refactor(wayland): update to 0.30.0

This is pretty much a rewrite of the Wayland client code for `wayland-client` and `wayland-protocols` v0.30.0, and `smithay-client-toolkit` v0.17.0

src/clients/wayland/wl_output.rs

@@ -0,0 +1,55 @@
+use super::Environment;
+use smithay_client_toolkit::output::{OutputHandler, OutputInfo, OutputState};
+use tracing::debug;
+use wayland_client::protocol::wl_output;
+use wayland_client::{Connection, QueueHandle};
+
+impl Environment {
+    pub fn output_info(&mut self) -> Vec<OutputInfo> {
+        self.output_state
+            .outputs()
+            .filter_map(|output| self.output_state.info(&output))
+            .collect()
+    }
+}
+
+// In order to use OutputDelegate, we must implement this trait to indicate when something has happened to an
+// output and to provide an instance of the output state to the delegate when dispatching events.
+impl OutputHandler for Environment {
+    // First we need to provide a way to access the delegate.
+    //
+    // This is needed because delegate implementations for handling events use the application data type in
+    // their function signatures. This allows the implementation to access an instance of the type.
+    fn output_state(&mut self) -> &mut OutputState {
+        &mut self.output_state
+    }
+
+    // Then there exist these functions that indicate the lifecycle of an output.
+    // These will be called as appropriate by the delegate implementation.
+
+    fn new_output(
+        &mut self,
+        _conn: &Connection,
+        _qh: &QueueHandle<Self>,
+        _output: wl_output::WlOutput,
+    ) {
+        debug!("Handler received new output");
+    }
+
+    fn update_output(
+        &mut self,
+        _conn: &Connection,
+        _qh: &QueueHandle<Self>,
+        _output: wl_output::WlOutput,
+    ) {
+    }
+
+    fn output_destroyed(
+        &mut self,
+        _conn: &Connection,
+        _qh: &QueueHandle<Self>,
+        _output: wl_output::WlOutput,
+    ) {
+        debug!("Handle received output destruction");
+    }
+}