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Windows: Refactoring (#9580)

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Aggregate `DefWindowProc` calls with individual handler return value as
`Option<isize>`

Release Notes:

- N/A
This commit is contained in:
白山風露 2024-03-21 05:36:28 +09:00 • committed by GitHub
parent 78e116c111
commit b1feeb9f29
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1 changed files with 131 additions and 152 deletions
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277
crates/gpui/src/platform/windows/window.rs
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@ -164,7 +164,7 @@ impl WindowsWindowInner {
let height = self.title_bar_height(); let height = self.title_bar_height();
let mut rect = RECT::default(); let mut rect = RECT::default();
unsafe { GetClientRect(self.hwnd, &mut rect) }?; unsafe { GetClientRect(self.hwnd, &mut rect) }?;
rect.bottom = rect.top + ((height.0 as f32 * self.scale_factor.get()).round() as i32); rect.bottom = rect.top + ((height.0 * self.scale_factor.get()).round() as i32);
Ok(rect) Ok(rect)
} }
@ -190,79 +190,68 @@ impl WindowsWindowInner {
fn handle_msg(&self, msg: u32, wparam: WPARAM, lparam: LPARAM) -> LRESULT { fn handle_msg(&self, msg: u32, wparam: WPARAM, lparam: LPARAM) -> LRESULT {
log::debug!("msg: {msg}, wparam: {}, lparam: {}", wparam.0, lparam.0); log::debug!("msg: {msg}, wparam: {}, lparam: {}", wparam.0, lparam.0);
match msg { let handled = match msg {
WM_ACTIVATE => self.handle_activate_msg(msg, wparam, lparam), WM_ACTIVATE => self.handle_activate_msg(),
WM_CREATE => self.handle_create_msg(lparam), WM_CREATE => self.handle_create_msg(lparam),
WM_SETFOCUS => self.handle_set_focus_msg(msg, wparam, lparam), WM_SETFOCUS => self.handle_set_focus_msg(msg, wparam, lparam),
WM_MOVE => self.handle_move_msg(lparam), WM_MOVE => self.handle_move_msg(lparam),
WM_SIZE => self.handle_size_msg(lparam), WM_SIZE => self.handle_size_msg(lparam),
WM_NCCALCSIZE => self.handle_calc_client_size(msg, wparam, lparam), WM_NCCALCSIZE => self.handle_calc_client_size(wparam, lparam),
WM_DPICHANGED => self.handle_dpi_changed_msg(wparam, lparam), WM_DPICHANGED => self.handle_dpi_changed_msg(wparam, lparam),
WM_NCHITTEST => self.handle_hit_test_msg(msg, wparam, lparam), WM_NCHITTEST => self.handle_hit_test_msg(msg, wparam, lparam),
WM_PAINT => self.handle_paint_msg(), WM_PAINT => self.handle_paint_msg(),
WM_CLOSE => self.handle_close_msg(msg, wparam, lparam), WM_CLOSE => self.handle_close_msg(),
WM_DESTROY => self.handle_destroy_msg(), WM_DESTROY => self.handle_destroy_msg(),
WM_MOUSEMOVE => self.handle_mouse_move_msg(lparam, wparam), WM_MOUSEMOVE => self.handle_mouse_move_msg(lparam, wparam),
WM_NCMOUSEMOVE => self.handle_nc_mouse_move_msg(msg, wparam, lparam), WM_NCMOUSEMOVE => self.handle_nc_mouse_move_msg(lparam),
WM_NCLBUTTONDOWN => { WM_NCLBUTTONDOWN => self.handle_nc_mouse_down_msg(MouseButton::Left, wparam, lparam),
self.handle_nc_mouse_down_msg(MouseButton::Left, msg, wparam, lparam) WM_NCRBUTTONDOWN => self.handle_nc_mouse_down_msg(MouseButton::Right, wparam, lparam),
} WM_NCMBUTTONDOWN => self.handle_nc_mouse_down_msg(MouseButton::Middle, wparam, lparam),
WM_NCRBUTTONDOWN => { WM_NCLBUTTONUP => self.handle_nc_mouse_up_msg(MouseButton::Left, wparam, lparam),
self.handle_nc_mouse_down_msg(MouseButton::Right, msg, wparam, lparam) WM_NCRBUTTONUP => self.handle_nc_mouse_up_msg(MouseButton::Right, wparam, lparam),
} WM_NCMBUTTONUP => self.handle_nc_mouse_up_msg(MouseButton::Middle, wparam, lparam),
WM_NCMBUTTONDOWN => {
self.handle_nc_mouse_down_msg(MouseButton::Middle, msg, wparam, lparam)
}
WM_NCLBUTTONUP => self.handle_nc_mouse_up_msg(MouseButton::Left, msg, wparam, lparam),
