/*
|
* Copyright (C) 2012 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.keyguard;
|
|
import android.content.Context;
|
import android.graphics.Rect;
|
import android.os.UserHandle;
|
import android.text.Editable;
|
import android.text.InputType;
|
import android.text.TextUtils;
|
import android.text.TextWatcher;
|
import android.text.method.TextKeyListener;
|
import android.util.AttributeSet;
|
import android.view.KeyEvent;
|
import android.view.View;
|
import android.view.animation.AnimationUtils;
|
import android.view.animation.Interpolator;
|
import android.view.inputmethod.EditorInfo;
|
import android.view.inputmethod.InputMethodInfo;
|
import android.view.inputmethod.InputMethodManager;
|
import android.view.inputmethod.InputMethodSubtype;
|
import android.widget.TextView;
|
import android.widget.TextView.OnEditorActionListener;
|
|
import com.android.internal.widget.TextViewInputDisabler;
|
|
import java.util.List;
|
/**
|
* Displays an alphanumeric (latin-1) key entry for the user to enter
|
* an unlock password
|
*/
|
public class KeyguardPasswordView extends KeyguardAbsKeyInputView
|
implements KeyguardSecurityView, OnEditorActionListener, TextWatcher {
|
|
private final boolean mShowImeAtScreenOn;
|
private final int mDisappearYTranslation;
|
|
// A delay constant to be used in a workaround for the situation where InputMethodManagerService
|
// is not switched to the new user yet.
|
// TODO: Remove this by ensuring such a race condition never happens.
|
private static final int DELAY_MILLIS_TO_REEVALUATE_IME_SWITCH_ICON = 500; // 500ms
|
|
InputMethodManager mImm;
|
private TextView mPasswordEntry;
|
private TextViewInputDisabler mPasswordEntryDisabler;
|
private View mSwitchImeButton;
|
|
private Interpolator mLinearOutSlowInInterpolator;
|
private Interpolator mFastOutLinearInInterpolator;
|
|
public KeyguardPasswordView(Context context) {
|
this(context, null);
|
}
|
|
public KeyguardPasswordView(Context context, AttributeSet attrs) {
|
super(context, attrs);
|
mShowImeAtScreenOn = context.getResources().
|
getBoolean(R.bool.kg_show_ime_at_screen_on);
|
mDisappearYTranslation = getResources().getDimensionPixelSize(
|
R.dimen.disappear_y_translation);
|
mLinearOutSlowInInterpolator = AnimationUtils.loadInterpolator(
|
context, android.R.interpolator.linear_out_slow_in);
|
mFastOutLinearInInterpolator = AnimationUtils.loadInterpolator(
|
context, android.R.interpolator.fast_out_linear_in);
|
}
|
|
@Override
|
protected void resetState() {
|
mPasswordEntry.setTextOperationUser(UserHandle.of(KeyguardUpdateMonitor.getCurrentUser()));
|
if (mSecurityMessageDisplay != null) {
|
mSecurityMessageDisplay.setMessage("");
|
}
|
final boolean wasDisabled = mPasswordEntry.isEnabled();
|
// Don't set enabled password entry & showSoftInput when PasswordEntry is invisible or in
|
// pausing stage.
|
if (!mResumed || !mPasswordEntry.isVisibleToUser()) {
|
return;
|
}
|
setPasswordEntryEnabled(true);
|
setPasswordEntryInputEnabled(true);
|
if (wasDisabled) {
|
mImm.showSoftInput(mPasswordEntry, InputMethodManager.SHOW_IMPLICIT);
|
}
|
}
|
|
@Override
|
protected int getPasswordTextViewId() {
|
return R.id.passwordEntry;
|
}
|
|
@Override
|
public boolean needsInput() {
|
return true;
|
}
|
|
@Override
|
public void onResume(final int reason) {
|
super.onResume(reason);
|
|
// Wait a bit to focus the field so the focusable flag on the window is already set then.
