RecipientEditTextView.java revision 32366d47357b32ddd62efc03e50fc10819acd866
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.Filterable; 57import android.widget.ListAdapter; 58import android.widget.ListPopupWindow; 59import android.widget.ListView; 60import android.widget.MultiAutoCompleteTextView; 61import android.widget.ScrollView; 62 63import java.util.Collection; 64import java.util.HashMap; 65import java.util.HashSet; 66import java.util.Set; 67 68import java.util.ArrayList; 69 70/** 71 * RecipientEditTextView is an auto complete text view for use with applications 72 * that use the new Chips UI for addressing a message to recipients. 73 */ 74public class RecipientEditTextView extends MultiAutoCompleteTextView implements 75 OnItemClickListener, Callback, RecipientAlternatesAdapter.OnCheckedItemChangedListener { 76 77 private static final String TAG = "RecipientEditTextView"; 78 79 // TODO: get correct number/ algorithm from with UX. 80 private static final int CHIP_LIMIT = 2; 81 82 // TODO: get correct size from UX. 83 private static final float MORE_WIDTH_FACTOR = 0.25f; 84 85 private Drawable mChipBackground = null; 86 87 private Drawable mChipDelete = null; 88 89 private int mChipPadding; 90 91 private Tokenizer mTokenizer; 92 93 private Drawable mChipBackgroundPressed; 94 95 private RecipientChip mSelectedChip; 96 97 private int mAlternatesLayout; 98 99 private Bitmap mDefaultContactPhoto; 100 101 private ImageSpan mMoreChip; 102 103 private int mMoreString; 104 105 106 private final ArrayList<String> mPendingChips = new ArrayList<String>(); 107 108 private float mChipHeight; 109 110 private float mChipFontSize; 111 112 private Validator mValidator; 113 114 private Drawable mInvalidChipBackground; 115 116 private Handler mHandler; 117 118 private static int DISMISS = "dismiss".hashCode(); 119 120 private static final long DISMISS_DELAY = 300; 121 122 private int mPendingChipsCount = 0; 123 124 private static int sSelectedTextColor = -1; 125 126 private static final char COMMIT_CHAR_COMMA = ','; 127 128 private static final char COMMIT_CHAR_SEMICOLON = ';'; 129 130 private static final char COMMIT_CHAR_SPACE = ' '; 131 132 private ListPopupWindow mAlternatesPopup; 133 134 private ListPopupWindow mAddressPopup; 135 136 private ArrayList<RecipientChip> mTemporaryRecipients; 137 138 private ArrayList<RecipientChip> mRemovedSpans; 139 140 /** 141 * Used with {@link mAlternatesPopup}. Handles clicks to alternate addresses for a selected chip. 142 */ 143 private OnItemClickListener mAlternatesListener; 144 145 private int mCheckedItem; 146 private TextWatcher mTextWatcher; 147 148 private ScrollView mScrollView; 149 150 private boolean mTried; 151 152 private final Runnable mAddTextWatcher = new Runnable() { 153 @Override 154 public void run() { 155 if (mTextWatcher == null) { 156 mTextWatcher = new RecipientTextWatcher(); 157 addTextChangedListener(mTextWatcher); 158 } 159 } 160 }; 161 162 private IndividualReplacementTask mIndividualReplacements; 163 164 private Runnable mHandlePendingChips = new Runnable() { 165 166 @Override 167 public void run() { 168 handlePendingChips(); 169 mHandler.post(mAddTextWatcher); 170 } 171 172 }; 173 174 public RecipientEditTextView(Context context, AttributeSet attrs) { 175 super(context, attrs); 176 if (sSelectedTextColor == -1) { 177 sSelectedTextColor = context.getResources().getColor(android.R.color.white); 178 } 179 mAlternatesPopup = new ListPopupWindow(context); 180 mAddressPopup = new ListPopupWindow(context); 181 mAlternatesListener = new OnItemClickListener() { 182 @Override 183 public void onItemClick(AdapterView<?> adapterView,View view, int position, 184 long rowId) { 185 mAlternatesPopup.setOnItemClickListener(null); 186 replaceChip(mSelectedChip, ((RecipientAlternatesAdapter) adapterView.getAdapter()) 187 .getRecipientEntry(position)); 188 Message delayed = Message.obtain(mHandler, DISMISS); 189 delayed.obj = mAlternatesPopup; 190 mHandler.sendMessageDelayed(delayed, DISMISS_DELAY); 191 clearComposingText(); 192 } 193 }; 194 setSuggestionsEnabled(false); 195 setOnItemClickListener(this); 196 setCustomSelectionActionModeCallback(this); 197 mHandler = new Handler() { 198 @Override 199 public void handleMessage(Message msg) { 200 if (msg.what == DISMISS) { 201 ((ListPopupWindow) msg.obj).dismiss(); 202 return; 203 } 204 super.handleMessage(msg); 205 } 206 }; 207 } 208 209 @Override 210 public <T extends ListAdapter & Filterable> void setAdapter(T adapter) { 211 super.setAdapter(adapter); 212 if (adapter == null) { 213 return; 214 } 215 } 216 217 @Override 218 public void onSelectionChanged(int start, int end) { 219 // When selection changes, see if it is inside the chips area. 220 // If so, move the cursor back after the chips again. 221 Spannable span = getSpannable(); 222 int textLength = getText().length(); 223 RecipientChip[] chips = span.getSpans(start, textLength, RecipientChip.class); 224 if (chips != null && chips.length > 0) { 225 if (chips != null && chips.length > 0) { 226 // Grab the last chip and set the cursor to after it. 227 setSelection(Math.min(span.getSpanEnd(chips[chips.length - 1]) + 1, textLength)); 228 } 229 } 230 super.onSelectionChanged(start, end); 231 } 232 233 /** 234 * Convenience method: Append the specified text slice to the TextView's 235 * display buffer, upgrading it to BufferType.EDITABLE if it was 236 * not already editable. Commas are excluded as they are added automatically 237 * by the view. 238 */ 239 @Override 240 public void append(CharSequence text, int start, int end) { 241 // We don't care about watching text changes while appending. 242 if (mTextWatcher != null) { 243 removeTextChangedListener(mTextWatcher); 244 } 245 super.append(text, start, end); 246 if (!TextUtils.isEmpty(text) && TextUtils.getTrimmedLength(text) > 0) { 247 final String displayString = (String) text; 248 int seperatorPos = displayString.indexOf(COMMIT_CHAR_COMMA); 249 if (seperatorPos != 0 && !TextUtils.isEmpty(displayString) 250 && TextUtils.getTrimmedLength(displayString) > 0) { 251 mPendingChipsCount++; 252 mPendingChips.add((String)text); 253 } 254 } 255 // Put a message on the queue to make sure we ALWAYS handle pending chips. 256 if (mPendingChipsCount > 0) { 257 postHandlePendingChips(); 258 } 259 } 260 261 @Override 262 public void onFocusChanged(boolean hasFocus, int direction, Rect previous) { 263 if (!hasFocus) { 264 shrink(); 265 } else { 266 expand(); 267 scrollLineIntoView(getLineCount()); 268 } 269 super.onFocusChanged(hasFocus, direction, previous); 270 } 271 272 private void shrink() { 273 if (mSelectedChip != null) { 274 clearSelectedChip(); 275 } else { 276 // Reset any pending chips as they would have been handled 277 // when the field lost focus. 