tt-rss.js

   1 /*
   2         This program is Copyright (c) 2003-2005 Andrew Dolgov <cthulhoo@gmail.com>
   3         Licensed under GPL v.2 or (at your preference) any later version.
   4 */
   5
   6 var xmlhttp = false;
   7 var xmlhttp_rpc = false;
   8 var xmlhttp_view = false;
   9
  10 var total_unread = 0;
  11 var first_run = true;
  12
  13 var active_post_id = false;
  14 var active_feed_id = false;
  15 var active_offset = false;
  16
  17 var total_feed_entries = false;
  18
  19 var _viewfeed_autoselect_first = false;
  20 var _viewfeed_autoselect_last = false;
  21
  22 var _update_ids;
  23 var _update_num_ids;
  24
  25 var search_query = "";
  26
  27 /*@cc_on @*/
  28 /*@if (@_jscript_version >= 5)
  29 // JScript gives us Conditional compilation, we can cope with old IE versions.
  30 // and security blocked creation of the objects.
  31 try {
  32         xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
  33 } catch (e) {
  34         try {
  35                 xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
  36                 xmlhttp_rpc = new ActiveXObject("Microsoft.XMLHTTP");
  37                 xmlhttp_view = new ActiveXObject("Microsoft.XMLHTTP");
  38         } catch (E) {
  39                 xmlhttp = false;
  40                 xmlhttp_rpc = false;
  41                 xmlhttp_view = false;
  42         }
  43 }
  44 @end @*/
  45
  46 if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
  47         xmlhttp = new XMLHttpRequest();
  48         xmlhttp_rpc = new XMLHttpRequest();
  49         xmlhttp_view = new XMLHttpRequest();
  50 }
  51
  52 function feedlist_callback() {
  53         var container = document.getElementById('feeds');
  54         if (xmlhttp.readyState == 4) {
  55                 container.innerHTML=xmlhttp.responseText;
  56
  57                 if (first_run) {
  58                         scheduleFeedUpdate(false);
  59                         first_run = false;
  60                 } else {
  61                         notify("");
  62                 }
  63         }
  64 }
  65
  66 function feed_update_callback() {
  67         if (xmlhttp_rpc.readyState == 4) {
  68                 var result = xmlhttp_rpc.responseText;
  69                 notify(_update_ids);
  70                 updateFeed(_update_ids.shift());
  71         }
  72 }
  73
  74 function viewfeed_callback() {
  75         var container = document.getElementById('headlines');
  76         if (xmlhttp.readyState == 4) {
  77                 container.innerHTML = xmlhttp.responseText;
  78
  79                 var factive = document.getElementById("FACTIVE");
  80                 var funread = document.getElementById("FUNREAD");
  81                 var ftotal = document.getElementById("FTOTAL");
  82
  83                 if (_viewfeed_autoselect_first == true) {
  84                         _viewfeed_autoselect_first = false;
  85                         view(getFirstVisibleHeadlineId(), active_feed_id);
  86                 }
  87
  88                 if (_viewfeed_autoselect_last == true) {
  89                         _viewfeed_autoselect_last = false;
  90                         view(getLastVisibleHeadlineId(), active_feed_id);
  91                 }
  92
  93                 if (ftotal && factive && funread) {
  94                         var feed_id = factive.innerHTML;
  95
  96                         var feedr = document.getElementById("FEEDR-" + feed_id);
  97                         var feedt = document.getElementById("FEEDT-" + feed_id);
  98                         var feedu = document.getElementById("FEEDU-" + feed_id);
  99
 100                         feedt.innerHTML = ftotal.innerHTML;
 101                         feedu.innerHTML = funread.innerHTML;
 102
 103                         total_feed_entries = ftotal.innerHTML;
 104
 105                         if (feedu.innerHTML > 0 && !feedr.className.match("Unread")) {
 106                                         feedr.className = feedr.className + "Unread";
 107                         } else if (feedu.innerHTML <= 0) {
 108                                         feedr.className = feedr.className.replace("Unread", "");
 109                         }
 110
