wangtao
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fireInternet


			
				
					
						
						
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  <pre class="prettyprint lang-js"><span id='Ext-state-Manager'>/**
</span> * @class Ext.state.Manager
 * This is the global state manager. By default all components that are &quot;state aware&quot; 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:
 &lt;pre&gt;&lt;code&gt;
// in your initialization function
init : function(){
   Ext.state.Manager.setProvider(new Ext.state.CookieProvider());
}
 &lt;/code&gt;&lt;/pre&gt;
 * 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.
 * @singleton
 * @docauthor Evan Trimboli &lt;evan@sencha.com&gt;
 */
Ext.define('Ext.state.Manager', {
    singleton: true,
    requires: ['Ext.state.Provider'],
    constructor: function() {
        this.provider = new Ext.state.Provider();
    },
    
    
<span id='Ext-state-Manager-method-setProvider'>    /**
</span>     * Configures the default state provider for your application
     * @param {Ext.state.Provider} stateProvider The state provider to set
     */
    setProvider : function(stateProvider){
        this.provider = stateProvider;
    },

<span id='Ext-state-Manager-method-get'>    /**
</span>     * Returns the current value for a key
     * @param {String} name 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);
    },

<span id='Ext-state-Manager-method-set'>    /**
</span>     * Sets the value for a key
     * @param {String} name The key name
     * @param {Object} value The state data
     */
     set : function(key, value){
        this.provider.set(key, value);
    },

<span id='Ext-state-Manager-method-clear'>    /**
</span>     * Clears a value from the state
     * @param {String} name The key name
     */
    clear : function(key){
        this.provider.clear(key);
    },

<span id='Ext-state-Manager-method-getProvider'>    /**
</span>     * Gets the currently configured state provider
     * @return {Ext.state.Provider} The state provider
     */
    getProvider : function(){
        return this.provider;
    }
});</pre>
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