1/*
2 * Copyright (C) 2019 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 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * 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 THE COPYRIGHT HOLDERS ``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 THE COPYRIGHT OWNER 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#include "config.h"
27#include "DeviceOrientationAndMotionAccessController.h"
28
29#if ENABLE(DEVICE_ORIENTATION)
30
31#include "Chrome.h"
32#include "ChromeClient.h"
33#include "DOMWindow.h"
34#include "Document.h"
35#include "DocumentLoader.h"
36#include "Frame.h"
37#include "Page.h"
38#include "UserGestureIndicator.h"
39
40namespace WebCore {
41
42DeviceOrientationAndMotionAccessController::DeviceOrientationAndMotionAccessController(Document& document)
43 : m_document(document)
44{
45 ASSERT(&m_document.topDocument() == &m_document);
46
47 // Initial value is based on the per-site setting.
48 auto* frame = m_document.frame();
49 if (auto* documentLoader = frame ? frame->loader().documentLoader() : nullptr)
50 m_accessState = documentLoader->deviceOrientationAndMotionAccessState();
51}
52
53void DeviceOrientationAndMotionAccessController::shouldAllowAccess(Function<void(DeviceOrientationOrMotionPermissionState)>&& callback)
54{
55 auto* page = m_document.page();
56 auto* frame = m_document.frame();
57 if (!page || !frame)
58 return callback(DeviceOrientationOrMotionPermissionState::Denied);
59
60 bool mayPrompt = UserGestureIndicator::processingUserGesture();
61 if (m_accessState != DeviceOrientationOrMotionPermissionState::Prompt)
62 return callback(m_accessState);
63
64 page->chrome().client().shouldAllowDeviceOrientationAndMotionAccess(*m_document.frame(), mayPrompt, [this, weakThis = makeWeakPtr(this), callback = WTFMove(callback)](DeviceOrientationOrMotionPermissionState permissionState) mutable {
65 if (!weakThis)
66 return;
67
68 m_accessState = permissionState;
69 callback(permissionState);
70
71 if (permissionState != DeviceOrientationOrMotionPermissionState::Granted)
72 return;
73
74 for (auto* frame = m_document.frame(); frame && frame->window(); frame = frame->tree().traverseNext(m_document.frame())) {
75 frame->window()->startListeningForDeviceOrientationIfNecessary();
76 frame->window()->startListeningForDeviceMotionIfNecessary();
77 }
78 });
79}
80
81} // namespace WebCore
82
83#endif // ENABLE(DEVICE_ORIENTATION)
84