Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2014 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package android.widget; |
| 18 | |
| 19 | import android.content.Context; |
| 20 | import android.content.res.ColorStateList; |
Alan Viverette | fd2dd208 | 2014-08-19 18:11:54 -0700 | [diff] [blame] | 21 | import android.content.res.Configuration; |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 22 | import android.content.res.Resources; |
| 23 | import android.graphics.Canvas; |
| 24 | import android.graphics.Paint; |
| 25 | import android.graphics.Paint.Align; |
| 26 | import android.graphics.Paint.Style; |
| 27 | import android.graphics.Rect; |
| 28 | import android.graphics.Typeface; |
| 29 | import android.os.Bundle; |
| 30 | import android.text.format.DateFormat; |
| 31 | import android.text.format.DateUtils; |
| 32 | import android.text.format.Time; |
| 33 | import android.util.AttributeSet; |
Alan Viverette | ffb46bf | 2014-10-24 12:06:11 -0700 | [diff] [blame] | 34 | import android.util.IntArray; |
Alan Viverette | 5878076 | 2014-09-10 17:09:13 -0700 | [diff] [blame] | 35 | import android.util.MathUtils; |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 36 | import android.view.MotionEvent; |
| 37 | import android.view.View; |
| 38 | import android.view.accessibility.AccessibilityEvent; |
| 39 | import android.view.accessibility.AccessibilityNodeInfo; |
| 40 | |
| 41 | import com.android.internal.R; |
| 42 | import com.android.internal.widget.ExploreByTouchHelper; |
| 43 | |
Alan Viverette | fd2dd208 | 2014-08-19 18:11:54 -0700 | [diff] [blame] | 44 | import java.text.SimpleDateFormat; |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 45 | import java.util.Calendar; |
| 46 | import java.util.Formatter; |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 47 | import java.util.List; |
| 48 | import java.util.Locale; |
| 49 | |
| 50 | /** |
| 51 | * A calendar-like view displaying a specified month and the appropriate selectable day numbers |
| 52 | * within the specified month. |
| 53 | */ |
| 54 | class SimpleMonthView extends View { |
Alan Viverette | 518ff0d | 2014-08-15 14:20:35 -0700 | [diff] [blame] | 55 | private static final int DEFAULT_HEIGHT = 32; |
| 56 | private static final int MIN_HEIGHT = 10; |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 57 | |
| 58 | private static final int DEFAULT_SELECTED_DAY = -1; |
| 59 | private static final int DEFAULT_WEEK_START = Calendar.SUNDAY; |
| 60 | private static final int DEFAULT_NUM_DAYS = 7; |
| 61 | private static final int DEFAULT_NUM_ROWS = 6; |
| 62 | private static final int MAX_NUM_ROWS = 6; |
| 63 | |
| 64 | private static final int SELECTED_CIRCLE_ALPHA = 60; |
| 65 | |
Alan Viverette | 518ff0d | 2014-08-15 14:20:35 -0700 | [diff] [blame] | 66 | private static final int DAY_SEPARATOR_WIDTH = 1; |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 67 | |
Alan Viverette | 50eb025 | 2014-10-24 14:34:26 -0700 | [diff] [blame] | 68 | private final Formatter mFormatter; |
| 69 | private final StringBuilder mStringBuilder; |
| 70 | |
Alan Viverette | 518ff0d | 2014-08-15 14:20:35 -0700 | [diff] [blame] | 71 | private final int mMiniDayNumberTextSize; |
| 72 | private final int mMonthLabelTextSize; |
| 73 | private final int mMonthDayLabelTextSize; |
| 74 | private final int mMonthHeaderSize; |
| 75 | private final int mDaySelectedCircleSize; |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 76 | |
Alan Viverette | fd2dd208 | 2014-08-19 18:11:54 -0700 | [diff] [blame] | 77 | /** Single-letter (when available) formatter for the day of week label. */ |
| 78 | private SimpleDateFormat mDayFormatter = new SimpleDateFormat("EEEEE", Locale.getDefault()); |
| 79 | |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 80 | // affects the padding on the sides of this view |
