CANCEL: Make "compositionstart" event cancelable

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 "config.h"
+#include "core/editing/InputMethodController.h"
+
+#include "core/dom/Text.h"
+#include "core/editing/FrameSelection.h"
+#include "core/frame/LocalFrame.h"
+#include "core/frame/Settings.h"
+#include "core/html/HTMLDocument.h"
+#include "core/html/HTMLElement.h"
+#include "core/testing/DummyPageHolder.h"
+#include <gtest/gtest.h>
+
+using namespace WebCore;
+
+namespace WebCore {
+
+class InputMethodControllerTest : public ::testing::Test {
+protected:
+    HTMLDocument& document() const { return *m_document; }
+    LocalFrame& frame() const { return m_dummyPageHolder->frame(); }
+
+private:
+    virtual void SetUp() OVERRIDE;
+
+    OwnPtr<DummyPageHolder> m_dummyPageHolder;
+    HTMLDocument* m_document;
+};
+
+void InputMethodControllerTest::SetUp()
+{
+    m_dummyPageHolder = DummyPageHolder::create(IntSize(800, 600));
+    m_document = toHTMLDocument(&m_dummyPageHolder->document());
+    ASSERT(m_document);
+}
+
+} // namespace WebCore
+
+namespace {
+
+using namespace WebCore;
+
+TEST_F(InputMethodControllerTest, setComposition)
+{
+    document().write("<div contenteditable='true' id='target'>foo</div>");
+    RefPtrWillBeRawPtr<Element> input = document().getElementById("target");
+    frame().selection().moveTo(Position(toText(input->firstChild()), 0), DOWNSTREAM);
+    frame().inputMethodController().setComposition("bar", Vector<CompositionUnderline>(), 0, 0);
+    EXPECT_STREQ("barfoo", input->textContent().utf8().data());
+}
+
+TEST_F(InputMethodControllerTest, setCompositionCancelCompositionStart)
+{
+    frame().settings()->setScriptEnabled(true);
+    document().write("<div contenteditable='true' id='target'>foo</div>"
+        "<script>"
+        "document.getElementById('target').addEventListener('compositionstart', function(event) {"
+        "   event.preventDefault();"
+        "});"
+        "</script>");
+    document().updateLayout();
+    RefPtrWillBeRawPtr<Element> input = document().getElementById("target");
+    document().setFocusedElement(input);
+    frame().selection().moveTo(Position(toText(input->firstChild()), 0), DOWNSTREAM);
+    frame().inputMethodController().setComposition("bar", Vector<CompositionUnderline>(), 0, 0);
+    EXPECT_STREQ("foo", input->textContent().utf8().data());
+}
+
+} // namespace WebCore