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, active_feed_is_cat, feed_cur_page) {
  49         debug("headlines_callback2 [page=" + feed_cur_page + "]");
  50
  51         var f = document.getElementById("headlines-frame");
  52         try {
  53                 if (feed_cur_page == 0) {
  54                         debug("resetting headlines scrollTop");
  55                         f.scrollTop = 0;
  56                 }
  57         } catch (e) { };
  58
  59         if (transport.responseXML) {
  60                 var headlines = transport.responseXML.getElementsByTagName("headlines")[0];
  61                 var headlines_count_obj = transport.responseXML.getElementsByTagName("headlines-count")[0];
  62
  63                 var headlines_count = headlines_count_obj.getAttribute("value");
  64
  65                 if (headlines_count == 0) _infscroll_disable = 1;
  66
  67                 var counters = transport.responseXML.getElementsByTagName("counters")[0];
  68                 var articles = transport.responseXML.getElementsByTagName("article");
  69                 var runtime_info = transport.responseXML.getElementsByTagName("runtime-info");
  70
  71                 if (feed_cur_page == 0) {
  72                         if (headlines) {
  73                                 f.innerHTML = headlines.firstChild.nodeValue;
  74                         } else {
  75                                 debug("headlines_callback: returned no data");
  76                         f.innerHTML = "<div class='whiteBox'>" + __('Could not update headlines (missing XML data)') + "</div>";
  77
  78                         }
  79                 } else {
  80                         if (headlines) {
  81                                 if (headlines_count > 0) {
  82                                         debug("adding some more headlines...");
  83
  84                                         var c = document.getElementById("headlinesList");
  85
  86                                         if (!c) {
  87                                                 c = document.getElementById("headlinesInnerContainer");
  88                                         }
  89
  90                                         c.innerHTML = c.innerHTML + headlines.firstChild.nodeValue;
  91                                 } else {
  92                                         debug("no new headlines received");
  93                                 }
  94                         } else {
  95                                 debug("headlines_callback: returned no data");
  96                                 notify_error("Error while trying to load more headlines");
  97                         }
  98
  99                 }
 100
 101                 if (articles) {
 102                         for (var i = 0; i < articles.length; i++) {
 103                                 var a_id = articles[i].getAttribute("id");
 104                                 debug("found id: " + a_id);
 105                                 cache_inject(a_id, articles[i].firstChild.nodeValue);
 106                         }
 107                 } else {
 108                         debug("no cached articles received");
 109                 }
 110
 111                 if (counters) {
 112                         debug("parsing piggybacked counters: " + counters);
 113                         parse_counters(counters, false);
 114                 } else {
 115                         debug("counters container not found in reply");
 116                 }
 117
 118                 if (runtime_info) {
 119                         debug("parsing runtime info: " + runtime_info[0]);
 120                         parse_runtime_info(runtime_info[0]);
 121                 } else {
 122                         debug("counters container not found in reply");
 123                 }
 124
 125         } else {
 126                 debug("headlines_callback: returned no XML object");
 127                 f.innerHTML = "<div class='whiteBox'>" + __('Could not update headlines (missing XML object)') + "</div>";
 128         }
 129
 130         if (typeof correctPNG != 'undefined') {
 131                 correctPNG();
 132         }
 133
 134         if (_cdm_wd_timeout) window.clearTimeout(_cdm_wd_timeout);
 135
 136         if (!document.getElementById("headlinesList") &&
 137                         getInitParam("cdm_auto_catchup") == 1) {
 138                 debug("starting CDM watchdog");
 139                 _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 5000);
 140                 _cdm_wd_vishist = new Array();
 141         } else {
 142                 debug("not in CDM mode or watchdog disabled");
 143         }
 144
 145         if (_tag_cdm_scroll) {
 146                 try {
 147                         document.getElementById("headlinesInnerContainer").scrollTop = _tag_cdm_scroll;
 148                         _tag_cdm_scroll = false;
 149                         debug("resetting headlinesInner scrollTop");
 150
 151                 } catch (e) { }
 152         }
 153
 154         _feed_cur_page = feed_cur_page;
 155
 156         notify("");
 157 }
 158
 159 function render_article(article) {
 160         try {
 161                 var f = document.getElementById("content-frame");
 162                 try {
 163                         f.scrollTop = 0;
 164                 } catch (e) { };
 165
 166                 f.innerHTML = article;
 167
 168         } catch (e) {
 169                 exception_error("render_article", e);
 170         }
 171 }
 172
 173 function article_callback() {
 174         if (xmlhttp.readyState == 4) {
 175                 debug("article_callback");
 176
 177                 try {
 178                         if (xmlhttp.responseXML) {
 179                                 var reply = xmlhttp.responseXML.firstChild.firstChild;
 180
 181                                 var articles = xmlhttp.responseXML.getElementsByTagName("article");
 182
 183                                 for (var i = 0; i < articles.length; i++) {
 184                                         var a_id = articles[i].getAttribute("id");
 185
 186                                         debug("found id: " + a_id);
 187
 188                                         if (a_id == active_post_id) {
 189                                                 debug("active article, rendering...");
