RecipientEditTextView.java revision e1bfc9218326c02ff51985dcb22ee9b0ae385807
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.app.Dialog; 20import android.content.ClipData; 21import android.content.ClipboardManager; 22import android.content.Context; 23import android.content.DialogInterface; 24import android.content.DialogInterface.OnDismissListener; 25import android.graphics.Bitmap; 26import android.graphics.BitmapFactory; 27import android.graphics.Canvas; 28import android.graphics.Matrix; 29import android.graphics.Rect; 30import android.graphics.RectF; 31import android.graphics.drawable.BitmapDrawable; 32import android.graphics.drawable.Drawable; 33import android.os.AsyncTask; 34import android.os.Handler; 35import android.os.Message; 36import android.text.Editable; 37import android.text.InputType; 38import android.text.Layout; 39import android.text.Spannable; 40import android.text.SpannableString; 41import android.text.SpannableStringBuilder; 42import android.text.Spanned; 43import android.text.TextPaint; 44import android.text.TextUtils; 45import android.text.TextWatcher; 46import android.text.method.QwertyKeyListener; 47import android.text.style.ImageSpan; 48import android.text.util.Rfc822Token; 49import android.text.util.Rfc822Tokenizer; 50import android.util.AttributeSet; 51import android.util.Log; 52import android.view.ActionMode; 53import android.view.ActionMode.Callback; 54import android.view.GestureDetector; 55import android.view.KeyEvent; 56import android.view.LayoutInflater; 57import android.view.Menu; 58import android.view.MenuItem; 59import android.view.MotionEvent; 60import android.view.View; 61import android.view.View.OnClickListener; 62import android.view.ViewParent; 63import android.widget.AdapterView; 64import android.widget.AdapterView.OnItemClickListener; 65import android.widget.Filterable; 66import android.widget.ListAdapter; 67import android.widget.ListPopupWindow; 68import android.widget.ListView; 69import android.widget.MultiAutoCompleteTextView; 70import android.widget.ScrollView; 71import android.widget.TextView; 72 73import java.util.ArrayList; 74import java.util.Arrays; 75import java.util.Collection; 76import java.util.Collections; 77import java.util.Comparator; 78import java.util.HashMap; 79import java.util.HashSet; 80import java.util.Set; 81 82/** 83 * RecipientEditTextView is an auto complete text view for use with applications 84 * that use the new Chips UI for addressing a message to recipients. 85 */ 86public class RecipientEditTextView extends MultiAutoCompleteTextView implements 87 OnItemClickListener, Callback, RecipientAlternatesAdapter.OnCheckedItemChangedListener, 88 GestureDetector.OnGestureListener, OnDismissListener, OnClickListener { 89 90 private static final String TAG = "RecipientEditTextView"; 91 92 // TODO: get correct number/ algorithm from with UX. 93 private static final int CHIP_LIMIT = 2; 94 95 private Drawable mChipBackground = null; 96 97 private Drawable mChipDelete = null; 98 99 private int mChipPadding; 100 101 private Tokenizer mTokenizer; 102 103 private Drawable mChipBackgroundPressed; 104 105 private RecipientChip mSelectedChip; 106 107 private int mAlternatesLayout; 108 109 private Bitmap mDefaultContactPhoto; 110 111 private ImageSpan mMoreChip; 112 113 private TextView mMoreItem; 114 115 private final ArrayList<String> mPendingChips = new ArrayList<String>(); 116 117 private float mChipHeight; 118 119 private float mChipFontSize; 120 121 private Validator mValidator; 122 123 private Drawable mInvalidChipBackground; 124 125 private Handler mHandler; 126 127 private static int DISMISS = "dismiss".hashCode(); 128 129 private static final long DISMISS_DELAY = 300; 130 131 private int mPendingChipsCount = 0; 132 133 private static int sSelectedTextColor = -1; 134 135 private static final char COMMIT_CHAR_COMMA = ','; 136 137 private static final char COMMIT_CHAR_SEMICOLON = ';'; 138 139 private static final char COMMIT_CHAR_SPACE = ' '; 140 141 private ListPopupWindow mAlternatesPopup; 142 143 private ListPopupWindow mAddressPopup; 144 145 private ArrayList<RecipientChip> mTemporaryRecipients; 146 147 private ArrayList<RecipientChip> mRemovedSpans; 148 149 private boolean mShouldShrink = true; 150 151 // Chip copy fields. 152 private GestureDetector mGestureDetector; 153 154 private Dialog mCopyDialog; 155 156 private int mCopyViewRes; 157 158 private String mCopyAddress; 159 160 /** 161 * Used with {@link #mAlternatesPopup}. Handles clicks to alternate addresses for a 162 * selected chip. 163 */ 164 private OnItemClickListener mAlternatesListener; 165 166 private int mCheckedItem; 167 private TextWatcher mTextWatcher; 168 169 private ScrollView mScrollView; 170 171 private boolean mTried; 172 173 private final Runnable mAddTextWatcher = new Runnable() { 174 @Override 175 public void run() { 176 if (mTextWatcher == null) { 177 mTextWatcher = new RecipientTextWatcher(); 178 addTextChangedListener(mTextWatcher); 179 } 180 } 181 }; 182 183 private IndividualReplacementTask mIndividualReplacements; 184 185 private Runnable mHandlePendingChips = new Runnable() { 186 187 @Override 188 public void run() { 189 handlePendingChips(); 190 } 191 192 }; 193 194 public RecipientEditTextView(Context context, AttributeSet attrs) { 195 super(context, attrs); 196 if (sSelectedTextColor == -1) { 197 sSelectedTextColor = context.getResources().getColor(android.R.color.white); 198 } 199 mAlternatesPopup = new ListPopupWindow(context); 200 mAddressPopup = new ListPopupWindow(context); 201 mAlternatesListener = new OnItemClickListener() { 202 @Override 203 public void onItemClick(AdapterView<?> adapterView,View view, int position, 204 long rowId) { 205 mAlternatesPopup.setOnItemClickListener(null); 206 replaceChip(mSelectedChip, ((RecipientAlternatesAdapter) adapterView.getAdapter()) 207 .getRecipientEntry(position)); 208 Message delayed = Message.obtain(mHandler, DISMISS); 209 delayed.obj = mAlternatesPopup; 210 mHandler.sendMessageDelayed(delayed, DISMISS_DELAY); 211 clearComposingText(); 212 } 213 }; 214 setInputType(getInputType() | InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS); 215 setOnItemClickListener(this); 216 setCustomSelectionActionModeCallback(this); 217 mHandler = new Handler() { 218 @Override 219 public void handleMessage(Message msg) { 220 if (msg.what == DISMISS) { 221 ((ListPopupWindow) msg.obj).dismiss(); 222 return; 223 } 224 super.handleMessage(msg); 225 } 226 }; 227 mTextWatcher = new RecipientTextWatcher(); 228 addTextChangedListener(mTextWatcher); 229 mGestureDetector = new GestureDetector(context, this); 230 } 231 232 @Override 233 public <T extends ListAdapter & Filterable> void setAdapter(T adapter) { 234 super.setAdapter(adapter); 235 if (adapter == null) { 236 return; 237 } 238 } 239 240 @Override 241 public void onSelectionChanged(int start, int end) { 242 // When selection changes, see if it is inside the chips area. 243 // If so, move the cursor back after the chips again. 244 Spannable span = getSpannable(); 245 int textLength = getText().length(); 246 RecipientChip[] chips = span.getSpans(start, textLength, RecipientChip.class); 247 if (chips != null && chips.length > 0) { 248 if (chips != null && chips.length > 0) { 249 // Grab the last chip and set the cursor to after it. 250 setSelection(Math.min(span.getSpanEnd(chips[chips.length - 1]) + 1, textLength)); 251 } 252 } 253 super.onSelectionChanged(start, end); 254 } 255 256 /** 257 * Convenience method: Append the specified text slice to the TextView's 258 * display buffer, upgrading it to BufferType.EDITABLE if it was 259 * not already editable. Commas are excluded as they are added automatically 260 * by the view. 261 */ 262 @Override 263 public void append(CharSequence text, int start, int end) { 264 // We don't care about watching text changes while appending. 