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 logout_callback() {
  56         var container = document.getElementById('notify');
  57         if (xmlhttp.readyState == 4) {
  58                 try {
  59                         var date = new Date();
  60                         var timestamp = Math.round(date.getTime() / 1000);
  61                         window.location.href = "tt-rss.php";
  62                 } catch (e) {
  63                         exception_error("logout_callback", e);
  64                 }
  65         }
  66 }
  67
  68 function notify_callback() {
  69         var container = document.getElementById('notify');
  70         if (xmlhttp.readyState == 4) {
  71                 container.innerHTML=xmlhttp.responseText;
  72         }
  73 }
  74
  75 function rpc_notify_callback() {
  76         var container = document.getElementById('notify');
  77         if (xmlhttp_rpc.readyState == 4) {
  78                 container.innerHTML=xmlhttp_rpc.responseText;
  79         }
  80 }
  81
  82 function param_escape(arg) {
  83         if (typeof encodeURIComponent != 'undefined')
  84                 return encodeURIComponent(arg);
  85         else
  86                 return escape(arg);
  87 }
  88
  89 function param_unescape(arg) {
  90         if (typeof decodeURIComponent != 'undefined')
  91                 return decodeURIComponent(arg);
  92         else
  93                 return unescape(arg);
  94 }
  95
  96 function delay(gap) {
  97         var then,now;
  98         then=new Date().getTime();
  99         now=then;
 100         while((now-then)<gap) {
 101                 now=new Date().getTime();
 102         }
 103 }
 104
 105 var notify_hide_timerid = false;
 106
 107 function hide_notify() {
 108         var n = document.getElementById("notify");
 109         if (n) {
 110                 n.style.display = "none";
 111         }
 112 }
 113
 114 function notify_real(msg, no_hide, n_type) {
 115
 116         var n = document.getElementById("notify");
 117         var nb = document.getElementById("notify_body");
 118
 119         if (!n || !nb) return;
 120
 121         if (notify_hide_timerid) {
 122                 window.clearTimeout(notify_hide_timerid);
 123         }
 124
 125         if (msg == "") {
 126                 if (n.style.display == "block") {
 127                         notify_hide_timerid = window.setTimeout("hide_notify()", 0);
 128                 }
 129                 return;
 130         } else {
 131                 n.style.display = "block";
 132         }
 133
 134         /* types:
 135
 136                 1 - generic
 137                 2 - progress
 138                 3 - error
 139                 4 - info
 140
 141         */
 142
 143         if (typeof __ != 'undefined') {
 144                 msg = __(msg);
 145         }
 146
 147         if (n_type == 1) {
 148                 n.className = "notify";
 149         } else if (n_type == 2) {
 150                 n.className = "notifyProgress";
 151                 msg = "<img src='images/indicator_white.gif'> " + msg;
 152         } else if (n_type == 3) {
 153                 n.className = "notifyError";
 154                 msg = "<img src='images/sign_excl.png'> " + msg;
 155         } else if (n_type == 4) {
 156                 n.className = "notifyInfo";
 157                 msg = "<img src='images/sign_info.png'> " + msg;
 158         }
 159
 160 //      msg = "<img src='images/live_com_loading.gif'> " + msg;
 161
 162         nb.innerHTML = msg;
 163
 164         if (!no_hide) {
 165                 notify_hide_timerid = window.setTimeout("hide_notify()", 3000);
 166         }
 167 }
 168
 169 function notify(msg, no_hide) {
 170         notify_real(msg, no_hide, 1);
 171 }
 172
 173 function notify_progress(msg, no_hide) {
 174         notify_real(msg, no_hide, 2);
 175 }
 176
 177 function notify_error(msg, no_hide) {
 178         notify_real(msg, no_hide, 3);
 179
 180 }
 181
 182 function notify_info(msg, no_hide) {
 183         notify_real(msg, no_hide, 4);
 184 }
 185
 186 function printLockingError() {
 187         notify_info("Please wait until operation finishes.");
 188 }
 189
 190 function hotkey_handler(e) {
 191
 192         try {
 193
 194                 var keycode;
 195                 var shift_key = false;
 196
 197                 try {
 198                         shift_key = e.shiftKey;
 199                 } catch (e) {
 200
 201                 }
 202
 203                 if (!hotkeys_enabled) return;
 204
 205                 if (window.event) {
 206                         keycode = window.event.keyCode;
 207                 } else if (e) {
 208                         keycode = e.which;
 209                 }
 210
 211                 if (keycode == 82) { // r
 212                         return scheduleFeedUpdate(true);
 213                 }
 214
 215                 if (keycode == 83) { // s
 216                         return displayDlg("search", getActiveFeedId());
 217                 }
 218
 219                 if (keycode == 85) { // u
 220                         if (getActiveFeedId()) {
 221                                 return viewfeed(getActiveFeedId(), "ForceUpdate");
 222                         }
 223                 }
 224
 225                 if (keycode == 65) { // a
 226                         return toggleDispRead();
 227                 }
 228
 229                 var feedlist = document.getElementById('feedList');
 230
 231                 if (keycode == 74) { // j
 232                         var feed = getActiveFeedId();
 233                         var new_feed = getRelativeFeedId(feedlist, feed, 'prev');
 234                         if (new_feed) viewfeed(new_feed, '');
 235                 }
 236
 237                 if (keycode == 75) { // k
 238                         var feed = getActiveFeedId();
 239                         var new_feed = getRelativeFeedId(feedlist, feed, 'next');
 240                         if (new_feed) viewfeed(new_feed, '');
 241                 }
 242
 243                 if (!is_safari() && (keycode == 78 || keycode == 40)) { // n, down
 244                         if (typeof moveToPost != 'undefined') {
 245                                 return moveToPost('next');
 246                         }
 247                 }
 248
 249                 if (!is_safari() && (keycode == 80 || keycode == 38)) { // p, up
 250                         if (typeof moveToPost != 'undefined') {
 251                                 return moveToPost('prev');
 252                         }
 253                 }
 254
 255                 if (keycode == 68 && shift_key) { // d
 256                         if (!debug_mode_enabled) {
 257                                 document.getElementById('debug_output').style.display = 'block';
 258                                 debug('debug mode activated');
 259                         } else {
 260                                 document.getElementById('debug_output').style.display = 'none';
 261                         }
 262
 263                         debug_mode_enabled = !debug_mode_enabled;
 264                 }
 265
 266                 if (keycode == 190 && shift_key) { // >
 267                         viewFeedGoPage(1);
 268                 }
 269
 270                 if (keycode == 188 && shift_key) { // <
 271                         viewFeedGoPage(-1);
 272                 }
 273
 274                 if (keycode == 191 && shift_key) { // ?