 190                                                 render_article(articles[i].firstChild.nodeValue);
 191                                         }
 192
 193                                         cache_inject(a_id, articles[i].firstChild.nodeValue);
 194                                 }
 195
 196                         } else {
 197                                 debug("article_callback: returned no XML object");
 198                                 var f = document.getElementById("content-frame");
 199                                 f.innerHTML = "<div class='whiteBox'>" + __('Could not display article (missing XML object)') + "</div>";
 200                         }
 201                 } catch (e) {
 202                         exception_error("article_callback", e);
 203                 }
 204
 205                 var date = new Date();
 206                 last_article_view = date.getTime() / 1000;
 207
 208                 if (typeof correctPNG != 'undefined') {
 209                         correctPNG();
 210                 }
 211
 212                 if (_reload_feedlist_after_view) {
 213                         setTimeout('updateFeedList(false, false)', 50);
 214                         _reload_feedlist_after_view = false;
 215                 } else {
 216                         var counters = xmlhttp.responseXML.getElementsByTagName("counters")[0];
 217
 218                         if (counters) {
 219                                 debug("parsing piggybacked counters: " + counters);
 220                                 parse_counters(counters, false);
 221                         } else {
 222                                 debug("counters container not found in reply");
 223                         }
 224                 }
 225
 226                 notify("");
 227         }
 228 }
 229
 230 function view(id, feed_id, skip_history) {
 231
 232         try {
 233                 debug("loading article: " + id + "/" + feed_id);
 234
 235                 active_real_feed_id = feed_id;
 236
 237                 var cached_article = cache_find(id);
 238
 239                 debug("cache check result: " + (cached_article != false));
 240
 241                 enableHotkeys();
 242
 243                 //setActiveFeedId(feed_id);
 244
 245                 var query = "backend.php?op=view&id=" + param_escape(id) +
 246                         "&feed=" + param_escape(feed_id);
 247
 248                 var date = new Date();
 249
 250                 if (!xmlhttp_ready(xmlhttp) && last_article_view < date.getTime() / 1000 - 15) {
 251                         debug("<b>xmlhttp seems to be stuck at view, aborting</b>");
 252                         xmlhttp.abort();
 253                         if (is_safari()) {
 254                                 debug("trying alternative reset method for Safari");
 255                                 xmlhttp = Ajax.getTransport();
 256                         }
 257                 }
 258
 259                 if (xmlhttp_ready(xmlhttp)) {
 260
 261                         active_post_id = id;
 262
 263                         cleanSelected("headlinesList");
 264
 265                         var crow = document.getElementById("RROW-" + active_post_id);
 266
 267                         var article_is_unread = crow.className.match("Unread");
 268                         debug("article is unread: " + article_is_unread);
 269
 270                         crow.className = crow.className.replace("Unread", "");
 271
 272                         var upd_img_pic = document.getElementById("FUPDPIC-" + active_post_id);
 273
 274                         if (upd_img_pic) {
 275                                 upd_img_pic.src = "images/blank_icon.gif";
 276                         }
 277
 278                         selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
 279                         markHeadline(active_post_id);
 280
 281                         var neighbor_ids = getRelativePostIds(active_post_id);
 282
 283                         /* only request uncached articles */
 284
 285                         var cids_to_request = Array();
 286
 287                         for (var i = 0; i < neighbor_ids.length; i++) {
 288                                 if (!cache_check(neighbor_ids[i])) {
 289                                         cids_to_request.push(neighbor_ids[i]);
 290                                 }
 291                         }
 292
 293                         debug("additional ids: " + cids_to_request.toString());
 294
 295                         /* additional info for piggyback counters */
 296
 297                         if (tagsAreDisplayed()) {
 298                                 query = query + "&omode=lt";
 299                         } else {
 300                                 query = query + "&omode=flc";
 301                         }
 302
 303                         var date = new Date();
 304                         var timestamp = Math.round(date.getTime() / 1000);
 305                         query = query + "&ts=" + timestamp;
 306
 307                         query = query + "&cids=" + cids_to_request.toString();
 308
 309                         if (!cached_article) {
 310
 311                                 notify_progress("Loading, please wait...");
 312
 313                                 debug(query);
 314
 315                                 xmlhttp.open("GET", query, true);
 316                                 xmlhttp.onreadystatechange=article_callback;
 317                                 xmlhttp.send(null);
 318                         } else if (cached_article && article_is_unread) {
 319
 320                                 query = query + "&mode=prefetch";
 321
 322                                 debug(query);
 323
 324                                 xmlhttp.open("GET", query, true);
 325                                 xmlhttp.onreadystatechange=article_callback;
 326                                 xmlhttp.send(null);
 327
 328                                 render_article(cached_article);
 329
 330                         } else if (cached_article) {
 331
 332                                 query = query + "&mode=prefetch_old";
 333
 334                                 debug(query);
 335
 336                                 xmlhttp.open("GET", query, true);
 337                                 xmlhttp.onreadystatechange=article_callback;
