66 lines
2.9 KiB
C++
66 lines
2.9 KiB
C++
#pragma once
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#include "foundation/foundation.h"
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#include "ifc_metadata.h"
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#include "ifc_metadata_editor.h"
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#include "nx/nxuri.h"
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// {7DBF780E-78B6-436C-A188-864AF6859D87}
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static const GUID metadata_service_type_guid =
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{ 0x7dbf780e, 0x78b6, 0x436c, { 0xa1, 0x88, 0x86, 0x4a, 0xf6, 0x85, 0x9d, 0x87 } };
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class svc_metadata : public Wasabi2::Dispatchable
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{
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protected:
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svc_metadata() : Dispatchable(DISPATCHABLE_VERSION) {}
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~svc_metadata() {}
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public:
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static GUID GetServiceType() { return metadata_service_type_guid; }
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// to make the implementation more flexible, you need to NXStringRelease on the extension you get (i.e. this function follows Apple's "Create" rule)
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int EnumerateExtensions(unsigned int index, nx_string_t *extension) { return MetadataService_EnumerateExtensions(index, extension); }
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int CreateMetadata(nx_uri_t filename, ifc_metadata **metadata) {return MetadataService_CreateMetadata(filename, metadata); }
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int CreateMetadataEditor(nx_uri_t filename, ifc_metadata_editor **metadata) { return MetadataService_CreateMetadataEditor(filename, metadata); }
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int DeserializeMetadata(nx_data_t data, ifc_metadata **metadata) { return MetadataService_DeserializeMetadata(data, metadata); }
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int CreateMetadata(unsigned int pass, nx_uri_t filename, ifc_metadata **metadata)
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{
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if (dispatchable_version == 0)
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{
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if (pass == 0)
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return MetadataService_CreateMetadata(filename, metadata);
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else
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return NErr_False;
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}
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else
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return MetadataService_CreateMetadata(pass, filename, metadata);
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}
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int CreateMetadataEditor(unsigned int pass, nx_uri_t filename, ifc_metadata_editor **metadata)
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{
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if (dispatchable_version == 0)
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{
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if (pass == 0)
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return MetadataService_CreateMetadataEditor(filename, metadata);
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else
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return NErr_False;
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}
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else
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return MetadataService_CreateMetadataEditor(pass, filename, metadata);
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}
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enum
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{
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DISPATCHABLE_VERSION=1,
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};
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private:
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// implementation note: to make the implementation more flexible, you need to NXStringRetain on the extension you pass back (i.e. follow Apple's "Create" rule)
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virtual int WASABICALL MetadataService_EnumerateExtensions(unsigned int index, nx_string_t *extension)=0;
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/* these two no longer have to be implemented */
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virtual int WASABICALL MetadataService_CreateMetadata(nx_uri_t filename, ifc_metadata **metadata) { return MetadataService_CreateMetadata(0, filename, metadata); }
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virtual int WASABICALL MetadataService_CreateMetadataEditor(nx_uri_t filename, ifc_metadata_editor **metadata) { return MetadataService_CreateMetadataEditor(0, filename, metadata); }
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virtual int WASABICALL MetadataService_DeserializeMetadata(nx_data_t data, ifc_metadata **metadata) { return NErr_NotImplemented; }
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virtual int WASABICALL MetadataService_CreateMetadata(unsigned int pass, nx_uri_t filename, ifc_metadata **metadata)=0;
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virtual int WASABICALL MetadataService_CreateMetadataEditor(unsigned int pass, nx_uri_t filename, ifc_metadata_editor **metadata)=0;
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};
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