[gtksourceview/wip/chergert/vim] check editable before some commands

[Christian Hergert <chergert src gnome org>]

commit 4118906b75bad4882a326e961560abf5ea5cd637
Author: Christian Hergert <chergert redhat com>
Date:   Fri Nov 5 11:39:36 2021 -0700

    check editable before some commands

 gtksourceview/vim/gtk-source-vim-command.c | 36 ++++++++++++++++++++++++++++++
 gtksourceview/vim/gtk-source-vim-state.c   | 12 ++++++++++
 gtksourceview/vim/gtk-source-vim-state.h   |  1 +
 3 files changed, 49 insertions(+)
---
diff --git a/gtksourceview/vim/gtk-source-vim-command.c b/gtksourceview/vim/gtk-source-vim-command.c
index 967d69e0..33cb5c76 100644
--- a/gtksourceview/vim/gtk-source-vim-command.c
+++ b/gtksourceview/vim/gtk-source-vim-command.c
@@ -68,6 +68,9 @@ gtk_source_vim_command_format (GtkSourceVimCommand *self)
        GtkTextIter iter;
        GtkTextIter selection;
 
+       if (!gtk_source_vim_state_get_editable (GTK_SOURCE_VIM_STATE (self)))
+               return;
+
        buffer = gtk_source_vim_state_get_buffer (GTK_SOURCE_VIM_STATE (self), &iter, &selection);
        root = gtk_source_vim_state_get_root (GTK_SOURCE_VIM_STATE (self));
 
@@ -94,6 +97,9 @@ gtk_source_vim_command_shift (GtkSourceVimCommand *self,
        GtkTextIter iter, selection;
        int count;
 
+       if (!gtk_source_vim_state_get_editable (GTK_SOURCE_VIM_STATE (self)))
+               return;
+
        gtk_source_vim_state_set_can_repeat (GTK_SOURCE_VIM_STATE (self), TRUE);
 
        count = gtk_source_vim_state_get_count (GTK_SOURCE_VIM_STATE (self));
@@ -150,6 +156,9 @@ gtk_source_vim_command_delete (GtkSourceVimCommand *self)
        GtkTextIter iter, selection;
        char *text;
 
+       if (!gtk_source_vim_state_get_editable (GTK_SOURCE_VIM_STATE (self)))
+               return;
+
        gtk_source_vim_state_set_can_repeat (GTK_SOURCE_VIM_STATE (self), TRUE);
 
        buffer = gtk_source_vim_state_get_buffer (GTK_SOURCE_VIM_STATE (self), &iter, &selection);
@@ -180,6 +189,9 @@ gtk_source_vim_command_join (GtkSourceVimCommand *self)
        GtkTextIter end;
        guint offset;
 
+       if (!gtk_source_vim_state_get_editable (GTK_SOURCE_VIM_STATE (self)))
+               return;
+
        buffer = gtk_source_vim_state_get_buffer (GTK_SOURCE_VIM_STATE (self), &iter, &selection);
 
        gtk_text_buffer_begin_user_action (GTK_TEXT_BUFFER (buffer));
@@ -234,6 +246,9 @@ gtk_source_vim_command_paste_after (GtkSourceVimCommand *self)
        const char *text;
        int count;
 
+       if (!gtk_source_vim_state_get_editable (GTK_SOURCE_VIM_STATE (self)))
+               return;
+
        buffer = gtk_source_vim_state_get_buffer (GTK_SOURCE_VIM_STATE (self), &iter, &selection);
        text = gtk_source_vim_state_get_current_register_value (GTK_SOURCE_VIM_STATE (self));
        count = gtk_source_vim_state_get_count (GTK_SOURCE_VIM_STATE (self));
@@ -296,6 +311,9 @@ gtk_source_vim_command_paste_before (GtkSourceVimCommand *self)
        const char *text;
        int count;
 
+       if (!gtk_source_vim_state_get_editable (GTK_SOURCE_VIM_STATE (self)))
+               return;
+
        buffer = gtk_source_vim_state_get_buffer (GTK_SOURCE_VIM_STATE (self), &iter, &selection);
        text = gtk_source_vim_state_get_current_register_value (GTK_SOURCE_VIM_STATE (self));
        count = gtk_source_vim_state_get_count (GTK_SOURCE_VIM_STATE (self));
@@ -345,6 +363,9 @@ gtk_source_vim_command_toggle_case (GtkSourceVimCommand *self)
        GtkTextIter iter;
        GtkTextIter selection;
 