WM_NCRBUTTONUP => self.handle_nc_mouse_up_msg(MouseButton::Right, msg, wparam, lparam),
WM_NCMBUTTONUP => self.handle_nc_mouse_up_msg(MouseButton::Middle, msg, wparam, lparam),
WM_LBUTTONDOWN => self.handle_mouse_down_msg(MouseButton::Left, lparam), WM_LBUTTONDOWN => self.handle_mouse_down_msg(MouseButton::Left, lparam),
WM_RBUTTONDOWN => self.handle_mouse_down_msg(MouseButton::Right, lparam), WM_RBUTTONDOWN => self.handle_mouse_down_msg(MouseButton::Right, lparam),
WM_MBUTTONDOWN => self.handle_mouse_down_msg(MouseButton::Middle, lparam), WM_MBUTTONDOWN => self.handle_mouse_down_msg(MouseButton::Middle, lparam),
WM_XBUTTONDOWN => { WM_XBUTTONDOWN => {
let nav_dir = match wparam.hiword() { let nav_dir = match wparam.hiword() {
XBUTTON1 => Some(NavigationDirection::Forward), XBUTTON1 => NavigationDirection::Forward,
XBUTTON2 => Some(NavigationDirection::Back), XBUTTON2 => NavigationDirection::Back,
_ => None, _ => return LRESULT(1),
}; };
if let Some(nav_dir) = nav_dir {
self.handle_mouse_down_msg(MouseButton::Navigate(nav_dir), lparam) self.handle_mouse_down_msg(MouseButton::Navigate(nav_dir), lparam)
} else {
LRESULT(1)
}
} }
WM_LBUTTONUP => self.handle_mouse_up_msg(MouseButton::Left, lparam), WM_LBUTTONUP => self.handle_mouse_up_msg(MouseButton::Left, lparam),
WM_RBUTTONUP => self.handle_mouse_up_msg(MouseButton::Right, lparam), WM_RBUTTONUP => self.handle_mouse_up_msg(MouseButton::Right, lparam),
WM_MBUTTONUP => self.handle_mouse_up_msg(MouseButton::Middle, lparam), WM_MBUTTONUP => self.handle_mouse_up_msg(MouseButton::Middle, lparam),
WM_XBUTTONUP => { WM_XBUTTONUP => {
let nav_dir = match wparam.hiword() { let nav_dir = match wparam.hiword() {
XBUTTON1 => Some(NavigationDirection::Back), XBUTTON1 => NavigationDirection::Back,
XBUTTON2 => Some(NavigationDirection::Forward), XBUTTON2 => NavigationDirection::Forward,
_ => None, _ => return LRESULT(1),
}; };
if let Some(nav_dir) = nav_dir {
self.handle_mouse_up_msg(MouseButton::Navigate(nav_dir), lparam) self.handle_mouse_up_msg(MouseButton::Navigate(nav_dir), lparam)
} else {
LRESULT(1)
}
} }
WM_MOUSEWHEEL => self.handle_mouse_wheel_msg(wparam, lparam), WM_MOUSEWHEEL => self.handle_mouse_wheel_msg(wparam, lparam),
WM_MOUSEHWHEEL => self.handle_mouse_horizontal_wheel_msg(wparam, lparam), WM_MOUSEHWHEEL => self.handle_mouse_horizontal_wheel_msg(wparam, lparam),
WM_SYSKEYDOWN => self.handle_syskeydown_msg(msg, wparam, lparam), WM_SYSKEYDOWN => self.handle_syskeydown_msg(wparam, lparam),
WM_SYSKEYUP => self.handle_syskeyup_msg(msg, wparam, lparam), WM_SYSKEYUP => self.handle_syskeyup_msg(wparam),
WM_KEYDOWN => self.handle_keydown_msg(msg, wparam, lparam), WM_KEYDOWN => self.handle_keydown_msg(msg, wparam, lparam),
WM_KEYUP => self.handle_keyup_msg(msg, wparam), WM_KEYUP => self.handle_keyup_msg(msg, wparam),
WM_CHAR => self.handle_char_msg(msg, wparam, lparam), WM_CHAR => self.handle_char_msg(msg, wparam, lparam),
WM_IME_STARTCOMPOSITION => self.handle_ime_position(), WM_IME_STARTCOMPOSITION => self.handle_ime_position(),
WM_IME_COMPOSITION => self.handle_ime_composition(msg, wparam, lparam), WM_IME_COMPOSITION => self.handle_ime_composition(lparam),
WM_IME_CHAR => self.handle_ime_char(wparam), WM_IME_CHAR => self.handle_ime_char(wparam),
_ => unsafe { DefWindowProcW(self.hwnd, msg, wparam, lparam) }, _ => None,
};
if let Some(n) = handled {
LRESULT(n)
} else {
unsafe { DefWindowProcW(self.hwnd, msg, wparam, lparam) }
} }
} }
fn handle_move_msg(&self, lparam: LPARAM) -> LRESULT { fn handle_move_msg(&self, lparam: LPARAM) -> Option<isize> {
let x = lparam.signed_loword() as f32; let x = lparam.signed_loword() as f32;
let y = lparam.signed_hiword() as f32; let y = lparam.signed_hiword() as f32;
self.origin.set(Point { self.origin.set(Point {