| 81 | private int mPadding = 0; |
| 82 | |
| 83 | private String mDayOfWeekTypeface; |
| 84 | private String mMonthTitleTypeface; |
| 85 | |
| 86 | private Paint mDayNumberPaint; |
| 87 | private Paint mDayNumberDisabledPaint; |
| 88 | private Paint mDayNumberSelectedPaint; |
| 89 | |
| 90 | private Paint mMonthTitlePaint; |
| 91 | private Paint mMonthDayLabelPaint; |
| 92 | |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 93 | private int mMonth; |
| 94 | private int mYear; |
| 95 | |
| 96 | // Quick reference to the width of this view, matches parent |
| 97 | private int mWidth; |
| 98 | |
| 99 | // The height this view should draw at in pixels, set by height param |
| 100 | private int mRowHeight = DEFAULT_HEIGHT; |
| 101 | |
| 102 | // If this view contains the today |
| 103 | private boolean mHasToday = false; |
| 104 | |
| 105 | // Which day is selected [0-6] or -1 if no day is selected |
| 106 | private int mSelectedDay = -1; |
| 107 | |
| 108 | // Which day is today [0-6] or -1 if no day is today |
| 109 | private int mToday = DEFAULT_SELECTED_DAY; |
| 110 | |
| 111 | // Which day of the week to start on [0-6] |
| 112 | private int mWeekStart = DEFAULT_WEEK_START; |
| 113 | |
| 114 | // How many days to display |
| 115 | private int mNumDays = DEFAULT_NUM_DAYS; |
| 116 | |
| 117 | // The number of days + a spot for week number if it is displayed |
| 118 | private int mNumCells = mNumDays; |
| 119 | |
| 120 | private int mDayOfWeekStart = 0; |
| 121 | |
| 122 | // First enabled day |
| 123 | private int mEnabledDayStart = 1; |
| 124 | |
| 125 | // Last enabled day |
| 126 | private int mEnabledDayEnd = 31; |
| 127 | |
| 128 | private final Calendar mCalendar = Calendar.getInstance(); |
| 129 | private final Calendar mDayLabelCalendar = Calendar.getInstance(); |
| 130 | |
| 131 | private final MonthViewTouchHelper mTouchHelper; |
| 132 | |
| 133 | private int mNumRows = DEFAULT_NUM_ROWS; |
| 134 | |
| 135 | // Optional listener for handling day click actions |
| 136 | private OnDayClickListener mOnDayClickListener; |
| 137 | |
| 138 | // Whether to prevent setting the accessibility delegate |
| 139 | private boolean mLockAccessibilityDelegate; |
| 140 | |
| 141 | private int mNormalTextColor; |
| 142 | private int mDisabledTextColor; |
| 143 | private int mSelectedDayColor; |
| 144 | |
| 145 | public SimpleMonthView(Context context) { |
| 146 | this(context, null); |
| 147 | } |
| 148 | |
| 149 | public SimpleMonthView(Context context, AttributeSet attrs) { |
| 150 | this(context, attrs, R.attr.datePickerStyle); |
| 151 | } |
| 152 | |
Alan Viverette | 50eb025 | 2014-10-24 14:34:26 -0700 | [diff] [blame] | 153 | public SimpleMonthView(Context context, AttributeSet attrs, int defStyleAttr) { |
| 154 | this(context, attrs, defStyleAttr, 0); |
| 155 | } |
| 156 | |
| 157 | public SimpleMonthView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { |
| 158 | super(context, attrs, defStyleAttr, defStyleRes); |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 159 | |
| 160 | final Resources res = context.getResources(); |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 161 | mDayOfWeekTypeface = res.getString(R.string.day_of_week_label_typeface); |
| 162 | mMonthTitleTypeface = res.getString(R.string.sans_serif); |
| 163 | |
| 164 | mStringBuilder = new StringBuilder(50); |
| 165 | mFormatter = new Formatter(mStringBuilder, Locale.getDefault()); |
| 166 | |
| 167 | mMiniDayNumberTextSize = res.getDimensionPixelSize(R.dimen.datepicker_day_number_size); |
| 168 | mMonthLabelTextSize = res.getDimensionPixelSize(R.dimen.datepicker_month_label_size); |
| 169 | mMonthDayLabelTextSize = res.getDimensionPixelSize( |
| 170 | R.dimen.datepicker_month_day_label_text_size); |
