use gpui::{svg, Action, Hsla};use ui::prelude::*; #[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Clone, Copy)]pub enum WindowControlType {    Minimize,    Restore,    Maximize,    Close,} impl WindowControlType {    /// Returns the icon name for the window control type.    ///    /// Will take a [PlatformStyle] in the future to return a different    /// icon name based on the platform.    pub fn icon(&self) -> IconName {        match self {            WindowControlType::Minimize => IconName::GenericMinimize,            WindowControlType::Restore => IconName::GenericRestore,            WindowControlType::Maximize => IconName::GenericMaximize,            WindowControlType::Close => IconName::GenericClose,        }    }} #[allow(unused)]pub struct WindowControlStyle {    background: Hsla,    background_hover: Hsla,    icon: Hsla,    icon_hover: Hsla,} impl WindowControlStyle {    pub fn default(cx: &WindowContext) -> Self {        let colors = cx.theme().colors();         Self {            background: colors.ghost_element_background,            background_hover: colors.ghost_element_hover,            icon: colors.icon,            icon_hover: colors.icon_muted,        }    }     #[allow(unused)]    /// Sets the background color of the control.    pub fn background(mut self, color: impl Into<Hsla>) -> Self {        self.background = color.into();        self    }     #[allow(unused)]    /// Sets the background color of the control when hovered.    pub fn background_hover(mut self, color: impl Into<Hsla>) -> Self {        self.background_hover = color.into();        self    }     #[allow(unused)]    /// Sets the color of the icon.    pub fn icon(mut self, color: impl Into<Hsla>) -> Self {        self.icon = color.into();        self    }     #[allow(unused)]    /// Sets the color of the icon when hovered.    pub fn icon_hover(mut self, color: impl Into<Hsla>) -> Self {        self.icon_hover = color.into();        self    }} #[derive(IntoElement)]pub struct WindowControl {    id: ElementId,    icon: WindowControlType,    style: WindowControlStyle,    close_action: Option<Box<dyn Action>>,} impl WindowControl {    pub fn new(id: impl Into<ElementId>, icon: WindowControlType, cx: &WindowContext) -> Self {        let style = WindowControlStyle::default(cx);         Self {            id: id.into(),            icon,            style,            close_action: None,        }    }     pub fn new_close(        id: impl Into<ElementId>,        icon: WindowControlType,        close_action: Box<dyn Action>,        cx: &WindowContext,    ) -> Self {        let style = WindowControlStyle::default(cx);         Self {            id: id.into(),            icon,            style,            close_action: Some(close_action.boxed_clone()),        }    }     #[allow(unused)]    pub fn custom_style(        id: impl Into<ElementId>,        icon: WindowControlType,        style: WindowControlStyle,    ) -> Self {        Self {            id: id.into(),            icon,            style,            close_action: None,        }    }} impl RenderOnce for WindowControl {    fn render(self, _cx: &mut WindowContext) -> impl IntoElement {        let icon = svg()            .size_4()            .flex_none()            .path(self.icon.icon().path())            .text_color(self.style.icon)            .group_hover("", |this| this.text_color(self.style.icon_hover));         h_flex()            .id(self.id)            .group("")            .cursor_pointer()            .justify_center()            .content_center()            .rounded_2xl()            .w_5()            .h_5()            .hover(|this| this.bg(self.style.background_hover))            .active(|this| this.bg(self.style.background_hover))            .child(icon)            .on_mouse_move(|_, cx| cx.stop_propagation())            .on_click(move |_, cx| {                cx.stop_propagation();                match self.icon {                    WindowControlType::Minimize => cx.minimize_window(),                    WindowControlType::Restore => cx.zoom_window(),                    WindowControlType::Maximize => cx.zoom_window(),                    WindowControlType::Close => cx.dispatch_action(                        self.close_action                            .as_ref()                            .expect("Use WindowControl::new_close() for close control.")                            .boxed_clone(),                    ),                }            })    }}