1. public sealed class PopupBox : FrameworkElement
   
2. {
   
3.     private static readonly double _screenWidth = Application.Current.Host.Content.ActualWidth;
   
4.     private static readonly double _screenHeight = Application.Current.Host.Content.ActualHeight;
   
5. 
   
6.     private Popup _popup;
   
7.     private PhoneApplicationFrame _frame;
   
8.     private PhoneApplicationPage _page;
   
9.     private Grid _grid;
   
10. 
    
11.     #region DependencyProperty UIElement Child
    
12. 
    
13.     public UIElement Child
    
14.     {
    
15.         get { return (UIElement)GetValue(ChildProperty); }
    
16.         set { SetValue(ChildProperty, value); }
    
17.     }
    
18. 
    
19.     // Using a DependencyProperty as the backing store for Child.  This enables animation, styling, binding, etc...
    
20.     public static readonly DependencyProperty ChildProperty =
    
21.         DependencyProperty.Register("Child", typeof(UIElement), typeof(PopupBox), new PropertyMetadata(null));
    
22. 
    
23.     #endregion DependencyProperty UIElement Child
    
24. 
    
25.     #region DependencyProperty bool IsFrameNavigatingHandled
    
26. 
    
27.     public bool IsFrameNavigatingHandled
    
28.     {
    
29.         get { return (bool)GetValue(IsFrameNavigatingHandledProperty); }
    
30.         set { SetValue(IsFrameNavigatingHandledProperty, value); }
    
31.     }
    
32. 
    
33.     // Using a DependencyProperty as the backing store for IsFrameNavigatingHandled.  This enables animation, styling, binding, etc...
    
34.     public static readonly DependencyProperty IsFrameNavigatingHandledProperty =
    
35.         DependencyProperty.Register("IsFrameNavigatingHandled", typeof(bool), typeof(PopupBox), new PropertyMetadata(false));
    
36. 
    
37.     #endregion DependencyProperty bool IsFrameNavigatingHandled
    
38. 
    
39.     #region DependencyProperty bool IsBackKeyHandled
    
40. 
    
41.     public bool IsBackKeyHandled
    
42.     {
    
43.         get { return (bool)GetValue(IsBackKeyHandledProperty); }
    
44.         set { SetValue(IsBackKeyHandledProperty, value); }
    
45.     }
    
46. 
    
47.     // Using a DependencyProperty as the backing store for IsBackKeyHandled.  This enables animation, styling, binding, etc...
    
48.     public static readonly DependencyProperty IsBackKeyHandledProperty =
    
49.         DependencyProperty.Register("IsBackKeyHandled", typeof(bool), typeof(PopupBox), new PropertyMetadata(true));
    
50. 
    
51.     #endregion DependencyProperty bool IsBackKeyHandled
    
52. 
    
53.     #region DependencyProperty SupportedOrientation SupportedOrientation
    
54. 
    
55.     public SupportedOrientation SupportedOrientation
    
56.     {
    
57.         get { return (SupportedOrientation)GetValue(SupportedOrientationProperty); }
    
58.         set { SetValue(SupportedOrientationProperty, value); }
    
59.     }
    
60. 
    
61.     // Using a DependencyProperty as the backing store for SupportedOrientation.  This enables animation, styling, binding, etc...
    
62.     public static readonly DependencyProperty SupportedOrientationProperty =
    
63.         DependencyProperty.Register("SupportedOrientation", typeof(SupportedOrientation), typeof(PopupBox), new PropertyMetadata(SupportedOrientation.Horizontal | SupportedOrientation.Vertical));
    
64. 
    
65.     #endregion DependencyProperty SupportedOrientation SupportedOrientation
    
66. 
    
67.     #region DependencyProperty bool IsOpen
    
68. 
    
69.     public bool IsOpen
    
70.     {
    
71.         get { return (bool)GetValue(IsOpenProperty); }
    
72.         set { SetValue(IsOpenProperty, value); }
    
73.     }
    
74. 
    
75.     // Using a DependencyProperty as the backing store for IsOpen.  This enables animation, styling, binding, etc...
    
