diff --git a/src/Windows/Avalonia.Win32/WindowImpl.AppWndProc.cs b/src/Windows/Avalonia.Win32/WindowImpl.AppWndProc.cs new file mode 100644 index 0000000000..b81634dce0 --- /dev/null +++ b/src/Windows/Avalonia.Win32/WindowImpl.AppWndProc.cs @@ -0,0 +1,518 @@ +using System; +using System.Diagnostics.CodeAnalysis; +using System.Runtime.InteropServices; +using Avalonia.Controls; +using Avalonia.Input; +using Avalonia.Input.Raw; +using Avalonia.Win32.Input; +using static Avalonia.Win32.Interop.UnmanagedMethods; + +namespace Avalonia.Win32 +{ + public partial class WindowImpl + { + [SuppressMessage("Microsoft.StyleCop.CSharp.NamingRules", "SA1305:FieldNamesMustNotUseHungarianNotation", + Justification = "Using Win32 naming for consistency.")] + protected virtual unsafe IntPtr AppWndProc(IntPtr hWnd, uint msg, IntPtr wParam, IntPtr lParam) + { + const double wheelDelta = 120.0; + uint timestamp = unchecked((uint)GetMessageTime()); + + RawInputEventArgs e = null; + + switch ((WindowsMessage)msg) + { + case WindowsMessage.WM_ACTIVATE: + { + var wa = (WindowActivate)(ToInt32(wParam) & 0xffff); + + switch (wa) + { + case WindowActivate.WA_ACTIVE: + case WindowActivate.WA_CLICKACTIVE: + { + Activated?.Invoke(); + break; + } + + case WindowActivate.WA_INACTIVE: + { + Deactivated?.Invoke(); + break; + } + } + + return IntPtr.Zero; + } + + case WindowsMessage.WM_NCCALCSIZE: + { + if (ToInt32(wParam) == 1 && !HasFullDecorations || _isClientAreaExtended) + { + return IntPtr.Zero; + } + + break; + } + + case WindowsMessage.WM_CLOSE: + { + bool? preventClosing = Closing?.Invoke(); + if (preventClosing == true) + { + return IntPtr.Zero; + } + + break; + } + + case WindowsMessage.WM_DESTROY: + { + //Window doesn't exist anymore + _hwnd = IntPtr.Zero; + //Remove root reference to this class, so unmanaged delegate can be collected + s_instances.Remove(this); + Closed?.Invoke(); + + _mouseDevice.Dispose(); + _touchDevice?.Dispose(); + //Free other resources + Dispose(); + return IntPtr.Zero; + } + + case WindowsMessage.WM_DPICHANGED: + { + var dpi = ToInt32(wParam) & 0xffff; + var newDisplayRect = Marshal.PtrToStructure(lParam); + _scaling = dpi / 96.0; + ScalingChanged?.Invoke(_scaling); + SetWindowPos(hWnd, + IntPtr.Zero, + newDisplayRect.left, + newDisplayRect.top, + newDisplayRect.right - newDisplayRect.left, + newDisplayRect.bottom - newDisplayRect.top, + SetWindowPosFlags.SWP_NOZORDER | + SetWindowPosFlags.SWP_NOACTIVATE); + return IntPtr.Zero; + } + + case WindowsMessage.WM_KEYDOWN: + case WindowsMessage.WM_SYSKEYDOWN: + { + e = new RawKeyEventArgs( + WindowsKeyboardDevice.Instance, + timestamp, + _owner, + RawKeyEventType.KeyDown, + KeyInterop.KeyFromVirtualKey(ToInt32(wParam), ToInt32(lParam)), + WindowsKeyboardDevice.Instance.Modifiers); + break; + } + + case WindowsMessage.WM_MENUCHAR: + { + // mute the system beep + return (IntPtr)((int)MenuCharParam.MNC_CLOSE << 16); + } + + case WindowsMessage.WM_KEYUP: + case WindowsMessage.WM_SYSKEYUP: + { + e = new RawKeyEventArgs( + WindowsKeyboardDevice.Instance, + timestamp, + _owner, + RawKeyEventType.KeyUp, + KeyInterop.KeyFromVirtualKey(ToInt32(wParam), ToInt32(lParam)), + WindowsKeyboardDevice.Instance.Modifiers); + break; + } + case WindowsMessage.WM_CHAR: + { + // Ignore control chars + if (ToInt32(wParam) >= 32) + { + e = new RawTextInputEventArgs(WindowsKeyboardDevice.Instance, timestamp, _owner, + new string((char)ToInt32(wParam), 1)); + } + + break; + } + + case WindowsMessage.WM_LBUTTONDOWN: + case WindowsMessage.WM_RBUTTONDOWN: + case WindowsMessage.WM_MBUTTONDOWN: + case WindowsMessage.WM_XBUTTONDOWN: + { + if (ShouldIgnoreTouchEmulatedMessage()) + { + break; + } + + e = new RawPointerEventArgs( + _mouseDevice, + timestamp, + _owner, + (WindowsMessage)msg switch + { + WindowsMessage.WM_LBUTTONDOWN => RawPointerEventType.LeftButtonDown, + WindowsMessage.WM_RBUTTONDOWN => RawPointerEventType.RightButtonDown, + WindowsMessage.WM_MBUTTONDOWN => RawPointerEventType.MiddleButtonDown, + WindowsMessage.WM_XBUTTONDOWN => + HighWord(ToInt32(wParam)) == 1 ? + RawPointerEventType.XButton1Down : + RawPointerEventType.XButton2Down + }, + DipFromLParam(lParam), GetMouseModifiers(wParam)); + break; + } + + case WindowsMessage.WM_LBUTTONUP: + case WindowsMessage.WM_RBUTTONUP: + case WindowsMessage.WM_MBUTTONUP: + case WindowsMessage.WM_XBUTTONUP: + { + if (ShouldIgnoreTouchEmulatedMessage()) + { + break; + } + + e = new RawPointerEventArgs( + _mouseDevice, + timestamp, + _owner, + (WindowsMessage)msg switch + { + WindowsMessage.WM_LBUTTONUP => RawPointerEventType.LeftButtonUp, + WindowsMessage.WM_RBUTTONUP => RawPointerEventType.RightButtonUp, + WindowsMessage.WM_MBUTTONUP => RawPointerEventType.MiddleButtonUp, + WindowsMessage.WM_XBUTTONUP => + HighWord(ToInt32(wParam)) == 1 ? + RawPointerEventType.XButton1Up : + RawPointerEventType.XButton2Up, + }, + DipFromLParam(lParam), GetMouseModifiers(wParam)); + break; + } + + case WindowsMessage.WM_MOUSEMOVE: + { + if (ShouldIgnoreTouchEmulatedMessage()) + { + break; + } + + if (!_trackingMouse) + { + var tm = new TRACKMOUSEEVENT + { + cbSize = Marshal.SizeOf(), + dwFlags = 2, + hwndTrack = _hwnd, + dwHoverTime = 0, + }; + + TrackMouseEvent(ref tm); + } + + e = new RawPointerEventArgs( + _mouseDevice, + timestamp, + _owner, + RawPointerEventType.Move, + DipFromLParam(lParam), GetMouseModifiers(wParam)); + + break; + } + + case WindowsMessage.WM_MOUSEWHEEL: + { + e = new RawMouseWheelEventArgs( + _mouseDevice, + timestamp, + _owner, + PointToClient(PointFromLParam(lParam)), + new Vector(0, (ToInt32(wParam) >> 16) / wheelDelta), GetMouseModifiers(wParam)); + break; + } + + case WindowsMessage.WM_MOUSEHWHEEL: + { + e = new RawMouseWheelEventArgs( + _mouseDevice, + timestamp, + _owner, + PointToClient(PointFromLParam(lParam)), + new Vector(-(ToInt32(wParam) >> 16) / wheelDelta, 0), GetMouseModifiers(wParam)); + break; + } + + case WindowsMessage.WM_MOUSELEAVE: + { + _trackingMouse = false; + e = new RawPointerEventArgs( + _mouseDevice, + timestamp, + _owner, + RawPointerEventType.LeaveWindow, + new Point(-1, -1), WindowsKeyboardDevice.Instance.Modifiers); + break; + } + + case WindowsMessage.WM_NCLBUTTONDOWN: + case WindowsMessage.WM_NCRBUTTONDOWN: + case WindowsMessage.WM_NCMBUTTONDOWN: + case WindowsMessage.WM_NCXBUTTONDOWN: + { + e = new RawPointerEventArgs( + _mouseDevice, + timestamp, + _owner, + (WindowsMessage)msg switch + { + WindowsMessage.WM_NCLBUTTONDOWN => RawPointerEventType + .NonClientLeftButtonDown, + WindowsMessage.WM_NCRBUTTONDOWN => RawPointerEventType.RightButtonDown, + WindowsMessage.WM_NCMBUTTONDOWN => RawPointerEventType.MiddleButtonDown, + WindowsMessage.WM_NCXBUTTONDOWN => + HighWord(ToInt32(wParam)) == 1 ? + RawPointerEventType.XButton1Down : + RawPointerEventType.XButton2Down, + }, + PointToClient(PointFromLParam(lParam)), GetMouseModifiers(wParam)); + break; + } + case WindowsMessage.WM_TOUCH: + { + var touchInputCount = wParam.ToInt32(); + + var pTouchInputs = stackalloc TOUCHINPUT[touchInputCount]; + var touchInputs = new Span(pTouchInputs, touchInputCount); + + if (GetTouchInputInfo(lParam, (uint)touchInputCount, pTouchInputs, Marshal.SizeOf())) + { + foreach (var touchInput in touchInputs) + { + Input?.Invoke(new RawTouchEventArgs(_touchDevice, touchInput.Time, + _owner, + touchInput.Flags.HasFlagCustom(TouchInputFlags.TOUCHEVENTF_UP) ? + RawPointerEventType.TouchEnd : + touchInput.Flags.HasFlagCustom(TouchInputFlags.TOUCHEVENTF_DOWN) ? + RawPointerEventType.TouchBegin : + RawPointerEventType.TouchUpdate, + PointToClient(new PixelPoint(touchInput.X / 100, touchInput.Y / 100)), + WindowsKeyboardDevice.Instance.Modifiers, + touchInput.Id)); + } + + CloseTouchInputHandle(lParam); + return IntPtr.Zero; + } + + break; + } + case WindowsMessage.WM_NCPAINT: + { + if (!HasFullDecorations) + { + return IntPtr.Zero; + } + + break; + } + + case