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                                 debug("[all_counters_callback] backend did not return valid XML");
 568                                 return;
 569                         }
 570
 571                         debug("in all_counters_callback");
 572
 573                         var reply = xmlhttp_rpc.responseXML.firstChild;
 574
 575                         var counters = reply.firstChild;
 576
 577                         parse_counters(counters);
 578
 579                         var runtime = counters.nextSibling;
 580
 581                         if (runtime) {
 582                                 getMainContext().parse_runtime_info(runtime);
 583                         }
 584
 585                         if (getInitParam("feeds_sort_by_unread") == 1) {
 586                                 resort_feedlist();
 587                         }
 588
 589                 } catch (e) {
 590                         exception_error("all_counters_callback", e);
 591                 }
 592         }
 593 }
 594
 595 function get_feed_entry_unread(doc, elem) {
 596
 597         var id = elem.id.replace("FEEDR-", "");
 598
 599         if (id <= 0) {
 600                 return -1;
 601         }
 602
 603         try {
 604                 return parseInt(doc.getElementById("FEEDU-" + id).innerHTML);
 605         } catch (e) {
 606                 return -1;
 607         }
 608 }
 609
 610 function resort_category(doc, node) {
 611         debug("resort_category: " + node);
 612
 613         if (node.hasChildNodes() && node.firstChild.nextSibling != false) {
 614                 for (i = 0; i < node.childNodes.length; i++) {
 615                         if (node.childNodes[i].nodeName != "LI") { continue; }
 616
 617                         if (get_feed_entry_unread(doc, node.childNodes[i]) < 0) {
 618                                 continue;
 619                         }
 620
 621                         for (j = i+1; j < node.childNodes.length; j++) {
 622                                 if (node.childNodes[j].nodeName != "LI") { continue; }
 623
 624                                 var tmp_val = get_feed_entry_unread(doc, node.childNodes[i]);
 625                                 var cur_val = get_feed_entry_unread(doc, node.childNodes[j]);
 626
 627                                 if (cur_val > tmp_val) {
 628                                         tempnode_i = node.childNodes[i].cloneNode(true);
 629                                         tempnode_j = node.childNodes[j].cloneNode(true);
 630                                         node.replaceChild(tempnode_i, node.childNodes[j]);
 631                                         node.replaceChild(tempnode_j, node.childNodes[i]);
 632                                 }
 633                         }
 634
 635                 }
 636         }
 637
 638 }
 639
 640 function resort_feedlist() {
 641         debug("resort_feedlist");
 642
 643         var fd = getFeedsContext().document;
 644
 645         if (fd.getElementById("feedCatHolder")) {
 646
 647                 var feeds = fd.getElementById("feedList");
 648                 var child = feeds.firstChild;
 649
 650                 while (child) {
 651
 652                         if (child.id == "feedCatHolder") {
 653                                 resort_category(fd, child.firstChild);
 654                         }
 655
 656                         child = child.nextSibling;
 657                 }
 658
 659         } else {
 660                 resort_category(fd, fd.getElementById("feedList"));
 661         }
 662 }
 663
 664 function update_all_counters(feed) {
 665         if (xmlhttp_ready(xmlhttp_rpc)) {
 666                 var query = "backend.php?op=rpc&subop=getAllCounters";
 667
 668                 if (feed > 0) {
 669                         query = query + "&aid=" + feed;
 670                 }
 671
 672                 xmlhttp_rpc.open("GET", query, true);
 673                 xmlhttp_rpc.onreadystatechange=all_counters_callback;
 674                 xmlhttp_rpc.send(null);
 675         }
 676 }
 677
 678 function popupHelp(tid) {
 679         var w = window.open("backend.php?op=help&tid=" + tid,
 680                 "Popup Help",
 681                 "menubar=no,location=no,resizable=yes,scrollbars=yes,status=no");
 682 }
 683
 684 /** * @(#)isNumeric.js * * Copyright (c) 2000 by Sundar Dorai-Raj
 685   * * @author Sundar Dorai-Raj
 686   * * Email: sdoraira@vt.edu
 687   * * This program is free software; you can redistribute it and/or
 688   * * modify it under the terms of the GNU General Public License
 689   * * as published by the Free Software Foundation; either version 2
 690   * * of the License, or (at your option) any later version,
 691   * * provided that any use properly credits the author.
 692   * * This program is distributed in the hope that it will be useful,
 693   * * but WITHOUT ANY WARRANTY; without even the implied warranty of
 694   * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 695   * * GNU General Public License for more details at http://www.gnu.org * * */
 696
 697   var numbers=".0123456789";
 698   function isNumeric(x) {
 699     // is x a String or a character?
