public void DetachEvh(SciterEventHandler evh)
{
Debug.Assert(evh != null);
var r = _api.SciterDetachEventHandler(_he, evh._proc, IntPtr.Zero);
Debug.Assert(r == SciterXDom.SCDOM_RESULT.SCDOM_OK);
}
/// <summary>
/// Attacheds a window level event-handler: it receives every event for all elements of the page.
/// You can only attach a single event-handler.
/// </summary>
/// <param name="evh"></param>
public void AttachEvh(SciterEventHandler evh)
{
Debug.Assert(_hwnd != IntPtr.Zero, "Call SciterHost.SetupWindow() first");
Debug.Assert(evh != null);
Debug.Assert(_window_evh == null, "You can attach only a single SciterEventHandler per SciterHost/window");
_window_evh = evh;
_api.SciterWindowAttachEventHandler(_hwnd, evh._proc, IntPtr.Zero, (uint)SciterXBehaviors.EVENT_GROUPS.HANDLE_ALL);
}
/// <summary>
/// Detaches the event-handler previously attached with AttachEvh()
/// </summary>
/// <param name="evh"></param>
public void DetachEvh()
{
Debug.Assert(_window_evh != null);
if (_window_evh != null)
{
_api.SciterWindowDetachEventHandler(_hwnd, _window_evh._proc, IntPtr.Zero);
_window_evh = null;
}
}
protected virtual bool OnAttachBehavior(SciterElement el, string behaviorName, out SciterEventHandler elementEvh)
{
// returns a new SciterEventHandler if the behaviorName was registered by a previous RegisterBehaviorHandler() call
if (_behaviorMap.ContainsKey(behaviorName))
{
elementEvh = (SciterEventHandler)Activator.CreateInstance(_behaviorMap[behaviorName]);
elementEvh.Name = "Create by registered native behavior factory: " + behaviorName;
return(true);
}
elementEvh = null;
return(false);
}
// Notification handler
private uint HandleNotification(IntPtr ptrNotification, IntPtr callbackParam)
{
SciterXDef.SCITER_CALLBACK_NOTIFICATION scn = (SciterXDef.SCITER_CALLBACK_NOTIFICATION)Marshal.PtrToStructure(ptrNotification, typeof(SciterXDef.SCITER_CALLBACK_NOTIFICATION));
switch (scn.code)
{
case SciterXDef.SC_LOAD_DATA:
SciterXDef.SCN_LOAD_DATA sld = (SciterXDef.SCN_LOAD_DATA)Marshal.PtrToStructure(ptrNotification, typeof(SciterXDef.SCN_LOAD_DATA));
return((uint)OnLoadData(sld));
case SciterXDef.SC_DATA_LOADED:
SciterXDef.SCN_DATA_LOADED sdl = (SciterXDef.SCN_DATA_LOADED)Marshal.PtrToStructure(ptrNotification, typeof(SciterXDef.SCN_DATA_LOADED));
OnDataLoaded(sdl);
return(0);
case SciterXDef.SC_ATTACH_BEHAVIOR:
SciterXDef.SCN_ATTACH_BEHAVIOR sab = (SciterXDef.SCN_ATTACH_BEHAVIOR)Marshal.PtrToStructure(ptrNotification, typeof(SciterXDef.SCN_ATTACH_BEHAVIOR));
SciterEventHandler elementEvh;
bool res = OnAttachBehavior(new SciterElement(sab.elem), Marshal.PtrToStringAnsi(sab.behaviorName), out elementEvh);
if (res)
{
SciterXBehaviors.FPTR_ElementEventProc proc = elementEvh._proc;
IntPtr ptrProc = Marshal.GetFunctionPointerForDelegate(proc);
