355 lines
12 KiB
C#
355 lines
12 KiB
C#
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/*
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* MainWindow.xaml.cs - Better-Seewo 安装向导主窗口逻辑
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* 负责安装步骤管理（Welcome -> Install -> Complete）、页面导航动画、按钮逻辑和关闭确认
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* 作者：雾启工作室
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*/
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using System;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Input;
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using System.Windows.Media;
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using System.Windows.Media.Animation;
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namespace Better_Seewo.Installer
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{
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/// <summary>
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/// MainWindow 的交互逻辑 - Fluent Design 风格安装向导主窗口
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/// </summary>
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public partial class MainWindow : Window
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{
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/// <summary>
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/// 页面切换动画时长（毫秒）
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/// </summary>
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private const int PageTransitionDuration = 300;
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/// <summary>
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/// 进度指示器动画时长（毫秒）
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/// </summary>
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private const int DotAnimationDuration = 300;
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/// <summary>
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/// 当前安装步骤索引（0=欢迎页, 1=安装页, 2=完成页）
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/// </summary>
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private int _currentStep = 0;
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/// <summary>
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/// 构造函数，初始化窗口组件
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/// </summary>
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public MainWindow()
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{
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InitializeComponent();
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// 为所有按钮初始化 RenderTransform（用于悬停缩放动画）
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BtnNext.RenderTransform = new ScaleTransform(1.0, 1.0);
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BtnInstall.RenderTransform = new ScaleTransform(1.0, 1.0);
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BtnFinish.RenderTransform = new ScaleTransform(1.0, 1.0);
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BtnBack.RenderTransform = new ScaleTransform(1.0, 1.0);
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}
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/// <summary>
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/// 窗口加载完成事件处理 - 导航到默认欢迎页
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/// </summary>
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private void Window_Loaded(object sender, RoutedEventArgs e)
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{
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// 导航到欢迎页
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NavigateToPage(new Pages.WelcomePage());
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// 设置按钮状态
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UpdateButtonStates();
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}
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#region ===== 自定义标题栏拖动 =====
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/// <summary>
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/// 标题栏鼠标左键按下 - 实现窗口拖动
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/// </summary>
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private void TitleBar_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
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{
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// 如果点击的是按钮区域则不触发拖动
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if (e.Source is Button) return;
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// 调用 DragMove 实现窗口拖动
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if (e.LeftButton == MouseButtonState.Pressed)
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{
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DragMove();
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}
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}
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#endregion
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#region ===== 窗口关闭 =====
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/// <summary>
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/// 关闭按钮点击 - 安装进行中不允许关闭
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/// </summary>
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private void BtnClose_Click(object sender, RoutedEventArgs e)
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{
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// 安装进行中时禁止关闭
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if (App.IsInstalling)
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{
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MessageBox.Show(
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"安装正在进行中，请等待安装完成后再关闭。",
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"Better-Seewo 安装程序",
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MessageBoxButton.OK,
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MessageBoxImage.Information
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);
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return;
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}
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// 安装已完成或未开始时，确认关闭
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if (App.IsInstallCompleted)
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{
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Application.Current.Shutdown();
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return;
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}
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// 未完成安装时二次确认
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var result = MessageBox.Show(
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"安装尚未完成，确定要退出安装程序吗？",
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"Better-Seewo 安装程序",
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MessageBoxButton.YesNo,
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MessageBoxImage.Question
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);
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if (result == MessageBoxResult.Yes)
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{
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Application.Current.Shutdown();
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}
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}
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#endregion
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#region ===== 按钮事件处理 =====
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/// <summary>
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/// 下一步按钮点击 - 从欢迎页跳转到安装页
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/// </summary>
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private void BtnNext_Click(object sender, RoutedEventArgs e)
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{
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if (_currentStep == 0)
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{
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// 从欢迎页进入安装页
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_currentStep = 1;
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NavigateToPage(new Pages.InstallPage());
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UpdateButtonStates();
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UpdateProgressDots();
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}
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}
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/// <summary>
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/// 安装按钮点击 - 开始执行安装
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/// </summary>
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private void BtnInstall_Click(object sender, RoutedEventArgs e)
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{
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if (ContentFrame.Content is Pages.InstallPage installPage)
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{
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// 标记安装开始
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App.IsInstalling = true;
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App.InstallStartTime = DateTime.Now;
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// 禁用安装按钮，显示返回按钮不可用
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BtnInstall.IsEnabled = false;
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BtnInstall.Content = "正在安装...";
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BtnBack.IsEnabled = false;
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// 启动安装过程
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installPage.StartInstallation();
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}
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}
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/// <summary>
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/// 返回按钮点击 - 返回上一步
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/// </summary>
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private void BtnBack_Click(object sender, RoutedEventArgs e)
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{
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if (_currentStep == 1)
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{
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// 从安装页返回欢迎页
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_currentStep = 0;
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NavigateToPage(new Pages.WelcomePage());
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UpdateButtonStates();
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UpdateProgressDots();
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}
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}
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/// <summary>
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/// 完成按钮点击 - 关闭安装程序
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/// </summary>
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private void BtnFinish_Click(object sender, RoutedEventArgs e)
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{
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Application.Current.Shutdown();
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}
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#endregion
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#region ===== 页面导航 =====
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/// <summary>
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/// 导航到指定页面，带淡出旧页面 -> 新页面从右侧滑入的动画效果
