RecipientEditTextView.java revision 77056d7532cd26e869964a52456ef18c96f6cbd7
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.Menu; 49import android.view.MenuItem; 50import android.view.MotionEvent; 51import android.view.View; 52import android.view.ViewParent; 53import android.view.ActionMode.Callback; 54import android.widget.AdapterView; 55import android.widget.AdapterView.OnItemClickListener; 56import android.widget.Filter; 57import android.widget.Filterable; 58import android.widget.ListAdapter; 59import android.widget.ListPopupWindow; 60import android.widget.ListView; 61import android.widget.MultiAutoCompleteTextView; 62import android.widget.ScrollView; 63 64import java.util.Collection; 65import java.util.HashMap; 66import java.util.HashSet; 67import java.util.Set; 68 69import java.util.ArrayList; 70 71/** 72 * RecipientEditTextView is an auto complete text view for use with applications 73 * that use the new Chips UI for addressing a message to recipients. 74 */ 75public class RecipientEditTextView extends MultiAutoCompleteTextView implements 76 OnItemClickListener, Callback, RecipientAlternatesAdapter.OnCheckedItemChangedListener { 77 78 private static final String TAG = "RecipientEditTextView"; 79 80 // TODO: get correct number/ algorithm from with UX. 81 private static final int CHIP_LIMIT = 2; 82 83 private static final int INVALID_CONTACT = -1; 84 85 // TODO: get correct size from UX. 86 private static final float MORE_WIDTH_FACTOR = 0.25f; 87 88 private Drawable mChipBackground = null; 89 90 private Drawable mChipDelete = null; 91 92 private int mChipPadding; 93 94 private Tokenizer mTokenizer; 95 96 private Drawable mChipBackgroundPressed; 97 98 private RecipientChip mSelectedChip; 99 100 private int mAlternatesLayout; 101 102 private Bitmap mDefaultContactPhoto; 103 104 private ImageSpan mMoreChip; 105 106 private int mMoreString; 107 108 109 private final ArrayList<String> mPendingChips = new ArrayList<String>(); 110 111 private float mChipHeight; 112 113 private float mChipFontSize; 114 115 private Validator mValidator; 116 117 private Drawable mInvalidChipBackground; 118 119 private Handler mHandler; 120 121 private static int DISMISS = "dismiss".hashCode(); 122 123 private static final long DISMISS_DELAY = 300; 124 125 private int mPendingChipsCount = 0; 126 127 private static int sSelectedTextColor = -1; 128 129 private static final char COMMIT_CHAR_COMMA = ','; 130 131 private static final char COMMIT_CHAR_SEMICOLON = ';'; 132 133 private static final char COMMIT_CHAR_SPACE = ' '; 134 135 private ListPopupWindow mAlternatesPopup; 136 137 private ArrayList<RecipientChip> mTemporaryRecipients; 138 139 private ArrayList<RecipientChip> mRemovedSpans; 140 141 /** 142 * Used with {@link mAlternatesPopup}. Handles clicks to alternate addresses for a selected chip. 143 */ 144 private OnItemClickListener mAlternatesListener; 145 146 private int mCheckedItem; 147 private TextWatcher mTextWatcher; 148 149 private ScrollView mScrollView; 150 151 private boolean mTried; 152 153 private final Runnable mAddTextWatcher = new Runnable() { 154 @Override 155 public void run() { 156 if (mTextWatcher == null) { 157 mTextWatcher = new RecipientTextWatcher(); 158 addTextChangedListener(mTextWatcher); 159 } 160 } 161 }; 162 163 private IndividualReplacementTask mIndividualReplacements; 164 165 public RecipientEditTextView(Context context, AttributeSet attrs) { 166 super(context, attrs); 167 if (sSelectedTextColor == -1) { 168 sSelectedTextColor = context.getResources().getColor(android.R.color.white); 169 } 170 mAlternatesPopup = new ListPopupWindow(context); 171 mAlternatesListener = new OnItemClickListener() { 172 @Override 173 public void onItemClick(AdapterView<?> adapterView,View view, int position, 174 long rowId) { 175 mAlternatesPopup.setOnItemClickListener(null); 176 replaceChip(mSelectedChip, ((RecipientAlternatesAdapter) adapterView.getAdapter()) 177 .getRecipientEntry(position)); 178 Message delayed = Message.obtain(mHandler, DISMISS); 179 delayed.obj = mAlternatesPopup; 180 mHandler.sendMessageDelayed(delayed, DISMISS_DELAY); 181 clearComposingText(); 182 } 183 }; 184 setSuggestionsEnabled(false); 185 setOnItemClickListener(this); 186 setCustomSelectionActionModeCallback(this); 187 mHandler = new Handler() { 188 @Override 189 public void handleMessage(Message msg) { 190 if (msg.what == DISMISS) { 191 ((ListPopupWindow) msg.obj).dismiss(); 192 return; 193 } 194 super.handleMessage(msg); 195 } 196 }; 197 } 198 199 @Override 200 public <T extends ListAdapter & Filterable> void setAdapter(T adapter) { 201 super.setAdapter(adapter); 202 if (adapter == null) { 203 return; 204 } 205 // Start the filtering process as soon as possible. This will 206 // cause any needed services to be started and make the first filter 207 // query come back more quickly. 208 Filter f = ((Filterable) adapter).getFilter(); 209 f.filter("sara"); 210 } 211 212 @Override 213 public void onSelectionChanged(int start, int end) { 214 // When selection changes, see if it is inside the chips area. 215 // If so, move the cursor back after the chips again. 216 Spannable span = getSpannable(); 217 int textLength = getText().length(); 218 RecipientChip[] chips = span.getSpans(start, textLength, RecipientChip.class); 219 if (chips != null && chips.length > 0) { 220 if (chips != null && chips.length > 0) { 221 // Grab the last chip and set the cursor to after it. 222 setSelection(Math.min(span.getSpanEnd(chips[chips.length - 1]) + 1, textLength)); 223 } 224 } 225 super.onSelectionChanged(start, end); 226 } 227 228 /** 229 * Convenience method: Append the specified text slice to the TextView's 230 * display buffer, upgrading it to BufferType.EDITABLE if it was 231 * not already editable. Commas are excluded as they are added automatically 232 * by the view. 233 */ 234 @Override 235 public void append(CharSequence text, int start, int end) { 236 super.append(text, start, end); 237 if (!TextUtils.isEmpty(text) && TextUtils.getTrimmedLength(text) > 0) { 238 final String displayString = (String) text; 239 int seperatorPos = displayString.indexOf(COMMIT_CHAR_COMMA); 240 if (seperatorPos != 0 && !TextUtils.isEmpty(displayString) 241 && TextUtils.getTrimmedLength(displayString) > 0) { 242 mPendingChipsCount++; 243 mPendingChips.add((String)text); 244 } 245 } 246 } 247 248 @Override 249 public void onFocusChanged(boolean hasFocus, int direction, Rect previous) { 250 if (!hasFocus) { 251 shrink(); 252 // Reset any pending chips as they would have been handled 253 // when the field lost focus. 