|
post(new Runnable() {
|
@Override
|
public void run() {
|
if (isShown() && mPasswordEntry.isEnabled()) {
|
mPasswordEntry.requestFocus();
|
if (reason != KeyguardSecurityView.SCREEN_ON || mShowImeAtScreenOn) {
|
mImm.showSoftInput(mPasswordEntry, InputMethodManager.SHOW_IMPLICIT);
|
}
|
}
|
}
|
});
|
}
|
|
@Override
|
protected int getPromptReasonStringRes(int reason) {
|
switch (reason) {
|
case PROMPT_REASON_RESTART:
|
return R.string.kg_prompt_reason_restart_password;
|
case PROMPT_REASON_TIMEOUT:
|
return R.string.kg_prompt_reason_timeout_password;
|
case PROMPT_REASON_DEVICE_ADMIN:
|
return R.string.kg_prompt_reason_device_admin;
|
case PROMPT_REASON_USER_REQUEST:
|
return R.string.kg_prompt_reason_user_request;
|
case PROMPT_REASON_NONE:
|
return 0;
|
default:
|
return R.string.kg_prompt_reason_timeout_password;
|
}
|
}
|
|
@Override
|
public void onPause() {
|
super.onPause();
|
mImm.hideSoftInputFromWindow(getWindowToken(), 0);
|
}
|
|
private void updateSwitchImeButton() {
|
// If there's more than one IME, enable the IME switcher button
|
final boolean wasVisible = mSwitchImeButton.getVisibility() == View.VISIBLE;
|
final boolean shouldBeVisible = hasMultipleEnabledIMEsOrSubtypes(mImm, false);
|
if (wasVisible != shouldBeVisible) {
|
mSwitchImeButton.setVisibility(shouldBeVisible ? View.VISIBLE : View.GONE);
|
}
|
|
// TODO: Check if we still need this hack.
|
// If no icon is visible, reset the start margin on the password field so the text is
|
// still centered.
|
if (mSwitchImeButton.getVisibility() != View.VISIBLE) {
|
android.view.ViewGroup.LayoutParams params = mPasswordEntry.getLayoutParams();
|
if (params instanceof MarginLayoutParams) {
|
final MarginLayoutParams mlp = (MarginLayoutParams) params;
|
mlp.setMarginStart(0);
|
mPasswordEntry.setLayoutParams(params);
|
}
|
}
|
}
|
|
@Override
|
protected void onFinishInflate() {
|
super.onFinishInflate();
|
|
mImm = (InputMethodManager) getContext().getSystemService(
|
Context.INPUT_METHOD_SERVICE);
|
|
mPasswordEntry = findViewById(getPasswordTextViewId());
|
mPasswordEntry.setTextOperationUser(UserHandle.of(KeyguardUpdateMonitor.getCurrentUser()));
|
mPasswordEntryDisabler = new TextViewInputDisabler(mPasswordEntry);
|
mPasswordEntry.setKeyListener(TextKeyListener.getInstance());
|
mPasswordEntry.setInputType(InputType.TYPE_CLASS_TEXT
|
| InputType.TYPE_TEXT_VARIATION_PASSWORD);
|
mPasswordEntry.setOnEditorActionListener(this);
|
mPasswordEntry.addTextChangedListener(this);
|
|
// Poke the wakelock any time the text is selected or modified
|
mPasswordEntry.setOnClickListener(new OnClickListener() {
|
@Override
|
public void onClick(View v) {
|
mCallback.userActivity();
|
}
|
});
|
|
// Set selected property on so the view can send accessibility events.
|
mPasswordEntry.setSelected(true);
|
|
mSwitchImeButton = findViewById(R.id.switch_ime_button);
|
mSwitchImeButton.setOnClickListener(new OnClickListener() {
|
@Override
|
public void onClick(View v) {
|
mCallback.userActivity(); // Leave the screen on a bit longer
|
// Do not show auxiliary subtypes in password lock screen.
|
mImm.showInputMethodPickerFromSystem(false /* showAuxiliarySubtypes */,
|
getContext().getDisplayId());
|
}
|
});
|
|
View cancelBtn = findViewById(R.id.cancel_button);
|
if (cancelBtn != null) {
|
cancelBtn.setOnClickListener(view -> {
|
mCallback.reset();
|
mCallback.onCancelClicked();
|
});
|
}
|
|
// If there's more than one IME, enable the IME switcher button
|
updateSwitchImeButton();
|
|
// When we the current user is switching, InputMethodManagerService sometimes has not
|
// switched internal state yet here. As a quick workaround, we check the keyboard state
|
// again.
|
// TODO: Remove this workaround by ensuring such a race condition never happens.
|
postDelayed(new Runnable() {
|
@Override
|
public void run() {
|
updateSwitchImeButton();
|
}
|
}, DELAY_MILLIS_TO_REEVALUATE_IME_SWITCH_ICON);
|
}
|
|
@Override
|
protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) {
|
// send focus to the password field
|
return mPasswordEntry.requestFocus(direction, previouslyFocusedRect);
|
}
|
|
@Override
|
protected void resetPasswordText(boolean animate, boolean announce) {
|
mPasswordEntry.setText("");
|
}
|
|
@Override
|
protected byte[] getPasswordText() {
|
return charSequenceToByteArray(mPasswordEntry.getText());
|
}
|
|
@Override
|
protected void setPasswordEntryEnabled(boolean enabled) {
|
mPasswordEntry.setEnabled(enabled);
|
}
|
|
@Override
|
protected void setPasswordEntryInputEnabled(boolean enabled) {
|
mPasswordEntryDisabler.setInputEnabled(enabled);
|
}
|
|
/**
|
* Method adapted from com.android.inputmethod.latin.Utils
|
*
|
* @param imm The input method manager
|
* @param shouldIncludeAuxiliarySubtypes
|
* @return true if we have multiple IMEs to choose from
|
*/
|
private boolean hasMultipleEnabledIMEsOrSubtypes(InputMethodManager imm,
|
final boolean shouldIncludeAuxiliarySubtypes) {
|
final List<InputMethodInfo> enabledImis =
|
imm.getEnabledInputMethodListAsUser(KeyguardUpdateMonitor.getCurrentUser());
|
|
// Number of the filtered IMEs
|
int filteredImisCount = 0;
|
|
for (InputMethodInfo imi : enabledImis) {
|
// We can return true immediately after we find two or more filtered IMEs.