 275                         viewFeedGoPage(0);
 276                 }
 277
 278                 if (keycode == 69 && shift_key) { // e
 279                         return editFeedDlg(getActiveFeedId());
 280                 }
 281
 282                 if (keycode == 70 && shift_key) { // f
 283                         if (getActiveFeedId()) {
 284                                 return catchupCurrentFeed();
 285                         }
 286                 }
 287
 288                 if (keycode == 80 && shift_key) { // p
 289                         if (getActiveFeedId()) {
 290                                 return catchupPage();
 291                         }
 292                 }
 293
 294                 if (typeof localHotkeyHandler != 'undefined') {
 295                         try {
 296                                 return localHotkeyHandler(e);
 297                         } catch (e) {
 298                                 exception_error("hotkey_handler, local:", e);
 299                         }
 300                 }
 301
 302                 debug("KP=" + keycode);
 303         } catch (e) {
 304                 exception_error("hotkey_handler", e);
 305         }
 306 }
 307
 308 function cleanSelectedList(element) {
 309         var content = document.getElementById(element);
 310
 311         if (!document.getElementById("feedCatHolder")) {
 312                 for (i = 0; i < content.childNodes.length; i++) {
 313                         var child = content.childNodes[i];
 314                         try {
 315                                 child.className = child.className.replace("Selected", "");
 316                         } catch (e) {
 317                                 //
 318                         }
 319                 }
 320         } else {
 321                 for (i = 0; i < content.childNodes.length; i++) {
 322                         var child = content.childNodes[i];
 323                         if (child.id == "feedCatHolder") {
 324                                 debug(child.id);
 325                                 var fcat = child.lastChild;
 326                                 for (j = 0; j < fcat.childNodes.length; j++) {
 327                                         var feed = fcat.childNodes[j];
 328                                         feed.className = feed.className.replace("Selected", "");
 329                                 }
 330                         }
 331                 }
 332         }
 333 }
 334
 335
 336 function cleanSelected(element) {
 337         var content = document.getElementById(element);
 338
 339         for (i = 0; i < content.rows.length; i++) {
 340                 content.rows[i].className = content.rows[i].className.replace("Selected", "");
 341         }
 342 }
 343
 344 function getVisibleUnreadHeadlines() {
 345         var content = document.getElementById("headlinesList");
 346
 347         var rows = new Array();
 348
 349         for (i = 0; i < content.rows.length; i++) {
 350                 var row_id = content.rows[i].id.replace("RROW-", "");
 351                 if (row_id.length > 0 && content.rows[i].className.match("Unread")) {
 352                                 rows.push(row_id);
 353                 }
 354         }
 355         return rows;
 356 }
 357
 358 function getVisibleHeadlineIds() {
 359
 360         var content = document.getElementById("headlinesList");
 361
 362         var rows = new Array();
 363
 364         for (i = 0; i < content.rows.length; i++) {
 365                 var row_id = content.rows[i].id.replace("RROW-", "");
 366                 if (row_id.length > 0) {
 367                                 rows.push(row_id);
 368                 }
 369         }
 370         return rows;
 371 }
 372
 373 function getFirstVisibleHeadlineId() {
 374         var rows = getVisibleHeadlineIds();
 375         return rows[0];
 376 }
 377
 378 function getLastVisibleHeadlineId() {
 379         var rows = getVisibleHeadlineIds();
 380         return rows[rows.length-1];
 381 }
 382
 383 function markHeadline(id) {
 384         var row = document.getElementById("RROW-" + id);
 385         if (row) {
 386                 var is_active = false;
 387
 388                 if (row.className.match("Active")) {
 389                         is_active = true;
 390                 }
 391                 row.className = row.className.replace("Selected", "");
 392                 row.className = row.className.replace("Active", "");
 393                 row.className = row.className.replace("Insensitive", "");
 394
 395                 if (is_active) {
 396                         row.className = row.className = "Active";
 397                 }
 398
 399                 var check = document.getElementById("RCHK-" + id);
 400
 401                 if (check) {
 402                         check.checked = true;
 403                 }
 404
 405                 row.className = row.className + "Selected";
 406
 407         }
 408 }
 409
 410 function getFeedIds() {
 411         var content = document.getElementById("feedsList");
 412
 413         var rows = new Array();
 414
 415         for (i = 0; i < content.rows.length; i++) {
 416                 var id = content.rows[i].id.replace("FEEDR-", "");
 417                 if (id.length > 0) {
 418                         rows.push(id);
 419                 }
 420         }
 421
 422         return rows;
 423 }
 424
 425 function setCookie(name, value, lifetime, path, domain, secure) {
 426
 427         var d = false;
 428
 429         if (lifetime) {
 430                 d = new Date();
 431                 d.setTime(d.getTime() + (lifetime * 1000));
 432         }
 433
 434         debug("setCookie: " + name + " => " + value + ": " + d);
 435
 436         int_setCookie(name, value, d, path, domain, secure);
 437
 438 }
 439
 440 function int_setCookie(name, value, expires, path, domain, secure) {
 441         document.cookie= name + "=" + escape(value) +
 442                 ((expires) ? "; expires=" + expires.toGMTString() : "") +
 443                 ((path) ? "; path=" + path : "") +
 444                 ((domain) ? "; domain=" + domain : "") +
 445                 ((secure) ? "; secure" : "");
 446 }
 447
 448 function delCookie(name, path, domain) {
 449         if (getCookie(name)) {
 450                 document.cookie = name + "=" +
 451                 ((path) ? ";path=" + path : "") +
 452                 ((domain) ? ";domain=" + domain : "" ) +
 453                 ";expires=Thu, 01-Jan-1970 00:00:01 GMT";
 454         }
 455 }
 456
 457
 458 function getCookie(name) {
 459
 460         var dc = document.cookie;
 461         var prefix = name + "=";
 462         var begin = dc.indexOf("; " + prefix);
 463         if (begin == -1) {
 464             begin = dc.indexOf(prefix);
 465             if (begin != 0) return null;
 466         }
 467         else {
 468             begin += 2;
 469         }
 470         var end = document.cookie.indexOf(";", begin);
 471         if (end == -1) {
 472             end = dc.length;
 473         }
 474         return unescape(dc.substring(begin + prefix.length, end));
