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 search_query = "";
  20
  21 /*@cc_on @*/
  22 /*@if (@_jscript_version >= 5)
  23 // JScript gives us Conditional compilation, we can cope with old IE versions.
  24 // and security blocked creation of the objects.
  25 try {
  26         xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
  27 } catch (e) {
  28         try {
  29                 xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
  30                 xmlhttp_rpc = new ActiveXObject("Microsoft.XMLHTTP");
  31                 xmlhttp_view = new ActiveXObject("Microsoft.XMLHTTP");
  32         } catch (E) {
  33                 xmlhttp = false;
  34                 xmlhttp_rpc = false;
  35                 xmlhttp_view = false;
  36         }
  37 }
  38 @end @*/
  39
  40 if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
  41         xmlhttp = new XMLHttpRequest();
  42         xmlhttp_rpc = new XMLHttpRequest();
  43         xmlhttp_view = new XMLHttpRequest();
  44 }
  45
  46 function feedlist_callback() {
  47         var container = document.getElementById('feeds');
  48         if (xmlhttp.readyState == 4) {
  49                 container.innerHTML=xmlhttp.responseText;
  50
  51                 if (first_run) {
  52                         scheduleFeedUpdate(false);
  53                         first_run = false;
  54                 } else {
  55                         notify("");
  56                 }
  57         }
  58 }
  59
  60 function refetch_callback() {
  61
  62         if (xmlhttp_rpc.readyState == 4) {
  63                 notify("All feeds updated");
  64                 var container = document.getElementById('feeds');
  65                 container.innerHTML = xmlhttp_rpc.responseText;
  66                 document.title = "Tiny Tiny RSS";
  67         }
  68 }
  69
  70 function updateFeed(feed_id) {
  71
  72         var query_str = "backend.php?op=rpc&subop=updateFeed&feed=" + feed_id;
  73
  74         if (xmlhttp_ready(xmlhttp_rpc)) {
  75                 xmlhttp_rpc.open("GET", query_str, true);
  76                 xmlhttp_rpc.onreadystatechange=feed_update_callback;
  77                 xmlhttp_rpc.send(null);
  78         } else {
  79                 printLockingError();
  80         }
  81
  82 }
  83
  84 function scheduleFeedUpdate(force) {
  85
  86         notify("Updating feeds in background...");
  87
  88         document.title = "Tiny Tiny RSS - Updating...";
  89
  90         var query_str = "backend.php?op=rpc&subop=";
  91
  92         if (force) {
  93                 query_str = query_str + "forceUpdateAllFeeds";
  94         } else {
  95                 query_str = query_str + "updateAllFeeds";
  96         }
  97
  98         if (xmlhttp_ready(xmlhttp_rpc)) {
  99                 xmlhttp_rpc.open("GET", query_str, true);
 100                 xmlhttp_rpc.onreadystatechange=refetch_callback;
 101                 xmlhttp_rpc.send(null);
 102         } else {
 103                 printLockingError();
 104         }
 105 }
 106
 107 function updateFeedList(silent, fetch) {
 108
 109         if (silent != true) {
 110                 notify("Loading feed list...");
 111         }
 112
 113         var query_str = "backend.php?op=feeds";
 114
 115         if (fetch) query_str = query_str + "&fetch=yes";
 116
 117         if (xmlhttp_ready(xmlhttp)) {
 118                 xmlhttp.open("GET", query_str, true);
 119                 xmlhttp.onreadystatechange=feedlist_callback;
 120                 xmlhttp.send(null);
 121         } else {
 122                 printLockingError();
 123         }
 124 }
 125
 126 /*
 127 function catchupPage(feed) {
 128
 129         if (!xmlhttp_ready(xmlhttp)) {
 130                 printLockingError();
 131                 return
 132         }
 133
 134         var content = document.getElementById("headlinesList");
 135
 136         var rows = new Array();
 137
 138         for (i = 0; i < content.rows.length; i++) {
 139                 var row_id = content.rows[i].id.replace("RROW-", "");
 140                 if (row_id.length > 0) {
 141                         if (content.rows[i].className.match("Unread")) {
 142                                 rows.push(row_id);
 143                                 content.rows[i].className = content.rows[i].className.replace("Unread", "");
