820 lines
26 KiB
Rust
820 lines
26 KiB
Rust
use super::{Bias, DisplayPoint, DisplaySnapshot, SelectionGoal, ToDisplayPoint};
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use crate::{char_kind, CharKind, ToOffset, ToPoint};
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use language::Point;
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use std::ops::Range;
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#[derive(Debug, PartialEq)]
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pub enum FindRange {
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SingleLine,
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MultiLine,
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}
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pub fn left(map: &DisplaySnapshot, mut point: DisplayPoint) -> DisplayPoint {
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if point.column() > 0 {
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*point.column_mut() -= 1;
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} else if point.row() > 0 {
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*point.row_mut() -= 1;
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*point.column_mut() = map.line_len(point.row());
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}
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map.clip_point(point, Bias::Left)
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}
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pub fn saturating_left(map: &DisplaySnapshot, mut point: DisplayPoint) -> DisplayPoint {
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if point.column() > 0 {
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*point.column_mut() -= 1;
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}
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map.clip_point(point, Bias::Left)
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}
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pub fn right(map: &DisplaySnapshot, mut point: DisplayPoint) -> DisplayPoint {
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let max_column = map.line_len(point.row());
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if point.column() < max_column {
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*point.column_mut() += 1;
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} else if point.row() < map.max_point().row() {
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*point.row_mut() += 1;
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*point.column_mut() = 0;
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}
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map.clip_point(point, Bias::Right)
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}
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pub fn saturating_right(map: &DisplaySnapshot, mut point: DisplayPoint) -> DisplayPoint {
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*point.column_mut() += 1;
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map.clip_point(point, Bias::Right)
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}
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pub fn up(
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map: &DisplaySnapshot,
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start: DisplayPoint,
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goal: SelectionGoal,
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preserve_column_at_start: bool,
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) -> (DisplayPoint, SelectionGoal) {
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up_by_rows(map, start, 1, goal, preserve_column_at_start)
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}
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pub fn down(
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map: &DisplaySnapshot,
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start: DisplayPoint,
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goal: SelectionGoal,
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preserve_column_at_end: bool,
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) -> (DisplayPoint, SelectionGoal) {
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down_by_rows(map, start, 1, goal, preserve_column_at_end)
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}
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pub fn up_by_rows(
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map: &DisplaySnapshot,
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start: DisplayPoint,
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row_count: u32,
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goal: SelectionGoal,
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preserve_column_at_start: bool,
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) -> (DisplayPoint, SelectionGoal) {
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let mut goal_column = match goal {
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SelectionGoal::Column(column) => column,
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SelectionGoal::ColumnRange { end, .. } => end,
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_ => map.column_to_chars(start.row(), start.column()),
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};
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let prev_row = start.row().saturating_sub(row_count);
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let mut point = map.clip_point(
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DisplayPoint::new(prev_row, map.line_len(prev_row)),
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Bias::Left,
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);
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if point.row() < start.row() {
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*point.column_mut() = map.column_from_chars(point.row(), goal_column);
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} else if preserve_column_at_start {
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return (start, goal);
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} else {
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point = DisplayPoint::new(0, 0);
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goal_column = 0;
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}
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let mut clipped_point = map.clip_point(point, Bias::Left);
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if clipped_point.row() < point.row() {
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clipped_point = map.clip_point(point, Bias::Right);
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}
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(clipped_point, SelectionGoal::Column(goal_column))
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}
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pub fn down_by_rows(
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map: &DisplaySnapshot,
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start: DisplayPoint,
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row_count: u32,
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goal: SelectionGoal,
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preserve_column_at_end: bool,
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) -> (DisplayPoint, SelectionGoal) {
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let mut goal_column = match goal {
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SelectionGoal::Column(column) => column,
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SelectionGoal::ColumnRange { end, .. } => end,
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_ => map.column_to_chars(start.row(), start.column()),
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};
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let new_row = start.row() + row_count;
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let mut point = map.clip_point(DisplayPoint::new(new_row, 0), Bias::Right);
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if point.row() > start.row() {
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*point.column_mut() = map.column_from_chars(point.row(), goal_column);
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} else if preserve_column_at_end {
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return (start, goal);
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} else {
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point = map.max_point();
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goal_column = map.column_to_chars(point.row(), point.column())
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}
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let mut clipped_point = map.clip_point(point, Bias::Right);
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if clipped_point.row() > point.row() {
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clipped_point = map.clip_point(point, Bias::Left);
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}
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(clipped_point, SelectionGoal::Column(goal_column))
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}
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pub fn line_beginning(
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map: &DisplaySnapshot,
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display_point: DisplayPoint,
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stop_at_soft_boundaries: bool,
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) -> DisplayPoint {
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let point = display_point.to_point(map);
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let soft_line_start = map.clip_point(DisplayPoint::new(display_point.row(), 0), Bias::Right);
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let line_start = map.prev_line_boundary(point).1;
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if stop_at_soft_boundaries && display_point != soft_line_start {
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soft_line_start
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} else {
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line_start
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}
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}