265 if (mTextWatcher != null) { 266 removeTextChangedListener(mTextWatcher); 267 } 268 super.append(text, start, end); 269 if (!TextUtils.isEmpty(text) && TextUtils.getTrimmedLength(text) > 0) { 270 final String displayString = (String) text; 271 int seperatorPos = displayString.indexOf(COMMIT_CHAR_COMMA); 272 if (seperatorPos != 0 && !TextUtils.isEmpty(displayString) 273 && TextUtils.getTrimmedLength(displayString) > 0) { 274 mPendingChipsCount++; 275 mPendingChips.add((String)text); 276 } 277 } 278 // Put a message on the queue to make sure we ALWAYS handle pending chips. 279 if (mPendingChipsCount > 0) { 280 postHandlePendingChips(); 281 } 282 mHandler.post(mAddTextWatcher); 283 } 284 285 @Override 286 public void onFocusChanged(boolean hasFocus, int direction, Rect previous) { 287 if (!hasFocus) { 288 shrink(); 289 dismissDropDown(); 290 } else { 291 expand(); 292 scrollLineIntoView(getLineCount()); 293 } 294 } 295 296 private void shrink() { 297 if (mSelectedChip != null) { 298 clearSelectedChip(); 299 } else { 300 // Reset any pending chips as they would have been handled 301 // when the field lost focus. 302 if (mPendingChipsCount > 0) { 303 postHandlePendingChips(); 304 } else { 305 Editable editable = getText(); 306 int end = getSelectionEnd(); 307 int start = mTokenizer.findTokenStart(editable, end); 308 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 309 if ((chips == null || chips.length == 0)) { 310 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 311 // In the middle of chip; treat this as an edit 312 // and commit the whole token. 313 if (whatEnd != getSelectionEnd()) { 314 handleEdit(start, whatEnd); 315 } else { 316 commitChip(start, end, editable); 317 } 318 } 319 } 320 mHandler.post(mAddTextWatcher); 321 } 322 createMoreChip(); 323 } 324 325 private void expand() { 326 removeMoreChip(); 327 setCursorVisible(true); 328 Editable text = getText(); 329 setSelection(text != null && text.length() > 0 ? text.length() : 0); 330 // If there are any temporary chips, try replacing them now that the user 331 // has expanded the field. 332 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0) { 333 new RecipientReplacementTask().execute(); 334 mTemporaryRecipients = null; 335 } 336 } 337 338 private CharSequence ellipsizeText(CharSequence text, TextPaint paint, float maxWidth) { 339 paint.setTextSize(mChipFontSize); 340 if (maxWidth <= 0 && Log.isLoggable(TAG, Log.DEBUG)) { 341 Log.d(TAG, "Max width is negative: " + maxWidth); 342 } 343 return TextUtils.ellipsize(text, paint, maxWidth, 344 TextUtils.TruncateAt.END); 345 } 346 347 private Bitmap createSelectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 348 // Ellipsize the text so that it takes AT MOST the entire width of the 349 // autocomplete text entry area. Make sure to leave space for padding 350 // on the sides. 351 int height = (int) mChipHeight; 352 int deleteWidth = height; 353 CharSequence ellipsizedText = ellipsizeText(contact.getDisplayName(), paint, 354 calculateAvailableWidth(true) - deleteWidth); 355 356 // Make sure there is a minimum chip width so the user can ALWAYS 357 // tap a chip without difficulty. 358 int width = Math.max(deleteWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 359 ellipsizedText.length())) 360 + (mChipPadding * 2) + deleteWidth); 361 362 // Create the background of the chip. 363 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 364 Canvas canvas = new Canvas(tmpBitmap); 365 if (mChipBackgroundPressed != null) { 366 mChipBackgroundPressed.setBounds(0, 0, width, height); 367 mChipBackgroundPressed.draw(canvas); 368 paint.setColor(sSelectedTextColor); 369 // Align the display text with where the user enters text. 370 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, height 371 - Math.abs(height - mChipFontSize)/2, paint); 372 // Make the delete a square. 373 mChipDelete.setBounds(width - deleteWidth, 0, width, height); 374 mChipDelete.draw(canvas); 375 } else { 376 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 377 } 378 return tmpBitmap; 379 } 380 381 382 /** 383 * Get the background drawable for a RecipientChip. 384 */ 385 public Drawable getChipBackground(RecipientEntry contact) { 386 return (mValidator != null && mValidator.isValid(contact.getDestination())) ? 387 mChipBackground : mInvalidChipBackground; 388 } 389 390 private Bitmap createUnselectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 391 // Ellipsize the text so that it takes AT MOST the entire width of the 392 // autocomplete text entry area. Make sure to leave space for padding 393 // on the sides. 394 int height = (int) mChipHeight; 395 int iconWidth = height; 396 String displayText = 397 !TextUtils.isEmpty(contact.getDisplayName()) ? contact.getDisplayName() : 398 !TextUtils.isEmpty(contact.getDestination()) ? contact.getDestination() : ""; 399 CharSequence ellipsizedText = ellipsizeText(displayText, paint, 400 calculateAvailableWidth(false) - iconWidth); 401 // Make sure there is a minimum chip width so the user can ALWAYS 402 // tap a chip without difficulty. 403 int width = Math.max(iconWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 404 ellipsizedText.length())) 405 + (mChipPadding * 2) + iconWidth); 406 407 // Create the background of the chip. 408 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 409 Canvas canvas = new Canvas(tmpBitmap); 410 Drawable background = getChipBackground(contact); 411 if (background != null) { 412 background.setBounds(0, 0, width, height); 413 background.draw(canvas); 414 415 // Don't draw photos for recipients that have been typed in. 416 if (contact.getContactId() != RecipientEntry.INVALID_CONTACT) { 417 byte[] photoBytes = contact.getPhotoBytes(); 418 // There may not be a photo yet if anything but the first contact address 419 // was selected. 420 if (photoBytes == null && contact.getPhotoThumbnailUri() != null) { 421 // TODO: cache this in the recipient entry? 422 ((BaseRecipientAdapter) getAdapter()).fetchPhoto(contact, contact 423 .getPhotoThumbnailUri()); 424 photoBytes = contact.getPhotoBytes(); 425 } 426 427 Bitmap photo; 428 if (photoBytes != null) { 429 photo = BitmapFactory.decodeByteArray(photoBytes, 0, photoBytes.length); 430 } else { 431 // TODO: can the scaled down default photo be cached? 432 photo = mDefaultContactPhoto; 433 } 434 // Draw the photo on the left side. 435 Matrix matrix = new Matrix(); 436 RectF src = new RectF(0, 0, photo.getWidth(), photo.getHeight()); 437 RectF dst = new RectF(width - iconWidth, 0, width, height); 438 matrix.setRectToRect(src, dst, Matrix.ScaleToFit.CENTER); 439 canvas.drawBitmap(photo, matrix, paint); 440 } else { 441 // Don't leave any space for the icon. It isn't being drawn. 