add support for specifying new tab home page

 - inherit, start where preview tab started
 - home, start in home dir
 - root, start in root dir

 - add rudimentary support for preview
 - add preview script configuration

2 files changed, 18 insertions, 0 deletions

diff --git a/src/preview/mod.rs b/src/preview/mod.rs
new file mode 100644
index 0000000..6a3e7fd
--- /dev/null
+++ b/src/preview/mod.rs
@@ -0,0 +1,3 @@
+pub mod preview_sh;
+
+pub use self::preview_sh::preview_with_script;
diff --git a/src/preview/preview_sh.rs b/src/preview/preview_sh.rs
new file mode 100644
index 0000000..9d66ab4
--- /dev/null
+++ b/src/preview/preview_sh.rs
@@ -0,0 +1,15 @@
+use crate::context::AppContext;
+use crate::ui::TuiBackend;
+
+pub fn preview_with_script(context: &AppContext, backend: &mut TuiBackend) {
+    let preview_options = context.config_ref().preview_options_ref();
+    if let Some(script_path) = preview_options.preview_script.as_ref() {
+        let file_full_path = 0;
+        let preview_width = 0;
+        let preview_height = 0;
+        let image_cache = 0;
+        let preview_image = if preview_options.preview_images { 1 } else { 0 };
+
+        // spawn preview process
+    }
+}