1/*
2 * Copyright (C) 2016 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#include "Region.h"
29#include <wtf/HashMap.h>
30#include <wtf/text/StringHash.h>
31#include <wtf/text/WTFString.h>
32
33#if ENABLE(POINTER_EVENTS)
34#include "CSSPrimitiveValueMappings.h"
35#include "ScrollingCoordinatorTypes.h"
36#include "TouchAction.h"
37#endif
38
39namespace WebCore {
40
41enum class TrackingType : uint8_t {
42 NotTracking = 0,
43 Asynchronous = 1,
44 Synchronous = 2
45};
46
47#if ENABLE(POINTER_EVENTS)
48typedef uint64_t ScrollingNodeID;
49struct TouchActionData {
50 OptionSet<TouchAction> touchActions { TouchAction::Auto };
51 ScrollingNodeID scrollingNodeID { 0 };
52 Region region;
53};
54
55bool operator==(const TouchActionData&, const TouchActionData&);
56inline bool operator!=(const TouchActionData& a, const TouchActionData& b) { return !(a == b); }
57#endif
58
59struct EventTrackingRegions {
60 // Region for which events can be dispatched without blocking scrolling.
61 Region asynchronousDispatchRegion;
62
63 // Regions for which events must be sent before performing the default behavior.
64 // The key is the Event Name with an active handler.
65 HashMap<String, Region> eventSpecificSynchronousDispatchRegions;
66
67#if ENABLE(POINTER_EVENTS)
68 Vector<TouchActionData> touchActionData;
69#endif
70
71 bool isEmpty() const;
72
73 void translate(IntSize);
74 void uniteSynchronousRegion(const String& eventName, const Region&);
75 void unite(const EventTrackingRegions&);
76
77 TrackingType trackingTypeForPoint(const String& eventName, const IntPoint&);
78};
79
80bool operator==(const EventTrackingRegions&, const EventTrackingRegions&);
81inline bool operator!=(const EventTrackingRegions& a, const EventTrackingRegions& b) { return !(a == b); }
82
83} // namespace WebCore
84