viewfeed.js

   1 var active_post_id = false;
   2 var _catchup_callback_func = false;
   3 var last_article_view = false;
   4 var active_real_feed_id = false;
   5
   6 var _tag_active_post_id = false;
   7 var _tag_active_feed_id = false;
   8 var _tag_active_cdm = false;
   9
  10 // FIXME: kludge, to restore scrollTop after tag editor terminates
  11 var _tag_cdm_scroll = false;
  12
  13 // FIXME: kludges, needs proper implementation
  14 var _reload_feedlist_after_view = false;
  15
  16 var _cdm_wd_timeout = false;
  17 var _cdm_wd_vishist = new Array();
  18
  19 var article_cache = new Array();
  20
  21 function catchup_callback() {
  22         if (xmlhttp_rpc.readyState == 4) {
  23                 try {
  24                         debug("catchup_callback");
  25                         notify("");
  26                         all_counters_callback();
  27                         if (_catchup_callback_func) {
  28                                 setTimeout(_catchup_callback_func, 10);
  29                         }
  30                 } catch (e) {
  31                         exception_error("catchup_callback", e);
  32                 }
  33         }
  34 }
  35
  36 function headlines_callback() {
  37         if (xmlhttp.readyState == 4) {
  38                 debug("headlines_callback");
  39                 var f = document.getElementById("headlines-frame");
  40                 try {
  41                         if (feed_cur_page == 0) {
  42                                 debug("resetting headlines scrollTop");
  43                                 f.scrollTop = 0;
  44                         }
  45                 } catch (e) { };
  46
  47                 if (xmlhttp.responseXML) {
  48                         var headlines = xmlhttp.responseXML.getElementsByTagName("headlines")[0];
  49                         var counters = xmlhttp.responseXML.getElementsByTagName("counters")[0];
  50                         var articles = xmlhttp.responseXML.getElementsByTagName("article");
  51                         var runtime_info = xmlhttp.responseXML.getElementsByTagName("runtime-info");
  52
  53                         if (feed_cur_page == 0) {
  54                                 if (headlines) {
  55                                         f.innerHTML = headlines.firstChild.nodeValue;
  56                                 } else {
  57                                         debug("headlines_callback: returned no data");
  58                                 f.innerHTML = "<div class='whiteBox'>" + __('Could not update headlines (missing XML data)') + "</div>";
  59
  60                                 }
  61                         } else {
  62                                 if (headlines) {
  63                                         debug("adding some more headlines...");
  64
  65                                         var c = document.getElementById("headlinesList");
  66
  67                                         if (!c) {
  68                                                 c = document.getElementById("headlinesInnerContainer");
  69                                         }
  70
  71                                         c.innerHTML = c.innerHTML + headlines.firstChild.nodeValue;
  72                                 } else {
  73                                         debug("headlines_callback: returned no data");
  74                                         notify_error("Error while trying to load more headlines");
  75                                 }
  76
  77                         }
  78
  79                         if (articles) {
  80                                 for (var i = 0; i < articles.length; i++) {
  81                                         var a_id = articles[i].getAttribute("id");
  82                                         debug("found id: " + a_id);
  83                                         cache_inject(a_id, articles[i].firstChild.nodeValue);
  84                                 }
  85                         } else {
  86                                 debug("no cached articles received");
  87                         }
  88
  89                         if (counters) {
  90                                 debug("parsing piggybacked counters: " + counters);
  91                                 parse_counters(counters, false);
  92                         } else {
  93                                 debug("counters container not found in reply");
  94                         }
  95
  96                         if (runtime_info) {
  97                                 debug("parsing runtime info: " + runtime_info[0]);
  98                                 parse_runtime_info(runtime_info[0]);
  99                         } else {
 100                                 debug("counters container not found in reply");
 101                         }
 102
 103                 } else {
 104                         debug("headlines_callback: returned no XML object");
 105                         f.innerHTML = "<div class='whiteBox'>" + __('Could not update headlines (missing XML object)') + "</div>";
 106                 }
 107
 108                 if (typeof correctPNG != 'undefined') {
 109                         correctPNG();
 110                 }
 111
 112                 if (_cdm_wd_timeout) window.clearTimeout(_cdm_wd_timeout);
 113
 114                 if (!document.getElementById("headlinesList") &&
 115                                 getInitParam("cdm_auto_catchup") == 1) {
 116                         debug("starting CDM watchdog");
 117                         _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 5000);
 118                         _cdm_wd_vishist = new Array();
 119                 } else {
 120                         debug("not in CDM mode or watchdog disabled");
