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Move Range out of RichInputConnection and rename it. 

Range has grown a bit too big to stay an internal class.

Change-Id: Ic3fbc48a5d10776eedd7559c4d696e5926b88288
main
Jean Chalard 2013-06-25 17:28:39 +09:00
parent 8142a7b637
commit 675bcf191c
5 changed files with 129 additions and 108 deletions
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4
java/src/com/android/inputmethod/latin/LatinIME.java
View File

@ -73,7 +73,6 @@ import com.android.inputmethod.keyboard.KeyboardActionListener;
import com.android.inputmethod.keyboard.KeyboardId;
import com.android.inputmethod.keyboard.KeyboardSwitcher;
import com.android.inputmethod.keyboard.MainKeyboardView;
import com.android.inputmethod.latin.RichInputConnection.Range;
import com.android.inputmethod.latin.SuggestedWords.SuggestedWordInfo;
import com.android.inputmethod.latin.define.ProductionFlag;
import com.android.inputmethod.latin.suggestions.SuggestionStripView;
@ -87,6 +86,7 @@ import com.android.inputmethod.latin.utils.PositionalInfoForUserDictPendingAddit
import com.android.inputmethod.latin.utils.RecapitalizeStatus;
import com.android.inputmethod.latin.utils.StaticInnerHandlerWrapper;
import com.android.inputmethod.latin.utils.TargetPackageInfoGetterTask;
import com.android.inputmethod.latin.utils.TextRange;
import com.android.inputmethod.latin.utils.Utils;
import com.android.inputmethod.latin.utils.Utils.Stats;
import com.android.inputmethod.research.ResearchLogger;
@ -2514,7 +2514,7 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
// If we don't know the cursor location, return.
if (mLastSelectionStart < 0) return;
if (!mConnection.isCursorTouchingWord(mSettings.getCurrent())) return;
final Range range = mConnection.getWordRangeAtCursor(mSettings.getWordSeparators(),
final TextRange range = mConnection.getWordRangeAtCursor(mSettings.getWordSeparators(),
0 /* additionalPrecedingWordsCount */);
if (null == range) return; // Happens if we don't have an input connection at all
// If for some strange reason (editor bug or so) we measure the text before the cursor as

