RecipientEditTextView.java revision a74f40dc1073117349d1d39b7c8396a39d24f57f
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 Editable editable = getText(); 269 int end = getSelectionEnd(); 270 int start = mTokenizer.findTokenStart(editable, end); 271 272 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 273 // In the middle of chip; treat this as an edit 274 // and commit the whole token. 275 if (whatEnd != getSelectionEnd()) { 276 handleEdit(start, whatEnd); 277 return; 278 } 279 commitChip(start, end, editable); 280 } 281 createMoreChip(); 282 } 283 284 private void expand() { 285 removeMoreChip(); 286 setCursorVisible(true); 287 Editable text = getText(); 288 setSelection(text != null && text.length() > 0 ? text.length() : 0); 289 // If there are any temporary chips, try replacing them now that the user 290 // has expanded the field. 291 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0) { 292 new RecipientReplacementTask().execute(); 293 mTemporaryRecipients = null; 294 } 295 } 296 297 private CharSequence ellipsizeText(CharSequence text, TextPaint paint, float maxWidth) { 298 paint.setTextSize(mChipFontSize); 299 if (maxWidth <= 0 && Log.isLoggable(TAG, Log.DEBUG)) { 300 Log.d(TAG, "Max width is negative: " + maxWidth); 301 } 302 return TextUtils.ellipsize(text, paint, maxWidth, 303 TextUtils.TruncateAt.END); 304 } 305 306 private Bitmap createSelectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 307 // Ellipsize the text so that it takes AT MOST the entire width of the 308 // autocomplete text entry area. Make sure to leave space for padding 309 // on the sides. 310 int height = (int) mChipHeight; 311 int deleteWidth = height; 312 CharSequence ellipsizedText = ellipsizeText(contact.getDisplayName(), paint, 313 calculateAvailableWidth(true) - deleteWidth); 314 315 // Make sure there is a minimum chip width so the user can ALWAYS 316 // tap a chip without difficulty. 317 int width = Math.max(deleteWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 318 ellipsizedText.length())) 319 + (mChipPadding * 2) + deleteWidth); 320 321 // Create the background of the chip. 322 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 323 Canvas canvas = new Canvas(tmpBitmap); 324 if (mChipBackgroundPressed != null) { 325 mChipBackgroundPressed.setBounds(0, 0, width, height); 326 mChipBackgroundPressed.draw(canvas); 327 paint.setColor(sSelectedTextColor); 328 // Align the display text with where the user enters text. 329 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, height 330 - Math.abs(height - mChipFontSize)/2, paint); 331 // Make the delete a square. 332 mChipDelete.setBounds(width - deleteWidth, 0, width, height); 333 mChipDelete.draw(canvas); 334 } else { 335 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 336 } 337 return tmpBitmap; 338 } 339 340 341 /** 342 * Get the background drawable for a RecipientChip. 343 */ 344 public Drawable getChipBackground(RecipientEntry contact) { 345 return (mValidator != null && mValidator.isValid(contact.getDestination())) ? 346 mChipBackground : mInvalidChipBackground; 347 } 348 349 private Bitmap createUnselectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 350 // Ellipsize the text so that it takes AT MOST the entire width of the 351 // autocomplete text entry area. Make sure to leave space for padding 352 // on the sides. 353 int height = (int) mChipHeight; 354 int iconWidth = height; 355 CharSequence ellipsizedText = ellipsizeText(contact.getDisplayName(), paint, 356 calculateAvailableWidth(false) - iconWidth); 357 // Make sure there is a minimum chip width so the user can ALWAYS 358 // tap a chip without difficulty. 359 int width = Math.max(iconWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 360 ellipsizedText.length())) 361 + (mChipPadding * 2) + iconWidth); 362 363 // Create the background of the chip. 364 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 365 Canvas canvas = new Canvas(tmpBitmap); 366 Drawable background = getChipBackground(contact); 367 if (background != null) { 368 background.setBounds(0, 0, width, height); 369 background.draw(canvas); 370 371 // Don't draw photos for recipients that have been typed in. 372 if (contact.getContactId() != INVALID_CONTACT) { 373 byte[] photoBytes = contact.getPhotoBytes(); 374 // There may not be a photo yet if anything but the first contact address 375 // was selected. 376 if (photoBytes == null && contact.getPhotoThumbnailUri() != null) { 377 // TODO: cache this in the recipient entry? 378 ((BaseRecipientAdapter) getAdapter()).fetchPhoto(contact, contact 379 .getPhotoThumbnailUri()); 380 photoBytes = contact.getPhotoBytes(); 381 } 382 383 Bitmap photo; 384 if (photoBytes != null) { 385 photo = BitmapFactory.decodeByteArray(photoBytes, 0, photoBytes.length); 386 } else { 387 // TODO: can the scaled down default photo be cached? 388 photo = mDefaultContactPhoto; 389 } 390 // Draw the photo on the left side. 391 Matrix matrix = new Matrix(); 392 RectF src = new RectF(0, 0, photo.getWidth(), photo.getHeight()); 393 RectF dst = new RectF(width - iconWidth, 0, width, height); 394 matrix.setRectToRect(src, dst, Matrix.ScaleToFit.CENTER); 395 canvas.drawBitmap(photo, matrix, paint); 396 } else { 397 // Don't leave any space for the icon. It isn't being drawn. 