RecipientEditTextView.java revision 4e18d8b62dc38558c8911470ef830b638a26cf00
1/* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.ex.chips; 18 19import android.content.Context; 20import android.graphics.Bitmap; 21import android.graphics.BitmapFactory; 22import android.graphics.Canvas; 23import android.graphics.Matrix; 24import android.graphics.Rect; 25import android.graphics.RectF; 26import android.graphics.drawable.BitmapDrawable; 27import android.graphics.drawable.Drawable; 28import android.os.AsyncTask; 29import android.os.Handler; 30import android.os.Message; 31import android.text.Editable; 32import android.text.Layout; 33import android.text.Spannable; 34import android.text.SpannableString; 35import android.text.SpannableStringBuilder; 36import android.text.Spanned; 37import android.text.TextPaint; 38import android.text.TextUtils; 39import android.text.TextWatcher; 40import android.text.method.QwertyKeyListener; 41import android.text.style.ImageSpan; 42import android.text.util.Rfc822Token; 43import android.text.util.Rfc822Tokenizer; 44import android.util.AttributeSet; 45import android.util.Log; 46import android.view.ActionMode; 47import android.view.KeyEvent; 48import android.view.LayoutInflater; 49import android.view.Menu; 50import android.view.MenuItem; 51import android.view.MotionEvent; 52import android.view.View; 53import android.view.ViewParent; 54import android.view.ActionMode.Callback; 55import android.widget.AdapterView; 56import android.widget.AdapterView.OnItemClickListener; 57import android.widget.Filterable; 58import android.widget.ListAdapter; 59import android.widget.ListPopupWindow; 60import android.widget.ListView; 61import android.widget.MultiAutoCompleteTextView; 62import android.widget.ScrollView; 63import android.widget.TextView; 64 65import java.util.Collection; 66import java.util.HashMap; 67import java.util.HashSet; 68import java.util.Set; 69 70import java.util.ArrayList; 71 72/** 73 * RecipientEditTextView is an auto complete text view for use with applications 74 * that use the new Chips UI for addressing a message to recipients. 75 */ 76public class RecipientEditTextView extends MultiAutoCompleteTextView implements 77 OnItemClickListener, Callback, RecipientAlternatesAdapter.OnCheckedItemChangedListener { 78 79 private static final String TAG = "RecipientEditTextView"; 80 81 // TODO: get correct number/ algorithm from with UX. 82 private static final int CHIP_LIMIT = 2; 83 84 private Drawable mChipBackground = null; 85 86 private Drawable mChipDelete = null; 87 88 private int mChipPadding; 89 90 private Tokenizer mTokenizer; 91 92 private Drawable mChipBackgroundPressed; 93 94 private RecipientChip mSelectedChip; 95 96 private int mAlternatesLayout; 97 98 private Bitmap mDefaultContactPhoto; 99 100 private ImageSpan mMoreChip; 101 102 private TextView mMoreItem; 103 104 105 private final ArrayList<String> mPendingChips = new ArrayList<String>(); 106 107 private float mChipHeight; 108 109 private float mChipFontSize; 110 111 private Validator mValidator; 112 113 private Drawable mInvalidChipBackground; 114 115 private Handler mHandler; 116 117 private static int DISMISS = "dismiss".hashCode(); 118 119 private static final long DISMISS_DELAY = 300; 120 121 private int mPendingChipsCount = 0; 122 123 private static int sSelectedTextColor = -1; 124 125 private static final char COMMIT_CHAR_COMMA = ','; 126 127 private static final char COMMIT_CHAR_SEMICOLON = ';'; 128 129 private static final char COMMIT_CHAR_SPACE = ' '; 130 131 private ListPopupWindow mAlternatesPopup; 132 133 private ListPopupWindow mAddressPopup; 134 135 private ArrayList<RecipientChip> mTemporaryRecipients; 136 137 private ArrayList<RecipientChip> mRemovedSpans; 138 139 /** 140 * Used with {@link mAlternatesPopup}. Handles clicks to alternate addresses for a selected chip. 141 */ 142 private OnItemClickListener mAlternatesListener; 143 144 private int mCheckedItem; 145 private TextWatcher mTextWatcher; 146 147 private ScrollView mScrollView; 148 149 private boolean mTried; 150 151 private final Runnable mAddTextWatcher = new Runnable() { 152 @Override 153 public void run() { 154 if (mTextWatcher == null) { 155 mTextWatcher = new RecipientTextWatcher(); 156 addTextChangedListener(mTextWatcher); 157 } 158 } 159 }; 160 161 private IndividualReplacementTask mIndividualReplacements; 162 163 private Runnable mHandlePendingChips = new Runnable() { 164 165 @Override 166 public void run() { 167 handlePendingChips(); 168 } 169 170 }; 171 172 public RecipientEditTextView(Context context, AttributeSet attrs) { 173 super(context, attrs); 174 if (sSelectedTextColor == -1) { 175 sSelectedTextColor = context.getResources().getColor(android.R.color.white); 176 } 177 mAlternatesPopup = new ListPopupWindow(context); 178 mAddressPopup = new ListPopupWindow(context); 179 mAlternatesListener = new OnItemClickListener() { 180 @Override 181 public void onItemClick(AdapterView<?> adapterView,View view, int position, 182 long rowId) { 183 mAlternatesPopup.setOnItemClickListener(null); 184 replaceChip(mSelectedChip, ((RecipientAlternatesAdapter) adapterView.getAdapter()) 185 .getRecipientEntry(position)); 186 Message delayed = Message.obtain(mHandler, DISMISS); 187 delayed.obj = mAlternatesPopup; 188 mHandler.sendMessageDelayed(delayed, DISMISS_DELAY); 189 clearComposingText(); 190 } 191 }; 192 setSuggestionsEnabled(false); 193 setOnItemClickListener(this); 194 setCustomSelectionActionModeCallback(this); 195 mHandler = new Handler() { 196 @Override 197 public void handleMessage(Message msg) { 198 if (msg.what == DISMISS) { 199 ((ListPopupWindow) msg.obj).dismiss(); 200 return; 201 } 202 super.handleMessage(msg); 203 } 204 }; 205 mTextWatcher = new RecipientTextWatcher(); 206 addTextChangedListener(mTextWatcher); 207 } 208 209 @Override 210 public <T extends ListAdapter & Filterable> void setAdapter(T adapter) { 211 super.setAdapter(adapter); 212 if (adapter == null) { 213 return; 214 } 215 } 216 217 @Override 218 public void onSelectionChanged(int start, int end) { 219 // When selection changes, see if it is inside the chips area. 220 // If so, move the cursor back after the chips again. 221 Spannable span = getSpannable(); 222 int textLength = getText().length(); 223 RecipientChip[] chips = span.getSpans(start, textLength, RecipientChip.class); 224 if (chips != null && chips.length > 0) { 225 if (chips != null && chips.length > 0) { 226 // Grab the last chip and set the cursor to after it. 227 setSelection(Math.min(span.getSpanEnd(chips[chips.length - 1]) + 1, textLength)); 228 } 229 } 230 super.onSelectionChanged(start, end); 231 } 232 233 /** 234 * Convenience method: Append the specified text slice to the TextView's 235 * display buffer, upgrading it to BufferType.EDITABLE if it was 236 * not already editable. Commas are excluded as they are added automatically 237 * by the view. 238 */ 239 @Override 240 public void append(CharSequence text, int start, int end) { 241 // We don't care about watching text changes while appending. 