278 if (mPendingChipsCount > 0) { 279 postHandlePendingChips(); 280 } else { 281 Editable editable = getText(); 282 int end = getSelectionEnd(); 283 int start = mTokenizer.findTokenStart(editable, end); 284 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 285 if ((chips == null || chips.length == 0)) { 286 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 287 // In the middle of chip; treat this as an edit 288 // and commit the whole token. 289 if (whatEnd != getSelectionEnd()) { 290 handleEdit(start, whatEnd); 291 } else { 292 commitChip(start, end, editable); 293 } 294 } 295 } 296 mHandler.post(mAddTextWatcher); 297 } 298 createMoreChip(); 299 } 300 301 private void expand() { 302 removeMoreChip(); 303 setCursorVisible(true); 304 Editable text = getText(); 305 setSelection(text != null && text.length() > 0 ? text.length() : 0); 306 // If there are any temporary chips, try replacing them now that the user 307 // has expanded the field. 308 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0) { 309 new RecipientReplacementTask().execute(); 310 mTemporaryRecipients = null; 311 } 312 } 313 314 private CharSequence ellipsizeText(CharSequence text, TextPaint paint, float maxWidth) { 315 paint.setTextSize(mChipFontSize); 316 if (maxWidth <= 0 && Log.isLoggable(TAG, Log.DEBUG)) { 317 Log.d(TAG, "Max width is negative: " + maxWidth); 318 } 319 return TextUtils.ellipsize(text, paint, maxWidth, 320 TextUtils.TruncateAt.END); 321 } 322 323 private Bitmap createSelectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 324 // Ellipsize the text so that it takes AT MOST the entire width of the 325 // autocomplete text entry area. Make sure to leave space for padding 326 // on the sides. 327 int height = (int) mChipHeight; 328 int deleteWidth = height; 329 CharSequence ellipsizedText = ellipsizeText(contact.getDisplayName(), paint, 330 calculateAvailableWidth(true) - deleteWidth); 331 332 // Make sure there is a minimum chip width so the user can ALWAYS 333 // tap a chip without difficulty. 334 int width = Math.max(deleteWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 335 ellipsizedText.length())) 336 + (mChipPadding * 2) + deleteWidth); 337 338 // Create the background of the chip. 339 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 340 Canvas canvas = new Canvas(tmpBitmap); 341 if (mChipBackgroundPressed != null) { 342 mChipBackgroundPressed.setBounds(0, 0, width, height); 343 mChipBackgroundPressed.draw(canvas); 344 paint.setColor(sSelectedTextColor); 345 // Align the display text with where the user enters text. 346 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, height 347 - Math.abs(height - mChipFontSize)/2, paint); 348 // Make the delete a square. 349 mChipDelete.setBounds(width - deleteWidth, 0, width, height); 350 mChipDelete.draw(canvas); 351 } else { 352 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 353 } 354 return tmpBitmap; 355 } 356 357 358 /** 359 * Get the background drawable for a RecipientChip. 360 */ 361 public Drawable getChipBackground(RecipientEntry contact) { 362 return (mValidator != null && mValidator.isValid(contact.getDestination())) ? 363 mChipBackground : mInvalidChipBackground; 364 } 365 366 private Bitmap createUnselectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 367 // Ellipsize the text so that it takes AT MOST the entire width of the 368 // autocomplete text entry area. Make sure to leave space for padding 369 // on the sides. 370 int height = (int) mChipHeight; 371 int iconWidth = height; 372 CharSequence ellipsizedText = ellipsizeText(contact.getDisplayName(), paint, 373 calculateAvailableWidth(false) - iconWidth); 374 // Make sure there is a minimum chip width so the user can ALWAYS 375 // tap a chip without difficulty. 376 int width = Math.max(iconWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 377 ellipsizedText.length())) 378 + (mChipPadding * 2) + iconWidth); 379 380 // Create the background of the chip. 381 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 382 Canvas canvas = new Canvas(tmpBitmap); 383 Drawable background = getChipBackground(contact); 384 if (background != null) { 385 background.setBounds(0, 0, width, height); 386 background.draw(canvas); 387 388 // Don't draw photos for recipients that have been typed in. 389 if (contact.getContactId() != RecipientEntry.INVALID_CONTACT) { 390 byte[] photoBytes = contact.getPhotoBytes(); 391 // There may not be a photo yet if anything but the first contact address 392 // was selected. 393 if (photoBytes == null && contact.getPhotoThumbnailUri() != null) { 394 // TODO: cache this in the recipient entry? 395 ((BaseRecipientAdapter) getAdapter()).fetchPhoto(contact, contact 396 .getPhotoThumbnailUri()); 397 photoBytes = contact.getPhotoBytes(); 398 } 399 400 Bitmap photo; 401 if (photoBytes != null) { 402 photo = BitmapFactory.decodeByteArray(photoBytes, 0, photoBytes.length); 403 } else { 404 // TODO: can the scaled down default photo be cached? 405 photo = mDefaultContactPhoto; 406 } 407 // Draw the photo on the left side. 408 Matrix matrix = new Matrix(); 409 RectF src = new RectF(0, 0, photo.getWidth(), photo.getHeight()); 410 RectF dst = new RectF(width - iconWidth, 0, width, height); 411 matrix.setRectToRect(src, dst, Matrix.ScaleToFit.CENTER); 412 canvas.drawBitmap(photo, matrix, paint); 413 } else { 414 // Don't leave any space for the icon. It isn't being drawn. 415 iconWidth = 0; 416 } 417 418 // Align the display text with where the user enters text. 419 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 420 height - Math.abs(height - mChipFontSize) / 2, paint); 421 } else { 422 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 423 } 424 return tmpBitmap; 425 } 426 427 public RecipientChip constructChipSpan(RecipientEntry contact, int offset, boolean pressed) 428 throws NullPointerException { 429 if (mChipBackground == null) { 430 throw new NullPointerException( 431 "Unable to render any chips as setChipDimensions was not called."); 432 } 433 Layout layout = getLayout(); 434 435 TextPaint paint = getPaint(); 436 float defaultSize = paint.getTextSize(); 437 int defaultColor = paint.getColor(); 438 439 Bitmap tmpBitmap; 440 if (pressed) { 441 tmpBitmap = createSelectedChip(contact, paint, layout); 442 443 } else { 444 tmpBitmap = createUnselectedChip(contact, paint, layout); 445 } 446 447 // Pass the full text, un-ellipsized, to the chip. 448 Drawable result = new BitmapDrawable(getResources(), tmpBitmap); 449 result.setBounds(0, 0, tmpBitmap.getWidth(), tmpBitmap.getHeight()); 450 RecipientChip recipientChip = new RecipientChip(result, contact, offset); 451 // Return text to the original size. 452 paint.setTextSize(defaultSize); 453 paint.setColor(defaultColor); 454 return recipientChip; 455 } 456 457 /** 458 * Calculate the bottom of the line the chip will be located on using: 459 * 1) which line the chip appears on 460 * 2) the height of a chip 461 * 3) padding built into the edit text view 462 */ 463 private int calculateOffsetFromBottom(int line) { 464 // Line offsets start at zero. 465 int actualLine = getLineCount() - (line + 1); 466 return -((actualLine * ((int)mChipHeight) + getPaddingBottom()) + getPaddingTop()); 467 } 468 469 /** 470 * Get the max amount of space a chip can take up. The formula takes into 471 * account the width of the EditTextView, any view padding, and padding 472 * that will be added to the chip. 473 */ 474 private float calculateAvailableWidth(boolean pressed) { 475 return getWidth() - getPaddingLeft() - getPaddingRight() - (mChipPadding * 2); 476 } 477 478 /** 479 * Set all chip dimensions and resources. This has to be done from the 480 * application as this is a static library. 