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Save cursor scroll position when the editor is auto-scrolled

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This commit is contained in:
Antonio Scandurra 2023-06-14 11:43:44 +02:00
parent 1aa1774688
commit 56b0bf8601
5 changed files with 29 additions and 16 deletions
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1
crates/editor/src/editor.rs
View file

@ -7449,6 +7449,7 @@ pub enum Event {
},
ScrollPositionChanged {
local: bool,
autoscroll: bool,
},
Closed,
}

2
crates/editor/src/items.rs
View file

@ -294,7 +294,7 @@ impl FollowableItem for Editor {
match event {
Event::Edited => true,
Event::SelectionsChanged { local } => *local,
Event::ScrollPositionChanged { local } => *local,
Event::ScrollPositionChanged { local, .. } => *local,
_ => false,
}
}

23
crates/editor/src/scroll.rs
View file

@ -173,6 +173,7 @@ impl ScrollManager {
scroll_position: Vector2F,
map: &DisplaySnapshot,
local: bool,
autoscroll: bool,
workspace_id: Option<i64>,
cx: &mut ViewContext<Editor>,
) {
@ -203,7 +204,7 @@ impl ScrollManager {
)
};
self.set_anchor(new_anchor, top_row, local, workspace_id, cx);
self.set_anchor(new_anchor, top_row, local, autoscroll, workspace_id, cx);
}
fn set_anchor(
@ -211,11 +212,12 @@ impl ScrollManager {
anchor: ScrollAnchor,
top_row: u32,
local: bool,
autoscroll: bool,
workspace_id: Option<i64>,
cx: &mut ViewContext<Editor>,
) {
self.anchor = anchor;
cx.emit(Event::ScrollPositionChanged { local });
cx.emit(Event::ScrollPositionChanged { local, autoscroll });
self.show_scrollbar(cx);
self.autoscroll_request.take();
if let Some(workspace_id) = workspace_id {
@ -296,21 +298,28 @@ impl Editor {
}
pub fn set_scroll_position(&mut self, scroll_position: Vector2F, cx: &mut ViewContext<Self>) {
self.set_scroll_position_internal(scroll_position, true, cx);
self.set_scroll_position_internal(scroll_position, true, false, cx);
}
pub(crate) fn set_scroll_position_internal(
&mut self,
scroll_position: Vector2F,
local: bool,
autoscroll: bool,
cx: &mut ViewContext<Self>,
) {
let map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
hide_hover(self, cx);
let workspace_id = self.workspace.as_ref().map(|workspace| workspace.1);
self.scroll_manager
.set_scroll_position(scroll_position, &map, local, workspace_id, cx);
self.scroll_manager.set_scroll_position(
scroll_position,
&map,
local,
autoscroll,
workspace_id,
cx,
);
}
pub fn scroll_position(&self, cx: &mut ViewContext<Self>) -> Vector2F {
@ -326,7 +335,7 @@ impl Editor {
.to_point(&self.buffer().read(cx).snapshot(cx))
.row;
self.scroll_manager
.set_anchor(scroll_anchor, top_row, true, workspace_id, cx);
.set_anchor(scroll_anchor, top_row, true, false, workspace_id, cx);
}
pub(crate) fn set_scroll_anchor_remote(
@ -341,7 +350,7 @@ impl Editor {
.to_point(&self.buffer().read(cx).snapshot(cx))
.row;
self.scroll_manager
.set_anchor(scroll_anchor, top_row, false, workspace_id, cx);
.set_anchor(scroll_anchor, top_row, false, false, workspace_id, cx);
}
pub fn scroll_screen(&mut self, amount: &ScrollAmount, cx: &mut ViewContext<Self>) {

10
crates/editor/src/scroll/autoscroll.rs
View file

@ -136,23 +136,23 @@ impl Editor {
if target_top < start_row {
scroll_position.set_y(target_top);
self.set_scroll_position_internal(scroll_position, local, cx);
self.set_scroll_position_internal(scroll_position, local, true, cx);
} else if target_bottom >= end_row {
scroll_position.set_y(target_bottom - visible_lines);
self.set_scroll_position_internal(scroll_position, local, cx);
self.set_scroll_position_internal(scroll_position, local, true, cx);
}
}
AutoscrollStrategy::Center => {
scroll_position.set_y((first_cursor_top - margin).max(0.0));
self.set_scroll_position_internal(scroll_position, local, cx);
self.set_scroll_position_internal(scroll_position, local, true, cx);
}
AutoscrollStrategy::Top => {
scroll_position.set_y((first_cursor_top).max(0.0));
self.set_scroll_position_internal(scroll_position, local, cx);
self.set_scroll_position_internal(scroll_position, local, true, cx);
}
AutoscrollStrategy::Bottom => {
scroll_position.set_y((last_cursor_bottom - visible_lines).max(0.0));
self.set_scroll_position_internal(scroll_position, local, cx);
self.set_scroll_position_internal(scroll_position, local, true, cx);
}
}