 144                         }
 145
 146                         var upd_img_pic = document.getElementById("FUPDPIC-" + row_id);
 147                         if (upd_img_pic) {
 148                                 upd_img_pic.innerHTML = "";
 149                         }
 150                 }
 151         }
 152
 153         if (rows.length > 0) {
 154
 155                 var feedr = document.getElementById("FEEDR-" + feed);
 156                 var feedu = document.getElementById("FEEDU-" + feed);
 157
 158                 feedu.innerHTML = feedu.innerHTML - rows.length;
 159
 160                 if (feedu.innerHTML > 0 && !feedr.className.match("Unread")) {
 161                                 feedr.className = feedr.className + "Unread";
 162                 } else if (feedu.innerHTML <= 0) {
 163                                 feedr.className = feedr.className.replace("Unread", "");
 164                 }
 165
 166                 var query_str = "backend.php?op=rpc&subop=catchupPage&ids=" +
 167                         param_escape(rows.toString());
 168
 169                 notify("Marking this page as read...");
 170
 171                 var button = document.getElementById("btnCatchupPage");
 172
 173                 if (button) {
 174                         button.className = "disabledButton";
 175                         button.href = "";
 176                 }
 177
 178                 xmlhttp.open("GET", query_str, true);
 179                 xmlhttp.onreadystatechange=notify_callback;
 180                 xmlhttp.send(null);
 181
 182         } else {
 183                 notify("No unread items on this page.");
 184
 185         }
 186 } */
 187
 188 function catchupAllFeeds() {
 189
 190         if (!xmlhttp_ready(xmlhttp)) {
 191                 printLockingError();
 192                 return
 193         }
 194         var query_str = "backend.php?op=feeds&subop=catchupAll";
 195
 196         notify("Marking all feeds as read...");
 197
 198         xmlhttp.open("GET", query_str, true);
 199         xmlhttp.onreadystatechange=feedlist_callback;
 200         xmlhttp.send(null);
 201
 202 }
 203
 204 function viewCurrentFeed(skip, subop) {
 205         if (active_feed_id) {
 206                 viewfeed(active_feed_id, skip, subop);
 207         }
 208 }
 209
 210 function viewfeed(feed, skip, subop) {
 211
 212         enableHotkeys();
 213
 214         var searchbox = document.getElementById("searchbox");
 215
 216         if (searchbox) {
 217                 search_query = searchbox.value;
 218         } else {
 219                 search_query = "";
 220         }
 221
 222         var viewbox = document.getElementById("viewbox");
 223
 224         var view_mode;
 225
 226         if (viewbox) {
 227                 view_mode = viewbox.value;
 228         } else {
 229                 view_mode = "All Posts";
 230         }
 231
 232         var limitbox = document.getElementById("limitbox");
 233
 234         var limit;
 235
 236         if (limitbox) {
 237                 limit = limitbox.value;
 238         } else {
 239                 limit = "All";
 240         }
 241
 242         if (skip < 0 || skip > total_feed_entries) {
 243                 return;
 244         }
 245
 246         if (!xmlhttp_ready(xmlhttp)) {
 247                 printLockingError();
 248                 return
 249         }
 250
 251         if (active_feed_id != feed || skip != active_offset) {
 252                 active_post_id = false;
 253         }
 254
 255         active_feed_id = feed;
 256         active_offset = skip;
 257
 258         if (subop == "MarkAllRead") {
 259
 260                 var feedr = document.getElementById("FEEDR-" + feed);
 261                 var feedt = document.getElementById("FEEDT-" + feed);
 262                 var feedu = document.getElementById("FEEDU-" + feed);
 263
 264                 feedu.innerHTML = "0";
 265
 266                 if (feedr.className.match("Unread")) {
 267                         feedr.className = feedr.className.replace("Unread", "");
 268                 }
 269         }
 270
 271         var query = "backend.php?op=viewfeed&feed=" + param_escape(feed) +
 272                 "&skip=" + param_escape(skip) + "&subop=" + param_escape(subop) +
 273                 "&view=" + param_escape(view_mode) + "&limit=" + limit;
 274
