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// See http://diveintohtml5.info/storage.html
function supports_html5_storage() {
try {
return 'localStorage' in window && window['localStorage'] !== null;
} catch (e) {
return false;
}
}
// An interface to localStorage to store JSON data under a unique prefix
function appLocalStorage(appPrefix,fakeIt) {
function methods(storage) {
return {
get: function (name,def) {
var id=appPrefix+name
return storage[id] ? JSON.parse(storage[id]) : def;
},
put: function (name,value) {
var id=appPrefix+name;
storage[id]=JSON.stringify(value);
},
remove: function(name) {
var id=appPrefix+name;
delete storage[id]
},
ls: function(prefix) {
var pre=appPrefix+prefix
var files=[]
for(var i in storage)
if(hasPrefix(i,pre)) files.push(i.substr(pre.length))
files.sort()
return files
},
get count() { return this.get("count",0); },
set count(v) { this.put("count",v); }
}
}
function get_html5_storage() {
try {
return 'localStorage' in window && window['localStorage'] || []
} catch (e) {
return []; // fake it
}
}
return methods(fakeIt || get_html5_storage())
}
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