tt-rss.js

   1
   2 var total_unread = 0;
   3 var first_run = true;
   4 var display_tags = false;
   5 var global_unread = -1;
   6 var active_title_text = "";
   7 var current_subtitle = "";
   8 var daemon_enabled = false;
   9 var daemon_refresh_only = false;
  10 //var _qfd_deleted_feed = 0;
  11 var firsttime_update = true;
  12 var _active_feed_id = 0;
  13 var _active_feed_is_cat = false;
  14 var number_of_feeds = 0;
  15 var sanity_check_done = false;
  16 var _hfd_scrolltop = 0;
  17 var hotkey_prefix = false;
  18 var hotkey_prefix_pressed = false;
  19 var init_params = new Object();
  20 var ver_offset = 0;
  21 var hor_offset = 0;
  22 var feeds_sort_by_unread = false;
  23 var feedlist_sortable_enabled = false;
  24
  25 function activeFeedIsCat() {
  26         return _active_feed_is_cat;
  27 }
  28
  29 function getActiveFeedId() {
  30         try {
  31                 debug("gAFID: " + _active_feed_id);
  32                 return _active_feed_id;
  33         } catch (e) {
  34                 exception_error("getActiveFeedId", e);
  35         }
  36 }
  37
  38 function setActiveFeedId(id, is_cat) {
  39         try {
  40                 debug("sAFID(" + id + ", " + is_cat + ")");
  41                 _active_feed_id = id;
  42
  43                 if (is_cat != undefined) {
  44                         _active_feed_is_cat = is_cat;
  45                 }
  46
  47         } catch (e) {
  48                 exception_error("setActiveFeedId", e);
  49         }
  50 }
  51
  52
  53 function isFeedlistSortable() {
  54         return feedlist_sortable_enabled;
  55 }
  56
  57 function tagsAreDisplayed() {
  58         return display_tags;
  59 }
  60
  61 function toggleTags(show_all) {
  62
  63         try {
  64
  65         debug("toggleTags: " + show_all + "; " + display_tags);
  66
  67         var p = $("dispSwitchPrompt");
  68
  69         if (!show_all && !display_tags) {
  70                 displayDlg("printTagCloud");
  71         } else if (show_all) {
  72                 closeInfoBox();
  73                 display_tags = true;
  74                 p.innerHTML = __("display feeds");
  75                 notify_progress("Loading, please wait...", true);
  76                 updateFeedList();
  77         } else if (display_tags) {
  78                 display_tags = false;
  79                 p.innerHTML = __("tag cloud");
  80                 notify_progress("Loading, please wait...", true);
  81                 updateFeedList();
  82         }
  83
  84         } catch (e) {
  85                 exception_error("toggleTags", e);
  86         }
  87 }
  88
  89 function dlg_frefresh_callback(transport, deleted_feed) {
  90         if (getActiveFeedId() == deleted_feed) {
  91                 var h = $("headlines-frame");
  92                 if (h) {
  93                         h.innerHTML = "<div class='whiteBox'>" + __('No feed selected.') + "</div>";
  94                 }
  95         }
  96
  97         setTimeout('updateFeedList(false, false)', 50);
  98         closeInfoBox();
  99 }
 100
 101 function backend_sanity_check_callback(transport) {
 102
 103         try {
 104
 105                 if (sanity_check_done) {
 106                         fatalError(11, "Sanity check request received twice. This can indicate "+
 107                       "presence of Firebug or some other disrupting extension. "+
 108                                 "Please disable it and try again.");
 109                         return;
 110                 }
 111
 112                 if (!transport.responseXML) {
 113                         if (!store) {
 114                                 fatalError(3, "Sanity check: Received reply is not XML",
 115                                         transport.responseText);
 116                                 return;
 117                         } else {
 118                                 init_offline();
 119                                 return;
 120                         }
 121                 }
 122
 123                 if (getURLParam("offline")) {
 124                         return init_offline();
 125                 }
 126
 127                 var reply = transport.responseXML.firstChild.firstChild;
 128
 129                 if (!reply) {
 130                         fatalError(3, "Sanity check: invalid RPC reply", transport.responseText);
 131                         return;
 132                 }
 133
 134                 var error_code = reply.getAttribute("error-code");
 135
 136                 if (error_code && error_code != 0) {
 137                         return fatalError(error_code, reply.getAttribute("error-msg"));
 138                 }
 139
 140                 debug("sanity check ok");
 141
 142                 var params = reply.nextSibling;
 143
 144                 if (params) {
 145                         debug('reading init-params...');
 146                         var param = params.firstChild;
 147
 148                         while (param) {
 149                                 var k = param.getAttribute("key");
 150                                 var v = param.getAttribute("value");
 151                                 debug(k + " => " + v);
 152                                 init_params[k] = v;
 153
 154                                 if (db) {
 155                                         db.execute("DELETE FROM init_params WHERE key = ?", [k]);
 156                                         db.execute("INSERT INTO init_params (key,value) VALUES (?, ?)",
 157                                                 [k, v]);
 158                                 }
 159
 160                                 param = param.nextSibling;
 161                         }
 162                 }
 163
 164                 sanity_check_done = true;
 165
 166                 init_second_stage();
 167
 168         } catch (e) {
 169                 exception_error("backend_sanity_check_callback", e, transport);
 170         }
 171 }
 172
 173 function scheduleFeedUpdate(force) {
 174
 175         debug("in scheduleFeedUpdate");
 176
 177 /*      if (!daemon_enabled && !daemon_refresh_only) {
 178                 notify_progress("Updating feeds...", true);
 179         } */
 180
 181         var query_str = "backend.php?op=rpc&subop=";
 182
 183         if (force) {
 184                 query_str = query_str + "forceUpdateAllFeeds";
 185         } else {
 186                 query_str = query_str + "updateAllFeeds";