WindowsMessage.WM_NCACTIVATE: + { + if (!HasFullDecorations) + { + return new IntPtr(1); + } + + break; + } + + case WindowsMessage.WM_PAINT: + { + using (_rendererLock.Lock()) + { + if (BeginPaint(_hwnd, out PAINTSTRUCT ps) != IntPtr.Zero) + { + var f = Scaling; + var r = ps.rcPaint; + Paint?.Invoke(new Rect(r.left / f, r.top / f, (r.right - r.left) / f, + (r.bottom - r.top) / f)); + EndPaint(_hwnd, ref ps); + } + } + + return IntPtr.Zero; + } + + case WindowsMessage.WM_SIZE: + { + using (_rendererLock.Lock()) + { + // Do nothing here, just block until the pending frame render is completed on the render thread + } + + var size = (SizeCommand)wParam; + + if (Resized != null && + (size == SizeCommand.Restored || + size == SizeCommand.Maximized)) + { + var clientSize = new Size(ToInt32(lParam) & 0xffff, ToInt32(lParam) >> 16); + Resized(clientSize / Scaling); + } + + var windowState = size == SizeCommand.Maximized ? + WindowState.Maximized : + (size == SizeCommand.Minimized ? WindowState.Minimized : WindowState.Normal); + + if (windowState != _lastWindowState) + { + _lastWindowState = windowState; + WindowStateChanged?.Invoke(windowState); + } + + return IntPtr.Zero; + } + + case WindowsMessage.WM_MOVE: + { + PositionChanged?.Invoke(new PixelPoint((short)(ToInt32(lParam) & 0xffff), + (short)(ToInt32(lParam) >> 16))); + return IntPtr.Zero; + } + + case WindowsMessage.WM_GETMINMAXINFO: + { + MINMAXINFO mmi = Marshal.PtrToStructure(lParam); + + if (_minSize.Width > 0) + { + mmi.ptMinTrackSize.X = + (int)((_minSize.Width * Scaling) + BorderThickness.Left + BorderThickness.Right); + } + + if (_minSize.Height > 0) + { + mmi.ptMinTrackSize.Y = + (int)((_minSize.Height * Scaling) + BorderThickness.Top + BorderThickness.Bottom); + } + + if (!double.IsInfinity(_maxSize.Width) && _maxSize.Width > 0) + { + mmi.ptMaxTrackSize.X = + (int)((_maxSize.Width * Scaling) + BorderThickness.Left + BorderThickness.Right); + } + + if (!double.IsInfinity(_maxSize.Height) && _maxSize.Height > 0) + { + mmi.ptMaxTrackSize.Y = + (int)((_maxSize.Height * Scaling) + BorderThickness.Top + BorderThickness.Bottom); + } + + Marshal.StructureToPtr(mmi, lParam, true); + return IntPtr.Zero; + } + + case WindowsMessage.WM_DISPLAYCHANGE: + { + (Screen as ScreenImpl)?.InvalidateScreensCache(); + return IntPtr.Zero; + } + } + +#if USE_MANAGED_DRAG + if (_managedDrag.PreprocessInputEvent(ref e)) + return UnmanagedMethods.DefWindowProc(hWnd, msg, wParam, lParam); +#endif + + if (e != null && Input != null) + { + Input(e); + + if (e.Handled) + { + return IntPtr.Zero; + } + } + + using (_rendererLock.Lock()) + { + return DefWindowProc(hWnd, msg, wParam, lParam); + } + } + + private static int ToInt32(IntPtr ptr) + { + if (IntPtr.Size == 4) + return ptr.ToInt32(); + + return (int)(ptr.ToInt64() & 0xffffffff); + } + + private static int HighWord(int param) => param >> 16; + + private Point DipFromLParam(IntPtr lParam) + { + return new Point((short)(ToInt32(lParam) & 0xffff), (short)(ToInt32(lParam) >> 16)) / Scaling; + } + + private PixelPoint PointFromLParam(IntPtr lParam) + { + return new PixelPoint((short)(ToInt32(lParam) & 0xffff), (short)(ToInt32(lParam) >> 16)); + } + + private bool ShouldIgnoreTouchEmulatedMessage() + { + if (!_multitouch) + { + return false; + } + + // MI_WP_SIGNATURE + // https://docs.microsoft.com/en-us/windows/win32/tablet/system-events-and-mouse-messages + const long marker = 0xFF515700L; + + var info = GetMessageExtraInfo().ToInt64(); + return (info & marker) == marker; + } + + private static RawInputModifiers GetMouseModifiers(IntPtr wParam) + { + var keys = (ModifierKeys)ToInt32(wParam); + var modifiers = WindowsKeyboardDevice.Instance.Modifiers; + + if (keys.HasFlagCustom(ModifierKeys.MK_LBUTTON)) + { + modifiers |= RawInputModifiers.LeftMouseButton; + } + + if (keys.HasFlagCustom(ModifierKeys.MK_RBUTTON)) + { + modifiers |= RawInputModifiers.RightMouseButton; + } + + if (keys.HasFlagCustom(ModifierKeys.MK_MBUTTON)) + { + modifiers |= RawInputModifiers.MiddleMouseButton; + } + + if (keys.HasFlagCustom(ModifierKeys.MK_XBUTTON1)) + { + modifiers |= RawInputModifiers.XButton1MouseButton; + } + + if (keys.HasFlagCustom(ModifierKeys.MK_XBUTTON2)) + { + modifiers |= RawInputModifiers.XButton2MouseButton; + } + + return modifiers; + } + } +} diff --git a/src/Windows/Avalonia.Win32/WindowImpl.CustomCaptionProc.cs b/src/Windows/Avalonia.Win32/WindowImpl.CustomCaptionProc.cs new file mode 100644 index 0000000000..faf83c6c9b --- /dev/null +++ b/src/Windows/Avalonia.Win32/WindowImpl.CustomCaptionProc.cs @@ -0,0 +1,117 @@ +using System; +using System.Collections.Generic; +using System.Text; + +namespace Avalonia.Win32 +{ + public partial class WindowImpl + { + // Hit test the frame for resizing and moving. + HitTestValues HitTestNCA(IntPtr hWnd, IntPtr wParam, IntPtr lParam) + { + // Get the point coordinates for the hit test. + var ptMouse = PointFromLParam(lParam); + + // Get the window rectangle. + GetWindowRect(hWnd, out var rcWindow); + + // Get the frame rectangle, adjusted for the style without a caption. + RECT rcFrame = new RECT(); + AdjustWindowRectEx(ref rcFrame, (uint)(WindowStyles.WS_OVERLAPPEDWINDOW & ~WindowStyles.WS_CAPTION), false, 0); + + RECT border_thickness = new RECT(); + if (GetStyle().HasFlag(WindowStyles.WS_THICKFRAME)) + { + AdjustWindowRectEx(ref border_thickness, (uint)(GetStyle()), false, 0); + border_thickness.left *= -1; + border_thickness.top *= -1; + } + else if (GetStyle().HasFlag(WindowStyles.WS_BORDER)) + { + border_thickness = new RECT { bottom = 1, left = 1, right = 1, top = 1 }; + } + + // Determine if the hit test is for resizing. Default middle (1,1). + ushort uRow = 1; + ushort uCol = 1; + bool fOnResizeBorder = false; + + // Determine if the point is at the top or bottom of the window. + if (ptMouse.Y >= rcWindow.top && ptMouse.Y < rcWindow.top + border_thickness.top) + { + fOnResizeBorder = (ptMouse.Y < (rcWindow.top - rcFrame.top)); + uRow = 0; + } + else if (ptMouse.Y < rcWindow.bottom && ptMouse.Y >= rcWindow.bottom - border_thickness.bottom) + { + uRow = 2; + } + + // Determine if the point is at the left or right of the window. + if (ptMouse.X >= rcWindow.left && ptMouse.X < rcWindow.left + border_thickness.left) + { + uCol = 0; // left side + } + else if (ptMouse.X < rcWindow.right && ptMouse.X >= rcWindow.right - border_thickness.right) + { + uCol = 2; // right side + } + + // Hit test (HTTOPLEFT, ... HTBOTTOMRIGHT) + HitTestValues[][] hitTests = new[] + { + new []{ HitTestValues.HTTOPLEFT, fOnResizeBorder ? HitTestValues.HTTOP : HitTestValues.HTCAPTION, HitTestValues.HTTOPRIGHT }, + new []{ HitTestValues.HTLEFT, HitTestValues.HTNOWHERE, HitTestValues.HTRIGHT }, + new []{ HitTestValues.HTBOTTOMLEFT, HitTestValues.HTBOTTOM, HitTestValues.HTBOTTOMRIGHT }, + }; + + return hitTests[uRow][uCol]; + } + + protected virtual IntPtr CustomCaptionProc(IntPtr hWnd, uint msg, IntPtr wParam, IntPtr lParam, ref bool callDwp) + { + IntPtr lRet = IntPtr.Zero; + + callDwp = !DwmDefWindowProc(hWnd, msg, wParam, lParam, ref lRet); + + switch ((WindowsMessage)msg) + { + case WindowsMessage.WM_NCHITTEST: + if (lRet == IntPtr.Zero) + { + lRet = (IntPtr)HitTestNCA(hWnd, wParam, lParam); + + uint timestamp = unchecked((uint)GetMessageTime()); + + if (((HitTestValues)lRet) == HitTestValues.HTCAPTION) + { + var position = PointToClient(PointFromLParam(lParam)); + + var visual = (_owner as Window).Renderer.HitTestFirst(position, _owner as Window, x => + { + if (x is IInputElement ie && !ie.IsHitTestVisible) + { + return false; + } + + return true; + }); + + if (visual != null) + { + lRet = (IntPtr)HitTestValues.HTCLIENT; + } + } + + if (((HitTestValues)lRet) != HitTestValues.HTNOWHERE) + { + callDwp = false; + } + } + break; + } + + return lRet; + } + } +} diff --git a/src/Windows/Avalonia.Win32/WindowImpl.WndProc.cs