plugin that lets you grey out deleted songs on demand ("main menu / playlist") - available by default

also: this action will "ungrey" songs that were deleted but got restored

SIPs

scripts/CMakeLists.txt

@@ -8,3 +8,4 @@ endfunction(install_script_files)
 
 add_subdirectory(digitallyimported-radio)
 add_subdirectory(remove-duplicates)
+add_subdirectory(invalidate-deleted)

scripts/invalidate-deleted/CMakeLists.txt

@@ -0,0 +1,5 @@
+install_script_files(invalidate-deleted
+  icon.png
+  invalidate_deleted.py
+  script.ini
+)

scripts/invalidate-deleted/invalidate_deleted.py

@@ -0,0 +1,22 @@
+import clementine
+
+from PyQt4.QtCore import QObject
+from PyQt4.QtCore import SIGNAL
+from PyQt4.QtGui import QAction
+
+class InvalidateDeleted(QObject):
+
+  def __init__(self):
+    QObject.__init__(self)
+
+    self.action = QAction("invalidate_deleted", self)
+    self.action.setText("Grey out deleted songs")
+    self.connect(self.action, SIGNAL("activated()"), self.grey_out_activated)
+
+    clementine.ui.AddAction('playlist_menu', self.action)
+
+  def grey_out_activated(self):
+    clementine.playlists.InvalidateDeletedSongs()
+		
+
+script = InvalidateDeleted()

scripts/invalidate-deleted/script.ini

@@ -0,0 +1,9 @@
+[Script]
+name=Deleted songs invalidator
+description=This script will add a menu item for playlist's main menu which will grey out all non existent songs in all of your playlists.
+author=Pawel Bara <keirangtp ( at ) gmail.com>
+url=http://www.clementine-player.org
+icon=icon.png
+
+language=python
+script_file=invalidate_deleted.py

src/playlist/playlist.cpp

@@ -1580,10 +1580,17 @@ void Playlist::InvalidateDeletedSongs() {
     PlaylistItemPtr item = items_[row];
     Song song = item->Metadata();
 
-    if(song.filetype() != Song::Type_Stream && !QFile::exists(song.filename())) {
-      // gray out the song if it's not there
-      item->SetForegroundColor(kInvalidSongPriority, kInvalidSongColor);
-      invalidated_rows.append(row);
+    if(song.filetype() != Song::Type_Stream) {
+      bool exists = QFile::exists(song.filename());
+
+      if(!exists && !item->HasForegroundColor(kInvalidSongPriority)) {
+        // gray out the song if it's not there
+        item->SetForegroundColor(kInvalidSongPriority, kInvalidSongColor);
+        invalidated_rows.append(row);
+      } else if(exists && item->HasForegroundColor(kInvalidSongPriority)) {
+        item->RemoveForegroundColor(kInvalidSongPriority);
+        invalidated_rows.append(row);
+      }
     }
   }
 

src/playlist/playlistitem.cpp

@@ -95,6 +95,9 @@ QFuture<void> PlaylistItem::BackgroundReload() {
 void PlaylistItem::SetBackgroundColor(short priority, const QColor& color) {
   background_colors_[priority] = color;
 }
+bool PlaylistItem::HasBackgroundColor(short priority) const {
+  return background_colors_.contains(priority);
+}
 void PlaylistItem::RemoveBackgroundColor(short priority) {
   background_colors_.remove(priority);
 }
@@ -110,6 +113,9 @@ bool PlaylistItem::HasCurrentBackgroundColor() const {
 void PlaylistItem::SetForegroundColor(short priority, const QColor& color) {
   foreground_colors_[priority] = color;
 }
+bool PlaylistItem::HasForegroundColor(short priority) const {
+  return foreground_colors_.contains(priority);
+}
 void PlaylistItem::RemoveForegroundColor(short priority) {
   foreground_colors_.remove(priority);
 }

src/playlist/playlistitem.h

@@ -116,12 +116,14 @@ class PlaylistItem : public boost::enable_shared_from_this<PlaylistItem> {
 
   // Background colors.
   void SetBackgroundColor(short priority, const QColor& color);
+  bool HasBackgroundColor(short priority) const;
   void RemoveBackgroundColor(short priority);
   QColor GetCurrentBackgroundColor() const;
   bool HasCurrentBackgroundColor() const;
 
   // Foreground colors.
   void SetForegroundColor(short priority, const QColor& color);
+  bool HasForegroundColor(short priority) const;
   void RemoveForegroundColor(short priority);
   QColor GetCurrentForegroundColor() const;
   bool HasCurrentForegroundColor() const;

src/scripting/python/playlist.sip

@@ -111,6 +111,9 @@ public:
   void InsertUrls               (const QList<QUrl>& urls,           int pos = -1, bool play_now = false, bool enqueue = false);
   void RemoveItemsWithoutUndo   (const QList<int>& indicesIn);
 
+  // Grays out and reloads all deleted songs in this playlist.
+  void InvalidateDeletedSongs();
+
   void StopAfter(int row);
   void ReloadItems(const QList<int>& rows);
 

src/scripting/python/playlistitem.sip

@@ -199,6 +199,14 @@ Below we list all the currently taken background priorities:
 
 If it makes sense, one functionality (one plugin) can use many background
 priorities at the same time.
+%End
+
+  bool HasBackgroundColor(short priority) const;
+%Docstring
+HasBackgroundColor(priority) -> bool
+Checks if this PlaylistItem has a background color with this priority set.
+It doesn't need to be the current color, it just needs to exist in the colors
+list.
 %End
 
   void RemoveBackgroundColor(short priority);
@@ -231,14 +239,22 @@ If it makes sense, one functionality (one plugin) can use many foreground
 priorities at the same time.
   %End
 
+  bool HasForegroundColor(short priority) const;
+%Docstring
+HasForegroundColor(priority) -> bool
+Checks if this PlaylistItem has a foreground color with this priority set.
+It doesn't need to be the current color, it just needs to exist in the colors
+list.
+%End
+
   void RemoveForegroundColor(short priority);
-  %Docstring
+%Docstring
 RemoveForegroundColor(priority)
 Removes a foreground color with the given priority from this PlaylistItem's
 foreground. If there's no such color, this call will be ignored.
 
 @see: L{SetForegroundColor()}
-  %End
+%End
 
   ~PlaylistItem();
 %MethodCode

src/scripting/python/playlistmanager.sip

@@ -85,6 +85,13 @@ Equivalent to C{playlist(active_id())}.
 %Docstring
 GetAllPlaylists() -> list of L{Playlist}s
 Returns a list containing all the playlists.
+%End
+
+  void InvalidateDeletedSongs();
+%Docstring
+InvalidateDeletedSongs()
+Grays out and reloads all deleted songs in all playlists. Also, "ungreys"
+those songs which were once deleted but now got restored somehow.
 %End
 
   const QItemSelection& selection(int id) const;

src/ui/mainwindow.ui

@@ -390,7 +390,7 @@
      <x>0</x>
      <y>0</y>
      <width>1131</width>
-     <height>23</height>
+     <height>25</height>
     </rect>
    </property>
    <widget class="QMenu" name="menu_music">
@@ -429,6 +429,7 @@
     <addaction name="action_jump"/>
     <addaction name="action_clear_playlist"/>
     <addaction name="action_shuffle"/>
+    <addaction name="separator"/>
    </widget>
    <widget class="QMenu" name="menu_help">
     <property name="title">