prefs.js

   1 var xmlhttp = false;
   2
   3 var active_feed_cat = false;
   4 var active_label = false;
   5 var active_tab = false;
   6 var feed_to_expand = false;
   7
   8 var xmlhttp = Ajax.getTransport();
   9
  10 var init_params = new Array();
  11
  12 var caller_subop = false;
  13
  14 var sanity_check_done = false;
  15
  16 function infobox_callback() {
  17         if (xmlhttp.readyState == 4) {
  18                 infobox_callback2(xmlhttp);
  19         }
  20 }
  21
  22 function infobox_submit_callback() {
  23         if (xmlhttp.readyState == 4) {
  24                 infobox_submit_callback2(xmlhttp);
  25         }
  26 }
  27
  28
  29 function replace_pubkey_callback() {
  30         if (xmlhttp.readyState == 4) {
  31                 try {
  32                         var link = document.getElementById("pubGenAddress");
  33
  34                         if (xmlhttp.responseXML) {
  35
  36                                 var new_link = xmlhttp.responseXML.getElementsByTagName("link")[0];
  37
  38                                 if (new_link) {
  39                                         link.href = new_link.firstChild.nodeValue;
  40                                         link.innerHTML = new_link.firstChild.nodeValue;
  41
  42                                         new Effect.Highlight(link);
  43
  44                                         notify_info("Address changed.");
  45                                 } else {
  46                                         notify_error("Could not change address.");
  47                                 }
  48
  49                         } else {
  50                                 notify_error("Could not change address.");
  51                         }
  52                 } catch (e) {
  53                         exception_error("replace_pubkey_callback", e);
  54                 }
  55         }
  56 }
  57
  58 function expand_feed_callback() {
  59         if (xmlhttp.readyState == 4) {
  60                 try {
  61                         var container = document.getElementById("BRDET-" + feed_to_expand);
  62                         container.innerHTML=xmlhttp.responseText;
  63 //                      container.style.display = "block";
  64                         Effect.Appear(container, {duration : 0.5});
  65                 } catch (e) {
  66                         exception_error("expand_feed_callback", e);
  67                 }
  68         }
  69 }
  70
  71 function feedlist_callback() {
  72         if (xmlhttp.readyState == 4) {
  73                 try {
  74                         var container = document.getElementById('prefContent');
  75                         container.innerHTML=xmlhttp.responseText;
  76                         selectTab("feedConfig", true);
  77
  78                         if (caller_subop) {
  79                                 var tuple = caller_subop.split(":");
  80                                 if (tuple[0] == 'editFeed') {
  81                                         window.setTimeout('editFeed('+tuple[1]+')', 100);
  82                                 }
  83
  84                                 caller_subop = false;
  85                         }
  86                         if (typeof correctPNG != 'undefined') {
  87                                 correctPNG();
  88                         }
  89                         notify("");
  90                 } catch (e) {
  91                         exception_error("feedlist_callback", e);
  92                 }
  93         }
  94 }
  95
  96 /* stub for subscription dialog */
  97
  98 function dlg_frefresh_callback(transport) {
  99
 100         try {
 101                 var container = document.getElementById('prefContent');
 102                 container.innerHTML=transport.responseText;
 103                 selectTab("feedConfig", true);
 104
 105                 if (caller_subop) {
 106                         var tuple = caller_subop.split(":");
 107                         if (tuple[0] == 'editFeed') {
 108                                 window.setTimeout('editFeed('+tuple[1]+')', 100);
 109                         }
 110
 111                         caller_subop = false;
 112                 }
 113                 if (typeof correctPNG != 'undefined') {
 114                         correctPNG();
 115                 }
 116                 notify("");
 117         } catch (e) {
 118                 exception_error("feedlist_callback", e);
 119         }
 120
 121 }
 122
 123 function filterlist_callback() {
 124         var container = document.getElementById('prefContent');
 125         if (xmlhttp.readyState == 4) {
 126                 container.innerHTML=xmlhttp.responseText;
 127                 if (typeof correctPNG != 'undefined') {
 128                         correctPNG();
 129                 }
 130                 notify("");
 131         }
 132 }
 133
 134 function labellist_callback() {
 135         var container = document.getElementById('prefContent');
 136         if (xmlhttp.readyState == 4) {
 137                 closeInfoBox();
 138                 container.innerHTML=xmlhttp.responseText;
 139                 if (active_label) {
 140                         var row = document.getElementById("LILRR-" + active_label);
 141                         if (row) {
 142                                 if (!row.className.match("Selected")) {
 143                                         row.className = row.className + "Selected";
 144                                 }
 145                         }
 146                         var checkbox = document.getElementById("LICHK-" + active_label);
 147
 148                         if (checkbox) {
 149                                 checkbox.checked = true;
 150                         }
 151                 }
 152                 if (typeof correctPNG != 'undefined') {
 153                         correctPNG();
 154                 }
 155                 notify("");
 156         }
 157 }
 158
 159 function feed_browser_callback() {
 160         var container = document.getElementById('prefContent');
 161         if (xmlhttp.readyState == 4) {
 162                 container.innerHTML=xmlhttp.responseText;
 163                 notify("");
 164         }
 165 }
 166
 167 function userlist_callback() {
 168         var container = document.getElementById('prefContent');
 169         if (xmlhttp.readyState == 4) {
 170                 container.innerHTML=xmlhttp.responseText;
 171                 notify("");
 172         }
 173 }
 174
 175 function prefslist_callback() {
 176         var container = document.getElementById('prefContent');
 177         if (xmlhttp.readyState == 4) {
 178
 179                 container.innerHTML=xmlhttp.responseText;
 180
 181                 notify("");
 182         }
 183 }
 184
 185 function gethelp_callback() {
 186         var container = document.getElementById('prefHelpBox');
 187         if (xmlhttp.readyState == 4) {
 188
 189                 container.innerHTML = xmlhttp.responseText;
 190                 container.style.display = "block";
 191
 192         }
 193 }
 194
 195 function notify_callback() {
 196         if (xmlhttp.readyState == 4) {
 197                 notify_info(xmlhttp.responseText);
 198         }
 199 }
 200
 201 function prefs_reset_callback() {
 202         if (xmlhttp.readyState == 4) {
 203                 notify_info(xmlhttp.responseText);
 204                 selectTab();
 205         }
 206 }
 207
 208
 209 function changepass_callback() {
 210         try {
 211                 if (xmlhttp.readyState == 4) {
 212
 213                         if (xmlhttp.responseText.indexOf("ERROR: ") == 0) {
 214                                 notify_error(xmlhttp.responseText.replace("ERROR: ", ""));
 215                         } else {
