RecipientEditTextView.java revision d58667fc7a460b8b56ccf9f0c35b92a2a9e0419c
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 if (entry != null) { 635 String destText = entry.getDestination(); 636 destText = (String) mTokenizer.terminateToken(destText); 637 // Always leave a blank space at the end of a chip. 638 int textLength = destText.length() - 1; 639 SpannableString chipText = new SpannableString(destText); 640 int end = getSelectionEnd(); 641 int start = mTokenizer.findTokenStart(getText(), end); 642 RecipientChip chip = null; 643 try { 644 chip = constructChipSpan(entry, start, false); 645 chipText.setSpan(chip, 0, textLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 646 } catch (NullPointerException e) { 647 Log.e(TAG, e.getMessage(), e); 648 } 649 650 editable.replace(tokenStart, tokenEnd, chipText); 651 // Add this chip to the list of entries "to replace" 652 if (chip != null) { 653 mTemporaryRecipients.add(chip); 654 } 655 } 656 } 657 658 private RecipientEntry createTokenizedEntry(String token) { 659 if (TextUtils.isEmpty(token)) { 660 return null; 661 } 662 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(token); 663 String display = null; 664 if (isValid(token) && tokens != null && tokens.length > 0) { 665 display = tokens[0].getName(); 666 if (!TextUtils.isEmpty(display)) { 667 return RecipientEntry.constructGeneratedEntry(display, token); 668 } 669 display = tokens[0].getAddress(); 670 if (!TextUtils.isEmpty(display)) { 671 return RecipientEntry.constructGeneratedEntry(display, token); 672 } 673 } 674 // Unable to validate the token or to create a valid token from it. 675 // Just create a chip the user can edit. 676 if (mValidator != null && !mValidator.isValid(token)) { 677 // Try fixing up the entry using the validator. 678 token = mValidator.fixText(token).toString(); 679 if (tokens != null && tokens.length > 0) { 680 token = Rfc822Tokenizer.tokenize(token)[0].getAddress(); 681 } 682 } 683 return RecipientEntry.constructFakeEntry(token); 684 } 685 686 private boolean isValid(String text) { 687 return mValidator == null ? true : mValidator.isValid(text); 688 } 689 690 private String tokenizeAddress(String destination) { 691 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(destination); 692 if (tokens != null && tokens.length > 0) { 693 return tokens[0].getAddress(); 694 } 695 return destination; 696 } 697 698 @Override 699 public void setTokenizer(Tokenizer tokenizer) { 700 mTokenizer = tokenizer; 701 super.setTokenizer(mTokenizer); 702 } 703 704 @Override 705 public void setValidator(Validator validator) { 706 mValidator = validator; 707 super.setValidator(validator); 708 } 709 710 /** 711 * We cannot use the default mechanism for replaceText. Instead, 712 * we override onItemClickListener so we can get all the associated 713 * contact information including display text, address, and id. 714 */ 715 @Override 716 protected void replaceText(CharSequence text) { 717 return; 718 } 719 720 /** 721 * Dismiss any selected chips when the back key is pressed. 722 */ 723 @Override 724 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 725 if (keyCode == KeyEvent.KEYCODE_BACK) { 726 clearSelectedChip(); 727 } 728 return super.onKeyPreIme(keyCode, event); 729 } 730 731 /** 732 * Monitor key presses in this view to see if the user types 733 * any commit keys, which consist of ENTER, TAB, or DPAD_CENTER. 734 * If the user has entered text that has contact matches and types 735 * a commit key, create a chip from the topmost matching contact. 736 * If the user has entered text that has no contact matches and types 737 * a commit key, then create a chip from the text they have entered. 738 */ 739 @Override 740 public boolean onKeyUp(int keyCode, KeyEvent event) { 741 switch (keyCode) { 742 case KeyEvent.KEYCODE_ENTER: 743 case KeyEvent.KEYCODE_DPAD_CENTER: 744 if (event.hasNoModifiers()) { 745 if (commitDefault()) { 746 return true; 747 } 748 if (mSelectedChip != null) { 749 clearSelectedChip(); 750 return true; 751 } else if (focusNext()) { 752 return true; 753 } 754 } 755 break; 756 case KeyEvent.KEYCODE_TAB: 757 if (event.hasNoModifiers()) { 758 if (mSelectedChip != null) { 759 clearSelectedChip(); 760 } else { 761 commitDefault(); 762 } 763 if (focusNext()) { 764 return true; 765 } 766 } 767 } 768 return super.onKeyUp(keyCode, event); 769 } 770 771 private boolean focusNext() { 772 View next = focusSearch(View.FOCUS_DOWN); 773 if (next != null) { 774 next.requestFocus(); 775 return true; 776 } 777 return false; 778 } 779 780 /** 781 * Create a chip from the default selection. If the popup is showing, the 782 * default is the first item in the popup suggestions list. Otherwise, it is 783 * whatever the user had typed in. End represents where the the tokenizer 784 * should search for a token to turn into a chip. 785 * @return If a chip was created from a real contact. 