BaseInputConnection.java revision 6b53e8daa69cba1a2a5a7c95a01e37ce9c53226c
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/*
29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2008 The Android Open Source Project
39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project *
49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); you may not
59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * use this file except in compliance with the License. You may obtain a copy of
69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the License at
79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project *
89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0
99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project *
109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software
119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * License for the specific language governing permissions and limitations under
149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the License.
159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */
169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.view.inputmethod;
189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context;
209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.TypedArray;
219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Bundle;
229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Handler;
239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.SystemClock;
249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.Editable;
259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.NoCopySpan;
269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.Selection;
279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.Spannable;
289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.SpannableStringBuilder;
299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.Spanned;
309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextUtils;
319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.method.MetaKeyKeyListener;
329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.Log;
339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.LogPrinter;
349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyCharacterMap;
359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyEvent;
369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View;
379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewRoot;
389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectclass ComposingText implements NoCopySpan {
409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}
419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/**
439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Base class for implementors of the InputConnection interface, taking care
449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of most of the common behavior for providing a connection to an Editable.
459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Implementors of this class will want to be sure to implement
469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getEditable} to provide access to their own editable object.
479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */
489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class BaseInputConnection implements InputConnection {
499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    private static final boolean DEBUG = false;
509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    private static final String TAG = "BaseInputConnection";
519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    static final Object COMPOSING = new ComposingText();
529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    final InputMethodManager mIMM;
549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    final View mTargetView;
559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    final boolean mDummyMode;
569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    private Object[] mDefaultComposingSpans;
589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    Editable mEditable;
609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    KeyCharacterMap mKeyCharacterMap;
619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
621bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn    BaseInputConnection(InputMethodManager mgr, boolean fullEditor) {
639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        mIMM = mgr;
649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        mTargetView = null;
651bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn        mDummyMode = !fullEditor;
669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    }
679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
681bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn    public BaseInputConnection(View targetView, boolean fullEditor) {
699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        mIMM = (InputMethodManager)targetView.getContext().getSystemService(
709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                Context.INPUT_METHOD_SERVICE);
719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        mTargetView = targetView;
721bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn        mDummyMode = !fullEditor;
739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    }
749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public static final void removeComposingSpans(Spannable text) {
769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        text.removeSpan(COMPOSING);
779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        Object[] sps = text.getSpans(0, text.length(), Object.class);
789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (sps != null) {
799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            for (int i=sps.length-1; i>=0; i--) {
809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                Object o = sps[i];
819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                if ((text.getSpanFlags(o)&Spanned.SPAN_COMPOSING) != 0) {
829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                    text.removeSpan(o);
839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                }
849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            }
859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        }
869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    }
87a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani
889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public static void setComposingSpans(Spannable text) {
89a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani        setComposingSpans(text, 0, text.length());
90a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani    }
91a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani
92a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani    /** @hide */
93a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani    public static void setComposingSpans(Spannable text, int start, int end) {
94a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani        final Object[] sps = text.getSpans(start, end, Object.class);
959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (sps != null) {
969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            for (int i=sps.length-1; i>=0; i--) {
979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                final Object o = sps[i];
989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                if (o == COMPOSING) {
999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                    text.removeSpan(o);
1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                    continue;
1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                }
102a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani
1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                final int fl = text.getSpanFlags(o);
1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                if ((fl&(Spanned.SPAN_COMPOSING|Spanned.SPAN_POINT_MARK_MASK))
1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                        != (Spanned.SPAN_COMPOSING|Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)) {
1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                    text.setSpan(o, text.getSpanStart(o), text.getSpanEnd(o),
107a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani                            (fl & ~Spanned.SPAN_POINT_MARK_MASK)
1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                                    | Spanned.SPAN_COMPOSING
1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                                    | Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                }
1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            }
1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        }
113a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani
114a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani        text.setSpan(COMPOSING, start, end,
1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                Spanned.SPAN_EXCLUSIVE_EXCLUSIVE | Spanned.SPAN_COMPOSING);
1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    }
1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public static int getComposingSpanStart(Spannable text) {
1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        return text.getSpanStart(COMPOSING);
1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    }
1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public static int getComposingSpanEnd(Spannable text) {
1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        return text.getSpanEnd(COMPOSING);
1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    }
1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    /**
1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * Return the target of edit operations.  The default implementation
1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * returns its own fake editable that is just used for composing text;
1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * subclasses that are real text editors should override this and
1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * supply their own.
