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
  21 function tagsAreDisplayed() {
  22         return display_tags;
  23 }
  24
  25 function toggleTags(show_all) {
  26
  27         try {
  28
  29         debug("toggleTags: " + show_all + "; " + display_tags);
  30
  31         var p = document.getElementById("dispSwitchPrompt");
  32
  33         if (!show_all && !display_tags) {
  34                 displayDlg("printTagCloud");
  35         } else if (show_all) {
  36                 closeInfoBox();
  37                 display_tags = true;
  38                 p.innerHTML = __("display feeds");
  39                 notify_progress("Loading, please wait...", true);
  40                 updateFeedList();
  41         } else if (display_tags) {
  42                 display_tags = false;
  43                 p.innerHTML = __("tag cloud");
  44                 notify_progress("Loading, please wait...", true);
  45                 updateFeedList();
  46         }
  47
  48         } catch (e) {
  49                 exception_error("toggleTags", e);
  50         }
  51 }
  52
  53 function dlg_frefresh_callback(transport, deleted_feed) {
  54         if (getActiveFeedId() == deleted_feed) {
  55                 var h = document.getElementById("headlines-frame");
  56                 if (h) {
  57                         h.innerHTML = "<div class='whiteBox'>" + __('No feed selected.') + "</div>";
  58                 }
  59         }
  60
  61         setTimeout('updateFeedList(false, false)', 50);
  62         closeInfoBox();
  63 }
  64
  65 function refetch_callback2(transport) {
  66         try {
  67
  68                 var date = new Date();
  69
  70                 parse_counters_reply(transport, true);
  71
  72                 debug("refetch_callback2: done");
  73
  74 /*              if (!daemon_enabled && !daemon_refresh_only) {
  75                         notify_info("All feeds updated.");
  76                         updateTitle("");
  77                 } else {
  78                         //notify("");
  79                 } */
  80         } catch (e) {
  81                 exception_error("refetch_callback", e);
  82                 updateTitle("");
  83         }
  84 }
  85
  86 function backend_sanity_check_callback(transport) {
  87
  88         try {
  89
  90                 if (sanity_check_done) {
  91                         fatalError(11, "Sanity check request received twice. This can indicate "+
  92                       "presence of Firebug or some other disrupting extension. "+
  93                                 "Please disable it and try again.");
  94                         return;
  95                 }
  96
  97                 if (!transport.responseXML) {
  98                         fatalError(3, "[D001, Received reply is not XML]: " + transport.responseText);
  99                         return;
 100                 }
 101
 102                 var reply = transport.responseXML.firstChild.firstChild;
 103
 104                 if (!reply) {
 105                         fatalError(3, "[D002, Invalid RPC reply]: " + transport.responseText);
 106                         return;
 107                 }
 108
 109                 var error_code = reply.getAttribute("error-code");
 110
 111                 if (error_code && error_code != 0) {
 112                         return fatalError(error_code, reply.getAttribute("error-msg"));
 113                 }
 114
 115                 debug("sanity check ok");
 116
 117                 var params = reply.nextSibling;
 118
 119                 if (params) {
 120                         debug('reading init-params...');
 121                         var param = params.firstChild;
 122
 123                         while (param) {
 124                                 var k = param.getAttribute("key");
 125                                 var v = param.getAttribute("value");
 126                                 debug(k + " => " + v);
 127                                 init_params[k] = v;
 128                                 param = param.nextSibling;
 129                         }
 130                 }
 131
 132                 sanity_check_done = true;
 133
 134                 init_second_stage();
 135
 136         } catch (e) {
 137                 exception_error("backend_sanity_check_callback", e);
 138         }
 139 }
 140
 141 function scheduleFeedUpdate(force) {
 142
 143         debug("in scheduleFeedUpdate");
 144
 145 /*      if (!daemon_enabled && !daemon_refresh_only) {
 146                 notify_progress("Updating feeds...", true);
 147         } */
 148
 149         var query_str = "backend.php?op=rpc&subop=";
 150
 151         if (force) {
 152                 query_str = query_str + "forceUpdateAllFeeds";
 153         } else {
 154                 query_str = query_str + "updateAllFeeds";
 155         }
 156
 157         var omode;
 158
 159         if (firsttime_update && !navigator.userAgent.match("Opera")) {
 160                 firsttime_update = false;
 161                 omode = "T";
 162         } else {
 163                 if (display_tags) {
 164                         omode = "tl";
 165                 } else {
 166                         omode = "flc";
 167                 }
 168         }
 169
 170         query_str = query_str + "&omode=" + omode;
 171         query_str = query_str + "&uctr=" + global_unread;
 172
 173         var date = new Date();
 174         var timestamp = Math.round(date.getTime() / 1000);
 175         query_str = query_str + "&ts=" + timestamp
 176
 177         debug("REFETCH query: " + query_str);
 178
 179         new Ajax.Request(query_str, {
 180                 onComplete: function(transport) {
 181                                 refetch_callback2(transport);
 182                         } });
 183 }
 184
 185 function updateFeedList(silent, fetch) {
 186
 187 //      if (silent != true) {
 188 //              notify("Loading feed list...");
 189 //      }
 190
 191         debug("<b>updateFeedList</b>");
 192
 193         var query_str = "backend.php?op=feeds";
 194
 195         if (display_tags) {
 196                 query_str = query_str + "&tags=1";
 197         }
 198
 199         if (getActiveFeedId() && !activeFeedIsCat()) {
 200                 query_str = query_str + "&actid=" + getActiveFeedId();
 201         }
 202
 203         var date = new Date();
 204         var timestamp = Math.round(date.getTime() / 1000);
 205         query_str = query_str + "&ts=" + timestamp
 206
 207         if (fetch) query_str = query_str + "&fetch=yes";
 208
 209 //      var feeds_frame = document.getElementById("feeds-frame");
 210 //      feeds_frame.src = query_str;
 211
 212         debug("updateFeedList Q=" + query_str);
 213
 214         new Ajax.Request(query_str, {
 215                 onComplete: function(transport) {