@ -289,10 +278,10 @@ impl WindowsWindowInner {
if let Some(callback) = callbacks.moved.as_mut() { if let Some(callback) = callbacks.moved.as_mut() {
callback() callback()
} }
LRESULT(0) Some(0)
} }
fn handle_size_msg(&self, lparam: LPARAM) -> LRESULT { fn handle_size_msg(&self, lparam: LPARAM) -> Option<isize> {
let width = lparam.loword().max(1) as f32; let width = lparam.loword().max(1) as f32;
let height = lparam.hiword().max(1) as f32; let height = lparam.hiword().max(1) as f32;
let scale_factor = self.scale_factor.get(); let scale_factor = self.scale_factor.get();
@ -311,10 +300,10 @@ impl WindowsWindowInner {
callback(logical_size, scale_factor); callback(logical_size, scale_factor);
} }
self.invalidate_client_area(); self.invalidate_client_area();
LRESULT(0) Some(0)
} }
fn handle_paint_msg(&self) -> LRESULT { fn handle_paint_msg(&self) -> Option<isize> {
let mut paint_struct = PAINTSTRUCT::default(); let mut paint_struct = PAINTSTRUCT::default();
let _hdc = unsafe { BeginPaint(self.hwnd, &mut paint_struct) }; let _hdc = unsafe { BeginPaint(self.hwnd, &mut paint_struct) };
let mut callbacks = self.callbacks.borrow_mut(); let mut callbacks = self.callbacks.borrow_mut();
@ -322,21 +311,20 @@ impl WindowsWindowInner {
request_frame(); request_frame();
} }
unsafe { EndPaint(self.hwnd, &paint_struct) }; unsafe { EndPaint(self.hwnd, &paint_struct) };
LRESULT(0) Some(0)
} }
fn handle_close_msg(&self, msg: u32, wparam: WPARAM, lparam: LPARAM) -> LRESULT { fn handle_close_msg(&self) -> Option<isize> {
let mut callbacks = self.callbacks.borrow_mut(); let mut callbacks = self.callbacks.borrow_mut();
if let Some(callback) = callbacks.should_close.as_mut() { if let Some(callback) = callbacks.should_close.as_mut() {
if callback() { if callback() {
return LRESULT(0); return Some(0);
} }
} }
drop(callbacks); None
unsafe { DefWindowProcW(self.hwnd, msg, wparam, lparam) }
} }
fn handle_destroy_msg(&self) -> LRESULT { fn handle_destroy_msg(&self) -> Option<isize> {
let mut callbacks = self.callbacks.borrow_mut(); let mut callbacks = self.callbacks.borrow_mut();
if let Some(callback) = callbacks.close.take() { if let Some(callback) = callbacks.close.take() {
callback() callback()
@ -357,10 +345,10 @@ impl WindowsWindowInner {
}) })
.detach(); .detach();
} }
LRESULT(1) Some(1)
} }
fn handle_mouse_move_msg(&self, lparam: LPARAM, wparam: WPARAM) -> LRESULT { fn handle_mouse_move_msg(&self, lparam: LPARAM, wparam: WPARAM) -> Option<isize> {
let mut callbacks = self.callbacks.borrow_mut(); let mut callbacks = self.callbacks.borrow_mut();
if let Some(callback) = callbacks.input.as_mut() { if let Some(callback) = callbacks.input.as_mut() {
let pressed_button = match MODIFIERKEYS_FLAGS(wparam.loword() as u32) { let pressed_button = match MODIFIERKEYS_FLAGS(wparam.loword() as u32) {
@ -384,10 +372,10 @@ impl WindowsWindowInner {
modifiers: self.current_modifiers(), modifiers: self.current_modifiers(),
}; };
if callback(PlatformInput::MouseMove(event)).default_prevented { if callback(PlatformInput::MouseMove(event)).default_prevented {
return LRESULT(0); return Some(0);
} }
} }
LRESULT(1) Some(1)
} }
fn parse_syskeydown_msg_keystroke(&self, wparam: WPARAM) -> Option<Keystroke> { fn parse_syskeydown_msg_keystroke(&self, wparam: WPARAM) -> Option<Keystroke> {
@ -506,14 +494,14 @@ impl WindowsWindowInner {
} }
} }
fn handle_syskeydown_msg(&self, message: u32, wparam: WPARAM, lparam: LPARAM) -> LRESULT { fn handle_syskeydown_msg(&self, wparam: WPARAM, lparam: LPARAM) -> Option<isize> {
// we need to call `DefWindowProcW`, or we will lose the system-wide `Alt+F4`, `Alt+{other keys}` // we need to call `DefWindowProcW`, or we will lose the system-wide `Alt+F4`, `Alt+{other keys}`
// shortcuts. // shortcuts.