 338                                 xmlhttp.send(null);
 339
 340                                 render_article(cached_article);
 341
 342                         }
 343
 344                         cache_expire();
 345
 346                 } else {
 347                         debug("xmlhttp busy (@view)");
 348                         printLockingError();
 349                 }
 350
 351         } catch (e) {
 352                 exception_error("view", e);
 353         }
 354 }
 355
 356 function tMark(id) {
 357         return toggleMark(id);
 358 }
 359
 360 function tPub(id) {
 361         return togglePub(id);
 362 }
 363
 364 function tMark_afh_off(effect) {
 365         try {
 366                 var elem = effect.effects[0].element;
 367
 368                 debug("tMark_afh_off : " + elem.id);
 369
 370                 if (elem) {
 371                         elem.src = elem.src.replace("mark_set", "mark_unset");
 372                         elem.alt = __("Star article");
 373                         Element.show(elem);
 374                 }
 375
 376         } catch (e) {
 377                 exception_error("tMark_afh_off", e);
 378         }
 379 }
 380
 381 function tPub_afh_off(effect) {
 382         try {
 383                 var elem = effect.effects[0].element;
 384
 385                 debug("tPub_afh_off : " + elem.id);
 386
 387                 if (elem) {
 388                         elem.src = elem.src.replace("pub_set", "pub_unset");
 389                         elem.alt = __("Publish article");
 390                         Element.show(elem);
 391                 }
 392
 393         } catch (e) {
 394                 exception_error("tPub_afh_off", e);
 395         }
 396 }
 397
 398 function toggleMark(id, client_only, no_effects) {
 399
 400         try {
 401
 402                 var query = "backend.php?op=rpc&id=" + id + "&subop=mark";
 403
 404                 query = query + "&afid=" + getActiveFeedId();
 405
 406                 if (tagsAreDisplayed()) {
 407                         query = query + "&omode=tl";
 408                 } else {
 409                         query = query + "&omode=flc";
 410                 }
 411
 412                 var mark_img = document.getElementById("FMPIC-" + id);
 413                 var vfeedu = document.getElementById("FEEDU--1");
 414                 var crow = document.getElementById("RROW-" + id);
 415
 416                 if (mark_img.src.match("mark_unset")) {
 417                         mark_img.src = mark_img.src.replace("mark_unset", "mark_set");
 418                         mark_img.alt = __("Unstar article");
 419                         query = query + "&mark=1";
 420
 421 /*                      if (vfeedu && crow.className.match("Unread")) {
 422                                 vfeedu.innerHTML = (+vfeedu.innerHTML) + 1;
 423                         } */
 424
 425                 } else {
 426                         //mark_img.src = "images/mark_unset.png";
 427                         mark_img.alt = __("Please wait...");
 428                         query = query + "&mark=0";
 429
 430 /*                      if (vfeedu && crow.className.match("Unread")) {
 431                                 vfeedu.innerHTML = (+vfeedu.innerHTML) - 1;
 432                         } */
 433
 434                         if (document.getElementById("headlinesList") && !no_effects) {
 435                                 Effect.Puff(mark_img, {duration : 0.25, afterFinish: tMark_afh_off});
 436                         } else {
 437                                 mark_img.src = mark_img.src.replace("mark_set", "mark_unset");
 438                                 mark_img.alt = __("Star article");
 439                         }
 440                 }
 441
 442 /*              var vfeedctr = document.getElementById("FEEDCTR--1");
 443                 var vfeedr = document.getElementById("FEEDR--1");
 444
 445                 if (vfeedu && vfeedctr) {
 446                         if ((+vfeedu.innerHTML) > 0) {
 447                                 if (crow.className.match("Unread") && !vfeedr.className.match("Unread")) {
 448                                         vfeedr.className = vfeedr.className + "Unread";
 449                                         vfeedctr.className = "odd";
 450                                 }
 451                         } else {
 452                                 vfeedctr.className = "invisible";
 453                                 vfeedr.className = vfeedr.className.replace("Unread", "");
 454                         }
 455                 }
 456
 457                 debug("toggle starred for aid " + id);
 458
 459                 //new Ajax.Request(query); */
 460
 461                 if (!client_only) {
 462                         debug(query);
 463
 464                         new Ajax.Request(query, {
 465                                 onComplete: function(transport) {
 466                                         all_counters_callback2(transport);
 467                                 } });
 468
 469                 }
 470
 471         } catch (e) {
 472                 exception_error("toggleMark", e);
 473         }
 474 }
 475
 476 function togglePub(id, client_only, no_effects) {
 477
 478         try {
 479
 480                 var query = "backend.php?op=rpc&id=" + id + "&subop=publ";
 481
 482                 query = query + "&afid=" + getActiveFeedId();
 483
 484                 if (tagsAreDisplayed()) {
 485                         query = query + "&omode=tl";
 486                 } else {
 487                         query = query + "&omode=flc";
 488                 }
 489
 490                 var mark_img = document.getElementById("FPPIC-" + id);
 491                 var vfeedu = document.getElementById("FEEDU--2");
 492                 var crow = document.getElementById("RROW-" + id);
 493
 494                 if (mark_img.src.match("pub_unset")) {
 495                         mark_img.src = mark_img.src.replace("pub_unset", "pub_set");
 496                         mark_img.alt = __("Unpublish article");
 497                         query = query + "&pub=1";
 498
 499 /*                      if (vfeedu && crow.className.match("Unread")) {
 500                                 vfeedu.innerHTML = (+vfeedu.innerHTML) + 1;
 501                         } */
 502
 503                 } else {