1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     */
1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public Editable getEditable() {
1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (mEditable == null) {
1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            mEditable = Editable.Factory.getInstance().newEditable("");
1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            Selection.setSelection(mEditable, 0);
1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        }
1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        return mEditable;
1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    }
1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    /**
1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * Default implementation does nothing.
1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     */
1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public boolean beginBatchEdit() {
1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        return false;
1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    }
1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    /**
1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * Default implementation does nothing.
1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     */
1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public boolean endBatchEdit() {
1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        return false;
1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    }
1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    /**
1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * Default implementation uses
1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * {@link MetaKeyKeyListener#clearMetaKeyState(long, int)
1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * MetaKeyKeyListener.clearMetaKeyState(long, int)} to clear the state.
1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     */
1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public boolean clearMetaKeyStates(int states) {
1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        final Editable content = getEditable();
1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (content == null) return false;
1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        MetaKeyKeyListener.clearMetaKeyState(content, states);
1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        return true;
1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    }
1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    /**
1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * Default implementation does nothing.
1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     */
1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public boolean commitCompletion(CompletionInfo text) {
1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        return false;
1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    }
1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    /**
1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * Default implementation replaces any existing composing text with
1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * the given text.  In addition, only if dummy mode, a key event is
1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * sent for the new text and the current editable buffer cleared.
1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     */
1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public boolean commitText(CharSequence text, int newCursorPosition) {
1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (DEBUG) Log.v(TAG, "commitText " + text);
1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        replaceText(text, newCursorPosition, false);
1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        sendCurrentText();
1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        return true;
1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    }
1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    /**
1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * The default implementation performs the deletion around the current
1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * selection position of the editable text.
1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     */
1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public boolean deleteSurroundingText(int leftLength, int rightLength) {
1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (DEBUG) Log.v(TAG, "deleteSurroundingText " + leftLength
1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                + " / " + rightLength);
1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        final Editable content = getEditable();
1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (content == null) return false;
1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        beginBatchEdit();
1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        int a = Selection.getSelectionStart(content);
1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        int b = Selection.getSelectionEnd(content);
1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (a > b) {
2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            int tmp = a;
2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            a = b;
2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            b = tmp;
2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        }
2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        // ignore the composing text.
2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        int ca = getComposingSpanStart(content);
2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        int cb = getComposingSpanEnd(content);
2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (cb < ca) {
2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            int tmp = ca;
2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            ca = cb;
2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            cb = tmp;
2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        }
2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (ca != -1 && cb != -1) {
2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            if (ca < a) a = ca;
2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            if (cb > b) b = cb;
2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        }
2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        int deleted = 0;
2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (leftLength > 0) {
2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            int start = a - leftLength;
2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            if (start < 0) start = 0;
2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            content.delete(start, a);
2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            deleted = a - start;
2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        }
2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (rightLength > 0) {
2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            b = b - deleted;
2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            int end = b + rightLength;
2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            if (end > content.length()) end = content.length();
2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            content.delete(b, end);
2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        }
2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        endBatchEdit();
2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        return true;
2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    }
2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    /**
2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * The default implementation removes the composing state from the
2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * current editable text.  In addition, only if dummy mode, a key event is
2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * sent for the new text and the current editable buffer cleared.
2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     */
2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public boolean finishComposingText() {
2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (DEBUG) Log.v(TAG, "finishComposingText");
2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        final Editable content = getEditable();
2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (content != null) {
2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            beginBatchEdit();
2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            removeComposingSpans(content);
2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            endBatchEdit();
2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            sendCurrentText();
2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        }
2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        return true;
2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    }
2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    /**
2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * The default implementation uses TextUtils.getCapsMode to get the
2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * cursor caps mode for the current selection position in the editable
2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * text, unless in dummy mode in which case 0 is always returned.
