functions.js

   1 var hotkeys_enabled = true;
   2
   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 exception_error(location, e) {
  11         var msg;
  12
  13         if (e.fileName) {
  14                 var base_fname = e.fileName.substring(e.fileName.lastIndexOf("/") + 1);
  15
  16                 msg = "Exception: " + e.name + ", " + e.message +
  17                         "\nFunction: " + location + "()" +
  18                         "\nLocation: " + base_fname + ":" + e.lineNumber;
  19
  20         } else {
  21                 msg = "Exception: " + e + "\nFunction: " + location + "()";
  22         }
  23
  24         debug("<b>EXCEPTION: " + msg + "</b>");
  25
  26         alert(msg);
  27 }
  28
  29 function disableHotkeys() {
  30         hotkeys_enabled = false;
  31 }
  32
  33 function enableHotkeys() {
  34         hotkeys_enabled = true;
  35 }
  36
  37 function xmlhttp_ready(obj) {
  38         return obj.readyState == 4 || obj.readyState == 0 || !obj.readyState;
  39 }
  40
  41 function notify_callback() {
  42         var container = document.getElementById('notify');
  43         if (xmlhttp.readyState == 4) {
  44                 container.innerHTML=xmlhttp.responseText;
  45         }
  46 }
  47
  48 function rpc_notify_callback() {
  49         var container = document.getElementById('notify');
  50         if (xmlhttp_rpc.readyState == 4) {
  51                 container.innerHTML=xmlhttp_rpc.responseText;
  52         }
  53 }
  54
  55 function param_escape(arg) {
  56         if (typeof encodeURIComponent != 'undefined')
  57                 return encodeURIComponent(arg);
  58         else
  59                 return escape(arg);
  60 }
  61
  62 function param_unescape(arg) {
  63         if (typeof decodeURIComponent != 'undefined')
  64                 return decodeURIComponent(arg);
  65         else
  66                 return unescape(arg);
  67 }
  68
  69 function delay(gap) {
  70         var then,now;
  71         then=new Date().getTime();
  72         now=then;
  73         while((now-then)<gap) {
  74                 now=new Date().getTime();
  75         }
  76 }
  77
  78 var notify_hide_timerid = false;
  79 var notify_last_doc = false;
  80
  81 var notify_effect = false;
  82
  83 function hide_notify() {
  84         if (notify_last_doc) {
  85                 var n = notify_last_doc.getElementById("notify");
  86                 if (browser_has_opacity()) {
  87                         if (notify_opacity >= 0) {
  88                                 notify_opacity = notify_opacity - 0.1;
  89                                 n.style.opacity = notify_opacity;
  90                                 notify_hide_timerid = window.setTimeout("hide_notify()", 20);
  91                         } else {
  92                                 n.style.display = "none";
  93                                 n.style.opacity = 1;
  94                         }
  95                 } else {
  96                         n.style.display = "none";
  97                 }
  98         }
  99 }
 100
 101 function notify_real(msg, doc, no_hide, is_err) {
 102
 103         var n = doc.getElementById("notify");
 104         var nb = doc.getElementById("notify_body");
 105
 106         if (!n || !nb) return;
 107
 108         if (notify_hide_timerid) {
 109                 window.clearTimeout(notify_hide_timerid);
 110         }
 111
 112         notify_last_doc = doc;
 113         notify_opacity = 1;
 114
 115         if (msg == "") {
 116                 if (n.style.display == "block") {
 117                         notify_hide_timerid = window.setTimeout("hide_notify()", 0);
 118                 }
 119                 return;
 120         } else {
 121                 n.style.display = "block";
 122         }
 123
 124         if (is_err) {
 125                 n.style.backgroundColor = "#ffcccc";
 126                 n.style.color = "black";
 127                 n.style.borderColor = "#ff0000";
 128         } else {
 129                 n.style.backgroundColor = "#fff7d5";
 130                 n.style.borderColor = "#d7c47a";
 131                 n.style.color = "black";
 132         }
 133
 134         nb.innerHTML = msg;
 135
 136         if (!no_hide) {
 137                 notify_hide_timerid = window.setTimeout("hide_notify()", 3000);
 138         }
 139 }
 140
 141 function p_notify(msg, no_hide, is_err) {
 142         notify_real(msg, parent.document, no_hide, is_err);
 143 }
 144
 145 function notify(msg, no_hide, is_err) {
 146         notify_real(msg, document, no_hide, is_err);
 147 }
 148
 149 function printLockingError() {
 150         notify("Please wait until operation finishes");}
 151
 152 var seq = "";
 153
 154 function hotkey_handler(e) {
 155
 156         try {
 157
 158                 var keycode;
 159
 160                 if (!hotkeys_enabled) return;
 161
 162                 if (window.event) {
 163                         keycode = window.event.keyCode;
 164                 } else if (e) {
 165                         keycode = e.which;
 166                 }
 167
 168                 if (keycode == 13 || keycode == 27) {
 169                         seq = "";
 170                 } else {
 171                         seq = seq + "" + keycode;
 172                 }
 173
 174                 var m_ctx = getMainContext();
 175                 var f_ctx = getFeedsContext();
 176                 var h_ctx = getHeadlinesContext();
 177
 178                 if (keycode == 82) { // r
