Merge branch 'main' into collab_ui2

This commit is contained in:
Conrad Irwin
2023-11-15 21:04:47 -07:00
10 changed files with 147 additions and 319 deletions
+4 -10
View File
@@ -2400,21 +2400,14 @@ impl Element<Editor> for EditorElement {
Some(self.editor_id.into())
}
fn initialize(
fn layout(
&mut self,
editor: &mut Editor,
element_state: Option<Self::ElementState>,
cx: &mut gpui::ViewContext<Editor>,
) -> Self::ElementState {
) -> (gpui::LayoutId, Self::ElementState) {
editor.style = Some(self.style.clone()); // Long-term, we'd like to eliminate this.
}
fn layout(
&mut self,
editor: &mut Editor,
element_state: &mut Self::ElementState,
cx: &mut gpui::ViewContext<Editor>,
) -> gpui::LayoutId {
let rem_size = cx.rem_size();
let mut style = Style::default();
style.size.width = relative(1.).into();
@@ -2423,7 +2416,8 @@ impl Element<Editor> for EditorElement {
EditorMode::AutoHeight { .. } => todo!(),
EditorMode::Full => relative(1.).into(),
};
cx.request_layout(&style, None)
let layout_id = cx.request_layout(&style, None);
(layout_id, ())
}
fn paint(
+17 -73
View File
@@ -10,21 +10,12 @@ pub trait Element<V: 'static> {
fn element_id(&self) -> Option<ElementId>;
/// Called to initialize this element for the current frame. If this
/// element had state in a previous frame, it will be passed in for the 3rd argument.
fn initialize(
&mut self,
view_state: &mut V,
element_state: Option<Self::ElementState>,
cx: &mut ViewContext<V>,
) -> Self::ElementState;
fn layout(
&mut self,
view_state: &mut V,
element_state: &mut Self::ElementState,
previous_element_state: Option<Self::ElementState>,
cx: &mut ViewContext<V>,
) -> LayoutId;
) -> (LayoutId, Self::ElementState);
fn paint(
&mut self,
@@ -96,7 +87,6 @@ pub trait ParentComponent<V: 'static> {
}
trait ElementObject<V> {
fn initialize(&mut self, view_state: &mut V, cx: &mut ViewContext<V>);
fn layout(&mut self, view_state: &mut V, cx: &mut ViewContext<V>) -> LayoutId;
fn paint(&mut self, view_state: &mut V, cx: &mut ViewContext<V>);
fn measure(
@@ -123,9 +113,6 @@ struct RenderedElement<V: 'static, E: Element<V>> {
enum ElementRenderPhase<V> {
#[default]
Start,
Initialized {
frame_state: Option<V>,
},
LayoutRequested {
layout_id: LayoutId,
frame_state: Option<V>,
@@ -157,42 +144,19 @@ where
E: Element<V>,
E::ElementState: 'static,
{
fn initialize(&mut self, view_state: &mut V, cx: &mut ViewContext<V>) {
let frame_state = if let Some(id) = self.element.element_id() {
cx.with_element_state(id, |element_state, cx| {
let element_state = self.element.initialize(view_state, element_state, cx);
((), element_state)
});
None
} else {
let frame_state = self.element.initialize(view_state, None, cx);
Some(frame_state)
};
self.phase = ElementRenderPhase::Initialized { frame_state };
}
fn layout(&mut self, state: &mut V, cx: &mut ViewContext<V>) -> LayoutId {
let layout_id;
let mut frame_state;
match mem::take(&mut self.phase) {
ElementRenderPhase::Initialized {
frame_state: initial_frame_state,
} => {
frame_state = initial_frame_state;
let (layout_id, frame_state) = match mem::take(&mut self.phase) {
ElementRenderPhase::Start => {
if let Some(id) = self.element.element_id() {
layout_id = cx.with_element_state(id, |element_state, cx| {
let mut element_state = element_state.unwrap();
let layout_id = self.element.layout(state, &mut element_state, cx);
(layout_id, element_state)
let layout_id = cx.with_element_state(id, |element_state, cx| {
self.element.layout(state, element_state, cx)
});
(layout_id, None)
} else {
layout_id = self
.element
.layout(state, frame_state.as_mut().unwrap(), cx);
let (layout_id, frame_state) = self.element.layout(state, None, cx);
(layout_id, Some(frame_state))
}
}
ElementRenderPhase::Start => panic!("must call initialize before layout"),
ElementRenderPhase::LayoutRequested { .. }
| ElementRenderPhase::LayoutComputed { .. }
| ElementRenderPhase::Painted { .. } => {
@@ -244,10 +208,6 @@ where
cx: &mut ViewContext<V>,
) -> Size<Pixels> {
if matches!(&self.phase, ElementRenderPhase::Start) {
self.initialize(view_state, cx);
}
if matches!(&self.phase, ElementRenderPhase::Initialized { .. }) {
self.layout(view_state, cx);
}
@@ -284,16 +244,13 @@ where
fn draw(
&mut self,
mut origin: Point<Pixels>,
origin: Point<Pixels>,
available_space: Size<AvailableSpace>,
view_state: &mut V,
cx: &mut ViewContext<V>,
) {
self.measure(available_space, view_state, cx);
// Ignore the element offset when drawing this element, as the origin is already specified
// in absolute terms.