 216                         feedlist_callback2(transport);
 217                 } });
 218
 219 }
 220
 221 function catchupAllFeeds() {
 222
 223         var str = __("Mark all articles as read?");
 224
 225         if (getInitParam("confirm_feed_catchup") != 1 || confirm(str)) {
 226
 227                 var query_str = "backend.php?op=feeds&subop=catchupAll";
 228
 229                 notify_progress("Marking all feeds as read...");
 230
 231                 debug("catchupAllFeeds Q=" + query_str);
 232
 233                 new Ajax.Request(query_str, {
 234                         onComplete: function(transport) {
 235                                 feedlist_callback2(transport);
 236                         } });
 237
 238                 global_unread = 0;
 239                 updateTitle("");
 240         }
 241 }
 242
 243 function viewCurrentFeed(subop) {
 244
 245 //      if (getActiveFeedId()) {
 246         if (getActiveFeedId() != undefined) {
 247                 viewfeed(getActiveFeedId(), subop, active_feed_is_cat);
 248         } else {
 249                 disableContainerChildren("headlinesToolbar", false, document);
 250 //              viewfeed(-1, subop); // FIXME
 251         }
 252         return false; // block unneeded form submits
 253 }
 254
 255 function viewfeed(feed, subop) {
 256         var f = window.frames["feeds-frame"];
 257         f.viewfeed(feed, subop);
 258 }
 259
 260 function timeout() {
 261         scheduleFeedUpdate(false);
 262
 263         var refresh_time = getInitParam("feeds_frame_refresh");
 264
 265         if (!refresh_time) refresh_time = 600;
 266
 267         setTimeout("timeout()", refresh_time*1000);
 268 }
 269
 270 function resetSearch() {
 271         var searchbox = document.getElementById("searchbox")
 272
 273         if (searchbox.value != "" && getActiveFeedId()) {
 274                 searchbox.value = "";
 275                 viewfeed(getActiveFeedId(), "");
 276         }
 277 }
 278
 279 function searchCancel() {
 280         closeInfoBox(true);
 281 }
 282
 283 function search() {
 284         closeInfoBox();
 285         viewCurrentFeed(0, "");
 286 }
 287
 288 // if argument is undefined, current subtitle is not updated
 289 // use blank string to clear subtitle
 290 function updateTitle(s) {
 291         var tmp = "Tiny Tiny RSS";
 292
 293         if (s != undefined) {
 294                 current_subtitle = s;
 295         }
 296
 297         if (global_unread > 0) {
 298                 tmp = tmp + " (" + global_unread + ")";
 299         }
 300
 301         if (current_subtitle) {
 302                 tmp = tmp + " - " + current_subtitle;
 303         }
 304
 305         if (active_title_text.length > 0) {
 306                 tmp = tmp + " > " + active_title_text;
 307         }
 308
 309         document.title = tmp;
 310 }
 311
 312 function genericSanityCheck() {
 313
 314 //      if (!Ajax.getTransport()) fatalError(1);
 315
 316         setCookie("ttrss_vf_test", "TEST");
 317
 318         if (getCookie("ttrss_vf_test") != "TEST") {
 319                 fatalError(2);
 320         }
 321
 322         return true;
 323 }
 324
 325 function init() {
 326
 327         try {
 328
 329                 // this whole shebang is based on http://www.birnamdesigns.com/misc/busted2.html
 330
 331                 if (arguments.callee.done) return;
 332                 arguments.callee.done = true;
 333
 334                 disableContainerChildren("headlinesToolbar", true);
 335
 336                 Form.disable("main_toolbar_form");
 337
 338                 if (!genericSanityCheck())
 339                         return;
 340
 341                 if (getURLParam('debug')) {
 342                         Element.show("debug_output");
 343                         debug('debug mode activated');
 344                 }
 345
 346                 var params = "&ua=" + param_escape(navigator.userAgent);
 347
 348                 loading_set_progress(30);
 349
 350                 new Ajax.Request("backend.php?op=rpc&subop=sanityCheck" + params,       {
 351                         onComplete: function(transport) {
 352                                         backend_sanity_check_callback(transport);
 353                                 } });
 354
 355         } catch (e) {
 356                 exception_error("init", e);
 357         }
 358 }
 359
 360 function resize_headlines(delta_x, delta_y) {
 361
 362         debug("resize_headlines: " + delta_x + ":" + delta_y);
 363
 364         var h_frame = document.getElementById("headlines-frame");
 365         var c_frame = document.getElementById("content-frame");
 366         var f_frame = document.getElementById("footer");
 367         var feeds_frame = document.getElementById("feeds-holder");
 368         var resize_grab = document.getElementById("resize-grabber");
 369
 370         if (!c_frame || !h_frame) return;
 371
 372         if (feeds_frame && getInitParam("theme") == "compat") {
 373                         feeds_frame.style.bottom = f_frame.offsetHeight + "px";
 374         }
 375
 376         if (getInitParam("theme") == "3pane") {
 377
 378                 if (delta_x != undefined) {
 379                         if (c_frame.offsetLeft - delta_x > feeds_frame.offsetWidth + feeds_frame.offsetLeft + 100 && c_frame.offsetWidth + delta_x > 100) {
 380                                 hor_offset = hor_offset + delta_x;
 381                         }
 382                 }
 383
 384                 debug("resize_headlines: HOR-mode");
 385
 386                 c_frame.style.width = (400 + hor_offset) + "px";
 387                 h_frame.style.right = c_frame.offsetWidth - 1 + "px";
 388
 389                 resize_grab.style.top = (h_frame.offsetTop + h_frame.offsetHeight - 60) + "px";
 390                 resize_grab.style.left = (h_frame.offsetLeft + h_frame.offsetWidth -
 391                         4) + "px";
 392                 resize_grab.style.display = "block";
 393
 394         } else {
 395
 396                 if (delta_y != undefined) {
 397                         if (c_frame.offsetHeight + delta_y > 100 && h_frame.offsetHeight - delta_y > 100) {
 398                                 ver_offset = ver_offset + delta_y;
 399                         }
 400                 }
 401
 402                 debug("resize_headlines: VER-mode");
 403
 404                 if (!is_msie()) {
 405                         h_frame.style.height = (300 - ver_offset) + "px";
 406
 407                         c_frame.style.top = (h_frame.offsetTop + h_frame.offsetHeight + 1) + "px";
 408                         h_frame.style.height = h_frame.offsetHeight + "px";
 409
 410                         var theme_c = 0;
 411
 412                         if (getInitParam("theme") == "graycube") theme_c = 1;
 413