b/src/Windows/Avalonia.Win32/WindowImpl.WndProc.cs index 067d9c8068..bb6ab180cf 100644 --- a/src/Windows/Avalonia.Win32/WindowImpl.WndProc.cs +++ b/src/Windows/Avalonia.Win32/WindowImpl.WndProc.cs @@ -12,139 +12,6 @@ using static Avalonia.Win32.Interop.UnmanagedMethods; namespace Avalonia.Win32 { - public partial class WindowImpl - { - // Hit test the frame for resizing and moving. - HitTestValues HitTestNCA(IntPtr hWnd, IntPtr wParam, IntPtr lParam) - { - // Get the point coordinates for the hit test. - var ptMouse = PointFromLParam(lParam); - - // Get the window rectangle. - GetWindowRect(hWnd, out var rcWindow); - - // Get the frame rectangle, adjusted for the style without a caption. - RECT rcFrame = new RECT(); - AdjustWindowRectEx(ref rcFrame, (uint)(WindowStyles.WS_OVERLAPPEDWINDOW & ~WindowStyles.WS_CAPTION), false, 0); - - RECT border_thickness = new RECT(); - if (GetStyle().HasFlag(WindowStyles.WS_THICKFRAME)) - { - AdjustWindowRectEx(ref border_thickness, (uint)(GetStyle()), false, 0); - border_thickness.left *= -1; - border_thickness.top *= -1; - } - else if (GetStyle().HasFlag(WindowStyles.WS_BORDER)) - { - border_thickness = new RECT { bottom = 1, left = 1, right = 1, top = 1 }; - } - - // Determine if the hit test is for resizing. Default middle (1,1). - ushort uRow = 1; - ushort uCol = 1; - bool fOnResizeBorder = false; - - // Determine if the point is at the top or bottom of the window. - if (ptMouse.Y >= rcWindow.top && ptMouse.Y < rcWindow.top + border_thickness.top) - { - fOnResizeBorder = (ptMouse.Y < (rcWindow.top - rcFrame.top)); - uRow = 0; - } - else if (ptMouse.Y < rcWindow.bottom && ptMouse.Y >= rcWindow.bottom - border_thickness.bottom) - { - uRow = 2; - } - - // Determine if the point is at the left or right of the window. - if (ptMouse.X >= rcWindow.left && ptMouse.X < rcWindow.left + border_thickness.left) - { - uCol = 0; // left side - } - else if (ptMouse.X < rcWindow.right && ptMouse.X >= rcWindow.right - border_thickness.right) - { - uCol = 2; // right side - } - - // Hit test (HTTOPLEFT, ... HTBOTTOMRIGHT) - HitTestValues[][] hitTests = new[] - { - new []{ HitTestValues.HTTOPLEFT, fOnResizeBorder ? HitTestValues.HTTOP : HitTestValues.HTCAPTION, HitTestValues.HTTOPRIGHT }, - new []{ HitTestValues.HTLEFT, HitTestValues.HTNOWHERE, HitTestValues.HTRIGHT }, - new []{ HitTestValues.HTBOTTOMLEFT, HitTestValues.HTBOTTOM, HitTestValues.HTBOTTOMRIGHT }, - }; - - return hitTests[uRow][uCol]; - } - - protected virtual unsafe IntPtr CustomCaptionProc(IntPtr hWnd, uint msg, IntPtr wParam, IntPtr lParam, ref bool callDwp) - { - IntPtr lRet = IntPtr.Zero; - - callDwp = !DwmDefWindowProc(hWnd, msg, wParam, lParam, ref lRet); - - switch ((WindowsMessage)msg) - { - //case WindowsMessage.WM_ACTIVATE: - // { - // if (!_isClientAreaExtended) - // { - // ExtendClientArea(); - // } - // lRet = IntPtr.Zero; - // callDwp = true; - // break; - // } - - case WindowsMessage.WM_NCCALCSIZE: - { - if (ToInt32(wParam) == 1) - { - lRet = IntPtr.Zero; - callDwp = false; - } - break; - } - - case WindowsMessage.WM_NCHITTEST: - if (lRet == IntPtr.Zero) - { - lRet = (IntPtr)HitTestNCA(hWnd, wParam, lParam); - - uint timestamp = unchecked((uint)GetMessageTime()); - - if (((HitTestValues)lRet) == HitTestValues.HTCAPTION) - { - var position = PointToClient(PointFromLParam(lParam)); - - var visual = (_owner as Window).Renderer.HitTestFirst(position, _owner as Window, x => - { - if(x is IInputElement ie && !ie.IsHitTestVisible) - { - return false; - } - - return true; - }); - - if(visual != null) - { - lRet = (IntPtr)HitTestValues.HTCLIENT; - } - - } - - if (((HitTestValues)lRet) != HitTestValues.HTNOWHERE) - { - callDwp = false; - } - } - break; - } - - return lRet; - } - } - public partial class WindowImpl { protected virtual unsafe IntPtr WndProc(IntPtr hWnd, uint msg, IntPtr wParam, IntPtr lParam) @@ -152,7 +19,7 @@ namespace Avalonia.Win32 IntPtr lRet = IntPtr.Zero; bool callDwp = true; - if (DwmIsCompositionEnabled(out bool enabled) == 0) + if (_isClientAreaExtended) { lRet = CustomCaptionProc(hWnd, msg, wParam, lParam, ref callDwp); } @@ -165,511 +32,4 @@ namespace Avalonia.Win32 return lRet; } } - - public partial class WindowImpl - { - [SuppressMessage("Microsoft.StyleCop.CSharp.NamingRules", "SA1305:FieldNamesMustNotUseHungarianNotation", - Justification = "Using Win32 naming for consistency.")] - protected virtual unsafe IntPtr AppWndProc(IntPtr hWnd, uint msg, IntPtr wParam, IntPtr lParam) - { - const double wheelDelta = 120.0; - uint timestamp = unchecked((uint)GetMessageTime()); - - RawInputEventArgs e = null; - - switch ((WindowsMessage)msg) - { - case WindowsMessage.WM_ACTIVATE: - { - var wa = (WindowActivate)(ToInt32(wParam) & 0xffff); - - switch (wa) - { - case WindowActivate.WA_ACTIVE: - case WindowActivate.WA_CLICKACTIVE: - { - Activated?.Invoke(); - break; - } - - case WindowActivate.WA_INACTIVE: - { - Deactivated?.Invoke(); - break; - } - } - - return IntPtr.Zero; - } - - case WindowsMessage.WM_NCCALCSIZE: - { - if (ToInt32(wParam) == 1 && !HasFullDecorations) - { - return IntPtr.Zero; - } - - break; - } - - case WindowsMessage.WM_CLOSE: - { - bool? preventClosing = Closing?.Invoke(); - if (preventClosing == true) - { - return IntPtr.Zero; - } - - break; - } - - case WindowsMessage.WM_DESTROY: - { - //Window doesn't exist anymore - _hwnd = IntPtr.Zero; - //Remove root reference to this class, so unmanaged delegate can be collected - s_instances.Remove(this); - Closed?.Invoke(); - - _mouseDevice.Dispose(); - _touchDevice?.Dispose(); - //Free other resources - Dispose(); - return IntPtr.Zero; - } - - case WindowsMessage.WM_DPICHANGED: - { - var dpi = ToInt32(wParam) & 0xffff; - var newDisplayRect = Marshal.PtrToStructure(lParam); - _scaling = dpi / 96.0; - ScalingChanged?.Invoke(_scaling); - SetWindowPos(hWnd, - IntPtr.Zero, - newDisplayRect.left, - newDisplayRect.top, - newDisplayRect.right - newDisplayRect.left, - newDisplayRect.bottom - newDisplayRect.top, - SetWindowPosFlags.SWP_NOZORDER | - SetWindowPosFlags.SWP_NOACTIVATE); - return IntPtr.Zero; - } - - case WindowsMessage.WM_KEYDOWN: - case WindowsMessage.WM_SYSKEYDOWN: - { - e = new RawKeyEventArgs( - WindowsKeyboardDevice.Instance, - timestamp, - _owner, - RawKeyEventType.KeyDown, - KeyInterop.KeyFromVirtualKey(ToInt32(wParam), ToInt32(lParam)), - WindowsKeyboardDevice.Instance.Modifiers); - break; - } - - case WindowsMessage.WM_MENUCHAR: - { - // mute the system beep - return (IntPtr)((int)MenuCharParam.MNC_CLOSE << 16); - } - - case WindowsMessage.WM_KEYUP: - case WindowsMessage.WM_SYSKEYUP: - { - e = new RawKeyEventArgs( - WindowsKeyboardDevice.Instance, - timestamp, - _owner, - RawKeyEventType.KeyUp, - KeyInterop.KeyFromVirtualKey(ToInt32(wParam), ToInt32(lParam)), - WindowsKeyboardDevice.Instance.Modifiers); - break; - } - case WindowsMessage.WM_CHAR: - { - // Ignore control chars - if (ToInt32(wParam) >= 32) - { - e = new RawTextInputEventArgs(WindowsKeyboardDevice.Instance, timestamp, _owner, - new string((char)ToInt32(wParam), 1)); - } - - break; - } - - case WindowsMessage.WM_LBUTTONDOWN: - case WindowsMessage.WM_RBUTTONDOWN: - case WindowsMessage.WM_MBUTTONDOWN: - case WindowsMessage.WM_XBUTTONDOWN: - { - if (ShouldIgnoreTouchEmulatedMessage()) - { - break; - } - - e = new RawPointerEventArgs( - _mouseDevice, - timestamp, - _owner, - (WindowsMessage)msg switch - { - WindowsMessage.WM_LBUTTONDOWN => RawPointerEventType.LeftButtonDown, - WindowsMessage.WM_RBUTTONDOWN => RawPointerEventType.RightButtonDown, - WindowsMessage.WM_MBUTTONDOWN => RawPointerEventType.MiddleButtonDown, - WindowsMessage.WM_XBUTTONDOWN => - HighWord(ToInt32(wParam)) == 1 ? - RawPointerEventType.XButton1Down : - RawPointerEventType.XButton2Down - }, - DipFromLParam(lParam), GetMouseModifiers(wParam)); - break; - } - - case WindowsMessage.WM_LBUTTONUP: - case WindowsMessage.WM_RBUTTONUP: - case