third_party/WebKit/Source/core/editing/InputMethodControllerTest.cpp - chromium/src - Git at Google

 // Copyright 2014 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 "core/editing/InputMethodController.h"

 #include "core/dom/Document.h"
 #include "core/dom/Element.h"
 #include "core/dom/Range.h"
 #include "core/editing/FrameSelection.h"
 #include "core/events/MouseEvent.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/Settings.h"
 #include "core/html/HTMLInputElement.h"
 #include "core/testing/DummyPageHolder.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include <memory>

 namespace blink {

 class InputMethodControllerTest : public ::testing::Test {
 protected:
     InputMethodController& controller() { return frame().inputMethodController(); }
     Document& document() const { return *m_document; }
     LocalFrame& frame() const { return m_dummyPageHolder->frame(); }
     Element* insertHTMLElement(const char* elementCode, const char* elementId);

 private:
     void SetUp() override;

     std::unique_ptr<DummyPageHolder> m_dummyPageHolder;
     Persistent<Document> m_document;
 };

 void InputMethodControllerTest::SetUp()
 {
     m_dummyPageHolder = DummyPageHolder::create(IntSize(800, 600));
     m_document = &m_dummyPageHolder->document();
     DCHECK(m_document);
 }

 Element* InputMethodControllerTest::insertHTMLElement(
     const char* elementCode, const char* elementId)
 {
     document().write(elementCode);
     document().updateStyleAndLayout();
     Element* element = document().getElementById(elementId);
     element->focus();
     return element;
 }

 TEST_F(InputMethodControllerTest, BackspaceFromEndOfInput)
 {
     HTMLInputElement* input = toHTMLInputElement(
         insertHTMLElement("<input id='sample'>", "sample"));

     input->setValue("fooX");
     controller().setEditableSelectionOffsets(PlainTextRange(4, 4));
     EXPECT_STREQ("fooX", input->value().utf8().data());
     controller().extendSelectionAndDelete(0, 0);
     EXPECT_STREQ("fooX", input->value().utf8().data());

     input->setValue("fooX");
     controller().setEditableSelectionOffsets(PlainTextRange(4, 4));
     EXPECT_STREQ("fooX", input->value().utf8().data());
     controller().extendSelectionAndDelete(1, 0);
     EXPECT_STREQ("foo", input->value().utf8().data());

     input->setValue(String::fromUTF8("foo\xE2\x98\x85")); // U+2605 == "black star"
     controller().setEditableSelectionOffsets(PlainTextRange(4, 4));
     EXPECT_STREQ("foo\xE2\x98\x85", input->value().utf8().data());
     controller().extendSelectionAndDelete(1, 0);
     EXPECT_STREQ("foo", input->value().utf8().data());

     input->setValue(String::fromUTF8("foo\xF0\x9F\x8F\x86")); // U+1F3C6 == "trophy"
     controller().setEditableSelectionOffsets(PlainTextRange(4, 4));
     EXPECT_STREQ("foo\xF0\x9F\x8F\x86", input->value().utf8().data());
     controller().extendSelectionAndDelete(1, 0);
     EXPECT_STREQ("foo", input->value().utf8().data());

     input->setValue(String::fromUTF8("foo\xE0\xB8\x81\xE0\xB9\x89")); // composed U+0E01 "ka kai" + U+0E49 "mai tho"
     controller().setEditableSelectionOffsets(PlainTextRange(4, 4));
     EXPECT_STREQ("foo\xE0\xB8\x81\xE0\xB9\x89", input->value().utf8().data());
     controller().extendSelectionAndDelete(1, 0);
     EXPECT_STREQ("foo", input->value().utf8().data());

     input->setValue("fooX");
     controller().setEditableSelectionOffsets(PlainTextRange(4, 4));
     EXPECT_STREQ("fooX", input->value().utf8().data());
     controller().extendSelectionAndDelete(0, 1);
     EXPECT_STREQ("fooX", input->value().utf8().data());
 }

 TEST_F(InputMethodControllerTest, SetCompositionFromExistingText)
 {
     Element* div = insertHTMLElement(
         "<div id='sample' contenteditable='true'>hello world</div>", "sample");

     Vector<CompositionUnderline> underlines;
     underlines.append(CompositionUnderline(0, 5, Color(255, 0, 0), false, 0));
     controller().setCompositionFromExistingText(underlines, 0, 5);

     Range* range = controller().compositionRange();
     EXPECT_EQ(0, range->startOffset());
     EXPECT_EQ(5, range->endOffset());

     PlainTextRange plainTextRange(PlainTextRange::create(*div, *range));
     EXPECT_EQ(0u, plainTextRange.start());
     EXPECT_EQ(5u, plainTextRange.end());
 }

 TEST_F(InputMethodControllerTest, SelectionOnConfirmExistingText)
 {
     insertHTMLElement(
         "<div id='sample' contenteditable='true'>hello world</div>", "sample");

     Vector<CompositionUnderline> underlines;
     underlines.append(CompositionUnderline(0, 5, Color(255, 0, 0), false, 0));
     controller().setCompositionFromExistingText(underlines, 0, 5);

     controller().confirmComposition();
     EXPECT_EQ(0, frame().selection().start().computeOffsetInContainerNode());
     EXPECT_EQ(0, frame().selection().end().computeOffsetInContainerNode());
 }

