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 var init_params = new Array();
  17
  18 function toggleTags() {
  19         display_tags = !display_tags;
  20
  21         var p = document.getElementById("dispSwitchPrompt");
  22
  23         if (display_tags) {
  24                 p.innerHTML = "display feeds";
  25         } else {
  26                 p.innerHTML = "display tags";
  27         }
  28
  29         updateFeedList();
  30 }
  31
  32 function dlg_frefresh_callback() {
  33         if (xmlhttp.readyState == 4) {
  34                 notify(xmlhttp.responseText);
  35                 updateFeedList(false, false);
  36                 if (_qfd_deleted_feed) {
  37                         var hframe = document.getElementById("headlines-frame");
  38                         if (hframe) {
  39                                 hframe.src = "backend.php?op=error&msg=No%20feed%20selected.";
  40                         }
  41                 }
  42                 closeInfoBox();
  43         }
  44 }
  45
  46 function hide_unread_callback() {
  47         if (xmlhttp.readyState == 4) {
  48
  49                 try {
  50
  51                         var reply = xmlhttp.responseXML.firstChild.firstChild;
  52                         var value = reply.getAttribute("value");
  53                         var hide_read_feeds = (value != "false")
  54                         var feeds_doc = window.frames["feeds-frame"].document;
  55
  56                         hideOrShowFeeds(feeds_doc, hide_read_feeds);
  57
  58                         if (hide_read_feeds) {
  59                                 setCookie("ttrss_vf_hreadf", 1);
  60                         } else {
  61                                 setCookie("ttrss_vf_hreadf", 0);
  62                         }
  63
  64                 } catch (e) {
  65                         exception_error("hide_unread_callback", e);
  66                 }
  67
  68         }
  69 }
  70
  71 function refetch_callback() {
  72         if (xmlhttp.readyState == 4) {
  73                 try {
  74
  75                         var date = new Date();
  76
  77                         last_refetch = date.getTime() / 1000;
  78
  79                         if (!xmlhttp.responseXML) {
  80                                 notify("refetch_callback: backend did not return valid XML", true, true);
  81                                 return;
  82                         }
  83
  84                         var reply = xmlhttp.responseXML.firstChild;
  85
  86                         if (!reply) {
  87                                 notify("refetch_callback: backend did not return expected XML object", true, true);
  88                                 updateTitle("");
  89                                 return;
  90                         }
  91
  92                         var error_code = reply.getAttribute("error-code");
  93
  94                         if (error_code && error_code != 0) {
  95                                 return fatalError(error_code, reply.getAttribute("error-msg"));
  96                         }
  97
  98                         parse_counters(reply, 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.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                         var params = reply.nextSibling;
 142
 143                         if (params) {
 144                                 debug('reading init-params...');
 145                                 var param = params.firstChild;
 146
 147                                 while (param) {
 148                                         var k = param.getAttribute("key");
 149                                         var v = param.getAttribute("value");
 150                                         debug(k + " => " + v);
 151                                         init_params[k] = v;
 152                                         param = param.nextSibling;
 153                                 }
 154                         }
 155
 156                         init_second_stage();
 157
 158                 } catch (e) {
 159                         exception_error("backend_sanity_check_callback", e);
 160                 }
 161         }
 162 }
 163
 164 function scheduleFeedUpdate(force) {
 165
 166         if (!daemon_enabled) {
 167                 notify("Updating feeds, please wait.", true);
 168                 updateTitle("Updating");
 169         }
 170
 171         var query_str = "backend.php?op=rpc&subop=";
 172
 173         if (force) {
