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                 localHotkeyHandler(keycode);
 134         }
 135
 136 }
 137
 138 function cleanSelectedList(element) {
 139         var content = document.getElementById(element);
 140
 141         if (!document.getElementById("feedCatHolder")) {
 142                 for (i = 0; i < content.childNodes.length; i++) {
 143                         var child = content.childNodes[i];
 144                         child.className = child.className.replace("Selected", "");
 145                 }
 146         } else {
 147                 for (i = 0; i < content.childNodes.length; i++) {
 148                         var child = content.childNodes[i];
 149
 150                         if (child.id == "feedCatHolder") {
 151                                 var fcat = child.firstChild;
 152                                 for (j = 0; j < fcat.childNodes.length; j++) {
 153                                         var feed = fcat.childNodes[j];
 154                                         feed.className = feed.className.replace("Selected", "");
 155                                 }
 156                         }
 157                 }
 158
 159         }
 160 }
 161
 162
 163 function cleanSelected(element) {
 164         var content = document.getElementById(element);
 165
 166         for (i = 0; i < content.rows.length; i++) {
 167                 content.rows[i].className = content.rows[i].className.replace("Selected", "");
 168         }
 169
 170 }
 171
 172 function getVisibleUnreadHeadlines() {
 173         var content = document.getElementById("headlinesList");
 174
 175         var rows = new Array();
 176
 177         for (i = 0; i < content.rows.length; i++) {
 178                 var row_id = content.rows[i].id.replace("RROW-", "");
 179                 if (row_id.length > 0 && content.rows[i].className.match("Unread")) {
 180                                 rows.push(row_id);
 181                 }
 182         }
 183         return rows;
 184 }
 185
 186 function getVisibleHeadlineIds() {
 187
 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) {
 195                                 rows.push(row_id);
 196                 }
 197         }
 198         return rows;
 199 }
 200
 201 function getFirstVisibleHeadlineId() {
 202         var rows = getVisibleHeadlineIds();
 203         return rows[0];
 204 }
 205
 206 function getLastVisibleHeadlineId() {
 207         var rows = getVisibleHeadlineIds();
 208         return rows[rows.length-1];
 209 }
 210
 211 function markHeadline(id) {
 212         var row = document.getElementById("RROW-" + id);
 213         if (row) {
 214                 var is_active = false;
 215
 216                 if (row.className.match("Active")) {
 217                         is_active = true;
 218                 }
 219                 row.className = row.className.replace("Selected", "");
 220                 row.className = row.className.replace("Active", "");
 221                 row.className = row.className.replace("Insensitive", "");
 222
 223                 if (is_active) {
 224                         row.className = row.className = "Active";
 225                 }
 226
 227                 row.className = row.className + "Selected";
 228
 229         }
 230 }
 231
 232 function getFeedIds() {
 233         var content = document.getElementById("feedsList");
 234
 235         var rows = new Array();
 236
 237         for (i = 0; i < content.rows.length; i++) {
 238                 var id = content.rows[i].id.replace("FEEDR-", "");
 239                 if (id.length > 0) {
 240                         rows.push(id);
 241                 }
 242         }
 243
 244         return rows;
 245 }
 246
 247 function setCookie(name, value, expires, path, domain, secure) {
 248         document.cookie= name + "=" + escape(value) +
 249                 ((expires) ? "; expires=" + expires.toGMTString() : "") +
 250                 ((path) ? "; path=" + path : "") +
 251                 ((domain) ? "; domain=" + domain : "") +
 252                 ((secure) ? "; secure" : "");
 253 }
 254
 255 function getCookie(name) {
 256
 257         var dc = document.cookie;
 258         var prefix = name + "=";
 259         var begin = dc.indexOf("; " + prefix);
 260         if (begin == -1) {
 261             begin = dc.indexOf(prefix);
 262             if (begin != 0) return null;
 263         }
 264         else {
 265             begin += 2;
 266         }
 267         var end = document.cookie.indexOf(";", begin);
 268         if (end == -1) {
 269             end = dc.length;
 270         }
 271         return unescape(dc.substring(begin + prefix.length, end));
 272 }
 273
 274 function disableContainerChildren(id, disable, doc) {
 275
 276         if (!doc) doc = document;
 277
 278         var container = doc.getElementById(id);
 279
 280         for (var i = 0; i < container.childNodes.length; i++) {
 281                 var child = container.childNodes[i];
 282
 283                 try {
 284                         child.disabled = disable;
 285                 } catch (E) {
 286
 287                 }
 288
 289                 if (disable) {
 290                         if (child.className && child.className.match("button")) {
 291                                 child.className = "disabledButton";
 292                         }
 293                 } else {
 294                         if (child.className && child.className.match("disabledButton")) {
 295                                 child.className = "button";
 296                         }
 297                 }
 298         }
 299
 300 }
 301
 302 function gotoPreferences() {
 303         document.location.href = "prefs.php";
 304 }
 305
 306 function gotoMain() {
 307         document.location.href = "tt-rss.php";
 308 }
 309
 310 function gotoExportOpml() {
 311         document.location.href = "opml.php?op=Export";
 312 }
 313
 314 function getActiveFeedId() {
 315         return getCookie("ttrss_vf_actfeed");
 316 }
 317
 318 function setActiveFeedId(id) {
 319         return setCookie("ttrss_vf_actfeed", id);
 320 }
 321
 322 var xmlhttp_rpc = false;
 323
 324 /*@cc_on @*/
 325 /*@if (@_jscript_version >= 5)
 326 // JScript gives us Conditional compilation, we can cope with old IE versions.
