tdf#44223 allow slideshow to play embedded media.

Implement MediaFileManager that create the temp media
file for package urls when making slideshow.

Change-Id: I10a5ddc405928b4322ad72eb603508faf25bf0db
Reviewed-on: https://gerrit.libreoffice.org/67209
Tested-by: Jenkins
Reviewed-by: Mark Hung <marklh9@gmail.com>

1 files changed, 45 insertions, 1 deletions

diff --git a/slideshow/source/engine/slideshowimpl.cxx b/slideshow/source/engine/slideshowimpl.cxx
index b2437e4b147d..177ff07dfb1b 100644
--- a/slideshow/source/engine/slideshowimpl.cxx
+++ b/slideshow/source/engine/slideshowimpl.cxx
@@ -30,6 +30,7 @@
 #include <comphelper/anytostring.hxx>
 #include <comphelper/scopeguard.hxx>
 #include <comphelper/servicedecl.hxx>
+#include <comphelper/storagehelper.hxx>
 
 #include <cppcanvas/spritecanvas.hxx>
 #include <cppcanvas/vclfactory.hxx>
@@ -68,6 +69,7 @@
 #include <com/sun/star/drawing/XLayerSupplier.hpp>
 #include <com/sun/star/drawing/XLayerManager.hpp>
 #include <com/sun/star/container/XNameAccess.hpp>
+#include <com/sun/star/document/XStorageBasedDocument.hpp>
 
 #include <com/sun/star/uno/Reference.hxx>
 #include <com/sun/star/loader/CannotActivateFactoryException.hpp>
@@ -78,6 +80,7 @@
 #include <usereventqueue.hxx>
 #include <eventqueue.hxx>
 #include <cursormanager.hxx>
+#include <mediafilemanager.hxx>
 #include <slideshowcontext.hxx>
 #include <activitiesqueue.hxx>
 #include <activitiesfactory.hxx>
@@ -209,6 +212,7 @@ typedef ::std::map< css::uno::Reference<
 
 class SlideShowImpl : private cppu::BaseMutex,
                       public CursorManager,
+                      public MediaFileManager,
                       public SlideShowImplBase
 {
 public:
@@ -271,6 +275,9 @@ public:
      */
     bool handleAnimationEvent( const AnimationNodeSharedPtr& rNode );
 
+    /** Obtain a MediaTempFile for the specified url. */
+    virtual std::shared_ptr<avmedia::MediaTempFile> getMediaTempFile(const OUString& aUrl) override;
+
 private:
     // XSlideShow:
     virtual sal_Bool SAL_CALL nextEffect() override;
@@ -460,6 +467,8 @@ private:
     uno::Reference<drawing::XDrawPage>      mxPrefetchSlide;
     ///  save the XDrawPagesSupplier to retrieve polygons
     uno::Reference<drawing::XDrawPagesSupplier>  mxDrawPagesSupplier;
+    ///  Used by MediaFileManager, for media files with package url.
+    uno::Reference<document::XStorageBasedDocument> mxSBD;
     /// slide animation to be prefetched:
     uno::Reference<animations::XAnimationNode> mxPrefetchAnimationNode;
 
@@ -572,6 +581,7 @@ SlideShowImpl::SlideShowImpl(
       mpPrefetchSlide(),
       mxPrefetchSlide(),
       mxDrawPagesSupplier(),
+      mxSBD(),
       mxPrefetchAnimationNode(),
       mnCurrentCursor(awt::SystemPointer::ARROW),
       mnWaitSymbolRequestCount(0),
@@ -710,7 +720,7 @@ SoundPlayerSharedPtr SlideShowImpl::resetSlideTransitionSound( const uno::Any& r
         try
         {
             mpCurrentSlideTransitionSound = SoundPlayer::create(
-                maEventMultiplexer, url, mxComponentContext );
+                maEventMultiplexer, url, mxComponentContext, *this);
             mpCurrentSlideTransitionSound->setPlaybackLoop( bLoopSound );
         }
         catch (lang::NoSupportException const&)
@@ -894,6 +904,7 @@ SlideSharedPtr SlideShowImpl::makeSlide(
                                              maActivitiesQueue,
                                              maUserEventQueue,
                                              *this,
+                                             *this,
                                              maViewContainer,
                                              mxComponentContext,
                                              maShapeEventListeners,
@@ -1055,6 +1066,7 @@ void SlideShowImpl::displaySlide(
     DBG_TESTSOLARMUTEX();
 
     mxDrawPagesSupplier = xDrawPages;
+    mxSBD = uno::Reference<document::XStorageBasedDocument>(mxDrawPagesSupplier, uno::UNO_QUERY);
 
     stopShow();  // MUST call that: results in
     // maUserEventQueue.clear(). What's more,
@@ -1686,6 +1698,7 @@ sal_Bool SlideShowImpl::setProperty( beans::PropertyValue const& rProperty )
                     maActivitiesQueue,
                     maUserEventQueue,
                     *this,
+                    *this,
                     maViewContainer,
                     mxComponentContext) );
         }
@@ -2332,6 +2345,37 @@ bool SlideShowImpl::handleAnimationEvent( const AnimationNodeSharedPtr& rNode )
     return true;
 }
 
+std::shared_ptr<avmedia::MediaTempFile> SlideShowImpl::getMediaTempFile(const OUString& aUrl)
+{
+    std::shared_ptr<avmedia::MediaTempFile> aRet;
+
+    if (!mxSBD.is())
+        return aRet;
+
+    comphelper::LifecycleProxy aProxy;
+    uno::Reference<io::XStream> xStream =
+        comphelper::OStorageHelper::GetStreamAtPackageURL(mxSBD->getDocumentStorage(), aUrl,
+                css::embed::ElementModes::READ, aProxy);
+
+    uno::Reference<io::XInputStream> xInStream = xStream->getInputStream();
+    if (xInStream.is())
+    {
+        sal_Int32 nLastDot = aUrl.lastIndexOf('.');
+        sal_Int32 nLastSlash = aUrl.lastIndexOf('/');
+        OUString sDesiredExtension;
+        if (nLastDot > nLastSlash && nLastDot+1 < aUrl.getLength())
+            sDesiredExtension = aUrl.copy(nLastDot);
+
+        OUString sTempUrl;
+        if (::avmedia::CreateMediaTempFile(xInStream, sTempUrl, sDesiredExtension))
+            aRet.reset(new avmedia::MediaTempFile(sTempUrl));
+
+        xInStream->closeInput();
+    }
+
+    return aRet;
+}
+
 //===== FrameSynchronization ==================================================
 
 FrameSynchronization::FrameSynchronization (const double nFrameDuration)