зеркало из
https://github.com/glebtv/tui-textarea.git
synced 2026-08-28 11:36:17 +03:00
43afdc5ce1
* docs: integrate upstream PR #116 * feat: integrate upstream PR #113 * chore: add portable-atomic for viewport atomics (upstream PR #111) * fix(examples): integrate upstream PR #100 * fix(word): integrate upstream PR #98 * fix(widget): handle wide unicode char widths in horizontal scroll (upstream PR #94) * feat(highlight): integrate upstream PR #93 * chore(release): prepare v0.8.0 docs and CI-clean merged upstream updates * docs(license): rename LICENSE.txt to LICENSE and fix header capitalization
1710 строки
41 KiB
Rust
1710 строки
41 KiB
Rust
use std::cmp;
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use std::fmt::Debug;
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use tui_textarea::{CursorMove, TextArea};
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fn assert_undo_redo<T: Debug>(
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before_pos: (usize, usize),
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before_buf: &[&str],
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after_buf: &[&str],
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t: &mut TextArea<'_>,
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context: T,
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) {
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let after_pos = t.cursor();
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let modified = before_buf != after_buf;
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assert_eq!(t.cursor(), after_pos, "pos before undo: {context:?}");
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assert_eq!(t.undo(), modified, "undo modification: {context:?}");
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assert_eq!(t.lines(), before_buf, "buf after undo: {context:?}");
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assert_eq!(t.cursor(), before_pos, "pos after undo: {context:?}");
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assert_eq!(t.redo(), modified, "redo modification: {context:?}");
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assert_eq!(t.lines(), after_buf, "buf after redo: {context:?}");
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assert_eq!(t.cursor(), after_pos, "pos after redo: {context:?}");
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}
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fn assert_no_undo_redo<T: Debug>(t: &mut TextArea<'_>, context: T) {
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let pos = t.cursor();
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let buf: Vec<_> = t.lines().to_vec();
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assert!(!t.undo(), "undo modification: {context:?}");
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assert_eq!(t.lines(), &buf, "buf after undo: {context:?}");
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assert_eq!(t.cursor(), pos, "pos after undo: {context:?}");
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assert!(!t.redo(), "redo modification: {context:?}");
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assert_eq!(t.lines(), &buf, "buf after redo: {context:?}");
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assert_eq!(t.cursor(), pos, "pos after redo: {context:?}");
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}
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#[test]
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fn test_insert_soft_tab() {
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for test in [
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("", 0, " ", 4),
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("a", 1, "a ", 3),
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("abcd", 4, "abcd ", 4),
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("a", 0, " a", 4),
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("ab", 1, "a b", 3),
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("abcdefgh", 4, "abcd efgh", 4),
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("あ", 1, "あ ", 2),
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("🐶", 1, "🐶 ", 2),
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("あ", 0, " あ", 4),
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("あい", 1, "あ い", 2),
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] {
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let (input, col, expected, width) = test;
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let mut t = TextArea::from([input.to_string()]);
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t.move_cursor(CursorMove::Jump(0, col));
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assert!(t.insert_tab(), "{test:?}");
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assert_eq!(t.lines(), [expected], "{test:?}");
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assert_eq!(t.cursor(), (0, col as usize + width), "{test:?}");
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assert_undo_redo((0, col as _), &[input], &[expected], &mut t, test);
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}
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}
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#[test]
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fn test_insert_hard_tab() {
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let mut t = TextArea::default();
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t.set_hard_tab_indent(true);
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assert!(t.insert_tab());
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assert_eq!(t.cursor(), (0, 1));
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assert_undo_redo((0, 0), &[""], &["\t"], &mut t, "");
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let mut t = TextArea::default();
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t.set_hard_tab_indent(true);
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t.set_tab_length(0);
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t.insert_tab();
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assert!(!t.insert_tab());
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assert_eq!(t.lines(), [""]);
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assert_eq!(t.cursor(), (0, 0));
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}
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#[test]
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fn test_insert_char() {
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let tests = [
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(0, 'x', &["xab"][..]),
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(1, 'x', &["axb"][..]),
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(2, 'x', &["abx"][..]),
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(1, 'あ', &["aあb"][..]),
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(1, '\n', &["a", "b"][..]),
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];
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for test in tests {
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let (col, ch, want) = test;
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let mut t = TextArea::from(["ab"]);
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t.move_cursor(CursorMove::Jump(0, col));
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t.insert_char(ch);
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assert_eq!(t.lines(), want, "{test:?}");
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let pos = if ch == '\n' {
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(1, 0)
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} else {
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(0, col as usize + 1)
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};
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assert_eq!(t.cursor(), pos, "{test:?}");
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assert_undo_redo((0, col as _), &["ab"], want, &mut t, test);
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}
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}
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#[test]
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fn test_insert_str_one_line() {
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for i in 0..="ab".len() {
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let mut t = TextArea::from(["ab"]);
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t.move_cursor(CursorMove::Jump(0, i as u16));
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assert!(t.insert_str("x"), "{i}");
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let mut want = "ab".to_string();
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want.insert(i, 'x');
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let want = want.as_str();
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assert_eq!(t.lines(), [want], "{i}");
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assert_eq!(t.cursor(), (0, i + 1));
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assert_undo_redo((0, i), &["ab"], &[want], &mut t, i);
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}
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let mut t = TextArea::default();
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assert!(t.insert_str("x"));
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assert_eq!(t.cursor(), (0, 1));
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assert_undo_redo((0, 0), &[""], &["x"], &mut t, "");
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}
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#[test]
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fn test_insert_str_empty_line() {
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let mut t = TextArea::from(["ab"]);
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assert!(!t.insert_str(""));
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assert_eq!(t.lines(), ["ab"]);
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assert_eq!(t.cursor(), (0, 0));
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assert_no_undo_redo(&mut t, "");
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}
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#[test]
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fn test_insert_str_multiple_lines() {
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#[rustfmt::skip]
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let tests = [
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// Positions
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(
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// Text before edit
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&[
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"ab",
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"cd",
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"ef",
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][..],
