From a5019465a52dbbe17c625c1c1045427c5059fe9e Mon Sep 17 00:00:00 2001
From: Anton Khirnov <wyskas@gmail.com>
Date: Sat, 19 Sep 2009 10:49:10 +0200
Subject: Playlist: support for moving songs with drag&drop

---
 nephilim/common.py           | 32 ++++++++++++++++++++++++++++++++
 nephilim/mpclient.py         | 11 +++--------
 nephilim/plugins/Library.py  | 20 +-------------------
 nephilim/plugins/Playlist.py | 18 +++++++++++++++---
 4 files changed, 51 insertions(+), 30 deletions(-)

diff --git a/nephilim/common.py b/nephilim/common.py
index 7d6ba06..e3af3ef 100644
--- a/nephilim/common.py
+++ b/nephilim/common.py
@@ -146,3 +146,35 @@ class MetadataFetcher(QtCore.QObject):
                 pass
             self.rep.abort()
             self.rep = None
+
+class SongsMimeData(QtCore.QMimeData):
+    # private
+    __songs      = None
+    __plistsongs = None
+
+    def set_songs(self, songs):
+        self.__songs = songs
+
+    def songs(self):
+        return self.__songs
+
+    def set_plistsongs(self, songs):
+        self.__plistsongs = songs
+
+    def plistsongs(self):
+        return self.__plistsongs
+
+    def formats(self):
+        types = QtCore.QMimeData.formats(self)
+        if self.__songs:
+            types += MIMETYPES['songs']
+        if self.__plistsongs:
+            types += MIMETYPES['plistsongs']
+        return types
+
+    def hasFormat(self, format):
+        if format == MIMETYPES['songs'] and self.__songs:
+            return True
+        elif format == MIMETYPES['plistsongs'] and self.__plistsongs:
+            return True
+        return QtCore.QMimeData.hasFormat(self, format)
diff --git a/nephilim/mpclient.py b/nephilim/mpclient.py
index 31b242f..9e287d7 100644
--- a/nephilim/mpclient.py
+++ b/nephilim/mpclient.py
@@ -295,16 +295,11 @@ class MPClient(QtCore.QObject):
         if self._status['state'] == 'stop' and ret:
             self.play(ret[0])
     def move(self, source, target):
-        """Move the songs in playlist. Takes a list of source ids and one target position."""
-        self.logger.info('Moving %d to %d.'%(source, target))
+        """Move the songs in playlist. Takes one source id and one target position."""
+        self.logger.info('Moving %s to %s.'%(source, target))
         if not self.__check_command_ok('moveid'):
             return
-        self._client.command_list_ok_begin()
-        i = 0
-        for id in source:
-            self._client.moveid(id, target + i)
-            i += 1
-        list(self._client.command_list_end())
+        self._client.moveid(source, target)
 
     #### private ####
     def __finish_connect(self):
diff --git a/nephilim/plugins/Library.py b/nephilim/plugins/Library.py
index 348069c..c746af6 100644
--- a/nephilim/plugins/Library.py
+++ b/nephilim/plugins/Library.py
@@ -19,7 +19,7 @@ from PyQt4 import QtGui, QtCore
 from PyQt4.QtCore import QVariant
 
 from ..plugin import Plugin
-from ..common import MIMETYPES
+from ..common import MIMETYPES, SongsMimeData
 
 class Library(Plugin):
     # public, const
@@ -260,21 +260,3 @@ class LibraryWidget(QtGui.QWidget):
             paths.append(song)
         self.plugin.mpclient.add(paths)
 
-class SongsMimeData(QtCore.QMimeData):
-    # private
-    __songs = None
-
-    def set_songs(self, songs):
-        self.__songs = songs
-
-    def songs(self):
-        return self.__songs
-
-    def formats(self):
-        types = QtCore.QMimeData.formats(self)
-        return types if not self.__songs else types + [MIMETYPES['songs']]
-
-    def hasFormat(self, format):
-        if format == MIMETYPES['songs'] and self.__songs:
-            return True
-        return QtCore.QMimeData.hasFormat(self, format)
diff --git a/nephilim/plugins/Playlist.py b/nephilim/plugins/Playlist.py
index b6266cc..72e1d8b 100644
--- a/nephilim/plugins/Playlist.py
+++ b/nephilim/plugins/Playlist.py
@@ -19,7 +19,7 @@ from PyQt4 import QtGui, QtCore
 from PyQt4.QtCore import QVariant
 
 from ..plugin import Plugin
-from ..common import MIMETYPES
+from ..common import MIMETYPES, SongsMimeData
 
 class Playlist(Plugin):
     # public, const
@@ -82,7 +82,7 @@ class PlaylistWidget(QtGui.QWidget):
             # drag&drop
             self.viewport().setAcceptDrops(True)
             self.setDropIndicatorShown(True)
-            self.setDragDropMode(QtGui.QAbstractItemView.DropOnly)
+            self.setDragDropMode(QtGui.QAbstractItemView.DragDrop)
 
             columns = self.plugin.settings.value(self.plugin.name + '/columns').toStringList()
             self.setColumnCount(len(columns))
@@ -118,8 +118,20 @@ class PlaylistWidget(QtGui.QWidget):
             else:
                 QtGui.QTreeWidget.keyPressEvent(self, event)
 
+        def mimeData(self, items):
+            data = SongsMimeData()
+            data.set_plistsongs([items[0].id])
+            return data
+
         def dropMimeData(self, parent, index, data, action):
-            if data.hasFormat(MIMETYPES['songs']):
+            if data.hasFormat(MIMETYPES['plistsongs']):
+                if parent:
+                    index = self.indexOfTopLevelItem(parent)
+                elif index >= self.topLevelItemCount():
+                    index = self.topLevelItemCount() - 1
+                self.plugin.mpclient.move(data.plistsongs()[0], index)
+                return True
+            elif data.hasFormat(MIMETYPES['songs']):
                 if parent:
                     index = self.indexOfTopLevelItem(parent)
                 self.plugin.mpclient.add(data.songs(), index)
-- 
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