Wire up initial support for file and folder dialogs

dialog/file_notunix.go

@@ -0,0 +1,11 @@
+//go:build (!linux && !openbsd && !freebsd && !netbsd) || android || wasm || js
+
+package dialog
+
+func fileOpenOSOverride(*FileDialog) bool {
+	return false
+}
+
+func fileSaveOSOverride(*FileDialog) bool {
+	return false
+}

dialog/file_unix.go

@@ -37,11 +37,3 @@ func isHidden(file fyne.URI) bool {
 func hideFile(filename string) error {
 	return nil
 }
-
-func fileOpenOSOverride(*FileDialog) bool {
-	return false
-}
-
-func fileSaveOSOverride(*FileDialog) bool {
-	return false
-}

dialog/file_xdg.go

@@ -12,6 +12,7 @@ import (
 
 	"fyne.io/fyne/v2"
 	"fyne.io/fyne/v2/storage"
+	"github.com/rymdport/portal/filechooser"
 
 	"golang.org/x/sys/execabs"
 )
@@ -74,3 +75,61 @@ func getFavoriteLocations() (map[string]fyne.ListableURI, error) {
 
 	return favoriteLocations, err
 }
+
+func fileOpenOSOverride(d *FileDialog) bool {
+	go func() {
+		callback, folder := d.callback.(func(fyne.ListableURI, error))
+		options := &filechooser.OpenOptions{Modal: true, Directory: folder}
+
+		uris, err := filechooser.OpenFile("", "Open File", options)
+		if !folder {
+			callback := d.callback.(func(fyne.URIReadCloser, error))
+			if err != nil {
+				callback(nil, err)
+				return
+			}
+
+			uri, err := storage.ParseURI(uris[0])
+			if err != nil {
+				callback(nil, err)
+				return
+			}
+
+			callback(storage.Reader(uri))
+			return
+		}
+		if err != nil {
+			callback(nil, err)
+		}
+
+		uri, err := storage.ParseURI(uris[0])
+		if err != nil {
+			callback(nil, err)
+			return
+		}
+
+		callback(storage.ListerForURI(uri))
+	}()
+
+	return true
+}
+
+func fileSaveOSOverride(d *FileDialog) bool {
+	go func() {
+		callback := d.callback.(func(fyne.URIWriteCloser, error))
+		uris, err := filechooser.SaveFile("", "Open File", &filechooser.SaveSingleOptions{Modal: true})
+		if err != nil {
+			callback(nil, err)
+			return
+		}
+
+		uri, err := storage.ParseURI(uris[0])
+		if err != nil {
+			callback(nil, err)
+			return
+		}
+
+		callback(storage.Writer(uri))
+	}()
+	return true
+}