Add directory selection for saving converted files

Introduce logic and UI for selecting and persisting a directory to save converted files. Extend existing components with directory selection buttons, message updates, and storage preferences.

internal/gui/view/convertor.go

@@ -17,8 +17,18 @@ import (
 	"path/filepath"
 )
 
-func Convertor(window window.WindowContract, addFileForConversion func(file ffmpeg.File)) fyne.CanvasObject {
-	form := newFormConvertor(window, addFileForConversion)
+func Convertor(
+	window window.WindowContract,
+	addFileForConversion func(file ffmpeg.File),
+	directoryForSavingPath string,
+	directoryForSaving func(path string),
+) fyne.CanvasObject {
+	form := newFormConvertor(
+		window,
+		addFileForConversion,
+		directoryForSavingPath,
+		directoryForSaving,
+	)
 
 	converterVideoFilesTitle := lang.L("converterVideoFilesTitle")
 	return widget.NewCard(converterVideoFilesTitle, "", container.NewVScroll(form.getForm()))
@@ -30,9 +40,15 @@ type formConvertor struct {
 
 	window               window.WindowContract
 	addFileForConversion func(file ffmpeg.File)
+	directoryForSaving   func(path string)
 }
 
-func newFormConvertor(window window.WindowContract, addFileForConversion func(file ffmpeg.File)) *formConvertor {
+func newFormConvertor(
+	window window.WindowContract,
+	addFileForConversion func(file ffmpeg.File),
+	directoryForSavingPath string,
+	directoryForSaving func(path string),
+) *formConvertor {
 	f := widget.NewForm()
 	f.SubmitText = lang.L("converterVideoFilesSubmitTitle")
 
@@ -40,9 +56,11 @@ func newFormConvertor(window window.WindowContract, addFileForConversion func(fi
 		form:                 f,
 		window:               window,
 		addFileForConversion: addFileForConversion,
+		directoryForSaving:   directoryForSaving,
 	}
 
 	fileForConversion := formConvertor.newFileForConversion()
+	directoryForSavingButton := formConvertor.newDirectoryForSaving(directoryForSavingPath)
 
 	items := []*widget.FormItem{
 		{
@@ -52,6 +70,14 @@ func newFormConvertor(window window.WindowContract, addFileForConversion func(fi
 		{
 			Widget: container.NewHScroll(fileForConversion.message),
 		},
+
+		{
+			Text:   lang.L("buttonForSelectedDirTitle"),
+			Widget: directoryForSavingButton.button,
+		},
+		{
+			Widget: container.NewHScroll(directoryForSavingButton.message),
+		},
 	}
 	formConvertor.form.Items = items
 	formConvertor.items = items
@@ -161,6 +187,57 @@ func (f *formConvertor) newFileForConversion() *fileForConversion {
 	return fileForConversion
 }
 
+type directoryForSaving struct {
+	button  *widget.Button
+	message *canvas.Text
+	path    string
+}
+
+func (f *formConvertor) newDirectoryForSaving(directoryForSavingPath string) *directoryForSaving {
+	directoryForSaving := &directoryForSaving{
+		path: "",
+	}
+
+	directoryForSaving.message = canvas.NewText("", color.RGBA{R: 255, G: 0, B: 0, A: 255})
+	directoryForSaving.message.TextSize = 16
+	directoryForSaving.message.TextStyle = fyne.TextStyle{Bold: true}
+
+	buttonTitle := lang.L("choose")
+
+	locationURI, err := utils.PathToListableURI(directoryForSavingPath)
+	if err == nil {
+		directoryForSaving.path = locationURI.Path()
+		directoryForSaving.message.Text = locationURI.Path()
+		utils.SetStringSuccessStyle(directoryForSaving.message)
+	}
+
+	directoryForSaving.button = widget.NewButton(buttonTitle, func() {
+		f.window.NewFolderOpen(func(r fyne.ListableURI, err error) {
+			if err != nil {
+				directoryForSaving.message.Text = err.Error()
+				utils.SetStringErrorStyle(directoryForSaving.message)
+				return
+			}
+			if r == nil {
+				return
+			}
+
+			directoryForSaving.path = r.Path()
+
+			directoryForSaving.message.Text = r.Path()
+			utils.SetStringSuccessStyle(directoryForSaving.message)
+			locationURI, err = storage.ListerForURI(r)
+
+			if err == nil {
+				f.directoryForSaving(locationURI.Path())
+			}
+
+		}, locationURI)
+	})
+
+	return directoryForSaving
+}
+
 func (c *fileForConversion) addChangeCallback(callback func(err error)) {
 	c.changeCallbacks[len(c.changeCallbacks)] = callback
 }