summaryrefslogtreecommitdiff
path: root/sd/source/ui/framework/configuration/ConfigurationController.cxx
blob: 25102a5428a4695584a549110e14de196f490fa8 (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
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
/* -*- 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 <framework/ConfigurationController.hxx>
#include <framework/Configuration.hxx>
#include <framework/FrameworkHelper.hxx>
#include <DrawController.hxx>
#include "ConfigurationUpdater.hxx"
#include "ConfigurationControllerBroadcaster.hxx"
#include "ConfigurationTracer.hxx"
#include "GenericConfigurationChangeRequest.hxx"
#include "ConfigurationControllerResourceManager.hxx"
#include "ResourceFactoryManager.hxx"
#include "UpdateRequest.hxx"
#include "ChangeRequestQueueProcessor.hxx"
#include "ConfigurationClassifier.hxx"
#include <com/sun/star/drawing/framework/XControllerManager.hpp>
#include <com/sun/star/frame/XController.hpp>

#include <sal/log.hxx>
#include <osl/mutex.hxx>
#include <vcl/svapp.hxx>
#include <memory>

using namespace ::com::sun::star;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::drawing::framework;
using ::sd::framework::FrameworkHelper;

namespace sd::framework {

//----- ConfigurationController::Implementation -------------------------------

class ConfigurationController::Implementation
{
public:
    Implementation (
        ConfigurationController& rController,
        const rtl::Reference<::sd::DrawController>& rxController);

    /** The Broadcaster class implements storing and calling of listeners.
    */
    std::shared_ptr<ConfigurationControllerBroadcaster> mpBroadcaster;

    /** The requested configuration which is modified (asynchronously) by
        calls to requestResourceActivation() and
        requestResourceDeactivation().  The mpConfigurationUpdater makes the
        current configuration reflect the content of this one.
    */
    css::uno::Reference<css::drawing::framework::XConfiguration> mxRequestedConfiguration;

    std::shared_ptr<ResourceFactoryManager> mpResourceFactoryContainer;

    std::shared_ptr<ConfigurationControllerResourceManager> mpResourceManager;

    std::shared_ptr<ConfigurationUpdater> mpConfigurationUpdater;

    /** The queue processor owns the queue of configuration change request
        objects and processes the objects.
    */
    std::unique_ptr<ChangeRequestQueueProcessor> mpQueueProcessor;

    std::shared_ptr<ConfigurationUpdaterLock> mpConfigurationUpdaterLock;

    sal_Int32 mnLockCount;
};

//===== ConfigurationController::Lock =========================================

ConfigurationController::Lock::Lock (const Reference<XConfigurationController>& rxController)
    : mxController(rxController)
{
    OSL_ASSERT(mxController.is());

    if (mxController.is())
        mxController->lock();
}

ConfigurationController::Lock::~Lock()
{
    if (mxController.is())
        mxController->unlock();
}

//===== ConfigurationController ===============================================

ConfigurationController::ConfigurationController(const rtl::Reference<::sd::DrawController>& rxController)
    : ConfigurationControllerInterfaceBase(m_aMutex)
    , mbIsDisposed(false)
{
    const SolarMutexGuard aSolarGuard;

    mpImplementation.reset(new Implementation(
        *this,
        rxController));
}

ConfigurationController::~ConfigurationController() noexcept
{
}

void SAL_CALL ConfigurationController::disposing()
{
    if (mpImplementation == nullptr)
        return;

    SAL_INFO("sd.fwk", __func__ << ": ConfigurationController::disposing");
    SAL_INFO("sd.fwk", __func__ << ":     requesting empty configuration");
    // To destroy all resources an empty configuration is requested and then,
    // synchronously, all resulting requests are processed.
    mpImplementation->mpQueueProcessor->Clear();
    restoreConfiguration(new Configuration(this,false));
    mpImplementation->mpQueueProcessor->ProcessUntilEmpty();
    SAL_INFO("sd.fwk", __func__ << ":     all requests processed");

    // Now that all resources have been deactivated, mark the controller as
    // disposed.
    mbIsDisposed = true;

    // Release the listeners.
    lang::EventObject aEvent;
    aEvent.Source = uno::Reference<uno::XInterface>(static_cast<cppu::OWeakObject*>(this));

