Back and Forward keep to the focused file: Ctrl-o, Ctrl-i, the mouse's side buttons (now the tty's 8 and 9 too), the builtins and 9P go to the nearest place that way in this pane, else in this file in another pane, else of any file; JumpScope all takes every place in order as before

1 files changed, 10 insertions, 0 deletions

diff --git a/src/tty/tty.zig b/src/tty/tty.zig
index a067ffce..f0f41747 100644
--- a/src/tty/tty.zig
+++ b/src/tty/tty.zig
@@ -2452,6 +2452,9 @@ fn mouseEvent(m: vaxis.Mouse) ?pardes.Event {
         .wheel_down => .wheel_down,
         .wheel_left => .wheel_left,
         .wheel_right => .wheel_right,
+        // A mouse's side buttons, as xterm reports them: Back and Forward.
+        .button_8 => .back,
+        .button_9 => .forward,
         .none => .none, // button-less motion: hover tracking
         else => return null,
     };
@@ -2471,6 +2474,13 @@ fn mouseEvent(m: vaxis.Mouse) ?pardes.Event {
     } };
 }
 
+test "a mouse's side buttons, xterm's 8 and 9, are Back and Forward, as SDL's X1 and X2 are" {
+    for ([_]vaxis.Mouse.Button{ .button_8, .button_9 }, [_]pardes.Mouse.Button{ .back, .forward }) |from, to| {
+        const event = mouseEvent(.{ .col = 3, .row = 2, .button = from, .mods = .{}, .type = .press }).?;
+        try std.testing.expectEqual(to, event.mouse.button);
+    }
+}
+
 /// A blank whose ink alone changed is not sent: vaxis's render skips it
 /// (pardes's patch to Vaxis.zig in build.zig), since a blank's ink shows
 /// nowhere. Deciding that here cost every cell of every frame a look at the