move a few small functions to actions

src/actions.cpp

@@ -980,7 +980,7 @@ bool MoveSortOrderUp::canBeRun() const
 
 void MoveSortOrderUp::Run()
 {
-	myPlaylist->AdjustSortOrder(Playlist::mUp);
+	myPlaylist->moveSortOrderUp();
 }
 
 bool MoveSortOrderDown::canBeRun() const
@@ -991,35 +991,55 @@ bool MoveSortOrderDown::canBeRun() const
 
 void MoveSortOrderDown::Run()
 {
-	myPlaylist->AdjustSortOrder(Playlist::mDown);
+	myPlaylist->moveSortOrderDown();
 }
 
 bool MoveSelectedItemsUp::canBeRun() const
 {
-	return myScreen->ActiveWindow() == myPlaylist->Items
-	    || myScreen->ActiveWindow() == myPlaylistEditor->Content;
+	return ((myScreen->ActiveWindow() == myPlaylist->Items
+	    &&  !myPlaylist->Items->empty()
+	    &&  !myPlaylist->Items->isFiltered())
+	 ||    (myScreen->ActiveWindow() == myPlaylistEditor->Content
+	    &&  !myPlaylistEditor->Content->empty()
+	    &&  !myPlaylistEditor->Content->isFiltered()));
 }
 
 void MoveSelectedItemsUp::Run()
 {
 	if (myScreen == myPlaylist)
-		myPlaylist->MoveSelectedItems(Playlist::mUp);
+	{
+		moveSelectedItemsUp(*myPlaylist->Items, std::bind(&MPD::Connection::Move, _1, _2, _3));
+	}
 	else if (myScreen == myPlaylistEditor)
-		myPlaylistEditor->MoveSelectedItems(Playlist::mUp);
+	{
+		assert(!myPlaylistEditor->Playlists->empty());
+		std::string playlist = myPlaylistEditor->Playlists->current().value();
+		moveSelectedItemsUp(*myPlaylistEditor->Content, std::bind(&MPD::Connection::PlaylistMove, _1, playlist, _2, _3));
+	}
 }
 
 bool MoveSelectedItemsDown::canBeRun() const
 {
-	return myScreen->ActiveWindow() == myPlaylist->Items
-	    || myScreen->ActiveWindow() == myPlaylistEditor->Content;
+	return ((myScreen->ActiveWindow() == myPlaylist->Items
+	    &&  !myPlaylist->Items->empty()
+	    &&  !myPlaylist->Items->isFiltered())
+	 ||    (myScreen->ActiveWindow() == myPlaylistEditor->Content
+	    &&  !myPlaylistEditor->Content->empty()
+	    &&  !myPlaylistEditor->Content->isFiltered()));
 }
 
 void MoveSelectedItemsDown::Run()
 {
 	if (myScreen == myPlaylist)
-		myPlaylist->MoveSelectedItems(Playlist::mDown);
+	{
+		moveSelectedItemsDown(*myPlaylist->Items, std::bind(&MPD::Connection::Move, _1, _2, _3));
+	}
 	else if (myScreen == myPlaylistEditor)
-		myPlaylistEditor->MoveSelectedItems(Playlist::mDown);
+	{
+		assert(!myPlaylistEditor->Playlists->empty());
+		std::string playlist = myPlaylistEditor->Playlists->current().value();
+		moveSelectedItemsDown(*myPlaylistEditor->Content, std::bind(&MPD::Connection::PlaylistMove, _1, playlist, _2, _3));
+	}
 }
 
 bool MoveSelectedItemsTo::canBeRun() const

src/playlist.cpp

@@ -374,26 +374,6 @@ bool Playlist::isFiltered()
 	return false;
 }
 
-void Playlist::MoveSelectedItems(Movement where)
-{
-	if (Items->empty() || isFiltered())
-		return;
-	
-	switch (where)
-	{
-		case mUp:
-		{
-			moveSelectedItemsUp(*Items, std::bind(&MPD::Connection::Move, _1, _2, _3));
-			break;
-		}
-		case mDown:
-		{
-			moveSelectedItemsDown(*Items, std::bind(&MPD::Connection::Move, _1, _2, _3));
-			break;
-		}
-	}
-}
-
 void Playlist::Sort()
 {
 	if (isFiltered())
@@ -434,33 +414,6 @@ void Playlist::Reverse()
 		 ShowMessage("Playlist reversed");
 }
 