let Some(keystroke) = self.parse_syskeydown_msg_keystroke(wparam) else { let Some(keystroke) = self.parse_syskeydown_msg_keystroke(wparam) else {
return unsafe { DefWindowProcW(self.hwnd, message, wparam, lparam) }; return None;
}; };
let Some(ref mut func) = self.callbacks.borrow_mut().input else { let Some(ref mut func) = self.callbacks.borrow_mut().input else {
return unsafe { DefWindowProcW(self.hwnd, message, wparam, lparam) }; return None;
}; };
let event = KeyDownEvent { let event = KeyDownEvent {
keystroke, keystroke,
@ -521,34 +509,34 @@ impl WindowsWindowInner {
}; };
if func(PlatformInput::KeyDown(event)).default_prevented { if func(PlatformInput::KeyDown(event)).default_prevented {
self.invalidate_client_area(); self.invalidate_client_area();
return LRESULT(0); return Some(0);
} }
unsafe { DefWindowProcW(self.hwnd, message, wparam, lparam) } None
} }
fn handle_syskeyup_msg(&self, message: u32, wparam: WPARAM, lparam: LPARAM) -> LRESULT { fn handle_syskeyup_msg(&self, wparam: WPARAM) -> Option<isize> {
// we need to call `DefWindowProcW`, or we will lose the system-wide `Alt+F4`, `Alt+{other keys}` // we need to call `DefWindowProcW`, or we will lose the system-wide `Alt+F4`, `Alt+{other keys}`
// shortcuts. // shortcuts.
let Some(keystroke) = self.parse_syskeydown_msg_keystroke(wparam) else { let Some(keystroke) = self.parse_syskeydown_msg_keystroke(wparam) else {
return unsafe { DefWindowProcW(self.hwnd, message, wparam, lparam) }; return None;
}; };
let Some(ref mut func) = self.callbacks.borrow_mut().input else { let Some(ref mut func) = self.callbacks.borrow_mut().input else {
return unsafe { DefWindowProcW(self.hwnd, message, wparam, lparam) }; return None;
}; };
let event = KeyUpEvent { keystroke }; let event = KeyUpEvent { keystroke };
if func(PlatformInput::KeyUp(event)).default_prevented { if func(PlatformInput::KeyUp(event)).default_prevented {
self.invalidate_client_area(); self.invalidate_client_area();
return LRESULT(0); return Some(0);
} }
unsafe { DefWindowProcW(self.hwnd, message, wparam, lparam) } None
} }
fn handle_keydown_msg(&self, _msg: u32, wparam: WPARAM, lparam: LPARAM) -> LRESULT { fn handle_keydown_msg(&self, _msg: u32, wparam: WPARAM, lparam: LPARAM) -> Option<isize> {
let Some(keystroke) = self.parse_keydown_msg_keystroke(wparam) else { let Some(keystroke) = self.parse_keydown_msg_keystroke(wparam) else {
return LRESULT(1); return Some(1);
}; };
let Some(ref mut func) = self.callbacks.borrow_mut().input else { let Some(ref mut func) = self.callbacks.borrow_mut().input else {
return LRESULT(1); return Some(1);
}; };
let event = KeyDownEvent { let event = KeyDownEvent {
keystroke, keystroke,
@ -556,33 +544,33 @@ impl WindowsWindowInner {
}; };
if func(PlatformInput::KeyDown(event)).default_prevented { if func(PlatformInput::KeyDown(event)).default_prevented {
self.invalidate_client_area(); self.invalidate_client_area();
return LRESULT(0); return Some(0);
} }
LRESULT(1) Some(1)
} }
fn handle_keyup_msg(&self, _msg: u32, wparam: WPARAM) -> LRESULT { fn handle_keyup_msg(&self, _msg: u32, wparam: WPARAM) -> Option<isize> {
let Some(keystroke) = self.parse_keydown_msg_keystroke(wparam) else { let Some(keystroke) = self.parse_keydown_msg_keystroke(wparam) else {
return LRESULT(1); return Some(1);
}; };
let Some(ref mut func) = self.callbacks.borrow_mut().input else { let Some(ref mut func) = self.callbacks.borrow_mut().input else {
return LRESULT(1); return Some(1);
}; };
let event = KeyUpEvent { keystroke }; let event = KeyUpEvent { keystroke };
if func(PlatformInput::KeyUp(event)).default_prevented { if func(PlatformInput::KeyUp(event)).default_prevented {
self.invalidate_client_area(); self.invalidate_client_area();
return LRESULT(0); return Some(0);
} }
LRESULT(1) Some(1)
} }
fn handle_char_msg(&self, _msg: u32, wparam: WPARAM, lparam: LPARAM) -> LRESULT { fn handle_char_msg(&self, _msg: u32, wparam: WPARAM, lparam: LPARAM) -> Option<isize> {
let Some(keystroke) = self.parse_char_msg_keystroke(wparam) else { let Some(keystroke) = self.parse_char_msg_keystroke(wparam) else {
return LRESULT(1); return Some(1);
}; };