 179                         return m_ctx.scheduleFeedUpdate(true);
 180                 }
 181
 182                 if (keycode == 85) { // u
 183                         if (getActiveFeedId()) {
 184                                 return f_ctx.viewfeed(getActiveFeedId(), 0, "ForceUpdate");
 185                         }
 186                 }
 187
 188                 if (keycode == 65) { // a
 189                         return m_ctx.toggleDispRead();
 190                 }
 191
 192                 var f_doc = m_ctx.frames["feeds-frame"].document;
 193                 var feedlist = f_doc.getElementById('feedList');
 194
 195                 if (keycode == 74) { // j
 196                         var feed = getActiveFeedId();
 197                         var new_feed = getRelativeFeedId(feedlist, feed, 'prev');
 198                         if (new_feed) viewfeed(new_feed, 0, '');
 199                 }
 200
 201                 if (keycode == 75) { // k
 202                         var feed = getActiveFeedId();
 203                         var new_feed = getRelativeFeedId(feedlist, feed, 'next');
 204                         if (new_feed) viewfeed(new_feed, 0, '');
 205                 }
 206
 207                 if (keycode == 78 || keycode == 40) { // n, down
 208                         return h_ctx.moveToPost('next');
 209                 }
 210
 211                 if (keycode == 80 || keycode == 38) { // p, up
 212                         return h_ctx.moveToPost('prev');
 213                 }
 214
 215                 if (document.getElementById("piggie")) {
 216
 217                         if (seq.match("807371717369")) {
 218                                 seq = "";
 219                                 localPiggieFunction(true);
 220                         } else {
 221                                 localPiggieFunction(false);
 222                         }
 223                 }
 224
 225                 if (typeof localHotkeyHandler != 'undefined') {
 226                         try {
 227                                 localHotkeyHandler(keycode);
 228                         } catch (e) {
 229                                 exception_error("hotkey_handler, local:", e);
 230                         }
 231                 }
 232         } catch (e) {
 233                 exception_error("hotkey_handler", e);
 234         }
 235 }
 236
 237 function cleanSelectedList(element) {
 238         var content = document.getElementById(element);
 239
 240         if (!document.getElementById("feedCatHolder")) {
 241                 for (i = 0; i < content.childNodes.length; i++) {
 242                         var child = content.childNodes[i];
 243                         try {
 244                                 child.className = child.className.replace("Selected", "");
 245                         } catch (e) {
 246                                 //
 247                         }
 248                 }
 249         } else {
 250                 for (i = 0; i < content.childNodes.length; i++) {
 251                         var child = content.childNodes[i];
 252                         if (child.id == "feedCatHolder") {
 253                                 parent.debug(child.id);
 254                                 var fcat = child.lastChild;
 255                                 for (j = 0; j < fcat.childNodes.length; j++) {
 256                                         var feed = fcat.childNodes[j];
 257                                         feed.className = feed.className.replace("Selected", "");
 258                                 }
 259                         }
 260                 }
 261         }
 262 }
 263
 264
 265 function cleanSelected(element) {
 266         var content = document.getElementById(element);
 267
 268         for (i = 0; i < content.rows.length; i++) {
 269                 content.rows[i].className = content.rows[i].className.replace("Selected", "");
 270         }
 271 }
 272
 273 function getVisibleUnreadHeadlines() {
 274         var content = document.getElementById("headlinesList");
 275
 276         var rows = new Array();
 277
 278         for (i = 0; i < content.rows.length; i++) {
 279                 var row_id = content.rows[i].id.replace("RROW-", "");
 280                 if (row_id.length > 0 && content.rows[i].className.match("Unread")) {
 281                                 rows.push(row_id);
 282                 }
 283         }
 284         return rows;
 285 }
 286
 287 function getVisibleHeadlineIds() {
 288
 289         var content = document.getElementById("headlinesList");
 290
 291         var rows = new Array();
 292
 293         for (i = 0; i < content.rows.length; i++) {
 294                 var row_id = content.rows[i].id.replace("RROW-", "");
 295                 if (row_id.length > 0) {
 296                                 rows.push(row_id);
 297                 }
 298         }
 299         return rows;
 300 }
 301
 302 function getFirstVisibleHeadlineId() {
 303         var rows = getVisibleHeadlineIds();
 304         return rows[0];
 305 }
 306
 307 function getLastVisibleHeadlineId() {
 308         var rows = getVisibleHeadlineIds();
 309         return rows[rows.length-1];
 310 }
 311
 312 function markHeadline(id) {
 313         var row = document.getElementById("RROW-" + id);
 314         if (row) {
 315                 var is_active = false;
 316
 317                 if (row.className.match("Active")) {
 318                         is_active = true;
 319                 }
 320                 row.className = row.className.replace("Selected", "");
