RecipientEditTextView.java revision e81f8a3d2c9bc916a72b3bf42f56c3ef8fb547f3
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 // We don't care about watching text changes while appending. 237 if (mTextWatcher != null) { 238 removeTextChangedListener(mTextWatcher); 239 } 240 super.append(text, start, end); 241 if (!TextUtils.isEmpty(text) && TextUtils.getTrimmedLength(text) > 0) { 242 final String displayString = (String) text; 243 int seperatorPos = displayString.indexOf(COMMIT_CHAR_COMMA); 244 if (seperatorPos != 0 && !TextUtils.isEmpty(displayString) 245 && TextUtils.getTrimmedLength(displayString) > 0) { 246 mPendingChipsCount++; 247 mPendingChips.add((String)text); 248 } 249 } 250 } 251 252 @Override 253 public void onFocusChanged(boolean hasFocus, int direction, Rect previous) { 254 if (!hasFocus) { 255 shrink(); 256 } else { 257 expand(); 258 scrollLineIntoView(getLineCount()); 259 } 260 super.onFocusChanged(hasFocus, direction, previous); 261 } 262 263 private void shrink() { 264 if (mSelectedChip != null) { 265 clearSelectedChip(); 266 } else { 267 // Reset any pending chips as they would have been handled 268 // when the field lost focus. 269 if (mPendingChipsCount > 0) { 270 handlePendingChips(); 271 mPendingChipsCount = 0; 272 mPendingChips.clear(); 273 } else { 274 Editable editable = getText(); 275 int end = getSelectionEnd(); 276 int start = mTokenizer.findTokenStart(editable, end); 277 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 278 if ((chips == null || chips.length == 0)) { 279 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 280 // In the middle of chip; treat this as an edit 281 // and commit the whole token. 282 if (whatEnd != getSelectionEnd()) { 283 handleEdit(start, whatEnd); 284 } else { 285 commitChip(start, end, editable); 286 } 287 } 288 } 289 mHandler.post(mAddTextWatcher); 290 } 291 createMoreChip(); 292 } 293 294 private void expand() { 295 removeMoreChip(); 296 setCursorVisible(true); 297 Editable text = getText(); 298 setSelection(text != null && text.length() > 0 ? text.length() : 0); 299 // If there are any temporary chips, try replacing them now that the user 300 // has expanded the field. 301 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0) { 302 new RecipientReplacementTask().execute(); 303 mTemporaryRecipients = null; 304 } 305 } 306 307 private CharSequence ellipsizeText(CharSequence text, TextPaint paint, float maxWidth) { 308 paint.setTextSize(mChipFontSize); 309 if (maxWidth <= 0 && Log.isLoggable(TAG, Log.DEBUG)) { 310 Log.d(TAG, "Max width is negative: " + maxWidth); 311 } 312 return TextUtils.ellipsize(text, paint, maxWidth, 313 TextUtils.TruncateAt.END); 314 } 315 316 private Bitmap createSelectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 317 // Ellipsize the text so that it takes AT MOST the entire width of the 318 // autocomplete text entry area. Make sure to leave space for padding 319 // on the sides. 320 int height = (int) mChipHeight; 321 int deleteWidth = height; 322 CharSequence ellipsizedText = ellipsizeText(contact.getDisplayName(), paint, 323 calculateAvailableWidth(true) - deleteWidth); 324 325 // Make sure there is a minimum chip width so the user can ALWAYS 326 // tap a chip without difficulty. 327 int width = Math.max(deleteWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 328 ellipsizedText.length())) 329 + (mChipPadding * 2) + deleteWidth); 330 331 // Create the background of the chip. 332 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 333 Canvas canvas = new Canvas(tmpBitmap); 334 if (mChipBackgroundPressed != null) { 335 mChipBackgroundPressed.setBounds(0, 0, width, height); 336 mChipBackgroundPressed.draw(canvas); 337 paint.setColor(sSelectedTextColor); 338 // Align the display text with where the user enters text. 339 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, height 340 - Math.abs(height - mChipFontSize)/2, paint); 341 // Make the delete a square. 342 mChipDelete.setBounds(width - deleteWidth, 0, width, height); 343 mChipDelete.draw(canvas); 344 } else { 345 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 346 } 347 return tmpBitmap; 348 } 349 350 351 /** 352 * Get the background drawable for a RecipientChip. 353 */ 354 public Drawable getChipBackground(RecipientEntry contact) { 355 return (mValidator != null && mValidator.isValid(contact.getDestination())) ? 356 mChipBackground : mInvalidChipBackground; 357 } 358 359 private Bitmap createUnselectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 360 // Ellipsize the text so that it takes AT MOST the entire width of the 361 // autocomplete text entry area. Make sure to leave space for padding 362 // on the sides. 363 int height = (int) mChipHeight; 364 int iconWidth = height; 365 CharSequence ellipsizedText = ellipsizeText(contact.getDisplayName(), paint, 366 calculateAvailableWidth(false) - iconWidth); 367 // Make sure there is a minimum chip width so the user can ALWAYS 368 // tap a chip without difficulty. 369 int width = Math.max(iconWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 370 ellipsizedText.length())) 371 + (mChipPadding * 2) + iconWidth); 372 373 // Create the background of the chip. 374 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 375 Canvas canvas = new Canvas(tmpBitmap); 376 Drawable background = getChipBackground(contact); 377 if (background != null) { 378 background.setBounds(0, 0, width, height); 379 background.draw(canvas); 380 381 // Don't draw photos for recipients that have been typed in. 382 if (contact.getContactId() != INVALID_CONTACT) { 383 byte[] photoBytes = contact.getPhotoBytes(); 384 // There may not be a photo yet if anything but the first contact address 385 // was selected. 