Update method names called by key-press on binary widget

Since 87806105f07d the corresponding methods have been renamed in BinaryMixin.

Closes #13844
(grafted from 6bb90cfd5794153f8194254fd866fffe0a57489a)

--HG--
branch : 6.0

sao/src/view/form.js

@@ -4080,11 +4080,15 @@ function eval_pyson(value){
         key_press: function(evt) {
             var editable = !this.text.prop('readonly');
             if (evt.which == Sao.common.F3_KEYCODE && editable) {
-                this.new_();
                 evt.preventDefault();
+                this.select();
             } else if (evt.which == Sao.common.F2_KEYCODE) {
-                this.open();
                 evt.preventDefault();
+                if (this.filename) {
+                    this.open();
+                } else {
+                    this.save_as();
+                }
             }
         },
         set_value: function() {

tryton/tryton/gui/window/view_form/view/form_gtk/binary.py

@@ -182,13 +182,13 @@ class Binary(BinaryMixin, Widget):
     def sig_key_press(self, widget, event, *args):
         editable = self.wid_text and self.wid_text.get_editable()
         if event.keyval == Gdk.KEY_F3 and editable:
-            self.sig_new(widget)
+            self.select(widget)
             return True
         elif event.keyval == Gdk.KEY_F2:
             if self.filename:
-                self.sig_open(widget)
+                self.open_()
             else:
-                self.sig_save_as(widget)
+                self.save_as()
             return True
         return False