786 */ 787 private boolean commitDefault() { 788 Editable editable = getText(); 789 int end = getSelectionEnd(); 790 int start = mTokenizer.findTokenStart(editable, end); 791 792 if (shouldCreateChip(start, end)) { 793 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 794 // In the middle of chip; treat this as an edit 795 // and commit the whole token. 796 if (whatEnd != getSelectionEnd()) { 797 handleEdit(start, whatEnd); 798 return true; 799 } 800 return commitChip(start, end , editable); 801 } 802 return false; 803 } 804 805 private void commitByCharacter() { 806 Editable editable = getText(); 807 int end = getSelectionEnd(); 808 int start = mTokenizer.findTokenStart(editable, end); 809 if (shouldCreateChip(start, end)) { 810 commitChip(start, end, editable); 811 } 812 setSelection(getText().length()); 813 } 814 815 private boolean commitChip(int start, int end, Editable editable) { 816 if (getAdapter().getCount() > 0 && enoughToFilter()) { 817 // choose the first entry. 818 submitItemAtPosition(0); 819 dismissDropDown(); 820 return true; 821 } else { 822 int tokenEnd = mTokenizer.findTokenEnd(editable, start); 823 String text = editable.toString().substring(start, tokenEnd).trim(); 824 clearComposingText(); 825 if (text != null && text.length() > 0 && !text.equals(" ")) { 826 RecipientEntry entry = createTokenizedEntry(text); 827 if (entry != null) { 828 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 829 CharSequence chipText = createChip(entry, false); 830 editable.replace(start, end, chipText); 831 } 832 dismissDropDown(); 833 return true; 834 } 835 } 836 return false; 837 } 838 839 private boolean shouldCreateChip(int start, int end) { 840 return hasFocus() && enoughToFilter() && !alreadyHasChip(start, end); 841 } 842 843 private boolean alreadyHasChip(int start, int end) { 844 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 845 if ((chips == null || chips.length == 0)) { 846 return false; 847 } 848 return true; 849 } 850 851 private void handleEdit(int start, int end) { 852 // This is in the middle of a chip, so select out the whole chip 853 // and commit it. 854 Editable editable = getText(); 855 setSelection(end); 856 String text = getText().toString().substring(start, end); 857 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 858 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 859 CharSequence chipText = createChip(entry, false); 860 editable.replace(start, getSelectionEnd(), chipText); 861 dismissDropDown(); 862 } 863 864 /** 865 * If there is a selected chip, delegate the key events 866 * to the selected chip. 867 */ 868 @Override 869 public boolean onKeyDown(int keyCode, KeyEvent event) { 870 if (mSelectedChip != null && keyCode == KeyEvent.KEYCODE_DEL) { 871 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 872 mAlternatesPopup.dismiss(); 873 } 874 removeChip(mSelectedChip); 875 } 876 877 if (keyCode == KeyEvent.KEYCODE_ENTER && event.hasNoModifiers()) { 878 return true; 879 } 880 881 return super.onKeyDown(keyCode, event); 882 } 883 884 private Spannable getSpannable() { 885 return getText(); 886 } 887 888 private int getChipStart(RecipientChip chip) { 889 return getSpannable().getSpanStart(chip); 890 } 891 892 private int getChipEnd(RecipientChip chip) { 893 return getSpannable().getSpanEnd(chip); 894 } 895 896 /** 897 * Instead of filtering on the entire contents of the edit box, 898 * this subclass method filters on the range from 899 * {@link Tokenizer#findTokenStart} to {@link #getSelectionEnd} 900 * if the length of that range meets or exceeds {@link #getThreshold} 901 * and makes sure that the range is not already a Chip. 902 */ 903 @Override 904 protected void performFiltering(CharSequence text, int keyCode) { 905 if (enoughToFilter()) { 906 int end = getSelectionEnd(); 907 int start = mTokenizer.findTokenStart(text, end); 908 // If this is a RecipientChip, don't filter 909 // on its contents. 910 Spannable span = getSpannable(); 911 RecipientChip[] chips = span.getSpans(start, end, RecipientChip.class); 912 if (chips != null && chips.length > 0) { 913 return; 914 } 915 } 916 super.performFiltering(text, keyCode); 917 } 918 919 private void clearSelectedChip() { 920 if (mSelectedChip != null) { 921 unselectChip(mSelectedChip); 922 mSelectedChip = null; 923 } 924 setCursorVisible(true); 925 } 926 927 /** 928 * Monitor touch events in the RecipientEditTextView. 