254 mPendingChipsCount = 0; 255 mPendingChips.clear(); 256 mHandler.post(mAddTextWatcher); 257 } else { 258 expand(); 259 scrollLineIntoView(getLineCount()); 260 } 261 super.onFocusChanged(hasFocus, direction, previous); 262 } 263 264 private void shrink() { 265 if (mSelectedChip != null) { 266 clearSelectedChip(); 267 } else { 268 commitDefault(); 269 } 270 createMoreChip(); 271 } 272 273 private void expand() { 274 removeMoreChip(); 275 setCursorVisible(true); 276 Editable text = getText(); 277 setSelection(text != null && text.length() > 0 ? text.length() : 0); 278 // If there are any temporary chips, try replacing them now that the user 279 // has expanded the field. 280 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0) { 281 new RecipientReplacementTask().execute(); 282 mTemporaryRecipients = null; 283 } 284 } 285 286 private CharSequence ellipsizeText(CharSequence text, TextPaint paint, float maxWidth) { 287 paint.setTextSize(mChipFontSize); 288 if (maxWidth <= 0 && Log.isLoggable(TAG, Log.DEBUG)) { 289 Log.d(TAG, "Max width is negative: " + maxWidth); 290 } 291 return TextUtils.ellipsize(text, paint, maxWidth, 292 TextUtils.TruncateAt.END); 293 } 294 295 private Bitmap createSelectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 296 // Ellipsize the text so that it takes AT MOST the entire width of the 297 // autocomplete text entry area. Make sure to leave space for padding 298 // on the sides. 299 int height = (int) mChipHeight; 300 int deleteWidth = height; 301 CharSequence ellipsizedText = ellipsizeText(contact.getDisplayName(), paint, 302 calculateAvailableWidth(true) - deleteWidth); 303 304 // Make sure there is a minimum chip width so the user can ALWAYS 305 // tap a chip without difficulty. 306 int width = Math.max(deleteWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 307 ellipsizedText.length())) 308 + (mChipPadding * 2) + deleteWidth); 309 310 // Create the background of the chip. 311 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 312 Canvas canvas = new Canvas(tmpBitmap); 313 if (mChipBackgroundPressed != null) { 314 mChipBackgroundPressed.setBounds(0, 0, width, height); 315 mChipBackgroundPressed.draw(canvas); 316 paint.setColor(sSelectedTextColor); 317 // Align the display text with where the user enters text. 318 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, height 319 - Math.abs(height - mChipFontSize)/2, paint); 320 // Make the delete a square. 321 mChipDelete.setBounds(width - deleteWidth, 0, width, height); 322 mChipDelete.draw(canvas); 323 } else { 324 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 325 } 326 return tmpBitmap; 327 } 328 329 330 /** 331 * Get the background drawable for a RecipientChip. 332 */ 333 public Drawable getChipBackground(RecipientEntry contact) { 334 return (mValidator != null && mValidator.isValid(contact.getDestination())) ? 335 mChipBackground : mInvalidChipBackground; 336 } 337 338 private Bitmap createUnselectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 339 // Ellipsize the text so that it takes AT MOST the entire width of the 340 // autocomplete text entry area. Make sure to leave space for padding 341 // on the sides. 342 int height = (int) mChipHeight; 343 int iconWidth = height; 344 CharSequence ellipsizedText = ellipsizeText(contact.getDisplayName(), paint, 345 calculateAvailableWidth(false) - iconWidth); 346 // Make sure there is a minimum chip width so the user can ALWAYS 347 // tap a chip without difficulty. 348 int width = Math.max(iconWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 349 ellipsizedText.length())) 350 + (mChipPadding * 2) + iconWidth); 351 352 // Create the background of the chip. 353 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 354 Canvas canvas = new Canvas(tmpBitmap); 355 Drawable background = getChipBackground(contact); 356 if (background != null) { 357 background.setBounds(0, 0, width, height); 358 background.draw(canvas); 359 360 // Don't draw photos for recipients that have been typed in. 361 if (contact.getContactId() != INVALID_CONTACT) { 362 byte[] photoBytes = contact.getPhotoBytes(); 363 // There may not be a photo yet if anything but the first contact address 364 // was selected. 365 if (photoBytes == null && contact.getPhotoThumbnailUri() != null) { 366 // TODO: cache this in the recipient entry? 367 ((BaseRecipientAdapter) getAdapter()).fetchPhoto(contact, contact 368 .getPhotoThumbnailUri()); 369 photoBytes = contact.getPhotoBytes(); 370 } 371 372 Bitmap photo; 373 if (photoBytes != null) { 374 photo = BitmapFactory.decodeByteArray(photoBytes, 0, photoBytes.length); 375 } else { 376 // TODO: can the scaled down default photo be cached? 377 photo = mDefaultContactPhoto; 378 } 379 // Draw the photo on the left side. 380 Matrix matrix = new Matrix(); 381 RectF src = new RectF(0, 0, photo.getWidth(), photo.getHeight()); 382 RectF dst = new RectF(width - iconWidth, 0, width, height); 383 matrix.setRectToRect(src, dst, Matrix.ScaleToFit.CENTER); 384 canvas.drawBitmap(photo, matrix, paint); 385 } else { 386 // Don't leave any space for the icon. It isn't being drawn. 387 iconWidth = 0; 388 } 389 390 // Align the display text with where the user enters text. 391 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 392 height - Math.abs(height - mChipFontSize) / 2, paint); 393 } else { 394 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 395 } 396 return tmpBitmap; 397 } 398 399 public RecipientChip constructChipSpan(RecipientEntry contact, int offset, boolean pressed) 400 throws NullPointerException { 401 if (mChipBackground == null) { 402 throw new NullPointerException( 403 "Unable to render any chips as setChipDimensions was not called."); 404 } 405 Layout layout = getLayout(); 406 407 TextPaint paint = getPaint(); 408 float defaultSize = paint.getTextSize(); 409 int defaultColor = paint.getColor(); 410 411 Bitmap tmpBitmap; 412 if (pressed) { 413 tmpBitmap = createSelectedChip(contact, paint, layout); 414 415 } else { 416 tmpBitmap = createUnselectedChip(contact, paint, layout); 417 } 418 419 // Pass the full text, un-ellipsized, to the