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         try {
 202
 203                 cleanSelected("headlinesList");
 204
 205                 var crow = document.getElementById("RROW-" + id);
 206                 var article_is_unread = crow.className.match("Unread");
 207
 208                 crow.className = crow.className.replace("Unread", "");
 209
 210                 var upd_img_pic = document.getElementById("FUPDPIC-" + id);
 211
 212                 if (upd_img_pic) {
 213                         upd_img_pic.src = "images/blank_icon.gif";
 214                 }
 215
 216                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
 217                 markHeadline(id);
 218
 219         } catch (e) {
 220                 exception_error("showArticleInHeadlines", e);
 221         }
 222 }
 223
 224 function article_callback2(transport, id, feed_id) {
 225         try {
 226                 debug("article_callback2 " + id);
 227
 228                 if (transport.responseXML) {
 229
 230                         active_real_feed_id = feed_id;
 231                         active_post_id = id;
 232
 233                         showArticleInHeadlines(id);
 234
 235                         var reply = transport.responseXML.firstChild.firstChild;
 236
 237                         var articles = transport.responseXML.getElementsByTagName("article");
 238
 239                         for (var i = 0; i < articles.length; i++) {
 240                                 var a_id = articles[i].getAttribute("id");
 241
 242                                 debug("found id: " + a_id);
 243
 244                                 if (a_id == active_post_id) {
 245                                         debug("active article, rendering...");
 246                                         render_article(articles[i].firstChild.nodeValue);
 247                                 }
 248
 249                                 cache_inject(a_id, articles[i].firstChild.nodeValue);
 250                         }
 251
 252                 } else {
 253                         debug("article_callback: returned no XML object");
 254                         var f = document.getElementById("content-frame");
 255                         f.innerHTML = "<div class='whiteBox'>" + __('Could not display article (missing XML object)') + "</div>";
 256                 }
 257
 258                 var date = new Date();
 259                 last_article_view = date.getTime() / 1000;
 260
 261                 if (typeof correctPNG != 'undefined') {
 262                         correctPNG();
 263                 }
 264
 265                 if (_reload_feedlist_after_view) {
 266                         setTimeout('updateFeedList(false, false)', 50);
 267                         _reload_feedlist_after_view = false;
 268                 } else {
 269                         var counters = transport.responseXML.getElementsByTagName("counters")[0];
 270
 271                         if (counters) {
 272                                 debug("parsing piggybacked counters: " + counters);
 273                                 parse_counters(counters, false);
 274                         } else {
 275                                 debug("counters container not found in reply");
 276                         }
 277                 }
 278
 279                 notify("");
 280         } catch (e) {
 281                 exception_error("article_callback2", e);
 282         }
 283 }
 284
 285 function view(id, feed_id, skip_history) {
 286
 287         try {
 288                 debug("loading article: " + id + "/" + feed_id);
 289
 290                 var cached_article = cache_find(id);
 291
 292                 debug("cache check result: " + (cached_article != false));
 293
 294                 enableHotkeys();
 295
 296                 //setActiveFeedId(feed_id);
 297
 298                 var query = "backend.php?op=view&id=" + param_escape(id) +
 299                         "&feed=" + param_escape(feed_id);
 300
 301                 var date = new Date();
 302
 303 /*              if (!xmlhttp_ready(xmlhttp) && last_article_view < date.getTime() / 1000 - 15) {
 304                         debug("<b>xmlhttp seems to be stuck at view, aborting</b>");
 305                         xmlhttp.abort();
 306                         if (is_safari()) {
 307                                 debug("trying alternative reset method for Safari");
 308                                 xmlhttp = Ajax.getTransport();
 309                         }
 310                 }
 311
 312                 if (xmlhttp_ready(xmlhttp)) { */
 313
 314                 var neighbor_ids = getRelativePostIds(active_post_id);
 315
 316                 /* only request uncached articles */
 317
 318                 var cids_to_request = Array();
 319
 320                 for (var i = 0; i < neighbor_ids.length; i++) {
 321                         if (!cache_check(neighbor_ids[i])) {
 322                                 cids_to_request.push(neighbor_ids[i]);
 323                         }
 324                 }
 325
 326                 debug("additional ids: " + cids_to_request.toString());
 327
 328                 /* additional info for piggyback counters */
 329
 330                 if (tagsAreDisplayed()) {
 331                         query = query + "&omode=lt";
 332                 } else {
 333                         query = query + "&omode=flc";
 334                 }
 335
 336                 var date = new Date();
 337                 var timestamp = Math.round(date.getTime() / 1000);
 338                 query = query + "&ts=" + timestamp;