 174                 query_str = query_str + "forceUpdateAllFeeds";
 175         } else {
 176                 query_str = query_str + "updateAllFeeds";
 177         }
 178
 179         var omode;
 180
 181         if (firsttime_update && !navigator.userAgent.match("Opera")) {
 182                 firsttime_update = false;
 183                 omode = "T";
 184         } else {
 185                 if (display_tags) {
 186                         omode = "t";
 187                 } else {
 188                         omode = "flc";
 189                 }
 190         }
 191
 192         query_str = query_str + "&omode=" + omode;
 193         query_str = query_str + "&uctr=" + global_unread;
 194
 195         debug("in scheduleFeedUpdate");
 196
 197         var date = new Date();
 198
 199         if (!xmlhttp_ready(xmlhttp) && last_refetch < date.getTime() / 1000 - 60) {
 200                 debug("xmlhttp seems to be stuck, aborting");
 201                 xmlhttp.abort();
 202         }
 203
 204         if (xmlhttp_ready(xmlhttp)) {
 205                 xmlhttp.open("GET", query_str, true);
 206                 xmlhttp.onreadystatechange=refetch_callback;
 207                 xmlhttp.send(null);
 208         } else {
 209                 debug("xmlhttp busy");
 210                 printLockingError();
 211         }
 212 }
 213
 214 function updateFeedList(silent, fetch) {
 215
 216 //      if (silent != true) {
 217 //              notify("Loading feed list...");
 218 //      }
 219
 220         var query_str = "backend.php?op=feeds";
 221
 222         if (display_tags) {
 223                 query_str = query_str + "&tags=1";
 224         }
 225
 226         if (getActiveFeedId()) {
 227                 query_str = query_str + "&actid=" + getActiveFeedId();
 228         }
 229
 230         if (navigator.userAgent.match("Opera")) {
 231                 var date = new Date();
 232                 var timestamp = Math.round(date.getTime() / 1000);
 233                 query_str = query_str + "&ts=" + timestamp
 234         }
 235
 236         if (fetch) query_str = query_str + "&fetch=yes";
 237
 238         var feeds_frame = document.getElementById("feeds-frame");
 239
 240         feeds_frame.src = query_str;
 241 }
 242
 243 function catchupAllFeeds() {
 244
 245         var query_str = "backend.php?op=feeds&subop=catchupAll";
 246
 247         notify("Marking all feeds as read...");
 248
 249         var feeds_frame = document.getElementById("feeds-frame");
 250
 251         feeds_frame.src = query_str;
 252
 253         global_unread = 0;
 254         updateTitle("");
 255
 256 }
 257
 258 function viewCurrentFeed(skip, subop) {
 259
 260         if (getActiveFeedId()) {
 261                 viewfeed(getActiveFeedId(), skip, subop);
 262         } else {
 263                 disableContainerChildren("headlinesToolbar", false, document);
 264                 viewfeed(-1, skip, subop); // FIXME
 265         }
 266         return false; // block unneeded form submits
 267 }
 268
 269 function viewfeed(feed, skip, subop) {
 270         var f = window.frames["feeds-frame"];
 271         f.viewfeed(feed, skip, subop);
 272 }
 273
 274 function timeout() {
 275         scheduleFeedUpdate(false);
 276
 277         var refresh_time = getInitParam("feeds_frame_refresh");
 278
 279         if (!refresh_time) refresh_time = 600;
 280
 281         setTimeout("timeout()", refresh_time*1000);
 282 }
 283
 284 function resetSearch() {
 285         var searchbox = document.getElementById("searchbox")
 286
 287         if (searchbox.value != "" && getActiveFeedId()) {
 288                 searchbox.value = "";
 289                 viewfeed(getActiveFeedId(), 0, "");
 290         }
 291 }
 292
 293 function searchCancel() {
 294         closeInfoBox(true);
 295 }
 296
 297 function search() {
 298         closeInfoBox();
 299         viewCurrentFeed(0, "");
 300 }
 301
 302 function localPiggieFunction(enable) {
 303         if (enable) {
 304                 var query_str = "backend.php?op=feeds&subop=piggie";
 305
 306                 if (xmlhttp_ready(xmlhttp)) {
 307
 308                         xmlhttp.open("GET", query_str, true);
 309                         xmlhttp.onreadystatechange=feedlist_callback;
 310                         xmlhttp.send(null);
 311                 }
 312         }
 313 }
 314
 315 function localHotkeyHandler(keycode) {
 316
 317         if (keycode == 82) { // r
 318                 return scheduleFeedUpdate(true);
 319         }
 320
 321         if (keycode == 85) { // u
 322                 if (getActiveFeedId()) {