 475 }
 476
 477 function disableContainerChildren(id, disable, doc) {
 478
 479         if (!doc) doc = document;
 480
 481         var container = doc.getElementById(id);
 482
 483         if (!container) {
 484                 //alert("disableContainerChildren: element " + id + " not found");
 485                 return;
 486         }
 487
 488         for (var i = 0; i < container.childNodes.length; i++) {
 489                 var child = container.childNodes[i];
 490
 491                 try {
 492                         child.disabled = disable;
 493                 } catch (E) {
 494
 495                 }
 496
 497                 if (disable) {
 498                         if (child.className && child.className.match("button")) {
 499                                 child.className = "disabledButton";
 500                         }
 501                 } else {
 502                         if (child.className && child.className.match("disabledButton")) {
 503                                 child.className = "button";
 504                         }
 505                 }
 506         }
 507
 508 }
 509
 510 function gotoPreferences() {
 511         document.location.href = "prefs.php";
 512 }
 513
 514 function gotoMain() {
 515         document.location.href = "tt-rss.php";
 516 }
 517
 518 function gotoExportOpml() {
 519         document.location.href = "opml.php?op=Export";
 520 }
 521
 522 function getActiveFeedId() {
 523 //      return getCookie("ttrss_vf_actfeed");
 524         try {
 525                 debug("gAFID: " + active_feed_id);
 526                 return active_feed_id;
 527         } catch (e) {
 528                 exception_error("getActiveFeedId", e);
 529         }
 530 }
 531
 532 function activeFeedIsCat() {
 533         return active_feed_is_cat;
 534 }
 535
 536 function setActiveFeedId(id) {
 537 //      return setCookie("ttrss_vf_actfeed", id);
 538         try {
 539                 debug("sAFID(" + id + ")");
 540                 active_feed_id = id;
 541         } catch (e) {
 542                 exception_error("setActiveFeedId", e);
 543         }
 544 }
 545
 546 function parse_counters(reply, scheduled_call) {
 547         try {
 548
 549                 var feeds_found = 0;
 550
 551                 if (reply.firstChild && reply.firstChild.firstChild) {
 552                         debug("<b>wrong element passed to parse_counters, adjusting.</b>");
 553                         reply = reply.firstChild;
 554                 }
 555
 556                 for (var l = 0; l < reply.childNodes.length; l++) {
 557                         if (!reply.childNodes[l] ||
 558                                 typeof(reply.childNodes[l].getAttribute) == "undefined") {
 559                                 // where did this come from?
 560                                 continue;
 561                         }
 562
 563                         var id = reply.childNodes[l].getAttribute("id");
 564                         var t = reply.childNodes[l].getAttribute("type");
 565                         var ctr = reply.childNodes[l].getAttribute("counter");
 566                         var error = reply.childNodes[l].getAttribute("error");
 567                         var has_img = reply.childNodes[l].getAttribute("hi");
 568                         var updated = reply.childNodes[l].getAttribute("updated");
 569
 570                         if (id == "global-unread") {
 571                                 global_unread = ctr;
 572                                 updateTitle();
 573                                 continue;
 574                         }
 575
 576                         if (id == "subscribed-feeds") {
 577                                 feeds_found = ctr;
 578                                 continue;
 579                         }
 580
 581                         if (t == "category") {
 582                                 var catctr = document.getElementById("FCATCTR-" + id);
 583                                 if (catctr) {
 584                                         catctr.innerHTML = "(" + ctr + ")";
 585                                         if (ctr > 0) {
 586                                                 catctr.className = "catCtrHasUnread";
 587                                         } else {
 588                                                 catctr.className = "catCtrNoUnread";
 589                                         }
 590                                 }
 591                                 continue;
 592                         }
 593
 594                         var feedctr = document.getElementById("FEEDCTR-" + id);
 595                         var feedu = document.getElementById("FEEDU-" + id);
 596                         var feedr = document.getElementById("FEEDR-" + id);
 597                         var feed_img = document.getElementById("FIMG-" + id);
 598                         var feedlink = document.getElementById("FEEDL-" + id);
 599                         var feedupd = document.getElementById("FLUPD-" + id);
 600
 601                         if (updated && feedlink) {
 602                                 if (error) {
 603                                         feedlink.title = "Error: " + error + " (" + updated + ")";
 604                                 } else {
 605                                         feedlink.title = "Updated: " + updated;
 606                                 }
 607                         }
 608
 609                         if (updated && feedupd) {
 610                                 if (error) {
 611                                         feedupd.innerHTML = updated + " (Error)";
 612                                 } else {
 613                                         feedupd.innerHTML = updated;
 614                                 }
 615                         }
 616
 617                         if (feedctr && feedu && feedr) {
 618
 619                                 if (feedu.innerHTML != ctr && id == getActiveFeedId() && scheduled_call) {
 620                                         viewCurrentFeed();
 621                                 }
 622
 623                                 feedu.innerHTML = ctr;
 624
 625                                 if (error) {
 626                                         feedr.className = feedr.className.replace("feed", "error");
 627                                 } else if (id > 0) {
 628                                         feedr.className = feedr.className.replace("error", "feed");
 629                                 }
 630
 631                                 if (ctr > 0) {
 632                                         feedctr.className = "odd";
 633                                         if (!feedr.className.match("Unread")) {
 634                                                 var is_selected = feedr.className.match("Selected");
 635
 636                                                 feedr.className = feedr.className.replace("Selected", "");
 637                                                 feedr.className = feedr.className.replace("Unread", "");
 638
