jared
5cc84991f2
CreateDIBSection does not guarantee zeroed memory. Uninitialized bytes with non-zero RGB but zero alpha were getting alpha=255 set by the existing pixel loop, causing a black square around the badge circle. Zeroing with write_bytes before GDI drawing ensures only explicitly painted pixels are opaque. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
570 lines
23 KiB
Rust
570 lines
23 KiB
Rust
#![cfg_attr(
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all(not(debug_assertions), target_os = "windows"),
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windows_subsystem = "windows"
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)]
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use tauri::{
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menu::{Menu, MenuItem, PredefinedMenuItem},
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tray::{MouseButton, MouseButtonState, TrayIconBuilder, TrayIconEvent},
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webview::{NewWindowResponse, PageLoadEvent, WebviewWindowBuilder},
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Manager, WebviewUrl,
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};
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use tauri_plugin_opener::OpenerExt;
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/// Bring the main window to the foreground from the tray / a hidden /
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/// minimized state. Shared by the tray, single-instance, and deep-link paths.
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fn show_main(app: &tauri::AppHandle) {
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if let Some(window) = app.get_webview_window("main") {
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let _ = window.show();
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let _ = window.unminimize();
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let _ = window.set_focus();
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}
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}
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/// Hand a `matrix:` / `matrix.to` URL to the web app by dispatching a DOM
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/// CustomEvent the client listens for (see useDeepLinkNavigate.ts). Uses
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/// `eval` so we don't need the @tauri-apps/api event package on the web side.
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fn forward_deeplink(app: &tauri::AppHandle, url: &str) {
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show_main(app);
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if let Some(window) = app.get_webview_window("main") {
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if let Ok(json) = serde_json::to_string(url) {
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let _ = window.eval(&format!(
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"window.dispatchEvent(new CustomEvent('lotus-deeplink',{{detail:{json}}}))"
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));
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}
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}
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}
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/// Pull the first `matrix:` link out of a process's CLI args (Windows/Linux
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/// pass deep-link URLs as argv to a freshly launched instance).
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fn matrix_url_from_args(args: &[String]) -> Option<String> {
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args.iter().find(|a| a.starts_with("matrix:")).cloned()
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}
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// Injected into every page before app scripts load.
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// Patches window.Notification to route through tauri-plugin-notification so
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// WebView2's default "denied" state never reaches cinny's permission check.
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// Also patches navigator.permissions.query so the React hook sees "granted".
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const NOTIFICATION_BRIDGE: &str = r#"(function(){
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function TauriNotification(title,options){
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var opts=options||{};
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try{
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window.__TAURI_INTERNALS__.invoke('send_notification',{
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title:String(title),
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body:opts.body!=null?String(opts.body):undefined
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}).catch(function(){});
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}catch(_){}
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}
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TauriNotification.prototype=Object.create(EventTarget.prototype);
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TauriNotification.prototype.constructor=TauriNotification;
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TauriNotification.prototype.close=function(){};
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Object.defineProperty(TauriNotification,'permission',{get:function(){return 'granted';},configurable:true});
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TauriNotification.requestPermission=function(){return Promise.resolve('granted');};
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TauriNotification.maxActions=0;
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Object.defineProperty(window,'Notification',{value:TauriNotification,writable:true,configurable:true});
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var _q=navigator.permissions.query.bind(navigator.permissions);
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navigator.permissions.query=function(desc){
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if(desc&&desc.name==='notifications'){
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return Promise.resolve(Object.assign(new EventTarget(),{state:'granted',onchange:null}));
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}
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return _q(desc);
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};
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})();"#;
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#[tauri::command]
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fn send_notification(
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app: tauri::AppHandle,
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title: String,
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body: Option<String>,
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) -> Result<(), String> {
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use tauri_plugin_notification::NotificationExt;
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let mut builder = app.notification().builder().title(&title);
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if let Some(b) = &body {
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builder = builder.body(b);
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}
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builder.show().map_err(|e| e.to_string())
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}