 339
 340                 query = query + "&cids=" + cids_to_request.toString();
 341
 342                 var crow = document.getElementById("RROW-" + id);
 343                 var article_is_unread = crow.className.match("Unread");
 344
 345                 showArticleInHeadlines(id);
 346
 347                 if (!cached_article) {
 348
 349                         notify_progress("Loading, please wait...");
 350
 351                 } else if (cached_article && article_is_unread) {
 352
 353                         query = query + "&mode=prefetch";
 354
 355                         render_article(cached_article);
 356
 357                 } else if (cached_article) {
 358
 359                         query = query + "&mode=prefetch_old";
 360                         render_article(cached_article);
 361                 }
 362
 363                 cache_expire();
 364
 365                 new Ajax.Request(query, {
 366                         onComplete: function(transport) {
 367                                 article_callback2(transport, id, feed_id);
 368                         } });
 369
 370         } catch (e) {
 371                 exception_error("view", e);
 372         }
 373 }
 374
 375 function tMark(id) {
 376         return toggleMark(id);
 377 }
 378
 379 function tPub(id) {
 380         return togglePub(id);
 381 }
 382
 383 function tMark_afh_off(effect) {
 384         try {
 385                 var elem = effect.effects[0].element;
 386
 387                 debug("tMark_afh_off : " + elem.id);
 388
 389                 if (elem) {
 390                         elem.src = elem.src.replace("mark_set", "mark_unset");
 391                         elem.alt = __("Star article");
 392                         Element.show(elem);
 393                 }
 394
 395         } catch (e) {
 396                 exception_error("tMark_afh_off", e);
 397         }
 398 }
 399
 400 function tPub_afh_off(effect) {
 401         try {
 402                 var elem = effect.effects[0].element;
 403
 404                 debug("tPub_afh_off : " + elem.id);
 405
 406                 if (elem) {
 407                         elem.src = elem.src.replace("pub_set", "pub_unset");
 408                         elem.alt = __("Publish article");
 409                         Element.show(elem);
 410                 }
 411
 412         } catch (e) {
 413                 exception_error("tPub_afh_off", e);
 414         }
 415 }
 416
 417 function toggleMark(id, client_only, no_effects) {
 418
 419         try {
 420
 421                 var query = "backend.php?op=rpc&id=" + id + "&subop=mark";
 422
 423                 query = query + "&afid=" + getActiveFeedId();
 424
 425                 if (tagsAreDisplayed()) {
 426                         query = query + "&omode=tl";
 427                 } else {
 428                         query = query + "&omode=flc";
 429                 }
 430
 431                 var mark_img = document.getElementById("FMPIC-" + id);
 432                 var vfeedu = document.getElementById("FEEDU--1");
 433                 var crow = document.getElementById("RROW-" + id);
 434
 435                 if (mark_img.src.match("mark_unset")) {
 436                         mark_img.src = mark_img.src.replace("mark_unset", "mark_set");
 437                         mark_img.alt = __("Unstar article");
 438                         query = query + "&mark=1";
 439
 440 /*                      if (vfeedu && crow.className.match("Unread")) {
 441                                 vfeedu.innerHTML = (+vfeedu.innerHTML) + 1;
 442                         } */
 443
 444                 } else {
 445                         //mark_img.src = "images/mark_unset.png";
 446                         mark_img.alt = __("Please wait...");
 447                         query = query + "&mark=0";
 448
 449 /*                      if (vfeedu && crow.className.match("Unread")) {
 450                                 vfeedu.innerHTML = (+vfeedu.innerHTML) - 1;
 451                         } */
 452
 453                         if (document.getElementById("headlinesList") && !no_effects) {
 454                                 Effect.Puff(mark_img, {duration : 0.25, afterFinish: tMark_afh_off});
 455                         } else {
 456                                 mark_img.src = mark_img.src.replace("mark_set", "mark_unset");
 457                                 mark_img.alt = __("Star article");
 458                         }
 459                 }
 460
 461 /*              var vfeedctr = document.getElementById("FEEDCTR--1");
 462                 var vfeedr = document.getElementById("FEEDR--1");
 463
 464                 if (vfeedu && vfeedctr) {
 465                         if ((+vfeedu.innerHTML) > 0) {
 466                                 if (crow.className.match("Unread") && !vfeedr.className.match("Unread")) {
 467                                         vfeedr.className = vfeedr.className + "Unread";
 468                                         vfeedctr.className = "odd";
 469                                 }
 470                         } else {
 471                                 vfeedctr.className = "invisible";
 472                                 vfeedr.className = vfeedr.className.replace("Unread", "");
 473                         }
 474                 }
 475
 476                 debug("toggle starred for aid " + id);
 477
 478                 //new Ajax.Request(query); */
 479
 480                 if (!client_only) {
 481                         debug(query);
 482
 483                         new Ajax.Request(query, {
 484                                 onComplete: function(transport) {
