void UIWidget::lockChild(const UIWidgetPtr& child)
{
if(m_destroyed)
return;
if(!child)
return;
if(!hasChild(child)) {
g_logger.traceError("cannot find child");
return;
}
// prevent double locks
if(isChildLocked(child))
unlockChild(child);
// disable all other children
for(const UIWidgetPtr& otherChild : m_children) {
if(otherChild == child)
child->setEnabled(true);
else
otherChild->setEnabled(false);
}
m_lockedChildren.push_front(child);
// lock child focus
if(child->isFocusable())
focusChild(child, Fw::ActiveFocusReason);
}
void UIWidget::lockChild(const UIWidgetPtr& child)
{
if(!child)
return;
assert(hasChild(child));
// prevent double locks
if(isChildLocked(child))
unlockChild(child);
// disable all other children
for(const UIWidgetPtr& otherChild : m_children) {
if(otherChild == child)
child->setEnabled(true);
else
otherChild->setEnabled(false);
}
m_lockedChildren.push_front(child);
// lock child focus
if(child->isFocusable())
focusChild(child, Fw::ActiveFocusReason);
moveChildToTop(child);
}
void UIWidget::removeChild(UIWidgetPtr child)
{
// remove from children list
if(hasChild(child)) {
// defocus if needed
bool focusAnother = false;
if(m_focusedChild == child) {
focusChild(nullptr, Fw::ActiveFocusReason);
focusAnother = true;
}
if(isChildLocked(child))
unlockChild(child);
auto it = std::find(m_children.begin(), m_children.end(), child);
m_children.erase(it);
// reset child parent
assert(child->getParent() == static_self_cast<UIWidget>());
child->setParent(nullptr);
m_layout->removeWidget(child);
// update child states
child->updateStates();
updateChildrenIndexStates();
if(m_autoFocusPolicy != Fw::AutoFocusNone && focusAnother && !m_focusedChild)
focusPreviousChild(Fw::ActiveFocusReason, true);
g_ui.onWidgetDisappear(child);
} else
g_logger.traceError("attempt to remove an unknown child from a UIWidget");
}
void UIWidget::removeChild(const UIWidgetPtr& child)
{
// remove from children list
if(hasChild(child)) {
// defocus if needed
bool focusAnother = false;
if(m_focusedChild == child) {
focusChild(nullptr, Fw::ActiveFocusReason);
focusAnother = true;
}
if(isChildLocked(child))
unlockChild(child);
auto it = std::find(m_children.begin(), m_children.end(), child);
m_children.erase(it);
// reset child parent
assert(child->getParent() == asUIWidget());
child->setParent(nullptr);
m_layout->removeWidget(child);
// update child states
child->updateStates();
updateChildrenIndexStates();
if(focusAnother && !m_focusedChild)
focusPreviousChild(Fw::ActiveFocusReason);
} else
logError("Attempt to remove an unknown child from a UIWidget");
}