RecipientEditTextView.java revision bbf141b605f92729864984229e6e1062d9a462be
1/* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.ex.chips; 18 19import android.content.Context; 20import android.graphics.Bitmap; 21import android.graphics.BitmapFactory; 22import android.graphics.Canvas; 23import android.graphics.Matrix; 24import android.graphics.Rect; 25import android.graphics.RectF; 26import android.graphics.drawable.BitmapDrawable; 27import android.graphics.drawable.Drawable; 28import android.os.AsyncTask; 29import android.os.Handler; 30import android.os.Message; 31import android.text.Editable; 32import android.text.Layout; 33import android.text.Spannable; 34import android.text.SpannableString; 35import android.text.SpannableStringBuilder; 36import android.text.Spanned; 37import android.text.TextPaint; 38import android.text.TextUtils; 39import android.text.TextWatcher; 40import android.text.method.QwertyKeyListener; 41import android.text.style.ImageSpan; 42import android.text.util.Rfc822Token; 43import android.text.util.Rfc822Tokenizer; 44import android.util.AttributeSet; 45import android.util.Log; 46import android.view.ActionMode; 47import android.view.KeyEvent; 48import android.view.Menu; 49import android.view.MenuItem; 50import android.view.MotionEvent; 51import android.view.View; 52import android.view.ViewParent; 53import android.view.ActionMode.Callback; 54import android.widget.AdapterView; 55import android.widget.AdapterView.OnItemClickListener; 56import android.widget.Filter; 57import android.widget.Filterable; 58import android.widget.ListAdapter; 59import android.widget.ListPopupWindow; 60import android.widget.ListView; 61import android.widget.MultiAutoCompleteTextView; 62import android.widget.ScrollView; 63 64import java.util.Collection; 65import java.util.HashMap; 66import java.util.HashSet; 67import java.util.Set; 68 69import java.util.ArrayList; 70 71/** 72 * RecipientEditTextView is an auto complete text view for use with applications 73 * that use the new Chips UI for addressing a message to recipients. 74 */ 75public class RecipientEditTextView extends MultiAutoCompleteTextView implements 76 OnItemClickListener, Callback, RecipientAlternatesAdapter.OnCheckedItemChangedListener { 77 78 private static final String TAG = "RecipientEditTextView"; 79 80 // TODO: get correct number/ algorithm from with UX. 81 private static final int CHIP_LIMIT = 2; 82 83 private static final int INVALID_CONTACT = -1; 84 85 // TODO: get correct size from UX. 86 private static final float MORE_WIDTH_FACTOR = 0.25f; 87 88 private Drawable mChipBackground = null; 89 90 private Drawable mChipDelete = null; 91 92 private int mChipPadding; 93 94 private Tokenizer mTokenizer; 95 96 private Drawable mChipBackgroundPressed; 97 98 private RecipientChip mSelectedChip; 99 100 private int mAlternatesLayout; 101 102 private Bitmap mDefaultContactPhoto; 103 104 private ImageSpan mMoreChip; 105 106 private int mMoreString; 107 108 109 private final ArrayList<String> mPendingChips = new ArrayList<String>(); 110 111 private float mChipHeight; 112 113 private float mChipFontSize; 114 115 private Validator mValidator; 116 117 private Drawable mInvalidChipBackground; 118 119 private Handler mHandler; 120 121 private static int DISMISS = "dismiss".hashCode(); 122 123 private static final long DISMISS_DELAY = 300; 124 125 private int mPendingChipsCount = 0; 126 127 private static int sSelectedTextColor = -1; 128 129 private static final char COMMIT_CHAR_COMMA = ','; 130 131 private static final char COMMIT_CHAR_SEMICOLON = ';'; 132 133 private static final char COMMIT_CHAR_SPACE = ' '; 134 135 private ListPopupWindow mAlternatesPopup; 136 137 private ArrayList<RecipientChip> mTemporaryRecipients; 138 139 private ArrayList<RecipientChip> mRemovedSpans; 140 141 /** 142 * Used with {@link mAlternatesPopup}. Handles clicks to alternate addresses for a selected chip. 143 */ 144 private OnItemClickListener mAlternatesListener; 145 146 private int mCheckedItem; 147 private TextWatcher mTextWatcher; 148 149 private ScrollView mScrollView; 150 151 private boolean mTried; 152 153 private final Runnable mAddTextWatcher = new Runnable() { 154 @Override 155 public void run() { 156 if (mTextWatcher == null) { 157 mTextWatcher = new RecipientTextWatcher(); 158 addTextChangedListener(mTextWatcher); 159 } 160 } 161 }; 162 163 private IndividualReplacementTask mIndividualReplacements; 164 165 public RecipientEditTextView(Context context, AttributeSet attrs) { 166 super(context, attrs); 167 if (sSelectedTextColor == -1) { 168 sSelectedTextColor = context.getResources().getColor(android.R.color.white); 169 } 170 mAlternatesPopup = new ListPopupWindow(context); 171 mAlternatesListener = new OnItemClickListener() { 172 @Override 173 public void onItemClick(AdapterView<?> adapterView,View view, int position, 174 long rowId) { 175 mAlternatesPopup.setOnItemClickListener(null); 176 replaceChip(mSelectedChip, ((RecipientAlternatesAdapter) adapterView.getAdapter()) 177 .getRecipientEntry(position)); 178 Message delayed = Message.obtain(mHandler, DISMISS); 179 delayed.obj = mAlternatesPopup; 180 mHandler.sendMessageDelayed(delayed, DISMISS_DELAY); 181 clearComposingText(); 182 } 183 }; 184 setSuggestionsEnabled(false); 185 setOnItemClickListener(this); 186 setCustomSelectionActionModeCallback(this); 187 mHandler = new Handler() { 188 @Override 189 public void handleMessage(Message msg) { 190 if (msg.what == DISMISS) { 191 ((ListPopupWindow) msg.obj).dismiss(); 192 return; 193 } 194 super.handleMessage(msg); 195 } 196 }; 197 } 198 199 @Override 200 public <T extends ListAdapter & Filterable> void setAdapter(T adapter) { 201 super.setAdapter(adapter); 202 if (adapter == null) { 203 return; 204 } 205 // Start the filtering process as soon as possible. This will 206 // cause any needed services to be started and make the first filter 207 // query come back more quickly. 208 Filter f = ((Filterable) adapter).getFilter(); 209 f.filter("sara"); 210 } 211 212 @Override 213 public void onSelectionChanged(int start, int end) { 214 // When selection changes, see if it is inside the chips area. 215 // If so, move the cursor back after the chips again. 