 323                         return viewfeed(getActiveFeedId(), 0, "ForceUpdate");
 324                 }
 325         }
 326
 327         if (keycode == 65) { // a
 328                 return toggleDispRead();
 329         }
 330
 331         var f_doc = window.frames["feeds-frame"].document;
 332         var feedlist = f_doc.getElementById('feedList');
 333
 334         if (keycode == 74) { // j
 335                 var feed = getActiveFeedId();
 336                 var new_feed = getRelativeFeedId(feedlist, feed, 'prev');
 337                 if (new_feed) viewfeed(new_feed, 0, '');
 338         }
 339
 340         if (keycode == 75) { // k
 341                 var feed = getActiveFeedId();
 342                 var new_feed = getRelativeFeedId(feedlist, feed, 'next');
 343                 if (new_feed) viewfeed(new_feed, 0, '');
 344         }
 345
 346 //      notify("KC: " + keycode);
 347
 348 }
 349
 350 // if argument is undefined, current subtitle is not updated
 351 // use blank string to clear subtitle
 352 function updateTitle(s) {
 353         var tmp = "Tiny Tiny RSS";
 354
 355         if (s != undefined) {
 356                 current_subtitle = s;
 357         }
 358
 359         if (global_unread > 0) {
 360                 tmp = tmp + " (" + global_unread + ")";
 361         }
 362
 363         if (current_subtitle) {
 364                 tmp = tmp + " - " + current_subtitle;
 365         }
 366
 367         if (active_title_text.length > 0) {
 368                 tmp = tmp + " > " + active_title_text;
 369         }
 370
 371         document.title = tmp;
 372 }
 373
 374 function genericSanityCheck() {
 375
 376         if (!xmlhttp) fatalError(1);
 377
 378         setCookie("ttrss_vf_test", "TEST");
 379
 380         if (getCookie("ttrss_vf_test") != "TEST") {
 381                 fatalError(2);
 382         }
 383
 384         return true;
 385 }
 386
 387 function init() {
 388
 389         try {
 390
 391                 // this whole shebang is based on http://www.birnamdesigns.com/misc/busted2.html
 392
 393                 if (arguments.callee.done) return;
 394                 arguments.callee.done = true;
 395
 396                 disableContainerChildren("headlinesToolbar", true);
 397
 398                 Form.disable("main_toolbar_form");
 399
 400                 if (!genericSanityCheck())
 401                         return;
 402
 403                 if (getURLParam('debug')) {
 404                         document.getElementById('debug_output').style.display = 'block';
 405                         debug('debug mode activated');
 406                 }
 407
 408                 xmlhttp.open("GET", "backend.php?op=rpc&subop=sanityCheck", true);
 409                 xmlhttp.onreadystatechange=backend_sanity_check_callback;
 410                 xmlhttp.send(null);
 411
 412         } catch (e) {
 413                 exception_error("init", e);
 414         }
 415 }
 416
 417 function resize_feeds_frame() {
 418         var f = document.getElementById("feeds-frame");
 419         var tf = document.getElementById("mainFooter");
 420         var th = document.getElementById("mainHeader");
 421
 422         f.style.height = document.body.scrollHeight - tf.scrollHeight -
 423                 th.scrollHeight - 50 + "px";
 424 }
 425
 426 function init_second_stage() {
 427
 428         try {
 429
 430                 cookie_lifetime = getCookie("ttrss_cltime");
 431
 432                 delCookie("ttrss_vf_test");
 433
 434                 setCookie("ttrss_vf_actfeed", "");
 435
 436                 updateFeedList(false, false);
 437                 document.onkeydown = hotkey_handler;
 438
 439                 var tb = parent.document.forms["main_toolbar_form"];
 440
 441                 dropboxSelect(tb.view_mode, getInitParam("toolbar_view_mode"));
 442                 dropboxSelect(tb.limit, getInitParam("toolbar_limit"));
 443
 444                 daemon_enabled = getInitParam("daemon_enabled");
 445
 446                 // FIXME should be callled after window resize
 447
 448                 var h = document.getElementById("headlines");
 449                 var c = document.getElementById("content");
 450
 451                 if (navigator.userAgent.match("Opera")) {
 452                         resize_feeds_frame();
 453
 454 /*                      // fix headlines frame height for Opera
 455                         var h = document.getElementById("headlines");
 456                         var c = document.getElementById("content");