WindowsMessage.WM_MBUTTONUP: - case WindowsMessage.WM_XBUTTONUP: - { - if (ShouldIgnoreTouchEmulatedMessage()) - { - break; - } - - e = new RawPointerEventArgs( - _mouseDevice, - timestamp, - _owner, - (WindowsMessage)msg switch - { - WindowsMessage.WM_LBUTTONUP => RawPointerEventType.LeftButtonUp, - WindowsMessage.WM_RBUTTONUP => RawPointerEventType.RightButtonUp, - WindowsMessage.WM_MBUTTONUP => RawPointerEventType.MiddleButtonUp, - WindowsMessage.WM_XBUTTONUP => - HighWord(ToInt32(wParam)) == 1 ? - RawPointerEventType.XButton1Up : - RawPointerEventType.XButton2Up, - }, - DipFromLParam(lParam), GetMouseModifiers(wParam)); - break; - } - - case WindowsMessage.WM_MOUSEMOVE: - { - if (ShouldIgnoreTouchEmulatedMessage()) - { - break; - } - - if (!_trackingMouse) - { - var tm = new TRACKMOUSEEVENT - { - cbSize = Marshal.SizeOf(), - dwFlags = 2, - hwndTrack = _hwnd, - dwHoverTime = 0, - }; - - TrackMouseEvent(ref tm); - } - - e = new RawPointerEventArgs( - _mouseDevice, - timestamp, - _owner, - RawPointerEventType.Move, - DipFromLParam(lParam), GetMouseModifiers(wParam)); - - break; - } - - case WindowsMessage.WM_MOUSEWHEEL: - { - e = new RawMouseWheelEventArgs( - _mouseDevice, - timestamp, - _owner, - PointToClient(PointFromLParam(lParam)), - new Vector(0, (ToInt32(wParam) >> 16) / wheelDelta), GetMouseModifiers(wParam)); - break; - } - - case WindowsMessage.WM_MOUSEHWHEEL: - { - e = new RawMouseWheelEventArgs( - _mouseDevice, - timestamp, - _owner, - PointToClient(PointFromLParam(lParam)), - new Vector(-(ToInt32(wParam) >> 16) / wheelDelta, 0), GetMouseModifiers(wParam)); - break; - } - - case WindowsMessage.WM_MOUSELEAVE: - { - _trackingMouse = false; - e = new RawPointerEventArgs( - _mouseDevice, - timestamp, - _owner, - RawPointerEventType.LeaveWindow, - new Point(-1, -1), WindowsKeyboardDevice.Instance.Modifiers); - break; - } - - case WindowsMessage.WM_NCLBUTTONDOWN: - case WindowsMessage.WM_NCRBUTTONDOWN: - case WindowsMessage.WM_NCMBUTTONDOWN: - case WindowsMessage.WM_NCXBUTTONDOWN: - { - e = new RawPointerEventArgs( - _mouseDevice, - timestamp, - _owner, - (WindowsMessage)msg switch - { - WindowsMessage.WM_NCLBUTTONDOWN => RawPointerEventType - .NonClientLeftButtonDown, - WindowsMessage.WM_NCRBUTTONDOWN => RawPointerEventType.RightButtonDown, - WindowsMessage.WM_NCMBUTTONDOWN => RawPointerEventType.MiddleButtonDown, - WindowsMessage.WM_NCXBUTTONDOWN => - HighWord(ToInt32(wParam)) == 1 ? - RawPointerEventType.XButton1Down : - RawPointerEventType.XButton2Down, - }, - PointToClient(PointFromLParam(lParam)), GetMouseModifiers(wParam)); - break; - } - case WindowsMessage.WM_TOUCH: - { - var touchInputCount = wParam.ToInt32(); - - var pTouchInputs = stackalloc TOUCHINPUT[touchInputCount]; - var touchInputs = new Span(pTouchInputs, touchInputCount); - - if (GetTouchInputInfo(lParam, (uint)touchInputCount, pTouchInputs, Marshal.SizeOf())) - { - foreach (var touchInput in touchInputs) - { - Input?.Invoke(new RawTouchEventArgs(_touchDevice, touchInput.Time, - _owner, - touchInput.Flags.HasFlagCustom(TouchInputFlags.TOUCHEVENTF_UP) ? - RawPointerEventType.TouchEnd : - touchInput.Flags.HasFlagCustom(TouchInputFlags.TOUCHEVENTF_DOWN) ? - RawPointerEventType.TouchBegin : - RawPointerEventType.TouchUpdate, - PointToClient(new PixelPoint(touchInput.X / 100, touchInput.Y / 100)), - WindowsKeyboardDevice.Instance.Modifiers, - touchInput.Id)); - } - - CloseTouchInputHandle(lParam); - return IntPtr.Zero; - } - - break; - } - case WindowsMessage.WM_NCPAINT: - { - if (!HasFullDecorations) - { - return IntPtr.Zero; - } - - break; - } - - case WindowsMessage.WM_NCACTIVATE: - { - if (!HasFullDecorations) - { - return new IntPtr(1); - } - - break; - } - - case WindowsMessage.WM_PAINT: - { - using (_rendererLock.Lock()) - { - if (BeginPaint(_hwnd, out PAINTSTRUCT ps) != IntPtr.Zero) - { - var f = Scaling; - var r = ps.rcPaint; - Paint?.Invoke(new Rect(r.left / f, r.top / f, (r.right - r.left) / f, - (r.bottom - r.top) / f)); - EndPaint(_hwnd, ref ps); - } - } - - return IntPtr.Zero; - } - - case WindowsMessage.WM_SIZE: - { - using (_rendererLock.Lock()) - { - // Do nothing here, just block until the pending frame render is completed on the render thread - } - - var size = (SizeCommand)wParam; - - if (Resized != null && - (size == SizeCommand.Restored || - size == SizeCommand.Maximized)) - { - var clientSize = new Size(ToInt32(lParam) & 0xffff, ToInt32(lParam) >> 16); - Resized(clientSize / Scaling); - } - - var windowState = size == SizeCommand.Maximized ? - WindowState.Maximized : - (size == SizeCommand.Minimized ? WindowState.Minimized : WindowState.Normal); - - if (windowState != _lastWindowState) - { - _lastWindowState = windowState; - WindowStateChanged?.Invoke(windowState); - } - - return IntPtr.Zero; - } - - case WindowsMessage.WM_MOVE: - { - PositionChanged?.Invoke(new PixelPoint((short)(ToInt32(lParam) & 0xffff), - (short)(ToInt32(lParam) >> 16))); - return IntPtr.Zero; - } - - case WindowsMessage.WM_GETMINMAXINFO: - { - MINMAXINFO mmi = Marshal.PtrToStructure(lParam); - - if (_minSize.Width > 0) - { - mmi.ptMinTrackSize.X = - (int)((_minSize.Width * Scaling) + BorderThickness.Left + BorderThickness.Right); - } - - if (_minSize.Height > 0) - { - mmi.ptMinTrackSize.Y = - (int)((_minSize.Height * Scaling) + BorderThickness.Top + BorderThickness.Bottom); - } - - if (!double.IsInfinity(_maxSize.Width) && _maxSize.Width > 0) - { - mmi.ptMaxTrackSize.X = - (int)((_maxSize.Width * Scaling) + BorderThickness.Left + BorderThickness.Right); - } - - if (!double.IsInfinity(_maxSize.Height) && _maxSize.Height > 0) - { - mmi.ptMaxTrackSize.Y = - (int)((_maxSize.Height * Scaling) + BorderThickness.Top + BorderThickness.Bottom); - } - - Marshal.StructureToPtr(mmi, lParam, true); - return IntPtr.Zero; - } - - case WindowsMessage.WM_DISPLAYCHANGE: - { - (Screen as ScreenImpl)?.InvalidateScreensCache(); - return IntPtr.Zero; - } - } - -#if USE_MANAGED_DRAG - if (_managedDrag.PreprocessInputEvent(ref e)) - return UnmanagedMethods.DefWindowProc(hWnd, msg, wParam, lParam); -#endif - - if (e != null && Input != null) - { - Input(e); - - if (e.Handled) - { - return IntPtr.Zero; - } - } - - using (_rendererLock.Lock()) - { - return DefWindowProc(hWnd, msg, wParam, lParam); - } - } - - private static int ToInt32(IntPtr ptr) - { - if (IntPtr.Size == 4) - return ptr.ToInt32(); - - return (int)(ptr.ToInt64() & 0xffffffff); - } - - private static int HighWord(int param) => param >> 16; - - private Point DipFromLParam(IntPtr lParam) - { - return new Point((short)(ToInt32(lParam) & 0xffff), (short)(ToInt32(lParam) >> 16)) / Scaling; - } - - private PixelPoint PointFromLParam(IntPtr lParam) - { - return new PixelPoint((short)(ToInt32(lParam) & 0xffff), (short)(ToInt32(lParam) >> 16)); - } - - private bool ShouldIgnoreTouchEmulatedMessage() - { - if (!_multitouch) - { - return false; - } - - // MI_WP_SIGNATURE - // https://docs.microsoft.com/en-us/windows/win32/tablet/system-events-and-mouse-messages - const long marker = 0xFF515700L; - - var info = GetMessageExtraInfo().ToInt64(); - return (info & marker) == marker; - } - - private static RawInputModifiers GetMouseModifiers(IntPtr wParam) - { - var keys = (ModifierKeys)ToInt32(wParam); - var modifiers = WindowsKeyboardDevice.Instance.Modifiers; - - if (keys.HasFlagCustom(ModifierKeys.MK_LBUTTON)) - { - modifiers |= RawInputModifiers.LeftMouseButton; - } - - if (keys.HasFlagCustom(ModifierKeys.MK_RBUTTON)) - { - modifiers |= RawInputModifiers.RightMouseButton; - } - - if (keys.HasFlagCustom(ModifierKeys.MK_MBUTTON)) - { - modifiers |= RawInputModifiers.MiddleMouseButton; - } - - if (keys.HasFlagCustom(ModifierKeys.MK_XBUTTON1)) - { - modifiers |= RawInputModifiers.XButton1MouseButton; - } - - if (keys.HasFlagCustom(ModifierKeys.MK_XBUTTON2)) - { - modifiers |= RawInputModifiers.XButton2MouseButton; - } - - return modifiers; - } - } }