 639                                                 feedr.className = feedr.className + "Unread";
 640
 641                                                 if (is_selected) {
 642                                                         feedr.className = feedr.className + "Selected";
 643                                                 }
 644
 645                                         }
 646                                 } else {
 647                                         feedctr.className = "invisible";
 648                                         feedr.className = feedr.className.replace("Unread", "");
 649                                 }
 650                         }
 651                 }
 652
 653                 hideOrShowFeeds(document, getInitParam("hide_read_feeds") == 1);
 654
 655                 var feeds_stored = number_of_feeds;
 656
 657                 debug("Feed counters, C: " + feeds_found + ", S:" + feeds_stored);
 658
 659                 if (feeds_stored != feeds_found) {
 660                         number_of_feeds = feeds_found;
 661
 662                         if (feeds_stored != 0) {
 663                                 debug("Subscribed feed number changed, refreshing feedlist");
 664                                 setTimeout('updateFeedList(false, false)', 50);
 665                         }
 666                 }
 667
 668         } catch (e) {
 669                 exception_error("parse_counters", e);
 670         }
 671 }
 672
 673 function parse_counters_reply(xmlhttp, scheduled_call) {
 674
 675         if (!xmlhttp.responseXML) {
 676                 notify_error("Backend did not return valid XML", true);
 677                 return;
 678         }
 679
 680         var reply = xmlhttp.responseXML.firstChild;
 681
 682         if (!reply) {
 683                 notify_error("Backend did not return expected XML object", true);
 684                 updateTitle("");
 685                 return;
 686         }
 687
 688         var error_code = false;
 689         var error_msg = false;
 690
 691         if (reply.firstChild) {
 692                 error_code = reply.firstChild.getAttribute("error-code");
 693                 error_msg = reply.firstChild.getAttribute("error-msg");
 694         }
 695
 696         if (!error_code) {
 697                 error_code = reply.getAttribute("error-code");
 698                 error_msg = reply.getAttribute("error-msg");
 699         }
 700
 701         if (error_code && error_code != 0) {
 702                 debug("refetch_callback: got error code " + error_code);
 703                 return fatalError(error_code, error_msg);
 704         }
 705
 706         var counters = reply.firstChild;
 707
 708         parse_counters(counters, scheduled_call);
 709
 710         var runtime_info = counters.nextSibling;
 711
 712         parse_runtime_info(runtime_info);
 713
 714         if (getInitParam("feeds_sort_by_unread") == 1) {
 715                         resort_feedlist();
 716         }
 717
 718         hideOrShowFeeds(document, getInitParam("hide_read_feeds") == 1);
 719
 720 }
 721
 722 function all_counters_callback() {
 723         if (xmlhttp_rpc.readyState == 4) {
 724                 try {
 725 /*                      if (!xmlhttp_rpc.responseXML || !xmlhttp_rpc.responseXML.firstChild) {
 726                                 debug("[all_counters_callback] backend did not return valid XML");
 727                                 return;
 728                         }
 729
 730                         debug("in all_counters_callback : " + xmlhttp_rpc.responseXML);
 731
 732                         var reply = xmlhttp_rpc.responseXML.firstChild;
 733
 734                         var counters = reply.firstChild;
 735
 736                         parse_counters(counters);
 737
 738                         var runtime = counters.nextSibling;
 739
 740                         if (runtime) {
 741                                 parse_runtime_info(runtime);
 742                         }
 743
 744                         if (getInitParam("feeds_sort_by_unread") == 1) {
 745                                 resort_feedlist();
 746                         }
 747
 748                         hideOrShowFeeds(document, getInitParam("hide_read_feeds") == 1); */
 749
 750                         debug("in all_counters_callback");
 751
 752                         parse_counters_reply(xmlhttp_rpc);
 753
 754                 } catch (e) {
 755                         exception_error("all_counters_callback", e);
 756                 }
 757         }
 758 }
 759
 760 function get_feed_entry_unread(doc, elem) {
 761
 762         var id = elem.id.replace("FEEDR-", "");
 763
 764         if (id <= 0) {
 765                 return -1;
 766         }
 767
 768         try {
 769                 return parseInt(doc.getElementById("FEEDU-" + id).innerHTML);
 770         } catch (e) {
 771                 return -1;
 772         }
 773 }
 774
 775 function resort_category(doc, node) {
 776         debug("resort_category: " + node);
 777
 778         if (node.hasChildNodes() && node.firstChild.nextSibling != false) {
 779                 for (i = 0; i < node.childNodes.length; i++) {
 780                         if (node.childNodes[i].nodeName != "LI") { continue; }
 781
 782                         if (get_feed_entry_unread(doc, node.childNodes[i]) < 0) {
 783                                 continue;
 784                         }
 785
 786                         for (j = i+1; j < node.childNodes.length; j++) {
 787                                 if (node.childNodes[j].nodeName != "LI") { continue; }
 788
 789                                 var tmp_val = get_feed_entry_unread(doc, node.childNodes[i]);
 790                                 var cur_val = get_feed_entry_unread(doc, node.childNodes[j]);
 791
 792                                 if (cur_val > tmp_val) {
 793                                         tempnode_i = node.childNodes[i].cloneNode(true);
 794                                         tempnode_j = node.childNodes[j].cloneNode(true);
 795                                         node.replaceChild(tempnode_i, node.childNodes[j]);
 796                                         node.replaceChild(tempnode_j, node.childNodes[i]);
 797                                 }
 798                         }
 799
 800                 }
 801         }
 802
 803 }
 804
 805 function resort_feedlist() {
 806         debug("resort_feedlist");
 807
 808         var fd = document;
 809
 810         if (fd.getElementById("feedCatHolder")) {
 811
 812                 var feeds = fd.getElementById("feedList");
 813                 var child = feeds.firstChild;
 814
 815                 while (child) {
 816
 817                         if (child.id == "feedCatHolder") {
 818                                 resort_category(fd, child.firstChild);
 819                         }
 820
 821                         child = child.nextSibling;
 822                 }
 823
 824         } else {
 825                 resort_category(fd, fd.getElementById("feedList"));
 826         }
 827 }
 828
 829 function update_all_counters(feed) {