442 iconWidth = 0; 443 } 444 445 // Align the display text with where the user enters text. 446 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 447 height - Math.abs(height - mChipFontSize) / 2, paint); 448 } else { 449 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 450 } 451 return tmpBitmap; 452 } 453 454 public RecipientChip constructChipSpan(RecipientEntry contact, int offset, boolean pressed) 455 throws NullPointerException { 456 if (mChipBackground == null) { 457 throw new NullPointerException( 458 "Unable to render any chips as setChipDimensions was not called."); 459 } 460 Layout layout = getLayout(); 461 462 TextPaint paint = getPaint(); 463 float defaultSize = paint.getTextSize(); 464 int defaultColor = paint.getColor(); 465 466 Bitmap tmpBitmap; 467 if (pressed) { 468 tmpBitmap = createSelectedChip(contact, paint, layout); 469 470 } else { 471 tmpBitmap = createUnselectedChip(contact, paint, layout); 472 } 473 474 // Pass the full text, un-ellipsized, to the chip. 475 Drawable result = new BitmapDrawable(getResources(), tmpBitmap); 476 result.setBounds(0, 0, tmpBitmap.getWidth(), tmpBitmap.getHeight()); 477 RecipientChip recipientChip = new RecipientChip(result, contact, offset); 478 // Return text to the original size. 479 paint.setTextSize(defaultSize); 480 paint.setColor(defaultColor); 481 return recipientChip; 482 } 483 484 /** 485 * Calculate the bottom of the line the chip will be located on using: 486 * 1) which line the chip appears on 487 * 2) the height of a chip 488 * 3) padding built into the edit text view 489 */ 490 private int calculateOffsetFromBottom(int line) { 491 // Line offsets start at zero. 492 int actualLine = getLineCount() - (line + 1); 493 return -((actualLine * ((int)mChipHeight) + getPaddingBottom()) + getPaddingTop()); 494 } 495 496 /** 497 * Get the max amount of space a chip can take up. The formula takes into 498 * account the width of the EditTextView, any view padding, and padding 499 * that will be added to the chip. 500 */ 501 private float calculateAvailableWidth(boolean pressed) { 502 return getWidth() - getPaddingLeft() - getPaddingRight() - (mChipPadding * 2); 503 } 504 505 /** 506 * Set all chip dimensions and resources. This has to be done from the 507 * application as this is a static library. 508 * @param chipBackground 509 * @param chipBackgroundPressed 510 * @param invalidChip 511 * @param chipDelete 512 * @param defaultContact 513 * @param moreResource 514 * @param alternatesLayout 515 * @param chipHeight 516 * @param padding Padding around the text in a chip 517 * @param chipFontSize 518 * @param copyViewRes 519 */ 520 public void setChipDimensions(Drawable chipBackground, Drawable chipBackgroundPressed, 521 Drawable invalidChip, Drawable chipDelete, Bitmap defaultContact, int moreResource, 522 int alternatesLayout, float chipHeight, float padding, 523 float chipFontSize, int copyViewRes) { 524 mChipBackground = chipBackground; 525 mChipBackgroundPressed = chipBackgroundPressed; 526 mChipDelete = chipDelete; 527 mChipPadding = (int) padding; 528 mAlternatesLayout = alternatesLayout; 529 mDefaultContactPhoto = defaultContact; 530 mMoreItem = (TextView) LayoutInflater.from(getContext()).inflate(moreResource, null); 531 mChipHeight = chipHeight; 532 mChipFontSize = chipFontSize; 533 mInvalidChipBackground = invalidChip; 534 mCopyViewRes = copyViewRes; 535 } 536 537 /** 538 * Set whether to shrink the recipients field such that at most 539 * one line of recipients chips are shown when the field loses 540 * focus. By default, the number of displayed recipients will be 541 * limited and a "more" chip will be shown when focus is lost. 542 * @param shrink 543 */ 544 public void setOnFocusListShrinkRecipients(boolean shrink) { 545 mShouldShrink = shrink; 546 } 547 548 @Override 549 public void onSizeChanged(int width, int height, int oldw, int oldh) { 550 super.onSizeChanged(width, height, oldw, oldh); 551 if (width != 0 && height != 0 && mPendingChipsCount > 0) { 552 postHandlePendingChips(); 553 } 554 // Try to find the scroll view parent, if it exists. 555 if (mScrollView == null && !mTried) { 556 ViewParent parent = getParent(); 557 while (parent != null && !(parent instanceof ScrollView)) { 558 parent = parent.getParent(); 559 } 560 if (parent != null) { 561 mScrollView = (ScrollView) parent; 562 } 563 mTried = true; 564 } 565 } 566 567 private void postHandlePendingChips() { 568 mHandler.removeCallbacks(mHandlePendingChips); 569 mHandler.post(mHandlePendingChips); 570 } 571 572 private void handlePendingChips() { 573 if (mPendingChipsCount <= 0) { 574 return; 575 } 576 if (getWidth() <= 0) { 577 // The widget has not been sized yet. 578 // This will be called as a result of onSizeChanged 579 // at a later point. 580 return; 581 } 582 synchronized (mPendingChips) { 583 mTemporaryRecipients = new ArrayList<RecipientChip>(mPendingChipsCount); 584 Editable editable = getText(); 585 // Tokenize! 586 for (int i = 0; i < mPendingChips.size(); i++) { 587 String current = mPendingChips.get(i); 588 int tokenStart = editable.toString().indexOf(current); 589 int tokenEnd = tokenStart + current.length(); 590 if (tokenStart >= 0) { 591 // When we have a valid token, include it with the token 592 // to the left. 593 if (tokenEnd < editable.length() - 2 594 && editable.charAt(tokenEnd) == COMMIT_CHAR_COMMA) { 595 tokenEnd++; 596 } 597 createReplacementChip(tokenStart, tokenEnd, editable); 598 } 599 mPendingChipsCount--; 600 } 601 sanitizeSpannable(); 602 if (mTemporaryRecipients != null 603 && mTemporaryRecipients.size() <= RecipientAlternatesAdapter.MAX_LOOKUPS) { 604 if (hasFocus() || mTemporaryRecipients.size() < CHIP_LIMIT) { 605 new RecipientReplacementTask().execute(); 606 mTemporaryRecipients = null; 607 } else { 608 // Create the "more" chip 609 mIndividualReplacements = new IndividualReplacementTask(); 610 mIndividualReplacements.execute(new ArrayList<RecipientChip>( 611 mTemporaryRecipients.subList(0, CHIP_LIMIT))); 612 613 createMoreChip(); 614 } 615 } else { 616 // There are too many recipients to look up, so just fall back 617 // to 618 // showing addresses for all of them. 619 mTemporaryRecipients = null; 620 createMoreChip(); 621 } 622 mPendingChipsCount = 0; 623 mPendingChips.clear(); 624 } 625 } 626 627 /** 628 * Remove any characters after the last valid chip. 629 */ 630 private void sanitizeSpannable() { 631 // Find the last chip; eliminate any commit characters after it. 632 RecipientChip[] chips = getRecipients(); 633 if (chips != null && chips.length > 0) { 634 int end; 635 ImageSpan lastSpan; 636 if (mMoreChip != null) { 637 lastSpan = mMoreChip; 638 } else { 639 lastSpan = chips[chips.length - 1]; 640 } 641 end = getSpannable().getSpanEnd(lastSpan); 642 Editable editable = getText(); 643 int length = editable.length(); 644 if (length > end) { 645 // See what characters occur after that and eliminate them. 646 if (Log.isLoggable(TAG, Log.DEBUG)) { 647 Log.d(TAG, "There were extra characters after the last tokenizable entry." 648 + editable); 649 } 650 editable.delete(end + 1, length); 651 } 652 } 653 } 654 655 /** 656 * Create a chip that represents just the email address of a recipient. At some later 657 * point, this chip will be attached to a real contact entry, if one exists. 658 */ 659 private void createReplacementChip(int tokenStart, int tokenEnd, Editable editable) { 660 if (alreadyHasChip(tokenStart, tokenEnd)) { 661 // There is already a chip present at this location. 662 // Don't recreate it. 663 return; 664 } 665 String token = editable.toString().substring(tokenStart, tokenEnd); 666 int commitCharIndex = token.trim().lastIndexOf(COMMIT_CHAR_COMMA); 667 if (commitCharIndex == token.length() - 1) { 668 token = token.substring(0, token.length() - 1); 669 } 670 RecipientEntry entry = createTokenizedEntry(token); 671 if (entry != null) { 672 String destText = entry.getDestination(); 673 destText = (String) mTokenizer.terminateToken(destText); 674 // Always leave a blank space at the end of a chip. 675 int textLength = destText.length() - 1; 676 SpannableString chipText = new SpannableString(destText); 677 int end = getSelectionEnd(); 678 int start = mTokenizer.findTokenStart(getText(), end); 679 RecipientChip chip = null; 680 try { 681 chip = constructChipSpan(entry, start, false); 682 chipText.setSpan(chip, 0, textLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 683 } catch (NullPointerException e) { 684 Log.e(TAG, e.getMessage(), e); 685 } 686 687 editable.replace(tokenStart, tokenEnd, chipText); 688 // Add this chip to the list of entries "to replace" 689 if (chip != null) { 690 chip.setOriginalText(chipText.toString()); 691 mTemporaryRecipients.add(chip); 692 } 693 } 694 } 695 696 private RecipientEntry createTokenizedEntry(String token) { 697 if (TextUtils.isEmpty(token)) { 698 return null; 699 } 700 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(token); 701 String display = null; 702 if (isValid(token) && tokens != null && tokens.length > 0) { 703 // If we can get a name from tokenizing, then generate an entry from 704 // this. 705 display = tokens[0].getName(); 706 if (!TextUtils.isEmpty(display)) { 707 return RecipientEntry.constructGeneratedEntry(display, token); 708 } else { 709 display = tokens[0].getAddress(); 710 if (!TextUtils.isEmpty(display)) { 711 return RecipientEntry.constructFakeEntry(display); 712 } 713 } 714 } 715 // Unable to validate the token or to create a valid token from it. 716 // Just create a chip the user can edit. 717 if (mValidator != null && !mValidator.isValid(token)) { 718 // Try fixing up the entry using the validator. 