nex-launch 2.1.0

A keyboard-first launcher for Windows
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238

//! First-time indexing progress window (tao + wry).
//!
//! Replaces the legacy Win32 modal progress window and the Iced stub.
//! A tiny borderless tao window hosts a wry WebView that renders an
//! animated progress bar. The event loop runs at ControlFlow::Poll and
//! reads progress directly from an Arc<AtomicU32> on each NewEvents
//! cycle — no polling thread needed. The window lives only while the
//! closure runs.

#![cfg(target_os = "windows")]

use std::sync::atomic::{AtomicU32, Ordering};
use std::sync::Arc;
use std::thread;
use std::time::Duration;

use tao::dpi::{LogicalSize, PhysicalPosition};
use tao::event::Event;
use tao::event_loop::{ControlFlow, EventLoopBuilder};
use tao::platform::run_return::EventLoopExtRunReturn;
use tao::platform::windows::{WindowBuilderExtWindows, WindowExtWindows};
use tao::window::WindowBuilder;
use wry::WebViewBuilder;

use windows_sys::Win32::Foundation::{HWND, RECT};
use windows_sys::Win32::Graphics::Dwm::{
    DwmSetWindowAttribute, DWMWA_WINDOW_CORNER_PREFERENCE,
};
use windows_sys::Win32::Graphics::Gdi::{
    GetMonitorInfoW, MonitorFromPoint, MONITORINFO, MONITOR_DEFAULTTOPRIMARY,
};
use windows_sys::Win32::UI::WindowsAndMessaging::{
    GetSystemMetrics, SM_CXSCREEN,
};

const WINDOW_WIDTH: f64 = 360.0;
const WINDOW_HEIGHT: f64 = 120.0;

const PROGRESS_PAGE: &str = r#"<!DOCTYPE html>
<html lang="en" data-theme="dark">
<head><meta charset="utf-8"/><meta name="viewport" content="width=device-width,initial-scale=1"/>
<title>Nex Indexing</title>
<style>
:root{--bg:rgba(22,22,25,0.62);--text:#f4f4f6;--bar-bg:rgba(255,255,255,0.08);--bar-fg:#6ea8fe;--border:rgba(255,255,255,0.09)}
*{box-sizing:border-box;margin:0;padding:0}
html,body{background:transparent;font-family:"Segoe UI Variable Display","Segoe UI Variable","Segoe UI",system-ui,sans-serif;color:var(--text);-webkit-font-smoothing:antialiased}
body{display:flex;align-items:center;justify-content:center;height:100vh}
#panel{width:100%;height:100%;background:var(--bg);border:1px solid var(--border);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:20px}
#label{font-size:14px;color:var(--text);text-align:center}
#track{width:260px;height:6px;background:var(--bar-bg);border-radius:3px;overflow:hidden}
#bar{width:0%;height:100%;background:var(--bar-fg);border-radius:3px;transition:width 200ms ease}
#pct{font-size:12px;color:var(--bar-fg)}
</style></head>
<body>
<main id="panel">
  <div id="label">Indexing your files…</div>
  <div id="track"><div id="bar"></div></div>
  <div id="pct">0%</div>
</main>
<script>
window.updateProgress=function(v){var p=Math.max(0,Math.min(100,v));document.getElementById("bar").style.width=p+"%";document.getElementById("pct").textContent=p+"%"};
</script>
</body>
</html>"#;

enum Cmd {
    WorkDone,
    Show,
    Close,
}

/// Apply rounded corners + acrylic blur. Mirrors `host.rs::apply_window_chrome`
/// but without the drop shadow (avoids double-border artifact with acrylic).
fn apply_chrome(window: &tao::window::Window, hwnd: HWND) {
    unsafe {
        let pref: i32 = 2; // DWMWCP_ROUND
        DwmSetWindowAttribute(
            hwnd,
            DWMWA_WINDOW_CORNER_PREFERENCE as u32,
            &pref as *const i32 as *const std::ffi::c_void,
            std::mem::size_of::<i32>() as u32,
        );
    }
    let tint = Some((18, 18, 20, 130));
    let _ = window_vibrancy::apply_acrylic(window, tint);
}

pub(crate) fn run_with_progress_window<F, T>(work: F) -> T
where
    F: FnOnce(Arc<AtomicU32>) -> T + Send + 'static,
    T: Send + 'static,
{
    let progress = Arc::new(AtomicU32::new(0));
    let result_slot: Arc<std::sync::Mutex<Option<T>>> = Arc::new(std::sync::Mutex::new(None));

    let progress_for_work = progress.clone();
    let result_slot_for_work = result_slot.clone();

    // Spawn the indexing work on its own thread.
    let (work_done_tx, work_done_rx) = std::sync::mpsc::channel::<()>();
    let work_thread = thread::Builder::new()
        .name("nex-indexer".into())
        .spawn(move || {
            let result = work(progress_for_work);
            *result_slot_for_work.lock().unwrap() = Some(result);
            let _ = work_done_tx.send(());
        })
        .expect("failed to spawn indexer thread");

