104 lines
2.0 KiB
Go
104 lines
2.0 KiB
Go
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package test
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import (
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"fmt"
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"io"
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"os"
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"path/filepath"
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"fyne.io/fyne/v2"
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"fyne.io/fyne/v2/storage"
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)
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type file struct {
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*os.File
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path string
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}
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type directory struct {
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fyne.URI
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}
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// Declare conformity to the ListableURI interface
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var _ fyne.ListableURI = (*directory)(nil)
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func (f *file) Open() (io.ReadCloser, error) {
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return os.Open(f.path)
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}
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func (f *file) Save() (io.WriteCloser, error) {
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return os.Open(f.path)
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}
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func (f *file) ReadOnly() bool {
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return true
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}
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func (f *file) Name() string {
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return filepath.Base(f.path)
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}
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func (f *file) URI() fyne.URI {
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return storage.NewFileURI(f.path)
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}
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func openFile(uri fyne.URI, create bool) (*file, error) {
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if uri.Scheme() != "file" {
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return nil, fmt.Errorf("unsupported URL protocol")
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}
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path := uri.String()[7:]
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f, err := os.Open(path)
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if err != nil && create {
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f, err = os.Create(path)
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}
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return &file{File: f, path: path}, err
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}
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func (d *testDriver) FileReaderForURI(uri fyne.URI) (fyne.URIReadCloser, error) {
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return openFile(uri, false)
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}
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func (d *testDriver) FileWriterForURI(uri fyne.URI) (fyne.URIWriteCloser, error) {
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return openFile(uri, true)
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}
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func (d *testDriver) ListerForURI(uri fyne.URI) (fyne.ListableURI, error) {
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if uri.Scheme() != "file" {
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return nil, fmt.Errorf("unsupported URL protocol")
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}
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path := uri.String()[len(uri.Scheme())+3 : len(uri.String())]
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s, err := os.Stat(path)
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if err != nil {
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return nil, err
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}
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if !s.IsDir() {
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return nil, fmt.Errorf("path '%s' is not a directory, cannot convert to listable URI", path)
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}
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return &directory{URI: uri}, nil
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}
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func (d *directory) List() ([]fyne.URI, error) {
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if d.Scheme() != "file" {
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return nil, fmt.Errorf("unsupported URL protocol")
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}
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path := d.String()[len(d.Scheme())+3 : len(d.String())]
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files, err := os.ReadDir(path)
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if err != nil {
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return nil, err
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}
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urilist := []fyne.URI{}
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for _, f := range files {
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uri := storage.NewFileURI(filepath.Join(path, f.Name()))
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urilist = append(urilist, uri)
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}
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return urilist, nil
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}
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