Default + Cancel widgets

examples/login.rs

@@ -0,0 +1,70 @@
+use std::process::exit;
+
+use gooey::value::Dynamic;
+use gooey::widget::MakeWidget;
+use gooey::widgets::{Align, Button, Expand, Input, Label, Resize, Stack};
+use gooey::{children, Run, WithClone};
+use kludgine::figures::units::Lp;
+
+fn main() -> gooey::Result {
+    let username = Dynamic::default();
+    let password = Dynamic::default();
+
+    // TODO This is absolutely horrible. The problem is that within for_each,
+    // the value is still locked. Thus, we can't have a generic callback that
+    // tries to lock the value that is being mapped in for_each.
+    //
+    // We might be able to make a genericized implementation for_each for
+    // tuples, ie, (&Dynamic, &Dynamic).for_each(|(a, b)| ..).
+    let valid = Dynamic::default();
+    username.for_each((&valid, &password).with_clone(|(valid, password)| {
+        move |username: &String| {
+            password.map_ref(|password| valid.update(validate(username, password)))
+        }
+    }));
+    password.for_each((&valid, &username).with_clone(|(valid, username)| {
+        move |password: &String| {
+            username.map_ref(|username| valid.update(validate(username, password)))
+        }
+    }));
+
+    Expand::new(Align::centered(Resize::width(
+        // TODO We need a min/max range for the Resize widget
+        Lp::points(400),
+        Stack::rows(children![
+            Stack::columns(children![
+                Label::new("Username"),
+                Expand::new(Align::centered(Input::new(username.clone())).fit_horizontally()),
+            ]),
+            Stack::columns(children![
+                Label::new("Password"),
+                Expand::new(
+                    Align::centered(
+                        // TODO secure input
+                        Input::new(password.clone())
+                    )
+                    .fit_horizontally()
+                ),
+            ]),
+            Stack::columns(children![
+                Button::new("Cancel").on_click(|_| exit(0)).into_escape(),
+                Expand::empty(),
+                Button::new("Log In")
+                    .on_click(move |_| {
+                        if valid.get() {
+                            println!("Welcome, {}", username.get());
+                            exit(0);
+                        } else {
+                            eprintln!("Enter a username and password")
+                        }
+                    })
+                    .into_default(), // TODO enable/disable based on valid
+            ]),
+        ]),
+    )))
+    .run()
+}
+
+fn validate(username: &String, password: &String) -> bool {
+    !username.is_empty() && !password.is_empty()
+}

src/context.rs

@@ -805,6 +805,28 @@ impl<'context, 'window> WidgetContext<'context, 'window> {
         self.pending_state.focus.as_ref() == Some(&self.current_node)
     }
 
+    /// Returns true if this widget is the target to activate when the user
+    /// triggers a default action.
+    ///
+    /// See
+    /// [`MakeWidget::into_default()`](crate::widget::MakeWidget::into_default)
+    /// for more information.
+    #[must_use]
+    pub fn is_default(&self) -> bool {
+        self.current_node.tree.default_widget() == Some(self.current_node.id())
+    }
+
+    /// Returns true if this widget is the target to activate when the user
+    /// triggers an escape action.
+    ///
+    /// See
+    /// [`MakeWidget::into_escape()`](crate::widget::MakeWidget::into_escape)
+    /// for more information.
+    #[must_use]
+    pub fn is_escape(&self) -> bool {
+        self.current_node.tree.escape_widget() == Some(self.current_node.id())
+    }
+
     /// Returns the widget this context is for.
     #[must_use]
     pub const fn widget(&self) -> &ManagedWidget {

src/styles/components.rs

@@ -63,6 +63,24 @@ impl ComponentDefinition for TextColor {
     }
 }
 
+/// A [`Color`] to be used as a highlight color.
+#[derive(Clone, Copy, Eq, PartialEq, Debug)]
+pub struct PrimaryColor;
+
+impl NamedComponent for PrimaryColor {
+    fn name(&self) -> Cow<'_, ComponentName> {
+        Cow::Owned(ComponentName::named::<Global>("primary_color"))
+    }
+}
+
+impl ComponentDefinition for PrimaryColor {
+    type ComponentType = Color;
+
+    fn default_value(&self) -> Color {
+        Color::BLUE
+    }
+}
+
 /// A [`Color`] to be used as a highlight color.
 #[derive(Clone, Copy, Eq, PartialEq, Debug)]
 pub struct HighlightColor;

