RecipientEditTextView.java revision 184d3773dc096c7a6a83f7aeda042fa8346c2024
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.ActionMode.Callback; 48import android.view.KeyEvent; 49import android.view.LayoutInflater; 50import android.view.Menu; 51import android.view.MenuItem; 52import android.view.MotionEvent; 53import android.view.View; 54import android.view.ViewParent; 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.ArrayList; 66import java.util.Collection; 67import java.util.HashMap; 68import java.util.HashSet; 69import java.util.Set; 70 71/** 72 * RecipientEditTextView is an auto complete text view for use with applications 73 * that use the new Chips UI for addressing a message to recipients. 74 */ 75public class RecipientEditTextView extends MultiAutoCompleteTextView implements 76 OnItemClickListener, Callback, RecipientAlternatesAdapter.OnCheckedItemChangedListener { 77 78 private static final String TAG = "RecipientEditTextView"; 79 80 // TODO: get correct number/ algorithm from with UX. 81 private static final int CHIP_LIMIT = 2; 82 83 private Drawable mChipBackground = null; 84 85 private Drawable mChipDelete = null; 86 87 private int mChipPadding; 88 89 private Tokenizer mTokenizer; 90 91 private Drawable mChipBackgroundPressed; 92 93 private RecipientChip mSelectedChip; 94 95 private int mAlternatesLayout; 96 97 private Bitmap mDefaultContactPhoto; 98 99 private ImageSpan mMoreChip; 100 101 private TextView mMoreItem; 102 103 private final ArrayList<String> mPendingChips = new ArrayList<String>(); 104 105 private float mChipHeight; 106 107 private float mChipFontSize; 108 109 private Validator mValidator; 110 111 private Drawable mInvalidChipBackground; 112 113 private Handler mHandler; 114 115 private static int DISMISS = "dismiss".hashCode(); 116 117 private static final long DISMISS_DELAY = 300; 118 119 private int mPendingChipsCount = 0; 120 121 private static int sSelectedTextColor = -1; 122 123 private static final char COMMIT_CHAR_COMMA = ','; 124 125 private static final char COMMIT_CHAR_SEMICOLON = ';'; 126 127 private static final char COMMIT_CHAR_SPACE = ' '; 128 129 private ListPopupWindow mAlternatesPopup; 130 131 private ListPopupWindow mAddressPopup; 132 133 private ArrayList<RecipientChip> mTemporaryRecipients; 134 135 private ArrayList<RecipientChip> mRemovedSpans; 136 137 /** 138 * Used with {@link #mAlternatesPopup}. Handles clicks to alternate addresses for a 139 * selected chip. 140 */ 141 private OnItemClickListener mAlternatesListener; 142 143 private int mCheckedItem; 144 private TextWatcher mTextWatcher; 145 146 private ScrollView mScrollView; 147 148 private boolean mTried; 149 150 private final Runnable mAddTextWatcher = new Runnable() { 151 @Override 152 public void run() { 153 if (mTextWatcher == null) { 154 mTextWatcher = new RecipientTextWatcher(); 155 addTextChangedListener(mTextWatcher); 156 } 157 } 158 }; 159 160 private IndividualReplacementTask mIndividualReplacements; 161 162 private Runnable mHandlePendingChips = new Runnable() { 163 164 @Override 165 public void run() { 166 handlePendingChips(); 167 } 168 169 }; 170 171 public RecipientEditTextView(Context context, AttributeSet attrs) { 172 super(context, attrs); 173 if (sSelectedTextColor == -1) { 174 sSelectedTextColor = context.getResources().getColor(android.R.color.white); 175 } 176 mAlternatesPopup = new ListPopupWindow(context); 177 mAddressPopup = new ListPopupWindow(context); 178 mAlternatesListener = new OnItemClickListener() { 179 @Override 180 public void onItemClick(AdapterView<?> adapterView,View view, int position, 181 long rowId) { 182 mAlternatesPopup.setOnItemClickListener(null); 183 replaceChip(mSelectedChip, ((RecipientAlternatesAdapter) adapterView.getAdapter()) 184 .getRecipientEntry(position)); 185 Message delayed = Message.obtain(mHandler, DISMISS); 186 delayed.obj = mAlternatesPopup; 187 mHandler.sendMessageDelayed(delayed, DISMISS_DELAY); 188 clearComposingText(); 189 } 190 }; 191 setSuggestionsEnabled(false); 192 setOnItemClickListener(this); 193 setCustomSelectionActionModeCallback(this); 194 mHandler = new Handler() { 195 @Override 196 public void handleMessage(Message msg) { 197 if (msg.what == DISMISS) { 198 ((ListPopupWindow) msg.obj).dismiss(); 199 return; 200 } 201 super.handleMessage(msg); 202 } 203 }; 204 mTextWatcher = new RecipientTextWatcher(); 205 addTextChangedListener(mTextWatcher); 206 } 207 208 @Override 209 public <T extends ListAdapter & Filterable> void setAdapter(T adapter) { 210 super.setAdapter(adapter); 211 if (adapter == null) { 212 return; 213 } 214 } 215 216 @Override 217 public void onSelectionChanged(int start, int end) { 218 // When selection changes, see if it is inside the chips area. 219 // If so, move the cursor back after the chips again. 220 Spannable span = getSpannable(); 221 int textLength = getText().length(); 222 RecipientChip[] chips = span.getSpans(start, textLength, RecipientChip.class); 223 if (chips != null && chips.length > 0) { 224 if (chips != null && chips.length > 0) { 225 // Grab the last chip and set the cursor to after it. 226 setSelection(Math.min(span.getSpanEnd(chips[chips.length - 1]) + 1, textLength)); 227 } 228 } 229 super.onSelectionChanged(start, end); 230 } 231 232 /** 233 * Convenience method: Append the specified text slice to the TextView's 234 * display buffer, upgrading it to BufferType.EDITABLE if it was 235 * not already editable. Commas are excluded as they are added automatically 236 * by the view. 237 */ 238 @Override 239 public void append(CharSequence text, int start, int end) { 240 // We don't care about watching text changes while appending. 241 if (mTextWatcher != null) { 242 removeTextChangedListener(mTextWatcher); 243 } 244 super.append(text, start, end); 245 if (!TextUtils.isEmpty(text) && TextUtils.getTrimmedLength(text) > 0) { 246 final String displayString = (String) text; 247 int seperatorPos = displayString.indexOf(COMMIT_CHAR_COMMA); 248 if (seperatorPos != 0 && !TextUtils.isEmpty(displayString) 249 && TextUtils.getTrimmedLength(displayString) > 0) { 250 mPendingChipsCount++; 251 mPendingChips.add((String)text); 252 } 253 } 254 // Put a message on the queue to make sure we ALWAYS handle pending chips. 255 if (mPendingChipsCount > 0) { 256 postHandlePendingChips(); 257 } 258 mHandler.post(mAddTextWatcher); 259 } 260 261 @Override 262 public void onFocusChanged(boolean hasFocus, int direction, Rect previous) { 263 if (!hasFocus) { 264 shrink(); 265 } else { 266 expand(); 267 scrollLineIntoView(getLineCount()); 268 } 269 super.onFocusChanged(hasFocus, direction, previous); 270 } 271 272 private void shrink() { 273 if (mSelectedChip != null) { 274 clearSelectedChip(); 275 } else { 276 // Reset any pending chips as they would have been handled 277 // when the field lost focus. 