RecipientEditTextView.java revision 750e6e52d9e560d5fbf687f15bf388a947e98eb2
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 mHandler.post(mAddTextWatcher); 169 } 170 171 }; 172 173 public RecipientEditTextView(Context context, AttributeSet attrs) { 174 super(context, attrs); 175 if (sSelectedTextColor == -1) { 176 sSelectedTextColor = context.getResources().getColor(android.R.color.white); 177 } 178 mAlternatesPopup = new ListPopupWindow(context); 179 mAddressPopup = new ListPopupWindow(context); 180 mAlternatesListener = new OnItemClickListener() { 181 @Override 182 public void onItemClick(AdapterView<?> adapterView,View view, int position, 183 long rowId) { 184 mAlternatesPopup.setOnItemClickListener(null); 185 replaceChip(mSelectedChip, ((RecipientAlternatesAdapter) adapterView.getAdapter()) 186 .getRecipientEntry(position)); 187 Message delayed = Message.obtain(mHandler, DISMISS); 188 delayed.obj = mAlternatesPopup; 189 mHandler.sendMessageDelayed(delayed, DISMISS_DELAY); 190 clearComposingText(); 191 } 192 }; 193 setSuggestionsEnabled(false); 194 setOnItemClickListener(this); 195 setCustomSelectionActionModeCallback(this); 196 mHandler = new Handler() { 197 @Override 198 public void handleMessage(Message msg) { 199 if (msg.what == DISMISS) { 200 ((ListPopupWindow) msg.obj).dismiss(); 201 return; 202 } 203 super.handleMessage(msg); 204 } 205 }; 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 } 259 260 @Override 261 public void onFocusChanged(boolean hasFocus, int direction, Rect previous) { 262 if (!hasFocus) { 263 shrink(); 264 } else { 265 expand(); 266 scrollLineIntoView(getLineCount()); 267 } 268 super.onFocusChanged(hasFocus, direction, previous); 269 } 270 271 private void shrink() { 272 if (mSelectedChip != null) { 273 clearSelectedChip(); 274 } else { 275 // Reset any pending chips as they would have been handled 276 // when the field lost focus. 277 if (mPendingChipsCount > 0) { 278 postHandlePendingChips(); 279 } else { 280 Editable editable = getText(); 281 int end = getSelectionEnd(); 282 int start = mTokenizer.findTokenStart(editable, end); 283 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 284 if ((chips == null || chips.length == 0)) { 285 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 286 // In the middle of chip; treat this as an edit 287 // and commit the whole token. 288 if (whatEnd != getSelectionEnd()) { 289 handleEdit(start, whatEnd); 290 } else { 291 commitChip(start, end, editable); 292 } 293 } 294 } 295 mHandler.post(mAddTextWatcher); 296 } 297 createMoreChip(); 298 } 299 300 private void expand() { 301 removeMoreChip(); 302 setCursorVisible(true); 303 Editable text = getText(); 304 setSelection(text != null && text.length() > 0 ? text.length() : 0); 305 // If there are any temporary chips, try replacing them now that the user 306 // has expanded the field. 307 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0) { 308 new RecipientReplacementTask().execute(); 309 mTemporaryRecipients = null; 310 } 311 } 312 313 private CharSequence ellipsizeText(CharSequence text, TextPaint paint, float maxWidth) { 314 paint.setTextSize(mChipFontSize); 315 if (maxWidth <= 0 && Log.isLoggable(TAG, Log.DEBUG)) { 316 Log.d(TAG, "Max width is negative: " + maxWidth); 317 } 318 return TextUtils.ellipsize(text, paint, maxWidth, 319 TextUtils.TruncateAt.END); 320 } 321 322 private Bitmap createSelectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 323 // Ellipsize the text so that it takes AT MOST the entire width of the 324 // autocomplete text entry area. Make sure to leave space for padding 325 // on the sides. 326 int height = (int) mChipHeight; 327 int deleteWidth = height; 328 CharSequence ellipsizedText = ellipsizeText(contact.getDisplayName(), paint, 329 calculateAvailableWidth(true) - deleteWidth); 330 331 // Make sure there is a minimum chip width so the user can ALWAYS 332 // tap a chip without difficulty. 333 int width = Math.max(deleteWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 334 ellipsizedText.length())) 335 + (mChipPadding * 2) + deleteWidth); 336 337 // Create the background of the chip. 338 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 339 Canvas canvas = new Canvas(tmpBitmap); 340 if (mChipBackgroundPressed != null) { 341 mChipBackgroundPressed.setBounds(0, 0, width, height); 342 mChipBackgroundPressed.draw(canvas); 343 paint.setColor(sSelectedTextColor); 344 // Align the display text with where the user enters text. 345 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, height 346 - Math.abs(height - mChipFontSize)/2, paint); 347 // Make the delete a square. 348 mChipDelete.setBounds(width - deleteWidth, 0, width, height); 349 mChipDelete.draw(canvas); 350 } else { 351 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 352 } 353 return tmpBitmap; 354 } 355 356 357 /** 358 * Get the background drawable for a RecipientChip. 359 */ 360 public Drawable getChipBackground(RecipientEntry contact) { 361 return (mValidator != null && mValidator.isValid(contact.getDestination())) ? 362 mChipBackground : mInvalidChipBackground; 363 } 364 365 private Bitmap createUnselectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 366 // Ellipsize the text so that it takes AT MOST the entire width of the 367 // autocomplete text entry area. Make sure to leave space for padding 368 // on the sides. 369 int height = (int) mChipHeight; 370 int iconWidth = height; 371 CharSequence ellipsizedText = ellipsizeText(contact.getDisplayName(), paint, 372 calculateAvailableWidth(false) - iconWidth); 373 // Make sure there is a minimum chip width so the user can ALWAYS 374 // tap a chip without difficulty. 375 int width = Math.max(iconWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 376 ellipsizedText.length())) 377 + (mChipPadding * 2) + iconWidth); 378 379 // Create the background of the chip. 380 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 381 Canvas canvas = new Canvas(tmpBitmap); 382 Drawable background = getChipBackground(contact); 383 if (background != null) { 384 background.setBounds(0, 0, width, height); 385 background.draw(canvas); 386 387 // Don't draw photos for recipients that have been typed in. 388 if (contact.getContactId() != RecipientEntry.INVALID_CONTACT) { 389 byte[] photoBytes = contact.getPhotoBytes(); 390 // There may not be a photo yet if anything but the first contact address 391 // was selected. 