🎉 Render plain text

* 🎉 Serialize text content (wasm)

* ♻️ Refactor functions in main to wasm module

* 🎉 Stub rendering of paragraph text (wasm)

* 📎 Clean up commented code

render-wasm/src/wasm/text.rs

@@ -0,0 +1,37 @@
+use crate::mem;
+use crate::STATE;
+
+#[no_mangle]
+pub extern "C" fn clear_shape_text() {
+    let state = unsafe { STATE.as_mut() }.expect("Got an invalid state pointer");
+    if let Some(shape) = state.current_shape() {
+        shape.clear_text();
+    }
+}
+
+#[no_mangle]
+pub extern "C" fn add_text_paragraph() {
+    let state = unsafe { STATE.as_mut() }.expect("Got an invalid state pointer");
+    if let Some(shape) = state.current_shape() {
+        let res = shape.add_text_paragraph();
+        if let Err(err) = res {
+            eprintln!("{}", err);
+        }
+    }
+}
+
+#[no_mangle]
+pub extern "C" fn add_text_leaf() {
+    let bytes = mem::bytes();
+    let text = unsafe {
+        String::from_utf8_unchecked(bytes) // TODO: handle this error
+    };
+
+    let state = unsafe { STATE.as_mut() }.expect("got an invalid state pointer");
+    if let Some(shape) = state.current_shape() {
+        let res = shape.add_text_leaf(&text);
+        if let Err(err) = res {
+            eprintln!("{}", err);
+        }
+    }
+}