76.     public static readonly DependencyProperty IsOpenProperty =
    
77.         DependencyProperty.Register("IsOpen", typeof(bool), typeof(PopupBox), new PropertyMetadata(false, OnIsOpenChanged));
    
78. 
    
79.     private static void OnIsOpenChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
    
80.     {
    
81.         if (e.NewValue == e.OldValue)
    
82.             return;
    
83.         if ((bool)e.NewValue)
    
84.             ((PopupBox)d).Show();
    
85.         else
    
86.             ((PopupBox)d).Close();
    
87.     }
    
88. 
    
89.     #endregion DependencyProperty bool IsOpen
    
90. 
    
91.     public bool IsCenter
    
92.     {
    
93.         get { return (bool)GetValue(IsCenterProperty); }
    
94.         set { SetValue(IsCenterProperty, value); }
    
95.     }
    
96. 
    
97.     // Using a DependencyProperty as the backing store for IsCenter.  This enables animation, styling, binding, etc...
    
98.     public static readonly DependencyProperty IsCenterProperty =
    
99.         DependencyProperty.Register("IsCenter", typeof(bool), typeof(PopupBox), new PropertyMetadata(false));
    
100. 
     
101.     public event EventHandler OnOpened;
     
102. 
     
103.     public event EventHandler OnClosed;
     
104. 
     
105.     public event EventHandler OnFrameNavigaging;
     
106. 
     
107.     public PopupBox()
     
108.     {
     
109.         _popup = new Popup();
     
110.         _grid = new Grid();
     
111.         _grid.Background = new SolidColorBrush(Color.FromArgb(127, 0, 0, 0));
     
112.     }
     
113. 
     
114.     /// <summary>
     
115.     /// Popup this Box.
     
116.     /// </summary>
     
117.     private void Show()
     
118.     {
     
119.         if (_popup.IsOpen)
     
120.         {
     
121.             return;
     
122.         }
     
123. 
     
124.         _popup.RenderTransform = GetTransform();
     
125.         // 在此只做了支持横屏的
     
126.         _grid.Width = _screenHeight;
     
127.         _grid.Height = _screenWidth;
     
128. 
     
129.         _grid.Children.Add(Child);
     
130.         _popup.Child = _grid;
     
131.         _popup.IsOpen = true;
     
132. 
     
133.         if (OnOpened != null)
     
134.         {
     
135.             OnOpened(this, EventArgs.Empty);
     
136.         }
     
137. 
     
138.         _frame = Application.Current.RootVisual as PhoneApplicationFrame;
     
139.         if (_frame != null)
     
140.         {
     
141.             _page = _frame.Content as PhoneApplicationPage;
     
142.             if (_page != null)
     
143.             {
     
144.                 _page.OrientationChanged += OnOrientationChanged;
     
145.                 _page.BackKeyPress += OnBackKeyPress;
     
146.             }
     
147.             _frame.Navigating += FrameNavigating;
     
148.         }
     
149.     }
     
150. 
     
151.     private void FrameNavigating(object sender, System.Windows.Navigation.NavigatingCancelEventArgs e)
     
152.     {
     
153.         if (IsFrameNavigatingHandled)
     
154.         {
     
155.             if (OnFrameNavigaging != null)
     
156.             {
     
157.                 OnFrameNavigaging(this, e);
     
158.             }
     
159.         }
     
160.     }
     
161. 
     
162.     /// <summary>
     
163.     /// Cancel the popup on backkey pressed.
     
164.     /// </summary>
     
165.     /// <param name="sender"></param>
     
166.     /// <param name="e"></param>
     
167.     private void OnBackKeyPress(object sender, System.ComponentModel.CancelEventArgs e)
     
168.     {
     
169.         if (!IsBackKeyHandled)
     
170.             return;
     
171. 
     
172.         e.Cancel = true;
     
173.         Close();
     
174.     }
     
175. 
     
176.     private void Close()
     
177.     {
     
178.         _popup.IsOpen = false;
     
179.         if (OnClosed != null)
     
180.         {
     
181.             OnClosed(this, EventArgs.Empty);
     
182.         }
     
183.         _page.BackKeyPress -= OnBackKeyPress;
     
184.         _page.OrientationChanged -= OnOrientationChanged;
     
185.         _frame.Navigating -= FrameNavigating;
     
186.     }
     
187. 
     
