PresenterTimer.hxx

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#ifndef INCLUDED_SDEXT_SOURCE_PRESENTER_PRESENTERTIMER_HXX
#define INCLUDED_SDEXT_SOURCE_PRESENTER_PRESENTERTIMER_HXX
 
#include <com/sun/star/awt/XCallback.hpp>
#include <com/sun/star/awt/XRequestCallback.hpp>
#include <cppuhelper/basemutex.hxx>
#include <cppuhelper/compbase.hxx>
#include <osl/time.h>
#include <rtl/ref.hxx>
#include <sal/types.h>
 
#include <functional>
#include <memory>
#include <mutex>
#include <vector>
 
namespace com::sun::star::uno { class XComponentContext; }
 
namespace sdext::presenter {
 
class PresenterTimer
{
public:
    typedef ::std::function<void (const TimeValue&)> Task;
 
    static const sal_Int32 NotAValidTaskId = 0;
 
    static sal_Int32 ScheduleRepeatedTask (
        const css::uno::Reference<css::uno::XComponentContext>& xContext,
        const Task& rTask,
        const sal_Int64 nFirst,
        const sal_Int64 nInterval);
 
    static void CancelTask (const sal_Int32 nTaskId);
};
 
typedef cppu::WeakComponentImplHelper<
    css::awt::XCallback
    > PresenterClockTimerInterfaceBase;
 
class PresenterClockTimer
    : protected ::cppu::BaseMutex,
      public PresenterClockTimerInterfaceBase
{
public:
    class Listener {
    public:
        virtual void TimeHasChanged (const oslDateTime& rCurrentTime) = 0;
 
    protected:
        ~Listener() {}
    };
    typedef std::shared_ptr<Listener> SharedListener;
 
    static ::rtl::Reference<PresenterClockTimer> Instance (
        const css::uno::Reference<css::uno::XComponentContext>& rxContext);
 
    void AddListener (const SharedListener& rListener);
    void RemoveListener (const SharedListener& rListener);
 
    static oslDateTime GetCurrentTime();
 
    // XCallback
 
    virtual void SAL_CALL notify (const css::uno::Any& rUserData) override;
 
private:
    static ::rtl::Reference<PresenterClockTimer> mpInstance;
 
    std::mutex maMutex;
    typedef ::std::vector<SharedListener> ListenerContainer;
    ListenerContainer maListeners;
    oslDateTime maDateTime;
    sal_Int32 mnTimerTaskId;
    bool mbIsCallbackPending;
    css::uno::Reference<css::awt::XRequestCallback> mxRequestCallback;
    const css::uno::Reference<css::uno::XComponentContext> m_xContext;
 
    PresenterClockTimer (
        const css::uno::Reference<css::uno::XComponentContext>& rxContext);
    virtual ~PresenterClockTimer() override;
 
    void CheckCurrentTime (const TimeValue& rCurrentTime);
};
 
} // end of namespace ::sdext::presenter
 
#endif
 
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