MediaCommands.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Core / CSharp / System / Windows / Input / Command / MediaCommands.cs / 1305600 / MediaCommands.cs
                        

                        
                            //---------------------------------------------------------------------------- 
//
// 
//    Copyright (C) Microsoft Corporation.  All rights reserved.
//  
//
// 
// Description: The MediaCommands class defines a standard set of commands that act on Media. 
//
//              See spec at : http://avalon/CoreUI/Specs%20%20Eventing%20and%20Commanding/CommandLibrarySpec.mht 
//
//
// History:
//  03/31/2004 : chandras - Created 
//  04/28/2004 : Added Accelerator table loading from Resource
//  02/02/2005 : Created MediaCommands class from CommandLibrary class. 
// 
//---------------------------------------------------------------------------
using System; 
using System.Windows;
using System.Windows.Input;
using System.Collections;
using System.ComponentModel; 

using SR=MS.Internal.PresentationCore.SR; 
using SRID=MS.Internal.PresentationCore.SRID; 

namespace System.Windows.Input 
{
    /// 
    /// MediaCommands - Set of Standard Commands
    ///  
    public static class MediaCommands
    { 
        //----------------------------------------------------- 
        //
        //  Public Methods 
        //
        //-----------------------------------------------------
#region Public Methods
 
        /// 
        /// Play Command 
        ///  
        public static RoutedUICommand Play
        { 
            get { return _EnsureCommand(CommandId.Play); }
        }

        ///  
        /// Pause Command
        ///  
        public static RoutedUICommand Pause 
        {
            get { return _EnsureCommand(CommandId.Pause); } 
        }

        /// 
        /// Stop Command 
        /// 
        public static RoutedUICommand Stop 
        { 
            get { return _EnsureCommand(CommandId.Stop); }
        } 

        /// 
        /// Record Command
        ///  
        public static RoutedUICommand Record
        { 
            get { return _EnsureCommand(CommandId.Record); } 
        }
 
        /// 
        /// NextTrack Command
        /// 
        public static RoutedUICommand NextTrack 
        {
            get { return _EnsureCommand(CommandId.NextTrack); } 
        } 

        ///  
        /// PreviousTrack Command
        /// 
        public static RoutedUICommand PreviousTrack
        { 
            get { return _EnsureCommand(CommandId.PreviousTrack); }
        } 
 
        /// 
        /// FastForward Command 
        /// 
        public static RoutedUICommand FastForward
        {
            get { return _EnsureCommand(CommandId.FastForward); } 
        }
 
        ///  
        /// Rewind Command
        ///  
        public static RoutedUICommand Rewind
        {
            get { return _EnsureCommand(CommandId.Rewind); }
        } 

        ///  
        /// ChannelUp Command 
        /// 
        public static RoutedUICommand ChannelUp 
        {
            get { return _EnsureCommand(CommandId.ChannelUp); }
        }
 
        /// 
        /// ChannelDown Command 
        ///  
        public static RoutedUICommand ChannelDown
        { 
            get { return _EnsureCommand(CommandId.ChannelDown); }
        }

        ///  
        /// TogglePlayPause Command
        ///  
        public static RoutedUICommand TogglePlayPause 
        {
            get {return _EnsureCommand(CommandId.TogglePlayPause);} 
        }

        /// 
        /// Select Command 
        /// 
        public static RoutedUICommand Select 
        { 
            get {return _EnsureCommand(CommandId.Select);}
        } 

        /// 
        /// IncreaseVolume Command
        ///  
        public static RoutedUICommand IncreaseVolume
        { 
            get { return _EnsureCommand(CommandId.IncreaseVolume); } 
        }
 
