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// Copyright 2014 The Chromium Authors. All rights reserved.
// 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/battery/navigator_battery.h"
#include "third_party/blink/renderer/core/execution_context/execution_context.h"
#include "third_party/blink/renderer/core/frame/local_dom_window.h"
#include "third_party/blink/renderer/core/frame/local_frame.h"
#include "third_party/blink/renderer/modules/battery/battery_manager.h"
#include "third_party/blink/renderer/platform/instrumentation/use_counter.h"
namespace blink {
NavigatorBattery::NavigatorBattery(Navigator& navigator)
: Supplement<Navigator>(navigator) {}
ScriptPromise NavigatorBattery::getBattery(ScriptState* script_state,
Navigator& navigator) {
return NavigatorBattery::From(navigator).getBattery(script_state);
}
ScriptPromise NavigatorBattery::getBattery(ScriptState* script_state) {
if (!script_state->ContextIsValid())
return ScriptPromise();
LocalDOMWindow* window = LocalDOMWindow::From(script_state);
// Check to see if this request would be blocked according to the Battery
// Status API specification.
if (window) {
if (LocalFrame* frame = window->GetFrame()) {
if (!window->IsSecureContext())
UseCounter::Count(window, WebFeature::kBatteryStatusInsecureOrigin);
frame->CountUseIfFeatureWouldBeBlockedByFeaturePolicy(
WebFeature::kBatteryStatusCrossOrigin,
WebFeature::kBatteryStatusSameOriginABA);
}
}
if (!battery_manager_)
battery_manager_ = BatteryManager::Create(window);
return battery_manager_->StartRequest(script_state);
}
const char NavigatorBattery::kSupplementName[] = "NavigatorBattery";
NavigatorBattery& NavigatorBattery::From(Navigator& navigator) {
NavigatorBattery* supplement =
Supplement<Navigator>::From<NavigatorBattery>(navigator);
if (!supplement) {
supplement = MakeGarbageCollected<NavigatorBattery>(navigator);
ProvideTo(navigator, supplement);
}
return *supplement;
}
void NavigatorBattery::Trace(Visitor* visitor) const {
visitor->Trace(battery_manager_);
Supplement<Navigator>::Trace(visitor);
}
} // namespace blink
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