RecipientEditTextView.java revision 567ef28b55e35104060a3f3e7413b63e4590c73b
1bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant/* 2bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant * Copyright (C) 2011 The Android Open Source Project 3f5256e16dfc425c1d466f6308d4026d529ce9e0bHoward Hinnant * 4bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant * Licensed under the Apache License, Version 2.0 (the "License"); 5b64f8b07c104c6cc986570ac8ee0ed16a9f23976Howard Hinnant * you may not use this file except in compliance with the License. 6b64f8b07c104c6cc986570ac8ee0ed16a9f23976Howard Hinnant * You may obtain a copy of the License at 7bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant * 8bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant * http://www.apache.org/licenses/LICENSE-2.0 9bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant * 10bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant * Unless required by applicable law or agreed to in writing, software 11bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant * distributed under the License is distributed on an "AS IS" BASIS, 12bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant * See the License for the specific language governing permissions and 14bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant * limitations under the License. 15bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant */ 16bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 17bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantpackage com.android.ex.chips; 18bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 19061d0cc4db18d17bf01ed14c5db0be098205bd47Marshall Clowimport android.app.Dialog; 2070342b99e227912742972b754ad86e75c5d7eefbHoward Hinnantimport android.content.ClipData; 21bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.content.ClipboardManager; 22bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.content.Context; 23bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.content.DialogInterface; 24bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.content.DialogInterface.OnDismissListener; 25bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.graphics.Bitmap; 26bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.graphics.BitmapFactory; 27bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.graphics.Canvas; 28bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.graphics.Matrix; 29bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.graphics.Rect; 30bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.graphics.RectF; 31bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.graphics.drawable.BitmapDrawable; 32bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.graphics.drawable.Drawable; 33bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.os.AsyncTask; 34bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.os.Handler; 35bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.os.Message; 36bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.text.Editable; 37bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.text.Layout; 38bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.text.Spannable; 39bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.text.SpannableString; 40bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.text.SpannableStringBuilder; 41bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.text.Spanned; 4270342b99e227912742972b754ad86e75c5d7eefbHoward Hinnantimport android.text.TextPaint; 4370342b99e227912742972b754ad86e75c5d7eefbHoward Hinnantimport android.text.TextUtils; 4470342b99e227912742972b754ad86e75c5d7eefbHoward Hinnantimport android.text.TextWatcher; 4570342b99e227912742972b754ad86e75c5d7eefbHoward Hinnantimport android.text.method.QwertyKeyListener; 4670342b99e227912742972b754ad86e75c5d7eefbHoward Hinnantimport android.text.style.ImageSpan; 4770342b99e227912742972b754ad86e75c5d7eefbHoward Hinnantimport android.text.util.Rfc822Token; 4870342b99e227912742972b754ad86e75c5d7eefbHoward Hinnantimport android.text.util.Rfc822Tokenizer; 4970342b99e227912742972b754ad86e75c5d7eefbHoward Hinnantimport android.util.AttributeSet; 5070342b99e227912742972b754ad86e75c5d7eefbHoward Hinnantimport android.util.Log; 5170342b99e227912742972b754ad86e75c5d7eefbHoward Hinnantimport android.view.ActionMode; 5270342b99e227912742972b754ad86e75c5d7eefbHoward Hinnantimport android.view.ActionMode.Callback; 5370342b99e227912742972b754ad86e75c5d7eefbHoward Hinnantimport android.view.View.OnClickListener; 5470342b99e227912742972b754ad86e75c5d7eefbHoward Hinnantimport android.view.GestureDetector; 5570342b99e227912742972b754ad86e75c5d7eefbHoward Hinnantimport android.view.KeyEvent; 5670342b99e227912742972b754ad86e75c5d7eefbHoward Hinnantimport android.view.LayoutInflater; 5770342b99e227912742972b754ad86e75c5d7eefbHoward Hinnantimport android.view.Menu; 5870342b99e227912742972b754ad86e75c5d7eefbHoward Hinnantimport android.view.MenuItem; 5970342b99e227912742972b754ad86e75c5d7eefbHoward Hinnantimport android.view.MotionEvent; 6070342b99e227912742972b754ad86e75c5d7eefbHoward Hinnantimport android.view.View; 6170342b99e227912742972b754ad86e75c5d7eefbHoward Hinnantimport android.view.ViewParent; 6270342b99e227912742972b754ad86e75c5d7eefbHoward Hinnantimport android.widget.AdapterView; 63bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantimport android.widget.AdapterView.OnItemClickListener; 64import android.widget.Filterable; 65import android.widget.ListAdapter; 66import android.widget.ListPopupWindow; 67import android.widget.ListView; 68import android.widget.MultiAutoCompleteTextView; 69import android.widget.ScrollView; 70import android.widget.TextView; 71 72import java.util.ArrayList; 73import java.util.Collection; 74import java.util.HashMap; 75import java.util.HashSet; 76import java.util.Set; 77 78/** 79 * RecipientEditTextView is an auto complete text view for use with applications 80 * that use the new Chips UI for addressing a message to recipients. 81 */ 82public class RecipientEditTextView extends MultiAutoCompleteTextView implements 83 OnItemClickListener, Callback, RecipientAlternatesAdapter.OnCheckedItemChangedListener, 84 GestureDetector.OnGestureListener, OnDismissListener, OnClickListener { 85 86 private static final String TAG = "RecipientEditTextView"; 87 88 // TODO: get correct number/ algorithm from with UX. 89 private static final int CHIP_LIMIT = 2; 90 91 private Drawable mChipBackground = null; 92 93 private Drawable mChipDelete = null; 94 95 private int mChipPadding; 96 97 private Tokenizer mTokenizer; 98 99 private Drawable mChipBackgroundPressed; 100 101 private RecipientChip mSelectedChip; 102 103 private int mAlternatesLayout; 104 105 private Bitmap mDefaultContactPhoto; 106 107 private ImageSpan mMoreChip; 108 109 private TextView mMoreItem; 110 111 private final ArrayList<String> mPendingChips = new ArrayList<String>(); 112 113 private float mChipHeight; 114 115 private float mChipFontSize; 116 117 private Validator mValidator; 118 119 private Drawable mInvalidChipBackground; 120 121 private Handler mHandler; 122 123 private static int DISMISS = "dismiss".hashCode(); 124 125 private static final long DISMISS_DELAY = 300; 126 127 private int mPendingChipsCount = 0; 128 129 private static int sSelectedTextColor = -1; 130 131 private static final char COMMIT_CHAR_COMMA = ','; 132 133 private static final char COMMIT_CHAR_SEMICOLON = ';'; 134 135 private static final char COMMIT_CHAR_SPACE = ' '; 136 137 private ListPopupWindow mAlternatesPopup; 138 139 private ListPopupWindow mAddressPopup; 140 141 private ArrayList<RecipientChip> mTemporaryRecipients; 142 143 private ArrayList<RecipientChip> mRemovedSpans; 144 145 private boolean mShouldShrink = true; 146 147 // Chip copy fields. 