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 }
 252
 253 function viewfeed(feed, skip, subop) {
 254         var f = window.frames["feeds-frame"];
 255         f.viewfeed(feed, skip, subop);
 256 }
 257
 258 function timeout() {
 259         scheduleFeedUpdate(false);
 260
 261         var refresh_time = getCookie('ttrss_vf_refresh');
 262
 263         if (!refresh_time) refresh_time = 600;
 264
 265         setTimeout("timeout()", refresh_time*1000);
 266 }
 267
 268 function resetSearch() {
 269         var searchbox = document.getElementById("searchbox")
 270
 271         if (searchbox.value != "" && getActiveFeedId()) {
 272                 searchbox.value = "";
 273                 viewfeed(getActiveFeedId(), 0, "");
 274         }
 275 }
 276
 277 function searchCancel() {
 278         closeInfoBox(true);
 279 }
 280
 281 function search() {
 282         closeInfoBox();
 283         viewCurrentFeed(0, "");
 284 }
 285
 286 function localPiggieFunction(enable) {
 287         if (enable) {
 288                 var query_str = "backend.php?op=feeds&subop=piggie";
 289
 290                 if (xmlhttp_ready(xmlhttp)) {
 291
 292                         xmlhttp.open("GET", query_str, true);
 293                         xmlhttp.onreadystatechange=feedlist_callback;
 294                         xmlhttp.send(null);
 295                 }
 296         }
 297 }
 298
 299 function localHotkeyHandler(keycode) {
 300
 301         if (keycode == 82) { // r
 302                 return scheduleFeedUpdate(true);
 303         }
 304
 305         if (keycode == 85) { // u
 306                 if (getActiveFeedId()) {
 307                         return viewfeed(getActiveFeedId(), 0, "ForceUpdate");
 308                 }
 309         }
 310
 311         if (keycode == 65) { // a
 312                 return toggleDispRead();
 313         }
 314
 315         var f_doc = window.frames["feeds-frame"].document;
 316         var feedlist = f_doc.getElementById('feedList');
 317
 318         if (keycode == 74) { // j
 319                 var feed = getActiveFeedId();
 320                 var new_feed = getRelativeFeedId(feedlist, feed, 'prev');
 321                 if (new_feed) viewfeed(new_feed, 0, '');
 322         }
 323
 324         if (keycode == 75) { // k
 325                 var feed = getActiveFeedId();
 326                 var new_feed = getRelativeFeedId(feedlist, feed, 'next');
 327                 if (new_feed) viewfeed(new_feed, 0, '');
 328         }
 329
 330 //      notify("KC: " + keycode);
 331
 332 }
 333
 334 // if argument is undefined, current subtitle is not updated
 335 // use blank string to clear subtitle
 336 function updateTitle(s) {
 337         var tmp = "Tiny Tiny RSS";
 338
 339         if (s != undefined) {
 340                 current_subtitle = s;
 341         }
 342
 343         if (global_unread > 0) {
 344                 tmp = tmp + " (" + global_unread + ")";
 345         }
 346
 347         if (current_subtitle) {
 348                 tmp = tmp + " - " + current_subtitle;
 349         }
 350
 351         if (active_title_text.length > 0) {
 352                 tmp = tmp + " > " + active_title_text;
 353         }
 354
 355         document.title = tmp;
 356 }
 357
 358 function genericSanityCheck() {
 359
 360         if (!xmlhttp) fatalError(1);
 361
 362         setCookie("ttrss_vf_test", "TEST");
 363
 364         if (getCookie("ttrss_vf_test") != "TEST") {
 365                 fatalError(2);
 366         }
 367
 368         return true;
 369 }
 370
 371 function init() {
 372
 373         try {
 374
 375                 // this whole shebang is based on http://www.birnamdesigns.com/misc/busted2.html
 376
 377                 if (arguments.callee.done) return;
 378                 arguments.callee.done = true;
 379
 380                 disableContainerChildren("headlinesToolbar", true);
 381
 382                 Form.disable("main_toolbar_form");
 383
 384                 if (!genericSanityCheck())
 385                         return;
 386
 387                 if (getURLParam('debug')) {
 388                         document.getElementById('debug_output').style.display = 'block';
 389                         debug('debug mode activated');
 390                 }
 391
 392                 xmlhttp.open("GET", "backend.php?op=rpc&subop=sanityCheck", true);
 393                 xmlhttp.onreadystatechange=backend_sanity_check_callback;
 394                 xmlhttp.send(null);
 395
 396         } catch (e) {
 397                 exception_error("init", e);
 398         }
 399 }
 400
 401 function resize_feeds_frame() {
 402         var f = document.getElementById("feeds-frame");
 403         var tf = document.getElementById("mainFooter");
 404         var th = document.getElementById("mainHeader");
 405
 406         f.style.height = document.body.scrollHeight - tf.scrollHeight -
 407                 th.scrollHeight - 50 + "px";
 408 }
 409
 410 function init_second_stage() {
 411
 412         try {
 413
 414                 cookie_lifetime = getCookie("ttrss_cltime");
 415
 416                 delCookie("ttrss_vf_test");
 417
 418                 setCookie("ttrss_vf_actfeed", "");
 419
 420                 updateFeedList(false, false);
 421                 document.onkeydown = hotkey_handler;
 422
 423 /*              var viewbox = document.getElementById("viewbox");
 424                 var limitbox = document.getElementById("limitbox");
 425
