cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2008 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 | |
Maarten Derks | e901e0c | 2017-05-22 11:15:44 +0200 | [diff] [blame] | 17 | package com.fairphone.setupwizard.ui; |
cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 18 | |
Maarten Derks | e901e0c | 2017-05-22 11:15:44 +0200 | [diff] [blame] | 19 | import com.fairphone.setupwizard.R; |
cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 20 | |
| 21 | import android.annotation.Widget; |
| 22 | import android.content.Context; |
| 23 | import android.content.res.ColorStateList; |
| 24 | import android.content.res.TypedArray; |
| 25 | import android.graphics.Canvas; |
| 26 | import android.graphics.Color; |
| 27 | import android.graphics.Paint; |
| 28 | import android.graphics.Paint.Align; |
| 29 | import android.graphics.Rect; |
| 30 | import android.graphics.drawable.Drawable; |
| 31 | import android.os.Bundle; |
| 32 | import android.text.InputFilter; |
| 33 | import android.text.InputType; |
| 34 | import android.text.Spanned; |
| 35 | import android.text.TextUtils; |
| 36 | import android.text.method.NumberKeyListener; |
| 37 | import android.util.AttributeSet; |
| 38 | import android.util.SparseArray; |
| 39 | import android.util.TypedValue; |
| 40 | import android.view.KeyEvent; |
| 41 | import android.view.LayoutInflater; |
| 42 | import android.view.MotionEvent; |
| 43 | import android.view.VelocityTracker; |
| 44 | import android.view.View; |
| 45 | import android.view.ViewConfiguration; |
| 46 | import android.view.accessibility.AccessibilityEvent; |
| 47 | import android.view.accessibility.AccessibilityManager; |
| 48 | import android.view.accessibility.AccessibilityNodeInfo; |
| 49 | import android.view.accessibility.AccessibilityNodeProvider; |
| 50 | import android.view.animation.DecelerateInterpolator; |
| 51 | import android.view.inputmethod.EditorInfo; |
| 52 | import android.view.inputmethod.InputMethodManager; |
| 53 | import android.widget.Button; |
| 54 | import android.widget.EditText; |
| 55 | import android.widget.ImageButton; |
| 56 | import android.widget.LinearLayout; |
| 57 | import android.widget.Scroller; |
| 58 | import android.widget.TextView; |
| 59 | |
| 60 | import java.util.ArrayList; |
| 61 | import java.util.Collections; |
| 62 | import java.util.List; |
| 63 | import java.util.Locale; |
| 64 | |
| 65 | import libcore.icu.LocaleData; |
| 66 | |
| 67 | /** |
| 68 | * A widget that enables the user to select a number form a predefined range. |
| 69 | * There are two flavors of this widget and which one is presented to the user |
| 70 | * depends on the current theme. |
| 71 | * <ul> |
| 72 | * <li> |
| 73 | * If the current theme is derived from {@link android.R.style#Theme} the widget |
| 74 | * presents the current value as an editable input field with an increment button |
| 75 | * above and a decrement button below. Long pressing the buttons allows for a quick |
| 76 | * change of the current value. Tapping on the input field allows to type in |
| 77 | * a desired value. |
| 78 | * </li> |
| 79 | * <li> |
| 80 | * If the current theme is derived from {@link android.R.style#Theme_Holo} or |
| 81 | * {@link android.R.style#Theme_Holo_Light} the widget presents the current |
| 82 | * value as an editable input field with a lesser value above and a greater |
| 83 | * value below. Tapping on the lesser or greater value selects it by animating |
| 84 | * the number axis up or down to make the chosen value current. Flinging up |
| 85 | * or down allows for multiple increments or decrements of the current value. |
| 86 | * Long pressing on the lesser and greater values also allows for a quick change |
| 87 | * of the current value. Tapping on the current value allows to type in a |
| 88 | * desired value. |
| 89 | * </li> |
| 90 | * </ul> |
| 91 | * <p> |
| 92 | * For an example of using this widget, see {@link android.widget.TimePicker}. |
| 93 | * </p> |
| 94 | */ |
| 95 | @Widget |
| 96 | public class LocalePicker extends LinearLayout { |
| 97 | |
| 98 | /** |
| 99 | * The number of items show in the selector wheel. |
| 100 | */ |
cretin45 | b64d5e7 | 2015-10-27 12:44:11 -0700 | [diff] [blame] | 101 | private static int sSelectorWheelItemCount = 3; |
cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 102 | |
| 103 | /** |
| 104 | * The default update interval during long press. |
| 105 | */ |
| 106 | private static final long DEFAULT_LONG_PRESS_UPDATE_INTERVAL = 300; |
| 107 | |
| 108 | /** |
| 109 | * The index of the middle selector item. |
| 110 | */ |
cretin45 | b64d5e7 | 2015-10-27 12:44:11 -0700 | [diff] [blame] | 111 | private static int sSelectorMiddleItemIndex = sSelectorWheelItemCount / 2; |
cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 112 | |
| 113 | /** |
| 114 | * The coefficient by which to adjust (divide) the max fling velocity. |
| 115 | */ |
| 116 | private static final int SELECTOR_MAX_FLING_VELOCITY_ADJUSTMENT = 8; |
| 117 | |
| 118 | /** |
| 119 | * The the duration for adjusting the selector wheel. |
| 120 | */ |
| 121 | private static final int SELECTOR_ADJUSTMENT_DURATION_MILLIS = 800; |
| 122 | |
| 123 | /** |
| 124 | * The duration of scrolling while snapping to a given position. |
| 125 | */ |
| 126 | private static final int SNAP_SCROLL_DURATION = 300; |
| 127 | |
| 128 | /** |
| 129 | * The strength of fading in the top and bottom while drawing the selector. |
| 130 | */ |
| 131 | private static final float TOP_AND_BOTTOM_FADING_EDGE_STRENGTH = 0.9f; |
| 132 | |
| 133 | /** |
| 134 | * The default unscaled height of the selection divider. |
| 135 | */ |
| 136 | private static final int UNSCALED_DEFAULT_SELECTION_DIVIDER_HEIGHT = 1; |
| 137 | |
| 138 | /** |
| 139 | * The default unscaled distance between the selection dividers. |
| 140 | */ |
| 141 | private static final int UNSCALED_DEFAULT_SELECTION_DIVIDERS_DISTANCE = 48; |
| 142 | |
| 143 | /** |
| 144 | * The resource id for the default layout. |
| 145 | */ |
| 146 | private static final int DEFAULT_LAYOUT_RESOURCE_ID = |
cretin45 | b64d5e7 | 2015-10-27 12:44:11 -0700 | [diff] [blame] | 147 | R.layout.locale_picker; |
cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 148 | |
| 149 | /** |
| 150 | * Constant for unspecified size. |
| 151 | */ |
| 152 | private static final int SIZE_UNSPECIFIED = -1; |
| 153 | |
| 154 | /** |
| 155 | * Use a custom NumberPicker formatting callback to use two-digit minutes |
| 156 | * strings like "01". Keeping a static formatter etc. is the most efficient |
| 157 | * way to do this; it avoids creating temporary objects on every call to |
| 158 | * format(). |
| 159 | */ |
| 160 | private static class TwoDigitFormatter implements LocalePicker.Formatter { |
| 161 | final StringBuilder mBuilder = new StringBuilder(); |
| 162 | |
| 163 | char mZeroDigit; |
| 164 | java.util.Formatter mFmt; |
| 165 | |
| 166 | final Object[] mArgs = new Object[1]; |
| 167 | |
| 168 | TwoDigitFormatter() { |
| 169 | final Locale locale = Locale.getDefault(); |
| 170 | init(locale); |
| 171 | } |
| 172 | |
| 173 | private void init(Locale locale) { |
| 174 | mFmt = createFormatter(locale); |
| 175 | mZeroDigit = getZeroDigit(locale); |
| 176 | } |
| 177 | |
| 178 | public String format(int value) { |
| 179 | final Locale currentLocale = Locale.getDefault(); |
| 180 | if (mZeroDigit != getZeroDigit(currentLocale)) { |
| 181 | init(currentLocale); |
| 182 | } |
| 183 | mArgs[0] = value; |
| 184 | mBuilder.delete(0, mBuilder.length()); |
| 185 | mFmt.format("%02d", mArgs); |
| 186 | return mFmt.toString(); |
| 187 | } |
| 188 | |
| 189 | private static char getZeroDigit(Locale locale) { |
| 190 | return LocaleData.get(locale).zeroDigit; |
| 191 | } |
| 192 | |
| 193 | private java.util.Formatter createFormatter(Locale locale) { |
| 194 | return new java.util.Formatter(mBuilder, locale); |
| 195 | } |
| 196 | } |
| 197 | |
| 198 | private static final TwoDigitFormatter sTwoDigitFormatter = new TwoDigitFormatter(); |
| 199 | |
| 200 | /** |
| 201 | * @hide |
| 202 | */ |
| 203 | public static final Formatter getTwoDigitFormatter() { |
| 204 | return sTwoDigitFormatter; |
| 205 | } |
| 206 | |
| 207 | /** |
| 208 | * The increment button. |
| 209 | */ |
| 210 | private final ImageButton mIncrementButton; |
| 211 | |
| 212 | /** |
| 213 | * The decrement button. |
| 214 | */ |
| 215 | private final ImageButton mDecrementButton; |
| 216 | |
| 217 | /** |
| 218 | * The text for showing the current value. |
| 219 | */ |
| 220 | private final EditText mInputText; |
| 221 | |
| 222 | /** |
| 223 | * The distance between the two selection dividers. |
| 224 | */ |
| 225 | private final int mSelectionDividersDistance; |
| 226 | |
| 227 | /** |
| 228 | * The min height of this widget. |
| 229 | */ |
| 230 | private final int mMinHeight; |
| 231 | |
| 232 | /** |
| 233 | * The max height of this widget. |
| 234 | */ |
| 235 | private final int mMaxHeight; |
| 236 | |
| 237 | /** |
| 238 | * The max width of this widget. |
| 239 | */ |
| 240 | private final int mMinWidth; |
| 241 | |
| 242 | /** |
| 243 | * The max width of this widget. |
| 244 | */ |
| 245 | private int mMaxWidth; |
| 246 | |
| 247 | /** |
| 248 | * Flag whether to compute the max width. |
| 249 | */ |
| 250 | private final boolean mComputeMaxWidth; |
| 251 | |
| 252 | /** |
| 253 | * The height of the text. |
| 254 | */ |
| 255 | private final int mTextSize; |
| 256 | |
| 257 | /** |
| 258 | * The height of the gap between text elements if the selector wheel. |
| 259 | */ |
| 260 | private int mSelectorTextGapHeight; |
| 261 | |
| 262 | /** |
| 263 | * The values to be displayed instead the indices. |
| 264 | */ |
| 265 | private String[] mDisplayedValues; |
| 266 | |
| 267 | /** |
| 268 | * Lower value of the range of numbers allowed for the NumberPicker |
| 269 | */ |
| 270 | private int mMinValue; |
| 271 | |
| 272 | /** |
| 273 | * Upper value of the range of numbers allowed for the NumberPicker |
| 274 | */ |
| 275 | private int mMaxValue; |
| 276 | |
| 277 | /** |
| 278 | * Current value of this NumberPicker |
| 279 | */ |
| 280 | private int mValue; |
| 281 | |
| 282 | /** |
| 283 | * Listener to be notified upon current value change. |
| 284 | */ |
| 285 | private OnValueChangeListener mOnValueChangeListener; |
| 286 | |
| 287 | /** |
| 288 | * Listener to be notified upon scroll state change. |
| 289 | */ |
| 290 | private OnScrollListener mOnScrollListener; |
| 291 | |
| 292 | /** |
| 293 | * Formatter for for displaying the current value. |
| 294 | */ |
| 295 | private Formatter mFormatter; |
| 296 | |
| 297 | /** |
| 298 | * The speed for updating the value form long press. |
| 299 | */ |
| 300 | private long mLongPressUpdateInterval = DEFAULT_LONG_PRESS_UPDATE_INTERVAL; |
| 301 | |
| 302 | /** |
| 303 | * Cache for the string representation of selector indices. |
| 304 | */ |
| 305 | private final SparseArray<String> mSelectorIndexToStringCache = new SparseArray<String>(); |
| 306 | |
| 307 | /** |
| 308 | * The selector indices whose value are show by the selector. |
| 309 | */ |
| 310 | private final int[] mSelectorIndices; |
| 311 | |
| 312 | /** |
| 313 | * The {@link android.graphics.Paint} for drawing the selector. |
| 314 | */ |
| 315 | private final Paint mSelectorWheelPaint; |
| 316 | |
| 317 | /** |
| 318 | * The {@link android.graphics.drawable.Drawable} for pressed virtual (increment/decrement) buttons. |
| 319 | */ |
| 320 | private final Drawable mVirtualButtonPressedDrawable; |
| 321 | |
| 322 | /** |
| 323 | * The height of a selector element (text + gap). |
| 324 | */ |
| 325 | private int mSelectorElementHeight; |
| 326 | |
| 327 | /** |
| 328 | * The initial offset of the scroll selector. |
| 329 | */ |
| 330 | private int mInitialScrollOffset = Integer.MIN_VALUE; |
| 331 | |
| 332 | /** |
| 333 | * The current offset of the scroll selector. |
| 334 | */ |
| 335 | private int mCurrentScrollOffset; |
| 336 | |
| 337 | /** |
| 338 | * The {@link android.widget.Scroller} responsible for flinging the selector. |
| 339 | */ |
| 340 | private final Scroller mFlingScroller; |
| 341 | |
| 342 | /** |
| 343 | * The {@link android.widget.Scroller} responsible for adjusting the selector. |
| 344 | */ |
| 345 | private final Scroller mAdjustScroller; |
| 346 | |
| 347 | /** |
| 348 | * The previous Y coordinate while scrolling the selector. |
| 349 | */ |
| 350 | private int mPreviousScrollerY; |
| 351 | |
| 352 | /** |
| 353 | * Handle to the reusable command for setting the input text selection. |
| 354 | */ |
| 355 | private SetSelectionCommand mSetSelectionCommand; |
| 356 | |
| 357 | /** |
| 358 | * Handle to the reusable command for changing the current value from long |
| 359 | * press by one. |
| 360 | */ |
| 361 | private ChangeCurrentByOneFromLongPressCommand mChangeCurrentByOneFromLongPressCommand; |
| 362 | |
| 363 | /** |
| 364 | * Command for beginning an edit of the current value via IME on long press. |
| 365 | */ |
| 366 | private BeginSoftInputOnLongPressCommand mBeginSoftInputOnLongPressCommand; |
| 367 | |
| 368 | /** |
| 369 | * The Y position of the last down event. |
| 370 | */ |
| 371 | private float mLastDownEventY; |
| 372 | |