 121                 }
 122
 123                 if (_tag_cdm_scroll) {
 124                         try {
 125                                 document.getElementById("headlinesInnerContainer").scrollTop = _tag_cdm_scroll;
 126                                 _tag_cdm_scroll = false;
 127                                 debug("resetting headlinesInner scrollTop");
 128
 129                         } catch (e) { }
 130                 }
 131
 132                 notify("");
 133         }
 134 }
 135
 136 function render_article(article) {
 137         try {
 138                 var f = document.getElementById("content-frame");
 139                 try {
 140                         f.scrollTop = 0;
 141                 } catch (e) { };
 142
 143                 f.innerHTML = article;
 144
 145         } catch (e) {
 146                 exception_error("render_article", e);
 147         }
 148 }
 149
 150 function article_callback() {
 151         if (xmlhttp.readyState == 4) {
 152                 debug("article_callback");
 153
 154                 try {
 155                         if (xmlhttp.responseXML) {
 156                                 var reply = xmlhttp.responseXML.firstChild.firstChild;
 157
 158                                 var articles = xmlhttp.responseXML.getElementsByTagName("article");
 159
 160                                 for (var i = 0; i < articles.length; i++) {
 161                                         var a_id = articles[i].getAttribute("id");
 162
 163                                         debug("found id: " + a_id);
 164
 165                                         if (a_id == active_post_id) {
 166                                                 debug("active article, rendering...");
 167                                                 render_article(articles[i].firstChild.nodeValue);
 168                                         }
 169
 170                                         cache_inject(a_id, articles[i].firstChild.nodeValue);
 171                                 }
 172
 173                         } else {
 174                                 debug("article_callback: returned no XML object");
 175                                 var f = document.getElementById("content-frame");
 176                                 f.innerHTML = "<div class='whiteBox'>" + __('Could not display article (missing XML object)') + "</div>";
 177                         }
 178                 } catch (e) {
 179                         exception_error("article_callback", e);
 180                 }
 181
 182                 var date = new Date();
 183                 last_article_view = date.getTime() / 1000;
 184
 185                 if (typeof correctPNG != 'undefined') {
 186                         correctPNG();
 187                 }
 188
 189                 if (_reload_feedlist_after_view) {
 190                         setTimeout('updateFeedList(false, false)', 50);
 191                         _reload_feedlist_after_view = false;
 192                 } else {
 193                         var counters = xmlhttp.responseXML.getElementsByTagName("counters")[0];
 194
 195                         if (counters) {
 196                                 debug("parsing piggybacked counters: " + counters);
 197                                 parse_counters(counters, false);
 198                         } else {
 199                                 debug("counters container not found in reply");
 200                         }
 201                 }
 202
 203                 notify("");
 204         }
 205 }
 206
 207 function view(id, feed_id, skip_history) {
 208
 209         try {
 210                 debug("loading article: " + id + "/" + feed_id);
 211
 212                 active_real_feed_id = feed_id;
 213
 214                 var cached_article = cache_find(id);
 215
 216                 debug("cache check result: " + (cached_article != false));
 217
 218                 enableHotkeys();
 219
 220                 //setActiveFeedId(feed_id);
 221
 222                 var query = "backend.php?op=view&id=" + param_escape(id) +
 223                         "&feed=" + param_escape(feed_id);
 224
 225                 var date = new Date();
 226
 227                 if (!xmlhttp_ready(xmlhttp) && last_article_view < date.getTime() / 1000 - 15) {
 228                         debug("<b>xmlhttp seems to be stuck at view, aborting</b>");
 229                         xmlhttp.abort();
 230                         if (is_safari()) {
 231                                 debug("trying alternative reset method for Safari");
 232                                 xmlhttp = Ajax.getTransport();
 233                         }
 234                 }
 235
 236                 if (xmlhttp_ready(xmlhttp)) {
 237
 238                         active_post_id = id;
 239
 240                         cleanSelected("headlinesList");
 241
 242                         var crow = document.getElementById("RROW-" + active_post_id);
 243
 244                         var article_is_unread = crow.className.match("Unread");
 245                         debug("article is unread: " + article_is_unread);
 246
 247                         crow.className = crow.className.replace("Unread", "");
 248
 249                         var upd_img_pic = document.getElementById("FUPDPIC-" + active_post_id);
 250
 251                         if (upd_img_pic) {
 252                                 upd_img_pic.src = "images/blank_icon.gif";
 253                         }
 254
 255                         selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
 256                         markHeadline(active_post_id);
 257
 258                         var neighbor_ids = getRelativePostIds(active_post_id);
 259
 260                         /* only request uncached articles */