216 Spannable span = getSpannable(); 217 int textLength = getText().length(); 218 RecipientChip[] chips = span.getSpans(start, textLength, RecipientChip.class); 219 if (chips != null && chips.length > 0) { 220 if (chips != null && chips.length > 0) { 221 // Grab the last chip and set the cursor to after it. 222 setSelection(Math.min(span.getSpanEnd(chips[chips.length - 1]) + 1, textLength)); 223 } 224 } 225 super.onSelectionChanged(start, end); 226 } 227 228 /** 229 * Convenience method: Append the specified text slice to the TextView's 230 * display buffer, upgrading it to BufferType.EDITABLE if it was 231 * not already editable. Commas are excluded as they are added automatically 232 * by the view. 233 */ 234 @Override 235 public void append(CharSequence text, int start, int end) { 236 super.append(text, start, end); 237 if (!TextUtils.isEmpty(text) && TextUtils.getTrimmedLength(text) > 0) { 238 final String displayString = (String) text; 239 int seperatorPos = displayString.indexOf(COMMIT_CHAR_COMMA); 240 if (seperatorPos != 0 && !TextUtils.isEmpty(displayString) 241 && TextUtils.getTrimmedLength(displayString) > 0) { 242 mPendingChipsCount++; 243 mPendingChips.add((String)text); 244 } 245 } 246 } 247 248 @Override 249 public void onFocusChanged(boolean hasFocus, int direction, Rect previous) { 250 if (!hasFocus) { 251 shrink(); 252 // Reset any pending chips as they would have been handled 253 // when the field lost focus. 254 mPendingChipsCount = 0; 255 mPendingChips.clear(); 256 mHandler.post(mAddTextWatcher); 257 } else { 258 expand(); 259 scrollLineIntoView(getLineCount()); 260 } 261 super.onFocusChanged(hasFocus, direction, previous); 262 } 263 264 private void shrink() { 265 if (mSelectedChip != null) { 266 clearSelectedChip(); 267 } else { 268 commitDefault(); 269 } 270 createMoreChip(); 271 } 272 273 private void expand() { 274 removeMoreChip(); 275 setCursorVisible(true); 276 Editable text = getText(); 277 setSelection(text != null && text.length() > 0 ? text.length() : 0); 278 // If there are any temporary chips, try replacing them now that the user 279 // has expanded the field. 280 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0) { 281 new RecipientReplacementTask().execute(); 282 mTemporaryRecipients = null; 283 } 284 } 285 286 private CharSequence ellipsizeText(CharSequence text, TextPaint paint, float maxWidth) { 287 paint.setTextSize(mChipFontSize); 288 if (maxWidth <= 0 && Log.isLoggable(TAG, Log.DEBUG)) { 289 Log.d(TAG, "Max width is negative: " + maxWidth); 290 } 291 return TextUtils.ellipsize(text, paint, maxWidth, 292 TextUtils.TruncateAt.END); 293 } 294 295 private Bitmap createSelectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 296 // Ellipsize the text so that it takes AT MOST the entire width of the 297 // autocomplete text entry area. Make sure to leave space for padding 298 // on the sides. 299 int height = (int) mChipHeight; 300 int deleteWidth = height; 301 CharSequence ellipsizedText = ellipsizeText(contact.getDisplayName(), paint, 302 calculateAvailableWidth(true) - deleteWidth); 303 304 // Make sure there is a minimum chip width so the user can ALWAYS 305 // tap a chip without difficulty. 306 int width = Math.max(deleteWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 307 ellipsizedText.length())) 308 + (mChipPadding * 2) + deleteWidth); 309 310 // Create the background of the chip. 311 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 312 Canvas canvas = new Canvas(tmpBitmap); 313 if (mChipBackgroundPressed != null) { 314 mChipBackgroundPressed.setBounds(0, 0, width, height); 315 mChipBackgroundPressed.draw(canvas); 316 paint.setColor(sSelectedTextColor); 317 // Align the display text with where the user enters text. 318 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, height 319 - Math.abs(height - mChipFontSize)/2, paint); 320 // Make the delete a square. 321 mChipDelete.setBounds(width - deleteWidth, 0, width, height); 322 mChipDelete.draw(canvas); 323 } else { 324 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 325 } 326 return tmpBitmap; 327 } 328 329 330 /** 331 * Get the background drawable for a RecipientChip. 332 */ 333 public Drawable getChipBackground(RecipientEntry contact) { 334 return (mValidator != null && mValidator.isValid(contact.getDestination())) ? 335 mChipBackground : mInvalidChipBackground; 336 } 337 338 private Bitmap createUnselectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 339 // Ellipsize the text so that it takes AT MOST the entire width of the 340 // autocomplete text entry area. Make sure to leave space for padding 341 // on the sides. 342 int height = (int) mChipHeight; 343 int iconWidth = height; 344 CharSequence ellipsizedText = ellipsizeText(contact.getDisplayName(), paint, 345 calculateAvailableWidth(false) - iconWidth); 346 // Make sure there is a minimum chip width so the user can ALWAYS 347 // tap a chip without difficulty. 348 int width = Math.max(iconWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 349 ellipsizedText.length())) 350 + (mChipPadding * 2) + iconWidth); 351 352 // Create the background of the chip. 353 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 354 Canvas canvas = new Canvas(tmpBitmap); 355 Drawable background = getChipBackground(contact); 356 if (background != null) { 357 background.setBounds(0, 0, width, height); 358 background.draw(canvas); 359 360 // Don't draw photos for recipients that have been typed in. 361 if (contact.getContactId() != INVALID_CONTACT) { 362 byte[] photoBytes = contact.getPhotoBytes(); 363 // There may not be a photo yet if anything but the first contact address 364 // was selected. 365 if (photoBytes == null && contact.getPhotoThumbnailUri() != null) { 366 // TODO: cache this in the recipient entry? 367 ((BaseRecipientAdapter) getAdapter()).fetchPhoto(contact, contact 368 .getPhotoThumbnailUri()); 369 photoBytes = contact.getPhotoBytes(); 370 } 371 372 Bitmap photo; 373 if (photoBytes != null) { 374 photo = BitmapFactory.decodeByteArray(photoBytes, 0, photoBytes.length); 375 } else { 376 // TODO: can the scaled down default photo be cached? 377 photo = mDefaultContactPhoto; 378 } 379 // Draw the photo on the left side. 380 Matrix matrix = new Matrix(); 381 RectF src = new RectF(0, 0, photo.getWidth(), photo.getHeight()); 382 RectF dst = new RectF(width - iconWidth, 0, width, height); 383 matrix.setRectToRect(src, dst, Matrix.ScaleToFit.CENTER); 384 canvas.drawBitmap(photo, matrix, paint); 385 } else { 386 // Don't leave any space for the icon. It isn't being drawn. 