RecipientEditTextView.java revision 454eaf31f312fd2f2e6bc3d30bb050d65079a9a0
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.ActionMode.Callback; 48import android.view.KeyEvent; 49import android.view.LayoutInflater; 50import android.view.Menu; 51import android.view.MenuItem; 52import android.view.MotionEvent; 53import android.view.View; 54import android.view.ViewParent; 55import android.widget.AdapterView; 56import android.widget.AdapterView.OnItemClickListener; 57import android.widget.Filterable; 58import android.widget.ListAdapter; 59import android.widget.ListPopupWindow; 60import android.widget.ListView; 61import android.widget.MultiAutoCompleteTextView; 62import android.widget.ScrollView; 63import android.widget.TextView; 64 65import java.util.ArrayList; 66import java.util.Collection; 67import java.util.HashMap; 68import java.util.HashSet; 69import java.util.Set; 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 Drawable mChipBackground = null; 84 85 private Drawable mChipDelete = null; 86 87 private int mChipPadding; 88 89 private Tokenizer mTokenizer; 90 91 private Drawable mChipBackgroundPressed; 92 93 private RecipientChip mSelectedChip; 94 95 private int mAlternatesLayout; 96 97 private Bitmap mDefaultContactPhoto; 98 99 private ImageSpan mMoreChip; 100 101 private TextView mMoreItem; 102 103 private final ArrayList<String> mPendingChips = new ArrayList<String>(); 104 105 private float mChipHeight; 106 107 private float mChipFontSize; 108 109 private Validator mValidator; 110 111 private Drawable mInvalidChipBackground; 112 113 private Handler mHandler; 114 115 private static int DISMISS = "dismiss".hashCode(); 116 117 private static final long DISMISS_DELAY = 300; 118 119 private int mPendingChipsCount = 0; 120 121 private static int sSelectedTextColor = -1; 122 123 private static final char COMMIT_CHAR_COMMA = ','; 124 125 private static final char COMMIT_CHAR_SEMICOLON = ';'; 126 127 private static final char COMMIT_CHAR_SPACE = ' '; 128 129 private ListPopupWindow mAlternatesPopup; 130 131 private ListPopupWindow mAddressPopup; 132 133 private ArrayList<RecipientChip> mTemporaryRecipients; 134 135 private ArrayList<RecipientChip> mRemovedSpans; 136 137 private boolean mShouldShrink = true; 138 139 /** 140 * Used with {@link #mAlternatesPopup}. Handles clicks to alternate addresses for a 141 * selected chip. 142 */ 143 private OnItemClickListener mAlternatesListener; 144 145 private int mCheckedItem; 146 private TextWatcher mTextWatcher; 147 148 private ScrollView mScrollView; 149 150 private boolean mTried; 151 152 private final Runnable mAddTextWatcher = new Runnable() { 153 @Override 154 public void run() { 155 if (mTextWatcher == null) { 156 mTextWatcher = new RecipientTextWatcher(); 157 addTextChangedListener(mTextWatcher); 158 } 159 } 160 }; 161 162 private IndividualReplacementTask mIndividualReplacements; 163 164 private Runnable mHandlePendingChips = new Runnable() { 165 166 @Override 167 public void run() { 168 handlePendingChips(); 169 } 170 171 }; 172 173 public RecipientEditTextView(Context context, AttributeSet attrs) { 174 super(context, attrs); 175 if (sSelectedTextColor == -1) { 176 sSelectedTextColor = context.getResources().getColor(android.R.color.white); 177 } 178 mAlternatesPopup = new ListPopupWindow(context); 179 mAddressPopup = new ListPopupWindow(context); 180 mAlternatesListener = new OnItemClickListener() { 181 @Override 182 public void onItemClick(AdapterView<?> adapterView,View view, int position, 183 long rowId) { 184 mAlternatesPopup.setOnItemClickListener(null); 185 replaceChip(mSelectedChip, ((RecipientAlternatesAdapter) adapterView.getAdapter()) 186 .getRecipientEntry(position)); 187 Message delayed = Message.obtain(mHandler, DISMISS); 188 delayed.obj = mAlternatesPopup; 189 mHandler.sendMessageDelayed(delayed, DISMISS_DELAY); 190 clearComposingText(); 191 } 192 }; 193 setSuggestionsEnabled(false); 194 setOnItemClickListener(this); 195 setCustomSelectionActionModeCallback(this); 196 mHandler = new Handler() { 197 @Override 198 public void handleMessage(Message msg) { 199 if (msg.what == DISMISS) { 200 ((ListPopupWindow) msg.obj).dismiss(); 201 return; 202 } 203 super.handleMessage(msg); 204 } 205 }; 206 mTextWatcher = new RecipientTextWatcher(); 207 addTextChangedListener(mTextWatcher); 208 } 209 210 @Override 211 public <T extends ListAdapter & Filterable> void setAdapter(T adapter) { 212 super.setAdapter(adapter); 213 if (adapter == null) { 214 return; 215 } 216 } 217 218 @Override 219 public void onSelectionChanged(int start, int end) { 220 // When selection changes, see if it is inside the chips area. 221 // If so, move the cursor back after the chips again. 222 Spannable span = getSpannable(); 223 int textLength = getText().length(); 224 RecipientChip[] chips = span.getSpans(start, textLength, RecipientChip.class); 225 if (chips != null && chips.length > 0) { 226 if (chips != null && chips.length > 0) { 227 // Grab the last chip and set the cursor to after it. 228 setSelection(Math.min(span.getSpanEnd(chips[chips.length - 1]) + 1, textLength)); 229 } 230 } 231 super.onSelectionChanged(start, end); 232 } 233 234 /** 235 * Convenience method: Append the specified text slice to the TextView's 236 * display buffer, upgrading it to BufferType.EDITABLE if it was 237 * not already editable. Commas are excluded as they are added automatically 238 * by the view. 239 */ 240 @Override 241 public void append(CharSequence text, int start, int end) { 242 // We don't care about watching text changes while appending. 243 if (mTextWatcher != null) { 244 removeTextChangedListener(mTextWatcher); 245 } 246 super.append(text, start, end); 247 if (!TextUtils.isEmpty(text) && TextUtils.getTrimmedLength(text) > 0) { 248 final String displayString = (String) text; 249 int seperatorPos = displayString.indexOf(COMMIT_CHAR_COMMA); 250 if (seperatorPos != 0 && !TextUtils.isEmpty(displayString) 251 && TextUtils.getTrimmedLength(displayString) > 0) { 252 mPendingChipsCount++; 253 mPendingChips.add((String)text); 254 } 255 } 256 // Put a message on the queue to make sure we ALWAYS handle pending chips. 257 if (mPendingChipsCount > 0) { 258 postHandlePendingChips(); 259 } 260 mHandler.post(mAddTextWatcher); 261 } 262 263 @Override 264 public void onFocusChanged(boolean hasFocus, int direction, Rect previous) { 265 if (!hasFocus) { 266 shrink(); 267 } else { 268 expand(); 269 scrollLineIntoView(getLineCount()); 270 } 271 super.onFocusChanged(hasFocus, direction, previous); 272 } 273 274 private void shrink() { 275 if (mSelectedChip != null) { 276 clearSelectedChip(); 277 } else { 278 // Reset any pending chips as they would have been handled 279 // when the field lost focus. 280 if (mPendingChipsCount > 0) { 281 postHandlePendingChips(); 282 } else { 283 Editable editable = getText(); 284 int end = getSelectionEnd(); 285 int start = mTokenizer.findTokenStart(editable, end); 286 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 287 if ((chips == null || chips.length == 0)) { 288 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 289 // In the middle of chip; treat this as an edit 290 // and commit the whole token. 