Add drag-and-drop support for single file selection

Implemented functionality to handle single file drag-and-drop in the UI, including error handling for multiple files and directories. Updated localization files to support new messages related to drag-and-drop usage and errors.

convertor/view/conversion.go

@@ -14,6 +14,7 @@ import (
 	"git.kor-elf.net/kor-elf/gui-for-ffmpeg/setting"
 	"github.com/nicksnyder/go-i18n/v2/i18n"
 	"image/color"
+	"os"
 	"path/filepath"
 )
 
@@ -195,6 +196,10 @@ func newFileForConversion(app kernel.AppContract) *fileForConversion {
 
 	buttonTitle := app.GetLocalizerService().GetMessage(&i18n.LocalizeConfig{
 		MessageID: "choose",
+	}) + "\n\r\n\r" + app.GetLocalizerService().GetMessage(&i18n.LocalizeConfig{
+		MessageID: "or",
+	}) + "\n\r\n\r" + app.GetLocalizerService().GetMessage(&i18n.LocalizeConfig{
+		MessageID: "dragAndDrop1File",
 	})
 
 	fileForConversion.message = canvas.NewText("", color.RGBA{R: 255, G: 0, B: 0, A: 255})
@@ -225,10 +230,54 @@ func newFileForConversion(app kernel.AppContract) *fileForConversion {
 			fileForConversion.eventSelectFile(nil)
 
 			listableURI := storage.NewFileURI(filepath.Dir(r.URI().Path()))
-			locationURI, err = storage.ListerForURI(listableURI)
+			locationURI, _ = storage.ListerForURI(listableURI)
 		}, locationURI)
 	})
 
+	app.GetWindow().SetOnDropped(func(position fyne.Position, uris []fyne.URI) {
+		if len(uris) == 0 {
+			return
+		}
+
+		if len(uris) > 1 {
+			fileForConversion.message.Text = app.GetLocalizerService().GetMessage(&i18n.LocalizeConfig{
+				MessageID: "errorDragAndDrop1File",
+			})
+			setStringErrorStyle(fileForConversion.message)
+			fileForConversion.eventSelectFile(errors.New(fileForConversion.message.Text))
+			return
+		}
+
+		uri := uris[0]
+		info, err := os.Stat(uri.Path())
+		if err != nil {
+			fileForConversion.message.Text = err.Error()
+			setStringErrorStyle(fileForConversion.message)
+			fileForConversion.eventSelectFile(err)
+			return
+		}
+		if info.IsDir() {
+			fileForConversion.message.Text = app.GetLocalizerService().GetMessage(&i18n.LocalizeConfig{
+				MessageID: "errorIsFolder",
+			})
+			setStringErrorStyle(fileForConversion.message)
+			fileForConversion.eventSelectFile(errors.New(fileForConversion.message.Text))
+			return
+		}
+
+		fileForConversion.file.Path = uri.Path()
+		fileForConversion.file.Name = uri.Name()
+		fileForConversion.file.Ext = uri.Extension()
+
+		fileForConversion.message.Text = uri.Path()
+		setStringSuccessStyle(fileForConversion.message)
+
+		fileForConversion.eventSelectFile(nil)
+
+		listableURI := storage.NewFileURI(filepath.Dir(uri.Path()))
+		locationURI, _ = storage.ListerForURI(listableURI)
+	})
+
 	return fileForConversion
 }
 

kernel/window.go

@@ -12,6 +12,7 @@ type WindowContract interface {
 	SetMainMenu(menu *fyne.MainMenu)
 	NewFileOpen(callback func(fyne.URIReadCloser, error), location fyne.ListableURI) *dialog.FileDialog
 	NewFolderOpen(callback func(fyne.ListableURI, error), location fyne.ListableURI) *dialog.FileDialog
+	SetOnDropped(callback func(position fyne.Position, uris []fyne.URI))
 	ShowAndRun()
 	GetLayout() LayoutContract
 }
@@ -80,3 +81,7 @@ func (w Window) ShowAndRun() {
 func (w Window) GetLayout() LayoutContract {
 	return w.layout
 }
+
+func (w Window) SetOnDropped(callback func(position fyne.Position, uris []fyne.URI)) {
+	w.windowFyne.SetOnDropped(callback)
+}

languages/active.en.toml

@@ -62,6 +62,10 @@ other = "Will be downloaded from the site:"
 hash = "sha1-55f87f114628fa2d5d8e67d1e1cda22c0e4f9271"
 other = "Downloading..."
 
