summaryrefslogtreecommitdiffstats
path: root/framework/source/services/modulemanager.cxx
blob: 5c066d034d747acabda129fc85975e571054eec3 (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
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
/* -*- 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 .
 */

#include <sal/config.h>

#include <com/sun/star/frame/UnknownModuleException.hpp>
#include <com/sun/star/frame/XFrame.hpp>
#include <com/sun/star/frame/XController.hpp>
#include <com/sun/star/frame/XModel.hpp>
#include <com/sun/star/frame/XModule.hpp>
#include <com/sun/star/lang/XServiceInfo.hpp>
#include <com/sun/star/frame/XModuleManager2.hpp>
#include <com/sun/star/container/XNameReplace.hpp>
#include <com/sun/star/container/XContainerQuery.hpp>
#include <com/sun/star/uno/XComponentContext.hpp>

#include <cppuhelper/implbase.hxx>
#include <cppuhelper/supportsservice.hxx>
#include <comphelper/configurationhelper.hxx>
#include <comphelper/sequenceashashmap.hxx>
#include <comphelper/sequence.hxx>
#include <comphelper/enumhelper.hxx>

namespace {

class ModuleManager:
    public cppu::WeakImplHelper<
        css::lang::XServiceInfo,
        css::frame::XModuleManager2,
        css::container::XContainerQuery >
{
private:

    /** the global uno service manager.
        Must be used to create own needed services.
     */
    css::uno::Reference< css::uno::XComponentContext > m_xContext;

    /** points to the underlying configuration.
        This ModuleManager does not cache - it calls directly the
        configuration API!
      */
    css::uno::Reference< css::container::XNameAccess > m_xCFG;

public:

    explicit ModuleManager(const css::uno::Reference< css::uno::XComponentContext >& xContext);

    ModuleManager(const ModuleManager&) = delete;
    ModuleManager& operator=(const ModuleManager&) = delete;

    // XServiceInfo
    virtual OUString SAL_CALL getImplementationName() override;

    virtual sal_Bool SAL_CALL supportsService(
        OUString const & ServiceName) override;

    virtual css::uno::Sequence< OUString > SAL_CALL
    getSupportedServiceNames() override;

    // XModuleManager
    virtual OUString SAL_CALL identify(const css::uno::Reference< css::uno::XInterface >& xModule) override;

    // XNameReplace
    virtual void SAL_CALL replaceByName(const OUString& sName ,
                                        const css::uno::Any&   aValue) override;

    // XNameAccess
    virtual css::uno::Any SAL_CALL getByName(const OUString& sName) override;

    virtual css::uno::Sequence< OUString > SAL_CALL getElementNames() override;

    virtual sal_Bool SAL_CALL hasByName(const OUString& sName) override;

    // XElementAccess
    virtual css::uno::Type SAL_CALL getElementType() override;

    virtual sal_Bool SAL_CALL hasElements() override;

    // XContainerQuery
    virtual css::uno::Reference< css::container::XEnumeration > SAL_CALL createSubSetEnumerationByQuery(const OUString& sQuery) override;

    virtual css::uno::Reference< css::container::XEnumeration > SAL_CALL createSubSetEnumerationByProperties(const css::uno::Sequence< css::beans::NamedValue >& lProperties) override;

private:

    /** @short  makes the real identification of the module.

        @descr  It checks for the optional but preferred interface
                XModule first. If this module does not exists at the
                given component it tries to use XServiceInfo instead.

                Note: This method try to locate a suitable module name.
                Nothing else. Selecting the right component and throwing suitable
                exceptions must be done outside.

        @see    identify()

        @param  xComponent
                the module for identification.

        @return The identifier of the given module.
                Can be empty if given component is not a real module !