278 if (mPendingChipsCount > 0) { 279 postHandlePendingChips(); 280 } else { 281 Editable editable = getText(); 282 int end = getSelectionEnd(); 283 int start = mTokenizer.findTokenStart(editable, end); 284 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 285 if ((chips == null || chips.length == 0)) { 286 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 287 // In the middle of chip; treat this as an edit 288 // and commit the whole token. 289 if (whatEnd != getSelectionEnd()) { 290 handleEdit(start, whatEnd); 291 } else { 292 commitChip(start, end, editable); 293 } 294 } 295 } 296 mHandler.post(mAddTextWatcher); 297 } 298 createMoreChip(); 299 } 300 301 private void expand() { 302 removeMoreChip(); 303 setCursorVisible(true); 304 Editable text = getText(); 305 setSelection(text != null && text.length() > 0 ? text.length() : 0); 306 // If there are any temporary chips, try replacing them now that the user 307 // has expanded the field. 308 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0) { 309 new RecipientReplacementTask().execute(); 310 mTemporaryRecipients = null; 311 } 312 } 313 314 private CharSequence ellipsizeText(CharSequence text, TextPaint paint, float maxWidth) { 315 paint.setTextSize(mChipFontSize); 316 if (maxWidth <= 0 && Log.isLoggable(TAG, Log.DEBUG)) { 317 Log.d(TAG, "Max width is negative: " + maxWidth); 318 } 319 return TextUtils.ellipsize(text, paint, maxWidth, 320 TextUtils.TruncateAt.END); 321 } 322 323 private Bitmap createSelectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 324 // Ellipsize the text so that it takes AT MOST the entire width of the 325 // autocomplete text entry area. Make sure to leave space for padding 326 // on the sides. 327 int height = (int) mChipHeight; 328 int deleteWidth = height; 329 CharSequence ellipsizedText = ellipsizeText(contact.getDisplayName(), paint, 330 calculateAvailableWidth(true) - deleteWidth); 331 332 // Make sure there is a minimum chip width so the user can ALWAYS 333 // tap a chip without difficulty. 334 int width = Math.max(deleteWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 335 ellipsizedText.length())) 336 + (mChipPadding * 2) + deleteWidth); 337 338 // Create the background of the chip. 339 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 340 Canvas canvas = new Canvas(tmpBitmap); 341 if (mChipBackgroundPressed != null) { 342 mChipBackgroundPressed.setBounds(0, 0, width, height); 343 mChipBackgroundPressed.draw(canvas); 344 paint.setColor(sSelectedTextColor); 345 // Align the display text with where the user enters text. 346 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, height 347 - Math.abs(height - mChipFontSize)/2, paint); 348 // Make the delete a square. 349 mChipDelete.setBounds(width - deleteWidth, 0, width, height); 350 mChipDelete.draw(canvas); 351 } else { 352 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 353 } 354 return tmpBitmap; 355 } 356 357 358 /** 359 * Get the background drawable for a RecipientChip. 360 */ 361 public Drawable getChipBackground(RecipientEntry contact) { 362 return (mValidator != null && mValidator.isValid(contact.getDestination())) ? 363 mChipBackground : mInvalidChipBackground; 364 } 365 366 private Bitmap createUnselectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 367 // Ellipsize the text so that it takes AT MOST the entire width of the 368 // autocomplete text entry area. Make sure to leave space for padding 369 // on the sides. 370 int height = (int) mChipHeight; 371 int iconWidth = height; 372 String displayText = 373 !TextUtils.isEmpty(contact.getDisplayName()) ? contact.getDisplayName() : 374 !TextUtils.isEmpty(contact.getDestination()) ? contact.getDestination() : ""; 375 CharSequence ellipsizedText = ellipsizeText(displayText, paint, 376 calculateAvailableWidth(false) - iconWidth); 377 // Make sure there is a minimum chip width so the user can ALWAYS 378 // tap a chip without difficulty. 379 int width = Math.max(iconWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 380 ellipsizedText.length())) 381 + (mChipPadding * 2) + iconWidth); 382 383 // Create the background of the chip. 384 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 385 Canvas canvas = new Canvas(tmpBitmap); 386 Drawable background = getChipBackground(contact); 387 if (background != null) { 388 background.setBounds(0, 0, width, height); 389 background.draw(canvas); 390 391 // Don't draw photos for recipients that have been typed in. 392 if (contact.getContactId() != RecipientEntry.INVALID_CONTACT) { 393 byte[] photoBytes = contact.getPhotoBytes(); 394 // There may not be a photo yet if anything but the first contact address 395 // was selected. 396 if (photoBytes == null && contact.getPhotoThumbnailUri() != null) { 397 // TODO: cache this in the recipient entry? 398 ((BaseRecipientAdapter) getAdapter()).fetchPhoto(contact, contact 399 .getPhotoThumbnailUri()); 400 photoBytes = contact.getPhotoBytes(); 401 } 402 403 Bitmap photo; 404 if (photoBytes != null) { 405 photo = BitmapFactory.decodeByteArray(photoBytes, 0, photoBytes.length); 406 } else { 407 // TODO: can the scaled down default photo be cached? 408 photo = mDefaultContactPhoto; 409 } 410 // Draw the photo on the left side. 411 Matrix matrix = new Matrix(); 412 RectF src = new RectF(0, 0, photo.getWidth(), photo.getHeight()); 413 RectF dst = new RectF(width - iconWidth, 0, width, height); 414 matrix.setRectToRect(src, dst, Matrix.ScaleToFit.CENTER); 415 canvas.drawBitmap(photo, matrix, paint); 416 } else { 417 // Don't leave any space for the icon. It isn't being drawn. 418 iconWidth = 0; 419 } 420 421 // Align the display text with where the user enters text. 422 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 423 height - Math.abs(height - mChipFontSize) / 2, paint); 424 } else { 425 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 426 } 427 return tmpBitmap; 428 } 429 430 public RecipientChip constructChipSpan(RecipientEntry contact, int offset, boolean pressed) 431 throws NullPointerException { 432 if (mChipBackground == null) { 433 throw new NullPointerException( 434 "Unable to render any chips as setChipDimensions was not called."); 435 } 436 Layout layout = getLayout(); 437 438 TextPaint paint = getPaint(); 439 float defaultSize = paint.getTextSize(); 440 int defaultColor = paint.getColor(); 441 442 Bitmap tmpBitmap; 443 if (pressed) { 444 tmpBitmap = createSelectedChip(contact, paint, layout); 445 446 } else { 447 tmpBitmap = createUnselectedChip(contact, paint, layout); 448 } 449 450 // Pass the full text, un-ellipsized, to the chip. 451 Drawable result = new BitmapDrawable(getResources(), tmpBitmap); 452 result.setBounds(0, 0, tmpBitmap.getWidth(), tmpBitmap.getHeight()); 453 RecipientChip recipientChip = new RecipientChip(result, contact, offset); 454 // Return text to the original size. 455 paint.setTextSize(defaultSize); 456 paint.setColor(defaultColor); 457 return recipientChip; 458 } 459 460 /** 461 * Calculate the bottom of the line the chip will be located on using: 462 * 1) which line the chip appears on 463 * 2) the height of a chip 464 * 3) padding built into the edit text view 465 */ 466 private int calculateOffsetFromBottom(int line) { 467 // Line offsets start at zero. 468 int actualLine = getLineCount() - (line + 1); 469 return -((actualLine * ((int)mChipHeight) + getPaddingBottom()) + getPaddingTop()); 470 } 471 472 /** 473 * Get the max amount of space a chip can take up. The formula takes into 474 * account the width of the EditTextView, any view padding, and padding 475 * that will be added to the chip. 476 */ 477 private float calculateAvailableWidth(boolean pressed) { 478 return getWidth() - getPaddingLeft() - getPaddingRight() - (mChipPadding * 2); 479 } 480 481 /** 482 * Set all chip dimensions and resources. This has to be done from the 483 * application as this is a static library. 