Selim Cinek | 4e8b9ed | 2014-06-20 16:37:04 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2014 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License |
| 15 | */ |
| 16 | |
| 17 | package com.android.keyguard; |
| 18 | |
| 19 | import android.animation.Animator; |
| 20 | import android.animation.AnimatorListenerAdapter; |
| 21 | import android.animation.AnimatorSet; |
| 22 | import android.animation.ValueAnimator; |
| 23 | import android.content.Context; |
| 24 | import android.content.res.TypedArray; |
| 25 | import android.graphics.Canvas; |
Lucas Dupin | 987f193 | 2017-05-13 21:02:52 -0700 | [diff] [blame] | 26 | import android.graphics.Color; |
Selim Cinek | 4e8b9ed | 2014-06-20 16:37:04 -0700 | [diff] [blame] | 27 | import android.graphics.Paint; |
| 28 | import android.graphics.Rect; |
| 29 | import android.graphics.Typeface; |
| 30 | import android.os.PowerManager; |
| 31 | import android.os.SystemClock; |
| 32 | import android.provider.Settings; |
Adrian Roos | a48caee | 2015-01-15 19:57:51 +0100 | [diff] [blame] | 33 | import android.text.InputType; |
Phil Weaver | c355c7a | 2017-12-20 10:54:13 -0800 | [diff] [blame] | 34 | import android.text.TextUtils; |
Selim Cinek | 4e8b9ed | 2014-06-20 16:37:04 -0700 | [diff] [blame] | 35 | import android.util.AttributeSet; |
Evan Rosky | 9042750 | 2016-04-01 16:04:23 -0700 | [diff] [blame] | 36 | import android.view.Gravity; |
Selim Cinek | 4e8b9ed | 2014-06-20 16:37:04 -0700 | [diff] [blame] | 37 | import android.view.View; |
Adrian Roos | a48caee | 2015-01-15 19:57:51 +0100 | [diff] [blame] | 38 | import android.view.accessibility.AccessibilityEvent; |
| 39 | import android.view.accessibility.AccessibilityManager; |
| 40 | import android.view.accessibility.AccessibilityNodeInfo; |
Selim Cinek | 4e8b9ed | 2014-06-20 16:37:04 -0700 | [diff] [blame] | 41 | import android.view.animation.AnimationUtils; |
| 42 | import android.view.animation.Interpolator; |
Phil Weaver | 385912e | 2017-02-10 10:06:56 -0800 | [diff] [blame] | 43 | import android.widget.EditText; |
Selim Cinek | 4e8b9ed | 2014-06-20 16:37:04 -0700 | [diff] [blame] | 44 | |
| 45 | import java.util.ArrayList; |
| 46 | import java.util.Stack; |
| 47 | |
| 48 | /** |
| 49 | * A View similar to a textView which contains password text and can animate when the text is |
| 50 | * changed |
| 51 | */ |
| 52 | public class PasswordTextView extends View { |
| 53 | |
| 54 | private static final float DOT_OVERSHOOT_FACTOR = 1.5f; |
| 55 | private static final long DOT_APPEAR_DURATION_OVERSHOOT = 320; |
| 56 | private static final long APPEAR_DURATION = 160; |
| 57 | private static final long DISAPPEAR_DURATION = 160; |
| 58 | private static final long RESET_DELAY_PER_ELEMENT = 40; |
| 59 | private static final long RESET_MAX_DELAY = 200; |
| 60 | |
| 61 | /** |
| 62 | * The overlap between the text disappearing and the dot appearing animation |
| 63 | */ |
| 64 | private static final long DOT_APPEAR_TEXT_DISAPPEAR_OVERLAP_DURATION = 130; |
| 65 | |
| 66 | /** |
| 67 | * The duration the text needs to stay there at least before it can morph into a dot |
| 68 | */ |
| 69 | private static final long TEXT_REST_DURATION_AFTER_APPEAR = 100; |
| 70 | |
| 71 | /** |
| 72 | * The duration the text should be visible, starting with the appear animation |
| 73 | */ |
| 74 | private static final long TEXT_VISIBILITY_DURATION = 1300; |
| 75 | |
| 76 | /** |
| 77 | * The position in time from [0,1] where the overshoot should be finished and the settle back |
| 78 | * animation of the dot should start |
| 79 | */ |
| 80 | private static final float OVERSHOOT_TIME_POSITION = 0.5f; |
| 81 | |
Phil Weaver | c355c7a | 2017-12-20 10:54:13 -0800 | [diff] [blame] | 82 | private static char DOT = '\u2022'; |
| 83 | |
Selim Cinek | 4e8b9ed | 2014-06-20 16:37:04 -0700 | [diff] [blame] | 84 | /** |
| 85 | * The raw text size, will be multiplied by the scaled density when drawn |
| 86 | */ |
| 87 | private final int mTextHeightRaw; |
Evan Rosky | 9042750 | 2016-04-01 16:04:23 -0700 | [diff] [blame] | 88 | private final int mGravity; |
Selim Cinek | 4e8b9ed | 2014-06-20 16:37:04 -0700 | [diff] [blame] | 89 | private ArrayList<CharState> mTextChars = new ArrayList<>(); |
| 90 | private String mText = ""; |
