60 lines
1.0 KiB
Go
60 lines
1.0 KiB
Go
package app
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import (
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"os"
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"path/filepath"
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"sync"
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"fyne.io/fyne/v2"
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)
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var once sync.Once
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func (a *fyneApp) cachedIconPath() string {
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if a.Icon() == nil {
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return ""
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}
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dirPath := filepath.Join(rootCacheDir(), a.UniqueID())
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filePath := filepath.Join(dirPath, "icon.png")
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once.Do(func() {
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err := a.saveIconToCache(dirPath, filePath)
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if err != nil {
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filePath = ""
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}
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})
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return filePath
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}
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func rootCacheDir() string {
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desktopCache, _ := os.UserCacheDir()
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return filepath.Join(desktopCache, "fyne")
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}
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func (a *fyneApp) saveIconToCache(dirPath, filePath string) error {
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err := os.MkdirAll(dirPath, 0700)
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if err != nil {
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fyne.LogError("Unable to create application cache directory", err)
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return err
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}
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file, err := os.Create(filePath)
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if err != nil {
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fyne.LogError("Unable to create icon file", err)
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return err
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}
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defer file.Close()
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if icon := a.Icon(); icon != nil {
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_, err = file.Write(icon.Content())
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if err != nil {
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fyne.LogError("Unable to write icon contents", err)
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return err
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}
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}
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return nil
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}
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