Save file (#19)

rider-editor/src/app/app_state.rs

@@ -6,7 +6,8 @@ use crate::ui::*;
 use rider_config::*;
 use sdl2::rect::Point;
 use sdl2::VideoSubsystem as VS;
-use std::fs::read_to_string;
+use std::fs::{read_to_string, File};
+use std::io::Write;
 use std::sync::*;
 
 pub struct AppState {
@@ -47,6 +48,23 @@ impl AppState {
         };
     }
 
+    pub fn save_file(&self) -> Result<(), String> {
+        println!("Saving file...");
+        let editor_file = match self.file_editor.file() {
+            Some(f) => f,
+            _ => Err("No buffer found".to_string())?,
+        };
+        let mut f = File::create(editor_file.path())
+            .or_else(|_| Err("File can't be opened".to_string()))?;
+
+        f.write_all(editor_file.buffer().as_bytes())
+            .or_else(|_| Err("Failed to write to file".to_string()))?;
+
+        f.flush()
+            .or_else(|_| Err("Failed to write to file".to_string()))?;
+        Ok(())
+    }
+
     pub fn open_directory<R>(&mut self, dir_path: String, renderer: &mut R)
     where
         R: Renderer + CharacterSizeManager,

rider-editor/src/app/application.rs

@@ -48,6 +48,7 @@ pub enum UpdateResult {
     OpenDirectory(String),
     OpenFileModal,
     FileDropped(String),
+    SaveCurrentFile,
 }
 
 #[cfg_attr(tarpaulin, skip)]
@@ -201,6 +202,11 @@ impl Application {
                     UpdateResult::MouseDragStart(_point) => (),
                     UpdateResult::MouseDragStop(_point) => (),
                     UpdateResult::FileDropped(_path) => (),
+                    UpdateResult::SaveCurrentFile => {
+                        app_state
+                            .save_file()
+                            .unwrap_or_else(|e| eprintln!("Failed to save {:?}", e));
+                    }
                 }
             }
             self.tasks = new_tasks;
@@ -286,6 +292,9 @@ impl Application {
                     Keycode::O if left_control_pressed && !shift_pressed => {
                         self.tasks.push(UpdateResult::OpenFileModal)
                     }
+                    Keycode::S if left_control_pressed => {
+                        self.tasks.push(UpdateResult::SaveCurrentFile)
+                    }
                     _ => {}
                 },
                 Event::TextInput { text, .. } => {