tt-rss.js

   1 var xmlhttp = false;
   2 var total_unread = 0;
   3 var first_run = true;
   4 var display_tags = false;
   5 var global_unread = -1;
   6 var active_title_text = "";
   7 var current_subtitle = "";
   8 var daemon_enabled = false;
   9 var _qfd_deleted_feed = 0;
  10 var firsttime_update = true;
  11 var last_refetch = 0;
  12 var cookie_lifetime = 0;
  13
  14 /*@cc_on @*/
  15 /*@if (@_jscript_version >= 5)
  16 // JScript gives us Conditional compilation, we can cope with old IE versions.
  17 // and security blocked creation of the objects.
  18 try {
  19         xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
  20 } catch (e) {
  21         try {
  22                 xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
  23         } catch (E) {
  24                 xmlhttp = false;
  25         }
  26 }
  27 @end @*/
  28
  29 if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
  30         xmlhttp = new XMLHttpRequest();
  31 }
  32
  33 function toggleTags() {
  34         display_tags = !display_tags;
  35
  36         var p = document.getElementById("dispSwitchPrompt");
  37
  38         if (display_tags) {
  39                 p.innerHTML = "display feeds";
  40         } else {
  41                 p.innerHTML = "display tags";
  42         }
  43
  44         updateFeedList();
  45 }
  46
  47 function dlg_frefresh_callback() {
  48         if (xmlhttp.readyState == 4) {
  49                 notify(xmlhttp.responseText);
  50                 updateFeedList(false, false);
  51                 if (_qfd_deleted_feed) {
  52                         var hframe = document.getElementById("headlines-frame");
  53                         if (hframe) {
  54                                 hframe.src = "backend.php?op=error&msg=No%20feed%20selected.";
  55                         }
  56                 }
  57                 closeInfoBox();
  58         }
  59 }
  60
  61 function hide_unread_callback() {
  62         if (xmlhttp.readyState == 4) {
  63
  64                 try {
  65
  66                         var reply = xmlhttp.responseXML.firstChild.firstChild;
  67                         var value = reply.getAttribute("value");
  68                         var hide_read_feeds = (value != "false")
  69                         var feeds_doc = window.frames["feeds-frame"].document;
  70
  71                         hideOrShowFeeds(feeds_doc, hide_read_feeds);
  72
  73                         if (hide_read_feeds) {
  74                                 setCookie("ttrss_vf_hreadf", 1);
  75                         } else {
  76                                 setCookie("ttrss_vf_hreadf", 0);
  77                         }
  78
  79                 } catch (e) {
  80                         exception_error("hide_unread_callback", e);
  81                 }
  82
  83         }
  84 }
  85
  86 function refetch_callback() {
  87         if (xmlhttp.readyState == 4) {
  88                 try {
  89
  90                         var date = new Date();
  91
  92                         last_refetch = date.getTime() / 1000;
  93
  94                         if (!xmlhttp.responseXML) {
  95                                 notify("refetch_callback: backend did not return valid XML", true, true);
  96                                 return;
  97                         }
  98
  99                         var reply = xmlhttp.responseXML.firstChild;
 100
 101                         if (!reply) {
 102                                 notify("refetch_callback: backend did not return expected XML object", true, true);
 103                                 updateTitle("");
 104                                 return;
 105                         }
 106
 107                         var error_code = reply.getAttribute("error-code");
 108
 109                         if (error_code && error_code != 0) {
 110                                 return fatalError(error_code, reply.getAttribute("error-msg"));
 111                         }
 112
 113                         var f_document = window.frames["feeds-frame"].document;
 114
 115                         parse_counters(reply, f_document, window, true);
 116
 117                         debug("refetch_callback: done");
 118
 119                         if (!daemon_enabled) {
 120                                 notify("All feeds updated.");