let mut callbacks = self.callbacks.borrow_mut(); let mut callbacks = self.callbacks.borrow_mut();
let Some(ref mut func) = callbacks.input else { let Some(ref mut func) = callbacks.input else {
return LRESULT(1); return Some(1);
}; };
let ime_key = keystroke.ime_key.clone(); let ime_key = keystroke.ime_key.clone();
let event = KeyDownEvent { let event = KeyDownEvent {
@ -593,22 +581,22 @@ impl WindowsWindowInner {
let dispatch_event_result = func(PlatformInput::KeyDown(event)); let dispatch_event_result = func(PlatformInput::KeyDown(event));
if dispatch_event_result.default_prevented || !dispatch_event_result.propagate { if dispatch_event_result.default_prevented || !dispatch_event_result.propagate {
self.invalidate_client_area(); self.invalidate_client_area();
return LRESULT(0); return Some(0);
} }
drop(callbacks); drop(callbacks);
let Some(ime_char) = ime_key else { let Some(ime_char) = ime_key else {
return LRESULT(1); return Some(1);
}; };
let Some(mut input_handler) = self.input_handler.take() else { let Some(mut input_handler) = self.input_handler.take() else {
return LRESULT(1); return Some(1);
}; };
input_handler.replace_text_in_range(None, &ime_char); input_handler.replace_text_in_range(None, &ime_char);
self.input_handler.set(Some(input_handler)); self.input_handler.set(Some(input_handler));
self.invalidate_client_area(); self.invalidate_client_area();
LRESULT(0) Some(0)
} }
fn handle_mouse_down_msg(&self, button: MouseButton, lparam: LPARAM) -> LRESULT { fn handle_mouse_down_msg(&self, button: MouseButton, lparam: LPARAM) -> Option<isize> {
let mut callbacks = self.callbacks.borrow_mut(); let mut callbacks = self.callbacks.borrow_mut();
if let Some(callback) = callbacks.input.as_mut() { if let Some(callback) = callbacks.input.as_mut() {
let x = lparam.signed_loword() as f32; let x = lparam.signed_loword() as f32;
@ -621,13 +609,13 @@ impl WindowsWindowInner {
click_count: 1, click_count: 1,
}; };
if callback(PlatformInput::MouseDown(event)).default_prevented { if callback(PlatformInput::MouseDown(event)).default_prevented {
return LRESULT(0); return Some(0);
} }
} }
LRESULT(1) Some(1)
} }
fn handle_mouse_up_msg(&self, button: MouseButton, lparam: LPARAM) -> LRESULT { fn handle_mouse_up_msg(&self, button: MouseButton, lparam: LPARAM) -> Option<isize> {
let mut callbacks = self.callbacks.borrow_mut(); let mut callbacks = self.callbacks.borrow_mut();
if let Some(callback) = callbacks.input.as_mut() { if let Some(callback) = callbacks.input.as_mut() {
let x = lparam.signed_loword() as f32; let x = lparam.signed_loword() as f32;
@ -640,13 +628,13 @@ impl WindowsWindowInner {
click_count: 1, click_count: 1,
}; };
if callback(PlatformInput::MouseUp(event)).default_prevented { if callback(PlatformInput::MouseUp(event)).default_prevented {
return LRESULT(0); return Some(0);
} }
} }
LRESULT(1) Some(1)
} }
fn handle_mouse_wheel_msg(&self, wparam: WPARAM, lparam: LPARAM) -> LRESULT { fn handle_mouse_wheel_msg(&self, wparam: WPARAM, lparam: LPARAM) -> Option<isize> {
let mut callbacks = self.callbacks.borrow_mut(); let mut callbacks = self.callbacks.borrow_mut();
if let Some(callback) = callbacks.input.as_mut() { if let Some(callback) = callbacks.input.as_mut() {
let wheel_distance = (wparam.signed_hiword() as f32 / WHEEL_DELTA as f32) let wheel_distance = (wparam.signed_hiword() as f32 / WHEEL_DELTA as f32)
@ -664,12 +652,12 @@ impl WindowsWindowInner {
touch_phase: TouchPhase::Moved, touch_phase: TouchPhase::Moved,
}; };
callback(PlatformInput::ScrollWheel(event)); callback(PlatformInput::ScrollWheel(event));
return LRESULT(0); return Some(0);
} }
LRESULT(1) Some(1)
} }
fn handle_mouse_horizontal_wheel_msg(&self, wparam: WPARAM, lparam: LPARAM) -> LRESULT { fn handle_mouse_horizontal_wheel_msg(&self, wparam: WPARAM, lparam: LPARAM) -> Option<isize> {
let mut callbacks = self.callbacks.borrow_mut(); let mut callbacks = self.callbacks.borrow_mut();
if let Some(callback) = callbacks.input.as_mut() { if let Some(callback) = callbacks.input.as_mut() {
let wheel_distance = (wparam.signed_hiword() as f32 / WHEEL_DELTA as f32) let wheel_distance = (wparam.signed_hiword() as f32 / WHEEL_DELTA as f32)