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pub fn indented_line_beginning(
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map: &DisplaySnapshot,
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display_point: DisplayPoint,
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stop_at_soft_boundaries: bool,
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) -> DisplayPoint {
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let point = display_point.to_point(map);
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let soft_line_start = map.clip_point(DisplayPoint::new(display_point.row(), 0), Bias::Right);
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let indent_start = Point::new(
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point.row,
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map.buffer_snapshot.indent_size_for_line(point.row).len,
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)
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.to_display_point(map);
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let line_start = map.prev_line_boundary(point).1;
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if stop_at_soft_boundaries && soft_line_start > indent_start && display_point != soft_line_start
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{
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soft_line_start
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} else if stop_at_soft_boundaries && display_point != indent_start {
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indent_start
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} else {
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line_start
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}
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}
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pub fn line_end(
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map: &DisplaySnapshot,
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display_point: DisplayPoint,
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stop_at_soft_boundaries: bool,
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) -> DisplayPoint {
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let soft_line_end = map.clip_point(
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DisplayPoint::new(display_point.row(), map.line_len(display_point.row())),
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Bias::Left,
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);
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if stop_at_soft_boundaries && display_point != soft_line_end {
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soft_line_end
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} else {
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map.next_line_boundary(display_point.to_point(map)).1
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}
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}
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pub fn previous_word_start(map: &DisplaySnapshot, point: DisplayPoint) -> DisplayPoint {
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let raw_point = point.to_point(map);
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let scope = map.buffer_snapshot.language_scope_at(raw_point);
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find_preceding_boundary(map, point, FindRange::MultiLine, |left, right| {
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(char_kind(&scope, left) != char_kind(&scope, right) && !right.is_whitespace())
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|| left == '\n'
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})
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}
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pub fn previous_subword_start(map: &DisplaySnapshot, point: DisplayPoint) -> DisplayPoint {
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let raw_point = point.to_point(map);
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let scope = map.buffer_snapshot.language_scope_at(raw_point);
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find_preceding_boundary(map, point, FindRange::MultiLine, |left, right| {
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let is_word_start =
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char_kind(&scope, left) != char_kind(&scope, right) && !right.is_whitespace();
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let is_subword_start =
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left == '_' && right != '_' || left.is_lowercase() && right.is_uppercase();
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is_word_start || is_subword_start || left == '\n'
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})
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}
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pub fn next_word_end(map: &DisplaySnapshot, point: DisplayPoint) -> DisplayPoint {
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let raw_point = point.to_point(map);
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let scope = map.buffer_snapshot.language_scope_at(raw_point);
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find_boundary(map, point, FindRange::MultiLine, |left, right| {
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(char_kind(&scope, left) != char_kind(&scope, right) && !left.is_whitespace())
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|| right == '\n'
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})
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}
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pub fn next_subword_end(map: &DisplaySnapshot, point: DisplayPoint) -> DisplayPoint {
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let raw_point = point.to_point(map);
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let scope = map.buffer_snapshot.language_scope_at(raw_point);
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find_boundary(map, point, FindRange::MultiLine, |left, right| {
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let is_word_end =
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(char_kind(&scope, left) != char_kind(&scope, right)) && !left.is_whitespace();
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let is_subword_end =
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left != '_' && right == '_' || left.is_lowercase() && right.is_uppercase();
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is_word_end || is_subword_end || right == '\n'
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})
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}
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pub fn start_of_paragraph(
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map: &DisplaySnapshot,
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display_point: DisplayPoint,
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mut count: usize,
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) -> DisplayPoint {
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let point = display_point.to_point(map);
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if point.row == 0 {
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return DisplayPoint::zero();
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}
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let mut found_non_blank_line = false;
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for row in (0..point.row + 1).rev() {
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let blank = map.buffer_snapshot.is_line_blank(row);
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if found_non_blank_line && blank {
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if count <= 1 {
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return Point::new(row, 0).to_display_point(map);
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}
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count -= 1;
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found_non_blank_line = false;
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}
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found_non_blank_line |= !blank;
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}
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DisplayPoint::zero()
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}
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pub fn end_of_paragraph(
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map: &DisplaySnapshot,
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display_point: DisplayPoint,
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mut count: usize,
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) -> DisplayPoint {
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let point = display_point.to_point(map);
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if point.row == map.max_buffer_row() {
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return map.max_point();
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}
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let mut found_non_blank_line = false;
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for row in point.row..map.max_buffer_row() + 1 {
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let blank = map.buffer_snapshot.is_line_blank(row);
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if found_non_blank_line && blank {
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if count <= 1 {
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return Point::new(row, 0).to_display_point(map);
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}
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count -= 1;
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found_non_blank_line = false;
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}
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found_non_blank_line |= !blank;
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}
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map.max_point()
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}
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/// Scans for a boundary preceding the given start point `from` until a boundary is found,
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/// indicated by the given predicate returning true.