 485                                         all_counters_callback2(transport);
 486                                 } });
 487
 488                 }
 489
 490         } catch (e) {
 491                 exception_error("toggleMark", e);
 492         }
 493 }
 494
 495 function togglePub(id, client_only, no_effects) {
 496
 497         try {
 498
 499                 var query = "backend.php?op=rpc&id=" + id + "&subop=publ";
 500
 501                 query = query + "&afid=" + getActiveFeedId();
 502
 503                 if (tagsAreDisplayed()) {
 504                         query = query + "&omode=tl";
 505                 } else {
 506                         query = query + "&omode=flc";
 507                 }
 508
 509                 var mark_img = document.getElementById("FPPIC-" + id);
 510                 var vfeedu = document.getElementById("FEEDU--2");
 511                 var crow = document.getElementById("RROW-" + id);
 512
 513                 if (mark_img.src.match("pub_unset")) {
 514                         mark_img.src = mark_img.src.replace("pub_unset", "pub_set");
 515                         mark_img.alt = __("Unpublish article");
 516                         query = query + "&pub=1";
 517
 518 /*                      if (vfeedu && crow.className.match("Unread")) {
 519                                 vfeedu.innerHTML = (+vfeedu.innerHTML) + 1;
 520                         } */
 521
 522                 } else {
 523                         //mark_img.src = "images/pub_unset.png";
 524                         mark_img.alt = __("Please wait...");
 525                         query = query + "&pub=0";
 526
 527 /*                      if (vfeedu && crow.className.match("Unread")) {
 528                                 vfeedu.innerHTML = (+vfeedu.innerHTML) - 1;
 529                         } */
 530
 531                         if (document.getElementById("headlinesList") && !no_effects) {
 532                                 Effect.Puff(mark_img, {duration : 0.25, afterFinish: tPub_afh_off});
 533                         } else {
 534                                 mark_img.src = mark_img.src.replace("pub_set", "pub_unset");
 535                                 mark_img.alt = __("Publish article");
 536                         }
 537                 }
 538
 539 /*              var vfeedctr = document.getElementById("FEEDCTR--2");
 540                 var vfeedr = document.getElementById("FEEDR--2");
 541
 542                 if (vfeedu && vfeedctr) {
 543                         if ((+vfeedu.innerHTML) > 0) {
 544                                 if (crow.className.match("Unread") && !vfeedr.className.match("Unread")) {
 545                                         vfeedr.className = vfeedr.className + "Unread";
 546                                         vfeedctr.className = "odd";
 547                                 }
 548                         } else {
 549                                 vfeedctr.className = "invisible";
 550                                 vfeedr.className = vfeedr.className.replace("Unread", "");
 551                         }
 552                 }
 553
 554                 debug("toggle published for aid " + id);
 555
 556                 new Ajax.Request(query); */
 557
 558                 if (!client_only) {
 559                         new Ajax.Request(query, {
 560                                 onComplete: function(transport) {
 561                                         all_counters_callback2(transport);
 562                                 } });
 563                 }
 564
 565         } catch (e) {
 566
 567                 exception_error("togglePub", e);
 568         }
 569 }
 570
 571 function correctHeadlinesOffset(id) {
 572
 573         try {
 574
 575                 var hlist = document.getElementById("headlinesList");
 576                 var container = document.getElementById("headlinesInnerContainer");
 577                 var row = document.getElementById("RROW-" + id);
 578
 579                 var viewport = container.offsetHeight;
 580
 581                 var rel_offset_top = row.offsetTop - container.scrollTop;
 582                 var rel_offset_bottom = row.offsetTop + row.offsetHeight - container.scrollTop;
 583
 584                 debug("Rtop: " + rel_offset_top + " Rbtm: " + rel_offset_bottom);
 585                 debug("Vport: " + viewport);
 586
 587                 if (rel_offset_top <= 0 || rel_offset_top > viewport) {
 588                         container.scrollTop = row.offsetTop;
 589                 } else if (rel_offset_bottom > viewport) {
 590
 591                         /* doesn't properly work with Opera in some cases because
 592                                 Opera fucks up element scrolling */
 593
 594                         container.scrollTop = row.offsetTop + row.offsetHeight - viewport;
 595                 }
 596
 597         } catch (e) {
 598                 exception_error("correctHeadlinesOffset", e);
 599         }
 600
 601 }
 602
 603 function moveToPost(mode) {
 604
 605         // check for combined mode
 606         if (!document.getElementById("headlinesList"))
 607                 return;
 608
 609         var rows = getVisibleHeadlineIds();
 610
 611         var prev_id = false;
 612         var next_id = false;
 613
 614         if (!document.getElementById('RROW-' + active_post_id)) {
 615                 active_post_id = false;
 616         }
 617
 618         if (active_post_id == false) {
 619                 next_id = getFirstVisibleHeadlineId();
 620                 prev_id = getLastVisibleHeadlineId();
