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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/modules/device_orientation/device_motion_controller.h"
#include "services/network/public/mojom/permissions_policy/permissions_policy_feature.mojom-blink.h"
#include "third_party/blink/public/platform/platform.h"
#include "third_party/blink/renderer/bindings/core/v8/script_promise_resolver.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_permission_state.h"
#include "third_party/blink/renderer/core/dom/document.h"
#include "third_party/blink/renderer/core/frame/settings.h"
#include "third_party/blink/renderer/modules/device_orientation/device_motion_data.h"
#include "third_party/blink/renderer/modules/device_orientation/device_motion_event.h"
#include "third_party/blink/renderer/modules/device_orientation/device_motion_event_pump.h"
#include "third_party/blink/renderer/modules/device_orientation/device_orientation_controller.h"
#include "third_party/blink/renderer/modules/event_modules.h"
#include "third_party/blink/renderer/modules/permissions/permission_utils.h"
#include "third_party/blink/renderer/platform/bindings/script_state.h"
#include "third_party/blink/renderer/platform/weborigin/security_origin.h"
namespace blink {
DeviceMotionController::DeviceMotionController(LocalDOMWindow& window)
: DeviceSingleWindowEventController(window),
Supplement<LocalDOMWindow>(window),
permission_service_(&window) {}
DeviceMotionController::~DeviceMotionController() = default;
const char DeviceMotionController::kSupplementName[] = "DeviceMotionController";
DeviceMotionController& DeviceMotionController::From(LocalDOMWindow& window) {
DeviceMotionController* controller =
Supplement<LocalDOMWindow>::From<DeviceMotionController>(window);
if (!controller) {
controller = MakeGarbageCollected<DeviceMotionController>(window);
ProvideTo(window, controller);
}
return *controller;
}
void DeviceMotionController::DidAddEventListener(
LocalDOMWindow* window,
const AtomicString& event_type) {
if (event_type != EventTypeName())
return;
// The window could be detached, e.g. if it is the `contentWindow` of an
// <iframe> that has been removed from the DOM of its parent frame.
if (GetWindow().IsContextDestroyed())
return;
// The API is not exposed to Workers or Worklets, so if the current realm
// execution context is valid, it must have a responsible browsing context.
SECURITY_CHECK(GetWindow().GetFrame());
// The event handler property on `window` is restricted to [SecureContext],
// but nothing prevents a site from calling `window.addEventListener(...)`
// from a non-secure browsing context.
if (!GetWindow().IsSecureContext())
return;
UseCounter::Count(GetWindow(), WebFeature::kDeviceMotionSecureOrigin);
if (!has_requested_permission_) {
UseCounter::Count(GetWindow(),
WebFeature::kDeviceMotionUsedWithoutPermissionRequest);
}
if (!has_event_listener_) {
if (!CheckPolicyFeatures(
{network::mojom::PermissionsPolicyFeature::kAccelerometer,
network::mojom::PermissionsPolicyFeature::kGyroscope})) {
DeviceOrientationController::LogToConsolePolicyFeaturesDisabled(
*GetWindow().GetFrame(), EventTypeName());
return;
}
}
DeviceSingleWindowEventController::DidAddEventListener(window, event_type);
}
bool DeviceMotionController::HasLastData() {
return motion_event_pump_
? motion_event_pump_->LatestDeviceMotionData() != nullptr
: false;
}
void DeviceMotionController::RegisterWithDispatcher() {
if (!motion_event_pump_) {
motion_event_pump_ =
MakeGarbageCollected<DeviceMotionEventPump>(*GetWindow().GetFrame());
}
motion_event_pump_->SetController(this);
}
void DeviceMotionController::UnregisterWithDispatcher() {
if (motion_event_pump_)
motion_event_pump_->RemoveController();
}
Event* DeviceMotionController::LastEvent() const {
return DeviceMotionEvent::Create(
event_type_names::kDevicemotion,
motion_event_pump_ ? motion_event_pump_->LatestDeviceMotionData()
: nullptr);
}
bool DeviceMotionController::IsNullEvent(Event* event) const {
auto* motion_event = To<DeviceMotionEvent>(event);
return !motion_event->GetDeviceMotionData()->CanProvideEventData();
}
const AtomicString& DeviceMotionController::EventTypeName() const {
return event_type_names::kDevicemotion;
}
void DeviceMotionController::Trace(Visitor* visitor) const {
DeviceSingleWindowEventController::Trace(visitor);
visitor->Trace(motion_event_pump_);
visitor->Trace(permission_service_);
Supplement<LocalDOMWindow>::Trace(visitor);
}
ScriptPromise<V8PermissionState> DeviceMotionController::RequestPermission(
ScriptState* script_state) {
ExecutionContext* context = GetSupplementable();
DCHECK_EQ(context, ExecutionContext::From(script_state));
has_requested_permission_ = true;
if (!permission_service_.is_bound()) {
ConnectToPermissionService(context,
permission_service_.BindNewPipeAndPassReceiver(
context->GetTaskRunner(TaskType::kSensor)));
}
auto* resolver =
MakeGarbageCollected<ScriptPromiseResolver<V8PermissionState>>(
script_state);
auto promise = resolver->Promise();
permission_service_->HasPermission(
CreatePermissionDescriptor(mojom::blink::PermissionName::SENSORS),
resolver->WrapCallbackInScriptScope(
WTF::BindOnce([](ScriptPromiseResolver<V8PermissionState>* resolver,
mojom::blink::PermissionStatus status) {
switch (status) {
case mojom::blink::PermissionStatus::GRANTED:
case mojom::blink::PermissionStatus::DENIED:
resolver->Resolve(ToV8PermissionState(status));
break;
case mojom::blink::PermissionStatus::ASK:
// At the moment, this state is not reachable because there
// is no "ask" or "prompt" state in the Chromium
// permissions UI for sensors, so HasPermissionStatus() will
// always return GRANTED or DENIED.
NOTREACHED();
}
})));
return promise;
}
} // namespace blink
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