481 * @param chipBackground 482 * @param chipBackgroundPressed 483 * @param invalidChip 484 * @param chipDelete 485 * @param defaultContact 486 * @param moreResource 487 * @param alternatesLayout 488 * @param chipHeight 489 * @param padding Padding around the text in a chip 490 */ 491 public void setChipDimensions(Drawable chipBackground, Drawable chipBackgroundPressed, 492 Drawable invalidChip, Drawable chipDelete, Bitmap defaultContact, int moreResource, 493 int alternatesLayout, float chipHeight, float padding, 494 float chipFontSize) { 495 mChipBackground = chipBackground; 496 mChipBackgroundPressed = chipBackgroundPressed; 497 mChipDelete = chipDelete; 498 mChipPadding = (int) padding; 499 mAlternatesLayout = alternatesLayout; 500 mDefaultContactPhoto = defaultContact; 501 mMoreString = moreResource; 502 mChipHeight = chipHeight; 503 mChipFontSize = chipFontSize; 504 mInvalidChipBackground = invalidChip; 505 } 506 507 @Override 508 public void onSizeChanged(int width, int height, int oldw, int oldh) { 509 super.onSizeChanged(width, height, oldw, oldh); 510 if (width != 0 && height != 0 && mPendingChipsCount > 0) { 511 postHandlePendingChips(); 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 postHandlePendingChips() { 527 mHandler.removeCallbacks(mHandlePendingChips); 528 mHandler.post(mHandlePendingChips); 529 } 530 531 private void handlePendingChips() { 532 if (mPendingChipsCount <= 0) { 533 return; 534 } 535 if (getWidth() <= 0) { 536 // The widget has not been sized yet. 537 // This will be called as a result of onSizeChanged 538 // at a later point. 539 return; 540 } 541 synchronized (mPendingChips) { 542 mTemporaryRecipients = new ArrayList<RecipientChip>(mPendingChipsCount); 543 Editable editable = getText(); 544 // Tokenize! 545 for (int i = 0; i < mPendingChips.size(); i++) { 546 String current = mPendingChips.get(i); 547 int tokenStart = editable.toString().indexOf(current); 548 int tokenEnd = tokenStart + current.length(); 549 if (tokenStart >= 0) { 550 // When we have a valid token, include it with the token 551 // to the left. 552 if (tokenEnd < editable.length() - 2 553 && editable.charAt(tokenEnd) == COMMIT_CHAR_COMMA) { 554 tokenEnd++; 555 } 556 createReplacementChip(tokenStart, tokenEnd, editable); 557 } 558 mPendingChipsCount--; 559 } 560 sanitizeSpannable(); 561 if (mTemporaryRecipients != null 562 && mTemporaryRecipients.size() <= RecipientAlternatesAdapter.MAX_LOOKUPS) { 563 if (hasFocus() || mTemporaryRecipients.size() < CHIP_LIMIT) { 564 new RecipientReplacementTask().execute(); 565 mTemporaryRecipients = null; 566 } else { 567 // Create the "more" chip 568 mIndividualReplacements = new IndividualReplacementTask(); 569 mIndividualReplacements.execute(new ArrayList<RecipientChip>( 570 mTemporaryRecipients.subList(0, CHIP_LIMIT))); 571 572 createMoreChip(); 573 } 574 } else { 575 // There are too many recipients to look up, so just fall back 576 // to 577 // showing addresses for all of them. 578 mTemporaryRecipients = null; 579 createMoreChip(); 580 } 581 mPendingChipsCount = 0; 582 mPendingChips.clear(); 583 } 584 } 585 586 /** 587 * Remove any characters after the last valid chip. 588 */ 589 private void sanitizeSpannable() { 590 // Find the last chip; eliminate any commit characters after it. 591 RecipientChip[] chips = getRecipients(); 592 if (chips != null && chips.length > 0) { 593 int end; 594 ImageSpan lastSpan; 595 if (mMoreChip != null) { 596 lastSpan = mMoreChip; 597 } else { 598 lastSpan = chips[chips.length - 1]; 599 } 600 end = getSpannable().getSpanEnd(lastSpan); 601 Editable editable = getText(); 602 int length = editable.length(); 603 if (length > end) { 604 // See what characters occur after that and eliminate them. 605 if (Log.isLoggable(TAG, Log.DEBUG)) { 606 Log.d(TAG, "There were extra characters after the last tokenizable entry." 607 + editable); 608 } 609 editable.delete(end + 1, length); 610 } 611 } 612 } 613 614 /** 615 * Create a chip that represents just the email address of a recipient. At some later 616 * point, this chip will be attached to a real contact entry, if one exists. 617 */ 618 private void createReplacementChip(int tokenStart, int tokenEnd, Editable editable) { 619 if (alreadyHasChip(tokenStart, tokenEnd)) { 620 // There is already a chip present at this location. 621 // Don't recreate it. 622 return; 623 } 624 String token = editable.toString().substring(tokenStart, tokenEnd); 625 int commitCharIndex = token.trim().lastIndexOf(COMMIT_CHAR_COMMA); 626 if (commitCharIndex == token.length() - 1) { 627 token = token.substring(0, token.length() - 1); 628 } 629 RecipientEntry entry = createTokenizedEntry(token); 630 String destText = entry.getDestination(); 631 destText = (String) mTokenizer.terminateToken(destText); 632 // Always leave a blank space at the end of a chip. 633 int textLength = destText.length() - 1; 634 SpannableString chipText = new SpannableString(destText); 635 int end = getSelectionEnd(); 636 int start = mTokenizer.findTokenStart(getText(), end); 637 RecipientChip chip = null; 638 try { 639 chip = constructChipSpan(entry, start, false); 640 chipText.setSpan(chip, 0, textLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 641 } catch (NullPointerException e) { 642 Log.e(TAG, e.getMessage(), e); 643 } 644 645 editable.replace(tokenStart, tokenEnd, chipText); 646 // Add this chip to the list of entries "to replace" 647 if (chip != null) { 648 mTemporaryRecipients.add(chip); 649 } 650 } 651 652 private RecipientEntry createTokenizedEntry(String token) { 653 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(token); 654 String display = null; 655 if (tokens != null && tokens.length > 0) { 656 display = tokens[0].getName(); 657 if (!TextUtils.isEmpty(display)) { 658 return RecipientEntry.constructGeneratedEntry(display, token); 659 } 660 display = tokens[0].getAddress(); 661 if (!TextUtils.isEmpty(display)) { 662 return RecipientEntry.constructGeneratedEntry(display, token); 663 } 664 } 665 return RecipientEntry.constructFakeEntry(token); 666 } 667 668 private String tokenizeAddress(String destination) { 669 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(destination); 670 if (tokens != null && tokens.length > 0) { 671 return tokens[0].getAddress(); 672 } 673 return destination; 674 } 675 676 @Override 677 public void setTokenizer(Tokenizer tokenizer) { 678 mTokenizer = tokenizer; 679 super.setTokenizer(mTokenizer); 680 } 681 682 @Override 683 public void setValidator(Validator validator) { 684 mValidator = validator; 685 super.setValidator(validator); 686 } 687 688 /** 689 * We cannot use the default mechanism for replaceText. Instead, 690 * we override onItemClickListener so we can get all the associated 691 * contact information including display text, address, and id. 692 */ 693 @Override 694 protected void replaceText(CharSequence text) { 695 return; 696 } 697 698 /** 699 * Dismiss any selected chips when the back key is pressed. 