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(false);
  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                 updateFeedList(true, false);
 107         }
 108 }
 109
 110 function scheduleFeedUpdate(force) {
 111
 112         notify("Updating feeds in background...");
 113
 114         var query_str = "backend.php?op=rpc&subop=";
 115
 116         if (force) {
 117                 query_str = query_str = "forceUpdateAllFeeds";
 118         } else {
 119                 query_str = query_str = "updateAllFeeds";
 120         }
 121
 122         if (xmlhttp_rpc.readyState == 4 || xmlhttp_rpc.readyState == 0) {
 123                 xmlhttp_rpc.open("GET", query_str, true);
 124                 xmlhttp_rpc.onreadystatechange=refetch_callback;
 125                 xmlhttp_rpc.send(null);
 126         } else {
 127                 printLockingError();
 128         }
 129 }
 130
 131 function updateFeedList(silent, fetch) {
 132
 133         if (silent != true) {
 134                 notify("Loading feed list...");
 135         }
 136
 137         var query_str = "backend.php?op=feeds";
 138
 139         if (fetch) query_str = query_str + "&fetch=yes";
 140
 141         if (xmlhttp.readyState == 4 || xmlhttp.readyState == 0) {
 142                 xmlhttp.open("GET", query_str, true);
 143                 xmlhttp.onreadystatechange=feedlist_callback;
 144                 xmlhttp.send(null);
 145         } else {
 146                 printLockingError();
 147         }
 148 }
 149
 150 function catchupPage(feed) {
 151
 152         if (xmlhttp.readyState != 4 && xmlhttp.readyState != 0) {
 153                 printLockingError();
 154                 return
 155         }
 156
 157         var content = document.getElementById("headlinesList");
 158
 159         var rows = new Array();
 160
 161         for (i = 0; i < content.rows.length; i++) {
 162                 var row_id = content.rows[i].id.replace("RROW-", "");
 163                 if (row_id.length > 0) {
 164                         rows.push(row_id);
 165                         content.rows[i].className = content.rows[i].className.replace("Unread", "");
 166                 }
 167         }
 168
 169         var feedr = document.getElementById("FEEDR-" + feed);
 170         var feedu = document.getElementById("FEEDU-" + feed);
 171
 172         feedu.innerHTML = feedu.innerHTML - rows.length;
 173
 174         if (feedu.innerHTML > 0 && !feedr.className.match("Unread")) {
 175                         feedr.className = feedr.className + "Unread";
 176         } else if (feedu.innerHTML <= 0) {
 177                         feedr.className = feedr.className.replace("Unread", "");
 178         }
 179
 180         var query_str = "backend.php?op=rpc&subop=catchupPage&ids=" +
 181                 param_escape(rows.toString());
 182
 183         notify("Marking this page as read...");
 184
 185         xmlhttp.open("GET", query_str, true);
 186         xmlhttp.onreadystatechange=notify_callback;
 187         xmlhttp.send(null);
 188
 189 }
 190
 191 function catchupAllFeeds() {
 192
 193         if (xmlhttp.readyState != 4 && xmlhttp.readyState != 0) {
 194                 printLockingError();
 195                 return
 196         }
 197         var query_str = "backend.php?op=feeds&subop=catchupAll";
 198
 199         notify("Marking all feeds as read...");
 200
 201         xmlhttp.open("GET", query_str, true);
 202         xmlhttp.onreadystatechange=feedlist_callback;
 203         xmlhttp.send(null);
 204
 205 }
 206
 207 function viewfeed(feed, skip, subop) {
 208
 209 //      document.getElementById('headlines').innerHTML='Loading headlines, please wait...';
 210 //      document.getElementById('content').innerHTML='&nbsp;';
 211
 212         if (xmlhttp.readyState != 4 && xmlhttp.readyState != 0) {
 213                 printLockingError();
 214                 return
 215         }
 216
 217         xmlhttp.open("GET", "backend.php?op=viewfeed&feed=" + param_escape(feed) +
 218                 "&skip=" + param_escape(skip) + "&subop=" + param_escape(subop) , true);
 219         xmlhttp.onreadystatechange=viewfeed_callback;
 220         xmlhttp.send(null);
 221
 222         notify("Loading headlines...");
 223
 224 }
 225
 226 function view(id,feed_id) {
 227
 228         if (xmlhttp.readyState != 4 && xmlhttp.readyState != 0) {
 229                 printLockingError();
 230                 return
 231         }
 232
 233         var crow = document.getElementById("RROW-" + id);
 234
 235         if (crow.className.match("Unread")) {
 236                 var umark = document.getElementById("FEEDU-" + feed_id);
 237                 umark.innerHTML = umark.innerHTML - 1;
 238                 crow.className = crow.className.replace("Unread", "");
 239
 240                 if (umark.innerHTML == "0") {
 241                         var feedr = document.getElementById("FEEDR-" + feed_id);
 242                         feedr.className = feedr.className.replace("Unread", "");
 243                 }
 244
 245                 total_unread--;
 246
 247                 update_title();
 248         }
 249
 250         var upd_img_pic = document.getElementById("FUPDPIC-" + id);
 251
 252         if (upd_img_pic) {
 253                 upd_img_pic.innerHTML = "";
 254         }
 255
 256         document.getElementById('content').innerHTML='Loading, please wait...';
 257
 258         xmlhttp.open("GET", "backend.php?op=view&id=" + param_escape(id), true);
 259         xmlhttp.onreadystatechange=view_callback;
 260         xmlhttp.send(null);
 261
 262 }
 263
 264 function timeout() {
 265
 266         scheduleFeedUpdate(true);
 267
 268         setTimeout("timeout()", 1800*1000);
 269
 270 }
 271
 272 function search(feed, sender) {
 273
 274         if (xmlhttp.readyState != 4 && xmlhttp.readyState != 0) {
 275                 printLockingError();
 276                 return
 277         }
 278
 279         notify("Search: " + feed + ", " + sender.value)
 280
 281         document.getElementById('headlines').innerHTML='Loading headlines, please wait...';
 282         document.getElementById('content').innerHTML='&nbsp;';
 283
 284         xmlhttp.open("GET", "backend.php?op=viewfeed&feed=" + param_escape(feed) +
 285                 "&search=" + param_escape(sender.value) + "&ext=SEARCH", true);
 286         xmlhttp.onreadystatechange=viewfeed_callback;
 287         xmlhttp.send(null);
 288
 289 }
 290
 291 function update_title() {
 292         //document.title = "Tiny Tiny RSS (" + total_unread + " unread)";
 293 }
 294
 295 function init() {
 296         updateFeedList(false, false);
 297         setTimeout("timeout()", 1800*1000);
 298 }