tt-rss.js

   1 var total_unread = 0;
   2 var first_run = true;
   3 var display_tags = false;
   4 var global_unread = -1;
   5 var active_title_text = "";
   6 var current_subtitle = "";
   7 var daemon_enabled = false;
   8 var daemon_refresh_only = false;
   9 //var _qfd_deleted_feed = 0;
  10 var firsttime_update = true;
  11 var _active_feed_id = 0;
  12 var _active_feed_is_cat = false;
  13 var number_of_feeds = 0;
  14 var sanity_check_done = false;
  15 var _hfd_scrolltop = 0;
  16 var hotkey_prefix = false;
  17 var init_params = new Object();
  18 var ver_offset = 0;
  19 var hor_offset = 0;
  20 var feeds_sort_by_unread = false;
  21 var feedlist_sortable_enabled = false;
  22
  23 function activeFeedIsCat() {
  24         return _active_feed_is_cat;
  25 }
  26
  27 function getActiveFeedId() {
  28 //      return getCookie("ttrss_vf_actfeed");
  29         try {
  30                 debug("gAFID: " + _active_feed_id);
  31                 return _active_feed_id;
  32         } catch (e) {
  33                 exception_error("getActiveFeedId", e);
  34         }
  35 }
  36
  37 function setActiveFeedId(id, is_cat) {
  38 //      return setCookie("ttrss_vf_actfeed", id);
  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 = document.getElementById("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 = document.getElementById("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 refetch_callback2(transport) {
 102         try {
 103
 104                 var date = new Date();
 105
 106                 parse_counters_reply(transport, true);
 107
 108                 debug("refetch_callback2: done");
 109
 110 /*              if (!daemon_enabled && !daemon_refresh_only) {
 111                         notify_info("All feeds updated.");
 112                         updateTitle("");
 113                 } else {
 114                         //notify("");
 115                 } */
 116         } catch (e) {
 117                 exception_error("refetch_callback", e);
 118                 updateTitle("");
 119         }
 120 }
 121
 122 function backend_sanity_check_callback(transport) {
 123
 124         try {
 125
 126                 if (sanity_check_done) {
 127                         fatalError(11, "Sanity check request received twice. This can indicate "+
 128                       "presence of Firebug or some other disrupting extension. "+
 129                                 "Please disable it and try again.");
 130                         return;
 131                 }
 132
 133                 if (!transport.responseXML) {
 134                         fatalError(3, "Sanity check: Received reply is not XML", transport.responseText);
 135                         return;
 136                 }
 137
 138                 var reply = transport.responseXML.firstChild.firstChild;
 139
 140                 if (!reply) {
 141                         fatalError(3, "Sanity check: invalid RPC reply", transport.responseText);
 142                         return;
 143                 }
 144
 145                 var error_code = reply.getAttribute("error-code");
 146
 147                 if (error_code && error_code != 0) {
 148                         return fatalError(error_code, reply.getAttribute("error-msg"));
 149                 }
 150
 151                 debug("sanity check ok");
 152
 153                 var params = reply.nextSibling;
 154
 155                 if (params) {
 156                         debug('reading init-params...');
 157                         var param = params.firstChild;
 158
 159                         while (param) {
 160                                 var k = param.getAttribute("key");
 161                                 var v = param.getAttribute("value");
 162                                 debug(k + " => " + v);
 163                                 init_params[k] = v;
 164                                 param = param.nextSibling;
 165                         }
 166                 }
 167
 168                 sanity_check_done = true;
 169
 170                 init_second_stage();
 171
 172         } catch (e) {
 173                 exception_error("backend_sanity_check_callback", e, transport);
 174         }
 175 }
 176
 177 function scheduleFeedUpdate(force) {
 178
 179         debug("in scheduleFeedUpdate");
 180
 181 /*      if (!daemon_enabled && !daemon_refresh_only) {
 182                 notify_progress("Updating feeds...", true);
 183         } */
 184
 185         var query_str = "backend.php?op=rpc&subop=";
 186
 187         if (force) {
 188                 query_str = query_str + "forceUpdateAllFeeds";
 189         } else {
 190                 query_str = query_str + "updateAllFeeds";
 191         }
 192
 193         var omode;
 194
 195         if (firsttime_update && !navigator.userAgent.match("Opera")) {
 196                 firsttime_update = false;
 197                 omode = "T";
 198         } else {
 199                 if (display_tags) {
 200                         omode = "tl";
 201                 } else {
 202                         omode = "flc";
 203                 }
 204         }
 205
 206         query_str = query_str + "&omode=" + omode;
 207         query_str = query_str + "&uctr=" + global_unread;
 208
 209         var date = new Date();
 210         var timestamp = Math.round(date.getTime() / 1000);
 211         query_str = query_str + "&ts=" + timestamp
 212
 213         debug("REFETCH query: " + query_str);
 214
 215         new Ajax.Request(query_str, {
 216                 onComplete: function(transport) {
 217                                 refetch_callback2(transport);
 218                         } });
 219 }
 220
 221 function updateFeedList(silent, fetch) {
 222
 223 //      if (silent != true) {
 224 //              notify("Loading feed list...");
 225 //      }
 226
 227         debug("<b>updateFeedList</b>");
 228
 229         var query_str = "backend.php?op=feeds";
 230
 231         if (display_tags) {
 232                 query_str = query_str + "&tags=1";
 233         }
 234
 235         if (getActiveFeedId() && !activeFeedIsCat()) {
 236                 query_str = query_str + "&actid=" + getActiveFeedId();
 237         }
 238
 239         var date = new Date();
 240         var timestamp = Math.round(date.getTime() / 1000);
 241         query_str = query_str + "&ts=" + timestamp
 242
 243         if (fetch) query_str = query_str + "&fetch=yes";
 244
 245 //      var feeds_frame = document.getElementById("feeds-frame");
 246 //      feeds_frame.src = query_str;
 247
 248         debug("updateFeedList Q=" + query_str);
 249
 250         new Ajax.Request(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(query_str, {
 270                         onComplete: function(transport) {