2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     */
2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public int getCursorCapsMode(int reqModes) {
2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (mDummyMode) return 0;
2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        final Editable content = getEditable();
2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (content == null) return 0;
2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        int a = Selection.getSelectionStart(content);
2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        int b = Selection.getSelectionEnd(content);
2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (a > b) {
2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            int tmp = a;
2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            a = b;
2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            b = tmp;
2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        }
2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        return TextUtils.getCapsMode(content, a, reqModes);
2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    }
2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    /**
2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * The default implementation always returns null.
2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     */
2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public ExtractedText getExtractedText(ExtractedTextRequest request, int flags) {
2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        return null;
2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    }
2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    /**
2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * The default implementation returns the given amount of text from the
2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * current cursor position in the buffer.
2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     */
2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public CharSequence getTextBeforeCursor(int length, int flags) {
2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        final Editable content = getEditable();
2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (content == null) return null;
2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        int a = Selection.getSelectionStart(content);
2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        int b = Selection.getSelectionEnd(content);
2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (a > b) {
3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            int tmp = a;
3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            a = b;
3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            b = tmp;
3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        }
3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
306a465a170ce5d7155580fd308d1e50092365117e4Dianne Hackborn        if (a <= 0) {
307a465a170ce5d7155580fd308d1e50092365117e4Dianne Hackborn            return "";
308a465a170ce5d7155580fd308d1e50092365117e4Dianne Hackborn        }
309a465a170ce5d7155580fd308d1e50092365117e4Dianne Hackborn
3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (length > a) {
3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            length = a;
3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        }
3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if ((flags&GET_TEXT_WITH_STYLES) != 0) {
3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            return content.subSequence(a - length, a);
3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        }
3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        return TextUtils.substring(content, a - length, a);
3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    }
3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    /**
321a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani     * The default implementation returns the text currently selected, or null if none is
322a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani     * selected.
323a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani     */
324a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani    public CharSequence getSelectedText(int flags) {
325a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani        final Editable content = getEditable();
326a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani        if (content == null) return null;
327a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani
328a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani        int a = Selection.getSelectionStart(content);
329a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani        int b = Selection.getSelectionEnd(content);
330a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani
331a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani        if (a > b) {
332a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani            int tmp = a;
333a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani            a = b;
334a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani            b = tmp;
335a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani        }
336a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani
337a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani        if (a == b) return null;
338a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani
339a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani        if ((flags&GET_TEXT_WITH_STYLES) != 0) {
340a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani            return content.subSequence(a, b);
341a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani        }
342a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani        return TextUtils.substring(content, a, b);
343a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani    }
344a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani
345a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani    /**
3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * The default implementation returns the given amount of text from the
3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * current cursor position in the buffer.
3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     */
3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public CharSequence getTextAfterCursor(int length, int flags) {
3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        final Editable content = getEditable();
3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (content == null) return null;
3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        int a = Selection.getSelectionStart(content);
3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        int b = Selection.getSelectionEnd(content);
3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (a > b) {
3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            int tmp = a;
3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            a = b;
3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            b = tmp;
3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        }
3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
3621127895fd42111f95fdc5049141c512e60198292Eric Fischer        // Guard against the case where the cursor has not been positioned yet.
3631127895fd42111f95fdc5049141c512e60198292Eric Fischer        if (b < 0) {
3641127895fd42111f95fdc5049141c512e60198292Eric Fischer            b = 0;
3651127895fd42111f95fdc5049141c512e60198292Eric Fischer        }
3661127895fd42111f95fdc5049141c512e60198292Eric Fischer
3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (b + length > content.length()) {
3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            length = content.length() - b;
3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        }
3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if ((flags&GET_TEXT_WITH_STYLES) != 0) {
3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            return content.subSequence(b, b + length);
3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        }
3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        return TextUtils.substring(content, b, b + length);
3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    }
3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    /**
37986d56cca9ce23b0f4814418d7c71ec11ea9fd278Dianne Hackborn     * The default implementation turns this into the enter key.