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// (row, offset) position before edit
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(0, 0),
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// String to be inserted
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"x\ny",
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// (row, offset) position after edit
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(1, 1),
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// Text after edit
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&[
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"x",
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"yab",
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"cd",
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"ef",
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][..],
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),
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(
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&[
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"ab",
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"cd",
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"ef",
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][..],
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(0, 1),
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"x\ny",
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(1, 1),
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&[
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"ax",
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"yb",
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"cd",
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"ef",
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][..],
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),
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(
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&[
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"ab",
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"cd",
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"ef",
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][..],
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(0, 2),
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"x\ny",
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(1, 1),
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&[
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"abx",
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"y",
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"cd",
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"ef",
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][..],
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),
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(
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&[
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"ab",
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"cd",
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"ef",
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][..],
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(1, 0),
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"x\ny",
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(2, 1),
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&[
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"ab",
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"x",
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"ycd",
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"ef",
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][..],
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),
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(
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&[
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"ab",
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"cd",
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"ef",
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][..],
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(1, 1),
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"x\ny",
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(2, 1),
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&[
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"ab",
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"cx",
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"yd",
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"ef",
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][..],
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),
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(
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&[
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"ab",
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"cd",
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"ef",
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][..],
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(1, 2),
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"x\ny",
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(2, 1),
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&[
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"ab",
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"cdx",
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"y",
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"ef",
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][..],
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),
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(
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&[
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"ab",
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"cd",
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"ef",
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][..],
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(2, 0),
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"x\ny",
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(3, 1),
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&[
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"ab",
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"cd",
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"x",
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"yef",
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][..],
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),
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(
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&[
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"ab",
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"cd",
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"ef",
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][..],
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(2, 1),
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"x\ny",
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(3, 1),
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&[
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"ab",
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"cd",
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"ex",
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"yf",
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][..],
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),
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(
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&[
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"ab",
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"cd",
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"ef",
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][..],
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(2, 2),
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"x\ny",
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(3, 1),
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&[
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"ab",
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"cd",
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"efx",
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"y",
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][..],
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),
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// More than 2 lines
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(
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&[
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"ab",
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"cd",
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"ef",
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][..],
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(1, 1),
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"x\ny\nz\nw",
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(4, 1),
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&[
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"ab",
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"cx",
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"y",
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"z",
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"wd",
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"ef",
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][..],
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),
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// Newline at end of line
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(
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&[
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"ab",
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"cd",
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"ef",
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][..],
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(1, 1),
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"x\ny\n",
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(3, 0),
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&[
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"ab",
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"cx",
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"y",
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"d",
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"ef",
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][..],
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),
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// Empty lines
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(
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&[
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"",
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"",
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"",
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][..],
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(0, 0),
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"x\ny\nz",