 271                                 feedlist_callback2(transport);
 272                         } });
 273
 274                 global_unread = 0;
 275                 updateTitle("");
 276         }
 277 }
 278
 279 function viewCurrentFeed(subop) {
 280
 281 //      if (getActiveFeedId()) {
 282         if (getActiveFeedId() != undefined) {
 283                 viewfeed(getActiveFeedId(), subop, activeFeedIsCat());
 284         } else {
 285                 disableContainerChildren("headlinesToolbar", false, document);
 286 //              viewfeed(-1, subop); // FIXME
 287         }
 288         return false; // block unneeded form submits
 289 }
 290
 291 function viewfeed(feed, subop) {
 292         var f = window.frames["feeds-frame"];
 293         f.viewfeed(feed, subop);
 294 }
 295
 296 function timeout() {
 297         if (getInitParam("bw_limit") == "1") return;
 298
 299         scheduleFeedUpdate(false);
 300
 301         var refresh_time = getInitParam("feeds_frame_refresh");
 302
 303         if (!refresh_time) refresh_time = 600;
 304
 305         setTimeout("timeout()", refresh_time*1000);
 306 }
 307
 308 function resetSearch() {
 309         var searchbox = document.getElementById("searchbox")
 310
 311         if (searchbox.value != "" && getActiveFeedId()) {
 312                 searchbox.value = "";
 313                 viewfeed(getActiveFeedId(), "");
 314         }
 315 }
 316
 317 function searchCancel() {
 318         closeInfoBox(true);
 319 }
 320
 321 function search() {
 322         closeInfoBox();
 323         viewCurrentFeed(0, "");
 324 }
 325
 326 // if argument is undefined, current subtitle is not updated
 327 // use blank string to clear subtitle
 328 function updateTitle(s) {
 329         var tmp = "Tiny Tiny RSS";
 330
 331         if (s != undefined) {
 332                 current_subtitle = s;
 333         }
 334
 335         if (global_unread > 0) {
 336                 tmp = tmp + " (" + global_unread + ")";
 337         }
 338
 339         if (current_subtitle) {
 340                 tmp = tmp + " - " + current_subtitle;
 341         }
 342
 343         if (active_title_text.length > 0) {
 344                 tmp = tmp + " > " + active_title_text;
 345         }
 346
 347         document.title = tmp;
 348 }
 349
 350 function genericSanityCheck() {
 351
 352 //      if (!Ajax.getTransport()) fatalError(1);
 353
 354         setCookie("ttrss_vf_test", "TEST");
 355
 356         if (getCookie("ttrss_vf_test") != "TEST") {
 357                 fatalError(2);
 358         }
 359
 360         return true;
 361 }
 362
 363 function init() {
 364
 365         try {
 366
 367                 // this whole shebang is based on http://www.birnamdesigns.com/misc/busted2.html
 368
 369                 if (arguments.callee.done) return;
 370                 arguments.callee.done = true;
 371
 372                 disableContainerChildren("headlinesToolbar", true);
 373
 374                 Form.disable("main_toolbar_form");
 375
 376                 if (!genericSanityCheck())
 377                         return;
 378
 379                 if (getURLParam('debug')) {
 380                         Element.show("debug_output");
 381                         debug('debug mode activated');
 382                 }
 383
 384                 var params = "&ua=" + param_escape(navigator.userAgent);
 385
 386                 loading_set_progress(30);
 387
 388                 new Ajax.Request("backend.php?op=rpc&subop=sanityCheck" + params,       {
 389                         onComplete: function(transport) {
 390                                         backend_sanity_check_callback(transport);
 391                                 } });
 392
 393         } catch (e) {
 394                 exception_error("init", e);
 395         }
 396 }
 397
 398 function resize_headlines(delta_x, delta_y) {
 399
 400         try {
 401
 402                 debug("resize_headlines: " + delta_x + ":" + delta_y);
 403
 404                 var h_frame = document.getElementById("headlines-frame");
 405                 var c_frame = document.getElementById("content-frame");
 406                 var f_frame = document.getElementById("footer");
 407                 var feeds_frame = document.getElementById("feeds-holder");
 408                 var resize_grab = document.getElementById("resize-grabber");
 409                 var resize_handle = document.getElementById("resize-handle");
 410
 411                 if (!c_frame || !h_frame) return;
 412
 413                 if (feeds_frame && getInitParam("theme") == "compat") {
 414                                 feeds_frame.style.bottom = f_frame.offsetHeight + "px";
 415                 }
 416
 417                 if (getInitParam("theme") == "3pane") {
 418
 419                         if (delta_x != undefined) {
 420                                 if (c_frame.offsetLeft - delta_x > feeds_frame.offsetWidth + feeds_frame.offsetLeft + 100 && c_frame.offsetWidth + delta_x > 100) {
 421                                         hor_offset = hor_offset + delta_x;
 422                                 }
 423                         }
 424
 425                         debug("resize_headlines: HOR-mode: " + hor_offset);
 426
 427                         c_frame.style.width = (400 + hor_offset) + "px";
 428                         h_frame.style.right = c_frame.offsetWidth - 1 + "px";
 429
 430                         resize_grab.style.top = (h_frame.offsetTop + h_frame.offsetHeight - 60) + "px";
 431                         resize_grab.style.left = (h_frame.offsetLeft + h_frame.offsetWidth -
 432                                 4) + "px";
 433                         resize_grab.style.display = "block";
 434
 435                         resize_handle.src = "themes/3pane/images/resize_handle_vert.png";
 436                         resize_handle.style.paddingTop = (resize_grab.offsetHeight / 2 - 7) + "px";
 437
 438                 } else {
 439
 440                         if (delta_y != undefined) {
 441                                 if (c_frame.offsetHeight + delta_y > 100 && h_frame.offsetHeight - delta_y > 100) {
 442                                         ver_offset = ver_offset + delta_y;
 443                                 }
 444                         }
 445
 446                         debug("resize_headlines: VER-mode: " + ver_offset);
 447
 448                         h_frame.style.height = (300 - ver_offset) + "px";
 449
 450                         c_frame.style.top = (h_frame.offsetTop + h_frame.offsetHeight + 0) + "px";
 451                         h_frame.style.height = h_frame.offsetHeight + "px";
 452
 453                         var theme_c = 0;
 454
 455                         if (getInitParam("theme") == "graycube") {
 456                                 theme_c = 1;
 457                         }