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#[derive(serde::Serialize)]
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struct UpdateInfo {
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available: bool,
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version: Option<String>,
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}
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#[tauri::command]
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async fn check_for_update(app: tauri::AppHandle) -> Result<UpdateInfo, String> {
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#[cfg(not(any(target_os = "android", target_os = "ios")))]
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{
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use tauri_plugin_updater::UpdaterExt;
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return match app.updater().map_err(|e| e.to_string())?.check().await {
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Ok(Some(update)) => Ok(UpdateInfo { available: true, version: Some(update.version) }),
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Ok(None) => Ok(UpdateInfo { available: false, version: None }),
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Err(e) => Err(e.to_string()),
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};
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}
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#[cfg(any(target_os = "android", target_os = "ios"))]
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Ok(UpdateInfo { available: false, version: None })
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}
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#[tauri::command]
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async fn install_update(app: tauri::AppHandle) -> Result<(), String> {
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#[cfg(not(any(target_os = "android", target_os = "ios")))]
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{
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use tauri_plugin_updater::UpdaterExt;
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if let Some(update) = app
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.updater()
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.map_err(|e| e.to_string())?
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.check()
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.await
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.map_err(|e| e.to_string())?
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{
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update
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.download_and_install(|_chunk, _total| {}, || {})
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.await
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.map_err(|e| e.to_string())?;
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}
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}
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Ok(())
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}
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#[tauri::command]
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fn set_badge_count(count: u32, window: tauri::Window) -> Result<(), String> {
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#[cfg(target_os = "windows")]
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{
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use windows::{
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core::{BOOL, PCWSTR},
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Win32::{
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Foundation::{COLORREF, HWND, RECT},
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Graphics::Gdi::{
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CreateBitmap, CreateCompatibleDC, CreateDIBSection, CreateFontW, CreatePen,
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CreateSolidBrush, DeleteDC, DeleteObject, DIB_RGB_COLORS, DrawTextW, Ellipse,
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ReleaseDC, SelectObject, SetBkMode, SetTextColor, BITMAPINFO,
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BITMAPINFOHEADER, BI_RGB, CLIP_DEFAULT_PRECIS, DEFAULT_CHARSET, DEFAULT_PITCH,
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DEFAULT_QUALITY, DT_CENTER, DT_SINGLELINE, DT_VCENTER, FF_DONTCARE,
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FW_BOLD, OUT_DEFAULT_PRECIS, PS_NULL, TRANSPARENT,
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},
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UI::{
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Shell::{ITaskbarList3, TaskbarList},
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WindowsAndMessaging::{CreateIconIndirect, DestroyIcon, HICON, ICONINFO},
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},
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System::Com::{CoCreateInstance, CLSCTX_INPROC_SERVER},
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},
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};
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let hwnd = HWND(window.hwnd().map_err(|e| e.to_string())?.0 as _);
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let hicon: Option<HICON> = if count > 0 {
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let label = if count > 99 {
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"99+".to_string()
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} else {
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count.to_string()
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};
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let mut label_wide: Vec<u16> = label.encode_utf16().chain(std::iter::once(0)).collect();
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unsafe {
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let size = 20i32;
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let hdc_screen = windows::Win32::Graphics::Gdi::GetDC(None);
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let hdc = CreateCompatibleDC(Some(hdc_screen));
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let bmi = BITMAPINFO {
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bmiHeader: BITMAPINFOHEADER {
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biSize: std::mem::size_of::<BITMAPINFOHEADER>() as u32,
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biWidth: size,
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biHeight: -size,
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biPlanes: 1,
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biBitCount: 32,
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biCompression: BI_RGB.0,
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..Default::default()
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},
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..Default::default()
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};
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let mut bits: *mut std::ffi::c_void = std::ptr::null_mut();
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let hbm_color =
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CreateDIBSection(Some(hdc), &bmi, DIB_RGB_COLORS, &mut bits, None, 0)
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.map_err(|e| e.to_string())?;
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// Zero-init so undrawn pixels are fully transparent (CreateDIBSection
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// does not guarantee zeroed memory; garbage bytes cause a black square).
