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                                                 c.innerHTML = c.innerHTML + headlines.firstChild.nodeValue;
 114                                         } else {
 115                                                 debug("no new headlines received");
 116                                         }
 117                                 } else {
 118                                         debug("headlines_callback: returned no data");
 119                                         notify_error("Error while trying to load more headlines");
 120                                 }
 121
 122                         }
 123
 124                         if (articles) {
 125                                 for (var i = 0; i < articles.length; i++) {
 126                                         var a_id = articles[i].getAttribute("id");
 127                                         debug("found id: " + a_id);
 128                                         cache_inject(a_id, articles[i].firstChild.nodeValue);
 129                                 }
 130                         } else {
 131                                 debug("no cached articles received");
 132                         }
 133
 134                         if (counters) {
 135                                 debug("parsing piggybacked counters: " + counters);
 136                                 parse_counters(counters, false);
 137                         } else {
 138                                 debug("counters container not found in reply");
 139                         }
 140
 141                         if (runtime_info) {
 142                                 debug("parsing runtime info: " + runtime_info[0]);
 143                                 parse_runtime_info(runtime_info[0]);
 144                         } else {
 145                                 debug("counters container not found in reply");
 146                         }
 147
 148                 } else {
 149                         debug("headlines_callback: returned no XML object");
 150                         f.innerHTML = "<div class='whiteBox'>" + __('Could not update headlines (missing XML object)') + "</div>";
 151                 }
 152
 153                 if (typeof correctPNG != 'undefined') {
 154                         correctPNG();
 155                 }
 156
 157                 if (_cdm_wd_timeout) window.clearTimeout(_cdm_wd_timeout);
 158
 159                 if (!document.getElementById("headlinesList") &&
 160                                 getInitParam("cdm_auto_catchup") == 1) {
 161                         debug("starting CDM watchdog");
 162                         _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 5000);
 163                         _cdm_wd_vishist = new Array();
 164                 } else {
 165                         debug("not in CDM mode or watchdog disabled");
 166                 }
 167
 168                 if (_tag_cdm_scroll) {
 169                         try {
 170                                 document.getElementById("headlinesInnerContainer").scrollTop = _tag_cdm_scroll;
 171                                 _tag_cdm_scroll = false;
 172                                 debug("resetting headlinesInner scrollTop");
 173
 174                         } catch (e) { }
 175                 }
 176
 177                 _feed_cur_page = feed_cur_page;
 178
 179                 notify("");
 180         } catch (e) {
 181                 exception_error("headlines_callback2", e);
 182         }
 183 }
 184
 185 function render_article(article) {
 186         try {
 187                 var f = document.getElementById("content-frame");
 188                 try {
 189                         f.scrollTop = 0;
 190                 } catch (e) { };
 191
 192                 f.innerHTML = article;
 193
 194         } catch (e) {
 195                 exception_error("render_article", e);
 196         }
 197 }
 198
 199 function showArticleInHeadlines(id) {
 200
 201         cleanSelected("headlinesList");
 202
 203         var crow = document.getElementById("RROW-" + id);
 204         var article_is_unread = crow.className.match("Unread");
 205
 206         crow.className = crow.className.replace("Unread", "");
 207
 208         var upd_img_pic = document.getElementById("FUPDPIC-" + id);
 209
 210         if (upd_img_pic) {
 211                 upd_img_pic.src = "images/blank_icon.gif";
 212         }
 213
 214         selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
 215         markHeadline(id);
 216
 217 }
 218
 219 function article_callback2(transport, id, feed_id) {
 220         try {
 221                 debug("article_callback2 " + id);
 222
 223                 if (transport.responseXML) {
 224
 225                         active_real_feed_id = feed_id;
 226                         active_post_id = id;
 227
 228                         showArticleInHeadlines(id);
 229
 230                         var reply = transport.responseXML.firstChild.firstChild;
 231
 232                         var articles = transport.responseXML.getElementsByTagName("article");
 233
 234                         for (var i = 0; i < articles.length; i++) {
 235                                 var a_id = articles[i].getAttribute("id");
 236
 237                                 debug("found id: " + a_id);
 238
 239                                 if (a_id == active_post_id) {
 240                                         debug("active article, rendering...");
 241                                         render_article(articles[i].firstChild.nodeValue);
 242                                 }
 243
 244                                 cache_inject(a_id, articles[i].firstChild.nodeValue);
 245                         }
 246
 247                 } else {
 248                         debug("article_callback: returned no XML object");
 249                         var f = document.getElementById("content-frame");
 250                         f.innerHTML = "<div class='whiteBox'>" + __('Could not display article (missing XML object)') + "</div>";