 504                         //mark_img.src = "images/pub_unset.png";
 505                         mark_img.alt = __("Please wait...");
 506                         query = query + "&pub=0";
 507
 508 /*                      if (vfeedu && crow.className.match("Unread")) {
 509                                 vfeedu.innerHTML = (+vfeedu.innerHTML) - 1;
 510                         } */
 511
 512                         if (document.getElementById("headlinesList") && !no_effects) {
 513                                 Effect.Puff(mark_img, {duration : 0.25, afterFinish: tPub_afh_off});
 514                         } else {
 515                                 mark_img.src = mark_img.src.replace("pub_set", "pub_unset");
 516                                 mark_img.alt = __("Publish article");
 517                         }
 518                 }
 519
 520 /*              var vfeedctr = document.getElementById("FEEDCTR--2");
 521                 var vfeedr = document.getElementById("FEEDR--2");
 522
 523                 if (vfeedu && vfeedctr) {
 524                         if ((+vfeedu.innerHTML) > 0) {
 525                                 if (crow.className.match("Unread") && !vfeedr.className.match("Unread")) {
 526                                         vfeedr.className = vfeedr.className + "Unread";
 527                                         vfeedctr.className = "odd";
 528                                 }
 529                         } else {
 530                                 vfeedctr.className = "invisible";
 531                                 vfeedr.className = vfeedr.className.replace("Unread", "");
 532                         }
 533                 }
 534
 535                 debug("toggle published for aid " + id);
 536
 537                 new Ajax.Request(query); */
 538
 539                 if (!client_only) {
 540                         new Ajax.Request(query, {
 541                                 onComplete: function(transport) {
 542                                         all_counters_callback2(transport);
 543                                 } });
 544                 }
 545
 546         } catch (e) {
 547
 548                 exception_error("togglePub", e);
 549         }
 550 }
 551
 552 function correctHeadlinesOffset(id) {
 553
 554         try {
 555
 556                 var hlist = document.getElementById("headlinesList");
 557                 var container = document.getElementById("headlinesInnerContainer");
 558                 var row = document.getElementById("RROW-" + id);
 559
 560                 var viewport = container.offsetHeight;
 561
 562                 var rel_offset_top = row.offsetTop - container.scrollTop;
 563                 var rel_offset_bottom = row.offsetTop + row.offsetHeight - container.scrollTop;
 564
 565                 debug("Rtop: " + rel_offset_top + " Rbtm: " + rel_offset_bottom);
 566                 debug("Vport: " + viewport);
 567
 568                 if (rel_offset_top <= 0 || rel_offset_top > viewport) {
 569                         container.scrollTop = row.offsetTop;
 570                 } else if (rel_offset_bottom > viewport) {
 571
 572                         /* doesn't properly work with Opera in some cases because
 573                                 Opera fucks up element scrolling */
 574
 575                         container.scrollTop = row.offsetTop + row.offsetHeight - viewport;
 576                 }
 577
 578         } catch (e) {
 579                 exception_error("correctHeadlinesOffset", e);
 580         }
 581
 582 }
 583
 584 function moveToPost(mode) {
 585
 586         // check for combined mode
 587         if (!document.getElementById("headlinesList"))
 588                 return;
 589
 590         var rows = getVisibleHeadlineIds();
 591
 592         var prev_id = false;
 593         var next_id = false;
 594
 595         if (!document.getElementById('RROW-' + active_post_id)) {
 596                 active_post_id = false;
 597         }
 598
 599         if (active_post_id == false) {
 600                 next_id = getFirstVisibleHeadlineId();
 601                 prev_id = getLastVisibleHeadlineId();
 602         } else {
 603                 for (var i = 0; i < rows.length; i++) {
 604                         if (rows[i] == active_post_id) {
 605                                 prev_id = rows[i-1];
 606                                 next_id = rows[i+1];
 607                         }
 608                 }
 609         }
 610
 611         if (mode == "next") {
 612                 if (next_id) {
 613                         correctHeadlinesOffset(next_id);
 614                         view(next_id, getActiveFeedId());
 615                 }
 616         }
 617
 618         if (mode == "prev") {
 619                 if (prev_id) {
 620                         correctHeadlinesOffset(prev_id);
 621                         view(prev_id, getActiveFeedId());
 622                 }
 623         }
 624 }
 625
 626 function toggleUnread(id, cmode) {
 627         try {
 628
 629                 var row = document.getElementById("RROW-" + id);
 630                 if (row) {
 631                         var nc = row.className;
 632                         nc = nc.replace("Unread", "");
 633                         nc = nc.replace("Selected", "");
 634
 635                         if (row.className.match("Unread")) {
 636                                 row.className = nc;
 637                         } else {
 638                                 row.className = nc + "Unread";
 639                         }
 640
 641                         if (!cmode) cmode = 2;
 642
 643                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
 644                                 param_escape(id) + "&cmode=" + param_escape(cmode);
 645
 646 //                      notify_progress("Loading, please wait...");
 647
 648                         new Ajax.Request(query, {
 649                                 onComplete: function(transport) {
 650                                         all_counters_callback2(transport);
 651                                 } });
 652
 653                 }
 654
 655
 656         } catch (e) {
 657                 exception_error("toggleUnread", e);
 658         }
 659 }
 660
 661 function selectionToggleUnread(cdm_mode, set_state, callback_func, no_error) {
 662         try {
 663 /*              if (!xmlhttp_ready(xmlhttp_rpc)) {