291 if (whatEnd != getSelectionEnd()) { 292 handleEdit(start, whatEnd); 293 } else { 294 commitChip(start, end, editable); 295 } 296 } 297 } 298 mHandler.post(mAddTextWatcher); 299 } 300 createMoreChip(); 301 } 302 303 private void expand() { 304 removeMoreChip(); 305 setCursorVisible(true); 306 Editable text = getText(); 307 setSelection(text != null && text.length() > 0 ? text.length() : 0); 308 // If there are any temporary chips, try replacing them now that the user 309 // has expanded the field. 310 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0) { 311 new RecipientReplacementTask().execute(); 312 mTemporaryRecipients = null; 313 } 314 } 315 316 private CharSequence ellipsizeText(CharSequence text, TextPaint paint, float maxWidth) { 317 paint.setTextSize(mChipFontSize); 318 if (maxWidth <= 0 && Log.isLoggable(TAG, Log.DEBUG)) { 319 Log.d(TAG, "Max width is negative: " + maxWidth); 320 } 321 return TextUtils.ellipsize(text, paint, maxWidth, 322 TextUtils.TruncateAt.END); 323 } 324 325 private Bitmap createSelectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 326 // Ellipsize the text so that it takes AT MOST the entire width of the 327 // autocomplete text entry area. Make sure to leave space for padding 328 // on the sides. 329 int height = (int) mChipHeight; 330 int deleteWidth = height; 331 CharSequence ellipsizedText = ellipsizeText(contact.getDisplayName(), paint, 332 calculateAvailableWidth(true) - deleteWidth); 333 334 // Make sure there is a minimum chip width so the user can ALWAYS 335 // tap a chip without difficulty. 336 int width = Math.max(deleteWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 337 ellipsizedText.length())) 338 + (mChipPadding * 2) + deleteWidth); 339 340 // Create the background of the chip. 341 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 342 Canvas canvas = new Canvas(tmpBitmap); 343 if (mChipBackgroundPressed != null) { 344 mChipBackgroundPressed.setBounds(0, 0, width, height); 345 mChipBackgroundPressed.draw(canvas); 346 paint.setColor(sSelectedTextColor); 347 // Align the display text with where the user enters text. 348 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, height 349 - Math.abs(height - mChipFontSize)/2, paint); 350 // Make the delete a square. 351 mChipDelete.setBounds(width - deleteWidth, 0, width, height); 352 mChipDelete.draw(canvas); 353 } else { 354 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 355 } 356 return tmpBitmap; 357 } 358 359 360 /** 361 * Get the background drawable for a RecipientChip. 362 */ 363 public Drawable getChipBackground(RecipientEntry contact) { 364 return (mValidator != null && mValidator.isValid(contact.getDestination())) ? 365 mChipBackground : mInvalidChipBackground; 366 } 367 368 private Bitmap createUnselectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 369 // Ellipsize the text so that it takes AT MOST the entire width of the 370 // autocomplete text entry area. Make sure to leave space for padding 371 // on the sides. 372 int height = (int) mChipHeight; 373 int iconWidth = height; 374 String displayText = 375 !TextUtils.isEmpty(contact.getDisplayName()) ? contact.getDisplayName() : 376 !TextUtils.isEmpty(contact.getDestination()) ? contact.getDestination() : ""; 377 CharSequence ellipsizedText = ellipsizeText(displayText, paint, 378 calculateAvailableWidth(false) - iconWidth); 379 // Make sure there is a minimum chip width so the user can ALWAYS 380 // tap a chip without difficulty. 381 int width = Math.max(iconWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 382 ellipsizedText.length())) 383 + (mChipPadding * 2) + iconWidth); 384 385 // Create the background of the chip. 386 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 387 Canvas canvas = new Canvas(tmpBitmap); 388 Drawable background = getChipBackground(contact); 389 if (background != null) { 390 background.setBounds(0, 0, width, height); 391 background.draw(canvas); 392 393 // Don't draw photos for recipients that have been typed in. 394 if (contact.getContactId() != RecipientEntry.INVALID_CONTACT) { 395 byte[] photoBytes = contact.getPhotoBytes(); 396 // There may not be a photo yet if anything but the first contact address 397 // was selected. 398 if (photoBytes == null && contact.getPhotoThumbnailUri() != null) { 399 // TODO: cache this in the recipient entry? 400 ((BaseRecipientAdapter) getAdapter()).fetchPhoto(contact, contact 401 .getPhotoThumbnailUri()); 402 photoBytes = contact.getPhotoBytes(); 403 } 404 405 Bitmap photo; 406 if (photoBytes != null) { 407 photo = BitmapFactory.decodeByteArray(photoBytes, 0, photoBytes.length); 408 } else { 409 // TODO: can the scaled down default photo be cached? 410 photo = mDefaultContactPhoto; 411 } 412 // Draw the photo on the left side. 413 Matrix matrix = new Matrix(); 414 RectF src = new RectF(0, 0, photo.getWidth(), photo.getHeight()); 415 RectF dst = new RectF(width - iconWidth, 0, width, height); 416 matrix.setRectToRect(src, dst, Matrix.ScaleToFit.CENTER); 417 canvas.drawBitmap(photo, matrix, paint); 418 } else { 419 // Don't leave any space for the icon. It isn't being drawn. 420 iconWidth = 0; 421 } 422 423 // Align the display text with where the user enters text. 424 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 425 height - Math.abs(height - mChipFontSize) / 2, paint); 426 } else { 427 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 428 } 429 return tmpBitmap; 430 } 431 432 public RecipientChip constructChipSpan(RecipientEntry contact, int offset, boolean pressed) 433 throws NullPointerException { 434 if (mChipBackground == null) { 435 throw new NullPointerException( 436 "Unable to render any chips as setChipDimensions was not called."); 437 } 438 Layout layout = getLayout(); 439 440 TextPaint paint = getPaint(); 441 float defaultSize = paint.getTextSize(); 442 int defaultColor = paint.getColor(); 443 444 Bitmap tmpBitmap; 445 if (pressed) { 446 tmpBitmap = createSelectedChip(contact, paint, layout); 447 448 } else { 449 tmpBitmap = createUnselectedChip(contact, paint, layout); 450 } 451 452 // Pass the full text, un-ellipsized, to the chip. 453 Drawable result = new BitmapDrawable(getResources(), tmpBitmap); 454 result.setBounds(0, 0, tmpBitmap.getWidth(), tmpBitmap.getHeight()); 455 RecipientChip recipientChip = new RecipientChip(result, contact, offset); 456 // Return text to the original size. 457 paint.setTextSize(defaultSize); 458 paint.setColor(defaultColor); 459 return recipientChip; 460 } 461 462 /** 463 * Calculate the bottom of the line the chip will be located on using: 464 * 1) which line the chip appears on 465 * 2) the height of a chip 466 * 3) padding built into the edit text view 467 */ 468 private int calculateOffsetFromBottom(int line) { 469 // Line offsets start at zero. 470 int actualLine = getLineCount() - (line + 1); 471 return -((actualLine * ((int)mChipHeight) + getPaddingBottom()) + getPaddingTop()); 472 } 473 474 /** 475 * Get the max amount of space a chip can take up. The formula takes into 476 * account the width of the EditTextView, any view padding, and padding 477 * that will be added to the chip. 478 */ 479 private float calculateAvailableWidth(boolean pressed) { 480 return getWidth() - getPaddingLeft() - getPaddingRight() - (mChipPadding * 2); 481 } 482 483 /** 484 * Set all chip dimensions and resources. This has to be done from the 485 * application as this is a static library. 