RecipientEditTextView.java revision f7eaa5fc06e3dd57457f7bf0169374a4c9a1e413
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 } 206 207 @Override 208 public void onSelectionChanged(int start, int end) { 209 // When selection changes, see if it is inside the chips area. 210 // If so, move the cursor back after the chips again. 211 Spannable span = getSpannable(); 212 int textLength = getText().length(); 213 RecipientChip[] chips = span.getSpans(start, textLength, RecipientChip.class); 214 if (chips != null && chips.length > 0) { 215 if (chips != null && chips.length > 0) { 216 // Grab the last chip and set the cursor to after it. 217 setSelection(Math.min(span.getSpanEnd(chips[chips.length - 1]) + 1, textLength)); 218 } 219 } 220 super.onSelectionChanged(start, end); 221 } 222 223 /** 224 * Convenience method: Append the specified text slice to the TextView's 225 * display buffer, upgrading it to BufferType.EDITABLE if it was 226 * not already editable. Commas are excluded as they are added automatically 227 * by the view. 228 */ 229 @Override 230 public void append(CharSequence text, int start, int end) { 231 // We don't care about watching text changes while appending. 232 if (mTextWatcher != null) { 233 removeTextChangedListener(mTextWatcher); 234 } 235 super.append(text, start, end); 236 if (!TextUtils.isEmpty(text) && TextUtils.getTrimmedLength(text) > 0) { 237 final String displayString = (String) text; 238 int seperatorPos = displayString.indexOf(COMMIT_CHAR_COMMA); 239 if (seperatorPos != 0 && !TextUtils.isEmpty(displayString) 240 && TextUtils.getTrimmedLength(displayString) > 0) { 241 mPendingChipsCount++; 242 mPendingChips.add((String)text); 243 } 244 } 245 } 246 247 @Override 248 public void onFocusChanged(boolean hasFocus, int direction, Rect previous) { 249 if (!hasFocus) { 250 shrink(); 251 } else { 252 expand(); 253 scrollLineIntoView(getLineCount()); 254 } 255 super.onFocusChanged(hasFocus, direction, previous); 256 } 257 258 private void shrink() { 259 if (mSelectedChip != null) { 260 clearSelectedChip(); 261 } else { 262 // Reset any pending chips as they would have been handled 263 // when the field lost focus. 264 if (mPendingChipsCount > 0) { 265 handlePendingChips(); 266 mPendingChipsCount = 0; 267 mPendingChips.clear(); 268 } else { 269 Editable editable = getText(); 270 int end = getSelectionEnd(); 271 int start = mTokenizer.findTokenStart(editable, end); 272 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 273 if ((chips == null || chips.length == 0)) { 274 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 275 // In the middle of chip; treat this as an edit 276 // and commit the whole token. 277 if (whatEnd != getSelectionEnd()) { 278 handleEdit(start, whatEnd); 279 } else { 280 commitChip(start, end, editable); 281 } 282 } 283 } 284 mHandler.post(mAddTextWatcher); 285 } 286 createMoreChip(); 287 } 288 289 private void expand() { 290 removeMoreChip(); 291 setCursorVisible(true); 292 Editable text = getText(); 293 setSelection(text != null && text.length() > 0 ? text.length() : 0); 294 // If there are any temporary chips, try replacing them now that the user 295 // has expanded the field. 296 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0) { 297 new RecipientReplacementTask().execute(); 298 mTemporaryRecipients = null; 299 } 300 } 301 302 private CharSequence ellipsizeText(CharSequence text, TextPaint paint, float maxWidth) { 303 paint.setTextSize(mChipFontSize); 304 if (maxWidth <= 0 && Log.isLoggable(TAG, Log.DEBUG)) { 305 Log.d(TAG, "Max width is negative: " + maxWidth); 306 } 307 return TextUtils.ellipsize(text, paint, maxWidth, 308 TextUtils.TruncateAt.END); 309 } 310 311 private Bitmap createSelectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 312 // Ellipsize the text so that it takes AT MOST the entire width of the 313 // autocomplete text entry area. Make sure to leave space for padding 314 // on the sides. 315 int height = (int) mChipHeight; 316 int deleteWidth = height; 317 CharSequence ellipsizedText = ellipsizeText(contact.getDisplayName(), paint, 318 calculateAvailableWidth(true) - deleteWidth); 319 320 // Make sure there is a minimum chip width so the user can ALWAYS 321 // tap a chip without difficulty. 322 int width = Math.max(deleteWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 323 ellipsizedText.length())) 324 + (mChipPadding * 2) + deleteWidth); 325 326 // Create the background of the chip. 327 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 328 Canvas canvas = new Canvas(tmpBitmap); 329 if (mChipBackgroundPressed != null) { 330 mChipBackgroundPressed.setBounds(0, 0, width, height); 331 mChipBackgroundPressed.draw(canvas); 332 paint.setColor(sSelectedTextColor); 333 // Align the display text with where the user enters text. 334 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, height 335 - Math.abs(height - mChipFontSize)/2, paint); 336 // Make the delete a square. 337 mChipDelete.setBounds(width - deleteWidth, 0, width, height); 338 mChipDelete.draw(canvas); 339 } else { 340 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 341 } 342 return tmpBitmap; 343 } 344 345 346 /** 347 * Get the background drawable for a RecipientChip. 348 */ 349 public Drawable getChipBackground(RecipientEntry contact) { 350 return (mValidator != null && mValidator.isValid(contact.getDestination())) ? 351 mChipBackground : mInvalidChipBackground; 352 } 353 354 private Bitmap createUnselectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 355 // Ellipsize the text so that it takes AT MOST the entire width of the 356 // autocomplete text entry area. Make sure to leave space for padding 357 // on the sides. 