Take into account multiple scroll deltas within a single frame

Co-Authored-By: Antonio Scandurra <antonio@zed.dev>
2024-01-09 14:32:43 -05:00
parent 29ed067b26
commit 463270ed36
2 changed files with 74 additions and 51 deletions
@@ -178,6 +178,20 @@ impl ScrollDelta {
            ScrollDelta::Lines(delta) => point(line_height * delta.x, line_height * delta.y),
        }
    }
+
+    pub fn coalesce(self, other: ScrollDelta) -> ScrollDelta {
+        match (self, other) {
+            (ScrollDelta::Pixels(px_a), ScrollDelta::Pixels(px_b)) => {
+                ScrollDelta::Pixels(px_a + px_b)
+            }
+
+            (ScrollDelta::Lines(lines_a), ScrollDelta::Lines(lines_b)) => {
+                ScrollDelta::Lines(lines_a + lines_b)
+            }
+
+            _ => other,
+        }
+    }
 }

 #[derive(Clone, Debug, Default)]