486 * @param chipBackground 487 * @param chipBackgroundPressed 488 * @param invalidChip 489 * @param chipDelete 490 * @param defaultContact 491 * @param moreResource 492 * @param alternatesLayout 493 * @param chipHeight 494 * @param padding Padding around the text in a chip 495 */ 496 public void setChipDimensions(Drawable chipBackground, Drawable chipBackgroundPressed, 497 Drawable invalidChip, Drawable chipDelete, Bitmap defaultContact, int moreResource, 498 int alternatesLayout, float chipHeight, float padding, 499 float chipFontSize) { 500 mChipBackground = chipBackground; 501 mChipBackgroundPressed = chipBackgroundPressed; 502 mChipDelete = chipDelete; 503 mChipPadding = (int) padding; 504 mAlternatesLayout = alternatesLayout; 505 mDefaultContactPhoto = defaultContact; 506 mMoreItem = (TextView) LayoutInflater.from(getContext()).inflate(moreResource, null); 507 mChipHeight = chipHeight; 508 mChipFontSize = chipFontSize; 509 mInvalidChipBackground = invalidChip; 510 } 511 512 /** 513 * Set whether to shrink the recipients field such that at most 514 * one line of recipients chips are shown when the field loses 515 * focus. By default, the number of displayed recipients will be 516 * limited and a "more" chip will be shown when focus is lost. 517 * @param shrink 518 */ 519 public void setOnFocusListShrinkRecipients(boolean shrink) { 520 mShouldShrink = shrink; 521 } 522 523 @Override 524 public void onSizeChanged(int width, int height, int oldw, int oldh) { 525 super.onSizeChanged(width, height, oldw, oldh); 526 if (width != 0 && height != 0 && mPendingChipsCount > 0) { 527 postHandlePendingChips(); 528 } 529 // Try to find the scroll view parent, if it exists. 530 if (mScrollView == null && !mTried) { 531 ViewParent parent = getParent(); 532 while (parent != null && !(parent instanceof ScrollView)) { 533 parent = parent.getParent(); 534 } 535 if (parent != null) { 536 mScrollView = (ScrollView) parent; 537 } 538 mTried = true; 539 } 540 } 541 542 private void postHandlePendingChips() { 543 mHandler.removeCallbacks(mHandlePendingChips); 544 mHandler.post(mHandlePendingChips); 545 } 546 547 private void handlePendingChips() { 548 if (mPendingChipsCount <= 0) { 549 return; 550 } 551 if (getWidth() <= 0) { 552 // The widget has not been sized yet. 553 // This will be called as a result of onSizeChanged 554 // at a later point. 555 return; 556 } 557 synchronized (mPendingChips) { 558 mTemporaryRecipients = new ArrayList<RecipientChip>(mPendingChipsCount); 559 Editable editable = getText(); 560 // Tokenize! 561 for (int i = 0; i < mPendingChips.size(); i++) { 562 String current = mPendingChips.get(i); 563 int tokenStart = editable.toString().indexOf(current); 564 int tokenEnd = tokenStart + current.length(); 565 if (tokenStart >= 0) { 566 // When we have a valid token, include it with the token 567 // to the left. 568 if (tokenEnd < editable.length() - 2 569 && editable.charAt(tokenEnd) == COMMIT_CHAR_COMMA) { 570 tokenEnd++; 571 } 572 createReplacementChip(tokenStart, tokenEnd, editable); 573 } 574 mPendingChipsCount--; 575 } 576 sanitizeSpannable(); 577 if (mTemporaryRecipients != null 578 && mTemporaryRecipients.size() <= RecipientAlternatesAdapter.MAX_LOOKUPS) { 579 if (hasFocus() || mTemporaryRecipients.size() < CHIP_LIMIT) { 580 new RecipientReplacementTask().execute(); 581 mTemporaryRecipients = null; 582 } else { 583 // Create the "more" chip 584 mIndividualReplacements = new IndividualReplacementTask(); 585 mIndividualReplacements.execute(new ArrayList<RecipientChip>( 586 mTemporaryRecipients.subList(0, CHIP_LIMIT))); 587 588 createMoreChip(); 589 } 590 } else { 591 // There are too many recipients to look up, so just fall back 592 // to 593 // showing addresses for all of them. 594 mTemporaryRecipients = null; 595 createMoreChip(); 596 } 597 mPendingChipsCount = 0; 598 mPendingChips.clear(); 599 } 600 } 601 602 /** 603 * Remove any characters after the last valid chip. 604 */ 605 private void sanitizeSpannable() { 606 // Find the last chip; eliminate any commit characters after it. 607 RecipientChip[] chips = getRecipients(); 608 if (chips != null && chips.length > 0) { 609 int end; 610 ImageSpan lastSpan; 611 if (mMoreChip != null) { 612 lastSpan = mMoreChip; 613 } else { 614 lastSpan = chips[chips.length - 1]; 615 } 616 end = getSpannable().getSpanEnd(lastSpan); 617 Editable editable = getText(); 618 int length = editable.length(); 619 if (length > end) { 620 // See what characters occur after that and eliminate them. 621 if (Log.isLoggable(TAG, Log.DEBUG)) { 622 Log.d(TAG, "There were extra characters after the last tokenizable entry." 623 + editable); 624 } 625 editable.delete(end + 1, length); 626 } 627 } 628 } 629 630 /** 631 * Create a chip that represents just the email address of a recipient. At some later 632 * point, this chip will be attached to a real contact entry, if one exists. 633 */ 634 private void createReplacementChip(int tokenStart, int tokenEnd, Editable editable) { 635 if (alreadyHasChip(tokenStart, tokenEnd)) { 636 // There is already a chip present at this location. 637 // Don't recreate it. 638 return; 639 } 640 String token = editable.toString().substring(tokenStart, tokenEnd); 641 int commitCharIndex = token.trim().lastIndexOf(COMMIT_CHAR_COMMA); 642 if (commitCharIndex == token.length() - 1) { 643 token = token.substring(0, token.length() - 1); 644 } 645 RecipientEntry entry = createTokenizedEntry(token); 646 if (entry != null) { 647 String destText = entry.getDestination(); 648 destText = (String) mTokenizer.terminateToken(destText); 649 // Always leave a blank space at the end of a chip. 650 int textLength = destText.length() - 1; 651 SpannableString chipText = new SpannableString(destText); 652 int end = getSelectionEnd(); 653 int start = mTokenizer.findTokenStart(getText(), end); 654 RecipientChip chip = null; 655 try { 656 chip = constructChipSpan(entry, start, false); 657 chipText.setSpan(chip, 0, textLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 658 } catch (NullPointerException e) { 659 Log.e(TAG, e.getMessage(), e); 660 } 661 662 editable.replace(tokenStart, tokenEnd, chipText); 663 // Add this chip to the list of entries "to replace" 664 if (chip != null) { 665 mTemporaryRecipients.add(chip); 666 } 667 } 668 } 669 670 private RecipientEntry createTokenizedEntry(String token) { 671 if (TextUtils.isEmpty(token)) { 672 return null; 673 } 674 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(token); 675 String display = null; 676 if (isValid(token) && tokens != null && tokens.length > 0) { 677 // If we can get a name from tokenizing, then generate an entry from 678 // this. 679 display = tokens[0].getName(); 680 if (!TextUtils.isEmpty(display)) { 681 return RecipientEntry.constructGeneratedEntry(display, token); 682 } 683 } 684 // Unable to validate the token or to create a valid token from it. 685 // Just create a chip the user can edit. 686 if (mValidator != null && !mValidator.isValid(token)) { 687 // Try fixing up the entry using the validator. 