initial support for binding keys to action chains

configure.in

@@ -35,12 +35,25 @@ old_CXXFLAGS="$CXXFLAGS"
 CXXFLAGS="-fno-exceptions"
 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ ]])],
 	AC_MSG_RESULT([yes])
-	no_exceptions="-fno-exceptions"
-	,
+		no_exceptions="-fno-exceptions",
 	AC_MSG_RESULT([no])
 )
 CXXFLAGS="$old_CXXFLAGS $no_exceptions"
 
+dnl ================================
+dnl = checking for -std=c++0x flag =
+dnl ================================
+AC_MSG_CHECKING([whether compiler supports -std=c++0x])
+old_CXXFLAGS="$CXXFLAGS"
+CXXFLAGS="-std=c++0x"
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ ]])],
+	AC_MSG_RESULT([yes])
+		std_cpp0x="-std=c++0x",
+	AC_MSG_RESULT([no])
+		AC_MSG_ERROR([[Your compiler doesn't seem to support C++0x, please upgrade (GCC >= 4.4)]])
+)
+CXXFLAGS="$old_CXXFLAGS $std_cpp0x"
+
 dnl ==============================
 dnl = checking for regex (win32) =
 dnl ==============================

src/actions.cpp

@@ -261,9 +261,9 @@ void Action::Seek()
 		Key input = ReadKey(*wFooter);
 		KeyConfiguration::Binding k = Keys.Bindings.equal_range(input);
 		// no action?
-		if (k.first == k.second)
+		if (k.first == k.second || !k.first->second.isSingle())
 			break;
-		Action *a = k.first->second;
+		Action *a = k.first->second.getAction();
 		if (dynamic_cast<SeekForward *>(a))
 		{
 			if (songpos < Mpd.GetTotalTime())

src/help.cpp

@@ -80,9 +80,9 @@ std::string Help::DisplayKeys(const ActionType at)
 {
 	bool print_backspace = true;
 	std::string result;
-	for (std::multimap<Action::Key, Action *>::const_iterator it = Keys.Bindings.begin(); it != Keys.Bindings.end(); ++it)
+	for (std::multimap<Action::Key, Bind>::const_iterator it = Keys.Bindings.begin(); it != Keys.Bindings.end(); ++it)
 	{
-		if (it->second->Type() == at)
+		if (it->second.isSingle() && it->second.getAction()->Type() == at)
 		{
 			result += IntoStr(it->first, &print_backspace);
 			result += " ";

src/ncmpcpp.cpp

@@ -271,8 +271,22 @@ int main(int argc, char **argv)
 		
 		KeyConfiguration::Binding k = Keys.Bindings.equal_range(input);
 		for (; k.first != k.second; ++k.first)
-			if (k.first->second->Execute())
+		{
+			Bind &b = k.first->second;
+			if (b.isSingle())
+			{
+				if (b.getAction()->Execute())
 					break;
+			}
+			else
+			{
+				Bind::ActionChain *chain = b.getChain();
+				for (Bind::ActionChain::iterator it = chain->begin(); it != chain->end(); ++it)
+					if (!(*it)->Execute())
+						break;
+				break;
+			}
+		}
 		
 		if (myScreen == myPlaylist)
 			myPlaylist->EnableHighlighting();

src/settings.cpp

@@ -133,142 +133,138 @@ void CreateDir(const std::string &dir)
 