386 if (photoBytes == null && contact.getPhotoThumbnailUri() != null) { 387 // TODO: cache this in the recipient entry? 388 ((BaseRecipientAdapter) getAdapter()).fetchPhoto(contact, contact 389 .getPhotoThumbnailUri()); 390 photoBytes = contact.getPhotoBytes(); 391 } 392 393 Bitmap photo; 394 if (photoBytes != null) { 395 photo = BitmapFactory.decodeByteArray(photoBytes, 0, photoBytes.length); 396 } else { 397 // TODO: can the scaled down default photo be cached? 398 photo = mDefaultContactPhoto; 399 } 400 // Draw the photo on the left side. 401 Matrix matrix = new Matrix(); 402 RectF src = new RectF(0, 0, photo.getWidth(), photo.getHeight()); 403 RectF dst = new RectF(width - iconWidth, 0, width, height); 404 matrix.setRectToRect(src, dst, Matrix.ScaleToFit.CENTER); 405 canvas.drawBitmap(photo, matrix, paint); 406 } else { 407 // Don't leave any space for the icon. It isn't being drawn. 408 iconWidth = 0; 409 } 410 411 // Align the display text with where the user enters text. 412 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 413 height - Math.abs(height - mChipFontSize) / 2, paint); 414 } else { 415 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 416 } 417 return tmpBitmap; 418 } 419 420 public RecipientChip constructChipSpan(RecipientEntry contact, int offset, boolean pressed) 421 throws NullPointerException { 422 if (mChipBackground == null) { 423 throw new NullPointerException( 424 "Unable to render any chips as setChipDimensions was not called."); 425 } 426 Layout layout = getLayout(); 427 428 TextPaint paint = getPaint(); 429 float defaultSize = paint.getTextSize(); 430 int defaultColor = paint.getColor(); 431 432 Bitmap tmpBitmap; 433 if (pressed) { 434 tmpBitmap = createSelectedChip(contact, paint, layout); 435 436 } else { 437 tmpBitmap = createUnselectedChip(contact, paint, layout); 438 } 439 440 // Pass the full text, un-ellipsized, to the chip. 441 Drawable result = new BitmapDrawable(getResources(), tmpBitmap); 442 result.setBounds(0, 0, tmpBitmap.getWidth(), tmpBitmap.getHeight()); 443 RecipientChip recipientChip = new RecipientChip(result, contact, offset); 444 // Return text to the original size. 445 paint.setTextSize(defaultSize); 446 paint.setColor(defaultColor); 447 return recipientChip; 448 } 449 450 /** 451 * Calculate the bottom of the line the chip will be located on using: 452 * 1) which line the chip appears on 453 * 2) the height of a chip 454 * 3) padding built into the edit text view 455 */ 456 private int calculateOffsetFromBottom(int line) { 457 // Line offsets start at zero. 458 int actualLine = getLineCount() - (line + 1); 459 return -((actualLine * ((int)mChipHeight) + getPaddingBottom()) + getPaddingTop()); 460 } 461 462 /** 463 * Get the max amount of space a chip can take up. The formula takes into 464 * account the width of the EditTextView, any view padding, and padding 465 * that will be added to the chip. 466 */ 467 private float calculateAvailableWidth(boolean pressed) { 468 return getWidth() - getPaddingLeft() - getPaddingRight() - (mChipPadding * 2); 469 } 470 471 /** 472 * Set all chip dimensions and resources. This has to be done from the 473 * application as this is a static library. 474 * @param chipBackground 475 * @param chipBackgroundPressed 476 * @param invalidChip 477 * @param chipDelete 478 * @param defaultContact 479 * @param moreResource 480 * @param alternatesLayout 481 * @param chipHeight 482 * @param padding Padding around the text in a chip 483 */ 484 public void setChipDimensions(Drawable chipBackground, Drawable chipBackgroundPressed, 485 Drawable invalidChip, Drawable chipDelete, Bitmap defaultContact, int moreResource, 486 int alternatesLayout, float chipHeight, float padding, 487 float chipFontSize) { 488 mChipBackground = chipBackground; 489 mChipBackgroundPressed = chipBackgroundPressed; 490 mChipDelete = chipDelete; 491 mChipPadding = (int) padding; 492 mAlternatesLayout = alternatesLayout; 493 mDefaultContactPhoto = defaultContact; 494 mMoreString = moreResource; 495 mChipHeight = chipHeight; 496 mChipFontSize = chipFontSize; 497 mInvalidChipBackground = invalidChip; 498 } 499 500 @Override 501 public void onSizeChanged(int width, int height, int oldw, int oldh) { 502 super.onSizeChanged(width, height, oldw, oldh); 503 // Check for any pending tokens created before layout had been completed 504 // on the view. 505 if (width != 0 && height != 0) { 506 if (mPendingChipsCount > 0) { 507 handlePendingChips(); 508 } 509 mPendingChipsCount = 0; 510 mPendingChips.clear(); 511 mHandler.post(mAddTextWatcher); 512 } 513 // Try to find the scroll view parent, if it exists. 514 if (mScrollView == null && !mTried) { 515 ViewParent parent = getParent(); 516 while (parent != null && !(parent instanceof ScrollView)) { 517 parent = parent.getParent(); 518 } 519 if (parent != null) { 520 mScrollView = (ScrollView) parent; 521 } 522 mTried = true; 523 } 524 } 525 526 private void handlePendingChips() { 527 mTemporaryRecipients = new ArrayList<RecipientChip>(mPendingChipsCount); 528 Editable editable = getText(); 529 // Tokenize! 