Split off dap event handlers into helix-view to allow reuse

1 files changed, 28 insertions, 0 deletions

diff --git a/helix-view/src/lib.rs b/helix-view/src/lib.rs
index e0964e1c..788304bc 100644
--- a/helix-view/src/lib.rs
+++ b/helix-view/src/lib.rs
@@ -6,6 +6,10 @@ pub mod document;
 pub mod editor;
 pub mod graphics;
 pub mod gutter;
+pub mod handlers {
+    pub mod dap;
+    pub mod lsp;
+}
 pub mod info;
 pub mod input;
 pub mod keyboard;
@@ -36,6 +40,30 @@ slotmap::new_key_type! {
     pub struct ViewId;
 }
 
+pub enum Align {
+    Top,
+    Center,
+    Bottom,
+}
+
+pub fn align_view(doc: &Document, view: &mut View, align: Align) {
+    let pos = doc
+        .selection(view.id)
+        .primary()
+        .cursor(doc.text().slice(..));
+    let line = doc.text().char_to_line(pos);
+
+    let height = view.inner_area().height as usize;
+
+    let relative = match align {
+        Align::Center => height / 2,
+        Align::Top => 0,
+        Align::Bottom => height,
+    };
+
+    view.offset.row = line.saturating_sub(relative);
+}
+
 pub use document::Document;
 pub use editor::Editor;
 pub use theme::Theme;