src/tree.rs

@@ -32,6 +32,12 @@ impl Tree {
                 styles: None,
             },
         );
+        if widget.is_default() {
+            data.defaults.push(id);
+        }
+        if widget.is_escape() {
+            data.escapes.push(id);
+        }
         if let Some(parent) = parent {
             let parent = data.nodes.get_mut(&parent.id()).expect("missing parent");
             parent.children.push(id);
@@ -48,6 +54,13 @@ impl Tree {
     pub fn remove_child(&self, child: &ManagedWidget, parent: &ManagedWidget) {
         let mut data = self.data.lock().map_or_else(PoisonError::into_inner, |g| g);
         data.remove_child(child.id(), parent.id());
+
+        if child.widget.is_default() {
+            data.defaults.retain(|id| *id != child.id());
+        }
+        if child.widget.is_escape() {
+            data.escapes.retain(|id| *id != child.id());
+        }
     }
 
     pub(crate) fn set_layout(&self, widget: WidgetId, rect: Rect<Px>) {
@@ -204,6 +217,24 @@ impl Tree {
             .hover
     }
 
+    pub fn default_widget(&self) -> Option<WidgetId> {
+        self.data
+            .lock()
+            .map_or_else(PoisonError::into_inner, |g| g)
+            .defaults
+            .last()
+            .copied()
+    }
+
+    pub fn escape_widget(&self) -> Option<WidgetId> {
+        self.data
+            .lock()
+            .map_or_else(PoisonError::into_inner, |g| g)
+            .escapes
+            .last()
+            .copied()
+    }
+
     pub fn is_hovered(&self, id: WidgetId) -> bool {
         let data = self.data.lock().map_or_else(PoisonError::into_inner, |g| g);
         let mut search = data.hover;
@@ -284,6 +315,8 @@ struct TreeData {
     active: Option<WidgetId>,
     focus: Option<WidgetId>,
     hover: Option<WidgetId>,
+    defaults: Vec<WidgetId>,
+    escapes: Vec<WidgetId>,
     render_order: Vec<WidgetId>,
     previous_focuses: HashMap<WidgetId, WidgetId>,
 }

src/widget.rs

@@ -194,6 +194,34 @@ pub trait MakeWidget: Sized {
     fn with_next_focus(self, next_focus: impl IntoValue<Option<WidgetId>>) -> WidgetInstance {
         self.make_widget().with_next_focus(next_focus)
     }
+
+    /// Sets this widget as a "default" widget.
+    ///
+    /// Default widgets are automatically activated when the user signals they
+    /// are ready for the default action to occur.
+    ///
+    /// Example widgets this is used for are:
+    ///
+    /// - Submit buttons on forms
+    /// - Ok buttons
+    #[must_use]
+    fn into_default(self) -> WidgetInstance {
+        self.make_widget().into_default()
+    }
+
+    /// Sets this widget as an "escape" widget.
+    ///
+    /// Escape widgets are automatically activated when the user signals they
+    /// are ready to escape their current situation.
+    ///
+    /// Example widgets this is used for are:
+    ///
+    /// - Close buttons
+    /// - Cancel buttons
+    #[must_use]
+    fn into_escape(self) -> WidgetInstance {
+        self.make_widget().into_escape()
+    }
 }
 
 /// A type that can create a [`WidgetInstance`] with a preallocated
@@ -265,9 +293,16 @@ where
 /// An instance of a [`Widget`].
 #[derive(Clone, Debug)]
 pub struct WidgetInstance {
+    data: Arc<WidgetInstanceData>,
+}
+
+#[derive(Debug)]
+struct WidgetInstanceData {
     id: WidgetId,
-    widget: Arc<Mutex<dyn AnyWidget>>,
+    default: bool,
+    cancel: bool,
     next_focus: Value<Option<WidgetId>>,
+    widget: Box<Mutex<dyn AnyWidget>>,
 }
 
 impl WidgetInstance {
@@ -278,9 +313,13 @@ impl WidgetInstance {
         W: Widget,
     {
         Self {
-            id: id.into(),
-            widget: Arc::new(Mutex::new(widget)),
-            next_focus: Value::default(),
+            data: Arc::new(WidgetInstanceData {
+                id: id.into(),
+                next_focus: Value::default(),
+                default: false,
+                cancel: false,
+                widget: Box::new(Mutex::new(widget)),
+            }),
         }
     }
 
