functions.js

   1 var hotkeys_enabled = true;
   2
   3 function exception_error(location, e) {
   4         var msg;
   5
   6         if (e.fileName) {
   7                 var base_fname = e.fileName.substring(e.fileName.lastIndexOf("/") + 1);
   8
   9                 msg = "Exception: " + e.name + ", " + e.message +
  10                         "\nFunction: " + location + "()" +
  11                         "\nLocation: " + base_fname + ":" + e.lineNumber;
  12         } else {
  13                 msg = "Exception: " + e + "\nFunction: " + location + "()";
  14         }
  15
  16         alert(msg);
  17 }
  18
  19 function disableHotkeys() {
  20         hotkeys_enabled = false;
  21 }
  22
  23 function enableHotkeys() {
  24         hotkeys_enabled = true;
  25 }
  26
  27 function xmlhttp_ready(obj) {
  28         return obj.readyState == 4 || obj.readyState == 0 || !obj.readyState;
  29 }
  30
  31
  32 function notify_callback() {
  33         var container = document.getElementById('notify');
  34         if (xmlhttp.readyState == 4) {
  35                 container.innerHTML=xmlhttp.responseText;
  36         }
  37 }
  38
  39 function rpc_notify_callback() {
  40         var container = document.getElementById('notify');
  41         if (xmlhttp_rpc.readyState == 4) {
  42                 container.innerHTML=xmlhttp_rpc.responseText;
  43         }
  44 }
  45
  46 function rpc_pnotify_callback() {
  47         var container = parent.document.getElementById('notify');
  48         if (xmlhttp_rpc.readyState == 4) {
  49                 container.innerHTML=xmlhttp_rpc.responseText;
  50         }
  51 }
  52
  53 function param_escape(arg) {
  54         if (typeof encodeURIComponent != 'undefined')
  55                 return encodeURIComponent(arg);
  56         else
  57                 return escape(arg);
  58 }
  59
  60 function param_unescape(arg) {
  61         if (typeof decodeURIComponent != 'undefined')
  62                 return decodeURIComponent(arg);
  63         else
  64                 return unescape(arg);
  65 }
  66
  67 function delay(gap) {
  68         var then,now;
  69         then=new Date().getTime();
  70         now=then;
  71         while((now-then)<gap) {
  72                 now=new Date().getTime();
  73         }
  74 }
  75
  76 function p_notify(msg) {
  77
  78         var n = parent.document.getElementById("notify");
  79         var nb = parent.document.getElementById("notify_body");
  80
  81         if (!n || !nb) return;
  82
  83         if (msg == "") {
  84                 nb.innerHTML = "&nbsp;";
  85 //              n.style.background = "#ffffff";
  86         } else {
  87                 nb.innerHTML = msg;
  88 //              n.style.background = "#fffff0";
  89         }
  90 }
  91
  92 function notify(msg) {
  93
  94         var n = document.getElementById("notify");
  95         var nb = document.getElementById("notify_body");
  96
  97         if (!n || !nb) return;
  98
  99         if (msg == "") {
 100                 nb.innerHTML = "&nbsp;";
 101 //              n.style.background = "#ffffff";
 102         } else {
 103                 nb.innerHTML = msg;
 104 //              n.style.background = "#fffff0";
 105         }
 106
 107 }
 108
 109 function printLockingError() {
 110         notify("Please wait until operation finishes");}
 111
 112 var seq = "";
 113
 114 function hotkey_handler(e) {
 115
 116         var keycode;
 117
 118         if (!hotkeys_enabled) return;
 119
 120         if (window.event) {
 121                 keycode = window.event.keyCode;
 122         } else if (e) {
 123                 keycode = e.which;
 124         }
 125
 126         if (keycode == 13 || keycode == 27) {
 127                 seq = "";
 128         } else {
 129                 seq = seq + "" + keycode;
 130         }
 131
 132         var piggie = document.getElementById("piggie");
 133
 134         if (piggie) {
 135
 136                 if (seq.match("807371717369")) {
 137                         localPiggieFunction(true);
 138                 } else {
 139                         localPiggieFunction(false);