chip. 420 Drawable result = new BitmapDrawable(getResources(), tmpBitmap); 421 result.setBounds(0, 0, tmpBitmap.getWidth(), tmpBitmap.getHeight()); 422 RecipientChip recipientChip = new RecipientChip(result, contact, offset); 423 // Return text to the original size. 424 paint.setTextSize(defaultSize); 425 paint.setColor(defaultColor); 426 return recipientChip; 427 } 428 429 /** 430 * Calculate the bottom of the line the chip will be located on using: 431 * 1) which line the chip appears on 432 * 2) the height of a chip 433 * 3) padding built into the edit text view 434 */ 435 private int calculateOffsetFromBottom(int line, int chipHeight) { 436 // Line offsets start at zero. 437 int actualLine = getLineCount() - (line + 1); 438 return -((actualLine * (chipHeight + getPaddingBottom())) + getPaddingTop()); 439 } 440 441 /** 442 * Get the max amount of space a chip can take up. The formula takes into 443 * account the width of the EditTextView, any view padding, and padding 444 * that will be added to the chip. 445 */ 446 private float calculateAvailableWidth(boolean pressed) { 447 return getWidth() - getPaddingLeft() - getPaddingRight() - (mChipPadding * 2); 448 } 449 450 /** 451 * Set all chip dimensions and resources. This has to be done from the 452 * application as this is a static library. 453 * @param chipBackground 454 * @param chipBackgroundPressed 455 * @param invalidChip 456 * @param chipDelete 457 * @param defaultContact 458 * @param moreResource 459 * @param alternatesLayout 460 * @param chipHeight 461 * @param padding Padding around the text in a chip 462 */ 463 public void setChipDimensions(Drawable chipBackground, Drawable chipBackgroundPressed, 464 Drawable invalidChip, Drawable chipDelete, Bitmap defaultContact, int moreResource, 465 int alternatesLayout, float chipHeight, float padding, 466 float chipFontSize) { 467 mChipBackground = chipBackground; 468 mChipBackgroundPressed = chipBackgroundPressed; 469 mChipDelete = chipDelete; 470 mChipPadding = (int) padding; 471 mAlternatesLayout = alternatesLayout; 472 mDefaultContactPhoto = defaultContact; 473 mMoreString = moreResource; 474 mChipHeight = chipHeight; 475 mChipFontSize = chipFontSize; 476 mInvalidChipBackground = invalidChip; 477 } 478 479 @Override 480 public void onSizeChanged(int width, int height, int oldw, int oldh) { 481 super.onSizeChanged(width, height, oldw, oldh); 482 // Check for any pending tokens created before layout had been completed 483 // on the view. 484 if (width != 0 && height != 0) { 485 if (mPendingChipsCount > 0) { 486 handlePendingChips(); 487 } 488 mPendingChipsCount = 0; 489 mPendingChips.clear(); 490 mHandler.post(mAddTextWatcher); 491 } 492 // Try to find the scroll view parent, if it exists. 493 if (mScrollView == null && !mTried) { 494 ViewParent parent = getParent(); 495 while (parent != null && !(parent instanceof ScrollView)) { 496 parent = parent.getParent(); 497 } 498 if (parent != null) { 499 mScrollView = (ScrollView) parent; 500 } 501 mTried = true; 502 } 503 } 504 505 private void handlePendingChips() { 506 mTemporaryRecipients = new ArrayList<RecipientChip>(mPendingChipsCount); 507 Editable editable = getText(); 508 // Tokenize! 509 for (int i = 0; i < mPendingChips.size(); i++) { 510 String current = mPendingChips.get(i); 511 int tokenStart = editable.toString().indexOf(current); 512 int tokenEnd = tokenStart + current.length(); 513 if (tokenStart >= 0) { 514 // When we have a valid token, include it with the token 515 // to the left. 516 if (tokenEnd < editable.length() - 2 517 && editable.charAt(tokenEnd) == COMMIT_CHAR_COMMA) { 518 tokenEnd++; 519 } 520 createReplacementChip(tokenStart, tokenEnd, editable); 521 } 522 mPendingChipsCount--; 523 } 524 sanitizeSpannable(); 525 if (mTemporaryRecipients != null 526 && mTemporaryRecipients.size() <= RecipientAlternatesAdapter.MAX_LOOKUPS) { 527 if (hasFocus() || mTemporaryRecipients.size() < CHIP_LIMIT) { 528 new RecipientReplacementTask().execute(); 529 mTemporaryRecipients = null; 530 } else { 531 // Create the "more" chip 532 mIndividualReplacements = new IndividualReplacementTask(); 533 mIndividualReplacements.execute(new ArrayList<RecipientChip>(mTemporaryRecipients 534 .subList(0, CHIP_LIMIT))); 535 536 createMoreChip(); 537 } 538 } else { 539 // There are too many recipients to look up, so just fall back to 540 // showing addresses 541 // for all of them. 542 mTemporaryRecipients = null; 543 createMoreChip(); 544 } 545 } 546 547 /** 548 * Remove any characters after the last valid chip. 549 */ 550 private void sanitizeSpannable() { 551 // Find the last chip; eliminate any commit characters after it. 552 RecipientChip[] chips = getRecipients(); 553 if (chips != null && chips.length > 0) { 554 int end; 555 ImageSpan lastSpan; 556 if (mMoreChip != null) { 557 lastSpan = mMoreChip; 558 } else { 559 lastSpan = chips[chips.length - 1]; 560 } 561 end = getSpannable().getSpanEnd(lastSpan); 562 Editable editable = getText(); 563 int length = editable.length(); 564 if (length > end) { 565 // See what characters occur after that and eliminate them. 566 if (Log.isLoggable(TAG, Log.DEBUG)) { 567 Log.d(TAG, "There were extra characters after the last tokenizable entry." 568 + editable); 569 } 570 editable.delete(end + 1, length); 571 } 572 } 573 } 574 575 /** 576 * Create a chip that represents just the email address of a recipient. At some later 577 * point, this chip will be attached to a real contact entry, if one exists. 