| 171 | mMonthHeaderSize = res.getDimensionPixelOffset( |
| 172 | R.dimen.datepicker_month_list_item_header_height); |
| 173 | mDaySelectedCircleSize = res.getDimensionPixelSize( |
| 174 | R.dimen.datepicker_day_number_select_circle_radius); |
| 175 | |
| 176 | mRowHeight = (res.getDimensionPixelOffset(R.dimen.datepicker_view_animator_height) |
| 177 | - mMonthHeaderSize) / MAX_NUM_ROWS; |
| 178 | |
| 179 | // Set up accessibility components. |
| 180 | mTouchHelper = new MonthViewTouchHelper(this); |
| 181 | setAccessibilityDelegate(mTouchHelper); |
| 182 | setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); |
| 183 | mLockAccessibilityDelegate = true; |
| 184 | |
| 185 | // Sets up any standard paints that will be used |
| 186 | initView(); |
| 187 | } |
| 188 | |
Alan Viverette | fd2dd208 | 2014-08-19 18:11:54 -0700 | [diff] [blame] | 189 | @Override |
| 190 | protected void onConfigurationChanged(Configuration newConfig) { |
| 191 | super.onConfigurationChanged(newConfig); |
| 192 | |
| 193 | mDayFormatter = new SimpleDateFormat("EEEEE", newConfig.locale); |
| 194 | } |
| 195 | |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 196 | void setTextColor(ColorStateList colors) { |
| 197 | final Resources res = getContext().getResources(); |
| 198 | |
| 199 | mNormalTextColor = colors.getColorForState(ENABLED_STATE_SET, |
| 200 | res.getColor(R.color.datepicker_default_normal_text_color_holo_light)); |
| 201 | mMonthTitlePaint.setColor(mNormalTextColor); |
| 202 | mMonthDayLabelPaint.setColor(mNormalTextColor); |
| 203 | |
| 204 | mDisabledTextColor = colors.getColorForState(EMPTY_STATE_SET, |
| 205 | res.getColor(R.color.datepicker_default_disabled_text_color_holo_light)); |
| 206 | mDayNumberDisabledPaint.setColor(mDisabledTextColor); |
| 207 | |
| 208 | mSelectedDayColor = colors.getColorForState(ENABLED_SELECTED_STATE_SET, |
| 209 | res.getColor(R.color.holo_blue_light)); |
| 210 | mDayNumberSelectedPaint.setColor(mSelectedDayColor); |
| 211 | mDayNumberSelectedPaint.setAlpha(SELECTED_CIRCLE_ALPHA); |
| 212 | } |
| 213 | |
| 214 | @Override |
| 215 | public void setAccessibilityDelegate(AccessibilityDelegate delegate) { |
| 216 | // Workaround for a JB MR1 issue where accessibility delegates on |
| 217 | // top-level ListView items are overwritten. |
| 218 | if (!mLockAccessibilityDelegate) { |
| 219 | super.setAccessibilityDelegate(delegate); |
| 220 | } |
| 221 | } |
| 222 | |
| 223 | public void setOnDayClickListener(OnDayClickListener listener) { |
| 224 | mOnDayClickListener = listener; |
| 225 | } |
| 226 | |
| 227 | @Override |
| 228 | public boolean dispatchHoverEvent(MotionEvent event) { |
| 229 | // First right-of-refusal goes the touch exploration helper. |
| 230 | if (mTouchHelper.dispatchHoverEvent(event)) { |
| 231 | return true; |
| 232 | } |
| 233 | return super.dispatchHoverEvent(event); |
| 234 | } |
| 235 | |
| 236 | @Override |
| 237 | public boolean onTouchEvent(MotionEvent event) { |
| 238 | switch (event.getAction()) { |
| 239 | case MotionEvent.ACTION_UP: |
| 240 | final int day = getDayFromLocation(event.getX(), event.getY()); |
| 241 | if (day >= 0) { |
| 242 | onDayClick(day); |
| 243 | } |
| 244 | break; |
| 245 | } |
| 246 | return true; |
| 247 | } |
| 248 | |
| 249 | /** |
| 250 | * Sets up the text and style properties for painting. |
| 251 | */ |
| 252 | private void initView() { |
| 253 | mMonthTitlePaint = new Paint(); |
| 254 | mMonthTitlePaint.setAntiAlias(true); |
| 255 | mMonthTitlePaint.setColor(mNormalTextColor); |
| 256 | mMonthTitlePaint.setTextSize(mMonthLabelTextSize); |
| 257 | mMonthTitlePaint.setTypeface(Typeface.create(mMonthTitleTypeface, Typeface.BOLD)); |
| 258 | mMonthTitlePaint.setTextAlign(Align.CENTER); |
| 259 | mMonthTitlePaint.setStyle(Style.FILL); |