 321                 row.className = row.className.replace("Active", "");
 322                 row.className = row.className.replace("Insensitive", "");
 323
 324                 if (is_active) {
 325                         row.className = row.className = "Active";
 326                 }
 327
 328                 var check = document.getElementById("RCHK-" + id);
 329
 330                 if (check) {
 331                         check.checked = true;
 332                 }
 333
 334                 row.className = row.className + "Selected";
 335
 336         }
 337 }
 338
 339 function getFeedIds() {
 340         var content = document.getElementById("feedsList");
 341
 342         var rows = new Array();
 343
 344         for (i = 0; i < content.rows.length; i++) {
 345                 var id = content.rows[i].id.replace("FEEDR-", "");
 346                 if (id.length > 0) {
 347                         rows.push(id);
 348                 }
 349         }
 350
 351         return rows;
 352 }
 353
 354 function setCookie(name, value, lifetime, path, domain, secure) {
 355
 356         var d = false;
 357
 358         if (lifetime) {
 359                 d = new Date();
 360                 d.setTime(lifetime * 1000);
 361         }
 362
 363         int_setCookie(name, value, d, path, domain, secure);
 364
 365 }
 366
 367 function int_setCookie(name, value, expires, path, domain, secure) {
 368         document.cookie= name + "=" + escape(value) +
 369                 ((expires) ? "; expires=" + expires.toGMTString() : "") +
 370                 ((path) ? "; path=" + path : "") +
 371                 ((domain) ? "; domain=" + domain : "") +
 372                 ((secure) ? "; secure" : "");
 373 }
 374
 375 function delCookie(name, path, domain) {
 376         if (getCookie(name)) {
 377                 document.cookie = name + "=" +
 378                 ((path) ? ";path=" + path : "") +
 379                 ((domain) ? ";domain=" + domain : "" ) +
 380                 ";expires=Thu, 01-Jan-1970 00:00:01 GMT";
 381         }
 382 }
 383
 384
 385 function getCookie(name) {
 386
 387         var dc = document.cookie;
 388         var prefix = name + "=";
 389         var begin = dc.indexOf("; " + prefix);
 390         if (begin == -1) {
 391             begin = dc.indexOf(prefix);
 392             if (begin != 0) return null;
 393         }
 394         else {
 395             begin += 2;
 396         }
 397         var end = document.cookie.indexOf(";", begin);
 398         if (end == -1) {
 399             end = dc.length;
 400         }
 401         return unescape(dc.substring(begin + prefix.length, end));
 402 }
 403
 404 function disableContainerChildren(id, disable, doc) {
 405
 406         if (!doc) doc = document;
 407
 408         var container = doc.getElementById(id);
 409
 410         if (!container) {
 411                 //alert("disableContainerChildren: element " + id + " not found");
 412                 return;
 413         }
 414
 415         for (var i = 0; i < container.childNodes.length; i++) {
 416                 var child = container.childNodes[i];
 417
 418                 try {
 419                         child.disabled = disable;
 420                 } catch (E) {
 421
 422                 }
 423
 424                 if (disable) {
 425                         if (child.className && child.className.match("button")) {
 426                                 child.className = "disabledButton";
 427                         }
 428                 } else {
 429                         if (child.className && child.className.match("disabledButton")) {
 430                                 child.className = "button";
 431                         }
 432                 }
 433         }
 434
 435 }
 436
 437 function gotoPreferences() {
 438         document.location.href = "prefs.php";
 439 }
 440
 441 function gotoMain() {
 442         document.location.href = "tt-rss.php";
 443 }
 444
 445 function gotoExportOpml() {
 446         document.location.href = "opml.php?op=Export";
 447 }
 448
 449 function getActiveFeedId() {
 450 //      return getCookie("ttrss_vf_actfeed");
 451         try {
 452                 debug("gAFID: " + getMainContext().active_feed_id);
 453                 return getMainContext().active_feed_id;
 454         } catch (e) {
 455                 exception_error("getActiveFeedId", e);
 456         }
 457 }
 458
 459 function setActiveFeedId(id) {
 460 //      return setCookie("ttrss_vf_actfeed", id);
 461         try {
 462                 getMainContext().active_feed_id = id;
 463         } catch (e) {
 464                 exception_error("setActiveFeedId", e);
 465         }
 466 }
 467
 468 function parse_counters(reply, scheduled_call) {
 469         try {
 470                 var f_document = getFeedsContext().document;
 471                 var title_obj = getMainContext();
 472
 473                 if (reply.firstChild && reply.firstChild.firstChild) {
 474                         debug("<b>wrong element passed to parse_counters, adjusting.</b>");
 475                         reply = reply.firstChild;
 476                 }
 477
 478                 debug("F_DOC: " + f_document + ", T_OBJ: " + title_obj);
 479
 480                 for (var l = 0; l < reply.childNodes.length; l++) {
 481                         if (!reply.childNodes[l] ||
 482                                 typeof(reply.childNodes[l].getAttribute) == "undefined") {
 483                                 // where did this come from?