530 for (int i = 0; i < mPendingChips.size(); i++) { 531 String current = mPendingChips.get(i); 532 int tokenStart = editable.toString().indexOf(current); 533 int tokenEnd = tokenStart + current.length(); 534 if (tokenStart >= 0) { 535 // When we have a valid token, include it with the token 536 // to the left. 537 if (tokenEnd < editable.length() - 2 538 && editable.charAt(tokenEnd) == COMMIT_CHAR_COMMA) { 539 tokenEnd++; 540 } 541 createReplacementChip(tokenStart, tokenEnd, editable); 542 } 543 mPendingChipsCount--; 544 } 545 sanitizeSpannable(); 546 if (mTemporaryRecipients != null 547 && mTemporaryRecipients.size() <= RecipientAlternatesAdapter.MAX_LOOKUPS) { 548 if (hasFocus() || mTemporaryRecipients.size() < CHIP_LIMIT) { 549 new RecipientReplacementTask().execute(); 550 mTemporaryRecipients = null; 551 } else { 552 // Create the "more" chip 553 mIndividualReplacements = new IndividualReplacementTask(); 554 mIndividualReplacements.execute(new ArrayList<RecipientChip>(mTemporaryRecipients 555 .subList(0, CHIP_LIMIT))); 556 557 createMoreChip(); 558 } 559 } else { 560 // There are too many recipients to look up, so just fall back to 561 // showing addresses for all of them. 562 mTemporaryRecipients = null; 563 createMoreChip(); 564 } 565 } 566 567 /** 568 * Remove any characters after the last valid chip. 569 */ 570 private void sanitizeSpannable() { 571 // Find the last chip; eliminate any commit characters after it. 572 RecipientChip[] chips = getRecipients(); 573 if (chips != null && chips.length > 0) { 574 int end; 575 ImageSpan lastSpan; 576 if (mMoreChip != null) { 577 lastSpan = mMoreChip; 578 } else { 579 lastSpan = chips[chips.length - 1]; 580 } 581 end = getSpannable().getSpanEnd(lastSpan); 582 Editable editable = getText(); 583 int length = editable.length(); 584 if (length > end) { 585 // See what characters occur after that and eliminate them. 586 if (Log.isLoggable(TAG, Log.DEBUG)) { 587 Log.d(TAG, "There were extra characters after the last tokenizable entry." 588 + editable); 589 } 590 editable.delete(end + 1, length); 591 } 592 } 593 } 594 595 /** 596 * Create a chip that represents just the email address of a recipient. At some later 597 * point, this chip will be attached to a real contact entry, if one exists. 598 */ 599 private void createReplacementChip(int tokenStart, int tokenEnd, Editable editable) { 600 String token = editable.toString().substring(tokenStart, tokenEnd); 601 int commitCharIndex = token.indexOf(COMMIT_CHAR_COMMA); 602 if (commitCharIndex == token.length() - 1) { 603 token = token.substring(0, token.length() - 1); 604 } 605 RecipientEntry entry = createTokenizedEntry(token); 606 String displayText = entry.getDestination(); 607 displayText = (String) mTokenizer.terminateToken(displayText); 608 // Always leave a blank space at the end of a chip. 609 int textLength = displayText.length() - 1; 610 SpannableString chipText = new SpannableString(displayText); 611 int end = getSelectionEnd(); 612 int start = mTokenizer.findTokenStart(getText(), end); 613 RecipientChip chip = null; 614 try { 615 chip = constructChipSpan(entry, start, false); 616 chipText.setSpan(chip, 0, textLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 617 } catch (NullPointerException e) { 618 Log.e(TAG, e.getMessage(), e); 619 } 620 621 editable.replace(tokenStart, tokenEnd, chipText); 622 // Add this chip to the list of entries "to replace" 623 if (chip != null) { 624 mTemporaryRecipients.add(chip); 625 } 626 } 627 628 private RecipientEntry createTokenizedEntry(String token) { 629 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(token); 630 String address; 631 if (tokens != null && tokens.length > 0) { 632 address = tokens[0].getAddress(); 633 } else { 634 address = token; 635 } 636 return RecipientEntry.constructFakeEntry(address); 637 } 638 639 @Override 640 public void setTokenizer(Tokenizer tokenizer) { 641 mTokenizer = tokenizer; 642 super.setTokenizer(mTokenizer); 643 } 644 645 @Override 646 public void setValidator(Validator validator) { 647 mValidator = validator; 648 super.setValidator(validator); 649 } 650 651 /** 652 * We cannot use the default mechanism for replaceText. Instead, 653 * we override onItemClickListener so we can get all the associated 654 * contact information including display text, address, and id. 655 */ 656 @Override 657 protected void replaceText(CharSequence text) { 658 return; 659 } 660 661 /** 662 * Dismiss any selected chips when the back key is pressed. 663 */ 664 @Override 665 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 666 if (keyCode == KeyEvent.KEYCODE_BACK) { 667 clearSelectedChip(); 668 } 669 return super.onKeyPreIme(keyCode, event); 670 } 671 672 /** 673 * Monitor key presses in this view to see if the user types 674 * any commit keys, which consist of ENTER, TAB, or DPAD_CENTER. 675 * If the user has entered text that has contact matches and types 676 * a commit key, create a chip from the topmost matching contact. 677 * If the user has entered text that has no contact matches and types 678 * a commit key, then create a chip from the text they have entered. 679 */ 680 @Override 681 public boolean onKeyUp(int keyCode, KeyEvent event) { 682 switch (keyCode) { 683 case KeyEvent.KEYCODE_ENTER: 684 case KeyEvent.KEYCODE_DPAD_CENTER: 685 if (event.hasNoModifiers()) { 686 if (commitDefault()) { 687 return true; 688 } 689 if (mSelectedChip != null) { 690 clearSelectedChip(); 691 return true; 692 } else if (focusNext()) { 693 return true; 694 } 695 } 696 break; 697 case KeyEvent.KEYCODE_TAB: 698 if (event.hasNoModifiers()) { 699 if (mSelectedChip != null) { 700 clearSelectedChip(); 701 } else { 702 commitDefault(); 703 } 704 if (focusNext()) { 705 return true; 706 } 707 } 708 } 709 return super.onKeyUp(keyCode, event); 710 } 711 712 private boolean focusNext() { 713 View next = focusSearch(View.FOCUS_DOWN); 714 if (next != null) { 715 next.requestFocus(); 716 return true; 717 } 718 return false; 719 } 720 721 /** 722 * Create a chip from the default selection. If the popup is showing, the 723 * default is the first item in the popup suggestions list. Otherwise, it is 724 * whatever the user had typed in. End represents where the the tokenizer 725 * should search for a token to turn into a chip. 726 * @return If a chip was created from a real contact. 