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Refactor text range to be able to get spans larger than the word

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This changes how the Range class stores its data, but not its
functionality. It also improves encapsulation a bit.

Bug: 8839763
Bug: 8862327
Change-Id: I5bd583b3fc96a99b93a2632882d8fd587c03ab76
This commit is contained in:
Jean Chalard 2013-06-20 18:58:58 +09:00
parent 564ad4927c
commit e8c4b99e56
2 changed files with 34 additions and 26 deletions
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17
java/src/com/android/inputmethod/latin/LatinIME.java
View File

@ -2495,11 +2495,13 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
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
// longer than what the entire text is supposed to be, the safe thing to do is bail out.
if (range.mCharsBefore > mLastSelectionStart) return;
final int numberOfCharsInWordBeforeCursor = range.getNumberOfCharsInWordBeforeCursor();
if (numberOfCharsInWordBeforeCursor > mLastSelectionStart) return;
final ArrayList<SuggestedWordInfo> suggestions = CollectionUtils.newArrayList();
final String typedWord = range.mWord.toString();
if (range.mWord instanceof SpannableString) {
final SpannableString spannableString = (SpannableString)range.mWord;
final CharSequence word = range.mWord;
final String typedWord = word.toString();
if (word instanceof SpannableString) {
final SpannableString spannableString = (SpannableString)word;
int i = 0;
for (Object object : spannableString.getSpans(0, spannableString.length(),
SuggestionSpan.class)) {
@ -2515,9 +2517,10 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
}
}
mWordComposer.setComposingWord(typedWord, mKeyboardSwitcher.getKeyboard());
mWordComposer.setCursorPositionWithinWord(range.mCharsBefore);
mConnection.setComposingRegion(mLastSelectionStart - range.mCharsBefore,
mLastSelectionEnd + range.mCharsAfter);
mWordComposer.setCursorPositionWithinWord(numberOfCharsInWordBeforeCursor);
mConnection.setComposingRegion(
mLastSelectionStart - numberOfCharsInWordBeforeCursor,
mLastSelectionEnd + range.getNumberOfCharsInWordAfterCursor());
final SuggestedWords suggestedWords;
if (suggestions.isEmpty()) {
// We come here if there weren't any suggestion spans on this word. We will try to

43
java/src/com/android/inputmethod/latin/RichInputConnection.java
View File

@ -17,7 +17,6 @@
package com.android.inputmethod.latin;
import android.inputmethodservice.InputMethodService;
import android.text.SpannableString;
import android.text.TextUtils;
import android.util.Log;
import android.view.KeyEvent;
@ -441,25 +440,33 @@ public final class RichInputConnection {
* Represents a range of text, relative to the current cursor position.
*/
public static final class Range {
/** Characters before selection start */
public final int mCharsBefore;
private final CharSequence mTextAtCursor;
private final int mWordAtCursorStartIndex;
private final int mWordAtCursorEndIndex;
private final int mCursorIndex;
/**
* Characters after selection start, including one trailing word
* separator.
*/
public final int mCharsAfter;
/** The actual characters that make up a word */
public final CharSequence mWord;
public Range(int charsBefore, int charsAfter, CharSequence word) {
if (charsBefore < 0 || charsAfter < 0) {
public int getNumberOfCharsInWordBeforeCursor() {
return mCursorIndex - mWordAtCursorStartIndex;
}
public int getNumberOfCharsInWordAfterCursor() {
return mWordAtCursorEndIndex - mCursorIndex;
}
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();
}
this.mCharsBefore = charsBefore;
this.mCharsAfter = charsAfter;
this.mWord = word;
mTextAtCursor = textAtCursor;
mWordAtCursorStartIndex = wordAtCursorStartIndex;
mWordAtCursorEndIndex = wordAtCursorEndIndex;
mCursorIndex = cursorIndex;
mWord = mTextAtCursor.subSequence(mWordAtCursorStartIndex, mWordAtCursorEndIndex);
}
}
@ -571,10 +578,8 @@ public final class RichInputConnection {
}
}
final SpannableString word = new SpannableString(TextUtils.concat(
before.subSequence(startIndexInBefore, before.length()),
after.subSequence(0, endIndexInAfter)));
return new Range(before.length() - startIndexInBefore, endIndexInAfter, word);
return new Range(TextUtils.concat(before, after), startIndexInBefore,
before.length() + endIndexInAfter, before.length());
}
public boolean isCursorTouchingWord(final SettingsValues settingsValues) {