Struct ThemeController 

pub struct ThemeController { /* private fields */ }

Implementations

impl ThemeController

pub fn new(selected: MaterialColor, dark_mode: bool) -> Self

pub fn theme(&self, name: impl Into<Cow<'static, str>>) -> Theme

Examples found in repository

examples/showcase/app.rs (line 247)

    fn theme(&self) -> Theme {
        self.theme_controller.theme("Material 3 animated")
    }

pub const fn picker_state(&self) -> &State

pub const fn is_picker_open(&self) -> bool

pub const fn selected_color(&self) -> MaterialColor

pub const fn dark_mode(&self) -> bool

pub const fn visible_scheme(&self) -> ColorScheme

pub const fn transition(&self) -> Option<ThemeRevealTransition>

pub const fn is_animating(&self) -> bool

Examples found in repository

examples/showcase/app.rs (line 578)

fn subscription(state: &Showcase) -> Subscription<Message> {
    let mut subscriptions =
        vec![iced::window::resize_events().map(|(_id, size)| Message::WindowResized(size))];

    if state.theme_controller.is_animating()
        || state.navigation.is_animating()
        || state.segment_state.is_animating()
        || state.primary_tab_state.is_animating()
        || state.secondary_tab_state.is_animating()
        || state.log_viewer.is_animating()
        || state.alert_dialog.is_animating()
        || state.snackbar.is_active()
        || state.date_picker.is_animating()
        || state.date_range_picker.is_animating()
        || state.time_picker.is_animating()
        || (state.navigation.selected() == ShowcasePage::Feedback
            && state.progress_animation.is_animating())
    {
        subscriptions.push(iced::window::frames().map(Message::Frame));
    }

    Subscription::batch(subscriptions)
}

pub fn update( &mut self, action: ThemeAction, viewport: Size, bottom_margin: f32, now: Instant, )

Examples found in repository

examples/showcase/app.rs (lines 382-387)

