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 function catchup_callback() {
  24         if (xmlhttp_rpc.readyState == 4) {
  25                 try {
  26                         debug("catchup_callback");
  27                         notify("");
  28                         all_counters_callback2(xmlhttp_rpc);
  29                         if (_catchup_callback_func) {
  30                                 setTimeout(_catchup_callback_func, 10);
  31                         }
  32                 } catch (e) {
  33                         exception_error("catchup_callback", e);
  34                 }
  35         }
  36 }
  37
  38 function catchup_callback2(transport, callback) {
  39         try {
  40                 debug("catchup_callback2 " + transport + ", " + callback);
  41                 notify("");
  42                 all_counters_callback2(transport);
  43                 if (callback) {
  44                         setTimeout(callback, 10);
  45                 }
  46         } catch (e) {
  47                 exception_error("catchup_callback2", e);
  48         }
  49 }
  50
  51 function clean_feed_selections() {
  52         try {
  53                 var feeds = document.getElementById("feedList").getElementsByTagName("LI");
  54
  55                 for (var i = 0; i < feeds.length; i++) {
  56                         if (feeds[i].id && feeds[i].id.match("FEEDR-")) {
  57                                 feeds[i].className = feeds[i].className.replace("Selected", "");
  58                         }
  59                 }
  60         } catch (e) {
  61                 exception_error("clean_feed_selections", e);
  62         }
  63 }
  64
  65 function headlines_callback2(transport, active_feed_id, is_cat, feed_cur_page) {
  66         try {
  67
  68                 debug("headlines_callback2 [page=" + feed_cur_page + "]");
  69
  70                 clean_feed_selections();
  71
  72                 setActiveFeedId(active_feed_id);
  73
  74                 if (is_cat != undefined) {
  75                         active_feed_is_cat = is_cat;
  76                 }
  77
  78                 if (!is_cat) {
  79                         var feedr = document.getElementById("FEEDR-" + active_feed_id);
  80                         if (feedr && !feedr.className.match("Selected")) {
  81                                 feedr.className = feedr.className + "Selected";
  82                         }
  83                 }
  84
  85                 var f = document.getElementById("headlines-frame");
  86                 try {
  87                         if (feed_cur_page == 0) {
  88                                 debug("resetting headlines scrollTop");
  89                                 f.scrollTop = 0;
  90                         }
  91                 } catch (e) { };
  92
  93                 if (transport.responseXML) {
  94                         var headlines = transport.responseXML.getElementsByTagName("headlines")[0];
  95                         var headlines_count_obj = transport.responseXML.getElementsByTagName("headlines-count")[0];
  96                         var headlines_unread_obj = transport.responseXML.getElementsByTagName("headlines-unread")[0];
  97                         var disable_cache_obj = transport.responseXML.getElementsByTagName("disable-cache")[0];
  98
  99                         var vgroup_last_feed_obj =  transport.responseXML.getElementsByTagName("vgroup-last-feed")[0];
 100
 101                         var headlines_count = headlines_count_obj.getAttribute("value");
 102                         var headlines_unread = headlines_unread_obj.getAttribute("value");
 103                         var disable_cache = disable_cache_obj.getAttribute("value") != "0";
 104
 105                         vgroup_last_feed = vgroup_last_feed_obj.getAttribute("value");
 106
 107                         if (headlines_count == 0) {
 108                                 _infscroll_disable = 1;
 109                         } else {
 110                                 _infscroll_disable = 0;
 111                         }
 112
 113                         var counters = transport.responseXML.getElementsByTagName("counters")[0];
 114                         var articles = transport.responseXML.getElementsByTagName("article");
 115                         var runtime_info = transport.responseXML.getElementsByTagName("runtime-info");
 116
 117                         if (feed_cur_page == 0) {
 118                                 if (headlines) {
 119                                         f.innerHTML = headlines.firstChild.nodeValue;
 120
 121                                         var cache_prefix = "";
 122
 123                                         if (is_cat) {
 124                                                 cache_prefix = "C:";
 125                                         } else {
 126                                                 cache_prefix = "F:";
 127                                         }
 128
 129                                         cache_invalidate(cache_prefix + active_feed_id);
 130
 131                                         if (!disable_cache) {
 132                                                 cache_inject(cache_prefix + active_feed_id,
 133                                                         headlines.firstChild.nodeValue, headlines_unread);
 134                                         }
 135
 136                                 } else {
 137                                         debug("headlines_callback: returned no data");
 138                                 f.innerHTML = "<div class='whiteBox'>" + __('Could not update headlines (missing XML data)') + "</div>";
 139
 140                                 }
 141                         } else {
 142                                 if (headlines) {
 143                                         if (headlines_count > 0) {
 144                                                 debug("adding some more headlines...");
 145
 146                                                 var c = document.getElementById("headlinesList");
 147
 148                                                 if (!c) {
 149                                                         c = document.getElementById("headlinesInnerContainer");
 150                                                 }
 151
 152                                                 var ids = getSelectedArticleIds2();
 153
 154                                                 c.innerHTML = c.innerHTML + headlines.firstChild.nodeValue;
 155
 156                                                 debug("restore selected ids: " + ids);
 157
 158                                                 for (var i = 0; i < ids.length; i++) {
 159                                                         markHeadline(ids[i]);
 160                                                 }
 161
 162                                                 subtoolbarSearch();
 163
 164                                         } else {
 165                                                 debug("no new headlines received");
 166                                         }
 167                                 } else {
 168                                         debug("headlines_callback: returned no data");
 169                                         notify_error("Error while trying to load more headlines");
 170                                 }
 171
 172                         }
 173
 174                         if (articles) {
 175                                 for (var i = 0; i < articles.length; i++) {
 176                                         var a_id = articles[i].getAttribute("id");
 177                                         debug("found id: " + a_id);
 178                                         cache_inject(a_id, articles[i].firstChild.nodeValue);
 179                                 }
 180                         } else {
 181                                 debug("no cached articles received");
 182                         }
 183
 184                         if (counters) {
 185                                 debug("parsing piggybacked counters: " + counters);
 186                                 parse_counters(counters, false);
 187                         } else {
 188                                 debug("counters container not found in reply");
 189                         }
 190
 191                         if (runtime_info) {
 192                                 debug("parsing runtime info: " + runtime_info[0]);
 193                                 parse_runtime_info(runtime_info[0]);
 194                         } else {
 195                                 debug("counters container not found in reply");
 196                         }
 197
 198                 } else {
 199                         debug("headlines_callback: returned no XML object");
 200                         f.innerHTML = "<div class='whiteBox'>" + __('Could not update headlines (missing XML object)') + "</div>";
 201                 }
 202
 203                 if (typeof correctPNG != 'undefined') {
 204                         correctPNG();
 205                 }
 206
 207                 if (_cdm_wd_timeout) window.clearTimeout(_cdm_wd_timeout);
 208
 209                 if (!document.getElementById("headlinesList") &&
