1 /*
2  * Copyright (C) 2021 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.cts.inputmethod;
18 
19 import android.os.Bundle;
20 import android.view.KeyEvent;
21 import android.view.inputmethod.CompletionInfo;
22 import android.view.inputmethod.ExtractedText;
23 import android.view.inputmethod.ExtractedTextRequest;
24 import android.view.inputmethod.InputConnection;
25 
26 import androidx.annotation.AnyThread;
27 
28 /**
29  * A utility class to test compatibility with legacy apps that were built with old SDKs.
30  */
31 public final class LegacyImeClientTestUtils {
32 
33     /**
34      * Not intented to be instantiated.
35      */
LegacyImeClientTestUtils()36     private LegacyImeClientTestUtils() {
37     }
38 
39     private static final class MinimallyImplementedNoOpInputConnection implements InputConnection {
40         /**
41          * {@inheritDoc}
42          */
43         @Override
getTextBeforeCursor(int n, int flags)44         public CharSequence getTextBeforeCursor(int n, int flags) {
45             return null;
46         }
47 
48         /**
49          * {@inheritDoc}
50          */
51         @Override
getTextAfterCursor(int n, int flags)52         public CharSequence getTextAfterCursor(int n, int flags) {
53             return null;
54         }
55 
56         /**
57          * {@inheritDoc}
58          */
59         @Override
getCursorCapsMode(int reqModes)60         public int getCursorCapsMode(int reqModes) {
61             return 0;
62         }
63 
64         /**
65          * {@inheritDoc}
66          */
67         @Override
getExtractedText(ExtractedTextRequest request, int flags)68         public ExtractedText getExtractedText(ExtractedTextRequest request, int flags) {
69             return null;
70         }
71 
72         /**
73          * {@inheritDoc}
74          */
75         @Override
deleteSurroundingText(int beforeLength, int afterLength)76         public boolean deleteSurroundingText(int beforeLength, int afterLength) {
77             return false;
78         }
79 
80         /**
81          * {@inheritDoc}
82          */
83         @Override
setComposingText(CharSequence text, int newCursorPosition)84         public boolean setComposingText(CharSequence text, int newCursorPosition) {
85             return false;
86         }
87 
88         /**
89          * {@inheritDoc}
90          */
91         @Override
finishComposingText()92         public boolean finishComposingText() {
93             return false;
94         }
95 
96         /**
97          * {@inheritDoc}
98          */
99         @Override
commitText(CharSequence text, int newCursorPosition)100         public boolean commitText(CharSequence text, int newCursorPosition) {
101             return false;
102         }
103 
104         /**
105          * {@inheritDoc}
106          */
107         @Override
commitCompletion(CompletionInfo text)108         public boolean commitCompletion(CompletionInfo text) {
109             return false;
110         }
111 
112         /**
113          * {@inheritDoc}
114          */
115         @Override
setSelection(int start, int end)116         public boolean setSelection(int start, int end) {
117             return false;
118         }
119 
120         /**
121          * {@inheritDoc}
122          */
123         @Override
performEditorAction(int editorAction)124         public boolean performEditorAction(int editorAction) {
125             return false;
126         }
127 
128         /**
129          * {@inheritDoc}
130          */
131         @Override
performContextMenuAction(int id)132         public boolean performContextMenuAction(int id) {
133             return false;
134         }
135 
136         /**
137          * {@inheritDoc}
138          */
139         @Override
beginBatchEdit()140         public boolean beginBatchEdit() {
141             return false;
142         }
143 
144         /**
145          * {@inheritDoc}
146          */
147         @Override
endBatchEdit()148         public boolean endBatchEdit() {
149             return false;
150         }
151 
152         /**
153          * {@inheritDoc}
154          */
155         @Override
sendKeyEvent(KeyEvent event)156         public boolean sendKeyEvent(KeyEvent event) {
157             return false;
158         }
159 
160         /**
161          * {@inheritDoc}
162          */
163         @Override
clearMetaKeyStates(int states)164         public boolean clearMetaKeyStates(int states) {
165             return false;
166         }
167 
168         /**
169          * {@inheritDoc}
170          */
171         @Override
reportFullscreenMode(boolean enabled)172         public boolean reportFullscreenMode(boolean enabled) {
173             return false;
174         }
175 
176         /**
177          * {@inheritDoc}
178          */
179         @Override
performPrivateCommand(String action, Bundle data)180         public boolean performPrivateCommand(String action, Bundle data) {
181             return false;
182         }
183     }
184 
185     /**
186      * @return an instance of {@link InputConnection} that implements only methods that were
187      * available in {@link android.os.Build.VERSION_CODES#CUPCAKE}.
188      */
189     @AnyThread
createMinimallyImplementedNoOpInputConnection()190     public static InputConnection createMinimallyImplementedNoOpInputConnection() {
191         return new MinimallyImplementedNoOpInputConnection();
192     }
193 }
194