the rest of the events

src/au.zig

@@ -4,6 +4,8 @@ const builtin = @import("builtin");
 const vk = @import("vk");
 const c = @import("c.zig");
 
+const EventBus = @import("au/EventBus.zig");
+
 pub const use_debug_messenger = switch (builtin.mode) {
     .Debug, .ReleaseSafe => true,
     .ReleaseSmall, .ReleaseFast => false,
@@ -47,7 +49,6 @@ pub const B: *const BaseWrapper = &_bw;
 pub const I: *const InstanceProxy = &_ip;
 pub const D: *const DeviceProxy = &_dp;
 pub const W: *const Window = &_window;
-pub const E: *const EventBus = &_events;
 pub const Q: *const QueueProxy = &_qp;
 
 pub const device_config: *const CandidateDeviceInfo = &_dconfig;
@@ -385,7 +386,7 @@ pub fn debug_callback(
     return vk.FALSE;
 }
 
-const Window = struct {
+pub const Window = struct {
     const Self = @This();
 
     alloc: std.mem.Allocator,
@@ -427,110 +428,24 @@ const Window = struct {
     }
 };
 
-pub fn wait_events() void {
+pub fn wait_events() []const EventBus.Event {
     _events.clear();
     c.glfwWaitEvents();
+    return _events.events.items;
 }
 
-pub fn poll_events() void {
+pub fn poll_events() []const EventBus.Event {
     _events.clear();
     c.glfwPollEvents();
+    return _events.events.items;
 }
 
-pub fn wait_events_timeout(seconds: f64) void {
+pub fn wait_events_timeout(seconds: f64) []const EventBus.Event {
     _events.clear();
     c.glfwWaitEventsTimeout(seconds);
+    return _events.events.items;
 }
 
-const Event = union(enum) {
-    charMods: struct {
-        codepoint: u21,
-        mods: i32,
-    },
-    mouseButton: struct {
-        btn: u32, // todo enum
-        action: bool, // todo enum
-        mods: u32,
-    },
-};
-
-// pub const GLFWwindowposfun = ?*const fn (?*GLFWwindow, c_int, c_int) callconv(.C) void;
-// pub const GLFWwindowsizefun = ?*const fn (?*GLFWwindow, c_int, c_int) callconv(.C) void;
-// pub const GLFWwindowclosefun = ?*const fn (?*GLFWwindow) callconv(.C) void;
-// pub const GLFWwindowrefreshfun = ?*const fn (?*GLFWwindow) callconv(.C) void;
-// pub const GLFWwindowfocusfun = ?*const fn (?*GLFWwindow, c_int) callconv(.C) void;
-// pub const GLFWwindowiconifyfun = ?*const fn (?*GLFWwindow, c_int) callconv(.C) void;
-// pub const GLFWwindowmaximizefun = ?*const fn (?*GLFWwindow, c_int) callconv(.C) void;
-// pub const GLFWframebuffersizefun = ?*const fn (?*GLFWwindow, c_int, c_int) callconv(.C) void;
-// pub const GLFWwindowcontentscalefun = ?*const fn (?*GLFWwindow, f32, f32) callconv(.C) void;
-// pub const GLFWmousebuttonfun = ?*const fn (?*GLFWwindow, c_int, c_int, c_int) callconv(.C) void;
-// pub const GLFWcursorposfun = ?*const fn (?*GLFWwindow, f64, f64) callconv(.C) void;
-// pub const GLFWcursorenterfun = ?*const fn (?*GLFWwindow, c_int) callconv(.C) void;
-// pub const GLFWscrollfun = ?*const fn (?*GLFWwindow, f64, f64) callconv(.C) void;
-// pub const GLFWkeyfun = ?*const fn (?*GLFWwindow, c_int, c_int, c_int, c_int) callconv(.C) void;
-// pub const GLFWcharfun = ?*const fn (?*GLFWwindow, c_uint) callconv(.C) void;
-// pub const GLFWcharmodsfun = ?*const fn (?*GLFWwindow, c_uint, c_int) callconv(.C) void;
-// pub const GLFWdropfun = ?*const fn (?*GLFWwindow, c_int, [*c][*c]const u8) callconv(.C) void; // todo lifetime issues
-// pub const GLFWmonitorfun = ?*const fn (?*GLFWmonitor, c_int) callconv(.C) void;
-// pub const GLFWjoystickfun = ?*const fn (c_int, c_int) callconv(.C) void; // todo skip for now
-
-pub fn onCharMods(handle: ?*c.GLFWwindow, code: u32, mods: i32) callconv(.C) void {
-    const bus: *EventBus =
-        @alignCast(@ptrCast(c.glfwGetWindowUserPointer(handle)));
-    bus.events.append(bus.alloc, .{
-        .charMods = .{
-            .codepoint = @intCast(code),
-            .mods = mods,
-        },
-    }) catch unreachable; // todo circular queue; warn.
-}
-
-pub fn onMouseButton(handle: ?*c.GLFWwindow, btn: c_int, action: c_int, mods: c_int) callconv(.C) void {
-    const bus: *EventBus =
-        @alignCast(@ptrCast(c.glfwGetWindowUserPointer(handle)));
-    bus.events.append(bus.alloc, .{
-        .mouseButton = .{
-            .btn = @intCast(btn),
-            .action = action == c.GLFW_PRESS,
-            .mods = @intCast(mods),
-        },
-    }) catch unreachable; // todo circular queue; warn.
-}
-
-const EventBus = struct {
-    const Self = @This();
-
-    alloc: std.mem.Allocator,
-    events: std.ArrayListUnmanaged(Event), // todo bounded array?
-
-    pub fn init(alloc: std.mem.Allocator) Self {
-        return .{
-            .alloc = alloc,
-            .events = .{},
-        };
-    }
-
-    pub fn deinit(self: *EventBus) void {
-        self.events.deinit(self.alloc);
-    }
-
-    pub fn connect(self: *EventBus, window: *Window) !void {
-        c.glfwSetWindowUserPointer(window.handle, self);
-        _ = c.glfwSetCharModsCallback(window.handle, onCharMods);
-        _ = c.glfwSetMouseButtonCallback(window.handle, onMouseButton);
-    }
-
-    pub fn disconnect(_: *EventBus, window: *Window) !void {
-        // todo somehow prevent double-disconnect?
-        _ = c.glfwSetCharModsCallback(window.handle, null);
-        _ = c.glfwSetMouseButtonCallback(window.handle, null);
-    }
-
-    pub fn clear(self: *EventBus) void {
-        self.events.clearRetainingCapacity();
-    }
-};
-
 fn init_event_bus(alloc: std.mem.Allocator) !void {
     _events = EventBus.init(alloc);
     errdefer _events.deinit();

