1 /**************************************************************
2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
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15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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20 *************************************************************/
21
22
23
24 #include "precompiled_sd.hxx"
25
26 #include "SlideShowRestarter.hxx"
27 #include "framework/ConfigurationController.hxx"
28 #include "framework/FrameworkHelper.hxx"
29 #include <comphelper/processfactory.hxx>
30 #include <sfx2/dispatch.hxx>
31 #include <sfx2/viewfrm.hxx>
32 #include <svx/svxids.hrc>
33 #include <vcl/svapp.hxx>
34 #include <boost/bind.hpp>
35
36 using namespace ::com::sun::star::uno;
37 using namespace ::com::sun::star::lang;
38 using ::rtl::OUString;
39 using ::sd::framework::FrameworkHelper;
40
41 #define C2U(x) OUString( RTL_CONSTASCII_USTRINGPARAM(x) )
42
43 namespace sd {
44
SlideShowRestarter(const::rtl::Reference<SlideShow> & rpSlideShow,ViewShellBase * pViewShellBase)45 SlideShowRestarter::SlideShowRestarter (
46 const ::rtl::Reference<SlideShow>& rpSlideShow,
47 ViewShellBase* pViewShellBase)
48 : mnEventId(0),
49 mpSlideShow(rpSlideShow),
50 mpViewShellBase(pViewShellBase),
51 mnDisplayCount(GetDisplayCount()),
52 mpDispatcher(pViewShellBase->GetViewFrame()->GetDispatcher()),
53 mnCurrentSlideNumber(0)
54 {
55 }
56
57
58
59
~SlideShowRestarter(void)60 SlideShowRestarter::~SlideShowRestarter (void)
61 {
62 }
63
64
65
66
Restart(void)67 void SlideShowRestarter::Restart (void)
68 {
69 // Prevent multiple and concurrently restarts.
70 if (mnEventId != 0)
71 return;
72
73 // Remember the current slide in order to restore it after the slide
74 // show has been restarted.
75 if (mpSlideShow.is())
76 mnCurrentSlideNumber = mpSlideShow->getCurrentPageNumber();
77
78 // Remember a shared pointer to this object to prevent its destruction
79 // before the whole restarting process has finished.
80 mpSelf = shared_from_this();
81
82 // We do not know in what situation this method was called. So, in
83 // order to be able to cleanly stop the presentation, we do that
84 // asynchronously.
85 mnEventId = Application::PostUserEvent(
86 LINK(this, SlideShowRestarter, EndPresentation));
87 }
88
89
90
91
GetDisplayCount(void)92 sal_Int32 SlideShowRestarter::GetDisplayCount (void)
93 {
94 const Reference<XComponentContext> xContext (
95 ::comphelper::getProcessComponentContext() );
96 Reference<XMultiComponentFactory> xFactory (
97 xContext->getServiceManager(), UNO_QUERY);
98 if ( ! xFactory.is())
99 return 0;
100
101 Reference<com::sun::star::container::XIndexAccess> xIndexAccess (
102 xFactory->createInstanceWithContext(C2U("com.sun.star.awt.DisplayAccess"),xContext),
103 UNO_QUERY);
104 if ( ! xIndexAccess.is())
105 return 0;
106
107 return xIndexAccess->getCount();
108 }
109
110
111
112
IMPL_LINK(SlideShowRestarter,EndPresentation,void *,EMPTYARG)113 IMPL_LINK(SlideShowRestarter, EndPresentation, void*, EMPTYARG)
114 {
115 mnEventId = 0;
116 if (mpSlideShow.is())
117 {
118 if (mnDisplayCount!=GetDisplayCount())
119 {
120 mpSlideShow->end();
121
122 // The following piece of code should not be here because the
123 // slide show should be aware of the existence of the presenter
124 // console (which is displayed in the FullScreenPane). But the
125 // timing has to be right and I did not find a better place for
126 // it.
127
128 // Wait for the full screen pane, which displays the presenter
129 // console, to disappear. Only when it is gone, call
130 // InitiatePresenterStart(), in order to begin the asynchronous
131 // restart of the slide show.
132 if (mpViewShellBase != NULL)
133 {
134 ::boost::shared_ptr<FrameworkHelper> pHelper(
135 FrameworkHelper::Instance(*mpViewShellBase));
136 if (pHelper->GetConfigurationController()->getResource(
137 pHelper->CreateResourceId(FrameworkHelper::msFullScreenPaneURL)).is())
138 {
139 ::sd::framework::ConfigurationController::Lock aLock (
140 pHelper->GetConfigurationController());
141
142 pHelper->RunOnConfigurationEvent(
143 FrameworkHelper::msConfigurationUpdateEndEvent,
144 ::boost::bind(&SlideShowRestarter::StartPresentation, shared_from_this()));
145 pHelper->UpdateConfiguration();
146 }
147 else
148 {
149 StartPresentation();
150 }
151 }
152 }
153 }
154 return 0;
155 }
156
157
158
159
StartPresentation(void)160 void SlideShowRestarter::StartPresentation (void)
161 {
162 if (mpDispatcher == NULL && mpViewShellBase!=NULL)
163 mpDispatcher = mpViewShellBase->GetViewFrame()->GetDispatcher();
164
165 // Start the slide show on the saved current slide.
166 if (mpDispatcher != NULL)
167 {
168 mpDispatcher->Execute(SID_PRESENTATION, SFX_CALLMODE_ASYNCHRON);
169 if (mpSlideShow.is())
170 {
171 Sequence<css::beans::PropertyValue> aProperties (1);
172 aProperties[0].Name = C2U("FirstPage");
173 aProperties[0].Value <<= C2U("page") + OUString::valueOf(mnCurrentSlideNumber+1);
174 mpSlideShow->startWithArguments(aProperties);
175 }
176 mpSelf.reset();
177 }
178 }
179
180 } // end of namespace sd
181