 621         } else {
 622                 for (var i = 0; i < rows.length; i++) {
 623                         if (rows[i] == active_post_id) {
 624                                 prev_id = rows[i-1];
 625                                 next_id = rows[i+1];
 626                         }
 627                 }
 628         }
 629
 630         if (mode == "next") {
 631                 if (next_id) {
 632                         correctHeadlinesOffset(next_id);
 633                         view(next_id, getActiveFeedId());
 634                 }
 635         }
 636
 637         if (mode == "prev") {
 638                 if (prev_id) {
 639                         correctHeadlinesOffset(prev_id);
 640                         view(prev_id, getActiveFeedId());
 641                 }
 642         }
 643 }
 644
 645 function toggleUnread(id, cmode) {
 646         try {
 647
 648                 var row = document.getElementById("RROW-" + id);
 649                 if (row) {
 650                         var nc = row.className;
 651                         nc = nc.replace("Unread", "");
 652                         nc = nc.replace("Selected", "");
 653
 654                         if (row.className.match("Unread")) {
 655                                 row.className = nc;
 656                         } else {
 657                                 row.className = nc + "Unread";
 658                         }
 659
 660                         if (!cmode) cmode = 2;
 661
 662                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
 663                                 param_escape(id) + "&cmode=" + param_escape(cmode);
 664
 665 //                      notify_progress("Loading, please wait...");
 666
 667                         new Ajax.Request(query, {
 668                                 onComplete: function(transport) {
 669                                         all_counters_callback2(transport);
 670                                 } });
 671
 672                 }
 673
 674
 675         } catch (e) {
 676                 exception_error("toggleUnread", e);
 677         }
 678 }
 679
 680 function selectionToggleUnread(cdm_mode, set_state, callback_func, no_error) {
 681         try {
 682 /*              if (!xmlhttp_ready(xmlhttp_rpc)) {
 683                         printLockingError();
 684                         return;
 685                 } */
 686
 687                 var rows;
 688
 689                 if (cdm_mode) {
 690                         rows = cdmGetSelectedArticles();
 691                 } else {
 692                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 693                 }
 694
 695                 if (rows.length == 0 && !no_error) {
 696                         alert(__("No articles are selected."));
 697                         return;
 698                 }
 699
 700                 for (i = 0; i < rows.length; i++) {
 701                         var row = document.getElementById("RROW-" + rows[i]);
 702                         if (row) {
 703                                 var nc = row.className;
 704                                 nc = nc.replace("Unread", "");
 705                                 nc = nc.replace("Selected", "");
 706
 707                                 if (set_state == undefined) {
 708                                         if (row.className.match("Unread")) {
 709                                                 row.className = nc + "Selected";
 710                                         } else {
 711                                                 row.className = nc + "UnreadSelected";
 712                                         }
 713                                 }
 714
 715                                 if (set_state == false) {
 716                                         row.className = nc + "Selected";
 717                                 }
 718
 719                                 if (set_state == true) {
 720                                         row.className = nc + "UnreadSelected";
 721                                 }
 722                         }
 723                 }
 724
 725                 if (rows.length > 0) {
 726
 727                         var cmode = "";
 728
 729                         if (set_state == undefined) {
 730                                 cmode = "2";
 731                         } else if (set_state == true) {
 732                                 cmode = "1";
 733                         } else if (set_state == false) {
 734                                 cmode = "0";
 735                         }
 736
 737                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
 738                                 param_escape(rows.toString()) + "&cmode=" + cmode;
 739
 740 //                      _catchup_callback_func = callback_func;
 741
 742                         debug(callback_func);
 743
 744                         notify_progress("Loading, please wait...");
 745
 746 /*                      xmlhttp_rpc.open("GET", query, true);
 747                         xmlhttp_rpc.onreadystatechange=catchup_callback;
 748                         xmlhttp_rpc.send(null); */
 749
 750                         new Ajax.Request(query, {
 751                                 onComplete: function(transport) {
 752                                         catchup_callback2(transport, callback_func);
 753                                 } });
 754
 755                 }
 756
 757         } catch (e) {
 758                 exception_error("selectionToggleUnread", e);
 759         }
 760 }
 761
 762 function selectionToggleMarked(cdm_mode) {
 763         try {
