functions.js

   1 var hotkeys_enabled = true;
   2 var debug_mode_enabled = false;
   3 var xmlhttp_rpc = Ajax.getTransport();
   4
   5 function browser_has_opacity() {
   6         return navigator.userAgent.match("Gecko") != null ||
   7                 navigator.userAgent.match("Opera") != null;
   8 }
   9
  10 function is_opera() {
  11         return navigator.userAgent.match("Opera");
  12 }
  13
  14 function is_khtml() {
  15         return navigator.userAgent.match("KHTML");
  16 }
  17
  18 function is_safari() {
  19         return navigator.userAgent.match("Safari");
  20 }
  21
  22 function exception_error(location, e, silent) {
  23         var msg;
  24
  25         if (e.fileName) {
  26                 var base_fname = e.fileName.substring(e.fileName.lastIndexOf("/") + 1);
  27
  28                 msg = "Exception: " + e.name + ", " + e.message +
  29                         "\nFunction: " + location + "()" +
  30                         "\nLocation: " + base_fname + ":" + e.lineNumber;
  31
  32         } else {
  33                 msg = "Exception: " + e + "\nFunction: " + location + "()";
  34         }
  35
  36         debug("<b>EXCEPTION: " + msg + "</b>");
  37
  38         if (!silent) {
  39                 alert(msg);
  40         }
  41 }
  42
  43 function disableHotkeys() {
  44         hotkeys_enabled = false;
  45 }
  46
  47 function enableHotkeys() {
  48         hotkeys_enabled = true;
  49 }
  50
  51 function xmlhttp_ready(obj) {
  52         return obj.readyState == 4 || obj.readyState == 0 || !obj.readyState;
  53 }
  54
  55 function notify_callback() {
  56         var container = document.getElementById('notify');
  57         if (xmlhttp.readyState == 4) {
  58                 container.innerHTML=xmlhttp.responseText;
  59         }
  60 }
  61
  62 function rpc_notify_callback() {
  63         var container = document.getElementById('notify');
  64         if (xmlhttp_rpc.readyState == 4) {
  65                 container.innerHTML=xmlhttp_rpc.responseText;
  66         }
  67 }
  68
  69 function param_escape(arg) {
  70         if (typeof encodeURIComponent != 'undefined')
  71                 return encodeURIComponent(arg);
  72         else
  73                 return escape(arg);
  74 }
  75
  76 function param_unescape(arg) {
  77         if (typeof decodeURIComponent != 'undefined')
  78                 return decodeURIComponent(arg);
  79         else
  80                 return unescape(arg);
  81 }
  82
  83 function delay(gap) {
  84         var then,now;
  85         then=new Date().getTime();
  86         now=then;
  87         while((now-then)<gap) {
  88                 now=new Date().getTime();
  89         }
  90 }
  91
  92 var notify_hide_timerid = false;
  93 var notify_last_doc = false;
  94
  95 var notify_effect = false;
  96
  97 function hide_notify() {
  98         if (notify_last_doc) {
  99                 var n = notify_last_doc.getElementById("notify");
 100                 n.style.display = "none";
 101
 102 /*              if (browser_has_opacity()) {
 103                         if (notify_opacity >= 0) {
 104                                 notify_opacity = notify_opacity - 0.1;
 105                                 n.style.opacity = notify_opacity;
 106                                 notify_hide_timerid = window.setTimeout("hide_notify()", 20);
 107                         } else {
 108                                 n.style.display = "none";
 109                                 n.style.opacity = 1;
 110                         }
 111                 } else {
 112                         n.style.display = "none";
 113                 } */
 114         }
 115 }
 116
 117 function notify_real(msg, doc, no_hide, is_err) {
 118
 119         var n = doc.getElementById("notify");
 120         var nb = doc.getElementById("notify_body");
 121
 122         if (!n || !nb) return;
 123
 124         if (notify_hide_timerid) {
 125                 window.clearTimeout(notify_hide_timerid);
 126         }
 127
 128         notify_last_doc = doc;
 129         notify_opacity = 1;
 130
 131         if (msg == "") {
 132                 if (n.style.display == "block") {
 133                         notify_hide_timerid = window.setTimeout("hide_notify()", 0);
 134                 }
 135                 return;
 136         } else {
 137                 n.style.display = "block";
 138         }
 139
 140         if (is_err) {
 141                 n.className = "notifyError";
 142 //              n.style.backgroundColor = "#ffcccc";
 143 //              n.style.color = "black";
 144 //              n.style.borderColor = "#ff0000";
 145         } else {
 146                 n.className = "notify";
 147 //              n.style.backgroundColor = "#fff7d5";
 148 //              n.style.borderColor = "#d7c47a";
 149 //              n.style.color = "black";
 150         }
 151
 152 //      msg = "<img src='images/live_com_loading.gif'> " + msg;
 153
 154         nb.innerHTML = msg;
 155
 156         if (!no_hide) {
 157                 notify_hide_timerid = window.setTimeout("hide_notify()", 3000);
 158         }
 159 }
 160
 161 function p_notify(msg, no_hide, is_err) {
 162         notify_real(msg, document, no_hide, is_err);
 163 }
 164
 165 function notify(msg, no_hide, is_err) {
 166         notify_real(msg, document, no_hide, is_err);
 167 }
 168
 169 function printLockingError() {
 170         notify("Please wait until operation finishes");}
 171
 172 function hotkey_handler(e) {
 173
 174         try {
 175
 176                 var keycode;
 177                 var shift_key = false;
 178
 179                 try {
 180                         shift_key = e.shiftKey;
 181                 } catch (e) {
 182
 183                 }
 184
 185                 if (!hotkeys_enabled) return;
 186
 187                 if (window.event) {
 188                         keycode = window.event.keyCode;
 189                 } else if (e) {
 190                         keycode = e.which;
 191                 }
 192
 193                 if (keycode == 82) { // r
 194                         return scheduleFeedUpdate(true);
 195                 }
 196
 197                 if (keycode == 83) { // s
 198                         return displayDlg("search", getActiveFeedId());
 199                 }
 200
 201                 if (keycode == 85) { // u
 202                         if (getActiveFeedId()) {
 203                                 return viewfeed(getActiveFeedId(), "ForceUpdate");
 204                         }
 205                 }
 206
 207                 if (keycode == 65) { // a
 208                         return toggleDispRead();
 209                 }
 210
 211                 var feedlist = document.getElementById('feedList');
 212
 213                 if (keycode == 74) { // j
 214                         var feed = getActiveFeedId();
 215                         var new_feed = getRelativeFeedId(feedlist, feed, 'prev');
 216                         if (new_feed) viewfeed(new_feed, '');
 217                 }
 218
 219                 if (keycode == 75) { // k
 220                         var feed = getActiveFeedId();
 221                         var new_feed = getRelativeFeedId(feedlist, feed, 'next');
 222                         if (new_feed) viewfeed(new_feed, '');
 223                 }
 224
 225                 if (!is_safari() && (keycode == 78 || keycode == 40)) { // n, down
 226                         if (typeof moveToPost != 'undefined') {
 227                                 return moveToPost('next');
 228                         }
 229                 }
 230
 231                 if (!is_safari() && (keycode == 80 || keycode == 38)) { // p, up
 232                         if (typeof moveToPost != 'undefined') {
 233                                 return moveToPost('prev');
 234                         }
 235                 }
 236
 237                 if (keycode == 68 && shift_key) { // d
 238                         if (!debug_mode_enabled) {
 239                                 document.getElementById('debug_output').style.display = 'block';
 240                                 debug('debug mode activated');
 241                         } else {
 242                                 document.getElementById('debug_output').style.display = 'none';
 243                         }
 244
 245                         debug_mode_enabled = !debug_mode_enabled;
 246                 }
 247
 248                 if (keycode == 190 && shift_key) { // >
 249                         viewFeedGoPage(1);
 250                 }
 251
 252                 if (keycode == 188 && shift_key) { // <
 253                         viewFeedGoPage(-1);
 254                 }
 255
 256                 if (keycode == 191 && shift_key) { // ?