358 int height = (int) mChipHeight; 359 int iconWidth = height; 360 CharSequence ellipsizedText = ellipsizeText(contact.getDisplayName(), paint, 361 calculateAvailableWidth(false) - iconWidth); 362 // Make sure there is a minimum chip width so the user can ALWAYS 363 // tap a chip without difficulty. 364 int width = Math.max(iconWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 365 ellipsizedText.length())) 366 + (mChipPadding * 2) + iconWidth); 367 368 // Create the background of the chip. 369 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 370 Canvas canvas = new Canvas(tmpBitmap); 371 Drawable background = getChipBackground(contact); 372 if (background != null) { 373 background.setBounds(0, 0, width, height); 374 background.draw(canvas); 375 376 // Don't draw photos for recipients that have been typed in. 377 if (contact.getContactId() != INVALID_CONTACT) { 378 byte[] photoBytes = contact.getPhotoBytes(); 379 // There may not be a photo yet if anything but the first contact address 380 // was selected. 381 if (photoBytes == null && contact.getPhotoThumbnailUri() != null) { 382 // TODO: cache this in the recipient entry? 383 ((BaseRecipientAdapter) getAdapter()).fetchPhoto(contact, contact 384 .getPhotoThumbnailUri()); 385 photoBytes = contact.getPhotoBytes(); 386 } 387 388 Bitmap photo; 389 if (photoBytes != null) { 390 photo = BitmapFactory.decodeByteArray(photoBytes, 0, photoBytes.length); 391 } else { 392 // TODO: can the scaled down default photo be cached? 393 photo = mDefaultContactPhoto; 394 } 395 // Draw the photo on the left side. 396 Matrix matrix = new Matrix(); 397 RectF src = new RectF(0, 0, photo.getWidth(), photo.getHeight()); 398 RectF dst = new RectF(width - iconWidth, 0, width, height); 399 matrix.setRectToRect(src, dst, Matrix.ScaleToFit.CENTER); 400 canvas.drawBitmap(photo, matrix, paint); 401 } else { 402 // Don't leave any space for the icon. It isn't being drawn. 403 iconWidth = 0; 404 } 405 406 // Align the display text with where the user enters text. 407 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 408 height - Math.abs(height - mChipFontSize) / 2, paint); 409 } else { 410 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 411 } 412 return tmpBitmap; 413 } 414 415 public RecipientChip constructChipSpan(RecipientEntry contact, int offset, boolean pressed) 416 throws NullPointerException { 417 if (mChipBackground == null) { 418 throw new NullPointerException( 419 "Unable to render any chips as setChipDimensions was not called."); 420 } 421 Layout layout = getLayout(); 422 423 TextPaint paint = getPaint(); 424 float defaultSize = paint.getTextSize(); 425 int defaultColor = paint.getColor(); 426 427 Bitmap tmpBitmap; 428 if (pressed) { 429 tmpBitmap = createSelectedChip(contact, paint, layout); 430 431 } else { 432 tmpBitmap = createUnselectedChip(contact, paint, layout); 433 } 434 435 // Pass the full text, un-ellipsized, to the chip. 436 Drawable result = new BitmapDrawable(getResources(), tmpBitmap); 437 result.setBounds(0, 0, tmpBitmap.getWidth(), tmpBitmap.getHeight()); 438 RecipientChip recipientChip = new RecipientChip(result, contact, offset); 439 // Return text to the original size. 440 paint.setTextSize(defaultSize); 441 paint.setColor(defaultColor); 442 return recipientChip; 443 } 444 445 /** 446 * Calculate the bottom of the line the chip will be located on using: 447 * 1) which line the chip appears on 448 * 2) the height of a chip 449 * 3) padding built into the edit text view 450 */ 451 private int calculateOffsetFromBottom(int line) { 452 // Line offsets start at zero. 453 int actualLine = getLineCount() - (line + 1); 454 return -((actualLine * ((int)mChipHeight) + getPaddingBottom()) + getPaddingTop()); 455 } 456 457 /** 458 * Get the max amount of space a chip can take up. The formula takes into 459 * account the width of the EditTextView, any view padding, and padding 460 * that will be added to the chip. 461 */ 462 private float calculateAvailableWidth(boolean pressed) { 463 return getWidth() - getPaddingLeft() - getPaddingRight() - (mChipPadding * 2); 464 } 465 466 /** 467 * Set all chip dimensions and resources. This has to be done from the 468 * application as this is a static library. 469 * @param chipBackground 470 * @param chipBackgroundPressed 471 * @param invalidChip 472 * @param chipDelete 473 * @param defaultContact 474 * @param moreResource 475 * @param alternatesLayout 476 * @param chipHeight 477 * @param padding Padding around the text in a chip 478 */ 479 public void setChipDimensions(Drawable chipBackground, Drawable chipBackgroundPressed, 480 Drawable invalidChip, Drawable chipDelete, Bitmap defaultContact, int moreResource, 481 int alternatesLayout, float chipHeight, float padding, 482 float chipFontSize) { 483 mChipBackground = chipBackground; 484 mChipBackgroundPressed = chipBackgroundPressed; 485 mChipDelete = chipDelete; 486 mChipPadding = (int) padding; 487 mAlternatesLayout = alternatesLayout; 488 mDefaultContactPhoto = defaultContact; 489 mMoreString = moreResource; 490 mChipHeight = chipHeight; 491 mChipFontSize = chipFontSize; 492 mInvalidChipBackground = invalidChip; 493 } 494 495 @Override 496 public void onSizeChanged(int width, int height, int oldw, int oldh) { 497 super.onSizeChanged(width, height, oldw, oldh); 498 // Check for any pending tokens created before layout had been completed 499 // on the view. 500 if (width != 0 && height != 0) { 501 if (mPendingChipsCount > 0) { 502 handlePendingChips(); 503 } 504 mPendingChipsCount = 0; 505 mPendingChips.clear(); 506 mHandler.post(mAddTextWatcher); 507 } 508 // Try to find the scroll view parent, if it exists. 509 if (mScrollView == null && !mTried) { 510 ViewParent parent = getParent(); 511 while (parent != null && !(parent instanceof ScrollView)) { 512 parent = parent.getParent(); 513 } 514 if (parent != null) { 515 mScrollView = (ScrollView) parent; 516 } 517 mTried = true; 518 } 519 } 520 521 private void handlePendingChips() { 522 mTemporaryRecipients = new ArrayList<RecipientChip>(mPendingChipsCount); 523 Editable editable = getText(); 524 // Tokenize! 