 414                         resize_grab.style.top = (h_frame.offsetTop + h_frame.offsetHeight -
 415                                 4 - theme_c) + "px";
 416                         resize_grab.style.display = "block";
 417
 418                 } else {
 419                         h_frame.style.height = document.documentElement.clientHeight * 0.3 + "px";
 420                         c_frame.style.top = h_frame.offsetTop + h_frame.offsetHeight + 1 + "px";
 421
 422                         var c_bottom = document.documentElement.clientHeight;
 423
 424                         if (f_frame) {
 425                                 c_bottom = f_frame.offsetTop;
 426                         }
 427
 428                         c_frame.style.height = c_bottom - (h_frame.offsetTop +
 429                                 h_frame.offsetHeight + 1) + "px";
 430                         h_frame.style.height = h_frame.offsetHeight + "px";
 431
 432                 }
 433
 434         }
 435
 436         if (getInitParam("cookie_lifetime") != 0) {
 437                 setCookie("ttrss_offset_ver", ver_offset,
 438                         getInitParam("cookie_lifetime"));
 439                 setCookie("ttrss_offset_hor", hor_offset,
 440                         getInitParam("cookie_lifetime"));
 441         } else {
 442                 setCookie("ttrss_offset_ver", ver_offset);
 443                 setCookie("ttrss_offset_hor", hor_offset);
 444         }
 445
 446 }
 447
 448 function init_second_stage() {
 449
 450         try {
 451
 452                 delCookie("ttrss_vf_test");
 453
 454 //              document.onresize = resize_headlines;
 455
 456                 var toolbar = document.forms["main_toolbar_form"];
 457
 458                 dropboxSelect(toolbar.view_mode, getInitParam("default_view_mode"));
 459                 dropboxSelect(toolbar.limit, getInitParam("default_view_limit"));
 460
 461                 daemon_enabled = getInitParam("daemon_enabled") == 1;
 462                 daemon_refresh_only = getInitParam("daemon_refresh_only") == 1;
 463
 464                 setTimeout('updateFeedList(false, false)', 50);
 465
 466                 debug("second stage ok");
 467
 468                 loading_set_progress(60);
 469
 470                 ver_offset = parseInt(getCookie("ttrss_offset_ver"));
 471                 hor_offset = parseInt(getCookie("ttrss_offset_hor"));
 472
 473                 debug("offsets from cookies [x:y]: " + hor_offset + ":" + ver_offset);
 474
 475                 resize_headlines();
 476
 477         } catch (e) {
 478                 exception_error("init_second_stage", e);
 479         }
 480 }
 481
 482 function quickMenuChange() {
 483         var chooser = document.getElementById("quickMenuChooser");
 484         var opid = chooser[chooser.selectedIndex].value;
 485
 486         chooser.selectedIndex = 0;
 487         quickMenuGo(opid);
 488 }
 489
 490 function quickMenuGo(opid) {
 491         try {
 492
 493                 if (opid == "qmcPrefs") {
 494                         gotoPreferences();
 495                 }
 496
 497                 if (opid == "qmcSearch") {
 498                         displayDlg("search", getActiveFeedId() + ":" + activeFeedIsCat());
 499                         return;
 500                 }
 501
 502                 if (opid == "qmcAddFeed") {
 503                         displayDlg("quickAddFeed");
 504                         return;
 505                 }
 506
 507                 if (opid == "qmcEditFeed") {
 508                         editFeedDlg(getActiveFeedId());
 509                 }
 510
 511                 if (opid == "qmcRemoveFeed") {
 512                         var actid = getActiveFeedId();
 513
 514                         if (activeFeedIsCat()) {
 515                                 alert(__("You can't unsubscribe from the category."));
 516                                 return;
 517                         }
 518
 519                         if (!actid) {
 520                                 alert(__("Please select some feed first."));
 521                                 return;
 522                         }
 523
 524                         var fn = getFeedName(actid);
 525
 526                         var pr = __("Unsubscribe from %s?").replace("%s", fn);
 527
 528                         if (confirm(pr)) {
 529                                 unsubscribeFeed(actid);
 530                         }
 531
 532                         return;
 533                 }
 534
 535                 if (opid == "qmcClearFeed") {
 536                         var actid = getActiveFeedId();
 537
 538                         if (!actid) {
 539                                 alert(__("Please select some feed first."));
 540                                 return;
 541                         }
 542
 543                         if (activeFeedIsCat() || actid < 0) {
 544                                 alert(__("You can't clear this type of feed."));
 545                                 return;
 546                         }
 547
 548                         var fn = getFeedName(actid);
 549
 550                         var pr = __("Erase all non-starred articles in %s?").replace("%s", fn);
 551
 552                         if (confirm(pr)) {
 553                                 clearFeedArticles(actid);
 554                         }
 555
 556                         return;
 557                 }
 558
 559
 560                 if (opid == "qmcUpdateFeeds") {
 561                         scheduleFeedUpdate(true);
 562                         return;
 563                 }
 564
 565                 if (opid == "qmcCatchupAll") {
 566                         catchupAllFeeds();
 567                         return;
 568                 }
 569
 570                 if (opid == "qmcShowOnlyUnread") {
 571                         toggleDispRead();
 572                         return;
 573                 }
 574
 575                 if (opid == "qmcAddFilter") {
 576                         displayDlg("quickAddFilter", getActiveFeedId());
 577                 }
 578
 579                 if (opid == "qmcRescoreFeed") {
 580                         rescoreCurrentFeed();
 581                 }
 582
 583                 if (opid == "qmcHKhelp") {
 584                         //Element.show("hotkey_help_overlay");
 585                         Effect.Appear("hotkey_help_overlay", {duration : 0.3});
 586                 }
 587
 588                 if (opid == "qmcResetUI") {
 589                         hor_offset = 0;
 590                         ver_offset = 0;
 591                         resize_headlines();
 592                 }
 593
 594         } catch (e) {
 595                 exception_error("quickMenuGo", e);
 596         }
 597 }
 598
 599 function unsubscribeFeed(feed_id) {
 600
 601         notify_progress("Removing feed...");
 602
