张小白
e6cd1cf22b
This PR uses the `AgileReference` provided by the `windows-rs` crate to correctly implement `Send` and `Sync` for `DirectWrite`. Release Notes: - N/A
825 lines
26 KiB
Rust
825 lines
26 KiB
Rust
// todo(windows): remove
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#![allow(unused_variables)]
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use std::{
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cell::{Cell, RefCell},
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ffi::{c_void, OsString},
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mem::ManuallyDrop,
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os::windows::ffi::{OsStrExt, OsStringExt},
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path::{Path, PathBuf},
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rc::Rc,
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sync::Arc,
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};
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use ::util::ResultExt;
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use anyhow::{anyhow, Context, Result};
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use futures::channel::oneshot::{self, Receiver};
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use itertools::Itertools;
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use parking_lot::RwLock;
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use smallvec::SmallVec;
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use windows::{
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core::*,
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Win32::{
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Foundation::*,
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Globalization::u_memcpy,
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Graphics::{
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Gdi::*,
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Imaging::{CLSID_WICImagingFactory, IWICImagingFactory},
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},
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Security::Credentials::*,
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System::{
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Com::*,
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DataExchange::{
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CloseClipboard, EmptyClipboard, GetClipboardData, OpenClipboard,
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RegisterClipboardFormatW, SetClipboardData,
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},
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LibraryLoader::*,
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Memory::{GlobalAlloc, GlobalLock, GlobalUnlock, GMEM_MOVEABLE},
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Ole::*,
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SystemInformation::*,
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Threading::*,
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},
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UI::{Input::KeyboardAndMouse::*, Shell::*, WindowsAndMessaging::*},
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},
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UI::ViewManagement::UISettings,
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};
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use crate::*;
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pub(crate) struct WindowsPlatform {
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state: RefCell<WindowsPlatformState>,
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raw_window_handles: RwLock<SmallVec<[HWND; 4]>>,
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// The below members will never change throughout the entire lifecycle of the app.
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icon: HICON,
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background_executor: BackgroundExecutor,
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foreground_executor: ForegroundExecutor,
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text_system: Arc<DirectWriteTextSystem>,
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clipboard_hash_format: u32,
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clipboard_metadata_format: u32,
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windows_version: WindowsVersion,
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bitmap_factory: ManuallyDrop<IWICImagingFactory>,
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}
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pub(crate) struct WindowsPlatformState {
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callbacks: PlatformCallbacks,
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// NOTE: standard cursor handles don't need to close.
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pub(crate) current_cursor: HCURSOR,
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}
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#[derive(Default)]
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struct PlatformCallbacks {
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open_urls: Option<Box<dyn FnMut(Vec<String>)>>,
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quit: Option<Box<dyn FnMut()>>,
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reopen: Option<Box<dyn FnMut()>>,
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app_menu_action: Option<Box<dyn FnMut(&dyn Action)>>,
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will_open_app_menu: Option<Box<dyn FnMut()>>,
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validate_app_menu_command: Option<Box<dyn FnMut(&dyn Action) -> bool>>,
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}
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impl WindowsPlatformState {
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fn new() -> Self {
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let callbacks = PlatformCallbacks::default();
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let current_cursor = load_cursor(CursorStyle::Arrow);
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Self {
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callbacks,
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current_cursor,
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}
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}
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}
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impl WindowsPlatform {
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pub(crate) fn new() -> Self {
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unsafe {
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OleInitialize(None).expect("unable to initialize Windows OLE");
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}
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let dispatcher = Arc::new(WindowsDispatcher::new());
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let background_executor = BackgroundExecutor::new(dispatcher.clone());
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let foreground_executor = ForegroundExecutor::new(dispatcher);
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let bitmap_factory = ManuallyDrop::new(unsafe {
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CoCreateInstance(&CLSID_WICImagingFactory, None, CLSCTX_INPROC_SERVER)
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.expect("Error creating bitmap factory.")