    {
        const SolarMutexGuard aSolarGuard;
        mpImplementation->mpBroadcaster->DisposeAndClear();
    }

    mpImplementation->mpQueueProcessor.reset();
    mpImplementation->mxRequestedConfiguration = nullptr;
    mpImplementation.reset();
}

void ConfigurationController::ProcessEvent()
{
    if (mpImplementation != nullptr)
    {
        OSL_ASSERT(mpImplementation->mpQueueProcessor != nullptr);

        mpImplementation->mpQueueProcessor->ProcessOneEvent();
    }
}

void ConfigurationController::RequestSynchronousUpdate()
{
    if (mpImplementation == nullptr)
        return;
    if (mpImplementation->mpQueueProcessor == nullptr)
        return;
    mpImplementation->mpQueueProcessor->ProcessUntilEmpty();
}

//----- XConfigurationControllerBroadcaster -----------------------------------

void SAL_CALL ConfigurationController::addConfigurationChangeListener (
    const Reference<XConfigurationChangeListener>& rxListener,
    const OUString& rsEventType,
    const Any& rUserData)
{
    ::osl::MutexGuard aGuard (m_aMutex);

    ThrowIfDisposed();
    OSL_ASSERT(mpImplementation != nullptr);
    mpImplementation->mpBroadcaster->AddListener(rxListener, rsEventType, rUserData);
}

void SAL_CALL ConfigurationController::removeConfigurationChangeListener (
    const Reference<XConfigurationChangeListener>& rxListener)
{
    ::osl::MutexGuard aGuard (m_aMutex);

    ThrowIfDisposed();
    mpImplementation->mpBroadcaster->RemoveListener(rxListener);
}

void SAL_CALL ConfigurationController::notifyEvent (
    const ConfigurationChangeEvent& rEvent)
{
    ThrowIfDisposed();
    mpImplementation->mpBroadcaster->NotifyListeners(rEvent);
}

//----- XConfigurationController ----------------------------------------------

void SAL_CALL ConfigurationController::lock()
{
    OSL_ASSERT(mpImplementation != nullptr);
    OSL_ASSERT(mpImplementation->mpConfigurationUpdater != nullptr);

    ::osl::MutexGuard aGuard (m_aMutex);
    ThrowIfDisposed();

    ++mpImplementation->mnLockCount;
    if (mpImplementation->mpConfigurationUpdaterLock == nullptr)
        mpImplementation->mpConfigurationUpdaterLock
            = mpImplementation->mpConfigurationUpdater->GetLock();
}

void SAL_CALL ConfigurationController::unlock()
{
    ::osl::MutexGuard aGuard (m_aMutex);

    // Allow unlocking while the ConfigurationController is being disposed
    // (but not when that is done and the controller is disposed.)
    if (rBHelper.bDisposed)
        ThrowIfDisposed();

    OSL_ASSERT(mpImplementation->mnLockCount>0);
    --mpImplementation->mnLockCount;
    if (mpImplementation->mnLockCount == 0)
        mpImplementation->mpConfigurationUpdaterLock.reset();
}

void SAL_CALL ConfigurationController::requestResourceActivation (
    const Reference<XResourceId>& rxResourceId,
    ResourceActivationMode eMode)
{
    ::osl::MutexGuard aGuard (m_aMutex);
    ThrowIfDisposed();

    // Check whether we are being disposed.  This is handled differently
    // then being completely disposed because the first thing disposing()
    // does is to deactivate all remaining resources.  This is done via
    // regular methods which must not throw DisposedExceptions.  Therefore
    // we just return silently during that stage.
    if (rBHelper.bInDispose)
    {
        SAL_INFO("sd.fwk", __func__ << ": ConfigurationController::requestResourceActivation(): ignoring " <<
                FrameworkHelper::ResourceIdToString(rxResourceId));
        return;
    }

    SAL_INFO("sd.fwk", __func__ << ": ConfigurationController::requestResourceActivation() " <<
            FrameworkHelper::ResourceIdToString(rxResourceId));

    if (!rxResourceId.is())
        return;

    if (eMode == ResourceActivationMode_REPLACE)
    {
        // Get a list of the matching resources and create deactivation
        // requests for them.
        const Sequence<Reference<XResourceId> > aResourceList (
            mpImplementation->mxRequestedConfiguration->getResources(
                rxResourceId->getAnchor(),
                rxResourceId->getResourceTypePrefix(),
                AnchorBindingMode_DIRECT));

        for (const auto& rResource : aResourceList)
        {
            // Do not request the deactivation of the resource for which
            // this method was called.  Doing it would not change the
            // outcome but would result in unnecessary work.
            if (rxResourceId->compareTo(rResource) == 0)
                continue;

            // Request the deactivation of a resource and all resources
            // linked to it.
            requestResourceDeactivation(rResource);
        }
    }

