Support InputMethodManager#updateCursorAnchorInfo for Android 5.0

content/public/android/javatests/src/org/chromium/content/browser/input/CursorAnchorInfoControllerTest.java

Index: content/public/android/javatests/src/org/chromium/content/browser/input/CursorAnchorInfoControllerTest.java
diff --git a/content/public/android/javatests/src/org/chromium/content/browser/input/CursorAnchorInfoControllerTest.java b/content/public/android/javatests/src/org/chromium/content/browser/input/CursorAnchorInfoControllerTest.java
new file mode 100644
index 0000000000000000000000000000000000000000..768b6bbf91d2aded5ac6101e705e16983d39a7b4
--- /dev/null
+++ b/content/public/android/javatests/src/org/chromium/content/browser/input/CursorAnchorInfoControllerTest.java
@@ -0,0 +1,589 @@
+// 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.
+
+package org.chromium.content.browser.input;
+
+import android.annotation.TargetApi;
+import android.graphics.Matrix;
+import android.graphics.RectF;
+import android.os.Build;
+import android.test.InstrumentationTestCase;
+import android.test.suitebuilder.annotation.SmallTest;
+import android.text.TextUtils;
+import android.view.View;
+import android.view.inputmethod.CursorAnchorInfo;
+import android.view.inputmethod.InputConnection;
+
+import org.chromium.base.test.util.Feature;
+import org.chromium.base.test.util.MinAndroidSdkLevel;
+import org.chromium.content.browser.RenderCoordinates;
+import org.chromium.content.browser.test.util.TestInputMethodManagerWrapper;
+
+/**
+ * Test for {@link CursorAnchorInfoController}.
+ */
+@MinAndroidSdkLevel(Build.VERSION_CODES.LOLLIPOP)
+@TargetApi(Build.VERSION_CODES.LOLLIPOP)
+public class CursorAnchorInfoControllerTest extends InstrumentationTestCase {
+    private static RenderCoordinates createRenderCoordinates(float deviceScaleFactor,
+            float contentOffsetYPix) {
+        RenderCoordinates renderCoordinates = new RenderCoordinates();
+        renderCoordinates.setFrameInfoForTest(deviceScaleFactor, contentOffsetYPix);
+        return renderCoordinates;
+    }
+
+    private static final class TestViewDelegate implements CursorAnchorInfoController.ViewDelegate {
+        public int locationX;
+        public int locationY;
+        @Override
+        public void getLocationOnScreen(View view, int[] location) {
+            location[0] = locationX;
+            location[1] = locationY;
+        }
+    }
+
+    private static final class TestComposingTextDelegate
+            implements CursorAnchorInfoController.ComposingTextDelegate {
+        private String mText;
+        private int mSelectionStart = -1;
+        private int mSelectionEnd = -1;
+        private int mComposingTextStart = -1;
+        private int mComposingTextEnd = -1;
+
+        @Override
+        public CharSequence getText() {
+            return mText;
+        }
+        @Override
+        public int getSelectionStart() {
+            return mSelectionStart;
+        }
+        @Override
+        public int getSelectionEnd() {
+            return mSelectionEnd;
+        }
+        @Override
+        public int getComposingTextStart() {
+            return mComposingTextStart;
+        }
+        @Override
+        public int getComposingTextEnd() {
+            return mComposingTextEnd;
+        }
+
+        public void updateTextAndSelection(CursorAnchorInfoController controller,
+                String text, int compositionStart, int compositionEnd, int selectionStart,
+                int selectionEnd) {
+            mText = text;
+            mSelectionStart = selectionStart;
+            mSelectionEnd = selectionEnd;
+            mComposingTextStart = compositionStart;
+            mComposingTextEnd = compositionEnd;
+            controller.invalidateLastCursorAnchorInfo();
+        }
+
+        public void clearTextAndSelection(CursorAnchorInfoController controller) {
+            updateTextAndSelection(controller, null, -1, -1, -1, -1);
+        }
+    }
+
+    private void assertScaleAndTranslate(float expectedScale, float expectedTranslateX,
+            float expectedTranslateY, CursorAnchorInfo actual) {
+        Matrix expectedMatrix = new Matrix();
+        expectedMatrix.setScale(expectedScale, expectedScale);
+        expectedMatrix.postTranslate(expectedTranslateX, expectedTranslateY);
+        assertEquals(expectedMatrix, actual.getMatrix());