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});
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let text_system = Arc::new(
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DirectWriteTextSystem::new(&bitmap_factory)
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.expect("Error creating DirectWriteTextSystem"),
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);
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let icon = load_icon().unwrap_or_default();
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let state = RefCell::new(WindowsPlatformState::new());
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let raw_window_handles = RwLock::new(SmallVec::new());
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let clipboard_hash_format = register_clipboard_format(CLIPBOARD_HASH_FORMAT).unwrap();
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let clipboard_metadata_format =
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register_clipboard_format(CLIPBOARD_METADATA_FORMAT).unwrap();
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let windows_version = WindowsVersion::new().expect("Error retrieve windows version");
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Self {
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state,
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raw_window_handles,
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icon,
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background_executor,
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foreground_executor,
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text_system,
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clipboard_hash_format,
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clipboard_metadata_format,
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windows_version,
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bitmap_factory,
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}
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}
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fn redraw_all(&self) {
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for handle in self.raw_window_handles.read().iter() {
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unsafe {
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RedrawWindow(
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*handle,
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None,
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HRGN::default(),
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RDW_INVALIDATE | RDW_UPDATENOW,
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)
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.ok()
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.log_err();
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}
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}
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}
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pub fn try_get_windows_inner_from_hwnd(&self, hwnd: HWND) -> Option<Rc<WindowsWindowStatePtr>> {
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self.raw_window_handles
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.read()
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.iter()
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.find(|entry| *entry == &hwnd)
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.and_then(|hwnd| try_get_window_inner(*hwnd))
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}
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#[inline]
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fn post_message(&self, message: u32, wparam: WPARAM, lparam: LPARAM) {
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self.raw_window_handles
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.read()
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.iter()
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.for_each(|handle| unsafe {
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PostMessageW(*handle, message, wparam, lparam).log_err();
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});
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}
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fn close_one_window(&self, target_window: HWND) -> bool {
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let mut lock = self.raw_window_handles.write();
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let index = lock
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.iter()
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.position(|handle| *handle == target_window)
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.unwrap();
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lock.remove(index);
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lock.is_empty()
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}
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}
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impl Platform for WindowsPlatform {
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fn background_executor(&self) -> BackgroundExecutor {
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self.background_executor.clone()
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}
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fn foreground_executor(&self) -> ForegroundExecutor {
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self.foreground_executor.clone()
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}
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fn text_system(&self) -> Arc<dyn PlatformTextSystem> {
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self.text_system.clone()
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}
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fn run(&self, on_finish_launching: Box<dyn 'static + FnOnce()>) {
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on_finish_launching();
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let vsync_event = unsafe { Owned::new(CreateEventW(None, false, false, None).unwrap()) };
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begin_vsync(*vsync_event);
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'a: loop {
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let wait_result = unsafe {
