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Merge "[IL121] Introduce InputTransaction"

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This commit is contained in:
Jean Chalard 2014-03-05 08:41:29 +00:00 committed by Android (Google) Code Review
commit 4f6ce0df0b
2 changed files with 97 additions and 29 deletions
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48
java/src/com/android/inputmethod/event/InputTransaction.java Normal file
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@ -0,0 +1,48 @@
/*
* Copyright (C) 2014 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.event;
/**
* An object encapsulating a single transaction for input.
*/
public class InputTransaction {
// UPDATE_LATER is stronger than UPDATE_NOW. The reason for this is, if we have to update later,
// it's because something will change that we can't evaluate now, which means that even if we
// re-evaluate now we'll have to do it again later. The only case where that wouldn't apply
// would be if we needed to update now to find out the new state right away, but then we
// can't do it with this deferred mechanism anyway.
public static final int SHIFT_NO_UPDATE = 0;
public static final int SHIFT_UPDATE_NOW = 1;
public static final int SHIFT_UPDATE_LATER = 2;
// Initial conditions
public final int mShiftState;
// Outputs
private int mRequiredShiftUpdate = SHIFT_NO_UPDATE;
public InputTransaction(final int shiftState) {
mShiftState = shiftState;
}
public void requireShiftUpdate(final int updateType) {
mRequiredShiftUpdate = Math.max(mRequiredShiftUpdate, updateType);
}
public int getRequiredShiftUpdate() {
return mRequiredShiftUpdate;
}
}

78
java/src/com/android/inputmethod/latin/inputlogic/InputLogic.java
View File

@ -23,12 +23,12 @@ import android.text.style.SuggestionSpan;
import android.util.Log;
import android.view.KeyCharacterMap;
import android.view.KeyEvent;
import android.view.inputmethod.CompletionInfo;
import android.view.inputmethod.CorrectionInfo;
import android.view.inputmethod.EditorInfo;
import com.android.inputmethod.compat.SuggestionSpanUtils;
import com.android.inputmethod.event.EventInterpreter;
import com.android.inputmethod.event.InputTransaction;
import com.android.inputmethod.keyboard.KeyboardSwitcher;
import com.android.inputmethod.latin.Constants;
import com.android.inputmethod.latin.Dictionary;
@ -365,6 +365,8 @@ public final class InputLogic {
ResearchLogger.latinIME_onCodeInput(code, x, y);
}
final long when = SystemClock.uptimeMillis();
final InputTransaction inputTransaction = new InputTransaction(
getActualCapsMode(settingsValues, keyboardSwitcher.getKeyboardShiftMode()));
if (code != Constants.CODE_DELETE
|| when > mLastKeyTime + Constants.LONG_PRESS_MILLISECONDS) {
mDeleteCount = 0;
@ -389,12 +391,12 @@ public final class InputLogic {
boolean didAutoCorrect = false;
switch (code) {
case Constants.CODE_DELETE:
handleBackspace(settingsValues, spaceState, handler, keyboardSwitcher);
handleBackspace(settingsValues, spaceState, inputTransaction, handler);
LatinImeLogger.logOnDelete(x, y);
break;
case Constants.CODE_SHIFT:
performRecapitalization(settingsValues);
keyboardSwitcher.updateShiftState();
inputTransaction.requireShiftUpdate(InputTransaction.SHIFT_UPDATE_NOW);
break;
case Constants.CODE_CAPSLOCK:
// Note: Changing keyboard to shift lock state is handled in
@ -449,12 +451,12 @@ public final class InputLogic {
// No action label, and the action from imeOptions is NONE: this is a regular
// enter key that should input a carriage return.
didAutoCorrect = handleNonSpecialCharacter(settingsValues, Constants.CODE_ENTER,
x, y, spaceState, keyboardSwitcher, handler);
x, y, spaceState, inputTransaction, handler);
}
break;
case Constants.CODE_SHIFT_ENTER:
didAutoCorrect = handleNonSpecialCharacter(settingsValues, Constants.CODE_ENTER,
x, y, spaceState, keyboardSwitcher, handler);
x, y, spaceState, inputTransaction, handler);
break;
case Constants.CODE_ALPHA_FROM_EMOJI:
// Note: Switching back from Emoji keyboard to the main keyboard is being handled in
@ -462,7 +464,7 @@ public final class InputLogic {
break;
default:
didAutoCorrect = handleNonSpecialCharacter(settingsValues,
code, x, y, spaceState, keyboardSwitcher, handler);
code, x, y, spaceState, inputTransaction, handler);
break;
}
// Reset after any single keystroke, except shift, capslock, and symbol-shift
@ -474,6 +476,15 @@ public final class InputLogic {
mEnteredText = null;
}
mConnection.endBatchEdit();
switch (inputTransaction.getRequiredShiftUpdate()) {
case InputTransaction.SHIFT_UPDATE_LATER:
mLatinIME.mHandler.postUpdateShiftState();
break;
case InputTransaction.SHIFT_UPDATE_NOW:
keyboardSwitcher.updateShiftState();
break;
default: // SHIFT_NO_UPDATE
}
}
public void onStartBatchInput(final SettingsValues settingsValues,
@ -622,18 +633,20 @@ public final class InputLogic {
* @param x the x-coordinate of the key press, or Contants.NOT_A_COORDINATE if not applicable.