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/// </summary>
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/// <param name="page">要导航到的 Page 实例</param>
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private void NavigateToPage(Page page)
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{
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// 步骤1：淡出当前页面
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var fadeOutAnimation = new DoubleAnimation
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{
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From = 1.0,
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To = 0.0,
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Duration = TimeSpan.FromMilliseconds(PageTransitionDuration / 2),
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EasingFunction = new CubicEase { EasingMode = EasingMode.EaseIn }
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};
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fadeOutAnimation.Completed += (s, e) =>
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{
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// 步骤2：切换到新页面
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ContentFrame.Navigate(page);
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// 步骤3：新页面从右侧滑入 + 淡入
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var translateAnimation = new DoubleAnimation
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{
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From = 30.0,
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To = 0.0,
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Duration = TimeSpan.FromMilliseconds(PageTransitionDuration / 2),
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EasingFunction = new CubicEase { EasingMode = EasingMode.EaseOut }
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};
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var fadeInAnimation = new DoubleAnimation
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{
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From = 0.0,
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To = 1.0,
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Duration = TimeSpan.FromMilliseconds(PageTransitionDuration / 2),
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EasingFunction = new CubicEase { EasingMode = EasingMode.EaseOut }
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};
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// 应用水平偏移动画
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ContentFrame.BeginAnimation(
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FrameworkElement.RenderTransformOriginProperty, null);
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var translateTransform = new TranslateTransform(30, 0);
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ContentFrame.RenderTransform = translateTransform;
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translateTransform.BeginAnimation(TranslateTransform.XProperty, translateAnimation);
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// 应用淡入动画
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ContentFrame.BeginAnimation(OpacityProperty, fadeInAnimation);
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};
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// 应用淡出动画到 Frame
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ContentFrame.BeginAnimation(OpacityProperty, fadeOutAnimation);
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}
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/// <summary>
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/// 根据当前步骤更新按钮的可见性和状态
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/// </summary>
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private void UpdateButtonStates()
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{
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switch (_currentStep)
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{
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case 0: // 欢迎页
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BtnBack.Visibility = Visibility.Collapsed;
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BtnNext.Visibility = Visibility.Visible;
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BtnInstall.Visibility = Visibility.Collapsed;
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BtnFinish.Visibility = Visibility.Collapsed;
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BtnNext.IsEnabled = true;
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BtnNext.Content = "下一步 \uE74E;";
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break;
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case 1: // 安装页
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BtnBack.Visibility = Visibility.Visible;
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BtnBack.IsEnabled = true;
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BtnNext.Visibility = Visibility.Collapsed;
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BtnInstall.Visibility = Visibility.Visible;
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BtnInstall.IsEnabled = true;
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BtnInstall.Content = "开始安装 \uE74E;";
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BtnFinish.Visibility = Visibility.Collapsed;
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break;
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case 2: // 完成页
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BtnBack.Visibility = Visibility.Collapsed;
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BtnNext.Visibility = Visibility.Collapsed;
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BtnInstall.Visibility = Visibility.Collapsed;
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BtnFinish.Visibility = Visibility.Visible;
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break;
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}
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}
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/// <summary>
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/// 更新底部进度指示器圆点的颜色，高亮当前步骤
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/// </summary>
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private void UpdateProgressDots()
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{
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// 获取主题中的画刷资源
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var accentBrush = (Brush)FindResource("AccentBrush");
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var borderBrush = (Brush)FindResource("BorderBrush");
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// 更新三个圆点的颜色
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Dot1.Fill = _currentStep >= 0 ? accentBrush : borderBrush;
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Dot2.Fill = _currentStep >= 1 ? accentBrush : borderBrush;
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Dot3.Fill = _currentStep >= 2 ? accentBrush : borderBrush;
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// 为当前圆点播放缩放动画（突出当前步骤）
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var currentDot = _currentStep switch
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{
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0 => Dot1,
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1 => Dot2,
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2 => Dot3,
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_ => Dot1
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};
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AnimateDotScale(currentDot);
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}
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/// <summary>
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/// 为进度指示器圆点播放缩放脉冲动画
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/// </summary>
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private void AnimateDotScale(FrameworkElement dot)
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{
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// 放大到 1.5 倍再缩回 1.0 倍
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var scaleUpAnimation = new DoubleAnimation
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{
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From = 1.0,
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To = 1.5,
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Duration = TimeSpan.FromMilliseconds(DotAnimationDuration),
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EasingFunction = new CubicEase { EasingMode = EasingMode.EaseOut }
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};
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var scaleDownAnimation = new DoubleAnimation
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{
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From = 1.5,
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To = 1.0,
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Duration = TimeSpan.FromMilliseconds(DotAnimationDuration),
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EasingFunction = new CubicEase { EasingMode = EasingMode.EaseIn },
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BeginTime = TimeSpan.FromMilliseconds(DotAnimationDuration)
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};
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// 设置缩放变换中心点
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dot.RenderTransform = new ScaleTransform(1.0, 1.0, 4, 4);
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// 应用缩放动画
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dot.RenderTransform.BeginAnimation(ScaleTransform.ScaleXProperty, scaleUpAnimation);
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dot.RenderTransform.BeginAnimation(ScaleTransform.ScaleXProperty, scaleDownAnimation);
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dot.RenderTransform.BeginAnimation(ScaleTransform.ScaleYProperty, scaleUpAnimation);
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dot.RenderTransform.BeginAnimation(ScaleTransform.ScaleYProperty, scaleDownAnimation);
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}
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/// <summary>
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/// 安装完成后由 InstallPage 调用，切换到完成页
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/// </summary>
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public void OnInstallCompleted()
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{
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// 标记安装完成
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App.IsInstalling = false;
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App.IsInstallCompleted = true;
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// 切换到完成页
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Dispatcher.Invoke(() =>
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{
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_currentStep = 2;
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NavigateToPage(new Pages.CompletePage());
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UpdateButtonStates();
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UpdateProgressDots();
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});
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}
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#endregion
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}
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}
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