- New Privacy Policy GUI

Signed-off-by: syeyoung <cyoung06@naver.com>

9 files changed, 192 insertions, 102 deletions

diff --git a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/Main.java b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/Main.java
index 4a7ef695..6039823b 100755
--- a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/Main.java
+++ b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/Main.java
@@ -32,6 +32,7 @@ import kr.syeyoung.dungeonsguide.launcher.gui.tooltip.WidgetNotificationAutoClos
 import kr.syeyoung.dungeonsguide.launcher.guiv2.elements.richtext.fonts.DefaultFontRenderer;
 import kr.syeyoung.dungeonsguide.launcher.loader.*;
 import kr.syeyoung.dungeonsguide.launcher.util.ProgressStateHolder;
+import kr.syeyoung.dungeonsguide.launcher.util.cursor.GLCursors;
 import lombok.Getter;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.resources.IReloadableResourceManager;
@@ -61,6 +62,7 @@ public class Main
 {
     public static final String MOD_ID = "dungeons_guide_loader";
     public static final String VERSION = "4.0.0";
+    public static final String POLICY = "https://v2.dungeons.guide/privacyPolicy.gui";
     public static final String DOMAIN = "https://v2.dungeons.guide/api";
 
     private static Main main;
@@ -278,6 +280,10 @@ public class Main
 
     @EventHandler
     public void preInit(FMLPreInitializationEvent preInitializationEvent) {
+        try {
+            GLCursors.setupCursors();
+        } catch (Exception e) {}
+
         Security.addProvider(new BouncyCastleProvider());
         // setup static variables
         main = this;
diff --git a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/AuthManager.java b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/AuthManager.java
index 9a491b08..6f9a2d65 100644
--- a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/AuthManager.java
+++ b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/AuthManager.java
@@ -27,10 +27,12 @@ import kr.syeyoung.dungeonsguide.launcher.exceptions.auth.AuthenticationUnavaila
 import kr.syeyoung.dungeonsguide.launcher.exceptions.auth.PrivacyPolicyRequiredException;
 import kr.syeyoung.dungeonsguide.launcher.gui.screen.GuiDisplayer;
 import kr.syeyoung.dungeonsguide.launcher.gui.screen.GuiLoadingError;
-import kr.syeyoung.dungeonsguide.launcher.gui.screen.GuiPrivacyPolicy;
+import kr.syeyoung.dungeonsguide.launcher.gui.screen.WidgetPrivacyPolicy;
 import kr.syeyoung.dungeonsguide.launcher.gui.tooltip.Notification;
 import kr.syeyoung.dungeonsguide.launcher.gui.tooltip.NotificationManager;
 import kr.syeyoung.dungeonsguide.launcher.gui.tooltip.WidgetNotification;
+import kr.syeyoung.dungeonsguide.launcher.guiv2.GuiScreenAdapter;
+import kr.syeyoung.dungeonsguide.launcher.guiv2.elements.GlobalHUDScale;
 import net.minecraft.client.Minecraft;
 import net.minecraftforge.common.MinecraftForge;
 import org.apache.logging.log4j.LogManager;
@@ -73,6 +75,7 @@ public class AuthManager {
         else if (currentToken instanceof PrivacyPolicyRequiredToken) throw new PrivacyPolicyRequiredException();
         throw new IllegalStateException("weird token: "+currentToken);
     }
+    final ScheduledExecutorService scheduler = Executors.newScheduledThreadPool(1, new ThreadFactoryBuilder().setNameFormat("DgAuth Pool").build());
 
 
     private volatile boolean initlock = false;
@@ -85,8 +88,6 @@ public class AuthManager {
 
         initlock = true;
 
-        ThreadFactory namedThreadFactory = new ThreadFactoryBuilder().setNameFormat("DgAuth Pool").build();
-        final ScheduledExecutorService scheduler = Executors.newScheduledThreadPool(1, namedThreadFactory);
         scheduler.scheduleAtFixedRate(() -> {
             boolean shouldReAuth = false;
             if (getToken().isUserVerified() && !getToken().getUUID().replace("-", "").equals(Minecraft.getMinecraft().getSession().getPlayerID())) {
@@ -131,7 +132,7 @@ public class AuthManager {
 
 
             if (currentToken instanceof PrivacyPolicyRequiredToken) {
-                GuiDisplayer.INSTANCE.displayGui(new GuiPrivacyPolicy());
+                GuiDisplayer.INSTANCE.displayGui(new GuiScreenAdapter(new GlobalHUDScale(new WidgetPrivacyPolicy())));
                 throw new PrivacyPolicyRequiredException();
             }
 