 void KeyConfiguration::GenerateBindings()
 {
-#	define BIND(key, type, action) Bindings.insert(std::make_pair(Action::Key(key, type), Action::Get(action)))
+	Bind_(KEY_MOUSE,	ctNCurses,	aMouseEvent);
+	Bind_(KEY_UP,		ctNCurses,	aScrollUp);
+	Bind_(KEY_DOWN,		ctNCurses,	aScrollDown);
+	Bind_('[',		ctStandard,	aScrollUpAlbum);
+	Bind_(']',		ctStandard,	aScrollDownAlbum);
+	Bind_('{',		ctStandard,	aScrollUpArtist);
+	Bind_('}',		ctStandard,	aScrollDownArtist);
+	Bind_(KEY_PPAGE,	ctNCurses,	aPageUp);
+	Bind_(KEY_NPAGE,	ctNCurses,	aPageDown);
+	Bind_(KEY_HOME,		ctNCurses,	aMoveHome);
+	Bind_(KEY_END,		ctNCurses,	aMoveEnd);
+	Bind_(KEY_SPACE,	ctStandard,	aPressSpace);
+	Bind_(KEY_ENTER,	ctStandard,	aPressEnter);
+	Bind_(KEY_DC,		ctNCurses,	aDelete);
+	Bind_(KEY_RIGHT,	ctNCurses,	aNextColumn);
+	Bind_(KEY_RIGHT,	ctNCurses,	aSlaveScreen);
+	Bind_(KEY_RIGHT,	ctNCurses,	aVolumeUp);
+	Bind_(KEY_LEFT,		ctNCurses,	aPreviousColumn);
+	Bind_(KEY_LEFT,		ctNCurses,	aMasterScreen);
+	Bind_(KEY_LEFT,		ctNCurses,	aVolumeDown);
+	Bind_(KEY_TAB,		ctStandard,	aNextScreen);
+	Bind_(KEY_SHIFT_TAB,	ctNCurses,	aPreviousScreen);
+	Bind_('1',		ctStandard,	aShowHelp);
+	Bind_('2',		ctStandard,	aShowPlaylist);
+	Bind_('3',		ctStandard,	aShowBrowser);
+	Bind_('4',		ctStandard,	aShowSearchEngine);
+	Bind_('5',		ctStandard,	aShowMediaLibrary);
+	Bind_('6',		ctStandard,	aShowPlaylistEditor);
+	Bind_('7',		ctStandard,	aShowTagEditor);
+	Bind_('8',		ctStandard,	aShowOutputs);
+	Bind_('9',		ctStandard,	aShowVisualizer);
+	Bind_('0',		ctStandard,	aShowClock);
+	Bind_('@',		ctStandard,	aShowServerInfo);
+	Bind_('s',		ctStandard,	aStop);
+	Bind_('P',		ctStandard,	aPause);
+	Bind_('>',		ctStandard,	aNextSong);
+	Bind_('<',		ctStandard,	aPreviousSong);
+	Bind_(KEY_CTRL_H,	ctStandard,	aJumpToParentDir);
+	Bind_(KEY_CTRL_H,	ctStandard,	aReplaySong);
+	Bind_(KEY_BACKSPACE,	ctNCurses,	aJumpToParentDir);
+	Bind_(KEY_BACKSPACE,	ctNCurses,	aReplaySong);
+	Bind_(KEY_BACKSPACE_2,	ctStandard,	aJumpToParentDir);
+	Bind_(KEY_BACKSPACE_2,	ctStandard,	aReplaySong);
+	Bind_('f',		ctStandard,	aSeekForward);
+	Bind_('b',		ctStandard,	aSeekBackward);
+	Bind_('r',		ctStandard,	aToggleRepeat);
+	Bind_('z',		ctStandard,	aToggleRandom);
+	Bind_('y',		ctStandard,	aSaveTagChanges);
+	Bind_('y',		ctStandard,	aStartSearching);
+	Bind_('y',		ctStandard,	aToggleSingle);
+	Bind_('R',		ctStandard,	aToggleConsume);
+	Bind_('Y',		ctStandard,	aToggleReplayGainMode);
+	Bind_('t',		ctStandard,	aToggleSpaceMode);
+	Bind_('T',		ctStandard,	aToggleAddMode);
+	Bind_('|',		ctStandard,	aToggleMouse);
+	Bind_('#',		ctStandard,	aToggleBitrateVisibility);
+	Bind_('Z',		ctStandard,	aShuffle);
