protected override bool OnDraw(SciterElement se, SciterXBehaviors.DRAW_PARAMS prms)
{
if(prms.cmd == SciterXBehaviors.DRAW_EVENTS.DRAW_CONTENT)
{
using(SciterGraphics g = new SciterGraphics(prms.gfx))
{
g.StateSave();
g.Translate(prms.area.left, prms.area.top);
List<Tuple<float, float>> points = new List<Tuple<float, float>>
{
Tuple.Create(100.0f, 0.0f),
Tuple.Create(150.0f, 150.0f),
Tuple.Create(50.0f, 150.0f)
};
g.LineColor = Color.Blue;
g.FillColor = Color.Red;
g.LineWidth = 5;
g.Polygon(points);
g.Ellipse(200, 50, 50, 50);
g.StateRestore();
}
return true;
}
return false;
}
public bool SendEvent(uint event_code, uint reason = 0, SciterElement heSource = null)
{
bool handled;
_api.SciterSendEvent(_he, event_code, heSource == null ? IntPtr.Zero : heSource._he, new IntPtr(reason), out handled);
return(handled);
}
protected virtual bool OnScriptCall(SciterElement se, string name, SciterValue[] args, out SciterValue result)
{
var method = this.GetType().GetMethod(name);
if (method != null)
{
// This base class tries to handle it by searching for a method with the same 'name'
object[] call_parameters = new object[] { se, args, null };
Debug.Assert(call_parameters.Length == 3);
// Signature of that method should be:
// bool MethodName(SciterElement el, SciterValue[] args, out SciterValue result)
//
// Verify correct signature:
Debug.Assert(method.ReturnType == typeof(Boolean));
Debug.Assert(method.GetParameters().Length == 3);
Debug.Assert(method.GetParameters()[0].ParameterType.Name == "SciterElement");
Debug.Assert(method.GetParameters()[1].ParameterType.Name == "SciterValue[]");
Debug.Assert(method.GetParameters()[2].ParameterType.Name == "SciterValue&");
// invoke method and verify return
bool res = (bool)method.Invoke(this, call_parameters);
Debug.Assert(call_parameters[2] == null || call_parameters[2].GetType().IsAssignableFrom(typeof(SciterValue)));
result = call_parameters[2] as SciterValue;
return(res);
}
// not handled
result = null;
return(false);
}
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]);
return(true);
}
elementEvh = null;
return(false);
}
public SciterElement SelectFirst(string selector)
{
SciterElement se = null;
SciterXDom.FPTR_SciterElementCallback cbk = (IntPtr he, IntPtr param) =>
{
se = new SciterElement(he);
return(true); // true stops enumeration
};
_api.SciterSelectElementsW(_he, selector, cbk, IntPtr.Zero);
return(se);
}
public static SciterText CreateForElement(string text, SciterElement element)
{
IntPtr htext;
var r = _gapi.textCreateForElement(out htext, text, (uint)text.Length, element._he);
Debug.Assert(r == SciterXGraphics.GRAPHIN_RESULT.GRAPHIN_OK);
Debug.Assert(htext != IntPtr.Zero);
SciterText st = new SciterText();
st._htext = htext;
return(st);
}
protected override bool OnDraw(SciterElement se, SciterXBehaviors.DRAW_PARAMS prms)
{
var b = new Bitmap(406, 400);
using(var g = Graphics.FromImage(b))