 700     if(x.length>1) {
 701       // remove negative sign
 702       x=Math.abs(x)+"";
 703       for(j=0;j<x.length;j++) {
 704         // call isNumeric recursively for each character
 705         number=isNumeric(x.substring(j,j+1));
 706         if(!number) return number;
 707       }
 708       return number;
 709     }
 710     else {
 711       // if x is number return true
 712       if(numbers.indexOf(x)>=0) return true;
 713       return false;
 714     }
 715   }
 716
 717
 718 function hideOrShowFeeds(doc, hide) {
 719
 720         if (!doc.styleSheets) return;
 721
 722         var css_rules = doc.styleSheets[0].cssRules;
 723
 724         if (!css_rules || !css_rules.length) return;
 725
 726         for (i = 0; i < css_rules.length; i++) {
 727                 var rule = css_rules[i];
 728
 729                 if (rule.selectorText == "ul.feedList li.feed") {
 730                         if (!hide) {
 731                                 rule.style.display = "block";
 732                         } else {
 733                                 rule.style.display = "none";
 734                         }
 735                 }
 736
 737         }
 738
 739 }
 740
 741 function selectTableRow(r, do_select) {
 742         r.className = r.className.replace("Selected", "");
 743
 744         if (do_select) {
 745                 r.className = r.className + "Selected";
 746         }
 747 }
 748
 749 function selectTableRowById(elem_id, check_id, do_select) {
 750
 751         try {
 752
 753                 var row = document.getElementById(elem_id);
 754
 755                 if (row) {
 756                         selectTableRow(row, do_select);
 757                 }
 758
 759                 var check = document.getElementById(check_id);
 760
 761                 if (check) {
 762                         check.checked = do_select;
 763                 }
 764         } catch (e) {
 765                 exception_error("selectTableRowById", e);
 766         }
 767 }
 768
 769 function selectTableRowsByIdPrefix(content_id, prefix, check_prefix, do_select,
 770         classcheck, reset_others) {
 771
 772         var content = document.getElementById(content_id);
 773
 774         if (!content) {
 775                 alert("[selectTableRows] Element " + content_id + " not found.");
 776                 return;
 777         }
 778
 779         for (i = 0; i < content.rows.length; i++) {
 780                 if (!classcheck || content.rows[i].className.match(classcheck)) {
 781
 782                         if (content.rows[i].id.match(prefix)) {
 783                                 selectTableRow(content.rows[i], do_select);
 784
 785                                 var row_id = content.rows[i].id.replace(prefix, "");
 786                                 var check = document.getElementById(check_prefix + row_id);
 787
 788                                 if (check) {
 789                                         check.checked = do_select;
 790                                 }
 791                         } else if (reset_others) {
 792                                 selectTableRow(content.rows[i], false);
 793
 794                                 var row_id = content.rows[i].id.replace(prefix, "");
 795                                 var check = document.getElementById(check_prefix + row_id);
 796
 797                                 if (check) {
 798                                         check.checked = false;
 799                                 }
 800
 801                         }
 802                 } else if (reset_others) {
 803                         selectTableRow(content.rows[i], false);
 804
 805                         var row_id = content.rows[i].id.replace(prefix, "");
 806                         var check = document.getElementById(check_prefix + row_id);
 807
 808                         if (check) {
 809                                 check.checked = false;
 810                         }
 811
 812                 }
 813         }
 814 }
 815
 816 function getSelectedTableRowIds(content_id, prefix) {
 817
 818         var content = document.getElementById(content_id);
 819
 820         if (!content) {
 821                 alert("[getSelectedTableRowIds] Element " + content_id + " not found.");
 822                 return;
 823         }
 824
 825         var sel_rows = new Array();
 826
 827         for (i = 0; i < content.rows.length; i++) {
 828                 if (content.rows[i].id.match(prefix) &&
 829                                 content.rows[i].className.match("Selected")) {
 830
 831                         var row_id = content.rows[i].id.replace(prefix + "-", "");
 832                         sel_rows.push(row_id);
 833                 }
 834         }
 835
 836         return sel_rows;
 837
 838 }
 839
 840 function toggleSelectRowById(sender, id) {
 841         var row = document.getElementById(id);
 842
 843         if (sender.checked) {
 844                 if (!row.className.match("Selected")) {
 845                         row.className = row.className + "Selected";
 846                 }
 847         } else {
 848                 if (row.className.match("Selected")) {
 849                         row.className = row.className.replace("Selected", "");
 850                 }
 851         }
 852 }
 853
 854 function toggleSelectListRow(sender) {
 855         var parent_row = sender.parentNode;
 856
 857         if (sender.checked) {