 251                 }
 252
 253                 var date = new Date();
 254                 last_article_view = date.getTime() / 1000;
 255
 256                 if (typeof correctPNG != 'undefined') {
 257                         correctPNG();
 258                 }
 259
 260                 if (_reload_feedlist_after_view) {
 261                         setTimeout('updateFeedList(false, false)', 50);
 262                         _reload_feedlist_after_view = false;
 263                 } else {
 264                         var counters = transport.responseXML.getElementsByTagName("counters")[0];
 265
 266                         if (counters) {
 267                                 debug("parsing piggybacked counters: " + counters);
 268                                 parse_counters(counters, false);
 269                         } else {
 270                                 debug("counters container not found in reply");
 271                         }
 272                 }
 273
 274                 notify("");
 275         } catch (e) {
 276                 exception_error("article_callback2", e);
 277         }
 278 }
 279
 280 function view(id, feed_id, skip_history) {
 281
 282         try {
 283                 debug("loading article: " + id + "/" + feed_id);
 284
 285                 var cached_article = cache_find(id);
 286
 287                 debug("cache check result: " + (cached_article != false));
 288
 289                 enableHotkeys();
 290
 291                 //setActiveFeedId(feed_id);
 292
 293                 var query = "backend.php?op=view&id=" + param_escape(id) +
 294                         "&feed=" + param_escape(feed_id);
 295
 296                 var date = new Date();
 297
 298 /*              if (!xmlhttp_ready(xmlhttp) && last_article_view < date.getTime() / 1000 - 15) {
 299                         debug("<b>xmlhttp seems to be stuck at view, aborting</b>");
 300                         xmlhttp.abort();
 301                         if (is_safari()) {
 302                                 debug("trying alternative reset method for Safari");
 303                                 xmlhttp = Ajax.getTransport();
 304                         }
 305                 }
 306
 307                 if (xmlhttp_ready(xmlhttp)) { */
 308
 309                 var neighbor_ids = getRelativePostIds(active_post_id);
 310
 311                 /* only request uncached articles */
 312
 313                 var cids_to_request = Array();
 314
 315                 for (var i = 0; i < neighbor_ids.length; i++) {
 316                         if (!cache_check(neighbor_ids[i])) {
 317                                 cids_to_request.push(neighbor_ids[i]);
 318                         }
 319                 }
 320
 321                 debug("additional ids: " + cids_to_request.toString());
 322
 323                 /* additional info for piggyback counters */
 324
 325                 if (tagsAreDisplayed()) {
 326                         query = query + "&omode=lt";
 327                 } else {
 328                         query = query + "&omode=flc";
 329                 }
 330
 331                 var date = new Date();
 332                 var timestamp = Math.round(date.getTime() / 1000);
 333                 query = query + "&ts=" + timestamp;
 334
 335                 query = query + "&cids=" + cids_to_request.toString();
 336
 337                 var crow = document.getElementById("RROW-" + id);
 338                 var article_is_unread = crow.className.match("Unread");
 339
 340                 showArticleInHeadlines(id);
 341
 342                 if (!cached_article) {
 343
 344                         notify_progress("Loading, please wait...");
 345
 346                 } else if (cached_article && article_is_unread) {
 347
 348                         query = query + "&mode=prefetch";
 349
 350                         render_article(cached_article);
 351
 352                 } else if (cached_article) {
 353
 354                         query = query + "&mode=prefetch_old";
 355                         render_article(cached_article);
 356                 }
 357
 358                 cache_expire();
 359
 360                 new Ajax.Request(query, {
 361                         onComplete: function(transport) {
 362                                 article_callback2(transport, id, feed_id);
 363                         } });
 364
 365         } catch (e) {
 366                 exception_error("view", e);
 367         }
 368 }
 369
 370 function tMark(id) {
 371         return toggleMark(id);
 372 }
 373
 374 function tPub(id) {
 375         return togglePub(id);
 376 }
 377
 378 function tMark_afh_off(effect) {
 379         try {
 380                 var elem = effect.effects[0].element;
 381
 382                 debug("tMark_afh_off : " + elem.id);
 383
 384                 if (elem) {
 385                         elem.src = elem.src.replace("mark_set", "mark_unset");
 386                         elem.alt = __("Star article");
 387                         Element.show(elem);
 388                 }
 389
 390         } catch (e) {
 391                 exception_error("tMark_afh_off", e);
 392         }
 393 }
 394
 395 function tPub_afh_off(effect) {
 396         try {
 397                 var elem = effect.effects[0].element;
 398
 399                 debug("tPub_afh_off : " + elem.id);
 400
 401                 if (elem) {
 402                         elem.src = elem.src.replace("pub_set", "pub_unset");
 403                         elem.alt = __("Publish article");
 404                         Element.show(elem);
 405                 }
 406
 407         } catch (e) {
 408                 exception_error("tPub_afh_off", e);
 409         }
 410 }
 411
 412 function toggleMark(id, client_only, no_effects) {
 413
 414         try {
 415
 416                 var query = "backend.php?op=rpc&id=" + id + "&subop=mark";
 417
 418                 query = query + "&afid=" + getActiveFeedId();
 419
 420                 if (tagsAreDisplayed()) {
 421                         query = query + "&omode=tl";