 TEST_F(InputMethodControllerTest, DeleteBySettingEmptyComposition)
 {
     HTMLInputElement* input = toHTMLInputElement(
         insertHTMLElement("<input id='sample'>", "sample"));

     input->setValue("foo ");
     controller().setEditableSelectionOffsets(PlainTextRange(4, 4));
     EXPECT_STREQ("foo ", input->value().utf8().data());
     controller().extendSelectionAndDelete(0, 0);
     EXPECT_STREQ("foo ", input->value().utf8().data());

     input->setValue("foo ");
     controller().setEditableSelectionOffsets(PlainTextRange(4, 4));
     EXPECT_STREQ("foo ", input->value().utf8().data());
     controller().extendSelectionAndDelete(1, 0);
     EXPECT_STREQ("foo", input->value().utf8().data());

     Vector<CompositionUnderline> underlines;
     underlines.append(CompositionUnderline(0, 3, Color(255, 0, 0), false, 0));
     controller().setCompositionFromExistingText(underlines, 0, 3);

     controller().setComposition(String(""), underlines, 0, 3);

     EXPECT_STREQ("", input->value().utf8().data());
 }

 TEST_F(InputMethodControllerTest, SetCompositionFromExistingTextWithCollapsedWhiteSpace)
 {
     // Creates a div with one leading new line char. The new line char is hidden
     // from the user and IME, but is visible to InputMethodController.
     Element* div = insertHTMLElement(
         "<div id='sample' contenteditable='true'>\nhello world</div>", "sample");

     Vector<CompositionUnderline> underlines;
     underlines.append(CompositionUnderline(0, 5, Color(255, 0, 0), false, 0));
     controller().setCompositionFromExistingText(underlines, 0, 5);

     Range* range = controller().compositionRange();
     EXPECT_EQ(1, range->startOffset());
     EXPECT_EQ(6, range->endOffset());

     PlainTextRange plainTextRange(PlainTextRange::create(*div, *range));
     EXPECT_EQ(0u, plainTextRange.start());
     EXPECT_EQ(5u, plainTextRange.end());
 }

 TEST_F(InputMethodControllerTest, SetCompositionFromExistingTextWithInvalidOffsets)
 {
     insertHTMLElement("<div id='sample' contenteditable='true'>test</div>", "sample");

     Vector<CompositionUnderline> underlines;
     underlines.append(CompositionUnderline(7, 8, Color(255, 0, 0), false, 0));
     controller().setCompositionFromExistingText(underlines, 7, 8);

     EXPECT_FALSE(controller().compositionRange());
 }

 TEST_F(InputMethodControllerTest, ConfirmPasswordComposition)
 {
     HTMLInputElement* input = toHTMLInputElement(
         insertHTMLElement("<input id='sample' type='password' size='24'>", "sample"));

     Vector<CompositionUnderline> underlines;
     underlines.append(CompositionUnderline(0, 5, Color(255, 0, 0), false, 0));
     controller().setComposition("foo", underlines, 0, 3);
     controller().confirmComposition();

     EXPECT_STREQ("foo", input->value().utf8().data());
 }

 TEST_F(InputMethodControllerTest, SetCompositionForInputWithDifferentNewCursorPositions)
 {
     HTMLInputElement* input = toHTMLInputElement(
         insertHTMLElement("<input id='sample'>", "sample"));

     input->setValue("hello");
     controller().setEditableSelectionOffsets(PlainTextRange(2, 2));
     EXPECT_STREQ("hello", input->value().utf8().data());
     EXPECT_EQ(2u, controller().getSelectionOffsets().start());
     EXPECT_EQ(2u, controller().getSelectionOffsets().end());

     Vector<CompositionUnderline> underlines;
     underlines.append(CompositionUnderline(0, 2, Color(255, 0, 0), false, 0));

     // The cursor exceeds left boundary.
     // "*heABllo", where * stands for cursor.
     controller().setComposition("AB", underlines, -100, -100);
     EXPECT_STREQ("heABllo", input->value().utf8().data());
     EXPECT_EQ(0u, controller().getSelectionOffsets().start());
     EXPECT_EQ(0u, controller().getSelectionOffsets().end());

     // The cursor is on left boundary.
     // "*heABllo".
     controller().setComposition("AB", underlines, -2, -2);
     EXPECT_STREQ("heABllo", input->value().utf8().data());
     EXPECT_EQ(0u, controller().getSelectionOffsets().start());
     EXPECT_EQ(0u, controller().getSelectionOffsets().end());

     // The cursor is before the composing text.
     // "he*ABllo".
     controller().setComposition("AB", underlines, 0, 0);
     EXPECT_STREQ("heABllo", input->value().utf8().data());
     EXPECT_EQ(2u, controller().getSelectionOffsets().start());
     EXPECT_EQ(2u, controller().getSelectionOffsets().end());

     // The cursor is after the composing text.
     // "heAB*llo".
     controller().setComposition("AB", underlines, 2, 2);
     EXPECT_STREQ("heABllo", input->value().utf8().data());
     EXPECT_EQ(4u, controller().getSelectionOffsets().start());
     EXPECT_EQ(4u, controller().getSelectionOffsets().end());

