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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/vr/chrome_xr_integration_client.h"
#include <memory>
#include <utility>
#include "base/command_line.h"
#include "base/metrics/user_metrics.h"
#include "base/metrics/user_metrics_action.h"
#include "base/strings/string_util.h"
#include "build/build_config.h"
#include "chrome/browser/media/webrtc/media_capture_devices_dispatcher.h"
#include "chrome/browser/media/webrtc/media_stream_capture_indicator.h"
#include "chrome/browser/vr/ui_host/vr_ui_host_impl.h"
#include "content/public/browser/browser_xr_runtime.h"
#include "content/public/browser/media_stream_request.h"
#include "content/public/browser/xr_install_helper.h"
#include "content/public/common/content_switches.h"
#include "device/vr/buildflags/buildflags.h"
#include "device/vr/public/cpp/features.h"
#include "device/vr/public/cpp/vr_device_provider.h"
#include "device/vr/public/mojom/vr_service.mojom-shared.h"
#include "third_party/blink/public/common/mediastream/media_stream_request.h"
#include "third_party/blink/public/mojom/mediastream/media_stream.mojom.h"
#if BUILDFLAG(IS_ANDROID)
#if BUILDFLAG(ENABLE_ARCORE)
#include "chrome/browser/android/vr/ar_jni_headers/ArCompositorDelegateProviderImpl_jni.h"
#include "components/webxr/android/ar_compositor_delegate_provider.h"
#include "components/webxr/android/arcore_device_provider.h"
#include "components/webxr/android/arcore_install_helper.h"
#endif // BUILDFLAG(ENABLE_ARCORE)
#if BUILDFLAG(ENABLE_CARDBOARD)
#include "chrome/browser/android/vr/vr_jni_headers/VrCompositorDelegateProviderImpl_jni.h"
#include "components/webxr/android/cardboard_device_provider.h"
#include "components/webxr/android/vr_compositor_delegate_provider.h"
#endif // BUILDFLAG(ENABLE_CARDBOARD)
#if BUILDFLAG(ENABLE_OPENXR)
#include "components/webxr/android/openxr_device_provider.h"
#endif // BUILDFLAG(ENABLE_OPENXR)
#endif // BUILDFLAG(IS_ANDROID)
namespace {
constexpr char kWebXrVideoCaptureDeviceId[] = "WebXRVideoCaptureDevice:-1";
constexpr char kWebXrVideoCaptureDeviceName[] = "WebXRVideoCaptureDevice";
constexpr char kWebXrMediaStreamLabel[] = "WebXR Raw Camera Access";
class CameraIndicationObserver : public content::BrowserXRRuntime::Observer {
public:
void WebXRCameraInUseChanged(content::WebContents* web_contents,
bool in_use) override {
DVLOG(3) << __func__ << ": web_contents=" << web_contents
<< ", in_use=" << in_use << ", num_runtimes_with_camera_in_use_="
<< num_runtimes_with_camera_in_use_ << ", ui_=" << ui_.get();
// If `in_use` is true, we need to have a non-null `web_contents` to be able
// to register the media stream:
DCHECK(!in_use || web_contents);
if (in_use) {
num_runtimes_with_camera_in_use_++;
} else {
DCHECK_GT(num_runtimes_with_camera_in_use_, 0u);
num_runtimes_with_camera_in_use_--;
}
if (num_runtimes_with_camera_in_use_ && !ui_) {
DCHECK(web_contents);
blink::mojom::StreamDevices devices;
devices.video_device = blink::MediaStreamDevice(
blink::mojom::MediaStreamType::DEVICE_VIDEO_CAPTURE,
kWebXrVideoCaptureDeviceId, kWebXrVideoCaptureDeviceName);
ui_ = MediaCaptureDevicesDispatcher::GetInstance()
->GetMediaStreamCaptureIndicator()
->RegisterMediaStream(web_contents, devices);
DCHECK(ui_);
}
if (num_runtimes_with_camera_in_use_) {
ui_->OnStarted({}, {}, kWebXrMediaStreamLabel, {}, {});
} else {
ui_->OnDeviceStopped(kWebXrMediaStreamLabel, {});
ui_ = nullptr;
}
}
private:
size_t num_runtimes_with_camera_in_use_ = 0;
std::unique_ptr<content::MediaStreamUI> ui_;
};
#if BUILDFLAG(IS_ANDROID)
bool HasForcedRuntime(const base::CommandLine* command_line) {
return command_line->HasSwitch(switches::kWebXrForceRuntime);
}
// Helper method to validate if a runtime is forced-enabled by the command line.
