/**
     * DO NOT ADD TO DIRECTLY
     *
     * Object serving as hash table for child Components using the Component's id variable as a key.
     * To add components use [addComponent()]{@link jibo.face.views.ComponentGroup#addComponent}
     * @name jibo.face.views.ComponentGroup#componentLibrary
     * @type {Object}
     * @protected
     */

    /**
     * DO NOT ADD TO DIRECTLY
     *
     * Array of child Components.
     * To add components use [addComponent()]{@link jibo.face.views.ComponentGroup#addComponent}
     * @name jibo.face.views.ComponentGroup#componentList
     * @type {jibo.face.views.Component[]}
     * @protected
     */

    /**
     * DO NOT WRITE DIRECTLY
     *
     * Array of config Objects (generally derived from JSON).
     * Gets defined within various creation methods.
     * @name jibo.face.views.ComponentGroup#componentConfigs
     * @type {any[]}
     * @protected
     */

    /**
     * Container for displays, is set within [createDisplay()]{@link jibo.face.views.Component#createDisplay}
     * which receives the container as a parameter.
     * @name jibo.face.views.ComponentGroup#container
     * @type {PIXI.Container}
     * @protected
     */

    /**
     * List of Components that have registered to be updated.
     * @name jibo.face.views.ComponentGroup#_updateRegistry
     * @type {jibo.face.views.Component[]}
     * @private
     */

    /**
     * Get the number of child components.
     * @name jibo.face.views.ComponentGroup#componentsTotal
     * @type {number}
     * @readOnly
     */

    /**
     * List of assets required by the ComponentGroup and its Component children.
     * Compiles list of all assets on each call.
     * @name jibo.face.views.ComponentGroup#assetDescriptors
     * @type {jibo.face.views~AssetDescriptor[]}
     * @readOnly
     */

    /**
     * FOR OVERRIDE ONLY. DO NOT CALL.
     *
     * Compiles together required assets for the ComponentGroup and its children.
     * @name jibo.face.views.ComponentGroup#groupAssetDescriptors
     * @type {jibo.face.views~AssetDescriptor[]}
     * @readonly
     * @protected
     */

    /**
     * Turn the interactivity of the child components off or on.
     * @method jibo.face.views.ComponentGroup#lockInput
     * @param {boolean} flag - Flag to turn interactivity on or off.
     */

    /**
     * Turn the interactivity of the child components off or on.
     * @method jibo.face.views.ComponentGroup#lockChildInput
     * @param {boolean} flag - Flag to turn interactivity on or off.
     * @protected
     */

    /**
     * FOR OVERRIDE ONLY. DO NOT CALL.
     *
     * Update configuration Object to reflect the current configuration state.
     * This ensures that when the Component is recreated from its configuration it reflects its last state.
     * @method jibo.face.views.ComponentGroup#updateConfig
     * @param {Object} configObject Configuration Object to update.
     * @returns {any} The given configuration Object with any required values updates applied.
     */

    /**
     * Add component to this ComponentGroup, allows parent and child to reference to each other.
     * @method jibo.face.views.ComponentGroup#addComponent
     * @param {jibo.face.views.Component} component The Component to add this group's component list and library.
     * @param {String} [componentId] The id to assign to the Component, if specified will overwrite existing id,
     *                  if none is specified an id will be automatically generated and assigned.
     * @returns {jibo.face.views.Component} The given Component.
     */

    /**
     * Get index of Component within the ComponentGroup's component list.
     * @method jibo.face.views.ComponentGroup#getIndexOfComponent
     * @param {jibo.face.views.Component} component - Component to check for index.
     * @returns {number} Index of the Component in the component list
     */

    /**
     * Remove ComponentGroup's reference to a Component.
     * This does not destroy the Component or remove its assets from the manifest.
     * It only removes it from the ComponentGroup array and hash that reference it.
     * @method jibo.face.views.ComponentGroup#removeComponent
     * @param {jibo.face.views.Component|Number|String} componentDeterminer Provide Component, index of component, or id of component to remove.
     * @returns {jibo.face.views.Component} The Component being removed.
     */

    /**
     * Retrieve a child Component by its id.
     * @method jibo.face.views.ComponentGroup#getComponentById
     * @param {String} componentId The ID of the component to retrieve.
     * @returns {jibo.face.views.Component} The retrieved component.
     */

    /**
     * Retrieve a child Component by its index.
     * @method jibo.face.views.ComponentGroup#getComponentByIndex
     * @param {number} index The index of the component to retrieve.
     * @returns {jibo.face.views.Component} The retrieved component.
     */

    /**
     * Returns first component found in Component tree that returns `true` for given test.
     * Iterates downward, breadth-first search, starting from this ComponentGroup.
     * @method jibo.face.views.ComponentGroup#findComponent
     * @param {Function} testFunction - Function must take a Component parameter and return a boolean,
     * passing an additional Object to test against is optional.
     * @param {any} [against] - Object to test against.
     * @return {jibo.face.views.Component} First Component found that the testFunction return `true` for.
     */

