Line data    Source code

       1              : import 'package:flutter/material.dart';
       2              : import 'package:flutter_chrome_cast/_session_manager/cast_session_manager.dart';
       3              : import 'package:get/get_rx/get_rx.dart';
       4              : 
       5              : /// A widget that provides volume control for Google Cast devices.
       6              : ///
       7              : /// This widget displays a volume icon that, when tapped, shows a popup
       8              : /// with a slider to control the volume of the currently connected Cast device.
       9              : class GoogleCastVolume extends StatefulWidget {
      10              :   /// Color of the volume icon.
      11              :   final Color? iconColor;
      12              : 
      13              :   /// Size of the volume icon.
      14              :   final double? iconSize;
      15              : 
      16              :   /// Background color of the volume control popup.
      17              :   final Color? popupBackgroundColor;
      18              : 
      19              :   /// Color of the active portion of the volume slider.
      20              :   final Color? sliderActiveColor;
      21              : 
      22              :   /// Color of the inactive portion of the volume slider.
      23              :   final Color? sliderInactiveColor;
      24              : 
      25              :   /// Color of the volume slider thumb/handle.
      26              :   final Color? sliderThumbColor;
      27              : 
      28              :   /// Creates a Google Cast volume control widget.
      29              :   ///
      30              :   /// All styling parameters are optional and will use default Material Design
      31              :   /// colors if not specified.
      32            0 :   const GoogleCastVolume({
      33              :     super.key,
      34              :     this.iconColor,
      35              :     this.iconSize,
      36              :     this.popupBackgroundColor,
      37              :     this.sliderActiveColor,
      38              :     this.sliderInactiveColor,
      39              :     this.sliderThumbColor,
      40              :   });
      41              : 
      42            0 :   @override
      43            0 :   State<GoogleCastVolume> createState() => _GoogleCastVolumeState();
      44              : }
      45              : 
      46              : class _GoogleCastVolumeState extends State<GoogleCastVolume> {
      47            0 :   @override
      48              :   void initState() {
      49            0 :     GoogleCastSessionManager.instance.currentSessionStream.listen((event) {
      50            0 :       volumeLevel.value = event?.currentDeviceVolume ?? 0;
      51            0 :       volumeMuted.value = event?.currentDeviceMuted ?? false;
      52              :     });
      53            0 :     super.initState();
      54              :   }
      55              : 
      56              :   final volumeLevel = 0.5.obs;
      57              :   final volumeMuted = false.obs;
      58              :   bool isSliderTapDown = false;
      59              : 
      60            0 :   @override
      61              :   Widget build(BuildContext context) {
      62            0 :     return PopupMenuButton(
      63              :       padding: const EdgeInsets.symmetric(horizontal: 4, vertical: 4),
      64            0 :       shape: RoundedRectangleBorder(
      65            0 :         borderRadius: BorderRadius.circular(10),
      66              :       ),
      67            0 :       color: widget.popupBackgroundColor,
      68            0 :       icon: StreamBuilder(
      69            0 :           stream: volumeMuted.stream,
      70            0 :           builder: (context, snapshot) {
      71            0 :             return Icon(
      72            0 :               volumeMuted.value || volumeLevel.value == 0
      73              :                   ? Icons.volume_off
      74              :                   : Icons.volume_up,
      75            0 :               color: widget.iconColor ?? Colors.white,
      76            0 :               size: widget.iconSize ?? 44,
      77              :             );
      78              :           }),
      79            0 :       itemBuilder: (context) {
      80            0 :         return [
      81            0 :           PopupMenuItem(
      82              :             enabled: false,
      83            0 :             child: StreamBuilder(
      84            0 :               stream: volumeLevel.stream,
      85            0 :               builder: (context, snapshot) {
      86            0 :                 return Slider(
      87            0 :                   value: volumeLevel.value,
      88            0 :                   onChanged: _onVolumeChanged,
      89            0 :                   onChangeStart: _onVolumeChangedStart,
      90            0 :                   onChangeEnd: _onVolumeChangedEnd,
      91            0 :                   activeColor: widget.sliderActiveColor,
      92            0 :                   inactiveColor: widget.sliderInactiveColor,
      93            0 :                   thumbColor: widget.sliderThumbColor,
      94              :                 );
      95              :               },
      96              :             ),
      97              :           ),
      98              :         ];
      99              :       },
     100              :     );
     101              :   }
     102              : 
     103            0 :   void _onVolumeChangedEnd(double value) {
     104            0 :     isSliderTapDown = false;
     105            0 :     GoogleCastSessionManager.instance.setDeviceVolume(value);
     106              :   }
     107              : 
     108            0 :   void _onVolumeChangedStart(double value) {
     109            0 :     isSliderTapDown = true;
     110              :   }
     111              : 
     112            0 :   void _onVolumeChanged(double value) {
     113            0 :     volumeLevel.value = value;
     114              :   }
     115              : }