578 */ 579 private void createReplacementChip(int tokenStart, int tokenEnd, Editable editable) { 580 String token = editable.toString().substring(tokenStart, tokenEnd).trim(); 581 int commitCharIndex = token.indexOf(COMMIT_CHAR_COMMA); 582 if (commitCharIndex == token.length() - 1) { 583 token = token.substring(0, token.length() - 1); 584 } 585 RecipientEntry entry = createTokenizedEntry(token); 586 String displayText = entry.getDestination(); 587 displayText = (String) mTokenizer.terminateToken(displayText); 588 // Always leave a blank space at the end of a chip. 589 int textLength = displayText.length() - 1; 590 SpannableString chipText = new SpannableString(displayText); 591 int end = getSelectionEnd(); 592 int start = mTokenizer.findTokenStart(getText(), end); 593 RecipientChip chip = null; 594 try { 595 chip = constructChipSpan(entry, start, false); 596 chipText.setSpan(chip, 0, textLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 597 } catch (NullPointerException e) { 598 Log.e(TAG, e.getMessage(), e); 599 } 600 601 editable.replace(tokenStart, tokenEnd, chipText); 602 // Add this chip to the list of entries "to replace" 603 if (chip != null) { 604 mTemporaryRecipients.add(chip); 605 } 606 } 607 608 private RecipientEntry createTokenizedEntry(String token) { 609 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(token); 610 String address; 611 if (tokens != null && tokens.length > 0) { 612 address = tokens[0].getAddress(); 613 } else { 614 address = token; 615 } 616 return RecipientEntry.constructFakeEntry(address); 617 } 618 619 @Override 620 public void setTokenizer(Tokenizer tokenizer) { 621 mTokenizer = tokenizer; 622 super.setTokenizer(mTokenizer); 623 } 624 625 @Override 626 public void setValidator(Validator validator) { 627 mValidator = validator; 628 super.setValidator(validator); 629 } 630 631 /** 632 * We cannot use the default mechanism for replaceText. Instead, 633 * we override onItemClickListener so we can get all the associated 634 * contact information including display text, address, and id. 635 */ 636 @Override 637 protected void replaceText(CharSequence text) { 638 return; 639 } 640 641 /** 642 * Dismiss any selected chips when the back key is pressed. 643 */ 644 @Override 645 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 646 if (keyCode == KeyEvent.KEYCODE_BACK) { 647 clearSelectedChip(); 648 } 649 return super.onKeyPreIme(keyCode, event); 650 } 651 652 /** 653 * Monitor key presses in this view to see if the user types 654 * any commit keys, which consist of ENTER, TAB, or DPAD_CENTER. 655 * If the user has entered text that has contact matches and types 656 * a commit key, create a chip from the topmost matching contact. 657 * If the user has entered text that has no contact matches and types 658 * a commit key, then create a chip from the text they have entered. 659 */ 660 @Override 661 public boolean onKeyUp(int keyCode, KeyEvent event) { 662 switch (keyCode) { 663 case KeyEvent.KEYCODE_ENTER: 664 case KeyEvent.KEYCODE_DPAD_CENTER: 665 if (event.hasNoModifiers()) { 666 if (commitDefault()) { 667 return true; 668 } 669 if (mSelectedChip != null) { 670 clearSelectedChip(); 671 return true; 672 } else if (focusNext()) { 673 return true; 674 } 675 } 676 break; 677 case KeyEvent.KEYCODE_TAB: 678 if (event.hasNoModifiers()) { 679 if (mSelectedChip != null) { 680 clearSelectedChip(); 681 } else { 682 commitDefault(); 683 } 684 if (focusNext()) { 685 return true; 686 } 687 } 688 } 689 return super.onKeyUp(keyCode, event); 690 } 691 692 private boolean focusNext() { 693 View next = focusSearch(View.FOCUS_DOWN); 694 if (next != null) { 695 next.requestFocus(); 696 return true; 697 } 698 return false; 699 } 700 701 /** 702 * Create a chip from the default selection. If the popup is showing, the 703 * default is the first item in the popup suggestions list. Otherwise, it is 704 * whatever the user had typed in. End represents where the the tokenizer 705 * should search for a token to turn into a chip. 706 * @return If a chip was created from a real contact. 707 */ 708 private boolean commitDefault() { 709 Editable editable = getText(); 710 int end = getSelectionEnd(); 711 int start = mTokenizer.findTokenStart(editable, end); 712 713 if (shouldCreateChip(start, end)) { 714 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 715 // In the middle of chip; treat this as an edit 716 // and commit the whole token. 717 if (whatEnd != getSelectionEnd()) { 718 handleEdit(start, whatEnd); 719 return true; 720 } 721 return commitChip(start, end , editable); 722 } 723 return false; 724 } 725 726 private void commitByCharacter() { 727 Editable editable = getText(); 728 int end = getSelectionEnd(); 729 int start = mTokenizer.findTokenStart(editable, end); 730 if (shouldCreateChip(start, end)) { 731 commitChip(start, end, editable); 732 } 733 setSelection(getText().length()); 734 } 735 736 private boolean commitChip(int start, int end, Editable editable) { 737 if (getAdapter().getCount() > 0) { 738 // choose the first entry. 739 submitItemAtPosition(0); 740 dismissDropDown(); 741 return true; 742 } else { 743 int tokenEnd = mTokenizer.findTokenEnd(editable, start); 744 String text = editable.toString().substring(start, tokenEnd).trim(); 745 clearComposingText(); 746 if (text != null && text.length() > 0 && !text.equals(" ")) { 747 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 748 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 749 CharSequence chipText = createChip(entry, false); 750 editable.replace(start, end, chipText); 751 dismissDropDown(); 752 return true; 753 } 754 } 755 return false; 756 } 757 758 private boolean shouldCreateChip(int start, int end) { 759 if (hasFocus() && enoughToFilter()) { 760 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 761 if ((chips == null || chips.length == 0)) { 762 return true; 763 } 764 } 765 return false; 766 } 767 768 private void handleEdit(int start, int end) { 769 // This is in the middle of a chip, so select out the whole chip 770 // and commit it. 771 Editable editable = getText(); 772 setSelection(end); 773 String text = getText().toString().substring(start, end); 774 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 775 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 776 CharSequence chipText = createChip(entry, false); 777 editable.replace(start, getSelectionEnd(), chipText); 778 dismissDropDown(); 779 } 780 781 /** 782 * If there is a selected chip, delegate the key events 783 * to the selected chip. 784 */ 785 @Override 786 public boolean onKeyDown(int keyCode, KeyEvent event) { 787 if (mSelectedChip != null && keyCode == KeyEvent.KEYCODE_DEL) { 788 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 789 mAlternatesPopup.dismiss(); 790 } 791 removeChip(mSelectedChip); 792 } 793 794 if (keyCode == KeyEvent.KEYCODE_ENTER && event.hasNoModifiers()) { 795 return true; 796 } 797 798 return super.onKeyDown(keyCode, event); 799 } 800 801 private Spannable getSpannable() { 802 return getText(); 803 } 804 805 private int getChipStart(RecipientChip chip) { 806 return getSpannable().getSpanStart(chip); 807 } 808 809 private int getChipEnd(RecipientChip chip) { 810 return getSpannable().getSpanEnd(chip); 811 } 812 813 /** 814 * Instead of filtering on the entire contents of the edit box, 815 * this subclass method filters on the range from 816 * {@link Tokenizer#findTokenStart} to {@link #getSelectionEnd} 817 * if the length of that range meets or exceeds {@link #getThreshold} 818 * and makes sure that the range is not already a Chip. 819 */ 820 @Override 821 protected void performFiltering(CharSequence text, int keyCode) { 822 if (enoughToFilter()) { 823 int end = getSelectionEnd(); 824 int start = mTokenizer.findTokenStart(text, end); 825 // If this is a RecipientChip, don't filter 826 // on its contents. 