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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_UI_WEBUI_SETTINGS_SETTINGS_DEFAULT_BROWSER_HANDLER_H_
#define CHROME_BROWSER_UI_WEBUI_SETTINGS_SETTINGS_DEFAULT_BROWSER_HANDLER_H_
#include "base/memory/weak_ptr.h"
#include "chrome/browser/shell_integration.h"
#include "chrome/browser/ui/webui/settings/settings_page_ui_handler.h"
#include "components/prefs/pref_change_registrar.h"
namespace content {
class WebUI;
}
namespace settings {
// The application used by the OS to open web documents (e.g. *.html)
// is the "default browser". This class is an API for the JavaScript
// settings code to change the default browser settings.
class DefaultBrowserHandler : public SettingsPageUIHandler {
public:
DefaultBrowserHandler();
DefaultBrowserHandler(const DefaultBrowserHandler&) = delete;
DefaultBrowserHandler& operator=(const DefaultBrowserHandler&) = delete;
~DefaultBrowserHandler() override;
// SettingsPageUIHandler implementation.
void RegisterMessages() override;
void OnJavascriptAllowed() override;
void OnJavascriptDisallowed() override;
protected:
// Subclasses should override this method.
virtual void RecordSetAsDefaultUMA();
private:
friend class TestingDefaultBrowserHandler;
// Called from WebUI to request the current state.
void RequestDefaultBrowserState(const base::Value::List& args);
// Makes this the default browser. Called from WebUI.
void SetAsDefaultBrowser(const base::Value::List& args);
// Called when there is a change to the default browser setting pref.
void OnDefaultBrowserSettingChange();
// Called with the default browser state when the DefaultBrowserWorker is
// done.
// |js_callback_id| is specified when the state was requested from WebUI.
void OnDefaultBrowserWorkerFinished(
const std::optional<std::string>& js_callback_id,
shell_integration::DefaultWebClientState state);
// Reference to a background worker that handles default browser settings.
scoped_refptr<shell_integration::DefaultBrowserWorker>
default_browser_worker_;
// Used to listen for changes to if the default browser setting is managed.
PrefChangeRegistrar local_state_pref_registrar_;
// Used to invalidate the DefaultBrowserWorker callback.
base::WeakPtrFactory<DefaultBrowserHandler> weak_ptr_factory_{this};
};
} // namespace settings
#endif // CHROME_BROWSER_UI_WEBUI_SETTINGS_SETTINGS_DEFAULT_BROWSER_HANDLER_H_
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