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

, 14 Jan 2010 CPOL
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.Windows.Data;
using System.Windows.Interactivity;
using System.Windows.Markup;
using System.Linq;

namespace Wex.Lib.Interactions
{
    /// <summary>
    /// The base class for all Wex triggers 
    /// </summary>
    public abstract class WexTriggerAction : System.Windows.Interactivity.TriggerAction<FrameworkElement>
    {

        protected bool initialized = false;


        public WexTrigger TriggerContext { get; set; } 

       
        /// <summary>
        /// Does the internal initializations
        /// </summary>
        internal virtual void InternalInitialize()
        {

            if (Conditions != null)
            {
                Conditions.ToList().ForEach(c =>
                { c.TriggerContext = TriggerContext; c.AssociatedObject = this.AssociatedObject; c.InternalInitialize(); });
            }
                
            Initialize();
        }


        /// <summary>
        /// Invokes a trigger
        /// </summary>
        /// <param name="parameter"></param>
        protected override void Invoke(object parameter) { }
     

        /// <summary>
        /// Initialize
        /// </summary>
        protected virtual void Initialize() { }


        /// <summary>
        /// Conditional invoking for supporting switch case default style constructs
        /// </summary>
        /// <param name="parameter"></param>
        internal abstract void InvokeConditional(object parameter);



        /// <summary>
        /// A set of execution conditions
        /// </summary>
        public InvokingConditions Conditions
        {
            get { return (InvokingConditions)GetValue(ConditionsProperty); }
            set { SetValue(ConditionsProperty, value); }
        }

        // Using a DependencyProperty as the backing store for Conditions.  This enables animation, styling, binding, etc...
        public static readonly DependencyProperty ConditionsProperty =
            DependencyProperty.Register("Conditions", typeof(InvokingConditions), typeof(WexTriggerAction), new PropertyMetadata(null));
        


    }
}

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This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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Web01 | 2.8.160208.1 | Last Updated 14 Jan 2010
Article Copyright 2010 by Anoop Madhusudanan
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