-void Playlist::AdjustSortOrder(Movement where)
-{
-	switch (where)
-	{
-		case mUp:
-		{
-			size_t pos = SortDialog->choice();
-			if (pos > 0 && pos < SortOptions)
-			{
-				SortDialog->Swap(pos, pos-1);
-				SortDialog->scroll(NC::wUp);
-			}
-			break;
-		}
-		case mDown:
-		{
-			size_t pos = SortDialog->choice();
-			if (pos < SortOptions-1)
-			{
-				SortDialog->Swap(pos, pos+1);
-				SortDialog->scroll(NC::wDown);
-			}
-			break;
-		}
-	}
-}
-
 void Playlist::EnableHighlighting()
 {
 	Items->setHighlighting(1);
@@ -620,6 +573,26 @@ bool Playlist::checkForSong(const MPD::Song &s)
 	return itsSongHashes.find(s.getHash()) != itsSongHashes.end();
 }
 
+void Playlist::moveSortOrderDown()
+{
+	size_t pos = SortDialog->choice();
+	if (pos < SortOptions-1)
+	{
+		SortDialog->Swap(pos, pos+1);
+		SortDialog->scroll(NC::wDown);
+	}
+}
+
+void Playlist::moveSortOrderUp()
+{
+	size_t pos = SortDialog->choice();
+	if (pos > 0 && pos < SortOptions)
+	{
+		SortDialog->Swap(pos, pos-1);
+		SortDialog->scroll(NC::wUp);
+	}
+}
+
 void Playlist::registerHash(size_t hash)
 {
 	itsSongHashes[hash] += 1;

src/playlist.h

@@ -30,8 +30,6 @@
 class Playlist : public Screen<NC::Window>, public Filterable, public HasSongs, public Searchable
 {
 	public:
-		enum Movement { mUp, mDown };
-		
 		Playlist() : NowPlaying(-1), itsTotalLength(0), itsRemainingTime(0), itsScrollBegin(0) { }
 		~Playlist() { }
 		
@@ -73,11 +71,8 @@ class Playlist : public Screen<NC::Window>, public Filterable, public HasSongs,
 		bool isPlaying() { return NowPlaying >= 0 && !Items->empty(); }
 		const MPD::Song *NowPlayingSong();
 		
-		void MoveSelectedItems(Movement where);
-		
 		void Sort();
 		void Reverse();
-		void AdjustSortOrder(Movement where);
 		bool SortingInProgress();
 		
 		void EnableHighlighting();
@@ -92,6 +87,9 @@ class Playlist : public Screen<NC::Window>, public Filterable, public HasSongs,
 		
 		bool checkForSong(const MPD::Song &s);
 		
+		void moveSortOrderUp();
+		void moveSortOrderDown();
+		
 		void registerHash(size_t hash);
 		void unregisterHash(size_t hash);
 		

src/playlist_editor.cpp

@@ -208,26 +208,6 @@ void PlaylistEditor::Update()
 	}
 }
 
-void PlaylistEditor::MoveSelectedItems(Playlist::Movement where)
-{
-	if (Content->empty() || isContentFiltered())
-		return;
-	
-	switch (where)
-	{
-		case Playlist::mUp:
-		{
-			moveSelectedItemsUp(*Content, std::bind(&MPD::Connection::PlaylistMove, _1, Playlists->current().value(), _2, _3));
-			break;
-		}
-		case Playlist::mDown:
-		{
-			moveSelectedItemsDown(*Content, std::bind(&MPD::Connection::PlaylistMove, _1, Playlists->current().value(), _2, _3));
-			break;
-		}
-	}
-}
-
 bool PlaylistEditor::isContentFiltered()
 {
 	if (Content->isFiltered())
@@ -238,7 +218,6 @@ bool PlaylistEditor::isContentFiltered()
 	return false;
 }
 
-
 bool PlaylistEditor::isNextColumnAvailable()
 {
 	if (w == Playlists)

src/playlist_editor.h

@@ -21,7 +21,8 @@
 #ifndef _PLAYLIST_EDITOR_H
 #define _PLAYLIST_EDITOR_H
 
-#include "playlist.h"
+#include "interfaces.h"
+#include "screen.h"
 
 class PlaylistEditor : public Screen<NC::Window>, public Filterable, public HasSongs, public Searchable
 {
@@ -62,8 +63,6 @@ class PlaylistEditor : public Screen<NC::Window>, public Filterable, public HasS
 		// private members
 		virtual void Locate(const std::string &);
 		
-		void MoveSelectedItems(Playlist::Movement where);
-		
 		void requestPlaylistsUpdate() { playlistsUpdateRequested = true; }
 		void requestContentsUpdate() { contentUpdateRequested = true; }