398 iconWidth = 0; 399 } 400 401 // Align the display text with where the user enters text. 402 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 403 height - Math.abs(height - mChipFontSize) / 2, paint); 404 } else { 405 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 406 } 407 return tmpBitmap; 408 } 409 410 public RecipientChip constructChipSpan(RecipientEntry contact, int offset, boolean pressed) 411 throws NullPointerException { 412 if (mChipBackground == null) { 413 throw new NullPointerException( 414 "Unable to render any chips as setChipDimensions was not called."); 415 } 416 Layout layout = getLayout(); 417 418 TextPaint paint = getPaint(); 419 float defaultSize = paint.getTextSize(); 420 int defaultColor = paint.getColor(); 421 422 Bitmap tmpBitmap; 423 if (pressed) { 424 tmpBitmap = createSelectedChip(contact, paint, layout); 425 426 } else { 427 tmpBitmap = createUnselectedChip(contact, paint, layout); 428 } 429 430 // Pass the full text, un-ellipsized, to the chip. 431 Drawable result = new BitmapDrawable(getResources(), tmpBitmap); 432 result.setBounds(0, 0, tmpBitmap.getWidth(), tmpBitmap.getHeight()); 433 RecipientChip recipientChip = new RecipientChip(result, contact, offset); 434 // Return text to the original size. 435 paint.setTextSize(defaultSize); 436 paint.setColor(defaultColor); 437 return recipientChip; 438 } 439 440 /** 441 * Calculate the bottom of the line the chip will be located on using: 442 * 1) which line the chip appears on 443 * 2) the height of a chip 444 * 3) padding built into the edit text view 445 */ 446 private int calculateOffsetFromBottom(int line) { 447 // Line offsets start at zero. 448 int actualLine = getLineCount() - (line + 1); 449 return -((actualLine * ((int)mChipHeight) + getPaddingBottom()) + getPaddingTop()); 450 } 451 452 /** 453 * Get the max amount of space a chip can take up. The formula takes into 454 * account the width of the EditTextView, any view padding, and padding 455 * that will be added to the chip. 456 */ 457 private float calculateAvailableWidth(boolean pressed) { 458 return getWidth() - getPaddingLeft() - getPaddingRight() - (mChipPadding * 2); 459 } 460 461 /** 462 * Set all chip dimensions and resources. This has to be done from the 463 * application as this is a static library. 464 * @param chipBackground 465 * @param chipBackgroundPressed 466 * @param invalidChip 467 * @param chipDelete 468 * @param defaultContact 469 * @param moreResource 470 * @param alternatesLayout 471 * @param chipHeight 472 * @param padding Padding around the text in a chip 473 */ 474 public void setChipDimensions(Drawable chipBackground, Drawable chipBackgroundPressed, 475 Drawable invalidChip, Drawable chipDelete, Bitmap defaultContact, int moreResource, 476 int alternatesLayout, float chipHeight, float padding, 477 float chipFontSize) { 478 mChipBackground = chipBackground; 479 mChipBackgroundPressed = chipBackgroundPressed; 480 mChipDelete = chipDelete; 481 mChipPadding = (int) padding; 482 mAlternatesLayout = alternatesLayout; 483 mDefaultContactPhoto = defaultContact; 484 mMoreString = moreResource; 485 mChipHeight = chipHeight; 486 mChipFontSize = chipFontSize; 487 mInvalidChipBackground = invalidChip; 488 } 489 490 @Override 491 public void onSizeChanged(int width, int height, int oldw, int oldh) { 492 super.onSizeChanged(width, height, oldw, oldh); 493 // Check for any pending tokens created before layout had been completed 494 // on the view. 495 if (width != 0 && height != 0) { 496 if (mPendingChipsCount > 0) { 497 handlePendingChips(); 498 } 499 mPendingChipsCount = 0; 500 mPendingChips.clear(); 501 mHandler.post(mAddTextWatcher); 502 } 503 // Try to find the scroll view parent, if it exists. 504 if (mScrollView == null && !mTried) { 505 ViewParent parent = getParent(); 506 while (parent != null && !(parent instanceof ScrollView)) { 507 parent = parent.getParent(); 508 } 509 if (parent != null) { 510 mScrollView = (ScrollView) parent; 511 } 512 mTried = true; 513 } 514 } 515 516 private void handlePendingChips() { 517 mTemporaryRecipients = new ArrayList<RecipientChip>(mPendingChipsCount); 518 Editable editable = getText(); 519 // Tokenize! 520 for (int i = 0; i < mPendingChips.size(); i++) { 521 String current = mPendingChips.get(i); 522 int tokenStart = editable.toString().indexOf(current); 523 int tokenEnd = tokenStart + current.length(); 524 if (tokenStart >= 0) { 525 // When we have a valid token, include it with the token 526 // to the left. 527 if (tokenEnd < editable.length() - 2 528 && editable.charAt(tokenEnd) == COMMIT_CHAR_COMMA) { 529 tokenEnd++; 530 } 531 createReplacementChip(tokenStart, tokenEnd, editable); 532 } 533 mPendingChipsCount--; 534 } 535 sanitizeSpannable(); 536 if (mTemporaryRecipients != null 537 && mTemporaryRecipients.size() <= RecipientAlternatesAdapter.MAX_LOOKUPS) { 538 if (hasFocus() || mTemporaryRecipients.size() < CHIP_LIMIT) { 539 new RecipientReplacementTask().execute(); 540 mTemporaryRecipients = null; 541 } else { 542 // Create the "more" chip 543 mIndividualReplacements = new IndividualReplacementTask(); 544 mIndividualReplacements.execute(new ArrayList<RecipientChip>(mTemporaryRecipients 545 .subList(0, CHIP_LIMIT))); 546 547 createMoreChip(); 548 } 549 } else { 550 // There are too many recipients to look up, so just fall back to 551 // showing addresses for all of them. 552 mTemporaryRecipients = null; 553 createMoreChip(); 554 } 555 } 556 557 /** 558 * Remove any characters after the last valid chip. 559 */ 560 private void sanitizeSpannable() { 561 // Find the last chip; eliminate any commit characters after it. 562 RecipientChip[] chips = getRecipients(); 563 if (chips != null && chips.length > 0) { 564 int end; 565 ImageSpan lastSpan; 566 if (mMoreChip != null) { 567 lastSpan = mMoreChip; 568 } else { 569 lastSpan = chips[chips.length - 1]; 570 } 571 end = getSpannable().getSpanEnd(lastSpan); 572 Editable editable = getText(); 573 int length = editable.length(); 574 if (length > end) { 575 // See what characters occur after that and eliminate them. 576 if (Log.isLoggable(TAG, Log.DEBUG)) { 577 Log.d(TAG, "There were extra characters after the last tokenizable entry." 