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         }
 230
 231         if (rows.length > 0) {
 232
 233                 var feedr = document.getElementById("FEEDR-" + feed);
 234                 var feedu = document.getElementById("FEEDU-" + feed);
 235
 236                 feedu.innerHTML = feedu.innerHTML - rows.length;
 237
 238                 if (feedu.innerHTML > 0 && !feedr.className.match("Unread")) {
 239                                 feedr.className = feedr.className + "Unread";
 240                 } else if (feedu.innerHTML <= 0) {
 241                                 feedr.className = feedr.className.replace("Unread", "");
 242                 }
 243
 244                 var query_str = "backend.php?op=rpc&subop=catchupPage&ids=" +
 245                         param_escape(rows.toString());
 246
 247                 notify("Marking this page as read...");
 248
 249                 var button = document.getElementById("btnCatchupPage");
 250
 251                 if (button) {
 252                         button.className = "disabledButton";
 253                         button.href = "";
 254                 }
 255
 256                 xmlhttp.open("GET", query_str, true);
 257                 xmlhttp.onreadystatechange=notify_callback;
 258                 xmlhttp.send(null);
 259
 260         } else {
 261                 notify("No unread items on this page.");
 262
 263         }
 264 }
 265
 266 function catchupAllFeeds() {
 267
 268         if (!xmlhttp_ready(xmlhttp)) {
 269                 printLockingError();
 270                 return
 271         }
 272         var query_str = "backend.php?op=feeds&subop=catchupAll";
 273
 274         notify("Marking all feeds as read...");
 275
 276         xmlhttp.open("GET", query_str, true);
 277         xmlhttp.onreadystatechange=feedlist_callback;
 278         xmlhttp.send(null);
 279
 280 }
 281
 282 function viewfeed(feed, skip, subop) {
 283
 284         enableHotkeys();
 285
 286         var searchbox = document.getElementById("searchbox");
 287
 288         if (searchbox) {
 289                 search_query = searchbox.value;
 290         } else {
 291                 search_query = "";
 292         }
 293
 294 /*      if (active_feed_id == feed && subop != "ForceUpdate") {
 295                 notify("This feed is currently selected.");
 296                 return;
 297         } */
 298
 299         if (skip < 0 || skip > total_feed_entries) {
 300                 return;
 301         }
 302
 303         if (!xmlhttp_ready(xmlhttp)) {
 304                 printLockingError();
 305                 return
 306         }
 307
 308         if (active_feed_id != feed || skip != active_offset) {
 309                 active_post_id = false;
 310         }
 311
 312         active_feed_id = feed;
 313         active_offset = skip;
 314
 315         var query = "backend.php?op=viewfeed&feed=" + param_escape(feed) +
 316                 "&skip=" + param_escape(skip) + "&subop=" + param_escape(subop);
 317
 318         if (search_query != "") {
 319                 query = query + "&search=" + param_escape(search_query);
 320         }
 321
 322         xmlhttp.open("GET", query, true);
 323         xmlhttp.onreadystatechange=viewfeed_callback;
 324         xmlhttp.send(null);
 325
 326         notify("Loading headlines...");
 327
 328 }
 329
 330 function markHeadline(id) {
 331         var row = document.getElementById("RROW-" + id);
 332         if (row) {
 333                 row.className = row.className + "Selected";
 334         }
 335 }
 336
 337 function getFeedIds() {
 338         var content = document.getElementById("feedsList");
 339
 340         var rows = new Array();
 341
 342         for (i = 0; i < content.rows.length; i++) {
 343                 var id = content.rows[i].id.replace("FEEDR-", "");
 344                 if (id.length > 0) {
 345                         rows.push(id);
 346                 }
 347         }
 348
 349         return rows;
 350 }
 351
 352 function cleanSelected(element) {
 353         var content = document.getElementById(element);
 354
 355         var rows = new Array();
 356
 357         for (i = 0; i < content.rows.length; i++) {
 358                 content.rows[i].className = content.rows[i].className.replace("Selected", "");
 359         }
 360
 361 }
 362
 363 function view(id,feed_id) {
 364
 365         enableHotkeys();
 366
 367         if (!xmlhttp_ready(xmlhttp_view)) {
 368                 printLockingError();
 369                 return
 370         }
 371
 372         var crow = document.getElementById("RROW-" + id);
 373
 374         if (crow.className.match("Unread")) {
 375                 var umark = document.getElementById("FEEDU-" + feed_id);
 376                 umark.innerHTML = umark.innerHTML - 1;
 377                 crow.className = crow.className.replace("Unread", "");
 378
 379                 if (umark.innerHTML == "0") {
 380                         var feedr = document.getElementById("FEEDR-" + feed_id);
 381                         feedr.className = feedr.className.replace("Unread", "");
 382                 }
 383
 384                 total_unread--;
 385         }
 386
 387         cleanSelected("headlinesList");
 388 //      crow.className = crow.className + "Selected";
 389
 390         var upd_img_pic = document.getElementById("FUPDPIC-" + id);
 391
 392         if (upd_img_pic) {
 393                 upd_img_pic.innerHTML = "";
 394         }
 395
 396 //      document.getElementById('content').innerHTML='Loading, please wait...';