 457                         var nh = document.body.scrollHeight * 0.25;
 458
 459                         h.style.height = nh + "px";
 460                         c.style.height = c.scrollHeight - nh + "px"; */
 461
 462                 }
 463
 464                 debug("second stage ok");
 465
 466         } catch (e) {
 467                 exception_error("init_second_stage", e);
 468         }
 469 }
 470
 471 function quickMenuChange() {
 472         var chooser = document.getElementById("quickMenuChooser");
 473         var opid = chooser[chooser.selectedIndex].value;
 474
 475         chooser.selectedIndex = 0;
 476         quickMenuGo(opid);
 477 }
 478
 479 function quickMenuGo(opid) {
 480         try {
 481
 482                 if (opid == "qmcPrefs") {
 483                         gotoPreferences();
 484                 }
 485
 486                 if (opid == "qmcSearch") {
 487                         displayDlg("search", getActiveFeedId());
 488                         return;
 489                 }
 490
 491                 if (opid == "qmcAddFeed") {
 492                         displayDlg("quickAddFeed");
 493                         return;
 494                 }
 495
 496                 if (opid == "qmcRemoveFeed") {
 497                         var actid = getActiveFeedId();
 498
 499                         if (!actid) {
 500                                 alert("Please select some feed first.");
 501                                 return;
 502                         }
 503
 504                         if (confirm("Unsubscribe from current feed?")) {
 505                                 qfdDelete(actid);
 506                         }
 507
 508                         return;
 509                 }
 510
 511                 if (opid == "qmcUpdateFeeds") {
 512                         scheduleFeedUpdate(true);
 513                         return;
 514                 }
 515
 516                 if (opid == "qmcCatchupAll") {
 517                         catchupAllFeeds();
 518                         return;
 519                 }
 520
 521                 if (opid == "qmcShowOnlyUnread") {
 522                         toggleDispRead();
 523                         return;
 524                 }
 525
 526                 if (opid == "qmcAddFilter") {
 527                         displayDlg("quickAddFilter", getActiveFeedId());
 528                 }
 529         } catch (e) {
 530                 exception_error("quickMenuGo", e);
 531         }
 532 }
 533
 534 function qfdDelete(feed_id) {
 535
 536         notify("Removing feed...");
 537
 538         if (!xmlhttp_ready(xmlhttp)) {
 539                 printLockingError();
 540                 return
 541         }
 542
 543 //      var feeds_doc = window.frames["feeds-frame"].document;
 544 //      feeds_doc.location.href = "backend.php?op=error&msg=Loading,%20please wait...";
 545
 546         _qfd_deleted_feed = feed_id;
 547
 548         xmlhttp.open("GET", "backend.php?op=pref-feeds&quiet=1&subop=remove&ids=" + feed_id);
 549         xmlhttp.onreadystatechange=dlg_frefresh_callback;
 550         xmlhttp.send(null);
 551 }
 552
 553
 554 function updateFeedTitle(t) {
 555         active_title_text = t;
 556         updateTitle();
 557 }
 558
 559 function toggleDispRead() {
 560         try {
 561
 562                 if (!xmlhttp_ready(xmlhttp)) {
 563                         printLockingError();
 564                         return
 565                 }
 566
 567                 var hide_read_feeds = (getCookie("ttrss_vf_hreadf") == 1);
 568
 569                 hide_read_feeds = !hide_read_feeds;
 570
 571                 var query = "backend.php?op=rpc&subop=setpref" +
 572                         "&key=HIDE_READ_FEEDS&value=" + param_escape(hide_read_feeds);
 573
 574                 xmlhttp.open("GET", query);
 575                 xmlhttp.onreadystatechange=hide_unread_callback;
 576                 xmlhttp.send(null);
 577
 578         } catch (e) {
 579                 exception_error("toggleDispRead", e);
 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 }
 596
 597 function getInitParam(key) {
 598         return init_params[key];
 599 }
 600
 601 function storeInitParam(key, value) {
 602         try {
 603                 init_params[key] = value;
 604                 new Ajax.Request("backend.php?op=rpc&subop=storeParam&key=" +
 605                         param_escape(key) + "&value=" + param_escape(value));
 606         } catch (e) {
 607                 exception_error("storeInitParam", e);
 608         }
 609 }