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/// The predicate is called with the character to the left and right of the candidate boundary location.
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/// If FindRange::SingleLine is specified and no boundary is found before the start of the current line, the start of the current line will be returned.
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pub fn find_preceding_boundary(
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map: &DisplaySnapshot,
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from: DisplayPoint,
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find_range: FindRange,
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mut is_boundary: impl FnMut(char, char) -> bool,
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) -> DisplayPoint {
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let mut prev_ch = None;
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let mut offset = from.to_point(map).to_offset(&map.buffer_snapshot);
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for ch in map.buffer_snapshot.reversed_chars_at(offset) {
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if find_range == FindRange::SingleLine && ch == '\n' {
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break;
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}
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if let Some(prev_ch) = prev_ch {
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if is_boundary(ch, prev_ch) {
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break;
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}
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}
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offset -= ch.len_utf8();
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prev_ch = Some(ch);
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}
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map.clip_point(offset.to_display_point(map), Bias::Left)
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}
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/// Scans for a boundary following the given start point until a boundary is found, indicated by the
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/// given predicate returning true. The predicate is called with the character to the left and right
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/// of the candidate boundary location, and will be called with `\n` characters indicating the start
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/// or end of a line.
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pub fn find_boundary(
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map: &DisplaySnapshot,
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from: DisplayPoint,
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find_range: FindRange,
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mut is_boundary: impl FnMut(char, char) -> bool,
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) -> DisplayPoint {
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let mut offset = from.to_offset(&map, Bias::Right);
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let mut prev_ch = None;
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for ch in map.buffer_snapshot.chars_at(offset) {
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if find_range == FindRange::SingleLine && ch == '\n' {
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break;
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}
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if let Some(prev_ch) = prev_ch {
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if is_boundary(prev_ch, ch) {
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break;
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}
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}
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offset += ch.len_utf8();
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prev_ch = Some(ch);
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}
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map.clip_point(offset.to_display_point(map), Bias::Right)
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}
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pub fn is_inside_word(map: &DisplaySnapshot, point: DisplayPoint) -> bool {
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let raw_point = point.to_point(map);
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let scope = map.buffer_snapshot.language_scope_at(raw_point);
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let ix = map.clip_point(point, Bias::Left).to_offset(map, Bias::Left);
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let text = &map.buffer_snapshot;
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let next_char_kind = text.chars_at(ix).next().map(|c| char_kind(&scope, c));
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let prev_char_kind = text
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.reversed_chars_at(ix)
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.next()
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.map(|c| char_kind(&scope, c));
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prev_char_kind.zip(next_char_kind) == Some((CharKind::Word, CharKind::Word))
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}
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pub fn surrounding_word(map: &DisplaySnapshot, position: DisplayPoint) -> Range<DisplayPoint> {
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let position = map
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.clip_point(position, Bias::Left)
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.to_offset(map, Bias::Left);
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let (range, _) = map.buffer_snapshot.surrounding_word(position);
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let start = range
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.start
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.to_point(&map.buffer_snapshot)
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.to_display_point(map);
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let end = range
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.end
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.to_point(&map.buffer_snapshot)
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.to_display_point(map);
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start..end
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}
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pub fn split_display_range_by_lines(
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map: &DisplaySnapshot,
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range: Range<DisplayPoint>,
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) -> Vec<Range<DisplayPoint>> {
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let mut result = Vec::new();
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let mut start = range.start;
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// Loop over all the covered rows until the one containing the range end
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for row in range.start.row()..range.end.row() {
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let row_end_column = map.line_len(row);
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let end = map.clip_point(DisplayPoint::new(row, row_end_column), Bias::Left);
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if start != end {
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result.push(start..end);
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}
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start = map.clip_point(DisplayPoint::new(row + 1, 0), Bias::Left);
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}
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// Add the final range from the start of the last end to the original range end.