 261
 262                         var cids_to_request = Array();
 263
 264                         for (var i = 0; i < neighbor_ids.length; i++) {
 265                                 if (!cache_check(neighbor_ids[i])) {
 266                                         cids_to_request.push(neighbor_ids[i]);
 267                                 }
 268                         }
 269
 270                         debug("additional ids: " + cids_to_request.toString());
 271
 272                         /* additional info for piggyback counters */
 273
 274                         if (tagsAreDisplayed()) {
 275                                 query = query + "&omode=lt";
 276                         } else {
 277                                 query = query + "&omode=flc";
 278                         }
 279
 280                         var date = new Date();
 281                         var timestamp = Math.round(date.getTime() / 1000);
 282                         query = query + "&ts=" + timestamp;
 283
 284                         query = query + "&cids=" + cids_to_request.toString();
 285
 286                         if (!cached_article) {
 287
 288                                 notify_progress("Loading, please wait...");
 289
 290                                 debug(query);
 291
 292                                 xmlhttp.open("GET", query, true);
 293                                 xmlhttp.onreadystatechange=article_callback;
 294                                 xmlhttp.send(null);
 295                         } else if (cached_article && article_is_unread) {
 296
 297                                 query = query + "&mode=prefetch";
 298
 299                                 debug(query);
 300
 301                                 xmlhttp.open("GET", query, true);
 302                                 xmlhttp.onreadystatechange=article_callback;
 303                                 xmlhttp.send(null);
 304
 305                                 render_article(cached_article);
 306
 307                         } else if (cached_article) {
 308
 309                                 query = query + "&mode=prefetch_old";
 310
 311                                 debug(query);
 312
 313                                 xmlhttp.open("GET", query, true);
 314                                 xmlhttp.onreadystatechange=article_callback;
 315                                 xmlhttp.send(null);
 316
 317                                 render_article(cached_article);
 318
 319                         }
 320
 321                         cache_expire();
 322
 323                 } else {
 324                         debug("xmlhttp busy (@view)");
 325                         printLockingError();
 326                 }
 327
 328         } catch (e) {
 329                 exception_error("view", e);
 330         }
 331 }
 332
 333 function tMark(id) {
 334         return toggleMark(id);
 335 }
 336
 337 function tPub(id) {
 338         return togglePub(id);
 339 }
 340
 341 function tMark_afh_off(effect) {
 342         try {
 343                 var elem = effect.effects[0].element;
 344
 345                 debug("tMark_afh_off : " + elem.id);
 346
 347                 if (elem) {
 348                         elem.src = "images/mark_unset.png";
 349                         elem.alt = "Set mark";
 350                         Element.show(elem);
 351                 }
 352
 353         } catch (e) {
 354                 exception_error("tMark_afh_off", e);
 355         }
 356 }
 357
 358 function tPub_afh_off(effect) {
 359         try {
 360                 var elem = effect.effects[0].element;
 361
 362                 debug("tPub_afh_off : " + elem.id);
 363
 364                 if (elem) {
 365                         elem.src = "images/pub_unset.png";
 366                         elem.alt = "Publish";
 367                         Element.show(elem);
 368                 }
 369
 370         } catch (e) {
 371                 exception_error("tPub_afh_off", e);
 372         }
 373 }
 374
 375 function toggleMark(id) {
 376
 377         if (!xmlhttp_ready(xmlhttp_rpc)) {
 378                 printLockingError();
 379                 return;
 380         }
 381
 382         var query = "backend.php?op=rpc&id=" + id + "&subop=mark";
 383
 384         query = query + "&afid=" + getActiveFeedId();
 385
 386         if (tagsAreDisplayed()) {
 387                 query = query + "&omode=tl";
 388         } else {
 389                 query = query + "&omode=flc";
 390         }
 391
 392         var mark_img = document.getElementById("FMPIC-" + id);
 393         var vfeedu = document.getElementById("FEEDU--1");
 394         var crow = document.getElementById("RROW-" + id);
 395
 396         if (mark_img.alt != "Reset mark") {
 397                 mark_img.src = "images/mark_set.png";
 398                 mark_img.alt = "Reset mark";
 399                 query = query + "&mark=1";
 400
 401                 if (vfeedu && crow.className.match("Unread")) {
 402                         vfeedu.innerHTML = (+vfeedu.innerHTML) + 1;
 403                 }
 404
 405         } else {
 406                 //mark_img.src = "images/mark_unset.png";
 407                 mark_img.alt = "Please wait...";
 408                 query = query + "&mark=0";
 409
 410                 if (vfeedu && crow.className.match("Unread")) {
 411                         vfeedu.innerHTML = (+vfeedu.innerHTML) - 1;
 412                 }
 413
 414                 Effect.Puff(mark_img, {duration : 0.25, afterFinish: tMark_afh_off});
 415
 416         }
 417
 418         var vfeedctr = document.getElementById("FEEDCTR--1");
 419         var vfeedr = document.getElementById("FEEDR--1");
 420
 421         if (vfeedu && vfeedctr) {
 422                 if ((+vfeedu.innerHTML) > 0) {
