minecraft-src/net/minecraft/client/gui/components/toasts/SystemToast.java

package net.minecraft.client.gui.components.toasts;

import com.google.common.collect.ImmutableList;
import java.util.List;
import net.fabricmc.api.EnvType;
import net.fabricmc.api.Environment;
import net.minecraft.ChatFormatting;
import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.Font;
import net.minecraft.client.gui.GuiGraphics;
import net.minecraft.client.renderer.RenderType;
import net.minecraft.network.chat.Component;
import net.minecraft.resources.ResourceLocation;
import net.minecraft.util.FormattedCharSequence;
import net.minecraft.world.level.ChunkPos;
import org.jetbrains.annotations.Nullable;

@Environment(EnvType.CLIENT)
public class SystemToast implements Toast {
	private static final ResourceLocation BACKGROUND_SPRITE = ResourceLocation.withDefaultNamespace("toast/system");
	private static final int MAX_LINE_SIZE = 200;
	private static final int LINE_SPACING = 12;
	private static final int MARGIN = 10;
	private final SystemToast.SystemToastId id;
	private Component title;
	private List<FormattedCharSequence> messageLines;
	private long lastChanged;
	private boolean changed;
	private final int width;
	private boolean forceHide;
	private Toast.Visibility wantedVisibility = Toast.Visibility.HIDE;

	public SystemToast(SystemToast.SystemToastId id, Component title, @Nullable Component message) {
		this(
			id,
			title,
			nullToEmpty(message),
			Math.max(160, 30 + Math.max(Minecraft.getInstance().font.width(title), message == null ? 0 : Minecraft.getInstance().font.width(message)))
		);
	}

	public static SystemToast multiline(Minecraft minecraft, SystemToast.SystemToastId id, Component title, Component message) {
		Font font = minecraft.font;
		List<FormattedCharSequence> list = font.split(message, 200);
		int i = Math.max(200, list.stream().mapToInt(font::width).max().orElse(200));
		return new SystemToast(id, title, list, i + 30);
	}

	private SystemToast(SystemToast.SystemToastId id, Component title, List<FormattedCharSequence> messageLines, int width) {
		this.id = id;
		this.title = title;
		this.messageLines = messageLines;
		this.width = width;
	}

	private static ImmutableList<FormattedCharSequence> nullToEmpty(@Nullable Component message) {
		return message == null ? ImmutableList.of() : ImmutableList.of(message.getVisualOrderText());
	}

	@Override
	public int width() {
		return this.width;
	}

	@Override
	public int height() {
		return 20 + Math.max(this.messageLines.size(), 1) * 12;
	}

	public void forceHide() {
		this.forceHide = true;
	}

	@Override
	public Toast.Visibility getWantedVisibility() {
		return this.wantedVisibility;
	}

	@Override
	public void update(ToastManager toastManager, long visibilityTime) {
		if (this.changed) {
			this.lastChanged = visibilityTime;
			this.changed = false;
		}

		double d = this.id.displayTime * toastManager.getNotificationDisplayTimeMultiplier();
		long l = visibilityTime - this.lastChanged;
		this.wantedVisibility = !this.forceHide && l < d ? Toast.Visibility.SHOW : Toast.Visibility.HIDE;
	}

	@Override
	public void render(GuiGraphics guiGraphics, Font font, long visibilityTime) {
		guiGraphics.blitSprite(RenderType::guiTextured, BACKGROUND_SPRITE, 0, 0, this.width(), this.height());
		if (this.messageLines.isEmpty()) {
			guiGraphics.drawString(font, this.title, 18, 12, -256, false);
		} else {
			guiGraphics.drawString(font, this.title, 18, 7, -256, false);

			for (int i = 0; i < this.messageLines.size(); i++) {
				guiGraphics.drawString(font, (FormattedCharSequence)this.messageLines.get(i), 18, 18 + i * 12, -1, false);
			}
		}
	}

	public void reset(Component title, @Nullable Component message) {
		this.title = title;
		this.messageLines = nullToEmpty(message);
		this.changed = true;
	}

	public SystemToast.SystemToastId getToken() {
		return this.id;
	}

	public static void add(ToastManager toastManager, SystemToast.SystemToastId id, Component title, @Nullable Component message) {
		toastManager.addToast(new SystemToast(id, title, message));
	}