{
LinearGradientBrush linGrBrush = new LinearGradientBrush(
new Point(0, 10),
new Point(200, 10),
Color.FromArgb(255, 255, 0, 0), // Opaque red
Color.FromArgb(255, 0, 0, 255)); // Opaque blue
g.SmoothingMode = SmoothingMode.AntiAlias;
g.FillEllipse(linGrBrush, 0, 30, 200, 100);
}
var img = new SciterImage(b);
var gfx = new SciterGraphics(prms.gfx);
gfx.BlendImage(img, 0, 0);
return true;
}
public bool IsChildOf(SciterElement parent_test)
{
SciterElement el_it = this;
while (true)
{
if (el_it._he == parent_test._he)
{
return(true);
}
el_it = el_it.Parent;
if (el_it == null)
{
break;
}
}
return(false);
}
protected override bool OnDraw(SciterElement se, SciterXBehaviors.DRAW_PARAMS prms)
{
if(prms.cmd == SciterXBehaviors.DRAW_EVENTS.DRAW_CONTENT)
{
SciterText txt = SciterText.Create("hi", new SciterXGraphics.SCITER_TEXT_FORMAT
{
fontFamily = "Arial",
fontSize = 15,
fontWeight = 400,
lineHeight = 30
});
using(SciterGraphics g = new SciterGraphics(prms.gfx))
{
g.DrawText(txt, 0, 0, 7);
}
return true;
}
return false;
}
public void PostEvent(uint event_code, uint reason = 0, SciterElement heSource = null)
{
_api.SciterPostEvent(_he, event_code, heSource == null ? IntPtr.Zero : heSource._he, new IntPtr(reason));
}
protected virtual bool OnDraw(SciterElement se, SciterXBehaviors.DRAW_PARAMS prms)
{
return(false);
}
public SciterElement SelectFirst(string selector)
{
SciterElement se = null;
SciterXDom.FPTR_SciterElementCallback cbk = (IntPtr he, IntPtr param) =>
{
se = new SciterElement(he);
return true;// true stops enumeration
};
_api.SciterSelectElementsW(_he, selector, cbk, IntPtr.Zero);
return se;
}
public void Append(SciterElement se)
{
_api.SciterInsertElement(se._he, _he, int.MaxValue);
}
protected virtual bool OnDataArrived(SciterElement se, SciterXBehaviors.DATA_ARRIVED_PARAMS prms)
{
return false;
}
public void TestSciterElement()
{
SciterElement el = SciterElement.Create("div");
SciterElement el2 = new SciterElement(el._he);
Assert.IsTrue(el == el2);
}
protected virtual bool OnScriptCall(SciterElement se, string name, SciterValue[] args, out SciterValue result)
{
var method = this.GetType().GetMethod(name);
if(method != null)
{
// This base class tries to handle it by searching for a method with the same 'name'
object[] call_parameters = new object[] { se, args, null };
Debug.Assert(call_parameters.Length == 3);
// Signature of that method should be:
// bool MethodName(SciterElement el, SciterValue[] args, out SciterValue result)
//
// Verify correct signature:
Debug.Assert(method.ReturnType == typeof(Boolean));
Debug.Assert(method.GetParameters().Length == 3);
Debug.Assert(method.GetParameters()[0].ParameterType.Name == "SciterElement");
Debug.Assert(method.GetParameters()[1].ParameterType.Name == "SciterValue[]");
Debug.Assert(method.GetParameters()[2].ParameterType.Name == "SciterValue&");
// invoke method and verify return
