RecipientEditTextView.java revision d5d86aafdbb1487ade3ecf70b92c00d20b94f9c8
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 super.onFocusChanged(hasFocus, direction, previous); 288 if (!hasFocus) { 289 shrink(); 290 } else { 291 expand(); 292 scrollLineIntoView(getLineCount()); 293 } 294 } 295 296 @Override 297 public void performValidation() { 298 // Do nothing. Chips handles its own validation. 299 } 300 301 private void shrink() { 302 if (mSelectedChip != null) { 303 clearSelectedChip(); 304 } else { 305 // Reset any pending chips as they would have been handled 306 // when the field lost focus. 307 if (mPendingChipsCount > 0) { 308 postHandlePendingChips(); 309 } else { 310 Editable editable = getText(); 311 int end = getSelectionEnd(); 312 int start = mTokenizer.findTokenStart(editable, end); 313 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 314 if ((chips == null || chips.length == 0)) { 315 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 316 // In the middle of chip; treat this as an edit 317 // and commit the whole token. 318 if (whatEnd != getSelectionEnd()) { 319 handleEdit(start, whatEnd); 320 } else { 321 commitChip(start, end, editable); 322 } 323 } 324 } 325 mHandler.post(mAddTextWatcher); 326 } 327 createMoreChip(); 328 } 329 330 private void expand() { 331 removeMoreChip(); 332 setCursorVisible(true); 333 Editable text = getText(); 334 setSelection(text != null && text.length() > 0 ? text.length() : 0); 335 // If there are any temporary chips, try replacing them now that the user 336 // has expanded the field. 337 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0) { 338 new RecipientReplacementTask().execute(); 339 mTemporaryRecipients = null; 340 } 341 } 342 343 private CharSequence ellipsizeText(CharSequence text, TextPaint paint, float maxWidth) { 344 paint.setTextSize(mChipFontSize); 345 if (maxWidth <= 0 && Log.isLoggable(TAG, Log.DEBUG)) { 346 Log.d(TAG, "Max width is negative: " + maxWidth); 347 } 348 return TextUtils.ellipsize(text, paint, maxWidth, 349 TextUtils.TruncateAt.END); 350 } 351 352 private Bitmap createSelectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 353 // Ellipsize the text so that it takes AT MOST the entire width of the 354 // autocomplete text entry area. Make sure to leave space for padding 355 // on the sides. 356 int height = (int) mChipHeight; 357 int deleteWidth = height; 358 CharSequence ellipsizedText = ellipsizeText(contact.getDisplayName(), paint, 359 calculateAvailableWidth(true) - deleteWidth); 360 361 // Make sure there is a minimum chip width so the user can ALWAYS 362 // tap a chip without difficulty. 363 int width = Math.max(deleteWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 364 ellipsizedText.length())) 365 + (mChipPadding * 2) + deleteWidth); 366 367 // Create the background of the chip. 368 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 369 Canvas canvas = new Canvas(tmpBitmap); 370 if (mChipBackgroundPressed != null) { 371 mChipBackgroundPressed.setBounds(0, 0, width, height); 372 mChipBackgroundPressed.draw(canvas); 373 paint.setColor(sSelectedTextColor); 374 // Align the display text with where the user enters text. 375 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, height 376 - Math.abs(height - mChipFontSize)/2, paint); 377 // Make the delete a square. 378 mChipDelete.setBounds(width - deleteWidth, 0, width, height); 379 mChipDelete.draw(canvas); 380 } else { 381 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 382 } 383 return tmpBitmap; 384 } 385 386 387 /** 388 * Get the background drawable for a RecipientChip. 389 */ 390 public Drawable getChipBackground(RecipientEntry contact) { 391 return (mValidator != null && mValidator.isValid(contact.getDestination())) ? 392 mChipBackground : mInvalidChipBackground; 393 } 394 395 private Bitmap createUnselectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 396 // Ellipsize the text so that it takes AT MOST the entire width of the 397 // autocomplete text entry area. Make sure to leave space for padding 398 // on the sides. 