wehub-resource-sync
88 lines
2.1 KiB
Go
88 lines
2.1 KiB
Go
package main
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import (
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"encoding/json"
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"os"
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"os/exec"
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"path/filepath"
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"reasonix/internal/config"
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)
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// DesktopZoomFactor persists the user's WebView2 zoom factor preference across
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// restarts. The frontend writes it; main.go reads it before wails.Run() to set
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// the Windows ZoomFactor option.
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type DesktopZoomFactor struct {
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ZoomFactor float64 `json:"zoomFactor"`
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}
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func zoomFactorPath() string {
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return filepath.Join(config.MemoryUserDir(), "desktop-zoom.json")
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}
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// loadZoomFactor reads the saved zoom factor. The bool is false when no saved
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// value exists (first launch, missing file, corrupt JSON). Callers should fall
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// back to 1.0 (no zoom) in that case.
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func loadZoomFactor() (float64, bool) {
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path := zoomFactorPath()
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data, err := readFileUTF8(path)
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if err != nil {
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return 0, false
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}
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var zf DesktopZoomFactor
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if err := json.Unmarshal(data, &zf); err != nil {
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return 0, false
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}
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if zf.ZoomFactor < 0.5 || zf.ZoomFactor > 2.0 {
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return 0, false
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}
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return zf.ZoomFactor, true
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}
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// GetDesktopZoomFactor returns the currently persisted restart zoom factor,
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// or 1.0 if none is saved.
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func (a *App) GetDesktopZoomFactor() float64 {
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zf, ok := loadZoomFactor()
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if !ok {
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return 1.0
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}
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return zf
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}
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// SetDesktopZoomFactor persists a zoom factor for the next launch. The value
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// is clamped to [0.5, 2.0] (50% – 200%) for safety.
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func (a *App) SetDesktopZoomFactor(factor float64) error {
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if factor < 0.5 {
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factor = 0.5
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}
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if factor > 2.0 {
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factor = 2.0
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}
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path := zoomFactorPath()
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if err := os.MkdirAll(filepath.Dir(path), 0o755); err != nil {
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return err
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}
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data, err := json.Marshal(DesktopZoomFactor{ZoomFactor: factor})
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if err != nil {
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return err
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}
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return os.WriteFile(path, data, 0o644)
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}
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// RestartApplication saves the zoom and restarts the whole process so the new
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// ZoomFactor takes effect in the WebView2 window options.
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func (a *App) RestartApplication() error {
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exe, err := os.Executable()
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if err != nil {
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return err
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}
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cmd := exec.Command(exe, os.Args[1:]...)
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cmd.Stdout = os.Stdout
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cmd.Stderr = os.Stderr
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if err := cmd.Start(); err != nil {
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return err
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}
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os.Exit(0)
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return nil
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}
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