RecipientEditTextView.java revision 61b48ccefc655549802556947eb8cf3959c6ddad
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.Collection; 75import java.util.HashMap; 76import java.util.HashSet; 77import java.util.Set; 78 79/** 80 * RecipientEditTextView is an auto complete text view for use with applications 81 * that use the new Chips UI for addressing a message to recipients. 82 */ 83public class RecipientEditTextView extends MultiAutoCompleteTextView implements 84 OnItemClickListener, Callback, RecipientAlternatesAdapter.OnCheckedItemChangedListener, 85 GestureDetector.OnGestureListener, OnDismissListener, OnClickListener { 86 87 private static final String TAG = "RecipientEditTextView"; 88 89 // TODO: get correct number/ algorithm from with UX. 90 private static final int CHIP_LIMIT = 2; 91 92 private Drawable mChipBackground = null; 93 94 private Drawable mChipDelete = null; 95 96 private int mChipPadding; 97 98 private Tokenizer mTokenizer; 99 100 private Drawable mChipBackgroundPressed; 101 102 private RecipientChip mSelectedChip; 103 104 private int mAlternatesLayout; 105 106 private Bitmap mDefaultContactPhoto; 107 108 private ImageSpan mMoreChip; 109 110 private TextView mMoreItem; 111 112 private final ArrayList<String> mPendingChips = new ArrayList<String>(); 113 114 private float mChipHeight; 115 116 private float mChipFontSize; 117 118 private Validator mValidator; 119 120 private Drawable mInvalidChipBackground; 121 122 private Handler mHandler; 123 124 private static int DISMISS = "dismiss".hashCode(); 125 126 private static final long DISMISS_DELAY = 300; 127 128 private int mPendingChipsCount = 0; 129 130 private static int sSelectedTextColor = -1; 131 132 private static final char COMMIT_CHAR_COMMA = ','; 133 134 private static final char COMMIT_CHAR_SEMICOLON = ';'; 135 136 private static final char COMMIT_CHAR_SPACE = ' '; 137 138 private ListPopupWindow mAlternatesPopup; 139 140 private ListPopupWindow mAddressPopup; 141 142 private ArrayList<RecipientChip> mTemporaryRecipients; 143 144 private ArrayList<RecipientChip> mRemovedSpans; 145 146 private boolean mShouldShrink = true; 147 148 // Chip copy fields. 149 private GestureDetector mGestureDetector; 150 151 private Dialog mCopyDialog; 152 153 private int mCopyViewRes; 154 155 private String mCopyAddress; 156 157 /** 158 * Used with {@link #mAlternatesPopup}. Handles clicks to alternate addresses for a 159 * selected chip. 160 */ 161 private OnItemClickListener mAlternatesListener; 162 163 private int mCheckedItem; 164 private TextWatcher mTextWatcher; 165 166 private ScrollView mScrollView; 167 168 private boolean mTried; 169 170 private final Runnable mAddTextWatcher = new Runnable() { 171 @Override 172 public void run() { 173 if (mTextWatcher == null) { 174 mTextWatcher = new RecipientTextWatcher(); 175 addTextChangedListener(mTextWatcher); 176 } 177 } 178 }; 179 180 private IndividualReplacementTask mIndividualReplacements; 181 182 private Runnable mHandlePendingChips = new Runnable() { 183 184 @Override 185 public void run() { 186 handlePendingChips(); 187 } 188 189 }; 190 191 public RecipientEditTextView(Context context, AttributeSet attrs) { 192 super(context, attrs); 193 if (sSelectedTextColor == -1) { 194 sSelectedTextColor = context.getResources().getColor(android.R.color.white); 195 } 196 mAlternatesPopup = new ListPopupWindow(context); 197 mAddressPopup = new ListPopupWindow(context); 198 mAlternatesListener = new OnItemClickListener() { 199 @Override 200 public void onItemClick(AdapterView<?> adapterView,View view, int position, 201 long rowId) { 202 mAlternatesPopup.setOnItemClickListener(null); 203 replaceChip(mSelectedChip, ((RecipientAlternatesAdapter) adapterView.getAdapter()) 204 .getRecipientEntry(position)); 205 Message delayed = Message.obtain(mHandler, DISMISS); 206 delayed.obj = mAlternatesPopup; 207 mHandler.sendMessageDelayed(delayed, DISMISS_DELAY); 208 clearComposingText(); 209 } 210 }; 211 setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS); 212 setOnItemClickListener(this); 213 setCustomSelectionActionModeCallback(this); 214 mHandler = new Handler() { 215 @Override 216 public void handleMessage(Message msg) { 217 if (msg.what == DISMISS) { 218 ((ListPopupWindow) msg.obj).dismiss(); 219 return; 220 } 221 super.handleMessage(msg); 222 } 223 }; 224 mTextWatcher = new RecipientTextWatcher(); 225 addTextChangedListener(mTextWatcher); 226 mGestureDetector = new GestureDetector(context, this); 227 } 228 229 @Override 230 public <T extends ListAdapter & Filterable> void setAdapter(T adapter) { 231 super.setAdapter(adapter); 232 if (adapter == null) { 233 return; 234 } 235 } 236 237 @Override 238 public void onSelectionChanged(int start, int end) { 239 // When selection changes, see if it is inside the chips area. 240 // If so, move the cursor back after the chips again. 241 Spannable span = getSpannable(); 242 int textLength = getText().length(); 243 RecipientChip[] chips = span.getSpans(start, textLength, RecipientChip.class); 244 if (chips != null && chips.length > 0) { 245 if (chips != null && chips.length > 0) { 246 // Grab the last chip and set the cursor to after it. 247 setSelection(Math.min(span.getSpanEnd(chips[chips.length - 1]) + 1, textLength)); 248 } 249 } 250 super.onSelectionChanged(start, end); 251 } 252 253 /** 254 * Convenience method: Append the specified text slice to the TextView's 255 * display buffer, upgrading it to BufferType.EDITABLE if it was 256 * not already editable. Commas are excluded as they are added automatically 257 * by the view. 258 */ 259 @Override 260 public void append(CharSequence text, int start, int end) { 261 // We don't care about watching text changes while appending. 262 if (mTextWatcher != null) { 263 removeTextChangedListener(mTextWatcher); 264 } 265 super.append(text, start, end); 266 if (!TextUtils.isEmpty(text) && TextUtils.getTrimmedLength(text) > 0) { 267 final String displayString = (String) text; 268 int seperatorPos = displayString.indexOf(COMMIT_CHAR_COMMA); 269 if (seperatorPos != 0 && !TextUtils.isEmpty(displayString) 270 && TextUtils.getTrimmedLength(displayString) > 0) { 271 mPendingChipsCount++; 272 mPendingChips.add((String)text); 273 } 274 } 275 // Put a message on the queue to make sure we ALWAYS handle pending chips. 276 if (mPendingChipsCount > 0) { 277 postHandlePendingChips(); 278 } 279 mHandler.post(mAddTextWatcher); 280 } 281 282 @Override 283 public void onFocusChanged(boolean hasFocus, int direction, Rect previous) { 284 if (!hasFocus) { 285 shrink(); 286 } else { 287 expand(); 288 scrollLineIntoView(getLineCount()); 289 } 290 super.onFocusChanged(hasFocus, direction, previous); 291 } 292 293 private void shrink() { 294 if (mSelectedChip != null) { 295 clearSelectedChip(); 296 } else { 297 // Reset any pending chips as they would have been handled 298 // when the field lost focus. 299 if (mPendingChipsCount > 0) { 300 postHandlePendingChips(); 301 } else { 302 Editable editable = getText(); 303 int end = getSelectionEnd(); 304 int start = mTokenizer.findTokenStart(editable, end); 305 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 306 if ((chips == null || chips.length == 0)) { 307 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 308 // In the middle of chip; treat this as an edit 309 // and commit the whole token. 