fn update(state: &mut Showcase, message: Message) -> Task<Message> {
    match message {
        #[cfg(any(target_arch = "wasm32", test))]
        Message::CjkCoreFontFinished => load_cjk_regional_font(),
        #[cfg(any(target_arch = "wasm32", test))]
        Message::CjkRegionalFontFinished => Task::none(),
        Message::Navigate(page) => {
            state
                .navigation
                .select(page, Instant::now(), state.adaptive_navigation_layout());
            Task::none()
        }
        Message::Increment => {
            state.count += 1;
            Task::none()
        }
        Message::Decrement => {
            state.count -= 1;
            Task::none()
        }
        Message::TextChanged(note) => {
            state.note = note;
            Task::none()
        }
        Message::EditorAction(action) => {
            state.editor_content.perform(action);
            Task::none()
        }
        Message::SelectChanged(choice) => {
            state.select_choice = Some(choice);
            Task::none()
        }
        Message::ComboboxSelected(choice) => {
            state.combobox_choice = Some(choice);
            state.combobox_input.clear();
            state.combobox_options.set_selection(Some(&choice));
            Task::none()
        }
        Message::ComboboxInputChanged(input) => {
            state.combobox_options.set_input(input.clone());
            state.combobox_input = input;
            state.combobox_choice = None;
            Task::none()
        }
        Message::SearchChanged(query) => {
            state.search_query = query;
            Task::none()
        }
        Message::DatePickerChanged(action) => state.date_picker.update_and_scroll(action),
        Message::DateRangePickerChanged(action) => {
            state.date_range_picker.update_and_scroll(action)
        }
        Message::TimePickerChanged(action) => {
            state.time_picker.update(action);
            Task::none()
        }
        Message::SliderChanged(progress) => {
            state.progress = progress;
            Task::none()
        }
        Message::EnabledChanged(enabled) => {
            state.enabled = enabled;
            Task::none()
        }
        Message::ChoiceSelected(choice) => {
            state.radio_choice = Some(choice);
            Task::none()
        }
        Message::SegmentSelected(choice) => {
            state.segment_choice = choice;
            state.segment_state.select(choice.index(), Instant::now());
            Task::none()
        }
        Message::PrimaryTabSelected(choice) => {
            state.primary_tab = choice;
            state.primary_tab_state.select(
                choice.index(),
                Instant::now(),
                material::widget::tabs::Variant::Primary,
            );
            Task::none()
        }
        Message::SecondaryTabSelected(choice) => {
            state.secondary_tab = choice;
            state.secondary_tab_state.select(
                choice.index(),
                Instant::now(),
                material::widget::tabs::Variant::Secondary,
            );
            Task::none()
        }
        Message::LogViewer(action) => state.log_viewer.update(action, &state.log_entries),
        Message::MenuPressed => {
            state.navigation.toggle_menu_now_for_size(state.window_size);
            Task::none()
        }
        Message::DialogOpened => {
            state.alert_dialog.show(Instant::now());
            Task::none()
        }
        Message::DialogDismissed => {
            state.alert_dialog.dismiss(Instant::now());
            Task::none()
        }
        Message::DialogConfirmed => {
            state.alert_dialog.dismiss(Instant::now());
            state.count += 1;
            Task::none()
        }
        Message::ShowSnackbar => {
            state.snackbar.show(Instant::now());
            Task::none()
        }
        Message::SnackbarUndo => {
            state.count -= 1;
            state.snackbar.dismiss(Instant::now());
            Task::none()
        }
        Message::WindowResized(size) => {
            state.window_size = size;
            Task::none()
        }
        Message::ThemeChanged(action) => {
            state.theme_controller.update(
                action,
                state.window_size,
                theme_picker::bottom_margin(state.adaptive_navigation_layout()),
                Instant::now(),
            );
            Task::none()
        }
        Message::Frame(now) => {
            let _ = state.theme_controller.advance(now);
            let _ = state.navigation.advance(now);
            let _ = state.segment_state.advance(now);
            let _ = state.primary_tab_state.advance(now);
            let _ = state.secondary_tab_state.advance(now);
            let _ = state.log_viewer.advance(now);
            state.progress_animation.advance(now);
            let _ = state.alert_dialog.advance(now);
            let _ = state.snackbar.advance(now);
            let _ = state.date_picker.advance(now);
            let _ = state.date_range_picker.advance(now);
            let _ = state.time_picker.advance(now);
            Task::none()
        }
    }
}

pub fn advance(&mut self, now: Instant) -> bool

Examples found in repository

examples/showcase/app.rs (line 391)