 397
 398         var unread_rows = getVisibleUnreadHeadlines();
 399
 400         if (unread_rows.length == 0) {
 401                 var button = document.getElementById("btnCatchupPage");
 402                 if (button) {
 403                         button.className = "disabledButton";
 404                         button.href = "";
 405                 }
 406         }
 407
 408         active_post_id = id;
 409
 410         xmlhttp_view.open("GET", "backend.php?op=view&id=" + param_escape(id), true);
 411         xmlhttp_view.onreadystatechange=view_callback;
 412         xmlhttp_view.send(null);
 413
 414
 415 }
 416
 417 function timeout() {
 418         scheduleFeedUpdate(true);
 419         setTimeout("timeout()", 1800*1000);
 420 }
 421
 422 function resetSearch() {
 423         document.getElementById("searchbox").value = "";
 424         viewfeed(active_feed_id, 0, "");
 425 }
 426
 427 function search(feed) {
 428         viewfeed(feed, 0, "");
 429 }
 430
 431 function localPiggieFunction(enable) {
 432         if (enable) {
 433                 var query_str = "backend.php?op=feeds&subop=piggie";
 434
 435                 if (xmlhttp_ready(xmlhttp)) {
 436
 437                         xmlhttp.open("GET", query_str, true);
 438                         xmlhttp.onreadystatechange=feedlist_callback;
 439                         xmlhttp.send(null);
 440                 }
 441         }
 442 }
 443
 444 function relativeid_callback() {
 445
 446         if (xmlhttp_rpc.readyState == 4) {
 447                 notify(xmlhttp_rpc.responseText);
 448         }
 449
 450 }
 451
 452 function getVisibleUnreadHeadlines() {
 453         var content = document.getElementById("headlinesList");
 454
 455         var rows = new Array();
 456
 457         for (i = 0; i < content.rows.length; i++) {
 458                 var row_id = content.rows[i].id.replace("RROW-", "");
 459                 if (row_id.length > 0 && content.rows[i].className.match("Unread")) {
 460                                 rows.push(row_id);
 461                 }
 462         }
 463         return rows;
 464 }
 465
 466 function getVisibleHeadlineIds() {
 467
 468         var content = document.getElementById("headlinesList");
 469
 470         var rows = new Array();
 471
 472         for (i = 0; i < content.rows.length; i++) {
 473                 var row_id = content.rows[i].id.replace("RROW-", "");
 474                 if (row_id.length > 0) {
 475                                 rows.push(row_id);
 476                 }
 477         }
 478         return rows;
 479 }
 480
 481 function getFirstVisibleHeadlineId() {
 482         var rows = getVisibleHeadlineIds();
 483         return rows[0];
 484 }
 485
 486 function getLastVisibleHeadlineId() {
 487         var rows = getVisibleHeadlineIds();
 488         return rows[rows.length-1];
 489 }
 490
 491 function moveToPost(mode) {
 492
 493         var rows = getVisibleHeadlineIds();
 494
 495         var prev_id;
 496         var next_id;
 497
 498         if (active_post_id == false) {
 499                 next_id = getFirstVisibleHeadlineId();
 500                 prev_id = getLastVisibleHeadlineId();
 501         } else {
 502                 for (var i = 0; i < rows.length; i++) {
 503                         if (rows[i] == active_post_id) {
 504                                 prev_id = rows[i-1];
 505                                 next_id = rows[i+1];
 506                         }
 507                 }
 508         }
 509
 510         if (mode == "next") {
 511                 if (next_id != undefined) {
 512                         view(next_id, active_feed_id);
 513                 } else {
 514                         _viewfeed_autoselect_first = true;
 515                         viewfeed(active_feed_id, active_offset+15);
 516                 }
 517         }
 518
 519         if (mode == "prev") {
 520                 if ( prev_id != undefined) {
 521                         view(prev_id, active_feed_id);
 522                 } else {
 523                         _viewfeed_autoselect_last = true;
 524                         viewfeed(active_feed_id, active_offset-15);
 525                 }
 526         }
 527
 528 }
 529
 530 function localHotkeyHandler(keycode) {
 531
 532         if (keycode == 78) {
 533                 return moveToPost('next');
 534         }
 535
 536         if (keycode == 80) {
 537                 return moveToPost('prev');
 538         }
 539
 540         if (keycode == 82) {
 541                 return scheduleFeedUpdate(true);
 542         }
 543
 544         if (keycode == 85) {
 545                 return viewfeed(active_feed_id, active_offset, "ForceUpdate");
 546         }
 547
 548 //      notify("KC: " + keycode);
 549
 550 }
 551
 552
 553 function init() {
 554
 555         // IE kludge
 556
 557         if (xmlhttp && !xmlhttp_rpc) {
 558                 xmlhttp_rpc = xmlhttp;
 559                 xmlhttp_view = xmlhttp;
 560         }
 561
 562         if (!xmlhttp || !xmlhttp_rpc || !xmlhttp_view) {
 563                 document.getElementById("headlines").innerHTML =
 564                         "<b>Fatal error:</b> This program needs XmlHttpRequest " +
 565                         "to function properly. Your browser doesn't seem to support it.";
 566                 return;
 567         }
 568
 569         updateFeedList(false, false);
 570         document.onkeydown = hotkey_handler;
 571         setTimeout("timeout()", 1800*1000);
 572 }