525 for (int i = 0; i < mPendingChips.size(); i++) { 526 String current = mPendingChips.get(i); 527 int tokenStart = editable.toString().indexOf(current); 528 int tokenEnd = tokenStart + current.length(); 529 if (tokenStart >= 0) { 530 // When we have a valid token, include it with the token 531 // to the left. 532 if (tokenEnd < editable.length() - 2 533 && editable.charAt(tokenEnd) == COMMIT_CHAR_COMMA) { 534 tokenEnd++; 535 } 536 createReplacementChip(tokenStart, tokenEnd, editable); 537 } 538 mPendingChipsCount--; 539 } 540 sanitizeSpannable(); 541 if (mTemporaryRecipients != null 542 && mTemporaryRecipients.size() <= RecipientAlternatesAdapter.MAX_LOOKUPS) { 543 if (hasFocus() || mTemporaryRecipients.size() < CHIP_LIMIT) { 544 new RecipientReplacementTask().execute(); 545 mTemporaryRecipients = null; 546 } else { 547 // Create the "more" chip 548 mIndividualReplacements = new IndividualReplacementTask(); 549 mIndividualReplacements.execute(new ArrayList<RecipientChip>(mTemporaryRecipients 550 .subList(0, CHIP_LIMIT))); 551 552 createMoreChip(); 553 } 554 } else { 555 // There are too many recipients to look up, so just fall back to 556 // showing addresses for all of them. 557 mTemporaryRecipients = null; 558 createMoreChip(); 559 } 560 } 561 562 /** 563 * Remove any characters after the last valid chip. 564 */ 565 private void sanitizeSpannable() { 566 // Find the last chip; eliminate any commit characters after it. 567 RecipientChip[] chips = getRecipients(); 568 if (chips != null && chips.length > 0) { 569 int end; 570 ImageSpan lastSpan; 571 if (mMoreChip != null) { 572 lastSpan = mMoreChip; 573 } else { 574 lastSpan = chips[chips.length - 1]; 575 } 576 end = getSpannable().getSpanEnd(lastSpan); 577 Editable editable = getText(); 578 int length = editable.length(); 579 if (length > end) { 580 // See what characters occur after that and eliminate them. 581 if (Log.isLoggable(TAG, Log.DEBUG)) { 582 Log.d(TAG, "There were extra characters after the last tokenizable entry." 583 + editable); 584 } 585 editable.delete(end + 1, length); 586 } 587 } 588 } 589 590 /** 591 * Create a chip that represents just the email address of a recipient. At some later 592 * point, this chip will be attached to a real contact entry, if one exists. 593 */ 594 private void createReplacementChip(int tokenStart, int tokenEnd, Editable editable) { 595 String token = editable.toString().substring(tokenStart, tokenEnd); 596 int commitCharIndex = token.indexOf(COMMIT_CHAR_COMMA); 597 if (commitCharIndex == token.length() - 1) { 598 token = token.substring(0, token.length() - 1); 599 } 600 RecipientEntry entry = createTokenizedEntry(token); 601 String displayText = entry.getDestination(); 602 displayText = (String) mTokenizer.terminateToken(displayText); 603 // Always leave a blank space at the end of a chip. 604 int textLength = displayText.length() - 1; 605 SpannableString chipText = new SpannableString(displayText); 606 int end = getSelectionEnd(); 607 int start = mTokenizer.findTokenStart(getText(), end); 608 RecipientChip chip = null; 609 try { 610 chip = constructChipSpan(entry, start, false); 611 chipText.setSpan(chip, 0, textLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 612 } catch (NullPointerException e) { 613 Log.e(TAG, e.getMessage(), e); 614 } 615 616 editable.replace(tokenStart, tokenEnd, chipText); 617 // Add this chip to the list of entries "to replace" 618 if (chip != null) { 619 mTemporaryRecipients.add(chip); 620 } 621 } 622 623 private RecipientEntry createTokenizedEntry(String token) { 624 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(token); 625 String address; 626 if (tokens != null && tokens.length > 0) { 627 address = tokens[0].getAddress(); 628 } else { 629 address = token; 630 } 631 return RecipientEntry.constructFakeEntry(address); 632 } 633 634 @Override 635 public void setTokenizer(Tokenizer tokenizer) { 636 mTokenizer = tokenizer; 637 super.setTokenizer(mTokenizer); 638 } 639 640 @Override 641 public void setValidator(Validator validator) { 642 mValidator = validator; 643 super.setValidator(validator); 644 } 645 646 /** 647 * We cannot use the default mechanism for replaceText. Instead, 648 * we override onItemClickListener so we can get all the associated 649 * contact information including display text, address, and id. 650 */ 651 @Override 652 protected void replaceText(CharSequence text) { 653 return; 654 } 655 656 /** 657 * Dismiss any selected chips when the back key is pressed. 658 */ 659 @Override 660 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 661 if (keyCode == KeyEvent.KEYCODE_BACK) { 662 clearSelectedChip(); 663 } 664 return super.onKeyPreIme(keyCode, event); 665 } 666 667 /** 668 * Monitor key presses in this view to see if the user types 669 * any commit keys, which consist of ENTER, TAB, or DPAD_CENTER. 670 * If the user has entered text that has contact matches and types 671 * a commit key, create a chip from the topmost matching contact. 672 * If the user has entered text that has no contact matches and types 673 * a commit key, then create a chip from the text they have entered. 