392 if (photoBytes == null && contact.getPhotoThumbnailUri() != null) { 393 // TODO: cache this in the recipient entry? 394 ((BaseRecipientAdapter) getAdapter()).fetchPhoto(contact, contact 395 .getPhotoThumbnailUri()); 396 photoBytes = contact.getPhotoBytes(); 397 } 398 399 Bitmap photo; 400 if (photoBytes != null) { 401 photo = BitmapFactory.decodeByteArray(photoBytes, 0, photoBytes.length); 402 } else { 403 // TODO: can the scaled down default photo be cached? 404 photo = mDefaultContactPhoto; 405 } 406 // Draw the photo on the left side. 407 Matrix matrix = new Matrix(); 408 RectF src = new RectF(0, 0, photo.getWidth(), photo.getHeight()); 409 RectF dst = new RectF(width - iconWidth, 0, width, height); 410 matrix.setRectToRect(src, dst, Matrix.ScaleToFit.CENTER); 411 canvas.drawBitmap(photo, matrix, paint); 412 } else { 413 // Don't leave any space for the icon. It isn't being drawn. 414 iconWidth = 0; 415 } 416 417 // Align the display text with where the user enters text. 418 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 419 height - Math.abs(height - mChipFontSize) / 2, paint); 420 } else { 421 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 422 } 423 return tmpBitmap; 424 } 425 426 public RecipientChip constructChipSpan(RecipientEntry contact, int offset, boolean pressed) 427 throws NullPointerException { 428 if (mChipBackground == null) { 429 throw new NullPointerException( 430 "Unable to render any chips as setChipDimensions was not called."); 431 } 432 Layout layout = getLayout(); 433 434 TextPaint paint = getPaint(); 435 float defaultSize = paint.getTextSize(); 436 int defaultColor = paint.getColor(); 437 438 Bitmap tmpBitmap; 439 if (pressed) { 440 tmpBitmap = createSelectedChip(contact, paint, layout); 441 442 } else { 443 tmpBitmap = createUnselectedChip(contact, paint, layout); 444 } 445 446 // Pass the full text, un-ellipsized, to the chip. 447 Drawable result = new BitmapDrawable(getResources(), tmpBitmap); 448 result.setBounds(0, 0, tmpBitmap.getWidth(), tmpBitmap.getHeight()); 449 RecipientChip recipientChip = new RecipientChip(result, contact, offset); 450 // Return text to the original size. 451 paint.setTextSize(defaultSize); 452 paint.setColor(defaultColor); 453 return recipientChip; 454 } 455 456 /** 457 * Calculate the bottom of the line the chip will be located on using: 458 * 1) which line the chip appears on 459 * 2) the height of a chip 460 * 3) padding built into the edit text view 461 */ 462 private int calculateOffsetFromBottom(int line) { 463 // Line offsets start at zero. 464 int actualLine = getLineCount() - (line + 1); 465 return -((actualLine * ((int)mChipHeight) + getPaddingBottom()) + getPaddingTop()); 466 } 467 468 /** 469 * Get the max amount of space a chip can take up. The formula takes into 470 * account the width of the EditTextView, any view padding, and padding 471 * that will be added to the chip. 472 */ 473 private float calculateAvailableWidth(boolean pressed) { 474 return getWidth() - getPaddingLeft() - getPaddingRight() - (mChipPadding * 2); 475 } 476 477 /** 478 * Set all chip dimensions and resources. This has to be done from the 479 * application as this is a static library. 480 * @param chipBackground 481 * @param chipBackgroundPressed 482 * @param invalidChip 483 * @param chipDelete 484 * @param defaultContact 485 * @param moreResource 486 * @param alternatesLayout 487 * @param chipHeight 488 * @param padding Padding around the text in a chip 489 */ 490 public void setChipDimensions(Drawable chipBackground, Drawable chipBackgroundPressed, 491 Drawable invalidChip, Drawable chipDelete, Bitmap defaultContact, int moreResource, 492 int alternatesLayout, float chipHeight, float padding, 493 float chipFontSize) { 494 mChipBackground = chipBackground; 495 mChipBackgroundPressed = chipBackgroundPressed; 496 mChipDelete = chipDelete; 497 mChipPadding = (int) padding; 498 mAlternatesLayout = alternatesLayout; 499 mDefaultContactPhoto = defaultContact; 500 mMoreItem = (TextView) LayoutInflater.from(getContext()).inflate(moreResource, null); 501 mChipHeight = chipHeight; 502 mChipFontSize = chipFontSize; 503 mInvalidChipBackground = invalidChip; 504 } 505 506 @Override 507 public void onSizeChanged(int width, int height, int oldw, int oldh) { 508 super.onSizeChanged(width, height, oldw, oldh); 509 if (width != 0 && height != 0 && mPendingChipsCount > 0) { 510 postHandlePendingChips(); 511 } 512 // Try to find the scroll view parent, if it exists. 513 if (mScrollView == null && !mTried) { 514 ViewParent parent = getParent(); 515 while (parent != null && !(parent instanceof ScrollView)) { 516 parent = parent.getParent(); 517 } 518 if (parent != null) { 519 mScrollView = (ScrollView) parent; 520 } 521 mTried = true; 522 } 523 } 524 525 private void postHandlePendingChips() { 526 mHandler.removeCallbacks(mHandlePendingChips); 527 mHandler.post(mHandlePendingChips); 528 } 529 530 private void handlePendingChips() { 531 if (mPendingChipsCount <= 0) { 532 return; 533 } 534 if (getWidth() <= 0) { 535 // The widget has not been sized yet. 536 // This will be called as a result of onSizeChanged 537 // at a later point. 538 return; 539 } 540 synchronized (mPendingChips) { 541 mTemporaryRecipients = new ArrayList<RecipientChip>(mPendingChipsCount); 542 Editable editable = getText(); 543 // Tokenize! 