 422                 } else {
 423                         query = query + "&omode=flc";
 424                 }
 425
 426                 var mark_img = document.getElementById("FMPIC-" + id);
 427                 var vfeedu = document.getElementById("FEEDU--1");
 428                 var crow = document.getElementById("RROW-" + id);
 429
 430                 if (mark_img.src.match("mark_unset")) {
 431                         mark_img.src = mark_img.src.replace("mark_unset", "mark_set");
 432                         mark_img.alt = __("Unstar article");
 433                         query = query + "&mark=1";
 434
 435 /*                      if (vfeedu && crow.className.match("Unread")) {
 436                                 vfeedu.innerHTML = (+vfeedu.innerHTML) + 1;
 437                         } */
 438
 439                 } else {
 440                         //mark_img.src = "images/mark_unset.png";
 441                         mark_img.alt = __("Please wait...");
 442                         query = query + "&mark=0";
 443
 444 /*                      if (vfeedu && crow.className.match("Unread")) {
 445                                 vfeedu.innerHTML = (+vfeedu.innerHTML) - 1;
 446                         } */
 447
 448                         if (document.getElementById("headlinesList") && !no_effects) {
 449                                 Effect.Puff(mark_img, {duration : 0.25, afterFinish: tMark_afh_off});
 450                         } else {
 451                                 mark_img.src = mark_img.src.replace("mark_set", "mark_unset");
 452                                 mark_img.alt = __("Star article");
 453                         }
 454                 }
 455
 456 /*              var vfeedctr = document.getElementById("FEEDCTR--1");
 457                 var vfeedr = document.getElementById("FEEDR--1");
 458
 459                 if (vfeedu && vfeedctr) {
 460                         if ((+vfeedu.innerHTML) > 0) {
 461                                 if (crow.className.match("Unread") && !vfeedr.className.match("Unread")) {
 462                                         vfeedr.className = vfeedr.className + "Unread";
 463                                         vfeedctr.className = "odd";
 464                                 }
 465                         } else {
 466                                 vfeedctr.className = "invisible";
 467                                 vfeedr.className = vfeedr.className.replace("Unread", "");
 468                         }
 469                 }
 470
 471                 debug("toggle starred for aid " + id);
 472
 473                 //new Ajax.Request(query); */
 474
 475                 if (!client_only) {
 476                         debug(query);
 477
 478                         new Ajax.Request(query, {
 479                                 onComplete: function(transport) {
 480                                         all_counters_callback2(transport);
 481                                 } });
 482
 483                 }
 484
 485         } catch (e) {
 486                 exception_error("toggleMark", e);
 487         }
 488 }
 489
 490 function togglePub(id, client_only, no_effects) {
 491
 492         try {
 493
 494                 var query = "backend.php?op=rpc&id=" + id + "&subop=publ";
 495
 496                 query = query + "&afid=" + getActiveFeedId();
 497
 498                 if (tagsAreDisplayed()) {
 499                         query = query + "&omode=tl";
 500                 } else {
 501                         query = query + "&omode=flc";
 502                 }
 503
 504                 var mark_img = document.getElementById("FPPIC-" + id);
 505                 var vfeedu = document.getElementById("FEEDU--2");
 506                 var crow = document.getElementById("RROW-" + id);
 507
 508                 if (mark_img.src.match("pub_unset")) {
 509                         mark_img.src = mark_img.src.replace("pub_unset", "pub_set");
 510                         mark_img.alt = __("Unpublish article");
 511                         query = query + "&pub=1";
 512
 513 /*                      if (vfeedu && crow.className.match("Unread")) {
 514                                 vfeedu.innerHTML = (+vfeedu.innerHTML) + 1;
 515                         } */
 516
 517                 } else {
 518                         //mark_img.src = "images/pub_unset.png";
 519                         mark_img.alt = __("Please wait...");
 520                         query = query + "&pub=0";
 521
 522 /*                      if (vfeedu && crow.className.match("Unread")) {
 523                                 vfeedu.innerHTML = (+vfeedu.innerHTML) - 1;
 524                         } */
 525
 526                         if (document.getElementById("headlinesList") && !no_effects) {
 527                                 Effect.Puff(mark_img, {duration : 0.25, afterFinish: tPub_afh_off});
 528                         } else {
 529                                 mark_img.src = mark_img.src.replace("pub_set", "pub_unset");
 530                                 mark_img.alt = __("Publish article");
 531                         }
 532                 }
 533
 534 /*              var vfeedctr = document.getElementById("FEEDCTR--2");
 535                 var vfeedr = document.getElementById("FEEDR--2");
 536
 537                 if (vfeedu && vfeedctr) {
 538                         if ((+vfeedu.innerHTML) > 0) {
 539                                 if (crow.className.match("Unread") && !vfeedr.className.match("Unread")) {
 540                                         vfeedr.className = vfeedr.className + "Unread";
 541                                         vfeedctr.className = "odd";
 542                                 }
 543                         } else {
 544                                 vfeedctr.className = "invisible";
 545                                 vfeedr.className = vfeedr.className.replace("Unread", "");
 546                         }
 547                 }
 548
 549                 debug("toggle published for aid " + id);
 550
 551                 new Ajax.Request(query); */
