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                 if (document.getElementById("headlinesList")) {
 415                         Effect.Puff(mark_img, {duration : 0.25, afterFinish: tMark_afh_off});
 416                 } else {
 417                         mark_img.src = "images/mark_unset.png";
 418                         mark_img.alt = "Set mark";
 419                 }
 420         }
 421
 422         var vfeedctr = document.getElementById("FEEDCTR--1");
 423         var vfeedr = document.getElementById("FEEDR--1");
 424
 425         if (vfeedu && vfeedctr) {
 426                 if ((+vfeedu.innerHTML) > 0) {
 427                         if (crow.className.match("Unread") && !vfeedr.className.match("Unread")) {
 428                                 vfeedr.className = vfeedr.className + "Unread";
 429                                 vfeedctr.className = "odd";
 430                         }
 431                 } else {
 432                         vfeedctr.className = "invisible";
 433                         vfeedr.className = vfeedr.className.replace("Unread", "");
 434                 }
 435         }
 436
 437         debug("toggle starred for aid " + id);
 438
 439         new Ajax.Request(query);
 440
 441 }
 442
 443 function togglePub(id) {
 444
 445         try {
 446
 447                 if (!xmlhttp_ready(xmlhttp_rpc)) {
 448                         printLockingError();
 449                         return;
 450                 }
 451
 452                 var query = "backend.php?op=rpc&id=" + id + "&subop=publ";
 453
 454                 query = query + "&afid=" + getActiveFeedId();
 455
 456                 if (tagsAreDisplayed()) {
 457                         query = query + "&omode=tl";
 458                 } else {
 459                         query = query + "&omode=flc";
 460                 }
 461
 462                 var mark_img = document.getElementById("FPPIC-" + id);
 463                 var vfeedu = document.getElementById("FEEDU--2");
 464                 var crow = document.getElementById("RROW-" + id);
 465
 466                 if (mark_img.alt != "Unpublish") {
 467                         mark_img.src = "images/pub_set.png";
 468                         mark_img.alt = "Unpublish";
 469                         query = query + "&pub=1";
 470
 471                         if (vfeedu && crow.className.match("Unread")) {
 472                                 vfeedu.innerHTML = (+vfeedu.innerHTML) + 1;
 473                         }
 474
 475                 } else {
 476                         //mark_img.src = "images/pub_unset.png";
 477                         mark_img.alt = "Please wait...";
 478                         query = query + "&pub=0";
 479
 480                         if (vfeedu && crow.className.match("Unread")) {
 481                                 vfeedu.innerHTML = (+vfeedu.innerHTML) - 1;
 482                         }
 483
 484                         if (document.getElementById("headlinesList")) {
 485                                 Effect.Puff(mark_img, {duration : 0.25, afterFinish: tPub_afh_off});
 486                         } else {
 487                                 mark_img.src = "images/pub_unset.png";
 488                                 mark_img.alt = "Publish";
 489                         }
 490                 }
 491
 492                 var vfeedctr = document.getElementById("FEEDCTR--2");
 493                 var vfeedr = document.getElementById("FEEDR--2");
 494
 495                 if (vfeedu && vfeedctr) {
 496                         if ((+vfeedu.innerHTML) > 0) {
 497                                 if (crow.className.match("Unread") && !vfeedr.className.match("Unread")) {
 498                                         vfeedr.className = vfeedr.className + "Unread";
 499                                         vfeedctr.className = "odd";
 500                                 }
 501                         } else {
 502                                 vfeedctr.className = "invisible";
 503                                 vfeedr.className = vfeedr.className.replace("Unread", "");
 504                         }
 505                 }
 506
 507                 debug("toggle published for aid " + id);
 508
 509                 new Ajax.Request(query);
 510         } catch (e) {
 511
 512                 exception_error("togglePub", e);
 513         }
 514 }
 515
 516 function correctHeadlinesOffset(id) {
 517
 518         try {
 519
 520                 var hlist = document.getElementById("headlinesList");
 521                 var container = document.getElementById("headlinesInnerContainer");
 522                 var row = document.getElementById("RROW-" + id);
 523
 524                 var viewport = container.offsetHeight;
 525
 526                 var rel_offset_top = row.offsetTop - container.scrollTop;
 527                 var rel_offset_bottom = row.offsetTop + row.offsetHeight - container.scrollTop;
 528
 529                 debug("Rtop: " + rel_offset_top + " Rbtm: " + rel_offset_bottom);
 530                 debug("Vport: " + viewport);
 531
 532                 if (rel_offset_top <= 0 || rel_offset_top > viewport) {
 533                         container.scrollTop = row.offsetTop;
 534                 } else if (rel_offset_bottom > viewport) {
 535