544 for (int i = 0; i < mPendingChips.size(); i++) { 545 String current = mPendingChips.get(i); 546 int tokenStart = editable.toString().indexOf(current); 547 int tokenEnd = tokenStart + current.length(); 548 if (tokenStart >= 0) { 549 // When we have a valid token, include it with the token 550 // to the left. 551 if (tokenEnd < editable.length() - 2 552 && editable.charAt(tokenEnd) == COMMIT_CHAR_COMMA) { 553 tokenEnd++; 554 } 555 createReplacementChip(tokenStart, tokenEnd, editable); 556 } 557 mPendingChipsCount--; 558 } 559 sanitizeSpannable(); 560 if (mTemporaryRecipients != null 561 && mTemporaryRecipients.size() <= RecipientAlternatesAdapter.MAX_LOOKUPS) { 562 if (hasFocus() || mTemporaryRecipients.size() < CHIP_LIMIT) { 563 new RecipientReplacementTask().execute(); 564 mTemporaryRecipients = null; 565 } else { 566 // Create the "more" chip 567 mIndividualReplacements = new IndividualReplacementTask(); 568 mIndividualReplacements.execute(new ArrayList<RecipientChip>( 569 mTemporaryRecipients.subList(0, CHIP_LIMIT))); 570 571 createMoreChip(); 572 } 573 } else { 574 // There are too many recipients to look up, so just fall back 575 // to 576 // showing addresses for all of them. 577 mTemporaryRecipients = null; 578 createMoreChip(); 579 } 580 mPendingChipsCount = 0; 581 mPendingChips.clear(); 582 } 583 } 584 585 /** 586 * Remove any characters after the last valid chip. 587 */ 588 private void sanitizeSpannable() { 589 // Find the last chip; eliminate any commit characters after it. 590 RecipientChip[] chips = getRecipients(); 591 if (chips != null && chips.length > 0) { 592 int end; 593 ImageSpan lastSpan; 594 if (mMoreChip != null) { 595 lastSpan = mMoreChip; 596 } else { 597 lastSpan = chips[chips.length - 1]; 598 } 599 end = getSpannable().getSpanEnd(lastSpan); 600 Editable editable = getText(); 601 int length = editable.length(); 602 if (length > end) { 603 // See what characters occur after that and eliminate them. 604 if (Log.isLoggable(TAG, Log.DEBUG)) { 605 Log.d(TAG, "There were extra characters after the last tokenizable entry." 606 + editable); 607 } 608 editable.delete(end + 1, length); 609 } 610 } 611 } 612 613 /** 614 * Create a chip that represents just the email address of a recipient. At some later 615 * point, this chip will be attached to a real contact entry, if one exists. 616 */ 617 private void createReplacementChip(int tokenStart, int tokenEnd, Editable editable) { 618 if (alreadyHasChip(tokenStart, tokenEnd)) { 619 // There is already a chip present at this location. 620 // Don't recreate it. 621 return; 622 } 623 String token = editable.toString().substring(tokenStart, tokenEnd); 624 int commitCharIndex = token.trim().lastIndexOf(COMMIT_CHAR_COMMA); 625 if (commitCharIndex == token.length() - 1) { 626 token = token.substring(0, token.length() - 1); 627 } 628 RecipientEntry entry = createTokenizedEntry(token); 629 String destText = entry.getDestination(); 630 destText = (String) mTokenizer.terminateToken(destText); 631 // Always leave a blank space at the end of a chip. 632 int textLength = destText.length() - 1; 633 SpannableString chipText = new SpannableString(destText); 634 int end = getSelectionEnd(); 635 int start = mTokenizer.findTokenStart(getText(), end); 636 RecipientChip chip = null; 637 try { 638 chip = constructChipSpan(entry, start, false); 639 chipText.setSpan(chip, 0, textLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 640 } catch (NullPointerException e) { 641 Log.e(TAG, e.getMessage(), e); 642 } 643 644 editable.replace(tokenStart, tokenEnd, chipText); 645 // Add this chip to the list of entries "to replace" 646 if (chip != null) { 647 mTemporaryRecipients.add(chip); 648 } 649 } 650 651 private RecipientEntry createTokenizedEntry(String token) { 652 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(token); 653 String display = null; 654 if (tokens != null && tokens.length > 0) { 655 display = tokens[0].getName(); 656 if (!TextUtils.isEmpty(display)) { 657 return RecipientEntry.constructGeneratedEntry(display, token); 658 } 659 display = tokens[0].getAddress(); 660 if (!TextUtils.isEmpty(display)) { 661 return RecipientEntry.constructGeneratedEntry(display, token); 662 } 663 } 664 return RecipientEntry.constructFakeEntry(token); 665 } 666 667 private String tokenizeAddress(String destination) { 668 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(destination); 669 if (tokens != null && tokens.length > 0) { 670 return tokens[0].getAddress(); 671 } 672 return destination; 673 } 674 675 @Override 676 public void setTokenizer(Tokenizer tokenizer) { 677 mTokenizer = tokenizer; 678 super.setTokenizer(mTokenizer); 679 } 680 681 @Override 682 public void setValidator(Validator validator) { 683 mValidator = validator; 684 super.setValidator(validator); 685 } 686 687 /** 688 * We cannot use the default mechanism for replaceText. Instead, 689 * we override onItemClickListener so we can get all the associated 690 * contact information including display text, address, and id. 691 */ 692 @Override 693 protected void replaceText(CharSequence text) { 694 return; 695 } 696 697 /** 698 * Dismiss any selected chips when the back key is pressed. 699 */ 700 @Override 701 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 702 if (keyCode == KeyEvent.KEYCODE_BACK) { 703 clearSelectedChip(); 704 } 705 return super.onKeyPreIme(keyCode, event); 706 } 707 708 /** 709 * Monitor key presses in this view to see if the user types 710 * any commit keys, which consist of ENTER, TAB, or DPAD_CENTER. 711 * If the user has entered text that has contact matches and types 712 * a commit key, create a chip from the topmost matching contact. 713 * If the user has entered text that has no contact matches and types 714 * a commit key, then create a chip from the text they have entered. 715 */ 716 @Override 717 public boolean onKeyUp(int keyCode, KeyEvent event) { 718 switch (keyCode) { 719 case KeyEvent.KEYCODE_ENTER: 720 case KeyEvent.KEYCODE_DPAD_CENTER: 721 if (event.hasNoModifiers()) { 722 if (commitDefault()) { 723 return true; 724 } 725 if (mSelectedChip != null) { 726 clearSelectedChip(); 727 return true; 728 } else if (focusNext()) { 729 return true; 730 } 731 } 732 break; 733 case KeyEvent.KEYCODE_TAB: 734 if (event.hasNoModifiers()) { 735 if (mSelectedChip != null) { 736 clearSelectedChip(); 737 } else { 738 commitDefault(); 739 } 740 if (focusNext()) { 741 return true; 742 } 743 } 744 } 745 return super.onKeyUp(keyCode, event); 746 } 747 748 private boolean focusNext() { 749 View next = focusSearch(View.FOCUS_DOWN); 750 if (next != null) { 751 next.requestFocus(); 752 return true; 753 } 754 return false; 755 } 756 757 /** 758 * Create a chip from the default selection. If the popup is showing, the 759 * default is the first item in the popup suggestions list. Otherwise, it is 760 * whatever the user had typed in. End represents where the the tokenizer 761 * should search for a token to turn into a chip. 762 * @return If a chip was created from a real contact. 