From 33d43dc6d117bd765eec64b9dadd4765b5adb9ff Mon Sep 17 00:00:00 2001
From: Tim Culverhouse <tim@timculverhouse.com>
Date: Wed, 24 Jan 2024 13:15:04 -0600
Subject: [PATCH] vaxis: implement osc9 and osc777 notifications

Signed-off-by: Tim Culverhouse <tim@timculverhouse.com>
---
 README.md               |  4 ++--
 examples/text_input.zig |  2 ++
 src/cell.zig            |  2 ++
 src/ctlseqs.zig         |  2 ++
 src/vaxis.zig           | 18 ++++++++++++++++++
 5 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 21934a2..95a0c02 100644
--- a/README.md
+++ b/README.md
@@ -24,8 +24,8 @@ Contributions are welcome.
 | Styled Underlines              |  ✅   |    ✅    |    ✅     |
 | Mouse Shapes (OSC 22)          |  ✅   | planned  |    ❌     |
 | System Clipboard (OSC 52)      |  ✅   | planned  |    ❌     |
-| System Notifications (OSC 9)   |  ✅   | planned  |    ❌     |
-| System Notifications (OSC 777) |  ✅   | planned  |    ❌     |
+| System Notifications (OSC 9)   |  ✅   |    ✅    |    ❌     |
+| System Notifications (OSC 777) |  ✅   |    ✅    |    ❌     |
 | Synchronized Output (DEC 2026) |  ✅   |    ✅    |    ✅     |
 | Unicode Core (DEC 2027)        |  ✅   |    ✅    |    ❌     |
 | Color Mode Updates (DEC 2031)  |  ✅   | planned  |    ❌     |
diff --git a/examples/text_input.zig b/examples/text_input.zig
index 626c27a..7ef5597 100644
--- a/examples/text_input.zig
+++ b/examples/text_input.zig
@@ -71,6 +71,8 @@ pub fn main() !void {
                     break :outer;
                 } else if (key.matches('l', .{ .ctrl = true })) {
                     vx.queueRefresh();
+                } else if (key.matches('n', .{ .ctrl = true })) {
+                    try vx.notify("vaxis", "hello from vaxis");
                 } else {
                     try text_input.update(.{ .key_press = key });
                 }
diff --git a/src/cell.zig b/src/cell.zig
index 7c3daef..c8c7b8e 100644
--- a/src/cell.zig
+++ b/src/cell.zig
@@ -22,6 +22,8 @@ pub const Style = struct {
     bg: Color = .default,
     ul: Color = .default,
     ul_style: Underline = .off,
+    // TODO: url should maybe go outside of style. We'll need to allocate these
+    // in the internal screen
     url: ?[]const u8 = null,
     url_params: ?[]const u8 = null,
 
diff --git a/src/ctlseqs.zig b/src/ctlseqs.zig
index faf2b7d..f4e6cea 100644
--- a/src/ctlseqs.zig
+++ b/src/ctlseqs.zig
@@ -76,3 +76,5 @@ pub const strikethrough_reset = "\x1b[29m";
 // OSC sequences
 pub const osc8 = "\x1b]8;{s};{s}\x1b\\";
 pub const osc8_clear = "\x1b]8;;\x1b\\";
+pub const osc9_notify = "\x1b]9;{s}\x1b\\";
+pub const osc777_notify = "\x1b]777;notify;{s};{s}\x1b\\";
diff --git a/src/vaxis.zig b/src/vaxis.zig
index 332b390..915a2be 100644
--- a/src/vaxis.zig
+++ b/src/vaxis.zig
@@ -472,6 +472,24 @@ pub fn Vaxis(comptime T: type) type {
             );
             try self.tty.?.flush();
         }
+
+        /// send a system notification
+        pub fn notify(self: *Self, title: ?[]const u8, body: []const u8) !void {
+            if (self.tty == null) return;
+            if (title) |t| {
+                try std.fmt.format(
+                    self.tty.?.buffered_writer.writer(),
+                    ctlseqs.osc777_notify,
+                    .{ t, body },
+                );
+            } else {
+                try std.fmt.format(
+                    self.tty.?.buffered_writer.writer(),
+                    ctlseqs.osc9_notify,
+                    .{body},
+                );
+            }
+        }
     };
 }