 423                         if (crow.className.match("Unread") && !vfeedr.className.match("Unread")) {
 424                                 vfeedr.className = vfeedr.className + "Unread";
 425                                 vfeedctr.className = "odd";
 426                         }
 427                 } else {
 428                         vfeedctr.className = "invisible";
 429                         vfeedr.className = vfeedr.className.replace("Unread", "");
 430                 }
 431         }
 432
 433         debug("toggle starred for aid " + id);
 434
 435         new Ajax.Request(query);
 436
 437 }
 438
 439 function togglePub(id) {
 440
 441         try {
 442
 443                 if (!xmlhttp_ready(xmlhttp_rpc)) {
 444                         printLockingError();
 445                         return;
 446                 }
 447
 448                 var query = "backend.php?op=rpc&id=" + id + "&subop=publ";
 449
 450                 query = query + "&afid=" + getActiveFeedId();
 451
 452                 if (tagsAreDisplayed()) {
 453                         query = query + "&omode=tl";
 454                 } else {
 455                         query = query + "&omode=flc";
 456                 }
 457
 458                 var mark_img = document.getElementById("FPPIC-" + id);
 459                 var vfeedu = document.getElementById("FEEDU--2");
 460                 var crow = document.getElementById("RROW-" + id);
 461
 462                 if (mark_img.alt != "Unpublish") {
 463                         mark_img.src = "images/pub_set.png";
 464                         mark_img.alt = "Unpublish";
 465                         query = query + "&pub=1";
 466
 467                         if (vfeedu && crow.className.match("Unread")) {
 468                                 vfeedu.innerHTML = (+vfeedu.innerHTML) + 1;
 469                         }
 470
 471                 } else {
 472                         //mark_img.src = "images/pub_unset.png";
 473                         mark_img.alt = "Please wait...";
 474                         query = query + "&pub=0";
 475
 476                         if (vfeedu && crow.className.match("Unread")) {
 477                                 vfeedu.innerHTML = (+vfeedu.innerHTML) - 1;
 478                         }
 479
 480                         Effect.Puff(mark_img, {duration : 0.25, afterFinish: tPub_afh_off});
 481
 482                 }
 483
 484                 var vfeedctr = document.getElementById("FEEDCTR--2");
 485                 var vfeedr = document.getElementById("FEEDR--2");
 486
 487                 if (vfeedu && vfeedctr) {
 488                         if ((+vfeedu.innerHTML) > 0) {
 489                                 if (crow.className.match("Unread") && !vfeedr.className.match("Unread")) {
 490                                         vfeedr.className = vfeedr.className + "Unread";
 491                                         vfeedctr.className = "odd";
 492                                 }
 493                         } else {
 494                                 vfeedctr.className = "invisible";
 495                                 vfeedr.className = vfeedr.className.replace("Unread", "");
 496                         }
 497                 }
 498
 499                 debug("toggle published for aid " + id);
 500
 501                 new Ajax.Request(query);
 502         } catch (e) {
 503
 504                 exception_error("togglePub", e);
 505         }
 506 }
 507
 508 function correctHeadlinesOffset(id) {
 509
 510         try {
 511
 512                 var hlist = document.getElementById("headlinesList");
 513                 var container = document.getElementById("headlinesInnerContainer");
 514                 var row = document.getElementById("RROW-" + id);
 515
 516                 var viewport = container.offsetHeight;
 517
 518                 var rel_offset_top = row.offsetTop - container.scrollTop;
 519                 var rel_offset_bottom = row.offsetTop + row.offsetHeight - container.scrollTop;
 520
 521                 debug("Rtop: " + rel_offset_top + " Rbtm: " + rel_offset_bottom);
 522                 debug("Vport: " + viewport);
 523
 524                 if (rel_offset_top <= 0 || rel_offset_top > viewport) {
 525                         container.scrollTop = row.offsetTop;
 526                 } else if (rel_offset_bottom > viewport) {
 527
 528                         /* doesn't properly work with Opera in some cases because
 529                                 Opera fucks up element scrolling */
 530
 531                         container.scrollTop = row.offsetTop + row.offsetHeight - viewport;
 532                 }
 533
 534         } catch (e) {
 535                 exception_error("correctHeadlinesOffset", e);
 536         }
 537
 538 }
 539
 540 function moveToPost(mode) {
 541
 542         // check for combined mode
 543         if (!document.getElementById("headlinesList"))
 544                 return;
 545
 546         var rows = getVisibleHeadlineIds();
 547
 548         var prev_id = false;
 549         var next_id = false;
 550
 551         if (!document.getElementById('RROW-' + active_post_id)) {
 552                 active_post_id = false;
 553         }
 554
 555         if (active_post_id == false) {
 556                 next_id = getFirstVisibleHeadlineId();
 557                 prev_id = getLastVisibleHeadlineId();
 558         } else {
 559                 for (var i = 0; i < rows.length; i++) {
 560                         if (rows[i] == active_post_id) {
 561                                 prev_id = rows[i-1];
 562                                 next_id = rows[i+1];
 563                         }
 564                 }
 565         }
 566
 567         if (mode == "next") {
 568                 if (next_id) {
 569                         correctHeadlinesOffset(next_id);
