1352 lines
45 KiB
Rust
1352 lines
45 KiB
Rust
#![deny(unsafe_op_in_unsafe_fn)]
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use std::{
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cell::RefCell,
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num::NonZeroIsize,
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path::PathBuf,
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rc::{Rc, Weak},
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str::FromStr,
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sync::{Arc, Once},
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time::{Duration, Instant},
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};
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use ::util::ResultExt;
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use anyhow::{Context as _, Result};
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use async_task::Runnable;
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use futures::channel::oneshot::{self, Receiver};
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use raw_window_handle as rwh;
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use smallvec::SmallVec;
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use windows::{
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Win32::{
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Foundation::*,
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Graphics::Gdi::*,
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System::{Com::*, LibraryLoader::*, Ole::*, SystemServices::*},
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UI::{Controls::*, HiDpi::*, Input::KeyboardAndMouse::*, Shell::*, WindowsAndMessaging::*},
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},
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core::*,
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};
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use crate::*;
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pub(crate) struct WindowsWindow(pub Rc<WindowsWindowStatePtr>);
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pub struct WindowsWindowState {
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pub origin: Point<Pixels>,
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pub logical_size: Size<Pixels>,
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pub min_size: Option<Size<Pixels>>,
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pub fullscreen_restore_bounds: Bounds<Pixels>,
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pub border_offset: WindowBorderOffset,
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pub appearance: WindowAppearance,
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pub scale_factor: f32,
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pub restore_from_minimized: Option<Box<dyn FnMut(RequestFrameOptions)>>,
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pub callbacks: Callbacks,
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pub input_handler: Option<PlatformInputHandler>,
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pub pending_surrogate: Option<u16>,
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pub last_reported_modifiers: Option<Modifiers>,
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pub last_reported_capslock: Option<Capslock>,
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pub system_key_handled: bool,
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pub hovered: bool,
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pub renderer: DirectXRenderer,
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pub keydown_time: Option<std::time::Instant>,
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pub click_state: ClickState,
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pub system_settings: WindowsSystemSettings,
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pub current_cursor: Option<HCURSOR>,
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pub nc_button_pressed: Option<u32>,
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pub display: WindowsDisplay,
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fullscreen: Option<StyleAndBounds>,
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initial_placement: Option<WindowOpenStatus>,
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hwnd: HWND,
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}
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pub(crate) struct WindowsWindowStatePtr {
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hwnd: HWND,
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this: Weak<Self>,
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drop_target_helper: IDropTargetHelper,
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pub(crate) state: RefCell<WindowsWindowState>,
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pub(crate) handle: AnyWindowHandle,
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pub(crate) hide_title_bar: bool,
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pub(crate) is_movable: bool,
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pub(crate) executor: ForegroundExecutor,
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pub(crate) windows_version: WindowsVersion,
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pub(crate) validation_number: usize,
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pub(crate) main_receiver: flume::Receiver<Runnable>,
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pub(crate) main_thread_id_win32: u32,
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}
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impl WindowsWindowState {
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fn new(
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hwnd: HWND,
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cs: &CREATESTRUCTW,
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current_cursor: Option<HCURSOR>,
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display: WindowsDisplay,
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min_size: Option<Size<Pixels>>,
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appearance: WindowAppearance,
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disable_direct_composition: bool,
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) -> Result<Self> {
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let scale_factor = {
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let monitor_dpi = unsafe { GetDpiForWindow(hwnd) } as f32;
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monitor_dpi / USER_DEFAULT_SCREEN_DPI as f32
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};
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let origin = logical_point(cs.x as f32, cs.y as f32, scale_factor);
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let logical_size = {
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let physical_size = size(DevicePixels(cs.cx), DevicePixels(cs.cy));
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physical_size.to_pixels(scale_factor)
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};
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let fullscreen_restore_bounds = Bounds {
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origin,
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size: logical_size,
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};
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let border_offset = WindowBorderOffset::default();
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let restore_from_minimized = None;
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let renderer = DirectXRenderer::new(hwnd, disable_direct_composition)
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.context("Creating DirectX renderer")?;
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let callbacks = Callbacks::default();
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let input_handler = None;
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let pending_surrogate = None;
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let last_reported_modifiers = None;
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let last_reported_capslock = None;
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let system_key_handled = false;
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let hovered = false;
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let click_state = ClickState::new();
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let system_settings = WindowsSystemSettings::new(display);
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let nc_button_pressed = None;
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let fullscreen = None;
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let initial_placement = None;
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let keydown_time = None;
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Ok(Self {
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origin,
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logical_size,
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fullscreen_restore_bounds,
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border_offset,
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appearance,
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scale_factor,
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restore_from_minimized,
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min_size,
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callbacks,
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input_handler,
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pending_surrogate,
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last_reported_modifiers,
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last_reported_capslock,
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system_key_handled,
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hovered,
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renderer,
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keydown_time,
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click_state,
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system_settings,
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current_cursor,
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nc_button_pressed,
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display,
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fullscreen,
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initial_placement,
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hwnd,
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})
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}
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#[inline]
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pub(crate) fn is_fullscreen(&self) -> bool {
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self.fullscreen.is_some()
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}
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pub(crate) fn is_maximized(&self) -> bool {
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!self.is_fullscreen() && unsafe { IsZoomed(self.hwnd) }.as_bool()
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}
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fn bounds(&self) -> Bounds<Pixels> {
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Bounds {
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origin: self.origin,
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size: self.logical_size,
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}
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}
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// Calculate the bounds used for saving and whether the window is maximized.
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fn calculate_window_bounds(&self) -> (Bounds<Pixels>, bool) {
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let placement = unsafe {
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let mut placement = WINDOWPLACEMENT {
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length: std::mem::size_of::<WINDOWPLACEMENT>() as u32,
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..Default::default()
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};
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GetWindowPlacement(self.hwnd, &mut placement).log_err();
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placement
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};
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(
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calculate_client_rect(
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placement.rcNormalPosition,
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self.border_offset,
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self.scale_factor,
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),
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placement.showCmd == SW_SHOWMAXIMIZED.0 as u32,
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)
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}
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fn window_bounds(&self) -> WindowBounds {
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let (bounds, maximized) = self.calculate_window_bounds();
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if self.is_fullscreen() {
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WindowBounds::Fullscreen(self.fullscreen_restore_bounds)
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} else if maximized {
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WindowBounds::Maximized(bounds)
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} else {
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WindowBounds::Windowed(bounds)
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}
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}
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/// get the logical size of the app's drawable area.