387 iconWidth = 0; 388 } 389 390 // Align the display text with where the user enters text. 391 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 392 height - Math.abs(height - mChipFontSize) / 2, paint); 393 } else { 394 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 395 } 396 return tmpBitmap; 397 } 398 399 public RecipientChip constructChipSpan(RecipientEntry contact, int offset, boolean pressed) 400 throws NullPointerException { 401 if (mChipBackground == null) { 402 throw new NullPointerException( 403 "Unable to render any chips as setChipDimensions was not called."); 404 } 405 Layout layout = getLayout(); 406 407 TextPaint paint = getPaint(); 408 float defaultSize = paint.getTextSize(); 409 int defaultColor = paint.getColor(); 410 411 Bitmap tmpBitmap; 412 if (pressed) { 413 tmpBitmap = createSelectedChip(contact, paint, layout); 414 415 } else { 416 tmpBitmap = createUnselectedChip(contact, paint, layout); 417 } 418 419 // Pass the full text, un-ellipsized, to the chip. 420 Drawable result = new BitmapDrawable(getResources(), tmpBitmap); 421 result.setBounds(0, 0, tmpBitmap.getWidth(), tmpBitmap.getHeight()); 422 RecipientChip recipientChip = new RecipientChip(result, contact, offset); 423 // Return text to the original size. 424 paint.setTextSize(defaultSize); 425 paint.setColor(defaultColor); 426 return recipientChip; 427 } 428 429 /** 430 * Calculate the bottom of the line the chip will be located on using: 431 * 1) which line the chip appears on 432 * 2) the height of a chip 433 * 3) padding built into the edit text view 434 */ 435 private int calculateOffsetFromBottom(int line) { 436 // Line offsets start at zero. 437 int actualLine = getLineCount() - (line + 1); 438 return -((actualLine * ((int)mChipHeight) + getPaddingBottom()) + getPaddingTop()); 439 } 440 441 /** 442 * Get the max amount of space a chip can take up. The formula takes into 443 * account the width of the EditTextView, any view padding, and padding 444 * that will be added to the chip. 445 */ 446 private float calculateAvailableWidth(boolean pressed) { 447 return getWidth() - getPaddingLeft() - getPaddingRight() - (mChipPadding * 2); 448 } 449 450 /** 451 * Set all chip dimensions and resources. This has to be done from the 452 * application as this is a static library. 453 * @param chipBackground 454 * @param chipBackgroundPressed 455 * @param invalidChip 456 * @param chipDelete 457 * @param defaultContact 458 * @param moreResource 459 * @param alternatesLayout 460 * @param chipHeight 461 * @param padding Padding around the text in a chip 462 */ 463 public void setChipDimensions(Drawable chipBackground, Drawable chipBackgroundPressed, 464 Drawable invalidChip, Drawable chipDelete, Bitmap defaultContact, int moreResource, 465 int alternatesLayout, float chipHeight, float padding, 466 float chipFontSize) { 467 mChipBackground = chipBackground; 468 mChipBackgroundPressed = chipBackgroundPressed; 469 mChipDelete = chipDelete; 470 mChipPadding = (int) padding; 471 mAlternatesLayout = alternatesLayout; 472 mDefaultContactPhoto = defaultContact; 473 mMoreString = moreResource; 474 mChipHeight = chipHeight; 475 mChipFontSize = chipFontSize; 476 mInvalidChipBackground = invalidChip; 477 } 478 479 @Override 480 public void onSizeChanged(int width, int height, int oldw, int oldh) { 481 super.onSizeChanged(width, height, oldw, oldh); 482 // Check for any pending tokens created before layout had been completed 483 // on the view. 484 if (width != 0 && height != 0) { 485 if (mPendingChipsCount > 0) { 486 handlePendingChips(); 487 } 488 mPendingChipsCount = 0; 489 mPendingChips.clear(); 490 mHandler.post(mAddTextWatcher); 491 } 492 // Try to find the scroll view parent, if it exists. 493 if (mScrollView == null && !mTried) { 494 ViewParent parent = getParent(); 495 while (parent != null && !(parent instanceof ScrollView)) { 496 parent = parent.getParent(); 497 } 498 if (parent != null) { 499 mScrollView = (ScrollView) parent; 500 } 501 mTried = true; 502 } 503 } 504 505 private void handlePendingChips() { 506 mTemporaryRecipients = new ArrayList<RecipientChip>(mPendingChipsCount); 507 Editable editable = getText(); 508 // Tokenize! 509 for (int i = 0; i < mPendingChips.size(); i++) { 510 String current = mPendingChips.get(i); 511 int tokenStart = editable.toString().indexOf(current); 512 int tokenEnd = tokenStart + current.length(); 513 if (tokenStart >= 0) { 514 // When we have a valid token, include it with the token 515 // to the left. 516 if (tokenEnd < editable.length() - 2 517 && editable.charAt(tokenEnd) == COMMIT_CHAR_COMMA) { 518 tokenEnd++; 519 } 520 createReplacementChip(tokenStart, tokenEnd, editable); 521 } 522 mPendingChipsCount--; 523 } 524 sanitizeSpannable(); 525 if (mTemporaryRecipients != null 526 && mTemporaryRecipients.size() <= RecipientAlternatesAdapter.MAX_LOOKUPS) { 527 if (hasFocus() || mTemporaryRecipients.size() < CHIP_LIMIT) { 528 new RecipientReplacementTask().execute(); 529 mTemporaryRecipients = null; 530 } else { 531 // Create the "more" chip 532 mIndividualReplacements = new IndividualReplacementTask(); 533 mIndividualReplacements.execute(new ArrayList<RecipientChip>(mTemporaryRecipients 534 .subList(0, CHIP_LIMIT))); 535 536 createMoreChip(); 537 } 538 } else { 539 // There are too many recipients to look up, so just fall back to 540 // showing addresses for all of them. 541 mTemporaryRecipients = null; 542 createMoreChip(); 543 } 544 } 545 546 /** 547 * Remove any characters after the last valid chip. 548 */ 549 private void sanitizeSpannable() { 550 // Find the last chip; eliminate any commit characters after it. 551 RecipientChip[] chips = getRecipients(); 552 if (chips != null && chips.length > 0) { 553 int end; 554 ImageSpan lastSpan; 555 if (mMoreChip != null) { 556 lastSpan = mMoreChip; 557 } else { 558 lastSpan = chips[chips.length - 1]; 559 } 560 end = getSpannable().getSpanEnd(lastSpan); 561 Editable editable = getText(); 562 int length = editable.length(); 563 if (length > end) { 564 // See what characters occur after that and eliminate them. 565 if (Log.isLoggable(TAG, Log.DEBUG)) { 566 Log.d(TAG, "There were extra characters after the last tokenizable entry." 567 + editable); 568 } 569 editable.delete(end + 1, length); 570 } 571 } 572 } 573 574 /** 575 * Create a chip that represents just the email address of a recipient. At some later 576 * point, this chip will be attached to a real contact entry, if one exists. 