 111                         cleanSelected("feedsList");
 112
 113                         feedr.className = feedr.className + "Selected";
 114                 }
 115
 116                 var searchbox = document.getElementById("searchbox");
 117                 searchbox.value = search_query;
 118
 119                 markHeadline(active_post_id);
 120
 121                 notify("");
 122
 123         }
 124 }
 125
 126 function view_callback() {
 127         var container = document.getElementById('content');
 128         if (xmlhttp_view.readyState == 4) {
 129                 container.innerHTML=xmlhttp_view.responseText;
 130                 markHeadline(active_post_id);
 131         }
 132 }
 133
 134 function refetch_callback() {
 135
 136         if (xmlhttp_rpc.readyState == 4) {
 137                 notify("All feeds updated");
 138                 var container = document.getElementById('feeds');
 139                 container.innerHTML = xmlhttp_rpc.responseText;
 140                 document.title = "Tiny Tiny RSS";
 141         }
 142 }
 143
 144 function updateFeed(feed_id) {
 145
 146         var query_str = "backend.php?op=rpc&subop=updateFeed&feed=" + feed_id;
 147
 148         if (xmlhttp_ready(xmlhttp_rpc)) {
 149                 xmlhttp_rpc.open("GET", query_str, true);
 150                 xmlhttp_rpc.onreadystatechange=feed_update_callback;
 151                 xmlhttp_rpc.send(null);
 152         } else {
 153                 printLockingError();
 154         }
 155
 156 }
 157
 158 function scheduleSepFeedUpdate(force) {
 159         notify("Updating feeds in background (M2)...");
 160
 161         _update_ids = getFeedIds();
 162         _update_num_ids = _update_ids.length;
 163
 164         updateFeed(_update_ids.pop());
 165
 166 }
 167
 168 function scheduleFeedUpdate(force) {
 169
 170         notify("Updating feeds in background...");
 171
 172         document.title = "Tiny Tiny RSS - Updating...";
 173
 174         var query_str = "backend.php?op=rpc&subop=";
 175
 176         if (force) {
 177                 query_str = query_str + "forceUpdateAllFeeds";
 178         } else {
 179                 query_str = query_str + "updateAllFeeds";
 180         }
 181
 182         if (xmlhttp_ready(xmlhttp_rpc)) {
 183                 xmlhttp_rpc.open("GET", query_str, true);
 184                 xmlhttp_rpc.onreadystatechange=refetch_callback;
 185                 xmlhttp_rpc.send(null);
 186         } else {
 187                 printLockingError();
 188         }
 189 }
 190
 191 function updateFeedList(silent, fetch) {
 192
 193         if (silent != true) {
 194                 notify("Loading feed list...");
 195         }
 196
 197         var query_str = "backend.php?op=feeds";
 198
 199         if (fetch) query_str = query_str + "&fetch=yes";
 200
 201         if (xmlhttp_ready(xmlhttp)) {
 202                 xmlhttp.open("GET", query_str, true);
 203                 xmlhttp.onreadystatechange=feedlist_callback;
 204                 xmlhttp.send(null);
 205         } else {
 206                 printLockingError();
 207         }
 208 }
 209
 210 function catchupPage(feed) {
 211
 212         if (!xmlhttp_ready(xmlhttp)) {
 213                 printLockingError();
 214                 return
 215         }
 216
 217         var content = document.getElementById("headlinesList");
 218
 219         var rows = new Array();
 220
 221         for (i = 0; i < content.rows.length; i++) {
 222                 var row_id = content.rows[i].id.replace("RROW-", "");
 223                 if (row_id.length > 0) {
 224                         if (content.rows[i].className.match("Unread")) {
 225                                 rows.push(row_id);
 226                                 content.rows[i].className = content.rows[i].className.replace("Unread", "");
 227                         }
 228
 229                         var upd_img_pic = document.getElementById("FUPDPIC-" + row_id);
 230                         if (upd_img_pic) {
 231                                 upd_img_pic.innerHTML = "";
 232                         }
 233                 }
 234         }
 235
 236         if (rows.length > 0) {
 237
 238                 var feedr = document.getElementById("FEEDR-" + feed);