484 * @param chipBackground 485 * @param chipBackgroundPressed 486 * @param invalidChip 487 * @param chipDelete 488 * @param defaultContact 489 * @param moreResource 490 * @param alternatesLayout 491 * @param chipHeight 492 * @param padding Padding around the text in a chip 493 */ 494 public void setChipDimensions(Drawable chipBackground, Drawable chipBackgroundPressed, 495 Drawable invalidChip, Drawable chipDelete, Bitmap defaultContact, int moreResource, 496 int alternatesLayout, float chipHeight, float padding, 497 float chipFontSize) { 498 mChipBackground = chipBackground; 499 mChipBackgroundPressed = chipBackgroundPressed; 500 mChipDelete = chipDelete; 501 mChipPadding = (int) padding; 502 mAlternatesLayout = alternatesLayout; 503 mDefaultContactPhoto = defaultContact; 504 mMoreItem = (TextView) LayoutInflater.from(getContext()).inflate(moreResource, null); 505 mChipHeight = chipHeight; 506 mChipFontSize = chipFontSize; 507 mInvalidChipBackground = invalidChip; 508 } 509 510 @Override 511 public void onSizeChanged(int width, int height, int oldw, int oldh) { 512 super.onSizeChanged(width, height, oldw, oldh); 513 if (width != 0 && height != 0 && mPendingChipsCount > 0) { 514 postHandlePendingChips(); 515 } 516 // Try to find the scroll view parent, if it exists. 517 if (mScrollView == null && !mTried) { 518 ViewParent parent = getParent(); 519 while (parent != null && !(parent instanceof ScrollView)) { 520 parent = parent.getParent(); 521 } 522 if (parent != null) { 523 mScrollView = (ScrollView) parent; 524 } 525 mTried = true; 526 } 527 } 528 529 private void postHandlePendingChips() { 530 mHandler.removeCallbacks(mHandlePendingChips); 531 mHandler.post(mHandlePendingChips); 532 } 533 534 private void handlePendingChips() { 535 if (mPendingChipsCount <= 0) { 536 return; 537 } 538 if (getWidth() <= 0) { 539 // The widget has not been sized yet. 540 // This will be called as a result of onSizeChanged 541 // at a later point. 542 return; 543 } 544 synchronized (mPendingChips) { 545 mTemporaryRecipients = new ArrayList<RecipientChip>(mPendingChipsCount); 546 Editable editable = getText(); 547 // Tokenize! 548 for (int i = 0; i < mPendingChips.size(); i++) { 549 String current = mPendingChips.get(i); 550 int tokenStart = editable.toString().indexOf(current); 551 int tokenEnd = tokenStart + current.length(); 552 if (tokenStart >= 0) { 553 // When we have a valid token, include it with the token 554 // to the left. 555 if (tokenEnd < editable.length() - 2 556 && editable.charAt(tokenEnd) == COMMIT_CHAR_COMMA) { 557 tokenEnd++; 558 } 559 createReplacementChip(tokenStart, tokenEnd, editable); 560 } 561 mPendingChipsCount--; 562 } 563 sanitizeSpannable(); 564 if (mTemporaryRecipients != null 565 && mTemporaryRecipients.size() <= RecipientAlternatesAdapter.MAX_LOOKUPS) { 566 if (hasFocus() || mTemporaryRecipients.size() < CHIP_LIMIT) { 567 new RecipientReplacementTask().execute(); 568 mTemporaryRecipients = null; 569 } else { 570 // Create the "more" chip 571 mIndividualReplacements = new IndividualReplacementTask(); 572 mIndividualReplacements.execute(new ArrayList<RecipientChip>( 573 mTemporaryRecipients.subList(0, CHIP_LIMIT))); 574 575 createMoreChip(); 576 } 577 } else { 578 // There are too many recipients to look up, so just fall back 579 // to 580 // showing addresses for all of them. 581 mTemporaryRecipients = null; 582 createMoreChip(); 583 } 584 mPendingChipsCount = 0; 585 mPendingChips.clear(); 586 } 587 } 588 589 /** 590 * Remove any characters after the last valid chip. 591 */ 592 private void sanitizeSpannable() { 593 // Find the last chip; eliminate any commit characters after it. 594 RecipientChip[] chips = getRecipients(); 595 if (chips != null && chips.length > 0) { 596 int end; 597 ImageSpan lastSpan; 598 if (mMoreChip != null) { 599 lastSpan = mMoreChip; 600 } else { 601 lastSpan = chips[chips.length - 1]; 602 } 603 end = getSpannable().getSpanEnd(lastSpan); 604 Editable editable = getText(); 605 int length = editable.length(); 606 if (length > end) { 607 // See what characters occur after that and eliminate them. 608 if (Log.isLoggable(TAG, Log.DEBUG)) { 609 Log.d(TAG, "There were extra characters after the last tokenizable entry." 610 + editable); 611 } 612 editable.delete(end + 1, length); 613 } 614 } 615 } 616 617 /** 618 * Create a chip that represents just the email address of a recipient. At some later 619 * point, this chip will be attached to a real contact entry, if one exists. 620 */ 621 private void createReplacementChip(int tokenStart, int tokenEnd, Editable editable) { 622 if (alreadyHasChip(tokenStart, tokenEnd)) { 623 // There is already a chip present at this location. 624 // Don't recreate it. 625 return; 626 } 627 String token = editable.toString().substring(tokenStart, tokenEnd); 628 int commitCharIndex = token.trim().lastIndexOf(COMMIT_CHAR_COMMA); 629 if (commitCharIndex == token.length() - 1) { 630 token = token.substring(0, token.length() - 1); 631 } 632 RecipientEntry entry = createTokenizedEntry(token); 633 if (entry != null) { 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 } 656 657 private RecipientEntry createTokenizedEntry(String token) { 658 if (TextUtils.isEmpty(token)) { 659 return null; 660 } 661 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(token); 662 String display = null; 663 if (isValid(token) && tokens != null && tokens.length > 0) { 664 display = tokens[0].getName(); 665 if (!TextUtils.isEmpty(display)) { 666 return RecipientEntry.constructGeneratedEntry(display, token); 667 } 668 display = tokens[0].getAddress(); 669 if (!TextUtils.isEmpty(display)) { 670 return RecipientEntry.constructGeneratedEntry(display, token); 671 } 672 } 673 // Unable to validate the token or to create a valid token from it. 674 // Just create a chip the user can edit. 675 if (mValidator != null && !mValidator.isValid(token)) { 676 // Try fixing up the entry using the validator. 