| 373 | /** |
| 374 | * The time of the last down event. |
| 375 | */ |
| 376 | private long mLastDownEventTime; |
| 377 | |
| 378 | /** |
| 379 | * The Y position of the last down or move event. |
| 380 | */ |
| 381 | private float mLastDownOrMoveEventY; |
| 382 | |
| 383 | /** |
| 384 | * Determines speed during touch scrolling. |
| 385 | */ |
| 386 | private VelocityTracker mVelocityTracker; |
| 387 | |
| 388 | /** |
| 389 | * @see android.view.ViewConfiguration#getScaledTouchSlop() |
| 390 | */ |
| 391 | private int mTouchSlop; |
| 392 | |
| 393 | /** |
| 394 | * @see android.view.ViewConfiguration#getScaledMinimumFlingVelocity() |
| 395 | */ |
| 396 | private int mMinimumFlingVelocity; |
| 397 | |
| 398 | /** |
| 399 | * @see android.view.ViewConfiguration#getScaledMaximumFlingVelocity() |
| 400 | */ |
| 401 | private int mMaximumFlingVelocity; |
| 402 | |
| 403 | /** |
| 404 | * Flag whether the selector should wrap around. |
| 405 | */ |
| 406 | private boolean mWrapSelectorWheel; |
| 407 | |
| 408 | /** |
| 409 | * The back ground color used to optimize scroller fading. |
| 410 | */ |
| 411 | private final int mSolidColor; |
| 412 | |
| 413 | /** |
| 414 | * Flag whether this widget has a selector wheel. |
| 415 | */ |
| 416 | private final boolean mHasSelectorWheel; |
| 417 | |
| 418 | /** |
| 419 | * Divider for showing item to be selected while scrolling |
| 420 | */ |
| 421 | private final Drawable mSelectionDivider; |
| 422 | |
| 423 | /** |
| 424 | * The height of the selection divider. |
| 425 | */ |
| 426 | private final int mSelectionDividerHeight; |
| 427 | |
| 428 | /** |
| 429 | * The current scroll state of the number picker. |
| 430 | */ |
| 431 | private int mScrollState = OnScrollListener.SCROLL_STATE_IDLE; |
| 432 | |
| 433 | /** |
| 434 | * Flag whether to ignore move events - we ignore such when we show in IME |
| 435 | * to prevent the content from scrolling. |
| 436 | */ |
| 437 | private boolean mIngonreMoveEvents; |
| 438 | |
| 439 | /** |
| 440 | * Flag whether to show soft input on tap. |
| 441 | */ |
| 442 | private boolean mShowSoftInputOnTap; |
| 443 | |
| 444 | /** |
| 445 | * The top of the top selection divider. |
| 446 | */ |
| 447 | private int mTopSelectionDividerTop; |
| 448 | |
| 449 | /** |
| 450 | * The bottom of the bottom selection divider. |
| 451 | */ |
| 452 | private int mBottomSelectionDividerBottom; |
| 453 | |
| 454 | /** |
| 455 | * The virtual id of the last hovered child. |
| 456 | */ |
| 457 | private int mLastHoveredChildVirtualViewId; |
| 458 | |
| 459 | /** |
| 460 | * Whether the increment virtual button is pressed. |
| 461 | */ |
| 462 | private boolean mIncrementVirtualButtonPressed; |
| 463 | |
| 464 | /** |
| 465 | * Whether the decrement virtual button is pressed. |
| 466 | */ |
| 467 | private boolean mDecrementVirtualButtonPressed; |
| 468 | |
| 469 | /** |
| 470 | * Provider to report to clients the semantic structure of this widget. |
| 471 | */ |
| 472 | private AccessibilityNodeProviderImpl mAccessibilityNodeProvider; |
| 473 | |
| 474 | /** |
| 475 | * Helper class for managing pressed state of the virtual buttons. |
| 476 | */ |
| 477 | private final PressedStateHelper mPressedStateHelper; |
| 478 | |
| 479 | /** |
| 480 | * The keycode of the last handled DPAD down event. |
| 481 | */ |
| 482 | private int mLastHandledDownDpadKeyCode = -1; |
| 483 | |
| 484 | /** |
| 485 | * Interface to listen for changes of the current value. |
| 486 | */ |
| 487 | public interface OnValueChangeListener { |
| 488 | |
| 489 | /** |
| 490 | * Called upon a change of the current value. |
| 491 | * |
| 492 | * @param picker The NumberPicker associated with this listener. |
| 493 | * @param oldVal The previous value. |
| 494 | * @param newVal The new value. |
| 495 | */ |
| 496 | void onValueChange(LocalePicker picker, int oldVal, int newVal); |
| 497 | } |
| 498 | |
| 499 | /** |
| 500 | * Interface to listen for the picker scroll state. |
| 501 | */ |
| 502 | public interface OnScrollListener { |
| 503 | |
| 504 | /** |
| 505 | * The view is not scrolling. |
| 506 | */ |
| 507 | public static int SCROLL_STATE_IDLE = 0; |
| 508 | |
| 509 | /** |
| 510 | * The user is scrolling using touch, and his finger is still on the screen. |
| 511 | */ |
| 512 | public static int SCROLL_STATE_TOUCH_SCROLL = 1; |
| 513 | |
| 514 | /** |
| 515 | * The user had previously been scrolling using touch and performed a fling. |
| 516 | */ |
| 517 | public static int SCROLL_STATE_FLING = 2; |
| 518 | |
| 519 | /** |
| 520 | * Callback invoked while the number picker scroll state has changed. |
| 521 | * |
| 522 | * @param view The view whose scroll state is being reported. |
| 523 | * @param scrollState The current scroll state. One of |
| 524 | * {@link #SCROLL_STATE_IDLE}, |
| 525 | * {@link #SCROLL_STATE_TOUCH_SCROLL} or |
| 526 | * {@link #SCROLL_STATE_IDLE}. |
| 527 | */ |
| 528 | public void onScrollStateChange(LocalePicker view, int scrollState); |
| 529 | } |
| 530 | |
| 531 | /** |
| 532 | * Interface used to format current value into a string for presentation. |
| 533 | */ |
| 534 | public interface Formatter { |
| 535 | |
| 536 | /** |
| 537 | * Formats a string representation of the current value. |
| 538 | * |
| 539 | * @param value The currently selected value. |
| 540 | * @return A formatted string representation. |
| 541 | */ |
| 542 | public String format(int value); |
| 543 | } |
| 544 | |
| 545 | /** |
| 546 | * Create a new number picker. |
| 547 | * |
| 548 | * @param context The application environment. |
| 549 | */ |
| 550 | public LocalePicker(Context context) { |
| 551 | this(context, null); |
| 552 | } |
| 553 | |
| 554 | /** |
| 555 | * Create a new number picker. |
| 556 | * |
| 557 | * @param context The application environment. |
| 558 | * @param attrs A collection of attributes. |
| 559 | */ |
| 560 | public LocalePicker(Context context, AttributeSet attrs) { |
cretin45 | b64d5e7 | 2015-10-27 12:44:11 -0700 | [diff] [blame] | 561 | this(context, attrs, R.attr.localePickerStyle); |
cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 562 | } |
| 563 | |
| 564 | /** |
| 565 | * Create a new number picker |
| 566 | * |
| 567 | * @param context the application environment. |
| 568 | * @param attrs a collection of attributes. |
| 569 | * @param defStyle The default style to apply to this view. |
| 570 | */ |
| 571 | public LocalePicker(Context context, AttributeSet attrs, int defStyle) { |
| 572 | super(context, attrs, defStyle); |
cretin45 | b64d5e7 | 2015-10-27 12:44:11 -0700 | [diff] [blame] | 573 | sSelectorWheelItemCount = context.getResources().getInteger(R.integer.local_picker_items); |
| 574 | sSelectorMiddleItemIndex = context.getResources().getInteger(R.integer.local_picker_items)/2; |
| 575 | mSelectorIndices= new int[sSelectorWheelItemCount]; |
cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 576 | // process style attributes |
| 577 | TypedArray attributesArray = context.obtainStyledAttributes( |
cretin45 | b64d5e7 | 2015-10-27 12:44:11 -0700 | [diff] [blame] | 578 | attrs, R.styleable.LocalePicker, defStyle, 0); |
cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 579 | final int layoutResId = attributesArray.getResourceId( |
cretin45 | b64d5e7 | 2015-10-27 12:44:11 -0700 | [diff] [blame] | 580 | R.styleable.LocalePicker_internalLayout, DEFAULT_LAYOUT_RESOURCE_ID); |
cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 581 | |
cretin45 | b64d5e7 | 2015-10-27 12:44:11 -0700 | [diff] [blame] | 582 | mHasSelectorWheel = true; |
cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 583 | |
cretin45 | b64d5e7 | 2015-10-27 12:44:11 -0700 | [diff] [blame] | 584 | mSolidColor = attributesArray.getColor(R.styleable.LocalePicker_solidColor, 0); |
cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 585 | |
cretin45 | b64d5e7 | 2015-10-27 12:44:11 -0700 | [diff] [blame] | 586 | mSelectionDivider = attributesArray.getDrawable(R.styleable.LocalePicker_selectionDivider); |
cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 587 | |
cretin45 | b64d5e7 | 2015-10-27 12:44:11 -0700 | [diff] [blame] | 588 | final int defSelectionDividerHeight = (int) TypedValue.applyDimension( |
| 589 | TypedValue.COMPLEX_UNIT_DIP, UNSCALED_DEFAULT_SELECTION_DIVIDER_HEIGHT, |
| 590 | getResources().getDisplayMetrics()); |
| 591 | mSelectionDividerHeight = attributesArray.getDimensionPixelSize( |
| 592 | R.styleable.LocalePicker_selectionDividerHeight, defSelectionDividerHeight); |
cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 593 | |
| 594 | final int defSelectionDividerDistance = (int) TypedValue.applyDimension( |
| 595 | TypedValue.COMPLEX_UNIT_DIP, UNSCALED_DEFAULT_SELECTION_DIVIDERS_DISTANCE, |
| 596 | getResources().getDisplayMetrics()); |
| 597 | mSelectionDividersDistance = attributesArray.getDimensionPixelSize( |
cretin45 | b64d5e7 | 2015-10-27 12:44:11 -0700 | [diff] [blame] | 598 | R.styleable.LocalePicker_selectionDividersDistance, defSelectionDividerDistance); |
cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 599 | |
| 600 | mMinHeight = attributesArray.getDimensionPixelSize( |
cretin45 | b64d5e7 | 2015-10-27 12:44:11 -0700 | [diff] [blame] | 601 | R.styleable.LocalePicker_internalMinHeight, SIZE_UNSPECIFIED); |
cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 602 | |
| 603 | mMaxHeight = attributesArray.getDimensionPixelSize( |
cretin45 | b64d5e7 | 2015-10-27 12:44:11 -0700 | [diff] [blame] | 604 | R.styleable.LocalePicker_internalMaxHeight, SIZE_UNSPECIFIED); |
cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 605 | if (mMinHeight != SIZE_UNSPECIFIED && mMaxHeight != SIZE_UNSPECIFIED |
| 606 | && mMinHeight > mMaxHeight) { |
| 607 | throw new IllegalArgumentException("minHeight > maxHeight"); |
| 608 | } |
| 609 | |
| 610 | mMinWidth = attributesArray.getDimensionPixelSize( |
cretin45 | b64d5e7 | 2015-10-27 12:44:11 -0700 | [diff] [blame] | 611 | R.styleable.LocalePicker_internalMinWidth, SIZE_UNSPECIFIED); |
cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 612 | |
| 613 | mMaxWidth = attributesArray.getDimensionPixelSize( |
cretin45 | b64d5e7 | 2015-10-27 12:44:11 -0700 | [diff] [blame] | 614 | R.styleable.LocalePicker_internalMaxWidth, SIZE_UNSPECIFIED); |
cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 615 | if (mMinWidth != SIZE_UNSPECIFIED && mMaxWidth != SIZE_UNSPECIFIED |
| 616 | && mMinWidth > mMaxWidth) { |
| 617 | throw new IllegalArgumentException("minWidth > maxWidth"); |
| 618 | } |
| 619 | |
| 620 | mComputeMaxWidth = (mMaxWidth == SIZE_UNSPECIFIED); |
| 621 | |
| 622 | mVirtualButtonPressedDrawable = attributesArray.getDrawable( |
cretin45 | b64d5e7 | 2015-10-27 12:44:11 -0700 | [diff] [blame] | 623 | R.styleable.LocalePicker_virtualButtonPressedDrawable); |
cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 624 | |
| 625 | attributesArray.recycle(); |
| 626 | |
| 627 | mPressedStateHelper = new PressedStateHelper(); |
| 628 | |
| 629 | // By default Linearlayout that we extend is not drawn. This is |
| 630 | // its draw() method is not called but dispatchDraw() is called |
| 631 | // directly (see ViewGroup.drawChild()). However, this class uses |
| 632 | // the fading edge effect implemented by View and we need our |
| 633 | // draw() method to be called. Therefore, we declare we will draw. |
| 634 | setWillNotDraw(!mHasSelectorWheel); |
| 635 | |
| 636 | LayoutInflater inflater = (LayoutInflater) getContext().getSystemService( |
| 637 | Context.LAYOUT_INFLATER_SERVICE); |
| 638 | inflater.inflate(layoutResId, this, true); |
| 639 | |
| 640 | OnClickListener onClickListener = new OnClickListener() { |
| 641 | public void onClick(View v) { |
| 642 | hideSoftInput(); |
| 643 | mInputText.clearFocus(); |
cretin45 | b64d5e7 | 2015-10-27 12:44:11 -0700 | [diff] [blame] | 644 | if (v.getId() == R.id.lp__increment) { |
cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 645 | changeValueByOne(true); |
| 646 | } else { |
| 647 | changeValueByOne(false); |
| 648 | } |
| 649 | } |
| 650 | }; |
| 651 | |
| 652 | OnLongClickListener onLongClickListener = new OnLongClickListener() { |
| 653 | public boolean onLongClick(View v) { |
| 654 | hideSoftInput(); |
| 655 | mInputText.clearFocus(); |
cretin45 | b64d5e7 | 2015-10-27 12:44:11 -0700 | [diff] [blame] | 656 | if (v.getId() == R.id.lp__increment) { |
cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 657 | postChangeCurrentByOneFromLongPress(true, 0); |
| 658 | } else { |
| 659 | postChangeCurrentByOneFromLongPress(false, 0); |
| 660 | } |
| 661 | return true; |
| 662 | } |
| 663 | }; |
| 664 | |
| 665 | // increment button |
| 666 | if (!mHasSelectorWheel) { |
cretin45 | b64d5e7 | 2015-10-27 12:44:11 -0700 | [diff] [blame] | 667 | mIncrementButton = (ImageButton) findViewById(R.id.lp__increment); |
cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 668 | mIncrementButton.setOnClickListener(onClickListener); |
| 669 | mIncrementButton.setOnLongClickListener(onLongClickListener); |
| 670 | } else { |
| 671 | mIncrementButton = null; |
| 672 | } |
| 673 | |
| 674 | // decrement button |
| 675 | if (!mHasSelectorWheel) { |
cretin45 | b64d5e7 | 2015-10-27 12:44:11 -0700 | [diff] [blame] | 676 | mDecrementButton = (ImageButton) findViewById(R.id.lp__decrement); |
cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 677 | mDecrementButton.setOnClickListener(onClickListener); |
| 678 | mDecrementButton.setOnLongClickListener(onLongClickListener); |
| 679 | } else { |
| 680 | mDecrementButton = null; |
| 681 | } |
| 682 | |
| 683 | // input text |
cretin45 | b64d5e7 | 2015-10-27 12:44:11 -0700 | [diff] [blame] | 684 | mInputText = (EditText) findViewById(R.id.localepicker_input); |
cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 685 | mInputText.setOnFocusChangeListener(new OnFocusChangeListener() { |
| 686 | public void onFocusChange(View v, boolean hasFocus) { |
| 687 | if (hasFocus) { |
| 688 | mInputText.selectAll(); |
| 689 | } else { |
| 690 | mInputText.setSelection(0, 0); |
| 691 | validateInputTextView(v); |
| 692 | } |
| 693 | } |
| 694 | }); |
| 695 | mInputText.setFilters(new InputFilter[] { |
| 696 | new InputTextFilter() |
| 697 | }); |
| 698 | |
| 699 | mInputText.setRawInputType(InputType.TYPE_CLASS_NUMBER); |
| 700 | mInputText.setImeOptions(EditorInfo.IME_ACTION_DONE); |
| 701 | |
| 702 | // initialize constants |
| 703 | ViewConfiguration configuration = ViewConfiguration.get(context); |
| 704 | mTouchSlop = configuration.getScaledTouchSlop(); |
| 705 | mMinimumFlingVelocity = configuration.getScaledMinimumFlingVelocity(); |
| 706 | mMaximumFlingVelocity = configuration.getScaledMaximumFlingVelocity() |
| 707 | / SELECTOR_MAX_FLING_VELOCITY_ADJUSTMENT; |
| 708 | mTextSize = (int) mInputText.getTextSize(); |
| 709 | |
| 710 | // create the selector wheel paint |
| 711 | Paint paint = new Paint(); |
| 712 | paint.setAntiAlias(true); |
| 713 | paint.setTextAlign(Align.CENTER); |
| 714 | paint.setTextSize(mTextSize); |
| 715 | paint.setTypeface(mInputText.getTypeface()); |
| 716 | ColorStateList colors = mInputText.getTextColors(); |
| 717 | int color = colors.getColorForState(ENABLED_STATE_SET, Color.WHITE); |
| 718 | paint.setColor(color); |
| 719 | mSelectorWheelPaint = paint; |
| 720 | |
| 721 | // create the fling and adjust scrollers |
| 722 | mFlingScroller = new Scroller(getContext(), null, true); |
| 723 | mAdjustScroller = new Scroller(getContext(), new DecelerateInterpolator(2.5f)); |
| 724 | |
| 725 | updateInputTextView(); |
| 726 | |
| 727 | // If not explicitly specified this view is important for accessibility. |
| 728 | if (getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { |
| 729 | setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); |
| 730 | } |
| 731 | } |
| 732 | |
| 733 | @Override |
| 734 | protected void onLayout(boolean changed, int left, int top, int right, int bottom) { |
| 735 | if (!mHasSelectorWheel) { |
| 736 | super.onLayout(changed, left, top, right, bottom); |
| 737 | return; |
| 738 | } |
| 739 | final int msrdWdth = getMeasuredWidth(); |
| 740 | final int msrdHght = getMeasuredHeight(); |
| 741 | |
| 742 | // Input text centered horizontally. |
| 743 | final int inptTxtMsrdWdth = mInputText.getMeasuredWidth(); |
| 744 | final int inptTxtMsrdHght = mInputText.getMeasuredHeight(); |
| 745 | final int inptTxtLeft = (msrdWdth - inptTxtMsrdWdth) / 2; |
| 746 | final int inptTxtTop = (msrdHght - inptTxtMsrdHght) / 2; |
| 747 | final int inptTxtRight = inptTxtLeft + inptTxtMsrdWdth; |
| 748 | final int inptTxtBottom = inptTxtTop + inptTxtMsrdHght; |
| 749 | mInputText.layout(inptTxtLeft, inptTxtTop, inptTxtRight, inptTxtBottom); |
| 750 | |
| 751 | if (changed) { |
| 752 | // need to do all this when we know our size |
| 753 | initializeSelectorWheel(); |
| 754 | initializeFadingEdges(); |
| 755 | mTopSelectionDividerTop = (getHeight() - mSelectionDividersDistance) / 2 |
| 756 | - mSelectionDividerHeight; |
| 757 | mBottomSelectionDividerBottom = mTopSelectionDividerTop + 2 * mSelectionDividerHeight |
| 758 | + mSelectionDividersDistance; |
| 759 | } |
| 760 | } |
| 761 | |
| 762 | @Override |
| 763 | protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { |
| 764 | if (!mHasSelectorWheel) { |
| 765 | super.onMeasure(widthMeasureSpec, heightMeasureSpec); |
| 766 | return; |
| 767 | } |
| 768 | // Try greedily to fit the max width and height. |
| 769 | final int newWidthMeasureSpec = makeMeasureSpec(widthMeasureSpec, mMaxWidth); |
| 770 | final int newHeightMeasureSpec = makeMeasureSpec(heightMeasureSpec, mMaxHeight); |
| 771 | super.onMeasure(newWidthMeasureSpec, newHeightMeasureSpec); |
| 772 | // Flag if we are measured with width or height less than the respective min. |
| 773 | final int widthSize = resolveSizeAndStateRespectingMinSize(mMinWidth, getMeasuredWidth(), |
| 774 | widthMeasureSpec); |
| 775 | final int heightSize = resolveSizeAndStateRespectingMinSize(mMinHeight, getMeasuredHeight(), |
| 776 | heightMeasureSpec); |
| 777 | setMeasuredDimension(widthSize, heightSize); |
| 778 | } |
| 779 | |
| 780 | /** |
| 781 | * Move to the final position of a scroller. Ensures to force finish the scroller |
| 782 | * and if it is not at its final position a scroll of the selector wheel is |
| 783 | * performed to fast forward to the final position. |
| 784 | * |
| 785 | * @param scroller The scroller to whose final position to get. |
| 786 | * @return True of the a move was performed, i.e. the scroller was not in final position. |
| 787 | */ |
| 788 | private boolean moveToFinalScrollerPosition(Scroller scroller) { |
| 789 | scroller.forceFinished(true); |
| 790 | int amountToScroll = scroller.getFinalY() - scroller.getCurrY(); |
| 791 | int futureScrollOffset = (mCurrentScrollOffset + amountToScroll) % mSelectorElementHeight; |
| 792 | int overshootAdjustment = mInitialScrollOffset - futureScrollOffset; |
| 793 | if (overshootAdjustment != 0) { |
| 794 | if (Math.abs(overshootAdjustment) > mSelectorElementHeight / 2) { |
| 795 | if (overshootAdjustment > 0) { |
| 796 | overshootAdjustment -= mSelectorElementHeight; |
| 797 | } else { |
| 798 | overshootAdjustment += mSelectorElementHeight; |
| 799 | } |
| 800 | } |
| 801 | amountToScroll += overshootAdjustment; |
| 802 | scrollBy(0, amountToScroll); |
| 803 | return true; |
| 804 | } |
| 805 | return false; |
| 806 | } |
| 807 | |
| 808 | @Override |
| 809 | public boolean onInterceptTouchEvent(MotionEvent event) { |
| 810 | if (!mHasSelectorWheel || !isEnabled()) { |
| 811 | return false; |
| 812 | } |
| 813 | final int action = event.getActionMasked(); |
| 814 | switch (action) { |
| 815 | case MotionEvent.ACTION_DOWN: { |
| 816 | removeAllCallbacks(); |
| 817 | mInputText.setVisibility(View.INVISIBLE); |
| 818 | mLastDownOrMoveEventY = mLastDownEventY = event.getY(); |
| 819 | mLastDownEventTime = event.getEventTime(); |
| 820 | mIngonreMoveEvents = false; |
| 821 | mShowSoftInputOnTap = false; |
| 822 | // Handle pressed state before any state change. |
| 823 | if (mLastDownEventY < mTopSelectionDividerTop) { |
| 824 | if (mScrollState == OnScrollListener.SCROLL_STATE_IDLE) { |
| 825 | mPressedStateHelper.buttonPressDelayed( |
| 826 | PressedStateHelper.BUTTON_DECREMENT); |
| 827 | } |
| 828 | } else if (mLastDownEventY > mBottomSelectionDividerBottom) { |
| 829 | if (mScrollState == OnScrollListener.SCROLL_STATE_IDLE) { |
| 830 | mPressedStateHelper.buttonPressDelayed( |
| 831 | PressedStateHelper.BUTTON_INCREMENT); |
| 832 | } |
| 833 | } |
| 834 | // Make sure we support flinging inside scrollables. |
| 835 | getParent().requestDisallowInterceptTouchEvent(true); |
| 836 | if (!mFlingScroller.isFinished()) { |
| 837 | mFlingScroller.forceFinished(true); |
| 838 | mAdjustScroller.forceFinished(true); |
| 839 | onScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); |
| 840 | } else if (!mAdjustScroller.isFinished()) { |
| 841 | mFlingScroller.forceFinished(true); |
| 842 | mAdjustScroller.forceFinished(true); |
| 843 | } else if (mLastDownEventY < mTopSelectionDividerTop) { |
| 844 | hideSoftInput(); |
| 845 | postChangeCurrentByOneFromLongPress( |
| 846 | false, ViewConfiguration.getLongPressTimeout()); |
| 847 | } else if (mLastDownEventY > mBottomSelectionDividerBottom) { |
| 848 | hideSoftInput(); |
| 849 | postChangeCurrentByOneFromLongPress( |
| 850 | true, ViewConfiguration.getLongPressTimeout()); |
| 851 | } else { |
| 852 | mShowSoftInputOnTap = true; |
| 853 | postBeginSoftInputOnLongPressCommand(); |
| 854 | } |
| 855 | return true; |
| 856 | } |
| 857 | } |
| 858 | return false; |
| 859 | } |
| 860 | |
| 861 | @Override |
| 862 | public boolean onTouchEvent(MotionEvent event) { |
| 863 | if (!isEnabled() || !mHasSelectorWheel) { |
| 864 | return false; |
| 865 | } |
| 866 | if (mVelocityTracker == null) { |
| 867 | mVelocityTracker = VelocityTracker.obtain(); |
| 868 | } |
| 869 | mVelocityTracker.addMovement(event); |
| 870 | int action = event.getActionMasked(); |
| 871 | switch (action) { |
| 872 | case MotionEvent.ACTION_MOVE: { |
| 873 | if (mIngonreMoveEvents) { |
| 874 | break; |
| 875 | } |
| 876 | float currentMoveY = event.getY(); |
| 877 | if (mScrollState != OnScrollListener.SCROLL_STATE_TOUCH_SCROLL) { |
| 878 | int deltaDownY = (int) Math.abs(currentMoveY - mLastDownEventY); |
| 879 | if (deltaDownY > mTouchSlop) { |
| 880 | removeAllCallbacks(); |
| 881 | onScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); |
| 882 | } |
| 883 | } else { |
| 884 | int deltaMoveY = (int) ((currentMoveY - mLastDownOrMoveEventY)); |
| 885 | scrollBy(0, deltaMoveY); |
| 886 | invalidate(); |
| 887 | } |
| 888 | mLastDownOrMoveEventY = currentMoveY; |
| 889 | } break; |
| 890 | case MotionEvent.ACTION_UP: { |
| 891 | removeBeginSoftInputCommand(); |
| 892 | removeChangeCurrentByOneFromLongPress(); |
| 893 | mPressedStateHelper.cancel(); |
| 894 | VelocityTracker velocityTracker = mVelocityTracker; |
| 895 | velocityTracker.computeCurrentVelocity(1000, mMaximumFlingVelocity); |
| 896 | int initialVelocity = (int) velocityTracker.getYVelocity(); |
| 897 | if (Math.abs(initialVelocity) > mMinimumFlingVelocity) { |
| 898 | fling(initialVelocity); |
| 899 | onScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); |
| 900 | } else { |
| 901 | int eventY = (int) event.getY(); |
| 902 | int deltaMoveY = (int) Math.abs(eventY - mLastDownEventY); |
| 903 | long deltaTime = event.getEventTime() - mLastDownEventTime; |
| 904 | if (deltaMoveY <= mTouchSlop && deltaTime < ViewConfiguration.getTapTimeout()) { |
| 905 | if (mShowSoftInputOnTap) { |
| 906 | mShowSoftInputOnTap = false; |
| 907 | showSoftInput(); |
| 908 | } else { |
| 909 | int selectorIndexOffset = (eventY / mSelectorElementHeight) |
cretin45 | b64d5e7 | 2015-10-27 12:44:11 -0700 | [diff] [blame] | 910 | - sSelectorMiddleItemIndex; |
cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 911 | if (selectorIndexOffset > 0) { |
| 912 | changeValueByOne(true); |
| 913 | mPressedStateHelper.buttonTapped( |
| 914 | PressedStateHelper.BUTTON_INCREMENT); |
| 915 | } else if (selectorIndexOffset < 0) { |
| 916 | changeValueByOne(false); |
| 917 | mPressedStateHelper.buttonTapped( |
| 918 | PressedStateHelper.BUTTON_DECREMENT); |
| 919 | } |
| 920 | } |
| 921 | } else { |
| 922 | ensureScrollWheelAdjusted(); |
| 923 | } |
| 924 | onScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); |
| 925 | } |
| 926 | mVelocityTracker.recycle(); |
| 927 | mVelocityTracker = null; |
| 928 | } break; |
| 929 | } |
| 930 | return true; |
| 931 | } |
| 932 | |
| 933 | @Override |
| 934 | public boolean dispatchTouchEvent(MotionEvent event) { |
| 935 | final int action = event.getActionMasked(); |
| 936 | switch (action) { |
| 937 | case MotionEvent.ACTION_CANCEL: |
| 938 | case MotionEvent.ACTION_UP: |
| 939 | removeAllCallbacks(); |
| 940 | break; |
| 941 | } |
| 942 | return super.dispatchTouchEvent(event); |
| 943 | } |
| 944 | |
| 945 | @Override |
| 946 | public boolean dispatchKeyEvent(KeyEvent event) { |
| 947 | final int keyCode = event.getKeyCode(); |
| 948 | switch (keyCode) { |
| 949 | case KeyEvent.KEYCODE_DPAD_CENTER: |
| 950 | case KeyEvent.KEYCODE_ENTER: |
| 951 | removeAllCallbacks(); |
| 952 | break; |
| 953 | case KeyEvent.KEYCODE_DPAD_DOWN: |
| 954 | case KeyEvent.KEYCODE_DPAD_UP: |
| 955 | if (!mHasSelectorWheel) { |
| 956 | break; |
| 957 | } |
| 958 | switch (event.getAction()) { |
| 959 | case KeyEvent.ACTION_DOWN: |
| 960 | if (mWrapSelectorWheel || (keyCode == KeyEvent.KEYCODE_DPAD_DOWN) |
| 961 | ? getValue() < getMaxValue() : getValue() > getMinValue()) { |
| 962 | requestFocus(); |
| 963 | mLastHandledDownDpadKeyCode = keyCode; |
| 964 | removeAllCallbacks(); |
| 965 | if (mFlingScroller.isFinished()) { |
| 966 | changeValueByOne(keyCode == KeyEvent.KEYCODE_DPAD_DOWN); |
| 967 | } |
| 968 | return true; |
| 969 | } |
| 970 | break; |
| 971 | case KeyEvent.ACTION_UP: |
| 972 | if (mLastHandledDownDpadKeyCode == keyCode) { |
| 973 | mLastHandledDownDpadKeyCode = -1; |
| 974 | return true; |
| 975 | } |
| 976 | break; |
| 977 | } |
| 978 | } |
| 979 | return super.dispatchKeyEvent(event); |
| 980 | } |
| 981 | |
| 982 | @Override |
| 983 | public boolean dispatchTrackballEvent(MotionEvent event) { |
| 984 | final int action = event.getActionMasked(); |
| 985 | switch (action) { |
| 986 | case MotionEvent.ACTION_CANCEL: |
| 987 | case MotionEvent.ACTION_UP: |
| 988 | removeAllCallbacks(); |