719 token = mValidator.fixText(token).toString(); 720 if (!TextUtils.isEmpty(token)) { 721 // protect against the case of a validator with a null domain, 722 // which doesn't add a domain to the token 723 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(token); 724 if (tokenized.length > 0) { 725 token = tokenized[0].getAddress(); 726 } 727 } 728 } 729 // Otherwise, fallback to just creating an editable email address chip. 730 return RecipientEntry.constructFakeEntry(token); 731 } 732 733 private boolean isValid(String text) { 734 return mValidator == null ? true : mValidator.isValid(text); 735 } 736 737 private String tokenizeAddress(String destination) { 738 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(destination); 739 if (tokens != null && tokens.length > 0) { 740 return tokens[0].getAddress(); 741 } 742 return destination; 743 } 744 745 @Override 746 public void setTokenizer(Tokenizer tokenizer) { 747 mTokenizer = tokenizer; 748 super.setTokenizer(mTokenizer); 749 } 750 751 @Override 752 public void setValidator(Validator validator) { 753 mValidator = validator; 754 super.setValidator(validator); 755 } 756 757 /** 758 * We cannot use the default mechanism for replaceText. Instead, 759 * we override onItemClickListener so we can get all the associated 760 * contact information including display text, address, and id. 761 */ 762 @Override 763 protected void replaceText(CharSequence text) { 764 return; 765 } 766 767 /** 768 * Dismiss any selected chips when the back key is pressed. 769 */ 770 @Override 771 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 772 if (keyCode == KeyEvent.KEYCODE_BACK) { 773 clearSelectedChip(); 774 } 775 return super.onKeyPreIme(keyCode, event); 776 } 777 778 /** 779 * Monitor key presses in this view to see if the user types 780 * any commit keys, which consist of ENTER, TAB, or DPAD_CENTER. 781 * If the user has entered text that has contact matches and types 782 * a commit key, create a chip from the topmost matching contact. 783 * If the user has entered text that has no contact matches and types 784 * a commit key, then create a chip from the text they have entered. 785 */ 786 @Override 787 public boolean onKeyUp(int keyCode, KeyEvent event) { 788 switch (keyCode) { 789 case KeyEvent.KEYCODE_ENTER: 790 case KeyEvent.KEYCODE_DPAD_CENTER: 791 if (event.hasNoModifiers()) { 792 if (commitDefault()) { 793 return true; 794 } 795 if (mSelectedChip != null) { 796 clearSelectedChip(); 797 return true; 798 } else if (focusNext()) { 799 return true; 800 } 801 } 802 break; 803 case KeyEvent.KEYCODE_TAB: 804 if (event.hasNoModifiers()) { 805 if (mSelectedChip != null) { 806 clearSelectedChip(); 807 } else { 808 commitDefault(); 809 } 810 if (focusNext()) { 811 return true; 812 } 813 } 814 } 815 return super.onKeyUp(keyCode, event); 816 } 817 818 private boolean focusNext() { 819 View next = focusSearch(View.FOCUS_DOWN); 820 if (next != null) { 821 next.requestFocus(); 822 return true; 823 } 824 return false; 825 } 826 827 /** 828 * Create a chip from the default selection. If the popup is showing, the 829 * default is the first item in the popup suggestions list. Otherwise, it is 830 * whatever the user had typed in. End represents where the the tokenizer 831 * should search for a token to turn into a chip. 832 * @return If a chip was created from a real contact. 833 */ 834 private boolean commitDefault() { 835 Editable editable = getText(); 836 int end = getSelectionEnd(); 837 int start = mTokenizer.findTokenStart(editable, end); 838 839 if (shouldCreateChip(start, end)) { 840 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 841 // In the middle of chip; treat this as an edit 842 // and commit the whole token. 843 if (whatEnd != getSelectionEnd()) { 844 handleEdit(start, whatEnd); 845 return true; 846 } 847 return commitChip(start, end , editable); 848 } 849 return false; 850 } 851 852 private void commitByCharacter() { 853 Editable editable = getText(); 854 int end = getSelectionEnd(); 855 int start = mTokenizer.findTokenStart(editable, end); 856 if (shouldCreateChip(start, end)) { 857 commitChip(start, end, editable); 858 } 859 setSelection(getText().length()); 860 } 861 862 private boolean commitChip(int start, int end, Editable editable) { 863 if (getAdapter().getCount() > 0 && enoughToFilter()) { 864 // choose the first entry. 865 submitItemAtPosition(0); 866 dismissDropDown(); 867 return true; 868 } else { 869 int tokenEnd = mTokenizer.findTokenEnd(editable, start); 870 String text = editable.toString().substring(start, tokenEnd).trim(); 871 clearComposingText(); 872 if (text != null && text.length() > 0 && !text.equals(" ")) { 873 RecipientEntry entry = createTokenizedEntry(text); 874 if (entry != null) { 875 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 876 CharSequence chipText = createChip(entry, false); 877 editable.replace(start, end, chipText); 878 } 879 dismissDropDown(); 880 return true; 881 } 882 } 883 return false; 884 } 885 886 private boolean shouldCreateChip(int start, int end) { 887 return hasFocus() && enoughToFilter() && !alreadyHasChip(start, end); 888 } 889 890 private boolean alreadyHasChip(int start, int end) { 891 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 892 if ((chips == null || chips.length == 0)) { 893 return false; 894 } 895 return true; 896 } 897 898 private void handleEdit(int start, int end) { 899 // This is in the middle of a chip, so select out the whole chip 900 // and commit it. 901 Editable editable = getText(); 902 setSelection(end); 903 String text = getText().toString().substring(start, end); 904 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 905 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 906 CharSequence chipText = createChip(entry, false); 907 editable.replace(start, getSelectionEnd(), chipText); 908 dismissDropDown(); 909 } 910 911 /** 912 * If there is a selected chip, delegate the key events 913 * to the selected chip. 914 */ 915 @Override 916 public boolean onKeyDown(int keyCode, KeyEvent event) { 917 if (mSelectedChip != null && keyCode == KeyEvent.KEYCODE_DEL) { 918 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 919 mAlternatesPopup.dismiss(); 920 } 921 removeChip(mSelectedChip); 922 } 923 924 if (keyCode == KeyEvent.KEYCODE_ENTER && event.hasNoModifiers()) { 925 return true; 926 } 927 928 return super.onKeyDown(keyCode, event); 929 } 930 931 private Spannable getSpannable() { 932 return getText(); 933 } 934 935 private int getChipStart(RecipientChip chip) { 936 return getSpannable().getSpanStart(chip); 937 } 938 939 private int getChipEnd(RecipientChip chip) { 940 return getSpannable().getSpanEnd(chip); 941 } 942 943 /** 944 * Instead of filtering on the entire contents of the edit box, 945 * this subclass method filters on the range from 946 * {@link Tokenizer#findTokenStart} to {@link #getSelectionEnd} 947 * if the length of that range meets or exceeds {@link #getThreshold} 948 * and makes sure that the range is not already a Chip. 949 */ 950 @Override 951 protected void performFiltering(CharSequence text, int keyCode) { 952 if (enoughToFilter()) { 953 int end = getSelectionEnd(); 954 int start = mTokenizer.findTokenStart(text, end); 955 // If this is a RecipientChip, don't filter 956 // on its contents. 