 484                                 continue;
 485                         }
 486
 487                         var id = reply.childNodes[l].getAttribute("id");
 488                         var t = reply.childNodes[l].getAttribute("type");
 489                         var ctr = reply.childNodes[l].getAttribute("counter");
 490                         var error = reply.childNodes[l].getAttribute("error");
 491                         var has_img = reply.childNodes[l].getAttribute("hi");
 492                         var updated = reply.childNodes[l].getAttribute("updated");
 493
 494                         if (id == "global-unread") {
 495                                 title_obj.global_unread = ctr;
 496                                 title_obj.updateTitle();
 497                                 continue;
 498                         }
 499
 500                         if (t == "category") {
 501                                 var catctr = f_document.getElementById("FCATCTR-" + id);
 502                                 if (catctr) {
 503                                         catctr.innerHTML = "(" + ctr + " unread)";
 504                                 }
 505                                 continue;
 506                         }
 507
 508                         var feedctr = f_document.getElementById("FEEDCTR-" + id);
 509                         var feedu = f_document.getElementById("FEEDU-" + id);
 510                         var feedr = f_document.getElementById("FEEDR-" + id);
 511                         var feed_img = f_document.getElementById("FIMG-" + id);
 512                         var feedlink = f_document.getElementById("FEEDL-" + id);
 513
 514                         if (updated && feedlink) {
 515                                 if (error) {
 516                                         feedlink.title = "Error: " + error + " (" + updated + ")";
 517                                 } else {
 518                                         feedlink.title = "Updated: " + updated;
 519                                 }
 520                         }
 521
 522                         if (feedctr && feedu && feedr) {
 523
 524                                 if (feedu.innerHTML != ctr && id == getActiveFeedId() && scheduled_call) {
 525                                         var hf = title_obj.parent.frames["headlines-frame"];
 526                                         hf.location.reload(true);
 527                                 }
 528
 529                                 feedu.innerHTML = ctr;
 530
 531                                 if (error) {
 532                                         feedr.className = feedr.className.replace("feed", "error");
 533                                 } else if (id > 0) {
 534                                         feedr.className = feedr.className.replace("error", "feed");
 535                                 }
 536
 537                                 if (ctr > 0) {
 538                                         feedctr.className = "odd";
 539                                         if (!feedr.className.match("Unread")) {
 540                                                 var is_selected = feedr.className.match("Selected");
 541
 542                                                 feedr.className = feedr.className.replace("Selected", "");
 543                                                 feedr.className = feedr.className.replace("Unread", "");
 544
 545                                                 feedr.className = feedr.className + "Unread";
 546
 547                                                 if (is_selected) {
 548                                                         feedr.className = feedr.className + "Selected";
 549                                                 }
 550
 551                                         }
 552                                 } else {
 553                                         feedctr.className = "invisible";
 554                                         feedr.className = feedr.className.replace("Unread", "");
 555                                 }
 556                         }
 557                 }
 558         } catch (e) {
 559                 exception_error("parse_counters", e);
 560         }
 561 }
 562
 563 function all_counters_callback() {
 564         if (xmlhttp_rpc.readyState == 4) {
 565                 try {
 566                         if (!xmlhttp_rpc.responseXML || !xmlhttp_rpc.responseXML.firstChild) {
 567                                 notify("[all_counters_callback] backend did not return valid XML");
 568                                 return;
 569                         }
 570
 571                         var reply = xmlhttp_rpc.responseXML.firstChild;
 572
 573                         var counters = reply.firstChild;
 574
 575                         parse_counters(counters);
 576
 577                 } catch (e) {
 578                         exception_error("all_counters_callback", e);
 579                 }
 580         }
 581 }
 582
 583 function update_all_counters(feed) {
 584         if (xmlhttp_ready(xmlhttp_rpc)) {
 585                 var query = "backend.php?op=rpc&subop=getAllCounters";
 586
 587                 if (feed > 0) {
 588                         query = query + "&aid=" + feed;
 589                 }
 590
 591                 xmlhttp_rpc.open("GET", query, true);
 592                 xmlhttp_rpc.onreadystatechange=all_counters_callback;
 593                 xmlhttp_rpc.send(null);
 594         }
 595 }
 596
 597 function popupHelp(tid) {
 598         var w = window.open("backend.php?op=help&tid=" + tid,
 599                 "Popup Help",
 600                 "menubar=no,location=no,resizable=yes,scrollbars=yes,status=no");
 601 }
 602
 603 /** * @(#)isNumeric.js * * Copyright (c) 2000 by Sundar Dorai-Raj
 604   * * @author Sundar Dorai-Raj
 605   * * Email: sdoraira@vt.edu
 606   * * This program is free software; you can redistribute it and/or
 607   * * modify it under the terms of the GNU General Public License
 608   * * as published by the Free Software Foundation; either version 2
 609   * * of the License, or (at your option) any later version,
 610   * * provided that any use properly credits the author.