188.     /// <summary>
     
189.     /// Change the popup's orientation when page's orientation change.
     
190.     /// </summary>
     
191.     /// <param name="sender"></param>
     
192.     /// <param name="e"></param>
     
193.     private void OnOrientationChanged(object sender, OrientationChangedEventArgs e)
     
194.     {
     
195.         if (_popup != null)
     
196.         {
     
197.             Transform transform = GetTransform();
     
198.             _popup.RenderTransform = transform;
     
199.         }
     
200.     }
     
201. 
     
202.     public static Transform GetTransform()
     
203.     {
     
204.         PageOrientation orientation = GetPageOrientation();
     
205. 
     
206.         switch (orientation)
     
207.         {
     
208.             case PageOrientation.Landscape:
     
209.             case PageOrientation.LandscapeLeft:
     
210.                 return new CompositeTransform()
     
211.                 {
     
212.                     Rotation = 90,
     
213.                     TranslateX = _screenWidth
     
214.                 };
     
215.             case PageOrientation.LandscapeRight:
     
216.                 return new CompositeTransform()
     
217.                 {
     
218.                     Rotation = -90,
     
219.                     TranslateY = _screenHeight
     
220.                 };
     
221.             default:
     
222.                 return new CompositeTransform()
     
223.                 {
     
224.                     Rotation = 90,
     
225.                     TranslateX = _screenWidth
     
226.                 };
     
227.         }
     
228.     }
     
229. 
     
230.     private static PageOrientation GetPageOrientation()
     
231.     {
     
232.         PhoneApplicationFrame frame = Application.Current.RootVisual as PhoneApplicationFrame;
     
233.         if (frame != null)
     
234.         {
     
235.             PhoneApplicationPage page = frame.Content as PhoneApplicationPage;
     
236. 
     
237.             if (page != null)
     
238.             {
     
239.                 return page.Orientation;
     
240.             }
     
241.         }
     
242.         return PageOrientation.None;
     
243.     }
     
244. }

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1. public sealed class PopupBox : FrameworkElement
   
2. {
   
3.     private static readonly double _screenWidth = Application.Current.Host.Content.ActualWidth;
   
4.     private static readonly double _screenHeight = Application.Current.Host.Content.ActualHeight;
   
5. 
   
6.     private Popup _popup;
   
7.     private PhoneApplicationFrame _frame;
   
8.     private PhoneApplicationPage _page;
   
9.     private Grid _grid;
   
10. 
    
11.     #region DependencyProperty UIElement Child
    
12. 
    
13.     public UIElement Child
    
14.     {
    
15.         get { return (UIElement)GetValue(ChildProperty); }
    
16.         set { SetValue(ChildProperty, value); }
    
17.     }
    
18. 
    
19.     // Using a DependencyProperty as the backing store for Child.  This enables animation, styling, binding, etc...
    
20.     public static readonly DependencyProperty ChildProperty =
    
21.         DependencyProperty.Register("Child", typeof(UIElement), typeof(PopupBox), new PropertyMetadata(null));
    
22. 
    
23.     #endregion DependencyProperty UIElement Child
    
24. 
    
25.     #region DependencyProperty bool IsFrameNavigatingHandled
    
26. 
    
27.     public bool IsFrameNavigatingHandled
    
28.     {
    
29.         get { return (bool)GetValue(IsFrameNavigatingHandledProperty); }
    
30.         set { SetValue(IsFrameNavigatingHandledProperty, value); }
    
31.     }
    
32. 
    
33.     // Using a DependencyProperty as the backing store for IsFrameNavigatingHandled.  This enables animation, styling, binding, etc...
    
34.     public static readonly DependencyProperty IsFrameNavigatingHandledProperty =
    
35.         DependencyProperty.Register("IsFrameNavigatingHandled", typeof(bool), typeof(PopupBox), new PropertyMetadata(false));
    
36. 
    
37.     #endregion DependencyProperty bool IsFrameNavigatingHandled
    
38. 
    
39.     #region DependencyProperty bool IsBackKeyHandled
    
40. 
    
