use super::Axis;use crate::{    Autoscroll, Bias, Editor, EditorMode, NextScreen, NextScrollCursorCenterTopBottom,    ScrollAnchor, ScrollCursorBottom, ScrollCursorCenter, ScrollCursorCenterTopBottom,    ScrollCursorTop, SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT,};use gpui::{Point, ViewContext}; impl Editor {    pub fn next_screen(&mut self, _: &NextScreen, cx: &mut ViewContext<Editor>) {        if self.take_rename(true, cx).is_some() {            return;        }         if self.mouse_context_menu.is_some() {            return;        }         if matches!(self.mode, EditorMode::SingleLine { .. }) {            cx.propagate();            return;        }        self.request_autoscroll(Autoscroll::Next, cx);    }     pub fn scroll(        &mut self,        scroll_position: Point<f32>,        axis: Option<Axis>,        cx: &mut ViewContext<Self>,    ) {        self.scroll_manager.update_ongoing_scroll(axis);        self.set_scroll_position(scroll_position, cx);    }     pub fn scroll_cursor_center_top_bottom(        &mut self,        _: &ScrollCursorCenterTopBottom,        cx: &mut ViewContext<Self>,    ) {        let snapshot = self.snapshot(cx).display_snapshot;        let visible_rows = if let Some(visible_rows) = self.visible_line_count() {            visible_rows as u32        } else {            return;        };         let scroll_margin_rows = self.vertical_scroll_margin() as u32;        let mut new_screen_top = self.selections.newest_display(cx).head();        *new_screen_top.column_mut() = 0;        match self.next_scroll_position {            NextScrollCursorCenterTopBottom::Center => {                *new_screen_top.row_mut() = new_screen_top.row().0.saturating_sub(visible_rows / 2);            }            NextScrollCursorCenterTopBottom::Top => {                *new_screen_top.row_mut() =                    new_screen_top.row().0.saturating_sub(scroll_margin_rows);            }            NextScrollCursorCenterTopBottom::Bottom => {                *new_screen_top.row_mut() = new_screen_top                    .row()                    .0                    .saturating_sub(visible_rows.saturating_sub(scroll_margin_rows));            }        }        self.set_scroll_anchor(            ScrollAnchor {                anchor: snapshot                    .buffer_snapshot                    .anchor_before(new_screen_top.to_offset(&snapshot, Bias::Left)),                offset: Default::default(),            },            cx,        );         self.next_scroll_position = self.next_scroll_position.next();        self._scroll_cursor_center_top_bottom_task =            cx.spawn(|editor, mut cx: gpui::AsyncWindowContext| async move {                cx.background_executor()                    .timer(SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT)                    .await;                editor                    .update(&mut cx, |editor, _| {                        editor.next_scroll_position = NextScrollCursorCenterTopBottom::default();                    })                    .ok();            });    }     pub fn scroll_cursor_top(&mut self, _: &ScrollCursorTop, cx: &mut ViewContext<Editor>) {        let snapshot = self.snapshot(cx).display_snapshot;        let scroll_margin_rows = self.vertical_scroll_margin() as u32;         let mut new_screen_top = self.selections.newest_display(cx).head();        *new_screen_top.row_mut() = new_screen_top.row().0.saturating_sub(scroll_margin_rows);        *new_screen_top.column_mut() = 0;        let new_screen_top = new_screen_top.to_offset(&snapshot, Bias::Left);        let new_anchor = snapshot.buffer_snapshot.anchor_before(new_screen_top);         self.set_scroll_anchor(            ScrollAnchor {                anchor: new_anchor,                offset: Default::default(),            },            cx,        )    }     pub fn scroll_cursor_center(&mut self, _: &ScrollCursorCenter, cx: &mut ViewContext<Editor>) {        let snapshot = self.snapshot(cx).display_snapshot;        let visible_rows = if let Some(visible_rows) = self.visible_line_count() {            visible_rows as u32        } else {            return;        };         let mut new_screen_top = self.selections.newest_display(cx).head();        *new_screen_top.row_mut() = new_screen_top.row().0.saturating_sub(visible_rows / 2);        *new_screen_top.column_mut() = 0;        let new_screen_top = new_screen_top.to_offset(&snapshot, Bias::Left);        let new_anchor = snapshot.buffer_snapshot.anchor_before(new_screen_top);         self.set_scroll_anchor(            ScrollAnchor {                anchor: new_anchor,                offset: Default::default(),            },            cx,        )    }     pub fn scroll_cursor_bottom(&mut self, _: &ScrollCursorBottom, cx: &mut ViewContext<Editor>) {        let snapshot = self.snapshot(cx).display_snapshot;        let scroll_margin_rows = self.vertical_scroll_margin() as u32;        let visible_rows = if let Some(visible_rows) = self.visible_line_count() {            visible_rows as u32        } else {            return;        };         let mut new_screen_top = self.selections.newest_display(cx).head();        *new_screen_top.row_mut() = new_screen_top            .row()            .0            .saturating_sub(visible_rows.saturating_sub(scroll_margin_rows));        *new_screen_top.column_mut() = 0;        let new_screen_top = new_screen_top.to_offset(&snapshot, Bias::Left);        let new_anchor = snapshot.buffer_snapshot.anchor_before(new_screen_top);         self.set_scroll_anchor(            ScrollAnchor {                anchor: new_anchor,                offset: Default::default(),            },            cx,        )    }}