674 */ 675 @Override 676 public boolean onKeyUp(int keyCode, KeyEvent event) { 677 switch (keyCode) { 678 case KeyEvent.KEYCODE_ENTER: 679 case KeyEvent.KEYCODE_DPAD_CENTER: 680 if (event.hasNoModifiers()) { 681 if (commitDefault()) { 682 return true; 683 } 684 if (mSelectedChip != null) { 685 clearSelectedChip(); 686 return true; 687 } else if (focusNext()) { 688 return true; 689 } 690 } 691 break; 692 case KeyEvent.KEYCODE_TAB: 693 if (event.hasNoModifiers()) { 694 if (mSelectedChip != null) { 695 clearSelectedChip(); 696 } else { 697 commitDefault(); 698 } 699 if (focusNext()) { 700 return true; 701 } 702 } 703 } 704 return super.onKeyUp(keyCode, event); 705 } 706 707 private boolean focusNext() { 708 View next = focusSearch(View.FOCUS_DOWN); 709 if (next != null) { 710 next.requestFocus(); 711 return true; 712 } 713 return false; 714 } 715 716 /** 717 * Create a chip from the default selection. If the popup is showing, the 718 * default is the first item in the popup suggestions list. Otherwise, it is 719 * whatever the user had typed in. End represents where the the tokenizer 720 * should search for a token to turn into a chip. 721 * @return If a chip was created from a real contact. 722 */ 723 private boolean commitDefault() { 724 Editable editable = getText(); 725 int end = getSelectionEnd(); 726 int start = mTokenizer.findTokenStart(editable, end); 727 728 if (shouldCreateChip(start, end)) { 729 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 730 // In the middle of chip; treat this as an edit 731 // and commit the whole token. 732 if (whatEnd != getSelectionEnd()) { 733 handleEdit(start, whatEnd); 734 return true; 735 } 736 return commitChip(start, end , editable); 737 } 738 return false; 739 } 740 741 private void commitByCharacter() { 742 Editable editable = getText(); 743 int end = getSelectionEnd(); 744 int start = mTokenizer.findTokenStart(editable, end); 745 if (shouldCreateChip(start, end)) { 746 commitChip(start, end, editable); 747 } 748 setSelection(getText().length()); 749 } 750 751 private boolean commitChip(int start, int end, Editable editable) { 752 if (getAdapter().getCount() > 0 && enoughToFilter()) { 753 // choose the first entry. 754 submitItemAtPosition(0); 755 dismissDropDown(); 756 return true; 757 } else { 758 int tokenEnd = mTokenizer.findTokenEnd(editable, start); 759 String text = editable.toString().substring(start, tokenEnd).trim(); 760 clearComposingText(); 761 if (text != null && text.length() > 0 && !text.equals(" ")) { 762 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 763 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 764 CharSequence chipText = createChip(entry, false); 765 editable.replace(start, end, chipText); 766 dismissDropDown(); 767 return true; 768 } 769 } 770 return false; 771 } 772 773 private boolean shouldCreateChip(int start, int end) { 774 if (hasFocus() && enoughToFilter()) { 775 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 776 if ((chips == null || chips.length == 0)) { 777 return true; 778 } 779 } 780 return false; 781 } 782 783 private void handleEdit(int start, int end) { 784 // This is in the middle of a chip, so select out the whole chip 785 // and commit it. 786 Editable editable = getText(); 787 setSelection(end); 788 String text = getText().toString().substring(start, end); 789 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 790 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 791 CharSequence chipText = createChip(entry, false); 792 editable.replace(start, getSelectionEnd(), chipText); 793 dismissDropDown(); 794 } 795 796 /** 797 * If there is a selected chip, delegate the key events 798 * to the selected chip. 799 */ 800 @Override 801 public boolean onKeyDown(int keyCode, KeyEvent event) { 802 if (mSelectedChip != null && keyCode == KeyEvent.KEYCODE_DEL) { 803 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 804 mAlternatesPopup.dismiss(); 805 } 806 removeChip(mSelectedChip); 807 } 808 809 if (keyCode == KeyEvent.KEYCODE_ENTER && event.hasNoModifiers()) { 810 return true; 811 } 812 813 return super.onKeyDown(keyCode, event); 814 } 815 816 private Spannable getSpannable() { 817 return getText(); 818 } 819 820 private int getChipStart(RecipientChip chip) { 821 return getSpannable().getSpanStart(chip); 822 } 823 824 private int getChipEnd(RecipientChip chip) { 825 return getSpannable().getSpanEnd(chip); 826 } 827 828 /** 829 * Instead of filtering on the entire contents of the edit box, 830 * this subclass method filters on the range from 831 * {@link Tokenizer#findTokenStart} to {@link #getSelectionEnd} 832 * if the length of that range meets or exceeds {@link #getThreshold} 833 * and makes sure that the range is not already a Chip. 834 */ 835 @Override 836 protected void performFiltering(CharSequence text, int keyCode) { 837 if (enoughToFilter()) { 838 int end = getSelectionEnd(); 839 int start = mTokenizer.findTokenStart(text, end); 840 // If this is a RecipientChip, don't filter 841 // on its contents. 842 Spannable span = getSpannable(); 843 RecipientChip[] chips = span.getSpans(start, end, RecipientChip.class); 844 if (chips != null && chips.length > 0) { 845 return; 846 } 847 } 848 super.performFiltering(text, keyCode); 849 } 850 851 private void clearSelectedChip() { 852 if (mSelectedChip != null) { 853 unselectChip(mSelectedChip); 854 mSelectedChip = null; 855 } 856 setCursorVisible(true); 857 } 858 859 /** 860 * Monitor touch events in the RecipientEditTextView. 861 * If the view does not have focus, any tap on the view 862 * will just focus the view. If the view has focus, determine 863 * if the touch target is a recipient chip. If it is and the chip 864 * is not selected, select it and clear any other selected chips. 865 * If it isn't, then select that chip. 866 */ 867 @Override 868 public boolean onTouchEvent(MotionEvent event) { 869 if (!isFocused()) { 870 // Ignore any chip taps until this view is focused. 871 return super.onTouchEvent(event); 872 } 873 874 boolean handled = super.onTouchEvent(event); 875 int action = event.getAction(); 876 boolean chipWasSelected = false; 877 878 if (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_DOWN) { 879 float x = event.getX(); 880 float y = event.getY(); 881 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 882 RecipientChip currentChip = findChip(offset); 883 if (currentChip != null) { 884 if (action == MotionEvent.ACTION_UP) { 885 if (mSelectedChip != null && mSelectedChip != currentChip) { 886 clearSelectedChip(); 887 mSelectedChip = selectChip(currentChip); 888 } else if (mSelectedChip == null) { 889 // Selection may have moved due to the tap event, 890 // but make sure we correctly reset selection to the 891 // end so that any unfinished chips are committed. 