コード例 #1
0
        void SetSecondaryCommandsToCloseWhenExecuted()
        {
            RevokeAndClear(m_secondaryButtonClickRevokerByElementMap);
            RevokeAndClear(m_secondaryToggleButtonCheckedRevokerByElementMap);
            RevokeAndClear(m_secondaryToggleButtonUncheckedRevokerByElementMap);

            RoutedEventHandler closeFlyoutFunc = delegate { Hide(); };

            for (int i = 0; i < SecondaryCommands.Count; i++)
            {
                var element      = SecondaryCommands[i];
                var button       = element as AppBarButton;
                var toggleButton = element as AppBarToggleButton;

                if (button != null)
                {
                    m_secondaryButtonClickRevokerByElementMap[element] = new RoutedEventHandlerRevoker(
                        button, ButtonBase.ClickEvent, closeFlyoutFunc);
                }
                else if (toggleButton != null)
                {
                    m_secondaryToggleButtonCheckedRevokerByElementMap[element] = new RoutedEventHandlerRevoker(
                        button, ToggleButton.CheckedEvent, closeFlyoutFunc);
                    m_secondaryToggleButtonUncheckedRevokerByElementMap[element] = new RoutedEventHandlerRevoker(
                        button, ToggleButton.UncheckedEvent, closeFlyoutFunc);
                }
            }
        }
コード例 #2
0
        public CommandBarFlyout()
        {
            PrimaryCommands   = new ObservableCollection <ICommandBarElement>();
            SecondaryCommands = new ObservableCollection <ICommandBarElement>();

            PrimaryCommands.CollectionChanged += (object sender, NotifyCollectionChangedEventArgs args) =>
            {
                if (m_commandBar != null)
                {
                    SharedHelpers.ForwardCollectionChange((ObservableCollection <ICommandBarElement>)sender, m_commandBar.PrimaryCommands, args);
                }
            };

            SecondaryCommands.CollectionChanged += (object sender, NotifyCollectionChangedEventArgs args) =>
            {
                var commandBar = m_commandBar;
                if (commandBar != null)
                {
                    var source = (ObservableCollection <ICommandBarElement>)sender;
                    SharedHelpers.ForwardCollectionChange(source, commandBar.SecondaryCommands, args);

                    // We want to ensure that any interaction with secondary items causes the CommandBarFlyout
                    // to close, so we'll attach a Click handler to any buttons and Checked/Unchecked handlers
                    // to any toggle buttons that we get and close the flyout when they're invoked.
                    // The only exception is buttons with flyouts - in that case, clicking on the button
                    // will just open the flyout rather than executing an action, so we don't want that to
                    // do anything.
                    RoutedEventHandler closeFlyoutFunc = delegate { Hide(); };

                    // TODO
                    switch (args.Action)
                    {
                    case NotifyCollectionChangedAction.Replace:
                    {
                        var element      = (ICommandBarElement)args.NewItems[0];
                        var oldElement   = (ICommandBarElement)args.OldItems[0];
                        var button       = element as AppBarButton;
                        var toggleButton = element as AppBarToggleButton;

                        RevokeAndRemove(m_secondaryButtonClickRevokerByElementMap, oldElement);
                        RevokeAndRemove(m_secondaryToggleButtonCheckedRevokerByElementMap, oldElement);
                        RevokeAndRemove(m_secondaryToggleButtonUncheckedRevokerByElementMap, oldElement);