578 + editable); 579 } 580 editable.delete(end + 1, length); 581 } 582 } 583 } 584 585 /** 586 * Create a chip that represents just the email address of a recipient. At some later 587 * point, this chip will be attached to a real contact entry, if one exists. 588 */ 589 private void createReplacementChip(int tokenStart, int tokenEnd, Editable editable) { 590 String token = editable.toString().substring(tokenStart, tokenEnd); 591 int commitCharIndex = token.indexOf(COMMIT_CHAR_COMMA); 592 if (commitCharIndex == token.length() - 1) { 593 token = token.substring(0, token.length() - 1); 594 } 595 RecipientEntry entry = createTokenizedEntry(token); 596 String displayText = entry.getDestination(); 597 displayText = (String) mTokenizer.terminateToken(displayText); 598 // Always leave a blank space at the end of a chip. 599 int textLength = displayText.length() - 1; 600 SpannableString chipText = new SpannableString(displayText); 601 int end = getSelectionEnd(); 602 int start = mTokenizer.findTokenStart(getText(), end); 603 RecipientChip chip = null; 604 try { 605 chip = constructChipSpan(entry, start, false); 606 chipText.setSpan(chip, 0, textLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 607 } catch (NullPointerException e) { 608 Log.e(TAG, e.getMessage(), e); 609 } 610 611 editable.replace(tokenStart, tokenEnd, chipText); 612 // Add this chip to the list of entries "to replace" 613 if (chip != null) { 614 mTemporaryRecipients.add(chip); 615 } 616 } 617 618 private RecipientEntry createTokenizedEntry(String token) { 619 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(token); 620 String address; 621 if (tokens != null && tokens.length > 0) { 622 address = tokens[0].getAddress(); 623 } else { 624 address = token; 625 } 626 return RecipientEntry.constructFakeEntry(address); 627 } 628 629 @Override 630 public void setTokenizer(Tokenizer tokenizer) { 631 mTokenizer = tokenizer; 632 super.setTokenizer(mTokenizer); 633 } 634 635 @Override 636 public void setValidator(Validator validator) { 637 mValidator = validator; 638 super.setValidator(validator); 639 } 640 641 /** 642 * We cannot use the default mechanism for replaceText. Instead, 643 * we override onItemClickListener so we can get all the associated 644 * contact information including display text, address, and id. 645 */ 646 @Override 647 protected void replaceText(CharSequence text) { 648 return; 649 } 650 651 /** 652 * Dismiss any selected chips when the back key is pressed. 653 */ 654 @Override 655 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 656 if (keyCode == KeyEvent.KEYCODE_BACK) { 657 clearSelectedChip(); 658 } 659 return super.onKeyPreIme(keyCode, event); 660 } 661 662 /** 663 * Monitor key presses in this view to see if the user types 664 * any commit keys, which consist of ENTER, TAB, or DPAD_CENTER. 665 * If the user has entered text that has contact matches and types 666 * a commit key, create a chip from the topmost matching contact. 667 * If the user has entered text that has no contact matches and types 668 * a commit key, then create a chip from the text they have entered. 669 */ 670 @Override 671 public boolean onKeyUp(int keyCode, KeyEvent event) { 672 switch (keyCode) { 673 case KeyEvent.KEYCODE_ENTER: 674 case KeyEvent.KEYCODE_DPAD_CENTER: 675 if (event.hasNoModifiers()) { 676 if (commitDefault()) { 677 return true; 678 } 679 if (mSelectedChip != null) { 680 clearSelectedChip(); 681 return true; 682 } else if (focusNext()) { 683 return true; 684 } 685 } 686 break; 687 case KeyEvent.KEYCODE_TAB: 688 if (event.hasNoModifiers()) { 689 if (mSelectedChip != null) { 690 clearSelectedChip(); 691 } else { 692 commitDefault(); 693 } 694 if (focusNext()) { 695 return true; 696 } 697 } 698 } 699 return super.onKeyUp(keyCode, event); 700 } 701 702 private boolean focusNext() { 703 View next = focusSearch(View.FOCUS_DOWN); 704 if (next != null) { 705 next.requestFocus(); 706 return true; 707 } 708 return false; 709 } 710 711 /** 712 * Create a chip from the default selection. If the popup is showing, the 713 * default is the first item in the popup suggestions list. Otherwise, it is 714 * whatever the user had typed in. End represents where the the tokenizer 715 * should search for a token to turn into a chip. 716 * @return If a chip was created from a real contact. 717 */ 718 private boolean commitDefault() { 719 Editable editable = getText(); 720 int end = getSelectionEnd(); 721 int start = mTokenizer.findTokenStart(editable, end); 722 723 if (shouldCreateChip(start, end)) { 724 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 725 // In the middle of chip; treat this as an edit 726 // and commit the whole token. 