929 * If the view does not have focus, any tap on the view 930 * will just focus the view. If the view has focus, determine 931 * if the touch target is a recipient chip. If it is and the chip 932 * is not selected, select it and clear any other selected chips. 933 * If it isn't, then select that chip. 934 */ 935 @Override 936 public boolean onTouchEvent(MotionEvent event) { 937 if (!isFocused()) { 938 // Ignore any chip taps until this view is focused. 939 return super.onTouchEvent(event); 940 } 941 942 boolean handled = super.onTouchEvent(event); 943 int action = event.getAction(); 944 boolean chipWasSelected = false; 945 946 if (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_DOWN) { 947 float x = event.getX(); 948 float y = event.getY(); 949 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 950 RecipientChip currentChip = findChip(offset); 951 if (currentChip != null) { 952 if (action == MotionEvent.ACTION_UP) { 953 if (mSelectedChip != null && mSelectedChip != currentChip) { 954 clearSelectedChip(); 955 mSelectedChip = selectChip(currentChip); 956 } else if (mSelectedChip == null) { 957 // Selection may have moved due to the tap event, 958 // but make sure we correctly reset selection to the 959 // end so that any unfinished chips are committed. 960 setSelection(getText().length()); 961 commitDefault(); 962 mSelectedChip = selectChip(currentChip); 963 } else { 964 onClick(mSelectedChip, offset, x, y); 965 } 966 } 967 chipWasSelected = true; 968 handled = true; 969 } 970 } 971 if (action == MotionEvent.ACTION_UP && !chipWasSelected) { 972 clearSelectedChip(); 973 } 974 return handled; 975 } 976 977 private void scrollLineIntoView(int line) { 978 if (mScrollView != null) { 979 mScrollView.scrollBy(0, calculateOffsetFromBottom(line)); 980 } 981 } 982 983 private void showAlternates(RecipientChip currentChip, ListPopupWindow alternatesPopup, 984 int width, Context context) { 985 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 986 int bottom = calculateOffsetFromBottom(line); 987 // Align the alternates popup with the left side of the View, 988 // regardless of the position of the chip tapped. 989 alternatesPopup.setWidth(width); 990 alternatesPopup.setAnchorView(this); 991 alternatesPopup.setVerticalOffset(bottom); 992 alternatesPopup.setAdapter(createAlternatesAdapter(currentChip)); 993 alternatesPopup.setOnItemClickListener(mAlternatesListener); 994 alternatesPopup.show(); 995 ListView listView = alternatesPopup.getListView(); 996 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 997 // Checked item would be -1 if the adapter has not 998 // loaded the view that should be checked yet. The 999 // variable will be set correctly when onCheckedItemChanged 1000 // is called in a separate thread. 1001 if (mCheckedItem != -1) { 1002 listView.setItemChecked(mCheckedItem, true); 1003 mCheckedItem = -1; 1004 } 1005 } 1006 1007 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 1008 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 1009 mAlternatesLayout, this); 1010 } 1011 1012 private ListAdapter createSingleAddressAdapter(RecipientChip currentChip) { 1013 return new SingleRecipientArrayAdapter(getContext(), mAlternatesLayout, currentChip 1014 .getEntry()); 1015 } 1016 1017 public void onCheckedItemChanged(int position) { 1018 ListView listView = mAlternatesPopup.getListView(); 1019 if (listView != null && listView.getCheckedItemCount() == 0) { 1020 listView.setItemChecked(position, true); 1021 } else { 1022 mCheckedItem = position; 1023 } 1024 } 1025 1026 // TODO: This algorithm will need a lot of tweaking after more people have used 1027 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 1028 // what comes before the finger. 1029 private int putOffsetInRange(int o) { 1030 int offset = o; 1031 Editable text = getText(); 1032 int length = text.length(); 1033 // Remove whitespace from end to find "real end" 1034 int realLength = length; 1035 for (int i = length - 1; i >= 0; i--) { 1036 if (text.charAt(i) == ' ') { 1037 realLength--; 1038 } else { 1039 break; 1040 } 1041 } 1042 1043 // If the offset is beyond or at the end of the text, 1044 // leave it alone. 1045 if (offset >= realLength) { 1046 return offset; 1047 } 1048 Editable editable = getText(); 1049 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 1050 // Keep walking backward! 