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if !bits.is_null() {
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std::ptr::write_bytes(bits as *mut u8, 0, (size * size * 4) as usize);
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}
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let old_bm = SelectObject(hdc, hbm_color.into());
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let hbrush = CreateSolidBrush(COLORREF(0x003030DD));
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let old_brush = SelectObject(hdc, hbrush.into());
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let hpen = CreatePen(PS_NULL, 0, COLORREF(0));
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let old_pen = SelectObject(hdc, hpen.into());
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let _ = Ellipse(hdc, 0, 0, size, size);
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let hfont = CreateFontW(
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14,
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0,
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0,
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0,
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FW_BOLD.0 as i32,
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0,
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0,
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0,
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DEFAULT_CHARSET,
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OUT_DEFAULT_PRECIS,
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CLIP_DEFAULT_PRECIS,
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DEFAULT_QUALITY,
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(DEFAULT_PITCH.0 | FF_DONTCARE.0) as u32,
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windows::core::w!("Segoe UI"),
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);
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let old_font = SelectObject(hdc, hfont.into());
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SetTextColor(hdc, COLORREF(0x00FFFFFF));
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let _ = SetBkMode(hdc, TRANSPARENT);
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let mut rect = RECT { left: 0, top: 0, right: size, bottom: size };
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let label_len = label_wide.len() - 1;
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let _ = DrawTextW(
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hdc,
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&mut label_wide[..label_len],
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&mut rect,
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DT_CENTER | DT_VCENTER | DT_SINGLELINE,
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);
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SelectObject(hdc, old_brush);
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SelectObject(hdc, old_pen);
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SelectObject(hdc, old_font);
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SelectObject(hdc, old_bm);
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let _ = DeleteObject(hbrush.into());
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let _ = DeleteObject(hpen.into());
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let _ = DeleteObject(hfont.into());
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// GDI drawing leaves the alpha channel at 0 for all pixels.
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// Set alpha=255 for every painted pixel so Windows uses per-pixel
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// alpha compositing instead of falling back to the opaque mask,
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// which would render unpainted corner pixels as a black square.
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let pixel_count = (size * size) as usize;
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let pixels =
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std::slice::from_raw_parts_mut(bits as *mut u32, pixel_count);
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for pixel in pixels.iter_mut() {
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if *pixel != 0 {
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*pixel |= 0xFF00_0000u32;
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}
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}
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let hbm_mask = CreateBitmap(size, size, 1, 1, None);
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if hbm_mask.0 as usize == 0 {
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let _ = DeleteObject(hbm_color.into());
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return Err("CreateBitmap failed".to_string());
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}
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let icon_info = ICONINFO {
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fIcon: BOOL(1),
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xHotspot: 0,
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yHotspot: 0,
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hbmMask: hbm_mask,
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hbmColor: hbm_color,
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};
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let hicon = CreateIconIndirect(&icon_info).map_err(|e| {
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let _ = DeleteObject(hbm_color.into());
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let _ = DeleteObject(hbm_mask.into());
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e.to_string()
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})?;
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let _ = DeleteObject(hbm_color.into());
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let _ = DeleteObject(hbm_mask.into());
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let _ = DeleteDC(hdc);
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let _ = ReleaseDC(None, hdc_screen);
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Some(hicon)
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}
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} else {
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None
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};
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unsafe {
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let taskbar: ITaskbarList3 =
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CoCreateInstance(&TaskbarList, None, CLSCTX_INPROC_SERVER)
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.map_err(|e| e.to_string())?;
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taskbar.HrInit().map_err(|e| e.to_string())?;
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taskbar
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.SetOverlayIcon(hwnd, hicon.unwrap_or_default(), PCWSTR::null())
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.map_err(|e| e.to_string())?;
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if let Some(icon) = hicon {
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let _ = DestroyIcon(icon);
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}
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}
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}
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Ok(())
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}
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/// Held in managed state so the tray's unread overlay can be updated at runtime.