 239                 var feedu = document.getElementById("FEEDU-" + feed);
 240
 241                 feedu.innerHTML = feedu.innerHTML - rows.length;
 242
 243                 if (feedu.innerHTML > 0 && !feedr.className.match("Unread")) {
 244                                 feedr.className = feedr.className + "Unread";
 245                 } else if (feedu.innerHTML <= 0) {
 246                                 feedr.className = feedr.className.replace("Unread", "");
 247                 }
 248
 249                 var query_str = "backend.php?op=rpc&subop=catchupPage&ids=" +
 250                         param_escape(rows.toString());
 251
 252                 notify("Marking this page as read...");
 253
 254                 var button = document.getElementById("btnCatchupPage");
 255
 256                 if (button) {
 257                         button.className = "disabledButton";
 258                         button.href = "";
 259                 }
 260
 261                 xmlhttp.open("GET", query_str, true);
 262                 xmlhttp.onreadystatechange=notify_callback;
 263                 xmlhttp.send(null);
 264
 265         } else {
 266                 notify("No unread items on this page.");
 267
 268         }
 269 }
 270
 271 function catchupAllFeeds() {
 272
 273         if (!xmlhttp_ready(xmlhttp)) {
 274                 printLockingError();
 275                 return
 276         }
 277         var query_str = "backend.php?op=feeds&subop=catchupAll";
 278
 279         notify("Marking all feeds as read...");
 280
 281         xmlhttp.open("GET", query_str, true);
 282         xmlhttp.onreadystatechange=feedlist_callback;
 283         xmlhttp.send(null);
 284
 285 }
 286
 287 function viewfeed(feed, skip, subop) {
 288
 289         enableHotkeys();
 290
 291         var searchbox = document.getElementById("searchbox");
 292
 293         if (searchbox) {
 294                 search_query = searchbox.value;
 295         } else {
 296                 search_query = "";
 297         }
 298
 299         var viewbox = document.getElementById("viewbox");
 300
 301         var view_mode;
 302
 303         if (viewbox) {
 304                 view_mode = viewbox.value;
 305         } else {
 306                 view_mode = "All Posts";
 307         }
 308
 309 /*      if (active_feed_id == feed && subop != "ForceUpdate") {
 310                 notify("This feed is currently selected.");
 311                 return;
 312         } */
 313
 314         if (skip < 0 || skip > total_feed_entries) {
 315                 return;
 316         }
 317
 318         if (!xmlhttp_ready(xmlhttp)) {
 319                 printLockingError();
 320                 return
 321         }
 322
 323         if (active_feed_id != feed || skip != active_offset) {
 324                 active_post_id = false;
 325         }
 326
 327         active_feed_id = feed;
 328         active_offset = skip;
 329
 330         var query = "backend.php?op=viewfeed&feed=" + param_escape(feed) +
 331                 "&skip=" + param_escape(skip) + "&subop=" + param_escape(subop) +
 332                 "&view=" + param_escape(view_mode);
 333
 334         if (search_query != "") {
 335                 query = query + "&search=" + param_escape(search_query);
 336         }
 337
 338         xmlhttp.open("GET", query, true);
 339         xmlhttp.onreadystatechange=viewfeed_callback;
 340         xmlhttp.send(null);
 341
 342         notify("Loading headlines...");
 343
 344 }
 345
 346 function markHeadline(id) {
 347         var row = document.getElementById("RROW-" + id);
 348         if (row) {
 349                 row.className = row.className + "Selected";
 350         }
 351 }
 352
 353 function getFeedIds() {
 354         var content = document.getElementById("feedsList");
 355
 356         var rows = new Array();
 357
 358         for (i = 0; i < content.rows.length; i++) {
 359                 var id = content.rows[i].id.replace("FEEDR-", "");
 360                 if (id.length > 0) {
 361                         rows.push(id);
 362                 }
 363         }
 364
 365         return rows;
 366 }
 367
 368 function cleanSelected(element) {
 369         var content = document.getElementById(element);