 187         }
 188
 189         var omode;
 190
 191         if (firsttime_update && !navigator.userAgent.match("Opera")) {
 192                 firsttime_update = false;
 193                 omode = "T";
 194         } else {
 195                 if (display_tags) {
 196                         omode = "tl";
 197                 } else {
 198                         omode = "flc";
 199                 }
 200         }
 201
 202         query_str = query_str + "&omode=" + omode;
 203         query_str = query_str + "&uctr=" + global_unread;
 204
 205         var date = new Date();
 206         var timestamp = Math.round(date.getTime() / 1000);
 207         query_str = query_str + "&ts=" + timestamp
 208
 209         debug("REFETCH query: " + query_str);
 210
 211         new Ajax.Request("backend.php", {
 212                 parameters: query_str,
 213                 onComplete: function(transport) {
 214                                 parse_counters_reply(transport, true);
 215                         } });
 216 }
 217
 218 function updateFeedList(silent, fetch) {
 219
 220 //      if (silent != true) {
 221 //              notify("Loading feed list...");
 222 //      }
 223
 224         debug("<b>updateFeedList</b>");
 225
 226         if (offline_mode) return render_offline_feedlist();
 227
 228         var query_str = "backend.php?op=feeds";
 229
 230         if (display_tags) {
 231                 query_str = query_str + "&tags=1";
 232         }
 233
 234         if (getActiveFeedId() && !activeFeedIsCat()) {
 235                 query_str = query_str + "&actid=" + getActiveFeedId();
 236         }
 237
 238         var date = new Date();
 239         var timestamp = Math.round(date.getTime() / 1000);
 240         query_str = query_str + "&ts=" + timestamp
 241
 242         if (fetch) query_str = query_str + "&fetch=yes";
 243
 244 //      var feeds_frame = $("feeds-frame");
 245 //      feeds_frame.src = query_str;
 246
 247         debug("updateFeedList Q=" + query_str);
 248
 249         new Ajax.Request("backend.php", {
 250                 parameters: query_str,
 251                 onComplete: function(transport) {
 252                         feedlist_callback2(transport);
 253                 } });
 254
 255 }
 256
 257 function catchupAllFeeds() {
 258
 259         var str = __("Mark all articles as read?");
 260
 261         if (getInitParam("confirm_feed_catchup") != 1 || confirm(str)) {
 262
 263                 var query_str = "backend.php?op=feeds&subop=catchupAll";
 264
 265                 notify_progress("Marking all feeds as read...");
 266
 267                 debug("catchupAllFeeds Q=" + query_str);
 268
 269                 new Ajax.Request("backend.php", {
 270                         parameters: query_str,
 271                         onComplete: function(transport) {
 272                                 feedlist_callback2(transport);
 273                         } });
 274
 275                 global_unread = 0;
 276                 updateTitle("");
 277         }
 278 }
 279
 280 function viewCurrentFeed(subop) {
 281
 282 //      if (getActiveFeedId()) {
 283         if (getActiveFeedId() != undefined) {
 284                 viewfeed(getActiveFeedId(), subop, activeFeedIsCat());
 285         } else {
 286                 disableContainerChildren("headlinesToolbar", false, document);
 287 //              viewfeed(-1, subop); // FIXME
 288         }
 289         return false; // block unneeded form submits
 290 }
 291
 292 function viewfeed(feed, subop) {
 293         var f = window.frames["feeds-frame"];
 294         f.viewfeed(feed, subop);
 295 }
 296
 297 function timeout() {
 298         if (getInitParam("bw_limit") == "1") return;
 299
 300         scheduleFeedUpdate(false);
 301
 302         var refresh_time = getInitParam("feeds_frame_refresh");
 303
 304         if (!refresh_time) refresh_time = 600;
 305
 306         setTimeout("timeout()", refresh_time*1000);
 307 }
 308
 309 function resetSearch() {
 310         var searchbox = $("searchbox")
 311
 312         if (searchbox.value != "" && getActiveFeedId()) {
 313                 searchbox.value = "";
 314                 viewfeed(getActiveFeedId(), "");
 315         }
 316 }
 317
 318 function searchCancel() {
 319         closeInfoBox(true);
 320 }
 321
 322 function search() {
 323         closeInfoBox();
 324         viewCurrentFeed(0, "");
 325 }
 326
 327 // if argument is undefined, current subtitle is not updated
 328 // use blank string to clear subtitle
 329 function updateTitle(s) {
 330         var tmp = "Tiny Tiny RSS";
 331
 332         if (s != undefined) {
 333                 current_subtitle = s;
 334         }
 335
 336         if (global_unread > 0) {
 337                 tmp = tmp + " (" + global_unread + ")";
 338         }
 339
 340         if (current_subtitle) {
 341                 tmp = tmp + " - " + current_subtitle;
 342         }
 343
 344         if (active_title_text.length > 0) {
 345                 tmp = tmp + " > " + active_title_text;
 346         }
 347
 348         document.title = tmp;
 349 }
 350
 351 function genericSanityCheck() {
 352
 353 //      if (!Ajax.getTransport()) fatalError(1);
 354
 355         setCookie("ttrss_test", "TEST");
 356
 357         if (getCookie("ttrss_test") != "TEST") {
 358                 fatalError(2);
 359         }
 360
 361         return true;
 362 }
 363
 364 function init() {
 365
 366         try {
 367
 368                 init_gears();
 369
 370                 disableContainerChildren("headlinesToolbar", true);
 371
 372                 Form.disable("main_toolbar_form");
 373
 374                 if (!genericSanityCheck())
 375                         return;
 376
 377                 if (getURLParam('debug')) {
 378                         Element.show("debug_output");
 379                         debug('debug mode activated');
 380                 }
 381
 382                 var params = "&ua=" + param_escape(navigator.userAgent);
 383
 384                 loading_set_progress(30);
 385
 386                 new Ajax.Request("backend.php", {
 387                         parameters: "backend.php?op=rpc&subop=sanityCheck" + params,
 388                         onComplete: function(transport) {
 389                                         backend_sanity_check_callback(transport);
 390                                 } });
 391
 392         } catch (e) {
 393                 exception_error("init", e);
 394         }
 395 }
 396
