//
/// Set the three-state property.
//
void
TCheckListItem::SetThreeStates(bool hasThreeStates)
{
if (IsEnabled()){
HasThreeStates = hasThreeStates;
if (IsIndeterminate() && !hasThreeStates)
Check();
}
}
double
HTMLProgressElement::Position() const
{
if (IsIndeterminate()) {
return kIndeterminatePosition;
}
return Value() / Max();
}
//------------------------------------------------------------
NS_IMETHODIMP
nsGfxCheckboxControlFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsRect& aDirtyRect,
const nsDisplayListSet& aLists)
{
nsresult rv = nsFormControlFrame::BuildDisplayList(aBuilder, aDirtyRect,
aLists);
NS_ENSURE_SUCCESS(rv, rv);
// Get current checked state through content model.
if ((!IsChecked() && !IsIndeterminate()) || !IsVisibleForPainting(aBuilder))
return NS_OK; // we're not checked or not visible, nothing to paint.
if (IsThemed())
return NS_OK; // No need to paint the checkmark. The theme will do it.
return aLists.Content()->AppendNewToTop(new (aBuilder)
nsDisplayGeneric(aBuilder, this,
IsIndeterminate()
? PaintIndeterminateMark : PaintCheckMark,
"CheckedCheckbox",
nsDisplayItem::TYPE_CHECKED_CHECKBOX));
}
//
/// Toggle the state of the item.
/// If the item has three states, the cycle goes from
/// unchecked -> checked -> indeterminate -> back to unchecked.
/// Otherwise the state toggles between
/// unchecked and checked.
//
void
TCheckListItem::Toggle()
{
if (!IsEnabled())
return;
if (HasThreeStates) {
if (IsIndeterminate())
Uncheck();
else if (IsChecked())
SetIndeterminate();
else
Check();
}
else {
if (IsChecked())
Uncheck();
else
Check();
}
}
