Massively reorganize and clean up the whole Rust codebase (#478)

* Massively reorganize and clean up the whole Rust codebase

* Additional changes during code review

frontend/wasm/src/api.rs

@@ -1,28 +1,30 @@
 // This file is where functions are defined to be called directly from JS.
 // It serves as a thin wrapper over the editor backend API that relies
 // on the dispatcher messaging system and more complex Rust data types.
-use std::sync::atomic::Ordering;
 
 use crate::helpers::Error;
 use crate::type_translators::{translate_blend_mode, translate_key, translate_tool_type, translate_view_mode};
 use crate::{EDITOR_HAS_CRASHED, EDITOR_INSTANCES};
+
 use editor::consts::{FILE_SAVE_SUFFIX, GRAPHITE_DOCUMENT_VERSION};
 use editor::input::input_preprocessor::ModifierKeys;
 use editor::input::mouse::{EditorMouseState, ScrollDelta, ViewportBounds};
 use editor::message_prelude::*;
 use editor::misc::EditorError;
-use editor::tool::{tool_options::ToolOptions, tools, ToolType};
+use editor::viewport_tools::tool::ToolType;
+use editor::viewport_tools::tool_options::ToolOptions;
+use editor::viewport_tools::tools;
 use editor::Color;
+use editor::Editor;
 use editor::LayerId;
 
-use editor::Editor;
 use serde::Serialize;
 use serde_wasm_bindgen;
+use std::sync::atomic::Ordering;
 use wasm_bindgen::prelude::*;
 
-// To avoid wasm-bindgen from checking mutable reference issues using WasmRefCell
-// we must make all methods take a non mutable reference to self. Not doing this creates
-// an issue when rust calls into JS which calls back to rust in the same call stack.
+// To avoid wasm-bindgen from checking mutable reference issues using WasmRefCell we must make all methods take a non mutable reference to self.
+// Not doing this creates an issue when rust calls into JS which calls back to rust in the same call stack.
 #[wasm_bindgen]
 #[derive(Clone)]
 pub struct JsEditorHandle {

frontend/wasm/src/helpers.rs

@@ -1,6 +1,6 @@
 use wasm_bindgen::prelude::*;
 
-// The JavaScript `Error` type
+/// The JavaScript `Error` type
 #[wasm_bindgen]
 extern "C" {
 	#[derive(Clone, Debug)]

frontend/wasm/src/lib.rs

@@ -1,9 +1,10 @@
 pub mod api;
-mod helpers;
+pub mod helpers;
 pub mod logging;
 pub mod type_translators;
 
-use editor::message_prelude::FrontendMessage;
+use editor::message_prelude::*;
+
 use logging::WasmLog;
 use std::cell::RefCell;
 use std::collections::HashMap;
@@ -12,13 +13,12 @@ use std::sync::atomic::AtomicBool;
 use wasm_bindgen::prelude::*;
 
 // Set up the persistent editor backend state
-static LOGGER: WasmLog = WasmLog;
+pub static EDITOR_HAS_CRASHED: AtomicBool = AtomicBool::new(false);
+pub static LOGGER: WasmLog = WasmLog;
 thread_local! {
 	pub static EDITOR_INSTANCES: RefCell<HashMap<u64, (editor::Editor, api::JsEditorHandle)>> = RefCell::new(HashMap::new());
 }
 
-pub static EDITOR_HAS_CRASHED: AtomicBool = AtomicBool::new(false);
-
 // Initialize the backend
 #[wasm_bindgen(start)]
 pub fn init() {

frontend/wasm/src/type_translators.rs

@@ -1,7 +1,9 @@
 use crate::helpers::match_string_to_enum;
+
 use editor::input::keyboard::Key;
-use editor::tool::ToolType;
-use graphene::layers::{style::ViewMode, BlendMode};
+use editor::viewport_tools::tool::ToolType;
+use graphene::layers::blend_mode::BlendMode;
+use graphene::layers::style::ViewMode;
 
 pub fn translate_tool_type(name: &str) -> Option<ToolType> {
 	use ToolType::*;