727 if (whatEnd != getSelectionEnd()) { 728 handleEdit(start, whatEnd); 729 return true; 730 } 731 return commitChip(start, end , editable); 732 } 733 return false; 734 } 735 736 private void commitByCharacter() { 737 Editable editable = getText(); 738 int end = getSelectionEnd(); 739 int start = mTokenizer.findTokenStart(editable, end); 740 if (shouldCreateChip(start, end)) { 741 commitChip(start, end, editable); 742 } 743 setSelection(getText().length()); 744 } 745 746 private boolean commitChip(int start, int end, Editable editable) { 747 if (getAdapter().getCount() > 0) { 748 // choose the first entry. 749 submitItemAtPosition(0); 750 dismissDropDown(); 751 return true; 752 } else { 753 int tokenEnd = mTokenizer.findTokenEnd(editable, start); 754 String text = editable.toString().substring(start, tokenEnd).trim(); 755 clearComposingText(); 756 if (text != null && text.length() > 0 && !text.equals(" ")) { 757 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 758 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 759 CharSequence chipText = createChip(entry, false); 760 editable.replace(start, end, chipText); 761 dismissDropDown(); 762 return true; 763 } 764 } 765 return false; 766 } 767 768 private boolean shouldCreateChip(int start, int end) { 769 if (hasFocus() && enoughToFilter()) { 770 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 771 if ((chips == null || chips.length == 0)) { 772 return true; 773 } 774 } 775 return false; 776 } 777 778 private void handleEdit(int start, int end) { 779 // This is in the middle of a chip, so select out the whole chip 780 // and commit it. 781 Editable editable = getText(); 782 setSelection(end); 783 String text = getText().toString().substring(start, end); 784 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 785 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 786 CharSequence chipText = createChip(entry, false); 787 editable.replace(start, getSelectionEnd(), chipText); 788 dismissDropDown(); 789 } 790 791 /** 792 * If there is a selected chip, delegate the key events 793 * to the selected chip. 794 */ 795 @Override 796 public boolean onKeyDown(int keyCode, KeyEvent event) { 797 if (mSelectedChip != null && keyCode == KeyEvent.KEYCODE_DEL) { 798 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 799 mAlternatesPopup.dismiss(); 800 } 801 removeChip(mSelectedChip); 802 } 803 804 if (keyCode == KeyEvent.KEYCODE_ENTER && event.hasNoModifiers()) { 805 return true; 806 } 807 808 return super.onKeyDown(keyCode, event); 809 } 810 811 private Spannable getSpannable() { 812 return getText(); 813 } 814 815 private int getChipStart(RecipientChip chip) { 816 return getSpannable().getSpanStart(chip); 817 } 818 819 private int getChipEnd(RecipientChip chip) { 820 return getSpannable().getSpanEnd(chip); 821 } 822 823 /** 824 * Instead of filtering on the entire contents of the edit box, 825 * this subclass method filters on the range from 826 * {@link Tokenizer#findTokenStart} to {@link #getSelectionEnd} 827 * if the length of that range meets or exceeds {@link #getThreshold} 828 * and makes sure that the range is not already a Chip. 829 */ 830 @Override 831 protected void performFiltering(CharSequence text, int keyCode) { 832 if (enoughToFilter()) { 833 int end = getSelectionEnd(); 834 int start = mTokenizer.findTokenStart(text, end); 835 // If this is a RecipientChip, don't filter 836 // on its contents. 837 Spannable span = getSpannable(); 838 RecipientChip[] chips = span.getSpans(start, end, RecipientChip.class); 839 if (chips != null && chips.length > 0) { 840 return; 841 } 842 } 843 super.performFiltering(text, keyCode); 844 } 845 846 private void clearSelectedChip() { 847 if (mSelectedChip != null) { 848 unselectChip(mSelectedChip); 849 mSelectedChip = null; 850 } 851 setCursorVisible(true); 852 } 853 854 /** 855 * Monitor touch events in the RecipientEditTextView. 856 * If the view does not have focus, any tap on the view 857 * will just focus the view. If the view has focus, determine 858 * if the touch target is a recipient chip. If it is and the chip 859 * is not selected, select it and clear any other selected chips. 860 * If it isn't, then select that chip. 861 */ 862 @Override 863 public boolean onTouchEvent(MotionEvent event) { 864 if (!isFocused()) { 865 // Ignore any chip taps until this view is focused. 866 return super.onTouchEvent(event); 867 } 868 869 boolean handled = super.onTouchEvent(event); 870 int action = event.getAction(); 871 boolean chipWasSelected = false; 872 873 if (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_DOWN) { 874 float x = event.getX(); 875 float y = event.getY(); 876 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 877 RecipientChip currentChip = findChip(offset); 878 if (currentChip != null) { 879 if (action == MotionEvent.ACTION_UP) { 880 if (mSelectedChip != null && mSelectedChip != currentChip) { 881 clearSelectedChip(); 882 mSelectedChip = selectChip(currentChip); 883 } else if (mSelectedChip == null) { 884 // Selection may have moved due to the tap event, 885 // but make sure we correctly reset selection to the 886 // end so that any unfinished chips are committed. 