Implement minimizing view movement on changes

Before this commit, windows were always left-aligned.

Now, when changing focus, if the window is fully visible, the view
doesn't move. If the window is not fully visible, the view is moved the
minimum amount.

1 files changed, 4 insertions, 0 deletions

diff --git a/src/animation.rs b/src/animation.rs
index 430e3516..e2b9dc39 100644
--- a/src/animation.rs
+++ b/src/animation.rs
@@ -46,4 +46,8 @@ impl Animation {
         let x = (passed / total).clamp(0., 1.);
         EaseOutCubic.y(x) * (self.to - self.from) + self.from
     }
+
+    pub fn to(&self) -> f64 {
+        self.to
+    }
 }