3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     */
3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public boolean performEditorAction(int actionCode) {
38286d56cca9ce23b0f4814418d7c71ec11ea9fd278Dianne Hackborn        long eventTime = SystemClock.uptimeMillis();
38386d56cca9ce23b0f4814418d7c71ec11ea9fd278Dianne Hackborn        sendKeyEvent(new KeyEvent(eventTime, eventTime,
3846b53e8daa69cba1a2a5a7c95a01e37ce9c53226cJeff Brown                KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_ENTER, 0, 0,
3856b53e8daa69cba1a2a5a7c95a01e37ce9c53226cJeff Brown                KeyCharacterMap.VIRTUAL_KEYBOARD, 0,
38686d56cca9ce23b0f4814418d7c71ec11ea9fd278Dianne Hackborn                KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE
38786d56cca9ce23b0f4814418d7c71ec11ea9fd278Dianne Hackborn                | KeyEvent.FLAG_EDITOR_ACTION));
38886d56cca9ce23b0f4814418d7c71ec11ea9fd278Dianne Hackborn        sendKeyEvent(new KeyEvent(SystemClock.uptimeMillis(), eventTime,
3896b53e8daa69cba1a2a5a7c95a01e37ce9c53226cJeff Brown                KeyEvent.ACTION_UP, KeyEvent.KEYCODE_ENTER, 0, 0,
3906b53e8daa69cba1a2a5a7c95a01e37ce9c53226cJeff Brown                KeyCharacterMap.VIRTUAL_KEYBOARD, 0,
39186d56cca9ce23b0f4814418d7c71ec11ea9fd278Dianne Hackborn                KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE
39286d56cca9ce23b0f4814418d7c71ec11ea9fd278Dianne Hackborn                | KeyEvent.FLAG_EDITOR_ACTION));
39386d56cca9ce23b0f4814418d7c71ec11ea9fd278Dianne Hackborn        return true;
3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    }
3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    /**
3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * The default implementation does nothing.
3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     */
3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public boolean performContextMenuAction(int id) {
4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        return false;
4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    }
4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    /**
4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * The default implementation does nothing.
4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     */
4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public boolean performPrivateCommand(String action, Bundle data) {
4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        return false;
4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    }
4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    /**
4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * The default implementation places the given text into the editable,
4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * replacing any existing composing text.  The new text is marked as
4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * in a composing state with the composing style.
4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     */
4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public boolean setComposingText(CharSequence text, int newCursorPosition) {
4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (DEBUG) Log.v(TAG, "setComposingText " + text);
4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        replaceText(text, newCursorPosition, true);
4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        return true;
4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    }
4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
421a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani    public boolean setComposingRegion(int start, int end) {
422a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani        final Editable content = getEditable();
423a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani        if (content != null) {
424a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani            beginBatchEdit();
425a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani            removeComposingSpans(content);
426a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani            int a = start;
427a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani            int b = end;
428a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani            if (a > b) {
429a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani                int tmp = a;
430a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani                a = b;
431a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani                b = tmp;
432a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani            }
4334198918eed8e44723417fad8a986cda664c92d5bAmith Yamasani            // Clip the end points to be within the content bounds.
4344198918eed8e44723417fad8a986cda664c92d5bAmith Yamasani            final int length = content.length();
435a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani            if (a < 0) a = 0;
4364198918eed8e44723417fad8a986cda664c92d5bAmith Yamasani            if (b < 0) b = 0;
4374198918eed8e44723417fad8a986cda664c92d5bAmith Yamasani            if (a > length) a = length;
4384198918eed8e44723417fad8a986cda664c92d5bAmith Yamasani            if (b > length) b = length;
439a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani
440a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani            ensureDefaultComposingSpans();
441a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani            if (mDefaultComposingSpans != null) {
442a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani                for (int i = 0; i < mDefaultComposingSpans.length; ++i) {
443a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani                    content.setSpan(mDefaultComposingSpans[i], a, b,
444a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani                            Spanned.SPAN_EXCLUSIVE_EXCLUSIVE | Spanned.SPAN_COMPOSING);
445a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani                }
446a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani            }
447a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani
448a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani            content.setSpan(COMPOSING, a, b,
449a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani                    Spanned.SPAN_EXCLUSIVE_EXCLUSIVE | Spanned.SPAN_COMPOSING);
450a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani
451a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani            endBatchEdit();
452a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani            sendCurrentText();
453a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani        }
454a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani        return true;
455a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani    }
456a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani
4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    /**
4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * The default implementation changes the selection position in the
4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * current editable text.
