NS_IMETHODIMP nsViewManager::SetViewVisibility(nsIView *aView, nsViewVisibility aVisible)
{
nsView* view = static_cast<nsView*>(aView);
NS_ASSERTION(view->GetViewManager() == this, "wrong view manager");
if (aVisible != view->GetVisibility()) {
view->SetVisibility(aVisible);
if (IsViewInserted(view)) {
if (!view->HasWidget()) {
if (nsViewVisibility_kHide == aVisible) {
nsView* parentView = view->GetParent();
if (parentView) {
parentView->GetViewManager()->
InvalidateView(parentView, view->GetBoundsInParentUnits());
}
}
else {
InvalidateView(view);
}
}
}
}
return NS_OK;
}
void
nsViewManager::SetViewVisibility(nsView *aView, nsViewVisibility aVisible)
{
NS_ASSERTION(aView->GetViewManager() == this, "wrong view manager");
if (aVisible != aView->GetVisibility()) {
aView->SetVisibility(aVisible);
if (IsViewInserted(aView)) {
if (!aView->HasWidget()) {
if (nsViewVisibility_kHide == aVisible) {
nsView* parentView = aView->GetParent();
if (parentView) {
parentView->GetViewManager()->
InvalidateView(parentView, aView->GetBoundsInParentUnits());
}
}
else {
InvalidateView(aView);
}
}
}
}
}
NS_IMETHODIMP nsViewManager::InsertChild(nsIView *aParent, nsIView *aChild, nsIView *aSibling,
bool aAfter)
{
nsView* parent = static_cast<nsView*>(aParent);
nsView* child = static_cast<nsView*>(aChild);
nsView* sibling = static_cast<nsView*>(aSibling);
NS_PRECONDITION(nsnull != parent, "null ptr");
NS_PRECONDITION(nsnull != child, "null ptr");
NS_ASSERTION(sibling == nsnull || sibling->GetParent() == parent,
"tried to insert view with invalid sibling");
NS_ASSERTION(!IsViewInserted(child), "tried to insert an already-inserted view");
if ((nsnull != parent) && (nsnull != child))
{
// if aAfter is set, we will insert the child after 'prev' (i.e. after 'kid' in document
// order, otherwise after 'kid' (i.e. before 'kid' in document order).
#if 1
if (nsnull == aSibling) {
if (aAfter) {
// insert at end of document order, i.e., before first view
// this is the common case, by far
parent->InsertChild(child, nsnull);
ReparentWidgets(child, parent);
} else {
// insert at beginning of document order, i.e., after last view
nsView *kid = parent->GetFirstChild();
nsView *prev = nsnull;
while (kid) {
prev = kid;
kid = kid->GetNextSibling();
}
// prev is last view or null if there are no children
parent->InsertChild(child, prev);
ReparentWidgets(child, parent);
}
} else {
nsView *kid = parent->GetFirstChild();
nsView *prev = nsnull;
while (kid && sibling != kid) {
//get the next sibling view
prev = kid;
kid = kid->GetNextSibling();
}
NS_ASSERTION(kid != nsnull,
"couldn't find sibling in child list");
if (aAfter) {
// insert after 'kid' in document order, i.e. before in view order
parent->InsertChild(child, prev);
ReparentWidgets(child, parent);
} else {
// insert before 'kid' in document order, i.e. after in view order
parent->InsertChild(child, kid);
ReparentWidgets(child, parent);
}
}
#else // don't keep consistent document order, but order things by z-index instead
// essentially we're emulating the old InsertChild(parent, child, zindex)
PRInt32 zIndex = child->GetZIndex();
while (nsnull != kid)
{
PRInt32 idx = kid->GetZIndex();
if (CompareZIndex(zIndex, child->IsTopMost(), child->GetZIndexIsAuto(),
idx, kid->IsTopMost(), kid->GetZIndexIsAuto()) >= 0)
break;
prev = kid;
kid = kid->GetNextSibling();
}
parent->InsertChild(child, prev);
ReparentWidgets(child, parent);
#endif
// if the parent view is marked as "floating", make the newly added view float as well.
if (parent->GetFloating())
child->SetFloating(true);
//and mark this area as dirty if the view is visible...
if (nsViewVisibility_kHide != child->GetVisibility())
child->GetViewManager()->InvalidateView(child);
}
return NS_OK;
}
void
nsViewManager::InsertChild(nsView *aParent, nsView *aChild, nsView *aSibling,
bool aAfter)
{
NS_PRECONDITION(nullptr != aParent, "null ptr");
NS_PRECONDITION(nullptr != aChild, "null ptr");
NS_ASSERTION(aSibling == nullptr || aSibling->GetParent() == aParent,
"tried to insert view with invalid sibling");
NS_ASSERTION(!IsViewInserted(aChild), "tried to insert an already-inserted view");
if ((nullptr != aParent) && (nullptr != aChild))
{
// if aAfter is set, we will insert the child after 'prev' (i.e. after 'kid' in document
// order, otherwise after 'kid' (i.e. before 'kid' in document order).
if (nullptr == aSibling) {
if (aAfter) {
// insert at end of document order, i.e., before first view
// this is the common case, by far
aParent->InsertChild(aChild, nullptr);
ReparentWidgets(aChild, aParent);
} else {
// insert at beginning of document order, i.e., after last view
nsView *kid = aParent->GetFirstChild();
nsView *prev = nullptr;
while (kid) {
prev = kid;
kid = kid->GetNextSibling();
}
// prev is last view or null if there are no children
aParent->InsertChild(aChild, prev);
ReparentWidgets(aChild, aParent);
}
} else {
nsView *kid = aParent->GetFirstChild();
nsView *prev = nullptr;
while (kid && aSibling != kid) {
//get the next sibling view
prev = kid;
kid = kid->GetNextSibling();
}
NS_ASSERTION(kid != nullptr,
"couldn't find sibling in child list");
if (aAfter) {
// insert after 'kid' in document order, i.e. before in view order
aParent->InsertChild(aChild, prev);
ReparentWidgets(aChild, aParent);
} else {
// insert before 'kid' in document order, i.e. after in view order
aParent->InsertChild(aChild, kid);
ReparentWidgets(aChild, aParent);
}
}
// if the parent view is marked as "floating", make the newly added view float as well.
if (aParent->GetFloating())
aChild->SetFloating(true);
//and mark this area as dirty if the view is visible...
if (nsViewVisibility_kHide != aChild->GetVisibility())
aChild->GetViewManager()->InvalidateView(aChild);
}
}
