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use bevy::{prelude::*, window::CursorIcon};
use kayak_font::Alignment;
use kayak_ui_macros::rsx;
use crate::{
context::WidgetName,
event::{EventType, KEvent},
on_event::OnEvent,
prelude::{KChildren, KayakWidgetContext, Units},
styles::{ComputedStyles, Corner, Edge, KCursorIcon, KStyle, RenderCommand, StyleProp},
widget::Widget,
};
use super::{ElementBundle, TextProps, TextWidgetBundle};
#[derive(Component, PartialEq, Clone, Default)]
pub struct KButton {
pub text: String,
}
/// Default button widget
/// Accepts an OnEvent component
#[derive(Bundle)]
pub struct KButtonBundle {
pub button: KButton,
pub styles: KStyle,
pub computed_styles: ComputedStyles,
pub on_event: OnEvent,
pub widget_name: WidgetName,
}
impl Default for KButtonBundle {
fn default() -> Self {
Self {
button: Default::default(),
styles: Default::default(),
computed_styles: Default::default(),
on_event: Default::default(),
widget_name: KButton::default().get_name(),
}
}
}
impl Widget for KButton {}
#[derive(Component, Default, Debug, Clone, PartialEq, Eq)]
pub struct ButtonState {
pub hovering: bool,
}
pub fn button_render(
In(entity): In<Entity>,
widget_context: Res<KayakWidgetContext>,
mut commands: Commands,
mut query: Query<(&KButton, &KStyle, &mut ComputedStyles)>,
state_query: Query<&ButtonState>,
) -> bool {
if let Ok((button, styles, mut computed_styles)) = query.get_mut(entity) {
let hover_color = Color::rgba(0.592, 0.627, 0.749, 1.0); //Color::rgba(0.549, 0.666, 0.933, 1.0);
let font_size = styles.font_size.resolve_or(16.);
let height = styles.height.resolve_or(Units::Pixels(28.));
let state_entity =
widget_context.use_state(&mut commands, entity, ButtonState { hovering: false });
if let Ok(state) = state_query.get(state_entity) {
*computed_styles = KStyle::default()
.with_style(KStyle {
render_command: StyleProp::Value(RenderCommand::Quad),
..Default::default()
})
.with_style(styles)
.with_style(KStyle {
background_color: Color::rgba(0.254, 0.270, 0.349, 1.0).into(),
border_color: if state.hovering {
hover_color.into()
} else {
Color::rgba(0.254, 0.270, 0.349, 1.0).into()
},
border: Edge::all(2.0).into(),
border_radius: StyleProp::Value(Corner::all(10.0)),
font_size: StyleProp::Value(font_size),
height: StyleProp::Value(height),
width: Units::Stretch(1.0).into(),
cursor: StyleProp::Value(KCursorIcon(CursorIcon::Pointer)),
..Default::default()
})
.into();
let on_event = OnEvent::new(
move |In(_entity): In<Entity>,
mut event: ResMut<KEvent>,
mut query: Query<&mut ButtonState>| {
if let Ok(mut button) = query.get_mut(state_entity) {
match event.event_type {
EventType::MouseIn(..) => {
event.stop_propagation();
button.hovering = true;
}
EventType::MouseOut(..) => {
button.hovering = false;
}
_ => {}
}
}
},
);
let parent_id = Some(entity);
rsx! {
<ElementBundle
styles={KStyle {
width: Units::Stretch(1.0).into(),
height: Units::Stretch(1.0).into(),
..Default::default()
}}
on_event={on_event}
>
<TextWidgetBundle
styles={KStyle {
top: Units::Stretch(1.0).into(),
bottom: Units::Stretch(1.0).into(),
left: Units::Stretch(1.0).into(),
right: Units::Stretch(1.0).into(),
font_size: StyleProp::Value(font_size),
..Default::default()
}}
text={TextProps {
alignment: Alignment::Start,
content: button.text.clone(),
..Default::default()
}}
/>
</ElementBundle>
};
}
}
true
}