1051 offset--; 1052 } 1053 return offset; 1054 } 1055 1056 private int findText(Editable text, int offset) { 1057 if (text.charAt(offset) != ' ') { 1058 return offset; 1059 } 1060 return -1; 1061 } 1062 1063 private RecipientChip findChip(int offset) { 1064 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1065 // Find the chip that contains this offset. 1066 for (int i = 0; i < chips.length; i++) { 1067 RecipientChip chip = chips[i]; 1068 int start = getChipStart(chip); 1069 int end = getChipEnd(chip); 1070 if (offset >= start && offset <= end) { 1071 return chip; 1072 } 1073 } 1074 return null; 1075 } 1076 1077 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 1078 String displayText = entry.getDestination(); 1079 displayText = (String) mTokenizer.terminateToken(displayText); 1080 // Always leave a blank space at the end of a chip. 1081 int textLength = displayText.length()-1; 1082 SpannableString chipText = new SpannableString(displayText); 1083 int end = getSelectionEnd(); 1084 int start = mTokenizer.findTokenStart(getText(), end); 1085 try { 1086 chipText.setSpan(constructChipSpan(entry, start, pressed), 0, textLength, 1087 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1088 } catch (NullPointerException e) { 1089 Log.e(TAG, e.getMessage(), e); 1090 return null; 1091 } 1092 1093 return chipText; 1094 } 1095 1096 /** 1097 * When an item in the suggestions list has been clicked, create a chip from the 1098 * contact information of the selected item. 1099 */ 1100 @Override 1101 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1102 submitItemAtPosition(position); 1103 } 1104 1105 private void submitItemAtPosition(int position) { 1106 RecipientEntry entry = createValidatedEntry( 1107 (RecipientEntry)getAdapter().getItem(position)); 1108 if (entry == null) { 1109 return; 1110 } 1111 clearComposingText(); 1112 1113 int end = getSelectionEnd(); 1114 int start = mTokenizer.findTokenStart(getText(), end); 1115 1116 Editable editable = getText(); 1117 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1118 CharSequence chip = createChip(entry, false); 1119 if (chip != null) { 1120 editable.replace(start, end, chip); 1121 } 1122 } 1123 1124 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1125 if (item == null) { 1126 return null; 1127 } 1128 final RecipientEntry entry; 1129 // If the display name and the address are the same, or if this is a 1130 // valid contact, but the destination is invalid, then make this a fake 1131 // recipient that is editable. 1132 String destination = item.getDestination(); 1133 if (TextUtils.isEmpty(item.getDisplayName()) 1134 || TextUtils.equals(item.getDisplayName(), destination) 1135 || (mValidator != null && !mValidator.isValid(destination))) { 1136 entry = RecipientEntry.constructFakeEntry(destination); 1137 } else { 1138 entry = item; 1139 } 1140 return entry; 1141 } 1142 1143 /** Returns a collection of contact Id for each chip inside this View. */ 1144 /* package */ Collection<Long> getContactIds() { 1145 final Set<Long> result = new HashSet<Long>(); 1146 RecipientChip[] chips = getRecipients(); 1147 if (chips != null) { 1148 for (RecipientChip chip : chips) { 1149 result.add(chip.getContactId()); 1150 } 1151 } 1152 return result; 1153 } 1154 1155 private RecipientChip[] getRecipients() { 1156 return getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1157 } 1158 1159 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1160 /* package */ Collection<Long> getDataIds() { 1161 final Set<Long> result = new HashSet<Long>(); 1162 RecipientChip [] chips = getRecipients(); 1163 if (chips != null) { 1164 for (RecipientChip chip : chips) { 1165 result.add(chip.getDataId()); 1166 } 1167 } 1168 return result; 1169 } 1170 1171 1172 @Override 1173 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1174 return false; 1175 } 1176 1177 @Override 1178 public void onDestroyActionMode(ActionMode mode) { 1179 } 1180 1181 @Override 1182 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1183 return false; 1184 } 1185 1186 /** 1187 * No chips are selectable. 1188 */ 1189 @Override 1190 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1191 return false; 1192 } 1193 1194 /** 1195 * Create the more chip. The more chip is text that replaces any chips that 1196 * do not fit in the pre-defined available space when the 1197 * RecipientEditTextView loses focus. 