 570                         view(next_id, getActiveFeedId());
 571                 }
 572         }
 573
 574         if (mode == "prev") {
 575                 if (prev_id) {
 576                         correctHeadlinesOffset(prev_id);
 577                         view(prev_id, getActiveFeedId());
 578                 }
 579         }
 580 }
 581
 582 function toggleUnread(id, cmode) {
 583         try {
 584                 if (!xmlhttp_ready(xmlhttp_rpc)) {
 585                         printLockingError();
 586                         return;
 587                 }
 588
 589                 var row = document.getElementById("RROW-" + id);
 590                 if (row) {
 591                         var nc = row.className;
 592                         nc = nc.replace("Unread", "");
 593                         nc = nc.replace("Selected", "");
 594
 595                         if (row.className.match("Unread")) {
 596                                 row.className = nc;
 597                         } else {
 598                                 row.className = nc + "Unread";
 599                         }
 600
 601                         if (!cmode) cmode = 2;
 602
 603                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
 604                                 param_escape(id) + "&cmode=" + param_escape(cmode);
 605
 606                         notify_progress("Loading, please wait...");
 607
 608                         xmlhttp_rpc.open("GET", query, true);
 609                         xmlhttp_rpc.onreadystatechange=all_counters_callback;
 610                         xmlhttp_rpc.send(null);
 611
 612                 }
 613
 614
 615         } catch (e) {
 616                 exception_error("toggleUnread", e);
 617         }
 618 }
 619
 620 function selectionToggleUnread(cdm_mode, set_state, callback_func, no_error) {
 621         try {
 622                 if (!xmlhttp_ready(xmlhttp_rpc)) {
 623                         printLockingError();
 624                         return;
 625                 }
 626
 627                 var rows;
 628
 629                 if (cdm_mode) {
 630                         rows = cdmGetSelectedArticles();
 631                 } else {
 632                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 633                 }
 634
 635                 if (rows.length == 0 && !no_error) {
 636                         alert(__("No articles are selected."));
 637                         return;
 638                 }
 639
 640                 for (i = 0; i < rows.length; i++) {
 641                         var row = document.getElementById("RROW-" + rows[i]);
 642                         if (row) {
 643                                 var nc = row.className;
 644                                 nc = nc.replace("Unread", "");
 645                                 nc = nc.replace("Selected", "");
 646
 647                                 if (row.className.match("Unread")) {
 648                                         row.className = nc + "Selected";
 649                                 } else {
 650                                         row.className = nc + "UnreadSelected";
 651                                 }
 652                         }
 653                 }
 654
 655                 if (rows.length > 0) {
 656
 657                         var cmode = "";
 658
 659                         if (set_state == undefined) {
 660                                 cmode = "2";
 661                         } else if (set_state == true) {
 662                                 cmode = "1";
 663                         } else if (set_state == false) {
 664                                 cmode = "0";
 665                         }
 666
 667                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
 668                                 param_escape(rows.toString()) + "&cmode=" + cmode;
 669
 670                         _catchup_callback_func = callback_func;
 671
 672                         notify_progress("Loading, please wait...");
 673
 674                         xmlhttp_rpc.open("GET", query, true);
 675                         xmlhttp_rpc.onreadystatechange=catchup_callback;
 676                         xmlhttp_rpc.send(null);
 677
 678                 }
 679
 680         } catch (e) {
 681                 exception_error("selectionToggleUnread", e);
 682         }
 683 }
 684
 685 function selectionToggleMarked(cdm_mode) {
 686         try {
 687                 if (!xmlhttp_ready(xmlhttp_rpc)) {
 688                         printLockingError();
 689                         return;
 690                 }
 691
 692                 var rows;
 693
 694                 if (cdm_mode) {
 695                         rows = cdmGetSelectedArticles();
 696                 } else {
 697                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 698                 }
 699
 700                 if (rows.length == 0) {
 701                         alert(__("No articles are selected."));
 702                         return;
 703                 }
 704
 705                 for (i = 0; i < rows.length; i++) {
 706                         var row = document.getElementById("RROW-" + rows[i]);
 707                         var mark_img = document.getElementById("FMPIC-" + rows[i]);
 708
 709                         if (row && mark_img) {
 710
 711                                 if (mark_img.alt == "Set mark") {
 712                                         mark_img.src = "images/mark_set.png";
 713                                         mark_img.alt = "Reset mark";
 714                                         //mark_img.setAttribute('onclick',
 715                                         //      'javascript:toggleMark('+rows[i]+', false)');
 716
 717                                 } else {