688 token = mValidator.fixText(token).toString(); 689 if (!TextUtils.isEmpty(token)) { 690 // protect against the case of a validator with a null domain, 691 // which doesn't add a domain to the token 692 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(token); 693 if (tokenized.length > 0) { 694 token = tokenized[0].getAddress(); 695 } 696 } 697 } 698 // Otherwise, fallback to just creating an editable email address chip. 699 return RecipientEntry.constructFakeEntry(token); 700 } 701 702 private boolean isValid(String text) { 703 return mValidator == null ? true : mValidator.isValid(text); 704 } 705 706 private String tokenizeAddress(String destination) { 707 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(destination); 708 if (tokens != null && tokens.length > 0) { 709 return tokens[0].getAddress(); 710 } 711 return destination; 712 } 713 714 @Override 715 public void setTokenizer(Tokenizer tokenizer) { 716 mTokenizer = tokenizer; 717 super.setTokenizer(mTokenizer); 718 } 719 720 @Override 721 public void setValidator(Validator validator) { 722 mValidator = validator; 723 super.setValidator(validator); 724 } 725 726 /** 727 * We cannot use the default mechanism for replaceText. Instead, 728 * we override onItemClickListener so we can get all the associated 729 * contact information including display text, address, and id. 730 */ 731 @Override 732 protected void replaceText(CharSequence text) { 733 return; 734 } 735 736 /** 737 * Dismiss any selected chips when the back key is pressed. 738 */ 739 @Override 740 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 741 if (keyCode == KeyEvent.KEYCODE_BACK) { 742 clearSelectedChip(); 743 } 744 return super.onKeyPreIme(keyCode, event); 745 } 746 747 /** 748 * Monitor key presses in this view to see if the user types 749 * any commit keys, which consist of ENTER, TAB, or DPAD_CENTER. 750 * If the user has entered text that has contact matches and types 751 * a commit key, create a chip from the topmost matching contact. 752 * If the user has entered text that has no contact matches and types 753 * a commit key, then create a chip from the text they have entered. 754 */ 755 @Override 756 public boolean onKeyUp(int keyCode, KeyEvent event) { 757 switch (keyCode) { 758 case KeyEvent.KEYCODE_ENTER: 759 case KeyEvent.KEYCODE_DPAD_CENTER: 760 if (event.hasNoModifiers()) { 761 if (commitDefault()) { 762 return true; 763 } 764 if (mSelectedChip != null) { 765 clearSelectedChip(); 766 return true; 767 } else if (focusNext()) { 768 return true; 769 } 770 } 771 break; 772 case KeyEvent.KEYCODE_TAB: 773 if (event.hasNoModifiers()) { 774 if (mSelectedChip != null) { 775 clearSelectedChip(); 776 } else { 777 commitDefault(); 778 } 779 if (focusNext()) { 780 return true; 781 } 782 } 783 } 784 return super.onKeyUp(keyCode, event); 785 } 786 787 private boolean focusNext() { 788 View next = focusSearch(View.FOCUS_DOWN); 789 if (next != null) { 790 next.requestFocus(); 791 return true; 792 } 793 return false; 794 } 795 796 /** 797 * Create a chip from the default selection. If the popup is showing, the 798 * default is the first item in the popup suggestions list. Otherwise, it is 799 * whatever the user had typed in. End represents where the the tokenizer 800 * should search for a token to turn into a chip. 801 * @return If a chip was created from a real contact. 802 */ 803 private boolean commitDefault() { 804 Editable editable = getText(); 805 int end = getSelectionEnd(); 806 int start = mTokenizer.findTokenStart(editable, end); 807 808 if (shouldCreateChip(start, end)) { 809 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 810 // In the middle of chip; treat this as an edit 811 // and commit the whole token. 812 if (whatEnd != getSelectionEnd()) { 813 handleEdit(start, whatEnd); 814 return true; 815 } 816 return commitChip(start, end , editable); 817 } 818 return false; 819 } 820 821 private void commitByCharacter() { 822 Editable editable = getText(); 823 int end = getSelectionEnd(); 824 int start = mTokenizer.findTokenStart(editable, end); 825 if (shouldCreateChip(start, end)) { 826 commitChip(start, end, editable); 827 } 828 setSelection(getText().length()); 829 } 830 831 private boolean commitChip(int start, int end, Editable editable) { 832 if (getAdapter().getCount() > 0 && enoughToFilter()) { 833 // choose the first entry. 834 submitItemAtPosition(0); 835 dismissDropDown(); 836 return true; 837 } else { 838 int tokenEnd = mTokenizer.findTokenEnd(editable, start); 839 String text = editable.toString().substring(start, tokenEnd).trim(); 840 clearComposingText(); 841 if (text != null && text.length() > 0 && !text.equals(" ")) { 842 RecipientEntry entry = createTokenizedEntry(text); 843 if (entry != null) { 844 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 845 CharSequence chipText = createChip(entry, false); 846 editable.replace(start, end, chipText); 847 } 848 dismissDropDown(); 849 return true; 850 } 851 } 852 return false; 853 } 854 855 private boolean shouldCreateChip(int start, int end) { 856 return hasFocus() && enoughToFilter() && !alreadyHasChip(start, end); 857 } 858 859 private boolean alreadyHasChip(int start, int end) { 860 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 861 if ((chips == null || chips.length == 0)) { 862 return false; 863 } 864 return true; 865 } 866 867 private void handleEdit(int start, int end) { 868 // This is in the middle of a chip, so select out the whole chip 869 // and commit it. 870 Editable editable = getText(); 871 setSelection(end); 872 String text = getText().toString().substring(start, end); 873 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 874 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 875 CharSequence chipText = createChip(entry, false); 876 editable.replace(start, getSelectionEnd(), chipText); 877 dismissDropDown(); 878 } 879 880 /** 881 * If there is a selected chip, delegate the key events 882 * to the selected chip. 883 */ 884 @Override 885 public boolean onKeyDown(int keyCode, KeyEvent event) { 886 if (mSelectedChip != null && keyCode == KeyEvent.KEYCODE_DEL) { 887 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 888 mAlternatesPopup.dismiss(); 889 } 890 removeChip(mSelectedChip); 891 } 892 893 if (keyCode == KeyEvent.KEYCODE_ENTER && event.hasNoModifiers()) { 894 return true; 895 } 896 897 return super.onKeyDown(keyCode, event); 898 } 899 900 private Spannable getSpannable() { 901 return getText(); 902 } 903 904 private int getChipStart(RecipientChip chip) { 905 return getSpannable().getSpanStart(chip); 906 } 907 908 private int getChipEnd(RecipientChip chip) { 909 return getSpannable().getSpanEnd(chip); 910 } 911 912 /** 913 * Instead of filtering on the entire contents of the edit box, 914 * this subclass method filters on the range from 915 * {@link Tokenizer#findTokenStart} to {@link #getSelectionEnd} 916 * if the length of that range meets or exceeds {@link #getThreshold} 917 * and makes sure that the range is not already a Chip. 918 */ 919 @Override 920 protected void performFiltering(CharSequence text, int keyCode) { 921 if (enoughToFilter()) { 922 int end = getSelectionEnd(); 923 int start = mTokenizer.findTokenStart(text, end); 924 // If this is a RecipientChip, don't filter 925 // on its contents. 