重写controller部分，修改search界面，添加歌词滚动效果，部分资源添加到bundle，修复拖动进度条时产生的噪音

gui/helper.go

@@ -1,14 +1,9 @@
 package gui
 
 import (
-	"AynaLivePlayer/model"
-	"bytes"
-	"errors"
 	"fyne.io/fyne/v2"
-	"fyne.io/fyne/v2/canvas"
 	"fyne.io/fyne/v2/container"
 	"fyne.io/fyne/v2/dialog"
-	"fyne.io/fyne/v2/storage"
 	"fyne.io/fyne/v2/widget"
 )
 
@@ -23,21 +18,6 @@ func newLabelWithWrapping(text string, wrapping fyne.TextWrap) *widget.Label {
 	return w
 }
 
-func createAsyncOnTapped(btn *widget.Button, f func()) func() {
-	return func() {
-		btn.Disable()
-		go func() {
-			f()
-			btn.Enable()
-		}()
-	}
-}
-
-func createAsyncButton(btn *widget.Button, tapped func()) *widget.Button {
-	btn.OnTapped = createAsyncOnTapped(btn, tapped)
-	return btn
-}
-
 type ContextMenuButton struct {
 	widget.Button
 	menu *fyne.Menu
@@ -55,57 +35,6 @@ func newContextMenuButton(label string, menu *fyne.Menu) *ContextMenuButton {
 	return b
 }
 
-type FixedSplitContainer struct {
-	*container.Split
-}
-
-func (f *FixedSplitContainer) Dragged(event *fyne.DragEvent) {
-	// do nothing
-}
-
-func (f *FixedSplitContainer) DragEnd() {
-	// do nothing
-}
-
-func newFixedSplitContainer(horizontal bool, leading, trailing fyne.CanvasObject) *FixedSplitContainer {
-	s := &container.Split{
-		Offset:     0.5, // Sensible default, can be overridden with SetOffset
-		Horizontal: horizontal,
-		Leading:    leading,
-		Trailing:   trailing,
-	}
-	fs := &FixedSplitContainer{
-		s,
-	}
-	fs.Split.BaseWidget.ExtendBaseWidget(s)
-	return fs
-}
-
-func newImageFromPlayerPicture(picture model.Picture) (*canvas.Image, error) {
-	if picture.Data != nil {
-		img := canvas.NewImageFromReader(bytes.NewReader(picture.Data), "cover")
-		// return an error when img is nil
-		if img == nil {
-			return nil, errors.New("fail to read image")
-		}
-		return img, nil
-	} else {
-		uri, err := storage.ParseURI(picture.Url)
-		if err != nil {
-			return nil, err
-		}
-		if uri == nil {
-			return nil, errors.New("fail to fail url")
-		}
-		img := canvas.NewImageFromURI(uri)
-		if img == nil {
-			// bug fix, return a new error to indicate fail to read an image
-			return nil, errors.New("fail to read image")
-		}
-		return img, nil
-	}
-}
-
 func showDialogIfError(err error) {
 	if err != nil {
 		dialog.ShowError(err, MainWindow)