727 */ 728 private boolean commitDefault() { 729 Editable editable = getText(); 730 int end = getSelectionEnd(); 731 int start = mTokenizer.findTokenStart(editable, end); 732 733 if (shouldCreateChip(start, end)) { 734 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 735 // In the middle of chip; treat this as an edit 736 // and commit the whole token. 737 if (whatEnd != getSelectionEnd()) { 738 handleEdit(start, whatEnd); 739 return true; 740 } 741 return commitChip(start, end , editable); 742 } 743 return false; 744 } 745 746 private void commitByCharacter() { 747 Editable editable = getText(); 748 int end = getSelectionEnd(); 749 int start = mTokenizer.findTokenStart(editable, end); 750 if (shouldCreateChip(start, end)) { 751 commitChip(start, end, editable); 752 } 753 setSelection(getText().length()); 754 } 755 756 private boolean commitChip(int start, int end, Editable editable) { 757 if (getAdapter().getCount() > 0 && enoughToFilter()) { 758 // choose the first entry. 759 submitItemAtPosition(0); 760 dismissDropDown(); 761 return true; 762 } else { 763 int tokenEnd = mTokenizer.findTokenEnd(editable, start); 764 String text = editable.toString().substring(start, tokenEnd).trim(); 765 clearComposingText(); 766 if (text != null && text.length() > 0 && !text.equals(" ")) { 767 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 768 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 769 CharSequence chipText = createChip(entry, false); 770 editable.replace(start, end, chipText); 771 dismissDropDown(); 772 return true; 773 } 774 } 775 return false; 776 } 777 778 private boolean shouldCreateChip(int start, int end) { 779 if (hasFocus() && enoughToFilter()) { 780 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 781 if ((chips == null || chips.length == 0)) { 782 return true; 783 } 784 } 785 return false; 786 } 787 788 private void handleEdit(int start, int end) { 789 // This is in the middle of a chip, so select out the whole chip 790 // and commit it. 791 Editable editable = getText(); 792 setSelection(end); 793 String text = getText().toString().substring(start, end); 794 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 795 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 796 CharSequence chipText = createChip(entry, false); 797 editable.replace(start, getSelectionEnd(), chipText); 798 dismissDropDown(); 799 } 800 801 /** 802 * If there is a selected chip, delegate the key events 803 * to the selected chip. 804 */ 805 @Override 806 public boolean onKeyDown(int keyCode, KeyEvent event) { 807 if (mSelectedChip != null && keyCode == KeyEvent.KEYCODE_DEL) { 808 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 809 mAlternatesPopup.dismiss(); 810 } 811 removeChip(mSelectedChip); 812 } 813 814 if (keyCode == KeyEvent.KEYCODE_ENTER && event.hasNoModifiers()) { 815 return true; 816 } 817 818 return super.onKeyDown(keyCode, event); 819 } 820 821 private Spannable getSpannable() { 822 return getText(); 823 } 824 825 private int getChipStart(RecipientChip chip) { 826 return getSpannable().getSpanStart(chip); 827 } 828 829 private int getChipEnd(RecipientChip chip) { 830 return getSpannable().getSpanEnd(chip); 831 } 832 833 /** 834 * Instead of filtering on the entire contents of the edit box, 835 * this subclass method filters on the range from 836 * {@link Tokenizer#findTokenStart} to {@link #getSelectionEnd} 837 * if the length of that range meets or exceeds {@link #getThreshold} 838 * and makes sure that the range is not already a Chip. 839 */ 840 @Override 841 protected void performFiltering(CharSequence text, int keyCode) { 842 if (enoughToFilter()) { 843 int end = getSelectionEnd(); 844 int start = mTokenizer.findTokenStart(text, end); 845 // If this is a RecipientChip, don't filter 846 // on its contents. 847 Spannable span = getSpannable(); 848 RecipientChip[] chips = span.getSpans(start, end, RecipientChip.class); 849 if (chips != null && chips.length > 0) { 850 return; 851 } 852 } 853 super.performFiltering(text, keyCode); 854 } 855 856 private void clearSelectedChip() { 857 if (mSelectedChip != null) { 858 unselectChip(mSelectedChip); 859 mSelectedChip = null; 860 } 861 setCursorVisible(true); 862 } 863 864 /** 865 * Monitor touch events in the RecipientEditTextView. 866 * If the view does not have focus, any tap on the view 867 * will just focus the view. If the view has focus, determine 868 * if the touch target is a recipient chip. If it is and the chip 869 * is not selected, select it and clear any other selected chips. 870 * If it isn't, then select that chip. 871 */ 872 @Override 873 public boolean onTouchEvent(MotionEvent event) { 874 if (!isFocused()) { 875 // Ignore any chip taps until this view is focused. 876 return super.onTouchEvent(event); 877 } 878 879 boolean handled = super.onTouchEvent(event); 880 int action = event.getAction(); 881 boolean chipWasSelected = false; 882 883 if (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_DOWN) { 884 float x = event.getX(); 885 float y = event.getY(); 886 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 887 RecipientChip currentChip = findChip(offset); 888 if (currentChip != null) { 889 if (action == MotionEvent.ACTION_UP) { 890 if (mSelectedChip != null && mSelectedChip != currentChip) { 891 clearSelectedChip(); 892 mSelectedChip = selectChip(currentChip); 893 } else if (mSelectedChip == null) { 894 // Selection may have moved due to the tap event, 895 // but make sure we correctly reset selection to the 896 // end so that any unfinished chips are committed. 