优化初次运行的逻辑

Readme.md

@@ -15,12 +15,6 @@
 - [ ] 自动查找网络歌词
 
 
-### 感觉以下第三方库
-
-- [`python3-mpd2`](https://github.com/Mic92/python-mpd2), 本项目内置了修改版的`python3-mpd2`, 加入了Gtk的信号与槽机制的支持, 并更加友好的方式处理异常, 减少程序崩溃。
-- [`python3-mutagen`](https://github.com/quodlibet/mutagen), 用于获取歌曲文件内嵌的封面。
-
-
 ### 项目依赖
 以`debian 12`为例
 
@@ -28,7 +22,7 @@
 - `python3-gi` gobject
 - `gir1.2-gtk-3.0`  Gtk3
 - `python3-mutagen` 获取歌曲标签信息的库
-- `python3-mpd2` MPD连接库(已内置修改版)
+- `python3-mpd2` MPD连接库(已内置修改版,接入Gtk的信号与槽机制, 并优化了异常处理)
 - `python3-pil` 图像处理库
 - `python3-gi-cairo` 图像处理库
 

usr/lib/sonist/mpd.py

@@ -801,8 +801,7 @@ class MPDClient(MPDClientBase, GObject.Object):
           
             
           if song.get('id') != self.current_song_id:
-            if self.current_song_id is not None:
+            self.emit('song_changed', status, song)
-              self.emit('song_changed', status, song)
             self.current_song_id = song.get('id')
           
           
@@ -825,6 +824,7 @@ class MPDClient(MPDClientBase, GObject.Object):
     self._try_connect()
     if self.connected:
       self.emit('online')
+      self.current_song_id = self.currentsong().get('id')
       self.heart_beat()
 
 

usr/lib/sonist/preferences.py

@@ -23,20 +23,21 @@ class PreferencesWindow(Gtk.Dialog):
     txt1 = Gtk.Label('MPD地址: ')
     txt2 = Gtk.Label('MPD端口: ')
     txt3 = Gtk.Label('音乐目录: ')
-    txt4 = Gtk.Label('自动扫描: ')
+    txt4 = Gtk.Label('更新数据库: ')
-    txt5 = Gtk.Label('   开启时, App启动时会自动扫描音乐变化')
+    txt5 = Gtk.Label('  重新扫描会清空播放列表并停止播放')
     txt6 = Gtk.Label('当前歌曲数: ')
     txt7 = Gtk.Label('0 首')
     input1 = Gtk.Entry(placeholder_text = '默认 127.0.0.1')
     input2 = Gtk.SpinButton.new_with_range(min = 1024, max = 65535, step = 1)
     input3 = Gtk.Entry(placeholder_text = '默认读取 $HOME/.mpd/mpd.conf 中定义的目录')
-    switch = Gtk.Switch()
+    btn = Gtk.Button(label = '重新扫描并重建播放列表')
+    btn.connect('clicked', self.scan_music)
 
     input1.set_size_request(312, -1)
     input1.set_text(config['host'])
     input2.set_value(config['port'])
     input3.set_text(config['music_directory'])
-    switch.set_active(config['auto_scan'])
+
 
 
     grid.attach(txt1, 0, 0, 1, 1)
@@ -50,8 +51,7 @@ class PreferencesWindow(Gtk.Dialog):
 
     grid.attach(txt4, 0, 3, 1, 1)
     box = Gtk.Box()
-    box.add(switch)
+    box.add(btn)
-    box.add(txt5)
     grid.attach(box, 2, 3, 1, 1)
 
     grid.attach(txt6, 0, 4, 1, 1)
@@ -62,7 +62,7 @@ class PreferencesWindow(Gtk.Dialog):
     self.host_input = input1
     self.port_input = input2
     self.dir_input = input3
-    self.switch_input = switch
+    self.scan_input = btn
 
     self.layout.set_border_width(32)
     self.layout.add(grid)
@@ -78,9 +78,26 @@ class PreferencesWindow(Gtk.Dialog):
     mpd.connect('online', lambda o: self.get_mpd_music())
 