 216                                 notify_info(xmlhttp.responseText);
 217                                 var warn = document.getElementById("default_pass_warning");
 218                                 if (warn) warn.style.display = "none";
 219                         }
 220
 221                         document.forms['change_pass_form'].reset();
 222
 223                 }
 224         } catch (e) {
 225                 exception_error("changepass_callback", e);
 226         }
 227 }
 228
 229 function infobox_feed_cat_callback() {
 230         if (xmlhttp.readyState == 4) {
 231                 try {
 232
 233                         infobox_callback();
 234
 235                         if (document.getElementById("prefFeedCatList")) {
 236                                 var elems = document.getElementById("prefFeedCatList").getElementsByTagName("SPAN");
 237
 238                                 for (var i = 0; i < elems.length; i++) {
 239                                         if (elems[i].id && elems[i].id.match("FCATT-")) {
 240                                                 var cat_id = elems[i].id.replace("FCATT-", "");
 241
 242                                                 new Ajax.InPlaceEditor(elems[i],
 243                                                         'backend.php?op=pref-feeds&subop=editCats&action=save&cid=' + cat_id);
 244                                         }
 245                                 }
 246                         }
 247
 248                 } catch (e) {
 249                         exception_error("infobox_feed_cat_callback", e);
 250                 }
 251         }
 252 }
 253
 254 function updateFeedList(sort_key) {
 255
 256         if (!xmlhttp_ready(xmlhttp)) {
 257                 printLockingError();
 258                 return
 259         }
 260
 261         var feed_search = document.getElementById("feed_search");
 262         var search = "";
 263         if (feed_search) { search = feed_search.value; }
 264
 265         var slat = document.getElementById("show_last_article_times");
 266
 267         var slat_checked = false;
 268         if (slat) {
 269                 slat_checked = slat.checked;
 270         }
 271
 272         xmlhttp.open("GET", "backend.php?op=pref-feeds" +
 273                 "&sort=" + param_escape(sort_key) +
 274                 "&slat=" + param_escape(slat_checked) +
 275                 "&search=" + param_escape(search), true);
 276         xmlhttp.onreadystatechange=feedlist_callback;
 277         xmlhttp.send(null);
 278
 279 }
 280
 281 function updateUsersList(sort_key) {
 282
 283         if (!xmlhttp_ready(xmlhttp)) {
 284                 printLockingError();
 285                 return
 286         }
 287
 288         xmlhttp.open("GET", "backend.php?op=pref-users&sort="
 289                 + param_escape(sort_key), true);
 290         xmlhttp.onreadystatechange=userlist_callback;
 291         xmlhttp.send(null);
 292
 293 }
 294
 295 function addLabel() {
 296
 297         if (!xmlhttp_ready(xmlhttp)) {
 298                 printLockingError();
 299                 return
 300         }
 301
 302         var form = document.forms['label_edit_form'];
 303
 304         var sql_exp = form.sql_exp.value;
 305         var description = form.description.value;
 306
 307         if (sql_exp == "") {
 308                 alert(__("Can't create label: missing SQL expression."));
 309                 return false;
 310         }
 311
 312         if (description == "") {
 313                 alert(__("Can't create label: missing caption."));
 314                 return false;
 315         }
 316
 317         var query = Form.serialize("label_edit_form");
 318
 319         xmlhttp.open("GET", "backend.php?op=pref-labels&subop=add&" + query, true);
 320         xmlhttp.onreadystatechange=infobox_submit_callback;
 321         xmlhttp.send(null);
 322 }
 323
 324 function addFeed() {
 325
 326         if (!xmlhttp_ready(xmlhttp)) {
 327                 printLockingError();
 328                 return
 329         }
 330
 331         var link = document.getElementById("fadd_link");
 332
 333         if (link.value.length == 0) {
 334                 alert(__("Error: No feed URL given."));
 335         } else if (!isValidURL(link.value)) {
 336                 alert(__("Error: Invalid feed URL."));
 337         } else {
 338                 notify_progress("Adding feed...");
 339
 340                 xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=add&from=tt-rss&feed_url=" +
 341                         param_escape(link.value), true);
 342                 xmlhttp.onreadystatechange=feedlist_callback;
 343                 xmlhttp.send(null);
 344
 345                 link.value = "";
 346
 347         }
 348
 349 }
 350
 351 function addFeedCat() {
 352
 353         if (!xmlhttp_ready(xmlhttp)) {
 354                 printLockingError();
 355                 return
 356         }
 357
 358         var cat = document.getElementById("fadd_cat");
 359
 360         if (cat.value.length == 0) {
 361                 alert(__("Can't add category: no name specified."));
 362         } else {
 363                 notify_progress("Adding feed category...");
 364
 365                 xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=editCats&action=add&cat=" +
 366                         param_escape(cat.value), true);
 367                 xmlhttp.onreadystatechange=infobox_callback;
 368                 xmlhttp.send(null);
 369
 370                 link.value = "";
 371
 372         }
 373
 374 }
 375 function addUser() {
 376
 377         if (!xmlhttp_ready(xmlhttp)) {
 378                 printLockingError();
 379                 return
 380         }
 381
 382         var sqlexp = document.getElementById("uadd_box");
 383
 384         if (sqlexp.value.length == 0) {
 385                 alert(__("Can't add user: no login specified."));
 386         } else {
 387                 notify_progress("Adding user...");
 388
 389                 xmlhttp.open("GET", "backend.php?op=pref-users&subop=add&login=" +
 390                         param_escape(sqlexp.value), true);
 391
 392                 xmlhttp.onreadystatechange=userlist_callback;
 393                 xmlhttp.send(null);
 394
 395                 sqlexp.value = "";
 396         }
 397
 398 }
 399
 400 function editLabel(id) {
 401
 402         if (!xmlhttp_ready(xmlhttp)) {
 403                 printLockingError();
 404                 return
 405         }
 406
 407         notify_progress("Loading, please wait...");
 408
 409         document.getElementById("label_create_btn").disabled = true;
 410
 411         active_label = id;
 412
 413         selectTableRowsByIdPrefix('prefLabelList', 'LILRR-', 'LICHK-', false);
 414         selectTableRowById('LILRR-'+id, 'LICHK-'+id, true);
 415
 416         xmlhttp.open("GET", "backend.php?op=pref-labels&subop=edit&id=" +
 417                 param_escape(id), true);
 418         xmlhttp.onreadystatechange=infobox_callback;
 419         xmlhttp.send(null);
 420
 421 }
 422
 423 function editUser(id) {
 424
 425         if (!xmlhttp_ready(xmlhttp)) {
 426                 printLockingError();
 427                 return
 428         }
 429
 430         notify_progress("Loading, please wait...");
 431
 432         selectTableRowsByIdPrefix('prefUserList', 'UMRR-', 'UMCHK-', false);
 433         selectTableRowById('UMRR-'+id, 'UMCHK-'+id, true);
 434
 435         xmlhttp.open("GET", "backend.php?op=pref-users&subop=edit&id=" +
 436                 param_escape(id), true);
 437         xmlhttp.onreadystatechange=infobox_callback;
 438         xmlhttp.send(null);
 439
 440 }
 441
 442 function editFilter(id) {
 443
 444         if (!xmlhttp_ready(xmlhttp)) {
 445                 printLockingError();
 446                 return
