1 files changed, 66 insertions, 0 deletions
diff --git a/src/com/isode/stroke/signals/Signal7.java b/src/com/isode/stroke/signals/Signal7.java
new file mode 100644
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+++ b/src/com/isode/stroke/signals/Signal7.java
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+/*
+ * Copyright (c) 2012-2015, Isode Limited, London, England.
+ * All rights reserved.
+ */
+
+package com.isode.stroke.signals;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import com.isode.stroke.signals.SignalConnection;
+import com.isode.stroke.signals.Slot;
+
+
+/**
+ * An approximation of the boost::signals system with 4 parameters
+ * @param <T1> Type 1
+ * @param <T2> Type 2
+ * @param <T3> Type 3
+ * @param <T4> Type 4
+ */
+public class Signal7<T1, T2, T3, T4, T5, T6, T7> {
+    private final Map<SignalConnection, Slot7<T1, T2, T3, T4, T5, T6, T7> > binds_ = Collections.synchronizedMap(
+            new HashMap<SignalConnection, Slot7<T1, T2, T3, T4, T5, T6, T7> >());
+
+    /**
+     * Add a slot which will be notified
+     * @param bind slot, not null
+     * @return signal connection
+     */
+    public SignalConnection connect(Slot7<T1, T2, T3, T4, T5, T6, T7> bind) {
+        final SignalConnection connection = new SignalConnection();
+        binds_.put(connection, bind);
+        connection.onDestroyed.connect(new Slot() {
+            public void call() {
+                binds_.remove(connection);
+            }
+        });
+        return connection;
+    }
+
+    /**
+     * Notify all slots(listeners)
+     * @param p1 parameter value 1
+     * @param p2 parameter value 2
+     * @param p3 parameter value 3
+     * @param p4 parameter value 4
+     */
+    public void emit(T1 p1, T2 p2, T3 p3, T4 p4, T5 p5, T6 p6, T7 p7) {
+        List<Slot7<T1, T2, T3, T4, T5, T6, T7>> binds = new ArrayList<Slot7<T1, T2, T3, T4, T5, T6, T7>>();
+        binds.addAll(binds_.values());
+        for (Slot7<T1, T2, T3, T4, T5, T6, T7> bind : binds) {
+            bind.call(p1, p2, p3, p4, p5, p6, p7);
+        }
+    }
+
+    /**
+     * Remove all slots(listeners)
+     */
+    public void disconnectAll() {
+        binds_.clear();
+    }
+}