310 if (whatEnd != getSelectionEnd()) { 311 handleEdit(start, whatEnd); 312 } else { 313 commitChip(start, end, editable); 314 } 315 } 316 } 317 mHandler.post(mAddTextWatcher); 318 } 319 createMoreChip(); 320 } 321 322 private void expand() { 323 removeMoreChip(); 324 setCursorVisible(true); 325 Editable text = getText(); 326 setSelection(text != null && text.length() > 0 ? text.length() : 0); 327 // If there are any temporary chips, try replacing them now that the user 328 // has expanded the field. 329 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0) { 330 new RecipientReplacementTask().execute(); 331 mTemporaryRecipients = null; 332 } 333 } 334 335 private CharSequence ellipsizeText(CharSequence text, TextPaint paint, float maxWidth) { 336 paint.setTextSize(mChipFontSize); 337 if (maxWidth <= 0 && Log.isLoggable(TAG, Log.DEBUG)) { 338 Log.d(TAG, "Max width is negative: " + maxWidth); 339 } 340 return TextUtils.ellipsize(text, paint, maxWidth, 341 TextUtils.TruncateAt.END); 342 } 343 344 private Bitmap createSelectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 345 // Ellipsize the text so that it takes AT MOST the entire width of the 346 // autocomplete text entry area. Make sure to leave space for padding 347 // on the sides. 348 int height = (int) mChipHeight; 349 int deleteWidth = height; 350 CharSequence ellipsizedText = ellipsizeText(contact.getDisplayName(), paint, 351 calculateAvailableWidth(true) - deleteWidth); 352 353 // Make sure there is a minimum chip width so the user can ALWAYS 354 // tap a chip without difficulty. 355 int width = Math.max(deleteWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 356 ellipsizedText.length())) 357 + (mChipPadding * 2) + deleteWidth); 358 359 // Create the background of the chip. 360 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 361 Canvas canvas = new Canvas(tmpBitmap); 362 if (mChipBackgroundPressed != null) { 363 mChipBackgroundPressed.setBounds(0, 0, width, height); 364 mChipBackgroundPressed.draw(canvas); 365 paint.setColor(sSelectedTextColor); 366 // Align the display text with where the user enters text. 367 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, height 368 - Math.abs(height - mChipFontSize)/2, paint); 369 // Make the delete a square. 370 mChipDelete.setBounds(width - deleteWidth, 0, width, height); 371 mChipDelete.draw(canvas); 372 } else { 373 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 374 } 375 return tmpBitmap; 376 } 377 378 379 /** 380 * Get the background drawable for a RecipientChip. 381 */ 382 public Drawable getChipBackground(RecipientEntry contact) { 383 return (mValidator != null && mValidator.isValid(contact.getDestination())) ? 384 mChipBackground : mInvalidChipBackground; 385 } 386 387 private Bitmap createUnselectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 388 // Ellipsize the text so that it takes AT MOST the entire width of the 389 // autocomplete text entry area. Make sure to leave space for padding 390 // on the sides. 391 int height = (int) mChipHeight; 392 int iconWidth = height; 393 String displayText = 394 !TextUtils.isEmpty(contact.getDisplayName()) ? contact.getDisplayName() : 395 !TextUtils.isEmpty(contact.getDestination()) ? contact.getDestination() : ""; 396 CharSequence ellipsizedText = ellipsizeText(displayText, paint, 397 calculateAvailableWidth(false) - iconWidth); 398 // Make sure there is a minimum chip width so the user can ALWAYS 399 // tap a chip without difficulty. 400 int width = Math.max(iconWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 401 ellipsizedText.length())) 402 + (mChipPadding * 2) + iconWidth); 403 404 // Create the background of the chip. 405 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 406 Canvas canvas = new Canvas(tmpBitmap); 407 Drawable background = getChipBackground(contact); 408 if (background != null) { 409 background.setBounds(0, 0, width, height); 410 background.draw(canvas); 411 412 // Don't draw photos for recipients that have been typed in. 413 if (contact.getContactId() != RecipientEntry.INVALID_CONTACT) { 414 byte[] photoBytes = contact.getPhotoBytes(); 415 // There may not be a photo yet if anything but the first contact address 416 // was selected. 417 if (photoBytes == null && contact.getPhotoThumbnailUri() != null) { 418 // TODO: cache this in the recipient entry? 419 ((BaseRecipientAdapter) getAdapter()).fetchPhoto(contact, contact 420 .getPhotoThumbnailUri()); 421 photoBytes = contact.getPhotoBytes(); 422 } 423 424 Bitmap photo; 425 if (photoBytes != null) { 426 photo = BitmapFactory.decodeByteArray(photoBytes, 0, photoBytes.length); 427 } else { 428 // TODO: can the scaled down default photo be cached? 429 photo = mDefaultContactPhoto; 430 } 431 // Draw the photo on the left side. 432 Matrix matrix = new Matrix(); 433 RectF src = new RectF(0, 0, photo.getWidth(), photo.getHeight()); 434 RectF dst = new RectF(width - iconWidth, 0, width, height); 435 matrix.setRectToRect(src, dst, Matrix.ScaleToFit.CENTER); 436 canvas.drawBitmap(photo, matrix, paint); 437 } else { 438 // Don't leave any space for the icon. It isn't being drawn. 439 iconWidth = 0; 440 } 441 442 // Align the display text with where the user enters text. 443 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 444 height - Math.abs(height - mChipFontSize) / 2, paint); 445 } else { 446 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 447 } 448 return tmpBitmap; 449 } 450 451 public RecipientChip constructChipSpan(RecipientEntry contact, int offset, boolean pressed) 452 throws NullPointerException { 453 if (mChipBackground == null) { 454 throw new NullPointerException( 455 "Unable to render any chips as setChipDimensions was not called."); 456 } 457 Layout layout = getLayout(); 458 459 TextPaint paint = getPaint(); 460 float defaultSize = paint.getTextSize(); 461 int defaultColor = paint.getColor(); 462 463 Bitmap tmpBitmap; 464 if (pressed) { 465 tmpBitmap = createSelectedChip(contact, paint, layout); 466 467 } else { 468 tmpBitmap = createUnselectedChip(contact, paint, layout); 469 } 470 471 // Pass the full text, un-ellipsized, to the chip. 472 Drawable result = new BitmapDrawable(getResources(), tmpBitmap); 473 result.setBounds(0, 0, tmpBitmap.getWidth(), tmpBitmap.getHeight()); 474 RecipientChip recipientChip = new RecipientChip(result, contact, offset); 475 // Return text to the original size. 476 paint.setTextSize(defaultSize); 477 paint.setColor(defaultColor); 478 return recipientChip; 479 } 480 481 /** 482 * Calculate the bottom of the line the chip will be located on using: 483 * 1) which line the chip appears on 484 * 2) the height of a chip 485 * 3) padding built into the edit text view 486 */ 487 private int calculateOffsetFromBottom(int line) { 488 // Line offsets start at zero. 489 int actualLine = getLineCount() - (line + 1); 490 return -((actualLine * ((int)mChipHeight) + getPaddingBottom()) + getPaddingTop()); 491 } 492 493 /** 494 * Get the max amount of space a chip can take up. The formula takes into 495 * account the width of the EditTextView, any view padding, and padding 496 * that will be added to the chip. 497 */ 498 private float calculateAvailableWidth(boolean pressed) { 499 return getWidth() - getPaddingLeft() - getPaddingRight() - (mChipPadding * 2); 500 } 501 502 /** 503 * Set all chip dimensions and resources. This has to be done from the 504 * application as this is a static library. 