        /// 
        /// DecreaseVolume Command
        /// 
        public static RoutedUICommand DecreaseVolume 
        {
            get { return _EnsureCommand(CommandId.DecreaseVolume); } 
        } 
        /// 
        /// MuteVolume Command 
        /// 
        public static RoutedUICommand MuteVolume
        {
            get { return _EnsureCommand(CommandId.MuteVolume); } 
        }
        ///  
        /// IncreaseTreble Command 
        /// 
        public static RoutedUICommand IncreaseTreble 
        {
            get { return _EnsureCommand(CommandId.IncreaseTreble); }
        }
        ///  
        /// DecreaseTreble Command
        ///  
        public static RoutedUICommand DecreaseTreble 
        {
            get { return _EnsureCommand(CommandId.DecreaseTreble); } 
        }
        /// 
        /// IncreaseBass Command
        ///  
        public static RoutedUICommand IncreaseBass
        { 
            get { return _EnsureCommand(CommandId.IncreaseBass); } 
        }
        ///  
        /// DecreaseBass Command
        /// 
        public static RoutedUICommand DecreaseBass
        { 
            get { return _EnsureCommand(CommandId.DecreaseBass); }
        } 
        ///  
        /// BoostBass Command
        ///  
        public static RoutedUICommand BoostBass
        {
            get { return _EnsureCommand(CommandId.BoostBass); }
        } 
        /// 
        /// IncreaseMicrophoneVolume Command 
        ///  
        public static RoutedUICommand IncreaseMicrophoneVolume
        { 
            get { return _EnsureCommand(CommandId.IncreaseMicrophoneVolume); }
        }

        ///  
        /// DecreaseMicrophoneVolume Command
        ///  
        public static RoutedUICommand DecreaseMicrophoneVolume 
        {
            get { return _EnsureCommand(CommandId.DecreaseMicrophoneVolume); } 
        }
        /// 
        /// MuteMicrophoneVolume Command
        ///  
        public static RoutedUICommand MuteMicrophoneVolume
        { 
            get { return _EnsureCommand(CommandId.MuteMicrophoneVolume); } 
        }
        ///  
        /// ToggleMicrophoneOnOff Command
        /// 
        public static RoutedUICommand ToggleMicrophoneOnOff
        { 
            get { return _EnsureCommand(CommandId.ToggleMicrophoneOnOff); }
        } 
#endregion Public Methods 

        //------------------------------------------------------ 
        //
        //  Private Methods
        //
        //----------------------------------------------------- 
        #region Private Methods
        private static string GetPropertyName(CommandId commandId) 
        { 
            string propertyName = String.Empty;
 
            switch (commandId)
            {
                case CommandId.Play : propertyName = "Play"; break;
                case CommandId.Pause: propertyName = "Pause"; break; 
                case CommandId.Stop : propertyName = "Stop"; break;
                case CommandId.Record: propertyName = "Record"; break; 
                case CommandId.NextTrack: propertyName = "NextTrack"; break; 
                case CommandId.PreviousTrack: propertyName = "PreviousTrack"; break;
                case CommandId.FastForward: propertyName = "FastForward"; break; 
                case CommandId.Rewind: propertyName = "Rewind"; break;
                case CommandId.ChannelUp: propertyName = "ChannelUp"; break;
                case CommandId.ChannelDown: propertyName = "ChannelDown"; break;
                case CommandId.TogglePlayPause: propertyName = "TogglePlayPause"; break; 
                case CommandId.IncreaseVolume: propertyName = "IncreaseVolume"; break;
                case CommandId.DecreaseVolume: propertyName = "DecreaseVolume"; break; 
                case CommandId.MuteVolume: propertyName = "MuteVolume"; break; 
                case CommandId.IncreaseTreble: propertyName = "IncreaseTreble"; break;
                case CommandId.DecreaseTreble: propertyName = "DecreaseTreble"; break; 
                case CommandId.IncreaseBass: propertyName = "IncreaseBass"; break;
                case CommandId.DecreaseBass: propertyName = "DecreaseBass"; break;
                case CommandId.BoostBass: propertyName = "BoostBass"; break;
                case CommandId.IncreaseMicrophoneVolume: propertyName = "IncreaseMicrophoneVolume"; break; 
                case CommandId.DecreaseMicrophoneVolume: propertyName = "DecreaseMicrophoneVolume"; break;
                case CommandId.MuteMicrophoneVolume: propertyName = "MuteMicrophoneVolume"; break; 
                case CommandId.ToggleMicrophoneOnOff: propertyName = "ToggleMicrophoneOnOff"; break; 
                case CommandId.Select:propertyName = "Select";break;
        } 
            return propertyName;
        }

