104 lines
3.5 KiB
Rust
104 lines
3.5 KiB
Rust
use super::Axis;
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use crate::{
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Autoscroll, Bias, Editor, EditorMode, NextScreen, ScrollAnchor, ScrollCursorBottom,
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ScrollCursorCenter, ScrollCursorTop,
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};
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use gpui::{actions, AppContext, Point, ViewContext};
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impl Editor {
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pub fn next_screen(&mut self, _: &NextScreen, cx: &mut ViewContext<Editor>) {
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if self.take_rename(true, cx).is_some() {
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return;
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}
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// todo!()
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// if self.mouse_context_menu.read(cx).visible() {
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// return None;
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// }
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if matches!(self.mode, EditorMode::SingleLine) {
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cx.propagate();
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return;
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}
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self.request_autoscroll(Autoscroll::Next, cx);
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}
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pub fn scroll(
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&mut self,
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scroll_position: Point<f32>,
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axis: Option<Axis>,
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cx: &mut ViewContext<Self>,
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) {
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self.scroll_manager.update_ongoing_scroll(axis);
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self.set_scroll_position(scroll_position, cx);
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}
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pub fn scroll_cursor_top(&mut self, _: &ScrollCursorTop, cx: &mut ViewContext<Editor>) {
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let snapshot = self.snapshot(cx).display_snapshot;
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let scroll_margin_rows = self.vertical_scroll_margin() as u32;
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let mut new_screen_top = self.selections.newest_display(cx).head();
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*new_screen_top.row_mut() = new_screen_top.row().saturating_sub(scroll_margin_rows);
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*new_screen_top.column_mut() = 0;
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let new_screen_top = new_screen_top.to_offset(&snapshot, Bias::Left);
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let new_anchor = snapshot.buffer_snapshot.anchor_before(new_screen_top);
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self.set_scroll_anchor(
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ScrollAnchor {
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anchor: new_anchor,
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offset: Default::default(),
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},
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cx,
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)
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}
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pub fn scroll_cursor_center(&mut self, _: &ScrollCursorCenter, cx: &mut ViewContext<Editor>) {
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let snapshot = self.snapshot(cx).display_snapshot;
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let visible_rows = if let Some(visible_rows) = self.visible_line_count() {
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visible_rows as u32
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} else {
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return;
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};
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let mut new_screen_top = self.selections.newest_display(cx).head();
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*new_screen_top.row_mut() = new_screen_top.row().saturating_sub(visible_rows / 2);
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*new_screen_top.column_mut() = 0;
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let new_screen_top = new_screen_top.to_offset(&snapshot, Bias::Left);
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let new_anchor = snapshot.buffer_snapshot.anchor_before(new_screen_top);
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self.set_scroll_anchor(
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ScrollAnchor {
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anchor: new_anchor,
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offset: Default::default(),
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},
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cx,
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)
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}
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pub fn scroll_cursor_bottom(&mut self, _: &ScrollCursorBottom, cx: &mut ViewContext<Editor>) {
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let snapshot = self.snapshot(cx).display_snapshot;
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let scroll_margin_rows = self.vertical_scroll_margin() as u32;
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let visible_rows = if let Some(visible_rows) = self.visible_line_count() {
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visible_rows as u32
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} else {
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return;
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};
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let mut new_screen_top = self.selections.newest_display(cx).head();
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*new_screen_top.row_mut() = new_screen_top
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.row()
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.saturating_sub(visible_rows.saturating_sub(scroll_margin_rows));
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*new_screen_top.column_mut() = 0;
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let new_screen_top = new_screen_top.to_offset(&snapshot, Bias::Left);
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let new_anchor = snapshot.buffer_snapshot.anchor_before(new_screen_top);
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self.set_scroll_anchor(
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ScrollAnchor {
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anchor: new_anchor,
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offset: Default::default(),
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},
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cx,
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)
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}
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}
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