 397 function resize_headlines(delta_x, delta_y) {
 398
 399         try {
 400
 401                 debug("resize_headlines: " + delta_x + ":" + delta_y);
 402
 403                 var h_frame = $("headlines-frame");
 404                 var c_frame = $("content-frame");
 405                 var f_frame = $("footer");
 406                 var feeds_frame = $("feeds-holder");
 407                 var resize_grab = $("resize-grabber");
 408                 var resize_handle = $("resize-handle");
 409
 410                 if (!c_frame || !h_frame) return;
 411
 412                 if (feeds_frame && getInitParam("theme") == "old-skool") {
 413                                 feeds_frame.style.bottom = f_frame.offsetHeight + "px";
 414                 }
 415
 416                 if (getInitParam("theme_options").match("horiz_resize")) {
 417
 418                         if (delta_x != undefined) {
 419                                 if (c_frame.offsetLeft - delta_x > feeds_frame.offsetWidth + feeds_frame.offsetLeft + 100 && c_frame.offsetWidth + delta_x > 100) {
 420                                         hor_offset = hor_offset + delta_x;
 421                                 }
 422                         }
 423
 424                         debug("resize_headlines: HOR-mode: " + hor_offset);
 425
 426                         c_frame.style.width = (400 + hor_offset) + "px";
 427                         h_frame.style.right = c_frame.offsetWidth - 1 + "px";
 428
 429                         resize_grab.style.top = (h_frame.offsetTop + h_frame.offsetHeight - 60) + "px";
 430                         resize_grab.style.left = (h_frame.offsetLeft + h_frame.offsetWidth -
 431                                 4) + "px";
 432                         resize_grab.style.display = "block";
 433
 434                         resize_handle.src = "themes/"+getInitParam('theme')+"/images/resize_handle_vert.png";
 435                         resize_handle.style.paddingTop = (resize_grab.offsetHeight / 2 - 7) + "px";
 436
 437                 } else {
 438
 439                         if (delta_y != undefined) {
 440                                 if (c_frame.offsetHeight + delta_y > 100 && h_frame.offsetHeight - delta_y > 100) {
 441                                         ver_offset = ver_offset + delta_y;
 442                                 }
 443                         }
 444
 445                         debug("resize_headlines: VER-mode: " + ver_offset);
 446
 447                         h_frame.style.height = (300 - ver_offset) + "px";
 448
 449                         c_frame.style.top = (h_frame.offsetTop + h_frame.offsetHeight + 0) + "px";
 450                         h_frame.style.height = h_frame.offsetHeight + "px";
 451
 452                 }
 453
 454                 if (getInitParam("cookie_lifetime") != 0) {
 455                         setCookie("ttrss_offset_ver", ver_offset,
 456                                 getInitParam("cookie_lifetime"));
 457                         setCookie("ttrss_offset_hor", hor_offset,
 458                                 getInitParam("cookie_lifetime"));
 459                 } else {
 460                         setCookie("ttrss_offset_ver", ver_offset);
 461                         setCookie("ttrss_offset_hor", hor_offset);
 462                 }
 463
 464         } catch (e) {
 465                 exception_error("resize_headlines", e);
 466         }
 467
 468 }
 469
 470 function init_second_stage() {
 471
 472         try {
 473
 474                 delCookie("ttrss_test");
 475
 476 //              document.onresize = resize_headlines;
 477                 window.onresize=resize_headlines;
 478
 479                 var toolbar = document.forms["main_toolbar_form"];
 480
 481                 dropboxSelect(toolbar.view_mode, getInitParam("default_view_mode"));
 482                 dropboxSelect(toolbar.order_by, getInitParam("default_view_order_by"));
 483
 484                 daemon_enabled = getInitParam("daemon_enabled") == 1;
 485                 daemon_refresh_only = getInitParam("daemon_refresh_only") == 1;
 486                 feeds_sort_by_unread = getInitParam("feeds_sort_by_unread") == 1;
 487
 488 /*              var fl = cache_find_param("FEEDLIST", getInitParam("num_feeds"));
 489
 490                 if (fl) {
 491                         render_feedlist(fl);
 492                         if ($("feedList")) {
 493                                 request_counters();
 494                         } else {
 495                                 setTimeout('updateFeedList(false, false)', 50);
 496                         }
 497                 } else {
 498                         setTimeout('updateFeedList(false, false)', 50);
 499                 } */
 500
 501                 setTimeout('updateFeedList(false, false)', 50);
 502
 503                 debug("second stage ok");
 504
 505                 loading_set_progress(60);
 506
 507                 ver_offset = parseInt(getCookie("ttrss_offset_ver"));
 508                 hor_offset = parseInt(getCookie("ttrss_offset_hor"));
 509
 510                 debug("got offsets from cookies: ver " + ver_offset + " hor " + hor_offset);
 511
 512                 /* fuck IE */
 513
 514                 if (isNaN(hor_offset)) hor_offset = 0;
 515                 if (isNaN(ver_offset)) ver_offset = 0;
 516
 517                 debug("offsets from cookies [x:y]: " + hor_offset + ":" + ver_offset);
 518
 519                 resize_headlines();
 520
 521                 enable_offline_reading();
 522
 523         } catch (e) {
 524                 exception_error("init_second_stage", e);
 525         }
 526 }
 527
 528 function quickMenuChange() {
 529         var chooser = $("quickMenuChooser");
 530         var opid = chooser[chooser.selectedIndex].value;
 531
 532         chooser.selectedIndex = 0;
 533         quickMenuGo(opid);
 534 }
 535
 536 function quickMenuGo(opid) {
 537         try {
 538
 539                 if (opid == "qmcPrefs") {
 540                         gotoPreferences();
 541                 }
 542
 543                 if (opid == "qmcSearch") {
 544                         displayDlg("search", getActiveFeedId() + ":" + activeFeedIsCat());
 545                         return;
 546                 }
 547
 548                 if (opid == "qmcAddFeed") {
 549                         displayDlg('quickAddFeed', '',
 550                                            function () {$('feed_url').focus();});