 426                 dropboxSelect(viewbox, getCookie("ttrss_vf_vmode"));
 427                 dropboxSelect(limitbox, getCookie("ttrss_vf_limit")); */
 428
 429                 daemon_enabled = getCookie("ttrss_vf_daemon");
 430
 431                 // FIXME should be callled after window resize
 432
 433                 var h = document.getElementById("headlines");
 434                 var c = document.getElementById("content");
 435
 436                 if (navigator.userAgent.match("Opera")) {
 437                         resize_feeds_frame();
 438
 439 /*                      // fix headlines frame height for Opera
 440                         var h = document.getElementById("headlines");
 441                         var c = document.getElementById("content");
 442                         var nh = document.body.scrollHeight * 0.25;
 443
 444                         h.style.height = nh + "px";
 445                         c.style.height = c.scrollHeight - nh + "px"; */
 446
 447                 }
 448
 449                 debug("second stage ok");
 450
 451         } catch (e) {
 452                 exception_error("init_second_stage", e);
 453         }
 454 }
 455
 456 function quickMenuChange() {
 457         var chooser = document.getElementById("quickMenuChooser");
 458         var opid = chooser[chooser.selectedIndex].value;
 459
 460         chooser.selectedIndex = 0;
 461         quickMenuGo(opid);
 462 }
 463
 464 function quickMenuGo(opid) {
 465         try {
 466
 467                 if (opid == "qmcPrefs") {
 468                         gotoPreferences();
 469                 }
 470
 471                 if (opid == "qmcSearch") {
 472                         displayDlg("search", getActiveFeedId());
 473                         return;
 474                 }
 475
 476                 if (opid == "qmcAddFeed") {
 477                         displayDlg("quickAddFeed");
 478                         return;
 479                 }
 480
 481                 if (opid == "qmcRemoveFeed") {
 482                         var actid = getActiveFeedId();
 483
 484                         if (!actid) {
 485                                 alert("Please select some feed first.");
 486                                 return;
 487                         }
 488
 489                         if (confirm("Unsubscribe from current feed?")) {
 490                                 qfdDelete(actid);
 491                         }
 492
 493                         return;
 494                 }
 495
 496                 if (opid == "qmcUpdateFeeds") {
 497                         scheduleFeedUpdate(true);
 498                         return;
 499                 }
 500
 501                 if (opid == "qmcCatchupAll") {
 502                         catchupAllFeeds();
 503                         return;
 504                 }
 505
 506                 if (opid == "qmcShowOnlyUnread") {
 507                         toggleDispRead();
 508                         return;
 509                 }
 510
 511                 if (opid == "qmcAddFilter") {
 512                         displayDlg("quickAddFilter", getActiveFeedId());
 513                 }
 514         } catch (e) {
 515                 exception_error("quickMenuGo", e);
 516         }
 517 }
 518
 519 function qfdDelete(feed_id) {
 520
 521         notify("Removing feed...");
 522
 523         if (!xmlhttp_ready(xmlhttp)) {
 524                 printLockingError();
 525                 return
 526         }
 527
 528 //      var feeds_doc = window.frames["feeds-frame"].document;
 529 //      feeds_doc.location.href = "backend.php?op=error&msg=Loading,%20please wait...";
 530
 531         _qfd_deleted_feed = feed_id;
 532
 533         xmlhttp.open("GET", "backend.php?op=pref-feeds&quiet=1&subop=remove&ids=" + feed_id);
 534         xmlhttp.onreadystatechange=dlg_frefresh_callback;
 535         xmlhttp.send(null);
 536 }
 537
 538
 539 function updateFeedTitle(t) {
 540         active_title_text = t;
 541         updateTitle();
 542 }
 543
 544 function toggleDispRead() {
 545         try {
 546
 547                 if (!xmlhttp_ready(xmlhttp)) {
 548                         printLockingError();
 549                         return
 550                 }
 551
 552                 var hide_read_feeds = (getCookie("ttrss_vf_hreadf") == 1);
 553
 554                 hide_read_feeds = !hide_read_feeds;
 555
 556                 var query = "backend.php?op=rpc&subop=setpref" +
 557                         "&key=HIDE_READ_FEEDS&value=" + param_escape(hide_read_feeds);
 558
 559                 xmlhttp.open("GET", query);
 560                 xmlhttp.onreadystatechange=hide_unread_callback;
 561                 xmlhttp.send(null);
 562
 563         } catch (e) {
 564                 exception_error("toggleDispRead", e);
 565         }
 566 }
 567
 568 function debug(msg) {
 569         var c = document.getElementById('debug_output');
 570         if (c && c.style.display == "block") {
 571                 while (c.lastChild != 'undefined' && c.childNodes.length > 20) {
 572                         c.removeChild(c.lastChild);
 573                 }
 574
 575                 var d = new Date();
 576                 var ts = leading_zero(d.getHours()) + ":" + leading_zero(d.getMinutes()) +
 577                         ":" + leading_zero(d.getSeconds());
 578                 c.innerHTML = "<li>[" + ts + "] " + msg + "</li>" + c.innerHTML;
 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 }