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MsgWaitForMultipleObjects(Some(&[*vsync_event]), false, INFINITE, QS_ALLINPUT)
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};
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match wait_result {
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// compositor clock ticked so we should draw a frame
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WAIT_EVENT(0) => {
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self.redraw_all();
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}
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// Windows thread messages are posted
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WAIT_EVENT(1) => {
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let mut msg = MSG::default();
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unsafe {
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while PeekMessageW(&mut msg, None, 0, 0, PM_REMOVE).as_bool() {
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match msg.message {
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WM_QUIT => break 'a,
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CLOSE_ONE_WINDOW => {
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if self.close_one_window(HWND(msg.lParam.0 as _)) {
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break 'a;
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}
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}
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_ => {
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// todo(windows)
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// crate `windows 0.56` reports true as Err
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TranslateMessage(&msg).as_bool();
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DispatchMessageW(&msg);
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}
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}
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}
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}
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}
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_ => {
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log::error!("Something went wrong while waiting {:?}", wait_result);
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break;
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}
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}
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}
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if let Some(ref mut callback) = self.state.borrow_mut().callbacks.quit {
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callback();
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}
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}
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fn quit(&self) {
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self.foreground_executor()
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.spawn(async { unsafe { PostQuitMessage(0) } })
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.detach();
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}
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fn restart(&self, _: Option<PathBuf>) {
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let pid = std::process::id();
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let Some(app_path) = self.app_path().log_err() else {
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return;
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};
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let script = format!(
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r#"
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$pidToWaitFor = {}
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$exePath = "{}"
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while ($true) {{
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$process = Get-Process -Id $pidToWaitFor -ErrorAction SilentlyContinue
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if (-not $process) {{
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Start-Process -FilePath $exePath
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break
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}}
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Start-Sleep -Seconds 0.1
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}}
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"#,
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pid,
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app_path.display(),
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);
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let restart_process = std::process::Command::new("powershell.exe")
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.arg("-command")
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.arg(script)
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.spawn();
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match restart_process {
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Ok(_) => self.quit(),
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Err(e) => log::error!("failed to spawn restart script: {:?}", e),
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}
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}
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// todo(windows)
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fn activate(&self, ignoring_other_apps: bool) {}
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// todo(windows)
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fn hide(&self) {
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unimplemented!()
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}
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// todo(windows)
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fn hide_other_apps(&self) {
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unimplemented!()
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}
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// todo(windows)
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fn unhide_other_apps(&self) {
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unimplemented!()