        @threadsafe
     */
    OUString implts_identify(const css::uno::Reference< css::uno::XInterface >& xComponent);
};

ModuleManager::ModuleManager(const css::uno::Reference< css::uno::XComponentContext >& xContext)
    : m_xContext(xContext)
{
    m_xCFG.set( comphelper::ConfigurationHelper::openConfig(
                m_xContext, "/org.openoffice.Setup/Office/Factories",
                comphelper::EConfigurationModes::ReadOnly ),
            css::uno::UNO_QUERY_THROW );
}

OUString ModuleManager::getImplementationName()
{
    return "com.sun.star.comp.framework.ModuleManager";
}

sal_Bool ModuleManager::supportsService(OUString const & ServiceName)
{
    return cppu::supportsService(this, ServiceName);
}

css::uno::Sequence< OUString > ModuleManager::getSupportedServiceNames()
{
    return { "com.sun.star.frame.ModuleManager" };
}

OUString SAL_CALL ModuleManager::identify(const css::uno::Reference< css::uno::XInterface >& xModule)
{
    // valid parameter?
    css::uno::Reference< css::frame::XFrame >      xFrame     (xModule, css::uno::UNO_QUERY);
    css::uno::Reference< css::awt::XWindow >       xWindow    (xModule, css::uno::UNO_QUERY);
    css::uno::Reference< css::frame::XController > xController(xModule, css::uno::UNO_QUERY);
    css::uno::Reference< css::frame::XModel >      xModel     (xModule, css::uno::UNO_QUERY);

    if (
        (!xFrame.is()     ) &&
        (!xWindow.is()    ) &&
        (!xController.is()) &&
        (!xModel.is()     )
       )
    {
        throw css::lang::IllegalArgumentException(
                "Given module is not a frame nor a window, controller or model.",
                static_cast< ::cppu::OWeakObject* >(this),
                1);
    }

    if (xFrame.is())
    {
        xController = xFrame->getController();
        xWindow     = xFrame->getComponentWindow();
    }
    if (xController.is())
        xModel = xController->getModel();

    // modules are implemented by the deepest component in hierarchy ...
    // Means: model -> controller -> window
    // No fallbacks to higher components are allowed !
    // Note : A frame provides access to module components only ... but it's not a module by himself.

    OUString sModule;
    if (xModel.is())
        sModule = implts_identify(xModel);
    else if (xController.is())
        sModule = implts_identify(xController);
    else if (xWindow.is())
        sModule = implts_identify(xWindow);

    if (sModule.isEmpty())
        throw css::frame::UnknownModuleException(
                "Can not find suitable module for the given component.",
                static_cast< ::cppu::OWeakObject* >(this));

    return sModule;
}

void SAL_CALL ModuleManager::replaceByName(const OUString& sName ,
                                           const css::uno::Any&   aValue)
{
    ::comphelper::SequenceAsHashMap lProps(aValue);
    if (lProps.empty() )
    {
        throw css::lang::IllegalArgumentException(
                "No properties given to replace part of module.",
                static_cast< cppu::OWeakObject * >(this),
                2);
    }

    // get access to the element
    // Note: Don't use impl_getConfig() method here. Because it creates a readonly access only, further
    // it cache it as a member of this module manager instance. If we change some props there ... but don't
    // flush changes (because an error occurred) we will read them later. If we use a different config access
    // we can close it without a flush... and our read data won't be affected .-)
    css::uno::Reference< css::uno::XInterface >         xCfg      = ::comphelper::ConfigurationHelper::openConfig(
                                                                        m_xContext,
                                                                        "/org.openoffice.Setup/Office/Factories",
                                                                        ::comphelper::EConfigurationModes::Standard);
    css::uno::Reference< css::container::XNameAccess >  xModules (xCfg, css::uno::UNO_QUERY_THROW);
    css::uno::Reference< css::container::XNameReplace > xModule  ;

    xModules->getByName(sName) >>= xModule;
    if (!xModule.is())
    {
        throw css::uno::RuntimeException(
                "Was not able to get write access to the requested module entry inside configuration.",
                static_cast< cppu::OWeakObject * >(this));
    }

    for (auto const& prop : lProps)
    {
        // let "NoSuchElementException" out ! We support the same API ...
        // and without a flush() at the end all changed data before will be ignored !
        xModule->replaceByName(prop.first, prop.second);
    }

    ::comphelper::ConfigurationHelper::flush(xCfg);
}

css::uno::Any SAL_CALL ModuleManager::getByName(const OUString& sName)
{
    // get access to the element
    css::uno::Reference< css::container::XNameAccess > xModule;
    m_xCFG->getByName(sName) >>= xModule;
    if (!xModule.is())
    {
        throw css::uno::RuntimeException(
                "Was not able to get write access to the requested module entry inside configuration.",
                static_cast< cppu::OWeakObject * >(this));
    }