@@ -295,19 +334,70 @@ impl WidgetInstance {
     /// Returns the unique id of this widget instance.
     #[must_use]
     pub fn id(&self) -> WidgetId {
-        self.id
+        self.data.id
     }
 
     /// Sets the widget that should be focused next.
     ///
     /// Gooey automatically determines reverse tab order by using this same
     /// relationship.
+    ///
+    /// # Panics
+    ///
+    /// This function can only be called when one instance of the widget exists.
+    /// If any clones exist, a panic will occur.
     #[must_use]
     pub fn with_next_focus(
         mut self,
         next_focus: impl IntoValue<Option<WidgetId>>,
     ) -> WidgetInstance {
-        self.next_focus = next_focus.into_value();
+        let data = Arc::get_mut(&mut self.data)
+            .expect("with_next_focus can only be called on newly created widget instances");
+        data.next_focus = next_focus.into_value();
+        self
+    }
+
+    /// Sets this widget as a "default" widget.
+    ///
+    /// Default widgets are automatically activated when the user signals they
+    /// are ready for the default action to occur.
+    ///
+    /// Example widgets this is used for are:
+    ///
+    /// - Submit buttons on forms
+    /// - Ok buttons
+    ///
+    /// # Panics
+    ///
+    /// This function can only be called when one instance of the widget exists.
+    /// If any clones exist, a panic will occur.
+    #[must_use]
+    pub fn into_default(mut self) -> WidgetInstance {
+        let data = Arc::get_mut(&mut self.data)
+            .expect("with_next_focus can only be called on newly created widget instances");
+        data.default = true;
+        self
+    }
+
+    /// Sets this widget as an "escape" widget.
+    ///
+    /// Escape widgets are automatically activated when the user signals they
+    /// are ready to escape their current situation.
+    ///
+    /// Example widgets this is used for are:
+    ///
+    /// - Close buttons
+    /// - Cancel buttons
+    ///
+    /// # Panics
+    ///
+    /// This function can only be called when one instance of the widget exists.
+    /// If any clones exist, a panic will occur.
+    #[must_use]
+    pub fn into_escape(mut self) -> WidgetInstance {
+        let data = Arc::get_mut(&mut self.data)
+            .expect("with_next_focus can only be called on newly created widget instances");
+        data.cancel = true;
         self
     }
 
@@ -316,7 +406,8 @@ impl WidgetInstance {
     /// occur due to other widget locks being held.
     pub fn lock(&self) -> WidgetGuard<'_> {
         WidgetGuard(
-            self.widget
+            self.data
+                .widget
                 .lock()
                 .map_or_else(PoisonError::into_inner, |g| g),
         )
@@ -333,12 +424,29 @@ impl WidgetInstance {
     /// This value comes from [`MakeWidget::with_next_focus()`].
     #[must_use]
     pub fn next_focus(&self) -> Option<WidgetId> {
-        self.next_focus.get()
+        self.data.next_focus.get()
+    }
+
+    /// Returns true if this is a default widget.
+    ///
+    /// See [`MakeWidget::into_default()`] for more information.
+    #[must_use]
+    pub fn is_default(&self) -> bool {
+        self.data.default
+    }
+
+    /// Returns true if this is an escape widget.
+    ///
+    /// See [`MakeWidget::into_escape()`] for more information.
+    #[must_use]
+    pub fn is_escape(&self) -> bool {
+        self.data.cancel
     }
 }
+
 impl AsRef<WidgetId> for WidgetInstance {
     fn as_ref(&self) -> &WidgetId {
-        &self.id
+        &self.data.id
     }
 }
 