    // Run the progress window on the current (main) thread.
    let mut event_loop = EventLoopBuilder::<Cmd>::with_user_event().build();
    let proxy = event_loop.create_proxy();

    let window = WindowBuilder::new()
        .with_title("Nex Indexing")
        .with_decorations(false)
        .with_transparent(true)
        .with_visible(false) // hidden until WebView2 paints first frame
        .with_no_redirection_bitmap(true)
        .with_resizable(false)
        .with_always_on_top(true)
        .with_inner_size(LogicalSize::new(WINDOW_WIDTH, WINDOW_HEIGHT))
        .with_skip_taskbar(true)
        .with_window_classname("NexProgressWindowClass")
        .build(&event_loop)
        .expect("failed to create progress window");

    // Position on the primary monitor, centered, upper third.
    let (x, y) = progress_window_position();
    window.set_outer_position(PhysicalPosition::new(x, y));

    let hwnd = window.hwnd() as HWND;

    // Chrome: rounded corners + drop shadow + acrylic blur.
    apply_chrome(&window, hwnd);

    // WebView2 renders the dark panel.
    let webview = WebViewBuilder::new()
        .with_transparent(true)
        .with_html(PROGRESS_PAGE)
        .build(&window)
        .expect("failed to build progress webview");

    // Delay showing the window so WebView2 can init & paint first frame
    // — avoids the blank white flash.
    let proxy_show = proxy.clone();
    thread::Builder::new()
        .name("nex-progress-show".into())
        .spawn(move || {
            thread::sleep(Duration::from_millis(200));
            let _ = proxy_show.send_event(Cmd::Show);
        })
        .expect("failed to spawn show thread");

    // Watch for work-thread completion so the window always closes,
    // even if the indexer errors before writing progress=100.
    let proxy_for_done = proxy.clone();
    let _done_watcher = thread::Builder::new()
        .name("nex-progress-done-watcher".into())
        .spawn(move || {
            let _ = work_done_rx.recv();
            let _ = proxy_for_done.send_event(Cmd::WorkDone);
        })
        .expect("failed to spawn done-watcher thread");

    let mut closed = false;
    let progress_for_handler = progress.clone();
    let mut last_progress = u32::MAX;

    let _ = event_loop.run_return(move |event, _target, control_flow| {
        match event {
            Event::NewEvents(_) => {
                *control_flow = ControlFlow::Poll;
                let current = progress_for_handler.load(Ordering::Relaxed);
                if current != last_progress {
                    last_progress = current;
                    let clamped = current.min(100);
                    let _ = webview.evaluate_script(&format!(
                        "window.updateProgress&&window.updateProgress({clamped})"
                    ));
                    if current >= 100 {
                        let p = proxy.clone();
                        thread::spawn(move || {
                            thread::sleep(Duration::from_millis(600));
                            let _ = p.send_event(Cmd::Close);
                        });
                    }
                }
            }
            Event::UserEvent(Cmd::Show) => {
                window.set_visible(true);
            }
            Event::UserEvent(Cmd::WorkDone) => {
                if !closed {
                    closed = true;
                    window.set_visible(false);
                    *control_flow = ControlFlow::Exit;
                }
            }
            Event::UserEvent(Cmd::Close) => {
                if !closed {
                    closed = true;
                    window.set_visible(false);
                    *control_flow = ControlFlow::Exit;
                }
            }
            _ => {
                *control_flow = ControlFlow::Poll;
            }
        }
    });

    // Wait for the work thread to finish, then return the result.
    // Join propagates any panics. The done-watcher ensured the
    // event loop already exited, so this is non-blocking.
    let _ = work_thread.join();
    let result = result_slot
        .lock()
        .unwrap()
        .take()
        .expect("indexer thread finished without storing result");
    result
}

fn progress_window_position() -> (i32, i32) {
    let primary_w = unsafe { GetSystemMetrics(SM_CXSCREEN) };
    let monitor = unsafe { MonitorFromPoint(std::mem::zeroed(), MONITOR_DEFAULTTOPRIMARY) };
    let mut info: MONITORINFO = unsafe { std::mem::zeroed() };
    info.cbSize = std::mem::size_of::<MONITORINFO>() as u32;
    if unsafe { GetMonitorInfoW(monitor, &mut info) } != 0 {
        let work: RECT = info.rcWork;
        let x = work.left + ((work.right - work.left - WINDOW_WIDTH as i32) / 2);
        let y = work.top + ((work.bottom - work.top) as f32 * 0.25) as i32;
        (x.max(0), y.max(0))
    } else {
        (((primary_w - WINDOW_WIDTH as i32) / 2).max(0), 100)
    }
}