+	Bind_('x',		ctStandard,	aToggleCrossfade);
+	Bind_('X',		ctStandard,	aSetCrossfade);
+	Bind_('u',		ctStandard,	aUpdateDatabase);
+	Bind_(KEY_CTRL_V,	ctStandard,	aSortPlaylist);
+	Bind_(KEY_CTRL_R,	ctStandard,	aReversePlaylist);
+	Bind_(KEY_CTRL_F,	ctStandard,	aApplyFilter);
+	Bind_(KEY_CTRL_G,	ctStandard,	aDisableFilter);
+	Bind_('/',		ctStandard,	aFind);
+	Bind_('/',		ctStandard,	aFindItemForward);
+	Bind_('?',		ctStandard,	aFind);
+	Bind_('?',		ctStandard,	aFindItemBackward);
+	Bind_('.',		ctStandard,	aNextFoundItem);
+	Bind_(',',		ctStandard,	aPreviousFoundItem);
+	Bind_('w',		ctStandard,	aToggleFindMode);
+	Bind_('e',		ctStandard,	aEditSong);
+	Bind_('e',		ctStandard,	aEditLibraryTag);
+	Bind_('e',		ctStandard,	aEditLibraryAlbum);
+	Bind_('e',		ctStandard,	aEditDirectoryName);
+	Bind_('e',		ctStandard,	aEditPlaylistName);
+	Bind_('e',		ctStandard,	aEditLyrics);
+	Bind_('i',		ctStandard,	aShowSongInfo);
+	Bind_('I',		ctStandard,	aShowArtistInfo);
+	Bind_('g',		ctStandard,	aJumpToPositionInSong);
+	Bind_('l',		ctStandard,	aShowLyrics);
+	Bind_('v',		ctStandard,	aReverseSelection);
+	Bind_('V',		ctStandard,	aDeselectItems);
+	Bind_('B',		ctStandard,	aSelectAlbum);
+	Bind_('a',		ctStandard,	aAddSelectedItems);
+	Bind_('c',		ctStandard,	aClearPlaylist);
+	Bind_('c',		ctStandard,	aClearMainPlaylist);
+	Bind_('C',		ctStandard,	aCropPlaylist);
+	Bind_('C',		ctStandard,	aCropMainPlaylist);
+	Bind_('m',		ctStandard,	aMoveSortOrderUp);
+	Bind_('m',		ctStandard,	aMoveSelectedItemsUp);
+	Bind_('n',		ctStandard,	aMoveSortOrderDown);
+	Bind_('n',		ctStandard,	aMoveSelectedItemsDown);
+	Bind_('M',		ctStandard,	aMoveSelectedItemsTo);
+	Bind_('A',		ctStandard,	aAdd);
+	Bind_('S',		ctStandard,	aSavePlaylist);
+	Bind_('o',		ctStandard,	aJumpToPlayingSong);
+	Bind_('G',		ctStandard,	aJumpToBrowser);
+	Bind_('G',		ctStandard,	aJumpToPlaylistEditor);
+	Bind_('~',		ctStandard,	aJumpToMediaLibrary);
+	Bind_('E',		ctStandard,	aJumpToTagEditor);
+	Bind_('U',		ctStandard,	aToggleAutoCenter);
+	Bind_('p',		ctStandard,	aToggleDisplayMode);
+	Bind_('\\',		ctStandard,	aToggleInterface);
+	Bind_('!',		ctStandard,	aToggleSeparatorsInPlaylist);
+	Bind_('L',		ctStandard,	aToggleLyricsFetcher);
+	Bind_('F',		ctStandard,	aToggleFetchingLyricsInBackground);
+	Bind_(KEY_CTRL_L,	ctStandard,	aToggleScreenLock);
+	Bind_('`',		ctStandard,	aToggleBrowserSortMode);
+	Bind_('`',		ctStandard,	aToggleLibraryTagType);
+	Bind_('`',		ctStandard,	aRefetchLyrics);
+	Bind_('`',		ctStandard,	aRefetchArtistInfo);
+	Bind_('`',		ctStandard,	aAddRandomItems);
+	Bind_(KEY_CTRL_P,	ctStandard,	aSetSelectedItemsPriority);
+	Bind_('q',		ctStandard,	aQuit);
 	
