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37 lines
1.2 KiB
37 lines
1.2 KiB
package app.navigation.player.components.button;
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import app.data.entity.Player;
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import app.navigation.player.PlayerNavigation;
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import com.vaadin.flow.component.button.Button;
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import com.vaadin.flow.component.icon.VaadinIcon;
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import java.util.List;
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import java.util.Optional;
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public class PrevPlayerButton extends Button {
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private final PlayerNavigation playerNavigation;
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public PrevPlayerButton(PlayerNavigation playerNavigation) {
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this.playerNavigation = playerNavigation;
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setIcon(VaadinIcon.ARROW_LEFT.create());
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playerNavigation.addRunnableToBeRunAfterSelection(this::configure);
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}
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private void configure() {
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Optional<Player> prevPlayer = getPrevPlayer();
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setEnabled(prevPlayer.isPresent());
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addClickListener(event -> prevPlayer.ifPresent(player -> playerNavigation.getPlayerSelect().setValue(player)));
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}
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private Optional<Player> getPrevPlayer() {
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int index = PlayerButtonUtils.getPlayerIndex(playerNavigation);
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if (index < 0) return Optional.empty();
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List<Player> playerList = playerNavigation.getPlayerList();
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return Optional.ofNullable(playerList.get((index - 1) % playerList.size()));
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}
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}
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