_escape(ids.toString()) + "&cmode=0";
1466
1467                         new Ajax.Request(query, {
1468                                 onComplete: function(transport) {
1469                                         all_counters_callback2(transport);
1470                                 } });
1471
1472                 }
1473
1474                 _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 4000);
1475
1476         } catch (e) {
1477                 exception_error("cdmWatchdog", e);
1478         }
1479
1480 }
1481
1482
1483 function cache_inject(id, article, param) {
1484         if (!cache_check_param(id, param)) {
1485                 debug("cache_article: miss: " + id + " [p=" + param + "]");
1486
1487                 var cache_obj = new Array();
1488
1489                 cache_obj["id"] = id;
1490                 cache_obj["data"] = article;
1491                 cache_obj["param"] = param;
1492
1493                 article_cache.push(cache_obj);
1494
1495         } else {
1496                 debug("cache_article: hit: " + id + " [p=" + param + "]");
1497         }
1498 }
1499
1500 function cache_find(id) {
1501         for (var i = 0; i < article_cache.length; i++) {
1502                 if (article_cache[i]["id"] == id) {
1503                         return article_cache[i]["data"];
1504                 }
1505         }
1506         return false;
1507 }
1508
1509 function cache_find_param(id, param) {
1510         for (var i = 0; i < article_cache.length; i++) {
1511                 if (article_cache[i]["id"] == id && article_cache[i]["param"] == param) {
1512                         return article_cache[i]["data"];
1513                 }
1514         }
1515         return false;
1516 }
1517
1518 function cache_check(id) {
1519         for (var i = 0; i < article_cache.length; i++) {
1520                 if (article_cache[i]["id"] == id) {
1521                         return true;
1522                 }
1523         }
1524         return false;
1525 }
1526
1527 function cache_check_param(id, param) {
1528         for (var i = 0; i < article_cache.length; i++) {
1529
1530 //              debug("cache_check_param " + article_cache[i]["id"] + ":" +
1531 //                      article_cache[i]["param"] + " vs " + id + ":" + param);
1532
1533                 if (article_cache[i]["id"] == id && article_cache[i]["param"] == param) {
1534                         return true;
1535                 }
1536         }
1537         return false;
1538 }
1539
1540 function cache_expire() {
1541         while (article_cache.length > 25) {
1542                 article_cache.shift();
1543         }
1544 }
1545
1546 function cache_empty() {
1547         article_cache = new Array();
1548 }
1549
1550 function cache_invalidate(id) {
1551         var i = 0
1552
1553         try {
1554
1555                 while (i < article_cache.length) {
1556                         if (article_cache[i]["id"] == id) {
1557                                 debug("cache_invalidate: removed id " + id);
1558                                 article_cache.splice(i, 1);
1559                                 return true;
1560                         }
1561                         i++;
1562                 }
1563                 debug("cache_invalidate: id not found: " + id);
1564                 return false;
1565         } catch (e) {
1566                 exception_error("cache_invalidate", e);
1567         }
1568 }
1569
1570 function getActiveArticleId() {
1571         return active_post_id;
1572 }
1573
1574 function cdmClicked(id) {
1575         try {
1576                 var elem = document.getElementById("RROW-" + id);
1577
1578                 if (elem) {
1579                         var id = elem.id.replace("RROW-", "");
1580                         active_post_id = id;
1581
1582                         cdmSelectArticles("none");
1583                         toggleUnread(id, 0, true);
1584                         toggleSelected(id);
1585
1586                 }
1587         } catch (e) {
1588                 exception_error("cdmClicked", e);
1589         }
1590 }
1591
1592 function preload_article_callback(transport) {
1593         try {
1594                 if (transport.responseXML) {
1595                         var articles = transport.responseXML.getElementsByTagName("article");
1596
1597                         for (var i = 0; i < articles.length; i++) {
1598                                 var id = articles[i].getAttribute("id");
1599                                 if (!cache_check(id)) {
1600                                         cache_inject(id, articles[i].firstChild.nodeValue);
1601                                         debug("preloaded article: " + id);
1602                                 }
1603                         }
1604                 }
1605         } catch (e) {
1606                 exception_error("preload_article_callback", e);
1607         }
1608 }
1609
1610 function preloadArticleUnderPointer(id) {
1611         try {
1612                 if (getInitParam("bw_limit") == "1") return;
1613
1614                 if (post_under_pointer == id && !cache_check(id)) {
1615
1616                         debug("trying to preload article " + id);
1617