 121                                 updateTitle("");
 122                         } else {
 123                                 notify("");
 124                         }
 125                 } catch (e) {
 126                         exception_error("refetch_callback", e);
 127                         updateTitle("");
 128                 }
 129         }
 130 }
 131
 132 function backend_sanity_check_callback() {
 133
 134         if (xmlhttp.readyState == 4) {
 135
 136                 try {
 137
 138                         if (!xmlhttp.responseXML) {
 139                                 fatalError(3, "[D001, Received reply is not XML]: " + xmlhttp.responseText);
 140                                 return;
 141                         }
 142
 143                         var reply = xmlhttp.responseXML.firstChild;
 144
 145                         if (!reply) {
 146                                 fatalError(3, "[D002, Invalid RPC reply]: " + xmlhttp.responseText);
 147                                 return;
 148                         }
 149
 150                         var error_code = reply.getAttribute("error-code");
 151
 152                         if (error_code && error_code != 0) {
 153                                 return fatalError(error_code, reply.getAttribute("error-msg"));
 154                         }
 155
 156                         debug("sanity check ok");
 157
 158                         init_second_stage();
 159
 160                 } catch (e) {
 161                         exception_error("backend_sanity_check_callback", e);
 162                 }
 163         }
 164 }
 165
 166 function scheduleFeedUpdate(force) {
 167
 168         if (!daemon_enabled) {
 169                 notify("Updating feeds, please wait.", true);
 170                 updateTitle("Updating");
 171         }
 172
 173         var query_str = "backend.php?op=rpc&subop=";
 174
 175         if (force) {
 176                 query_str = query_str + "forceUpdateAllFeeds";
 177         } else {
 178                 query_str = query_str + "updateAllFeeds";
 179         }
 180
 181         var omode;
 182
 183         if (firsttime_update && !navigator.userAgent.match("Opera")) {
 184                 firsttime_update = false;
 185                 omode = "T";
 186         } else {
 187                 if (display_tags) {
 188                         omode = "t";
 189                 } else {
 190                         omode = "flc";
 191                 }
 192         }
 193
 194         query_str = query_str + "&omode=" + omode;
 195         query_str = query_str + "&uctr=" + global_unread;
 196
 197         debug("in scheduleFeedUpdate");
 198
 199         var date = new Date();
 200
 201         if (!xmlhttp_ready(xmlhttp) && last_refetch < date.getTime() / 1000 - 60) {
 202                 debug("xmlhttp seems to be stuck, aborting");
 203                 xmlhttp.abort();
 204         }
 205
 206         if (xmlhttp_ready(xmlhttp)) {
 207                 xmlhttp.open("GET", query_str, true);
 208                 xmlhttp.onreadystatechange=refetch_callback;
 209                 xmlhttp.send(null);
 210         } else {
 211                 debug("xmlhttp busy");
 212                 printLockingError();
 213         }
 214 }
 215
 216 function updateFeedList(silent, fetch) {
 217
 218 //      if (silent != true) {
 219 //              notify("Loading feed list...");
 220 //      }
 221
 222         var query_str = "backend.php?op=feeds";
 223
 224         if (display_tags) {
 225                 query_str = query_str + "&tags=1";
 226         }
 227
 228         if (getActiveFeedId()) {
 229                 query_str = query_str + "&actid=" + getActiveFeedId();
 230         }
 231
 232         if (navigator.userAgent.match("Opera")) {
 233                 var date = new Date();
 234                 var timestamp = Math.round(date.getTime() / 1000);
 235                 query_str = query_str + "&ts=" + timestamp
 236         }
 237
 238         if (fetch) query_str = query_str + "&fetch=yes";
 239
 240         var feeds_frame = document.getElementById("feeds-frame");
 241
 242         feeds_frame.src = query_str;
 243 }
 244
 245 function catchupAllFeeds() {
 246
 247         var query_str = "backend.php?op=feeds&subop=catchupAll";
 248
 249         notify("Marking all feeds as read...");
 250