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(2, 1),
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&[
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"x",
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"y",
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"z",
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"",
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"",
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][..],
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),
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(
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&[
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"",
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"",
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"",
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][..],
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(1, 0),
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"x\ny\nz",
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(3, 1),
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&[
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"",
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"x",
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"y",
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"z",
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"",
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][..],
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),
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(
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&[
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"",
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"",
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"",
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][..],
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(2, 0),
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"x\ny\nz",
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(4, 1),
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&[
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"",
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"",
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"x",
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"y",
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"z",
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][..],
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),
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// Empty buffer
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(
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&[
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"",
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][..],
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(0, 0),
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"x\ny\nz",
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(2, 1),
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&[
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"x",
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"y",
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"z",
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][..],
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),
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// Insert empty lines
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(
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&[
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"ab",
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"cd",
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"ef",
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][..],
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(0, 0),
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"\n\n\n",
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(3, 0),
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&[
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"",
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"",
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"",
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"ab",
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"cd",
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"ef",
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][..],
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),
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(
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&[
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"ab",
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"cd",
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"ef",
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][..],
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(1, 0),
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"\n\n\n",
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(4, 0),
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&[
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"ab",
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"",
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"",
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"",
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"cd",
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"ef",
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][..],
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),
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(
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&[
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"ab",
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"cd",
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"ef",
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][..],
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(1, 1),
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"\n\n\n",
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(4, 0),
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&[
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"ab",
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"c",
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"",
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"",
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"d",
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"ef",
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][..],
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),
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(
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&[
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"ab",
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"cd",
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"ef",
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][..],
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(1, 2),
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"\n\n\n",
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(4, 0),
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&[
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"ab",
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"cd",
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"",
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"",
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"",
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"ef",
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][..],
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),
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(
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&[
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"ab",
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"cd",
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"ef",
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][..],
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(2, 2),
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"\n\n\n",
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(5, 0),
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&[
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"ab",
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"cd",
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"ef",
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"",
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"",
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"",
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][..],
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),
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// Multi-byte characters
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(
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&[
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"🐶🐱",
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"🐮🐰",
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"🐧🐭",
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][..],
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(0, 0),
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"🐷\n🐼\n🐴",
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(2, 1),
|
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&[
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"🐷",
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"🐼",
|
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"🐴🐶🐱",
|
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"🐮🐰",
|
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"🐧🐭",
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][..],
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),
|
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(
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&[
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"🐶🐱",
|
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"🐮🐰",
|
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"🐧🐭",
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][..],
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(0, 2),
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"🐷\n🐼\n🐴",
|
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(2, 1),
|
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&[
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"🐶🐱🐷",
|
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"🐼",
|
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"🐴",
|
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"🐮🐰",
|
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"🐧🐭",
|
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][..],
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),
|
|
(
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&[
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"🐶🐱",
|
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"🐮🐰",
|
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"🐧🐭",
|
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][..],
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(1, 0),