892 setSelection(getText().length()); 893 commitDefault(); 894 mSelectedChip = selectChip(currentChip); 895 } else { 896 onClick(mSelectedChip, offset, x, y); 897 } 898 } 899 chipWasSelected = true; 900 setCursorVisible(false); 901 handled = true; 902 } 903 } 904 if (action == MotionEvent.ACTION_UP && !chipWasSelected) { 905 clearSelectedChip(); 906 } 907 return handled; 908 } 909 910 private void scrollLineIntoView(int line) { 911 if (mScrollView != null) { 912 mScrollView.scrollBy(0, calculateOffsetFromBottom(line)); 913 } 914 } 915 916 private void showAlternates(RecipientChip currentChip, ListPopupWindow alternatesPopup, 917 int width, Context context) { 918 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 919 int bottom = calculateOffsetFromBottom(line); 920 // Align the alternates popup with the left side of the View, 921 // regardless of the position of the chip tapped. 922 alternatesPopup.setWidth(width); 923 alternatesPopup.setAnchorView(this); 924 alternatesPopup.setVerticalOffset(bottom); 925 alternatesPopup.setAdapter(createAlternatesAdapter(currentChip)); 926 alternatesPopup.setOnItemClickListener(mAlternatesListener); 927 alternatesPopup.show(); 928 ListView listView = alternatesPopup.getListView(); 929 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 930 // Checked item would be -1 if the adapter has not 931 // loaded the view that should be checked yet. The 932 // variable will be set correctly when onCheckedItemChanged 933 // is called in a separate thread. 934 if (mCheckedItem != -1) { 935 listView.setItemChecked(mCheckedItem, true); 936 mCheckedItem = -1; 937 } 938 } 939 940 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 941 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 942 mAlternatesLayout, this); 943 } 944 945 public void onCheckedItemChanged(int position) { 946 ListView listView = mAlternatesPopup.getListView(); 947 if (listView != null && listView.getCheckedItemCount() == 0) { 948 listView.setItemChecked(position, true); 949 } else { 950 mCheckedItem = position; 951 } 952 } 953 954 // TODO: This algorithm will need a lot of tweaking after more people have used 955 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 956 // what comes before the finger. 957 private int putOffsetInRange(int o) { 958 int offset = o; 959 Editable text = getText(); 960 int length = text.length(); 961 // Remove whitespace from end to find "real end" 962 int realLength = length; 963 for (int i = length - 1; i >= 0; i--) { 964 if (text.charAt(i) == ' ') { 965 realLength--; 966 } else { 967 break; 968 } 969 } 970 971 // If the offset is beyond or at the end of the text, 972 // leave it alone. 973 if (offset >= realLength) { 974 return offset; 975 } 976 Editable editable = getText(); 977 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 978 // Keep walking backward! 979 offset--; 980 } 981 return offset; 982 } 983 984 private int findText(Editable text, int offset) { 985 if (text.charAt(offset) != ' ') { 986 return offset; 987 } 988 return -1; 989 } 990 991 private RecipientChip findChip(int offset) { 992 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 993 // Find the chip that contains this offset. 994 for (int i = 0; i < chips.length; i++) { 995 RecipientChip chip = chips[i]; 996 int start = getChipStart(chip); 997 int end = getChipEnd(chip); 998 if (offset >= start && offset <= end) { 999 return chip; 1000 } 1001 } 1002 return null; 1003 } 1004 1005 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 1006 String displayText = entry.getDestination(); 1007 displayText = (String) mTokenizer.terminateToken(displayText); 1008 // Always leave a blank space at the end of a chip. 1009 int textLength = displayText.length()-1; 1010 SpannableString chipText = new SpannableString(displayText); 1011 int end = getSelectionEnd(); 1012 int start = mTokenizer.findTokenStart(getText(), end); 1013 try { 1014 chipText.setSpan(constructChipSpan(entry, start, pressed), 0, textLength, 1015 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1016 } catch (NullPointerException e) { 1017 Log.e(TAG, e.getMessage(), e); 1018 return null; 1019 } 1020 1021 return chipText; 1022 } 1023 1024 /** 1025 * When an item in the suggestions list has been clicked, create a chip from the 1026 * contact information of the selected item. 1027 */ 1028 @Override 1029 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1030 submitItemAtPosition(position); 1031 } 1032 1033 private void submitItemAtPosition(int position) { 1034 RecipientEntry entry = createValidatedEntry( 1035 (RecipientEntry)getAdapter().getItem(position)); 1036 if (entry == null) { 1037 return; 1038 } 1039 clearComposingText(); 1040 1041 int end = getSelectionEnd(); 1042 int start = mTokenizer.findTokenStart(getText(), end); 1043 1044 Editable editable = getText(); 1045 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1046 editable.replace(start, end, createChip(entry, false)); 1047 } 1048 1049 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1050 if (item == null) { 1051 return null; 1052 } 1053 final RecipientEntry entry; 1054 // If the display name and the address are the same, or if this is a 1055 // valid contact, but the destination is invalid, then make this a fake 1056 // recipient that is editable. 