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<?php
/**
* File containing the ezcConsoleDialog interface.
*
* @package ConsoleTools
* @version 1.6.1
* @copyright Copyright (C) 2005-2010 eZ Systems AS. All rights reserved.
* @license http://ez.no/licenses/new_bsd New BSD License
*/
/**
* Interface that every console dialog class must implement.
*
* Console dialogs can either be used on their own or using the
* {@link ezcConsoleDialogViewer} (recommended). In the dialog viewer, a dialog
* is instanciated and displayed in a loop, until it receives a valid result
* value.
*
* @package ConsoleTools
* @version 1.6.1
*/
interface ezcConsoleDialog
{
/**
* Create a new dialog object.
* This method retrieves an ezcConsoleOutput object for printing its
* content. Additionally an instance of ezcConsoleDialogOptions or a derived
* class is received to configure the behaviour of the dialog. Dialog
* implementations may extend ezcConsoleDialogOptions and require an
* instance of their extended class as options.
*
* @param ezcConsoleOutput $output Output object.
* @param ezcConsoleDialogOptions $options Options.
* @return void
*/
// public function __construct( ezcConsoleOutput $output, ezcConsoleDialogOptions $options = null );
/**
* Returns if the dialog retrieved a valid result.
* Typically a dialog is displayed in a loop until he received a valid
* result. What a valid result is, is determined by the dialog itself.
*
* @return bool If a valid result was retrieved.
*/
public function hasValidResult();
/**
* Returns the result retrieved.
* If no valid result was retreived, yet, this method should throw an
* {@link ezcDialogNoValidResultException}. Otherwise this method returns
* the result.
*
* @return mixed The retreived result.
*
* @throws ezcDialogNoValidResultException
* if this method is called without a valid result being retrieved
* by the object. Use {@link hasValidResult()} to avoid this
* exception.
*/
public function getResult();
/**
* Displays the dialog.
* Displays the dialog. Dialogs will most propably block the application until
* the user took some interaction.
*
* @return void
*/
public function display();
/**
* Resets the dialog to its initial state.
* Resets the dialog to its orginal state in respect to its internal
* changes. Note: Any changes you made to the options are kept in tact.
*
* @return void
*/
public function reset();
}
?>