 257                         viewFeedGoPage(0);
 258                 }
 259
 260                 if (keycode == 69 && shift_key) {
 261                         return editFeedDlg(getActiveFeedId());
 262                 }
 263
 264                 if (typeof localHotkeyHandler != 'undefined') {
 265                         try {
 266                                 return localHotkeyHandler(e);
 267                         } catch (e) {
 268                                 exception_error("hotkey_handler, local:", e);
 269                         }
 270                 }
 271
 272                 debug("KP=" + keycode);
 273         } catch (e) {
 274                 exception_error("hotkey_handler", e);
 275         }
 276 }
 277
 278 function cleanSelectedList(element) {
 279         var content = document.getElementById(element);
 280
 281         if (!document.getElementById("feedCatHolder")) {
 282                 for (i = 0; i < content.childNodes.length; i++) {
 283                         var child = content.childNodes[i];
 284                         try {
 285                                 child.className = child.className.replace("Selected", "");
 286                         } catch (e) {
 287                                 //
 288                         }
 289                 }
 290         } else {
 291                 for (i = 0; i < content.childNodes.length; i++) {
 292                         var child = content.childNodes[i];
 293                         if (child.id == "feedCatHolder") {
 294                                 debug(child.id);
 295                                 var fcat = child.lastChild;
 296                                 for (j = 0; j < fcat.childNodes.length; j++) {
 297                                         var feed = fcat.childNodes[j];
 298                                         feed.className = feed.className.replace("Selected", "");
 299                                 }
 300                         }
 301                 }
 302         }
 303 }
 304
 305
 306 function cleanSelected(element) {
 307         var content = document.getElementById(element);
 308
 309         for (i = 0; i < content.rows.length; i++) {
 310                 content.rows[i].className = content.rows[i].className.replace("Selected", "");
 311         }
 312 }
 313
 314 function getVisibleUnreadHeadlines() {
 315         var content = document.getElementById("headlinesList");
 316
 317         var rows = new Array();
 318
 319         for (i = 0; i < content.rows.length; i++) {
 320                 var row_id = content.rows[i].id.replace("RROW-", "");
 321                 if (row_id.length > 0 && content.rows[i].className.match("Unread")) {
 322                                 rows.push(row_id);
 323                 }
 324         }
 325         return rows;
 326 }
 327
 328 function getVisibleHeadlineIds() {
 329
 330         var content = document.getElementById("headlinesList");
 331
 332         var rows = new Array();
 333
 334         for (i = 0; i < content.rows.length; i++) {
 335                 var row_id = content.rows[i].id.replace("RROW-", "");
 336                 if (row_id.length > 0) {
 337                                 rows.push(row_id);
 338                 }
 339         }
 340         return rows;
 341 }
 342
 343 function getFirstVisibleHeadlineId() {
 344         var rows = getVisibleHeadlineIds();
 345         return rows[0];
 346 }
 347
 348 function getLastVisibleHeadlineId() {
 349         var rows = getVisibleHeadlineIds();
 350         return rows[rows.length-1];
 351 }
 352
 353 function markHeadline(id) {
 354         var row = document.getElementById("RROW-" + id);
 355         if (row) {
 356                 var is_active = false;
 357
 358                 if (row.className.match("Active")) {
 359                         is_active = true;
 360                 }
 361                 row.className = row.className.replace("Selected", "");
 362                 row.className = row.className.replace("Active", "");
 363                 row.className = row.className.replace("Insensitive", "");
 364
 365                 if (is_active) {
 366                         row.className = row.className = "Active";
 367                 }
 368
 369                 var check = document.getElementById("RCHK-" + id);
 370
 371                 if (check) {
 372                         check.checked = true;
 373                 }
 374
 375                 row.className = row.className + "Selected";
 376
 377         }
 378 }
 379
 380 function getFeedIds() {
 381         var content = document.getElementById("feedsList");
 382
 383         var rows = new Array();
 384
 385         for (i = 0; i < content.rows.length; i++) {
 386                 var id = content.rows[i].id.replace("FEEDR-", "");
 387                 if (id.length > 0) {
 388                         rows.push(id);
 389                 }
 390         }
 391
 392         return rows;
 393 }
 394
 395 function setCookie(name, value, lifetime, path, domain, secure) {
 396
 397         var d = false;
 398
 399         if (lifetime) {
 400                 d = new Date();
 401                 d.setTime(lifetime * 1000);
 402         }
 403
 404         int_setCookie(name, value, d, path, domain, secure);
 405
 406 }
 407
 408 function int_setCookie(name, value, expires, path, domain, secure) {
 409         document.cookie= name + "=" + escape(value) +
 410                 ((expires) ? "; expires=" + expires.toGMTString() : "") +
 411                 ((path) ? "; path=" + path : "") +
 412                 ((domain) ? "; domain=" + domain : "") +
 413                 ((secure) ? "; secure" : "");
 414 }
 415
 416 function delCookie(name, path, domain) {
 417         if (getCookie(name)) {
 418                 document.cookie = name + "=" +
 419                 ((path) ? ";path=" + path : "") +
 420                 ((domain) ? ";domain=" + domain : "" ) +
 421                 ";expires=Thu, 01-Jan-1970 00:00:01 GMT";
 422         }
 423 }
 424
 425
 426 function getCookie(name) {
 427
 428         var dc = document.cookie;
 429         var prefix = name + "=";
 430         var begin = dc.indexOf("; " + prefix);
 431         if (begin == -1) {
 432             begin = dc.indexOf(prefix);
 433             if (begin != 0) return null;
 434         }
 435         else {
 436             begin += 2;
 437         }
 438         var end = document.cookie.indexOf(";", begin);
 439         if (end == -1) {
 440             end = dc.length;
 441         }
 442         return unescape(dc.substring(begin + prefix.length, end));
 443 }
 444
 445 function disableContainerChildren(id, disable, doc) {
 446
 447         if (!doc) doc = document;
 448
 449         var container = doc.getElementById(id);
 450
 451         if (!container) {
 452                 //alert("disableContainerChildren: element " + id + " not found");
 453                 return;
 454         }
 455
 456         for (var i = 0; i < container.childNodes.length; i++) {
 457                 var child = container.childNodes[i];
 458
 459                 try {
 460                         child.disabled = disable;
 461                 } catch (E) {