148 private GestureDetector mGestureDetector; 149 150 private Dialog mCopyDialog; 151 152 private int mCopyViewRes; 153 154 private String mCopyAddress; 155 156 /** 157 * Used with {@link #mAlternatesPopup}. Handles clicks to alternate addresses for a 158 * selected chip. 159 */ 160 private OnItemClickListener mAlternatesListener; 161 162 private int mCheckedItem; 163 private TextWatcher mTextWatcher; 164 165 private ScrollView mScrollView; 166 167 private boolean mTried; 168 169 private final Runnable mAddTextWatcher = new Runnable() { 170 @Override 171 public void run() { 172 if (mTextWatcher == null) { 173 mTextWatcher = new RecipientTextWatcher(); 174 addTextChangedListener(mTextWatcher); 175 } 176 } 177 }; 178 179 private IndividualReplacementTask mIndividualReplacements; 180 181 private Runnable mHandlePendingChips = new Runnable() { 182 183 @Override 184 public void run() { 185 handlePendingChips(); 186 } 187 188 }; 189 190 public RecipientEditTextView(Context context, AttributeSet attrs) { 191 super(context, attrs); 192 if (sSelectedTextColor == -1) { 193 sSelectedTextColor = context.getResources().getColor(android.R.color.white); 194 } 195 mAlternatesPopup = new ListPopupWindow(context); 196 mAddressPopup = new ListPopupWindow(context); 197 mAlternatesListener = new OnItemClickListener() { 198 @Override 199 public void onItemClick(AdapterView<?> adapterView,View view, int position, 200 long rowId) { 201 mAlternatesPopup.setOnItemClickListener(null); 202 replaceChip(mSelectedChip, ((RecipientAlternatesAdapter) adapterView.getAdapter()) 203 .getRecipientEntry(position)); 204 Message delayed = Message.obtain(mHandler, DISMISS); 205 delayed.obj = mAlternatesPopup; 206 mHandler.sendMessageDelayed(delayed, DISMISS_DELAY); 207 clearComposingText(); 208 } 209 }; 210 setSuggestionsEnabled(false); 211 setOnItemClickListener(this); 212 setCustomSelectionActionModeCallback(this); 213 mHandler = new Handler() { 214 @Override 215 public void handleMessage(Message msg) { 216 if (msg.what == DISMISS) { 217 ((ListPopupWindow) msg.obj).dismiss(); 218 return; 219 } 220 super.handleMessage(msg); 221 } 222 }; 223 mTextWatcher = new RecipientTextWatcher(); 224 addTextChangedListener(mTextWatcher); 225 mGestureDetector = new GestureDetector(context, this); 226 } 227 228 @Override 229 public <T extends ListAdapter & Filterable> void setAdapter(T adapter) { 230 super.setAdapter(adapter); 231 if (adapter == null) { 232 return; 233 } 234 } 235 236 @Override 237 public void onSelectionChanged(int start, int end) { 238 // When selection changes, see if it is inside the chips area. 239 // If so, move the cursor back after the chips again. 240 Spannable span = getSpannable(); 241 int textLength = getText().length(); 242 RecipientChip[] chips = span.getSpans(start, textLength, RecipientChip.class); 243 if (chips != null && chips.length > 0) { 244 if (chips != null && chips.length > 0) { 245 // Grab the last chip and set the cursor to after it. 246 setSelection(Math.min(span.getSpanEnd(chips[chips.length - 1]) + 1, textLength)); 247 } 248 } 249 super.onSelectionChanged(start, end); 250 } 251 252 /** 253 * Convenience method: Append the specified text slice to the TextView's 254 * display buffer, upgrading it to BufferType.EDITABLE if it was 255 * not already editable. Commas are excluded as they are added automatically 256 * by the view. 257 */ 258 @Override 259 public void append(CharSequence text, int start, int end) { 260 // We don't care about watching text changes while appending. 261 if (mTextWatcher != null) { 262 removeTextChangedListener(mTextWatcher); 263 } 264 super.append(text, start, end); 265 if (!TextUtils.isEmpty(text) && TextUtils.getTrimmedLength(text) > 0) { 266 final String displayString = (String) text; 267 int seperatorPos = displayString.indexOf(COMMIT_CHAR_COMMA); 268 if (seperatorPos != 0 && !TextUtils.isEmpty(displayString) 269 && TextUtils.getTrimmedLength(displayString) > 0) { 270 mPendingChipsCount++; 271 mPendingChips.add((String)text); 272 } 273 } 274 // Put a message on the queue to make sure we ALWAYS handle pending chips. 275 if (mPendingChipsCount > 0) { 276 postHandlePendingChips(); 277 } 278 mHandler.post(mAddTextWatcher); 279 } 280 281 @Override 282 public void onFocusChanged(boolean hasFocus, int direction, Rect previous) { 283 if (!hasFocus) { 284 shrink(); 285 } else { 286 expand(); 287 scrollLineIntoView(getLineCount()); 288 } 289 super.onFocusChanged(hasFocus, direction, previous); 290 } 291 292 private void shrink() { 293 if (mSelectedChip != null) { 294 clearSelectedChip(); 295 } else { 296 // Reset any pending chips as they would have been handled 297 // when the field lost focus. 298 if (mPendingChipsCount > 0) { 299 postHandlePendingChips(); 300 } else { 301 Editable editable = getText(); 302 int end = getSelectionEnd(); 303 int start = mTokenizer.findTokenStart(editable, end); 304 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 305 if ((chips == null || chips.length == 0)) { 306 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 307 // In the middle of chip; treat this as an edit 308 // and commit the whole token. 309 if (whatEnd != getSelectionEnd()) { 310 handleEdit(start, whatEnd); 311 } else { 312 commitChip(start, end, editable); 313 } 314 } 315 } 316 mHandler.post(mAddTextWatcher); 317 } 318 createMoreChip(); 319 } 320 321 private void expand() { 322 removeMoreChip(); 323 setCursorVisible(true); 324 Editable text = getText(); 325 setSelection(text != null && text.length() > 0 ? text.length() : 0); 326 // If there are any temporary chips, try replacing them now that the user 327 // has expanded the field. 328 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0) { 329 new RecipientReplacementTask().execute(); 330 mTemporaryRecipients = null; 331 } 332 } 333 334 private CharSequence ellipsizeText(CharSequence text, TextPaint paint, float maxWidth) { 335 paint.setTextSize(mChipFontSize); 336 if (maxWidth <= 0 && Log.isLoggable(TAG, Log.DEBUG)) { 337 Log.d(TAG, "Max width is negative: " + maxWidth); 338 } 339 return TextUtils.ellipsize(text, paint, maxWidth, 340 TextUtils.TruncateAt.END); 341 } 342 343 private Bitmap createSelectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 344 // Ellipsize the text so that it takes AT MOST the entire width of the 345 // autocomplete text entry area. Make sure to leave space for padding 346 // on the sides. 347 int height = (int) mChipHeight; 348 int deleteWidth = height; 349 CharSequence ellipsizedText = ellipsizeText(contact.getDisplayName(), paint, 350 calculateAvailableWidth(true) - deleteWidth); 351 352 // Make sure there is a minimum chip width so the user can ALWAYS 353 // tap a chip without difficulty. 354 int width = Math.max(deleteWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 355 ellipsizedText.length())) 356 + (mChipPadding * 2) + deleteWidth); 357 358 // Create the background of the chip. 359 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 360 Canvas canvas = new Canvas(tmpBitmap); 361 if (mChipBackgroundPressed != null) { 362 mChipBackgroundPressed.setBounds(0, 0, width, height); 363 mChipBackgroundPressed.draw(canvas); 364 paint.setColor(sSelectedTextColor); 365 // Align the display text with where the user enters text. 366 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, height 367 - Math.abs(height - mChipFontSize)/2, paint); 368 // Make the delete a square. 369 mChipDelete.setBounds(width - deleteWidth, 0, width, height); 370 mChipDelete.draw(canvas); 371 } else { 372 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 373 } 374 return tmpBitmap; 375 } 376 377 378 /** 379 * Get the background drawable for a RecipientChip. 380 */ 381 public Drawable getChipBackground(RecipientEntry contact) { 382 return (mValidator != null && mValidator.isValid(contact.getDestination())) ? 383 mChipBackground : mInvalidChipBackground; 384 } 385 386 private Bitmap createUnselectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 387 // Ellipsize the text so that it takes AT MOST the entire width of the 388 // autocomplete text entry area. Make sure to leave space for padding 389 // on the sides. 390 int height = (int) mChipHeight; 391 int iconWidth = height; 392 String displayText = 393 !TextUtils.isEmpty(contact.getDisplayName()) ? contact.getDisplayName() : 394 !TextUtils.isEmpty(contact.getDestination()) ? contact.getDestination() : ""; 395 CharSequence ellipsizedText = ellipsizeText(displayText, paint, 396 calculateAvailableWidth(false) - iconWidth); 397 // Make sure there is a minimum chip width so the user can ALWAYS 398 // tap a chip without difficulty. 