 251         var feeds_frame = document.getElementById("feeds-frame");
 252
 253         feeds_frame.src = query_str;
 254
 255         global_unread = 0;
 256         updateTitle("");
 257
 258 }
 259
 260 function viewCurrentFeed(skip, subop) {
 261
 262         if (getActiveFeedId()) {
 263                 viewfeed(getActiveFeedId(), skip, subop);
 264         } else {
 265                 disableContainerChildren("headlinesToolbar", false, document);
 266                 viewfeed(-1, skip, subop); // FIXME
 267         }
 268 }
 269
 270 function viewfeed(feed, skip, subop) {
 271         var f = window.frames["feeds-frame"];
 272         f.viewfeed(feed, skip, subop);
 273 }
 274
 275 function timeout() {
 276         scheduleFeedUpdate(false);
 277
 278         var refresh_time = getCookie('ttrss_vf_refresh');
 279
 280         if (!refresh_time) refresh_time = 600;
 281
 282         setTimeout("timeout()", refresh_time*1000);
 283 }
 284
 285 function resetSearch() {
 286         var searchbox = document.getElementById("searchbox")
 287
 288         if (searchbox.value != "" && getActiveFeedId()) {
 289                 searchbox.value = "";
 290                 viewfeed(getActiveFeedId(), 0, "");
 291         }
 292 }
 293
 294 function search() {
 295         closeInfoBox();
 296         viewCurrentFeed(0, "");
 297 }
 298
 299 function localPiggieFunction(enable) {
 300         if (enable) {
 301                 var query_str = "backend.php?op=feeds&subop=piggie";
 302
 303                 if (xmlhttp_ready(xmlhttp)) {
 304
 305                         xmlhttp.open("GET", query_str, true);
 306                         xmlhttp.onreadystatechange=feedlist_callback;
 307                         xmlhttp.send(null);
 308                 }
 309         }
 310 }
 311
 312 function localHotkeyHandler(keycode) {
 313
 314         if (keycode == 82) { // r
 315                 return scheduleFeedUpdate(true);
 316         }
 317
 318         if (keycode == 85) { // u
 319                 if (getActiveFeedId()) {
 320                         return viewfeed(getActiveFeedId(), 0, "ForceUpdate");
 321                 }
 322         }
 323
 324         if (keycode == 65) { // a
 325                 return toggleDispRead();
 326         }
 327
 328         var f_doc = window.frames["feeds-frame"].document;
 329         var feedlist = f_doc.getElementById('feedList');
 330
 331         if (keycode == 74) { // j
 332                 var feed = getActiveFeedId();
 333                 var new_feed = getRelativeFeedId(feedlist, feed, 'prev');
 334                 if (new_feed) viewfeed(new_feed, 0, '');
 335         }
 336
 337         if (keycode == 75) { // k
 338                 var feed = getActiveFeedId();
 339                 var new_feed = getRelativeFeedId(feedlist, feed, 'next');
 340                 if (new_feed) viewfeed(new_feed, 0, '');
 341         }
 342
 343 //      notify("KC: " + keycode);
 344
 345 }
 346
 347 // if argument is undefined, current subtitle is not updated
 348 // use blank string to clear subtitle
 349 function updateTitle(s) {
 350         var tmp = "Tiny Tiny RSS";
 351
 352         if (s != undefined) {
 353                 current_subtitle = s;
 354         }
 355
 356         if (global_unread > 0) {
 357                 tmp = tmp + " (" + global_unread + ")";
 358         }
 359
 360         if (current_subtitle) {
 361                 tmp = tmp + " - " + current_subtitle;
 362         }
 363
 364         if (active_title_text.length > 0) {
 365                 tmp = tmp + " > " + active_title_text;
 366         }
 367
 368         document.title = tmp;
 369 }
 370
 371 function genericSanityCheck() {
 372
 373         if (!xmlhttp) fatalError(1);
 374
 375         setCookie("ttrss_vf_test", "TEST");
 376
 377         if (getCookie("ttrss_vf_test") != "TEST") {
 378                 fatalError(2);
 379         }
 380
 381         return true;
 382 }
 383
 384 function init() {
 385
 386         try {
 387
 388                 // this whole shebang is based on http://www.birnamdesigns.com/misc/busted2.html
 389
 390                 if (arguments.callee.done) return;
 391                 arguments.callee.done = true;
 392
 393                 disableContainerChildren("headlinesToolbar", true);
 394
 395                 if (!genericSanityCheck())
 396                         return;
 397