    // convert it to seq< PropertyValue >
    const css::uno::Sequence< OUString > lPropNames = xModule->getElementNames();
    comphelper::SequenceAsHashMap lProps;

    lProps[OUString("ooSetupFactoryModuleIdentifier")] <<= sName;
    for (const OUString& sPropName : lPropNames)
    {
        lProps[sPropName] = xModule->getByName(sPropName);
    }

    return css::uno::makeAny(lProps.getAsConstPropertyValueList());
}

css::uno::Sequence< OUString > SAL_CALL ModuleManager::getElementNames()
{
    return m_xCFG->getElementNames();
}

sal_Bool SAL_CALL ModuleManager::hasByName(const OUString& sName)
{
    return m_xCFG->hasByName(sName);
}

css::uno::Type SAL_CALL ModuleManager::getElementType()
{
    return cppu::UnoType<css::uno::Sequence< css::beans::PropertyValue >>::get();
}

sal_Bool SAL_CALL ModuleManager::hasElements()
{
    return m_xCFG->hasElements();
}

css::uno::Reference< css::container::XEnumeration > SAL_CALL ModuleManager::createSubSetEnumerationByQuery(const OUString&)
{
    return css::uno::Reference< css::container::XEnumeration >();
}

css::uno::Reference< css::container::XEnumeration > SAL_CALL ModuleManager::createSubSetEnumerationByProperties(const css::uno::Sequence< css::beans::NamedValue >& lProperties)
{
    ::comphelper::SequenceAsHashMap lSearchProps(lProperties);
    const css::uno::Sequence< OUString > lModules = getElementNames();
    ::std::vector< css::uno::Any > lResult;

    for (const OUString& rModuleName : lModules)
    {
        try
        {
            ::comphelper::SequenceAsHashMap lModuleProps = getByName(rModuleName);
            if (lModuleProps.match(lSearchProps))
                lResult.push_back(css::uno::makeAny(lModuleProps.getAsConstPropertyValueList()));
        }
        catch(const css::uno::Exception&)
        {
        }
    }

    ::comphelper::OAnyEnumeration*                      pEnum =
                 new ::comphelper::OAnyEnumeration(comphelper::containerToSequence(lResult));
    css::uno::Reference< css::container::XEnumeration > xEnum(static_cast< css::container::XEnumeration* >(pEnum), css::uno::UNO_QUERY_THROW);
    return xEnum;
}

OUString ModuleManager::implts_identify(const css::uno::Reference< css::uno::XInterface >& xComponent)
{
    // Search for an optional (!) interface XModule first.
    // It's used to overrule an existing service name. Used e.g. by our database form designer
    // which uses a writer module internally.
    css::uno::Reference< css::frame::XModule > xModule(xComponent, css::uno::UNO_QUERY);
    if (xModule.is())
        return xModule->getIdentifier();

    // detect modules in a generic way...
    // comparing service names with configured entries...
    css::uno::Reference< css::lang::XServiceInfo > xInfo(xComponent, css::uno::UNO_QUERY);
    if (!xInfo.is())
        return OUString();

    const css::uno::Sequence< OUString > lKnownModules = getElementNames();
    for (const OUString& rName : lKnownModules)
    {
        if (xInfo->supportsService(rName))
            return rName;
    }

    return OUString();
}

struct Instance {
    explicit Instance(
        css::uno::Reference<css::uno::XComponentContext> const & context):
        instance(static_cast<cppu::OWeakObject *>(new ModuleManager(context)))
    {
    }

    css::uno::Reference<css::uno::XInterface> instance;
};

struct Singleton:
    public rtl::StaticWithArg<
        Instance, css::uno::Reference<css::uno::XComponentContext>, Singleton>
{};

}

extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface *
com_sun_star_comp_framework_ModuleManager_get_implementation(
    css::uno::XComponentContext *context,
    css::uno::Sequence<css::uno::Any> const &)
{
    return cppu::acquire(static_cast<cppu::OWeakObject *>(
                Singleton::get(context).instance.get()));
}

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