     // The cursor is on right boundary.
     // "heABllo*".
     controller().setComposition("AB", underlines, 5, 5);
     EXPECT_STREQ("heABllo", input->value().utf8().data());
     EXPECT_EQ(7u, controller().getSelectionOffsets().start());
     EXPECT_EQ(7u, controller().getSelectionOffsets().end());

     // The cursor exceeds right boundary.
     // "heABllo*".
     controller().setComposition("AB", underlines, 100, 100);
     EXPECT_STREQ("heABllo", input->value().utf8().data());
     EXPECT_EQ(7u, controller().getSelectionOffsets().start());
     EXPECT_EQ(7u, controller().getSelectionOffsets().end());
 }

 TEST_F(InputMethodControllerTest, SetCompositionForContentEditableWithDifferentNewCursorPositions)
 {
     // There are 7 nodes and 5+1+5+1+3+4+3 characters: "hello", '\n', "world", "\n", "012", "3456", "789".
     Element* div = insertHTMLElement(
         "<div id='sample' contenteditable='true'>"
         "hello"
         "<div id='sample2' contenteditable='true'>world"
         "<p>012<b>3456</b><i>789</i></p>"
         "</div>"
         "</div>",
         "sample");

     controller().setEditableSelectionOffsets(PlainTextRange(17, 17));
     EXPECT_STREQ("hello\nworld\n0123456789", div->innerText().utf8().data());
     EXPECT_EQ(17u, controller().getSelectionOffsets().start());
     EXPECT_EQ(17u, controller().getSelectionOffsets().end());

     Vector<CompositionUnderline> underlines;
     underlines.append(CompositionUnderline(0, 2, Color(255, 0, 0), false, 0));

     // The cursor exceeds left boundary.
     // "*hello\nworld\n01234AB56789", where * stands for cursor.
     controller().setComposition("AB", underlines, -100, -100);
     EXPECT_STREQ("hello\nworld\n01234AB56789", div->innerText().utf8().data());
     EXPECT_EQ(0u, controller().getSelectionOffsets().start());
     EXPECT_EQ(0u, controller().getSelectionOffsets().end());

     // The cursor is on left boundary.
     // "*hello\nworld\n01234AB56789".
     controller().setComposition("AB", underlines, -17, -17);
     EXPECT_STREQ("hello\nworld\n01234AB56789", div->innerText().utf8().data());
     EXPECT_EQ(0u, controller().getSelectionOffsets().start());
     EXPECT_EQ(0u, controller().getSelectionOffsets().end());

     // The cursor is in the 1st node.
     // "he*llo\nworld\n01234AB56789".
     controller().setComposition("AB", underlines, -15, -15);
     EXPECT_STREQ("hello\nworld\n01234AB56789", div->innerText().utf8().data());
     EXPECT_EQ(2u, controller().getSelectionOffsets().start());
     EXPECT_EQ(2u, controller().getSelectionOffsets().end());

     // The cursor is on right boundary of the 1st node.
     // "hello*\nworld\n01234AB56789".
     controller().setComposition("AB", underlines, -12, -12);
     EXPECT_STREQ("hello\nworld\n01234AB56789", div->innerText().utf8().data());
     EXPECT_EQ(5u, controller().getSelectionOffsets().start());
     EXPECT_EQ(5u, controller().getSelectionOffsets().end());

     // The cursor is on right boundary of the 2nd node.
     // "hello\n*world\n01234AB56789".
     controller().setComposition("AB", underlines, -11, -11);
     EXPECT_STREQ("hello\nworld\n01234AB56789", div->innerText().utf8().data());
     EXPECT_EQ(6u, controller().getSelectionOffsets().start());
     EXPECT_EQ(6u, controller().getSelectionOffsets().end());

     // The cursor is on right boundary of the 3rd node.
     // "hello\nworld*\n01234AB56789".
     controller().setComposition("AB", underlines, -6, -6);
     EXPECT_STREQ("hello\nworld\n01234AB56789", div->innerText().utf8().data());
     EXPECT_EQ(11u, controller().getSelectionOffsets().start());
     EXPECT_EQ(11u, controller().getSelectionOffsets().end());

     // The cursor is on right boundary of the 4th node.
     // "hello\nworld\n*01234AB56789".
     controller().setComposition("AB", underlines, -5, -5);
     EXPECT_STREQ("hello\nworld\n01234AB56789", div->innerText().utf8().data());
     EXPECT_EQ(12u, controller().getSelectionOffsets().start());
     EXPECT_EQ(12u, controller().getSelectionOffsets().end());

     // The cursor is before the composing text.
     // "hello\nworld\n01234*AB56789".
     controller().setComposition("AB", underlines, 0, 0);
     EXPECT_STREQ("hello\nworld\n01234AB56789", div->innerText().utf8().data());
     EXPECT_EQ(17u, controller().getSelectionOffsets().start());
     EXPECT_EQ(17u, controller().getSelectionOffsets().end());

     // The cursor is after the composing text.
     // "hello\nworld\n01234AB*56789".
     controller().setComposition("AB", underlines, 2, 2);
     EXPECT_STREQ("hello\nworld\n01234AB56789", div->innerText().utf8().data());
     EXPECT_EQ(19u, controller().getSelectionOffsets().start());
     EXPECT_EQ(19u, controller().getSelectionOffsets().end());