        internal static string GetUIText(byte commandId) 
        {
            string uiText = String.Empty; 
 
            switch ((CommandId)commandId)
            { 
                case  CommandId.Play: uiText = SR.Get(SRID.MediaPlayText); break;
                case  CommandId.Pause: uiText = SR.Get(SRID.MediaPauseText); break;
                case  CommandId.Stop: uiText = SR.Get(SRID.MediaStopText); break;
                case  CommandId.Record: uiText = SR.Get(SRID.MediaRecordText); break; 
                case  CommandId.NextTrack: uiText = SR.Get(SRID.MediaNextTrackText); break;
                case  CommandId.PreviousTrack: uiText = SR.Get(SRID.MediaPreviousTrackText); break; 
                case  CommandId.FastForward: uiText = SR.Get(SRID.MediaFastForwardText); break; 
                case  CommandId.Rewind: uiText = SR.Get(SRID.MediaRewindText); break;
                case  CommandId.ChannelUp: uiText = SR.Get(SRID.MediaChannelUpText); break; 
                case  CommandId.ChannelDown: uiText = SR.Get(SRID.MediaChannelDownText); break;
                case  CommandId.TogglePlayPause: uiText = SR.Get(SRID.MediaTogglePlayPauseText); break;
                case  CommandId.IncreaseVolume: uiText = SR.Get(SRID.MediaIncreaseVolumeText); break;
                case  CommandId.DecreaseVolume: uiText = SR.Get(SRID.MediaDecreaseVolumeText); break; 
                case  CommandId.MuteVolume: uiText = SR.Get(SRID.MediaMuteVolumeText); break;
                case  CommandId.IncreaseTreble: uiText = SR.Get(SRID.MediaIncreaseTrebleText); break; 
                case  CommandId.DecreaseTreble: uiText = SR.Get(SRID.MediaDecreaseTrebleText); break; 
                case  CommandId.IncreaseBass: uiText = SR.Get(SRID.MediaIncreaseBassText); break;
                case  CommandId.DecreaseBass: uiText = SR.Get(SRID.MediaDecreaseBassText); break; 
                case  CommandId.BoostBass: uiText = SR.Get(SRID.MediaBoostBassText); break;
                case  CommandId.IncreaseMicrophoneVolume: uiText = SR.Get(SRID.MediaIncreaseMicrophoneVolumeText); break;
                case  CommandId.DecreaseMicrophoneVolume: uiText = SR.Get(SRID.MediaDecreaseMicrophoneVolumeText); break;
                case  CommandId.MuteMicrophoneVolume: uiText = SR.Get(SRID.MediaMuteMicrophoneVolumeText); break; 
                case  CommandId.ToggleMicrophoneOnOff: uiText = SR.Get(SRID.MediaToggleMicrophoneOnOffText); break;
                case  CommandId.Select:uiText = SR.Get(SRID.MediaSelectText);break; 
            } 
            return uiText;
        } 

        internal static InputGestureCollection LoadDefaultGestureFromResource(byte commandId)
        {
            InputGestureCollection gestures = new InputGestureCollection(); 