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"🐷\n🐼\n🐴",
|
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(3, 1),
|
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&[
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"🐶🐱",
|
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"🐷",
|
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"🐼",
|
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"🐴🐮🐰",
|
|
"🐧🐭",
|
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][..],
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),
|
|
(
|
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&[
|
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"🐶🐱",
|
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"🐮🐰",
|
|
"🐧🐭",
|
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][..],
|
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(1, 1),
|
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"🐷\n🐼\n🐴",
|
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(3, 1),
|
|
&[
|
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"🐶🐱",
|
|
"🐮🐷",
|
|
"🐼",
|
|
"🐴🐰",
|
|
"🐧🐭",
|
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][..],
|
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),
|
|
(
|
|
&[
|
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"🐶🐱",
|
|
"🐮🐰",
|
|
"🐧🐭",
|
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][..],
|
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(2, 2),
|
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"🐷\n🐼\n🐴",
|
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(4, 1),
|
|
&[
|
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"🐶🐱",
|
|
"🐮🐰",
|
|
"🐧🐭🐷",
|
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"🐼",
|
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"🐴",
|
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][..],
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),
|
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// Handle \r\n as newlines
|
|
(
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&[
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"ab",
|
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"cd",
|
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"ef",
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][..],
|
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(1, 1),
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"x\r\ny\r\nz",
|
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(3, 1),
|
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&[
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"ab",
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"cx",
|
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"y",
|
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"zd",
|
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"ef",
|
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][..],
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),
|
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(
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&[
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"ab",
|
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"cd",
|
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"ef",
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][..],
|
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(1, 1),
|
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"x\ny\r\nz",
|
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(3, 1),
|
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&[
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"ab",
|
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"cx",
|
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"y",
|
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"zd",
|
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"ef",
|
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][..],
|
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),
|
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];
|
|
|
|
for test in tests {
|
|
let (before, before_pos, input, after_pos, expected) = test;
|
|
|
|
let mut t = TextArea::from(before.iter().map(|s| s.to_string()));
|
|
let (row, col) = before_pos;
|
|
t.move_cursor(CursorMove::Jump(row as _, col as _));
|
|
|
|
assert!(t.insert_str(input), "{test:?}");
|
|
assert_eq!(t.lines(), expected, "{test:?}");
|
|
assert_eq!(t.cursor(), after_pos, "{test:?}");
|
|
|
|
assert_undo_redo(before_pos, before, expected, &mut t, test);
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn test_delete_str_nothing() {
|
|
for i in 0..="ab".len() {
|
|
let mut t = TextArea::from(["ab"]);
|
|
assert!(!t.delete_str(0), "{i}");
|
|
assert_eq!(t.cursor(), (0, 0));
|
|
}
|
|
let mut t = TextArea::default();
|
|
assert!(!t.delete_str(0));
|
|
assert_eq!(t.cursor(), (0, 0));
|
|
}
|
|
|
|
#[test]
|
|
fn test_delete_str_within_line() {
|
|
for i in 0.."abc".len() {
|
|
for j in 1..="abc".len() - i {
|
|
let mut t = TextArea::from(["abc"]);
|
|
t.move_cursor(CursorMove::Jump(0, i as _));
|
|
assert!(t.delete_str(j), "at {i}, size={j}");
|
|
|
|
let mut want = "abc".to_string();
|
|
want.drain(i..i + j);
|
|
let want = want.as_str();
|
|
assert_eq!(t.lines(), [want], "at {i}, size={j}");
|
|
assert_eq!(t.cursor(), (0, i));
|
|
|
|
// delete_str deletes string as if moving cursor at the end of the deleted string
|
|
assert_undo_redo((0, i + j), &["abc"], &[want], &mut t, (i, j));
|
|
}
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn test_delete_str_multiple_lines() {
|
|
#[rustfmt::skip]
|
|
let tests = [
|
|
// Length
|
|
(
|
|
// Text before edit
|
|
&[
|
|
"ab",
|
|
"cd",
|
|
"ef",
|
|
][..],
|
|
// (row, offset) cursor position
|
|
(0, 0),
|
|
// Chars to be deleted
|
|
3,
|
|
// Deleted text
|
|
"ab\n",
|
|
// Text after edit
|
|
&[
|
|
"cd",
|
|
"ef",
|
|
][..],
|
|
),
|
|
(
|
|
&[
|
|
"ab",
|
|
"cd",
|
|
"ef",
|
|
][..],
|
|
(0, 0),
|
|
4,
|
|
"ab\nc",
|
|
&[
|
|
"d",
|
|
"ef",
|
|
][..],
|
|
),
|
|
(
|
|
&[
|
|
"ab",
|
|
"cd",
|
|
"ef",
|
|
][..],
|
|
(0, 0),
|
|
5,
|
|
"ab\ncd",
|
|
&[
|
|
"",
|
|
"ef",
|
|
][..],
|
|
),
|
|
(
|
|
&[
|
|
"ab",
|
|
"cd",
|
|
"ef",
|
|
][..],
|
|
(0, 0),
|
|
6,
|
|
"ab\ncd\n",
|
|
&[
|
|
"ef",
|
|
][..],
|
|
),
|
|
(
|
|
&[
|
|
"ab",
|
|
"cd",
|
|
"ef",
|
|
][..],
|
|
(0, 0),
|
|
7,
|
|
"ab\ncd\ne",
|
|
&[
|
|
"f",
|
|
][..],
|
|
),
|
|
(
|
|
&[
|
|
"ab",
|
|
"cd",
|
|
"ef",
|
|
][..],
|
|
(0, 0),
|
|
8,
|
|
"ab\ncd\nef",
|
|
&[
|
|
"",
|
|
][..],
|
|
),
|
|
(
|
|
&[
|
|
"ab",
|
|
"cd",
|
|
"ef",
|
|
][..],
|
|
(0, 0),
|
|
9,
|
|
"ab\ncd\nef",
|
|
&[
|
|
"",
|
|
][..],
|
|
),
|
|
// Positions
|
|
(
|
|
&[
|
|
"ab",
|
|
"cd",
|
|
"ef",
|
|
][..],
|
|
(0, 1),
|
|
3,
|
|
"b\nc",
|
|
&[
|
|
"ad",
|
|
"ef",
|
|
][..],
|
|
),
|
|
(
|
|
&[
|
|
"ab",
|
|
"cd",
|
|
"ef",
|
|
][..],
|
|
(0, 2),
|
|
4,
|
|
"\ncd\n",
|
|
&[
|
|
"abef",
|
|
][..],
|
|
),
|
|
(
|
|
&[
|
|
"ab",
|
|
"cd",
|
|
"ef",
|
|
][..],
|
|
(1, 0),
|
|
4,
|
|
"cd\ne",
|
|
&[
|
|
"ab",
|
|
"f",
|
|
][..],
|
|
),
|
|
(
|
|
&[
|
|
"ab",
|
|
"cd",
|
|
"ef",
|
|
][..],
|
|
(2, 0),
|
|
3,
|
|
"ef",
|
|
&[
|
|
"ab",
|
|
"cd",
|
|
"",
|
|
][..],
|
|
),
|
|
(
|
|
&[
|
|
"ab",
|
|
"cd",
|
|
"ef",
|
|
][..],
|
|
(2, 1),
|
|
2,
|
|
"f",
|
|
&[
|
|
"ab",
|
|
"cd",
|
|
"e",
|
|
][..],
|
|
),
|
|
(
|
|
&[
|
|
"ab",
|
|
"cd",
|
|
"ef",
|
|
][..],
|
|
(2, 2),
|
|
1,
|
|
"",
|
|
&[
|
|
"ab",
|
|
"cd",
|
|
"ef",
|
|
][..],
|
|
),
|
|
// Empty lines
|
|
(
|
|
&[
|
|
"",
|
|
"",
|
|
"",
|
|
][..],
|
|
(0, 0),
|
|
1,
|
|
"\n",
|
|
&[
|
|
"",
|
|
"",
|
|
][..],
|
|
),
|
|
(
|
|
&[
|
|
"",
|
|
"",
|
|
"",
|
|
][..],
|
|
(0, 0),
|
|
2,
|
|
"\n\n",
|
|
&[
|
|
"",
|
|
][..],
|
|
),
|
|
(
|
|
&[
|
|
"",
|
|
"",
|
|
"",
|
|
][..],
|
|
(0, 0),
|
|
3,
|
|
"\n\n",
|
|
&[
|
|
"",
|
|
][..],
|
|
),
|
|
(
|
|
&[
|
|
"",
|
|
"",
|
|
"",
|
|
][..],
|
|
(1, 0),
|
|
1,
|
|
"\n",
|
|
&[
|
|
"",
|
|
"",
|
|
][..],
|
|
),
|
|
(
|
|
&[
|
|
"",
|
|
"",
|
|
"",
|
|
][..],
|
|
(2, 0),
|
|
1,
|
|
"",
|
|
&[
|
|
"",
|
|
"",
|
|
"",
|
|
][..],
|
|
),
|
|
// Empty buffer
|
|
(
|
|
&[
|
|
"",
|
|
][..],
|
|
(0, 0),
|
|
1,
|
|
"",
|
|
&[
|
|
"",
|
|
][..],
|
|
),
|
|
];
|
|
|
|
for test in tests {
|
|
let (before, (row, col), chars, deleted, after) = test;
|
|
|
|
let mut t = TextArea::from(before.iter().map(|s| s.to_string()));
|
|
t.move_cursor(CursorMove::Jump(row as _, col as _));
|
|
|
|
assert!(t.delete_str(chars), "{test:?}");
|
|
assert_eq!(t.cursor(), (row, col), "{test:?}");
|
|
assert_eq!(t.lines(), after, "{test:?}");
|
|
assert_eq!(t.yank_text(), deleted, "{test:?}");
|
|
|
|
let pos = t.cursor();
|
|
assert!(t.undo(), "{test:?}");
|
|
assert_eq!(t.lines(), before, "{test:?}");
|
|
assert!(t.redo(), "{test:?}");
|
|
assert_eq!(t.lines(), after, "{test:?}");
|
|
assert_eq!(t.cursor(), pos, "{test:?}");
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn test_copy_single_line() {
|
|
for i in 0..="abc".len() {
|
|
for j in i.."abc".len() {
|
|
let mut t = TextArea::from(["abc"]);
|
|
|
|
t.move_cursor(CursorMove::Jump(0, i as u16));
|
|
t.start_selection();
|
|
t.move_cursor(CursorMove::Jump(0, j as u16));
|
|
t.copy();
|
|
|
|
assert_eq!(t.yank_text(), &"abc"[i..j], "from {i} to {j}");
|
|
assert_eq!(t.lines(), ["abc"], "from {i} to {j}");
|
|
|
|
assert_no_undo_redo(&mut t, (i, j));
|
|
}
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn test_cut_single_line() {
|
|
for i in 0.."abc".len() {
|
|
for j in i + 1.."abc".len() {
|
|
let mut t = TextArea::from(["abc"]);
|
|
|
|
t.move_cursor(CursorMove::Jump(0, i as u16));
|
|
t.start_selection();
|
|
t.move_cursor(CursorMove::Jump(0, j as u16));
|
|
t.cut();
|
|
|
|
assert_eq!(t.yank_text(), &"abc"[i..j], "from {i} to {j}");
|
|
|
|
let mut after = "abc".to_string();
|
|
after.replace_range(i..j, "");
|
|
let after = after.as_str();
|
|
assert_eq!(t.lines(), [after], "from {i} to {j}");
|
|
assert_eq!(t.cursor(), (0, i));
|
|
assert_undo_redo((0, j), &["abc"], &[after], &mut t, (i, j));
|
|
|
|
t.paste();
|
|
assert_eq!(t.lines(), ["abc"], "from {i} to {j}");
|
|
assert_undo_redo((0, i), &[after], &["abc"], &mut t, (i, j));
|
|
}
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn test_copy_cut_empty() {
|
|
for row in 0..=2 {
|
|
for col in 0..=2 {
|
|
let check = |f: fn(&mut TextArea<'_>)| {
|
|
let mut t = TextArea::from(["ab", "cd", "ef"]);
|
|
t.move_cursor(CursorMove::Jump(row, col));
|
|
t.start_selection();
|
|
t.move_cursor(CursorMove::Jump(row, col));
|
|
f(&mut t);
|
|
assert!(!t.is_selecting());
|
|
assert_eq!(t.cursor(), (row as _, col as _));
|
|
assert_eq!(t.lines(), ["ab", "cd", "ef"]);
|
|
assert_no_undo_redo(&mut t, "");
|
|
};
|
|
|
|
check(|t| {
|
|
assert!(!t.cut());
|
|
});
|
|
check(|t| t.copy());
|
|
}
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn test_copy_cut_paste_multi_lines() {
|
|
#[rustfmt::skip]
|
|
let tests = [
|
|
(
|
|
// Initial text
|
|
&[
|
|
"ab",
|
|
"cd",
|
|
"ef",
|
|
][..],
|
|
// Start position of selection
|
|
(0, 0),
|
|
// End position of selection
|
|
(1, 0),
|
|
// Expected yanked text
|
|
"ab\n",
|
|
// Text buffer after cut
|
|
&[
|
|
"cd",
|
|
"ef",
|
|
][..]
