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feat: pass an AppHandle to the callback

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This commit is contained in:
amrbashir
2022-06-15 13:19:02 +02:00
parent 98445a8a5f
commit b0052d2da4
8 changed files with 365 additions and 430 deletions
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src/platform_impl/windows.rs
+18 -10
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@@ -4,7 +4,7 @@ use crate::SingleInstanceCallback;
use std::ffi::CStr;
use tauri::{
plugin::{self, TauriPlugin},
Manager, RunEvent, Runtime,
AppHandle, Manager, RunEvent, Runtime,
};
use windows_sys::Win32::{
Foundation::{CloseHandle, GetLastError, ERROR_ALREADY_EXISTS, HWND, LPARAM, LRESULT, WPARAM},
@@ -26,7 +26,7 @@ struct TargetWindowHandle(isize);
const WMCOPYDATA_SINGLE_INSTANCE_DATA: usize = 1542;
pub fn init<R: Runtime>(f: Box<SingleInstanceCallback>) -> TauriPlugin<R> {
pub fn init<R: Runtime>(f: Box<SingleInstanceCallback<R>>) -> TauriPlugin<R> {
plugin::Builder::new("single-instance")
.setup(|app| {
let app_name = &app.package_info().name;
@@ -70,8 +70,14 @@ pub fn init<R: Runtime>(f: Box<SingleInstanceCallback>) -> TauriPlugin<R> {
} else {
app.manage(MutexHandle(hmutex));
let hwnd = create_event_target_window(&class_name, &window_name);
unsafe { SetWindowLongPtrW(hwnd, GWL_USERDATA, Box::into_raw(Box::new(f)) as _) };
let hwnd = create_event_target_window::<R>(&class_name, &window_name);
unsafe {
SetWindowLongPtrW(
hwnd,
GWL_USERDATA,
Box::into_raw(Box::new((app.clone(), f))) as _,
)
};
app.manage(TargetWindowHandle(hwnd));
}
@@ -94,13 +100,15 @@ pub fn init<R: Runtime>(f: Box<SingleInstanceCallback>) -> TauriPlugin<R> {
.build()
}
unsafe extern "system" fn single_instance_window_proc(
unsafe extern "system" fn single_instance_window_proc<R: Runtime>(
hwnd: HWND,
msg: u32,
wparam: WPARAM,
lparam: LPARAM,
) -> LRESULT {
let callback_ptr = GetWindowLongPtrW(hwnd, GWL_USERDATA) as *mut Box<SingleInstanceCallback>;
let data_ptr = GetWindowLongPtrW(hwnd, GWL_USERDATA)
as *mut (AppHandle<R>, Box<SingleInstanceCallback<R>>);
let (app_handle, callback) = &mut *data_ptr;
match msg {
WM_COPYDATA => {
@@ -110,25 +118,25 @@ unsafe extern "system" fn single_instance_window_proc(
let mut s = data.split("|");
let cwd = s.next().unwrap();
let args = s.into_iter().map(|s| s.to_string()).collect();
(*callback_ptr)(args, cwd.to_string());
callback(&app_handle, args, cwd.to_string());
}
1
}
WM_DESTROY => {
let _ = Box::from_raw(callback_ptr);
let _ = Box::from_raw(data_ptr);
0
}
_ => DefWindowProcW(hwnd, msg, wparam, lparam),
}
}
fn create_event_target_window(class_name: &str, window_name: &str) -> HWND {
fn create_event_target_window<R: Runtime>(class_name: &str, window_name: &str) -> HWND {
unsafe {
let class = WNDCLASSEXW {
cbSize: std::mem::size_of::<WNDCLASSEXW>() as u32,
style: 0,
lpfnWndProc: Some(single_instance_window_proc),
lpfnWndProc: Some(single_instance_window_proc::<R>),
cbClsExtra: 0,
cbWndExtra: 0,
hInstance: GetModuleHandleW(std::ptr::null()),