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/// Keeping the TrayIcon handle here also keeps the tray alive.
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struct TrayUnreadState {
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tray: tauri::tray::TrayIcon,
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base_rgba: Vec<u8>,
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width: u32,
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height: u32,
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}
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/// Paint a small white-ringed red "unread" dot into the bottom-right corner of
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/// an RGBA buffer, in place. Cross-platform (operates on raw pixels).
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fn draw_unread_dot(rgba: &mut [u8], width: u32, height: u32) {
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let w = width as i32;
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let h = height as i32;
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if w <= 0 || h <= 0 {
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return;
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}
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let r = ((w.min(h) as f32) * 0.30) as i32;
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let ring = ((r as f32) * 0.18).max(1.0) as i32;
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let cx = w - r - ((w as f32) * 0.06) as i32;
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let cy = h - r - ((h as f32) * 0.06) as i32;
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for y in (cy - r - ring).max(0)..(cy + r + ring).min(h) {
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for x in (cx - r - ring).max(0)..(cx + r + ring).min(w) {
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let dx = x - cx;
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let dy = y - cy;
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let dist2 = dx * dx + dy * dy;
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let idx = ((y * w + x) as usize) * 4;
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if idx + 3 >= rgba.len() {
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continue;
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}
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if dist2 <= r * r {
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rgba[idx] = 0xDD;
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rgba[idx + 1] = 0x30;
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rgba[idx + 2] = 0x30;
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rgba[idx + 3] = 0xFF;
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} else if dist2 <= (r + ring) * (r + ring) {
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rgba[idx] = 0xFF;
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rgba[idx + 1] = 0xFF;
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rgba[idx + 2] = 0xFF;
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rgba[idx + 3] = 0xFF;
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}
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}
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}
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}
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/// Overlay (or clear) the unread dot on the tray icon.
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#[tauri::command]
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fn set_tray_unread(unread: bool, state: tauri::State<'_, TrayUnreadState>) -> Result<(), String> {
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let mut rgba = state.base_rgba.clone();
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if unread {
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draw_unread_dot(&mut rgba, state.width, state.height);
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}
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let icon = tauri::image::Image::new_owned(rgba, state.width, state.height);
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state.tray.set_icon(Some(icon)).map_err(|e| e.to_string())
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}
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/// Flash the taskbar button to draw attention (e.g. a new mention while the
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/// window is unfocused). Clears automatically once the window is focused.
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#[tauri::command]
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fn flash_window(window: tauri::Window) -> Result<(), String> {
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window
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.request_user_attention(Some(tauri::UserAttentionType::Informational))
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.map_err(|e| e.to_string())
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}
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pub fn run() {
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let port: u16 = 44548;
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let context = tauri::generate_context!();
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#[allow(unused_mut)]
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let mut builder = tauri::Builder::default();
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// Single-instance MUST be registered first: a second launch focuses the
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// existing window (and forwards any matrix: link) instead of colliding on
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// the localhost port. Desktop-only plugin.
