1 /*

     2  * Copyright (C) 2006, 2007 Apple Inc.  All rights reserved.

     3  * Copyright (C) 2008 Collabora, Ltd.  All rights reserved.

     4  * Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies)

     5  *

     6  * Redistribution and use in source and binary forms, with or without

     7  * modification, are permitted provided that the following conditions

     8  * are met:

     9  * 1. Redistributions of source code must retain the above copyright

    10  *    notice, this list of conditions and the following disclaimer.

    11  * 2. Redistributions in binary form must reproduce the above copyright

    12  *    notice, this list of conditions and the following disclaimer in the

    13  *    documentation and/or other materials provided with the distribution.

    14  *

    15  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY

    16  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

    17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

    18  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR

    19  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

    20  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

    21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

    22  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

    23  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

    24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

    25  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    26  */

    27 

    28 #ifndef PluginDatabase_h

    29 #define PluginDatabase_h

    30 

    31 #include "PlatformString.h"

    32 #include "PluginPackage.h"

    33 #include "StringHash.h"

    34 

    35 #include <wtf/HashSet.h>

    36 #include <wtf/Vector.h>

    37 

    38 namespace WebCore {

    39     class Element;

    40     class Frame;

    41     class IntSize;

    42     class KURL;

    43     class PluginDatabaseClient;

    44     class PluginPackage;

    45 

    46     typedef HashSet<RefPtr<PluginPackage>, PluginPackageHash> PluginSet;

    47 

    48     class PluginDatabase : public Noncopyable {

    49     public:

    50         PluginDatabase();

    51 

    52         // The first call to installedPlugins creates the plugin database

    53         // and by default populates it with the plugins installed on the system.

    54         // For testing purposes, it is possible to not populate the database

    55         // automatically, as the plugins might affect the DRT results by

    56         // writing to a.o. stderr.

    57         static PluginDatabase* installedPlugins(bool populate = true);

    58 

    59         bool refresh();

    60         void clear();

    61         Vector<PluginPackage*> plugins() const;

    62         bool isMIMETypeRegistered(const String& mimeType);

    63         void addExtraPluginDirectory(const String&);

    64 

    65         static bool isPreferredPluginDirectory(const String& directory);

    66         static int preferredPluginCompare(const void*, const void*);

    67 

    68         PluginPackage* findPlugin(const KURL&, String& mimeType);

    69         PluginPackage* pluginForMIMEType(const String& mimeType);

    70         void setPreferredPluginForMIMEType(const String& mimeType, PluginPackage* plugin);

    71 

    72         void setPluginDirectories(const Vector<String>& directories)

    73         {

    74             clear();

    75             m_pluginDirectories = directories;

    76         }

    77 

    78         static Vector<String> defaultPluginDirectories();

    79         Vector<String> pluginDirectories() const { return m_pluginDirectories; }

    80 

    81         String MIMETypeForExtension(const String& extension) const;

    82 

    83     private:

    84         void getPluginPathsInDirectories(HashSet<String>&) const;

    85         void getDeletedPlugins(PluginSet&) const;

    86 

    87         // Returns whether the plugin was actually added or not (it won't be added if it's a duplicate of an existing plugin).

    88         bool add(PassRefPtr<PluginPackage>);

    89         void remove(PluginPackage*);

    90 

    91         Vector<String> m_pluginDirectories;

    92         HashSet<String> m_registeredMIMETypes;

    93         PluginSet m_plugins;

    94         HashMap<String, RefPtr<PluginPackage> > m_pluginsByPath;

    95         HashMap<String, time_t> m_pluginPathsWithTimes;

    96         HashMap<String, RefPtr<PluginPackage> > m_preferredPlugins;

    97     };

    98 

    99 } // namespace WebCore

   100 

   101 #endif