105
java/src/com/android/inputmethod/latin/RichInputConnection.java
View File

@ -17,9 +17,7 @@
package com.android.inputmethod.latin;
import android.inputmethodservice.InputMethodService;
import android.text.Spanned;
import android.text.TextUtils;
import android.text.style.SuggestionSpan;
import android.util.Log;
import android.view.KeyEvent;
import android.view.inputmethod.CompletionInfo;
@ -32,9 +30,9 @@ import com.android.inputmethod.latin.define.ProductionFlag;
import com.android.inputmethod.latin.utils.CapsModeUtils;
import com.android.inputmethod.latin.utils.DebugLogUtils;
import com.android.inputmethod.latin.utils.StringUtils;
import com.android.inputmethod.latin.utils.TextRange;
import com.android.inputmethod.research.ResearchLogger;
import java.util.Arrays;
import java.util.Locale;
import java.util.regex.Pattern;
@ -441,100 +439,6 @@ public final class RichInputConnection {
return getNthPreviousWord(prev, sentenceSeperators, n);
}
/**
* Represents a range of text, relative to the current cursor position.
*/
public static final class Range {
private final CharSequence mTextAtCursor;
private final int mWordAtCursorStartIndex;
private final int mWordAtCursorEndIndex;
private final int mCursorIndex;
public final CharSequence mWord;
public int getNumberOfCharsInWordBeforeCursor() {
return mCursorIndex - mWordAtCursorStartIndex;
}
public int getNumberOfCharsInWordAfterCursor() {
return mWordAtCursorEndIndex - mCursorIndex;
}
/**
* Gets the suggestion spans that are put squarely on the word, with the exact start
* and end of the span matching the boundaries of the word.
* @return the list of spans.
*/
public SuggestionSpan[] getSuggestionSpansAtWord() {
if (!(mTextAtCursor instanceof Spanned && mWord instanceof Spanned)) {
return new SuggestionSpan[0];
}
final Spanned text = (Spanned)mTextAtCursor;
// Note: it's fine to pass indices negative or greater than the length of the string
// to the #getSpans() method. The reason we need to get from -1 to +1 is that, the
// spans were cut at the cursor position, and #getSpans(start, end) does not return
// spans that end at `start' or begin at `end'. Consider the following case:
// this| is (The | symbolizes the cursor position
// ---- ---
// In this case, the cursor is in position 4, so the 0~7 span has been split into
// a 0~4 part and a 4~7 part.
// If we called #getSpans(0, 4) in this case, we would only get the part from 0 to 4
// of the span, and not the part from 4 to 7, so we would not realize the span actually
// extends from 0 to 7. But if we call #getSpans(-1, 5) we'll get both the 0~4 and
// the 4~7 spans and we can merge them accordingly.
// Any span starting more than 1 char away from the word boundaries in any direction
// does not touch the word, so we don't need to consider it. That's why requesting
// -1 ~ +1 is enough.
// Of course this is only relevant if the cursor is at one end of the word. If it's
// in the middle, the -1 and +1 are not necessary, but they are harmless.
final SuggestionSpan[] spans = text.getSpans(mWordAtCursorStartIndex - 1,
mWordAtCursorEndIndex + 1, SuggestionSpan.class);
int readIndex = 0;
int writeIndex = 0;
for (; readIndex < spans.length; ++readIndex) {
final SuggestionSpan span = spans[readIndex];
// The span may be null, as we null them when we find duplicates. Cf a few lines
// down.
if (null == span) continue;
// Tentative span start and end. This may be modified later if we realize the
// same span is also applied to other parts of the string.
int spanStart = text.getSpanStart(span);
int spanEnd = text.getSpanEnd(span);
for (int i = readIndex + 1; i < spans.length; ++i) {
if (span.equals(spans[i])) {
// We found the same span somewhere else. Read the new extent of this
// span, and adjust our values accordingly.
spanStart = Math.min(spanStart, text.getSpanStart(spans[i]));
spanEnd = Math.max(spanEnd, text.getSpanEnd(spans[i]));
// ...and mark the span as processed.
spans[i] = null;
}
}
if (spanStart == mWordAtCursorStartIndex && spanEnd == mWordAtCursorEndIndex) {
// If the span does not start and stop here, we ignore it. It probably extends
// past the start or end of the word, as happens in missing space correction
// or EasyEditSpans put by voice input.
spans[writeIndex++] = spans[readIndex];
}
}
return writeIndex == readIndex ? spans : Arrays.copyOfRange(spans, 0, writeIndex);
}
public Range(final CharSequence textAtCursor, final int wordAtCursorStartIndex,
final int wordAtCursorEndIndex, final int cursorIndex) {
if (wordAtCursorStartIndex < 0 || cursorIndex < wordAtCursorStartIndex
|| cursorIndex > wordAtCursorEndIndex
|| wordAtCursorEndIndex > textAtCursor.length()) {
throw new IndexOutOfBoundsException();
}
mTextAtCursor = textAtCursor;
mWordAtCursorStartIndex = wordAtCursorStartIndex;
mWordAtCursorEndIndex = wordAtCursorEndIndex;
mCursorIndex = cursorIndex;
mWord = mTextAtCursor.subSequence(mWordAtCursorStartIndex, mWordAtCursorEndIndex);
}
}
private static boolean isSeparator(int code, String sep) {
return sep.indexOf(code) != -1;
}
@ -581,7 +485,7 @@ public final class RichInputConnection {
*/
public CharSequence getWordAtCursor(String separators) {
// getWordRangeAtCursor returns null if the connection is null
Range r = getWordRangeAtCursor(separators, 0);
TextRange r = getWordRangeAtCursor(separators, 0);
return (r == null) ? null : r.mWord;
}
@ -593,7 +497,8 @@ public final class RichInputConnection {
* be included in the returned range
* @return a range containing the text surrounding the cursor
*/
public Range getWordRangeAtCursor(final String sep, final int additionalPrecedingWordsCount) {
public TextRange getWordRangeAtCursor(final String sep,
final int additionalPrecedingWordsCount) {
mIC = mParent.getCurrentInputConnection();
if (mIC == null || sep == null) {
return null;
@ -643,7 +548,7 @@ public final class RichInputConnection {
}
}
return new Range(TextUtils.concat(before, after), startIndexInBefore,
return new TextRange(TextUtils.concat(before, after), startIndexInBefore,
before.length() + endIndexInAfter, before.length());
}