763 */ 764 private boolean commitDefault() { 765 Editable editable = getText(); 766 int end = getSelectionEnd(); 767 int start = mTokenizer.findTokenStart(editable, end); 768 769 if (shouldCreateChip(start, end)) { 770 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 771 // In the middle of chip; treat this as an edit 772 // and commit the whole token. 773 if (whatEnd != getSelectionEnd()) { 774 handleEdit(start, whatEnd); 775 return true; 776 } 777 return commitChip(start, end , editable); 778 } 779 return false; 780 } 781 782 private void commitByCharacter() { 783 Editable editable = getText(); 784 int end = getSelectionEnd(); 785 int start = mTokenizer.findTokenStart(editable, end); 786 if (shouldCreateChip(start, end)) { 787 commitChip(start, end, editable); 788 } 789 setSelection(getText().length()); 790 } 791 792 private boolean commitChip(int start, int end, Editable editable) { 793 if (getAdapter().getCount() > 0 && enoughToFilter()) { 794 // choose the first entry. 795 submitItemAtPosition(0); 796 dismissDropDown(); 797 return true; 798 } else { 799 int tokenEnd = mTokenizer.findTokenEnd(editable, start); 800 String text = editable.toString().substring(start, tokenEnd).trim(); 801 clearComposingText(); 802 if (text != null && text.length() > 0 && !text.equals(" ")) { 803 RecipientEntry entry = createTokenizedEntry(text); 804 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 805 CharSequence chipText = createChip(entry, false); 806 editable.replace(start, end, chipText); 807 dismissDropDown(); 808 return true; 809 } 810 } 811 return false; 812 } 813 814 private boolean shouldCreateChip(int start, int end) { 815 return hasFocus() && enoughToFilter() && !alreadyHasChip(start, end); 816 } 817 818 private boolean alreadyHasChip(int start, int end) { 819 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 820 if ((chips == null || chips.length == 0)) { 821 return false; 822 } 823 return true; 824 } 825 826 private void handleEdit(int start, int end) { 827 // This is in the middle of a chip, so select out the whole chip 828 // and commit it. 829 Editable editable = getText(); 830 setSelection(end); 831 String text = getText().toString().substring(start, end); 832 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 833 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 834 CharSequence chipText = createChip(entry, false); 835 editable.replace(start, getSelectionEnd(), chipText); 836 dismissDropDown(); 837 } 838 839 /** 840 * If there is a selected chip, delegate the key events 841 * to the selected chip. 842 */ 843 @Override 844 public boolean onKeyDown(int keyCode, KeyEvent event) { 845 if (mSelectedChip != null && keyCode == KeyEvent.KEYCODE_DEL) { 846 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 847 mAlternatesPopup.dismiss(); 848 } 849 removeChip(mSelectedChip); 850 } 851 852 if (keyCode == KeyEvent.KEYCODE_ENTER && event.hasNoModifiers()) { 853 return true; 854 } 855 856 return super.onKeyDown(keyCode, event); 857 } 858 859 private Spannable getSpannable() { 860 return getText(); 861 } 862 863 private int getChipStart(RecipientChip chip) { 864 return getSpannable().getSpanStart(chip); 865 } 866 867 private int getChipEnd(RecipientChip chip) { 868 return getSpannable().getSpanEnd(chip); 869 } 870 871 /** 872 * Instead of filtering on the entire contents of the edit box, 873 * this subclass method filters on the range from 874 * {@link Tokenizer#findTokenStart} to {@link #getSelectionEnd} 875 * if the length of that range meets or exceeds {@link #getThreshold} 876 * and makes sure that the range is not already a Chip. 877 */ 878 @Override 879 protected void performFiltering(CharSequence text, int keyCode) { 880 if (enoughToFilter()) { 881 int end = getSelectionEnd(); 882 int start = mTokenizer.findTokenStart(text, end); 883 // If this is a RecipientChip, don't filter 884 // on its contents. 885 Spannable span = getSpannable(); 886 RecipientChip[] chips = span.getSpans(start, end, RecipientChip.class); 887 if (chips != null && chips.length > 0) { 888 return; 889 } 890 } 891 super.performFiltering(text, keyCode); 892 } 893 894 private void clearSelectedChip() { 895 if (mSelectedChip != null) { 896 unselectChip(mSelectedChip); 897 mSelectedChip = null; 898 } 899 setCursorVisible(true); 900 } 901 902 /** 903 * Monitor touch events in the RecipientEditTextView. 904 * If the view does not have focus, any tap on the view 905 * will just focus the view. If the view has focus, determine 906 * if the touch target is a recipient chip. If it is and the chip 907 * is not selected, select it and clear any other selected chips. 908 * If it isn't, then select that chip. 909 */ 910 @Override 911 public boolean onTouchEvent(MotionEvent event) { 912 if (!isFocused()) { 913 // Ignore any chip taps until this view is focused. 914 return super.onTouchEvent(event); 915 } 916 917 boolean handled = super.onTouchEvent(event); 918 int action = event.getAction(); 919 boolean chipWasSelected = false; 920 921 if (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_DOWN) { 922 float x = event.getX(); 923 float y = event.getY(); 924 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 925 RecipientChip currentChip = findChip(offset); 926 if (currentChip != null) { 927 if (action == MotionEvent.ACTION_UP) { 928 if (mSelectedChip != null && mSelectedChip != currentChip) { 929 clearSelectedChip(); 930 mSelectedChip = selectChip(currentChip); 931 } else if (mSelectedChip == null) { 932 // Selection may have moved due to the tap event, 933 // but make sure we correctly reset selection to the 934 // end so that any unfinished chips are committed. 935 setSelection(getText().length()); 936 commitDefault(); 937 mSelectedChip = selectChip(currentChip); 938 } else { 939 onClick(mSelectedChip, offset, x, y); 940 } 941 } 942 chipWasSelected = true; 943 setCursorVisible(false); 944 handled = true; 945 } 946 } 947 if (action == MotionEvent.ACTION_UP && !chipWasSelected) { 948 clearSelectedChip(); 949 } 950 return handled; 951 } 952 953 private void scrollLineIntoView(int line) { 954 if (mScrollView != null) { 955 mScrollView.scrollBy(0, calculateOffsetFromBottom(line)); 956 } 957 } 958 959 private void showAlternates(RecipientChip currentChip, ListPopupWindow alternatesPopup, 960 int width, Context context) { 961 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 962 int bottom = calculateOffsetFromBottom(line); 963 // Align the alternates popup with the left side of the View, 964 // regardless of the position of the chip tapped. 