1// Copyright (c) 2012 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#include "content/common/gamepad_user_gesture.h"
6
7#include <algorithm>
8
9#include "third_party/WebKit/public/platform/WebGamepads.h"
10
11namespace content {
12
13bool GamepadsHaveUserGesture(const blink::WebGamepads& gamepads) {
14  for (unsigned i = 0; i < blink::WebGamepads::itemsLengthCap; i++) {
15    const blink::WebGamepad& pad = gamepads.items[i];
16
17    // If the device is physically connected, then check the primary 4 buttons
18    // to see if there is currently an intentional user action.
19    if (pad.connected) {
20      const unsigned kPrimaryInteractionButtons = 4;
21      unsigned buttons_to_check = std::min(pad.buttonsLength,
22                                           kPrimaryInteractionButtons);
23      for (unsigned button_index = 0; button_index < buttons_to_check;
24           button_index++) {
25        if (pad.buttons[button_index].pressed)
26          return true;
27      }
28    }
29  }
30  return false;
31}
32
33}  // namespace content
34