/// <summary>
/// <see cref="Microsoft.Phone.Controls.Pivot.SelectionChanged"/> イベントで追加の処理を実行します。
/// </summary>
/// <param name="sender">イベントを発生させた <see cref="System.Object"/>。</param>
/// <param name="e">
/// イベントのデータを格納する <see cref="System.Windows.Controls.SelectionChangedEventArgs"/>。
/// </param>
private void OnAssociatedObjectSelectionChanged(object sender, SelectionChangedEventArgs e)
{
var appPage = this.AssociatedObject.GetSelfAndAncestors().OfType <PhoneApplicationPage>().First();
if (appPage.ApplicationBar != null)
{
Enumerable.Concat(
appPage.ApplicationBar.Buttons.OfType <IApplicationBarMenuItem>(),
appPage.ApplicationBar.MenuItems.OfType <IApplicationBarMenuItem>())
.ForEach(menuItem => menuItem.Click -= this.OnApplicationBarMenuItemClick);
}
var pivotItem = (PivotItem)this.AssociatedObject.SelectedItem;
var bindings = PivotApplicationBar.GetCommandBindings(pivotItem);
appPage.ApplicationBar = PivotApplicationBar.GetApplicationBar(pivotItem);
if (appPage.ApplicationBar != null)
{
Enumerable.Concat(
appPage.ApplicationBar.Buttons.OfType <IApplicationBarMenuItem>(),
appPage.ApplicationBar.MenuItems.OfType <IApplicationBarMenuItem>())
.ForEach(menuItem => {
menuItem.Click += this.OnApplicationBarMenuItemClick;
var binding = bindings.FirstOrDefault(y => y.Text == menuItem.Text);
if (binding != null)
{
if (string.IsNullOrEmpty(binding.DisplayText) != true)
{
menuItem.Text = binding.DisplayText;
binding.Text = binding.DisplayText;
}
menuItem.IsEnabled = binding.Command.CanExecute(binding.CommandParameter);
}
});
}
}
/// <summary>
/// <see cref="Microsoft.Phone.Shell.ApplicationBarMenuItem.Click"/> イベントで追加の処理を実行します。
/// </summary>
/// <param name="sender">イベントを発生させた <see cref="System.Object"/>。</param>
/// <param name="e">イベントのデータを格納する <see cref="System.EventArgs"/>。</param>
private void OnApplicationBarMenuItemClick(object sender, EventArgs e)
{
var source = (IApplicationBarMenuItem)sender;
var pivotItem = (PivotItem)this.AssociatedObject.SelectedItem;
var bindings = PivotApplicationBar.GetCommandBindings(pivotItem);
if (bindings != null)
{
var binding = bindings.FirstOrDefault(x => x.Text == source.Text);
if (binding != null)
{
if (binding.Command != null &&
binding.Command.CanExecute(binding.CommandParameter) == true)
{
binding.Command.Execute(binding.CommandParameter);
}
}
}
}