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