 551                         return;
 552                 }
 553
 554                 if (opid == "qmcEditFeed") {
 555                         editFeedDlg(getActiveFeedId());
 556                 }
 557
 558                 if (opid == "qmcRemoveFeed") {
 559                         var actid = getActiveFeedId();
 560
 561                         if (activeFeedIsCat()) {
 562                                 alert(__("You can't unsubscribe from the category."));
 563                                 return;
 564                         }
 565
 566                         if (!actid) {
 567                                 alert(__("Please select some feed first."));
 568                                 return;
 569                         }
 570
 571                         var fn = getFeedName(actid);
 572
 573                         var pr = __("Unsubscribe from %s?").replace("%s", fn);
 574
 575                         if (confirm(pr)) {
 576                                 unsubscribeFeed(actid);
 577                         }
 578
 579                         return;
 580                 }
 581
 582                 if (opid == "qmcClearFeed") {
 583                         var actid = getActiveFeedId();
 584
 585                         if (!actid) {
 586                                 alert(__("Please select some feed first."));
 587                                 return;
 588                         }
 589
 590                         if (activeFeedIsCat() || actid < 0) {
 591                                 alert(__("You can't clear this type of feed."));
 592                                 return;
 593                         }
 594
 595                         var fn = getFeedName(actid);
 596
 597                         var pr = __("Erase all non-starred articles in %s?").replace("%s", fn);
 598
 599                         if (confirm(pr)) {
 600                                 clearFeedArticles(actid);
 601                         }
 602
 603                         return;
 604                 }
 605
 606
 607                 if (opid == "qmcUpdateFeeds") {
 608                         scheduleFeedUpdate(true);
 609                         return;
 610                 }
 611
 612                 if (opid == "qmcCatchupAll") {
 613                         catchupAllFeeds();
 614                         return;
 615                 }
 616
 617                 if (opid == "qmcShowOnlyUnread") {
 618                         toggleDispRead();
 619                         return;
 620                 }
 621
 622                 if (opid == "qmcAddFilter") {
 623                         displayDlg("quickAddFilter", getActiveFeedId());
 624                 }
 625
 626                 if (opid == "qmcAddLabel") {
 627                         addLabel();
 628                 }
 629
 630                 if (opid == "qmcRescoreFeed") {
 631                         rescoreCurrentFeed();
 632                 }
 633
 634                 if (opid == "qmcHKhelp") {
 635                         //Element.show("hotkey_help_overlay");
 636                         Effect.Appear("hotkey_help_overlay", {duration : 0.3});
 637                 }
 638
 639                 if (opid == "qmcResetUI") {
 640                         hor_offset = 0;
 641                         ver_offset = 0;
 642                         resize_headlines();
 643                 }
 644
 645                 if (opid == "qmcResetCats") {
 646
 647                         if (confirm(__("Reset category order?"))) {
 648
 649                                 var query = "?op=feeds&subop=catsortreset";
 650
 651                                 notify_progress("Loading, please wait...", true);
 652
 653                                 new Ajax.Request("backend.php", {
 654                                         parameters: query,
 655                                         onComplete: function(transport) {
 656                                                 window.setTimeout('updateFeedList(false, false)', 50);
 657                                         } });
 658                         }
 659                 }
 660
 661         } catch (e) {
 662                 exception_error("quickMenuGo", e);
 663         }
 664 }
 665
 666 function unsubscribeFeed(feed_id, title) {
 667
 668
 669         var msg = __("Unsubscribe from %s?").replace("%s", title);
 670
 671         if (title == undefined || confirm(msg)) {
 672                 notify_progress("Removing feed...");
 673
 674                 var query = "?op=pref-feeds&quiet=1&subop=remove&ids=" + feed_id;
 675
 676                 new Ajax.Request("backend.php", {
 677                         parameters: query,
 678                         onComplete: function(transport) {
 679                                         dlg_frefresh_callback(transport, feed_id);
 680                                 } });
 681         }
 682
 683         return false;
 684 }
 685
 686
 687 function updateFeedTitle(t) {
 688         active_title_text = t;
 689         updateTitle();
 690 }
 691
 692 function toggleDispRead() {
 693         try {
 694
 695                 var hide = !(getInitParam("hide_read_feeds") == "1");
 696
 697                 hideOrShowFeeds(hide);
 698
 699                 var query = "?op=rpc&subop=setpref&key=HIDE_READ_FEEDS&value=" +
 700                         param_escape(hide);
 701
 702                 new Ajax.Request("backend.php", {
 703                         parameters: query,
 704                         onComplete: function(transport) {
 705                                 setInitParam("hide_read_feeds", hide);
 706                         } });
 707
 708         } catch (e) {
 709                 exception_error("toggleDispRead", e);
 710         }
 711 }
 712
 713 function parse_runtime_info(elem) {
 714         if (!elem) {
 715                 debug("parse_runtime_info: elem is null, aborting");
 716                 return;
 717         }
 718
 719         var param = elem.firstChild;
 720
 721         debug("parse_runtime_info: " + param);
 722
 723         while (param) {
 724                 var k = param.getAttribute("key");
 725                 var v = param.getAttribute("value");
 726
 727                 debug("RI: " + k + " => " + v);
 728
 729                 if (k == "num_feeds") {
 730                         init_params[k] = v;
 731                 }
 732
 733                 if (k == "new_version_available") {
 734                         var icon = $("newVersionIcon");