| 91 | private Stack<CharState> mCharPool = new Stack<>(); |
| 92 | private int mDotSize; |
| 93 | private PowerManager mPM; |
| 94 | private int mCharPadding; |
| 95 | private final Paint mDrawPaint = new Paint(); |
| 96 | private Interpolator mAppearInterpolator; |
| 97 | private Interpolator mDisappearInterpolator; |
| 98 | private Interpolator mFastOutSlowInInterpolator; |
| 99 | private boolean mShowPassword; |
Xiyuan Xia | 09eb033 | 2015-05-13 15:29:42 -0700 | [diff] [blame] | 100 | private UserActivityListener mUserActivityListener; |
| 101 | |
| 102 | public interface UserActivityListener { |
| 103 | void onUserActivity(); |
| 104 | } |
Selim Cinek | 4e8b9ed | 2014-06-20 16:37:04 -0700 | [diff] [blame] | 105 | |
| 106 | public PasswordTextView(Context context) { |
| 107 | this(context, null); |
| 108 | } |
| 109 | |
| 110 | public PasswordTextView(Context context, AttributeSet attrs) { |
| 111 | this(context, attrs, 0); |
| 112 | } |
| 113 | |
| 114 | public PasswordTextView(Context context, AttributeSet attrs, int defStyleAttr) { |
| 115 | this(context, attrs, defStyleAttr, 0); |
| 116 | } |
| 117 | |
| 118 | public PasswordTextView(Context context, AttributeSet attrs, int defStyleAttr, |
| 119 | int defStyleRes) { |
| 120 | super(context, attrs, defStyleAttr, defStyleRes); |
| 121 | setFocusableInTouchMode(true); |
| 122 | setFocusable(true); |
| 123 | TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.PasswordTextView); |
| 124 | try { |
| 125 | mTextHeightRaw = a.getInt(R.styleable.PasswordTextView_scaledTextSize, 0); |
Evan Rosky | 9042750 | 2016-04-01 16:04:23 -0700 | [diff] [blame] | 126 | mGravity = a.getInt(R.styleable.PasswordTextView_android_gravity, Gravity.CENTER); |
| 127 | mDotSize = a.getDimensionPixelSize(R.styleable.PasswordTextView_dotSize, |
| 128 | getContext().getResources().getDimensionPixelSize(R.dimen.password_dot_size)); |
| 129 | mCharPadding = a.getDimensionPixelSize(R.styleable.PasswordTextView_charPadding, |
| 130 | getContext().getResources().getDimensionPixelSize( |
| 131 | R.dimen.password_char_padding)); |
Lucas Dupin | 987f193 | 2017-05-13 21:02:52 -0700 | [diff] [blame] | 132 | int textColor = a.getColor(R.styleable.PasswordTextView_android_textColor, Color.WHITE); |
| 133 | mDrawPaint.setColor(textColor); |
Selim Cinek | 4e8b9ed | 2014-06-20 16:37:04 -0700 | [diff] [blame] | 134 | } finally { |
| 135 | a.recycle(); |
| 136 | } |
| 137 | mDrawPaint.setFlags(Paint.SUBPIXEL_TEXT_FLAG | Paint.ANTI_ALIAS_FLAG); |
| 138 | mDrawPaint.setTextAlign(Paint.Align.CENTER); |
Andrew Sapperstein | fec8092 | 2017-06-13 18:36:28 -0700 | [diff] [blame] | 139 | mDrawPaint.setTypeface(Typeface.create( |
Fabian Kozynski | 8a7a334 | 2018-12-13 17:11:57 -0500 | [diff] [blame] | 140 | context.getString(com.android.internal.R.string.config_headlineFontFamily), |
Andrew Sapperstein | fec8092 | 2017-06-13 18:36:28 -0700 | [diff] [blame] | 141 | 0)); |
Selim Cinek | 4e8b9ed | 2014-06-20 16:37:04 -0700 | [diff] [blame] | 142 | mShowPassword = Settings.System.getInt(mContext.getContentResolver(), |
| 143 | Settings.System.TEXT_SHOW_PASSWORD, 1) == 1; |
| 144 | mAppearInterpolator = AnimationUtils.loadInterpolator(mContext, |
| 145 | android.R.interpolator.linear_out_slow_in); |
| 146 | mDisappearInterpolator = AnimationUtils.loadInterpolator(mContext, |
| 147 | android.R.interpolator.fast_out_linear_in); |
| 148 | mFastOutSlowInInterpolator = AnimationUtils.loadInterpolator(mContext, |
| 149 | android.R.interpolator.fast_out_slow_in); |
| 150 | mPM = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE); |
| 151 | } |
| 152 | |
| 153 | @Override |
| 154 | protected void onDraw(Canvas canvas) { |
| 155 | float totalDrawingWidth = getDrawingWidth(); |
Evan Rosky | 9042750 | 2016-04-01 16:04:23 -0700 | [diff] [blame] | 156 | float currentDrawPosition; |
Evan Rosky | 22d1201 | 2016-04-07 14:17:13 -0700 | [diff] [blame] | 157 | if ((mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) == Gravity.LEFT) { |
| 158 | if ((mGravity & Gravity.RELATIVE_LAYOUT_DIRECTION) != 0 |
| 159 | && getLayoutDirection() == LAYOUT_DIRECTION_RTL) { |
Evan Rosky | 9042750 | 2016-04-01 16:04:23 -0700 | [diff] [blame] | 160 | currentDrawPosition = getWidth() - getPaddingRight() - totalDrawingWidth; |
