spacebar to play/pause, enter key to play selected song, arrow key up and down for table navigation

components/MusicTable.py

@@ -1,7 +1,7 @@
 import DBA
 from PyQt5.QtGui import QStandardItem, QStandardItemModel
 from PyQt5.QtWidgets import QTableView
-from PyQt5.QtCore import QTimer
+from PyQt5.QtCore import QTimer, Qt, pyqtSignal
 from tinytag import TinyTag
 from utils import add_files_to_library
 from utils import get_id3_tags
@@ -10,6 +10,8 @@ import logging
 
 
 class MusicTable(QTableView):
+    playPauseSignal = pyqtSignal()
+    enterKey = pyqtSignal()
     def __init__(self, parent=None, qapp=None):
         QTableView.__init__(self, parent)
         self.headers = ['title', 'artist', 'album', 'genre', 'codec', 'year', 'path']
@@ -18,15 +20,38 @@ class MusicTable(QTableView):
         self.current_song_filepath = None
         self.qapp = None
         # self.tableView.resizeColumnsToContents()
-        self.clicked.connect(self.set_selected_song_filepath) # These are faster than the click/double determination
+        self.clicked.connect(self.set_selected_song_filepath)
-        self.doubleClicked.connect(self.set_current_song_filepath) # These are faster than the click/double determination
+        self.doubleClicked.connect(self.set_current_song_filepath) # listens for emitted signal, runs set_current_song_filepath
+        self.enterKey.connect(self.set_current_song_filepath)
         self.fetch_library()
 
+    def keyPressEvent(self, event):
+        """Press a key. Do a thing"""
+        key = event.key()
+        if key == Qt.Key_Space: # Spacebar to play/pause
+            self.toggle_play_pause()
+        elif key == Qt.Key_Up: # Arrow key navigation
+            current_index = self.currentIndex()
+            new_index = self.model.index(current_index.row() - 1, current_index.column())
+            if new_index.isValid():
+                self.setCurrentIndex(new_index)
+        elif key == Qt.Key_Down: # Arrow key navigation
+            current_index = self.currentIndex()
+            new_index = self.model.index(current_index.row() + 1, current_index.column())
+            if new_index.isValid():
+                self.setCurrentIndex(new_index)
+        elif key in (Qt.Key_Return, Qt.Key_Enter):
+            self.enterKey.emit() # Enter key detected
+        else: # Default behavior
+            super().keyPressEvent(event)
+
     def mousePressEvent(self, event):
+        """Press mouse button. Do thing"""
         self.last = "Click"
         QTableView.mousePressEvent(self, event) # Keep original functionality
     
     def mouseReleaseEvent(self, event):
+        """Release mouse button. Do thing"""
         if self.last == "Click":
             QTimer.singleShot(self.qapp.instance().doubleClickInterval(),
                               self.performSingleClickAction)
@@ -39,7 +64,7 @@ class MusicTable(QTableView):
     
     def mouseDoubleClickEvent(self, event):
         self.last = "Double Click"
-        self.doubleClicked.emit(self.selectionModel().currentIndex())
+        self.doubleClicked.emit(self.selectionModel().currentIndex()) # emits the current index of the double clicked song
         QTableView.mouseDoubleClickEvent(self, event) # Keep original functionality
     
     def performSingleClickAction(self):
@@ -47,6 +72,16 @@ class MusicTable(QTableView):
             self.message = "Click"
             self.update()
 
+    def toggle_play_pause(self):
+        """Toggles the currently playing song by emitting a signal"""
+        if not self.current_song_filepath:
+            self.set_current_song_filepath()
+        self.playPauseSignal.emit()
+
+    def choose_new_song(self):
+        """Starts the playback of a new song by emitting a signal"""
+        
+        
     def get_selected_rows(self):
         """Returns a list of indexes for every selected row"""
         rows = []
@@ -61,6 +96,8 @@ class MusicTable(QTableView):
     
     def set_current_song_filepath(self):
         """Sets the filepath of the currently playing/chosen song"""
+        # Setting the current song filepath automatically plays that song
+        # self.tableView listens to this function and plays the audio file located at self.current_song_filepath
         self.current_song_filepath = self.currentIndex().siblingAtColumn(self.headers.index('path')).data()
         print(f'Current song: {self.current_song_filepath}')
         

main.py

@@ -77,6 +77,8 @@ class ApplicationWindow(QMainWindow, Ui_MainWindow):
         ## tableView
         # self.tableView.clicked.connect(self.set_clicked_cell_filepath)
         self.tableView.doubleClicked.connect(self.play_audio_file) # Double click to play song
+        self.tableView.enterKey.connect(self.play_audio_file) # Press Enter to play song
+        self.tableView.playPauseSignal.connect(self.on_play_clicked) # Spacebar toggle playpause signal
         self.tableView.viewport().installEventFilter(self) # for drag & drop functionality
         # self.tableView.model.layoutChanged()
                 ### set column widths