Support rearranging layers with hotkeys (#271)

* Support moving single layers

* Fix "Move layer to top/bottom" keybinds

* Rename things named "move" to "reorder"

Fix formatting

* Combine sorted layer helper functions

* Use integer consts for moving layers to front/back

* Fix merge mistake

* Fix some clippy lints

* Fix panic

* Remove "get" prefix from functions

* Bring layer menu items out to sub-menu

* Support moving multiple layers at a time

* Add comment explaining odd keybinding

* Add reordering tests

* Add negative test

* Add new error type

* Add layer position helper, clean up tests

* Make position helper return Result

* Clean up slice iteration

* Simplify source_layer_ids computation

Co-authored-by: Dennis Kobert <dennis@kobert.dev>

client/web/wasm/src/document.rs

@@ -176,7 +176,7 @@ pub fn select_all_layers() -> Result<(), JsValue> {
 	EDITOR_STATE.with(|editor| editor.borrow_mut().handle_message(DocumentMessage::SelectAllLayers)).map_err(convert_error)
 }
 
-/// Select all layers
+/// Deselect all layers
 #[wasm_bindgen]
 pub fn deselect_all_layers() -> Result<(), JsValue> {
 	EDITOR_STATE
@@ -184,6 +184,14 @@ pub fn deselect_all_layers() -> Result<(), JsValue> {
 		.map_err(convert_error)
 }
 
+/// Reorder selected layer
+#[wasm_bindgen]
+pub fn reorder_selected_layers(delta: i32) -> Result<(), JsValue> {
+	EDITOR_STATE
+		.with(|editor| editor.borrow_mut().handle_message(DocumentMessage::ReorderSelectedLayers(delta)))
+		.map_err(convert_error)
+}
+
 /// Export the document
 #[wasm_bindgen]
 pub fn export_document() -> Result<(), JsValue> {

client/web/wasm/src/wrappers.rs

@@ -131,6 +131,10 @@ pub fn translate_key(name: &str) -> Key {
 		"arrowdown" => KeyArrowDown,
 		"arrowleft" => KeyArrowLeft,
 		"arrowright" => KeyArrowRight,
+		"[" => KeyLeftBracket,
+		"]" => KeyRightBracket,
+		"{" => KeyLeftCurlyBracket,
+		"}" => KeyRightCurlyBracket,
 		_ => UnknownKey,
 	}
 }