src/au/Bus.zig

@@ -0,0 +1,257 @@
+const std = @import("std");
+const c = @import("../c.zig");
+const Window = @import("../au.zig").Window;
+const Self = @This();
+
+alloc: std.mem.Allocator,
+events: std.ArrayListUnmanaged(Event), // todo bounded array?
+
+pub fn init(alloc: std.mem.Allocator) Self {
+    return .{
+        .alloc = alloc,
+        .events = .{},
+    };
+}
+
+pub fn deinit(self: *Self) void {
+    self.events.deinit(self.alloc);
+}
+
+pub fn connect(self: *Self, window: *Window) !void {
+    // todo somehow prevent double-connect?
+    c.glfwSetWindowUserPointer(window.handle, self);
+    _ = c.glfwSetWindowPosCallback(window.handle, onWindowPos);
+    _ = c.glfwSetWindowSizeCallback(window.handle, onWindowSize);
+    _ = c.glfwSetWindowCloseCallback(window.handle, onWindowClose);
+    _ = c.glfwSetWindowRefreshCallback(window.handle, onWindowRefresh);
+    _ = c.glfwSetWindowFocusCallback(window.handle, onWindowFocus);
+    _ = c.glfwSetWindowIconifyCallback(window.handle, onWindowIconify);
+    _ = c.glfwSetWindowMaximizeCallback(window.handle, onWindowMaximize);
+    _ = c.glfwSetFramebufferSizeCallback(window.handle, onFramebufferSize);
+    _ = c.glfwSetWindowContentScaleCallback(window.handle, onWindowContentScale);
+    _ = c.glfwSetMouseButtonCallback(window.handle, onMouseButton);
+    _ = c.glfwSetCursorPosCallback(window.handle, onCursorPos);
+    _ = c.glfwSetCursorEnterCallback(window.handle, onCursorEnter);
+    _ = c.glfwSetScrollCallback(window.handle, onScroll);
+    _ = c.glfwSetKeyCallback(window.handle, onKey);
+    _ = c.glfwSetCharModsCallback(window.handle, onCharMods);
+    // _ = c.glfwSetDropCallback(window.handle, onDrop);
+}
+
+pub fn disconnect(_: *Self, window: *Window) !void {
+    // todo somehow prevent double-disconnect?
+    c.glfwSetWindowUserPointer(window.handle, null);
+    _ = c.glfwSetWindowPosCallback(window.handle, null);
+    _ = c.glfwSetWindowSizeCallback(window.handle, null);
+    _ = c.glfwSetWindowCloseCallback(window.handle, null);
+    _ = c.glfwSetWindowRefreshCallback(window.handle, null);
+    _ = c.glfwSetWindowFocusCallback(window.handle, null);
+    _ = c.glfwSetWindowIconifyCallback(window.handle, null);
+    _ = c.glfwSetWindowMaximizeCallback(window.handle, null);
+    _ = c.glfwSetFramebufferSizeCallback(window.handle, null);
+    _ = c.glfwSetWindowContentScaleCallback(window.handle, null);
+    _ = c.glfwSetMouseButtonCallback(window.handle, null);
+    _ = c.glfwSetCursorPosCallback(window.handle, null);
+    _ = c.glfwSetCursorEnterCallback(window.handle, null);
+    _ = c.glfwSetScrollCallback(window.handle, null);
+    _ = c.glfwSetKeyCallback(window.handle, null);
+    _ = c.glfwSetCharModsCallback(window.handle, null);
+    // _ = c.glfwSetDropCallback(window.handle, null);
+}
+
+pub fn clear(self: *Self) void {
+    self.events.clearRetainingCapacity();
+}
+
+fn getBus(handle: ?*c.GLFWwindow) *Self {
+    return @alignCast(@ptrCast(c.glfwGetWindowUserPointer(handle)));
+}
+
+pub const Event = union(enum) {
+    const WindowPos = struct { x: i32, y: i32 };
+    const WindowSize = struct { x: i32, y: i32 };
+    const WindowClose = struct {};
+    const WindowRefresh = struct {};
+    const WindowFocus = struct { focused: bool };
+    const WindowIconify = struct { iconified: bool };