399 int height = (int) mChipHeight; 400 int iconWidth = height; 401 String displayText = 402 !TextUtils.isEmpty(contact.getDisplayName()) ? contact.getDisplayName() : 403 !TextUtils.isEmpty(contact.getDestination()) ? contact.getDestination() : ""; 404 CharSequence ellipsizedText = ellipsizeText(displayText, paint, 405 calculateAvailableWidth(false) - iconWidth); 406 // Make sure there is a minimum chip width so the user can ALWAYS 407 // tap a chip without difficulty. 408 int width = Math.max(iconWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 409 ellipsizedText.length())) 410 + (mChipPadding * 2) + iconWidth); 411 412 // Create the background of the chip. 413 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 414 Canvas canvas = new Canvas(tmpBitmap); 415 Drawable background = getChipBackground(contact); 416 if (background != null) { 417 background.setBounds(0, 0, width, height); 418 background.draw(canvas); 419 420 // Don't draw photos for recipients that have been typed in. 421 if (contact.getContactId() != RecipientEntry.INVALID_CONTACT) { 422 byte[] photoBytes = contact.getPhotoBytes(); 423 // There may not be a photo yet if anything but the first contact address 424 // was selected. 425 if (photoBytes == null && contact.getPhotoThumbnailUri() != null) { 426 // TODO: cache this in the recipient entry? 427 ((BaseRecipientAdapter) getAdapter()).fetchPhoto(contact, contact 428 .getPhotoThumbnailUri()); 429 photoBytes = contact.getPhotoBytes(); 430 } 431 432 Bitmap photo; 433 if (photoBytes != null) { 434 photo = BitmapFactory.decodeByteArray(photoBytes, 0, photoBytes.length); 435 } else { 436 // TODO: can the scaled down default photo be cached? 437 photo = mDefaultContactPhoto; 438 } 439 // Draw the photo on the left side. 440 Matrix matrix = new Matrix(); 441 RectF src = new RectF(0, 0, photo.getWidth(), photo.getHeight()); 442 RectF dst = new RectF(width - iconWidth, 0, width, height); 443 matrix.setRectToRect(src, dst, Matrix.ScaleToFit.CENTER); 444 canvas.drawBitmap(photo, matrix, paint); 445 } else { 446 // Don't leave any space for the icon. It isn't being drawn. 447 iconWidth = 0; 448 } 449 450 // Align the display text with where the user enters text. 451 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 452 height - Math.abs(height - mChipFontSize) / 2, paint); 453 } else { 454 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 455 } 456 return tmpBitmap; 457 } 458 459 public RecipientChip constructChipSpan(RecipientEntry contact, int offset, boolean pressed) 460 throws NullPointerException { 461 if (mChipBackground == null) { 462 throw new NullPointerException( 463 "Unable to render any chips as setChipDimensions was not called."); 464 } 465 Layout layout = getLayout(); 466 467 TextPaint paint = getPaint(); 468 float defaultSize = paint.getTextSize(); 469 int defaultColor = paint.getColor(); 470 471 Bitmap tmpBitmap; 472 if (pressed) { 473 tmpBitmap = createSelectedChip(contact, paint, layout); 474 475 } else { 476 tmpBitmap = createUnselectedChip(contact, paint, layout); 477 } 478 479 // Pass the full text, un-ellipsized, to the chip. 480 Drawable result = new BitmapDrawable(getResources(), tmpBitmap); 481 result.setBounds(0, 0, tmpBitmap.getWidth(), tmpBitmap.getHeight()); 482 RecipientChip recipientChip = new RecipientChip(result, contact, offset); 483 // Return text to the original size. 484 paint.setTextSize(defaultSize); 485 paint.setColor(defaultColor); 486 return recipientChip; 487 } 488 489 /** 490 * Calculate the bottom of the line the chip will be located on using: 491 * 1) which line the chip appears on 492 * 2) the height of a chip 493 * 3) padding built into the edit text view 494 */ 495 private int calculateOffsetFromBottom(int line) { 496 // Line offsets start at zero. 497 int actualLine = getLineCount() - (line + 1); 498 return -((actualLine * ((int)mChipHeight) + getPaddingBottom()) + getPaddingTop()); 499 } 500 501 /** 502 * Get the max amount of space a chip can take up. The formula takes into 503 * account the width of the EditTextView, any view padding, and padding 504 * that will be added to the chip. 505 */ 506 private float calculateAvailableWidth(boolean pressed) { 507 return getWidth() - getPaddingLeft() - getPaddingRight() - (mChipPadding * 2); 508 } 509 510 /** 511 * Set all chip dimensions and resources. This has to be done from the 512 * application as this is a static library. 