957 Spannable span = getSpannable(); 958 RecipientChip[] chips = span.getSpans(start, end, RecipientChip.class); 959 if (chips != null && chips.length > 0) { 960 return; 961 } 962 } 963 super.performFiltering(text, keyCode); 964 } 965 966 private void clearSelectedChip() { 967 if (mSelectedChip != null) { 968 unselectChip(mSelectedChip); 969 mSelectedChip = null; 970 } 971 setCursorVisible(true); 972 } 973 974 /** 975 * Monitor touch events in the RecipientEditTextView. 976 * If the view does not have focus, any tap on the view 977 * will just focus the view. If the view has focus, determine 978 * if the touch target is a recipient chip. If it is and the chip 979 * is not selected, select it and clear any other selected chips. 980 * If it isn't, then select that chip. 981 */ 982 @Override 983 public boolean onTouchEvent(MotionEvent event) { 984 if (!isFocused()) { 985 // Ignore any chip taps until this view is focused. 986 return super.onTouchEvent(event); 987 } 988 989 boolean handled = super.onTouchEvent(event); 990 int action = event.getAction(); 991 boolean chipWasSelected = false; 992 if (action == MotionEvent.ACTION_DOWN && mSelectedChip == null) { 993 mGestureDetector.onTouchEvent(event); 994 } 995 if (mCopyDialog == null && action == MotionEvent.ACTION_UP) { 996 float x = event.getX(); 997 float y = event.getY(); 998 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 999 RecipientChip currentChip = findChip(offset); 1000 if (currentChip != null) { 1001 if (action == MotionEvent.ACTION_UP) { 1002 if (mSelectedChip != null && mSelectedChip != currentChip) { 1003 clearSelectedChip(); 1004 mSelectedChip = selectChip(currentChip); 1005 } else if (mSelectedChip == null) { 1006 // Selection may have moved due to the tap event, 1007 // but make sure we correctly reset selection to the 1008 // end so that any unfinished chips are committed. 1009 setSelection(getText().length()); 1010 commitDefault(); 1011 mSelectedChip = selectChip(currentChip); 1012 } else { 1013 onClick(mSelectedChip, offset, x, y); 1014 } 1015 } 1016 chipWasSelected = true; 1017 handled = true; 1018 } 1019 } 1020 if (action == MotionEvent.ACTION_UP && !chipWasSelected) { 1021 clearSelectedChip(); 1022 } 1023 return handled; 1024 } 1025 1026 private void scrollLineIntoView(int line) { 1027 if (mScrollView != null) { 1028 mScrollView.scrollBy(0, calculateOffsetFromBottom(line)); 1029 } 1030 } 1031 1032 private void showAlternates(RecipientChip currentChip, ListPopupWindow alternatesPopup, 1033 int width, Context context) { 1034 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1035 int bottom = calculateOffsetFromBottom(line); 1036 // Align the alternates popup with the left side of the View, 1037 // regardless of the position of the chip tapped. 1038 alternatesPopup.setWidth(width); 1039 alternatesPopup.setAnchorView(this); 1040 alternatesPopup.setVerticalOffset(bottom); 1041 alternatesPopup.setAdapter(createAlternatesAdapter(currentChip)); 1042 alternatesPopup.setOnItemClickListener(mAlternatesListener); 1043 alternatesPopup.show(); 1044 ListView listView = alternatesPopup.getListView(); 1045 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1046 // Checked item would be -1 if the adapter has not 1047 // loaded the view that should be checked yet. The 1048 // variable will be set correctly when onCheckedItemChanged 1049 // is called in a separate thread. 1050 if (mCheckedItem != -1) { 1051 listView.setItemChecked(mCheckedItem, true); 1052 mCheckedItem = -1; 1053 } 1054 } 1055 1056 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 1057 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 1058 mAlternatesLayout, this); 1059 } 1060 1061 private ListAdapter createSingleAddressAdapter(RecipientChip currentChip) { 1062 return new SingleRecipientArrayAdapter(getContext(), mAlternatesLayout, currentChip 1063 .getEntry()); 1064 } 1065 1066 @Override 1067 public void onCheckedItemChanged(int position) { 1068 ListView listView = mAlternatesPopup.getListView(); 1069 if (listView != null && listView.getCheckedItemCount() == 0) { 1070 listView.setItemChecked(position, true); 1071 } else { 1072 mCheckedItem = position; 1073 } 1074 } 1075 1076 // TODO: This algorithm will need a lot of tweaking after more people have used 1077 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 1078 // what comes before the finger. 1079 private int putOffsetInRange(int o) { 1080 int offset = o; 1081 Editable text = getText(); 1082 int length = text.length(); 1083 // Remove whitespace from end to find "real end" 1084 int realLength = length; 1085 for (int i = length - 1; i >= 0; i--) { 1086 if (text.charAt(i) == ' ') { 1087 realLength--; 1088 } else { 1089 break; 1090 } 1091 } 1092 1093 // If the offset is beyond or at the end of the text, 1094 // leave it alone. 1095 if (offset >= realLength) { 1096 return offset; 1097 } 1098 Editable editable = getText(); 1099 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 1100 // Keep walking backward! 1101 offset--; 1102 } 1103 return offset; 1104 } 1105 1106 private int findText(Editable text, int offset) { 1107 if (text.charAt(offset) != ' ') { 1108 return offset; 1109 } 1110 return -1; 1111 } 1112 1113 private RecipientChip findChip(int offset) { 1114 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1115 // Find the chip that contains this offset. 1116 for (int i = 0; i < chips.length; i++) { 1117 RecipientChip chip = chips[i]; 1118 int start = getChipStart(chip); 1119 int end = getChipEnd(chip); 1120 if (offset >= start && offset <= end) { 1121 return chip; 1122 } 1123 } 1124 return null; 1125 } 1126 1127 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 1128 String displayText = entry.getDestination(); 1129 displayText = (String) mTokenizer.terminateToken(displayText); 1130 // Always leave a blank space at the end of a chip. 1131 int textLength = displayText.length()-1; 1132 SpannableString chipText = new SpannableString(displayText); 1133 int end = getSelectionEnd(); 1134 int start = mTokenizer.findTokenStart(getText(), end); 1135 try { 1136 RecipientChip chip = constructChipSpan(entry, start, pressed); 1137 chipText.setSpan(chip, 0, textLength, 1138 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1139 chip.setOriginalText(chipText.toString()); 1140 } catch (NullPointerException e) { 1141 Log.e(TAG, e.getMessage(), e); 1142 return null; 1143 } 1144 1145 return chipText; 1146 } 1147 1148 /** 1149 * When an item in the suggestions list has been clicked, create a chip from the 1150 * contact information of the selected item. 1151 */ 1152 @Override 1153 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1154 submitItemAtPosition(position); 1155 } 1156 1157 private void submitItemAtPosition(int position) { 1158 RecipientEntry entry = createValidatedEntry( 1159 (RecipientEntry)getAdapter().getItem(position)); 1160 if (entry == null) { 1161 return; 1162 } 1163 clearComposingText(); 1164 1165 int end = getSelectionEnd(); 1166 int start = mTokenizer.findTokenStart(getText(), end); 1167 1168 Editable editable = getText(); 1169 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1170 CharSequence chip = createChip(entry, false); 1171 if (chip != null) { 1172 editable.replace(start, end, chip); 1173 } 1174 } 1175 1176 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1177 if (item == null) { 1178 return null; 1179 } 1180 final RecipientEntry entry; 1181 // If the display name and the address are the same, or if this is a 1182 // valid contact, but the destination is invalid, then make this a fake 1183 // recipient that is editable. 