 735                         if (icon) {
 736                                 if (v == "1") {
 737                                         icon.style.display = "inline";
 738                                 } else {
 739                                         icon.style.display = "none";
 740                                 }
 741                         }
 742                 }
 743
 744                 var error_flag;
 745
 746                 if (k == "daemon_is_running" && v != 1) {
 747                         notify_error("<span onclick=\"javascript:explainError(1)\">Update daemon is not running.</span>", true);
 748                         error_flag = true;
 749                 }
 750
 751                 if (k == "daemon_stamp_ok" && v != 1) {
 752                         notify_error("<span onclick=\"javascript:explainError(3)\">Update daemon is not updating feeds.</span>", true);
 753                         error_flag = true;
 754                 }
 755
 756                 if (!error_flag) {
 757                         notify('');
 758                 }
 759
 760 /*              var w = $("noDaemonWarning");
 761
 762                 if (w) {
 763                         if (k == "daemon_is_running" && v != 1) {
 764                                 w.style.display = "block";
 765                         } else {
 766                                 w.style.display = "none";
 767                         }
 768                 } */
 769                 param = param.nextSibling;
 770         }
 771 }
 772
 773 function catchupCurrentFeed() {
 774
 775         var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
 776
 777         var str = __("Mark all articles in %s as read?").replace("%s", fn);
 778
 779         if (getInitParam("confirm_feed_catchup") != 1 || confirm(str)) {
 780                 return viewCurrentFeed('MarkAllRead')
 781         }
 782 }
 783
 784 function catchupFeedInGroup(id) {
 785
 786         try {
 787
 788                 var title = getFeedName(id);
 789
 790                 var str = __("Mark all articles in %s as read?").replace("%s", title);
 791
 792                 if (getInitParam("confirm_feed_catchup") != 1 || confirm(str)) {
 793                         return viewCurrentFeed('MarkAllReadGR:' + id)
 794                 }
 795
 796         } catch (e) {
 797                 exception_error("catchupFeedInGroup", e);
 798         }
 799 }
 800
 801 function editFeedDlg(feed) {
 802         try {
 803
 804                 if (!feed) {
 805                         alert(__("Please select some feed first."));
 806                         return;
 807                 }
 808
 809                 if ((feed <= 0) || activeFeedIsCat() || tagsAreDisplayed()) {
 810                         alert(__("You can't edit this kind of feed."));
 811                         return;
 812                 }
 813
 814                 var query = "";
 815
 816                 if (feed > 0) {
 817                         query = "?op=pref-feeds&subop=editfeed&id=" +   param_escape(feed);
 818                 } else {
 819                         query = "?op=pref-labels&subop=edit&id=" +      param_escape(-feed-11);
 820                 }
 821
 822                 disableHotkeys();
 823
 824                 notify_progress("Loading, please wait...", true);
 825
 826                 new Ajax.Request("backend.php", {
 827                         parameters: query,
 828                         onComplete: function(transport) {
 829                                 infobox_callback2(transport);
 830                         } });
 831
 832         } catch (e) {
 833                 exception_error("editFeedDlg", e);
 834         }
 835 }
 836
 837 /* this functions duplicate those of prefs.js feed editor, with
 838         some differences because there is no feedlist */
 839
 840 function feedEditCancel() {
 841         closeInfoBox();
 842         return false;
 843 }
 844
 845 function feedEditSave() {
 846
 847         try {
 848
 849                 // FIXME: add parameter validation
 850
 851                 var query = Form.serialize("edit_feed_form");
 852
 853                 notify_progress("Saving feed...");
 854
 855                 new Ajax.Request("backend.php", {
 856                         parameters: query,
 857                         onComplete: function(transport) {
 858                                 dlg_frefresh_callback(transport);
 859                         } });
 860
 861
 862                 closeInfoBox();
 863
 864                 return false;
 865
 866         } catch (e) {
 867                 exception_error("feedEditSave (main)", e);
 868         }
 869 }
 870
 871 function clearFeedArticles(feed_id) {
 872
 873         notify_progress("Clearing feed...");
 874
 875         var query = "?op=pref-feeds&quiet=1&subop=clear&id=" + feed_id;
 876
 877         new Ajax.Request("backend.php", {
 878                 parameters: query,
 879                 onComplete: function(transport) {
 880                                 dlg_frefresh_callback(transport, feed_id);
 881                         } });
 882
 883         return false;
 884 }
 885
 886 function collapse_feedlist() {
 887         try {
 888                 debug("collapse_feedlist");
 889
 890                 var theme = getInitParam("theme");
 891                 if (theme != "" && theme != "compact" && theme != "graycube" &&
 892                                 theme != "old-skool") return;
 893
 894                 var fl = $("feeds-holder");
 895                 var fh = $("headlines-frame");
 896                 var fc = $("content-frame");
 897                 var ft = $("toolbar");
 898                 var ff = $("footer");
 899                 var fhdr = $("header");
 900                 var fbtn = $("collapse_feeds_btn");
 901
 902                 if (!Element.visible(fl)) {
 903                         Element.show(fl);
 904                         fbtn.innerHTML = "<<";
 905
 906                         if (theme != "graycube") {
 907
 908                                 fh.style.left = fl.offsetWidth + "px";
 909                                 ft.style.left = fl.offsetWidth + "px";
 910                                 if (fc) fc.style.left = fl.offsetWidth + "px";
 911                                 if (ff && theme != "compat") ff.style.left = (fl.offsetWidth-1) + "px";
 912
 913                                 if (theme == "compact") fhdr.style.left = (fl.offsetWidth + 10) + "px";