| 989 | break; |
| 990 | } |
| 991 | return super.dispatchTrackballEvent(event); |
| 992 | } |
| 993 | |
| 994 | @Override |
| 995 | protected boolean dispatchHoverEvent(MotionEvent event) { |
| 996 | if (!mHasSelectorWheel) { |
| 997 | return super.dispatchHoverEvent(event); |
| 998 | } |
| 999 | if (AccessibilityManager.getInstance(mContext).isEnabled()) { |
| 1000 | final int eventY = (int) event.getY(); |
| 1001 | final int hoveredVirtualViewId; |
| 1002 | if (eventY < mTopSelectionDividerTop) { |
| 1003 | hoveredVirtualViewId = AccessibilityNodeProviderImpl.VIRTUAL_VIEW_ID_DECREMENT; |
| 1004 | } else if (eventY > mBottomSelectionDividerBottom) { |
| 1005 | hoveredVirtualViewId = AccessibilityNodeProviderImpl.VIRTUAL_VIEW_ID_INCREMENT; |
| 1006 | } else { |
| 1007 | hoveredVirtualViewId = AccessibilityNodeProviderImpl.VIRTUAL_VIEW_ID_INPUT; |
| 1008 | } |
| 1009 | final int action = event.getActionMasked(); |
| 1010 | AccessibilityNodeProviderImpl provider = |
| 1011 | (AccessibilityNodeProviderImpl) getAccessibilityNodeProvider(); |
| 1012 | switch (action) { |
| 1013 | case MotionEvent.ACTION_HOVER_ENTER: { |
| 1014 | provider.sendAccessibilityEventForVirtualView(hoveredVirtualViewId, |
| 1015 | AccessibilityEvent.TYPE_VIEW_HOVER_ENTER); |
| 1016 | mLastHoveredChildVirtualViewId = hoveredVirtualViewId; |
| 1017 | provider.performAction(hoveredVirtualViewId, |
| 1018 | AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS, null); |
| 1019 | } break; |
| 1020 | case MotionEvent.ACTION_HOVER_MOVE: { |
| 1021 | if (mLastHoveredChildVirtualViewId != hoveredVirtualViewId |
| 1022 | && mLastHoveredChildVirtualViewId != View.NO_ID) { |
| 1023 | provider.sendAccessibilityEventForVirtualView( |
| 1024 | mLastHoveredChildVirtualViewId, |
| 1025 | AccessibilityEvent.TYPE_VIEW_HOVER_EXIT); |
| 1026 | provider.sendAccessibilityEventForVirtualView(hoveredVirtualViewId, |
| 1027 | AccessibilityEvent.TYPE_VIEW_HOVER_ENTER); |
| 1028 | mLastHoveredChildVirtualViewId = hoveredVirtualViewId; |
| 1029 | provider.performAction(hoveredVirtualViewId, |
| 1030 | AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS, null); |
| 1031 | } |
| 1032 | } break; |
| 1033 | case MotionEvent.ACTION_HOVER_EXIT: { |
| 1034 | provider.sendAccessibilityEventForVirtualView(hoveredVirtualViewId, |
| 1035 | AccessibilityEvent.TYPE_VIEW_HOVER_EXIT); |
| 1036 | mLastHoveredChildVirtualViewId = View.NO_ID; |
| 1037 | } break; |
| 1038 | } |
| 1039 | } |
| 1040 | return false; |
| 1041 | } |
| 1042 | |
| 1043 | @Override |
| 1044 | public void computeScroll() { |
| 1045 | Scroller scroller = mFlingScroller; |
| 1046 | if (scroller.isFinished()) { |
| 1047 | scroller = mAdjustScroller; |
| 1048 | if (scroller.isFinished()) { |
| 1049 | return; |
| 1050 | } |
| 1051 | } |
| 1052 | scroller.computeScrollOffset(); |
| 1053 | int currentScrollerY = scroller.getCurrY(); |
| 1054 | if (mPreviousScrollerY == 0) { |
| 1055 | mPreviousScrollerY = scroller.getStartY(); |
| 1056 | } |
| 1057 | scrollBy(0, currentScrollerY - mPreviousScrollerY); |
| 1058 | mPreviousScrollerY = currentScrollerY; |
| 1059 | if (scroller.isFinished()) { |
| 1060 | onScrollerFinished(scroller); |
| 1061 | } else { |
| 1062 | invalidate(); |
| 1063 | } |
| 1064 | } |
| 1065 | |
| 1066 | @Override |
| 1067 | public void setEnabled(boolean enabled) { |
| 1068 | super.setEnabled(enabled); |
| 1069 | if (!mHasSelectorWheel) { |
| 1070 | mIncrementButton.setEnabled(enabled); |
| 1071 | } |
| 1072 | if (!mHasSelectorWheel) { |
| 1073 | mDecrementButton.setEnabled(enabled); |
| 1074 | } |
| 1075 | mInputText.setEnabled(enabled); |
| 1076 | } |
| 1077 | |
| 1078 | @Override |
| 1079 | public void scrollBy(int x, int y) { |
| 1080 | int[] selectorIndices = mSelectorIndices; |
| 1081 | if (!mWrapSelectorWheel && y > 0 |
cretin45 | b64d5e7 | 2015-10-27 12:44:11 -0700 | [diff] [blame] | 1082 | && selectorIndices[sSelectorMiddleItemIndex] <= mMinValue) { |
cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 1083 | mCurrentScrollOffset = mInitialScrollOffset; |
| 1084 | return; |
| 1085 | } |
| 1086 | if (!mWrapSelectorWheel && y < 0 |
cretin45 | b64d5e7 | 2015-10-27 12:44:11 -0700 | [diff] [blame] | 1087 | && selectorIndices[sSelectorMiddleItemIndex] >= mMaxValue) { |
cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 1088 | mCurrentScrollOffset = mInitialScrollOffset; |
| 1089 | return; |
| 1090 | } |
| 1091 | mCurrentScrollOffset += y; |
| 1092 | while (mCurrentScrollOffset - mInitialScrollOffset > mSelectorTextGapHeight) { |
| 1093 | mCurrentScrollOffset -= mSelectorElementHeight; |
| 1094 | decrementSelectorIndices(selectorIndices); |
cretin45 | b64d5e7 | 2015-10-27 12:44:11 -0700 | [diff] [blame] | 1095 | setValueInternal(selectorIndices[sSelectorMiddleItemIndex], true); |
| 1096 | if (!mWrapSelectorWheel && selectorIndices[sSelectorMiddleItemIndex] <= mMinValue) { |
cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 1097 | mCurrentScrollOffset = mInitialScrollOffset; |
| 1098 | } |
| 1099 | } |
| 1100 | while (mCurrentScrollOffset - mInitialScrollOffset < -mSelectorTextGapHeight) { |
| 1101 | mCurrentScrollOffset += mSelectorElementHeight; |
| 1102 | incrementSelectorIndices(selectorIndices); |
cretin45 | b64d5e7 | 2015-10-27 12:44:11 -0700 | [diff] [blame] | 1103 | setValueInternal(selectorIndices[sSelectorMiddleItemIndex], true); |
| 1104 | if (!mWrapSelectorWheel && selectorIndices[sSelectorMiddleItemIndex] >= mMaxValue) { |
cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 1105 | mCurrentScrollOffset = mInitialScrollOffset; |
| 1106 | } |
| 1107 | } |
| 1108 | } |
| 1109 | |
| 1110 | @Override |
| 1111 | public int getSolidColor() { |
| 1112 | return mSolidColor; |
| 1113 | } |
| 1114 | |
| 1115 | /** |
| 1116 | * Sets the listener to be notified on change of the current value. |
| 1117 | * |
| 1118 | * @param onValueChangedListener The listener. |
| 1119 | */ |
| 1120 | public void setOnValueChangedListener(OnValueChangeListener onValueChangedListener) { |
| 1121 | mOnValueChangeListener = onValueChangedListener; |
| 1122 | } |
| 1123 | |
| 1124 | /** |
| 1125 | * Set listener to be notified for scroll state changes. |
| 1126 | * |
| 1127 | * @param onScrollListener The listener. |
| 1128 | */ |
| 1129 | public void setOnScrollListener(OnScrollListener onScrollListener) { |
| 1130 | mOnScrollListener = onScrollListener; |
| 1131 | } |
| 1132 | |
| 1133 | /** |
| 1134 | * Set the formatter to be used for formatting the current value. |
| 1135 | * <p> |
| 1136 | * Note: If you have provided alternative values for the values this |
| 1137 | * formatter is never invoked. |
| 1138 | * </p> |
| 1139 | * |
| 1140 | * @param formatter The formatter object. If formatter is <code>null</code>, |
| 1141 | * {@link String#valueOf(int)} will be used. |
| 1142 | *@see #setDisplayedValues(String[]) |
| 1143 | */ |
| 1144 | public void setFormatter(Formatter formatter) { |
| 1145 | if (formatter == mFormatter) { |
| 1146 | return; |
| 1147 | } |
| 1148 | mFormatter = formatter; |
| 1149 | initializeSelectorWheelIndices(); |
| 1150 | updateInputTextView(); |
| 1151 | } |
| 1152 | |
| 1153 | /** |
| 1154 | * Set the current value for the number picker. |
| 1155 | * <p> |
| 1156 | * If the argument is less than the {@link LocalePicker#getMinValue()} and |
| 1157 | * {@link LocalePicker#getWrapSelectorWheel()} is <code>false</code> the |
| 1158 | * current value is set to the {@link LocalePicker#getMinValue()} value. |
| 1159 | * </p> |
| 1160 | * <p> |
| 1161 | * If the argument is less than the {@link LocalePicker#getMinValue()} and |
| 1162 | * {@link LocalePicker#getWrapSelectorWheel()} is <code>true</code> the |
| 1163 | * current value is set to the {@link LocalePicker#getMaxValue()} value. |
| 1164 | * </p> |
| 1165 | * <p> |
| 1166 | * If the argument is less than the {@link LocalePicker#getMaxValue()} and |
| 1167 | * {@link LocalePicker#getWrapSelectorWheel()} is <code>false</code> the |
| 1168 | * current value is set to the {@link LocalePicker#getMaxValue()} value. |
| 1169 | * </p> |
| 1170 | * <p> |
| 1171 | * If the argument is less than the {@link LocalePicker#getMaxValue()} and |
| 1172 | * {@link LocalePicker#getWrapSelectorWheel()} is <code>true</code> the |
| 1173 | * current value is set to the {@link LocalePicker#getMinValue()} value. |
| 1174 | * </p> |
| 1175 | * |
| 1176 | * @param value The current value. |
| 1177 | * @see #setWrapSelectorWheel(boolean) |
| 1178 | * @see #setMinValue(int) |
| 1179 | * @see #setMaxValue(int) |
| 1180 | */ |
| 1181 | public void setValue(int value) { |
| 1182 | setValueInternal(value, false); |
| 1183 | } |
| 1184 | |
| 1185 | /** |
| 1186 | * Shows the soft input for its input text. |
| 1187 | */ |
| 1188 | private void showSoftInput() { |
| 1189 | InputMethodManager inputMethodManager = InputMethodManager.peekInstance(); |
| 1190 | if (inputMethodManager != null) { |
| 1191 | if (mHasSelectorWheel) { |
| 1192 | mInputText.setVisibility(View.VISIBLE); |
| 1193 | } |
| 1194 | mInputText.requestFocus(); |
| 1195 | inputMethodManager.showSoftInput(mInputText, 0); |
| 1196 | } |
| 1197 | } |
| 1198 | |
| 1199 | /** |
| 1200 | * Hides the soft input if it is active for the input text. |
| 1201 | */ |
| 1202 | private void hideSoftInput() { |
| 1203 | InputMethodManager inputMethodManager = InputMethodManager.peekInstance(); |
| 1204 | if (inputMethodManager != null && inputMethodManager.isActive(mInputText)) { |
| 1205 | inputMethodManager.hideSoftInputFromWindow(getWindowToken(), 0); |
| 1206 | if (mHasSelectorWheel) { |
| 1207 | mInputText.setVisibility(View.INVISIBLE); |
| 1208 | } |
| 1209 | } |
| 1210 | } |
| 1211 | |
| 1212 | /** |
| 1213 | * Computes the max width if no such specified as an attribute. |
| 1214 | */ |
| 1215 | private void tryComputeMaxWidth() { |
| 1216 | if (!mComputeMaxWidth) { |
| 1217 | return; |
| 1218 | } |
| 1219 | int maxTextWidth = 0; |
| 1220 | if (mDisplayedValues == null) { |
| 1221 | float maxDigitWidth = 0; |
| 1222 | for (int i = 0; i <= 9; i++) { |
| 1223 | final float digitWidth = mSelectorWheelPaint.measureText(formatNumberWithLocale(i)); |
| 1224 | if (digitWidth > maxDigitWidth) { |
| 1225 | maxDigitWidth = digitWidth; |
| 1226 | } |
| 1227 | } |
| 1228 | int numberOfDigits = 0; |
| 1229 | int current = mMaxValue; |
| 1230 | while (current > 0) { |
| 1231 | numberOfDigits++; |
| 1232 | current = current / 10; |
| 1233 | } |
| 1234 | maxTextWidth = (int) (numberOfDigits * maxDigitWidth); |
| 1235 | } else { |
| 1236 | final int valueCount = mDisplayedValues.length; |
| 1237 | for (int i = 0; i < valueCount; i++) { |
| 1238 | final float textWidth = mSelectorWheelPaint.measureText(mDisplayedValues[i]); |
| 1239 | if (textWidth > maxTextWidth) { |
| 1240 | maxTextWidth = (int) textWidth; |
| 1241 | } |
| 1242 | } |
| 1243 | } |
| 1244 | maxTextWidth += mInputText.getPaddingLeft() + mInputText.getPaddingRight(); |
| 1245 | if (mMaxWidth != maxTextWidth) { |
| 1246 | if (maxTextWidth > mMinWidth) { |
| 1247 | mMaxWidth = maxTextWidth; |
| 1248 | } else { |
| 1249 | mMaxWidth = mMinWidth; |
| 1250 | } |
| 1251 | invalidate(); |
| 1252 | } |
| 1253 | } |
| 1254 | |
| 1255 | /** |
| 1256 | * Gets whether the selector wheel wraps when reaching the min/max value. |
| 1257 | * |
| 1258 | * @return True if the selector wheel wraps. |
| 1259 | * |
| 1260 | * @see #getMinValue() |
| 1261 | * @see #getMaxValue() |
| 1262 | */ |
| 1263 | public boolean getWrapSelectorWheel() { |
| 1264 | return mWrapSelectorWheel; |
| 1265 | } |
| 1266 | |
| 1267 | /** |
| 1268 | * Sets whether the selector wheel shown during flinging/scrolling should |
| 1269 | * wrap around the {@link LocalePicker#getMinValue()} and |
| 1270 | * {@link LocalePicker#getMaxValue()} values. |
| 1271 | * <p> |
| 1272 | * By default if the range (max - min) is more than the number of items shown |
| 1273 | * on the selector wheel the selector wheel wrapping is enabled. |
| 1274 | * </p> |
| 1275 | * <p> |
| 1276 | * <strong>Note:</strong> If the number of items, i.e. the range ( |
| 1277 | * {@link #getMaxValue()} - {@link #getMinValue()}) is less than |
| 1278 | * the number of items shown on the selector wheel, the selector wheel will |
| 1279 | * not wrap. Hence, in such a case calling this method is a NOP. |
| 1280 | * </p> |
| 1281 | * |
| 1282 | * @param wrapSelectorWheel Whether to wrap. |
| 1283 | */ |
| 1284 | public void setWrapSelectorWheel(boolean wrapSelectorWheel) { |
| 1285 | final boolean wrappingAllowed = (mMaxValue - mMinValue) >= mSelectorIndices.length; |
| 1286 | if ((!wrapSelectorWheel || wrappingAllowed) && wrapSelectorWheel != mWrapSelectorWheel) { |
| 1287 | mWrapSelectorWheel = wrapSelectorWheel; |
| 1288 | } |
| 1289 | } |
| 1290 | |
| 1291 | /** |
| 1292 | * Sets the speed at which the numbers be incremented and decremented when |
| 1293 | * the up and down buttons are long pressed respectively. |
| 1294 | * <p> |
| 1295 | * The default value is 300 ms. |
| 1296 | * </p> |
| 1297 | * |
| 1298 | * @param intervalMillis The speed (in milliseconds) at which the numbers |
| 1299 | * will be incremented and decremented. |
| 1300 | */ |
| 1301 | public void setOnLongPressUpdateInterval(long intervalMillis) { |
