Reworked notification code in system tray.

Added a base class and a possibility for the main dialogs and the plugins (derived from MainPage) to provide a notifier.

git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@5381 b45a01b8-16f6-495d-af2f-9b41ad6348cc

retroshare-gui/src/gui/common/UserNotify.h

@@ -0,0 +1,49 @@
+#ifndef USERNOTIFY_H
+#define USERNOTIFY_H
+
+#include <QObject>
+#include <QSystemTrayIcon>
+
+class QAction;
+
+class UserNotify : public QObject
+{
+	Q_OBJECT
+
+public:
+	UserNotify(QObject *parent = 0);
+
+	void initialize(QAction *mainAction);
+	void createIcons(QMenu *notifyMenu);
+
+	virtual bool hasSetting(QString &/*name*/) { return false; }
+	virtual bool notifyEnabled() { return false; }
+	virtual bool notifyCombined() { return false; }
+	virtual void setNotifyEnabled(bool /*enabled*/, bool /*combined*/) {}
+
+signals:
+	void countChanged();
+
+public slots:
+	void updateIcon();
+
+private slots:
+	void trayIconClicked(QSystemTrayIcon::ActivationReason e = QSystemTrayIcon::Trigger);
+
+private:
+	virtual QIcon getIcon() { return QIcon(); }
+	virtual QIcon getMainIcon(bool /*hasNew*/) { return QIcon(); }
+	virtual unsigned int getNewCount() { return 0; }
+
+	virtual QString getTrayMessage(bool plural);
+	virtual QString getNotifyMessage(bool plural);
+
+	virtual void iconClicked() {}
+
+	QAction *mMainIcon;
+	QSystemTrayIcon *mTrayIcon;
+	QAction *mNotifyIcon;
+	unsigned int newCount;
+};
+
+#endif // USERNOTIFY_H