     // The cursor is on right boundary.
     // "hello\nworld\n01234AB56789*".
     controller().setComposition("AB", underlines, 7, 7);
     EXPECT_STREQ("hello\nworld\n01234AB56789", div->innerText().utf8().data());
     EXPECT_EQ(24u, controller().getSelectionOffsets().start());
     EXPECT_EQ(24u, controller().getSelectionOffsets().end());

     // The cursor exceeds right boundary.
     // "hello\nworld\n01234AB56789*".
     controller().setComposition("AB", underlines, 100, 100);
     EXPECT_STREQ("hello\nworld\n01234AB56789", div->innerText().utf8().data());
     EXPECT_EQ(24u, controller().getSelectionOffsets().start());
     EXPECT_EQ(24u, controller().getSelectionOffsets().end());
 }

 TEST_F(InputMethodControllerTest, SetCompositionWithEmptyText)
 {
     Element* div = insertHTMLElement(
         "<div id='sample' contenteditable='true'>hello</div>",
         "sample");

     controller().setEditableSelectionOffsets(PlainTextRange(2, 2));
     EXPECT_STREQ("hello", div->innerText().utf8().data());
     EXPECT_EQ(2u, controller().getSelectionOffsets().start());
     EXPECT_EQ(2u, controller().getSelectionOffsets().end());

     Vector<CompositionUnderline> underlines0;
     underlines0.append(CompositionUnderline(0, 0, Color(255, 0, 0), false, 0));
     Vector<CompositionUnderline> underlines2;
     underlines2.append(CompositionUnderline(0, 2, Color(255, 0, 0), false, 0));

     controller().setComposition("AB", underlines2, 2, 2);
     // With previous composition.
     controller().setComposition("", underlines0, 2, 2);
     EXPECT_STREQ("hello", div->innerText().utf8().data());
     EXPECT_EQ(4u, controller().getSelectionOffsets().start());
     EXPECT_EQ(4u, controller().getSelectionOffsets().end());

     // Without previous composition.
     controller().setComposition("", underlines0, -1, -1);
     EXPECT_STREQ("hello", div->innerText().utf8().data());
     EXPECT_EQ(3u, controller().getSelectionOffsets().start());
     EXPECT_EQ(3u, controller().getSelectionOffsets().end());
 }

 TEST_F(InputMethodControllerTest, CompositionInputEventIsComposing)
 {
     document().settings()->setScriptEnabled(true);
     Element* editable = insertHTMLElement("<div id='sample' contentEditable='true'></div>", "sample");
     Element* script = document().createElement("script", ASSERT_NO_EXCEPTION);
     script->setInnerHTML(
         "document.getElementById('sample').addEventListener('beforeinput', function(event) {"
         "    document.title = `beforeinput.isComposing:${event.isComposing};`;"
         "});"
         "document.getElementById('sample').addEventListener('input', function(event) {"
         "    document.title += `input.isComposing:${event.isComposing};`;"
         "});",
         ASSERT_NO_EXCEPTION);
     document().body()->appendChild(script, ASSERT_NO_EXCEPTION);
     document().view()->updateAllLifecyclePhases();

     // Simulate composition in the |contentEditable|.
     Vector<CompositionUnderline> underlines;
     underlines.append(CompositionUnderline(0, 5, Color(255, 0, 0), false, 0));
     editable->focus();

     document().setTitle(emptyString());
     controller().setComposition("foo", underlines, 0, 3);
     EXPECT_STREQ("beforeinput.isComposing:true;input.isComposing:true;", document().title().utf8().data());

     document().setTitle(emptyString());
     controller().confirmComposition();
     // Last pair of InputEvent should also be inside composition scope.
     EXPECT_STREQ("beforeinput.isComposing:true;input.isComposing:true;", document().title().utf8().data());
 }

 TEST_F(InputMethodControllerTest, CompositionInputEventData)
 {
     document().settings()->setScriptEnabled(true);
     Element* editable = insertHTMLElement("<div id='sample' contentEditable='true'></div>", "sample");
     Element* script = document().createElement("script", ASSERT_NO_EXCEPTION);
     script->setInnerHTML(
         "document.getElementById('sample').addEventListener('beforeinput', function(event) {"
         "    document.title = `beforeinput.data:${event.data};`;"
         "});"
         "document.getElementById('sample').addEventListener('input', function(event) {"
         "    document.title += `input.data:${event.data};`;"
         "});",
         ASSERT_NO_EXCEPTION);
     document().body()->appendChild(script, ASSERT_NO_EXCEPTION);
     document().view()->updateAllLifecyclePhases();

     // Simulate composition in the |contentEditable|.
     Vector<CompositionUnderline> underlines;
     underlines.append(CompositionUnderline(0, 5, Color(255, 0, 0), false, 0));
     editable->focus();

     document().setTitle(emptyString());
     controller().setComposition("n", underlines, 0, 1);
     EXPECT_STREQ("beforeinput.data:n;input.data:n;", document().title().utf8().data());

     document().setTitle(emptyString());
     controller().setComposition("ni", underlines, 0, 1);
     EXPECT_STREQ("beforeinput.data:ni;input.data:ni;", document().title().utf8().data());

     document().setTitle(emptyString());
     controller().confirmComposition();
     EXPECT_STREQ("beforeinput.data:ni;input.data:ni;", document().title().utf8().data());
 }

 } // namespace blink
	// Copyright 2014 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 "core/editing/InputMethodController.h"