| 1302 | mLongPressUpdateInterval = intervalMillis; |
| 1303 | } |
| 1304 | |
| 1305 | /** |
| 1306 | * Returns the value of the picker. |
| 1307 | * |
| 1308 | * @return The value. |
| 1309 | */ |
| 1310 | public int getValue() { |
| 1311 | return mValue; |
| 1312 | } |
| 1313 | |
| 1314 | /** |
| 1315 | * Returns the min value of the picker. |
| 1316 | * |
| 1317 | * @return The min value |
| 1318 | */ |
| 1319 | public int getMinValue() { |
| 1320 | return mMinValue; |
| 1321 | } |
| 1322 | |
| 1323 | /** |
| 1324 | * Sets the min value of the picker. |
| 1325 | * |
| 1326 | * @param minValue The min value inclusive. |
| 1327 | * |
| 1328 | * <strong>Note:</strong> The length of the displayed values array |
| 1329 | * set via {@link #setDisplayedValues(String[])} must be equal to the |
| 1330 | * range of selectable numbers which is equal to |
| 1331 | * {@link #getMaxValue()} - {@link #getMinValue()} + 1. |
| 1332 | */ |
| 1333 | public void setMinValue(int minValue) { |
| 1334 | if (mMinValue == minValue) { |
| 1335 | return; |
| 1336 | } |
| 1337 | if (minValue < 0) { |
| 1338 | throw new IllegalArgumentException("minValue must be >= 0"); |
| 1339 | } |
| 1340 | mMinValue = minValue; |
| 1341 | if (mMinValue > mValue) { |
| 1342 | mValue = mMinValue; |
| 1343 | } |
| 1344 | boolean wrapSelectorWheel = mMaxValue - mMinValue > mSelectorIndices.length; |
| 1345 | setWrapSelectorWheel(wrapSelectorWheel); |
| 1346 | initializeSelectorWheelIndices(); |
| 1347 | updateInputTextView(); |
| 1348 | tryComputeMaxWidth(); |
| 1349 | invalidate(); |
| 1350 | } |
| 1351 | |
| 1352 | /** |
| 1353 | * Returns the max value of the picker. |
| 1354 | * |
| 1355 | * @return The max value. |
| 1356 | */ |
| 1357 | public int getMaxValue() { |
| 1358 | return mMaxValue; |
| 1359 | } |
| 1360 | |
| 1361 | /** |
| 1362 | * Sets the max value of the picker. |
| 1363 | * |
| 1364 | * @param maxValue The max value inclusive. |
| 1365 | * |
| 1366 | * <strong>Note:</strong> The length of the displayed values array |
| 1367 | * set via {@link #setDisplayedValues(String[])} must be equal to the |
| 1368 | * range of selectable numbers which is equal to |
| 1369 | * {@link #getMaxValue()} - {@link #getMinValue()} + 1. |
| 1370 | */ |
| 1371 | public void setMaxValue(int maxValue) { |
| 1372 | if (mMaxValue == maxValue) { |
| 1373 | return; |
| 1374 | } |
| 1375 | if (maxValue < 0) { |
| 1376 | throw new IllegalArgumentException("maxValue must be >= 0"); |
| 1377 | } |
| 1378 | mMaxValue = maxValue; |
| 1379 | if (mMaxValue < mValue) { |
| 1380 | mValue = mMaxValue; |
| 1381 | } |
| 1382 | boolean wrapSelectorWheel = mMaxValue - mMinValue > mSelectorIndices.length; |
| 1383 | setWrapSelectorWheel(wrapSelectorWheel); |
| 1384 | initializeSelectorWheelIndices(); |
| 1385 | updateInputTextView(); |
| 1386 | tryComputeMaxWidth(); |
| 1387 | invalidate(); |
| 1388 | } |
| 1389 | |
| 1390 | /** |
| 1391 | * Gets the values to be displayed instead of string values. |
| 1392 | * |
| 1393 | * @return The displayed values. |
| 1394 | */ |
| 1395 | public String[] getDisplayedValues() { |
| 1396 | return mDisplayedValues; |
| 1397 | } |
| 1398 | |
| 1399 | /** |
| 1400 | * Sets the values to be displayed. |
| 1401 | * |
| 1402 | * @param displayedValues The displayed values. |
| 1403 | * |
| 1404 | * <strong>Note:</strong> The length of the displayed values array |
| 1405 | * must be equal to the range of selectable numbers which is equal to |
| 1406 | * {@link #getMaxValue()} - {@link #getMinValue()} + 1. |
| 1407 | */ |
| 1408 | public void setDisplayedValues(String[] displayedValues) { |
| 1409 | if (mDisplayedValues == displayedValues) { |
| 1410 | return; |
| 1411 | } |
| 1412 | mDisplayedValues = displayedValues; |
| 1413 | if (mDisplayedValues != null) { |
| 1414 | // Allow text entry rather than strictly numeric entry. |
| 1415 | mInputText.setRawInputType(InputType.TYPE_CLASS_TEXT |
| 1416 | | InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS); |
| 1417 | } else { |
| 1418 | mInputText.setRawInputType(InputType.TYPE_CLASS_NUMBER); |
| 1419 | } |
| 1420 | updateInputTextView(); |
| 1421 | initializeSelectorWheelIndices(); |
| 1422 | tryComputeMaxWidth(); |
| 1423 | } |
| 1424 | |
| 1425 | @Override |
| 1426 | protected float getTopFadingEdgeStrength() { |
| 1427 | return TOP_AND_BOTTOM_FADING_EDGE_STRENGTH; |
| 1428 | } |
| 1429 | |
| 1430 | @Override |
| 1431 | protected float getBottomFadingEdgeStrength() { |
| 1432 | return TOP_AND_BOTTOM_FADING_EDGE_STRENGTH; |
| 1433 | } |
| 1434 | |
| 1435 | @Override |
| 1436 | protected void onDetachedFromWindow() { |
| 1437 | removeAllCallbacks(); |
| 1438 | } |
| 1439 | |
| 1440 | @Override |
| 1441 | protected void onDraw(Canvas canvas) { |
| 1442 | if (!mHasSelectorWheel) { |
| 1443 | super.onDraw(canvas); |
| 1444 | return; |
| 1445 | } |
| 1446 | float x = (mRight - mLeft) / 2; |
| 1447 | float y = mCurrentScrollOffset; |
| 1448 | |
| 1449 | // draw the virtual buttons pressed state if needed |
| 1450 | if (mVirtualButtonPressedDrawable != null |
| 1451 | && mScrollState == OnScrollListener.SCROLL_STATE_IDLE) { |
| 1452 | if (mDecrementVirtualButtonPressed) { |
| 1453 | mVirtualButtonPressedDrawable.setState(PRESSED_STATE_SET); |
| 1454 | mVirtualButtonPressedDrawable.setBounds(0, 0, mRight, mTopSelectionDividerTop); |
| 1455 | mVirtualButtonPressedDrawable.draw(canvas); |
| 1456 | } |
| 1457 | if (mIncrementVirtualButtonPressed) { |
| 1458 | mVirtualButtonPressedDrawable.setState(PRESSED_STATE_SET); |
| 1459 | mVirtualButtonPressedDrawable.setBounds(0, mBottomSelectionDividerBottom, mRight, |
| 1460 | mBottom); |
| 1461 | mVirtualButtonPressedDrawable.draw(canvas); |
| 1462 | } |
| 1463 | } |
| 1464 | |
| 1465 | // draw the selector wheel |
| 1466 | int[] selectorIndices = mSelectorIndices; |
| 1467 | for (int i = 0; i < selectorIndices.length; i++) { |
| 1468 | int selectorIndex = selectorIndices[i]; |
| 1469 | String scrollSelectorValue = mSelectorIndexToStringCache.get(selectorIndex); |
| 1470 | // Do not draw the middle item if input is visible since the input |
| 1471 | // is shown only if the wheel is static and it covers the middle |
| 1472 | // item. Otherwise, if the user starts editing the text via the |
| 1473 | // IME he may see a dimmed version of the old value intermixed |
| 1474 | // with the new one. |
cretin45 | b64d5e7 | 2015-10-27 12:44:11 -0700 | [diff] [blame] | 1475 | if (i != sSelectorMiddleItemIndex || mInputText.getVisibility() != VISIBLE) { |
cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 1476 | canvas.drawText(scrollSelectorValue, x, y, mSelectorWheelPaint); |
| 1477 | } |
| 1478 | y += mSelectorElementHeight; |
| 1479 | } |
| 1480 | |
| 1481 | // draw the selection dividers |
| 1482 | if (mSelectionDivider != null) { |
| 1483 | // draw the top divider |
| 1484 | int topOfTopDivider = mTopSelectionDividerTop; |
| 1485 | int bottomOfTopDivider = topOfTopDivider + mSelectionDividerHeight; |
| 1486 | mSelectionDivider.setBounds(0, topOfTopDivider, mRight, bottomOfTopDivider); |
| 1487 | mSelectionDivider.draw(canvas); |
| 1488 | |
| 1489 | // draw the bottom divider |
| 1490 | int bottomOfBottomDivider = mBottomSelectionDividerBottom; |
| 1491 | int topOfBottomDivider = bottomOfBottomDivider - mSelectionDividerHeight; |
| 1492 | mSelectionDivider.setBounds(0, topOfBottomDivider, mRight, bottomOfBottomDivider); |
| 1493 | mSelectionDivider.draw(canvas); |
| 1494 | } |
| 1495 | } |
| 1496 | |
| 1497 | @Override |
| 1498 | public void onInitializeAccessibilityEvent(AccessibilityEvent event) { |
| 1499 | super.onInitializeAccessibilityEvent(event); |
| 1500 | event.setClassName(LocalePicker.class.getName()); |
| 1501 | event.setScrollable(true); |
| 1502 | event.setScrollY((mMinValue + mValue) * mSelectorElementHeight); |
| 1503 | event.setMaxScrollY((mMaxValue - mMinValue) * mSelectorElementHeight); |
| 1504 | } |
| 1505 | |
| 1506 | @Override |
| 1507 | public AccessibilityNodeProvider getAccessibilityNodeProvider() { |
| 1508 | if (!mHasSelectorWheel) { |
| 1509 | return super.getAccessibilityNodeProvider(); |
| 1510 | } |
| 1511 | if (mAccessibilityNodeProvider == null) { |
| 1512 | mAccessibilityNodeProvider = new AccessibilityNodeProviderImpl(); |
| 1513 | } |
| 1514 | return mAccessibilityNodeProvider; |
| 1515 | } |
| 1516 | |
| 1517 | /** |
| 1518 | * Makes a measure spec that tries greedily to use the max value. |
| 1519 | * |
| 1520 | * @param measureSpec The measure spec. |
| 1521 | * @param maxSize The max value for the size. |
| 1522 | * @return A measure spec greedily imposing the max size. |
| 1523 | */ |
| 1524 | private int makeMeasureSpec(int measureSpec, int maxSize) { |
| 1525 | if (maxSize == SIZE_UNSPECIFIED) { |
| 1526 | return measureSpec; |
| 1527 | } |
| 1528 | final int size = MeasureSpec.getSize(measureSpec); |
| 1529 | final int mode = MeasureSpec.getMode(measureSpec); |
| 1530 | switch (mode) { |
| 1531 | case MeasureSpec.EXACTLY: |
| 1532 | return measureSpec; |
| 1533 | case MeasureSpec.AT_MOST: |
| 1534 | return MeasureSpec.makeMeasureSpec(Math.min(size, maxSize), MeasureSpec.EXACTLY); |
| 1535 | case MeasureSpec.UNSPECIFIED: |
| 1536 | return MeasureSpec.makeMeasureSpec(maxSize, MeasureSpec.EXACTLY); |
| 1537 | default: |
| 1538 | throw new IllegalArgumentException("Unknown measure mode: " + mode); |
| 1539 | } |
| 1540 | } |
| 1541 | |
| 1542 | /** |
| 1543 | * Utility to reconcile a desired size and state, with constraints imposed |
| 1544 | * by a MeasureSpec. Tries to respect the min size, unless a different size |
| 1545 | * is imposed by the constraints. |
| 1546 | * |
| 1547 | * @param minSize The minimal desired size. |
| 1548 | * @param measuredSize The currently measured size. |
| 1549 | * @param measureSpec The current measure spec. |
| 1550 | * @return The resolved size and state. |
| 1551 | */ |
| 1552 | private int resolveSizeAndStateRespectingMinSize( |
| 1553 | int minSize, int measuredSize, int measureSpec) { |
| 1554 | if (minSize != SIZE_UNSPECIFIED) { |
| 1555 | final int desiredWidth = Math.max(minSize, measuredSize); |
| 1556 | return resolveSizeAndState(desiredWidth, measureSpec, 0); |
| 1557 | } else { |
| 1558 | return measuredSize; |
| 1559 | } |
| 1560 | } |
| 1561 | |
| 1562 | /** |
| 1563 | * Resets the selector indices and clear the cached string representation of |
| 1564 | * these indices. |
| 1565 | */ |
| 1566 | private void initializeSelectorWheelIndices() { |
| 1567 | mSelectorIndexToStringCache.clear(); |
| 1568 | int[] selectorIndices = mSelectorIndices; |
| 1569 | int current = getValue(); |
| 1570 | for (int i = 0; i < mSelectorIndices.length; i++) { |
cretin45 | b64d5e7 | 2015-10-27 12:44:11 -0700 | [diff] [blame] | 1571 | int selectorIndex = current + (i - sSelectorMiddleItemIndex); |
cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 1572 | if (mWrapSelectorWheel) { |
| 1573 | selectorIndex = getWrappedSelectorIndex(selectorIndex); |
| 1574 | } |
| 1575 | selectorIndices[i] = selectorIndex; |
| 1576 | ensureCachedScrollSelectorValue(selectorIndices[i]); |
| 1577 | } |
| 1578 | } |
| 1579 | |
| 1580 | /** |
| 1581 | * Sets the current value of this NumberPicker. |
| 1582 | * |
| 1583 | * @param current The new value of the NumberPicker. |
| 1584 | * @param notifyChange Whether to notify if the current value changed. |
| 1585 | */ |
| 1586 | private void setValueInternal(int current, boolean notifyChange) { |
| 1587 | if (mValue == current) { |
| 1588 | return; |
| 1589 | } |
| 1590 | // Wrap around the values if we go past the start or end |
| 1591 | if (mWrapSelectorWheel) { |
| 1592 | current = getWrappedSelectorIndex(current); |
| 1593 | } else { |
| 1594 | current = Math.max(current, mMinValue); |
| 1595 | current = Math.min(current, mMaxValue); |
| 1596 | } |
| 1597 | int previous = mValue; |
| 1598 | mValue = current; |
| 1599 | updateInputTextView(); |
| 1600 | if (notifyChange) { |
| 1601 | notifyChange(previous, current); |
| 1602 | } |
| 1603 | initializeSelectorWheelIndices(); |
| 1604 | invalidate(); |
| 1605 | } |
| 1606 | |
| 1607 | /** |
| 1608 | * Changes the current value by one which is increment or |
| 1609 | * decrement based on the passes argument. |
| 1610 | * decrement the current value. |
| 1611 | * |
| 1612 | * @param increment True to increment, false to decrement. |
| 1613 | */ |
| 1614 | private void changeValueByOne(boolean increment) { |
| 1615 | if (mHasSelectorWheel) { |
| 1616 | mInputText.setVisibility(View.INVISIBLE); |
| 1617 | if (!moveToFinalScrollerPosition(mFlingScroller)) { |
| 1618 | moveToFinalScrollerPosition(mAdjustScroller); |
| 1619 | } |
| 1620 | mPreviousScrollerY = 0; |
| 1621 | if (increment) { |
| 1622 | mFlingScroller.startScroll(0, 0, 0, -mSelectorElementHeight, SNAP_SCROLL_DURATION); |
| 1623 | } else { |
| 1624 | mFlingScroller.startScroll(0, 0, 0, mSelectorElementHeight, SNAP_SCROLL_DURATION); |
| 1625 | } |
| 1626 | invalidate(); |
| 1627 | } else { |
| 1628 | if (increment) { |
| 1629 | setValueInternal(mValue + 1, true); |
| 1630 | } else { |
| 1631 | setValueInternal(mValue - 1, true); |
| 1632 | } |
| 1633 | } |
| 1634 | } |
| 1635 | |
| 1636 | private void initializeSelectorWheel() { |