1198 */ 1199 private void createMoreChip() { 1200 RecipientChip[] recipients = getRecipients(); 1201 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1202 mMoreChip = null; 1203 return; 1204 } 1205 int numRecipients = recipients.length; 1206 int overage = numRecipients - CHIP_LIMIT; 1207 Editable text = getText(); 1208 String moreText = String.format(mMoreItem.getText().toString(), overage); 1209 TextPaint morePaint = new TextPaint(getPaint()); 1210 morePaint.setTextSize(mMoreItem.getTextSize()); 1211 morePaint.setColor(mMoreItem.getCurrentTextColor()); 1212 int width = (int)morePaint.measureText(moreText) + mMoreItem.getPaddingLeft() 1213 + mMoreItem.getPaddingRight(); 1214 int height = getLineHeight(); 1215 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1216 Canvas canvas = new Canvas(drawable); 1217 canvas.drawText(moreText, 0, moreText.length(), 0, height - getLayout().getLineDescent(0), 1218 morePaint); 1219 1220 Drawable result = new BitmapDrawable(getResources(), drawable); 1221 result.setBounds(0, 0, width, height); 1222 ImageSpan moreSpan = new ImageSpan(result); 1223 Spannable spannable = getSpannable(); 1224 // Remove the overage chips. 1225 if (recipients == null || recipients.length == 0) { 1226 Log.w(TAG, 1227 "We have recipients. Tt should not be possible to have zero RecipientChips."); 1228 mMoreChip = null; 1229 return; 1230 } 1231 mRemovedSpans = new ArrayList<RecipientChip>(); 1232 int totalReplaceStart = 0; 1233 int totalReplaceEnd = 0; 1234 for (int i = numRecipients - overage; i < recipients.length; i++) { 1235 mRemovedSpans.add(recipients[i]); 1236 if (i == numRecipients - overage) { 1237 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1238 } 1239 if (i == recipients.length - 1) { 1240 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1241 } 1242 if (mTemporaryRecipients != null && !mTemporaryRecipients.contains(recipients[i])) { 1243 recipients[i].storeChipStart(spannable.getSpanStart(recipients[i])); 1244 recipients[i].storeChipEnd(spannable.getSpanEnd(recipients[i])); 1245 } 1246 spannable.removeSpan(recipients[i]); 1247 } 1248 // TODO: why would these ever be backwards? 1249 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1250 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1251 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1252 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1253 text.replace(start, end, chipText); 1254 mMoreChip = moreSpan; 1255 } 1256 1257 /** 1258 * Replace the more chip, if it exists, with all of the recipient chips it had 1259 * replaced when the RecipientEditTextView gains focus. 1260 */ 1261 private void removeMoreChip() { 1262 if (mMoreChip != null) { 1263 Spannable span = getSpannable(); 1264 span.removeSpan(mMoreChip); 1265 mMoreChip = null; 1266 // Re-add the spans that were removed. 1267 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1268 // Recreate each removed span. 1269 Editable editable = getText(); 1270 for (RecipientChip chip : mRemovedSpans) { 1271 int chipStart = chip.getStoredChipStart(); 1272 int chipEnd; 1273 String token; 1274 if (chipStart == -1) { 1275 // Need to find the location of the chip, again. 1276 token = (String)mTokenizer.terminateToken(chip.getEntry().getDestination()); 1277 chipStart = editable.toString().indexOf(token); 1278 // -1 for the space! 1279 chipEnd = chipStart + token.length() - 1; 1280 } else { 1281 chipEnd = Math.min(editable.length(), chip.getStoredChipEnd()); 1282 } 1283 if (Log.isLoggable(TAG, Log.DEBUG) && chipEnd != chip.getStoredChipEnd()) { 1284 Log.d(TAG, 1285 "Unexpectedly, the chip ended after the end of the editable text. " 1286 + "Chip End " + chip.getStoredChipEnd() 1287 + "Editable length " + editable.length()); 1288 } 1289 // Only set the span if we found a matching token. 1290 if (chipStart != -1) { 1291 editable.setSpan(chip, chipStart, chipEnd, 1292 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1293 } 1294 } 1295 mRemovedSpans.clear(); 1296 } 1297 } 1298 } 1299 1300 /** 1301 * Show specified chip as selected. If the RecipientChip is just an email address, 1302 * selecting the chip will take the contents of the chip and place it at 1303 * the end of the RecipientEditTextView for inline editing. If the 1304 * RecipientChip is a complete contact, then selecting the chip 1305 * will change the background color of the chip, show the delete icon, 1306 * and a popup window with the address in use highlighted and any other 1307 * alternate addresses for the contact. 1308 * @param currentChip Chip to select. 1309 * @return A RecipientChip in the selected state or null if the chip 1310 * just contained an email address. 