origin -= cx.element_offset();
cx.with_element_offset(origin, |cx| self.paint(view_state, cx))
cx.with_absolute_element_offset(origin, |cx| self.paint(view_state, cx))
}
}
@@ -309,10 +266,6 @@ impl<V> AnyElement<V> {
AnyElement(Box::new(RenderedElement::new(element)))
}
pub fn initialize(&mut self, view_state: &mut V, cx: &mut ViewContext<V>) {
self.0.initialize(view_state, cx);
}
pub fn layout(&mut self, view_state: &mut V, cx: &mut ViewContext<V>) -> LayoutId {
self.0.layout(view_state, cx)
}
@@ -393,25 +346,16 @@ where
None
}
fn initialize(
&mut self,
view_state: &mut V,
_rendered_element: Option<Self::ElementState>,
cx: &mut ViewContext<V>,
) -> Self::ElementState {
let render = self.take().unwrap();
let mut rendered_element = (render)(view_state, cx).render();
rendered_element.initialize(view_state, cx);
rendered_element
}
fn layout(
&mut self,
view_state: &mut V,
rendered_element: &mut Self::ElementState,
_: Option<Self::ElementState>,
cx: &mut ViewContext<V>,
) -> LayoutId {
rendered_element.layout(view_state, cx)
) -> (LayoutId, Self::ElementState) {
let render = self.take().unwrap();
let mut rendered_element = (render)(view_state, cx).render();
let layout_id = rendered_element.layout(view_state, cx);
(layout_id, rendered_element)
}
fn paint(
+28 -77
View File
@@ -436,14 +436,6 @@ pub trait FocusableComponent<V: 'static>: InteractiveComponent<V> {
self
}
fn focus_in(mut self, f: impl FnOnce(StyleRefinement) -> StyleRefinement) -> Self
where
Self: Sized,
{
self.interactivity().focus_in_style = f(StyleRefinement::default());
self
}
fn in_focus(mut self, f: impl FnOnce(StyleRefinement) -> StyleRefinement) -> Self
where
Self: Sized,
@@ -616,46 +608,36 @@ impl<V: 'static> Element<V> for Div<V> {
self.interactivity.element_id.clone()
}
fn initialize(
fn layout(
&mut self,
view_state: &mut V,
element_state: Option<Self::ElementState>,
cx: &mut ViewContext<V>,
) -> Self::ElementState {
let interactive_state = self
.interactivity
.initialize(element_state.map(|s| s.interactive_state), cx);
for child in &mut self.children {
child.initialize(view_state, cx);
}
DivState {
interactive_state,
child_layout_ids: SmallVec::new(),
}
}
fn layout(
&mut self,
view_state: &mut V,
element_state: &mut Self::ElementState,
cx: &mut ViewContext<V>,
) -> crate::LayoutId {
) -> (LayoutId, Self::ElementState) {
let mut child_layout_ids = SmallVec::new();
let mut interactivity = mem::take(&mut self.interactivity);
let layout_id =
interactivity.layout(&mut element_state.interactive_state, cx, |style, cx| {
let (layout_id, interactive_state) = interactivity.layout(
element_state.map(|s| s.interactive_state),
cx,
|style, cx| {
cx.with_text_style(style.text_style().cloned(), |cx| {
element_state.child_layout_ids = self
child_layout_ids = self
.children
.iter_mut()
.map(|child| child.layout(view_state, cx))
.collect::<SmallVec<_>>();
cx.request_layout(&style, element_state.child_layout_ids.iter().copied())
cx.request_layout(&style, child_layout_ids.iter().copied())
})
});
},
);
self.interactivity = interactivity;
layout_id
(
layout_id,
DivState {
interactive_state,
child_layout_ids,
},
)
}
fn paint(
@@ -739,7 +721,6 @@ pub struct Interactivity<V> {
pub group: Option<SharedString>,
pub base_style: StyleRefinement,
pub focus_style: StyleRefinement,
pub focus_in_style: StyleRefinement,
pub in_focus_style: StyleRefinement,
pub hover_style: StyleRefinement,
pub group_hover_style: Option<GroupStyle>,
@@ -765,11 +746,12 @@ impl<V> Interactivity<V>
where
V: 'static,
{
pub fn initialize(
pub fn layout(
&mut self,
element_state: Option<InteractiveElementState>,
cx: &mut ViewContext<V>,
) -> InteractiveElementState {
f: impl FnOnce(Style, &mut ViewContext<V>) -> LayoutId,
) -> (LayoutId, InteractiveElementState) {
let mut element_state = element_state.unwrap_or_default();
// Ensure we store a focus handle in our element state if we're focusable.
