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// Copyright (c) 2011 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.
#include <string>
#include "base/message_loop.h"
#include "base/string_util.h"
#include "base/utf_string_conversions.h"
#include "chrome/browser/extensions/extension_accessibility_api.h"
#include "chrome/browser/ui/views/accessibility_event_router_views.h"
#include "chrome/common/chrome_notification_types.h"
#include "chrome/test/base/testing_profile.h"
#include "content/public/browser/notification_registrar.h"
#include "content/common/notification_service.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "views/controls/button/text_button.h"
#include "views/layout/grid_layout.h"
#include "views/views_delegate.h"
#include "views/widget/native_widget.h"
#include "views/widget/root_view.h"
#include "views/widget/widget.h"
#include "views/widget/widget_delegate.h"
#if defined(TOOLKIT_VIEWS)
class AccessibilityViewsDelegate : public views::ViewsDelegate {
public:
AccessibilityViewsDelegate() {}
virtual ~AccessibilityViewsDelegate() {}
// Overridden from views::ViewsDelegate:
virtual ui::Clipboard* GetClipboard() const OVERRIDE { return NULL; }
virtual views::View* GetDefaultParentView() OVERRIDE { return NULL; }
virtual void SaveWindowPlacement(const views::Widget* window,
const std::string& window_name,
const gfx::Rect& bounds,
ui::WindowShowState show_state) OVERRIDE {
}
virtual bool GetSavedWindowPlacement(
const std::string& window_name,
gfx::Rect* bounds,
ui::WindowShowState* show_state) const OVERRIDE {
return false;
}
virtual void NotifyAccessibilityEvent(
views::View* view, ui::AccessibilityTypes::Event event_type) OVERRIDE {
AccessibilityEventRouterViews::GetInstance()->HandleAccessibilityEvent(
view, event_type);
}
virtual void NotifyMenuItemFocused(const string16& menu_name,
const string16& menu_item_name,
int item_index,
int item_count,
bool has_submenu) OVERRIDE {}
#if defined(OS_WIN)
virtual HICON GetDefaultWindowIcon() const OVERRIDE {
return NULL;
}
#endif
virtual void AddRef() OVERRIDE {}
virtual void ReleaseRef() OVERRIDE {}
virtual int GetDispositionForEvent(int event_flags) OVERRIDE {
return 0;
}
DISALLOW_COPY_AND_ASSIGN(AccessibilityViewsDelegate);
};
class AccessibilityWindowDelegate : public views::WidgetDelegate {
public:
explicit AccessibilityWindowDelegate(views::View* contents)
: contents_(contents) { }
// Overridden from views::WidgetDelegate:
virtual void DeleteDelegate() OVERRIDE { delete this; }
virtual views::View* GetContentsView() OVERRIDE { return contents_; }
virtual const views::Widget* GetWidget() const OVERRIDE {
return contents_->GetWidget();
}
virtual views::Widget* GetWidget() OVERRIDE { return contents_->GetWidget(); }
private:
views::View* contents_;
};
class AccessibilityEventRouterViewsTest
: public testing::Test,
public content::NotificationObserver {
public:
virtual void SetUp() {
views::ViewsDelegate::views_delegate = new AccessibilityViewsDelegate();
window_delegate_ = NULL;
}
virtual void TearDown() {
delete views::ViewsDelegate::views_delegate;
views::ViewsDelegate::views_delegate = NULL;
if (window_delegate_)
delete window_delegate_;
}
views::Widget* CreateWindowWithContents(views::View* contents) {
window_delegate_ = new AccessibilityWindowDelegate(contents);
return views::Widget::CreateWindowWithBounds(window_delegate_,
gfx::Rect(0, 0, 500, 500));
}
protected:
// Implement NotificationObserver::Observe and store information about a
// ACCESSIBILITY_CONTROL_FOCUSED event.
virtual void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
ASSERT_EQ(type, chrome::NOTIFICATION_ACCESSIBILITY_CONTROL_FOCUSED);
const AccessibilityControlInfo* info =
content::Details<const AccessibilityControlInfo>(details).ptr();
focus_event_count_++;
last_control_name_ = info->name();
}
MessageLoopForUI message_loop_;
int focus_event_count_;
std::string last_control_name_;
AccessibilityWindowDelegate* window_delegate_;
};
// Crashes on Linux Aura, http://crbug.com/100338
#if defined(USE_AURA) && !defined(OS_WIN)
#define MAYBE_TestFocusNotification DISABLED_TestFocusNotification
#else
#define MAYBE_TestFocusNotification TestFocusNotification
#endif
TEST_F(AccessibilityEventRouterViewsTest, MAYBE_TestFocusNotification) {
const char kButton1ASCII[] = "Button1";
const char kButton2ASCII[] = "Button2";
const char kButton3ASCII[] = "Button3";
const char kButton3NewASCII[] = "Button3New";
// Create a contents view with 3 buttons.
views::View* contents = new views::View();
views::NativeTextButton* button1 = new views::NativeTextButton(
NULL, ASCIIToWide(kButton1ASCII));
contents->AddChildView(button1);
views::NativeTextButton* button2 = new views::NativeTextButton(
NULL, ASCIIToWide(kButton2ASCII));
contents->AddChildView(button2);
views::NativeTextButton* button3 = new views::NativeTextButton(
NULL, ASCIIToWide(kButton3ASCII));
contents->AddChildView(button3);
// Put the view in a window.
views::Widget* window = CreateWindowWithContents(contents);
// Set focus to the first button initially.
button1->RequestFocus();
// Start listening to ACCESSIBILITY_CONTROL_FOCUSED notifications.
content::NotificationRegistrar registrar;
registrar.Add(this,
chrome::NOTIFICATION_ACCESSIBILITY_CONTROL_FOCUSED,
NotificationService::AllSources());
// Switch on accessibility event notifications.
ExtensionAccessibilityEventRouter* accessibility_event_router =
ExtensionAccessibilityEventRouter::GetInstance();
accessibility_event_router->SetAccessibilityEnabled(true);
// Create a profile and associate it with this window.
TestingProfile profile;
window->SetNativeWindowProperty(Profile::kProfileKey, &profile);
// Change the accessible name of button3.
button3->SetAccessibleName(ASCIIToUTF16(kButton3NewASCII));
// Advance focus to the next button and test that we got the
// expected notification with the name of button 2.
views::FocusManager* focus_manager = contents->GetWidget()->GetFocusManager();
focus_event_count_ = 0;
focus_manager->AdvanceFocus(false);
EXPECT_EQ(1, focus_event_count_);
EXPECT_EQ(kButton2ASCII, last_control_name_);
// Advance to button 3. Expect the new accessible name we assigned.
focus_manager->AdvanceFocus(false);
EXPECT_EQ(2, focus_event_count_);
EXPECT_EQ(kButton3NewASCII, last_control_name_);
// Advance to button 1 and check the notification.
focus_manager->AdvanceFocus(false);
EXPECT_EQ(3, focus_event_count_);
EXPECT_EQ(kButton1ASCII, last_control_name_);
}
#endif // defined(TOOLKIT_VIEWS)
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