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///
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/// Currently, GPUI uses the logical size of the app to handle mouse interactions (such as
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/// whether the mouse collides with other elements of GPUI).
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fn content_size(&self) -> Size<Pixels> {
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self.logical_size
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}
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}
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impl WindowsWindowStatePtr {
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fn new(context: &WindowCreateContext, hwnd: HWND, cs: &CREATESTRUCTW) -> Result<Rc<Self>> {
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let state = RefCell::new(WindowsWindowState::new(
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hwnd,
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cs,
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context.current_cursor,
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context.display,
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context.min_size,
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context.appearance,
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context.disable_direct_composition,
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)?);
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Ok(Rc::new_cyclic(|this| Self {
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hwnd,
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this: this.clone(),
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drop_target_helper: context.drop_target_helper.clone(),
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state,
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handle: context.handle,
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hide_title_bar: context.hide_title_bar,
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is_movable: context.is_movable,
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executor: context.executor.clone(),
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windows_version: context.windows_version,
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validation_number: context.validation_number,
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main_receiver: context.main_receiver.clone(),
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main_thread_id_win32: context.main_thread_id_win32,
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}))
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}
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fn toggle_fullscreen(&self) {
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let Some(state_ptr) = self.this.upgrade() else {
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log::error!("Unable to toggle fullscreen: window has been dropped");
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return;
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};
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self.executor
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.spawn(async move {
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let mut lock = state_ptr.state.borrow_mut();
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let StyleAndBounds {
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style,
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x,
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y,
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cx,
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cy,
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} = if let Some(state) = lock.fullscreen.take() {
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state
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} else {
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let (window_bounds, _) = lock.calculate_window_bounds();
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lock.fullscreen_restore_bounds = window_bounds;
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let style =
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WINDOW_STYLE(unsafe { get_window_long(state_ptr.hwnd, GWL_STYLE) } as _);
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let mut rc = RECT::default();
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unsafe { GetWindowRect(state_ptr.hwnd, &mut rc) }.log_err();
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let _ = lock.fullscreen.insert(StyleAndBounds {
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style,
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x: rc.left,
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y: rc.top,
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cx: rc.right - rc.left,
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cy: rc.bottom - rc.top,
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});
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let style = style
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& !(WS_THICKFRAME
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| WS_SYSMENU
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| WS_MAXIMIZEBOX
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| WS_MINIMIZEBOX
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| WS_CAPTION);
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let physical_bounds = lock.display.physical_bounds();
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StyleAndBounds {
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style,
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x: physical_bounds.left().0,
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y: physical_bounds.top().0,
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cx: physical_bounds.size.width.0,
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cy: physical_bounds.size.height.0,
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}
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};
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drop(lock);
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unsafe { set_window_long(state_ptr.hwnd, GWL_STYLE, style.0 as isize) };
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unsafe {
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SetWindowPos(
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state_ptr.hwnd,
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None,
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x,
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y,
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cx,
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cy,
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SWP_FRAMECHANGED | SWP_NOACTIVATE | SWP_NOZORDER,
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)
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}
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.log_err();
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})
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.detach();
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}
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fn set_window_placement(&self) -> Result<()> {
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let Some(open_status) = self.state.borrow_mut().initial_placement.take() else {
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return Ok(());
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};
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match open_status.state {
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WindowOpenState::Maximized => unsafe {
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SetWindowPlacement(self.hwnd, &open_status.placement)?;
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ShowWindowAsync(self.hwnd, SW_MAXIMIZE).ok()?;
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},
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WindowOpenState::Fullscreen => {
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unsafe { SetWindowPlacement(self.hwnd, &open_status.placement)? };
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self.toggle_fullscreen();
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}
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WindowOpenState::Windowed => unsafe {
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SetWindowPlacement(self.hwnd, &open_status.placement)?;
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},
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}
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Ok(())
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}
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}
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#[derive(Default)]
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pub(crate) struct Callbacks {
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pub(crate) request_frame: Option<Box<dyn FnMut(RequestFrameOptions)>>,
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pub(crate) input: Option<Box<dyn FnMut(crate::PlatformInput) -> DispatchEventResult>>,
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pub(crate) active_status_change: Option<Box<dyn FnMut(bool)>>,
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pub(crate) hovered_status_change: Option<Box<dyn FnMut(bool)>>,
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pub(crate) resize: Option<Box<dyn FnMut(Size<Pixels>, f32)>>,
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pub(crate) moved: Option<Box<dyn FnMut()>>,
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pub(crate) should_close: Option<Box<dyn FnMut() -> bool>>,
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pub(crate) close: Option<Box<dyn FnOnce()>>,
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pub(crate) hit_test_window_control: Option<Box<dyn FnMut() -> Option<WindowControlArea>>>,
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pub(crate) appearance_changed: Option<Box<dyn FnMut()>>,
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}
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struct WindowCreateContext {
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inner: Option<Result<Rc<WindowsWindowStatePtr>>>,
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handle: AnyWindowHandle,
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hide_title_bar: bool,
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display: WindowsDisplay,
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is_movable: bool,
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min_size: Option<Size<Pixels>>,
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executor: ForegroundExecutor,
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current_cursor: Option<HCURSOR>,
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windows_version: WindowsVersion,
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drop_target_helper: IDropTargetHelper,
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validation_number: usize,
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main_receiver: flume::Receiver<Runnable>,
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main_thread_id_win32: u32,
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appearance: WindowAppearance,
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disable_direct_composition: bool,
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}
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impl WindowsWindow {
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pub(crate) fn new(
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handle: AnyWindowHandle,
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params: WindowParams,
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creation_info: WindowCreationInfo,
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) -> Result<Self> {
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let WindowCreationInfo {
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icon,
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executor,
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current_cursor,
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windows_version,
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drop_target_helper,
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validation_number,
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main_receiver,
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main_thread_id_win32,
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disable_direct_composition,
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} = creation_info;
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let classname = register_wnd_class(icon);
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let hide_title_bar = params
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.titlebar
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.as_ref()
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.map(|titlebar| titlebar.appears_transparent)
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.unwrap_or(true);
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let windowname = HSTRING::from(
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params
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.titlebar
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.as_ref()
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.and_then(|titlebar| titlebar.title.as_ref())
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.map(|title| title.as_ref())
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.unwrap_or(""),
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);
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let (mut dwexstyle, dwstyle) = if params.kind == WindowKind::PopUp {
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(WS_EX_TOOLWINDOW, WINDOW_STYLE(0x0))
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} else {
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(
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WS_EX_APPWINDOW,
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WS_THICKFRAME | WS_SYSMENU | WS_MAXIMIZEBOX | WS_MINIMIZEBOX,
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)
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};
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if !disable_direct_composition {
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dwexstyle |= WS_EX_NOREDIRECTIONBITMAP;
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}
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let hinstance = get_module_handle();
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let display = if let Some(display_id) = params.display_id {
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// if we obtain a display_id, then this ID must be valid.