 552
 553                 if (!client_only) {
 554                         new Ajax.Request(query, {
 555                                 onComplete: function(transport) {
 556                                         all_counters_callback2(transport);
 557                                 } });
 558                 }
 559
 560         } catch (e) {
 561
 562                 exception_error("togglePub", e);
 563         }
 564 }
 565
 566 function correctHeadlinesOffset(id) {
 567
 568         try {
 569
 570                 var hlist = document.getElementById("headlinesList");
 571                 var container = document.getElementById("headlinesInnerContainer");
 572                 var row = document.getElementById("RROW-" + id);
 573
 574                 var viewport = container.offsetHeight;
 575
 576                 var rel_offset_top = row.offsetTop - container.scrollTop;
 577                 var rel_offset_bottom = row.offsetTop + row.offsetHeight - container.scrollTop;
 578
 579                 debug("Rtop: " + rel_offset_top + " Rbtm: " + rel_offset_bottom);
 580                 debug("Vport: " + viewport);
 581
 582                 if (rel_offset_top <= 0 || rel_offset_top > viewport) {
 583                         container.scrollTop = row.offsetTop;
 584                 } else if (rel_offset_bottom > viewport) {
 585
 586                         /* doesn't properly work with Opera in some cases because
 587                                 Opera fucks up element scrolling */
 588
 589                         container.scrollTop = row.offsetTop + row.offsetHeight - viewport;
 590                 }
 591
 592         } catch (e) {
 593                 exception_error("correctHeadlinesOffset", e);
 594         }
 595
 596 }
 597
 598 function moveToPost(mode) {
 599
 600         // check for combined mode
 601         if (!document.getElementById("headlinesList"))
 602                 return;
 603
 604         var rows = getVisibleHeadlineIds();
 605
 606         var prev_id = false;
 607         var next_id = false;
 608
 609         if (!document.getElementById('RROW-' + active_post_id)) {
 610                 active_post_id = false;
 611         }
 612
 613         if (active_post_id == false) {
 614                 next_id = getFirstVisibleHeadlineId();
 615                 prev_id = getLastVisibleHeadlineId();
 616         } else {
 617                 for (var i = 0; i < rows.length; i++) {
 618                         if (rows[i] == active_post_id) {
 619                                 prev_id = rows[i-1];
 620                                 next_id = rows[i+1];
 621                         }
 622                 }
 623         }
 624
 625         if (mode == "next") {
 626                 if (next_id) {
 627                         correctHeadlinesOffset(next_id);
 628                         view(next_id, getActiveFeedId());
 629                 }
 630         }
 631
 632         if (mode == "prev") {
 633                 if (prev_id) {
 634                         correctHeadlinesOffset(prev_id);
 635                         view(prev_id, getActiveFeedId());
 636                 }
 637         }
 638 }
 639
 640 function toggleUnread(id, cmode) {
 641         try {
 642
 643                 var row = document.getElementById("RROW-" + id);
 644                 if (row) {
 645                         var nc = row.className;
 646                         nc = nc.replace("Unread", "");
 647                         nc = nc.replace("Selected", "");
 648
 649                         if (row.className.match("Unread")) {
 650                                 row.className = nc;
 651                         } else {
 652                                 row.className = nc + "Unread";
 653                         }
 654
 655                         if (!cmode) cmode = 2;
 656
 657                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
 658                                 param_escape(id) + "&cmode=" + param_escape(cmode);
 659
 660 //                      notify_progress("Loading, please wait...");
 661
 662                         new Ajax.Request(query, {
 663                                 onComplete: function(transport) {
 664                                         all_counters_callback2(transport);
 665                                 } });
 666
 667                 }
 668
 669
 670         } catch (e) {
 671                 exception_error("toggleUnread", e);
 672         }
 673 }
 674
 675 function selectionToggleUnread(cdm_mode, set_state, callback_func, no_error) {
 676         try {
 677 /*              if (!xmlhttp_ready(xmlhttp_rpc)) {
 678                         printLockingError();
 679                         return;
 680                 } */
 681
 682                 var rows;
 683
 684                 if (cdm_mode) {
 685                         rows = cdmGetSelectedArticles();
 686                 } else {
 687                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 688                 }
 689
 690                 if (rows.length == 0 && !no_error) {
 691                         alert(__("No articles are selected."));
 692                         return;
 693                 }
 694
 695                 for (i = 0; i < rows.length; i++) {
 696                         var row = document.getElementById("RROW-" + rows[i]);
 697                         if (row) {
 698                                 var nc = row.className;
 699                                 nc = nc.replace("Unread", "");
 700                                 nc = nc.replace("Selected", "");
 701
 702                                 if (set_state == undefined) {
 703                                         if (row.className.match("Unread")) {
 704                                                 row.className = nc + "Selected";
 705                                         } else {
 706                                                 row.className = nc + "UnreadSelected";
 707                                         }
 708                                 }
 709
