Moved playlist tabs related widgets to its own files.

wobuzz/ui/playlist_tabs/tab_widget.py

@@ -0,0 +1,30 @@
+#!/usr/bin/python3
+
+from PyQt6.QtWidgets import QTabWidget, QTabBar
+
+from .tab_bar import PlaylistTabBar
+from .tab_title import TabTitle
+
+
+class PlaylistTabs(QTabWidget):
+    def __init__(self, library, parent=None):
+        self.library = library
+
+        super().__init__(parent)
+
+        self.tab_bar = PlaylistTabBar(self)
+        self.setTabBar(self.tab_bar)
+        self.setDocumentMode(True)
+
+        self.setMovable(True)
+        self.setAcceptDrops(True)
+
+    def addTab(self, widget, label):
+        super().addTab(widget, None)
+
+        index = self.tab_bar.count() - 1
+
+        title = TabTitle(label, self.tab_bar, index)
+
+        self.tab_bar.setTabButton(index, QTabBar.ButtonPosition.RightSide, title)
+