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WindowsDisplay::new(display_id).unwrap()
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} else {
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WindowsDisplay::primary_monitor().unwrap()
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};
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let appearance = system_appearance().unwrap_or_default();
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let mut context = WindowCreateContext {
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inner: None,
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handle,
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hide_title_bar,
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display,
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is_movable: params.is_movable,
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min_size: params.window_min_size,
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executor,
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current_cursor,
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windows_version,
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drop_target_helper,
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validation_number,
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main_receiver,
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main_thread_id_win32,
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appearance,
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disable_direct_composition,
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};
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let lpparam = Some(&context as *const _ as *const _);
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let creation_result = unsafe {
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CreateWindowExW(
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dwexstyle,
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classname,
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&windowname,
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dwstyle,
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CW_USEDEFAULT,
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CW_USEDEFAULT,
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CW_USEDEFAULT,
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CW_USEDEFAULT,
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None,
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None,
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Some(hinstance.into()),
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lpparam,
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)
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};
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// We should call `?` on state_ptr first, then call `?` on hwnd.
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// Or, we will lose the error info reported by `WindowsWindowState::new`
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let state_ptr = context.inner.take().unwrap()?;
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let hwnd = creation_result?;
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register_drag_drop(state_ptr.clone())?;
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configure_dwm_dark_mode(hwnd, appearance);
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state_ptr.state.borrow_mut().border_offset.update(hwnd)?;
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let placement = retrieve_window_placement(
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hwnd,
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display,
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params.bounds,
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state_ptr.state.borrow().scale_factor,
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state_ptr.state.borrow().border_offset,
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)?;
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if params.show {
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unsafe { SetWindowPlacement(hwnd, &placement)? };
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} else {
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state_ptr.state.borrow_mut().initial_placement = Some(WindowOpenStatus {
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placement,
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state: WindowOpenState::Windowed,
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});
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}
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Ok(Self(state_ptr))
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}
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}
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|
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impl rwh::HasWindowHandle for WindowsWindow {
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fn window_handle(&self) -> std::result::Result<rwh::WindowHandle<'_>, rwh::HandleError> {
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let raw = rwh::Win32WindowHandle::new(unsafe {
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NonZeroIsize::new_unchecked(self.0.hwnd.0 as isize)
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})
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.into();
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Ok(unsafe { rwh::WindowHandle::borrow_raw(raw) })
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}
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}
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|
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// todo(windows)
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impl rwh::HasDisplayHandle for WindowsWindow {
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fn display_handle(&self) -> std::result::Result<rwh::DisplayHandle<'_>, rwh::HandleError> {
|
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unimplemented!()
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}
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|
}
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|
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impl Drop for WindowsWindow {
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|
fn drop(&mut self) {
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// clone this `Rc` to prevent early release of the pointer
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let this = self.0.clone();
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self.0
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.executor
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.spawn(async move {
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let handle = this.hwnd;
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unsafe {
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RevokeDragDrop(handle).log_err();
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DestroyWindow(handle).log_err();
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}
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})
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.detach();
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}
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}
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|
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impl PlatformWindow for WindowsWindow {
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fn bounds(&self) -> Bounds<Pixels> {
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self.0.state.borrow().bounds()
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}
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|
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fn is_maximized(&self) -> bool {
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self.0.state.borrow().is_maximized()
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}
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|
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fn window_bounds(&self) -> WindowBounds {
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self.0.state.borrow().window_bounds()
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}
|
|
|
|
/// get the logical size of the app's drawable area.
|
|
///
|
|
/// Currently, GPUI uses the logical size of the app to handle mouse interactions (such as
|
|
/// whether the mouse collides with other elements of GPUI).