 710                                 if (set_state == false) {
 711                                         row.className = nc + "Selected";
 712                                 }
 713
 714                                 if (set_state == true) {
 715                                         row.className = nc + "UnreadSelected";
 716                                 }
 717                         }
 718                 }
 719
 720                 if (rows.length > 0) {
 721
 722                         var cmode = "";
 723
 724                         if (set_state == undefined) {
 725                                 cmode = "2";
 726                         } else if (set_state == true) {
 727                                 cmode = "1";
 728                         } else if (set_state == false) {
 729                                 cmode = "0";
 730                         }
 731
 732                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
 733                                 param_escape(rows.toString()) + "&cmode=" + cmode;
 734
 735 //                      _catchup_callback_func = callback_func;
 736
 737                         debug(callback_func);
 738
 739                         notify_progress("Loading, please wait...");
 740
 741 /*                      xmlhttp_rpc.open("GET", query, true);
 742                         xmlhttp_rpc.onreadystatechange=catchup_callback;
 743                         xmlhttp_rpc.send(null); */
 744
 745                         new Ajax.Request(query, {
 746                                 onComplete: function(transport) {
 747                                         catchup_callback2(transport, callback_func);
 748                                 } });
 749
 750                 }
 751
 752         } catch (e) {
 753                 exception_error("selectionToggleUnread", e);
 754         }
 755 }
 756
 757 function selectionToggleMarked(cdm_mode) {
 758         try {
 759
 760                 var rows;
 761
 762                 if (cdm_mode) {
 763                         rows = cdmGetSelectedArticles();
 764                 } else {
 765                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 766                 }
 767
 768                 if (rows.length == 0) {
 769                         alert(__("No articles are selected."));
 770                         return;
 771                 }
 772
 773                 for (i = 0; i < rows.length; i++) {
 774                         toggleMark(rows[i], true, true);
 775                 }
 776
 777                 if (rows.length > 0) {
 778
 779                         var query = "backend.php?op=rpc&subop=markSelected&ids=" +
 780                                 param_escape(rows.toString()) + "&cmode=2";
 781
 782                         query = query + "&afid=" + getActiveFeedId();
 783
 784 /*                      if (tagsAreDisplayed()) {
 785                                 query = query + "&omode=tl";
 786                         } else {
 787                                 query = query + "&omode=flc";
 788                         } */
 789
 790                         query = query + "&omode=lc";
 791
 792                         new Ajax.Request(query, {
 793                                 onComplete: function(transport) {
 794                                         all_counters_callback2(transport);
 795                                 } });
 796
 797                 }
 798
 799         } catch (e) {
 800                 exception_error("selectionToggleMarked", e);
 801         }
 802 }
 803
 804 function selectionTogglePublished(cdm_mode) {
 805         try {
 806
 807                 var rows;
 808
 809                 if (cdm_mode) {
 810                         rows = cdmGetSelectedArticles();
 811                 } else {
 812                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 813                 }
 814
 815                 if (rows.length == 0) {
 816                         alert(__("No articles are selected."));
 817                         return;
 818                 }
 819
 820                 for (i = 0; i < rows.length; i++) {
 821                         togglePub(rows[i], true, true);
 822                 }
 823
 824                 if (rows.length > 0) {
 825
 826                         var query = "backend.php?op=rpc&subop=publishSelected&ids=" +
 827                                 param_escape(rows.toString()) + "&cmode=2";
 828
 829                         query = query + "&afid=" + getActiveFeedId();
 830
 831 /*                      if (tagsAreDisplayed()) {
 832                                 query = query + "&omode=tl";
 833                         } else {
 834                                 query = query + "&omode=flc";
 835                         } */
 836
 837                         query = query + "&omode=lc";
 838
 839                         new Ajax.Request(query, {
 840                                 onComplete: function(transport) {
 841                                         all_counters_callback2(transport);
 842                                 } });
 843
 844                 }
 845
 846         } catch (e) {
 847                 exception_error("selectionToggleMarked", e);
 848         }
 849 }
 850
 851 function cdmGetSelectedArticles() {
 852         var sel_articles = new Array();
 853         var container = document.getElementById("headlinesInnerContainer");
 854
 855         for (i = 0; i < container.childNodes.length; i++) {
 856                 var child = container.childNodes[i];
 857
 858                 if (child.id.match("RROW-") && child.className.match("Selected")) {
 859                         var c_id = child.id.replace("RROW-", "");
 860                         sel_articles.push(c_id);
 861                 }
 862         }
 863
 864         return sel_articles;
 865 }
 866
 867 function cdmGetVisibleArticles() {
 868         var sel_articles = new Array();
 869         var container = document.getElementById("headlinesInnerContainer");
 870
 871         for (i = 0; i < container.childNodes.length; i++) {
 872                 var child = container.childNodes[i];
