Initial community commit

Src/Winamp/Metadata.cpp

@@ -0,0 +1,117 @@
+#include "main.h"
+#include "Metadata.h"
+#include "api.h"
+#include <api/service/waservicefactory.h>
+
+/**
+ ** Author: Ben Allison
+ ** original date: April 10, 2006
+ */
+Metadata::~Metadata()
+{
+	for ( wchar_t *l_key : keys )
+		free( l_key );
+
+	keys.clear();
+}
+
+int Metadata::GetExtendedFileInfo(const wchar_t *filename, const wchar_t *tag, wchar_t *data, size_t dataLength)
+{
+	// benski> old way CUT: return in_get_extended_fileinfoW(filename, tag, data, dataLength);
+/*
+	int result = 0; // failure
+	svc_metaTag *metaTag = GetMetaTagObject(filename, METATAG_ALL, 0, 0);
+	if (metaTag)
+	{
+		if (metaTag->metaTag_open(filename) == METATAG_SUCCESS)
+			metaTag->getMetaData(tag, reinterpret_cast<__int8 *>(data), dataLength*sizeof(wchar_t), METATYPE_STRING);
+
+		metaTag->metaTag_close();
+	}
+	else // TODO: we could get rid of this as soon as we make extendedMetaTag (see TODO at end of file)
+		*/
+	return in_get_extended_fileinfoW(filename, tag, data, dataLength);
+
+	//return !!(result == METATAG_SUCCESS);
+}
+
+int Metadata::SetExtendedFileInfo(const wchar_t *filename, const wchar_t *tag, const wchar_t *data)
+{
+	return in_set_extended_fileinfoW(filename, tag, const_cast<wchar_t *>(data));
+}
+
+int Metadata::WriteExtendedFileInfo(const wchar_t *filename)
+{
+	return in_write_extended_fileinfo();
+}
+
+inline static bool InList(const GUID guid, GUID *exclude, int numExcludes)
+{
+	if (!exclude)
+		return false;
+	while (numExcludes--)
+	{
+		if (guid == exclude[numExcludes])
+			return true;
+	}
+	return false;
+}
+
+svc_metaTag *Metadata::GetMetaTagObject(const wchar_t *filename, int flags, GUID *exclude, int numExcludes)
+{
+	int i = 0;
+	waServiceFactory *sf = 0;
+	do
+	{
+		sf = WASABI_API_SVC->service_enumService(WaSvc::METATAG, i++);
+		if (sf)
+		{
+			svc_metaTag *metaTag = static_cast<svc_metaTag *>(sf->getInterface());
+			if (metaTag
+			    && !InList(metaTag->getGUID(), exclude, numExcludes)
+			    && flags & metaTag->getFlags()
+			    && metaTag->isOurFile(filename))
+				return metaTag;
+
+			sf->releaseInterface(metaTag);
+		}
+
+	}
+	while (sf);
+	return 0;
+}
+
+svc_metaTag *Metadata::GetMetaTagObjectByGUID(const GUID metaTagGuid)
+{
+	waServiceFactory *sf = WASABI_API_SVC->service_getServiceByGuid(metaTagGuid);
+	if (sf && sf->getServiceType() == WaSvc::METATAG) // just to be safe
+		return static_cast<svc_metaTag *>(sf->getInterface());
+
+	return NULL;
+}
+
+uint32_t Metadata::GenerateKey(const wchar_t *field)
+{
+	Nullsoft::Utility::AutoLock keyLock(keyGuard);
+	// TODO this is hella slow but it'll get the ball rolling on implementing this
+	for (size_t i=0;i!=keys.size();i++)
+	{
+		if (!_wcsicmp(field, keys[i]))
+			return (uint32_t)i;
+	}
+
+	keys.push_back(_wcsdup(field));
+	return (uint32_t)keys.size()-1;
+}
+// TODO: extendedMetaTag, derived from svc_metaTag, that uses getExtendedFileInfo
+
+#define CBCLASS Metadata
+START_DISPATCH;
+CB(API_METADATA_GETEXTENDEDFILEINFO, GetExtendedFileInfo)
+CB(API_METADATA_SETEXTENDEDFILEINFO, SetExtendedFileInfo)
+CB(API_METADATA_WRITEEXTENDEDFILEINFO, WriteExtendedFileInfo)
+CB(API_METADATA_GETMETATAGOBJECT, GetMetaTagObject)
+CB(API_METADATA_GETMETATAGOBJECTBYGUID, GetMetaTagObjectByGUID)
+CB(API_METADATA_GENERATEKEY, GenerateKey)
+END_DISPATCH;
+#undef CBCLASS