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am 4a71d2c4: Allow to add/remove background color to/from the committed text

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* commit '4a71d2c48021351e10bd61d5ee007533651da627':
  Allow to add/remove background color to/from the committed text
This commit is contained in:
Yohei Yukawa 2014-08-25 03:53:28 +00:00 committed by Android Git Automerger
commit e0d0080308
2 changed files with 97 additions and 4 deletions
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77
java/src/com/android/inputmethod/latin/RichInputConnection.java
View file

@ -16,9 +16,13 @@
package com.android.inputmethod.latin;
import android.graphics.Color;
import android.inputmethodservice.InputMethodService;
import android.os.Build;
import android.text.SpannableStringBuilder;
import android.text.Spanned;
import android.text.TextUtils;
import android.text.style.BackgroundColorSpan;
import android.util.Log;
import android.view.KeyEvent;
import android.view.inputmethod.CompletionInfo;
@ -81,6 +85,18 @@ public final class RichInputConnection {
*/
private final StringBuilder mComposingText = new StringBuilder();
/**
* This variable is a temporary object used in
* {@link #commitTextWithBackgroundColor(CharSequence, int, int)} to avoid object creation.
*/
private SpannableStringBuilder mTempObjectForCommitText = new SpannableStringBuilder();
/**
* This variable is used to track whether the last committed text had the background color or
* not.
* TODO: Omit this flag if possible.
*/
private boolean mLastCommittedTextHasBackgroundColor = false;
private final InputMethodService mParent;
InputConnection mIC;
int mNestLevel;
@ -219,12 +235,37 @@ public final class RichInputConnection {
// it works, but it's wrong and should be fixed.
mCommittedTextBeforeComposingText.append(mComposingText);
mComposingText.setLength(0);
// TODO: Clear this flag in setComposingRegion() and setComposingText() as well if needed.
mLastCommittedTextHasBackgroundColor = false;
if (null != mIC) {
mIC.finishComposingText();
}
}
public void commitText(final CharSequence text, final int i) {
/**
* Synonym of {@code commitTextWithBackgroundColor(text, newCursorPosition, Color.TRANSPARENT}.
* @param text The text to commit. This may include styles.
* See {@link InputConnection#commitText(CharSequence, int)}.
* @param newCursorPosition The new cursor position around the text.
* See {@link InputConnection#commitText(CharSequence, int)}.
*/
public void commitText(final CharSequence text, final int newCursorPosition) {
commitTextWithBackgroundColor(text, newCursorPosition, Color.TRANSPARENT);
}
/**
* Calls {@link InputConnection#commitText(CharSequence, int)} with the given background color.
* @param text The text to commit. This may include styles.
* See {@link InputConnection#commitText(CharSequence, int)}.
* @param newCursorPosition The new cursor position around the text.
* See {@link InputConnection#commitText(CharSequence, int)}.
* @param color The background color to be attached. Set {@link Color#TRANSPARENT} to disable
* the background color. Note that this method specifies {@link BackgroundColorSpan} with
* {@link Spanned#SPAN_COMPOSING} flag, meaning that the background color persists until
* {@link #finishComposingText()} is called.
*/
public void commitTextWithBackgroundColor(final CharSequence text, final int newCursorPosition,
final int color) {
if (DEBUG_BATCH_NESTING) checkBatchEdit();
if (DEBUG_PREVIOUS_TEXT) checkConsistencyForDebug();
mCommittedTextBeforeComposingText.append(text);
@ -234,11 +275,43 @@ public final class RichInputConnection {
mExpectedSelStart += text.length() - mComposingText.length();
mExpectedSelEnd = mExpectedSelStart;
mComposingText.setLength(0);
mLastCommittedTextHasBackgroundColor = false;
if (null != mIC) {
mIC.commitText(text, i);
if (color == Color.TRANSPARENT) {
mIC.commitText(text, newCursorPosition);
} else {
mTempObjectForCommitText.clear();
mTempObjectForCommitText.append(text);
final BackgroundColorSpan backgroundColorSpan = new BackgroundColorSpan(color);
mTempObjectForCommitText.setSpan(backgroundColorSpan, 0, text.length(),
Spanned.SPAN_COMPOSING | Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
mIC.commitText(mTempObjectForCommitText, newCursorPosition);
mLastCommittedTextHasBackgroundColor = true;
}
}
}
/**
* Removes the background color from the highlighted text if necessary. Should be called while
* there is no on-going composing text.
*
* <p>CAVEAT: This method internally calls {@link InputConnection#finishComposingText()}.
* Be careful of any unexpected side effects.</p>
*/
public void removeBackgroundColorFromHighlightedTextIfNecessary() {
// TODO: We haven't yet full tested if we really need to check this flag or not. Omit this
// flag if everything works fine without this condition.
if (!mLastCommittedTextHasBackgroundColor) {
return;
}
if (mComposingText.length() > 0) {
Log.e(TAG, "clearSpansWithComposingFlags should be called when composing text is " +
"empty. mComposingText=" + mComposingText);
return;
}
finishComposingText();
}
public CharSequence getSelectedText(final int flags) {
return (null == mIC) ? null : mIC.getSelectedText(flags);
}