-	BIND(KEY_MOUSE,		ctNCurses,	aMouseEvent);
-	BIND(KEY_UP,		ctNCurses,	aScrollUp);
-	BIND(KEY_DOWN,		ctNCurses,	aScrollDown);
-	BIND('[',		ctStandard,	aScrollUpAlbum);
-	BIND(']',		ctStandard,	aScrollDownAlbum);
-	BIND('{',		ctStandard,	aScrollUpArtist);
-	BIND('}',		ctStandard,	aScrollDownArtist);
-	BIND(KEY_PPAGE,		ctNCurses,	aPageUp);
-	BIND(KEY_NPAGE,		ctNCurses,	aPageDown);
-	BIND(KEY_HOME,		ctNCurses,	aMoveHome);
-	BIND(KEY_END,		ctNCurses,	aMoveEnd);
-	BIND(KEY_SPACE,		ctStandard,	aPressSpace);
-	BIND(KEY_ENTER,		ctStandard,	aPressEnter);
-	BIND(KEY_DC,		ctNCurses,	aDelete);
-	BIND(KEY_RIGHT,		ctNCurses,	aNextColumn);
-	BIND(KEY_RIGHT,		ctNCurses,	aSlaveScreen);
-	BIND(KEY_RIGHT,		ctNCurses,	aVolumeUp);
-	BIND(KEY_LEFT,		ctNCurses,	aPreviousColumn);
-	BIND(KEY_LEFT,		ctNCurses,	aMasterScreen);
-	BIND(KEY_LEFT,		ctNCurses,	aVolumeDown);
-	BIND(KEY_TAB,		ctStandard,	aNextScreen);
-	BIND(KEY_SHIFT_TAB,	ctNCurses,	aPreviousScreen);
-	BIND('1',		ctStandard,	aShowHelp);
-	BIND('2',		ctStandard,	aShowPlaylist);
-	BIND('3',		ctStandard,	aShowBrowser);
-	BIND('4',		ctStandard,	aShowSearchEngine);
-	BIND('5',		ctStandard,	aShowMediaLibrary);
-	BIND('6',		ctStandard,	aShowPlaylistEditor);
-	BIND('7',		ctStandard,	aShowTagEditor);
-	BIND('8',		ctStandard,	aShowOutputs);
-	BIND('9',		ctStandard,	aShowVisualizer);
-	BIND('0',		ctStandard,	aShowClock);
-	BIND('@',		ctStandard,	aShowServerInfo);
-	BIND('s',		ctStandard,	aStop);
-	BIND('P',		ctStandard,	aPause);
-	BIND('>',		ctStandard,	aNextSong);
-	BIND('<',		ctStandard,	aPreviousSong);
-	BIND(KEY_CTRL_H,	ctStandard,	aJumpToParentDir);
-	BIND(KEY_CTRL_H,	ctStandard,	aReplaySong);
-	BIND(KEY_BACKSPACE,	ctNCurses,	aJumpToParentDir);
-	BIND(KEY_BACKSPACE,	ctNCurses,	aReplaySong);
-	BIND(KEY_BACKSPACE_2,	ctStandard,	aJumpToParentDir);
-	BIND(KEY_BACKSPACE_2,	ctStandard,	aReplaySong);
-	BIND('f',		ctStandard,	aSeekForward);
-	BIND('b',		ctStandard,	aSeekBackward);
-	BIND('r',		ctStandard,	aToggleRepeat);
-	BIND('z',		ctStandard,	aToggleRandom);
-	BIND('y',		ctStandard,	aSaveTagChanges);
-	BIND('y',		ctStandard,	aStartSearching);
-	BIND('y',		ctStandard,	aToggleSingle);
-	BIND('R',		ctStandard,	aToggleConsume);
-	BIND('Y',		ctStandard,	aToggleReplayGainMode);
-	BIND('t',		ctStandard,	aToggleSpaceMode);
-	BIND('T',		ctStandard,	aToggleAddMode);
-	BIND('|',		ctStandard,	aToggleMouse);
-	BIND('#',		ctStandard,	aToggleBitrateVisibility);
-	BIND('Z',		ctStandard,	aShuffle);
-	BIND('x',		ctStandard,	aToggleCrossfade);
-	BIND('X',		ctStandard,	aSetCrossfade);
-	BIND('u',		ctStandard,	aUpdateDatabase);
-	BIND(KEY_CTRL_V,	ctStandard,	aSortPlaylist);
-	BIND(KEY_CTRL_R,	ctStandard,	aReversePlaylist);
-	BIND(KEY_CTRL_F,	ctStandard,	aApplyFilter);
-	BIND(KEY_CTRL_G,	ctStandard,	aDisableFilter);
-	BIND('/',		ctStandard,	aFind);
-	BIND('/',		ctStandard,	aFindItemForward);
-	BIND('?',		ctStandard,	aFind);
-	BIND('?',		ctStandard,	aFindItemBackward);
-	BIND('.',		ctStandard,	aNextFoundItem);
-	BIND(',',		ctStandard,	aPreviousFoundItem);
-	BIND('w',		ctStandard,	aToggleFindMode);
-	BIND('e',		ctStandard,	aEditSong);
-	BIND('e',		ctStandard,	aEditLibraryTag);
-	BIND('e',		ctStandard,	aEditLibraryAlbum);
