Introduce ThreadedInputConnection behind a switch

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

-// Copyright 2013 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.content.Context;
-import android.os.IBinder;
-import android.os.ResultReceiver;
-import android.test.suitebuilder.annotation.MediumTest;
-import android.test.suitebuilder.annotation.SmallTest;
-import android.view.View;
-import android.view.inputmethod.EditorInfo;
-
-import org.chromium.base.test.util.Feature;
-import org.chromium.content.browser.input.AdapterInputConnection.ImeState;
-import org.chromium.content_shell_apk.ContentShellTestBase;
-
-import java.util.ArrayList;
-
-/**
- * Tests AdapterInputConnection class and its callbacks to ImeAdapter.
- */
-public class AdapterInputConnectionTest extends ContentShellTestBase {
-
-    private AdapterInputConnection mConnection;
-    private TestInputMethodManagerWrapper mWrapper;
-    private TestImeAdapter mImeAdapter;
-
-    @Override
-    public void setUp() throws Exception {
-        super.setUp();
-        launchContentShellWithUrl("about:blank");
-        waitForActiveShellToBeDoneLoading();
-        mWrapper = new TestInputMethodManagerWrapper(getActivity());
-        TestImeAdapterDelegate imeAdapterDelegate =
-                new TestImeAdapterDelegate(getContentViewCore().getContainerView());
-        mImeAdapter = new TestImeAdapter(mWrapper, imeAdapterDelegate);
-        mConnection = new AdapterInputConnection(
-                getContentViewCore().getContainerView(), mImeAdapter, 0, 0, new EditorInfo());
-    }
-
-    @SmallTest
-    @Feature({"TextInput", "Main"})
-    public void testAdjustLengthBeforeAndAfterSelection() throws Throwable {
-        final String ga = "\uAC00";
-        final String smiley = "\uD83D\uDE0A"; // multi character codepoint
-
-        // No need to adjust length.
-        assertFalse(AdapterInputConnection.isIndexBetweenUtf16SurrogatePair("a", 0));
-        assertFalse(AdapterInputConnection.isIndexBetweenUtf16SurrogatePair(ga, 0));
-        assertFalse(AdapterInputConnection.isIndexBetweenUtf16SurrogatePair("aa", 1));
-        assertFalse(AdapterInputConnection.isIndexBetweenUtf16SurrogatePair("a" + smiley + "a", 1));
-
-        // Needs to adjust length.
-        assertTrue(AdapterInputConnection.isIndexBetweenUtf16SurrogatePair(smiley, 1));
-        assertTrue(AdapterInputConnection.isIndexBetweenUtf16SurrogatePair(smiley + "a", 1));
-    }
-
-    @MediumTest
-    @Feature({"TextInput", "Main"})
-    @RerunWithUpdatedContainerView
-    public void testSetComposingText() throws Throwable {
-        mConnection.setComposingText("t", 1);
-        assertCorrectState("t", 1, 1, 0, 1, mConnection.getImeStateForTesting());
-        mWrapper.verifyUpdateSelectionCall(0, 1, 1, 0, 1);
-
-        mConnection.setComposingText("te", 1);
-        assertCorrectState("te", 2, 2, 0, 2, mConnection.getImeStateForTesting());
-        mWrapper.verifyUpdateSelectionCall(1, 2, 2, 0, 2);
-
-        mConnection.setComposingText("tes", 1);
-        assertCorrectState("tes", 3, 3, 0, 3, mConnection.getImeStateForTesting());
-        mWrapper.verifyUpdateSelectionCall(2, 3, 3, 0, 3);
-
-        mConnection.setComposingText("test", 1);
-        assertCorrectState("test", 4, 4, 0, 4, mConnection.getImeStateForTesting());
-        mWrapper.verifyUpdateSelectionCall(3, 4, 4, 0, 4);
-    }
-
-    @MediumTest
-    @Feature({"TextInput", "Main"})
-    public void testSelectionUpdatesDuringBatch() throws Throwable {
-        mConnection.beginBatchEdit();
-        mConnection.setComposingText("t", 1);
-        assertEquals(0, mWrapper.getUpdateSelectionCallCount());
-        mConnection.setComposingText("te", 1);
-        assertEquals(0, mWrapper.getUpdateSelectionCallCount());
-        mConnection.beginBatchEdit();
-        mConnection.setComposingText("tes", 1);
-        assertEquals(0, mWrapper.getUpdateSelectionCallCount());
-        mConnection.endBatchEdit();
-        mConnection.setComposingText("test", 1);
-        assertEquals(0, mWrapper.getUpdateSelectionCallCount());
-        mConnection.endBatchEdit();
-        assertEquals(1, mWrapper.getUpdateSelectionCallCount());
-        mWrapper.verifyUpdateSelectionCall(0, 4, 4, 0, 4);
-    }
-
-    private static class TestImeAdapter extends ImeAdapter {
-        private final ArrayList<Integer> mKeyEventQueue = new ArrayList<Integer>();
-
-        public TestImeAdapter(InputMethodManagerWrapper wrapper, ImeAdapterDelegate embedder) {
-            super(wrapper, embedder);
-        }
-
-        @Override
-        public void sendSyntheticKeyPress(int keyCode, int flags) {
-            mKeyEventQueue.add(keyCode);
-        }
-    }
-
-    private static class TestInputMethodManagerWrapper extends InputMethodManagerWrapper {
-        private final ArrayList<ImeState> mUpdates = new ArrayList<ImeState>();
-
-        public TestInputMethodManagerWrapper(Context context) {
-            super(context);
-        }
-
-        @Override
-        public void restartInput(View view) {}
-
-        @Override
-        public void showSoftInput(View view, int flags, ResultReceiver resultReceiver) {}
-
-        @Override
-        public boolean isActive(View view) {
-            return true;
-        }
-
-        @Override
-        public boolean hideSoftInputFromWindow(IBinder windowToken, int flags,
-                ResultReceiver resultReceiver) {
-            return true;
-        }
-
-        @Override
-        public void updateSelection(View view, int selStart, int selEnd,
-                int candidatesStart, int candidatesEnd) {
-            mUpdates.add(new ImeState("", selStart, selEnd, candidatesStart, candidatesEnd));
-        }
-
-        public int getUpdateSelectionCallCount() {
-            return mUpdates.size();
-        }
-
-        public void verifyUpdateSelectionCall(int index, int selectionStart, int selectionEnd,
-                int compositionStart, int compositionEnd) {
-            ImeState state = mUpdates.get(index);
-            assertEquals("Selection start did not match", selectionStart, state.selectionStart);
-            assertEquals("Selection end did not match", selectionEnd, state.selectionEnd);
-            assertEquals("Composition start did not match", compositionStart,
-                    state.compositionStart);
-            assertEquals("Composition end did not match", compositionEnd, state.compositionEnd);
-        }
-    }
-
-    private static void assertCorrectState(String text, int selectionStart, int selectionEnd,
-            int compositionStart, int compositionEnd, ImeState actual) {
-        assertEquals("Text did not match", text, actual.text);
-        assertEquals("Selection start did not match", selectionStart, actual.selectionStart);
-        assertEquals("Selection end did not match", selectionEnd, actual.selectionEnd);
-        assertEquals("Composition start did not match", compositionStart, actual.compositionStart);
-        assertEquals("Composition end did not match", compositionEnd, actual.compositionEnd);
-    }
-}