fn update(state: &mut Showcase, message: Message) -> Task<Message> {
    match message {
        #[cfg(any(target_arch = "wasm32", test))]
        Message::CjkCoreFontFinished => load_cjk_regional_font(),
        #[cfg(any(target_arch = "wasm32", test))]
        Message::CjkRegionalFontFinished => Task::none(),
        Message::Navigate(page) => {
            state
                .navigation
                .select(page, Instant::now(), state.adaptive_navigation_layout());
            Task::none()
        }
        Message::Increment => {
            state.count += 1;
            Task::none()
        }
        Message::Decrement => {
            state.count -= 1;
            Task::none()
        }
        Message::TextChanged(note) => {
            state.note = note;
            Task::none()
        }
        Message::EditorAction(action) => {
            state.editor_content.perform(action);
            Task::none()
        }
        Message::SelectChanged(choice) => {
            state.select_choice = Some(choice);
            Task::none()
        }
        Message::ComboboxSelected(choice) => {
            state.combobox_choice = Some(choice);
            state.combobox_input.clear();
            state.combobox_options.set_selection(Some(&choice));
            Task::none()
        }
        Message::ComboboxInputChanged(input) => {
            state.combobox_options.set_input(input.clone());
            state.combobox_input = input;
            state.combobox_choice = None;
            Task::none()
        }
        Message::SearchChanged(query) => {
            state.search_query = query;
            Task::none()
        }
        Message::DatePickerChanged(action) => state.date_picker.update_and_scroll(action),
        Message::DateRangePickerChanged(action) => {
            state.date_range_picker.update_and_scroll(action)
        }
        Message::TimePickerChanged(action) => {
            state.time_picker.update(action);
            Task::none()
        }
        Message::SliderChanged(progress) => {
            state.progress = progress;
            Task::none()
        }
        Message::EnabledChanged(enabled) => {
            state.enabled = enabled;
            Task::none()
        }
        Message::ChoiceSelected(choice) => {
            state.radio_choice = Some(choice);
            Task::none()
        }
        Message::SegmentSelected(choice) => {
            state.segment_choice = choice;
            state.segment_state.select(choice.index(), Instant::now());
            Task::none()
        }
        Message::PrimaryTabSelected(choice) => {
            state.primary_tab = choice;
            state.primary_tab_state.select(
                choice.index(),
                Instant::now(),
                material::widget::tabs::Variant::Primary,
            );
            Task::none()
        }
        Message::SecondaryTabSelected(choice) => {
            state.secondary_tab = choice;
            state.secondary_tab_state.select(
                choice.index(),
                Instant::now(),
                material::widget::tabs::Variant::Secondary,
            );
            Task::none()
        }
        Message::LogViewer(action) => state.log_viewer.update(action, &state.log_entries),
        Message::MenuPressed => {
            state.navigation.toggle_menu_now_for_size(state.window_size);
            Task::none()
        }
        Message::DialogOpened => {
            state.alert_dialog.show(Instant::now());
            Task::none()
        }
        Message::DialogDismissed => {
            state.alert_dialog.dismiss(Instant::now());
            Task::none()
        }
        Message::DialogConfirmed => {
            state.alert_dialog.dismiss(Instant::now());
            state.count += 1;
            Task::none()
        }
        Message::ShowSnackbar => {
            state.snackbar.show(Instant::now());
            Task::none()
        }
        Message::SnackbarUndo => {
            state.count -= 1;
            state.snackbar.dismiss(Instant::now());
            Task::none()
        }
        Message::WindowResized(size) => {
            state.window_size = size;
            Task::none()
        }
        Message::ThemeChanged(action) => {
            state.theme_controller.update(
                action,
                state.window_size,
                theme_picker::bottom_margin(state.adaptive_navigation_layout()),
                Instant::now(),
            );
            Task::none()
        }
        Message::Frame(now) => {
            let _ = state.theme_controller.advance(now);
            let _ = state.navigation.advance(now);
            let _ = state.segment_state.advance(now);
            let _ = state.primary_tab_state.advance(now);
            let _ = state.secondary_tab_state.advance(now);
            let _ = state.log_viewer.advance(now);
            state.progress_animation.advance(now);
            let _ = state.alert_dialog.advance(now);
            let _ = state.snackbar.advance(now);
            let _ = state.date_picker.advance(now);
            let _ = state.date_range_picker.advance(now);
            let _ = state.time_picker.advance(now);
            Task::none()
        }
    }
}

pub fn dark_mode_switch<'a, Message, Renderer>( &self, label: impl IntoFragment<'a>, on_action: impl Fn(ThemeAction) -> Message + 'a, ) -> Element<'a, Message, Theme, Renderer>

where Message: 'a, Renderer: Renderer + Renderer + Renderer + 'a,

Examples found in repository

examples/showcase/pages/controls.rs (line 121)

fn selection_controls(state: &Showcase) -> material::Element<'_, Message> {
    let switches = page::component_stack([
        material::widget::checkbox::standard(
            state.enabled,
            "Enable actions",
            Message::EnabledChanged,
        ),
        state
            .theme_controller
            .dark_mode_switch("Dark theme", Message::ThemeChanged),
    ]);