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#[cfg(desktop)]
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{
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builder = builder.plugin(tauri_plugin_single_instance::init(|app, argv, _cwd| {
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show_main(app);
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if let Some(url) = matrix_url_from_args(&argv) {
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forward_deeplink(app, &url);
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}
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}));
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}
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builder = builder
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.invoke_handler(tauri::generate_handler![
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set_badge_count,
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set_tray_unread,
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flash_window,
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send_notification,
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check_for_update,
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install_update,
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])
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.plugin(tauri_plugin_localhost::Builder::new(port).build())
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.plugin(tauri_plugin_window_state::Builder::default().build())
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.plugin(tauri_plugin_opener::init())
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.plugin(tauri_plugin_notification::init())
|
|
.plugin(tauri_plugin_deep_link::init());
|
|
|
|
#[cfg(not(any(target_os = "android", target_os = "ios")))]
|
|
{
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builder = builder.plugin(tauri_plugin_updater::Builder::new().build());
|
|
}
|
|
|
|
builder
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|
.setup(move |app| {
|
|
// --- System tray: keeps Lotus Chat running in the background so
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|
// notifications keep arriving after the window is closed-to-tray. ---
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|
let base_icon = app.default_window_icon().cloned();
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|
let open_item = MenuItem::with_id(app, "open", "Open Lotus Chat", true, None::<&str>)?;
|
|
let quit_item = MenuItem::with_id(app, "quit", "Quit Lotus Chat", true, None::<&str>)?;
|
|
let separator = PredefinedMenuItem::separator(app)?;
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|
let tray_menu = Menu::with_items(app, &[&open_item, &separator, &quit_item])?;
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|
let tray = TrayIconBuilder::with_id("main-tray")
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.icon(base_icon.clone().expect("bundled window icon"))
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.tooltip("Lotus Chat")
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|
.menu(&tray_menu)
|
|
.show_menu_on_left_click(false)
|
|
.on_menu_event(|app, event| match event.id.as_ref() {
|
|
"open" => show_main(app),
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|
"quit" => app.exit(0),
|
|
_ => {}
|
|
})
|
|
.on_tray_icon_event(|tray, event| {
|
|
if let TrayIconEvent::Click {
|
|
button: MouseButton::Left,
|
|
button_state: MouseButtonState::Up,
|
|
..
|
|
} = event
|
|
{
|
|
let app = tray.app_handle();
|
|
if let Some(window) = app.get_webview_window("main") {
|
|
if window.is_visible().unwrap_or(false) {
|
|
let _ = window.hide();
|
|
} else {
|
|
show_main(app);
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|
}
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|
}
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|
}
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|
})
|
|
.build(app)?;
|
|
|
|
// Keep the tray handle (and base icon pixels) in managed state so
|
|
// set_tray_unread can re-render the icon at runtime.
|
|
if let Some(img) = base_icon {
|
|
let base_rgba = img.rgba().to_vec();
|
|
let (width, height) = (img.width(), img.height());
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|
app.manage(TrayUnreadState {
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|
tray,
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|
base_rgba,
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width,
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|
height,
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});
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|
}
|
|
|
|
#[cfg(debug_assertions)]
|
|
let window_url = WebviewUrl::App(Default::default());
|
|
|
|
#[cfg(not(debug_assertions))]
|
|
let window_url = {
|
|
let url = format!("http://localhost:{}", port).parse().unwrap();
|
|
WebviewUrl::External(url)
|
|
};
|
|
|
|
let app_handle = app.handle().clone();
|
|
let window = WebviewWindowBuilder::new(app, "main".to_string(), window_url)
|
|
.title("Lotus Chat")
|
|
// First-run defaults; tauri-plugin-window-state restores geometry
|
|
// on later launches.
|
|
.inner_size(1100.0, 720.0)
|
|
.min_inner_size(480.0, 600.0)
|
|
.center()
|
|
// Start hidden and reveal once the page has painted, to avoid the
|
|
// white launch flash.
|
|
.visible(false)
|
|
.initialization_script(NOTIFICATION_BRIDGE)
|
|
.disable_drag_drop_handler()
|
|
.on_page_load(|window, payload| {
|
|
if matches!(payload.event(), PageLoadEvent::Finished) {
|
|
let _ = window.show();
|
|
}
|
|
})
|
|
.on_new_window(move |url, _features| {
|
|
let _ = app_handle.opener().open_url(url.as_str(), None::<&str>);
|
|
NewWindowResponse::Deny
|
|
})
|
|
.build()?;
|
|
|
|
// Close-to-tray: hide instead of exiting; the app is quit explicitly
|
|
// from the tray menu.