 873
 874                 if (child.id.match("RROW-")) {
 875                         var c_id = child.id.replace("RROW-", "");
 876                         sel_articles.push(c_id);
 877                 }
 878         }
 879
 880         return sel_articles;
 881 }
 882
 883 function cdmGetUnreadArticles() {
 884         var sel_articles = new Array();
 885         var container = document.getElementById("headlinesInnerContainer");
 886
 887         for (i = 0; i < container.childNodes.length; i++) {
 888                 var child = container.childNodes[i];
 889
 890                 if (child.id.match("RROW-") && child.className.match("Unread")) {
 891                         var c_id = child.id.replace("RROW-", "");
 892                         sel_articles.push(c_id);
 893                 }
 894         }
 895
 896         return sel_articles;
 897 }
 898
 899
 900 // mode = all,none,unread
 901 function cdmSelectArticles(mode) {
 902         var container = document.getElementById("headlinesInnerContainer");
 903
 904         for (i = 0; i < container.childNodes.length; i++) {
 905                 var child = container.childNodes[i];
 906
 907                 if (child.id.match("RROW-")) {
 908                         var aid = child.id.replace("RROW-", "");
 909
 910                         var cb = document.getElementById("RCHK-" + aid);
 911
 912                         if (mode == "all") {
 913                                 if (!child.className.match("Selected")) {
 914                                         child.className = child.className + "Selected";
 915                                         cb.checked = true;
 916                                 }
 917                         } else if (mode == "unread") {
 918                                 if (child.className.match("Unread") && !child.className.match("Selected")) {
 919                                         child.className = child.className + "Selected";
 920                                         cb.checked = true;
 921                                 }
 922                         } else {
 923                                 child.className = child.className.replace("Selected", "");
 924                                 cb.checked = false;
 925                         }
 926                 }
 927         }
 928 }
 929
 930 function catchupPage() {
 931
 932         var fn = getFeedName(getActiveFeedId(), active_feed_is_cat);
 933
 934         var str = __("Mark all visible articles in %s as read?");
 935
 936         str = str.replace("%s", fn);
 937
 938         if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
 939                 return;
 940         }
 941
 942         if (document.getElementById("headlinesList")) {
 943                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, 'Unread', true);
 944                 selectionToggleUnread(false, false, 'viewCurrentFeed()', true);
 945                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
 946         } else {
 947                 cdmSelectArticles('all');
 948                 selectionToggleUnread(true, false, 'viewCurrentFeed()', true)
 949                 cdmSelectArticles('none');
 950         }
 951 }
 952
 953 function catchupSelection() {
 954
 955         try {
 956
 957                 var rows;
 958
 959                 if (document.getElementById("headlinesList")) {
 960                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 961                 } else {
 962                         rows = cdmGetSelectedArticles();
 963                 }
 964
 965                 if (rows.length == 0) {
 966                         alert(__("No articles are selected."));
 967                         return;
 968                 }
 969
 970
 971                 var fn = getFeedName(getActiveFeedId(), active_feed_is_cat);
 972
 973                 var str = __("Mark all selected articles in %s as read?");
 974
 975                 str = str.replace("%s", fn);
 976
 977                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
 978                         return;
 979                 }
 980
 981                 if (document.getElementById("headlinesList")) {
 982                         selectionToggleUnread(false, false, 'viewCurrentFeed()', true);
 983         //              selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
 984                 } else {
 985                         selectionToggleUnread(true, false, 'viewCurrentFeed()', true)
 986         //              cdmSelectArticles('none');
 987                 }
 988
 989         } catch (e) {
 990                 exception_error("catchupSelection", e);
 991         }
 992 }
 993
 994
 995 function labelFromSearch(search, search_mode, match_on, feed_id, is_cat) {
 996
 997         if (!xmlhttp_ready(xmlhttp_rpc)) {
 998                 printLockingError();
 999         }
1000
1001         var title = prompt(__("Please enter label title:"), "");
1002
1003         if (title) {
1004
1005                 var query = "backend.php?op=labelFromSearch&search=" + param_escape(search) +
1006                         "&smode=" + param_escape(search_mode) + "&match=" + param_escape(match_on) +
1007                         "&feed=" + param_escape(feed_id) + "&is_cat=" + param_escape(is_cat) +
1008                         "&title=" + param_escape(title);
1009
1010                 debug("LFS: " + query);
1011
1012                 xmlhttp_rpc.open("GET", query, true);
1013                 xmlhttp_rpc.onreadystatechange=dlg_frefresh_callback;
1014                 xmlhttp_rpc.send(null);
1015         }
1016
1017 }
1018
1019 function editArticleTags(id, feed_id, cdm_enabled) {
1020         _tag_active_post_id = id;
1021         _tag_active_feed_id = feed_id;
1022         _tag_active_cdm = cdm_enabled;
1023
1024         cache_invalidate(id);
1025
1026         try {
1027                 _tag_cdm_scroll = document.getElementById("headlinesInnerContainer").scrollTop;
1028         } catch (e) { }
1029         displayDlg('editArticleTags', id);
1030 }
1031
1032
1033 function tag_saved_callback() {