 830         if (xmlhttp_ready(xmlhttp_rpc)) {
 831                 var query = "backend.php?op=rpc&subop=getAllCounters";
 832
 833                 if (feed > 0) {
 834                         query = query + "&aid=" + feed;
 835                 }
 836
 837                 if (tagsAreDisplayed()) {
 838                         query = query + "&omode=lt";
 839                 } else {
 840                         query = query + "&omode=flc";
 841                 }
 842
 843                 debug("update_all_counters QUERY: " + query);
 844
 845                 var date = new Date();
 846                 var timestamp = Math.round(date.getTime() / 1000);
 847                 query = query + "&ts=" + timestamp
 848
 849                 xmlhttp_rpc.open("GET", query, true);
 850                 xmlhttp_rpc.onreadystatechange=all_counters_callback;
 851                 xmlhttp_rpc.send(null);
 852         }
 853 }
 854
 855 function popupHelp(tid) {
 856         var w = window.open("backend.php?op=help&tid=" + tid,
 857                 "Popup Help",
 858                 "menubar=no,location=no,resizable=yes,scrollbars=yes,status=no");
 859 }
 860
 861 /** * @(#)isNumeric.js * * Copyright (c) 2000 by Sundar Dorai-Raj
 862   * * @author Sundar Dorai-Raj
 863   * * Email: sdoraira@vt.edu
 864   * * This program is free software; you can redistribute it and/or
 865   * * modify it under the terms of the GNU General Public License
 866   * * as published by the Free Software Foundation; either version 2
 867   * * of the License, or (at your option) any later version,
 868   * * provided that any use properly credits the author.
 869   * * This program is distributed in the hope that it will be useful,
 870   * * but WITHOUT ANY WARRANTY; without even the implied warranty of
 871   * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 872   * * GNU General Public License for more details at http://www.gnu.org * * */
 873
 874   var numbers=".0123456789";
 875   function isNumeric(x) {
 876     // is x a String or a character?
 877     if(x.length>1) {
 878       // remove negative sign
 879       x=Math.abs(x)+"";
 880       for(j=0;j<x.length;j++) {
 881         // call isNumeric recursively for each character
 882         number=isNumeric(x.substring(j,j+1));
 883         if(!number) return number;
 884       }
 885       return number;
 886     }
 887     else {
 888       // if x is number return true
 889       if(numbers.indexOf(x)>=0) return true;
 890       return false;
 891     }
 892   }
 893
 894
 895 function hideOrShowFeeds(doc, hide) {
 896
 897         debug("hideOrShowFeeds: " + doc + ", " + hide);
 898
 899         var fd = document;
 900
 901         var list = fd.getElementById("feedList");
 902
 903         if (fd.getElementById("feedCatHolder")) {
 904
 905                 var feeds = fd.getElementById("feedList");
 906                 var child = feeds.firstChild;
 907
 908                 while (child) {
 909
 910                         if (child.id == "feedCatHolder") {
 911                                 hideOrShowFeedsCategory(fd, child.firstChild, hide, child.previousSibling);
 912                         }
 913
 914                         child = child.nextSibling;
 915                 }
 916
 917         } else {
 918                 hideOrShowFeedsCategory(fd, fd.getElementById("feedList"), hide);
 919         }
 920 }
 921
 922 function hideOrShowFeedsCategory(doc, node, hide, cat_node) {
 923
 924 //      debug("hideOrShowFeedsCategory: " + node + " (" + hide + ")");
 925
 926         var cat_unread = 0;
 927
 928         if (!node) {
 929                 debug("hideOrShowFeeds: passed node is null, aborting");
 930                 return;
 931         }
 932
 933         if (node.hasChildNodes() && node.firstChild.nextSibling != false) {
 934                 for (i = 0; i < node.childNodes.length; i++) {
 935                         if (node.childNodes[i].nodeName != "LI") { continue; }
 936
 937                         if (node.childNodes[i].style != undefined) {
 938
 939                                 var has_unread = (node.childNodes[i].className != "feed");
 940
 941         //                      debug(node.childNodes[i].id + " --> " + has_unread);
 942
 943                                 if (hide && !has_unread) {
 944                                         node.childNodes[i].style.display = "none";
 945                                 }
 946
 947                                 if (!hide) {
 948                                         node.childNodes[i].style.display = "list-item";
 949                                 }
 950
 951                                 if (has_unread) {
 952                                         node.childNodes[i].style.display = "list-item";
 953                                         cat_unread++;
 954                                 }
 955                         }
 956                 }
 957         }
 958
 959         if (cat_unread == 0) {
 960                 if (cat_node.style == undefined) {
 961                         debug("ERROR: supplied cat_node " + cat_node +
 962                                 " has no styles. WTF?");
 963                         return;
 964                 }
 965                 if (hide) {
 966                         cat_node.style.display = "none";
 967                 } else {
 968                         cat_node.style.display = "list-item";
 969                 }
 970         } else {
 971                 try {
 972                         cat_node.style.display = "list-item";
 973                 } catch (e) {
 974                         debug(e);
 975                 }
 976         }
 977
 978 //      debug("unread for category: " + cat_unread);
 979 }
 980
 981 function selectTableRow(r, do_select) {
 982         r.className = r.className.replace("Selected", "");
 983
 984         if (do_select) {
 985                 r.className = r.className + "Selected";
 986         }
 987 }
 988
 989 function selectTableRowById(elem_id, check_id, do_select) {
 990
 991         try {
 992
 993                 var row = document.getElementById(elem_id);
 994
 995                 if (row) {
 996                         selectTableRow(row, do_select);
 997                 }
 998
 999                 var check = document.getElementById(check_id);
1000
1001                 if (check) {
1002                         check.checked = do_select;
1003                 }
1004         } catch (e) {
1005                 exception_error("selectTableRowById", e);
1006         }
1007 }
1008
1009 function selectTableRowsByIdPrefix(content_id, prefix, check_prefix, do_select,
1010         classcheck, reset_others) {
1011
1012         var content = document.getElementById(content_id);
1013
1014         if (!content) {
1015                 alert("[selectTableRows] Element " + content_id + " not found.");
1016                 return;
1017         }
1018
1019         for (i = 0; i < content.rows.length; i++) {
1020                 if (!classcheck || content.rows[i].className.match(classcheck)) {
1021
1022                         if (content.rows[i].id.match(prefix)) {
