From c81dc40ba38389295c7bc0af2a71b2d9a402cebd Mon Sep 17 00:00:00 2001
From: Shinyzenith <aakashsensharma@gmail.com>
Date: Mon, 30 Oct 2023 00:40:51 +0530
Subject: [PATCH] feat(pointer): cmd: add sloppy-focus

Signed-off-by: Shinyzenith <aakashsensharma@gmail.com>
---
 next/Config.zig          |  2 ++
 next/control/command.zig |  1 +
 next/control/cursor.zig  | 18 ++++++++++++++++++
 next/input/Cursor.zig    |  9 ++++++++-
 4 files changed, 29 insertions(+), 1 deletion(-)

diff --git a/next/Config.zig b/next/Config.zig
index 2f71940..6878964 100644
--- a/next/Config.zig
+++ b/next/Config.zig
@@ -38,6 +38,8 @@ toplevel_corner_radius: c_int = 20,
 toplevel_opacity: f32 = 1, // Ranges from 0 to 1
 toplevel_box_shadow_color: [4]f32 = .{ 0.0, 0.0, 0.0, 1.0 },
 
+focus_is_sloppy: bool = true,
+
 pub fn init() Self {
     log.debug("Initialized compositor config", .{});
     const self = .{};
diff --git a/next/control/command.zig b/next/control/command.zig
index 92a8380..ac75607 100644
--- a/next/control/command.zig
+++ b/next/control/command.zig
@@ -44,6 +44,7 @@ const commands = std.ComptimeStringMap(
         .{ "set-repeat-rate",               inputs.setRepeat         },
         .{ "warp-cursor",                   cursor.warpCursor        },
         .{ "hide-cursor",                   cursor.hideCursor        },
+        .{ "sloppy-focus",                  cursor.setSloppyFocus    },
     },
 );
 // zig fmt: on
diff --git a/next/control/cursor.zig b/next/control/cursor.zig
index 055a987..f2e602a 100644
--- a/next/control/cursor.zig
+++ b/next/control/cursor.zig
@@ -48,3 +48,21 @@ pub fn warpCursor(
         out.* = try std.fmt.allocPrint(allocator, "Failed to parse provided state.\n", .{});
     }
 }
+
+pub fn setSloppyFocus(
+    args: []const [:0]const u8,
+    out: *?[]const u8,
+) !void {
+    if (args.len < 2) return Error.NotEnoughArguments;
+    if (args.len > 2) return Error.TooManyArguments;
+
+    if (std.mem.eql(u8, "true", args[1])) {
+        server.config.focus_is_sloppy = true;
+    } else if (std.mem.eql(u8, "false", args[1])) {
+        server.config.focus_is_sloppy = false;
+    } else if (std.mem.eql(u8, "toggle", args[1])) {
+        server.config.focus_is_sloppy = !server.config.focus_is_sloppy;
+    } else {
+        out.* = try std.fmt.allocPrint(allocator, "Failed to parse focus state: {s}\n", .{args[1]});
+    }
+}
diff --git a/next/input/Cursor.zig b/next/input/Cursor.zig
index bdff520..302b8ee 100644
--- a/next/input/Cursor.zig
+++ b/next/input/Cursor.zig
@@ -115,6 +115,10 @@ pub fn handleButton(listener: *wl.Listener(*wlr.Pointer.event.Button), event: *w
     log.debug("Signal: wlr_pointer_button", .{});
 
     _ = self.server.seat.wlr_seat.pointerNotifyButton(event.time_msec, event.button, event.state);
+
+    if (Window.windowAt(self.server.wlr_cursor.x, self.server.wlr_cursor.y)) |window_data| {
+        self.server.seat.setFocus(window_data.window, window_data.surface);
+    }
 }
 
 pub fn handleFrame(listener: *wl.Listener(*wlr.Cursor), _: *wlr.Cursor) void {
@@ -146,11 +150,14 @@ pub fn processCursorMotion(self: *Self, time_msec: u32) void {
     //TODO: Handle cursor modes like move, resize, etc
     // for now we do very basic handling of a passthrough mode.
 
+    // Passthrough mode.
     if (Window.windowAt(self.server.wlr_cursor.x, self.server.wlr_cursor.y)) |window_data| {
         self.server.seat.wlr_seat.pointerNotifyEnter(window_data.surface, window_data.sx, window_data.sy);
         self.server.seat.wlr_seat.pointerNotifyMotion(time_msec, window_data.sx, window_data.sy);
 
-        self.server.seat.setFocus(window_data.window, window_data.surface);
+        if (self.server.config.focus_is_sloppy) {
+            self.server.seat.setFocus(window_data.window, window_data.surface);
+        }
     } else {
         self.server.wlr_xcursor_manager.setCursorImage("left_ptr", self.server.wlr_cursor);
         self.server.seat.wlr_seat.pointerClearFocus();