 398                 if (getURLParam('debug')) {
 399                         document.getElementById('debug_output').style.display = 'block';
 400                         debug('debug mode activated');
 401                 }
 402
 403                 xmlhttp.open("GET", "backend.php?op=rpc&subop=sanityCheck", true);
 404                 xmlhttp.onreadystatechange=backend_sanity_check_callback;
 405                 xmlhttp.send(null);
 406
 407         } catch (e) {
 408                 exception_error("init", e);
 409         }
 410 }
 411
 412 function resize_feeds_frame() {
 413         var f = document.getElementById("feeds-frame");
 414         var tf = document.getElementById("mainFooter");
 415         var th = document.getElementById("mainHeader");
 416
 417         f.style.height = document.body.scrollHeight - tf.scrollHeight -
 418                 th.scrollHeight - 50 + "px";
 419 }
 420
 421 function init_second_stage() {
 422
 423         try {
 424
 425                 cookie_lifetime = getCookie("ttrss_cltime");
 426
 427                 delCookie("ttrss_vf_test");
 428
 429                 setCookie("ttrss_vf_actfeed", "");
 430
 431                 updateFeedList(false, false);
 432                 document.onkeydown = hotkey_handler;
 433
 434                 var viewbox = document.getElementById("viewbox");
 435                 var limitbox = document.getElementById("limitbox");
 436
 437                 dropboxSelect(viewbox, getCookie("ttrss_vf_vmode"));
 438                 dropboxSelect(limitbox, getCookie("ttrss_vf_limit"));
 439
 440                 daemon_enabled = getCookie("ttrss_vf_daemon");
 441
 442                 // FIXME should be callled after window resize
 443
 444                 var h = document.getElementById("headlines");
 445                 var c = document.getElementById("content");
 446
 447                 if (navigator.userAgent.match("Opera")) {
 448                         resize_feeds_frame();
 449
 450 /*                      // fix headlines frame height for Opera
 451                         var h = document.getElementById("headlines");
 452                         var c = document.getElementById("content");
 453                         var nh = document.body.scrollHeight * 0.25;
 454
 455                         h.style.height = nh + "px";
 456                         c.style.height = c.scrollHeight - nh + "px"; */
 457
 458                 }
 459
 460                 debug("second stage ok");
 461
 462         } catch (e) {
 463                 exception_error("init_second_stage", e);
 464         }
 465 }
 466
 467 function quickMenuChange() {
 468         var chooser = document.getElementById("quickMenuChooser");
 469         var opid = chooser[chooser.selectedIndex].id;
 470
 471         chooser.selectedIndex = 0;
 472         quickMenuGo(opid);
 473 }
 474
 475 function quickMenuGo(opid) {
 476         try {
 477
 478                 if (opid == "qmcPrefs") {
 479                         gotoPreferences();
 480                 }
 481
 482                 if (opid == "qmcSearch") {
 483                         displayDlg("search", getActiveFeedId());
 484                         return;
 485                 }
 486
 487                 if (opid == "qmcAddFeed") {
 488                         displayDlg("quickAddFeed");
 489                         return;
 490                 }
 491
 492                 if (opid == "qmcRemoveFeed") {
 493                         var actid = getActiveFeedId();
 494
 495                         if (!actid) {
 496                                 alert("Please select some feed first.");
 497                                 return;
 498                         }
 499
 500                         if (confirm("Unsubscribe from current feed?")) {
 501                                 qfdDelete(actid);
 502                         }
 503
 504                         return;
 505                 }
 506
 507                 if (opid == "qmcUpdateFeeds") {
 508                         scheduleFeedUpdate(true);
 509                         return;
 510                 }
 511
 512                 if (opid == "qmcCatchupAll") {
 513                         catchupAllFeeds();
 514                         return;
 515                 }
 516
 517                 if (opid == "qmcShowOnlyUnread") {
 518                         toggleDispRead();