	#include "core/dom/Document.h"
	#include "core/dom/Element.h"
	#include "core/dom/Range.h"
	#include "core/editing/FrameSelection.h"
	#include "core/events/MouseEvent.h"
	#include "core/frame/FrameView.h"
	#include "core/frame/LocalFrame.h"
	#include "core/frame/Settings.h"
	#include "core/html/HTMLInputElement.h"
	#include "core/testing/DummyPageHolder.h"
	#include "testing/gtest/include/gtest/gtest.h"
	#include <memory>

	namespace blink {

	class InputMethodControllerTest : public ::testing::Test {
	protected:
	InputMethodController& controller() { return frame().inputMethodController(); }
	Document& document() const { return *m_document; }
	LocalFrame& frame() const { return m_dummyPageHolder->frame(); }
	Element* insertHTMLElement(const char* elementCode, const char* elementId);

	private:
	void SetUp() override;

	std::unique_ptr<DummyPageHolder> m_dummyPageHolder;
	Persistent<Document> m_document;
	};

	void InputMethodControllerTest::SetUp()
	{
	m_dummyPageHolder = DummyPageHolder::create(IntSize(800, 600));
	m_document = &m_dummyPageHolder->document();
	DCHECK(m_document);
	}

	Element* InputMethodControllerTest::insertHTMLElement(
	const char* elementCode, const char* elementId)
	{
	document().write(elementCode);
	document().updateStyleAndLayout();
	Element* element = document().getElementById(elementId);
	element->focus();
	return element;
	}

	TEST_F(InputMethodControllerTest, BackspaceFromEndOfInput)
	{
	HTMLInputElement* input = toHTMLInputElement(
	insertHTMLElement("<input id='sample'>", "sample"));

	input->setValue("fooX");
	controller().setEditableSelectionOffsets(PlainTextRange(4, 4));
	EXPECT_STREQ("fooX", input->value().utf8().data());
	controller().extendSelectionAndDelete(0, 0);
	EXPECT_STREQ("fooX", input->value().utf8().data());

	input->setValue("fooX");
	controller().setEditableSelectionOffsets(PlainTextRange(4, 4));
	EXPECT_STREQ("fooX", input->value().utf8().data());
	controller().extendSelectionAndDelete(1, 0);
	EXPECT_STREQ("foo", input->value().utf8().data());

	input->setValue(String::fromUTF8("foo\xE2\x98\x85")); // U+2605 == "black star"
	controller().setEditableSelectionOffsets(PlainTextRange(4, 4));
	EXPECT_STREQ("foo\xE2\x98\x85", input->value().utf8().data());
	controller().extendSelectionAndDelete(1, 0);
	EXPECT_STREQ("foo", input->value().utf8().data());

	input->setValue(String::fromUTF8("foo\xF0\x9F\x8F\x86")); // U+1F3C6 == "trophy"
	controller().setEditableSelectionOffsets(PlainTextRange(4, 4));
	EXPECT_STREQ("foo\xF0\x9F\x8F\x86", input->value().utf8().data());
	controller().extendSelectionAndDelete(1, 0);
	EXPECT_STREQ("foo", input->value().utf8().data());

	input->setValue(String::fromUTF8("foo\xE0\xB8\x81\xE0\xB9\x89")); // composed U+0E01 "ka kai" + U+0E49 "mai tho"
	controller().setEditableSelectionOffsets(PlainTextRange(4, 4));
	EXPECT_STREQ("foo\xE0\xB8\x81\xE0\xB9\x89", input->value().utf8().data());
	controller().extendSelectionAndDelete(1, 0);
	EXPECT_STREQ("foo", input->value().utf8().data());

	input->setValue("fooX");
	controller().setEditableSelectionOffsets(PlainTextRange(4, 4));
	EXPECT_STREQ("fooX", input->value().utf8().data());
	controller().extendSelectionAndDelete(0, 1);
	EXPECT_STREQ("fooX", input->value().utf8().data());
	}

	TEST_F(InputMethodControllerTest, SetCompositionFromExistingText)
	{
	Element* div = insertHTMLElement(
	"<div id='sample' contenteditable='true'>hello world</div>", "sample");

	Vector<CompositionUnderline> underlines;
	underlines.append(CompositionUnderline(0, 5, Color(255, 0, 0), false, 0));
	controller().setCompositionFromExistingText(underlines, 0, 5);

	Range* range = controller().compositionRange();
	EXPECT_EQ(0, range->startOffset());
	EXPECT_EQ(5, range->endOffset());

	PlainTextRange plainTextRange(PlainTextRange::create(div, range));
	EXPECT_EQ(0u, plainTextRange.start());
	EXPECT_EQ(5u, plainTextRange.end());
	}

	TEST_F(InputMethodControllerTest, SelectionOnConfirmExistingText)
	{
	insertHTMLElement(
	"<div id='sample' contenteditable='true'>hello world</div>", "sample");

	Vector<CompositionUnderline> underlines;
	underlines.append(CompositionUnderline(0, 5, Color(255, 0, 0), false, 0));
	controller().setCompositionFromExistingText(underlines, 0, 5);

	controller().confirmComposition();
	EXPECT_EQ(0, frame().selection().start().computeOffsetInContainerNode());
	EXPECT_EQ(0, frame().selection().end().computeOffsetInContainerNode());
	}

