void
nsViewManager::InvalidateHierarchy()
{
if (mRootView) {
if (!IsRootVM()) {
NS_RELEASE(mRootViewManager);
}
nsView *parent = mRootView->GetParent();
if (parent) {
mRootViewManager = parent->GetViewManager()->RootViewManager();
NS_ADDREF(mRootViewManager);
NS_ASSERTION(mRootViewManager != this,
"Root view had a parent, but it has the same view manager");
} else {
mRootViewManager = this;
}
}
}
void
nsViewManager::UpdateWidgetGeometry()
{
if (!IsRootVM()) {
RootViewManager()->UpdateWidgetGeometry();
return;
}
if (mHasPendingWidgetGeometryChanges) {
if (IsRefreshDriverPaintingEnabled()) {
mHasPendingWidgetGeometryChanges = false;
}
ProcessPendingUpdatesForView(mRootView, false);
if (!IsRefreshDriverPaintingEnabled()) {
mHasPendingWidgetGeometryChanges = false;
}
}
}
void
nsViewManager::CallWillPaintOnObservers(bool aWillSendDidPaint)
{
NS_PRECONDITION(IsRootVM(), "Must be root VM for this to be called!");
PRInt32 index;
for (index = 0; index < mVMCount; index++) {
nsViewManager* vm = (nsViewManager*)gViewManagers->ElementAt(index);
if (vm->RootViewManager() == this) {
// One of our kids.
if (vm->mRootView && vm->mRootView->IsEffectivelyVisible()) {
nsCOMPtr<nsIPresShell> shell = vm->GetPresShell();
if (shell) {
shell->WillPaint(aWillSendDidPaint);
}
}
}
}
}
void
nsViewManager::ProcessPendingUpdates()
{
if (!IsRootVM()) {
RootViewManager()->ProcessPendingUpdates();
return;
}
if (IsRefreshDriverPaintingEnabled()) {
mPresShell->GetPresContext()->RefreshDriver()->RevokeViewManagerFlush();
// Flush things like reflows by calling WillPaint on observer presShells.
if (mPresShell) {
CallWillPaintOnObservers(true);
}
ProcessPendingUpdatesForView(mRootView, true);
} else {
ProcessPendingUpdatesForView(mRootView, true);
}
}
void nsViewManager::ProcessPendingUpdatesForView(nsView* aView,
bool aFlushDirtyRegion)
{
NS_ASSERTION(IsRootVM(), "Updates will be missed");
// Protect against a null-view.
if (!aView) {
return;
}
if (aView->HasWidget()) {
aView->ResetWidgetBounds(false, true);
}
// process pending updates in child view.
for (nsView* childView = aView->GetFirstChild(); childView;
childView = childView->GetNextSibling()) {
ProcessPendingUpdatesForView(childView, aFlushDirtyRegion);
}
// Push out updates after we've processed the children; ensures that
// damage is applied based on the final widget geometry
if (aFlushDirtyRegion) {
if (IsRefreshDriverPaintingEnabled()) {
nsIWidget *widget = aView->GetWidget();
if (widget && widget->NeedsPaint()) {
// If an ancestor widget was hidden and then shown, we could
// have a delayed resize to handle.
for (nsViewManager *vm = this; vm;
vm = vm->mRootView->GetParent()
? vm->mRootView->GetParent()->GetViewManager()
: nullptr) {
if (vm->mDelayedResize != nsSize(NSCOORD_NONE, NSCOORD_NONE) &&
vm->mRootView->IsEffectivelyVisible() &&
mPresShell && mPresShell->IsVisible()) {
vm->FlushDelayedResize(true);
vm->InvalidateView(vm->mRootView);
}
}
NS_ASSERTION(aView->HasWidget(), "Must have a widget!");
SetPainting(true);
#ifdef DEBUG_INVALIDATIONS
printf("---- PAINT START ----PresShell(%p), nsView(%p), nsIWidget(%p)\n", mPresShell, aView, widget);
#endif
nsAutoScriptBlocker scriptBlocker;
NS_ASSERTION(aView->HasWidget(), "Must have a widget!");
mPresShell->Paint(aView, nsRegion(),
nsIPresShell::PAINT_LAYERS |
nsIPresShell::PAINT_WILL_SEND_DID_PAINT);
#ifdef DEBUG_INVALIDATIONS
printf("---- PAINT END ----\n");
#endif
aView->SetForcedRepaint(false);
SetPainting(false);
}
}
FlushDirtyRegionToWidget(aView);
}
}