 764
 765                 var rows;
 766
 767                 if (cdm_mode) {
 768                         rows = cdmGetSelectedArticles();
 769                 } else {
 770                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 771                 }
 772
 773                 if (rows.length == 0) {
 774                         alert(__("No articles are selected."));
 775                         return;
 776                 }
 777
 778                 for (i = 0; i < rows.length; i++) {
 779                         toggleMark(rows[i], true, true);
 780                 }
 781
 782                 if (rows.length > 0) {
 783
 784                         var query = "backend.php?op=rpc&subop=markSelected&ids=" +
 785                                 param_escape(rows.toString()) + "&cmode=2";
 786
 787                         query = query + "&afid=" + getActiveFeedId();
 788
 789 /*                      if (tagsAreDisplayed()) {
 790                                 query = query + "&omode=tl";
 791                         } else {
 792                                 query = query + "&omode=flc";
 793                         } */
 794
 795                         query = query + "&omode=lc";
 796
 797                         new Ajax.Request(query, {
 798                                 onComplete: function(transport) {
 799                                         all_counters_callback2(transport);
 800                                 } });
 801
 802                 }
 803
 804         } catch (e) {
 805                 exception_error("selectionToggleMarked", e);
 806         }
 807 }
 808
 809 function selectionTogglePublished(cdm_mode) {
 810         try {
 811
 812                 var rows;
 813
 814                 if (cdm_mode) {
 815                         rows = cdmGetSelectedArticles();
 816                 } else {
 817                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 818                 }
 819
 820                 if (rows.length == 0) {
 821                         alert(__("No articles are selected."));
 822                         return;
 823                 }
 824
 825                 for (i = 0; i < rows.length; i++) {
 826                         togglePub(rows[i], true, true);
 827                 }
 828
 829                 if (rows.length > 0) {
 830
 831                         var query = "backend.php?op=rpc&subop=publishSelected&ids=" +
 832                                 param_escape(rows.toString()) + "&cmode=2";
 833
 834                         query = query + "&afid=" + getActiveFeedId();
 835
 836 /*                      if (tagsAreDisplayed()) {
 837                                 query = query + "&omode=tl";
 838                         } else {
 839                                 query = query + "&omode=flc";
 840                         } */
 841
 842                         query = query + "&omode=lc";
 843
 844                         new Ajax.Request(query, {
 845                                 onComplete: function(transport) {
 846                                         all_counters_callback2(transport);
 847                                 } });
 848
 849                 }
 850
 851         } catch (e) {
 852                 exception_error("selectionToggleMarked", e);
 853         }
 854 }
 855
 856 function cdmGetSelectedArticles() {
 857         var sel_articles = new Array();
 858         var container = document.getElementById("headlinesInnerContainer");
 859
 860         for (i = 0; i < container.childNodes.length; i++) {
 861                 var child = container.childNodes[i];
 862
 863                 if (child.id.match("RROW-") && child.className.match("Selected")) {
 864                         var c_id = child.id.replace("RROW-", "");
 865                         sel_articles.push(c_id);
 866                 }
 867         }
 868
 869         return sel_articles;
 870 }
 871
 872 function cdmGetVisibleArticles() {
 873         var sel_articles = new Array();
 874         var container = document.getElementById("headlinesInnerContainer");
 875
 876         for (i = 0; i < container.childNodes.length; i++) {
 877                 var child = container.childNodes[i];
 878
 879                 if (child.id.match("RROW-")) {
 880                         var c_id = child.id.replace("RROW-", "");
 881                         sel_articles.push(c_id);
 882                 }
 883         }
 884
 885         return sel_articles;
 886 }
 887
 888 function cdmGetUnreadArticles() {
 889         var sel_articles = new Array();
 890         var container = document.getElementById("headlinesInnerContainer");
 891
 892         for (i = 0; i < container.childNodes.length; i++) {
 893                 var child = container.childNodes[i];
 894
 895                 if (child.id.match("RROW-") && child.className.match("Unread")) {
 896                         var c_id = child.id.replace("RROW-", "");
 897                         sel_articles.push(c_id);
 898                 }
 899         }
 900
 901         return sel_articles;
 902 }
 903
 904
 905 // mode = all,none,unread
 906 function cdmSelectArticles(mode) {
 907         var container = document.getElementById("headlinesInnerContainer");
 908
 909         for (i = 0; i < container.childNodes.length; i++) {
 910                 var child = container.childNodes[i];
 911
 912                 if (child.id.match("RROW-")) {
 913                         var aid = child.id.replace("RROW-", "");
 914
 915                         var cb = document.getElementById("RCHK-" + aid);
 916
 917                         if (mode == "all") {