 603         var query = "backend.php?op=pref-feeds&quiet=1&subop=remove&ids=" + feed_id;
 604
 605         new Ajax.Request(query, {
 606                 onComplete: function(transport) {
 607                                 dlg_frefresh_callback(transport, feed_id);
 608                         } });
 609
 610
 611         return false;
 612 }
 613
 614
 615 function updateFeedTitle(t) {
 616         active_title_text = t;
 617         updateTitle();
 618 }
 619
 620 function toggleDispRead() {
 621         try {
 622
 623                 var hide_read_feeds = (getInitParam("hide_read_feeds") == "1");
 624
 625                 hide_read_feeds = !hide_read_feeds;
 626
 627                 debug("toggle_disp_read => " + hide_read_feeds);
 628
 629                 hideOrShowFeeds(getFeedsContext().document, hide_read_feeds);
 630
 631                 storeInitParam("hide_read_feeds", hide_read_feeds, true);
 632
 633         } catch (e) {
 634                 exception_error("toggleDispRead", e);
 635         }
 636 }
 637
 638 function parse_runtime_info(elem) {
 639         if (!elem) {
 640                 debug("parse_runtime_info: elem is null, aborting");
 641                 return;
 642         }
 643
 644         var param = elem.firstChild;
 645
 646         debug("parse_runtime_info: " + param);
 647
 648         while (param) {
 649                 var k = param.getAttribute("key");
 650                 var v = param.getAttribute("value");
 651
 652                 debug("RI: " + k + " => " + v);
 653
 654                 if (k == "new_version_available") {
 655                         var icon = document.getElementById("newVersionIcon");
 656                         if (icon) {
 657                                 if (v == "1") {
 658                                         icon.style.display = "inline";
 659                                 } else {
 660                                         icon.style.display = "none";
 661                                 }
 662                         }
 663                 }
 664
 665                 var error_flag;
 666
 667                 if (k == "daemon_is_running" && v != 1) {
 668                         notify_error("<span onclick=\"javascript:explainError(1)\">Update daemon is not running.</span>", true);
 669                         error_flag = true;
 670                 }
 671
 672                 if (k == "daemon_stamp_ok" && v != 1) {
 673                         notify_error("<span onclick=\"javascript:explainError(3)\">Update daemon is not updating feeds.</span>", true);
 674                         error_flag = true;
 675                 }
 676
 677                 if (!error_flag) {
 678                         notify('');
 679                 }
 680
 681 /*              var w = document.getElementById("noDaemonWarning");
 682
 683                 if (w) {
 684                         if (k == "daemon_is_running" && v != 1) {
 685                                 w.style.display = "block";
 686                         } else {
 687                                 w.style.display = "none";
 688                         }
 689                 } */
 690                 param = param.nextSibling;
 691         }
 692 }
 693
 694 function catchupCurrentFeed() {
 695
 696         var fn = getFeedName(getActiveFeedId(), active_feed_is_cat);
 697
 698         var str = __("Mark all articles in %s as read?").replace("%s", fn);
 699
 700 /*      if (active_feed_is_cat) {
 701                 str = "Mark all articles in this category as read?";
 702         } */
 703
 704         if (getInitParam("confirm_feed_catchup") != 1 || confirm(str)) {
 705                 return viewCurrentFeed('MarkAllRead')
 706         }
 707 }
 708
 709 function catchupFeedInGroup(id, title) {
 710
 711         var str = __("Mark all articles in %s as read?").replace("%s", title);
 712
 713         if (getInitParam("confirm_feed_catchup") != 1 || confirm(str)) {
 714                 return viewCurrentFeed('MarkAllReadGR:' + id)
 715         }
 716 }
 717
 718 function editFeedDlg(feed) {
 719         try {
 720
 721                 if (!feed) {
 722                         alert(__("Please select some feed first."));
 723                         return;
 724                 }
 725
 726                 if ((feed <= 0 && feed > -10) || activeFeedIsCat() || tagsAreDisplayed()) {
 727                         alert(__("You can't edit this kind of feed."));
 728                         return;
 729                 }
 730
 731                 var query = "";
 732
 733                 if (feed > 0) {
 734                         query = "backend.php?op=pref-feeds&subop=editfeed&id=" +        param_escape(feed);
 735                 } else {
 736                         query = "backend.php?op=pref-labels&subop=edit&id=" +   param_escape(-feed-11);
 737                 }
 738
 739                 disableHotkeys();
 740
 741                 new Ajax.Request(query, {
 742                         onComplete: function(transport) {
 743                                 infobox_callback2(transport);
 744                         } });
 745
 746         } catch (e) {
 747                 exception_error("editFeedDlg", e);
 748         }
 749 }
 750
 751 /* this functions duplicate those of prefs.js feed editor, with
 752         some differences because there is no feedlist */
 753
 754 function feedEditCancel() {
 755         closeInfoBox();
 756         return false;
 757 }
 758
 759 function feedEditSave() {
 760
 761         try {
 762
 763                 // FIXME: add parameter validation
 764
 765                 var query = Form.serialize("edit_feed_form");
 766
 767                 notify_progress("Saving feed...");
 768
 769                 new Ajax.Request("backend.php", {
 770                         parameters: query,
 771                         onComplete: function(transport) {
 772                                 dlg_frefresh_callback(transport);
 773                         } });
 774
 775
 776                 closeInfoBox();
 777
 778                 return false;
 779
 780         } catch (e) {
 781                 exception_error("feedEditSave (main)", e);
 782         }
 783 }
 784
 785 function labelEditCancel() {
 786         closeInfoBox();
 787         return false;
 788 }
 789
 790 function labelEditSave() {
 791
 792         try {
 793
 794                 closeInfoBox();
 795
 796                 notify_progress("Saving label...");
 797
 798                 query = Form.serialize("label_edit_form");
 799
 800                 new Ajax.Request("backend.php?" + query, {
 801                         onComplete: function(transport) {
 802                                 dlg_frefresh_callback(transport);
 803                         } });
 804
 805                 return false;
 806
 807         } catch (e) {
