flutter_flutter/engine/core/dom/ShadowTreeStyleSheetCollection.cpp
Elliott Sprehn 586a535b7f Delete StyleSheetList and support code.
We don't need this since we don't expose the list of sheets from Document
or ShadowRoot in Sky. After removing this code I also simplified the
system and deleted StyleSheetCandidate and DocumentStyleSheetCollector
which don't really do anything anymore.

Even if we do want to add back a list of sheets later it won't need code
because we don't have a concept of a remote sheet like <link rel> did,
and we don't have to deal with non-CSS sheets.

R=ojan@chromium.org

Review URL: https://codereview.chromium.org/803673003
2014-12-12 15:47:57 -08:00

77 lines
3.2 KiB
C++

/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 1999 Antti Koivisto (koivisto@kde.org)
* (C) 2001 Dirk Mueller (mueller@kde.org)
* (C) 2006 Alexey Proskuryakov (ap@webkit.org)
* Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All rights reserved.
* Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
* Copyright (C) 2013 Google Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "sky/engine/config.h"
#include "sky/engine/core/dom/ShadowTreeStyleSheetCollection.h"
#include "sky/engine/core/css/CSSStyleSheet.h"
#include "sky/engine/core/css/resolver/StyleResolver.h"
#include "sky/engine/core/dom/Element.h"
#include "sky/engine/core/dom/StyleEngine.h"
#include "sky/engine/core/dom/shadow/ShadowRoot.h"
#include "sky/engine/core/html/HTMLStyleElement.h"
namespace blink {
ShadowTreeStyleSheetCollection::ShadowTreeStyleSheetCollection(ShadowRoot& shadowRoot)
: TreeScopeStyleSheetCollection(shadowRoot)
{
}
void ShadowTreeStyleSheetCollection::collectStyleSheets(StyleEngine* engine, StyleSheetCollection& collection)
{
DocumentOrderedList::iterator begin = m_styleSheetCandidateNodes.begin();
DocumentOrderedList::iterator end = m_styleSheetCandidateNodes.end();
for (DocumentOrderedList::iterator it = begin; it != end; ++it) {
Node* node = *it;
if (!isHTMLStyleElement(*node))
continue;
if (CSSStyleSheet* sheet = toHTMLStyleElement(node)->sheet())
collection.appendActiveStyleSheet(sheet);
}
}
void ShadowTreeStyleSheetCollection::updateActiveStyleSheets(StyleEngine* engine)
{
StyleSheetCollection collection;
collectStyleSheets(engine, collection);
if (StyleResolver* styleResolver = engine->resolver()) {
// We should not destroy StyleResolver when we find any stylesheet update in a shadow tree.
// In this case, we will reset rulesets created from style elements in the shadow tree.
styleResolver->resetAuthorStyle(treeScope());
styleResolver->removePendingAuthorStyleSheets(m_activeAuthorStyleSheets);
styleResolver->lazyAppendAuthorStyleSheets(0, collection.activeAuthorStyleSheets());
}
toShadowRoot(treeScope().rootNode()).host()->setNeedsStyleRecalc(SubtreeStyleChange);
collection.swap(*this);
updateUsesRemUnits();
}
}