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}
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fn displays(&self) -> Vec<Rc<dyn PlatformDisplay>> {
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WindowsDisplay::displays()
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}
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fn primary_display(&self) -> Option<Rc<dyn PlatformDisplay>> {
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WindowsDisplay::primary_monitor().map(|display| Rc::new(display) as Rc<dyn PlatformDisplay>)
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}
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fn active_window(&self) -> Option<AnyWindowHandle> {
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let active_window_hwnd = unsafe { GetActiveWindow() };
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self.try_get_windows_inner_from_hwnd(active_window_hwnd)
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.map(|inner| inner.handle)
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}
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fn open_window(
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&self,
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handle: AnyWindowHandle,
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options: WindowParams,
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) -> Result<Box<dyn PlatformWindow>> {
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let lock = self.state.borrow();
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let window = WindowsWindow::new(
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handle,
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options,
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self.icon,
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self.foreground_executor.clone(),
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lock.current_cursor,
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self.windows_version,
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)?;
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drop(lock);
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let handle = window.get_raw_handle();
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self.raw_window_handles.write().push(handle);
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Ok(Box::new(window))
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}
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fn window_appearance(&self) -> WindowAppearance {
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system_appearance().log_err().unwrap_or_default()
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}
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fn open_url(&self, url: &str) {
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let url_string = url.to_string();
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self.background_executor()
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.spawn(async move {
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if url_string.is_empty() {
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return;
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}
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open_target(url_string.as_str());
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})
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.detach();
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}
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fn on_open_urls(&self, callback: Box<dyn FnMut(Vec<String>)>) {
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self.state.borrow_mut().callbacks.open_urls = Some(callback);
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}
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fn prompt_for_paths(
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&self,
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options: PathPromptOptions,
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) -> Receiver<Result<Option<Vec<PathBuf>>>> {
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let (tx, rx) = oneshot::channel();
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self.foreground_executor()
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.spawn(async move {
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let tx = Cell::new(Some(tx));
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// create file open dialog
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let folder_dialog: IFileOpenDialog = unsafe {
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CoCreateInstance::<std::option::Option<&IUnknown>, IFileOpenDialog>(
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&FileOpenDialog,
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None,
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CLSCTX_ALL,
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)
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.unwrap()
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};
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// dialog options
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let mut dialog_options: FILEOPENDIALOGOPTIONS = FOS_FILEMUSTEXIST;
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if options.multiple {
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dialog_options |= FOS_ALLOWMULTISELECT;
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}
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if options.directories {
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dialog_options |= FOS_PICKFOLDERS;
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}
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unsafe {
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folder_dialog.SetOptions(dialog_options).unwrap();
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folder_dialog
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.SetTitle(&HSTRING::from(OsString::from("Select a folder")))
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.unwrap();
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}
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let hr = unsafe { folder_dialog.Show(None) };
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if hr.is_err() {