|
|
fn content_size(&self) -> Size<Pixels> {
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self.0.state.borrow().content_size()
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}
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|
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fn resize(&mut self, size: Size<Pixels>) {
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|
let hwnd = self.0.hwnd;
|
|
let bounds =
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crate::bounds(self.bounds().origin, size).to_device_pixels(self.scale_factor());
|
|
let rect = calculate_window_rect(bounds, self.0.state.borrow().border_offset);
|
|
|
|
self.0
|
|
.executor
|
|
.spawn(async move {
|
|
unsafe {
|
|
SetWindowPos(
|
|
hwnd,
|
|
None,
|
|
bounds.origin.x.0,
|
|
bounds.origin.y.0,
|
|
rect.right - rect.left,
|
|
rect.bottom - rect.top,
|
|
SWP_NOMOVE,
|
|
)
|
|
.context("unable to set window content size")
|
|
.log_err();
|
|
}
|
|
})
|
|
.detach();
|
|
}
|
|
|
|
fn scale_factor(&self) -> f32 {
|
|
self.0.state.borrow().scale_factor
|
|
}
|
|
|
|
fn appearance(&self) -> WindowAppearance {
|
|
self.0.state.borrow().appearance
|
|
}
|
|
|
|
fn display(&self) -> Option<Rc<dyn PlatformDisplay>> {
|
|
Some(Rc::new(self.0.state.borrow().display))
|
|
}
|
|
|
|
fn mouse_position(&self) -> Point<Pixels> {
|
|
let scale_factor = self.scale_factor();
|
|
let point = unsafe {
|
|
let mut point: POINT = std::mem::zeroed();
|
|
GetCursorPos(&mut point)
|
|
.context("unable to get cursor position")
|
|
.log_err();
|
|
ScreenToClient(self.0.hwnd, &mut point).ok().log_err();
|
|
point
|
|
};
|
|
logical_point(point.x as f32, point.y as f32, scale_factor)
|
|
}
|
|
|
|
fn modifiers(&self) -> Modifiers {
|
|
current_modifiers()
|
|
}
|
|
|
|
fn capslock(&self) -> Capslock {
|
|
current_capslock()
|
|
}
|
|
|
|
fn set_input_handler(&mut self, input_handler: PlatformInputHandler) {
|
|
self.0.state.borrow_mut().input_handler = Some(input_handler);
|
|
}
|
|
|
|
fn take_input_handler(&mut self) -> Option<PlatformInputHandler> {
|
|
self.0.state.borrow_mut().input_handler.take()
|
|
}
|
|
|
|
fn prompt(
|
|
&self,
|
|
level: PromptLevel,
|
|
msg: &str,
|
|
detail: Option<&str>,
|
|
answers: &[PromptButton],
|
|
) -> Option<Receiver<usize>> {
|
|
let (done_tx, done_rx) = oneshot::channel();
|
|
let msg = msg.to_string();
|
|
let detail_string = match detail {
|
|
Some(info) => Some(info.to_string()),
|
|
None => None,
|
|
};
|
|
let handle = self.0.hwnd;
|
|
let answers = answers.to_vec();
|
|
self.0
|
|
.executor
|
|
.spawn(async move {
|
|
unsafe {
|
|
let mut config = TASKDIALOGCONFIG::default();
|
|
config.cbSize = std::mem::size_of::<TASKDIALOGCONFIG>() as _;
|
|
config.hwndParent = handle;
|
|
let title;
|
|
let main_icon;
|
|
match level {
|
|
crate::PromptLevel::Info => {
|
|
title = windows::core::w!("Info");
|
|
main_icon = TD_INFORMATION_ICON;
|
|
}
|
|
crate::PromptLevel::Warning => {
|
|
title = windows::core::w!("Warning");
|
|
main_icon = TD_WARNING_ICON;
|
|
}
|
|
crate::PromptLevel::Critical => {
|
|
title = windows::core::w!("Critical");
|
|
main_icon = TD_ERROR_ICON;
|
|
}
|
|
};
|
|
config.pszWindowTitle = title;
|
|
config.Anonymous1.pszMainIcon = main_icon;
|
|
let instruction = HSTRING::from(msg);
|
|
config.pszMainInstruction = PCWSTR::from_raw(instruction.as_ptr());
|
|
let hints_encoded;
|
|
if let Some(ref hints) = detail_string {
|
|
hints_encoded = HSTRING::from(hints);
|
|
config.pszContent = PCWSTR::from_raw(hints_encoded.as_ptr());
|
|
};
|
|
let mut button_id_map = Vec::with_capacity(answers.len());
|
|
let mut buttons = Vec::new();
|
|
let mut btn_encoded = Vec::new();
|
|
for (index, btn) in answers.iter().enumerate() {
|
|
let encoded = HSTRING::from(btn.label().as_ref());
|
|
let button_id = if btn.is_cancel() {
|
|
IDCANCEL.0
|
|
} else {
|
|
index as i32 - 100
|
|
};
|
|
button_id_map.push(button_id);
|
|
buttons.push(TASKDIALOG_BUTTON {
|
|
nButtonID: button_id,
|
|
pszButtonText: PCWSTR::from_raw(encoded.as_ptr()),
|
|
});
|
|
btn_encoded.push(encoded);
|
|
}
|
|
config.cButtons = buttons.len() as _;
|
|
config.pButtons = buttons.as_ptr();
|
|
|
|
config.pfCallback = None;
|
|
let mut res = std::mem::zeroed();
|
|
let _ = TaskDialogIndirect(&config, Some(&mut res), None, None)
|
|
.context("unable to create task dialog")
|
|
.log_err();
|
|
|
|
let clicked = button_id_map
|
|
.iter()
|
|
.position(|&button_id| button_id == res)
|
|
.unwrap();
|
|
let _ = done_tx.send(clicked);
|
|
}
|
|
})
|
|
.detach();
|
|
|
|
Some(done_rx)
|
|
}
|
|
|
|
fn activate(&self) {
|
|
let hwnd = self.0.hwnd;
|
|
let this = self.0.clone();
|
|
self.0
|
|
.executor
|
|
.spawn(async move {
|
|
this.set_window_placement().log_err();
|
|
unsafe { SetActiveWindow(hwnd).log_err() };
|
|
unsafe { SetFocus(Some(hwnd)).log_err() };
|
|
// todo(windows)
|
|
// crate `windows 0.56` reports true as Err
|
|
unsafe { SetForegroundWindow(hwnd).as_bool() };
|
|
})
|
|
.detach();
|
|
}
|
|
|
|
fn is_active(&self) -> bool {
|
|
self.0.hwnd == unsafe { GetActiveWindow() }
|
|
}
|
|
|
|
fn is_hovered(&self) -> bool {
|
|
self.0.state.borrow().hovered
|
|
}
|
|
|
|
fn set_title(&mut self, title: &str) {
|
|
unsafe { SetWindowTextW(self.0.hwnd, &HSTRING::from(title)) }
|
|
.inspect_err(|e| log::error!("Set title failed: {e}"))
|
|
.ok();
|
|
}
|
|
|
|
fn set_background_appearance(&self, background_appearance: WindowBackgroundAppearance) {
|
|
let hwnd = self.0.hwnd;
|
|
|
|
match background_appearance {
|
|
WindowBackgroundAppearance::Opaque => {
|
|
// ACCENT_DISABLED
|
|
set_window_composition_attribute(hwnd, None, 0);
|
|
}
|
|
WindowBackgroundAppearance::Transparent => {
|
|
// Use ACCENT_ENABLE_TRANSPARENTGRADIENT for transparent background
|
|
set_window_composition_attribute(hwnd, None, 2);
|
|
}
|
|
WindowBackgroundAppearance::Blurred => {
|
|
// Enable acrylic blur
|
|
// ACCENT_ENABLE_ACRYLICBLURBEHIND
|
|
set_window_composition_attribute(hwnd, Some((0, 0, 0, 0)), 4);
|
|
}
|
|
}
|
|
}
|
|
|
|
fn minimize(&self) {
|
|
unsafe { ShowWindowAsync(self.0.hwnd, SW_MINIMIZE).ok().log_err() };
|
|
}
|
|
|
|
fn zoom(&self) {
|
|
unsafe {
|
|
if IsWindowVisible(self.0.hwnd).as_bool() {
|
|
ShowWindowAsync(self.0.hwnd, SW_MAXIMIZE).ok().log_err();
|
|
} else if let Some(status) = self.0.state.borrow_mut().initial_placement.as_mut() {
|
|
status.state = WindowOpenState::Maximized;
|
|
}
|
|
}
|
|
}
|
|
|
|
fn toggle_fullscreen(&self) {
|
|