827 Spannable span = getSpannable(); 828 RecipientChip[] chips = span.getSpans(start, end, RecipientChip.class); 829 if (chips != null && chips.length > 0) { 830 return; 831 } 832 } 833 super.performFiltering(text, keyCode); 834 } 835 836 private void clearSelectedChip() { 837 if (mSelectedChip != null) { 838 unselectChip(mSelectedChip); 839 mSelectedChip = null; 840 } 841 setCursorVisible(true); 842 } 843 844 /** 845 * Monitor touch events in the RecipientEditTextView. 846 * If the view does not have focus, any tap on the view 847 * will just focus the view. If the view has focus, determine 848 * if the touch target is a recipient chip. If it is and the chip 849 * is not selected, select it and clear any other selected chips. 850 * If it isn't, then select that chip. 851 */ 852 @Override 853 public boolean onTouchEvent(MotionEvent event) { 854 if (!isFocused()) { 855 // Ignore any chip taps until this view is focused. 856 return super.onTouchEvent(event); 857 } 858 859 boolean handled = super.onTouchEvent(event); 860 int action = event.getAction(); 861 boolean chipWasSelected = false; 862 863 if (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_DOWN) { 864 float x = event.getX(); 865 float y = event.getY(); 866 setCursorVisible(false); 867 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 868 RecipientChip currentChip = findChip(offset); 869 if (currentChip != null) { 870 if (action == MotionEvent.ACTION_UP) { 871 if (mSelectedChip != null && mSelectedChip != currentChip) { 872 clearSelectedChip(); 873 mSelectedChip = selectChip(currentChip); 874 } else if (mSelectedChip == null) { 875 // Selection may have moved due to the tap event, 876 // but make sure we correctly reset selection to the 877 // end so that any unfinished chips are committed. 878 setSelection(getText().length()); 879 commitDefault(); 880 mSelectedChip = selectChip(currentChip); 881 if (mSelectedChip != null 882 && mSelectedChip.getEntry().getContactId() == INVALID_CONTACT) { 883 scrollLineIntoView(getLayout().getLineForOffset( 884 getChipStart(mSelectedChip))); 885 } 886 } else { 887 onClick(mSelectedChip, offset, x, y); 888 } 889 } 890 chipWasSelected = true; 891 handled = true; 892 } 893 } 894 if (action == MotionEvent.ACTION_UP && !chipWasSelected) { 895 clearSelectedChip(); 896 } 897 return handled; 898 } 899 900 private void scrollLineIntoView(int line) { 901 if (mScrollView != null) { 902 mScrollView.scrollBy(0, calculateOffsetFromBottom(line, (int) mChipHeight)); 903 } 904 } 905 906 private void showAlternates(RecipientChip currentChip, ListPopupWindow alternatesPopup, 907 int width, Context context) { 908 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 909 int bottom = calculateOffsetFromBottom(line, (int) mChipHeight); 910 // Align the alternates popup with the left side of the View, 911 // regardless of the position of the chip tapped. 912 alternatesPopup.setWidth(width); 913 alternatesPopup.setAnchorView(this); 914 alternatesPopup.setVerticalOffset(bottom); 915 alternatesPopup.setAdapter(createAlternatesAdapter(currentChip)); 916 alternatesPopup.setOnItemClickListener(mAlternatesListener); 917 alternatesPopup.show(); 918 ListView listView = alternatesPopup.getListView(); 919 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 920 // Checked item would be -1 if the adapter has not 921 // loaded the view that should be checked yet. The 922 // variable will be set correctly when onCheckedItemChanged 923 // is called in a separate thread. 924 if (mCheckedItem != -1) { 925 listView.setItemChecked(mCheckedItem, true); 926 mCheckedItem = -1; 927 } 928 } 929 930 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 931 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 932 mAlternatesLayout, this); 933 } 934 935 public void onCheckedItemChanged(int position) { 936 ListView listView = mAlternatesPopup.getListView(); 937 if (listView != null && listView.getCheckedItemCount() == 0) { 938 listView.setItemChecked(position, true); 939 } else { 940 mCheckedItem = position; 941 } 942 } 943 944 // TODO: This algorithm will need a lot of tweaking after more people have used 945 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 946 // what comes before the finger. 947 private int putOffsetInRange(int o) { 948 int offset = o; 949 Editable text = getText(); 950 int length = text.length(); 951 // Remove whitespace from end to find "real end" 952 int realLength = length; 953 for (int i = length - 1; i >= 0; i--) { 954 if (text.charAt(i) == ' ') { 955 realLength--; 956 } else { 957 break; 958 } 959 } 960 961 // If the offset is beyond or at the end of the text, 962 // leave it alone. 963 if (offset >= realLength) { 964 return offset; 965 } 966 Editable editable = getText(); 967 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 968 // Keep walking backward! 969 offset--; 970 } 971 return offset; 972 } 973 974 private int findText(Editable text, int offset) { 975 if (text.charAt(offset) != ' ') { 976 return offset; 977 } 978 return -1; 979 } 980 981 private RecipientChip findChip(int offset) { 982 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 983 // Find the chip that contains this offset. 