@ -687,17 +675,17 @@ impl WindowsWindowInner {
touch_phase: TouchPhase::Moved, touch_phase: TouchPhase::Moved,
}; };
if callback(PlatformInput::ScrollWheel(event)).default_prevented { if callback(PlatformInput::ScrollWheel(event)).default_prevented {
return LRESULT(0); return Some(0);
} }
} }
LRESULT(1) Some(1)
} }
fn handle_ime_position(&self) -> LRESULT { fn handle_ime_position(&self) -> Option<isize> {
unsafe { unsafe {
let ctx = ImmGetContext(self.hwnd); let ctx = ImmGetContext(self.hwnd);
let Some(mut input_handler) = self.input_handler.take() else { let Some(mut input_handler) = self.input_handler.take() else {
return LRESULT(1); return Some(1);
}; };
// we are composing, this should never fail // we are composing, this should never fail
let caret_range = input_handler.selected_text_range().unwrap(); let caret_range = input_handler.selected_text_range().unwrap();
@ -713,7 +701,7 @@ impl WindowsWindowInner {
}; };
ImmSetCandidateWindow(ctx, &config as _); ImmSetCandidateWindow(ctx, &config as _);
ImmReleaseContext(self.hwnd, ctx); ImmReleaseContext(self.hwnd, ctx);
LRESULT(0) Some(0)
} }
} }
@ -744,13 +732,13 @@ impl WindowsWindowInner {
} }
} }
fn handle_ime_composition(&self, msg: u32, wparam: WPARAM, lparam: LPARAM) -> LRESULT { fn handle_ime_composition(&self, lparam: LPARAM) -> Option<isize> {
if lparam.0 as u32 & GCS_COMPSTR.0 > 0 { if lparam.0 as u32 & GCS_COMPSTR.0 > 0 {
let Some((string, string_len)) = self.parse_ime_compostion_string() else { let Some((string, string_len)) = self.parse_ime_compostion_string() else {
return unsafe { DefWindowProcW(self.hwnd, msg, wparam, lparam) }; return None;
}; };
let Some(mut input_handler) = self.input_handler.take() else { let Some(mut input_handler) = self.input_handler.take() else {
return unsafe { DefWindowProcW(self.hwnd, msg, wparam, lparam) }; return None;
}; };
input_handler.replace_and_mark_text_in_range( input_handler.replace_and_mark_text_in_range(
None, None,
@ -758,10 +746,10 @@ impl WindowsWindowInner {
Some(0..string_len), Some(0..string_len),
); );
self.input_handler.set(Some(input_handler)); self.input_handler.set(Some(input_handler));
unsafe { DefWindowProcW(self.hwnd, msg, wparam, lparam) } None
} else { } else {
// currently, we don't care other stuff // currently, we don't care other stuff
unsafe { DefWindowProcW(self.hwnd, msg, wparam, lparam) } None
} }
} }
@ -773,17 +761,17 @@ impl WindowsWindowInner {
Some(first_char.to_string()) Some(first_char.to_string())
} }
fn handle_ime_char(&self, wparam: WPARAM) -> LRESULT { fn handle_ime_char(&self, wparam: WPARAM) -> Option<isize> {
let Some(ime_char) = self.parse_ime_char(wparam) else { let Some(ime_char) = self.parse_ime_char(wparam) else {
return LRESULT(1); return Some(1);
}; };
let Some(mut input_handler) = self.input_handler.take() else { let Some(mut input_handler) = self.input_handler.take() else {
return LRESULT(1); return Some(1);
}; };
input_handler.replace_text_in_range(None, &ime_char); input_handler.replace_text_in_range(None, &ime_char);
self.input_handler.set(Some(input_handler)); self.input_handler.set(Some(input_handler));
self.invalidate_client_area(); self.invalidate_client_area();
LRESULT(0) Some(0)
} }
fn handle_drag_drop(&self, input: PlatformInput) { fn handle_drag_drop(&self, input: PlatformInput) {
@ -795,13 +783,13 @@ impl WindowsWindowInner {
} }
/// SEE: https://learn.microsoft.com/en-us/windows/win32/winmsg/wm-nccalcsize /// SEE: https://learn.microsoft.com/en-us/windows/win32/winmsg/wm-nccalcsize
fn handle_calc_client_size(&self, msg: u32, wparam: WPARAM, lparam: LPARAM) -> LRESULT { fn handle_calc_client_size(&self, wparam: WPARAM, lparam: LPARAM) -> Option<isize> {
if !self.hide_title_bar { if !self.hide_title_bar {
return unsafe { DefWindowProcW(self.hwnd, msg, wparam, lparam) }; return None;
} }
if wparam.0 == 0 { if wparam.0 == 0 {
return unsafe { DefWindowProcW(self.hwnd, msg, wparam, lparam) }; return None;
} }
let dpi = unsafe { GetDpiForWindow(self.hwnd) }; let dpi = unsafe { GetDpiForWindow(self.hwnd) };
@ -818,19 +806,19 @@ impl WindowsWindowInner {
