Brandon McGintyandClaude Opus 5
17a4662c6c
Remove control, DEL, and bidi characters before display. HTML escaping was the only filter, which leaves ANSI and OSC escape sequences intact. A remote user could move the cursor, recolour the screen, or reorder what was shown by putting escape codes in a message, a nickname, or a channel name. Names rendered in the channel tree go through the same filter now. Keep the text box cursor and the prompt on rune boundaries. Both indexed by byte, so editing a line containing multi-byte characters could split one and render replacement characters. Handle text view lines that carry no timestamp. Toggling timestamps assumed every stored line had one and sliced past the end of lines that did not. Ignore key events on an empty tree. The handlers indexed the item list before checking that it had any items. Remove the beep helpers. They shelled out to an optional "beep" binary and panicked when it was absent. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
55 lines
844 B
Go
55 lines
844 B
Go
package uiterm
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import (
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"strings"
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"github.com/nsf/termbox-go"
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)
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type Label struct {
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Text string
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Fg, Bg Attribute
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ui *Ui
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x0, y0, x1, y1 int
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}
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func (l *Label) uiInitialize(ui *Ui) {
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l.ui = ui
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}
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func (l *Label) uiSetActive(active bool) {
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}
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func (l *Label) uiSetBounds(x0, y0, x1, y1 int) {
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l.x0 = x0
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l.y0 = y0
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l.x1 = x1
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l.y1 = y1
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l.uiDraw()
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}
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func (l *Label) uiDraw() {
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l.ui.beginDraw()
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defer l.ui.endDraw()
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reader := strings.NewReader(l.Text)
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for y := l.y0; y < l.y1; y++ {
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for x := l.x0; x < l.x1; x++ {
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var chr rune
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if ch, _, err := reader.ReadRune(); err != nil {
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chr = ' '
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} else {
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chr = safeRune(ch)
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}
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termbox.SetCell(x, y, chr, termbox.Attribute(l.Fg), termbox.Attribute(l.Bg))
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}
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}
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}
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func (l *Label) uiKeyEvent(key Key) {
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}
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func (l *Label) uiCharacterEvent(chr rune) {
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}
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