 718                                         mark_img.src = "images/mark_unset.png";
 719                                         mark_img.alt = "Set mark";
 720
 721                                         //mark_img.alt = "Please wait...";
 722
 723                                         //mark_img.setAttribute('onclick',
 724                                         //      'javascript:toggleMark('+rows[i]+', true)');
 725
 726                                         //Effect.Puff(mark_img, {duration : 0.25, afterFinish: tMark_afh_off});
 727
 728                                 }
 729                         }
 730                 }
 731
 732                 if (rows.length > 0) {
 733
 734                         var query = "backend.php?op=rpc&subop=markSelected&ids=" +
 735                                 param_escape(rows.toString()) + "&cmode=2";
 736
 737                         query = query + "&afid=" + getActiveFeedId();
 738
 739                         if (tagsAreDisplayed()) {
 740                                 query = query + "&omode=tl";
 741                         } else {
 742                                 query = query + "&omode=flc";
 743                         }
 744
 745                         xmlhttp_rpc.open("GET", query, true);
 746                         xmlhttp_rpc.onreadystatechange=all_counters_callback;
 747                         xmlhttp_rpc.send(null);
 748
 749                 }
 750
 751         } catch (e) {
 752                 exception_error("selectionToggleMarked", e);
 753         }
 754 }
 755
 756 function selectionTogglePublished(cdm_mode) {
 757         try {
 758                 if (!xmlhttp_ready(xmlhttp_rpc)) {
 759                         printLockingError();
 760                         return;
 761                 }
 762
 763                 var rows;
 764
 765                 if (cdm_mode) {
 766                         rows = cdmGetSelectedArticles();
 767                 } else {
 768                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 769                 }
 770
 771                 if (rows.length == 0) {
 772                         alert(__("No articles are selected."));
 773                         return;
 774                 }
 775
 776                 for (i = 0; i < rows.length; i++) {
 777                         var row = document.getElementById("RROW-" + rows[i]);
 778                         var mark_img = document.getElementById("FPPIC-" + rows[i]);
 779
 780                         if (row && mark_img) {
 781
 782                                 if (mark_img.alt == "Publish") {
 783                                         mark_img.src = "images/pub_set.png";
 784                                         mark_img.alt = "Unpublish";
 785 //                                      mark_img.setAttribute('onclick',
 786 //                                              'javascript:togglePub('+rows[i]+', false)');
 787
 788                                 } else {
 789                                         mark_img.src = "images/pub_unset.png";
 790                                         mark_img.alt = "Publish";
 791 //                                      mark_img.setAttribute('onclick',
 792 //                                              'javascript:togglePub('+rows[i]+', true)');
 793
 794 //                                      Effect.Puff(mark_img, {duration : 0.25, afterFinish: tPub_afh_off});
 795
 796                                 }
 797                         }
 798                 }
 799
 800                 if (rows.length > 0) {
 801
 802                         var query = "backend.php?op=rpc&subop=publishSelected&ids=" +
 803                                 param_escape(rows.toString()) + "&cmode=2";
 804
 805                         query = query + "&afid=" + getActiveFeedId();
 806
 807                         if (tagsAreDisplayed()) {
 808                                 query = query + "&omode=tl";
 809                         } else {
 810                                 query = query + "&omode=flc";
 811                         }
 812
 813                         xmlhttp_rpc.open("GET", query, true);
 814                         xmlhttp_rpc.onreadystatechange=all_counters_callback;
 815                         xmlhttp_rpc.send(null);
 816
 817                 }
 818
 819         } catch (e) {
 820                 exception_error("selectionToggleMarked", e);
 821         }
 822 }
 823
 824 function cdmGetSelectedArticles() {
 825         var sel_articles = new Array();
 826         var container = document.getElementById("headlinesInnerContainer");
 827
 828         for (i = 0; i < container.childNodes.length; i++) {
 829                 var child = container.childNodes[i];
 830
 831                 if (child.id.match("RROW-") && child.className.match("Selected")) {
 832                         var c_id = child.id.replace("RROW-", "");
 833                         sel_articles.push(c_id);
 834                 }
 835         }
 836
 837         return sel_articles;
 838 }
 839
 840 // mode = all,none,unread
 841 function cdmSelectArticles(mode) {
 842         var container = document.getElementById("headlinesInnerContainer");
 843
 844         for (i = 0; i < container.childNodes.length; i++) {
 845                 var child = container.childNodes[i];
 846
 847                 if (child.id.match("RROW-")) {
 848                         var aid = child.id.replace("RROW-", "");
 849
 850                         var cb = document.getElementById("RCHK-" + aid);
 851
 852                         if (mode == "all") {
 853                                 if (!child.className.match("Selected")) {
 854                                         child.className = child.className + "Selected";
 855                                         cb.checked = true;