1311 */ 1312 public RecipientChip selectChip(RecipientChip currentChip) { 1313 if (currentChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1314 CharSequence text = currentChip.getValue(); 1315 Editable editable = getText(); 1316 removeChip(currentChip); 1317 editable.append(text); 1318 setCursorVisible(true); 1319 setSelection(editable.length()); 1320 return null; 1321 } else if (currentChip.getContactId() == RecipientEntry.GENERATED_CONTACT) { 1322 int start = getChipStart(currentChip); 1323 int end = getChipEnd(currentChip); 1324 getSpannable().removeSpan(currentChip); 1325 RecipientChip newChip; 1326 try { 1327 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1328 } catch (NullPointerException e) { 1329 Log.e(TAG, e.getMessage(), e); 1330 return null; 1331 } 1332 Editable editable = getText(); 1333 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1334 if (start == -1 || end == -1) { 1335 Log.d(TAG, "The chip being selected no longer exists but should."); 1336 } else { 1337 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1338 } 1339 newChip.setSelected(true); 1340 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1341 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1342 } 1343 showAddress(newChip, mAddressPopup, getWidth(), getContext()); 1344 setCursorVisible(false); 1345 return newChip; 1346 } else { 1347 int start = getChipStart(currentChip); 1348 int end = getChipEnd(currentChip); 1349 getSpannable().removeSpan(currentChip); 1350 RecipientChip newChip; 1351 try { 1352 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1353 } catch (NullPointerException e) { 1354 Log.e(TAG, e.getMessage(), e); 1355 return null; 1356 } 1357 Editable editable = getText(); 1358 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1359 if (start == -1 || end == -1) { 1360 Log.d(TAG, "The chip being selected no longer exists but should."); 1361 } else { 1362 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1363 } 1364 newChip.setSelected(true); 1365 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1366 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1367 } 1368 showAlternates(newChip, mAlternatesPopup, getWidth(), getContext()); 1369 setCursorVisible(false); 1370 return newChip; 1371 } 1372 } 1373 1374 1375 private void showAddress(final RecipientChip currentChip, final ListPopupWindow popup, 1376 int width, Context context) { 1377 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1378 int bottom = calculateOffsetFromBottom(line); 1379 // Align the alternates popup with the left side of the View, 1380 // regardless of the position of the chip tapped. 1381 popup.setWidth(width); 1382 popup.setAnchorView(this); 1383 popup.setVerticalOffset(bottom); 1384 popup.setAdapter(createSingleAddressAdapter(currentChip)); 1385 popup.setOnItemClickListener(new OnItemClickListener() { 1386 @Override 1387 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1388 unselectChip(currentChip); 1389 popup.dismiss(); 1390 } 1391 }); 1392 popup.show(); 1393 ListView listView = popup.getListView(); 1394 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1395 listView.setItemChecked(0, true); 1396 } 1397 1398 /** 1399 * Remove selection from this chip. Unselecting a RecipientChip will render 1400 * the chip without a delete icon and with an unfocused background. This 1401 * is called when the RecipientChip no longer has focus. 1402 */ 1403 public void unselectChip(RecipientChip chip) { 1404 int start = getChipStart(chip); 1405 int end = getChipEnd(chip); 1406 Editable editable = getText(); 1407 mSelectedChip = null; 1408 if (start == -1 || end == -1) { 1409 Log.e(TAG, "The chip being unselected no longer exists but should."); 1410 } else { 1411 getSpannable().removeSpan(chip); 1412 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1413 editable.removeSpan(chip); 1414 try { 1415 editable.setSpan(constructChipSpan(chip.getEntry(), start, false), start, end, 1416 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1417 } catch (NullPointerException e) { 1418 Log.e(TAG, e.getMessage(), e); 1419 } 1420 } 1421 setCursorVisible(true); 1422 setSelection(editable.length()); 1423 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1424 mAlternatesPopup.dismiss(); 1425 } 1426 } 1427 1428 1429 /** 1430 * Return whether this chip contains the position passed in. 1431 */ 1432 public boolean matchesChip(RecipientChip chip, int offset) { 1433 int start = getChipStart(chip); 1434 int end = getChipEnd(chip); 1435 if (start == -1 || end == -1) { 1436 return false; 1437 } 1438 return (offset >= start && offset <= end); 1439 } 1440 1441 1442 /** 1443 * Return whether a touch event was inside the delete target of 1444 * a selected chip. It is in the delete target if: 1445 * 1) the x and y points of the event are within the 1446 * delete assset. 