| 161 | } else { |
| 162 | currentDrawPosition = getPaddingLeft(); |
| 163 | } |
| 164 | } else { |
| 165 | currentDrawPosition = getWidth() / 2 - totalDrawingWidth / 2; |
| 166 | } |
Selim Cinek | 4e8b9ed | 2014-06-20 16:37:04 -0700 | [diff] [blame] | 167 | int length = mTextChars.size(); |
| 168 | Rect bounds = getCharBounds(); |
| 169 | int charHeight = (bounds.bottom - bounds.top); |
Evan Rosky | 9042750 | 2016-04-01 16:04:23 -0700 | [diff] [blame] | 170 | float yPosition = |
| 171 | (getHeight() - getPaddingBottom() - getPaddingTop()) / 2 + getPaddingTop(); |
| 172 | canvas.clipRect(getPaddingLeft(), getPaddingTop(), |
Evan Rosky | 22d1201 | 2016-04-07 14:17:13 -0700 | [diff] [blame] | 173 | getWidth() - getPaddingRight(), getHeight() - getPaddingBottom()); |
Selim Cinek | 4e8b9ed | 2014-06-20 16:37:04 -0700 | [diff] [blame] | 174 | float charLength = bounds.right - bounds.left; |
| 175 | for (int i = 0; i < length; i++) { |
| 176 | CharState charState = mTextChars.get(i); |
| 177 | float charWidth = charState.draw(canvas, currentDrawPosition, charHeight, yPosition, |
| 178 | charLength); |
| 179 | currentDrawPosition += charWidth; |
| 180 | } |
| 181 | } |
| 182 | |
Selim Cinek | 6380482 | 2014-09-10 16:39:01 +0200 | [diff] [blame] | 183 | @Override |
| 184 | public boolean hasOverlappingRendering() { |
| 185 | return false; |
| 186 | } |
| 187 | |
Selim Cinek | 4e8b9ed | 2014-06-20 16:37:04 -0700 | [diff] [blame] | 188 | private Rect getCharBounds() { |
| 189 | float textHeight = mTextHeightRaw * getResources().getDisplayMetrics().scaledDensity; |
| 190 | mDrawPaint.setTextSize(textHeight); |
| 191 | Rect bounds = new Rect(); |
| 192 | mDrawPaint.getTextBounds("0", 0, 1, bounds); |
| 193 | return bounds; |
| 194 | } |
| 195 | |
| 196 | private float getDrawingWidth() { |
| 197 | int width = 0; |
| 198 | int length = mTextChars.size(); |
| 199 | Rect bounds = getCharBounds(); |
| 200 | int charLength = bounds.right - bounds.left; |
| 201 | for (int i = 0; i < length; i++) { |
| 202 | CharState charState = mTextChars.get(i); |
| 203 | if (i != 0) { |
| 204 | width += mCharPadding * charState.currentWidthFactor; |
| 205 | } |
| 206 | width += charLength * charState.currentWidthFactor; |
| 207 | } |
| 208 | return width; |
| 209 | } |
| 210 | |
| 211 | |
| 212 | public void append(char c) { |
| 213 | int visibleChars = mTextChars.size(); |
Phil Weaver | c355c7a | 2017-12-20 10:54:13 -0800 | [diff] [blame] | 214 | CharSequence textbefore = getTransformedText(); |
Selim Cinek | 4e8b9ed | 2014-06-20 16:37:04 -0700 | [diff] [blame] | 215 | mText = mText + c; |
| 216 | int newLength = mText.length(); |
| 217 | CharState charState; |
| 218 | if (newLength > visibleChars) { |
| 219 | charState = obtainCharState(c); |
| 220 | mTextChars.add(charState); |
| 221 | } else { |
| 222 | charState = mTextChars.get(newLength - 1); |
| 223 | charState.whichChar = c; |
| 224 | } |
| 225 | charState.startAppearAnimation(); |
| 226 | |
| 227 | // ensure that the previous element is being swapped |
| 228 | if (newLength > 1) { |
| 229 | CharState previousState = mTextChars.get(newLength - 2); |
| 230 | if (previousState.isDotSwapPending) { |
| 231 | previousState.swapToDotWhenAppearFinished(); |
| 232 | } |
| 233 | } |
| 234 | userActivity(); |
Adrian Roos | a48caee | 2015-01-15 19:57:51 +0100 | [diff] [blame] | 235 | sendAccessibilityEventTypeViewTextChanged(textbefore, textbefore.length(), 0, 1); |
Selim Cinek | 4e8b9ed | 2014-06-20 16:37:04 -0700 | [diff] [blame] | 236 | } |
| 237 | |
Xiyuan Xia | 09eb033 | 2015-05-13 15:29:42 -0700 | [diff] [blame] | 238 | public void setUserActivityListener(UserActivityListener userActivitiListener) { |
| 239 | mUserActivityListener = userActivitiListener; |
| 240 | } |
| 241 | |
Selim Cinek | 4e8b9ed | 2014-06-20 16:37:04 -0700 | [diff] [blame] | 242 | private void userActivity() { |
| 243 | mPM.userActivity(SystemClock.uptimeMillis(), false); |
Xiyuan Xia | 09eb033 | 2015-05-13 15:29:42 -0700 | [diff] [blame] | 244 | if (mUserActivityListener != null) { |
| 245 | mUserActivityListener.onUserActivity(); |
| 246 | } |
Selim Cinek | 4e8b9ed | 2014-06-20 16:37:04 -0700 | [diff] [blame] | 247 | } |
| 248 | |
