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  • Committer: Bazaar Package Importer
  • Author(s): Jonathan Riddell
  • Date: 2005-12-06 17:59:19 UTC
  • mfrom: (1.1.3 upstream) (2.1.1 sarge)
  • Revision ID: james.westby@ubuntu.com-20051206175919-8yv9nfmw0pws6p52
Tags: 1.3.1-0ubuntu1
* Sync with Debian
* Edit kde.mk for .pot generation

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src/gvcore/externaltoolmanager.cpp
 
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// vim: set tabstop=4 shiftwidth=4 noexpandtab
 
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/*
 
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Gwenview - A simple image viewer for KDE
 
4
Copyright 2000-2004 Aur�lien G�teau
 
5
 
 
6
 This program is free software; you can redistribute it and/or
 
7
 modify it under the terms of the GNU General Public License
 
8
 as published by the Free Software Foundation; either version 2
 
9
 of the License, or (at your option) any later version.
 
10
 
 
11
 This program is distributed in the hope that it will be useful,
 
12
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 
13
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
14
 GNU General Public License for more details.
 
15
 
 
16
 You should have received a copy of the GNU General Public License
 
17
 along with this program; if not, write to the Free Software
 
18
 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
19
 
 
20
*/
 
21
// STL
 
22
#include <list>
 
23
 
 
24
// Qt
 
25
#include <qdir.h>
 
26
 
 
27
// KDE
 
28
#include <kdebug.h>
 
29
#include <kdesktopfile.h>
 
30
#include <kglobal.h>
 
31
#include <kservice.h>
 
32
#include <kstandarddirs.h>
 
33
#include <kurl.h>
 
34
 
 
35
// Local
 
36
#include "externaltoolcontext.h"
 
37
#include "externaltoolmanager.h"
 
38
namespace Gwenview {
 
39
 
 
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//#define ENABLE_LOG
 
41
#ifdef ENABLE_LOG
 
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#define LOG(x) kdDebug() << k_funcinfo << x << endl
 
43
#else
 
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#define LOG(x) ;
 
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#endif
 
46
 
 
47
// Helper functions for createContextInternal
 
48
inline bool mimeTypeMatches(const QString& candidate, const QString& reference) {
 
49
        if (reference=="*") return true;
 
50
 
 
51
        if (reference.right(1)=="*") {
 
52
                return candidate.startsWith(reference.left(reference.length()-1));
 
53
        } else {
 
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                return candidate==reference;
 
55
        }
 
56
}
 
57
 
 
58
inline bool isSubSetOf(const QStringList& subSet, const QStringList& set) {
 
59
        // Simple implementation, might need some optimization
 
60
        QStringList::ConstIterator itSubSet=subSet.begin();
 
61
        QStringList::ConstIterator itSetBegin=set.begin();
 
62
        QStringList::ConstIterator itSetEnd=set.end();
 
63
 
 
64
        for (; itSubSet!=subSet.end(); ++itSubSet) {
 
65
                bool matchFound=false;
 
66
                QStringList::ConstIterator itSet=itSetBegin;
 
67
                for (; itSet!=itSetEnd; ++itSet) {
 
68
                        if (mimeTypeMatches(*itSubSet, *itSet)) {
 
69
                                matchFound=true;
 
70
                                break;
 
71
                        }
 
72
                }
 
73
                if (!matchFound) {
 
74
                        return false;
 
75
                }
 
76
        }
 
77
        return true;
 
78
}
 
79
 
 
80
 
 
81
struct ExternalToolManagerPrivate {
 
82
        QDict<KDesktopFile> mDesktopFiles;
 
83
        QPtrList<KService> mServices;
 
84
        QString mUserToolDir;
 
85
 
 
86
        /**
 
87
         * Helper function for createContextInternal
 
88
         */
 
89
        static bool compareKServicePtrByName(const KService* s1, const KService* s2) {
 
90
                Q_ASSERT(s1);
 
91
                Q_ASSERT(s2);
 
92
                return s1->name() < s2->name();
 
93
        }
 
94
 
 
95
        ExternalToolContext* createContextInternal(
 
96
                QObject* parent, const KURL::List& urls, const QStringList& mimeTypes)
 
97
        {
 
98
                bool onlyOneURL=urls.size()==1;
 