41.     public bool IsBackKeyHandled
    
42.     {
    
43.         get { return (bool)GetValue(IsBackKeyHandledProperty); }
    
44.         set { SetValue(IsBackKeyHandledProperty, value); }
    
45.     }
    
46. 
    
47.     // Using a DependencyProperty as the backing store for IsBackKeyHandled.  This enables animation, styling, binding, etc...
    
48.     public static readonly DependencyProperty IsBackKeyHandledProperty =
    
49.         DependencyProperty.Register("IsBackKeyHandled", typeof(bool), typeof(PopupBox), new PropertyMetadata(true));
    
50. 
    
51.     #endregion DependencyProperty bool IsBackKeyHandled
    
52. 
    
53.     #region DependencyProperty SupportedOrientation SupportedOrientation
    
54. 
    
55.     public SupportedOrientation SupportedOrientation
    
56.     {
    
57.         get { return (SupportedOrientation)GetValue(SupportedOrientationProperty); }
    
58.         set { SetValue(SupportedOrientationProperty, value); }
    
59.     }
    
60. 
    
61.     // Using a DependencyProperty as the backing store for SupportedOrientation.  This enables animation, styling, binding, etc...
    
62.     public static readonly DependencyProperty SupportedOrientationProperty =
    
63.         DependencyProperty.Register("SupportedOrientation", typeof(SupportedOrientation), typeof(PopupBox), new PropertyMetadata(SupportedOrientation.Horizontal | SupportedOrientation.Vertical));
    
64. 
    
65.     #endregion DependencyProperty SupportedOrientation SupportedOrientation
    
66. 
    
67.     #region DependencyProperty bool IsOpen
    
68. 
    
69.     public bool IsOpen
    
70.     {
    
71.         get { return (bool)GetValue(IsOpenProperty); }
    
72.         set { SetValue(IsOpenProperty, value); }
    
73.     }
    
74. 
    
75.     // Using a DependencyProperty as the backing store for IsOpen.  This enables animation, styling, binding, etc...
    
76.     public static readonly DependencyProperty IsOpenProperty =
    
77.         DependencyProperty.Register("IsOpen", typeof(bool), typeof(PopupBox), new PropertyMetadata(false, OnIsOpenChanged));
    
78. 
    
79.     private static void OnIsOpenChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
    
80.     {
    
81.         if (e.NewValue == e.OldValue)
    
82.             return;
    
83.         if ((bool)e.NewValue)
    
84.             ((PopupBox)d).Show();
    
85.         else
    
86.             ((PopupBox)d).Close();
    
87.     }
    
88. 
    
89.     #endregion DependencyProperty bool IsOpen
    
90. 
    
91.     public bool IsCenter
    
92.     {
    
93.         get { return (bool)GetValue(IsCenterProperty); }
    
94.         set { SetValue(IsCenterProperty, value); }
    
95.     }
    
96. 
    
97.     // Using a DependencyProperty as the backing store for IsCenter.  This enables animation, styling, binding, etc...
    
98.     public static readonly DependencyProperty IsCenterProperty =
    
99.         DependencyProperty.Register("IsCenter", typeof(bool), typeof(PopupBox), new PropertyMetadata(false));
    
100. 
     
101.     public event EventHandler OnOpened;
     
102. 
     
103.     public event EventHandler OnClosed;
     
104. 
     
105.     public event EventHandler OnFrameNavigaging;
     
106. 
     
107.     public PopupBox()
     
108.     {
     
109.         _popup = new Popup();
     
110.         _grid = new Grid();
     
111.         _grid.Background = new SolidColorBrush(Color.FromArgb(127, 0, 0, 0));
     
112.     }
     
113. 
     
114.     /// <summary>
     
115.     /// Popup this Box.
     
116.     /// </summary>
     
117.     private void Show()
     
118.     {
     
119.         if (_popup.IsOpen)
     
120.         {
     
121.             return;
     
122.         }
     
123. 
     
124.         _popup.RenderTransform = GetTransform();
     
125.         // 在此只做了支持横屏的
     
126.         _grid.Width = _screenHeight;
     
127.         _grid.Height = _screenWidth;
     
128. 
     