    /**
     * FOR OVERRIDE ONLY. DO NOT CALL.
     *
     * Frame enter loop update.
     * Calls update method of any child that has registered for updates.
     * @method jibo.face.views.ComponentGroup#update
     * @param {number} elapsed Time in milliseconds since the last frame update.
     */

    /**
     * Register for the given component's update method to be called.
     * @method jibo.face.views.ComponentGroup#registerComponentUpdate
     * @param {jibo.face.views.Component} component The component to update.
     */

    /**
     * Stop the given component's update method from getting called.
     * @method jibo.face.views.ComponentGroup#unregisterComponentUpdate
     * @param {jibo.face.views.Component} component The Component to stop providing updates to.
     */

    /**
     * FOR OVERRIDE ONLY. DO NOT CALL.
     *
     * Create this Component's display as well as calling createDisplay on all child Components.
     * This method should should 'visualize' the component, creating DisplayObjects and adding them the container.
     * @method jibo.face.views.ComponentGroup#createDisplay
     * @param {PIXI.Container} container Is ultimately a child of the stage.
     * @param {any} assets Object passed back from loader namespace load method,
     *        refer to loader namespace within jibo for details.
     */

    /**
     * Called by parent ComponentGroup once parent has finished its loading and setup,
     * calls ready on all child Components.
     * Allows opportunity to do additional setup that may depend on other components.
     *
     * ATTENTION: This should not be called directly; the top level [View]{@link jibo.face.views.View}
     * will call this, which will recurse through Component tree.
     * @method jibo.face.views.ComponentGroup#ready
     */

    /**
     * FOR OVERRIDE ONLY. DO NOT CALL.
     *
     * Method for `open` transition.
     * Iterates through components and calls their open method.
     * Method is responsible for calling the callback in all situations.
     *
     * ATTENTION : This should not be called directly; {@link jibo.face.views}
     * will manage when Components should open during the view process.
     * @method jibo.face.views.ComponentGroup#open
     * @param {Function} callback Function to be called once open is complete.
     * @param {String} transitionType String used to determine way Component opens,
     *        refer to ViewManager for constants used
     * @param {number} [duration = ViewManager.TRANS_TIME] Duration of the transition.
     */

    /**
     * FOR OVERRIDE ONLY. DO NOT CALL.
     *
     * Method for `close` transition.
     * Iterates through components and calls their close method.
     * Method is responsible for calling the callback in all situations.
     *
     * ATTENTION : This should not be called directly; {@link jibo.face.views}
     * will manage when Components should close during the view process.
     * @method jibo.face.views.ComponentGroup#close
     * @param {Function} callback Function to be called once close is complete.
     * @param {String} [transitionType] String used to determine way Component closes,
     *        refer to ViewManager for constants used.
     * @param {number} [duration = ViewManager.TRANS_TIME] Duration of the transition.
     */

    /**
     * Call open method on all component children.
     * Iterates through components and calls their open method, passing given transitionType.
     * Method is responsible for calling the callback in all situations.
     * @method jibo.face.views.ComponentGroup#openChildren
     * @param {Function} callback Function called once all component children have completed their open.
     * @param {String} transitionType Transition type passed to all component children.
     * @param {number} [duration = ViewManager.TRANS_TIME] Duration of the transition.
     * @protected
     */

    /**
     * Call close method on all component children.
     * Iterates through components and calls their close method.
     * Method is responsible for calling the callback in all situations.
     * @method jibo.face.views.ComponentGroup#closeChildren
     * @param {Function} callback Function called once all component children have completed their close.
     * @param {String} transitionType Transition type passed to all component children.
     * @param {number} [duration = ViewManager.TRANS_TIME] Duration of the transition.
     * @protected
     */

    /**
     * Method to bubble actions up from Components.
     * Actions pass through this method up to next ComponentGroup parent, ultimately reaching the ViewManager.
     * Passing action up through parents allows each to augment or block the action if desired.
     * @method jibo.face.views.ComponentGroup#actionHandler
     * @param {jibo.face.views.ActionData} action Contains string for type of action and data Object
     *                                      with any pertinent data dependent on action type.
     * @param {jibo.face.views.Component} [fromComponent] The component that triggered the action (if applicable).
     */

    /**
     * Method to pass actions downward to Components.
     * Passing actions through parent chain allows parents to interrupt and augment actions.
     * @method jibo.face.views.ComponentGroup#actionEnactor
     * @param {jibo.face.views.ActionData} action Contains string for type of action and data Object
     *                                      with any pertinent data dependent on action type.
     * @return {boolean} `true` if action is acted on by this ComponentGroup or any of its ComponentGroup children.
     */

    /**
     * Handler for when transitions are all complete.
     * @method jibo.face.views.ComponentGroup#transitionComplete
     * @param {Function} callback The callback triggered once all components have completed their transitions.
     * @param {Error} [err] Error returns if there is an issue with the asynchronous method.
     * @param {any[]} [results] Results returned from asynchronous method, will be empty.
     * @private
     */