 611   * * This program is distributed in the hope that it will be useful,
 612   * * but WITHOUT ANY WARRANTY; without even the implied warranty of
 613   * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 614   * * GNU General Public License for more details at http://www.gnu.org * * */
 615
 616   var numbers=".0123456789";
 617   function isNumeric(x) {
 618     // is x a String or a character?
 619     if(x.length>1) {
 620       // remove negative sign
 621       x=Math.abs(x)+"";
 622       for(j=0;j<x.length;j++) {
 623         // call isNumeric recursively for each character
 624         number=isNumeric(x.substring(j,j+1));
 625         if(!number) return number;
 626       }
 627       return number;
 628     }
 629     else {
 630       // if x is number return true
 631       if(numbers.indexOf(x)>=0) return true;
 632       return false;
 633     }
 634   }
 635
 636
 637 function hideOrShowFeeds(doc, hide) {
 638
 639         if (!doc.styleSheets) return;
 640
 641         var css_rules = doc.styleSheets[0].cssRules;
 642
 643         if (!css_rules || !css_rules.length) return;
 644
 645         for (i = 0; i < css_rules.length; i++) {
 646                 var rule = css_rules[i];
 647
 648                 if (rule.selectorText == "ul.feedList li.feed") {
 649                         if (!hide) {
 650                                 rule.style.display = "block";
 651                         } else {
 652                                 rule.style.display = "none";
 653                         }
 654                 }
 655
 656         }
 657
 658 }
 659
 660 function selectTableRow(r, do_select) {
 661         r.className = r.className.replace("Selected", "");
 662
 663         if (do_select) {
 664                 r.className = r.className + "Selected";
 665         }
 666 }
 667
 668 function selectTableRowById(elem_id, check_id, do_select) {
 669
 670         try {
 671
 672                 var row = document.getElementById(elem_id);
 673
 674                 if (row) {
 675                         selectTableRow(row, do_select);
 676                 }
 677
 678                 var check = document.getElementById(check_id);
 679
 680                 if (check) {
 681                         check.checked = do_select;
 682                 }
 683         } catch (e) {
 684                 exception_error("selectTableRowById", e);
 685         }
 686 }
 687
 688 function selectTableRowsByIdPrefix(content_id, prefix, check_prefix, do_select,
 689         classcheck, reset_others) {
 690
 691         var content = document.getElementById(content_id);
 692
 693         if (!content) {
 694                 alert("[selectTableRows] Element " + content_id + " not found.");
 695                 return;
 696         }
 697
 698         for (i = 0; i < content.rows.length; i++) {
 699                 if (!classcheck || content.rows[i].className.match(classcheck)) {
 700
 701                         if (content.rows[i].id.match(prefix)) {
 702                                 selectTableRow(content.rows[i], do_select);
 703
 704                                 var row_id = content.rows[i].id.replace(prefix, "");
 705                                 var check = document.getElementById(check_prefix + row_id);
 706
 707                                 if (check) {
 708                                         check.checked = do_select;
 709                                 }
 710                         } else if (reset_others) {
 711                                 selectTableRow(content.rows[i], false);
 712
 713                                 var row_id = content.rows[i].id.replace(prefix, "");
 714                                 var check = document.getElementById(check_prefix + row_id);
 715
 716                                 if (check) {
 717                                         check.checked = false;
 718                                 }
 719
 720                         }
 721                 } else if (reset_others) {
 722                         selectTableRow(content.rows[i], false);
 723
 724                         var row_id = content.rows[i].id.replace(prefix, "");
 725                         var check = document.getElementById(check_prefix + row_id);
 726
 727                         if (check) {
 728                                 check.checked = false;
 729                         }
 730
 731                 }
 732         }
 733 }
 734
 735 function getSelectedTableRowIds(content_id, prefix) {
 736
 737         var content = document.getElementById(content_id);
 738
 739         if (!content) {
 740                 alert("[getSelectedTableRowIds] Element " + content_id + " not found.");
 741                 return;
 742         }
 743
 744         var sel_rows = new Array();
 745
 746         for (i = 0; i < content.rows.length; i++) {
 747                 if (content.rows[i].id.match(prefix) &&
 748                                 content.rows[i].className.match("Selected")) {
 749
 750                         var row_id = content.rows[i].id.replace(prefix + "-", "");
 751                         sel_rows.push(row_id);
 752                 }
 753         }
 754
 755         return sel_rows;
 756
 757 }
 758
 759 function toggleSelectRowById(sender, id) {
 760         var row = document.getElementById(id);