| 249 | public void deleteLastChar() { |
| 250 | int length = mText.length(); |
Phil Weaver | c355c7a | 2017-12-20 10:54:13 -0800 | [diff] [blame] | 251 | CharSequence textbefore = getTransformedText(); |
Selim Cinek | 4e8b9ed | 2014-06-20 16:37:04 -0700 | [diff] [blame] | 252 | if (length > 0) { |
| 253 | mText = mText.substring(0, length - 1); |
| 254 | CharState charState = mTextChars.get(length - 1); |
| 255 | charState.startRemoveAnimation(0, 0); |
Selim Cinek | 8a72b06 | 2017-06-22 15:24:11 -0700 | [diff] [blame] | 256 | sendAccessibilityEventTypeViewTextChanged(textbefore, textbefore.length() - 1, 1, 0); |
Selim Cinek | 4e8b9ed | 2014-06-20 16:37:04 -0700 | [diff] [blame] | 257 | } |
| 258 | userActivity(); |
| 259 | } |
| 260 | |
| 261 | public String getText() { |
| 262 | return mText; |
| 263 | } |
| 264 | |
Phil Weaver | c355c7a | 2017-12-20 10:54:13 -0800 | [diff] [blame] | 265 | private CharSequence getTransformedText() { |
| 266 | int textLength = mTextChars.size(); |
| 267 | StringBuilder stringBuilder = new StringBuilder(textLength); |
| 268 | for (int i = 0; i < textLength; i++) { |
| 269 | CharState charState = mTextChars.get(i); |
| 270 | // If the dot is disappearing, the character is disappearing entirely. Consider |
| 271 | // it gone. |
| 272 | if (charState.dotAnimator != null && !charState.dotAnimationIsGrowing) { |
| 273 | continue; |
| 274 | } |
| 275 | stringBuilder.append(charState.isCharVisibleForA11y() ? charState.whichChar : DOT); |
| 276 | } |
| 277 | return stringBuilder; |
| 278 | } |
| 279 | |
Selim Cinek | 4e8b9ed | 2014-06-20 16:37:04 -0700 | [diff] [blame] | 280 | private CharState obtainCharState(char c) { |
| 281 | CharState charState; |
| 282 | if(mCharPool.isEmpty()) { |
| 283 | charState = new CharState(); |
| 284 | } else { |
| 285 | charState = mCharPool.pop(); |
| 286 | charState.reset(); |
| 287 | } |
| 288 | charState.whichChar = c; |
| 289 | return charState; |
| 290 | } |
| 291 | |
Jim Miller | 4db942c | 2016-05-16 18:06:50 -0700 | [diff] [blame] | 292 | public void reset(boolean animated, boolean announce) { |
Phil Weaver | c355c7a | 2017-12-20 10:54:13 -0800 | [diff] [blame] | 293 | CharSequence textbefore = getTransformedText(); |
Selim Cinek | 4e8b9ed | 2014-06-20 16:37:04 -0700 | [diff] [blame] | 294 | mText = ""; |
| 295 | int length = mTextChars.size(); |
| 296 | int middleIndex = (length - 1) / 2; |
| 297 | long delayPerElement = RESET_DELAY_PER_ELEMENT; |
| 298 | for (int i = 0; i < length; i++) { |
| 299 | CharState charState = mTextChars.get(i); |
| 300 | if (animated) { |
| 301 | int delayIndex; |
| 302 | if (i <= middleIndex) { |
| 303 | delayIndex = i * 2; |
| 304 | } else { |
| 305 | int distToMiddle = i - middleIndex; |
| 306 | delayIndex = (length - 1) - (distToMiddle - 1) * 2; |
| 307 | } |
| 308 | long startDelay = delayIndex * delayPerElement; |
| 309 | startDelay = Math.min(startDelay, RESET_MAX_DELAY); |
| 310 | long maxDelay = delayPerElement * (length - 1); |
| 311 | maxDelay = Math.min(maxDelay, RESET_MAX_DELAY) + DISAPPEAR_DURATION; |
| 312 | charState.startRemoveAnimation(startDelay, maxDelay); |
| 313 | charState.removeDotSwapCallbacks(); |
| 314 | } else { |
| 315 | mCharPool.push(charState); |
| 316 | } |
| 317 | } |
| 318 | if (!animated) { |
| 319 | mTextChars.clear(); |
| 320 | } |
Jim Miller | 4db942c | 2016-05-16 18:06:50 -0700 | [diff] [blame] | 321 | if (announce) { |
| 322 | sendAccessibilityEventTypeViewTextChanged(textbefore, 0, textbefore.length(), 0); |
| 323 | } |
Adrian Roos | a48caee | 2015-01-15 19:57:51 +0100 | [diff] [blame] | 324 | } |
| 325 | |
Phil Weaver | c355c7a | 2017-12-20 10:54:13 -0800 | [diff] [blame] | 326 | void sendAccessibilityEventTypeViewTextChanged(CharSequence beforeText, int fromIndex, |
Adrian Roos | a48caee | 2015-01-15 19:57:51 +0100 | [diff] [blame] | 327 | int removedCount, int addedCount) { |
Eugene Susla | d4128ec | 2017-12-04 19:48:41 +0000 | [diff] [blame] | 328 | if (AccessibilityManager.getInstance(mContext).isEnabled() && |
| 329 | (isFocused() || isSelected() && isShown())) { |
Adrian Roos | a48caee | 2015-01-15 19:57:51 +0100 | [diff] [blame] | 330 | AccessibilityEvent event = |
| 331 | AccessibilityEvent.obtain(AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED); |
