153 lines
3.5 KiB
Go
153 lines
3.5 KiB
Go
package zenity
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// Errors
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type constError string
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func (e constError) Error() string { return string(e) }
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// Message errors
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const ErrExtraButton = constError("Extra button pressed.")
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// Options
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type options struct {
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// General options
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title string
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// File selection options
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filename string
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directory bool
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overwrite bool
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create bool
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hidden bool
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filters []FileFilter
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// Message options
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icon MessageIcon
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ok string
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cancel string
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extra string
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nowrap bool
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ellipsize bool
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defcancel bool
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}
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// Options are arguments passed to dialog functions to customize their behavior.
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type Option func(*options)
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func optsParse(options []Option) (res options) {
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for _, o := range options {
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o(&res)
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}
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return
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}
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// General options
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// Option to set the dialog title.
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func Title(title string) Option {
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return func(o *options) { o.title = title }
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}
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// File selection options
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// Option to set the filename.
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//
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// You can specify a file name, a directory path, or both.
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// Specifying a file name, makes it the default selected file.
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// Specifying a directory path, makes it the default dialog location.
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func Filename(filename string) Option {
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return func(o *options) { o.filename = filename }
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}
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// Option to activate directory-only selection.
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func Directory() Option {
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return func(o *options) { o.directory = true }
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}
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// Option to confirm file selection if filename already exists.
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func ConfirmOverwrite() Option {
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return func(o *options) { o.overwrite = true }
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}
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// Option to confirm file selection if filename does not yet exist (Windows only).
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func ConfirmCreate() Option {
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return func(o *options) { o.create = true }
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}
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// Option to show hidden files (Windows and macOS only).
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func ShowHidden() Option {
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return func(o *options) { o.hidden = true }
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}
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// FileFilter encapsulates a filename filter.
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//
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// macOS hides filename filters from the user,
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// and only supports filtering by extension (or "type").
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type FileFilter struct {
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Name string // display string that describes the filter (optional)
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Patterns []string // filter patterns for the display string
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}
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// Build option to set a filename filter.
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func (f FileFilter) Build() Option {
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return func(o *options) { o.filters = append(o.filters, f) }
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}
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// FileFilters is a list of filename filters.
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type FileFilters []FileFilter
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// Build option to set filename filters.
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func (f FileFilters) Build() Option {
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return func(o *options) { o.filters = append(o.filters, f...) }
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}
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// Message options
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// MessageIcon is the enumeration for message dialog icons.
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type MessageIcon int
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const (
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ErrorIcon MessageIcon = iota + 1
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WarningIcon
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InfoIcon
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QuestionIcon
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)
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// Option to set the dialog icon.
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func Icon(icon MessageIcon) Option {
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return func(o *options) { o.icon = icon }
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}
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// Option to set the label of the OK button.
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func OKLabel(ok string) Option {
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return func(o *options) { o.ok = ok }
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}
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// Option to set the label of the Cancel button.
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func CancelLabel(cancel string) Option {
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return func(o *options) { o.cancel = cancel }
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}
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// Option to add an extra button.
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func ExtraButton(extra string) Option {
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return func(o *options) { o.extra = extra }
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}
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// Option to disable enable text wrapping.
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func NoWrap() Option {
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return func(o *options) { o.nowrap = true }
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}
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// Option to enable ellipsizing in the dialog text.
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func Ellipsize() Option {
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return func(o *options) { o.ellipsize = true }
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}
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// Option to give Cancel button focus by default.
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func DefaultCancel() Option {
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return func(o *options) { o.defcancel = true }
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}
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