    Reference<XConfigurationChangeRequest> xRequest(
        new GenericConfigurationChangeRequest(
            rxResourceId,
            GenericConfigurationChangeRequest::Activation));
    postChangeRequest(xRequest);
}

void SAL_CALL ConfigurationController::requestResourceDeactivation (
    const Reference<XResourceId>& rxResourceId)
{
    ::osl::MutexGuard aGuard (m_aMutex);
    ThrowIfDisposed();

    SAL_INFO("sd.fwk", __func__ << ": ConfigurationController::requestResourceDeactivation() " <<
                FrameworkHelper::ResourceIdToString(rxResourceId));

    if (!rxResourceId.is())
        return;

    // Request deactivation of all resources linked to the specified one
    // as well.
    const Sequence<Reference<XResourceId> > aLinkedResources (
        mpImplementation->mxRequestedConfiguration->getResources(
            rxResourceId,
            OUString(),
            AnchorBindingMode_DIRECT));
    for (const auto& rLinkedResource : aLinkedResources)
    {
        // We do not add deactivation requests directly but call this
        // method recursively, so that when one time there are resources
        // linked to linked resources, these are handled correctly, too.
        requestResourceDeactivation(rLinkedResource);
    }

    // Add a deactivation request for the specified resource.
    Reference<XConfigurationChangeRequest> xRequest(
        new GenericConfigurationChangeRequest(
            rxResourceId,
            GenericConfigurationChangeRequest::Deactivation));
    postChangeRequest(xRequest);
}

Reference<XResource> SAL_CALL ConfigurationController::getResource (
    const Reference<XResourceId>& rxResourceId)
{
    ::osl::MutexGuard aGuard (m_aMutex);
    ThrowIfDisposed();

    ConfigurationControllerResourceManager::ResourceDescriptor aDescriptor (
        mpImplementation->mpResourceManager->GetResource(rxResourceId));
    return aDescriptor.mxResource;
}

void SAL_CALL ConfigurationController::update()
{
    ::osl::MutexGuard aGuard (m_aMutex);
    ThrowIfDisposed();

    if (mpImplementation->mpQueueProcessor->IsEmpty())
    {
        // The queue is empty.  Add another request that does nothing but
        // asynchronously trigger a request for an update.
        mpImplementation->mpQueueProcessor->AddRequest(new UpdateRequest());
    }
    else
    {
        // The queue is not empty, so we rely on the queue processor to
        // request an update automatically when the queue becomes empty.
    }
}

sal_Bool SAL_CALL ConfigurationController::hasPendingRequests()
{
    ::osl::MutexGuard aGuard (m_aMutex);
    ThrowIfDisposed();

    return ! mpImplementation->mpQueueProcessor->IsEmpty();
}

void SAL_CALL ConfigurationController::postChangeRequest (
    const Reference<XConfigurationChangeRequest>& rxRequest)
{
    ::osl::MutexGuard aGuard (m_aMutex);
    ThrowIfDisposed();

    mpImplementation->mpQueueProcessor->AddRequest(rxRequest);
}

Reference<XConfiguration> SAL_CALL ConfigurationController::getRequestedConfiguration()
{
    ::osl::MutexGuard aGuard (m_aMutex);
    ThrowIfDisposed();

    if (mpImplementation->mxRequestedConfiguration.is())
        return Reference<XConfiguration>(
            mpImplementation->mxRequestedConfiguration->createClone(), UNO_QUERY);
    else
        return Reference<XConfiguration>();
}

Reference<XConfiguration> SAL_CALL ConfigurationController::getCurrentConfiguration()
{
    ::osl::MutexGuard aGuard (m_aMutex);
    ThrowIfDisposed();

    Reference<XConfiguration> xCurrentConfiguration(
        mpImplementation->mpConfigurationUpdater->GetCurrentConfiguration());
    if (xCurrentConfiguration.is())
        return Reference<XConfiguration>(xCurrentConfiguration->createClone(), UNO_QUERY);
    else
        return Reference<XConfiguration>();
}

/** The given configuration is restored by generating the appropriate set of
    activation and deactivation requests.
*/
void SAL_CALL ConfigurationController::restoreConfiguration (
    const Reference<XConfiguration>& rxNewConfiguration)
{
    ::osl::MutexGuard aGuard (m_aMutex);
    ThrowIfDisposed();

    // We will probably be making a couple of activation and deactivation
    // requests so lock the configuration controller and let it later update
    // all changes at once.
    std::shared_ptr<ConfigurationUpdaterLock> pLock (
        mpImplementation->mpConfigurationUpdater->GetLock());