 462
 463                 }
 464
 465                 if (disable) {
 466                         if (child.className && child.className.match("button")) {
 467                                 child.className = "disabledButton";
 468                         }
 469                 } else {
 470                         if (child.className && child.className.match("disabledButton")) {
 471                                 child.className = "button";
 472                         }
 473                 }
 474         }
 475
 476 }
 477
 478 function gotoPreferences() {
 479         document.location.href = "prefs.php";
 480 }
 481
 482 function gotoMain() {
 483         document.location.href = "tt-rss.php";
 484 }
 485
 486 function gotoExportOpml() {
 487         document.location.href = "opml.php?op=Export";
 488 }
 489
 490 function getActiveFeedId() {
 491 //      return getCookie("ttrss_vf_actfeed");
 492         try {
 493                 debug("gAFID: " + active_feed_id);
 494                 return active_feed_id;
 495         } catch (e) {
 496                 exception_error("getActiveFeedId", e);
 497         }
 498 }
 499
 500 function activeFeedIsCat() {
 501         return active_feed_is_cat;
 502 }
 503
 504 function setActiveFeedId(id) {
 505 //      return setCookie("ttrss_vf_actfeed", id);
 506         try {
 507                 debug("sAFID(" + id + ")");
 508                 active_feed_id = id;
 509         } catch (e) {
 510                 exception_error("setActiveFeedId", e);
 511         }
 512 }
 513
 514 function parse_counters(reply, scheduled_call) {
 515         try {
 516
 517                 var feeds_found = 0;
 518
 519                 if (reply.firstChild && reply.firstChild.firstChild) {
 520                         debug("<b>wrong element passed to parse_counters, adjusting.</b>");
 521                         reply = reply.firstChild;
 522                 }
 523
 524                 for (var l = 0; l < reply.childNodes.length; l++) {
 525                         if (!reply.childNodes[l] ||
 526                                 typeof(reply.childNodes[l].getAttribute) == "undefined") {
 527                                 // where did this come from?
 528                                 continue;
 529                         }
 530
 531                         var id = reply.childNodes[l].getAttribute("id");
 532                         var t = reply.childNodes[l].getAttribute("type");
 533                         var ctr = reply.childNodes[l].getAttribute("counter");
 534                         var error = reply.childNodes[l].getAttribute("error");
 535                         var has_img = reply.childNodes[l].getAttribute("hi");
 536                         var updated = reply.childNodes[l].getAttribute("updated");
 537
 538                         if (id == "global-unread") {
 539                                 global_unread = ctr;
 540                                 updateTitle();
 541                                 continue;
 542                         }
 543
 544                         if (id == "subscribed-feeds") {
 545                                 feeds_found = ctr;
 546                                 continue;
 547                         }
 548
 549                         if (t == "category") {
 550                                 var catctr = document.getElementById("FCATCTR-" + id);
 551                                 if (catctr) {
 552                                         catctr.innerHTML = "(" + ctr + ")";
 553                                         if (ctr > 0) {
 554                                                 catctr.className = "catCtrHasUnread";
 555                                         } else {
 556                                                 catctr.className = "catCtrNoUnread";
 557                                         }
 558                                 }
 559                                 continue;
 560                         }
 561
 562                         var feedctr = document.getElementById("FEEDCTR-" + id);
 563                         var feedu = document.getElementById("FEEDU-" + id);
 564                         var feedr = document.getElementById("FEEDR-" + id);
 565                         var feed_img = document.getElementById("FIMG-" + id);
 566                         var feedlink = document.getElementById("FEEDL-" + id);
 567                         var feedupd = document.getElementById("FLUPD-" + id);
 568
 569                         if (updated && feedlink) {
 570                                 if (error) {
 571                                         feedlink.title = "Error: " + error + " (" + updated + ")";
 572                                 } else {
 573                                         feedlink.title = "Updated: " + updated;
 574                                 }
 575                         }
 576
 577                         if (updated && feedupd) {
 578                                 if (error) {
 579                                         feedupd.innerHTML = updated + " (Error)";
 580                                 } else {
 581                                         feedupd.innerHTML = updated;
 582                                 }
 583                         }
 584
 585                         if (feedctr && feedu && feedr) {
 586
 587                                 if (feedu.innerHTML != ctr && id == getActiveFeedId() && scheduled_call) {
 588                                         viewCurrentFeed();
 589                                 }
 590
 591                                 feedu.innerHTML = ctr;
 592
 593                                 if (error) {
 594                                         feedr.className = feedr.className.replace("feed", "error");
 595                                 } else if (id > 0) {
 596                                         feedr.className = feedr.className.replace("error", "feed");
 597                                 }
 598
 599                                 if (ctr > 0) {
 600                                         feedctr.className = "odd";
 601                                         if (!feedr.className.match("Unread")) {
 602                                                 var is_selected = feedr.className.match("Selected");
 603
 604                                                 feedr.className = feedr.className.replace("Selected", "");
 605                                                 feedr.className = feedr.className.replace("Unread", "");
 606
 607                                                 feedr.className = feedr.className + "Unread";
 608
 609                                                 if (is_selected) {
 610                                                         feedr.className = feedr.className + "Selected";
 611                                                 }
 612
 613                                         }
 614                                 } else {
 615                                         feedctr.className = "invisible";
 616                                         feedr.className = feedr.className.replace("Unread", "");