984 for (int i = 0; i < chips.length; i++) { 985 RecipientChip chip = chips[i]; 986 int start = getChipStart(chip); 987 int end = getChipEnd(chip); 988 if (offset >= start && offset <= end) { 989 return chip; 990 } 991 } 992 return null; 993 } 994 995 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 996 String displayText = entry.getDestination(); 997 displayText = (String) mTokenizer.terminateToken(displayText); 998 // Always leave a blank space at the end of a chip. 999 int textLength = displayText.length() - 1; 1000 SpannableString chipText = new SpannableString(displayText); 1001 int end = getSelectionEnd(); 1002 int start = mTokenizer.findTokenStart(getText(), end); 1003 try { 1004 chipText.setSpan(constructChipSpan(entry, start, pressed), 0, textLength, 1005 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1006 } catch (NullPointerException e) { 1007 Log.e(TAG, e.getMessage(), e); 1008 return null; 1009 } 1010 1011 return chipText; 1012 } 1013 1014 /** 1015 * When an item in the suggestions list has been clicked, create a chip from the 1016 * contact information of the selected item. 1017 */ 1018 @Override 1019 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1020 submitItemAtPosition(position); 1021 } 1022 1023 private void submitItemAtPosition(int position) { 1024 RecipientEntry entry = createValidatedEntry( 1025 (RecipientEntry)getAdapter().getItem(position)); 1026 clearComposingText(); 1027 1028 int end = getSelectionEnd(); 1029 int start = mTokenizer.findTokenStart(getText(), end); 1030 1031 Editable editable = getText(); 1032 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1033 editable.replace(start, end, createChip(entry, false)); 1034 } 1035 1036 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1037 if (item == null) { 1038 return null; 1039 } 1040 final RecipientEntry entry; 1041 // If the display name and the address are the same, or if this is a 1042 // valid contact, but the destination is invalid, then make this a fake 1043 // recipient that is editable. 1044 String destination = item.getDestination(); 1045 if (TextUtils.equals(item.getDisplayName(), destination) 1046 || (mValidator != null && !mValidator.isValid(destination))) { 1047 entry = RecipientEntry.constructFakeEntry(destination); 1048 } else { 1049 entry = item; 1050 } 1051 return entry; 1052 } 1053 1054 /** Returns a collection of contact Id for each chip inside this View. */ 1055 /* package */ Collection<Long> getContactIds() { 1056 final Set<Long> result = new HashSet<Long>(); 1057 RecipientChip[] chips = getRecipients(); 1058 if (chips != null) { 1059 for (RecipientChip chip : chips) { 1060 result.add(chip.getContactId()); 1061 } 1062 } 1063 return result; 1064 } 1065 1066 private RecipientChip[] getRecipients() { 1067 return getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1068 } 1069 1070 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1071 /* package */ Collection<Long> getDataIds() { 1072 final Set<Long> result = new HashSet<Long>(); 1073 RecipientChip [] chips = getRecipients(); 1074 if (chips != null) { 1075 for (RecipientChip chip : chips) { 1076 result.add(chip.getDataId()); 1077 } 1078 } 1079 return result; 1080 } 1081 1082 1083 @Override 1084 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1085 return false; 1086 } 1087 1088 @Override 1089 public void onDestroyActionMode(ActionMode mode) { 1090 } 1091 1092 @Override 1093 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1094 return false; 1095 } 1096 1097 /** 1098 * No chips are selectable. 1099 */ 1100 @Override 1101 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1102 return false; 1103 } 1104 1105 /** 1106 * Create the more chip. The more chip is text that replaces any chips that 1107 * do not fit in the pre-defined available space when the 1108 * RecipientEditTextView loses focus. 1109 */ 1110 private void createMoreChip() { 1111 RecipientChip[] recipients = getRecipients(); 1112 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1113 mMoreChip = null; 1114 return; 1115 } 1116 int numRecipients = recipients.length; 1117 int overage = numRecipients - CHIP_LIMIT; 1118 Editable text = getText(); 1119 // TODO: get the correct size from visual design. 1120 int width = (int) Math.floor(getWidth() * MORE_WIDTH_FACTOR); 1121 int height = getLineHeight(); 1122 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1123 Canvas canvas = new Canvas(drawable); 1124 String moreText = getResources().getString(mMoreString, overage); 1125 canvas.drawText(moreText, 0, moreText.length(), 0, height - getLayout().getLineDescent(0), 1126 getPaint()); 1127 1128 Drawable result = new BitmapDrawable(getResources(), drawable); 1129 result.setBounds(0, 0, width, height); 1130 ImageSpan moreSpan = new ImageSpan(result); 1131 Spannable spannable = getSpannable(); 1132 // Remove the overage chips. 1133 if (recipients == null || recipients.length == 0) { 1134 Log.w(TAG, 1135 "We have recipients. Tt should not be possible to have zero RecipientChips."); 1136 mMoreChip = null; 1137 return; 1138 } 1139 mRemovedSpans = new ArrayList<RecipientChip>(); 1140 int totalReplaceStart = 0; 1141 int totalReplaceEnd = 0; 1142 for (int i = numRecipients - overage; i < recipients.length; i++) { 1143 mRemovedSpans.add(recipients[i]); 1144 if (i == numRecipients - overage) { 1145 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1146 } 1147 if (i == recipients.length - 1) { 1148 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1149 } 1150 if (mTemporaryRecipients != null && !mTemporaryRecipients.contains(recipients[i])) { 1151 recipients[i].storeChipStart(spannable.getSpanStart(recipients[i])); 1152 recipients[i].storeChipEnd(spannable.getSpanEnd(recipients[i])); 1153 } 1154 spannable.removeSpan(recipients[i]); 1155 } 1156 // TODO: why would these ever be backwards? 1157 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1158 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1159 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1160 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1161 text.replace(start, end, chipText); 1162 mMoreChip = moreSpan; 1163 } 1164 1165 /** 1166 * Replace the more chip, if it exists, with all of the recipient chips it had 1167 * replaced when the RecipientEditTextView gains focus. 1168 */ 1169 private void removeMoreChip() { 1170 if (mMoreChip != null) { 1171 Spannable span = getSpannable(); 1172 span.removeSpan(mMoreChip); 1173 mMoreChip = null; 1174 // Re-add the spans that were removed. 1175 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1176 // Recreate each removed span. 1177 Editable editable = getText(); 1178 SpannableString associatedText; 1179 for (RecipientChip chip : mRemovedSpans) { 1180 int chipStart = chip.getStoredChipStart(); 1181 int chipEnd; 1182 String token; 1183 if (chipStart == -1) { 1184 // Need to find the location of the chip, again. 