	TEST_F(InputMethodControllerTest, DeleteBySettingEmptyComposition)
	{
	HTMLInputElement* input = toHTMLInputElement(
	insertHTMLElement("<input id='sample'>", "sample"));

	input->setValue("foo ");
	controller().setEditableSelectionOffsets(PlainTextRange(4, 4));
	EXPECT_STREQ("foo ", input->value().utf8().data());
	controller().extendSelectionAndDelete(0, 0);
	EXPECT_STREQ("foo ", input->value().utf8().data());

	input->setValue("foo ");
	controller().setEditableSelectionOffsets(PlainTextRange(4, 4));
	EXPECT_STREQ("foo ", input->value().utf8().data());
	controller().extendSelectionAndDelete(1, 0);
	EXPECT_STREQ("foo", input->value().utf8().data());

	Vector<CompositionUnderline> underlines;
	underlines.append(CompositionUnderline(0, 3, Color(255, 0, 0), false, 0));
	controller().setCompositionFromExistingText(underlines, 0, 3);

	controller().setComposition(String(""), underlines, 0, 3);

	EXPECT_STREQ("", input->value().utf8().data());
	}

	TEST_F(InputMethodControllerTest, SetCompositionFromExistingTextWithCollapsedWhiteSpace)
	{
	// Creates a div with one leading new line char. The new line char is hidden
	// from the user and IME, but is visible to InputMethodController.
	Element* div = insertHTMLElement(
	"<div id='sample' contenteditable='true'>\nhello world</div>", "sample");

	Vector<CompositionUnderline> underlines;
	underlines.append(CompositionUnderline(0, 5, Color(255, 0, 0), false, 0));
	controller().setCompositionFromExistingText(underlines, 0, 5);

	Range* range = controller().compositionRange();
	EXPECT_EQ(1, range->startOffset());
	EXPECT_EQ(6, range->endOffset());

	PlainTextRange plainTextRange(PlainTextRange::create(div, range));
	EXPECT_EQ(0u, plainTextRange.start());
	EXPECT_EQ(5u, plainTextRange.end());
	}

	TEST_F(InputMethodControllerTest, SetCompositionFromExistingTextWithInvalidOffsets)
	{
	insertHTMLElement("<div id='sample' contenteditable='true'>test</div>", "sample");

	Vector<CompositionUnderline> underlines;
	underlines.append(CompositionUnderline(7, 8, Color(255, 0, 0), false, 0));
	controller().setCompositionFromExistingText(underlines, 7, 8);

	EXPECT_FALSE(controller().compositionRange());
	}

	TEST_F(InputMethodControllerTest, ConfirmPasswordComposition)
	{
	HTMLInputElement* input = toHTMLInputElement(
	insertHTMLElement("<input id='sample' type='password' size='24'>", "sample"));

	Vector<CompositionUnderline> underlines;
	underlines.append(CompositionUnderline(0, 5, Color(255, 0, 0), false, 0));
	controller().setComposition("foo", underlines, 0, 3);
	controller().confirmComposition();

	EXPECT_STREQ("foo", input->value().utf8().data());
	}

	TEST_F(InputMethodControllerTest, SetCompositionForInputWithDifferentNewCursorPositions)
	{
	HTMLInputElement* input = toHTMLInputElement(
	insertHTMLElement("<input id='sample'>", "sample"));

	input->setValue("hello");
	controller().setEditableSelectionOffsets(PlainTextRange(2, 2));
	EXPECT_STREQ("hello", input->value().utf8().data());
	EXPECT_EQ(2u, controller().getSelectionOffsets().start());
	EXPECT_EQ(2u, controller().getSelectionOffsets().end());

	Vector<CompositionUnderline> underlines;
	underlines.append(CompositionUnderline(0, 2, Color(255, 0, 0), false, 0));

	// The cursor exceeds left boundary.
	// "heABllo", where stands for cursor.
	controller().setComposition("AB", underlines, -100, -100);
	EXPECT_STREQ("heABllo", input->value().utf8().data());
	EXPECT_EQ(0u, controller().getSelectionOffsets().start());
	EXPECT_EQ(0u, controller().getSelectionOffsets().end());

	// The cursor is on left boundary.
	// "*heABllo".
	controller().setComposition("AB", underlines, -2, -2);
	EXPECT_STREQ("heABllo", input->value().utf8().data());
	EXPECT_EQ(0u, controller().getSelectionOffsets().start());
	EXPECT_EQ(0u, controller().getSelectionOffsets().end());

	// The cursor is before the composing text.
	// "he*ABllo".
	controller().setComposition("AB", underlines, 0, 0);
	EXPECT_STREQ("heABllo", input->value().utf8().data());
	EXPECT_EQ(2u, controller().getSelectionOffsets().start());
	EXPECT_EQ(2u, controller().getSelectionOffsets().end());

	// The cursor is after the composing text.
	// "heAB*llo".
	controller().setComposition("AB", underlines, 2, 2);
	EXPECT_STREQ("heABllo", input->value().utf8().data());
	EXPECT_EQ(4u, controller().getSelectionOffsets().start());
	EXPECT_EQ(4u, controller().getSelectionOffsets().end());