577 */ 578 private void createReplacementChip(int tokenStart, int tokenEnd, Editable editable) { 579 String token = editable.toString().substring(tokenStart, tokenEnd); 580 int commitCharIndex = token.indexOf(COMMIT_CHAR_COMMA); 581 if (commitCharIndex == token.length() - 1) { 582 token = token.substring(0, token.length() - 1); 583 } 584 RecipientEntry entry = createTokenizedEntry(token); 585 String displayText = entry.getDestination(); 586 displayText = (String) mTokenizer.terminateToken(displayText); 587 // Always leave a blank space at the end of a chip. 588 int textLength = displayText.length() - 1; 589 SpannableString chipText = new SpannableString(displayText); 590 int end = getSelectionEnd(); 591 int start = mTokenizer.findTokenStart(getText(), end); 592 RecipientChip chip = null; 593 try { 594 chip = constructChipSpan(entry, start, false); 595 chipText.setSpan(chip, 0, textLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 596 } catch (NullPointerException e) { 597 Log.e(TAG, e.getMessage(), e); 598 } 599 600 editable.replace(tokenStart, tokenEnd, chipText); 601 // Add this chip to the list of entries "to replace" 602 if (chip != null) { 603 mTemporaryRecipients.add(chip); 604 } 605 } 606 607 private RecipientEntry createTokenizedEntry(String token) { 608 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(token); 609 String address; 610 if (tokens != null && tokens.length > 0) { 611 address = tokens[0].getAddress(); 612 } else { 613 address = token; 614 } 615 return RecipientEntry.constructFakeEntry(address); 616 } 617 618 @Override 619 public void setTokenizer(Tokenizer tokenizer) { 620 mTokenizer = tokenizer; 621 super.setTokenizer(mTokenizer); 622 } 623 624 @Override 625 public void setValidator(Validator validator) { 626 mValidator = validator; 627 super.setValidator(validator); 628 } 629 630 /** 631 * We cannot use the default mechanism for replaceText. Instead, 632 * we override onItemClickListener so we can get all the associated 633 * contact information including display text, address, and id. 634 */ 635 @Override 636 protected void replaceText(CharSequence text) { 637 return; 638 } 639 640 /** 641 * Dismiss any selected chips when the back key is pressed. 642 */ 643 @Override 644 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 645 if (keyCode == KeyEvent.KEYCODE_BACK) { 646 clearSelectedChip(); 647 } 648 return super.onKeyPreIme(keyCode, event); 649 } 650 651 /** 652 * Monitor key presses in this view to see if the user types 653 * any commit keys, which consist of ENTER, TAB, or DPAD_CENTER. 654 * If the user has entered text that has contact matches and types 655 * a commit key, create a chip from the topmost matching contact. 656 * If the user has entered text that has no contact matches and types 657 * a commit key, then create a chip from the text they have entered. 658 */ 659 @Override 660 public boolean onKeyUp(int keyCode, KeyEvent event) { 661 switch (keyCode) { 662 case KeyEvent.KEYCODE_ENTER: 663 case KeyEvent.KEYCODE_DPAD_CENTER: 664 if (event.hasNoModifiers()) { 665 if (commitDefault()) { 666 return true; 667 } 668 if (mSelectedChip != null) { 669 clearSelectedChip(); 670 return true; 671 } else if (focusNext()) { 672 return true; 673 } 674 } 675 break; 676 case KeyEvent.KEYCODE_TAB: 677 if (event.hasNoModifiers()) { 678 if (mSelectedChip != null) { 679 clearSelectedChip(); 680 } else { 681 commitDefault(); 682 } 683 if (focusNext()) { 684 return true; 685 } 686 } 687 } 688 return super.onKeyUp(keyCode, event); 689 } 690 691 private boolean focusNext() { 692 View next = focusSearch(View.FOCUS_DOWN); 693 if (next != null) { 694 next.requestFocus(); 695 return true; 696 } 697 return false; 698 } 699 700 /** 701 * Create a chip from the default selection. If the popup is showing, the 702 * default is the first item in the popup suggestions list. Otherwise, it is 703 * whatever the user had typed in. End represents where the the tokenizer 704 * should search for a token to turn into a chip. 705 * @return If a chip was created from a real contact. 706 */ 707 private boolean commitDefault() { 708 Editable editable = getText(); 709 int end = getSelectionEnd(); 710 int start = mTokenizer.findTokenStart(editable, end); 711 712 if (shouldCreateChip(start, end)) { 713 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 714 // In the middle of chip; treat this as an edit 715 // and commit the whole token. 716 if (whatEnd != getSelectionEnd()) { 717 handleEdit(start, whatEnd); 718 return true; 719 } 720 return commitChip(start, end , editable); 721 } 722 return false; 723 } 724 725 private void commitByCharacter() { 726 Editable editable = getText(); 727 int end = getSelectionEnd(); 728 int start = mTokenizer.findTokenStart(editable, end); 729 if (shouldCreateChip(start, end)) { 730 commitChip(start, end, editable); 731 } 732 setSelection(getText().length()); 733 } 734 735 private boolean commitChip(int start, int end, Editable editable) { 736 if (getAdapter().getCount() > 0) { 737 // choose the first entry. 738 submitItemAtPosition(0); 739 dismissDropDown(); 740 return true; 741 } else { 742 int tokenEnd = mTokenizer.findTokenEnd(editable, start); 743 String text = editable.toString().substring(start, tokenEnd).trim(); 744 clearComposingText(); 745 if (text != null && text.length() > 0 && !text.equals(" ")) { 746 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 747 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 748 CharSequence chipText = createChip(entry, false); 749 editable.replace(start, end, chipText); 750 dismissDropDown(); 751 return true; 752 } 753 } 754 return false; 755 } 756 757 private boolean shouldCreateChip(int start, int end) { 758 if (hasFocus() && enoughToFilter()) { 759 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 760 if ((chips == null || chips.length == 0)) { 761 return true; 762 } 763 } 764 return false; 765 } 766 767 private void handleEdit(int start, int end) { 768 // This is in the middle of a chip, so select out the whole chip 769 // and commit it. 770 Editable editable = getText(); 771 setSelection(end); 772 String text = getText().toString().substring(start, end); 773 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 774 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 775 CharSequence chipText = createChip(entry, false); 776 editable.replace(start, getSelectionEnd(), chipText); 777 dismissDropDown(); 778 } 779 780 /** 781 * If there is a selected chip, delegate the key events 782 * to the selected chip. 783 */ 784 @Override 785 public boolean onKeyDown(int keyCode, KeyEvent event) { 786 