887 setSelection(getText().length()); 888 commitDefault(); 889 mSelectedChip = selectChip(currentChip); 890 } else { 891 onClick(mSelectedChip, offset, x, y); 892 } 893 } 894 chipWasSelected = true; 895 setCursorVisible(false); 896 handled = true; 897 } 898 } 899 if (action == MotionEvent.ACTION_UP && !chipWasSelected) { 900 clearSelectedChip(); 901 } 902 return handled; 903 } 904 905 private void scrollLineIntoView(int line) { 906 if (mScrollView != null) { 907 mScrollView.scrollBy(0, calculateOffsetFromBottom(line)); 908 } 909 } 910 911 private void showAlternates(RecipientChip currentChip, ListPopupWindow alternatesPopup, 912 int width, Context context) { 913 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 914 int bottom = calculateOffsetFromBottom(line); 915 // Align the alternates popup with the left side of the View, 916 // regardless of the position of the chip tapped. 917 alternatesPopup.setWidth(width); 918 alternatesPopup.setAnchorView(this); 919 alternatesPopup.setVerticalOffset(bottom); 920 alternatesPopup.setAdapter(createAlternatesAdapter(currentChip)); 921 alternatesPopup.setOnItemClickListener(mAlternatesListener); 922 alternatesPopup.show(); 923 ListView listView = alternatesPopup.getListView(); 924 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 925 // Checked item would be -1 if the adapter has not 926 // loaded the view that should be checked yet. The 927 // variable will be set correctly when onCheckedItemChanged 928 // is called in a separate thread. 929 if (mCheckedItem != -1) { 930 listView.setItemChecked(mCheckedItem, true); 931 mCheckedItem = -1; 932 } 933 } 934 935 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 936 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 937 mAlternatesLayout, this); 938 } 939 940 public void onCheckedItemChanged(int position) { 941 ListView listView = mAlternatesPopup.getListView(); 942 if (listView != null && listView.getCheckedItemCount() == 0) { 943 listView.setItemChecked(position, true); 944 } else { 945 mCheckedItem = position; 946 } 947 } 948 949 // TODO: This algorithm will need a lot of tweaking after more people have used 950 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 951 // what comes before the finger. 952 private int putOffsetInRange(int o) { 953 int offset = o; 954 Editable text = getText(); 955 int length = text.length(); 956 // Remove whitespace from end to find "real end" 957 int realLength = length; 958 for (int i = length - 1; i >= 0; i--) { 959 if (text.charAt(i) == ' ') { 960 realLength--; 961 } else { 962 break; 963 } 964 } 965 966 // If the offset is beyond or at the end of the text, 967 // leave it alone. 968 if (offset >= realLength) { 969 return offset; 970 } 971 Editable editable = getText(); 972 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 973 // Keep walking backward! 974 offset--; 975 } 976 return offset; 977 } 978 979 private int findText(Editable text, int offset) { 980 if (text.charAt(offset) != ' ') { 981 return offset; 982 } 983 return -1; 984 } 985 986 private RecipientChip findChip(int offset) { 987 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 988 // Find the chip that contains this offset. 989 for (int i = 0; i < chips.length; i++) { 990 RecipientChip chip = chips[i]; 991 int start = getChipStart(chip); 992 int end = getChipEnd(chip); 993 if (offset >= start && offset <= end) { 994 return chip; 995 } 996 } 997 return null; 998 } 999 1000 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 1001 String displayText = entry.getDestination(); 1002 displayText = (String) mTokenizer.terminateToken(displayText); 1003 // Always leave a blank space at the end of a chip. 1004 int textLength = displayText.length()-1; 1005 SpannableString chipText = new SpannableString(displayText); 1006 int end = getSelectionEnd(); 1007 int start = mTokenizer.findTokenStart(getText(), end); 1008 try { 1009 chipText.setSpan(constructChipSpan(entry, start, pressed), 0, textLength, 1010 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1011 } catch (NullPointerException e) { 1012 Log.e(TAG, e.getMessage(), e); 1013 return null; 1014 } 1015 1016 return chipText; 1017 } 1018 1019 /** 1020 * When an item in the suggestions list has been clicked, create a chip from the 1021 * contact information of the selected item. 1022 */ 1023 @Override 1024 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1025 submitItemAtPosition(position); 1026 } 1027 1028 private void submitItemAtPosition(int position) { 1029 RecipientEntry entry = createValidatedEntry( 1030 (RecipientEntry)getAdapter().getItem(position)); 1031 clearComposingText(); 1032 1033 int end = getSelectionEnd(); 1034 int start = mTokenizer.findTokenStart(getText(), end); 1035 1036 Editable editable = getText(); 1037 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1038 editable.replace(start, end, createChip(entry, false)); 1039 } 1040 1041 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1042 if (item == null) { 1043 return null; 1044 } 1045 final RecipientEntry entry; 1046 // If the display name and the address are the same, or if this is a 1047 // valid contact, but the destination is invalid, then make this a fake 1048 // recipient that is editable. 