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Fix up some examples (#3614)

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This commit is contained in:
Emil Ernerfeldt
2023-11-23 12:58:44 +01:00
committed by GitHub
parent a2b15b23ad
commit 24913ceeba
17 changed files with 123 additions and 82 deletions
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23
examples/confirm_exit/src/main.rs
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@@ -17,33 +17,38 @@ fn main() -> Result<(), eframe::Error> {
#[derive(Default)]
struct MyApp {
allowed_to_close: bool,
show_confirmation_dialog: bool,
allowed_to_close: bool,
}
impl eframe::App for MyApp {
fn on_close_event(&mut self) -> bool {
self.show_confirmation_dialog = true;
self.allowed_to_close
}
fn update(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) {
egui::CentralPanel::default().show(ctx, |ui| {
ui.heading("Try to close the window");
});
if ctx.input(|i| i.viewport().close_requested()) {
if self.allowed_to_close {
// do nothing - we will close
} else {
ctx.send_viewport_cmd(egui::ViewportCommand::CancelClose);
self.show_confirmation_dialog = true;
}
}
if self.show_confirmation_dialog {
// Show confirmation dialog:
egui::Window::new("Do you want to quit?")
.collapsible(false)
.resizable(false)
.show(ctx, |ui| {
ui.horizontal(|ui| {
if ui.button("Cancel").clicked() {
if ui.button("No").clicked() {
self.show_confirmation_dialog = false;
self.allowed_to_close = false;
}
if ui.button("Yes!").clicked() {
if ui.button("Yes").clicked() {
self.show_confirmation_dialog = false;
self.allowed_to_close = true;
ui.ctx().send_viewport_cmd(egui::ViewportCommand::Close);
}