513 * @param chipBackground 514 * @param chipBackgroundPressed 515 * @param invalidChip 516 * @param chipDelete 517 * @param defaultContact 518 * @param moreResource 519 * @param alternatesLayout 520 * @param chipHeight 521 * @param padding Padding around the text in a chip 522 * @param chipFontSize 523 * @param copyViewRes 524 */ 525 public void setChipDimensions(Drawable chipBackground, Drawable chipBackgroundPressed, 526 Drawable invalidChip, Drawable chipDelete, Bitmap defaultContact, int moreResource, 527 int alternatesLayout, float chipHeight, float padding, 528 float chipFontSize, int copyViewRes) { 529 mChipBackground = chipBackground; 530 mChipBackgroundPressed = chipBackgroundPressed; 531 mChipDelete = chipDelete; 532 mChipPadding = (int) padding; 533 mAlternatesLayout = alternatesLayout; 534 mDefaultContactPhoto = defaultContact; 535 mMoreItem = (TextView) LayoutInflater.from(getContext()).inflate(moreResource, null); 536 mChipHeight = chipHeight; 537 mChipFontSize = chipFontSize; 538 mInvalidChipBackground = invalidChip; 539 mCopyViewRes = copyViewRes; 540 } 541 542 /** 543 * Set whether to shrink the recipients field such that at most 544 * one line of recipients chips are shown when the field loses 545 * focus. By default, the number of displayed recipients will be 546 * limited and a "more" chip will be shown when focus is lost. 547 * @param shrink 548 */ 549 public void setOnFocusListShrinkRecipients(boolean shrink) { 550 mShouldShrink = shrink; 551 } 552 553 @Override 554 public void onSizeChanged(int width, int height, int oldw, int oldh) { 555 super.onSizeChanged(width, height, oldw, oldh); 556 if (width != 0 && height != 0 && mPendingChipsCount > 0) { 557 postHandlePendingChips(); 558 } 559 // Try to find the scroll view parent, if it exists. 560 if (mScrollView == null && !mTried) { 561 ViewParent parent = getParent(); 562 while (parent != null && !(parent instanceof ScrollView)) { 563 parent = parent.getParent(); 564 } 565 if (parent != null) { 566 mScrollView = (ScrollView) parent; 567 } 568 mTried = true; 569 } 570 } 571 572 private void postHandlePendingChips() { 573 mHandler.removeCallbacks(mHandlePendingChips); 574 mHandler.post(mHandlePendingChips); 575 } 576 577 private void handlePendingChips() { 578 if (mPendingChipsCount <= 0) { 579 return; 580 } 581 if (getWidth() <= 0) { 582 // The widget has not been sized yet. 583 // This will be called as a result of onSizeChanged 584 // at a later point. 585 return; 586 } 587 synchronized (mPendingChips) { 588 mTemporaryRecipients = new ArrayList<RecipientChip>(mPendingChipsCount); 589 Editable editable = getText(); 590 // Tokenize! 591 for (int i = 0; i < mPendingChips.size(); i++) { 592 String current = mPendingChips.get(i); 593 int tokenStart = editable.toString().indexOf(current); 594 int tokenEnd = tokenStart + current.length(); 595 if (tokenStart >= 0) { 596 // When we have a valid token, include it with the token 597 // to the left. 598 if (tokenEnd < editable.length() - 2 599 && editable.charAt(tokenEnd) == COMMIT_CHAR_COMMA) { 600 tokenEnd++; 601 } 602 createReplacementChip(tokenStart, tokenEnd, editable); 603 } 604 mPendingChipsCount--; 605 } 606 sanitizeSpannable(); 607 if (mTemporaryRecipients != null 608 && mTemporaryRecipients.size() <= RecipientAlternatesAdapter.MAX_LOOKUPS) { 609 if (hasFocus() || mTemporaryRecipients.size() < CHIP_LIMIT) { 610 new RecipientReplacementTask().execute(); 611 mTemporaryRecipients = null; 612 } else { 613 // Create the "more" chip 614 mIndividualReplacements = new IndividualReplacementTask(); 615 mIndividualReplacements.execute(new ArrayList<RecipientChip>( 616 mTemporaryRecipients.subList(0, CHIP_LIMIT))); 617 618 createMoreChip(); 619 } 620 } else { 621 // There are too many recipients to look up, so just fall back 622 // to 623 // showing addresses for all of them. 624 mTemporaryRecipients = null; 625 createMoreChip(); 626 } 627 mPendingChipsCount = 0; 628 mPendingChips.clear(); 629 } 630 } 631 632 /** 633 * Remove any characters after the last valid chip. 634 */ 635 private void sanitizeSpannable() { 636 // Find the last chip; eliminate any commit characters after it. 637 RecipientChip[] chips = getRecipients(); 638 if (chips != null && chips.length > 0) { 639 int end; 640 ImageSpan lastSpan; 641 if (mMoreChip != null) { 642 lastSpan = mMoreChip; 643 } else { 644 lastSpan = chips[chips.length - 1]; 645 } 646 end = getSpannable().getSpanEnd(lastSpan); 647 Editable editable = getText(); 648 int length = editable.length(); 649 if (length > end) { 650 // See what characters occur after that and eliminate them. 651 if (Log.isLoggable(TAG, Log.DEBUG)) { 652 Log.d(TAG, "There were extra characters after the last tokenizable entry." 