 210                                 getInitParam("cdm_auto_catchup") == 1) {
 211                         debug("starting CDM watchdog");
 212                         _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 5000);
 213                         _cdm_wd_vishist = new Array();
 214                 } else {
 215                         debug("not in CDM mode or watchdog disabled");
 216                 }
 217
 218                 if (_tag_cdm_scroll) {
 219                         try {
 220                                 document.getElementById("headlinesInnerContainer").scrollTop = _tag_cdm_scroll;
 221                                 _tag_cdm_scroll = false;
 222                                 debug("resetting headlinesInner scrollTop");
 223
 224                         } catch (e) { }
 225                 }
 226
 227                 _feed_cur_page = feed_cur_page;
 228                 _infscroll_request_sent = 0;
 229
 230                 notify("");
 231         } catch (e) {
 232                 exception_error("headlines_callback2", e);
 233         }
 234 }
 235
 236 function render_article(article) {
 237         try {
 238                 var f = document.getElementById("content-frame");
 239                 try {
 240                         f.scrollTop = 0;
 241                 } catch (e) { };
 242
 243                 f.innerHTML = article;
 244
 245         } catch (e) {
 246                 exception_error("render_article", e);
 247         }
 248 }
 249
 250 function showArticleInHeadlines(id) {
 251
 252         try {
 253
 254                 cleanSelected("headlinesList");
 255
 256                 var crow = document.getElementById("RROW-" + id);
 257
 258                 if (!crow) return;
 259
 260                 var article_is_unread = crow.className.match("Unread");
 261
 262                 crow.className = crow.className.replace("Unread", "");
 263
 264                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
 265
 266                 var upd_img_pic = document.getElementById("FUPDPIC-" + id);
 267
 268                 var cache_prefix = "";
 269
 270                 if (activeFeedIsCat()) {
 271                         cache_prefix = "C:";
 272                 } else {
 273                         cache_prefix = "F:";
 274                 }
 275
 276                 var view_mode = false;
 277
 278                 try {
 279                         view_mode = document.forms['main_toolbar_form'].view_mode;
 280                         view_mode = view_mode[view_mode.selectedIndex].value;
 281                 } catch (e) {
 282                         exception_error("showArticleInHeadlines/viewmode", e, true);
 283                 }
 284
 285                 if (upd_img_pic && upd_img_pic.src.match("updated.png")) {
 286                         upd_img_pic.src = "images/blank_icon.gif";
 287
 288                         cache_invalidate(cache_prefix + getActiveFeedId());
 289
 290                         cache_inject(cache_prefix + getActiveFeedId(),
 291                                 document.getElementById("headlines-frame").innerHTML,
 292                                 get_feed_unread(getActiveFeedId()));
 293
 294                 } else if (article_is_unread && view_mode == "all_articles") {
 295
 296                         cache_invalidate(cache_prefix + getActiveFeedId());
 297
 298                         cache_inject(cache_prefix + getActiveFeedId(),
 299                                 document.getElementById("headlines-frame").innerHTML,
 300                                 get_feed_unread(getActiveFeedId())-1);
 301
 302                 } else if (article_is_unread) {
 303                         cache_invalidate(cache_prefix + getActiveFeedId());
 304                 }
 305
 306                 markHeadline(id);
 307
 308         } catch (e) {
 309                 exception_error("showArticleInHeadlines", e);
 310         }
 311 }
 312
 313 function article_callback2(transport, id, feed_id) {
 314         try {
 315                 debug("article_callback2 " + id);
 316
 317                 if (transport.responseXML) {
 318
 319                         active_real_feed_id = feed_id;
 320                         active_post_id = id;
 321
 322                         showArticleInHeadlines(id);
 323
 324                         var reply = transport.responseXML.firstChild.firstChild;
 325
 326                         var articles = transport.responseXML.getElementsByTagName("article");
 327
 328                         for (var i = 0; i < articles.length; i++) {
 329                                 var a_id = articles[i].getAttribute("id");
 330
 331                                 debug("found id: " + a_id);
 332
 333                                 if (a_id == active_post_id) {
 334                                         debug("active article, rendering...");
 335                                         render_article(articles[i].firstChild.nodeValue);
 336                                 }
 337
 338                                 cache_inject(a_id, articles[i].firstChild.nodeValue);
 339                         }
 340
 341                 } else {
 342                         debug("article_callback: returned no XML object");
 343                         var f = document.getElementById("content-frame");
 344                         f.innerHTML = "<div class='whiteBox'>" + __('Could not display article (missing XML object)') + "</div>";
 345                 }
 346
 347                 var date = new Date();
 348                 last_article_view = date.getTime() / 1000;
 349
 350                 if (typeof correctPNG != 'undefined') {
 351                         correctPNG();
 352                 }
 353
 354                 if (_reload_feedlist_after_view) {
 355                         setTimeout('updateFeedList(false, false)', 50);
 356                         _reload_feedlist_after_view = false;
 357                 } else {
 358                         var counters = transport.responseXML.getElementsByTagName("counters")[0];
 359
 360                         if (counters) {
 361                                 debug("parsing piggybacked counters: " + counters);
 362                                 parse_counters(counters, false);
 363                         } else {
 364                                 debug("counters container not found in reply");
 365                         }
 366                 }
 367
 368                 notify("");
 369         } catch (e) {
 370                 exception_error("article_callback2", e);
 371         }
 372 }
 373
 374 function view(id, feed_id, skip_history) {
 375
 376         try {
 377                 debug("loading article: " + id + "/" + feed_id);
 378
 379                 var cached_article = cache_find(id);
 380
 381                 debug("cache check result: " + (cached_article != false));
 382
 383                 enableHotkeys();
 384
 385                 //setActiveFeedId(feed_id);
 386
 387                 var query = "backend.php?op=view&id=" + param_escape(id) +
 388                         "&feed=" + param_escape(feed_id);
 389
 390                 var date = new Date();
 391
 392                 var neighbor_ids = getRelativePostIds(active_post_id);
 393
 394                 /* only request uncached articles */
 395
 396                 var cids_to_request = Array();
 397
 398                 for (var i = 0; i < neighbor_ids.length; i++) {
 399                         if (!cache_check(neighbor_ids[i])) {
 400                                 cids_to_request.push(neighbor_ids[i]);
 401                         }
 402                 }
 403
 404                 debug("additional ids: " + cids_to_request.toString());
 405
 406                 /* additional info for piggyback counters */
 407
 408                 if (tagsAreDisplayed()) {
 409                         query = query + "&omode=lt";
 410                 } else {
 411                         query = query + "&omode=flc";
 412                 }
 413
 414                 var date = new Date();
 415                 var timestamp = Math.round(date.getTime() / 1000);
 416                 query = query + "&ts=" + timestamp;
 417
 418                 query = query + "&cids=" + cids_to_request.toString();
 419
 420                 var crow = document.getElementById("RROW-" + id);
 421                 var article_is_unread = crow.className.match("Unread");
 422
 423                 showArticleInHeadlines(id);
 424
 425                 if (!cached_article) {
 426
 427                         notify_progress("Loading, please wait...");
 428
 429                 } else if (cached_article && article_is_unread) {
 430
 431                         query = query + "&mode=prefetch";
 432
 433                         render_article(cached_article);
 434
 435                 } else if (cached_article) {
 436
 437                         query = query + "&mode=prefetch_old";
 438                         render_article(cached_article);
 439                 }
 440
 441                 cache_expire();
 442
 443                 new Ajax.Request(query, {
 444                         onComplete: function(transport) {
 445                                 article_callback2(transport, id, feed_id);
 446                         } });
 447
 448         } catch (e) {