 664                         printLockingError();
 665                         return;
 666                 } */
 667
 668                 var rows;
 669
 670                 if (cdm_mode) {
 671                         rows = cdmGetSelectedArticles();
 672                 } else {
 673                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 674                 }
 675
 676                 if (rows.length == 0 && !no_error) {
 677                         alert(__("No articles are selected."));
 678                         return;
 679                 }
 680
 681                 for (i = 0; i < rows.length; i++) {
 682                         var row = document.getElementById("RROW-" + rows[i]);
 683                         if (row) {
 684                                 var nc = row.className;
 685                                 nc = nc.replace("Unread", "");
 686                                 nc = nc.replace("Selected", "");
 687
 688                                 if (set_state == undefined) {
 689                                         if (row.className.match("Unread")) {
 690                                                 row.className = nc + "Selected";
 691                                         } else {
 692                                                 row.className = nc + "UnreadSelected";
 693                                         }
 694                                 }
 695
 696                                 if (set_state == false) {
 697                                         row.className = nc + "Selected";
 698                                 }
 699
 700                                 if (set_state == true) {
 701                                         row.className = nc + "UnreadSelected";
 702                                 }
 703                         }
 704                 }
 705
 706                 if (rows.length > 0) {
 707
 708                         var cmode = "";
 709
 710                         if (set_state == undefined) {
 711                                 cmode = "2";
 712                         } else if (set_state == true) {
 713                                 cmode = "1";
 714                         } else if (set_state == false) {
 715                                 cmode = "0";
 716                         }
 717
 718                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
 719                                 param_escape(rows.toString()) + "&cmode=" + cmode;
 720
 721 //                      _catchup_callback_func = callback_func;
 722
 723                         debug(callback_func);
 724
 725                         notify_progress("Loading, please wait...");
 726
 727 /*                      xmlhttp_rpc.open("GET", query, true);
 728                         xmlhttp_rpc.onreadystatechange=catchup_callback;
 729                         xmlhttp_rpc.send(null); */
 730
 731                         new Ajax.Request(query, {
 732                                 onComplete: function(transport) {
 733                                         catchup_callback2(transport, callback_func);
 734                                 } });
 735
 736                 }
 737
 738         } catch (e) {
 739                 exception_error("selectionToggleUnread", e);
 740         }
 741 }
 742
 743 function selectionToggleMarked(cdm_mode) {
 744         try {
 745
 746                 var rows;
 747
 748                 if (cdm_mode) {
 749                         rows = cdmGetSelectedArticles();
 750                 } else {
 751                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 752                 }
 753
 754                 if (rows.length == 0) {
 755                         alert(__("No articles are selected."));
 756                         return;
 757                 }
 758
 759                 for (i = 0; i < rows.length; i++) {
 760                         toggleMark(rows[i], true, true);
 761                 }
 762
 763                 if (rows.length > 0) {
 764
 765                         var query = "backend.php?op=rpc&subop=markSelected&ids=" +
 766                                 param_escape(rows.toString()) + "&cmode=2";
 767
 768                         query = query + "&afid=" + getActiveFeedId();
 769
 770 /*                      if (tagsAreDisplayed()) {
 771                                 query = query + "&omode=tl";
 772                         } else {
 773                                 query = query + "&omode=flc";
 774                         } */
 775
 776                         query = query + "&omode=lc";
 777
 778                         new Ajax.Request(query, {
 779                                 onComplete: function(transport) {
 780                                         all_counters_callback2(transport);
 781                                 } });
 782
 783                 }
 784
 785         } catch (e) {
 786                 exception_error("selectionToggleMarked", e);
 787         }
 788 }
 789
 790 function selectionTogglePublished(cdm_mode) {
 791         try {
 792
 793                 var rows;
 794
 795                 if (cdm_mode) {
 796                         rows = cdmGetSelectedArticles();
 797                 } else {
 798                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 799                 }
 800
 801                 if (rows.length == 0) {
 802                         alert(__("No articles are selected."));
 803                         return;
 804                 }
 805
 806                 for (i = 0; i < rows.length; i++) {
 807                         togglePub(rows[i], true, true);
 808                 }
 809
 810                 if (rows.length > 0) {
 811
 812                         var query = "backend.php?op=rpc&subop=publishSelected&ids=" +
 813                                 param_escape(rows.toString()) + "&cmode=2";
 814
 815                         query = query + "&afid=" + getActiveFeedId();
 816
 817 /*                      if (tagsAreDisplayed()) {
 818                                 query = query + "&omode=tl";
 819                         } else {
 820                                 query = query + "&omode=flc";
 821                         } */
 822
 823                         query = query + "&omode=lc";
 824
 825                         new Ajax.Request(query, {
 826                                 onComplete: function(transport) {