 370
 371         var rows = new Array();
 372
 373         for (i = 0; i < content.rows.length; i++) {
 374                 content.rows[i].className = content.rows[i].className.replace("Selected", "");
 375         }
 376
 377 }
 378
 379 function view(id,feed_id) {
 380
 381         enableHotkeys();
 382
 383         if (!xmlhttp_ready(xmlhttp_view)) {
 384                 printLockingError();
 385                 return
 386         }
 387
 388         var crow = document.getElementById("RROW-" + id);
 389
 390         if (crow.className.match("Unread")) {
 391                 var umark = document.getElementById("FEEDU-" + feed_id);
 392                 umark.innerHTML = umark.innerHTML - 1;
 393                 crow.className = crow.className.replace("Unread", "");
 394
 395                 if (umark.innerHTML == "0") {
 396                         var feedr = document.getElementById("FEEDR-" + feed_id);
 397                         feedr.className = feedr.className.replace("Unread", "");
 398                 }
 399
 400                 total_unread--;
 401         }
 402
 403         cleanSelected("headlinesList");
 404 //      crow.className = crow.className + "Selected";
 405
 406         var upd_img_pic = document.getElementById("FUPDPIC-" + id);
 407
 408         if (upd_img_pic) {
 409                 upd_img_pic.innerHTML = "";
 410         }
 411
 412 //      document.getElementById('content').innerHTML='Loading, please wait...';
 413
 414         var unread_rows = getVisibleUnreadHeadlines();
 415
 416         if (unread_rows.length == 0) {
 417                 var button = document.getElementById("btnCatchupPage");
 418                 if (button) {
 419                         button.className = "disabledButton";
 420                         button.href = "";
 421                 }
 422         }
 423
 424         active_post_id = id;
 425
 426         var content = document.getElementById("content-frame");
 427
 428         if (content) {
 429                 content.src = "backend.php?op=view&addheader=true&id=" + param_escape(id);
 430                 markHeadline(active_post_id);
 431         } else {
 432                 xmlhttp_view.open("GET", "backend.php?op=view&id=" + param_escape(id), true);
 433                 xmlhttp_view.onreadystatechange=view_callback;
 434                 xmlhttp_view.send(null);
 435         }
 436 }
 437
 438 function timeout() {
 439         scheduleFeedUpdate(true);
 440         setTimeout("timeout()", 1800*1000);
 441 }
 442
 443 function resetSearch() {
 444         document.getElementById("searchbox").value = "";
 445         viewfeed(active_feed_id, 0, "");
 446 }
 447
 448 function search(feed) {
 449         viewfeed(feed, 0, "");
 450 }
 451
 452 function localPiggieFunction(enable) {
 453         if (enable) {
 454                 var query_str = "backend.php?op=feeds&subop=piggie";
 455
 456                 if (xmlhttp_ready(xmlhttp)) {
 457
 458                         xmlhttp.open("GET", query_str, true);
 459                         xmlhttp.onreadystatechange=feedlist_callback;
 460                         xmlhttp.send(null);
 461                 }
 462         }
 463 }
 464
 465 function relativeid_callback() {
 466
 467         if (xmlhttp_rpc.readyState == 4) {
 468                 notify(xmlhttp_rpc.responseText);
 469         }
 470
 471 }
 472
 473 function getVisibleUnreadHeadlines() {
 474         var content = document.getElementById("headlinesList");
 475
 476         var rows = new Array();
 477
 478         for (i = 0; i < content.rows.length; i++) {
 479                 var row_id = content.rows[i].id.replace("RROW-", "");
 480                 if (row_id.length > 0 && content.rows[i].className.match("Unread")) {
 481                                 rows.push(row_id);
 482                 }
 483         }
 484         return rows;
 485 }
 486
 487 function getVisibleHeadlineIds() {
 488
 489         var content = document.getElementById("headlinesList");
 490
 491         var rows = new Array();
 492
 493         for (i = 0; i < content.rows.length; i++) {
 494                 var row_id = content.rows[i].id.replace("RROW-", "");
 495                 if (row_id.length > 0) {