4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     */
4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public boolean setSelection(int start, int end) {
4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (DEBUG) Log.v(TAG, "setSelection " + start + ", " + end);
4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        final Editable content = getEditable();
4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (content == null) return false;
4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        int len = content.length();
4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (start > len || end > len) {
4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            // If the given selection is out of bounds, just ignore it.
4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            // Most likely the text was changed out from under the IME,
4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            // the the IME is going to have to update all of its state
4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            // anyway.
4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            return true;
4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        }
473b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project        if (start == end && MetaKeyKeyListener.getMetaState(content,
474b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project                MetaKeyKeyListener.META_SELECTING) != 0) {
475b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project            // If we are in selection mode, then we want to extend the
476b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project            // selection instead of replacing it.
477b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project            Selection.extendSelection(content, start);
478b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project        } else {
479b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project            Selection.setSelection(content, start, end);
480b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project        }
4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        return true;
4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    }
4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    /**
4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * Provides standard implementation for sending a key event to the window
4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * attached to the input connection's view.
4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     */
4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public boolean sendKeyEvent(KeyEvent event) {
4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        synchronized (mIMM.mH) {
4901bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn            Handler h = mTargetView != null ? mTargetView.getHandler() : null;
4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            if (h == null) {
4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                if (mIMM.mServedView != null) {
4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                    h = mIMM.mServedView.getHandler();
4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                }
4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            }
4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            if (h != null) {
4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                h.sendMessage(h.obtainMessage(ViewRoot.DISPATCH_KEY_FROM_IME,
4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                        event));
4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            }
5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        }
5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        return false;
5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    }
5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    /**
5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     * Updates InputMethodManager with the current fullscreen mode.
5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project     */
5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public boolean reportFullscreenMode(boolean enabled) {
5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        mIMM.setFullscreenMode(enabled);
5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        return true;
5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    }
5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    private void sendCurrentText() {
5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (!mDummyMode) {
5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            return;
5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        }
5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        Editable content = getEditable();
5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (content != null) {
5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            final int N = content.length();
5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            if (N == 0) {
5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                return;
5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            }
5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            if (N == 1) {
5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                // If it's 1 character, we have a chance of being
5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                // able to generate normal key events...
5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                if (mKeyCharacterMap == null) {
5276b53e8daa69cba1a2a5a7c95a01e37ce9c53226cJeff Brown                    mKeyCharacterMap = KeyCharacterMap.load(KeyCharacterMap.VIRTUAL_KEYBOARD);
5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                }
5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                char[] chars = new char[1];
5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                content.getChars(0, 1, chars, 0);
5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                KeyEvent[] events = mKeyCharacterMap.getEvents(chars);
5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                if (events != null) {
5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                    for (int i=0; i<events.length; i++) {
5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                        if (DEBUG) Log.v(TAG, "Sending: " + events[i]);
5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                        sendKeyEvent(events[i]);
5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                    }
5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                    content.clear();
5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                    return;
5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                }
5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            }
5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            // Otherwise, revert to the special key event containing
5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            // the actual characters.
5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            KeyEvent event = new KeyEvent(SystemClock.uptimeMillis(),
5456b53e8daa69cba1a2a5a7c95a01e37ce9c53226cJeff Brown                    content.toString(), KeyCharacterMap.VIRTUAL_KEYBOARD, 0);
5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            sendKeyEvent(event);
5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            content.clear();
5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        }
5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    }
550a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani
551a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani    private void ensureDefaultComposingSpans() {
552a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani        if (mDefaultComposingSpans == null) {
553a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani            Context context;
554a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani            if (mTargetView != null) {
555a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani                context = mTargetView.getContext();
556a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani            } else if (mIMM.mServedView != null) {
557a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani                context = mIMM.mServedView.getContext();
558a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani            } else {
559a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani                context = null;
560a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani            }
561a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani            if (context != null) {
562a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani                TypedArray ta = context.getTheme()
563a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani                        .obtainStyledAttributes(new int[] {
564a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani                                com.android.internal.R.attr.candidatesTextStyleSpans
565a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani                        });
566a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani                CharSequence style = ta.getText(0);
567a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani                ta.recycle();
568a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani                if (style != null && style instanceof Spanned) {
569a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani                    mDefaultComposingSpans = ((Spanned)style).getSpans(
570a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani                            0, style.length(), Object.class);
571a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani                }
572a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani            }
573a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani        }
574a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani    }
575a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani
5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    private void replaceText(CharSequence text, int newCursorPosition,
5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            boolean composing) {
5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        final Editable content = getEditable();
5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (content == null) {
5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            return;
5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        }
5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        beginBatchEdit();
5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        // delete composing text set previously.