 536                         /* doesn't properly work with Opera in some cases because
 537                                 Opera fucks up element scrolling */
 538
 539                         container.scrollTop = row.offsetTop + row.offsetHeight - viewport;
 540                 }
 541
 542         } catch (e) {
 543                 exception_error("correctHeadlinesOffset", e);
 544         }
 545
 546 }
 547
 548 function moveToPost(mode) {
 549
 550         // check for combined mode
 551         if (!document.getElementById("headlinesList"))
 552                 return;
 553
 554         var rows = getVisibleHeadlineIds();
 555
 556         var prev_id = false;
 557         var next_id = false;
 558
 559         if (!document.getElementById('RROW-' + active_post_id)) {
 560                 active_post_id = false;
 561         }
 562
 563         if (active_post_id == false) {
 564                 next_id = getFirstVisibleHeadlineId();
 565                 prev_id = getLastVisibleHeadlineId();
 566         } else {
 567                 for (var i = 0; i < rows.length; i++) {
 568                         if (rows[i] == active_post_id) {
 569                                 prev_id = rows[i-1];
 570                                 next_id = rows[i+1];
 571                         }
 572                 }
 573         }
 574
 575         if (mode == "next") {
 576                 if (next_id) {
 577                         correctHeadlinesOffset(next_id);
 578                         view(next_id, getActiveFeedId());
 579                 }
 580         }
 581
 582         if (mode == "prev") {
 583                 if (prev_id) {
 584                         correctHeadlinesOffset(prev_id);
 585                         view(prev_id, getActiveFeedId());
 586                 }
 587         }
 588 }
 589
 590 function toggleUnread(id, cmode) {
 591         try {
 592                 if (!xmlhttp_ready(xmlhttp_rpc)) {
 593                         printLockingError();
 594                         return;
 595                 }
 596
 597                 var row = document.getElementById("RROW-" + id);
 598                 if (row) {
 599                         var nc = row.className;
 600                         nc = nc.replace("Unread", "");
 601                         nc = nc.replace("Selected", "");
 602
 603                         if (row.className.match("Unread")) {
 604                                 row.className = nc;
 605                         } else {
 606                                 row.className = nc + "Unread";
 607                         }
 608
 609                         if (!cmode) cmode = 2;
 610
 611                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
 612                                 param_escape(id) + "&cmode=" + param_escape(cmode);
 613
 614                         notify_progress("Loading, please wait...");
 615
 616                         xmlhttp_rpc.open("GET", query, true);
 617                         xmlhttp_rpc.onreadystatechange=all_counters_callback;
 618                         xmlhttp_rpc.send(null);
 619
 620                 }
 621
 622
 623         } catch (e) {
 624                 exception_error("toggleUnread", e);
 625         }
 626 }
 627
 628 function selectionToggleUnread(cdm_mode, set_state, callback_func, no_error) {
 629         try {
 630                 if (!xmlhttp_ready(xmlhttp_rpc)) {
 631                         printLockingError();
 632                         return;
 633                 }
 634
 635                 var rows;
 636
 637                 if (cdm_mode) {
 638                         rows = cdmGetSelectedArticles();
 639                 } else {
 640                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 641                 }
 642
 643                 if (rows.length == 0 && !no_error) {
 644                         alert(__("No articles are selected."));
 645                         return;
 646                 }
 647
 648                 for (i = 0; i < rows.length; i++) {
 649                         var row = document.getElementById("RROW-" + rows[i]);
 650                         if (row) {
 651                                 var nc = row.className;
 652                                 nc = nc.replace("Unread", "");
 653                                 nc = nc.replace("Selected", "");
 654
 655                                 if (set_state == undefined) {
 656                                         if (row.className.match("Unread")) {
 657                                                 row.className = nc + "Selected";
 658                                         } else {
 659                                                 row.className = nc + "UnreadSelected";
 660                                         }
 661                                 }
 662
 663                                 if (set_state == false) {
 664                                         row.className = nc + "Selected";
 665                                 }
 666
 667                                 if (set_state == true) {
 668                                         row.className = nc + "UnreadSelected";
 669                                 }
 670                         }
 671                 }
 672
 673                 if (rows.length > 0) {
 674
 675                         var cmode = "";
 676
 677                         if (set_state == undefined) {
