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The JavaFX implementation of the Interacto library
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/*
* Interacto
* Copyright (C) 2020 Arnaud Blouin
* 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 3 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, see .
*/
package io.github.interacto.jfx.interaction.library;
import io.github.interacto.fsm.TerminalState;
import io.github.interacto.jfx.interaction.FSMDataHandler;
import io.github.interacto.jfx.interaction.JfxFSM;
import io.github.interacto.jfx.interaction.KeyPressureTransition;
import javafx.event.Event;
import javafx.scene.input.KeyEvent;
/**
* An FSM for a single key pressure.
*/
public class KeyPressedFSM extends JfxFSM {
private final boolean modifiersAccepted;
/**
* Creates the FSM.
* @param modifiersAccepted True: the FSM will consider key modifiers.
*/
public KeyPressedFSM(final boolean modifiersAccepted) {
super();
this.modifiersAccepted = modifiersAccepted;
}
@Override
protected void buildFSM(final KeyPressedFSMHandler dataHandler) {
if(states.size() > 1) {
return;
}
super.buildFSM(dataHandler);
final TerminalState pressed = new TerminalState<>(this, "pressed");
addState(pressed);
new KeyPressureTransition(initState, pressed) {
@Override
protected void action(final KeyEvent event) {
if(dataHandler != null) {
dataHandler.onKeyPressure(event);
}
}
@Override
protected boolean isGuardOK(final KeyEvent event) {
return modifiersAccepted || (!event.getCode().isModifierKey() &&
!event.getCode().isFunctionKey() && !event.getCode().isMediaKey());
}
};
}
@Override
public void reinit() {
super.reinit();
if(eventsToProcess != null) {
eventsToProcess.clear();
}
}
interface KeyPressedFSMHandler extends FSMDataHandler {
void onKeyPressure(final KeyEvent event);
}
}