/*

* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

*

*/

package com.nokia.mj.impl.javacontrolpanel;

import com.nokia.mj.impl.rt.support.Jvm;

import org.eclipse.swt.layout.*;

import org.eclipse.ercp.swt.mobile.*;

import org.eclipse.swt.SWT;

import org.eclipse.swt.events.*;

import org.eclipse.swt.widgets.*;

import org.eclipse.swt.graphics.*;

import com.nokia.mj.impl.utils.Logger;

class JavaControlPanelUi

{

    private JavaCaptain iCaptain;

    private Redirector iRedirector;

    private SecurityConfig iSecurity;

    private Shell iShell;

    private Button iJavaCaptain;

    private Button iPrewarm;

    private Button iThreadDump;

    private Button iJavaDebug;

    private Button iRedirect;

    private Combo iSecurityWarnings;

    private Combo iSecurityPolicy;

    static

    {

        Jvm.loadSystemLibrary("javacontrolpanel");

    }

    public JavaControlPanelUi()

    {

        iCaptain = new JavaCaptain();

        iRedirector = new Redirector();

        iSecurity = new SecurityConfig();

    }

    public void show()

    {

        Display display = new Display();

        iShell = new Shell(display);

        createUi();

        iShell.pack();

        iShell.open();

        handleOrientationChange();

        while (!iShell.isDisposed())

        {

            if (!display.readAndDispatch())

            {

                display.sleep();

            }

        }

        display.dispose();

    }

    private void exitEventLoop()

    {

        iRedirector.stop();

        iShell.dispose();

    }

    private void createUi()

    {

        try

        {

            setLayout();

            createJavaCaptainUi();

            createPrewarmUi();

            createThreadDumpUi();

            createJavaDebugUi();

            createSecurityWarningsUi();

            createSecurityPolicyUi();

            createRedirectLogsUi();

            createCommands();

            platformAdaptation();

        }

        catch (Throwable e)

        {

            Logger.ELOG(Logger.EUtils, "createUi failed", e);

            exitEventLoop();

        }

    }

    private void setLayout()

    {

        iShell.setText("Java Control Panel");

        iShell.setLayout(new GridLayout(2, false));

    }

    private void createJavaCaptainUi()

    {

        Label label = new Label(iShell, SWT.NONE);

        label.setText("Java Captain");

        label.setLayoutData(new GridData(SWT.CENTER));

        iJavaCaptain = new Button(iShell, SWT.TOGGLE);

        iJavaCaptain.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

        iJavaCaptain.addSelectionListener(new SelectionListener()

        {

            public void widgetDefaultSelected(SelectionEvent aEvent)

            {

                widgetSelected(aEvent);

            }

            public void widgetSelected(SelectionEvent event)

            {

                javaCaptainPressed();

            }

        });

        toggleJavaCaptain(iCaptain.isRunning());

    }

    private void createPrewarmUi()

    {

        Label label = new Label(iShell, SWT.NONE);

        label.setText("Prewarm");

        label.setLayoutData(new GridData(SWT.CENTER));

        iPrewarm = new Button(iShell, SWT.TOGGLE);

        iPrewarm.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

        iPrewarm.addSelectionListener(new SelectionListener()

        {

            public void widgetDefaultSelected(SelectionEvent aEvent)

            {

                widgetSelected(aEvent);

            }

            public void widgetSelected(SelectionEvent event)

            {

                prewarmPressed();

            }

        });

        togglePrewarm(iCaptain.isPrewarmEnabled());

    }

    private void createThreadDumpUi()

    {

        Label label = new Label(iShell, SWT.NONE);

        label.setText("Thread Dump");

        label.setLayoutData(new GridData(SWT.CENTER));

        iThreadDump = new Button(iShell, SWT.PUSH);

        iThreadDump.setText("Dump");

        iThreadDump.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

        iThreadDump.addSelectionListener(new SelectionListener()

        {

            public void widgetDefaultSelected(SelectionEvent aEvent)

            {

                widgetSelected(aEvent);

            }

            public void widgetSelected(SelectionEvent event)

            {

                threadDumpPressed();

            }

        });

    }

    private void createJavaDebugUi()

    {

        Label label = new Label(iShell, SWT.NONE);

        label.setText("Java Debug");

        label.setLayoutData(new GridData(SWT.CENTER));

        iJavaDebug = new Button(iShell, SWT.TOGGLE);

        iJavaDebug.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

        iJavaDebug.addSelectionListener(new SelectionListener()

        {

            public void widgetDefaultSelected(SelectionEvent aEvent)

            {

                widgetSelected(aEvent);

            }

            public void widgetSelected(SelectionEvent event)

            {

                javaDebugPressed();

            }

        });

        toggleJavaDebug(iCaptain.isDebugEnabled());

    }

    private void createSecurityWarningsUi()

    {

        Label label = new Label(iShell, SWT.NONE);

        label.setText("Security Warnings");

        label.setLayoutData(new GridData(SWT.CENTER));

        iSecurityWarnings = new Combo(iShell, SWT.DROP_DOWN | SWT.READ_ONLY);

        for(int i = 0; i < SecurityConfig.MODES.length; i++)

        {

            iSecurityWarnings.add(SecurityConfig.MODES[i]);

        }

        iSecurityWarnings.select(iSecurity.getWarningsMode());

        iSecurityWarnings.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

        iSecurityWarnings.addSelectionListener(new SelectionListener()

        {

            public void widgetDefaultSelected(SelectionEvent aEvent)