@@ -784,17 +766,9 @@ where
});
}
element_state
}
pub fn layout(
&mut self,
element_state: &mut InteractiveElementState,
cx: &mut ViewContext<V>,
f: impl FnOnce(Style, &mut ViewContext<V>) -> LayoutId,
) -> LayoutId {
let style = self.compute_style(None, element_state, cx);
f(style, cx)
let style = self.compute_style(None, &mut element_state, cx);
let layout_id = f(style, cx);
(layout_id, element_state)
}
pub fn paint(
@@ -1129,10 +1103,6 @@ where
style.refine(&self.base_style);
if let Some(focus_handle) = self.tracked_focus_handle.as_ref() {
if focus_handle.contains_focused(cx) {
style.refine(&self.focus_in_style);
}
if focus_handle.within_focused(cx) {
style.refine(&self.in_focus_style);
}
@@ -1205,7 +1175,6 @@ impl<V: 'static> Default for Interactivity<V> {
group: None,
base_style: StyleRefinement::default(),
focus_style: StyleRefinement::default(),
focus_in_style: StyleRefinement::default(),
in_focus_style: StyleRefinement::default(),
hover_style: StyleRefinement::default(),
group_hover_style: None,
@@ -1326,21 +1295,12 @@ where
self.element.element_id()
}
fn initialize(
fn layout(
&mut self,
view_state: &mut V,
element_state: Option<Self::ElementState>,
cx: &mut ViewContext<V>,
) -> Self::ElementState {
self.element.initialize(view_state, element_state, cx)
}
fn layout(
&mut self,
view_state: &mut V,
element_state: &mut Self::ElementState,
cx: &mut ViewContext<V>,
) -> LayoutId {
) -> (LayoutId, Self::ElementState) {
self.element.layout(view_state, element_state, cx)
}
@@ -1421,21 +1381,12 @@ where
self.element.element_id()
}
fn initialize(
fn layout(
&mut self,
view_state: &mut V,
element_state: Option<Self::ElementState>,
cx: &mut ViewContext<V>,
) -> Self::ElementState {
self.element.initialize(view_state, element_state, cx)
}
fn layout(
&mut self,
view_state: &mut V,
element_state: &mut Self::ElementState,
cx: &mut ViewContext<V>,
) -> LayoutId {
) -> (LayoutId, Self::ElementState) {
self.element.layout(view_state, element_state, cx)
}
+2 -11
View File
@@ -48,21 +48,12 @@ impl<V> Element<V> for Img<V> {
self.interactivity.element_id.clone()
}
fn initialize(
fn layout(
&mut self,
_view_state: &mut V,
element_state: Option<Self::ElementState>,
cx: &mut ViewContext<V>,
) -> Self::ElementState {
self.interactivity.initialize(element_state, cx)
}
fn layout(
&mut self,
_view_state: &mut V,
element_state: &mut Self::ElementState,
cx: &mut ViewContext<V>,
) -> LayoutId {
) -> (LayoutId, Self::ElementState) {
self.interactivity.layout(element_state, cx, |style, cx| {
cx.request_layout(&style, None)
})
+2 -11
View File
@@ -37,21 +37,12 @@ impl<V> Element<V> for Svg<V> {
self.interactivity.element_id.clone()
}
fn initialize(
fn layout(
&mut self,
_view_state: &mut V,
element_state: Option<Self::ElementState>,
cx: &mut ViewContext<V>,
) -> Self::ElementState {
self.interactivity.initialize(element_state, cx)
}
fn layout(
&mut self,
_view_state: &mut V,
element_state: &mut Self::ElementState,
cx: &mut ViewContext<V>,
) -> LayoutId {
) -> (LayoutId, Self::ElementState) {
self.interactivity.layout(element_state, cx, |style, cx| {
cx.request_layout(&style, None)
})
+4 -12
View File
@@ -76,21 +76,13 @@ impl<V: 'static> Element<V> for Text<V> {
None
}
fn initialize(
&mut self,
_view_state: &mut V,
element_state: Option<Self::ElementState>,
_cx: &mut ViewContext<V>,
) -> Self::ElementState {
element_state.unwrap_or_default()
}
fn layout(
&mut self,
_view: &mut V,
element_state: &mut Self::ElementState,
element_state: Option<Self::ElementState>,
cx: &mut ViewContext<V>,