 858                 if (!parent_row.className.match("Selected")) {
 859                         parent_row.className = parent_row.className + "Selected";
 860                 }
 861         } else {
 862                 if (parent_row.className.match("Selected")) {
 863                         parent_row.className = parent_row.className.replace("Selected", "");
 864                 }
 865         }
 866 }
 867
 868
 869 function toggleSelectRow(sender) {
 870         var parent_row = sender.parentNode.parentNode;
 871
 872         if (sender.checked) {
 873                 if (!parent_row.className.match("Selected")) {
 874                         parent_row.className = parent_row.className + "Selected";
 875                 }
 876         } else {
 877                 if (parent_row.className.match("Selected")) {
 878                         parent_row.className = parent_row.className.replace("Selected", "");
 879                 }
 880         }
 881 }
 882
 883 function openExternalUrl(url) {
 884         var w = window.open(url);
 885 }
 886
 887 function getRelativeFeedId(list, id, direction, unread_only) {
 888         if (!id) {
 889                 if (direction == "next") {
 890                         for (i = 0; i < list.childNodes.length; i++) {
 891                                 var child = list.childNodes[i];
 892                                 if (child.id && child.id == "feedCatHolder") {
 893                                         if (child.lastChild) {
 894                                                 var cr = getRelativeFeedId(child.firstChild, id, direction);
 895                                                 if (cr) return cr;
 896                                         }
 897                                 } else if (child.id && child.id.match("FEEDR-")) {
 898                                         return child.id.replace('FEEDR-', '');
 899                                 }
 900                         }
 901                 }
 902
 903                 // FIXME select last feed doesn't work when only unread feeds are visible
 904
 905                 if (direction == "prev") {
 906                         for (i = list.childNodes.length-1; i >= 0; i--) {
 907                                 var child = list.childNodes[i];
 908                                 if (child.id == "feedCatHolder") {
 909                                         if (child.firstChild) {
 910                                                 var cr = getRelativeFeedId(child.firstChild, id, direction);
 911                                                 if (cr) return cr;
 912                                         }
 913                                 } else if (child.id.match("FEEDR-")) {
 914
 915                                         if (getInitParam("hide_read_feeds") == 1) {
 916                                                 if (child.className != "feed") {
 917                                                         alert(child.className);
 918                                                         return child.id.replace('FEEDR-', '');
 919                                                 }
 920                                         } else {
 921                                                         return child.id.replace('FEEDR-', '');
 922                                         }
 923                                 }
 924                         }
 925                 }
 926         } else {
 927
 928                 var feed = list.ownerDocument.getElementById("FEEDR-" + getActiveFeedId());
 929
 930                 if (getInitParam("hide_read_feeds") == 1) {
 931                         unread_only = true;
 932                 }
 933
 934                 if (direction == "next") {
 935
 936                         var e = feed;
 937
 938                         while (e) {
 939
 940                                 if (e.nextSibling) {
 941
 942                                         e = e.nextSibling;
 943
 944                                 } else if (e.parentNode.parentNode.nextSibling) {
 945
 946                                         var this_cat = e.parentNode.parentNode;
 947
 948                                         e = false;
 949
 950                                         if (this_cat && this_cat.nextSibling) {
 951                                                 while (!e && this_cat.nextSibling) {
 952                                                         this_cat = this_cat.nextSibling;
 953                                                         if (this_cat.id == "feedCatHolder") {
 954                                                                 e = this_cat.firstChild.firstChild;
 955                                                         }
 956                                                 }
 957                                         }
 958
 959                                 } else {
 960                                         e = false;
 961                            }
 962
 963                                 if (e) {
 964                                         if (!unread_only || (unread_only && e.className != "feed" &&
 965                                                         e.className != "error"))        {
 966                                                 return e.id.replace("FEEDR-", "");
 967                                         }
 968                                 }
 969                         }