            {

                widgetSelected(aEvent);

            }

            public void widgetSelected(SelectionEvent event)

            {

                securityWarningsSelected();

            }

        });

    }

    private void createSecurityPolicyUi()

    {

        Label label = new Label(iShell, SWT.NONE);

        label.setText("Security Policy");

        label.setLayoutData(new GridData(SWT.CENTER));

        iSecurityPolicy = new Combo(iShell, SWT.DROP_DOWN | SWT.READ_ONLY);

        for(int i = 0; i < SecurityConfig.POLICIES.length; i++)

        {

            iSecurityPolicy.add(SecurityConfig.POLICIES[i]);

        }

        iSecurityPolicy.select(iSecurity.getSecurityPolicy());

        iSecurityPolicy.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

        iSecurityPolicy.addSelectionListener(new SelectionListener()

        {

            public void widgetDefaultSelected(SelectionEvent aEvent)

            {

                widgetSelected(aEvent);

            }

            public void widgetSelected(SelectionEvent event)

            {

                securityPolicySelected();

            }

        });

    }

    private void createRedirectLogsUi()

    {

        Label label = new Label(iShell, SWT.NONE);

        label.setText("Redirect Logs");

        label.setLayoutData(new GridData(SWT.CENTER));

        iRedirect = new Button(iShell, SWT.TOGGLE);

        iRedirect.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

        iRedirect.addSelectionListener(new SelectionListener()

        {

            public void widgetDefaultSelected(SelectionEvent aEvent)

            {

                widgetSelected(aEvent);

            }

            public void widgetSelected(SelectionEvent event)

            {

                redirectPressed();

            }

        });

        toggleRedirect(iRedirector.isRedirecting());

    }

    private void createCommands()

    {

        Command exit = new Command(iShell, Command.EXIT, 0);

        exit.setText("Exit");

        exit.addSelectionListener(new SelectionListener()

        {

            public void widgetDefaultSelected(SelectionEvent aEvent)

            {

                widgetSelected(aEvent);

            }

            public void widgetSelected(SelectionEvent aEvent)

            {

                exitEventLoop();

            }

        });

    }

    private void platformAdaptation()

    {

        if (isLinux())

        {

            configureUi();

        }

    }

    private void configureUi()

    {

        // add second dummy command so that menu bar is visible

        new Command(iShell, Command.GENERAL, 0).setText("");

        // disable not supported services

        iRedirect.setEnabled(false);

        iSecurityPolicy.setEnabled(false);

        iSecurityWarnings.setEnabled(false);

    }

    private void handleOrientationChange()

    {

        iShell.addControlListener(new ControlListener()

        {

            private boolean handleEvent = false;

            public void controlMoved(ControlEvent e)

            {

            }

            public void controlResized(ControlEvent e)

            {

                // ignore first event that comes during startup

                if (handleEvent)

                {

                    // avoid flickering during orientation change

                    iShell.setVisible(false);

                    iShell.layout();

                    iShell.setVisible(true);

                }

                handleEvent = true;

            }

        });

    }

    private void javaCaptainPressed()

    {

        if (iJavaCaptain.getSelection())

        {

            iCaptain.start();

            javaCaptainStarted();

        }

        else

        {

            iCaptain.stop();

        }

        toggleJavaCaptain(iJavaCaptain.getSelection());

    }

    private void toggleJavaCaptain(boolean aSelected)

    {

        iJavaCaptain.setText( aSelected ? "Running" : "Stopped");

        iJavaCaptain.setSelection(aSelected);

    }

    private void prewarmPressed()

    {

        iCaptain.enablePrewarm(iPrewarm.getSelection());

        togglePrewarm(iPrewarm.getSelection());

    }

    private void togglePrewarm(boolean aSelected)

    {

        iPrewarm.setText( aSelected ? "Enabled" : "Disabled");

        iPrewarm.setSelection(aSelected);

    }

    private void threadDumpPressed()

    {

        iCaptain.doThreadDump();

    }

    private void javaDebugPressed()

    {

        iCaptain.enableDebug(iJavaDebug.getSelection());

        toggleJavaDebug(iJavaDebug.getSelection());

    }

    private void toggleJavaDebug(boolean aSelected)

    {

        iJavaDebug.setText( aSelected ? "Enabled" : "Disabled");

        iJavaDebug.setSelection(aSelected);

    }

    private void securityWarningsSelected()

    {

        iSecurity.setWarningsMode(iSecurityWarnings.getSelectionIndex());

    }

    private void securityPolicySelected()

    {

        iSecurity.setSecurityPolicy(iSecurityPolicy.getSelectionIndex());

    }

    private void redirectPressed()

    {

        if (iRedirect.getSelection())

        {

            iRedirector.start();

        }

        else

        {

            iRedirector.stop();

        }

        toggleRedirect(iRedirect.getSelection());

    }

    private void toggleRedirect(boolean aSelected)

    {

        iRedirect.setText( aSelected ? "Yes" : "No");

        iRedirect.setSelection(aSelected);

    }

    private void javaCaptainStarted()

    {

        // some JavaCaptain services return to default settings

        // when JC is restarted so refresh states

        togglePrewarm(iCaptain.isPrewarmEnabled());

        toggleJavaDebug(iCaptain.isDebugEnabled());

    }

    private boolean isLinux()

    {

        String platform = System.getProperty("os.name");

        if (platform != null && platform.equalsIgnoreCase("linux"))

        {

            return true;

        }

        return false;

    }

}