897 setSelection(getText().length()); 898 commitDefault(); 899 mSelectedChip = selectChip(currentChip); 900 } else { 901 onClick(mSelectedChip, offset, x, y); 902 } 903 } 904 chipWasSelected = true; 905 setCursorVisible(false); 906 handled = true; 907 } 908 } 909 if (action == MotionEvent.ACTION_UP && !chipWasSelected) { 910 clearSelectedChip(); 911 } 912 return handled; 913 } 914 915 private void scrollLineIntoView(int line) { 916 if (mScrollView != null) { 917 mScrollView.scrollBy(0, calculateOffsetFromBottom(line)); 918 } 919 } 920 921 private void showAlternates(RecipientChip currentChip, ListPopupWindow alternatesPopup, 922 int width, Context context) { 923 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 924 int bottom = calculateOffsetFromBottom(line); 925 // Align the alternates popup with the left side of the View, 926 // regardless of the position of the chip tapped. 927 alternatesPopup.setWidth(width); 928 alternatesPopup.setAnchorView(this); 929 alternatesPopup.setVerticalOffset(bottom); 930 alternatesPopup.setAdapter(createAlternatesAdapter(currentChip)); 931 alternatesPopup.setOnItemClickListener(mAlternatesListener); 932 alternatesPopup.show(); 933 ListView listView = alternatesPopup.getListView(); 934 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 935 // Checked item would be -1 if the adapter has not 936 // loaded the view that should be checked yet. The 937 // variable will be set correctly when onCheckedItemChanged 938 // is called in a separate thread. 939 if (mCheckedItem != -1) { 940 listView.setItemChecked(mCheckedItem, true); 941 mCheckedItem = -1; 942 } 943 } 944 945 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 946 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 947 mAlternatesLayout, this); 948 } 949 950 public void onCheckedItemChanged(int position) { 951 ListView listView = mAlternatesPopup.getListView(); 952 if (listView != null && listView.getCheckedItemCount() == 0) { 953 listView.setItemChecked(position, true); 954 } else { 955 mCheckedItem = position; 956 } 957 } 958 959 // TODO: This algorithm will need a lot of tweaking after more people have used 960 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 961 // what comes before the finger. 962 private int putOffsetInRange(int o) { 963 int offset = o; 964 Editable text = getText(); 965 int length = text.length(); 966 // Remove whitespace from end to find "real end" 967 int realLength = length; 968 for (int i = length - 1; i >= 0; i--) { 969 if (text.charAt(i) == ' ') { 970 realLength--; 971 } else { 972 break; 973 } 974 } 975 976 // If the offset is beyond or at the end of the text, 977 // leave it alone. 978 if (offset >= realLength) { 979 return offset; 980 } 981 Editable editable = getText(); 982 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 983 // Keep walking backward! 984 offset--; 985 } 986 return offset; 987 } 988 989 private int findText(Editable text, int offset) { 990 if (text.charAt(offset) != ' ') { 991 return offset; 992 } 993 return -1; 994 } 995 996 private RecipientChip findChip(int offset) { 997 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 998 // Find the chip that contains this offset. 999 for (int i = 0; i < chips.length; i++) { 1000 RecipientChip chip = chips[i]; 1001 int start = getChipStart(chip); 1002 int end = getChipEnd(chip); 1003 if (offset >= start && offset <= end) { 1004 return chip; 1005 } 1006 } 1007 return null; 1008 } 1009 1010 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 1011 String displayText = entry.getDestination(); 1012 displayText = (String) mTokenizer.terminateToken(displayText); 1013 // Always leave a blank space at the end of a chip. 1014 int textLength = displayText.length()-1; 1015 SpannableString chipText = new SpannableString(displayText); 1016 int end = getSelectionEnd(); 1017 int start = mTokenizer.findTokenStart(getText(), end); 1018 try { 1019 chipText.setSpan(constructChipSpan(entry, start, pressed), 0, textLength, 1020 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1021 } catch (NullPointerException e) { 1022 Log.e(TAG, e.getMessage(), e); 1023 return null; 1024 } 1025 1026 return chipText; 1027 } 1028 1029 /** 1030 * When an item in the suggestions list has been clicked, create a chip from the 1031 * contact information of the selected item. 1032 */ 1033 @Override 1034 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1035 submitItemAtPosition(position); 1036 } 1037 1038 private void submitItemAtPosition(int position) { 1039 RecipientEntry entry = createValidatedEntry( 1040 (RecipientEntry)getAdapter().getItem(position)); 1041 clearComposingText(); 1042 1043 int end = getSelectionEnd(); 1044 int start = mTokenizer.findTokenStart(getText(), end); 1045 1046 Editable editable = getText(); 1047 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1048 editable.replace(start, end, createChip(entry, false)); 1049 } 1050 1051 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1052 if (item == null) { 1053 return null; 1054 } 1055 final RecipientEntry entry; 1056 // If the display name and the address are the same, or if this is a 1057 // valid contact, but the destination is invalid, then make this a fake 1058 // recipient that is editable. 