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