	// The cursor is on right boundary.
	// "heABllo*".
	controller().setComposition("AB", underlines, 5, 5);
	EXPECT_STREQ("heABllo", input->value().utf8().data());
	EXPECT_EQ(7u, controller().getSelectionOffsets().start());
	EXPECT_EQ(7u, controller().getSelectionOffsets().end());

	// The cursor exceeds right boundary.
	// "heABllo*".
	controller().setComposition("AB", underlines, 100, 100);
	EXPECT_STREQ("heABllo", input->value().utf8().data());
	EXPECT_EQ(7u, controller().getSelectionOffsets().start());
	EXPECT_EQ(7u, controller().getSelectionOffsets().end());
	}

	TEST_F(InputMethodControllerTest, SetCompositionForContentEditableWithDifferentNewCursorPositions)
	{
	// There are 7 nodes and 5+1+5+1+3+4+3 characters: "hello", '\n', "world", "\n", "012", "3456", "789".
	Element* div = insertHTMLElement(
	"<div id='sample' contenteditable='true'>"
	"hello"
	"<div id='sample2' contenteditable='true'>world"
	"<p>012<b>3456</b><i>789</i></p>"
	"</div>"
	"</div>",
	"sample");

	controller().setEditableSelectionOffsets(PlainTextRange(17, 17));
	EXPECT_STREQ("hello\nworld\n0123456789", div->innerText().utf8().data());
	EXPECT_EQ(17u, controller().getSelectionOffsets().start());
	EXPECT_EQ(17u, controller().getSelectionOffsets().end());

	Vector<CompositionUnderline> underlines;
	underlines.append(CompositionUnderline(0, 2, Color(255, 0, 0), false, 0));

	// The cursor exceeds left boundary.
	// "hello\nworld\n01234AB56789", where stands for cursor.
	controller().setComposition("AB", underlines, -100, -100);
	EXPECT_STREQ("hello\nworld\n01234AB56789", div->innerText().utf8().data());
	EXPECT_EQ(0u, controller().getSelectionOffsets().start());
	EXPECT_EQ(0u, controller().getSelectionOffsets().end());

	// The cursor is on left boundary.
	// "*hello\nworld\n01234AB56789".
	controller().setComposition("AB", underlines, -17, -17);
	EXPECT_STREQ("hello\nworld\n01234AB56789", div->innerText().utf8().data());
	EXPECT_EQ(0u, controller().getSelectionOffsets().start());
	EXPECT_EQ(0u, controller().getSelectionOffsets().end());

	// The cursor is in the 1st node.
	// "he*llo\nworld\n01234AB56789".
	controller().setComposition("AB", underlines, -15, -15);
	EXPECT_STREQ("hello\nworld\n01234AB56789", div->innerText().utf8().data());
	EXPECT_EQ(2u, controller().getSelectionOffsets().start());
	EXPECT_EQ(2u, controller().getSelectionOffsets().end());

	// The cursor is on right boundary of the 1st node.
	// "hello*\nworld\n01234AB56789".
	controller().setComposition("AB", underlines, -12, -12);
	EXPECT_STREQ("hello\nworld\n01234AB56789", div->innerText().utf8().data());
	EXPECT_EQ(5u, controller().getSelectionOffsets().start());
	EXPECT_EQ(5u, controller().getSelectionOffsets().end());

	// The cursor is on right boundary of the 2nd node.
	// "hello\n*world\n01234AB56789".
	controller().setComposition("AB", underlines, -11, -11);
	EXPECT_STREQ("hello\nworld\n01234AB56789", div->innerText().utf8().data());
	EXPECT_EQ(6u, controller().getSelectionOffsets().start());
	EXPECT_EQ(6u, controller().getSelectionOffsets().end());

	// The cursor is on right boundary of the 3rd node.
	// "hello\nworld*\n01234AB56789".
	controller().setComposition("AB", underlines, -6, -6);
	EXPECT_STREQ("hello\nworld\n01234AB56789", div->innerText().utf8().data());
	EXPECT_EQ(11u, controller().getSelectionOffsets().start());
	EXPECT_EQ(11u, controller().getSelectionOffsets().end());

	// The cursor is on right boundary of the 4th node.
	// "hello\nworld\n*01234AB56789".
	controller().setComposition("AB", underlines, -5, -5);
	EXPECT_STREQ("hello\nworld\n01234AB56789", div->innerText().utf8().data());
	EXPECT_EQ(12u, controller().getSelectionOffsets().start());
	EXPECT_EQ(12u, controller().getSelectionOffsets().end());

	// The cursor is before the composing text.
	// "hello\nworld\n01234*AB56789".
	controller().setComposition("AB", underlines, 0, 0);
	EXPECT_STREQ("hello\nworld\n01234AB56789", div->innerText().utf8().data());
	EXPECT_EQ(17u, controller().getSelectionOffsets().start());
	EXPECT_EQ(17u, controller().getSelectionOffsets().end());

	// The cursor is after the composing text.
	// "hello\nworld\n01234AB*56789".
	controller().setComposition("AB", underlines, 2, 2);
	EXPECT_STREQ("hello\nworld\n01234AB56789", div->innerText().utf8().data());
	EXPECT_EQ(19u, controller().getSelectionOffsets().start());
	EXPECT_EQ(19u, controller().getSelectionOffsets().end());