 447         }
 448
 449         notify_progress("Loading, please wait...");
 450
 451         document.getElementById("create_filter_btn").disabled = true;
 452
 453         selectTableRowsByIdPrefix('prefFilterList', 'FILRR-', 'FICHK-', false);
 454         selectTableRowById('FILRR-'+id, 'FICHK-'+id, true);
 455
 456         xmlhttp.open("GET", "backend.php?op=pref-filters&subop=edit&id=" + param_escape(id), true);
 457         xmlhttp.onreadystatechange=infobox_callback;
 458         xmlhttp.send(null);
 459 }
 460
 461 function editFeed(feed) {
 462
 463 //      notify("Editing feed...");
 464
 465         if (!xmlhttp_ready(xmlhttp)) {
 466                 printLockingError();
 467                 return
 468         }
 469
 470         notify_progress("Loading, please wait...");
 471
 472         document.getElementById("subscribe_to_feed_btn").disabled = true;
 473
 474         try {
 475                 document.getElementById("top25_feeds_btn").disabled = true;
 476         } catch (e) {
 477                 // this button is not always available, no-op if not found
 478         }
 479
 480         // clean selection from all rows & select row being edited
 481         selectTableRowsByIdPrefix('prefFeedList', 'FEEDR-', 'FRCHK-', false);
 482         selectTableRowById('FEEDR-'+feed, 'FRCHK-'+feed, true);
 483
 484         xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=editfeed&id=" +
 485                 param_escape(feed), true);
 486
 487         xmlhttp.onreadystatechange=infobox_callback;
 488         xmlhttp.send(null);
 489
 490 }
 491
 492 function editFeedCat(cat) {
 493
 494         if (!xmlhttp_ready(xmlhttp)) {
 495                 printLockingError();
 496                 return
 497         }
 498
 499         notify_progress("Loading, please wait...");
 500
 501         active_feed_cat = cat;
 502
 503         xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=editCats&action=edit&id=" +
 504                 param_escape(cat), true);
 505         xmlhttp.onreadystatechange=infobox_callback;
 506         xmlhttp.send(null);
 507
 508 }
 509
 510 function getSelectedLabels() {
 511         return getSelectedTableRowIds("prefLabelList", "LILRR");
 512 }
 513
 514 function getSelectedUsers() {
 515         return getSelectedTableRowIds("prefUserList", "UMRR");
 516 }
 517
 518 function getSelectedFeeds() {
 519         return getSelectedTableRowIds("prefFeedList", "FEEDR");
 520 }
 521
 522 function getSelectedFilters() {
 523         return getSelectedTableRowIds("prefFilterList", "FILRR");
 524 }
 525
 526 function getSelectedFeedCats() {
 527         return getSelectedTableRowIds("prefFeedCatList", "FCATR");
 528 }
 529
 530 function getSelectedFeedsFromBrowser() {
 531
 532         var list = document.getElementById("browseFeedList");
 533         if (!list) list = document.getElementById("browseBigFeedList");
 534
 535         var selected = new Array();
 536
 537         for (i = 0; i < list.childNodes.length; i++) {
 538                 var child = list.childNodes[i];
 539                 if (child.id && child.id.match("FBROW-")) {
 540                         var id = child.id.replace("FBROW-", "");
 541
 542                         var cb = document.getElementById("FBCHK-" + id);
 543
 544                         if (cb.checked) {
 545                                 selected.push(id);
 546                         }
 547                 }
 548         }
 549
 550         return selected;
 551 }
 552
 553 function removeSelectedLabels() {
 554
 555         if (!xmlhttp_ready(xmlhttp)) {
 556                 printLockingError();
 557                 return
 558         }
 559
 560         var sel_rows = getSelectedLabels();
 561
 562         if (sel_rows.length > 0) {
 563
 564                 var ok = confirm(__("Remove selected labels?"));
 565
 566                 if (ok) {
 567                         notify_progress("Removing selected labels...");
 568
 569                         xmlhttp.open("GET", "backend.php?op=pref-labels&subop=remove&ids="+
 570                                 param_escape(sel_rows.toString()), true);
 571                         xmlhttp.onreadystatechange=labellist_callback;
 572                         xmlhttp.send(null);
 573                 }
 574         } else {
 575                 alert(__("No labels are selected."));
 576         }
 577
 578         return false;
 579 }
 580
 581 function removeSelectedUsers() {
 582
 583         if (!xmlhttp_ready(xmlhttp)) {
 584                 printLockingError();
 585                 return
 586         }
 587
 588         var sel_rows = getSelectedUsers();
 589
 590         if (sel_rows.length > 0) {
 591
 592                 var ok = confirm(__("Remove selected users?"));
 593
 594                 if (ok) {
 595                         notify_progress("Removing selected users...");
 596
 597                         xmlhttp.open("GET", "backend.php?op=pref-users&subop=remove&ids="+
 598                                 param_escape(sel_rows.toString()), true);
 599                         xmlhttp.onreadystatechange=userlist_callback;
 600                         xmlhttp.send(null);
 601                 }
 602
 603         } else {
 604                 alert(__("No users are selected."));
 605         }
 606
 607         return false;
 608 }
 609
 610 function removeSelectedFilters() {
 611
 612         if (!xmlhttp_ready(xmlhttp)) {
 613                 printLockingError();
 614                 return
 615         }
 616
 617         var sel_rows = getSelectedFilters();
 618
 619         if (sel_rows.length > 0) {
 620
 621                 var ok = confirm(__("Remove selected filters?"));
 622
 623                 if (ok) {
 624                         notify_progress("Removing selected filters...");
 625
 626                         xmlhttp.open("GET", "backend.php?op=pref-filters&subop=remove&ids="+
 627                                 param_escape(sel_rows.toString()), true);
 628                         xmlhttp.onreadystatechange=filterlist_callback;
 629                         xmlhttp.send(null);
 630                 }
 631         } else {
 632                 alert(__("No filters are selected."));
 633         }
 634
 635         return false;
 636 }
 637
 638
 639 function removeSelectedFeeds() {
 640
 641         if (!xmlhttp_ready(xmlhttp)) {
 642                 printLockingError();
 643                 return
 644         }
 645
 646         var sel_rows = getSelectedFeeds();
 647
 648         if (sel_rows.length > 0) {
 649
 650                 var ok = confirm(__("Unsubscribe from selected feeds?"));
 651
 652                 if (ok) {
 653
 654                         notify_progress("Unsubscribing from selected feeds...");
 655
 656                         xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=remove&ids="+
 657                                 param_escape(sel_rows.toString()), true);
 658                         xmlhttp.onreadystatechange=feedlist_callback;
 659                         xmlhttp.send(null);
 660                 }
 661
 662         } else {
 663
 664                 alert(__("No feeds are selected."));
 665
 666         }
 667
 668         return false;
 669 }
 670
 671 function clearSelectedFeeds() {
 672
 673         if (!xmlhttp_ready(xmlhttp)) {
 674                 printLockingError();
 675                 return
 676         }
 677
 678         var sel_rows = getSelectedFeeds();
 679
 680         if (sel_rows.length > 1) {
 681                 alert(__("Please select only one feed."));
 682                 return;
 683         }
 684
 685         if (sel_rows.length > 0) {
 686
 687                 var ok = confirm(__("Erase all non-starred articles in selected feed?"));
 688
 689                 if (ok) {
 690                         notify_progress("Clearing selected feed...");