399 int width = Math.max(iconWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 400 ellipsizedText.length())) 401 + (mChipPadding * 2) + iconWidth); 402 403 // Create the background of the chip. 404 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 405 Canvas canvas = new Canvas(tmpBitmap); 406 Drawable background = getChipBackground(contact); 407 if (background != null) { 408 background.setBounds(0, 0, width, height); 409 background.draw(canvas); 410 411 // Don't draw photos for recipients that have been typed in. 412 if (contact.getContactId() != RecipientEntry.INVALID_CONTACT) { 413 byte[] photoBytes = contact.getPhotoBytes(); 414 // There may not be a photo yet if anything but the first contact address 415 // was selected. 416 if (photoBytes == null && contact.getPhotoThumbnailUri() != null) { 417 // TODO: cache this in the recipient entry? 418 ((BaseRecipientAdapter) getAdapter()).fetchPhoto(contact, contact 419 .getPhotoThumbnailUri()); 420 photoBytes = contact.getPhotoBytes(); 421 } 422 423 Bitmap photo; 424 if (photoBytes != null) { 425 photo = BitmapFactory.decodeByteArray(photoBytes, 0, photoBytes.length); 426 } else { 427 // TODO: can the scaled down default photo be cached? 428 photo = mDefaultContactPhoto; 429 } 430 // Draw the photo on the left side. 431 Matrix matrix = new Matrix(); 432 RectF src = new RectF(0, 0, photo.getWidth(), photo.getHeight()); 433 RectF dst = new RectF(width - iconWidth, 0, width, height); 434 matrix.setRectToRect(src, dst, Matrix.ScaleToFit.CENTER); 435 canvas.drawBitmap(photo, matrix, paint); 436 } else { 437 // Don't leave any space for the icon. It isn't being drawn. 438 iconWidth = 0; 439 } 440 441 // Align the display text with where the user enters text. 442 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 443 height - Math.abs(height - mChipFontSize) / 2, paint); 444 } else { 445 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 446 } 447 return tmpBitmap; 448 } 449 450 public RecipientChip constructChipSpan(RecipientEntry contact, int offset, boolean pressed) 451 throws NullPointerException { 452 if (mChipBackground == null) { 453 throw new NullPointerException( 454 "Unable to render any chips as setChipDimensions was not called."); 455 } 456 Layout layout = getLayout(); 457 458 TextPaint paint = getPaint(); 459 float defaultSize = paint.getTextSize(); 460 int defaultColor = paint.getColor(); 461 462 Bitmap tmpBitmap; 463 if (pressed) { 464 tmpBitmap = createSelectedChip(contact, paint, layout); 465 466 } else { 467 tmpBitmap = createUnselectedChip(contact, paint, layout); 468 } 469 470 // Pass the full text, un-ellipsized, to the chip. 471 Drawable result = new BitmapDrawable(getResources(), tmpBitmap); 472 result.setBounds(0, 0, tmpBitmap.getWidth(), tmpBitmap.getHeight()); 473 RecipientChip recipientChip = new RecipientChip(result, contact, offset); 474 // Return text to the original size. 475 paint.setTextSize(defaultSize); 476 paint.setColor(defaultColor); 477 return recipientChip; 478 } 479 480 /** 481 * Calculate the bottom of the line the chip will be located on using: 482 * 1) which line the chip appears on 483 * 2) the height of a chip 484 * 3) padding built into the edit text view 485 */ 486 private int calculateOffsetFromBottom(int line) { 487 // Line offsets start at zero. 488 int actualLine = getLineCount() - (line + 1); 489 return -((actualLine * ((int)mChipHeight) + getPaddingBottom()) + getPaddingTop()); 490 } 491 492 /** 493 * Get the max amount of space a chip can take up. The formula takes into 494 * account the width of the EditTextView, any view padding, and padding 495 * that will be added to the chip. 496 */ 497 private float calculateAvailableWidth(boolean pressed) { 498 return getWidth() - getPaddingLeft() - getPaddingRight() - (mChipPadding * 2); 499 } 500 501 /** 502 * Set all chip dimensions and resources. This has to be done from the 503 * application as this is a static library. 504 * @param chipBackground 505 * @param chipBackgroundPressed 506 * @param invalidChip 507 * @param chipDelete 508 * @param defaultContact 509 * @param moreResource 510 * @param alternatesLayout 511 * @param chipHeight 512 * @param padding Padding around the text in a chip 513 * @param chipFontSize 514 * @param copyViewRes 515 */ 516 public void setChipDimensions(Drawable chipBackground, Drawable chipBackgroundPressed, 517 Drawable invalidChip, Drawable chipDelete, Bitmap defaultContact, int moreResource, 518 int alternatesLayout, float chipHeight, float padding, 519 float chipFontSize, int copyViewRes) { 520 mChipBackground = chipBackground; 521 mChipBackgroundPressed = chipBackgroundPressed; 522 mChipDelete = chipDelete; 523 mChipPadding = (int) padding; 524 mAlternatesLayout = alternatesLayout; 525 mDefaultContactPhoto = defaultContact; 526 mMoreItem = (TextView) LayoutInflater.from(getContext()).inflate(moreResource, null); 527 mChipHeight = chipHeight; 528 mChipFontSize = chipFontSize; 529 mInvalidChipBackground = invalidChip; 530 mCopyViewRes = copyViewRes; 531 } 532 533 /** 534 * Set whether to shrink the recipients field such that at most 535 * one line of recipients chips are shown when the field loses 536 * focus. By default, the number of displayed recipients will be 537 * limited and a "more" chip will be shown when focus is lost. 538 * @param shrink 539 */ 540 public void setOnFocusListShrinkRecipients(boolean shrink) { 541 mShouldShrink = shrink; 542 } 543 544 @Override 545 public void onSizeChanged(int width, int height, int oldw, int oldh) { 546 super.onSizeChanged(width, height, oldw, oldh); 547 if (width != 0 && height != 0 && mPendingChipsCount > 0) { 548 postHandlePendingChips(); 549 } 550 // Try to find the scroll view parent, if it exists. 551 if (mScrollView == null && !mTried) { 552 ViewParent parent = getParent(); 553 while (parent != null && !(parent instanceof ScrollView)) { 554 parent = parent.getParent(); 555 } 556 if (parent != null) { 557 mScrollView = (ScrollView) parent; 558 } 559 mTried = true; 560 } 561 } 562 563 private void postHandlePendingChips() { 564 mHandler.removeCallbacks(mHandlePendingChips); 565 mHandler.post(mHandlePendingChips); 566 } 567 568 private void handlePendingChips() { 569 if (mPendingChipsCount <= 0) { 570 return; 571 } 572 if (getWidth() <= 0) { 573 // The widget has not been sized yet. 574 // This will be called as a result of onSizeChanged 575 // at a later point. 576 return; 577 } 578 synchronized (mPendingChips) { 579 mTemporaryRecipients = new ArrayList<RecipientChip>(mPendingChipsCount); 580 Editable editable = getText(); 581 // Tokenize! 582 for (int i = 0; i < mPendingChips.size(); i++) { 583 String current = mPendingChips.get(i); 584 int tokenStart = editable.toString().indexOf(current); 585 int tokenEnd = tokenStart + current.length(); 586 if (tokenStart >= 0) { 587 // When we have a valid token, include it with the token 588 // to the left. 589 if (tokenEnd < editable.length() - 2 590 && editable.charAt(tokenEnd) == COMMIT_CHAR_COMMA) { 591 tokenEnd++; 592 } 593 createReplacementChip(tokenStart, tokenEnd, editable); 594 } 595 mPendingChipsCount--; 596 } 597 sanitizeSpannable(); 598 if (mTemporaryRecipients != null 599 && mTemporaryRecipients.size() <= RecipientAlternatesAdapter.MAX_LOOKUPS) { 600 if (hasFocus() || mTemporaryRecipients.size() < CHIP_LIMIT) { 601 new RecipientReplacementTask().execute(); 602 mTemporaryRecipients = null; 603 } else { 604 // Create the "more" chip 605 mIndividualReplacements = new IndividualReplacementTask(); 606 mIndividualReplacements.execute(new ArrayList<RecipientChip>( 607 mTemporaryRecipients.subList(0, CHIP_LIMIT))); 608 609 createMoreChip(); 610 } 611 } else { 612 // There are too many recipients to look up, so just fall back 613 // to 614 // showing addresses for all of them. 615 mTemporaryRecipients = null; 616 createMoreChip(); 617 } 618 mPendingChipsCount = 0; 619 mPendingChips.clear(); 620 } 621 } 622 623 /** 624 * Remove any characters after the last valid chip. 625 */ 626 private void sanitizeSpannable() { 627 // Find the last chip; eliminate any commit characters after it. 628 RecipientChip[] chips = getRecipients(); 629 if (chips != null && chips.length > 0) { 630 int end; 631 ImageSpan lastSpan; 632 if (mMoreChip != null) { 633 lastSpan = mMoreChip; 634 } else { 635 lastSpan = chips[chips.length - 1]; 636 } 637 end = getSpannable().getSpanEnd(lastSpan); 638 Editable editable = getText(); 639 int length = editable.length(); 640 if (length > end) { 641 // See what characters occur after that and eliminate them. 642 if (Log.isLoggable(TAG, Log.DEBUG)) { 643 Log.d(TAG, "There were extra characters after the last tokenizable entry." 