1184 String destination = item.getDestination(); 1185 if (TextUtils.isEmpty(item.getDisplayName()) 1186 || TextUtils.equals(item.getDisplayName(), destination) 1187 || (mValidator != null && !mValidator.isValid(destination))) { 1188 entry = RecipientEntry.constructFakeEntry(destination); 1189 } else { 1190 entry = item; 1191 } 1192 return entry; 1193 } 1194 1195 /** Returns a collection of contact Id for each chip inside this View. */ 1196 /* package */ Collection<Long> getContactIds() { 1197 final Set<Long> result = new HashSet<Long>(); 1198 RecipientChip[] chips = getRecipients(); 1199 if (chips != null) { 1200 for (RecipientChip chip : chips) { 1201 result.add(chip.getContactId()); 1202 } 1203 } 1204 return result; 1205 } 1206 1207 private RecipientChip[] getRecipients() { 1208 return getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1209 } 1210 1211 private RecipientChip[] getSortedRecipients() { 1212 ArrayList<RecipientChip> recipientsList = new ArrayList<RecipientChip>(Arrays 1213 .asList(getRecipients())); 1214 final Spannable spannable = getSpannable(); 1215 Collections.sort(recipientsList, new Comparator<RecipientChip>() { 1216 1217 @Override 1218 public int compare(RecipientChip first, RecipientChip second) { 1219 int firstStart = spannable.getSpanStart(first); 1220 int secondStart = spannable.getSpanStart(second); 1221 if (firstStart < secondStart) { 1222 return -1; 1223 } else if (firstStart > secondStart) { 1224 return 1; 1225 } else { 1226 return 0; 1227 } 1228 } 1229 }); 1230 return recipientsList.toArray(new RecipientChip[recipientsList.size()]); 1231 } 1232 1233 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1234 /* package */ Collection<Long> getDataIds() { 1235 final Set<Long> result = new HashSet<Long>(); 1236 RecipientChip [] chips = getRecipients(); 1237 if (chips != null) { 1238 for (RecipientChip chip : chips) { 1239 result.add(chip.getDataId()); 1240 } 1241 } 1242 return result; 1243 } 1244 1245 1246 @Override 1247 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1248 return false; 1249 } 1250 1251 @Override 1252 public void onDestroyActionMode(ActionMode mode) { 1253 } 1254 1255 @Override 1256 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1257 return false; 1258 } 1259 1260 /** 1261 * No chips are selectable. 1262 */ 1263 @Override 1264 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1265 return false; 1266 } 1267 1268 /** 1269 * Create the more chip. The more chip is text that replaces any chips that 1270 * do not fit in the pre-defined available space when the 1271 * RecipientEditTextView loses focus. 1272 */ 1273 private void createMoreChip() { 1274 if (!mShouldShrink) { 1275 return; 1276 } 1277 1278 ImageSpan[] tempMore = getSpannable().getSpans(0, getText().length(), MoreImageSpan.class); 1279 if (tempMore.length > 0) { 1280 getSpannable().removeSpan(tempMore[0]); 1281 } 1282 RecipientChip[] recipients = getSortedRecipients(); 1283 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1284 mMoreChip = null; 1285 return; 1286 } 1287 Spannable spannable = getSpannable(); 1288 int numRecipients = recipients.length; 1289 int overage = numRecipients - CHIP_LIMIT; 1290 String moreText = String.format(mMoreItem.getText().toString(), overage); 1291 TextPaint morePaint = new TextPaint(getPaint()); 1292 morePaint.setTextSize(mMoreItem.getTextSize()); 1293 morePaint.setColor(mMoreItem.getCurrentTextColor()); 1294 int width = (int)morePaint.measureText(moreText) + mMoreItem.getPaddingLeft() 1295 + mMoreItem.getPaddingRight(); 1296 int height = getLineHeight(); 1297 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1298 Canvas canvas = new Canvas(drawable); 1299 canvas.drawText(moreText, 0, moreText.length(), 0, height - getLayout().getLineDescent(0), 1300 morePaint); 1301 1302 Drawable result = new BitmapDrawable(getResources(), drawable); 1303 result.setBounds(0, 0, width, height); 1304 MoreImageSpan moreSpan = new MoreImageSpan(result); 1305 // Remove the overage chips. 1306 if (recipients == null || recipients.length == 0) { 1307 Log.w(TAG, 1308 "We have recipients. Tt should not be possible to have zero RecipientChips."); 1309 mMoreChip = null; 1310 return; 1311 } 1312 mRemovedSpans = new ArrayList<RecipientChip>(); 1313 int totalReplaceStart = 0; 1314 int totalReplaceEnd = 0; 1315 Editable text = getText(); 1316 for (int i = numRecipients - overage; i < recipients.length; i++) { 1317 mRemovedSpans.add(recipients[i]); 1318 if (i == numRecipients - overage) { 1319 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1320 } 1321 if (i == recipients.length - 1) { 1322 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1323 } 1324 if (mTemporaryRecipients == null || !mTemporaryRecipients.contains(recipients[i])) { 1325 int spanStart = spannable.getSpanStart(recipients[i]); 1326 int spanEnd = spannable.getSpanEnd(recipients[i]); 1327 recipients[i].setOriginalText(text.toString().substring(spanStart, spanEnd)); 1328 } 1329 spannable.removeSpan(recipients[i]); 1330 } 1331 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1332 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1333 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1334 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1335 text.replace(start, end, chipText); 1336 mMoreChip = moreSpan; 1337 } 1338 1339 /** 1340 * Replace the more chip, if it exists, with all of the recipient chips it had 1341 * replaced when the RecipientEditTextView gains focus. 1342 */ 1343 private void removeMoreChip() { 1344 if (mMoreChip != null) { 1345 Spannable span = getSpannable(); 1346 span.removeSpan(mMoreChip); 1347 mMoreChip = null; 1348 // Re-add the spans that were removed. 1349 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1350 // Recreate each removed span. 1351 Editable editable = getText(); 1352 for (RecipientChip chip : mRemovedSpans) { 1353 int chipStart; 1354 int chipEnd; 1355 String token; 1356 // Need to find the location of the chip, again. 1357 token = (String) chip.getOriginalText(); 1358 chipStart = editable.toString().indexOf(token); 1359 // -1 for the space! 1360 chipEnd = Math.min(editable.length(), chipStart + token.length()); 1361 // Only set the span if we found a matching token. 1362 if (chipStart != -1) { 1363 editable.setSpan(chip, chipStart, chipEnd, 1364 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1365 } 1366 } 1367 mRemovedSpans.clear(); 1368 } 1369 } 1370 } 1371 1372 /** 1373 * Show specified chip as selected. If the RecipientChip is just an email address, 1374 * selecting the chip will take the contents of the chip and place it at 1375 * the end of the RecipientEditTextView for inline editing. If the 1376 * RecipientChip is a complete contact, then selecting the chip 1377 * will change the background color of the chip, show the delete icon, 1378 * and a popup window with the address in use highlighted and any other 1379 * alternate addresses for the contact. 1380 * @param currentChip Chip to select. 1381 * @return A RecipientChip in the selected state or null if the chip 1382 * just contained an email address. 