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Network errors can be handled by the app

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This commit is contained in:
Pierre 2017-06-07 17:26:51 +02:00
parent bb14c3bb49
commit ee02b522bf
5 changed files with 120 additions and 49 deletions
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14
assets/css/common/network/networkError.css Normal file
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@ -0,0 +1,14 @@
/**
* Network error stylesheet
*
* @author Pierre HUBERT
*/
#networkErrorMessage {
position: fixed;
bottom: 2px;
left: 1px;
width: 300px;
max-width: 100%;
text-align: justify;
}

11
assets/js/common/api.js
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@ -51,6 +51,17 @@ ComunicWeb.common.api.makeAPIrequest = function(apiURI, params, requireLoginToke
apiXHR.onreadystatechange = function(){
//We continue only if request is terminated
if(apiXHR.readyState == 4){
//Check if response code is 0
if(apiXHR.status == 0){
//An error occured
ComunicWeb.common.network.setStatus(false);
}
else{
//It is a success
ComunicWeb.common.network.setStatus(true);
}
//Prepare result
var result = JSON.parse(apiXHR.responseText);

5
assets/js/common/functionsSchema.js
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@ -202,6 +202,11 @@ var ComunicWeb = {
* Make a get request
*/
getRequest: function(url, cache, GETnextAction){},
/**
* Update the status of the network
*/
setStatus: function(success){},
},
/**

138
assets/js/common/network.js
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@ -6,61 +6,101 @@
ComunicWeb.common.network = {
/**
* @var {object} Cache contener
*/
cache: {},
/**
* @var {object} Cache contener
*/
cache: {},
/**
* Make a GET request
*
* @param {String} url Destination URL
* @param {Boolean} cacheResponse Specify if data can be cached or not (optimize network)
* @param {function} GETnextAction What to do next
* @return {Boolean} False if it fails
*/
getRequest: function(url, cacheResponse, GETnextAction){
//First, check if it is required to cache the request
if(cacheResponse){
//Prepare cache entry name
var cacheEntryName = encodeURIComponent(url);
/**
* Make a GET request
*
* @param {String} url Destination URL
* @param {Boolean} cacheResponse Specify if data can be cached or not (optimize network)
* @param {function} GETnextAction What to do next
* @return {Boolean} False if it fails
*/
getRequest: function(url, cacheResponse, GETnextAction){
//First, check if it is required to cache the request
if(cacheResponse){
//Prepare cache entry name
var cacheEntryName = encodeURIComponent(url);
//Check if entry exists
if(this.cache[cacheEntryName]){
//Call next action with the url contained into the cache
GETnextAction(this.cache[cacheEntryName]);
//Check if entry exists
if(this.cache[cacheEntryName]){
//Call next action with the url contained into the cache
GETnextAction(this.cache[cacheEntryName]);
//Quit function
return true;
}
}
//Quit function
return true;
}
}
//No cache entry where found or cache is disabled, continue
var xhrRequest = new XMLHttpRequest();
xhrRequest.open("GET", url);
//No cache entry where found or cache is disabled, continue
var xhrRequest = new XMLHttpRequest();
xhrRequest.open("GET", url);
xhrRequest.onreadystatechange = function(){
if(xhrRequest.readyState == 4){
//We check if it is an error
if(xhrRequest.status != 200){
//It's an error, we will quit soon, but debug message before
ComunicWeb.debug.logMessage("GET request failed on " + url + " Got response code " + xhrRequest.status);
return false;
}
//Check if it is required to cache result
if(cacheResponse){
ComunicWeb.common.network.cache[cacheEntryName] = xhrRequest.responseText;
}
xhrRequest.onreadystatechange = function(){
if(xhrRequest.readyState == 4){
//We check if it is an error
if(xhrRequest.status != 200){
//It's an error, we will quit soon, but debug message before
ComunicWeb.debug.logMessage("GET request failed on " + url + " Got response code " + xhrRequest.status);
return false;
}
//Check if it is required to cache result
if(cacheResponse){
ComunicWeb.common.network.cache[cacheEntryName] = xhrRequest.responseText;
}
ComunicWeb.debug.logMessage("GET request: " + url + " Success (" + xhrRequest.status + ")");
ComunicWeb.debug.logMessage("GET request: " + url + " Success (" + xhrRequest.status + ")");
//Call next action
GETnextAction(xhrRequest.responseText);
}
}
//Call next action
GETnextAction(xhrRequest.responseText);
}
}
//Perform request
xhrRequest.send(null);
},
//Perform request
xhrRequest.send(null);
},
/**
* Update the status of the network
*
* @param {Boolean} success True for a successful request, false else
* @return {Boolean} True for a success
*/
setStatus: function(success){
//If the request is the success, hide error message
if(success){
//Check if an error message was present on the screen
if(byId("networkErrorMessage")){
//Hide it
byId("networkErrorMessage").style.display = "none";
}
}
//If we encountered a network error, display an error message
if(!success){
//Log state
ComunicWeb.debug.logMessage("NETWORK ERROR : It's seems a network request has just echoed... Please check the network !");
//Check if error message exists or not
if(!byId("networkErrorMessage")){
//Create error message contener
var networkErrorMessage = createElem("div", document.body);
networkErrorMessage.id = "networkErrorMessage";
//Create a callout element within it
var errorName = "<i class='fa fa-warning'></i> "+"Network error";
var errorMessage = "It seems that there is a network error, and Comunic can't access to the Internet anymore... Please check your internet connexion...";
var errorCallout = ComunicWeb.common.messages.createCalloutElem(errorName, errorMessage, "danger");
networkErrorMessage.appendChild(errorCallout)
}
//Make sure the error message is visible on the screen
byId("networkErrorMessage").style.display = "block";
}
}
};

1
corePage/config/dev.config.php
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@ -23,6 +23,7 @@ $config['CSSfiles'] = array(
//App stylesheets
"%PATH_ASSETS%css/common/global.css",
"%PATH_ASSETS%css/common/page/waitSplashScreen.css",
"%PATH_ASSETS%css/common/network/networkError.css",
//Components stylesheets
"%PATH_ASSETS%css/components/menuBar.css",