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if hr.unwrap_err().code() == HRESULT(0x800704C7u32 as i32) {
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// user canceled error
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if let Some(tx) = tx.take() {
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tx.send(Ok(None)).unwrap();
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}
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return;
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}
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}
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let mut results = unsafe { folder_dialog.GetResults().unwrap() };
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let mut paths: Vec<PathBuf> = Vec::new();
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for i in 0..unsafe { results.GetCount().unwrap() } {
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let mut item: IShellItem = unsafe { results.GetItemAt(i).unwrap() };
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let mut path: PWSTR =
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unsafe { item.GetDisplayName(SIGDN_FILESYSPATH).unwrap() };
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let mut path_os_string = OsString::from_wide(unsafe { path.as_wide() });
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paths.push(PathBuf::from(path_os_string));
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}
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if let Some(tx) = tx.take() {
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if paths.is_empty() {
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tx.send(Ok(None)).unwrap();
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} else {
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tx.send(Ok(Some(paths))).unwrap();
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}
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}
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})
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.detach();
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rx
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}
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fn prompt_for_new_path(&self, directory: &Path) -> Receiver<Result<Option<PathBuf>>> {
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let directory = directory.to_owned();
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let (tx, rx) = oneshot::channel();
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self.foreground_executor()
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.spawn(async move {
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unsafe {
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let Ok(dialog) = show_savefile_dialog(directory) else {
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let _ = tx.send(Ok(None));
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return;
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};
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let Ok(_) = dialog.Show(None) else {
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let _ = tx.send(Ok(None)); // user cancel
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return;
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};
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if let Ok(shell_item) = dialog.GetResult() {
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if let Ok(file) = shell_item.GetDisplayName(SIGDN_FILESYSPATH) {
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let _ = tx.send(Ok(Some(PathBuf::from(file.to_string().unwrap()))));
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return;
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}
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}
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let _ = tx.send(Ok(None));
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}
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})
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.detach();
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rx
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}
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fn reveal_path(&self, path: &Path) {
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let Ok(file_full_path) = path.canonicalize() else {
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log::error!("unable to parse file path");
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return;
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};
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self.background_executor()
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.spawn(async move {
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let Some(path) = file_full_path.to_str() else {
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return;
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};
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if path.is_empty() {
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return;
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}
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open_target_in_explorer(path);
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})
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.detach();
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}
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fn on_quit(&self, callback: Box<dyn FnMut()>) {
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self.state.borrow_mut().callbacks.quit = Some(callback);
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}
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fn on_reopen(&self, callback: Box<dyn FnMut()>) {
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self.state.borrow_mut().callbacks.reopen = Some(callback);
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}
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// todo(windows)
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fn set_menus(&self, menus: Vec<Menu>, keymap: &Keymap) {}
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fn set_dock_menu(&self, menus: Vec<MenuItem>, keymap: &Keymap) {}
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fn on_app_menu_action(&self, callback: Box<dyn FnMut(&dyn Action)>) {