505 * @param chipBackground 506 * @param chipBackgroundPressed 507 * @param invalidChip 508 * @param chipDelete 509 * @param defaultContact 510 * @param moreResource 511 * @param alternatesLayout 512 * @param chipHeight 513 * @param padding Padding around the text in a chip 514 * @param chipFontSize 515 * @param copyViewRes 516 */ 517 public void setChipDimensions(Drawable chipBackground, Drawable chipBackgroundPressed, 518 Drawable invalidChip, Drawable chipDelete, Bitmap defaultContact, int moreResource, 519 int alternatesLayout, float chipHeight, float padding, 520 float chipFontSize, int copyViewRes) { 521 mChipBackground = chipBackground; 522 mChipBackgroundPressed = chipBackgroundPressed; 523 mChipDelete = chipDelete; 524 mChipPadding = (int) padding; 525 mAlternatesLayout = alternatesLayout; 526 mDefaultContactPhoto = defaultContact; 527 mMoreItem = (TextView) LayoutInflater.from(getContext()).inflate(moreResource, null); 528 mChipHeight = chipHeight; 529 mChipFontSize = chipFontSize; 530 mInvalidChipBackground = invalidChip; 531 mCopyViewRes = copyViewRes; 532 } 533 534 /** 535 * Set whether to shrink the recipients field such that at most 536 * one line of recipients chips are shown when the field loses 537 * focus. By default, the number of displayed recipients will be 538 * limited and a "more" chip will be shown when focus is lost. 539 * @param shrink 540 */ 541 public void setOnFocusListShrinkRecipients(boolean shrink) { 542 mShouldShrink = shrink; 543 } 544 545 @Override 546 public void onSizeChanged(int width, int height, int oldw, int oldh) { 547 super.onSizeChanged(width, height, oldw, oldh); 548 if (width != 0 && height != 0 && mPendingChipsCount > 0) { 549 postHandlePendingChips(); 550 } 551 // Try to find the scroll view parent, if it exists. 552 if (mScrollView == null && !mTried) { 553 ViewParent parent = getParent(); 554 while (parent != null && !(parent instanceof ScrollView)) { 555 parent = parent.getParent(); 556 } 557 if (parent != null) { 558 mScrollView = (ScrollView) parent; 559 } 560 mTried = true; 561 } 562 } 563 564 private void postHandlePendingChips() { 565 mHandler.removeCallbacks(mHandlePendingChips); 566 mHandler.post(mHandlePendingChips); 567 } 568 569 private void handlePendingChips() { 570 if (mPendingChipsCount <= 0) { 571 return; 572 } 573 if (getWidth() <= 0) { 574 // The widget has not been sized yet. 575 // This will be called as a result of onSizeChanged 576 // at a later point. 577 return; 578 } 579 synchronized (mPendingChips) { 580 mTemporaryRecipients = new ArrayList<RecipientChip>(mPendingChipsCount); 581 Editable editable = getText(); 582 // Tokenize! 583 for (int i = 0; i < mPendingChips.size(); i++) { 584 String current = mPendingChips.get(i); 585 int tokenStart = editable.toString().indexOf(current); 586 int tokenEnd = tokenStart + current.length(); 587 if (tokenStart >= 0) { 588 // When we have a valid token, include it with the token 589 // to the left. 590 if (tokenEnd < editable.length() - 2 591 && editable.charAt(tokenEnd) == COMMIT_CHAR_COMMA) { 592 tokenEnd++; 593 } 594 createReplacementChip(tokenStart, tokenEnd, editable); 595 } 596 mPendingChipsCount--; 597 } 598 sanitizeSpannable(); 599 if (mTemporaryRecipients != null 600 && mTemporaryRecipients.size() <= RecipientAlternatesAdapter.MAX_LOOKUPS) { 601 if (hasFocus() || mTemporaryRecipients.size() < CHIP_LIMIT) { 602 new RecipientReplacementTask().execute(); 603 mTemporaryRecipients = null; 604 } else { 605 // Create the "more" chip 606 mIndividualReplacements = new IndividualReplacementTask(); 607 mIndividualReplacements.execute(new ArrayList<RecipientChip>( 608 mTemporaryRecipients.subList(0, CHIP_LIMIT))); 609 610 createMoreChip(); 611 } 612 } else { 613 // There are too many recipients to look up, so just fall back 614 // to 615 // showing addresses for all of them. 616 mTemporaryRecipients = null; 617 createMoreChip(); 618 } 619 mPendingChipsCount = 0; 620 mPendingChips.clear(); 621 } 622 } 623 624 /** 625 * Remove any characters after the last valid chip. 626 */ 627 private void sanitizeSpannable() { 628 // Find the last chip; eliminate any commit characters after it. 629 RecipientChip[] chips = getRecipients(); 630 if (chips != null && chips.length > 0) { 631 int end; 632 ImageSpan lastSpan; 633 if (mMoreChip != null) { 634 lastSpan = mMoreChip; 635 } else { 636 lastSpan = chips[chips.length - 1]; 637 } 638 end = getSpannable().getSpanEnd(lastSpan); 639 Editable editable = getText(); 640 int length = editable.length(); 641 if (length > end) { 642 // See what characters occur after that and eliminate them. 643 if (Log.isLoggable(TAG, Log.DEBUG)) { 644 Log.d(TAG, "There were extra characters after the last tokenizable entry." 645 + editable); 646 } 647 editable.delete(end + 1, length); 648 } 649 } 650 } 651 652 /** 653 * Create a chip that represents just the email address of a recipient. At some later 654 * point, this chip will be attached to a real contact entry, if one exists. 655 */ 656 private void createReplacementChip(int tokenStart, int tokenEnd, Editable editable) { 657 if (alreadyHasChip(tokenStart, tokenEnd)) { 658 // There is already a chip present at this location. 659 // Don't recreate it. 660 return; 661 } 662 String token = editable.toString().substring(tokenStart, tokenEnd); 663 int commitCharIndex = token.trim().lastIndexOf(COMMIT_CHAR_COMMA); 664 if (commitCharIndex == token.length() - 1) { 665 token = token.substring(0, token.length() - 1); 666 } 667 RecipientEntry entry = createTokenizedEntry(token); 668 if (entry != null) { 669 String destText = entry.getDestination(); 670 destText = (String) mTokenizer.terminateToken(destText); 671 // Always leave a blank space at the end of a chip. 672 int textLength = destText.length() - 1; 673 SpannableString chipText = new SpannableString(destText); 674 int end = getSelectionEnd(); 675 int start = mTokenizer.findTokenStart(getText(), end); 676 RecipientChip chip = null; 677 try { 678 chip = constructChipSpan(entry, start, false); 679 chipText.setSpan(chip, 0, textLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 680 } catch (NullPointerException e) { 681 Log.e(TAG, e.getMessage(), e); 682 } 683 684 editable.replace(tokenStart, tokenEnd, chipText); 685 // Add this chip to the list of entries "to replace" 686 if (chip != null) { 687 mTemporaryRecipients.add(chip); 688 } 689 } 690 } 691 692 private RecipientEntry createTokenizedEntry(String token) { 693 if (TextUtils.isEmpty(token)) { 694 return null; 695 } 696 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(token); 697 String display = null; 698 if (isValid(token) && tokens != null && tokens.length > 0) { 699 // If we can get a name from tokenizing, then generate an entry from 700 // this. 701 display = tokens[0].getName(); 702 if (!TextUtils.isEmpty(display)) { 703 return RecipientEntry.constructGeneratedEntry(display, token); 704 } else { 705 display = tokens[0].getAddress(); 706 if (!TextUtils.isEmpty(display)) { 707 return RecipientEntry.constructFakeEntry(display); 708 } 709 } 710 } 711 // Unable to validate the token or to create a valid token from it. 712 // Just create a chip the user can edit. 713 if (mValidator != null && !mValidator.isValid(token)) { 714 // Try fixing up the entry using the validator. 