From 20dbac018a51b7feaef2f96865a69b5f6e4f47fa Mon Sep 17 00:00:00 2001
From: Tim <tymmesyde@gmail.com>
Date: Wed, 2 Apr 2025 13:15:25 +0200
Subject: [PATCH] refactor(app): use WM_SETFOCUS event instead to send ipc
 win-state-change

---
 src/stremio_app/app.rs | 34 ++++++++++++++++++++++++++++++++--
 1 file changed, 32 insertions(+), 2 deletions(-)

diff --git a/src/stremio_app/app.rs b/src/stremio_app/app.rs
index f98b0c9..b9019a1 100644
--- a/src/stremio_app/app.rs
+++ b/src/stremio_app/app.rs
@@ -13,7 +13,10 @@ use std::{
     thread, time,
 };
 use url::Url;
-use winapi::um::{winbase::CREATE_BREAKAWAY_FROM_JOB, winuser::WS_EX_TOPMOST};
+use winapi::um::{
+    winbase::CREATE_BREAKAWAY_FROM_JOB,
+    winuser::{WM_SETFOCUS, WS_EX_TOPMOST},
+};
 
 use crate::stremio_app::{
     constants::{APP_NAME, UPDATE_ENDPOINT, UPDATE_INTERVAL, WINDOW_MIN_HEIGHT, WINDOW_MIN_WIDTH},
@@ -135,6 +138,8 @@ impl MainWindow {
         self.window.set_visible(!self.start_hidden);
         self.tray.tray_show_hide.set_checked(!self.start_hidden);
 
+        self.handle_on_win_focus();
+
         let player_channel = self.player.channel.borrow();
         let (player_tx, player_rx) = player_channel
             .as_ref()
@@ -345,6 +350,32 @@ impl MainWindow {
             } // recv
         }); // thread
     }
+    fn handle_on_win_focus(&self) {
+        if let (Some(hwnd), Ok(web_channel), Ok(style)) = (
+            self.window.handle.hwnd(),
+            self.webview.channel.try_borrow(),
+            self.saved_window_style.try_borrow(),
+        ) {
+            let state = style.clone().get_window_state(hwnd);
+            drop(style);
+            let (web_tx, _) = web_channel
+                .as_ref()
+                .expect("Cannont obtain communication channel for the Web UI");
+            let web_tx_app = web_tx.clone();
+
+            let handler_id = 0x10001;
+            let handle = self.window.handle;
+            nwg::bind_raw_event_handler(&handle, handler_id, move |_hwnd, msg, _w, _l| {
+                if msg == WM_SETFOCUS {
+                    web_tx_app.send(RPCResponse::state_change(state)).ok();
+                }
+                None
+            })
+            .ok();
+        } else {
+            eprintln!("Cannot obtain window handle or communication channel");
+        }
+    }
     fn on_min_max(&self, data: &nwg::EventData) {
         let data = data.on_min_max();
         data.set_min_size(WINDOW_MIN_WIDTH, WINDOW_MIN_HEIGHT);
@@ -353,7 +384,6 @@ impl MainWindow {
         if !self.splash_screen.visible() {
             self.webview.fit_to_window(self.window.handle.hwnd());
         }
-        self.transmit_window_state_change();
     }
     fn on_toggle_fullscreen_notice(&self) {
         if let Some(hwnd) = self.window.handle.hwnd() {