@@ -346,7 +454,7 @@ impl Eq for WidgetInstance {}
 
 impl PartialEq for WidgetInstance {
     fn eq(&self, other: &Self) -> bool {
-        Arc::ptr_eq(&self.widget, &other.widget)
+        Arc::ptr_eq(&self.data, &other.data)
     }
 }
 
@@ -435,7 +543,7 @@ impl ManagedWidget {
     /// Returns the unique id of this widget instance.
     #[must_use]
     pub fn id(&self) -> WidgetId {
-        self.widget.id
+        self.widget.id()
     }
 
     /// Returns the next widget to focus after this widget.

src/widgets/align.rs

@@ -4,7 +4,7 @@ use kludgine::figures::units::UPx;
 use kludgine::figures::{Fraction, IntoSigned, IntoUnsigned, Point, Rect, ScreenScale, Size};
 
 use crate::context::{AsEventContext, GraphicsContext, LayoutContext};
-use crate::styles::{Edges, FlexibleDimension};
+use crate::styles::{Dimension, Edges, FlexibleDimension};
 use crate::value::{IntoValue, Value};
 use crate::widget::{MakeWidget, Widget, WidgetRef};
 use crate::ConstraintLimit;
@@ -32,6 +32,26 @@ impl Align {
         Self::new(FlexibleDimension::Auto, widget)
     }
 
+    /// Sets the left and right edges to 0 and returns self.
+    #[must_use]
+    pub fn fit_horizontally(mut self) -> Self {
+        self.edges.map_mut(|edges| {
+            edges.left = FlexibleDimension::Dimension(Dimension::default());
+            edges.right = FlexibleDimension::Dimension(Dimension::default());
+        });
+        self
+    }
+
+    /// Sets the top and bottom edges to 0 and returns self.
+    #[must_use]
+    pub fn fit_vertically(mut self) -> Self {
+        self.edges.map_mut(|edges| {
+            edges.top = FlexibleDimension::Dimension(Dimension::default());
+            edges.bottom = FlexibleDimension::Dimension(Dimension::default());
+        });
+        self
+    }
+
     fn measure(
         &mut self,
         available_space: Size<ConstraintLimit>,
@@ -102,7 +122,7 @@ impl FrameInfo {
     fn measure(&self, available: ConstraintLimit, content: UPx) -> (UPx, UPx, UPx) {
         match available {
             ConstraintLimit::Known(size) => {
-                let remaining = size - content;
+                let remaining = size.saturating_sub(content);
                 let (a, b) = match (self.a, self.b) {
                     (Some(a), Some(b)) => (a, b),
                     (Some(a), None) => (a, remaining - a),

src/widgets/button.rs

@@ -4,7 +4,6 @@ use std::panic::UnwindSafe;
 use std::time::Duration;
 
 use kludgine::app::winit::event::{DeviceId, ElementState, KeyEvent, MouseButton};
-use kludgine::app::winit::keyboard::KeyCode;
 use kludgine::figures::units::{Px, UPx};
 use kludgine::figures::{IntoUnsigned, Point, Rect, ScreenScale, Size};
 use kludgine::shapes::Shape;
@@ -14,8 +13,11 @@ use kludgine::Color;
 use crate::animation::{AnimationHandle, AnimationTarget, Spawn};
 use crate::context::{EventContext, GraphicsContext, LayoutContext, WidgetContext};
 use crate::names::Name;
-use crate::styles::components::{Easing, HighlightColor, IntrinsicPadding, TextColor};
+use crate::styles::components::{
+    Easing, HighlightColor, IntrinsicPadding, PrimaryColor, TextColor,
+};
 use crate::styles::{ComponentDefinition, ComponentGroup, ComponentName, NamedComponent};
+use crate::utils::ModifiersExt;
 use crate::value::{Dynamic, IntoValue, Value};
 use crate::widget::{Callback, EventHandling, Widget, HANDLED, IGNORED};
 