 918                                 if (!child.className.match("Selected")) {
 919                                         child.className = child.className + "Selected";
 920                                         cb.checked = true;
 921                                 }
 922                         } else if (mode == "unread") {
 923                                 if (child.className.match("Unread") && !child.className.match("Selected")) {
 924                                         child.className = child.className + "Selected";
 925                                         cb.checked = true;
 926                                 }
 927                         } else {
 928                                 child.className = child.className.replace("Selected", "");
 929                                 cb.checked = false;
 930                         }
 931                 }
 932         }
 933 }
 934
 935 function catchupPage() {
 936
 937         var fn = getFeedName(getActiveFeedId(), active_feed_is_cat);
 938
 939         var str = __("Mark all visible articles in %s as read?");
 940
 941         str = str.replace("%s", fn);
 942
 943         if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
 944                 return;
 945         }
 946
 947         if (document.getElementById("headlinesList")) {
 948                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, 'Unread', true);
 949                 selectionToggleUnread(false, false, 'viewCurrentFeed()', true);
 950                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
 951         } else {
 952                 cdmSelectArticles('all');
 953                 selectionToggleUnread(true, false, 'viewCurrentFeed()', true)
 954                 cdmSelectArticles('none');
 955         }
 956 }
 957
 958 function catchupSelection() {
 959
 960         try {
 961
 962                 var rows;
 963
 964                 if (document.getElementById("headlinesList")) {
 965                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 966                 } else {
 967                         rows = cdmGetSelectedArticles();
 968                 }
 969
 970                 if (rows.length == 0) {
 971                         alert(__("No articles are selected."));
 972                         return;
 973                 }
 974
 975
 976                 var fn = getFeedName(getActiveFeedId(), active_feed_is_cat);
 977
 978                 var str = __("Mark %d selected articles in %s as read?");
 979
 980                 str = str.replace("%d", rows.length);
 981                 str = str.replace("%s", fn);
 982
 983                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
 984                         return;
 985                 }
 986
 987                 if (document.getElementById("headlinesList")) {
 988                         selectionToggleUnread(false, false, 'viewCurrentFeed()', true);
 989         //              selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
 990                 } else {
 991                         selectionToggleUnread(true, false, 'viewCurrentFeed()', true)
 992         //              cdmSelectArticles('none');
 993                 }
 994
 995         } catch (e) {
 996                 exception_error("catchupSelection", e);
 997         }
 998 }
 999
1000
1001 function labelFromSearch(search, search_mode, match_on, feed_id, is_cat) {
1002
1003         if (!xmlhttp_ready(xmlhttp_rpc)) {
1004                 printLockingError();
1005         }
1006
1007         var title = prompt(__("Please enter label title:"), "");
1008
1009         if (title) {
1010
1011                 var query = "backend.php?op=labelFromSearch&search=" + param_escape(search) +
1012                         "&smode=" + param_escape(search_mode) + "&match=" + param_escape(match_on) +
1013                         "&feed=" + param_escape(feed_id) + "&is_cat=" + param_escape(is_cat) +
1014                         "&title=" + param_escape(title);
1015
1016                 debug("LFS: " + query);
1017
1018                 xmlhttp_rpc.open("GET", query, true);
1019                 xmlhttp_rpc.onreadystatechange=dlg_frefresh_callback;
1020                 xmlhttp_rpc.send(null);
1021         }
1022
1023 }
1024
1025 function editArticleTags(id, feed_id, cdm_enabled) {
1026         _tag_active_post_id = id;
1027         _tag_active_feed_id = feed_id;
1028         _tag_active_cdm = cdm_enabled;
1029
1030         cache_invalidate(id);
1031
1032         try {
1033                 _tag_cdm_scroll = document.getElementById("headlinesInnerContainer").scrollTop;
1034         } catch (e) { }
1035         displayDlg('editArticleTags', id);
1036 }
1037
1038
1039 function tag_saved_callback() {
1040         if (xmlhttp_rpc.readyState == 4) {
1041                 try {
1042                         debug("in tag_saved_callback");
1043
1044                         closeInfoBox();
1045                         notify("");
1046
1047                         if (tagsAreDisplayed()) {
1048                                 _reload_feedlist_after_view = true;
1049                         }
1050
1051                         if (!_tag_active_cdm) {
1052                                 if (active_post_id == _tag_active_post_id) {
1053                                         debug("reloading current article");
1054                                         view(_tag_active_post_id, _tag_active_feed_id);
1055                                 }
1056                         } else {
1057                                 debug("reloading current feed");
1058                                 viewCurrentFeed();
1059                         }