 449                 exception_error("view", e);
 450         }
 451 }
 452
 453 function tMark(id) {
 454         return toggleMark(id);
 455 }
 456
 457 function tPub(id) {
 458         return togglePub(id);
 459 }
 460
 461 function tMark_afh_off(effect) {
 462         try {
 463                 var elem = effect.effects[0].element;
 464
 465                 debug("tMark_afh_off : " + elem.id);
 466
 467                 if (elem) {
 468                         elem.src = elem.src.replace("mark_set", "mark_unset");
 469                         elem.alt = __("Star article");
 470                         Element.show(elem);
 471                 }
 472
 473         } catch (e) {
 474                 exception_error("tMark_afh_off", e);
 475         }
 476 }
 477
 478 function tPub_afh_off(effect) {
 479         try {
 480                 var elem = effect.effects[0].element;
 481
 482                 debug("tPub_afh_off : " + elem.id);
 483
 484                 if (elem) {
 485                         elem.src = elem.src.replace("pub_set", "pub_unset");
 486                         elem.alt = __("Publish article");
 487                         Element.show(elem);
 488                 }
 489
 490         } catch (e) {
 491                 exception_error("tPub_afh_off", e);
 492         }
 493 }
 494
 495 function toggleMark(id, client_only, no_effects) {
 496
 497         try {
 498
 499                 var query = "backend.php?op=rpc&id=" + id + "&subop=mark";
 500
 501                 query = query + "&afid=" + getActiveFeedId();
 502
 503                 if (tagsAreDisplayed()) {
 504                         query = query + "&omode=tl";
 505                 } else {
 506                         query = query + "&omode=flc";
 507                 }
 508
 509                 var mark_img = document.getElementById("FMPIC-" + id);
 510                 var vfeedu = document.getElementById("FEEDU--1");
 511                 var crow = document.getElementById("RROW-" + id);
 512
 513                 if (mark_img.src.match("mark_unset")) {
 514                         mark_img.src = mark_img.src.replace("mark_unset", "mark_set");
 515                         mark_img.alt = __("Unstar article");
 516                         query = query + "&mark=1";
 517
 518 /*                      if (vfeedu && crow.className.match("Unread")) {
 519                                 vfeedu.innerHTML = (+vfeedu.innerHTML) + 1;
 520                         } */
 521
 522                 } else {
 523                         //mark_img.src = "images/mark_unset.png";
 524                         mark_img.alt = __("Please wait...");
 525                         query = query + "&mark=0";
 526
 527 /*                      if (vfeedu && crow.className.match("Unread")) {
 528                                 vfeedu.innerHTML = (+vfeedu.innerHTML) - 1;
 529                         } */
 530
 531                         if (document.getElementById("headlinesList") && !no_effects) {
 532                                 Effect.Puff(mark_img, {duration : 0.25, afterFinish: tMark_afh_off});
 533                         } else {
 534                                 mark_img.src = mark_img.src.replace("mark_set", "mark_unset");
 535                                 mark_img.alt = __("Star article");
 536                         }
 537                 }
 538
 539 /*              var vfeedctr = document.getElementById("FEEDCTR--1");
 540                 var vfeedr = document.getElementById("FEEDR--1");
 541
 542                 if (vfeedu && vfeedctr) {
 543                         if ((+vfeedu.innerHTML) > 0) {
 544                                 if (crow.className.match("Unread") && !vfeedr.className.match("Unread")) {
 545                                         vfeedr.className = vfeedr.className + "Unread";
 546                                         vfeedctr.className = "odd";
 547                                 }
 548                         } else {
 549                                 vfeedctr.className = "invisible";
 550                                 vfeedr.className = vfeedr.className.replace("Unread", "");
 551                         }
 552                 }
 553
 554                 debug("toggle starred for aid " + id);
 555
 556                 //new Ajax.Request(query); */
 557
 558                 if (!client_only) {
 559                         debug(query);
 560
 561                         new Ajax.Request(query, {
 562                                 onComplete: function(transport) {
 563                                         all_counters_callback2(transport);
 564                                 } });
 565
 566                 }
 567
 568         } catch (e) {
 569                 exception_error("toggleMark", e);
 570         }
 571 }
 572
 573 function togglePub(id, client_only, no_effects) {
 574
 575         try {
 576
 577                 var query = "backend.php?op=rpc&id=" + id + "&subop=publ";
 578
 579                 query = query + "&afid=" + getActiveFeedId();
 580
 581                 if (tagsAreDisplayed()) {
 582                         query = query + "&omode=tl";
 583                 } else {
 584                         query = query + "&omode=flc";
 585                 }
 586
 587                 var mark_img = document.getElementById("FPPIC-" + id);
 588                 var vfeedu = document.getElementById("FEEDU--2");
 589                 var crow = document.getElementById("RROW-" + id);
 590
 591                 if (mark_img.src.match("pub_unset")) {
 592                         mark_img.src = mark_img.src.replace("pub_unset", "pub_set");
 593                         mark_img.alt = __("Unpublish article");
 594                         query = query + "&pub=1";
 595
 596 /*                      if (vfeedu && crow.className.match("Unread")) {
 597                                 vfeedu.innerHTML = (+vfeedu.innerHTML) + 1;
 598                         } */
 599
 600                 } else {
 601                         //mark_img.src = "images/pub_unset.png";
 602                         mark_img.alt = __("Please wait...");
 603                         query = query + "&pub=0";
 604
 605 /*                      if (vfeedu && crow.className.match("Unread")) {
 606                                 vfeedu.innerHTML = (+vfeedu.innerHTML) - 1;
 607                         } */
 608
 609                         if (document.getElementById("headlinesList") && !no_effects) {
 610                                 Effect.Puff(mark_img, {duration : 0.25, afterFinish: tPub_afh_off});
 611                         } else {
 612                                 mark_img.src = mark_img.src.replace("pub_set", "pub_unset");
 613                                 mark_img.alt = __("Publish article");
 614                         }
 615                 }
 616
 617 /*              var vfeedctr = document.getElementById("FEEDCTR--2");
 618                 var vfeedr = document.getElementById("FEEDR--2");
 619
 620                 if (vfeedu && vfeedctr) {
 621                         if ((+vfeedu.innerHTML) > 0) {
 622                                 if (crow.className.match("Unread") && !vfeedr.className.match("Unread")) {
 623                                         vfeedr.className = vfeedr.className + "Unread";
 624                                         vfeedctr.className = "odd";
 625                                 }
 626                         } else {
 627                                 vfeedctr.className = "invisible";
 628                                 vfeedr.className = vfeedr.className.replace("Unread", "");
 629                         }
 630                 }
 631
 632                 debug("toggle published for aid " + id);
 633
 634                 new Ajax.Request(query); */
 635
 636                 if (!client_only) {
 637                         new Ajax.Request(query, {
 638                                 onComplete: function(transport) {
 639                                         all_counters_callback2(transport);
 640                                 } });
 641                 }
 642
 643         } catch (e) {
 644
 645                 exception_error("togglePub", e);
 646         }
 647 }
 648
 649 function correctHeadlinesOffset(id) {
 650
 651         try {
 652
 653                 var hlist = document.getElementById("headlinesList");
 654                 var container = document.getElementById("headlinesInnerContainer");
 655                 var row = document.getElementById("RROW-" + id);
 656
 657                 var viewport = container.offsetHeight;
 658
 659                 var rel_offset_top = row.offsetTop - container.scrollTop;
 660                 var rel_offset_bottom = row.offsetTop + row.offsetHeight - container.scrollTop;
 661
 662                 debug("Rtop: " + rel_offset_top + " Rbtm: " + rel_offset_bottom);
 663                 debug("Vport: " + viewport);
 664
 665                 if (rel_offset_top <= 0 || rel_offset_top > viewport) {
 666                         container.scrollTop = row.offsetTop;
 667                 } else if (rel_offset_bottom > viewport) {
 668
 669                         /* doesn't properly work with Opera in some cases because
 670                                 Opera fucks up element scrolling */
 671
 672                         container.scrollTop = row.offsetTop + row.offsetHeight - viewport;