677 token = mValidator.fixText(token).toString(); 678 if (!TextUtils.isEmpty(token)) { 679 // protect against the case of a validator with a null domain, 680 // which doesn't add a domain to the token 681 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(token); 682 if (tokenized.length > 0) { 683 token = tokenized[0].getAddress(); 684 } 685 } 686 } 687 return RecipientEntry.constructFakeEntry(token); 688 } 689 690 private boolean isValid(String text) { 691 return mValidator == null ? true : mValidator.isValid(text); 692 } 693 694 private String tokenizeAddress(String destination) { 695 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(destination); 696 if (tokens != null && tokens.length > 0) { 697 return tokens[0].getAddress(); 698 } 699 return destination; 700 } 701 702 @Override 703 public void setTokenizer(Tokenizer tokenizer) { 704 mTokenizer = tokenizer; 705 super.setTokenizer(mTokenizer); 706 } 707 708 @Override 709 public void setValidator(Validator validator) { 710 mValidator = validator; 711 super.setValidator(validator); 712 } 713 714 /** 715 * We cannot use the default mechanism for replaceText. Instead, 716 * we override onItemClickListener so we can get all the associated 717 * contact information including display text, address, and id. 718 */ 719 @Override 720 protected void replaceText(CharSequence text) { 721 return; 722 } 723 724 /** 725 * Dismiss any selected chips when the back key is pressed. 726 */ 727 @Override 728 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 729 if (keyCode == KeyEvent.KEYCODE_BACK) { 730 clearSelectedChip(); 731 } 732 return super.onKeyPreIme(keyCode, event); 733 } 734 735 /** 736 * Monitor key presses in this view to see if the user types 737 * any commit keys, which consist of ENTER, TAB, or DPAD_CENTER. 738 * If the user has entered text that has contact matches and types 739 * a commit key, create a chip from the topmost matching contact. 740 * If the user has entered text that has no contact matches and types 741 * a commit key, then create a chip from the text they have entered. 742 */ 743 @Override 744 public boolean onKeyUp(int keyCode, KeyEvent event) { 745 switch (keyCode) { 746 case KeyEvent.KEYCODE_ENTER: 747 case KeyEvent.KEYCODE_DPAD_CENTER: 748 if (event.hasNoModifiers()) { 749 if (commitDefault()) { 750 return true; 751 } 752 if (mSelectedChip != null) { 753 clearSelectedChip(); 754 return true; 755 } else if (focusNext()) { 756 return true; 757 } 758 } 759 break; 760 case KeyEvent.KEYCODE_TAB: 761 if (event.hasNoModifiers()) { 762 if (mSelectedChip != null) { 763 clearSelectedChip(); 764 } else { 765 commitDefault(); 766 } 767 if (focusNext()) { 768 return true; 769 } 770 } 771 } 772 return super.onKeyUp(keyCode, event); 773 } 774 775 private boolean focusNext() { 776 View next = focusSearch(View.FOCUS_DOWN); 777 if (next != null) { 778 next.requestFocus(); 779 return true; 780 } 781 return false; 782 } 783 784 /** 785 * Create a chip from the default selection. If the popup is showing, the 786 * default is the first item in the popup suggestions list. Otherwise, it is 787 * whatever the user had typed in. End represents where the the tokenizer 788 * should search for a token to turn into a chip. 789 * @return If a chip was created from a real contact. 790 */ 791 private boolean commitDefault() { 792 Editable editable = getText(); 793 int end = getSelectionEnd(); 794 int start = mTokenizer.findTokenStart(editable, end); 795 796 if (shouldCreateChip(start, end)) { 797 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 798 // In the middle of chip; treat this as an edit 799 // and commit the whole token. 800 if (whatEnd != getSelectionEnd()) { 801 handleEdit(start, whatEnd); 802 return true; 803 } 804 return commitChip(start, end , editable); 805 } 806 return false; 807 } 808 809 private void commitByCharacter() { 810 Editable editable = getText(); 811 int end = getSelectionEnd(); 812 int start = mTokenizer.findTokenStart(editable, end); 813 if (shouldCreateChip(start, end)) { 814 commitChip(start, end, editable); 815 } 816 setSelection(getText().length()); 817 } 818 819 private boolean commitChip(int start, int end, Editable editable) { 820 if (getAdapter().getCount() > 0 && enoughToFilter()) { 821 // choose the first entry. 822 submitItemAtPosition(0); 823 dismissDropDown(); 824 return true; 825 } else { 826 int tokenEnd = mTokenizer.findTokenEnd(editable, start); 827 String text = editable.toString().substring(start, tokenEnd).trim(); 828 clearComposingText(); 829 if (text != null && text.length() > 0 && !text.equals(" ")) { 830 RecipientEntry entry = createTokenizedEntry(text); 831 if (entry != null) { 832 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 833 CharSequence chipText = createChip(entry, false); 834 editable.replace(start, end, chipText); 835 } 836 dismissDropDown(); 837 return true; 838 } 839 } 840 return false; 841 } 842 843 private boolean shouldCreateChip(int start, int end) { 844 return hasFocus() && enoughToFilter() && !alreadyHasChip(start, end); 845 } 846 847 private boolean alreadyHasChip(int start, int end) { 848 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 849 if ((chips == null || chips.length == 0)) { 850 return false; 851 } 852 return true; 853 } 854 855 private void handleEdit(int start, int end) { 856 // This is in the middle of a chip, so select out the whole chip 857 // and commit it. 858 Editable editable = getText(); 859 setSelection(end); 860 String text = getText().toString().substring(start, end); 861 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 862 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 863 CharSequence chipText = createChip(entry, false); 864 editable.replace(start, getSelectionEnd(), chipText); 865 dismissDropDown(); 866 } 867 868 /** 869 * If there is a selected chip, delegate the key events 870 * to the selected chip. 871 */ 872 @Override 873 public boolean onKeyDown(int keyCode, KeyEvent event) { 874 if (mSelectedChip != null && keyCode == KeyEvent.KEYCODE_DEL) { 875 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 876 mAlternatesPopup.dismiss(); 877 } 878 removeChip(mSelectedChip); 879 } 880 881 if (keyCode == KeyEvent.KEYCODE_ENTER && event.hasNoModifiers()) { 882 return true; 883 } 884 885 return super.onKeyDown(keyCode, event); 886 } 887 888 private Spannable getSpannable() { 889 return getText(); 890 } 891 892 private int getChipStart(RecipientChip chip) { 893 return getSpannable().getSpanStart(chip); 894 } 895 896 private int getChipEnd(RecipientChip chip) { 897 return getSpannable().getSpanEnd(chip); 898 } 899 900 /** 901 * Instead of filtering on the entire contents of the edit box, 902 * this subclass method filters on the range from 903 * {@link Tokenizer#findTokenStart} to {@link #getSelectionEnd} 904 * if the length of that range meets or exceeds {@link #getThreshold} 905 * and makes sure that the range is not already a Chip. 906 */ 907 @Override 908 protected void performFiltering(CharSequence text, int keyCode) { 909 if (enoughToFilter()) { 910 int end = getSelectionEnd(); 911 int start = mTokenizer.findTokenStart(text, end); 912 // If this is a RecipientChip, don't filter 913 // on its contents. 