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// Copyright 2015 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 "content/browser/wake_lock/wake_lock_service_context.h"
#include <utility>
#include "base/bind.h"
#include "build/build_config.h"
#include "content/browser/power_save_blocker_impl.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/power_save_blocker.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/common/service_registry.h"
namespace content {
WakeLockServiceContext::WakeLockServiceContext(WebContents* web_contents)
: WebContentsObserver(web_contents), weak_factory_(this) {}
WakeLockServiceContext::~WakeLockServiceContext() {}
void WakeLockServiceContext::CreateService(
int render_process_id,
int render_frame_id,
mojo::InterfaceRequest<blink::mojom::WakeLockService> request) {
new WakeLockServiceImpl(weak_factory_.GetWeakPtr(), render_process_id,
render_frame_id, std::move(request));
}
void WakeLockServiceContext::RenderFrameDeleted(
RenderFrameHost* render_frame_host) {
CancelWakeLock(render_frame_host->GetProcess()->GetID(),
render_frame_host->GetRoutingID());
}
void WakeLockServiceContext::RequestWakeLock(int render_process_id,
int render_frame_id) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
if (!RenderFrameHost::FromID(render_process_id, render_frame_id))
return;
frames_requesting_lock_.insert(
std::pair<int, int>(render_process_id, render_frame_id));
UpdateWakeLock();
}
void WakeLockServiceContext::CancelWakeLock(int render_process_id,
int render_frame_id) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
frames_requesting_lock_.erase(
std::pair<int, int>(render_process_id, render_frame_id));
UpdateWakeLock();
}
bool WakeLockServiceContext::HasWakeLockForTests() const {
return !!wake_lock_;
}
void WakeLockServiceContext::CreateWakeLock() {
DCHECK(!wake_lock_);
wake_lock_ = PowerSaveBlocker::Create(
PowerSaveBlocker::kPowerSaveBlockPreventDisplaySleep,
PowerSaveBlocker::kReasonOther, "Wake Lock API");
#if defined(OS_ANDROID)
// On Android, additionaly associate the blocker with this WebContents.
DCHECK(web_contents());
static_cast<PowerSaveBlockerImpl*>(wake_lock_.get())
->InitDisplaySleepBlocker(web_contents());
#endif
}
void WakeLockServiceContext::RemoveWakeLock() {
DCHECK(wake_lock_);
wake_lock_.reset();
}
void WakeLockServiceContext::UpdateWakeLock() {
if (!frames_requesting_lock_.empty()) {
if (!wake_lock_)
CreateWakeLock();
} else {
if (wake_lock_)
RemoveWakeLock();
}
}
} // namespace content
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