Add delete event handler related methods;

Author: LamGC

src/main/java/net/lamgc/utils/event/BasicEventHandlerList.java

@@ -43,6 +43,27 @@ public void addEventHandlerMethod(Class<? extends EventObject> eventObject, Meth
             eventMethodMap.put(eventObject, new HashSet<>());
         }
         eventMethodMap.get(eventObject).add(eventHandlerMethod);
-        //System.out.println("已添加新的Handler方法: Class[" + eventHandlerMethod.getDeclaringClass().getSimpleName() + "] methodName[" + eventHandlerMethod.getName() + "] eventObject[" + eventObject.getSimpleName() + "]");
+    }
+
+    @Override
+    public void removeEventHandler(Class<? extends EventHandler> handler) {
+        Method[] methods = handler.getDeclaredMethods();
+        for(Method method : methods){
+            int modifiers = method.getModifiers();
+            if(!Modifier.isPublic(modifiers) || Modifier.isAbstract(modifiers) || Modifier.isInterface(modifiers)){
+                //System.out.println("方法不是公开的/抽象方法/接口方法: " + modifiers);
+                continue;
+            }
+            Class<?>[] parameterTypes = method.getParameterTypes();
+            if(parameterTypes.length != 1){
+                //System.out.println("参数过多: " + parameterTypes.length);
+                continue;
+            }
+            if(!EventObject.class.isAssignableFrom(parameterTypes[0])){
+                //System.out.println("不是EventObject子类");
+                continue;
+            }
+            eventMethodMap.get(parameterTypes[0]).remove(method);
+        }
     }
 }

src/main/java/net/lamgc/utils/event/EventHandlerList.java

@@ -31,4 +31,17 @@ public interface EventHandlerList {
      */
     void addEventHandlerMethod(Class<? extends EventObject> eventObject, Method eventHandlerMethod);
 
+    /**
+     * 通过{@link EventHandler}对象删除EventHandler
+     * @param handler 要删除的Handler对象
+     */
+    default void removeEventHandler(EventHandler handler){
+        removeEventHandler(handler.getClass());
+    }
+
+    /**
+     * 通过{@link EventHandler}Class删除EventHandler
+     * @param handler 要删除的Handler Class
+     */
+    void removeEventHandler(Class<? extends EventHandler> handler);
 }

src/main/java/net/lamgc/utils/event/EventHandlerObjectMap.java

@@ -18,4 +18,11 @@ public interface EventHandlerObjectMap {
      * @return 如果找到则返回EventHandler对象, 无则返回null
      */
     EventHandler getHandlerObject(Class<?> eventHandlerClass);
+
+    /**
+     * 删除指定的{@link EventHandler}
+     * @param handler 要删除的Handler
+     */
+    void removeHandlerObject(EventHandler handler);
+
 }

src/main/java/net/lamgc/utils/event/HashHandlerObjectMap.java

@@ -15,4 +15,9 @@ public void addHandlerObject(EventHandler eventHandler) {
     public EventHandler getHandlerObject(Class<?> eventHandlerClass) {
         return handlerMap.get(eventHandlerClass);
     }
+
+    @Override
+    public void removeHandlerObject(EventHandler handler) {
+        handlerMap.remove(handler.getClass());
+    }
 }