@@ -66,12 +68,15 @@ impl Button {
             &ButtonActiveBackground,
             &ButtonBackground,
             &ButtonHoverBackground,
+            &PrimaryColor,
             &Easing,
         ]);
         let background_color = if context.active() {
             styles.get_or_default(&ButtonActiveBackground)
         } else if context.hovered() {
             styles.get_or_default(&ButtonHoverBackground)
+        } else if context.is_default() {
+            styles.get_or_default(&PrimaryColor)
         } else {
             styles.get_or_default(&ButtonBackground)
         };
@@ -237,13 +242,18 @@ impl Widget for Button {
         _is_synthetic: bool,
         context: &mut EventContext<'_, '_>,
     ) -> EventHandling {
-        if input.physical_key == KeyCode::Space {
+        // TODO should this be handled at the window level?
+        if input.text.as_deref() == Some(" ") && !context.modifiers().possible_shortcut() {
             let changed = match input.state {
-                ElementState::Pressed => context.activate(),
-                ElementState::Released => {
-                    self.invoke_on_click();
-                    context.deactivate()
+                ElementState::Pressed => {
+                    let changed = context.activate();
+                    if !changed {
+                        // The widget was already active. This is now a repeated keypress
+                        self.invoke_on_click();
+                    }
+                    changed
                 }
+                ElementState::Released => context.deactivate(),
             };
             if changed {
                 context.set_needs_redraw();
@@ -271,6 +281,11 @@ impl Widget for Button {
     }
 
     fn activate(&mut self, context: &mut EventContext<'_, '_>) {
+        // If we have no buttons pressed, the event should fire on activate not
+        // on deactivate.
+        if self.buttons_pressed == 0 {
+            self.invoke_on_click();
+        }
         self.update_background_color(context, true);
     }
 

src/widgets/expand.rs

@@ -14,7 +14,13 @@ pub struct Expand {
     /// The weight to use when splitting available space with multiple
     /// [`Expand`] widgets.
     pub weight: u8,
-    child: WidgetRef,
+    child: Option<WidgetRef>,
+}
+
+impl Default for Expand {
+    fn default() -> Self {
+        Self::empty()
+    }
 }
 
 impl Expand {
@@ -22,7 +28,16 @@ impl Expand {
     #[must_use]
     pub fn new(child: impl MakeWidget) -> Self {
         Self {
-            child: WidgetRef::new(child),
+            child: Some(WidgetRef::new(child)),
+            weight: 1,
+        }
+    }
+
+    /// Returns a widget that expands to fill its parent, but has no contents.
+    #[must_use]
+    pub fn empty() -> Self {
+        Self {
+            child: None,
             weight: 1,
         }
     }
@@ -34,21 +49,22 @@ impl Expand {
     #[must_use]
     pub fn weighted(weight: u8, child: impl MakeWidget) -> Self {
         Self {
-            child: WidgetRef::new(child),
+            child: Some(WidgetRef::new(child)),
             weight,
         }
     }
 
     /// Returns a reference to the child widget.
     #[must_use]
-    pub fn child(&self) -> &WidgetRef {
-        &self.child
+    pub fn child(&self) -> Option<&WidgetRef> {
+        self.child.as_ref()
     }
 }
 
 impl Widget for Expand {
     fn redraw(&mut self, context: &mut GraphicsContext<'_, '_, '_, '_, '_>) {
-        let child = self.child.mounted(&mut context.as_event_context());
+        let Some(child) = &mut self.child else { return };
+        let child = child.mounted(&mut context.as_event_context());
         context.for_other(&child).redraw();
     }
 
@@ -61,8 +77,15 @@ impl Widget for Expand {
             ConstraintLimit::Known(available_space.width.max()),
             ConstraintLimit::Known(available_space.height.max()),
         );
-        let child = self.child.mounted(&mut context.as_event_context());
-        let size = context.for_other(&child).layout(available_space);
+        let child = self
+            .child
+            .as_mut()
+            .map(|child| child.mounted(&mut context.as_event_context()));
+        let size = if let Some(child) = &child {
+            context.for_other(child).layout(available_space)
+        } else {
+            Size::default()
+        };
 