965 alternatesPopup.setWidth(width); 966 alternatesPopup.setAnchorView(this); 967 alternatesPopup.setVerticalOffset(bottom); 968 alternatesPopup.setAdapter(createAlternatesAdapter(currentChip)); 969 alternatesPopup.setOnItemClickListener(mAlternatesListener); 970 alternatesPopup.show(); 971 ListView listView = alternatesPopup.getListView(); 972 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 973 // Checked item would be -1 if the adapter has not 974 // loaded the view that should be checked yet. The 975 // variable will be set correctly when onCheckedItemChanged 976 // is called in a separate thread. 977 if (mCheckedItem != -1) { 978 listView.setItemChecked(mCheckedItem, true); 979 mCheckedItem = -1; 980 } 981 } 982 983 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 984 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 985 mAlternatesLayout, this); 986 } 987 988 private ListAdapter createSingleAddressAdapter(RecipientChip currentChip) { 989 return new SingleRecipientArrayAdapter(getContext(), mAlternatesLayout, currentChip 990 .getEntry()); 991 } 992 993 public void onCheckedItemChanged(int position) { 994 ListView listView = mAlternatesPopup.getListView(); 995 if (listView != null && listView.getCheckedItemCount() == 0) { 996 listView.setItemChecked(position, true); 997 } else { 998 mCheckedItem = position; 999 } 1000 } 1001 1002 // TODO: This algorithm will need a lot of tweaking after more people have used 1003 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 1004 // what comes before the finger. 1005 private int putOffsetInRange(int o) { 1006 int offset = o; 1007 Editable text = getText(); 1008 int length = text.length(); 1009 // Remove whitespace from end to find "real end" 1010 int realLength = length; 1011 for (int i = length - 1; i >= 0; i--) { 1012 if (text.charAt(i) == ' ') { 1013 realLength--; 1014 } else { 1015 break; 1016 } 1017 } 1018 1019 // If the offset is beyond or at the end of the text, 1020 // leave it alone. 1021 if (offset >= realLength) { 1022 return offset; 1023 } 1024 Editable editable = getText(); 1025 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 1026 // Keep walking backward! 1027 offset--; 1028 } 1029 return offset; 1030 } 1031 1032 private int findText(Editable text, int offset) { 1033 if (text.charAt(offset) != ' ') { 1034 return offset; 1035 } 1036 return -1; 1037 } 1038 1039 private RecipientChip findChip(int offset) { 1040 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1041 // Find the chip that contains this offset. 1042 for (int i = 0; i < chips.length; i++) { 1043 RecipientChip chip = chips[i]; 1044 int start = getChipStart(chip); 1045 int end = getChipEnd(chip); 1046 if (offset >= start && offset <= end) { 1047 return chip; 1048 } 1049 } 1050 return null; 1051 } 1052 1053 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 1054 String displayText = entry.getDestination(); 1055 displayText = (String) mTokenizer.terminateToken(displayText); 1056 // Always leave a blank space at the end of a chip. 1057 int textLength = displayText.length()-1; 1058 SpannableString chipText = new SpannableString(displayText); 1059 int end = getSelectionEnd(); 1060 int start = mTokenizer.findTokenStart(getText(), end); 1061 try { 1062 chipText.setSpan(constructChipSpan(entry, start, pressed), 0, textLength, 1063 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1064 } catch (NullPointerException e) { 1065 Log.e(TAG, e.getMessage(), e); 1066 return null; 1067 } 1068 1069 return chipText; 1070 } 1071 1072 /** 1073 * When an item in the suggestions list has been clicked, create a chip from the 1074 * contact information of the selected item. 1075 */ 1076 @Override 1077 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1078 submitItemAtPosition(position); 1079 } 1080 1081 private void submitItemAtPosition(int position) { 1082 RecipientEntry entry = createValidatedEntry( 1083 (RecipientEntry)getAdapter().getItem(position)); 1084 if (entry == null) { 1085 return; 1086 } 1087 clearComposingText(); 1088 1089 int end = getSelectionEnd(); 1090 int start = mTokenizer.findTokenStart(getText(), end); 1091 1092 Editable editable = getText(); 1093 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1094 editable.replace(start, end, createChip(entry, false)); 1095 } 1096 1097 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1098 if (item == null) { 1099 return null; 1100 } 1101 final RecipientEntry entry; 1102 // If the display name and the address are the same, or if this is a 1103 // valid contact, but the destination is invalid, then make this a fake 1104 // recipient that is editable. 1105 String destination = item.getDestination(); 1106 if (TextUtils.isEmpty(item.getDisplayName()) 1107 || TextUtils.equals(item.getDisplayName(), destination) 1108 || (mValidator != null && !mValidator.isValid(destination))) { 1109 entry = RecipientEntry.constructFakeEntry(destination); 1110 } else { 1111 entry = item; 1112 } 1113 return entry; 1114 } 1115 1116 /** Returns a collection of contact Id for each chip inside this View. */ 1117 /* package */ Collection<Long> getContactIds() { 1118 final Set<Long> result = new HashSet<Long>(); 1119 RecipientChip[] chips = getRecipients(); 1120 if (chips != null) { 1121 for (RecipientChip chip : chips) { 1122 result.add(chip.getContactId()); 1123 } 1124 } 1125 return result; 1126 } 1127 1128 private RecipientChip[] getRecipients() { 1129 return getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1130 } 1131 1132 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1133 /* package */ Collection<Long> getDataIds() { 1134 final Set<Long> result = new HashSet<Long>(); 1135 RecipientChip [] chips = getRecipients(); 1136 if (chips != null) { 1137 for (RecipientChip chip : chips) { 1138 result.add(chip.getDataId()); 1139 } 1140 } 1141 return result; 1142 } 1143 1144 1145 @Override 1146 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1147 return false; 1148 } 1149 1150 @Override 1151 public void onDestroyActionMode(ActionMode mode) { 1152 } 1153 1154 @Override 1155 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1156 return false; 1157 } 1158 1159 /** 1160 * No chips are selectable. 