1049 String destination = item.getDestination(); 1050 if (TextUtils.equals(item.getDisplayName(), destination) 1051 || (mValidator != null && !mValidator.isValid(destination))) { 1052 entry = RecipientEntry.constructFakeEntry(destination); 1053 } else { 1054 entry = item; 1055 } 1056 return entry; 1057 } 1058 1059 /** Returns a collection of contact Id for each chip inside this View. */ 1060 /* package */ Collection<Long> getContactIds() { 1061 final Set<Long> result = new HashSet<Long>(); 1062 RecipientChip[] chips = getRecipients(); 1063 if (chips != null) { 1064 for (RecipientChip chip : chips) { 1065 result.add(chip.getContactId()); 1066 } 1067 } 1068 return result; 1069 } 1070 1071 private RecipientChip[] getRecipients() { 1072 return getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1073 } 1074 1075 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1076 /* package */ Collection<Long> getDataIds() { 1077 final Set<Long> result = new HashSet<Long>(); 1078 RecipientChip [] chips = getRecipients(); 1079 if (chips != null) { 1080 for (RecipientChip chip : chips) { 1081 result.add(chip.getDataId()); 1082 } 1083 } 1084 return result; 1085 } 1086 1087 1088 @Override 1089 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1090 return false; 1091 } 1092 1093 @Override 1094 public void onDestroyActionMode(ActionMode mode) { 1095 } 1096 1097 @Override 1098 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1099 return false; 1100 } 1101 1102 /** 1103 * No chips are selectable. 1104 */ 1105 @Override 1106 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1107 return false; 1108 } 1109 1110 /** 1111 * Create the more chip. The more chip is text that replaces any chips that 1112 * do not fit in the pre-defined available space when the 1113 * RecipientEditTextView loses focus. 1114 */ 1115 private void createMoreChip() { 1116 RecipientChip[] recipients = getRecipients(); 1117 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1118 mMoreChip = null; 1119 return; 1120 } 1121 int numRecipients = recipients.length; 1122 int overage = numRecipients - CHIP_LIMIT; 1123 Editable text = getText(); 1124 // TODO: get the correct size from visual design. 1125 int width = (int) Math.floor(getWidth() * MORE_WIDTH_FACTOR); 1126 int height = getLineHeight(); 1127 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1128 Canvas canvas = new Canvas(drawable); 1129 String moreText = getResources().getString(mMoreString, overage); 1130 canvas.drawText(moreText, 0, moreText.length(), 0, height - getLayout().getLineDescent(0), 1131 getPaint()); 1132 1133 Drawable result = new BitmapDrawable(getResources(), drawable); 1134 result.setBounds(0, 0, width, height); 1135 ImageSpan moreSpan = new ImageSpan(result); 1136 Spannable spannable = getSpannable(); 1137 // Remove the overage chips. 1138 if (recipients == null || recipients.length == 0) { 1139 Log.w(TAG, 1140 "We have recipients. Tt should not be possible to have zero RecipientChips."); 1141 mMoreChip = null; 1142 return; 1143 } 1144 mRemovedSpans = new ArrayList<RecipientChip>(); 1145 int totalReplaceStart = 0; 1146 int totalReplaceEnd = 0; 1147 for (int i = numRecipients - overage; i < recipients.length; i++) { 1148 mRemovedSpans.add(recipients[i]); 1149 if (i == numRecipients - overage) { 1150 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1151 } 1152 if (i == recipients.length - 1) { 1153 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1154 } 1155 if (mTemporaryRecipients != null && !mTemporaryRecipients.contains(recipients[i])) { 1156 recipients[i].storeChipStart(spannable.getSpanStart(recipients[i])); 1157 recipients[i].storeChipEnd(spannable.getSpanEnd(recipients[i])); 1158 } 1159 spannable.removeSpan(recipients[i]); 1160 } 1161 // TODO: why would these ever be backwards? 1162 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1163 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1164 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1165 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1166 text.replace(start, end, chipText); 1167 mMoreChip = moreSpan; 1168 } 1169 1170 /** 1171 * Replace the more chip, if it exists, with all of the recipient chips it had 1172 * replaced when the RecipientEditTextView gains focus. 1173 */ 1174 private void removeMoreChip() { 1175 if (mMoreChip != null) { 1176 Spannable span = getSpannable(); 1177 span.removeSpan(mMoreChip); 1178 mMoreChip = null; 1179 // Re-add the spans that were removed. 1180 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1181 // Recreate each removed span. 1182 Editable editable = getText(); 1183 for (RecipientChip chip : mRemovedSpans) { 1184 int chipStart = chip.getStoredChipStart(); 1185 int chipEnd; 1186 String token; 1187 if (chipStart == -1) { 1188 // Need to find the location of the chip, again. 1189 token = (String)mTokenizer.terminateToken(chip.getEntry().getDestination()); 1190 chipStart = editable.toString().indexOf(token); 1191 // -1 for the space! 1192 chipEnd = chipStart + token.length() - 1; 1193 } else { 1194 chipEnd = Math.min(editable.length(), chip.getStoredChipEnd()); 1195 } 1196 if (Log.isLoggable(TAG, Log.DEBUG) && chipEnd != chip.getStoredChipEnd()) { 1197 Log.d(TAG, 1198 "Unexpectedly, the chip ended after the end of the editable text. " 1199 + "Chip End " + chip.getStoredChipEnd() 1200 + "Editable length " + editable.length()); 1201 } 1202 editable.setSpan(chip, chipStart, chipEnd, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1203 } 1204 mRemovedSpans.clear(); 1205 } 1206 } 1207 } 1208 1209 /** 1210 * Show specified chip as selected. If the RecipientChip is just an email address, 1211 * selecting the chip will take the contents of the chip and place it at 1212 * the end of the RecipientEditTextView for inline editing. If the 1213 * RecipientChip is a complete contact, then selecting the chip 1214 * will change the background color of the chip, show the delete icon, 1215 * and a popup window with the address in use highlighted and any other 1216 * alternate addresses for the contact. 