 140                 }
 141         }
 142
 143         if (typeof localHotkeyHandler != 'undefined') {
 144                 try {
 145                         localHotkeyHandler(keycode);
 146                 } catch (e) {
 147                         exception_error("hotkey_handler", e);
 148                 }
 149         }
 150
 151 }
 152
 153 function cleanSelectedList(element) {
 154         var content = document.getElementById(element);
 155
 156         if (!document.getElementById("feedCatHolder")) {
 157                 for (i = 0; i < content.childNodes.length; i++) {
 158                         var child = content.childNodes[i];
 159                         child.className = child.className.replace("Selected", "");
 160                 }
 161         } else {
 162                 for (i = 0; i < content.childNodes.length; i++) {
 163                         var child = content.childNodes[i];
 164
 165                         if (child.id == "feedCatHolder") {
 166                                 var fcat = child.lastChild;
 167                                 for (j = 0; j < fcat.childNodes.length; j++) {
 168                                         var feed = fcat.childNodes[j];
 169                                         feed.className = feed.className.replace("Selected", "");
 170                                 }
 171                         }
 172                 }
 173
 174         }
 175 }
 176
 177
 178 function cleanSelected(element) {
 179         var content = document.getElementById(element);
 180
 181         for (i = 0; i < content.rows.length; i++) {
 182                 content.rows[i].className = content.rows[i].className.replace("Selected", "");
 183         }
 184
 185 }
 186
 187 function getVisibleUnreadHeadlines() {
 188         var content = document.getElementById("headlinesList");
 189
 190         var rows = new Array();
 191
 192         for (i = 0; i < content.rows.length; i++) {
 193                 var row_id = content.rows[i].id.replace("RROW-", "");
 194                 if (row_id.length > 0 && content.rows[i].className.match("Unread")) {
 195                                 rows.push(row_id);
 196                 }
 197         }
 198         return rows;
 199 }
 200
 201 function getVisibleHeadlineIds() {
 202
 203         var content = document.getElementById("headlinesList");
 204
 205         var rows = new Array();
 206
 207         for (i = 0; i < content.rows.length; i++) {
 208                 var row_id = content.rows[i].id.replace("RROW-", "");
 209                 if (row_id.length > 0) {
 210                                 rows.push(row_id);
 211                 }
 212         }
 213         return rows;
 214 }
 215
 216 function getFirstVisibleHeadlineId() {
 217         var rows = getVisibleHeadlineIds();
 218         return rows[0];
 219 }
 220
 221 function getLastVisibleHeadlineId() {
 222         var rows = getVisibleHeadlineIds();
 223         return rows[rows.length-1];
 224 }
 225
 226 function markHeadline(id) {
 227         var row = document.getElementById("RROW-" + id);
 228         if (row) {
 229                 var is_active = false;
 230
 231                 if (row.className.match("Active")) {
 232                         is_active = true;
 233                 }
 234                 row.className = row.className.replace("Selected", "");
 235                 row.className = row.className.replace("Active", "");
 236                 row.className = row.className.replace("Insensitive", "");
 237
 238                 if (is_active) {
 239                         row.className = row.className = "Active";
 240                 }
 241
 242                 row.className = row.className + "Selected";
 243
 244         }
 245 }
 246
 247 function getFeedIds() {
 248         var content = document.getElementById("feedsList");
 249
 250         var rows = new Array();
 251
 252         for (i = 0; i < content.rows.length; i++) {
 253                 var id = content.rows[i].id.replace("FEEDR-", "");
 254                 if (id.length > 0) {
 255                         rows.push(id);
 256                 }
 257         }
 258