+    }
+
+    private void assertHasInsertionMarker(int expectedFlags, float expectedHorizontal,
+            float expectedTop, float expectedBaseline, float expectedBottom,
+            CursorAnchorInfo actual) {
+        assertEquals(expectedFlags, actual.getInsertionMarkerFlags());
+        assertEquals(expectedHorizontal, actual.getInsertionMarkerHorizontal());
+        assertEquals(expectedTop, actual.getInsertionMarkerTop());
+        assertEquals(expectedBaseline, actual.getInsertionMarkerBaseline());
+        assertEquals(expectedBottom, actual.getInsertionMarkerBottom());
+    }
+
+    private void assertHasNoInsertionMarker(CursorAnchorInfo actual) {
+        assertEquals(0, actual.getInsertionMarkerFlags());
+        assertTrue(Float.isNaN(actual.getInsertionMarkerHorizontal()));
+        assertTrue(Float.isNaN(actual.getInsertionMarkerTop()));
+        assertTrue(Float.isNaN(actual.getInsertionMarkerBaseline()));
+        assertTrue(Float.isNaN(actual.getInsertionMarkerBottom()));
+    }
+
+    private void assertComposingText(CharSequence expectedComposingText,
+            int expectedComposingTextStart, CursorAnchorInfo actual) {
+        assertTrue(TextUtils.equals(expectedComposingText, actual.getComposingText()));
+        assertEquals(expectedComposingTextStart, actual.getComposingTextStart());
+    }
+
+    private void assertSelection(int expecteSelectionStart, int expecteSelectionEnd,
+            CursorAnchorInfo actual) {
+        assertEquals(expecteSelectionStart, actual.getSelectionStart());
+        assertEquals(expecteSelectionEnd, actual.getSelectionEnd());
+    }
+
+    @SmallTest
+    @Feature({"Input-Text-IME"})
+    public void testFocusedNodeChanged() {
+        TestInputMethodManagerWrapper immw = new TestInputMethodManagerWrapper(null);
+        TestViewDelegate viewDelegate = new TestViewDelegate();
+        TestComposingTextDelegate composingTextDelegate = new TestComposingTextDelegate();
+        CursorAnchorInfoController controller = CursorAnchorInfoController.createForTest(
+                immw, composingTextDelegate, viewDelegate);
+        View view = null;
+
+        viewDelegate.locationX = 0;
+        viewDelegate.locationY = 0;
+
+        assertFalse(
+                "IC#onRequestCursorUpdates() must be rejected if the focused node is not editable.",
+                controller.onRequestCursorUpdates(InputConnection.CURSOR_UPDATE_MONITOR, view));
+
+        // Make sure that the focused node is considered to be non-editable by default.
+        controller.setCompositionCharacterBounds(new float[] {0.0f, 1.0f, 2.0f, 3.0f});
+        composingTextDelegate.updateTextAndSelection(controller, "0", 0, 1, 0, 1);
+        controller.onUpdateFrameInfo(createRenderCoordinates(1.0f, 0.0f),
+                true, true, 2.0f, 0.0f, 3.0f, view);
+        assertEquals(0, immw.getUpdateCursorAnchorInfoCounter());
+
+        controller.focusedNodeChanged(false);
+        composingTextDelegate.clearTextAndSelection(controller);
+
+        // Make sure that the controller does not crash even if it is called while the focused node
+        // is not editable.
+        controller.setCompositionCharacterBounds(new float[] {30.0f, 1.0f, 32.0f, 3.0f});
+        composingTextDelegate.updateTextAndSelection(controller, "1", 0, 1, 0, 1);
+        controller.onUpdateFrameInfo(createRenderCoordinates(1.0f, 100.0f),
+                true, true, 2.0f, 0.0f, 3.0f, view);
+        assertEquals(0, immw.getUpdateCursorAnchorInfoCounter());
+    }
+
+    @SmallTest
+    @Feature({"Input-Text-IME"})
+    public void testImmediateMode() {
+        TestInputMethodManagerWrapper immw = new TestInputMethodManagerWrapper(null);
+        TestViewDelegate viewDelegate = new TestViewDelegate();
+        TestComposingTextDelegate composingTextDelegate = new TestComposingTextDelegate();
+        CursorAnchorInfoController controller = CursorAnchorInfoController.createForTest(
+                immw, composingTextDelegate, viewDelegate);
+        View view = null;
+        viewDelegate.locationX = 0;
+        viewDelegate.locationY = 0;
+
+        controller.focusedNodeChanged(true);
+        composingTextDelegate.clearTextAndSelection(controller);
+
+        // Make sure that #updateCursorAnchorInfo() is not be called until the matrix info becomes
+        // available with #onUpdateFrameInfo().