| 1637 | initializeSelectorWheelIndices(); |
| 1638 | int[] selectorIndices = mSelectorIndices; |
| 1639 | int totalTextHeight = selectorIndices.length * mTextSize; |
| 1640 | float totalTextGapHeight = (mBottom - mTop) - totalTextHeight; |
| 1641 | float textGapCount = selectorIndices.length; |
| 1642 | mSelectorTextGapHeight = (int) (totalTextGapHeight / textGapCount + 0.5f); |
| 1643 | mSelectorElementHeight = mTextSize + mSelectorTextGapHeight; |
| 1644 | // Ensure that the middle item is positioned the same as the text in |
| 1645 | // mInputText |
| 1646 | int editTextTextPosition = mInputText.getBaseline() + mInputText.getTop(); |
| 1647 | mInitialScrollOffset = editTextTextPosition |
cretin45 | b64d5e7 | 2015-10-27 12:44:11 -0700 | [diff] [blame] | 1648 | - (mSelectorElementHeight * sSelectorMiddleItemIndex); |
cretin45 | 0328b87 | 2015-01-15 16:04:44 -0800 | [diff] [blame] | 1649 | mCurrentScrollOffset = mInitialScrollOffset; |
| 1650 | updateInputTextView(); |
| 1651 | } |
| 1652 | |
| 1653 | private void initializeFadingEdges() { |
| 1654 | setVerticalFadingEdgeEnabled(true); |
| 1655 | setFadingEdgeLength((mBottom - mTop - mTextSize) / 2); |
| 1656 | } |
| 1657 | |
| 1658 | /** |
| 1659 | * Callback invoked upon completion of a given <code>scroller</code>. |
| 1660 | */ |
| 1661 | private void onScrollerFinished(Scroller scroller) { |
| 1662 | if (scroller == mFlingScroller) { |
| 1663 | if (!ensureScrollWheelAdjusted()) { |
| 1664 | updateInputTextView(); |
| 1665 | } |
| 1666 | onScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); |
| 1667 | } else { |
| 1668 | if (mScrollState != OnScrollListener.SCROLL_STATE_TOUCH_SCROLL) { |
| 1669 | updateInputTextView(); |
| 1670 | } |
| 1671 | } |
| 1672 | } |
| 1673 | |
| 1674 | /** |
| 1675 | * Handles transition to a given <code>scrollState</code> |
| 1676 | */ |
| 1677 | private void onScrollStateChange(int scrollState) { |
| 1678 | if (mScrollState == scrollState) { |
| 1679 | return; |
| 1680 | } |
| 1681 | mScrollState = scrollState; |
| 1682 | if (mOnScrollListener != null) { |
| 1683 | mOnScrollListener.onScrollStateChange(this, scrollState); |
| 1684 | } |
| 1685 | } |
| 1686 | |
| 1687 | /** |
| 1688 | * Flings the selector with the given <code>velocityY</code>. |
| 1689 | */ |
| 1690 | private void fling(int velocityY) { |
| 1691 | mPreviousScrollerY = 0; |
| 1692 | |
| 1693 | if (velocityY > 0) { |
| 1694 | mFlingScroller.fling(0, 0, 0, velocityY, 0, 0, 0, Integer.MAX_VALUE); |
| 1695 | } else { |
| 1696 | mFlingScroller.fling(0, Integer.MAX_VALUE, 0, velocityY, 0, 0, 0, Integer.MAX_VALUE); |
| 1697 | } |
| 1698 | |
| 1699 | invalidate(); |
| 1700 | } |
| 1701 | |
| 1702 | /** |
| 1703 | * @return The wrapped index <code>selectorIndex</code> value. |
| 1704 | */ |
| 1705 | private int getWrappedSelectorIndex(int selectorIndex) { |
| 1706 | if (selectorIndex > mMaxValue) { |
| 1707 | return mMinValue + (selectorIndex - mMaxValue) % (mMaxValue - mMinValue) - 1; |
| 1708 | } else if (selectorIndex < mMinValue) { |
| 1709 | return mMaxValue - (mMinValue - selectorIndex) % (mMaxValue - mMinValue) + 1; |
| 1710 | } |
| 1711 | return selectorIndex; |
| 1712 | } |
| 1713 | |
| 1714 | /** |
| 1715 | * Increments the <code>selectorIndices</code> whose string representations |
| 1716 | * will be displayed in the selector. |
| 1717 | */ |
| 1718 | private void incrementSelectorIndices(int[] selectorIndices) { |
| 1719 | for (int i = 0; i < selectorIndices.length - 1; i++) { |
| 1720 | selectorIndices[i] = selectorIndices[i + 1]; |
| 1721 | } |
| 1722 | int nextScrollSelectorIndex = selectorIndices[selectorIndices.length - 2] + 1; |
| 1723 | if (mWrapSelectorWheel && nextScrollSelectorIndex > mMaxValue) { |
| 1724 | nextScrollSelectorIndex = mMinValue; |
| 1725 | } |
| 1726 | selectorIndices[selectorIndices.length - 1] = nextScrollSelectorIndex; |
| 1727 | ensureCachedScrollSelectorValue(nextScrollSelectorIndex); |
| 1728 | } |
| 1729 | |
| 1730 | /** |
| 1731 | * Decrements the <code>selectorIndices</code> whose string representations |
| 1732 | * will be displayed in the selector. |
| 1733 | */ |
| 1734 | private void decrementSelectorIndices(int[] selectorIndices) { |
| 1735 | for (int i = selectorIndices.length - 1; i > 0; i--) { |
| 1736 | selectorIndices[i] = selectorIndices[i - 1]; |
| 1737 | } |
| 1738 | int nextScrollSelectorIndex = selectorIndices[1] - 1; |
| 1739 | if (mWrapSelectorWheel && nextScrollSelectorIndex < mMinValue) { |
| 1740 | nextScrollSelectorIndex = mMaxValue; |
| 1741 | } |
| 1742 | selectorIndices[0] = nextScrollSelectorIndex; |
| 1743 | ensureCachedScrollSelectorValue(nextScrollSelectorIndex); |
| 1744 | } |
| 1745 | |
| 1746 | /** |
| 1747 | * Ensures we have a cached string representation of the given <code> |
| 1748 | * selectorIndex</code> to avoid multiple instantiations of the same string. |
| 1749 | */ |
| 1750 | private void ensureCachedScrollSelectorValue(int selectorIndex) { |
| 1751 | SparseArray<String> cache = mSelectorIndexToStringCache; |
| 1752 | String scrollSelectorValue = cache.get(selectorIndex); |
| 1753 | if (scrollSelectorValue != null) { |
| 1754 | return; |
| 1755 | } |
| 1756 | if (selectorIndex < mMinValue || selectorIndex > mMaxValue) { |
| 1757 | scrollSelectorValue = ""; |
| 1758 | } else { |
| 1759 | if (mDisplayedValues != null) { |
| 1760 | int displayedValueIndex = selectorIndex - mMinValue; |
| 1761 | scrollSelectorValue = mDisplayedValues[displayedValueIndex]; |
| 1762 | } else { |
| 1763 | scrollSelectorValue = formatNumber(selectorIndex); |
| 1764 | } |
| 1765 | } |
| 1766 | cache.put(selectorIndex, scrollSelectorValue); |
| 1767 | } |
| 1768 | |
| 1769 | private String formatNumber(int value) { |
| 1770 | return (mFormatter != null) ? mFormatter.format(value) : formatNumberWithLocale(value); |
| 1771 | } |
| 1772 | |
| 1773 | private void validateInputTextView(View v) { |
| 1774 | String str = String.valueOf(((TextView) v).getText()); |
| 1775 | if (TextUtils.isEmpty(str)) { |
| 1776 | // Restore to the old value as we don't allow empty values |
| 1777 | updateInputTextView(); |
| 1778 | } else { |
| 1779 | // Check the new value and ensure it's in range |
| 1780 | int current = getSelectedPos(str.toString()); |
| 1781 | setValueInternal(current, true); |
| 1782 | } |
| 1783 | } |
| 1784 | |
| 1785 | /** |
| 1786 | * Updates the view of this NumberPicker. If displayValues were specified in |
| 1787 | * the string corresponding to the index specified by the current value will |
| 1788 | * be returned. Otherwise, the formatter specified in {@link #setFormatter} |
| 1789 | * will be used to format the number. |
| 1790 | * |
| 1791 | * @return Whether the text was updated. |
| 1792 | */ |
| 1793 | private boolean updateInputTextView() { |
| 1794 | /* |
| 1795 | * If we don't have displayed values then use the current number else |
| 1796 | * find the correct value in the displayed values for the current |
| 1797 | * number. |
| 1798 | */ |
| 1799 | String text = (mDisplayedValues == null) ? formatNumber(mValue) |
| 1800 | : mDisplayedValues[mValue - mMinValue]; |
| 1801 | if (!TextUtils.isEmpty(text) && !text.equals(mInputText.getText().toString())) { |
| 1802 | mInputText.setText(text); |
| 1803 | return true; |
| 1804 | } |
| 1805 | |
| 1806 | return false; |
| 1807 | } |
| 1808 | |
| 1809 | /** |
| 1810 | * Notifies the listener, if registered, of a change of the value of this |
| 1811 | * NumberPicker. |
| 1812 | */ |
| 1813 | private void notifyChange(int previous, int current) { |
| 1814 | if (mOnValueChangeListener != null) { |
| 1815 | mOnValueChangeListener.onValueChange(this, previous, mValue); |
| 1816 | } |
| 1817 | } |
| 1818 | |
| 1819 | /** |
| 1820 | * Posts a command for changing the current value by one. |
| 1821 | * |
| 1822 | * @param increment Whether to increment or decrement the value. |
| 1823 | */ |
| 1824 | private void postChangeCurrentByOneFromLongPress(boolean increment, long delayMillis) { |
| 1825 | if (mChangeCurrentByOneFromLongPressCommand == null) { |
| 1826 | mChangeCurrentByOneFromLongPressCommand = new ChangeCurrentByOneFromLongPressCommand(); |
| 1827 | } else { |
| 1828 | removeCallbacks(mChangeCurrentByOneFromLongPressCommand); |
| 1829 | } |
| 1830 | mChangeCurrentByOneFromLongPressCommand.setStep(increment); |
| 1831 | postDelayed(mChangeCurrentByOneFromLongPressCommand, delayMillis); |
| 1832 | } |
| 1833 | |
| 1834 | /** |
| 1835 | * Removes the command for changing the current value by one. |
| 1836 | */ |
| 1837 | private void removeChangeCurrentByOneFromLongPress() { |
| 1838 | if (mChangeCurrentByOneFromLongPressCommand != null) { |
| 1839 | removeCallbacks(mChangeCurrentByOneFromLongPressCommand); |
| 1840 | } |
| 1841 | } |
| 1842 | |
| 1843 | /** |
| 1844 | * Posts a command for beginning an edit of the current value via IME on |
| 1845 | * long press. |
| 1846 | */ |
| 1847 | private void postBeginSoftInputOnLongPressCommand() { |
| 1848 | if (mBeginSoftInputOnLongPressCommand == null) { |
| 1849 | mBeginSoftInputOnLongPressCommand = new BeginSoftInputOnLongPressCommand(); |
| 1850 | } else { |
| 1851 | removeCallbacks(mBeginSoftInputOnLongPressCommand); |
| 1852 | } |
| 1853 | postDelayed(mBeginSoftInputOnLongPressCommand, ViewConfiguration.getLongPressTimeout()); |
| 1854 | } |
| 1855 | |
| 1856 | /** |
| 1857 | * Removes the command for beginning an edit of the current value via IME. |
| 1858 | */ |
| 1859 | private void removeBeginSoftInputCommand() { |
| 1860 | if (mBeginSoftInputOnLongPressCommand != null) { |
| 1861 | removeCallbacks(mBeginSoftInputOnLongPressCommand); |
| 1862 | } |
| 1863 | } |
| 1864 | |
| 1865 | /** |
| 1866 | * Removes all pending callback from the message queue. |
| 1867 | */ |
| 1868 | private void removeAllCallbacks() { |
| 1869 | if (mChangeCurrentByOneFromLongPressCommand != null) { |
| 1870 | removeCallbacks(mChangeCurrentByOneFromLongPressCommand); |
| 1871 | } |
| 1872 | if (mSetSelectionCommand != null) { |
| 1873 | removeCallbacks(mSetSelectionCommand); |
| 1874 | } |
| 1875 | if (mBeginSoftInputOnLongPressCommand != null) { |
| 1876 | removeCallbacks(mBeginSoftInputOnLongPressCommand); |
| 1877 | } |
| 1878 | mPressedStateHelper.cancel(); |
| 1879 | } |
| 1880 | |
| 1881 | /** |
| 1882 | * @return The selected index given its displayed <code>value</code>. |
| 1883 | */ |
| 1884 | private int getSelectedPos(String value) { |
| 1885 | if (mDisplayedValues == null) { |
| 1886 | try { |
| 1887 | return Integer.parseInt(value); |
| 1888 | } catch (NumberFormatException e) { |
| 1889 | // Ignore as if it's not a number we don't care |
| 1890 | } |
| 1891 | } else { |
| 1892 | for (int i = 0; i < mDisplayedValues.length; i++) { |
| 1893 | // Don't force the user to type in jan when ja will do |
| 1894 | value = value.toLowerCase(); |
| 1895 | if (mDisplayedValues[i].toLowerCase().startsWith(value)) { |
| 1896 | return mMinValue + i; |
| 1897 | } |
| 1898 | } |
| 1899 | |
| 1900 | /* |
| 1901 | * The user might have typed in a number into the month field i.e. |
| 1902 | * 10 instead of OCT so support that too. |
| 1903 | */ |
| 1904 | try { |
| 1905 | return Integer.parseInt(value); |
| 1906 | } catch (NumberFormatException e) { |
| 1907 | |
| 1908 | // Ignore as if it's not a number we don't care |
| 1909 | } |
| 1910 | } |
| 1911 | return mMinValue; |
| 1912 | } |
| 1913 | |
| 1914 | /** |
| 1915 | * Posts an {@link SetSelectionCommand} from the given <code>selectionStart |
| 1916 | * </code> to <code>selectionEnd</code>. |
| 1917 | */ |
| 1918 | private void postSetSelectionCommand(int selectionStart, int selectionEnd) { |
| 1919 | if (mSetSelectionCommand == null) { |
| 1920 | mSetSelectionCommand = new SetSelectionCommand(); |
| 1921 | } else { |
| 1922 | removeCallbacks(mSetSelectionCommand); |
| 1923 | } |
| 1924 | mSetSelectionCommand.mSelectionStart = selectionStart; |
| 1925 | mSetSelectionCommand.mSelectionEnd = selectionEnd; |
| 1926 | post(mSetSelectionCommand); |
| 1927 | } |
| 1928 | |
| 1929 | /** |
| 1930 | * The numbers accepted by the input text's {@link android.view.LayoutInflater.Filter} |
| 1931 | */ |
| 1932 | private static final char[] DIGIT_CHARACTERS = new char[] { |
| 1933 | // Latin digits are the common case |
| 1934 | '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', |
| 1935 | // Arabic-Indic |
| 1936 | '\u0660', '\u0661', '\u0662', '\u0663', '\u0664', '\u0665', '\u0666', '\u0667', '\u0668' |
| 1937 | , '\u0669', |
| 1938 | // Extended Arabic-Indic |
| 1939 | '\u06f0', '\u06f1', '\u06f2', '\u06f3', '\u06f4', '\u06f5', '\u06f6', '\u06f7', '\u06f8' |
| 1940 | , '\u06f9' |
| 1941 | }; |
| 1942 | |
| 1943 | /** |
| 1944 | * Filter for accepting only valid indices or prefixes of the string |
| 1945 | * representation of valid indices. |
| 1946 | */ |
| 1947 | class InputTextFilter extends NumberKeyListener { |
| 1948 | |
| 1949 | // XXX This doesn't allow for range limits when controlled by a |
| 1950 | // soft input method! |
| 1951 | public int getInputType() { |
| 1952 | return InputType.TYPE_CLASS_TEXT; |
| 1953 | } |
| 1954 | |
| 1955 | @Override |
| 1956 | protected char[] getAcceptedChars() { |
| 1957 | return DIGIT_CHARACTERS; |