1217 * @param currentChip Chip to select. 1218 * @return A RecipientChip in the selected state or null if the chip 1219 * just contained an email address. 1220 */ 1221 public RecipientChip selectChip(RecipientChip currentChip) { 1222 if (currentChip.getContactId() != INVALID_CONTACT) { 1223 int start = getChipStart(currentChip); 1224 int end = getChipEnd(currentChip); 1225 getSpannable().removeSpan(currentChip); 1226 RecipientChip newChip; 1227 try { 1228 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1229 } catch (NullPointerException e) { 1230 Log.e(TAG, e.getMessage(), e); 1231 return null; 1232 } 1233 Editable editable = getText(); 1234 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1235 if (start == -1 || end == -1) { 1236 Log.d(TAG, "The chip being selected no longer exists but should."); 1237 } else { 1238 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1239 } 1240 newChip.setSelected(true); 1241 if (newChip.getEntry().getContactId() == INVALID_CONTACT) { 1242 scrollLineIntoView(getLayout().getLineForOffset( 1243 getChipStart(newChip))); 1244 } 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.removeSpan(chip); 1275 try { 1276 editable.setSpan(constructChipSpan(chip.getEntry(), start, false), start, end, 1277 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1278 } catch (NullPointerException e) { 1279 Log.e(TAG, e.getMessage(), e); 1280 } 1281 } 1282 setCursorVisible(true); 1283 setSelection(editable.length()); 1284 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1285 mAlternatesPopup.dismiss(); 1286 } 1287 } 1288 1289 1290 /** 1291 * Return whether this chip contains the position passed in. 1292 */ 1293 public boolean matchesChip(RecipientChip chip, int offset) { 1294 int start = getChipStart(chip); 1295 int end = getChipEnd(chip); 1296 if (start == -1 || end == -1) { 1297 return false; 1298 } 1299 return (offset >= start && offset <= end); 1300 } 1301 1302 1303 /** 1304 * Return whether a touch event was inside the delete target of 1305 * a selected chip. It is in the delete target if: 1306 * 1) the x and y points of the event are within the 1307 * delete assset. 1308 * 2) the point tapped would have caused a cursor to appear 1309 * right after the selected chip. 1310 * @return boolean 1311 */ 1312 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1313 // Figure out the bounds of this chip and whether or not 1314 // the user clicked in the X portion. 1315 return chip.isSelected() && offset == getChipEnd(chip); 1316 } 1317 1318 /** 1319 * Remove the chip and any text associated with it from the RecipientEditTextView. 1320 */ 1321 private void removeChip(RecipientChip chip) { 1322 Spannable spannable = getSpannable(); 1323 int spanStart = spannable.getSpanStart(chip); 1324 int spanEnd = spannable.getSpanEnd(chip); 1325 Editable text = getText(); 1326 int toDelete = spanEnd; 1327 boolean wasSelected = chip == mSelectedChip; 1328 // Clear that there is a selected chip before updating any text. 1329 if (wasSelected) { 1330 mSelectedChip = null; 1331 } 1332 // Always remove trailing spaces when removing a chip. 1333 while (toDelete >= 0 && toDelete < text.length() && text.charAt(toDelete) == ' ') { 1334 toDelete++; 1335 } 1336 spannable.removeSpan(chip); 1337 text.delete(spanStart, toDelete); 1338 if (wasSelected) { 1339 clearSelectedChip(); 1340 } 1341 } 1342 1343 /** 1344 * Replace this currently selected chip with a new chip 1345 * that uses the contact data provided. 1346 */ 1347 public void replaceChip(RecipientChip chip, RecipientEntry entry) { 1348 boolean wasSelected = chip == mSelectedChip; 1349 if (wasSelected) { 1350 mSelectedChip = null; 1351 } 1352 int start = getChipStart(chip); 1353 int end = getChipEnd(chip); 1354 getSpannable().removeSpan(chip); 1355 Editable editable = getText(); 1356 CharSequence chipText = createChip(entry, false); 1357 if (start == -1 || end == -1) { 1358 Log.e(TAG, "The chip to replace does not exist but should."); 1359 editable.insert(0, chipText); 1360 } else { 1361 // There may be a space to replace with this chip's new associated 1362 // space. Check for it. 1363 int toReplace = end; 1364 while (toReplace >= 0 && toReplace < editable.length() 1365 && editable.charAt(toReplace) == ' ') { 1366 toReplace++; 1367 } 1368 editable.replace(start, toReplace, chipText); 1369 } 1370 setCursorVisible(true); 1371 if (wasSelected) { 1372 clearSelectedChip(); 1373 } 1374 } 1375 1376 /** 1377 * Handle click events for a chip. When a selected chip receives a click 1378 * event, see if that event was in the delete icon. If so, delete it. 1379 * Otherwise, unselect the chip. 1380 */ 1381 public void onClick(RecipientChip chip, int offset, float x, float y) { 1382 if (chip.isSelected()) { 1383 if (isInDelete(chip, offset, x, y)) { 1384 removeChip(chip); 1385 } else { 1386 clearSelectedChip(); 1387 } 1388 } 1389 } 1390 1391 private boolean chipsPending() { 1392 return mPendingChipsCount > 0 || (mRemovedSpans != null && mRemovedSpans.size() > 0); 1393 } 1394 1395 private class RecipientTextWatcher implements TextWatcher { 1396 @Override 1397 public void afterTextChanged(Editable s) { 1398 // Get whether there are any recipients pending addition to the view. 1399 // If there are, don't do anything in the text watcher. 