| 332 | event.setFromIndex(fromIndex); |
| 333 | event.setRemovedCount(removedCount); |
| 334 | event.setAddedCount(addedCount); |
| 335 | event.setBeforeText(beforeText); |
Phil Weaver | c355c7a | 2017-12-20 10:54:13 -0800 | [diff] [blame] | 336 | CharSequence transformedText = getTransformedText(); |
| 337 | if (!TextUtils.isEmpty(transformedText)) { |
| 338 | event.getText().add(transformedText); |
| 339 | } |
Adrian Roos | a48caee | 2015-01-15 19:57:51 +0100 | [diff] [blame] | 340 | event.setPassword(true); |
| 341 | sendAccessibilityEventUnchecked(event); |
| 342 | } |
| 343 | } |
| 344 | |
| 345 | @Override |
| 346 | public void onInitializeAccessibilityEvent(AccessibilityEvent event) { |
| 347 | super.onInitializeAccessibilityEvent(event); |
| 348 | |
Phil Weaver | 385912e | 2017-02-10 10:06:56 -0800 | [diff] [blame] | 349 | event.setClassName(EditText.class.getName()); |
Adrian Roos | a48caee | 2015-01-15 19:57:51 +0100 | [diff] [blame] | 350 | event.setPassword(true); |
| 351 | } |
| 352 | |
| 353 | @Override |
Adrian Roos | a48caee | 2015-01-15 19:57:51 +0100 | [diff] [blame] | 354 | public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { |
| 355 | super.onInitializeAccessibilityNodeInfo(info); |
| 356 | |
Phil Weaver | c355c7a | 2017-12-20 10:54:13 -0800 | [diff] [blame] | 357 | info.setClassName(EditText.class.getName()); |
Adrian Roos | a48caee | 2015-01-15 19:57:51 +0100 | [diff] [blame] | 358 | info.setPassword(true); |
Phil Weaver | c355c7a | 2017-12-20 10:54:13 -0800 | [diff] [blame] | 359 | info.setText(getTransformedText()); |
Adrian Roos | a48caee | 2015-01-15 19:57:51 +0100 | [diff] [blame] | 360 | |
Adrian Roos | a48caee | 2015-01-15 19:57:51 +0100 | [diff] [blame] | 361 | info.setEditable(true); |
| 362 | |
| 363 | info.setInputType(InputType.TYPE_NUMBER_VARIATION_PASSWORD); |
| 364 | } |
| 365 | |
Selim Cinek | 4e8b9ed | 2014-06-20 16:37:04 -0700 | [diff] [blame] | 366 | private class CharState { |
| 367 | char whichChar; |
| 368 | ValueAnimator textAnimator; |
| 369 | boolean textAnimationIsGrowing; |
| 370 | Animator dotAnimator; |
| 371 | boolean dotAnimationIsGrowing; |
| 372 | ValueAnimator widthAnimator; |
| 373 | boolean widthAnimationIsGrowing; |
| 374 | float currentTextSizeFactor; |
| 375 | float currentDotSizeFactor; |
| 376 | float currentWidthFactor; |
| 377 | boolean isDotSwapPending; |
| 378 | float currentTextTranslationY = 1.0f; |
| 379 | ValueAnimator textTranslateAnimator; |
| 380 | |
| 381 | Animator.AnimatorListener removeEndListener = new AnimatorListenerAdapter() { |
| 382 | private boolean mCancelled; |
| 383 | @Override |
| 384 | public void onAnimationCancel(Animator animation) { |
| 385 | mCancelled = true; |
| 386 | } |
| 387 | |
| 388 | @Override |
| 389 | public void onAnimationEnd(Animator animation) { |
| 390 | if (!mCancelled) { |
| 391 | mTextChars.remove(CharState.this); |
| 392 | mCharPool.push(CharState.this); |
| 393 | reset(); |
| 394 | cancelAnimator(textTranslateAnimator); |
| 395 | textTranslateAnimator = null; |
| 396 | } |
| 397 | } |
| 398 | |
| 399 | @Override |
| 400 | public void onAnimationStart(Animator animation) { |
| 401 | mCancelled = false; |
| 402 | } |
| 403 | }; |
| 404 | |
| 405 | Animator.AnimatorListener dotFinishListener = new AnimatorListenerAdapter() { |
| 406 | @Override |
| 407 | public void onAnimationEnd(Animator animation) { |
| 408 | dotAnimator = null; |
| 409 | } |
| 410 | }; |
| 411 | |
| 412 | Animator.AnimatorListener textFinishListener = new AnimatorListenerAdapter() { |
| 413 | @Override |
| 414 | public void onAnimationEnd(Animator animation) { |
| 415 | textAnimator = null; |
| 416 | } |
| 417 | }; |
| 418 | |
| 419 | Animator.AnimatorListener textTranslateFinishListener = new AnimatorListenerAdapter() { |
| 420 | @Override |
| 421 | public void onAnimationEnd(Animator animation) { |
| 422 | textTranslateAnimator = null; |
| 423 | } |
| 424 | }; |
| 425 | |
| 426 | Animator.AnimatorListener widthFinishListener = new AnimatorListenerAdapter() { |
| 427 | @Override |
| 428 | public void onAnimationEnd(Animator animation) { |
| 429 | widthAnimator = null; |
| 430 | } |
| 431 | }; |
| 432 | |
| 433 | private ValueAnimator.AnimatorUpdateListener dotSizeUpdater |