 673                 }
 674
 675         } catch (e) {
 676                 exception_error("correctHeadlinesOffset", e);
 677         }
 678
 679 }
 680
 681 function moveToPost(mode) {
 682
 683         try {
 684
 685                 var rows;
 686
 687                 if (isCdmMode()) {
 688                         rows = cdmGetVisibleArticles();
 689                 } else {
 690                         rows = getVisibleHeadlineIds();
 691                 }
 692
 693                 var prev_id = false;
 694                 var next_id = false;
 695
 696                 if (!document.getElementById('RROW-' + active_post_id)) {
 697                         active_post_id = false;
 698                 }
 699
 700                 if (active_post_id == false) {
 701                         next_id = getFirstVisibleHeadlineId();
 702                         prev_id = getLastVisibleHeadlineId();
 703                 } else {
 704                         for (var i = 0; i < rows.length; i++) {
 705                                 if (rows[i] == active_post_id) {
 706                                         prev_id = rows[i-1];
 707                                         next_id = rows[i+1];
 708                                 }
 709                         }
 710                 }
 711
 712                 if (mode == "next") {
 713                         if (next_id) {
 714                                 if (isCdmMode()) {
 715
 716                                         if (!cdmArticleIsActuallyVisible(next_id)) {
 717                                                 cdmScrollToArticleId(next_id);
 718                                         }
 719                                         cdmSelectArticles("none");
 720                                         toggleUnread(next_id, 0, true);
 721                                         toggleSelected(next_id);
 722
 723                                 } else {
 724                                         correctHeadlinesOffset(next_id);
 725                                         view(next_id, getActiveFeedId());
 726                                 }
 727                         }
 728                 }
 729
 730                 if (mode == "prev") {
 731                         if (prev_id) {
 732                                 if (isCdmMode()) {
 733                                         cdmScrollToArticleId(prev_id);
 734                                         cdmSelectArticles("none");
 735                                         toggleUnread(prev_id, 0, true);
 736                                         toggleSelected(prev_id);
 737                                 } else {
 738                                         correctHeadlinesOffset(prev_id);
 739                                         view(prev_id, getActiveFeedId());
 740                                 }
 741                         }
 742                 }
 743
 744
 745 /*      } else {
 746                         var rows = cdmGetVisibleArticles();
 747
 748                         if (mode == "next") {
 749
 750                                 for (var i = 0; i < rows.length; i++) {
 751
 752                                         if (cdmArticleIsActuallyVisible(rows[i]) ||
 753                                                         cdmArticleIsBelowViewport(rows[i])) {
 754
 755                                                 if (!cdmArticleIsActuallyVisible(rows[i])) {
 756                                                         cdmScrollToArticleId(rows[i]);
 757                                                 }
 758                                                 //setTimeout("toggleUnread(" + rows[i] + ", undefined, true)", 500);
 759                                                 cdmSelectArticles("none");
 760                                                 toggleUnread(rows[i], undefined, true);
 761                                                 toggleSelected(rows[i]);
 762
 763                                                 return;
 764                                         }
 765                                 }
 766
 767                                 cdmScrollViewport('bottom');
 768
 769                         } else if (mode == "prev") {
 770
 771                                 for (var i = 0; i < rows.length; i++) {
 772
 773                                         if (cdmArticleIsAboveViewport(rows[i]) &&
 774                                                                 !cdmArticleIsAboveViewport(rows[i+1])) {
 775
 776                                                 cdmScrollToArticleId(rows[i]);
 777                                                 //setTimeout("toggleUnread(" + rows[i] + ", undefined, true)", 500);
 778                                                 cdmSelectArticles("none");
 779                                                 toggleUnread(rows[i], undefined, true);
 780                                                 cdmSelectArticleById(rows[i]);
 781
 782                                                 break;
 783                                         }
 784                                 }
 785
 786                         }
 787
 788                 } */
 789
 790         } catch (e) {
 791                 exception_error("moveToPost", e);
 792         }
 793 }
 794
 795 function toggleSelected(id) {
 796         try {
 797
 798                 var cb = document.getElementById("RCHK-" + id);
 799
 800                 var row = document.getElementById("RROW-" + id);
 801                 if (row) {
 802                         var nc = row.className;
 803
 804                         if (!nc.match("Selected")) {
 805                                 nc = nc + "Selected";
 806                                 if (cb) {
 807                                         cb.checked = true;
 808                                 }
 809
 810                                 // In CDM basically last selected article == active article
 811                                 if (isCdmMode()) active_post_id = id;
 812                         } else {
 813                                 nc = nc.replace("Selected", "");
 814                                 if (cb) {
 815                                         cb.checked = false;
 816                                 }
 817
 818                         }
 819
 820                         row.className = nc;
 821                 }
 822         } catch (e) {
 823                 exception_error("toggleSelected", e);
 824         }
 825 }
 826
 827 function toggleUnread_afh(effect) {
 828         try {
 829
 830                 var elem = effect.element;
 831                 elem.style.backgroundColor = "";
 832
 833         } catch (e) {
 834                 exception_error("toggleUnread_afh", e);
 835         }
 836 }
 837
 838 function toggleUnread(id, cmode, effect) {
 839         try {
 840
 841                 var row = document.getElementById("RROW-" + id);
 842                 if (row) {
 843                         var nc = row.className;
 844                         var is_selected = row.className.match("Selected");
 845                         nc = nc.replace("Unread", "");
 846                         nc = nc.replace("Selected", "");
 847
 848                         // since we are removing selection from the object, uncheck
 849                         // corresponding checkbox
 850
 851                         var cb = document.getElementById("RCHK-" + id);
 852                         if (cb) {
 853                                 cb.checked = false;
 854                         }
 855
 856                         // NOTE: I'm not sure that resetting selection here is a feature -fox
 857
 858                         if (cmode == undefined || cmode == 2) {
 859                                 if (row.className.match("Unread")) {
 860                                         row.className = nc;
 861
 862                                         if (effect) {
 863                                                 new Effect.Highlight(row, {duration: 1, startcolor: "#fff7d5",
 864                                                         afterFinish: toggleUnread_afh,
 865                                                         queue: { position:'end', scope: 'TMRQ-' + id, limit: 1 } } );
 866                                         }
 867
 868                                 } else {
 869                                         row.className = nc + "Unread";
 870                                 }
 871                         } else if (cmode == 0) {
 872                                 row.className = nc;
 873
 874                                 if (effect) {
 875                                         new Effect.Highlight(row, {duration: 1, startcolor: "#fff7d5",
 876                                                 afterFinish: toggleUnread_afh,
 877                                                 queue: { position:'end', scope: 'TMRQ-' + id, limit: 1 } } );
 878                                 }
 879                         } else if (cmode == 1) {
 880                                 row.className = nc + "Unread";
 881                         }
 882
 883                         // Disable unmarking as selected for the time being (16.05.08) -fox