bool res = (bool)method.Invoke(this, call_parameters);
Debug.Assert(call_parameters[2] == null || call_parameters[2].GetType().IsAssignableFrom(typeof(SciterValue)));
result = call_parameters[2] as SciterValue;
return res;
}
// not handled
result = null;
return false;
}
protected virtual bool OnTimer(SciterElement se, IntPtr extTimerId)
{
return false;
}
protected override bool OnScriptCall(SciterElement se, string name, SciterValue[] args, out SciterValue result)
{
result = null;
return false;
}
protected virtual bool OnGesture(SciterElement se, SciterXBehaviors.GESTURE_PARAMS prms)
{
return false;
}
protected virtual bool OnScriptCall(SciterElement se, string name, SciterValue[] args, out SciterValue result)
{
result = null; return(false);
}
protected override bool OnScriptCall(SciterElement se, string name, SciterValue[] args, out SciterValue result)
{
result = null;
switch(name)
{
case "Host_DownloadFont":
string savefolder = args[0].Get("");
string family = args[1].Get("");
SciterValue async_cbk = args[2];
string str = async_cbk.ToString();
Task.Run(() =>
{
bool res;
try
{
GAPI.DownloadFont(family, savefolder);
res = true;
}
catch(Exception)
{
res = false;
}
Program.HostInstance.InvokePost(() =>
{
async_cbk.Call(new SciterValue(res));
});
});
return true;
}
return false;
}
protected virtual bool OnExchange(SciterElement se, SciterXBehaviors.EXCHANGE_PARAMS prms)
{
return(false);
}
public bool OnWhat(SciterElement el, SciterValue[] args, out SciterValue result)
{
result = null;
return true;
}
public bool SendEvent(uint event_code, uint reason = 0, SciterElement heSource = null)
{
bool handled;
_api.SciterSendEvent(_he, event_code, heSource == null ? IntPtr.Zero : heSource._he, new IntPtr(reason), out handled);
return handled;
}
protected virtual bool OnMethodCall(SciterElement se, SciterXBehaviors.BEHAVIOR_METHOD_IDENTIFIERS methodID)
{
return false;
}
protected virtual bool OnMethodCall(SciterElement se, SciterXBehaviors.BEHAVIOR_METHOD_IDENTIFIERS methodID)
{
return(false);
}
protected virtual bool OnSize(SciterElement se)
{
return false;
}
protected virtual bool OnScriptCall(SciterElement se, string name, SciterValue[] args, out SciterValue result)
{
result = null;
var method = GetType().GetMethod(name);
if (method != null)
{
// This base class tries to handle it by searching for a method with the same 'name'
var mparams = method.GetParameters();
// match signature:
// 'void MethodName()' or 'SciterValue MethodName()'
{
if (mparams.Length == 0 &&
(method.ReturnType == typeof(void) || method.ReturnType == typeof(SciterValue)))
{
var ret = method.Invoke(this, null);
if (method.ReturnType == typeof(SciterValue))
{
result = (SciterValue)ret;
}
return(true);
}
}
// match signature:
// 'void MethodName(SciterValue[] args)' or 'SciterValue MethodName(SciterValue[] args)'
{
if (mparams.Length == 1 && mparams[0].ParameterType.Name == "SciterValue[]" &&