-	BIND('e',		ctStandard,	aEditDirectoryName);
-	BIND('e',		ctStandard,	aEditPlaylistName);
-	BIND('e',		ctStandard,	aEditLyrics);
-	BIND('i',		ctStandard,	aShowSongInfo);
-	BIND('I',		ctStandard,	aShowArtistInfo);
-	BIND('g',		ctStandard,	aJumpToPositionInSong);
-	BIND('l',		ctStandard,	aShowLyrics);
-	BIND('v',		ctStandard,	aReverseSelection);
-	BIND('V',		ctStandard,	aDeselectItems);
-	BIND('B',		ctStandard,	aSelectAlbum);
-	BIND('a',		ctStandard,	aAddSelectedItems);
-	BIND('c',		ctStandard,	aClearPlaylist);
-	BIND('c',		ctStandard,	aClearMainPlaylist);
-	BIND('C',		ctStandard,	aCropPlaylist);
-	BIND('C',		ctStandard,	aCropMainPlaylist);
-	BIND('m',		ctStandard,	aMoveSortOrderUp);
-	BIND('m',		ctStandard,	aMoveSelectedItemsUp);
-	BIND('n',		ctStandard,	aMoveSortOrderDown);
-	BIND('n',		ctStandard,	aMoveSelectedItemsDown);
-	BIND('M',		ctStandard,	aMoveSelectedItemsTo);
-	BIND('A',		ctStandard,	aAdd);
-	BIND('S',		ctStandard,	aSavePlaylist);
-	BIND('o',		ctStandard,	aJumpToPlayingSong);
-	BIND('G',		ctStandard,	aJumpToBrowser);
-	BIND('G',		ctStandard,	aJumpToPlaylistEditor);
-	BIND('~',		ctStandard,	aJumpToMediaLibrary);
-	BIND('E',		ctStandard,	aJumpToTagEditor);
-	BIND('U',		ctStandard,	aToggleAutoCenter);
-	BIND('p',		ctStandard,	aToggleDisplayMode);
-	BIND('\\',		ctStandard,	aToggleInterface);
-	BIND('!',		ctStandard,	aToggleSeparatorsInPlaylist);
-	BIND('L',		ctStandard,	aToggleLyricsFetcher);
-	BIND('F',		ctStandard,	aToggleFetchingLyricsInBackground);
-	BIND(KEY_CTRL_L,	ctStandard,	aToggleScreenLock);
-	BIND('`',		ctStandard,	aToggleBrowserSortMode);
-	BIND('`',		ctStandard,	aToggleLibraryTagType);
-	BIND('`',		ctStandard,	aRefetchLyrics);
-	BIND('`',		ctStandard,	aRefetchArtistInfo);
-	BIND('`',		ctStandard,	aAddRandomItems);
-	BIND(KEY_CTRL_P,	ctStandard,	aSetSelectedItemsPriority);
-	BIND('q',		ctStandard,	aQuit);
-	
-	BIND('k',		ctStandard,	aScrollUp);
-	BIND('j',		ctStandard,	aScrollDown);
-	BIND('d',		ctStandard,	aDelete);
-	BIND('+',		ctStandard,	aVolumeUp);
-	BIND('-',		ctStandard,	aVolumeDown);
-	BIND(KEY_F1,		ctNCurses,	aShowHelp);
-	BIND(KEY_F2,		ctNCurses,	aShowPlaylist);
-	BIND(KEY_F3,		ctNCurses,	aShowBrowser);
-	BIND(KEY_F4,		ctNCurses,	aShowSearchEngine);
-	BIND(KEY_F5,		ctNCurses,	aShowMediaLibrary);
-	BIND(KEY_F6,		ctNCurses,	aShowPlaylistEditor);
-	BIND(KEY_F7,		ctNCurses,	aShowTagEditor);
-	BIND(KEY_F8,		ctNCurses,	aShowOutputs);
-	BIND(KEY_F9,		ctNCurses,	aShowVisualizer);
-	BIND(KEY_F10,		ctNCurses,	aShowClock);
-	BIND('Q',		ctStandard,	aQuit);
-	
-#	undef BIND
+	Bind_('k',		ctStandard,	aScrollUp);
+	Bind_('j',		ctStandard,	aScrollDown);
+	Bind_('d',		ctStandard,	aDelete);
+	Bind_('+',		ctStandard,	aVolumeUp);
+	Bind_('-',		ctStandard,	aVolumeDown);
+	Bind_(KEY_F1,		ctNCurses,	aShowHelp);
+	Bind_(KEY_F2,		ctNCurses,	aShowPlaylist);
+	Bind_(KEY_F3,		ctNCurses,	aShowBrowser);
+	Bind_(KEY_F4,		ctNCurses,	aShowSearchEngine);
+	Bind_(KEY_F5,		ctNCurses,	aShowMediaLibrary);
+	Bind_(KEY_F6,		ctNCurses,	aShowPlaylistEditor);
+	Bind_(KEY_F7,		ctNCurses,	aShowTagEditor);
+	Bind_(KEY_F8,		ctNCurses,	aShowOutputs);
+	Bind_(KEY_F9,		ctNCurses,	aShowVisualizer);
+	Bind_(KEY_F10,		ctNCurses,	aShowClock);
+	Bind_('Q',		ctStandard,	aQuit);
 }
 