 884                         if (is_selected) row.className = row.className + "Selected";
 885
 886                         if (cmode == undefined) cmode = 2;
 887
 888                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
 889                                 param_escape(id) + "&cmode=" + param_escape(cmode);
 890
 891 //                      notify_progress("Loading, please wait...");
 892
 893                         new Ajax.Request(query, {
 894                                 onComplete: function(transport) {
 895                                         all_counters_callback2(transport);
 896                                 } });
 897
 898                 }
 899
 900
 901         } catch (e) {
 902                 exception_error("toggleUnread", e);
 903         }
 904 }
 905
 906 function selectionToggleUnread(cdm_mode, set_state, callback_func, no_error) {
 907         try {
 908                 var rows;
 909
 910                 if (cdm_mode) {
 911                         rows = cdmGetSelectedArticles();
 912                 } else {
 913                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 914                 }
 915
 916                 if (rows.length == 0 && !no_error) {
 917                         alert(__("No articles are selected."));
 918                         return;
 919                 }
 920
 921                 for (i = 0; i < rows.length; i++) {
 922                         var row = document.getElementById("RROW-" + rows[i]);
 923                         if (row) {
 924                                 var nc = row.className;
 925                                 nc = nc.replace("Unread", "");
 926                                 nc = nc.replace("Selected", "");
 927
 928                                 if (set_state == undefined) {
 929                                         if (row.className.match("Unread")) {
 930                                                 row.className = nc + "Selected";
 931                                         } else {
 932                                                 row.className = nc + "UnreadSelected";
 933                                         }
 934                                 }
 935
 936                                 if (set_state == false) {
 937                                         row.className = nc + "Selected";
 938                                 }
 939
 940                                 if (set_state == true) {
 941                                         row.className = nc + "UnreadSelected";
 942                                 }
 943                         }
 944                 }
 945
 946                 if (rows.length > 0) {
 947
 948                         var cmode = "";
 949
 950                         if (set_state == undefined) {
 951                                 cmode = "2";
 952                         } else if (set_state == true) {
 953                                 cmode = "1";
 954                         } else if (set_state == false) {
 955                                 cmode = "0";
 956                         }
 957
 958                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
 959                                 param_escape(rows.toString()) + "&cmode=" + cmode;
 960
 961                         notify_progress("Loading, please wait...");
 962
 963                         new Ajax.Request(query, {
 964                                 onComplete: function(transport) {
 965                                         catchup_callback2(transport, callback_func);
 966                                 } });
 967
 968                 }
 969
 970         } catch (e) {
 971                 exception_error("selectionToggleUnread", e);
 972         }
 973 }
 974
 975 function selectionToggleMarked(cdm_mode) {
 976         try {
 977
 978                 var rows;
 979
 980                 if (cdm_mode) {
 981                         rows = cdmGetSelectedArticles();
 982                 } else {
 983                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 984                 }
 985
 986                 if (rows.length == 0) {
 987                         alert(__("No articles are selected."));
 988                         return;
 989                 }
 990
 991                 for (i = 0; i < rows.length; i++) {
 992                         toggleMark(rows[i], true, true);
 993                 }
 994
 995                 if (rows.length > 0) {
 996
 997                         var query = "backend.php?op=rpc&subop=markSelected&ids=" +
 998                                 param_escape(rows.toString()) + "&cmode=2";
 999
1000                         query = query + "&afid=" + getActiveFeedId();
1001
1002 /*                      if (tagsAreDisplayed()) {
1003                                 query = query + "&omode=tl";
1004                         } else {
1005                                 query = query + "&omode=flc";
1006                         } */
1007
1008                         query = query + "&omode=lc";
1009
1010                         new Ajax.Request(query, {
1011                                 onComplete: function(transport) {
1012                                         all_counters_callback2(transport);
1013                                 } });
1014
1015                 }
1016
1017         } catch (e) {
1018                 exception_error("selectionToggleMarked", e);
1019         }
1020 }
1021
1022 function selectionTogglePublished(cdm_mode) {
1023         try {
1024
1025                 var rows;
1026
1027                 if (cdm_mode) {
1028                         rows = cdmGetSelectedArticles();
1029                 } else {
1030                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1031                 }
1032
1033                 if (rows.length == 0) {
1034                         alert(__("No articles are selected."));
1035                         return;
1036                 }
1037
1038                 for (i = 0; i < rows.length; i++) {
1039                         togglePub(rows[i], true, true);
1040                 }
1041
1042                 if (rows.length > 0) {
1043
1044                         var query = "backend.php?op=rpc&subop=publishSelected&ids=" +
1045                                 param_escape(rows.toString()) + "&cmode=2";
1046
1047                         query = query + "&afid=" + getActiveFeedId();
1048
1049 /*                      if (tagsAreDisplayed()) {
1050                                 query = query + "&omode=tl";
1051                         } else {
1052                                 query = query + "&omode=flc";
1053                         } */
1054
1055                         query = query + "&omode=lc";
1056
1057                         new Ajax.Request(query, {
1058                                 onComplete: function(transport) {
1059                                         all_counters_callback2(transport);
1060                                 } });
1061
1062                 }
1063
1064         } catch (e) {
1065                 exception_error("selectionToggleMarked", e);
1066         }
1067 }
1068
1069 function cdmGetSelectedArticles() {
1070         var sel_articles = new Array();
1071         var container = document.getElementById("headlinesInnerContainer");
1072
1073         for (i = 0; i < container.childNodes.length; i++) {
1074                 var child = container.childNodes[i];
1075
1076                 if (child.id.match("RROW-") && child.className.match("Selected")) {
1077                         var c_id = child.id.replace("RROW-", "");
1078                         sel_articles.push(c_id);
1079                 }
1080         }
1081
1082         return sel_articles;
1083 }
1084
1085 function cdmGetVisibleArticles() {
1086         var sel_articles = new Array();
1087         var container = document.getElementById("headlinesInnerContainer");
1088
1089         for (i = 0; i < container.childNodes.length; i++) {
1090                 var child = container.childNodes[i];
1091
1092                 if (child.id.match("RROW-")) {
1093                         var c_id = child.id.replace("RROW-", "");
1094                         sel_articles.push(c_id);
1095                 }
1096         }
1097
1098         return sel_articles;
1099 }
1100
1101 function cdmGetUnreadArticles() {
1102         var sel_articles = new Array();
1103         var container = document.getElementById("headlinesInnerContainer");
1104
1105         for (i = 0; i < container.childNodes.length; i++) {
1106                 var child = container.childNodes[i];
1107
1108                 if (child.id.match("RROW-") && child.className.match("Unread")) {
1109                         var c_id = child.id.replace("RROW-", "");
1110                         sel_articles.push(c_id);
1111                 }
1112         }
1113
1114         return sel_articles;
1115 }
1116
1117
1118 // mode = all,none,unread
1119 function cdmSelectArticles(mode) {
1120         var container = document.getElementById("headlinesInnerContainer");
1121
1122         for (i = 0; i < container.childNodes.length; i++) {
1123                 var child = container.childNodes[i];
1124
1125                 if (child.id.match("RROW-")) {
1126                         var aid = child.id.replace("RROW-", "");
1127
1128                         var cb = document.getElementById("RCHK-" + aid);