if unsafe { IsWindowVisible(self.0.hwnd).as_bool() } {
|
|
self.0.toggle_fullscreen();
|
|
} else if let Some(status) = self.0.state.borrow_mut().initial_placement.as_mut() {
|
|
status.state = WindowOpenState::Fullscreen;
|
|
}
|
|
}
|
|
|
|
fn is_fullscreen(&self) -> bool {
|
|
self.0.state.borrow().is_fullscreen()
|
|
}
|
|
|
|
fn on_request_frame(&self, callback: Box<dyn FnMut(RequestFrameOptions)>) {
|
|
self.0.state.borrow_mut().callbacks.request_frame = Some(callback);
|
|
}
|
|
|
|
fn on_input(&self, callback: Box<dyn FnMut(PlatformInput) -> DispatchEventResult>) {
|
|
self.0.state.borrow_mut().callbacks.input = Some(callback);
|
|
}
|
|
|
|
fn on_active_status_change(&self, callback: Box<dyn FnMut(bool)>) {
|
|
self.0.state.borrow_mut().callbacks.active_status_change = Some(callback);
|
|
}
|
|
|
|
fn on_hover_status_change(&self, callback: Box<dyn FnMut(bool)>) {
|
|
self.0.state.borrow_mut().callbacks.hovered_status_change = Some(callback);
|
|
}
|
|
|
|
fn on_resize(&self, callback: Box<dyn FnMut(Size<Pixels>, f32)>) {
|
|
self.0.state.borrow_mut().callbacks.resize = Some(callback);
|
|
}
|
|
|
|
fn on_moved(&self, callback: Box<dyn FnMut()>) {
|
|
self.0.state.borrow_mut().callbacks.moved = Some(callback);
|
|
}
|
|
|
|
fn on_should_close(&self, callback: Box<dyn FnMut() -> bool>) {
|
|
self.0.state.borrow_mut().callbacks.should_close = Some(callback);
|
|
}
|
|
|
|
fn on_close(&self, callback: Box<dyn FnOnce()>) {
|
|
self.0.state.borrow_mut().callbacks.close = Some(callback);
|
|
}
|
|
|
|
fn on_hit_test_window_control(&self, callback: Box<dyn FnMut() -> Option<WindowControlArea>>) {
|
|
self.0.state.borrow_mut().callbacks.hit_test_window_control = Some(callback);
|
|
}
|
|
|
|
fn on_appearance_changed(&self, callback: Box<dyn FnMut()>) {
|
|
self.0.state.borrow_mut().callbacks.appearance_changed = Some(callback);
|
|
}
|
|
|
|
fn draw(&self, scene: &Scene) {
|
|
self.0.state.borrow_mut().renderer.draw(scene).log_err();
|
|
}
|
|
|
|
fn sprite_atlas(&self) -> Arc<dyn PlatformAtlas> {
|
|
self.0.state.borrow().renderer.sprite_atlas()
|
|
}
|
|
|
|
fn get_raw_handle(&self) -> HWND {
|
|
self.0.hwnd
|
|
}
|
|
|
|
fn gpu_specs(&self) -> Option<GpuSpecs> {
|
|
self.0.state.borrow().renderer.gpu_specs().log_err()
|
|
}
|
|
|
|
fn update_ime_position(&self, _bounds: Bounds<ScaledPixels>) {
|
|
// There is no such thing on Windows.
|
|
}
|
|
}
|
|
|
|
#[implement(IDropTarget)]
|
|
struct WindowsDragDropHandler(pub Rc<WindowsWindowStatePtr>);
|
|
|
|
impl WindowsDragDropHandler {
|
|
fn handle_drag_drop(&self, input: PlatformInput) {
|
|
let mut lock = self.0.state.borrow_mut();
|
|
if let Some(mut func) = lock.callbacks.input.take() {
|
|
drop(lock);
|
|
func(input);
|
|
self.0.state.borrow_mut().callbacks.input = Some(func);
|
|
}
|
|
}
|
|
}
|
|
|
|
#[allow(non_snake_case)]
|
|
impl IDropTarget_Impl for WindowsDragDropHandler_Impl {
|
|
fn DragEnter(
|
|
&self,
|
|
pdataobj: windows::core::Ref<IDataObject>,
|
|
_grfkeystate: MODIFIERKEYS_FLAGS,
|
|
pt: &POINTL,
|
|
pdweffect: *mut DROPEFFECT,
|
|
) -> windows::core::Result<()> {
|
|
unsafe {
|
|
let idata_obj = pdataobj.ok()?;
|
|
let config = FORMATETC {
|
|
cfFormat: CF_HDROP.0,
|
|
ptd: std::ptr::null_mut() as _,
|
|
dwAspect: DVASPECT_CONTENT.0,
|
|
lindex: -1,
|
|
tymed: TYMED_HGLOBAL.0 as _,
|
|
};
|
|
let cursor_position = POINT { x: pt.x, y: pt.y };
|
|
if idata_obj.QueryGetData(&config as _) == S_OK {
|
|
*pdweffect = DROPEFFECT_COPY;
|
|
let Some(mut idata) = idata_obj.GetData(&config as _).log_err() else {
|
|
return Ok(());
|
|
};
|
|
if idata.u.hGlobal.is_invalid() {
|
|
return Ok(());
|
|
}
|
|
let hdrop = idata.u.hGlobal.0 as *mut HDROP;
|
|
let mut paths = SmallVec::<[PathBuf; 2]>::new();
|
|
with_file_names(*hdrop, |file_name| {
|
|
if let Some(path) = PathBuf::from_str(&file_name).log_err() {
|
|
paths.push(path);
|
|
}
|
|
});
|
|
ReleaseStgMedium(&mut idata);
|
|
let mut cursor_position = cursor_position;
|
|
ScreenToClient(self.0.hwnd, &mut cursor_position)
|
|
.ok()
|
|
.log_err();
|
|
let scale_factor = self.0.state.borrow().scale_factor;
|
|
let input = PlatformInput::FileDrop(FileDropEvent::Entered {
|
|
position: logical_point(
|
|
cursor_position.x as f32,
|
|
cursor_position.y as f32,
|
|
scale_factor,
|
|
),
|
|
paths: ExternalPaths(paths),
|
|
});
|
|
self.handle_drag_drop(input);
|
|
} else {
|
|
*pdweffect = DROPEFFECT_NONE;
|
|
}
|
|
self.0
|
|
.drop_target_helper
|
|
.DragEnter(self.0.hwnd, idata_obj, &cursor_position, *pdweffect)
|
|
.log_err();
|
|
}
|
|
Ok(())
|
|
}
|
|
|
|
fn DragOver(
|
|
&self,
|
|
_grfkeystate: MODIFIERKEYS_FLAGS,
|
|
pt: &POINTL,
|
|
pdweffect: *mut DROPEFFECT,
|
|
) -> windows::core::Result<()> {
|
|
let mut cursor_position = POINT { x: pt.x, y: pt.y };
|
|
unsafe {
|
|
*pdweffect = DROPEFFECT_COPY;
|
|
self.0
|
|
.drop_target_helper
|
|
.DragOver(&cursor_position, *pdweffect)
|
|
.log_err();
|
|
ScreenToClient(self.0.hwnd, &mut cursor_position)
|
|
.ok()
|
|
.log_err();
|
|
}
|
|
let scale_factor = self.0.state.borrow().scale_factor;
|
|
let input = PlatformInput::FileDrop(FileDropEvent::Pending {
|
|
position: logical_point(
|
|
cursor_position.x as f32,
|
|
cursor_position.y as f32,
|
|
scale_factor,
|
|
),
|
|
});
|
|
self.handle_drag_drop(input);
|
|
|
|
Ok(())
|
|
}
|
|
|
|
fn DragLeave(&self) -> windows::core::Result<()> {
|
|
unsafe {
|
|
self.0.drop_target_helper.DragLeave().log_err();
|
|
}
|
|
let input = PlatformInput::FileDrop(FileDropEvent::Exited);
|
|
self.handle_drag_drop(input);
|
|
|
|
Ok(())
|
|
}
|
|
|
|
fn Drop(
|
|
&self,
|
|
pdataobj: windows::core::Ref<IDataObject>,
|
|
_grfkeystate: MODIFIERKEYS_FLAGS,
|
|
pt: &POINTL,
|
|
pdweffect: *mut DROPEFFECT,
|
|
) -> windows::core::Result<()> {
|
|
let idata_obj = pdataobj.ok()?;
|
|
let mut cursor_position = POINT { x: pt.x, y: pt.y };
|
|
unsafe {
|
|
*pdweffect = DROPEFFECT_COPY;
|
|
self.0
|
|
.drop_target_helper
|
|
.Drop(idata_obj, &cursor_position, *pdweffect)
|
|
.log_err();
|
|
ScreenToClient(self.0.hwnd, &mut cursor_position)
|
|
.ok()
|
|
.log_err();
|
|
}
|
|
let scale_factor = self.0.state.borrow().scale_factor;
|
|
let input = PlatformInput::FileDrop(FileDropEvent::Submit {
|
|
position: logical_point(
|
|
cursor_position.x as f32,
|
|
cursor_position.y as f32,
|
|
scale_factor,
|
|
),
|
|
});
|
|
self.handle_drag_drop(input);
|
|
|
|
Ok(())
|
|
}
|
|
}
|
|
|
|
#[derive(Debug, Clone, Copy)]
|
|
pub(crate) struct ClickState {
|