1618                         var neighbor_ids = getRelativePostIds(id, 1);
1619
1620                         /* only request uncached articles */
1621
1622                         var cids_to_request = Array();
1623
1624                         for (var i = 0; i < neighbor_ids.length; i++) {
1625                                 if (!cache_check(neighbor_ids[i])) {
1626                                         cids_to_request.push(neighbor_ids[i]);
1627                                 }
1628                         }
1629                         debug("additional ids: " + cids_to_request.toString());
1630
1631                         cids_to_request.push(id);
1632
1633                         var query = "backend.php?op=rpc&subop=getArticles&ids=" +
1634                                 cids_to_request.toString();
1635                         new Ajax.Request(query, {
1636                                 onComplete: function(transport) {
1637                                         preload_article_callback(transport);
1638                         } });
1639                 }
1640         } catch (e) {
1641                 exception_error("preloadArticleUnderPointer", e);
1642         }
1643 }
1644
1645 function postMouseIn(id) {
1646         try {
1647                 if (post_under_pointer != id) {
1648                         post_under_pointer = id;
1649                         if (!isCdmMode()) {
1650                                 window.setTimeout("preloadArticleUnderPointer(" + id + ")", 250);
1651                         }
1652                 }
1653
1654         } catch (e) {
1655                 exception_error("postMouseIn", e);
1656         }
1657 }
1658
1659 function postMouseOut(id) {
1660         try {
1661                 post_under_pointer = false;
1662         } catch (e) {
1663                 exception_error("postMouseOut", e);
1664         }
1665 }
1666
1667 function headlines_scroll_handler() {
1668         try {
1669
1670                 var e = document.getElementById("headlinesInnerContainer");
1671
1672                 // don't do infinite scrolling when Limit == All
1673
1674                 var toolbar_form = document.forms["main_toolbar_form"];
1675
1676                 var limit = toolbar_form.limit[toolbar_form.limit.selectedIndex];
1677                 if (limit.value != 0) {
1678
1679                         debug((e.scrollTop + e.offsetHeight) + " vs " + e.scrollHeight + " dis? " +
1680                                 _infscroll_disable);
1681
1682                         if (e.scrollTop + e.offsetHeight > e.scrollHeight - 100) {
1683                                 if (!_infscroll_disable) {
1684                                         debug("more cowbell!");
1685                                         viewNextFeedPage();
1686                                 }
1687                         }
1688                 }
1689
1690         } catch (e) {
1691                 exception_error("headlines_scroll_handler", e);
1692         }
1693 }
1694
1695 function catchupRelativeToArticle(below) {
1696
1697         try {
1698
1699                 if (!xmlhttp_ready(xmlhttp_rpc)) {
1700                         printLockingError();
1701                 }
1702
1703                 if (!getActiveArticleId()) {
1704                         alert(__("No article is selected."));
1705                         return;
1706                 }
1707
1708                 var visible_ids;
1709
1710                 if (document.getElementById("headlinesList")) {
1711                         visible_ids = getVisibleHeadlineIds();
1712                 } else {
1713                         visible_ids = cdmGetVisibleArticles();
1714                 }
1715
1716                 var ids_to_mark = new Array();
1717
1718                 if (!below) {
1719                         for (var i = 0; i < visible_ids.length; i++) {
1720                                 if (visible_ids[i] != getActiveArticleId()) {
1721                                         var e = document.getElementById("RROW-" + visible_ids[i]);
1722
1723                                         if (e && e.className.match("Unread")) {
1724                                                 ids_to_mark.push(visible_ids[i]);
1725                                         }
1726                                 } else {
1727                                         break;
1728                                 }
1729                         }
1730                 } else {
1731                         for (var i = visible_ids.length-1; i >= 0; i--) {
1732                                 if (visible_ids[i] != getActiveArticleId()) {
1733                                         var e = document.getElementById("RROW-" + visible_ids[i]);
1734
1735                                         if (e && e.className.match("Unread")) {
1736                                                 ids_to_mark.push(visible_ids[i]);
1737                                         }
1738                                 } else {
1739                                         break;
1740                                 }
1741                         }
1742                 }
1743
1744                 if (ids_to_mark.length == 0) {
1745                         alert(__("No articles found to mark"));