1129
1130                         if (mode == "all") {
1131                                 if (!child.className.match("Selected")) {
1132                                         child.className = child.className + "Selected";
1133                                         cb.checked = true;
1134                                 }
1135                         } else if (mode == "unread") {
1136                                 if (child.className.match("Unread") && !child.className.match("Selected")) {
1137                                         child.className = child.className + "Selected";
1138                                         cb.checked = true;
1139                                 }
1140                         } else {
1141                                 child.className = child.className.replace("Selected", "");
1142                                 cb.checked = false;
1143                         }
1144                 }
1145         }
1146 }
1147
1148 function catchupPage() {
1149
1150         var fn = getFeedName(getActiveFeedId(), active_feed_is_cat);
1151
1152         var str = __("Mark all visible articles in %s as read?");
1153
1154         str = str.replace("%s", fn);
1155
1156         if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1157                 return;
1158         }
1159
1160         if (document.getElementById("headlinesList")) {
1161                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, 'Unread', true);
1162                 selectionToggleUnread(false, false, 'viewCurrentFeed()', true);
1163                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
1164         } else {
1165                 cdmSelectArticles('all');
1166                 selectionToggleUnread(true, false, 'viewCurrentFeed()', true)
1167                 cdmSelectArticles('none');
1168         }
1169 }
1170
1171 function catchupSelection() {
1172
1173         try {
1174
1175                 var rows;
1176
1177                 if (document.getElementById("headlinesList")) {
1178                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1179                 } else {
1180                         rows = cdmGetSelectedArticles();
1181                 }
1182
1183                 if (rows.length == 0) {
1184                         alert(__("No articles are selected."));
1185                         return;
1186                 }
1187
1188
1189                 var fn = getFeedName(getActiveFeedId(), active_feed_is_cat);
1190
1191                 var str = __("Mark %d selected articles in %s as read?");
1192
1193                 str = str.replace("%d", rows.length);
1194                 str = str.replace("%s", fn);
1195
1196                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1197                         return;
1198                 }
1199
1200                 if (document.getElementById("headlinesList")) {
1201                         selectionToggleUnread(false, false, 'viewCurrentFeed()', true);
1202         //              selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
1203                 } else {
1204                         selectionToggleUnread(true, false, 'viewCurrentFeed()', true)
1205         //              cdmSelectArticles('none');
1206                 }
1207
1208         } catch (e) {
1209                 exception_error("catchupSelection", e);
1210         }
1211 }
1212
1213
1214 function labelFromSearch(search, search_mode, match_on, feed_id, is_cat) {
1215
1216         if (!xmlhttp_ready(xmlhttp_rpc)) {
1217                 printLockingError();
1218         }
1219
1220         var title = prompt(__("Please enter label title:"), "");
1221
1222         if (title) {
1223
1224                 var query = "backend.php?op=labelFromSearch&search=" + param_escape(search) +
1225                         "&smode=" + param_escape(search_mode) + "&match=" + param_escape(match_on) +
1226                         "&feed=" + param_escape(feed_id) + "&is_cat=" + param_escape(is_cat) +
1227                         "&title=" + param_escape(title);
1228
1229                 debug("LFS: " + query);
1230
1231                 new Ajax.Request(query, {
1232                         onComplete: function(transport) {
1233                                         dlg_frefresh_callback(transport);
1234                                 } });
1235         }
1236 }
1237
1238 function editArticleTags(id, feed_id, cdm_enabled) {
1239         _tag_active_post_id = id;
1240         _tag_active_feed_id = feed_id;
1241         _tag_active_cdm = cdm_enabled;
1242
1243         cache_invalidate(id);
1244
1245         try {
1246                 _tag_cdm_scroll = document.getElementById("headlinesInnerContainer").scrollTop;
1247         } catch (e) { }
1248         displayDlg('editArticleTags', id);
1249 }
1250
1251
1252 function tag_saved_callback(transport) {
1253         try {
1254                 debug("in tag_saved_callback");
1255
1256                 closeInfoBox();
1257                 notify("");
1258
1259                 if (tagsAreDisplayed()) {
1260                         _reload_feedlist_after_view = true;
1261                 }
1262
1263                 if (!_tag_active_cdm) {
1264                         if (active_post_id == _tag_active_post_id) {
1265                                 debug("reloading current article");
1266                                 view(_tag_active_post_id, _tag_active_feed_id);
1267                         }
1268                 } else {
1269                         debug("reloading current feed");
1270                         viewCurrentFeed();
1271                 }
1272
1273         } catch (e) {
1274                 exception_error("catchup_callback", e);
1275         }
1276 }
1277
1278 function editTagsSave() {
1279
1280         notify_progress("Saving article tags...");
1281
1282         var form = document.forms["tag_edit_form"];
1283
1284         var query = Form.serialize("tag_edit_form");
1285
1286         query = "backend.php?op=rpc&subop=setArticleTags&" + query;
1287
1288         debug(query);
1289
1290         new Ajax.Request(query, {
1291                 onComplete: function(transport) {
1292                                 tag_saved_callback(transport);
1293                         } });
1294
1295 }
1296
1297 function editTagsInsert() {
1298         try {
1299
1300                 var form = document.forms["tag_edit_form"];
1301
1302                 var found_tags = form.found_tags;
1303                 var tags_str = form.tags_str;
1304
1305                 var tag = found_tags[found_tags.selectedIndex].value;
1306
1307                 if (tags_str.value.length > 0 &&
1308                                 tags_str.value.lastIndexOf(", ") != tags_str.value.length - 2) {
1309
1310                         tags_str.value = tags_str.value + ", ";
1311                 }
1312
1313                 tags_str.value = tags_str.value + tag + ", ";
1314
1315                 found_tags.selectedIndex = 0;
1316
1317         } catch (e) {
1318                 exception_error("editTagsInsert", e);
1319         }
1320 }
1321
1322 function cdmScrollViewport(where) {
1323         debug("cdmScrollViewport: " + where);
1324
1325         var ctr = document.getElementById("headlinesInnerContainer");
1326
1327         if (!ctr) return;
1328
1329         if (where == "bottom") {
1330                 ctr.scrollTop = ctr.scrollHeight;
1331         } else {
1332                 ctr.scrollTop = where;
1333         }
1334 }
1335
1336 function cdmArticleIsBelowViewport(id) {
1337         try {
1338                 var ctr = document.getElementById("headlinesInnerContainer");
1339                 var e = document.getElementById("RROW-" + id);
1340
1341                 if (!e || !ctr) return;
1342
1343                 // article starts below viewport
1344
1345                 if (ctr.scrollTop < e.offsetTop) {
1346                         return true;
1347                 } else {
1348                         return false;
1349                 }
1350
1351         } catch (e) {
1352                 exception_error("cdmArticleIsVisible", e);
1353         }
1354 }
1355
1356 function cdmArticleIsAboveViewport(id) {
1357         try {
1358                 var ctr = document.getElementById("headlinesInnerContainer");
1359                 var e = document.getElementById("RROW-" + id);
1360
1361                 if (!e || !ctr) return;
1362
1363                 // article starts above viewport
1364
1365                 if (ctr.scrollTop > e.offsetTop + e.offsetHeight) {
1366                         return true;
1367                 } else {
1368                         return false;
1369                 }
1370
1371         } catch (e) {
1372                 exception_error("cdmArticleIsVisible", e);
1373         }
1374 }
1375
1376 function cdmScrollToArticleId(id) {
1377         try {
1378                 var ctr = document.getElementById("headlinesInnerContainer");
1379                 var e = document.getElementById("RROW-" + id);
1380
1381                 if (!e || !ctr) return;
1382
1383                 ctr.scrollTop = e.offsetTop;
1384
1385         } catch (e) {
1386                 exception_error("cdmScrollToArticleId", e);
1387         }
1388 }
1389
1390 function cdmArticleIsActuallyVisible(id) {
1391         try {