242 if (mTextWatcher != null) { 243 removeTextChangedListener(mTextWatcher); 244 } 245 super.append(text, start, end); 246 if (!TextUtils.isEmpty(text) && TextUtils.getTrimmedLength(text) > 0) { 247 final String displayString = (String) text; 248 int seperatorPos = displayString.indexOf(COMMIT_CHAR_COMMA); 249 if (seperatorPos != 0 && !TextUtils.isEmpty(displayString) 250 && TextUtils.getTrimmedLength(displayString) > 0) { 251 mPendingChipsCount++; 252 mPendingChips.add((String)text); 253 } 254 } 255 // Put a message on the queue to make sure we ALWAYS handle pending chips. 256 if (mPendingChipsCount > 0) { 257 postHandlePendingChips(); 258 } 259 mHandler.post(mAddTextWatcher); 260 } 261 262 @Override 263 public void onFocusChanged(boolean hasFocus, int direction, Rect previous) { 264 if (!hasFocus) { 265 shrink(); 266 } else { 267 expand(); 268 scrollLineIntoView(getLineCount()); 269 } 270 super.onFocusChanged(hasFocus, direction, previous); 271 } 272 273 private void shrink() { 274 if (mSelectedChip != null) { 275 clearSelectedChip(); 276 } else { 277 // Reset any pending chips as they would have been handled 278 // when the field lost focus. 279 if (mPendingChipsCount > 0) { 280 postHandlePendingChips(); 281 } else { 282 Editable editable = getText(); 283 int end = getSelectionEnd(); 284 int start = mTokenizer.findTokenStart(editable, end); 285 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 286 if ((chips == null || chips.length == 0)) { 287 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 288 // In the middle of chip; treat this as an edit 289 // and commit the whole token. 290 if (whatEnd != getSelectionEnd()) { 291 handleEdit(start, whatEnd); 292 } else { 293 commitChip(start, end, editable); 294 } 295 } 296 } 297 mHandler.post(mAddTextWatcher); 298 } 299 createMoreChip(); 300 } 301 302 private void expand() { 303 removeMoreChip(); 304 setCursorVisible(true); 305 Editable text = getText(); 306 setSelection(text != null && text.length() > 0 ? text.length() : 0); 307 // If there are any temporary chips, try replacing them now that the user 308 // has expanded the field. 309 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0) { 310 new RecipientReplacementTask().execute(); 311 mTemporaryRecipients = null; 312 } 313 } 314 315 private CharSequence ellipsizeText(CharSequence text, TextPaint paint, float maxWidth) { 316 paint.setTextSize(mChipFontSize); 317 if (maxWidth <= 0 && Log.isLoggable(TAG, Log.DEBUG)) { 318 Log.d(TAG, "Max width is negative: " + maxWidth); 319 } 320 return TextUtils.ellipsize(text, paint, maxWidth, 321 TextUtils.TruncateAt.END); 322 } 323 324 private Bitmap createSelectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 325 // Ellipsize the text so that it takes AT MOST the entire width of the 326 // autocomplete text entry area. Make sure to leave space for padding 327 // on the sides. 328 int height = (int) mChipHeight; 329 int deleteWidth = height; 330 CharSequence ellipsizedText = ellipsizeText(contact.getDisplayName(), paint, 331 calculateAvailableWidth(true) - deleteWidth); 332 333 // Make sure there is a minimum chip width so the user can ALWAYS 334 // tap a chip without difficulty. 335 int width = Math.max(deleteWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 336 ellipsizedText.length())) 337 + (mChipPadding * 2) + deleteWidth); 338 339 // Create the background of the chip. 340 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 341 Canvas canvas = new Canvas(tmpBitmap); 342 if (mChipBackgroundPressed != null) { 343 mChipBackgroundPressed.setBounds(0, 0, width, height); 344 mChipBackgroundPressed.draw(canvas); 345 paint.setColor(sSelectedTextColor); 346 // Align the display text with where the user enters text. 347 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, height 348 - Math.abs(height - mChipFontSize)/2, paint); 349 // Make the delete a square. 350 mChipDelete.setBounds(width - deleteWidth, 0, width, height); 351 mChipDelete.draw(canvas); 352 } else { 353 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 354 } 355 return tmpBitmap; 356 } 357 358 359 /** 360 * Get the background drawable for a RecipientChip. 361 */ 362 public Drawable getChipBackground(RecipientEntry contact) { 363 return (mValidator != null && mValidator.isValid(contact.getDestination())) ? 364 mChipBackground : mInvalidChipBackground; 365 } 366 367 private Bitmap createUnselectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 368 // Ellipsize the text so that it takes AT MOST the entire width of the 369 // autocomplete text entry area. Make sure to leave space for padding 370 // on the sides. 371 int height = (int) mChipHeight; 372 int iconWidth = height; 373 CharSequence ellipsizedText = ellipsizeText(contact.getDisplayName(), paint, 374 calculateAvailableWidth(false) - iconWidth); 375 // Make sure there is a minimum chip width so the user can ALWAYS 376 // tap a chip without difficulty. 377 int width = Math.max(iconWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 378 ellipsizedText.length())) 379 + (mChipPadding * 2) + iconWidth); 380 381 // Create the background of the chip. 382 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 383 Canvas canvas = new Canvas(tmpBitmap); 384 Drawable background = getChipBackground(contact); 385 if (background != null) { 386 background.setBounds(0, 0, width, height); 387 background.draw(canvas); 388 389 // Don't draw photos for recipients that have been typed in. 390 if (contact.getContactId() != RecipientEntry.INVALID_CONTACT) { 391 byte[] photoBytes = contact.getPhotoBytes(); 392 // There may not be a photo yet if anything but the first contact address 393 // was selected. 394 if (photoBytes == null && contact.getPhotoThumbnailUri() != null) { 395 // TODO: cache this in the recipient entry? 396 ((BaseRecipientAdapter) getAdapter()).fetchPhoto(contact, contact 397 .getPhotoThumbnailUri()); 398 photoBytes = contact.getPhotoBytes(); 399 } 400 401 Bitmap photo; 402 if (photoBytes != null) { 403 photo = BitmapFactory.decodeByteArray(photoBytes, 0, photoBytes.length); 404 } else { 405 // TODO: can the scaled down default photo be cached? 406 photo = mDefaultContactPhoto; 407 } 408 // Draw the photo on the left side. 409 Matrix matrix = new Matrix(); 410 RectF src = new RectF(0, 0, photo.getWidth(), photo.getHeight()); 411 RectF dst = new RectF(width - iconWidth, 0, width, height); 412 matrix.setRectToRect(src, dst, Matrix.ScaleToFit.CENTER); 413 canvas.drawBitmap(photo, matrix, paint); 414 } else { 415 // Don't leave any space for the icon. It isn't being drawn. 