 856                                 }
 857                         } else if (mode == "unread") {
 858                                 if (child.className.match("Unread") && !child.className.match("Selected")) {
 859                                         child.className = child.className + "Selected";
 860                                         cb.checked = true;
 861                                 }
 862                         } else {
 863                                 child.className = child.className.replace("Selected", "");
 864                                 cb.checked = false;
 865                         }
 866                 }
 867         }
 868 }
 869
 870 function catchupPage() {
 871
 872         var fn = getFeedName(getActiveFeedId(), active_feed_is_cat);
 873
 874         var str = "Mark all visible articles in " + fn + " as read?";
 875
 876         if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
 877                 return;
 878         }
 879
 880         if (document.getElementById("headlinesList")) {
 881                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, 'Unread', true);
 882                 selectionToggleUnread(false, false, 'viewCurrentFeed()', true);
 883                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
 884         } else {
 885                 cdmSelectArticles('all');
 886                 selectionToggleUnread(true, false, 'viewCurrentFeed()', true)
 887                 cdmSelectArticles('none');
 888         }
 889 }
 890
 891 function labelFromSearch(search, search_mode, match_on, feed_id, is_cat) {
 892
 893         if (!xmlhttp_ready(xmlhttp_rpc)) {
 894                 printLockingError();
 895         }
 896
 897         var title = prompt("Please enter label title:", "");
 898
 899         if (title) {
 900
 901                 var query = "backend.php?op=labelFromSearch&search=" + param_escape(search) +
 902                         "&smode=" + param_escape(search_mode) + "&match=" + param_escape(match_on) +
 903                         "&feed=" + param_escape(feed_id) + "&is_cat=" + param_escape(is_cat) +
 904                         "&title=" + param_escape(title);
 905
 906                 debug("LFS: " + query);
 907
 908                 xmlhttp_rpc.open("GET", query, true);
 909                 xmlhttp_rpc.onreadystatechange=dlg_frefresh_callback;
 910                 xmlhttp_rpc.send(null);
 911         }
 912
 913 }
 914
 915 function editArticleTags(id, feed_id, cdm_enabled) {
 916         _tag_active_post_id = id;
 917         _tag_active_feed_id = feed_id;
 918         _tag_active_cdm = cdm_enabled;
 919
 920         cache_invalidate(id);
 921
 922         try {
 923                 _tag_cdm_scroll = document.getElementById("headlinesInnerContainer").scrollTop;
 924         } catch (e) { }
 925         displayDlg('editArticleTags', id);
 926 }
 927
 928
 929 function tag_saved_callback() {
 930         if (xmlhttp_rpc.readyState == 4) {
 931                 try {
 932                         debug("in tag_saved_callback");
 933
 934                         closeInfoBox();
 935                         notify("");
 936
 937                         if (tagsAreDisplayed()) {
 938                                 _reload_feedlist_after_view = true;
 939                         }
 940
 941                         if (!_tag_active_cdm) {
 942                                 if (active_post_id == _tag_active_post_id) {
 943                                         debug("reloading current article");
 944                                         view(_tag_active_post_id, _tag_active_feed_id);
 945                                 }
 946                         } else {
 947                                 debug("reloading current feed");
 948                                 viewCurrentFeed();
 949                         }
 950
 951                 } catch (e) {
 952                         exception_error("catchup_callback", e);
 953                 }
 954         }
 955 }
 956
 957 function editTagsSave() {
 958
 959         if (!xmlhttp_ready(xmlhttp_rpc)) {
 960                 printLockingError();
 961         }
 962
 963         notify_progress("Saving article tags...");
 964
 965         var form = document.forms["tag_edit_form"];
 966
 967         var query = Form.serialize("tag_edit_form");
 968
 969         query = "backend.php?op=rpc&subop=setArticleTags&" + query;
 970
 971         debug(query);
 972
 973         xmlhttp_rpc.open("GET", query, true);
 974         xmlhttp_rpc.onreadystatechange=tag_saved_callback;
 975         xmlhttp_rpc.send(null);
 976
 977 }
 978
 979 function editTagsInsert() {
 980         try {
 981
 982                 var form = document.forms["tag_edit_form"];
 983
 984                 var found_tags = form.found_tags;
 985                 var tags_str = form.tags_str;
 986
 987                 var tag = found_tags[found_tags.selectedIndex].value;
 988
 989                 if (tags_str.value.length > 0 &&
 990                                 tags_str.value.lastIndexOf(", ") != tags_str.value.length - 2) {
 991
 992                         tags_str.value = tags_str.value + ", ";
 993                 }
 994
 995                 tags_str.value = tags_str.value + tag + ", ";
 996
 997                 found_tags.selectedIndex = 0;
 998
 999         } catch (e) {
1000                 exception_error(e, "editTagsInsert");
1001         }
1002 }
1003
1004 function cdmWatchdog() {
1005
1006         try {
1007
1008                 var ctr = document.getElementById("headlinesInnerContainer");
1009
1010                 if (!ctr) return;
1011
1012                 var ids = new Array();
1013
1014                 var e = ctr.firstChild;
1015
1016                 while (e) {
