61 lines
2.0 KiB
Rust
61 lines
2.0 KiB
Rust
#![cfg_attr(not(debug_assertions), windows_subsystem = "windows")] // hide console window on Windows in release
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#![allow(rustdoc::missing_crate_level_docs)] // it's an example
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use eframe::egui;
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fn main() -> Result<(), eframe::Error> {
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env_logger::init(); // Log to stderr (if you run with `RUST_LOG=debug`).
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let options = eframe::NativeOptions {
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viewport: egui::ViewportBuilder::default().with_inner_size([320.0, 240.0]),
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..Default::default()
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};
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eframe::run_native(
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"Confirm exit",
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options,
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Box::new(|_cc| Box::<MyApp>::default()),
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)
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}
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#[derive(Default)]
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struct MyApp {
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show_confirmation_dialog: bool,
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allowed_to_close: bool,
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}
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impl eframe::App for MyApp {
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fn update(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) {
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egui::CentralPanel::default().show(ctx, |ui| {
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ui.heading("Try to close the window");
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});
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if ctx.input(|i| i.viewport().close_requested()) {
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if self.allowed_to_close {
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// do nothing - we will close
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} else {
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ctx.send_viewport_cmd(egui::ViewportCommand::CancelClose);
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self.show_confirmation_dialog = true;
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}
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}
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if self.show_confirmation_dialog {
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egui::Window::new("Do you want to quit?")
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.collapsible(false)
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.resizable(false)
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.show(ctx, |ui| {
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ui.horizontal(|ui| {
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if ui.button("No").clicked() {
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self.show_confirmation_dialog = false;
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self.allowed_to_close = false;
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}
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if ui.button("Yes").clicked() {
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self.show_confirmation_dialog = false;
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self.allowed_to_close = true;
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ui.ctx().send_viewport_cmd(egui::ViewportCommand::Close);
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}
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});
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});
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}
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}
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}
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