416 iconWidth = 0; 417 } 418 419 // Align the display text with where the user enters text. 420 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 421 height - Math.abs(height - mChipFontSize) / 2, paint); 422 } else { 423 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 424 } 425 return tmpBitmap; 426 } 427 428 public RecipientChip constructChipSpan(RecipientEntry contact, int offset, boolean pressed) 429 throws NullPointerException { 430 if (mChipBackground == null) { 431 throw new NullPointerException( 432 "Unable to render any chips as setChipDimensions was not called."); 433 } 434 Layout layout = getLayout(); 435 436 TextPaint paint = getPaint(); 437 float defaultSize = paint.getTextSize(); 438 int defaultColor = paint.getColor(); 439 440 Bitmap tmpBitmap; 441 if (pressed) { 442 tmpBitmap = createSelectedChip(contact, paint, layout); 443 444 } else { 445 tmpBitmap = createUnselectedChip(contact, paint, layout); 446 } 447 448 // Pass the full text, un-ellipsized, to the chip. 449 Drawable result = new BitmapDrawable(getResources(), tmpBitmap); 450 result.setBounds(0, 0, tmpBitmap.getWidth(), tmpBitmap.getHeight()); 451 RecipientChip recipientChip = new RecipientChip(result, contact, offset); 452 // Return text to the original size. 453 paint.setTextSize(defaultSize); 454 paint.setColor(defaultColor); 455 return recipientChip; 456 } 457 458 /** 459 * Calculate the bottom of the line the chip will be located on using: 460 * 1) which line the chip appears on 461 * 2) the height of a chip 462 * 3) padding built into the edit text view 463 */ 464 private int calculateOffsetFromBottom(int line) { 465 // Line offsets start at zero. 466 int actualLine = getLineCount() - (line + 1); 467 return -((actualLine * ((int)mChipHeight) + getPaddingBottom()) + getPaddingTop()); 468 } 469 470 /** 471 * Get the max amount of space a chip can take up. The formula takes into 472 * account the width of the EditTextView, any view padding, and padding 473 * that will be added to the chip. 474 */ 475 private float calculateAvailableWidth(boolean pressed) { 476 return getWidth() - getPaddingLeft() - getPaddingRight() - (mChipPadding * 2); 477 } 478 479 /** 480 * Set all chip dimensions and resources. This has to be done from the 481 * application as this is a static library. 482 * @param chipBackground 483 * @param chipBackgroundPressed 484 * @param invalidChip 485 * @param chipDelete 486 * @param defaultContact 487 * @param moreResource 488 * @param alternatesLayout 489 * @param chipHeight 490 * @param padding Padding around the text in a chip 491 */ 492 public void setChipDimensions(Drawable chipBackground, Drawable chipBackgroundPressed, 493 Drawable invalidChip, Drawable chipDelete, Bitmap defaultContact, int moreResource, 494 int alternatesLayout, float chipHeight, float padding, 495 float chipFontSize) { 496 mChipBackground = chipBackground; 497 mChipBackgroundPressed = chipBackgroundPressed; 498 mChipDelete = chipDelete; 499 mChipPadding = (int) padding; 500 mAlternatesLayout = alternatesLayout; 501 mDefaultContactPhoto = defaultContact; 502 mMoreItem = (TextView) LayoutInflater.from(getContext()).inflate(moreResource, null); 503 mChipHeight = chipHeight; 504 mChipFontSize = chipFontSize; 505 mInvalidChipBackground = invalidChip; 506 } 507 508 @Override 509 public void onSizeChanged(int width, int height, int oldw, int oldh) { 510 super.onSizeChanged(width, height, oldw, oldh); 511 if (width != 0 && height != 0 && mPendingChipsCount > 0) { 512 postHandlePendingChips(); 513 } 514 // Try to find the scroll view parent, if it exists. 515 if (mScrollView == null && !mTried) { 516 ViewParent parent = getParent(); 517 while (parent != null && !(parent instanceof ScrollView)) { 518 parent = parent.getParent(); 519 } 520 if (parent != null) { 521 mScrollView = (ScrollView) parent; 522 } 523 mTried = true; 524 } 525 } 526 527 private void postHandlePendingChips() { 528 mHandler.removeCallbacks(mHandlePendingChips); 529 mHandler.post(mHandlePendingChips); 530 } 531 532 private void handlePendingChips() { 533 if (mPendingChipsCount <= 0) { 534 return; 535 } 536 if (getWidth() <= 0) { 537 // The widget has not been sized yet. 538 // This will be called as a result of onSizeChanged 539 // at a later point. 540 return; 541 } 542 synchronized (mPendingChips) { 543 mTemporaryRecipients = new ArrayList<RecipientChip>(mPendingChipsCount); 544 Editable editable = getText(); 545 // Tokenize! 546 for (int i = 0; i < mPendingChips.size(); i++) { 547 String current = mPendingChips.get(i); 548 int tokenStart = editable.toString().indexOf(current); 549 int tokenEnd = tokenStart + current.length(); 550 if (tokenStart >= 0) { 551 // When we have a valid token, include it with the token 552 // to the left. 553 if (tokenEnd < editable.length() - 2 554 && editable.charAt(tokenEnd) == COMMIT_CHAR_COMMA) { 555 tokenEnd++; 556 } 557 createReplacementChip(tokenStart, tokenEnd, editable); 558 } 559 mPendingChipsCount--; 560 } 561 sanitizeSpannable(); 562 if (mTemporaryRecipients != null 563 && mTemporaryRecipients.size() <= RecipientAlternatesAdapter.MAX_LOOKUPS) { 564 if (hasFocus() || mTemporaryRecipients.size() < CHIP_LIMIT) { 565 new RecipientReplacementTask().execute(); 566 mTemporaryRecipients = null; 567 } else { 568 // Create the "more" chip 569 mIndividualReplacements = new IndividualReplacementTask(); 570 mIndividualReplacements.execute(new ArrayList<RecipientChip>( 571 mTemporaryRecipients.subList(0, CHIP_LIMIT))); 572 573 createMoreChip(); 574 } 575 } else { 576 // There are too many recipients to look up, so just fall back 577 // to 578 // showing addresses for all of them. 579 mTemporaryRecipients = null; 580 createMoreChip(); 581 } 582 mPendingChipsCount = 0; 583 mPendingChips.clear(); 584 } 585 } 586 587 /** 588 * Remove any characters after the last valid chip. 589 */ 590 private void sanitizeSpannable() { 591 // Find the last chip; eliminate any commit characters after it. 592 RecipientChip[] chips = getRecipients(); 593 if (chips != null && chips.length > 0) { 594 int end; 595 ImageSpan lastSpan; 596 if (mMoreChip != null) { 597 lastSpan = mMoreChip; 598 } else { 599 lastSpan = chips[chips.length - 1]; 600 } 601 end = getSpannable().getSpanEnd(lastSpan); 602 Editable editable = getText(); 603 int length = editable.length(); 604 if (length > end) { 605 // See what characters occur after that and eliminate them. 606 if (Log.isLoggable(TAG, Log.DEBUG)) { 607 Log.d(TAG, "There were extra characters after the last tokenizable entry." 608 + editable); 609 } 610 editable.delete(end + 1, length); 611 } 612 } 613 } 614 615 /** 616 * Create a chip that represents just the email address of a recipient. At some later 617 * point, this chip will be attached to a real contact entry, if one exists. 618 */ 619 private void createReplacementChip(int tokenStart, int tokenEnd, Editable editable) { 620 if (alreadyHasChip(tokenStart, tokenEnd)) { 621 // There is already a chip present at this location. 