1017                         if (e.className && e.className == "cdmArticleUnread" && e.id &&
1018                                         e.id.match("RROW-")) {
1019
1020                                 // article fits in viewport OR article is longer than viewport and
1021                                 // its bottom is visible
1022
1023                                 if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <=
1024                                                 ctr.scrollTop + ctr.offsetHeight) {
1025
1026 //                                      debug(e.id + " is visible " + e.offsetTop + "." +
1027 //                                              (e.offsetTop + e.offsetHeight) + " vs " + ctr.scrollTop + "." +
1028 //                                              (ctr.scrollTop + ctr.offsetHeight));
1029
1030                                         ids.push(e.id.replace("RROW-", ""));
1031
1032                                 } else if (e.offsetHeight > ctr.offsetHeight &&
1033                                                 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1034                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
1035
1036                                         ids.push(e.id.replace("RROW-", ""));
1037
1038                                 }
1039
1040                                 // method 2: article bottom is visible and is in upper 1/2 of the viewport
1041
1042 /*                              if (e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1043                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight/2) {
1044
1045                                         ids.push(e.id.replace("RROW-", ""));
1046
1047                                 } */
1048
1049                         }
1050
1051                         e = e.nextSibling;
1052                 }
1053
1054                 debug("cdmWatchdog, ids= " + ids.toString());
1055
1056                 if (ids.length > 0 && xmlhttp_ready(xmlhttp_rpc)) {
1057
1058                         for (var i = 0; i < ids.length; i++) {
1059                                 var e = document.getElementById("RROW-" + ids[i]);
1060                                 if (e) {
1061                                         e.className = e.className.replace("Unread", "");
1062                                 }
1063                         }
1064
1065                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
1066                                 param_escape(ids.toString()) + "&cmode=0";
1067
1068                         xmlhttp_rpc.open("GET", query, true);
1069                         xmlhttp_rpc.onreadystatechange=all_counters_callback;
1070                         xmlhttp_rpc.send(null);
1071
1072                 }
1073
1074                 _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 4000);
1075
1076         } catch (e) {
1077                 exception_error(e, "cdmWatchdog");
1078         }
1079
1080 }
1081
1082
1083 function cache_inject(id, article) {
1084         if (!cache_check(id)) {
1085                 debug("cache_article: miss: " + id);
1086
1087                 var cache_obj = new Array();
1088
1089                 cache_obj["id"] = id;
1090                 cache_obj["data"] = article;
1091
1092                 article_cache.push(cache_obj);
1093
1094         } else {
1095                 debug("cache_article: hit: " + id);
1096         }
1097 }
1098
1099 function cache_find(id) {
1100         for (var i = 0; i < article_cache.length; i++) {
1101                 if (article_cache[i]["id"] == id) {
1102                         return article_cache[i]["data"];
1103                 }
1104         }
1105         return false;
1106 }
1107
1108 function cache_check(id) {
1109         for (var i = 0; i < article_cache.length; i++) {
1110                 if (article_cache[i]["id"] == id) {
1111                         return true;
1112                 }
1113         }
1114         return false;
1115 }
1116
1117 function cache_expire() {
1118         while (article_cache.length > 20) {
1119                 article_cache.shift();
1120         }
1121 }
1122
1123 function cache_invalidate(id) {
1124         var i = 0
1125
1126         try {
1127
1128                 while (i < article_cache.length) {
1129                         if (article_cache[i]["id"] == id) {
1130                                 debug("cache_invalidate: removed id " + id);
1131                                 article_cache.splice(i, 1);
1132                                 return true;
1133                         }
1134                         i++;
1135                 }
1136                 debug("cache_invalidate: id not found: " + id);
1137                 return false;
1138         } catch (e) {
1139                 exception_error("cache_invalidate", e);
1140         }
1141 }
1142
1143 function getActiveArticleId() {
1144         return active_post_id;
1145 }
1146
1147 function cdmMouseIn(elem) {
1148         try {
1149                 if (elem.id && elem.id.match("RROW-")) {
1150                         var id = elem.id.replace("RROW-", "");
1151                         active_post_id = id;
1152                 }
1153         } catch (e) {
1154                 exception_error("cdmMouseIn", e);
1155         }
1156
1157 }
1158
1159 function cdmMouseOut(elem) {
1160         active_post_id = false;
1161 }
1162
1163 function headlines_scroll_handler() {
1164         try {
1165
1166                 var e = document.getElementById("headlinesInnerContainer");
1167
1168                 if (e.scrollTop + e.offsetHeight > e.scrollHeight - 300) {
1169                         debug("more cowbell!");
1170
1171                         viewNextFeedPage();
1172                 }
1173
1174         } catch (e) {
1175                 exception_error("headlines_scroll_handler", e);
1176         }
1177 }