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WPF Extensibility Hacks or WEX - Includes EventTrigger, ReactiveTrigger, InvokeMethodAction, InvokeCommandAction etc.

, 14 Jan 2010
A set of extensibility hacks for WPF. A few interesting triggers and actions, including EventTrigger, ReactiveTrigger, InvokeMethodAction, and InvokeCommandAction. Also allows invoking Triggers and Actions based on Conditions.
Wex.zip
Assemblies
Microsoft.Expression.Interactions.dll
System.ComponentModel.Composition.dll
System.CoreEx.dll
System.Interactive.dll
System.Reactive.dll
System.Windows.Interactivity.dll
WexEventTrigger
ClassDiagram1.cd
Wex.csproj.user
bin
Debug
WexEventTrigger.dll
WexEventTrigger.vshost.exe
WexEventTrigger.vshost.exe.manifest
Composition
Lib
Properties
Settings.settings
Reactive
WexEventTrigger.Demo
bin
Debug
WexEventTrigger.Demo.vshost.exe
WexEventTrigger.Demo.vshost.exe.manifest
Commands
Extensions
Properties
Settings.settings
Views
Demos
using System;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.ComponentModel;
using Wex.Lib.Interactions;

namespace Wex.Lib.Interactions
{
    /// <summary>
    /// An action to start/stop/pause/resume a storyboard
    /// </summary>
    public class StoryBoardAction : WexTriggerAction
    {

        private StoryBoardActionEnum _storyBoardAction = StoryBoardActionEnum.Begin;

        /// <summary>
        /// Action to perform on this story board
        /// </summary>
        public StoryBoardActionEnum Action
        {
            get { return _storyBoardAction; }
            set { _storyBoardAction = value; }
        }

        private string _storyBoardName=string.Empty;

        /// <summary>
        /// The target story board name
        /// </summary>
        public string StoryBoardName
        {
            get { return _storyBoardName; }
            set { _storyBoardName = value; }
        }


        private string _storyBoardKey = string.Empty;

        /// <summary>
        /// The target story board name
        /// </summary>
        public string StoryBoardKey
        {
            get { return _storyBoardKey; }
            set { _storyBoardKey = value; }
        }



        /// <summary>
        /// Invoke the story board action
        /// </summary>
        /// <param name="parameter"></param>
        internal override void InvokeConditional(object parameter)
        {
            
            if (StoryBoardName != null && AssociatedObject is FrameworkElement)
            {
                var storyBoard = (AssociatedObject as FrameworkElement).FindName(StoryBoardName) as Storyboard;
                try
                {
                    if (storyBoard == null)
                        storyBoard = (AssociatedObject as FrameworkElement).FindResource(StoryBoardKey) as Storyboard;
                }
                catch { }

                if (storyBoard != null)
                {
                    switch (Action)
                    {
                        case StoryBoardActionEnum.Begin:
                            storyBoard.Begin(); break;
                        case StoryBoardActionEnum.Stop:
                            storyBoard.Stop(); break;
                        case StoryBoardActionEnum.Resume:
                            storyBoard.Resume(); break;
                        case StoryBoardActionEnum.Pause:
                            storyBoard.Pause(); break;
                        case StoryBoardActionEnum.ReverseOn:
                            storyBoard.AutoReverse = true;
                            break;
                        case StoryBoardActionEnum.ReverseOff:
                            storyBoard.AutoReverse = false;
                            break;
                    }
                }
            }
        }
    }

    /// <summary>
    /// Defines a story board action type
    /// </summary>
    public enum StoryBoardActionEnum 
    {
        Begin,
        Stop,
        Pause,
        Resume,
        ReverseOn,
        ReverseOff
    }
}

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Web01 | 2.8.140902.1 | Last Updated 14 Jan 2010
Article Copyright 2010 by Anoop Madhusudanan
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