 761
 762         if (sender.checked) {
 763                 if (!row.className.match("Selected")) {
 764                         row.className = row.className + "Selected";
 765                 }
 766         } else {
 767                 if (row.className.match("Selected")) {
 768                         row.className = row.className.replace("Selected", "");
 769                 }
 770         }
 771 }
 772
 773 function toggleSelectListRow(sender) {
 774         var parent_row = sender.parentNode;
 775
 776         if (sender.checked) {
 777                 if (!parent_row.className.match("Selected")) {
 778                         parent_row.className = parent_row.className + "Selected";
 779                 }
 780         } else {
 781                 if (parent_row.className.match("Selected")) {
 782                         parent_row.className = parent_row.className.replace("Selected", "");
 783                 }
 784         }
 785 }
 786
 787
 788 function toggleSelectRow(sender) {
 789         var parent_row = sender.parentNode.parentNode;
 790
 791         if (sender.checked) {
 792                 if (!parent_row.className.match("Selected")) {
 793                         parent_row.className = parent_row.className + "Selected";
 794                 }
 795         } else {
 796                 if (parent_row.className.match("Selected")) {
 797                         parent_row.className = parent_row.className.replace("Selected", "");
 798                 }
 799         }
 800 }
 801
 802 function openExternalUrl(url) {
 803         var w = window.open(url);
 804 }
 805
 806 function getRelativeFeedId(list, id, direction, unread_only) {
 807         if (!id) {
 808                 if (direction == "next") {
 809                         for (i = 0; i < list.childNodes.length; i++) {
 810                                 var child = list.childNodes[i];
 811                                 if (child.id && child.id == "feedCatHolder") {
 812                                         if (child.lastChild) {
 813                                                 var cr = getRelativeFeedId(child.firstChild, id, direction);
 814                                                 if (cr) return cr;
 815                                         }
 816                                 } else if (child.id && child.id.match("FEEDR-")) {
 817                                         return child.id.replace('FEEDR-', '');
 818                                 }
 819                         }
 820                 }
 821
 822                 // FIXME select last feed doesn't work when only unread feeds are visible
 823
 824                 if (direction == "prev") {
 825                         for (i = list.childNodes.length-1; i >= 0; i--) {
 826                                 var child = list.childNodes[i];
 827                                 if (child.id == "feedCatHolder") {
 828                                         if (child.firstChild) {
 829                                                 var cr = getRelativeFeedId(child.firstChild, id, direction);
 830                                                 if (cr) return cr;
 831                                         }
 832                                 } else if (child.id.match("FEEDR-")) {
 833
 834                                         if (getInitParam("hide_read_feeds") == 1) {
 835                                                 if (child.className != "feed") {
 836                                                         alert(child.className);
 837                                                         return child.id.replace('FEEDR-', '');
 838                                                 }
 839                                         } else {
 840                                                         return child.id.replace('FEEDR-', '');
 841                                         }
 842                                 }
 843                         }
 844                 }
 845         } else {
 846
 847                 var feed = list.ownerDocument.getElementById("FEEDR-" + getActiveFeedId());
 848
 849                 if (getInitParam("hide_read_feeds") == 1) {
 850                         unread_only = true;
 851                 }
 852
 853                 if (direction == "next") {
 854
 855                         var e = feed;
 856
 857                         while (e) {
 858
 859                                 if (e.nextSibling) {
 860
 861                                         e = e.nextSibling;
 862
 863                                 } else if (e.parentNode.parentNode.nextSibling) {
 864
 865                                         var this_cat = e.parentNode.parentNode;
 866
 867                                         e = false;
 868
 869                                         if (this_cat && this_cat.nextSibling) {
 870                                                 while (!e && this_cat.nextSibling) {
 871                                                         this_cat = this_cat.nextSibling;
 872                                                         if (this_cat.id == "feedCatHolder") {
 873                                                                 e = this_cat.firstChild.firstChild;
 874                                                         }
