[gitg] Show diff stats only on text renderer

[Alberto Fanjul <albfan src gnome org>]

commit 0f41743e01514e42f9e05d236286313428d413cc
Author: Alberto Fanjul <albertofanjul gmail com>
Date:   Fri Nov 19 00:29:14 2021 +0100

    Show diff stats only on text renderer

 libgitg/.gitg-diff-view.vala.swp | Bin 40960 -> 0 bytes
 libgitg/gitg-diff-view-file.vala |  36 ++++++++++++++++++++----------------
 2 files changed, 20 insertions(+), 16 deletions(-)
---
diff --git a/libgitg/gitg-diff-view-file.vala b/libgitg/gitg-diff-view-file.vala
index 1765e4ab..3794f92d 100644
--- a/libgitg/gitg-diff-view-file.vala
+++ b/libgitg/gitg-diff-view-file.vala
@@ -42,13 +42,6 @@ class Gitg.DiffViewFile : Gtk.Grid
 
        public DiffViewFileRendererText? renderer_text {get; private set;}
 
-       public void add_renderer(Gtk.Widget widget, string name, string title)
-       {
-               d_stack_file_renderer.add_titled(widget, name, title);
-               bool visible = d_stack_file_renderer.get_children().length() > 1;
-               d_stack_switcher.set_visible(visible);
-       }
-
        public bool new_is_workdir { get; construct set; }
 
        public bool expanded
@@ -80,11 +73,28 @@ class Gitg.DiffViewFile : Gtk.Grid
        }
 
        public DiffViewFileInfo? info {get; construct set;}
+       private Gee.HashMap<Gtk.Widget, bool> d_diff_stat_visible_map = new Gee.HashMap<Gtk.Widget, bool>();
 
        public DiffViewFile(DiffViewFileInfo? info)
        {
                Object(info: info);
                bind_property("vexpand", d_stack_file_renderer, "vexpand", BindingFlags.SYNC_CREATE);
+               d_stack_file_renderer.notify["visible-child"].connect(page_changed);
+       }
+
+       private void page_changed()
+       {
+               var visible_child = d_stack_file_renderer.get_visible_child();
+               var visible = d_diff_stat_visible_map.get(visible_child);
+               d_diff_stat_file.set_visible(visible);
+       }
+
+       public void add_renderer(Gtk.Widget widget, string name, string title, bool show_stats)
+       {
+               d_diff_stat_visible_map.set(widget, show_stats);
+               d_stack_file_renderer.add_titled(widget, name, title);
+               bool visible = d_stack_file_renderer.get_children().length() > 1;
+               d_stack_switcher.set_visible(visible);
        }
 
        public void add_text_renderer(bool handle_selection)
@@ -98,27 +108,21 @@ class Gitg.DiffViewFile : Gtk.Grid
 
                renderer_text.bind_property("added", d_diff_stat_file, "added");
                renderer_text.bind_property("removed", d_diff_stat_file, "removed");
-               add_renderer(scrolled_window, "text", _("Text"));
+               add_renderer(scrolled_window, "text", _("Text"), true);
        }
 
        public void add_binary_renderer()
        {
                var renderer = new DiffViewFileRendererBinary();
                renderer.show();
-               add_renderer(renderer, "binary", _("Binary"));
-
-               //TODO: Only for text page
-               //d_diff_stat_file.hide();
+               add_renderer(renderer, "binary", _("Binary"), false);
        }
 
        public void add_image_renderer()
        {
                var renderer = new DiffViewFileRendererImage(info.repository, info.delta);
                renderer.show();
-               add_renderer(renderer, "image", _("Image"));
-
-               //TODO: Only for text page
-               //d_diff_stat_file.hide();
+               add_renderer(renderer, "image", _("Image"), false);
        }
 
        protected override void constructed()