feat(cliprdr-native): add stub

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>

crates/ironrdp-cliprdr-native/Cargo.toml

@@ -16,11 +16,13 @@ categories.workspace = true
 doctest = false
 test = false
 
-[target.'cfg(windows)'.dependencies]
+[dependencies]
 ironrdp-cliprdr.workspace = true
 ironrdp-svc.workspace = true
-thiserror.workspace = true
 tracing.workspace = true
+
+[target.'cfg(windows)'.dependencies]
+thiserror.workspace = true
 windows = { version = "0.48", features = [
     "Win32_Foundation",
     "Win32_System_DataExchange",

crates/ironrdp-cliprdr-native/src/lib.rs

@@ -14,3 +14,6 @@
 mod windows;
 #[cfg(windows)]
 pub use crate::windows::{WinClipboard, WinCliprdrError, WinCliprdrResult};
+
+mod stub;
+pub use crate::stub::StubClipboard;

crates/ironrdp-cliprdr-native/src/stub.rs

@@ -0,0 +1,92 @@
+use ironrdp_cliprdr::backend::{CliprdrBackend, CliprdrBackendFactory};
+use ironrdp_cliprdr::pdu::{
+    ClipboardFormat, ClipboardGeneralCapabilityFlags, FileContentsRequest, FileContentsResponse, FormatDataRequest,
+    FormatDataResponse, LockDataId,
+};
+use ironrdp_svc::impl_as_any;
+
+use tracing::debug;
+
+pub struct StubClipboard {}
+
+impl StubClipboard {
+    pub fn new() -> Self {
+        Self {}
+    }
+
+    pub fn backend_factory(&self) -> Box<dyn CliprdrBackendFactory + Send> {
+        Box::new(StubCliprdrBackendFactory {})
+    }
+}
+
+impl Default for StubClipboard {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
+struct StubCliprdrBackendFactory {}
+
+impl CliprdrBackendFactory for StubCliprdrBackendFactory {
+    fn build_cliprdr_backend(&self) -> Box<dyn CliprdrBackend> {
+        Box::new(StubCliprdrBackend::new())
+    }
+}
+
+#[derive(Debug)]
+pub(crate) struct StubCliprdrBackend {}
+
+impl_as_any!(StubCliprdrBackend);
+
+impl StubCliprdrBackend {
+    pub(crate) fn new() -> Self {
+        Self {}
+    }
+}
+
+impl CliprdrBackend for StubCliprdrBackend {
+    fn temporary_directory(&self) -> &str {
+        ".cliprdr"
+    }
+
+    fn client_capabilities(&self) -> ClipboardGeneralCapabilityFlags {
+        // No additional capabilities yet
+        ClipboardGeneralCapabilityFlags::empty()
+    }
+
+    fn on_process_negotiated_capabilities(&mut self, capabilities: ClipboardGeneralCapabilityFlags) {
+        debug!(?capabilities);
+    }
+
+    fn on_remote_copy(&mut self, available_formats: &[ClipboardFormat]) {
+        debug!(?available_formats);
+    }
+
+    fn on_format_data_request(&mut self, request: FormatDataRequest) {
+        debug!(?request);
+    }
+
+    fn on_format_data_response(&mut self, response: FormatDataResponse<'_>) {
+        debug!(?response);
+    }
+
+    fn on_file_contents_request(&mut self, request: FileContentsRequest) {
+        debug!(?request);
+    }
+
+    fn on_file_contents_response(&mut self, response: FileContentsResponse<'_>) {
+        debug!(?response);
+    }
+
+    fn on_lock(&mut self, data_id: LockDataId) {
+        debug!(?data_id);
+    }
+
+    fn on_unlock(&mut self, data_id: LockDataId) {
+        debug!(?data_id);
+    }
+
+    fn on_request_format_list(&mut self) {
+        debug!("on_request_format_list");
+    }
+}