1060
1061                 } catch (e) {
1062                         exception_error("catchup_callback", e);
1063                 }
1064         }
1065 }
1066
1067 function editTagsSave() {
1068
1069         if (!xmlhttp_ready(xmlhttp_rpc)) {
1070                 printLockingError();
1071         }
1072
1073         notify_progress("Saving article tags...");
1074
1075         var form = document.forms["tag_edit_form"];
1076
1077         var query = Form.serialize("tag_edit_form");
1078
1079         query = "backend.php?op=rpc&subop=setArticleTags&" + query;
1080
1081         debug(query);
1082
1083         xmlhttp_rpc.open("GET", query, true);
1084         xmlhttp_rpc.onreadystatechange=tag_saved_callback;
1085         xmlhttp_rpc.send(null);
1086
1087 }
1088
1089 function editTagsInsert() {
1090         try {
1091
1092                 var form = document.forms["tag_edit_form"];
1093
1094                 var found_tags = form.found_tags;
1095                 var tags_str = form.tags_str;
1096
1097                 var tag = found_tags[found_tags.selectedIndex].value;
1098
1099                 if (tags_str.value.length > 0 &&
1100                                 tags_str.value.lastIndexOf(", ") != tags_str.value.length - 2) {
1101
1102                         tags_str.value = tags_str.value + ", ";
1103                 }
1104
1105                 tags_str.value = tags_str.value + tag + ", ";
1106
1107                 found_tags.selectedIndex = 0;
1108
1109         } catch (e) {
1110                 exception_error(e, "editTagsInsert");
1111         }
1112 }
1113
1114 function cdmWatchdog() {
1115
1116         try {
1117
1118                 var ctr = document.getElementById("headlinesInnerContainer");
1119
1120                 if (!ctr) return;
1121
1122                 var ids = new Array();
1123
1124                 var e = ctr.firstChild;
1125
1126                 while (e) {
1127                         if (e.className && e.className == "cdmArticleUnread" && e.id &&
1128                                         e.id.match("RROW-")) {
1129
1130                                 // article fits in viewport OR article is longer than viewport and
1131                                 // its bottom is visible
1132
1133                                 if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <=
1134                                                 ctr.scrollTop + ctr.offsetHeight) {
1135
1136 //                                      debug(e.id + " is visible " + e.offsetTop + "." +
1137 //                                              (e.offsetTop + e.offsetHeight) + " vs " + ctr.scrollTop + "." +
1138 //                                              (ctr.scrollTop + ctr.offsetHeight));
1139
1140                                         ids.push(e.id.replace("RROW-", ""));
1141
1142                                 } else if (e.offsetHeight > ctr.offsetHeight &&
1143                                                 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1144                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
1145
1146                                         ids.push(e.id.replace("RROW-", ""));
1147
1148                                 }
1149
1150                                 // method 2: article bottom is visible and is in upper 1/2 of the viewport
1151
1152 /*                              if (e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1153                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight/2) {
1154
1155                                         ids.push(e.id.replace("RROW-", ""));
1156
1157                                 } */
1158
1159                         }
1160
1161                         e = e.nextSibling;
1162                 }
1163
1164                 debug("cdmWatchdog, ids= " + ids.toString());
1165
1166                 if (ids.length > 0) {
1167
1168                         for (var i = 0; i < ids.length; i++) {
1169                                 var e = document.getElementById("RROW-" + ids[i]);
1170                                 if (e) {
1171                                         e.className = e.className.replace("Unread", "");
1172                                 }
1173                         }
1174
1175                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
1176                                 param_escape(ids.toString()) + "&cmode=0";
1177
1178                         new Ajax.Request(query, {
1179                                 onComplete: function(transport) {
1180                                         all_counters_callback2(transport);
1181                                 } });
1182
1183                 }
1184
1185                 _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 4000);
1186
1187         } catch (e) {
1188                 exception_error(e, "cdmWatchdog");
1189         }
1190
1191 }
1192
1193
1194 function cache_inject(id, article) {
1195         if (!cache_check(id)) {
1196                 debug("cache_article: miss: " + id);
1197
1198                 var cache_obj = new Array();
1199
1200                 cache_obj["id"] = id;
1201                 cache_obj["data"] = article;
1202
1203                 article_cache.push(cache_obj);
1204
1205         } else {
1206                 debug("cache_article: hit: " + id);
1207         }
1208 }
1209
1210 function cache_find(id) {
1211         for (var i = 0; i < article_cache.length; i++) {
1212                 if (article_cache[i]["id"] == id) {
1213                         return article_cache[i]["data"];
1214                 }
1215         }
1216         return false;
1217 }
