nsIntPoint
nsCoreUtils::GetScreenCoordsForWindow(nsINode *aNode)
{
nsIntPoint coords(0, 0);
nsCOMPtr<nsIDocShellTreeItem> treeItem(GetDocShellTreeItemFor(aNode));
if (!treeItem)
return coords;
nsCOMPtr<nsIDocShellTreeItem> rootTreeItem;
treeItem->GetRootTreeItem(getter_AddRefs(rootTreeItem));
nsCOMPtr<nsIDOMDocument> domDoc = do_GetInterface(rootTreeItem);
nsCOMPtr<nsIDOMDocumentView> docView(do_QueryInterface(domDoc));
if (!docView)
return coords;
nsCOMPtr<nsIDOMAbstractView> abstractView;
docView->GetDefaultView(getter_AddRefs(abstractView));
nsCOMPtr<nsIDOMWindowInternal> windowInter(do_QueryInterface(abstractView));
if (!windowInter)
return coords;
windowInter->GetScreenX(&coords.x);
windowInter->GetScreenY(&coords.y);
return coords;
}
nsIntPoint
nsCoreUtils::GetScreenCoordsForWindow(nsINode *aNode)
{
nsIntPoint coords(0, 0);
nsCOMPtr<nsIDocShellTreeItem> treeItem(GetDocShellTreeItemFor(aNode));
if (!treeItem)
return coords;
nsCOMPtr<nsIDocShellTreeOwner> treeOwner;
treeItem->GetTreeOwner(getter_AddRefs(treeOwner));
if (!treeOwner)
return coords;
nsCOMPtr<nsIBaseWindow> baseWindow = do_QueryInterface(treeOwner);
if (baseWindow)
baseWindow->GetPosition(&coords.x, &coords.y); // in device pixels
return coords;
}
