Make Blink support multiline text insertion

third_party/WebKit/Source/core/editing/InputMethodControllerTest.cpp

 // 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/Editor.h"
@@ skipping 291 matching lines @@
       "sample");
 
   Vector<CompositionUnderline> underlines;
   underlines.push_back(CompositionUnderline(3, 12, Color(255, 0, 0), false, 0));
   controller().setCompositionFromExistingText(underlines, 3, 12);
 
   controller().commitText(String("123789"), underlines, 0);
   EXPECT_STREQ("abc1<b>2</b>37<b>8</b>9", div->innerHTML().utf8().data());
 }
 
+TEST_F(InputMethodControllerTest, InsertTextWithNewLine) {
+  Element* div =
+      insertHTMLElement("<div id='sample' contenteditable></div>", "sample");
+  Vector<CompositionUnderline> underlines;
+  underlines.push_back(CompositionUnderline(0, 11, Color(255, 0, 0), false, 0));
+
+  controller().commitText(String("hello\nworld"), underlines, 0);
+  EXPECT_STREQ("hello<div>world</div>", div->innerHTML().utf8().data());
+}
+
+TEST_F(InputMethodControllerTest, InsertTextWithNewLineIncrementally) {
+  Element* div =
+      insertHTMLElement("<div id='sample' contenteditable></div>", "sample");
+
+  Vector<CompositionUnderline> underlines;
+  underlines.push_back(CompositionUnderline(0, 11, Color(255, 0, 0), false, 0));
+  controller().setComposition("foo", underlines, 0, 2);
+  EXPECT_STREQ("foo", div->innerHTML().utf8().data());
+
+  controller().commitText(String("hello\nworld"), underlines, 0);
+  EXPECT_STREQ("hello<div>world</div>", div->innerHTML().utf8().data());
+}
+
 TEST_F(InputMethodControllerTest, SelectionOnConfirmExistingText) {
   insertHTMLElement("<div id='sample' contenteditable>hello world</div>",
                     "sample");
 
   Vector<CompositionUnderline> underlines;
   underlines.push_back(CompositionUnderline(0, 5, Color(255, 0, 0), false, 0));
   controller().setCompositionFromExistingText(underlines, 0, 5);
 
   controller().finishComposingText(InputMethodController::KeepSelection);
   EXPECT_EQ(0, frame().selection().start().computeOffsetInContainerNode());
@@ skipping 847 matching lines @@
 
   controller().commitText(String("string"), underlines, 0);
 
   ASSERT_EQ(1u, document().markers().markers().size());
 
   EXPECT_EQ(9u, document().markers().markers()[0]->startOffset());
   EXPECT_EQ(15u, document().markers().markers()[0]->endOffset());
 }
 
 }  // namespace blink