|
if (filteredImisCount > 1) return true;
|
final List<InputMethodSubtype> subtypes =
|
imm.getEnabledInputMethodSubtypeList(imi, true);
|
// IMEs that have no subtypes should be counted.
|
if (subtypes.isEmpty()) {
|
++filteredImisCount;
|
continue;
|
}
|
|
int auxCount = 0;
|
for (InputMethodSubtype subtype : subtypes) {
|
if (subtype.isAuxiliary()) {
|
++auxCount;
|
}
|
}
|
final int nonAuxCount = subtypes.size() - auxCount;
|
|
// IMEs that have one or more non-auxiliary subtypes should be counted.
|
// If shouldIncludeAuxiliarySubtypes is true, IMEs that have two or more auxiliary
|
// subtypes should be counted as well.
|
if (nonAuxCount > 0 || (shouldIncludeAuxiliarySubtypes && auxCount > 1)) {
|
++filteredImisCount;
|
continue;
|
}
|
}
|
|
return filteredImisCount > 1
|
// imm.getEnabledInputMethodSubtypeList(null, false) will return the current IME's enabled
|
// input method subtype (The current IME should be LatinIME.)
|
|| imm.getEnabledInputMethodSubtypeList(null, false).size() > 1;
|
}
|
|
@Override
|
public void showUsabilityHint() {
|
}
|
|
@Override
|
public int getWrongPasswordStringId() {
|
return R.string.kg_wrong_password;
|
}
|
|
@Override
|
public void startAppearAnimation() {
|
setAlpha(0f);
|
setTranslationY(0f);
|
animate()
|
.alpha(1)
|
.withLayer()
|
.setDuration(300)
|
.setInterpolator(mLinearOutSlowInInterpolator);
|
}
|
|
@Override
|
public boolean startDisappearAnimation(Runnable finishRunnable) {
|
animate()
|
.alpha(0f)
|
.translationY(mDisappearYTranslation)
|
.setInterpolator(mFastOutLinearInInterpolator)
|
.setDuration(100)
|
.withEndAction(finishRunnable);
|
return true;
|
}
|
|
@Override
|
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
|
if (mCallback != null) {
|
mCallback.userActivity();
|
}
|
}
|
|
@Override
|
public void onTextChanged(CharSequence s, int start, int before, int count) {
|
}
|
|
@Override
|
public void afterTextChanged(Editable s) {
|
// Poor man's user edit detection, assuming empty text is programmatic and everything else
|
// is from the user.
|
if (!TextUtils.isEmpty(s)) {
|
onUserInput();
|
}
|
}
|
|
@Override
|
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
|
// Check if this was the result of hitting the enter key
|
final boolean isSoftImeEvent = event == null
|
&& (actionId == EditorInfo.IME_NULL
|
|| actionId == EditorInfo.IME_ACTION_DONE
|
|| actionId == EditorInfo.IME_ACTION_NEXT);
|
final boolean isKeyboardEnterKey = event != null
|
&& KeyEvent.isConfirmKey(event.getKeyCode())
|
&& event.getAction() == KeyEvent.ACTION_DOWN;
|
if (isSoftImeEvent || isKeyboardEnterKey) {
|
verifyPasswordAndUnlock();
|
return true;
|
}
|
return false;
|
}
|
|
@Override
|
public CharSequence getTitle() {
|
return getContext().getString(
|
com.android.internal.R.string.keyguard_accessibility_password_unlock);
|
}
|
|
/*
|
* This method avoids creating a new string when getting a byte array from EditView#getText().
|
*/
|
private static byte[] charSequenceToByteArray(CharSequence chars) {
|
if (chars == null) {
|
return null;
|
}
|
byte[] bytes = new byte[chars.length()];
|
for (int i = 0; i < chars.length(); i++) {
|
bytes[i] = (byte) chars.charAt(i);
|
}
|
return bytes;
|
}
|
}
|