| 260 | mMonthTitlePaint.setFakeBoldText(true); |
| 261 | |
| 262 | mMonthDayLabelPaint = new Paint(); |
| 263 | mMonthDayLabelPaint.setAntiAlias(true); |
| 264 | mMonthDayLabelPaint.setColor(mNormalTextColor); |
| 265 | mMonthDayLabelPaint.setTextSize(mMonthDayLabelTextSize); |
| 266 | mMonthDayLabelPaint.setTypeface(Typeface.create(mDayOfWeekTypeface, Typeface.NORMAL)); |
| 267 | mMonthDayLabelPaint.setTextAlign(Align.CENTER); |
| 268 | mMonthDayLabelPaint.setStyle(Style.FILL); |
| 269 | mMonthDayLabelPaint.setFakeBoldText(true); |
| 270 | |
| 271 | mDayNumberSelectedPaint = new Paint(); |
| 272 | mDayNumberSelectedPaint.setAntiAlias(true); |
| 273 | mDayNumberSelectedPaint.setColor(mSelectedDayColor); |
| 274 | mDayNumberSelectedPaint.setAlpha(SELECTED_CIRCLE_ALPHA); |
| 275 | mDayNumberSelectedPaint.setTextAlign(Align.CENTER); |
| 276 | mDayNumberSelectedPaint.setStyle(Style.FILL); |
| 277 | mDayNumberSelectedPaint.setFakeBoldText(true); |
| 278 | |
| 279 | mDayNumberPaint = new Paint(); |
| 280 | mDayNumberPaint.setAntiAlias(true); |
| 281 | mDayNumberPaint.setTextSize(mMiniDayNumberTextSize); |
| 282 | mDayNumberPaint.setTextAlign(Align.CENTER); |
| 283 | mDayNumberPaint.setStyle(Style.FILL); |
| 284 | mDayNumberPaint.setFakeBoldText(false); |
| 285 | |
| 286 | mDayNumberDisabledPaint = new Paint(); |
| 287 | mDayNumberDisabledPaint.setAntiAlias(true); |
| 288 | mDayNumberDisabledPaint.setColor(mDisabledTextColor); |
| 289 | mDayNumberDisabledPaint.setTextSize(mMiniDayNumberTextSize); |
| 290 | mDayNumberDisabledPaint.setTextAlign(Align.CENTER); |
| 291 | mDayNumberDisabledPaint.setStyle(Style.FILL); |
| 292 | mDayNumberDisabledPaint.setFakeBoldText(false); |
| 293 | } |
| 294 | |
| 295 | @Override |
| 296 | protected void onDraw(Canvas canvas) { |
| 297 | drawMonthTitle(canvas); |
| 298 | drawWeekDayLabels(canvas); |
| 299 | drawDays(canvas); |
| 300 | } |
| 301 | |
Alan Viverette | 518ff0d | 2014-08-15 14:20:35 -0700 | [diff] [blame] | 302 | private static boolean isValidDayOfWeek(int day) { |
Alan Viverette | 5878076 | 2014-09-10 17:09:13 -0700 | [diff] [blame] | 303 | return day >= Calendar.SUNDAY && day <= Calendar.SATURDAY; |
| 304 | } |
| 305 | |
| 306 | private static boolean isValidMonth(int month) { |
| 307 | return month >= Calendar.JANUARY && month <= Calendar.DECEMBER; |
Fabrice Di Meglio | 75b1215 | 2014-07-25 15:26:18 -0700 | [diff] [blame] | 308 | } |
| 309 | |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 310 | /** |
Fabrice Di Meglio | 75b1215 | 2014-07-25 15:26:18 -0700 | [diff] [blame] | 311 | * Sets all the parameters for displaying this week. Parameters have a default value and |
| 312 | * will only update if a new value is included, except for focus month, which will always |
| 313 | * default to no focus month if no value is passed in. The only required parameter is the |
| 314 | * week start. |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 315 | * |
Alan Viverette | 518ff0d | 2014-08-15 14:20:35 -0700 | [diff] [blame] | 316 | * @param selectedDay the selected day of the month, or -1 for no selection. |
Fabrice Di Meglio | 75b1215 | 2014-07-25 15:26:18 -0700 | [diff] [blame] | 317 | * @param month the month. |
| 318 | * @param year the year. |
Alan Viverette | 5878076 | 2014-09-10 17:09:13 -0700 | [diff] [blame] | 319 | * @param weekStart which day the week should start on. {@link Calendar#SUNDAY} through |
| 320 | * {@link Calendar#SATURDAY}. |
Fabrice Di Meglio | 75b1215 | 2014-07-25 15:26:18 -0700 | [diff] [blame] | 321 | * @param enabledDayStart the first enabled day. |
| 322 | * @param enabledDayEnd the last enabled day. |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 323 | */ |