 458
 459                         if (getInitParam("theme") == "graycube" || getInitParam("theme") == "compat") {
 460                                 resize_handle.src = "themes/graycube/images/resize_handle_horiz.png";
 461                         }
 462
 463 /*                      resize_grab.style.top = (h_frame.offsetTop + h_frame.offsetHeight -
 464                                 4 - theme_c) + "px";
 465                         resize_grab.style.display = "block"; */
 466
 467                 }
 468
 469                 if (getInitParam("cookie_lifetime") != 0) {
 470                         setCookie("ttrss_offset_ver", ver_offset,
 471                                 getInitParam("cookie_lifetime"));
 472                         setCookie("ttrss_offset_hor", hor_offset,
 473                                 getInitParam("cookie_lifetime"));
 474                 } else {
 475                         setCookie("ttrss_offset_ver", ver_offset);
 476                         setCookie("ttrss_offset_hor", hor_offset);
 477                 }
 478
 479         } catch (e) {
 480                 exception_error("resize_headlines", e);
 481         }
 482
 483 }
 484
 485 function init_second_stage() {
 486
 487         try {
 488
 489                 delCookie("ttrss_vf_test");
 490
 491 //              document.onresize = resize_headlines;
 492
 493                 var toolbar = document.forms["main_toolbar_form"];
 494
 495                 dropboxSelect(toolbar.view_mode, getInitParam("default_view_mode"));
 496                 dropboxSelect(toolbar.limit, getInitParam("default_view_limit"));
 497                 dropboxSelect(toolbar.order_by, getInitParam("default_view_order_by"));
 498
 499                 daemon_enabled = getInitParam("daemon_enabled") == 1;
 500                 daemon_refresh_only = getInitParam("daemon_refresh_only") == 1;
 501                 feeds_sort_by_unread = getInitParam("feeds_sort_by_unread") == 1;
 502
 503                 setTimeout('updateFeedList(false, false)', 50);
 504
 505                 debug("second stage ok");
 506
 507                 loading_set_progress(60);
 508
 509                 ver_offset = parseInt(getCookie("ttrss_offset_ver"));
 510                 hor_offset = parseInt(getCookie("ttrss_offset_hor"));
 511
 512                 debug("got offsets from cookies: ver " + ver_offset + " hor " + hor_offset);
 513
 514                 /* fuck IE */
 515
 516                 if (isNaN(hor_offset)) hor_offset = 0;
 517                 if (isNaN(ver_offset)) ver_offset = 0;
 518
 519                 debug("offsets from cookies [x:y]: " + hor_offset + ":" + ver_offset);
 520
 521                 resize_headlines();
 522
 523         } catch (e) {
 524                 exception_error("init_second_stage", e);
 525         }
 526 }
 527
 528 function quickMenuChange() {
 529         var chooser = document.getElementById("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                         return;
 551                 }
 552
 553                 if (opid == "qmcEditFeed") {
 554                         editFeedDlg(getActiveFeedId());
 555                 }
 556
 557                 if (opid == "qmcRemoveFeed") {
 558                         var actid = getActiveFeedId();
 559
 560                         if (activeFeedIsCat()) {
 561                                 alert(__("You can't unsubscribe from the category."));
 562                                 return;
 563                         }
 564
 565                         if (!actid) {
 566                                 alert(__("Please select some feed first."));
 567                                 return;
 568                         }
 569
 570                         var fn = getFeedName(actid);
 571
 572                         var pr = __("Unsubscribe from %s?").replace("%s", fn);
 573
 574                         if (confirm(pr)) {
 575                                 unsubscribeFeed(actid);
 576                         }
 577
 578                         return;
 579                 }
 580
 581                 if (opid == "qmcClearFeed") {
 582                         var actid = getActiveFeedId();
 583
 584                         if (!actid) {
 585                                 alert(__("Please select some feed first."));
 586                                 return;
 587                         }
 588
 589                         if (activeFeedIsCat() || actid < 0) {
 590                                 alert(__("You can't clear this type of feed."));
 591                                 return;
 592                         }
 593
 594                         var fn = getFeedName(actid);
 595
 596                         var pr = __("Erase all non-starred articles in %s?").replace("%s", fn);
 597
 598                         if (confirm(pr)) {
 599                                 clearFeedArticles(actid);
 600                         }
 601
 602                         return;
 603                 }
 604
 605
 606                 if (opid == "qmcUpdateFeeds") {
 607                         scheduleFeedUpdate(true);
 608                         return;
 609                 }
 610
 611                 if (opid == "qmcCatchupAll") {
 612                         catchupAllFeeds();
 613                         return;
 614                 }
 615
 616                 if (opid == "qmcShowOnlyUnread") {
 617                         toggleDispRead();
 618                         return;
 619                 }
 620
 621                 if (opid == "qmcAddFilter") {
 622                         displayDlg("quickAddFilter", getActiveFeedId());
 623                 }
 624
 625                 if (opid == "qmcAddLabel") {
 626                         addLabel();
 627                 }
 628
 629                 if (opid == "qmcRescoreFeed") {
 630                         rescoreCurrentFeed();
 631                 }
 632
 633                 if (opid == "qmcHKhelp") {
 634                         //Element.show("hotkey_help_overlay");
 635                         Effect.Appear("hotkey_help_overlay", {duration : 0.3});
 636                 }
 637
 638                 if (opid == "qmcResetUI") {
 639                         hor_offset = 0;
 640                         ver_offset = 0;
 641                         resize_headlines();
 642                 }
 643
 644                 if (opid == "qmcResetCats") {
 645
 646                         if (confirm(__("Reset category order?"))) {
 647
 648                                 var query = "backend.php?op=feeds&subop=catsortreset";
 649
 650                                 notify_progress("Loading, please wait...", true);
 651
 652                                 new Ajax.Request(query, {
 653                                         onComplete: function(transport) {
