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
   9 var total_unread = 0;
  10 var first_run = true;
  11
  12 /*@cc_on @*/
  13 /*@if (@_jscript_version >= 5)
  14 // JScript gives us Conditional compilation, we can cope with old IE versions.
  15 // and security blocked creation of the objects.
  16 try {
  17         xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
  18 } catch (e) {
  19         try {
  20                 xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
  21         } catch (E) {
  22                 xmlhttp = false;
  23         }
  24 }
  25 @end @*/
  26
  27 if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
  28         xmlhttp = new XMLHttpRequest();
  29         xmlhttp_rpc = new XMLHttpRequest();
  30
  31 }
  32
  33 function printLockingError() {
  34         notify("Please wait until operation finishes");
  35 }
  36
  37 function notify_callback() {
  38         var container = document.getElementById('notify');
  39         if (xmlhttp.readyState == 4) {
  40                 container.innerHTML=xmlhttp.responseText;
  41         }
  42 }
  43
  44 function feedlist_callback() {
  45         var container = document.getElementById('feeds');
  46         if (xmlhttp.readyState == 4) {
  47                 container.innerHTML=xmlhttp.responseText;
  48
  49                 var feedtu = document.getElementById("FEEDTU");
  50
  51                 if (feedtu) {
  52                         total_unread = feedtu.innerHTML;
  53                         update_title();
  54                 }
  55
  56                 if (first_run) {
  57                         scheduleFeedUpdate();
  58                         first_run = false;
  59                 } else {
  60                         notify("");
  61                 }
  62         }
  63 }
  64
  65 function viewfeed_callback() {
  66         var container = document.getElementById('headlines');
  67         if (xmlhttp.readyState == 4) {
  68                 container.innerHTML = xmlhttp.responseText;
  69
  70                 var factive = document.getElementById("FACTIVE");
  71                 var funread = document.getElementById("FUNREAD");
  72                 var ftotal = document.getElementById("FTOTAL");
  73
  74                 if (ftotal && factive && funread) {
  75                         var feed_id = factive.innerHTML;
  76
  77                         var feedr = document.getElementById("FEEDR-" + feed_id);
  78                         var feedt = document.getElementById("FEEDT-" + feed_id);
  79                         var feedu = document.getElementById("FEEDU-" + feed_id);
  80
  81                         feedt.innerHTML = ftotal.innerHTML;
  82                         feedu.innerHTML = funread.innerHTML;
  83
  84                         if (feedu.innerHTML > 0 && !feedr.className.match("Unread")) {
  85                                         feedr.className = feedr.className + "Unread";
  86                         } else if (feedu.innerHTML <= 0) {
  87                                         feedr.className = feedr.className.replace("Unread", "");
  88                         }
  89
  90                 }
  91
  92                 notify("");
  93
  94         }
  95 }
  96
  97 function view_callback() {
  98         var container = document.getElementById('content');
  99         if (xmlhttp.readyState == 4) {
 100                 container.innerHTML=xmlhttp.responseText;
 101         }
 102 }
 103
 104 function refetch_callback() {
 105         if (xmlhttp_rpc.readyState == 4) {
 106                 // feeds are updated in background
 107                 updateFeedList(false, false);
 108 //              notify("All feeds updated");
 109         }
 110 }
 111
 112 function scheduleFeedUpdate() {
 113
 114         notify("Updating feeds in background...");
 115
 116         var query_str = "backend.php?op=rpc&subop=forceUpdateAllFeeds";
 117
 118         if (xmlhttp_rpc.readyState == 4 || xmlhttp_rpc.readyState == 0) {
 119                 xmlhttp_rpc.open("GET", query_str, true);
 120                 xmlhttp_rpc.onreadystatechange=refetch_callback;
 121                 xmlhttp_rpc.send(null);
 122         } else {
 123                 printLockingError();
 124         }
 125 }
 126
 127 function updateFeedList(silent, fetch) {
 128
 129         if (silent != true) {
 130                 notify("Updating feed list...");
 131         }
 132
 133         var query_str = "backend.php?op=feeds";
 134
 135         if (fetch) query_str = query_str + "&fetch=yes";
 136
 137         if (xmlhttp.readyState == 4 || xmlhttp.readyState == 0) {
 138                 xmlhttp.open("GET", query_str, true);
 139                 xmlhttp.onreadystatechange=feedlist_callback;
 140                 xmlhttp.send(null);
 141         } else {
 142                 printLockingError();
 143         }
 144 }
 145
 146 function catchupPage(feed) {
 147
 148         if (xmlhttp.readyState != 4 && xmlhttp.readyState != 0) {
 149                 printLockingError();