1746                 } else {
1747                         var msg = __("Mark %d article(s) as read?").replace("%d", ids_to_mark.length);
1748
1749                         if (confirm(msg)) {
1750
1751                                 for (var i = 0; i < ids_to_mark.length; i++) {
1752                                         var e = document.getElementById("RROW-" + ids_to_mark[i]);
1753                                         e.className = e.className.replace("Unread", "");
1754                                 }
1755
1756                                 var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
1757                                         param_escape(ids_to_mark.toString()) + "&cmode=0";
1758
1759                                 new Ajax.Request(query, {
1760                                         onComplete: function(transport) {
1761                                                 catchup_callback2(transport);
1762                                         } });
1763
1764                         }
1765                 }
1766
1767         } catch (e) {
1768                 exception_error("catchupRelativeToArticle", e);
1769         }
1770 }
1771
1772 function cdmExpandArticle(a_id) {
1773         try {
1774                 var id = 'CICD-' + a_id;
1775
1776                 try {
1777                         Element.hide("CEXC-" + a_id);
1778                 } catch (e) { }
1779
1780                 Effect.Appear(id, {duration : 0.5,
1781                         beforeStart: function(effect) {
1782                                 var h_id = 'CICH-' + a_id;
1783                                 var h_elem = document.getElementById(h_id);
1784                                 if (h_elem) { h_elem.style.display = "none"; }
1785
1786                                 toggleUnread(a_id, 0);
1787                         }});
1788
1789
1790         } catch (e) {
1791                 exception_error("appearBlockElementF", e);
1792         }
1793
1794 }
1795
1796 function fixHeadlinesOrder(ids) {
1797         try {
1798                 for (var i = 0; i < ids.length; i++) {
1799                         var e = document.getElementById("RROW-" + ids[i]);
1800
1801                         if (e) {
1802                                 if (i % 2 == 0) {
1803                                         e.className = e.className.replace("even", "odd");
1804                                 } else {
1805                                         e.className = e.className.replace("odd", "even");
1806                                 }
1807                         }
1808                 }
1809         } catch (e) {
1810                 exception_error("fixHeadlinesOrder", e);
1811         }
1812 }
1813
1814 function hideReadHeadlines() {
1815         try {
1816
1817                 var ids = false;
1818                 var vis_ids = new Array();
1819
1820                 if (document.getElementById("headlinesList")) {
1821                         ids = getVisibleHeadlineIds();
1822                 } else {
1823                         ids = cdmGetVisibleArticles();
1824                 }
1825
1826                 var read_headlines_visible = true;
1827
1828                 for (var i = 0; i < ids.length; i++) {
1829                         var row = document.getElementById("RROW-" + ids[i]);
1830
1831                         if (row && row.className) {
1832                                 if (read_headlines_visible) {
1833                                         if (row.className.match("Unread") || row.className.match("Selected")) {
1834                                                 Element.show(row);
1835                                                 vis_ids.push(ids[i]);
1836                                         } else {
1837                                                 //Effect.Fade(row, {duration : 0.3});
1838                                                 Element.hide(row);
1839                                         }
1840                                 } else {
1841                                         Element.show(row);
1842                                         vis_ids.push(ids[i]);
1843                                 }
1844                         }
1845                 }
1846
1847                 fixHeadlinesOrder(vis_ids);
1848
1849                 read_headlines_visible = !read_headlines_visible;
1850
1851         } catch (e) {
1852                 exception_error("hideReadHeadlines", e);
1853         }
1854 }
1855
1856 function invertHeadlineSelection() {
1857         try {
1858                 var rows = new Array();
1859                 var r = false;
1860
1861                 if (!isCdmMode()) {
1862                         r = document.getElementsByTagName("TR");
1863                 } else {
1864                         r = document.getElementsByTagName("DIV");
1865                 }
1866
1867                 for (var i = 0; i < r.length; i++) {
1868                         if (r[i].id && r[i].id.match("RROW-")) {
1869                                 rows.push(r[i]);
1870                         }
1871                 }
1872
1873                 for (var i = 0; i < rows.length; i++) {
1874                         var nc = rows[i].className;