 808                 exception_error("feedEditSave (main)", e);
 809         }
 810
 811 }
 812
 813 function clearFeedArticles(feed_id) {
 814
 815         notify_progress("Clearing feed...");
 816
 817         var query = "backend.php?op=pref-feeds&quiet=1&subop=clear&id=" + feed_id;
 818
 819         new Ajax.Request(query, {
 820                 onComplete: function(transport) {
 821                                 dlg_frefresh_callback(transport, feed_id);
 822                         } });
 823
 824         return false;
 825 }
 826
 827 /*
 828 function toggle_feedlist() {
 829         try {
 830                 debug("toggle_feedlist");
 831
 832                 var fl = document.getElementById("feeds-holder");
 833
 834                 if (!Element.visible(fl)) {
 835                         Element.show(fl);
 836                         fl.style.zIndex = 30;
 837                         fl.scrollTop = _hfd_scrolltop;
 838                 } else {
 839                         _hfd_scrolltop = fl.scrollTop;
 840                         Element.hide(fl);
 841 //                      Effect.Fade(fl, {duration : 0.2,
 842 //                              queue: { position: 'end', scope: 'FLFADEQ', limit: 1 }});
 843                 }
 844         } catch (e) {
 845                 exception_error("toggle_feedlist", e);
 846         }
 847 } */
 848
 849 function collapse_feedlist() {
 850         try {
 851                 debug("toggle_feedlist");
 852
 853                 var theme = getInitParam("theme");
 854                 if (theme != "" && theme != "compact" && theme != "graycube" &&
 855                                 theme != "compat") return;
 856
 857                 var fl = document.getElementById("feeds-holder");
 858                 var fh = document.getElementById("headlines-frame");
 859                 var fc = document.getElementById("content-frame");
 860                 var ft = document.getElementById("toolbar");
 861                 var ff = document.getElementById("footer");
 862                 var fhdr = document.getElementById("header");
 863                 var fbtn = document.getElementById("collapse_feeds_btn");
 864
 865                 if (!Element.visible(fl)) {
 866                         Element.show(fl);
 867                         fbtn.value = "<<";
 868
 869                         if (theme != "graycube") {
 870
 871                                 fh.style.left = fl.offsetWidth + "px";
 872                                 ft.style.left = fl.offsetWidth + "px";
 873                                 if (fc) fc.style.left = fl.offsetWidth + "px";
 874                                 if (ff && theme != "compat") ff.style.left = (fl.offsetWidth-1) + "px";
 875
 876                                 if (theme == "compact") fhdr.style.left = (fl.offsetWidth + 10) + "px";
 877                         } else {
 878                                 fh.style.left = fl.offsetWidth + 40 + "px";
 879                                 ft.style.left = fl.offsetWidth + 40 +"px";
 880                                 if (fc) fc.style.left = fl.offsetWidth + 40 + "px";
 881                         }
 882
 883                         setCookie("ttrss_vf_fclps", "0");
 884
 885                 } else {
 886                         Element.hide(fl);
 887                         fbtn.value = ">>";
 888
 889                         if (theme != "graycube") {
 890
 891                                 fh.style.left = "0px";
 892                                 ft.style.left = "0px";
 893                                 if (fc) fc.style.left = "0px";
 894                                 if (ff) ff.style.left = "0px";
 895
 896                                 if (theme == "compact") fhdr.style.left = "10px";
 897
 898                         } else {
 899                                 fh.style.left = "20px";
 900                                 ft.style.left = "20px";
 901                                 if (fc) fc.style.left = "20px";
 902
 903                         }
 904
 905                         setCookie("ttrss_vf_fclps", "1");
 906                 }
 907         } catch (e) {
 908                 exception_error("toggle_feedlist", e);
 909         }
 910 }
 911
 912 function viewModeChanged() {
 913         cache_empty();
 914         return viewCurrentFeed(0, '')
 915 }
 916
 917 function viewLimitChanged() {
 918         cache_empty();
 919         return viewCurrentFeed(0, '')
 920 }
 921
 922 function adjustArticleScore(id, score) {
 923         try {
 924
 925                 var pr = prompt(__("Assign score to article:"), score);
 926
 927                 if (pr != undefined) {
 928                         var query = "backend.php?op=rpc&subop=setScore&id=" + id + "&score=" + pr;
 929
 930                         new Ajax.Request(query, {
 931                         onComplete: function(transport) {
 932                                         viewCurrentFeed();
 933                                 } });
 934
 935                 }
 936         } catch (e) {
 937                 exception_error("adjustArticleScore", e);
 938         }
 939 }
 940
 941 function rescoreCurrentFeed() {
 942
 943         var actid = getActiveFeedId();
 944
 945         if (activeFeedIsCat() || actid < 0 || tagsAreDisplayed()) {
 946                 alert(__("You can't rescore this kind of feed."));
 947                 return;
 948         }
 949
 950         if (!actid) {
 951                 alert(__("Please select some feed first."));
 952                 return;
 953         }
 954
 955         var fn = getFeedName(actid);
 956         var pr = __("Rescore articles in %s?").replace("%s", fn);
 957
 958         if (confirm(pr)) {
 959                 notify_progress("Rescoring articles...");
 960
 961                 var query = "backend.php?op=pref-feeds&subop=rescore&quiet=1&ids=" + actid;
 962
 963                 new Ajax.Request(query, {
 964                 onComplete: function(transport) {
 965                         viewCurrentFeed();
 966                 } });
 967         }
 968 }
 969
 970 function hotkey_handler(e) {
 971
 972         try {
 973
 974                 var keycode;
 975                 var shift_key = false;
 976
 977                 var feedlist = document.getElementById('feedList');
 978
 979                 try {
 980                         shift_key = e.shiftKey;
 981                 } catch (e) {
 982
 983                 }
 984
 985                 if (window.event) {
 986                         keycode = window.event.keyCode;
 987                 } else if (e) {
 988                         keycode = e.which;
 989                 }
 990
 991                 var keychar = String.fromCharCode(keycode);
 992
 993                 if (keycode == 27) { // escape
 994                         if (Element.visible("hotkey_help_overlay")) {
