78 lines
2.1 KiB
Go
78 lines
2.1 KiB
Go
package mujica
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import (
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"log/slog"
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"strings"
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"github.com/egoist/mygo/ui"
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)
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// TerminalSearchState is a search through a terminal's scrollback and screen.
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type TerminalSearchState struct {
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Query string
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// Current is the chosen match, from 0.
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Current int
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query string
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version int
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ran bool
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}
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// TerminalSearchOptions configure a TerminalSearch.
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type TerminalSearchOptions struct {
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Disabled bool
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}
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// TerminalSearch finds Query in term and shows the current match.
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func TerminalSearch(c *ui.Context, term *TerminalState, s *TerminalSearchState, opts TerminalSearchOptions) ChoiceResult {
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if term == nil || s == nil {
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panic("mujica: TerminalSearch needs a terminal and a state")
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}
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term.init()
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fresh := terminalSearchRun(term, s)
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r := SearchInput(c, &s.Query, SearchInputOptions{Find: true, Matches: len(term.matches), Current: &s.Current,
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Disabled: opts.Disabled, Label: msg(c, "terminal_search.label")})
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var res ChoiceResult
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res.Element = r.Element
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if r.Changed() {
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s.Current = 0
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terminalSearchRun(term, s)
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res.changed = true
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}
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if r.Moved() {
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res.changed = true
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}
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if res.changed || fresh {
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term.current = s.Current
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if s.Current < len(term.matches) {
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term.reveal(term.matches[s.Current].pos.Line)
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}
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slog.Debug("mujica: terminal_search move", "matches", len(term.matches), "current", s.Current)
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}
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return res
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}
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// terminalSearchRun refinds matches; it reports a new query.
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func terminalSearchRun(term *TerminalState, s *TerminalSearchState) bool {
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if s.ran && s.query == s.Query && s.version == term.version {
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return false
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}
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fresh := !s.ran || s.query != s.Query
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s.ran, s.query, s.version = true, s.Query, term.version
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term.matches = term.matches[:0]
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q := []rune(strings.ToLower(s.Query))
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if len(q) > 0 {
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for i := range term.Lines() {
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line := []rune(strings.ToLower(term.LineText(i)))
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for col := 0; col+len(q) <= len(line); col++ {
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if string(line[col:col+len(q)]) == string(q) {
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term.matches = append(term.matches, terminalMatch{TerminalPos{i, col}, len(q)})
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col += len(q) - 1
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}
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}
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}
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}
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s.Current = max(0, min(s.Current, len(term.matches)-1))
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term.current = s.Current
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return fresh
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}
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