[gtksourceview/wip/chergert/vim] stub out entering/leaving visual mode

[Christian Hergert <chergert src gnome org>]

commit 1234ad508f0156a99efd757139294bd6e8a4ec28
Author: Christian Hergert <chergert redhat com>
Date:   Fri Oct 29 17:42:51 2021 -0700

    stub out entering/leaving visual mode

 gtksourceview/vim/gtk-source-vim-normal.c | 39 +++++++++++++++++++------------
 gtksourceview/vim/gtk-source-vim-visual.c | 22 +++++++++++++++++
 2 files changed, 46 insertions(+), 15 deletions(-)
---
diff --git a/gtksourceview/vim/gtk-source-vim-normal.c b/gtksourceview/vim/gtk-source-vim-normal.c
index 12f27d98..ee6681f9 100644
--- a/gtksourceview/vim/gtk-source-vim-normal.c
+++ b/gtksourceview/vim/gtk-source-vim-normal.c
@@ -29,6 +29,7 @@
 #include "gtk-source-vim-motion.h"
 #include "gtk-source-vim-normal.h"
 #include "gtk-source-vim-replace.h"
+#include "gtk-source-vim-visual.h"
 
 #define REPLAY(_block) do { _block; } while (--self->count > 0);
 
@@ -229,6 +230,23 @@ gtk_source_vim_normal_begin_command (GtkSourceVimNormal *self,
        gtk_source_vim_state_pop (GTK_SOURCE_VIM_STATE (command));
 }
 
+static void
+gtk_source_vim_normal_begin_visual (GtkSourceVimNormal     *self,
+                                    GtkSourceVimVisualMode  mode)
+{
+       GtkSourceVimState *visual;
+       int count;
+
+       g_assert (GTK_SOURCE_IS_VIM_NORMAL (self));
+
+       count = self->count, self->count = 0;
+
+       visual = gtk_source_vim_visual_new (mode);
+       gtk_source_vim_state_set_count (visual, count);
+
+       gtk_source_vim_state_push (GTK_SOURCE_VIM_STATE (self), visual);
+}
+
 static void
 go_backward_char (GtkSourceVimNormal *self)
 {
@@ -672,18 +690,6 @@ key_handler_split (GtkSourceVimNormal *self,
        return TRUE;
 }
 
-static gboolean
-key_handler_visual (GtkSourceVimNormal *self,
-                    guint               keyval,
-                    guint               keycode,
-                    GdkModifierType     mods,
-                    const char         *string)
-{
-       g_assert (GTK_SOURCE_IS_VIM_NORMAL (self));
-
-       return TRUE;
-}
-
 static gboolean
 key_handler_increment (GtkSourceVimNormal *self,
                        guint               keyval,
@@ -771,8 +777,8 @@ key_handler_initial (GtkSourceVimNormal *self,
                                break;
 
                        case GDK_KEY_v:
-                               self->handler = key_handler_visual;
-                               break;
+                               gtk_source_vim_normal_begin_visual (self, GTK_SOURCE_VIM_VISUAL_BLOCK);
+                               return TRUE;
 
                        case GDK_KEY_w:
                                self->handler = key_handler_split;
@@ -914,8 +920,11 @@ key_handler_initial (GtkSourceVimNormal *self,
                                return TRUE;
 
                        case GDK_KEY_v:
+                               gtk_source_vim_normal_begin_visual (self, GTK_SOURCE_VIM_VISUAL_CHAR);
+                               break;
+
                        case GDK_KEY_V:
-                               self->handler = key_handler_visual;
+                               gtk_source_vim_normal_begin_visual (self, GTK_SOURCE_VIM_VISUAL_LINE);
                                break;
 
                        default:
diff --git a/gtksourceview/vim/gtk-source-vim-visual.c b/gtksourceview/vim/gtk-source-vim-visual.c
index 4190ad21..83bbca26 100644
--- a/gtksourceview/vim/gtk-source-vim-visual.c
+++ b/gtksourceview/vim/gtk-source-vim-visual.c
@@ -57,6 +57,27 @@ gtk_source_vim_visual_get_command_bar_text (GtkSourceVimState *state)
        }
 }
 
+static gboolean
+gtk_source_vim_visual_handle_keypress (GtkSourceVimState *state,
+                                       guint              keyval,
+                                       guint              keycode,
+                                       GdkModifierType    mods,
+                                       const char        *string)
+{
+       GtkSourceVimVisual *self = (GtkSourceVimVisual *)state;
+
+       g_assert (GTK_SOURCE_IS_VIM_VISUAL (state));
+
+       /* Leave insert mode if Escape/ctrl+[ was pressed */
+       if (gtk_source_vim_state_is_escape (keyval, mods))
+       {
+               gtk_source_vim_state_pop (GTK_SOURCE_VIM_STATE (self));
+               return TRUE;
+       }
+
+       return TRUE;
+}
+
 static void
 gtk_source_vim_visual_dispose (GObject *object)
 {
@@ -72,6 +93,7 @@ gtk_source_vim_visual_class_init (GtkSourceVimVisualClass *klass)
        object_class->dispose = gtk_source_vim_visual_dispose;
 
        state_class->get_command_bar_text = gtk_source_vim_visual_get_command_bar_text;
+       state_class->handle_keypress = gtk_source_vim_visual_handle_keypress;
 }
 
 static void