1023                                 selectTableRow(content.rows[i], do_select);
1024
1025                                 var row_id = content.rows[i].id.replace(prefix, "");
1026                                 var check = document.getElementById(check_prefix + row_id);
1027
1028                                 if (check) {
1029                                         check.checked = do_select;
1030                                 }
1031                         } else if (reset_others) {
1032                                 selectTableRow(content.rows[i], false);
1033
1034                                 var row_id = content.rows[i].id.replace(prefix, "");
1035                                 var check = document.getElementById(check_prefix + row_id);
1036
1037                                 if (check) {
1038                                         check.checked = false;
1039                                 }
1040
1041                         }
1042                 } else if (reset_others) {
1043                         selectTableRow(content.rows[i], false);
1044
1045                         var row_id = content.rows[i].id.replace(prefix, "");
1046                         var check = document.getElementById(check_prefix + row_id);
1047
1048                         if (check) {
1049                                 check.checked = false;
1050                         }
1051
1052                 }
1053         }
1054 }
1055
1056 function getSelectedTableRowIds(content_id, prefix) {
1057
1058         var content = document.getElementById(content_id);
1059
1060         if (!content) {
1061                 alert("[getSelectedTableRowIds] Element " + content_id + " not found.");
1062                 return;
1063         }
1064
1065         var sel_rows = new Array();
1066
1067         for (i = 0; i < content.rows.length; i++) {
1068                 if (content.rows[i].id.match(prefix) &&
1069                                 content.rows[i].className.match("Selected")) {
1070
1071                         var row_id = content.rows[i].id.replace(prefix + "-", "");
1072                         sel_rows.push(row_id);
1073                 }
1074         }
1075
1076         return sel_rows;
1077
1078 }
1079
1080 function toggleSelectRowById(sender, id) {
1081         var row = document.getElementById(id);
1082
1083         if (sender.checked) {
1084                 if (!row.className.match("Selected")) {
1085                         row.className = row.className + "Selected";
1086                 }
1087         } else {
1088                 if (row.className.match("Selected")) {
1089                         row.className = row.className.replace("Selected", "");
1090                 }
1091         }
1092 }
1093
1094 function toggleSelectListRow(sender) {
1095         var parent_row = sender.parentNode;
1096
1097         if (sender.checked) {
1098                 if (!parent_row.className.match("Selected")) {
1099                         parent_row.className = parent_row.className + "Selected";
1100                 }
1101         } else {
1102                 if (parent_row.className.match("Selected")) {
1103                         parent_row.className = parent_row.className.replace("Selected", "");
1104                 }
1105         }
1106 }
1107
1108
1109 function toggleSelectRow(sender) {
1110         var parent_row = sender.parentNode.parentNode;
1111
1112         if (sender.checked) {
1113                 if (!parent_row.className.match("Selected")) {
1114                         parent_row.className = parent_row.className + "Selected";
1115                 }
1116         } else {
1117                 if (parent_row.className.match("Selected")) {
1118                         parent_row.className = parent_row.className.replace("Selected", "");
1119                 }
1120         }
1121 }
1122
1123 function openExternalUrl(url) {
1124         var w = window.open(url);
1125 }
1126
1127 function getRelativeFeedId(list, id, direction, unread_only) {
1128         if (!id) {
1129                 if (direction == "next") {
1130                         for (i = 0; i < list.childNodes.length; i++) {
1131                                 var child = list.childNodes[i];
1132                                 if (child.id && child.id == "feedCatHolder") {
1133                                         if (child.lastChild) {
1134                                                 var cr = getRelativeFeedId(child.firstChild, id, direction, unread_only);
1135                                                 if (cr) return cr;
1136                                         }
1137                                 } else if (child.id && child.id.match("FEEDR-")) {
1138                                         return child.id.replace('FEEDR-', '');
1139                                 }
1140                         }
1141                 }
1142
1143                 // FIXME select last feed doesn't work when only unread feeds are visible
1144
1145                 if (direction == "prev") {
1146                         for (i = list.childNodes.length-1; i >= 0; i--) {
1147                                 var child = list.childNodes[i];
1148                                 if (child.id == "feedCatHolder") {
1149                                         if (child.firstChild) {
1150                                                 var cr = getRelativeFeedId(child.firstChild, id, direction);
1151                                                 if (cr) return cr;
1152                                         }
1153                                 } else if (child.id.match("FEEDR-")) {
1154
1155                                         if (getInitParam("hide_read_feeds") == 1) {
1156                                                 if (child.className != "feed") {
1157                                                         alert(child.className);
1158                                                         return child.id.replace('FEEDR-', '');
1159                                                 }
1160                                         } else {
1161                                                         return child.id.replace('FEEDR-', '');
1162                                         }
1163                                 }
1164                         }
1165                 }
1166         } else {
1167
1168                 var feed = list.ownerDocument.getElementById("FEEDR-" + id);
1169
1170                 if (getInitParam("hide_read_feeds") == 1) {
1171                         unread_only = true;
1172                 }
1173
1174                 if (direction == "next") {
1175
1176                         var e = feed;
1177
1178                         while (e) {
1179
1180                                 if (e.nextSibling) {
1181
1182                                         e = e.nextSibling;
1183
1184                                 } else if (e.parentNode.parentNode.nextSibling) {
1185
1186                                         var this_cat = e.parentNode.parentNode;
1187
1188                                         e = false;
1189
1190                                         if (this_cat && this_cat.nextSibling) {
