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Investigate all the messages and note short comments about them and provide a link to a documentation. In case anyone will need this in the future

Stylus
Sergey Mikolaytis 5 years ago
parent
44fda62a9b
commit
1192e86d90
3 changed files with 99 additions and 44 deletions
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  1. 2
      src/Windows/Avalonia.Win32/Interop/UnmanagedMethods.cs
  2. 139
      src/Windows/Avalonia.Win32/WindowImpl.AppWndProc.cs
  3. 2
      src/Windows/Avalonia.Win32/WindowImpl.cs

2
src/Windows/Avalonia.Win32/Interop/UnmanagedMethods.cs
View File

@ -730,7 +730,7 @@ namespace Avalonia.Win32.Interop
WM_TOUCHHITTESTING = 0x024D,
WM_POINTERWHEEL = 0x024E,
WM_POINTERHWHEEL = 0x024F,
WM_POINTERHITTEST = 0x0250,
DM_POINTERHITTEST = 0x0250,
WM_IME_SETCONTEXT = 0x0281,
WM_IME_NOTIFY = 0x0282,

139
src/Windows/Avalonia.Win32/WindowImpl.AppWndProc.cs
View File

@ -227,10 +227,6 @@ namespace Avalonia.Win32
}
// Mouse capture is lost
case WindowsMessage.WM_CANCELMODE:
if (BelowWin8)
{
break;
}
_mouseDevice.Capture(null);
break;
@ -263,7 +259,8 @@ namespace Avalonia.Win32
timestamp,
_owner,
RawPointerEventType.Move,
DipFromLParam(lParam), GetMouseModifiers(wParam));
DipFromLParam(lParam),
GetMouseModifiers(wParam));
break;
}
@ -279,7 +276,8 @@ namespace Avalonia.Win32
timestamp,
_owner,
PointToClient(PointFromLParam(lParam)),
new Vector(0, (ToInt32(wParam) >> 16) / wheelDelta), GetMouseModifiers(wParam));
new Vector(0, (ToInt32(wParam) >> 16) / wheelDelta),
GetMouseModifiers(wParam));
break;
}
@ -294,7 +292,8 @@ namespace Avalonia.Win32
timestamp,
_owner,
PointToClient(PointFromLParam(lParam)),
new Vector(-(ToInt32(wParam) >> 16) / wheelDelta, 0), GetMouseModifiers(wParam));
new Vector(-(ToInt32(wParam) >> 16) / wheelDelta, 0),
GetMouseModifiers(wParam));
break;
}
@ -310,7 +309,8 @@ namespace Avalonia.Win32
timestamp,
_owner,
RawPointerEventType.LeaveWindow,
new Point(-1, -1), WindowsKeyboardDevice.Instance.Modifiers);
new Point(-1, -1),
WindowsKeyboardDevice.Instance.Modifiers);
break;
}
@ -386,16 +386,24 @@ namespace Avalonia.Win32
case WindowsMessage.WM_POINTERDEVICECHANGE:
{
//notifies about changes in the settings of a monitor that has a digitizer attached to it.
//https://docs.microsoft.com/en-us/previous-versions/windows/desktop/inputmsg/wm-pointerdevicechange
break;
}
case WindowsMessage.WM_POINTERDEVICEINRANGE:
case WindowsMessage.WM_POINTERDEVICEOUTOFRANGE:
{
//notifies about proximity of pointer device to the digitizer.
//contains pointer id and proximity.
//https://docs.microsoft.com/en-us/previous-versions/windows/desktop/inputmsg/wm-pointerdeviceinrange
break;
}
case WindowsMessage.WM_NCPOINTERUPDATE:
case WindowsMessage.WM_NCPOINTERDOWN:
case WindowsMessage.WM_NCPOINTERUP:
{
//NC stands for non-client area - window header and window border
break;
}
@ -407,60 +415,79 @@ namespace Avalonia.Win32
break;
}
case WindowsMessage.WM_POINTERENTER:
case WindowsMessage.WM_POINTERLEAVE:
{
//this is not handled by WM_MOUSEENTER so I think there is no need to handle this too.
//but we can detect a new pointer by this message and calling IS_POINTER_NEW_WPARAM
//note: by using a pen there can be a pointer leave or enter inside a window coords
//when you are just lift up the pen above the display
break;
}
case WindowsMessage.WM_POINTERACTIVATE:
case WindowsMessage.WM_POINTERCAPTURECHANGED:
case WindowsMessage.WM_POINTERLEAVE:
{
GetDeviceInfo(wParam, out var device, out var info);
var point = PointToClient(PointFromLParam(lParam));
e = new RawPointerEventArgs(
device,
timestamp,
_owner,
RawPointerEventType.LeaveWindow,
point,
WindowsKeyboardDevice.Instance.Modifiers);
break;
}
case WindowsMessage.WM_TOUCHHITTESTING:
case WindowsMessage.WM_POINTERACTIVATE:
{
//occurs when a pointer activates an inactive window.
//we should handle this and return PA_ACTIVATE or PA_NOACTIVATE
//https://docs.microsoft.com/en-us/previous-versions/windows/desktop/inputmsg/wm-pointeractivate
break;
}
case WindowsMessage.WM_POINTERCAPTURECHANGED:
{
