RecipientEditTextView.java revision e90bfad1a7cc118e721b723aba48e71b952e5c6e
1/* 2 * Copyright (C) 2011 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 17package com.android.ex.chips; 18 19import android.content.Context; 20import android.graphics.Bitmap; 21import android.graphics.BitmapFactory; 22import android.graphics.Canvas; 23import android.graphics.Matrix; 24import android.graphics.Rect; 25import android.graphics.RectF; 26import android.graphics.drawable.BitmapDrawable; 27import android.graphics.drawable.Drawable; 28import android.os.AsyncTask; 29import android.os.Handler; 30import android.os.Message; 31import android.text.Editable; 32import android.text.Layout; 33import android.text.Spannable; 34import android.text.SpannableString; 35import android.text.SpannableStringBuilder; 36import android.text.Spanned; 37import android.text.TextPaint; 38import android.text.TextUtils; 39import android.text.TextWatcher; 40import android.text.method.QwertyKeyListener; 41import android.text.style.ImageSpan; 42import android.text.util.Rfc822Token; 43import android.text.util.Rfc822Tokenizer; 44import android.util.AttributeSet; 45import android.util.Log; 46import android.view.ActionMode; 47import android.view.KeyEvent; 48import android.view.LayoutInflater; 49import android.view.Menu; 50import android.view.MenuItem; 51import android.view.MotionEvent; 52import android.view.View; 53import android.view.ViewParent; 54import android.view.ActionMode.Callback; 55import android.widget.AdapterView; 56import android.widget.AdapterView.OnItemClickListener; 57import android.widget.Filterable; 58import android.widget.ListAdapter; 59import android.widget.ListPopupWindow; 60import android.widget.ListView; 61import android.widget.MultiAutoCompleteTextView; 62import android.widget.ScrollView; 63import android.widget.TextView; 64 65import java.util.Collection; 66import java.util.HashMap; 67import java.util.HashSet; 68import java.util.Set; 69 70import java.util.ArrayList; 71 72/** 73 * RecipientEditTextView is an auto complete text view for use with applications 74 * that use the new Chips UI for addressing a message to recipients. 75 */ 76public class RecipientEditTextView extends MultiAutoCompleteTextView implements 77 OnItemClickListener, Callback, RecipientAlternatesAdapter.OnCheckedItemChangedListener { 78 79 private static final String TAG = "RecipientEditTextView"; 80 81 // TODO: get correct number/ algorithm from with UX. 82 private static final int CHIP_LIMIT = 2; 83 84 private Drawable mChipBackground = null; 85 86 private Drawable mChipDelete = null; 87 88 private int mChipPadding; 89 90 private Tokenizer mTokenizer; 91 92 private Drawable mChipBackgroundPressed; 93 94 private RecipientChip mSelectedChip; 95 96 private int mAlternatesLayout; 97 98 private Bitmap mDefaultContactPhoto; 99 100 private ImageSpan mMoreChip; 101 102 private TextView mMoreItem; 103 104 105 private final ArrayList<String> mPendingChips = new ArrayList<String>(); 106 107 private float mChipHeight; 108 109 private float mChipFontSize; 110 111 private Validator mValidator; 112 113 private Drawable mInvalidChipBackground; 114 115 private Handler mHandler; 116 117 private static int DISMISS = "dismiss".hashCode(); 118 119 private static final long DISMISS_DELAY = 300; 120 121 private int mPendingChipsCount = 0; 122 123 private static int sSelectedTextColor = -1; 124 125 private static final char COMMIT_CHAR_COMMA = ','; 126 127 private static final char COMMIT_CHAR_SEMICOLON = ';'; 128 129 private static final char COMMIT_CHAR_SPACE = ' '; 130 131 private ListPopupWindow mAlternatesPopup; 132 133 private ListPopupWindow mAddressPopup; 134 135 private ArrayList<RecipientChip> mTemporaryRecipients; 136 137 private ArrayList<RecipientChip> mRemovedSpans; 138 139 /** 140 * Used with {@link mAlternatesPopup}. Handles clicks to alternate addresses for a selected chip. 141 */ 142 private OnItemClickListener mAlternatesListener; 143 144 private int mCheckedItem; 145 private TextWatcher mTextWatcher; 146 147 private ScrollView mScrollView; 148 149 private boolean mTried; 150 151 private final Runnable mAddTextWatcher = new Runnable() { 152 @Override 153 public void run() { 154 if (mTextWatcher == null) { 155 mTextWatcher = new RecipientTextWatcher(); 156 addTextChangedListener(mTextWatcher); 157 } 158 } 159 }; 160 161 private IndividualReplacementTask mIndividualReplacements; 162 163 private Runnable mHandlePendingChips = new Runnable() { 164 165 @Override 166 public void run() { 167 handlePendingChips(); 168 } 169 170 }; 171 172 public RecipientEditTextView(Context context, AttributeSet attrs) { 173 super(context, attrs); 174 if (sSelectedTextColor == -1) { 175 sSelectedTextColor = context.getResources().getColor(android.R.color.white); 176 } 177 mAlternatesPopup = new ListPopupWindow(context); 178 mAddressPopup = new ListPopupWindow(context); 179 mAlternatesListener = new OnItemClickListener() { 180 @Override 181 public void onItemClick(AdapterView<?> adapterView,View view, int position, 182 long rowId) { 183 mAlternatesPopup.setOnItemClickListener(null); 184 replaceChip(mSelectedChip, ((RecipientAlternatesAdapter) adapterView.getAdapter()) 185 .getRecipientEntry(position)); 186 Message delayed = Message.obtain(mHandler, DISMISS); 187 delayed.obj = mAlternatesPopup; 188 mHandler.sendMessageDelayed(delayed, DISMISS_DELAY); 189 clearComposingText(); 190 } 191 }; 192 setSuggestionsEnabled(false); 193 setOnItemClickListener(this); 194 setCustomSelectionActionModeCallback(this); 195 mHandler = new Handler() { 196 @Override 197 public void handleMessage(Message msg) { 198 if (msg.what == DISMISS) { 199 ((ListPopupWindow) msg.obj).dismiss(); 200 return; 201 } 202 super.handleMessage(msg); 203 } 204 }; 205 mTextWatcher = new RecipientTextWatcher(); 206 addTextChangedListener(mTextWatcher); 207 } 208 209 @Override 210 public <T extends ListAdapter & Filterable> void setAdapter(T adapter) { 211 super.setAdapter(adapter); 212 if (adapter == null) { 213 return; 214 } 215 } 216 217 @Override 218 public void onSelectionChanged(int start, int end) { 219 // When selection changes, see if it is inside the chips area. 220 // If so, move the cursor back after the chips again. 221 Spannable span = getSpannable(); 222 int textLength = getText().length(); 223 RecipientChip[] chips = span.getSpans(start, textLength, RecipientChip.class); 224 if (chips != null && chips.length > 0) { 225 if (chips != null && chips.length > 0) { 226 // Grab the last chip and set the cursor to after it. 227 setSelection(Math.min(span.getSpanEnd(chips[chips.length - 1]) + 1, textLength)); 228 } 229 } 230 super.onSelectionChanged(start, end); 231 } 232 233 /** 234 * Convenience method: Append the specified text slice to the TextView's 235 * display buffer, upgrading it to BufferType.EDITABLE if it was 236 * not already editable. Commas are excluded as they are added automatically 237 * by the view. 238 */ 239 @Override 240 public void append(CharSequence text, int start, int end) { 241 // We don't care about watching text changes while appending. 