Fabrice Di Meglio | 75b1215 | 2014-07-25 15:26:18 -0700 | [diff] [blame] | 324 | void setMonthParams(int selectedDay, int month, int year, int weekStart, int enabledDayStart, |
| 325 | int enabledDayEnd) { |
| 326 | if (mRowHeight < MIN_HEIGHT) { |
| 327 | mRowHeight = MIN_HEIGHT; |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 328 | } |
| 329 | |
Alan Viverette | 518ff0d | 2014-08-15 14:20:35 -0700 | [diff] [blame] | 330 | mSelectedDay = selectedDay; |
Fabrice Di Meglio | 75b1215 | 2014-07-25 15:26:18 -0700 | [diff] [blame] | 331 | |
Alan Viverette | 5878076 | 2014-09-10 17:09:13 -0700 | [diff] [blame] | 332 | if (isValidMonth(month)) { |
Fabrice Di Meglio | 75b1215 | 2014-07-25 15:26:18 -0700 | [diff] [blame] | 333 | mMonth = month; |
| 334 | } |
| 335 | mYear = year; |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 336 | |
| 337 | // Figure out what day today is |
| 338 | final Time today = new Time(Time.getCurrentTimezone()); |
| 339 | today.setToNow(); |
| 340 | mHasToday = false; |
| 341 | mToday = -1; |
| 342 | |
| 343 | mCalendar.set(Calendar.MONTH, mMonth); |
| 344 | mCalendar.set(Calendar.YEAR, mYear); |
| 345 | mCalendar.set(Calendar.DAY_OF_MONTH, 1); |
| 346 | mDayOfWeekStart = mCalendar.get(Calendar.DAY_OF_WEEK); |
| 347 | |
Alan Viverette | 518ff0d | 2014-08-15 14:20:35 -0700 | [diff] [blame] | 348 | if (isValidDayOfWeek(weekStart)) { |
Fabrice Di Meglio | 75b1215 | 2014-07-25 15:26:18 -0700 | [diff] [blame] | 349 | mWeekStart = weekStart; |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 350 | } else { |
| 351 | mWeekStart = mCalendar.getFirstDayOfWeek(); |
| 352 | } |
| 353 | |
Fabrice Di Meglio | 75b1215 | 2014-07-25 15:26:18 -0700 | [diff] [blame] | 354 | if (enabledDayStart > 0 && enabledDayEnd < 32) { |
| 355 | mEnabledDayStart = enabledDayStart; |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 356 | } |
Fabrice Di Meglio | 75b1215 | 2014-07-25 15:26:18 -0700 | [diff] [blame] | 357 | if (enabledDayEnd > 0 && enabledDayEnd < 32 && enabledDayEnd >= enabledDayStart) { |
| 358 | mEnabledDayEnd = enabledDayEnd; |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 359 | } |
| 360 | |
| 361 | mNumCells = getDaysInMonth(mMonth, mYear); |
| 362 | for (int i = 0; i < mNumCells; i++) { |
| 363 | final int day = i + 1; |
| 364 | if (sameDay(day, today)) { |
| 365 | mHasToday = true; |
| 366 | mToday = day; |
| 367 | } |
| 368 | } |
| 369 | mNumRows = calculateNumRows(); |
| 370 | |
| 371 | // Invalidate cached accessibility information. |
| 372 | mTouchHelper.invalidateRoot(); |
| 373 | } |
| 374 | |
| 375 | private static int getDaysInMonth(int month, int year) { |
| 376 | switch (month) { |
| 377 | case Calendar.JANUARY: |
| 378 | case Calendar.MARCH: |
| 379 | case Calendar.MAY: |
| 380 | case Calendar.JULY: |
| 381 | case Calendar.AUGUST: |
| 382 | case Calendar.OCTOBER: |
| 383 | case Calendar.DECEMBER: |
| 384 | return 31; |
| 385 | case Calendar.APRIL: |
| 386 | case Calendar.JUNE: |
| 387 | case Calendar.SEPTEMBER: |
| 388 | case Calendar.NOVEMBER: |
| 389 | return 30; |
| 390 | case Calendar.FEBRUARY: |
| 391 | return (year % 4 == 0) ? 29 : 28; |
| 392 | default: |
| 393 | throw new IllegalArgumentException("Invalid Month"); |
| 394 | } |
| 395 | } |
| 396 | |
| 397 | public void reuse() { |
| 398 | mNumRows = DEFAULT_NUM_ROWS; |
| 399 | requestLayout(); |
| 400 | } |
| 401 | |
| 402 | private int calculateNumRows() { |
| 403 | int offset = findDayOffset(); |
| 404 | int dividend = (offset + mNumCells) / mNumDays; |
| 405 | int remainder = (offset + mNumCells) % mNumDays; |
| 406 | return (dividend + (remainder > 0 ? 1 : 0)); |
| 407 | } |
| 408 | |
| 409 | private boolean sameDay(int day, Time today) { |
| 410 | return mYear == today.year && |
| 411 | mMonth == today.month && |
| 412 | day == today.monthDay; |
| 413 | } |
| 414 | |
| 415 | @Override |