 678                                 cmode = "2";
 679                         } else if (set_state == true) {
 680                                 cmode = "1";
 681                         } else if (set_state == false) {
 682                                 cmode = "0";
 683                         }
 684
 685                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
 686                                 param_escape(rows.toString()) + "&cmode=" + cmode;
 687
 688                         _catchup_callback_func = callback_func;
 689
 690                         notify_progress("Loading, please wait...");
 691
 692                         xmlhttp_rpc.open("GET", query, true);
 693                         xmlhttp_rpc.onreadystatechange=catchup_callback;
 694                         xmlhttp_rpc.send(null);
 695
 696                 }
 697
 698         } catch (e) {
 699                 exception_error("selectionToggleUnread", e);
 700         }
 701 }
 702
 703 function selectionToggleMarked(cdm_mode) {
 704         try {
 705                 if (!xmlhttp_ready(xmlhttp_rpc)) {
 706                         printLockingError();
 707                         return;
 708                 }
 709
 710                 var rows;
 711
 712                 if (cdm_mode) {
 713                         rows = cdmGetSelectedArticles();
 714                 } else {
 715                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 716                 }
 717
 718                 if (rows.length == 0) {
 719                         alert(__("No articles are selected."));
 720                         return;
 721                 }
 722
 723                 for (i = 0; i < rows.length; i++) {
 724                         var row = document.getElementById("RROW-" + rows[i]);
 725                         var mark_img = document.getElementById("FMPIC-" + rows[i]);
 726
 727                         if (row && mark_img) {
 728
 729                                 if (mark_img.alt == "Set mark") {
 730                                         mark_img.src = "images/mark_set.png";
 731                                         mark_img.alt = "Reset mark";
 732                                         //mark_img.setAttribute('onclick',
 733                                         //      'javascript:toggleMark('+rows[i]+', false)');
 734
 735                                 } else {
 736                                         mark_img.src = "images/mark_unset.png";
 737                                         mark_img.alt = "Set mark";
 738
 739                                         //mark_img.alt = "Please wait...";
 740
 741                                         //mark_img.setAttribute('onclick',
 742                                         //      'javascript:toggleMark('+rows[i]+', true)');
 743
 744                                         //Effect.Puff(mark_img, {duration : 0.25, afterFinish: tMark_afh_off});
 745
 746                                 }
 747                         }
 748                 }
 749
 750                 if (rows.length > 0) {
 751
 752                         var query = "backend.php?op=rpc&subop=markSelected&ids=" +
 753                                 param_escape(rows.toString()) + "&cmode=2";
 754
 755                         query = query + "&afid=" + getActiveFeedId();
 756
 757                         if (tagsAreDisplayed()) {
 758                                 query = query + "&omode=tl";
 759                         } else {
 760                                 query = query + "&omode=flc";
 761                         }
 762
 763                         xmlhttp_rpc.open("GET", query, true);
 764                         xmlhttp_rpc.onreadystatechange=all_counters_callback;
 765                         xmlhttp_rpc.send(null);
 766
 767                 }
 768
 769         } catch (e) {
 770                 exception_error("selectionToggleMarked", e);
 771         }
 772 }
 773
 774 function selectionTogglePublished(cdm_mode) {
 775         try {
 776                 if (!xmlhttp_ready(xmlhttp_rpc)) {
 777                         printLockingError();
 778                         return;
 779                 }
 780
 781                 var rows;
 782
 783                 if (cdm_mode) {
 784                         rows = cdmGetSelectedArticles();
 785                 } else {
 786                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 787                 }
 788
 789                 if (rows.length == 0) {
 790                         alert(__("No articles are selected."));
 791                         return;
 792                 }
 793
 794                 for (i = 0; i < rows.length; i++) {
 795                         var row = document.getElementById("RROW-" + rows[i]);
 796                         var mark_img = document.getElementById("FPPIC-" + rows[i]);
 797
 798                         if (row && mark_img) {
 799
 800                                 if (mark_img.alt == "Publish") {
 801                                         mark_img.src = "images/pub_set.png";
 802                                         mark_img.alt = "Unpublish";
 803 //                                      mark_img.setAttribute('onclick',
 804 //                                              'javascript:togglePub('+rows[i]+', false)');
 805