926 Spannable span = getSpannable(); 927 RecipientChip[] chips = span.getSpans(start, end, RecipientChip.class); 928 if (chips != null && chips.length > 0) { 929 return; 930 } 931 } 932 super.performFiltering(text, keyCode); 933 } 934 935 private void clearSelectedChip() { 936 if (mSelectedChip != null) { 937 unselectChip(mSelectedChip); 938 mSelectedChip = null; 939 } 940 setCursorVisible(true); 941 } 942 943 /** 944 * Monitor touch events in the RecipientEditTextView. 945 * If the view does not have focus, any tap on the view 946 * will just focus the view. If the view has focus, determine 947 * if the touch target is a recipient chip. If it is and the chip 948 * is not selected, select it and clear any other selected chips. 949 * If it isn't, then select that chip. 950 */ 951 @Override 952 public boolean onTouchEvent(MotionEvent event) { 953 if (!isFocused()) { 954 // Ignore any chip taps until this view is focused. 955 return super.onTouchEvent(event); 956 } 957 958 boolean handled = super.onTouchEvent(event); 959 int action = event.getAction(); 960 boolean chipWasSelected = false; 961 962 if (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_DOWN) { 963 float x = event.getX(); 964 float y = event.getY(); 965 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 966 RecipientChip currentChip = findChip(offset); 967 if (currentChip != null) { 968 if (action == MotionEvent.ACTION_UP) { 969 if (mSelectedChip != null && mSelectedChip != currentChip) { 970 clearSelectedChip(); 971 mSelectedChip = selectChip(currentChip); 972 } else if (mSelectedChip == null) { 973 // Selection may have moved due to the tap event, 974 // but make sure we correctly reset selection to the 975 // end so that any unfinished chips are committed. 976 setSelection(getText().length()); 977 commitDefault(); 978 mSelectedChip = selectChip(currentChip); 979 } else { 980 onClick(mSelectedChip, offset, x, y); 981 } 982 } 983 chipWasSelected = true; 984 handled = true; 985 } 986 } 987 if (action == MotionEvent.ACTION_UP && !chipWasSelected) { 988 clearSelectedChip(); 989 } 990 return handled; 991 } 992 993 private void scrollLineIntoView(int line) { 994 if (mScrollView != null) { 995 mScrollView.scrollBy(0, calculateOffsetFromBottom(line)); 996 } 997 } 998 999 private void showAlternates(RecipientChip currentChip, ListPopupWindow alternatesPopup, 1000 int width, Context context) { 1001 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1002 int bottom = calculateOffsetFromBottom(line); 1003 // Align the alternates popup with the left side of the View, 1004 // regardless of the position of the chip tapped. 1005 alternatesPopup.setWidth(width); 1006 alternatesPopup.setAnchorView(this); 1007 alternatesPopup.setVerticalOffset(bottom); 1008 alternatesPopup.setAdapter(createAlternatesAdapter(currentChip)); 1009 alternatesPopup.setOnItemClickListener(mAlternatesListener); 1010 alternatesPopup.show(); 1011 ListView listView = alternatesPopup.getListView(); 1012 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1013 // Checked item would be -1 if the adapter has not 1014 // loaded the view that should be checked yet. The 1015 // variable will be set correctly when onCheckedItemChanged 1016 // is called in a separate thread. 1017 if (mCheckedItem != -1) { 1018 listView.setItemChecked(mCheckedItem, true); 1019 mCheckedItem = -1; 1020 } 1021 } 1022 1023 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 1024 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 1025 mAlternatesLayout, this); 1026 } 1027 1028 private ListAdapter createSingleAddressAdapter(RecipientChip currentChip) { 1029 return new SingleRecipientArrayAdapter(getContext(), mAlternatesLayout, currentChip 1030 .getEntry()); 1031 } 1032 1033 @Override 1034 public void onCheckedItemChanged(int position) { 1035 ListView listView = mAlternatesPopup.getListView(); 1036 if (listView != null && listView.getCheckedItemCount() == 0) { 1037 listView.setItemChecked(position, true); 1038 } else { 1039 mCheckedItem = position; 1040 } 1041 } 1042 1043 // TODO: This algorithm will need a lot of tweaking after more people have used 1044 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 1045 // what comes before the finger. 1046 private int putOffsetInRange(int o) { 1047 int offset = o; 1048 Editable text = getText(); 1049 int length = text.length(); 1050 // Remove whitespace from end to find "real end" 1051 int realLength = length; 1052 for (int i = length - 1; i >= 0; i--) { 1053 if (text.charAt(i) == ' ') { 1054 realLength--; 1055 } else { 1056 break; 1057 } 1058 } 1059 1060 // If the offset is beyond or at the end of the text, 1061 // leave it alone. 1062 if (offset >= realLength) { 1063 return offset; 1064 } 1065 Editable editable = getText(); 1066 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 1067 // Keep walking backward! 1068 offset--; 1069 } 1070 return offset; 1071 } 1072 1073 private int findText(Editable text, int offset) { 1074 if (text.charAt(offset) != ' ') { 1075 return offset; 1076 } 1077 return -1; 1078 } 1079 1080 private RecipientChip findChip(int offset) { 1081 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1082 // Find the chip that contains this offset. 1083 for (int i = 0; i < chips.length; i++) { 1084 RecipientChip chip = chips[i]; 1085 int start = getChipStart(chip); 1086 int end = getChipEnd(chip); 1087 if (offset >= start && offset <= end) { 1088 return chip; 1089 } 1090 } 1091 return null; 1092 } 1093 1094 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 1095 String displayText = entry.getDestination(); 1096 displayText = (String) mTokenizer.terminateToken(displayText); 1097 // Always leave a blank space at the end of a chip. 1098 int textLength = displayText.length()-1; 1099 SpannableString chipText = new SpannableString(displayText); 1100 int end = getSelectionEnd(); 1101 int start = mTokenizer.findTokenStart(getText(), end); 1102 try { 1103 chipText.setSpan(constructChipSpan(entry, start, pressed), 0, textLength, 1104 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1105 } catch (NullPointerException e) { 1106 Log.e(TAG, e.getMessage(), e); 1107 return null; 1108 } 1109 1110 return chipText; 1111 } 1112 1113 /** 1114 * When an item in the suggestions list has been clicked, create a chip from the 1115 * contact information of the selected item. 1116 */ 1117 @Override 1118 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1119 submitItemAtPosition(position); 1120 } 1121 1122 private void submitItemAtPosition(int position) { 1123 RecipientEntry entry = createValidatedEntry( 1124 (RecipientEntry)getAdapter().getItem(position)); 1125 if (entry == null) { 1126 return; 1127 } 1128 clearComposingText(); 1129 1130 int end = getSelectionEnd(); 1131 int start = mTokenizer.findTokenStart(getText(), end); 1132 1133 Editable editable = getText(); 1134 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1135 CharSequence chip = createChip(entry, false); 1136 if (chip != null) { 1137 editable.replace(start, end, chip); 1138 } 1139 } 1140 1141 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1142 if (item == null) { 1143 return null; 1144 } 1145 final RecipientEntry entry; 1146 // If the display name and the address are the same, or if this is a 1147 // valid contact, but the destination is invalid, then make this a fake 1148 // recipient that is editable. 