 654                                                 window.setTimeout('updateFeedList(false, false)', 50);
 655                                         } });
 656                         }
 657                 }
 658
 659         } catch (e) {
 660                 exception_error("quickMenuGo", e);
 661         }
 662 }
 663
 664 function unsubscribeFeed(feed_id, title) {
 665
 666
 667         var msg = __("Unsubscribe from %s?").replace("%s", title);
 668
 669         if (title == undefined || confirm(msg)) {
 670                 notify_progress("Removing feed...");
 671
 672                 var query = "backend.php?op=pref-feeds&quiet=1&subop=remove&ids=" + feed_id;
 673
 674                 new Ajax.Request(query, {
 675                         onComplete: function(transport) {
 676                                         dlg_frefresh_callback(transport, feed_id);
 677                                 } });
 678         }
 679
 680         return false;
 681 }
 682
 683
 684 function updateFeedTitle(t) {
 685         active_title_text = t;
 686         updateTitle();
 687 }
 688
 689 function toggleDispRead() {
 690         try {
 691
 692                 var hide_read_feeds = (getInitParam("hide_read_feeds") == "1");
 693
 694                 hide_read_feeds = !hide_read_feeds;
 695
 696                 debug("toggle_disp_read => " + hide_read_feeds);
 697
 698                 hideOrShowFeeds(hide_read_feeds);
 699
 700                 storeInitParam("hide_read_feeds", hide_read_feeds, true);
 701
 702         } catch (e) {
 703                 exception_error("toggleDispRead", e);
 704         }
 705 }
 706
 707 function parse_runtime_info(elem) {
 708         if (!elem) {
 709                 debug("parse_runtime_info: elem is null, aborting");
 710                 return;
 711         }
 712
 713         var param = elem.firstChild;
 714
 715         debug("parse_runtime_info: " + param);
 716
 717         while (param) {
 718                 var k = param.getAttribute("key");
 719                 var v = param.getAttribute("value");
 720
 721                 debug("RI: " + k + " => " + v);
 722
 723                 if (k == "new_version_available") {
 724                         var icon = document.getElementById("newVersionIcon");
 725                         if (icon) {
 726                                 if (v == "1") {
 727                                         icon.style.display = "inline";
 728                                 } else {
 729                                         icon.style.display = "none";
 730                                 }
 731                         }
 732                 }
 733
 734                 var error_flag;
 735
 736                 if (k == "daemon_is_running" && v != 1) {
 737                         notify_error("<span onclick=\"javascript:explainError(1)\">Update daemon is not running.</span>", true);
 738                         error_flag = true;
 739                 }
 740
 741                 if (k == "daemon_stamp_ok" && v != 1) {
 742                         notify_error("<span onclick=\"javascript:explainError(3)\">Update daemon is not updating feeds.</span>", true);
 743                         error_flag = true;
 744                 }
 745
 746                 if (!error_flag) {
 747                         notify('');
 748                 }
 749
 750 /*              var w = document.getElementById("noDaemonWarning");
 751
 752                 if (w) {
 753                         if (k == "daemon_is_running" && v != 1) {
 754                                 w.style.display = "block";
 755                         } else {
 756                                 w.style.display = "none";
 757                         }
 758                 } */
 759                 param = param.nextSibling;
 760         }
 761 }
 762
 763 function catchupCurrentFeed() {
 764
 765         var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
 766
 767         var str = __("Mark all articles in %s as read?").replace("%s", fn);
 768
 769         if (getInitParam("confirm_feed_catchup") != 1 || confirm(str)) {
 770                 return viewCurrentFeed('MarkAllRead')
 771         }
 772 }
 773
 774 function catchupFeedInGroup(id) {
 775
 776         try {
 777
 778                 var title = getFeedName(id);
 779
 780                 var str = __("Mark all articles in %s as read?").replace("%s", title);
 781
 782                 if (getInitParam("confirm_feed_catchup") != 1 || confirm(str)) {
 783                         return viewCurrentFeed('MarkAllReadGR:' + id)
 784                 }
 785
 786         } catch (e) {
 787                 exception_error("catchupFeedInGroup", e);
 788         }
 789 }
 790
 791 function editFeedDlg(feed) {
 792         try {
 793
 794                 if (!feed) {
 795                         alert(__("Please select some feed first."));
 796                         return;
 797                 }
 798
 799                 if ((feed <= 0) || activeFeedIsCat() || tagsAreDisplayed()) {
 800                         alert(__("You can't edit this kind of feed."));
 801                         return;
 802                 }
 803
 804                 var query = "";
 805
 806                 if (feed > 0) {
 807                         query = "backend.php?op=pref-feeds&subop=editfeed&id=" +        param_escape(feed);
 808                 } else {
 809                         query = "backend.php?op=pref-labels&subop=edit&id=" +   param_escape(-feed-11);
 810                 }
 811
 812                 disableHotkeys();
 813
 814                 new Ajax.Request(query, {
 815                         onComplete: function(transport) {
 816                                 infobox_callback2(transport);
 817                         } });
 818
 819         } catch (e) {
 820                 exception_error("editFeedDlg", e);
 821         }
 822 }
 823
 824 /* this functions duplicate those of prefs.js feed editor, with
 825         some differences because there is no feedlist */
 826
 827 function feedEditCancel() {
 828         closeInfoBox();
 829         return false;
 830 }
 831
 832 function feedEditSave() {
 833
 834         try {
 835
 836                 // FIXME: add parameter validation
 837
 838                 var query = Form.serialize("edit_feed_form");
 839
 840                 notify_progress("Saving feed...");
 841
 842                 new Ajax.Request("backend.php", {
 843                         parameters: query,
 844                         onComplete: function(transport) {
 845                                 dlg_frefresh_callback(transport);
 846                         } });
 847
 848
 849                 closeInfoBox();
 850
 851                 return false;
 852
 853         } catch (e) {