|
|
let window_for_close = window.clone();
|
|
window.on_window_event(move |event| {
|
|
if let tauri::WindowEvent::CloseRequested { api, .. } = event {
|
|
api.prevent_close();
|
|
let _ = window_for_close.hide();
|
|
}
|
|
});
|
|
|
|
// Failsafe: never leave the window stuck hidden if the page-load
|
|
// event doesn't fire for some reason.
|
|
let window_for_show = window.clone();
|
|
std::thread::spawn(move || {
|
|
std::thread::sleep(std::time::Duration::from_secs(8));
|
|
let _ = window_for_show.show();
|
|
});
|
|
|
|
// Deep links (matrix:): route both the cold-start case and the
|
|
// already-running case (forwarded via single-instance argv) into the
|
|
// web client.
|
|
{
|
|
use tauri_plugin_deep_link::DeepLinkExt;
|
|
// Runtime scheme registration is a Linux/Windows-only API; macOS
|
|
// registers the scheme from the bundle config at build time.
|
|
#[cfg(any(target_os = "linux", target_os = "windows"))]
|
|
let _ = app.deep_link().register_all();
|
|
let deep_link_handle = app.handle().clone();
|
|
app.deep_link().on_open_url(move |event| {
|
|
for url in event.urls() {
|
|
forward_deeplink(&deep_link_handle, url.as_str());
|
|
}
|
|
});
|
|
if let Some(url) = matrix_url_from_args(&std::env::args().collect::<Vec<_>>()) {
|
|
forward_deeplink(&app.handle().clone(), &url);
|
|
}
|
|
}
|
|
|
|
// Windows 11 Mica backdrop. The app paints an opaque TDS background,
|
|
// so this is subtle (mainly window chrome); harmless if unsupported.
|
|
#[cfg(target_os = "windows")]
|
|
{
|
|
let _ = window_vibrancy::apply_mica(&window, Some(true));
|
|
}
|
|
|
|
// Auto-grant camera, microphone, and notification permissions in WebView2.
|
|
#[cfg(target_os = "windows")]
|
|
window.with_webview(|webview| {
|
|
use webview2_com::{
|
|
Microsoft::Web::WebView2::Win32::{
|
|
COREWEBVIEW2_PERMISSION_KIND,
|
|
COREWEBVIEW2_PERMISSION_KIND_CAMERA,
|
|
COREWEBVIEW2_PERMISSION_KIND_MICROPHONE,
|
|
COREWEBVIEW2_PERMISSION_KIND_NOTIFICATIONS,
|
|
COREWEBVIEW2_PERMISSION_STATE_ALLOW,
|
|
},
|
|
PermissionRequestedEventHandler,
|
|
};
|
|
|
|
let controller = webview.controller();
|
|
if let Ok(core) = unsafe { controller.CoreWebView2() } {
|
|
let handler = PermissionRequestedEventHandler::create(Box::new(
|
|
|_sender, args| {
|
|
if let Some(args) = args {
|
|
let mut kind = COREWEBVIEW2_PERMISSION_KIND(0);
|
|
unsafe { args.PermissionKind(&mut kind) }?;
|
|
if kind == COREWEBVIEW2_PERMISSION_KIND_MICROPHONE
|
|
|| kind == COREWEBVIEW2_PERMISSION_KIND_CAMERA
|
|
|| kind == COREWEBVIEW2_PERMISSION_KIND_NOTIFICATIONS
|
|
{
|
|
unsafe {
|
|
args.SetState(COREWEBVIEW2_PERMISSION_STATE_ALLOW)
|
|
}?;
|
|
}
|
|
}
|
|
Ok(())
|
|
},
|
|
));
|
|
let mut token = Default::default();
|
|
let _ = unsafe { core.add_PermissionRequested(&handler, &mut token) };
|
|
}
|
|
})?;
|
|
|
|
Ok(())
|
|
})
|
|
.run(context)
|
|
.expect("error while building tauri application");
|
|
}
|