1149 String destination = item.getDestination(); 1150 if (TextUtils.isEmpty(item.getDisplayName()) 1151 || TextUtils.equals(item.getDisplayName(), destination) 1152 || (mValidator != null && !mValidator.isValid(destination))) { 1153 entry = RecipientEntry.constructFakeEntry(destination); 1154 } else { 1155 entry = item; 1156 } 1157 return entry; 1158 } 1159 1160 /** Returns a collection of contact Id for each chip inside this View. */ 1161 /* package */ Collection<Long> getContactIds() { 1162 final Set<Long> result = new HashSet<Long>(); 1163 RecipientChip[] chips = getRecipients(); 1164 if (chips != null) { 1165 for (RecipientChip chip : chips) { 1166 result.add(chip.getContactId()); 1167 } 1168 } 1169 return result; 1170 } 1171 1172 private RecipientChip[] getRecipients() { 1173 return getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1174 } 1175 1176 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1177 /* package */ Collection<Long> getDataIds() { 1178 final Set<Long> result = new HashSet<Long>(); 1179 RecipientChip [] chips = getRecipients(); 1180 if (chips != null) { 1181 for (RecipientChip chip : chips) { 1182 result.add(chip.getDataId()); 1183 } 1184 } 1185 return result; 1186 } 1187 1188 1189 @Override 1190 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1191 return false; 1192 } 1193 1194 @Override 1195 public void onDestroyActionMode(ActionMode mode) { 1196 } 1197 1198 @Override 1199 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1200 return false; 1201 } 1202 1203 /** 1204 * No chips are selectable. 1205 */ 1206 @Override 1207 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1208 return false; 1209 } 1210 1211 /** 1212 * Create the more chip. The more chip is text that replaces any chips that 1213 * do not fit in the pre-defined available space when the 1214 * RecipientEditTextView loses focus. 1215 */ 1216 private void createMoreChip() { 1217 if (!mShouldShrink) { 1218 return; 1219 } 1220 1221 RecipientChip[] recipients = getRecipients(); 1222 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1223 mMoreChip = null; 1224 return; 1225 } 1226 int numRecipients = recipients.length; 1227 int overage = numRecipients - CHIP_LIMIT; 1228 Editable text = getText(); 1229 String moreText = String.format(mMoreItem.getText().toString(), overage); 1230 TextPaint morePaint = new TextPaint(getPaint()); 1231 morePaint.setTextSize(mMoreItem.getTextSize()); 1232 morePaint.setColor(mMoreItem.getCurrentTextColor()); 1233 int width = (int)morePaint.measureText(moreText) + mMoreItem.getPaddingLeft() 1234 + mMoreItem.getPaddingRight(); 1235 int height = getLineHeight(); 1236 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1237 Canvas canvas = new Canvas(drawable); 1238 canvas.drawText(moreText, 0, moreText.length(), 0, height - getLayout().getLineDescent(0), 1239 morePaint); 1240 1241 Drawable result = new BitmapDrawable(getResources(), drawable); 1242 result.setBounds(0, 0, width, height); 1243 ImageSpan moreSpan = new ImageSpan(result); 1244 Spannable spannable = getSpannable(); 1245 // Remove the overage chips. 1246 if (recipients == null || recipients.length == 0) { 1247 Log.w(TAG, 1248 "We have recipients. Tt should not be possible to have zero RecipientChips."); 1249 mMoreChip = null; 1250 return; 1251 } 1252 mRemovedSpans = new ArrayList<RecipientChip>(); 1253 int totalReplaceStart = 0; 1254 int totalReplaceEnd = 0; 1255 for (int i = numRecipients - overage; i < recipients.length; i++) { 1256 mRemovedSpans.add(recipients[i]); 1257 if (i == numRecipients - overage) { 1258 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1259 } 1260 if (i == recipients.length - 1) { 1261 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1262 } 1263 if (mTemporaryRecipients != null && !mTemporaryRecipients.contains(recipients[i])) { 1264 recipients[i].storeChipStart(spannable.getSpanStart(recipients[i])); 1265 recipients[i].storeChipEnd(spannable.getSpanEnd(recipients[i])); 1266 } 1267 spannable.removeSpan(recipients[i]); 1268 } 1269 // TODO: why would these ever be backwards? 1270 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1271 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1272 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1273 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1274 text.replace(start, end, chipText); 1275 mMoreChip = moreSpan; 1276 } 1277 1278 /** 1279 * Replace the more chip, if it exists, with all of the recipient chips it had 1280 * replaced when the RecipientEditTextView gains focus. 1281 */ 1282 private void removeMoreChip() { 1283 if (mMoreChip != null) { 1284 Spannable span = getSpannable(); 1285 span.removeSpan(mMoreChip); 1286 mMoreChip = null; 1287 // Re-add the spans that were removed. 1288 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1289 // Recreate each removed span. 1290 Editable editable = getText(); 1291 for (RecipientChip chip : mRemovedSpans) { 1292 int chipStart = chip.getStoredChipStart(); 1293 int chipEnd; 1294 String token; 1295 if (chipStart == -1) { 1296 // Need to find the location of the chip, again. 1297 token = (String)mTokenizer.terminateToken(chip.getEntry().getDestination()); 1298 chipStart = editable.toString().indexOf(token); 1299 // -1 for the space! 1300 chipEnd = chipStart + token.length() - 1; 1301 } else { 1302 chipEnd = Math.min(editable.length(), chip.getStoredChipEnd()); 1303 } 1304 if (Log.isLoggable(TAG, Log.DEBUG) && chipEnd != chip.getStoredChipEnd()) { 1305 Log.d(TAG, 1306 "Unexpectedly, the chip ended after the end of the editable text. " 1307 + "Chip End " + chip.getStoredChipEnd() 1308 + "Editable length " + editable.length()); 1309 } 1310 // Only set the span if we found a matching token. 1311 if (chipStart != -1) { 1312 editable.setSpan(chip, chipStart, chipEnd, 1313 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1314 } 1315 } 1316 mRemovedSpans.clear(); 1317 } 1318 } 1319 } 1320 1321 /** 1322 * Show specified chip as selected. If the RecipientChip is just an email address, 1323 * selecting the chip will take the contents of the chip and place it at 1324 * the end of the RecipientEditTextView for inline editing. If the 1325 * RecipientChip is a complete contact, then selecting the chip 1326 * will change the background color of the chip, show the delete icon, 1327 * and a popup window with the address in use highlighted and any other 1328 * alternate addresses for the contact. 