242 if (mTextWatcher != null) { 243 removeTextChangedListener(mTextWatcher); 244 } 245 super.append(text, start, end); 246 if (!TextUtils.isEmpty(text) && TextUtils.getTrimmedLength(text) > 0) { 247 final String displayString = (String) text; 248 int seperatorPos = displayString.indexOf(COMMIT_CHAR_COMMA); 249 if (seperatorPos != 0 && !TextUtils.isEmpty(displayString) 250 && TextUtils.getTrimmedLength(displayString) > 0) { 251 mPendingChipsCount++; 252 mPendingChips.add((String)text); 253 } 254 } 255 // Put a message on the queue to make sure we ALWAYS handle pending chips. 256 if (mPendingChipsCount > 0) { 257 postHandlePendingChips(); 258 } 259 mHandler.post(mAddTextWatcher); 260 } 261 262 @Override 263 public void onFocusChanged(boolean hasFocus, int direction, Rect previous) { 264 if (!hasFocus) { 265 shrink(); 266 } else { 267 expand(); 268 scrollLineIntoView(getLineCount()); 269 } 270 super.onFocusChanged(hasFocus, direction, previous); 271 } 272 273 private void shrink() { 274 if (mSelectedChip != null) { 275 clearSelectedChip(); 276 } else { 277 // Reset any pending chips as they would have been handled 278 // when the field lost focus. 279 if (mPendingChipsCount > 0) { 280 postHandlePendingChips(); 281 } else { 282 Editable editable = getText(); 283 int end = getSelectionEnd(); 284 int start = mTokenizer.findTokenStart(editable, end); 285 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 286 if ((chips == null || chips.length == 0)) { 287 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 288 // In the middle of chip; treat this as an edit 289 // and commit the whole token. 290 if (whatEnd != getSelectionEnd()) { 291 handleEdit(start, whatEnd); 292 } else { 293 commitChip(start, end, editable); 294 } 295 } 296 } 297 mHandler.post(mAddTextWatcher); 298 } 299 createMoreChip(); 300 } 301 302 private void expand() { 303 removeMoreChip(); 304 setCursorVisible(true); 305 Editable text = getText(); 306 setSelection(text != null && text.length() > 0 ? text.length() : 0); 307 // If there are any temporary chips, try replacing them now that the user 308 // has expanded the field. 309 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0) { 310 new RecipientReplacementTask().execute(); 311 mTemporaryRecipients = null; 312 } 313 } 314 315 private CharSequence ellipsizeText(CharSequence text, TextPaint paint, float maxWidth) { 316 paint.setTextSize(mChipFontSize); 317 if (maxWidth <= 0 && Log.isLoggable(TAG, Log.DEBUG)) { 318 Log.d(TAG, "Max width is negative: " + maxWidth); 319 } 320 return TextUtils.ellipsize(text, paint, maxWidth, 321 TextUtils.TruncateAt.END); 322 } 323 324 private Bitmap createSelectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 325 // Ellipsize the text so that it takes AT MOST the entire width of the 326 // autocomplete text entry area. Make sure to leave space for padding 327 // on the sides. 328 int height = (int) mChipHeight; 329 int deleteWidth = height; 330 CharSequence ellipsizedText = ellipsizeText(contact.getDisplayName(), paint, 331 calculateAvailableWidth(true) - deleteWidth); 332 333 // Make sure there is a minimum chip width so the user can ALWAYS 334 // tap a chip without difficulty. 335 int width = Math.max(deleteWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 336 ellipsizedText.length())) 337 + (mChipPadding * 2) + deleteWidth); 338 339 // Create the background of the chip. 340 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 341 Canvas canvas = new Canvas(tmpBitmap); 342 if (mChipBackgroundPressed != null) { 343 mChipBackgroundPressed.setBounds(0, 0, width, height); 344 mChipBackgroundPressed.draw(canvas); 345 paint.setColor(sSelectedTextColor); 346 // Align the display text with where the user enters text. 347 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, height 348 - Math.abs(height - mChipFontSize)/2, paint); 349 // Make the delete a square. 350 mChipDelete.setBounds(width - deleteWidth, 0, width, height); 351 mChipDelete.draw(canvas); 352 } else { 353 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 354 } 355 return tmpBitmap; 356 } 357 358 359 /** 360 * Get the background drawable for a RecipientChip. 361 */ 362 public Drawable getChipBackground(RecipientEntry contact) { 363 return (mValidator != null && mValidator.isValid(contact.getDestination())) ? 364 mChipBackground : mInvalidChipBackground; 365 } 366 367 private Bitmap createUnselectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 368 // Ellipsize the text so that it takes AT MOST the entire width of the 369 // autocomplete text entry area. Make sure to leave space for padding 370 // on the sides. 371 int height = (int) mChipHeight; 372 int iconWidth = height; 373 String displayText = 374 !TextUtils.isEmpty(contact.getDisplayName()) ? contact.getDisplayName() : 375 !TextUtils.isEmpty(contact.getDestination()) ? contact.getDestination() : ""; 376 CharSequence ellipsizedText = ellipsizeText(displayText, paint, 377 calculateAvailableWidth(false) - iconWidth); 378 // Make sure there is a minimum chip width so the user can ALWAYS 379 // tap a chip without difficulty. 380 int width = Math.max(iconWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 381 ellipsizedText.length())) 382 + (mChipPadding * 2) + iconWidth); 383 384 // Create the background of the chip. 385 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 386 Canvas canvas = new Canvas(tmpBitmap); 387 Drawable background = getChipBackground(contact); 388 if (background != null) { 389 background.setBounds(0, 0, width, height); 390 background.draw(canvas); 391 392 // Don't draw photos for recipients that have been typed in. 393 if (contact.getContactId() != RecipientEntry.INVALID_CONTACT) { 394 byte[] photoBytes = contact.getPhotoBytes(); 395 // There may not be a photo yet if anything but the first contact address 396 // was selected. 397 if (photoBytes == null && contact.getPhotoThumbnailUri() != null) { 398 // TODO: cache this in the recipient entry? 399 ((BaseRecipientAdapter) getAdapter()).fetchPhoto(contact, contact 400 .getPhotoThumbnailUri()); 401 photoBytes = contact.getPhotoBytes(); 402 } 403 404 Bitmap photo; 405 if (photoBytes != null) { 406 photo = BitmapFactory.decodeByteArray(photoBytes, 0, photoBytes.length); 407 } else { 408 // TODO: can the scaled down default photo be cached? 409 photo = mDefaultContactPhoto; 410 } 411 // Draw the photo on the left side. 412 Matrix matrix = new Matrix(); 413 RectF src = new RectF(0, 0, photo.getWidth(), photo.getHeight()); 414 RectF dst = new RectF(width - iconWidth, 0, width, height); 415 matrix.setRectToRect(src, dst, Matrix.ScaleToFit.CENTER); 416 canvas.drawBitmap(photo, matrix, paint); 417 } else { 418 // Don't leave any space for the icon. It isn't being drawn. 