nf2 wrote:
Perhaps this would be an interesting feature for "DVFS-light", because
its "ls" function returns the file-info as key/value map. Therefore
returning file-metadata would be quite easy (if requested in the {OPTS}
of "ls").
Sure. There are a lot of apps that would beneift from having the
metadata easily accessible.
I should perhaps define a generic method for this so any metadata item
can be retrieved for a file or all files in a folder.
IE
GetMetaDataForFile
input DBUS_TYPE_STRING s (the file uri)
input DBUS_TYPE_STRING s (the metadata type name)
output DBUS_TYPE_STRING s (the metadata value)
SetMetaDataForFile
input DBUS_TYPE_STRING s (the file uri)
input DBUS_TYPE_STRING s (the metadata type name)
input DBUS_TYPE_STRING s (the metadata value)
GetAllMetaDataForFile
input DBUS_TYPE_STRING s (the file uri)
output DBUS_TYPE_DICT a{ss} (the metadata as key,value pairs)
GetMetaDataForFilesInFolder
input DBUS_TYPE_STRING s (the folder uri)
input DBUS_TYPE_STRING s (the metadata type name)
output DBUS_TYPE_DICT a{ss} (the metadata as filename, metadata)
I should also define a set of common metadata type names like:
Artist
Author
Album
Bitrate
Samplerate
Genre
Encoding
Title
Subject
Comments
Emblems
KeyWords
MimeType
ThumbnailPath
WordCount
You might also want to have a search method for VFS or apps so
SearchMetaData
input DBUS_TYPE_STRING s (the search string)
output DBUS_TYPE_ARRAY as (array of matching file uris)
The search string here should be freetext as in google/beagle but also
could include some of the metadata type names (enclosed in square
brackets). EG "[Author]=Jamie" would return all files with Jamie as
author while just "jamie" would return anything that contained the word
jamie anywhere (whether its in the metadata or in the indexed contents
of a file).
Im not sure if we need notification of metadata changes for
VFS/Filemanagers though that could easily be added too.
--
Mr Jamie McCracken
http://www.advogato.org/person/jamiemcc/
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