1059 String destination = item.getDestination(); 1060 if (TextUtils.equals(item.getDisplayName(), destination) 1061 || (mValidator != null && !mValidator.isValid(destination))) { 1062 entry = RecipientEntry.constructFakeEntry(destination); 1063 } else { 1064 entry = item; 1065 } 1066 return entry; 1067 } 1068 1069 /** Returns a collection of contact Id for each chip inside this View. */ 1070 /* package */ Collection<Long> getContactIds() { 1071 final Set<Long> result = new HashSet<Long>(); 1072 RecipientChip[] chips = getRecipients(); 1073 if (chips != null) { 1074 for (RecipientChip chip : chips) { 1075 result.add(chip.getContactId()); 1076 } 1077 } 1078 return result; 1079 } 1080 1081 private RecipientChip[] getRecipients() { 1082 return getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1083 } 1084 1085 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1086 /* package */ Collection<Long> getDataIds() { 1087 final Set<Long> result = new HashSet<Long>(); 1088 RecipientChip [] chips = getRecipients(); 1089 if (chips != null) { 1090 for (RecipientChip chip : chips) { 1091 result.add(chip.getDataId()); 1092 } 1093 } 1094 return result; 1095 } 1096 1097 1098 @Override 1099 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1100 return false; 1101 } 1102 1103 @Override 1104 public void onDestroyActionMode(ActionMode mode) { 1105 } 1106 1107 @Override 1108 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1109 return false; 1110 } 1111 1112 /** 1113 * No chips are selectable. 1114 */ 1115 @Override 1116 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1117 return false; 1118 } 1119 1120 /** 1121 * Create the more chip. The more chip is text that replaces any chips that 1122 * do not fit in the pre-defined available space when the 1123 * RecipientEditTextView loses focus. 1124 */ 1125 private void createMoreChip() { 1126 RecipientChip[] recipients = getRecipients(); 1127 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1128 mMoreChip = null; 1129 return; 1130 } 1131 int numRecipients = recipients.length; 1132 int overage = numRecipients - CHIP_LIMIT; 1133 Editable text = getText(); 1134 // TODO: get the correct size from visual design. 1135 int width = (int) Math.floor(getWidth() * MORE_WIDTH_FACTOR); 1136 int height = getLineHeight(); 1137 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1138 Canvas canvas = new Canvas(drawable); 1139 String moreText = getResources().getString(mMoreString, overage); 1140 canvas.drawText(moreText, 0, moreText.length(), 0, height - getLayout().getLineDescent(0), 1141 getPaint()); 1142 1143 Drawable result = new BitmapDrawable(getResources(), drawable); 1144 result.setBounds(0, 0, width, height); 1145 ImageSpan moreSpan = new ImageSpan(result); 1146 Spannable spannable = getSpannable(); 1147 // Remove the overage chips. 1148 if (recipients == null || recipients.length == 0) { 1149 Log.w(TAG, 1150 "We have recipients. Tt should not be possible to have zero RecipientChips."); 1151 mMoreChip = null; 1152 return; 1153 } 1154 mRemovedSpans = new ArrayList<RecipientChip>(); 1155 int totalReplaceStart = 0; 1156 int totalReplaceEnd = 0; 1157 for (int i = numRecipients - overage; i < recipients.length; i++) { 1158 mRemovedSpans.add(recipients[i]); 1159 if (i == numRecipients - overage) { 1160 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1161 } 1162 if (i == recipients.length - 1) { 1163 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1164 } 1165 if (mTemporaryRecipients != null && !mTemporaryRecipients.contains(recipients[i])) { 1166 recipients[i].storeChipStart(spannable.getSpanStart(recipients[i])); 1167 recipients[i].storeChipEnd(spannable.getSpanEnd(recipients[i])); 1168 } 1169 spannable.removeSpan(recipients[i]); 1170 } 1171 // TODO: why would these ever be backwards? 1172 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1173 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1174 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1175 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1176 text.replace(start, end, chipText); 1177 mMoreChip = moreSpan; 1178 } 1179 1180 /** 1181 * Replace the more chip, if it exists, with all of the recipient chips it had 1182 * replaced when the RecipientEditTextView gains focus. 1183 */ 1184 private void removeMoreChip() { 1185 if (mMoreChip != null) { 1186 Spannable span = getSpannable(); 1187 span.removeSpan(mMoreChip); 1188 mMoreChip = null; 1189 // Re-add the spans that were removed. 1190 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1191 // Recreate each removed span. 1192 Editable editable = getText(); 1193 for (RecipientChip chip : mRemovedSpans) { 1194 int chipStart = chip.getStoredChipStart(); 1195 int chipEnd; 1196 String token; 1197 if (chipStart == -1) { 1198 // Need to find the location of the chip, again. 1199 token = (String)mTokenizer.terminateToken(chip.getEntry().getDestination()); 1200 chipStart = editable.toString().indexOf(token); 1201 // -1 for the space! 1202 chipEnd = chipStart + token.length() - 1; 1203 } else { 1204 chipEnd = Math.min(editable.length(), chip.getStoredChipEnd()); 1205 } 1206 if (Log.isLoggable(TAG, Log.DEBUG) && chipEnd != chip.getStoredChipEnd()) { 1207 Log.d(TAG, 1208 "Unexpectedly, the chip ended after the end of the editable text. " 1209 + "Chip End " + chip.getStoredChipEnd() 1210 + "Editable length " + editable.length()); 1211 } 1212 // Only set the span if we found a matching token. 1213 if (chipStart != -1) { 1214 editable.setSpan(chip, chipStart, chipEnd, 1215 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1216 } 1217 } 1218 mRemovedSpans.clear(); 1219 } 1220 } 1221 } 1222 1223 /** 1224 * Show specified chip as selected. If the RecipientChip is just an email address, 1225 * selecting the chip will take the contents of the chip and place it at 1226 * the end of the RecipientEditTextView for inline editing. If the 1227 * RecipientChip is a complete contact, then selecting the chip 1228 * will change the background color of the chip, show the delete icon, 1229 * and a popup window with the address in use highlighted and any other 1230 * alternate addresses for the contact. 1231 * @param currentChip Chip to select. 