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result.push(start..range.end);
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result
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use crate::{
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display_map::Inlay, test::marked_display_snapshot, Buffer, DisplayMap, ExcerptRange,
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InlayId, MultiBuffer,
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};
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use settings::SettingsStore;
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use util::post_inc;
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#[gpui::test]
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fn test_previous_word_start(cx: &mut gpui::AppContext) {
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init_test(cx);
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fn assert(marked_text: &str, cx: &mut gpui::AppContext) {
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let (snapshot, display_points) = marked_display_snapshot(marked_text, cx);
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assert_eq!(
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previous_word_start(&snapshot, display_points[1]),
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display_points[0]
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);
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}
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assert("\nˇ ˇlorem", cx);
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assert("ˇ\nˇ lorem", cx);
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assert(" ˇloremˇ", cx);
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assert("ˇ ˇlorem", cx);
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assert(" ˇlorˇem", cx);
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assert("\nlorem\nˇ ˇipsum", cx);
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assert("\n\nˇ\nˇ", cx);
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assert(" ˇlorem ˇipsum", cx);
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assert("loremˇ-ˇipsum", cx);
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assert("loremˇ-#$@ˇipsum", cx);
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assert("ˇlorem_ˇipsum", cx);
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assert(" ˇdefγˇ", cx);
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assert(" ˇbcΔˇ", cx);
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assert(" abˇ——ˇcd", cx);
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}
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#[gpui::test]
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fn test_previous_subword_start(cx: &mut gpui::AppContext) {
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init_test(cx);
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fn assert(marked_text: &str, cx: &mut gpui::AppContext) {
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let (snapshot, display_points) = marked_display_snapshot(marked_text, cx);
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assert_eq!(
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previous_subword_start(&snapshot, display_points[1]),
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display_points[0]
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);
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}
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// Subword boundaries are respected
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assert("lorem_ˇipˇsum", cx);
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assert("lorem_ˇipsumˇ", cx);