 914                         } else {
 915                                 fh.style.left = fl.offsetWidth + 40 + "px";
 916                                 ft.style.left = fl.offsetWidth + 40 +"px";
 917                                 if (fc) fc.style.left = fl.offsetWidth + 40 + "px";
 918                         }
 919
 920                         query = "?op=rpc&subop=setpref&key=_COLLAPSED_FEEDLIST&value=false";
 921
 922                         new Ajax.Request("backend.php", { parameters: query });
 923
 924                 } else {
 925                         Element.hide(fl);
 926                         fbtn.innerHTML = ">>";
 927
 928                         if (theme != "graycube") {
 929
 930                                 fh.style.left = "0px";
 931                                 ft.style.left = "0px";
 932                                 if (fc) fc.style.left = "0px";
 933                                 if (ff) ff.style.left = "0px";
 934
 935                                 if (theme == "compact") fhdr.style.left = "10px";
 936
 937                         } else {
 938                                 fh.style.left = "20px";
 939                                 ft.style.left = "20px";
 940                                 if (fc) fc.style.left = "20px";
 941
 942                         }
 943
 944                         query = "?op=rpc&subop=setpref&key=_COLLAPSED_FEEDLIST&value=true";
 945
 946                         new Ajax.Request("backend.php", { parameters: query });
 947
 948                 }
 949         } catch (e) {
 950                 exception_error("collapse_feedlist", e);
 951         }
 952 }
 953
 954 function viewModeChanged() {
 955         cache_empty();
 956         return viewCurrentFeed(0, '')
 957 }
 958
 959 function viewLimitChanged() {
 960         cache_empty();
 961         return viewCurrentFeed(0, '')
 962 }
 963
 964 /* function adjustArticleScore(id, score) {
 965         try {
 966
 967                 var pr = prompt(__("Assign score to article:"), score);
 968
 969                 if (pr != undefined) {
 970                         var query = "?op=rpc&subop=setScore&id=" + id + "&score=" + pr;
 971
 972                         new Ajax.Request("backend.php", {
 973                         parameters: query,
 974                         onComplete: function(transport) {
 975                                         viewCurrentFeed();
 976                                 } });
 977
 978                 }
 979         } catch (e) {
 980                 exception_error("adjustArticleScore", e);
 981         }
 982 } */
 983
 984 function rescoreCurrentFeed() {
 985
 986         var actid = getActiveFeedId();
 987
 988         if (activeFeedIsCat() || actid < 0 || tagsAreDisplayed()) {
 989                 alert(__("You can't rescore this kind of feed."));
 990                 return;
 991         }
 992
 993         if (!actid) {
 994                 alert(__("Please select some feed first."));
 995                 return;
 996         }
 997
 998         var fn = getFeedName(actid);
 999         var pr = __("Rescore articles in %s?").replace("%s", fn);
1000
1001         if (confirm(pr)) {
1002                 notify_progress("Rescoring articles...");
1003
1004                 var query = "?op=pref-feeds&subop=rescore&quiet=1&ids=" + actid;
1005
1006                 new Ajax.Request("backend.php", {
1007                         parameters: query,
1008                         onComplete: function(transport) {
1009                                 viewCurrentFeed();
1010                         } });
1011         }
1012 }
1013
1014 function hotkey_handler(e) {
1015
1016         try {
1017
1018                 var keycode;
1019                 var shift_key = false;
1020
1021                 var cmdline = $('cmdline');
1022                 var feedlist = $('feedList');
1023
1024                 try {
1025                         shift_key = e.shiftKey;
1026                 } catch (e) {
1027
1028                 }
1029
1030                 if (window.event) {
1031                         keycode = window.event.keyCode;
1032                 } else if (e) {
1033                         keycode = e.which;
1034                 }
1035
1036                 var keychar = String.fromCharCode(keycode);
1037
1038                 if (keycode == 27) { // escape
1039                         if (Element.visible("hotkey_help_overlay")) {
1040                                 Element.hide("hotkey_help_overlay");
1041                         }
1042                         hotkey_prefix = false;
1043                         closeInfoBox();
1044                 }
1045
1046                 if (!hotkeys_enabled) {
1047                         debug("hotkeys disabled");
1048                         return;
1049                 }
1050
1051                 if (keycode == 16) return; // ignore lone shift
1052
1053                 if ((keycode == 70 || keycode == 67 || keycode == 71)
1054                                 && !hotkey_prefix) {
1055
1056                         var date = new Date();
1057                         var ts = Math.round(date.getTime() / 1000);
1058
1059                         hotkey_prefix = keycode;
1060                         hotkey_prefix_pressed = ts;
1061
1062                         cmdline.innerHTML = keychar;
1063                         Element.show(cmdline);
1064
1065                         debug("KP: PREFIX=" + keycode + " CHAR=" + keychar + " TS=" + ts);
1066                         return true;
1067                 }
1068
1069                 if (Element.visible("hotkey_help_overlay")) {
1070                         Element.hide("hotkey_help_overlay");
1071                 }
1072
1073                 /* Global hotkeys */
1074
1075                 Element.hide(cmdline);
1076
1077                 if (!hotkey_prefix) {
1078
1079                         if (keycode == 68 && shift_key) { // d
1080                                 if (!Element.visible("debug_output")) {
1081                                         Element.show("debug_output");
1082                                         debug('debug mode activated');
1083                                 } else {
1084                                         Element.hide("debug_output");
1085                                 }
1086
1087                                 return;
1088                         }
1089
1090                         if ((keycode == 191 || keychar == '?') && shift_key) { // ?
