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46 // This file is not part of the Qt API. It exists purely as an
47 // implementation detail. This header file may change from version to
48 // version without notice, or even be removed.
52 #ifndef QPatternist_ResourceDelegator_p_H
53 #define QPatternist_ResourceDelegator_p_H
58 #include "qdeviceresourceloader_p.h"
66 * @short Delegates to another ResourceLoader, but in case a URI is in an
67 * exception list, it delegates to a different loader.
69 * This is used for handling device variables, since when a device variable
70 * is rebound, a resource loader needs to carry that binding, while the
71 * resource loader for the other query remains as is.
74 * @author Frans Englich <frans.englich@nokia.com>
76 class ResourceDelegator : public DeviceResourceLoader
79 ResourceDelegator(const QSet<QUrl> &needsOverride,
80 const ResourceLoader::Ptr &parentLoader,
81 const ResourceLoader::Ptr &forDeviceLoader) : m_needsOverride(needsOverride)
82 , m_parentLoader(parentLoader)
83 , m_forDeviceLoader(forDeviceLoader)
86 Q_ASSERT(m_parentLoader);
89 virtual bool isUnparsedTextAvailable(const QUrl &uri,
90 const QString &encoding);
91 virtual ItemType::Ptr announceUnparsedText(const QUrl &uri);
92 virtual Item openUnparsedText(const QUrl &uri,
93 const QString &encoding,
94 const ReportContext::Ptr &context,
95 const SourceLocationReflection *const where);
96 virtual Item openDocument(const QUrl &uri,
97 const ReportContext::Ptr &context);
98 virtual SequenceType::Ptr announceDocument(const QUrl &uri, const Usage usageHint);
99 virtual bool isDocumentAvailable(const QUrl &uri);
100 virtual Item::Iterator::Ptr openCollection(const QUrl &uri);
101 virtual SequenceType::Ptr announceCollection(const QUrl &uri);
104 * Returns the union of the deviceURIs() that ResourceDelegator's two
105 * resource loaders has.
107 virtual QSet<QUrl> deviceURIs() const;
110 const QSet<QUrl> m_needsOverride;
111 const ResourceLoader::Ptr m_parentLoader;
112 const ResourceDelegator::Ptr m_forDeviceLoader;