 617                                 }
 618                         }
 619                 }
 620
 621                 hideOrShowFeeds(document, getInitParam("hide_read_feeds") == 1);
 622
 623                 var feeds_stored = number_of_feeds;
 624
 625                 debug("Feed counters, C: " + feeds_found + ", S:" + feeds_stored);
 626
 627                 if (feeds_stored != feeds_found) {
 628                         number_of_feeds = feeds_found;
 629
 630                         if (feeds_stored != 0) {
 631                                 debug("Subscribed feed number changed, refreshing feedlist");
 632                                 setTimeout('updateFeedList(false, false)', 50);
 633                         }
 634                 }
 635
 636         } catch (e) {
 637                 exception_error("parse_counters", e);
 638         }
 639 }
 640
 641 function parse_counters_reply(xmlhttp, scheduled_call) {
 642
 643         if (!xmlhttp.responseXML) {
 644                 notify("refetch_callback: backend did not return valid XML", true, true);
 645                 return;
 646         }
 647
 648         var reply = xmlhttp.responseXML.firstChild;
 649
 650         if (!reply) {
 651                 notify("refetch_callback: backend did not return expected XML object", true, true);
 652                 updateTitle("");
 653                 return;
 654         }
 655
 656         var error_code = false;
 657         var error_msg = false;
 658
 659         if (reply.firstChild) {
 660                 error_code = reply.firstChild.getAttribute("error-code");
 661                 error_msg = reply.firstChild.getAttribute("error-msg");
 662         }
 663
 664         if (!error_code) {
 665                 error_code = reply.getAttribute("error-code");
 666                 error_msg = reply.getAttribute("error-msg");
 667         }
 668
 669         if (error_code && error_code != 0) {
 670                 debug("refetch_callback: got error code " + error_code);
 671                 return fatalError(error_code, error_msg);
 672         }
 673
 674         var counters = reply.firstChild;
 675
 676         parse_counters(counters, scheduled_call);
 677
 678         var runtime_info = counters.nextSibling;
 679
 680         parse_runtime_info(runtime_info);
 681
 682         if (getInitParam("feeds_sort_by_unread") == 1) {
 683                         resort_feedlist();
 684         }
 685
 686         hideOrShowFeeds(document, getInitParam("hide_read_feeds") == 1);
 687
 688 }
 689
 690 function all_counters_callback() {
 691         if (xmlhttp_rpc.readyState == 4) {
 692                 try {
 693 /*                      if (!xmlhttp_rpc.responseXML || !xmlhttp_rpc.responseXML.firstChild) {
 694                                 debug("[all_counters_callback] backend did not return valid XML");
 695                                 return;
 696                         }
 697
 698                         debug("in all_counters_callback : " + xmlhttp_rpc.responseXML);
 699
 700                         var reply = xmlhttp_rpc.responseXML.firstChild;
 701
 702                         var counters = reply.firstChild;
 703
 704                         parse_counters(counters);
 705
 706                         var runtime = counters.nextSibling;
 707
 708                         if (runtime) {
 709                                 parse_runtime_info(runtime);
 710                         }
 711
 712                         if (getInitParam("feeds_sort_by_unread") == 1) {
 713                                 resort_feedlist();
 714                         }
 715
 716                         hideOrShowFeeds(document, getInitParam("hide_read_feeds") == 1); */
 717
 718                         debug("in all_counters_callback");
 719
 720                         parse_counters_reply(xmlhttp_rpc);
 721
 722                 } catch (e) {
 723                         exception_error("all_counters_callback", e);
 724                 }
 725         }
 726 }
 727
 728 function get_feed_entry_unread(doc, elem) {
 729
 730         var id = elem.id.replace("FEEDR-", "");
 731
 732         if (id <= 0) {
 733                 return -1;
 734         }
 735
 736         try {
 737                 return parseInt(doc.getElementById("FEEDU-" + id).innerHTML);
 738         } catch (e) {
 739                 return -1;
 740         }
 741 }
 742
 743 function resort_category(doc, node) {
 744         debug("resort_category: " + node);
 745
 746         if (node.hasChildNodes() && node.firstChild.nextSibling != false) {
 747                 for (i = 0; i < node.childNodes.length; i++) {
 748                         if (node.childNodes[i].nodeName != "LI") { continue; }
 749
 750                         if (get_feed_entry_unread(doc, node.childNodes[i]) < 0) {
 751                                 continue;
 752                         }
 753
 754                         for (j = i+1; j < node.childNodes.length; j++) {
 755                                 if (node.childNodes[j].nodeName != "LI") { continue; }
 756
 757                                 var tmp_val = get_feed_entry_unread(doc, node.childNodes[i]);
 758                                 var cur_val = get_feed_entry_unread(doc, node.childNodes[j]);
 759
 760                                 if (cur_val > tmp_val) {
 761                                         tempnode_i = node.childNodes[i].cloneNode(true);
 762                                         tempnode_j = node.childNodes[j].cloneNode(true);
 763                                         node.replaceChild(tempnode_i, node.childNodes[j]);
 764                                         node.replaceChild(tempnode_j, node.childNodes[i]);
 765                                 }
 766                         }
 767
 768                 }
 769         }
 770
 771 }
 772
 773 function resort_feedlist() {
 774         debug("resort_feedlist");
 775
 776         var fd = document;
 777
 778         if (fd.getElementById("feedCatHolder")) {
 779
 780                 var feeds = fd.getElementById("feedList");
 781                 var child = feeds.firstChild;
 782
 783                 while (child) {
 784
 785                         if (child.id == "feedCatHolder") {
 786                                 resort_category(fd, child.firstChild);
 787                         }
 788
 789                         child = child.nextSibling;
 790                 }
 791
 792         } else {
 793                 resort_category(fd, fd.getElementById("feedList"));
 794         }
 795 }
 796
 797 function update_all_counters(feed) {
 798         if (xmlhttp_ready(xmlhttp_rpc)) {
 799                 var query = "backend.php?op=rpc&subop=getAllCounters";
 800
 801                 if (feed > 0) {
 802                         query = query + "&aid=" + feed;
 803                 }
 804
 805                 if (tagsAreDisplayed()) {
 806                         query = query + "&omode=lt";
 807                 } else {
 808                         query = query + "&omode=flc";
 809                 }
 810
 811                 debug("update_all_counters QUERY: " + query);
 812
 813                 var date = new Date();
