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      1 /*
      2  * Copyright (C) 2013 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #ifndef SettingsDelegate_h
     32 #define SettingsDelegate_h
     33 
     34 #include "wtf/OwnPtr.h"
     35 #include "wtf/PassOwnPtr.h"
     36 
     37 namespace WebCore {
     38 
     39 class Page;
     40 class Settings;
     41 
     42 class SettingsDelegate {
     43 public:
     44     explicit SettingsDelegate(PassOwnPtr<Settings>);
     45     virtual ~SettingsDelegate();
     46 
     47     Settings* settings() const { return m_settings.get(); }
     48 
     49     // We currently use an enum instead of individual invalidation
     50     // functions to make generating Settings.in slightly easier.
     51     enum ChangeType {
     52         StyleChange,
     53         ViewportDescriptionChange,
     54         MediaTypeChange,
     55         DNSPrefetchingChange,
     56         MultisamplingChange,
     57         ImageLoadingChange,
     58         TextAutosizingChange,
     59         ScriptEnableChange,
     60         FontFamilyChange,
     61         AcceleratedCompositingChange,
     62     };
     63 
     64     virtual void settingsChanged(ChangeType) = 0;
     65 
     66 protected:
     67     OwnPtr<Settings> const m_settings;
     68 };
     69 
     70 } // namespace WebCore
     71 
     72 #endif // SettingsDelegate_h
     73