Calendar API.

date.go

@@ -6,10 +6,10 @@ import (
 
 // Calendar displays the calendar dialog.
 //
-// Returns zero on cancel.
-//
 // Valid options: Title, Width, Height, OKLabel, CancelLabel, ExtraButton,
-// Icon, Date.
+// Icon, DefaultDate.
+//
+// May return: ErrCanceled.
 func Calendar(text string, options ...Option) (time.Time, error) {
 	return calendar(text, applyOptions(options))
 }
@@ -17,6 +17,6 @@ func Calendar(text string, options ...Option) (time.Time, error) {
 // DefaultDate returns an Option to set the date.
 func DefaultDate(year int, month time.Month, day int) Option {
 	return funcOption(func(o *options) {
-		o.year, o.month, o.day = year, int(month), day
+		o.year, o.month, o.day = &year, month, day
 	})
 }

date_darwin.go

@@ -9,7 +9,18 @@ import (
 func calendar(text string, opts options) (time.Time, error) {
 	var date zenutil.Date
 
-	date.Date = time.Now().Unix()
+	year, month, day := time.Now().Date()
+	if time.January <= opts.month && opts.month <= time.December {
+		month = opts.month
+	}
+	if 1 <= opts.day && opts.day <= 31 {
+		day = opts.day
+	}
+	if opts.year != nil {
+		year = *opts.year
+	}
+	date.Date = time.Date(year, month, day, 0, 0, 0, 0, time.UTC).Unix()
+	date.OK, date.Cancel, date.Extra = getAlertButtons(opts)
 	date.Format = "yyyy-MM-dd"
 
 	if opts.title != nil {

date_unix.go

@@ -15,14 +15,14 @@ func calendar(text string, opts options) (time.Time, error) {
 	args = appendButtons(args, opts)
 	args = appendWidthHeight(args, opts)
 	args = appendIcon(args, opts)
-	if opts.day != 0 {
+	if time.January <= opts.month && opts.month <= time.December {
+		args = append(args, "--month", strconv.Itoa(int(opts.month)))
+	}
+	if 1 <= opts.day && opts.day <= 31 {
 		args = append(args, "--day", strconv.Itoa(opts.day))
 	}
-	if opts.month != 0 {
-		args = append(args, "--month", strconv.Itoa(opts.month))
-	}
-	if opts.year != 0 {
-		args = append(args, "--year", strconv.Itoa(opts.year))
+	if opts.year != nil {
+		args = append(args, "--year", strconv.Itoa(*opts.year))
 	}
 
 	out, err := zenutil.Run(opts.ctx, args)

internal/zenutil/osa_generated.go

@@ -34,10 +34,16 @@ date.setFrameSize(date.fittingSize)
 var alert=$.NSAlert.alloc.init
 alert.setAccessoryView(date)
 alert.setMessageText({{json .Text}})
-{{- if .Info}}alert.setInformativeText({{json .Info}}){{- end}}
-{{- range .Buttons}}alert.addButtonWithTitle([{{json .}}]){{end}}
+alert.addButtonWithTitle({{json .OK}})
+alert.addButtonWithTitle({{json .Cancel}}).keyEquivalent='\033'
+{{- if .Info}}
+alert.setInformativeText({{json .Info}})
+{{- end}}
+{{- if .Extra}}
+alert.addButtonWithTitle({{json .Extra}})
+{{- end}}
 var res=alert.runModal
-switch(res){case $.NSAlertThirdButtonReturn:$.puts({{json .Buttons}}[2])
+switch(res){case $.NSAlertThirdButtonReturn:$.puts({{json .Extra}})
 case $.NSAlertSecondButtonReturn:$.exit(1)}
 var fmt=$.NSDateFormatter.alloc.init
 fmt.dateFormat={{json .Format}}

internal/zenutil/osa_generator.go

@@ -4,6 +4,7 @@ package main
 
 import (
 	"bytes"
+	"encoding/json"
 	"log"
 	"os"
 	"path/filepath"
@@ -22,6 +23,7 @@ func main() {
 	}
 
 	var str strings.Builder
+	funcs := template.FuncMap{"json": json.Marshal}
 
 	for _, file := range files {
 		name := file.Name()
@@ -29,6 +31,10 @@ func main() {
 		if err != nil {
 			log.Fatal(err)
 		}
+		_, err = template.New(file.Name()).Funcs(funcs).Parse(string(data))
+		if err != nil {
+			log.Fatal(err)
+		}
 		data, err = minify(data)
 		if err != nil {
 			log.Fatal(err)

internal/zenutil/osascripts/date.gojs

@@ -15,13 +15,19 @@ date.setFrameSize(date.fittingSize)
 var alert = $.NSAlert.alloc.init
 alert.setAccessoryView(date)
 alert.setMessageText({{json .Text}})
-{{- if .Info}}alert.setInformativeText({{json .Info}}){{- end}}
-{{- range .Buttons}}alert.addButtonWithTitle([{{json .}}]){{end}}
+alert.addButtonWithTitle({{json .OK}})
+alert.addButtonWithTitle({{json .Cancel}}).keyEquivalent = '\033'
+{{- if .Info}}
+	alert.setInformativeText({{json .Info}})
+{{- end}}
+{{- if .Extra}}
+	alert.addButtonWithTitle({{json .Extra}})
+{{- end}}
 
 var res = alert.runModal
 switch (res) {
 case $.NSAlertThirdButtonReturn:
-	$.puts({{json .Buttons}}[2])
+	$.puts({{json .Extra}})
 case $.NSAlertSecondButtonReturn:
 	$.exit(1)
 }

internal/zenutil/run_darwin.go

@@ -190,6 +190,7 @@ type File struct {
 	Options   FileOptions
 }
 
+// FileOptions is internal.
 type FileOptions struct {
 	Prompt     *string  `json:"withPrompt,omitempty"`
 	Type       []string `json:"ofType,omitempty"`
@@ -223,5 +224,7 @@ type Date struct {
 	Text   string
 	Info   string
 	Format string
-	Buttons []string
+	OK     string
+	Cancel string
+	Extra  *string
 }

util_darwin.go

@@ -48,6 +48,16 @@ func getButtons(dialog, okcancel bool, opts options) (btns zenutil.DialogButtons
 	return
 }
 
+func getAlertButtons(opts options) (ok, cancel string, extra *string) {
+	if opts.okLabel == nil {
+		opts.okLabel = stringPtr("OK")
+	}
+	if opts.cancelLabel == nil {
+		opts.cancelLabel = stringPtr("Cancel")
+	}
+	return *opts.okLabel, *opts.cancelLabel, opts.extraButton
+}
+
 func (i DialogIcon) String() string {
 	switch i {
 	case ErrorIcon:

zenity.go

@@ -13,6 +13,7 @@ package zenity
 import (
 	"context"
 	"image/color"
+	"time"
 
 	"github.com/ncruces/zenity/internal/zenutil"
 )
@@ -54,7 +55,9 @@ type options struct {
 	defaultItems  []string
 
 	// Calendar options
-	year, month, day int
+	month time.Month
+	day   int
+	year  *int
 
 	// File selection options
 	directory        bool