 259         return rows;
 260 }
 261
 262 function setCookie(name, value, expires, path, domain, secure) {
 263         document.cookie= name + "=" + escape(value) +
 264                 ((expires) ? "; expires=" + expires.toGMTString() : "") +
 265                 ((path) ? "; path=" + path : "") +
 266                 ((domain) ? "; domain=" + domain : "") +
 267                 ((secure) ? "; secure" : "");
 268 }
 269
 270 function getCookie(name) {
 271
 272         var dc = document.cookie;
 273         var prefix = name + "=";
 274         var begin = dc.indexOf("; " + prefix);
 275         if (begin == -1) {
 276             begin = dc.indexOf(prefix);
 277             if (begin != 0) return null;
 278         }
 279         else {
 280             begin += 2;
 281         }
 282         var end = document.cookie.indexOf(";", begin);
 283         if (end == -1) {
 284             end = dc.length;
 285         }
 286         return unescape(dc.substring(begin + prefix.length, end));
 287 }
 288
 289 function disableContainerChildren(id, disable, doc) {
 290
 291         if (!doc) doc = document;
 292
 293         var container = doc.getElementById(id);
 294
 295         for (var i = 0; i < container.childNodes.length; i++) {
 296                 var child = container.childNodes[i];
 297
 298                 try {
 299                         child.disabled = disable;
 300                 } catch (E) {
 301
 302                 }
 303
 304                 if (disable) {
 305                         if (child.className && child.className.match("button")) {
 306                                 child.className = "disabledButton";
 307                         }
 308                 } else {
 309                         if (child.className && child.className.match("disabledButton")) {
 310                                 child.className = "button";
 311                         }
 312                 }
 313         }
 314
 315 }
 316
 317 function gotoPreferences() {
 318         document.location.href = "prefs.php";
 319 }
 320
 321 function gotoMain() {
 322         document.location.href = "tt-rss.php";
 323 }
 324
 325 function gotoExportOpml() {
 326         document.location.href = "opml.php?op=Export";
 327 }
 328
 329 function getActiveFeedId() {
 330         return getCookie("ttrss_vf_actfeed");
 331 }
 332
 333 function setActiveFeedId(id) {
 334         return setCookie("ttrss_vf_actfeed", id);
 335 }
 336
 337 var xmlhttp_rpc = false;
 338
 339 /*@cc_on @*/
 340 /*@if (@_jscript_version >= 5)
 341 // JScript gives us Conditional compilation, we can cope with old IE versions.
 342 // and security blocked creation of the objects.
 343 try {
 344         xmlhttp_rpc = new ActiveXObject("Msxml2.XMLHTTP");
 345 } catch (e) {
 346         try {
 347                 xmlhttp_rpc = new ActiveXObject("Microsoft.XMLHTTP");
 348         } catch (E) {
 349                 xmlhttp_rpc = false;
 350         }
 351 }
 352 @end @*/
 353
 354 if (!xmlhttp_rpc && typeof XMLHttpRequest!='undefined') {
 355         xmlhttp_rpc = new XMLHttpRequest();
 356 }
 357
 358 function parse_counters(reply, f_document) {
 359         try {
 360                 for (var l = 0; l < reply.childNodes.length; l++) {
 361                         var id = reply.childNodes[l].getAttribute("id");
 362                         var t = reply.childNodes[l].getAttribute("type");
 363                         var ctr = reply.childNodes[l].getAttribute("counter");
 364
 365                         if (id == "global-unread") {
 366                                 parent.global_unread = ctr;
 367                                 parent.updateTitle();
 368                                 continue;
 369                         }
 370
 371                         if (t == "category") {
 372                                 var catctr = f_document.getElementById("FCATCTR-" + id);
 373                                 if (catctr) {
 374                                         catctr.innerHTML = "(" + ctr + " unread)";
 375                                 }
 376                                 continue;
 377                         }
 378
