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LibGUI: Support cycling through focusable widgets with Tab and Shift-Tab.

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This commit is contained in:
Andreas Kling 2019-05-15 02:39:58 +02:00
parent 01ffcdfa31
commit ad731cc08f
10 changed files with 82 additions and 8 deletions
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34
LibGUI/GWidget.cpp
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@ -243,8 +243,14 @@ void GWidget::hide_event(GHideEvent&)
{
}
void GWidget::keydown_event(GKeyEvent&)
void GWidget::keydown_event(GKeyEvent& event)
{
if (!event.alt() && !event.ctrl() && !event.logo() && event.key() == KeyCode::Key_Tab) {
if (event.shift())
focus_previous_widget();
else
focus_next_widget();
}
}
void GWidget::keyup_event(GKeyEvent&)
@ -543,3 +549,29 @@ void GWidget::set_updates_enabled(bool enabled)
if (enabled)
update();
}
void GWidget::focus_previous_widget()
{
auto focusable_widgets = window()->focusable_widgets();
for (int i = focusable_widgets.size() - 1; i >= 0; --i) {
if (focusable_widgets[i] != this)
continue;
if (i > 0)
focusable_widgets[i - 1]->set_focus(true);
else
focusable_widgets.last()->set_focus(true);
}
}
void GWidget::focus_next_widget()
{
auto focusable_widgets = window()->focusable_widgets();
for (int i = 0; i < focusable_widgets.size(); ++i) {
if (focusable_widgets[i] != this)
continue;
if (i < focusable_widgets.size() - 1)
focusable_widgets[i + 1]->set_focus(true);
else
focusable_widgets.first()->set_focus(true);
}
}