653 + editable); 654 } 655 editable.delete(end + 1, length); 656 } 657 } 658 } 659 660 /** 661 * Create a chip that represents just the email address of a recipient. At some later 662 * point, this chip will be attached to a real contact entry, if one exists. 663 */ 664 private void createReplacementChip(int tokenStart, int tokenEnd, Editable editable) { 665 if (alreadyHasChip(tokenStart, tokenEnd)) { 666 // There is already a chip present at this location. 667 // Don't recreate it. 668 return; 669 } 670 String token = editable.toString().substring(tokenStart, tokenEnd); 671 int commitCharIndex = token.trim().lastIndexOf(COMMIT_CHAR_COMMA); 672 if (commitCharIndex == token.length() - 1) { 673 token = token.substring(0, token.length() - 1); 674 } 675 RecipientEntry entry = createTokenizedEntry(token); 676 if (entry != null) { 677 String destText = entry.getDestination(); 678 destText = (String) mTokenizer.terminateToken(destText); 679 // Always leave a blank space at the end of a chip. 680 int textLength = destText.length() - 1; 681 SpannableString chipText = new SpannableString(destText); 682 int end = getSelectionEnd(); 683 int start = mTokenizer.findTokenStart(getText(), end); 684 RecipientChip chip = null; 685 try { 686 chip = constructChipSpan(entry, start, false); 687 chipText.setSpan(chip, 0, textLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 688 } catch (NullPointerException e) { 689 Log.e(TAG, e.getMessage(), e); 690 } 691 692 editable.replace(tokenStart, tokenEnd, chipText); 693 // Add this chip to the list of entries "to replace" 694 if (chip != null) { 695 chip.setOriginalText(chipText.toString()); 696 mTemporaryRecipients.add(chip); 697 } 698 } 699 } 700 701 private RecipientEntry createTokenizedEntry(String token) { 702 if (TextUtils.isEmpty(token)) { 703 return null; 704 } 705 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(token); 706 String display = null; 707 if (isValid(token) && tokens != null && tokens.length > 0) { 708 // If we can get a name from tokenizing, then generate an entry from 709 // this. 710 display = tokens[0].getName(); 711 if (!TextUtils.isEmpty(display)) { 712 return RecipientEntry.constructGeneratedEntry(display, token); 713 } else { 714 display = tokens[0].getAddress(); 715 if (!TextUtils.isEmpty(display)) { 716 return RecipientEntry.constructFakeEntry(display); 717 } 718 } 719 } 720 // Unable to validate the token or to create a valid token from it. 721 // Just create a chip the user can edit. 722 if (mValidator != null && !mValidator.isValid(token)) { 723 // Try fixing up the entry using the validator. 724 token = mValidator.fixText(token).toString(); 725 if (!TextUtils.isEmpty(token)) { 726 // protect against the case of a validator with a null domain, 727 // which doesn't add a domain to the token 728 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(token); 729 if (tokenized.length > 0) { 730 token = tokenized[0].getAddress(); 731 } 732 } 733 } 734 // Otherwise, fallback to just creating an editable email address chip. 735 return RecipientEntry.constructFakeEntry(token); 736 } 737 738 private boolean isValid(String text) { 739 return mValidator == null ? true : mValidator.isValid(text); 740 } 741 742 private String tokenizeAddress(String destination) { 743 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(destination); 744 if (tokens != null && tokens.length > 0) { 745 return tokens[0].getAddress(); 746 } 747 return destination; 748 } 749 750 @Override 751 public void setTokenizer(Tokenizer tokenizer) { 752 mTokenizer = tokenizer; 753 super.setTokenizer(mTokenizer); 754 } 755 756 @Override 757 public void setValidator(Validator validator) { 758 mValidator = validator; 759 super.setValidator(validator); 760 } 761 762 /** 763 * We cannot use the default mechanism for replaceText. Instead, 764 * we override onItemClickListener so we can get all the associated 765 * contact information including display text, address, and id. 766 */ 767 @Override 768 protected void replaceText(CharSequence text) { 769 return; 770 } 771 772 /** 773 * Dismiss any selected chips when the back key is pressed. 