| 1958 | } |
| 1959 | |
| 1960 | @Override |
| 1961 | public CharSequence filter( |
| 1962 | CharSequence source, int start, int end, Spanned dest, int dstart, int dend) { |
| 1963 | if (mDisplayedValues == null) { |
| 1964 | CharSequence filtered = super.filter(source, start, end, dest, dstart, dend); |
| 1965 | if (filtered == null) { |
| 1966 | filtered = source.subSequence(start, end); |
| 1967 | } |
| 1968 | |
| 1969 | String result = String.valueOf(dest.subSequence(0, dstart)) + filtered |
| 1970 | + dest.subSequence(dend, dest.length()); |
| 1971 | |
| 1972 | if ("".equals(result)) { |
| 1973 | return result; |
| 1974 | } |
| 1975 | int val = getSelectedPos(result); |
| 1976 | |
| 1977 | /* |
| 1978 | * Ensure the user can't type in a value greater than the max |
| 1979 | * allowed. We have to allow less than min as the user might |
| 1980 | * want to delete some numbers and then type a new number. |
| 1981 | * And prevent multiple-"0" that exceeds the length of upper |
| 1982 | * bound number. |
| 1983 | */ |
| 1984 | if (val > mMaxValue || result.length() > String.valueOf(mMaxValue).length()) { |
| 1985 | return ""; |
| 1986 | } else { |
| 1987 | return filtered; |
| 1988 | } |
| 1989 | } else { |
| 1990 | CharSequence filtered = String.valueOf(source.subSequence(start, end)); |
| 1991 | if (TextUtils.isEmpty(filtered)) { |
| 1992 | return ""; |
| 1993 | } |
| 1994 | String result = String.valueOf(dest.subSequence(0, dstart)) + filtered |
| 1995 | + dest.subSequence(dend, dest.length()); |
| 1996 | String str = String.valueOf(result).toLowerCase(); |
| 1997 | for (String val : mDisplayedValues) { |
| 1998 | String valLowerCase = val.toLowerCase(); |
| 1999 | if (valLowerCase.startsWith(str)) { |
| 2000 | postSetSelectionCommand(result.length(), val.length()); |
| 2001 | return val.subSequence(dstart, val.length()); |
| 2002 | } |
| 2003 | } |
| 2004 | return ""; |
| 2005 | } |
| 2006 | } |
| 2007 | } |
| 2008 | |
| 2009 | /** |
| 2010 | * Ensures that the scroll wheel is adjusted i.e. there is no offset and the |
| 2011 | * middle element is in the middle of the widget. |
| 2012 | * |
| 2013 | * @return Whether an adjustment has been made. |
| 2014 | */ |
| 2015 | private boolean ensureScrollWheelAdjusted() { |
| 2016 | // adjust to the closest value |
| 2017 | int deltaY = mInitialScrollOffset - mCurrentScrollOffset; |
| 2018 | if (deltaY != 0) { |
| 2019 | mPreviousScrollerY = 0; |
| 2020 | if (Math.abs(deltaY) > mSelectorElementHeight / 2) { |
| 2021 | deltaY += (deltaY > 0) ? -mSelectorElementHeight : mSelectorElementHeight; |
| 2022 | } |
| 2023 | mAdjustScroller.startScroll(0, 0, 0, deltaY, SELECTOR_ADJUSTMENT_DURATION_MILLIS); |
| 2024 | invalidate(); |
| 2025 | return true; |
| 2026 | } |
| 2027 | return false; |
| 2028 | } |
| 2029 | |
| 2030 | class PressedStateHelper implements Runnable { |
| 2031 | public static final int BUTTON_INCREMENT = 1; |
| 2032 | public static final int BUTTON_DECREMENT = 2; |
| 2033 | |
| 2034 | private final int MODE_PRESS = 1; |
| 2035 | private final int MODE_TAPPED = 2; |
| 2036 | |
| 2037 | private int mManagedButton; |
| 2038 | private int mMode; |
| 2039 | |
| 2040 | public void cancel() { |
| 2041 | mMode = 0; |
| 2042 | mManagedButton = 0; |
| 2043 | LocalePicker.this.removeCallbacks(this); |
| 2044 | if (mIncrementVirtualButtonPressed) { |
| 2045 | mIncrementVirtualButtonPressed = false; |
| 2046 | invalidate(0, mBottomSelectionDividerBottom, mRight, mBottom); |
| 2047 | } |
| 2048 | mDecrementVirtualButtonPressed = false; |
| 2049 | if (mDecrementVirtualButtonPressed) { |
| 2050 | invalidate(0, 0, mRight, mTopSelectionDividerTop); |
| 2051 | } |
| 2052 | } |
| 2053 | |
| 2054 | public void buttonPressDelayed(int button) { |
| 2055 | cancel(); |
| 2056 | mMode = MODE_PRESS; |
| 2057 | mManagedButton = button; |
| 2058 | LocalePicker.this.postDelayed(this, ViewConfiguration.getTapTimeout()); |
| 2059 | } |
| 2060 | |
| 2061 | public void buttonTapped(int button) { |
| 2062 | cancel(); |
| 2063 | mMode = MODE_TAPPED; |
| 2064 | mManagedButton = button; |
| 2065 | LocalePicker.this.post(this); |
| 2066 | } |
| 2067 | |
| 2068 | @Override |
| 2069 | public void run() { |
| 2070 | switch (mMode) { |
| 2071 | case MODE_PRESS: { |
| 2072 | switch (mManagedButton) { |
| 2073 | case BUTTON_INCREMENT: { |
| 2074 | mIncrementVirtualButtonPressed = true; |
| 2075 | invalidate(0, mBottomSelectionDividerBottom, mRight, mBottom); |
| 2076 | } break; |
| 2077 | case BUTTON_DECREMENT: { |
| 2078 | mDecrementVirtualButtonPressed = true; |
| 2079 | invalidate(0, 0, mRight, mTopSelectionDividerTop); |
| 2080 | } |
| 2081 | } |
| 2082 | } break; |
| 2083 | case MODE_TAPPED: { |
| 2084 | switch (mManagedButton) { |
| 2085 | case BUTTON_INCREMENT: { |
| 2086 | if (!mIncrementVirtualButtonPressed) { |
| 2087 | LocalePicker.this.postDelayed(this, |
| 2088 | ViewConfiguration.getPressedStateDuration()); |
| 2089 | } |
| 2090 | mIncrementVirtualButtonPressed ^= true; |
| 2091 | invalidate(0, mBottomSelectionDividerBottom, mRight, mBottom); |
| 2092 | } break; |
| 2093 | case BUTTON_DECREMENT: { |
| 2094 | if (!mDecrementVirtualButtonPressed) { |
| 2095 | LocalePicker.this.postDelayed(this, |
| 2096 | ViewConfiguration.getPressedStateDuration()); |
| 2097 | } |
| 2098 | mDecrementVirtualButtonPressed ^= true; |
| 2099 | invalidate(0, 0, mRight, mTopSelectionDividerTop); |
| 2100 | } |
| 2101 | } |
| 2102 | } break; |
| 2103 | } |
| 2104 | } |
| 2105 | } |
| 2106 | |
| 2107 | /** |
| 2108 | * Command for setting the input text selection. |
| 2109 | */ |
| 2110 | class SetSelectionCommand implements Runnable { |
| 2111 | private int mSelectionStart; |
| 2112 | |
| 2113 | private int mSelectionEnd; |
| 2114 | |
| 2115 | public void run() { |
| 2116 | mInputText.setSelection(mSelectionStart, mSelectionEnd); |
| 2117 | } |
| 2118 | } |
| 2119 | |
| 2120 | /** |
| 2121 | * Command for changing the current value from a long press by one. |
| 2122 | */ |
| 2123 | class ChangeCurrentByOneFromLongPressCommand implements Runnable { |
| 2124 | private boolean mIncrement; |
| 2125 | |
| 2126 | private void setStep(boolean increment) { |
| 2127 | mIncrement = increment; |
| 2128 | } |
| 2129 | |
| 2130 | @Override |
| 2131 | public void run() { |
| 2132 | changeValueByOne(mIncrement); |
| 2133 | postDelayed(this, mLongPressUpdateInterval); |
| 2134 | } |
| 2135 | } |
| 2136 | |
| 2137 | /** |
| 2138 | * @hide |
| 2139 | */ |
| 2140 | public static class CustomEditText extends EditText { |
| 2141 | |
| 2142 | public CustomEditText(Context context, AttributeSet attrs) { |
| 2143 | super(context, attrs); |
| 2144 | } |
| 2145 | |
| 2146 | @Override |
| 2147 | public void onEditorAction(int actionCode) { |
| 2148 | super.onEditorAction(actionCode); |
| 2149 | if (actionCode == EditorInfo.IME_ACTION_DONE) { |
| 2150 | clearFocus(); |
| 2151 | } |
| 2152 | } |
| 2153 | } |
| 2154 | |
| 2155 | /** |
| 2156 | * Command for beginning soft input on long press. |
| 2157 | */ |
| 2158 | class BeginSoftInputOnLongPressCommand implements Runnable { |
| 2159 | |
| 2160 | @Override |
| 2161 | public void run() { |
| 2162 | showSoftInput(); |
| 2163 | mIngonreMoveEvents = true; |
| 2164 | } |
| 2165 | } |
| 2166 | |
| 2167 | /** |
| 2168 | * Class for managing virtual view tree rooted at this picker. |
| 2169 | */ |
| 2170 | class AccessibilityNodeProviderImpl extends AccessibilityNodeProvider { |
| 2171 | private static final int UNDEFINED = Integer.MIN_VALUE; |
| 2172 | |
| 2173 | private static final int VIRTUAL_VIEW_ID_INCREMENT = 1; |
| 2174 | |
| 2175 | private static final int VIRTUAL_VIEW_ID_INPUT = 2; |
| 2176 | |
| 2177 | private static final int VIRTUAL_VIEW_ID_DECREMENT = 3; |
| 2178 | |
| 2179 | private final Rect mTempRect = new Rect(); |
| 2180 | |
| 2181 | private final int[] mTempArray = new int[2]; |
| 2182 | |
| 2183 | private int mAccessibilityFocusedView = UNDEFINED; |
| 2184 | |
| 2185 | @Override |
| 2186 | public AccessibilityNodeInfo createAccessibilityNodeInfo(int virtualViewId) { |
| 2187 | switch (virtualViewId) { |
| 2188 | case View.NO_ID: |
| 2189 | return createAccessibilityNodeInfoForNumberPicker( mScrollX, mScrollY, |
| 2190 | mScrollX + (mRight - mLeft), mScrollY + (mBottom - mTop)); |
| 2191 | case VIRTUAL_VIEW_ID_DECREMENT: |
| 2192 | return createAccessibilityNodeInfoForVirtualButton(VIRTUAL_VIEW_ID_DECREMENT, |
| 2193 | getVirtualDecrementButtonText(), mScrollX, mScrollY, |
| 2194 | mScrollX + (mRight - mLeft), |
| 2195 | mTopSelectionDividerTop + mSelectionDividerHeight); |
| 2196 | case VIRTUAL_VIEW_ID_INPUT: |
| 2197 | return createAccessibiltyNodeInfoForInputText(mScrollX, |
| 2198 | mTopSelectionDividerTop + mSelectionDividerHeight, |
| 2199 | mScrollX + (mRight - mLeft), |
| 2200 | mBottomSelectionDividerBottom - mSelectionDividerHeight); |
| 2201 | case VIRTUAL_VIEW_ID_INCREMENT: |
| 2202 | return createAccessibilityNodeInfoForVirtualButton(VIRTUAL_VIEW_ID_INCREMENT, |
| 2203 | getVirtualIncrementButtonText(), mScrollX, |
| 2204 | mBottomSelectionDividerBottom - mSelectionDividerHeight, |
| 2205 | mScrollX + (mRight - mLeft), mScrollY + (mBottom - mTop)); |
| 2206 | } |
| 2207 | return super.createAccessibilityNodeInfo(virtualViewId); |
| 2208 | } |
| 2209 | |
| 2210 | @Override |
| 2211 | public List<AccessibilityNodeInfo> findAccessibilityNodeInfosByText(String searched, |
| 2212 | int virtualViewId) { |
| 2213 | if (TextUtils.isEmpty(searched)) { |
| 2214 | return Collections.emptyList(); |
| 2215 | } |
| 2216 | String searchedLowerCase = searched.toLowerCase(); |
| 2217 | List<AccessibilityNodeInfo> result = new ArrayList<AccessibilityNodeInfo>(); |
| 2218 | switch (virtualViewId) { |
| 2219 | case View.NO_ID: { |
| 2220 | findAccessibilityNodeInfosByTextInChild(searchedLowerCase, |
| 2221 | VIRTUAL_VIEW_ID_DECREMENT, result); |
| 2222 | findAccessibilityNodeInfosByTextInChild(searchedLowerCase, |
| 2223 | VIRTUAL_VIEW_ID_INPUT, result); |
| 2224 | findAccessibilityNodeInfosByTextInChild(searchedLowerCase, |
| 2225 | VIRTUAL_VIEW_ID_INCREMENT, result); |
| 2226 | return result; |
| 2227 | } |
| 2228 | case VIRTUAL_VIEW_ID_DECREMENT: |
| 2229 | case VIRTUAL_VIEW_ID_INCREMENT: |
| 2230 | case VIRTUAL_VIEW_ID_INPUT: { |
| 2231 | findAccessibilityNodeInfosByTextInChild(searchedLowerCase, virtualViewId, |
| 2232 | result); |
| 2233 | return result; |
| 2234 | } |
| 2235 | } |
| 2236 | return super.findAccessibilityNodeInfosByText(searched, virtualViewId); |
| 2237 | } |
| 2238 | |
| 2239 | @Override |
| 2240 | public boolean performAction(int virtualViewId, int action, Bundle arguments) { |
| 2241 | switch (virtualViewId) { |
| 2242 | case View.NO_ID: { |
| 2243 | switch (action) { |
| 2244 | case AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS: { |
| 2245 | if (mAccessibilityFocusedView != virtualViewId) { |
| 2246 | mAccessibilityFocusedView = virtualViewId; |
| 2247 | requestAccessibilityFocus(); |
| 2248 | return true; |
| 2249 | } |
| 2250 | } return false; |
| 2251 | case AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS: { |
| 2252 | if (mAccessibilityFocusedView == virtualViewId) { |
| 2253 | mAccessibilityFocusedView = UNDEFINED; |
| 2254 | clearAccessibilityFocus(); |
| 2255 | return true; |
| 2256 | } |
| 2257 | return false; |
| 2258 | } |
| 2259 | case AccessibilityNodeInfo.ACTION_SCROLL_FORWARD: { |
| 2260 | if (LocalePicker.this.isEnabled() |
| 2261 | && (getWrapSelectorWheel() || getValue() < getMaxValue())) { |
| 2262 | changeValueByOne(true); |
| 2263 | return true; |
| 2264 | } |
| 2265 | } return false; |
| 2266 | case AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD: { |
| 2267 | if (LocalePicker.this.isEnabled() |
| 2268 | && (getWrapSelectorWheel() || getValue() > getMinValue())) { |
| 2269 | changeValueByOne(false); |
| 2270 | return true; |
| 2271 | } |
| 2272 | } return false; |
| 2273 | } |
| 2274 | } break; |
| 2275 | case VIRTUAL_VIEW_ID_INPUT: { |
| 2276 | switch (action) { |
| 2277 | case AccessibilityNodeInfo.ACTION_FOCUS: { |
| 2278 | if (LocalePicker.this.isEnabled() && !mInputText.isFocused()) { |
| 2279 | return mInputText.requestFocus(); |
| 2280 | } |
| 2281 | } break; |
| 2282 | case AccessibilityNodeInfo.ACTION_CLEAR_FOCUS: { |
| 2283 | if (LocalePicker.this.isEnabled() && mInputText.isFocused()) { |
| 2284 | mInputText.clearFocus(); |
| 2285 | return true; |
| 2286 | } |
| 2287 | return false; |
| 2288 | } |
| 2289 | case AccessibilityNodeInfo.ACTION_CLICK: { |
| 2290 | if (LocalePicker.this.isEnabled()) { |
| 2291 | showSoftInput(); |
| 2292 | return true; |
| 2293 | } |
| 2294 | return false; |
| 2295 | } |
| 2296 | case AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS: { |
| 2297 | if (mAccessibilityFocusedView != virtualViewId) { |
| 2298 | mAccessibilityFocusedView = virtualViewId; |
| 2299 | sendAccessibilityEventForVirtualView(virtualViewId, |
| 2300 | AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED); |
| 2301 | mInputText.invalidate(); |
| 2302 | return true; |
| 2303 | } |
| 2304 | } return false; |
| 2305 | case AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS: { |
| 2306 | if (mAccessibilityFocusedView == virtualViewId) { |
| 2307 | mAccessibilityFocusedView = UNDEFINED; |
