picker: Factor out file picker, we want to reuse code for other pickers.

1 files changed, 32 insertions, 0 deletions

diff --git a/helix-term/src/ui/mod.rs b/helix-term/src/ui/mod.rs
index cb79a1d1..b778f531 100644
--- a/helix-term/src/ui/mod.rs
+++ b/helix-term/src/ui/mod.rs
@@ -14,3 +14,35 @@ pub use tui::style::{Color, Modifier, Style};
 pub fn text_color() -> Style {
     Style::default().fg(Color::Rgb(219, 191, 239)) // lilac
 }
+
+use std::path::PathBuf;
+pub fn file_picker(root: &str) -> Picker<PathBuf> {
+    use ignore::Walk;
+    // TODO: determine root based on git root
+    let files = Walk::new(root).filter_map(|entry| match entry {
+        Ok(entry) => {
+            // filter dirs, but we might need special handling for symlinks!
+            if !entry.file_type().unwrap().is_dir() {
+                Some(entry.into_path())
+            } else {
+                None
+            }
+        }
+        Err(_err) => None,
+    });
+
+    const MAX: usize = 1024;
+
+    use helix_view::Editor;
+    Picker::new(
+        files.take(MAX).collect(),
+        |path: &PathBuf| {
+            // format_fn
+            path.strip_prefix("./").unwrap().to_str().unwrap() // TODO: render paths without ./
+        },
+        |editor: &mut Editor, path: &PathBuf| {
+            let size = editor.view().unwrap().size;
+            editor.open(path.into(), size);
+        },
+    )
+}