Make it possible to drag and drop multiple files

It is now possible to add multiple files before sending them to the processing queue.

kernel/items_to_convert.go

@@ -0,0 +1,151 @@
+package kernel
+
+import (
+	"fyne.io/fyne/v2"
+	"fyne.io/fyne/v2/canvas"
+	"fyne.io/fyne/v2/container"
+	"fyne.io/fyne/v2/theme"
+	"fyne.io/fyne/v2/widget"
+	"github.com/nicksnyder/go-i18n/v2/i18n"
+)
+
+type ItemsToConvertContract interface {
+	Add(file *File)
+	GetItems() map[int]ItemToConvertContract
+	AfterAddingQueue()
+}
+
+type ItemsToConvert struct {
+	nextId         int
+	items          map[int]ItemToConvertContract
+	itemsContainer *fyne.Container
+	ffplayService  FFplayContract
+	isAutoRemove   bool
+}
+
+func NewItemsToConvert(itemsContainer *fyne.Container, ffplayService FFplayContract, localizerService LocalizerContract) *ItemsToConvert {
+	containerForItems := container.NewVBox()
+	ItemsToConvert := &ItemsToConvert{
+		nextId:         0,
+		items:          map[int]ItemToConvertContract{},
+		itemsContainer: containerForItems,
+		ffplayService:  ffplayService,
+		isAutoRemove:   true,
+	}
+
+	line := canvas.NewLine(theme.Color(theme.ColorNameFocus))
+	line.StrokeWidth = 5
+	checkboxAutoRemove := widget.NewCheck(localizerService.GetMessage(&i18n.LocalizeConfig{
+		MessageID: "autoClearAfterAddingToQueue",
+	}), func(checked bool) {
+		ItemsToConvert.isAutoRemove = checked
+	})
+	checkboxAutoRemove.SetChecked(ItemsToConvert.isAutoRemove)
+	localizerService.AddChangeCallback("autoClearAfterAddingToQueue", func(text string) {
+		checkboxAutoRemove.Text = text
+	})
+
+	buttonClear := widget.NewButton(localizerService.GetMessage(&i18n.LocalizeConfig{
+		MessageID: "clearAll",
+	}), func() {
+		ItemsToConvert.clear()
+	})
+	buttonClear.Importance = widget.DangerImportance
+	localizerService.AddChangeCallback("clearAll", func(text string) {
+		buttonClear.Text = text
+	})
+
+	itemsContainer.Add(container.NewVBox(
+		container.NewPadded(),
+		container.NewBorder(nil, nil, nil, buttonClear, container.NewHScroll(checkboxAutoRemove)),
+		container.NewPadded(),
+		line,
+		container.NewPadded(),
+		containerForItems,
+	))
+
+	return ItemsToConvert
+}
+
+func (items *ItemsToConvert) Add(file *File) {
+	nextId := items.nextId
+	var content *fyne.Container
+	var buttonPlay *widget.Button
+
+	buttonPlay = widget.NewButtonWithIcon("", theme.Icon(theme.IconNameMediaPlay), func() {
+		buttonPlay.Disable()
+		go func() {
+			_ = items.ffplayService.Run(FFplaySetting{
+				PathToFile: file.Path,
+			})
+			fyne.Do(func() {
+				buttonPlay.Enable()
+			})
+		}()
+	})
+
+	buttonRemove := widget.NewButtonWithIcon("", theme.Icon(theme.IconNameDelete), func() {
+		items.itemsContainer.Remove(content)
+		items.itemsContainer.Refresh()
+		delete(items.items, nextId)
+	})
+	buttonRemove.Importance = widget.DangerImportance
+
+	content = container.NewVBox(
+		container.NewBorder(
+			nil,
+			nil,
+			buttonPlay,
+			buttonRemove,
+			container.NewHScroll(widget.NewLabel(file.Name)),
+		),
+		container.NewHScroll(widget.NewLabel(file.Path)),
+		container.NewPadded(),
+		canvas.NewLine(theme.Color(theme.ColorNameFocus)),
+		container.NewPadded(),
+	)
+
+	items.itemsContainer.Add(content)
+	items.items[nextId] = NewItemToConvert(file, content)
+	items.nextId++
+}
+
+func (items *ItemsToConvert) GetItems() map[int]ItemToConvertContract {
+	return items.items
+}
+
+func (items *ItemsToConvert) AfterAddingQueue() {
+	if items.isAutoRemove {
+		items.clear()
+	}
+}
+
+func (items *ItemsToConvert) clear() {
+	items.itemsContainer.RemoveAll()
+	items.items = map[int]ItemToConvertContract{}
+}
+
+type ItemToConvertContract interface {
+	GetFile() *File
+	GetContent() *fyne.Container
+}
+
+type ItemToConvert struct {
+	file    *File
+	content *fyne.Container
+}
+
+func NewItemToConvert(file *File, content *fyne.Container) *ItemToConvert {
+	return &ItemToConvert{
+		file:    file,
+		content: content,
+	}
+}
+
+func (item ItemToConvert) GetFile() *File {
+	return item.file
+}
+
+func (item ItemToConvert) GetContent() *fyne.Container {
+	return item.content
+}