(method.ReturnType == typeof(void) || method.ReturnType == typeof(SciterValue)))
{
object[] call_parameters = new object[] { args };
var ret = method.Invoke(this, call_parameters);
if (method.ReturnType == typeof(SciterValue))
{
result = (SciterValue)ret;
}
return(true);
}
}
// match signature:
// bool MethodName(SciterElement el, SciterValue[] args, out SciterValue result)
{
if (method.ReturnType == typeof(bool) && mparams.Length == 3 &&
mparams[0].ParameterType.Name == "SciterElement" &&
mparams[1].ParameterType.Name == "SciterValue[]" &&
mparams[2].ParameterType.Name == "SciterValue&")
{
object[] call_parameters = new object[] { se, args, null };
bool res = (bool)method.Invoke(this, call_parameters);
Debug.Assert(call_parameters[2] == null || call_parameters[2].GetType().IsAssignableFrom(typeof(SciterValue)));
result = call_parameters[2] as SciterValue;
return(res);
}
}
}
// not handled
return(false);
}
// EventProc
private bool EventProc(IntPtr tag, IntPtr he, uint evtg, IntPtr prms)
{
SciterElement se = null;
if(he != IntPtr.Zero)
se = new SciterElement(he);
switch((SciterXBehaviors.EVENT_GROUPS)evtg)
{
case SciterXBehaviors.EVENT_GROUPS.SUBSCRIPTIONS_REQUEST:
{
SciterXBehaviors.EVENT_GROUPS groups;
Subscription(se, out groups);
Marshal.WriteInt32(prms, (int)groups);
return true;
}
case SciterXBehaviors.EVENT_GROUPS.HANDLE_INITIALIZATION:
{
SciterXBehaviors.INITIALIZATION_PARAMS p = (SciterXBehaviors.INITIALIZATION_PARAMS)Marshal.PtrToStructure(prms, typeof(SciterXBehaviors.INITIALIZATION_PARAMS));
if(p.cmd == SciterXBehaviors.INITIALIZATION_EVENTS.BEHAVIOR_ATTACH)
{
#if DEBUG
Debug.Assert(_is_attached == false);
_is_attached = true;
#endif
_attached_handlers.Add(this);
Attached(se);
}
else if(p.cmd == SciterXBehaviors.INITIALIZATION_EVENTS.BEHAVIOR_DETACH)
{
#if DEBUG
Debug.Assert(_is_attached == true);
_is_attached = false;
#endif
_attached_handlers.Remove(this);
Detached(se);
}
return true;
}
case SciterXBehaviors.EVENT_GROUPS.HANDLE_MOUSE:
{
SciterXBehaviors.MOUSE_PARAMS p = (SciterXBehaviors.MOUSE_PARAMS)Marshal.PtrToStructure(prms, typeof(SciterXBehaviors.MOUSE_PARAMS));
return OnMouse(se, p);
}
case SciterXBehaviors.EVENT_GROUPS.HANDLE_KEY:
{
SciterXBehaviors.KEY_PARAMS p = (SciterXBehaviors.KEY_PARAMS)Marshal.PtrToStructure(prms, typeof(SciterXBehaviors.KEY_PARAMS));
return OnKey(se, p);
}
case SciterXBehaviors.EVENT_GROUPS.HANDLE_FOCUS:
{
SciterXBehaviors.FOCUS_PARAMS p = (SciterXBehaviors.FOCUS_PARAMS)Marshal.PtrToStructure(prms, typeof(SciterXBehaviors.FOCUS_PARAMS));
return OnFocus(se, p);
}
case SciterXBehaviors.EVENT_GROUPS.HANDLE_DRAW:
{
SciterXBehaviors.DRAW_PARAMS p = (SciterXBehaviors.DRAW_PARAMS)Marshal.PtrToStructure(prms, typeof(SciterXBehaviors.DRAW_PARAMS));
return OnDraw(se, p);
}
case SciterXBehaviors.EVENT_GROUPS.HANDLE_TIMER:
{
SciterXBehaviors.TIMER_PARAMS p = (SciterXBehaviors.TIMER_PARAMS)Marshal.PtrToStructure(prms, typeof(SciterXBehaviors.TIMER_PARAMS));
