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// +build !windows,!darwin,!plan9
// 7 february 2014
package ui
import (
"unsafe"
)
// #include "gtk_unix.h"
// /* because cgo seems to choke on ... */
// /* parent will be NULL if there is no parent, so this is fine */
// GtkWidget *gtkNewMsgBox(GtkWindow *parent, GtkMessageType type, GtkButtonsType buttons, char *title, char *text)
// {
// GtkWidget *k;
//
// k = gtk_message_dialog_new(parent, GTK_DIALOG_MODAL, type, buttons, "%s", (gchar *) title);
// if (text != NULL)
// gtk_message_dialog_format_secondary_text((GtkMessageDialog *) k, "%s", (gchar *) text);
// return k;
// }
import "C"
func _msgBox(parent *Window, primarytext string, secondarytext string, msgtype C.GtkMessageType, buttons C.GtkButtonsType) (result chan int) {
result = make(chan int)
go func() {
ret := make(chan C.gint)
defer close(ret)
uitask <- func() {
var pwin *C.GtkWindow = nil
// to implement parent, we need to put the GtkMessageDialog into a new window group along with parent
// a GtkWindow can only be part of one group
// so we use this to save the parent window group (if there is one) and store the new window group
// after showing the message box, we restore the previous window group, so future parent == dialogWindow can work properly
// thanks to pbor and mclasen in irc.gimp.net/#gtk+
var prevgroup *C.GtkWindowGroup = nil
var newgroup *C.GtkWindowGroup
if parent != dialogWindow {
pwin = togtkwindow(parent.sysData.widget)
// we can't remove a window from the "default window group"; otherwise this throws up Gtk-CRITICAL warnings
if C.gtk_window_has_group(pwin) != C.FALSE {
prevgroup = C.gtk_window_get_group(pwin)
C.gtk_window_group_remove_window(prevgroup, pwin)
}
newgroup = C.gtk_window_group_new()
C.gtk_window_group_add_window(newgroup, pwin)
}
cprimarytext := C.CString(primarytext)
defer C.free(unsafe.Pointer(cprimarytext))
csecondarytext := (*C.char)(nil)
if secondarytext != "" {
csecondarytext = C.CString(secondarytext)
defer C.free(unsafe.Pointer(csecondarytext))
}
box := C.gtkNewMsgBox(pwin, msgtype, buttons, cprimarytext, csecondarytext)
response := C.gtk_dialog_run((*C.GtkDialog)(unsafe.Pointer(box)))
C.gtk_widget_destroy(box)
if parent != dialogWindow {
C.gtk_window_group_remove_window(newgroup, pwin)
C.g_object_unref(C.gpointer(unsafe.Pointer(newgroup))) // free the group
if prevgroup != nil {
C.gtk_window_group_add_window(prevgroup, pwin)
} // otherwise it'll go back into the default group on its own
}
ret <- response
}
result <- int(<-ret)
}()
return result
}
func (w *Window) msgBox(primarytext string, secondarytext string) (done chan struct{}) {
done = make(chan struct{})
go func() {
<-_msgBox(w, primarytext, secondarytext, C.GtkMessageType(C.GTK_MESSAGE_OTHER), C.GtkButtonsType(C.GTK_BUTTONS_OK))
done <- struct{}{}
}()
return done
}
func (w *Window) msgBoxError(primarytext string, secondarytext string) (done chan struct{}) {
done = make(chan struct{})
go func() {
<-_msgBox(w, primarytext, secondarytext, C.GtkMessageType(C.GTK_MESSAGE_ERROR), C.GtkButtonsType(C.GTK_BUTTONS_OK))
done <- struct{}{}
}()
return done
}
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