 691                         clearFeedArticles(sel_rows[0]);
 692                 }
 693
 694         } else {
 695
 696                 alert(__("No feeds are selected."));
 697
 698         }
 699
 700         return false;
 701 }
 702
 703 function purgeSelectedFeeds() {
 704
 705         if (!xmlhttp_ready(xmlhttp)) {
 706                 printLockingError();
 707                 return
 708         }
 709
 710         var sel_rows = getSelectedFeeds();
 711
 712         if (sel_rows.length > 0) {
 713
 714                 var pr = prompt(__("How many days of articles to keep (0 - use default)?"), "0");
 715
 716                 if (pr != undefined) {
 717                         notify_progress("Purging selected feed...");
 718
 719                         var query = "backend.php?op=rpc&subop=purge&ids="+
 720                                 param_escape(sel_rows.toString()) + "&days=" + pr;
 721
 722                         debug(query);
 723
 724                         new Ajax.Request(query, {
 725                                 onComplete: function(transport) {
 726                                         notify('');
 727                                 } });
 728                 }
 729
 730         } else {
 731
 732                 alert(__("No feeds are selected."));
 733
 734         }
 735
 736         return false;
 737 }
 738
 739 function removeSelectedFeedCats() {
 740
 741         if (!xmlhttp_ready(xmlhttp)) {
 742                 printLockingError();
 743                 return
 744         }
 745
 746         var sel_rows = getSelectedFeedCats();
 747
 748         if (sel_rows.length > 0) {
 749
 750                 var ok = confirm(__("Remove selected categories?"));
 751
 752                 if (ok) {
 753                         notify_progress("Removing selected categories...");
 754
 755                         xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=editCats&action=remove&ids="+
 756                                 param_escape(sel_rows.toString()), true);
 757                         xmlhttp.onreadystatechange=infobox_callback;
 758                         xmlhttp.send(null);
 759                 }
 760
 761         } else {
 762
 763                 alert(__("No categories are selected."));
 764
 765         }
 766
 767         return false;
 768 }
 769
 770 function feedEditCancel() {
 771
 772         if (!xmlhttp_ready(xmlhttp)) {
 773                 printLockingError();
 774                 return
 775         }
 776
 777         document.getElementById("subscribe_to_feed_btn").disabled = false;
 778
 779         try {
 780                 document.getElementById("top25_feeds_btn").disabled = false;
 781         } catch (e) {
 782                 // this button is not always available, no-op if not found
 783         }
 784
 785         closeInfoBox();
 786
 787         selectPrefRows('feed', false); // cleanup feed selection
 788
 789         return false;
 790 }
 791
 792 function feedCatEditCancel() {
 793
 794         if (!xmlhttp_ready(xmlhttp)) {
 795                 printLockingError();
 796                 return
 797         }
 798
 799         active_feed_cat = false;
 800
 801 //      notify("Operation cancelled.");
 802
 803         xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=editCats", true);
 804         xmlhttp.onreadystatechange=infobox_callback;
 805         xmlhttp.send(null);
 806
 807         return false;
 808 }
 809
 810 function feedEditSave() {
 811
 812         try {
 813
 814                 if (!xmlhttp_ready(xmlhttp)) {
 815                         printLockingError();
 816                         return
 817                 }
 818
 819                 // FIXME: add parameter validation
 820
 821                 var query = Form.serialize("edit_feed_form");
 822
 823                 notify_progress("Saving feed...");
 824
 825                 xmlhttp.open("POST", "backend.php", true);
 826                 xmlhttp.onreadystatechange=feedlist_callback;
 827                 xmlhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
 828                 xmlhttp.send(query);
 829
 830                 closeInfoBox();
 831
 832                 return false;
 833
 834         } catch (e) {
 835                 exception_error("feedEditSave", e);
 836         }
 837 }
 838
 839 function feedCatEditSave() {
 840
 841         if (!xmlhttp_ready(xmlhttp)) {
 842                 printLockingError();
 843                 return
 844         }
 845
 846         notify_progress("Saving category...");
 847
 848         var query = Form.serialize("feed_cat_edit_form");
 849
 850         xmlhttp.open("GET", "backend.php?" + query, true);
 851         xmlhttp.onreadystatechange=infobox_callback;
 852         xmlhttp.send(null);
 853
 854         active_feed_cat = false;
 855
 856         return false;
 857 }
 858
 859
 860
 861 function displayHelpInfobox(topic_id) {
 862
 863         var url = "backend.php?op=help&tid=" + param_escape(topic_id);
 864
 865         var w = window.open(url, "ttrss_help",
 866                 "status=0,toolbar=0,location=0,width=450,height=500,scrollbars=1,menubar=0");
 867
 868         return false;
 869 }
 870
 871 function labelEditCancel() {
 872
 873         if (!xmlhttp_ready(xmlhttp)) {
 874                 printLockingError();
 875                 return
 876         }
 877
 878         document.getElementById("label_create_btn").disabled = false;
 879
 880         active_label = false;
 881
 882         selectPrefRows('label', false); // cleanup feed selection
 883         closeInfoBox();
 884
 885         return false;
 886 }
 887
 888 function userEditCancel() {
 889
 890         if (!xmlhttp_ready(xmlhttp)) {
 891                 printLockingError();
 892                 return
 893         }
 894
 895         selectPrefRows('user', false); // cleanup feed selection
 896         closeInfoBox();
 897
 898         return false;
 899 }
 900
 901 function filterEditCancel() {
 902
 903         if (!xmlhttp_ready(xmlhttp)) {
 904                 printLockingError();
 905                 return
 906         }
 907
 908         document.getElementById("create_filter_btn").disabled = false;
 909
 910         selectPrefRows('filter', false); // cleanup feed selection
 911         closeInfoBox();
 912
 913         return false;
 914 }
 915
 916 function labelEditSave() {
 917
 918         var label = active_label;
 919
 920         if (!xmlhttp_ready(xmlhttp)) {
 921                 printLockingError();
 922                 return
 923         }
 924
 925 /*      if (!is_opera()) {
 926
 927                 var sql_exp = document.forms["label_edit_form"].sql_exp.value;
 928                 var description = document.forms["label_edit_form"].description.value;
 929
 930                 if (sql_exp.length == 0) {
 931                         alert("SQL Expression cannot be blank.");
 932                         return false;
 933                 }
 934
 935                 if (description.length == 0) {
 936                         alert("Caption field cannot be blank.");
 937                         return false;
 938                 }
 939         } */
 940
 941         closeInfoBox();
 942
 943         notify_progress("Saving label...");
 944
 945         active_label = false;
 946
 947         query = Form.serialize("label_edit_form");
 948
 949         xmlhttp.open("GET", "backend.php?" + query, true);
 950         xmlhttp.onreadystatechange=labellist_callback;
 951         xmlhttp.send(null);
 952
 953         return false;
 954 }
 955
 956 function userEditSave() {
 957
 958         if (!xmlhttp_ready(xmlhttp)) {
 959                 printLockingError();
 960                 return
 961         }
 962
 963         var login = document.forms["user_edit_form"].login.value;
 964
 965         if (login.length == 0) {