 875                                                 }
 876                                         }
 877
 878                                 } else {
 879                                         e = false;
 880                            }
 881
 882                                 if (e) {
 883                                         if (!unread_only || (unread_only && e.className != "feed" &&
 884                                                         e.className != "error"))        {
 885                                                 return e.id.replace("FEEDR-", "");
 886                                         }
 887                                 }
 888                         }
 889
 890                 } else if (direction == "prev") {
 891
 892                         var e = feed;
 893
 894                         while (e) {
 895
 896                                 if (e.previousSibling) {
 897
 898                                         e = e.previousSibling;
 899
 900                                 } else if (e.parentNode.parentNode.previousSibling) {
 901
 902                                         var this_cat = e.parentNode.parentNode;
 903
 904                                         e = false;
 905
 906                                         if (this_cat && this_cat.previousSibling) {
 907                                                 while (!e && this_cat.previousSibling) {
 908                                                         this_cat = this_cat.previousSibling;
 909                                                         if (this_cat.id == "feedCatHolder") {
 910                                                                 e = this_cat.firstChild.lastChild;
 911                                                         }
 912                                                 }
 913                                         }
 914
 915                                 } else {
 916                                         e = false;
 917                            }
 918
 919                                 if (e) {
 920                                         if (!unread_only || (unread_only && e.className != "feed" &&
 921                                                         e.className != "error"))        {
 922                                                 return e.id.replace("FEEDR-", "");
 923                                         }
 924                                 }
 925                         }
 926                 }
 927         }
 928 }
 929
 930 function showBlockElement(id) {
 931         var elem = document.getElementById(id);
 932
 933         if (elem) {
 934                 elem.style.display = "block";
 935         } else {
 936                 alert("[showBlockElement] can't find element with id " + id);
 937         }
 938 }
 939
 940 function hideParentElement(e) {
 941         e.parentNode.style.display = "none";
 942 }
 943
 944 function dropboxSelect(e, v) {
 945         for (i = 0; i < e.length; i++) {
 946                 if (e[i].value == v) {
 947                         e.selectedIndex = i;
 948                         break;
 949                 }
 950         }
 951 }
 952
 953 // originally stolen from http://www.11tmr.com/11tmr.nsf/d6plinks/MWHE-695L9Z
 954 // bugfixed just a little bit :-)
 955 function getURLParam(strParamName){
 956   var strReturn = "";
 957   var strHref = window.location.href;
 958
 959   if (strHref.indexOf("#") == strHref.length-1) {
 960                 strHref = strHref.substring(0, strHref.length-1);
 961   }
 962
 963   if ( strHref.indexOf("?") > -1 ){
 964     var strQueryString = strHref.substr(strHref.indexOf("?"));
 965     var aQueryString = strQueryString.split("&");
 966     for ( var iParam = 0; iParam < aQueryString.length; iParam++ ){
 967       if (aQueryString[iParam].indexOf(strParamName + "=") > -1 ){
 968         var aParam = aQueryString[iParam].split("=");
 969         strReturn = aParam[1];
 970         break;
 971       }
 972     }
 973   }
 974   return strReturn;
 975 }
 976
 977 function leading_zero(p) {
 978         var s = String(p);
 979         if (s.length == 1) s = "0" + s;
 980         return s;
 981 }
 982
 983 function closeInfoBox(cleanup) {
 984         var box = document.getElementById('infoBox');
 985         var shadow = document.getElementById('infoBoxShadow');
 986
 987         if (shadow) {
 988                 shadow.style.display = "none";
 989         } else if (box) {
 990                 box.style.display = "none";
 991         }
 992
 993         if (cleanup) box.innerHTML = "&nbsp;";
 994
 995         enableHotkeys();
 996
 997 }
 998
 999
1000 function displayDlg(id, param) {
1001
1002         if (!xmlhttp_ready(xmlhttp)) {
1003                 printLockingError();
1004                 return
1005         }
1006
1007         notify("");
1008
1009         xmlhttp.open("GET", "backend.php?op=dlg&id=" +
1010                 param_escape(id) + "&param=" + param_escape(param), true);
1011         xmlhttp.onreadystatechange=infobox_callback;
1012         xmlhttp.send(null);
1013
1014         disableHotkeys();
1015
1016 }
1017
1018 function infobox_submit_callback() {
1019         if (xmlhttp.readyState == 4) {
1020                 closeInfoBox();
1021
1022                 // called from prefs, reload tab