|
button: MouseButton,
|
|
last_click: Instant,
|
|
last_position: Point<DevicePixels>,
|
|
double_click_spatial_tolerance_width: i32,
|
|
double_click_spatial_tolerance_height: i32,
|
|
double_click_interval: Duration,
|
|
pub(crate) current_count: usize,
|
|
}
|
|
|
|
impl ClickState {
|
|
pub fn new() -> Self {
|
|
let double_click_spatial_tolerance_width = unsafe { GetSystemMetrics(SM_CXDOUBLECLK) };
|
|
let double_click_spatial_tolerance_height = unsafe { GetSystemMetrics(SM_CYDOUBLECLK) };
|
|
let double_click_interval = Duration::from_millis(unsafe { GetDoubleClickTime() } as u64);
|
|
|
|
ClickState {
|
|
button: MouseButton::Left,
|
|
last_click: Instant::now(),
|
|
last_position: Point::default(),
|
|
double_click_spatial_tolerance_width,
|
|
double_click_spatial_tolerance_height,
|
|
double_click_interval,
|
|
current_count: 0,
|
|
}
|
|
}
|
|
|
|
/// update self and return the needed click count
|
|
pub fn update(&mut self, button: MouseButton, new_position: Point<DevicePixels>) -> usize {
|
|
if self.button == button && self.is_double_click(new_position) {
|
|
self.current_count += 1;
|
|
} else {
|
|
self.current_count = 1;
|
|
}
|
|
self.last_click = Instant::now();
|
|
self.last_position = new_position;
|
|
self.button = button;
|
|
|
|
self.current_count
|
|
}
|
|
|
|
pub fn system_update(&mut self, wparam: usize) {
|
|
match wparam {
|
|
// SPI_SETDOUBLECLKWIDTH
|
|
29 => {
|
|
self.double_click_spatial_tolerance_width =
|
|
unsafe { GetSystemMetrics(SM_CXDOUBLECLK) }
|
|
}
|
|
// SPI_SETDOUBLECLKHEIGHT
|
|
30 => {
|
|
self.double_click_spatial_tolerance_height =
|
|
unsafe { GetSystemMetrics(SM_CYDOUBLECLK) }
|
|
}
|
|
// SPI_SETDOUBLECLICKTIME
|
|
32 => {
|
|
self.double_click_interval =
|
|
Duration::from_millis(unsafe { GetDoubleClickTime() } as u64)
|
|
}
|
|
_ => {}
|
|
}
|
|
}
|
|
|
|
#[inline]
|
|
fn is_double_click(&self, new_position: Point<DevicePixels>) -> bool {
|
|
let diff = self.last_position - new_position;
|
|
|
|
self.last_click.elapsed() < self.double_click_interval
|
|
&& diff.x.0.abs() <= self.double_click_spatial_tolerance_width
|
|
&& diff.y.0.abs() <= self.double_click_spatial_tolerance_height
|
|
}
|
|
}
|
|
|
|
struct StyleAndBounds {
|
|
style: WINDOW_STYLE,
|
|
x: i32,
|
|
y: i32,
|
|
cx: i32,
|
|
cy: i32,
|
|
}
|
|
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#[repr(C)]
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struct WINDOWCOMPOSITIONATTRIBDATA {
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attrib: u32,
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pv_data: *mut std::ffi::c_void,
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cb_data: usize,
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}
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#[repr(C)]
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struct AccentPolicy {
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accent_state: u32,
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accent_flags: u32,
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gradient_color: u32,
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animation_id: u32,
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}
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type Color = (u8, u8, u8, u8);
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#[derive(Debug, Default, Clone, Copy)]
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pub(crate) struct WindowBorderOffset {
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pub(crate) width_offset: i32,
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pub(crate) height_offset: i32,
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}
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impl WindowBorderOffset {
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pub(crate) fn update(&mut self, hwnd: HWND) -> anyhow::Result<()> {
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let window_rect = unsafe {
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let mut rect = std::mem::zeroed();
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GetWindowRect(hwnd, &mut rect)?;
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rect
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};
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let client_rect = unsafe {
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let mut rect = std::mem::zeroed();
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GetClientRect(hwnd, &mut rect)?;
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rect
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};
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self.width_offset =
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(window_rect.right - window_rect.left) - (client_rect.right - client_rect.left);
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self.height_offset =
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(window_rect.bottom - window_rect.top) - (client_rect.bottom - client_rect.top);
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Ok(())
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}
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}
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struct WindowOpenStatus {
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placement: WINDOWPLACEMENT,
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state: WindowOpenState,
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}
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enum WindowOpenState {
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Maximized,
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Fullscreen,
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Windowed,
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}
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fn register_wnd_class(icon_handle: HICON) -> PCWSTR {
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const CLASS_NAME: PCWSTR = w!("Zed::Window");
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static ONCE: Once = Once::new();
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ONCE.call_once(|| {
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let wc = WNDCLASSW {
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lpfnWndProc: Some(wnd_proc),
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hIcon: icon_handle,
