Merge pull request #3 from helix-editor/goto-implementation

Goto mode implementation

1 files changed, 19 insertions, 3 deletions

diff --git a/helix-term/src/editor.rs b/helix-term/src/editor.rs
index 70b5758e..09d66c5a 100644
--- a/helix-term/src/editor.rs
+++ b/helix-term/src/editor.rs
@@ -87,7 +87,7 @@ impl Editor {
                 // TODO: inefficient, should feed chunks.iter() to tree_sitter.parse_with(|offset, pos|)
                 let source_code = view.state.doc().to_string();
 
-                let last_line = view.last_line(viewport);
+                let last_line = view.last_line();
 
                 let range = {
                     // calculate viewport byte ranges
@@ -219,7 +219,7 @@ impl Editor {
                 }
 
                 let style: Style = view.theme.get("ui.linenr");
-                for (i, line) in (view.first_line..(last_line as u16)).enumerate() {
+                for (i, line) in (view.first_line..last_line).enumerate() {
                     self.surface
                         .set_stringn(0, i as u16, format!("{:>5}", line + 1), 5, style);
                     // lavender
@@ -254,6 +254,7 @@ impl Editor {
                 let mode = match view.state.mode() {
                     Mode::Insert => "INS",
                     Mode::Normal => "NOR",
+                    Mode::Goto => "GOTO",
                 };
                 self.surface.set_style(
                     Rect::new(0, self.size.1 - 1, self.size.0, 1),
@@ -278,13 +279,14 @@ impl Editor {
                 match view.state.mode() {
                     Mode::Insert => write!(stdout, "\x1B[6 q"),
                     Mode::Normal => write!(stdout, "\x1B[2 q"),
+                    Mode::Goto => write!(stdout, "\x1B[2 q"),
                 };
 
                 // render the cursor
                 let pos = view.state.selection().cursor();
 
                 let pos = view
-                    .screen_coords_at_pos(&view.state.doc().slice(..), pos, area)
+                    .screen_coords_at_pos(&view.state.doc().slice(..), pos)
                     .expect("Cursor is out of bounds.");
 
                 execute!(
@@ -326,6 +328,7 @@ impl Editor {
                 }))) => {
                     break;
                 }
+
                 Some(Ok(Event::Key(event))) => {
                     if let Some(view) = &mut self.view {
                         match view.state.mode() {
@@ -359,6 +362,19 @@ impl Editor {
                                     self.render();
                                 }
                             }
+                            Mode::Goto => {
+                                // TODO: handle modes and sequences (`gg`)
+                                let keys = vec![event];
+                                if let Some(command) = keymap[&Mode::Goto].get(&keys) {
+                                    // TODO: handle count other than 1
+                                    command(view, 1);
+
+                                    // TODO: simplistic ensure cursor in view for now
+                                    view.ensure_cursor_in_view();
+
+                                    self.render();
+                                }
+                            }
                         }
                     }
                 }