|
|
),
|
|
(
|
|
&[
|
|
"ab",
|
|
"cd",
|
|
"ef",
|
|
][..],
|
|
(0, 0),
|
|
(1, 1),
|
|
"ab\nc",
|
|
&[
|
|
"d",
|
|
"ef",
|
|
][..]
|
|
),
|
|
(
|
|
&[
|
|
"ab",
|
|
"cd",
|
|
"ef",
|
|
][..],
|
|
(0, 0),
|
|
(1, 2),
|
|
"ab\ncd",
|
|
&[
|
|
"",
|
|
"ef",
|
|
][..]
|
|
),
|
|
(
|
|
&[
|
|
"ab",
|
|
"cd",
|
|
"ef",
|
|
][..],
|
|
(0, 0),
|
|
(2, 0),
|
|
"ab\ncd\n",
|
|
&[
|
|
"ef",
|
|
][..]
|
|
),
|
|
(
|
|
&[
|
|
"ab",
|
|
"cd",
|
|
"ef",
|
|
][..],
|
|
(0, 0),
|
|
(2, 1),
|
|
"ab\ncd\ne",
|
|
&[
|
|
"f",
|
|
][..]
|
|
),
|
|
(
|
|
&[
|
|
"ab",
|
|
"cd",
|
|
"ef",
|
|
][..],
|
|
(0, 0),
|
|
(2, 2),
|
|
"ab\ncd\nef",
|
|
&[
|
|
"",
|
|
][..]
|
|
),
|
|
(
|
|
&[
|
|
"ab",
|
|
"cd",
|
|
"ef",
|
|
][..],
|
|
(0, 1),
|
|
(1, 1),
|
|
"b\nc",
|
|
&[
|
|
"ad",
|
|
"ef",
|
|
][..]
|
|
),
|
|
(
|
|
&[
|
|
"ab",
|
|
"cd",
|
|
"ef",
|
|
][..],
|
|
(0, 2),
|
|
(1, 1),
|
|
"\nc",
|
|
&[
|
|
"abd",
|
|
"ef",
|
|
][..]
|
|
),
|
|
(
|
|
&[
|
|
"ab",
|
|
"cd",
|
|
"ef",
|
|
][..],
|
|
(1, 0),
|
|
(2, 1),
|
|
"cd\ne",
|
|
&[
|
|
"ab",
|
|
"f",
|
|
][..]
|
|
),
|
|
(
|
|
&[
|
|
"ab",
|
|
"cd",
|
|
"ef",
|
|
][..],
|
|
(0, 2),
|
|
(1, 0),
|
|
"\n",
|
|
&[
|
|
"abcd",
|
|
"ef",
|
|
][..]
|
|
),
|
|
(
|
|
&[
|
|
"ab",
|
|
"cd",
|
|
"ef",
|
|
][..],
|
|
(0, 2),
|
|
(2, 0),
|
|
"\ncd\n",
|
|
&[
|
|
"abef",
|
|
][..]
|
|
),
|
|
// Multi-byte characters
|
|
(
|
|
&[
|
|
"あい",
|
|
"うえ",
|
|
"おか",
|
|
][..],
|
|
(0, 0),
|
|
(2, 2),
|
|
"あい\nうえ\nおか",
|
|
&[
|
|
"",
|
|
][..]
|
|
),
|
|
(
|
|
&[
|
|
"あい",
|
|
"うえ",
|
|
"おか",
|
|
][..],
|
|
(0, 1),
|
|
(2, 1),
|
|
"い\nうえ\nお",
|
|
&[
|
|
"あか",
|
|
][..]
|
|
),
|
|
(
|
|
&[
|
|
"あい",
|
|
"うえ",
|
|
"おか",
|
|
][..],
|
|
(0, 2),
|
|
(2, 0),
|
|
"\nうえ\n",
|
|
&[
|
|
"あいおか",
|
|
][..]
|
|
),
|
|
(
|
|
&[
|
|
"あい",
|
|
"うえ",
|
|
"おか",
|
|
][..],
|
|
(0, 2),
|
|
(1, 2),
|
|
"\nうえ",
|
|
&[
|
|
"あい",
|
|
"おか",
|
|
][..]
|
|
),
|
|
(
|
|
&[
|
|
"あい",
|
|
"うえ",
|
|
"おか",
|
|
][..],
|
|
(0, 2),
|
|
(1, 1),
|
|
"\nう",
|
|
&[
|
|
"あいえ",
|
|
"おか",
|
|
][..]
|
|
),
|
|
(
|
|
&[
|
|
"あい",
|
|
"うえ",
|
|
"おか",
|
|
][..],
|
|
(0, 2),
|
|
(1, 0),
|
|
"\n",
|
|
&[
|
|
"あいうえ",
|
|
"おか",
|
|
][..]