requested_client_rect[0].left += frame_x + padding; requested_client_rect[0].left += frame_x + padding;
requested_client_rect[0].bottom -= frame_y + padding; requested_client_rect[0].bottom -= frame_y + padding;
LRESULT(0) Some(0)
} }
fn handle_activate_msg(&self, msg: u32, wparam: WPARAM, lparam: LPARAM) -> LRESULT { fn handle_activate_msg(&self) -> Option<isize> {
if self.hide_title_bar { if self.hide_title_bar {
if let Some(titlebar_rect) = self.get_titlebar_rect().log_err() { if let Some(titlebar_rect) = self.get_titlebar_rect().log_err() {
unsafe { InvalidateRect(self.hwnd, Some(&titlebar_rect), FALSE) }; unsafe { InvalidateRect(self.hwnd, Some(&titlebar_rect), FALSE) };
} }
} }
return unsafe { DefWindowProcW(self.hwnd, msg, wparam, lparam) }; None
} }
fn handle_create_msg(&self, _lparam: LPARAM) -> LRESULT { fn handle_create_msg(&self, _lparam: LPARAM) -> Option<isize> {
let mut size_rect = RECT::default(); let mut size_rect = RECT::default();
unsafe { GetWindowRect(self.hwnd, &mut size_rect).log_err() }; unsafe { GetWindowRect(self.hwnd, &mut size_rect).log_err() };
@ -859,10 +847,10 @@ impl WindowsWindowInner {
}; };
} }
LRESULT(0) Some(0)
} }
fn handle_dpi_changed_msg(&self, wparam: WPARAM, lparam: LPARAM) -> LRESULT { fn handle_dpi_changed_msg(&self, wparam: WPARAM, lparam: LPARAM) -> Option<isize> {
let new_dpi = wparam.loword() as f32; let new_dpi = wparam.loword() as f32;
let scale_factor = new_dpi / USER_DEFAULT_SCREEN_DPI as f32; let scale_factor = new_dpi / USER_DEFAULT_SCREEN_DPI as f32;
self.scale_factor.set(scale_factor); self.scale_factor.set(scale_factor);
@ -886,12 +874,12 @@ impl WindowsWindowInner {
.log_err(); .log_err();
} }
self.invalidate_client_area(); self.invalidate_client_area();
LRESULT(0) Some(0)
} }
fn handle_hit_test_msg(&self, msg: u32, wparam: WPARAM, lparam: LPARAM) -> LRESULT { fn handle_hit_test_msg(&self, msg: u32, wparam: WPARAM, lparam: LPARAM) -> Option<isize> {
if !self.hide_title_bar { if !self.hide_title_bar {
return unsafe { DefWindowProcW(self.hwnd, msg, wparam, lparam) }; return None;
} }
// default handler for resize areas // default handler for resize areas
@ -908,7 +896,7 @@ impl WindowsWindowInner {
| HTBOTTOM | HTBOTTOM
| HTBOTTOMLEFT | HTBOTTOMLEFT
) { ) {
return hit; return Some(hit.0);
} }
let dpi = unsafe { GetDpiForWindow(self.hwnd) }; let dpi = unsafe { GetDpiForWindow(self.hwnd) };
@ -921,7 +909,7 @@ impl WindowsWindowInner {
}; };
unsafe { ScreenToClient(self.hwnd, &mut cursor_point) }; unsafe { ScreenToClient(self.hwnd, &mut cursor_point) };
if cursor_point.y > 0 && cursor_point.y < frame_y + padding { if cursor_point.y > 0 && cursor_point.y < frame_y + padding {
return LRESULT(HTTOP as _); return Some(HTTOP as _);
} }
let titlebar_rect = self.get_titlebar_rect(); let titlebar_rect = self.get_titlebar_rect();
@ -930,23 +918,23 @@ impl WindowsWindowInner {
let caption_btn_width = let caption_btn_width =
(self.caption_button_width().0 * self.scale_factor.get()) as i32; (self.caption_button_width().0 * self.scale_factor.get()) as i32;
if cursor_point.x >= titlebar_rect.right - caption_btn_width { if cursor_point.x >= titlebar_rect.right - caption_btn_width {
return LRESULT(HTCLOSE as _); return Some(HTCLOSE as _);
} else if cursor_point.x >= titlebar_rect.right - caption_btn_width * 2 { } else if cursor_point.x >= titlebar_rect.right - caption_btn_width * 2 {
return LRESULT(HTMAXBUTTON as _); return Some(HTMAXBUTTON as _);
} else if cursor_point.x >= titlebar_rect.right - caption_btn_width * 3 { } else if cursor_point.x >= titlebar_rect.right - caption_btn_width * 3 {
return LRESULT(HTMINBUTTON as _); return Some(HTMINBUTTON as _);
} }
return LRESULT(HTCAPTION as _); return Some(HTCAPTION as _);
} }
} }
LRESULT(HTCLIENT as _) Some(HTCLIENT as _)
} }
fn handle_nc_mouse_move_msg(&self, msg: u32, wparam: WPARAM, lparam: LPARAM) -> LRESULT { fn handle_nc_mouse_move_msg(&self, lparam: LPARAM) -> Option<isize> {
if !self.hide_title_bar { if !self.hide_title_bar {
return unsafe { DefWindowProcW(self.hwnd, msg, wparam, lparam) }; return None;
} }
let mut callbacks = self.callbacks.borrow_mut(); let mut callbacks = self.callbacks.borrow_mut();