 814                 var timestamp = Math.round(date.getTime() / 1000);
 815                 query = query + "&ts=" + timestamp
 816
 817                 xmlhttp_rpc.open("GET", query, true);
 818                 xmlhttp_rpc.onreadystatechange=all_counters_callback;
 819                 xmlhttp_rpc.send(null);
 820         }
 821 }
 822
 823 function popupHelp(tid) {
 824         var w = window.open("backend.php?op=help&tid=" + tid,
 825                 "Popup Help",
 826                 "menubar=no,location=no,resizable=yes,scrollbars=yes,status=no");
 827 }
 828
 829 /** * @(#)isNumeric.js * * Copyright (c) 2000 by Sundar Dorai-Raj
 830   * * @author Sundar Dorai-Raj
 831   * * Email: sdoraira@vt.edu
 832   * * This program is free software; you can redistribute it and/or
 833   * * modify it under the terms of the GNU General Public License
 834   * * as published by the Free Software Foundation; either version 2
 835   * * of the License, or (at your option) any later version,
 836   * * provided that any use properly credits the author.
 837   * * This program is distributed in the hope that it will be useful,
 838   * * but WITHOUT ANY WARRANTY; without even the implied warranty of
 839   * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 840   * * GNU General Public License for more details at http://www.gnu.org * * */
 841
 842   var numbers=".0123456789";
 843   function isNumeric(x) {
 844     // is x a String or a character?
 845     if(x.length>1) {
 846       // remove negative sign
 847       x=Math.abs(x)+"";
 848       for(j=0;j<x.length;j++) {
 849         // call isNumeric recursively for each character
 850         number=isNumeric(x.substring(j,j+1));
 851         if(!number) return number;
 852       }
 853       return number;
 854     }
 855     else {
 856       // if x is number return true
 857       if(numbers.indexOf(x)>=0) return true;
 858       return false;
 859     }
 860   }
 861
 862
 863 function hideOrShowFeeds(doc, hide) {
 864
 865         debug("hideOrShowFeeds: " + doc + ", " + hide);
 866
 867         var fd = document;
 868
 869         var list = fd.getElementById("feedList");
 870
 871         if (fd.getElementById("feedCatHolder")) {
 872
 873                 var feeds = fd.getElementById("feedList");
 874                 var child = feeds.firstChild;
 875
 876                 while (child) {
 877
 878                         if (child.id == "feedCatHolder") {
 879                                 hideOrShowFeedsCategory(fd, child.firstChild, hide, child.previousSibling);
 880                         }
 881
 882                         child = child.nextSibling;
 883                 }
 884
 885         } else {
 886                 hideOrShowFeedsCategory(fd, fd.getElementById("feedList"), hide);
 887         }
 888 }
 889
 890 function hideOrShowFeedsCategory(doc, node, hide, cat_node) {
 891
 892 //      debug("hideOrShowFeedsCategory: " + node + " (" + hide + ")");
 893
 894         var cat_unread = 0;
 895
 896         if (!node) {
 897                 debug("hideOrShowFeeds: passed node is null, aborting");
 898                 return;
 899         }
 900
 901         if (node.hasChildNodes() && node.firstChild.nextSibling != false) {
 902                 for (i = 0; i < node.childNodes.length; i++) {
 903                         if (node.childNodes[i].nodeName != "LI") { continue; }
 904
 905                         if (node.childNodes[i].style != undefined) {
 906
 907                                 var has_unread = (node.childNodes[i].className != "feed");
 908
 909         //                      debug(node.childNodes[i].id + " --> " + has_unread);
 910
 911                                 if (hide && !has_unread) {
 912                                         node.childNodes[i].style.display = "none";
 913                                 }
 914
 915                                 if (!hide) {
 916                                         node.childNodes[i].style.display = "list-item";
 917                                 }
 918
 919                                 if (has_unread) {
 920                                         node.childNodes[i].style.display = "list-item";
 921                                         cat_unread++;
 922                                 }
 923                         }
 924                 }
 925         }
 926
 927         if (cat_unread == 0) {
 928                 if (cat_node.style == undefined) {
 929                         debug("ERROR: supplied cat_node " + cat_node +
 930                                 " has no styles. WTF?");
 931                         return;
 932                 }
 933                 if (hide) {
 934                         cat_node.style.display = "none";
 935                 } else {
 936                         cat_node.style.display = "list-item";
 937                 }
 938         } else {
 939                 try {
 940                         cat_node.style.display = "list-item";
 941                 } catch (e) {
 942                         debug(e);
 943                 }
 944         }
 945
 946 //      debug("unread for category: " + cat_unread);
 947 }
 948
 949 function selectTableRow(r, do_select) {
 950         r.className = r.className.replace("Selected", "");
 951
 952         if (do_select) {
 953                 r.className = r.className + "Selected";
 954         }
 955 }
 956
 957 function selectTableRowById(elem_id, check_id, do_select) {
 958
 959         try {
 960
 961                 var row = document.getElementById(elem_id);
 962
 963                 if (row) {
 964                         selectTableRow(row, do_select);
 965                 }
 966
 967                 var check = document.getElementById(check_id);
 968
 969                 if (check) {
 970                         check.checked = do_select;
 971                 }
 972         } catch (e) {
 973                 exception_error("selectTableRowById", e);
 974         }
 975 }
 976
 977 function selectTableRowsByIdPrefix(content_id, prefix, check_prefix, do_select,
 978         classcheck, reset_others) {
 979
 980         var content = document.getElementById(content_id);
 981
 982         if (!content) {
 983                 alert("[selectTableRows] Element " + content_id + " not found.");
 984                 return;
 985         }
 986
 987         for (i = 0; i < content.rows.length; i++) {
 988                 if (!classcheck || content.rows[i].className.match(classcheck)) {
 989
 990                         if (content.rows[i].id.match(prefix)) {
 991                                 selectTableRow(content.rows[i], do_select);
 992
 993                                 var row_id = content.rows[i].id.replace(prefix, "");
 994                                 var check = document.getElementById(check_prefix + row_id);
 995
 996                                 if (check) {
 997                                         check.checked = do_select;
 998                                 }
 999                         } else if (reset_others) {
1000                                 selectTableRow(content.rows[i], false);
1001
1002                                 var row_id = content.rows[i].id.replace(prefix, "");