419 iconWidth = 0; 420 } 421 422 // Align the display text with where the user enters text. 423 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 424 height - Math.abs(height - mChipFontSize) / 2, paint); 425 } else { 426 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 427 } 428 return tmpBitmap; 429 } 430 431 public RecipientChip constructChipSpan(RecipientEntry contact, int offset, boolean pressed) 432 throws NullPointerException { 433 if (mChipBackground == null) { 434 throw new NullPointerException( 435 "Unable to render any chips as setChipDimensions was not called."); 436 } 437 Layout layout = getLayout(); 438 439 TextPaint paint = getPaint(); 440 float defaultSize = paint.getTextSize(); 441 int defaultColor = paint.getColor(); 442 443 Bitmap tmpBitmap; 444 if (pressed) { 445 tmpBitmap = createSelectedChip(contact, paint, layout); 446 447 } else { 448 tmpBitmap = createUnselectedChip(contact, paint, layout); 449 } 450 451 // Pass the full text, un-ellipsized, to the chip. 452 Drawable result = new BitmapDrawable(getResources(), tmpBitmap); 453 result.setBounds(0, 0, tmpBitmap.getWidth(), tmpBitmap.getHeight()); 454 RecipientChip recipientChip = new RecipientChip(result, contact, offset); 455 // Return text to the original size. 456 paint.setTextSize(defaultSize); 457 paint.setColor(defaultColor); 458 return recipientChip; 459 } 460 461 /** 462 * Calculate the bottom of the line the chip will be located on using: 463 * 1) which line the chip appears on 464 * 2) the height of a chip 465 * 3) padding built into the edit text view 466 */ 467 private int calculateOffsetFromBottom(int line) { 468 // Line offsets start at zero. 469 int actualLine = getLineCount() - (line + 1); 470 return -((actualLine * ((int)mChipHeight) + getPaddingBottom()) + getPaddingTop()); 471 } 472 473 /** 474 * Get the max amount of space a chip can take up. The formula takes into 475 * account the width of the EditTextView, any view padding, and padding 476 * that will be added to the chip. 477 */ 478 private float calculateAvailableWidth(boolean pressed) { 479 return getWidth() - getPaddingLeft() - getPaddingRight() - (mChipPadding * 2); 480 } 481 482 /** 483 * Set all chip dimensions and resources. This has to be done from the 484 * application as this is a static library. 485 * @param chipBackground 486 * @param chipBackgroundPressed 487 * @param invalidChip 488 * @param chipDelete 489 * @param defaultContact 490 * @param moreResource 491 * @param alternatesLayout 492 * @param chipHeight 493 * @param padding Padding around the text in a chip 494 */ 495 public void setChipDimensions(Drawable chipBackground, Drawable chipBackgroundPressed, 496 Drawable invalidChip, Drawable chipDelete, Bitmap defaultContact, int moreResource, 497 int alternatesLayout, float chipHeight, float padding, 498 float chipFontSize) { 499 mChipBackground = chipBackground; 500 mChipBackgroundPressed = chipBackgroundPressed; 501 mChipDelete = chipDelete; 502 mChipPadding = (int) padding; 503 mAlternatesLayout = alternatesLayout; 504 mDefaultContactPhoto = defaultContact; 505 mMoreItem = (TextView) LayoutInflater.from(getContext()).inflate(moreResource, null); 506 mChipHeight = chipHeight; 507 mChipFontSize = chipFontSize; 508 mInvalidChipBackground = invalidChip; 509 } 510 511 @Override 512 public void onSizeChanged(int width, int height, int oldw, int oldh) { 513 super.onSizeChanged(width, height, oldw, oldh); 514 if (width != 0 && height != 0 && mPendingChipsCount > 0) { 515 postHandlePendingChips(); 516 } 517 // Try to find the scroll view parent, if it exists. 518 if (mScrollView == null && !mTried) { 519 ViewParent parent = getParent(); 520 while (parent != null && !(parent instanceof ScrollView)) { 521 parent = parent.getParent(); 522 } 523 if (parent != null) { 524 mScrollView = (ScrollView) parent; 525 } 526 mTried = true; 527 } 528 } 529 530 private void postHandlePendingChips() { 531 mHandler.removeCallbacks(mHandlePendingChips); 532 mHandler.post(mHandlePendingChips); 533 } 534 535 private void handlePendingChips() { 536 if (mPendingChipsCount <= 0) { 537 return; 538 } 539 if (getWidth() <= 0) { 540 // The widget has not been sized yet. 541 // This will be called as a result of onSizeChanged 542 // at a later point. 543 return; 544 } 545 synchronized (mPendingChips) { 546 mTemporaryRecipients = new ArrayList<RecipientChip>(mPendingChipsCount); 547 Editable editable = getText(); 548 // Tokenize! 549 for (int i = 0; i < mPendingChips.size(); i++) { 550 String current = mPendingChips.get(i); 551 int tokenStart = editable.toString().indexOf(current); 552 int tokenEnd = tokenStart + current.length(); 553 if (tokenStart >= 0) { 554 // When we have a valid token, include it with the token 555 // to the left. 556 if (tokenEnd < editable.length() - 2 557 && editable.charAt(tokenEnd) == COMMIT_CHAR_COMMA) { 558 tokenEnd++; 559 } 560 createReplacementChip(tokenStart, tokenEnd, editable); 561 } 562 mPendingChipsCount--; 563 } 564 sanitizeSpannable(); 565 if (mTemporaryRecipients != null 566 && mTemporaryRecipients.size() <= RecipientAlternatesAdapter.MAX_LOOKUPS) { 567 if (hasFocus() || mTemporaryRecipients.size() < CHIP_LIMIT) { 568 new RecipientReplacementTask().execute(); 569 mTemporaryRecipients = null; 570 } else { 571 // Create the "more" chip 572 mIndividualReplacements = new IndividualReplacementTask(); 573 mIndividualReplacements.execute(new ArrayList<RecipientChip>( 574 mTemporaryRecipients.subList(0, CHIP_LIMIT))); 575 576 createMoreChip(); 577 } 578 } else { 579 // There are too many recipients to look up, so just fall back 580 // to 581 // showing addresses for all of them. 582 mTemporaryRecipients = null; 583 createMoreChip(); 584 } 585 mPendingChipsCount = 0; 586 mPendingChips.clear(); 587 } 588 } 589 590 /** 591 * Remove any characters after the last valid chip. 592 */ 593 private void sanitizeSpannable() { 594 // Find the last chip; eliminate any commit characters after it. 595 RecipientChip[] chips = getRecipients(); 596 if (chips != null && chips.length > 0) { 597 int end; 598 ImageSpan lastSpan; 599 if (mMoreChip != null) { 600 lastSpan = mMoreChip; 601 } else { 602 lastSpan = chips[chips.length - 1]; 603 } 604 end = getSpannable().getSpanEnd(lastSpan); 605 Editable editable = getText(); 606 int length = editable.length(); 607 if (length > end) { 608 // See what characters occur after that and eliminate them. 609 if (Log.isLoggable(TAG, Log.DEBUG)) { 610 Log.d(TAG, "There were extra characters after the last tokenizable entry." 611 + editable); 612 } 613 editable.delete(end + 1, length); 614 } 615 } 616 } 617 618 /** 619 * Create a chip that represents just the email address of a recipient. At some later 620 * point, this chip will be attached to a real contact entry, if one exists. 621 */ 622 private void createReplacementChip(int tokenStart, int tokenEnd, Editable editable) { 623 if (alreadyHasChip(tokenStart, tokenEnd)) { 624 // There is already a chip present at this location. 