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lpszClassName: PCWSTR(CLASS_NAME.as_ptr()),
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style: CS_HREDRAW | CS_VREDRAW,
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hInstance: get_module_handle().into(),
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hbrBackground: unsafe { CreateSolidBrush(COLORREF(0x00000000)) },
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..Default::default()
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};
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unsafe { RegisterClassW(&wc) };
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});
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CLASS_NAME
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}
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unsafe extern "system" fn wnd_proc(
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hwnd: HWND,
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msg: u32,
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wparam: WPARAM,
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lparam: LPARAM,
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) -> LRESULT {
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if msg == WM_NCCREATE {
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let cs = lparam.0 as *const CREATESTRUCTW;
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let cs = unsafe { &*cs };
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let ctx = cs.lpCreateParams as *mut WindowCreateContext;
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let ctx = unsafe { &mut *ctx };
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let creation_result = WindowsWindowStatePtr::new(ctx, hwnd, cs);
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if creation_result.is_err() {
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ctx.inner = Some(creation_result);
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return LRESULT(0);
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}
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let weak = Box::new(Rc::downgrade(creation_result.as_ref().unwrap()));
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unsafe { set_window_long(hwnd, GWLP_USERDATA, Box::into_raw(weak) as isize) };
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ctx.inner = Some(creation_result);
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return unsafe { DefWindowProcW(hwnd, msg, wparam, lparam) };
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}
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let ptr = unsafe { get_window_long(hwnd, GWLP_USERDATA) } as *mut Weak<WindowsWindowStatePtr>;
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if ptr.is_null() {
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return unsafe { DefWindowProcW(hwnd, msg, wparam, lparam) };
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}
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let inner = unsafe { &*ptr };
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let r = if let Some(state) = inner.upgrade() {
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handle_msg(hwnd, msg, wparam, lparam, state)
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} else {
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unsafe { DefWindowProcW(hwnd, msg, wparam, lparam) }
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};
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if msg == WM_NCDESTROY {
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unsafe { set_window_long(hwnd, GWLP_USERDATA, 0) };
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unsafe { drop(Box::from_raw(ptr)) };
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}
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r
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}
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pub(crate) fn try_get_window_inner(hwnd: HWND) -> Option<Rc<WindowsWindowStatePtr>> {
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if hwnd.is_invalid() {
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return None;
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}
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let ptr = unsafe { get_window_long(hwnd, GWLP_USERDATA) } as *mut Weak<WindowsWindowStatePtr>;
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if !ptr.is_null() {
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let inner = unsafe { &*ptr };
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inner.upgrade()
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} else {
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None
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}
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}
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fn get_module_handle() -> HMODULE {
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unsafe {
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let mut h_module = std::mem::zeroed();
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GetModuleHandleExW(
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GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS | GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT,
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windows::core::w!("ZedModule"),
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&mut h_module,
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)
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.expect("Unable to get module handle"); // this should never fail
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h_module
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}
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}
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fn register_drag_drop(state_ptr: Rc<WindowsWindowStatePtr>) -> Result<()> {
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let window_handle = state_ptr.hwnd;
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let handler = WindowsDragDropHandler(state_ptr);
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// The lifetime of `IDropTarget` is handled by Windows, it won't release until
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// we call `RevokeDragDrop`.
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// So, it's safe to drop it here.