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assert("ˇlorem_ˇipsum", cx);
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assert("lorem_ˇipsum_ˇdolor", cx);
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assert("loremˇIpˇsum", cx);
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assert("loremˇIpsumˇ", cx);
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// Word boundaries are still respected
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assert("\nˇ ˇlorem", cx);
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assert(" ˇloremˇ", cx);
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assert(" ˇlorˇem", cx);
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assert("\nlorem\nˇ ˇipsum", cx);
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assert("\n\nˇ\nˇ", cx);
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assert(" ˇlorem ˇipsum", cx);
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assert("loremˇ-ˇipsum", cx);
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assert("loremˇ-#$@ˇipsum", cx);
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assert(" ˇdefγˇ", cx);
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assert(" bcˇΔˇ", cx);
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assert(" ˇbcδˇ", cx);
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assert(" abˇ——ˇcd", cx);
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}
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#[gpui::test]
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fn test_find_preceding_boundary(cx: &mut gpui::AppContext) {
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init_test(cx);
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fn assert(
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marked_text: &str,
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cx: &mut gpui::AppContext,
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is_boundary: impl FnMut(char, char) -> bool,
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) {
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let (snapshot, display_points) = marked_display_snapshot(marked_text, cx);
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assert_eq!(
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find_preceding_boundary(
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&snapshot,
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display_points[1],
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FindRange::MultiLine,
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is_boundary
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),
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display_points[0]
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);
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}
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|
|
assert("abcˇdef\ngh\nijˇk", cx, |left, right| {
|
|
left == 'c' && right == 'd'
|
|
});
|
|
assert("abcdef\nˇgh\nijˇk", cx, |left, right| {
|
|
left == '\n' && right == 'g'
|
|
});
|
|
let mut line_count = 0;
|
|
assert("abcdef\nˇgh\nijˇk", cx, |left, _| {
|
|
if left == '\n' {
|
|
line_count += 1;
|
|
line_count == 2
|
|
} else {
|
|
false
|
|
}
|
|
});
|
|
}
|
|
|
|
#[gpui::test]
|
|
fn test_find_preceding_boundary_with_inlays(cx: &mut gpui::AppContext) {
|
|
init_test(cx);
|
|
|
|
let input_text = "abcdefghijklmnopqrstuvwxys";
|
|
let family_id = cx
|
|
.font_cache()
|
|
.load_family(&["Helvetica"], &Default::default())
|
|
.unwrap();
|
|
let font_id = cx
|
|
.font_cache()
|
|
.select_font(family_id, &Default::default())
|
|
.unwrap();
|
|
let font_size = 14.0;
|
|
let buffer = MultiBuffer::build_simple(input_text, cx);
|
|
let buffer_snapshot = buffer.read(cx).snapshot(cx);
|
|
let display_map =