    // Get lists of resources that are to be activated or deactivated.
    Reference<XConfiguration> xCurrentConfiguration (mpImplementation->mxRequestedConfiguration);
#if OSL_DEBUG_LEVEL >=1
    SAL_INFO("sd.fwk", __func__ << ": ConfigurationController::restoreConfiguration(");
    ConfigurationTracer::TraceConfiguration(rxNewConfiguration, "requested configuration");
    ConfigurationTracer::TraceConfiguration(xCurrentConfiguration, "current configuration");
#endif
    ConfigurationClassifier aClassifier (rxNewConfiguration, xCurrentConfiguration);
    aClassifier.Partition();
#if DEBUG_SD_CONFIGURATION_TRACE
    aClassifier.TraceResourceIdVector(
        "requested but not current resources:\n", aClassifier.GetC1minusC2());
    aClassifier.TraceResourceIdVector(
        "current but not requested resources:\n", aClassifier.GetC2minusC1());
    aClassifier.TraceResourceIdVector(
        "requested and current resources:\n", aClassifier.GetC1andC2());
#endif

    // Request the deactivation of resources that are not requested in the
    // new configuration.
    const ConfigurationClassifier::ResourceIdVector& rResourcesToDeactivate (
        aClassifier.GetC2minusC1());
    for (const auto& rxResource : rResourcesToDeactivate)
    {
        requestResourceDeactivation(rxResource);
    }

    // Request the activation of resources that are requested in the
    // new configuration but are not part of the current configuration.
    const ConfigurationClassifier::ResourceIdVector& rResourcesToActivate (
        aClassifier.GetC1minusC2());
    for (const auto& rxResource : rResourcesToActivate)
    {
        requestResourceActivation(rxResource, ResourceActivationMode_ADD);
    }

    pLock.reset();
}

//----- XResourceFactoryManager -----------------------------------------------

void SAL_CALL ConfigurationController::addResourceFactory(
    const OUString& sResourceURL,
    const Reference<XResourceFactory>& rxResourceFactory)
{
    ::osl::MutexGuard aGuard (m_aMutex);
    ThrowIfDisposed();
    mpImplementation->mpResourceFactoryContainer->AddFactory(sResourceURL, rxResourceFactory);
}

void SAL_CALL ConfigurationController::removeResourceFactoryForURL(
    const OUString& sResourceURL)
{
    ::osl::MutexGuard aGuard (m_aMutex);
    ThrowIfDisposed();
    mpImplementation->mpResourceFactoryContainer->RemoveFactoryForURL(sResourceURL);
}

void SAL_CALL ConfigurationController::removeResourceFactoryForReference(
    const Reference<XResourceFactory>& rxResourceFactory)
{
    ::osl::MutexGuard aGuard (m_aMutex);
    ThrowIfDisposed();
    mpImplementation->mpResourceFactoryContainer->RemoveFactoryForReference(rxResourceFactory);
}

Reference<XResourceFactory> SAL_CALL ConfigurationController::getResourceFactory (
    const OUString& sResourceURL)
{
    ::osl::MutexGuard aGuard (m_aMutex);
    ThrowIfDisposed();

    return mpImplementation->mpResourceFactoryContainer->GetFactory(sResourceURL);
}

void ConfigurationController::ThrowIfDisposed () const
{
    if (mbIsDisposed)
    {
        throw lang::DisposedException (u"ConfigurationController object has already been disposed"_ustr,
            const_cast<uno::XWeak*>(static_cast<const uno::XWeak*>(this)));
    }

    if (mpImplementation == nullptr)
    {
        OSL_ASSERT(mpImplementation != nullptr);
        throw RuntimeException(u"ConfigurationController not initialized"_ustr,
            const_cast<uno::XWeak*>(static_cast<const uno::XWeak*>(this)));
    }
}

//===== ConfigurationController::Implementation ===============================

ConfigurationController::Implementation::Implementation (
    ConfigurationController& rController,
    const rtl::Reference<::sd::DrawController>& rxController)
    : mpBroadcaster(std::make_shared<ConfigurationControllerBroadcaster>(&rController)),
      mxRequestedConfiguration(new Configuration(&rController, true)),
      mpResourceFactoryContainer(std::make_shared<ResourceFactoryManager>(rxController)),
      mpResourceManager(
          std::make_shared<ConfigurationControllerResourceManager>(mpResourceFactoryContainer,mpBroadcaster)),
      mpConfigurationUpdater(
          std::make_shared<ConfigurationUpdater>(mpBroadcaster, mpResourceManager,rxController)),
      mpQueueProcessor(new ChangeRequestQueueProcessor(mpConfigurationUpdater)),
      mnLockCount(0)
{
    mpQueueProcessor->SetConfiguration(mxRequestedConfiguration);
}

} // end of namespace sd::framework


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