| 416 | protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { |
| 417 | setMeasuredDimension(MeasureSpec.getSize(widthMeasureSpec), mRowHeight * mNumRows |
| 418 | + mMonthHeaderSize); |
| 419 | } |
| 420 | |
| 421 | @Override |
| 422 | protected void onSizeChanged(int w, int h, int oldw, int oldh) { |
| 423 | mWidth = w; |
| 424 | |
| 425 | // Invalidate cached accessibility information. |
| 426 | mTouchHelper.invalidateRoot(); |
| 427 | } |
| 428 | |
| 429 | private String getMonthAndYearString() { |
| 430 | int flags = DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_SHOW_YEAR |
| 431 | | DateUtils.FORMAT_NO_MONTH_DAY; |
| 432 | mStringBuilder.setLength(0); |
| 433 | long millis = mCalendar.getTimeInMillis(); |
| 434 | return DateUtils.formatDateRange(getContext(), mFormatter, millis, millis, flags, |
| 435 | Time.getCurrentTimezone()).toString(); |
| 436 | } |
| 437 | |
| 438 | private void drawMonthTitle(Canvas canvas) { |
Alan Viverette | 518ff0d | 2014-08-15 14:20:35 -0700 | [diff] [blame] | 439 | final float x = (mWidth + 2 * mPadding) / 2f; |
| 440 | final float y = (mMonthHeaderSize - mMonthDayLabelTextSize) / 2f; |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 441 | canvas.drawText(getMonthAndYearString(), x, y, mMonthTitlePaint); |
| 442 | } |
| 443 | |
| 444 | private void drawWeekDayLabels(Canvas canvas) { |
Alan Viverette | fd2dd208 | 2014-08-19 18:11:54 -0700 | [diff] [blame] | 445 | final int y = mMonthHeaderSize - (mMonthDayLabelTextSize / 2); |
| 446 | final int dayWidthHalf = (mWidth - mPadding * 2) / (mNumDays * 2); |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 447 | |
| 448 | for (int i = 0; i < mNumDays; i++) { |
Alan Viverette | fd2dd208 | 2014-08-19 18:11:54 -0700 | [diff] [blame] | 449 | final int calendarDay = (i + mWeekStart) % mNumDays; |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 450 | mDayLabelCalendar.set(Calendar.DAY_OF_WEEK, calendarDay); |
Alan Viverette | fd2dd208 | 2014-08-19 18:11:54 -0700 | [diff] [blame] | 451 | |
| 452 | final String dayLabel = mDayFormatter.format(mDayLabelCalendar.getTime()); |
| 453 | final int x = (2 * i + 1) * dayWidthHalf + mPadding; |
| 454 | canvas.drawText(dayLabel, x, y, mMonthDayLabelPaint); |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 455 | } |
| 456 | } |
| 457 | |
| 458 | /** |
| 459 | * Draws the month days. |
| 460 | */ |
| 461 | private void drawDays(Canvas canvas) { |
| 462 | int y = (((mRowHeight + mMiniDayNumberTextSize) / 2) - DAY_SEPARATOR_WIDTH) |
| 463 | + mMonthHeaderSize; |
| 464 | int dayWidthHalf = (mWidth - mPadding * 2) / (mNumDays * 2); |
| 465 | int j = findDayOffset(); |
| 466 | for (int day = 1; day <= mNumCells; day++) { |
| 467 | int x = (2 * j + 1) * dayWidthHalf + mPadding; |
| 468 | if (mSelectedDay == day) { |
| 469 | canvas.drawCircle(x, y - (mMiniDayNumberTextSize / 3), mDaySelectedCircleSize, |
| 470 | mDayNumberSelectedPaint); |
| 471 | } |
| 472 | |
| 473 | if (mHasToday && mToday == day) { |
| 474 | mDayNumberPaint.setColor(mSelectedDayColor); |
| 475 | } else { |
| 476 | mDayNumberPaint.setColor(mNormalTextColor); |
| 477 | } |
| 478 | final Paint paint = (day < mEnabledDayStart || day > mEnabledDayEnd) ? |
| 479 | mDayNumberDisabledPaint : mDayNumberPaint; |
| 480 | canvas.drawText(String.format("%d", day), x, y, paint); |
| 481 | j++; |
| 482 | if (j == mNumDays) { |
| 483 | j = 0; |
| 484 | y += mRowHeight; |
| 485 | } |
| 486 | } |
| 487 | } |
| 488 | |
| 489 | private int findDayOffset() { |
| 490 | return (mDayOfWeekStart < mWeekStart ? (mDayOfWeekStart + mNumDays) : mDayOfWeekStart) |
| 491 | - mWeekStart; |
| 492 | } |
| 493 | |
| 494 | /** |
| 495 | * Calculates the day that the given x position is in, accounting for week |