625 // Don't recreate it. 626 return; 627 } 628 String token = editable.toString().substring(tokenStart, tokenEnd); 629 int commitCharIndex = token.trim().lastIndexOf(COMMIT_CHAR_COMMA); 630 if (commitCharIndex == token.length() - 1) { 631 token = token.substring(0, token.length() - 1); 632 } 633 RecipientEntry entry = createTokenizedEntry(token); 634 String destText = entry.getDestination(); 635 destText = (String) mTokenizer.terminateToken(destText); 636 // Always leave a blank space at the end of a chip. 637 int textLength = destText.length() - 1; 638 SpannableString chipText = new SpannableString(destText); 639 int end = getSelectionEnd(); 640 int start = mTokenizer.findTokenStart(getText(), end); 641 RecipientChip chip = null; 642 try { 643 chip = constructChipSpan(entry, start, false); 644 chipText.setSpan(chip, 0, textLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 645 } catch (NullPointerException e) { 646 Log.e(TAG, e.getMessage(), e); 647 } 648 649 editable.replace(tokenStart, tokenEnd, chipText); 650 // Add this chip to the list of entries "to replace" 651 if (chip != null) { 652 mTemporaryRecipients.add(chip); 653 } 654 } 655 656 private RecipientEntry createTokenizedEntry(String token) { 657 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(token); 658 String display = null; 659 if (isValid(token) && tokens != null && tokens.length > 0) { 660 display = tokens[0].getName(); 661 if (!TextUtils.isEmpty(display)) { 662 return RecipientEntry.constructGeneratedEntry(display, token); 663 } 664 display = tokens[0].getAddress(); 665 if (!TextUtils.isEmpty(display)) { 666 return RecipientEntry.constructGeneratedEntry(display, token); 667 } 668 } 669 // Unable to validate the token or to create a valid token from it. 670 // Just create a chip the user can edit. 671 if (mValidator != null && !mValidator.isValid(token)) { 672 // Try fixing up the entry using the validator. 673 token = mValidator.fixText(token).toString(); 674 token = Rfc822Tokenizer.tokenize(token)[0].getAddress(); 675 } 676 return RecipientEntry.constructFakeEntry(token); 677 } 678 679 private boolean isValid(String text) { 680 return mValidator == null ? true : mValidator.isValid(text); 681 } 682 683 private String tokenizeAddress(String destination) { 684 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(destination); 685 if (tokens != null && tokens.length > 0) { 686 return tokens[0].getAddress(); 687 } 688 return destination; 689 } 690 691 @Override 692 public void setTokenizer(Tokenizer tokenizer) { 693 mTokenizer = tokenizer; 694 super.setTokenizer(mTokenizer); 695 } 696 697 @Override 698 public void setValidator(Validator validator) { 699 mValidator = validator; 700 super.setValidator(validator); 701 } 702 703 /** 704 * We cannot use the default mechanism for replaceText. Instead, 705 * we override onItemClickListener so we can get all the associated 706 * contact information including display text, address, and id. 707 */ 708 @Override 709 protected void replaceText(CharSequence text) { 710 return; 711 } 712 713 /** 714 * Dismiss any selected chips when the back key is pressed. 715 */ 716 @Override 717 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 718 if (keyCode == KeyEvent.KEYCODE_BACK) { 719 clearSelectedChip(); 720 } 721 return super.onKeyPreIme(keyCode, event); 722 } 723 724 /** 725 * Monitor key presses in this view to see if the user types 726 * any commit keys, which consist of ENTER, TAB, or DPAD_CENTER. 727 * If the user has entered text that has contact matches and types 728 * a commit key, create a chip from the topmost matching contact. 729 * If the user has entered text that has no contact matches and types 730 * a commit key, then create a chip from the text they have entered. 731 */ 732 @Override 733 public boolean onKeyUp(int keyCode, KeyEvent event) { 734 switch (keyCode) { 735 case KeyEvent.KEYCODE_ENTER: 736 case KeyEvent.KEYCODE_DPAD_CENTER: 737 if (event.hasNoModifiers()) { 738 if (commitDefault()) { 739 return true; 740 } 741 if (mSelectedChip != null) { 742 clearSelectedChip(); 743 return true; 744 } else if (focusNext()) { 745 return true; 746 } 747 } 748 break; 749 case KeyEvent.KEYCODE_TAB: 750 if (event.hasNoModifiers()) { 751 if (mSelectedChip != null) { 752 clearSelectedChip(); 753 } else { 754 commitDefault(); 755 } 756 if (focusNext()) { 757 return true; 758 } 759 } 760 } 761 return super.onKeyUp(keyCode, event); 762 } 763 764 private boolean focusNext() { 765 View next = focusSearch(View.FOCUS_DOWN); 766 if (next != null) { 767 next.requestFocus(); 768 return true; 769 } 770 return false; 771 } 772 773 /** 774 * Create a chip from the default selection. If the popup is showing, the 775 * default is the first item in the popup suggestions list. Otherwise, it is 776 * whatever the user had typed in. End represents where the the tokenizer 777 * should search for a token to turn into a chip. 778 * @return If a chip was created from a real contact. 779 */ 780 private boolean commitDefault() { 781 Editable editable = getText(); 782 int end = getSelectionEnd(); 783 int start = mTokenizer.findTokenStart(editable, end); 784 785 if (shouldCreateChip(start, end)) { 786 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 787 // In the middle of chip; treat this as an edit 788 // and commit the whole token. 789 if (whatEnd != getSelectionEnd()) { 790 handleEdit(start, whatEnd); 791 return true; 792 } 793 return commitChip(start, end , editable); 794 } 795 return false; 796 } 797 798 private void commitByCharacter() { 799 Editable editable = getText(); 800 int end = getSelectionEnd(); 801 int start = mTokenizer.findTokenStart(editable, end); 802 if (shouldCreateChip(start, end)) { 803 commitChip(start, end, editable); 804 } 805 setSelection(getText().length()); 806 } 807 808 private boolean commitChip(int start, int end, Editable editable) { 809 if (getAdapter().getCount() > 0 && enoughToFilter()) { 810 // choose the first entry. 811 submitItemAtPosition(0); 812 dismissDropDown(); 813 return true; 814 } else { 815 int tokenEnd = mTokenizer.findTokenEnd(editable, start); 816 String text = editable.toString().substring(start, tokenEnd).trim(); 817 clearComposingText(); 818 if (text != null && text.length() > 0 && !text.equals(" ")) { 819 RecipientEntry entry = createTokenizedEntry(text); 820 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 821 CharSequence chipText = createChip(entry, false); 822 editable.replace(start, end, chipText); 823 dismissDropDown(); 824 return true; 825 } 826 } 827 return false; 828 } 829 830 private boolean shouldCreateChip(int start, int end) { 831 return hasFocus() && enoughToFilter() && !alreadyHasChip(start, end); 832 } 833 834 private boolean alreadyHasChip(int start, int end) { 835 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 836 if ((chips == null || chips.length == 0)) { 837 return false; 838 } 839 return true; 840 } 841 842 private void handleEdit(int start, int end) { 843 // This is in the middle of a chip, so select out the whole chip 844 // and commit it. 845 Editable editable = getText(); 846 setSelection(end); 847 String text = getText().toString().substring(start, end); 848 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 849 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 850 CharSequence chipText = createChip(entry, false); 851 editable.replace(start, getSelectionEnd(), chipText); 852 dismissDropDown(); 853 } 854 855 /** 856 * If there is a selected chip, delegate the key events 857 * to the selected chip. 858 */ 859 @Override 860 public boolean onKeyDown(int keyCode, KeyEvent event) { 861 if (mSelectedChip != null && keyCode == KeyEvent.KEYCODE_DEL) { 862 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 863 mAlternatesPopup.dismiss(); 864 } 865 removeChip(mSelectedChip); 866 } 867 868 if (keyCode == KeyEvent.KEYCODE_ENTER && event.hasNoModifiers()) { 869 return true; 870 } 871 872 return super.onKeyDown(keyCode, event); 873 } 874 875 private Spannable getSpannable() { 876 return getText(); 877 } 878 879 private int getChipStart(RecipientChip chip) { 880 return getSpannable().getSpanStart(chip); 881 } 882 883 private int getChipEnd(RecipientChip chip) { 884 return getSpannable().getSpanEnd(chip); 885 } 886 887 /** 888 * Instead of filtering on the entire contents of the edit box, 889 * this subclass method filters on the range from 890 * {@link Tokenizer#findTokenStart} to {@link #getSelectionEnd} 891 * if the length of that range meets or exceeds {@link #getThreshold} 892 * and makes sure that the range is not already a Chip. 893 */ 894 @Override 895 protected void performFiltering(CharSequence text, int keyCode) { 896 if (enoughToFilter()) { 897 int end = getSelectionEnd(); 898 int start = mTokenizer.findTokenStart(text, end); 899 // If this is a RecipientChip, don't filter 900 // on its contents. 