[tepl] ApplicationWindow: update paste action sensitivity only when necessary

[Sébastien Wilmet <swilmet src gnome org>]

commit 3d5fa23c0da2ce00c766082cf1a7026d6fed1ccc
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Thu Jul 27 12:14:17 2017 +0200

    ApplicationWindow: update paste action sensitivity only when necessary
    
    To not request the clipboard each time the GtkTextBuffer:has-selection
    property changes.

 tepl/tepl-application-window.c |    9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)
---
diff --git a/tepl/tepl-application-window.c b/tepl/tepl-application-window.c
index 27dd304..89f5da1 100644
--- a/tepl/tepl-application-window.c
+++ b/tepl/tepl-application-window.c
@@ -323,8 +323,10 @@ update_edit_actions_sensitivity (TeplApplicationWindow *tepl_window)
        g_simple_action_set_enabled (G_SIMPLE_ACTION (action),
                                     buffer_has_selection);
 
-       /* For tepl-paste: */
-       update_paste_action_sensitivity (tepl_window);
+       /* tepl-paste is treated separately with
+        * update_paste_action_sensitivity(), to request the clipboard only when
+        * necessary.
+        */
 
        action = g_action_map_lookup_action (action_map, "tepl-delete");
        g_simple_action_set_enabled (G_SIMPLE_ACTION (action),
@@ -339,6 +341,7 @@ static void
 update_actions_sensitivity (TeplApplicationWindow *tepl_window)
 {
        update_edit_actions_sensitivity (tepl_window);
+       update_paste_action_sensitivity (tepl_window);
 }
 
 static void
@@ -628,6 +631,7 @@ static void
 active_tab_changed (TeplApplicationWindow *tepl_window)
 {
        update_edit_actions_sensitivity (tepl_window);
+       update_paste_action_sensitivity (tepl_window);
 }
 
 static void
@@ -636,6 +640,7 @@ active_view_editable_notify_cb (GtkTextView           *active_view,
                                TeplApplicationWindow *tepl_window)
 {
        update_edit_actions_sensitivity (tepl_window);
+       update_paste_action_sensitivity (tepl_window);
 }
 
 static void