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/*
* Copyright (C) 2010 Apple Inc. 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 INC. AND ITS CONTRIBUTORS ``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 INC. OR ITS 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 PluginQuirks_h
#define PluginQuirks_h
namespace WebKit {
class PluginQuirks {
public:
enum PluginQuirk {
// Mac specific quirks:
#if PLUGIN_ARCHITECTURE(MAC)
// The plug-in wants the call to getprogname() to return "WebKitPluginHost".
// Adobe Flash Will not handle key down events otherwise.
PrognameShouldBeWebKitPluginHost,
// Supports receiving a paint event, even when using CoreAnimation rendering.
SupportsSnapshotting,
// Make the plug-in opaque unless it has a "background" attribute set to a transparent color
// according to http://msdn.microsoft.com/en-us/library/cc838148(VS.95).aspx
// A non-existent "background" attribute is interpreted as the named color White which is opaque.
// Microsoft Silverlight doesn't opt into transparency using NPN_SetValue and
// NPPVpluginTransparentBool, so we'll always force it unless the plug-in has a "background"
// attribute that specifies a opaque color.
MakeOpaqueUnlessTransparentSilverlightBackgroundAttributeExists,
// Whether calling NPP_GetValue with NPPVpluginCoreAnimationLayer returns a retained Core Animation
// layer or not. According to the NPAPI specifications, plug-in shouldn't return a retained layer but
// WebKit1 expects a retained plug-in layer. We use this for Flash to avoid leaking OpenGL layers.
ReturnsRetainedCoreAnimationLayer,
// Whether NPP_GetValue with NPPVpluginScriptableNPObject returns a non-retained NPObject or not.
// Versions of Silverlight prior to 4 never retained the returned NPObject.
ReturnsNonRetainedScriptableNPObject,
// Whether the plug-in wants parameter names to be lowercase.
// <rdar://problem/8440903>: AppleConnect has a bug where it does not
// understand the parameter names specified in the <object> element that
// embeds its plug-in.
WantsLowercaseParameterNames,
// Whether to append Version/3.2.1 to the user-agent passed to the plugin
// This is necessary to disable Silverlight's workaround for a Safari 2 leak
// which is enabled if it doesn't find Version/3 in the user-agent.
AppendVersion3UserAgent,
// Whether all thrown NSExceptions should be leaked.
// <rdar://problem/13003470> Adobe Flash has a bug where exceptions are released too early.
LeakAllThrownNSExceptions,
#ifndef NP_NO_QUICKDRAW
// Allow the plug-in to use the QuickDraw drawing model, since we know that the plug-in
// will never paint or receive events. Used by the AppleConnect plug-in.
AllowHalfBakedQuickDrawSupport,
#endif
// X11 specific quirks:
#elif PLUGIN_ARCHITECTURE(X11)
// Flash and npwrapper ask the browser about which GTK version does it use
// and refuse to load and work if it is not GTK 2 so we need to fake it in
// NPN_GetValue even when it is a lie.
RequiresGTKToolKit,
// Some version 10 releases of Flash run under nspluginwrapper will completely
// freeze when sending right click events to them in windowed mode.
IgnoreRightClickInWindowlessMode,
// Windows specific quirks:
#elif PLUGIN_ARCHITECTURE(WIN)
// Whether NPN_UserAgent should always return a Mozilla user agent.
// Flash on Windows prior to version 10 only requests windowless plugins
// if we return a Mozilla user agent.
WantsMozillaUserAgent,
#endif
// This isn't really a quirk as much as the opposite of a quirk. By default, we don't send wheel events
// to plug-ins unless we know that they handle them correctly. Adobe Reader on Mac handles wheel events correctly.
WantsWheelEvents,
NumPluginQuirks
};
PluginQuirks()
: m_quirks(0)
{
COMPILE_ASSERT(sizeof(m_quirks) * 8 >= NumPluginQuirks, not_enough_room_for_quirks);
}
void add(PluginQuirk quirk)
{
ASSERT(quirk >= 0);
ASSERT(quirk < NumPluginQuirks);
m_quirks |= (1 << quirk);
}
bool contains(PluginQuirk quirk) const
{
return m_quirks & (1 << quirk);
}
private:
uint32_t m_quirks;
};
} // namespace WebKit
#endif // PluginQuirkSet_h
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