1023                 if (active_tab) {
1024                         selectTab(active_tab, false);
1025                 }
1026
1027                 notify(xmlhttp.responseText);
1028
1029         }
1030 }
1031
1032 function infobox_callback() {
1033         if (xmlhttp.readyState == 4) {
1034                 var box = document.getElementById('infoBox');
1035                 var shadow = document.getElementById('infoBoxShadow');
1036                 if (box) {
1037                         box.innerHTML=xmlhttp.responseText;
1038                         if (shadow) {
1039                                 shadow.style.display = "block";
1040                         } else {
1041                                 box.style.display = "block";
1042                         }
1043                 }
1044         }
1045 }
1046
1047 function qaddFilter() {
1048
1049         if (!xmlhttp_ready(xmlhttp)) {
1050                 printLockingError();
1051                 return
1052         }
1053
1054         var query = Form.serialize("filter_add_form");
1055
1056         xmlhttp.open("GET", "backend.php?" + query, true);
1057         xmlhttp.onreadystatechange=infobox_submit_callback;
1058         xmlhttp.send(null);
1059
1060         return true;
1061 }
1062
1063 function toggleSubmitNotEmpty(e, submit_id) {
1064         try {
1065                 document.getElementById(submit_id).disabled = (e.value == "")
1066         } catch (e) {
1067                 exception_error("toggleSubmitNotEmpty", e);
1068         }
1069 }
1070
1071 function isValidURL(s) {
1072         return s.match("http://") != null || s.match("https://") != null;
1073 }
1074
1075 function qafAdd() {
1076
1077         if (!xmlhttp_ready(xmlhttp)) {
1078                 printLockingError();
1079                 return
1080         }
1081
1082         notify("Adding feed...");
1083
1084         closeInfoBox();
1085
1086         var feeds_doc = getFeedsContext().document;
1087
1088         feeds_doc.location.href = "backend.php?op=error&msg=Loading,%20please wait...";
1089
1090         var query = Form.serialize("feed_add_form");
1091
1092         xmlhttp.open("GET", "backend.php?" + query, true);
1093         xmlhttp.onreadystatechange=dlg_frefresh_callback;
1094         xmlhttp.send(null);
1095 }
1096
1097 function filterCR(e)
1098 {
1099      var key;
1100
1101      if(window.event)
1102           key = window.event.keyCode;     //IE
1103      else
1104           key = e.which;     //firefox
1105
1106      if(key == 13)
1107           return false;
1108      else
1109           return true;
1110 }
1111
1112 function getMainContext() {
1113         if (parent.window != window) {
1114                 return parent.window;
1115         } else {
1116                 return this.window;
1117         }
1118 }
1119
1120 function getFeedsContext() {
1121         try {
1122                 return getMainContext().frames["feeds-frame"];
1123         } catch (e) {
1124                 exception_error("getFeedsContext", e);
1125         }
1126 }
1127
1128
1129 function getHeadlinesContext() {
1130         try {
1131                 return getMainContext().frames["headlines-frame"];
1132         } catch (e) {
1133                 exception_error("getHeadlinesContext", e);
1134         }
1135 }
1136
1137 function debug(msg) {
1138         var ctx = getMainContext();
1139
1140         var c = ctx.document.getElementById('debug_output');
1141         if (c && c.style.display == "block") {
1142                 while (c.lastChild != 'undefined' && c.childNodes.length > 20) {
1143                         c.removeChild(c.lastChild);
1144                 }
1145
1146                 var d = new Date();
1147                 var ts = leading_zero(d.getHours()) + ":" + leading_zero(d.getMinutes()) +
1148                         ":" + leading_zero(d.getSeconds());
1149                 c.innerHTML = "<li>[" + ts + "] " + msg + "</li>" + c.innerHTML;
1150         }
1151 }
1152
1153 function getInitParam(key) {
1154         return getMainContext().init_params[key];
1155 }
1156
1157 // TODO: batch mode
1158 function storeInitParam(key, value, is_client) {
1159         try {
1160                 getMainContext().init_params[key] = value;
1161                 if (!is_client) {
1162                         new Ajax.Request("backend.php?op=rpc&subop=storeParam&key=" +
1163                                 param_escape(key) + "&value=" + param_escape(value));
1164                 }
1165         } catch (e) {
1166                 exception_error("storeInitParam", e);
1167         }
1168 }
1169
1170 function fatalError(code, message) {
1171         try {
1172                 var fe = document.getElementById("fatal_error");
1173                 var fc = document.getElementById("fatal_error_msg");
1174
1175                 fc.innerHTML = "Code " + code + ": " + message;
1176
1177                 fe.style.display = "block";
1178
1179         } catch (e) {
1180                 exception_error("fatalError", e);
1181         }
1182 }
1183
1184 function getFeedName(id) {
1185         var d = getFeedsContext().document;
1186         var e = d.getElementById("FEEDN-" + id);
1187         if (e) {
1188                 return e.innerHTML.stripTags();
1189         } else {
1190                 return null;
1191         }
1192 }