windows: Better keyboard input support (#9180)

### Description

Currently, there are some issues with input handling on Windows:

#### 1. Direct crash when encountering IME input.



https://github.com/zed-industries/zed/assets/14981363/598f7272-1948-4a42-99c5-2ef7b9162a1e


#### 2. Handling messages every 1/60 seconds in the main thread. Despite
being named "immediate_handle," it's not exactly immediate.

```rust
// actually halt here
let wait_result =
    unsafe { DCompositionWaitForCompositorClock(Some(&[self.inner.event]), INFINITE) };

// compositor clock ticked so we should draw a frame
if wait_result == 1 {
    unsafe { invalidate_thread_windows(GetCurrentThreadId()) };

    while unsafe { PeekMessageW(&mut msg, HWND::default(), 0, 0, PM_REMOVE) }.as_bool()
```

#### 3. According to Windows recommendations, character input should be
obtained using `WM_CHAR` instead of `WM_KEYDOWN`. Additionally, there
are problems with the handling within `WM_CHAR`.

```rust
fn handle_char_msg(&self, wparam: WPARAM) -> LRESULT {
        let mut callbacks = self.callbacks.borrow_mut();
        if let Some(callback) = callbacks.input.as_mut() {
            let modifiers = self.current_modifiers();
            let msg_char = wparam.0 as u8 as char; // these are u16 chars, cant treat them as u8
```

And, we don't handle `WM_SYSKEYDOWN` properly, which leads to `Alt + F4`
not working.

Release Notes:

- N/A
This commit is contained in:
张小白
2024-03-13 12:10:22 -07:00
committed by GitHub
parent 2abb5aeaf2
commit 36cbfbfb94
3 changed files with 321 additions and 262 deletions
+16 -12
View File
@@ -323,7 +323,13 @@ url = "2.2"
uuid = { version = "1.1.2", features = ["v4"] }
wasmparser = "0.121"
wasm-encoder = "0.41"
wasmtime = { version = "18.0", default-features = false, features = ["async", "demangle", "runtime", "cranelift", "component-model"] }
wasmtime = { version = "18.0", default-features = false, features = [
"async",
"demangle",
"runtime",
"cranelift",
"component-model",
] }
wasmtime-wasi = "18.0"
which = "6.0.0"
wit-component = "0.20"
@@ -334,23 +340,21 @@ version = "0.53.0"
features = [
"implement",
"Wdk_System_SystemServices",
"Win32_Graphics_Gdi",
"Win32_Graphics_DirectComposition",
"Win32_UI_Controls",
"Win32_UI_WindowsAndMessaging",
"Win32_UI_Input_KeyboardAndMouse",
"Win32_UI_Shell",
"Win32_System_Com",
"Win32_System_SystemInformation",
"Win32_System_SystemServices",
"Win32_System_Time",
"Win32_Graphics_Gdi",
"Win32_Security",
"Win32_System_Com",
"Win32_System_Com_StructuredStorage",
"Win32_System_Threading",
"Win32_System_DataExchange",
"Win32_System_Ole",
"Win32_System_Com",
"Win32_System_SystemInformation",
"Win32_System_SystemServices",
"Win32_System_Time",
"Win32_System_Threading",
"Win32_UI_Controls",
"Win32_UI_Input_KeyboardAndMouse",
"Win32_UI_Shell",
"Win32_UI_WindowsAndMessaging",
]
[patch.crates-io]