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package dev.isxander.yacl.api;
import com.google.common.collect.ImmutableSet;
import dev.isxander.yacl.impl.OptionImpl;
import net.minecraft.network.chat.Component;
import org.jetbrains.annotations.NotNull;
import java.util.*;
import java.util.function.BiConsumer;
import java.util.function.Consumer;
import java.util.function.Function;
import java.util.function.Supplier;
public interface Option<T> {
/**
* Name of the option
*/
@NotNull Component name();
/**
* Tooltip (or description) of the option.
* Rendered on hover.
*/
@NotNull Component tooltip();
/**
* Widget provider for a type of option.
*
* @see dev.isxander.yacl.gui.controllers
*/
@NotNull Controller<T> controller();
/**
* Binding for the option.
* Controls setting, getting and default value.
*
* @see Binding
*/
@NotNull Binding<T> binding();
/**
* If the option can be configured
*/
boolean available();
/**
* Sets if the option can be configured after being built
*
* @see Option#available()
*/
void setAvailable(boolean available);
/**
* Class of the option type.
* Used by some controllers.
*/
@NotNull Class<T> typeClass();
/**
* Tasks that needs to be executed upon applying changes.
*/
@NotNull ImmutableSet<OptionFlag> flags();
/**
* Checks if the pending value is not equal to the current set value
*/
boolean changed();
/**
* Value in the GUI, ready to set the actual bound value or be undone.
*/
@NotNull T pendingValue();
/**
* Sets the pending value
*/
void requestSet(T value);
/**
* Applies the pending value to the bound value.
* Cannot be undone.
*
* @return if there were changes to apply {@link Option#changed()}
*/
boolean applyValue();
/**
* Sets the pending value to the bound value.
*/
void forgetPendingValue();
/**
* Sets the pending value to the default bound value.
*/
void requestSetDefault();
/**
* Checks if the current pending value is equal to its default value
*/
boolean isPendingValueDefault();
default boolean canResetToDefault() {
return true;
}
/**
* Adds a listener for when the pending value changes
*/
void addListener(BiConsumer<Option<T>, T> changedListener);
/**
* Creates a builder to construct an {@link Option}
*
* @param <T> type of the option's value
* @param typeClass used to capture the type
*/
static <T> Builder<T> createBuilder(Class<T> typeClass) {
return new OptionImpl.BuilderImpl<>(typeClass);
}
interface Builder<T> {
/**
* Sets the name to be used by the option.
*
* @see Option#name()
*/
Builder<T> name(@NotNull Component name);
/**
* Sets the tooltip to be used by the option.
* No need to wrap the text yourself, the gui does this itself.
*
* @param tooltipGetter function to get tooltip depending on value {@link Builder#build()}.
*/
@SuppressWarnings("unchecked")
Builder<T> tooltip(@NotNull Function<T, Component>... tooltipGetter);
/**
* Sets the tooltip to be used by the option.
* Can be invoked twice to append more lines.
* No need to wrap the text yourself, the gui does this itself.
*
* @param tooltips text lines - merged with a new-line on {@link Builder#build()}.
*/
Builder<T> tooltip(@NotNull Component... tooltips);
/**
* Sets the controller for the option.
* This is how you interact and change the options.
*
* @see dev.isxander.yacl.gui.controllers
*/
Builder<T> controller(@NotNull Function<Option<T>, Controller<T>> control);
/**
* Sets the binding for the option.
* Used for default, getter and setter.
*
* @see Binding
*/
Builder<T> binding(@NotNull Binding<T> binding);
/**
* Sets the binding for the option.
* Shorthand of {@link Binding#generic(Object, Supplier, Consumer)}
*
* @param def default value of the option, used to reset
* @param getter should return the current value of the option
* @param setter should set the option to the supplied value
* @see Binding
*/
Builder<T> binding(@NotNull T def, @NotNull Supplier<@NotNull T> getter, @NotNull Consumer<@NotNull T> setter);
/**
* Sets if the option can be configured
*
* @see Option#available()
*/
Builder<T> available(boolean available);
/**
* Adds a flag to the option.
* Upon applying changes, all flags are executed.
* {@link Option#flags()}
*/
Builder<T> flag(@NotNull OptionFlag... flag);
/**
* Adds a flag to the option.
* Upon applying changes, all flags are executed.
* {@link Option#flags()}
*/
Builder<T> flags(@NotNull Collection<OptionFlag> flags);
/**
* Instantly invokes the binder's setter when modified in the GUI.
* Prevents the user from undoing the change
* <p>
* Does not support {@link Option#flags()}!
*/
Builder<T> instant(boolean instant);
/**
* Adds a listener to the option. Invoked upon changing the pending value.
*
* @see Option#addListener(BiConsumer)
*/
Builder<T> listener(@NotNull BiConsumer<Option<T>, T> listener);
/**
* Adds multiple listeners to the option. Invoked upon changing the pending value.
*
* @see Option#addListener(BiConsumer)
*/
Builder<T> listeners(@NotNull Collection<BiConsumer<Option<T>, T>> listeners);
Option<T> build();
}
}
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