IntPtr EVENTPROC_OFFSET = Marshal.OffsetOf(typeof(SciterXDef.SCN_ATTACH_BEHAVIOR), "elementProc");
IntPtr EVENTPROC_OFFSET2 = Marshal.OffsetOf(typeof(SciterXDef.SCN_ATTACH_BEHAVIOR), "elementTag");
Marshal.WriteIntPtr(ptrNotification, EVENTPROC_OFFSET.ToInt32(), ptrProc);
Marshal.WriteInt32(ptrNotification, EVENTPROC_OFFSET2.ToInt32(), 1234);
return(1);
}
return(0);
case SciterXDef.SC_ENGINE_DESTROYED:
if (_window_evh != null)
{
_api.SciterWindowDetachEventHandler(_hwnd, _window_evh._proc, IntPtr.Zero);
_window_evh = null;
}
OnEngineDestroyed();
return(0);
case SciterXDef.SC_POSTED_NOTIFICATION:
SciterXDef.SCN_POSTED_NOTIFICATION spn = (SciterXDef.SCN_POSTED_NOTIFICATION)Marshal.PtrToStructure(ptrNotification, typeof(SciterXDef.SCN_POSTED_NOTIFICATION));
IntPtr lreturn = IntPtr.Zero;
if (spn.wparam.ToInt32() == INVOKE_NOTIFICATION)
{
GCHandle handle = GCHandle.FromIntPtr(spn.lparam);
Action cbk = (Action)handle.Target;
cbk();
handle.Free();
}
else
{
lreturn = OnPostedNotification(spn.wparam, spn.lparam);
}
IntPtr OFFSET_LRESULT = Marshal.OffsetOf(typeof(SciterXDef.SCN_POSTED_NOTIFICATION), "lreturn");
Marshal.WriteIntPtr(ptrNotification, OFFSET_LRESULT.ToInt32(), lreturn);
return(0);
case SciterXDef.SC_GRAPHICS_CRITICAL_FAILURE:
SciterXDef.SCN_GRAPHICS_CRITICAL_FAILURE cgf = (SciterXDef.SCN_GRAPHICS_CRITICAL_FAILURE)Marshal.PtrToStructure(ptrNotification, typeof(SciterXDef.SCN_GRAPHICS_CRITICAL_FAILURE));
OnGraphicsCriticalFailure(cgf.hwnd);
return(0);
default:
Debug.Assert(false);
break;
}
return(0);
}
public void DetachEvh(SciterEventHandler evh)
{
Debug.Assert(evh != null);
var r = _api.SciterDetachEventHandler(_he, evh._proc, IntPtr.Zero);
Debug.Assert(r == SciterXDom.SCDOM_RESULT.SCDOM_OK);
}
// Notification handler
private uint HandleNotification(IntPtr ptrNotification, IntPtr callbackParam)
{
SciterXDef.SCITER_CALLBACK_NOTIFICATION scn = (SciterXDef.SCITER_CALLBACK_NOTIFICATION)Marshal.PtrToStructure(ptrNotification, typeof(SciterXDef.SCITER_CALLBACK_NOTIFICATION));
switch(scn.code)
{
case SciterXDef.SC_LOAD_DATA:
SciterXDef.SCN_LOAD_DATA sld = (SciterXDef.SCN_LOAD_DATA)Marshal.PtrToStructure(ptrNotification, typeof(SciterXDef.SCN_LOAD_DATA));
return (uint)OnLoadData(sld);
case SciterXDef.SC_DATA_LOADED:
SciterXDef.SCN_DATA_LOADED sdl = (SciterXDef.SCN_DATA_LOADED)Marshal.PtrToStructure(ptrNotification, typeof(SciterXDef.SCN_DATA_LOADED));
OnDataLoaded(sdl);
return 0;
case SciterXDef.SC_ATTACH_BEHAVIOR:
SciterXDef.SCN_ATTACH_BEHAVIOR sab = (SciterXDef.SCN_ATTACH_BEHAVIOR)Marshal.PtrToStructure(ptrNotification, typeof(SciterXDef.SCN_ATTACH_BEHAVIOR));
SciterEventHandler elementEvh;
bool res = OnAttachBehavior(new SciterElement(sab.elem), Marshal.PtrToStringAnsi(sab.behaviorName), out elementEvh);