| 434 | = new ValueAnimator.AnimatorUpdateListener() { |
| 435 | @Override |
| 436 | public void onAnimationUpdate(ValueAnimator animation) { |
| 437 | currentDotSizeFactor = (float) animation.getAnimatedValue(); |
| 438 | invalidate(); |
| 439 | } |
| 440 | }; |
| 441 | |
| 442 | private ValueAnimator.AnimatorUpdateListener textSizeUpdater |
| 443 | = new ValueAnimator.AnimatorUpdateListener() { |
| 444 | @Override |
| 445 | public void onAnimationUpdate(ValueAnimator animation) { |
Phil Weaver | c355c7a | 2017-12-20 10:54:13 -0800 | [diff] [blame] | 446 | boolean textVisibleBefore = isCharVisibleForA11y(); |
| 447 | float beforeTextSizeFactor = currentTextSizeFactor; |
Selim Cinek | 4e8b9ed | 2014-06-20 16:37:04 -0700 | [diff] [blame] | 448 | currentTextSizeFactor = (float) animation.getAnimatedValue(); |
Phil Weaver | c355c7a | 2017-12-20 10:54:13 -0800 | [diff] [blame] | 449 | if (textVisibleBefore != isCharVisibleForA11y()) { |
| 450 | currentTextSizeFactor = beforeTextSizeFactor; |
| 451 | CharSequence beforeText = getTransformedText(); |
| 452 | currentTextSizeFactor = (float) animation.getAnimatedValue(); |
| 453 | int indexOfThisChar = mTextChars.indexOf(CharState.this); |
| 454 | if (indexOfThisChar >= 0) { |
| 455 | sendAccessibilityEventTypeViewTextChanged( |
| 456 | beforeText, indexOfThisChar, 1, 1); |
| 457 | } |
| 458 | } |
Selim Cinek | 4e8b9ed | 2014-06-20 16:37:04 -0700 | [diff] [blame] | 459 | invalidate(); |
| 460 | } |
| 461 | }; |
| 462 | |
| 463 | private ValueAnimator.AnimatorUpdateListener textTranslationUpdater |
| 464 | = new ValueAnimator.AnimatorUpdateListener() { |
| 465 | @Override |
| 466 | public void onAnimationUpdate(ValueAnimator animation) { |
| 467 | currentTextTranslationY = (float) animation.getAnimatedValue(); |
| 468 | invalidate(); |
| 469 | } |
| 470 | }; |
| 471 | |
| 472 | private ValueAnimator.AnimatorUpdateListener widthUpdater |
| 473 | = new ValueAnimator.AnimatorUpdateListener() { |
| 474 | @Override |
| 475 | public void onAnimationUpdate(ValueAnimator animation) { |
| 476 | currentWidthFactor = (float) animation.getAnimatedValue(); |
| 477 | invalidate(); |
| 478 | } |
| 479 | }; |
| 480 | |
| 481 | private Runnable dotSwapperRunnable = new Runnable() { |
| 482 | @Override |
| 483 | public void run() { |
| 484 | performSwap(); |
| 485 | isDotSwapPending = false; |
| 486 | } |
| 487 | }; |
| 488 | |
| 489 | void reset() { |
| 490 | whichChar = 0; |
| 491 | currentTextSizeFactor = 0.0f; |
| 492 | currentDotSizeFactor = 0.0f; |
| 493 | currentWidthFactor = 0.0f; |
| 494 | cancelAnimator(textAnimator); |
| 495 | textAnimator = null; |
| 496 | cancelAnimator(dotAnimator); |
| 497 | dotAnimator = null; |
| 498 | cancelAnimator(widthAnimator); |
| 499 | widthAnimator = null; |
| 500 | currentTextTranslationY = 1.0f; |
| 501 | removeDotSwapCallbacks(); |
| 502 | } |
| 503 | |
| 504 | void startRemoveAnimation(long startDelay, long widthDelay) { |
| 505 | boolean dotNeedsAnimation = (currentDotSizeFactor > 0.0f && dotAnimator == null) |
| 506 | || (dotAnimator != null && dotAnimationIsGrowing); |
| 507 | boolean textNeedsAnimation = (currentTextSizeFactor > 0.0f && textAnimator == null) |
| 508 | || (textAnimator != null && textAnimationIsGrowing); |
| 509 | boolean widthNeedsAnimation = (currentWidthFactor > 0.0f && widthAnimator == null) |
| 510 | || (widthAnimator != null && widthAnimationIsGrowing); |
| 511 | if (dotNeedsAnimation) { |
| 512 | startDotDisappearAnimation(startDelay); |
| 513 | } |
| 514 | if (textNeedsAnimation) { |
| 515 | startTextDisappearAnimation(startDelay); |
| 516 | } |
| 517 | if (widthNeedsAnimation) { |
| 518 | startWidthDisappearAnimation(widthDelay); |
| 519 | } |
| 520 | } |
| 521 | |
| 522 | void startAppearAnimation() { |
| 523 | boolean dotNeedsAnimation = !mShowPassword |
| 524 | && (dotAnimator == null || !dotAnimationIsGrowing); |
| 525 | boolean textNeedsAnimation = mShowPassword |
| 526 | && (textAnimator == null || !textAnimationIsGrowing); |
| 527 | boolean widthNeedsAnimation = (widthAnimator == null || !widthAnimationIsGrowing); |
| 528 | if (dotNeedsAnimation) { |
| 529 | startDotAppearAnimation(0); |
| 530 | } |
| 531 | if (textNeedsAnimation) { |