+        assertTrue(controller.onRequestCursorUpdates(InputConnection.CURSOR_UPDATE_IMMEDIATE,
+                view));
+        controller.setCompositionCharacterBounds(new float[] {0.0f, 1.0f, 2.0f, 3.0f});
+        composingTextDelegate.updateTextAndSelection(controller, "0", 0, 1, 0, 1);
+        assertEquals(0, immw.getUpdateCursorAnchorInfoCounter());
+        controller.onUpdateFrameInfo(createRenderCoordinates(1.0f, 0.0f),
+                true, true, 2.0f, 0.0f, 3.0f, view);
+        assertEquals(1, immw.getUpdateCursorAnchorInfoCounter());
+        assertScaleAndTranslate(1.0f, 0.0f, 0.0f, immw.getLastCursorAnchorInfo());
+        assertHasInsertionMarker(CursorAnchorInfo.FLAG_HAS_VISIBLE_REGION, 2.0f, 0.0f, 3.0f,
+                3.0f, immw.getLastCursorAnchorInfo());
+        assertEquals(new RectF(0.0f, 1.0f, 2.0f, 3.0f),
+                immw.getLastCursorAnchorInfo().getCharacterBounds(0));
+        assertEquals(CursorAnchorInfo.FLAG_HAS_VISIBLE_REGION,
+                immw.getLastCursorAnchorInfo().getCharacterBoundsFlags(0));
+        assertComposingText("0", 0, immw.getLastCursorAnchorInfo());
+        assertSelection(0, 1, immw.getLastCursorAnchorInfo());
+        immw.clearLastCursorAnchorInfo();
+
+        // Make sure that 2nd call of #onUpdateFrameInfo() is ignored.
+        controller.onUpdateFrameInfo(createRenderCoordinates(2.0f, 0.0f),
+                true, true, 2.0f, 0.0f, 3.0f, view);
+        assertEquals(1, immw.getUpdateCursorAnchorInfoCounter());
+
+        // Make sure that #onUpdateFrameInfo() is immediately called because the matrix info is
+        // already available.
+        assertTrue(controller.onRequestCursorUpdates(InputConnection.CURSOR_UPDATE_IMMEDIATE,
+                view));
+        assertEquals(2, immw.getUpdateCursorAnchorInfoCounter());
+        assertScaleAndTranslate(2.0f, 0.0f, 0.0f, immw.getLastCursorAnchorInfo());
+        assertHasInsertionMarker(CursorAnchorInfo.FLAG_HAS_VISIBLE_REGION, 2.0f, 0.0f, 3.0f,
+                3.0f, immw.getLastCursorAnchorInfo());
+        assertEquals(new RectF(0.0f, 1.0f, 2.0f, 3.0f),
+                immw.getLastCursorAnchorInfo().getCharacterBounds(0));
+        assertEquals(CursorAnchorInfo.FLAG_HAS_VISIBLE_REGION,
+                immw.getLastCursorAnchorInfo().getCharacterBoundsFlags(0));
+        assertComposingText("0", 0, immw.getLastCursorAnchorInfo());
+        assertSelection(0, 1, immw.getLastCursorAnchorInfo());
+        immw.clearLastCursorAnchorInfo();
+
+        // Make sure that CURSOR_UPDATE_IMMEDIATE and CURSOR_UPDATE_MONITOR can be specified at
+        // the same time.
+        assertTrue(controller.onRequestCursorUpdates(
+                InputConnection.CURSOR_UPDATE_IMMEDIATE | InputConnection.CURSOR_UPDATE_MONITOR,
+                view));
+        assertEquals(3, immw.getUpdateCursorAnchorInfoCounter());
+        assertScaleAndTranslate(2.0f, 0.0f, 0.0f, immw.getLastCursorAnchorInfo());
+        immw.clearLastCursorAnchorInfo();
+        controller.onUpdateFrameInfo(createRenderCoordinates(1.0f, 0.0f),
+                true, true, 2.0f, 0.0f, 3.0f, view);
+        assertEquals(4, immw.getUpdateCursorAnchorInfoCounter());
+        assertScaleAndTranslate(1.0f, 0.0f, 0.0f, immw.getLastCursorAnchorInfo());
+        assertHasInsertionMarker(CursorAnchorInfo.FLAG_HAS_VISIBLE_REGION, 2.0f, 0.0f, 3.0f,
+                3.0f, immw.getLastCursorAnchorInfo());
+        assertEquals(new RectF(0.0f, 1.0f, 2.0f, 3.0f),
+                immw.getLastCursorAnchorInfo().getCharacterBounds(0));
+        assertEquals(CursorAnchorInfo.FLAG_HAS_VISIBLE_REGION,
+                immw.getLastCursorAnchorInfo().getCharacterBoundsFlags(0));
+        assertComposingText("0", 0, immw.getLastCursorAnchorInfo());
+        assertSelection(0, 1, immw.getLastCursorAnchorInfo());
+        immw.clearLastCursorAnchorInfo();
+
+        // Make sure that CURSOR_UPDATE_IMMEDIATE is cleared if the focused node becomes
+        // non-editable.