622 // Don't recreate it. 623 return; 624 } 625 String token = editable.toString().substring(tokenStart, tokenEnd); 626 int commitCharIndex = token.trim().lastIndexOf(COMMIT_CHAR_COMMA); 627 if (commitCharIndex == token.length() - 1) { 628 token = token.substring(0, token.length() - 1); 629 } 630 RecipientEntry entry = createTokenizedEntry(token); 631 String destText = entry.getDestination(); 632 destText = (String) mTokenizer.terminateToken(destText); 633 // Always leave a blank space at the end of a chip. 634 int textLength = destText.length() - 1; 635 SpannableString chipText = new SpannableString(destText); 636 int end = getSelectionEnd(); 637 int start = mTokenizer.findTokenStart(getText(), end); 638 RecipientChip chip = null; 639 try { 640 chip = constructChipSpan(entry, start, false); 641 chipText.setSpan(chip, 0, textLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 642 } catch (NullPointerException e) { 643 Log.e(TAG, e.getMessage(), e); 644 } 645 646 editable.replace(tokenStart, tokenEnd, chipText); 647 // Add this chip to the list of entries "to replace" 648 if (chip != null) { 649 mTemporaryRecipients.add(chip); 650 } 651 } 652 653 private RecipientEntry createTokenizedEntry(String token) { 654 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(token); 655 String display = null; 656 if (isValid(token) && tokens != null && tokens.length > 0) { 657 display = tokens[0].getName(); 658 if (!TextUtils.isEmpty(display)) { 659 return RecipientEntry.constructGeneratedEntry(display, token); 660 } 661 display = tokens[0].getAddress(); 662 if (!TextUtils.isEmpty(display)) { 663 return RecipientEntry.constructGeneratedEntry(display, token); 664 } 665 } 666 // Unable to validate the token or to create a valid token from it. 667 // Just create a chip the user can edit. 668 if (mValidator != null && !mValidator.isValid(token)) { 669 // Try fixing up the entry using the validator. 670 token = mValidator.fixText(token).toString(); 671 token = Rfc822Tokenizer.tokenize(token)[0].getAddress(); 672 } 673 return RecipientEntry.constructFakeEntry(token); 674 } 675 676 private boolean isValid(String text) { 677 return mValidator == null ? true : mValidator.isValid(text); 678 } 679 680 private String tokenizeAddress(String destination) { 681 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(destination); 682 if (tokens != null && tokens.length > 0) { 683 return tokens[0].getAddress(); 684 } 685 return destination; 686 } 687 688 @Override 689 public void setTokenizer(Tokenizer tokenizer) { 690 mTokenizer = tokenizer; 691 super.setTokenizer(mTokenizer); 692 } 693 694 @Override 695 public void setValidator(Validator validator) { 696 mValidator = validator; 697 super.setValidator(validator); 698 } 699 700 /** 701 * We cannot use the default mechanism for replaceText. Instead, 702 * we override onItemClickListener so we can get all the associated 703 * contact information including display text, address, and id. 704 */ 705 @Override 706 protected void replaceText(CharSequence text) { 707 return; 708 } 709 710 /** 711 * Dismiss any selected chips when the back key is pressed. 712 */ 713 @Override 714 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 715 if (keyCode == KeyEvent.KEYCODE_BACK) { 716 clearSelectedChip(); 717 } 718 return super.onKeyPreIme(keyCode, event); 719 } 720 721 /** 722 * Monitor key presses in this view to see if the user types 723 * any commit keys, which consist of ENTER, TAB, or DPAD_CENTER. 724 * If the user has entered text that has contact matches and types 725 * a commit key, create a chip from the topmost matching contact. 726 * If the user has entered text that has no contact matches and types 727 * a commit key, then create a chip from the text they have entered. 728 */ 729 @Override 730 public boolean onKeyUp(int keyCode, KeyEvent event) { 731 switch (keyCode) { 732 case KeyEvent.KEYCODE_ENTER: 733 case KeyEvent.KEYCODE_DPAD_CENTER: 734 if (event.hasNoModifiers()) { 735 if (commitDefault()) { 736 return true; 737 } 738 if (mSelectedChip != null) { 739 clearSelectedChip(); 740 return true; 741 } else if (focusNext()) { 742 return true; 743 } 744 } 745 break; 746 case KeyEvent.KEYCODE_TAB: 747 if (event.hasNoModifiers()) { 748 if (mSelectedChip != null) { 749 clearSelectedChip(); 750 } else { 751 commitDefault(); 752 } 753 if (focusNext()) { 754 return true; 755 } 756 } 757 } 758 return super.onKeyUp(keyCode, event); 759 } 760 761 private boolean focusNext() { 762 View next = focusSearch(View.FOCUS_DOWN); 763 if (next != null) { 764 next.requestFocus(); 765 return true; 766 } 767 return false; 768 } 769 770 /** 771 * Create a chip from the default selection. If the popup is showing, the 772 * default is the first item in the popup suggestions list. Otherwise, it is 773 * whatever the user had typed in. End represents where the the tokenizer 774 * should search for a token to turn into a chip. 775 * @return If a chip was created from a real contact. 776 */ 777 private boolean commitDefault() { 778 Editable editable = getText(); 779 int end = getSelectionEnd(); 780 int start = mTokenizer.findTokenStart(editable, end); 781 782 if (shouldCreateChip(start, end)) { 783 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 784 // In the middle of chip; treat this as an edit 785 // and commit the whole token. 786 if (whatEnd != getSelectionEnd()) { 787 handleEdit(start, whatEnd); 788 return true; 789 } 790 return commitChip(start, end , editable); 791 } 792 return false; 793 } 794 795 private void commitByCharacter() { 796 Editable editable = getText(); 797 int end = getSelectionEnd(); 798 int start = mTokenizer.findTokenStart(editable, end); 799 if (shouldCreateChip(start, end)) { 800 commitChip(start, end, editable); 801 } 802 setSelection(getText().length()); 803 } 804 805 private boolean commitChip(int start, int end, Editable editable) { 806 if (getAdapter().getCount() > 0 && enoughToFilter()) { 807 // choose the first entry. 808 submitItemAtPosition(0); 809 dismissDropDown(); 810 return true; 811 } else { 812 int tokenEnd = mTokenizer.findTokenEnd(editable, start); 813 String text = editable.toString().substring(start, tokenEnd).trim(); 814 clearComposingText(); 815 if (text != null && text.length() > 0 && !text.equals(" ")) { 816 RecipientEntry entry = createTokenizedEntry(text); 817 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 818 CharSequence chipText = createChip(entry, false); 819 editable.replace(start, end, chipText); 820 dismissDropDown(); 821 return true; 822 } 823 } 824 return false; 825 } 826 827 private boolean shouldCreateChip(int start, int end) { 828 return hasFocus() && enoughToFilter() && !alreadyHasChip(start, end); 829 } 830 831 private boolean alreadyHasChip(int start, int end) { 832 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 833 if ((chips == null || chips.length == 0)) { 834 return false; 835 } 836 return true; 837 } 838 839 private void handleEdit(int start, int end) { 840 // This is in the middle of a chip, so select out the whole chip 841 // and commit it. 842 Editable editable = getText(); 843 setSelection(end); 844 String text = getText().toString().substring(start, end); 845 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 846 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 847 CharSequence chipText = createChip(entry, false); 848 editable.replace(start, getSelectionEnd(), chipText); 849 dismissDropDown(); 850 } 851 852 /** 853 * If there is a selected chip, delegate the key events 854 * to the selected chip. 855 */ 856 @Override 857 public boolean onKeyDown(int keyCode, KeyEvent event) { 858 if (mSelectedChip != null && keyCode == KeyEvent.KEYCODE_DEL) { 859 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 860 mAlternatesPopup.dismiss(); 861 } 862 removeChip(mSelectedChip); 863 } 864 865 if (keyCode == KeyEvent.KEYCODE_ENTER && event.hasNoModifiers()) { 866 return true; 867 } 868 869 return super.onKeyDown(keyCode, event); 870 } 871 872 private Spannable getSpannable() { 873 return getText(); 874 } 875 876 private int getChipStart(RecipientChip chip) { 877 return getSpannable().getSpanStart(chip); 878 } 879 880 private int getChipEnd(RecipientChip chip) { 881 return getSpannable().getSpanEnd(chip); 882 } 883 884 /** 885 * Instead of filtering on the entire contents of the edit box, 886 * this subclass method filters on the range from 887 * {@link Tokenizer#findTokenStart} to {@link #getSelectionEnd} 888 * if the length of that range meets or exceeds {@link #getThreshold} 889 * and makes sure that the range is not already a Chip. 890 */ 891 @Override 892 protected void performFiltering(CharSequence text, int keyCode) { 893 if (enoughToFilter()) { 894 int end = getSelectionEnd(); 895 int start = mTokenizer.findTokenStart(text, end); 896 // If this is a RecipientChip, don't filter 897 // on its contents. 