 966                 alert(__("Login field cannot be blank."));
 967                 return;
 968         }
 969
 970         notify_progress("Saving user...");
 971
 972         closeInfoBox();
 973
 974         var query = Form.serialize("user_edit_form");
 975
 976         xmlhttp.open("GET", "backend.php?" + query, true);
 977         xmlhttp.onreadystatechange=userlist_callback;
 978         xmlhttp.send(null);
 979
 980         return false;
 981 }
 982
 983
 984 function filterEditSave() {
 985
 986         if (!xmlhttp_ready(xmlhttp)) {
 987                 printLockingError();
 988                 return
 989         }
 990
 991 /*      if (!is_opera()) {
 992                 var reg_exp = document.forms["filter_edit_form"].reg_exp.value;
 993
 994                 if (reg_exp.length == 0) {
 995                         alert("Filter expression field cannot be blank.");
 996                         return;
 997                 }
 998         } */
 999
1000         notify_progress("Saving filter...");
1001
1002         var query = Form.serialize("filter_edit_form");
1003
1004         closeInfoBox();
1005
1006         document.getElementById("create_filter_btn").disabled = false;
1007
1008         xmlhttp.open("GET", "backend.php?" + query, true);
1009         xmlhttp.onreadystatechange=filterlist_callback;
1010         xmlhttp.send(null);
1011
1012         return false;
1013 }
1014
1015 function editSelectedLabel() {
1016         var rows = getSelectedLabels();
1017
1018         if (rows.length == 0) {
1019                 alert(__("No labels are selected."));
1020                 return;
1021         }
1022
1023         if (rows.length > 1) {
1024                 alert(__("Please select only one label."));
1025                 return;
1026         }
1027
1028         notify("");
1029
1030         editLabel(rows[0]);
1031
1032 }
1033
1034 function editSelectedUser() {
1035         var rows = getSelectedUsers();
1036
1037         if (rows.length == 0) {
1038                 alert(__("No users are selected."));
1039                 return;
1040         }
1041
1042         if (rows.length > 1) {
1043                 alert(__("Please select only one user."));
1044                 return;
1045         }
1046
1047         notify("");
1048
1049         editUser(rows[0]);
1050 }
1051
1052 function resetSelectedUserPass() {
1053         var rows = getSelectedUsers();
1054
1055         if (rows.length == 0) {
1056                 alert(__("No users are selected."));
1057                 return;
1058         }
1059
1060         if (rows.length > 1) {
1061                 alert(__("Please select only one user."));
1062                 return;
1063         }
1064
1065         var ok = confirm(__("Reset password of selected user?"));
1066
1067         if (ok) {
1068                 notify_progress("Resetting password for selected user...");
1069
1070                 var id = rows[0];
1071
1072                 xmlhttp.open("GET", "backend.php?op=pref-users&subop=resetPass&id=" +
1073                         param_escape(id), true);
1074                 xmlhttp.onreadystatechange=userlist_callback;
1075                 xmlhttp.send(null);
1076         }
1077 }
1078
1079 function selectedUserDetails() {
1080
1081         if (!xmlhttp_ready(xmlhttp)) {
1082                 printLockingError();
1083                 return
1084         }
1085
1086         var rows = getSelectedUsers();
1087
1088         if (rows.length == 0) {
1089                 alert(__("No users are selected."));
1090                 return;
1091         }
1092
1093         if (rows.length > 1) {
1094                 alert(__("Please select only one user."));
1095                 return;
1096         }
1097
1098         notify_progress("Loading, please wait...");
1099
1100         var id = rows[0];
1101
1102         xmlhttp.open("GET", "backend.php?op=user-details&id=" + id, true);
1103         xmlhttp.onreadystatechange=infobox_callback;
1104         xmlhttp.send(null);
1105
1106 }
1107
1108 function selectedFeedDetails() {
1109
1110         if (!xmlhttp_ready(xmlhttp)) {
1111                 printLockingError();
1112                 return
1113         }
1114
1115         var rows = getSelectedFeeds();
1116
1117         if (rows.length == 0) {
1118                 alert(__("No feeds are selected."));
1119                 return;
1120         }
1121
1122         if (rows.length > 1) {
1123                 alert(__("Please select only one feed."));
1124                 return;
1125         }
1126
1127 //      var id = rows[0];
1128
1129         notify("");
1130
1131         xmlhttp.open("GET", "backend.php?op=feed-details&id=" +
1132                 param_escape(rows.toString()), true);
1133         xmlhttp.onreadystatechange=infobox_callback;
1134         xmlhttp.send(null);
1135
1136 }
1137
1138 function editSelectedFilter() {
1139         var rows = getSelectedFilters();
1140
1141         if (rows.length == 0) {
1142                 alert(__("No filters are selected."));
1143                 return;
1144         }
1145
1146         if (rows.length > 1) {
1147                 alert(__("Please select only one filter."));
1148                 return;
1149         }
1150
1151         notify("");
1152
1153         editFilter(rows[0]);
1154
1155 }
1156
1157
1158 function editSelectedFeed() {
1159         var rows = getSelectedFeeds();
1160
1161         if (rows.length == 0) {
1162                 alert(__("No feeds are selected."));
1163                 return;
1164         }
1165
1166         if (rows.length > 1) {
1167                 alert(__("Please select one feed."));
1168                 return;
1169         }
1170
1171         notify("");
1172
1173         editFeed(rows[0]);
1174
1175 }
1176
1177 function editSelectedFeedCat() {
1178         var rows = getSelectedFeedCats();
1179
1180         if (rows.length == 0) {
1181                 alert(__("No categories are selected."));
1182                 return;
1183         }
1184
1185         if (rows.length > 1) {
1186                 alert(__("Please select only one category."));
1187                 return;
1188         }
1189
1190         notify("");
1191
1192         editFeedCat(rows[0]);
1193
1194 }
1195
1196 function localPiggieFunction(enable) {
1197         if (enable) {
1198                 debug("I LOVEDED IT!");
1199                 var piggie = document.getElementById("piggie");
1200
1201                 Element.show(piggie);
1202                 Position.Center(piggie);
1203                 Effect.Puff(piggie);
1204
1205         }
1206 }
1207
1208 function validateOpmlImport() {
1209
1210         var opml_file = document.getElementById("opml_file");
1211
1212         if (opml_file.value.length == 0) {
1213                 alert(__("No OPML file to upload."));
1214                 return false;
1215         } else {
1216                 return true;
1217         }
1218 }
1219
1220 function updateFilterList(sort_key) {
1221
1222         if (!xmlhttp_ready(xmlhttp)) {
1223                 printLockingError();
1224                 return
1225         }
1226
1227         xmlhttp.open("GET", "backend.php?op=pref-filters&sort=" +
1228                 param_escape(sort_key), true);
1229         xmlhttp.onreadystatechange=filterlist_callback;
1230         xmlhttp.send(null);
1231
1232 }
1233
1234 function updateLabelList(sort_key) {
1235
1236         if (!xmlhttp_ready(xmlhttp)) {
1237                 printLockingError();
1238                 return
1239         }
1240
1241         xmlhttp.open("GET", "backend.php?op=pref-labels&sort=" +
1242                 param_escape(sort_key), true);
1243         xmlhttp.onreadystatechange=labellist_callback;
1244         xmlhttp.send(null);
1245 }
1246
1247 function updatePrefsList() {
1248
1249         if (!xmlhttp_ready(xmlhttp)) {
1250                 printLockingError();