 275         if (search_query != "") {
 276                 query = query + "&search=" + param_escape(search_query);
 277         }
 278
 279         var headlines_frame = document.getElementById("headlines-frame");
 280
 281         headlines_frame.src = query + "&addheader=true";
 282
 283         var feedr = document.getElementById("FEEDR-" + feed);
 284
 285         cleanSelected("feedsList");
 286         feedr.className = feedr.className + "Selected";
 287
 288         var ftitle_d = document.getElementById("headlinesTitle");
 289         var ftitle_s = document.getElementById("FEEDN-" + feed);
 290
 291         ftitle_d.innerHTML = ftitle_s.innerHTML;
 292
 293         notify("");
 294
 295 }
 296
 297 function timeout() {
 298         scheduleFeedUpdate(true);
 299         setTimeout("timeout()", 1800*1000);
 300 }
 301
 302 function resetSearch() {
 303         document.getElementById("searchbox").value = "";
 304         viewfeed(active_feed_id, 0, "");
 305 }
 306
 307 function search() {
 308         if (active_feed_id) {
 309                 viewfeed(active_feed_id, 0, "");
 310         } else {
 311                 notify("Please select some feed first.");
 312         }
 313 }
 314
 315 function localPiggieFunction(enable) {
 316         if (enable) {
 317                 var query_str = "backend.php?op=feeds&subop=piggie";
 318
 319                 if (xmlhttp_ready(xmlhttp)) {
 320
 321                         xmlhttp.open("GET", query_str, true);
 322                         xmlhttp.onreadystatechange=feedlist_callback;
 323                         xmlhttp.send(null);
 324                 }
 325         }
 326 }
 327
 328 /*
 329 function moveToPost(mode) {
 330
 331         var rows = getVisibleHeadlineIds();
 332
 333         var prev_id;
 334         var next_id;
 335
 336         if (active_post_id == false) {
 337                 next_id = getFirstVisibleHeadlineId();
 338                 prev_id = getLastVisibleHeadlineId();
 339         } else {
 340                 for (var i = 0; i < rows.length; i++) {
 341                         if (rows[i] == active_post_id) {
 342                                 prev_id = rows[i-1];
 343                                 next_id = rows[i+1];
 344                         }
 345                 }
 346         }
 347
 348         if (mode == "next") {
 349                 if (next_id != undefined) {
 350                         view(next_id, active_feed_id);
 351                 } else {
 352                         _viewfeed_autoselect_first = true;
 353                         viewfeed(active_feed_id, active_offset+15);
 354                 }
 355         }
 356
 357         if (mode == "prev") {
 358                 if ( prev_id != undefined) {
 359                         view(prev_id, active_feed_id);
 360                 } else {
 361                         _viewfeed_autoselect_last = true;
 362                         viewfeed(active_feed_id, active_offset-15);
 363                 }
 364         }
 365
 366 }
 367 */
 368
 369 function localHotkeyHandler(keycode) {
 370
 371 /*      if (keycode == 78) {
 372                 return moveToPost('next');
 373         }
 374
 375         if (keycode == 80) {
 376                 return moveToPost('prev');
 377         } */
 378
 379         if (keycode == 82) {
 380                 return scheduleFeedUpdate(true);
 381         }
 382
 383         if (keycode == 85) {
 384                 return viewfeed(active_feed_id, active_offset, "ForceUpdate");
 385         }
 386
 387 //      notify("KC: " + keycode);
 388
 389 }
 390
 391 function init() {
 392
 393         // IE kludge
 394
 395         if (xmlhttp && !xmlhttp_rpc) {
 396                 xmlhttp_rpc = xmlhttp;
 397                 xmlhttp_view = xmlhttp;
 398         }
 399
 400         if (!xmlhttp || !xmlhttp_rpc || !xmlhttp_view) {
 401                 document.getElementById("headlines").innerHTML =
 402                         "<b>Fatal error:</b> This program needs XmlHttpRequest " +
 403                         "to function properly. Your browser doesn't seem to support it.";
 404                 return;
 405         }
 406
 407         updateFeedList(false, false);
 408         document.onkeydown = hotkey_handler;
 409         setTimeout("timeout()", 1800*1000);
 410
 411         var content = document.getElementById("content");
 412 }