0.6.x/js/04_net/00_XNet.js

   1 // TODO  onlineevent offlineevent, netspeed\r
   2 X.Net = {\r
   3 \r
   4         xhrGet : function( url ){\r
   5                 return new X_NET_Queue( X_NET_TYPE_XHR, { method : 'GET', url : url } );\r
   6         },\r
   7         \r
   8         xhrPost : function( url, data ){\r
   9                 return new X_NET_Queue( X_NET_TYPE_XHR, { method : 'POST', url : url, postbody : postbody } );\r
  10         },\r
  11         \r
  12         formGet : function(){\r
  13                 \r
  14         },\r
  15         \r
  16         formPost : function(){\r
  17                 \r
  18         },\r
  19         \r
  20         // TODO chashe\r
  21         // TODO iframe useful or not.\r
  22         jsonp : function( url, useIframe ){\r
  23                 return new X_NET_Queue( X_NET_TYPE_JSONP, url );\r
  24         },\r
  25         \r
  26         image : function( url, useIframe ){\r
  27                 \r
  28         },\r
  29         \r
  30         amountQueue : function(){\r
  31                 return X_NET_QUEUE_LIST.length;\r
  32         }\r
  33 \r
  34 };\r
  35 \r
  36 \r
  37 var X_NET_IWrapper = function(){};\r
  38         X_NET_IWrapper.prototype.load   = function(){};\r
  39         X_NET_IWrapper.prototype.cancel = function(){};\r
  40         X_NET_IWrapper.prototype.reset  = function(){};\r
  41 \r
  42 \r
  43 var X_NET_TYPE_XHR   = 1,\r
  44         X_NET_TYPE_JSONP = 2,\r
  45         X_NET_TYPE_FORM  = 3,\r
  46 \r
  47         X_NET_QUEUE_LIST = [],\r
  48 \r
  49         X_NET_XHRWrapper,\r
  50         X_NET_JSONPWrapper,\r
  51         X_NET_FORMWrapper,\r
  52 \r
  53         X_NET_currentWrapper,\r
  54         X_NET_currentQueue,\r
  55 \r
  56         X_NET_Queue = X.EventDispatcher.inherits(\r
  57                 'XNetQueue',\r
  58                 X.Class.POOL_OBJECT,\r
  59                 {\r
  60                         type : 0,\r
  61                         data : null,\r
  62                         \r
  63                         Constructor : function( type, data ){\r
  64                                 this.type = type;\r
  65                                 this.data = data;                               \r
  66                                 \r
  67                                 this.listen( X.Event.COMPLETE, X_NET_proxyDispatch );\r
  68                                 \r
  69                                 X_NET_QUEUE_LIST[ X_NET_QUEUE_LIST.length ] = this;\r
  70                                 !X_NET_currentQueue && X_NET_shiftQueue();\r
  71                         },\r
  72                         \r
  73                         busy : function(){\r
  74                                 return this === X_NET_currentQueue && X_NET_currentWrapper._busy;\r
  75                         },\r
  76                         \r
  77                         cancel : function(){\r
  78                                 var i = X_NET_QUEUE_LIST.indexOf( this );\r
  79                                 if( i !== -1 ){\r
  80                                         X_NET_QUEUE_LIST.splice( i, 1 );\r
  81                                         this.asyncDispatch( 0, { type : X.Event.CANCELED } );\r
  82                                 } else\r
  83                                 if( this === X_NET_currentQueue ){\r
  84                                         X_NET_currentWrapper.cancel();\r
  85                                 };\r
  86                         }\r
  87                 }\r
  88         );\r
  89 \r
  90 function X_NET_proxyDispatch( e ){\r
  91         switch( e.type ){\r
  92                 case X.Event.BEFORE_KILL_INSTANCE :\r
  93                         break;\r
  94                 case X.Event.KILL_INSTANCE :\r
  95                         break;                  \r
  96                 case X.Event.KILL_INSTANCE_CANCELED :\r
  97                         break;\r
  98                 case X.Event.PROGRESS :\r
  99                         console.log( 'q: ' + e.type );\r
 100                         this.dispatch( e );\r
 101                         break;\r
 102                 case X.Event.SUCCESS :\r
 103                 case X.Event.ERROR :\r
 104                 case X.Event.CANCELED :\r
 105                         console.log( 'q: ' + e.type );\r
 106                         this.dispatch( e );\r
 107                         this.asyncDispatch( 0, { type : X.Event.COMPLETE } );\r
 108                         break;\r
 109                 case X.Event.COMPLETE :\r
 110                         console.log( 'complete. then kill()' );\r
 111                         this.kill();\r
 112                         X_NET_shiftQueue();\r
 113                         break;          \r
 114         };\r
 115 };\r
 116 \r
 117 function X_NET_shiftQueue(){\r
 118         var queue;\r
 119         \r
 120         if( X_NET_currentQueue ){\r
 121                 if( X_NET_currentWrapper._busy ) return;\r
 122                 X_NET_currentWrapper\r
 123                         .unlisten( [ X.Event.SUCCESS, X.Event.ERROR, X.Event.PROGRESS ], X_NET_currentQueue, X_NET_proxyDispatch )\r
 124                         .reset();\r
 125                 X_NET_currentQueue = X_NET_currentWrapper = null;\r
 126         };\r
 127         \r
 128         if( !X_NET_QUEUE_LIST.length ) return;\r
 129 \r
 130         queue = X_NET_QUEUE_LIST.shift();\r
 131         \r
 132         switch( queue.type ){\r
 133                 case X_NET_TYPE_XHR :\r
 134                         X_NET_currentWrapper = X_NET_XHRWrapper;\r
 135                         break;\r
 136                 case X_NET_TYPE_JSONP :\r
 137                         X_NET_currentWrapper = X_NET_JSONPWrapper;\r
 138                         break;\r
 139                 case X_NET_TYPE_FORM :\r
 140                         X_NET_currentWrapper = X_NET_FORMWrapper;\r
 141                         break;\r
 142         };\r
 143         \r
 144         X_NET_currentWrapper.listen( [ X.Event.SUCCESS, X.Event.ERROR, X.Event.PROGRESS ], X_NET_currentQueue = queue, X_NET_proxyDispatch );\r
 145         \r
 146         X_NET_currentWrapper.load( queue.data );\r
 147 };\r
 148 \r