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Added Scholar.HTTP.browserIsOffline() and changed doGet() and doPost() to return false if so

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Dan Stillman 2006-06-15 16:52:46 +00:00
parent 11a056ecd4
commit 2d20fe717d
1 changed files with 29 additions and 0 deletions
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29
chrome/chromeFiles/content/scholar/xpcom/scholar.js
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@ -327,8 +327,18 @@ Scholar.HTTP = new function(){
this.doGet = doGet; this.doGet = doGet;
this.doPost = doPost; this.doPost = doPost;
this.browserIsOffline = browserIsOffline;
/**
* Send an HTTP GET request via XMLHTTPRequest
*
* Returns false if browser is offline
**/
function doGet(url, onStatus, onDone){ function doGet(url, onStatus, onDone){
if (this.browserIsOffline()){
return false;
}
var xmlhttp = Components.classes["@mozilla.org/xmlextras/xmlhttprequest;1"] var xmlhttp = Components.classes["@mozilla.org/xmlextras/xmlhttprequest;1"]
.createInstance(); .createInstance();
@ -338,10 +348,21 @@ Scholar.HTTP = new function(){
_stateChange(xmlhttp, onStatus, onDone); _stateChange(xmlhttp, onStatus, onDone);
}; };
xmlhttp.send(null); xmlhttp.send(null);
return true;
} }
/**
* Send an HTTP POST request via XMLHTTPRequest
*
* Returns false if browser is offline
**/
function doPost(url, body, onStatus, onDone){ function doPost(url, body, onStatus, onDone){
if (this.browserIsOffline()){
return false;
}
var xmlhttp = Components.classes["@mozilla.org/xmlextras/xmlhttprequest;1"] var xmlhttp = Components.classes["@mozilla.org/xmlextras/xmlhttprequest;1"]
.createInstance(); .createInstance();
@ -351,6 +372,14 @@ Scholar.HTTP = new function(){
_stateChange(xmlhttp, onStatus, onDone); _stateChange(xmlhttp, onStatus, onDone);
}; };
xmlhttp.send(body); xmlhttp.send(body);
return true;
}
function browserIsOffline(){
return Components.classes["@mozilla.org/network/io-service;1"]
.getService(Components.interfaces.nsIIOService).offline;
} }