|
|
),
|
|
];
|
|
|
|
for test in tests {
|
|
let (init_text, (srow, scol), (erow, ecol), yanked, after_cut) = test;
|
|
|
|
{
|
|
let mut t = TextArea::from(init_text.iter().map(|s| s.to_string()));
|
|
t.move_cursor(CursorMove::Jump(srow as _, scol as _));
|
|
t.start_selection();
|
|
t.move_cursor(CursorMove::Jump(erow as _, ecol as _));
|
|
t.copy();
|
|
|
|
assert_eq!(t.cursor(), (erow, ecol), "{test:?}");
|
|
assert_eq!(t.yank_text(), yanked, "{test:?}");
|
|
assert_eq!(t.lines(), init_text, "{test:?}");
|
|
assert_no_undo_redo(&mut t, test);
|
|
}
|
|
|
|
{
|
|
let mut t = TextArea::from(init_text.iter().map(|s| s.to_string()));
|
|
t.move_cursor(CursorMove::Jump(srow as _, scol as _));
|
|
t.start_selection();
|
|
t.move_cursor(CursorMove::Jump(erow as _, ecol as _));
|
|
t.cut();
|
|
|
|
assert_eq!(t.cursor(), (srow, scol), "{test:?}");
|
|
assert_eq!(t.yank_text(), yanked, "{test:?}");
|
|
assert_eq!(t.lines(), after_cut, "{test:?}");
|
|
assert_undo_redo((erow, ecol), init_text, after_cut, &mut t, test);
|
|
|
|
t.paste();
|
|
assert_eq!(t.lines(), init_text, "{test:?}");
|
|
assert_undo_redo((srow, scol), after_cut, init_text, &mut t, test);
|
|
}
|
|
|
|
// Reverse positions
|
|
{
|
|
let mut t = TextArea::from(init_text.iter().map(|s| s.to_string()));
|
|
t.move_cursor(CursorMove::Jump(erow as _, ecol as _));
|
|
t.start_selection();
|
|
t.move_cursor(CursorMove::Jump(srow as _, scol as _));
|
|
t.copy();
|
|
|
|
assert_eq!(t.cursor(), (srow, scol), "{test:?}");
|
|
assert_eq!(t.yank_text(), yanked, "{test:?}");
|
|
assert_eq!(t.lines(), init_text, "{test:?}");
|
|
assert_no_undo_redo(&mut t, test);
|
|
}
|
|
|
|
{
|
|
let mut t = TextArea::from(init_text.iter().map(|s| s.to_string()));
|
|
t.move_cursor(CursorMove::Jump(erow as _, ecol as _));
|
|
t.start_selection();
|
|
t.move_cursor(CursorMove::Jump(srow as _, scol as _));
|
|
t.cut();
|
|
|
|
assert_eq!(t.cursor(), (srow, scol), "{test:?}");
|
|
assert_eq!(t.yank_text(), yanked, "{test:?}");
|
|
assert_eq!(t.lines(), after_cut, "{test:?}");
|
|
assert_undo_redo((erow, ecol), init_text, after_cut, &mut t, test);
|
|
|
|
t.paste();
|
|
assert_eq!(t.lines(), init_text, "{test:?}");
|
|
assert_undo_redo((srow, scol), after_cut, init_text, &mut t, test);
|
|
}
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn test_delete_selection_on_delete_operations() {
|
|
macro_rules! test_case {
|
|
($name:ident($($args:expr),*)) => {
|
|
(
|
|
stringify!($name),
|
|
(|t| t.$name($($args),*)) as fn(&mut TextArea) -> bool,
|
|
)
|
|
};
|
|
}
|
|
|
|
let tests = [
|
|
test_case!(delete_char()),
|
|
test_case!(delete_next_char()),
|
|
test_case!(delete_line_by_end()),
|
|
test_case!(delete_line_by_head()),
|
|
test_case!(delete_word()),
|
|
test_case!(delete_next_word()),
|
|
test_case!(delete_str(3)),
|
|
];
|
|
|
|
for (n, f) in tests {
|
|
let mut t = TextArea::from(["ab", "cd", "ef"]);
|
|
t.move_cursor(CursorMove::Jump(0, 1));
|
|
t.start_selection();
|
|
t.move_cursor(CursorMove::Jump(2, 1));
|
|
|
|
let modified = f(&mut t);
|
|
assert!(modified, "{n}");
|
|
assert_eq!(t.lines(), ["af"], "{n}");
|
|
assert_eq!(t.cursor(), (0, 1), "{n}");
|
|
|
|
assert_undo_redo((2, 1), &["ab", "cd", "ef"], &["af"], &mut t, n);
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn test_delete_selection_on_delete_edge_cases() {
|
|
macro_rules! test_case {
|
|
($name:ident($($args:expr),*), $pos:expr) => {
|
|
(
|
|
stringify!($name),
|
|
(|t| t.$name($($args),*)) as fn(&mut TextArea) -> bool,
|
|
$pos,
|
|
)
|
|
};
|
|
}
|
|
|
|
// When deleting nothing and deleting newline
|
|
let tests = [
|
|
test_case!(delete_char(), (0, 0)),
|
|
test_case!(delete_char(), (1, 0)),
|
|
test_case!(delete_next_char(), (2, 2)),
|
|
test_case!(delete_next_char(), (1, 2)),
|
|
test_case!(delete_line_by_end(), (0, 2)),
|
|
test_case!(delete_line_by_end(), (2, 2)),
|
|
test_case!(delete_line_by_head(), (0, 0)),
|
|
test_case!(delete_line_by_head(), (1, 0)),
|
|
test_case!(delete_word(), (0, 0)),
|
|
test_case!(delete_word(), (1, 0)),
|
|
test_case!(delete_next_word(), (2, 2)),
|
|
test_case!(delete_next_word(), (1, 2)),
|
|
test_case!(delete_str(0), (0, 0)),
|
|
test_case!(delete_str(100), (2, 2)),
|
|
];
|
|
|
|
for (n, f, pos) in tests {
|
|
let mut t = TextArea::from(["ab", "cd", "ef"]);
|
|
t.move_cursor(CursorMove::Jump(1, 1));
|
|
t.start_selection();
|
|
t.move_cursor(CursorMove::Jump(pos.0 as _, pos.1 as _));
|
|
|
|
assert!(f(&mut t), "{n}, {pos:?}");
|
|
assert_eq!(t.cursor(), cmp::min(pos, (1, 1)), "{n}, {pos:?}");
|
|
|
|
t.undo();
|
|