 806                                 } else {
 807                                         mark_img.src = "images/pub_unset.png";
 808                                         mark_img.alt = "Publish";
 809 //                                      mark_img.setAttribute('onclick',
 810 //                                              'javascript:togglePub('+rows[i]+', true)');
 811
 812 //                                      Effect.Puff(mark_img, {duration : 0.25, afterFinish: tPub_afh_off});
 813
 814                                 }
 815                         }
 816                 }
 817
 818                 if (rows.length > 0) {
 819
 820                         var query = "backend.php?op=rpc&subop=publishSelected&ids=" +
 821                                 param_escape(rows.toString()) + "&cmode=2";
 822
 823                         query = query + "&afid=" + getActiveFeedId();
 824
 825                         if (tagsAreDisplayed()) {
 826                                 query = query + "&omode=tl";
 827                         } else {
 828                                 query = query + "&omode=flc";
 829                         }
 830
 831                         xmlhttp_rpc.open("GET", query, true);
 832                         xmlhttp_rpc.onreadystatechange=all_counters_callback;
 833                         xmlhttp_rpc.send(null);
 834
 835                 }
 836
 837         } catch (e) {
 838                 exception_error("selectionToggleMarked", e);
 839         }
 840 }
 841
 842 function cdmGetSelectedArticles() {
 843         var sel_articles = new Array();
 844         var container = document.getElementById("headlinesInnerContainer");
 845
 846         for (i = 0; i < container.childNodes.length; i++) {
 847                 var child = container.childNodes[i];
 848
 849                 if (child.id.match("RROW-") && child.className.match("Selected")) {
 850                         var c_id = child.id.replace("RROW-", "");
 851                         sel_articles.push(c_id);
 852                 }
 853         }
 854
 855         return sel_articles;
 856 }
 857
 858 // mode = all,none,unread
 859 function cdmSelectArticles(mode) {
 860         var container = document.getElementById("headlinesInnerContainer");
 861
 862         for (i = 0; i < container.childNodes.length; i++) {
 863                 var child = container.childNodes[i];
 864
 865                 if (child.id.match("RROW-")) {
 866                         var aid = child.id.replace("RROW-", "");
 867
 868                         var cb = document.getElementById("RCHK-" + aid);
 869
 870                         if (mode == "all") {
 871                                 if (!child.className.match("Selected")) {
 872                                         child.className = child.className + "Selected";
 873                                         cb.checked = true;
 874                                 }
 875                         } else if (mode == "unread") {
 876                                 if (child.className.match("Unread") && !child.className.match("Selected")) {
 877                                         child.className = child.className + "Selected";
 878                                         cb.checked = true;
 879                                 }
 880                         } else {
 881                                 child.className = child.className.replace("Selected", "");
 882                                 cb.checked = false;
 883                         }
 884                 }
 885         }
 886 }
 887
 888 function catchupPage() {
 889
 890         var fn = getFeedName(getActiveFeedId(), active_feed_is_cat);
 891
 892         var str = __("Mark all visible articles in %s as read?");
 893
 894         str = str.replace("%s", fn);
 895
 896         if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
 897                 return;
 898         }
 899
 900         if (document.getElementById("headlinesList")) {
 901                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, 'Unread', true);
 902                 selectionToggleUnread(false, false, 'viewCurrentFeed()', true);
 903                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
 904         } else {
 905                 cdmSelectArticles('all');
 906                 selectionToggleUnread(true, false, 'viewCurrentFeed()', true)
 907                 cdmSelectArticles('none');
 908         }
 909 }
 910
 911 function catchupSelection() {
 912
 913         try {
 914
 915                 var rows;
 916
 917                 if (document.getElementById("headlinesList")) {
 918                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
 919                 } else {
 920                         rows = cdmGetSelectedArticles();
 921                 }
 922
 923                 if (rows.length == 0) {
 924                         alert(__("No articles are selected."));
 925                         return;
 926                 }
 927
 928
 929                 var fn = getFeedName(getActiveFeedId(), active_feed_is_cat);
 930
 931                 var str = __("Mark all selected articles in %s as read?");
 932
 933                 str = str.replace("%s", fn);
 934
 935                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
 936                         return;
 937                 }