+    const WindowMaximize = struct { maximized: bool };
+    const FramebufferSize = struct { x: i32, y: i32 };
+    const WindowContentScale = struct { x: f32, y: f32 };
+    const MouseButton = struct {
+        button: c_int, // todo enum
+        action: c_int, // todo enum
+        mods: c_int, // todo bitmask
+    };
+    const CursorPos = struct { x: f64, y: f64 };
+    const CursorEnter = struct { entered: bool };
+    const Scroll = struct { dx: f64, dy: f64 };
+    const Key = struct {
+        key: c_int, // todo enum
+        scan: c_int, // todo ???
+        action: c_int, // todo enum
+        mods: c_int, // todo bitmask
+    };
+    const Char = struct {
+        code: u21,
+    };
+    const CharMods = struct {
+        code: u21,
+        mods: c_int, // todo bitmask
+    };
+    const Drop = struct {
+        paths: []const []const u8, // todo lifetime issues
+    };
+
+    windowPos: WindowPos,
+    windowSize: WindowSize,
+    windowClose: WindowClose,
+    windowRefresh: WindowRefresh,
+    windowFocus: WindowFocus,
+    windowIconify: WindowIconify,
+    windowMaximize: WindowMaximize,
+    framebufferSize: FramebufferSize,
+    windowContentScale: WindowContentScale,
+    mouseButton: MouseButton,
+    cursorPos: CursorPos,
+    cursorEnter: CursorEnter,
+    scroll: Scroll,
+    key: Key,
+    char: Char,
+    charMods: CharMods,
+    drop: Drop,
+};
+
+fn onWindowPos(handle: ?*c.GLFWwindow, x: c_int, y: c_int) callconv(.C) void {
+    const bus = getBus(handle);
+    bus.events.append(bus.alloc, .{
+        .windowPos = .{
+            .x = @intCast(x),
+            .y = @intCast(y),
+        },
+    }) catch unreachable; // todo circular queue; warn
+}
+fn onWindowSize(handle: ?*c.GLFWwindow, x: c_int, y: c_int) callconv(.C) void {
+    const bus = getBus(handle);
+    bus.events.append(bus.alloc, .{
+        .windowSize = .{
+            .x = @intCast(x),
+            .y = @intCast(y),
+        },
+    }) catch unreachable; // todo circular queue; warn
+}
+fn onWindowClose(handle: ?*c.GLFWwindow) callconv(.C) void {
+    const bus = getBus(handle);
+    bus.events.append(bus.alloc, .{
+        .windowClose = .{},
+    }) catch unreachable; // todo circular queue; warn
+}
+fn onWindowRefresh(handle: ?*c.GLFWwindow) callconv(.C) void {
+    const bus = getBus(handle);
+    bus.events.append(bus.alloc, .{
+        .windowRefresh = .{},
+    }) catch unreachable; // todo circular queue; warn
+}
+fn onWindowFocus(handle: ?*c.GLFWwindow, focused: c_int) callconv(.C) void {
+    const bus = getBus(handle);
+    bus.events.append(bus.alloc, .{
+        .windowFocus = .{
+            .focused = focused == c.GLFW_TRUE,
+        },
+    }) catch unreachable; // todo circular queue; warn
+}
+fn onWindowIconify(handle: ?*c.GLFWwindow, iconified: c_int) callconv(.C) void {
+    const bus = getBus(handle);
+    bus.events.append(bus.alloc, .{
+        .windowIconify = .{
+            .iconified = iconified == c.GLFW_TRUE,
+        },
+    }) catch unreachable; // todo circular queue; warn
+}
+fn onWindowMaximize(handle: ?*c.GLFWwindow, maximized: c_int) callconv(.C) void {
+    const bus = getBus(handle);
+    bus.events.append(bus.alloc, .{
+        .windowMaximize = .{
+            .maximized = maximized == c.GLFW_TRUE,
+        },
+    }) catch unreachable; // todo circular queue; warn
+}