 327 // and security blocked creation of the objects.
 328 try {
 329         xmlhttp_rpc = new ActiveXObject("Msxml2.XMLHTTP");
 330 } catch (e) {
 331         try {
 332                 xmlhttp_rpc = new ActiveXObject("Microsoft.XMLHTTP");
 333         } catch (E) {
 334                 xmlhttp_rpc = false;
 335         }
 336 }
 337 @end @*/
 338
 339 if (!xmlhttp_rpc && typeof XMLHttpRequest!='undefined') {
 340         xmlhttp_rpc = new XMLHttpRequest();
 341 }
 342
 343 function all_counters_callback() {
 344         if (xmlhttp_rpc.readyState == 4) {
 345                 try {
 346                         if (!xmlhttp_rpc.responseXML) {
 347                                 notify("[all_counters_callback] backend did not return valid XML");
 348                                 return;
 349                         }
 350
 351                         var reply = xmlhttp_rpc.responseXML.firstChild;
 352
 353                         var f_document = parent.frames["feeds-frame"].document;
 354
 355                         for (var l = 0; l < reply.childNodes.length; l++) {
 356                                 var id = reply.childNodes[l].getAttribute("id");
 357                                 var ctr = reply.childNodes[l].getAttribute("counter");
 358
 359                                 var feedctr = f_document.getElementById("FEEDCTR-" + id);
 360                                 var feedu = f_document.getElementById("FEEDU-" + id);
 361                                 var feedr = f_document.getElementById("FEEDR-" + id);
 362
 363                                 if (feedctr && feedu && feedr) {
 364
 365                                         feedu.innerHTML = ctr;
 366
 367                                         if (ctr > 0) {
 368                                                 feedctr.className = "odd";
 369                                                 if (!feedr.className.match("Unread")) {
 370                                                         var is_selected = feedr.className.match("Selected");
 371
 372                                                         feedr.className = feedr.className.replace("Selected", "");
 373                                                         feedr.className = feedr.className.replace("Unread", "");
 374
 375                                                         feedr.className = feedr.className + "Unread";
 376
 377                                                         if (is_selected) {
 378                                                                 feedr.className = feedr.className + "Selected";
 379                                                         }
 380
 381                                                 }
 382                                         } else {
 383                                                 feedctr.className = "invisible";
 384                                                 feedr.className = feedr.className.replace("Unread", "");
 385                                         }
 386                                 }
 387                         }
 388                 } catch (e) {
 389                         exception_error("all_counters_callback", e);
 390                 }
 391         }
 392 }
 393
 394 function update_all_counters(feed) {
 395         if (xmlhttp_ready(xmlhttp_rpc)) {
 396                 var query = "backend.php?op=rpc&subop=getAllCounters";
 397
 398                 if (feed > 0) {
 399                         query = query + "&aid=" + feed;
 400                 }
 401
 402                 xmlhttp_rpc.open("GET", query, true);
 403                 xmlhttp_rpc.onreadystatechange=all_counters_callback;
 404                 xmlhttp_rpc.send(null);
 405         }
 406 }
 407
 408 function popupHelp(tid) {
 409         var w = window.open("backend.php?op=help&tid=" + tid,
 410                 "Popup Help",
 411                 "menubar=no,location=no,resizable=yes,scrollbars=yes,status=no");
 412 }
 413
 414 /** * @(#)isNumeric.js * * Copyright (c) 2000 by Sundar Dorai-Raj
 415   * * @author Sundar Dorai-Raj
 416   * * Email: sdoraira@vt.edu
 417   * * This program is free software; you can redistribute it and/or
 418   * * modify it under the terms of the GNU General Public License
 419   * * as published by the Free Software Foundation; either version 2
 420   * * of the License, or (at your option) any later version,
 421   * * provided that any use properly credits the author.