 938
 939                 if (document.getElementById("headlinesList")) {
 940                         selectionToggleUnread(false, false, 'viewCurrentFeed()', true);
 941         //              selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
 942                 } else {
 943                         selectionToggleUnread(true, false, 'viewCurrentFeed()', true)
 944         //              cdmSelectArticles('none');
 945                 }
 946
 947         } catch (e) {
 948                 exception_error("catchupSelection", e);
 949         }
 950 }
 951
 952
 953 function labelFromSearch(search, search_mode, match_on, feed_id, is_cat) {
 954
 955         if (!xmlhttp_ready(xmlhttp_rpc)) {
 956                 printLockingError();
 957         }
 958
 959         var title = prompt(__("Please enter label title:"), "");
 960
 961         if (title) {
 962
 963                 var query = "backend.php?op=labelFromSearch&search=" + param_escape(search) +
 964                         "&smode=" + param_escape(search_mode) + "&match=" + param_escape(match_on) +
 965                         "&feed=" + param_escape(feed_id) + "&is_cat=" + param_escape(is_cat) +
 966                         "&title=" + param_escape(title);
 967
 968                 debug("LFS: " + query);
 969
 970                 xmlhttp_rpc.open("GET", query, true);
 971                 xmlhttp_rpc.onreadystatechange=dlg_frefresh_callback;
 972                 xmlhttp_rpc.send(null);
 973         }
 974
 975 }
 976
 977 function editArticleTags(id, feed_id, cdm_enabled) {
 978         _tag_active_post_id = id;
 979         _tag_active_feed_id = feed_id;
 980         _tag_active_cdm = cdm_enabled;
 981
 982         cache_invalidate(id);
 983
 984         try {
 985                 _tag_cdm_scroll = document.getElementById("headlinesInnerContainer").scrollTop;
 986         } catch (e) { }
 987         displayDlg('editArticleTags', id);
 988 }
 989
 990
 991 function tag_saved_callback() {
 992         if (xmlhttp_rpc.readyState == 4) {
 993                 try {
 994                         debug("in tag_saved_callback");
 995
 996                         closeInfoBox();
 997                         notify("");
 998
 999                         if (tagsAreDisplayed()) {
1000                                 _reload_feedlist_after_view = true;
1001                         }
1002
1003                         if (!_tag_active_cdm) {
1004                                 if (active_post_id == _tag_active_post_id) {
1005                                         debug("reloading current article");
1006                                         view(_tag_active_post_id, _tag_active_feed_id);
1007                                 }
1008                         } else {
1009                                 debug("reloading current feed");
1010                                 viewCurrentFeed();
1011                         }
1012
1013                 } catch (e) {
1014                         exception_error("catchup_callback", e);
1015                 }
1016         }
1017 }
1018
1019 function editTagsSave() {
1020
1021         if (!xmlhttp_ready(xmlhttp_rpc)) {
1022                 printLockingError();
1023         }
1024
1025         notify_progress("Saving article tags...");
1026
1027         var form = document.forms["tag_edit_form"];
1028
1029         var query = Form.serialize("tag_edit_form");
1030
1031         query = "backend.php?op=rpc&subop=setArticleTags&" + query;
1032
1033         debug(query);
1034
1035         xmlhttp_rpc.open("GET", query, true);
1036         xmlhttp_rpc.onreadystatechange=tag_saved_callback;
1037         xmlhttp_rpc.send(null);
1038
1039 }
1040
1041 function editTagsInsert() {
1042         try {
1043
1044                 var form = document.forms["tag_edit_form"];
1045
1046                 var found_tags = form.found_tags;
1047                 var tags_str = form.tags_str;
1048
1049                 var tag = found_tags[found_tags.selectedIndex].value;
1050
1051                 if (tags_str.value.length > 0 &&
1052                                 tags_str.value.lastIndexOf(", ") != tags_str.value.length - 2) {
1053
1054                         tags_str.value = tags_str.value + ", ";
1055                 }
1056
1057                 tags_str.value = tags_str.value + tag + ", ";
1058
1059                 found_tags.selectedIndex = 0;
1060
1061         } catch (e) {
1062                 exception_error(e, "editTagsInsert");
1063         }
1064 }
1065
1066 function cdmWatchdog() {
1067
1068         try {
1069
1070                 var ctr = document.getElementById("headlinesInnerContainer");
1071
1072                 if (!ctr) return;
1073
1074                 var ids = new Array();
1075
1076                 var e = ctr.firstChild;
1077
1078                 while (e) {
1079                         if (e.className && e.className == "cdmArticleUnread" && e.id &&
1080                                         e.id.match("RROW-")) {
1081
1082                                 // article fits in viewport OR article is longer than viewport and
1083                                 // its bottom is visible
1084
1085                                 if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <=
1086                                                 ctr.scrollTop + ctr.offsetHeight) {
1087
