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Using TAB key event.

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A key event that makes use of TAB key to cycle the elements.

Co-authored-by: Trim Bresilla <trim.bresilla@gmail.com>"
Co-authored-by: ArthurSonzogni <sonzogniarthur@gmail.com>
This commit is contained in:
ArthurSonzogni
2019-11-01 19:52:41 +01:00
parent 7f0381e30a
commit 22f8f0d3b7
6 changed files with 54 additions and 55 deletions
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16
src/ftxui/component/menu.cpp
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@@ -22,15 +22,19 @@ bool Menu::OnEvent(Event event) {
if (!Focused())
return false;
int new_selected = selected;
int old_selected = selected;
if (event == Event::ArrowUp || event == Event::Character('k'))
new_selected--;
selected--;
if (event == Event::ArrowDown || event == Event::Character('j'))
new_selected++;
new_selected = std::max(0, std::min(int(entries.size()) - 1, new_selected));
selected++;
if (event == Event::Tab && entries.size())
selected = (selected + 1) % entries.size();
if (event == Event::TabReverse && entries.size())
selected = (selected + entries.size() - 1) % entries.size();
if (selected != new_selected) {
selected = new_selected;
selected = std::max(0, std::min(int(entries.size()) - 1, selected));
if (selected != old_selected) {
on_change();
return true;
}