94 lines
2.6 KiB
Go
94 lines
2.6 KiB
Go
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package fyne
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import (
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"fmt"
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"io"
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)
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// URIReadCloser represents a cross platform data stream from a file or provider of data.
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// It may refer to an item on a filesystem or data in another application that we have access to.
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type URIReadCloser interface {
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io.ReadCloser
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URI() URI
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}
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// URIWriteCloser represents a cross platform data writer for a file resource.
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// This will normally refer to a local file resource.
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type URIWriteCloser interface {
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io.WriteCloser
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URI() URI
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}
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// URI represents the identifier of a resource on a target system. This
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// resource may be a file or another data source such as an app or file sharing
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// system.
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//
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// In general, it is expected that URI implementations follow IETF RFC3896.
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// Implementations are highly recommended to utilize net/url to implement URI
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// parsing methods, especially Scheme(), AUthority(), Path(), Query(), and
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// Fragment().
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type URI interface {
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fmt.Stringer
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// Extension should return the file extension of the resource
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// (including the dot) referenced by the URI. For example, the
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// Extension() of 'file://foo/bar.baz' is '.baz'. May return an
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// empty string if the referenced resource has none.
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Extension() string
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// Name should return the base name of the item referenced by the URI.
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// For example, the Name() of 'file://foo/bar.baz' is 'bar.baz'.
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Name() string
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// MimeType should return the content type of the resource referenced
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// by the URI. The returned string should be in the format described
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// by Section 5 of RFC2045 ("Content-Type Header Field").
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MimeType() string
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// Scheme should return the URI scheme of the URI as defined by IETF
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// RFC3986. For example, the Scheme() of 'file://foo/bar.baz` is
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// 'file'.
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//
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// Scheme should always return the scheme in all lower-case characters.
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Scheme() string
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// Authority should return the URI authority, as defined by IETF
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// RFC3986.
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//
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// NOTE: the RFC3986 can be obtained by combining the User and Host
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// Fields of net/url's URL structure. Consult IETF RFC3986, section
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// 3.2, pp. 17.
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//
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// Since: 2.0
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Authority() string
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// Path should return the URI path, as defined by IETF RFC3986.
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//
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// Since: 2.0
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Path() string
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// Query should return the URI query, as defined by IETF RFC3986.
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//
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// Since: 2.0
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Query() string
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// Fragment should return the URI fragment, as defined by IETF
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// RFC3986.
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//
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// Since: 2.0
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Fragment() string
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}
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// ListableURI represents a URI that can have child items, most commonly a
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// directory on disk in the native filesystem.
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//
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// Since: 1.4
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type ListableURI interface {
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URI
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// List returns a list of child URIs of this URI.
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List() ([]URI, error)
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}
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