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dd80fc9ff6
Adds support for pointer signals, in a way that will support both discrete events (e.g., scroll wheels, flutter/flutter#22762) and continuous gestures (e.g., trackpad scroll, flutter/flutter#21953). Also exposes these new event options to the embedder. Does not include code to send the new events from the platform shells.
71 lines
1.4 KiB
C++
71 lines
1.4 KiB
C++
// Copyright 2013 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef FLUTTER_LIB_UI_WINDOW_POINTER_DATA_H_
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#define FLUTTER_LIB_UI_WINDOW_POINTER_DATA_H_
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#include <stdint.h>
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namespace blink {
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// This structure is unpacked by hooks.dart.
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struct alignas(8) PointerData {
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// Must match the PointerChange enum in pointer.dart.
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enum class Change : int64_t {
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kCancel,
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kAdd,
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kRemove,
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kHover,
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kDown,
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kMove,
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kUp,
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};
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// Must match the PointerDeviceKind enum in pointer.dart.
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enum class DeviceKind : int64_t {
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kTouch,
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kMouse,
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kStylus,
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kInvertedStylus,
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kSignal,
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};
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// Must match the PointerSignalKind enum in pointer.dart.
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enum class SignalKind : int64_t {
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kNone,
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kScroll,
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};
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int64_t time_stamp;
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Change change;
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DeviceKind kind;
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SignalKind signal_kind;
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int64_t device;
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double physical_x;
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double physical_y;
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int64_t buttons;
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int64_t obscured;
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double pressure;
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double pressure_min;
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double pressure_max;
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double distance;
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double distance_max;
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double size;
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double radius_major;
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double radius_minor;
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double radius_min;
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double radius_max;
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double orientation;
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double tilt;
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int64_t platformData;
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double scroll_delta_x;
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double scroll_delta_y;
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void Clear();
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};
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} // namespace blink
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#endif // FLUTTER_LIB_UI_WINDOW_POINTER_DATA_H_
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