Minor cleanups

[quassel.git] / src / common / signalproxy.h

diff --git a/src/common/signalproxy.h b/src/common/signalproxy.h
index dce008a..ac4b8c6 100644 (file)
--- a/src/common/signalproxy.h
+++ b/src/common/signalproxy.h
@@ -18,12 +18,14 @@
  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.         *
  ***************************************************************************/
 
-#ifndef SIGNALPROXY_H
-#define SIGNALPROXY_H
+#pragma once
 
 #include <QEvent>
 #include <QSet>
 
+#include <functional>
+#include <initializer_list>
+
 #include "protocol.h"
 
 struct QMetaObject;
@@ -77,11 +79,51 @@ public:
     bool isSecure() const { return _secure; }
     void dumpProxyStats();
     void dumpSyncMap(SyncableObject *object);
-    inline int peerCount() const { return _peers.size(); }
+
+    static SignalProxy *current() {
+        return _current;
+    }
+
+    /**@{*/
+    /**
+     * This method allows to send a signal only to a limited set of peers
+     * @param peers A list of peers that should receive it
+     * @param closure Code you want to execute within of that restricted environment
+     */
+    void restrictTargetPeers(QSet<Peer*> peers, std::function<void()> closure);
+    void restrictTargetPeers(Peer *peer, std::function<void()> closure) {
+        QSet<Peer*> set;
+        set.insert(peer);
+        restrictTargetPeers(set, std::move(closure));
+    }
+
+    //A better version, but only implemented on Qt5 if Initializer Lists exist
+#if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
+#ifdef Q_COMPILER_INITIALIZER_LISTS
+    void restrictTargetPeers(std::initializer_list<Peer*> peers, std::function<void()> closure) {
+        restrictTargetPeers(QSet<Peer*>(peers), std::move(closure));
+    }
+#endif
+#endif
+    /**}@*/
+
+    inline int peerCount() const { return _peerMap.size(); }
     QVariantList peerData();
 
     Peer *peerById(int peerId);
 
+    /**
+     * @return If handling a signal, the Peer from which the current signal originates
+     */
+    Peer *sourcePeer();
+    void setSourcePeer(Peer *sourcePeer);
+
+    /**
+     * @return If sending a signal, the Peer to which the current signal is directed
+     */
+    Peer *targetPeer();
+    void setTargetPeer(Peer *targetPeer);
+
 public slots:
     void detachObject(QObject *obj);
     void detachSignals(QObject *sender);
@@ -146,7 +188,6 @@ private:
 
     static void disconnectDevice(QIODevice *dev, const QString &reason = QString());
 
-    QSet<Peer *> _peers;
     QHash<int, Peer*> _peerMap;
 
     // containg a list of argtypes for fast access
@@ -172,6 +213,14 @@ private:
 
     int _lastPeerId = 0;
 
+    QSet<Peer *> _restrictedTargets;
+    bool _restrictMessageTarget = false;
+
+    Peer *_sourcePeer = nullptr;
+    Peer *_targetPeer = nullptr;
+
+    thread_local static SignalProxy *_current;
+
     friend class SignalRelay;
     friend class SyncableObject;
     friend class Peer;
@@ -235,5 +284,3 @@ private:
     QHash<QByteArray, int> _methodIds;
     QHash<int, int> _receiveMap; // if slot x is called then hand over the result to slot y
 };
-
-#endif