+        controller.focusedNodeChanged(false);
+        controller.focusedNodeChanged(true);
+        composingTextDelegate.clearTextAndSelection(controller);
+        assertTrue(controller.onRequestCursorUpdates(InputConnection.CURSOR_UPDATE_IMMEDIATE,
+                view));
+        controller.focusedNodeChanged(false);
+        composingTextDelegate.clearTextAndSelection(controller);
+        controller.onUpdateFrameInfo(createRenderCoordinates(1.0f, 100.0f),
+                true, true, 2.0f, 0.0f, 3.0f, view);
+        assertEquals(4, immw.getUpdateCursorAnchorInfoCounter());
+
+        // Make sure that CURSOR_UPDATE_IMMEDIATE can be enabled again.
+        controller.focusedNodeChanged(true);
+        composingTextDelegate.clearTextAndSelection(controller);
+        assertTrue(controller.onRequestCursorUpdates(InputConnection.CURSOR_UPDATE_IMMEDIATE,
+                view));
+        controller.onUpdateFrameInfo(createRenderCoordinates(1.0f, 0.0f),
+                true, true, 2.0f, 0.0f, 3.0f, view);
+        assertEquals(5, immw.getUpdateCursorAnchorInfoCounter());
+        assertScaleAndTranslate(1.0f, 0.0f, 0.0f, immw.getLastCursorAnchorInfo());
+        assertHasInsertionMarker(CursorAnchorInfo.FLAG_HAS_VISIBLE_REGION, 2.0f, 0.0f, 3.0f,
+                3.0f, immw.getLastCursorAnchorInfo());
+        assertEquals(null, immw.getLastCursorAnchorInfo().getCharacterBounds(0));
+        assertEquals(0, immw.getLastCursorAnchorInfo().getCharacterBoundsFlags(0));
+        assertComposingText(null, -1, immw.getLastCursorAnchorInfo());
+        assertSelection(-1, -1, immw.getLastCursorAnchorInfo());
+        immw.clearLastCursorAnchorInfo();
+    }
+
+    @SmallTest
+    @Feature({"Input-Text-IME"})
+    public void testMonitorMode() {
+        TestInputMethodManagerWrapper immw = new TestInputMethodManagerWrapper(null);
+        TestViewDelegate viewDelegate = new TestViewDelegate();
+        TestComposingTextDelegate composingTextDelegate = new TestComposingTextDelegate();
+        CursorAnchorInfoController controller = CursorAnchorInfoController.createForTest(
+                immw, composingTextDelegate, viewDelegate);
+        View view = null;
+        viewDelegate.locationX = 0;
+        viewDelegate.locationY = 0;
+
+        controller.focusedNodeChanged(true);
+        composingTextDelegate.clearTextAndSelection(controller);
+
+        // Make sure that #updateCursorAnchorInfo() is not be called until the matrix info becomes
+        // available with #onUpdateFrameInfo().
+        assertTrue(controller.onRequestCursorUpdates(InputConnection.CURSOR_UPDATE_MONITOR, view));
+        controller.setCompositionCharacterBounds(new float[] {0.0f, 1.0f, 2.0f, 3.0f});
+        composingTextDelegate.updateTextAndSelection(controller, "0", 0, 1, 0, 1);
+        assertEquals(0, immw.getUpdateCursorAnchorInfoCounter());
+        controller.onUpdateFrameInfo(createRenderCoordinates(1.0f, 0.0f),
+                true, true, 2.0f, 0.0f, 3.0f, view);
+        assertEquals(1, immw.getUpdateCursorAnchorInfoCounter());
+        assertScaleAndTranslate(1.0f, 0.0f, 0.0f, immw.getLastCursorAnchorInfo());
+        assertHasInsertionMarker(CursorAnchorInfo.FLAG_HAS_VISIBLE_REGION, 2.0f, 0.0f, 3.0f,
+                3.0f, immw.getLastCursorAnchorInfo());
+        assertEquals(new RectF(0.0f, 1.0f, 2.0f, 3.0f),
+                immw.getLastCursorAnchorInfo().getCharacterBounds(0));
+        assertEquals(CursorAnchorInfo.FLAG_HAS_VISIBLE_REGION,
+                immw.getLastCursorAnchorInfo().getCharacterBoundsFlags(0));
+        assertComposingText("0", 0, immw.getLastCursorAnchorInfo());
+        assertSelection(0, 1, immw.getLastCursorAnchorInfo());
+        immw.clearLastCursorAnchorInfo();
+
+        // Make sure that #updateCursorAnchorInfo() is not be called if any coordinate parameter is
+        // changed for better performance.
+        controller.setCompositionCharacterBounds(new float[] {0.0f, 1.0f, 2.0f, 3.0f});
+        controller.onUpdateFrameInfo(createRenderCoordinates(1.0f, 0.0f),
+                true, true, 2.0f, 0.0f, 3.0f, view);
+        assertEquals(1, immw.getUpdateCursorAnchorInfoCounter());
+
+        // Make sure that #updateCursorAnchorInfo() is called if #setCompositionCharacterBounds()
+        // is called with a different parameter.
