utils/notifier/background.html

   1 <html>
   2 <script type="text/javascript">
   3
   4 var last_updated = 0;
   5 var prefs_last_updated = 0;
   6
   7 function param_escape(arg) {
   8         if (typeof encodeURIComponent != 'undefined')
   9                 return encodeURIComponent(arg);
  10         else
  11                 return escape(arg);
  12 }
  13
  14 function update() {
  15         var d = new Date();
  16         var login = localStorage["login"];
  17
  18         var requestUrl = localStorage["site_url"] + "/backend.php";
  19         var params = "op=getUnread&login=" + param_escape(login);
  20
  21         var xhr = new XMLHttpRequest();
  22
  23
  24         xhr.open("POST", requestUrl, true);
  25         xhr.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
  26         xhr.send(params);
  27
  28         xhr.onreadystatechange = function() {
  29                 if (xhr.readyState == 4) {
  30
  31                         var icon = new Object();
  32                         var title = new Object();
  33
  34                         if (xhr.status == 200) {
  35                                 var unread = parseInt(xhr.responseText);
  36
  37                                 if (unread > 0) {
  38                                         icon.path = "images/alert.png";
  39                                         title.title = "You have %s unread articles.".replace("%s", unread);
  40                                 } else {
  41                                         icon.path = "images/normal.png";
  42                                         title.title = "You have no unread articles.";
  43                                 }
  44
  45                                 localStorage["last_updated"] = d.getTime();
  46                                 localStorage["last_error"] = "";
  47                         } else {
  48                                 localStorage["last_error"] = xhr.responseText;
  49
  50                                 icon.path = "images/error.png";
  51                                 title.title = "Error (%s) while requesting article information.".replace("%s", xhr.status);
  52                         }
  53
  54                         chrome.browserAction.setTitle(title);
  55                         chrome.browserAction.setIcon(icon);
  56
  57                 }
  58         };
  59
  60 }
  61
  62 function timeout() {
  63
  64         var update_interval;
  65         var prefs_updated;
  66
  67         if (localStorage["update_interval"])
  68                 update_interval = localStorage["update_interval"] * 60 * 1000;
  69         else
  70                 update_interval = 15 * 60 * 1000;
  71
  72         if (localStorage["prefs_updated"])
  73                 prefs_updated = localStorage["prefs_updated"];
  74         else
  75                 prefs_updated = -1;
  76
  77         var d = new Date();
  78
  79         if (d.getTime() > last_updated + update_interval ||
  80                         prefs_updated != prefs_last_updated) {
  81
  82                 last_updated = d.getTime();
  83                 prefs_last_updated = prefs_updated;
  84                 try {
  85                         update();
  86                 } catch (e) {
  87                         //
  88                 }
  89         }
  90
  91         window.setTimeout("timeout()", 1000);
  92 }
  93
  94 function init() {
  95
  96         chrome.browserAction.onClicked.addListener(function() {
  97                 var site_url = localStorage['site_url'];
  98
  99                 if (site_url) {
 100                         var cp = new Object();
 101
 102                         cp.url = site_url;
 103
 104                         chrome.tabs.create(cp);
 105                 }
 106
 107         });
 108
 109         window.setTimeout("timeout()", 1000);
 110
 111 }
 112 </script>
 113
 114 <body onload="init()"> </body>
 115
 116 </html>