From 68598777b1996b2a939dbf5d2603a0a90b1ee74f Mon Sep 17 00:00:00 2001
From: Len <40720638+destro174@users.noreply.github.com>
Date: Tue, 7 Jun 2022 14:38:30 +0200
Subject: [PATCH] Add initial listener classes

---
 build.gradle.kts                              |  8 ++--
 .../playershops/listener/EventListener.java   | 20 ++++++++++
 .../listener/InventoryListener.java           | 39 +++++++++++++++++++
 3 files changed, 63 insertions(+), 4 deletions(-)
 create mode 100644 src/main/java/com/alttd/playershops/listener/EventListener.java
 create mode 100644 src/main/java/com/alttd/playershops/listener/InventoryListener.java

diff --git a/build.gradle.kts b/build.gradle.kts
index b6c68b2..1d91c36 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -47,9 +47,9 @@ bukkit {
 
 fun gitCommit(): String {
     val os = ByteArrayOutputStream()
-//    project.exec {
-//        commandLine = "git rev-parse --short HEAD".split(" ")
-//        standardOutput = os
-//    }
+    project.exec {
+        commandLine = "git rev-parse --short HEAD".split(" ")
+        standardOutput = os
+    }
     return String(os.toByteArray()).trim()
 }
\ No newline at end of file
diff --git a/src/main/java/com/alttd/playershops/listener/EventListener.java b/src/main/java/com/alttd/playershops/listener/EventListener.java
new file mode 100644
index 0000000..ab67312
--- /dev/null
+++ b/src/main/java/com/alttd/playershops/listener/EventListener.java
@@ -0,0 +1,20 @@
+package com.alttd.playershops.listener;
+
+import org.bukkit.Bukkit;
+import org.bukkit.event.HandlerList;
+import org.bukkit.plugin.java.JavaPlugin;
+
+public class EventListener implements org.bukkit.event.Listener {
+    protected boolean isRegistered = false;
+
+    protected void register(JavaPlugin instance) {
+        Bukkit.getServer().getPluginManager().registerEvents(this, instance);
+        isRegistered = true;
+    }
+
+    protected void unregister() {
+        HandlerList.unregisterAll(this);
+        isRegistered = false;
+    }
+
+}
diff --git a/src/main/java/com/alttd/playershops/listener/InventoryListener.java b/src/main/java/com/alttd/playershops/listener/InventoryListener.java
new file mode 100644
index 0000000..daca892
--- /dev/null
+++ b/src/main/java/com/alttd/playershops/listener/InventoryListener.java
@@ -0,0 +1,39 @@
+package com.alttd.playershops.listener;
+
+import org.bukkit.OfflinePlayer;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
+import org.bukkit.event.inventory.InventoryCloseEvent;
+import org.bukkit.event.inventory.InventoryDragEvent;
+import org.bukkit.event.player.PlayerQuitEvent;
+import org.bukkit.inventory.Inventory;
+
+public class InventoryListener extends EventListener {
+
+    protected final Inventory inventory;
+    protected boolean cancelCloseUnregister = false;
+
+    public InventoryListener(Inventory inv) {
+        this.inventory = inv;
+    }
+
+    @EventHandler(ignoreCancelled = true)
+    public void unregisterOnClose(InventoryCloseEvent event) {
+        if (event.getView().getTopInventory().equals(inventory) && !cancelCloseUnregister) unregister();
+    }
+
+    @EventHandler(ignoreCancelled = true)
+    public void unregisterOnLeaveEvent(PlayerQuitEvent event) {
+        if ((inventory.getHolder() instanceof OfflinePlayer) && event.getPlayer().getUniqueId().equals(((OfflinePlayer) inventory.getHolder()).getUniqueId()))
+            unregister();
+    }
+
+    @EventHandler(ignoreCancelled = true, priority = EventPriority.LOWEST)
+    public void onInventoryDrag(InventoryDragEvent event) {
+        if (event.getView().getTopInventory().equals(inventory)) for (int slot : event.getRawSlots()) if (slot < inventory.getSize()) {
+            event.setCancelled(true);
+            return;
+        }
+    }
+
+}