[gnome-boxes] app,props,wizard: Fix kbd shortcuts for RTL

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit c371b3eb651ace1483eb017ee5273f7e9775f4f0
Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
Date:   Mon Dec 7 17:58:45 2015 +0000

    app,props,wizard: Fix kbd shortcuts for RTL
    
    The back and forward keyboard shortcuts need to be reversed for
    Right-To-Left locales.

 src/app-window.vala        |    6 +++++-
 src/properties-window.vala |    6 +++++-
 src/wizard-window.vala     |   13 ++++++++++---
 3 files changed, 20 insertions(+), 5 deletions(-)
---
diff --git a/src/app-window.vala b/src/app-window.vala
index c2e3729..08e2e92 100644
--- a/src/app-window.vala
+++ b/src/app-window.vala
@@ -338,6 +338,7 @@ private class Boxes.AppWindow: Gtk.ApplicationWindow, Boxes.UI {
     [GtkCallback]
     public bool on_key_pressed (Widget widget, Gdk.EventKey event) {
         var default_modifiers = Gtk.accelerator_get_default_mod_mask ();
+        var direction = get_direction ();
 
         if (event.keyval == Gdk.Key.F11) {
             fullscreened = !fullscreened;
@@ -367,7 +368,10 @@ private class Boxes.AppWindow: Gtk.ApplicationWindow, Boxes.UI {
             App.app.quit_app ();
 
             return true;
-        } else if (event.keyval == Gdk.Key.Left && // ALT + Left -> back
+        } else if (((direction == Gtk.TextDirection.LTR && // LTR
+                     event.keyval == Gdk.Key.Left) ||      // ALT + Left -> back
+                    (direction == Gtk.TextDirection.RTL && // RTL
+                     event.keyval == Gdk.Key.Right)) &&    // ALT + Right -> back
                    (event.state & default_modifiers) == Gdk.ModifierType.MOD1_MASK) {
             topbar.click_back_button ();
             return true;
diff --git a/src/properties-window.vala b/src/properties-window.vala
index 5a889d0..20ef436 100644
--- a/src/properties-window.vala
+++ b/src/properties-window.vala
@@ -100,8 +100,12 @@ private class Boxes.PropertiesWindow: Gtk.Window, Boxes.UI {
     [GtkCallback]
     private bool on_key_pressed (Widget widget, Gdk.EventKey event) {
         var default_modifiers = Gtk.accelerator_get_default_mod_mask ();
+        var direction = get_direction ();
 
-        if (event.keyval == Gdk.Key.Left && // ALT + Left -> back
+        if (((direction == Gtk.TextDirection.LTR && // LTR
+              event.keyval == Gdk.Key.Left) ||      // ALT + Left -> back
+             (direction == Gtk.TextDirection.RTL && // RTL
+              event.keyval == Gdk.Key.Right)) &&    // ALT + Right -> back
             (event.state & default_modifiers) == Gdk.ModifierType.MOD1_MASK) {
             topbar.click_back_button ();
 
diff --git a/src/wizard-window.vala b/src/wizard-window.vala
index ac0deb2..8613747 100644
--- a/src/wizard-window.vala
+++ b/src/wizard-window.vala
@@ -117,12 +117,19 @@ private class Boxes.WizardWindow : Gtk.Window, Boxes.UI {
     [GtkCallback]
     private bool on_key_pressed (Widget widget, Gdk.EventKey event) {
         var default_modifiers = Gtk.accelerator_get_default_mod_mask ();
+        var direction = get_direction ();
 
-        if (event.keyval == Gdk.Key.Left && // ALT + Left -> back
-                   (event.state & default_modifiers) == Gdk.ModifierType.MOD1_MASK) {
+        if (((direction == Gtk.TextDirection.LTR && // LTR
+              event.keyval == Gdk.Key.Left) ||      // ALT + Left -> back
+             (direction == Gtk.TextDirection.RTL && // RTL
+              event.keyval == Gdk.Key.Right)) &&    // ALT + Right -> back
+            (event.state & default_modifiers) == Gdk.ModifierType.MOD1_MASK) {
             topbar.click_back_button ();
             return true;
-        } else if (event.keyval == Gdk.Key.Right && // ALT + Right -> forward
+        } else if (((direction == Gtk.TextDirection.LTR && // LTR
+                     event.keyval == Gdk.Key.Right) ||     // ALT + Right -> forward
+                    (direction == Gtk.TextDirection.RTL && // RTL
+                     event.keyval == Gdk.Key.Left)) &&     // ALT + Left -> forward
                    (event.state & default_modifiers) == Gdk.ModifierType.MOD1_MASK) {
             topbar.click_forward_button ();
             return true;