60 lines
1.9 KiB
Go
60 lines
1.9 KiB
Go
// +build !windows,!darwin
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// 19 august 2014
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package ui
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import (
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"unsafe"
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)
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// #include "gtk_unix.h"
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// extern void our_openfile_response_callback(GtkDialog *, gint, gpointer);
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// /* because cgo doesn't like ... */
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// static inline GtkWidget *newOpenFileDialog(GtkWindow *parent)
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// {
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// return gtk_file_chooser_dialog_new(NULL, /* default title */
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// parent,
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// GTK_FILE_CHOOSER_ACTION_OPEN,
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// GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
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// GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
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// NULL);
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// }
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import "C"
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func (w *window) openFile(f func(filename string)) {
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widget := C.newOpenFileDialog(w.window)
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window := (*C.GtkWindow)(unsafe.Pointer(widget))
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dialog := (*C.GtkDialog)(unsafe.Pointer(widget))
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fc := (*C.GtkFileChooser)(unsafe.Pointer(widget))
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// non-local filenames are relevant mainly to GIO where we can open *anything*, not to Go os.File; see https://twitter.com/braket/status/506142849654870016
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C.gtk_file_chooser_set_local_only(fc, C.TRUE)
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C.gtk_file_chooser_set_select_multiple(fc, C.FALSE)
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C.gtk_file_chooser_set_show_hidden(fc, C.TRUE)
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C.gtk_window_set_modal(window, C.TRUE)
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g_signal_connect(
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C.gpointer(unsafe.Pointer(dialog)),
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"response",
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C.GCallback(C.our_openfile_response_callback),
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C.gpointer(unsafe.Pointer(&f)))
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C.gtk_widget_show_all(widget)
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}
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//export our_openfile_response_callback
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func our_openfile_response_callback(dialog *C.GtkDialog, response C.gint, data C.gpointer) {
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f := (*func(string))(unsafe.Pointer(data))
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if response != C.GTK_RESPONSE_ACCEPT {
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(*f)("")
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C.gtk_widget_destroy((*C.GtkWidget)(unsafe.Pointer(dialog)))
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return
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}
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filename := C.gtk_file_chooser_get_filename((*C.GtkFileChooser)(unsafe.Pointer(dialog)))
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if filename == nil {
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panic("chosen filename NULL in OpenFile()")
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}
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realfilename := fromgstr(filename)
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C.g_free(C.gpointer(unsafe.Pointer(filename)))
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C.gtk_widget_destroy((*C.GtkWidget)(unsafe.Pointer(dialog)))
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(*f)(realfilename)
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}
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