 379                         var feedctr = f_document.getElementById("FEEDCTR-" + id);
 380                         var feedu = f_document.getElementById("FEEDU-" + id);
 381                         var feedr = f_document.getElementById("FEEDR-" + id);
 382
 383                         if (feedctr && feedu && feedr) {
 384
 385                                 feedu.innerHTML = ctr;
 386
 387                                 if (ctr > 0) {
 388                                         feedctr.className = "odd";
 389                                         if (!feedr.className.match("Unread")) {
 390                                                 var is_selected = feedr.className.match("Selected");
 391
 392                                                 feedr.className = feedr.className.replace("Selected", "");
 393                                                 feedr.className = feedr.className.replace("Unread", "");
 394
 395                                                 feedr.className = feedr.className + "Unread";
 396
 397                                                 if (is_selected) {
 398                                                         feedr.className = feedr.className + "Selected";
 399                                                 }
 400
 401                                         }
 402                                 } else {
 403                                         feedctr.className = "invisible";
 404                                         feedr.className = feedr.className.replace("Unread", "");
 405                                 }
 406                         }
 407                 }
 408         } catch (e) {
 409                 exception_error("parse_counters", e);
 410         }
 411 }
 412
 413 function all_counters_callback() {
 414         if (xmlhttp_rpc.readyState == 4) {
 415                 try {
 416                         if (!xmlhttp_rpc.responseXML || !xmlhttp_rpc.responseXML.firstChild) {
 417                                 notify("[all_counters_callback] backend did not return valid XML");
 418                                 return;
 419                         }
 420
 421                         var reply = xmlhttp_rpc.responseXML.firstChild;
 422                         var f_document = parent.frames["feeds-frame"].document;
 423
 424                         parse_counters(reply, f_document);
 425
 426                 } catch (e) {
 427                         exception_error("all_counters_callback", e);
 428                 }
 429         }
 430 }
 431
 432 function update_all_counters(feed) {
 433         if (xmlhttp_ready(xmlhttp_rpc)) {
 434                 var query = "backend.php?op=rpc&subop=getAllCounters";
 435
 436                 if (feed > 0) {
 437                         query = query + "&aid=" + feed;
 438                 }
 439
 440                 xmlhttp_rpc.open("GET", query, true);
 441                 xmlhttp_rpc.onreadystatechange=all_counters_callback;
 442                 xmlhttp_rpc.send(null);
 443         }
 444 }
 445
 446 function popupHelp(tid) {
 447         var w = window.open("backend.php?op=help&tid=" + tid,
 448                 "Popup Help",
 449                 "menubar=no,location=no,resizable=yes,scrollbars=yes,status=no");
 450 }
 451
 452 /** * @(#)isNumeric.js * * Copyright (c) 2000 by Sundar Dorai-Raj
 453   * * @author Sundar Dorai-Raj
 454   * * Email: sdoraira@vt.edu
 455   * * This program is free software; you can redistribute it and/or
 456   * * modify it under the terms of the GNU General Public License
 457   * * as published by the Free Software Foundation; either version 2
 458   * * of the License, or (at your option) any later version,
 459   * * provided that any use properly credits the author.
 460   * * This program is distributed in the hope that it will be useful,
 461   * * but WITHOUT ANY WARRANTY; without even the implied warranty of
 462   * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 463   * * GNU General Public License for more details at http://www.gnu.org * * */
 464
 465   var numbers=".0123456789";
 466   function isNumeric(x) {
 467     // is x a String or a character?