1400 if (chipsPending()) { 1401 return; 1402 } 1403 if (mSelectedChip != null) { 1404 setCursorVisible(true); 1405 setSelection(getText().length()); 1406 clearSelectedChip(); 1407 } 1408 int length = s.length(); 1409 // Make sure there is content there to parse and that it is 1410 // not just the commit character. 1411 if (length > 1) { 1412 char last; 1413 int end = getSelectionEnd() == 0 ? 0 : getSelectionEnd() - 1; 1414 int len = length() - 1; 1415 if (end != len) { 1416 last = s.charAt(end); 1417 } else { 1418 last = s.charAt(len); 1419 } 1420 if (last == COMMIT_CHAR_SEMICOLON || last == COMMIT_CHAR_COMMA) { 1421 commitByCharacter(); 1422 } else if (last == COMMIT_CHAR_SPACE) { 1423 // Check if this is a valid email address. If it is, 1424 // commit it. 1425 String text = getText().toString(); 1426 int tokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 1427 String sub = text.substring(tokenStart, mTokenizer.findTokenEnd(text, 1428 tokenStart)); 1429 if (mValidator != null && mValidator.isValid(sub)) { 1430 commitByCharacter(); 1431 } 1432 } 1433 } 1434 } 1435 1436 @Override 1437 public void onTextChanged(CharSequence s, int start, int before, int count) { 1438 } 1439 1440 @Override 1441 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 1442 } 1443 } 1444 1445 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 1446 private RecipientChip createFreeChip(RecipientEntry entry) { 1447 String displayText = entry.getDestination(); 1448 displayText = (String) mTokenizer.terminateToken(displayText); 1449 try { 1450 return constructChipSpan(entry, -1, false); 1451 } catch (NullPointerException e) { 1452 Log.e(TAG, e.getMessage(), e); 1453 return null; 1454 } 1455 } 1456 1457 @Override 1458 protected Void doInBackground(Void... params) { 1459 if (mIndividualReplacements != null) { 1460 mIndividualReplacements.cancel(true); 1461 } 1462 // For each chip in the list, look up the matching contact. 1463 // If there is a match, replace that chip with the matching 1464 // chip. 1465 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 1466 RecipientChip[] existingChips = getSpannable().getSpans(0, getText().length(), 1467 RecipientChip.class); 1468 for (int i = 0; i < existingChips.length; i++) { 1469 originalRecipients.add(existingChips[i]); 1470 } 1471 if (mRemovedSpans != null) { 1472 originalRecipients.addAll(mRemovedSpans); 1473 } 1474 String[] addresses = new String[originalRecipients.size()]; 1475 for (int i = 0; i < originalRecipients.size(); i++) { 1476 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1477 } 1478 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1479 .getMatchingRecipients(getContext(), addresses); 1480 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 1481 for (final RecipientChip temp : originalRecipients) { 1482 RecipientEntry entry = null; 1483 if (temp.getEntry().getContactId() == INVALID_CONTACT 1484 && getSpannable().getSpanStart(temp) != -1) { 1485 // Replace this. 1486 entry = createValidatedEntry(entries.get(temp.getEntry().getDestination())); 1487 } 1488 if (entry != null) { 1489 replacements.add(createFreeChip(entry)); 1490 } else { 1491 replacements.add(temp); 1492 } 1493 } 1494 if (replacements != null && replacements.size() > 0) { 1495 mHandler.post(new Runnable() { 1496 @Override 1497 public void run() { 1498 SpannableStringBuilder text = new SpannableStringBuilder(getText() 1499 .toString()); 1500 Editable oldText = getText(); 1501 int start, end; 1502 int i = 0; 1503 for (RecipientChip chip : originalRecipients) { 1504 start = oldText.getSpanStart(chip); 1505 if (start != -1) { 1506 end = oldText.getSpanEnd(chip); 1507 text.removeSpan(chip); 1508 // Leave a spot for the space! 1509 text.setSpan(replacements.get(i), start, end, 1510 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1511 } 1512 i++; 1513 } 1514 Editable editable = getText(); 1515 editable.clear(); 1516 editable.insert(0, text); 1517 originalRecipients.clear(); 1518 } 1519 }); 1520 } 1521 return null; 1522 } 1523 } 1524 1525 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 1526 @SuppressWarnings("unchecked") 1527 @Override 1528 protected Void doInBackground(Object... params) { 1529 // For each chip in the list, look up the matching contact. 1530 // If there is a match, replace that chip with the matching 1531 // chip. 1532 final ArrayList<RecipientChip> originalRecipients = 1533 (ArrayList<RecipientChip>) params[0]; 1534 String[] addresses = new String[originalRecipients.size()]; 1535 for (int i = 0; i < originalRecipients.size(); i++) { 1536 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1537 } 1538 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1539 .getMatchingRecipients(getContext(), addresses); 1540 for (final RecipientChip temp : originalRecipients) { 1541 if (temp.getEntry().getContactId() == INVALID_CONTACT 1542 && getSpannable().getSpanStart(temp) != -1) { 1543 // Replace this. 1544 final RecipientEntry entry = createValidatedEntry(entries.get(temp.getEntry() 1545 .getDestination())); 1546 if (entry != null) { 1547 mHandler.post(new Runnable() { 1548 @Override 1549 public void run() { 1550 replaceChip(temp, entry); 1551 } 1552 }); 1553 } 1554 } 1555 } 1556 return null; 1557 } 1558 } 1559} 1560