 496                                 rows.push(row_id);
 497                 }
 498         }
 499         return rows;
 500 }
 501
 502 function getFirstVisibleHeadlineId() {
 503         var rows = getVisibleHeadlineIds();
 504         return rows[0];
 505 }
 506
 507 function getLastVisibleHeadlineId() {
 508         var rows = getVisibleHeadlineIds();
 509         return rows[rows.length-1];
 510 }
 511
 512 function moveToPost(mode) {
 513
 514         var rows = getVisibleHeadlineIds();
 515
 516         var prev_id;
 517         var next_id;
 518
 519         if (active_post_id == false) {
 520                 next_id = getFirstVisibleHeadlineId();
 521                 prev_id = getLastVisibleHeadlineId();
 522         } else {
 523                 for (var i = 0; i < rows.length; i++) {
 524                         if (rows[i] == active_post_id) {
 525                                 prev_id = rows[i-1];
 526                                 next_id = rows[i+1];
 527                         }
 528                 }
 529         }
 530
 531         if (mode == "next") {
 532                 if (next_id != undefined) {
 533                         view(next_id, active_feed_id);
 534                 } else {
 535                         _viewfeed_autoselect_first = true;
 536                         viewfeed(active_feed_id, active_offset+15);
 537                 }
 538         }
 539
 540         if (mode == "prev") {
 541                 if ( prev_id != undefined) {
 542                         view(prev_id, active_feed_id);
 543                 } else {
 544                         _viewfeed_autoselect_last = true;
 545                         viewfeed(active_feed_id, active_offset-15);
 546                 }
 547         }
 548
 549 }
 550
 551 function localHotkeyHandler(keycode) {
 552
 553         if (keycode == 78) {
 554                 return moveToPost('next');
 555         }
 556
 557         if (keycode == 80) {
 558                 return moveToPost('prev');
 559         }
 560
 561         if (keycode == 82) {
 562                 return scheduleFeedUpdate(true);
 563         }
 564
 565         if (keycode == 85) {
 566                 return viewfeed(active_feed_id, active_offset, "ForceUpdate");
 567         }
 568
 569 //      notify("KC: " + keycode);
 570
 571 }
 572
 573 function toggleMark(id, toggle) {
 574
 575 //      notify("Toggle mark: " + id + ", " + toggle);
 576
 577         if (!xmlhttp_ready(xmlhttp_rpc)) {
 578                 printLockingError();
 579                 return;
 580         }
 581
 582         var mark_img = document.getElementById("FMARKPIC-" + id);
 583
 584         var query = "backend.php?op=rpc&id=" + id + "&subop=mark";
 585
 586         if (toggle == true) {
 587                 mark_img.src = "images/mark_set.png";
 588                 mark_img.alt = "Reset mark";
 589                 mark_img.setAttribute('onclick', 'javascript:toggleMark('+id+', false)');
 590                 query = query + "&mark=1";
 591         } else {
 592                 mark_img.src = "images/mark_unset.png";
 593                 mark_img.alt = "Set mark";
 594                 mark_img.setAttribute('onclick', 'javascript:toggleMark('+id+', true)');
 595                 query = query + "&mark=0";
 596         }
 597
 598         xmlhttp_rpc.open("GET", query, true);
 599         xmlhttp_rpc.onreadystatechange=rpc_notify_callback;
 600         xmlhttp_rpc.send(null);
 601
 602 }
 603
 604 function init() {
 605
 606         // IE kludge
 607
 608         if (xmlhttp && !xmlhttp_rpc) {
 609                 xmlhttp_rpc = xmlhttp;
 610                 xmlhttp_view = xmlhttp;
 611         }
 612
 613         if (!xmlhttp || !xmlhttp_rpc || !xmlhttp_view) {
 614                 document.getElementById("headlines").innerHTML =
 615                         "<b>Fatal error:</b> This program needs XmlHttpRequest " +
 616                         "to function properly. Your browser doesn't seem to support it.";
 617                 return;
 618         }
 619
 620         updateFeedList(false, false);
 621         document.onkeydown = hotkey_handler;
 622         setTimeout("timeout()", 1800*1000);
 623
 624         var content = document.getElementById("content");
 625 }