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// Copyright 2017 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/ui/webui/conflicts/conflicts_handler.h"
#include <utility>
#include "base/functional/bind.h"
#include "base/values.h"
#include "chrome/grit/generated_resources.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/web_ui.h"
ConflictsHandler::ConflictsHandler()
: conflicts_data_fetcher_(nullptr, base::OnTaskRunnerDeleter(nullptr)) {}
ConflictsHandler::~ConflictsHandler() = default;
void ConflictsHandler::RegisterMessages() {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
web_ui()->RegisterMessageCallback(
"requestModuleList",
base::BindRepeating(&ConflictsHandler::HandleRequestModuleList,
base::Unretained(this)));
}
void ConflictsHandler::HandleRequestModuleList(
const base::Value::List& args_list) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
// Make sure the JS doesn't call 'requestModuleList' more than once.
// TODO(crbug.com/40528619): It would be better to kill the renderer instead
// of the browser for malformed messages.
CHECK_EQ(1U, args_list.size());
module_list_callback_id_ = args_list[0].GetString(); // CHECKs if not string
conflicts_data_fetcher_ = ConflictsDataFetcher::Create(
base::BindOnce(&ConflictsHandler::OnConflictsDataFetched,
weak_ptr_factory_.GetWeakPtr()));
}
void ConflictsHandler::OnConflictsDataFetched(base::Value::Dict results) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
DCHECK(!module_list_callback_id_.empty());
conflicts_data_fetcher_ = nullptr;
AllowJavascript();
ResolveJavascriptCallback(base::Value(module_list_callback_id_), results);
}
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