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// Copyright 2021 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_ASH_PARENT_ACCESS_PARENT_ACCESS_DIALOG_H_
#define CHROME_BROWSER_UI_WEBUI_ASH_PARENT_ACCESS_PARENT_ACCESS_DIALOG_H_
#include <memory>
#include <string>
#include "base/functional/callback_forward.h"
#include "base/time/time.h"
#include "chrome/browser/ui/webui/ash/parent_access/parent_access_ui.mojom.h"
#include "chrome/browser/ui/webui/ash/parent_access/parent_access_ui_handler_delegate.h"
#include "chrome/browser/ui/webui/ash/system_web_dialog/system_web_dialog_delegate.h"
#include "ui/base/mojom/ui_base_types.mojom-shared.h"
namespace ash {
class WindowDimmer;
// Dialog which embeds the Parent Access UI, which verifies a
// parent during a child session.
class ParentAccessDialog : public ParentAccessUiHandlerDelegate,
public SystemWebDialogDelegate {
public:
struct Result {
// The status of the result.
enum class Status {
kApproved, // The parent was verified and they approved.
kDeclined, // The request was explicitly declined by the parent.
kCanceled, // The request was canceled/dismissed by the parent.
kDisabled, // Making a request has been disabled by the parent.
kError, // An error occurred while handling the request.
};
Status status = Status::kCanceled;
// The Parent Access Token. Only set if status is kVerified.
std::string parent_access_token = "";
// The UTC timestamp at which the token expires.
base::Time parent_access_token_expire_timestamp;
};
// Callback for the result of the dialog.
using Callback = base::OnceCallback<void(std::unique_ptr<Result>)>;
static ParentAccessDialog* GetInstance();
explicit ParentAccessDialog(const ParentAccessDialog&) = delete;
ParentAccessDialog& operator=(const ParentAccessDialog&) = delete;
// ui::WebDialogDelegate:
ui::mojom::ModalType GetDialogModalType() const override;
void GetDialogSize(gfx::Size* size) const override;
bool ShouldCloseDialogOnEscape() const override;
bool ShouldShowDialogTitle() const override;
bool ShouldShowCloseButton() const override;
// ParentAccessUiHandlerDelegate:
parent_access_ui::mojom::ParentAccessParamsPtr CloneParentAccessParams()
override;
void SetApproved(const std::string& parent_access_token,
const base::Time& expire_timestamp) override;
void SetDeclined() override;
void SetCanceled() override;
void SetDisabled() override;
void SetError() override;
parent_access_ui::mojom::ParentAccessParams* GetParentAccessParamsForTest()
const;
explicit ParentAccessDialog(
parent_access_ui::mojom::ParentAccessParamsPtr params,
Callback callback);
// Creates and shows additional dimmer underneath the dialog.
void ShowDimmer();
protected:
~ParentAccessDialog() override;
private:
void CloseWithResult(std::unique_ptr<Result> result);
parent_access_ui::mojom::ParentAccessParamsPtr parent_access_params_;
Callback callback_;
// The dimmer shown underneath the dialog in order to mitigate spoofing by the
// malicious website. The dimmer clearly renders over the browser UI.
std::unique_ptr<WindowDimmer> dimmer_;
// The Parent Access Dialog result passed back to the caller when the dialog
// completes.
std::unique_ptr<Result> result_;
};
// Interface that provides the ParentAccessDialog to external clients.
// The provider should be used to show the dialog. The default implementation
// is can be overridden by tests to provide a fake implementation like this:
//
// class FakeParentAccessDialogProvider
// : public ash::ParentAccessDialogProvider {
// public:
// ParentAccessDialogProvider::ShowError Show(
// parent_access_ui::mojom::ParentAccessParamsPtr params,
// ash::ParentAccessDialog::Callback callback) override {}
// }
class ParentAccessDialogProvider {
public:
// Error state returned by the Show() function.
enum class ShowError { kNone, kDialogAlreadyVisible, kNotAChildUser };
ParentAccessDialogProvider() = default;
ParentAccessDialogProvider(const ParentAccessDialogProvider& other) = delete;
ParentAccessDialogProvider& operator=(
const ParentAccessDialogProvider& other) = delete;
virtual ~ParentAccessDialogProvider() = default;
// Shows the dialog. If the dialog is already displayed, this returns an
// error. virtual so it can be overridden for tests to fake dialog behavior.
virtual ShowError Show(parent_access_ui::mojom::ParentAccessParamsPtr params,
ParentAccessDialog::Callback callback);
// Used for metrics. Those values are logged to UMA. Entries should not be
// renumbered and numeric values should never be reused. Please keep in sync
// with "FamilyLinkUserParentAccessWidgetShowDialogError" in
// src/tools/metrics/histograms/enums.xml.
enum class ShowErrorType {
kUnknown = 0,
kAlreadyVisible = 1,
kNotAChildUser = 2,
kMaxValue = kNotAChildUser
};
};
} // namespace ash
#endif // CHROME_BROWSER_UI_WEBUI_ASH_PARENT_ACCESS_PARENT_ACCESS_DIALOG_H_
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