1329 * @param currentChip Chip to select. 1330 * @return A RecipientChip in the selected state or null if the chip 1331 * just contained an email address. 1332 */ 1333 public RecipientChip selectChip(RecipientChip currentChip) { 1334 if (currentChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1335 CharSequence text = currentChip.getValue(); 1336 Editable editable = getText(); 1337 removeChip(currentChip); 1338 editable.append(text); 1339 setCursorVisible(true); 1340 setSelection(editable.length()); 1341 return null; 1342 } else if (currentChip.getContactId() == RecipientEntry.GENERATED_CONTACT) { 1343 int start = getChipStart(currentChip); 1344 int end = getChipEnd(currentChip); 1345 getSpannable().removeSpan(currentChip); 1346 RecipientChip newChip; 1347 try { 1348 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1349 } catch (NullPointerException e) { 1350 Log.e(TAG, e.getMessage(), e); 1351 return null; 1352 } 1353 Editable editable = getText(); 1354 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1355 if (start == -1 || end == -1) { 1356 Log.d(TAG, "The chip being selected no longer exists but should."); 1357 } else { 1358 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1359 } 1360 newChip.setSelected(true); 1361 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1362 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1363 } 1364 showAddress(newChip, mAddressPopup, getWidth(), getContext()); 1365 setCursorVisible(false); 1366 return newChip; 1367 } else { 1368 int start = getChipStart(currentChip); 1369 int end = getChipEnd(currentChip); 1370 getSpannable().removeSpan(currentChip); 1371 RecipientChip newChip; 1372 try { 1373 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1374 } catch (NullPointerException e) { 1375 Log.e(TAG, e.getMessage(), e); 1376 return null; 1377 } 1378 Editable editable = getText(); 1379 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1380 if (start == -1 || end == -1) { 1381 Log.d(TAG, "The chip being selected no longer exists but should."); 1382 } else { 1383 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1384 } 1385 newChip.setSelected(true); 1386 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1387 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1388 } 1389 showAlternates(newChip, mAlternatesPopup, getWidth(), getContext()); 1390 setCursorVisible(false); 1391 return newChip; 1392 } 1393 } 1394 1395 1396 private void showAddress(final RecipientChip currentChip, final ListPopupWindow popup, 1397 int width, Context context) { 1398 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1399 int bottom = calculateOffsetFromBottom(line); 1400 // Align the alternates popup with the left side of the View, 1401 // regardless of the position of the chip tapped. 1402 popup.setWidth(width); 1403 popup.setAnchorView(this); 1404 popup.setVerticalOffset(bottom); 1405 popup.setAdapter(createSingleAddressAdapter(currentChip)); 1406 popup.setOnItemClickListener(new OnItemClickListener() { 1407 @Override 1408 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1409 unselectChip(currentChip); 1410 popup.dismiss(); 1411 } 1412 }); 1413 popup.show(); 1414 ListView listView = popup.getListView(); 1415 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1416 listView.setItemChecked(0, true); 1417 } 1418 1419 /** 1420 * Remove selection from this chip. Unselecting a RecipientChip will render 1421 * the chip without a delete icon and with an unfocused background. This 1422 * is called when the RecipientChip no longer has focus. 1423 */ 1424 public void unselectChip(RecipientChip chip) { 1425 int start = getChipStart(chip); 1426 int end = getChipEnd(chip); 1427 Editable editable = getText(); 1428 mSelectedChip = null; 1429 if (start == -1 || end == -1) { 1430 Log.e(TAG, "The chip being unselected no longer exists but should."); 1431 } else { 1432 getSpannable().removeSpan(chip); 1433 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1434 editable.removeSpan(chip); 1435 try { 1436 editable.setSpan(constructChipSpan(chip.getEntry(), start, false), start, end, 1437 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1438 } catch (NullPointerException e) { 1439 Log.e(TAG, e.getMessage(), e); 1440 } 1441 } 1442 setCursorVisible(true); 1443 setSelection(editable.length()); 1444 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1445 mAlternatesPopup.dismiss(); 1446 } 1447 } 1448 1449 1450 /** 1451 * Return whether this chip contains the position passed in. 1452 */ 1453 public boolean matchesChip(RecipientChip chip, int offset) { 1454 int start = getChipStart(chip); 1455 int end = getChipEnd(chip); 1456 if (start == -1 || end == -1) { 1457 return false; 1458 } 1459 return (offset >= start && offset <= end); 1460 } 1461 1462 1463 /** 1464 * Return whether a touch event was inside the delete target of 1465 * a selected chip. It is in the delete target if: 1466 * 1) the x and y points of the event are within the 1467 * delete assset. 1468 * 2) the point tapped would have caused a cursor to appear 1469 * right after the selected chip. 1470 * @return boolean 1471 */ 1472 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1473 // Figure out the bounds of this chip and whether or not 1474 // the user clicked in the X portion. 1475 return chip.isSelected() && offset == getChipEnd(chip); 1476 } 1477 1478 /** 1479 * Remove the chip and any text associated with it from the RecipientEditTextView. 1480 */ 1481 private void removeChip(RecipientChip chip) { 1482 Spannable spannable = getSpannable(); 1483 int spanStart = spannable.getSpanStart(chip); 1484 int spanEnd = spannable.getSpanEnd(chip); 1485 Editable text = getText(); 1486 int toDelete = spanEnd; 1487 boolean wasSelected = chip == mSelectedChip; 1488 // Clear that there is a selected chip before updating any text. 1489 if (wasSelected) { 1490 mSelectedChip = null; 1491 } 1492 // Always remove trailing spaces when removing a chip. 1493 while (toDelete >= 0 && toDelete < text.length() && text.charAt(toDelete) == ' ') { 1494 toDelete++; 1495 } 1496 spannable.removeSpan(chip); 1497 text.delete(spanStart, toDelete); 1498 if (wasSelected) { 1499 clearSelectedChip(); 1500 } 1501 } 1502 1503 /** 1504 * Replace this currently selected chip with a new chip 1505 * that uses the contact data provided. 