1191                                                 while (!e && this_cat.nextSibling) {
1192                                                         this_cat = this_cat.nextSibling;
1193                                                         if (this_cat.id == "feedCatHolder") {
1194                                                                 e = this_cat.firstChild.firstChild;
1195                                                         }
1196                                                 }
1197                                         }
1198
1199                                 } else {
1200                                         e = false;
1201                            }
1202
1203                                 if (e) {
1204                                         if (!unread_only || (unread_only && e.className != "feed" &&
1205                                                         e.className.match("feed")))     {
1206                                                 return e.id.replace("FEEDR-", "");
1207                                         }
1208                                 }
1209                         }
1210
1211                 } else if (direction == "prev") {
1212
1213                         var e = feed;
1214
1215                         while (e) {
1216
1217                                 if (e.previousSibling) {
1218
1219                                         e = e.previousSibling;
1220
1221                                 } else if (e.parentNode.parentNode.previousSibling) {
1222
1223                                         var this_cat = e.parentNode.parentNode;
1224
1225                                         e = false;
1226
1227                                         if (this_cat && this_cat.previousSibling) {
1228                                                 while (!e && this_cat.previousSibling) {
1229                                                         this_cat = this_cat.previousSibling;
1230                                                         if (this_cat.id == "feedCatHolder") {
1231                                                                 e = this_cat.firstChild.lastChild;
1232                                                         }
1233                                                 }
1234                                         }
1235
1236                                 } else {
1237                                         e = false;
1238                            }
1239
1240                                 if (e) {
1241                                         if (!unread_only || (unread_only && e.className != "feed" &&
1242                                                         e.className.match("feed")))     {
1243                                                 return e.id.replace("FEEDR-", "");
1244                                         }
1245                                 }
1246                         }
1247                 }
1248         }
1249 }
1250
1251 function showBlockElement(id) {
1252         var elem = document.getElementById(id);
1253
1254         if (elem) {
1255                 elem.style.display = "block";
1256         } else {
1257                 alert("[showBlockElement] can't find element with id " + id);
1258         }
1259 }
1260
1261 function hideParentElement(e) {
1262         e.parentNode.style.display = "none";
1263 }
1264
1265 function dropboxSelect(e, v) {
1266         for (i = 0; i < e.length; i++) {
1267                 if (e[i].value == v) {
1268                         e.selectedIndex = i;
1269                         break;
1270                 }
1271         }
1272 }
1273
1274 // originally stolen from http://www.11tmr.com/11tmr.nsf/d6plinks/MWHE-695L9Z
1275 // bugfixed just a little bit :-)
1276 function getURLParam(strParamName){
1277   var strReturn = "";
1278   var strHref = window.location.href;
1279
1280   if (strHref.indexOf("#") == strHref.length-1) {
1281                 strHref = strHref.substring(0, strHref.length-1);
1282   }
1283
1284   if ( strHref.indexOf("?") > -1 ){
1285     var strQueryString = strHref.substr(strHref.indexOf("?"));
1286     var aQueryString = strQueryString.split("&");
1287     for ( var iParam = 0; iParam < aQueryString.length; iParam++ ){
1288       if (aQueryString[iParam].indexOf(strParamName + "=") > -1 ){
1289         var aParam = aQueryString[iParam].split("=");
1290         strReturn = aParam[1];
1291         break;
1292       }
1293     }
1294   }
1295   return strReturn;
1296 }
1297
1298 function leading_zero(p) {
1299         var s = String(p);
1300         if (s.length == 1) s = "0" + s;
1301         return s;
1302 }
1303
1304 function closeInfoBox(cleanup) {
1305         var box = document.getElementById('infoBox');
1306         var shadow = document.getElementById('infoBoxShadow');
1307
1308         if (shadow) {
1309                 shadow.style.display = "none";
1310         } else if (box) {
1311                 box.style.display = "none";
1312         }
1313
1314         if (cleanup) box.innerHTML = "&nbsp;";
1315
1316         enableHotkeys();
1317
1318         return false;
1319 }
1320
1321
1322 function displayDlg(id, param) {
1323
1324         if (!xmlhttp_ready(xmlhttp)) {
1325                 printLockingError();
1326                 return
1327         }
1328
1329         notify_progress("Loading, please wait...");
1330
1331         xmlhttp.open("GET", "backend.php?op=dlg&id=" +
1332                 param_escape(id) + "&param=" + param_escape(param), true);
1333         xmlhttp.onreadystatechange=infobox_callback;
1334         xmlhttp.send(null);
1335
1336         disableHotkeys();
1337
1338         return false;
1339 }
1340
1341 function infobox_submit_callback() {
1342         if (xmlhttp.readyState == 4) {
1343                 closeInfoBox();
1344
1345                 try {
1346                         // called from prefs, reload tab
1347                         if (active_tab) {
1348                                 selectTab(active_tab, false);
1349                         }
1350                 } catch (e) { }
1351
1352                 if (xmlhttp.responseText) {
1353                         notify_info(xmlhttp.responseText);
1354                 }
1355
1356         }
1357 }
1358
1359 function infobox_callback() {
1360         if (xmlhttp.readyState == 4) {
1361                 var box = document.getElementById('infoBox');
1362                 var shadow = document.getElementById('infoBoxShadow');
1363                 if (box) {
1364                         box.innerHTML=xmlhttp.responseText;
1365                         if (shadow) {
1366                                 shadow.style.display = "block";
1367                         } else {
1368                                 box.style.display = "block";
1369                         }
1370                 }
1371                 notify("");
1372         }
1373 }
1374
1375 function addFilter() {
1376
1377         if (!xmlhttp_ready(xmlhttp)) {
1378                 printLockingError();
1379                 return
1380         }
1381
1382         var form = document.forms['filter_add_form'];
1383         var reg_exp = form.reg_exp.value;