 422   * * This program is distributed in the hope that it will be useful,
 423   * * but WITHOUT ANY WARRANTY; without even the implied warranty of
 424   * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 425   * * GNU General Public License for more details at http://www.gnu.org * * */
 426
 427   var numbers=".0123456789";
 428   function isNumeric(x) {
 429     // is x a String or a character?
 430     if(x.length>1) {
 431       // remove negative sign
 432       x=Math.abs(x)+"";
 433       for(j=0;j<x.length;j++) {
 434         // call isNumeric recursively for each character
 435         number=isNumeric(x.substring(j,j+1));
 436         if(!number) return number;
 437       }
 438       return number;
 439     }
 440     else {
 441       // if x is number return true
 442       if(numbers.indexOf(x)>=0) return true;
 443       return false;
 444     }
 445   }
 446
 447
 448 function hideOrShowFeeds(doc, hide) {
 449
 450         var css_rules = doc.styleSheets[0].cssRules;
 451
 452         for (i = 0; i < css_rules.length; i++) {
 453                 var rule = css_rules[i];
 454
 455                 if (rule.selectorText == "ul.feedList li.feed") {
 456                         if (!hide) {
 457                                 rule.style.display = "block";
 458                         } else {
 459                                 rule.style.display = "none";
 460                         }
 461                 }
 462
 463         }
 464
 465 }
 466
 467 function fatalError(code) {
 468         window.location = "error.php?c=" + param_escape(code);
 469 }
 470
 471 function selectTableRow(r, do_select) {
 472         r.className = r.className.replace("Selected", "");
 473
 474         if (do_select) {
 475                 r.className = r.className + "Selected";
 476         }
 477 }
 478
 479 function selectTableRowsByIdPrefix(content_id, prefix, check_prefix, do_select,
 480         classcheck) {
 481
 482         var content = document.getElementById(content_id);
 483
 484         if (!content) {
 485                 alert("[selectTableRows] Element " + content_id + " not found.");
 486                 return;
 487         }
 488
 489         for (i = 0; i < content.rows.length; i++) {
 490                 if (!classcheck || content.rows[i].className.match(classcheck)) {
 491
 492                         if (content.rows[i].id.match(prefix)) {
 493                                 selectTableRow(content.rows[i], do_select);
 494                         }
 495
 496                         var row_id = content.rows[i].id.replace(prefix, "");
 497                         var check = document.getElementById(check_prefix + row_id);
 498
 499                         if (check) {
 500                                 check.checked = do_select;
 501                         }
 502                 }
 503         }
 504 }
 505
 506 function getSelectedTableRowIds(content_id, prefix) {
 507
 508         var content = document.getElementById(content_id);
 509
 510         if (!content) {
 511                 alert("[getSelectedTableRowIds] Element " + content_id + " not found.");
 512                 return;
 513         }
 514
 515         var sel_rows = new Array();
 516
 517         for (i = 0; i < content.rows.length; i++) {
 518                 if (content.rows[i].id.match(prefix) &&
 519                                 content.rows[i].className.match("Selected")) {
 520
 521                         var row_id = content.rows[i].id.replace(prefix + "-", "");
 522                         sel_rows.push(row_id);
 523                 }
 524         }
 525
 526         return sel_rows;
 527
 528 }
 529
 530 function toggleSelectRow(sender) {
 531         var parent_row = sender.parentNode.parentNode;
 532
 533         if (sender.checked) {
 534                 if (!parent_row.className.match("Selected")) {
 535                         parent_row.className = parent_row.className + "Selected";
 536                 }
 537         } else {
 538                 if (parent_row.className.match("Selected")) {
 539                         parent_row.className = parent_row.className.replace("Selected", "");
 540                 }
 541         }
 542 }
 543
 544