700 */ 701 @Override 702 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 703 if (keyCode == KeyEvent.KEYCODE_BACK) { 704 clearSelectedChip(); 705 } 706 return super.onKeyPreIme(keyCode, event); 707 } 708 709 /** 710 * Monitor key presses in this view to see if the user types 711 * any commit keys, which consist of ENTER, TAB, or DPAD_CENTER. 712 * If the user has entered text that has contact matches and types 713 * a commit key, create a chip from the topmost matching contact. 714 * If the user has entered text that has no contact matches and types 715 * a commit key, then create a chip from the text they have entered. 716 */ 717 @Override 718 public boolean onKeyUp(int keyCode, KeyEvent event) { 719 switch (keyCode) { 720 case KeyEvent.KEYCODE_ENTER: 721 case KeyEvent.KEYCODE_DPAD_CENTER: 722 if (event.hasNoModifiers()) { 723 if (commitDefault()) { 724 return true; 725 } 726 if (mSelectedChip != null) { 727 clearSelectedChip(); 728 return true; 729 } else if (focusNext()) { 730 return true; 731 } 732 } 733 break; 734 case KeyEvent.KEYCODE_TAB: 735 if (event.hasNoModifiers()) { 736 if (mSelectedChip != null) { 737 clearSelectedChip(); 738 } else { 739 commitDefault(); 740 } 741 if (focusNext()) { 742 return true; 743 } 744 } 745 } 746 return super.onKeyUp(keyCode, event); 747 } 748 749 private boolean focusNext() { 750 View next = focusSearch(View.FOCUS_DOWN); 751 if (next != null) { 752 next.requestFocus(); 753 return true; 754 } 755 return false; 756 } 757 758 /** 759 * Create a chip from the default selection. If the popup is showing, the 760 * default is the first item in the popup suggestions list. Otherwise, it is 761 * whatever the user had typed in. End represents where the the tokenizer 762 * should search for a token to turn into a chip. 763 * @return If a chip was created from a real contact. 764 */ 765 private boolean commitDefault() { 766 Editable editable = getText(); 767 int end = getSelectionEnd(); 768 int start = mTokenizer.findTokenStart(editable, end); 769 770 if (shouldCreateChip(start, end)) { 771 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 772 // In the middle of chip; treat this as an edit 773 // and commit the whole token. 774 if (whatEnd != getSelectionEnd()) { 775 handleEdit(start, whatEnd); 776 return true; 777 } 778 return commitChip(start, end , editable); 779 } 780 return false; 781 } 782 783 private void commitByCharacter() { 784 Editable editable = getText(); 785 int end = getSelectionEnd(); 786 int start = mTokenizer.findTokenStart(editable, end); 787 if (shouldCreateChip(start, end)) { 788 commitChip(start, end, editable); 789 } 790 setSelection(getText().length()); 791 } 792 793 private boolean commitChip(int start, int end, Editable editable) { 794 if (getAdapter().getCount() > 0 && enoughToFilter()) { 795 // choose the first entry. 796 submitItemAtPosition(0); 797 dismissDropDown(); 798 return true; 799 } else { 800 int tokenEnd = mTokenizer.findTokenEnd(editable, start); 801 String text = editable.toString().substring(start, tokenEnd).trim(); 802 clearComposingText(); 803 if (text != null && text.length() > 0 && !text.equals(" ")) { 804 RecipientEntry entry = createTokenizedEntry(text); 805 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 806 CharSequence chipText = createChip(entry, false); 807 editable.replace(start, end, chipText); 808 dismissDropDown(); 809 return true; 810 } 811 } 812 return false; 813 } 814 815 private boolean shouldCreateChip(int start, int end) { 816 return hasFocus() && enoughToFilter() && !alreadyHasChip(start, end); 817 } 818 819 private boolean alreadyHasChip(int start, int end) { 820 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 821 if ((chips == null || chips.length == 0)) { 822 return false; 823 } 824 return true; 825 } 826 827 private void handleEdit(int start, int end) { 828 // This is in the middle of a chip, so select out the whole chip 829 // and commit it. 830 Editable editable = getText(); 831 setSelection(end); 832 String text = getText().toString().substring(start, end); 833 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 834 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 835 CharSequence chipText = createChip(entry, false); 836 editable.replace(start, getSelectionEnd(), chipText); 837 dismissDropDown(); 838 } 839 840 /** 841 * If there is a selected chip, delegate the key events 842 * to the selected chip. 843 */ 844 @Override 845 public boolean onKeyDown(int keyCode, KeyEvent event) { 846 if (mSelectedChip != null && keyCode == KeyEvent.KEYCODE_DEL) { 847 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 848 mAlternatesPopup.dismiss(); 849 } 850 removeChip(mSelectedChip); 851 } 852 853 if (keyCode == KeyEvent.KEYCODE_ENTER && event.hasNoModifiers()) { 854 return true; 855 } 856 857 return super.onKeyDown(keyCode, event); 858 } 859 860 private Spannable getSpannable() { 861 return getText(); 862 } 863 864 private int getChipStart(RecipientChip chip) { 865 return getSpannable().getSpanStart(chip); 866 } 867 868 private int getChipEnd(RecipientChip chip) { 869 return getSpannable().getSpanEnd(chip); 870 } 871 872 /** 873 * Instead of filtering on the entire contents of the edit box, 874 * this subclass method filters on the range from 875 * {@link Tokenizer#findTokenStart} to {@link #getSelectionEnd} 876 * if the length of that range meets or exceeds {@link #getThreshold} 877 * and makes sure that the range is not already a Chip. 878 */ 879 @Override 880 protected void performFiltering(CharSequence text, int keyCode) { 881 if (enoughToFilter()) { 882 int end = getSelectionEnd(); 883 int start = mTokenizer.findTokenStart(text, end); 884 // If this is a RecipientChip, don't filter 885 // on its contents. 