chromium/chrome/browser/tab_contents/form_interaction_tab_helper.cc

// Copyright 2019 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/tab_contents/form_interaction_tab_helper.h"

#include "base/functional/bind.h"
#include "components/performance_manager/public/graph/graph.h"
#include "components/performance_manager/public/graph/page_node.h"
#include "components/performance_manager/public/performance_manager.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"

namespace {

#if DCHECK_IS_ON()
bool g_observer_exists = …;
#endif

}  // namespace

// Graph observer used to receive the page form interaction events.
class FormInteractionTabHelper::GraphObserver
    : public performance_manager::PageNode::ObserverDefaultImpl,
      public performance_manager::GraphOwned { … };

// static
void FormInteractionTabHelper::GraphObserver::DispatchOnHadFormInteraction(
    base::WeakPtr<content::WebContents> contents,
    bool had_form_interaction) { … }

void FormInteractionTabHelper::GraphObserver::OnHadFormInteractionChanged(
    const performance_manager::PageNode* page_node) { … }

void FormInteractionTabHelper::GraphObserver::OnPassedToGraph(
    performance_manager::Graph* graph) { … }

void FormInteractionTabHelper::GraphObserver::OnTakenFromGraph(
    performance_manager::Graph* graph) { … }

// static
std::unique_ptr<performance_manager::GraphOwned>
FormInteractionTabHelper::CreateGraphObserver() { … }

FormInteractionTabHelper::FormInteractionTabHelper(
    content::WebContents* contents)
    : … { … }

FormInteractionTabHelper::~FormInteractionTabHelper() = default;

bool FormInteractionTabHelper::had_form_interaction() const { … }

WEB_CONTENTS_USER_DATA_KEY_IMPL(FormInteractionTabHelper);