 970
 971                 } else if (direction == "prev") {
 972
 973                         var e = feed;
 974
 975                         while (e) {
 976
 977                                 if (e.previousSibling) {
 978
 979                                         e = e.previousSibling;
 980
 981                                 } else if (e.parentNode.parentNode.previousSibling) {
 982
 983                                         var this_cat = e.parentNode.parentNode;
 984
 985                                         e = false;
 986
 987                                         if (this_cat && this_cat.previousSibling) {
 988                                                 while (!e && this_cat.previousSibling) {
 989                                                         this_cat = this_cat.previousSibling;
 990                                                         if (this_cat.id == "feedCatHolder") {
 991                                                                 e = this_cat.firstChild.lastChild;
 992                                                         }
 993                                                 }
 994                                         }
 995
 996                                 } else {
 997                                         e = false;
 998                            }
 999
1000                                 if (e) {
1001                                         if (!unread_only || (unread_only && e.className != "feed" &&
1002                                                         e.className != "error"))        {
1003                                                 return e.id.replace("FEEDR-", "");
1004                                         }
1005                                 }
1006                         }
1007                 }
1008         }
1009 }
1010
1011 function showBlockElement(id) {
1012         var elem = document.getElementById(id);
1013
1014         if (elem) {
1015                 elem.style.display = "block";
1016         } else {
1017                 alert("[showBlockElement] can't find element with id " + id);
1018         }
1019 }
1020
1021 function hideParentElement(e) {
1022         e.parentNode.style.display = "none";
1023 }
1024
1025 function dropboxSelect(e, v) {
1026         for (i = 0; i < e.length; i++) {
1027                 if (e[i].value == v) {
1028                         e.selectedIndex = i;
1029                         break;
1030                 }
1031         }
1032 }
1033
1034 // originally stolen from http://www.11tmr.com/11tmr.nsf/d6plinks/MWHE-695L9Z
1035 // bugfixed just a little bit :-)
1036 function getURLParam(strParamName){
1037   var strReturn = "";
1038   var strHref = window.location.href;
1039
1040   if (strHref.indexOf("#") == strHref.length-1) {
1041                 strHref = strHref.substring(0, strHref.length-1);
1042   }
1043
1044   if ( strHref.indexOf("?") > -1 ){
1045     var strQueryString = strHref.substr(strHref.indexOf("?"));
1046     var aQueryString = strQueryString.split("&");
1047     for ( var iParam = 0; iParam < aQueryString.length; iParam++ ){
1048       if (aQueryString[iParam].indexOf(strParamName + "=") > -1 ){
1049         var aParam = aQueryString[iParam].split("=");
1050         strReturn = aParam[1];
1051         break;
1052       }
1053     }
1054   }
1055   return strReturn;
1056 }
1057
1058 function leading_zero(p) {
1059         var s = String(p);
1060         if (s.length == 1) s = "0" + s;
1061         return s;
1062 }
1063
1064 function closeInfoBox(cleanup) {
1065         var box = document.getElementById('infoBox');
1066         var shadow = document.getElementById('infoBoxShadow');
1067
1068         if (shadow) {
1069                 shadow.style.display = "none";
1070         } else if (box) {
1071                 box.style.display = "none";
1072         }
1073
1074         if (cleanup) box.innerHTML = "&nbsp;";
1075
1076         enableHotkeys();
1077
1078 }
1079
1080
1081 function displayDlg(id, param) {
1082
1083         if (!xmlhttp_ready(xmlhttp)) {
1084                 printLockingError();
1085                 return
1086         }
1087
1088         notify("");
1089
1090         xmlhttp.open("GET", "backend.php?op=dlg&id=" +
1091                 param_escape(id) + "&param=" + param_escape(param), true);
1092         xmlhttp.onreadystatechange=infobox_callback;
1093         xmlhttp.send(null);
1094
1095         disableHotkeys();
1096
1097 }
1098
1099 function infobox_submit_callback() {
1100         if (xmlhttp.readyState == 4) {
1101                 closeInfoBox();
1102
1103                 // called from prefs, reload tab
1104                 if (active_tab) {
1105                         selectTab(active_tab, false);
1106                 }
1107
1108                 notify(xmlhttp.responseText);
1109
1110         }
1111 }
1112
1113 function infobox_callback() {
1114         if (xmlhttp.readyState == 4) {
1115                 var box = document.getElementById('infoBox');
1116                 var shadow = document.getElementById('infoBoxShadow');
1117                 if (box) {
1118                         box.innerHTML=xmlhttp.responseText;
1119                         if (shadow) {
1120                                 shadow.style.display = "block";
1121                         } else {
1122                                 box.style.display = "block";
1123                         }
1124                 }
1125         }
1126 }