         let expanded_size = Size::new(
             available_space
@@ -72,7 +95,11 @@ impl Widget for Expand {
                 .height
                 .fit_measured(size.height, context.graphics.scale()),
         );
-        context.set_child_layout(&child, Rect::from(expanded_size.into_signed()));
+
+        if let Some(child) = child {
+            context.set_child_layout(&child, Rect::from(expanded_size.into_signed()));
+        }
+
         expanded_size
     }
 }

src/widgets/input.rs

@@ -100,6 +100,12 @@ impl Input {
     }
 }
 
+impl Default for Input {
+    fn default() -> Self {
+        Self::new(String::new())
+    }
+}
+
 impl Debug for Input {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         f.debug_struct("Input")
@@ -393,8 +399,14 @@ impl Widget for Input {
                 );
                 (false, HANDLED)
             }
-            (_, Some(text)) if !context.modifiers().state().primary() && text != "\t" => {
-                editor.insert_string(&text, None);
+            (_, Some(text))
+                if !context.modifiers().primary()
+                    && text != "\t" // tab
+                    && text != "\r" // enter/return
+                    && text != "\u{1b}" // escape
+                    =>
+            {
+                editor.insert_string(dbg!(&text), None);
                 (true, HANDLED)
             }
             (_, _) => (false, IGNORED),
@@ -438,10 +450,12 @@ impl Widget for Input {
 
     fn focus(&mut self, context: &mut EventContext<'_, '_>) {
         context.set_ime_allowed(true);
+        context.set_needs_redraw();
     }
 
     fn blur(&mut self, context: &mut EventContext<'_, '_>) {
         context.set_ime_allowed(false);
+        context.set_needs_redraw();
     }
 }
 

src/widgets/stack.rs

@@ -11,7 +11,7 @@ use crate::context::{AsEventContext, EventContext, GraphicsContext, LayoutContex
 use crate::styles::Dimension;
 use crate::value::{Generation, IntoValue, Value};
 use crate::widget::{Children, ManagedWidget, Widget, WidgetRef};
-use crate::widgets::{Expand, Resize};
+use crate::widgets::{Expand, Label, Resize};
 use crate::ConstraintLimit;
 
 /// A widget that displays a collection of [`Widgets`] in a
@@ -87,12 +87,21 @@ impl Stack {
                             let guard = widget.lock();
                             let (mut widget, dimension) =
                                 if let Some(expand) = guard.downcast_ref::<Expand>() {
-                                    (
-                                        expand.child().clone(),
-                                        StackDimension::Fractional {
-                                            weight: expand.weight,
-                                        },
-                                    )
+                                    if let Some(child) = expand.child() {
+                                        (
+                                            child.clone(),
+                                            StackDimension::Fractional {
+                                                weight: expand.weight,
+                                            },
+                                        )
+                                    } else {
+                                        (
+                                            WidgetRef::new(Label::new("")), // TODO this should be an empty widget.
+                                            StackDimension::Fractional {
+                                                weight: expand.weight,
+                                            },
+                                        )
+                                    }
                                 } else if let Some((child, size)) =
                                     guard.downcast_ref::<Resize>().and_then(|r| {
                                         match self.layout.orientation.orientation {

src/window.rs

@@ -14,7 +14,7 @@ use kludgine::app::winit::dpi::PhysicalPosition;
 use kludgine::app::winit::event::{
     DeviceId, ElementState, Ime, KeyEvent, MouseButton, MouseScrollDelta, TouchPhase,
 };
-use kludgine::app::winit::keyboard::KeyCode;
+use kludgine::app::winit::keyboard::Key;
 use kludgine::app::WindowBehavior as _;
 use kludgine::figures::units::Px;
 use kludgine::figures::{IntoSigned, Point, Rect, Size};
@@ -30,7 +30,9 @@ use crate::styles::components::VisualOrder;
 use crate::tree::Tree;
 use crate::utils::ModifiersExt;
 use crate::value::{Dynamic, IntoDynamic};
-use crate::widget::{EventHandling, ManagedWidget, Widget, WidgetInstance, HANDLED, IGNORED};
+use crate::widget::{
+    EventHandling, ManagedWidget, Widget, WidgetId, WidgetInstance, HANDLED, IGNORED,
+};
 use crate::window::sealed::WindowCommand;
 use crate::{ConstraintLimit, Run};
 