 995                                 Element.hide("hotkey_help_overlay");
 996                         }
 997                         hotkey_prefix = false;
 998                         closeInfoBox();
 999                 }
1000
1001                 if (!hotkeys_enabled) {
1002                         debug("hotkeys disabled");
1003                         return;
1004                 }
1005
1006                 if (keycode == 16) return; // ignore lone shift
1007
1008                 if ((keycode == 70 || keycode == 67 || keycode == 71) && !hotkey_prefix) {
1009                         hotkey_prefix = keycode;
1010                         debug("KP: PREFIX=" + keycode + " CHAR=" + keychar);
1011                         return;
1012                 }
1013
1014                 if (Element.visible("hotkey_help_overlay")) {
1015                         Element.hide("hotkey_help_overlay");
1016                 }
1017
1018                 /* Global hotkeys */
1019
1020                 if (!hotkey_prefix) {
1021
1022                         if (keycode == 68 && shift_key) { // d
1023                                 if (!Element.visible("debug_output")) {
1024                                         Element.show("debug_output");
1025                                         debug('debug mode activated');
1026                                 } else {
1027                                         Element.hide("debug_output");
1028                                 }
1029
1030                                 return;
1031                         }
1032
1033                         if ((keycode == 191 || keychar == '?') && shift_key) { // ?
1034                                 if (!Element.visible("hotkey_help_overlay")) {
1035                                         //Element.show("hotkey_help_overlay");
1036                                         Effect.Appear("hotkey_help_overlay", {duration : 0.3});
1037                                 } else {
1038                                         Element.hide("hotkey_help_overlay");
1039                                 }
1040                                 return false;
1041                         }
1042
1043                         if (keycode == 191 || keychar == '/') { // /
1044                                 displayDlg("search", getActiveFeedId() + ":" + activeFeedIsCat());
1045                                 return false;
1046                         }
1047
1048                         if (keycode == 82 && shift_key) { // R
1049                                 scheduleFeedUpdate(true);
1050                                 return;
1051                         }
1052
1053                         if (keycode == 82) { // r
1054                                 if (getActiveFeedId()) {
1055                                         viewfeed(getActiveFeedId(), "ForceUpdate", activeFeedIsCat());
1056                                         return;
1057                                 }
1058                         }
1059
1060                         if (keycode == 74) { // j
1061                                 var feed = getActiveFeedId();
1062                                 var new_feed = getRelativeFeedId(feedlist, feed, 'prev');
1063                                 if (new_feed) viewfeed(new_feed, '');
1064                                 return;
1065                         }
1066
1067                         if (keycode == 75) { // k
1068                                 var feed = getActiveFeedId();
1069                                 var new_feed = getRelativeFeedId(feedlist, feed, 'next');
1070                                 if (new_feed) viewfeed(new_feed, '');
1071                                 return;
1072                         }
1073
1074                         if (shift_key && (keycode == 78 || keycode == 40)) { // shift - n, down
1075                                 catchupRelativeToArticle(1);
1076                                 return;
1077                         }
1078
1079                         if (shift_key && (keycode == 80 || keycode == 38)) { // shift - p, up
1080                                 catchupRelativeToArticle(0);
1081                                 return;
1082                         }
1083
1084                         if (keycode == 78 || keycode == 40) { // n, down
1085                                 if (typeof moveToPost != 'undefined') {
1086                                         moveToPost('next');
1087                                         return;
1088                                 }
1089                         }
1090
1091                         if (keycode == 80 || keycode == 38) { // p, up
1092                                 if (typeof moveToPost != 'undefined') {
1093                                         moveToPost('prev');
1094                                         return;
1095                                 }
1096                         }
1097
1098                         if (keycode == 83 && shift_key) { // S
1099                                 var id = getActiveArticleId();
1100                                 if (id) {
1101                                         togglePub(id);
1102                                 }
1103                                 return;
1104                         }
1105
1106                         if (keycode == 83) { // s
1107                                 var id = getActiveArticleId();
1108                                 if (id) {
1109                                         toggleMark(id);
1110                                 }
1111                                 return;
1112                         }
1113
1114
1115                         if (keycode == 85) { // u
1116                                 var id = getActiveArticleId();
1117                                 if (id) {
1118                                         toggleUnread(id);
1119                                 }
1120                                 return;
1121                         }
1122
1123                         if (keycode == 84 && shift_key) { // T
1124                                 var id = getActiveArticleId();
1125                                 if (id) {
1126                                         editArticleTags(id, getActiveFeedId(), isCdmMode());
1127                                         return;
1128                                 }
1129                         }
1130
1131                         if (keycode == 9) { // tab
1132                                 var id = getArticleUnderPointer();
1133                                 if (id) {
1134                                         var cb = document.getElementById("RCHK-" + id);
1135
1136                                         if (cb) {
1137                                                 cb.checked = !cb.checked;
1138                                                 toggleSelectRowById(cb, "RROW-" + id);