1383 */ 1384 public RecipientChip selectChip(RecipientChip currentChip) { 1385 if (currentChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1386 CharSequence text = currentChip.getValue(); 1387 Editable editable = getText(); 1388 removeChip(currentChip); 1389 editable.append(text); 1390 setCursorVisible(true); 1391 setSelection(editable.length()); 1392 return null; 1393 } else if (currentChip.getContactId() == RecipientEntry.GENERATED_CONTACT) { 1394 int start = getChipStart(currentChip); 1395 int end = getChipEnd(currentChip); 1396 getSpannable().removeSpan(currentChip); 1397 RecipientChip newChip; 1398 try { 1399 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1400 } catch (NullPointerException e) { 1401 Log.e(TAG, e.getMessage(), e); 1402 return null; 1403 } 1404 Editable editable = getText(); 1405 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1406 if (start == -1 || end == -1) { 1407 Log.d(TAG, "The chip being selected no longer exists but should."); 1408 } else { 1409 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1410 } 1411 newChip.setSelected(true); 1412 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1413 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1414 } 1415 showAddress(newChip, mAddressPopup, getWidth(), getContext()); 1416 setCursorVisible(false); 1417 return newChip; 1418 } else { 1419 int start = getChipStart(currentChip); 1420 int end = getChipEnd(currentChip); 1421 getSpannable().removeSpan(currentChip); 1422 RecipientChip newChip; 1423 try { 1424 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1425 } catch (NullPointerException e) { 1426 Log.e(TAG, e.getMessage(), e); 1427 return null; 1428 } 1429 Editable editable = getText(); 1430 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1431 if (start == -1 || end == -1) { 1432 Log.d(TAG, "The chip being selected no longer exists but should."); 1433 } else { 1434 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1435 } 1436 newChip.setSelected(true); 1437 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1438 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1439 } 1440 showAlternates(newChip, mAlternatesPopup, getWidth(), getContext()); 1441 setCursorVisible(false); 1442 return newChip; 1443 } 1444 } 1445 1446 1447 private void showAddress(final RecipientChip currentChip, final ListPopupWindow popup, 1448 int width, Context context) { 1449 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1450 int bottom = calculateOffsetFromBottom(line); 1451 // Align the alternates popup with the left side of the View, 1452 // regardless of the position of the chip tapped. 1453 popup.setWidth(width); 1454 popup.setAnchorView(this); 1455 popup.setVerticalOffset(bottom); 1456 popup.setAdapter(createSingleAddressAdapter(currentChip)); 1457 popup.setOnItemClickListener(new OnItemClickListener() { 1458 @Override 1459 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1460 unselectChip(currentChip); 1461 popup.dismiss(); 1462 } 1463 }); 1464 popup.show(); 1465 ListView listView = popup.getListView(); 1466 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1467 listView.setItemChecked(0, true); 1468 } 1469 1470 /** 1471 * Remove selection from this chip. Unselecting a RecipientChip will render 1472 * the chip without a delete icon and with an unfocused background. This 1473 * is called when the RecipientChip no longer has focus. 1474 */ 1475 public void unselectChip(RecipientChip chip) { 1476 int start = getChipStart(chip); 1477 int end = getChipEnd(chip); 1478 Editable editable = getText(); 1479 mSelectedChip = null; 1480 if (start == -1 || end == -1) { 1481 Log.e(TAG, "The chip being unselected no longer exists but should."); 1482 } else { 1483 getSpannable().removeSpan(chip); 1484 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1485 editable.removeSpan(chip); 1486 try { 1487 editable.setSpan(constructChipSpan(chip.getEntry(), start, false), start, end, 1488 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1489 } catch (NullPointerException e) { 1490 Log.e(TAG, e.getMessage(), e); 1491 } 1492 } 1493 setCursorVisible(true); 1494 setSelection(editable.length()); 1495 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1496 mAlternatesPopup.dismiss(); 1497 } 1498 } 1499 1500 1501 /** 1502 * Return whether this chip contains the position passed in. 1503 */ 1504 public boolean matchesChip(RecipientChip chip, int offset) { 1505 int start = getChipStart(chip); 1506 int end = getChipEnd(chip); 1507 if (start == -1 || end == -1) { 1508 return false; 1509 } 1510 return (offset >= start && offset <= end); 1511 } 1512 1513 1514 /** 1515 * Return whether a touch event was inside the delete target of 1516 * a selected chip. It is in the delete target if: 1517 * 1) the x and y points of the event are within the 1518 * delete assset. 1519 * 2) the point tapped would have caused a cursor to appear 1520 * right after the selected chip. 1521 * @return boolean 1522 */ 1523 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1524 // Figure out the bounds of this chip and whether or not 1525 // the user clicked in the X portion. 1526 return chip.isSelected() && offset == getChipEnd(chip); 1527 } 1528 1529 /** 1530 * Remove the chip and any text associated with it from the RecipientEditTextView. 1531 */ 1532 private void removeChip(RecipientChip chip) { 1533 Spannable spannable = getSpannable(); 1534 int spanStart = spannable.getSpanStart(chip); 1535 int spanEnd = spannable.getSpanEnd(chip); 1536 Editable text = getText(); 1537 int toDelete = spanEnd; 1538 boolean wasSelected = chip == mSelectedChip; 1539 // Clear that there is a selected chip before updating any text. 1540 if (wasSelected) { 1541 mSelectedChip = null; 1542 } 1543 // Always remove trailing spaces when removing a chip. 1544 while (toDelete >= 0 && toDelete < text.length() && text.charAt(toDelete) == ' ') { 1545 toDelete++; 1546 } 1547 spannable.removeSpan(chip); 1548 text.delete(spanStart, toDelete); 1549 if (wasSelected) { 1550 clearSelectedChip(); 1551 } 1552 } 1553 1554 /** 1555 * Replace this currently selected chip with a new chip 1556 * that uses the contact data provided. 1557 */ 1558 public void replaceChip(RecipientChip chip, RecipientEntry entry) { 1559 boolean wasSelected = chip == mSelectedChip; 1560 if (wasSelected) { 1561 mSelectedChip = null; 1562 } 1563 int start = getChipStart(chip); 1564 int end = getChipEnd(chip); 1565 getSpannable().removeSpan(chip); 1566 Editable editable = getText(); 1567 CharSequence chipText = createChip(entry, false); 1568 if (start == -1 || end == -1) { 1569 Log.e(TAG, "The chip to replace does not exist but should."); 1570 editable.insert(0, chipText); 1571 } else { 1572 // There may be a space to replace with this chip's new associated 1573 // space. Check for it. 1574 int toReplace = end; 1575 while (toReplace >= 0 && toReplace < editable.length() 1576 && editable.charAt(toReplace) == ' ') { 1577 toReplace++; 1578 } 1579 editable.replace(start, toReplace, chipText); 1580 } 1581 setCursorVisible(true); 1582 if (wasSelected) { 1583 clearSelectedChip(); 1584 } 1585 } 1586 1587 /** 1588 * Handle click events for a chip. When a selected chip receives a click 1589 * event, see if that event was in the delete icon. If so, delete it. 1590 * Otherwise, unselect the chip. 1591 */ 1592 public void onClick(RecipientChip chip, int offset, float x, float y) { 1593 if (chip.isSelected()) { 1594 if (isInDelete(chip, offset, x, y)) { 1595 removeChip(chip); 1596 } else { 1597 clearSelectedChip(); 1598 } 1599 } 1600 } 1601 1602 private boolean chipsPending() { 1603 return mPendingChipsCount > 0 || (mRemovedSpans != null && mRemovedSpans.size() > 0); 1604 } 1605 1606 @Override 1607 public void removeTextChangedListener(TextWatcher watcher) { 1608 mTextWatcher = null; 1609 super.removeTextChangedListener(watcher); 1610 } 1611 1612 private class RecipientTextWatcher implements TextWatcher { 1613 @Override 1614 public void afterTextChanged(Editable s) { 1615 // If the text has been set to null or empty, make sure we remove 1616 // all the spans we applied. 1617 if (TextUtils.isEmpty(s)) { 1618 // Remove all the chips spans. 1619 Spannable spannable = getSpannable(); 1620 RecipientChip[] chips = spannable.getSpans(0, getText().length(), 1621 RecipientChip.class); 1622 for (RecipientChip chip : chips) { 1623 spannable.removeSpan(chip); 1624 } 1625 if (mMoreChip != null) { 1626 spannable.removeSpan(mMoreChip); 1627 } 1628 return; 1629 } 1630 // Get whether there are any recipients pending addition to the 1631 // view. If there are, don't do anything in the text watcher. 