fix(explorer): fix explorer mode

src/buffer/maps.rs

@@ -1,6 +1,9 @@
 use std::collections::HashMap;
 
-use crate::buffer::actions::find_next_word_position::find_next_word_position;
+use crate::{
+    buffer::actions::find_next_word_position::find_next_word_position, core::Size,
+    plugins::explorer::explorer_buffer::create_explorer_buffer,
+};
 
 use super::ActionMap;
 
@@ -104,7 +107,23 @@ pub fn get_default_command_maps() -> ActionMap {
         editor.get_active_buffer_mut().enter_normal_mode()
     });
     map.insert("enter", |editor| {
-        editor.get_active_buffer_mut().run_command()
+        // TODO: Move this
+        let command = editor.get_active_buffer().command.text.trim();
+        if command == "e" {
+            let window = editor.get_active_window();
+            let buffer = create_explorer_buffer(
+                String::from("."),
+                Size {
+                    width: window.size.width,
+                    height: window.size.height - 2,
+                },
+            );
+            let window = editor.get_active_window_mut();
+            window.buffers.push(buffer);
+            window.active_buffer = window.buffers.len() - 1;
+        } else {
+            editor.get_active_buffer_mut().run_command()
+        }
     });
     map.insert("backspace", |editor| {
         editor.get_active_buffer_mut().command.delete_char()

src/window.rs

@@ -7,6 +7,7 @@ pub struct Window {
     pub position: Point<u16>,
     pub size: Size<u16>,
     pub buffers: Vec<Buffer>,
+    pub active_buffer: usize,
 }
 
 impl Window {
@@ -15,6 +16,7 @@ impl Window {
             position: Point { x: 0, y: 0 },
             size,
             buffers: vec![],
+            active_buffer: 0,
         }
     }
 
@@ -28,11 +30,11 @@ impl Window {
     }
 
     pub fn get_active_buffer(&self) -> &Buffer {
-        self.buffers.get(0).unwrap()
+        self.buffers.get(self.active_buffer).unwrap()
     }
 
     pub fn get_active_buffer_mut(&mut self) -> &mut Buffer {
-        self.buffers.get_mut(0).unwrap()
+        self.buffers.get_mut(self.active_buffer).unwrap()
     }
 
     pub fn set_size(&mut self, width: u16, height: u16) {