Support multiple-selection for cover art menu in WTrackTableView.

* Adds CoverArtCache::guessCover(s) methods for calling
  CoverArtUtils::guessCoverArt in a background thread.
* Removes processing of reset menu option from WCoverArtMenu and instead
  sends a signal that the owner of the menu should handle.

1 files changed, 1 insertions, 7 deletions

diff --git a/src/widget/wcoverartmenu.cpp b/src/widget/wcoverartmenu.cpp
index 4be49bf464..ca5f790e4c 100644
--- a/src/widget/wcoverartmenu.cpp
+++ b/src/widget/wcoverartmenu.cpp
@@ -28,7 +28,7 @@ void WCoverArtMenu::createActions() {
 
     m_pReload = new QAction(tr("Reload from track/folder",
             "reload cover art from track metadata or folder"), this);
-    connect(m_pReload, SIGNAL(triggered()), this, SLOT(slotReload()));
+    connect(m_pReload, SIGNAL(triggered()), this, SIGNAL(reloadCoverArt()));
     addAction(m_pReload);
 }
 
@@ -90,12 +90,6 @@ void WCoverArtMenu::slotChange() {
     emit(coverArtSelected(art));
 }
 
-void WCoverArtMenu::slotReload() {
-    CoverArt art = CoverArtUtils::guessCoverArt(m_pTrack);
-    qDebug() << "WCoverArtMenu::slotReload emit" << art;
-    emit(coverArtSelected(art));
-}
-
 void WCoverArtMenu::slotUnset() {
     CoverArt art;
     art.info.type = CoverInfo::NONE;