if (mSelectedChip != null && keyCode == KeyEvent.KEYCODE_DEL) { 787 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 788 mAlternatesPopup.dismiss(); 789 } 790 removeChip(mSelectedChip); 791 } 792 793 if (keyCode == KeyEvent.KEYCODE_ENTER && event.hasNoModifiers()) { 794 return true; 795 } 796 797 return super.onKeyDown(keyCode, event); 798 } 799 800 private Spannable getSpannable() { 801 return getText(); 802 } 803 804 private int getChipStart(RecipientChip chip) { 805 return getSpannable().getSpanStart(chip); 806 } 807 808 private int getChipEnd(RecipientChip chip) { 809 return getSpannable().getSpanEnd(chip); 810 } 811 812 /** 813 * Instead of filtering on the entire contents of the edit box, 814 * this subclass method filters on the range from 815 * {@link Tokenizer#findTokenStart} to {@link #getSelectionEnd} 816 * if the length of that range meets or exceeds {@link #getThreshold} 817 * and makes sure that the range is not already a Chip. 818 */ 819 @Override 820 protected void performFiltering(CharSequence text, int keyCode) { 821 if (enoughToFilter()) { 822 int end = getSelectionEnd(); 823 int start = mTokenizer.findTokenStart(text, end); 824 // If this is a RecipientChip, don't filter 825 // on its contents. 826 Spannable span = getSpannable(); 827 RecipientChip[] chips = span.getSpans(start, end, RecipientChip.class); 828 if (chips != null && chips.length > 0) { 829 return; 830 } 831 } 832 super.performFiltering(text, keyCode); 833 } 834 835 private void clearSelectedChip() { 836 if (mSelectedChip != null) { 837 unselectChip(mSelectedChip); 838 mSelectedChip = null; 839 } 840 setCursorVisible(true); 841 } 842 843 /** 844 * Monitor touch events in the RecipientEditTextView. 845 * If the view does not have focus, any tap on the view 846 * will just focus the view. If the view has focus, determine 847 * if the touch target is a recipient chip. If it is and the chip 848 * is not selected, select it and clear any other selected chips. 849 * If it isn't, then select that chip. 850 */ 851 @Override 852 public boolean onTouchEvent(MotionEvent event) { 853 if (!isFocused()) { 854 // Ignore any chip taps until this view is focused. 855 return super.onTouchEvent(event); 856 } 857 858 boolean handled = super.onTouchEvent(event); 859 int action = event.getAction(); 860 boolean chipWasSelected = false; 861 862 if (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_DOWN) { 863 float x = event.getX(); 864 float y = event.getY(); 865 setCursorVisible(false); 866 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 867 RecipientChip currentChip = findChip(offset); 868 if (currentChip != null) { 869 if (action == MotionEvent.ACTION_UP) { 870 if (mSelectedChip != null && mSelectedChip != currentChip) { 871 clearSelectedChip(); 872 mSelectedChip = selectChip(currentChip); 873 } else if (mSelectedChip == null) { 874 // Selection may have moved due to the tap event, 875 // but make sure we correctly reset selection to the 876 // end so that any unfinished chips are committed. 877 setSelection(getText().length()); 878 commitDefault(); 879 mSelectedChip = selectChip(currentChip); 880 } else { 881 onClick(mSelectedChip, offset, x, y); 882 } 883 } 884 chipWasSelected = true; 885 handled = true; 886 } 887 } 888 if (action == MotionEvent.ACTION_UP && !chipWasSelected) { 889 clearSelectedChip(); 890 } 891 return handled; 892 } 893 894 private void scrollLineIntoView(int line) { 895 if (mScrollView != null) { 896 mScrollView.scrollBy(0, calculateOffsetFromBottom(line)); 897 } 898 } 899 900 private void showAlternates(RecipientChip currentChip, ListPopupWindow alternatesPopup, 901 int width, Context context) { 902 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 903 int bottom = calculateOffsetFromBottom(line); 904 // Align the alternates popup with the left side of the View, 905 // regardless of the position of the chip tapped. 906 alternatesPopup.setWidth(width); 907 alternatesPopup.setAnchorView(this); 908 alternatesPopup.setVerticalOffset(bottom); 909 alternatesPopup.setAdapter(createAlternatesAdapter(currentChip)); 910 alternatesPopup.setOnItemClickListener(mAlternatesListener); 911 alternatesPopup.show(); 912 ListView listView = alternatesPopup.getListView(); 913 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 914 // Checked item would be -1 if the adapter has not 915 // loaded the view that should be checked yet. The 916 // variable will be set correctly when onCheckedItemChanged 917 // is called in a separate thread. 918 if (mCheckedItem != -1) { 919 listView.setItemChecked(mCheckedItem, true); 920 mCheckedItem = -1; 921 } 922 } 923 924 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 925 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 926 mAlternatesLayout, this); 927 } 928 929 public void onCheckedItemChanged(int position) { 930 ListView listView = mAlternatesPopup.getListView(); 931 if (listView != null && listView.getCheckedItemCount() == 0) { 932 listView.setItemChecked(position, true); 933 } else { 934 mCheckedItem = position; 935 } 936 } 937 938 // TODO: This algorithm will need a lot of tweaking after more people have used 939 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 940 // what comes before the finger. 941 private int putOffsetInRange(int o) { 942 int offset = o; 943 Editable text = getText(); 944 int length = text.length(); 945 // Remove whitespace from end to find "real end" 946 int realLength = length; 947 for (int i = length - 1; i >= 0; i--) { 948 if (text.charAt(i) == ' ') { 949 realLength--; 950 } else { 951 break; 952 } 953 } 954 955 // If the offset is beyond or at the end of the text, 956 // leave it alone. 957 if (offset >= realLength) { 958 return offset; 959 } 960 Editable editable = getText(); 961 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 962 // Keep walking backward! 963 offset--; 964 } 965 return offset; 966 } 967 968 private int findText(Editable text, int offset) { 969 if (text.charAt(offset) != ' ') { 970 return offset; 971 } 972 return -1; 973 } 974 975 private RecipientChip findChip(int offset) { 976 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 977 // Find the chip that contains this offset. 