| 496 | * number. Returns the day or -1 if the position wasn't in a day. |
| 497 | * |
| 498 | * @param x The x position of the touch event |
| 499 | * @return The day number, or -1 if the position wasn't in a day |
| 500 | */ |
| 501 | private int getDayFromLocation(float x, float y) { |
| 502 | int dayStart = mPadding; |
| 503 | if (x < dayStart || x > mWidth - mPadding) { |
| 504 | return -1; |
| 505 | } |
| 506 | // Selection is (x - start) / (pixels/day) == (x -s) * day / pixels |
| 507 | int row = (int) (y - mMonthHeaderSize) / mRowHeight; |
| 508 | int column = (int) ((x - dayStart) * mNumDays / (mWidth - dayStart - mPadding)); |
| 509 | |
| 510 | int day = column - findDayOffset() + 1; |
| 511 | day += row * mNumDays; |
| 512 | if (day < 1 || day > mNumCells) { |
| 513 | return -1; |
| 514 | } |
| 515 | return day; |
| 516 | } |
| 517 | |
| 518 | /** |
| 519 | * Called when the user clicks on a day. Handles callbacks to the |
| 520 | * {@link OnDayClickListener} if one is set. |
| 521 | * |
| 522 | * @param day The day that was clicked |
| 523 | */ |
| 524 | private void onDayClick(int day) { |
| 525 | if (mOnDayClickListener != null) { |
| 526 | Calendar date = Calendar.getInstance(); |
| 527 | date.set(mYear, mMonth, day); |
| 528 | mOnDayClickListener.onDayClick(this, date); |
| 529 | } |
| 530 | |
| 531 | // This is a no-op if accessibility is turned off. |
| 532 | mTouchHelper.sendEventForVirtualView(day, AccessibilityEvent.TYPE_VIEW_CLICKED); |
| 533 | } |
| 534 | |
| 535 | /** |
| 536 | * @return The date that has accessibility focus, or {@code null} if no date |
| 537 | * has focus |
| 538 | */ |
| 539 | Calendar getAccessibilityFocus() { |
| 540 | final int day = mTouchHelper.getFocusedVirtualView(); |
| 541 | Calendar date = null; |
| 542 | if (day >= 0) { |
| 543 | date = Calendar.getInstance(); |
| 544 | date.set(mYear, mMonth, day); |
| 545 | } |
| 546 | return date; |
| 547 | } |
| 548 | |
| 549 | /** |
| 550 | * Clears accessibility focus within the view. No-op if the view does not |
| 551 | * contain accessibility focus. |
| 552 | */ |
| 553 | public void clearAccessibilityFocus() { |
| 554 | mTouchHelper.clearFocusedVirtualView(); |
| 555 | } |
| 556 | |
| 557 | /** |
| 558 | * Attempts to restore accessibility focus to the specified date. |
| 559 | * |
| 560 | * @param day The date which should receive focus |
| 561 | * @return {@code false} if the date is not valid for this month view, or |
| 562 | * {@code true} if the date received focus |
| 563 | */ |
| 564 | boolean restoreAccessibilityFocus(Calendar day) { |
| 565 | if ((day.get(Calendar.YEAR) != mYear) || (day.get(Calendar.MONTH) != mMonth) || |
| 566 | (day.get(Calendar.DAY_OF_MONTH) > mNumCells)) { |
| 567 | return false; |
| 568 | } |
| 569 | mTouchHelper.setFocusedVirtualView(day.get(Calendar.DAY_OF_MONTH)); |
| 570 | return true; |
| 571 | } |
| 572 | |
| 573 | /** |
| 574 | * Provides a virtual view hierarchy for interfacing with an accessibility |
| 575 | * service. |
| 576 | */ |
| 577 | private class MonthViewTouchHelper extends ExploreByTouchHelper { |
| 578 | private static final String DATE_FORMAT = "dd MMMM yyyy"; |
| 579 | |
| 580 | private final Rect mTempRect = new Rect(); |
| 581 | private final Calendar mTempCalendar = Calendar.getInstance(); |
| 582 | |
| 583 | public MonthViewTouchHelper(View host) { |
| 584 | super(host); |
| 585 | } |
| 586 | |
| 587 | public void setFocusedVirtualView(int virtualViewId) { |
| 588 | getAccessibilityNodeProvider(SimpleMonthView.this).performAction( |
| 589 | virtualViewId, AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS, null); |
| 590 | } |
| 591 | |
| 592 | public void clearFocusedVirtualView() { |
| 593 | final int focusedVirtualView = getFocusedVirtualView(); |
| 594 | if (focusedVirtualView != ExploreByTouchHelper.INVALID_ID) { |