898 Spannable span = getSpannable(); 899 RecipientChip[] chips = span.getSpans(start, end, RecipientChip.class); 900 if (chips != null && chips.length > 0) { 901 return; 902 } 903 } 904 super.performFiltering(text, keyCode); 905 } 906 907 private void clearSelectedChip() { 908 if (mSelectedChip != null) { 909 unselectChip(mSelectedChip); 910 mSelectedChip = null; 911 } 912 setCursorVisible(true); 913 } 914 915 /** 916 * Monitor touch events in the RecipientEditTextView. 917 * If the view does not have focus, any tap on the view 918 * will just focus the view. If the view has focus, determine 919 * if the touch target is a recipient chip. If it is and the chip 920 * is not selected, select it and clear any other selected chips. 921 * If it isn't, then select that chip. 922 */ 923 @Override 924 public boolean onTouchEvent(MotionEvent event) { 925 if (!isFocused()) { 926 // Ignore any chip taps until this view is focused. 927 return super.onTouchEvent(event); 928 } 929 930 boolean handled = super.onTouchEvent(event); 931 int action = event.getAction(); 932 boolean chipWasSelected = false; 933 934 if (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_DOWN) { 935 float x = event.getX(); 936 float y = event.getY(); 937 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 938 RecipientChip currentChip = findChip(offset); 939 if (currentChip != null) { 940 if (action == MotionEvent.ACTION_UP) { 941 if (mSelectedChip != null && mSelectedChip != currentChip) { 942 clearSelectedChip(); 943 mSelectedChip = selectChip(currentChip); 944 } else if (mSelectedChip == null) { 945 // Selection may have moved due to the tap event, 946 // but make sure we correctly reset selection to the 947 // end so that any unfinished chips are committed. 948 setSelection(getText().length()); 949 commitDefault(); 950 mSelectedChip = selectChip(currentChip); 951 } else { 952 onClick(mSelectedChip, offset, x, y); 953 } 954 } 955 chipWasSelected = true; 956 handled = true; 957 } 958 } 959 if (action == MotionEvent.ACTION_UP && !chipWasSelected) { 960 clearSelectedChip(); 961 } 962 return handled; 963 } 964 965 private void scrollLineIntoView(int line) { 966 if (mScrollView != null) { 967 mScrollView.scrollBy(0, calculateOffsetFromBottom(line)); 968 } 969 } 970 971 private void showAlternates(RecipientChip currentChip, ListPopupWindow alternatesPopup, 972 int width, Context context) { 973 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 974 int bottom = calculateOffsetFromBottom(line); 975 // Align the alternates popup with the left side of the View, 976 // regardless of the position of the chip tapped. 977 alternatesPopup.setWidth(width); 978 alternatesPopup.setAnchorView(this); 979 alternatesPopup.setVerticalOffset(bottom); 980 alternatesPopup.setAdapter(createAlternatesAdapter(currentChip)); 981 alternatesPopup.setOnItemClickListener(mAlternatesListener); 982 alternatesPopup.show(); 983 ListView listView = alternatesPopup.getListView(); 984 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 985 // Checked item would be -1 if the adapter has not 986 // loaded the view that should be checked yet. The 987 // variable will be set correctly when onCheckedItemChanged 988 // is called in a separate thread. 989 if (mCheckedItem != -1) { 990 listView.setItemChecked(mCheckedItem, true); 991 mCheckedItem = -1; 992 } 993 } 994 995 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 996 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 997 mAlternatesLayout, this); 998 } 999 1000 private ListAdapter createSingleAddressAdapter(RecipientChip currentChip) { 1001 return new SingleRecipientArrayAdapter(getContext(), mAlternatesLayout, currentChip 1002 .getEntry()); 1003 } 1004 1005 public void onCheckedItemChanged(int position) { 1006 ListView listView = mAlternatesPopup.getListView(); 1007 if (listView != null && listView.getCheckedItemCount() == 0) { 1008 listView.setItemChecked(position, true); 1009 } else { 1010 mCheckedItem = position; 1011 } 1012 } 1013 1014 // TODO: This algorithm will need a lot of tweaking after more people have used 1015 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 1016 // what comes before the finger. 1017 private int putOffsetInRange(int o) { 1018 int offset = o; 1019 Editable text = getText(); 1020 int length = text.length(); 1021 // Remove whitespace from end to find "real end" 1022 int realLength = length; 1023 for (int i = length - 1; i >= 0; i--) { 1024 if (text.charAt(i) == ' ') { 1025 realLength--; 1026 } else { 1027 break; 1028 } 1029 } 1030 1031 // If the offset is beyond or at the end of the text, 1032 // leave it alone. 1033 if (offset >= realLength) { 1034 return offset; 1035 } 1036 Editable editable = getText(); 1037 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 1038 // Keep walking backward! 1039 offset--; 1040 } 1041 return offset; 1042 } 1043 1044 private int findText(Editable text, int offset) { 1045 if (text.charAt(offset) != ' ') { 1046 return offset; 1047 } 1048 return -1; 1049 } 1050 1051 private RecipientChip findChip(int offset) { 1052 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1053 // Find the chip that contains this offset. 