1127
1128 function qaddFilter() {
1129
1130         if (!xmlhttp_ready(xmlhttp)) {
1131                 printLockingError();
1132                 return
1133         }
1134
1135         var query = Form.serialize("filter_add_form");
1136
1137         xmlhttp.open("GET", "backend.php?" + query, true);
1138         xmlhttp.onreadystatechange=infobox_submit_callback;
1139         xmlhttp.send(null);
1140
1141         return true;
1142 }
1143
1144 function toggleSubmitNotEmpty(e, submit_id) {
1145         try {
1146                 document.getElementById(submit_id).disabled = (e.value == "")
1147         } catch (e) {
1148                 exception_error("toggleSubmitNotEmpty", e);
1149         }
1150 }
1151
1152 function isValidURL(s) {
1153         return s.match("http://") != null || s.match("https://") != null;
1154 }
1155
1156 function qafAdd() {
1157
1158         if (!xmlhttp_ready(xmlhttp)) {
1159                 printLockingError();
1160                 return
1161         }
1162
1163         notify("Adding feed...");
1164
1165         closeInfoBox();
1166
1167         var feeds_doc = getFeedsContext().document;
1168
1169         feeds_doc.location.href = "backend.php?op=error&msg=Loading,%20please wait...";
1170
1171         var query = Form.serialize("feed_add_form");
1172
1173         xmlhttp.open("GET", "backend.php?" + query, true);
1174         xmlhttp.onreadystatechange=dlg_frefresh_callback;
1175         xmlhttp.send(null);
1176 }
1177
1178 function filterCR(e)
1179 {
1180      var key;
1181
1182      if(window.event)
1183           key = window.event.keyCode;     //IE
1184      else
1185           key = e.which;     //firefox
1186
1187      if(key == 13)
1188           return false;
1189      else
1190           return true;
1191 }
1192
1193 function getMainContext() {
1194         if (parent.window != window) {
1195                 return parent.window;
1196         } else {
1197                 return this.window;
1198         }
1199 }
1200
1201 function getFeedsContext() {
1202         try {
1203                 return getMainContext().frames["feeds-frame"];
1204         } catch (e) {
1205                 exception_error("getFeedsContext", e);
1206         }
1207 }
1208
1209
1210 function getHeadlinesContext() {
1211         try {
1212                 return getMainContext().frames["headlines-frame"];
1213         } catch (e) {
1214                 exception_error("getHeadlinesContext", e);
1215         }
1216 }
1217
1218 function debug(msg) {
1219         var ctx = getMainContext();
1220
1221         var c = ctx.document.getElementById('debug_output');
1222         if (c && c.style.display == "block") {
1223                 while (c.lastChild != 'undefined' && c.childNodes.length > 100) {
1224                         c.removeChild(c.lastChild);
1225                 }
1226
1227                 var d = new Date();
1228                 var ts = leading_zero(d.getHours()) + ":" + leading_zero(d.getMinutes()) +
1229                         ":" + leading_zero(d.getSeconds());
1230                 c.innerHTML = "<li>[" + ts + "] " + msg + "</li>" + c.innerHTML;
1231         }
1232 }
1233
1234 function getInitParam(key) {
1235         return getMainContext().init_params[key];
1236 }
1237
1238 function storeInitParam(key, value, is_client) {
1239         try {
1240                 if (!is_client) {
1241                         if (getMainContext().init_params[key] != value) {
1242                                 debug("storeInitParam: " + key + " => " + value);
1243                                 new Ajax.Request("backend.php?op=rpc&subop=storeParam&key=" +
1244                                         param_escape(key) + "&value=" + param_escape(value));
1245                         }
1246                 }
1247                 getMainContext().init_params[key] = value;
1248         } catch (e) {
1249                 exception_error("storeInitParam", e);
1250         }
1251 }
1252
1253 /*
1254 function storeInitParams(params, is_client) {
1255         try {
1256                 var s = "";
1257
1258                 for (k in params) {
1259                         if (getMainContext().init_params[k] != params[k]) {
1260                                 s += k + "=" + params[k] + ";";
1261                                 getMainContext().init_params[k] = params[k];
1262                         }
1263                 }
1264
1265                 debug("storeInitParams: " + s);
1266
1267                 if (!is_client) {
1268                         new Ajax.Request("backend.php?op=rpc&subop=storeParams&str=" + s);
1269                 }
1270         } catch (e) {
1271                 exception_error("storeInitParams", e);
1272         }
1273 }*/
1274
1275 function fatalError(code, message) {
1276         try {
1277                 var fe = document.getElementById("fatal_error");
1278                 var fc = document.getElementById("fatal_error_msg");
1279
1280                 fc.innerHTML = "Code " + code + ": " + message;
1281
1282                 fe.style.display = "block";
1283
1284         } catch (e) {
1285                 exception_error("fatalError", e);
1286         }
1287 }
1288
1289 function getFeedName(id) {
1290         var d = getFeedsContext().document;
1291         var e = d.getElementById("FEEDN-" + id);
1292         if (e) {
1293                 return e.innerHTML.stripTags();
1294         } else {
1295                 return null;
1296         }
1297 }