            //Standard Commands 
            switch ((CommandId)commandId) 
            {
                case  CommandId.Play: 
                    KeyGesture.AddGesturesFromResourceStrings(
                        SR.Get(SRID.MediaPlayKey),
                        SR.Get(SRID.MediaPlayKeyDisplayString),
                        gestures); 
                    break;
                case  CommandId.Pause: 
                    KeyGesture.AddGesturesFromResourceStrings( 
                        SR.Get(SRID.MediaPauseKey),
                        SR.Get(SRID.MediaPauseKeyDisplayString), 
                        gestures);
                    break;
                case  CommandId.Stop:
                    KeyGesture.AddGesturesFromResourceStrings( 
                        SR.Get(SRID.MediaStopKey),
                        SR.Get(SRID.MediaStopKeyDisplayString), 
                        gestures); 
                    break;
                case  CommandId.Record: 
                    KeyGesture.AddGesturesFromResourceStrings(
                        SR.Get(SRID.MediaRecordKey),
                        SR.Get(SRID.MediaRecordKeyDisplayString),
                        gestures); 
                    break;
                case  CommandId.NextTrack: 
                    KeyGesture.AddGesturesFromResourceStrings( 
                        SR.Get(SRID.MediaNextTrackKey),
                        SR.Get(SRID.MediaNextTrackKeyDisplayString), 
                        gestures);
                    break;
                case  CommandId.PreviousTrack:
                    KeyGesture.AddGesturesFromResourceStrings( 
                        SR.Get(SRID.MediaPreviousTrackKey),
                        SR.Get(SRID.MediaPreviousTrackKeyDisplayString), 
                        gestures); 
                    break;
                case  CommandId.FastForward: 
                    KeyGesture.AddGesturesFromResourceStrings(
                        SR.Get(SRID.MediaFastForwardKey),
                        SR.Get(SRID.MediaFastForwardKeyDisplayString),
                        gestures); 
                    break;
                case  CommandId.Rewind: 
                    KeyGesture.AddGesturesFromResourceStrings( 
                        SR.Get(SRID.MediaRewindKey),
                        SR.Get(SRID.MediaRewindKeyDisplayString), 
                        gestures);
                    break;
                case  CommandId.ChannelUp:
                    KeyGesture.AddGesturesFromResourceStrings( 
                        SR.Get(SRID.MediaChannelUpKey),
                        SR.Get(SRID.MediaChannelUpKeyDisplayString), 
                        gestures); 
                    break;
                case  CommandId.ChannelDown: 
                    KeyGesture.AddGesturesFromResourceStrings(
                        SR.Get(SRID.MediaChannelDownKey),
                        SR.Get(SRID.MediaChannelDownKeyDisplayString),
                        gestures); 
                    break;
                case  CommandId.TogglePlayPause: 
                    KeyGesture.AddGesturesFromResourceStrings( 
                        SR.Get(SRID.MediaTogglePlayPauseKey),
                        SR.Get(SRID.MediaTogglePlayPauseKeyDisplayString), 
                        gestures);
                    break;
                case  CommandId.IncreaseVolume:
                    KeyGesture.AddGesturesFromResourceStrings( 
                        SR.Get(SRID.MediaIncreaseVolumeKey),
                        SR.Get(SRID.MediaIncreaseVolumeKeyDisplayString), 
                        gestures); 
                    break;
                case  CommandId.DecreaseVolume: 
                    KeyGesture.AddGesturesFromResourceStrings(
                        SR.Get(SRID.MediaDecreaseVolumeKey),
                        SR.Get(SRID.MediaDecreaseVolumeKeyDisplayString),
                        gestures); 
                    break;
                case  CommandId.MuteVolume: 
                    KeyGesture.AddGesturesFromResourceStrings( 
                        SR.Get(SRID.MediaMuteVolumeKey),
                        SR.Get(SRID.MediaMuteVolumeKeyDisplayString), 
                        gestures);
                    break;
                case  CommandId.IncreaseTreble:
                    KeyGesture.AddGesturesFromResourceStrings( 
                        SR.Get(SRID.MediaIncreaseTrebleKey),
                        SR.Get(SRID.MediaIncreaseTrebleKeyDisplayString), 
                        gestures); 
                    break;
                case  CommandId.DecreaseTreble: 
                    KeyGesture.AddGesturesFromResourceStrings(
                        SR.Get(SRID.MediaDecreaseTrebleKey),
                        SR.Get(SRID.MediaDecreaseTrebleKeyDisplayString),
                        gestures); 
                    break;
                case  CommandId.IncreaseBass: 
                    KeyGesture.AddGesturesFromResourceStrings( 
                        SR.Get(SRID.MediaIncreaseBassKey),
                        SR.Get(SRID.MediaIncreaseBassKeyDisplayString), 
                        gestures);
                    break;
                case  CommandId.DecreaseBass:
                    KeyGesture.AddGesturesFromResourceStrings( 
                        SR.Get(SRID.MediaDecreaseBassKey),
                        SR.Get(SRID.MediaDecreaseBassKeyDisplayString), 
                        gestures); 
                    break;
                case  CommandId.BoostBass: 
                    KeyGesture.AddGesturesFromResourceStrings(
                        SR.Get(SRID.MediaBoostBassKey),
                        SR.Get(SRID.MediaBoostBassKeyDisplayString),
                        gestures); 
                    break;
                case  CommandId.IncreaseMicrophoneVolume: 
                    KeyGesture.AddGesturesFromResourceStrings( 
                        SR.Get(SRID.MediaIncreaseMicrophoneVolumeKey),
                        SR.Get(SRID.MediaIncreaseMicrophoneVolumeKeyDisplayString), 
                        gestures);
                    break;
                case  CommandId.DecreaseMicrophoneVolume:
                    KeyGesture.AddGesturesFromResourceStrings( 
                        SR.Get(SRID.MediaDecreaseMicrophoneVolumeKey),
                        SR.Get(SRID.MediaDecreaseMicrophoneVolumeKeyDisplayString), 
                        gestures); 
                    break;
                case  CommandId.MuteMicrophoneVolume: 
                    KeyGesture.AddGesturesFromResourceStrings(
                        SR.Get(SRID.MediaMuteMicrophoneVolumeKey),
                        SR.Get(SRID.MediaMuteMicrophoneVolumeKeyDisplayString),
                        gestures); 
                    break;
                case  CommandId.ToggleMicrophoneOnOff: 
                    KeyGesture.AddGesturesFromResourceStrings( 
                        SR.Get(SRID.MediaToggleMicrophoneOnOffKey),
                        SR.Get(SRID.MediaToggleMicrophoneOnOffKeyDisplayString), 
                        gestures);
                    break;
                case  CommandId.Select:
                    KeyGesture.AddGesturesFromResourceStrings( 
                        SR.Get(SRID.MediaSelectKey),
                        SR.Get(SRID.MediaSelectKeyDisplayString), 
                        gestures); 
                    break;
            } 
            return gestures;
        }