 
-  def get_mpd_music(self):
+  def get_mpd_music(self, force = False):
     res = self.mpd.stats()
-    self.scan_result.set_text(f"{res.get('songs')} 首")
+    tips = '扫描完成... 共' if force else ''
+    self.scan_result.set_text(f"{tips}{res.get('songs')} 首")
+
+
+  def scan_music(self, btn):
+    need_resume = self.mpd.status().get('state') == 'play'
+    self.mpd.update()
+    self.mpd.stop()
+    self.mpd.clear()
+    songs = self.mpd.listall()
+
+    for it in songs:
+      self.mpd.add(it['file'])
+    
+    self.get_mpd_music(True)
+
+    if need_resume:
+      self.mpd.play()
 
 
   def show(self):
@@ -100,8 +117,9 @@ class PreferencesWindow(Gtk.Dialog):
       data['host'] = self.host_input.get_text()
       data['port'] = int(self.port_input.get_value())
       data['music_directory'] = self.dir_input.get_text()
-      data['auto_scan'] = self.switch_input.get_active()
+      
       self.app.config_data = data
+
       with open(self.app.config_file, 'w') as f:
         buff = json.dumps(data)
         f.write(buff)

usr/lib/sonist/sonist.py

@@ -48,8 +48,7 @@ class Application(Gtk.Application):
     self.config_data = {
       "host": '127.0.0.1',
       "port": 6600,
-      "music_directory": self.music_dir,
+      "music_directory": self.music_dir
-      "auto_scan": True
     }
 
     if os.path.isfile(self.config_file):
@@ -70,9 +69,10 @@ class Application(Gtk.Application):
 
   @run_async
   def connect_mpd(self):
-    
     self.mpd.start()
 
+
+
   def do_activate(self):
     print('hello mpc')
     self.set_app_menu(None)

usr/lib/sonist/window.py

@@ -254,32 +254,54 @@ class SonistWindow(Gtk.Window):
     
     if is_play:
       self.handler.reset(image_dict['handler_a'])
+      # song = self.mpd.currentsong()
+      # 更新歌曲信息
+      # self.title_box.update(f"{song.get('artist')} - {song.get('title')}")
     else:
       self.handler.reset(image_dict['handler'])
 
     # 切换播放按钮状态
     self.ctrl_box.toggle_play_btn(is_play)
 
+
   @idle
   def update_playtime(self, stat = {}):
     self.stat = stat
-    times = stat['time'] or '0:0'
+    times = stat.get('time') or '0:0'
     times = times.split(':')
     self.timebar.update_time(int(times[0]), int(times[1]))
 
+
   @idle
   def update_volume(self, vol = 100):
     self.ctrl_box.set_volume(vol)
     
+
   @idle
   def sync_state(self, stat = None, song = None, first = False):
     self.ctrl_box.disabled = False
     
     self.stat = stat or self.get_mpd_stat()
-
     state = self.stat.get('state')
 
+    # 首次启动时, 更新数据库
     if first:
+      if self.app.config_data['auto_scan']:
+        self.mpd.update()
+        song_num = int(self.mpd.stats().get('songs'))
+        playlist = [it['file'] for it in self.mpd.playlistinfo()]
+        
+        # 这里只做添加, 不做删除, 重建播放列表在设置里
+        if len(playlist) < song_num:
+          songs = self.mpd.listall()
+          for it in songs:
+            if it['file'] in playlist:
+              continue
+            self.mpd.add(it['file'])
+
+        self.get_mpd_stat()
+      
+
       self.update_play_stat(state == 'play')
       self.update_volume(int(self.stat.get('volume') or 100))
 
@@ -289,11 +311,13 @@ class SonistWindow(Gtk.Window):
         self.ctrl_box.toggle_mode_btn(mode = 'random')
 
 
+
+
     if state != 'stop':
+
       song = song or self.mpd.currentsong()
       # 更新歌曲信息
       self.title_box.update(f"{song.get('artist')} - {song.get('title')}")
-      self.update_playtime(self.stat)
 
       title = song['file']
       title_hex = base64.b64encode(title.encode()).hex()