www/manager6/data/UpdateStore.js

   1 /* Extends the Ext.data.Store type
   2  * with  startUpdate() and stopUpdate() methods
   3  * to refresh the store data in the background
   4  * Components using this store directly will flicker
   5  * due to the redisplay of the element ater 'config.interval' ms
   6  */
   7 Ext.define('PVE.data.UpdateStore', {
   8     extend: 'Ext.data.Store',
   9
  10     constructor: function(config) {
  11         var me = this;
  12
  13         config = config || {};
  14
  15         if (!config.interval) {
  16             config.interval = 3000;
  17         }
  18
  19         if (!config.storeid) {
  20             throw "no storeid specified";
  21         }
  22
  23         var load_task = new Ext.util.DelayedTask();
  24
  25         var run_load_task = function() {
  26             if (PVE.Utils.authOK()) {
  27                 PVE.data.UpdateQueue.queue(me, function(runtime, success) {
  28                     var interval = config.interval + runtime*2;
  29                     load_task.delay(interval, run_load_task);
  30                 });
  31             } else {
  32                 load_task.delay(200, run_load_task);
  33             }
  34         };
  35
  36         Ext.apply(config, {
  37             startUpdate: function() {
  38                 run_load_task();
  39             },
  40             stopUpdate: function() {
  41                 load_task.cancel();
  42             }
  43         });
  44
  45         me.callParent([config]);
  46
  47         me.on('destroy', function() {
  48             load_task.cancel();
  49         });
  50     }
  51 });