1251                 return
1252         }
1253
1254         xmlhttp.open("GET", "backend.php?op=pref-prefs", true);
1255         xmlhttp.onreadystatechange=prefslist_callback;
1256         xmlhttp.send(null);
1257
1258 }
1259
1260 function selectTab(id, noupdate, subop) {
1261
1262 //      alert(id);
1263
1264         if (!id) id = active_tab;
1265
1266         try {
1267
1268                 if (!xmlhttp_ready(xmlhttp)) {
1269                         printLockingError();
1270                         return
1271                 }
1272
1273                 try {
1274                         var c = document.getElementById('prefContent');
1275                         c.scrollTop = 0;
1276                 } catch (e) { };
1277
1278                 if (!noupdate) {
1279
1280                         debug("selectTab: " + id + "(NU: " + noupdate + ")");
1281
1282                         notify_progress("Loading, please wait...");
1283
1284                         // close active infobox if needed
1285                         closeInfoBox();
1286
1287                         // clean up all current selections, just in case
1288                         active_feed_cat = false;
1289                         active_label = false;
1290
1291 //                      Effect.Fade("prefContent", {duration: 1, to: 0.01,
1292 //                              queue: { position:'end', scope: 'FEED_TAB', limit: 1 } } );
1293
1294                         if (id == "feedConfig") {
1295                                 updateFeedList();
1296                         } else if (id == "filterConfig") {
1297                                 updateFilterList();
1298                         } else if (id == "labelConfig") {
1299                                 updateLabelList();
1300                         } else if (id == "genConfig") {
1301                                 updatePrefsList();
1302                         } else if (id == "userConfig") {
1303                                 updateUsersList();
1304                         } else if (id == "feedBrowser") {
1305                                 updateBigFeedBrowser();
1306                         }
1307                 }
1308
1309                 var tab = document.getElementById(active_tab + "Tab");
1310
1311                 if (tab) {
1312                         if (tab.className.match("Selected")) {
1313                                 tab.className = "prefsTab";
1314                         }
1315                 }
1316
1317                 tab = document.getElementById(id + "Tab");
1318
1319                 if (tab) {
1320                         if (!tab.className.match("Selected")) {
1321                                 tab.className = tab.className + "Selected";
1322                         }
1323                 }
1324
1325                 active_tab = id;
1326
1327         } catch (e) {
1328                 exception_error("selectTab", e);
1329         }
1330 }
1331
1332 function backend_sanity_check_callback() {
1333
1334         if (xmlhttp.readyState == 4) {
1335
1336                 try {
1337
1338                         if (sanity_check_done) {
1339                                 fatalError(11, "Sanity check request received twice. This can indicate "+
1340                               "presence of Firebug or some other disrupting extension. "+
1341                                         "Please disable it and try again.");
1342                                 return;
1343                         }
1344
1345                         if (!xmlhttp.responseXML) {
1346                                 fatalError(3, "[D001, Received reply is not XML]: " + xmlhttp.responseText);
1347                                 return;
1348                         }
1349
1350                         var reply = xmlhttp.responseXML.firstChild.firstChild;
1351
1352                         if (!reply) {
1353                                 fatalError(3, "[D002, Invalid RPC reply]: " + xmlhttp.responseText);
1354                                 return;
1355                         }
1356
1357                         var error_code = reply.getAttribute("error-code");
1358
1359                         if (error_code && error_code != 0) {
1360                                 return fatalError(error_code, reply.getAttribute("error-msg"));
1361                         }
1362
1363                         debug("sanity check ok");
1364
1365                         var params = reply.nextSibling;
1366
1367                         if (params) {
1368                                 debug('reading init-params...');
1369                                 var param = params.firstChild;
1370
1371                                 while (param) {
1372                                         var k = param.getAttribute("key");
1373                                         var v = param.getAttribute("value");
1374                                         debug(k + " => " + v);
1375                                         init_params[k] = v;
1376                                         param = param.nextSibling;
1377                                 }
1378                         }
1379
1380                         sanity_check_done = true;
1381
1382                         init_second_stage();
1383
1384                 } catch (e) {
1385                         exception_error("backend_sanity_check_callback", e);
1386                 }
1387         }
1388 }
1389
1390 function init_second_stage() {
1391
1392         try {
1393                 active_tab = getInitParam("prefs_active_tab");
1394                 if (!active_tab || active_tab == '0') active_tab = "genConfig";
1395
1396                 document.onkeydown = pref_hotkey_handler;
1397
1398                 var tab = getURLParam('tab');
1399
1400                 caller_subop = getURLParam('subop');
1401
1402                 if (tab) {
1403                         active_tab = tab;
1404                 }
1405
1406                 if (navigator.userAgent.match("Opera")) {
1407                         setTimeout("selectTab()", 500);
1408                 } else {
1409                         selectTab(active_tab);
1410                 }
1411                 notify("");
1412         } catch (e) {
1413                 exception_error("init_second_stage", e);
1414         }
1415 }
1416
1417 function init() {
1418
1419         try {
1420
1421                 if (arguments.callee.done) return;
1422                 arguments.callee.done = true;
1423
1424                 if (getURLParam('debug')) {
1425                         document.getElementById('debug_output').style.display = 'block';
1426                         debug('debug mode activated');
1427                 }
1428
1429                 // IE kludge
1430                 if (!xmlhttp) {
1431                         document.getElementById("prefContent").innerHTML =
1432                                 "<b>Fatal error:</b> This program needs XmlHttpRequest " +
1433                                 "to function properly. Your browser doesn't seem to support it.";
1434                         return;
1435                 }
1436
1437                 xmlhttp.open("GET", "backend.php?op=rpc&subop=sanityCheck", true);
1438                 xmlhttp.onreadystatechange=backend_sanity_check_callback;
1439                 xmlhttp.send(null);
1440
1441         } catch (e) {
1442                 exception_error("init", e);
1443         }
1444 }
1445
1446 function categorizeSelectedFeeds() {
1447
1448         if (!xmlhttp_ready(xmlhttp)) {
1449                 printLockingError();
1450                 return
1451         }
1452
1453         var sel_rows = getSelectedFeeds();
1454
1455         var cat_sel = document.getElementById("sfeed_set_fcat");
1456         var cat_id = cat_sel[cat_sel.selectedIndex].value;
1457