901 Spannable span = getSpannable(); 902 RecipientChip[] chips = span.getSpans(start, end, RecipientChip.class); 903 if (chips != null && chips.length > 0) { 904 return; 905 } 906 } 907 super.performFiltering(text, keyCode); 908 } 909 910 private void clearSelectedChip() { 911 if (mSelectedChip != null) { 912 unselectChip(mSelectedChip); 913 mSelectedChip = null; 914 } 915 setCursorVisible(true); 916 } 917 918 /** 919 * Monitor touch events in the RecipientEditTextView. 920 * If the view does not have focus, any tap on the view 921 * will just focus the view. If the view has focus, determine 922 * if the touch target is a recipient chip. If it is and the chip 923 * is not selected, select it and clear any other selected chips. 924 * If it isn't, then select that chip. 925 */ 926 @Override 927 public boolean onTouchEvent(MotionEvent event) { 928 if (!isFocused()) { 929 // Ignore any chip taps until this view is focused. 930 return super.onTouchEvent(event); 931 } 932 933 boolean handled = super.onTouchEvent(event); 934 int action = event.getAction(); 935 boolean chipWasSelected = false; 936 937 if (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_DOWN) { 938 float x = event.getX(); 939 float y = event.getY(); 940 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 941 RecipientChip currentChip = findChip(offset); 942 if (currentChip != null) { 943 if (action == MotionEvent.ACTION_UP) { 944 if (mSelectedChip != null && mSelectedChip != currentChip) { 945 clearSelectedChip(); 946 mSelectedChip = selectChip(currentChip); 947 } else if (mSelectedChip == null) { 948 // Selection may have moved due to the tap event, 949 // but make sure we correctly reset selection to the 950 // end so that any unfinished chips are committed. 951 setSelection(getText().length()); 952 commitDefault(); 953 mSelectedChip = selectChip(currentChip); 954 } else { 955 onClick(mSelectedChip, offset, x, y); 956 } 957 } 958 chipWasSelected = true; 959 handled = true; 960 } 961 } 962 if (action == MotionEvent.ACTION_UP && !chipWasSelected) { 963 clearSelectedChip(); 964 } 965 return handled; 966 } 967 968 private void scrollLineIntoView(int line) { 969 if (mScrollView != null) { 970 mScrollView.scrollBy(0, calculateOffsetFromBottom(line)); 971 } 972 } 973 974 private void showAlternates(RecipientChip currentChip, ListPopupWindow alternatesPopup, 975 int width, Context context) { 976 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 977 int bottom = calculateOffsetFromBottom(line); 978 // Align the alternates popup with the left side of the View, 979 // regardless of the position of the chip tapped. 980 alternatesPopup.setWidth(width); 981 alternatesPopup.setAnchorView(this); 982 alternatesPopup.setVerticalOffset(bottom); 983 alternatesPopup.setAdapter(createAlternatesAdapter(currentChip)); 984 alternatesPopup.setOnItemClickListener(mAlternatesListener); 985 alternatesPopup.show(); 986 ListView listView = alternatesPopup.getListView(); 987 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 988 // Checked item would be -1 if the adapter has not 989 // loaded the view that should be checked yet. The 990 // variable will be set correctly when onCheckedItemChanged 991 // is called in a separate thread. 992 if (mCheckedItem != -1) { 993 listView.setItemChecked(mCheckedItem, true); 994 mCheckedItem = -1; 995 } 996 } 997 998 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 999 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 1000 mAlternatesLayout, this); 1001 } 1002 1003 private ListAdapter createSingleAddressAdapter(RecipientChip currentChip) { 1004 return new SingleRecipientArrayAdapter(getContext(), mAlternatesLayout, currentChip 1005 .getEntry()); 1006 } 1007 1008 public void onCheckedItemChanged(int position) { 1009 ListView listView = mAlternatesPopup.getListView(); 1010 if (listView != null && listView.getCheckedItemCount() == 0) { 1011 listView.setItemChecked(position, true); 1012 } else { 1013 mCheckedItem = position; 1014 } 1015 } 1016 1017 // TODO: This algorithm will need a lot of tweaking after more people have used 1018 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 1019 // what comes before the finger. 1020 private int putOffsetInRange(int o) { 1021 int offset = o; 1022 Editable text = getText(); 1023 int length = text.length(); 1024 // Remove whitespace from end to find "real end" 1025 int realLength = length; 1026 for (int i = length - 1; i >= 0; i--) { 1027 if (text.charAt(i) == ' ') { 1028 realLength--; 1029 } else { 1030 break; 1031 } 1032 } 1033 1034 // If the offset is beyond or at the end of the text, 1035 // leave it alone. 1036 if (offset >= realLength) { 1037 return offset; 1038 } 1039 Editable editable = getText(); 1040 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 1041 // Keep walking backward! 1042 offset--; 1043 } 1044 return offset; 1045 } 1046 1047 private int findText(Editable text, int offset) { 1048 if (text.charAt(offset) != ' ') { 1049 return offset; 1050 } 1051 return -1; 1052 } 1053 1054 private RecipientChip findChip(int offset) { 1055 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1056 // Find the chip that contains this offset. 