1139                                                 return false;
1140                                         }
1141                                 }
1142                         }
1143
1144                         if (keycode == 79) { // o
1145                                 if (getActiveArticleId()) {
1146                                         openArticleInNewWindow(getActiveArticleId());
1147                                         return;
1148                                 }
1149                         }
1150
1151                         if (keycode == 81 && shift_key) { // Q
1152                                 if (typeof catchupAllFeeds != 'undefined') {
1153                                         catchupAllFeeds();
1154                                         return;
1155                                 }
1156                         }
1157
1158                         if (keycode == 81) { // q
1159                                 if (getActiveFeedId()) {
1160                                         catchupCurrentFeed();
1161                                         return;
1162                                 }
1163                         }
1164
1165                         if (keycode == 220 && shift_key) { // shift + |
1166                                 if (document.getElementById("subtoolbar_search")) {
1167                                         if (Element.visible("subtoolbar_search")) {
1168                                                 Element.hide("subtoolbar_search");
1169                                                 Element.show("subtoolbar_ftitle");
1170                                                 setTimeout("Element.focus('subtoolbar_search_box')", 100);
1171                                         } else {
1172                                                         Element.show("subtoolbar_search");
1173                                                 Element.hide("subtoolbar_ftitle");
1174                                         }
1175                                 }
1176                         }
1177                 }
1178
1179                 /* Prefix f */
1180
1181                 if (hotkey_prefix == 70) { // f
1182
1183                         hotkey_prefix = false;
1184
1185                         if (keycode == 65) { // a
1186                                 toggleDispRead();
1187                                 return false;
1188                         }
1189
1190                         if (keycode == 85 && shift_key) { // U
1191                                 scheduleFeedUpdate(true);
1192                                 return false;
1193                         }
1194
1195                         if (keycode == 85) { // u
1196                                 if (getActiveFeedId()) {
1197                                         viewfeed(getActiveFeedId(), "ForceUpdate");
1198                                         return false;
1199                                 }
1200                         }
1201
1202                         if (keycode == 69) { // e
1203                                 editFeedDlg(getActiveFeedId());
1204                                 return false;
1205                         }
1206
1207                         if (keycode == 83) { // s
1208                                 displayDlg("quickAddFeed");
1209                                 return false;
1210                         }
1211
1212                         if (keycode == 67 && shift_key) { // C
1213                                 if (typeof catchupAllFeeds != 'undefined') {
1214                                         catchupAllFeeds();
1215                                         return false;
1216                                 }
1217                         }
1218
1219                         if (keycode == 67) { // c
1220                                 if (getActiveFeedId()) {
1221                                         catchupCurrentFeed();
1222                                         return false;
1223                                 }
1224                         }
1225
1226                 }
1227
1228                 /* Prefix c */
1229
1230                 if (hotkey_prefix == 67) { // c
1231                         hotkey_prefix = false;
1232
1233                         if (keycode == 70) { // f
1234                                 displayDlg("quickAddFilter", getActiveFeedId());
1235                                 return false;
1236                         }
1237
1238                         if (keycode == 83) { // s
1239                                 if (typeof collapse_feedlist != 'undefined') {
1240                                         collapse_feedlist();
1241                                         return false;
1242                                 }
1243                         }
1244
1245                 }
1246
1247                 /* Prefix g */
1248
1249                 if (hotkey_prefix == 71) { // g
1250
1251                         hotkey_prefix = false;
1252
1253                         if (keycode == 83) { // s
1254                                 viewfeed(-1);
1255                                 return false;
1256                         }
1257
1258                         if (keycode == 80 && shift_key) { // P
1259                                 gotoPreferences();
1260                                 return false;
1261                         }
1262
1263                         if (keycode == 80) { // p
1264                                 viewfeed(-2);
1265                                 return false;
1266                         }
1267
1268                         if (keycode == 70) { // f
1269                                 viewfeed(-3);
1270                                 return false;
1271                         }
1272
1273                         if (keycode == 84 && shift_key) { // T
1274                                 toggleTags();
1275                                 return false;
1276                         }
1277
1278                 }
1279
1280 /*
1281                 if (keycode == 48) { // 0
1282                         return setHotkeyZone(0);
1283                 }
1284
1285                 if (keycode == 49) { // 1
1286                         return setHotkeyZone(1);
1287                 }
1288
1289                 if (keycode == 50) { // 2
1290                         return setHotkeyZone(2);
1291                 }
1292
1293                 if (keycode == 51) { // 3
1294                         return setHotkeyZone(3);
1295                 }
1296
1297                 if (keycode == 82) { // r
1298                         return scheduleFeedUpdate(true);
1299                 }
1300
1301                 if (keycode == 83) { // s
1302                         return displayDlg("search", getActiveFeedId());
1303                 }
1304