99
                
 
100
                // Only add to selectionServices the services which can handle all the
 
101
                // different mime types present in the selection
 
102
                //
 
103
                // We use std::list instead of QValueList because it's not possible to
 
104
                // pass a sort functor to qHeapSort
 
105
                std::list<KService*> selectionServices;
 
106
                QPtrListIterator<KService> it(mServices);
 
107
                for (; it.current(); ++it) {
 
108
                        KService* service=it.current();
 
109
                        if (!onlyOneURL && !service->allowMultipleFiles()) {
 
110
                                continue;
 
111
                        }
 
112
                        
 
113
                        QStringList serviceTypes=service->serviceTypes();
 
114
                        if (isSubSetOf(mimeTypes, serviceTypes)) {
 
115
                                selectionServices.push_back(service);
 
116
                        }
 
117
                }
 
118
                selectionServices.sort(compareKServicePtrByName);
 
119
                
 
120
                return new ExternalToolContext(parent, selectionServices, urls);
 
121
        }
 
122
 
 
123
};
 
124
 
 
125
 
 
126
// Helper function for ctor
 
127
void loadDesktopFiles(QDict<KDesktopFile>& dict, const QString& dirString) {
 
128
        QDir dir(dirString);
 
129
        QStringList list=dir.entryList("*.desktop");
 
130
        QStringList::ConstIterator it=list.begin();
 
131
        for (; it!=list.end(); ++it) {
 
132
                KDesktopFile* df=new KDesktopFile( dir.filePath(*it) );
 
133
                dict.insert(*it, df);
 
134
        }
 
135
}
 
136
 
 
137
inline QString addSlash(const QString& _str) {
 
138
        QString str(_str);
 
139
        if (str.right(1)!="/") str.append('/');
 
140
        return str;
 
141
}
 
142
 
 
143
ExternalToolManager::ExternalToolManager() {
 
144
        d=new ExternalToolManagerPrivate;
 
145
 
 
146
        // Getting dirs
 
147
        d->mUserToolDir=KGlobal::dirs()->saveLocation("appdata", "tools");
 
148
        d->mUserToolDir=addSlash(d->mUserToolDir);
 
149
        Q_ASSERT(!d->mUserToolDir.isEmpty());
 
150
        LOG("d->mUserToolDir:" << d->mUserToolDir);
 
151
        
 
152
        QStringList dirs=KGlobal::dirs()->findDirs("appdata", "tools");
 
153
        LOG("dirs:" << dirs.join(","));
 
154
 
 
155
        // Loading desktop files
 
156
        QDict<KDesktopFile> systemDesktopFiles;
 
157
        QStringList::ConstIterator it;
 
158
        for (it=dirs.begin(); it!=dirs.end(); ++it) {
 
159
                if (addSlash(*it)==d->mUserToolDir) {
 
160
                        LOG("skipping " << *it);
 
161
                        continue;
 
162
                }
 
163
                LOG("loading system desktop files from " << *it);
 
164
                loadDesktopFiles(systemDesktopFiles, *it);
 
165
        }
 
166
        QDict<KDesktopFile> userDesktopFiles;
 
167
        loadDesktopFiles(userDesktopFiles, d->mUserToolDir);
 
168
 
 
169
        // Merge system and user desktop files into our KDesktopFile dictionary
 
170
        d->mDesktopFiles=systemDesktopFiles;
 
171
        d->mDesktopFiles.setAutoDelete(true);
 
172
        QDictIterator<KDesktopFile> itDict(userDesktopFiles);
 
173
        
 
174
        for (; itDict.current(); ++itDict) {
 
175
                QString name=itDict.currentKey();
 
176
                KDesktopFile* df=itDict.current();
 
177
                if (d->mDesktopFiles.find(name)) {
 
178
                        d->mDesktopFiles.remove(name);
 
179
                }
 
180
                if (df->readBoolEntry("Hidden")) {
 
181
                        delete df;
 
182
                } else {
 
183
                        d->mDesktopFiles.insert(name, df);
 
184
                }
 
185
        }
 
186
 
 
187
        d->mServices.setAutoDelete(true);
 
188
        updateServices();
 