@@ -140,12 +141,13 @@ public class AuthManager {
             NotificationManager.getInstance().removeNotification(privacyPolicyRequired);
         } catch (Exception e) {
             if (e instanceof PrivacyPolicyRequiredException) {
+                NotificationManager.getInstance().removeNotification(authenticationFailure);
                 NotificationManager.getInstance().updateNotification(privacyPolicyRequired, new WidgetNotification(privacyPolicyRequired, Notification.builder()
                         .title("Privacy Policy")
                         .description("Please accept Dungeons Guide\nPrivacy Policy to enjoy server based\nfeatures of Dungeons Guide\n\n(Including Auto-Update/Remote-Jar)")
                         .titleColor(0xFFFF0000)
                         .onClick(() -> {
-                            GuiDisplayer.INSTANCE.displayGui(new GuiPrivacyPolicy());
+                            GuiDisplayer.INSTANCE.displayGui(new GuiScreenAdapter(new GlobalHUDScale(new WidgetPrivacyPolicy())));
                         })
                         .build()));
             } else {
@@ -167,8 +169,18 @@ public class AuthManager {
         return currentToken;
     }
 
+    private volatile boolean accepting = false;
+    public synchronized void acceptPrivacyPolicy(long version) {
+        if (accepting) return;
+        accepting = true;
+        scheduler.schedule(() -> {try {
+            acceptPrivacyPolicy0(version);
+        } catch (Exception e) {e.printStackTrace();} finally {
+            accepting = false;
+        }}, 0, TimeUnit.MILLISECONDS);
+    }
 
-    public AuthToken acceptPrivacyPolicy(long version) {
+    private AuthToken acceptPrivacyPolicy0(long version) {
         if (reauthLock) {
             while(reauthLock);
             return currentToken;
@@ -188,7 +200,7 @@ public class AuthManager {
                             .description("Please accept the Dungeons Guide\nPrivacy Policy to enjoy server based\nfeatures of Dungeons Guide\n\n(Including Auto-Update/Remote-Jar)")
                             .titleColor(0xFFFF0000)
                             .onClick(() -> {
-                                GuiDisplayer.INSTANCE.displayGui(new GuiPrivacyPolicy());
+                                GuiDisplayer.INSTANCE.displayGui(new GuiScreenAdapter(new GlobalHUDScale(new WidgetPrivacyPolicy())));
                             })
                             .build()));
                 } else {
diff --git a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/gui/screen/GuiDisplayer.java b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/gui/screen/GuiDisplayer.java
index 35d9a9ea..ad942ffb 100644
--- a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/gui/screen/GuiDisplayer.java
+++ b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/gui/screen/GuiDisplayer.java
@@ -20,6 +20,7 @@ package kr.syeyoung.dungeonsguide.launcher.gui.screen;
 
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.gui.GuiMainMenu;
+import net.minecraft.client.gui.GuiScreen;
 import net.minecraftforge.client.event.GuiOpenEvent;
 import net.minecraftforge.fml.common.eventhandler.EventPriority;
 import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
@@ -31,7 +32,7 @@ public class GuiDisplayer {
     public static GuiDisplayer INSTANCE = new GuiDisplayer();
     private GuiDisplayer() {}
 
-    private Queue<SpecialGuiScreen> guiScreensToShow = new LinkedList<>();
+    private Queue<GuiScreen> guiScreensToShow = new LinkedList<>();
     private boolean isMcLoaded;
 
 
@@ -40,23 +41,21 @@ public class GuiDisplayer {
         if (guiOpenEvent.gui instanceof GuiMainMenu) {
             isMcLoaded = true;
         }
-        if (guiScreensToShow.size() > 0 && guiOpenEvent.gui != guiScreensToShow.peek()) {
-            SpecialGuiScreen gui = guiScreensToShow.peek();
+        if (isMcLoaded && !guiScreensToShow.isEmpty()) {
+            GuiScreen gui = guiScreensToShow.poll();
             if (gui == null) return;
-            gui.setOnDismiss(guiScreensToShow::poll);
             guiOpenEvent.gui = gui;
         }
     }
 
