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