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Side by Side Diff: content/browser/renderer_host/input/gesture_event_packet.h

Issue 181833003: [Android] Out with the Android GR, in with the new unified C++ GR (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Rebase Created 6 years, 9 months ago
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1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #ifndef CONTENT_BROWSER_RENDERER_HOST_INPUT_GESTURE_EVENT_PACKET_H_
6 #define CONTENT_BROWSER_RENDERER_HOST_INPUT_GESTURE_EVENT_PACKET_H_
7
8 #include "content/common/content_export.h"
9 #include "third_party/WebKit/public/web/WebInputEvent.h"
10
11 namespace content {
12
13 // Acts as a transport container for gestures created (directly or indirectly)
14 // by a touch event.
15 class CONTENT_EXPORT GestureEventPacket {
16 public:
17 enum GestureSource {
18 UNDEFINED = -1, // Used only for a default-constructed packet.
19 INVALID, // The source of the gesture was invalid.
20 TOUCH_SEQUENCE_START, // The start of a new gesture sequence.
21 TOUCH_SEQUENCE_END, // The end of gesture sequence.
22 TOUCH_START, // A touch down occured during a gesture sequence.
23 TOUCH_MOVE, // A touch move occured during a gesture sequence.
24 TOUCH_END, // A touch up occured during a gesture sequence.
25 TOUCH_TIMEOUT, // Timeout from an existing gesture sequence.
26 };
27
28 GestureEventPacket();
29 GestureEventPacket(const GestureEventPacket& other);
30 ~GestureEventPacket();
31 GestureEventPacket& operator=(const GestureEventPacket& other);
32
33 // Factory methods for creating a packet from a particular event.
34 static GestureEventPacket FromTouch(const blink::WebTouchEvent& event);
35 static GestureEventPacket FromTouchTimeout(
36 const blink::WebGestureEvent& event);
37
38 void Push(const blink::WebGestureEvent& gesture);
39
40 const blink::WebGestureEvent& gesture(size_t i) const { return gestures_[i]; }
41 size_t gesture_count() const { return gesture_count_; }
42 GestureSource gesture_source() const { return gesture_source_; }
43
44 private:
45 explicit GestureEventPacket(GestureSource source);
46
47 enum { kMaxGesturesPerTouch = 5 };
48 blink::WebGestureEvent gestures_[kMaxGesturesPerTouch];
49 size_t gesture_count_;
50 GestureSource gesture_source_;
51 };
52
53 } // namespace content
54
55 #endif // CONTENT_BROWSER_RENDERER_HOST_INPUT_GESTURE_EVENT_PACKET_H_
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