+        controller.setCompositionCharacterBounds(new float[] {30.0f, 1.0f, 32.0f, 3.0f});
+        assertEquals(1, immw.getUpdateCursorAnchorInfoCounter());
+        controller.onUpdateFrameInfo(createRenderCoordinates(1.0f, 0.0f),
+                true, true, 2.0f, 0.0f, 3.0f, view);
+        assertEquals(2, immw.getUpdateCursorAnchorInfoCounter());
+        assertScaleAndTranslate(1.0f, 0.0f, 0.0f, immw.getLastCursorAnchorInfo());
+        assertHasInsertionMarker(CursorAnchorInfo.FLAG_HAS_VISIBLE_REGION, 2.0f, 0.0f, 3.0f,
+                3.0f, immw.getLastCursorAnchorInfo());
+        assertEquals(new RectF(30.0f, 1.0f, 32.0f, 3.0f),
+                immw.getLastCursorAnchorInfo().getCharacterBounds(0));
+        assertEquals(CursorAnchorInfo.FLAG_HAS_VISIBLE_REGION,
+                immw.getLastCursorAnchorInfo().getCharacterBoundsFlags(0));
+        assertComposingText("0", 0, immw.getLastCursorAnchorInfo());
+        assertSelection(0, 1, immw.getLastCursorAnchorInfo());
+        immw.clearLastCursorAnchorInfo();
+
+        // Make sure that #updateCursorAnchorInfo() is called if #updateTextAndSelection()
+        // is called with a different parameter.
+        composingTextDelegate.updateTextAndSelection(controller, "1", 0, 1, 0, 1);
+        assertEquals(2, immw.getUpdateCursorAnchorInfoCounter());
+        controller.onUpdateFrameInfo(createRenderCoordinates(1.0f, 0.0f),
+                true, true, 2.0f, 0.0f, 3.0f, view);
+        assertEquals(3, immw.getUpdateCursorAnchorInfoCounter());
+        assertScaleAndTranslate(1.0f, 0.0f, 0.0f, immw.getLastCursorAnchorInfo());
+        assertHasInsertionMarker(CursorAnchorInfo.FLAG_HAS_VISIBLE_REGION, 2.0f, 0.0f, 3.0f,
+                3.0f, immw.getLastCursorAnchorInfo());
+        assertEquals(new RectF(30.0f, 1.0f, 32.0f, 3.0f),
+                immw.getLastCursorAnchorInfo().getCharacterBounds(0));
+        assertEquals(CursorAnchorInfo.FLAG_HAS_VISIBLE_REGION,
+                immw.getLastCursorAnchorInfo().getCharacterBoundsFlags(0));
+        assertComposingText("1", 0, immw.getLastCursorAnchorInfo());
+        assertSelection(0, 1, immw.getLastCursorAnchorInfo());
+        immw.clearLastCursorAnchorInfo();
+
+        // Make sure that #updateCursorAnchorInfo() is called if #onUpdateFrameInfo()
+        // is called with a different parameter.
+        controller.onUpdateFrameInfo(createRenderCoordinates(2.0f, 0.0f),
+                true, true, 2.0f, 0.0f, 3.0f, view);
+        assertEquals(4, immw.getUpdateCursorAnchorInfoCounter());
+        assertScaleAndTranslate(2.0f, 0.0f, 0.0f, immw.getLastCursorAnchorInfo());
+        assertHasInsertionMarker(CursorAnchorInfo.FLAG_HAS_VISIBLE_REGION, 2.0f, 0.0f, 3.0f,
+                3.0f, immw.getLastCursorAnchorInfo());
+        assertEquals(new RectF(30.0f, 1.0f, 32.0f, 3.0f),
+                immw.getLastCursorAnchorInfo().getCharacterBounds(0));
+        assertEquals(CursorAnchorInfo.FLAG_HAS_VISIBLE_REGION,
+                immw.getLastCursorAnchorInfo().getCharacterBoundsFlags(0));
+        assertComposingText("1", 0, immw.getLastCursorAnchorInfo());
+        assertSelection(0, 1, immw.getLastCursorAnchorInfo());
+        immw.clearLastCursorAnchorInfo();
+
+        // Make sure that #updateCursorAnchorInfo() is called when the view origin is changed.