if(p.timerId != IntPtr.Zero)
return OnTimer(se, p.timerId);
return OnTimer(se);
}
case SciterXBehaviors.EVENT_GROUPS.HANDLE_BEHAVIOR_EVENT:
{
SciterXBehaviors.BEHAVIOR_EVENT_PARAMS p = (SciterXBehaviors.BEHAVIOR_EVENT_PARAMS)Marshal.PtrToStructure(prms, typeof(SciterXBehaviors.BEHAVIOR_EVENT_PARAMS));
SciterElement se2 = p.he != IntPtr.Zero ? new SciterElement(p.he) : null;
return OnEvent(se, se2, (SciterXBehaviors.BEHAVIOR_EVENTS)p.cmd, p.reason, new SciterValue(p.data));// maybe I should not pass SciterValue to avoid add-refing the VALUE
}
case SciterXBehaviors.EVENT_GROUPS.HANDLE_METHOD_CALL:
{
SciterXDom.METHOD_PARAMS p = (SciterXDom.METHOD_PARAMS)Marshal.PtrToStructure(prms, typeof(SciterXDom.METHOD_PARAMS));
return OnMethodCall(se, p.methodID);
}
case SciterXBehaviors.EVENT_GROUPS.HANDLE_DATA_ARRIVED:
{
SciterXBehaviors.DATA_ARRIVED_PARAMS p = (SciterXBehaviors.DATA_ARRIVED_PARAMS)Marshal.PtrToStructure(prms, typeof(SciterXBehaviors.DATA_ARRIVED_PARAMS));
return OnDataArrived(se, p);
}
case SciterXBehaviors.EVENT_GROUPS.HANDLE_SCROLL:
{
SciterXBehaviors.SCROLL_PARAMS p = (SciterXBehaviors.SCROLL_PARAMS)Marshal.PtrToStructure(prms, typeof(SciterXBehaviors.SCROLL_PARAMS));
return OnScroll(se, p);
}
case SciterXBehaviors.EVENT_GROUPS.HANDLE_SIZE:
return OnSize(se);
case SciterXBehaviors.EVENT_GROUPS.HANDLE_SCRIPTING_METHOD_CALL:
{
IntPtr RESULT_OFFSET = Marshal.OffsetOf(typeof(SciterXBehaviors.SCRIPTING_METHOD_PARAMS), "result");
#if OSX
if(IntPtr.Size == 4)
Debug.Assert(RESULT_OFFSET.ToInt32() == 12);
#else
if(IntPtr.Size == 4)
Debug.Assert(RESULT_OFFSET.ToInt32() == 16);// yep 16, strange but is what VS C++ compiler says
#endif
else if(IntPtr.Size == 8)
Debug.Assert(RESULT_OFFSET.ToInt32() == 24);
SciterXBehaviors.SCRIPTING_METHOD_PARAMS p = (SciterXBehaviors.SCRIPTING_METHOD_PARAMS)Marshal.PtrToStructure(prms, typeof(SciterXBehaviors.SCRIPTING_METHOD_PARAMS));
SciterXBehaviors.SCRIPTING_METHOD_PARAMS_Wraper pw = new SciterXBehaviors.SCRIPTING_METHOD_PARAMS_Wraper(p);
bool bOK = OnScriptCall(se, pw.name, pw.args, out pw.result);
if(bOK && pw.result != null)
{
SciterXValue.VALUE vres = pw.result.ToVALUE();
IntPtr vptr = IntPtr.Add(prms, RESULT_OFFSET.ToInt32());
Marshal.StructureToPtr(vres, vptr, false);
}
return bOK;
}
case SciterXBehaviors.EVENT_GROUPS.HANDLE_TISCRIPT_METHOD_CALL:
/*
COMMENTED BECAUSE THIS EVENT IS NEVER USED, AND JUST ADDS MORE CONFUSION
INSTEAD, IT'S BETTER TO HANDLE EVENT_GROUPS.HANDLE_SCRIPTING_METHOD_CALL/OnScriptCall
{
SciterXBehaviors.TISCRIPT_METHOD_PARAMS p = Marshal.PtrToStructure<SciterXBehaviors.TISCRIPT_METHOD_PARAMS>(prms);
bool res = OnScriptCall(se, p);
return res;
}
*/
return false;
case SciterXBehaviors.EVENT_GROUPS.HANDLE_GESTURE:
{
SciterXBehaviors.GESTURE_PARAMS p = (SciterXBehaviors.GESTURE_PARAMS)Marshal.PtrToStructure(prms, typeof(SciterXBehaviors.GESTURE_PARAMS));