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let drag_drop_handler: IDropTarget = handler.into();
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unsafe {
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RegisterDragDrop(window_handle, &drag_drop_handler)
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.context("unable to register drag-drop event")?;
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}
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Ok(())
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}
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fn calculate_window_rect(bounds: Bounds<DevicePixels>, border_offset: WindowBorderOffset) -> RECT {
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// NOTE:
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// The reason we're not using `AdjustWindowRectEx()` here is
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// that the size reported by this function is incorrect.
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// You can test it, and there are similar discussions online.
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// See: https://stackoverflow.com/questions/12423584/how-to-set-exact-client-size-for-overlapped-window-winapi
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//
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// So we manually calculate these values here.
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let mut rect = RECT {
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left: bounds.left().0,
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top: bounds.top().0,
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right: bounds.right().0,
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bottom: bounds.bottom().0,
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};
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let left_offset = border_offset.width_offset / 2;
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let top_offset = border_offset.height_offset / 2;
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let right_offset = border_offset.width_offset - left_offset;
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let bottom_offset = border_offset.height_offset - top_offset;
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rect.left -= left_offset;
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rect.top -= top_offset;
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rect.right += right_offset;
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rect.bottom += bottom_offset;
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rect
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}
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fn calculate_client_rect(
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rect: RECT,
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border_offset: WindowBorderOffset,
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scale_factor: f32,
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) -> Bounds<Pixels> {
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let left_offset = border_offset.width_offset / 2;
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let top_offset = border_offset.height_offset / 2;
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let right_offset = border_offset.width_offset - left_offset;
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let bottom_offset = border_offset.height_offset - top_offset;
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let left = rect.left + left_offset;
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let top = rect.top + top_offset;
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let right = rect.right - right_offset;
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let bottom = rect.bottom - bottom_offset;
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let physical_size = size(DevicePixels(right - left), DevicePixels(bottom - top));
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Bounds {
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origin: logical_point(left as f32, top as f32, scale_factor),
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size: physical_size.to_pixels(scale_factor),
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}
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}
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fn retrieve_window_placement(
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hwnd: HWND,
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display: WindowsDisplay,
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initial_bounds: Bounds<Pixels>,
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scale_factor: f32,
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border_offset: WindowBorderOffset,
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) -> Result<WINDOWPLACEMENT> {
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let mut placement = WINDOWPLACEMENT {
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length: std::mem::size_of::<WINDOWPLACEMENT>() as u32,
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..Default::default()
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};
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unsafe { GetWindowPlacement(hwnd, &mut placement)? };
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// the bounds may be not inside the display
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let bounds = if display.check_given_bounds(initial_bounds) {
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initial_bounds
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} else {
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display.default_bounds()
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};
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let bounds = bounds.to_device_pixels(scale_factor);
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placement.rcNormalPosition = calculate_window_rect(bounds, border_offset);
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Ok(placement)
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}
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fn set_window_composition_attribute(hwnd: HWND, color: Option<Color>, state: u32) {
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let mut version = unsafe { std::mem::zeroed() };
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let status = unsafe { windows::Wdk::System::SystemServices::RtlGetVersion(&mut version) };
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if !status.is_ok() || version.dwBuildNumber < 17763 {
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return;
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}
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unsafe {
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type SetWindowCompositionAttributeType =
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unsafe extern "system" fn(HWND, *mut WINDOWCOMPOSITIONATTRIBDATA) -> BOOL;
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let module_name = PCSTR::from_raw(c"user32.dll".as_ptr() as *const u8);
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if let Some(user32) = GetModuleHandleA(module_name)
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.context("Unable to get user32.dll handle")
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.log_err()
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{
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let func_name = PCSTR::from_raw(c"SetWindowCompositionAttribute".as_ptr() as *const u8);
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let set_window_composition_attribute: SetWindowCompositionAttributeType =
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std::mem::transmute(GetProcAddress(user32, func_name));
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let mut color = color.unwrap_or_default();
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let is_acrylic = state == 4;
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if is_acrylic && color.3 == 0 {
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color.3 = 1;
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}
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let accent = AccentPolicy {
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accent_state: state,
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accent_flags: if is_acrylic { 0 } else { 2 },
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gradient_color: (color.0 as u32)
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| ((color.1 as u32) << 8)
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| ((color.2 as u32) << 16)
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| ((color.3 as u32) << 24),
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animation_id: 0,
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};
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let mut data = WINDOWCOMPOSITIONATTRIBDATA {
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attrib: 0x13,
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pv_data: &accent as *const _ as *mut _,
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cb_data: std::mem::size_of::<AccentPolicy>(),
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};
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let _ = set_window_composition_attribute(hwnd, &mut data as *mut _ as _);
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}
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}
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}
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#[cfg(test)]
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mod tests {
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use super::ClickState;
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use crate::{DevicePixels, MouseButton, point};
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use std::time::Duration;
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#[test]
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fn test_double_click_interval() {
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let mut state = ClickState::new();
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assert_eq!(
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state.update(MouseButton::Left, point(DevicePixels(0), DevicePixels(0))),
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1
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);
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assert_eq!(
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state.update(MouseButton::Right, point(DevicePixels(0), DevicePixels(0))),
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1
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);
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assert_eq!(
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state.update(MouseButton::Left, point(DevicePixels(0), DevicePixels(0))),
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1
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);
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assert_eq!(
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state.update(MouseButton::Left, point(DevicePixels(0), DevicePixels(0))),
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2
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);
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state.last_click -= Duration::from_millis(700);
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assert_eq!(
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state.update(MouseButton::Left, point(DevicePixels(0), DevicePixels(0))),
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1
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);
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}
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#[test]
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fn test_double_click_spatial_tolerance() {
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let mut state = ClickState::new();
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assert_eq!(
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state.update(MouseButton::Left, point(DevicePixels(-3), DevicePixels(0))),
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1
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);
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assert_eq!(
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state.update(MouseButton::Left, point(DevicePixels(0), DevicePixels(3))),
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2
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);
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assert_eq!(
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state.update(MouseButton::Right, point(DevicePixels(3), DevicePixels(2))),
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1
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);
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assert_eq!(
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state.update(MouseButton::Right, point(DevicePixels(10), DevicePixels(0))),
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1
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);
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}
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}
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