/** * This is the global state manager. By default all components that are "state aware" check this class * for state information if you don't pass them a custom state provider. In order for this class * to be useful, it must be initialized with a provider when your application initializes. Example usage: * * // in your initialization function * init: function() { * Ext.state.Manager.setProvider(new Ext.state.CookieProvider()); * } * * This class passes on calls from components to the underlying {@link Ext.state.Provider} so that * there is a common interface that can be used without needing to refer to a specific provider instance * in every component. */Ext.define('Ext.state.Manager', { singleton: true, requires: ['Ext.state.Provider'], constructor: function() { this.provider = new Ext.state.Provider(); }, /** * Configures the default state provider for your application * @param {Ext.state.Provider} stateProvider The state provider to set */ setProvider: function (stateProvider) { this.provider = stateProvider; }, /** * Returns the current value for a key * @param {String} key The key name * @param {Object} defaultValue The default value to return if the key lookup does not match * @return {Object} The state data */ get: function (key, defaultValue) { return this.provider.get(key, defaultValue); }, /** * Sets the value for a key * @param {String} key The key name * @param {Object} value The state data */ set: function (key, value) { this.provider.set(key, value); }, /** * Clears a value from the state * @param {String} key The key name */ clear: function (key) { this.provider.clear(key); }, /** * Gets the currently configured state provider * @return {Ext.state.Provider} The state provider */ getProvider: function () { return this.provider; }});