) -> LayoutId {
) -> (LayoutId, Self::ElementState) {
let element_state = element_state.unwrap_or_default();
let text_system = cx.text_system().clone();
let text_style = cx.text_style();
let font_size = text_style.font_size.to_pixels(cx.rem_size());
@@ -148,7 +140,7 @@ impl<V: 'static> Element<V> for Text<V> {
}
});
layout_id
(layout_id, element_state)
}
fn paint(
+39 -47
View File
@@ -108,62 +108,54 @@ impl<V: 'static> Element<V> for UniformList<V> {
Some(self.id.clone())
}
fn initialize(
fn layout(
&mut self,
view_state: &mut V,
element_state: Option<Self::ElementState>,
cx: &mut ViewContext<V>,
) -> Self::ElementState {
if let Some(mut element_state) = element_state {
element_state.interactive = self
.interactivity
.initialize(Some(element_state.interactive), cx);
element_state
} else {
let item_size = self.measure_item(view_state, None, cx);
UniformListState {
interactive: self.interactivity.initialize(None, cx),
item_size,
}
}
}
fn layout(
&mut self,
_view_state: &mut V,
element_state: &mut Self::ElementState,
cx: &mut ViewContext<V>,
) -> LayoutId {
) -> (LayoutId, Self::ElementState) {
let max_items = self.item_count;
let item_size = element_state.item_size;
let rem_size = cx.rem_size();
let item_size = element_state
.as_ref()
.map(|s| s.item_size)
.unwrap_or_else(|| self.measure_item(view_state, None, cx));
self.interactivity
.layout(&mut element_state.interactive, cx, |style, cx| {
cx.request_measured_layout(
style,
rem_size,
move |known_dimensions: Size<Option<Pixels>>,
available_space: Size<AvailableSpace>| {
let desired_height = item_size.height * max_items;
let width = known_dimensions
.width
.unwrap_or(match available_space.width {
AvailableSpace::Definite(x) => x,
let (layout_id, interactive) =
self.interactivity
.layout(element_state.map(|s| s.interactive), cx, |style, cx| {
cx.request_measured_layout(
style,
rem_size,
move |known_dimensions: Size<Option<Pixels>>,
available_space: Size<AvailableSpace>| {
let desired_height = item_size.height * max_items;
let width =
known_dimensions
.width
.unwrap_or(match available_space.width {
AvailableSpace::Definite(x) => x,
AvailableSpace::MinContent | AvailableSpace::MaxContent => {
item_size.width
}
});
let height = match available_space.height {
AvailableSpace::Definite(x) => desired_height.min(x),
AvailableSpace::MinContent | AvailableSpace::MaxContent => {
item_size.width
desired_height
}
});
let height = match available_space.height {
AvailableSpace::Definite(x) => desired_height.min(x),
AvailableSpace::MinContent | AvailableSpace::MaxContent => {
desired_height
}
};
size(width, height)
},
)
})
};
size(width, height)
},
)
});
let element_state = UniformListState {
interactive,
item_size,
};
(layout_id, element_state)
}
fn paint(
+30 -59
View File
@@ -1,7 +1,7 @@
use crate::{
private::Sealed, AnyBox, AnyElement, AnyModel, AnyWeakModel, AppContext, AvailableSpace,
Bounds, Component, Element, ElementId, Entity, EntityId, Flatten, LayoutId, Model, Pixels,
Size, ViewContext, VisualContext, WeakModel, WindowContext,
BorrowWindow, Bounds, Component, Element, ElementId, Entity, EntityId, Flatten, LayoutId,
Model, Pixels, Point, Size, ViewContext, VisualContext, WeakModel, WindowContext,
};
use anyhow::{Context, Result};
use std::{
@@ -155,8 +155,7 @@ impl<V> Eq for WeakView<V> {}
#[derive(Clone, Debug)]
pub struct AnyView {
model: AnyModel,
initialize: fn(&AnyView, &mut WindowContext) -> AnyBox,
layout: fn(&AnyView, &mut AnyBox, &mut WindowContext) -> LayoutId,
layout: fn(&AnyView, &mut WindowContext) -> (LayoutId, Box<dyn Any>),
