functions.js

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