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, title_obj) {
 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                         var error = reply.childNodes[l].getAttribute("error");
 365                         var has_img = reply.childNodes[l].getAttribute("hi");
 366
 367                         if (id == "global-unread") {
 368                                 title_obj.global_unread = ctr;
 369                                 title_obj.updateTitle();
 370                                 continue;
 371                         }
 372
 373                         if (t == "category") {
 374                                 var catctr = f_document.getElementById("FCATCTR-" + id);
 375                                 if (catctr) {
 376                                         catctr.innerHTML = "(" + ctr + " unread)";
 377                                 }
 378                                 continue;
 379                         }
 380
 381                         var feedctr = f_document.getElementById("FEEDCTR-" + id);
 382                         var feedu = f_document.getElementById("FEEDU-" + id);
 383                         var feedr = f_document.getElementById("FEEDR-" + id);
 384                         var feed_img = f_document.getElementById("FIMG-" + id);
 385
 386                         if (feedctr && feedu && feedr) {
 387
 388                                 feedu.innerHTML = ctr;
 389
 390                                 if (error) {
 391                                         feedr.className = feedr.className.replace("feed", "error");
 392                                 } else if (id > 0) {
 393                                         feedr.className = feedr.className.replace("error", "feed");
 394                                 }
 395
 396                                 if (ctr > 0) {
 397                                         feedctr.className = "odd";
 398                                         if (!feedr.className.match("Unread")) {
 399                                                 var is_selected = feedr.className.match("Selected");
 400
 401                                                 feedr.className = feedr.className.replace("Selected", "");
 402                                                 feedr.className = feedr.className.replace("Unread", "");
 403
 404                                                 feedr.className = feedr.className + "Unread";
 405
 406                                                 if (is_selected) {
 407                                                         feedr.className = feedr.className + "Selected";
 408                                                 }
 409
 410                                         }
 411                                 } else {
 412                                         feedctr.className = "invisible";
 413                                         feedr.className = feedr.className.replace("Unread", "");
 414                                 }
 415                         }
 416                 }
 417         } catch (e) {
 418                 exception_error("parse_counters", e);
 419         }
 420 }
 421
 422 // this one is called from feedlist context
 423 // thus title_obj passed to parse_counters is parent (e.g. main ttrss window)
 424
 425 function all_counters_callback() {
 426         if (xmlhttp_rpc.readyState == 4) {
 427                 try {
 428                         if (!xmlhttp_rpc.responseXML || !xmlhttp_rpc.responseXML.firstChild) {
 429                                 notify("[all_counters_callback] backend did not return valid XML");
 430                                 return;
 431                         }
 432
 433                         var reply = xmlhttp_rpc.responseXML.firstChild;
 434                         var f_document = parent.frames["feeds-frame"].document;
 435
 436                         parse_counters(reply, f_document, parent);
 437
 438                 } catch (e) {
 439                         exception_error("all_counters_callback", e);
 440                 }
 441         }
 442 }
 443
 444 function update_all_counters(feed) {
 445         if (xmlhttp_ready(xmlhttp_rpc)) {
 446                 var query = "backend.php?op=rpc&subop=getAllCounters";
 447
 448                 if (feed > 0) {
 449                         query = query + "&aid=" + feed;
 450                 }
 451
 452                 xmlhttp_rpc.open("GET", query, true);
 453                 xmlhttp_rpc.onreadystatechange=all_counters_callback;
 454                 xmlhttp_rpc.send(null);
 455         }
 456 }
 457
 458 function popupHelp(tid) {
 459         var w = window.open("backend.php?op=help&tid=" + tid,
 460                 "Popup Help",
 461                 "menubar=no,location=no,resizable=yes,scrollbars=yes,status=no");
 462 }
 463
 464 /** * @(#)isNumeric.js * * Copyright (c) 2000 by Sundar Dorai-Raj
 465   * * @author Sundar Dorai-Raj
 466   * * Email: sdoraira@vt.edu
 467   * * This program is free software; you can redistribute it and/or
 468   * * modify it under the terms of the GNU General Public License
 469   * * as published by the Free Software Foundation; either version 2
 470   * * of the License, or (at your option) any later version,
 471   * * provided that any use properly credits the author.
 472   * * This program is distributed in the hope that it will be useful,
 473   * * but WITHOUT ANY WARRANTY; without even the implied warranty of
 474   * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 475   * * GNU General Public License for more details at http://www.gnu.org * * */
 476
 477   var numbers=".0123456789";
 478   function isNumeric(x) {
 479     // is x a String or a character?