* @param y the y-coordinate of the key press, or Contants.NOT_A_COORDINATE if not applicable.
* @param spaceState the space state at start of the batch input.
* @param inputTransaction The transaction in progress.
* @return whether this caused an auto-correction to happen.
*/
private boolean handleNonSpecialCharacter(final SettingsValues settingsValues,
final int codePoint, final int x, final int y, final int spaceState,
// TODO: remove these arguments
final KeyboardSwitcher keyboardSwitcher, final LatinIME.UIHandler handler) {
final InputTransaction inputTransaction,
// TODO: remove this argument
final LatinIME.UIHandler handler) {
mSpaceState = SpaceState.NONE;
final boolean didAutoCorrect;
if (settingsValues.isWordSeparator(codePoint)
|| Character.getType(codePoint) == Character.OTHER_SYMBOL) {
didAutoCorrect = handleSeparator(settingsValues, codePoint,
Constants.SUGGESTION_STRIP_COORDINATE == x, spaceState, keyboardSwitcher,
Constants.SUGGESTION_STRIP_COORDINATE == x, spaceState, inputTransaction,
handler);
if (settingsValues.mIsInternal) {
LatinImeLoggerUtils.onSeparator((char)codePoint, x, y);
@ -657,7 +670,7 @@ public final class InputLogic {
}
}
handleNonSeparator(settingsValues, codePoint, x, y, spaceState,
keyboardSwitcher, handler);
inputTransaction, handler);
}
return didAutoCorrect;
}
@ -669,11 +682,13 @@ public final class InputLogic {
* @param x the x-coordinate of the key press, or Contants.NOT_A_COORDINATE if not applicable.
* @param y the y-coordinate of the key press, or Contants.NOT_A_COORDINATE if not applicable.
* @param spaceState the space state at start of the batch input.
* @param inputTransaction The transaction in progress.
*/
private void handleNonSeparator(final SettingsValues settingsValues,
final int codePoint, final int x, final int y, final int spaceState,
// TODO: Remove these arguments
final KeyboardSwitcher keyboardSwitcher, final LatinIME.UIHandler handler) {
final InputTransaction inputTransaction,
// TODO: Remove this argument
final LatinIME.UIHandler handler) {
// TODO: refactor this method to stop flipping isComposingWord around all the time, and
// make it shorter (possibly cut into several pieces). Also factor handleNonSpecialCharacter
// which has the same name as other handle* methods but is not the same.
@ -729,8 +744,7 @@ public final class InputLogic {
// We pass 1 to getPreviousWordForSuggestion because we were not composing a word
// yet, so the word we want is the 1st word before the cursor.
mWordComposer.setCapitalizedModeAndPreviousWordAtStartComposingTime(
getActualCapsMode(settingsValues, keyboardSwitcher.getKeyboardShiftMode()),
getNthPreviousWordForSuggestion(
inputTransaction.mShiftState, getNthPreviousWordForSuggestion(
settingsValues.mSpacingAndPunctuations, 1 /* nthPreviousWord */));
}
mConnection.setComposingText(getTextWithUnderline(
@ -742,7 +756,7 @@ public final class InputLogic {
sendKeyCodePoint(settingsValues, codePoint);
if (swapWeakSpace) {
swapSwapperAndSpace(keyboardSwitcher);
swapSwapperAndSpace(inputTransaction);
mSpaceState = SpaceState.WEAK;
}
// In case the "add to dictionary" hint was still displayed.
@ -760,12 +774,14 @@ public final class InputLogic {
* @param codePoint the code point associated with the key.
* @param isFromSuggestionStrip whether this code point comes from the suggestion strip.
* @param spaceState the space state at start of the batch input.
* @param inputTransaction The transaction in progress.
* @return whether this caused an auto-correction to happen.