774 */ 775 @Override 776 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 777 if (keyCode == KeyEvent.KEYCODE_BACK) { 778 clearSelectedChip(); 779 } 780 return super.onKeyPreIme(keyCode, event); 781 } 782 783 /** 784 * Monitor key presses in this view to see if the user types 785 * any commit keys, which consist of ENTER, TAB, or DPAD_CENTER. 786 * If the user has entered text that has contact matches and types 787 * a commit key, create a chip from the topmost matching contact. 788 * If the user has entered text that has no contact matches and types 789 * a commit key, then create a chip from the text they have entered. 790 */ 791 @Override 792 public boolean onKeyUp(int keyCode, KeyEvent event) { 793 switch (keyCode) { 794 case KeyEvent.KEYCODE_ENTER: 795 case KeyEvent.KEYCODE_DPAD_CENTER: 796 if (event.hasNoModifiers()) { 797 if (commitDefault()) { 798 return true; 799 } 800 if (mSelectedChip != null) { 801 clearSelectedChip(); 802 return true; 803 } else if (focusNext()) { 804 return true; 805 } 806 } 807 break; 808 case KeyEvent.KEYCODE_TAB: 809 if (event.hasNoModifiers()) { 810 if (mSelectedChip != null) { 811 clearSelectedChip(); 812 } else { 813 commitDefault(); 814 } 815 if (focusNext()) { 816 return true; 817 } 818 } 819 } 820 return super.onKeyUp(keyCode, event); 821 } 822 823 private boolean focusNext() { 824 View next = focusSearch(View.FOCUS_DOWN); 825 if (next != null) { 826 next.requestFocus(); 827 return true; 828 } 829 return false; 830 } 831 832 /** 833 * Create a chip from the default selection. If the popup is showing, the 834 * default is the first item in the popup suggestions list. Otherwise, it is 835 * whatever the user had typed in. End represents where the the tokenizer 836 * should search for a token to turn into a chip. 837 * @return If a chip was created from a real contact. 838 */ 839 private boolean commitDefault() { 840 Editable editable = getText(); 841 int end = getSelectionEnd(); 842 int start = mTokenizer.findTokenStart(editable, end); 843 844 if (shouldCreateChip(start, end)) { 845 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 846 // In the middle of chip; treat this as an edit 847 // and commit the whole token. 848 if (whatEnd != getSelectionEnd()) { 849 handleEdit(start, whatEnd); 850 return true; 851 } 852 return commitChip(start, end , editable); 853 } 854 return false; 855 } 856 857 private void commitByCharacter() { 858 Editable editable = getText(); 859 int end = getSelectionEnd(); 860 int start = mTokenizer.findTokenStart(editable, end); 861 if (shouldCreateChip(start, end)) { 862 commitChip(start, end, editable); 863 } 864 setSelection(getText().length()); 865 } 866 867 private boolean commitChip(int start, int end, Editable editable) { 868 if (getAdapter().getCount() > 0 && enoughToFilter()) { 869 // choose the first entry. 870 submitItemAtPosition(0); 871 dismissDropDown(); 872 return true; 873 } else { 874 int tokenEnd = mTokenizer.findTokenEnd(editable, start); 875 String text = editable.toString().substring(start, tokenEnd).trim(); 876 clearComposingText(); 877 if (text != null && text.length() > 0 && !text.equals(" ")) { 878 RecipientEntry entry = createTokenizedEntry(text); 879 if (entry != null) { 880 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 881 CharSequence chipText = createChip(entry, false); 882 editable.replace(start, end, chipText); 883 } 884 dismissDropDown(); 885 return true; 886 } 887 } 888 return false; 889 } 890 891 private boolean shouldCreateChip(int start, int end) { 892 return hasFocus() && enoughToFilter() && !alreadyHasChip(start, end); 893 } 894 895 private boolean alreadyHasChip(int start, int end) { 896 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 897 if ((chips == null || chips.length == 0)) { 898 return false; 899 } 900 return true; 901 } 902 903 private void handleEdit(int start, int end) { 904 // This is in the middle of a chip, so select out the whole chip 905 // and commit it. 906 Editable editable = getText(); 907 