org.argeo.slc.webapp/src/main/webapp/source/class/org/argeo/slc/web/util/RequestManager.js

   1 qx.Class.define("org.argeo.slc.web.util.RequestManager",
   2 {
   3         type : "singleton",
   4         extend : qx.core.Object,
   5
   6         events : {
   7                 "reload" : "org.argeo.slc.web.event.ReloadEvent"
   8         },
   9
  10         construct : function(){
  11                 this.base(arguments);
  12         },
  13
  14         members : {
  15
  16                 setStopCommand : function(stopCommand){
  17                         this.command = stopCommand;
  18                 },
  19
  20                 getRequest : function(url, method, responseType, fireReloadEventType, iLoadStatusables){
  21                         var request = new qx.io.remote.Request(url, method, responseType);
  22                         if(iLoadStatusables){
  23                                 request.setUserData("iLoadStatusables", iLoadStatusables);
  24                         }
  25                         if(fireReloadEventType){
  26                                 request.addListener("completed", function(response){
  27                                         this.fireReloadEvent(fireReloadEventType, response.getContent());
  28                                 }, this);
  29                         }
  30                         this.enableCommand(request);
  31                         request.addListener("timeout", this.requestTerminated, this);
  32                         request.addListener("failed", this.requestTerminated, this);
  33                         request.addListener("aborted", this.requestTerminated, this);
  34                         request.addListener("completed", this.requestCompleted, this);
  35                         return request;
  36                 },
  37
  38                 fireReloadEvent : function(dataType, content){
  39                         this.fireEvent("reload", org.argeo.slc.web.event.ReloadEvent, [dataType, content]);
  40                 },
  41
  42                 requestCreated : function(e){
  43                         var request = e.getTarget();
  44                         this.enableCommand(request);
  45                 },
  46
  47                 requestCompleted : function(e){
  48                         var request = e.getTarget();
  49                         this.disableCommand(request);
  50                 },
  51
  52                 requestTerminated : function(e){
  53                         var request = e.getTarget();
  54                         var errorType = e.getType();
  55                         this.disableCommand(request);
  56                         var message = "";
  57                         if(errorType == "aborted"){
  58                                 message = "Request aborted by user";
  59                         }else if(errorType == "failed"){
  60                                 message = "Request failed!";
  61                         }else if(errorType == "timeout"){
  62                                 message = "Request timed out!";
  63                         }
  64                         this.error(message);
  65                 },
  66
  67                 disableCommand : function(request){
  68                         this.command.setEnabled(false);
  69                         if(request.getUserData("iLoadStatusables")){
  70                                 this.updateGuiParts(request.getUserData("iLoadStatusables"), false);
  71                         }
  72                         var listener = request.getUserData("listener");
  73                         if(listener){
  74                                 this.command.removeListener("execute", listener);
  75                         }
  76                 },
  77
  78                 enableCommand : function(request){
  79                         this.command.setEnabled(true);
  80                         if(request.getUserData("iLoadStatusables")){
  81                                 this.updateGuiParts(request.getUserData("iLoadStatusables"), true);
  82                         }
  83                         qx.ui.core.queue.Manager.flush();
  84                         var listener = request.abort;
  85                         request.setUserData("listener", listener);
  86                         this.command.addListener("execute", listener, request);
  87                 },
  88
  89                 updateGuiParts : function(iLoadStatusables, loadStatus){
  90                         for(var i=0;i<iLoadStatusables.length;i++){
  91                                 if(qx.Class.implementsInterface(qx.Class.getByName(iLoadStatusables[i].classname), org.argeo.slc.web.components.ILoadStatusable)){
  92                                         iLoadStatusables[i].setOnLoad(loadStatus);
  93                                 }else{
  94                                         this.debug("Does not implement the ILoadStatusable interface! GUIPART type : "+ iLoadStatusables[i].classname);
  95                                 }
  96                         }
  97                 }
  98         }
  99 });