1054 for (int i = 0; i < chips.length; i++) { 1055 RecipientChip chip = chips[i]; 1056 int start = getChipStart(chip); 1057 int end = getChipEnd(chip); 1058 if (offset >= start && offset <= end) { 1059 return chip; 1060 } 1061 } 1062 return null; 1063 } 1064 1065 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 1066 String displayText = entry.getDestination(); 1067 displayText = (String) mTokenizer.terminateToken(displayText); 1068 // Always leave a blank space at the end of a chip. 1069 int textLength = displayText.length()-1; 1070 SpannableString chipText = new SpannableString(displayText); 1071 int end = getSelectionEnd(); 1072 int start = mTokenizer.findTokenStart(getText(), end); 1073 try { 1074 chipText.setSpan(constructChipSpan(entry, start, pressed), 0, textLength, 1075 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1076 } catch (NullPointerException e) { 1077 Log.e(TAG, e.getMessage(), e); 1078 return null; 1079 } 1080 1081 return chipText; 1082 } 1083 1084 /** 1085 * When an item in the suggestions list has been clicked, create a chip from the 1086 * contact information of the selected item. 1087 */ 1088 @Override 1089 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1090 submitItemAtPosition(position); 1091 } 1092 1093 private void submitItemAtPosition(int position) { 1094 RecipientEntry entry = createValidatedEntry( 1095 (RecipientEntry)getAdapter().getItem(position)); 1096 if (entry == null) { 1097 return; 1098 } 1099 clearComposingText(); 1100 1101 int end = getSelectionEnd(); 1102 int start = mTokenizer.findTokenStart(getText(), end); 1103 1104 Editable editable = getText(); 1105 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1106 editable.replace(start, end, createChip(entry, false)); 1107 } 1108 1109 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1110 if (item == null) { 1111 return null; 1112 } 1113 final RecipientEntry entry; 1114 // If the display name and the address are the same, or if this is a 1115 // valid contact, but the destination is invalid, then make this a fake 1116 // recipient that is editable. 1117 String destination = item.getDestination(); 1118 if (TextUtils.isEmpty(item.getDisplayName()) 1119 || TextUtils.equals(item.getDisplayName(), destination) 1120 || (mValidator != null && !mValidator.isValid(destination))) { 1121 entry = RecipientEntry.constructFakeEntry(destination); 1122 } else { 1123 entry = item; 1124 } 1125 return entry; 1126 } 1127 1128 /** Returns a collection of contact Id for each chip inside this View. */ 1129 /* package */ Collection<Long> getContactIds() { 1130 final Set<Long> result = new HashSet<Long>(); 1131 RecipientChip[] chips = getRecipients(); 1132 if (chips != null) { 1133 for (RecipientChip chip : chips) { 1134 result.add(chip.getContactId()); 1135 } 1136 } 1137 return result; 1138 } 1139 1140 private RecipientChip[] getRecipients() { 1141 return getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1142 } 1143 1144 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1145 /* package */ Collection<Long> getDataIds() { 1146 final Set<Long> result = new HashSet<Long>(); 1147 RecipientChip [] chips = getRecipients(); 1148 if (chips != null) { 1149 for (RecipientChip chip : chips) { 1150 result.add(chip.getDataId()); 1151 } 1152 } 1153 return result; 1154 } 1155 1156 1157 @Override 1158 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1159 return false; 1160 } 1161 1162 @Override 1163 public void onDestroyActionMode(ActionMode mode) { 1164 } 1165 1166 @Override 1167 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1168 return false; 1169 } 1170 1171 /** 1172 * No chips are selectable. 1173 */ 1174 @Override 1175 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1176 return false; 1177 } 1178 1179 /** 1180 * Create the more chip. The more chip is text that replaces any chips that 1181 * do not fit in the pre-defined available space when the 1182 * RecipientEditTextView loses focus. 1183 */ 1184 private void createMoreChip() { 1185 RecipientChip[] recipients = getRecipients(); 1186 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1187 mMoreChip = null; 1188 return; 1189 } 1190 int numRecipients = recipients.length; 1191 int overage = numRecipients - CHIP_LIMIT; 1192 Editable text = getText(); 1193 String moreText = String.format(mMoreItem.getText().toString(), overage); 1194 TextPaint morePaint = new TextPaint(getPaint()); 1195 morePaint.setTextSize(mMoreItem.getTextSize()); 1196 morePaint.setColor(mMoreItem.getCurrentTextColor()); 1197 int width = (int)morePaint.measureText(moreText) + mMoreItem.getPaddingLeft() 1198 + mMoreItem.getPaddingRight(); 1199 int height = getLineHeight(); 1200 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1201 Canvas canvas = new Canvas(drawable); 1202 canvas.drawText(moreText, 0, moreText.length(), 0, height - getLayout().getLineDescent(0), 1203 morePaint); 1204 1205 Drawable result = new BitmapDrawable(getResources(), drawable); 1206 result.setBounds(0, 0, width, height); 1207 ImageSpan moreSpan = new ImageSpan(result); 1208 Spannable spannable = getSpannable(); 1209 // Remove the overage chips. 1210 if (recipients == null || recipients.length == 0) { 1211 Log.w(TAG, 1212 "We have recipients. Tt should not be possible to have zero RecipientChips."); 1213 mMoreChip = null; 1214 return; 1215 } 1216 mRemovedSpans = new ArrayList<RecipientChip>(); 1217 int totalReplaceStart = 0; 1218 int totalReplaceEnd = 0; 1219 for (int i = numRecipients - overage; i < recipients.length; i++) { 1220 mRemovedSpans.add(recipients[i]); 1221 if (i == numRecipients - overage) { 1222 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1223 } 1224 if (i == recipients.length - 1) { 1225 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1226 } 1227 if (mTemporaryRecipients != null && !mTemporaryRecipients.contains(recipients[i])) { 1228 recipients[i].storeChipStart(spannable.getSpanStart(recipients[i])); 1229 recipients[i].storeChipEnd(spannable.getSpanEnd(recipients[i])); 1230 } 1231 spannable.removeSpan(recipients[i]); 1232 } 1233 // TODO: why would these ever be backwards? 1234 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1235 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1236 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1237 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1238 text.replace(start, end, chipText); 1239 mMoreChip = moreSpan; 1240 } 1241 1242 /** 1243 * Replace the more chip, if it exists, with all of the recipient chips it had 1244 * replaced when the RecipientEditTextView gains focus. 1245 */ 1246 private void removeMoreChip() { 1247 if (mMoreChip != null) { 1248 Spannable span = getSpannable(); 1249 span.removeSpan(mMoreChip); 1250 mMoreChip = null; 1251 // Re-add the spans that were removed. 1252 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1253 // Recreate each removed span. 1254 Editable editable = getText(); 1255 for (RecipientChip chip : mRemovedSpans) { 1256 int chipStart = chip.getStoredChipStart(); 1257 int chipEnd; 1258 String token; 1259 if (chipStart == -1) { 1260 // Need to find the location of the chip, again. 1261 token = (String)mTokenizer.terminateToken(chip.getEntry().getDestination()); 1262 chipStart = editable.toString().indexOf(token); 1263 // -1 for the space! 1264 chipEnd = chipStart + token.length() - 1; 1265 } else { 1266 chipEnd = Math.min(editable.length(), chip.getStoredChipEnd()); 1267 } 1268 if (Log.isLoggable(TAG, Log.DEBUG) && chipEnd != chip.getStoredChipEnd()) { 1269 Log.d(TAG, 1270 "Unexpectedly, the chip ended after the end of the editable text. " 1271 + "Chip End " + chip.getStoredChipEnd() 1272 + "Editable length " + editable.length()); 1273 } 1274 // Only set the span if we found a matching token. 1275 if (chipStart != -1) { 1276 editable.setSpan(chip, chipStart, chipEnd, 1277 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1278 } 1279 } 1280 mRemovedSpans.clear(); 1281 } 1282 } 1283 } 1284 1285 /** 1286 * Show specified chip as selected. If the RecipientChip is just an email address, 1287 * selecting the chip will take the contents of the chip and place it at 1288 * the end of the RecipientEditTextView for inline editing. If the 1289 * RecipientChip is a complete contact, then selecting the chip 1290 * will change the background color of the chip, show the delete icon, 1291 * and a popup window with the address in use highlighted and any other 1292 * alternate addresses for the contact. 