@ -963,22 +951,20 @@ impl WindowsWindowInner {
modifiers: self.current_modifiers(), modifiers: self.current_modifiers(),
}; };
if callback(PlatformInput::MouseMove(event)).default_prevented { if callback(PlatformInput::MouseMove(event)).default_prevented {
return LRESULT(0); return Some(0);
} }
} }
drop(callbacks); None
unsafe { DefWindowProcW(self.hwnd, msg, wparam, lparam) }
} }
fn handle_nc_mouse_down_msg( fn handle_nc_mouse_down_msg(
&self, &self,
button: MouseButton, button: MouseButton,
msg: u32,
wparam: WPARAM, wparam: WPARAM,
lparam: LPARAM, lparam: LPARAM,
) -> LRESULT { ) -> Option<isize> {
if !self.hide_title_bar { if !self.hide_title_bar {
return unsafe { DefWindowProcW(self.hwnd, msg, wparam, lparam) }; return None;
} }
let mut callbacks = self.callbacks.borrow_mut(); let mut callbacks = self.callbacks.borrow_mut();
@ -996,27 +982,22 @@ impl WindowsWindowInner {
click_count: 1, click_count: 1,
}; };
if callback(PlatformInput::MouseDown(event)).default_prevented { if callback(PlatformInput::MouseDown(event)).default_prevented {
return LRESULT(0); return Some(0);
} }
} }
drop(callbacks);
match wparam.0 as u32 {
// Since these are handled in handle_nc_mouse_up_msg we must prevent the default window proc // Since these are handled in handle_nc_mouse_up_msg we must prevent the default window proc
HTMINBUTTON | HTMAXBUTTON | HTCLOSE => LRESULT(0), matches!(wparam.0 as u32, HTMINBUTTON | HTMAXBUTTON | HTCLOSE).then_some(0)
_ => unsafe { DefWindowProcW(self.hwnd, msg, wparam, lparam) },
}
} }
fn handle_nc_mouse_up_msg( fn handle_nc_mouse_up_msg(
&self, &self,
button: MouseButton, button: MouseButton,
msg: u32,
wparam: WPARAM, wparam: WPARAM,
lparam: LPARAM, lparam: LPARAM,
) -> LRESULT { ) -> Option<isize> {
if !self.hide_title_bar { if !self.hide_title_bar {
return unsafe { DefWindowProcW(self.hwnd, msg, wparam, lparam) }; return None;
} }
let mut callbacks = self.callbacks.borrow_mut(); let mut callbacks = self.callbacks.borrow_mut();
@ -1034,7 +1015,7 @@ impl WindowsWindowInner {
click_count: 1, click_count: 1,
}; };
if callback(PlatformInput::MouseUp(event)).default_prevented { if callback(PlatformInput::MouseUp(event)).default_prevented {
return LRESULT(0); return Some(0);
} }
} }
drop(callbacks); drop(callbacks);
@ -1043,7 +1024,6 @@ impl WindowsWindowInner {
match wparam.0 as u32 { match wparam.0 as u32 {
HTMINBUTTON => unsafe { HTMINBUTTON => unsafe {
ShowWindowAsync(self.hwnd, SW_MINIMIZE); ShowWindowAsync(self.hwnd, SW_MINIMIZE);
return LRESULT(0);
}, },
HTMAXBUTTON => unsafe { HTMAXBUTTON => unsafe {
if self.is_maximized() { if self.is_maximized() {
@ -1051,21 +1031,20 @@ impl WindowsWindowInner {
} else { } else {
ShowWindowAsync(self.hwnd, SW_MAXIMIZE); ShowWindowAsync(self.hwnd, SW_MAXIMIZE);
} }
return LRESULT(0);
}, },
HTCLOSE => unsafe { HTCLOSE => unsafe {
PostMessageW(self.hwnd, WM_CLOSE, WPARAM::default(), LPARAM::default()) PostMessageW(self.hwnd, WM_CLOSE, WPARAM::default(), LPARAM::default())
.log_err(); .log_err();
return LRESULT(0);
}, },
_ => {} _ => return None,
}; };
return Some(0);
} }
unsafe { DefWindowProcW(self.hwnd, msg, wparam, lparam) } None
} }
fn handle_set_focus_msg(&self, _msg: u32, wparam: WPARAM, _lparam: LPARAM) -> LRESULT { fn handle_set_focus_msg(&self, _msg: u32, wparam: WPARAM, _lparam: LPARAM) -> Option<isize> {
// wparam is the window that just lost focus (may be null) // wparam is the window that just lost focus (may be null)
// SEE: https://learn.microsoft.com/en-us/windows/win32/inputdev/wm-setfocus // SEE: https://learn.microsoft.com/en-us/windows/win32/inputdev/wm-setfocus
let lost_focus_hwnd = HWND(wparam.0 as isize); let lost_focus_hwnd = HWND(wparam.0 as isize);
@ -1084,7 +1063,7 @@ impl WindowsWindowInner {
cb(true); cb(true);
} }
LRESULT(0) Some(0)
} }
} }
@ -1633,7 +1612,7 @@ unsafe extern "system" fn wnd_proc(
}; };
if msg == WM_NCDESTROY { if msg == WM_NCDESTROY {
unsafe { set_window_long(hwnd, GWLP_USERDATA, 0) }; unsafe { set_window_long(hwnd, GWLP_USERDATA, 0) };
unsafe { std::mem::drop(Box::from_raw(ptr)) }; unsafe { drop(Box::from_raw(ptr)) };
} }
r r
} }