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gpui: Implement hover for Windows (#20894)

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Matin Aniss 2024-11-29 03:45:10 +11:00 • committed by GitHub
parent 301a8900a5
commit 4a96db026c
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3 changed files with 50 additions and 5 deletions
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38
crates/gpui/src/platform/windows/events.rs
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@ -7,6 +7,7 @@ use windows::Win32::{
Graphics::Gdi::*,
System::SystemServices::*,
UI::{
Controls::*,
HiDpi::*,
Input::{Ime::*, KeyboardAndMouse::*},
WindowsAndMessaging::*,
@ -43,7 +44,8 @@ pub(crate) fn handle_msg(
WM_PAINT => handle_paint_msg(handle, state_ptr),
WM_CLOSE => handle_close_msg(state_ptr),
WM_DESTROY => handle_destroy_msg(handle, state_ptr),
WM_MOUSEMOVE => handle_mouse_move_msg(lparam, wparam, state_ptr),
WM_MOUSEMOVE => handle_mouse_move_msg(handle, lparam, wparam, state_ptr),
WM_MOUSELEAVE => handle_mouse_leave_msg(state_ptr),
WM_NCMOUSEMOVE => handle_nc_mouse_move_msg(handle, lparam, state_ptr),
WM_NCLBUTTONDOWN => {
handle_nc_mouse_down_msg(handle, MouseButton::Left, wparam, lparam, state_ptr)
@ -234,10 +236,32 @@ fn handle_destroy_msg(handle: HWND, state_ptr: Rc<WindowsWindowStatePtr>) -> Opt
}
fn handle_mouse_move_msg(
handle: HWND,
lparam: LPARAM,
wparam: WPARAM,
state_ptr: Rc<WindowsWindowStatePtr>,
) -> Option<isize> {
let mut lock = state_ptr.state.borrow_mut();
if !lock.hovered {
lock.hovered = true;
unsafe {
TrackMouseEvent(&mut TRACKMOUSEEVENT {
cbSize: std::mem::size_of::<TRACKMOUSEEVENT>() as u32,
dwFlags: TME_LEAVE,
hwndTrack: handle,
dwHoverTime: HOVER_DEFAULT,
})
.log_err()
};
if let Some(mut callback) = lock.callbacks.hovered_status_change.take() {
drop(lock);
callback(true);
state_ptr.state.borrow_mut().callbacks.hovered_status_change = Some(callback);
}
} else {
drop(lock);
}
let mut lock = state_ptr.state.borrow_mut();
if let Some(mut callback) = lock.callbacks.input.take() {
let scale_factor = lock.scale_factor;
@ -272,6 +296,18 @@ fn handle_mouse_move_msg(
Some(1)
}
fn handle_mouse_leave_msg(state_ptr: Rc<WindowsWindowStatePtr>) -> Option<isize> {
let mut lock = state_ptr.state.borrow_mut();
lock.hovered = false;
if let Some(mut callback) = lock.callbacks.hovered_status_change.take() {
drop(lock);
callback(false);
state_ptr.state.borrow_mut().callbacks.hovered_status_change = Some(callback);
}
Some(0)
}
fn handle_syskeydown_msg(
wparam: WPARAM,
lparam: LPARAM,