Function relm4::main_application

source · 
pub fn main_application() -> Application
Expand description

Returns the global gtk::Application that’s used internally by RelmApp.

Retrieving this value can be useful for graceful shutdown by calling ApplicationExt::quit() on it.

Note: The global application can be overwritten by calling RelmApp::with_app().

Examples found in repository?
relm4/examples/components.rs (line 210)
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    fn update(&mut self, msg: Self::Input, _sender: ComponentSender<Self>) {
        match msg {
            AppMsg::SetMode(mode) => {
                self.mode = mode;
            }
            AppMsg::CloseRequest => {
                self.dialog.emit(DialogMsg::Show);
            }
            AppMsg::Close => {
                relm4::main_application().quit();
            }
        }
    }
More examples
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relm4-components/examples/alert.rs (line 77)
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    fn update(&mut self, msg: AppMsg, _sender: ComponentSender<Self>) {
        match msg {
            AppMsg::Increment => {
                self.counter = self.counter.wrapping_add(1);
            }
            AppMsg::Decrement => {
                self.counter = self.counter.wrapping_sub(1);
            }
            AppMsg::CloseRequest => {
                if self.counter == 42 {
                    relm4::main_application().quit();
                } else {
                    self.alert_toggle = !self.alert_toggle;
                    if self.alert_toggle {
                        self.dialog.emit(AlertMsg::Show);
                    } else {
                        self.second_dialog.emit(AlertMsg::Show);
                    }
                }
            }
            AppMsg::Save => {
                println!("* Open save dialog here *");
            }
            AppMsg::Close => {
                relm4::main_application().quit();
            }
            AppMsg::Ignore => (),
        }
    }
relm4/examples/actions.rs (line 67)
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    fn init(
        _init: Self::Init,
        root: &Self::Root,
        sender: ComponentSender<Self>,
    ) -> ComponentParts<Self> {
        let menu_model = gtk::gio::Menu::new();
        menu_model.append(Some("Stateless"), Some(&ExampleAction::action_name()));

        let model = Self { counter: 0 };

        let widgets = view_output!();

        let app = relm4::main_application();
        app.set_accelerators_for_action::<ExampleAction>(&["<primary>W"]);

        let group = RelmActionGroup::<WindowActionGroup>::new();

        let action: RelmAction<ExampleAction> = RelmAction::new_stateless(move |_| {
            println!("Statelesss action!");
            sender.input(Msg::Increment);
        });

        let action2: RelmAction<ExampleU8Action> =
            RelmAction::new_stateful_with_target_value(&0, |_, state, value| {
                println!("Stateful action -> state: {state}, value: {value}");
                *state += value;
            });

        group.add_action(&action);
        group.add_action(&action2);

        let actions = group.into_action_group();
        widgets
            .main_window
            .insert_action_group(WindowActionGroup::NAME, Some(&actions));

        ComponentParts { model, widgets }
    }
relm4/examples/menu.rs (line 126)
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    fn init(
        counter: Self::Init,
        root: &Self::Root,
        sender: ComponentSender<Self>,
    ) -> ComponentParts<Self> {
        // ============================================================
        //
        // You can also use menu! outside of the widget macro.
        // This is the manual equivalent to the the menu! macro above.
        //
        // ============================================================
        //
        // relm4::menu! {
        //     main_menu: {
        //         custom: "my_widget",
        //         "Example" => ExampleAction,
        //         "Example2" => ExampleAction,
        //         "Example toggle" => ExampleU8Action(1_u8),
        //         section! {
        //             "Section example" => ExampleAction,
        //             "Example toggle" => ExampleU8Action(1_u8),
        //         },
        //         section! {
        //             "Example" => ExampleAction,
        //             "Example2" => ExampleAction,
        //             "Example Value" => ExampleU8Action(1_u8),
        //         }
        //     }
        // };

        let model = Self { counter };
        let widgets = view_output!();

        let app = relm4::main_application();
        app.set_accelerators_for_action::<ExampleAction>(&["<primary>W"]);

        let group = RelmActionGroup::<WindowActionGroup>::new();

        let action: RelmAction<ExampleAction> = {
            RelmAction::new_stateless(move |_| {
                println!("Statelesss action!");
                sender.input(Msg::Increment);
            })
        };

        let action2: RelmAction<ExampleU8Action> =
            RelmAction::new_stateful_with_target_value(&0, |_, state, _value| {
                *state ^= 1;
                dbg!(state);
            });

        group.add_action(&action);
        group.add_action(&action2);

        let actions = group.into_action_group();
        widgets
            .main_window
            .insert_action_group("win", Some(&actions));

        ComponentParts { model, widgets }
    }