 827                                         all_counters_callback2(transport);
 828                                 } });
 829
 830                 }
 831
 832         } catch (e) {
 833                 exception_error("selectionToggleMarked", e);
 834         }
 835 }
 836
 837 function cdmGetSelectedArticles() {
 838         var sel_articles = new Array();
 839         var container = document.getElementById("headlinesInnerContainer");
 840
 841         for (i = 0; i < container.childNodes.length; i++) {
 842                 var child = container.childNodes[i];
 843
 844                 if (child.id.match("RROW-") && child.className.match("Selected")) {
 845                         var c_id = child.id.replace("RROW-", "");
 846                         sel_articles.push(c_id);
 847                 }
 848         }
 849
 850         return sel_articles;
 851 }
 852
 853 function cdmGetVisibleArticles() {
 854         var sel_articles = new Array();
 855         var container = document.getElementById("headlinesInnerContainer");
 856
 857         for (i = 0; i < container.childNodes.length; i++) {
 858                 var child = container.childNodes[i];
 859
 860                 if (child.id.match("RROW-")) {
 861                         var c_id = child.id.replace("RROW-", "");
 862                         sel_articles.push(c_id);
 863                 }
 864         }
 865
 866         return sel_articles;
 867 }
 868
 869 function cdmGetUnreadArticles() {
 870         var sel_articles = new Array();
 871         var container = document.getElementById("headlinesInnerContainer");
 872
 873         for (i = 0; i < container.childNodes.length; i++) {
 874                 var child = container.childNodes[i];
 875
 876                 if (child.id.match("RROW-") && child.className.match("Unread")) {
 877                         var c_id = child.id.replace("RROW-", "");
 878                         sel_articles.push(c_id);
 879                 }
 880         }
 881
 882         return sel_articles;
 883 }
 884
 885
 886 // mode = all,none,unread
 887 function cdmSelectArticles(mode) {
 888         var container = document.getElementById("headlinesInnerContainer");
 889
 890         for (i = 0; i < container.childNodes.length; i++) {
 891                 var child = container.childNodes[i];
 892
 893                 if (child.id.match("RROW-")) {
 894                         var aid = child.id.replace("RROW-", "");
 895
 896                         var cb = document.getElementById("RCHK-" + aid);
 897
 898                         if (mode == "all") {
 899                                 if (!child.className.match("Selected")) {
 900                                         child.className = child.className + "Selected";
 901                                         cb.checked = true;
 902                                 }
 903                         } else if (mode == "unread") {
 904                                 if (child.className.match("Unread") && !child.className.match("Selected")) {
 905                                         child.className = child.className + "Selected";
 906                                         cb.checked = true;
 907                                 }
 908                         } else {
 909                                 child.className = child.className.replace("Selected", "");
 910                                 cb.checked = false;
 911                         }
 912                 }
 913         }
 914 }
 915
 916 function catchupPage() {
 917
 918         var fn = getFeedName(getActiveFeedId(), active_feed_is_cat);
 919
 920         var str = __("Mark all visible articles in %s as read?");
 921
 922         str = str.replace("%s", fn);
 923
 924         if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
 925                 return;
 926         }
 927
 928         if (document.getElementById("headlinesList")) {
 929                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, 'Unread', true);
 930                 selectionToggleUnread(false, false, 'viewCurrentFeed()', true);
 931                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
 932         } else {
 933                 cdmSelectArticles('all');
 934                 selectionToggleUnread(true, false, 'viewCurrentFeed()', true)
 935                 cdmSelectArticles('none');
 936         }
 937 }
 938
 939 function catchupSelection() {
 940
 941         try {
 942
 943                 var rows;
 944
 945                 if (document.getElementById("headlinesList")) {
 946                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 947                 } else {
 948                         rows = cdmGetSelectedArticles();
 949                 }
 950
 951                 if (rows.length == 0) {
 952                         alert(__("No articles are selected."));
 953                         return;
 954                 }
 955
 956
 957                 var fn = getFeedName(getActiveFeedId(), active_feed_is_cat);
 958
 959                 var str = __("Mark all selected articles in %s as read?");
 960
 961                 str = str.replace("%s", fn);
 962
 963                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
 964                         return;
 965                 }
 966
 967                 if (document.getElementById("headlinesList")) {
 968                         selectionToggleUnread(false, false, 'viewCurrentFeed()', true);
 969         //              selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
 970                 } else {
 971                         selectionToggleUnread(true, false, 'viewCurrentFeed()', true)
 972         //              cdmSelectArticles('none');
 973                 }
 974
 975         } catch (e) {
 976                 exception_error("catchupSelection", e);
 977         }
 978 }
 979
 980
 981 function labelFromSearch(search, search_mode, match_on, feed_id, is_cat) {
 982
 983         if (!xmlhttp_ready(xmlhttp_rpc)) {
 984                 printLockingError();
 985         }
 986
 987         var title = prompt(__("Please enter label title:"), "");
 988
 989         if (title) {
 990
 991                 var query = "backend.php?op=labelFromSearch&search=" + param_escape(search) +
 992                         "&smode=" + param_escape(search_mode) + "&match=" + param_escape(match_on) +