644 + editable); 645 } 646 editable.delete(end + 1, length); 647 } 648 } 649 } 650 651 /** 652 * Create a chip that represents just the email address of a recipient. At some later 653 * point, this chip will be attached to a real contact entry, if one exists. 654 */ 655 private void createReplacementChip(int tokenStart, int tokenEnd, Editable editable) { 656 if (alreadyHasChip(tokenStart, tokenEnd)) { 657 // There is already a chip present at this location. 658 // Don't recreate it. 659 return; 660 } 661 String token = editable.toString().substring(tokenStart, tokenEnd); 662 int commitCharIndex = token.trim().lastIndexOf(COMMIT_CHAR_COMMA); 663 if (commitCharIndex == token.length() - 1) { 664 token = token.substring(0, token.length() - 1); 665 } 666 RecipientEntry entry = createTokenizedEntry(token); 667 if (entry != null) { 668 String destText = entry.getDestination(); 669 destText = (String) mTokenizer.terminateToken(destText); 670 // Always leave a blank space at the end of a chip. 671 int textLength = destText.length() - 1; 672 SpannableString chipText = new SpannableString(destText); 673 int end = getSelectionEnd(); 674 int start = mTokenizer.findTokenStart(getText(), end); 675 RecipientChip chip = null; 676 try { 677 chip = constructChipSpan(entry, start, false); 678 chipText.setSpan(chip, 0, textLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 679 } catch (NullPointerException e) { 680 Log.e(TAG, e.getMessage(), e); 681 } 682 683 editable.replace(tokenStart, tokenEnd, chipText); 684 // Add this chip to the list of entries "to replace" 685 if (chip != null) { 686 mTemporaryRecipients.add(chip); 687 } 688 } 689 } 690 691 private RecipientEntry createTokenizedEntry(String token) { 692 if (TextUtils.isEmpty(token)) { 693 return null; 694 } 695 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(token); 696 String display = null; 697 if (isValid(token) && tokens != null && tokens.length > 0) { 698 // If we can get a name from tokenizing, then generate an entry from 699 // this. 700 display = tokens[0].getName(); 701 if (!TextUtils.isEmpty(display)) { 702 return RecipientEntry.constructGeneratedEntry(display, token); 703 } else { 704 display = tokens[0].getAddress(); 705 if (!TextUtils.isEmpty(display)) { 706 return RecipientEntry.constructFakeEntry(display); 707 } 708 } 709 } 710 // Unable to validate the token or to create a valid token from it. 711 // Just create a chip the user can edit. 712 if (mValidator != null && !mValidator.isValid(token)) { 713 // Try fixing up the entry using the validator. 714 token = mValidator.fixText(token).toString(); 715 if (!TextUtils.isEmpty(token)) { 716 // protect against the case of a validator with a null domain, 717 // which doesn't add a domain to the token 718 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(token); 719 if (tokenized.length > 0) { 720 token = tokenized[0].getAddress(); 721 } 722 } 723 } 724 // Otherwise, fallback to just creating an editable email address chip. 725 return RecipientEntry.constructFakeEntry(token); 726 } 727 728 private boolean isValid(String text) { 729 return mValidator == null ? true : mValidator.isValid(text); 730 } 731 732 private String tokenizeAddress(String destination) { 733 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(destination); 734 if (tokens != null && tokens.length > 0) { 735 return tokens[0].getAddress(); 736 } 737 return destination; 738 } 739 740 @Override 741 public void setTokenizer(Tokenizer tokenizer) { 742 mTokenizer = tokenizer; 743 super.setTokenizer(mTokenizer); 744 } 745 746 @Override 747 public void setValidator(Validator validator) { 748 mValidator = validator; 749 super.setValidator(validator); 750 } 751 752 /** 753 * We cannot use the default mechanism for replaceText. Instead, 754 * we override onItemClickListener so we can get all the associated 755 * contact information including display text, address, and id. 756 */ 757 @Override 758 protected void replaceText(CharSequence text) { 759 return; 760 } 761 762 /** 763 * Dismiss any selected chips when the back key is pressed. 764 */ 765 @Override 766 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 767 if (keyCode == KeyEvent.KEYCODE_BACK) { 768 clearSelectedChip(); 769 } 770 return super.onKeyPreIme(keyCode, event); 771 } 772 773 /** 774 * Monitor key presses in this view to see if the user types 775 * any commit keys, which consist of ENTER, TAB, or DPAD_CENTER. 776 * If the user has entered text that has contact matches and types 777 * a commit key, create a chip from the topmost matching contact. 778 * If the user has entered text that has no contact matches and types 779 * a commit key, then create a chip from the text they have entered. 780 */ 781 @Override 782 public boolean onKeyUp(int keyCode, KeyEvent event) { 783 switch (keyCode) { 784 case KeyEvent.KEYCODE_ENTER: 785 case KeyEvent.KEYCODE_DPAD_CENTER: 786 if (event.hasNoModifiers()) { 787 if (commitDefault()) { 788 return true; 789 } 790 if (mSelectedChip != null) { 791 clearSelectedChip(); 792 return true; 793 } else if (focusNext()) { 794 return true; 795 } 796 } 797 break; 798 case KeyEvent.KEYCODE_TAB: 799 if (event.hasNoModifiers()) { 800 if (mSelectedChip != null) { 801 clearSelectedChip(); 802 } else { 803 commitDefault(); 804 } 805 if (focusNext()) { 806 return true; 807 } 808 } 809 } 810 return super.onKeyUp(keyCode, event); 811 } 812 813 private boolean focusNext() { 814 View next = focusSearch(View.FOCUS_DOWN); 815 if (next != null) { 816 next.requestFocus(); 817 return true; 818 } 819 return false; 820 } 821 822 /** 823 * Create a chip from the default selection. If the popup is showing, the 824 * default is the first item in the popup suggestions list. Otherwise, it is 825 * whatever the user had typed in. End represents where the the tokenizer 826 * should search for a token to turn into a chip. 827 * @return If a chip was created from a real contact. 828 */ 829 private boolean commitDefault() { 830 Editable editable = getText(); 831 int end = getSelectionEnd(); 832 int start = mTokenizer.findTokenStart(editable, end); 833 834 if (shouldCreateChip(start, end)) { 835 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 836 // In the middle of chip; treat this as an edit 837 // and commit the whole token. 838 if (whatEnd != getSelectionEnd()) { 839 handleEdit(start, whatEnd); 840 return true; 841 } 842 return commitChip(start, end , editable); 843 } 844 return false; 845 } 846 847 private void commitByCharacter() { 848 Editable editable = getText(); 849 int end = getSelectionEnd(); 850 int start = mTokenizer.findTokenStart(editable, end); 851 if (shouldCreateChip(start, end)) { 852 commitChip(start, end, editable); 853 } 854 setSelection(getText().length()); 855 } 856 857 private boolean commitChip(int start, int end, Editable editable) { 858 if (getAdapter().getCount() > 0 && enoughToFilter()) { 859 // choose the first entry. 