715 token = mValidator.fixText(token).toString(); 716 if (!TextUtils.isEmpty(token)) { 717 // protect against the case of a validator with a null domain, 718 // which doesn't add a domain to the token 719 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(token); 720 if (tokenized.length > 0) { 721 token = tokenized[0].getAddress(); 722 } 723 } 724 } 725 // Otherwise, fallback to just creating an editable email address chip. 726 return RecipientEntry.constructFakeEntry(token); 727 } 728 729 private boolean isValid(String text) { 730 return mValidator == null ? true : mValidator.isValid(text); 731 } 732 733 private String tokenizeAddress(String destination) { 734 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(destination); 735 if (tokens != null && tokens.length > 0) { 736 return tokens[0].getAddress(); 737 } 738 return destination; 739 } 740 741 @Override 742 public void setTokenizer(Tokenizer tokenizer) { 743 mTokenizer = tokenizer; 744 super.setTokenizer(mTokenizer); 745 } 746 747 @Override 748 public void setValidator(Validator validator) { 749 mValidator = validator; 750 super.setValidator(validator); 751 } 752 753 /** 754 * We cannot use the default mechanism for replaceText. Instead, 755 * we override onItemClickListener so we can get all the associated 756 * contact information including display text, address, and id. 757 */ 758 @Override 759 protected void replaceText(CharSequence text) { 760 return; 761 } 762 763 /** 764 * Dismiss any selected chips when the back key is pressed. 765 */ 766 @Override 767 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 768 if (keyCode == KeyEvent.KEYCODE_BACK) { 769 clearSelectedChip(); 770 } 771 return super.onKeyPreIme(keyCode, event); 772 } 773 774 /** 775 * Monitor key presses in this view to see if the user types 776 * any commit keys, which consist of ENTER, TAB, or DPAD_CENTER. 777 * If the user has entered text that has contact matches and types 778 * a commit key, create a chip from the topmost matching contact. 779 * If the user has entered text that has no contact matches and types 780 * a commit key, then create a chip from the text they have entered. 781 */ 782 @Override 783 public boolean onKeyUp(int keyCode, KeyEvent event) { 784 switch (keyCode) { 785 case KeyEvent.KEYCODE_ENTER: 786 case KeyEvent.KEYCODE_DPAD_CENTER: 787 if (event.hasNoModifiers()) { 788 if (commitDefault()) { 789 return true; 790 } 791 if (mSelectedChip != null) { 792 clearSelectedChip(); 793 return true; 794 } else if (focusNext()) { 795 return true; 796 } 797 } 798 break; 799 case KeyEvent.KEYCODE_TAB: 800 if (event.hasNoModifiers()) { 801 if (mSelectedChip != null) { 802 clearSelectedChip(); 803 } else { 804 commitDefault(); 805 } 806 if (focusNext()) { 807 return true; 808 } 809 } 810 } 811 return super.onKeyUp(keyCode, event); 812 } 813 814 private boolean focusNext() { 815 View next = focusSearch(View.FOCUS_DOWN); 816 if (next != null) { 817 next.requestFocus(); 818 return true; 819 } 820 return false; 821 } 822 823 /** 824 * Create a chip from the default selection. If the popup is showing, the 825 * default is the first item in the popup suggestions list. Otherwise, it is 826 * whatever the user had typed in. End represents where the the tokenizer 827 * should search for a token to turn into a chip. 828 * @return If a chip was created from a real contact. 829 */ 830 private boolean commitDefault() { 831 Editable editable = getText(); 832 int end = getSelectionEnd(); 833 int start = mTokenizer.findTokenStart(editable, end); 834 835 if (shouldCreateChip(start, end)) { 836 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 837 // In the middle of chip; treat this as an edit 838 // and commit the whole token. 839 if (whatEnd != getSelectionEnd()) { 840 handleEdit(start, whatEnd); 841 return true; 842 } 843 return commitChip(start, end , editable); 844 } 845 return false; 846 } 847 848 private void commitByCharacter() { 849 Editable editable = getText(); 850 int end = getSelectionEnd(); 851 int start = mTokenizer.findTokenStart(editable, end); 852 if (shouldCreateChip(start, end)) { 853 commitChip(start, end, editable); 854 } 855 setSelection(getText().length()); 856 } 857 858 private boolean commitChip(int start, int end, Editable editable) { 859 if (getAdapter().getCount() > 0 && enoughToFilter()) { 860 // choose the first entry. 861 submitItemAtPosition(0); 862 dismissDropDown(); 863 return true; 864 } else { 865 int tokenEnd = mTokenizer.findTokenEnd(editable, start); 866 String text = editable.toString().substring(start, tokenEnd).trim(); 867 clearComposingText(); 868 if (text != null && text.length() > 0 && !text.equals(" ")) { 869 RecipientEntry entry = createTokenizedEntry(text); 870 if (entry != null) { 871 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 872 CharSequence chipText = createChip(entry, false); 873 editable.replace(start, end, chipText); 874 } 875 dismissDropDown(); 876 return true; 877 } 878 } 879 return false; 880 } 881 882 private boolean shouldCreateChip(int start, int end) { 883 return hasFocus() && enoughToFilter() && !alreadyHasChip(start, end); 884 } 885 886 private boolean alreadyHasChip(int start, int end) { 887 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 888 if ((chips == null || chips.length == 0)) { 889 return false; 890 } 891 return true; 892 } 893 894 private void handleEdit(int start, int end) { 895 // This is in the middle of a chip, so select out the whole chip 896 // and commit it. 897 Editable editable = getText(); 898 setSelection(end); 899 String text = getText().toString().substring(start, end); 900 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 901 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 902 CharSequence chipText = createChip(entry, false); 903 editable.replace(start, getSelectionEnd(), chipText); 904 dismissDropDown(); 905 } 906 907 /** 908 * If there is a selected chip, delegate the key events 909 * to the selected chip. 910 */ 911 @Override 912 public boolean onKeyDown(int keyCode, KeyEvent event) { 913 if (mSelectedChip != null && keyCode == KeyEvent.KEYCODE_DEL) { 914 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 915 mAlternatesPopup.dismiss(); 916 } 917 removeChip(mSelectedChip); 918 } 919 920 if (keyCode == KeyEvent.KEYCODE_ENTER && event.hasNoModifiers()) { 921 return true; 922 } 923 924 return super.onKeyDown(keyCode, event); 925 } 926 927 private Spannable getSpannable() { 928 return getText(); 929 } 930 931 private int getChipStart(RecipientChip chip) { 932 return getSpannable().getSpanStart(chip); 933 } 934 935 private int getChipEnd(RecipientChip chip) { 936 return getSpannable().getSpanEnd(chip); 937 } 938 939 /** 940 * Instead of filtering on the entire contents of the edit box, 941 * this subclass method filters on the range from 942 * {@link Tokenizer#findTokenStart} to {@link #getSelectionEnd} 943 * if the length of that range meets or exceeds {@link #getThreshold} 944 * and makes sure that the range is not already a Chip. 945 */ 946 @Override 947 protected void performFiltering(CharSequence text, int keyCode) { 948 if (enoughToFilter()) { 949 int end = getSelectionEnd(); 950 int start = mTokenizer.findTokenStart(text, end); 951 // If this is a RecipientChip, don't filter 952 // on its contents. 953 Spannable span = getSpannable(); 954 RecipientChip[] chips = span.getSpans(start, end, RecipientChip.class); 955 if (chips != null && chips.length > 0) { 956 return; 957 } 958 } 959 super.performFiltering(text, keyCode); 960 } 961 962 private void clearSelectedChip() { 963 if (mSelectedChip != null) { 964 unselectChip(mSelectedChip); 965 mSelectedChip = null; 966 } 967 setCursorVisible(true); 968 } 969 970 /** 971 * Monitor touch events in the RecipientEditTextView. 