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