mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-01 06:35:42 +00:00
58 lines
1.5 KiB
C++
58 lines
1.5 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "DisplayItemScrollClip.h"
|
|
|
|
#include "DisplayItemClip.h"
|
|
|
|
namespace mozilla {
|
|
|
|
/* static */ bool
|
|
DisplayItemScrollClip::IsAncestor(const DisplayItemScrollClip* aAncestor,
|
|
const DisplayItemScrollClip* aDescendant)
|
|
{
|
|
if (!aAncestor) {
|
|
// null means root.
|
|
return true;
|
|
}
|
|
|
|
for (const DisplayItemScrollClip* sc = aDescendant; sc; sc = sc->mParent) {
|
|
if (sc == aAncestor) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
DisplayItemScrollClip::HasRoundedCorners() const
|
|
{
|
|
for (const DisplayItemScrollClip* scrollClip = this;
|
|
scrollClip; scrollClip = scrollClip->mParent) {
|
|
if (scrollClip->mClip->GetRoundedRectCount() > 0) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/* static */ nsCString
|
|
DisplayItemScrollClip::ToString(const DisplayItemScrollClip* aScrollClip)
|
|
{
|
|
nsAutoCString str;
|
|
for (const DisplayItemScrollClip* scrollClip = aScrollClip;
|
|
scrollClip; scrollClip = scrollClip->mParent) {
|
|
str.AppendPrintf("<%s>%s", scrollClip->mClip ? scrollClip->mClip->ToString().get() : "null",
|
|
scrollClip->mIsAsyncScrollable ? " [async-scrollable]" : "");
|
|
if (scrollClip->mParent) {
|
|
str.Append(", ");
|
|
}
|
|
}
|
|
return str;
|
|
}
|
|
|
|
} // namespace mozilla
|