 150                 return
 151         }
 152
 153         var content = document.getElementById("headlinesList");
 154
 155         var rows = new Array();
 156
 157         for (i = 0; i < content.rows.length; i++) {
 158                 var row_id = content.rows[i].id.replace("RROW-", "");
 159                 if (row_id.length > 0) {
 160                         rows.push(row_id);
 161                         content.rows[i].className = content.rows[i].className.replace("Unread", "");
 162                 }
 163         }
 164
 165         var feedr = document.getElementById("FEEDR-" + feed);
 166         var feedu = document.getElementById("FEEDU-" + feed);
 167
 168         feedu.innerHTML = feedu.innerHTML - rows.length;
 169
 170         if (feedu.innerHTML > 0 && !feedr.className.match("Unread")) {
 171                         feedr.className = feedr.className + "Unread";
 172         } else if (feedu.innerHTML <= 0) {
 173                         feedr.className = feedr.className.replace("Unread", "");
 174         }
 175
 176         var query_str = "backend.php?op=rpc&subop=catchupPage&ids=" +
 177                 param_escape(rows.toString());
 178
 179         notify("Marking this page as read...");
 180
 181         xmlhttp.open("GET", query_str, true);
 182         xmlhttp.onreadystatechange=notify_callback;
 183         xmlhttp.send(null);
 184
 185 }
 186
 187 function catchupAllFeeds() {
 188
 189         if (xmlhttp.readyState != 4 && xmlhttp.readyState != 0) {
 190                 printLockingError();
 191                 return
 192         }
 193         var query_str = "backend.php?op=feeds&subop=catchupAll";
 194
 195         notify("Marking all feeds as read...");
 196
 197         xmlhttp.open("GET", query_str, true);
 198         xmlhttp.onreadystatechange=feedlist_callback;
 199         xmlhttp.send(null);
 200
 201 }
 202
 203 function viewfeed(feed, skip, subop) {
 204
 205 //      document.getElementById('headlines').innerHTML='Loading headlines, please wait...';
 206 //      document.getElementById('content').innerHTML='&nbsp;';
 207
 208         if (xmlhttp.readyState != 4 && xmlhttp.readyState != 0) {
 209                 printLockingError();
 210                 return
 211         }
 212
 213         xmlhttp.open("GET", "backend.php?op=viewfeed&feed=" + param_escape(feed) +
 214                 "&skip=" + param_escape(skip) + "&subop=" + param_escape(subop) , true);
 215         xmlhttp.onreadystatechange=viewfeed_callback;
 216         xmlhttp.send(null);
 217
 218         notify("Loading headlines...");
 219
 220 }
 221
 222 function view(id,feed_id) {
 223
 224         if (xmlhttp.readyState != 4 && xmlhttp.readyState != 0) {
 225                 printLockingError();
 226                 return
 227         }
 228
 229         var crow = document.getElementById("RROW-" + id);
 230
 231         if (crow.className.match("Unread")) {
 232                 var umark = document.getElementById("FEEDU-" + feed_id);
 233                 umark.innerHTML = umark.innerHTML - 1;
 234                 crow.className = crow.className.replace("Unread", "");
 235
 236                 if (umark.innerHTML == "0") {
 237                         var feedr = document.getElementById("FEEDR-" + feed_id);
 238                         feedr.className = feedr.className.replace("Unread", "");
 239                 }
 240
 241                 total_unread--;
 242
 243                 update_title();
 244         }
 245
 246         var upd_img_pic = document.getElementById("FUPDPIC-" + id);
 247
 248         if (upd_img_pic) {
 249                 upd_img_pic.innerHTML = "";
 250         }
 251
 252         document.getElementById('content').innerHTML='Loading, please wait...';
 253
 254         xmlhttp.open("GET", "backend.php?op=view&id=" + param_escape(id), true);
 255         xmlhttp.onreadystatechange=view_callback;
 256         xmlhttp.send(null);
 257
 258 }
 259
 260 function timeout() {
 261
 262         scheduleFeedUpdate();
 263
 264         setTimeout("timeout()", 1800*1000);
 265
 266 }
 267
 268 function search(feed, sender) {
 269
 270         if (xmlhttp.readyState != 4 && xmlhttp.readyState != 0) {
 271                 printLockingError();
 272                 return
 273         }
 274
 275         notify("Search: " + feed + ", " + sender.value)
 276
 277         document.getElementById('headlines').innerHTML='Loading headlines, please wait...';
 278         document.getElementById('content').innerHTML='&nbsp;';
 279
 280         xmlhttp.open("GET", "backend.php?op=viewfeed&feed=" + param_escape(feed) +
 281                 "&search=" + param_escape(sender.value) + "&ext=SEARCH", true);
 282         xmlhttp.onreadystatechange=viewfeed_callback;
 283         xmlhttp.send(null);
 284
 285 }
 286
 287 function update_title() {
 288         //document.title = "Tiny Tiny RSS (" + total_unread + " unread)";
 289 }
 290
 291 function init() {
 292         updateFeedList(false, false);
 293         setTimeout("timeout()", 1800*1000);
 294 }