+        viewDelegate.locationX = 7;
+        viewDelegate.locationY = 9;
+        controller.onUpdateFrameInfo(createRenderCoordinates(2.0f, 0.0f),
+                true, true, 2.0f, 0.0f, 3.0f, view);
+        assertEquals(5, immw.getUpdateCursorAnchorInfoCounter());
+        assertScaleAndTranslate(2.0f, 7.0f, 9.0f, immw.getLastCursorAnchorInfo());
+        assertHasInsertionMarker(CursorAnchorInfo.FLAG_HAS_VISIBLE_REGION, 2.0f, 0.0f, 3.0f,
+                3.0f, immw.getLastCursorAnchorInfo());
+        assertEquals(new RectF(30.0f, 1.0f, 32.0f, 3.0f),
+                immw.getLastCursorAnchorInfo().getCharacterBounds(0));
+        assertEquals(CursorAnchorInfo.FLAG_HAS_VISIBLE_REGION,
+                immw.getLastCursorAnchorInfo().getCharacterBoundsFlags(0));
+        assertComposingText("1", 0, immw.getLastCursorAnchorInfo());
+        assertSelection(0, 1, immw.getLastCursorAnchorInfo());
+        immw.clearLastCursorAnchorInfo();
+
+        // Make sure that CURSOR_UPDATE_IMMEDIATE is cleared if the focused node becomes
+        // non-editable.
+        controller.focusedNodeChanged(false);
+        controller.focusedNodeChanged(true);
+        composingTextDelegate.clearTextAndSelection(controller);
+        assertTrue(controller.onRequestCursorUpdates(InputConnection.CURSOR_UPDATE_MONITOR, view));
+        controller.focusedNodeChanged(false);
+        composingTextDelegate.clearTextAndSelection(controller);
+        controller.setCompositionCharacterBounds(new float[] {0.0f, 1.0f, 2.0f, 3.0f});
+        composingTextDelegate.updateTextAndSelection(controller, "0", 0, 1, 0, 1);
+        controller.onUpdateFrameInfo(createRenderCoordinates(1.0f, 0.0f),
+                true, true, 2.0f, 0.0f, 3.0f, view);
+        assertEquals(5, immw.getUpdateCursorAnchorInfoCounter());
+
+        // Make sure that CURSOR_UPDATE_MONITOR can be enabled again.
+        controller.focusedNodeChanged(true);
+        composingTextDelegate.clearTextAndSelection(controller);
+        assertTrue(controller.onRequestCursorUpdates(InputConnection.CURSOR_UPDATE_MONITOR, view));
+        controller.setCompositionCharacterBounds(new float[] {0.0f, 1.0f, 2.0f, 3.0f});
+        composingTextDelegate.updateTextAndSelection(controller, "0", 0, 1, 0, 1);
+        assertEquals(5, immw.getUpdateCursorAnchorInfoCounter());
+        viewDelegate.locationX = 0;
+        viewDelegate.locationY = 0;
+        controller.onUpdateFrameInfo(createRenderCoordinates(1.0f, 0.0f),
+                true, true, 2.0f, 0.0f, 3.0f, view);
+        assertEquals(6, immw.getUpdateCursorAnchorInfoCounter());
+        assertScaleAndTranslate(1.0f, 0.0f, 0.0f, immw.getLastCursorAnchorInfo());
+        assertHasInsertionMarker(CursorAnchorInfo.FLAG_HAS_VISIBLE_REGION, 2.0f, 0.0f, 3.0f,
+                3.0f, immw.getLastCursorAnchorInfo());
+        assertEquals(new RectF(0.0f, 1.0f, 2.0f, 3.0f),
+                immw.getLastCursorAnchorInfo().getCharacterBounds(0));
+        assertEquals(CursorAnchorInfo.FLAG_HAS_VISIBLE_REGION,
+                immw.getLastCursorAnchorInfo().getCharacterBoundsFlags(0));
+        assertComposingText("0", 0, immw.getLastCursorAnchorInfo());
+        assertSelection(0, 1, immw.getLastCursorAnchorInfo());
+        immw.clearLastCursorAnchorInfo();
+    }
+
+    @SmallTest
+    @Feature({"Input-Text-IME"})
+    public void testSetCompositionCharacterBounds() {
+        TestInputMethodManagerWrapper immw = new TestInputMethodManagerWrapper(null);
+        TestViewDelegate viewDelegate = new TestViewDelegate();
+        TestComposingTextDelegate composingTextDelegate = new TestComposingTextDelegate();
+        CursorAnchorInfoController controller = CursorAnchorInfoController.createForTest(
+                immw, composingTextDelegate, viewDelegate);
+        View view = null;
+
+        viewDelegate.locationX = 0;
+        viewDelegate.locationY = 0;
+
+        controller.focusedNodeChanged(true);
+        composingTextDelegate.clearTextAndSelection(controller);
+        assertTrue(controller.onRequestCursorUpdates(InputConnection.CURSOR_UPDATE_MONITOR, view));
+
+        composingTextDelegate.updateTextAndSelection(controller, "01234", 1, 3, 1, 1);