886 Spannable span = getSpannable(); 887 RecipientChip[] chips = span.getSpans(start, end, RecipientChip.class); 888 if (chips != null && chips.length > 0) { 889 return; 890 } 891 } 892 super.performFiltering(text, keyCode); 893 } 894 895 private void clearSelectedChip() { 896 if (mSelectedChip != null) { 897 unselectChip(mSelectedChip); 898 mSelectedChip = null; 899 } 900 setCursorVisible(true); 901 } 902 903 /** 904 * Monitor touch events in the RecipientEditTextView. 905 * If the view does not have focus, any tap on the view 906 * will just focus the view. If the view has focus, determine 907 * if the touch target is a recipient chip. If it is and the chip 908 * is not selected, select it and clear any other selected chips. 909 * If it isn't, then select that chip. 910 */ 911 @Override 912 public boolean onTouchEvent(MotionEvent event) { 913 if (!isFocused()) { 914 // Ignore any chip taps until this view is focused. 915 return super.onTouchEvent(event); 916 } 917 918 boolean handled = super.onTouchEvent(event); 919 int action = event.getAction(); 920 boolean chipWasSelected = false; 921 922 if (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_DOWN) { 923 float x = event.getX(); 924 float y = event.getY(); 925 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 926 RecipientChip currentChip = findChip(offset); 927 if (currentChip != null) { 928 if (action == MotionEvent.ACTION_UP) { 929 if (mSelectedChip != null && mSelectedChip != currentChip) { 930 clearSelectedChip(); 931 mSelectedChip = selectChip(currentChip); 932 } else if (mSelectedChip == null) { 933 // Selection may have moved due to the tap event, 934 // but make sure we correctly reset selection to the 935 // end so that any unfinished chips are committed. 936 setSelection(getText().length()); 937 commitDefault(); 938 mSelectedChip = selectChip(currentChip); 939 } else { 940 onClick(mSelectedChip, offset, x, y); 941 } 942 } 943 chipWasSelected = true; 944 setCursorVisible(false); 945 handled = true; 946 } 947 } 948 if (action == MotionEvent.ACTION_UP && !chipWasSelected) { 949 clearSelectedChip(); 950 } 951 return handled; 952 } 953 954 private void scrollLineIntoView(int line) { 955 if (mScrollView != null) { 956 mScrollView.scrollBy(0, calculateOffsetFromBottom(line)); 957 } 958 } 959 960 private void showAlternates(RecipientChip currentChip, ListPopupWindow alternatesPopup, 961 int width, Context context) { 962 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 963 int bottom = calculateOffsetFromBottom(line); 964 // Align the alternates popup with the left side of the View, 965 // regardless of the position of the chip tapped. 966 alternatesPopup.setWidth(width); 967 alternatesPopup.setAnchorView(this); 968 alternatesPopup.setVerticalOffset(bottom); 969 alternatesPopup.setAdapter(createAlternatesAdapter(currentChip)); 970 alternatesPopup.setOnItemClickListener(mAlternatesListener); 971 alternatesPopup.show(); 972 ListView listView = alternatesPopup.getListView(); 973 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 974 // Checked item would be -1 if the adapter has not 975 // loaded the view that should be checked yet. The 976 // variable will be set correctly when onCheckedItemChanged 977 // is called in a separate thread. 978 if (mCheckedItem != -1) { 979 listView.setItemChecked(mCheckedItem, true); 980 mCheckedItem = -1; 981 } 982 } 983 984 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 985 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 986 mAlternatesLayout, this); 987 } 988 989 private ListAdapter createSingleAddressAdapter(RecipientChip currentChip) { 990 return new SingleRecipientArrayAdapter(getContext(), mAlternatesLayout, currentChip 991 .getEntry()); 992 } 993 994 public void onCheckedItemChanged(int position) { 995 ListView listView = mAlternatesPopup.getListView(); 996 if (listView != null && listView.getCheckedItemCount() == 0) { 997 listView.setItemChecked(position, true); 998 } else { 999 mCheckedItem = position; 1000 } 1001 } 1002 1003 // TODO: This algorithm will need a lot of tweaking after more people have used 1004 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 1005 // what comes before the finger. 1006 private int putOffsetInRange(int o) { 1007 int offset = o; 1008 Editable text = getText(); 1009 int length = text.length(); 1010 // Remove whitespace from end to find "real end" 1011 int realLength = length; 1012 for (int i = length - 1; i >= 0; i--) { 1013 if (text.charAt(i) == ' ') { 1014 realLength--; 1015 } else { 1016 break; 1017 } 1018 } 1019 1020 // If the offset is beyond or at the end of the text, 1021 // leave it alone. 1022 if (offset >= realLength) { 1023 return offset; 1024 } 1025 Editable editable = getText(); 1026 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 1027 // Keep walking backward! 1028 offset--; 1029 } 1030 return offset; 1031 } 1032 1033 private int findText(Editable text, int offset) { 1034 if (text.charAt(offset) != ' ') { 1035 return offset; 1036 } 1037 return -1; 1038 } 1039 1040 private RecipientChip findChip(int offset) { 1041 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1042 // Find the chip that contains this offset. 1043 for (int i = 0; i < chips.length; i++) { 1044 RecipientChip chip = chips[i]; 1045 int start = getChipStart(chip); 1046 int end = getChipEnd(chip); 1047 if (offset >= start && offset <= end) { 1048 return chip; 1049 } 1050 } 1051 return null; 1052 } 1053 1054 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 1055 String displayText = entry.getDestination(); 1056 displayText = (String) mTokenizer.terminateToken(displayText); 1057 // Always leave a blank space at the end of a chip. 1058 int textLength = displayText.length()-1; 1059 SpannableString chipText = new SpannableString(displayText); 1060 int end = getSelectionEnd(); 1061 int start = mTokenizer.findTokenStart(getText(), end); 1062 try { 1063 chipText.setSpan(constructChipSpan(entry, start, pressed), 0, textLength, 1064 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1065 } catch (NullPointerException e) { 1066 Log.e(TAG, e.getMessage(), e); 1067 return null; 1068 } 1069 1070 return chipText; 1071 } 1072 1073 /** 1074 * When an item in the suggestions list has been clicked, create a chip from the 1075 * contact information of the selected item. 1076 */ 1077 @Override 1078 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1079 submitItemAtPosition(position); 1080 } 1081 1082 private void submitItemAtPosition(int position) { 1083 RecipientEntry entry = createValidatedEntry( 1084 (RecipientEntry)getAdapter().getItem(position)); 1085 if (entry == null) { 1086 return; 1087 } 1088 clearComposingText(); 1089 1090 int end = getSelectionEnd(); 1091 int start = mTokenizer.findTokenStart(getText(), end); 1092 1093 Editable editable = getText(); 1094 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1095 editable.replace(start, end, createChip(entry, false)); 1096 } 1097 1098 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1099 if (item == null) { 1100 return null; 1101 } 1102 final RecipientEntry entry; 1103 // If the display name and the address are the same, or if this is a 1104 // valid contact, but the destination is invalid, then make this a fake 1105 // recipient that is editable. 