| 595 | getAccessibilityNodeProvider(SimpleMonthView.this).performAction( |
| 596 | focusedVirtualView, |
| 597 | AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS, |
| 598 | null); |
| 599 | } |
| 600 | } |
| 601 | |
| 602 | @Override |
| 603 | protected int getVirtualViewAt(float x, float y) { |
| 604 | final int day = getDayFromLocation(x, y); |
| 605 | if (day >= 0) { |
| 606 | return day; |
| 607 | } |
| 608 | return ExploreByTouchHelper.INVALID_ID; |
| 609 | } |
| 610 | |
| 611 | @Override |
Alan Viverette | ffb46bf | 2014-10-24 12:06:11 -0700 | [diff] [blame] | 612 | protected void getVisibleVirtualViews(IntArray virtualViewIds) { |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 613 | for (int day = 1; day <= mNumCells; day++) { |
| 614 | virtualViewIds.add(day); |
| 615 | } |
| 616 | } |
| 617 | |
| 618 | @Override |
| 619 | protected void onPopulateEventForVirtualView(int virtualViewId, AccessibilityEvent event) { |
| 620 | event.setContentDescription(getItemDescription(virtualViewId)); |
| 621 | } |
| 622 | |
| 623 | @Override |
| 624 | protected void onPopulateNodeForVirtualView(int virtualViewId, AccessibilityNodeInfo node) { |
| 625 | getItemBounds(virtualViewId, mTempRect); |
| 626 | |
| 627 | node.setContentDescription(getItemDescription(virtualViewId)); |
| 628 | node.setBoundsInParent(mTempRect); |
| 629 | node.addAction(AccessibilityNodeInfo.ACTION_CLICK); |
| 630 | |
| 631 | if (virtualViewId == mSelectedDay) { |
| 632 | node.setSelected(true); |
| 633 | } |
| 634 | |
| 635 | } |
| 636 | |
| 637 | @Override |
| 638 | protected boolean onPerformActionForVirtualView(int virtualViewId, int action, |
| 639 | Bundle arguments) { |
| 640 | switch (action) { |
| 641 | case AccessibilityNodeInfo.ACTION_CLICK: |
| 642 | onDayClick(virtualViewId); |
| 643 | return true; |
| 644 | } |
| 645 | |
| 646 | return false; |
| 647 | } |
| 648 | |
| 649 | /** |
| 650 | * Calculates the bounding rectangle of a given time object. |
| 651 | * |
| 652 | * @param day The day to calculate bounds for |
| 653 | * @param rect The rectangle in which to store the bounds |
| 654 | */ |
| 655 | private void getItemBounds(int day, Rect rect) { |
| 656 | final int offsetX = mPadding; |
| 657 | final int offsetY = mMonthHeaderSize; |
| 658 | final int cellHeight = mRowHeight; |
| 659 | final int cellWidth = ((mWidth - (2 * mPadding)) / mNumDays); |
| 660 | final int index = ((day - 1) + findDayOffset()); |
| 661 | final int row = (index / mNumDays); |
| 662 | final int column = (index % mNumDays); |
| 663 | final int x = (offsetX + (column * cellWidth)); |
| 664 | final int y = (offsetY + (row * cellHeight)); |
| 665 | |
| 666 | rect.set(x, y, (x + cellWidth), (y + cellHeight)); |
| 667 | } |
| 668 | |
| 669 | /** |
| 670 | * Generates a description for a given time object. Since this |
| 671 | * description will be spoken, the components are ordered by descending |
| 672 | * specificity as DAY MONTH YEAR. |
| 673 | * |
| 674 | * @param day The day to generate a description for |
| 675 | * @return A description of the time object |
| 676 | */ |
| 677 | private CharSequence getItemDescription(int day) { |
| 678 | mTempCalendar.set(mYear, mMonth, day); |
| 679 | final CharSequence date = DateFormat.format(DATE_FORMAT, |
| 680 | mTempCalendar.getTimeInMillis()); |
| 681 | |
| 682 | if (day == mSelectedDay) { |
| 683 | return getContext().getString(R.string.item_is_selected, date); |
| 684 | } |
| 685 | |
| 686 | return date; |
| 687 | } |
| 688 | } |
| 689 | |
| 690 | /** |
| 691 | * Handles callbacks when the user clicks on a time object. |
| 692 | */ |
| 693 | public interface OnDayClickListener { |
| 694 | public void onDayClick(SimpleMonthView view, Calendar day); |
| 695 | } |
| 696 | } |