 void Configuration::SetDefaults()

src/settings.h

@@ -21,6 +21,7 @@
 #ifndef _SETTINGS_H
 #define _SETTINGS_H
 
+#include <cassert>
 #include <vector>
 
 #include <mpd/client.h>
@@ -45,16 +46,41 @@ struct Column
 	bool display_empty_tag;
 };
 
+struct Bind
+{
+	typedef std::vector<Action *> ActionChain;
+	
+	Bind(ActionType at) : isThisSingle(true), itsAction(Action::Get(at)) { }
+	Bind(ActionChain *chain) : isThisSingle(false), itsChain(chain) { }
+	
+	bool isSingle() const { return isThisSingle; }
+	ActionChain *getChain() const { assert(!isThisSingle); return itsChain; }
+	Action *getAction() const { assert(isThisSingle); return itsAction; }
+	
+	private:
+		bool isThisSingle;
+		union {
+			Action *itsAction;
+			ActionChain *itsChain;
+		};
+};
+
 struct KeyConfiguration
 {
 	typedef std::pair<
-			std::multimap<Action::Key, Action *>::iterator
-		,	std::multimap<Action::Key, Action *>::iterator
+			std::multimap<Action::Key, Bind>::iterator
+		,	std::multimap<Action::Key, Bind>::iterator
 		> Binding;
 	
 	void GenerateBindings();
 	
-	std::multimap<Action::Key, Action *> Bindings;
+	std::multimap<Action::Key, Bind> Bindings;
+	
+	private:
+		template <typename T> void Bind_(wchar_t c, CharType ct, T t)
+		{
+			Bindings.insert(std::make_pair(Action::Key(c, ct), Bind(t)));
+		}
 };
 
 struct Configuration