1088 //                                      debug(e.id + " is visible " + e.offsetTop + "." +
1089 //                                              (e.offsetTop + e.offsetHeight) + " vs " + ctr.scrollTop + "." +
1090 //                                              (ctr.scrollTop + ctr.offsetHeight));
1091
1092                                         ids.push(e.id.replace("RROW-", ""));
1093
1094                                 } else if (e.offsetHeight > ctr.offsetHeight &&
1095                                                 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1096                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
1097
1098                                         ids.push(e.id.replace("RROW-", ""));
1099
1100                                 }
1101
1102                                 // method 2: article bottom is visible and is in upper 1/2 of the viewport
1103
1104 /*                              if (e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1105                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight/2) {
1106
1107                                         ids.push(e.id.replace("RROW-", ""));
1108
1109                                 } */
1110
1111                         }
1112
1113                         e = e.nextSibling;
1114                 }
1115
1116                 debug("cdmWatchdog, ids= " + ids.toString());
1117
1118                 if (ids.length > 0 && xmlhttp_ready(xmlhttp_rpc)) {
1119
1120                         for (var i = 0; i < ids.length; i++) {
1121                                 var e = document.getElementById("RROW-" + ids[i]);
1122                                 if (e) {
1123                                         e.className = e.className.replace("Unread", "");
1124                                 }
1125                         }
1126
1127                         var query = "backend.php?op=rpc&subop=catchupSelected&ids=" +
1128                                 param_escape(ids.toString()) + "&cmode=0";
1129
1130                         xmlhttp_rpc.open("GET", query, true);
1131                         xmlhttp_rpc.onreadystatechange=all_counters_callback;
1132                         xmlhttp_rpc.send(null);
1133
1134                 }
1135
1136                 _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 4000);
1137
1138         } catch (e) {
1139                 exception_error(e, "cdmWatchdog");
1140         }
1141
1142 }
1143
1144
1145 function cache_inject(id, article) {
1146         if (!cache_check(id)) {
1147                 debug("cache_article: miss: " + id);
1148
1149                 var cache_obj = new Array();
1150
1151                 cache_obj["id"] = id;
1152                 cache_obj["data"] = article;
1153
1154                 article_cache.push(cache_obj);
1155
1156         } else {
1157                 debug("cache_article: hit: " + id);
1158         }
1159 }
1160
1161 function cache_find(id) {
1162         for (var i = 0; i < article_cache.length; i++) {
1163                 if (article_cache[i]["id"] == id) {
1164                         return article_cache[i]["data"];
1165                 }
1166         }
1167         return false;
1168 }
1169
1170 function cache_check(id) {
1171         for (var i = 0; i < article_cache.length; i++) {
1172                 if (article_cache[i]["id"] == id) {
1173                         return true;
1174                 }
1175         }
1176         return false;
1177 }
1178
1179 function cache_expire() {
1180         while (article_cache.length > 20) {
1181                 article_cache.shift();
1182         }
1183 }
1184
1185 function cache_invalidate(id) {
1186         var i = 0
1187
1188         try {
1189
1190                 while (i < article_cache.length) {
1191                         if (article_cache[i]["id"] == id) {
1192                                 debug("cache_invalidate: removed id " + id);
1193                                 article_cache.splice(i, 1);
1194                                 return true;
1195                         }
1196                         i++;
1197                 }
1198                 debug("cache_invalidate: id not found: " + id);
1199                 return false;
1200         } catch (e) {
1201                 exception_error("cache_invalidate", e);
1202         }
1203 }
1204
1205 function getActiveArticleId() {
1206         return active_post_id;
1207 }
1208
1209 function cdmMouseIn(elem) {
1210         try {
1211                 if (elem.id && elem.id.match("RROW-")) {
1212                         var id = elem.id.replace("RROW-", "");
1213                         active_post_id = id;
1214                 }
1215         } catch (e) {
1216                 exception_error("cdmMouseIn", e);
1217         }
1218
1219 }
1220
1221 function cdmMouseOut(elem) {
1222         active_post_id = false;
1223 }
1224
1225 function headlines_scroll_handler() {
1226         try {
1227
1228                 var e = document.getElementById("headlinesInnerContainer");
1229
1230                 if (e.scrollTop + e.offsetHeight > e.scrollHeight - 300) {
1231                         debug("more cowbell!");
1232
1233                         viewNextFeedPage();
1234                 }
1235
1236         } catch (e) {
1237                 exception_error("headlines_scroll_handler", e);
1238         }
1239 }