+       if (!gtk_source_vim_state_get_editable (GTK_SOURCE_VIM_STATE (self)))
+               return;
+
        buffer = gtk_source_vim_state_get_buffer (GTK_SOURCE_VIM_STATE (self), &iter, &selection);
 
        gtk_source_vim_state_begin_user_action (GTK_SOURCE_VIM_STATE (self));
@@ -371,6 +392,9 @@ gtk_source_vim_command_change_case (GtkSourceVimCommand     *self,
        GtkTextIter iter;
        GtkTextIter selection;
 
+       if (!gtk_source_vim_state_get_editable (GTK_SOURCE_VIM_STATE (self)))
+               return;
+
        buffer = gtk_source_vim_state_get_buffer (GTK_SOURCE_VIM_STATE (self), &iter, &selection);
 
        gtk_text_iter_order (&iter, &selection);
@@ -432,6 +456,9 @@ gtk_source_vim_command_rot13 (GtkSourceVimCommand *self)
        char *text;
        char *new_text;
 
+       if (!gtk_source_vim_state_get_editable (GTK_SOURCE_VIM_STATE (self)))
+               return;
+
        buffer = gtk_source_vim_state_get_buffer (GTK_SOURCE_VIM_STATE (self), &iter, &selection);
        text = gtk_text_iter_get_slice (&iter, &selection);
        new_text = rot13 (text);
@@ -481,6 +508,9 @@ gtk_source_vim_command_replace_one (GtkSourceVimCommand *self)
 
        g_assert (GTK_SOURCE_IS_VIM_COMMAND (self));
 
+       if (!gtk_source_vim_state_get_editable (GTK_SOURCE_VIM_STATE (self)))
+               return;
+
        if (self->char_pending[0] == 0)
        {
                return;
@@ -513,6 +543,9 @@ gtk_source_vim_command_undo (GtkSourceVimCommand *self)
        GtkSourceBuffer *buffer;
        int count;
 
+       if (!gtk_source_vim_state_get_editable (GTK_SOURCE_VIM_STATE (self)))
+               return;
+
        buffer = gtk_source_vim_state_get_buffer (GTK_SOURCE_VIM_STATE (self), NULL, NULL);
        count = gtk_source_vim_state_get_count (GTK_SOURCE_VIM_STATE (self));
 
@@ -531,6 +564,9 @@ gtk_source_vim_command_redo (GtkSourceVimCommand *self)
        GtkSourceBuffer *buffer;
        int count;
 
+       if (!gtk_source_vim_state_get_editable (GTK_SOURCE_VIM_STATE (self)))
+               return;
+
        buffer = gtk_source_vim_state_get_buffer (GTK_SOURCE_VIM_STATE (self), NULL, NULL);
        count = gtk_source_vim_state_get_count (GTK_SOURCE_VIM_STATE (self));
 
diff --git a/gtksourceview/vim/gtk-source-vim-state.c b/gtksourceview/vim/gtk-source-vim-state.c
index 78efed96..bfa2222b 100644
--- a/gtksourceview/vim/gtk-source-vim-state.c
+++ b/gtksourceview/vim/gtk-source-vim-state.c
@@ -1167,3 +1167,15 @@ gtk_source_vim_state_select_linewise (GtkSourceVimState *self,
 
        gtk_text_buffer_select_range (GTK_TEXT_BUFFER (buffer), insert, selection);
 }
+
+gboolean
+gtk_source_vim_state_get_editable (GtkSourceVimState *self)
+{
+       GtkSourceView *view;
+
+       g_return_val_if_fail (GTK_SOURCE_IS_VIM_STATE (self), FALSE);
+
+       view = gtk_source_vim_state_get_view (self);
+
+       return gtk_text_view_get_editable (GTK_TEXT_VIEW (view));
+}
diff --git a/gtksourceview/vim/gtk-source-vim-state.h b/gtksourceview/vim/gtk-source-vim-state.h
index 5ab5889c..7e55a008 100644
--- a/gtksourceview/vim/gtk-source-vim-state.h
+++ b/gtksourceview/vim/gtk-source-vim-state.h
@@ -59,6 +59,7 @@ struct _GtkSourceVimStateClass
                                             GString           *string);
 };
 
+gboolean           gtk_source_vim_state_get_editable               (GtkSourceVimState *self);
 void               gtk_source_vim_state_set_parent                 (GtkSourceVimState *self,
                                                                     GtkSourceVimState *parent);
 void               gtk_source_vim_state_push                       (GtkSourceVimState *self,