 854                 exception_error("feedEditSave (main)", e);
 855         }
 856 }
 857
 858 function clearFeedArticles(feed_id) {
 859
 860         notify_progress("Clearing feed...");
 861
 862         var query = "backend.php?op=pref-feeds&quiet=1&subop=clear&id=" + feed_id;
 863
 864         new Ajax.Request(query, {
 865                 onComplete: function(transport) {
 866                                 dlg_frefresh_callback(transport, feed_id);
 867                         } });
 868
 869         return false;
 870 }
 871
 872 function collapse_feedlist() {
 873         try {
 874                 debug("toggle_feedlist");
 875
 876                 var theme = getInitParam("theme");
 877                 if (theme != "" && theme != "compact" && theme != "graycube" &&
 878                                 theme != "compat") return;
 879
 880                 var fl = document.getElementById("feeds-holder");
 881                 var fh = document.getElementById("headlines-frame");
 882                 var fc = document.getElementById("content-frame");
 883                 var ft = document.getElementById("toolbar");
 884                 var ff = document.getElementById("footer");
 885                 var fhdr = document.getElementById("header");
 886                 var fbtn = document.getElementById("collapse_feeds_btn");
 887
 888                 if (!Element.visible(fl)) {
 889                         Element.show(fl);
 890                         fbtn.value = "<<";
 891
 892                         if (theme != "graycube") {
 893
 894                                 fh.style.left = fl.offsetWidth + "px";
 895                                 ft.style.left = fl.offsetWidth + "px";
 896                                 if (fc) fc.style.left = fl.offsetWidth + "px";
 897                                 if (ff && theme != "compat") ff.style.left = (fl.offsetWidth-1) + "px";
 898
 899                                 if (theme == "compact") fhdr.style.left = (fl.offsetWidth + 10) + "px";
 900                         } else {
 901                                 fh.style.left = fl.offsetWidth + 40 + "px";
 902                                 ft.style.left = fl.offsetWidth + 40 +"px";
 903                                 if (fc) fc.style.left = fl.offsetWidth + 40 + "px";
 904                         }
 905
 906                         setCookie("ttrss_vf_fclps", "0");
 907
 908                 } else {
 909                         Element.hide(fl);
 910                         fbtn.value = ">>";
 911
 912                         if (theme != "graycube") {
 913
 914                                 fh.style.left = "0px";
 915                                 ft.style.left = "0px";
 916                                 if (fc) fc.style.left = "0px";
 917                                 if (ff) ff.style.left = "0px";
 918
 919                                 if (theme == "compact") fhdr.style.left = "10px";
 920
 921                         } else {
 922                                 fh.style.left = "20px";
 923                                 ft.style.left = "20px";
 924                                 if (fc) fc.style.left = "20px";
 925
 926                         }
 927
 928                         setCookie("ttrss_vf_fclps", "1");
 929                 }
 930         } catch (e) {
 931                 exception_error("toggle_feedlist", e);
 932         }
 933 }
 934
 935 function viewModeChanged() {
 936         cache_empty();
 937         return viewCurrentFeed(0, '')
 938 }
 939
 940 function viewLimitChanged() {
 941         cache_empty();
 942         return viewCurrentFeed(0, '')
 943 }
 944
 945 /* function adjustArticleScore(id, score) {
 946         try {
 947
 948                 var pr = prompt(__("Assign score to article:"), score);
 949
 950                 if (pr != undefined) {
 951                         var query = "backend.php?op=rpc&subop=setScore&id=" + id + "&score=" + pr;
 952
 953                         new Ajax.Request(query, {
 954                         onComplete: function(transport) {
 955                                         viewCurrentFeed();
 956                                 } });
 957
 958                 }
 959         } catch (e) {
 960                 exception_error("adjustArticleScore", e);
 961         }
 962 } */
 963
 964 function rescoreCurrentFeed() {
 965
 966         var actid = getActiveFeedId();
 967
 968         if (activeFeedIsCat() || actid < 0 || tagsAreDisplayed()) {
 969                 alert(__("You can't rescore this kind of feed."));
 970                 return;
 971         }
 972
 973         if (!actid) {
 974                 alert(__("Please select some feed first."));
 975                 return;
 976         }
 977
 978         var fn = getFeedName(actid);
 979         var pr = __("Rescore articles in %s?").replace("%s", fn);
 980
 981         if (confirm(pr)) {
 982                 notify_progress("Rescoring articles...");
 983
 984                 var query = "backend.php?op=pref-feeds&subop=rescore&quiet=1&ids=" + actid;
 985
 986                 new Ajax.Request(query, {
 987                 onComplete: function(transport) {
 988                         viewCurrentFeed();
 989                 } });
 990         }
 991 }
 992
 993 function hotkey_handler(e) {
 994
 995         try {
 996
 997                 var keycode;
 998                 var shift_key = false;
 999
1000                 var feedlist = document.getElementById('feedList');
1001
1002                 try {
1003                         shift_key = e.shiftKey;
1004                 } catch (e) {
1005
1006                 }
1007
1008                 if (window.event) {
1009                         keycode = window.event.keyCode;
1010                 } else if (e) {
1011                         keycode = e.which;
1012                 }
1013
1014                 var keychar = String.fromCharCode(keycode);
1015
1016                 if (keycode == 27) { // escape
1017                         if (Element.visible("hotkey_help_overlay")) {
1018                                 Element.hide("hotkey_help_overlay");
1019                         }
1020                         hotkey_prefix = false;
1021                         closeInfoBox();
1022                 }
1023
1024                 if (!hotkeys_enabled) {
1025                         debug("hotkeys disabled");
1026                         return;
1027                 }
1028
1029                 if (keycode == 16) return; // ignore lone shift
1030
1031                 if ((keycode == 70 || keycode == 67 || keycode == 71)
1032                                 && !hotkey_prefix) {
1033
1034                         hotkey_prefix = keycode;
1035                         debug("KP: PREFIX=" + keycode + " CHAR=" + keychar);
1036                         return true;
