message_darwin.go

// +build darwin,!linux,!windows,!js

package dlgs

import (
	"os/exec"
	"strings"
	"syscall"
)

// MessageBox displays message box and ok button without icon.
func MessageBox(title, text string) (bool, error) {
	return osaDialog(title, text, "")
}

// Info displays information dialog.
func Info(title, text string) (bool, error) {
	return osaDialog(title, text, "note")
}

// Warning displays warning dialog.
func Warning(title, text string) (bool, error) {
	return osaDialog(title, text, "caution")
}

// Error displays error dialog.
func Error(title, text string) (bool, error) {
	return osaDialog(title, text, "stop")
}

// Question displays question dialog.
func Question(title, text string, defaultCancel bool) (bool, error) {
	btn := "Yes"
	if defaultCancel {
		btn = "No"
	}

	out, err := osaExecute(`set T to button returned of (display dialog ` + osaEscapeString(text) + ` with title ` + osaEscapeString(title) + ` buttons {"No", "Yes"} default button ` + osaEscapeString(btn) + `)`)
	if err != nil {
		if exitError, ok := err.(*exec.ExitError); ok {
			ws := exitError.Sys().(syscall.WaitStatus)
			return ws.ExitStatus() == 0, nil
		}
	}

	ret := false
	if strings.TrimSpace(out) == "Yes" {
		ret = true
	}

	return ret, err
}

// osaDialog displays dialog.
func osaDialog(title, text, icon string) (bool, error) {
	iconScript := ""
	if icon != "" {
		iconScript = ` with icon ` + icon
	}
	out, err := osaExecute(`display dialog ` + osaEscapeString(text) + ` with title ` + osaEscapeString(title) + ` buttons {"OK"} default button "OK"` + iconScript)
	if err != nil {
		if exitError, ok := err.(*exec.ExitError); ok {
			ws := exitError.Sys().(syscall.WaitStatus)
			return ws.ExitStatus() == 0, nil
		}
	}

	ret := false
	if strings.TrimSpace(out) == "OK" {
		ret = true
	}

	return ret, err
}