Move event to versioned class

Bukkit/src/main/java/com/plotsquared/bukkit/BukkitPlatform.java

@@ -37,6 +37,7 @@ import com.plotsquared.bukkit.listener.EntityEventListener;
 import com.plotsquared.bukkit.listener.EntitySpawnListener;
 import com.plotsquared.bukkit.listener.PaperListener;
 import com.plotsquared.bukkit.listener.PlayerEventListener;
+import com.plotsquared.bukkit.listener.PlayerEventListener120;
 import com.plotsquared.bukkit.listener.ProjectileEventListener;
 import com.plotsquared.bukkit.listener.ServerListener;
 import com.plotsquared.bukkit.listener.SingleWorldListener;
@@ -358,6 +359,9 @@ public final class BukkitPlatform extends JavaPlugin implements Listener, PlotPl
 
         if (Settings.Enabled_Components.EVENTS) {
             getServer().getPluginManager().registerEvents(injector().getInstance(PlayerEventListener.class), this);
+            if ((serverVersion()[1] == 20 && serverVersion()[2] >= 1) || serverVersion()[1] > 20) {
+                getServer().getPluginManager().registerEvents(injector().getInstance(PlayerEventListener120.class), this);
+            }
             getServer().getPluginManager().registerEvents(injector().getInstance(BlockEventListener.class), this);
             if (serverVersion()[1] >= 17) {
                 getServer().getPluginManager().registerEvents(injector().getInstance(BlockEventListener117.class), this);

Bukkit/src/main/java/com/plotsquared/bukkit/listener/PlayerEventListener.java

@@ -50,7 +50,6 @@ import com.plotsquared.core.plot.flag.implementations.DenyPortalsFlag;
 import com.plotsquared.core.plot.flag.implementations.DenyTeleportFlag;
 import com.plotsquared.core.plot.flag.implementations.DoneFlag;
 import com.plotsquared.core.plot.flag.implementations.DropProtectionFlag;
-import com.plotsquared.core.plot.flag.implementations.EditSignFlag;
 import com.plotsquared.core.plot.flag.implementations.HangingBreakFlag;
 import com.plotsquared.core.plot.flag.implementations.HangingPlaceFlag;
 import com.plotsquared.core.plot.flag.implementations.HostileInteractFlag;
@@ -88,7 +87,6 @@ import org.bukkit.Material;
 import org.bukkit.block.Block;
 import org.bukkit.block.BlockFace;
 import org.bukkit.block.BlockState;
-import org.bukkit.block.Sign;
 import org.bukkit.block.data.Waterlogged;
 import org.bukkit.command.PluginCommand;
 import org.bukkit.entity.ArmorStand;
@@ -133,7 +131,6 @@ import org.bukkit.event.player.PlayerMoveEvent;
 import org.bukkit.event.player.PlayerPortalEvent;
 import org.bukkit.event.player.PlayerQuitEvent;
 import org.bukkit.event.player.PlayerRespawnEvent;
-import org.bukkit.event.player.PlayerSignOpenEvent;
 import org.bukkit.event.player.PlayerTakeLecternBookEvent;
 import org.bukkit.event.player.PlayerTeleportEvent;
 import org.bukkit.event.vehicle.VehicleDestroyEvent;
@@ -1875,29 +1872,4 @@ public class PlayerEventListener implements Listener {
             event.setCancelled(true);
         }
     }
-
-    @EventHandler(ignoreCancelled = true)
-    @SuppressWarnings({"removal", "UnstableApiUsage"}) // thanks Paper, thanks Spigot
-    public void onPlayerSignOpenEvent(PlayerSignOpenEvent event) {
-        Sign sign = event.getSign();
-        Location location = BukkitUtil.adapt(sign.getLocation());
-        PlotArea area = location.getPlotArea();
-        if (area == null) {
-            return;
-        }
-        Plot plot = location.getOwnedPlot();
-        if (plot == null) {
-            if (PlotFlagUtil.isAreaRoadFlagsAndFlagEquals(area, EditSignFlag.class, false)) {
-                event.setCancelled(true);
-            }
-            return;
-        }
-        if (plot.isAdded(event.getPlayer().getUniqueId())) {
-            return; // allow for added players
-        }
-        if (!plot.getFlag(EditSignFlag.class)) {
-            plot.debug(event.getPlayer().getName() + " could not edit the sign because of edit-sign = false");
-            event.setCancelled(true);
-        }
-    }
 }

Bukkit/src/main/java/com/plotsquared/bukkit/listener/PlayerEventListener120.java

@@ -0,0 +1,62 @@
+/*
+ * PlotSquared, a land and world management plugin for Minecraft.
+ * Copyright (C) IntellectualSites <https://intellectualsites.com>
+ * Copyright (C) IntellectualSites team and contributors
+ *
+ * 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 <https://www.gnu.org/licenses/>.
+ */
+package com.plotsquared.bukkit.listener;
+
+import org.bukkit.block.Sign;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerSignOpenEvent;
+import com.plotsquared.bukkit.util.BukkitUtil;
+import com.plotsquared.core.location.Location;
+import com.plotsquared.core.plot.Plot;
+import com.plotsquared.core.plot.PlotArea;
+import com.plotsquared.core.plot.flag.implementations.EditSignFlag;
+import com.plotsquared.core.util.PlotFlagUtil;
+
+/**
+ * For events since 1.20.1
+ */
+public class PlayerEventListener120 implements Listener {
+
+    @EventHandler(ignoreCancelled = true)
+    @SuppressWarnings({"removal", "UnstableApiUsage"}) // thanks Paper, thanks Spigot
+    public void onPlayerSignOpenEvent(PlayerSignOpenEvent event) {
+        Sign sign = event.getSign();
+        Location location = BukkitUtil.adapt(sign.getLocation());
+        PlotArea area = location.getPlotArea();
+        if (area == null) {
+            return;
+        }
+        Plot plot = location.getOwnedPlot();
+        if (plot == null) {
+            if (PlotFlagUtil.isAreaRoadFlagsAndFlagEquals(area, EditSignFlag.class, false)) {
+                event.setCancelled(true);
+            }
+            return;
+        }
+        if (plot.isAdded(event.getPlayer().getUniqueId())) {
+            return; // allow for added players
+        }
+        if (!plot.getFlag(EditSignFlag.class)) {
+            plot.debug(event.getPlayer().getName() + " could not edit the sign because of edit-sign = false");
+            event.setCancelled(true);
+        }
+    }
+
+}

Core/src/main/java/com/plotsquared/core/plot/flag/implementations/EditSignFlag.java

@@ -1,3 +1,21 @@
+/*
+ * PlotSquared, a land and world management plugin for Minecraft.
+ * Copyright (C) IntellectualSites <https://intellectualsites.com>
+ * Copyright (C) IntellectualSites team and contributors
+ *
+ * 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 <https://www.gnu.org/licenses/>.
+ */
 package com.plotsquared.core.plot.flag.implementations;
 
 import com.plotsquared.core.configuration.caption.TranslatableCaption;