 519                         return;
 520                 }
 521
 522                 if (opid == "qmcAddFilter") {
 523                         displayDlg("quickAddFilter", getActiveFeedId());
 524                 }
 525         } catch (e) {
 526                 exception_error("quickMenuGo", e);
 527         }
 528 }
 529
 530 function qafAdd() {
 531
 532         if (!xmlhttp_ready(xmlhttp)) {
 533                 printLockingError();
 534                 return
 535         }
 536
 537         var link = document.getElementById("qafInput");
 538
 539         if (link.value.length == 0) {
 540                 alert("Error: No feed URL given.");
 541         } else if (!isValidURL(link.value)) {
 542                 alert("Error: Invalid feed URL.");
 543         } else {
 544                 notify("Adding feed...");
 545
 546                 closeInfoBox();
 547
 548                 var cat = document.getElementById("qafCat");
 549                 var cat_id = "";
 550
 551                 if (cat) {
 552                         cat_id = cat[cat.selectedIndex].id;
 553                 } else {
 554                         cat_id = 0;
 555                 }
 556
 557                 var feeds_doc = window.frames["feeds-frame"].document;
 558
 559                 feeds_doc.location.href = "backend.php?op=error&msg=Loading,%20please wait...";
 560
 561                 xmlhttp.open("GET", "backend.php?op=pref-feeds&quiet=1&subop=add&link=" +
 562                         param_escape(link.value) + "&cid=" + param_escape(cat_id), true);
 563                 xmlhttp.onreadystatechange=dlg_frefresh_callback;
 564                 xmlhttp.send(null);
 565
 566                 link.value = "";
 567
 568         }
 569 }
 570
 571 function qfdDelete(feed_id) {
 572
 573         notify("Removing feed...");
 574
 575         if (!xmlhttp_ready(xmlhttp)) {
 576                 printLockingError();
 577                 return
 578         }
 579
 580 //      var feeds_doc = window.frames["feeds-frame"].document;
 581 //      feeds_doc.location.href = "backend.php?op=error&msg=Loading,%20please wait...";
 582
 583         _qfd_deleted_feed = feed_id;
 584
 585         xmlhttp.open("GET", "backend.php?op=pref-feeds&quiet=1&subop=remove&ids=" + feed_id);
 586         xmlhttp.onreadystatechange=dlg_frefresh_callback;
 587         xmlhttp.send(null);
 588 }
 589
 590
 591 function updateFeedTitle(t) {
 592         active_title_text = t;
 593         updateTitle();
 594 }
 595
 596 function toggleDispRead() {
 597         try {
 598
 599                 if (!xmlhttp_ready(xmlhttp)) {
 600                         printLockingError();
 601                         return
 602                 }
 603
 604                 var hide_read_feeds = (getCookie("ttrss_vf_hreadf") == 1);
 605
 606                 hide_read_feeds = !hide_read_feeds;
 607
 608                 var query = "backend.php?op=rpc&subop=setpref" +
 609                         "&key=HIDE_READ_FEEDS&value=" + param_escape(hide_read_feeds);
 610
 611                 xmlhttp.open("GET", query);
 612                 xmlhttp.onreadystatechange=hide_unread_callback;
 613                 xmlhttp.send(null);
 614
 615         } catch (e) {
 616                 exception_error("toggleDispRead", e);
 617         }
 618 }
 619
 620 function debug(msg) {
 621         var c = document.getElementById('debug_output');
 622         if (c && c.style.display == "block") {
 623                 while (c.lastChild != 'undefined' && c.childNodes.length > 20) {
 624                         c.removeChild(c.lastChild);
 625                 }
 626
 627                 var d = new Date();
 628                 var ts = leading_zero(d.getHours()) + ":" + leading_zero(d.getMinutes()) +
 629                         ":" + leading_zero(d.getSeconds());
 630                 c.innerHTML = "<li>[" + ts + "] " + msg + "</li>" + c.innerHTML;
 631         }
 632 }
 633
 634 function fatalError(code, message) {
 635         try {
 636                 var fe = document.getElementById("fatal_error");
 637                 var fc = document.getElementById("fatal_error_msg");
 638
 639                 fc.innerHTML = "Code " + code + ": " + message;
 640
 641                 fe.style.display = "block";
 642
 643         } catch (e) {
 644                 exception_error("fatalError", e);
 645         }
 646 }