1106 String destination = item.getDestination(); 1107 if (TextUtils.isEmpty(item.getDisplayName()) 1108 || TextUtils.equals(item.getDisplayName(), destination) 1109 || (mValidator != null && !mValidator.isValid(destination))) { 1110 entry = RecipientEntry.constructFakeEntry(destination); 1111 } else { 1112 entry = item; 1113 } 1114 return entry; 1115 } 1116 1117 /** Returns a collection of contact Id for each chip inside this View. */ 1118 /* package */ Collection<Long> getContactIds() { 1119 final Set<Long> result = new HashSet<Long>(); 1120 RecipientChip[] chips = getRecipients(); 1121 if (chips != null) { 1122 for (RecipientChip chip : chips) { 1123 result.add(chip.getContactId()); 1124 } 1125 } 1126 return result; 1127 } 1128 1129 private RecipientChip[] getRecipients() { 1130 return getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1131 } 1132 1133 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1134 /* package */ Collection<Long> getDataIds() { 1135 final Set<Long> result = new HashSet<Long>(); 1136 RecipientChip [] chips = getRecipients(); 1137 if (chips != null) { 1138 for (RecipientChip chip : chips) { 1139 result.add(chip.getDataId()); 1140 } 1141 } 1142 return result; 1143 } 1144 1145 1146 @Override 1147 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1148 return false; 1149 } 1150 1151 @Override 1152 public void onDestroyActionMode(ActionMode mode) { 1153 } 1154 1155 @Override 1156 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1157 return false; 1158 } 1159 1160 /** 1161 * No chips are selectable. 1162 */ 1163 @Override 1164 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1165 return false; 1166 } 1167 1168 /** 1169 * Create the more chip. The more chip is text that replaces any chips that 1170 * do not fit in the pre-defined available space when the 1171 * RecipientEditTextView loses focus. 1172 */ 1173 private void createMoreChip() { 1174 RecipientChip[] recipients = getRecipients(); 1175 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1176 mMoreChip = null; 1177 return; 1178 } 1179 int numRecipients = recipients.length; 1180 int overage = numRecipients - CHIP_LIMIT; 1181 Editable text = getText(); 1182 // TODO: get the correct size from visual design. 1183 int width = (int) Math.floor(getWidth() * MORE_WIDTH_FACTOR); 1184 int height = getLineHeight(); 1185 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1186 Canvas canvas = new Canvas(drawable); 1187 String moreText = getResources().getString(mMoreString, overage); 1188 canvas.drawText(moreText, 0, moreText.length(), 0, height - getLayout().getLineDescent(0), 1189 getPaint()); 1190 1191 Drawable result = new BitmapDrawable(getResources(), drawable); 1192 result.setBounds(0, 0, width, height); 1193 ImageSpan moreSpan = new ImageSpan(result); 1194 Spannable spannable = getSpannable(); 1195 // Remove the overage chips. 1196 if (recipients == null || recipients.length == 0) { 1197 Log.w(TAG, 1198 "We have recipients. Tt should not be possible to have zero RecipientChips."); 1199 mMoreChip = null; 1200 return; 1201 } 1202 mRemovedSpans = new ArrayList<RecipientChip>(); 1203 int totalReplaceStart = 0; 1204 int totalReplaceEnd = 0; 1205 for (int i = numRecipients - overage; i < recipients.length; i++) { 1206 mRemovedSpans.add(recipients[i]); 1207 if (i == numRecipients - overage) { 1208 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1209 } 1210 if (i == recipients.length - 1) { 1211 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1212 } 1213 if (mTemporaryRecipients != null && !mTemporaryRecipients.contains(recipients[i])) { 1214 recipients[i].storeChipStart(spannable.getSpanStart(recipients[i])); 1215 recipients[i].storeChipEnd(spannable.getSpanEnd(recipients[i])); 1216 } 1217 spannable.removeSpan(recipients[i]); 1218 } 1219 // TODO: why would these ever be backwards? 1220 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1221 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1222 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1223 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1224 text.replace(start, end, chipText); 1225 mMoreChip = moreSpan; 1226 } 1227 1228 /** 1229 * Replace the more chip, if it exists, with all of the recipient chips it had 1230 * replaced when the RecipientEditTextView gains focus. 1231 */ 1232 private void removeMoreChip() { 1233 if (mMoreChip != null) { 1234 Spannable span = getSpannable(); 1235 span.removeSpan(mMoreChip); 1236 mMoreChip = null; 1237 // Re-add the spans that were removed. 1238 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1239 // Recreate each removed span. 1240 Editable editable = getText(); 1241 for (RecipientChip chip : mRemovedSpans) { 1242 int chipStart = chip.getStoredChipStart(); 1243 int chipEnd; 1244 String token; 1245 if (chipStart == -1) { 1246 // Need to find the location of the chip, again. 1247 token = (String)mTokenizer.terminateToken(chip.getEntry().getDestination()); 1248 chipStart = editable.toString().indexOf(token); 1249 // -1 for the space! 1250 chipEnd = chipStart + token.length() - 1; 1251 } else { 1252 chipEnd = Math.min(editable.length(), chip.getStoredChipEnd()); 1253 } 1254 if (Log.isLoggable(TAG, Log.DEBUG) && chipEnd != chip.getStoredChipEnd()) { 1255 Log.d(TAG, 1256 "Unexpectedly, the chip ended after the end of the editable text. " 1257 + "Chip End " + chip.getStoredChipEnd() 1258 + "Editable length " + editable.length()); 1259 } 1260 // Only set the span if we found a matching token. 1261 if (chipStart != -1) { 1262 editable.setSpan(chip, chipStart, chipEnd, 1263 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1264 } 1265 } 1266 mRemovedSpans.clear(); 1267 } 1268 } 1269 } 1270 1271 /** 1272 * Show specified chip as selected. If the RecipientChip is just an email address, 1273 * selecting the chip will take the contents of the chip and place it at 1274 * the end of the RecipientEditTextView for inline editing. If the 1275 * RecipientChip is a complete contact, then selecting the chip 1276 * will change the background color of the chip, show the delete icon, 1277 * and a popup window with the address in use highlighted and any other 1278 * alternate addresses for the contact. 1279 * @param currentChip Chip to select. 1280 * @return A RecipientChip in the selected state or null if the chip 1281 * just contained an email address. 