    let radios = page::row([
        material::widget::radio::standard(
            "Standard",
            RadioChoice::Standard,
            state.radio_choice,
            Message::ChoiceSelected,
        ),
        material::widget::radio::standard(
            "Expressive",
            RadioChoice::Expressive,
            state.radio_choice,
            Message::ChoiceSelected,
        ),
        material::widget::radio::standard(
            "Dense",
            RadioChoice::Dense,
            state.radio_choice,
            Message::ChoiceSelected,
        ),
    ]);

    page::spacious_stack([switches.into(), radios.into()]).into()
}

pub fn controls_over<'a, Message, Renderer>( &self, content: impl Into<Element<'a, Message, Theme, Renderer>>, bottom_margin: f32, on_action: impl Fn(ThemeAction) -> Message + 'a, ) -> Element<'a, Message, Theme, Renderer>

where Message: Clone + 'a, Renderer: Renderer + Renderer + Renderer + Renderer + 'a, Font: Into<Renderer::Font>,

Examples found in repository

examples/showcase/app.rs (lines 616-620)

fn view(state: &Showcase) -> material::Element<'_, Message> {
    let now = Instant::now();
    let page_content = material::widget::snackbar::host(
        pages::view(state),
        &state.snackbar,
        now,
        "Photo archived",
        "Undo",
        Message::SnackbarUndo,
    );

    let navigation_suite = navigation::suite(&NAV_DESTINATIONS, &state.navigation)
        .layout(state.adaptive_navigation_layout())
        .with_menu("Showcase", Message::MenuPressed);
    #[cfg(target_os = "android")]
    let navigation_suite =
        navigation_suite.compact_navigation(navigation::CompactNavigation::ModalDrawer);
    let content = navigation_suite.view(Message::Navigate, page_content);
    let content = state.theme_controller.controls_over(
        content,
        theme_picker::bottom_margin(state.adaptive_navigation_layout()),
        Message::ThemeChanged,
    );

    let content = material::widget::dialog::modal_animated(
        content,
        &state.alert_dialog,
        now,
        alert_dialog(state.alert_dialog.alpha(now)),
    );

    state.theme_controller.reveal_over(content, now)
}

pub fn reveal_over<'a, Message, Renderer>( &self, content: impl Into<Element<'a, Message, Theme, Renderer>>, now: Instant, ) -> Element<'a, Message, Theme, Renderer>

where Message: 'a, Renderer: Renderer + Renderer + 'a,

Examples found in repository

examples/showcase/app.rs (line 629)

fn view(state: &Showcase) -> material::Element<'_, Message> {
    let now = Instant::now();
    let page_content = material::widget::snackbar::host(
        pages::view(state),
        &state.snackbar,
        now,
        "Photo archived",
        "Undo",
        Message::SnackbarUndo,
    );

    let navigation_suite = navigation::suite(&NAV_DESTINATIONS, &state.navigation)
        .layout(state.adaptive_navigation_layout())
        .with_menu("Showcase", Message::MenuPressed);
    #[cfg(target_os = "android")]
    let navigation_suite =
        navigation_suite.compact_navigation(navigation::CompactNavigation::ModalDrawer);
    let content = navigation_suite.view(Message::Navigate, page_content);
    let content = state.theme_controller.controls_over(
        content,
        theme_picker::bottom_margin(state.adaptive_navigation_layout()),
        Message::ThemeChanged,
    );

    let content = material::widget::dialog::modal_animated(
        content,
        &state.alert_dialog,
        now,
        alert_dialog(state.alert_dialog.alpha(now)),
    );

    state.theme_controller.reveal_over(content, now)
}

Trait Implementations

impl Clone for ThemeController

fn clone(&self) -> ThemeController

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ThemeController

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ThemeController

fn default() -> Self

Returns the “default value” for a type.