setSelection(end); 908 String text = getText().toString().substring(start, end); 909 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 910 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 911 CharSequence chipText = createChip(entry, false); 912 editable.replace(start, getSelectionEnd(), chipText); 913 dismissDropDown(); 914 } 915 916 /** 917 * If there is a selected chip, delegate the key events 918 * to the selected chip. 919 */ 920 @Override 921 public boolean onKeyDown(int keyCode, KeyEvent event) { 922 if (mSelectedChip != null && keyCode == KeyEvent.KEYCODE_DEL) { 923 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 924 mAlternatesPopup.dismiss(); 925 } 926 removeChip(mSelectedChip); 927 } 928 929 if (keyCode == KeyEvent.KEYCODE_ENTER && event.hasNoModifiers()) { 930 return true; 931 } 932 933 return super.onKeyDown(keyCode, event); 934 } 935 936 private Spannable getSpannable() { 937 return getText(); 938 } 939 940 private int getChipStart(RecipientChip chip) { 941 return getSpannable().getSpanStart(chip); 942 } 943 944 private int getChipEnd(RecipientChip chip) { 945 return getSpannable().getSpanEnd(chip); 946 } 947 948 /** 949 * Instead of filtering on the entire contents of the edit box, 950 * this subclass method filters on the range from 951 * {@link Tokenizer#findTokenStart} to {@link #getSelectionEnd} 952 * if the length of that range meets or exceeds {@link #getThreshold} 953 * and makes sure that the range is not already a Chip. 954 */ 955 @Override 956 protected void performFiltering(CharSequence text, int keyCode) { 957 if (enoughToFilter()) { 958 int end = getSelectionEnd(); 959 int start = mTokenizer.findTokenStart(text, end); 960 // If this is a RecipientChip, don't filter 961 // on its contents. 962 Spannable span = getSpannable(); 963 RecipientChip[] chips = span.getSpans(start, end, RecipientChip.class); 964 if (chips != null && chips.length > 0) { 965 return; 966 } 967 } 968 super.performFiltering(text, keyCode); 969 } 970 971 private void clearSelectedChip() { 972 if (mSelectedChip != null) { 973 unselectChip(mSelectedChip); 974 mSelectedChip = null; 975 } 976 setCursorVisible(true); 977 } 978 979 /** 980 * Monitor touch events in the RecipientEditTextView. 981 * If the view does not have focus, any tap on the view 982 * will just focus the view. If the view has focus, determine 983 * if the touch target is a recipient chip. If it is and the chip 984 * is not selected, select it and clear any other selected chips. 985 * If it isn't, then select that chip. 986 */ 987 @Override 988 public boolean onTouchEvent(MotionEvent event) { 989 if (!isFocused()) { 990 // Ignore any chip taps until this view is focused. 991 return super.onTouchEvent(event); 992 } 993 994 boolean handled = super.onTouchEvent(event); 995 int action = event.getAction(); 996 boolean chipWasSelected = false; 997 if (action == MotionEvent.ACTION_DOWN && mSelectedChip == null) { 998 mGestureDetector.onTouchEvent(event); 999 } 1000 if (mCopyDialog == null && action == MotionEvent.ACTION_UP) { 1001 float x = event.getX(); 1002 float y = event.getY(); 1003 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 1004 RecipientChip currentChip = findChip(offset); 1005 if (currentChip != null) { 1006 if (action == MotionEvent.ACTION_UP) { 1007 if (mSelectedChip != null && mSelectedChip != currentChip) { 1008 clearSelectedChip(); 1009 mSelectedChip = selectChip(currentChip); 1010 } else if (mSelectedChip == null) { 1011 // Selection may have moved due to the tap event, 1012 // but make sure we correctly reset selection to the 1013 // end so that any unfinished chips are committed. 1014 setSelection(getText().length()); 1015 commitDefault(); 1016 mSelectedChip = selectChip(currentChip); 1017 } else { 1018 onClick(mSelectedChip, offset, x, y); 1019 } 1020 } 1021 chipWasSelected = true; 1022 handled = true; 1023 } 1024 } 1025 if (action == MotionEvent.ACTION_UP && !chipWasSelected) { 1026 clearSelectedChip(); 1027 } 1028 return handled; 1029 } 1030 1031 private void scrollLineIntoView(int line) { 1032 if (mScrollView != null) { 1033 mScrollView.scrollBy(0, calculateOffsetFromBottom(line)); 1034 } 1035 } 1036 1037 private void showAlternates(RecipientChip currentChip, ListPopupWindow alternatesPopup, 1038 int width, Context context) { 1039 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1040 int bottom = calculateOffsetFromBottom(line); 1041 // Align the alternates popup with the left side of the View, 1042 // regardless of the position of the chip tapped. 