1034         if (xmlhttp_rpc.readyState == 4) {
1035                 try {
1036                         debug("in tag_saved_callback");
1037
1038                         closeInfoBox();
1039                         notify("");
1040
1041                         if (tagsAreDisplayed()) {
1042                                 _reload_feedlist_after_view = true;
1043                         }
1044
1045                         if (!_tag_active_cdm) {
1046                                 if (active_post_id == _tag_active_post_id) {
1047                                         debug("reloading current article");
1048                                         view(_tag_active_post_id, _tag_active_feed_id);
1049                                 }
1050                         } else {
1051                                 debug("reloading current feed");
1052                                 viewCurrentFeed();
1053                         }
1054
1055                 } catch (e) {
1056                         exception_error("catchup_callback", e);
1057                 }
1058         }
1059 }
1060
1061 function editTagsSave() {
1062
1063         if (!xmlhttp_ready(xmlhttp_rpc)) {
1064                 printLockingError();
1065         }
1066
1067         notify_progress("Saving article tags...");
1068
1069         var form = document.forms["tag_edit_form"];
1070
1071         var query = Form.serialize("tag_edit_form");
1072
1073         query = "backend.php?op=rpc&subop=setArticleTags&" + query;
1074
1075         debug(query);
1076
1077         xmlhttp_rpc.open("GET", query, true);
1078         xmlhttp_rpc.onreadystatechange=tag_saved_callback;
1079         xmlhttp_rpc.send(null);
1080
1081 }
1082
1083 function editTagsInsert() {
1084         try {
1085
1086                 var form = document.forms["tag_edit_form"];
1087
1088                 var found_tags = form.found_tags;
1089                 var tags_str = form.tags_str;
1090
1091                 var tag = found_tags[found_tags.selectedIndex].value;
1092
1093                 if (tags_str.value.length > 0 &&
1094                                 tags_str.value.lastIndexOf(", ") != tags_str.value.length - 2) {
1095
1096                         tags_str.value = tags_str.value + ", ";
1097                 }
1098
1099                 tags_str.value = tags_str.value + tag + ", ";
1100
1101                 found_tags.selectedIndex = 0;
1102
1103         } catch (e) {
1104                 exception_error(e, "editTagsInsert");
1105         }
1106 }
1107
1108 function cdmWatchdog() {
1109
1110         try {
1111
1112                 var ctr = document.getElementById("headlinesInnerContainer");
1113
1114                 if (!ctr) return;
1115
1116                 var ids = new Array();
1117
1118                 var e = ctr.firstChild;
1119
1120                 while (e) {
1121                         if (e.className && e.className == "cdmArticleUnread" && e.id &&
1122                                         e.id.match("RROW-")) {
1123
1124                                 // article fits in viewport OR article is longer than viewport and
1125                                 // its bottom is visible
1126
1127                                 if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <=
1128                                                 ctr.scrollTop + ctr.offsetHeight) {
1129
1130 //                                      debug(e.id + " is visible " + e.offsetTop + "." +
1131 //                                              (e.offsetTop + e.offsetHeight) + " vs " + ctr.scrollTop + "." +
1132 //                                              (ctr.scrollTop + ctr.offsetHeight));
1133
1134                                         ids.push(e.id.replace("RROW-", ""));
1135
1136                                 } else if (e.offsetHeight > ctr.offsetHeight &&
1137                                                 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1138                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
1139
1140                                         ids.push(e.id.replace("RROW-", ""));
1141
1142                                 }
1143
1144                                 // method 2: article bottom is visible and is in upper 1/2 of the viewport
1145
1146 /*                              if (e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1147                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight/2) {
1148
1149                                         ids.push(e.id.replace("RROW-", ""));
1150
1151                                 } */
1152
1153                         }
1154
1155                         e = e.nextSibling;
1156                 }
1157
1158                 debug("cdmWatchdog, ids= " + ids.toString());
1159
1160                 if (ids.length > 0) {
1161
1162                         for (var i = 0; i < ids.length; i++) {
1163                                 var e = document.getElementById("RROW-" + ids[i]);
1164                                 if (e) {
1165                                         e.className = e.className.replace("Unread", "");
1166                                 }
1167                         }
1168
1169                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
1170                                 param_escape(ids.toString()) + "&cmode=0";
1171
1172                         new Ajax.Request(query, {
1173                                 onComplete: function(transport) {
1174                                         all_counters_callback2(transport);
1175                                 } });
1176
1177                 }
1178
1179                 _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 4000);
1180
1181         } catch (e) {
1182                 exception_error(e, "cdmWatchdog");
1183         }
1184
1185 }
1186
1187
1188 function cache_inject(id, article) {
1189         if (!cache_check(id)) {
1190                 debug("cache_article: miss: " + id);
1191
1192                 var cache_obj = new Array();
1193
1194                 cache_obj["id"] = id;
1195                 cache_obj["data"] = article;
