Wrap the current mobile code in the new repository scheme

internal/driver/gomobile/driver.go

@@ -414,5 +414,7 @@ func (d *mobileDriver) Device() fyne.Device {
 func NewGoMobileDriver() fyne.Driver {
 	d := new(mobileDriver)
 	d.animation = &animation.Runner{}
+
+	registerRepository(d)
 	return d
 }

internal/driver/gomobile/file_android.go

@@ -18,6 +18,7 @@ import (
 	"os"
 	"unsafe"
 
+	"fyne.io/fyne/storage/repository"
 	"github.com/fyne-io/mobile/app"
 )
 
@@ -90,3 +91,9 @@ func nativeFileOpen(f *fileOpen) (io.ReadCloser, error) {
 	stream.stream = ret
 	return stream, nil
 }
+
+func registerRepository(d *mobileDriver) {
+	repo := &mobileFileRepo{driver: d}
+	repository.Register("file", repo)
+	repository.Register("content", repo)
+}

internal/driver/gomobile/file_desktop.go

@@ -6,6 +6,9 @@ import (
 	"errors"
 	"io"
 	"os"
+
+	intRepo "fyne.io/fyne/internal/repository"
+	"fyne.io/fyne/storage/repository"
 )
 
 func nativeFileOpen(f *fileOpen) (io.ReadCloser, error) {
@@ -15,3 +18,7 @@ func nativeFileOpen(f *fileOpen) (io.ReadCloser, error) {
 
 	return os.Open(f.uri.String()[7:])
 }
+
+func registerRepository(d *mobileDriver) {
+	repository.Register("file", intRepo.NewFileRepository("file"))
+}

internal/driver/gomobile/file_ios.go

@@ -15,6 +15,8 @@ import "C"
 import (
 	"io"
 	"unsafe"
+
+	"fyne.io/fyne/storage/repository"
 )
 
 type secureReadCloser struct {
@@ -74,3 +76,8 @@ func nativeFileOpen(f *fileOpen) (io.ReadCloser, error) {
 	fileStruct := &secureReadCloser{url: url, closer: f.done}
 	return fileStruct, nil
 }
+
+func registerRepository(d *mobileDriver) {
+	repo := &mobileFileRepo{driver: d}
+	repository.Register("file", repo)
+}

internal/driver/gomobile/repository.go

@@ -0,0 +1,34 @@
+package gomobile
+
+import (
+	"fyne.io/fyne"
+)
+
+type mobileFileRepo struct {
+	driver *mobileDriver
+}
+
+func (m *mobileFileRepo) Exists(u fyne.URI) (bool, error) {
+	return true, nil // TODO check a file exists
+}
+
+func (m *mobileFileRepo) Reader(u fyne.URI) (fyne.URIReadCloser, error) {
+	return m.driver.FileReaderForURI(u)
+}
+
+func (m *mobileFileRepo) CanRead(u fyne.URI) (bool, error) {
+	return true, nil // TODO check a file can be read
+}
+
+func (m *mobileFileRepo) Destroy(string) {
+}
+
+func (m *mobileFileRepo) CanList(u fyne.URI) (bool, error) {
+	return canListURI(u), nil
+}
+
+func (m *mobileFileRepo) List(u fyne.URI) ([]fyne.URI, error) {
+	return listURI(u)
+}
+
+// TODO add write support (not yet supported on mobile)