5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        int a = getComposingSpanStart(content);
5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        int b = getComposingSpanEnd(content);
5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (DEBUG) Log.v(TAG, "Composing span: " + a + " to " + b);
5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
5919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (b < a) {
5929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            int tmp = a;
5939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            a = b;
5949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            b = tmp;
5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        }
5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (a != -1 && b != -1) {
5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            removeComposingSpans(content);
5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        } else {
6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            a = Selection.getSelectionStart(content);
6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            b = Selection.getSelectionEnd(content);
602a465a170ce5d7155580fd308d1e50092365117e4Dianne Hackborn            if (a < 0) a = 0;
603a465a170ce5d7155580fd308d1e50092365117e4Dianne Hackborn            if (b < 0) b = 0;
604a465a170ce5d7155580fd308d1e50092365117e4Dianne Hackborn            if (b < a) {
605a465a170ce5d7155580fd308d1e50092365117e4Dianne Hackborn                int tmp = a;
606a465a170ce5d7155580fd308d1e50092365117e4Dianne Hackborn                a = b;
607a465a170ce5d7155580fd308d1e50092365117e4Dianne Hackborn                b = tmp;
6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            }
6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        }
6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
6119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (composing) {
6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            Spannable sp = null;
6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            if (!(text instanceof Spannable)) {
6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                sp = new SpannableStringBuilder(text);
6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                text = sp;
616a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani                ensureDefaultComposingSpans();
6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                if (mDefaultComposingSpans != null) {
6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                    for (int i = 0; i < mDefaultComposingSpans.length; ++i) {
6199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                        sp.setSpan(mDefaultComposingSpans[i], 0, sp.length(),
620a90b7f0125389b9e1040d2be82aad4ef74ea6071Amith Yamasani                                Spanned.SPAN_EXCLUSIVE_EXCLUSIVE | Spanned.SPAN_COMPOSING);
6219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                    }
6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                }
6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            } else {
6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                sp = (Spannable)text;
6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            }
6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            setComposingSpans(sp);
6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        }
6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (DEBUG) Log.v(TAG, "Replacing from " + a + " to " + b + " with \""
6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                + text + "\", composing=" + composing
6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                + ", type=" + text.getClass().getCanonicalName());
6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (DEBUG) {
6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            LogPrinter lp = new LogPrinter(Log.VERBOSE, TAG);
6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            lp.println("Current text:");
6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            TextUtils.dumpSpans(content, lp, "  ");
6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            lp.println("Composing text:");
6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            TextUtils.dumpSpans(text, lp, "  ");
6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        }
6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        // Position the cursor appropriately, so that after replacing the
6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        // desired range of text it will be located in the correct spot.
6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        // This allows us to deal with filters performing edits on the text
6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        // we are providing here.
6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (newCursorPosition > 0) {
6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            newCursorPosition += b - 1;
6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        } else {
6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            newCursorPosition += a;
6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        }
6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (newCursorPosition < 0) newCursorPosition = 0;
6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (newCursorPosition > content.length())
6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            newCursorPosition = content.length();
6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        Selection.setSelection(content, newCursorPosition);
6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        content.replace(a, b, text);
6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (DEBUG) {
6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            LogPrinter lp = new LogPrinter(Log.VERBOSE, TAG);
6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            lp.println("Final text:");
6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            TextUtils.dumpSpans(content, lp, "  ");
6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        }
6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        endBatchEdit();
6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    }
6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}
666