116 lines
2.4 KiB
Go
116 lines
2.4 KiB
Go
package editor
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import (
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"timshome.page/gilo/char"
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"timshome.page/gilo/editor/highlight"
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"timshome.page/gilo/internal/gilo"
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)
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type search struct {
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cursor *gilo.Point
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offset *gilo.Point
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savedhlLine int
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savedhl []int
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direction int
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lastMatch int
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}
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func newSearch() *search {
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return &search{
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cursor: gilo.DefaultPoint(),
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offset: gilo.DefaultPoint(),
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savedhlLine: -1,
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savedhl: []int{},
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lastMatch: -1,
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direction: 1,
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}
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}
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func (e *Editor) find() {
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e.search.cursor.X = e.cursor.X
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e.search.cursor.Y = e.cursor.Y
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e.search.offset.X = e.offset.X
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e.search.offset.Y = e.offset.Y
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query := e.prompt("Search: %s (Use ESC/Arrows/Enter)", e.findCallback)
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if query == "" {
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e.cursor.X = e.search.cursor.X
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e.cursor.Y = e.search.cursor.Y
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e.offset.X = e.search.offset.X
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e.offset.Y = e.search.offset.Y
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return
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}
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}
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func (e *Editor) findCallback(query string, ch string) {
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// If we highlighted a previous match, restore the original highlighting
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if e.search.savedhlLine != -1 && e.search.savedhl != nil {
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staleRow := e.doc.GetRow(e.search.savedhlLine)
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for i, val := range e.search.savedhl {
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staleRow.Hl[i] = val
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}
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e.search.savedhl = nil
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e.search.savedhlLine = -1
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}
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if ch == string(char.Enter) || ch == string(char.Esc) {
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e.search.lastMatch = -1
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e.search.direction = 1
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return
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} else if ch == keyRight || ch == keyDown {
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e.search.direction = 1
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} else if ch == keyLeft || ch == keyUp {
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e.search.direction = -1
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} else {
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e.search.lastMatch = -1
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e.search.direction = 1
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}
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if e.search.lastMatch == -1 {
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e.search.direction = 1
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}
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if len(query) == 0 {
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return
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}
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current := e.search.lastMatch
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for i := 0; i < e.doc.RowCount(); i++ {
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current += e.search.direction
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if current == -1 {
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current = e.doc.RowCount() - 1
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} else if current == e.doc.RowCount() {
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current = 0
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}
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row := e.doc.GetRow(current)
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matchIndex := row.Search(query)
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if matchIndex == -1 {
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continue
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}
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e.search.lastMatch = current
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e.cursor.Y = current
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e.cursor.X = row.RenderXtoCursorX(matchIndex)
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e.offset.Y = e.doc.RowCount()
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// Save the current highlighting of where the search result is
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e.search.savedhlLine = current
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e.search.savedhl = make([]int, row.RenderSize())
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for i, val := range row.Hl {
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e.search.savedhl[i] = val
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}
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// Update highlighting of search result
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for x := matchIndex; x < matchIndex+len(query); x++ {
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row.Hl[x] = highlight.Match
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}
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break
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}
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}
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