/*
* Created on 11-Nov-2006
* Created by Allan Crooks
* Copyright (C) 2005, 2006 Aelitis, All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* AELITIS, SAS au capital de 46,603.30 euros
* 8 Allee Lenotre, La Grille Royale, 78600 Le Mesnil le Roi, France.
*/
package org.gudy.azureus2.plugins.ui;
/**
* This interface provides a mechanism to get some textual input from a user.
*
* <p>
*
* There are various methods which allow you to customise the appearance of
* the prompt that the user receives - subclasses may provide additional
* methods to customise the interface too.
*
* <p>
*
* Once the object has been set up, you then call the {@link #prompt}method. This
* will ask the user for some input based on the values previously given.
* It will only return once the user has either given some validated input,
* or has indicated they don't want to give any input (like pressing a
* Cancel button).
*
* <p>
*
* The {@link #hasSubmittedText()} and {@link #getSubmittedText()} methods can then
* be invoked to retrieve the input (if the user has submitted any).
*
* <p>
*
* There are various methods which have a <tt>setXXX</tt> and <tt>setLocalisedXXX</tt>
* counterparts. The <tt>setXXX</tt> methods will attempt to translate the given
* string to a localised representation of it - the <tt>setLocalisedXXX</tt> method
* will assume that the localisation has already been done, and leave it intact.
*/
public interface UIInputReceiver {
/**
* Sets the title for the text entry input. For some interfaces, this
* means that a window will be presented, and the title of the window
* will be the value passed here.
*/
public void setTitle(String title);
/**
* Sets the title for the text entry input. For some interfaces, this
* means that a window will be presented, and the title of the window
* will be the value passed here.
*/
public void setLocalisedTitle(String title);
/**
* Sets the message to display for the text entry input. This will
* normally be displayed near the position where the text will be
* entered - this method is usually used to present the user with
* an indication of what to enter.
*
* <p>
*
* For multiple lines, see {@link #setMessages}.
*/
public void setMessage(String message);
/**
* Sets the message to display for the text entry input. This will
* normally be displayed near the position where the text will be
* entered - this method is usually used to present the user with
* an indication of what to enter.
*
* <p>
*
* For multiple lines, see {@link #setLocalisedMessages}.
*/
public void setLocalisedMessage(String message);
/**
* Sets the message to display for the text entry input. This will
* normally be displayed near the position where the text will be
* entered - this method is usually used to present the user with
* an indication of what to enter.
*
* <p>
*
* The value passed here will be an array of strings - each string
* will be usually outputted on its own line. The last value in
* the array will usually be the message displayed closest to the
* users prompt.
*/
public void setMessages(String[] messages);
/**
* Sets the message to display for the text entry input. This will
* normally be displayed near the position where the text will be
* entered - this method is usually used to present the user with
* an indication of what to enter.
*
* <p>
*
* The value passed here will be an array of strings - each string
* will be usually outputted on its own line. The last value in
* the array will usually be the message displayed closest to the
* users prompt.
*/
public void setLocalisedMessages(String[] messages);
/**
* This sets a value to be displayed as pre-entered text for the
* input. This may be called if the caller wants to suggest a
* value for the user to use, or if the caller wants to provide
* a previous value (for example).
*
* <p>
*
* The text may appear in the same location as the text should
* be entered (allowing it to be directly overwritten or submitted
* immediately) - but some interfaces may not support this.
*
* <p>
*
* A flag should be passed indicating whether the pre-entered text
* is being entered as a suggestion for a value, or whether it is
* an old value being currently stored. Some interfaces may choose
* to differentiate between the two.
*
* @param text The text to pre-enter.
* @param as_suggested <tt>true</tt> if the value is a suggested
* input value, <tt>false</tt> if it is an old value.
*/
public void setPreenteredText(String text, boolean as_suggested);
/**
* Indicates whether to allow multi-line input.
* Default behaviour is to not allow multiple lines.
*/
public void setMultiLine(boolean multiline);
/**
* Indicates whether to keep whitespace are kept when input is entered,
* or whether to strip it out. Default behaviour is to strip whitespace.
*/
public void maintainWhitespace(boolean keep_whitespace);
/**
* Indicates whether blank input can be entered.
*/
public void allowEmptyInput(boolean empty_input);
/**
* Sets the UIInputValidator for this object. This allows an external
* object to validate or reject input submitted by the user.
*
* <p>
*
* By default, there is no input validator associated with a
* UIInputReceiver, meaning all input is allowed.
*
* @see UIInputValidator
*/
public void setInputValidator(UIInputValidator validator);
/**
* This prompts the user for input. This method will not return until
* the user has either entered valid input, or signalled they want to
* cancel entering any data.
*/
public void prompt();
/**
* Returns <tt>true</tt> if the user submitted any data.
*/
public boolean hasSubmittedInput();
/**
* Returns the string if the user submitted any data - you should check
* for this by calling {@link #hasSubmittedInput()} first.
*/
public String getSubmittedInput();
}
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