	// The cursor is on right boundary.
	// "hello\nworld\n01234AB56789*".
	controller().setComposition("AB", underlines, 7, 7);
	EXPECT_STREQ("hello\nworld\n01234AB56789", div->innerText().utf8().data());
	EXPECT_EQ(24u, controller().getSelectionOffsets().start());
	EXPECT_EQ(24u, controller().getSelectionOffsets().end());

	// The cursor exceeds right boundary.
	// "hello\nworld\n01234AB56789*".
	controller().setComposition("AB", underlines, 100, 100);
	EXPECT_STREQ("hello\nworld\n01234AB56789", div->innerText().utf8().data());
	EXPECT_EQ(24u, controller().getSelectionOffsets().start());
	EXPECT_EQ(24u, controller().getSelectionOffsets().end());
	}

	TEST_F(InputMethodControllerTest, SetCompositionWithEmptyText)
	{
	Element* div = insertHTMLElement(
	"<div id='sample' contenteditable='true'>hello</div>",
	"sample");

	controller().setEditableSelectionOffsets(PlainTextRange(2, 2));
	EXPECT_STREQ("hello", div->innerText().utf8().data());
	EXPECT_EQ(2u, controller().getSelectionOffsets().start());
	EXPECT_EQ(2u, controller().getSelectionOffsets().end());

	Vector<CompositionUnderline> underlines0;
	underlines0.append(CompositionUnderline(0, 0, Color(255, 0, 0), false, 0));
	Vector<CompositionUnderline> underlines2;
	underlines2.append(CompositionUnderline(0, 2, Color(255, 0, 0), false, 0));

	controller().setComposition("AB", underlines2, 2, 2);
	// With previous composition.
	controller().setComposition("", underlines0, 2, 2);
	EXPECT_STREQ("hello", div->innerText().utf8().data());
	EXPECT_EQ(4u, controller().getSelectionOffsets().start());
	EXPECT_EQ(4u, controller().getSelectionOffsets().end());

	// Without previous composition.
	controller().setComposition("", underlines0, -1, -1);
	EXPECT_STREQ("hello", div->innerText().utf8().data());
	EXPECT_EQ(3u, controller().getSelectionOffsets().start());
	EXPECT_EQ(3u, controller().getSelectionOffsets().end());
	}

	TEST_F(InputMethodControllerTest, CompositionInputEventIsComposing)
	{
	document().settings()->setScriptEnabled(true);
	Element* editable = insertHTMLElement("<div id='sample' contentEditable='true'></div>", "sample");
	Element* script = document().createElement("script", ASSERT_NO_EXCEPTION);
	script->setInnerHTML(
	"document.getElementById('sample').addEventListener('beforeinput', function(event) {"
	" document.title = `beforeinput.isComposing:${event.isComposing};`;"
	"});"
	"document.getElementById('sample').addEventListener('input', function(event) {"
	" document.title += `input.isComposing:${event.isComposing};`;"
	"});",
	ASSERT_NO_EXCEPTION);
	document().body()->appendChild(script, ASSERT_NO_EXCEPTION);
	document().view()->updateAllLifecyclePhases();

	// Simulate composition in the \|contentEditable\|.
	Vector<CompositionUnderline> underlines;
	underlines.append(CompositionUnderline(0, 5, Color(255, 0, 0), false, 0));
	editable->focus();

	document().setTitle(emptyString());
	controller().setComposition("foo", underlines, 0, 3);
	EXPECT_STREQ("beforeinput.isComposing:true;input.isComposing:true;", document().title().utf8().data());

	document().setTitle(emptyString());
	controller().confirmComposition();
	// Last pair of InputEvent should also be inside composition scope.
	EXPECT_STREQ("beforeinput.isComposing:true;input.isComposing:true;", document().title().utf8().data());
	}

	TEST_F(InputMethodControllerTest, CompositionInputEventData)
	{
	document().settings()->setScriptEnabled(true);
	Element* editable = insertHTMLElement("<div id='sample' contentEditable='true'></div>", "sample");
	Element* script = document().createElement("script", ASSERT_NO_EXCEPTION);
	script->setInnerHTML(
	"document.getElementById('sample').addEventListener('beforeinput', function(event) {"
	" document.title = `beforeinput.data:${event.data};`;"
	"});"
	"document.getElementById('sample').addEventListener('input', function(event) {"
	" document.title += `input.data:${event.data};`;"
	"});",
	ASSERT_NO_EXCEPTION);
	document().body()->appendChild(script, ASSERT_NO_EXCEPTION);
	document().view()->updateAllLifecyclePhases();

	// Simulate composition in the \|contentEditable\|.
	Vector<CompositionUnderline> underlines;
	underlines.append(CompositionUnderline(0, 5, Color(255, 0, 0), false, 0));
	editable->focus();

	document().setTitle(emptyString());
	controller().setComposition("n", underlines, 0, 1);
	EXPECT_STREQ("beforeinput.data:n;input.data:n;", document().title().utf8().data());

	document().setTitle(emptyString());
	controller().setComposition("ni", underlines, 0, 1);
	EXPECT_STREQ("beforeinput.data:ni;input.data:ni;", document().title().utf8().data());

	document().setTitle(emptyString());
	controller().confirmComposition();
	EXPECT_STREQ("beforeinput.data:ni;input.data:ni;", document().title().utf8().data());
	}

	} // namespace blink