189
}
 
190
 
 
191
 
 
192
ExternalToolManager::~ExternalToolManager() {
 
193
        delete d;
 
194
}
 
195
 
 
196
        
 
197
ExternalToolManager* ExternalToolManager::instance() {
 
198
        static ExternalToolManager manager;
 
199
        return &manager;
 
200
}
 
201
 
 
202
 
 
203
void ExternalToolManager::updateServices() {
 
204
        d->mServices.clear();
 
205
        QDictIterator<KDesktopFile> it(d->mDesktopFiles);
 
206
        for (; it.current(); ++it) {
 
207
                KDesktopFile* desktopFile=it.current();
 
208
                // If sync() is not called, KService does not read up to date content
 
209
                desktopFile->sync();
 
210
                KService* service=new KService(desktopFile);
 
211
                d->mServices.append(service);
 
212
        }
 
213
}
 
214
 
 
215
 
 
216
QDict<KDesktopFile>& ExternalToolManager::desktopFiles() const {
 
217
        return d->mDesktopFiles;
 
218
}
 
219
 
 
220
 
 
221
void ExternalToolManager::hideDesktopFile(KDesktopFile* desktopFile) {
 
222
        QFileInfo fi(desktopFile->fileName());
 
223
        QString name=QString("%1.desktop").arg( fi.baseName(true) );
 
224
        d->mDesktopFiles.take(name);
 
225
        
 
226
        if (desktopFile->isReadOnly()) {
 
227
                delete desktopFile;
 
228
                desktopFile=new KDesktopFile(d->mUserToolDir + "/" + name, false);
 
229
        }
 
230
        desktopFile->writeEntry("Hidden", true);
 
231
        desktopFile->sync();
 
232
        delete desktopFile;
 
233
}
 
234
 
 
235
 
 
236
KDesktopFile* ExternalToolManager::editSystemDesktopFile(const KDesktopFile* desktopFile) {
 
237
        Q_ASSERT(desktopFile);
 
238
        QFileInfo fi(desktopFile->fileName());
 
239
 
 
240
        QString name=fi.baseName(true);
 
241
        d->mDesktopFiles.remove(QString("%1.desktop").arg(name));
 
242
        
 
243
        return createUserDesktopFile(name);
 
244
}
 
245
 
 
246
 
 
247
KDesktopFile* ExternalToolManager::createUserDesktopFile(const QString& name) {
 
248
        Q_ASSERT(!name.isEmpty());
 
249
        KDesktopFile* desktopFile=new KDesktopFile(
 
250
                d->mUserToolDir + "/" + name + ".desktop", false);
 
251
        d->mDesktopFiles.insert(QString("%1.desktop").arg(name), desktopFile);  
 
252
 
 
253
        return desktopFile;
 
254
}
 
255
 
 
256
 
 
257
ExternalToolContext* ExternalToolManager::createContext(
 
258
        QObject* parent, const KFileItemList* items)
 
259
{
 
260
        KURL::List urls;
 
261
        QStringList mimeTypes;
 
262
 
 
263
        // Create our URL list and a list of the different mime types present in
 
264
        // the selection
 
265
        QPtrListIterator<KFileItem> it(*items);
 
266
        for (; it.current(); ++it) {
 
267
                urls.append(it.current()->url());
 
268
                QString mimeType=it.current()->mimetype();
 
269
                if (!mimeTypes.contains(mimeType)) {
 
270
                        mimeTypes.append(mimeType);
 
271
                }
 
272
        }
 
273
 
 
274
        return d->createContextInternal(parent, urls, mimeTypes);
 
275
}
 
276
 
 
277
 
 
278
ExternalToolContext* ExternalToolManager::createContext(
 
279
        QObject* parent, const KURL& url)
 
280
{
 
281
        KURL::List urls;
 
282
        QStringList mimeTypes;
 
283
        
 
284
        urls.append(url);
 
285
        QString mimeType=KMimeType::findByURL(url, 0, url.isLocalFile(), true)->name();
 
286
        mimeTypes.append(mimeType);
 
287
        
 
288
        return d->createContextInternal(parent, urls, mimeTypes);
 
289
}
 
290
 
 
291
 
 
292
} // namespace