972 * If the view does not have focus, any tap on the view 973 * will just focus the view. If the view has focus, determine 974 * if the touch target is a recipient chip. If it is and the chip 975 * is not selected, select it and clear any other selected chips. 976 * If it isn't, then select that chip. 977 */ 978 @Override 979 public boolean onTouchEvent(MotionEvent event) { 980 if (!isFocused()) { 981 // Ignore any chip taps until this view is focused. 982 return super.onTouchEvent(event); 983 } 984 985 boolean handled = super.onTouchEvent(event); 986 int action = event.getAction(); 987 boolean chipWasSelected = false; 988 if (action == MotionEvent.ACTION_DOWN && mSelectedChip == null) { 989 mGestureDetector.onTouchEvent(event); 990 } 991 if (mCopyDialog == null && action == MotionEvent.ACTION_UP) { 992 float x = event.getX(); 993 float y = event.getY(); 994 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 995 RecipientChip currentChip = findChip(offset); 996 if (currentChip != null) { 997 if (action == MotionEvent.ACTION_UP) { 998 if (mSelectedChip != null && mSelectedChip != currentChip) { 999 clearSelectedChip(); 1000 mSelectedChip = selectChip(currentChip); 1001 } else if (mSelectedChip == null) { 1002 // Selection may have moved due to the tap event, 1003 // but make sure we correctly reset selection to the 1004 // end so that any unfinished chips are committed. 1005 setSelection(getText().length()); 1006 commitDefault(); 1007 mSelectedChip = selectChip(currentChip); 1008 } else { 1009 onClick(mSelectedChip, offset, x, y); 1010 } 1011 } 1012 chipWasSelected = true; 1013 handled = true; 1014 } 1015 } 1016 if (action == MotionEvent.ACTION_UP && !chipWasSelected) { 1017 clearSelectedChip(); 1018 } 1019 return handled; 1020 } 1021 1022 private void scrollLineIntoView(int line) { 1023 if (mScrollView != null) { 1024 mScrollView.scrollBy(0, calculateOffsetFromBottom(line)); 1025 } 1026 } 1027 1028 private void showAlternates(RecipientChip currentChip, ListPopupWindow alternatesPopup, 1029 int width, Context context) { 1030 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1031 int bottom = calculateOffsetFromBottom(line); 1032 // Align the alternates popup with the left side of the View, 1033 // regardless of the position of the chip tapped. 1034 alternatesPopup.setWidth(width); 1035 alternatesPopup.setAnchorView(this); 1036 alternatesPopup.setVerticalOffset(bottom); 1037 alternatesPopup.setAdapter(createAlternatesAdapter(currentChip)); 1038 alternatesPopup.setOnItemClickListener(mAlternatesListener); 1039 alternatesPopup.show(); 1040 ListView listView = alternatesPopup.getListView(); 1041 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1042 // Checked item would be -1 if the adapter has not 1043 // loaded the view that should be checked yet. The 1044 // variable will be set correctly when onCheckedItemChanged 1045 // is called in a separate thread. 1046 if (mCheckedItem != -1) { 1047 listView.setItemChecked(mCheckedItem, true); 1048 mCheckedItem = -1; 1049 } 1050 } 1051 1052 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 1053 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 1054 mAlternatesLayout, this); 1055 } 1056 1057 private ListAdapter createSingleAddressAdapter(RecipientChip currentChip) { 1058 return new SingleRecipientArrayAdapter(getContext(), mAlternatesLayout, currentChip 1059 .getEntry()); 1060 } 1061 1062 @Override 1063 public void onCheckedItemChanged(int position) { 1064 ListView listView = mAlternatesPopup.getListView(); 1065 if (listView != null && listView.getCheckedItemCount() == 0) { 1066 listView.setItemChecked(position, true); 1067 } else { 1068 mCheckedItem = position; 1069 } 1070 } 1071 1072 // TODO: This algorithm will need a lot of tweaking after more people have used 1073 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 1074 // what comes before the finger. 1075 private int putOffsetInRange(int o) { 1076 int offset = o; 1077 Editable text = getText(); 1078 int length = text.length(); 1079 // Remove whitespace from end to find "real end" 1080 int realLength = length; 1081 for (int i = length - 1; i >= 0; i--) { 1082 if (text.charAt(i) == ' ') { 1083 realLength--; 1084 } else { 1085 break; 1086 } 1087 } 1088 1089 // If the offset is beyond or at the end of the text, 1090 // leave it alone. 1091 if (offset >= realLength) { 1092 return offset; 1093 } 1094 Editable editable = getText(); 1095 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 1096 // Keep walking backward! 1097 offset--; 1098 } 1099 return offset; 1100 } 1101 1102 private int findText(Editable text, int offset) { 1103 if (text.charAt(offset) != ' ') { 1104 return offset; 1105 } 1106 return -1; 1107 } 1108 1109 private RecipientChip findChip(int offset) { 1110 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1111 // Find the chip that contains this offset. 1112 for (int i = 0; i < chips.length; i++) { 1113 RecipientChip chip = chips[i]; 1114 int start = getChipStart(chip); 1115 int end = getChipEnd(chip); 1116 if (offset >= start && offset <= end) { 1117 return chip; 1118 } 1119 } 1120 return null; 1121 } 1122 1123 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 1124 String displayText = entry.getDestination(); 1125 displayText = (String) mTokenizer.terminateToken(displayText); 1126 // Always leave a blank space at the end of a chip. 1127 int textLength = displayText.length()-1; 1128 SpannableString chipText = new SpannableString(displayText); 1129 int end = getSelectionEnd(); 1130 int start = mTokenizer.findTokenStart(getText(), end); 1131 try { 1132 chipText.setSpan(constructChipSpan(entry, start, pressed), 0, textLength, 1133 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1134 } catch (NullPointerException e) { 1135 Log.e(TAG, e.getMessage(), e); 1136 return null; 1137 } 1138 1139 return chipText; 1140 } 1141 1142 /** 1143 * When an item in the suggestions list has been clicked, create a chip from the 1144 * contact information of the selected item. 1145 */ 1146 @Override 1147 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1148 submitItemAtPosition(position); 1149 } 1150 1151 private void submitItemAtPosition(int position) { 1152 RecipientEntry entry = createValidatedEntry( 1153 (RecipientEntry)getAdapter().getItem(position)); 1154 if (entry == null) { 1155 return; 1156 } 1157 clearComposingText(); 1158 1159 int end = getSelectionEnd(); 1160 int start = mTokenizer.findTokenStart(getText(), end); 1161 1162 Editable editable = getText(); 1163 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1164 CharSequence chip = createChip(entry, false); 1165 if (chip != null) { 1166 editable.replace(start, end, chip); 1167 } 1168 } 1169 1170 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1171 if (item == null) { 1172 return null; 1173 } 1174 final RecipientEntry entry; 1175 // If the display name and the address are the same, or if this is a 1176 // valid contact, but the destination is invalid, then make this a fake 1177 // recipient that is editable. 