1196
1197                 article_cache.push(cache_obj);
1198
1199         } else {
1200                 debug("cache_article: hit: " + id);
1201         }
1202 }
1203
1204 function cache_find(id) {
1205         for (var i = 0; i < article_cache.length; i++) {
1206                 if (article_cache[i]["id"] == id) {
1207                         return article_cache[i]["data"];
1208                 }
1209         }
1210         return false;
1211 }
1212
1213 function cache_check(id) {
1214         for (var i = 0; i < article_cache.length; i++) {
1215                 if (article_cache[i]["id"] == id) {
1216                         return true;
1217                 }
1218         }
1219         return false;
1220 }
1221
1222 function cache_expire() {
1223         while (article_cache.length > 20) {
1224                 article_cache.shift();
1225         }
1226 }
1227
1228 function cache_invalidate(id) {
1229         var i = 0
1230
1231         try {
1232
1233                 while (i < article_cache.length) {
1234                         if (article_cache[i]["id"] == id) {
1235                                 debug("cache_invalidate: removed id " + id);
1236                                 article_cache.splice(i, 1);
1237                                 return true;
1238                         }
1239                         i++;
1240                 }
1241                 debug("cache_invalidate: id not found: " + id);
1242                 return false;
1243         } catch (e) {
1244                 exception_error("cache_invalidate", e);
1245         }
1246 }
1247
1248 function getActiveArticleId() {
1249         return active_post_id;
1250 }
1251
1252 function cdmMouseIn(elem) {
1253         try {
1254                 if (elem.id && elem.id.match("RROW-")) {
1255                         var id = elem.id.replace("RROW-", "");
1256                         active_post_id = id;
1257                 }
1258         } catch (e) {
1259                 exception_error("cdmMouseIn", e);
1260         }
1261
1262 }
1263
1264 function cdmMouseOut(elem) {
1265         active_post_id = false;
1266 }
1267
1268 function headlines_scroll_handler() {
1269         try {
1270
1271                 var e = document.getElementById("headlinesInnerContainer");
1272
1273                 if (e.scrollTop + e.offsetHeight > e.scrollHeight - 300) {
1274                         if (!_infscroll_disable) {
1275                                 debug("more cowbell!");
1276                                 viewNextFeedPage();
1277                         }
1278                 }
1279
1280         } catch (e) {
1281                 exception_error("headlines_scroll_handler", e);
1282         }
1283 }
1284
1285 function catchupRelativeToArticle(below) {
1286
1287         try {
1288
1289                 if (!xmlhttp_ready(xmlhttp_rpc)) {
1290                         printLockingError();
1291                 }
1292
1293                 if (!getActiveArticleId()) {
1294                         alert(__("No article is selected."));
1295                         return;
1296                 }
1297
1298                 var visible_ids;
1299
1300                 if (document.getElementById("headlinesList")) {
1301                         visible_ids = getVisibleHeadlineIds();
1302                 } else {
1303                         visible_ids = cdmGetVisibleArticles();
1304                 }
1305
1306                 var ids_to_mark = new Array();
1307
1308                 if (!below) {
1309                         for (var i = 0; i < visible_ids.length; i++) {
1310                                 if (visible_ids[i] != getActiveArticleId()) {
1311                                         var e = document.getElementById("RROW-" + visible_ids[i]);
1312
1313                                         if (e && e.className.match("Unread")) {
1314                                                 ids_to_mark.push(visible_ids[i]);
1315                                         }
1316                                 } else {
1317                                         break;
1318                                 }
1319                         }
1320                 } else {
1321                         for (var i = visible_ids.length-1; i >= 0; i--) {
1322                                 if (visible_ids[i] != getActiveArticleId()) {
1323                                         var e = document.getElementById("RROW-" + visible_ids[i]);
1324
1325                                         if (e && e.className.match("Unread")) {
1326                                                 ids_to_mark.push(visible_ids[i]);
1327                                         }
1328                                 } else {
1329                                         break;
1330                                 }
1331                         }
1332                 }
1333
1334                 if (ids_to_mark.length == 0) {
1335                         alert(__("No articles found to mark"));
1336                 } else {
1337                         var msg = __("Mark %d article(s) as read?").replace("%d", ids_to_mark.length);
1338
1339                         if (confirm(msg)) {
1340
1341                                 for (var i = 0; i < ids_to_mark.length; i++) {
1342                                         var e = document.getElementById("RROW-" + ids_to_mark[i]);
1343                                         e.className = e.className.replace("Unread", "");
1344                                 }
1345
1346                                 var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
1347                                         param_escape(ids_to_mark.toString()) + "&cmode=0";
1348
1349                                 xmlhttp_rpc.open("GET", query, true);
1350                                 xmlhttp_rpc.onreadystatechange=catchup_callback;
1351                                 xmlhttp_rpc.send(null);
1352
1353                         }
1354                 }
1355
1356         } catch (e) {
1357                 exception_error("catchupRelativeToArticle", e);
1358         }
1359 }