-    public void displayGui(SpecialGuiScreen specialGuiScreen) {
+    public void displayGui(GuiScreen specialGuiScreen) {
         if (specialGuiScreen == null) return;
         if (!guiScreensToShow.contains(specialGuiScreen))
             guiScreensToShow.add(specialGuiScreen);
-        if (isMcLoaded) {
-            SpecialGuiScreen gui = guiScreensToShow.peek();
-            if (gui == null) return;
-            gui.setOnDismiss(guiScreensToShow::poll);
-            Minecraft.getMinecraft().displayGuiScreen(gui);
+        if (isMcLoaded && Minecraft.getMinecraft().isCallingFromMinecraftThread()) {
+            Minecraft.getMinecraft().displayGuiScreen(null);
+        } else if (isMcLoaded) {
+            Minecraft.getMinecraft().addScheduledTask(() -> Minecraft.getMinecraft().displayGuiScreen(null));
         }
     }
 }
diff --git a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/gui/screen/GuiPrivacyPolicy.java b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/gui/screen/GuiPrivacyPolicy.java
deleted file mode 100644
index 66b26111..00000000
--- a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/gui/screen/GuiPrivacyPolicy.java
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
- * Dungeons Guide - The most intelligent Hypixel Skyblock Dungeons Mod
- * Copyright (C) 2022  cyoung06 (syeyoung)
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero 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 Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-package kr.syeyoung.dungeonsguide.launcher.gui.screen;
-
-import kr.syeyoung.dungeonsguide.launcher.auth.AuthManager;
-import net.minecraft.client.Minecraft;
-import net.minecraft.client.gui.FontRenderer;
-import net.minecraft.client.gui.GuiButton;
-import net.minecraft.client.gui.ScaledResolution;
-import org.lwjgl.opengl.GL11;
-
-import java.io.IOException;
-
-public class GuiPrivacyPolicy extends SpecialGuiScreen {
-    @Override
-    public void initGui() {
-        super.initGui();
-        ScaledResolution sr = new ScaledResolution(Minecraft.getMinecraft());
-
-        int width = Math.min(300, sr.getScaledWidth() / 2 - 20);
-
-        this.buttonList.add(new GuiButton(0, sr.getScaledWidth()/2 + 10,sr.getScaledHeight()-40, width, 20,"Accept Privacy Policy"));
-        this.buttonList.add(new GuiButton(1, sr.getScaledWidth() / 2 - 10 - width,sr.getScaledHeight()-40, width, 20,"Deny and Play Without DG"));
-    }
-
-
-    @Override
-    protected void actionPerformed(GuiButton button) throws IOException {
-        super.actionPerformed(button);
-        if (button.id == 0) {
-            // accept
-            try {
-                AuthManager.getInstance().acceptPrivacyPolicy(1);
-            } catch (Exception e) {
-                e.printStackTrace();
-//                GuiDisplayer.INSTANCE.displayGui(new GuiLoadingError(e));
-                // display tooltip.
-            }
-            dismiss();
-        } else if (button.id == 1) {
-            dismiss();
-        }
-    }
-
-
-    @Override
-    public void drawScreen(int mouseX, int mouseY, float partialTicks) {
-        super.drawBackground(0);
-
-        ScaledResolution sr = new ScaledResolution(Minecraft.getMinecraft());
-        FontRenderer fontRenderer = Minecraft.getMinecraft().fontRendererObj;
-
-        final String ACCEPT_POLICY_MSG = "Please accept or deny the Dungeons Guide Privacy Policy to continue";
-
-        fontRenderer.drawString(ACCEPT_POLICY_MSG, (sr.getScaledWidth()-fontRenderer.getStringWidth(ACCEPT_POLICY_MSG))/2,40,0xFFFF0000);
-        fontRenderer.drawString("Blah blah legal stuff", (sr.getScaledWidth()-fontRenderer.getStringWidth(ACCEPT_POLICY_MSG))/2,sr.getScaledHeight() / 2, 0xFFFFFFFF);
-
-        super.drawScreen(mouseX, mouseY, partialTicks);
-    }
-
-    public static void clip(ScaledResolution resolution, int x, int y, int width, int height) {
-        if (width < 0 || height < 0) return;
-
-        int scale = resolution.getScaleFactor();
-        GL11.glScissor((x ) * scale, Minecraft.getMinecraft().displayHeight - (y + height) * scale, (width) * scale, height * scale);
-    }
-}
diff --git a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/gui/screen/SpecialGuiScreen.java b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/gui/screen/SpecialGuiScreen.java
index efe5c36a..280b5b3e 100644
--- a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/gui/screen/SpecialGuiScreen.java
+++ b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/gui/screen/SpecialGuiScreen.java
@@ -29,7 +29,8 @@ public abstract class SpecialGuiScreen extends GuiScreen {
     }
 