| 532 | startTextAppearAnimation(); |
| 533 | } |
| 534 | if (widthNeedsAnimation) { |
| 535 | startWidthAppearAnimation(); |
| 536 | } |
| 537 | if (mShowPassword) { |
| 538 | postDotSwap(TEXT_VISIBILITY_DURATION); |
| 539 | } |
| 540 | } |
| 541 | |
| 542 | /** |
| 543 | * Posts a runnable which ensures that the text will be replaced by a dot after {@link |
| 544 | * com.android.keyguard.PasswordTextView#TEXT_VISIBILITY_DURATION}. |
| 545 | */ |
| 546 | private void postDotSwap(long delay) { |
| 547 | removeDotSwapCallbacks(); |
| 548 | postDelayed(dotSwapperRunnable, delay); |
| 549 | isDotSwapPending = true; |
| 550 | } |
| 551 | |
| 552 | private void removeDotSwapCallbacks() { |
| 553 | removeCallbacks(dotSwapperRunnable); |
| 554 | isDotSwapPending = false; |
| 555 | } |
| 556 | |
| 557 | void swapToDotWhenAppearFinished() { |
| 558 | removeDotSwapCallbacks(); |
| 559 | if (textAnimator != null) { |
| 560 | long remainingDuration = textAnimator.getDuration() |
| 561 | - textAnimator.getCurrentPlayTime(); |
| 562 | postDotSwap(remainingDuration + TEXT_REST_DURATION_AFTER_APPEAR); |
| 563 | } else { |
| 564 | performSwap(); |
| 565 | } |
| 566 | } |
| 567 | |
| 568 | private void performSwap() { |
| 569 | startTextDisappearAnimation(0); |
| 570 | startDotAppearAnimation(DISAPPEAR_DURATION |
| 571 | - DOT_APPEAR_TEXT_DISAPPEAR_OVERLAP_DURATION); |
| 572 | } |
| 573 | |
| 574 | private void startWidthDisappearAnimation(long widthDelay) { |
| 575 | cancelAnimator(widthAnimator); |
| 576 | widthAnimator = ValueAnimator.ofFloat(currentWidthFactor, 0.0f); |
| 577 | widthAnimator.addUpdateListener(widthUpdater); |
| 578 | widthAnimator.addListener(widthFinishListener); |
| 579 | widthAnimator.addListener(removeEndListener); |
| 580 | widthAnimator.setDuration((long) (DISAPPEAR_DURATION * currentWidthFactor)); |
| 581 | widthAnimator.setStartDelay(widthDelay); |
| 582 | widthAnimator.start(); |
| 583 | widthAnimationIsGrowing = false; |
| 584 | } |
| 585 | |
| 586 | private void startTextDisappearAnimation(long startDelay) { |
| 587 | cancelAnimator(textAnimator); |
| 588 | textAnimator = ValueAnimator.ofFloat(currentTextSizeFactor, 0.0f); |
| 589 | textAnimator.addUpdateListener(textSizeUpdater); |
| 590 | textAnimator.addListener(textFinishListener); |
| 591 | textAnimator.setInterpolator(mDisappearInterpolator); |
| 592 | textAnimator.setDuration((long) (DISAPPEAR_DURATION * currentTextSizeFactor)); |
| 593 | textAnimator.setStartDelay(startDelay); |
| 594 | textAnimator.start(); |
| 595 | textAnimationIsGrowing = false; |
| 596 | } |
| 597 | |
| 598 | private void startDotDisappearAnimation(long startDelay) { |
| 599 | cancelAnimator(dotAnimator); |
| 600 | ValueAnimator animator = ValueAnimator.ofFloat(currentDotSizeFactor, 0.0f); |
| 601 | animator.addUpdateListener(dotSizeUpdater); |
| 602 | animator.addListener(dotFinishListener); |
| 603 | animator.setInterpolator(mDisappearInterpolator); |
| 604 | long duration = (long) (DISAPPEAR_DURATION * Math.min(currentDotSizeFactor, 1.0f)); |
| 605 | animator.setDuration(duration); |
| 606 | animator.setStartDelay(startDelay); |
| 607 | animator.start(); |
| 608 | dotAnimator = animator; |
| 609 | dotAnimationIsGrowing = false; |
| 610 | } |
| 611 | |
| 612 | private void startWidthAppearAnimation() { |
| 613 | cancelAnimator(widthAnimator); |
| 614 | widthAnimator = ValueAnimator.ofFloat(currentWidthFactor, 1.0f); |
| 615 | widthAnimator.addUpdateListener(widthUpdater); |
| 616 | widthAnimator.addListener(widthFinishListener); |
| 617 | widthAnimator.setDuration((long) (APPEAR_DURATION * (1f - currentWidthFactor))); |
| 618 | widthAnimator.start(); |
| 619 | widthAnimationIsGrowing = true; |
| 620 | } |
| 621 | |
| 622 | private void startTextAppearAnimation() { |
| 623 | cancelAnimator(textAnimator); |
| 624 | textAnimator = ValueAnimator.ofFloat(currentTextSizeFactor, 1.0f); |
| 625 | textAnimator.addUpdateListener(textSizeUpdater); |
| 626 | textAnimator.addListener(textFinishListener); |
| 627 | textAnimator.setInterpolator(mAppearInterpolator); |
| 628 | textAnimator.setDuration((long) (APPEAR_DURATION * (1f - currentTextSizeFactor))); |
| 629 | textAnimator.start(); |
| 630 | textAnimationIsGrowing = true; |
| 631 | |