1037                 }
1038
1039                 if (Element.visible("hotkey_help_overlay")) {
1040                         Element.hide("hotkey_help_overlay");
1041                 }
1042
1043                 /* Global hotkeys */
1044
1045                 if (!hotkey_prefix) {
1046
1047                         if (keycode == 68 && shift_key) { // d
1048                                 if (!Element.visible("debug_output")) {
1049                                         Element.show("debug_output");
1050                                         debug('debug mode activated');
1051                                 } else {
1052                                         Element.hide("debug_output");
1053                                 }
1054
1055                                 return;
1056                         }
1057
1058                         if ((keycode == 191 || keychar == '?') && shift_key) { // ?
1059                                 if (!Element.visible("hotkey_help_overlay")) {
1060                                         //Element.show("hotkey_help_overlay");
1061                                         Effect.Appear("hotkey_help_overlay", {duration : 0.3});
1062                                 } else {
1063                                         Element.hide("hotkey_help_overlay");
1064                                 }
1065                                 return false;
1066                         }
1067
1068                         if (keycode == 191 || keychar == '/') { // /
1069                                 displayDlg("search", getActiveFeedId() + ":" + activeFeedIsCat());
1070                                 return false;
1071                         }
1072
1073                         if (keycode == 82 && shift_key) { // R
1074                                 scheduleFeedUpdate(true);
1075                                 return;
1076                         }
1077
1078                         if (keycode == 74) { // j
1079                                 var feed = getActiveFeedId();
1080                                 var new_feed = getRelativeFeedId2(feed, activeFeedIsCat(), 'prev');
1081 //                              alert(feed + " IC: " + activeFeedIsCat() + " => " + new_feed);
1082                                 if (new_feed) {
1083                                         var is_cat = new_feed.match("CAT:");
1084                                         if (is_cat) {
1085                                                 new_feed = new_feed.replace("CAT:", "");
1086                                                 viewCategory(new_feed);
1087                                         } else {
1088                                                 viewfeed(new_feed, '', false);
1089                                         }
1090                                 }
1091                                 return;
1092                         }
1093
1094                         if (keycode == 75) { // k
1095                                 var feed = getActiveFeedId();
1096                                 var new_feed = getRelativeFeedId2(feed, activeFeedIsCat(), 'next');
1097 //                              alert(feed + " IC: " + activeFeedIsCat() + " => " + new_feed);
1098                                 if (new_feed) {
1099                                         var is_cat = new_feed.match("CAT:");
1100                                         if (is_cat == "CAT:") {
1101                                                 new_feed = new_feed.replace("CAT:", "");
1102                                                 viewCategory(new_feed);
1103                                         } else {
1104                                                 viewfeed(new_feed, '', false);
1105                                         }
1106                                 }
1107                                 return;
1108                         }
1109
1110                         if (shift_key && keycode == 40) { // shift-down
1111                                 catchupRelativeToArticle(1);
1112                                 return;
1113                         }
1114
1115                         if (shift_key && keycode == 38) { // shift-up
1116                                 catchupRelativeToArticle(0);
1117                                 return;
1118                         }
1119
1120                         if (shift_key && keycode == 78) { // N
1121                                 scrollArticle(50);
1122                                 return;
1123                         }
1124
1125                         if (shift_key && keycode == 80) { // P
1126                                 scrollArticle(-50);
1127                                 return;
1128                         }
1129
1130
1131                         if (keycode == 78 || keycode == 40) { // n, down
1132                                 if (typeof moveToPost != 'undefined') {
1133                                         moveToPost('next');
1134                                         return;
1135                                 }
1136                         }
1137
1138                         if (keycode == 80 || keycode == 38) { // p, up
1139                                 if (typeof moveToPost != 'undefined') {
1140                                         moveToPost('prev');
1141                                         return;
1142                                 }
1143                         }
1144
1145                         if (keycode == 83 && shift_key) { // S
1146                                 var id = getActiveArticleId();
1147                                 if (id) {
1148                                         togglePub(id);
1149                                 }
1150                                 return;
1151                         }
1152
1153                         if (keycode == 83) { // s
1154                                 var id = getActiveArticleId();
1155                                 if (id) {
1156                                         toggleMark(id);
1157                                 }
1158                                 return;
1159                         }
1160
1161
1162                         if (keycode == 85) { // u
1163                                 var id = getActiveArticleId();
1164                                 if (id) {
1165                                         toggleUnread(id);
1166                                 }
1167                                 return;
1168                         }
1169
1170                         if (keycode == 84 && shift_key) { // T
1171                                 var id = getActiveArticleId();
1172                                 if (id) {
1173                                         editArticleTags(id, getActiveFeedId(), isCdmMode());
1174                                         return;
