third_party/blink/renderer/core/layout/layout_text_control_test.cc

// 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.

#include "third_party/blink/renderer/core/layout/layout_text_control.h"

#include "build/build_config.h"
#include "third_party/blink/renderer/core/html/forms/html_input_element.h"
#include "third_party/blink/renderer/core/testing/core_unit_test_helper.h"

namespace blink {

namespace {

class LayoutTextControlTest : public RenderingTest {
 protected:
  HTMLInputElement* GetHTMLInputElementById(const char* id) {
    return To<HTMLInputElement>(GetDocument().getElementById(id));
  }
  // Return the LayoutText from inside an HTMLInputElement's user agent shadow
  // tree.
  LayoutText* GetInnerLayoutText(HTMLInputElement* input) {
    return ToLayoutText(
        input->InnerEditorElement()->GetLayoutObject()->SlowFirstChild());
  }
};

TEST_F(LayoutTextControlTest,
       ChangingPseudoSelectionStyleShouldInvalidateSelection) {
  SetBodyInnerHTML(R"HTML(
    <style>
      input::selection { background-color: blue; }
      .pseudoSelection::selection { background-color: green; }
    </style>
    <input id="input" type="text" value="AAAAAAAAAAAA">
  )HTML");

  auto* inputElement = GetHTMLInputElementById("input");
  inputElement->focus();
  inputElement->SetSelectionRange(1, 3);
  UpdateAllLifecyclePhasesForTest();

  auto* selectedText = GetInnerLayoutText(inputElement);
  EXPECT_FALSE(selectedText->ShouldInvalidateSelection());

  inputElement->setAttribute(html_names::kClassAttr, "pseudoSelection");
  GetDocument().View()->UpdateLifecycleToLayoutClean(
      DocumentUpdateReason::kTest);
  EXPECT_TRUE(selectedText->ShouldInvalidateSelection());

  UpdateAllLifecyclePhasesForTest();
  EXPECT_FALSE(selectedText->ShouldInvalidateSelection());
}

TEST_F(LayoutTextControlTest,
       AddingPseudoSelectionStyleShouldInvalidateSelection) {
  SetBodyInnerHTML(R"HTML(
    <style>
      .pseudoSelection::selection { background-color: green; }
    </style>
    <input id="input" type="text" value="AAAAAAAAAAAA">
  )HTML");

  auto* inputElement = GetHTMLInputElementById("input");
  inputElement->focus();
  inputElement->SetSelectionRange(1, 3);
  UpdateAllLifecyclePhasesForTest();

  auto* selectedText = GetInnerLayoutText(inputElement);
  EXPECT_FALSE(selectedText->ShouldInvalidateSelection());

  inputElement->setAttribute(html_names::kClassAttr, "pseudoSelection");
  GetDocument().View()->UpdateLifecycleToLayoutClean(
      DocumentUpdateReason::kTest);
  EXPECT_TRUE(selectedText->ShouldInvalidateSelection());

  UpdateAllLifecyclePhasesForTest();
  EXPECT_FALSE(selectedText->ShouldInvalidateSelection());
}

TEST_F(LayoutTextControlTest,
       RemovingPseudoSelectionStyleShouldInvalidateSelection) {
  SetBodyInnerHTML(R"HTML(
    <style>
      .pseudoSelection::selection { background-color: green; }
    </style>
    <input id="input" type="text" class="pseudoSelection" value="AAAAAAAAAAAA">
  )HTML");

  auto* inputElement = GetHTMLInputElementById("input");
  inputElement->focus();
  inputElement->SetSelectionRange(1, 3);
  UpdateAllLifecyclePhasesForTest();

  auto* selectedText = GetInnerLayoutText(inputElement);
  EXPECT_FALSE(selectedText->ShouldInvalidateSelection());

  inputElement->removeAttribute(html_names::kClassAttr);
  GetDocument().View()->UpdateLifecycleToLayoutClean(
      DocumentUpdateReason::kTest);
  EXPECT_TRUE(selectedText->ShouldInvalidateSelection());

  UpdateAllLifecyclePhasesForTest();
  EXPECT_FALSE(selectedText->ShouldInvalidateSelection());
}

TEST_F(LayoutTextControlTest, HitTestSearchInput) {
  SetBodyInnerHTML(R"HTML(
    <input id="input" type="search"
           style="border-width: 20px; font-size: 30px; padding: 0">
  )HTML");

  auto* input = GetHTMLInputElementById("input");
  HitTestResult result;
  HitTestLocation location(PhysicalOffset(40, 30));
  EXPECT_TRUE(input->GetLayoutObject()->HitTestAllPhases(result, location,
                                                         PhysicalOffset()));
  EXPECT_EQ(PhysicalOffset(20, 10), result.LocalPoint());
  EXPECT_EQ(input->InnerEditorElement(), result.InnerElement());
}

}  // anonymous namespace

}  // namespace blink