1293 * @param currentChip Chip to select. 1294 * @return A RecipientChip in the selected state or null if the chip 1295 * just contained an email address. 1296 */ 1297 public RecipientChip selectChip(RecipientChip currentChip) { 1298 if (currentChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1299 CharSequence text = currentChip.getValue(); 1300 Editable editable = getText(); 1301 removeChip(currentChip); 1302 editable.append(text); 1303 setCursorVisible(true); 1304 setSelection(editable.length()); 1305 return null; 1306 } else if (currentChip.getContactId() == RecipientEntry.GENERATED_CONTACT) { 1307 int start = getChipStart(currentChip); 1308 int end = getChipEnd(currentChip); 1309 getSpannable().removeSpan(currentChip); 1310 RecipientChip newChip; 1311 try { 1312 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1313 } catch (NullPointerException e) { 1314 Log.e(TAG, e.getMessage(), e); 1315 return null; 1316 } 1317 Editable editable = getText(); 1318 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1319 if (start == -1 || end == -1) { 1320 Log.d(TAG, "The chip being selected no longer exists but should."); 1321 } else { 1322 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1323 } 1324 newChip.setSelected(true); 1325 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1326 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1327 } 1328 showAddress(newChip, mAddressPopup, getWidth(), getContext()); 1329 setCursorVisible(false); 1330 return newChip; 1331 } else { 1332 int start = getChipStart(currentChip); 1333 int end = getChipEnd(currentChip); 1334 getSpannable().removeSpan(currentChip); 1335 RecipientChip newChip; 1336 try { 1337 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1338 } catch (NullPointerException e) { 1339 Log.e(TAG, e.getMessage(), e); 1340 return null; 1341 } 1342 Editable editable = getText(); 1343 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1344 if (start == -1 || end == -1) { 1345 Log.d(TAG, "The chip being selected no longer exists but should."); 1346 } else { 1347 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1348 } 1349 newChip.setSelected(true); 1350 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1351 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1352 } 1353 showAlternates(newChip, mAlternatesPopup, getWidth(), getContext()); 1354 setCursorVisible(false); 1355 return newChip; 1356 } 1357 } 1358 1359 1360 private void showAddress(final RecipientChip currentChip, final ListPopupWindow popup, 1361 int width, Context context) { 1362 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1363 int bottom = calculateOffsetFromBottom(line); 1364 // Align the alternates popup with the left side of the View, 1365 // regardless of the position of the chip tapped. 1366 popup.setWidth(width); 1367 popup.setAnchorView(this); 1368 popup.setVerticalOffset(bottom); 1369 popup.setAdapter(createSingleAddressAdapter(currentChip)); 1370 popup.setOnItemClickListener(new OnItemClickListener() { 1371 @Override 1372 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1373 unselectChip(currentChip); 1374 popup.dismiss(); 1375 } 1376 }); 1377 popup.show(); 1378 ListView listView = popup.getListView(); 1379 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1380 listView.setItemChecked(0, true); 1381 } 1382 1383 /** 1384 * Remove selection from this chip. Unselecting a RecipientChip will render 1385 * the chip without a delete icon and with an unfocused background. This 1386 * is called when the RecipientChip no longer has focus. 1387 */ 1388 public void unselectChip(RecipientChip chip) { 1389 int start = getChipStart(chip); 1390 int end = getChipEnd(chip); 1391 Editable editable = getText(); 1392 mSelectedChip = null; 1393 if (start == -1 || end == -1) { 1394 Log.e(TAG, "The chip being unselected no longer exists but should."); 1395 } else { 1396 getSpannable().removeSpan(chip); 1397 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1398 editable.removeSpan(chip); 1399 try { 1400 editable.setSpan(constructChipSpan(chip.getEntry(), start, false), start, end, 1401 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1402 } catch (NullPointerException e) { 1403 Log.e(TAG, e.getMessage(), e); 1404 } 1405 } 1406 setCursorVisible(true); 1407 setSelection(editable.length()); 1408 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1409 mAlternatesPopup.dismiss(); 1410 } 1411 } 1412 1413 1414 /** 1415 * Return whether this chip contains the position passed in. 1416 */ 1417 public boolean matchesChip(RecipientChip chip, int offset) { 1418 int start = getChipStart(chip); 1419 int end = getChipEnd(chip); 1420 if (start == -1 || end == -1) { 1421 return false; 1422 } 1423 return (offset >= start && offset <= end); 1424 } 1425 1426 1427 /** 1428 * Return whether a touch event was inside the delete target of 1429 * a selected chip. It is in the delete target if: 1430 * 1) the x and y points of the event are within the 1431 * delete assset. 1432 * 2) the point tapped would have caused a cursor to appear 1433 * right after the selected chip. 1434 * @return boolean 1435 */ 1436 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1437 // Figure out the bounds of this chip and whether or not 1438 // the user clicked in the X portion. 1439 return chip.isSelected() && offset == getChipEnd(chip); 1440 } 1441 1442 /** 1443 * Remove the chip and any text associated with it from the RecipientEditTextView. 1444 */ 1445 private void removeChip(RecipientChip chip) { 1446 Spannable spannable = getSpannable(); 1447 int spanStart = spannable.getSpanStart(chip); 1448 int spanEnd = spannable.getSpanEnd(chip); 1449 Editable text = getText(); 1450 int toDelete = spanEnd; 1451 boolean wasSelected = chip == mSelectedChip; 1452 // Clear that there is a selected chip before updating any text. 1453 if (wasSelected) { 1454 mSelectedChip = null; 1455 } 1456 // Always remove trailing spaces when removing a chip. 1457 while (toDelete >= 0 && toDelete < text.length() && text.charAt(toDelete) == ' ') { 1458 toDelete++; 1459 } 1460 spannable.removeSpan(chip); 1461 text.delete(spanStart, toDelete); 1462 if (wasSelected) { 1463 clearSelectedChip(); 1464 } 1465 } 1466 1467 /** 1468 * Replace this currently selected chip with a new chip 1469 * that uses the contact data provided. 