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// Copyright 2016 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 "third_party/blink/renderer/core/page/focus_controller.h"
#include <memory>
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_binding_for_core.h"
#include "third_party/blink/renderer/core/dom/shadow_root.h"
#include "third_party/blink/renderer/core/html/html_element.h"
#include "third_party/blink/renderer/core/testing/page_test_base.h"
namespace blink {
class FocusControllerTest : public PageTestBase {
private:
void SetUp() override { PageTestBase::SetUp(IntSize()); }
};
TEST_F(FocusControllerTest, SetInitialFocus) {
GetDocument().body()->SetInnerHTMLFromString("<input><textarea>");
auto* input = To<Element>(GetDocument().body()->firstChild());
// Set sequential focus navigation point before the initial focus.
input->focus();
input->blur();
GetFocusController().SetInitialFocus(kWebFocusTypeForward);
EXPECT_EQ(input, GetDocument().FocusedElement())
<< "We should ignore sequential focus navigation starting point in "
"setInitialFocus().";
}
TEST_F(FocusControllerTest, DoNotCrash1) {
GetDocument().body()->SetInnerHTMLFromString(
"<div id='host'></div>This test is for crbug.com/609012<p id='target' "
"tabindex='0'></p>");
// <div> with shadow root
auto* host = To<Element>(GetDocument().body()->firstChild());
host->AttachShadowRootInternal(ShadowRootType::kOpen);
// "This test is for crbug.com/609012"
Node* text = host->nextSibling();
// <p>
auto* target = To<Element>(text->nextSibling());
// Set sequential focus navigation point at text node.
GetDocument().SetSequentialFocusNavigationStartingPoint(text);
GetFocusController().AdvanceFocus(kWebFocusTypeForward);
EXPECT_EQ(target, GetDocument().FocusedElement())
<< "This should not hit assertion and finish properly.";
}
TEST_F(FocusControllerTest, DoNotCrash2) {
GetDocument().body()->SetInnerHTMLFromString(
"<p id='target' tabindex='0'></p>This test is for crbug.com/609012<div "
"id='host'></div>");
// <p>
auto* target = To<Element>(GetDocument().body()->firstChild());
// "This test is for crbug.com/609012"
Node* text = target->nextSibling();
// <div> with shadow root
auto* host = To<Element>(text->nextSibling());
host->AttachShadowRootInternal(ShadowRootType::kOpen);
// Set sequential focus navigation point at text node.
GetDocument().SetSequentialFocusNavigationStartingPoint(text);
GetFocusController().AdvanceFocus(kWebFocusTypeBackward);
EXPECT_EQ(target, GetDocument().FocusedElement())
<< "This should not hit assertion and finish properly.";
}
TEST_F(FocusControllerTest, SetActiveOnInactiveDocument) {
// Test for crbug.com/700334
GetDocument().Shutdown();
// Document::shutdown() detaches document from its frame, and thus
// document().page() becomes nullptr.
// Use DummyPageHolder's page to retrieve FocusController.
GetPage().GetFocusController().SetActive(true);
}
// This test is for crbug.com/733218
TEST_F(FocusControllerTest, SVGFocusableElementInForm) {
GetDocument().body()->SetInnerHTMLFromString(
"<form>"
"<input id='first'>"
"<svg width='100px' height='100px' tabindex='0'>"
"<circle cx='50' cy='50' r='30' />"
"</svg>"
"<input id='last'>"
"</form>");
auto* form = To<Element>(GetDocument().body()->firstChild());
auto* first = To<Element>(form->firstChild());
auto* last = To<Element>(form->lastChild());
Element* next = GetFocusController().NextFocusableElementInForm(
first, kWebFocusTypeForward);
EXPECT_EQ(next, last)
<< "SVG Element should be skipped even when focusable in form.";
Element* prev = GetFocusController().NextFocusableElementInForm(
next, kWebFocusTypeBackward);
EXPECT_EQ(prev, first)
<< "SVG Element should be skipped even when focusable in form.";
}
TEST_F(FocusControllerTest, FindFocusableAfterElement) {
GetDocument().body()->SetInnerHTMLFromString(
"<input id='first'><div id='second'></div><input id='third'><div "
"id='fourth' tabindex='0'></div>");
Element* first = GetElementById("first");
Element* second = GetElementById("second");
Element* third = GetElementById("third");
Element* fourth = GetElementById("fourth");
EXPECT_EQ(third, GetFocusController().FindFocusableElementAfter(
*first, kWebFocusTypeForward));
EXPECT_EQ(third, GetFocusController().FindFocusableElementAfter(
*second, kWebFocusTypeForward));
EXPECT_EQ(fourth, GetFocusController().FindFocusableElementAfter(
*third, kWebFocusTypeForward));
EXPECT_EQ(nullptr, GetFocusController().FindFocusableElementAfter(
*fourth, kWebFocusTypeForward));
EXPECT_EQ(nullptr, GetFocusController().FindFocusableElementAfter(
*first, kWebFocusTypeBackward));
EXPECT_EQ(first, GetFocusController().FindFocusableElementAfter(
*second, kWebFocusTypeBackward));
EXPECT_EQ(first, GetFocusController().FindFocusableElementAfter(
*third, kWebFocusTypeBackward));
EXPECT_EQ(third, GetFocusController().FindFocusableElementAfter(
*fourth, kWebFocusTypeBackward));
EXPECT_EQ(nullptr, GetFocusController().FindFocusableElementAfter(
*first, kWebFocusTypeNone));
}
} // namespace blink
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