 480     if(x.length>1) {
 481       // remove negative sign
 482       x=Math.abs(x)+"";
 483       for(j=0;j<x.length;j++) {
 484         // call isNumeric recursively for each character
 485         number=isNumeric(x.substring(j,j+1));
 486         if(!number) return number;
 487       }
 488       return number;
 489     }
 490     else {
 491       // if x is number return true
 492       if(numbers.indexOf(x)>=0) return true;
 493       return false;
 494     }
 495   }
 496
 497
 498 function hideOrShowFeeds(doc, hide) {
 499
 500         if (!doc.styleSheets) return;
 501
 502         var css_rules = doc.styleSheets[0].cssRules;
 503
 504         if (!css_rules || !css_rules.length) return;
 505
 506         for (i = 0; i < css_rules.length; i++) {
 507                 var rule = css_rules[i];
 508
 509                 if (rule.selectorText == "ul.feedList li.feed") {
 510                         if (!hide) {
 511                                 rule.style.display = "block";
 512                         } else {
 513                                 rule.style.display = "none";
 514                         }
 515                 }
 516
 517         }
 518
 519 }
 520
 521 function fatalError(code) {
 522         window.location = "error.php?c=" + param_escape(code);
 523 }
 524
 525 function selectTableRow(r, do_select) {
 526         r.className = r.className.replace("Selected", "");
 527
 528         if (do_select) {
 529                 r.className = r.className + "Selected";
 530         }
 531 }
 532
 533 function selectTableRowsByIdPrefix(content_id, prefix, check_prefix, do_select,
 534         classcheck) {
 535
 536         var content = document.getElementById(content_id);
 537
 538         if (!content) {
 539                 alert("[selectTableRows] Element " + content_id + " not found.");
 540                 return;
 541         }
 542
 543         for (i = 0; i < content.rows.length; i++) {
 544                 if (!classcheck || content.rows[i].className.match(classcheck)) {
 545
 546                         if (content.rows[i].id.match(prefix)) {
 547                                 selectTableRow(content.rows[i], do_select);
 548                         }
 549
 550                         var row_id = content.rows[i].id.replace(prefix, "");
 551                         var check = document.getElementById(check_prefix + row_id);
 552
 553                         if (check) {
 554                                 check.checked = do_select;
 555                         }
 556                 }
 557         }
 558 }
 559
 560 function getSelectedTableRowIds(content_id, prefix) {
 561
 562         var content = document.getElementById(content_id);
 563
 564         if (!content) {
 565                 alert("[getSelectedTableRowIds] Element " + content_id + " not found.");
 566                 return;
 567         }
 568
 569         var sel_rows = new Array();
 570
 571         for (i = 0; i < content.rows.length; i++) {
 572                 if (content.rows[i].id.match(prefix) &&
 573                                 content.rows[i].className.match("Selected")) {
 574
 575                         var row_id = content.rows[i].id.replace(prefix + "-", "");
 576                         sel_rows.push(row_id);
 577                 }
 578         }
 579
 580         return sel_rows;
 581
 582 }
 583
 584 function toggleSelectRowById(sender, id) {
 585         var row = document.getElementById(id);
 586
 587         if (sender.checked) {
 588                 if (!row.className.match("Selected")) {
 589                         row.className = row.className + "Selected";
 590                 }
 591         } else {
 592                 if (row.className.match("Selected")) {
 593                         row.className = row.className.replace("Selected", "");
 594                 }
 595         }
 596 }
 597
 598
 599 function toggleSelectRow(sender) {
 600         var parent_row = sender.parentNode.parentNode;
 601
 602         if (sender.checked) {
 603                 if (!parent_row.className.match("Selected")) {
 604                         parent_row.className = parent_row.className + "Selected";
 605                 }
 606         } else {
 607                 if (parent_row.className.match("Selected")) {
 608                         parent_row.className = parent_row.className.replace("Selected", "");
 609                 }
 610         }
 611 }
 612
 613 function openExternalUrl(url) {
 614         var w = window.open(url);
 615 }
 616
 617
 618 function getRelativeFeedId(list, id, direction) {
 619         if (!id) {
 620                 if (direction == "next") {
 621                         for (i = 0; i < list.childNodes.length; i++) {
 622                                 var child = list.childNodes[i];
 623                                 if (child.id == "feedCatHolder") {
 624                                         if (child.lastChild) {
 625                                                 var cr = getRelativeFeedId(child.firstChild, id, direction);
 626                                                 if (cr) return cr;
 627                                         }
 628                                 } else if (child.id.match("FEEDR-")) {
 629                                         return child.id.replace('FEEDR-', '');
 630                                 }
 631                         }
 632                 }
 633
 634                 // FIXME select last feed doesn't work when only unread feeds are visible
 635
 636                 if (direction == "prev") {
 637                         for (i = list.childNodes.length-1; i >= 0; i--) {
 638                                 var child = list.childNodes[i];
 639                                 if (child.id == "feedCatHolder") {
 640                                         if (child.firstChild) {
 641                                                 var cr = getRelativeFeedId(child.firstChild, id, direction);