978 for (int i = 0; i < chips.length; i++) { 979 RecipientChip chip = chips[i]; 980 int start = getChipStart(chip); 981 int end = getChipEnd(chip); 982 if (offset >= start && offset <= end) { 983 return chip; 984 } 985 } 986 return null; 987 } 988 989 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 990 String displayText = entry.getDestination(); 991 displayText = (String) mTokenizer.terminateToken(displayText); 992 // Always leave a blank space at the end of a chip. 993 int textLength = displayText.length()-1; 994 SpannableString chipText = new SpannableString(displayText); 995 int end = getSelectionEnd(); 996 int start = mTokenizer.findTokenStart(getText(), end); 997 try { 998 chipText.setSpan(constructChipSpan(entry, start, pressed), 0, textLength, 999 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1000 } catch (NullPointerException e) { 1001 Log.e(TAG, e.getMessage(), e); 1002 return null; 1003 } 1004 1005 return chipText; 1006 } 1007 1008 /** 1009 * When an item in the suggestions list has been clicked, create a chip from the 1010 * contact information of the selected item. 1011 */ 1012 @Override 1013 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1014 submitItemAtPosition(position); 1015 } 1016 1017 private void submitItemAtPosition(int position) { 1018 RecipientEntry entry = createValidatedEntry( 1019 (RecipientEntry)getAdapter().getItem(position)); 1020 clearComposingText(); 1021 1022 int end = getSelectionEnd(); 1023 int start = mTokenizer.findTokenStart(getText(), end); 1024 1025 Editable editable = getText(); 1026 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1027 editable.replace(start, end, createChip(entry, false)); 1028 } 1029 1030 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1031 if (item == null) { 1032 return null; 1033 } 1034 final RecipientEntry entry; 1035 // If the display name and the address are the same, or if this is a 1036 // valid contact, but the destination is invalid, then make this a fake 1037 // recipient that is editable. 1038 String destination = item.getDestination(); 1039 if (TextUtils.equals(item.getDisplayName(), destination) 1040 || (mValidator != null && !mValidator.isValid(destination))) { 1041 entry = RecipientEntry.constructFakeEntry(destination); 1042 } else { 1043 entry = item; 1044 } 1045 return entry; 1046 } 1047 1048 /** Returns a collection of contact Id for each chip inside this View. */ 1049 /* package */ Collection<Long> getContactIds() { 1050 final Set<Long> result = new HashSet<Long>(); 1051 RecipientChip[] chips = getRecipients(); 1052 if (chips != null) { 1053 for (RecipientChip chip : chips) { 1054 result.add(chip.getContactId()); 1055 } 1056 } 1057 return result; 1058 } 1059 1060 private RecipientChip[] getRecipients() { 1061 return getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1062 } 1063 1064 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1065 /* package */ Collection<Long> getDataIds() { 1066 final Set<Long> result = new HashSet<Long>(); 1067 RecipientChip [] chips = getRecipients(); 1068 if (chips != null) { 1069 for (RecipientChip chip : chips) { 1070 result.add(chip.getDataId()); 1071 } 1072 } 1073 return result; 1074 } 1075 1076 1077 @Override 1078 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1079 return false; 1080 } 1081 1082 @Override 1083 public void onDestroyActionMode(ActionMode mode) { 1084 } 1085 1086 @Override 1087 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1088 return false; 1089 } 1090 1091 /** 1092 * No chips are selectable. 1093 */ 1094 @Override 1095 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1096 return false; 1097 } 1098 1099 /** 1100 * Create the more chip. The more chip is text that replaces any chips that 1101 * do not fit in the pre-defined available space when the 1102 * RecipientEditTextView loses focus. 1103 */ 1104 private void createMoreChip() { 1105 RecipientChip[] recipients = getRecipients(); 1106 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1107 mMoreChip = null; 1108 return; 1109 } 1110 int numRecipients = recipients.length; 1111 int overage = numRecipients - CHIP_LIMIT; 1112 Editable text = getText(); 1113 // TODO: get the correct size from visual design. 1114 int width = (int) Math.floor(getWidth() * MORE_WIDTH_FACTOR); 1115 int height = getLineHeight(); 1116 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1117 Canvas canvas = new Canvas(drawable); 1118 String moreText = getResources().getString(mMoreString, overage); 1119 canvas.drawText(moreText, 0, moreText.length(), 0, height - getLayout().getLineDescent(0), 1120 getPaint()); 1121 1122 Drawable result = new BitmapDrawable(getResources(), drawable); 1123 result.setBounds(0, 0, width, height); 1124 ImageSpan moreSpan = new ImageSpan(result); 1125 Spannable spannable = getSpannable(); 1126 // Remove the overage chips. 1127 if (recipients == null || recipients.length == 0) { 1128 Log.w(TAG, 1129 "We have recipients. Tt should not be possible to have zero RecipientChips."); 1130 mMoreChip = null; 1131 return; 1132 } 1133 mRemovedSpans = new ArrayList<RecipientChip>(); 1134 int totalReplaceStart = 0; 1135 int totalReplaceEnd = 0; 1136 for (int i = numRecipients - overage; i < recipients.length; i++) { 1137 mRemovedSpans.add(recipients[i]); 1138 if (i == numRecipients - overage) { 1139 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1140 } 1141 if (i == recipients.length - 1) { 1142 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1143 } 1144 if (mTemporaryRecipients != null && !mTemporaryRecipients.contains(recipients[i])) { 1145 recipients[i].storeChipStart(spannable.getSpanStart(recipients[i])); 1146 recipients[i].storeChipEnd(spannable.getSpanEnd(recipients[i])); 1147 } 1148 spannable.removeSpan(recipients[i]); 1149 } 1150 // TODO: why would these ever be backwards? 1151 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1152 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1153 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1154 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1155 text.replace(start, end, chipText); 1156 mMoreChip = moreSpan; 1157 } 1158 1159 /** 1160 * Replace the more chip, if it exists, with all of the recipient chips it had 1161 * replaced when the RecipientEditTextView gains focus. 1162 */ 1163 private void removeMoreChip() { 1164 if (mMoreChip != null) { 1165 Spannable span = getSpannable(); 1166 span.removeSpan(mMoreChip); 1167 mMoreChip = null; 1168 // Re-add the spans that were removed. 1169 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1170 // Recreate each removed span. 1171 Editable editable = getText(); 1172 for (RecipientChip chip : mRemovedSpans) { 1173 int chipStart = chip.getStoredChipStart(); 1174 int chipEnd; 1175 String token; 1176 if (chipStart == -1) { 1177 // Need to find the location of the chip, again. 