assert_eq!(t.lines(), ["ab", "cd", "ef"], "{n}, {pos:?}");
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn test_delete_selection_before_insert() {
|
|
macro_rules! test_case {
|
|
($name:ident($($args:expr),*), $want:expr) => {
|
|
(
|
|
stringify!($name),
|
|
(|t| {
|
|
t.$name($($args),*);
|
|
}) as fn(&mut TextArea),
|
|
&$want as &[_],
|
|
)
|
|
};
|
|
}
|
|
|
|
let tests = [
|
|
test_case!(insert_newline(), ["a", "f"]),
|
|
test_case!(insert_char('x'), ["axf"]),
|
|
test_case!(insert_tab(), ["a f"]), // Default tab is 4 spaces
|
|
test_case!(insert_str("xyz"), ["axyzf"]),
|
|
];
|
|
|
|
for (n, f, after) in tests {
|
|
let mut t = TextArea::from(["ab", "cd", "ef"]);
|
|
t.move_cursor(CursorMove::Jump(0, 1));
|
|
t.start_selection();
|
|
t.move_cursor(CursorMove::Jump(2, 1));
|
|
|
|
f(&mut t);
|
|
assert_eq!(t.lines(), after, "{n}");
|
|
|
|
// XXX: Deleting selection and inserting text are separate undo units for now
|
|
t.undo();
|
|
t.undo();
|
|
assert_eq!(t.lines(), ["ab", "cd", "ef"], "{n}");
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn test_clear_on_empty_text() {
|
|
let mut t = TextArea::default();
|
|
|
|
let was_cleared = t.clear();
|
|
assert!(!was_cleared);
|
|
}
|
|
|
|
#[test]
|
|
fn test_clear_text() {
|
|
let mut t = TextArea::default();
|
|
let input = "
|
|
Hello world
|
|
|
|
Again
|
|
";
|
|
t.insert_str(input);
|
|
let was_cleared = t.clear();
|
|
assert!(
|
|
t.lines().join("\n").is_empty(),
|
|
"Textarea should be empty after clearing the text"
|
|
);
|
|
assert!(was_cleared);
|
|
|
|
t.undo();
|
|
assert_eq!(
|
|
t.lines().join("\n"),
|
|
input,
|
|
"Textare should have the previous content before the reset. Orginal input: {input}",
|
|
);
|
|
|
|
t.redo();
|
|
assert!(
|
|
t.lines().join("\n").is_empty(),
|
|
"Textarea should be empty after clearing the text again"
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_undo_redo_stop_selection() {
|
|
fn check(t: &mut TextArea, f: fn(&mut TextArea) -> bool) {
|
|
t.move_cursor(CursorMove::Jump(0, 0));
|
|
t.start_selection();
|
|
t.move_cursor(CursorMove::Jump(0, 1));
|
|
assert!(t.is_selecting());
|
|
assert!(f(t));
|
|
assert!(!t.is_selecting());
|
|
}
|
|
|
|
let mut t = TextArea::default();
|
|
t.insert_char('a');
|
|
|
|
check(&mut t, |t| t.undo());
|
|
assert_eq!(t.lines(), [""]);
|
|
check(&mut t, |t| t.redo());
|
|
assert_eq!(t.lines(), ["a"]);
|
|
}
|
|
|
|
#[test]
|
|
fn test_set_yank_paste_text() {
|
|
let tests = [
|
|
("", &[""][..], (0, 0)),
|
|
("abc", &["abc"][..], (0, 3)),
|
|
("abc\ndef", &["abc", "def"][..], (1, 3)),
|
|
("\n\n", &["", "", ""][..], (2, 0)),
|
|
];
|
|
|
|
for test in tests {
|
|
let (text, want, pos) = test;
|
|
let mut t = TextArea::default();
|
|
t.set_yank_text(text);
|
|
t.paste();
|
|
assert_eq!(t.lines(), want, "{test:?}");
|
|
assert_eq!(t.yank_text(), text, "{test:?}");
|
|
assert_eq!(t.cursor(), pos, "{test:?}");
|
|
assert_undo_redo((0, 0), &[""], want, &mut t, test);
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn test_set_yank_crlf() {
|
|
let tests = [
|
|
("\r\n", &["", ""][..], "\n"),
|
|
("\r\n\r\n", &["", "", ""][..], "\n\n"),
|
|
("a\r\nb", &["a", "b"][..], "a\nb"),
|
|
("a\r\nb\r\n", &["a", "b", ""][..], "a\nb\n"),
|
|
];
|
|
for test in tests {
|
|
let (pasted, lines, yanked) = test;
|
|
let mut t = TextArea::default();
|
|
t.set_yank_text(pasted);
|
|
t.paste();
|
|
assert_eq!(t.lines(), lines, "{test:?}");
|
|
assert_eq!(t.yank_text(), yanked, "{test:?}");
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn test_select_all() {
|
|
let mut t = TextArea::from(["aaa", "bbb", "ccc"]);
|
|
t.select_all();
|
|
assert!(t.is_selecting());
|
|
assert_eq!(t.cursor(), (2, 3));
|
|
t.cut();
|
|
assert_eq!(t.lines(), [""]);
|
|
assert_eq!(t.yank_text(), "aaa\nbbb\nccc");
|
|
assert_undo_redo((2, 3), &["aaa", "bbb", "ccc"], &[""], &mut t, "");
|
|
}
|
|
|
|
#[test]
|
|
fn test_paste_while_selection() {
|
|
let mut t = TextArea::from(["ab", "cd"]);
|
|
t.move_cursor(CursorMove::Jump(0, 1));
|
|
t.start_selection();
|
|
t.move_cursor(CursorMove::Jump(1, 1));
|
|
t.set_yank_text("x\ny");
|
|
assert!(t.paste());
|
|
assert_eq!(t.lines(), ["ax", "yd"]);
|
|
assert_eq!(t.cursor(), (1, 1));
|
|
assert!(!t.is_selecting());
|
|
|
|
let mut t = TextArea::from(["ab", "cd"]);
|
|
t.select_all();
|
|
t.set_yank_text("xy\nzw");
|
|
assert!(t.paste());
|
|
assert_eq!(t.lines(), ["xy", "zw"]);
|
|
assert_eq!(t.cursor(), (1, 2));
|
|
assert!(!t.is_selecting());
|
|
}
|
|
|
|
#[test]
|
|
fn test_selection_range() {
|
|
#[rustfmt::skip]
|
|
let mut t = TextArea::from([
|
|
"あいうえお",
|
|
