b94857b322
* Add class DatabaseLocation. It contains a list of the MIME DB
directory paths plus methods to access type files.
* Move all low-level MIME DB access functions from
database_{support,access} to DatabaseLocation. All code that formerly
used those now requires a DatabaseLocation object. In BMimeType and in
the registrar the default object is used, but the low-level classes
can now be reused with different locations.
* Move get_icon_data() from database_access to database_support and
delete the former, which is now empty.
120 lines
3.3 KiB
C++
120 lines
3.3 KiB
C++
/*
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* Copyright 2013, Haiku, Inc. All Rights Reserved.
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* Distributed under the terms of the MIT License.
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*
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* Authors:
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* Ingo Weinhold <ingo_weinhold@gmx.de>
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*/
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#ifndef _MIME_DATABASE_LOCATION_H
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#define _MIME_DATABASE_LOCATION_H
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#include <Mime.h>
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#include <StringList.h>
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namespace BPrivate {
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namespace Storage {
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namespace Mime {
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class DatabaseLocation {
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public:
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DatabaseLocation();
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~DatabaseLocation();
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bool AddDirectory(const BString& directory);
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// paths
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const BStringList& Directories() const
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{ return fDirectories; }
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BString WritableDirectory() const
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{ return fDirectories.StringAt(0); }
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BString WritablePathForType(const char* type) const
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{ return _TypeToFilename(type, 0); }
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// opening type nodes
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status_t OpenType(const char* type, BNode& _node) const;
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status_t OpenOrCreateType(const char* type,
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BNode& _node, bool* _didCreate = NULL)
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const;
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// generic type attributes access
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ssize_t ReadAttribute(const char* type,
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const char* attribute, void* data,
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size_t length, type_code datatype) const;
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status_t ReadMessageAttribute(const char* type,
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const char* attribute, BMessage& _message)
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const;
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status_t ReadStringAttribute(const char* type,
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const char* attribute, BString& _string)
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const;
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status_t WriteAttribute(const char* type,
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const char* attribute, const void* data,
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size_t length, type_code datatype,
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bool* _didCreate) const;
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status_t WriteMessageAttribute(const char* type,
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const char* attribute,
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const BMessage& message, bool* _didCreate)
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const;
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status_t DeleteAttribute(const char* type,
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const char* attribute) const;
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// type attribute convenience getters
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status_t GetAppHint(const char* type, entry_ref& _ref);
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status_t GetAttributesInfo(const char* type,
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BMessage& _info);
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status_t GetShortDescription(const char* type,
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char* description);
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status_t GetLongDescription(const char* type,
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char* description);
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status_t GetFileExtensions(const char* type,
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BMessage& _extensions);
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status_t GetIcon(const char* type, BBitmap& _icon,
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icon_size size);
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status_t GetIcon(const char* type, uint8*& _data,
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size_t& _size);
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status_t GetIconForType(const char* type,
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const char* fileType, BBitmap& _icon,
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icon_size which);
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status_t GetIconForType(const char* type,
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const char* fileType, uint8*& _data,
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size_t& _size);
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status_t GetPreferredApp(const char* type,
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char* signature, app_verb verb);
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status_t GetSnifferRule(const char* type,
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BString& _result);
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status_t GetSupportedTypes(const char* type,
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BMessage& _types);
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bool IsInstalled(const char* type);
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private:
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BString _TypeToFilename(const char* type, int32 index)
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const;
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status_t _OpenType(const char* type, BNode& _node,
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int32& _index) const;
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status_t _CreateTypeNode(const char* type, BNode& _node)
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const;
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status_t _CopyTypeNode(BNode& source, const char* type,
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BNode& _target) const;
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private:
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BStringList fDirectories;
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};
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} // namespace Mime
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} // namespace Storage
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} // namespace BPrivate
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#endif // _MIME_DATABASE_LOCATION_H
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