1506 */ 1507 public void replaceChip(RecipientChip chip, RecipientEntry entry) { 1508 boolean wasSelected = chip == mSelectedChip; 1509 if (wasSelected) { 1510 mSelectedChip = null; 1511 } 1512 int start = getChipStart(chip); 1513 int end = getChipEnd(chip); 1514 getSpannable().removeSpan(chip); 1515 Editable editable = getText(); 1516 CharSequence chipText = createChip(entry, false); 1517 if (start == -1 || end == -1) { 1518 Log.e(TAG, "The chip to replace does not exist but should."); 1519 editable.insert(0, chipText); 1520 } else { 1521 // There may be a space to replace with this chip's new associated 1522 // space. Check for it. 1523 int toReplace = end; 1524 while (toReplace >= 0 && toReplace < editable.length() 1525 && editable.charAt(toReplace) == ' ') { 1526 toReplace++; 1527 } 1528 editable.replace(start, toReplace, chipText); 1529 } 1530 setCursorVisible(true); 1531 if (wasSelected) { 1532 clearSelectedChip(); 1533 } 1534 } 1535 1536 /** 1537 * Handle click events for a chip. When a selected chip receives a click 1538 * event, see if that event was in the delete icon. If so, delete it. 1539 * Otherwise, unselect the chip. 1540 */ 1541 public void onClick(RecipientChip chip, int offset, float x, float y) { 1542 if (chip.isSelected()) { 1543 if (isInDelete(chip, offset, x, y)) { 1544 removeChip(chip); 1545 } else { 1546 clearSelectedChip(); 1547 } 1548 } 1549 } 1550 1551 private boolean chipsPending() { 1552 return mPendingChipsCount > 0 || (mRemovedSpans != null && mRemovedSpans.size() > 0); 1553 } 1554 1555 @Override 1556 public void removeTextChangedListener(TextWatcher watcher) { 1557 mTextWatcher = null; 1558 super.removeTextChangedListener(watcher); 1559 } 1560 1561 private class RecipientTextWatcher implements TextWatcher { 1562 @Override 1563 public void afterTextChanged(Editable s) { 1564 // If the text has been set to null or empty, make sure we remove 1565 // all the spans we applied. 1566 if (TextUtils.isEmpty(s)) { 1567 // Remove all the chips spans. 1568 Spannable spannable = getSpannable(); 1569 RecipientChip[] chips = spannable.getSpans(0, getText().length(), 1570 RecipientChip.class); 1571 for (RecipientChip chip : chips) { 1572 spannable.removeSpan(chip); 1573 } 1574 if (mMoreChip != null) { 1575 spannable.removeSpan(mMoreChip); 1576 } 1577 return; 1578 } 1579 // Get whether there are any recipients pending addition to the 1580 // view. If there are, don't do anything in the text watcher. 1581 if (chipsPending()) { 1582 return; 1583 } 1584 if (mSelectedChip != null) { 1585 setCursorVisible(true); 1586 setSelection(getText().length()); 1587 clearSelectedChip(); 1588 } 1589 int length = s.length(); 1590 // Make sure there is content there to parse and that it is 1591 // not just the commit character. 1592 if (length > 1) { 1593 char last; 1594 int end = getSelectionEnd() == 0 ? 0 : getSelectionEnd() - 1; 1595 int len = length() - 1; 1596 if (end != len) { 1597 last = s.charAt(end); 1598 } else { 1599 last = s.charAt(len); 1600 } 1601 if (last == COMMIT_CHAR_SEMICOLON || last == COMMIT_CHAR_COMMA) { 1602 commitByCharacter(); 1603 } else if (last == COMMIT_CHAR_SPACE) { 1604 // Check if this is a valid email address. If it is, 1605 // commit it. 1606 String text = getText().toString(); 1607 int tokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 1608 String sub = text.substring(tokenStart, mTokenizer.findTokenEnd(text, 1609 tokenStart)); 1610 if (mValidator != null && mValidator.isValid(sub)) { 1611 commitByCharacter(); 1612 } 1613 } 1614 } 1615 } 1616 1617 @Override 1618 public void onTextChanged(CharSequence s, int start, int before, int count) { 1619 // Do nothing. 1620 } 1621 1622 @Override 1623 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 1624 } 1625 } 1626 1627 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 1628 private RecipientChip createFreeChip(RecipientEntry entry) { 1629 String displayText = entry.getDestination(); 1630 displayText = (String) mTokenizer.terminateToken(displayText); 1631 try { 1632 return constructChipSpan(entry, -1, false); 1633 } catch (NullPointerException e) { 1634 Log.e(TAG, e.getMessage(), e); 1635 return null; 1636 } 1637 } 1638 1639 @Override 1640 protected Void doInBackground(Void... params) { 1641 if (mIndividualReplacements != null) { 1642 mIndividualReplacements.cancel(true); 1643 } 1644 // For each chip in the list, look up the matching contact. 1645 // If there is a match, replace that chip with the matching 1646 // chip. 1647 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 1648 RecipientChip[] existingChips = getSpannable().getSpans(0, getText().length(), 1649 RecipientChip.class); 1650 for (int i = 0; i < existingChips.length; i++) { 1651 originalRecipients.add(existingChips[i]); 1652 } 1653 if (mRemovedSpans != null) { 1654 originalRecipients.addAll(mRemovedSpans); 1655 } 1656 String[] addresses = new String[originalRecipients.size()]; 1657 for (int i = 0; i < originalRecipients.size(); i++) { 1658 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1659 } 1660 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1661 .getMatchingRecipients(getContext(), addresses); 1662 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 1663 for (final RecipientChip temp : originalRecipients) { 1664 RecipientEntry entry = null; 1665 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1666 && getSpannable().getSpanStart(temp) != -1) { 1667 // Replace this. 1668 entry = createValidatedEntry(entries.get(tokenizeAddress(temp.getEntry() 1669 .getDestination()))); 1670 } 1671 if (entry != null) { 1672 replacements.add(createFreeChip(entry)); 1673 } else { 1674 replacements.add(temp); 1675 } 1676 } 1677 if (replacements != null && replacements.size() > 0) { 1678 mHandler.post(new Runnable() { 1679 @Override 1680 public void run() { 1681 SpannableStringBuilder text = new SpannableStringBuilder(getText() 1682 .toString()); 1683 Editable oldText = getText(); 1684 int start, end; 1685 int i = 0; 1686 for (RecipientChip chip : originalRecipients) { 1687 start = oldText.getSpanStart(chip); 1688 if (start != -1) { 1689 end = oldText.getSpanEnd(chip); 1690 text.removeSpan(chip); 1691 // Leave a spot for the space! 1692 text.setSpan(replacements.get(i), start, end, 1693 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1694 } 1695 i++; 1696 } 1697 Editable editable = getText(); 1698 editable.clear(); 1699 editable.insert(0, text); 1700 originalRecipients.clear(); 1701 } 1702 }); 1703 } 1704 return null; 1705 } 1706 } 1707 1708 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 1709 @SuppressWarnings("unchecked") 1710 @Override 1711 protected Void doInBackground(Object... params) { 1712 // For each chip in the list, look up the matching contact. 1713 // If there is a match, replace that chip with the matching 1714 // chip. 1715 final ArrayList<RecipientChip> originalRecipients = 1716 (ArrayList<RecipientChip>) params[0]; 1717 String[] addresses = new String[originalRecipients.size()]; 1718 for (int i = 0; i < originalRecipients.size(); i++) { 1719 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1720 } 1721 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1722 .getMatchingRecipients(getContext(), addresses); 1723 for (final RecipientChip temp : originalRecipients) { 1724 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1725 && getSpannable().getSpanStart(temp) != -1) { 1726 // Replace this. 1727 final RecipientEntry entry = createValidatedEntry(entries 1728 .get(tokenizeAddress(temp.getEntry().getDestination()))); 1729 if (entry != null) { 1730 mHandler.post(new Runnable() { 1731 @Override 1732 public void run() { 1733 replaceChip(temp, entry); 1734 } 1735 }); 1736 } 1737 } 1738 } 1739 return null; 1740 } 1741 } 1742} 1743