1091                                 if (!Element.visible("hotkey_help_overlay")) {
1092                                         //Element.show("hotkey_help_overlay");
1093                                         Effect.Appear("hotkey_help_overlay", {duration : 0.3});
1094                                 } else {
1095                                         Element.hide("hotkey_help_overlay");
1096                                 }
1097                                 return false;
1098                         }
1099
1100                         if (keycode == 191 || keychar == '/') { // /
1101                                 displayDlg("search", getActiveFeedId() + ":" + activeFeedIsCat());
1102                                 return false;
1103                         }
1104
1105                         if (keycode == 82 && shift_key) { // R
1106                                 scheduleFeedUpdate(true);
1107                                 return;
1108                         }
1109
1110                         if (keycode == 74) { // j
1111                                 var feed = getActiveFeedId();
1112                                 var new_feed = getRelativeFeedId2(feed, activeFeedIsCat(), 'prev');
1113 //                              alert(feed + " IC: " + activeFeedIsCat() + " => " + new_feed);
1114                                 if (new_feed) {
1115                                         var is_cat = new_feed.match("CAT:");
1116                                         if (is_cat) {
1117                                                 new_feed = new_feed.replace("CAT:", "");
1118                                                 viewCategory(new_feed);
1119                                         } else {
1120                                                 viewfeed(new_feed, '', false);
1121                                         }
1122                                 }
1123                                 return;
1124                         }
1125
1126                         if (keycode == 75) { // k
1127                                 var feed = getActiveFeedId();
1128                                 var new_feed = getRelativeFeedId2(feed, activeFeedIsCat(), 'next');
1129 //                              alert(feed + " IC: " + activeFeedIsCat() + " => " + new_feed);
1130                                 if (new_feed) {
1131                                         var is_cat = new_feed.match("CAT:");
1132                                         if (is_cat == "CAT:") {
1133                                                 new_feed = new_feed.replace("CAT:", "");
1134                                                 viewCategory(new_feed);
1135                                         } else {
1136                                                 viewfeed(new_feed, '', false);
1137                                         }
1138                                 }
1139                                 return;
1140                         }
1141
1142                         if (shift_key && keycode == 40) { // shift-down
1143                                 catchupRelativeToArticle(1);
1144                                 return;
1145                         }
1146
1147                         if (shift_key && keycode == 38) { // shift-up
1148                                 catchupRelativeToArticle(0);
1149                                 return;
1150                         }
1151
1152                         if (shift_key && keycode == 78) { // N
1153                                 scrollArticle(50);
1154                                 return;
1155                         }
1156
1157                         if (shift_key && keycode == 80) { // P
1158                                 scrollArticle(-50);
1159                                 return;
1160                         }
1161
1162
1163                         if (keycode == 78 || keycode == 40) { // n, down
1164                                 if (typeof moveToPost != 'undefined') {
1165                                         moveToPost('next');
1166                                         return;
1167                                 }
1168                         }
1169
1170                         if (keycode == 80 || keycode == 38) { // p, up
1171                                 if (typeof moveToPost != 'undefined') {
1172                                         moveToPost('prev');
1173                                         return;
1174                                 }
1175                         }
1176
1177                         if (keycode == 83 && shift_key) { // S
1178                                 var id = getActiveArticleId();
1179                                 if (id) {
1180                                         togglePub(id);
1181                                 }
1182                                 return;
1183                         }
1184
1185                         if (keycode == 83) { // s
1186                                 var id = getActiveArticleId();
1187                                 if (id) {
1188                                         toggleMark(id);
1189                                 }
1190                                 return;
1191                         }
1192
1193
1194                         if (keycode == 85) { // u
1195                                 var id = getActiveArticleId();
1196                                 if (id) {
1197                                         toggleUnread(id);
1198                                 }
1199                                 return;
1200                         }
1201
1202                         if (keycode == 84 && shift_key) { // T
1203                                 var id = getActiveArticleId();
1204                                 if (id) {
1205                                         editArticleTags(id, getActiveFeedId(), isCdmMode());
1206                                         return;
1207                                 }
1208                         }
1209
1210                         if (keycode == 9) { // tab
1211                                 var id = getArticleUnderPointer();
1212                                 if (id) {
1213                                         var cb = $("RCHK-" + id);
1214
1215                                         if (cb) {
1216                                                 cb.checked = !cb.checked;
1217                                                 toggleSelectRowById(cb, "RROW-" + id);
1218                                                 return false;
1219                                         }
1220                                 }
1221                         }
1222
1223                         if (keycode == 79) { // o
1224                                 if (getActiveArticleId()) {
1225                                         openArticleInNewWindow(getActiveArticleId());
1226                                         return;
1227                                 }
1228                         }
1229
1230                         if (keycode == 81 && shift_key) { // Q
1231                                 if (typeof catchupAllFeeds != 'undefined') {
1232                                         catchupAllFeeds();
1233                                         return;
1234                                 }
1235                         }
1236
1237                         if (keycode == 88) { // x
1238                                 if (activeFeedIsCat()) {
1239                                         toggleCollapseCat(getActiveFeedId());
1240                                 }
1241                         }
1242                 }
1243
1244                 /* Prefix f */
1245
1246                 if (hotkey_prefix == 70) { // f
1247
1248                         hotkey_prefix = false;
1249
1250                         if (keycode == 81) { // q
1251                                 if (getActiveFeedId()) {
1252                                         catchupCurrentFeed();
1253                                         return;
