From fe6ba027091a7247a0ad21240560d5d100f00f31 Mon Sep 17 00:00:00 2001
From: Mitchell Hashimoto <mitchell.hashimoto@gmail.com>
Date: Fri, 26 Aug 2022 14:59:44 -0700
Subject: [PATCH] sgr pixels mouse report format

---
 src/Window.zig            | 15 ++++++++++++++-
 src/terminal/Terminal.zig |  2 --
 src/terminal/ansi.zig     |  3 +++
 3 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/src/Window.zig b/src/Window.zig
index 6a7c0f042..46e043027 100644
--- a/src/Window.zig
+++ b/src/Window.zig
@@ -933,7 +933,19 @@ fn mouseReport(
             try self.queueWrite(resp);
         },
 
-        else => @panic("TODO"),
+        .sgr_pixels => {
+            // Response always is at least 4 chars, so this leaves the
+            // remainder for numbers which are very large...
+            var buf: [32]u8 = undefined;
+            const resp = try std.fmt.bufPrint(&buf, "\x1B[<{d};{d};{d}{c}", .{
+                button_code,
+                pos.xpos,
+                pos.ypos,
+                @as(u8, if (action == .release) 'm' else 'M'),
+            });
+
+            try self.queueWrite(resp);
+        },
     }
 }
 
@@ -1513,6 +1525,7 @@ pub fn setMode(self: *Window, mode: terminal.Mode, enabled: bool) !void {
         .mouse_format_utf8 => self.terminal.modes.mouse_format = if (enabled) .utf8 else .x10,
         .mouse_format_sgr => self.terminal.modes.mouse_format = if (enabled) .sgr else .x10,
         .mouse_format_urxvt => self.terminal.modes.mouse_format = if (enabled) .urxvt else .x10,
+        .mouse_format_sgr_pixels => self.terminal.modes.mouse_format = if (enabled) .sgr_pixels else .x10,
 
         else => if (enabled) log.warn("unimplemented mode: {}", .{mode}),
     }
diff --git a/src/terminal/Terminal.zig b/src/terminal/Terminal.zig
index c17172683..0433ed553 100644
--- a/src/terminal/Terminal.zig
+++ b/src/terminal/Terminal.zig
@@ -96,8 +96,6 @@ pub const MouseFormat = enum(u3) {
     utf8 = 1, // 1005
     sgr = 2, // 1006
     urxvt = 3, // 1015
-
-    // TODO:
     sgr_pixels = 4, // 1016
 };
 
diff --git a/src/terminal/ansi.zig b/src/terminal/ansi.zig
index 31bbcd8cd..bb2a962e8 100644
--- a/src/terminal/ansi.zig
+++ b/src/terminal/ansi.zig
@@ -89,6 +89,9 @@ pub const Mode = enum(u16) {
     /// Report mouse position in the urxvt format.
     mouse_format_urxvt = 1015,
 
+    /// Report mouse position in the SGR format as pixels, instead of cells.
+    mouse_format_sgr_pixels = 1016,
+
     /// Alternate screen mode with save cursor and clear on enter.
     alt_screen_save_cursor_clear_enter = 1049,