116
java/src/com/android/inputmethod/latin/utils/TextRange.java Normal file
View File

@ -0,0 +1,116 @@
/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.inputmethod.latin.utils;
import android.text.Spanned;
import android.text.style.SuggestionSpan;
import java.util.Arrays;
/**
* Represents a range of text, relative to the current cursor position.
*/
public final class TextRange {
private final CharSequence mTextAtCursor;
private final int mWordAtCursorStartIndex;
private final int mWordAtCursorEndIndex;
private final int mCursorIndex;
public final CharSequence mWord;
public int getNumberOfCharsInWordBeforeCursor() {
return mCursorIndex - mWordAtCursorStartIndex;
}
public int getNumberOfCharsInWordAfterCursor() {
return mWordAtCursorEndIndex - mCursorIndex;
}
/**
* Gets the suggestion spans that are put squarely on the word, with the exact start
* and end of the span matching the boundaries of the word.
* @return the list of spans.
*/
public SuggestionSpan[] getSuggestionSpansAtWord() {
if (!(mTextAtCursor instanceof Spanned && mWord instanceof Spanned)) {
return new SuggestionSpan[0];
}
final Spanned text = (Spanned)mTextAtCursor;
// Note: it's fine to pass indices negative or greater than the length of the string
// to the #getSpans() method. The reason we need to get from -1 to +1 is that, the
// spans were cut at the cursor position, and #getSpans(start, end) does not return
// spans that end at `start' or begin at `end'. Consider the following case:
// this| is (The | symbolizes the cursor position
// ---- ---
// In this case, the cursor is in position 4, so the 0~7 span has been split into
// a 0~4 part and a 4~7 part.
// If we called #getSpans(0, 4) in this case, we would only get the part from 0 to 4
// of the span, and not the part from 4 to 7, so we would not realize the span actually
// extends from 0 to 7. But if we call #getSpans(-1, 5) we'll get both the 0~4 and
// the 4~7 spans and we can merge them accordingly.
// Any span starting more than 1 char away from the word boundaries in any direction
// does not touch the word, so we don't need to consider it. That's why requesting
// -1 ~ +1 is enough.
// Of course this is only relevant if the cursor is at one end of the word. If it's
// in the middle, the -1 and +1 are not necessary, but they are harmless.
final SuggestionSpan[] spans = text.getSpans(mWordAtCursorStartIndex - 1,
mWordAtCursorEndIndex + 1, SuggestionSpan.class);
int readIndex = 0;
int writeIndex = 0;
for (; readIndex < spans.length; ++readIndex) {
final SuggestionSpan span = spans[readIndex];
// The span may be null, as we null them when we find duplicates. Cf a few lines
// down.
if (null == span) continue;
// Tentative span start and end. This may be modified later if we realize the
// same span is also applied to other parts of the string.
int spanStart = text.getSpanStart(span);
int spanEnd = text.getSpanEnd(span);
for (int i = readIndex + 1; i < spans.length; ++i) {
if (span.equals(spans[i])) {
// We found the same span somewhere else. Read the new extent of this
// span, and adjust our values accordingly.
spanStart = Math.min(spanStart, text.getSpanStart(spans[i]));
spanEnd = Math.max(spanEnd, text.getSpanEnd(spans[i]));
// ...and mark the span as processed.
spans[i] = null;
}
}
if (spanStart == mWordAtCursorStartIndex && spanEnd == mWordAtCursorEndIndex) {
// If the span does not start and stop here, we ignore it. It probably extends
// past the start or end of the word, as happens in missing space correction
// or EasyEditSpans put by voice input.
spans[writeIndex++] = spans[readIndex];
}
}
return writeIndex == readIndex ? spans : Arrays.copyOfRange(spans, 0, writeIndex);
}
public TextRange(final CharSequence textAtCursor, final int wordAtCursorStartIndex,
final int wordAtCursorEndIndex, final int cursorIndex) {
if (wordAtCursorStartIndex < 0 || cursorIndex < wordAtCursorStartIndex
|| cursorIndex > wordAtCursorEndIndex
|| wordAtCursorEndIndex > textAtCursor.length()) {
throw new IndexOutOfBoundsException();
}
mTextAtCursor = textAtCursor;
mWordAtCursorStartIndex = wordAtCursorStartIndex;
mWordAtCursorEndIndex = wordAtCursorEndIndex;
mCursorIndex = cursorIndex;
mWord = mTextAtCursor.subSequence(mWordAtCursorStartIndex, mWordAtCursorEndIndex);
}
}