paint: fn(&AnyView, &mut AnyBox, &mut WindowContext),
}
@@ -164,7 +163,6 @@ impl AnyView {
pub fn downgrade(&self) -> AnyWeakView {
AnyWeakView {
model: self.model.downgrade(),
initialize: self.initialize,
layout: self.layout,
paint: self.paint,
}
@@ -175,7 +173,6 @@ impl AnyView {
Ok(model) => Ok(View { model }),
Err(model) => Err(Self {
model,
initialize: self.initialize,
layout: self.layout,
paint: self.paint,
}),
@@ -186,13 +183,19 @@ impl AnyView {
self.model.entity_type
}
pub(crate) fn draw(&self, available_space: Size<AvailableSpace>, cx: &mut WindowContext) {
let mut rendered_element = (self.initialize)(self, cx);
let layout_id = (self.layout)(self, &mut rendered_element, cx);
cx.window
.layout_engine
.compute_layout(layout_id, available_space);
(self.paint)(self, &mut rendered_element, cx);
pub(crate) fn draw(
&self,
origin: Point<Pixels>,
available_space: Size<AvailableSpace>,
cx: &mut WindowContext,
) {
cx.with_absolute_element_offset(origin, |cx| {
let (layout_id, mut rendered_element) = (self.layout)(self, cx);
cx.window
.layout_engine
.compute_layout(layout_id, available_space);
(self.paint)(self, &mut rendered_element, cx);
})
}
}
@@ -206,7 +209,6 @@ impl<V: Render> From<View<V>> for AnyView {
fn from(value: View<V>) -> Self {
AnyView {
model: value.model.into_any(),
initialize: any_view::initialize::<V>,
layout: any_view::layout::<V>,
paint: any_view::paint::<V>,
}
@@ -220,22 +222,13 @@ impl<ParentViewState: 'static> Element<ParentViewState> for AnyView {
Some(self.model.entity_id.into())
}
fn initialize(
fn layout(
&mut self,
_view_state: &mut ParentViewState,
_element_state: Option<Self::ElementState>,
cx: &mut ViewContext<ParentViewState>,
) -> Self::ElementState {
(self.initialize)(self, cx)
}
fn layout(
&mut self,
_view_state: &mut ParentViewState,
rendered_element: &mut Self::ElementState,
cx: &mut ViewContext<ParentViewState>,
) -> LayoutId {
(self.layout)(self, rendered_element, cx)
) -> (LayoutId, Self::ElementState) {
(self.layout)(self, cx)
}
fn paint(
@@ -251,8 +244,7 @@ impl<ParentViewState: 'static> Element<ParentViewState> for AnyView {
pub struct AnyWeakView {
model: AnyWeakModel,
initialize: fn(&AnyView, &mut WindowContext) -> AnyBox,
layout: fn(&AnyView, &mut AnyBox, &mut WindowContext) -> LayoutId,
layout: fn(&AnyView, &mut WindowContext) -> (LayoutId, Box<dyn Any>),
paint: fn(&AnyView, &mut AnyBox, &mut WindowContext),
}
@@ -261,7 +253,6 @@ impl AnyWeakView {
let model = self.model.upgrade()?;
Some(AnyView {
model,
initialize: self.initialize,
layout: self.layout,
paint: self.paint,
})
@@ -272,7 +263,6 @@ impl<V: Render> From<WeakView<V>> for AnyWeakView {
fn from(view: WeakView<V>) -> Self {
Self {
model: view.model.into(),
initialize: any_view::initialize::<V>,
layout: any_view::layout::<V>,
paint: any_view::paint::<V>,
}
@@ -319,28 +309,19 @@ where
Some(self.view.entity_id().into())
}
fn initialize(
fn layout(
&mut self,
_: &mut ParentViewState,
_: Option<Self::ElementState>,
cx: &mut ViewContext<ParentViewState>,
) -> Self::ElementState {
) -> (LayoutId, Self::ElementState) {
self.view.update(cx, |view, cx| {
let mut element = self.component.take().unwrap().render();
element.initialize(view, cx);
element
let layout_id = element.layout(view, cx);
(layout_id, element)
})
}
fn layout(
&mut self,
_: &mut ParentViewState,
element: &mut Self::ElementState,
cx: &mut ViewContext<ParentViewState>,
) -> LayoutId {
self.view.update(cx, |view, cx| element.layout(view, cx))
}
fn paint(
&mut self,
