/*
 *  MessageDetailsScreen.java
 *
 *  Author: C. Enrique Ortiz, October 2003
 *
 *  Companion source code to "Advanced Messaging Coding with JSR 120".
 *
 *  Based on original work by C. Enrique Ortiz.
 *
 *  COPYRIGHT All rights reserved Sony Ericsson Mobile Communications AB 2003.
 *  The software is the copyrighted work of Sony Ericsson Mobile Communications AB.
 *  The use of the software is subject to the terms of the end-user license
 *  agreement which accompanies or is included with the software. The software is
 *  provided "as is" and Sony Ericsson specifically disclaim any warranty or
 *  condition whatsoever regarding merchantability or fitness for a specific
 *  purpose, title or non-infringement. No warranty of any kind is made in
 *  relation to the condition, suitability, availability, accuracy, reliability,
 *  merchantability and/or non-infringement of the software provided herein.
 */

package wmafw;

import javax.microedition.lcdui.*;

/**
 * MessageDetailsScreen displays the details for a given short text message.
 */
class MessageDetailsScreen
{
    /************/
    /* Commands */
    /************/
    /** Reply Command */
    protected static Command REPLY= new Command(UIConstants.TXT_REPLY, Command.OK, 1);
    /** Back Command */
    protected static Command BACK = new Command(UIConstants.TXT_BACK, Command.BACK, 2);

    /******/
    /* UI */
    /******/
    /** Current display context */
    private Display display;
    /** The command listener responsible of application navigation */
    private CommandListener commandListener;
    /** The menu screen */
    private Form screen;
    /** From field value*/
    private String from;

    /**
     * Constructor.
     */
    protected MessageDetailsScreen(Display d, CommandListener cl) {
        display = d;
        commandListener = cl;
        screen = new Form(UIConstants.TXT_SMS_SUMM);
        screen.addCommand(REPLY);
        screen.addCommand(BACK);
        screen.setCommandListener(commandListener);
    }

    /**
     * Make the main menu visible.
     * @param from is the message's sender
     * @param message is the text message contents.
     */
    protected void showScreen(String from, String message) {
        try {
            this.from = from;
            if (display != null) {
                //  Clear the screen before adding new entries.
                for(int i=screen.size()-1; i>=0; i--) screen.delete(i);
                //  Append the From and Message.
                screen.append(UIConstants.TXT_FROM + from);
                screen.append(UIConstants.TXT_MESSAGE + message);
                //  Display the screen.
                display.setCurrent(screen);
            }
        } catch (Exception e) {
            System.out.println("showException Exception: " + e);
        }
    }

    /**
     * Returns the from field.
     * @return the message from field.
     */
    protected String getFrom() {
        return from;
    }

    /**
     * Returns the main menu Displayable.
     * @return the message details screen.
     */
    protected Displayable getScreen() {
        return screen;
    }
}