1447 * 2) the point tapped would have caused a cursor to appear 1448 * right after the selected chip. 1449 * @return boolean 1450 */ 1451 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1452 // Figure out the bounds of this chip and whether or not 1453 // the user clicked in the X portion. 1454 return chip.isSelected() && offset == getChipEnd(chip); 1455 } 1456 1457 /** 1458 * Remove the chip and any text associated with it from the RecipientEditTextView. 1459 */ 1460 private void removeChip(RecipientChip chip) { 1461 Spannable spannable = getSpannable(); 1462 int spanStart = spannable.getSpanStart(chip); 1463 int spanEnd = spannable.getSpanEnd(chip); 1464 Editable text = getText(); 1465 int toDelete = spanEnd; 1466 boolean wasSelected = chip == mSelectedChip; 1467 // Clear that there is a selected chip before updating any text. 1468 if (wasSelected) { 1469 mSelectedChip = null; 1470 } 1471 // Always remove trailing spaces when removing a chip. 1472 while (toDelete >= 0 && toDelete < text.length() && text.charAt(toDelete) == ' ') { 1473 toDelete++; 1474 } 1475 spannable.removeSpan(chip); 1476 text.delete(spanStart, toDelete); 1477 if (wasSelected) { 1478 clearSelectedChip(); 1479 } 1480 } 1481 1482 /** 1483 * Replace this currently selected chip with a new chip 1484 * that uses the contact data provided. 1485 */ 1486 public void replaceChip(RecipientChip chip, RecipientEntry entry) { 1487 boolean wasSelected = chip == mSelectedChip; 1488 if (wasSelected) { 1489 mSelectedChip = null; 1490 } 1491 int start = getChipStart(chip); 1492 int end = getChipEnd(chip); 1493 getSpannable().removeSpan(chip); 1494 Editable editable = getText(); 1495 CharSequence chipText = createChip(entry, false); 1496 if (start == -1 || end == -1) { 1497 Log.e(TAG, "The chip to replace does not exist but should."); 1498 editable.insert(0, chipText); 1499 } else { 1500 // There may be a space to replace with this chip's new associated 1501 // space. Check for it. 1502 int toReplace = end; 1503 while (toReplace >= 0 && toReplace < editable.length() 1504 && editable.charAt(toReplace) == ' ') { 1505 toReplace++; 1506 } 1507 editable.replace(start, toReplace, chipText); 1508 } 1509 setCursorVisible(true); 1510 if (wasSelected) { 1511 clearSelectedChip(); 1512 } 1513 } 1514 1515 /** 1516 * Handle click events for a chip. When a selected chip receives a click 1517 * event, see if that event was in the delete icon. If so, delete it. 1518 * Otherwise, unselect the chip. 1519 */ 1520 public void onClick(RecipientChip chip, int offset, float x, float y) { 1521 if (chip.isSelected()) { 1522 if (isInDelete(chip, offset, x, y)) { 1523 removeChip(chip); 1524 } else { 1525 clearSelectedChip(); 1526 } 1527 } 1528 } 1529 1530 private boolean chipsPending() { 1531 return mPendingChipsCount > 0 || (mRemovedSpans != null && mRemovedSpans.size() > 0); 1532 } 1533 1534 private class RecipientTextWatcher implements TextWatcher { 1535 @Override 1536 public void afterTextChanged(Editable s) { 1537 // If the text has been set to null or empty, make sure we remove 1538 // all the spans we applied. 1539 if (TextUtils.isEmpty(s)) { 1540 // Remove all the chips spans. 1541 Spannable spannable = getSpannable(); 1542 RecipientChip[] chips = spannable.getSpans(0, getText().length(), 1543 RecipientChip.class); 1544 for (RecipientChip chip : chips) { 1545 spannable.removeSpan(chip); 1546 } 1547 if (mMoreChip != null) { 1548 spannable.removeSpan(mMoreChip); 1549 } 1550 return; 1551 } 1552 // Get whether there are any recipients pending addition to the 1553 // view. If there are, don't do anything in the text watcher. 1554 if (chipsPending()) { 1555 return; 1556 } 1557 if (mSelectedChip != null) { 1558 setCursorVisible(true); 1559 setSelection(getText().length()); 1560 clearSelectedChip(); 1561 } 1562 int length = s.length(); 1563 // Make sure there is content there to parse and that it is 1564 // not just the commit character. 1565 if (length > 1) { 1566 char last; 1567 int end = getSelectionEnd() == 0 ? 