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content / public / test / test_web_ui_listener_observer.h [blame]
// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_PUBLIC_TEST_TEST_WEB_UI_LISTENER_OBSERVER_H_
#define CONTENT_PUBLIC_TEST_TEST_WEB_UI_LISTENER_OBSERVER_H_
#include <string>
#include <vector>
#include "base/memory/raw_ptr.h"
#include "base/run_loop.h"
#include "base/values.h"
#include "content/public/test/test_web_ui.h"
namespace content {
// A test observer that allows blocking waits on WebUI calls back to javascript
// listeners using cr.webUIListenerCallback.
class TestWebUIListenerObserver : public TestWebUI::JavascriptCallObserver {
public:
// Constructs a TestWebUIListenerObserver which will observer |web_ui| for
// cr.webUIListenerCallback calls with the first argument |listener_name|.
TestWebUIListenerObserver(content::TestWebUI* web_ui,
const std::string& listener_name);
~TestWebUIListenerObserver() override;
TestWebUIListenerObserver(const TestWebUIListenerObserver& other) = delete;
TestWebUIListenerObserver& operator=(const TestWebUIListenerObserver& other) =
delete;
// Waits for the listener call to happen.
void Wait();
// Only callable after Wait() has returned. Contains the arguments passed to
// the listener.
base::Value::List& args() { return call_args_.value(); }
private:
void OnJavascriptFunctionCalled(
const TestWebUI::CallData& call_data) override;
raw_ptr<content::TestWebUI> web_ui_;
std::string listener_name_;
base::RunLoop run_loop_;
// Only filled when a matching listener call has been observed.
std::optional<base::Value::List> call_args_;
};
} // namespace content
#endif // CONTENT_PUBLIC_TEST_TEST_WEB_UI_LISTENER_OBSERVER_H_