return OnGesture(se, p);
}
default:
Debug.Assert(false);
return false;
}
}
protected virtual bool OnEvent(SciterElement elSource, SciterElement elTarget, SciterXBehaviors.BEHAVIOR_EVENTS type, IntPtr reason, SciterValue data)
{
return(false);
}
protected virtual bool OnEvent(SciterElement elSource, SciterElement elTarget, SciterXBehaviors.BEHAVIOR_EVENTS type, IntPtr reason, SciterValue data)
{
return false;
}
protected virtual bool OnDataArrived(SciterElement se, SciterXBehaviors.DATA_ARRIVED_PARAMS prms)
{
return(false);
}
public static SciterText CreateForElement(string text, SciterElement element)
{
IntPtr htext;
var r = _gapi.textCreateForElement(out htext, text, (uint)text.Length, element._he);
Debug.Assert(r == SciterXGraphics.GRAPHIN_RESULT.GRAPHIN_OK);
Debug.Assert(htext != IntPtr.Zero);
SciterText st = new SciterText();
st._htext = htext;
return st;
}
protected virtual bool OnScroll(SciterElement se, SciterXBehaviors.SCROLL_PARAMS prms)
{
return(false);
}
public void Insert(SciterElement se, uint index = 0)
{
_api.SciterInsertElement(se._he, _he, index);
}
protected virtual bool OnGesture(SciterElement se, SciterXBehaviors.GESTURE_PARAMS prms)
{
return(false);
}
public void Swap(SciterElement sewith)
{
_api.SciterSwapElements(_he, sewith._he);
}
// EventProc
private bool EventProc(IntPtr tag, IntPtr he, uint evtg, IntPtr prms)
{
SciterElement se = null;
if (he != IntPtr.Zero)
{
se = new SciterElement(he);
}
switch ((SciterXBehaviors.EVENT_GROUPS)evtg)
{
case SciterXBehaviors.EVENT_GROUPS.SUBSCRIPTIONS_REQUEST:
{
SciterXBehaviors.EVENT_GROUPS groups;
Subscription(se, out groups);
Marshal.WriteInt32(prms, (int)groups);
return(true);
}
case SciterXBehaviors.EVENT_GROUPS.HANDLE_INITIALIZATION:
{
SciterXBehaviors.INITIALIZATION_PARAMS p = (SciterXBehaviors.INITIALIZATION_PARAMS)Marshal.PtrToStructure(prms, typeof(SciterXBehaviors.INITIALIZATION_PARAMS));
if (p.cmd == SciterXBehaviors.INITIALIZATION_EVENTS.BEHAVIOR_ATTACH)
{
#if DEBUG
Debug.Assert(_is_attached == false);
_is_attached = true;
#endif
_attached_handlers.Add(this);
Attached(se);
}
else if (p.cmd == SciterXBehaviors.INITIALIZATION_EVENTS.BEHAVIOR_DETACH)
{
#if DEBUG
Debug.Assert(_is_attached == true);
_is_attached = false;
#endif
_attached_handlers.Remove(this);
Detached(se);
}
return(true);
}
case SciterXBehaviors.EVENT_GROUPS.HANDLE_MOUSE:
{
SciterXBehaviors.MOUSE_PARAMS p = (SciterXBehaviors.MOUSE_PARAMS)Marshal.PtrToStructure(prms, typeof(SciterXBehaviors.MOUSE_PARAMS));
return(OnMouse(se, p));
}
case SciterXBehaviors.EVENT_GROUPS.HANDLE_KEY:
{
SciterXBehaviors.KEY_PARAMS p = (SciterXBehaviors.KEY_PARAMS)Marshal.PtrToStructure(prms, typeof(SciterXBehaviors.KEY_PARAMS));
return(OnKey(se, p));
}
case SciterXBehaviors.EVENT_GROUPS.HANDLE_FOCUS:
{
SciterXBehaviors.FOCUS_PARAMS p = (SciterXBehaviors.FOCUS_PARAMS)Marshal.PtrToStructure(prms, typeof(SciterXBehaviors.FOCUS_PARAMS));