                        if (button != null && button.Flyout == null)
                        {
                            m_secondaryButtonClickRevokerByElementMap[element] = new RoutedEventHandlerRevoker(
                                button, ButtonBase.ClickEvent, closeFlyoutFunc);
                            RevokeAndRemove(m_secondaryToggleButtonCheckedRevokerByElementMap, element);
                            RevokeAndRemove(m_secondaryToggleButtonUncheckedRevokerByElementMap, element);
                        }
                        else if (toggleButton != null)
                        {
                            RevokeAndRemove(m_secondaryButtonClickRevokerByElementMap, element);
                            m_secondaryToggleButtonCheckedRevokerByElementMap[element] = new RoutedEventHandlerRevoker(
                                button, ToggleButton.CheckedEvent, closeFlyoutFunc);
                            m_secondaryToggleButtonUncheckedRevokerByElementMap[element] = new RoutedEventHandlerRevoker(
                                button, ToggleButton.UncheckedEvent, closeFlyoutFunc);
                        }
                        else
                        {
                            RevokeAndRemove(m_secondaryButtonClickRevokerByElementMap, element);
                            RevokeAndRemove(m_secondaryToggleButtonCheckedRevokerByElementMap, element);
                            RevokeAndRemove(m_secondaryToggleButtonUncheckedRevokerByElementMap, element);
                        }
                        break;
                    }

                    case NotifyCollectionChangedAction.Add:
                    {
                        var element      = (ICommandBarElement)args.NewItems[0];
                        var button       = element as AppBarButton;
                        var toggleButton = element as AppBarToggleButton;

                        if (button != null && button.Flyout == null)
                        {
                            m_secondaryButtonClickRevokerByElementMap[element] = new RoutedEventHandlerRevoker(
                                button, ButtonBase.ClickEvent, closeFlyoutFunc);
                        }
                        else if (toggleButton != null)
                        {
                            m_secondaryToggleButtonCheckedRevokerByElementMap[element] = new RoutedEventHandlerRevoker(
                                button, ToggleButton.CheckedEvent, closeFlyoutFunc);
                            m_secondaryToggleButtonUncheckedRevokerByElementMap[element] = new RoutedEventHandlerRevoker(
                                button, ToggleButton.UncheckedEvent, closeFlyoutFunc);
                        }
                        break;
                    }

                    case NotifyCollectionChangedAction.Remove:
                    {
                        var element = (ICommandBarElement)args.OldItems[0];
                        RevokeAndRemove(m_secondaryButtonClickRevokerByElementMap, element);
                        RevokeAndRemove(m_secondaryToggleButtonCheckedRevokerByElementMap, element);
                        RevokeAndRemove(m_secondaryToggleButtonUncheckedRevokerByElementMap, element);
                        break;
                    }

                    case NotifyCollectionChangedAction.Move:
                        break;

                    case NotifyCollectionChangedAction.Reset:
                        SetSecondaryCommandsToCloseWhenExecuted();
                        break;

                    default:
                        Debug.Assert(false);
                        break;
                    }
                }
            };

            Opening += delegate
            {
                AreOpenCloseAnimationsEnabled = true;

                if (m_commandBar.HasOpenAnimation())
                {
                    InternalPopup.SuppressFadeAnimation = true;
                }
                else
                {
                    InternalPopup.SuppressFadeAnimation = false;
                }

                if (ShowMode == FlyoutShowMode.Standard)
                {
                    m_commandBar.IsOpen = true;
                }
            };

            Opened += delegate
            {
                if (m_commandBar != null)
                {
                    if (m_commandBar.HasOpenAnimation())
                    {
                        m_commandBar.PlayOpenAnimation();
                    }
                    else
                    {
                        AreOpenCloseAnimationsEnabled = false;
                    }
                }
            };

            Closing += delegate
            {
                var commandBar = m_commandBar;
                if (commandBar != null)
                {
                    if (!m_isClosingAfterCloseAnimation && commandBar.HasCloseAnimation())
                    {
                        //args.Cancel(true);

                        commandBar.PlayCloseAnimation(() =>
                        {
                            m_isClosingAfterCloseAnimation = true;
                            Hide();
                            m_isClosingAfterCloseAnimation = false;
                        });
                        commandBar.IsOpen = false;
                    }

                    //CommandBarFlyoutCommandBar.Closed will be called when
                    //clicking the more (...) button, we clear the translations
                    //here
                    commandBar.ClearShadow();
                }
            };

            Closed += delegate
            {
                if (m_commandBar != null)
                {
                    if (m_commandBar.IsOpen)
                    {
                        m_commandBar.IsOpen = false;
                    }
                }
            };
        }