Alt/Option-click is B2 and Super/Cmd-click is B3, sweeps included, as in plan9port: a one-button trackpad can execute and look

The core decides it at the press (mouse.emulateButton) and keeps it to the
release, whatever keys are let go between. Ctrl-click stays a definition,
and a program tracking the mouse still gets the plain click (Alt as its
meta, Super as nothing). The SDL, macOS and web shells now pass Super; the
macOS and web shells pass Alt on a click too. A terminal's mouse report has
no Super bit, so in a terminal only Alt-click is B2.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

1 files changed, 6 insertions, 0 deletions

diff --git a/src/pardes.zig b/src/pardes.zig
index 41ed0e5a..38373266 100644
--- a/src/pardes.zig
+++ b/src/pardes.zig
@@ -3515,6 +3515,9 @@ pub const Mouse = struct {
     shift: bool = false,
     /// Alt, which xterm's mouse reports call meta.
     alt: bool = false,
+    /// Super: Cmd on a Mac, the Windows key elsewhere. A terminal's mouse
+    /// report has no such bit, so only a pixel shell sets it.
+    super: bool = false,
     body_hit: ?BodyHit = null,
     tag_hit: ?TagHit = null,
     /// A pixel frontend's press on the rule it draws at the top of this row,
@@ -4414,6 +4417,9 @@ pub const Pardes = struct {
     /// The last plain B1 click, for acme's double-click (text.c:881,
     /// textselect: a second click at the same point within 500 ms).
     last_click: ?struct { id: usize, on_tag: bool, row: i32, col: i32, ms: i64 } = null,
+    /// The button an Alt- or Super-click of button 1 stands for, from its
+    /// press through its release (mouse.emulateButton).
+    click_as: ?Mouse.Button = null,
     /// A B1 chord's edits share the undo point it took (mouse.zig).
     chord_hold: bool = false,
     /// The look just run found nothing (look.zig missed).