+fn onFramebufferSize(handle: ?*c.GLFWwindow, x: c_int, y: c_int) callconv(.C) void {
+    const bus = getBus(handle);
+    bus.events.append(bus.alloc, .{
+        .framebufferSize = .{
+            .x = @intCast(x),
+            .y = @intCast(y),
+        },
+    }) catch unreachable; // todo circular queue; warn
+}
+fn onWindowContentScale(handle: ?*c.GLFWwindow, x: f32, y: f32) callconv(.C) void {
+    const bus = getBus(handle);
+    bus.events.append(bus.alloc, .{
+        .windowContentScale = .{
+            .x = x,
+            .y = y,
+        },
+    }) catch unreachable; // todo circular queue; warn
+}
+fn onMouseButton(handle: ?*c.GLFWwindow, button: c_int, action: c_int, mods: c_int) callconv(.C) void {
+    const bus = getBus(handle);
+    bus.events.append(bus.alloc, .{
+        .mouseButton = .{
+            .button = button,
+            .action = action,
+            .mods = mods,
+        },
+    }) catch unreachable; // todo circular queue; warn
+}
+fn onCursorPos(handle: ?*c.GLFWwindow, x: f64, y: f64) callconv(.C) void {
+    const bus = getBus(handle);
+    bus.events.append(bus.alloc, .{
+        .cursorPos = .{
+            .x = x,
+            .y = y,
+        },
+    }) catch unreachable; // todo circular queue; warn
+}
+fn onCursorEnter(handle: ?*c.GLFWwindow, entered: c_int) callconv(.C) void {
+    const bus = getBus(handle);
+    bus.events.append(bus.alloc, .{
+        .cursorEnter = .{
+            .entered = entered == c.GLFW_TRUE,
+        },
+    }) catch unreachable; // todo circular queue; warn
+}
+fn onScroll(handle: ?*c.GLFWwindow, dx: f64, dy: f64) callconv(.C) void {
+    const bus = getBus(handle);
+    bus.events.append(bus.alloc, .{
+        .scroll = .{
+            .dx = dx,
+            .dy = dy,
+        },
+    }) catch unreachable; // todo circular queue; warn
+}
+fn onKey(handle: ?*c.GLFWwindow, key: c_int, scan: c_int, action: c_int, mods: c_int) callconv(.C) void {
+    const bus = getBus(handle);
+    bus.events.append(bus.alloc, .{
+        .key = .{
+            .key = key,
+            .scan = scan,
+            .action = action,
+            .mods = mods,
+        },
+    }) catch unreachable; // todo circular queue; warn
+}
+fn onCharMods(handle: ?*c.GLFWwindow, code: c_uint, mods: c_int) callconv(.C) void {
+    const bus = getBus(handle);
+    bus.events.append(bus.alloc, .{
+        .charMods = .{
+            .code = @intCast(code),
+            .mods = mods,
+        },
+    }) catch unreachable; // todo circular queue; warn
+}
+// fn onDrop(handle: ?*c.GLFWwindow, count: c_int, paths: [*c][*c]const u8) callconv(.C) void {
+//     const bus = getBus(handle);
+//     bus.events.append(bus.alloc, .{
+//         .drop = .{},
+//     }) catch unreachable; // todo circular queue; warn
+// }

src/main.zig

@@ -102,10 +102,10 @@ pub fn main() !void {
     // std.debug.print("Initialized!!\n", .{ });
 
     while (!au.W.should_close()) {
-        au.wait_events();
-        // if (au.E.events.items.len > 0) {
-        //     std.debug.print("Events: {any}\n", .{au.E.events.items});
-        // }
+        for (au.wait_events()) |event| switch (event) {
+            .charMods => |e| std.debug.print("{any}\n", .{e}),
+            .mouseButton => |e| std.debug.print("{any}\n", .{e}),
+        };
     }
 
     try au.D.deviceWaitIdle();