860 submitItemAtPosition(0); 861 dismissDropDown(); 862 return true; 863 } else { 864 int tokenEnd = mTokenizer.findTokenEnd(editable, start); 865 String text = editable.toString().substring(start, tokenEnd).trim(); 866 clearComposingText(); 867 if (text != null && text.length() > 0 && !text.equals(" ")) { 868 RecipientEntry entry = createTokenizedEntry(text); 869 if (entry != null) { 870 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 871 CharSequence chipText = createChip(entry, false); 872 editable.replace(start, end, chipText); 873 } 874 dismissDropDown(); 875 return true; 876 } 877 } 878 return false; 879 } 880 881 private boolean shouldCreateChip(int start, int end) { 882 return hasFocus() && enoughToFilter() && !alreadyHasChip(start, end); 883 } 884 885 private boolean alreadyHasChip(int start, int end) { 886 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 887 if ((chips == null || chips.length == 0)) { 888 return false; 889 } 890 return true; 891 } 892 893 private void handleEdit(int start, int end) { 894 // This is in the middle of a chip, so select out the whole chip 895 // and commit it. 896 Editable editable = getText(); 897 setSelection(end); 898 String text = getText().toString().substring(start, end); 899 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 900 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 901 CharSequence chipText = createChip(entry, false); 902 editable.replace(start, getSelectionEnd(), chipText); 903 dismissDropDown(); 904 } 905 906 /** 907 * If there is a selected chip, delegate the key events 908 * to the selected chip. 909 */ 910 @Override 911 public boolean onKeyDown(int keyCode, KeyEvent event) { 912 if (mSelectedChip != null && keyCode == KeyEvent.KEYCODE_DEL) { 913 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 914 mAlternatesPopup.dismiss(); 915 } 916 removeChip(mSelectedChip); 917 } 918 919 if (keyCode == KeyEvent.KEYCODE_ENTER && event.hasNoModifiers()) { 920 return true; 921 } 922 923 return super.onKeyDown(keyCode, event); 924 } 925 926 private Spannable getSpannable() { 927 return getText(); 928 } 929 930 private int getChipStart(RecipientChip chip) { 931 return getSpannable().getSpanStart(chip); 932 } 933 934 private int getChipEnd(RecipientChip chip) { 935 return getSpannable().getSpanEnd(chip); 936 } 937 938 /** 939 * Instead of filtering on the entire contents of the edit box, 940 * this subclass method filters on the range from 941 * {@link Tokenizer#findTokenStart} to {@link #getSelectionEnd} 942 * if the length of that range meets or exceeds {@link #getThreshold} 943 * and makes sure that the range is not already a Chip. 944 */ 945 @Override 946 protected void performFiltering(CharSequence text, int keyCode) { 947 if (enoughToFilter()) { 948 int end = getSelectionEnd(); 949 int start = mTokenizer.findTokenStart(text, end); 950 // If this is a RecipientChip, don't filter 951 // on its contents. 952 Spannable span = getSpannable(); 953 RecipientChip[] chips = span.getSpans(start, end, RecipientChip.class); 954 if (chips != null && chips.length > 0) { 955 return; 956 } 957 } 958 super.performFiltering(text, keyCode); 959 } 960 961 private void clearSelectedChip() { 962 if (mSelectedChip != null) { 963 unselectChip(mSelectedChip); 964 mSelectedChip = null; 965 } 966 setCursorVisible(true); 967 } 968 969 /** 970 * Monitor touch events in the RecipientEditTextView. 971 * If the view does not have focus, any tap on the view 972 * will just focus the view. If the view has focus, determine 973 * if the touch target is a recipient chip. If it is and the chip 974 * is not selected, select it and clear any other selected chips. 975 * If it isn't, then select that chip. 976 */ 977 @Override 978 public boolean onTouchEvent(MotionEvent event) { 979 if (!isFocused()) { 980 // Ignore any chip taps until this view is focused. 981 return super.onTouchEvent(event); 982 } 983 984 boolean handled = super.onTouchEvent(event); 985 int action = event.getAction(); 986 boolean chipWasSelected = false; 987 if (action == MotionEvent.ACTION_DOWN && mSelectedChip == null) { 988 mGestureDetector.onTouchEvent(event); 989 } 990 if (mCopyDialog == null && action == MotionEvent.ACTION_UP) { 991 float x = event.getX(); 992 float y = event.getY(); 993 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 994 RecipientChip currentChip = findChip(offset); 995 if (currentChip != null) { 996 if (action == MotionEvent.ACTION_UP) { 997 if (mSelectedChip != null && mSelectedChip != currentChip) { 998 clearSelectedChip(); 999 mSelectedChip = selectChip(currentChip); 1000 } else if (mSelectedChip == null) { 1001 // Selection may have moved due to the tap event, 1002 // but make sure we correctly reset selection to the 1003 // end so that any unfinished chips are committed. 1004 setSelection(getText().length()); 1005 commitDefault(); 1006 mSelectedChip = selectChip(currentChip); 1007 } else { 1008 onClick(mSelectedChip, offset, x, y); 1009 } 1010 } 1011 chipWasSelected = true; 1012 handled = true; 1013 } 1014 } 1015 if (action == MotionEvent.ACTION_UP && !chipWasSelected) { 1016 clearSelectedChip(); 1017 } 1018 return handled; 1019 } 1020 1021 private void scrollLineIntoView(int line) { 1022 if (mScrollView != null) { 1023 mScrollView.scrollBy(0, calculateOffsetFromBottom(line)); 1024 } 1025 } 1026 1027 private void showAlternates(RecipientChip currentChip, ListPopupWindow alternatesPopup, 1028 int width, Context context) { 1029 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1030 int bottom = calculateOffsetFromBottom(line); 1031 // Align the alternates popup with the left side of the View, 1032 // regardless of the position of the chip tapped. 1033 alternatesPopup.setWidth(width); 1034 alternatesPopup.setAnchorView(this); 1035 alternatesPopup.setVerticalOffset(bottom); 1036 alternatesPopup.setAdapter(createAlternatesAdapter(currentChip)); 1037 alternatesPopup.setOnItemClickListener(mAlternatesListener); 1038 alternatesPopup.show(); 1039 ListView listView = alternatesPopup.getListView(); 1040 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1041 // Checked item would be -1 if the adapter has not 1042 // loaded the view that should be checked yet. The 1043 // variable will be set correctly when onCheckedItemChanged 1044 // is called in a separate thread. 1045 if (mCheckedItem != -1) { 1046 listView.setItemChecked(mCheckedItem, true); 1047 mCheckedItem = -1; 1048 } 1049 } 1050 1051 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 1052 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 1053 mAlternatesLayout, this); 1054 } 1055 1056 private ListAdapter createSingleAddressAdapter(RecipientChip currentChip) { 1057 return new SingleRecipientArrayAdapter(getContext(), mAlternatesLayout, currentChip 1058 .getEntry()); 1059 } 1060 1061 @Override 1062 public void onCheckedItemChanged(int position) { 1063 ListView listView = mAlternatesPopup.getListView(); 1064 if (listView != null && listView.getCheckedItemCount() == 0) { 1065 listView.setItemChecked(position, true); 1066 } else { 1067 mCheckedItem = position; 1068 } 1069 } 1070 1071 // TODO: This algorithm will need a lot of tweaking after more people have used 1072 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 1073 // what comes before the finger. 1074 private int putOffsetInRange(int o) { 1075 int offset = o; 1076 Editable text = getText(); 1077 int length = text.length(); 1078 // Remove whitespace from end to find "real end" 1079 int realLength = length; 1080 for (int i = length - 1; i >= 0; i--) { 1081 if (text.charAt(i) == ' ') { 1082 realLength--; 1083 } else { 1084 break; 1085 } 1086 } 1087 1088 // If the offset is beyond or at the end of the text, 1089 // leave it alone. 1090 if (offset >= realLength) { 1091 return offset; 1092 } 1093 Editable editable = getText(); 1094 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 1095 // Keep walking backward! 1096 offset--; 1097 } 1098 return offset; 1099 } 1100 1101 private int findText(Editable text, int offset) { 1102 if (text.charAt(offset) != ' ') { 1103 return offset; 1104 } 1105 return -1; 1106 } 1107 1108 private RecipientChip findChip(int offset) { 1109 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1110 // Find the chip that contains this offset. 