summaryrefslogtreecommitdiff
path: root/include/sfx2/Metadatable.hxx
blob: bd9f3bb659fe5bc2a8b359c99813ba83bfee5d59 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */
#ifndef INCLUDED_SFX2_METADATABLE_HXX
#define INCLUDED_SFX2_METADATABLE_HXX

#include <sal/config.h>

#include <sfx2/dllapi.h>

#include <cppuhelper/implbase.hxx>
#include <com/sun/star/rdf/XMetadatable.hpp>

#include <memory>


namespace com { namespace sun { namespace star {
    namespace frame { class XModel; }
} } }

namespace sfx2 {
    class IXmlIdRegistry;
}

namespace sfx2 {

class XmlIdRegistry;
class MetadatableUndo;


// XML ID handling ---------------------------------------------------


/// create a sfx2::XmlIdRegistryDocument or a sfx2::XmlIdRegistryClipboard
SFX2_DLLPUBLIC ::sfx2::IXmlIdRegistry *
createXmlIdRegistry(const bool i_DocIsClipboard);


/** base class for core objects that may have xml:id.

    <p>The interface of this class consists of 3 parts:
    <ul><li>implementations that are used by the MetadatableMixin
            below</li>
        <li>hooks to be called by the sw core whenever actions that are
            relevant to the uniqueness of xml:ids are taken (copying,
            splitting, merging, deletion, undo, etc.)</li>
        <li>abstract methods that are called by the implementation of the
            previous hooks</li></ul>
    </p>
 */
class SFX2_DLLPUBLIC Metadatable
{
public:
    Metadatable() : m_pReg(nullptr) {}

    // destructor calls RemoveMetadataReference
    virtual ~Metadatable();

    // for MetadatableMixin ----------------------------------------------

    css::beans::StringPair GetMetadataReference() const;
    void SetMetadataReference( const css::beans::StringPair & i_rReference);
    void EnsureMetadataReference();

    // hooks -------------------------------------------------------------

    // called from dtor!
    void RemoveMetadataReference();

    /** register this as a copy of i_rSource */
    void RegisterAsCopyOf(Metadatable const & i_rSource,
        const bool i_bCopyPrecedesSource = false);

    /** create an Undo Metadatable, which remembers this' reference */
    std::shared_ptr<MetadatableUndo> CreateUndo() const;
    std::shared_ptr<MetadatableUndo> CreateUndoForDelete();

    /** restore this from Undo Metadatable */
    void RestoreMetadata(std::shared_ptr<MetadatableUndo> const& i_pUndo);

    /** merge this and i_rOther into this */
    void JoinMetadatable(Metadatable const & i_rOther,
        const bool i_isMergedEmpty, const bool i_isOtherEmpty);

    // abstract methods --------------------------------------------------

    /** get the registry from the SwDoc */
    virtual ::sfx2::IXmlIdRegistry& GetRegistry() = 0;

    /** is this in a clipboard document? */
    virtual bool IsInClipboard() const = 0;

    /** is this in undo array? */
    virtual bool IsInUndo() const = 0;

    /** which stream is this in? true: content.xml; false: styles.xml */
    virtual bool IsInContent() const = 0;

    /** create XMetadatable from this.
        note: if IsInUndo or IsInClipboard return true,
        MakeUnoObject <em>must not</em> be called!
     */
    virtual css::uno::Reference< css::rdf::XMetadatable > MakeUnoObject() = 0;

private:
    Metadatable(const Metadatable&) = delete;
    Metadatable& operator=(const Metadatable&) = delete;

    friend class MetadatableClipboard;
    friend class MetadatableUndo;

    // note that Reg may be a XmlIdRegistryDocument or a XmlIdRegistryClipboard
    XmlIdRegistry* m_pReg; // null => no XmlId
};


/** base class for UNO objects that implement XMetadatable.

    <p>An instance of this base class is associated with an instance of
       Metadatable.</p>
 */
class SFX2_DLLPUBLIC MetadatableMixin :
    public cppu::WeakImplHelper<css::rdf::XMetadatable>
{

public:
    MetadatableMixin() {};

    // css::rdf::XNode:
    virtual OUString SAL_CALL getStringValue() override;

    // css::rdf::XURI:
    virtual OUString SAL_CALL getLocalName() override;
    virtual OUString SAL_CALL getNamespace() override;

    // css::rdf::XMetadatable:
    virtual css::beans::StringPair SAL_CALL getMetadataReference() override;
    virtual void SAL_CALL setMetadataReference(
        const css::beans::StringPair & i_rReference) override;
    virtual void SAL_CALL ensureMetadataReference() override;

protected:
    /// get the core object corresponding to this UNO object.
    virtual Metadatable * GetCoreObject() = 0;
    /// get the XModel for the document
    virtual css::uno::Reference< css::frame::XModel >
        GetModel() = 0;

};

} // namespace sfx2

#endif // INCLUDED_SFX2_METADATABLE_HXX

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */