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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #ifndef SVTOOLS_SOURCE_FILEPICKER_FPSMARTCONTENT_HXX
21 : #define SVTOOLS_SOURCE_FILEPICKER_FPSMARTCONTENT_HXX
22 :
23 : #include "fpinteraction.hxx"
24 :
25 : #include <com/sun/star/ucb/XCommandEnvironment.hpp>
26 : #include <com/sun/star/task/XInteractionHandler.hpp>
27 : #include <ucbhelper/content.hxx>
28 :
29 :
30 : namespace svt
31 : {
32 :
33 :
34 :
35 : //= SmartContent
36 :
37 : /** a "smart content" which basically wraps an UCB content, but caches some information
38 : so that repeatedly recreating it may be faster
39 : */
40 : class SmartContent
41 : {
42 : public:
43 : enum State
44 : {
45 : NOT_BOUND, // never bound
46 : UNKNOWN, // bound, but validity is unknown
47 : VALID, // bound to an URL, and valid
48 : INVALID // bound to an URL, and invalid
49 : };
50 :
51 : private:
52 : OUString m_sURL;
53 : ::ucbhelper::Content* m_pContent;
54 : State m_eState;
55 : ::com::sun::star::uno::Reference < ::com::sun::star::ucb::XCommandEnvironment > m_xCmdEnv;
56 : ::com::sun::star::uno::Reference < ::com::sun::star::task::XInteractionHandler > m_xOwnInteraction;
57 : ::svt::OFilePickerInteractionHandler* m_pOwnInteraction;
58 :
59 : private:
60 : enum Type { Folder, Document };
61 : /// checks if the currently bound content is a folder or document
62 : sal_Bool implIs( const OUString& _rURL, Type _eType );
63 :
64 : SmartContent( const SmartContent& _rSource ); // never implemented
65 : SmartContent& operator=( const SmartContent& _rSource ); // never implemented
66 :
67 : public:
68 : SmartContent();
69 : SmartContent( const OUString& _rInitialURL );
70 : ~SmartContent();
71 :
72 : public:
73 :
74 : /** create and set a specialized interaction handler at the internal used command environment.
75 :
76 : @param eInterceptions
77 : will be directly forwarded to OFilePickerInteractionHandler::enableInterceptions()
78 : */
79 : void enableOwnInteractionHandler(::svt::OFilePickerInteractionHandler::EInterceptedInteractions eInterceptions);
80 :
81 : /** disable the specialized interaction handler and use the global UI interaction handler only.
82 : */
83 : void enableDefaultInteractionHandler();
84 :
85 : /** return the internal used interaction handler object ...
86 : Because this pointer will be valid only, if the uno object is hold
87 : alive by its uno reference (and this reference is set on the
88 : command environment) we must return NULL, in case this environment does
89 : not exist!
90 : */
91 : ::svt::OFilePickerInteractionHandler* getOwnInteractionHandler() const;
92 :
93 : /** describes different types of interaction handlers
94 : */
95 : enum InteractionHandlerType
96 : {
97 : IHT_NONE,
98 : IHT_OWN,
99 : IHT_DEFAULT
100 : };
101 :
102 : /** return the type of the internal used interaction handler object ...
103 :
104 : @seealso InteractionHandlerType
105 : */
106 : InteractionHandlerType queryCurrentInteractionHandler() const;
107 :
108 : /** disable internal used interaction handler object ...
109 : */
110 : void disableInteractionHandler();
111 :
112 : /** returns the current state of the content
113 :
114 : @seealso State
115 : */
116 0 : inline State getState( ) const { return m_eState; }
117 :
118 : /** checks if the content is valid
119 : <p>Note that "not (is valid)" is not the same as "is invalid"</p>
120 : */
121 0 : inline sal_Bool isValid( ) const { return VALID == getState(); }
122 :
123 : /** checks if the content is valid
124 : <p>Note that "not (is invalid)" is not the same as "is valid"</p>
125 : */
126 0 : inline sal_Bool isInvalid( ) const { return INVALID == getState(); }
127 :
128 : /** checks if the content is bound
129 : */
130 0 : inline sal_Bool isBound( ) const { return NOT_BOUND != getState(); }
131 :
132 : /** returns the URL of the content
133 : */
134 0 : inline OUString getURL() const { return m_pContent ? m_pContent->getURL() : m_sURL; }
135 :
136 : /** (re)creates the content for the given URL
137 :
138 : <p>Note that getState will return either UNKNOWN or INVALID after the call returns,
139 : but never VALID. The reason is that there are content providers which allow to construct
140 : content objects, even if the respective contents are not accessible. They tell about this
141 : only upon working with the content object (e.g. when asking for the IsFolder).</p>
142 :
143 : @postcond
144 : <member>getState</member> does not return NOT_BOUND after the call returns
145 : */
146 : void bindTo( const OUString& _rURL );
147 :
148 : /** retrieves the title of the content
149 : @precond
150 : the content is bound and not invalid
151 : */
152 : void getTitle( OUString& /* [out] */ _rTitle );
153 :
154 : /** checks if the content has a parent folder
155 : @precond
156 : the content is bound and not invalid
157 : */
158 : sal_Bool hasParentFolder( );
159 :
160 : /** checks if sub folders below the content can be created
161 : @precond
162 : the content is bound and not invalid
163 : */
164 : sal_Bool canCreateFolder( );
165 :
166 : /** creates a new folder with the given title and return the corresponding URL.
167 :
168 : @return
169 : the URL of the created folder or an empty string
170 : */
171 : OUString createFolder( const OUString& _rTitle );
172 :
173 : /** binds to the given URL, checks whether or not it refers to a folder
174 :
175 : @postcond
176 : the content is not in the state UNKNOWN
177 : */
178 0 : inline sal_Bool isFolder( const OUString& _rURL )
179 : {
180 0 : return implIs( _rURL, Folder );
181 : }
182 :
183 : /** binds to the given URL, checks whether or not it refers to a document
184 :
185 : @postcond
186 : the content is not in the state UNKNOWN
187 : */
188 : inline sal_Bool isDocument( const OUString& _rURL )
189 : {
190 : return implIs( _rURL, Document );
191 : }
192 :
193 : /** checks if the content is existent (it is if and only if it is a document or a folder)
194 : */
195 0 : inline sal_Bool is( const OUString& _rURL )
196 : {
197 0 : return implIs( _rURL, Folder ) || implIs( _rURL, Document );
198 : }
199 :
200 0 : inline sal_Bool isFolder( ) { return isFolder( getURL() ); }
201 : inline sal_Bool isDocument( ) { return isDocument( getURL() ); }
202 : inline sal_Bool is( ) { return is( getURL() ); }
203 : };
204 :
205 :
206 : } // namespace svt
207 :
208 :
209 : #endif // SVTOOLS_SOURCE_FILEPICKER_FPSMARTCONTENT_HXX
210 :
211 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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