1178 token = (String)mTokenizer.terminateToken(chip.getEntry().getDestination()); 1179 chipStart = editable.toString().indexOf(token); 1180 // -1 for the space! 1181 chipEnd = chipStart + token.length() - 1; 1182 } else { 1183 chipEnd = Math.min(editable.length(), chip.getStoredChipEnd()); 1184 } 1185 if (Log.isLoggable(TAG, Log.DEBUG) && chipEnd != chip.getStoredChipEnd()) { 1186 Log.d(TAG, 1187 "Unexpectedly, the chip ended after the end of the editable text. " 1188 + "Chip End " + chip.getStoredChipEnd() 1189 + "Editable length " + editable.length()); 1190 } 1191 // Only set the span if we found a matching token. 1192 if (chipStart != -1) { 1193 editable.setSpan(chip, chipStart, chipEnd, 1194 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1195 } 1196 } 1197 mRemovedSpans.clear(); 1198 } 1199 } 1200 } 1201 1202 /** 1203 * Show specified chip as selected. If the RecipientChip is just an email address, 1204 * selecting the chip will take the contents of the chip and place it at 1205 * the end of the RecipientEditTextView for inline editing. If the 1206 * RecipientChip is a complete contact, then selecting the chip 1207 * will change the background color of the chip, show the delete icon, 1208 * and a popup window with the address in use highlighted and any other 1209 * alternate addresses for the contact. 1210 * @param currentChip Chip to select. 1211 * @return A RecipientChip in the selected state or null if the chip 1212 * just contained an email address. 1213 */ 1214 public RecipientChip selectChip(RecipientChip currentChip) { 1215 if (currentChip.getContactId() != INVALID_CONTACT) { 1216 int start = getChipStart(currentChip); 1217 int end = getChipEnd(currentChip); 1218 getSpannable().removeSpan(currentChip); 1219 RecipientChip newChip; 1220 try { 1221 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1222 } catch (NullPointerException e) { 1223 Log.e(TAG, e.getMessage(), e); 1224 return null; 1225 } 1226 Editable editable = getText(); 1227 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1228 if (start == -1 || end == -1) { 1229 Log.d(TAG, "The chip being selected no longer exists but should."); 1230 } else { 1231 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1232 } 1233 newChip.setSelected(true); 1234 if (newChip.getEntry().getContactId() == INVALID_CONTACT) { 1235 scrollLineIntoView(getLayout().getLineForOffset( 1236 getChipStart(newChip))); 1237 } 1238 showAlternates(newChip, mAlternatesPopup, getWidth(), getContext()); 1239 return newChip; 1240 } else { 1241 CharSequence text = currentChip.getValue(); 1242 Editable editable = getText(); 1243 removeChip(currentChip); 1244 editable.append(text); 1245 setCursorVisible(true); 1246 setSelection(editable.length()); 1247 return null; 1248 } 1249 } 1250 1251 1252 /** 1253 * Remove selection from this chip. Unselecting a RecipientChip will render 1254 * the chip without a delete icon and with an unfocused background. This 1255 * is called when the RecipientChip no longer has focus. 1256 */ 1257 public void unselectChip(RecipientChip chip) { 1258 int start = getChipStart(chip); 1259 int end = getChipEnd(chip); 1260 Editable editable = getText(); 1261 mSelectedChip = null; 1262 if (start == -1 || end == -1) { 1263 Log.e(TAG, "The chip being unselected no longer exists but should."); 1264 } else { 1265 getSpannable().removeSpan(chip); 1266 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1267 editable.removeSpan(chip); 1268 try { 1269 editable.setSpan(constructChipSpan(chip.getEntry(), start, false), start, end, 1270 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1271 } catch (NullPointerException e) { 1272 Log.e(TAG, e.getMessage(), e); 1273 } 1274 } 1275 setCursorVisible(true); 1276 setSelection(editable.length()); 1277 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1278 mAlternatesPopup.dismiss(); 1279 } 1280 } 1281 1282 1283 /** 1284 * Return whether this chip contains the position passed in. 1285 */ 1286 public boolean matchesChip(RecipientChip chip, int offset) { 1287 int start = getChipStart(chip); 1288 int end = getChipEnd(chip); 1289 if (start == -1 || end == -1) { 1290 return false; 1291 } 1292 return (offset >= start && offset <= end); 1293 } 1294 1295 1296 /** 1297 * Return whether a touch event was inside the delete target of 1298 * a selected chip. It is in the delete target if: 1299 * 1) the x and y points of the event are within the 1300 * delete assset. 1301 * 2) the point tapped would have caused a cursor to appear 1302 * right after the selected chip. 1303 * @return boolean 1304 */ 1305 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1306 // Figure out the bounds of this chip and whether or not 1307 // the user clicked in the X portion. 1308 return chip.isSelected() && offset == getChipEnd(chip); 1309 } 1310 1311 /** 1312 * Remove the chip and any text associated with it from the RecipientEditTextView. 1313 */ 1314 private void removeChip(RecipientChip chip) { 1315 Spannable spannable = getSpannable(); 1316 int spanStart = spannable.getSpanStart(chip); 1317 int spanEnd = spannable.getSpanEnd(chip); 1318 Editable text = getText(); 1319 int toDelete = spanEnd; 1320 boolean wasSelected = chip == mSelectedChip; 1321 // Clear that there is a selected chip before updating any text. 1322 if (wasSelected) { 1323 mSelectedChip = null; 1324 } 1325 // Always remove trailing spaces when removing a chip. 1326 while (toDelete >= 0 && toDelete < text.length() && text.charAt(toDelete) == ' ') { 1327 toDelete++; 1328 } 1329 spannable.removeSpan(chip); 1330 text.delete(spanStart, toDelete); 1331 if (wasSelected) { 1332 clearSelectedChip(); 1333 } 1334 } 1335 1336 /** 1337 * Replace this currently selected chip with a new chip 1338 * that uses the contact data provided. 