 468     if(x.length>1) {
 469       // remove negative sign
 470       x=Math.abs(x)+"";
 471       for(j=0;j<x.length;j++) {
 472         // call isNumeric recursively for each character
 473         number=isNumeric(x.substring(j,j+1));
 474         if(!number) return number;
 475       }
 476       return number;
 477     }
 478     else {
 479       // if x is number return true
 480       if(numbers.indexOf(x)>=0) return true;
 481       return false;
 482     }
 483   }
 484
 485
 486 function hideOrShowFeeds(doc, hide) {
 487
 488         var css_rules = doc.styleSheets[0].cssRules;
 489
 490         for (i = 0; i < css_rules.length; i++) {
 491                 var rule = css_rules[i];
 492
 493                 if (rule.selectorText == "ul.feedList li.feed") {
 494                         if (!hide) {
 495                                 rule.style.display = "block";
 496                         } else {
 497                                 rule.style.display = "none";
 498                         }
 499                 }
 500
 501         }
 502
 503 }
 504
 505 function fatalError(code) {
 506         window.location = "error.php?c=" + param_escape(code);
 507 }
 508
 509 function selectTableRow(r, do_select) {
 510         r.className = r.className.replace("Selected", "");
 511
 512         if (do_select) {
 513                 r.className = r.className + "Selected";
 514         }
 515 }
 516
 517 function selectTableRowsByIdPrefix(content_id, prefix, check_prefix, do_select,
 518         classcheck) {
 519
 520         var content = document.getElementById(content_id);
 521
 522         if (!content) {
 523                 alert("[selectTableRows] Element " + content_id + " not found.");
 524                 return;
 525         }
 526
 527         for (i = 0; i < content.rows.length; i++) {
 528                 if (!classcheck || content.rows[i].className.match(classcheck)) {
 529
 530                         if (content.rows[i].id.match(prefix)) {
 531                                 selectTableRow(content.rows[i], do_select);
 532                         }
 533
 534                         var row_id = content.rows[i].id.replace(prefix, "");
 535                         var check = document.getElementById(check_prefix + row_id);
 536
 537                         if (check) {
 538                                 check.checked = do_select;
 539                         }
 540                 }
 541         }
 542 }
 543
 544 function getSelectedTableRowIds(content_id, prefix) {
 545
 546         var content = document.getElementById(content_id);
 547
 548         if (!content) {
 549                 alert("[getSelectedTableRowIds] Element " + content_id + " not found.");
 550                 return;
 551         }
 552
 553         var sel_rows = new Array();
 554
 555         for (i = 0; i < content.rows.length; i++) {
 556                 if (content.rows[i].id.match(prefix) &&
 557                                 content.rows[i].className.match("Selected")) {
 558
 559                         var row_id = content.rows[i].id.replace(prefix + "-", "");
 560                         sel_rows.push(row_id);
 561                 }
 562         }
 563
 564         return sel_rows;
 565
 566 }
 567
 568 function toggleSelectRowById(sender, id) {
 569         var row = document.getElementById(id);
 570
 571         if (sender.checked) {
 572                 if (!row.className.match("Selected")) {
 573                         row.className = row.className + "Selected";
 574                 }
 575         } else {
 576                 if (row.className.match("Selected")) {
 577                         row.className = row.className.replace("Selected", "");
 578                 }
 579         }
 580 }
 581
 582
 583 function toggleSelectRow(sender) {
 584         var parent_row = sender.parentNode.parentNode;
 585
 586         if (sender.checked) {
 587                 if (!parent_row.className.match("Selected")) {
 588                         parent_row.className = parent_row.className + "Selected";
 589                 }
 590         } else {
 591                 if (parent_row.className.match("Selected")) {
 592                         parent_row.className = parent_row.className.replace("Selected", "");
 593                 }
 594         }
 595 }
 596
 597 function openExternalUrl(url) {
 598         var w = window.open(url);
 599 }
 600
 601
 602 function getRelativeFeedId(list, id, direction) {
 603         if (!id) {
 604                 if (direction == "next") {
 605                         for (i = 0; i < list.childNodes.length; i++) {
 606                                 var child = list.childNodes[i];
 607                                 if (child.id == "feedCatHolder") {
 608                                         if (child.lastChild) {
 609                                                 var cr = getRelativeFeedId(child.firstChild, id, direction);
 610                                                 if (cr) return cr;
 611                                         }
 612                                 } else if (child.id.match("FEEDR-")) {
 613                                         return child.id.replace('FEEDR-', '');
 614                                 }
 615                         }
 616                 }
 617
 618                 // FIXME select last feed doesn't work when only unread feeds are visible
 619
 620                 if (direction == "prev") {
 621                         for (i = list.childNodes.length-1; i >= 0; i--) {
 622                                 var child = list.childNodes[i];
 623                                 if (child.id == "feedCatHolder") {
 624                                         if (child.firstChild) {
 625                                                 var cr = getRelativeFeedId(child.firstChild, id, direction);
 626                                                 if (cr) return cr;