1161 */ 1162 @Override 1163 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1164 return false; 1165 } 1166 1167 /** 1168 * Create the more chip. The more chip is text that replaces any chips that 1169 * do not fit in the pre-defined available space when the 1170 * RecipientEditTextView loses focus. 1171 */ 1172 private void createMoreChip() { 1173 RecipientChip[] recipients = getRecipients(); 1174 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1175 mMoreChip = null; 1176 return; 1177 } 1178 int numRecipients = recipients.length; 1179 int overage = numRecipients - CHIP_LIMIT; 1180 Editable text = getText(); 1181 String moreText = String.format(mMoreItem.getText().toString(), overage); 1182 TextPaint morePaint = new TextPaint(getPaint()); 1183 morePaint.setTextSize(mMoreItem.getTextSize()); 1184 morePaint.setColor(mMoreItem.getCurrentTextColor()); 1185 int width = (int)morePaint.measureText(moreText) + mMoreItem.getPaddingLeft() 1186 + mMoreItem.getPaddingRight(); 1187 int height = getLineHeight(); 1188 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1189 Canvas canvas = new Canvas(drawable); 1190 canvas.drawText(moreText, 0, moreText.length(), 0, height - getLayout().getLineDescent(0), 1191 morePaint); 1192 1193 Drawable result = new BitmapDrawable(getResources(), drawable); 1194 result.setBounds(0, 0, width, height); 1195 ImageSpan moreSpan = new ImageSpan(result); 1196 Spannable spannable = getSpannable(); 1197 // Remove the overage chips. 1198 if (recipients == null || recipients.length == 0) { 1199 Log.w(TAG, 1200 "We have recipients. Tt should not be possible to have zero RecipientChips."); 1201 mMoreChip = null; 1202 return; 1203 } 1204 mRemovedSpans = new ArrayList<RecipientChip>(); 1205 int totalReplaceStart = 0; 1206 int totalReplaceEnd = 0; 1207 for (int i = numRecipients - overage; i < recipients.length; i++) { 1208 mRemovedSpans.add(recipients[i]); 1209 if (i == numRecipients - overage) { 1210 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1211 } 1212 if (i == recipients.length - 1) { 1213 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1214 } 1215 if (mTemporaryRecipients != null && !mTemporaryRecipients.contains(recipients[i])) { 1216 recipients[i].storeChipStart(spannable.getSpanStart(recipients[i])); 1217 recipients[i].storeChipEnd(spannable.getSpanEnd(recipients[i])); 1218 } 1219 spannable.removeSpan(recipients[i]); 1220 } 1221 // TODO: why would these ever be backwards? 1222 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1223 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1224 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1225 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1226 text.replace(start, end, chipText); 1227 mMoreChip = moreSpan; 1228 } 1229 1230 /** 1231 * Replace the more chip, if it exists, with all of the recipient chips it had 1232 * replaced when the RecipientEditTextView gains focus. 1233 */ 1234 private void removeMoreChip() { 1235 if (mMoreChip != null) { 1236 Spannable span = getSpannable(); 1237 span.removeSpan(mMoreChip); 1238 mMoreChip = null; 1239 // Re-add the spans that were removed. 1240 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1241 // Recreate each removed span. 1242 Editable editable = getText(); 1243 for (RecipientChip chip : mRemovedSpans) { 1244 int chipStart = chip.getStoredChipStart(); 1245 int chipEnd; 1246 String token; 1247 if (chipStart == -1) { 1248 // Need to find the location of the chip, again. 1249 token = (String)mTokenizer.terminateToken(chip.getEntry().getDestination()); 1250 chipStart = editable.toString().indexOf(token); 1251 // -1 for the space! 1252 chipEnd = chipStart + token.length() - 1; 1253 } else { 1254 chipEnd = Math.min(editable.length(), chip.getStoredChipEnd()); 1255 } 1256 if (Log.isLoggable(TAG, Log.DEBUG) && chipEnd != chip.getStoredChipEnd()) { 1257 Log.d(TAG, 1258 "Unexpectedly, the chip ended after the end of the editable text. " 1259 + "Chip End " + chip.getStoredChipEnd() 1260 + "Editable length " + editable.length()); 1261 } 1262 // Only set the span if we found a matching token. 1263 if (chipStart != -1) { 1264 editable.setSpan(chip, chipStart, chipEnd, 1265 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1266 } 1267 } 1268 mRemovedSpans.clear(); 1269 } 1270 } 1271 } 1272 1273 /** 1274 * Show specified chip as selected. If the RecipientChip is just an email address, 1275 * selecting the chip will take the contents of the chip and place it at 1276 * the end of the RecipientEditTextView for inline editing. If the 1277 * RecipientChip is a complete contact, then selecting the chip 1278 * will change the background color of the chip, show the delete icon, 1279 * and a popup window with the address in use highlighted and any other 1280 * alternate addresses for the contact. 1281 * @param currentChip Chip to select. 1282 * @return A RecipientChip in the selected state or null if the chip 1283 * just contained an email address. 1284 */ 1285 public RecipientChip selectChip(RecipientChip currentChip) { 1286 if (currentChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1287 CharSequence text = currentChip.getValue(); 1288 Editable editable = getText(); 1289 removeChip(currentChip); 1290 editable.append(text); 1291 setCursorVisible(true); 1292 setSelection(editable.length()); 1293 return null; 1294 } else if (currentChip.getContactId() == RecipientEntry.GENERATED_CONTACT) { 1295 int start = getChipStart(currentChip); 1296 int end = getChipEnd(currentChip); 1297 getSpannable().removeSpan(currentChip); 1298 RecipientChip newChip; 1299 try { 1300 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1301 } catch (NullPointerException e) { 1302 Log.e(TAG, e.getMessage(), e); 1303 return null; 1304 } 1305 Editable editable = getText(); 1306 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1307 if (start == -1 || end == -1) { 1308 Log.d(TAG, "The chip being selected no longer exists but should."); 1309 } else { 1310 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1311 } 1312 newChip.setSelected(true); 1313 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1314 