	public static void addOrUpdate(ToastManager toastManager, SystemToast.SystemToastId id, Component title, @Nullable Component message) {
		SystemToast systemToast = toastManager.getToast(SystemToast.class, id);
		if (systemToast == null) {
			add(toastManager, id, title, message);
		} else {
			systemToast.reset(title, message);
		}
	}

	public static void forceHide(ToastManager toastManager, SystemToast.SystemToastId id) {
		SystemToast systemToast = toastManager.getToast(SystemToast.class, id);
		if (systemToast != null) {
			systemToast.forceHide();
		}
	}

	public static void onWorldAccessFailure(Minecraft minecraft, String message) {
		add(
			minecraft.getToastManager(),
			SystemToast.SystemToastId.WORLD_ACCESS_FAILURE,
			Component.translatable("selectWorld.access_failure"),
			Component.literal(message)
		);
	}

	public static void onWorldDeleteFailure(Minecraft minecraft, String message) {
		add(
			minecraft.getToastManager(),
			SystemToast.SystemToastId.WORLD_ACCESS_FAILURE,
			Component.translatable("selectWorld.delete_failure"),
			Component.literal(message)
		);
	}

	public static void onPackCopyFailure(Minecraft minecraft, String message) {
		add(minecraft.getToastManager(), SystemToast.SystemToastId.PACK_COPY_FAILURE, Component.translatable("pack.copyFailure"), Component.literal(message));
	}

	public static void onFileDropFailure(Minecraft minecraft, int failedFileCount) {
		add(
			minecraft.getToastManager(),
			SystemToast.SystemToastId.FILE_DROP_FAILURE,
			Component.translatable("gui.fileDropFailure.title"),
			Component.translatable("gui.fileDropFailure.detail", failedFileCount)
		);
	}

	public static void onLowDiskSpace(Minecraft minecraft) {
		addOrUpdate(
			minecraft.getToastManager(),
			SystemToast.SystemToastId.LOW_DISK_SPACE,
			Component.translatable("chunk.toast.lowDiskSpace"),
			Component.translatable("chunk.toast.lowDiskSpace.description")
		);
	}

	public static void onChunkLoadFailure(Minecraft minecraft, ChunkPos chunkPos) {
		addOrUpdate(
			minecraft.getToastManager(),
			SystemToast.SystemToastId.CHUNK_LOAD_FAILURE,
			Component.translatable("chunk.toast.loadFailure", Component.translationArg(chunkPos)).withStyle(ChatFormatting.RED),
			Component.translatable("chunk.toast.checkLog")
		);
	}

	public static void onChunkSaveFailure(Minecraft minecraft, ChunkPos chunkPos) {
		addOrUpdate(
			minecraft.getToastManager(),
			SystemToast.SystemToastId.CHUNK_SAVE_FAILURE,
			Component.translatable("chunk.toast.saveFailure", Component.translationArg(chunkPos)).withStyle(ChatFormatting.RED),
			Component.translatable("chunk.toast.checkLog")
		);
	}

	@Environment(EnvType.CLIENT)
	public static class SystemToastId {
		public static final SystemToast.SystemToastId NARRATOR_TOGGLE = new SystemToast.SystemToastId();
		public static final SystemToast.SystemToastId WORLD_BACKUP = new SystemToast.SystemToastId();
		public static final SystemToast.SystemToastId PACK_LOAD_FAILURE = new SystemToast.SystemToastId();
		public static final SystemToast.SystemToastId WORLD_ACCESS_FAILURE = new SystemToast.SystemToastId();
		public static final SystemToast.SystemToastId PACK_COPY_FAILURE = new SystemToast.SystemToastId();
		public static final SystemToast.SystemToastId FILE_DROP_FAILURE = new SystemToast.SystemToastId();
		public static final SystemToast.SystemToastId PERIODIC_NOTIFICATION = new SystemToast.SystemToastId();
		public static final SystemToast.SystemToastId LOW_DISK_SPACE = new SystemToast.SystemToastId(10000L);
		public static final SystemToast.SystemToastId CHUNK_LOAD_FAILURE = new SystemToast.SystemToastId();
		public static final SystemToast.SystemToastId CHUNK_SAVE_FAILURE = new SystemToast.SystemToastId();
		public static final SystemToast.SystemToastId UNSECURE_SERVER_WARNING = new SystemToast.SystemToastId(10000L);
		final long displayTime;

		public SystemToastId(long displayTime) {
			this.displayTime = displayTime;
		}

		public SystemToastId() {
			this(5000L);
		}
	}
}