 993                         "&feed=" + param_escape(feed_id) + "&is_cat=" + param_escape(is_cat) +
 994                         "&title=" + param_escape(title);
 995
 996                 debug("LFS: " + query);
 997
 998                 xmlhttp_rpc.open("GET", query, true);
 999                 xmlhttp_rpc.onreadystatechange=dlg_frefresh_callback;
1000                 xmlhttp_rpc.send(null);
1001         }
1002
1003 }
1004
1005 function editArticleTags(id, feed_id, cdm_enabled) {
1006         _tag_active_post_id = id;
1007         _tag_active_feed_id = feed_id;
1008         _tag_active_cdm = cdm_enabled;
1009
1010         cache_invalidate(id);
1011
1012         try {
1013                 _tag_cdm_scroll = document.getElementById("headlinesInnerContainer").scrollTop;
1014         } catch (e) { }
1015         displayDlg('editArticleTags', id);
1016 }
1017
1018
1019 function tag_saved_callback() {
1020         if (xmlhttp_rpc.readyState == 4) {
1021                 try {
1022                         debug("in tag_saved_callback");
1023
1024                         closeInfoBox();
1025                         notify("");
1026
1027                         if (tagsAreDisplayed()) {
1028                                 _reload_feedlist_after_view = true;
1029                         }
1030
1031                         if (!_tag_active_cdm) {
1032                                 if (active_post_id == _tag_active_post_id) {
1033                                         debug("reloading current article");
1034                                         view(_tag_active_post_id, _tag_active_feed_id);
1035                                 }
1036                         } else {
1037                                 debug("reloading current feed");
1038                                 viewCurrentFeed();
1039                         }
1040
1041                 } catch (e) {
1042                         exception_error("catchup_callback", e);
1043                 }
1044         }
1045 }
1046
1047 function editTagsSave() {
1048
1049         if (!xmlhttp_ready(xmlhttp_rpc)) {
1050                 printLockingError();
1051         }
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         xmlhttp_rpc.open("GET", query, true);
1064         xmlhttp_rpc.onreadystatechange=tag_saved_callback;
1065         xmlhttp_rpc.send(null);
1066
1067 }
1068
1069 function editTagsInsert() {
1070         try {
1071
1072                 var form = document.forms["tag_edit_form"];
1073
1074                 var found_tags = form.found_tags;
1075                 var tags_str = form.tags_str;
1076
1077                 var tag = found_tags[found_tags.selectedIndex].value;
1078
1079                 if (tags_str.value.length > 0 &&
1080                                 tags_str.value.lastIndexOf(", ") != tags_str.value.length - 2) {
1081
1082                         tags_str.value = tags_str.value + ", ";
1083                 }
1084
1085                 tags_str.value = tags_str.value + tag + ", ";
1086
1087                 found_tags.selectedIndex = 0;
1088
1089         } catch (e) {
1090                 exception_error(e, "editTagsInsert");
1091         }
1092 }
1093
1094 function cdmWatchdog() {
1095
1096         try {
1097
1098                 var ctr = document.getElementById("headlinesInnerContainer");
1099
1100                 if (!ctr) return;
1101
1102                 var ids = new Array();
1103
1104                 var e = ctr.firstChild;
1105
1106                 while (e) {
1107                         if (e.className && e.className == "cdmArticleUnread" && e.id &&
1108                                         e.id.match("RROW-")) {
1109
1110                                 // article fits in viewport OR article is longer than viewport and
1111                                 // its bottom is visible
1112
1113                                 if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <=
1114                                                 ctr.scrollTop + ctr.offsetHeight) {
1115
1116 //                                      debug(e.id + " is visible " + e.offsetTop + "." +
1117 //                                              (e.offsetTop + e.offsetHeight) + " vs " + ctr.scrollTop + "." +
1118 //                                              (ctr.scrollTop + ctr.offsetHeight));
1119
1120                                         ids.push(e.id.replace("RROW-", ""));
1121
1122                                 } else if (e.offsetHeight > ctr.offsetHeight &&
1123                                                 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1124                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
1125
1126                                         ids.push(e.id.replace("RROW-", ""));
1127
1128                                 }
1129
1130                                 // method 2: article bottom is visible and is in upper 1/2 of the viewport
1131
1132 /*                              if (e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1133                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight/2) {
1134
1135                                         ids.push(e.id.replace("RROW-", ""));
1136
1137                                 } */
1138
1139                         }
1140
1141                         e = e.nextSibling;
1142                 }
1143
1144                 debug("cdmWatchdog, ids= " + ids.toString());
1145
1146                 if (ids.length > 0) {
1147
1148                         for (var i = 0; i < ids.length; i++) {
1149                                 var e = document.getElementById("RROW-" + ids[i]);
1150                                 if (e) {
1151                                         e.className = e.className.replace("Unread", "");
1152                                 }
1153                         }
1154
1155                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
1156                                 param_escape(ids.toString()) + "&cmode=0";
1157
1158                         new Ajax.Request(query, {
1159                                 onComplete: function(transport) {
1160                                         all_counters_callback2(transport);
1161                                 } });
1162
1163                 }
1164
1165                 _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 4000);
1166
1167         } catch (e) {
1168                 exception_error(e, "cdmWatchdog");
