1 | /* |
2 | * Copyright (C) 2017-2018 Igalia S.L. 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. AND ITS CONTRIBUTORS ``AS IS'' |
14 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
15 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
17 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
18 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
19 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
20 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
21 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
22 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
23 | * THE POSSIBILITY OF SUCH DAMAGE. |
24 | */ |
25 | |
26 | #include "config.h" |
27 | #include "NavigatorWebVR.h" |
28 | |
29 | #include "Document.h" |
30 | #include "JSVRDisplay.h" |
31 | #include "Navigator.h" |
32 | #include "RuntimeEnabledFeatures.h" |
33 | #include "VRDisplay.h" |
34 | #include "VRManager.h" |
35 | #include "VRPlatformDisplay.h" |
36 | |
37 | namespace WebCore { |
38 | |
39 | void NavigatorWebVR::getVRDisplays(Navigator& navigator, Document& document, GetVRDisplaysPromise&& promise) |
40 | { |
41 | if (!RuntimeEnabledFeatures::sharedFeatures().webVREnabled()) { |
42 | promise.reject(); |
43 | return; |
44 | } |
45 | NavigatorWebVR::from(&navigator)->getVRDisplays(document, WTFMove(promise)); |
46 | } |
47 | |
48 | void NavigatorWebVR::getVRDisplays(Document& document, GetVRDisplaysPromise&& promise) |
49 | { |
50 | document.postTask([this, promise = WTFMove(promise)] (ScriptExecutionContext& context) mutable { |
51 | Optional<VRManager::VRDisplaysVector> platformDisplays = VRManager::singleton().getVRDisplays(); |
52 | if (!platformDisplays) { |
53 | promise.reject(); |
54 | m_displays.clear(); |
55 | return; |
56 | } |
57 | |
58 | Vector<Ref<VRDisplay>> oldDisplays = WTFMove(m_displays); |
59 | |
60 | // Update the vector of displays. Note that although this is O(n^2) the amount of expected |
61 | // VRDisplays is so reduced that it'll run fast enough. |
62 | for (auto& platformDisplay : platformDisplays.value()) { |
63 | bool newDisplay = true; |
64 | for (auto& oldDisplay : oldDisplays) { |
65 | if (platformDisplay->getDisplayInfo().displayIdentifier() == oldDisplay->displayId()) { |
66 | newDisplay = false; |
67 | m_displays.append(oldDisplay.copyRef()); |
68 | break; |
69 | } |
70 | } |
71 | if (newDisplay) { |
72 | m_displays.append(VRDisplay::create(context, WTFMove(platformDisplay))); |
73 | m_displays.last()->platformDisplayConnected(); |
74 | } |
75 | } |
76 | promise.resolve(WTF::map(m_displays, [](const Ref<VRDisplay>& display) { |
77 | return display.copyRef(); |
78 | })); |
79 | }); |
80 | } |
81 | |
82 | const Vector<RefPtr<VRDisplay>>& NavigatorWebVR::activeVRDisplays(Navigator&) |
83 | { |
84 | static auto mockVector = makeNeverDestroyed(Vector<RefPtr<VRDisplay>> { }); |
85 | return mockVector; |
86 | } |
87 | |
88 | const char* NavigatorWebVR::supplementName() |
89 | { |
90 | return "NavigatorWebVR" ; |
91 | } |
92 | |
93 | NavigatorWebVR* NavigatorWebVR::from(Navigator* navigator) |
94 | { |
95 | NavigatorWebVR* supplement = static_cast<NavigatorWebVR*>(Supplement<Navigator>::from(navigator, supplementName())); |
96 | if (!supplement) { |
97 | auto newSupplement = std::make_unique<NavigatorWebVR>(); |
98 | supplement = newSupplement.get(); |
99 | provideTo(navigator, supplementName(), WTFMove(newSupplement)); |
100 | } |
101 | return supplement; |
102 | } |
103 | |
104 | } // namespace WebCore |
105 | |