1057 String destination = item.getDestination(); 1058 if (TextUtils.isEmpty(item.getDisplayName()) 1059 || TextUtils.equals(item.getDisplayName(), destination) 1060 || (mValidator != null && !mValidator.isValid(destination))) { 1061 entry = RecipientEntry.constructFakeEntry(destination); 1062 } else { 1063 entry = item; 1064 } 1065 return entry; 1066 } 1067 1068 /** Returns a collection of contact Id for each chip inside this View. */ 1069 /* package */ Collection<Long> getContactIds() { 1070 final Set<Long> result = new HashSet<Long>(); 1071 RecipientChip[] chips = getRecipients(); 1072 if (chips != null) { 1073 for (RecipientChip chip : chips) { 1074 result.add(chip.getContactId()); 1075 } 1076 } 1077 return result; 1078 } 1079 1080 private RecipientChip[] getRecipients() { 1081 return getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1082 } 1083 1084 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1085 /* package */ Collection<Long> getDataIds() { 1086 final Set<Long> result = new HashSet<Long>(); 1087 RecipientChip [] chips = getRecipients(); 1088 if (chips != null) { 1089 for (RecipientChip chip : chips) { 1090 result.add(chip.getDataId()); 1091 } 1092 } 1093 return result; 1094 } 1095 1096 1097 @Override 1098 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1099 return false; 1100 } 1101 1102 @Override 1103 public void onDestroyActionMode(ActionMode mode) { 1104 } 1105 1106 @Override 1107 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1108 return false; 1109 } 1110 1111 /** 1112 * No chips are selectable. 1113 */ 1114 @Override 1115 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1116 return false; 1117 } 1118 1119 /** 1120 * Create the more chip. The more chip is text that replaces any chips that 1121 * do not fit in the pre-defined available space when the 1122 * RecipientEditTextView loses focus. 1123 */ 1124 private void createMoreChip() { 1125 RecipientChip[] recipients = getRecipients(); 1126 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1127 mMoreChip = null; 1128 return; 1129 } 1130 int numRecipients = recipients.length; 1131 int overage = numRecipients - CHIP_LIMIT; 1132 Editable text = getText(); 1133 // TODO: get the correct size from visual design. 1134 int width = (int) Math.floor(getWidth() * MORE_WIDTH_FACTOR); 1135 int height = getLineHeight(); 1136 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1137 Canvas canvas = new Canvas(drawable); 1138 String moreText = getResources().getString(mMoreString, overage); 1139 canvas.drawText(moreText, 0, moreText.length(), 0, height - getLayout().getLineDescent(0), 1140 getPaint()); 1141 1142 Drawable result = new BitmapDrawable(getResources(), drawable); 1143 result.setBounds(0, 0, width, height); 1144 ImageSpan moreSpan = new ImageSpan(result); 1145 Spannable spannable = getSpannable(); 1146 // Remove the overage chips. 1147 if (recipients == null || recipients.length == 0) { 1148 Log.w(TAG, 1149 "We have recipients. Tt should not be possible to have zero RecipientChips."); 1150 mMoreChip = null; 1151 return; 1152 } 1153 mRemovedSpans = new ArrayList<RecipientChip>(); 1154 int totalReplaceStart = 0; 1155 int totalReplaceEnd = 0; 1156 for (int i = numRecipients - overage; i < recipients.length; i++) { 1157 mRemovedSpans.add(recipients[i]); 1158 if (i == numRecipients - overage) { 1159 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1160 } 1161 if (i == recipients.length - 1) { 1162 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1163 } 1164 if (mTemporaryRecipients != null && !mTemporaryRecipients.contains(recipients[i])) { 1165 recipients[i].storeChipStart(spannable.getSpanStart(recipients[i])); 1166 recipients[i].storeChipEnd(spannable.getSpanEnd(recipients[i])); 1167 } 1168 spannable.removeSpan(recipients[i]); 1169 } 1170 // TODO: why would these ever be backwards? 1171 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1172 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1173 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1174 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1175 text.replace(start, end, chipText); 1176 mMoreChip = moreSpan; 1177 } 1178 1179 /** 1180 * Replace the more chip, if it exists, with all of the recipient chips it had 1181 * replaced when the RecipientEditTextView gains focus. 1182 */ 1183 private void removeMoreChip() { 1184 if (mMoreChip != null) { 1185 Spannable span = getSpannable(); 1186 span.removeSpan(mMoreChip); 1187 mMoreChip = null; 1188 // Re-add the spans that were removed. 1189 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1190 // Recreate each removed span. 1191 Editable editable = getText(); 1192 for (RecipientChip chip : mRemovedSpans) { 1193 int chipStart = chip.getStoredChipStart(); 1194 int chipEnd; 1195 String token; 1196 if (chipStart == -1) { 1197 // Need to find the location of the chip, again. 1198 token = (String)mTokenizer.terminateToken(chip.getEntry().getDestination()); 1199 chipStart = editable.toString().indexOf(token); 1200 // -1 for the space! 1201 chipEnd = chipStart + token.length() - 1; 1202 } else { 1203 chipEnd = Math.min(editable.length(), chip.getStoredChipEnd()); 1204 } 1205 if (Log.isLoggable(TAG, Log.DEBUG) && chipEnd != chip.getStoredChipEnd()) { 1206 Log.d(TAG, 1207 "Unexpectedly, the chip ended after the end of the editable text. " 1208 + "Chip End " + chip.getStoredChipEnd() 1209 + "Editable length " + editable.length()); 1210 } 1211 // Only set the span if we found a matching token. 1212 if (chipStart != -1) { 1213 editable.setSpan(chip, chipStart, chipEnd, 1214 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1215 } 1216 } 1217 mRemovedSpans.clear(); 1218 } 1219 } 1220 } 1221 1222 /** 1223 * Show specified chip as selected. If the RecipientChip is just an email address, 1224 * selecting the chip will take the contents of the chip and place it at 1225 * the end of the RecipientEditTextView for inline editing. If the 1226 * RecipientChip is a complete contact, then selecting the chip 1227 * will change the background color of the chip, show the delete icon, 1228 * and a popup window with the address in use highlighted and any other 1229 * alternate addresses for the contact. 