        private static RoutedUICommand _EnsureCommand(CommandId idCommand) 
        {
            if (idCommand >= 0 && idCommand < CommandId.Last) 
            { 
                lock (_internalCommands.SyncRoot)
                { 
                    if (_internalCommands[(int)idCommand] == null)
                    {
                        RoutedUICommand newCommand = new RoutedUICommand(GetPropertyName(idCommand), typeof(MediaCommands), (byte)idCommand);
                        newCommand.AreInputGesturesDelayLoaded = true; 
                        _internalCommands[(int)idCommand] = newCommand;
                    } 
                } 
                return _internalCommands[(int)idCommand];
            } 
            return null;
        }
        #endregion Private Methods
 
        //------------------------------------------------------
        // 
        //  Private Fields 
        //
        //------------------------------------------------------ 
        #region Private Fields
        // these constants will go away in future, its just to index into the right one.
        private enum CommandId : byte
        { 
            // Formatting
            Play = 1, 
            Pause = 2, 
            Stop = 3,
            Record = 4, 
            NextTrack = 5,
            PreviousTrack = 6,
            FastForward = 7,
            Rewind = 8, 
            ChannelUp = 9,
            ChannelDown = 10, 
            TogglePlayPause = 11, 
            IncreaseVolume = 12,
            DecreaseVolume = 13, 
            MuteVolume = 14,
            IncreaseTreble = 15,
            DecreaseTreble = 16,
            IncreaseBass = 17, 
            DecreaseBass = 18,
            BoostBass = 19, 
            IncreaseMicrophoneVolume = 20, 
            DecreaseMicrophoneVolume = 21,
            MuteMicrophoneVolume = 22, 
            ToggleMicrophoneOnOff = 23,
            Select = 24,

            // Last 
            Last = 25
        } 
 
        private static RoutedUICommand[] _internalCommands = new RoutedUICommand[(int)CommandId.Last];
        #endregion Private Fields 
    }
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.

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