[gedit] tab: set error state on encoding conversion error

[Sébastien Wilmet <swilmet src gnome org>]

commit df24f176e4ea94c47d61813e116f21ee8a2bf1ec
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Wed Jun 10 19:57:35 2015 +0200

    tab: set error state on encoding conversion error
    
    So the printing is insensitive.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=669976

 gedit/gedit-tab.c |   26 +++++++++++++++++++++-----
 1 files changed, 21 insertions(+), 5 deletions(-)
---
diff --git a/gedit/gedit-tab.c b/gedit/gedit-tab.c
index bd23177..476a2ef 100644
--- a/gedit/gedit-tab.c
+++ b/gedit/gedit-tab.c
@@ -517,12 +517,15 @@ gedit_tab_set_state (GeditTab      *tab,
 
        set_view_properties_according_to_state (tab, state);
 
-       if ((state == GEDIT_TAB_STATE_LOADING_ERROR) || /* FIXME: add other states if needed */
-           (state == GEDIT_TAB_STATE_SHOWING_PRINT_PREVIEW))
+       /* Hide or show the document.
+        * For GEDIT_TAB_STATE_LOADING_ERROR, tab->frame is either shown or
+        * hidden, depending on the error.
+        */
+       if (state == GEDIT_TAB_STATE_SHOWING_PRINT_PREVIEW)
        {
                gtk_widget_hide (GTK_WIDGET (tab->frame));
        }
-       else if (tab->print_preview == NULL)
+       else if (state != GEDIT_TAB_STATE_LOADING_ERROR)
        {
                gtk_widget_show (GTK_WIDGET (tab->frame));
        }
@@ -1817,6 +1820,7 @@ load_cb (GtkSourceFileLoader *loader,
        {
                if (tab->state == GEDIT_TAB_STATE_LOADING)
                {
+                       gtk_widget_hide (GTK_WIDGET (tab->frame));
                        gedit_tab_set_state (tab, GEDIT_TAB_STATE_LOADING_ERROR);
                }
                else
@@ -1896,6 +1900,20 @@ load_cb (GtkSourceFileLoader *loader,
                                  tab);
 
                set_info_bar (tab, info_bar, GTK_RESPONSE_CANCEL);
+
+               if (tab->state == GEDIT_TAB_STATE_LOADING)
+               {
+                       gtk_widget_show (GTK_WIDGET (tab->frame));
+                       gedit_tab_set_state (tab, GEDIT_TAB_STATE_LOADING_ERROR);
+               }
+               else
+               {
+                       gedit_tab_set_state (tab, GEDIT_TAB_STATE_REVERTING_ERROR);
+               }
+       }
+       else
+       {
+               gedit_tab_set_state (tab, GEDIT_TAB_STATE_NORMAL);
        }
 
        /* Scroll to the cursor when the document is loaded, we need to do it in
@@ -1950,8 +1968,6 @@ load_cb (GtkSourceFileLoader *loader,
                g_list_free (all_documents);
        }
 
-       gedit_tab_set_state (tab, GEDIT_TAB_STATE_NORMAL);
-
        if (location == NULL)
        {
                /* FIXME: hackish */