1057 for (int i = 0; i < chips.length; i++) { 1058 RecipientChip chip = chips[i]; 1059 int start = getChipStart(chip); 1060 int end = getChipEnd(chip); 1061 if (offset >= start && offset <= end) { 1062 return chip; 1063 } 1064 } 1065 return null; 1066 } 1067 1068 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 1069 String displayText = entry.getDestination(); 1070 displayText = (String) mTokenizer.terminateToken(displayText); 1071 // Always leave a blank space at the end of a chip. 1072 int textLength = displayText.length()-1; 1073 SpannableString chipText = new SpannableString(displayText); 1074 int end = getSelectionEnd(); 1075 int start = mTokenizer.findTokenStart(getText(), end); 1076 try { 1077 chipText.setSpan(constructChipSpan(entry, start, pressed), 0, textLength, 1078 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1079 } catch (NullPointerException e) { 1080 Log.e(TAG, e.getMessage(), e); 1081 return null; 1082 } 1083 1084 return chipText; 1085 } 1086 1087 /** 1088 * When an item in the suggestions list has been clicked, create a chip from the 1089 * contact information of the selected item. 1090 */ 1091 @Override 1092 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1093 submitItemAtPosition(position); 1094 } 1095 1096 private void submitItemAtPosition(int position) { 1097 RecipientEntry entry = createValidatedEntry( 1098 (RecipientEntry)getAdapter().getItem(position)); 1099 if (entry == null) { 1100 return; 1101 } 1102 clearComposingText(); 1103 1104 int end = getSelectionEnd(); 1105 int start = mTokenizer.findTokenStart(getText(), end); 1106 1107 Editable editable = getText(); 1108 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1109 CharSequence chip = createChip(entry, false); 1110 if (chip != null) { 1111 editable.replace(start, end, chip); 1112 } 1113 } 1114 1115 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1116 if (item == null) { 1117 return null; 1118 } 1119 final RecipientEntry entry; 1120 // If the display name and the address are the same, or if this is a 1121 // valid contact, but the destination is invalid, then make this a fake 1122 // recipient that is editable. 1123 String destination = item.getDestination(); 1124 if (TextUtils.isEmpty(item.getDisplayName()) 1125 || TextUtils.equals(item.getDisplayName(), destination) 1126 || (mValidator != null && !mValidator.isValid(destination))) { 1127 entry = RecipientEntry.constructFakeEntry(destination); 1128 } else { 1129 entry = item; 1130 } 1131 return entry; 1132 } 1133 1134 /** Returns a collection of contact Id for each chip inside this View. */ 1135 /* package */ Collection<Long> getContactIds() { 1136 final Set<Long> result = new HashSet<Long>(); 1137 RecipientChip[] chips = getRecipients(); 1138 if (chips != null) { 1139 for (RecipientChip chip : chips) { 1140 result.add(chip.getContactId()); 1141 } 1142 } 1143 return result; 1144 } 1145 1146 private RecipientChip[] getRecipients() { 1147 return getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1148 } 1149 1150 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1151 /* package */ Collection<Long> getDataIds() { 1152 final Set<Long> result = new HashSet<Long>(); 1153 RecipientChip [] chips = getRecipients(); 1154 if (chips != null) { 1155 for (RecipientChip chip : chips) { 1156 result.add(chip.getDataId()); 1157 } 1158 } 1159 return result; 1160 } 1161 1162 1163 @Override 1164 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1165 return false; 1166 } 1167 1168 @Override 1169 public void onDestroyActionMode(ActionMode mode) { 1170 } 1171 1172 @Override 1173 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1174 return false; 1175 } 1176 1177 /** 1178 * No chips are selectable. 1179 */ 1180 @Override 1181 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1182 return false; 1183 } 1184 1185 /** 1186 * Create the more chip. The more chip is text that replaces any chips that 1187 * do not fit in the pre-defined available space when the 1188 * RecipientEditTextView loses focus. 1189 */ 1190 private void createMoreChip() { 1191 RecipientChip[] recipients = getRecipients(); 1192 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1193 mMoreChip = null; 1194 return; 1195 } 1196 int numRecipients = recipients.length; 1197 int overage = numRecipients - CHIP_LIMIT; 1198 Editable text = getText(); 1199 String moreText = String.format(mMoreItem.getText().toString(), overage); 1200 TextPaint morePaint = new TextPaint(getPaint()); 1201 morePaint.setTextSize(mMoreItem.getTextSize()); 1202 morePaint.setColor(mMoreItem.getCurrentTextColor()); 1203 int width = (int)morePaint.measureText(moreText) + mMoreItem.getPaddingLeft() 1204 + mMoreItem.getPaddingRight(); 1205 int height = getLineHeight(); 1206 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1207 Canvas canvas = new Canvas(drawable); 1208 canvas.drawText(moreText, 0, moreText.length(), 0, height - getLayout().getLineDescent(0), 1209 morePaint); 1210 1211 Drawable result = new BitmapDrawable(getResources(), drawable); 1212 result.setBounds(0, 0, width, height); 1213 ImageSpan moreSpan = new ImageSpan(result); 1214 Spannable spannable = getSpannable(); 1215 // Remove the overage chips. 1216 if (recipients == null || recipients.length == 0) { 1217 Log.w(TAG, 1218 "We have recipients. Tt should not be possible to have zero RecipientChips."); 1219 mMoreChip = null; 1220 return; 1221 } 1222 mRemovedSpans = new ArrayList<RecipientChip>(); 1223 int totalReplaceStart = 0; 1224 int totalReplaceEnd = 0; 1225 for (int i = numRecipients - overage; i < recipients.length; i++) { 1226 mRemovedSpans.add(recipients[i]); 1227 if (i == numRecipients - overage) { 1228 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1229 } 1230 if (i == recipients.length - 1) { 1231 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1232 } 1233 if (mTemporaryRecipients != null && !mTemporaryRecipients.contains(recipients[i])) { 1234 recipients[i].storeChipStart(spannable.getSpanStart(recipients[i])); 1235 recipients[i].storeChipEnd(spannable.getSpanEnd(recipients[i])); 1236 } 1237 spannable.removeSpan(recipients[i]); 1238 } 1239 // TODO: why would these ever be backwards? 1240 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1241 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1242 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1243 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1244 text.replace(start, end, chipText); 1245 mMoreChip = moreSpan; 1246 } 1247 1248 /** 1249 * Replace the more chip, if it exists, with all of the recipient chips it had 1250 * replaced when the RecipientEditTextView gains focus. 1251 */ 1252 private void removeMoreChip() { 1253 if (mMoreChip != null) { 1254 Spannable span = getSpannable(); 1255 span.removeSpan(mMoreChip); 1256 mMoreChip = null; 1257 // Re-add the spans that were removed. 1258 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1259 // Recreate each removed span. 1260 Editable editable = getText(); 1261 for (RecipientChip chip : mRemovedSpans) { 1262 int chipStart = chip.getStoredChipStart(); 1263 int chipEnd; 1264 String token; 1265 if (chipStart == -1) { 1266 // Need to find the location of the chip, again. 1267 token = (String)mTokenizer.terminateToken(chip.getEntry().getDestination()); 1268 chipStart = editable.toString().indexOf(token); 1269 // -1 for the space! 1270 chipEnd = chipStart + token.length() - 1; 1271 } else { 1272 chipEnd = Math.min(editable.length(), chip.getStoredChipEnd()); 1273 } 1274 if (Log.isLoggable(TAG, Log.DEBUG) && chipEnd != chip.getStoredChipEnd()) { 1275 Log.d(TAG, 1276 "Unexpectedly, the chip ended after the end of the editable text. " 1277 + "Chip End " + chip.getStoredChipEnd() 1278 + "Editable length " + editable.length()); 1279 } 1280 // Only set the span if we found a matching token. 