com.goldencode.p2j.ui.client.chui.driver

Class AbstractChildProcess

java.lang.Object

com.goldencode.p2j.ui.client.chui.driver.AbstractChildProcess

All Implemented Interfaces:

InteractiveChildProcess

Direct Known Subclasses:

NativeChildProcess, VT100EmulatorChildProcess

public abstract class AbstractChildProcess
extends java.lang.Object
implements InteractiveChildProcess

Provides a common implementation for an interactive child process which is independent from any specific UI modality.

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	artificial Artificial terminal flag (true if the client has no native terminal).
protected boolean	batch Batch mode flag.
protected ThinClient	terminal Core client helpers.

Constructor Summary

Constructors

Constructor and Description
AbstractChildProcess(ThinClient terminal, boolean batch, boolean artificial) Construct an instance.

Method Summary

Modifier and Type	Method and Description
boolean	inBatchMode() Reports if the client is in batch mode.
boolean	isArtificialTerm() Reports if the client is missing an already initialized native terminal session.
int	pauseForUser() Wait for the user to press a key.
void	resume(boolean silent) Re-enables client UI processing (key reading, normal drawing mode).
void	suspend(boolean silent) Temporarily halts the client UI processing (key reading, normal drawing mode) After entering suspend mode, the current contents of the terminal are cleared.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.goldencode.p2j.util.InteractiveChildProcess

asynchCleanup, launch, waitForExit

Field Detail

terminal

protected ThinClient terminal

Core client helpers.

batch

protected boolean batch

Batch mode flag.

artificial

protected boolean artificial

Artificial terminal flag (true if the client has no native terminal).

Constructor Detail

AbstractChildProcess

public AbstractChildProcess(ThinClient terminal,
                            boolean batch,
                            boolean artificial)

Construct an instance.

Parameters:

terminal - Core client helpers.

batch - Batch mode flag.

artificial - Artificial terminal flag (true if the client has no native terminal).

Method Detail

inBatchMode

public boolean inBatchMode()

Reports if the client is in batch mode.

Specified by:

inBatchMode in interface InteractiveChildProcess

Returns:

true if in batch mode.

isArtificialTerm

public boolean isArtificialTerm()

Reports if the client is missing an already initialized native terminal session.

Specified by:

isArtificialTerm in interface InteractiveChildProcess

Returns:

true if this is an artificial terminal (there is no native terminal).

pauseForUser

public int pauseForUser()

Wait for the user to press a key.

Specified by:

pauseForUser in interface InteractiveChildProcess

Returns:

The key code of the key pressed to clear the pause or -1 on any failure.

suspend

public void suspend(boolean silent)

Temporarily halts the client UI processing (key reading, normal drawing mode) After entering suspend mode, the current contents of the terminal are cleared. Use resume(boolean) to return to normal mode.

Specified by:

suspend in interface InteractiveChildProcess

Parameters:

silent - silent mode flag value that can change driver reaction for some suspend/resume.

resume

public void resume(boolean silent)

Re-enables client UI processing (key reading, normal drawing mode). Before resuming the current contents of the terminal are cleared. This is the mechanism to return to normal processing mode after having called suspend(boolean).

Specified by:

resume in interface InteractiveChildProcess

Parameters:

silent - silent mode flag value that can change driver reaction for some suspend/resume.