1178 String destination = item.getDestination(); 1179 if (TextUtils.isEmpty(item.getDisplayName()) 1180 || TextUtils.equals(item.getDisplayName(), destination) 1181 || (mValidator != null && !mValidator.isValid(destination))) { 1182 entry = RecipientEntry.constructFakeEntry(destination); 1183 } else { 1184 entry = item; 1185 } 1186 return entry; 1187 } 1188 1189 /** Returns a collection of contact Id for each chip inside this View. */ 1190 /* package */ Collection<Long> getContactIds() { 1191 final Set<Long> result = new HashSet<Long>(); 1192 RecipientChip[] chips = getRecipients(); 1193 if (chips != null) { 1194 for (RecipientChip chip : chips) { 1195 result.add(chip.getContactId()); 1196 } 1197 } 1198 return result; 1199 } 1200 1201 private RecipientChip[] getRecipients() { 1202 return getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1203 } 1204 1205 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1206 /* package */ Collection<Long> getDataIds() { 1207 final Set<Long> result = new HashSet<Long>(); 1208 RecipientChip [] chips = getRecipients(); 1209 if (chips != null) { 1210 for (RecipientChip chip : chips) { 1211 result.add(chip.getDataId()); 1212 } 1213 } 1214 return result; 1215 } 1216 1217 1218 @Override 1219 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1220 return false; 1221 } 1222 1223 @Override 1224 public void onDestroyActionMode(ActionMode mode) { 1225 } 1226 1227 @Override 1228 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1229 return false; 1230 } 1231 1232 /** 1233 * No chips are selectable. 1234 */ 1235 @Override 1236 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1237 return false; 1238 } 1239 1240 /** 1241 * Create the more chip. The more chip is text that replaces any chips that 1242 * do not fit in the pre-defined available space when the 1243 * RecipientEditTextView loses focus. 1244 */ 1245 private void createMoreChip() { 1246 if (!mShouldShrink) { 1247 return; 1248 } 1249 1250 RecipientChip[] recipients = getRecipients(); 1251 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1252 mMoreChip = null; 1253 return; 1254 } 1255 int numRecipients = recipients.length; 1256 int overage = numRecipients - CHIP_LIMIT; 1257 Editable text = getText(); 1258 String moreText = String.format(mMoreItem.getText().toString(), overage); 1259 TextPaint morePaint = new TextPaint(getPaint()); 1260 morePaint.setTextSize(mMoreItem.getTextSize()); 1261 morePaint.setColor(mMoreItem.getCurrentTextColor()); 1262 int width = (int)morePaint.measureText(moreText) + mMoreItem.getPaddingLeft() 1263 + mMoreItem.getPaddingRight(); 1264 int height = getLineHeight(); 1265 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1266 Canvas canvas = new Canvas(drawable); 1267 canvas.drawText(moreText, 0, moreText.length(), 0, height - getLayout().getLineDescent(0), 1268 morePaint); 1269 1270 Drawable result = new BitmapDrawable(getResources(), drawable); 1271 result.setBounds(0, 0, width, height); 1272 ImageSpan moreSpan = new ImageSpan(result); 1273 Spannable spannable = getSpannable(); 1274 // Remove the overage chips. 1275 if (recipients == null || recipients.length == 0) { 1276 Log.w(TAG, 1277 "We have recipients. Tt should not be possible to have zero RecipientChips."); 1278 mMoreChip = null; 1279 return; 1280 } 1281 mRemovedSpans = new ArrayList<RecipientChip>(); 1282 int totalReplaceStart = 0; 1283 int totalReplaceEnd = 0; 1284 for (int i = numRecipients - overage; i < recipients.length; i++) { 1285 mRemovedSpans.add(recipients[i]); 1286 if (i == numRecipients - overage) { 1287 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1288 } 1289 if (i == recipients.length - 1) { 1290 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1291 } 1292 if (mTemporaryRecipients != null && !mTemporaryRecipients.contains(recipients[i])) { 1293 recipients[i].storeChipStart(spannable.getSpanStart(recipients[i])); 1294 recipients[i].storeChipEnd(spannable.getSpanEnd(recipients[i])); 1295 } 1296 spannable.removeSpan(recipients[i]); 1297 } 1298 // TODO: why would these ever be backwards? 1299 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1300 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1301 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1302 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1303 text.replace(start, end, chipText); 1304 mMoreChip = moreSpan; 1305 } 1306 1307 /** 1308 * Replace the more chip, if it exists, with all of the recipient chips it had 1309 * replaced when the RecipientEditTextView gains focus. 1310 */ 1311 private void removeMoreChip() { 1312 if (mMoreChip != null) { 1313 Spannable span = getSpannable(); 1314 span.removeSpan(mMoreChip); 1315 mMoreChip = null; 1316 // Re-add the spans that were removed. 1317 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1318 // Recreate each removed span. 1319 Editable editable = getText(); 1320 for (RecipientChip chip : mRemovedSpans) { 1321 int chipStart = chip.getStoredChipStart(); 1322 int chipEnd; 1323 String token; 1324 if (chipStart == -1) { 1325 // Need to find the location of the chip, again. 1326 token = (String)mTokenizer.terminateToken(chip.getEntry().getDestination()); 1327 chipStart = editable.toString().indexOf(token); 1328 // -1 for the space! 1329 chipEnd = chipStart + token.length() - 1; 1330 } else { 1331 chipEnd = Math.min(editable.length(), chip.getStoredChipEnd()); 1332 } 1333 if (Log.isLoggable(TAG, Log.DEBUG) && chipEnd != chip.getStoredChipEnd()) { 1334 Log.d(TAG, 1335 "Unexpectedly, the chip ended after the end of the editable text. " 1336 + "Chip End " + chip.getStoredChipEnd() 1337 + "Editable length " + editable.length()); 1338 } 1339 // Only set the span if we found a matching token. 1340 if (chipStart != -1) { 1341 editable.setSpan(chip, chipStart, chipEnd, 1342 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1343 } 1344 } 1345 mRemovedSpans.clear(); 1346 } 1347 } 1348 } 1349 1350 /** 1351 * Show specified chip as selected. If the RecipientChip is just an email address, 1352 * selecting the chip will take the contents of the chip and place it at 1353 * the end of the RecipientEditTextView for inline editing. If the 1354 * RecipientChip is a complete contact, then selecting the chip 1355 * will change the background color of the chip, show the delete icon, 1356 * and a popup window with the address in use highlighted and any other 1357 * alternate addresses for the contact. 1358 * @param currentChip Chip to select. 1359 * @return A RecipientChip in the selected state or null if the chip 1360 * just contained an email address. 