ui/utils/
with_rem_size.rs

1use gpui::{
2    AnyElement, App, Bounds, Div, DivFrameState, Element, ElementId, GlobalElementId, Hitbox,
3    InteractiveElement as _, IntoElement, LayoutId, ParentElement, Pixels, StyleRefinement, Styled,
4    Window, div,
5};
6
7/// An element that sets a particular rem size for its children.
8pub struct WithRemSize {
9    div: Div,
10    rem_size: Pixels,
11}
12
13impl WithRemSize {
14    /// Create a new [WithRemSize] element, which sets a
15    /// particular rem size for its children.
16    pub fn new(rem_size: impl Into<Pixels>) -> Self {
17        Self {
18            div: div(),
19            rem_size: rem_size.into(),
20        }
21    }
22
23    /// Block the mouse from interacting with this element or any of its children
24    /// The fluent API equivalent to [`Interactivity::occlude_mouse`]
25    ///
26    /// [`Interactivity::occlude_mouse`]: gpui::Interactivity::occlude_mouse
27    pub fn occlude(mut self) -> Self {
28        self.div = self.div.occlude();
29        self
30    }
31}
32
33impl Styled for WithRemSize {
34    fn style(&mut self) -> &mut StyleRefinement {
35        self.div.style()
36    }
37}
38
39impl ParentElement for WithRemSize {
40    fn extend(&mut self, elements: impl IntoIterator<Item = AnyElement>) {
41        self.div.extend(elements)
42    }
43}
44
45impl Element for WithRemSize {
46    type RequestLayoutState = DivFrameState;
47    type PrepaintState = Option<Hitbox>;
48
49    fn id(&self) -> Option<ElementId> {
50        Element::id(&self.div)
51    }
52
53    fn source_location(&self) -> Option<&'static core::panic::Location<'static>> {
54        Element::source_location(&self.div)
55    }
56
57    fn request_layout(
58        &mut self,
59        id: Option<&GlobalElementId>,
60        inspector_id: Option<&gpui::InspectorElementId>,
61        window: &mut Window,
62        cx: &mut App,
63    ) -> (LayoutId, Self::RequestLayoutState) {
64        window.with_rem_size(Some(self.rem_size), |window| {
65            self.div.request_layout(id, inspector_id, window, cx)
66        })
67    }
68
69    fn prepaint(
70        &mut self,
71        id: Option<&GlobalElementId>,
72        inspector_id: Option<&gpui::InspectorElementId>,
73        bounds: Bounds<Pixels>,
74        request_layout: &mut Self::RequestLayoutState,
75        window: &mut Window,
76        cx: &mut App,
77    ) -> Self::PrepaintState {
78        window.with_rem_size(Some(self.rem_size), |window| {
79            self.div
80                .prepaint(id, inspector_id, bounds, request_layout, window, cx)
81        })
82    }
83
84    fn paint(
85        &mut self,
86        id: Option<&GlobalElementId>,
87        inspector_id: Option<&gpui::InspectorElementId>,
88        bounds: Bounds<Pixels>,
89        request_layout: &mut Self::RequestLayoutState,
90        prepaint: &mut Self::PrepaintState,
91        window: &mut Window,
92        cx: &mut App,
93    ) {
94        window.with_rem_size(Some(self.rem_size), |window| {
95            self.div.paint(
96                id,
97                inspector_id,
98                bounds,
99                request_layout,
100                prepaint,
101                window,
102                cx,
103            )
104        })
105    }
106}
107
108impl IntoElement for WithRemSize {
109    type Element = Self;
110
111    fn into_element(self) -> Self::Element {
112        self
113    }
114}
ui/utils/with_rem_size.rs

ui/utils/
with_rem_size.rs
