143 lines
4.5 KiB
Rust
143 lines
4.5 KiB
Rust
use gpui::ViewContext;
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use crate::{Editor, RangeToAnchorExt};
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enum MatchingBracketHighlight {}
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pub fn refresh_matching_bracket_highlights(editor: &mut Editor, cx: &mut ViewContext<Editor>) {
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editor.clear_background_highlights::<MatchingBracketHighlight>(cx);
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let newest_selection = editor.selections.newest::<usize>(cx);
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// Don't highlight brackets if the selection isn't empty
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if !newest_selection.is_empty() {
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return;
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}
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let head = newest_selection.head();
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let snapshot = editor.snapshot(cx);
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if let Some((opening_range, closing_range)) = snapshot
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.buffer_snapshot
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.enclosing_bracket_ranges(head..head)
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{
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editor.highlight_background::<MatchingBracketHighlight>(
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vec![
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opening_range.to_anchors(&snapshot.buffer_snapshot),
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closing_range.to_anchors(&snapshot.buffer_snapshot),
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],
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|theme| theme.editor.document_highlight_read_background,
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cx,
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)
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}
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}
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#[cfg(test)]
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mod tests {
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use indoc::indoc;
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use language::{BracketPair, Language, LanguageConfig};
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use crate::test::EditorLspTestContext;
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use super::*;
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#[gpui::test]
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async fn test_matching_bracket_highlights(cx: &mut gpui::TestAppContext) {
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let mut cx = EditorLspTestContext::new(
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Language::new(
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LanguageConfig {
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name: "Rust".into(),
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path_suffixes: vec!["rs".to_string()],
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brackets: vec![
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BracketPair {
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start: "{".to_string(),
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end: "}".to_string(),
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close: false,
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newline: true,
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},
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BracketPair {
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start: "(".to_string(),
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end: ")".to_string(),
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close: false,
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newline: true,
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},
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],
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..Default::default()
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},
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Some(tree_sitter_rust::language()),
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)
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.with_brackets_query(indoc! {r#"
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("{" @open "}" @close)
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("(" @open ")" @close)
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"#})
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.unwrap(),
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Default::default(),
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cx,
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)
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.await;
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// positioning cursor inside bracket highlights both
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cx.set_state_by(
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vec!['|'.into()],
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indoc! {r#"
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pub fn test("Test |argument") {
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another_test(1, 2, 3);
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}"#},
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);
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cx.assert_editor_background_highlights::<MatchingBracketHighlight>(indoc! {r#"
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pub fn test[(]"Test argument"[)] {
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another_test(1, 2, 3);
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}"#});
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cx.set_state_by(
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vec!['|'.into()],
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indoc! {r#"
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pub fn test("Test argument") {
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another_test(1, |2, 3);
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}"#},
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);
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cx.assert_editor_background_highlights::<MatchingBracketHighlight>(indoc! {r#"
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pub fn test("Test argument") {
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another_test[(]1, 2, 3[)];
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}"#});
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cx.set_state_by(
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vec!['|'.into()],
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indoc! {r#"
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pub fn test("Test argument") {
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another|_test(1, 2, 3);
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}"#},
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);
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cx.assert_editor_background_highlights::<MatchingBracketHighlight>(indoc! {r#"
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pub fn test("Test argument") [{]
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another_test(1, 2, 3);
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[}]"#});
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// positioning outside of brackets removes highlight
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cx.set_state_by(
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vec!['|'.into()],
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indoc! {r#"
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pub f|n test("Test argument") {
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another_test(1, 2, 3);
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}"#},
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);
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cx.assert_editor_background_highlights::<MatchingBracketHighlight>(indoc! {r#"
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pub fn test("Test argument") {
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another_test(1, 2, 3);
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}"#});
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// non empty selection dismisses highlight
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// positioning outside of brackets removes highlight
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cx.set_state_by(
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vec![('<', '>').into()],
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indoc! {r#"
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pub fn test("Te<st arg>ument") {
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another_test(1, 2, 3);
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}"#},
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);
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cx.assert_editor_background_highlights::<MatchingBracketHighlight>(indoc! {r#"
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pub fn test("Test argument") {
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another_test(1, 2, 3);
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}"#});
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}
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}
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