1458         if (sel_rows.length > 0) {
1459
1460                 notify_progress("Changing category of selected feeds...");
1461
1462                 xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=categorize&ids="+
1463                         param_escape(sel_rows.toString()) + "&cat_id=" + param_escape(cat_id), true);
1464                 xmlhttp.onreadystatechange=feedlist_callback;
1465                 xmlhttp.send(null);
1466
1467         } else {
1468
1469                 alert(__("No feeds are selected."));
1470
1471         }
1472
1473 }
1474
1475 function validatePrefsReset() {
1476         try {
1477                 var ok = confirm(__("Reset to defaults?"));
1478
1479                 if (ok) {
1480
1481                         var query = Form.serialize("pref_prefs_form");
1482                         query = query + "&subop=reset-config";
1483                         debug(query);
1484
1485                         xmlhttp.open("POST", "backend.php", true);
1486                         xmlhttp.onreadystatechange=prefs_reset_callback;
1487                         xmlhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
1488                         xmlhttp.send(query);
1489                 }
1490
1491         } catch (e) {
1492                 exception_error("validatePrefsSave", e);
1493         }
1494
1495         return false;
1496
1497 }
1498
1499 function browseFeeds(limit) {
1500
1501         xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=browse", true);
1502         xmlhttp.onreadystatechange=infobox_callback;
1503         xmlhttp.send(null);
1504
1505 }
1506
1507 function feedBrowserSubscribe() {
1508         try {
1509
1510                 var selected = getSelectedFeedsFromBrowser();
1511
1512                 if (selected.length > 0) {
1513                         closeInfoBox();
1514                         xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=massSubscribe&ids="+
1515                                 param_escape(selected.toString()), true);
1516                         xmlhttp.onreadystatechange=feedlist_callback;
1517                         xmlhttp.send(null);
1518                 } else {
1519                         alert(__("No feeds are selected."));
1520                 }
1521
1522         } catch (e) {
1523                 exception_error("feedBrowserSubscribe", e);
1524         }
1525 }
1526
1527 function updateBigFeedBrowser(limit) {
1528
1529         if (!xmlhttp_ready(xmlhttp)) {
1530                 printLockingError();
1531                 return
1532         }
1533
1534         var query = "backend.php?op=pref-feed-browser";
1535
1536         var limit_sel = document.getElementById("feedBrowserLimit");
1537
1538         if (limit_sel) {
1539                 var limit = limit_sel[limit_sel.selectedIndex].value;
1540                 query = query + "&limit=" + param_escape(limit);
1541         }
1542
1543         xmlhttp.open("GET", query, true);
1544         xmlhttp.onreadystatechange=feed_browser_callback;
1545         xmlhttp.send(null);
1546 }
1547
1548 function browserToggleExpand(id) {
1549         try {
1550 /*              if (feed_to_expand && feed_to_expand != id) {
1551                         var d = document.getElementById("BRDET-" + feed_to_expand);
1552                         d.style.display = "none";
1553                 } */
1554
1555                 if (!xmlhttp_ready(xmlhttp)) {
1556                         printLockingError();
1557                         return
1558                 }
1559
1560 /*              if (feed_to_expand && id != feed_to_expand) {
1561                         Effect.Fade('BRDET-' + feed_to_expand, {duration : 0.5});
1562                 } */
1563
1564                 var d = document.getElementById("BRDET-" + id);
1565
1566                 if (Element.visible(d)) {
1567                         Effect.Fade(d, {duration : 0.5});
1568                 } else {
1569                         feed_to_expand = id;
1570
1571                         xmlhttp.open("GET", "backend.php?op=pref-feed-browser&subop=details&id="
1572                                 + param_escape(id), true);
1573                         xmlhttp.onreadystatechange=expand_feed_callback;
1574                         xmlhttp.send(null);
1575                 }
1576
1577         } catch (e) {
1578                 exception_error("browserToggleExpand", e);
1579         }
1580 }
1581
1582 function selectPrefRows(kind, select) {
1583
1584         if (kind) {
1585                 var opbarid = false;
1586                 var nchk = false;
1587                 var nrow = false;
1588                 var lname = false;
1589
1590                 if (kind == "feed") {
1591                         opbarid = "feedOpToolbar";
1592                         nrow = "FEEDR-";
1593                         nchk = "FRCHK-";
1594                         lname = "prefFeedList";
1595                 } else if (kind == "fcat") {
1596                         opbarid = "catOpToolbar";
1597                         nrow = "FCATR-";
1598                         nchk = "FCCHK-";
1599                         lname = "prefFeedCatList";
1600                 } else if (kind == "filter") {
1601                         opbarid = "filterOpToolbar";
1602                         nrow = "FILRR-";
1603                         nchk = "FICHK-";
1604                         lname = "prefFilterList";
1605                 } else if (kind == "label") {
1606                         opbarid = "labelOpToolbar";
1607                         nrow = "LILRR-";
1608                         nchk = "LICHK-";
1609                         lname = "prefLabelList";
1610                 } else if (kind == "user") {
1611                         opbarid = "userOpToolbar";
1612                         nrow = "UMRR-";
1613                         nchk = "UMCHK-";
1614                         lname = "prefUserList";
1615                 }
1616
1617                 if (opbarid) {
1618                         selectTableRowsByIdPrefix(lname, nrow, nchk, select);
1619                         disableContainerChildren(opbarid, !select);
1620                 }
1621
1622         }
1623 }
1624
1625
1626 function toggleSelectPrefRow(sender, kind) {
1627
1628         toggleSelectRow(sender);
1629
1630         if (kind) {
1631                 var opbarid = false;
1632                 var nsel = -1;
1633
1634                 if (kind == "feed") {
1635                         opbarid = "feedOpToolbar";
1636                         nsel = getSelectedFeeds();
1637                 } else if (kind == "fcat") {
1638                         opbarid = "catOpToolbar";
1639                         nsel = getSelectedFeedCats();
1640                 } else if (kind == "filter") {
1641                         opbarid = "filterOpToolbar";
1642                         nsel = getSelectedFilters();
1643                 } else if (kind == "label") {
1644                         opbarid = "labelOpToolbar";
1645                         nsel = getSelectedLabels();
1646                 } else if (kind == "user") {
1647                         opbarid = "userOpToolbar";
1648                         nsel = getSelectedUsers();
1649                 }
1650
1651                 if (opbarid && nsel != -1) {
1652                         disableContainerChildren(opbarid, nsel == false);
1653                 }
1654
1655         }
1656 }
1657
1658 function toggleSelectFBListRow(sender) {
1659         toggleSelectListRow(sender);
1660         disableContainerChildren("fbrOpToolbar", getSelectedFeedsFromBrowser() == 0);
1661 }
1662
1663 var seq = "";
1664
1665 function pref_hotkey_handler(e) {
1666         try {
1667
1668                 var keycode;
1669
1670                 if (!hotkeys_enabled) return;
1671
1672                 if (window.event) {
