From ea9a85395aa2268f8ae5666921a35cd73ff2aa79 Mon Sep 17 00:00:00 2001
From: Ivan Enderlin <ivan@mnt.io>
Date: Thu, 15 Jun 2023 11:11:48 +0200
Subject: [PATCH 1/2] chore(ui): Add missing trailing commas.

---
 crates/matrix-sdk-ui/tests/integration/room_list.rs | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/crates/matrix-sdk-ui/tests/integration/room_list.rs b/crates/matrix-sdk-ui/tests/integration/room_list.rs
index b610e18712e..0422aaa6cd6 100644
--- a/crates/matrix-sdk-ui/tests/integration/room_list.rs
+++ b/crates/matrix-sdk-ui/tests/integration/room_list.rs
@@ -1573,8 +1573,8 @@ async fn test_input_viewport() -> Result<(), Error> {
                 VISIBLE_ROOMS: {
                     "ranges": [],
                     "timeline_limit": 20,
-                }
-            }
+                },
+            },
         },
         respond with = {
             "pos": "1",
@@ -1596,8 +1596,8 @@ async fn test_input_viewport() -> Result<(), Error> {
                 VISIBLE_ROOMS: {
                     "ranges": [[10, 15], [20, 25]],
                     "timeline_limit": 20,
-                }
-            }
+                },
+            },
         },
         respond with = {
             "pos": "1",

From 59565657fab3ca3008e9800cc33cf3f77b069527 Mon Sep 17 00:00:00 2001
From: Ivan Enderlin <ivan@mnt.io>
Date: Thu, 15 Jun 2023 11:12:17 +0200
Subject: [PATCH 2/2] feat(ffi): Implement `RoomList::apply_input`.

This patch implements `RoomList::apply_input`. Usage example:

```rust
room_list.apply_input(RoomListInput::Viewport { ranges: vec![RoomListRange { start: 10, end_inclusive: 20 }]}).await?;
```
---
 bindings/matrix-sdk-ffi/src/api.udl      | 10 ++++++++++
 bindings/matrix-sdk-ffi/src/room_list.rs | 23 +++++++++++++++++++++++
 2 files changed, 33 insertions(+)

diff --git a/bindings/matrix-sdk-ffi/src/api.udl b/bindings/matrix-sdk-ffi/src/api.udl
index 1d1f9b74ee9..22b0566b125 100644
--- a/bindings/matrix-sdk-ffi/src/api.udl
+++ b/bindings/matrix-sdk-ffi/src/api.udl
@@ -198,3 +198,13 @@ interface RoomListEntriesUpdate {
 callback interface RoomListEntriesListener {
     void on_update(RoomListEntriesUpdate room_entries_update);
 };
+
+[Enum]
+interface RoomListInput {
+    Viewport(sequence<RoomListRange> ranges);
+};
+
+dictionary RoomListRange {
+    u32 start;
+    u32 end_inclusive;
+};
diff --git a/bindings/matrix-sdk-ffi/src/room_list.rs b/bindings/matrix-sdk-ffi/src/room_list.rs
index 213c49f4942..bfa3abffbf4 100644
--- a/bindings/matrix-sdk-ffi/src/room_list.rs
+++ b/bindings/matrix-sdk-ffi/src/room_list.rs
@@ -54,6 +54,25 @@ impl From<ruma::IdParseError> for RoomListError {
     }
 }
 
+pub struct RoomListRange {
+    pub start: u32,
+    pub end_inclusive: u32,
+}
+
+pub enum RoomListInput {
+    Viewport { ranges: Vec<RoomListRange> },
+}
+
+impl From<RoomListInput> for matrix_sdk_ui::room_list::Input {
+    fn from(value: RoomListInput) -> Self {
+        match value {
+            RoomListInput::Viewport { ranges } => Self::Viewport(
+                ranges.iter().map(|range| range.start..=range.end_inclusive).collect(),
+            ),
+        }
+    }
+}
+
 #[derive(uniffi::Object)]
 pub struct RoomList {
     inner: Arc<matrix_sdk_ui::RoomList>,
@@ -104,6 +123,10 @@ impl RoomList {
         })
     }
 
+    async fn apply_input(&self, input: RoomListInput) -> Result<(), RoomListError> {
+        self.inner.apply_input(input.into()).await.map_err(Into::into)
+    }
+
     fn room(&self, room_id: String) -> Result<Arc<RoomListItem>, RoomListError> {
         let room_id = <&RoomId>::try_from(room_id.as_str()).map_err(RoomListError::from)?;