ZIm/crates/ui2/src/settings.rs
Antonio Scandurra 3a70f02cbf Checkpoint
2023-10-19 23:21:26 +02:00

149 lines
3.8 KiB
Rust

use std::ops::Deref;
use gpui3::{
rems, AbsoluteLength, AnyElement, BorrowAppContext, Bounds, LayoutId, Pixels, WindowContext,
};
use crate::prelude::*;
/// Returns the user settings.
pub fn user_settings(cx: &WindowContext) -> FakeSettings {
cx.global::<FakeSettings>().clone()
}
pub fn user_settings_mut<'cx>(cx: &'cx mut WindowContext) -> &'cx mut FakeSettings {
cx.global_mut::<FakeSettings>()
}
#[derive(Clone)]
pub enum SettingValue<T> {
UserDefined(T),
Default(T),
}
impl<T> Deref for SettingValue<T> {
type Target = T;
fn deref(&self) -> &Self::Target {
match self {
Self::UserDefined(value) => value,
Self::Default(value) => value,
}
}
}
#[derive(Clone)]
pub struct TitlebarSettings {
pub show_project_owner: SettingValue<bool>,
pub show_git_status: SettingValue<bool>,
pub show_git_controls: SettingValue<bool>,
}
impl Default for TitlebarSettings {
fn default() -> Self {
Self {
show_project_owner: SettingValue::Default(true),
show_git_status: SettingValue::Default(true),
show_git_controls: SettingValue::Default(true),
}
}
}
// These should be merged into settings
#[derive(Clone)]
pub struct FakeSettings {
pub default_panel_size: SettingValue<AbsoluteLength>,
pub list_disclosure_style: SettingValue<DisclosureControlStyle>,
pub list_indent_depth: SettingValue<AbsoluteLength>,
pub titlebar: TitlebarSettings,
pub ui_scale: SettingValue<f32>,
}
impl Default for FakeSettings {
fn default() -> Self {
Self {
titlebar: TitlebarSettings::default(),
list_disclosure_style: SettingValue::Default(DisclosureControlStyle::ChevronOnHover),
list_indent_depth: SettingValue::Default(rems(0.3).into()),
default_panel_size: SettingValue::Default(rems(16.).into()),
ui_scale: SettingValue::Default(1.),
}
}
}
impl FakeSettings {}
pub fn with_settings<E, F>(
settings: FakeSettings,
cx: &mut ViewContext<E::ViewState>,
build_child: F,
) -> WithSettings<E>
where
E: Element,
F: FnOnce(&mut ViewContext<E::ViewState>) -> E,
{
let child = cx.with_global(settings.clone(), |cx| build_child(cx));
WithSettings { settings, child }
}
pub struct WithSettings<E> {
pub(crate) settings: FakeSettings,
pub(crate) child: E,
}
impl<E> IntoAnyElement<E::ViewState> for WithSettings<E>
where
E: Element,
{
fn into_any(self) -> AnyElement<E::ViewState> {
AnyElement::new(self)
}
}
impl<E: Element> Element for WithSettings<E> {
type ViewState = E::ViewState;
type ElementState = E::ElementState;
fn id(&self) -> Option<gpui3::ElementId> {
None
}
fn initialize(
&mut self,
view_state: &mut Self::ViewState,
element_state: Option<Self::ElementState>,
cx: &mut ViewContext<Self::ViewState>,
) -> Self::ElementState {
cx.with_global(self.settings.clone(), |cx| {
self.child.initialize(view_state, element_state, cx)
})
}
fn layout(
&mut self,
view_state: &mut E::ViewState,
element_state: &mut Self::ElementState,
cx: &mut ViewContext<E::ViewState>,
) -> LayoutId
where
Self: Sized,
{
cx.with_global(self.settings.clone(), |cx| {
self.child.layout(view_state, element_state, cx)
})
}
fn paint(
&mut self,
bounds: Bounds<Pixels>,
view_state: &mut Self::ViewState,
frame_state: &mut Self::ElementState,
cx: &mut ViewContext<Self::ViewState>,
) where
Self: Sized,
{
cx.with_global(self.settings.clone(), |cx| {
self.child.paint(bounds, view_state, frame_state, cx);
});
}
}