1175                                 }
1176                         }
1177
1178                         if (keycode == 9) { // tab
1179                                 var id = getArticleUnderPointer();
1180                                 if (id) {
1181                                         var cb = document.getElementById("RCHK-" + id);
1182
1183                                         if (cb) {
1184                                                 cb.checked = !cb.checked;
1185                                                 toggleSelectRowById(cb, "RROW-" + id);
1186                                                 return false;
1187                                         }
1188                                 }
1189                         }
1190
1191                         if (keycode == 79) { // o
1192                                 if (getActiveArticleId()) {
1193                                         openArticleInNewWindow(getActiveArticleId());
1194                                         return;
1195                                 }
1196                         }
1197
1198                         if (keycode == 81 && shift_key) { // Q
1199                                 if (typeof catchupAllFeeds != 'undefined') {
1200                                         catchupAllFeeds();
1201                                         return;
1202                                 }
1203                         }
1204
1205                         if (keycode == 88) { // x
1206                                 if (activeFeedIsCat()) {
1207                                         toggleCollapseCat(getActiveFeedId());
1208                                 }
1209                         }
1210                 }
1211
1212                 /* Prefix f */
1213
1214                 if (hotkey_prefix == 70) { // f
1215
1216                         hotkey_prefix = false;
1217
1218                         if (keycode == 81) { // q
1219                                 if (getActiveFeedId()) {
1220                                         catchupCurrentFeed();
1221                                         return;
1222                                 }
1223                         }
1224
1225                         if (keycode == 82) { // r
1226                                 if (getActiveFeedId()) {
1227                                         viewfeed(getActiveFeedId(), "ForceUpdate", activeFeedIsCat());
1228                                         return;
1229                                 }
1230                         }
1231
1232                         if (keycode == 65) { // a
1233                                 toggleDispRead();
1234                                 return false;
1235                         }
1236
1237                         if (keycode == 85 && shift_key) { // U
1238                                 scheduleFeedUpdate(true);
1239                                 return false;
1240                         }
1241
1242                         if (keycode == 85) { // u
1243                                 if (getActiveFeedId()) {
1244                                         viewfeed(getActiveFeedId(), "ForceUpdate");
1245                                         return false;
1246                                 }
1247                         }
1248
1249                         if (keycode == 69) { // e
1250                                 editFeedDlg(getActiveFeedId());
1251                                 return false;
1252                         }
1253
1254                         if (keycode == 83) { // s
1255                                 displayDlg("quickAddFeed");
1256                                 return false;
1257                         }
1258
1259                         if (keycode == 67 && shift_key) { // C
1260                                 if (typeof catchupAllFeeds != 'undefined') {
1261                                         catchupAllFeeds();
1262                                         return false;
1263                                 }
1264                         }
1265
1266                         if (keycode == 67) { // c
1267                                 if (getActiveFeedId()) {
1268                                         catchupCurrentFeed();
1269                                         return false;
1270                                 }
1271                         }
1272
1273                         if (keycode == 87) { // w
1274                                 feeds_sort_by_unread = !feeds_sort_by_unread;
1275                                 return resort_feedlist();
1276                         }
1277
1278                         if (keycode == 72) { // h
1279                                 hideReadHeadlines();
1280                                 return;
1281                         }
1282
1283                 }
1284
1285                 /* Prefix c */
1286
1287                 if (hotkey_prefix == 67) { // c
1288                         hotkey_prefix = false;
1289
1290                         if (keycode == 70) { // f
1291                                 displayDlg("quickAddFilter", getActiveFeedId());
1292                                 return false;
1293                         }
1294
1295                         if (keycode == 76) { // l
1296                                 addLabel();
1297                                 return false;
1298                         }
1299
1300                         if (keycode == 83) { // s
1301                                 if (typeof collapse_feedlist != 'undefined') {
1302                                         collapse_feedlist();
1303                                         return false;
1304                                 }
1305                         }
1306
1307                         if (keycode == 77) { // m
1308                                 feedlist_sortable_enabled = !feedlist_sortable_enabled;
1309                                 if (feedlist_sortable_enabled) {
1310                                         notify_info("Category reordering enabled");
1311                                         toggle_sortable_feedlist(true);
1312                                 } else {
1313                                         notify_info("Category reordering disabled");
1314                                         toggle_sortable_feedlist(false);
1315                                 }
1316                         }
1317
1318                         if (keycode == 78) { // n
1319                                 catchupRelativeToArticle(1);
1320                                 return;
1321                         }
1322
1323                         if (keycode == 80) { // p
1324                                 catchupRelativeToArticle(0);
1325                                 return;
