[evolution] Bug 723377 - Add alternate zoom shortcuts

[Matthew Barnes <mbarnes src gnome org>]

commit 8924b0bd5ef04c30ed3a43652e70e583407f7b85
Author: Matthew Barnes <mbarnes redhat com>
Date:   Sun Feb 2 11:49:01 2014 -0500

    Bug 723377 - Add alternate zoom shortcuts
    
    The zoom in shortcut (Ctrl+) can be confusing for some users because on
    keyboards with a [+ =] key the '+' requires holding Shift.  To mitigate
    the confusion, also accept (Ctrl=) for zoom in.
    
    And while we're add it, also support Ctrl+ and Ctrl- on keypads, as well
    as keyboards with dedicated Zoom In / Zoom Out keys.

 mail/e-mail-reader.c |   17 +++++++++++++++++
 1 files changed, 17 insertions(+), 0 deletions(-)
---
diff --git a/mail/e-mail-reader.c b/mail/e-mail-reader.c
index 0021294..3b6aaa3 100644
--- a/mail/e-mail-reader.c
+++ b/mail/e-mail-reader.c
@@ -2518,6 +2518,14 @@ mail_reader_key_press_event_cb (EMailReader *reader,
                        action_name = "mail-toggle-important";
                        break;
 
+               case GDK_KEY_ZoomIn:
+                       action_name = "mail-zoom-in";
+                       break;
+
+               case GDK_KEY_ZoomOut:
+                       action_name = "mail-zoom-out";
+                       break;
+
                default:
                        return FALSE;
        }
@@ -2536,6 +2544,15 @@ ctrl:
                        action_name = "mail-previous-unread";
                        break;
 
+               case GDK_KEY_equal:
+               case GDK_KEY_KP_Add:
+                       action_name = "mail-zoom-in";
+                       break;
+
+               case GDK_KEY_KP_Subtract:
+                       action_name = "mail-zoom-out";
+                       break;
+
                default:
                        return FALSE;
        }