1281 if (chipStart != -1) { 1282 editable.setSpan(chip, chipStart, chipEnd, 1283 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1284 } 1285 } 1286 mRemovedSpans.clear(); 1287 } 1288 } 1289 } 1290 1291 /** 1292 * Show specified chip as selected. If the RecipientChip is just an email address, 1293 * selecting the chip will take the contents of the chip and place it at 1294 * the end of the RecipientEditTextView for inline editing. If the 1295 * RecipientChip is a complete contact, then selecting the chip 1296 * will change the background color of the chip, show the delete icon, 1297 * and a popup window with the address in use highlighted and any other 1298 * alternate addresses for the contact. 1299 * @param currentChip Chip to select. 1300 * @return A RecipientChip in the selected state or null if the chip 1301 * just contained an email address. 1302 */ 1303 public RecipientChip selectChip(RecipientChip currentChip) { 1304 if (currentChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1305 CharSequence text = currentChip.getValue(); 1306 Editable editable = getText(); 1307 removeChip(currentChip); 1308 editable.append(text); 1309 setCursorVisible(true); 1310 setSelection(editable.length()); 1311 return null; 1312 } else if (currentChip.getContactId() == RecipientEntry.GENERATED_CONTACT) { 1313 int start = getChipStart(currentChip); 1314 int end = getChipEnd(currentChip); 1315 getSpannable().removeSpan(currentChip); 1316 RecipientChip newChip; 1317 try { 1318 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1319 } catch (NullPointerException e) { 1320 Log.e(TAG, e.getMessage(), e); 1321 return null; 1322 } 1323 Editable editable = getText(); 1324 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1325 if (start == -1 || end == -1) { 1326 Log.d(TAG, "The chip being selected no longer exists but should."); 1327 } else { 1328 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1329 } 1330 newChip.setSelected(true); 1331 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1332 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1333 } 1334 showAddress(newChip, mAddressPopup, getWidth(), getContext()); 1335 setCursorVisible(false); 1336 return newChip; 1337 } else { 1338 int start = getChipStart(currentChip); 1339 int end = getChipEnd(currentChip); 1340 getSpannable().removeSpan(currentChip); 1341 RecipientChip newChip; 1342 try { 1343 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1344 } catch (NullPointerException e) { 1345 Log.e(TAG, e.getMessage(), e); 1346 return null; 1347 } 1348 Editable editable = getText(); 1349 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1350 if (start == -1 || end == -1) { 1351 Log.d(TAG, "The chip being selected no longer exists but should."); 1352 } else { 1353 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1354 } 1355 newChip.setSelected(true); 1356 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1357 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1358 } 1359 showAlternates(newChip, mAlternatesPopup, getWidth(), getContext()); 1360 setCursorVisible(false); 1361 return newChip; 1362 } 1363 } 1364 1365 1366 private void showAddress(final RecipientChip currentChip, final ListPopupWindow popup, 1367 int width, Context context) { 1368 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1369 int bottom = calculateOffsetFromBottom(line); 1370 // Align the alternates popup with the left side of the View, 1371 // regardless of the position of the chip tapped. 1372 popup.setWidth(width); 1373 popup.setAnchorView(this); 1374 popup.setVerticalOffset(bottom); 1375 popup.setAdapter(createSingleAddressAdapter(currentChip)); 1376 popup.setOnItemClickListener(new OnItemClickListener() { 1377 @Override 1378 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1379 unselectChip(currentChip); 1380 popup.dismiss(); 1381 } 1382 }); 1383 popup.show(); 1384 ListView listView = popup.getListView(); 1385 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1386 listView.setItemChecked(0, true); 1387 } 1388 1389 /** 1390 * Remove selection from this chip. Unselecting a RecipientChip will render 1391 * the chip without a delete icon and with an unfocused background. This 1392 * is called when the RecipientChip no longer has focus. 1393 */ 1394 public void unselectChip(RecipientChip chip) { 1395 int start = getChipStart(chip); 1396 int end = getChipEnd(chip); 1397 Editable editable = getText(); 1398 mSelectedChip = null; 1399 if (start == -1 || end == -1) { 1400 Log.e(TAG, "The chip being unselected no longer exists but should."); 1401 } else { 1402 getSpannable().removeSpan(chip); 1403 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1404 editable.removeSpan(chip); 1405 try { 1406 editable.setSpan(constructChipSpan(chip.getEntry(), start, false), start, end, 1407 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1408 } catch (NullPointerException e) { 1409 Log.e(TAG, e.getMessage(), e); 1410 } 1411 } 1412 setCursorVisible(true); 1413 setSelection(editable.length()); 1414 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1415 mAlternatesPopup.dismiss(); 1416 } 1417 } 1418 1419 1420 /** 1421 * Return whether this chip contains the position passed in. 1422 */ 1423 public boolean matchesChip(RecipientChip chip, int offset) { 1424 int start = getChipStart(chip); 1425 int end = getChipEnd(chip); 1426 if (start == -1 || end == -1) { 1427 return false; 1428 } 1429 return (offset >= start && offset <= end); 1430 } 1431 1432 1433 /** 1434 * Return whether a touch event was inside the delete target of 1435 * a selected chip. It is in the delete target if: 1436 * 1) the x and y points of the event are within the 1437 * delete assset. 1438 * 2) the point tapped would have caused a cursor to appear 1439 * right after the selected chip. 1440 * @return boolean 1441 */ 1442 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1443 // Figure out the bounds of this chip and whether or not 1444 // the user clicked in the X portion. 1445 return chip.isSelected() && offset == getChipEnd(chip); 1446 } 1447 1448 /** 1449 * Remove the chip and any text associated with it from the RecipientEditTextView. 1450 */ 1451 private void removeChip(RecipientChip chip) { 1452 Spannable spannable = getSpannable(); 1453 int spanStart = spannable.getSpanStart(chip); 1454 int spanEnd = spannable.getSpanEnd(chip); 1455 Editable text = getText(); 1456 int toDelete = spanEnd; 1457 boolean wasSelected = chip == mSelectedChip; 1458 // Clear that there is a selected chip before updating any text. 1459 if (wasSelected) { 1460 mSelectedChip = null; 1461 } 1462 // Always remove trailing spaces when removing a chip. 1463 while (toDelete >= 0 && toDelete < text.length() && text.charAt(toDelete) == ' ') { 1464 toDelete++; 1465 } 1466 spannable.removeSpan(chip); 1467 text.delete(spanStart, toDelete); 1468 if (wasSelected) { 1469 clearSelectedChip(); 1470 } 1471 } 1472 1473 /** 1474 * Replace this currently selected chip with a new chip 1475 * that uses the contact data provided. 