| 2308 | sendAccessibilityEventForVirtualView(virtualViewId, |
| 2309 | AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED); |
| 2310 | mInputText.invalidate(); |
| 2311 | return true; |
| 2312 | } |
| 2313 | } return false; |
| 2314 | default: { |
| 2315 | return mInputText.performAccessibilityAction(action, arguments); |
| 2316 | } |
| 2317 | } |
| 2318 | } return false; |
| 2319 | case VIRTUAL_VIEW_ID_INCREMENT: { |
| 2320 | switch (action) { |
| 2321 | case AccessibilityNodeInfo.ACTION_CLICK: { |
| 2322 | if (LocalePicker.this.isEnabled()) { |
| 2323 | LocalePicker.this.changeValueByOne(true); |
| 2324 | sendAccessibilityEventForVirtualView(virtualViewId, |
| 2325 | AccessibilityEvent.TYPE_VIEW_CLICKED); |
| 2326 | return true; |
| 2327 | } |
| 2328 | } return false; |
| 2329 | case AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS: { |
| 2330 | if (mAccessibilityFocusedView != virtualViewId) { |
| 2331 | mAccessibilityFocusedView = virtualViewId; |
| 2332 | sendAccessibilityEventForVirtualView(virtualViewId, |
| 2333 | AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED); |
| 2334 | invalidate(0, mBottomSelectionDividerBottom, mRight, mBottom); |
| 2335 | return true; |
| 2336 | } |
| 2337 | } return false; |
| 2338 | case AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS: { |
| 2339 | if (mAccessibilityFocusedView == virtualViewId) { |
| 2340 | mAccessibilityFocusedView = UNDEFINED; |
| 2341 | sendAccessibilityEventForVirtualView(virtualViewId, |
| 2342 | AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED); |
| 2343 | invalidate(0, mBottomSelectionDividerBottom, mRight, mBottom); |
| 2344 | return true; |
| 2345 | } |
| 2346 | } return false; |
| 2347 | } |
| 2348 | } return false; |
| 2349 | case VIRTUAL_VIEW_ID_DECREMENT: { |
| 2350 | switch (action) { |
| 2351 | case AccessibilityNodeInfo.ACTION_CLICK: { |
| 2352 | if (LocalePicker.this.isEnabled()) { |
| 2353 | final boolean increment = (virtualViewId == VIRTUAL_VIEW_ID_INCREMENT); |
| 2354 | LocalePicker.this.changeValueByOne(increment); |
| 2355 | sendAccessibilityEventForVirtualView(virtualViewId, |
| 2356 | AccessibilityEvent.TYPE_VIEW_CLICKED); |
| 2357 | return true; |
| 2358 | } |
| 2359 | } return false; |
| 2360 | case AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS: { |
| 2361 | if (mAccessibilityFocusedView != virtualViewId) { |
| 2362 | mAccessibilityFocusedView = virtualViewId; |
| 2363 | sendAccessibilityEventForVirtualView(virtualViewId, |
| 2364 | AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED); |
| 2365 | invalidate(0, 0, mRight, mTopSelectionDividerTop); |
| 2366 | return true; |
| 2367 | } |
| 2368 | } return false; |
| 2369 | case AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS: { |
| 2370 | if (mAccessibilityFocusedView == virtualViewId) { |
| 2371 | mAccessibilityFocusedView = UNDEFINED; |
| 2372 | sendAccessibilityEventForVirtualView(virtualViewId, |
| 2373 | AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED); |
| 2374 | invalidate(0, 0, mRight, mTopSelectionDividerTop); |
| 2375 | return true; |
| 2376 | } |
| 2377 | } return false; |
| 2378 | } |
| 2379 | } return false; |
| 2380 | } |
| 2381 | return super.performAction(virtualViewId, action, arguments); |
| 2382 | } |
| 2383 | |
| 2384 | public void sendAccessibilityEventForVirtualView(int virtualViewId, int eventType) { |
| 2385 | switch (virtualViewId) { |
| 2386 | case VIRTUAL_VIEW_ID_DECREMENT: { |
| 2387 | if (hasVirtualDecrementButton()) { |
| 2388 | sendAccessibilityEventForVirtualButton(virtualViewId, eventType, |
| 2389 | getVirtualDecrementButtonText()); |
| 2390 | } |
| 2391 | } break; |
| 2392 | case VIRTUAL_VIEW_ID_INPUT: { |
| 2393 | sendAccessibilityEventForVirtualText(eventType); |
| 2394 | } break; |
| 2395 | case VIRTUAL_VIEW_ID_INCREMENT: { |
| 2396 | if (hasVirtualIncrementButton()) { |
| 2397 | sendAccessibilityEventForVirtualButton(virtualViewId, eventType, |
| 2398 | getVirtualIncrementButtonText()); |
| 2399 | } |
| 2400 | } break; |
| 2401 | } |
| 2402 | } |
| 2403 | |
| 2404 | private void sendAccessibilityEventForVirtualText(int eventType) { |
| 2405 | if (AccessibilityManager.getInstance(mContext).isEnabled()) { |
| 2406 | AccessibilityEvent event = AccessibilityEvent.obtain(eventType); |
| 2407 | mInputText.onInitializeAccessibilityEvent(event); |
| 2408 | mInputText.onPopulateAccessibilityEvent(event); |
| 2409 | event.setSource(LocalePicker.this, VIRTUAL_VIEW_ID_INPUT); |
| 2410 | requestSendAccessibilityEvent(LocalePicker.this, event); |
| 2411 | } |
| 2412 | } |
| 2413 | |
| 2414 | private void sendAccessibilityEventForVirtualButton(int virtualViewId, int eventType, |
| 2415 | String text) { |
| 2416 | if (AccessibilityManager.getInstance(mContext).isEnabled()) { |
| 2417 | AccessibilityEvent event = AccessibilityEvent.obtain(eventType); |
| 2418 | event.setClassName(Button.class.getName()); |
| 2419 | event.setPackageName(mContext.getPackageName()); |
| 2420 | event.getText().add(text); |
| 2421 | event.setEnabled(LocalePicker.this.isEnabled()); |
| 2422 | event.setSource(LocalePicker.this, virtualViewId); |
| 2423 | requestSendAccessibilityEvent(LocalePicker.this, event); |
| 2424 | } |
| 2425 | } |
| 2426 | |
| 2427 | private void findAccessibilityNodeInfosByTextInChild(String searchedLowerCase, |
| 2428 | int virtualViewId, List<AccessibilityNodeInfo> outResult) { |
| 2429 | switch (virtualViewId) { |
| 2430 | case VIRTUAL_VIEW_ID_DECREMENT: { |
| 2431 | String text = getVirtualDecrementButtonText(); |
| 2432 | if (!TextUtils.isEmpty(text) |
| 2433 | && text.toString().toLowerCase().contains(searchedLowerCase)) { |
| 2434 | outResult.add(createAccessibilityNodeInfo(VIRTUAL_VIEW_ID_DECREMENT)); |
| 2435 | } |
| 2436 | } return; |
| 2437 | case VIRTUAL_VIEW_ID_INPUT: { |
| 2438 | CharSequence text = mInputText.getText(); |
| 2439 | if (!TextUtils.isEmpty(text) && |
| 2440 | text.toString().toLowerCase().contains(searchedLowerCase)) { |
| 2441 | outResult.add(createAccessibilityNodeInfo(VIRTUAL_VIEW_ID_INPUT)); |
| 2442 | return; |
| 2443 | } |
| 2444 | CharSequence contentDesc = mInputText.getText(); |
| 2445 | if (!TextUtils.isEmpty(contentDesc) && |
| 2446 | contentDesc.toString().toLowerCase().contains(searchedLowerCase)) { |
| 2447 | outResult.add(createAccessibilityNodeInfo(VIRTUAL_VIEW_ID_INPUT)); |
| 2448 | return; |
| 2449 | } |
| 2450 | } break; |
| 2451 | case VIRTUAL_VIEW_ID_INCREMENT: { |
| 2452 | String text = getVirtualIncrementButtonText(); |
| 2453 | if (!TextUtils.isEmpty(text) |
| 2454 | && text.toString().toLowerCase().contains(searchedLowerCase)) { |
| 2455 | outResult.add(createAccessibilityNodeInfo(VIRTUAL_VIEW_ID_INCREMENT)); |
| 2456 | } |
| 2457 | } return; |
| 2458 | } |
| 2459 | } |
| 2460 | |
| 2461 | private AccessibilityNodeInfo createAccessibiltyNodeInfoForInputText( |
| 2462 | int left, int top, int right, int bottom) { |
| 2463 | AccessibilityNodeInfo info = mInputText.createAccessibilityNodeInfo(); |
| 2464 | info.setSource(LocalePicker.this, VIRTUAL_VIEW_ID_INPUT); |
| 2465 | if (mAccessibilityFocusedView != VIRTUAL_VIEW_ID_INPUT) { |
| 2466 | info.addAction(AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS); |
| 2467 | } |
| 2468 | if (mAccessibilityFocusedView == VIRTUAL_VIEW_ID_INPUT) { |
| 2469 | info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS); |
| 2470 | } |
| 2471 | Rect boundsInParent = mTempRect; |
| 2472 | boundsInParent.set(left, top, right, bottom); |
| 2473 | info.setVisibleToUser(isVisibleToUser(boundsInParent)); |
| 2474 | info.setBoundsInParent(boundsInParent); |
| 2475 | Rect boundsInScreen = boundsInParent; |
| 2476 | int[] locationOnScreen = mTempArray; |
| 2477 | getLocationOnScreen(locationOnScreen); |
| 2478 | boundsInScreen.offset(locationOnScreen[0], locationOnScreen[1]); |
| 2479 | info.setBoundsInScreen(boundsInScreen); |
| 2480 | return info; |
| 2481 | } |
| 2482 | |
| 2483 | private AccessibilityNodeInfo createAccessibilityNodeInfoForVirtualButton(int virtualViewId, |
| 2484 | String text, int left, int top, int right, int bottom) { |
| 2485 | AccessibilityNodeInfo info = AccessibilityNodeInfo.obtain(); |
| 2486 | info.setClassName(Button.class.getName()); |
| 2487 | info.setPackageName(mContext.getPackageName()); |
| 2488 | info.setSource(LocalePicker.this, virtualViewId); |
| 2489 | info.setParent(LocalePicker.this); |
| 2490 | info.setText(text); |
| 2491 | info.setClickable(true); |
| 2492 | info.setLongClickable(true); |
| 2493 | info.setEnabled(LocalePicker.this.isEnabled()); |
| 2494 | Rect boundsInParent = mTempRect; |
| 2495 | boundsInParent.set(left, top, right, bottom); |
| 2496 | info.setVisibleToUser(isVisibleToUser(boundsInParent)); |
| 2497 | info.setBoundsInParent(boundsInParent); |
| 2498 | Rect boundsInScreen = boundsInParent; |
| 2499 | int[] locationOnScreen = mTempArray; |
| 2500 | getLocationOnScreen(locationOnScreen); |
| 2501 | boundsInScreen.offset(locationOnScreen[0], locationOnScreen[1]); |
| 2502 | info.setBoundsInScreen(boundsInScreen); |
| 2503 | |
| 2504 | if (mAccessibilityFocusedView != virtualViewId) { |
| 2505 | info.addAction(AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS); |
| 2506 | } |
| 2507 | if (mAccessibilityFocusedView == virtualViewId) { |
| 2508 | info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS); |
| 2509 | } |
| 2510 | if (LocalePicker.this.isEnabled()) { |
| 2511 | info.addAction(AccessibilityNodeInfo.ACTION_CLICK); |
| 2512 | } |
| 2513 | |
| 2514 | return info; |
| 2515 | } |
| 2516 | |
| 2517 | private AccessibilityNodeInfo createAccessibilityNodeInfoForNumberPicker(int left, int top, |
| 2518 | int right, int bottom) { |
| 2519 | AccessibilityNodeInfo info = AccessibilityNodeInfo.obtain(); |
| 2520 | info.setClassName(LocalePicker.class.getName()); |
| 2521 | info.setPackageName(mContext.getPackageName()); |
| 2522 | info.setSource(LocalePicker.this); |
| 2523 | |
| 2524 | if (hasVirtualDecrementButton()) { |
| 2525 | info.addChild(LocalePicker.this, VIRTUAL_VIEW_ID_DECREMENT); |
| 2526 | } |
| 2527 | info.addChild(LocalePicker.this, VIRTUAL_VIEW_ID_INPUT); |
| 2528 | if (hasVirtualIncrementButton()) { |
| 2529 | info.addChild(LocalePicker.this, VIRTUAL_VIEW_ID_INCREMENT); |
| 2530 | } |
| 2531 | |
| 2532 | info.setParent((View) getParentForAccessibility()); |
| 2533 | info.setEnabled(LocalePicker.this.isEnabled()); |
| 2534 | info.setScrollable(true); |
| 2535 | |
| 2536 | final float applicationScale = |
| 2537 | getContext().getResources().getCompatibilityInfo().applicationScale; |
| 2538 | |
| 2539 | Rect boundsInParent = mTempRect; |
| 2540 | boundsInParent.set(left, top, right, bottom); |
| 2541 | boundsInParent.scale(applicationScale); |
| 2542 | info.setBoundsInParent(boundsInParent); |
| 2543 | |
| 2544 | info.setVisibleToUser(isVisibleToUser()); |
| 2545 | |
| 2546 | Rect boundsInScreen = boundsInParent; |
| 2547 | int[] locationOnScreen = mTempArray; |
| 2548 | getLocationOnScreen(locationOnScreen); |
| 2549 | boundsInScreen.offset(locationOnScreen[0], locationOnScreen[1]); |
| 2550 | boundsInScreen.scale(applicationScale); |
| 2551 | info.setBoundsInScreen(boundsInScreen); |
| 2552 | |
| 2553 | if (mAccessibilityFocusedView != View.NO_ID) { |
| 2554 | info.addAction(AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS); |
| 2555 | } |
| 2556 | if (mAccessibilityFocusedView == View.NO_ID) { |
| 2557 | info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS); |
| 2558 | } |
| 2559 | if (LocalePicker.this.isEnabled()) { |
| 2560 | if (getWrapSelectorWheel() || getValue() < getMaxValue()) { |
| 2561 | info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD); |
| 2562 | } |
| 2563 | if (getWrapSelectorWheel() || getValue() > getMinValue()) { |
| 2564 | info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD); |
| 2565 | } |
| 2566 | } |
| 2567 | |
| 2568 | return info; |
| 2569 | } |
| 2570 | |
| 2571 | private boolean hasVirtualDecrementButton() { |
| 2572 | return getWrapSelectorWheel() || getValue() > getMinValue(); |
| 2573 | } |
| 2574 | |
| 2575 | private boolean hasVirtualIncrementButton() { |
| 2576 | return getWrapSelectorWheel() || getValue() < getMaxValue(); |
| 2577 | } |
| 2578 | |
| 2579 | private String getVirtualDecrementButtonText() { |
| 2580 | int value = mValue - 1; |
| 2581 | if (mWrapSelectorWheel) { |
| 2582 | value = getWrappedSelectorIndex(value); |
| 2583 | } |
| 2584 | if (value >= mMinValue) { |
| 2585 | return (mDisplayedValues == null) ? formatNumber(value) |
| 2586 | : mDisplayedValues[value - mMinValue]; |
| 2587 | } |
| 2588 | return null; |
| 2589 | } |
| 2590 | |
| 2591 | private String getVirtualIncrementButtonText() { |
| 2592 | int value = mValue + 1; |
| 2593 | if (mWrapSelectorWheel) { |
| 2594 | value = getWrappedSelectorIndex(value); |
| 2595 | } |
| 2596 | if (value <= mMaxValue) { |
| 2597 | return (mDisplayedValues == null) ? formatNumber(value) |
| 2598 | : mDisplayedValues[value - mMinValue]; |
| 2599 | } |
| 2600 | return null; |
| 2601 | } |
| 2602 | } |
| 2603 | |
| 2604 | static private String formatNumberWithLocale(int value) { |
| 2605 | return String.format(Locale.getDefault(), "%d", value); |
| 2606 | } |
| 2607 | } |