1111 for (int i = 0; i < chips.length; i++) { 1112 RecipientChip chip = chips[i]; 1113 int start = getChipStart(chip); 1114 int end = getChipEnd(chip); 1115 if (offset >= start && offset <= end) { 1116 return chip; 1117 } 1118 } 1119 return null; 1120 } 1121 1122 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 1123 String displayText = entry.getDestination(); 1124 displayText = (String) mTokenizer.terminateToken(displayText); 1125 // Always leave a blank space at the end of a chip. 1126 int textLength = displayText.length()-1; 1127 SpannableString chipText = new SpannableString(displayText); 1128 int end = getSelectionEnd(); 1129 int start = mTokenizer.findTokenStart(getText(), end); 1130 try { 1131 chipText.setSpan(constructChipSpan(entry, start, pressed), 0, textLength, 1132 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1133 } catch (NullPointerException e) { 1134 Log.e(TAG, e.getMessage(), e); 1135 return null; 1136 } 1137 1138 return chipText; 1139 } 1140 1141 /** 1142 * When an item in the suggestions list has been clicked, create a chip from the 1143 * contact information of the selected item. 1144 */ 1145 @Override 1146 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1147 submitItemAtPosition(position); 1148 } 1149 1150 private void submitItemAtPosition(int position) { 1151 RecipientEntry entry = createValidatedEntry( 1152 (RecipientEntry)getAdapter().getItem(position)); 1153 if (entry == null) { 1154 return; 1155 } 1156 clearComposingText(); 1157 1158 int end = getSelectionEnd(); 1159 int start = mTokenizer.findTokenStart(getText(), end); 1160 1161 Editable editable = getText(); 1162 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1163 CharSequence chip = createChip(entry, false); 1164 if (chip != null) { 1165 editable.replace(start, end, chip); 1166 } 1167 } 1168 1169 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1170 if (item == null) { 1171 return null; 1172 } 1173 final RecipientEntry entry; 1174 // If the display name and the address are the same, or if this is a 1175 // valid contact, but the destination is invalid, then make this a fake 1176 // recipient that is editable. 1177 String destination = item.getDestination(); 1178 if (TextUtils.isEmpty(item.getDisplayName()) 1179 || TextUtils.equals(item.getDisplayName(), destination) 1180 || (mValidator != null && !mValidator.isValid(destination))) { 1181 entry = RecipientEntry.constructFakeEntry(destination); 1182 } else { 1183 entry = item; 1184 } 1185 return entry; 1186 } 1187 1188 /** Returns a collection of contact Id for each chip inside this View. */ 1189 /* package */ Collection<Long> getContactIds() { 1190 final Set<Long> result = new HashSet<Long>(); 1191 RecipientChip[] chips = getRecipients(); 1192 if (chips != null) { 1193 for (RecipientChip chip : chips) { 1194 result.add(chip.getContactId()); 1195 } 1196 } 1197 return result; 1198 } 1199 1200 private RecipientChip[] getRecipients() { 1201 return getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1202 } 1203 1204 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1205 /* package */ Collection<Long> getDataIds() { 1206 final Set<Long> result = new HashSet<Long>(); 1207 RecipientChip [] chips = getRecipients(); 1208 if (chips != null) { 1209 for (RecipientChip chip : chips) { 1210 result.add(chip.getDataId()); 1211 } 1212 } 1213 return result; 1214 } 1215 1216 1217 @Override 1218 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1219 return false; 1220 } 1221 1222 @Override 1223 public void onDestroyActionMode(ActionMode mode) { 1224 } 1225 1226 @Override 1227 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1228 return false; 1229 } 1230 1231 /** 1232 * No chips are selectable. 1233 */ 1234 @Override 1235 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1236 return false; 1237 } 1238 1239 /** 1240 * Create the more chip. The more chip is text that replaces any chips that 1241 * do not fit in the pre-defined available space when the 1242 * RecipientEditTextView loses focus. 1243 */ 1244 private void createMoreChip() { 1245 if (!mShouldShrink) { 1246 return; 1247 } 1248 1249 RecipientChip[] recipients = getRecipients(); 1250 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1251 mMoreChip = null; 1252 return; 1253 } 1254 int numRecipients = recipients.length; 1255 int overage = numRecipients - CHIP_LIMIT; 1256 Editable text = getText(); 1257 String moreText = String.format(mMoreItem.getText().toString(), overage); 1258 TextPaint morePaint = new TextPaint(getPaint()); 1259 morePaint.setTextSize(mMoreItem.getTextSize()); 1260 morePaint.setColor(mMoreItem.getCurrentTextColor()); 1261 int width = (int)morePaint.measureText(moreText) + mMoreItem.getPaddingLeft() 1262 + mMoreItem.getPaddingRight(); 1263 int height = getLineHeight(); 1264 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1265 Canvas canvas = new Canvas(drawable); 1266 canvas.drawText(moreText, 0, moreText.length(), 0, height - getLayout().getLineDescent(0), 1267 morePaint); 1268 1269 Drawable result = new BitmapDrawable(getResources(), drawable); 1270 result.setBounds(0, 0, width, height); 1271 ImageSpan moreSpan = new ImageSpan(result); 1272 Spannable spannable = getSpannable(); 1273 // Remove the overage chips. 1274 if (recipients == null || recipients.length == 0) { 1275 Log.w(TAG, 1276 "We have recipients. Tt should not be possible to have zero RecipientChips."); 1277 mMoreChip = null; 1278 return; 1279 } 1280 mRemovedSpans = new ArrayList<RecipientChip>(); 1281 int totalReplaceStart = 0; 1282 int totalReplaceEnd = 0; 1283 for (int i = numRecipients - overage; i < recipients.length; i++) { 1284 mRemovedSpans.add(recipients[i]); 1285 if (i == numRecipients - overage) { 1286 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1287 } 1288 if (i == recipients.length - 1) { 1289 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1290 } 1291 if (mTemporaryRecipients != null && !mTemporaryRecipients.contains(recipients[i])) { 1292 recipients[i].storeChipStart(spannable.getSpanStart(recipients[i])); 1293 recipients[i].storeChipEnd(spannable.getSpanEnd(recipients[i])); 1294 } 1295 spannable.removeSpan(recipients[i]); 1296 } 1297 // TODO: why would these ever be backwards? 1298 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1299 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1300 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1301 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1302 text.replace(start, end, chipText); 1303 mMoreChip = moreSpan; 1304 } 1305 1306 /** 1307 * Replace the more chip, if it exists, with all of the recipient chips it had 1308 * replaced when the RecipientEditTextView gains focus. 1309 */ 1310 private void removeMoreChip() { 1311 if (mMoreChip != null) { 1312 Spannable span = getSpannable(); 1313 span.removeSpan(mMoreChip); 1314 mMoreChip = null; 1315 // Re-add the spans that were removed. 1316 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1317 // Recreate each removed span. 1318 Editable editable = getText(); 1319 for (RecipientChip chip : mRemovedSpans) { 1320 int chipStart = chip.getStoredChipStart(); 1321 int chipEnd; 1322 String token; 1323 if (chipStart == -1) { 1324 // Need to find the location of the chip, again. 1325 token = (String)mTokenizer.terminateToken(chip.getEntry().getDestination()); 1326 chipStart = editable.toString().indexOf(token); 1327 // -1 for the space! 1328 chipEnd = chipStart + token.length() - 1; 1329 } else { 1330 chipEnd = Math.min(editable.length(), chip.getStoredChipEnd()); 1331 } 1332 if (Log.isLoggable(TAG, Log.DEBUG) && chipEnd != chip.getStoredChipEnd()) { 1333 Log.d(TAG, 1334 "Unexpectedly, the chip ended after the end of the editable text. " 1335 + "Chip End " + chip.getStoredChipEnd() 1336 + "Editable length " + editable.length()); 1337 } 1338 // Only set the span if we found a matching token. 1339 if (chipStart != -1) { 1340 editable.setSpan(chip, chipStart, chipEnd, 1341 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1342 } 1343 } 1344 mRemovedSpans.clear(); 1345 } 1346 } 1347 } 1348 1349 /** 1350 * Show specified chip as selected. If the RecipientChip is just an email address, 1351 * selecting the chip will take the contents of the chip and place it at 1352 * the end of the RecipientEditTextView for inline editing. If the 1353 * RecipientChip is a complete contact, then selecting the chip 1354 * will change the background color of the chip, show the delete icon, 1355 * and a popup window with the address in use highlighted and any other 1356 * alternate addresses for the contact. 