|
|
cx.add_model(|cx| DisplayMap::new(buffer, font_id, font_size, None, 1, 1, cx));
|
|
|
|
// add all kinds of inlays between two word boundaries: we should be able to cross them all, when looking for another boundary
|
|
let mut id = 0;
|
|
let inlays = (0..buffer_snapshot.len())
|
|
.map(|offset| {
|
|
[
|
|
Inlay {
|
|
id: InlayId::Suggestion(post_inc(&mut id)),
|
|
position: buffer_snapshot.anchor_at(offset, Bias::Left),
|
|
text: format!("test").into(),
|
|
},
|
|
Inlay {
|
|
id: InlayId::Suggestion(post_inc(&mut id)),
|
|
position: buffer_snapshot.anchor_at(offset, Bias::Right),
|
|
text: format!("test").into(),
|
|
},
|
|
Inlay {
|
|
id: InlayId::Hint(post_inc(&mut id)),
|
|
position: buffer_snapshot.anchor_at(offset, Bias::Left),
|
|
text: format!("test").into(),
|
|
},
|
|
Inlay {
|
|
id: InlayId::Hint(post_inc(&mut id)),
|
|
position: buffer_snapshot.anchor_at(offset, Bias::Right),
|
|
text: format!("test").into(),
|
|
},
|
|
]
|
|
})
|
|
.flatten()
|
|
.collect();
|
|
let snapshot = display_map.update(cx, |map, cx| {
|
|
map.splice_inlays(Vec::new(), inlays, cx);
|
|
map.snapshot(cx)
|
|
});
|
|
|
|
assert_eq!(
|
|
find_preceding_boundary(
|
|
&snapshot,
|
|
buffer_snapshot.len().to_display_point(&snapshot),
|
|
FindRange::MultiLine,
|
|
|left, _| left == 'e',
|
|
),
|
|
snapshot
|
|
.buffer_snapshot
|
|
.offset_to_point(5)
|
|
.to_display_point(&snapshot),
|
|
"Should not stop at inlays when looking for boundaries"
|
|
);
|
|
}
|
|
|
|
#[gpui::test]
|
|
fn test_next_word_end(cx: &mut gpui::AppContext) {
|
|
init_test(cx);
|
|
|
|
fn assert(marked_text: &str, cx: &mut gpui::AppContext) {
|
|
let (snapshot, display_points) = marked_display_snapshot(marked_text, cx);
|
|
assert_eq!(
|
|
next_word_end(&snapshot, display_points[0]),
|
|
display_points[1]
|
|
);
|
|
}
|
|
|
|
assert("\nˇ loremˇ", cx);
|
|
assert(" ˇloremˇ", cx);
|
|
assert(" lorˇemˇ", cx);
|
|
assert(" loremˇ ˇ\nipsum\n", cx);
|
|
assert("\nˇ\nˇ\n\n", cx);
|
|
assert("loremˇ ipsumˇ ", cx);
|
|
assert("loremˇ-ˇipsum", cx);
|
|
assert("loremˇ#$@-ˇipsum", cx);
|
|
assert("loremˇ_ipsumˇ", cx);
|
|
assert(" ˇbcΔˇ", cx);
|
|
assert(" abˇ——ˇcd", cx);
|
|
}
|
|
|
|
#[gpui::test]
|
|
fn test_next_subword_end(cx: &mut gpui::AppContext) {
|
|
init_test(cx);
|
|
|
|
fn assert(marked_text: &str, cx: &mut gpui::AppContext) {
|
|
let (snapshot, display_points) = marked_display_snapshot(marked_text, cx);
|
|
assert_eq!(
|
|
next_subword_end(&snapshot, display_points[0]),
|
|
display_points[1]
|
|
);
|
|
}
|
|
|
|
// Subword boundaries are respected
|
|
assert("loˇremˇ_ipsum", cx);
|
|
assert("ˇloremˇ_ipsum", cx);
|
|
assert("loremˇ_ipsumˇ", cx);
|
|
assert("loremˇ_ipsumˇ_dolor", cx);
|
|
assert("loˇremˇIpsum", cx);
|
|
assert("loremˇIpsumˇDolor", cx);
|
|
|
|
// Word boundaries are still respected
|
|
assert("\nˇ loremˇ", cx);
|
|
assert(" ˇloremˇ", cx);
|
|
assert(" lorˇemˇ", cx);
|
|
assert(" loremˇ ˇ\nipsum\n", cx);
|
|
assert("\nˇ\nˇ\n\n", cx);
|
|
assert("loremˇ ipsumˇ ", cx);
|
|
assert("loremˇ-ˇipsum", cx);
|
|
assert("loremˇ#$@-ˇipsum", cx);
|
|
assert("loremˇ_ipsumˇ", cx);
|
|
assert(" ˇbcˇΔ", cx);
|
|
assert(" abˇ——ˇcd", cx);
|
|
}
|
|
|
|
#[gpui::test]
|
|
fn test_find_boundary(cx: &mut gpui::AppContext) {
|
|
init_test(cx);
|
|
|
|
fn assert(
|
|
marked_text: &str,
|
|
cx: &mut gpui::AppContext,
|
|
is_boundary: impl FnMut(char, char) -> bool,
|
|
) {
|
|
let (snapshot, display_points) = marked_display_snapshot(marked_text, cx);
|
|
assert_eq!(
|
|
find_boundary(
|
|
&snapshot,
|
|
display_points[0],
|
|
FindRange::MultiLine,
|
|
is_boundary
|
|
),
|
|
display_points[1]
|
|
);
|
|
}
|
|
|
|
assert("abcˇdef\ngh\nijˇk", cx, |left, right| {
|
|
left == 'j' && right == 'k'
|
|
});
|
|
assert("abˇcdef\ngh\nˇijk", cx, |left, right| {