+        controller.setCompositionCharacterBounds(new float[] {0.0f, 1.0f, 2.0f, 3.0f,
+                4.0f, 1.1f, 6.0f, 2.9f});
+        controller.onUpdateFrameInfo(createRenderCoordinates(1.0f, 0.0f),
+                false, false, Float.NaN, Float.NaN, Float.NaN, view);
+        assertEquals(1, immw.getUpdateCursorAnchorInfoCounter());
+        assertEquals(null, immw.getLastCursorAnchorInfo().getCharacterBounds(0));
+        assertEquals(0, immw.getLastCursorAnchorInfo().getCharacterBoundsFlags(0));
+        assertEquals(new RectF(0.0f, 1.0f, 2.0f, 3.0f),
+                immw.getLastCursorAnchorInfo().getCharacterBounds(1));
+        assertEquals(CursorAnchorInfo.FLAG_HAS_VISIBLE_REGION,
+                immw.getLastCursorAnchorInfo().getCharacterBoundsFlags(1));
+        assertEquals(new RectF(4.0f, 1.1f, 6.0f, 2.9f),
+                immw.getLastCursorAnchorInfo().getCharacterBounds(2));
+        assertEquals(CursorAnchorInfo.FLAG_HAS_VISIBLE_REGION,
+                immw.getLastCursorAnchorInfo().getCharacterBoundsFlags(2));
+        assertEquals(null, immw.getLastCursorAnchorInfo().getCharacterBounds(3));
+        assertEquals(0, immw.getLastCursorAnchorInfo().getCharacterBoundsFlags(3));
+        assertComposingText("12", 1, immw.getLastCursorAnchorInfo());
+        assertSelection(1, 1, immw.getLastCursorAnchorInfo());
+    }
+
+    @SmallTest
+    @Feature({"Input-Text-IME"})
+    public void testUpdateTextAndSelection() {
+        TestInputMethodManagerWrapper immw = new TestInputMethodManagerWrapper(null);
+        TestViewDelegate viewDelegate = new TestViewDelegate();
+        TestComposingTextDelegate composingTextDelegate = new TestComposingTextDelegate();
+        CursorAnchorInfoController controller = CursorAnchorInfoController.createForTest(
+                immw, composingTextDelegate, viewDelegate);
+        View view = null;
+
+        viewDelegate.locationX = 0;
+        viewDelegate.locationY = 0;
+
+        controller.focusedNodeChanged(true);
+        composingTextDelegate.clearTextAndSelection(controller);
+        assertTrue(controller.onRequestCursorUpdates(InputConnection.CURSOR_UPDATE_MONITOR, view));
+
+        composingTextDelegate.updateTextAndSelection(controller, "01234", 3, 3, 1, 1);
+        controller.onUpdateFrameInfo(createRenderCoordinates(1.0f, 0.0f),
+                false, false, Float.NaN, Float.NaN, Float.NaN, view);
+        assertEquals(1, immw.getUpdateCursorAnchorInfoCounter());
+        assertEquals(null, immw.getLastCursorAnchorInfo().getCharacterBounds(0));
+        assertEquals(0, immw.getLastCursorAnchorInfo().getCharacterBoundsFlags(0));
+        assertEquals(null, immw.getLastCursorAnchorInfo().getCharacterBounds(1));
+        assertEquals(0, immw.getLastCursorAnchorInfo().getCharacterBoundsFlags(1));
+        assertEquals(null, immw.getLastCursorAnchorInfo().getCharacterBounds(2));
+        assertEquals(0, immw.getLastCursorAnchorInfo().getCharacterBoundsFlags(2));
+        assertEquals(null, immw.getLastCursorAnchorInfo().getCharacterBounds(3));
+        assertEquals(0, immw.getLastCursorAnchorInfo().getCharacterBoundsFlags(3));
+        assertEquals(null, immw.getLastCursorAnchorInfo().getCharacterBounds(4));
+        assertEquals(0, immw.getLastCursorAnchorInfo().getCharacterBoundsFlags(4));
+        assertComposingText("", 3, immw.getLastCursorAnchorInfo());
+        assertSelection(1, 1, immw.getLastCursorAnchorInfo());
+    }
+
+    @SmallTest
+    @Feature({"Input-Text-IME"})
+    public void testInsertionMarker() {
+        TestInputMethodManagerWrapper immw = new TestInputMethodManagerWrapper(null);
+        TestViewDelegate viewDelegate = new TestViewDelegate();
+        TestComposingTextDelegate composingTextDelegate = new TestComposingTextDelegate();
+        CursorAnchorInfoController controller = CursorAnchorInfoController.createForTest(
+                immw, composingTextDelegate, viewDelegate);
+        View view = null;
+
+        controller.focusedNodeChanged(true);
+        composingTextDelegate.clearTextAndSelection(controller);
+        assertTrue(controller.onRequestCursorUpdates(InputConnection.CURSOR_UPDATE_MONITOR, view));
+
+        // Test no insertion marker.
