fix(windows): preserve remote multiline paste (#3282)

refs #3209

Co-authored-by: akbash-bot <300245827+akbash-bot@users.noreply.github.com>

1 files changed, 59 insertions, 6 deletions

diff --git a/src/client/input/windows_vti.rs b/src/client/input/windows_vti.rs
index 2f469161..ce322d27 100644
--- a/src/client/input/windows_vti.rs
+++ b/src/client/input/windows_vti.rs
@@ -334,13 +334,13 @@ impl WindowsInputPump {
 
     fn process_raw_events(
         &mut self,
-        events: Vec<crate::raw_input::RawInputEvent>,
+        mut events: Vec<crate::raw_input::RawInputEvent>,
     ) -> Vec<crate::protocol::ClientInputEvent> {
-        if events
-            .iter()
-            .any(|event| matches!(event, crate::raw_input::RawInputEvent::Paste(_)))
-        {
-            self.paste_from_win32_key_records = false;
+        for event in &mut events {
+            if let crate::raw_input::RawInputEvent::Paste(text) = event {
+                decode_windows_terminal_paste_enters(text);
+                self.paste_from_win32_key_records = false;
+            }
         }
         Self::raw_events_to_client_events(events)
     }
@@ -387,6 +387,16 @@ impl PlatformInputItem {
     }
 }
 
+fn decode_windows_terminal_paste_enters(text: &mut String) {
+    const ENTER_REPORT_PAIR: &str = "\x1b[13;28;13;1;0;1_\x1b[13;28;13;0;0;1_";
+
+    // Windows Terminal can encode pasted newlines as an adjacent unmodified
+    // Enter press/release pair. Keep every other report-shaped payload opaque.
+    if text.contains(ENTER_REPORT_PAIR) {
+        *text = text.replace(ENTER_REPORT_PAIR, "\r");
+    }
+}
+
 #[cfg(test)]
 #[derive(Default)]
 struct WindowsInputTranslator {
@@ -1368,6 +1378,49 @@ mod tests {
     }
 
     #[test]
+    fn vti_remote_bracketed_paste_decodes_reported_enter_records() {
+        let records = concat!(
+            "\x1b[200~ - line one",
+            "\x1b[13;28;13;1;0;1_\x1b[13;28;13;0;0;1_",
+            "  - line two",
+            "\x1b[13;28;13;1;0;1_\x1b[13;28;13;0;0;1_",
+            "  - line three\x1b[201~",
+        )
+        .chars()
+        .map(key_char);
+
+        assert_eq!(
+            translate(records),
+            vec![crate::protocol::ClientInputEvent::Paste {
+                text: " - line one\r  - line two\r  - line three".into(),
+            }]
+        );
+    }
+
+    #[test]
+    fn vti_remote_paste_keeps_incomplete_enter_report_pairs_opaque() {
+        let records = concat!(
+            "\x1b[200~before",
+            "\x1b[13;28;13;1;0;1_middle\x1b[13;28;13;0;0;1_",
+            "after\x1b[201~",
+        )
+        .chars()
+        .map(key_char);
+
+        assert_eq!(
+            translate(records),
+            vec![crate::protocol::ClientInputEvent::Paste {
+                text: concat!(
+                    "before",
+                    "\x1b[13;28;13;1;0;1_middle\x1b[13;28;13;0;0;1_",
+                    "after",
+                )
+                .into(),
+            }]
+        );
+    }
+
+    #[test]
     fn vti_win32_input_mode_decoded_paste_handles_shift_repeats_and_releases() {
         let mut records = win32_input_mode_encoded_key_bytes(b"\x1b[200~");
         records.extend(win32_input_mode_encoded_record(WindowsKeyRecord {