1361 */ 1362 public RecipientChip selectChip(RecipientChip currentChip) { 1363 if (currentChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1364 CharSequence text = currentChip.getValue(); 1365 Editable editable = getText(); 1366 removeChip(currentChip); 1367 editable.append(text); 1368 setCursorVisible(true); 1369 setSelection(editable.length()); 1370 return null; 1371 } else if (currentChip.getContactId() == RecipientEntry.GENERATED_CONTACT) { 1372 int start = getChipStart(currentChip); 1373 int end = getChipEnd(currentChip); 1374 getSpannable().removeSpan(currentChip); 1375 RecipientChip newChip; 1376 try { 1377 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1378 } catch (NullPointerException e) { 1379 Log.e(TAG, e.getMessage(), e); 1380 return null; 1381 } 1382 Editable editable = getText(); 1383 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1384 if (start == -1 || end == -1) { 1385 Log.d(TAG, "The chip being selected no longer exists but should."); 1386 } else { 1387 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1388 } 1389 newChip.setSelected(true); 1390 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1391 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1392 } 1393 showAddress(newChip, mAddressPopup, getWidth(), getContext()); 1394 setCursorVisible(false); 1395 return newChip; 1396 } else { 1397 int start = getChipStart(currentChip); 1398 int end = getChipEnd(currentChip); 1399 getSpannable().removeSpan(currentChip); 1400 RecipientChip newChip; 1401 try { 1402 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1403 } catch (NullPointerException e) { 1404 Log.e(TAG, e.getMessage(), e); 1405 return null; 1406 } 1407 Editable editable = getText(); 1408 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1409 if (start == -1 || end == -1) { 1410 Log.d(TAG, "The chip being selected no longer exists but should."); 1411 } else { 1412 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1413 } 1414 newChip.setSelected(true); 1415 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1416 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1417 } 1418 showAlternates(newChip, mAlternatesPopup, getWidth(), getContext()); 1419 setCursorVisible(false); 1420 return newChip; 1421 } 1422 } 1423 1424 1425 private void showAddress(final RecipientChip currentChip, final ListPopupWindow popup, 1426 int width, Context context) { 1427 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1428 int bottom = calculateOffsetFromBottom(line); 1429 // Align the alternates popup with the left side of the View, 1430 // regardless of the position of the chip tapped. 1431 popup.setWidth(width); 1432 popup.setAnchorView(this); 1433 popup.setVerticalOffset(bottom); 1434 popup.setAdapter(createSingleAddressAdapter(currentChip)); 1435 popup.setOnItemClickListener(new OnItemClickListener() { 1436 @Override 1437 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1438 unselectChip(currentChip); 1439 popup.dismiss(); 1440 } 1441 }); 1442 popup.show(); 1443 ListView listView = popup.getListView(); 1444 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1445 listView.setItemChecked(0, true); 1446 } 1447 1448 /** 1449 * Remove selection from this chip. Unselecting a RecipientChip will render 1450 * the chip without a delete icon and with an unfocused background. This 1451 * is called when the RecipientChip no longer has focus. 1452 */ 1453 public void unselectChip(RecipientChip chip) { 1454 int start = getChipStart(chip); 1455 int end = getChipEnd(chip); 1456 Editable editable = getText(); 1457 mSelectedChip = null; 1458 if (start == -1 || end == -1) { 1459 Log.e(TAG, "The chip being unselected no longer exists but should."); 1460 } else { 1461 getSpannable().removeSpan(chip); 1462 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1463 editable.removeSpan(chip); 1464 try { 1465 editable.setSpan(constructChipSpan(chip.getEntry(), start, false), start, end, 1466 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1467 } catch (NullPointerException e) { 1468 Log.e(TAG, e.getMessage(), e); 1469 } 1470 } 1471 setCursorVisible(true); 1472 setSelection(editable.length()); 1473 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1474 mAlternatesPopup.dismiss(); 1475 } 1476 } 1477 1478 1479 /** 1480 * Return whether this chip contains the position passed in. 1481 */ 1482 public boolean matchesChip(RecipientChip chip, int offset) { 1483 int start = getChipStart(chip); 1484 int end = getChipEnd(chip); 1485 if (start == -1 || end == -1) { 1486 return false; 1487 } 1488 return (offset >= start && offset <= end); 1489 } 1490 1491 1492 /** 1493 * Return whether a touch event was inside the delete target of 1494 * a selected chip. It is in the delete target if: 1495 * 1) the x and y points of the event are within the 1496 * delete assset. 1497 * 2) the point tapped would have caused a cursor to appear 1498 * right after the selected chip. 1499 * @return boolean 1500 */ 1501 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1502 // Figure out the bounds of this chip and whether or not 1503 // the user clicked in the X portion. 1504 return chip.isSelected() && offset == getChipEnd(chip); 1505 } 1506 1507 /** 1508 * Remove the chip and any text associated with it from the RecipientEditTextView. 1509 */ 1510 private void removeChip(RecipientChip chip) { 1511 Spannable spannable = getSpannable(); 1512 int spanStart = spannable.getSpanStart(chip); 1513 int spanEnd = spannable.getSpanEnd(chip); 1514 Editable text = getText(); 1515 int toDelete = spanEnd; 1516 boolean wasSelected = chip == mSelectedChip; 1517 // Clear that there is a selected chip before updating any text. 1518 if (wasSelected) { 1519 mSelectedChip = null; 1520 } 1521 // Always remove trailing spaces when removing a chip. 1522 while (toDelete >= 0 && toDelete < text.length() && text.charAt(toDelete) == ' ') { 1523 toDelete++; 1524 } 1525 spannable.removeSpan(chip); 1526 text.delete(spanStart, toDelete); 1527 if (wasSelected) { 1528 clearSelectedChip(); 1529 } 1530 } 1531 1532 /** 1533 * Replace this currently selected chip with a new chip 1534 * that uses the contact data provided. 1535 */ 1536 public void replaceChip(RecipientChip chip, RecipientEntry entry) { 1537 boolean wasSelected = chip == mSelectedChip; 1538 if (wasSelected) { 1539 mSelectedChip = null; 1540 } 1541 int start = getChipStart(chip); 1542 int end = getChipEnd(chip); 1543 getSpannable().removeSpan(chip); 1544 Editable editable = getText(); 1545 CharSequence chipText = createChip(entry, false); 1546 if (start == -1 || end == -1) { 1547 Log.e(TAG, "The chip to replace does not exist but should."); 1548 editable.insert(0, chipText); 1549 } else { 1550 // There may be a space to replace with this chip's new associated 1551 // space. Check for it. 1552 int toReplace = end; 1553 while (toReplace >= 0 && toReplace < editable.length() 1554 && editable.charAt(toReplace) == ' ') { 1555 toReplace++; 1556 } 1557 editable.replace(start, toReplace, chipText); 1558 } 1559 setCursorVisible(true); 1560 if (wasSelected) { 1561 clearSelectedChip(); 1562 } 1563 } 1564 1565 /** 1566 * Handle click events for a chip. When a selected chip receives a click 1567 * event, see if that event was in the delete icon. If so, delete it. 1568 * Otherwise, unselect the chip. 1569 */ 1570 public void onClick(RecipientChip chip, int offset, float x, float y) { 1571 if (chip.isSelected()) { 1572 if (isInDelete(chip, offset, x, y)) { 1573 removeChip(chip); 1574 } else { 1575 clearSelectedChip(); 1576 } 1577 } 1578 } 1579 1580 private boolean chipsPending() { 1581 return mPendingChipsCount > 0 || (mRemovedSpans != null && mRemovedSpans.size() > 0); 1582 } 1583 1584 @Override 1585 public void removeTextChangedListener(TextWatcher watcher) { 1586 mTextWatcher = null; 1587 super.removeTextChangedListener(watcher); 1588 } 1589 1590 private class RecipientTextWatcher implements TextWatcher { 1591 @Override 1592 public void afterTextChanged(Editable s) { 1593 // If the text has been set to null or empty, make sure we remove 1594 // all the spans we applied. 1595 if (TextUtils.isEmpty(s)) { 1596 // Remove all the chips spans. 1597 Spannable spannable = getSpannable(); 1598 RecipientChip[] chips = spannable.getSpans(0, getText().length(), 1599 RecipientChip.class); 1600 for (RecipientChip chip : chips) { 1601 spannable.removeSpan(chip); 1602 } 1603 if (mMoreChip != null) { 1604 spannable.removeSpan(mMoreChip); 1605 } 1606 return; 1607 } 1608 // Get whether there are any recipients pending addition to the 1609 // view. If there are, don't do anything in the text watcher. 