1326                         }
1327
1328
1329                 }
1330
1331                 /* Prefix g */
1332
1333                 if (hotkey_prefix == 71) { // g
1334
1335                         hotkey_prefix = false;
1336
1337
1338                         if (keycode == 65) { // a
1339                                 viewfeed(-4);
1340                                 return false;
1341                         }
1342
1343                         if (keycode == 83) { // s
1344                                 viewfeed(-1);
1345                                 return false;
1346                         }
1347
1348                         if (keycode == 80 && shift_key) { // P
1349                                 gotoPreferences();
1350                                 return false;
1351                         }
1352
1353                         if (keycode == 80) { // p
1354                                 viewfeed(-2);
1355                                 return false;
1356                         }
1357
1358                         if (keycode == 70) { // f
1359                                 viewfeed(-3);
1360                                 return false;
1361                         }
1362
1363                         if (keycode == 84 && shift_key) { // T
1364                                 toggleTags();
1365                                 return false;
1366                         }
1367                 }
1368
1369                 /* Cmd */
1370
1371                 if (hotkey_prefix == 224 || hotkey_prefix == 91) { // f
1372                         hotkey_prefix = false;
1373                         return;
1374                 }
1375
1376                 if (hotkey_prefix) {
1377                         debug("KP: PREFIX=" + hotkey_prefix + " CODE=" + keycode + " CHAR=" + keychar);
1378                 } else {
1379                         debug("KP: CODE=" + keycode + " CHAR=" + keychar);
1380                 }
1381
1382
1383         } catch (e) {
1384                 exception_error("hotkey_handler", e);
1385         }
1386 }
1387
1388 function feedsSortByUnread() {
1389         return feeds_sort_by_unread;
1390 }
1391
1392 function addLabel() {
1393
1394         try {
1395
1396                 var caption = prompt(__("Please enter label caption:"), "");
1397
1398                 if (caption != undefined) {
1399
1400                         if (caption == "") {
1401                                 alert(__("Can't create label: missing caption."));
1402                                 return false;
1403                         }
1404
1405                         var query = "backend.php?op=pref-labels&subop=add&caption=" +
1406                                 param_escape(caption);
1407
1408                         notify_progress("Loading, please wait...", true);
1409
1410                         new Ajax.Request(query, {
1411                                 onComplete: function(transport) {
1412                                         updateFeedList();
1413                         } });
1414
1415                 }
1416
1417         } catch (e) {
1418                 exception_error("addLabel", e);
1419         }
1420 }
1421
1422 function visitOfficialSite() {
1423         window.open("http://tt-rss.org/");
1424 }
1425
1426 function browseFeeds(limit) {
1427
1428         try {
1429
1430                 var query = "backend.php?op=pref-feeds&subop=browse";
1431
1432                 notify_progress("Loading, please wait...", true);
1433
1434                 new Ajax.Request(query, {
1435                         onComplete: function(transport) {
1436                                 infobox_callback2(transport);
1437                         } });
1438
1439                 return false;
1440         } catch (e) {
1441                 exception_error("browseFeeds", e);
1442         }
1443 }
1444
1445 function updateFeedBrowser() {
1446         try {
1447
1448                 var query = "backend.php?op=rpc&subop=feedBrowser";
1449
1450                 var search = document.getElementById("feed_browser_search");
1451                 var limit = document.getElementById("feed_browser_limit");
1452
1453                 if (limit) {
1454                         query = query + "&limit=" + limit[limit.selectedIndex].value;
1455                 }
1456
1457                 if (search) {
1458                         query = query + "&search=" + param_escape(search.value);
1459                 }
1460
1461                 notify_progress("Loading, please wait...", true);
1462
1463                 new Ajax.Request(query, {
1464                         onComplete: function(transport) {
1465                                 notify('');
1466
1467                                 var c = document.getElementById("browseFeedList");
1468                                 var r = transport.responseXML.getElementsByTagName("content")[0];
1469                                 var nr = transport.responseXML.getElementsByTagName("num-results")[0];
1470                                 var sb = document.getElementById("feed_browser_subscribe");
1471
1472                                 if (c && r) {
1473                                         c.innerHTML = r.firstChild.nodeValue;
1474                                 }
1475
1476                                 if (nr && sb) {
1477                                         if (nr.getAttribute("value") > 0) {
1478                                                 sb.disabled = false;
1479                                         } else {
1480                                                 sb.disabled = true;
1481                                         }
1482                                 }
1483
1484                         } });
1485
1486
1487         } catch (e) {
1488                 exception_error("updateFeedBrowser", e);
1489         }
1490 }
1491
1492
1493 function feedBrowserSubscribe() {
1494         try {
1495
1496                 var selected = getSelectedFeedsFromBrowser();
1497
1498                 if (selected.length > 0) {
1499                         closeInfoBox();
1500
1501                         notify_progress("Loading, please wait...", true);
1502
1503                         var query =  "backend.php?op=pref-feeds&subop=massSubscribe&ids="+
1504                                 param_escape(selected.toString());
1505
1506                         new Ajax.Request(query, {
1507                                 onComplete: function(transport) {
1508                                         updateFeedList();
1509                                 } });
1510
1511                 } else {
1512                         alert(__("No feeds are selected."));
1513                 }
1514
1515         } catch (e) {
1516                 exception_error("feedBrowserSubscribe", e);
1517         }
1518 }
1519