_mouseDevice.Capture(null);
return IntPtr.Zero;
}
case WindowsMessage.WM_POINTERWHEEL:
{
var pointerId = ToPointerId(wParam);
GetPointerType(pointerId, out var type);
IInputDevice device;
switch (type)
{
case PointerInputType.PT_PEN:
device = _penDevice;
break;
case PointerInputType.PT_TOUCH:
device = _touchDevice;
break;
default:
device = _mouseDevice;
break;
}
GetDeviceInfo(wParam, out var device, out var info);
var delta = GetWheelDelta(wParam);
var point = PointFromLParam(lParam);
e = new RawMouseWheelEventArgs(
device,
timestamp,
_owner,
PointToClient(point),
new Vector(0, delta / wheelDelta),
GetMouseModifiers(wParam));
var point = PointToClient(PointFromLParam(lParam));
var modifiers = GetInputModifiers(info.dwKeyStates);
var delta = new Vector(0, GetWheelDelta(wParam) / wheelDelta);
e = new RawMouseWheelEventArgs(device, timestamp, _owner, point, delta, modifiers);
break;
}
case WindowsMessage.WM_POINTERHWHEEL:
{
GetDeviceInfo(wParam, out var device, out var info);
var point = PointToClient(PointFromLParam(lParam));
var modifiers = GetInputModifiers(info.dwKeyStates);
var delta = new Vector(GetWheelDelta(wParam) / wheelDelta, 0);
e = new RawMouseWheelEventArgs(device, timestamp, _owner, point, delta, modifiers);
break;
}
case WindowsMessage.WM_POINTERHITTEST:
case WindowsMessage.DM_POINTERHITTEST:
{
//DM stands for direct manipulation.
//https://docs.microsoft.com/en-us/previous-versions/windows/desktop/directmanipulation/direct-manipulation-portal
break;
}
case WindowsMessage.WM_TOUCHHITTESTING:
{
//This is to determine the most probable touch target.
//provides an input bounding box and receives hit proximity
//https://docs.microsoft.com/en-us/previous-versions/windows/desktop/inputmsg/wm-touchhittesting
//https://docs.microsoft.com/en-us/windows/win32/api/winuser/ns-winuser-touch_hit_testing_input
break;
}
case WindowsMessage.WM_PARENTNOTIFY:
{
//This message is sent in a dialog scenarios. Contains mouse position in an old-way,
//but listed in the wm_pointer reference
//https://docs.microsoft.com/en-us/previous-versions/windows/desktop/inputmsg/wm-parentnotify
break;
}
@ -687,13 +714,36 @@ namespace Avalonia.Win32
}
}
private void GetDeviceInfo(IntPtr wParam, out IInputDevice device, out POINTER_INFO info)
{
var pointerId = ToPointerId(wParam);
GetPointerType(pointerId, out var type);//ToDo we can cache this and invalidate in WM_POINTERDEVICECHANGE
switch (type)
{
case PointerInputType.PT_PEN:
device = _penDevice;
GetPointerPenInfo(pointerId, out var penInfo);
info = penInfo.pointerInfo;
break;
case PointerInputType.PT_TOUCH:
device = _touchDevice;
GetPointerTouchInfo(pointerId, out var touchInfo);
info = touchInfo.pointerInfo;
break;
default:
device = _mouseDevice;
GetPointerInfo(pointerId, out info);
break;
}
}
public static uint GetWheelDelta(IntPtr wParam) => HIWORD(wParam);
public static uint ToPointerId(IntPtr wParam) => LOWORD(wParam);
public static uint LOWORD(IntPtr param) => (uint)param & 0xffff;
public static uint HIWORD(IntPtr param) => (uint)param >> 16;
public bool BelowWin8 => Win32Platform.WindowsVersion < PlatformConstants.Windows8;
public readonly bool BelowWin8 = Win32Platform.WindowsVersion < PlatformConstants.Windows8;
private void UpdateInputMethod(IntPtr hkl)
{
@ -747,6 +797,11 @@ namespace Avalonia.Win32
private static RawInputModifiers GetMouseModifiers(IntPtr wParam)
{
var keys = (ModifierKeys)ToInt32(wParam);
return GetInputModifiers(keys);
}
private static RawInputModifiers GetInputModifiers(ModifierKeys keys)
{
var modifiers = WindowsKeyboardDevice.Instance.Modifiers;
if (keys.HasAllFlags(ModifierKeys.MK_LBUTTON))

2
src/Windows/Avalonia.Win32/WindowImpl.cs
View File

@ -76,7 +76,7 @@ namespace Avalonia.Win32
private bool _multitouch;
private IInputRoot _owner;
private WindowProperties _windowProperties;
private bool _trackingMouse;
private bool _trackingMouse;//ToDo - there is something missed. Needs investigation @Steven Kirk
private bool _topmost;
private double _scaling = 1;
private WindowState _showWindowState;

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