 627                                         }
 628                                 } else if (child.id.match("FEEDR-")) {
 629
 630                                         if (getCookie("ttrss_vf_hreadf") == 1) {
 631                                                 if (child.className != "feed") {
 632                                                         alert(child.className);
 633                                                         return child.id.replace('FEEDR-', '');
 634                                                 }
 635                                         } else {
 636                                                         return child.id.replace('FEEDR-', '');
 637                                         }
 638                                 }
 639                         }
 640                 }
 641         } else {
 642
 643                 var feed = list.ownerDocument.getElementById("FEEDR-" + getActiveFeedId());
 644
 645                 if (direction == "next") {
 646
 647                         if (feed.nextSibling) {
 648
 649                                 var next_feed = feed.nextSibling;
 650
 651                                 while (!next_feed.id && next_feed.nextSibling) {
 652                                         next_feed = next_feed.nextSibling;
 653                                 }
 654
 655                                 if (getCookie("ttrss_vf_hreadf") == 1) {
 656                                                 while (next_feed && next_feed.className == "feed") {
 657                                                         next_feed = next_feed.nextSibling;
 658                                                 }
 659                                         }
 660
 661                                 if (next_feed && next_feed.id.match("FEEDR-")) {
 662                                         return next_feed.id.replace("FEEDR-", "");
 663                                 }
 664                         }
 665
 666                         var this_cat = feed.parentNode.parentNode;
 667
 668                         if (this_cat && this_cat.nextSibling) {
 669                                 while (this_cat = this_cat.nextSibling) {
 670                                         if (this_cat.firstChild && this_cat.firstChild.firstChild) {
 671                                                 var next_feed = this_cat.firstChild.firstChild;
 672                                                         if (getCookie("ttrss_vf_hreadf") == 1) {
 673                                                         while (next_feed && next_feed.className == "feed") {
 674                                                                 next_feed = next_feed.nextSibling;
 675                                                         }
 676                                                 }
 677                                                 if (next_feed && next_feed.id.match("FEEDR-")) {
 678                                                         return next_feed.id.replace("FEEDR-", "");
 679                                                 }
 680                                         }
 681                                 }
 682                         }
 683                 } else if (direction == "prev") {
 684
 685                         if (feed.previousSibling) {
 686
 687                                 var prev_feed = feed.previousSibling;
 688
 689                                 if (getCookie("ttrss_vf_hreadf") == 1) {
 690                                                 while (prev_feed && prev_feed.className == "feed") {
 691                                                         prev_feed = prev_feed.previousSibling;
 692                                                 }
 693                                         }
 694
 695                                 while (!prev_feed.id && prev_feed.previousSibling) {
 696                                         prev_feed = prev_feed.previousSibling;
 697                                 }
 698
 699                                 if (prev_feed && prev_feed.id.match("FEEDR-")) {
 700                                         return prev_feed.id.replace("FEEDR-", "");
 701                                 }
 702                         }
 703
 704                         var this_cat = feed.parentNode.parentNode;
 705
 706                         if (this_cat && this_cat.previousSibling) {
 707                                 while (this_cat = this_cat.previousSibling) {
 708                                         if (this_cat.lastChild && this_cat.firstChild.lastChild) {
 709                                                 var prev_feed = this_cat.firstChild.lastChild;
 710                                                         if (getCookie("ttrss_vf_hreadf") == 1) {
 711                                                         while (prev_feed && prev_feed.className == "feed") {
 712                                                                 prev_feed = prev_feed.previousSibling;
 713                                                         }
 714                                                 }
 715                                                 if (prev_feed && prev_feed.id.match("FEEDR-")) {
 716                                                         return prev_feed.id.replace("FEEDR-", "");
 717                                                 }
 718                                         }
 719                                 }
 720                         }
 721                 }
 722         }
 723 }
 724
 725 function showBlockElement(id) {
 726         var elem = document.getElementById(id);
 727
 728         if (elem) {
 729                 elem.style.display = "block";
 730         } else {
 731                 alert("[showBlockElement] can't find element with id " + id);
 732         }
 733 }
 734
 735