fix theme selector gaps (#3682)

- Don't scroll beyond end of uniform list
- Restore position of uniform_list padding

[[PR Description]]

Release Notes:

- N/A
This commit is contained in:
Conrad Irwin 2023-12-15 13:27:17 -07:00 committed by GitHub
commit b8cdcf4e93
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@ -191,19 +191,26 @@ impl Element for UniformList {
content_size, content_size,
&mut element_state.interactive, &mut element_state.interactive,
cx, cx,
|style, scroll_offset, cx| { |style, mut scroll_offset, cx| {
let border = style.border_widths.to_pixels(cx.rem_size()); let border = style.border_widths.to_pixels(cx.rem_size());
let padding = style.padding.to_pixels(bounds.size.into(), cx.rem_size()); let padding = style.padding.to_pixels(bounds.size.into(), cx.rem_size());
let padded_bounds = Bounds::from_corners( let padded_bounds = Bounds::from_corners(
bounds.origin + point(border.left + padding.left, border.top + padding.top), bounds.origin + point(border.left + padding.left, border.top),
bounds.lower_right() bounds.lower_right() - point(border.right + padding.right, border.bottom),
- point(border.right + padding.right, border.bottom + padding.bottom),
); );
cx.with_z_index(style.z_index.unwrap_or(0), |cx| { cx.with_z_index(style.z_index.unwrap_or(0), |cx| {
style.paint(bounds, cx, |cx| { style.paint(bounds, cx, |cx| {
if self.item_count > 0 { if self.item_count > 0 {
let content_height =
item_height * self.item_count + padding.top + padding.bottom;
let min_scroll_offset = padded_bounds.size.height - content_height;
if scroll_offset.y < min_scroll_offset {
shared_scroll_offset.borrow_mut().y = min_scroll_offset;
scroll_offset.y = min_scroll_offset;
}
if let Some(scroll_handle) = self.scroll_handle.clone() { if let Some(scroll_handle) = self.scroll_handle.clone() {
scroll_handle.0.borrow_mut().replace(ScrollHandleState { scroll_handle.0.borrow_mut().replace(ScrollHandleState {
item_height, item_height,
@ -213,7 +220,7 @@ impl Element for UniformList {
} }
let first_visible_element_ix = let first_visible_element_ix =
(-scroll_offset.y / item_height).floor() as usize; (-(scroll_offset.y + padding.top) / item_height).floor() as usize;
let last_visible_element_ix = let last_visible_element_ix =
((-scroll_offset.y + padded_bounds.size.height) / item_height) ((-scroll_offset.y + padded_bounds.size.height) / item_height)
.ceil() as usize; .ceil() as usize;
@ -226,7 +233,10 @@ impl Element for UniformList {
cx.with_content_mask(Some(content_mask), |cx| { cx.with_content_mask(Some(content_mask), |cx| {
for (item, ix) in items.iter_mut().zip(visible_range) { for (item, ix) in items.iter_mut().zip(visible_range) {
let item_origin = padded_bounds.origin let item_origin = padded_bounds.origin
+ point(px(0.), item_height * ix + scroll_offset.y); + point(
px(0.),
item_height * ix + scroll_offset.y + padding.top,
);
let available_space = size( let available_space = size(
AvailableSpace::Definite(padded_bounds.size.width), AvailableSpace::Definite(padded_bounds.size.width),
AvailableSpace::Definite(item_height), AvailableSpace::Definite(item_height),