class/System.Windows/System.Windows.Interop/Content.cs

   1 //
   2 // Content.cs
   3 //
   4 // Contact:
   5 //   Moonlight List (moonlight-list@lists.ximian.com)
   6 //
   7 // Copyright 2008 Novell, Inc.
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28
  29 using Mono;
  30 using System;
  31
  32 namespace System.Windows.Interop {
  33
  34         public sealed class Content {
  35
  36                 public Content ()
  37                 {
  38                 }
  39
  40                 public double ActualHeight {
  41                         get {
  42                                 if (PluginHost.Handle != IntPtr.Zero) {
  43                                         int n = NativeMethods.plugin_instance_get_actual_height (PluginHost.Handle);
  44                                         return n >= 0 ? n : 0;
  45                                 } else
  46                                         return 768;
  47                         }
  48                 }
  49
  50                 public double ActualWidth {
  51                         get {
  52                                 if (PluginHost.Handle != IntPtr.Zero) {
  53                                         int n = NativeMethods.plugin_instance_get_actual_width (PluginHost.Handle);
  54                                         return n >= 0 ? n : 0;
  55                                 } else
  56                                         return 1024;
  57                         }
  58                 }
  59
  60                 public bool IsFullScreen {
  61                         get {
  62                                 return NativeMethods.surface_get_full_screen (Deployment.Current.Surface.Native);
  63                         }
  64                         set {
  65                                 NativeMethods.surface_set_full_screen (Deployment.Current.Surface.Native, value);
  66                         }
  67                 }
  68
  69                 static EventHandlerList EventList = new EventHandlerList ();
  70
  71                 public event EventHandler FullScreenChanged {
  72                         add {
  73                                 RegisterEvent (EventIds.Surface_FullScreenChangeEvent, value, Events.CreateNullSenderEventHandlerDispatcher (value));
  74                         }
  75                         remove {
  76                                 UnregisterEvent (EventIds.Surface_FullScreenChangeEvent, value);
  77                         }
  78                 }
  79
  80                 public event EventHandler Resized {
  81                         add {
  82                                 RegisterEvent (EventIds.Surface_ResizeEvent, value, Events.CreateNullSenderEventHandlerDispatcher (value));
  83                         }
  84                         remove {
  85                                 UnregisterEvent (EventIds.Surface_ResizeEvent, value);
  86                         }
  87                 }
  88
  89                 private void RegisterEvent (int eventId, Delegate managedHandler, UnmanagedEventHandler nativeHandler)
  90                 {
  91                         if (managedHandler == null)
  92                                 return;
  93
  94                         int token = Events.AddHandler (Deployment.Current.Surface.Native, eventId, nativeHandler);
  95                         EventList.AddHandler (eventId, token, managedHandler, nativeHandler);
  96                 }
  97
  98                 private void UnregisterEvent (int eventId, Delegate managedHandler)
  99                 {
 100                         UnmanagedEventHandler nativeHandler = EventList.RemoveHandler (eventId, managedHandler);
 101
 102                         if (nativeHandler == null)
 103                                 return;
 104
 105                         Events.RemoveHandler (Deployment.Current.Surface.Native, eventId, nativeHandler);
 106                 }
 107         }
 108 }