added move left&right, delete char

1 files changed, 35 insertions, 3 deletions

diff --git a/helix-view/src/prompt.rs b/helix-view/src/prompt.rs
index f1920daa..98389a97 100644
--- a/helix-view/src/prompt.rs
+++ b/helix-view/src/prompt.rs
@@ -11,17 +11,37 @@ pub struct Prompt {
 impl Prompt {
     pub fn new() -> Prompt {
         let prompt = Prompt {
-            buffer: String::from(":"), // starting prompt symbol
+            buffer: String::from(""),
             cursor_loc: 0,
         };
         prompt
     }
 
     pub fn insert_char(&mut self, c: char) {
-        self.buffer.push(c);
+        self.buffer.insert(self.cursor_loc, c);
+        self.cursor_loc += 1;
     }
 
-    pub fn handle_keyevent(&mut self, key_event: KeyEvent, view: &mut View) {
+    pub fn move_char_left_prompt(&mut self) {
+        if self.cursor_loc > 1 {
+            self.cursor_loc -= 1;
+        }
+    }
+
+    pub fn move_char_right_prompt(&mut self) {
+        if self.cursor_loc < self.buffer.len() {
+            self.cursor_loc += 1;
+        }
+    }
+
+    pub fn delete_char_backwards(&mut self) {
+        if self.cursor_loc > 0 {
+            self.buffer.remove(self.cursor_loc - 1);
+            self.cursor_loc -= 1;
+        }
+    }
+
+    pub fn handle_input(&mut self, key_event: KeyEvent, view: &mut View) {
         match key_event {
             KeyEvent {
                 code: KeyCode::Char(c),
@@ -30,6 +50,18 @@ impl Prompt {
             KeyEvent {
                 code: KeyCode::Esc, ..
             } => commands::normal_mode(view, 1),
+            KeyEvent {
+                code: KeyCode::Right,
+                ..
+            } => self.move_char_right_prompt(),
+            KeyEvent {
+                code: KeyCode::Left,
+                ..
+            } => self.move_char_left_prompt(),
+            KeyEvent {
+                code: KeyCode::Backspace,
+                ..
+            } => self.delete_char_backwards(),
             _ => (),
         }
     }