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UserPreferences.js
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123 lines (93 loc) · 3.62 KB
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if(!javaxt) var javaxt={};
if(!javaxt.express) javaxt.express={};
//******************************************************************************
//** User Preferences
//*****************************************************************************/
/**
* Used to set/get user preferences
*
******************************************************************************/
javaxt.express.UserPreferences = function(callback, scope) {
var me = this;
var preferences = {};
//**************************************************************************
//** refresh
//**************************************************************************
/** Used to retrieve user preferences from the server.
*/
this.refresh = function(callback, scope){
get("UserPreferences?fields=key,value&format=json", {
success: function(text){
preferences = {};
JSON.parse(text).forEach((r)=>{
preferences[r.key] = r.value;
});
if (!scope) scope = me;
callback.apply(scope, [clone(preferences)]);
},
failure: function(){
}
});
};
//**************************************************************************
//** getPreference
//**************************************************************************
/** Used to retrieve a specific preference.
*/
this.get = function(key){
var val = preferences[key.toLowerCase()];
if (typeof val === 'undefined') return null;
if (isObject(val)) return clone(val);
else return val;
};
//**************************************************************************
//** setPreference
//**************************************************************************
/** Used to set/update a user preference.
* @param silent If true, will update local preferences but will not save
* anything to the server
*/
this.set = function(key, value, silent){
key = key.toLowerCase().trim();
if (preferences[key]===value) return;
if (isObject(value)) value = clone(value);
if (silent===true){
preferences[key] = value;
}
else{
var preference = {
key: key,
value: value
};
post("UserPreference", JSON.stringify(preference), {
success: function(){
preferences[key] = value;
},
failure: function(){
}
});
}
};
//**************************************************************************
//** isObject
//**************************************************************************
/** Returns true if the given value is an object
*/
var isObject = function(value) {
return value != null && typeof value == 'object' && !Array.isArray(value);
};
//**************************************************************************
//** clone
//**************************************************************************
/** Returns a clone of a given object
*/
var clone = function(json){
return JSON.parse(JSON.stringify(json));
};
//**************************************************************************
//** Utils
//**************************************************************************
var post = javaxt.dhtml.utils.post;
var get = javaxt.dhtml.utils.get;
this.refresh(callback, scope);
};