1470 */ 1471 public void replaceChip(RecipientChip chip, RecipientEntry entry) { 1472 boolean wasSelected = chip == mSelectedChip; 1473 if (wasSelected) { 1474 mSelectedChip = null; 1475 } 1476 int start = getChipStart(chip); 1477 int end = getChipEnd(chip); 1478 getSpannable().removeSpan(chip); 1479 Editable editable = getText(); 1480 CharSequence chipText = createChip(entry, false); 1481 if (start == -1 || end == -1) { 1482 Log.e(TAG, "The chip to replace does not exist but should."); 1483 editable.insert(0, chipText); 1484 } else { 1485 // There may be a space to replace with this chip's new associated 1486 // space. Check for it. 1487 int toReplace = end; 1488 while (toReplace >= 0 && toReplace < editable.length() 1489 && editable.charAt(toReplace) == ' ') { 1490 toReplace++; 1491 } 1492 editable.replace(start, toReplace, chipText); 1493 } 1494 setCursorVisible(true); 1495 if (wasSelected) { 1496 clearSelectedChip(); 1497 } 1498 } 1499 1500 /** 1501 * Handle click events for a chip. When a selected chip receives a click 1502 * event, see if that event was in the delete icon. If so, delete it. 1503 * Otherwise, unselect the chip. 1504 */ 1505 public void onClick(RecipientChip chip, int offset, float x, float y) { 1506 if (chip.isSelected()) { 1507 if (isInDelete(chip, offset, x, y)) { 1508 removeChip(chip); 1509 } else { 1510 clearSelectedChip(); 1511 } 1512 } 1513 } 1514 1515 private boolean chipsPending() { 1516 return mPendingChipsCount > 0 || (mRemovedSpans != null && mRemovedSpans.size() > 0); 1517 } 1518 1519 private class RecipientTextWatcher implements TextWatcher { 1520 @Override 1521 public void afterTextChanged(Editable s) { 1522 // If the text has been set to null or empty, make sure we remove 1523 // all the spans we applied. 1524 if (TextUtils.isEmpty(s)) { 1525 // Remove all the chips spans. 1526 Spannable spannable = getSpannable(); 1527 RecipientChip[] chips = spannable.getSpans(0, getText().length(), 1528 RecipientChip.class); 1529 for (RecipientChip chip : chips) { 1530 spannable.removeSpan(chip); 1531 } 1532 if (mMoreChip != null) { 1533 spannable.removeSpan(mMoreChip); 1534 } 1535 return; 1536 } 1537 // Get whether there are any recipients pending addition to the 1538 // view. If there are, don't do anything in the text watcher. 1539 if (chipsPending()) { 1540 return; 1541 } 1542 if (mSelectedChip != null) { 1543 setCursorVisible(true); 1544 setSelection(getText().length()); 1545 clearSelectedChip(); 1546 } 1547 int length = s.length(); 1548 // Make sure there is content there to parse and that it is 1549 // not just the commit character. 1550 if (length > 1) { 1551 char last; 1552 int end = getSelectionEnd() == 0 ? 0 : getSelectionEnd() - 1; 1553 int len = length() - 1; 1554 if (end != len) { 1555 last = s.charAt(end); 1556 } else { 1557 last = s.charAt(len); 1558 } 1559 if (last == COMMIT_CHAR_SEMICOLON || last == COMMIT_CHAR_COMMA) { 1560 commitByCharacter(); 1561 } else if (last == COMMIT_CHAR_SPACE) { 1562 // Check if this is a valid email address. If it is, 1563 // commit it. 1564 String text = getText().toString(); 1565 int tokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 1566 String sub = text.substring(tokenStart, mTokenizer.findTokenEnd(text, 1567 tokenStart)); 1568 if (mValidator != null && mValidator.isValid(sub)) { 1569 commitByCharacter(); 1570 } 1571 } 1572 } 1573 } 1574 1575 @Override 1576 public void onTextChanged(CharSequence s, int start, int before, int count) { 1577 // Do nothing. 1578 } 1579 1580 @Override 1581 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 1582 } 1583 } 1584 1585 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 1586 private RecipientChip createFreeChip(RecipientEntry entry) { 1587 String displayText = entry.getDestination(); 1588 displayText = (String) mTokenizer.terminateToken(displayText); 1589 try { 1590 return constructChipSpan(entry, -1, false); 1591 } catch (NullPointerException e) { 1592 Log.e(TAG, e.getMessage(), e); 1593 return null; 1594 } 1595 } 1596 1597 @Override 1598 protected Void doInBackground(Void... params) { 1599 if (mIndividualReplacements != null) { 1600 mIndividualReplacements.cancel(true); 1601 } 1602 // For each chip in the list, look up the matching contact. 1603 // If there is a match, replace that chip with the matching 1604 // chip. 1605 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 1606 RecipientChip[] existingChips = getSpannable().getSpans(0, getText().length(), 1607 RecipientChip.class); 1608 for (int i = 0; i < existingChips.length; i++) { 1609 originalRecipients.add(existingChips[i]); 1610 } 1611 if (mRemovedSpans != null) { 1612 originalRecipients.addAll(mRemovedSpans); 1613 } 1614 String[] addresses = new String[originalRecipients.size()]; 1615 for (int i = 0; i < originalRecipients.size(); i++) { 1616 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1617 } 1618 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1619 .getMatchingRecipients(getContext(), addresses); 1620 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 1621 for (final RecipientChip temp : originalRecipients) { 1622 RecipientEntry entry = null; 1623 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1624 && getSpannable().getSpanStart(temp) != -1) { 1625 // Replace this. 1626 entry = createValidatedEntry(entries.get(tokenizeAddress(temp.getEntry() 1627 .getDestination()))); 1628 } 1629 if (entry != null) { 1630 replacements.add(createFreeChip(entry)); 1631 } else { 1632 replacements.add(temp); 1633 } 1634 } 1635 if (replacements != null && replacements.size() > 0) { 1636 mHandler.post(new Runnable() { 1637 @Override 1638 public void run() { 1639 SpannableStringBuilder text = new SpannableStringBuilder(getText() 1640 .toString()); 1641 Editable oldText = getText(); 1642 int start, end; 1643 int i = 0; 1644 for (RecipientChip chip : originalRecipients) { 1645 start = oldText.getSpanStart(chip); 1646 if (start != -1) { 1647 end = oldText.getSpanEnd(chip); 1648 text.removeSpan(chip); 1649 // Leave a spot for the space! 1650 text.setSpan(replacements.get(i), start, end, 1651 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1652 } 1653 i++; 1654 } 1655 Editable editable = getText(); 1656 editable.clear(); 1657 editable.insert(0, text); 1658 originalRecipients.clear(); 1659 } 1660 }); 1661 } 1662 return null; 1663 } 1664 } 1665 1666 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 1667 @SuppressWarnings("unchecked") 1668 @Override 1669 protected Void doInBackground(Object... params) { 1670 // For each chip in the list, look up the matching contact. 1671 // If there is a match, replace that chip with the matching 1672 // chip. 1673 final ArrayList<RecipientChip> originalRecipients = 1674 (ArrayList<RecipientChip>) params[0]; 1675 String[] addresses = new String[originalRecipients.size()]; 1676 for (int i = 0; i < originalRecipients.size(); i++) { 1677 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1678 } 1679 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1680 .getMatchingRecipients(getContext(), addresses); 1681 for (final RecipientChip temp : originalRecipients) { 1682 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1683 && getSpannable().getSpanStart(temp) != -1) { 1684 // Replace this. 1685 final RecipientEntry entry = createValidatedEntry(entries 1686 .get(tokenizeAddress(temp.getEntry().getDestination()))); 1687 if (entry != null) { 1688 mHandler.post(new Runnable() { 1689 @Override 1690 public void run() { 1691 replaceChip(temp, entry); 1692 } 1693 }); 1694 } 1695 } 1696 } 1697 return null; 1698 } 1699 } 1700} 1701