if(res)
{
SciterXBehaviors.FPTR_ElementEventProc proc = elementEvh._proc;
IntPtr ptrProc = Marshal.GetFunctionPointerForDelegate(proc);
IntPtr EVENTPROC_OFFSET = Marshal.OffsetOf(typeof(SciterXDef.SCN_ATTACH_BEHAVIOR), "elementProc");
IntPtr EVENTPROC_OFFSET2 = Marshal.OffsetOf(typeof(SciterXDef.SCN_ATTACH_BEHAVIOR), "elementTag");
Marshal.WriteIntPtr(ptrNotification, EVENTPROC_OFFSET.ToInt32(), ptrProc);
Marshal.WriteInt32(ptrNotification, EVENTPROC_OFFSET2.ToInt32(), 1234);
return 1;
}
return 0;
case SciterXDef.SC_ENGINE_DESTROYED:
if(_window_evh != null)
{
_api.SciterWindowDetachEventHandler(_hwnd, _window_evh._proc, IntPtr.Zero);
_window_evh = null;
}
OnEngineDestroyed();
return 0;
case SciterXDef.SC_POSTED_NOTIFICATION:
SciterXDef.SCN_POSTED_NOTIFICATION spn = (SciterXDef.SCN_POSTED_NOTIFICATION)Marshal.PtrToStructure(ptrNotification, typeof(SciterXDef.SCN_POSTED_NOTIFICATION));
IntPtr lreturn = IntPtr.Zero;
if(spn.wparam.ToInt32() == INVOKE_NOTIFICATION)
{
GCHandle handle = GCHandle.FromIntPtr(spn.lparam);
Action cbk = (Action)handle.Target;
cbk();
handle.Free();
}
else
{
lreturn = OnPostedNotification(spn.wparam, spn.lparam);
}
IntPtr OFFSET_LRESULT = Marshal.OffsetOf(typeof(SciterXDef.SCN_POSTED_NOTIFICATION), "lreturn");
Marshal.WriteIntPtr(ptrNotification, OFFSET_LRESULT.ToInt32(), lreturn);
return 0;
case SciterXDef.SC_GRAPHICS_CRITICAL_FAILURE:
SciterXDef.SCN_GRAPHICS_CRITICAL_FAILURE cgf = (SciterXDef.SCN_GRAPHICS_CRITICAL_FAILURE)Marshal.PtrToStructure(ptrNotification, typeof(SciterXDef.SCN_GRAPHICS_CRITICAL_FAILURE));
OnGraphicsCriticalFailure(cgf.hwnd);
return 0;
default:
Debug.Assert(false);
break;
}
return 0;
}
protected virtual bool OnAttachBehavior(SciterElement el, string behaviorName, out SciterEventHandler elementEvh)
{
// returns a new SciterEventHandler if the behaviorName was registered by a previous RegisterBehaviorHandler() call
if (_behaviorMap.ContainsKey(behaviorName))
{
elementEvh = (SciterEventHandler)Activator.CreateInstance(_behaviorMap[behaviorName]);
elementEvh.Name = "Create by registered native behavior factory: " + behaviorName;
return true;
}
elementEvh = null;
return false;
}
/// <summary>
/// Attacheds a window level event-handler: it receives every event for all elements of the page.
/// You can only attach a single event-handler.
/// </summary>
/// <param name="evh"></param>
public void AttachEvh(SciterEventHandler evh)
{
Debug.Assert(_hwnd != IntPtr.Zero, "Call SciterHost.SetupWindow() first");
Debug.Assert(evh != null);
Debug.Assert(_window_evh == null, "You can attach only a single SciterEventHandler per SciterHost/window");
_window_evh = evh;
_api.SciterWindowAttachEventHandler(_hwnd, evh._proc, IntPtr.Zero, (uint)SciterXBehaviors.EVENT_GROUPS.HANDLE_ALL);
}
