Detect animated format using mimeType instead of file path

This allows to extend the functionality to non-local files and avoids a warning
on such files (`QFSFileEngine::open: No file name specified`)

3 files changed, 7 insertions, 6 deletions

diff --git a/src/panels/information/informationpanelcontent.cpp b/src/panels/information/informationpanelcontent.cpp
index a0c872560..9db7f8bb7 100644
--- a/src/panels/information/informationpanelcontent.cpp
+++ b/src/panels/information/informationpanelcontent.cpp
@@ -236,7 +236,7 @@ void InformationPanelContent::refreshPreview()
             refreshPixmapView();
 
             const QString mimeType = m_item.mimetype();
-            const bool isAnimatedImage = m_preview->isAnimatedImage(itemUrl.toLocalFile());
+            const bool isAnimatedImage = m_preview->isAnimatedMimeType(mimeType);
             m_isVideo = !isAnimatedImage && mimeType.startsWith(QLatin1String("video/"));
             bool usePhonon = m_isVideo || mimeType.startsWith(QLatin1String("audio/"));
 
diff --git a/src/panels/information/pixmapviewer.cpp b/src/panels/information/pixmapviewer.cpp
index 2601e82ae..39fedb1a1 100644
--- a/src/panels/information/pixmapviewer.cpp
+++ b/src/panels/information/pixmapviewer.cpp
@@ -186,8 +186,9 @@ void PixmapViewer::stopAnimatedImage()
     }
 }
 
-bool PixmapViewer::isAnimatedImage(const QString &fileName)
+bool PixmapViewer::isAnimatedMimeType(const QString &mimeType)
 {
-    const QByteArray imageFormat = QImageReader::imageFormat(fileName);
-    return !imageFormat.isEmpty() && QMovie::supportedFormats().contains(imageFormat);
+    const QList<QByteArray> imageFormats = QImageReader::imageFormatsForMimeType(mimeType.toUtf8());
+    return std::any_of(imageFormats.begin(), imageFormats.end(),
+                       [](const QByteArray &format){ return QMovie::supportedFormats().contains(format); });
 }
diff --git a/src/panels/information/pixmapviewer.h b/src/panels/information/pixmapviewer.h
index 37071045f..c231b590d 100644
--- a/src/panels/information/pixmapviewer.h
+++ b/src/panels/information/pixmapviewer.h
@@ -80,9 +80,9 @@ public:
     void stopAnimatedImage();
 
     /**
-     * Checks if \a fileName contains an animated image supported by QMovie.
+     * Checks if \a mimeType has a format supported by QMovie.
      */
-    static bool isAnimatedImage(const QString &fileName);
+    static bool isAnimatedMimeType(const QString &mimeType);
 
 protected:
     void paintEvent(QPaintEvent* event) override;