914 Spannable span = getSpannable(); 915 RecipientChip[] chips = span.getSpans(start, end, RecipientChip.class); 916 if (chips != null && chips.length > 0) { 917 return; 918 } 919 } 920 super.performFiltering(text, keyCode); 921 } 922 923 private void clearSelectedChip() { 924 if (mSelectedChip != null) { 925 unselectChip(mSelectedChip); 926 mSelectedChip = null; 927 } 928 setCursorVisible(true); 929 } 930 931 /** 932 * Monitor touch events in the RecipientEditTextView. 933 * If the view does not have focus, any tap on the view 934 * will just focus the view. If the view has focus, determine 935 * if the touch target is a recipient chip. If it is and the chip 936 * is not selected, select it and clear any other selected chips. 937 * If it isn't, then select that chip. 938 */ 939 @Override 940 public boolean onTouchEvent(MotionEvent event) { 941 if (!isFocused()) { 942 // Ignore any chip taps until this view is focused. 943 return super.onTouchEvent(event); 944 } 945 946 boolean handled = super.onTouchEvent(event); 947 int action = event.getAction(); 948 boolean chipWasSelected = false; 949 950 if (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_DOWN) { 951 float x = event.getX(); 952 float y = event.getY(); 953 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 954 RecipientChip currentChip = findChip(offset); 955 if (currentChip != null) { 956 if (action == MotionEvent.ACTION_UP) { 957 if (mSelectedChip != null && mSelectedChip != currentChip) { 958 clearSelectedChip(); 959 mSelectedChip = selectChip(currentChip); 960 } else if (mSelectedChip == null) { 961 // Selection may have moved due to the tap event, 962 // but make sure we correctly reset selection to the 963 // end so that any unfinished chips are committed. 964 setSelection(getText().length()); 965 commitDefault(); 966 mSelectedChip = selectChip(currentChip); 967 } else { 968 onClick(mSelectedChip, offset, x, y); 969 } 970 } 971 chipWasSelected = true; 972 handled = true; 973 } 974 } 975 if (action == MotionEvent.ACTION_UP && !chipWasSelected) { 976 clearSelectedChip(); 977 } 978 return handled; 979 } 980 981 private void scrollLineIntoView(int line) { 982 if (mScrollView != null) { 983 mScrollView.scrollBy(0, calculateOffsetFromBottom(line)); 984 } 985 } 986 987 private void showAlternates(RecipientChip currentChip, ListPopupWindow alternatesPopup, 988 int width, Context context) { 989 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 990 int bottom = calculateOffsetFromBottom(line); 991 // Align the alternates popup with the left side of the View, 992 // regardless of the position of the chip tapped. 993 alternatesPopup.setWidth(width); 994 alternatesPopup.setAnchorView(this); 995 alternatesPopup.setVerticalOffset(bottom); 996 alternatesPopup.setAdapter(createAlternatesAdapter(currentChip)); 997 alternatesPopup.setOnItemClickListener(mAlternatesListener); 998 alternatesPopup.show(); 999 ListView listView = alternatesPopup.getListView(); 1000 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1001 // Checked item would be -1 if the adapter has not 1002 // loaded the view that should be checked yet. The 1003 // variable will be set correctly when onCheckedItemChanged 1004 // is called in a separate thread. 1005 if (mCheckedItem != -1) { 1006 listView.setItemChecked(mCheckedItem, true); 1007 mCheckedItem = -1; 1008 } 1009 } 1010 1011 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 1012 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 1013 mAlternatesLayout, this); 1014 } 1015 1016 private ListAdapter createSingleAddressAdapter(RecipientChip currentChip) { 1017 return new SingleRecipientArrayAdapter(getContext(), mAlternatesLayout, currentChip 1018 .getEntry()); 1019 } 1020 1021 @Override 1022 public void onCheckedItemChanged(int position) { 1023 ListView listView = mAlternatesPopup.getListView(); 1024 if (listView != null && listView.getCheckedItemCount() == 0) { 1025 listView.setItemChecked(position, true); 1026 } else { 1027 mCheckedItem = position; 1028 } 1029 } 1030 1031 // TODO: This algorithm will need a lot of tweaking after more people have used 1032 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 1033 // what comes before the finger. 1034 private int putOffsetInRange(int o) { 1035 int offset = o; 1036 Editable text = getText(); 1037 int length = text.length(); 1038 // Remove whitespace from end to find "real end" 1039 int realLength = length; 1040 for (int i = length - 1; i >= 0; i--) { 1041 if (text.charAt(i) == ' ') { 1042 realLength--; 1043 } else { 1044 break; 1045 } 1046 } 1047 1048 // If the offset is beyond or at the end of the text, 1049 // leave it alone. 1050 if (offset >= realLength) { 1051 return offset; 1052 } 1053 Editable editable = getText(); 1054 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 1055 // Keep walking backward! 1056 offset--; 1057 } 1058 return offset; 1059 } 1060 1061 private int findText(Editable text, int offset) { 1062 if (text.charAt(offset) != ' ') { 1063 return offset; 1064 } 1065 return -1; 1066 } 1067 1068 private RecipientChip findChip(int offset) { 1069 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1070 // Find the chip that contains this offset. 1071 for (int i = 0; i < chips.length; i++) { 1072 RecipientChip chip = chips[i]; 1073 int start = getChipStart(chip); 1074 int end = getChipEnd(chip); 1075 if (offset >= start && offset <= end) { 1076 return chip; 1077 } 1078 } 1079 return null; 1080 } 1081 1082 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 1083 String displayText = entry.getDestination(); 1084 displayText = (String) mTokenizer.terminateToken(displayText); 1085 // Always leave a blank space at the end of a chip. 1086 int textLength = displayText.length()-1; 1087 SpannableString chipText = new SpannableString(displayText); 1088 int end = getSelectionEnd(); 1089 int start = mTokenizer.findTokenStart(getText(), end); 1090 try { 1091 chipText.setSpan(constructChipSpan(entry, start, pressed), 0, textLength, 1092 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1093 } catch (NullPointerException e) { 1094 Log.e(TAG, e.getMessage(), e); 1095 return null; 1096 } 1097 1098 return chipText; 1099 } 1100 1101 /** 1102 * When an item in the suggestions list has been clicked, create a chip from the 1103 * contact information of the selected item. 1104 */ 1105 @Override 1106 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1107 submitItemAtPosition(position); 1108 } 1109 1110 private void submitItemAtPosition(int position) { 1111 RecipientEntry entry = createValidatedEntry( 1112 (RecipientEntry)getAdapter().getItem(position)); 1113 if (entry == null) { 1114 return; 1115 } 1116 clearComposingText(); 1117 1118 int end = getSelectionEnd(); 1119 int start = mTokenizer.findTokenStart(getText(), end); 1120 1121 Editable editable = getText(); 1122 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1123 CharSequence chip = createChip(entry, false); 1124 if (chip != null) { 1125 editable.replace(start, end, chip); 1126 } 1127 } 1128 1129 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1130 if (item == null) { 1131 return null; 1132 } 1133 final RecipientEntry entry; 1134 // If the display name and the address are the same, or if this is a 1135 // valid contact, but the destination is invalid, then make this a fake 1136 // recipient that is editable. 