[gtksourceview/wip/chergert/vim] ctrl+c exits insert mode

[Christian Hergert <chergert src gnome org>]

commit e000e37e1e1e394962622929830cb12f555b0ac5
Author: Christian Hergert <chergert redhat com>
Date:   Fri Nov 5 11:43:29 2021 -0700

    ctrl+c exits insert mode

 gtksourceview/vim/gtk-source-vim-insert.c | 5 +++--
 gtksourceview/vim/gtk-source-vim-state.h  | 7 +++++++
 2 files changed, 10 insertions(+), 2 deletions(-)
---
diff --git a/gtksourceview/vim/gtk-source-vim-insert.c b/gtksourceview/vim/gtk-source-vim-insert.c
index 0bd8e870..d95ecb3f 100644
--- a/gtksourceview/vim/gtk-source-vim-insert.c
+++ b/gtksourceview/vim/gtk-source-vim-insert.c
@@ -129,8 +129,9 @@ gtk_source_vim_insert_handle_event (GtkSourceVimState *state,
        if (gdk_event_get_event_type (event) != GDK_KEY_PRESS)
                return TRUE;
 
-       /* Leave insert mode if Escape/ctrl+[ was pressed */
-       if (gtk_source_vim_state_is_escape (keyval, mods))
+       /* Leave insert mode if Escape,ctrl+[,ctrl+c was pressed */
+       if (gtk_source_vim_state_is_escape (keyval, mods) ||
+           gtk_source_vim_state_is_ctrl_c (keyval, mods))
        {
                gtk_source_vim_state_pop (GTK_SOURCE_VIM_STATE (self));
                return TRUE;
diff --git a/gtksourceview/vim/gtk-source-vim-state.h b/gtksourceview/vim/gtk-source-vim-state.h
index 7e55a008..3332ff2c 100644
--- a/gtksourceview/vim/gtk-source-vim-state.h
+++ b/gtksourceview/vim/gtk-source-vim-state.h
@@ -136,4 +136,11 @@ gtk_source_vim_state_is_escape (guint           keyval,
               (keyval == GDK_KEY_bracketleft && (mods & GDK_CONTROL_MASK) != 0);
 }
 
+static inline gboolean
+gtk_source_vim_state_is_ctrl_c (guint           keyval,
+                                GdkModifierType mods)
+{
+       return keyval == GDK_KEY_c && (mods & GDK_CONTROL_MASK) != 0;
+}
+
 G_END_DECLS