1357 * @param currentChip Chip to select. 1358 * @return A RecipientChip in the selected state or null if the chip 1359 * just contained an email address. 1360 */ 1361 public RecipientChip selectChip(RecipientChip currentChip) { 1362 if (currentChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1363 CharSequence text = currentChip.getValue(); 1364 Editable editable = getText(); 1365 removeChip(currentChip); 1366 editable.append(text); 1367 setCursorVisible(true); 1368 setSelection(editable.length()); 1369 return null; 1370 } else if (currentChip.getContactId() == RecipientEntry.GENERATED_CONTACT) { 1371 int start = getChipStart(currentChip); 1372 int end = getChipEnd(currentChip); 1373 getSpannable().removeSpan(currentChip); 1374 RecipientChip newChip; 1375 try { 1376 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1377 } catch (NullPointerException e) { 1378 Log.e(TAG, e.getMessage(), e); 1379 return null; 1380 } 1381 Editable editable = getText(); 1382 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1383 if (start == -1 || end == -1) { 1384 Log.d(TAG, "The chip being selected no longer exists but should."); 1385 } else { 1386 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1387 } 1388 newChip.setSelected(true); 1389 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1390 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1391 } 1392 showAddress(newChip, mAddressPopup, getWidth(), getContext()); 1393 setCursorVisible(false); 1394 return newChip; 1395 } else { 1396 int start = getChipStart(currentChip); 1397 int end = getChipEnd(currentChip); 1398 getSpannable().removeSpan(currentChip); 1399 RecipientChip newChip; 1400 try { 1401 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1402 } catch (NullPointerException e) { 1403 Log.e(TAG, e.getMessage(), e); 1404 return null; 1405 } 1406 Editable editable = getText(); 1407 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1408 if (start == -1 || end == -1) { 1409 Log.d(TAG, "The chip being selected no longer exists but should."); 1410 } else { 1411 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1412 } 1413 newChip.setSelected(true); 1414 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1415 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1416 } 1417 showAlternates(newChip, mAlternatesPopup, getWidth(), getContext()); 1418 setCursorVisible(false); 1419 return newChip; 1420 } 1421 } 1422 1423 1424 private void showAddress(final RecipientChip currentChip, final ListPopupWindow popup, 1425 int width, Context context) { 1426 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1427 int bottom = calculateOffsetFromBottom(line); 1428 // Align the alternates popup with the left side of the View, 1429 // regardless of the position of the chip tapped. 1430 popup.setWidth(width); 1431 popup.setAnchorView(this); 1432 popup.setVerticalOffset(bottom); 1433 popup.setAdapter(createSingleAddressAdapter(currentChip)); 1434 popup.setOnItemClickListener(new OnItemClickListener() { 1435 @Override 1436 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1437 unselectChip(currentChip); 1438 popup.dismiss(); 1439 } 1440 }); 1441 popup.show(); 1442 ListView listView = popup.getListView(); 1443 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1444 listView.setItemChecked(0, true); 1445 } 1446 1447 /** 1448 * Remove selection from this chip. Unselecting a RecipientChip will render 1449 * the chip without a delete icon and with an unfocused background. This 1450 * is called when the RecipientChip no longer has focus. 1451 */ 1452 public void unselectChip(RecipientChip chip) { 1453 int start = getChipStart(chip); 1454 int end = getChipEnd(chip); 1455 Editable editable = getText(); 1456 mSelectedChip = null; 1457 if (start == -1 || end == -1) { 1458 Log.e(TAG, "The chip being unselected no longer exists but should."); 1459 } else { 1460 getSpannable().removeSpan(chip); 1461 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1462 editable.removeSpan(chip); 1463 try { 1464 editable.setSpan(constructChipSpan(chip.getEntry(), start, false), start, end, 1465 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1466 } catch (NullPointerException e) { 1467 Log.e(TAG, e.getMessage(), e); 1468 } 1469 } 1470 setCursorVisible(true); 1471 setSelection(editable.length()); 1472 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1473 mAlternatesPopup.dismiss(); 1474 } 1475 } 1476 1477 1478 /** 1479 * Return whether this chip contains the position passed in. 1480 */ 1481 public boolean matchesChip(RecipientChip chip, int offset) { 1482 int start = getChipStart(chip); 1483 int end = getChipEnd(chip); 1484 if (start == -1 || end == -1) { 1485 return false; 1486 } 1487 return (offset >= start && offset <= end); 1488 } 1489 1490 1491 /** 1492 * Return whether a touch event was inside the delete target of 1493 * a selected chip. It is in the delete target if: 1494 * 1) the x and y points of the event are within the 1495 * delete assset. 1496 * 2) the point tapped would have caused a cursor to appear 1497 * right after the selected chip. 1498 * @return boolean 1499 */ 1500 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1501 // Figure out the bounds of this chip and whether or not 1502 // the user clicked in the X portion. 1503 return chip.isSelected() && offset == getChipEnd(chip); 1504 } 1505 1506 /** 1507 * Remove the chip and any text associated with it from the RecipientEditTextView. 1508 */ 1509 private void removeChip(RecipientChip chip) { 1510 Spannable spannable = getSpannable(); 1511 int spanStart = spannable.getSpanStart(chip); 1512 int spanEnd = spannable.getSpanEnd(chip); 1513 Editable text = getText(); 1514 int toDelete = spanEnd; 1515 boolean wasSelected = chip == mSelectedChip; 1516 // Clear that there is a selected chip before updating any text. 1517 if (wasSelected) { 1518 mSelectedChip = null; 1519 } 1520 // Always remove trailing spaces when removing a chip. 1521 while (toDelete >= 0 && toDelete < text.length() && text.charAt(toDelete) == ' ') { 1522 toDelete++; 1523 } 1524 spannable.removeSpan(chip); 1525 text.delete(spanStart, toDelete); 1526 if (wasSelected) { 1527 clearSelectedChip(); 1528 } 1529 } 1530 1531 /** 1532 * Replace this currently selected chip with a new chip 1533 * that uses the contact data provided. 1534 */ 1535 public void replaceChip(RecipientChip chip, RecipientEntry entry) { 1536 boolean wasSelected = chip == mSelectedChip; 1537 if (wasSelected) { 1538 mSelectedChip = null; 1539 } 1540 int start = getChipStart(chip); 1541 int end = getChipEnd(chip); 1542 getSpannable().removeSpan(chip); 1543 Editable editable = getText(); 1544 CharSequence chipText = createChip(entry, false); 1545 if (start == -1 || end == -1) { 1546 Log.e(TAG, "The chip to replace does not exist but should."); 1547 editable.insert(0, chipText); 1548 } else { 1549 // There may be a space to replace with this chip's new associated 1550 // space. Check for it. 1551 int toReplace = end; 1552 while (toReplace >= 0 && toReplace < editable.length() 1553 && editable.charAt(toReplace) == ' ') { 1554 toReplace++; 1555 } 1556 editable.replace(start, toReplace, chipText); 1557 } 1558 setCursorVisible(true); 1559 if (wasSelected) { 1560 clearSelectedChip(); 1561 } 1562 } 1563 1564 /** 1565 * Handle click events for a chip. When a selected chip receives a click 1566 * event, see if that event was in the delete icon. If so, delete it. 1567 * Otherwise, unselect the chip. 1568 */ 1569 public void onClick(RecipientChip chip, int offset, float x, float y) { 1570 if (chip.isSelected()) { 1571 if (isInDelete(chip, offset, x, y)) { 1572 removeChip(chip); 1573 } else { 1574 clearSelectedChip(); 1575 } 1576 } 1577 } 1578 1579 private boolean chipsPending() { 1580 return mPendingChipsCount > 0 || (mRemovedSpans != null && mRemovedSpans.size() > 0); 1581 } 1582 1583 @Override 1584 public void removeTextChangedListener(TextWatcher watcher) { 1585 mTextWatcher = null; 1586 super.removeTextChangedListener(watcher); 1587 } 1588 1589 private class RecipientTextWatcher implements TextWatcher { 1590 @Override 1591 public void afterTextChanged(Editable s) { 1592 // If the text has been set to null or empty, make sure we remove 1593 // all the spans we applied. 