1137 String destination = item.getDestination(); 1138 if (TextUtils.isEmpty(item.getDisplayName()) 1139 || TextUtils.equals(item.getDisplayName(), destination) 1140 || (mValidator != null && !mValidator.isValid(destination))) { 1141 entry = RecipientEntry.constructFakeEntry(destination); 1142 } else { 1143 entry = item; 1144 } 1145 return entry; 1146 } 1147 1148 /** Returns a collection of contact Id for each chip inside this View. */ 1149 /* package */ Collection<Long> getContactIds() { 1150 final Set<Long> result = new HashSet<Long>(); 1151 RecipientChip[] chips = getRecipients(); 1152 if (chips != null) { 1153 for (RecipientChip chip : chips) { 1154 result.add(chip.getContactId()); 1155 } 1156 } 1157 return result; 1158 } 1159 1160 private RecipientChip[] getRecipients() { 1161 return getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1162 } 1163 1164 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1165 /* package */ Collection<Long> getDataIds() { 1166 final Set<Long> result = new HashSet<Long>(); 1167 RecipientChip [] chips = getRecipients(); 1168 if (chips != null) { 1169 for (RecipientChip chip : chips) { 1170 result.add(chip.getDataId()); 1171 } 1172 } 1173 return result; 1174 } 1175 1176 1177 @Override 1178 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1179 return false; 1180 } 1181 1182 @Override 1183 public void onDestroyActionMode(ActionMode mode) { 1184 } 1185 1186 @Override 1187 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1188 return false; 1189 } 1190 1191 /** 1192 * No chips are selectable. 1193 */ 1194 @Override 1195 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1196 return false; 1197 } 1198 1199 /** 1200 * Create the more chip. The more chip is text that replaces any chips that 1201 * do not fit in the pre-defined available space when the 1202 * RecipientEditTextView loses focus. 1203 */ 1204 private void createMoreChip() { 1205 RecipientChip[] recipients = getRecipients(); 1206 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1207 mMoreChip = null; 1208 return; 1209 } 1210 int numRecipients = recipients.length; 1211 int overage = numRecipients - CHIP_LIMIT; 1212 Editable text = getText(); 1213 String moreText = String.format(mMoreItem.getText().toString(), overage); 1214 TextPaint morePaint = new TextPaint(getPaint()); 1215 morePaint.setTextSize(mMoreItem.getTextSize()); 1216 morePaint.setColor(mMoreItem.getCurrentTextColor()); 1217 int width = (int)morePaint.measureText(moreText) + mMoreItem.getPaddingLeft() 1218 + mMoreItem.getPaddingRight(); 1219 int height = getLineHeight(); 1220 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1221 Canvas canvas = new Canvas(drawable); 1222 canvas.drawText(moreText, 0, moreText.length(), 0, height - getLayout().getLineDescent(0), 1223 morePaint); 1224 1225 Drawable result = new BitmapDrawable(getResources(), drawable); 1226 result.setBounds(0, 0, width, height); 1227 ImageSpan moreSpan = new ImageSpan(result); 1228 Spannable spannable = getSpannable(); 1229 // Remove the overage chips. 1230 if (recipients == null || recipients.length == 0) { 1231 Log.w(TAG, 1232 "We have recipients. Tt should not be possible to have zero RecipientChips."); 1233 mMoreChip = null; 1234 return; 1235 } 1236 mRemovedSpans = new ArrayList<RecipientChip>(); 1237 int totalReplaceStart = 0; 1238 int totalReplaceEnd = 0; 1239 for (int i = numRecipients - overage; i < recipients.length; i++) { 1240 mRemovedSpans.add(recipients[i]); 1241 if (i == numRecipients - overage) { 1242 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1243 } 1244 if (i == recipients.length - 1) { 1245 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1246 } 1247 if (mTemporaryRecipients != null && !mTemporaryRecipients.contains(recipients[i])) { 1248 recipients[i].storeChipStart(spannable.getSpanStart(recipients[i])); 1249 recipients[i].storeChipEnd(spannable.getSpanEnd(recipients[i])); 1250 } 1251 spannable.removeSpan(recipients[i]); 1252 } 1253 // TODO: why would these ever be backwards? 1254 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1255 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1256 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1257 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1258 text.replace(start, end, chipText); 1259 mMoreChip = moreSpan; 1260 } 1261 1262 /** 1263 * Replace the more chip, if it exists, with all of the recipient chips it had 1264 * replaced when the RecipientEditTextView gains focus. 1265 */ 1266 private void removeMoreChip() { 1267 if (mMoreChip != null) { 1268 Spannable span = getSpannable(); 1269 span.removeSpan(mMoreChip); 1270 mMoreChip = null; 1271 // Re-add the spans that were removed. 1272 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1273 // Recreate each removed span. 1274 Editable editable = getText(); 1275 for (RecipientChip chip : mRemovedSpans) { 1276 int chipStart = chip.getStoredChipStart(); 1277 int chipEnd; 1278 String token; 1279 if (chipStart == -1) { 1280 // Need to find the location of the chip, again. 1281 token = (String)mTokenizer.terminateToken(chip.getEntry().getDestination()); 1282 chipStart = editable.toString().indexOf(token); 1283 // -1 for the space! 1284 chipEnd = chipStart + token.length() - 1; 1285 } else { 1286 chipEnd = Math.min(editable.length(), chip.getStoredChipEnd()); 1287 } 1288 if (Log.isLoggable(TAG, Log.DEBUG) && chipEnd != chip.getStoredChipEnd()) { 1289 Log.d(TAG, 1290 "Unexpectedly, the chip ended after the end of the editable text. " 1291 + "Chip End " + chip.getStoredChipEnd() 1292 + "Editable length " + editable.length()); 1293 } 1294 // Only set the span if we found a matching token. 1295 if (chipStart != -1) { 1296 editable.setSpan(chip, chipStart, chipEnd, 1297 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1298 } 1299 } 1300 mRemovedSpans.clear(); 1301 } 1302 } 1303 } 1304 1305 /** 1306 * Show specified chip as selected. If the RecipientChip is just an email address, 1307 * selecting the chip will take the contents of the chip and place it at 1308 * the end of the RecipientEditTextView for inline editing. If the 1309 * RecipientChip is a complete contact, then selecting the chip 1310 * will change the background color of the chip, show the delete icon, 1311 * and a popup window with the address in use highlighted and any other 1312 * alternate addresses for the contact. 1313 * @param currentChip Chip to select. 1314 * @return A RecipientChip in the selected state or null if the chip 1315 * just contained an email address. 