1185 token = (String)mTokenizer.terminateToken(chip.getEntry().getDestination()); 1186 chipStart = editable.toString().indexOf(token); 1187 chipEnd = chipStart + token.length(); 1188 } else { 1189 chipEnd = Math.min(editable.length(), chip.getStoredChipEnd()); 1190 } 1191 if (Log.isLoggable(TAG, Log.DEBUG) && chipEnd != chip.getStoredChipEnd()) { 1192 Log.d(TAG, 1193 "Unexpectedly, the chip ended after the end of the editable text. " 1194 + "Chip End " + chip.getStoredChipEnd() 1195 + "Editable length " + editable.length()); 1196 } 1197 associatedText = new SpannableString(editable.subSequence(chipStart, chipEnd)); 1198 associatedText.setSpan(chip, 0, associatedText.length(), 1199 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1200 editable.replace(chipStart, chipEnd, associatedText); 1201 } 1202 mRemovedSpans.clear(); 1203 } 1204 } 1205 } 1206 1207 /** 1208 * Show specified chip as selected. If the RecipientChip is just an email address, 1209 * selecting the chip will take the contents of the chip and place it at 1210 * the end of the RecipientEditTextView for inline editing. If the 1211 * RecipientChip is a complete contact, then selecting the chip 1212 * will change the background color of the chip, show the delete icon, 1213 * and a popup window with the address in use highlighted and any other 1214 * alternate addresses for the contact. 1215 * @param currentChip Chip to select. 1216 * @return A RecipientChip in the selected state or null if the chip 1217 * just contained an email address. 1218 */ 1219 public RecipientChip selectChip(RecipientChip currentChip) { 1220 if (currentChip.getContactId() != INVALID_CONTACT) { 1221 int start = getChipStart(currentChip); 1222 int end = getChipEnd(currentChip); 1223 getSpannable().removeSpan(currentChip); 1224 RecipientChip newChip; 1225 CharSequence displayText = mTokenizer.terminateToken(currentChip.getValue()); 1226 // Always leave a blank space at the end of a chip. 1227 int textLength = displayText.length() - 1; 1228 SpannableString chipText = new SpannableString(displayText); 1229 try { 1230 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1231 chipText.setSpan(newChip, 0, textLength, 1232 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1233 } catch (NullPointerException e) { 1234 Log.e(TAG, e.getMessage(), e); 1235 return null; 1236 } 1237 Editable editable = getText(); 1238 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1239 if (start == -1 || end == -1) { 1240 Log.d(TAG, "The chip being selected no longer exists but should."); 1241 } else { 1242 editable.replace(start, end, chipText); 1243 } 1244 newChip.setSelected(true); 1245 showAlternates(newChip, mAlternatesPopup, getWidth(), getContext()); 1246 return newChip; 1247 } else { 1248 CharSequence text = currentChip.getValue(); 1249 Editable editable = getText(); 1250 removeChip(currentChip); 1251 editable.append(text); 1252 setCursorVisible(true); 1253 setSelection(editable.length()); 1254 return null; 1255 } 1256 } 1257 1258 1259 /** 1260 * Remove selection from this chip. Unselecting a RecipientChip will render 1261 * the chip without a delete icon and with an unfocused background. This 1262 * is called when the RecipientChip no longer has focus. 1263 */ 1264 public void unselectChip(RecipientChip chip) { 1265 int start = getChipStart(chip); 1266 int end = getChipEnd(chip); 1267 Editable editable = getText(); 1268 mSelectedChip = null; 1269 if (start == -1 || end == -1) { 1270 Log.e(TAG, "The chip being unselected no longer exists but should."); 1271 } else { 1272 getSpannable().removeSpan(chip); 1273 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1274 editable.replace(start, end, createChip(chip.getEntry(), false)); 1275 } 1276 setCursorVisible(true); 1277 setSelection(editable.length()); 1278 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1279 mAlternatesPopup.dismiss(); 1280 } 1281 } 1282 1283 1284 /** 1285 * Return whether this chip contains the position passed in. 1286 */ 1287 public boolean matchesChip(RecipientChip chip, int offset) { 1288 int start = getChipStart(chip); 1289 int end = getChipEnd(chip); 1290 if (start == -1 || end == -1) { 1291 return false; 1292 } 1293 return (offset >= start && offset <= end); 1294 } 1295 1296 1297 /** 1298 * Return whether a touch event was inside the delete target of 1299 * a selected chip. It is in the delete target if: 1300 * 1) the x and y points of the event are within the 1301 * delete assset. 1302 * 2) the point tapped would have caused a cursor to appear 1303 * right after the selected chip. 1304 * @return boolean 1305 */ 1306 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1307 // Figure out the bounds of this chip and whether or not 1308 // the user clicked in the X portion. 1309 return chip.isSelected() && offset == getChipEnd(chip); 1310 } 1311 1312 /** 1313 * Remove the chip and any text associated with it from the RecipientEditTextView. 1314 */ 1315 private void removeChip(RecipientChip chip) { 1316 Spannable spannable = getSpannable(); 1317 int spanStart = spannable.getSpanStart(chip); 1318 int spanEnd = spannable.getSpanEnd(chip); 1319 Editable text = getText(); 1320 int toDelete = spanEnd; 1321 boolean wasSelected = chip == mSelectedChip; 1322 // Clear that there is a selected chip before updating any text. 1323 if (wasSelected) { 1324 mSelectedChip = null; 1325 } 1326 // Always remove trailing spaces when removing a chip. 1327 while (toDelete >= 0 && toDelete < text.length() - 1 && text.charAt(toDelete) == ' ') { 1328 toDelete++; 1329 } 1330 spannable.removeSpan(chip); 1331 text.delete(spanStart, toDelete); 1332 if (wasSelected) { 1333 clearSelectedChip(); 1334 } 1335 } 1336 1337 /** 1338 * Replace this currently selected chip with a new chip 1339 * that uses the contact data provided. 