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1315 } 1316 showAddress(newChip, mAddressPopup, getWidth(), getContext()); 1317 return newChip; 1318 } else { 1319 int start = getChipStart(currentChip); 1320 int end = getChipEnd(currentChip); 1321 getSpannable().removeSpan(currentChip); 1322 RecipientChip newChip; 1323 try { 1324 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1325 } catch (NullPointerException e) { 1326 Log.e(TAG, e.getMessage(), e); 1327 return null; 1328 } 1329 Editable editable = getText(); 1330 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1331 if (start == -1 || end == -1) { 1332 Log.d(TAG, "The chip being selected no longer exists but should."); 1333 } else { 1334 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1335 } 1336 newChip.setSelected(true); 1337 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1338 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1339 } 1340 showAlternates(newChip, mAlternatesPopup, getWidth(), getContext()); 1341 return newChip; 1342 } 1343 } 1344 1345 1346 private void showAddress(final RecipientChip currentChip, final ListPopupWindow popup, 1347 int width, Context context) { 1348 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1349 int bottom = calculateOffsetFromBottom(line); 1350 // Align the alternates popup with the left side of the View, 1351 // regardless of the position of the chip tapped. 1352 popup.setWidth(width); 1353 popup.setAnchorView(this); 1354 popup.setVerticalOffset(bottom); 1355 popup.setAdapter(createSingleAddressAdapter(currentChip)); 1356 popup.setOnItemClickListener(new OnItemClickListener() { 1357 @Override 1358 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1359 unselectChip(currentChip); 1360 popup.dismiss(); 1361 } 1362 }); 1363 popup.show(); 1364 ListView listView = popup.getListView(); 1365 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1366 listView.setItemChecked(0, true); 1367 } 1368 1369 /** 1370 * Remove selection from this chip. Unselecting a RecipientChip will render 1371 * the chip without a delete icon and with an unfocused background. This 1372 * is called when the RecipientChip no longer has focus. 1373 */ 1374 public void unselectChip(RecipientChip chip) { 1375 int start = getChipStart(chip); 1376 int end = getChipEnd(chip); 1377 Editable editable = getText(); 1378 mSelectedChip = null; 1379 if (start == -1 || end == -1) { 1380 Log.e(TAG, "The chip being unselected no longer exists but should."); 1381 } else { 1382 getSpannable().removeSpan(chip); 1383 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1384 editable.removeSpan(chip); 1385 try { 1386 editable.setSpan(constructChipSpan(chip.getEntry(), start, false), start, end, 1387 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1388 } catch (NullPointerException e) { 1389 Log.e(TAG, e.getMessage(), e); 1390 } 1391 } 1392 setCursorVisible(true); 1393 setSelection(editable.length()); 1394 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1395 mAlternatesPopup.dismiss(); 1396 } 1397 } 1398 1399 1400 /** 1401 * Return whether this chip contains the position passed in. 1402 */ 1403 public boolean matchesChip(RecipientChip chip, int offset) { 1404 int start = getChipStart(chip); 1405 int end = getChipEnd(chip); 1406 if (start == -1 || end == -1) { 1407 return false; 1408 } 1409 return (offset >= start && offset <= end); 1410 } 1411 1412 1413 /** 1414 * Return whether a touch event was inside the delete target of 1415 * a selected chip. It is in the delete target if: 1416 * 1) the x and y points of the event are within the 1417 * delete assset. 1418 * 2) the point tapped would have caused a cursor to appear 1419 * right after the selected chip. 1420 * @return boolean 1421 */ 1422 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1423 // Figure out the bounds of this chip and whether or not 1424 // the user clicked in the X portion. 1425 return chip.isSelected() && offset == getChipEnd(chip); 1426 } 1427 1428 /** 1429 * Remove the chip and any text associated with it from the RecipientEditTextView. 1430 */ 1431 private void removeChip(RecipientChip chip) { 1432 Spannable spannable = getSpannable(); 1433 int spanStart = spannable.getSpanStart(chip); 1434 int spanEnd = spannable.getSpanEnd(chip); 1435 Editable text = getText(); 1436 int toDelete = spanEnd; 1437 boolean wasSelected = chip == mSelectedChip; 1438 // Clear that there is a selected chip before updating any text. 1439 if (wasSelected) { 1440 mSelectedChip = null; 1441 } 1442 // Always remove trailing spaces when removing a chip. 1443 while (toDelete >= 0 && toDelete < text.length() && text.charAt(toDelete) == ' ') { 1444 toDelete++; 1445 } 1446 spannable.removeSpan(chip); 1447 text.delete(spanStart, toDelete); 1448 if (wasSelected) { 1449 clearSelectedChip(); 1450 } 1451 } 1452 1453 /** 1454 * Replace this currently selected chip with a new chip 1455 * that uses the contact data provided. 1456 */ 1457 public void replaceChip(RecipientChip chip, RecipientEntry entry) { 1458 boolean wasSelected = chip == mSelectedChip; 1459 if (wasSelected) { 1460 mSelectedChip = null; 1461 } 1462 int start = getChipStart(chip); 1463 int end = getChipEnd(chip); 1464 getSpannable().removeSpan(chip); 1465 Editable editable = getText(); 1466 CharSequence chipText = createChip(entry, false); 1467 if (start == -1 || end == -1) { 1468 Log.e(TAG, "The chip to replace does not exist but should."); 1469 editable.insert(0, chipText); 1470 } else { 1471 // There may be a space to replace with this chip's new associated 1472 // space. Check for it. 1473 int toReplace = end; 1474 while (toReplace >= 0 && toReplace < editable.length() 1475 && editable.charAt(toReplace) == ' ') { 1476 toReplace++; 1477 } 1478 editable.replace(start, toReplace, chipText); 1479 } 1480 setCursorVisible(true); 1481 if (wasSelected) { 1482 clearSelectedChip(); 1483 } 1484 } 1485 1486 /** 1487 * Handle click events for a chip. When a selected chip receives a click 1488 * event, see if that event was in the delete icon. If so, delete it. 1489 * Otherwise, unselect the chip. 1490 */ 1491 public void onClick(RecipientChip chip, int offset, float x, float y) { 1492 if (chip.isSelected()) { 1493 if (isInDelete(chip, offset, x, y)) { 1494 removeChip(chip); 1495 } else { 1496 clearSelectedChip(); 1497 } 1498 } 1499 } 1500 1501 private boolean chipsPending() { 1502 return mPendingChipsCount > 0 || (mRemovedSpans != null && mRemovedSpans.size() > 0); 1503 } 1504 1505 private class RecipientTextWatcher implements TextWatcher { 1506 @Override 1507 public void afterTextChanged(Editable s) { 1508 // If the text has been set to null or empty, make sure we remove 1509 // all the spans we applied. 