1316 */ 1317 public RecipientChip selectChip(RecipientChip currentChip) { 1318 if (currentChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1319 CharSequence text = currentChip.getValue(); 1320 Editable editable = getText(); 1321 removeChip(currentChip); 1322 editable.append(text); 1323 setCursorVisible(true); 1324 setSelection(editable.length()); 1325 return null; 1326 } else if (currentChip.getContactId() == RecipientEntry.GENERATED_CONTACT) { 1327 int start = getChipStart(currentChip); 1328 int end = getChipEnd(currentChip); 1329 getSpannable().removeSpan(currentChip); 1330 RecipientChip newChip; 1331 try { 1332 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1333 } catch (NullPointerException e) { 1334 Log.e(TAG, e.getMessage(), e); 1335 return null; 1336 } 1337 Editable editable = getText(); 1338 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1339 if (start == -1 || end == -1) { 1340 Log.d(TAG, "The chip being selected no longer exists but should."); 1341 } else { 1342 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1343 } 1344 newChip.setSelected(true); 1345 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1346 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1347 } 1348 showAddress(newChip, mAddressPopup, getWidth(), getContext()); 1349 setCursorVisible(false); 1350 return newChip; 1351 } else { 1352 int start = getChipStart(currentChip); 1353 int end = getChipEnd(currentChip); 1354 getSpannable().removeSpan(currentChip); 1355 RecipientChip newChip; 1356 try { 1357 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1358 } catch (NullPointerException e) { 1359 Log.e(TAG, e.getMessage(), e); 1360 return null; 1361 } 1362 Editable editable = getText(); 1363 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1364 if (start == -1 || end == -1) { 1365 Log.d(TAG, "The chip being selected no longer exists but should."); 1366 } else { 1367 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1368 } 1369 newChip.setSelected(true); 1370 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1371 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1372 } 1373 showAlternates(newChip, mAlternatesPopup, getWidth(), getContext()); 1374 setCursorVisible(false); 1375 return newChip; 1376 } 1377 } 1378 1379 1380 private void showAddress(final RecipientChip currentChip, final ListPopupWindow popup, 1381 int width, Context context) { 1382 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1383 int bottom = calculateOffsetFromBottom(line); 1384 // Align the alternates popup with the left side of the View, 1385 // regardless of the position of the chip tapped. 1386 popup.setWidth(width); 1387 popup.setAnchorView(this); 1388 popup.setVerticalOffset(bottom); 1389 popup.setAdapter(createSingleAddressAdapter(currentChip)); 1390 popup.setOnItemClickListener(new OnItemClickListener() { 1391 @Override 1392 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1393 unselectChip(currentChip); 1394 popup.dismiss(); 1395 } 1396 }); 1397 popup.show(); 1398 ListView listView = popup.getListView(); 1399 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1400 listView.setItemChecked(0, true); 1401 } 1402 1403 /** 1404 * Remove selection from this chip. Unselecting a RecipientChip will render 1405 * the chip without a delete icon and with an unfocused background. This 1406 * is called when the RecipientChip no longer has focus. 1407 */ 1408 public void unselectChip(RecipientChip chip) { 1409 int start = getChipStart(chip); 1410 int end = getChipEnd(chip); 1411 Editable editable = getText(); 1412 mSelectedChip = null; 1413 if (start == -1 || end == -1) { 1414 Log.e(TAG, "The chip being unselected no longer exists but should."); 1415 } else { 1416 getSpannable().removeSpan(chip); 1417 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1418 editable.removeSpan(chip); 1419 try { 1420 editable.setSpan(constructChipSpan(chip.getEntry(), start, false), start, end, 1421 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1422 } catch (NullPointerException e) { 1423 Log.e(TAG, e.getMessage(), e); 1424 } 1425 } 1426 setCursorVisible(true); 1427 setSelection(editable.length()); 1428 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1429 mAlternatesPopup.dismiss(); 1430 } 1431 } 1432 1433 1434 /** 1435 * Return whether this chip contains the position passed in. 1436 */ 1437 public boolean matchesChip(RecipientChip chip, int offset) { 1438 int start = getChipStart(chip); 1439 int end = getChipEnd(chip); 1440 if (start == -1 || end == -1) { 1441 return false; 1442 } 1443 return (offset >= start && offset <= end); 1444 } 1445 1446 1447 /** 1448 * Return whether a touch event was inside the delete target of 1449 * a selected chip. It is in the delete target if: 1450 * 1) the x and y points of the event are within the 1451 * delete assset. 1452 * 2) the point tapped would have caused a cursor to appear 1453 * right after the selected chip. 1454 * @return boolean 1455 */ 1456 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1457 // Figure out the bounds of this chip and whether or not 1458 // the user clicked in the X portion. 1459 return chip.isSelected() && offset == getChipEnd(chip); 1460 } 1461 1462 /** 1463 * Remove the chip and any text associated with it from the RecipientEditTextView. 1464 */ 1465 private void removeChip(RecipientChip chip) { 1466 Spannable spannable = getSpannable(); 1467 int spanStart = spannable.getSpanStart(chip); 1468 int spanEnd = spannable.getSpanEnd(chip); 1469 Editable text = getText(); 1470 int toDelete = spanEnd; 1471 boolean wasSelected = chip == mSelectedChip; 1472 // Clear that there is a selected chip before updating any text. 1473 if (wasSelected) { 1474 mSelectedChip = null; 1475 } 1476 // Always remove trailing spaces when removing a chip. 1477 while (toDelete >= 0 && toDelete < text.length() && text.charAt(toDelete) == ' ') { 1478 toDelete++; 1479 } 1480 spannable.removeSpan(chip); 1481 text.delete(spanStart, toDelete); 1482 if (wasSelected) { 1483 clearSelectedChip(); 1484 } 1485 } 1486 1487 /** 1488 * Replace this currently selected chip with a new chip 1489 * that uses the contact data provided. 