1875                         var id = rows[i].id.replace("RROW-", "");
1876                         var cb = document.getElementById("RCHK-" + id);
1877
1878                         if (!rows[i].className.match("Selected")) {
1879                                 nc = nc + "Selected";
1880                                 cb.checked = true;
1881                         } else {
1882                                 nc = nc.replace("Selected", "");
1883                                 cb.checked = false;
1884                         }
1885
1886                         rows[i].className = nc;
1887
1888                 }
1889
1890         } catch (e) {
1891                 exception_error("invertHeadlineSelection", e);
1892         }
1893 }
1894
1895 function getArticleUnderPointer() {
1896         return post_under_pointer;
1897 }
1898
1899 function zoomToArticle(id) {
1900         try {
1901                 var w = window.open("backend.php?op=view&mode=zoom&id=" + param_escape(id),
1902                         "ttrss_zoom_" + id,
1903                         "status=0,toolbar=0,location=0,width=450,height=300,scrollbars=1,menubar=0");
1904
1905         } catch (e) {
1906                 exception_error("zoomToArticle", e);
1907         }
1908 }
1909
1910 function showOriginalArticleInline(id) {
1911         try {
1912
1913                 var query = "backend.php?op=rpc&subop=getArticleLink&id=" + id;
1914
1915                 notify_progress("Loading, please wait...", true);
1916
1917                 new Ajax.Request(query, {
1918                         onComplete: function(transport) {
1919
1920                                 if (transport.responseXML) {
1921
1922                                         var link = transport.responseXML.getElementsByTagName("link")[0];
1923                                         var id = transport.responseXML.getElementsByTagName("id")[0];
1924
1925                                         notify("");
1926
1927                                         if (link && id) {
1928                                                 link = link.firstChild.nodeValue;
1929
1930                                                 var ci = document.getElementById("content-insert");
1931
1932                                                 var tmp = "<iframe id=\"inline_orig_article\" width=\""+ci.offsetWidth+"\" height=\""+ci.offsetHeight+"\" style=\"border-width : 0px;\" src=\""+link+"\"></iframe>";
1933
1934                                                 render_article(tmp);
1935
1936                                         }
1937                                 }
1938                         } });
1939
1940         } catch (e) {
1941                 exception_error("showOriginalArticleInline", e);
1942         }
1943 }
1944
1945
1946 function scrollArticle(offset) {
1947         try {
1948                 if (!isCdmMode()) {
1949                         var ci = document.getElementById("content-insert");
1950                         if (ci) {
1951                                 ci.scrollTop += offset;
1952                         }
1953                 } else {
1954                         var hi = document.getElementById("headlinesInnerContainer");
1955                         if (hi) {
1956                                 hi.scrollTop += offset;
1957                         }
1958
1959                 }
1960         } catch (e) {
1961                 exception_error("scrollArticle", e);
1962         }
1963 }
1964
1965 function show_labels_in_headlines(transport) {
1966         try {
1967                 if (transport.responseXML) {
1968                         var info = transport.responseXML.getElementsByTagName("info-for-headlines")[0];
1969
1970                         var elems = info.getElementsByTagName("entry");
1971
1972                         for (var l = 0; l < elems.length; l++) {
1973                                 var e_id = elems[l].getAttribute("id");
1974
1975                                 if (e_id) {
1976
1977                                         var ctr = document.getElementById("HLLCTR-" + e_id);
1978
1979                                         if (ctr) {
1980                                                 ctr.innerHTML = elems[l].firstChild.nodeValue;
1981                                         }
1982                                 }
1983
1984                         }
1985
1986                 }
1987         } catch (e) {
1988                 exception_error("show_labels_in_headlines", e);
1989
1990         }
1991 }
1992
1993 function toggleHeadlineActions() {
1994         try {
1995                 var e = document.getElementById("headlineActionsBody");
1996                 var p = document.getElementById("headlineActionsDrop");
1997
1998                 if (!Element.visible(e)) {
1999                         Element.show(e);
2000                 } else {
2001                         Element.hide(e);
2002                 }
2003
2004                 e.scrollTop = 0;
2005                 e.style.left = (p.offsetLeft + 1) + "px";
2006 //              e.style.top = (p.offsetTop + p.offsetHeight - 1) + "px";
2007
2008         } catch (e) {
2009                 exception_error("toggleHeadlineActions", e);
2010         }
2011 }