added the mucNick() fn to plugins api (psi-im#625)

to retrieve own nick

Author: kssytsrk

plugins/include/contactinfoaccessinghost.h

@@ -22,6 +22,7 @@ class ContactInfoAccessingHost {
     virtual QString     statusMessage(int account, const QString &jid)                    = 0;
     virtual QStringList resources(int account, const QString &jid)                        = 0;
     virtual QString     realJid(int account, const QString &jid)                          = 0;
+    virtual QString     mucNick(int account, const QString &mucJid)                       = 0;
     virtual QStringList mucNicks(int account, const QString &mucJid)                      = 0;
     virtual bool        hasCaps(int account, const QString &jid, const QStringList &caps) = 0;
 };

src/pluginhost.cpp

@@ -1297,6 +1297,8 @@ QStringList PluginHost::resources(int account, const QString &jid) { return mana
 
 QString PluginHost::realJid(int account, const QString &jid) { return manager_->realJid(account, jid); }
 
+QString PluginHost::mucNick(int account, const QString &mucJid) { return manager_->mucNick(account, mucJid); }
+
 QStringList PluginHost::mucNicks(int account, const QString &mucJid) { return manager_->mucNicks(account, mucJid); }
 
 bool PluginHost::hasCaps(int account, const QString &jid, const QStringList &caps)

src/pluginhost.h

@@ -194,6 +194,7 @@ class PluginHost : public QObject,
     QString     statusMessage(int account, const QString &jid) override;
     QStringList resources(int account, const QString &jid) override;
     QString     realJid(int account, const QString &jid) override;
+    QString     mucNick(int account, const QString &mucJid) override;
     QStringList mucNicks(int account, const QString &mucJid) override;
     bool        hasCaps(int account, const QString &jid, const QStringList &caps) override;
 

src/pluginmanager.cpp

@@ -1198,6 +1198,18 @@ QString PluginManager::realJid(int account, const QString &jid) const
     return jid;
 }
 
+QString PluginManager::mucNick(int account, const QString &mucJid) const
+{
+    PsiAccount *acc = accountIds_.account(account);
+    if (acc) {
+      auto gcDlg = acc->findDialog<GCMainDlg *>(mucJid);
+      if (gcDlg) {
+        return gcDlg->nick();
+      }
+    }
+    return "";
+}
+
 QStringList PluginManager::mucNicks(int account, const QString &mucJid) const
 {
     PsiAccount *acc = accountIds_.account(account);

src/pluginmanager.h

@@ -187,6 +187,7 @@ class PluginManager : public QObject {
     QString     statusMessage(int account, const QString &jid) const;
     QStringList resources(int account, const QString &jid) const;
     QString     realJid(int account, const QString &jid) const;
+    QString     mucNick(int account, const QString &mucJid) const;
     QStringList mucNicks(int account, const QString &mucJid) const;
     bool        hasCaps(int account, const QString &jid, const QStringList &caps);