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Bug 946929 - Add some debug logging to IsDOMPaintEventPending. r=mats

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This commit is contained in:
Matt Woodrow 2013-12-18 14:58:57 +13:00
parent 26e54b6c6a
commit b9a51038c4
1 changed files with 36 additions and 0 deletions
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36
layout/base/nsPresContext.cpp
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@ -123,12 +123,48 @@ nsPresContext::MakeColorPref(const nsString& aColor)
: NS_RGB(0, 0, 0);
}
static void DumpPresContextState(nsPresContext* aPC)
{
printf_stderr("PresContext(%p) ", aPC);
nsIURI* uri = aPC->Document()->GetDocumentURI();
if (uri) {
nsAutoCString uriSpec;
nsresult rv = uri->GetSpec(uriSpec);
if (NS_SUCCEEDED(rv)) {
printf_stderr("%s ", uriSpec.get());
}
}
nsIPresShell* shell = aPC->GetPresShell();
if (shell) {
printf_stderr("PresShell(%p) - IsDestroying(%i) IsFrozen(%i) IsActive(%i) IsVisible(%i) IsNeverPainting(%i) GetRootFrame(%p)",
shell->IsDestroying(),
shell->IsFrozen(),
shell->IsActive(),
shell->IsVisible(),
shell->IsNeverPainting(),
shell->GetRootFrame());
}
printf_stderr("\n");
}
bool
nsPresContext::IsDOMPaintEventPending()
{
if (mFireAfterPaintEvents) {
return true;
}
if (!GetDisplayRootPresContext() ||
!GetDisplayRootPresContext()->GetRootPresContext()) {
printf_stderr("Failed to find root pres context, dumping pres context and ancestors\n");
nsPresContext* pc = this;
for (;;) {
DumpPresContextState(pc);
nsPresContext* parent = pc->GetParentPresContext();
if (!parent)
break;
pc = parent;
}
}
if (GetDisplayRootPresContext()->GetRootPresContext()->mRefreshDriver->ViewManagerFlushIsPending()) {
// Since we're promising that there will be a MozAfterPaint event
// fired, we record an empty invalidation in case display list