24
java/src/com/android/inputmethod/latin/inputlogic/InputLogic.java
View file

@ -16,6 +16,7 @@
package com.android.inputmethod.latin.inputlogic;
import android.graphics.Color;
import android.os.SystemClock;
import android.text.SpannableString;
import android.text.TextUtils;
@ -1994,7 +1995,9 @@ public final class InputLogic {
}
/**
* Commits the chosen word to the text field and saves it for later retrieval.
* Commits the chosen word to the text field and saves it for later retrieval. This is a
* synonym of {@code commitChosenWordWithBackgroundColor(settingsValues, chosenWord,
* commitType, separatorString, Color.TRANSPARENT}.
*
* @param settingsValues the current values of the settings.
* @param chosenWord the word we want to commit.
@ -2003,6 +2006,23 @@ public final class InputLogic {
*/
private void commitChosenWord(final SettingsValues settingsValues, final String chosenWord,
final int commitType, final String separatorString) {
commitChosenWordWithBackgroundColor(settingsValues, chosenWord, commitType, separatorString,
Color.TRANSPARENT);
}
/**
* Commits the chosen word to the text field and saves it for later retrieval.
*
* @param settingsValues the current values of the settings.
* @param chosenWord the word we want to commit.
* @param commitType the type of the commit, as one of LastComposedWord.COMMIT_TYPE_*
* @param separatorString the separator that's causing the commit, or NOT_A_SEPARATOR if none.
* @param backgroundColor the background color to be specified with the committed text. Pass
* {@link Color#TRANSPARENT} to not specify the background color.
*/
private void commitChosenWordWithBackgroundColor(final SettingsValues settingsValues,
final String chosenWord, final int commitType, final String separatorString,
final int backgroundColor) {
final SuggestedWords suggestedWords = mSuggestedWords;
final CharSequence chosenWordWithSuggestions =
SuggestionSpanUtils.getTextWithSuggestionSpan(mLatinIME, chosenWord,
@ -2012,7 +2032,7 @@ public final class InputLogic {
// information from the 1st previous word.
final PrevWordsInfo prevWordsInfo = mConnection.getPrevWordsInfoFromNthPreviousWord(
settingsValues.mSpacingAndPunctuations, mWordComposer.isComposingWord() ? 2 : 1);
mConnection.commitText(chosenWordWithSuggestions, 1);
mConnection.commitTextWithBackgroundColor(chosenWordWithSuggestions, 1, backgroundColor);
// Add the word to the user history dictionary
performAdditionToUserHistoryDictionary(settingsValues, chosenWord, prevWordsInfo);
// TODO: figure out here if this is an auto-correct or if the best word is actually