4
java/src/com/android/inputmethod/research/ResearchLogger.java
View File

@ -57,11 +57,11 @@ import com.android.inputmethod.latin.Dictionary;
import com.android.inputmethod.latin.LatinIME;
import com.android.inputmethod.latin.R;
import com.android.inputmethod.latin.RichInputConnection;
import com.android.inputmethod.latin.RichInputConnection.Range;
import com.android.inputmethod.latin.Suggest;
import com.android.inputmethod.latin.SuggestedWords;
import com.android.inputmethod.latin.define.ProductionFlag;
import com.android.inputmethod.latin.utils.InputTypeUtils;
import com.android.inputmethod.latin.utils.TextRange;
import com.android.inputmethod.research.MotionEventReader.ReplayData;
import com.android.inputmethod.research.ui.SplashScreen;
@ -1220,7 +1220,7 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
final RichInputConnection connection) {
String word = "";
if (connection != null) {
Range range = connection.getWordRangeAtCursor(WHITESPACE_SEPARATORS, 1);
TextRange range = connection.getWordRangeAtCursor(WHITESPACE_SEPARATORS, 1);
if (range != null) {
word = range.mWord.toString();
}

8
tests/src/com/android/inputmethod/latin/RichInputConnectionAndTextRangeTests.java
View File

@ -16,6 +16,8 @@
package com.android.inputmethod.latin;
import com.android.inputmethod.latin.utils.TextRange;
import android.inputmethodservice.InputMethodService;
import android.os.Parcel;
import android.test.AndroidTestCase;
@ -30,8 +32,6 @@ import android.view.inputmethod.ExtractedTextRequest;
import android.view.inputmethod.InputConnection;
import android.view.inputmethod.InputConnectionWrapper;
import com.android.inputmethod.latin.RichInputConnection.Range;
import java.util.Locale;
@SmallTest
@ -169,7 +169,7 @@ public class RichInputConnectionAndTextRangeTests extends AndroidTestCase {
mockInputMethodService.setInputConnection(new MockConnection("word wo", "rd", et));
et.startOffset = 0;
et.selectionStart = 7;
Range r;
TextRange r;
ic.beginBatchEdit();
// basic case
@ -241,7 +241,7 @@ public class RichInputConnectionAndTextRangeTests extends AndroidTestCase {
text.setSpan(new SuggestionSpan(Locale.ENGLISH, SUGGESTIONS1, 0 /* flags */),
10 /* start */, 16 /* end */, 0 /* flags */);
mockInputMethodService.setInputConnection(new MockConnection(text, cursorPos));
Range r;
TextRange r;
SuggestionSpan[] suggestions;
r = ic.getWordRangeAtCursor(" ", 0);