1232 * @return A RecipientChip in the selected state or null if the chip 1233 * just contained an email address. 1234 */ 1235 public RecipientChip selectChip(RecipientChip currentChip) { 1236 if (currentChip.getContactId() != INVALID_CONTACT) { 1237 int start = getChipStart(currentChip); 1238 int end = getChipEnd(currentChip); 1239 getSpannable().removeSpan(currentChip); 1240 RecipientChip newChip; 1241 try { 1242 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1243 } catch (NullPointerException e) { 1244 Log.e(TAG, e.getMessage(), e); 1245 return null; 1246 } 1247 Editable editable = getText(); 1248 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1249 if (start == -1 || end == -1) { 1250 Log.d(TAG, "The chip being selected no longer exists but should."); 1251 } else { 1252 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1253 } 1254 newChip.setSelected(true); 1255 if (newChip.getEntry().getContactId() == INVALID_CONTACT) { 1256 scrollLineIntoView(getLayout().getLineForOffset( 1257 getChipStart(newChip))); 1258 } 1259 showAlternates(newChip, mAlternatesPopup, getWidth(), getContext()); 1260 return newChip; 1261 } else { 1262 CharSequence text = currentChip.getValue(); 1263 Editable editable = getText(); 1264 removeChip(currentChip); 1265 editable.append(text); 1266 setCursorVisible(true); 1267 setSelection(editable.length()); 1268 return null; 1269 } 1270 } 1271 1272 1273 /** 1274 * Remove selection from this chip. Unselecting a RecipientChip will render 1275 * the chip without a delete icon and with an unfocused background. This 1276 * is called when the RecipientChip no longer has focus. 1277 */ 1278 public void unselectChip(RecipientChip chip) { 1279 int start = getChipStart(chip); 1280 int end = getChipEnd(chip); 1281 Editable editable = getText(); 1282 mSelectedChip = null; 1283 if (start == -1 || end == -1) { 1284 Log.e(TAG, "The chip being unselected no longer exists but should."); 1285 } else { 1286 getSpannable().removeSpan(chip); 1287 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1288 editable.removeSpan(chip); 1289 try { 1290 editable.setSpan(constructChipSpan(chip.getEntry(), start, false), start, end, 1291 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1292 } catch (NullPointerException e) { 1293 Log.e(TAG, e.getMessage(), e); 1294 } 1295 } 1296 setCursorVisible(true); 1297 setSelection(editable.length()); 1298 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1299 mAlternatesPopup.dismiss(); 1300 } 1301 } 1302 1303 1304 /** 1305 * Return whether this chip contains the position passed in. 1306 */ 1307 public boolean matchesChip(RecipientChip chip, int offset) { 1308 int start = getChipStart(chip); 1309 int end = getChipEnd(chip); 1310 if (start == -1 || end == -1) { 1311 return false; 1312 } 1313 return (offset >= start && offset <= end); 1314 } 1315 1316 1317 /** 1318 * Return whether a touch event was inside the delete target of 1319 * a selected chip. It is in the delete target if: 1320 * 1) the x and y points of the event are within the 1321 * delete assset. 1322 * 2) the point tapped would have caused a cursor to appear 1323 * right after the selected chip. 1324 * @return boolean 1325 */ 1326 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1327 // Figure out the bounds of this chip and whether or not 1328 // the user clicked in the X portion. 1329 return chip.isSelected() && offset == getChipEnd(chip); 1330 } 1331 1332 /** 1333 * Remove the chip and any text associated with it from the RecipientEditTextView. 1334 */ 1335 private void removeChip(RecipientChip chip) { 1336 Spannable spannable = getSpannable(); 1337 int spanStart = spannable.getSpanStart(chip); 1338 int spanEnd = spannable.getSpanEnd(chip); 1339 Editable text = getText(); 1340 int toDelete = spanEnd; 1341 boolean wasSelected = chip == mSelectedChip; 1342 // Clear that there is a selected chip before updating any text. 1343 if (wasSelected) { 1344 mSelectedChip = null; 1345 } 1346 // Always remove trailing spaces when removing a chip. 1347 while (toDelete >= 0 && toDelete < text.length() && text.charAt(toDelete) == ' ') { 1348 toDelete++; 1349 } 1350 spannable.removeSpan(chip); 1351 text.delete(spanStart, toDelete); 1352 if (wasSelected) { 1353 clearSelectedChip(); 1354 } 1355 } 1356 1357 /** 1358 * Replace this currently selected chip with a new chip 1359 * that uses the contact data provided. 1360 */ 1361 public void replaceChip(RecipientChip chip, RecipientEntry entry) { 1362 boolean wasSelected = chip == mSelectedChip; 1363 if (wasSelected) { 1364 mSelectedChip = null; 1365 } 1366 int start = getChipStart(chip); 1367 int end = getChipEnd(chip); 1368 getSpannable().removeSpan(chip); 1369 Editable editable = getText(); 1370 CharSequence chipText = createChip(entry, false); 1371 if (start == -1 || end == -1) { 1372 Log.e(TAG, "The chip to replace does not exist but should."); 1373 editable.insert(0, chipText); 1374 } else { 1375 // There may be a space to replace with this chip's new associated 1376 // space. Check for it. 1377 int toReplace = end; 1378 while (toReplace >= 0 && toReplace < editable.length() 1379 && editable.charAt(toReplace) == ' ') { 1380 toReplace++; 1381 } 1382 editable.replace(start, toReplace, chipText); 1383 } 1384 setCursorVisible(true); 1385 if (wasSelected) { 1386 clearSelectedChip(); 1387 } 1388 } 1389 1390 /** 1391 * Handle click events for a chip. When a selected chip receives a click 1392 * event, see if that event was in the delete icon. If so, delete it. 1393 * Otherwise, unselect the chip. 1394 */ 1395 public void onClick(RecipientChip chip, int offset, float x, float y) { 1396 if (chip.isSelected()) { 1397 if (isInDelete(chip, offset, x, y)) { 1398 removeChip(chip); 1399 } else { 1400 clearSelectedChip(); 1401 } 1402 } 1403 } 1404 1405 private boolean chipsPending() { 1406 return mPendingChipsCount > 0 || (mRemovedSpans != null && mRemovedSpans.size() > 0); 1407 } 1408 1409 private class RecipientTextWatcher implements TextWatcher { 1410 @Override 1411 public void afterTextChanged(Editable s) { 1412 // Get whether there are any recipients pending addition to the view. 1413 // If there are, don't do anything in the text watcher. 