return(OnFocus(se, p));
}
case SciterXBehaviors.EVENT_GROUPS.HANDLE_DRAW:
{
SciterXBehaviors.DRAW_PARAMS p = (SciterXBehaviors.DRAW_PARAMS)Marshal.PtrToStructure(prms, typeof(SciterXBehaviors.DRAW_PARAMS));
return(OnDraw(se, p));
}
case SciterXBehaviors.EVENT_GROUPS.HANDLE_TIMER:
{
SciterXBehaviors.TIMER_PARAMS p = (SciterXBehaviors.TIMER_PARAMS)Marshal.PtrToStructure(prms, typeof(SciterXBehaviors.TIMER_PARAMS));
if (p.timerId != IntPtr.Zero)
{
return(OnTimer(se, p.timerId));
}
return(OnTimer(se));
}
case SciterXBehaviors.EVENT_GROUPS.HANDLE_BEHAVIOR_EVENT:
{
SciterXBehaviors.BEHAVIOR_EVENT_PARAMS p = (SciterXBehaviors.BEHAVIOR_EVENT_PARAMS)Marshal.PtrToStructure(prms, typeof(SciterXBehaviors.BEHAVIOR_EVENT_PARAMS));
SciterElement se2 = p.he != IntPtr.Zero ? new SciterElement(p.he) : null;
return(OnEvent(se, se2, p.cmd, p.reason, new SciterValue(p.data)));
}
case SciterXBehaviors.EVENT_GROUPS.HANDLE_METHOD_CALL:
{
SciterXDom.METHOD_PARAMS p = (SciterXDom.METHOD_PARAMS)Marshal.PtrToStructure(prms, typeof(SciterXDom.METHOD_PARAMS));
return(OnMethodCall(se, p.methodID));
}
case SciterXBehaviors.EVENT_GROUPS.HANDLE_DATA_ARRIVED:
{
SciterXBehaviors.DATA_ARRIVED_PARAMS p = (SciterXBehaviors.DATA_ARRIVED_PARAMS)Marshal.PtrToStructure(prms, typeof(SciterXBehaviors.DATA_ARRIVED_PARAMS));
return(OnDataArrived(se, p));
}
case SciterXBehaviors.EVENT_GROUPS.HANDLE_SCROLL:
{
SciterXBehaviors.SCROLL_PARAMS p = (SciterXBehaviors.SCROLL_PARAMS)Marshal.PtrToStructure(prms, typeof(SciterXBehaviors.SCROLL_PARAMS));
return(OnScroll(se, p));
}
case SciterXBehaviors.EVENT_GROUPS.HANDLE_SIZE:
return(OnSize(se));
case SciterXBehaviors.EVENT_GROUPS.HANDLE_SCRIPTING_METHOD_CALL:
{
IntPtr RESULT_OFFSET = Marshal.OffsetOf(typeof(SciterXBehaviors.SCRIPTING_METHOD_PARAMS), "result");
#if OSX
if (IntPtr.Size == 4)
{
Debug.Assert(RESULT_OFFSET.ToInt32() == 12);
}
#else
if (IntPtr.Size == 4)
{
Debug.Assert(RESULT_OFFSET.ToInt32() == 16); // yep 16, strange but is what VS C++ compiler says
}
#endif
else if (IntPtr.Size == 8)
{
Debug.Assert(RESULT_OFFSET.ToInt32() == 24);
}
SciterXBehaviors.SCRIPTING_METHOD_PARAMS p = (SciterXBehaviors.SCRIPTING_METHOD_PARAMS)Marshal.PtrToStructure(prms, typeof(SciterXBehaviors.SCRIPTING_METHOD_PARAMS));
SciterXBehaviors.SCRIPTING_METHOD_PARAMS_Wraper pw = new SciterXBehaviors.SCRIPTING_METHOD_PARAMS_Wraper(p);
bool bOK = OnScriptCall(se, pw.name, pw.args, out pw.result);
if (bOK && pw.result != null)
{
SciterXValue.VALUE vres = pw.result.ToVALUE();
IntPtr vptr = IntPtr.Add(prms, RESULT_OFFSET.ToInt32());
Marshal.StructureToPtr(vres, vptr, false);
}
return(bOK);
}
case SciterXBehaviors.EVENT_GROUPS.HANDLE_TISCRIPT_METHOD_CALL:
/*
* COMMENTED BECAUSE THIS EVENT IS NEVER USED, AND JUST ADDS MORE CONFUSION
* INSTEAD, IT'S BETTER TO HANDLE EVENT_GROUPS.HANDLE_SCRIPTING_METHOD_CALL/OnScriptCall
* {
