WinGui: Cancel Scan menu option now greyed out when not scan running.

git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@4998 b64f7644-9d1e-0410-96f1-a4d463321fa5

4 files changed, 113 insertions, 1 deletions

diff --git a/win/CS/HandBrakeWPF/Commands/CancelScanCommand.cs b/win/CS/HandBrakeWPF/Commands/CancelScanCommand.cs
new file mode 100644
index 000000000..617778b08
--- /dev/null
+++ b/win/CS/HandBrakeWPF/Commands/CancelScanCommand.cs
@@ -0,0 +1,105 @@
+// --------------------------------------------------------------------------------------------------------------------

+// <copyright file="CancelScanCommand.cs" company="HandBrake Project (http://handbrake.fr)">

+//   This file is part of the HandBrake source code - It may be used under the terms of the GNU General Public License.

+// </copyright>

+// <summary>

+//   Command to cancel a scan that is in progress

+// </summary>

+// --------------------------------------------------------------------------------------------------------------------

+

+namespace HandBrakeWPF.Commands

+{

+    using System;

+    using System.Windows.Input;

+

+    using HandBrake.ApplicationServices.Services.Interfaces;

+

+    /// <summary>

+    /// Command to cancel a scan that is in progress

+    /// </summary>

+    public class CancelScanCommand : ICommand

+    {

+        /// <summary>

+        /// The scan service wrapper.

+        /// </summary>

+        private readonly IScanServiceWrapper scanServiceWrapper;

+

+        /// <summary>

+        /// Initializes a new instance of the <see cref="CancelScanCommand"/> class.

+        /// </summary>

+        /// <param name="ssw">

+        /// The scan service wrapper.

+        /// </param>

+        public CancelScanCommand(IScanServiceWrapper ssw)

+        {

+            this.scanServiceWrapper = ssw;

+            this.scanServiceWrapper.ScanStared += this.ScanServiceWrapperScanStared;

+            this.scanServiceWrapper.ScanCompleted += this.ScanServiceWrapperScanCompleted;

+        }

+

+        /// <summary>

+        /// The scan service Scan Completed Event Handler.

+        /// Fires CanExecuteChanged

+        /// </summary>

+        /// <param name="sender">

+        /// The sender.

+        /// </param>

+        /// <param name="e">

+        /// The ScanCompletedEventArgs.

+        /// </param>

+        private void ScanServiceWrapperScanCompleted(object sender, HandBrake.ApplicationServices.EventArgs.ScanCompletedEventArgs e)

+        {

+            Caliburn.Micro.Execute.OnUIThread(() => this.CanExecuteChanged(sender, EventArgs.Empty));    

+        }

+

+        /// <summary>

+        /// The scan service scan started event handler.

+        /// Fires CanExecuteChanged

+        /// </summary>

+        /// <param name="sender">

+        /// The sender.

+        /// </param>

+        /// <param name="e">

+        /// The EventArgs.

+        /// </param>

+        private void ScanServiceWrapperScanStared(object sender, EventArgs e)

+        {

+            Caliburn.Micro.Execute.OnUIThread(() => this.CanExecuteChanged(sender, EventArgs.Empty));    

+        }

+

+        #region Implementation of ICommand

+

+        /// <summary>

+        /// Defines the method to be called when the command is invoked.

+        /// </summary>

+        /// <param name="parameter">Data used by the command.  If the command does not require data to be passed, this object can be set to null.</param>

+        public void Execute(object parameter)

+        {

+            this.scanServiceWrapper.Stop();

+        }

+

+        /// <summary>

+        /// Defines the method that determines whether the command can execute in its current state.

+        /// </summary>

+        /// <returns>

+        /// true if this command can be executed; otherwise, false.

+        /// </returns>

+        /// <param name="parameter">Data used by the command.  If the command does not require data to be passed, this object can be set to null.</param>

+        public bool CanExecute(object parameter)

+        {

+            if (this.scanServiceWrapper != null)

+            {

+                return this.scanServiceWrapper.IsScanning;

+            }

+

+            return false;

+        }

+

+        /// <summary>

+        /// The can execute changed.

+        /// </summary>

+        public event EventHandler CanExecuteChanged;

+

+        #endregion

+    }

+}

diff --git a/win/CS/HandBrakeWPF/HandBrakeWPF.csproj b/win/CS/HandBrakeWPF/HandBrakeWPF.csproj
index bae0eff7a..3597bb029 100644
--- a/win/CS/HandBrakeWPF/HandBrakeWPF.csproj
+++ b/win/CS/HandBrakeWPF/HandBrakeWPF.csproj
@@ -113,6 +113,7 @@
       <SubType>Designer</SubType>

     </ApplicationDefinition>

     <Compile Include="AttachedProperties\MenuItemExtensions.cs" />

+    <Compile Include="Commands\CancelScanCommand.cs" />

     <Compile Include="Commands\ProcessShortcutCommand.cs" />

     <Compile Include="Commands\SourceMenuCommand.cs" />

     <Compile Include="Controls\Loading.xaml.cs">

diff --git a/win/CS/HandBrakeWPF/ViewModels/MainViewModel.cs b/win/CS/HandBrakeWPF/ViewModels/MainViewModel.cs
index c2aef69ed..b68237883 100644
--- a/win/CS/HandBrakeWPF/ViewModels/MainViewModel.cs
+++ b/win/CS/HandBrakeWPF/ViewModels/MainViewModel.cs
@@ -219,6 +219,7 @@ namespace HandBrakeWPF.ViewModels
             this.queueProcessor.EncodeService.EncodeStatusChanged += this.EncodeStatusChanged;

 

             this.Presets = this.presetService.Presets;

+            this.CancelScanCommand = new CancelScanCommand(this.scanService);

         }

 

         #region View Model Properties

@@ -609,6 +610,11 @@ namespace HandBrakeWPF.ViewModels
            }

         }

 

+        /// <summary>

+        /// Gets or sets the cancel scan command.

+        /// </summary>

+        public CancelScanCommand CancelScanCommand { get; set; }

+

         #endregion

 

         #region Properties for Settings

diff --git a/win/CS/HandBrakeWPF/Views/MainView.xaml b/win/CS/HandBrakeWPF/Views/MainView.xaml
index 0ab5e87b9..ac4085146 100644
--- a/win/CS/HandBrakeWPF/Views/MainView.xaml
+++ b/win/CS/HandBrakeWPF/Views/MainView.xaml
@@ -95,7 +95,7 @@
                   VerticalAlignment="Top"

                   >

                 <MenuItem Header="File">

-                    <MenuItem Header="Cancel Scan" Micro:Message.Attach="[Event Click] = [Action CancelScan]" />

+                    <MenuItem Header="Cancel Scan" Command="{Binding CancelScanCommand}" />

                     <Separator />

                     <MenuItem Header="Exit" Micro:Message.Attach="[Event Click] = [Action ExitApplication]" />

                 </MenuItem>