@@ -243,6 +245,7 @@ struct GooeyWindow<T> {
     initial_frame: bool,
     occluded: Dynamic<bool>,
     focused: Dynamic<bool>,
+    keyboard_activated: Option<ManagedWidget>,
 }
 
 impl<T> GooeyWindow<T>
@@ -254,6 +257,38 @@ where
 
         self.should_close
     }
+
+    fn keyboard_activate_widget(
+        &mut self,
+        is_pressed: bool,
+        widget: Option<WidgetId>,
+        window: &mut RunningWindow<'_>,
+        kludgine: &mut Kludgine,
+    ) {
+        if is_pressed {
+            if let Some(default) = widget.and_then(|id| self.root.tree.widget(id)) {
+                if let Some(previously_active) = self.keyboard_activated.take() {
+                    EventContext::new(
+                        WidgetContext::new(previously_active, &self.redraw_status, window),
+                        kludgine,
+                    )
+                    .deactivate();
+                }
+                EventContext::new(
+                    WidgetContext::new(default.clone(), &self.redraw_status, window),
+                    kludgine,
+                )
+                .activate();
+                self.keyboard_activated = Some(default);
+            }
+        } else if let Some(keyboard_activated) = self.keyboard_activated.take() {
+            EventContext::new(
+                WidgetContext::new(keyboard_activated, &self.redraw_status, window),
+                kludgine,
+            )
+            .deactivate();
+        }
+    }
 }
 
 impl<T> kludgine::app::WindowBehavior<WindowCommand> for GooeyWindow<T>
@@ -299,6 +334,7 @@ where
             initial_frame: true,
             occluded,
             focused,
+            keyboard_activated: None,
         }
     }
 
@@ -442,32 +478,50 @@ where
         drop(target);
 
         if !handled {
-            match input.physical_key {
-                KeyCode::KeyW
-                    if window.modifiers().state().primary() && input.state.is_pressed() =>
-                {
-                    if self.request_close(&mut window) {
+            match input.logical_key {
+                Key::Character(ch) if ch == "w" && window.modifiers().primary() => {
+                    if input.state.is_pressed() && self.request_close(&mut window) {
                         window.set_needs_redraw();
                     }
                 }
-                KeyCode::Tab
-                    if !window.modifiers().state().possible_shortcut()
-                        && input.state.is_pressed() =>
-                {
-                    let direction = if window.modifiers().state().shift_key() {
-                        VisualOrder::left_to_right().rev()
-                    } else {
-                        VisualOrder::left_to_right()
-                    };
-                    let target = self.root.tree.focused_widget().unwrap_or(self.root.id());
-                    let target = self.root.tree.widget(target).expect("missing widget");
-                    let mut target = EventContext::new(
-                        WidgetContext::new(target, &self.redraw_status, &mut window),
+                Key::Tab if !window.modifiers().possible_shortcut() => {
+                    if input.state.is_pressed() {
+                        let direction = if window.modifiers().state().shift_key() {
+                            VisualOrder::left_to_right().rev()
+                        } else {
+                            VisualOrder::left_to_right()
+                        };
+                        let target = self.root.tree.focused_widget().unwrap_or(self.root.id());
+                        let target = self.root.tree.widget(target).expect("missing widget");
+                        let mut target = EventContext::new(
+                            WidgetContext::new(target, &self.redraw_status, &mut window),
+                            kludgine,
+                        );
+                        target.advance_focus(direction);
+                    }
+                }
+                Key::Enter => {
+                    self.keyboard_activate_widget(
+                        input.state.is_pressed(),
+                        self.root.tree.default_widget(),
+                        &mut window,
                         kludgine,
                     );
-                    target.advance_focus(direction);
                 }
-                _ => {}
+                Key::Escape => {
+                    self.keyboard_activate_widget(
+                        input.state.is_pressed(),
+                        self.root.tree.escape_widget(),
+                        &mut window,
+                        kludgine,
+                    );
+                }
+                _ => {
+                    println!(
+                        "Ignored Keyboard Input: {:?} ({:?}); {:?}",
+                        input.logical_key, input.physical_key, input.state
+                    );
+                }
             }
         }
     }