1414 if (chipsPending()) { 1415 return; 1416 } 1417 if (mSelectedChip != null) { 1418 setCursorVisible(true); 1419 setSelection(getText().length()); 1420 clearSelectedChip(); 1421 } 1422 int length = s.length(); 1423 // Make sure there is content there to parse and that it is 1424 // not just the commit character. 1425 if (length > 1) { 1426 char last; 1427 int end = getSelectionEnd() == 0 ? 0 : getSelectionEnd() - 1; 1428 int len = length() - 1; 1429 if (end != len) { 1430 last = s.charAt(end); 1431 } else { 1432 last = s.charAt(len); 1433 } 1434 if (last == COMMIT_CHAR_SEMICOLON || last == COMMIT_CHAR_COMMA) { 1435 commitByCharacter(); 1436 } else if (last == COMMIT_CHAR_SPACE) { 1437 // Check if this is a valid email address. If it is, 1438 // commit it. 1439 String text = getText().toString(); 1440 int tokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 1441 String sub = text.substring(tokenStart, mTokenizer.findTokenEnd(text, 1442 tokenStart)); 1443 if (mValidator != null && mValidator.isValid(sub)) { 1444 commitByCharacter(); 1445 } 1446 } 1447 } 1448 } 1449 1450 @Override 1451 public void onTextChanged(CharSequence s, int start, int before, int count) { 1452 } 1453 1454 @Override 1455 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 1456 } 1457 } 1458 1459 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 1460 private RecipientChip createFreeChip(RecipientEntry entry) { 1461 String displayText = entry.getDestination(); 1462 displayText = (String) mTokenizer.terminateToken(displayText); 1463 try { 1464 return constructChipSpan(entry, -1, false); 1465 } catch (NullPointerException e) { 1466 Log.e(TAG, e.getMessage(), e); 1467 return null; 1468 } 1469 } 1470 1471 @Override 1472 protected Void doInBackground(Void... params) { 1473 if (mIndividualReplacements != null) { 1474 mIndividualReplacements.cancel(true); 1475 } 1476 // For each chip in the list, look up the matching contact. 1477 // If there is a match, replace that chip with the matching 1478 // chip. 1479 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 1480 RecipientChip[] existingChips = getSpannable().getSpans(0, getText().length(), 1481 RecipientChip.class); 1482 for (int i = 0; i < existingChips.length; i++) { 1483 originalRecipients.add(existingChips[i]); 1484 } 1485 if (mRemovedSpans != null) { 1486 originalRecipients.addAll(mRemovedSpans); 1487 } 1488 String[] addresses = new String[originalRecipients.size()]; 1489 for (int i = 0; i < originalRecipients.size(); i++) { 1490 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1491 } 1492 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1493 .getMatchingRecipients(getContext(), addresses); 1494 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 1495 for (final RecipientChip temp : originalRecipients) { 1496 RecipientEntry entry = null; 1497 if (temp.getEntry().getContactId() == INVALID_CONTACT 1498 && getSpannable().getSpanStart(temp) != -1) { 1499 // Replace this. 1500 entry = createValidatedEntry(entries.get(temp.getEntry().getDestination())); 1501 } 1502 if (entry != null) { 1503 replacements.add(createFreeChip(entry)); 1504 } else { 1505 replacements.add(temp); 1506 } 1507 } 1508 if (replacements != null && replacements.size() > 0) { 1509 mHandler.post(new Runnable() { 1510 @Override 1511 public void run() { 1512 SpannableStringBuilder text = new SpannableStringBuilder(getText() 1513 .toString()); 1514 Editable oldText = getText(); 1515 int start, end; 1516 int i = 0; 1517 for (RecipientChip chip : originalRecipients) { 1518 start = oldText.getSpanStart(chip); 1519 if (start != -1) { 1520 end = oldText.getSpanEnd(chip); 1521 text.removeSpan(chip); 1522 // Leave a spot for the space! 1523 text.setSpan(replacements.get(i), start, end, 1524 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1525 } 1526 i++; 1527 } 1528 Editable editable = getText(); 1529 editable.clear(); 1530 editable.insert(0, text); 1531 originalRecipients.clear(); 1532 } 1533 }); 1534 } 1535 return null; 1536 } 1537 } 1538 1539 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 1540 @SuppressWarnings("unchecked") 1541 @Override 1542 protected Void doInBackground(Object... params) { 1543 // For each chip in the list, look up the matching contact. 1544 // If there is a match, replace that chip with the matching 1545 // chip. 1546 final ArrayList<RecipientChip> originalRecipients = 1547 (ArrayList<RecipientChip>) params[0]; 1548 String[] addresses = new String[originalRecipients.size()]; 1549 for (int i = 0; i < originalRecipients.size(); i++) { 1550 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1551 } 1552 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1553 .getMatchingRecipients(getContext(), addresses); 1554 for (final RecipientChip temp : originalRecipients) { 1555 if (temp.getEntry().getContactId() == INVALID_CONTACT 1556 && getSpannable().getSpanStart(temp) != -1) { 1557 // Replace this. 1558 final RecipientEntry entry = createValidatedEntry(entries.get(temp.getEntry() 1559 .getDestination())); 1560 if (entry != null) { 1561 mHandler.post(new Runnable() { 1562 @Override 1563 public void run() { 1564 replaceChip(temp, entry); 1565 } 1566 }); 1567 } 1568 } 1569 } 1570 return null; 1571 } 1572 } 1573} 1574