1003                                 var check = document.getElementById(check_prefix + row_id);
1004
1005                                 if (check) {
1006                                         check.checked = false;
1007                                 }
1008
1009                         }
1010                 } else if (reset_others) {
1011                         selectTableRow(content.rows[i], false);
1012
1013                         var row_id = content.rows[i].id.replace(prefix, "");
1014                         var check = document.getElementById(check_prefix + row_id);
1015
1016                         if (check) {
1017                                 check.checked = false;
1018                         }
1019
1020                 }
1021         }
1022 }
1023
1024 function getSelectedTableRowIds(content_id, prefix) {
1025
1026         var content = document.getElementById(content_id);
1027
1028         if (!content) {
1029                 alert("[getSelectedTableRowIds] Element " + content_id + " not found.");
1030                 return;
1031         }
1032
1033         var sel_rows = new Array();
1034
1035         for (i = 0; i < content.rows.length; i++) {
1036                 if (content.rows[i].id.match(prefix) &&
1037                                 content.rows[i].className.match("Selected")) {
1038
1039                         var row_id = content.rows[i].id.replace(prefix + "-", "");
1040                         sel_rows.push(row_id);
1041                 }
1042         }
1043
1044         return sel_rows;
1045
1046 }
1047
1048 function toggleSelectRowById(sender, id) {
1049         var row = document.getElementById(id);
1050
1051         if (sender.checked) {
1052                 if (!row.className.match("Selected")) {
1053                         row.className = row.className + "Selected";
1054                 }
1055         } else {
1056                 if (row.className.match("Selected")) {
1057                         row.className = row.className.replace("Selected", "");
1058                 }
1059         }
1060 }
1061
1062 function toggleSelectListRow(sender) {
1063         var parent_row = sender.parentNode;
1064
1065         if (sender.checked) {
1066                 if (!parent_row.className.match("Selected")) {
1067                         parent_row.className = parent_row.className + "Selected";
1068                 }
1069         } else {
1070                 if (parent_row.className.match("Selected")) {
1071                         parent_row.className = parent_row.className.replace("Selected", "");
1072                 }
1073         }
1074 }
1075
1076
1077 function toggleSelectRow(sender) {
1078         var parent_row = sender.parentNode.parentNode;
1079
1080         if (sender.checked) {
1081                 if (!parent_row.className.match("Selected")) {
1082                         parent_row.className = parent_row.className + "Selected";
1083                 }
1084         } else {
1085                 if (parent_row.className.match("Selected")) {
1086                         parent_row.className = parent_row.className.replace("Selected", "");
1087                 }
1088         }
1089 }
1090
1091 function openExternalUrl(url) {
1092         var w = window.open(url);
1093 }
1094
1095 function getRelativeFeedId(list, id, direction, unread_only) {
1096         if (!id) {
1097                 if (direction == "next") {
1098                         for (i = 0; i < list.childNodes.length; i++) {
1099                                 var child = list.childNodes[i];
1100                                 if (child.id && child.id == "feedCatHolder") {
1101                                         if (child.lastChild) {
1102                                                 var cr = getRelativeFeedId(child.firstChild, id, direction, unread_only);
1103                                                 if (cr) return cr;
1104                                         }
1105                                 } else if (child.id && child.id.match("FEEDR-")) {
1106                                         return child.id.replace('FEEDR-', '');
1107                                 }
1108                         }
1109                 }
1110
1111                 // FIXME select last feed doesn't work when only unread feeds are visible
1112
1113                 if (direction == "prev") {
1114                         for (i = list.childNodes.length-1; i >= 0; i--) {
1115                                 var child = list.childNodes[i];
1116                                 if (child.id == "feedCatHolder") {
1117                                         if (child.firstChild) {
1118                                                 var cr = getRelativeFeedId(child.firstChild, id, direction);
1119                                                 if (cr) return cr;
1120                                         }
1121                                 } else if (child.id.match("FEEDR-")) {
1122
1123                                         if (getInitParam("hide_read_feeds") == 1) {
1124                                                 if (child.className != "feed") {
1125                                                         alert(child.className);
1126                                                         return child.id.replace('FEEDR-', '');
1127                                                 }
1128                                         } else {
1129                                                         return child.id.replace('FEEDR-', '');
1130                                         }
1131                                 }
1132                         }
1133                 }
1134         } else {
1135
1136                 var feed = list.ownerDocument.getElementById("FEEDR-" + id);
1137
1138                 if (getInitParam("hide_read_feeds") == 1) {
1139                         unread_only = true;
1140                 }
1141
1142                 if (direction == "next") {
1143
1144                         var e = feed;
1145
1146                         while (e) {
1147
1148                                 if (e.nextSibling) {
1149
1150                                         e = e.nextSibling;
1151
1152                                 } else if (e.parentNode.parentNode.nextSibling) {
1153
1154                                         var this_cat = e.parentNode.parentNode;
1155
1156                                         e = false;
1157
1158                                         if (this_cat && this_cat.nextSibling) {
1159                                                 while (!e && this_cat.nextSibling) {
1160                                                         this_cat = this_cat.nextSibling;
1161                                                         if (this_cat.id == "feedCatHolder") {
1162                                                                 e = this_cat.firstChild.firstChild;
1163                                                         }
1164                                                 }
1165                                         }
1166
1167                                 } else {
