gui-for-ffmpeg/src/convertor/view.go

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package convertor
import (
"errors"
"fyne.io/fyne/v2"
"fyne.io/fyne/v2/canvas"
"fyne.io/fyne/v2/container"
"fyne.io/fyne/v2/dialog"
"fyne.io/fyne/v2/widget"
"image/color"
)
type ViewContract interface {
Main(
runConvert func(setting HandleConvertSetting, progressbar *widget.ProgressBar) error,
)
}
type View struct {
w fyne.Window
}
type HandleConvertSetting struct {
VideoFileInput *File
DirectoryForSave string
OverwriteOutputFiles bool
}
type enableFormConversionStruct struct {
fileVideoForConversion *widget.Button
buttonForSelectedDir *widget.Button
form *widget.Form
}
func NewView(w fyne.Window) *View {
return &View{w}
}
func (v View) Main(
runConvert func(setting HandleConvertSetting, progressbar *widget.ProgressBar) error,
) {
form := &widget.Form{}
conversionMessage := canvas.NewText("", color.RGBA{255, 0, 0, 255})
conversionMessage.TextSize = 16
conversionMessage.TextStyle = fyne.TextStyle{Bold: true}
progress := widget.NewProgressBar()
fileVideoForConversion, fileVideoForConversionMessage, fileInput := v.getButtonFileVideoForConversion(form, progress, conversionMessage)
buttonForSelectedDir, buttonForSelectedDirMessage, pathToSaveDirectory := v.getButtonForSelectingDirectoryForSaving()
isOverwriteOutputFiles := false
checkboxOverwriteOutputFiles := widget.NewCheck("Разрешить перезаписать файл", func(b bool) {
isOverwriteOutputFiles = b
})
form.Items = []*widget.FormItem{
{Text: "Файл для ковертации:", Widget: fileVideoForConversion},
{Widget: fileVideoForConversionMessage},
{Text: "Папка куда будет сохраняться:", Widget: buttonForSelectedDir},
{Widget: buttonForSelectedDirMessage},
{Widget: checkboxOverwriteOutputFiles},
}
form.SubmitText = "Конвертировать"
enableFormConversionStruct := enableFormConversionStruct{
fileVideoForConversion: fileVideoForConversion,
buttonForSelectedDir: buttonForSelectedDir,
form: form,
}
form.OnSubmit = func() {
if len(*pathToSaveDirectory) == 0 {
showConversionMessage(conversionMessage, errors.New("Не выбрали папку для сохранения!"))
enableFormConversion(enableFormConversionStruct)
return
}
conversionMessage.Text = ""
fileVideoForConversion.Disable()
buttonForSelectedDir.Disable()
form.Disable()
setting := HandleConvertSetting{
VideoFileInput: fileInput,
DirectoryForSave: *pathToSaveDirectory,
OverwriteOutputFiles: isOverwriteOutputFiles,
}
err := runConvert(setting, progress)
if err != nil {
showConversionMessage(conversionMessage, err)
enableFormConversion(enableFormConversionStruct)
return
}
enableFormConversion(enableFormConversionStruct)
}
v.w.SetContent(widget.NewCard("Конвертор видео файлов в mp4", "", container.NewVBox(form, conversionMessage, progress)))
form.Disable()
}
func (v View) getButtonFileVideoForConversion(form *widget.Form, progress *widget.ProgressBar, conversionMessage *canvas.Text) (*widget.Button, *canvas.Text, *File) {
fileInput := &File{}
fileVideoForConversionMessage := canvas.NewText("", color.RGBA{255, 0, 0, 255})
fileVideoForConversionMessage.TextSize = 16
fileVideoForConversionMessage.TextStyle = fyne.TextStyle{Bold: true}
button := widget.NewButton("выбрать", func() {
fileDialog := dialog.NewFileOpen(
func(r fyne.URIReadCloser, err error) {
if err != nil {
fileVideoForConversionMessage.Text = err.Error()
setStringErrorStyle(fileVideoForConversionMessage)
return
}
if r == nil {
return
}
fileInput.Path = r.URI().Path()
fileInput.Name = r.URI().Name()
fileInput.Ext = r.URI().Extension()
fileVideoForConversionMessage.Text = r.URI().Path()
setStringSuccessStyle(fileVideoForConversionMessage)
form.Enable()
progress.Hide()
conversionMessage.Text = ""
}, v.w)
fileDialog.Show()
})
return button, fileVideoForConversionMessage, fileInput
}
func (v View) getButtonForSelectingDirectoryForSaving() (button *widget.Button, buttonMessage *canvas.Text, dirPath *string) {
buttonMessage = canvas.NewText("", color.RGBA{255, 0, 0, 255})
buttonMessage.TextSize = 16
buttonMessage.TextStyle = fyne.TextStyle{Bold: true}
path := ""
dirPath = &path
button = widget.NewButton("выбрать", func() {
fileDialog := dialog.NewFolderOpen(
func(r fyne.ListableURI, err error) {
if err != nil {
buttonMessage.Text = err.Error()
setStringErrorStyle(buttonMessage)
return
}
if r == nil {
return
}
path = r.Path()
buttonMessage.Text = r.Path()
setStringSuccessStyle(buttonMessage)
}, v.w)
fileDialog.Show()
})
return
}
func setStringErrorStyle(text *canvas.Text) {
text.Color = color.RGBA{255, 0, 0, 255}
text.Refresh()
}
func setStringSuccessStyle(text *canvas.Text) {
text.Color = color.RGBA{49, 127, 114, 255}
text.Refresh()
}
func showConversionMessage(conversionMessage *canvas.Text, err error) {
conversionMessage.Text = err.Error()
setStringErrorStyle(conversionMessage)
}
func enableFormConversion(enableFormConversionStruct enableFormConversionStruct) {
enableFormConversionStruct.fileVideoForConversion.Enable()
enableFormConversionStruct.buttonForSelectedDir.Enable()
enableFormConversionStruct.form.Enable()
}