1230 * @param currentChip Chip to select. 1231 * @return A RecipientChip in the selected state or null if the chip 1232 * just contained an email address. 1233 */ 1234 public RecipientChip selectChip(RecipientChip currentChip) { 1235 if (currentChip.getContactId() != INVALID_CONTACT) { 1236 int start = getChipStart(currentChip); 1237 int end = getChipEnd(currentChip); 1238 getSpannable().removeSpan(currentChip); 1239 RecipientChip newChip; 1240 try { 1241 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1242 } catch (NullPointerException e) { 1243 Log.e(TAG, e.getMessage(), e); 1244 return null; 1245 } 1246 Editable editable = getText(); 1247 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1248 if (start == -1 || end == -1) { 1249 Log.d(TAG, "The chip being selected no longer exists but should."); 1250 } else { 1251 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1252 } 1253 newChip.setSelected(true); 1254 if (newChip.getEntry().getContactId() == INVALID_CONTACT) { 1255 scrollLineIntoView(getLayout().getLineForOffset( 1256 getChipStart(newChip))); 1257 } 1258 showAlternates(newChip, mAlternatesPopup, getWidth(), getContext()); 1259 return newChip; 1260 } else { 1261 CharSequence text = currentChip.getValue(); 1262 Editable editable = getText(); 1263 removeChip(currentChip); 1264 editable.append(text); 1265 setCursorVisible(true); 1266 setSelection(editable.length()); 1267 return null; 1268 } 1269 } 1270 1271 1272 /** 1273 * Remove selection from this chip. Unselecting a RecipientChip will render 1274 * the chip without a delete icon and with an unfocused background. This 1275 * is called when the RecipientChip no longer has focus. 1276 */ 1277 public void unselectChip(RecipientChip chip) { 1278 int start = getChipStart(chip); 1279 int end = getChipEnd(chip); 1280 Editable editable = getText(); 1281 mSelectedChip = null; 1282 if (start == -1 || end == -1) { 1283 Log.e(TAG, "The chip being unselected no longer exists but should."); 1284 } else { 1285 getSpannable().removeSpan(chip); 1286 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1287 editable.removeSpan(chip); 1288 try { 1289 editable.setSpan(constructChipSpan(chip.getEntry(), start, false), start, end, 1290 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1291 } catch (NullPointerException e) { 1292 Log.e(TAG, e.getMessage(), e); 1293 } 1294 } 1295 setCursorVisible(true); 1296 setSelection(editable.length()); 1297 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1298 mAlternatesPopup.dismiss(); 1299 } 1300 } 1301 1302 1303 /** 1304 * Return whether this chip contains the position passed in. 1305 */ 1306 public boolean matchesChip(RecipientChip chip, int offset) { 1307 int start = getChipStart(chip); 1308 int end = getChipEnd(chip); 1309 if (start == -1 || end == -1) { 1310 return false; 1311 } 1312 return (offset >= start && offset <= end); 1313 } 1314 1315 1316 /** 1317 * Return whether a touch event was inside the delete target of 1318 * a selected chip. It is in the delete target if: 1319 * 1) the x and y points of the event are within the 1320 * delete assset. 1321 * 2) the point tapped would have caused a cursor to appear 1322 * right after the selected chip. 1323 * @return boolean 1324 */ 1325 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1326 // Figure out the bounds of this chip and whether or not 1327 // the user clicked in the X portion. 1328 return chip.isSelected() && offset == getChipEnd(chip); 1329 } 1330 1331 /** 1332 * Remove the chip and any text associated with it from the RecipientEditTextView. 1333 */ 1334 private void removeChip(RecipientChip chip) { 1335 Spannable spannable = getSpannable(); 1336 int spanStart = spannable.getSpanStart(chip); 1337 int spanEnd = spannable.getSpanEnd(chip); 1338 Editable text = getText(); 1339 int toDelete = spanEnd; 1340 boolean wasSelected = chip == mSelectedChip; 1341 // Clear that there is a selected chip before updating any text. 1342 if (wasSelected) { 1343 mSelectedChip = null; 1344 } 1345 // Always remove trailing spaces when removing a chip. 1346 while (toDelete >= 0 && toDelete < text.length() && text.charAt(toDelete) == ' ') { 1347 toDelete++; 1348 } 1349 spannable.removeSpan(chip); 1350 text.delete(spanStart, toDelete); 1351 if (wasSelected) { 1352 clearSelectedChip(); 1353 } 1354 } 1355 1356 /** 1357 * Replace this currently selected chip with a new chip 1358 * that uses the contact data provided. 1359 */ 1360 public void replaceChip(RecipientChip chip, RecipientEntry entry) { 1361 boolean wasSelected = chip == mSelectedChip; 1362 if (wasSelected) { 1363 mSelectedChip = null; 1364 } 1365 int start = getChipStart(chip); 1366 int end = getChipEnd(chip); 1367 getSpannable().removeSpan(chip); 1368 Editable editable = getText(); 1369 CharSequence chipText = createChip(entry, false); 1370 if (start == -1 || end == -1) { 1371 Log.e(TAG, "The chip to replace does not exist but should."); 1372 editable.insert(0, chipText); 1373 } else { 1374 // There may be a space to replace with this chip's new associated 1375 // space. Check for it. 1376 int toReplace = end; 1377 while (toReplace >= 0 && toReplace < editable.length() 1378 && editable.charAt(toReplace) == ' ') { 1379 toReplace++; 1380 } 1381 editable.replace(start, toReplace, chipText); 1382 } 1383 setCursorVisible(true); 1384 if (wasSelected) { 1385 clearSelectedChip(); 1386 } 1387 } 1388 1389 /** 1390 * Handle click events for a chip. When a selected chip receives a click 1391 * event, see if that event was in the delete icon. If so, delete it. 1392 * Otherwise, unselect the chip. 1393 */ 1394 public void onClick(RecipientChip chip, int offset, float x, float y) { 1395 if (chip.isSelected()) { 1396 if (isInDelete(chip, offset, x, y)) { 1397 removeChip(chip); 1398 } else { 1399 clearSelectedChip(); 1400 } 1401 } 1402 } 1403 1404 private boolean chipsPending() { 1405 return mPendingChipsCount > 0 || (mRemovedSpans != null && mRemovedSpans.size() > 0); 1406 } 1407 1408 private class RecipientTextWatcher implements TextWatcher { 1409 @Override 1410 public void afterTextChanged(Editable s) { 1411 // Get whether there are any recipients pending addition to the view. 1412 // If there are, don't do anything in the text watcher. 