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self.state.borrow_mut().callbacks.app_menu_action = Some(callback);
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}
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fn on_will_open_app_menu(&self, callback: Box<dyn FnMut()>) {
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self.state.borrow_mut().callbacks.will_open_app_menu = Some(callback);
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}
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fn on_validate_app_menu_command(&self, callback: Box<dyn FnMut(&dyn Action) -> bool>) {
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self.state.borrow_mut().callbacks.validate_app_menu_command = Some(callback);
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}
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fn app_path(&self) -> Result<PathBuf> {
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Ok(std::env::current_exe()?)
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}
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// todo(windows)
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fn path_for_auxiliary_executable(&self, name: &str) -> Result<PathBuf> {
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Err(anyhow!("not yet implemented"))
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}
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fn set_cursor_style(&self, style: CursorStyle) {
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let hcursor = load_cursor(style);
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let mut lock = self.state.borrow_mut();
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if lock.current_cursor.0 != hcursor.0 {
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self.post_message(CURSOR_STYLE_CHANGED, WPARAM(0), LPARAM(hcursor.0 as isize));
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lock.current_cursor = hcursor;
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}
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}
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fn should_auto_hide_scrollbars(&self) -> bool {
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should_auto_hide_scrollbars().log_err().unwrap_or(false)
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}
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fn write_to_clipboard(&self, item: ClipboardItem) {
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write_to_clipboard(
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item,
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self.clipboard_hash_format,
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self.clipboard_metadata_format,
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);
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}
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fn read_from_clipboard(&self) -> Option<ClipboardItem> {
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read_from_clipboard(self.clipboard_hash_format, self.clipboard_metadata_format)
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}
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fn write_credentials(&self, url: &str, username: &str, password: &[u8]) -> Task<Result<()>> {
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let mut password = password.to_vec();
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let mut username = username.encode_utf16().chain(Some(0)).collect_vec();
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let mut target_name = windows_credentials_target_name(url)
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.encode_utf16()
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.chain(Some(0))
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.collect_vec();
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self.foreground_executor().spawn(async move {
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let credentials = CREDENTIALW {
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LastWritten: unsafe { GetSystemTimeAsFileTime() },
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Flags: CRED_FLAGS(0),
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Type: CRED_TYPE_GENERIC,
|
|
TargetName: PWSTR::from_raw(target_name.as_mut_ptr()),
|
|
CredentialBlobSize: password.len() as u32,
|
|
CredentialBlob: password.as_ptr() as *mut _,
|
|
Persist: CRED_PERSIST_LOCAL_MACHINE,
|
|
UserName: PWSTR::from_raw(username.as_mut_ptr()),
|
|
..CREDENTIALW::default()
|
|
};
|
|
unsafe { CredWriteW(&credentials, 0) }?;
|
|
Ok(())
|
|
})
|
|
}
|
|
|
|
fn read_credentials(&self, url: &str) -> Task<Result<Option<(String, Vec<u8>)>>> {
|
|
let mut target_name = windows_credentials_target_name(url)
|
|
.encode_utf16()
|
|
.chain(Some(0))
|
|
.collect_vec();
|
|
self.foreground_executor().spawn(async move {
|
|
let mut credentials: *mut CREDENTIALW = std::ptr::null_mut();
|
|
unsafe {
|
|
CredReadW(
|
|
PCWSTR::from_raw(target_name.as_ptr()),
|
|
CRED_TYPE_GENERIC,
|
|
0,
|
|
&mut credentials,
|
|
)?
|
|
};
|
|
|
|
if credentials.is_null() {
|
|
Ok(None)
|
|
} else {
|
|
let username: String = unsafe { (*credentials).UserName.to_string()? };
|
|
let credential_blob = unsafe {
|
|
std::slice::from_raw_parts(
|
|
(*credentials).CredentialBlob,
|
|
(*credentials).CredentialBlobSize as usize,
|
|
)
|
|
};
|
|
let password = credential_blob.to_vec();
|
|
unsafe { CredFree(credentials as *const c_void) };
|
|
Ok(Some((username, password)))
|
|
}
|
|
})
|
|
}
|
|
|
|
fn delete_credentials(&self, url: &str) -> Task<Result<()>> {
|
|
let mut target_name = windows_credentials_target_name(url)
|
|
.encode_utf16()
|
|
.chain(Some(0))
|
|
.collect_vec();
|
|
self.foreground_executor().spawn(async move {
|
|
unsafe { CredDeleteW(PCWSTR::from_raw(target_name.as_ptr()), CRED_TYPE_GENERIC, 0)? };
|
|
Ok(())
|
|
})
|
|
}
|
|
|
|
fn register_url_scheme(&self, _: &str) -> Task<anyhow::Result<()>> {
|
|
Task::ready(Err(anyhow!("register_url_scheme unimplemented")))
|
|
}
|
|
}
|
|
|
|
impl Drop for WindowsPlatform {
|
|
fn drop(&mut self) {
|
|
unsafe {
|
|
ManuallyDrop::drop(&mut self.bitmap_factory);
|
|
OleUninitialize();
|
|
}
|
|
}
|
|
}
|
|
|
|
fn open_target(target: &str) {
|
|
unsafe {
|
|
let ret = ShellExecuteW(
|
|
None,
|
|
windows::core::w!("open"),
|
|
&HSTRING::from(target),
|
|
None,
|
|
None,
|
|
SW_SHOWDEFAULT,
|
|