 642                                                 if (cr) return cr;
 643                                         }
 644                                 } else if (child.id.match("FEEDR-")) {
 645
 646                                         if (getCookie("ttrss_vf_hreadf") == 1) {
 647                                                 if (child.className != "feed") {
 648                                                         alert(child.className);
 649                                                         return child.id.replace('FEEDR-', '');
 650                                                 }
 651                                         } else {
 652                                                         return child.id.replace('FEEDR-', '');
 653                                         }
 654                                 }
 655                         }
 656                 }
 657         } else {
 658
 659                 var feed = list.ownerDocument.getElementById("FEEDR-" + getActiveFeedId());
 660
 661                 if (direction == "next") {
 662
 663                         if (feed.nextSibling) {
 664
 665                                 var next_feed = feed.nextSibling;
 666
 667                                 while (!next_feed.id && next_feed.nextSibling) {
 668                                         next_feed = next_feed.nextSibling;
 669                                 }
 670
 671                                 if (getCookie("ttrss_vf_hreadf") == 1) {
 672                                                 while (next_feed && next_feed.className == "feed") {
 673                                                         next_feed = next_feed.nextSibling;
 674                                                 }
 675                                         }
 676
 677                                 if (next_feed && next_feed.id.match("FEEDR-")) {
 678                                         return next_feed.id.replace("FEEDR-", "");
 679                                 }
 680                         }
 681
 682                         var this_cat = feed.parentNode.parentNode;
 683
 684                         if (this_cat && this_cat.nextSibling) {
 685                                 while (this_cat = this_cat.nextSibling) {
 686                                         if (this_cat.firstChild && this_cat.firstChild.firstChild) {
 687                                                 var next_feed = this_cat.firstChild.firstChild;
 688                                                         if (getCookie("ttrss_vf_hreadf") == 1) {
 689                                                         while (next_feed && next_feed.className == "feed") {
 690                                                                 next_feed = next_feed.nextSibling;
 691                                                         }
 692                                                 }
 693                                                 if (next_feed && next_feed.id.match("FEEDR-")) {
 694                                                         return next_feed.id.replace("FEEDR-", "");
 695                                                 }
 696                                         }
 697                                 }
 698                         }
 699                 } else if (direction == "prev") {
 700
 701                         if (feed.previousSibling) {
 702
 703                                 var prev_feed = feed.previousSibling;
 704
 705                                 if (getCookie("ttrss_vf_hreadf") == 1) {
 706                                                 while (prev_feed && prev_feed.className == "feed") {
 707                                                         prev_feed = prev_feed.previousSibling;
 708                                                 }
 709                                         }
 710
 711                                 while (!prev_feed.id && prev_feed.previousSibling) {
 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                         var this_cat = feed.parentNode.parentNode;
 721
 722                         if (this_cat && this_cat.previousSibling) {
 723                                 while (this_cat = this_cat.previousSibling) {
 724                                         if (this_cat.lastChild && this_cat.firstChild.lastChild) {
 725                                                 var prev_feed = this_cat.firstChild.lastChild;
 726                                                         if (getCookie("ttrss_vf_hreadf") == 1) {
 727                                                         while (prev_feed && prev_feed.className == "feed") {
 728                                                                 prev_feed = prev_feed.previousSibling;
 729                                                         }
 730                                                 }
 731                                                 if (prev_feed && prev_feed.id.match("FEEDR-")) {
 732                                                         return prev_feed.id.replace("FEEDR-", "");
 733                                                 }
 734                                         }
 735                                 }
 736                         }
 737                 }
 738         }
 739 }
 740
 741 function showBlockElement(id) {
 742         var elem = document.getElementById(id);
 743
 744         if (elem) {
 745                 elem.style.display = "block";
 746         } else {
 747                 alert("[showBlockElement] can't find element with id " + id);
 748         }
 749 }
 750
 751 function hideParentElement(e) {
 752         e.parentNode.style.display = "none";
 753 }
 754
 755 function dropboxSelect(e, v) {
 756         for (i = 0; i < e.length; i++) {
 757                 if (e[i].value == v) {
 758                         e.selectedIndex = i;
 759                         break;
 760                 }
 761         }
 762 }