浏览器信息

  1 using System;
  2 using System.Net;
  3 using System.Windows;
  4 using System.Windows.Browser;
  5 using System.Windows.Controls;
  6 using System.Windows.Documents;
  7 using System.Windows.Ink;
  8 using System.Windows.Input;
  9 using System.Windows.Media;
 10 using System.Windows.Media.Animation;
 11 using System.Windows.Shapes;
 12 
 13 namespace TWSL.Common
 14 {
 15     /// <summary>  
 16     /// 浏览器屏幕信息类  
 17     /// </summary>  
 18     public class Browser
 19     {
 20         /// <summary>     
 21         /// During static instantiation, only the Netscape flag is checked     
 22         /// </summary>     
 23         static Browser()
 24         {
 25             _isNavigator = HtmlPage.BrowserInformation.Name.Contains("Netscape");
 26         }
 27 
 28         /// <summary>     
 29         /// Flag indicating Navigator/Firefox/Safari or Internet Explorer     
 30         /// </summary>     
 31         private static bool _isNavigator;
 32 
 33         /// <summary>     
 34         /// Provides quick access to the window.screen ScriptObject     
 35         /// </summary>     
 36         private static ScriptObject Screen
 37         {
 38             get
 39             {
 40                 ScriptObject screen = (ScriptObject)HtmlPage.Window.GetProperty("screen");
 41 
 42                 if (screen == null)
 43                 {
 44                     throw new InvalidOperationException();
 45                 }
 46 
 47                 return screen;
 48             }
 49         }
 50 
 51         /// <summary>     
 52         /// Gets the window object's client width     
 53         /// </summary>     
 54         public static double ClientWidth
 55         {
 56             get
 57             {
 58                 return _isNavigator ? (double)HtmlPage.Window.GetProperty("innerWidth")
 59                     : (double)HtmlPage.Document.Body.GetProperty("clientWidth");
 60             }
 61 
 62         }
 63 
 64         /// <summary>     
 65         /// Gets the window object's client height     
 66         /// </summary>     
 67         public static double ClientHeight
 68         {
 69             get
 70             {
 71                 return _isNavigator ? (double)HtmlPage.Window.GetProperty("innerHeight")
 72                     : (double)HtmlPage.Document.Body.GetProperty("clientHeight");
 73             }
 74         }
 75 
 76         /// <summary>     
 77         /// Gets the current horizontal scrolling offset     
 78         /// </summary>     
 79         public static double ScrollLeft
 80         {
 81             get
 82             {
 83                 return _isNavigator ? (double)HtmlPage.Window.GetProperty("pageXOffset")
 84                     : (double)HtmlPage.Document.Body.GetProperty("scrollLeft");
 85             }
 86         }
 87 
 88         /// <summary>     
 89         /// Gets the current vertical scrolling offset     
 90         /// </summary>     
 91         public static double ScrollTop
 92         {
 93             get
 94             {
 95                 return _isNavigator ? (double)HtmlPage.Window.GetProperty("pageYOffset")
 96                     : (double)HtmlPage.Document.Body.GetProperty("scrollHeight");
 97             }
 98         }
 99 
100         /// <summary>     
101         /// Gets the width of the entire display     
102         /// </summary>     
103         public static double ScreenWidth
104         {
105             get
106             {
107                 return (double)Screen.GetProperty("width");
108             }
109         }
110 
111         /// <summary>     
112         /// Gets the height of the entire display     
113         /// </summary>     
114         public static double ScreenHeight
115         {
116             get
117             {
118                 return (double)Screen.GetProperty("height");
119             }
120         }
121 
122         /// <summary>     
123         /// Gets the width of the available screen real estate, excluding the dock     
124         /// or task bar     
125         /// </summary>     
126         public static double AvailableScreenWidth
127         {
128             get
129             {
130                 return (double)Screen.GetProperty("availWidth");
131             }
132         }
133 
134         /// <summary>     
135         /// Gets the height of the available screen real estate, excluding the dock     
136         /// or task bar     
137         /// </summary>     
138         public static double AvailableScreenHeight
139         {
140             get
141             {
142                 return (double)Screen.GetProperty("availHeight");
143             }
144         }
145 
146         /// <summary>     
147         /// Gets the absolute left pixel position of the window in display coordinates     
148         /// </summary>     
149         public static double ScreenPositionLeft
150         {
151             get
152             {
153                 return _isNavigator ? (double)HtmlPage.Window.GetProperty("screenX")
154                     : (double)HtmlPage.Window.GetProperty("screenLeft");
155             }
156         }
157 
158         /// <summary>     
159         /// Gets the absolute top pixel position of the window in display coordinates     
160         /// </summary>     
161         public static double ScreenPositionTop
162         {
163             get
164             {
165                 return _isNavigator ? (double)HtmlPage.Window.GetProperty("screenY")
166                     : (double)HtmlPage.Window.GetProperty("screenTop");
167             }
168         }
169 
170     }
171 }

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