Caret/js/settings.js

186 lines
4.5 KiB
JavaScript
Raw Normal View History

define(["command"], function(command) {
var defaults = {};
var local = {};
var SyncFile = function(name, c) {
this.entry = {};
if (name) {
this.open(name, c);
}
this.virtual = true;
};
SyncFile.prototype = {
name: "",
open: function(name, c) {
this.name = name;
this.entry.name = name;
if (c) {
c(this);
}
},
read: function(c) {
var name = this.name;
chrome.storage.sync.get(this.name, function(data) {
c(null, data[name]);
});
},
write: function(content, c) {
var data = {};
data[this.name] = content;
var self = this;
chrome.storage.sync.set(data, function() {
2013-09-04 19:26:09 +00:00
command.fire("settings:change-local");
if (c) c(null, self);
});
},
retain: function() { return false; }
};
var clone = function(item) {
var cloneArray = function(a) {
var n = [];
for (var i = 0; i < a.length; i++) {
if (a[i] instanceof Array) {
n[i] = cloneArray(a[i]);
} else if (typeof a[i] == "object") {
n[i] = cloneObject(a[i]);
} else {
n[i] = a[i];
}
}
return n;
};
var cloneObject = function(o) {
var n = {};
for (var key in o) {
if (o[key] instanceof Array) {
n[key] = cloneArray(o[key]);
} else if (typeof o[key] == "object") {
n[key] = cloneObject(o[key]);
} else {
n[key] = o[key];
}
}
return n;
};
if (item instanceof Array) {
return cloneArray(item);
}
return cloneObject(item);
};
//track transfers to prevent multiple requests
var pending = {};
var Settings = {
get: function(name) {
name = name + ".json";
var comments = /\/\*[\s\S]*?\*\/|\/\/.*$/gm;
var original = clone(JSON.parse(defaults[name].replace(comments, "")));
var custom = {};
try {
custom = JSON.parse(local[name].replace(comments, ""));
} catch (e) {
//parse failed
}
//flat arrays (like menus.json) just get returned, not merged
if (custom && custom instanceof Array) {
return custom;
}
for (var key in custom) {
original[key] = custom[key];
}
return original;
},
getAsString: function(name, original) {
name = name + ".json";
if (original) {
return defaults[name];
}
return local[name] || defaults[name];
},
getAsFile: function(name) {
return new SyncFile(name + ".json");
},
load: function(name, c) {
name = name + ".json";
if (local[name] || defaults[name]) {
return c();
}
//if a request is out, tag along with it
if (pending[name]) {
pending[name].push(c);
return;
}
var onload = function() {
var raw = this.responseText.replace();
defaults[name] = raw;
chrome.storage.sync.get(name, function(data) {
if (data[name]) {
local[name] = data[name];
} else {
local[name] = defaults[name];
}
for (var i = 0; i < pending[name].length; i++) {
pending[name][i]();
}
delete pending[name]
});
};
pending[name] = [c]
var xhr = new XMLHttpRequest();
xhr.open("GET", "config/" + name);
xhr.onload = onload;
xhr.send();
}
};
command.on("settings:delete-local", function(key) {
key += ".json";
local[key] = defaults[key];
chrome.storage.sync.remove(key);
command.fire("init:restart");
});
2013-09-04 19:26:09 +00:00
command.on("settings:change-local", function() {
//reload anything that's been used
var keys = Object.keys(defaults).map(function(n) { return n.replace(".json", "")});
local = {};
defaults = {};
var completed = 0;
keys.forEach(function(key) {
Settings.load(key, function() {
completed++;
if (completed == keys.length) {
command.fire("init:restart");
}
});
});
});
return {
load: function(name, parentRequire, onLoad, config) {
if (name.length == 0) {
return onLoad(Settings);
}
var files = name.split(",");
var completed = 0;
files.forEach(function(file) {
Settings.load(file, function() {
completed++;
if (completed == files.length) {
onLoad(Settings);
}
})
});
}
}
});