1490 */ 1491 public void replaceChip(RecipientChip chip, RecipientEntry entry) { 1492 boolean wasSelected = chip == mSelectedChip; 1493 if (wasSelected) { 1494 mSelectedChip = null; 1495 } 1496 int start = getChipStart(chip); 1497 int end = getChipEnd(chip); 1498 getSpannable().removeSpan(chip); 1499 Editable editable = getText(); 1500 CharSequence chipText = createChip(entry, false); 1501 if (start == -1 || end == -1) { 1502 Log.e(TAG, "The chip to replace does not exist but should."); 1503 editable.insert(0, chipText); 1504 } else { 1505 // There may be a space to replace with this chip's new associated 1506 // space. Check for it. 1507 int toReplace = end; 1508 while (toReplace >= 0 && toReplace < editable.length() 1509 && editable.charAt(toReplace) == ' ') { 1510 toReplace++; 1511 } 1512 editable.replace(start, toReplace, chipText); 1513 } 1514 setCursorVisible(true); 1515 if (wasSelected) { 1516 clearSelectedChip(); 1517 } 1518 } 1519 1520 /** 1521 * Handle click events for a chip. When a selected chip receives a click 1522 * event, see if that event was in the delete icon. If so, delete it. 1523 * Otherwise, unselect the chip. 1524 */ 1525 public void onClick(RecipientChip chip, int offset, float x, float y) { 1526 if (chip.isSelected()) { 1527 if (isInDelete(chip, offset, x, y)) { 1528 removeChip(chip); 1529 } else { 1530 clearSelectedChip(); 1531 } 1532 } 1533 } 1534 1535 private boolean chipsPending() { 1536 return mPendingChipsCount > 0 || (mRemovedSpans != null && mRemovedSpans.size() > 0); 1537 } 1538 1539 @Override 1540 public void removeTextChangedListener(TextWatcher watcher) { 1541 mTextWatcher = null; 1542 super.removeTextChangedListener(watcher); 1543 } 1544 1545 private class RecipientTextWatcher implements TextWatcher { 1546 @Override 1547 public void afterTextChanged(Editable s) { 1548 // If the text has been set to null or empty, make sure we remove 1549 // all the spans we applied. 1550 if (TextUtils.isEmpty(s)) { 1551 // Remove all the chips spans. 1552 Spannable spannable = getSpannable(); 1553 RecipientChip[] chips = spannable.getSpans(0, getText().length(), 1554 RecipientChip.class); 1555 for (RecipientChip chip : chips) { 1556 spannable.removeSpan(chip); 1557 } 1558 if (mMoreChip != null) { 1559 spannable.removeSpan(mMoreChip); 1560 } 1561 return; 1562 } 1563 // Get whether there are any recipients pending addition to the 1564 // view. If there are, don't do anything in the text watcher. 1565 if (chipsPending()) { 1566 return; 1567 } 1568 if (mSelectedChip != null) { 1569 setCursorVisible(true); 1570 setSelection(getText().length()); 1571 clearSelectedChip(); 1572 } 1573 int length = s.length(); 1574 // Make sure there is content there to parse and that it is 1575 // not just the commit character. 1576 if (length > 1) { 1577 char last; 1578 int end = getSelectionEnd() == 0 ? 0 : getSelectionEnd() - 1; 1579 int len = length() - 1; 1580 if (end != len) { 1581 last = s.charAt(end); 1582 } else { 1583 last = s.charAt(len); 1584 } 1585 if (last == COMMIT_CHAR_SEMICOLON || last == COMMIT_CHAR_COMMA) { 1586 commitByCharacter(); 1587 } else if (last == COMMIT_CHAR_SPACE) { 1588 // Check if this is a valid email address. If it is, 1589 // commit it. 1590 String text = getText().toString(); 1591 int tokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 1592 String sub = text.substring(tokenStart, mTokenizer.findTokenEnd(text, 1593 tokenStart)); 1594 if (mValidator != null && mValidator.isValid(sub)) { 1595 commitByCharacter(); 1596 } 1597 } 1598 } 1599 } 1600 1601 @Override 1602 public void onTextChanged(CharSequence s, int start, int before, int count) { 1603 // Do nothing. 1604 } 1605 1606 @Override 1607 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 1608 } 1609 } 1610 1611 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 1612 private RecipientChip createFreeChip(RecipientEntry entry) { 1613 String displayText = entry.getDestination(); 1614 displayText = (String) mTokenizer.terminateToken(displayText); 1615 try { 1616 return constructChipSpan(entry, -1, false); 1617 } catch (NullPointerException e) { 1618 Log.e(TAG, e.getMessage(), e); 1619 return null; 1620 } 1621 } 1622 1623 @Override 1624 protected Void doInBackground(Void... params) { 1625 if (mIndividualReplacements != null) { 1626 mIndividualReplacements.cancel(true); 1627 } 1628 // For each chip in the list, look up the matching contact. 1629 // If there is a match, replace that chip with the matching 1630 // chip. 1631 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 1632 RecipientChip[] existingChips = getSpannable().getSpans(0, getText().length(), 1633 RecipientChip.class); 1634 for (int i = 0; i < existingChips.length; i++) { 1635 originalRecipients.add(existingChips[i]); 1636 } 1637 if (mRemovedSpans != null) { 1638 originalRecipients.addAll(mRemovedSpans); 1639 } 1640 String[] addresses = new String[originalRecipients.size()]; 1641 for (int i = 0; i < originalRecipients.size(); i++) { 1642 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1643 } 1644 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1645 .getMatchingRecipients(getContext(), addresses); 1646 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 1647 for (final RecipientChip temp : originalRecipients) { 1648 RecipientEntry entry = null; 1649 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1650 && getSpannable().getSpanStart(temp) != -1) { 1651 // Replace this. 1652 entry = createValidatedEntry(entries.get(tokenizeAddress(temp.getEntry() 1653 .getDestination()))); 1654 } 1655 if (entry != null) { 1656 replacements.add(createFreeChip(entry)); 1657 } else { 1658 replacements.add(temp); 1659 } 1660 } 1661 if (replacements != null && replacements.size() > 0) { 1662 mHandler.post(new Runnable() { 1663 @Override 1664 public void run() { 1665 SpannableStringBuilder text = new SpannableStringBuilder(getText() 1666 .toString()); 1667 Editable oldText = getText(); 1668 int start, end; 1669 int i = 0; 1670 for (RecipientChip chip : originalRecipients) { 1671 start = oldText.getSpanStart(chip); 1672 if (start != -1) { 1673 end = oldText.getSpanEnd(chip); 1674 text.removeSpan(chip); 1675 // Leave a spot for the space! 1676 text.setSpan(replacements.get(i), start, end, 1677 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1678 } 1679 i++; 1680 } 1681 Editable editable = getText(); 1682 editable.clear(); 1683 editable.insert(0, text); 1684 originalRecipients.clear(); 1685 } 1686 }); 1687 } 1688 return null; 1689 } 1690 } 1691 1692 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 1693 @SuppressWarnings("unchecked") 1694 @Override 1695 protected Void doInBackground(Object... params) { 1696 // For each chip in the list, look up the matching contact. 1697 // If there is a match, replace that chip with the matching 1698 // chip. 1699 final ArrayList<RecipientChip> originalRecipients = 1700 (ArrayList<RecipientChip>) params[0]; 1701 String[] addresses = new String[originalRecipients.size()]; 1702 for (int i = 0; i < originalRecipients.size(); i++) { 1703 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1704 } 1705 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1706 .getMatchingRecipients(getContext(), addresses); 1707 for (final RecipientChip temp : originalRecipients) { 1708 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1709 && getSpannable().getSpanStart(temp) != -1) { 1710 // Replace this. 1711 final RecipientEntry entry = createValidatedEntry(entries 1712 .get(tokenizeAddress(temp.getEntry().getDestination()))); 1713 if (entry != null) { 1714 mHandler.post(new Runnable() { 1715 @Override 1716 public void run() { 1717 replaceChip(temp, entry); 1718 } 1719 }); 1720 } 1721 } 1722 } 1723 return null; 1724 } 1725 } 1726} 1727