+[dragAndDrop1File]
+hash = "sha1-7259670822df1cc92ef5f06ed3c0e9407746975a"
+other = "drag and drop 1 file"
+
 [encoderGroupAudio]
 hash = "sha1-24321cb5400df96be8f3e2131918bebdb3a01bba"
 other = "Audio"
@@ -218,6 +222,10 @@ other = "Couldn't convert video"
 hash = "sha1-531abc3f0d12727e542df6e5a22de91098380fc1"
 other = "could not create file 'database' in folder 'data'"
 
+[errorDragAndDrop1File]
+hash = "sha1-a8edb5cbd622f3ce4ec07a2377e22ec5fad4491b"
+other = "You can only drag and drop 1 file."
+
 [errorFFmpeg]
 hash = "sha1-ccf0b95c0d1b392dc215258d917eb4e5d0b88ed0"
 other = "this is not FFmpeg"
@@ -234,6 +242,10 @@ other = "this is not FFprobe"
 hash = "sha1-da7b37d7df3fafbd153665b13888413d52b24c17"
 other = "Failed to determine FFprobe version"
 
+[errorIsFolder]
+hash = "sha1-f937d090b6e320957514d850657cdf2f911dc6aa"
+other = "You can only drag and drop a file"
+
 [errorQueue]
 hash = "sha1-72aecd9ad85642d84d62dbbf3cf70953c5f696c7"
 other = "Error"
@@ -294,6 +306,10 @@ other = "License information"
 hash = "sha1-359fff328717c05104e51a2d29f05bf1875d26b7"
 other = "Licenses from other products used in the program"
 
+[or]
+hash = "sha1-30bb0333ca1583110e4ced513b5d2455b86f529b"
+other = "or"
+
 [parameterCheckbox]
 hash = "sha1-9e35221d454870996fd51d576249cf47d1784a3c"
 other = "Enable option"

languages/active.kk.toml

@@ -62,6 +62,10 @@ other = "Сайттан жүктеледі:"
 hash = "sha1-55f87f114628fa2d5d8e67d1e1cda22c0e4f9271"
 other = "Жүктеп алынуда..."
 
+[dragAndDrop1File]
+hash = "sha1-7259670822df1cc92ef5f06ed3c0e9407746975a"
+other = "1 файлды сүйреңіз"
+
 [encoderGroupAudio]
 hash = "sha1-24321cb5400df96be8f3e2131918bebdb3a01bba"
 other = "Аудио"
@@ -218,6 +222,10 @@ other = "Бейнені түрлендіру мүмкін болмады"
 hash = "sha1-531abc3f0d12727e542df6e5a22de91098380fc1"
 other = "'data' қалтасында 'database' файлын жасау мүмкін болмады"
 
+[errorDragAndDrop1File]
+hash = "sha1-a8edb5cbd622f3ce4ec07a2377e22ec5fad4491b"
+other = "Тек 1 файлды сүйреп апаруға болады"
+
 [errorFFmpeg]
 hash = "sha1-ccf0b95c0d1b392dc215258d917eb4e5d0b88ed0"
 other = "бұл FFmpeg емес"
@@ -234,6 +242,10 @@ other = "бұл FFprobe емес"
 hash = "sha1-da7b37d7df3fafbd153665b13888413d52b24c17"
 other = "FFprobe нұсқасын анықтау мүмкін болмады"
 
+[errorIsFolder]
+hash = "sha1-f937d090b6e320957514d850657cdf2f911dc6aa"
+other = "Тек файлды сүйреп апаруға болады"
+
 [errorQueue]
 hash = "sha1-72aecd9ad85642d84d62dbbf3cf70953c5f696c7"
 other = "Қате"
@@ -294,6 +306,10 @@ other = "Лицензия туралы ақпарат"
 hash = "sha1-359fff328717c05104e51a2d29f05bf1875d26b7"
 other = "Бағдарламада пайдаланылатын басқа өнімдердің лицензиялары"
 
+[or]
+hash = "sha1-30bb0333ca1583110e4ced513b5d2455b86f529b"
+other = "немесе"
+
 [parameterCheckbox]
 hash = "sha1-9e35221d454870996fd51d576249cf47d1784a3c"
 other = "Опцияны қосу"

languages/active.ru.toml

@@ -14,6 +14,7 @@ converterVideoFilesTitle = "Конвертер видео, аудио и кар
 download = "Скачать"
 downloadFFmpegFromSite = "Будет скачано с сайта:"
 downloadRun = "Скачивается..."
+dragAndDrop1File = "перетащить 1 файл"
 encoderGroupAudio = "Аудио"
 encoderGroupImage = "Картинки"
 encoderGroupVideo = "Видео"
@@ -53,10 +54,12 @@ encoder_xbm = "XBM (X BitMap) image"
 error = "Произошла ошибка!"
 errorConverter = "не смогли отконвертировать видео"
 errorDatabase = "не смогли создать файл 'database' в папке 'data'"
+errorDragAndDrop1File = "Можно перетащить только 1 файл"
 errorFFmpeg = "это не FFmpeg"
 errorFFmpegVersion = "Не смогли определить версию FFmpeg"
 errorFFprobe = "это не FFprobe"
 errorFFprobeVersion = "Не смогли определить версию FFprobe"
+errorIsFolder = "Можно перетаскивать только файл"
 errorQueue = "Ошибка"
 errorSelectedEncoder = "Конвертер не выбран"
 errorSelectedFolderSave = "Папка для сохранения не выбрана!"
@@ -72,6 +75,7 @@ languageSelectionFormHead = "Переключить язык"
 languageSelectionHead = "Выберите язык"
 licenseLink = "Сведения о лицензии"
 licenseLinkOther = "Лицензии от других продуктов, которые используются в программе"
+or = "или"
 parameterCheckbox = "Включить параметр"
 pathToFfmpeg = "Путь к FFmpeg:"
 pathToFfprobe = "Путь к FFprobe:"