listener system

2 files changed, 27 insertions, 6 deletions

diff --git a/src/main/java/cc/polyfrost/oneconfig/config/Config.java b/src/main/java/cc/polyfrost/oneconfig/config/Config.java
index c3cbe8b..f640610 100644
--- a/src/main/java/cc/polyfrost/oneconfig/config/Config.java
+++ b/src/main/java/cc/polyfrost/oneconfig/config/Config.java
@@ -175,4 +175,15 @@ public class Config {
         if (!optionNames.containsKey(option)) return;
         optionNames.get(option).addDependency(condition);
     }
+
+    /**
+     * Register a new listener for when an option changes
+     *
+     * @param option   The name of the field, or if the field is in a page "pageName.fieldName"
+     * @param runnable What should be executed after the option is changed
+     */
+    protected void addListener(String option, Runnable runnable) {
+        if (!optionNames.containsKey(option)) return;
+        optionNames.get(option).addListener(runnable);
+    }
 }
diff --git a/src/main/java/cc/polyfrost/oneconfig/config/elements/BasicOption.java b/src/main/java/cc/polyfrost/oneconfig/config/elements/BasicOption.java
index 947156a..0408c0a 100644
--- a/src/main/java/cc/polyfrost/oneconfig/config/elements/BasicOption.java
+++ b/src/main/java/cc/polyfrost/oneconfig/config/elements/BasicOption.java
@@ -13,6 +13,7 @@ public abstract class BasicOption {
     public final String category;
     public final String subcategory;
     private final ArrayList<Supplier<Boolean>> dependencies = new ArrayList<>();
+    private final ArrayList<Runnable> listeners = new ArrayList<>();
 
     /**
      * Initialize option
@@ -83,6 +84,16 @@ public abstract class BasicOption {
     }
 
     /**
+     * @return If the option is enabled, based on the dependencies
+     */
+    protected boolean isEnabled() {
+        for (Supplier<Boolean> dependency : dependencies) {
+            if (!dependency.get()) return false;
+        }
+        return true;
+    }
+
+    /**
      * Add a condition to this option
      *
      * @param supplier The dependency
@@ -92,12 +103,11 @@ public abstract class BasicOption {
     }
 
     /**
-     * @return If the option is enabled, based on the dependencies
+     * Add a listener to this option
+     *
+     * @param runnable The listener
      */
-    protected boolean isEnabled() {
-        for (Supplier<Boolean> dependency : dependencies) {
-            if (!dependency.get()) return false;
-        }
-        return true;
+    public void addListener(Runnable runnable) {
+        this.listeners.add(runnable);
     }
 }