/src/mozilla-central/layout/style/DocumentStyleRootIterator.cpp
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1 | | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
2 | | /* vim: set ts=8 sts=2 et sw=2 tw=80: */ |
3 | | /* This Source Code Form is subject to the terms of the Mozilla Public |
4 | | * License, v. 2.0. If a copy of the MPL was not distributed with this file, |
5 | | * You can obtain one at http://mozilla.org/MPL/2.0/. */ |
6 | | |
7 | | #include "DocumentStyleRootIterator.h" |
8 | | |
9 | | #include "mozilla/dom/Element.h" |
10 | | #include "nsContentUtils.h" |
11 | | |
12 | | namespace mozilla { |
13 | | |
14 | | DocumentStyleRootIterator::DocumentStyleRootIterator(nsINode* aStyleRoot) |
15 | | : mPosition(0) |
16 | 0 | { |
17 | 0 | MOZ_COUNT_CTOR(DocumentStyleRootIterator); |
18 | 0 | MOZ_ASSERT(aStyleRoot); |
19 | 0 | if (aStyleRoot->IsElement()) { |
20 | 0 | mStyleRoots.AppendElement(aStyleRoot->AsElement()); |
21 | 0 | return; |
22 | 0 | } |
23 | 0 | |
24 | 0 | nsIDocument* doc = aStyleRoot->OwnerDoc(); |
25 | 0 | MOZ_ASSERT(doc == aStyleRoot); |
26 | 0 | if (Element* root = doc->GetRootElement()) { |
27 | 0 | mStyleRoots.AppendElement(root); |
28 | 0 | } |
29 | 0 | nsContentUtils::AppendDocumentLevelNativeAnonymousContentTo( |
30 | 0 | doc, mStyleRoots); |
31 | 0 | } |
32 | | |
33 | | Element* |
34 | | DocumentStyleRootIterator::GetNextStyleRoot() |
35 | 0 | { |
36 | 0 | for (;;) { |
37 | 0 | if (mPosition >= mStyleRoots.Length()) { |
38 | 0 | return nullptr; |
39 | 0 | } |
40 | 0 | |
41 | 0 | nsIContent* next = mStyleRoots[mPosition]; |
42 | 0 | ++mPosition; |
43 | 0 |
|
44 | 0 | if (next->IsElement()) { |
45 | 0 | return next->AsElement(); |
46 | 0 | } |
47 | 0 | } |
48 | 0 | } |
49 | | |
50 | | } // namespace mozilla |