1168                                         e = false;
1169                            }
1170
1171                                 if (e) {
1172                                         if (!unread_only || (unread_only && e.className != "feed" &&
1173                                                         e.className.match("feed")))     {
1174                                                 return e.id.replace("FEEDR-", "");
1175                                         }
1176                                 }
1177                         }
1178
1179                 } else if (direction == "prev") {
1180
1181                         var e = feed;
1182
1183                         while (e) {
1184
1185                                 if (e.previousSibling) {
1186
1187                                         e = e.previousSibling;
1188
1189                                 } else if (e.parentNode.parentNode.previousSibling) {
1190
1191                                         var this_cat = e.parentNode.parentNode;
1192
1193                                         e = false;
1194
1195                                         if (this_cat && this_cat.previousSibling) {
1196                                                 while (!e && this_cat.previousSibling) {
1197                                                         this_cat = this_cat.previousSibling;
1198                                                         if (this_cat.id == "feedCatHolder") {
1199                                                                 e = this_cat.firstChild.lastChild;
1200                                                         }
1201                                                 }
1202                                         }
1203
1204                                 } else {
1205                                         e = false;
1206                            }
1207
1208                                 if (e) {
1209                                         if (!unread_only || (unread_only && e.className != "feed" &&
1210                                                         e.className.match("feed")))     {
1211                                                 return e.id.replace("FEEDR-", "");
1212                                         }
1213                                 }
1214                         }
1215                 }
1216         }
1217 }
1218
1219 function showBlockElement(id) {
1220         var elem = document.getElementById(id);
1221
1222         if (elem) {
1223                 elem.style.display = "block";
1224         } else {
1225                 alert("[showBlockElement] can't find element with id " + id);
1226         }
1227 }
1228
1229 function hideParentElement(e) {
1230         e.parentNode.style.display = "none";
1231 }
1232
1233 function dropboxSelect(e, v) {
1234         for (i = 0; i < e.length; i++) {
1235                 if (e[i].value == v) {
1236                         e.selectedIndex = i;
1237                         break;
1238                 }
1239         }
1240 }
1241
1242 // originally stolen from http://www.11tmr.com/11tmr.nsf/d6plinks/MWHE-695L9Z
1243 // bugfixed just a little bit :-)
1244 function getURLParam(strParamName){
1245   var strReturn = "";
1246   var strHref = window.location.href;
1247
1248   if (strHref.indexOf("#") == strHref.length-1) {
1249                 strHref = strHref.substring(0, strHref.length-1);
1250   }
1251
1252   if ( strHref.indexOf("?") > -1 ){
1253     var strQueryString = strHref.substr(strHref.indexOf("?"));
1254     var aQueryString = strQueryString.split("&");
1255     for ( var iParam = 0; iParam < aQueryString.length; iParam++ ){
1256       if (aQueryString[iParam].indexOf(strParamName + "=") > -1 ){
1257         var aParam = aQueryString[iParam].split("=");
1258         strReturn = aParam[1];
1259         break;
1260       }
1261     }
1262   }
1263   return strReturn;
1264 }
1265
1266 function leading_zero(p) {
1267         var s = String(p);
1268         if (s.length == 1) s = "0" + s;
1269         return s;
1270 }
1271
1272 function closeInfoBox(cleanup) {
1273         var box = document.getElementById('infoBox');
1274         var shadow = document.getElementById('infoBoxShadow');
1275
1276         if (shadow) {
1277                 shadow.style.display = "none";
1278         } else if (box) {
1279                 box.style.display = "none";
1280         }
1281
1282         if (cleanup) box.innerHTML = "&nbsp;";
1283
1284         enableHotkeys();
1285
1286         return false;
1287 }
1288
1289
1290 function displayDlg(id, param) {
1291
1292         if (!xmlhttp_ready(xmlhttp)) {
1293                 printLockingError();
1294                 return
1295         }
1296
1297         notify("");
1298
1299         xmlhttp.open("GET", "backend.php?op=dlg&id=" +
1300                 param_escape(id) + "&param=" + param_escape(param), true);
1301         xmlhttp.onreadystatechange=infobox_callback;
1302         xmlhttp.send(null);
1303
1304         disableHotkeys();
1305
1306         return false;
1307 }
1308
1309 function infobox_submit_callback() {
1310         if (xmlhttp.readyState == 4) {
1311                 closeInfoBox();
1312
1313                 try {
1314                         // called from prefs, reload tab
1315                         if (active_tab) {
1316                                 selectTab(active_tab, false);
1317                         }
1318                 } catch (e) { }
1319
1320                 notify(xmlhttp.responseText);
1321
1322         }
1323 }
1324
1325 function infobox_callback() {
1326         if (xmlhttp.readyState == 4) {
1327                 var box = document.getElementById('infoBox');
1328                 var shadow = document.getElementById('infoBoxShadow');
1329                 if (box) {
1330                         box.innerHTML=xmlhttp.responseText;
1331                         if (shadow) {
1332                                 shadow.style.display = "block";
1333                         } else {
1334                                 box.style.display = "block";
1335                         }
1336                 }
1337                 notify("");
1338         }
1339 }
1340
1341 function qaddFilter() {
1342
1343         if (!xmlhttp_ready(xmlhttp)) {
1344                 printLockingError();
1345                 return
1346         }
1347
1348         var form = document.forms['filter_add_form'];
1349         var reg_exp = form.reg_exp.value;
1350
1351         if (reg_exp == "") {
1352                 alert("Can't add filter: nothing to match on.");
1353                 return false;
1354         }
1355
1356         var query = Form.serialize("filter_add_form");
1357
1358         xmlhttp.open("GET", "backend.php?" + query, true);
1359         xmlhttp.onreadystatechange=infobox_submit_callback;
1360         xmlhttp.send(null);
1361
1362         return true;
1363 }
1364
1365 function toggleSubmitNotEmpty(e, submit_id) {
1366         try {
1367                 document.getElementById(submit_id).disabled = (e.value == "")
1368         } catch (e) {
1369                 exception_error("toggleSubmitNotEmpty", e);
1370         }
1371 }
1372
1373 function isValidURL(s) {