1305                 if (keycode == 85) { // u
1306                         if (getActiveFeedId()) {
1307                                 return viewfeed(getActiveFeedId(), "ForceUpdate");
1308                         }
1309                 }
1310
1311                 if (keycode == 65) { // a
1312                         return toggleDispRead();
1313                 }
1314
1315                 var feedlist = document.getElementById('feedList');
1316
1317                 if (keycode == 74) { // j
1318                         var feed = getActiveFeedId();
1319                         var new_feed = getRelativeFeedId(feedlist, feed, 'prev');
1320                         if (new_feed) viewfeed(new_feed, '');
1321                 }
1322
1323                 if (keycode == 75) { // k
1324                         var feed = getActiveFeedId();
1325                         var new_feed = getRelativeFeedId(feedlist, feed, 'next');
1326                         if (new_feed) viewfeed(new_feed, '');
1327                 }
1328
1329                 if (shift_key && (keycode == 78 || keycode == 40)) { // shift - n, down
1330                         return catchupRelativeToArticle(1);
1331                 }
1332
1333                 if (shift_key && (keycode == 80 || keycode == 38)) { // shift - p, up
1334                         return catchupRelativeToArticle(0);
1335                 }
1336
1337                 if (keycode == 78 || keycode == 40) { // n, down
1338                         if (typeof moveToPost != 'undefined') {
1339                                 return moveToPost('next');
1340                         }
1341                 }
1342
1343                 if (keycode == 80 || keycode == 38) { // p, up
1344                         if (typeof moveToPost != 'undefined') {
1345                                 return moveToPost('prev');
1346                         }
1347                 }
1348
1349                 if (keycode == 68 && shift_key) { // d
1350                         if (!debug_mode_enabled) {
1351                                 document.getElementById('debug_output').style.display = 'block';
1352                                 debug('debug mode activated');
1353                         } else {
1354                                 document.getElementById('debug_output').style.display = 'none';
1355                         }
1356
1357                         debug_mode_enabled = !debug_mode_enabled;
1358                 }
1359
1360                 if (keycode == 191 && shift_key) { // ?
1361                         if (!Element.visible("hotkey_help_overlay")) {
1362                                 Element.show("hotkey_help_overlay");
1363                         } else {
1364                                 Element.hide("hotkey_help_overlay");
1365                         }
1366                 }
1367
1368                 if (keycode == 69 && shift_key) { // e
1369                         return editFeedDlg(getActiveFeedId());
1370                 }
1371
1372                 if (keycode == 70 && shift_key) { // f
1373                         if (getActiveFeedId()) {
1374                                 return catchupCurrentFeed();
1375                         }
1376                 }
1377
1378                 if (keycode == 80 && shift_key) { // p
1379                         if (getActiveFeedId()) {
1380                                 return catchupPage();
1381                         }
1382                 }
1383
1384                 if (keycode == 86) { // v
1385                         if (getActiveArticleId()) {
1386                                 openArticleInNewWindow(getActiveArticleId());
1387                         }
1388                 }
1389
1390                 if (keycode == 84) { // t
1391
1392                         var id = getActiveArticleId();
1393
1394                         if (id) {
1395
1396                                 var cb = document.getElementById("RCHK-" + id);
1397
1398                                 if (cb) {
1399                                         cb.checked = !cb.checked;
1400                                         toggleSelectRowById(cb, "RROW-" + id);
1401                                 }
1402                         }
1403                 }
1404
1405                 if (keycode == 67) { // c
1406                         var id = getActiveArticleId();
1407
1408                         if (id) {
1409                                 toggleUnread(id, 0);
1410                         }
1411                 }
1412
1413                 if (keycode == 67 && shift_key) { // c
1414                         if (typeof collapse_feedlist != 'undefined') {
1415                                 return collapse_feedlist();
1416                         }
1417                 }
1418
1419                 if (keycode == 81 && shift_key) { // shift + q
1420                         if (typeof catchupAllFeeds != 'undefined') {
1421                                 return catchupAllFeeds();
1422                         }
1423                 }
1424
1425                 if (keycode == 73 && shift_key) { // shift + i
1426                         if (document.getElementById("subtoolbar_search")) {
1427                                 if (Element.visible("subtoolbar_search")) {
1428                                         Element.hide("subtoolbar_search");
1429                                         Element.show("subtoolbar_ftitle");
1430                                         setTimeout("Element.focus('subtoolbar_search_box')", 100);
1431                                 } else {
1432                                         Element.show("subtoolbar_search");
1433                                         Element.hide("subtoolbar_ftitle");
1434                                 }
1435                         }
1436                 }
1437
1438                 if (keycode == 27) { // escape
1439                         if (Element.visible("hotkey_help_overlay")) {
1440                                 Element.hide("hotkey_help_overlay");
1441                         }
1442                 }
1443
1444                 if (typeof localHotkeyHandler != 'undefined') {
1445                         try {
1446                                 return localHotkeyHandler(e);
1447                         } catch (e) {
1448                                 exception_error("hotkey_handler, local:", e);
1449                         }
1450                 } */
1451
1452                 if (hotkey_prefix) {
1453                         debug("KP: PREFIX=" + hotkey_prefix + " CODE=" + keycode + " CHAR=" + keychar);
1454                 } else {
1455                         debug("KP: CODE=" + keycode + " CHAR=" + keychar);
1456                 }
1457
1458
1459         } catch (e) {
1460                 exception_error("hotkey_handler", e);
1461         }
1462 }