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      1 /*
      2  * Copyright (C) 2010 Apple 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
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
     14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
     17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     23  * THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef PluginQuirks_h
     27 #define PluginQuirks_h
     28 
     29 namespace WebKit {
     30 
     31 class PluginQuirks {
     32 public:
     33     enum PluginQuirk {
     34         // Mac specific quirks:
     35 #if PLUGIN_ARCHITECTURE(MAC)
     36         // The plug-in wants the call to getprogame() to return "WebKitPluginHost".
     37         // Adobe Flash Will not handle key down events otherwise.
     38         PrognameShouldBeWebKitPluginHost,
     39 
     40         // Supports receiving a paint event, even when using CoreAnimation rendering.
     41         SupportsSnapshotting,
     42 
     43         // Make the plug-in transparent if it has a "background" attribute set.
     44         // Microsoft Silverlight doesn't opt into transparency using NPN_SetValue and
     45         // NPPVpluginTransparentBool, so we'll always force if the plug-in has a "background"
     46         // attribute specified, regardless of it's value.
     47         // FIXME: We could get more fancy here and check for specific values that we know are
     48         // transparent.
     49         MakeTransparentIfBackgroundAttributeExists,
     50 
     51 #ifndef NP_NO_QUICKDRAW
     52         // Allow the plug-in to use the QuickDraw drawing model, since we know that the plug-in
     53         // will never paint or receive events. Used by the AppleConnect plug-in.
     54         AllowHalfBakedQuickDrawSupport,
     55 #endif
     56 
     57         // X11 specific quirks:
     58 #elif PLUGIN_ARCHITECTURE(X11)
     59         // Flash and npwrapper ask the browser about which GTK version does it use
     60         // and refuse to load and work if it is not GTK 2 so we need to fake it in
     61         // NPN_GetValue even when it is a lie.
     62         RequiresGTKToolKit,
     63 #endif
     64         NumPluginQuirks
     65     };
     66 
     67     PluginQuirks()
     68         : m_quirks(0)
     69     {
     70         COMPILE_ASSERT(sizeof(m_quirks) * 8 >= NumPluginQuirks, not_enough_room_for_quirks);
     71     }
     72 
     73     void add(PluginQuirk quirk)
     74     {
     75         ASSERT(quirk >= 0);
     76         ASSERT(quirk < NumPluginQuirks);
     77 
     78         m_quirks |= (1 << quirk);
     79     }
     80 
     81     bool contains(PluginQuirk quirk) const
     82     {
     83         return m_quirks & (1 << quirk);
     84     }
     85 
     86 private:
     87     uint32_t m_quirks;
     88 };
     89 
     90 } // namespace WebKit
     91 
     92 #endif // PluginQuirkSet_h
     93