*/
private boolean handleSeparator(final SettingsValues settingsValues,
final int codePoint, final boolean isFromSuggestionStrip, final int spaceState,
// TODO: remove these arguments
final KeyboardSwitcher keyboardSwitcher, final LatinIME.UIHandler handler) {
final InputTransaction inputTransaction,
// TODO: remove this argument
final LatinIME.UIHandler handler) {
boolean didAutoCorrect = false;
// We avoid sending spaces in languages without spaces if we were composing.
final boolean shouldAvoidSendingCode = Constants.CODE_SPACE == codePoint
@ -820,7 +836,7 @@ public final class InputLogic {
if (Constants.CODE_SPACE == codePoint) {
if (settingsValues.isSuggestionsRequested()) {
if (maybeDoubleSpacePeriod(settingsValues, handler)) {
keyboardSwitcher.updateShiftState();
inputTransaction.requireShiftUpdate(InputTransaction.SHIFT_UPDATE_NOW);
mSpaceState = SpaceState.DOUBLE;
} else if (!mSuggestedWords.isPunctuationSuggestions()) {
mSpaceState = SpaceState.WEAK;
@ -831,7 +847,7 @@ public final class InputLogic {
handler.postUpdateSuggestionStrip();
} else {
if (swapWeakSpace) {
swapSwapperAndSpace(keyboardSwitcher);
swapSwapperAndSpace(inputTransaction);
mSpaceState = SpaceState.SWAP_PUNCTUATION;
} else if ((SpaceState.PHANTOM == spaceState
&& settingsValues.isUsuallyFollowedBySpace(codePoint))
@ -856,7 +872,7 @@ public final class InputLogic {
mSuggestionStripViewAccessor.setNeutralSuggestionStrip();
}
keyboardSwitcher.updateShiftState();
inputTransaction.requireShiftUpdate(InputTransaction.SHIFT_UPDATE_NOW);
return didAutoCorrect;
}
@ -864,17 +880,19 @@ public final class InputLogic {
* Handle a press on the backspace key.
* @param settingsValues The current settings values.
* @param spaceState The space state at start of this batch edit.
* @param inputTransaction The transaction in progress.
*/
private void handleBackspace(final SettingsValues settingsValues, final int spaceState,
// TODO: remove these arguments
final LatinIME.UIHandler handler, final KeyboardSwitcher keyboardSwitcher) {
final InputTransaction inputTransaction,
// TODO: remove this argument
final LatinIME.UIHandler handler) {
mSpaceState = SpaceState.NONE;
mDeleteCount++;
// In many cases, we may have to put the keyboard in auto-shift state again. However
// we want to wait a few milliseconds before doing it to avoid the keyboard flashing
// during key repeat.
handler.postUpdateShiftState();
inputTransaction.requireShiftUpdate(InputTransaction.SHIFT_UPDATE_LATER);
if (mWordComposer.isCursorFrontOrMiddleOfComposingWord()) {
// If we are in the middle of a recorrection, we need to commit the recorrection
@ -900,7 +918,7 @@ public final class InputLogic {
if (!mWordComposer.isComposingWord()) {
// If we just removed the last character, auto-caps mode may have changed so we
// need to re-evaluate.
keyboardSwitcher.updateShiftState();
inputTransaction.requireShiftUpdate(InputTransaction.SHIFT_UPDATE_NOW);
}
} else {
if (mLastComposedWord.canRevertCommit()) {
@ -1012,7 +1030,7 @@ public final class InputLogic {
true /* includeResumedWordInSuggestions */);
}
// We just removed at least one character. We need to update the auto-caps state.
keyboardSwitcher.updateShiftState();
inputTransaction.requireShiftUpdate(InputTransaction.SHIFT_UPDATE_NOW);
}
}
@ -1028,9 +1046,9 @@ public final class InputLogic {
*
* This method will check that there are two characters before the cursor and that the first
* one is a space before it does the actual swapping.
* @param inputTransaction The transaction in progress.
*/
// TODO: Remove this argument
private void swapSwapperAndSpace(final KeyboardSwitcher keyboardSwitcher) {
private void swapSwapperAndSpace(final InputTransaction inputTransaction) {
final CharSequence lastTwo = mConnection.getTextBeforeCursor(2, 0);
// It is guaranteed lastTwo.charAt(1) is a swapper - else this method is not called.
if (lastTwo != null && lastTwo.length() == 2 && lastTwo.charAt(0) == Constants.CODE_SPACE) {
@ -1040,7 +1058,7 @@ public final class InputLogic {
if (ProductionFlag.USES_DEVELOPMENT_ONLY_DIAGNOSTICS) {
ResearchLogger.latinIME_swapSwapperAndSpace(lastTwo, text);
}
keyboardSwitcher.updateShiftState();
inputTransaction.requireShiftUpdate(InputTransaction.SHIFT_UPDATE_NOW);
}
}
@ -1476,7 +1494,9 @@ public final class InputLogic {
*/
private int getActualCapsMode(final SettingsValues settingsValues,
final int keyboardShiftMode) {
if (keyboardShiftMode != WordComposer.CAPS_MODE_AUTO_SHIFTED) return keyboardShiftMode;
if (keyboardShiftMode != WordComposer.CAPS_MODE_AUTO_SHIFTED) {
return keyboardShiftMode;
}
final int auto = getCurrentAutoCapsState(settingsValues);
if (0 != (auto & TextUtils.CAP_MODE_CHARACTERS)) {
return WordComposer.CAPS_MODE_AUTO_SHIFT_LOCKED;