Mercurial > repos > jankanis > blast2html

annotate Blast output page example_files/remote_data_provider.js @ 10:2fbdf2eb27b4

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All data is displayed now, still some formatting to do
author Jan Kanis <jan.code@jankanis.nl>
date Fri, 09 May 2014 18:16:48 +0200
parents bad241dc701f
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1 //=========================================================================================================
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2 function RemoteDataProvider(sUrl) {
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3 this.iActiveRequests = 0;
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4 this.sUrl = sUrl;
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5 }
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6
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7 //-------------------------------------------------------------------------------------------------------------
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8 RemoteDataProvider.prototype.GetHttpObj = function() {
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9 var oHttpObj = null;
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10 try {
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11 oHttpObj = new ActiveXObject("Msxml2.XMLHTTP");
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12 } catch(e) {
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13 try {
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14 oHttpObj = new ActiveXObject("Microsoft.XMLHTTP")
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15 } catch(oc) {
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16 oHttpObj = null;
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17 }
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18 }
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19 if (!oHttpObj && typeof XMLHttpRequest != "undefined") {
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20 oHttpObj = new XMLHttpRequest();
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21 }
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22 return oHttpObj;
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23 }
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24
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25 //-------------------------------------------------------------------------------------------------------------
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26 RemoteDataProvider.prototype.Request = function(sRequest, method) {
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27 var oHttpObj = this.GetHttpObj();
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28 if (null == oHttpObj) return;
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29
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30 method = (!method) ? "GET" : "POST";
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31 var sURL = (method == "GET") ? this.sUrl + "?" + sRequest : this.sUrl; //alert(sURL);
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32 this.iActiveRequests++;
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33 var oThis = this;
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34 oHttpObj.onreadystatechange = function () {
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35 if (oHttpObj.readyState == 4 && oHttpObj.status == 200) {
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36 oThis.onSuccess(oHttpObj);
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37 oThis.iActiveRequests--;
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38 oThis.onStop();
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39 } else if(oHttpObj.readyState == 4 && oHttpObj.status != 200) {
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40 oThis.onError(oHttpObj);
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41 oThis.iActiveRequests--;
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42 oThis.onStop();
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43 }
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44 };
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45
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46 if (oHttpObj.readyState != 0) oHttpObj.abort();
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47 this.onStart();
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48 oHttpObj.open(method, sURL, true);
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49 // oHttpObj.setRequestHeader('Cache-Control', 'no-cache');
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50 var params = (method == "GET") ? null : sRequest;
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51 if (params) {
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52 oHttpObj.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
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53 oHttpObj.setRequestHeader("Content-length", params.length);
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54 oHttpObj.setRequestHeader("Connection", "close");
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55 }
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56 oHttpObj.send(params);
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57 }
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58
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59 //-------------------------------------------------------------------------------------------------------------
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60 RemoteDataProvider.prototype.onSuccess = function(obj) {
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61 alert(["success:", this.iActiveRequests, obj.responseText]);
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62 }
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63
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64 //-------------------------------------------------------------------------------------------------------------
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65 RemoteDataProvider.prototype.onStart = function() {
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66 // alert(["start:", this.iActiveRequests]);
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67 }
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68
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69 //-------------------------------------------------------------------------------------------------------------
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70 RemoteDataProvider.prototype.onStop = function() {
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71 // alert(["start:", this.iActiveRequests]);
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72 }
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73
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74 //-------------------------------------------------------------------------------------------------------------
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75 RemoteDataProvider.prototype.onError = function(obj) {
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76 //alert(["error:", this.iActiveRequests, obj.status]);
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77 }
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