1218
1219 function cache_check(id) {
1220         for (var i = 0; i < article_cache.length; i++) {
1221                 if (article_cache[i]["id"] == id) {
1222                         return true;
1223                 }
1224         }
1225         return false;
1226 }
1227
1228 function cache_expire() {
1229         while (article_cache.length > 20) {
1230                 article_cache.shift();
1231         }
1232 }
1233
1234 function cache_invalidate(id) {
1235         var i = 0
1236
1237         try {
1238
1239                 while (i < article_cache.length) {
1240                         if (article_cache[i]["id"] == id) {
1241                                 debug("cache_invalidate: removed id " + id);
1242                                 article_cache.splice(i, 1);
1243                                 return true;
1244                         }
1245                         i++;
1246                 }
1247                 debug("cache_invalidate: id not found: " + id);
1248                 return false;
1249         } catch (e) {
1250                 exception_error("cache_invalidate", e);
1251         }
1252 }
1253
1254 function getActiveArticleId() {
1255         return active_post_id;
1256 }
1257
1258 function cdmMouseIn(elem) {
1259         try {
1260                 if (elem.id && elem.id.match("RROW-")) {
1261                         var id = elem.id.replace("RROW-", "");
1262                         active_post_id = id;
1263                 }
1264         } catch (e) {
1265                 exception_error("cdmMouseIn", e);
1266         }
1267
1268 }
1269
1270 function cdmMouseOut(elem) {
1271         active_post_id = false;
1272 }
1273
1274 function headlines_scroll_handler() {
1275         try {
1276
1277                 var e = document.getElementById("headlinesInnerContainer");
1278
1279                 if (e.scrollTop + e.offsetHeight > e.scrollHeight - 300) {
1280                         if (!_infscroll_disable) {
1281                                 debug("more cowbell!");
1282                                 viewNextFeedPage();
1283                         }
1284                 }
1285
1286         } catch (e) {
1287                 exception_error("headlines_scroll_handler", e);
1288         }
1289 }
1290
1291 function catchupRelativeToArticle(below) {
1292
1293         try {
1294
1295                 if (!xmlhttp_ready(xmlhttp_rpc)) {
1296                         printLockingError();
1297                 }
1298
1299                 if (!getActiveArticleId()) {
1300                         alert(__("No article is selected."));
1301                         return;
1302                 }
1303
1304                 var visible_ids;
1305
1306                 if (document.getElementById("headlinesList")) {
1307                         visible_ids = getVisibleHeadlineIds();
1308                 } else {
1309                         visible_ids = cdmGetVisibleArticles();
1310                 }
1311
1312                 var ids_to_mark = new Array();
1313
1314                 if (!below) {
1315                         for (var i = 0; i < visible_ids.length; i++) {
1316                                 if (visible_ids[i] != getActiveArticleId()) {
1317                                         var e = document.getElementById("RROW-" + visible_ids[i]);
1318
1319                                         if (e && e.className.match("Unread")) {
1320                                                 ids_to_mark.push(visible_ids[i]);
1321                                         }
1322                                 } else {
1323                                         break;
1324                                 }
1325                         }
1326                 } else {
1327                         for (var i = visible_ids.length-1; i >= 0; i--) {
1328                                 if (visible_ids[i] != getActiveArticleId()) {
1329                                         var e = document.getElementById("RROW-" + visible_ids[i]);
1330
1331                                         if (e && e.className.match("Unread")) {
1332                                                 ids_to_mark.push(visible_ids[i]);
1333                                         }
1334                                 } else {
1335                                         break;
1336                                 }
1337                         }
1338                 }
1339
1340                 if (ids_to_mark.length == 0) {
1341                         alert(__("No articles found to mark"));
1342                 } else {
1343                         var msg = __("Mark %d article(s) as read?").replace("%d", ids_to_mark.length);
1344
1345                         if (confirm(msg)) {
1346
1347                                 for (var i = 0; i < ids_to_mark.length; i++) {
1348                                         var e = document.getElementById("RROW-" + ids_to_mark[i]);
1349                                         e.className = e.className.replace("Unread", "");
1350                                 }
1351
1352                                 var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
1353                                         param_escape(ids_to_mark.toString()) + "&cmode=0";
1354
1355                                 xmlhttp_rpc.open("GET", query, true);
1356                                 xmlhttp_rpc.onreadystatechange=catchup_callback;
1357                                 xmlhttp_rpc.send(null);
1358
1359                         }
1360                 }
1361
1362         } catch (e) {
1363                 exception_error("catchupRelativeToArticle", e);
1364         }
1365 }