webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 108 insertions, 0 deletions

diff --git a/Source/WebCore/Modules/mediastream/MediaDevices.cpp b/Source/WebCore/Modules/mediastream/MediaDevices.cpp
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+++ b/Source/WebCore/Modules/mediastream/MediaDevices.cpp
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+/*
+ * Copyright (C) 2015 Ericsson AB. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer
+ *    in the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name of Ericsson nor the names of its contributors
+ *    may be used to endorse or promote products derived from this
+ *    software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "MediaDevices.h"
+
+#if ENABLE(MEDIA_STREAM)
+
+#include "Document.h"
+#include "MediaConstraintsImpl.h"
+#include "MediaDevicesRequest.h"
+#include "MediaTrackSupportedConstraints.h"
+#include "RealtimeMediaSourceCenter.h"
+#include "UserMediaRequest.h"
+
+namespace WebCore {
+
+inline MediaDevices::MediaDevices(Document& document)
+    : ContextDestructionObserver(&document)
+{
+}
+
+Ref<MediaDevices> MediaDevices::create(Document& document)
+{
+    return adoptRef(*new MediaDevices(document));
+}
+
+Document* MediaDevices::document() const
+{
+    return downcast<Document>(scriptExecutionContext());
+}
+
+static Ref<MediaConstraintsImpl> createMediaConstraintsImpl(const Variant<bool, MediaTrackConstraints>& constraints)
+{
+    return WTF::switchOn(constraints,
+        [&] (bool constraints) {
+            return MediaConstraintsImpl::create({ }, { }, constraints);
+        },
+        [&] (const MediaTrackConstraints& constraints) {
+            return createMediaConstraintsImpl(constraints);
+        }
+    );
+}
+
+ExceptionOr<void> MediaDevices::getUserMedia(const StreamConstraints& constraints, Promise&& promise) const
+{
+    auto* document = this->document();
+    if (!document)
+        return Exception { INVALID_STATE_ERR };
+    return UserMediaRequest::start(*document, createMediaConstraintsImpl(constraints.audio), createMediaConstraintsImpl(constraints.video), WTFMove(promise));
+}
+
+void MediaDevices::enumerateDevices(EnumerateDevicesPromise&& promise) const
+{
+    auto* document = this->document();
+    if (!document)
+        return;
+    MediaDevicesRequest::create(*document, WTFMove(promise))->start();
+}
+
+MediaTrackSupportedConstraints MediaDevices::getSupportedConstraints()
+{
+    auto& supported = RealtimeMediaSourceCenter::singleton().supportedConstraints();
+    MediaTrackSupportedConstraints result;
+    result.width = supported.supportsWidth();
+    result.height = supported.supportsHeight();
+    result.aspectRatio = supported.supportsAspectRatio();
+    result.frameRate = supported.supportsFrameRate();
+    result.facingMode = supported.supportsFacingMode();
+    result.volume = supported.supportsVolume();
+    result.sampleRate = supported.supportsSampleRate();
+    result.sampleSize = supported.supportsSampleSize();
+    result.echoCancellation = supported.supportsEchoCancellation();
+    result.deviceId = supported.supportsDeviceId();
+    result.groupId = supported.supportsGroupId();
+    return result;
+}
+
+} // namespace WebCore
+
+#endif // ENABLE(MEDIA_STREAM)