1413 if (chipsPending()) { 1414 return; 1415 } 1416 if (mSelectedChip != null) { 1417 setCursorVisible(true); 1418 setSelection(getText().length()); 1419 clearSelectedChip(); 1420 } 1421 int length = s.length(); 1422 // Make sure there is content there to parse and that it is 1423 // not just the commit character. 1424 if (length > 1) { 1425 char last; 1426 int end = getSelectionEnd() == 0 ? 0 : getSelectionEnd() - 1; 1427 int len = length() - 1; 1428 if (end != len) { 1429 last = s.charAt(end); 1430 } else { 1431 last = s.charAt(len); 1432 } 1433 if (last == COMMIT_CHAR_SEMICOLON || last == COMMIT_CHAR_COMMA) { 1434 commitByCharacter(); 1435 } else if (last == COMMIT_CHAR_SPACE) { 1436 // Check if this is a valid email address. If it is, 1437 // commit it. 1438 String text = getText().toString(); 1439 int tokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 1440 String sub = text.substring(tokenStart, mTokenizer.findTokenEnd(text, 1441 tokenStart)); 1442 if (mValidator != null && mValidator.isValid(sub)) { 1443 commitByCharacter(); 1444 } 1445 } 1446 } 1447 } 1448 1449 @Override 1450 public void onTextChanged(CharSequence s, int start, int before, int count) { 1451 } 1452 1453 @Override 1454 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 1455 } 1456 } 1457 1458 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 1459 private RecipientChip createFreeChip(RecipientEntry entry) { 1460 String displayText = entry.getDestination(); 1461 displayText = (String) mTokenizer.terminateToken(displayText); 1462 try { 1463 return constructChipSpan(entry, -1, false); 1464 } catch (NullPointerException e) { 1465 Log.e(TAG, e.getMessage(), e); 1466 return null; 1467 } 1468 } 1469 1470 @Override 1471 protected Void doInBackground(Void... params) { 1472 if (mIndividualReplacements != null) { 1473 mIndividualReplacements.cancel(true); 1474 } 1475 // For each chip in the list, look up the matching contact. 1476 // If there is a match, replace that chip with the matching 1477 // chip. 1478 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 1479 RecipientChip[] existingChips = getSpannable().getSpans(0, getText().length(), 1480 RecipientChip.class); 1481 for (int i = 0; i < existingChips.length; i++) { 1482 originalRecipients.add(existingChips[i]); 1483 } 1484 if (mRemovedSpans != null) { 1485 originalRecipients.addAll(mRemovedSpans); 1486 } 1487 String[] addresses = new String[originalRecipients.size()]; 1488 for (int i = 0; i < originalRecipients.size(); i++) { 1489 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1490 } 1491 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1492 .getMatchingRecipients(getContext(), addresses); 1493 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 1494 for (final RecipientChip temp : originalRecipients) { 1495 RecipientEntry entry = null; 1496 if (temp.getEntry().getContactId() == INVALID_CONTACT 1497 && getSpannable().getSpanStart(temp) != -1) { 1498 // Replace this. 1499 entry = createValidatedEntry(entries.get(temp.getEntry().getDestination())); 1500 } 1501 if (entry != null) { 1502 replacements.add(createFreeChip(entry)); 1503 } else { 1504 replacements.add(temp); 1505 } 1506 } 1507 if (replacements != null && replacements.size() > 0) { 1508 mHandler.post(new Runnable() { 1509 @Override 1510 public void run() { 1511 SpannableStringBuilder text = new SpannableStringBuilder(getText() 1512 .toString()); 1513 Editable oldText = getText(); 1514 int start, end; 1515 int i = 0; 1516 for (RecipientChip chip : originalRecipients) { 1517 start = oldText.getSpanStart(chip); 1518 if (start != -1) { 1519 end = oldText.getSpanEnd(chip); 1520 text.removeSpan(chip); 1521 // Leave a spot for the space! 1522 text.setSpan(replacements.get(i), start, end, 1523 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1524 } 1525 i++; 1526 } 1527 Editable editable = getText(); 1528 editable.clear(); 1529 editable.insert(0, text); 1530 originalRecipients.clear(); 1531 } 1532 }); 1533 } 1534 return null; 1535 } 1536 } 1537 1538 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 1539 @SuppressWarnings("unchecked") 1540 @Override 1541 protected Void doInBackground(Object... params) { 1542 // For each chip in the list, look up the matching contact. 1543 // If there is a match, replace that chip with the matching 1544 // chip. 1545 final ArrayList<RecipientChip> originalRecipients = 1546 (ArrayList<RecipientChip>) params[0]; 1547 String[] addresses = new String[originalRecipients.size()]; 1548 for (int i = 0; i < originalRecipients.size(); i++) { 1549 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1550 } 1551 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1552 .getMatchingRecipients(getContext(), addresses); 1553 for (final RecipientChip temp : originalRecipients) { 1554 if (temp.getEntry().getContactId() == INVALID_CONTACT 1555 && getSpannable().getSpanStart(temp) != -1) { 1556 // Replace this. 1557 final RecipientEntry entry = createValidatedEntry(entries.get(temp.getEntry() 1558 .getDestination())); 1559 if (entry != null) { 1560 mHandler.post(new Runnable() { 1561 @Override 1562 public void run() { 1563 replaceChip(temp, entry); 1564 } 1565 }); 1566 } 1567 } 1568 } 1569 return null; 1570 } 1571 } 1572} 1573