52 lines
1.2 KiB
JavaScript
52 lines
1.2 KiB
JavaScript
var App = App || {};
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App.State = function() {
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var properties = {};
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var observers = {};
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function get(key) {
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return properties[key];
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}
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function set(key, value) {
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properties[key] = value;
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if (key in observers) {
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for (var observerName in observers[key]) {
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if (observers[key].hasOwnProperty(observerName)) {
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observers[key][observerName](key, value);
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}
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}
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}
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}
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function startObserving(key, observerName, callback) {
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if (!(key in observers)) {
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observers[key] = {};
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}
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if (!(observerName in observers[key])) {
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observers[key][observerName] = {};
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}
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observers[key][observerName] = callback;
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}
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function stopObserving(key, observerName) {
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if (!(key in observers)) {
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return;
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}
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if (!(observerName in observers[key])) {
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return;
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}
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delete observers[key][observerName];
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}
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return {
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get: get,
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set: set,
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startObserving: startObserving,
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stopObserving: stopObserving,
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};
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};
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App.DI.registerSingleton('appState', [], App.State);
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