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LibreOffice 5.1 SDK C/C++ API Reference
weakref.hxx
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19 #ifndef INCLUDED_CPPUHELPER_WEAKREF_HXX
20 #define INCLUDED_CPPUHELPER_WEAKREF_HXX
21 
22 #include <sal/config.h>
23 
24 #include <cstddef>
25 
27 #include <com/sun/star/uno/XInterface.hpp>
29 
30 
31 namespace com
32 {
33 namespace sun
34 {
35 namespace star
36 {
37 namespace uno
38 {
39 
40 class OWeakRefListener;
41 
46 {
47 public:
51  : m_pImpl( NULL )
52  {}
53 
58  WeakReferenceHelper( const WeakReferenceHelper & rWeakRef );
64  WeakReferenceHelper( const css::uno::Reference< css::uno::XInterface > & xInt );
68 
73  WeakReferenceHelper & SAL_CALL operator = ( const WeakReferenceHelper & rWeakRef );
74 
81  WeakReferenceHelper & SAL_CALL operator = (
82  const css::uno::Reference< css::uno::XInterface > & xInt );
83 
89  inline bool SAL_CALL operator == ( const WeakReferenceHelper & rObj ) const
90  { return (get() == rObj.get()); }
91 
96  css::uno::Reference< css::uno::XInterface > SAL_CALL get() const;
101  inline SAL_CALL operator Reference< XInterface > () const
102  { return get(); }
103 
108  void SAL_CALL clear();
109 
110 protected:
112  OWeakRefListener * m_pImpl;
114 };
115 
121 template< class interface_type >
123 {
124 public:
127  inline WeakReference()
129  {}
130 
136  : WeakReferenceHelper( rRef )
137  {}
138 
147  WeakReference & SAL_CALL operator = (
148  const css::uno::Reference< interface_type > & xInt )
149  { WeakReferenceHelper::operator=(xInt); return *this; }
150 
155  inline SAL_CALL operator Reference< interface_type > () const
156  { return Reference< interface_type >::query( get() ); }
157 };
158 
159 }
160 }
161 }
162 }
163 
164 #endif
165 
166 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
bool operator==(const Any &rAny, const C &value)
Template equality operator: compares set value of left side any to right side value.
Definition: Any.hxx:573
WeakReferenceHelper()
Default ctor.
Definition: weakref.hxx:50
#define SAL_WARN_UNUSED
Annotate classes where a compiler should warn if an instance is unused.
Definition: types.h:612
WeakReference(const Reference< interface_type > &rRef)
Copy ctor.
Definition: weakref.hxx:135
Definition: types.h:389
The WeakReferenceHelper holds a weak reference to an object.
Definition: weakref.hxx:45
static SAL_WARN_UNUSED_RESULT Reference< interface_type > query(const BaseReference &rRef)
Queries given interface reference for type interface_type.
Definition: Reference.hxx:346
css::uno::Reference< css::uno::XInterface > get() const
Gets a hard reference to the object.
#define CPPUHELPER_DLLPUBLIC
Definition: cppuhelperdllapi.h:28
WeakReference()
Default ctor.
Definition: weakref.hxx:127
Template reference class for interface type derived from BaseReference.
Definition: unotype.hxx:39
WeakReferenceHelper & operator=(const WeakReferenceHelper &rWeakRef)
Releases this reference and takes over rWeakRef.
The WeakReference<> holds a weak reference to an object.
Definition: weakref.hxx:122