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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "CoalescedInputData.h"
#include "BrowserChild.h"
#include "mozilla/PresShell.h"
#include "nsRefreshDriver.h"
using namespace mozilla;
using namespace mozilla::dom;
void CoalescedInputFlusher::StartObserver() {
nsRefreshDriver* refreshDriver = GetRefreshDriver();
if (mRefreshDriver && mRefreshDriver == refreshDriver) {
// Nothing to do if we already added an observer and it's same refresh
// driver.
return;
}
RemoveObserver();
if (refreshDriver) {
mRefreshDriver = refreshDriver;
mRefreshDriver->AddRefreshObserver(this, FlushType::Event,
"Coalesced input move flusher");
}
}
CoalescedInputFlusher::CoalescedInputFlusher(BrowserChild* aBrowserChild)
: mBrowserChild(aBrowserChild) {}
void CoalescedInputFlusher::RemoveObserver() {
if (mRefreshDriver) {
mRefreshDriver->RemoveRefreshObserver(this, FlushType::Event);
mRefreshDriver = nullptr;
}
}
CoalescedInputFlusher::~CoalescedInputFlusher() = default;
nsRefreshDriver* CoalescedInputFlusher::GetRefreshDriver() {
if (PresShell* presShell = mBrowserChild->GetTopLevelPresShell()) {
return presShell->GetRefreshDriver();
}
return nullptr;
}
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