|
|
left == '\n' && right == 'i'
|
|
});
|
|
let mut line_count = 0;
|
|
assert("abcˇdef\ngh\nˇijk", cx, |left, _| {
|
|
if left == '\n' {
|
|
line_count += 1;
|
|
line_count == 2
|
|
} else {
|
|
false
|
|
}
|
|
});
|
|
}
|
|
|
|
#[gpui::test]
|
|
fn test_surrounding_word(cx: &mut gpui::AppContext) {
|
|
init_test(cx);
|
|
|
|
fn assert(marked_text: &str, cx: &mut gpui::AppContext) {
|
|
let (snapshot, display_points) = marked_display_snapshot(marked_text, cx);
|
|
assert_eq!(
|
|
surrounding_word(&snapshot, display_points[1]),
|
|
display_points[0]..display_points[2]
|
|
);
|
|
}
|
|
|
|
assert("ˇˇloremˇ ipsum", cx);
|
|
assert("ˇloˇremˇ ipsum", cx);
|
|
assert("ˇloremˇˇ ipsum", cx);
|
|
assert("loremˇ ˇ ˇipsum", cx);
|
|
assert("lorem\nˇˇˇ\nipsum", cx);
|
|
assert("lorem\nˇˇipsumˇ", cx);
|
|
assert("lorem,ˇˇ ˇipsum", cx);
|
|
assert("ˇloremˇˇ, ipsum", cx);
|
|
}
|
|
|
|
#[gpui::test]
|
|
fn test_move_up_and_down_with_excerpts(cx: &mut gpui::AppContext) {
|
|
init_test(cx);
|
|
|
|
let family_id = cx
|
|
.font_cache()
|
|
.load_family(&["Helvetica"], &Default::default())
|
|
.unwrap();
|
|
let font_id = cx
|
|
.font_cache()
|
|
.select_font(family_id, &Default::default())
|
|
.unwrap();
|
|
|
|
let buffer =
|
|
cx.add_model(|cx| Buffer::new(0, cx.model_id() as u64, "abc\ndefg\nhijkl\nmn"));
|
|
let multibuffer = cx.add_model(|cx| {
|
|
let mut multibuffer = MultiBuffer::new(0);
|
|
multibuffer.push_excerpts(
|
|
buffer.clone(),
|
|
[
|
|
ExcerptRange {
|
|
context: Point::new(0, 0)..Point::new(1, 4),
|
|
primary: None,
|
|
},
|
|
ExcerptRange {
|
|
context: Point::new(2, 0)..Point::new(3, 2),
|
|
primary: None,
|
|
},
|
|
],
|
|
cx,
|
|
);
|
|
multibuffer
|
|
});
|
|
let display_map =
|
|
cx.add_model(|cx| DisplayMap::new(multibuffer, font_id, 14.0, None, 2, 2, cx));
|
|
let snapshot = display_map.update(cx, |map, cx| map.snapshot(cx));
|
|
|
|
assert_eq!(snapshot.text(), "\n\nabc\ndefg\n\n\nhijkl\nmn");
|
|
|
|
// Can't move up into the first excerpt's header
|
|
assert_eq!(
|
|
up(
|
|
&snapshot,
|
|
DisplayPoint::new(2, 2),
|
|
SelectionGoal::Column(2),
|
|
false
|
|
),
|
|
(DisplayPoint::new(2, 0), SelectionGoal::Column(0)),
|
|
);
|
|
assert_eq!(
|
|
up(
|
|
&snapshot,
|
|
DisplayPoint::new(2, 0),
|
|
SelectionGoal::None,
|
|
false
|
|
),
|
|
(DisplayPoint::new(2, 0), SelectionGoal::Column(0)),
|
|
);
|
|
|
|
// Move up and down within first excerpt
|
|
assert_eq!(
|
|
up(
|
|
&snapshot,
|
|
DisplayPoint::new(3, 4),
|
|
SelectionGoal::Column(4),
|
|
false
|
|
),
|
|
(DisplayPoint::new(2, 3), SelectionGoal::Column(4)),
|
|
);
|
|
assert_eq!(
|
|
down(
|
|
&snapshot,
|
|
DisplayPoint::new(2, 3),
|
|
SelectionGoal::Column(4),
|
|
false
|
|
),
|
|
(DisplayPoint::new(3, 4), SelectionGoal::Column(4)),
|
|
);
|
|
|
|
// Move up and down across second excerpt's header
|
|
assert_eq!(
|
|
up(
|
|
&snapshot,
|
|
DisplayPoint::new(6, 5),
|
|
SelectionGoal::Column(5),
|
|
false
|
|
),
|
|
(DisplayPoint::new(3, 4), SelectionGoal::Column(5)),
|
|
);
|
|
assert_eq!(
|
|
down(
|
|
&snapshot,
|
|
DisplayPoint::new(3, 4),
|
|
SelectionGoal::Column(5),
|
|
false
|
|
),
|
|
(DisplayPoint::new(6, 5), SelectionGoal::Column(5)),
|
|
);
|
|
|
|
// Can't move down off the end
|
|
assert_eq!(
|
|
down(
|
|
&snapshot,
|
|
DisplayPoint::new(7, 0),
|
|
SelectionGoal::Column(0),
|
|
false
|
|
),
|
|
(DisplayPoint::new(7, 2), SelectionGoal::Column(2)),
|
|
);
|
|
assert_eq!(
|
|
down(
|
|
&snapshot,
|
|
DisplayPoint::new(7, 2),
|
|
SelectionGoal::Column(2),
|
|
false
|
|
),
|
|
(DisplayPoint::new(7, 2), SelectionGoal::Column(2)),
|
|
);
|
|
}
|
|
|
|
fn init_test(cx: &mut gpui::AppContext) {
|
|
cx.set_global(SettingsStore::test(cx));
|
|
theme::init((), cx);
|
|
language::init(cx);
|
|
crate::init(cx);
|
|
}
|
|
}
|