     protected void dismiss() {
-        onDismiss.run();
+        if (onDismiss != null)
+            onDismiss.run();
         Minecraft.getMinecraft().displayGuiScreen(null);
     }
 }
diff --git a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/gui/screen/WidgetPrivacyPolicy.java b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/gui/screen/WidgetPrivacyPolicy.java
new file mode 100644
index 00000000..0ee99c92
--- /dev/null
+++ b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/gui/screen/WidgetPrivacyPolicy.java
@@ -0,0 +1,101 @@
+/*
+ * Dungeons Guide - The most intelligent Hypixel Skyblock Dungeons Mod
+ * Copyright (C) 2023  cyoung06 (syeyoung)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package kr.syeyoung.dungeonsguide.launcher.gui.screen;
+
+import kr.syeyoung.dungeonsguide.launcher.LetsEncrypt;
+import kr.syeyoung.dungeonsguide.launcher.Main;
+import kr.syeyoung.dungeonsguide.launcher.auth.AuthManager;
+import kr.syeyoung.dungeonsguide.launcher.guiv2.BindableAttribute;
+import kr.syeyoung.dungeonsguide.launcher.guiv2.Widget;
+import kr.syeyoung.dungeonsguide.launcher.guiv2.xml.AnnotatedImportOnlyWidget;
+import kr.syeyoung.dungeonsguide.launcher.guiv2.xml.DomElementRegistry;
+import kr.syeyoung.dungeonsguide.launcher.guiv2.xml.ParsedWidgetConverter;
+import kr.syeyoung.dungeonsguide.launcher.guiv2.xml.annotations.Bind;
+import kr.syeyoung.dungeonsguide.launcher.guiv2.xml.annotations.On;
+import kr.syeyoung.dungeonsguide.launcher.guiv2.xml.data.Parser;
+import kr.syeyoung.dungeonsguide.launcher.guiv2.xml.data.ParserElement;
+import kr.syeyoung.dungeonsguide.launcher.guiv2.xml.data.W3CBackedParser;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.audio.PositionedSoundRecord;
+import net.minecraft.util.ResourceLocation;
+import org.apache.commons.io.IOUtils;
+
+import javax.net.ssl.HttpsURLConnection;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URL;
+import java.util.Collections;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
+public class WidgetPrivacyPolicy extends AnnotatedImportOnlyWidget {
+    private static final ExecutorService executor = Executors.newSingleThreadExecutor();
+    @Bind(variableName = "policy")
+    public final BindableAttribute<Widget> policy = new BindableAttribute<>(Widget.class);
+    @Bind(variableName = "policyVisibility")
+    public final BindableAttribute<String> policyVisibility = new BindableAttribute<>(String.class, "loading");
+
+    @Bind(variableName = "policyVersion")
+    public final BindableAttribute<Integer> version = new BindableAttribute<>(Integer.class, 0);
+
+    public WidgetPrivacyPolicy() {
+        super(new ResourceLocation("dungeons_guide_loader:gui/privacyPolicy/privacyPolicy.gui"));
+        reload();
+    }
+
+    @On(functionName = "accept")
+    public void accept() {
+        Minecraft.getMinecraft().getSoundHandler().playSound(PositionedSoundRecord.create(new ResourceLocation("gui.button.press"), 1.0F));
+        AuthManager.getInstance().acceptPrivacyPolicy(version.getValue());
+        Minecraft.getMinecraft().displayGuiScreen(null);
+    }
+    @On(functionName = "deny")
+    public void deny() {
+        Minecraft.getMinecraft().getSoundHandler().playSound(PositionedSoundRecord.create(new ResourceLocation("gui.button.press"), 1.0F));
+        Minecraft.getMinecraft().displayGuiScreen(null);
+    }
+
+    @On(functionName = "reload")
+    public void reload() {
+        Minecraft.getMinecraft().getSoundHandler().playSound(PositionedSoundRecord.create(new ResourceLocation("gui.button.press"), 1.0F));
+        policyVisibility.setValue("loading");
+        executor.submit(() -> {
+            try {
+                HttpsURLConnection urlConnection = (HttpsURLConnection) new URL(Main.POLICY).openConnection();
+                urlConnection.setSSLSocketFactory(LetsEncrypt.LETS_ENCRYPT);
+                urlConnection.setRequestProperty("User-Agent", "DungeonsGuide/4.0");
+                urlConnection.setConnectTimeout(1000);
+                urlConnection.setReadTimeout(3000);
+                urlConnection.setRequestMethod("GET");
+                urlConnection.setDoInput(true);
+
+                try (W3CBackedParser parser = new W3CBackedParser(urlConnection.getInputStream())) {
+                    ParserElement element = parser.getRootNode();
+                    ParsedWidgetConverter converter = DomElementRegistry.obtainConverter(element.getNodeName());