1339 */ 1340 public void replaceChip(RecipientChip chip, RecipientEntry entry) { 1341 boolean wasSelected = chip == mSelectedChip; 1342 if (wasSelected) { 1343 mSelectedChip = null; 1344 } 1345 int start = getChipStart(chip); 1346 int end = getChipEnd(chip); 1347 getSpannable().removeSpan(chip); 1348 Editable editable = getText(); 1349 CharSequence chipText = createChip(entry, false); 1350 if (start == -1 || end == -1) { 1351 Log.e(TAG, "The chip to replace does not exist but should."); 1352 editable.insert(0, chipText); 1353 } else { 1354 // There may be a space to replace with this chip's new associated 1355 // space. Check for it. 1356 int toReplace = end; 1357 while (toReplace >= 0 && toReplace < editable.length() 1358 && editable.charAt(toReplace) == ' ') { 1359 toReplace++; 1360 } 1361 editable.replace(start, toReplace, chipText); 1362 } 1363 setCursorVisible(true); 1364 if (wasSelected) { 1365 clearSelectedChip(); 1366 } 1367 } 1368 1369 /** 1370 * Handle click events for a chip. When a selected chip receives a click 1371 * event, see if that event was in the delete icon. If so, delete it. 1372 * Otherwise, unselect the chip. 1373 */ 1374 public void onClick(RecipientChip chip, int offset, float x, float y) { 1375 if (chip.isSelected()) { 1376 if (isInDelete(chip, offset, x, y)) { 1377 removeChip(chip); 1378 } else { 1379 clearSelectedChip(); 1380 } 1381 } 1382 } 1383 1384 private boolean chipsPending() { 1385 return mPendingChipsCount > 0 || (mRemovedSpans != null && mRemovedSpans.size() > 0); 1386 } 1387 1388 private class RecipientTextWatcher implements TextWatcher { 1389 @Override 1390 public void afterTextChanged(Editable s) { 1391 // Get whether there are any recipients pending addition to the view. 1392 // If there are, don't do anything in the text watcher. 1393 if (chipsPending()) { 1394 return; 1395 } 1396 if (mSelectedChip != null) { 1397 setCursorVisible(true); 1398 setSelection(getText().length()); 1399 clearSelectedChip(); 1400 } 1401 int length = s.length(); 1402 // Make sure there is content there to parse and that it is 1403 // not just the commit character. 1404 if (length > 1) { 1405 char last; 1406 int end = getSelectionEnd() == 0 ? 0 : getSelectionEnd() - 1; 1407 int len = length() - 1; 1408 if (end != len) { 1409 last = s.charAt(end); 1410 } else { 1411 last = s.charAt(len); 1412 } 1413 if (last == COMMIT_CHAR_SEMICOLON || last == COMMIT_CHAR_COMMA) { 1414 commitByCharacter(); 1415 } else if (last == COMMIT_CHAR_SPACE) { 1416 // Check if this is a valid email address. If it is, 1417 // commit it. 1418 String text = getText().toString(); 1419 int tokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 1420 String sub = text.substring(tokenStart, mTokenizer.findTokenEnd(text, 1421 tokenStart)); 1422 if (mValidator != null && mValidator.isValid(sub)) { 1423 commitByCharacter(); 1424 } 1425 } 1426 } 1427 } 1428 1429 @Override 1430 public void onTextChanged(CharSequence s, int start, int before, int count) { 1431 } 1432 1433 @Override 1434 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 1435 } 1436 } 1437 1438 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 1439 private RecipientChip createFreeChip(RecipientEntry entry) { 1440 String displayText = entry.getDestination(); 1441 displayText = (String) mTokenizer.terminateToken(displayText); 1442 try { 1443 return constructChipSpan(entry, -1, false); 1444 } catch (NullPointerException e) { 1445 Log.e(TAG, e.getMessage(), e); 1446 return null; 1447 } 1448 } 1449 1450 @Override 1451 protected Void doInBackground(Void... params) { 1452 if (mIndividualReplacements != null) { 1453 mIndividualReplacements.cancel(true); 1454 } 1455 // For each chip in the list, look up the matching contact. 1456 // If there is a match, replace that chip with the matching 1457 // chip. 1458 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 1459 RecipientChip[] existingChips = getSpannable().getSpans(0, getText().length(), 1460 RecipientChip.class); 1461 for (int i = 0; i < existingChips.length; i++) { 1462 originalRecipients.add(existingChips[i]); 1463 } 1464 if (mRemovedSpans != null) { 1465 originalRecipients.addAll(mRemovedSpans); 1466 } 1467 String[] addresses = new String[originalRecipients.size()]; 1468 for (int i = 0; i < originalRecipients.size(); i++) { 1469 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1470 } 1471 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1472 .getMatchingRecipients(getContext(), addresses); 1473 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 1474 for (final RecipientChip temp : originalRecipients) { 1475 RecipientEntry entry = null; 1476 if (temp.getEntry().getContactId() == INVALID_CONTACT 1477 && getSpannable().getSpanStart(temp) != -1) { 1478 // Replace this. 1479 entry = createValidatedEntry(entries.get(temp.getEntry().getDestination())); 1480 } 1481 if (entry != null) { 1482 replacements.add(createFreeChip(entry)); 1483 } else { 1484 replacements.add(temp); 1485 } 1486 } 1487 if (replacements != null && replacements.size() > 0) { 1488 mHandler.post(new Runnable() { 1489 @Override 1490 public void run() { 1491 SpannableStringBuilder text = new SpannableStringBuilder(getText() 1492 .toString()); 1493 Editable oldText = getText(); 1494 int start, end; 1495 int i = 0; 1496 for (RecipientChip chip : originalRecipients) { 1497 start = oldText.getSpanStart(chip); 1498 if (start != -1) { 1499 end = oldText.getSpanEnd(chip); 1500 text.removeSpan(chip); 1501 // Leave a spot for the space! 1502 text.setSpan(replacements.get(i), start, end, 1503 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1504 } 1505 i++; 1506 } 1507 Editable editable = getText(); 1508 editable.clear(); 1509 editable.insert(0, text); 1510 originalRecipients.clear(); 1511 } 1512 }); 1513 } 1514 return null; 1515 } 1516 } 1517 1518 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 1519 @SuppressWarnings("unchecked") 1520 @Override 1521 protected Void doInBackground(Object... params) { 1522 // For each chip in the list, look up the matching contact. 1523 // If there is a match, replace that chip with the matching 1524 // chip. 1525 final ArrayList<RecipientChip> originalRecipients = 1526 (ArrayList<RecipientChip>) params[0]; 1527 String[] addresses = new String[originalRecipients.size()]; 1528 for (int i = 0; i < originalRecipients.size(); i++) { 1529 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1530 } 1531 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1532 .getMatchingRecipients(getContext(), addresses); 1533 for (final RecipientChip temp : originalRecipients) { 1534 if (temp.getEntry().getContactId() == INVALID_CONTACT 1535 && getSpannable().getSpanStart(temp) != -1) { 1536 // Replace this. 1537 final RecipientEntry entry = createValidatedEntry(entries.get(temp.getEntry() 1538 .getDestination())); 1539 if (entry != null) { 1540 mHandler.post(new Runnable() { 1541 @Override 1542 public void run() { 1543 replaceChip(temp, entry); 1544 } 1545 }); 1546 } 1547 } 1548 } 1549 return null; 1550 } 1551 } 1552} 1553