| // Copyright 2018 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CHROME_TEST_VIEWS_ACCESSIBILITY_CHECKER_H_ |
| #define CHROME_TEST_VIEWS_ACCESSIBILITY_CHECKER_H_ |
| |
| #include "base/scoped_observer.h" |
| #include "chrome/browser/ui/views/chrome_views_delegate.h" |
| #include "ui/views/widget/widget_observer.h" |
| |
| // Runs UI accessibility checks on |widget|. |
| // Adds a gtest failure if any check fails. |
| // Callers are not expected to assert/expect on failure. |
| void AddFailureOnWidgetAccessibilityError(views::Widget* widget); |
| |
| // Observe the creation of all widgets and ensure their view subtrees are |
| // checked for accessibility violations when they become visible or hidden. |
| // |
| // Accessibility violations will add a gtest failure. |
| class AccessibilityChecker : public ChromeViewsDelegate, |
| public views::WidgetObserver { |
| public: |
| AccessibilityChecker(); |
| ~AccessibilityChecker() override; |
| |
| // ChromeViewsDelegate: |
| void OnBeforeWidgetInit( |
| views::Widget::InitParams* params, |
| views::internal::NativeWidgetDelegate* delegate) override; |
| |
| // views::WidgetObserver: |
| void OnWidgetDestroying(views::Widget* widget) override; |
| void OnWidgetVisibilityChanged(views::Widget* widget, bool visible) override; |
| |
| private: |
| ScopedObserver<views::Widget, WidgetObserver> scoped_observer_; |
| |
| DISALLOW_COPY_AND_ASSIGN(AccessibilityChecker); |
| }; |
| |
| #endif // CHROME_TEST_VIEWS_ACCESSIBILITY_CHECKER_H_ |