1673                         keycode = window.event.keyCode;
1674                 } else if (e) {
1675                         keycode = e.which;
1676                 }
1677
1678                 if (keycode == 13 || keycode == 27) {
1679                         seq = "";
1680                 } else {
1681                         seq = seq + "" + keycode;
1682                 }
1683
1684
1685         if (document.getElementById("piggie")) {
1686
1687                 if (seq.match("807371717369")) {
1688                         seq = "";
1689                         localPiggieFunction(true);
1690                 } else {
1691                         localPiggieFunction(false);
1692                 }
1693         }
1694
1695         } catch (e) {
1696                 exception_error("pref_hotkey_handler", e);
1697         }
1698 }
1699
1700 function editFeedCats() {
1701         if (!xmlhttp_ready(xmlhttp)) {
1702                 printLockingError();
1703                 return
1704         }
1705
1706         document.getElementById("subscribe_to_feed_btn").disabled = true;
1707
1708         try {
1709                 document.getElementById("top25_feeds_btn").disabled = true;
1710         } catch (e) {
1711                 // this button is not always available, no-op if not found
1712         }
1713
1714         xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=editCats", true);
1715         xmlhttp.onreadystatechange=infobox_feed_cat_callback;
1716         xmlhttp.send(null);
1717 }
1718
1719 function showFeedsWithErrors() {
1720         displayDlg('feedUpdateErrors');
1721 }
1722
1723 function changeUserPassword() {
1724
1725         try {
1726
1727                 if (!xmlhttp_ready(xmlhttp)) {
1728                         printLockingError();
1729                         return false;
1730                 }
1731
1732                 var f = document.forms["change_pass_form"];
1733
1734                 if (f) {
1735                         if (f.OLD_PASSWORD.value == "") {
1736                                 new Effect.Highlight(f.OLD_PASSWORD);
1737                                 notify_error("Old password cannot be blank.");
1738                                 return false;
1739                         }
1740
1741                         if (f.NEW_PASSWORD.value == "") {
1742                                 new Effect.Highlight(f.NEW_PASSWORD);
1743                                 notify_error("New password cannot be blank.");
1744                                 return false;
1745                         }
1746
1747                         if (f.CONFIRM_PASSWORD.value == "") {
1748                                 new Effect.Highlight(f.CONFIRM_PASSWORD);
1749                                 notify_error("Entered passwords do not match.");
1750                                 return false;
1751                         }
1752
1753                         if (f.CONFIRM_PASSWORD.value != f.NEW_PASSWORD.value) {
1754                                 new Effect.Highlight(f.CONFIRM_PASSWORD);
1755                                 new Effect.Highlight(f.NEW_PASSWORD);
1756                                 notify_error("Entered passwords do not match.");
1757                                 return false;
1758                         }
1759
1760                 }
1761
1762                 var query = Form.serialize("change_pass_form");
1763
1764                 notify_progress("Trying to change password...");
1765
1766                 xmlhttp.open("POST", "backend.php", true);
1767                 xmlhttp.onreadystatechange=changepass_callback;
1768                 xmlhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
1769                 xmlhttp.send(query);
1770
1771         } catch (e) {
1772                 exception_error("changeUserPassword", e);
1773         }
1774
1775         return false;
1776 }
1777
1778 function changeUserEmail() {
1779
1780         try {
1781
1782                 if (!xmlhttp_ready(xmlhttp)) {
1783                         printLockingError();
1784                         return false;
1785                 }
1786
1787                 var query = Form.serialize("change_email_form");
1788
1789                 notify_progress("Trying to change e-mail...");
1790
1791                 xmlhttp.open("POST", "backend.php", true);
1792                 xmlhttp.onreadystatechange=notify_callback;
1793                 xmlhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
1794                 xmlhttp.send(query);
1795
1796         } catch (e) {
1797                 exception_error("changeUserPassword", e);
1798         }
1799
1800         return false;
1801
1802 }
1803
1804 function feedlistToggleSLAT() {
1805         notify_progress("Loading, please wait...");
1806         updateFeedList()
1807 }
1808
1809 function pubRegenKey() {
1810
1811         if (!xmlhttp_ready(xmlhttp)) {
1812                 printLockingError();
1813                 return false;
1814         }
1815
1816         var ok = confirm(__("Replace current publishing address with a new one?"));
1817
1818         if (ok) {
1819
1820                 notify_progress("Trying to change address...");
1821
1822                 xmlhttp.open("GET", "backend.php?op=rpc&subop=regenPubKey");
1823                 xmlhttp.onreadystatechange=replace_pubkey_callback;
1824                 xmlhttp.send(null);
1825         }
1826
1827         return false;
1828 }
1829
1830 function validatePrefsSave() {
1831         try {
1832
1833                 var ok = confirm(__("Save current configuration?"));
1834
1835                 if (ok) {
1836
1837                         var query = Form.serialize("pref_prefs_form");
1838                         query = query + "&subop=save-config";
1839                         debug(query);
1840
1841                         xmlhttp.open("POST", "backend.php", true);
1842                         xmlhttp.onreadystatechange=notify_callback;
1843                         xmlhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
1844                         xmlhttp.send(query);
1845                 }
1846
1847         } catch (e) {
1848                 exception_error("validatePrefsSave", e);
1849         }
1850
1851         return false;
1852 }
1853
1854 function feedActionChange() {
1855         try {
1856                 var chooser = document.getElementById("feedActionChooser");
1857                 var opid = chooser[chooser.selectedIndex].value;
1858
1859                 chooser.selectedIndex = 0;
1860                 feedActionGo(opid);
1861         } catch (e) {
1862                 exception_error("feedActionChange", e);
1863         }
1864 }
1865
1866 function feedActionGo(op) {
1867         try {
1868                 if (op == "facEdit") {
1869                         editSelectedFeed();
1870                 }
1871
1872                 if (op == "facClear") {
1873                         clearSelectedFeeds();
1874                 }
1875
1876                 if (op == "facPurge") {
1877                         purgeSelectedFeeds();
1878                 }
1879
1880                 if (op == "facEditCats") {
1881                         editFeedCats();
1882                 }
1883
1884                 if (op == "facUnsubscribe") {
1885                         removeSelectedFeeds();
1886                 }
1887
1888         } catch (e) {
1889                 exception_error("feedActionGo", e);
1890
1891         }
1892 }
1893
1894 function clearFeedArticles(feed_id) {
1895
1896         notify_progress("Clearing feed...");
1897
1898         var query = "backend.php?op=pref-feeds&quiet=1&subop=clear&id=" + feed_id;
1899
1900         new Ajax.Request(query, {
1901                 onComplete: function(transport) {
1902                                 notify('');
1903                         } });
1904
1905         return false;
1906 }
1907
1908