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generic-capability-filter.h

00001 
00023 #ifndef _TelepathyQt4_generic_capability_filter_h_HEADER_GUARD_
00024 #define _TelepathyQt4_generic_capability_filter_h_HEADER_GUARD_
00025 
00026 #ifndef IN_TELEPATHY_QT4_HEADER
00027 #error IN_TELEPATHY_QT4_HEADER
00028 #endif
00029 
00030 #include <TelepathyQt4/ConnectionCapabilities>
00031 #include <TelepathyQt4/Filter>
00032 #include <TelepathyQt4/Types>
00033 
00034 namespace Tp
00035 {
00036 
00037 template <class T>
00038 class GenericCapabilityFilter : public Filter<T>
00039 {
00040 public:
00041     static SharedPtr<GenericCapabilityFilter<T> > create(
00042             const RequestableChannelClassSpecList &rccSpecs = RequestableChannelClassSpecList())
00043     {
00044         return SharedPtr<GenericCapabilityFilter<T> >(new GenericCapabilityFilter<T>(
00045                     rccSpecs));
00046     }
00047 
00048     inline virtual ~GenericCapabilityFilter() { }
00049 
00050     inline virtual bool isValid() const { return true; }
00051 
00052     inline virtual bool matches(const SharedPtr<T> &t) const
00053     {
00054         bool supportedRcc;
00055         RequestableChannelClassSpecList objectRccSpecs = t->capabilities().allClassSpecs();
00056         Q_FOREACH (const RequestableChannelClassSpec &filterRccSpec, mFilter) {
00057             supportedRcc = false;
00058 
00059             Q_FOREACH (const RequestableChannelClassSpec &objectRccSpec, objectRccSpecs) {
00060                 /* check if fixed properties match */
00061                 if (filterRccSpec.fixedProperties() == objectRccSpec.fixedProperties()) {
00062                     supportedRcc = true;
00063 
00064                     /* check if all allowed properties in the filter RCC
00065                      * are in the object RCC allowed properties */
00066                     Q_FOREACH (const QString &value, filterRccSpec.allowedProperties()) {
00067                         if (!objectRccSpec.allowsProperty(value)) {
00068                             /* one of the properties in the filter RCC
00069                              * allowed properties is not in the object RCC
00070                              * allowed properties */
00071                             supportedRcc = false;
00072                             break;
00073                         }
00074                     }
00075 
00076                     /* this RCC is supported, no need to check anymore */
00077                     if (supportedRcc) {
00078                         break;
00079                     }
00080                 }
00081             }
00082 
00083             /* one of the filter RCC is not supported, this object
00084              * won't match filter */
00085             if (!supportedRcc) {
00086                 return false;
00087             }
00088         }
00089 
00090         return true;
00091     }
00092 
00093     inline RequestableChannelClassSpecList filter() const { return mFilter; }
00094 
00095     inline void addRequestableChannelClassSubset(const RequestableChannelClassSpec &rccSpec)
00096     {
00097         mFilter.append(rccSpec.bareClass());
00098     }
00099 
00100     inline void setRequestableChannelClassesSubset(const RequestableChannelClassSpecList &rccSpecs)
00101     {
00102         mFilter = rccSpecs.bareClasses();
00103     }
00104 
00105 private:
00106     GenericCapabilityFilter(const RequestableChannelClassSpecList &rccSpecs)
00107         : Filter<T>(), mFilter(rccSpecs) { }
00108 
00109     RequestableChannelClassSpecList mFilter;
00110 };
00111 
00112 } // Tp
00113 
00114 #endif

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Telepathy-Qt4 0.6.5