1384
1385         if (reg_exp == "") {
1386                 alert("Can't add filter: nothing to match on.");
1387                 return false;
1388         }
1389
1390         var query = Form.serialize("filter_add_form");
1391
1392         xmlhttp.open("GET", "backend.php?" + query, true);
1393         xmlhttp.onreadystatechange=infobox_submit_callback;
1394         xmlhttp.send(null);
1395
1396         return true;
1397 }
1398
1399 function toggleSubmitNotEmpty(e, submit_id) {
1400         try {
1401                 document.getElementById(submit_id).disabled = (e.value == "")
1402         } catch (e) {
1403                 exception_error("toggleSubmitNotEmpty", e);
1404         }
1405 }
1406
1407 function isValidURL(s) {
1408         return s.match("http://") != null || s.match("https://") != null || s.match("feed://") != null;
1409 }
1410
1411 function qaddFeed() {
1412
1413         if (!xmlhttp_ready(xmlhttp)) {
1414                 printLockingError();
1415                 return
1416         }
1417
1418         var form = document.forms['feed_add_form'];
1419         var feed_url = form.feed_url.value;
1420
1421         if (feed_url == "") {
1422                 alert("Can't subscribe: no feed URL given.");
1423                 return false;
1424         }
1425
1426         notify_progress("Adding feed...");
1427
1428         closeInfoBox();
1429
1430         var feeds_doc = document;
1431
1432 //      feeds_doc.location.href = "backend.php?op=error&msg=Loading,%20please wait...";
1433
1434         var query = Form.serialize("feed_add_form");
1435
1436         xmlhttp.open("GET", "backend.php?" + query, true);
1437         xmlhttp.onreadystatechange=dlg_frefresh_callback;
1438         xmlhttp.send(null);
1439
1440         return false;
1441 }
1442
1443 function filterCR(e, f)
1444 {
1445      var key;
1446
1447      if(window.event)
1448           key = window.event.keyCode;     //IE
1449      else
1450           key = e.which;     //firefox
1451
1452         if (key == 13) {
1453                 if (typeof f != 'undefined') {
1454                         f();
1455                         return false;
1456                 } else {
1457                         return false;
1458                 }
1459         } else {
1460                 return true;
1461         }
1462 }
1463
1464 function getMainContext() {
1465         return this.window;
1466 }
1467
1468 function getFeedsContext() {
1469         return this.window;
1470 }
1471
1472 function getContentContext() {
1473         return this.window;
1474 }
1475
1476 function getHeadlinesContext() {
1477         return this.window;
1478 }
1479
1480 var debug_last_class = "even";
1481
1482 function debug(msg) {
1483
1484         if (debug_last_class == "even") {
1485                 debug_last_class = "odd";
1486         } else {
1487                 debug_last_class = "even";
1488         }
1489
1490         var c = document.getElementById('debug_output');
1491         if (c && c.style.display == "block") {
1492                 while (c.lastChild != 'undefined' && c.childNodes.length > 100) {
1493                         c.removeChild(c.lastChild);
1494                 }
1495
1496                 var d = new Date();
1497                 var ts = leading_zero(d.getHours()) + ":" + leading_zero(d.getMinutes()) +
1498                         ":" + leading_zero(d.getSeconds());
1499                 c.innerHTML = "<li class=\"" + debug_last_class + "\"><span class=\"debugTS\">[" + ts + "]</span> " +
1500                         msg + "</li>" + c.innerHTML;
1501         }
1502 }
1503
1504 function getInitParam(key) {
1505         return init_params[key];
1506 }
1507
1508 function storeInitParam(key, value) {
1509         debug("<b>storeInitParam is OBSOLETE: " + key + " => " + value + "</b>");
1510 }
1511
1512 function fatalError(code, message) {
1513         try {
1514
1515                 if (code == 6) {
1516                         window.location.href = "tt-rss.php";
1517                 } else if (code == 5) {
1518                         window.location.href = "update.php";
1519                 } else {
1520                         var fe = document.getElementById("fatal_error");
1521                         var fc = document.getElementById("fatal_error_msg");
1522
1523                         if (message == "") message = "Unknown error";
1524
1525                         fc.innerHTML = "<img src='images/sign_excl.png'> " + message + " (Code " + code + ")";
1526
1527                         fe.style.display = "block";
1528                 }
1529
1530         } catch (e) {
1531                 exception_error("fatalError", e);
1532         }
1533 }
1534
1535 function getFeedName(id, is_cat) {
1536         var d = getFeedsContext().document;
1537
1538         var e;
1539
1540         if (is_cat) {
1541                 e = d.getElementById("FCATN-" + id);
1542         } else {
1543                 e = d.getElementById("FEEDN-" + id);
1544         }
1545         if (e) {
1546                 return e.innerHTML.stripTags();
1547         } else {
1548                 return null;
1549         }
1550 }
1551
1552 function viewContentUrl(url) {
1553         getContentContext().location = url;
1554 }
1555
1556 function filterDlgCheckAction(sender) {
1557
1558         try {
1559
1560                 var action = sender[sender.selectedIndex].value;
1561
1562                 var form = document.forms["filter_add_form"];
1563
1564                 if (!form) {
1565                         form = document.forms["filter_edit_form"];
1566                 }
1567
1568                 if (!form) {
1569                         debug("filterDlgCheckAction: can't find form!");
1570                         return;
1571                 }
1572
1573                 var action_param = form.action_param;
1574
1575                 if (!action_param) {
1576                         debug("filterDlgCheckAction: can't find action param!");
1577                         return;
1578                 }
1579
1580                 // if selected action supports parameters, enable params field
1581                 if (action == 4) {
1582                         action_param.disabled = false;
1583                 } else {
1584                         action_param.disabled = true;
1585                 }
1586
1587         } catch (e) {
1588                 exception_error(e, "filterDlgCheckAction");
1589         }
1590
1591 }
1592
1593 function explainError(code) {
1594         return displayDlg("explainError", code);
1595 }
1596
1597 function logoutUser() {
1598         try {
1599                 if (xmlhttp_ready(xmlhttp_rpc)) {
1600
1601                         notify_progress("Logging out, please wait...", true);
1602
1603                         xmlhttp_rpc.open("GET", "backend.php?op=rpc&subop=logout", true);
1604                         xmlhttp_rpc.onreadystatechange=logout_callback;
1605                         xmlhttp_rpc.send(null);
1606                 } else {
1607                         printLockingError();
1608                 }
1609         } catch (e) {
1610                 exception_error("logoutUser", e);
1611         }
1612 }