void nsViewManager::WillPaintWindow(nsIWidget* aWidget, bool aWillSendDidPaint)
{
if (!IsRefreshDriverPaintingEnabled() && aWidget && mContext) {
// 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);
}
}
// Flush things like reflows by calling WillPaint on observer presShells.
nsRefPtr<nsViewManager> rootVM = RootViewManager();
rootVM->CallWillPaintOnObservers(aWillSendDidPaint);
// Flush view widget geometry updates and invalidations.
rootVM->ProcessPendingUpdates();
}
if (aWidget && IsRefreshDriverPaintingEnabled()) {
nsView* view = nsView::GetViewFor(aWidget);
if (view && view->ForcedRepaint()) {
ProcessPendingUpdates();
// Re-get the view pointer here since the ProcessPendingUpdates might have
// destroyed it during CallWillPaintOnObservers.
view = nsView::GetViewFor(aWidget);
if (view) {
view->SetForcedRepaint(false);
}
}
}
nsCOMPtr<nsIPresShell> shell = mPresShell;
if (shell) {
shell->WillPaintWindow(aWillSendDidPaint);
}
}
void nsViewManager::WillPaintWindow(nsIWidget* aWidget, bool aWillSendDidPaint)
{
if (aWidget) {
nsView* view = nsView::GetViewFor(aWidget);
if (view && view->ForcedRepaint()) {
ProcessPendingUpdates();
// Re-get the view pointer here since the ProcessPendingUpdates might have
// destroyed it during CallWillPaintOnObservers.
view = nsView::GetViewFor(aWidget);
if (view) {
view->SetForcedRepaint(false);
}
}
}
nsCOMPtr<nsIPresShell> shell = mPresShell;
if (shell) {
shell->WillPaintWindow(aWillSendDidPaint);
}
}
/**
aRegion is given in device coordinates!!
aContext may be null, in which case layers should be used for
rendering.
*/
void nsViewManager::Refresh(nsView *aView, const nsIntRegion& aRegion,
bool aWillSendDidPaint)
{
NS_ASSERTION(aView->GetViewManager() == this, "wrong view manager");
// damageRegion is the damaged area, in twips, relative to the view origin
nsRegion damageRegion = aRegion.ToAppUnits(AppUnitsPerDevPixel());
// move region from widget coordinates into view coordinates
damageRegion.MoveBy(-aView->ViewToWidgetOffset());
if (damageRegion.IsEmpty()) {
#ifdef DEBUG_roc
nsRect viewRect = aView->GetDimensions();
nsRect damageRect = damageRegion.GetBounds();
printf("XXX Damage rectangle (%d,%d,%d,%d) does not intersect the widget's view (%d,%d,%d,%d)!\n",
damageRect.x, damageRect.y, damageRect.width, damageRect.height,
viewRect.x, viewRect.y, viewRect.width, viewRect.height);
#endif
return;
}
nsIWidget *widget = aView->GetWidget();
if (!widget) {
return;
}
if (aView->ForcedRepaint() && IsRefreshDriverPaintingEnabled()) {
ProcessPendingUpdates();
aView->SetForcedRepaint(false);
}
NS_ASSERTION(!IsPainting(), "recursive painting not permitted");
if (IsPainting()) {
RootViewManager()->mRecursiveRefreshPending = true;
return;
}
{
nsAutoScriptBlocker scriptBlocker;
SetPainting(true);
NS_ASSERTION(GetDisplayRootFor(aView) == aView,
"Widgets that we paint must all be display roots");
if (mPresShell) {
#ifdef DEBUG_INVALIDATIONS
printf("--COMPOSITE-- %p\n", mPresShell);
#endif
if (IsRefreshDriverPaintingEnabled()) {
mPresShell->Paint(aView, damageRegion, nsIPresShell::PaintType_Composite,
false);
} else {
mPresShell->Paint(aView, damageRegion, nsIPresShell::PaintType_Full,
aWillSendDidPaint);
}
#ifdef DEBUG_INVALIDATIONS
printf("--ENDCOMPOSITE--\n");
#endif
mozilla::StartupTimeline::RecordOnce(mozilla::StartupTimeline::FIRST_PAINT);
}
SetPainting(false);
}
if (RootViewManager()->mRecursiveRefreshPending) {
RootViewManager()->mRecursiveRefreshPending = false;
InvalidateAllViews();
}
}
