feat(ffi): Expose method for sending galleries (#5163)

Addendum to #5125 to
allow sending galleries from the FFI crate. This is the final PR for
galleries (apart from possible enhancements to report the upload status
in #5008).

This is somewhat lengthy again, apologies. Most of the changes are just
wrappers and type mapping, however. So I was hoping that it's relatively
straightforward to review in bulk. Happy to try and elaborate on the
changes or break them up into smaller commits if that helps, however.

---------

Signed-off-by: Johannes Marbach <n0-0ne+github@mailbox.org>

Author: Johennes

bindings/matrix-sdk-ffi/CHANGELOG.md

@@ -32,6 +32,8 @@ Additions:
 - Add `Client::observe_account_data_event` and `Client::observe_room_account_data_event` to
   subscribe to global and room account data changes.
   ([#4994](https://github.com/matrix-org/matrix-rust-sdk/pull/4994))
+- Add `Timeline::send_gallery` to send MSC4274-style galleries.
+  ([#5163](https://github.com/matrix-org/matrix-rust-sdk/pull/5163))
 
 Breaking changes:
 

bindings/matrix-sdk-ffi/Cargo.toml

@@ -17,8 +17,9 @@ release = true
 crate-type = ["cdylib", "staticlib"]
 
 [features]
-default = ["bundled-sqlite", "matrix-sdk-ui/unstable-msc4274"]
+default = ["bundled-sqlite", "unstable-msc4274"]
 bundled-sqlite = ["matrix-sdk/bundled-sqlite"]
+unstable-msc4274 = ["matrix-sdk-ui/unstable-msc4274"]
 
 [dependencies]
 anyhow.workspace = true

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

@@ -387,6 +387,8 @@ pub enum RoomMessageEventMessageType {
     Audio,
     Emote,
     File,
+    #[cfg(feature = "unstable-msc4274")]
+    Gallery,
     Image,
     Location,
     Notice,
@@ -403,6 +405,8 @@ impl From<RumaMessageType> for RoomMessageEventMessageType {
             RumaMessageType::Audio { .. } => Self::Audio,
             RumaMessageType::Emote { .. } => Self::Emote,
             RumaMessageType::File { .. } => Self::File,
+            #[cfg(feature = "unstable-msc4274")]
+            RumaMessageType::Gallery { .. } => Self::Gallery,
             RumaMessageType::Image { .. } => Self::Image,
             RumaMessageType::Location { .. } => Self::Location,
             RumaMessageType::Notice { .. } => Self::Notice,