1632 if (chipsPending()) { 1633 return; 1634 } 1635 if (mSelectedChip != null) { 1636 setCursorVisible(true); 1637 setSelection(getText().length()); 1638 clearSelectedChip(); 1639 } 1640 int length = s.length(); 1641 // Make sure there is content there to parse and that it is 1642 // not just the commit character. 1643 if (length > 1) { 1644 char last; 1645 int end = getSelectionEnd() == 0 ? 0 : getSelectionEnd() - 1; 1646 int len = length() - 1; 1647 if (end != len) { 1648 last = s.charAt(end); 1649 } else { 1650 last = s.charAt(len); 1651 } 1652 if (last == COMMIT_CHAR_SEMICOLON || last == COMMIT_CHAR_COMMA) { 1653 commitByCharacter(); 1654 } else if (last == COMMIT_CHAR_SPACE) { 1655 // Check if this is a valid email address. If it is, 1656 // commit it. 1657 String text = getText().toString(); 1658 int tokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 1659 String sub = text.substring(tokenStart, mTokenizer.findTokenEnd(text, 1660 tokenStart)); 1661 if (mValidator != null && mValidator.isValid(sub)) { 1662 commitByCharacter(); 1663 } 1664 } 1665 } 1666 } 1667 1668 @Override 1669 public void onTextChanged(CharSequence s, int start, int before, int count) { 1670 // Do nothing. 1671 } 1672 1673 @Override 1674 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 1675 } 1676 } 1677 1678 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 1679 private RecipientChip createFreeChip(RecipientEntry entry) { 1680 String displayText = entry.getDestination(); 1681 if (displayText.indexOf(",") == -1) { 1682 displayText = (String) mTokenizer.terminateToken(displayText); 1683 } 1684 try { 1685 return constructChipSpan(entry, -1, false); 1686 } catch (NullPointerException e) { 1687 Log.e(TAG, e.getMessage(), e); 1688 return null; 1689 } 1690 } 1691 1692 @Override 1693 protected Void doInBackground(Void... params) { 1694 if (mIndividualReplacements != null) { 1695 mIndividualReplacements.cancel(true); 1696 } 1697 // For each chip in the list, look up the matching contact. 1698 // If there is a match, replace that chip with the matching 1699 // chip. 1700 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 1701 RecipientChip[] existingChips = getSortedRecipients(); 1702 for (int i = 0; i < existingChips.length; i++) { 1703 originalRecipients.add(existingChips[i]); 1704 } 1705 if (mRemovedSpans != null) { 1706 originalRecipients.addAll(mRemovedSpans); 1707 } 1708 String[] addresses = new String[originalRecipients.size()]; 1709 for (int i = 0; i < originalRecipients.size(); i++) { 1710 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1711 } 1712 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1713 .getMatchingRecipients(getContext(), addresses); 1714 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 1715 for (final RecipientChip temp : originalRecipients) { 1716 RecipientEntry entry = null; 1717 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1718 && getSpannable().getSpanStart(temp) != -1) { 1719 // Replace this. 1720 entry = createValidatedEntry(entries.get(tokenizeAddress(temp.getEntry() 1721 .getDestination()))); 1722 } 1723 if (entry != null) { 1724 replacements.add(createFreeChip(entry)); 1725 } else { 1726 replacements.add(temp); 1727 } 1728 } 1729 if (replacements != null && replacements.size() > 0) { 1730 mHandler.post(new Runnable() { 1731 @Override 1732 public void run() { 1733 SpannableStringBuilder text = new SpannableStringBuilder(getText() 1734 .toString()); 1735 Editable oldText = getText(); 1736 int start, end; 1737 int i = 0; 1738 for (RecipientChip chip : originalRecipients) { 1739 start = oldText.getSpanStart(chip); 1740 if (start != -1) { 1741 end = oldText.getSpanEnd(chip); 1742 text.removeSpan(chip); 1743 // Leave a spot for the space! 1744 RecipientChip replacement = replacements.get(i); 1745 text.setSpan(replacement, start, end, 1746 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1747 replacement.setOriginalText(text.toString().substring(start, end)); 1748 } 1749 i++; 1750 } 1751 Editable editable = getText(); 1752 editable.clear(); 1753 editable.insert(0, text); 1754 originalRecipients.clear(); 1755 } 1756 }); 1757 } 1758 return null; 1759 } 1760 } 1761 1762 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 1763 @SuppressWarnings("unchecked") 1764 @Override 1765 protected Void doInBackground(Object... params) { 1766 // For each chip in the list, look up the matching contact. 1767 // If there is a match, replace that chip with the matching 1768 // chip. 1769 final ArrayList<RecipientChip> originalRecipients = 1770 (ArrayList<RecipientChip>) params[0]; 1771 String[] addresses = new String[originalRecipients.size()]; 1772 for (int i = 0; i < originalRecipients.size(); i++) { 1773 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1774 } 1775 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1776 .getMatchingRecipients(getContext(), addresses); 1777 for (final RecipientChip temp : originalRecipients) { 1778 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1779 && getSpannable().getSpanStart(temp) != -1) { 1780 // Replace this. 1781 final RecipientEntry entry = createValidatedEntry(entries 1782 .get(tokenizeAddress(temp.getEntry().getDestination()))); 1783 if (entry != null) { 1784 mHandler.post(new Runnable() { 1785 @Override 1786 public void run() { 1787 replaceChip(temp, entry); 1788 } 1789 }); 1790 } 1791 } 1792 } 1793 return null; 1794 } 1795 } 1796 1797 1798 /** 1799 * MoreImageSpan is a simple class created for tracking the existence of a 1800 * more chip across activity restarts/ 1801 */ 1802 private class MoreImageSpan extends ImageSpan { 1803 public MoreImageSpan(Drawable b) { 1804 super(b); 1805 } 1806 } 1807 1808 @Override 1809 public boolean onDown(MotionEvent e) { 1810 return false; 1811 } 1812 1813 @Override 1814 public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { 1815 // Do nothing. 1816 return false; 1817 } 1818 1819 @Override 1820 public void onLongPress(MotionEvent event) { 1821 if (mSelectedChip != null) { 1822 return; 1823 } 1824 float x = event.getX(); 1825 float y = event.getY(); 1826 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 1827 RecipientChip currentChip = findChip(offset); 1828 if (currentChip != null) { 1829 // Copy the selected chip email address. 1830 showCopyDialog(currentChip.getEntry().getDestination()); 1831 } 1832 } 1833 1834 private void showCopyDialog(final String address) { 1835 mCopyAddress = address; 1836 mCopyDialog = new Dialog(getContext()); 1837 mCopyDialog.setTitle(address); 1838 mCopyDialog.setContentView(mCopyViewRes); 1839 mCopyDialog.setCancelable(true); 1840 mCopyDialog.setCanceledOnTouchOutside(true); 1841 mCopyDialog.findViewById(android.R.id.button1).setOnClickListener(this); 1842 mCopyDialog.setOnDismissListener(this); 1843 mCopyDialog.show(); 1844 } 1845 1846 @Override 1847 public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) { 1848 // Do nothing. 1849 return false; 1850 } 1851 1852 @Override 1853 public void onShowPress(MotionEvent e) { 1854 // Do nothing. 1855 } 1856 1857 @Override 1858 public boolean onSingleTapUp(MotionEvent e) { 1859 // Do nothing. 1860 return false; 1861 } 1862 1863 @Override 1864 public void onDismiss(DialogInterface dialog) { 1865 mCopyAddress = null; 1866 mCopyDialog = null; 1867 } 1868 1869 @Override 1870 public void onClick(View v) { 1871 // Copy this to the clipboard. 1872 ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService( 1873 Context.CLIPBOARD_SERVICE); 1874 clipboard.setPrimaryClip(ClipData.newPlainText("", mCopyAddress)); 1875 mCopyDialog.dismiss(); 1876 } 1877} 1878