1282 */ 1283 public RecipientChip selectChip(RecipientChip currentChip) { 1284 if (currentChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1285 CharSequence text = currentChip.getValue(); 1286 Editable editable = getText(); 1287 removeChip(currentChip); 1288 editable.append(text); 1289 setCursorVisible(true); 1290 setSelection(editable.length()); 1291 return null; 1292 } else if (currentChip.getContactId() == RecipientEntry.GENERATED_CONTACT) { 1293 int start = getChipStart(currentChip); 1294 int end = getChipEnd(currentChip); 1295 getSpannable().removeSpan(currentChip); 1296 RecipientChip newChip; 1297 try { 1298 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1299 } catch (NullPointerException e) { 1300 Log.e(TAG, e.getMessage(), e); 1301 return null; 1302 } 1303 Editable editable = getText(); 1304 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1305 if (start == -1 || end == -1) { 1306 Log.d(TAG, "The chip being selected no longer exists but should."); 1307 } else { 1308 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1309 } 1310 newChip.setSelected(true); 1311 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1312 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1313 } 1314 showAddress(newChip, mAddressPopup, getWidth(), getContext()); 1315 return newChip; 1316 } else { 1317 int start = getChipStart(currentChip); 1318 int end = getChipEnd(currentChip); 1319 getSpannable().removeSpan(currentChip); 1320 RecipientChip newChip; 1321 try { 1322 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1323 } catch (NullPointerException e) { 1324 Log.e(TAG, e.getMessage(), e); 1325 return null; 1326 } 1327 Editable editable = getText(); 1328 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1329 if (start == -1 || end == -1) { 1330 Log.d(TAG, "The chip being selected no longer exists but should."); 1331 } else { 1332 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1333 } 1334 newChip.setSelected(true); 1335 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1336 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1337 } 1338 showAlternates(newChip, mAlternatesPopup, getWidth(), getContext()); 1339 return newChip; 1340 } 1341 } 1342 1343 1344 private void showAddress(final RecipientChip currentChip, final ListPopupWindow popup, 1345 int width, Context context) { 1346 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1347 int bottom = calculateOffsetFromBottom(line); 1348 // Align the alternates popup with the left side of the View, 1349 // regardless of the position of the chip tapped. 1350 popup.setWidth(width); 1351 popup.setAnchorView(this); 1352 popup.setVerticalOffset(bottom); 1353 popup.setAdapter(createSingleAddressAdapter(currentChip)); 1354 popup.setOnItemClickListener(new OnItemClickListener() { 1355 @Override 1356 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1357 unselectChip(currentChip); 1358 popup.dismiss(); 1359 } 1360 }); 1361 popup.show(); 1362 ListView listView = popup.getListView(); 1363 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1364 listView.setItemChecked(0, true); 1365 } 1366 1367 /** 1368 * Remove selection from this chip. Unselecting a RecipientChip will render 1369 * the chip without a delete icon and with an unfocused background. This 1370 * is called when the RecipientChip no longer has focus. 1371 */ 1372 public void unselectChip(RecipientChip chip) { 1373 int start = getChipStart(chip); 1374 int end = getChipEnd(chip); 1375 Editable editable = getText(); 1376 mSelectedChip = null; 1377 if (start == -1 || end == -1) { 1378 Log.e(TAG, "The chip being unselected no longer exists but should."); 1379 } else { 1380 getSpannable().removeSpan(chip); 1381 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1382 editable.removeSpan(chip); 1383 try { 1384 editable.setSpan(constructChipSpan(chip.getEntry(), start, false), start, end, 1385 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1386 } catch (NullPointerException e) { 1387 Log.e(TAG, e.getMessage(), e); 1388 } 1389 } 1390 setCursorVisible(true); 1391 setSelection(editable.length()); 1392 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1393 mAlternatesPopup.dismiss(); 1394 } 1395 } 1396 1397 1398 /** 1399 * Return whether this chip contains the position passed in. 1400 */ 1401 public boolean matchesChip(RecipientChip chip, int offset) { 1402 int start = getChipStart(chip); 1403 int end = getChipEnd(chip); 1404 if (start == -1 || end == -1) { 1405 return false; 1406 } 1407 return (offset >= start && offset <= end); 1408 } 1409 1410 1411 /** 1412 * Return whether a touch event was inside the delete target of 1413 * a selected chip. It is in the delete target if: 1414 * 1) the x and y points of the event are within the 1415 * delete assset. 1416 * 2) the point tapped would have caused a cursor to appear 1417 * right after the selected chip. 1418 * @return boolean 1419 */ 1420 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1421 // Figure out the bounds of this chip and whether or not 1422 // the user clicked in the X portion. 1423 return chip.isSelected() && offset == getChipEnd(chip); 1424 } 1425 1426 /** 1427 * Remove the chip and any text associated with it from the RecipientEditTextView. 1428 */ 1429 private void removeChip(RecipientChip chip) { 1430 Spannable spannable = getSpannable(); 1431 int spanStart = spannable.getSpanStart(chip); 1432 int spanEnd = spannable.getSpanEnd(chip); 1433 Editable text = getText(); 1434 int toDelete = spanEnd; 1435 boolean wasSelected = chip == mSelectedChip; 1436 // Clear that there is a selected chip before updating any text. 1437 if (wasSelected) { 1438 mSelectedChip = null; 1439 } 1440 // Always remove trailing spaces when removing a chip. 1441 while (toDelete >= 0 && toDelete < text.length() && text.charAt(toDelete) == ' ') { 1442 toDelete++; 1443 } 1444 spannable.removeSpan(chip); 1445 text.delete(spanStart, toDelete); 1446 if (wasSelected) { 1447 clearSelectedChip(); 1448 } 1449 } 1450 1451 /** 1452 * Replace this currently selected chip with a new chip 1453 * that uses the contact data provided. 