1610 if (chipsPending()) { 1611 return; 1612 } 1613 if (mSelectedChip != null) { 1614 setCursorVisible(true); 1615 setSelection(getText().length()); 1616 clearSelectedChip(); 1617 } 1618 int length = s.length(); 1619 // Make sure there is content there to parse and that it is 1620 // not just the commit character. 1621 if (length > 1) { 1622 char last; 1623 int end = getSelectionEnd() == 0 ? 0 : getSelectionEnd() - 1; 1624 int len = length() - 1; 1625 if (end != len) { 1626 last = s.charAt(end); 1627 } else { 1628 last = s.charAt(len); 1629 } 1630 if (last == COMMIT_CHAR_SEMICOLON || last == COMMIT_CHAR_COMMA) { 1631 commitByCharacter(); 1632 } else if (last == COMMIT_CHAR_SPACE) { 1633 // Check if this is a valid email address. If it is, 1634 // commit it. 1635 String text = getText().toString(); 1636 int tokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 1637 String sub = text.substring(tokenStart, mTokenizer.findTokenEnd(text, 1638 tokenStart)); 1639 if (mValidator != null && mValidator.isValid(sub)) { 1640 commitByCharacter(); 1641 } 1642 } 1643 } 1644 } 1645 1646 @Override 1647 public void onTextChanged(CharSequence s, int start, int before, int count) { 1648 // Do nothing. 1649 } 1650 1651 @Override 1652 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 1653 } 1654 } 1655 1656 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 1657 private RecipientChip createFreeChip(RecipientEntry entry) { 1658 String displayText = entry.getDestination(); 1659 displayText = (String) mTokenizer.terminateToken(displayText); 1660 try { 1661 return constructChipSpan(entry, -1, false); 1662 } catch (NullPointerException e) { 1663 Log.e(TAG, e.getMessage(), e); 1664 return null; 1665 } 1666 } 1667 1668 @Override 1669 protected Void doInBackground(Void... params) { 1670 if (mIndividualReplacements != null) { 1671 mIndividualReplacements.cancel(true); 1672 } 1673 // For each chip in the list, look up the matching contact. 1674 // If there is a match, replace that chip with the matching 1675 // chip. 1676 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 1677 RecipientChip[] existingChips = getSpannable().getSpans(0, getText().length(), 1678 RecipientChip.class); 1679 for (int i = 0; i < existingChips.length; i++) { 1680 originalRecipients.add(existingChips[i]); 1681 } 1682 if (mRemovedSpans != null) { 1683 originalRecipients.addAll(mRemovedSpans); 1684 } 1685 String[] addresses = new String[originalRecipients.size()]; 1686 for (int i = 0; i < originalRecipients.size(); i++) { 1687 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1688 } 1689 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1690 .getMatchingRecipients(getContext(), addresses); 1691 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 1692 for (final RecipientChip temp : originalRecipients) { 1693 RecipientEntry entry = null; 1694 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1695 && getSpannable().getSpanStart(temp) != -1) { 1696 // Replace this. 1697 entry = createValidatedEntry(entries.get(tokenizeAddress(temp.getEntry() 1698 .getDestination()))); 1699 } 1700 if (entry != null) { 1701 replacements.add(createFreeChip(entry)); 1702 } else { 1703 replacements.add(temp); 1704 } 1705 } 1706 if (replacements != null && replacements.size() > 0) { 1707 mHandler.post(new Runnable() { 1708 @Override 1709 public void run() { 1710 SpannableStringBuilder text = new SpannableStringBuilder(getText() 1711 .toString()); 1712 Editable oldText = getText(); 1713 int start, end; 1714 int i = 0; 1715 for (RecipientChip chip : originalRecipients) { 1716 start = oldText.getSpanStart(chip); 1717 if (start != -1) { 1718 end = oldText.getSpanEnd(chip); 1719 text.removeSpan(chip); 1720 // Leave a spot for the space! 1721 text.setSpan(replacements.get(i), start, end, 1722 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1723 } 1724 i++; 1725 } 1726 Editable editable = getText(); 1727 editable.clear(); 1728 editable.insert(0, text); 1729 originalRecipients.clear(); 1730 } 1731 }); 1732 } 1733 return null; 1734 } 1735 } 1736 1737 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 1738 @SuppressWarnings("unchecked") 1739 @Override 1740 protected Void doInBackground(Object... params) { 1741 // For each chip in the list, look up the matching contact. 1742 // If there is a match, replace that chip with the matching 1743 // chip. 1744 final ArrayList<RecipientChip> originalRecipients = 1745 (ArrayList<RecipientChip>) params[0]; 1746 String[] addresses = new String[originalRecipients.size()]; 1747 for (int i = 0; i < originalRecipients.size(); i++) { 1748 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1749 } 1750 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1751 .getMatchingRecipients(getContext(), addresses); 1752 for (final RecipientChip temp : originalRecipients) { 1753 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1754 && getSpannable().getSpanStart(temp) != -1) { 1755 // Replace this. 1756 final RecipientEntry entry = createValidatedEntry(entries 1757 .get(tokenizeAddress(temp.getEntry().getDestination()))); 1758 if (entry != null) { 1759 mHandler.post(new Runnable() { 1760 @Override 1761 public void run() { 1762 replaceChip(temp, entry); 1763 } 1764 }); 1765 } 1766 } 1767 } 1768 return null; 1769 } 1770 } 1771 1772 @Override 1773 public boolean onDown(MotionEvent e) { 1774 return false; 1775 } 1776 1777 @Override 1778 public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { 1779 // Do nothing. 1780 return false; 1781 } 1782 1783 @Override 1784 public void onLongPress(MotionEvent event) { 1785 if (mSelectedChip != null) { 1786 return; 1787 } 1788 float x = event.getX(); 1789 float y = event.getY(); 1790 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 1791 RecipientChip currentChip = findChip(offset); 1792 if (currentChip != null) { 1793 // Copy the selected chip email address. 1794 showCopyDialog(currentChip.getEntry().getDestination()); 1795 } 1796 } 1797 1798 private void showCopyDialog(final String address) { 1799 mCopyAddress = address; 1800 mCopyDialog = new Dialog(getContext()); 1801 mCopyDialog.setTitle(address); 1802 mCopyDialog.setContentView(mCopyViewRes); 1803 mCopyDialog.setCancelable(true); 1804 mCopyDialog.setCanceledOnTouchOutside(true); 1805 mCopyDialog.findViewById(android.R.id.button1).setOnClickListener(this); 1806 mCopyDialog.setOnDismissListener(this); 1807 mCopyDialog.show(); 1808 } 1809 1810 @Override 1811 public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) { 1812 // Do nothing. 1813 return false; 1814 } 1815 1816 @Override 1817 public void onShowPress(MotionEvent e) { 1818 // Do nothing. 1819 } 1820 1821 @Override 1822 public boolean onSingleTapUp(MotionEvent e) { 1823 // Do nothing. 1824 return false; 1825 } 1826 1827 @Override 1828 public void onDismiss(DialogInterface dialog) { 1829 mCopyAddress = null; 1830 mCopyDialog = null; 1831 } 1832 1833 @Override 1834 public void onClick(View v) { 1835 // Copy this to the clipboard. 1836 ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService( 1837 Context.CLIPBOARD_SERVICE); 1838 clipboard.setPrimaryClip(ClipData.newPlainText("", mCopyAddress)); 1839 mCopyDialog.dismiss(); 1840 } 1841} 1842