1594 if (TextUtils.isEmpty(s)) { 1595 // Remove all the chips spans. 1596 Spannable spannable = getSpannable(); 1597 RecipientChip[] chips = spannable.getSpans(0, getText().length(), 1598 RecipientChip.class); 1599 for (RecipientChip chip : chips) { 1600 spannable.removeSpan(chip); 1601 } 1602 if (mMoreChip != null) { 1603 spannable.removeSpan(mMoreChip); 1604 } 1605 return; 1606 } 1607 // Get whether there are any recipients pending addition to the 1608 // view. If there are, don't do anything in the text watcher. 1609 if (chipsPending()) { 1610 return; 1611 } 1612 if (mSelectedChip != null) { 1613 setCursorVisible(true); 1614 setSelection(getText().length()); 1615 clearSelectedChip(); 1616 } 1617 int length = s.length(); 1618 // Make sure there is content there to parse and that it is 1619 // not just the commit character. 1620 if (length > 1) { 1621 char last; 1622 int end = getSelectionEnd() == 0 ? 0 : getSelectionEnd() - 1; 1623 int len = length() - 1; 1624 if (end != len) { 1625 last = s.charAt(end); 1626 } else { 1627 last = s.charAt(len); 1628 } 1629 if (last == COMMIT_CHAR_SEMICOLON || last == COMMIT_CHAR_COMMA) { 1630 commitByCharacter(); 1631 } else if (last == COMMIT_CHAR_SPACE) { 1632 // Check if this is a valid email address. If it is, 1633 // commit it. 1634 String text = getText().toString(); 1635 int tokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 1636 String sub = text.substring(tokenStart, mTokenizer.findTokenEnd(text, 1637 tokenStart)); 1638 if (mValidator != null && mValidator.isValid(sub)) { 1639 commitByCharacter(); 1640 } 1641 } 1642 } 1643 } 1644 1645 @Override 1646 public void onTextChanged(CharSequence s, int start, int before, int count) { 1647 // Do nothing. 1648 } 1649 1650 @Override 1651 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 1652 } 1653 } 1654 1655 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 1656 private RecipientChip createFreeChip(RecipientEntry entry) { 1657 String displayText = entry.getDestination(); 1658 displayText = (String) mTokenizer.terminateToken(displayText); 1659 try { 1660 return constructChipSpan(entry, -1, false); 1661 } catch (NullPointerException e) { 1662 Log.e(TAG, e.getMessage(), e); 1663 return null; 1664 } 1665 } 1666 1667 @Override 1668 protected Void doInBackground(Void... params) { 1669 if (mIndividualReplacements != null) { 1670 mIndividualReplacements.cancel(true); 1671 } 1672 // For each chip in the list, look up the matching contact. 1673 // If there is a match, replace that chip with the matching 1674 // chip. 1675 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 1676 RecipientChip[] existingChips = getSpannable().getSpans(0, getText().length(), 1677 RecipientChip.class); 1678 for (int i = 0; i < existingChips.length; i++) { 1679 originalRecipients.add(existingChips[i]); 1680 } 1681 if (mRemovedSpans != null) { 1682 originalRecipients.addAll(mRemovedSpans); 1683 } 1684 String[] addresses = new String[originalRecipients.size()]; 1685 for (int i = 0; i < originalRecipients.size(); i++) { 1686 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1687 } 1688 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1689 .getMatchingRecipients(getContext(), addresses); 1690 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 1691 for (final RecipientChip temp : originalRecipients) { 1692 RecipientEntry entry = null; 1693 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1694 && getSpannable().getSpanStart(temp) != -1) { 1695 // Replace this. 1696 entry = createValidatedEntry(entries.get(tokenizeAddress(temp.getEntry() 1697 .getDestination()))); 1698 } 1699 if (entry != null) { 1700 replacements.add(createFreeChip(entry)); 1701 } else { 1702 replacements.add(temp); 1703 } 1704 } 1705 if (replacements != null && replacements.size() > 0) { 1706 mHandler.post(new Runnable() { 1707 @Override 1708 public void run() { 1709 SpannableStringBuilder text = new SpannableStringBuilder(getText() 1710 .toString()); 1711 Editable oldText = getText(); 1712 int start, end; 1713 int i = 0; 1714 for (RecipientChip chip : originalRecipients) { 1715 start = oldText.getSpanStart(chip); 1716 if (start != -1) { 1717 end = oldText.getSpanEnd(chip); 1718 text.removeSpan(chip); 1719 // Leave a spot for the space! 1720 text.setSpan(replacements.get(i), start, end, 1721 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1722 } 1723 i++; 1724 } 1725 Editable editable = getText(); 1726 editable.clear(); 1727 editable.insert(0, text); 1728 originalRecipients.clear(); 1729 } 1730 }); 1731 } 1732 return null; 1733 } 1734 } 1735 1736 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 1737 @SuppressWarnings("unchecked") 1738 @Override 1739 protected Void doInBackground(Object... params) { 1740 // For each chip in the list, look up the matching contact. 1741 // If there is a match, replace that chip with the matching 1742 // chip. 1743 final ArrayList<RecipientChip> originalRecipients = 1744 (ArrayList<RecipientChip>) params[0]; 1745 String[] addresses = new String[originalRecipients.size()]; 1746 for (int i = 0; i < originalRecipients.size(); i++) { 1747 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1748 } 1749 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1750 .getMatchingRecipients(getContext(), addresses); 1751 for (final RecipientChip temp : originalRecipients) { 1752 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1753 && getSpannable().getSpanStart(temp) != -1) { 1754 // Replace this. 1755 final RecipientEntry entry = createValidatedEntry(entries 1756 .get(tokenizeAddress(temp.getEntry().getDestination()))); 1757 if (entry != null) { 1758 mHandler.post(new Runnable() { 1759 @Override 1760 public void run() { 1761 replaceChip(temp, entry); 1762 } 1763 }); 1764 } 1765 } 1766 } 1767 return null; 1768 } 1769 } 1770 1771 @Override 1772 public boolean onDown(MotionEvent e) { 1773 return false; 1774 } 1775 1776 @Override 1777 public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { 1778 // Do nothing. 1779 return false; 1780 } 1781 1782 @Override 1783 public void onLongPress(MotionEvent event) { 1784 if (mSelectedChip != null) { 1785 return; 1786 } 1787 float x = event.getX(); 1788 float y = event.getY(); 1789 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 1790 RecipientChip currentChip = findChip(offset); 1791 if (currentChip != null) { 1792 // Copy the selected chip email address. 1793 showCopyDialog(currentChip.getEntry().getDestination()); 1794 } 1795 } 1796 1797 private void showCopyDialog(final String address) { 1798 mCopyAddress = address; 1799 mCopyDialog = new Dialog(getContext()); 1800 mCopyDialog.setTitle(address); 1801 mCopyDialog.setContentView(mCopyViewRes); 1802 mCopyDialog.setCancelable(true); 1803 mCopyDialog.setCanceledOnTouchOutside(true); 1804 mCopyDialog.findViewById(android.R.id.button1).setOnClickListener(this); 1805 mCopyDialog.setOnDismissListener(this); 1806 mCopyDialog.show(); 1807 } 1808 1809 @Override 1810 public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) { 1811 // Do nothing. 1812 return false; 1813 } 1814 1815 @Override 1816 public void onShowPress(MotionEvent e) { 1817 // Do nothing. 1818 } 1819 1820 @Override 1821 public boolean onSingleTapUp(MotionEvent e) { 1822 // Do nothing. 1823 return false; 1824 } 1825 1826 @Override 1827 public void onDismiss(DialogInterface dialog) { 1828 mCopyAddress = null; 1829 mCopyDialog = null; 1830 } 1831 1832 @Override 1833 public void onClick(View v) { 1834 // Copy this to the clipboard. 1835 ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService( 1836 Context.CLIPBOARD_SERVICE); 1837 clipboard.setPrimaryClip(ClipData.newPlainText("", mCopyAddress)); 1838 mCopyDialog.dismiss(); 1839 } 1840} 1841