| /* |
| * 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, 2011, 2012 Apple Inc. All rights reserved. |
| * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/) |
| * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved. |
| * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies) |
| * Copyright (C) Research In Motion Limited 2010-2011. 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/core/dom/StyleEngine.h" |
| |
| #include "sky/engine/core/css/CSSFontSelector.h" |
| #include "sky/engine/core/css/CSSStyleSheet.h" |
| #include "sky/engine/core/css/FontFace.h" |
| #include "sky/engine/core/css/FontFaceCache.h" |
| #include "sky/engine/core/css/StyleSheetContents.h" |
| #include "sky/engine/core/dom/Document.h" |
| #include "sky/engine/core/dom/Element.h" |
| #include "sky/engine/core/dom/ElementTraversal.h" |
| #include "sky/engine/core/frame/Settings.h" |
| #include "sky/engine/core/page/Page.h" |
| #include "sky/engine/core/rendering/RenderView.h" |
| |
| namespace blink { |
| |
| StyleEngine::StyleEngine(Document& document) |
| : m_document(&document) |
| , m_resolver(adoptPtr(new StyleResolver(*m_document))) |
| , m_fontSelector(CSSFontSelector::create(&document)) |
| { |
| m_fontSelector->registerForInvalidationCallbacks(this); |
| m_activeTreeScopes.add(&document); |
| } |
| |
| StyleEngine::~StyleEngine() |
| { |
| m_fontSelector->clearDocument(); |
| m_fontSelector->unregisterForInvalidationCallbacks(this); |
| } |
| |
| void StyleEngine::addTreeScope(TreeScope& scope) |
| { |
| m_activeTreeScopes.add(&scope); |
| } |
| |
| void StyleEngine::removeTreeScope(TreeScope& scope) |
| { |
| m_activeTreeScopes.remove(&scope); |
| } |
| |
| void StyleEngine::updateActiveStyleSheets() |
| { |
| ASSERT(!m_document->inStyleRecalc()); |
| ASSERT(m_resolver); |
| |
| for (TreeScope* treeScope : m_activeTreeScopes) |
| treeScope->scopedStyleResolver().updateActiveStyleSheets(); |
| |
| updateDocumentFonts(); |
| } |
| |
| void StyleEngine::resolverChanged() |
| { |
| if (!m_document->isActive()) |
| return; |
| updateActiveStyleSheets(); |
| } |
| |
| void StyleEngine::updateDocumentFonts() |
| { |
| const auto& sheets = m_document->scopedStyleResolver().authorStyleSheets(); |
| |
| for (const auto& sheet : sheets) { |
| RuleSet& ruleSet = sheet->contents()->ensureRuleSet(); |
| for (const auto& rule : ruleSet.fontFaceRules()) { |
| if (RefPtr<FontFace> fontFace = FontFace::create(m_document, rule)) |
| m_fontSelector->fontFaceCache()->add(m_fontSelector.get(), rule, fontFace); |
| } |
| if (!ruleSet.fontFaceRules().isEmpty()) |
| m_resolver->invalidateMatchedPropertiesCache(); |
| } |
| |
| m_document->renderView()->style()->font().update(m_fontSelector.get()); |
| } |
| |
| void StyleEngine::clearFontCache() |
| { |
| m_fontSelector->fontFaceCache()->clearCSSConnected(); |
| m_resolver->invalidateMatchedPropertiesCache(); |
| } |
| |
| void StyleEngine::updateGenericFontFamilySettings() |
| { |
| // FIXME: we should not update generic font family settings when |
| // document is inactive. |
| ASSERT(m_document->isActive()); |
| |
| m_fontSelector->updateGenericFontFamilySettings(*m_document); |
| m_resolver->invalidateMatchedPropertiesCache(); |
| } |
| |
| PassRefPtr<CSSStyleSheet> StyleEngine::createSheet(Element* e, const String& text) |
| { |
| RefPtr<CSSStyleSheet> styleSheet; |
| AtomicString textContent(text); |
| |
| HashMap<AtomicString, StyleSheetContents*>::AddResult result = m_textToSheetCache.add(textContent, nullptr); |
| if (result.isNewEntry || !result.storedValue->value) { |
| styleSheet = CSSStyleSheet::create(e, KURL()); |
| styleSheet->contents()->parseString(text); |
| if (result.isNewEntry) { |
| result.storedValue->value = styleSheet->contents(); |
| m_sheetToTextCache.add(styleSheet->contents(), textContent); |
| } |
| } else { |
| StyleSheetContents* contents = result.storedValue->value; |
| ASSERT(contents); |
| styleSheet = CSSStyleSheet::create(contents, e); |
| } |
| |
| ASSERT(styleSheet); |
| return styleSheet; |
| } |
| |
| void StyleEngine::removeSheet(StyleSheetContents* contents) |
| { |
| HashMap<StyleSheetContents*, AtomicString>::iterator it = m_sheetToTextCache.find(contents); |
| if (it == m_sheetToTextCache.end()) |
| return; |
| |
| m_textToSheetCache.remove(it->value); |
| m_sheetToTextCache.remove(contents); |
| } |
| |
| void StyleEngine::fontsNeedUpdate(CSSFontSelector*) |
| { |
| m_resolver->invalidateMatchedPropertiesCache(); |
| m_document->setNeedsStyleRecalc(SubtreeStyleChange); |
| } |
| |
| } |