1374         return s.match("http://") != null || s.match("https://") != null;
1375 }
1376
1377 function qafAdd() {
1378
1379         if (!xmlhttp_ready(xmlhttp)) {
1380                 printLockingError();
1381                 return
1382         }
1383
1384         var form = document.forms['feed_add_form'];
1385         var feed_url = form.feed_url.value;
1386
1387         if (feed_url == "") {
1388                 alert("Can't subscribe: no feed URL given.");
1389                 return false;
1390         }
1391
1392         notify("Adding feed...", true);
1393
1394         closeInfoBox();
1395
1396         var feeds_doc = document;
1397
1398 //      feeds_doc.location.href = "backend.php?op=error&msg=Loading,%20please wait...";
1399
1400         var query = Form.serialize("feed_add_form");
1401
1402         xmlhttp.open("GET", "backend.php?" + query, true);
1403         xmlhttp.onreadystatechange=dlg_frefresh_callback;
1404         xmlhttp.send(null);
1405
1406         return false;
1407 }
1408
1409 function filterCR(e, f)
1410 {
1411      var key;
1412
1413      if(window.event)
1414           key = window.event.keyCode;     //IE
1415      else
1416           key = e.which;     //firefox
1417
1418         if (key == 13) {
1419                 if (typeof f != 'undefined') {
1420                         f();
1421                         return false;
1422                 } else {
1423                         return false;
1424                 }
1425         } else {
1426                 return true;
1427         }
1428 }
1429
1430 function getMainContext() {
1431         return this.window;
1432 }
1433
1434 function getFeedsContext() {
1435         return this.window;
1436 }
1437
1438 function getContentContext() {
1439         return this.window;
1440 }
1441
1442 function getHeadlinesContext() {
1443         return this.window;
1444 }
1445
1446 var debug_last_class = "even";
1447
1448 function debug(msg) {
1449
1450         if (debug_last_class == "even") {
1451                 debug_last_class = "odd";
1452         } else {
1453                 debug_last_class = "even";
1454         }
1455
1456         var c = document.getElementById('debug_output');
1457         if (c && c.style.display == "block") {
1458                 while (c.lastChild != 'undefined' && c.childNodes.length > 100) {
1459                         c.removeChild(c.lastChild);
1460                 }
1461
1462                 var d = new Date();
1463                 var ts = leading_zero(d.getHours()) + ":" + leading_zero(d.getMinutes()) +
1464                         ":" + leading_zero(d.getSeconds());
1465                 c.innerHTML = "<li class=\"" + debug_last_class + "\"><span class=\"debugTS\">[" + ts + "]</span> " +
1466                         msg + "</li>" + c.innerHTML;
1467         }
1468 }
1469
1470 function getInitParam(key) {
1471         return getMainContext().init_params[key];
1472 }
1473
1474 function storeInitParam(key, value, is_client) {
1475         try {
1476                 if (!is_client) {
1477                         if (getMainContext().init_params[key] != value) {
1478                                 debug("storeInitParam: " + key + " => " + value);
1479                                 //new Ajax.Request("backend.php?op=rpc&subop=storeParam&key=" +
1480                                 //      param_escape(key) + "&value=" + param_escape(value));
1481                                 var f = getMainContext().document.getElementById("backReqBox");
1482                                 f.src = "backend.php?op=rpc&subop=storeParam&key=" +
1483                                         param_escape(key) + "&value=" + param_escape(value);
1484                         }
1485                 }
1486                 getMainContext().init_params[key] = value;
1487         } catch (e) {
1488                 exception_error("storeInitParam", e);
1489         }
1490 }
1491
1492 /*
1493 function storeInitParams(params, is_client) {
1494         try {
1495                 var s = "";
1496
1497                 for (k in params) {
1498                         if (getMainContext().init_params[k] != params[k]) {
1499                                 s += k + "=" + params[k] + ";";
1500                                 getMainContext().init_params[k] = params[k];
1501                         }
1502                 }
1503
1504                 debug("storeInitParams: " + s);
1505
1506                 if (!is_client) {
1507                         new Ajax.Request("backend.php?op=rpc&subop=storeParams&str=" + s);
1508                 }
1509         } catch (e) {
1510                 exception_error("storeInitParams", e);
1511         }
1512 }*/
1513
1514 function fatalError(code, message) {
1515         try {
1516
1517                 if (code != 6) {
1518
1519                         var fe = document.getElementById("fatal_error");
1520                         var fc = document.getElementById("fatal_error_msg");
1521
1522                         fc.innerHTML = "Code " + code + ": " + message;
1523
1524                         fe.style.display = "block";
1525                 } else {
1526                         window.location.href = "login.php?rt=none";
1527                 }
1528
1529         } catch (e) {
1530                 exception_error("fatalError", e);
1531         }
1532 }
1533
1534 function getFeedName(id, is_cat) {
1535         var d = getFeedsContext().document;
1536
1537         var e;
1538
1539         if (is_cat) {
1540                 e = d.getElementById("FCATN-" + id);
1541         } else {
1542                 e = d.getElementById("FEEDN-" + id);
1543         }
1544         if (e) {
1545                 return e.innerHTML.stripTags();
1546         } else {
1547                 return null;
1548         }
1549 }
1550
1551 function viewContentUrl(url) {
1552         getContentContext().location = url;
1553 }
1554
1555 function filterDlgCheckAction(sender) {
1556
1557         try {
1558
1559                 var action = sender[sender.selectedIndex].value;
1560
1561                 var form = document.forms["filter_add_form"];
1562
1563                 if (!form) {
1564                         form = document.forms["filter_edit_form"];
1565                 }
1566
1567                 if (!form) {
1568                         debug("filterDlgCheckAction: can't find form!");
1569                         return;
1570                 }
1571
1572                 var action_param = form.action_param;
1573
1574                 if (!action_param) {
1575                         debug("filterDlgCheckAction: can't find action param!");
1576                         return;
1577                 }
1578
1579                 // if selected action supports parameters, enable params field
1580                 if (action == 4) {
1581                         action_param.disabled = false;
1582                 } else {
1583                         action_param.disabled = true;
1584                 }
1585
1586         } catch (e) {
1587                 exception_error(e, "filterDlgCheckAction");
1588         }
1589
1590 }
1591
1592 function explainError(code) {
1593         return displayDlg("explainError", code);
1594 }