76 lines
1.6 KiB
Go
76 lines
1.6 KiB
Go
//go:build !android && !ios && !mobile && !js && !wasm && !test_web_driver
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// +build !android,!ios,!mobile,!js,!wasm,!test_web_driver
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package app
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import (
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"os"
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"path/filepath"
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"fyne.io/fyne/v2"
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"github.com/fsnotify/fsnotify"
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)
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func watchFileAddTarget(watcher *fsnotify.Watcher, path string) {
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dir := filepath.Dir(path)
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ensureDirExists(dir)
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err := watcher.Add(dir)
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if err != nil {
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fyne.LogError("Settings watch error:", err)
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}
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}
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func ensureDirExists(dir string) {
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if stat, err := os.Stat(dir); err == nil && stat.IsDir() {
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return
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}
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err := os.MkdirAll(dir, 0700)
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if err != nil {
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fyne.LogError("Unable to create settings storage:", err)
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}
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}
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func watchFile(path string, callback func()) *fsnotify.Watcher {
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watcher, err := fsnotify.NewWatcher()
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if err != nil {
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fyne.LogError("Failed to watch settings file:", err)
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return nil
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}
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go func() {
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for event := range watcher.Events {
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if event.Op.Has(fsnotify.Remove) { // if it was deleted then watch again
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watcher.Remove(path) // fsnotify returns false positives, see https://github.com/fsnotify/fsnotify/issues/268
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watchFileAddTarget(watcher, path)
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} else {
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callback()
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}
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}
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err = watcher.Close()
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if err != nil {
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fyne.LogError("Settings un-watch error:", err)
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}
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}()
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watchFileAddTarget(watcher, path)
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return watcher
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}
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func (s *settings) watchSettings() {
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s.watcher = watchFile(s.schema.StoragePath(), s.fileChanged)
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watchTheme()
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}
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func (s *settings) stopWatching() {
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if s.watcher == nil {
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return
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}
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s.watcher.(*fsnotify.Watcher).Close() // fsnotify returns false positives, see https://github.com/fsnotify/fsnotify/issues/268
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}
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