EditableInputConnection.java revision 1bf5e22da72b477c8b7a45ed85a4dba94be39db5
1/*
2 * Copyright (C) 2007-2008 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
5 * use this file except in compliance with the License. You may obtain a copy of
6 * 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, WITHOUT
12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13 * License for the specific language governing permissions and limitations under
14 * the License.
15 */
16
17package com.android.internal.widget;
18
19import android.os.Bundle;
20import android.text.Editable;
21import android.text.method.KeyListener;
22import android.util.Log;
23import android.view.inputmethod.BaseInputConnection;
24import android.view.inputmethod.CompletionInfo;
25import android.view.inputmethod.ExtractedText;
26import android.view.inputmethod.ExtractedTextRequest;
27import android.widget.TextView;
28
29public class EditableInputConnection extends BaseInputConnection {
30    private static final boolean DEBUG = false;
31    private static final String TAG = "EditableInputConnection";
32
33    private final TextView mTextView;
34
35    public EditableInputConnection(TextView textview) {
36        super(textview, true);
37        mTextView = textview;
38    }
39
40    public Editable getEditable() {
41        TextView tv = mTextView;
42        if (tv != null) {
43            return tv.getEditableText();
44        }
45        return null;
46    }
47
48    public boolean beginBatchEdit() {
49        mTextView.beginBatchEdit();
50        return true;
51    }
52
53    public boolean endBatchEdit() {
54        mTextView.endBatchEdit();
55        return true;
56    }
57
58    public boolean clearMetaKeyStates(int states) {
59        final Editable content = getEditable();
60        if (content == null) return false;
61        KeyListener kl = mTextView.getKeyListener();
62        if (kl != null) {
63            try {
64                kl.clearMetaKeyState(mTextView, content, states);
65            } catch (AbstractMethodError e) {
66                // This is an old listener that doesn't implement the
67                // new method.
68            }
69        }
70        return true;
71    }
72
73    public boolean commitCompletion(CompletionInfo text) {
74        if (DEBUG) Log.v(TAG, "commitCompletion " + text);
75        mTextView.beginBatchEdit();
76        mTextView.onCommitCompletion(text);
77        mTextView.endBatchEdit();
78        return true;
79    }
80
81    public boolean performEditorAction(int actionCode) {
82        if (DEBUG) Log.v(TAG, "performEditorAction " + actionCode);
83        mTextView.onEditorAction(actionCode);
84        return true;
85    }
86
87    public boolean performContextMenuAction(int id) {
88        if (DEBUG) Log.v(TAG, "performContextMenuAction " + id);
89        mTextView.beginBatchEdit();
90        mTextView.onTextContextMenuItem(id);
91        mTextView.endBatchEdit();
92        return true;
93    }
94
95    public ExtractedText getExtractedText(ExtractedTextRequest request, int flags) {
96        if (mTextView != null) {
97            ExtractedText et = new ExtractedText();
98            if (mTextView.extractText(request, et)) {
99                if ((flags&GET_EXTRACTED_TEXT_MONITOR) != 0) {
100                    mTextView.setExtracting(request);
101                }
102                return et;
103            }
104        }
105        return null;
106    }
107
108    public boolean performPrivateCommand(String action, Bundle data) {
109        mTextView.onPrivateIMECommand(action, data);
110        return true;
111    }
112
113    @Override
114    public boolean commitText(CharSequence text, int newCursorPosition) {
115        if (mTextView == null) {
116            return super.commitText(text, newCursorPosition);
117        }
118
119        CharSequence errorBefore = mTextView.getError();
120        boolean success = super.commitText(text, newCursorPosition);
121        CharSequence errorAfter = mTextView.getError();
122
123        if (errorAfter != null && errorBefore == errorAfter) {
124            mTextView.setError(null, null);
125        }
126
127        return success;
128    }
129}
130