1340 */ 1341 public void replaceChip(RecipientChip chip, RecipientEntry entry) { 1342 boolean wasSelected = chip == mSelectedChip; 1343 if (wasSelected) { 1344 mSelectedChip = null; 1345 } 1346 int start = getChipStart(chip); 1347 int end = getChipEnd(chip); 1348 getSpannable().removeSpan(chip); 1349 Editable editable = getText(); 1350 CharSequence chipText = createChip(entry, false); 1351 if (start == -1 || end == -1) { 1352 Log.e(TAG, "The chip to replace does not exist but should."); 1353 editable.insert(0, chipText); 1354 } else { 1355 editable.replace(start, end, chipText); 1356 } 1357 setCursorVisible(true); 1358 if (wasSelected) { 1359 clearSelectedChip(); 1360 } 1361 } 1362 1363 /** 1364 * Handle click events for a chip. When a selected chip receives a click 1365 * event, see if that event was in the delete icon. If so, delete it. 1366 * Otherwise, unselect the chip. 1367 */ 1368 public void onClick(RecipientChip chip, int offset, float x, float y) { 1369 if (chip.isSelected()) { 1370 if (isInDelete(chip, offset, x, y)) { 1371 removeChip(chip); 1372 } else { 1373 clearSelectedChip(); 1374 } 1375 } 1376 } 1377 1378 private boolean chipsPending() { 1379 return mPendingChipsCount > 0 || (mRemovedSpans != null && mRemovedSpans.size() > 0); 1380 } 1381 1382 private class RecipientTextWatcher implements TextWatcher { 1383 @Override 1384 public void afterTextChanged(Editable s) { 1385 // Get whether there are any recipients pending addition to the view. 1386 // If there are, don't do anything in the text watcher. 1387 if (chipsPending()) { 1388 return; 1389 } 1390 if (mSelectedChip != null) { 1391 setCursorVisible(true); 1392 setSelection(getText().length()); 1393 clearSelectedChip(); 1394 } 1395 int length = s.length(); 1396 // Make sure there is content there to parse and that it is 1397 // not just the commit character. 1398 if (length > 1) { 1399 char last; 1400 int end = getSelectionEnd() == 0 ? 0 : getSelectionEnd() - 1; 1401 int len = length() - 1; 1402 if (end != len) { 1403 last = s.charAt(end); 1404 } else { 1405 last = s.charAt(len); 1406 } 1407 if (last == COMMIT_CHAR_SEMICOLON || last == COMMIT_CHAR_COMMA) { 1408 commitByCharacter(); 1409 } else if (last == COMMIT_CHAR_SPACE) { 1410 // Check if this is a valid email address. If it is, 1411 // commit it. 1412 String text = getText().toString(); 1413 int tokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 1414 String sub = text.substring(tokenStart, mTokenizer.findTokenEnd(text, 1415 tokenStart)); 1416 if (mValidator != null && mValidator.isValid(sub)) { 1417 commitByCharacter(); 1418 } 1419 } 1420 } 1421 } 1422 1423 @Override 1424 public void onTextChanged(CharSequence s, int start, int before, int count) { 1425 } 1426 1427 @Override 1428 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 1429 } 1430 } 1431 1432 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 1433 private RecipientChip createFreeChip(RecipientEntry entry) { 1434 String displayText = entry.getDestination(); 1435 displayText = (String) mTokenizer.terminateToken(displayText); 1436 try { 1437 return constructChipSpan(entry, -1, false); 1438 } catch (NullPointerException e) { 1439 Log.e(TAG, e.getMessage(), e); 1440 return null; 1441 } 1442 } 1443 1444 @Override 1445 protected Void doInBackground(Void... params) { 1446 if (mIndividualReplacements != null) { 1447 mIndividualReplacements.cancel(true); 1448 } 1449 // For each chip in the list, look up the matching contact. 1450 // If there is a match, replace that chip with the matching 1451 // chip. 1452 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 1453 RecipientChip[] existingChips = getSpannable().getSpans(0, getText().length(), 1454 RecipientChip.class); 1455 for (int i = 0; i < existingChips.length; i++) { 1456 originalRecipients.add(existingChips[i]); 1457 } 1458 if (mRemovedSpans != null) { 1459 originalRecipients.addAll(mRemovedSpans); 1460 } 1461 String[] addresses = new String[originalRecipients.size()]; 1462 for (int i = 0; i < originalRecipients.size(); i++) { 1463 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1464 } 1465 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1466 .getMatchingRecipients(getContext(), addresses); 1467 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 1468 for (final RecipientChip temp : originalRecipients) { 1469 RecipientEntry entry = null; 1470 if (temp.getEntry().getContactId() == INVALID_CONTACT 1471 && getSpannable().getSpanStart(temp) != -1) { 1472 // Replace this. 1473 entry = createValidatedEntry(entries.get(temp.getEntry().getDestination())); 1474 } 1475 if (entry != null) { 1476 replacements.add(createFreeChip(entry)); 1477 } else { 1478 replacements.add(temp); 1479 } 1480 } 1481 if (replacements != null && replacements.size() > 0) { 1482 mHandler.post(new Runnable() { 1483 @Override 1484 public void run() { 1485 SpannableStringBuilder text = new SpannableStringBuilder(getText() 1486 .toString()); 1487 Editable oldText = getText(); 1488 SpannableString chipText; 1489 int start, end; 1490 int i = 0; 1491 for (RecipientChip chip : originalRecipients) { 1492 start = oldText.getSpanStart(chip); 1493 if (start != -1) { 1494 end = oldText.getSpanEnd(chip); 1495 chipText = new SpannableString(text.subSequence(start, end)); 1496 chipText.setSpan(replacements.get(i), 0, end - start, 1497 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1498 text.removeSpan(chip); 1499 text.replace(start, end, chipText); 1500 } 1501 i++; 1502 } 1503 Editable editable = getText(); 1504 editable.clear(); 1505 editable.insert(0, text); 1506 originalRecipients.clear(); 1507 } 1508 }); 1509 } 1510 return null; 1511 } 1512 } 1513 1514 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 1515 @SuppressWarnings("unchecked") 1516 @Override 1517 protected Void doInBackground(Object... params) { 1518 // For each chip in the list, look up the matching contact. 1519 // If there is a match, replace that chip with the matching 1520 // chip. 1521 final ArrayList<RecipientChip> originalRecipients = 1522 (ArrayList<RecipientChip>) params[0]; 1523 String[] addresses = new String[originalRecipients.size()]; 1524 for (int i = 0; i < originalRecipients.size(); i++) { 1525 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1526 } 1527 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1528 .getMatchingRecipients(getContext(), addresses); 1529 for (final RecipientChip temp : originalRecipients) { 1530 if (temp.getEntry().getContactId() == INVALID_CONTACT 1531 && getSpannable().getSpanStart(temp) != -1) { 1532 // Replace this. 1533 final RecipientEntry entry = createValidatedEntry(entries.get(temp.getEntry() 1534 .getDestination())); 1535 if (entry != null) { 1536 mHandler.post(new Runnable() { 1537 @Override 1538 public void run() { 1539 replaceChip(temp, entry); 1540 } 1541 }); 1542 } 1543 } 1544 } 1545 return null; 1546 } 1547 } 1548} 1549