class/System.Windows/Mono/NativeMethods.cs

   1 //
   2 // NativeMethods.cs
   3 //
   4 // Contact:
   5 //   Moonlight List (moonlight-list@lists.ximian.com)
   6 //
   7 // Copyright 2007 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 System;
  30 using System.Globalization;
  31 using System.Reflection;
  32 using System.Runtime.InteropServices;
  33 using System.Windows;
  34 using System.Windows.Markup;
  35
  36 namespace Mono {
  37
  38         internal delegate IntPtr DownloaderCreateStateFunc (IntPtr dl);
  39         internal delegate void   DownloaderDestroyStateFunc (IntPtr state);
  40         internal delegate void   DownloaderOpenFunc (IntPtr state, string verb, string uri, bool custom_header_support, bool disable_cache);
  41         internal delegate void   DownloaderSendFunc (IntPtr state);
  42         internal delegate void   DownloaderAbortFunc (IntPtr state);
  43         internal delegate void   DownloaderHeaderFunc (IntPtr state, string header, string value);
  44         internal delegate void   DownloaderBodyFunc (IntPtr state, IntPtr body, int length);
  45         internal delegate IntPtr DownloaderCreateWebRequestFunc (string method, string uri, IntPtr context);
  46         internal delegate void   DownloaderSetResponseHeaderCallbackFunc (IntPtr native, DownloaderResponseHeaderCallback callback, IntPtr context);
  47         internal delegate IntPtr DownloaderGetResponseFunc (IntPtr native);
  48
  49         internal delegate void DownloaderResponseHeaderCallback (IntPtr context, string header, string value);
  50
  51         internal delegate Size MeasureOverrideCallback (Size availableSize);
  52         internal delegate Size ArrangeOverrideCallback (Size finalSize);
  53         internal delegate void LoadedCallback (IntPtr fwe_ptr);
  54
  55         internal delegate void ApplyDefaultStyleCallback (IntPtr fwe_ptr, IntPtr type_info_ptr);
  56         internal delegate IntPtr GetDefaultTemplateCallback (IntPtr fwe_ptr);
  57         internal delegate void ApplyStyleCallback (IntPtr fwe_ptr, IntPtr style_ptr);
  58         internal delegate void ConvertKeyframeValueCallback (Mono.Kind kind, IntPtr property, IntPtr original, out Value converted);
  59         internal delegate ManagedStreamCallbacks GetResourceCallback (string resourceBase, string name);
  60
  61         // Used in databinding to interact with managed objects
  62         internal delegate Value GetValueCallback ();
  63         internal delegate void SetValueCallback (IntPtr value);
  64
  65         internal delegate IntPtr CreateCustomXamlElementCallback (string xmlns, string name);
  66         internal delegate void SetCustomXamlAttributeCallback (IntPtr target, string name, string value);
  67         internal delegate void XamlHookupEventCallback (IntPtr target, string name, string value);
  68         internal delegate void UnmanagedEventHandler (IntPtr sender, IntPtr calldata, IntPtr closure);
  69
  70         internal delegate void PlainEvent (IntPtr target);
  71
  72         internal delegate void HttpHeaderHandler (string name, string value);
  73         internal delegate void AsyncResponseAvailableHandler (IntPtr response, IntPtr context);
  74         internal delegate void UnmanagedPropertyChangeHandler (IntPtr dependency_object, IntPtr propertyChangedArgs, ref MoonError error, IntPtr closure);
  75
  76         internal delegate void TickCallHandler (IntPtr handle);
  77
  78
  79         internal delegate void InvokeDelegate (IntPtr obj_handle, IntPtr method_handle,
  80                                                                 [MarshalAs (UnmanagedType.LPStr)] string name,
  81                                                                 [MarshalAs (UnmanagedType.LPArray, SizeParamIndex = 4)]
  82                                                                 IntPtr[] args,
  83                                                                 int arg_count,
  84                                                                 ref Value return_value);
  85
  86         internal delegate void SetPropertyDelegate (IntPtr obj_handle, string name, ref Value value);
  87         internal delegate void GetPropertyDelegate (IntPtr obj_handle, string name, ref Value value);
  88         internal delegate void EventHandlerDelegate (IntPtr obj_handle, IntPtr event_handle, IntPtr scriptable_obj, IntPtr closure);
  89
  90         internal delegate uint DownloaderResponseStartedDelegate (IntPtr native, IntPtr context);
  91         internal delegate uint DownloaderResponseAvailableDelegate (IntPtr native, IntPtr context, IntPtr data, uint length);
  92         internal delegate uint DownloaderResponseFinishedDelegate (IntPtr native, IntPtr context, [MarshalAs (UnmanagedType.U1)] bool success, IntPtr data);
  93         internal delegate void HeaderVisitor (IntPtr context, IntPtr name, IntPtr val);
  94
  95         internal delegate void DomEventCallback (IntPtr context, string name, int client_x, int client_y, int offset_x, int offset_y,
  96                 [MarshalAs (UnmanagedType.Bool)] bool alt_key,  // glib gboolean is a gint (i.e. 4 bytes just like the FX bool)
  97                 [MarshalAs (UnmanagedType.Bool)] bool ctrl_key,
  98                 [MarshalAs (UnmanagedType.Bool)] bool shift_key,
  99                 int /* System.Windows.Browser.MouseButtons */ mouse_button,
 100                 int key_code,
 101                 int char_code,
 102                 IntPtr domEvent);
 103
 104         internal delegate bool ImageUriFunc (int level, int posx, int posy, IntPtr uri, IntPtr ignore);
 105
 106         internal static partial class NativeMethods {
 107                 /*
 108                  *
 109                  * Don't add any P/Invokes here.
 110                  *
 111                  * Add annotations (@GeneratePInvoke) to your C/C++ methods to generate the P/Invokes.
 112                  * If the generator gets parameters wrong, you can add a @MarshalAs=<whatever> to override.
 113                  *
 114                  */
 115                 internal static Exception CreateManagedException (MoonError err)
 116                 {
 117                         string msg = err.Message;
 118                         Exception ex = null;
 119
 120                         if (err.GCHandlePtr != IntPtr.Zero) {
 121                                 // We need to get this before calling Dispose.
 122                                 ex = err.GCHandle.Target as Exception;
 123                         }
 124
 125                         err.Dispose ();
 126
 127                         switch (err.Number) {
 128                         case 1:
 129                         default:
 130                                 return new Exception (msg);
 131                         case 2:
 132                                 return new ArgumentException (msg);
 133                         case 3:
 134                                 return new ArgumentNullException (msg);
 135                         case 4:
 136                                 return new ArgumentOutOfRangeException (msg);
 137                         case 5:
 138                                 return new InvalidOperationException (msg);
 139                         case 6:
 140                                 return new XamlParseException (err.LineNumber, err.CharPosition, msg);
 141                         case 7:
 142                                 return new UnauthorizedAccessException (msg);
 143                         case 8:
 144                                 return new ExecutionEngineException (msg);
 145                         case 9:
 146                                 if (ex != null)
 147                                         return ex;
 148                                 return new Exception (msg);
 149                         }
 150                 }
 151         }
 152 }