Add tool_state functionality to wasm-wrapper (#42)

client/web/wasm/src/viewport.rs

@@ -1,10 +1,18 @@
-use crate::wrappers::Color;
+use crate::wrappers::{translate_tool, Color};
+use graphite_editor_core::tools::ToolState;
 use wasm_bindgen::prelude::*;
 
+pub static mut TOOL_STATE: ToolState = ToolState::default();
+
 /// Modify the currently selected tool in the document state store
 #[wasm_bindgen]
-pub fn select_tool(tool: String) {
-	todo!()
+pub fn select_tool(tool: String) -> Result<(), JsValue> {
+	let tool_state = unsafe { &mut TOOL_STATE };
+	if let Some(tool) = translate_tool(tool.as_str()) {
+		Ok(tool_state.select_tool(tool))
+	} else {
+		Err(JsValue::from(format!("Couldn't select {} because it was not recognized as a valid tool", tool)))
+	}
 }
 
 /// Mouse movement with the bounds of the canvas

client/web/wasm/src/wrappers.rs

@@ -1,3 +1,4 @@
+use graphite_editor_core::tools::{SelectAppendMode, ToolType};
 use graphite_editor_core::Color as InnerColor;
 use wasm_bindgen::prelude::*;
 
@@ -11,3 +12,29 @@ impl Color {
 		Self(InnerColor::from_rgbaf32(red, green, blue, alpha).unwrap_throw())
 	}
 }
+
+pub fn translate_tool(name: &str) -> Option<ToolType> {
+	match name {
+		"Select" => Some(ToolType::Select),
+		"Crop" => Some(ToolType::Crop),
+		"Navigate" => Some(ToolType::Navigate),
+		"Sample" => Some(ToolType::Sample),
+		"Path" => Some(ToolType::Path),
+		"Pen" => Some(ToolType::Pen),
+		"Line" => Some(ToolType::Line),
+		"Rectangle" => Some(ToolType::Rectangle),
+		"Ellipse" => Some(ToolType::Ellipse),
+		"Shape" => Some(ToolType::Shape),
+		_ => None,
+	}
+}
+
+pub fn translate_append_mode(name: &str) -> Option<SelectAppendMode> {
+	match name {
+		"New" => Some(SelectAppendMode::New),
+		"Add" => Some(SelectAppendMode::Add),
+		"Subtract" => Some(SelectAppendMode::Subtract),
+		"Intersect" => Some(SelectAppendMode::Intersect),
+		_ => None,
+	}
+}