"Hello",
|
|
"🐶🐱🐰🐮🐹",
|
|
]);
|
|
|
|
assert_eq!(t.selection_range(), None);
|
|
|
|
for (from, to) in [
|
|
((0, 0), (0, 0)),
|
|
((2, 5), (2, 5)),
|
|
((0, 2), (2, 3)),
|
|
((2, 1), (0, 4)),
|
|
((0, 0), (2, 5)),
|
|
((2, 5), (0, 0)),
|
|
] {
|
|
let (x, y) = from;
|
|
t.move_cursor(CursorMove::Jump(x as _, y as _));
|
|
|
|
t.start_selection();
|
|
|
|
let (x, y) = to;
|
|
t.move_cursor(CursorMove::Jump(x as _, y as _));
|
|
|
|
let have = t.selection_range().unwrap();
|
|
let want = if from <= to { (from, to) } else { (to, from) };
|
|
assert_eq!(have, want, "selection from {from:?} to {to:?}");
|
|
|
|
t.cancel_selection();
|
|
let range = t.selection_range();
|
|
assert_eq!(range, None, "selection from {from:?} to {to:?}");
|
|
}
|
|
}
|
|
|
|
struct DeleteTester(&'static [&'static str], fn(&mut TextArea) -> bool);
|
|
impl DeleteTester {
|
|
fn test(&self, before: (usize, usize), after: (usize, usize, &[&str], &str)) {
|
|
let Self(buf_before, op) = *self;
|
|
let (row, col) = before;
|
|
|
|
let mut t = TextArea::from(buf_before.iter().map(|s| s.to_string()));
|
|
t.move_cursor(CursorMove::Jump(row as _, col as _));
|
|
let modified = op(&mut t);
|
|
|
|
let (row, col, buf_after, yank) = after;
|
|
assert_eq!(t.lines(), buf_after);
|
|
assert_eq!(t.cursor(), (row, col));
|
|
assert_eq!(modified, buf_before != buf_after);
|
|
assert_eq!(t.yank_text(), yank);
|
|
|
|
if modified {
|
|
t.undo();
|
|
assert_eq!(t.lines(), buf_before);
|
|
t.redo();
|
|
assert_eq!(t.lines(), buf_after);
|
|
} else {
|
|
assert_no_undo_redo(&mut t, "");
|
|
}
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn test_delete_newline() {
|
|
let t = DeleteTester(&["a", "b", "c"], |t| t.delete_newline());
|
|
t.test((0, 0), (0, 0, t.0, ""));
|
|
t.test((1, 0), (0, 1, &["ab", "c"], ""));
|
|
t.test((2, 0), (1, 1, &["a", "bc"], ""));
|
|
}
|
|
|
|
#[test]
|
|
fn test_delete_char() {
|
|
let t = DeleteTester(&["ab", "c"], |t| t.delete_char());
|
|
t.test((0, 0), (0, 0, t.0, ""));
|
|
t.test((0, 1), (0, 0, &["b", "c"], ""));
|
|
t.test((0, 2), (0, 1, &["a", "c"], ""));
|
|
t.test((1, 0), (0, 2, &["abc"], ""));
|
|
}
|
|
|
|
#[test]
|
|
fn test_delete_next_char() {
|
|
let t = DeleteTester(&["ab", "c"], |t| t.delete_next_char());
|
|
t.test((0, 0), (0, 0, &["b", "c"], ""));
|
|
t.test((0, 1), (0, 1, &["a", "c"], ""));
|
|
t.test((0, 2), (0, 2, &["abc"], ""));
|
|
t.test((1, 1), (1, 1, t.0, ""));
|
|
}
|
|
|
|
#[test]
|
|
fn test_delete_line_by_end() {
|
|
let t = DeleteTester(&["aaa bbb", "d"], |t| t.delete_line_by_end());
|
|
t.test((0, 0), (0, 0, &["", "d"], "aaa bbb"));
|
|
t.test((0, 3), (0, 3, &["aaa", "d"], " bbb"));
|
|
t.test((0, 6), (0, 6, &["aaa bb", "d"], "b"));
|
|
t.test((0, 7), (0, 7, &["aaa bbbd"], "")); // Newline is not yanked
|
|
t.test((1, 1), (1, 1, t.0, ""));
|
|
}
|
|
|
|
#[test]
|
|
fn test_delete_line_by_head() {
|
|
let t = DeleteTester(&["aaa bbb", "d"], |t| t.delete_line_by_head());
|
|
t.test((0, 0), (0, 0, t.0, ""));
|
|
t.test((0, 3), (0, 0, &[" bbb", "d"], "aaa"));
|
|
t.test((0, 7), (0, 0, &["", "d"], "aaa bbb"));
|
|
t.test((1, 0), (0, 7, &["aaa bbbd"], "")); // Newline is not yanked
|
|
}
|
|
|
|
#[test]
|
|
fn test_delete_word() {
|
|
let t = DeleteTester(&["word ことば 🐶", " x"], |t| t.delete_word());
|
|
t.test((0, 0), (0, 0, t.0, ""));
|
|
t.test((0, 2), (0, 0, &["rd ことば 🐶", " x"], "wo"));
|
|
t.test((0, 4), (0, 0, &[" ことば 🐶", " x"], "word"));
|
|
t.test((0, 5), (0, 0, &[" ことば 🐶", " x"], "word "));
|
|
t.test((0, 6), (0, 0, &["ことば 🐶", " x"], "word "));
|
|
t.test((0, 7), (0, 6, &["word とば 🐶", " x"], "こ"));
|
|
t.test((0, 9), (0, 6, &["word 🐶", " x"], "ことば"));
|
|
t.test((0, 10), (0, 6, &["word 🐶", " x"], "ことば "));
|
|
t.test((0, 11), (0, 10, &["word ことば ", " x"], "🐶"));
|
|
t.test((1, 0), (0, 11, &["word ことば 🐶 x"], ""));
|
|
t.test((1, 1), (1, 0, &["word ことば 🐶", "x"], " "));
|
|
t.test((1, 2), (1, 1, &["word ことば 🐶", " "], "x"));
|
|
}
|
|
|
|
#[test]
|
|
fn test_delete_next_word() {
|
|
let t = DeleteTester(&["word ことば 🐶", " x"], |t| t.delete_next_word());
|
|
t.test((0, 0), (0, 0, &[" ことば 🐶", " x"], "word"));
|
|
t.test((0, 2), (0, 2, &["wo ことば 🐶", " x"], "rd"));
|
|
t.test((0, 4), (0, 4, &["word 🐶", " x"], " ことば"));
|
|
t.test((0, 5), (0, 5, &["word 🐶", " x"], " ことば"));
|
|
t.test((0, 6), (0, 6, &["word 🐶", " x"], "ことば"));
|
|
t.test((0, 9), (0, 9, &["word ことば", " x"], " 🐶"));
|
|
t.test((0, 10), (0, 10, &["word ことば ", " x"], "🐶"));
|
|
t.test((0, 11), (0, 11, &["word ことば 🐶 x"], ""));
|
|
t.test((1, 0), (1, 0, &["word ことば 🐶", ""], " x"));
|
|
t.test((1, 2), (1, 2, t.0, ""));
|
|
}
|