1392                 var ctr = document.getElementById("headlinesInnerContainer");
1393                 var e = document.getElementById("RROW-" + id);
1394
1395                 if (!e || !ctr) return;
1396
1397                 // article fits in viewport OR article is longer than viewport and
1398                 // its bottom is visible
1399
1400                 if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <=
1401                                 ctr.scrollTop + ctr.offsetHeight) {
1402
1403                         return true;
1404
1405                 } else if (e.offsetHeight > ctr.offsetHeight &&
1406                                 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1407                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
1408
1409                         return true;
1410
1411                 }
1412
1413                 return false;
1414
1415         } catch (e) {
1416                 exception_error("cdmArticleIsVisible", e);
1417         }
1418 }
1419
1420 function cdmWatchdog() {
1421
1422         try {
1423
1424                 var ctr = document.getElementById("headlinesInnerContainer");
1425
1426                 if (!ctr) return;
1427
1428                 var ids = new Array();
1429
1430                 var e = ctr.firstChild;
1431
1432                 while (e) {
1433                         if (e.className && e.className == "cdmArticleUnread" && e.id &&
1434                                         e.id.match("RROW-")) {
1435
1436                                 // article fits in viewport OR article is longer than viewport and
1437                                 // its bottom is visible
1438
1439                                 if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <=
1440                                                 ctr.scrollTop + ctr.offsetHeight) {
1441
1442 //                                      debug(e.id + " is visible " + e.offsetTop + "." +
1443 //                                              (e.offsetTop + e.offsetHeight) + " vs " + ctr.scrollTop + "." +
1444 //                                              (ctr.scrollTop + ctr.offsetHeight));
1445
1446                                         ids.push(e.id.replace("RROW-", ""));
1447
1448                                 } else if (e.offsetHeight > ctr.offsetHeight &&
1449                                                 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1450                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
1451
1452                                         ids.push(e.id.replace("RROW-", ""));
1453
1454                                 }
1455
1456                                 // method 2: article bottom is visible and is in upper 1/2 of the viewport
1457
1458 /*                              if (e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1459                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight/2) {
1460
1461                                         ids.push(e.id.replace("RROW-", ""));
1462
1463                                 } */
1464
1465                         }
1466
1467                         e = e.nextSibling;
1468                 }
1469
1470                 debug("cdmWatchdog, ids= " + ids.toString());
1471
1472                 if (ids.length > 0) {
1473
1474                         for (var i = 0; i < ids.length; i++) {
1475                                 var e = document.getElementById("RROW-" + ids[i]);
1476                                 if (e) {
1477                                         e.className = e.className.replace("Unread", "");
1478                                 }
1479                         }
1480
1481                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
1482                                 param_escape(ids.toString()) + "&cmode=0";
1483
1484                         new Ajax.Request(query, {
1485                                 onComplete: function(transport) {
1486                                         all_counters_callback2(transport);
1487                                 } });
1488
1489                 }
1490
1491                 _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 4000);
1492
1493         } catch (e) {
1494                 exception_error("cdmWatchdog", e);
1495         }
1496
1497 }
1498
1499
1500 function cache_inject(id, article, param) {
1501         if (!cache_check_param(id, param)) {
1502                 debug("cache_article: miss: " + id + " [p=" + param + "]");
1503
1504                 var cache_obj = new Array();
1505
1506                 cache_obj["id"] = id;
1507                 cache_obj["data"] = article;
1508                 cache_obj["param"] = param;
1509
1510                 article_cache.push(cache_obj);
1511
1512         } else {
1513                 debug("cache_article: hit: " + id + " [p=" + param + "]");
1514         }
1515 }
1516
1517 function cache_find(id) {
1518         for (var i = 0; i < article_cache.length; i++) {
1519                 if (article_cache[i]["id"] == id) {
1520                         return article_cache[i]["data"];
1521                 }
1522         }
1523         return false;
1524 }
1525
1526 function cache_find_param(id, param) {
1527         for (var i = 0; i < article_cache.length; i++) {
1528                 if (article_cache[i]["id"] == id && article_cache[i]["param"] == param) {
1529                         return article_cache[i]["data"];
1530                 }
1531         }
1532         return false;
1533 }
1534
1535 function cache_check(id) {
1536         for (var i = 0; i < article_cache.length; i++) {
1537                 if (article_cache[i]["id"] == id) {
1538                         return true;
1539                 }
1540         }
1541         return false;
1542 }
1543
1544 function cache_check_param(id, param) {
1545         for (var i = 0; i < article_cache.length; i++) {
1546
1547 //              debug("cache_check_param " + article_cache[i]["id"] + ":" +
1548 //                      article_cache[i]["param"] + " vs " + id + ":" + param);
1549
1550                 if (article_cache[i]["id"] == id && article_cache[i]["param"] == param) {
1551                         return true;
1552                 }
1553         }
1554         return false;
1555 }
1556
1557 function cache_expire() {
1558         while (article_cache.length > 20) {
1559                 article_cache.shift();
1560         }
1561 }
1562
1563 function cache_empty() {
1564         article_cache = new Array();
1565 }
1566
1567 function cache_invalidate(id) {
1568         var i = 0
1569
1570         try {
1571
1572                 while (i < article_cache.length) {
1573                         if (article_cache[i]["id"] == id) {
1574                                 debug("cache_invalidate: removed id " + id);
1575                                 article_cache.splice(i, 1);
1576                                 return true;
1577                         }
1578                         i++;
1579                 }
1580                 debug("cache_invalidate: id not found: " + id);
1581                 return false;
1582         } catch (e) {
1583                 exception_error("cache_invalidate", e);
1584         }
1585 }
1586
1587 function getActiveArticleId() {
1588         return active_post_id;
1589 }
1590
1591 function cdmClicked(elem) {
1592         try {
1593                 if (elem.id && elem.id.match("RROW-")) {
1594                         var id = elem.id.replace("RROW-", "");
1595                         active_post_id = id;
1596
1597                         cdmSelectArticles("none");
1598                         toggleUnread(id, 0, true);
1599                         toggleSelected(id);
1600
1601                 }
1602         } catch (e) {
1603                 exception_error("cdmMouseIn", e);
1604         }
1605 }
1606
1607 function preload_article_callback(transport) {
1608         try {
1609                 if (transport.responseXML) {
1610                         var articles = transport.responseXML.getElementsByTagName("article");
1611
1612                         for (var i = 0; i < articles.length; i++) {
1613                                 var id = articles[i].getAttribute("id");
1614                                 if (!cache_find(id)) {
1615                                         cache_inject(id, articles[i].firstChild.nodeValue);
1616                                         debug("preloaded article: " + id);
1617                                 }
1618                         }
1619                 }
1620         } catch (e) {
1621                 exception_error("preload_article_callback", e);
1622         }
1623 }
1624
1625 function preloadArticleUnderPointer(id) {
1626         try {
1627                 if (post_under_pointer == id && !cache_find(id)) {
1628
1629                         debug("trying to preload article " + id);
1630
1631                         var neighbor_ids = getRelativePostIds(id, 1);
1632
1633                         /* only request uncached articles */
1634
1635                         var cids_to_request = Array();
1636
1637                         for (var i = 0; i < neighbor_ids.length; i++) {
1638                                 if (!cache_check(neighbor_ids[i])) {
1639                                         cids_to_request.push(neighbor_ids[i]);
1640                                 }