// This can be used to override a feature check.
bool IsForcedByCommandLine(const base::CommandLine* command_line,
const std::string& name) {
if (command_line->HasSwitch(switches::kWebXrForceRuntime)) {
return (base::CompareCaseInsensitiveASCII(
command_line->GetSwitchValueASCII(switches::kWebXrForceRuntime),
name) == 0);
}
return false;
}
bool IsOtherRuntimeForced(const base::CommandLine* command_line,
const std::string& name) {
return HasForcedRuntime(command_line) &&
!IsForcedByCommandLine(command_line, name);
}
#endif
} // namespace
namespace vr {
std::unique_ptr<content::XrInstallHelper>
ChromeXrIntegrationClient::GetInstallHelper(
device::mojom::XRDeviceId device_id) {
switch (device_id) {
#if BUILDFLAG(ENABLE_ARCORE)
case device::mojom::XRDeviceId::ARCORE_DEVICE_ID:
return std::make_unique<webxr::ArCoreInstallHelper>();
#endif // BUILDFLAG(ENABLE_ARCORE)
default:
return nullptr;
}
}
content::XRProviderList ChromeXrIntegrationClient::GetAdditionalProviders() {
content::XRProviderList providers;
#if BUILDFLAG(IS_ANDROID)
#if BUILDFLAG(ENABLE_OPENXR)
if (IsForcedByCommandLine(base::CommandLine::ForCurrentProcess(),
switches::kWebXrRuntimeOpenXr) ||
(device::features::IsOpenXrEnabled() &&
!IsOtherRuntimeForced(base::CommandLine::ForCurrentProcess(),
switches::kWebXrRuntimeOpenXr))) {
providers.emplace_back(std::make_unique<webxr::OpenXrDeviceProvider>());
}
#endif // BUILDFLAG(ENABLE_OPENXR)
#if BUILDFLAG(ENABLE_CARDBOARD)
if (!IsOtherRuntimeForced(base::CommandLine::ForCurrentProcess(),
switches::kWebXrRuntimeCardboard)) {
base::android::ScopedJavaLocalRef<jobject>
j_vr_compositor_delegate_provider =
vr::Java_VrCompositorDelegateProviderImpl_Constructor(
base::android::AttachCurrentThread());
providers.emplace_back(std::make_unique<webxr::CardboardDeviceProvider>(
std::make_unique<webxr::VrCompositorDelegateProvider>(
std::move(j_vr_compositor_delegate_provider))));
}
#endif // BUILDFLAG(ENABLE_CARDBOARD)
#if BUILDFLAG(ENABLE_ARCORE)
if (!IsOtherRuntimeForced(base::CommandLine::ForCurrentProcess(),
switches::kWebXrRuntimeArCore)) {
base::android::ScopedJavaLocalRef<jobject>
j_ar_compositor_delegate_provider =
vr::Java_ArCompositorDelegateProviderImpl_Constructor(
base::android::AttachCurrentThread());
providers.push_back(std::make_unique<webxr::ArCoreDeviceProvider>(
std::make_unique<webxr::ArCompositorDelegateProvider>(
std::move(j_ar_compositor_delegate_provider))));
}
#endif // BUILDFLAG(ENABLE_ARCORE)
#endif // BUILDFLAG(IS_ANDROID)
return providers;
}
std::unique_ptr<content::BrowserXRRuntime::Observer>
ChromeXrIntegrationClient::CreateRuntimeObserver() {
DVLOG(3) << __func__;
return std::make_unique<CameraIndicationObserver>();
}
std::unique_ptr<content::VrUiHost> ChromeXrIntegrationClient::CreateVrUiHost(
content::WebContents& contents,
const std::vector<device::mojom::XRViewPtr>& views,
mojo::PendingRemote<device::mojom::ImmersiveOverlay> overlay) {
return std::make_unique<VRUiHostImpl>(contents, views, std::move(overlay));
}
} // namespace vr
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