Extjs round-robin chat

Client: jqm

Server: php

Manager: extjs

The client and manager use polling to check whether messages are sent to the server. The method is resource-consuming.

Some manager Code:

MonitorChatMessage: function (){

Var me = this;

// Timer task
Var getMsgNotify = function (){

Me. getClientMsgNotify (me. token );
};

Var runner = new Ext. util. TaskRunner ();
Var task = runner. start ({
Run: getMsgNotify,
Interval: 5000
});

}

// Request client messages from the server

Getclientmsgpolicy: function (token ){

Var me = this;
Var index = 1;

Ext. Ajax. request ({

Url: 'http: // localhost/wc/server/talk. php ',
Method: 'post ',
Params :{
Token: token,
Function: 'getnewmsgpolicy'
},

Success: function (res, opts ){

Var result = Ext. JSON. decode (res. responseText );
If (result. success ){

Var userTree = me. getChatUserTree ();
// Obtain the root node
Var root = userTree. getRootNode ();
Var uidArray = result. data;
// Root. eachChild (renderNode, uidArray );
For (index in uidArray ){

If (root. findChild ('uid', uidArray [index]. uid) = null ){

Root. insertChild (0 ,{
Id: uidArray [index]. uid,
Uid: uidArray [index]. uid,
Text: uidArray [index]. uid,
Leaf: 1,
ParentId: 0,
});

}
}


}
}


});

}

Ui: Double-click to reply to the recipient

Debugger;

If (cellIndex = 2) {// reply to me

Var mid = record. get ('mid ');
Var smsg = record. get ('smsg ');
Var rmsg = record. get ('rmsg ');
Var replyObj = new Object ();
ReplyObj. rmsg = rmsg;
ReplyObj. reply = "";

// Start the reply Interface
Var replyMsg = this. startReplyWindow (mid, smsg, replyObj );
Record. beginEdit ();
Record. set ('rmsg ', replyObj. reply );
Record. endEdit ();

This. getChatMessagStoreStore (). load ();
}

StartReplyWindow

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Advantages: easy to implement
Disadvantage: Resource Consumption
After several days, I tried to replace the round-robin method with the socket persistent connection method. Nodejs is used for implementation.