1510 if (TextUtils.isEmpty(s)) { 1511 // Remove all the chips spans. 1512 Spannable spannable = getSpannable(); 1513 RecipientChip[] chips = spannable.getSpans(0, getText().length(), 1514 RecipientChip.class); 1515 for (RecipientChip chip : chips) { 1516 spannable.removeSpan(chip); 1517 } 1518 if (mMoreChip != null) { 1519 spannable.removeSpan(mMoreChip); 1520 } 1521 return; 1522 } 1523 // Get whether there are any recipients pending addition to the 1524 // view. If there are, don't do anything in the text watcher. 1525 if (chipsPending()) { 1526 return; 1527 } 1528 if (mSelectedChip != null) { 1529 setCursorVisible(true); 1530 setSelection(getText().length()); 1531 clearSelectedChip(); 1532 } 1533 int length = s.length(); 1534 // Make sure there is content there to parse and that it is 1535 // not just the commit character. 1536 if (length > 1) { 1537 char last; 1538 int end = getSelectionEnd() == 0 ? 0 : getSelectionEnd() - 1; 1539 int len = length() - 1; 1540 if (end != len) { 1541 last = s.charAt(end); 1542 } else { 1543 last = s.charAt(len); 1544 } 1545 if (last == COMMIT_CHAR_SEMICOLON || last == COMMIT_CHAR_COMMA) { 1546 commitByCharacter(); 1547 } else if (last == COMMIT_CHAR_SPACE) { 1548 // Check if this is a valid email address. If it is, 1549 // commit it. 1550 String text = getText().toString(); 1551 int tokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 1552 String sub = text.substring(tokenStart, mTokenizer.findTokenEnd(text, 1553 tokenStart)); 1554 if (mValidator != null && mValidator.isValid(sub)) { 1555 commitByCharacter(); 1556 } 1557 } 1558 } 1559 } 1560 1561 @Override 1562 public void onTextChanged(CharSequence s, int start, int before, int count) { 1563 // Do nothing. 1564 } 1565 1566 @Override 1567 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 1568 } 1569 } 1570 1571 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 1572 private RecipientChip createFreeChip(RecipientEntry entry) { 1573 String displayText = entry.getDestination(); 1574 displayText = (String) mTokenizer.terminateToken(displayText); 1575 try { 1576 return constructChipSpan(entry, -1, false); 1577 } catch (NullPointerException e) { 1578 Log.e(TAG, e.getMessage(), e); 1579 return null; 1580 } 1581 } 1582 1583 @Override 1584 protected Void doInBackground(Void... params) { 1585 if (mIndividualReplacements != null) { 1586 mIndividualReplacements.cancel(true); 1587 } 1588 // For each chip in the list, look up the matching contact. 1589 // If there is a match, replace that chip with the matching 1590 // chip. 1591 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 1592 RecipientChip[] existingChips = getSpannable().getSpans(0, getText().length(), 1593 RecipientChip.class); 1594 for (int i = 0; i < existingChips.length; i++) { 1595 originalRecipients.add(existingChips[i]); 1596 } 1597 if (mRemovedSpans != null) { 1598 originalRecipients.addAll(mRemovedSpans); 1599 } 1600 String[] addresses = new String[originalRecipients.size()]; 1601 for (int i = 0; i < originalRecipients.size(); i++) { 1602 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1603 } 1604 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1605 .getMatchingRecipients(getContext(), addresses); 1606 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 1607 for (final RecipientChip temp : originalRecipients) { 1608 RecipientEntry entry = null; 1609 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1610 && getSpannable().getSpanStart(temp) != -1) { 1611 // Replace this. 1612 entry = createValidatedEntry(entries.get(tokenizeAddress(temp.getEntry() 1613 .getDestination()))); 1614 } 1615 if (entry != null) { 1616 replacements.add(createFreeChip(entry)); 1617 } else { 1618 replacements.add(temp); 1619 } 1620 } 1621 if (replacements != null && replacements.size() > 0) { 1622 mHandler.post(new Runnable() { 1623 @Override 1624 public void run() { 1625 SpannableStringBuilder text = new SpannableStringBuilder(getText() 1626 .toString()); 1627 Editable oldText = getText(); 1628 int start, end; 1629 int i = 0; 1630 for (RecipientChip chip : originalRecipients) { 1631 start = oldText.getSpanStart(chip); 1632 if (start != -1) { 1633 end = oldText.getSpanEnd(chip); 1634 text.removeSpan(chip); 1635 // Leave a spot for the space! 1636 text.setSpan(replacements.get(i), start, end, 1637 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1638 } 1639 i++; 1640 } 1641 Editable editable = getText(); 1642 editable.clear(); 1643 editable.insert(0, text); 1644 originalRecipients.clear(); 1645 } 1646 }); 1647 } 1648 return null; 1649 } 1650 } 1651 1652 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 1653 @SuppressWarnings("unchecked") 1654 @Override 1655 protected Void doInBackground(Object... params) { 1656 // For each chip in the list, look up the matching contact. 1657 // If there is a match, replace that chip with the matching 1658 // chip. 1659 final ArrayList<RecipientChip> originalRecipients = 1660 (ArrayList<RecipientChip>) params[0]; 1661 String[] addresses = new String[originalRecipients.size()]; 1662 for (int i = 0; i < originalRecipients.size(); i++) { 1663 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1664 } 1665 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1666 .getMatchingRecipients(getContext(), addresses); 1667 for (final RecipientChip temp : originalRecipients) { 1668 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1669 && getSpannable().getSpanStart(temp) != -1) { 1670 // Replace this. 1671 final RecipientEntry entry = createValidatedEntry(entries 1672 .get(tokenizeAddress(temp.getEntry().getDestination()))); 1673 if (entry != null) { 1674 mHandler.post(new Runnable() { 1675 @Override 1676 public void run() { 1677 replaceChip(temp, entry); 1678 } 1679 }); 1680 } 1681 } 1682 } 1683 return null; 1684 } 1685 } 1686} 1687