129.         _grid.Children.Add(Child);
     
130.         _popup.Child = _grid;
     
131.         _popup.IsOpen = true;
     
132. 
     
133.         if (OnOpened != null)
     
134.         {
     
135.             OnOpened(this, EventArgs.Empty);
     
136.         }
     
137. 
     
138.         _frame = Application.Current.RootVisual as PhoneApplicationFrame;
     
139.         if (_frame != null)
     
140.         {
     
141.             _page = _frame.Content as PhoneApplicationPage;
     
142.             if (_page != null)
     
143.             {
     
144.                 _page.OrientationChanged += OnOrientationChanged;
     
145.                 _page.BackKeyPress += OnBackKeyPress;
     
146.             }
     
147.             _frame.Navigating += FrameNavigating;
     
148.         }
     
149.     }
     
150. 
     
151.     private void FrameNavigating(object sender, System.Windows.Navigation.NavigatingCancelEventArgs e)
     
152.     {
     
153.         if (IsFrameNavigatingHandled)
     
154.         {
     
155.             if (OnFrameNavigaging != null)
     
156.             {
     
157.                 OnFrameNavigaging(this, e);
     
158.             }
     
159.         }
     
160.     }
     
161. 
     
162.     /// <summary>
     
163.     /// Cancel the popup on backkey pressed.
     
164.     /// </summary>
     
165.     /// <param name="sender"></param>
     
166.     /// <param name="e"></param>
     
167.     private void OnBackKeyPress(object sender, System.ComponentModel.CancelEventArgs e)
     
168.     {
     
169.         if (!IsBackKeyHandled)
     
170.             return;
     
171. 
     
172.         e.Cancel = true;
     
173.         Close();
     
174.     }
     
175. 
     
176.     private void Close()
     
177.     {
     
178.         _popup.IsOpen = false;
     
179.         if (OnClosed != null)
     
180.         {
     
181.             OnClosed(this, EventArgs.Empty);
     
182.         }
     
183.         _page.BackKeyPress -= OnBackKeyPress;
     
184.         _page.OrientationChanged -= OnOrientationChanged;
     
185.         _frame.Navigating -= FrameNavigating;
     
186.     }
     
187. 
     
188.     /// <summary>
     
189.     /// Change the popup's orientation when page's orientation change.
     
190.     /// </summary>
     
191.     /// <param name="sender"></param>
     
192.     /// <param name="e"></param>
     
193.     private void OnOrientationChanged(object sender, OrientationChangedEventArgs e)
     
194.     {
     
195.         if (_popup != null)
     
196.         {
     
197.             Transform transform = GetTransform();
     
198.             _popup.RenderTransform = transform;
     
199.         }
     
200.     }
     
201. 
     
202.     public static Transform GetTransform()
     
203.     {
     
204.         PageOrientation orientation = GetPageOrientation();
     
205. 
     
206.         switch (orientation)
     
207.         {
     
208.             case PageOrientation.Landscape:
     
209.             case PageOrientation.LandscapeLeft:
     
210.                 return new CompositeTransform()
     
211.                 {
     
212.                     Rotation = 90,
     
213.                     TranslateX = _screenWidth
     
214.                 };
     
215.             case PageOrientation.LandscapeRight:
     
216.                 return new CompositeTransform()
     
217.                 {
     
218.                     Rotation = -90,
     
219.                     TranslateY = _screenHeight
     
220.                 };
     
221.             default:
     
222.                 return new CompositeTransform()
     
223.                 {
     
224.                     Rotation = 90,
     
225.                     TranslateX = _screenWidth
     
226.                 };
     
227.         }
     
228.     }
     
229. 
     
230.     private static PageOrientation GetPageOrientation()
     
231.     {
     
232.         PhoneApplicationFrame frame = Application.Current.RootVisual as PhoneApplicationFrame;
     
233.         if (frame != null)
     
234.         {
     
235.             PhoneApplicationPage page = frame.Content as PhoneApplicationPage;
     
236. 
     
237.             if (page != null)
     
238.             {
     
239.                 return page.Orientation;
     
240.             }
     
241.         }
     
242.         return PageOrientation.None;
     
243.     }
     
244. }

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