PDFOffice_Windows_exe/PDF Office/CustomControl/ToastControl.xaml.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace PDF_Master.CustomControl
{
    /// <summary>
    /// 渐隐提示控件
    /// </summary>
    public partial class ToastControl : UserControl
    {
        /// <summary>
        /// 这种小型组件，主要为UI显示效果的，就不用VM来处理了
        /// </summary>
        public ToastControl()
        {
            InitializeComponent();
        }

        public CornerRadius CornerRadius
        {
            get { return (CornerRadius)GetValue(CornerRadiusProperty); }
            set { SetValue(CornerRadiusProperty, value); }
        }

        public static readonly DependencyProperty CornerRadiusProperty =
            DependencyProperty.Register("CornerRadius", typeof(CornerRadius), typeof(ToastControl), new PropertyMetadata(null));

        public new Brush Background
        {
            get { return (Brush)GetValue(BackgroundProperty); }
            set { SetValue(BackgroundProperty, value); }
        }

        public static new readonly DependencyProperty BackgroundProperty =
            DependencyProperty.Register("Background", typeof(Brush), typeof(ToastControl), new PropertyMetadata(Brushes.White));

        public string StringContent
        {
            get { return (string)GetValue(StringContentProperty); }
            set { SetValue(StringContentProperty, value); }
        }

        public static readonly DependencyProperty StringContentProperty =
            DependencyProperty.Register("StringContent", typeof(string), typeof(ToastControl), new PropertyMetadata(""));


        public Duration Duration
        {
            get { return (Duration)GetValue(DurationProperty); }
            set { SetValue(DurationProperty, value); }
        }

        public static readonly DependencyProperty DurationProperty =
            DependencyProperty.Register("Duration", typeof(Duration), typeof(ToastControl), new PropertyMetadata(new Duration(TimeSpan.FromSeconds(0))));


        public TimeSpan BeginTime
        {
            get { return (TimeSpan)GetValue(BeginTimeProperty); }
            set { SetValue(BeginTimeProperty, value); }
        }

        public static readonly DependencyProperty BeginTimeProperty =
            DependencyProperty.Register("BeginTime", typeof(TimeSpan), typeof(ToastControl), new PropertyMetadata(TimeSpan.FromSeconds(0)));



        private void DoubleAnimation_Completed(object sender, EventArgs e)
        {
            //缺少关闭逻辑导致没有及时关闭动画，显示看起来比较卡顿
            this.BeginAnimation(UserControl.OpacityProperty, null);

            this.Visibility = Visibility.Collapsed;
            this.Opacity = 1;
        }

        private void Toast_IsVisibleChanged(object sender, DependencyPropertyChangedEventArgs e)
        {
            if((bool)e.NewValue)
            {
                DoubleAnimation doubleAnimation = new DoubleAnimation();
                doubleAnimation.Completed += DoubleAnimation_Completed;
                doubleAnimation.From = 1;
                doubleAnimation.To = 0;
                doubleAnimation.BeginTime = BeginTime;
                doubleAnimation.Duration = Duration;
                this.BeginAnimation(UserControl.OpacityProperty, doubleAnimation);
            }
        }
    }
}