1641                         }
1642                         debug("additional ids: " + cids_to_request.toString());
1643
1644                         cids_to_request.push(id);
1645
1646                         var query = "backend.php?op=rpc&subop=getArticles&ids=" +
1647                                 cids_to_request.toString();
1648                         new Ajax.Request(query, {
1649                                 onComplete: function(transport) {
1650                                         preload_article_callback(transport);
1651                         } });
1652                 }
1653         } catch (e) {
1654                 exception_error("preloadArticleUnderPointer", e);
1655         }
1656 }
1657
1658 function postMouseIn(id) {
1659         try {
1660                 if (post_under_pointer != id) {
1661                         post_under_pointer = id;
1662                         if (!isCdmMode()) {
1663                                 window.setTimeout("preloadArticleUnderPointer(" + id + ")", 250);
1664                         }
1665                 }
1666
1667         } catch (e) {
1668                 exception_error("postMouseIn", e);
1669         }
1670 }
1671
1672 function postMouseOut(id) {
1673         try {
1674                 post_under_pointer = false;
1675         } catch (e) {
1676                 exception_error("postMouseOut", e);
1677         }
1678 }
1679
1680 function cdmMouseIn(elem) {
1681 /*      try {
1682                 if (elem.id && elem.id.match("RROW-")) {
1683                         var id = elem.id.replace("RROW-", "");
1684                         active_post_id = id;
1685                 }
1686         } catch (e) {
1687                 exception_error("cdmMouseIn", e);
1688         } */
1689 }
1690
1691 function cdmMouseOut(elem) {
1692         //active_post_id = false;
1693 }
1694
1695 function headlines_scroll_handler() {
1696         try {
1697
1698                 var e = document.getElementById("headlinesInnerContainer");
1699
1700                 // don't do infinite scrolling when Limit == All
1701
1702                 var toolbar_form = document.forms["main_toolbar_form"];
1703
1704                 var limit = toolbar_form.limit[toolbar_form.limit.selectedIndex];
1705                 if (limit.value != 0) {
1706
1707                         debug((e.scrollTop + e.offsetHeight) + " vs " + e.scrollHeight + " dis? " +
1708                                 _infscroll_disable);
1709
1710                         if (e.scrollTop + e.offsetHeight > e.scrollHeight - 100) {
1711                                 if (!_infscroll_disable) {
1712                                         debug("more cowbell!");
1713                                         viewNextFeedPage();
1714                                 }
1715                         }
1716                 }
1717
1718         } catch (e) {
1719                 exception_error("headlines_scroll_handler", e);
1720         }
1721 }
1722
1723 function catchupRelativeToArticle(below) {
1724
1725         try {
1726
1727                 if (!xmlhttp_ready(xmlhttp_rpc)) {
1728                         printLockingError();
1729                 }
1730
1731                 if (!getActiveArticleId()) {
1732                         alert(__("No article is selected."));
1733                         return;
1734                 }
1735
1736                 var visible_ids;
1737
1738                 if (document.getElementById("headlinesList")) {
1739                         visible_ids = getVisibleHeadlineIds();
1740                 } else {
1741                         visible_ids = cdmGetVisibleArticles();
1742                 }
1743
1744                 var ids_to_mark = new Array();
1745
1746                 if (!below) {
1747                         for (var i = 0; i < visible_ids.length; i++) {
1748                                 if (visible_ids[i] != getActiveArticleId()) {
1749                                         var e = document.getElementById("RROW-" + visible_ids[i]);
1750
1751                                         if (e && e.className.match("Unread")) {
1752                                                 ids_to_mark.push(visible_ids[i]);
1753                                         }
1754                                 } else {
1755                                         break;
1756                                 }
1757                         }
1758                 } else {
1759                         for (var i = visible_ids.length-1; i >= 0; i--) {
1760                                 if (visible_ids[i] != getActiveArticleId()) {
1761                                         var e = document.getElementById("RROW-" + visible_ids[i]);
1762
1763                                         if (e && e.className.match("Unread")) {
1764                                                 ids_to_mark.push(visible_ids[i]);
1765                                         }
1766                                 } else {
1767                                         break;
1768                                 }
1769                         }
1770                 }
1771
1772                 if (ids_to_mark.length == 0) {
1773                         alert(__("No articles found to mark"));
1774                 } else {
1775                         var msg = __("Mark %d article(s) as read?").replace("%d", ids_to_mark.length);
1776
1777                         if (confirm(msg)) {
1778
1779                                 for (var i = 0; i < ids_to_mark.length; i++) {
1780                                         var e = document.getElementById("RROW-" + ids_to_mark[i]);
1781                                         e.className = e.className.replace("Unread", "");
1782                                 }
1783
1784                                 var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
1785                                         param_escape(ids_to_mark.toString()) + "&cmode=0";
1786
1787                                 new Ajax.Request(query, {
1788                                         onComplete: function(transport) {
1789                                                 catchup_callback2(transport);
1790                                         } });
1791
1792                         }
1793                 }
1794
1795         } catch (e) {
1796                 exception_error("catchupRelativeToArticle", e);
1797         }
1798 }
1799
1800 function cdmExpandArticle(a_id) {
1801         try {
1802                 var id = 'CICD-' + a_id;
1803
1804                 Effect.Appear(id, {duration : 0.5,
1805                         beforeStart: function(effect) {
1806                                 var h_id = 'CICH-' + a_id;
1807                                 var h_elem = document.getElementById(h_id);
1808                                 if (h_elem) { h_elem.style.display = "none"; }
1809
1810                                 toggleUnread(a_id, 0);
1811                         }});
1812
1813
1814         } catch (e) {
1815                 exception_error("appearBlockElementF", e);
1816         }
1817
1818 }
1819
1820 function fixHeadlinesOrder(ids) {
1821         try {
1822                 for (var i = 0; i < ids.length; i++) {
1823                         var e = document.getElementById("RROW-" + ids[i]);
1824
1825                         if (e) {
1826                                 if (i % 2 == 0) {
1827                                         e.className = e.className.replace("even", "odd");
1828                                 } else {
1829                                         e.className = e.className.replace("odd", "even");
1830                                 }
1831                         }
1832                 }
1833         } catch (e) {
1834                 exception_error("fixHeadlinesOrder", e);
1835         }
1836 }
1837
1838 function subtoolbarSearch() {
1839
1840         try {
1841
1842                 var q = document.getElementById("subtoolbar_search_box");
1843
1844                 if (!q) return;
1845
1846                 q = q.value.toUpperCase();
1847
1848                 var ids = false;
1849                 var vis_ids = new Array();
1850
1851                 if (document.getElementById("headlinesList")) {
1852                         ids = getVisibleHeadlineIds();
1853                 } else {
1854                         ids = cdmGetVisibleArticles();
1855                 }
1856
1857                 for (var i = 0; i < ids.length; i++) {
1858                         var title = document.getElementById("RTITLE-" + ids[i]);
1859
1860                         if (title) {
1861                                 if (!title.innerHTML.toUpperCase().match(q)) {
1862                                         Element.hide(document.getElementById("RROW-" + ids[i]));
1863                                 } else {
1864                                         Element.show(document.getElementById("RROW-" + ids[i]));
1865                                         vis_ids.push(ids[i]);
1866                                 }
1867                         }
1868                 }
1869
1870                 fixHeadlinesOrder(vis_ids);
1871
1872         } catch (e) {
1873                 exception_error("subtoolbarSearch", e);
1874         }
1875 }
1876
1877 function getArticleUnderPointer() {
1878         return post_under_pointer;
1879 }