1476 */ 1477 public void replaceChip(RecipientChip chip, RecipientEntry entry) { 1478 boolean wasSelected = chip == mSelectedChip; 1479 if (wasSelected) { 1480 mSelectedChip = null; 1481 } 1482 int start = getChipStart(chip); 1483 int end = getChipEnd(chip); 1484 getSpannable().removeSpan(chip); 1485 Editable editable = getText(); 1486 CharSequence chipText = createChip(entry, false); 1487 if (start == -1 || end == -1) { 1488 Log.e(TAG, "The chip to replace does not exist but should."); 1489 editable.insert(0, chipText); 1490 } else { 1491 // There may be a space to replace with this chip's new associated 1492 // space. Check for it. 1493 int toReplace = end; 1494 while (toReplace >= 0 && toReplace < editable.length() 1495 && editable.charAt(toReplace) == ' ') { 1496 toReplace++; 1497 } 1498 editable.replace(start, toReplace, chipText); 1499 } 1500 setCursorVisible(true); 1501 if (wasSelected) { 1502 clearSelectedChip(); 1503 } 1504 } 1505 1506 /** 1507 * Handle click events for a chip. When a selected chip receives a click 1508 * event, see if that event was in the delete icon. If so, delete it. 1509 * Otherwise, unselect the chip. 1510 */ 1511 public void onClick(RecipientChip chip, int offset, float x, float y) { 1512 if (chip.isSelected()) { 1513 if (isInDelete(chip, offset, x, y)) { 1514 removeChip(chip); 1515 } else { 1516 clearSelectedChip(); 1517 } 1518 } 1519 } 1520 1521 private boolean chipsPending() { 1522 return mPendingChipsCount > 0 || (mRemovedSpans != null && mRemovedSpans.size() > 0); 1523 } 1524 1525 private class RecipientTextWatcher implements TextWatcher { 1526 @Override 1527 public void afterTextChanged(Editable s) { 1528 // If the text has been set to null or empty, make sure we remove 1529 // all the spans we applied. 1530 if (TextUtils.isEmpty(s)) { 1531 // Remove all the chips spans. 1532 Spannable spannable = getSpannable(); 1533 RecipientChip[] chips = spannable.getSpans(0, getText().length(), 1534 RecipientChip.class); 1535 for (RecipientChip chip : chips) { 1536 spannable.removeSpan(chip); 1537 } 1538 if (mMoreChip != null) { 1539 spannable.removeSpan(mMoreChip); 1540 } 1541 return; 1542 } 1543 // Get whether there are any recipients pending addition to the 1544 // view. If there are, don't do anything in the text watcher. 1545 if (chipsPending()) { 1546 return; 1547 } 1548 if (mSelectedChip != null) { 1549 setCursorVisible(true); 1550 setSelection(getText().length()); 1551 clearSelectedChip(); 1552 } 1553 int length = s.length(); 1554 // Make sure there is content there to parse and that it is 1555 // not just the commit character. 1556 if (length > 1) { 1557 char last; 1558 int end = getSelectionEnd() == 0 ? 0 : getSelectionEnd() - 1; 1559 int len = length() - 1; 1560 if (end != len) { 1561 last = s.charAt(end); 1562 } else { 1563 last = s.charAt(len); 1564 } 1565 if (last == COMMIT_CHAR_SEMICOLON || last == COMMIT_CHAR_COMMA) { 1566 commitByCharacter(); 1567 } else if (last == COMMIT_CHAR_SPACE) { 1568 // Check if this is a valid email address. If it is, 1569 // commit it. 1570 String text = getText().toString(); 1571 int tokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 1572 String sub = text.substring(tokenStart, mTokenizer.findTokenEnd(text, 1573 tokenStart)); 1574 if (mValidator != null && mValidator.isValid(sub)) { 1575 commitByCharacter(); 1576 } 1577 } 1578 } 1579 } 1580 1581 @Override 1582 public void onTextChanged(CharSequence s, int start, int before, int count) { 1583 // Do nothing. 1584 } 1585 1586 @Override 1587 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 1588 } 1589 } 1590 1591 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 1592 private RecipientChip createFreeChip(RecipientEntry entry) { 1593 String displayText = entry.getDestination(); 1594 displayText = (String) mTokenizer.terminateToken(displayText); 1595 try { 1596 return constructChipSpan(entry, -1, false); 1597 } catch (NullPointerException e) { 1598 Log.e(TAG, e.getMessage(), e); 1599 return null; 1600 } 1601 } 1602 1603 @Override 1604 protected Void doInBackground(Void... params) { 1605 if (mIndividualReplacements != null) { 1606 mIndividualReplacements.cancel(true); 1607 } 1608 // For each chip in the list, look up the matching contact. 1609 // If there is a match, replace that chip with the matching 1610 // chip. 1611 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 1612 RecipientChip[] existingChips = getSpannable().getSpans(0, getText().length(), 1613 RecipientChip.class); 1614 for (int i = 0; i < existingChips.length; i++) { 1615 originalRecipients.add(existingChips[i]); 1616 } 1617 if (mRemovedSpans != null) { 1618 originalRecipients.addAll(mRemovedSpans); 1619 } 1620 String[] addresses = new String[originalRecipients.size()]; 1621 for (int i = 0; i < originalRecipients.size(); i++) { 1622 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1623 } 1624 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1625 .getMatchingRecipients(getContext(), addresses); 1626 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 1627 for (final RecipientChip temp : originalRecipients) { 1628 RecipientEntry entry = null; 1629 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1630 && getSpannable().getSpanStart(temp) != -1) { 1631 // Replace this. 1632 entry = createValidatedEntry(entries.get(tokenizeAddress(temp.getEntry() 1633 .getDestination()))); 1634 } 1635 if (entry != null) { 1636 replacements.add(createFreeChip(entry)); 1637 } else { 1638 replacements.add(temp); 1639 } 1640 } 1641 if (replacements != null && replacements.size() > 0) { 1642 mHandler.post(new Runnable() { 1643 @Override 1644 public void run() { 1645 SpannableStringBuilder text = new SpannableStringBuilder(getText() 1646 .toString()); 1647 Editable oldText = getText(); 1648 int start, end; 1649 int i = 0; 1650 for (RecipientChip chip : originalRecipients) { 1651 start = oldText.getSpanStart(chip); 1652 if (start != -1) { 1653 end = oldText.getSpanEnd(chip); 1654 text.removeSpan(chip); 1655 // Leave a spot for the space! 1656 text.setSpan(replacements.get(i), start, end, 1657 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1658 } 1659 i++; 1660 } 1661 Editable editable = getText(); 1662 editable.clear(); 1663 editable.insert(0, text); 1664 originalRecipients.clear(); 1665 } 1666 }); 1667 } 1668 return null; 1669 } 1670 } 1671 1672 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 1673 @SuppressWarnings("unchecked") 1674 @Override 1675 protected Void doInBackground(Object... params) { 1676 // For each chip in the list, look up the matching contact. 1677 // If there is a match, replace that chip with the matching 1678 // chip. 1679 final ArrayList<RecipientChip> originalRecipients = 1680 (ArrayList<RecipientChip>) params[0]; 1681 String[] addresses = new String[originalRecipients.size()]; 1682 for (int i = 0; i < originalRecipients.size(); i++) { 1683 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1684 } 1685 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1686 .getMatchingRecipients(getContext(), addresses); 1687 for (final RecipientChip temp : originalRecipients) { 1688 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1689 && getSpannable().getSpanStart(temp) != -1) { 1690 // Replace this. 1691 final RecipientEntry entry = createValidatedEntry(entries 1692 .get(tokenizeAddress(temp.getEntry().getDestination()))); 1693 if (entry != null) { 1694 mHandler.post(new Runnable() { 1695 @Override 1696 public void run() { 1697 replaceChip(temp, entry); 1698 } 1699 }); 1700 } 1701 } 1702 } 1703 return null; 1704 } 1705 } 1706} 1707