0 : getSelectionEnd() - 1; 1568 int len = length() - 1; 1569 if (end != len) { 1570 last = s.charAt(end); 1571 } else { 1572 last = s.charAt(len); 1573 } 1574 if (last == COMMIT_CHAR_SEMICOLON || last == COMMIT_CHAR_COMMA) { 1575 commitByCharacter(); 1576 } else if (last == COMMIT_CHAR_SPACE) { 1577 // Check if this is a valid email address. If it is, 1578 // commit it. 1579 String text = getText().toString(); 1580 int tokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 1581 String sub = text.substring(tokenStart, mTokenizer.findTokenEnd(text, 1582 tokenStart)); 1583 if (mValidator != null && mValidator.isValid(sub)) { 1584 commitByCharacter(); 1585 } 1586 } 1587 } 1588 } 1589 1590 @Override 1591 public void onTextChanged(CharSequence s, int start, int before, int count) { 1592 // Do nothing. 1593 } 1594 1595 @Override 1596 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 1597 } 1598 } 1599 1600 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 1601 private RecipientChip createFreeChip(RecipientEntry entry) { 1602 String displayText = entry.getDestination(); 1603 displayText = (String) mTokenizer.terminateToken(displayText); 1604 try { 1605 return constructChipSpan(entry, -1, false); 1606 } catch (NullPointerException e) { 1607 Log.e(TAG, e.getMessage(), e); 1608 return null; 1609 } 1610 } 1611 1612 @Override 1613 protected Void doInBackground(Void... params) { 1614 if (mIndividualReplacements != null) { 1615 mIndividualReplacements.cancel(true); 1616 } 1617 // For each chip in the list, look up the matching contact. 1618 // If there is a match, replace that chip with the matching 1619 // chip. 1620 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 1621 RecipientChip[] existingChips = getSpannable().getSpans(0, getText().length(), 1622 RecipientChip.class); 1623 for (int i = 0; i < existingChips.length; i++) { 1624 originalRecipients.add(existingChips[i]); 1625 } 1626 if (mRemovedSpans != null) { 1627 originalRecipients.addAll(mRemovedSpans); 1628 } 1629 String[] addresses = new String[originalRecipients.size()]; 1630 for (int i = 0; i < originalRecipients.size(); i++) { 1631 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1632 } 1633 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1634 .getMatchingRecipients(getContext(), addresses); 1635 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 1636 for (final RecipientChip temp : originalRecipients) { 1637 RecipientEntry entry = null; 1638 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1639 && getSpannable().getSpanStart(temp) != -1) { 1640 // Replace this. 1641 entry = createValidatedEntry(entries.get(tokenizeAddress(temp.getEntry() 1642 .getDestination()))); 1643 } 1644 if (entry != null) { 1645 replacements.add(createFreeChip(entry)); 1646 } else { 1647 replacements.add(temp); 1648 } 1649 } 1650 if (replacements != null && replacements.size() > 0) { 1651 mHandler.post(new Runnable() { 1652 @Override 1653 public void run() { 1654 SpannableStringBuilder text = new SpannableStringBuilder(getText() 1655 .toString()); 1656 Editable oldText = getText(); 1657 int start, end; 1658 int i = 0; 1659 for (RecipientChip chip : originalRecipients) { 1660 start = oldText.getSpanStart(chip); 1661 if (start != -1) { 1662 end = oldText.getSpanEnd(chip); 1663 text.removeSpan(chip); 1664 // Leave a spot for the space! 1665 text.setSpan(replacements.get(i), start, end, 1666 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1667 } 1668 i++; 1669 } 1670 Editable editable = getText(); 1671 editable.clear(); 1672 editable.insert(0, text); 1673 originalRecipients.clear(); 1674 } 1675 }); 1676 } 1677 return null; 1678 } 1679 } 1680 1681 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 1682 @SuppressWarnings("unchecked") 1683 @Override 1684 protected Void doInBackground(Object... params) { 1685 // For each chip in the list, look up the matching contact. 1686 // If there is a match, replace that chip with the matching 1687 // chip. 1688 final ArrayList<RecipientChip> originalRecipients = 1689 (ArrayList<RecipientChip>) params[0]; 1690 String[] addresses = new String[originalRecipients.size()]; 1691 for (int i = 0; i < originalRecipients.size(); i++) { 1692 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1693 } 1694 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1695 .getMatchingRecipients(getContext(), addresses); 1696 for (final RecipientChip temp : originalRecipients) { 1697 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1698 && getSpannable().getSpanStart(temp) != -1) { 1699 // Replace this. 1700 final RecipientEntry entry = createValidatedEntry(entries 1701 .get(tokenizeAddress(temp.getEntry().getDestination()))); 1702 if (entry != null) { 1703 mHandler.post(new Runnable() { 1704 @Override 1705 public void run() { 1706 replaceChip(temp, entry); 1707 } 1708 }); 1709 } 1710 } 1711 } 1712 return null; 1713 } 1714 } 1715} 1716