_: Bounds<Pixels>,
@@ -356,27 +337,17 @@ mod any_view {
use crate::{AnyElement, AnyView, BorrowWindow, LayoutId, Render, WindowContext};
use std::any::Any;
pub(crate) fn initialize<V: Render>(view: &AnyView, cx: &mut WindowContext) -> Box<dyn Any> {
cx.with_element_id(Some(view.model.entity_id), |cx| {
let view = view.clone().downcast::<V>().unwrap();
let element = view.update(cx, |view, cx| {
let mut element = AnyElement::new(view.render(cx));
element.initialize(view, cx);
element
});
Box::new(element)
})
}
pub(crate) fn layout<V: Render>(
view: &AnyView,
element: &mut Box<dyn Any>,
cx: &mut WindowContext,
) -> LayoutId {
) -> (LayoutId, Box<dyn Any>) {
cx.with_element_id(Some(view.model.entity_id), |cx| {
let view = view.clone().downcast::<V>().unwrap();
let element = element.downcast_mut::<AnyElement<V>>().unwrap();
view.update(cx, |view, cx| element.layout(view, cx))
view.update(cx, |view, cx| {
let mut element = AnyElement::new(view.render(cx));
let layout_id = element.layout(view, cx);
(layout_id, Box::new(element) as Box<dyn Any>)
})
})
}
+21 -18
View File
@@ -1076,29 +1076,22 @@ impl<'a> WindowContext<'a> {
self.with_z_index(0, |cx| {
let available_space = cx.window.viewport_size.map(Into::into);
root_view.draw(available_space, cx);
root_view.draw(Point::zero(), available_space, cx);
});
if let Some(active_drag) = self.app.active_drag.take() {
self.with_z_index(1, |cx| {
let offset = cx.mouse_position() - active_drag.cursor_offset;
cx.with_element_offset(offset, |cx| {
let available_space =
size(AvailableSpace::MinContent, AvailableSpace::MinContent);
active_drag.view.draw(available_space, cx);
cx.active_drag = Some(active_drag);
});
let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
active_drag.view.draw(offset, available_space, cx);
cx.active_drag = Some(active_drag);
});
} else if let Some(active_tooltip) = self.app.active_tooltip.take() {
self.with_z_index(1, |cx| {
cx.with_element_offset(active_tooltip.cursor_offset, |cx| {
let available_space = Size {
width: cx.window.viewport_size.width - active_tooltip.cursor_offset.x,
height: cx.window.viewport_size.height - active_tooltip.cursor_offset.y,
}
.map(Into::into);
active_tooltip.view.draw(available_space, cx);
});
let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
active_tooltip
.view
.draw(active_tooltip.cursor_offset, available_space, cx);
});
}
@@ -1636,8 +1629,8 @@ pub trait BorrowWindow: BorrowMut<Window> + BorrowMut<AppContext> {
}
}
/// Update the global element offset based on the given offset. This is used to implement
/// scrolling and position drag handles.
/// Update the global element offset relative to the current offset. This is used to implement
/// scrolling.
fn with_element_offset<R>(
&mut self,
offset: Point<Pixels>,
@@ -1647,7 +1640,17 @@ pub trait BorrowWindow: BorrowMut<Window> + BorrowMut<AppContext> {
return f(self);
};
let offset = self.element_offset() + offset;
let abs_offset = self.element_offset() + offset;
self.with_absolute_element_offset(abs_offset, f)
}
/// Update the global element offset based on the given offset. This is used to implement
/// drag handles and other manual painting of elements.
fn with_absolute_element_offset<R>(
&mut self,
offset: Point<Pixels>,
f: impl FnOnce(&mut Self) -> R,
) -> R {
self.window_mut()
.current_frame
.element_offset_stack
-1
View File
@@ -57,7 +57,6 @@ impl Render for FocusStory {
.size_full()
.bg(color_1)
.focus(|style| style.bg(color_2))
.focus_in(|style| style.bg(color_3))
.child(
div()
.track_focus(&self.child_1_focus)