1169         }
1170
1171 }
1172
1173
1174 function cache_inject(id, article) {
1175         if (!cache_check(id)) {
1176                 debug("cache_article: miss: " + id);
1177
1178                 var cache_obj = new Array();
1179
1180                 cache_obj["id"] = id;
1181                 cache_obj["data"] = article;
1182
1183                 article_cache.push(cache_obj);
1184
1185         } else {
1186                 debug("cache_article: hit: " + id);
1187         }
1188 }
1189
1190 function cache_find(id) {
1191         for (var i = 0; i < article_cache.length; i++) {
1192                 if (article_cache[i]["id"] == id) {
1193                         return article_cache[i]["data"];
1194                 }
1195         }
1196         return false;
1197 }
1198
1199 function cache_check(id) {
1200         for (var i = 0; i < article_cache.length; i++) {
1201                 if (article_cache[i]["id"] == id) {
1202                         return true;
1203                 }
1204         }
1205         return false;
1206 }
1207
1208 function cache_expire() {
1209         while (article_cache.length > 20) {
1210                 article_cache.shift();
1211         }
1212 }
1213
1214 function cache_invalidate(id) {
1215         var i = 0
1216
1217         try {
1218
1219                 while (i < article_cache.length) {
1220                         if (article_cache[i]["id"] == id) {
1221                                 debug("cache_invalidate: removed id " + id);
1222                                 article_cache.splice(i, 1);
1223                                 return true;
1224                         }
1225                         i++;
1226                 }
1227                 debug("cache_invalidate: id not found: " + id);
1228                 return false;
1229         } catch (e) {
1230                 exception_error("cache_invalidate", e);
1231         }
1232 }
1233
1234 function getActiveArticleId() {
1235         return active_post_id;
1236 }
1237
1238 function cdmMouseIn(elem) {
1239         try {
1240                 if (elem.id && elem.id.match("RROW-")) {
1241                         var id = elem.id.replace("RROW-", "");
1242                         active_post_id = id;
1243                 }
1244         } catch (e) {
1245                 exception_error("cdmMouseIn", e);
1246         }
1247
1248 }
1249
1250 function cdmMouseOut(elem) {
1251         active_post_id = false;
1252 }
1253
1254 function headlines_scroll_handler() {
1255         try {
1256
1257                 var e = document.getElementById("headlinesInnerContainer");
1258
1259                 if (e.scrollTop + e.offsetHeight > e.scrollHeight - 300) {
1260                         if (!_infscroll_disable) {
1261                                 debug("more cowbell!");
1262                                 viewNextFeedPage();
1263                         }
1264                 }
1265
1266         } catch (e) {
1267                 exception_error("headlines_scroll_handler", e);
1268         }
1269 }
1270
1271 function catchupRelativeToArticle(below) {
1272
1273         try {
1274
1275                 if (!xmlhttp_ready(xmlhttp_rpc)) {
1276                         printLockingError();
1277                 }
1278
1279                 if (!getActiveArticleId()) {
1280                         alert(__("No article is selected."));
1281                         return;
1282                 }
1283
1284                 var visible_ids;
1285
1286                 if (document.getElementById("headlinesList")) {
1287                         visible_ids = getVisibleHeadlineIds();
1288                 } else {
1289                         visible_ids = cdmGetVisibleArticles();
1290                 }
1291
1292                 var ids_to_mark = new Array();
1293
1294                 if (!below) {
1295                         for (var i = 0; i < visible_ids.length; i++) {
1296                                 if (visible_ids[i] != getActiveArticleId()) {
1297                                         var e = document.getElementById("RROW-" + visible_ids[i]);
1298
1299                                         if (e && e.className.match("Unread")) {
1300                                                 ids_to_mark.push(visible_ids[i]);
1301                                         }
1302                                 } else {
1303                                         break;
1304                                 }
1305                         }
1306                 } else {
1307                         for (var i = visible_ids.length-1; i >= 0; i--) {
1308                                 if (visible_ids[i] != getActiveArticleId()) {
1309                                         var e = document.getElementById("RROW-" + visible_ids[i]);
1310
1311                                         if (e && e.className.match("Unread")) {
1312                                                 ids_to_mark.push(visible_ids[i]);
1313                                         }
1314                                 } else {
1315                                         break;
1316                                 }
1317                         }
1318                 }
1319
1320                 if (ids_to_mark.length == 0) {
1321                         alert(__("No articles found to mark"));
1322                 } else {
1323                         var msg = __("Mark %d article(s) as read?").replace("%d", ids_to_mark.length);
1324
1325                         if (confirm(msg)) {
1326
1327                                 for (var i = 0; i < ids_to_mark.length; i++) {
1328                                         var e = document.getElementById("RROW-" + ids_to_mark[i]);
1329                                         e.className = e.className.replace("Unread", "");
1330                                 }
1331
1332                                 var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
1333                                         param_escape(ids_to_mark.toString()) + "&cmode=0";
1334
1335                                 xmlhttp_rpc.open("GET", query, true);
1336                                 xmlhttp_rpc.onreadystatechange=catchup_callback;
1337                                 xmlhttp_rpc.send(null);
1338
1339                         }
1340                 }
1341
1342         } catch (e) {
1343                 exception_error("catchupRelativeToArticle", e);
1344         }
1345 }