* SciterXBehaviors.TISCRIPT_METHOD_PARAMS p = Marshal.PtrToStructure<SciterXBehaviors.TISCRIPT_METHOD_PARAMS>(prms);
* bool res = OnScriptCall(se, p);
* return res;
* }
*/
return(false);
case SciterXBehaviors.EVENT_GROUPS.HANDLE_GESTURE:
{
SciterXBehaviors.GESTURE_PARAMS p = (SciterXBehaviors.GESTURE_PARAMS)Marshal.PtrToStructure(prms, typeof(SciterXBehaviors.GESTURE_PARAMS));
return(OnGesture(se, p));
}
default:
Debug.Assert(false);
return(false);
}
}
public void PostEvent(uint event_code, uint reason = 0, SciterElement heSource = null)
{
_api.SciterPostEvent(_he, event_code, heSource == null ? IntPtr.Zero : heSource._he, new IntPtr(reason));
}
public readonly SciterXBehaviors.FPTR_ElementEventProc _proc; // keep a copy of the delegate so it survives GC
// Overridables
protected virtual void Subscription(SciterElement se, out SciterXBehaviors.EVENT_GROUPS event_groups)
{
event_groups = SciterXBehaviors.EVENT_GROUPS.HANDLE_ALL;
}
protected virtual bool OnFocus(SciterElement se, SciterXBehaviors.FOCUS_PARAMS prms)
{
return false;
}
protected virtual void Detached(SciterElement se)
{
}
protected virtual bool OnKey(SciterElement se, SciterXBehaviors.KEY_PARAMS prms)
{
return false;
}
protected virtual bool OnMouse(SciterElement se, SciterXBehaviors.MOUSE_PARAMS prms)
{
return(false);
}
protected virtual bool OnMouse(SciterElement se, SciterXBehaviors.MOUSE_PARAMS prms)
{
return false;
}
protected virtual bool OnKey(SciterElement se, SciterXBehaviors.KEY_PARAMS prms)
{
return(false);
}
protected virtual bool OnScroll(SciterElement se, SciterXBehaviors.SCROLL_PARAMS prms)
{
return false;
}
protected virtual bool OnFocus(SciterElement se, SciterXBehaviors.FOCUS_PARAMS prms)
{
return(false);
}
protected virtual bool OnTimer(SciterElement se)
{
return false;
}
protected virtual bool OnTimer(SciterElement se)
{
return(false);
}
// Overridables
protected virtual void Subscription(SciterElement se, out SciterXBehaviors.EVENT_GROUPS event_groups)
{
event_groups = SciterXBehaviors.EVENT_GROUPS.HANDLE_ALL;
}
public bool IsChildOf(SciterElement parent_test)
{
SciterElement el_it = this;
while(true)
{
if(el_it._he == parent_test._he)
return true;
el_it = el_it.Parent;
if(el_it == null)
break;
}
return false;
}
protected virtual void Detached(SciterElement se)
{
}
protected virtual bool OnSize(SciterElement se)
{
return(false);
}
protected virtual bool OnDraw(SciterElement se, SciterXBehaviors.DRAW_PARAMS prms)
{
return false;
}
protected override bool OnScriptCall(SciterElement se, string name, SciterValue[] args, out SciterValue result)
{
switch(name)
{
case "Host_HelloWorld":
result = new SciterValue("Hello World! (from native side)");
return true;
}
result = null;
return false;
}
protected virtual bool OnTimer(SciterElement se, IntPtr extTimerId)
{
return(false);
}
public void Swap(SciterElement sewith)
{
_api.SciterSwapElements(_he, sewith._he);
}