1454 */ 1455 public void replaceChip(RecipientChip chip, RecipientEntry entry) { 1456 boolean wasSelected = chip == mSelectedChip; 1457 if (wasSelected) { 1458 mSelectedChip = null; 1459 } 1460 int start = getChipStart(chip); 1461 int end = getChipEnd(chip); 1462 getSpannable().removeSpan(chip); 1463 Editable editable = getText(); 1464 CharSequence chipText = createChip(entry, false); 1465 if (start == -1 || end == -1) { 1466 Log.e(TAG, "The chip to replace does not exist but should."); 1467 editable.insert(0, chipText); 1468 } else { 1469 // There may be a space to replace with this chip's new associated 1470 // space. Check for it. 1471 int toReplace = end; 1472 while (toReplace >= 0 && toReplace < editable.length() 1473 && editable.charAt(toReplace) == ' ') { 1474 toReplace++; 1475 } 1476 editable.replace(start, toReplace, chipText); 1477 } 1478 setCursorVisible(true); 1479 if (wasSelected) { 1480 clearSelectedChip(); 1481 } 1482 } 1483 1484 /** 1485 * Handle click events for a chip. When a selected chip receives a click 1486 * event, see if that event was in the delete icon. If so, delete it. 1487 * Otherwise, unselect the chip. 1488 */ 1489 public void onClick(RecipientChip chip, int offset, float x, float y) { 1490 if (chip.isSelected()) { 1491 if (isInDelete(chip, offset, x, y)) { 1492 removeChip(chip); 1493 } else { 1494 clearSelectedChip(); 1495 } 1496 } 1497 } 1498 1499 private boolean chipsPending() { 1500 return mPendingChipsCount > 0 || (mRemovedSpans != null && mRemovedSpans.size() > 0); 1501 } 1502 1503 private class RecipientTextWatcher implements TextWatcher { 1504 @Override 1505 public void afterTextChanged(Editable s) { 1506 // If the text has been set to null or empty, make sure we remove 1507 // all the spans we applied. 1508 if (TextUtils.isEmpty(s)) { 1509 // Remove all the chips spans. 1510 Spannable spannable = getSpannable(); 1511 RecipientChip[] chips = spannable.getSpans(0, getText().length(), 1512 RecipientChip.class); 1513 for (RecipientChip chip : chips) { 1514 spannable.removeSpan(chip); 1515 } 1516 if (mMoreChip != null) { 1517 spannable.removeSpan(mMoreChip); 1518 } 1519 return; 1520 } 1521 // Get whether there are any recipients pending addition to the 1522 // view. If there are, don't do anything in the text watcher. 1523 if (chipsPending()) { 1524 return; 1525 } 1526 if (mSelectedChip != null) { 1527 setCursorVisible(true); 1528 setSelection(getText().length()); 1529 clearSelectedChip(); 1530 } 1531 int length = s.length(); 1532 // Make sure there is content there to parse and that it is 1533 // not just the commit character. 1534 if (length > 1) { 1535 char last; 1536 int end = getSelectionEnd() == 0 ? 0 : getSelectionEnd() - 1; 1537 int len = length() - 1; 1538 if (end != len) { 1539 last = s.charAt(end); 1540 } else { 1541 last = s.charAt(len); 1542 } 1543 if (last == COMMIT_CHAR_SEMICOLON || last == COMMIT_CHAR_COMMA) { 1544 commitByCharacter(); 1545 } else if (last == COMMIT_CHAR_SPACE) { 1546 // Check if this is a valid email address. If it is, 1547 // commit it. 1548 String text = getText().toString(); 1549 int tokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 1550 String sub = text.substring(tokenStart, mTokenizer.findTokenEnd(text, 1551 tokenStart)); 1552 if (mValidator != null && mValidator.isValid(sub)) { 1553 commitByCharacter(); 1554 } 1555 } 1556 } 1557 } 1558 1559 @Override 1560 public void onTextChanged(CharSequence s, int start, int before, int count) { 1561 // Do nothing. 1562 } 1563 1564 @Override 1565 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 1566 } 1567 } 1568 1569 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 1570 private RecipientChip createFreeChip(RecipientEntry entry) { 1571 String displayText = entry.getDestination(); 1572 displayText = (String) mTokenizer.terminateToken(displayText); 1573 try { 1574 return constructChipSpan(entry, -1, false); 1575 } catch (NullPointerException e) { 1576 Log.e(TAG, e.getMessage(), e); 1577 return null; 1578 } 1579 } 1580 1581 @Override 1582 protected Void doInBackground(Void... params) { 1583 if (mIndividualReplacements != null) { 1584 mIndividualReplacements.cancel(true); 1585 } 1586 // For each chip in the list, look up the matching contact. 1587 // If there is a match, replace that chip with the matching 1588 // chip. 1589 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 1590 RecipientChip[] existingChips = getSpannable().getSpans(0, getText().length(), 1591 RecipientChip.class); 1592 for (int i = 0; i < existingChips.length; i++) { 1593 originalRecipients.add(existingChips[i]); 1594 } 1595 if (mRemovedSpans != null) { 1596 originalRecipients.addAll(mRemovedSpans); 1597 } 1598 String[] addresses = new String[originalRecipients.size()]; 1599 for (int i = 0; i < originalRecipients.size(); i++) { 1600 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1601 } 1602 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1603 .getMatchingRecipients(getContext(), addresses); 1604 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 1605 for (final RecipientChip temp : originalRecipients) { 1606 RecipientEntry entry = null; 1607 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1608 && getSpannable().getSpanStart(temp) != -1) { 1609 // Replace this. 1610 entry = createValidatedEntry(entries.get(tokenizeAddress(temp.getEntry() 1611 .getDestination()))); 1612 } 1613 if (entry != null) { 1614 replacements.add(createFreeChip(entry)); 1615 } else { 1616 replacements.add(temp); 1617 } 1618 } 1619 if (replacements != null && replacements.size() > 0) { 1620 mHandler.post(new Runnable() { 1621 @Override 1622 public void run() { 1623 SpannableStringBuilder text = new SpannableStringBuilder(getText() 1624 .toString()); 1625 Editable oldText = getText(); 1626 int start, end; 1627 int i = 0; 1628 for (RecipientChip chip : originalRecipients) { 1629 start = oldText.getSpanStart(chip); 1630 if (start != -1) { 1631 end = oldText.getSpanEnd(chip); 1632 text.removeSpan(chip); 1633 // Leave a spot for the space! 1634 text.setSpan(replacements.get(i), start, end, 1635 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1636 } 1637 i++; 1638 } 1639 Editable editable = getText(); 1640 editable.clear(); 1641 editable.insert(0, text); 1642 originalRecipients.clear(); 1643 } 1644 }); 1645 } 1646 return null; 1647 } 1648 } 1649 1650 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 1651 @SuppressWarnings("unchecked") 1652 @Override 1653 protected Void doInBackground(Object... params) { 1654 // For each chip in the list, look up the matching contact. 1655 // If there is a match, replace that chip with the matching 1656 // chip. 1657 final ArrayList<RecipientChip> originalRecipients = 1658 (ArrayList<RecipientChip>) params[0]; 1659 String[] addresses = new String[originalRecipients.size()]; 1660 for (int i = 0; i < originalRecipients.size(); i++) { 1661 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1662 } 1663 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1664 .getMatchingRecipients(getContext(), addresses); 1665 for (final RecipientChip temp : originalRecipients) { 1666 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1667 && getSpannable().getSpanStart(temp) != -1) { 1668 // Replace this. 1669 final RecipientEntry entry = createValidatedEntry(entries 1670 .get(tokenizeAddress(temp.getEntry().getDestination()))); 1671 if (entry != null) { 1672 mHandler.post(new Runnable() { 1673 @Override 1674 public void run() { 1675 replaceChip(temp, entry); 1676 } 1677 }); 1678 } 1679 } 1680 } 1681 return null; 1682 } 1683 } 1684} 1685