);
|
|
if ret.0 as isize <= 32 {
|
|
log::error!("Unable to open target: {}", std::io::Error::last_os_error());
|
|
}
|
|
}
|
|
}
|
|
|
|
fn open_target_in_explorer(target: &str) {
|
|
unsafe {
|
|
let ret = ShellExecuteW(
|
|
None,
|
|
windows::core::w!("open"),
|
|
windows::core::w!("explorer.exe"),
|
|
&HSTRING::from(format!("/select,{}", target).as_str()),
|
|
None,
|
|
SW_SHOWDEFAULT,
|
|
);
|
|
if ret.0 as isize <= 32 {
|
|
log::error!(
|
|
"Unable to open target in explorer: {}",
|
|
std::io::Error::last_os_error()
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
unsafe fn show_savefile_dialog(directory: PathBuf) -> Result<IFileSaveDialog> {
|
|
let dialog: IFileSaveDialog = CoCreateInstance(&FileSaveDialog, None, CLSCTX_ALL)?;
|
|
let bind_context = CreateBindCtx(0)?;
|
|
let Ok(full_path) = directory.canonicalize() else {
|
|
return Ok(dialog);
|
|
};
|
|
let dir_str = full_path.into_os_string();
|
|
if dir_str.is_empty() {
|
|
return Ok(dialog);
|
|
}
|
|
let dir_vec = dir_str.encode_wide().collect_vec();
|
|
let ret = SHCreateItemFromParsingName(PCWSTR::from_raw(dir_vec.as_ptr()), &bind_context)
|
|
.inspect_err(|e| log::error!("unable to create IShellItem: {}", e));
|
|
if ret.is_ok() {
|
|
let dir_shell_item: IShellItem = ret.unwrap();
|
|
let _ = dialog
|
|
.SetFolder(&dir_shell_item)
|
|
.inspect_err(|e| log::error!("unable to set folder for save file dialog: {}", e));
|
|
}
|
|
|
|
Ok(dialog)
|
|
}
|
|
|
|
fn begin_vsync(vsync_event: HANDLE) {
|
|
let event: SafeHandle = vsync_event.into();
|
|
std::thread::spawn(move || unsafe {
|
|
loop {
|
|
windows::Win32::Graphics::Dwm::DwmFlush().log_err();
|
|
SetEvent(*event).log_err();
|
|
}
|
|
});
|
|
}
|
|
|
|
fn load_icon() -> Result<HICON> {
|
|
let module = unsafe { GetModuleHandleW(None).context("unable to get module handle")? };
|
|
let handle = unsafe {
|
|
LoadImageW(
|
|
module,
|
|
IDI_APPLICATION,
|
|
IMAGE_ICON,
|
|
0,
|
|
0,
|
|
LR_DEFAULTSIZE | LR_SHARED,
|
|
)
|
|
.context("unable to load icon file")?
|
|
};
|
|
Ok(HICON(handle.0))
|
|
}
|
|
|
|
#[inline]
|
|
fn should_auto_hide_scrollbars() -> Result<bool> {
|
|
let ui_settings = UISettings::new()?;
|
|
Ok(ui_settings.AutoHideScrollBars()?)
|
|
}
|
|
|
|
fn register_clipboard_format(format: PCWSTR) -> Result<u32> {
|
|
let ret = unsafe { RegisterClipboardFormatW(format) };
|
|
if ret == 0 {
|
|
Err(anyhow::anyhow!(
|
|
"Error when registering clipboard format: {}",
|
|
std::io::Error::last_os_error()
|
|
))
|
|
} else {
|
|
Ok(ret)
|
|
}
|
|
}
|
|
|
|
fn write_to_clipboard(item: ClipboardItem, hash_format: u32, metadata_format: u32) {
|
|
write_to_clipboard_inner(item, hash_format, metadata_format).log_err();
|
|
unsafe { CloseClipboard().log_err() };
|
|
}
|
|
|
|
fn write_to_clipboard_inner(
|
|
item: ClipboardItem,
|
|
hash_format: u32,
|
|
metadata_format: u32,
|
|
) -> Result<()> {
|
|
unsafe {
|
|
OpenClipboard(None)?;
|
|
EmptyClipboard()?;
|
|
let encode_wide = item.text.encode_utf16().chain(Some(0)).collect_vec();
|
|
set_data_to_clipboard(&encode_wide, CF_UNICODETEXT.0 as u32)?;
|
|
|
|
if let Some(ref metadata) = item.metadata {
|
|
let hash_result = {
|
|
let hash = ClipboardItem::text_hash(&item.text);
|
|
hash.to_ne_bytes()
|
|
};
|
|
let encode_wide = std::slice::from_raw_parts(hash_result.as_ptr().cast::<u16>(), 4);
|
|
set_data_to_clipboard(encode_wide, hash_format)?;
|
|
|
|
let metadata_wide = metadata.encode_utf16().chain(Some(0)).collect_vec();
|
|
set_data_to_clipboard(&metadata_wide, metadata_format)?;
|
|
}
|
|
}
|
|
Ok(())
|
|
}
|
|
|
|
fn set_data_to_clipboard(data: &[u16], format: u32) -> Result<()> {
|
|
unsafe {
|
|
let global = GlobalAlloc(GMEM_MOVEABLE, data.len() * 2)?;
|
|
let handle = GlobalLock(global);
|
|
u_memcpy(handle as _, data.as_ptr(), data.len() as _);
|
|
let _ = GlobalUnlock(global);
|
|
SetClipboardData(format, HANDLE(global.0))?;
|
|
}
|
|
Ok(())
|
|
}
|
|
|
|
fn read_from_clipboard(hash_format: u32, metadata_format: u32) -> Option<ClipboardItem> {
|
|
let result = read_from_clipboard_inner(hash_format, metadata_format).log_err();
|
|
unsafe { CloseClipboard().log_err() };
|
|
result
|
|
}
|
|
|
|
fn read_from_clipboard_inner(hash_format: u32, metadata_format: u32) -> Result<ClipboardItem> {
|
|
unsafe {
|
|
OpenClipboard(None)?;
|
|
let text = {
|
|
let handle = GetClipboardData(CF_UNICODETEXT.0 as u32)?;
|
|
let text = PCWSTR(handle.0 as *const u16);
|
|
String::from_utf16_lossy(text.as_wide())
|
|
};
|
|
let mut item = ClipboardItem {
|
|
text,
|
|
metadata: None,
|
|
};
|
|
let Some(hash) = read_hash_from_clipboard(hash_format) else {
|
|
return Ok(item);
|
|
};
|
|
let Some(metadata) = read_metadata_from_clipboard(metadata_format) else {
|
|
return Ok(item);
|
|
};
|
|
if hash == ClipboardItem::text_hash(&item.text) {
|
|
item.metadata = Some(metadata);
|
|
}
|
|
Ok(item)
|
|
}
|
|
}
|
|
|
|
fn read_hash_from_clipboard(hash_format: u32) -> Option<u64> {
|
|
unsafe {
|
|
let handle = GetClipboardData(hash_format).log_err()?;
|
|
let raw_ptr = handle.0 as *const u16;
|
|
let hash_bytes: [u8; 8] = std::slice::from_raw_parts(raw_ptr.cast::<u8>(), 8)
|
|
.to_vec()
|
|
.try_into()
|
|
.log_err()?;
|
|
Some(u64::from_ne_bytes(hash_bytes))
|
|
}
|
|
}
|
|
|
|
fn read_metadata_from_clipboard(metadata_format: u32) -> Option<String> {
|
|
unsafe {
|
|
let handle = GetClipboardData(metadata_format).log_err()?;
|
|
let text = PCWSTR(handle.0 as *const u16);
|
|
Some(String::from_utf16_lossy(text.as_wide()))
|
|
}
|
|
}
|
|
|
|
// clipboard
|
|
pub const CLIPBOARD_HASH_FORMAT: PCWSTR = windows::core::w!("zed-text-hash");
|
|
pub const CLIPBOARD_METADATA_FORMAT: PCWSTR = windows::core::w!("zed-metadata");
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use crate::{ClipboardItem, Platform, WindowsPlatform};
|
|
|
|
#[test]
|
|
fn test_clipboard() {
|
|
let platform = WindowsPlatform::new();
|
|
let item = ClipboardItem::new("你好".to_string());
|
|
platform.write_to_clipboard(item.clone());
|
|
assert_eq!(platform.read_from_clipboard(), Some(item));
|
|
|
|
let item = ClipboardItem::new("12345".to_string());
|
|
platform.write_to_clipboard(item.clone());
|
|
assert_eq!(platform.read_from_clipboard(), Some(item));
|
|
|
|
let item = ClipboardItem::new("abcdef".to_string()).with_metadata(vec![3, 4]);
|
|
platform.write_to_clipboard(item.clone());
|
|
assert_eq!(platform.read_from_clipboard(), Some(item));
|
|
}
|
|
}
|