feat(ffi): add Element specific well known struct and a way to deserialize it from external clients

Author: stefanceriu

bindings/matrix-sdk-ffi/src/client.rs

@@ -421,7 +421,8 @@ impl Client {
         })))
     }
 
-    /// Allows generic GET requests to be made through the SDKs internal HTTP client
+    /// Allows generic GET requests to be made through the SDKs internal HTTP
+    /// client
     pub async fn get_url(&self, url: String) -> Result<String, ClientError> {
         let http_client = self.inner.http_client();
         Ok(http_client.get(url).send().await?.text().await?)

bindings/matrix-sdk-ffi/src/element.rs

@@ -0,0 +1,21 @@
+use serde::Deserialize;
+
+use crate::ClientError;
+
+/// Well-known settings specific to ElementCall
+#[derive(Deserialize, uniffi::Record)]
+pub struct ElementCallWellKnown {
+    widget_url: String,
+}
+
+/// Element specific well-known settings
+#[derive(Deserialize, uniffi::Record)]
+pub struct ElementWellKnown {
+    call: ElementCallWellKnown,
+}
+
+/// Helper function to parse a string into a ElementWellKnown struct
+#[uniffi::export]
+pub fn make_element_well_known(string: String) -> Result<ElementWellKnown, ClientError> {
+    serde_json::from_str(&string).map_err(ClientError::new)
+}

bindings/matrix-sdk-ffi/src/lib.rs

@@ -24,6 +24,7 @@ mod authentication;
 mod chunk_iterator;
 mod client;
 mod client_builder;
+mod element;
 mod encryption;
 mod error;
 mod event;