/*
 * Copyright (C) 2009 Apple Inc. All rights reserved.
 * Copyright 2014 The Chromium Authors. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef InjectedStyleSheets_h
#define InjectedStyleSheets_h

#include "wtf/Vector.h"
#include "wtf/text/WTFString.h"

namespace blink {

enum StyleInjectionTarget { InjectStyleInAllFrames, InjectStyleInTopFrameOnly };

class InjectedStyleSheetEntry {
    WTF_MAKE_FAST_ALLOCATED;
public:
    InjectedStyleSheetEntry(const String& source, const Vector<String>& whitelist, StyleInjectionTarget injectedFrames)
        : m_source(source)
        , m_whitelist(whitelist)
        , m_injectedFrames(injectedFrames)
    {
    }

    const String& source() const { return m_source; }
    const Vector<String>& whitelist() const { return m_whitelist; }
    StyleInjectionTarget injectedFrames() const { return m_injectedFrames; }

private:
    String m_source;
    Vector<String> m_whitelist;
    StyleInjectionTarget m_injectedFrames;
};

using InjectedStyleSheetEntryVector = Vector<OwnPtr<InjectedStyleSheetEntry>>;

class InjectedStyleSheets {
public:
    static InjectedStyleSheets& instance();

    void add(const String& source, const Vector<String>& whitelist, StyleInjectionTarget);
    void removeAll();

    const InjectedStyleSheetEntryVector& entries() const { return m_entries; }

private:
    InjectedStyleSheets() { }
    void invalidateInjectedStyleSheetCacheInAllFrames();

    InjectedStyleSheetEntryVector m_entries;
};

} // namespace blink

#endif // InjectedStyleSheets_h