| 632 | // handle translation |
| 633 | if (textTranslateAnimator == null) { |
| 634 | textTranslateAnimator = ValueAnimator.ofFloat(1.0f, 0.0f); |
| 635 | textTranslateAnimator.addUpdateListener(textTranslationUpdater); |
| 636 | textTranslateAnimator.addListener(textTranslateFinishListener); |
| 637 | textTranslateAnimator.setInterpolator(mAppearInterpolator); |
| 638 | textTranslateAnimator.setDuration(APPEAR_DURATION); |
| 639 | textTranslateAnimator.start(); |
| 640 | } |
| 641 | } |
| 642 | |
| 643 | private void startDotAppearAnimation(long delay) { |
| 644 | cancelAnimator(dotAnimator); |
| 645 | if (!mShowPassword) { |
| 646 | // We perform an overshoot animation |
| 647 | ValueAnimator overShootAnimator = ValueAnimator.ofFloat(currentDotSizeFactor, |
| 648 | DOT_OVERSHOOT_FACTOR); |
| 649 | overShootAnimator.addUpdateListener(dotSizeUpdater); |
| 650 | overShootAnimator.setInterpolator(mAppearInterpolator); |
| 651 | long overShootDuration = (long) (DOT_APPEAR_DURATION_OVERSHOOT |
| 652 | * OVERSHOOT_TIME_POSITION); |
| 653 | overShootAnimator.setDuration(overShootDuration); |
| 654 | ValueAnimator settleBackAnimator = ValueAnimator.ofFloat(DOT_OVERSHOOT_FACTOR, |
| 655 | 1.0f); |
| 656 | settleBackAnimator.addUpdateListener(dotSizeUpdater); |
| 657 | settleBackAnimator.setDuration(DOT_APPEAR_DURATION_OVERSHOOT - overShootDuration); |
| 658 | settleBackAnimator.addListener(dotFinishListener); |
| 659 | AnimatorSet animatorSet = new AnimatorSet(); |
| 660 | animatorSet.playSequentially(overShootAnimator, settleBackAnimator); |
| 661 | animatorSet.setStartDelay(delay); |
| 662 | animatorSet.start(); |
| 663 | dotAnimator = animatorSet; |
| 664 | } else { |
| 665 | ValueAnimator growAnimator = ValueAnimator.ofFloat(currentDotSizeFactor, 1.0f); |
| 666 | growAnimator.addUpdateListener(dotSizeUpdater); |
| 667 | growAnimator.setDuration((long) (APPEAR_DURATION * (1.0f - currentDotSizeFactor))); |
| 668 | growAnimator.addListener(dotFinishListener); |
| 669 | growAnimator.setStartDelay(delay); |
| 670 | growAnimator.start(); |
| 671 | dotAnimator = growAnimator; |
| 672 | } |
| 673 | dotAnimationIsGrowing = true; |
| 674 | } |
| 675 | |
| 676 | private void cancelAnimator(Animator animator) { |
| 677 | if (animator != null) { |
| 678 | animator.cancel(); |
| 679 | } |
| 680 | } |
| 681 | |
| 682 | /** |
| 683 | * Draw this char to the canvas. |
| 684 | * |
| 685 | * @return The width this character contributes, including padding. |
| 686 | */ |
| 687 | public float draw(Canvas canvas, float currentDrawPosition, int charHeight, float yPosition, |
| 688 | float charLength) { |
| 689 | boolean textVisible = currentTextSizeFactor > 0; |
| 690 | boolean dotVisible = currentDotSizeFactor > 0; |
| 691 | float charWidth = charLength * currentWidthFactor; |
| 692 | if (textVisible) { |
| 693 | float currYPosition = yPosition + charHeight / 2.0f * currentTextSizeFactor |
| 694 | + charHeight * currentTextTranslationY * 0.8f; |
| 695 | canvas.save(); |
| 696 | float centerX = currentDrawPosition + charWidth / 2; |
| 697 | canvas.translate(centerX, currYPosition); |
| 698 | canvas.scale(currentTextSizeFactor, currentTextSizeFactor); |
| 699 | canvas.drawText(Character.toString(whichChar), 0, 0, mDrawPaint); |
| 700 | canvas.restore(); |
| 701 | } |
| 702 | if (dotVisible) { |
| 703 | canvas.save(); |
| 704 | float centerX = currentDrawPosition + charWidth / 2; |
| 705 | canvas.translate(centerX, yPosition); |
| 706 | canvas.drawCircle(0, 0, mDotSize / 2 * currentDotSizeFactor, mDrawPaint); |
| 707 | canvas.restore(); |
| 708 | } |
| 709 | return charWidth + mCharPadding * currentWidthFactor; |
| 710 | } |
Phil Weaver | c355c7a | 2017-12-20 10:54:13 -0800 | [diff] [blame] | 711 | |
| 712 | public boolean isCharVisibleForA11y() { |
| 713 | // The text has size 0 when it is first added, but we want to count it as visible if |
| 714 | // it will become visible presently. Count text as visible if an animator |
| 715 | // is configured to make it grow. |
| 716 | boolean textIsGrowing = textAnimator != null && textAnimationIsGrowing; |
| 717 | return (currentTextSizeFactor > 0) || textIsGrowing; |
| 718 | } |
Selim Cinek | 4e8b9ed | 2014-06-20 16:37:04 -0700 | [diff] [blame] | 719 | } |
| 720 | } |