+                    Widget w = converter.convert(this, element);
+                    policy.setValue(w);
+                    policyVisibility.setValue("loaded");
+                }
+            } catch (Exception e) {
+                e.printStackTrace();
+                policyVisibility.setValue("failed");
+            }
+        });
+    }
+}
diff --git a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/guiv2/GuiScreenAdapter.java b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/guiv2/GuiScreenAdapter.java
index d4d46834..44dfb230 100644
--- a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/guiv2/GuiScreenAdapter.java
+++ b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/guiv2/GuiScreenAdapter.java
@@ -261,7 +261,8 @@ public class GuiScreenAdapter extends GuiScreen {
                     view.setCursor(EnumCursor.DEFAULT);
                     this.mouseMove(i, j);
                     EnumCursor newCursor = view.getCurrentCursor();
-                    if (prevCursor != newCursor) Mouse.setNativeCursor(GLCursors.getCursor(newCursor));
+                    if (prevCursor != newCursor)
+                        Mouse.setNativeCursor(GLCursors.getCursor(newCursor));
                 } catch (Throwable e) {
                     if (e.getMessage() == null || !e.getMessage().contains("hack to stop"))
                         e.printStackTrace();
diff --git a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/guiv2/elements/PolicyVersion.java b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/guiv2/elements/PolicyVersion.java
new file mode 100644
index 00000000..e0384810
--- /dev/null
+++ b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/guiv2/elements/PolicyVersion.java
@@ -0,0 +1,52 @@
+/*
+ * Dungeons Guide - The most intelligent Hypixel Skyblock Dungeons Mod
+ * Copyright (C) 2023  cyoung06 (syeyoung)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package kr.syeyoung.dungeonsguide.launcher.guiv2.elements;
+
+import kr.syeyoung.dungeonsguide.launcher.guiv2.BindableAttribute;
+import kr.syeyoung.dungeonsguide.launcher.guiv2.DomElement;
+import kr.syeyoung.dungeonsguide.launcher.guiv2.Widget;
+import kr.syeyoung.dungeonsguide.launcher.guiv2.layouter.Layouter;
+import kr.syeyoung.dungeonsguide.launcher.guiv2.primitive.ConstraintBox;
+import kr.syeyoung.dungeonsguide.launcher.guiv2.primitive.Size;
+import kr.syeyoung.dungeonsguide.launcher.guiv2.xml.AnnotatedExportOnlyWidget;
+import kr.syeyoung.dungeonsguide.launcher.guiv2.xml.annotations.Export;
+
+import java.util.Collections;
+import java.util.List;
+
+public class PolicyVersion extends AnnotatedExportOnlyWidget implements Layouter {
+    @Export(attributeName = "version")
+    public final BindableAttribute<Integer> docVersion = new BindableAttribute<>(Integer.class);
+    @Export(attributeName = "policyVersion")
+    public final BindableAttribute<Integer> bindVersion = new BindableAttribute<>(Integer.class);
+
+    public PolicyVersion() {
+        docVersion.exportTo(bindVersion);
+    }
+
+    @Override
+    public List<Widget> build(DomElement buildContext) {
+        return Collections.EMPTY_LIST;
+    }
+
+    @Override
+    public Size layout(DomElement buildContext, ConstraintBox constraintBox) {
+        return new Size(0,0);
+    }
+}
diff --git a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/guiv2/xml/DomElementRegistry.java b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/guiv2/xml/DomElementRegistry.java
index 4a4eff58..efa7a5fc 100644
--- a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/guiv2/xml/DomElementRegistry.java
+++ b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/guiv2/xml/DomElementRegistry.java
@@ -84,6 +84,7 @@ public class DomElementRegistry {
         register("InvertStencil", new ExportedWidgetConverter(NegativeStencil::new));
         register("WrapGrid", new ExportedWidgetConverter(Wrap::new));
 
+        register("PolicyVersion", new ExportedWidgetConverter(PolicyVersion::new));
         register("ColorButton", new DelegatingWidgetConverter(new ResourceLocation("dungeons_guide_loader:gui/elements/simpleButton.gui")));
         register("RoundButton", new DelegatingWidgetConverter(new ResourceLocation("dungeons_guide_loader:gui/elements/dgButton.gui")));
         register("IconButton", new DelegatingWidgetConverter(new ResourceLocation("dungeons_guide_loader:gui/elements/iconButton.gui")));