+        controller.onUpdateFrameInfo(createRenderCoordinates(1.0f, 0.0f),
+                false, false, Float.NaN, Float.NaN, Float.NaN, view);
+        assertEquals(1, immw.getUpdateCursorAnchorInfoCounter());
+        assertHasNoInsertionMarker(immw.getLastCursorAnchorInfo());
+        immw.clearLastCursorAnchorInfo();
+
+        // Test a visible insertion marker.
+        controller.onUpdateFrameInfo(createRenderCoordinates(1.0f, 0.0f),
+                true, true, 10.0f, 23.0f, 29.0f, view);
+        assertEquals(2, immw.getUpdateCursorAnchorInfoCounter());
+        assertHasInsertionMarker(CursorAnchorInfo.FLAG_HAS_VISIBLE_REGION,
+                10.0f, 23.0f, 29.0f, 29.0f, immw.getLastCursorAnchorInfo());
+        immw.clearLastCursorAnchorInfo();
+
+        // Test a invisible insertion marker.
+        controller.onUpdateFrameInfo(createRenderCoordinates(1.0f, 0.0f),
+                true, false, 10.0f, 23.0f, 29.0f, view);
+        assertEquals(3, immw.getUpdateCursorAnchorInfoCounter());
+        assertHasInsertionMarker(CursorAnchorInfo.FLAG_HAS_INVISIBLE_REGION,
+                10.0f, 23.0f, 29.0f, 29.0f, immw.getLastCursorAnchorInfo());
+        immw.clearLastCursorAnchorInfo();
+    }
+
+    @SmallTest
+    @Feature({"Input-Text-IME"})
+    public void testMatrix() {
+        TestInputMethodManagerWrapper immw = new TestInputMethodManagerWrapper(null);
+        TestViewDelegate viewDelegate = new TestViewDelegate();
+        TestComposingTextDelegate composingTextDelegate = new TestComposingTextDelegate();
+        CursorAnchorInfoController controller = CursorAnchorInfoController.createForTest(
+                immw, composingTextDelegate, viewDelegate);
+        View view = null;
+
+        controller.focusedNodeChanged(true);
+        composingTextDelegate.clearTextAndSelection(controller);
+        assertTrue(controller.onRequestCursorUpdates(InputConnection.CURSOR_UPDATE_MONITOR, view));
+
+        // Test no transformation
+        viewDelegate.locationX = 0;
+        viewDelegate.locationY = 0;
+        controller.onUpdateFrameInfo(createRenderCoordinates(1.0f, 0.0f),
+                false, false, Float.NaN, Float.NaN, Float.NaN, view);
+        assertEquals(1, immw.getUpdateCursorAnchorInfoCounter());
+        assertScaleAndTranslate(1.0f, 0.0f, 0.0f, immw.getLastCursorAnchorInfo());
+        immw.clearLastCursorAnchorInfo();
+
+        // device scale factor == 2.0
+        viewDelegate.locationX = 0;
+        viewDelegate.locationY = 0;
+        controller.onUpdateFrameInfo(createRenderCoordinates(2.0f, 0.0f),
+                false, false, Float.NaN, Float.NaN, Float.NaN, view);
+        assertEquals(2, immw.getUpdateCursorAnchorInfoCounter());
+        assertScaleAndTranslate(2.0f, 0.0f, 0.0f, immw.getLastCursorAnchorInfo());
+        immw.clearLastCursorAnchorInfo();
+
+        // device scale factor == 2.0
+        // view origin == (10, 141)
+        viewDelegate.locationX = 10;
+        viewDelegate.locationY = 141;
+        controller.onUpdateFrameInfo(createRenderCoordinates(2.0f, 0.0f),
+                false, false, Float.NaN, Float.NaN, Float.NaN, view);
+        assertEquals(3, immw.getUpdateCursorAnchorInfoCounter());
+        assertScaleAndTranslate(2.0f, 10.0f, 141.0f, immw.getLastCursorAnchorInfo());
+        immw.clearLastCursorAnchorInfo();
+
+        // device scale factor == 2.0
+        // content offset Y = 40.0f
+        // view origin == (10, 141)
+        viewDelegate.locationX = 10;
+        viewDelegate.locationY = 141;
+        controller.onUpdateFrameInfo(createRenderCoordinates(2.0f, 40.0f),
+                false, false, Float.NaN, Float.NaN, Float.NaN, view);
+        assertEquals(4, immw.getUpdateCursorAnchorInfoCounter());
+        assertScaleAndTranslate(2.0f, 10.0f, 181.0f, immw.getLastCursorAnchorInfo());
+        immw.clearLastCursorAnchorInfo();
+    }
+}