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      1 /*
      2  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
      3  * Copyright 2014 The Chromium Authors. All rights reserved.
      4  *
      5  * This library is free software; you can redistribute it and/or
      6  * modify it under the terms of the GNU Library General Public
      7  * License as published by the Free Software Foundation; either
      8  * version 2 of the License, or (at your option) any later version.
      9  *
     10  * This library is distributed in the hope that it will be useful,
     11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     13  * Library General Public License for more details.
     14  *
     15  * You should have received a copy of the GNU Library General Public License
     16  * along with this library; see the file COPYING.LIB.  If not, write to
     17  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     18  * Boston, MA 02110-1301, USA.
     19  */
     20 
     21 #include "config.h"
     22 #include "core/page/InjectedStyleSheets.h"
     23 
     24 #include "core/dom/Document.h"
     25 #include "core/dom/StyleEngine.h"
     26 #include "core/frame/LocalFrame.h"
     27 #include "core/page/Page.h"
     28 #include "wtf/HashSet.h"
     29 
     30 namespace blink {
     31 
     32 // static
     33 InjectedStyleSheets& InjectedStyleSheets::instance()
     34 {
     35     DEFINE_STATIC_LOCAL(InjectedStyleSheets, instance, ());
     36     return instance;
     37 }
     38 
     39 void InjectedStyleSheets::add(const String& source, const Vector<String>& whitelist, StyleInjectionTarget injectIn)
     40 {
     41     m_entries.append(adoptPtr(new InjectedStyleSheetEntry(source, whitelist, injectIn)));
     42     invalidateInjectedStyleSheetCacheInAllFrames();
     43 }
     44 
     45 void InjectedStyleSheets::removeAll()
     46 {
     47     m_entries.clear();
     48     invalidateInjectedStyleSheetCacheInAllFrames();
     49 }
     50 
     51 void InjectedStyleSheets::invalidateInjectedStyleSheetCacheInAllFrames()
     52 {
     53     // Clear our cached sheets and have them just reparse.
     54     const HashSet<Page*>& pages = Page::ordinaryPages();
     55 
     56     HashSet<Page*>::const_iterator end = pages.end();
     57     for (HashSet<Page*>::const_iterator it = pages.begin(); it != end; ++it) {
     58         for (Frame* frame = (*it)->mainFrame(); frame; frame = frame->tree().traverseNext()) {
     59             if (frame->isLocalFrame())
     60                 toLocalFrame(frame)->document()->styleEngine()->invalidateInjectedStyleSheetCache();
     61         }
     62     }
     63 }
     64 
     65 } // namespace blink
     66