objects/dialog.go

101 lines
2.9 KiB
Go

package objects
import "image"
import "git.tebibyte.media/tomo/tomo"
import "git.tebibyte.media/tomo/tomo/event"
import "git.tebibyte.media/tomo/objects/layouts"
// DialogKind defines the semantic role of a dialog window.
type DialogKind int; const (
DialogInformation DialogKind = iota
DialogQuestion
DialogWarning
DialogError
)
// Dialog is a modal dialog window.
type Dialog struct {
tomo.Window
controlRow tomo.ContainerBox
}
type clickable interface {
OnClick (func ()) event.Cookie
}
// NewDialog creates a new dialog window given a dialog kind.
func NewDialog (kind DialogKind, parent tomo.Window, title, message string, options ...tomo.Object) (*Dialog, error) {
if title == "" {
switch kind {
case DialogInformation: title = "Information"
case DialogQuestion: title = "Question"
case DialogWarning: title = "Warning"
case DialogError: title = "Error"
}
}
dialog := &Dialog { }
if parent == nil {
window, err := tomo.NewWindow(image.Rectangle { })
if err != nil { return nil, err }
dialog.Window = window
} else {
window, err := parent.NewModal(image.Rectangle { })
if err != nil { return nil, err }
dialog.Window = window
}
var iconId tomo.Icon
switch kind {
case DialogInformation: iconId = tomo.IconDialogInformation
case DialogQuestion: iconId = tomo.IconDialogQuestion
case DialogWarning: iconId = tomo.IconDialogWarning
case DialogError: iconId = tomo.IconDialogError
}
dialog.SetTitle(title)
icon := NewIcon(iconId, tomo.IconSizeLarge)
messageText := NewLabel(message)
messageText.SetAttr(tomo.AAlign(tomo.AlignStart, tomo.AlignMiddle))
for _, option := range options {
if option, ok := option.(clickable); ok {
option.OnClick(dialog.Close)
}
}
dialog.controlRow = NewInnerContainer(layouts.ContractHorizontal, options...)
messageText.SetAttr(tomo.AAlign(tomo.AlignEnd, tomo.AlignEnd))
dialog.SetRoot(NewOuterContainer (
layouts.Column { true, false },
NewInnerContainer(layouts.ContractHorizontal, icon, messageText),
dialog.controlRow))
return dialog, nil
}
// NewDialogOk creates a new dialog window with an OK option.
func NewDialogOk (kind DialogKind, parent tomo.Window, title, message string, onOk func ()) (*Dialog, error) {
okButton := NewButton("OK")
okButton.SetIcon(tomo.IconDialogOkay)
okButton.OnClick(func () {
if onOk != nil { onOk() }
})
okButton.SetFocused(true)
return NewDialog(kind, parent, title, message, okButton)
}
// NewDialogOkCancel creates a new dialog window with OK and Cancel options.
func NewDialogOkCancel (kind DialogKind, parent tomo.Window, title, message string, onOk func ()) (*Dialog, error) {
cancelButton := NewButton("Cancel")
cancelButton.SetIcon(tomo.IconDialogCancel)
okButton := NewButton("OK")
okButton.SetIcon(tomo.IconDialogOkay)
okButton.OnClick(func () {
if onOk != nil { onOk() }
})
okButton.SetFocused(true)
return NewDialog(kind, parent, title, message, cancelButton, okButton)
}