1254                                 }
1255                         }
1256
1257                         if (keycode == 82) { // r
1258                                 if (getActiveFeedId()) {
1259                                         viewfeed(getActiveFeedId(), "ForceUpdate", activeFeedIsCat());
1260                                         return;
1261                                 }
1262                         }
1263
1264                         if (keycode == 65) { // a
1265                                 toggleDispRead();
1266                                 return false;
1267                         }
1268
1269                         if (keycode == 85 && shift_key) { // U
1270                                 scheduleFeedUpdate(true);
1271                                 return false;
1272                         }
1273
1274                         if (keycode == 85) { // u
1275                                 if (getActiveFeedId()) {
1276                                         viewfeed(getActiveFeedId(), "ForceUpdate");
1277                                         return false;
1278                                 }
1279                         }
1280
1281                         if (keycode == 69) { // e
1282                                 editFeedDlg(getActiveFeedId());
1283                                 return false;
1284                         }
1285
1286                         if (keycode == 83) { // s
1287                                 displayDlg("quickAddFeed");
1288                                 return false;
1289                         }
1290
1291                         if (keycode == 67 && shift_key) { // C
1292                                 if (typeof catchupAllFeeds != 'undefined') {
1293                                         catchupAllFeeds();
1294                                         return false;
1295                                 }
1296                         }
1297
1298                         if (keycode == 67) { // c
1299                                 if (getActiveFeedId()) {
1300                                         catchupCurrentFeed();
1301                                         return false;
1302                                 }
1303                         }
1304
1305                         if (keycode == 87) { // w
1306                                 feeds_sort_by_unread = !feeds_sort_by_unread;
1307                                 return resort_feedlist();
1308                         }
1309
1310                         if (keycode == 72) { // h
1311                                 hideReadHeadlines();
1312                                 return;
1313                         }
1314
1315                 }
1316
1317                 /* Prefix c */
1318
1319                 if (hotkey_prefix == 67) { // c
1320                         hotkey_prefix = false;
1321
1322                         if (keycode == 70) { // f
1323                                 displayDlg("quickAddFilter", getActiveFeedId());
1324                                 return false;
1325                         }
1326
1327                         if (keycode == 76) { // l
1328                                 addLabel();
1329                                 return false;
1330                         }
1331
1332                         if (keycode == 83) { // s
1333                                 if (typeof collapse_feedlist != 'undefined') {
1334                                         collapse_feedlist();
1335                                         return false;
1336                                 }
1337                         }
1338
1339                         if (keycode == 77) { // m
1340                                 feedlist_sortable_enabled = !feedlist_sortable_enabled;
1341                                 if (feedlist_sortable_enabled) {
1342                                         notify_info("Category reordering enabled");
1343                                         toggle_sortable_feedlist(true);
1344                                 } else {
1345                                         notify_info("Category reordering disabled");
1346                                         toggle_sortable_feedlist(false);
1347                                 }
1348                         }
1349
1350                         if (keycode == 78) { // n
1351                                 catchupRelativeToArticle(1);
1352                                 return;
1353                         }
1354
1355                         if (keycode == 80) { // p
1356                                 catchupRelativeToArticle(0);
1357                                 return;
1358                         }
1359
1360
1361                 }
1362
1363                 /* Prefix g */
1364
1365                 if (hotkey_prefix == 71) { // g
1366
1367                         hotkey_prefix = false;
1368
1369
1370                         if (keycode == 65) { // a
1371                                 viewfeed(-4);
1372                                 return false;
1373                         }
1374
1375                         if (keycode == 83) { // s
1376                                 viewfeed(-1);
1377                                 return false;
1378                         }
1379
1380                         if (keycode == 80 && shift_key) { // P
1381                                 gotoPreferences();
1382                                 return false;
1383                         }
1384
1385                         if (keycode == 80) { // p
1386                                 viewfeed(-2);
1387                                 return false;
1388                         }
1389
1390                         if (keycode == 70) { // f
1391                                 viewfeed(-3);
1392                                 return false;
1393                         }
1394
1395                         if (keycode == 84 && shift_key) { // T
1396                                 toggleTags();
1397                                 return false;
1398                         }
1399                 }
1400
1401                 /* Cmd */
1402
1403                 if (hotkey_prefix == 224 || hotkey_prefix == 91) { // f
1404                         hotkey_prefix = false;
1405                         return;
1406                 }
1407
1408                 if (hotkey_prefix) {
1409                         debug("KP: PREFIX=" + hotkey_prefix + " CODE=" + keycode + " CHAR=" + keychar);
1410                 } else {
1411                         debug("KP: CODE=" + keycode + " CHAR=" + keychar);
1412                 }
1413
1414
1415         } catch (e) {
1416                 exception_error("hotkey_handler", e);
1417         }
1418 }
1419
1420 function feedsSortByUnread() {
1421         return feeds_sort_by_unread;
1422 }
1423
1424 function addLabel() {
1425
1426         try {
1427
1428                 var caption = prompt(__("Please enter label caption:"), "");
1429
1430                 if (caption != undefined) {
1431
1432                         if (caption == "") {
1433                                 alert(__("Can't create label: missing caption."));
1434                                 return false;
1435                         }
1436
1437                         var query = "?op=pref-labels&subop=add&caption=" +
1438                                 param_escape(caption);
1439
1440                         notify_progress("Loading, please wait...", true);
1441
1442                         new Ajax.Request("backend.php", {
1443                                 parameters: query,
1444                                 onComplete: function(transport) {
1445                                         updateFeedList();
1446                         } });
1447
1448                 }
1449
1450         } catch (e) {
1451                 exception_error("addLabel", e);
1452         }
1453 }
1454
1455 function visitOfficialSite() {
1456         window.open("http://tt-rss.org/");
1457 }
1458
1459 function inPreferences() {
1460         return false;
1461 }