1043 alternatesPopup.setWidth(width); 1044 alternatesPopup.setAnchorView(this); 1045 alternatesPopup.setVerticalOffset(bottom); 1046 alternatesPopup.setAdapter(createAlternatesAdapter(currentChip)); 1047 alternatesPopup.setOnItemClickListener(mAlternatesListener); 1048 alternatesPopup.show(); 1049 ListView listView = alternatesPopup.getListView(); 1050 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1051 // Checked item would be -1 if the adapter has not 1052 // loaded the view that should be checked yet. The 1053 // variable will be set correctly when onCheckedItemChanged 1054 // is called in a separate thread. 1055 if (mCheckedItem != -1) { 1056 listView.setItemChecked(mCheckedItem, true); 1057 mCheckedItem = -1; 1058 } 1059 } 1060 1061 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 1062 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 1063 mAlternatesLayout, this); 1064 } 1065 1066 private ListAdapter createSingleAddressAdapter(RecipientChip currentChip) { 1067 return new SingleRecipientArrayAdapter(getContext(), mAlternatesLayout, currentChip 1068 .getEntry()); 1069 } 1070 1071 @Override 1072 public void onCheckedItemChanged(int position) { 1073 ListView listView = mAlternatesPopup.getListView(); 1074 if (listView != null && listView.getCheckedItemCount() == 0) { 1075 listView.setItemChecked(position, true); 1076 } else { 1077 mCheckedItem = position; 1078 } 1079 } 1080 1081 // TODO: This algorithm will need a lot of tweaking after more people have used 1082 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 1083 // what comes before the finger. 1084 private int putOffsetInRange(int o) { 1085 int offset = o; 1086 Editable text = getText(); 1087 int length = text.length(); 1088 // Remove whitespace from end to find "real end" 1089 int realLength = length; 1090 for (int i = length - 1; i >= 0; i--) { 1091 if (text.charAt(i) == ' ') { 1092 realLength--; 1093 } else { 1094 break; 1095 } 1096 } 1097 1098 // If the offset is beyond or at the end of the text, 1099 // leave it alone. 1100 if (offset >= realLength) { 1101 return offset; 1102 } 1103 Editable editable = getText(); 1104 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 1105 // Keep walking backward! 1106 offset--; 1107 } 1108 return offset; 1109 } 1110 1111 private int findText(Editable text, int offset) { 1112 if (text.charAt(offset) != ' ') { 1113 return offset; 1114 } 1115 return -1; 1116 } 1117 1118 private RecipientChip findChip(int offset) { 1119 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1120 // Find the chip that contains this offset. 1121 for (int i = 0; i < chips.length; i++) { 1122 RecipientChip chip = chips[i]; 1123 int start = getChipStart(chip); 1124 int end = getChipEnd(chip); 1125 if (offset >= start && offset <= end) { 1126 return chip; 1127 } 1128 } 1129 return null; 1130 } 1131 1132 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 1133 String displayText = entry.getDestination(); 1134 displayText = (String) mTokenizer.terminateToken(displayText); 1135 // Always leave a blank space at the end of a chip. 1136 int textLength = displayText.length()-1; 1137 SpannableString chipText = new SpannableString(displayText); 1138 int end = getSelectionEnd(); 1139 int start = mTokenizer.findTokenStart(getText(), end); 1140 try { 1141 RecipientChip chip = constructChipSpan(entry, start, pressed); 1142 chipText.setSpan(chip, 0, textLength, 1143 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1144 chip.setOriginalText(chipText.toString()); 1145 } catch (NullPointerException e) { 1146 Log.e(TAG, e.getMessage(), e); 1147 return null; 1148 } 1149 1150 return chipText; 1151 } 1152 1153 /** 1154 * When an item in the suggestions list has been clicked, create a chip from the 1155 * contact information of the selected item. 1156 */ 1157 @Override 1158 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1159 submitItemAtPosition(position); 1160 } 1161 1162 private void submitItemAtPosition(int position) { 1163 RecipientEntry entry = createValidatedEntry( 1164 (RecipientEntry)getAdapter().getItem(position)); 1165 if (entry == null) { 1166 return; 1167 } 1168 clearComposingText(); 1169 1170 int end = getSelectionEnd(); 1171 int start = mTokenizer.findTokenStart(getText(), end); 1172 1173 Editable editable = getText(); 1174 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1175 CharSequence chip = createChip(entry, false); 1176 if (chip != null) { 1177 editable.replace(start, end, chip); 1178 } 1179 } 1180 1181 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1182 if (item == null) { 1183 return null; 1184 } 1185 final RecipientEntry entry; 1186 // If the display name and the address are the same, or if this is a 1187 // valid contact, but the destination is invalid, then make this a fake 1188 // recipient that is editable. 1189 String destination = item.getDestination(); 1190 if (TextUtils.isEmpty(item.getDisplayName()) 1191 || TextUtils.equals(item.getDisplayName(), destination) 1192 || (mValidator != null && !mValidator.isValid(destination))) { 1193 entry = RecipientEntry.constructFakeEntry(destination); 1194 } else { 1195 entry = item; 1196 } 1197 return entry; 1198 } 1199 1200 /** Returns a collection of contact Id for each chip inside this View. */ 1201 /* package */ Collection<Long> getContactIds() { 1202 final Set<Long> result = new HashSet<Long>(); 1203 RecipientChip[] chips = getRecipients(); 1204 if (chips != null) { 1205 for (RecipientChip chip : chips) { 1206 result.add(chip.getContactId()); 1207 } 1208 } 1209 return result; 1210 } 1211 1212 private RecipientChip[] getRecipients() { 1213 return getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1214 } 1215 1216 private RecipientChip[] getSortedRecipients() { 1217 ArrayList<RecipientChip> recipientsList = new ArrayList<RecipientChip>(Arrays 1218 .asList(getRecipients())); 1219 final Spannable spannable = getSpannable(); 1220 Collections.sort(recipientsList, new Comparator<RecipientChip>() { 1221 1222 @Override 1223 public int compare(RecipientChip first, RecipientChip second) { 1224 int firstStart = spannable.getSpanStart(first); 1225 int secondStart = spannable.getSpanStart(second); 1226 if (firstStart < secondStart) { 1227 return -1; 1228 } else if (firstStart > secondStart) { 1229 return 1; 1230 } else { 1231 return 0; 1232 } 1233 } 1234 }); 1235 return recipientsList.toArray(new RecipientChip[recipientsList.size()]); 1236 } 1237 1238 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1239 /* package */ Collection<Long> getDataIds() { 1240 final Set<Long> result = new HashSet<Long>(); 1241 RecipientChip [] chips = getRecipients(); 1242 if (chips != null) { 1243 for (RecipientChip chip : chips) { 1244 result.add(chip.getDataId()); 1245 } 1246 } 1247 return result; 1248 } 1249 1250 1251 @Override 1252 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1253 return false; 1254 } 1255 1256 @Override 1257 public void onDestroyActionMode(ActionMode mode) { 1258 } 1259 1260 @Override 1261 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1262 return false; 1263 } 1264 1265 /** 1266 * No chips are selectable. 1267 */ 1268 @Override 1269 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1270 return false; 1271 } 1272 1273 /** 1274 * Create the more chip. The more chip is text that replaces any chips that 1275 * do not fit in the pre-defined available space when the 1276 * RecipientEditTextView loses focus. 1277 */ 1278 private void createMoreChip() { 1279 if (!mShouldShrink) { 1280 return; 1281 } 1282 1283 ImageSpan[] tempMore = getSpannable().getSpans(0, getText().length(), MoreImageSpan.class); 1284 if (tempMore.length > 0) { 1285 getSpannable().removeSpan(tempMore[0]); 1286 } 1287 RecipientChip[] recipients = getSortedRecipients(); 1288 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1289 mMoreChip = null; 1290 return; 1291 } 1292 Spannable spannable = getSpannable(); 1293 int numRecipients = recipients.length; 1294 int overage = numRecipients - CHIP_LIMIT; 1295 String moreText = String.format(mMoreItem.getText().toString(), overage); 1296 TextPaint morePaint = new TextPaint(getPaint()); 1297 morePaint.setTextSize(mMoreItem.getTextSize()); 1298 morePaint.setColor(mMoreItem.getCurrentTextColor()); 1299 int width = (int)morePaint.measureText(moreText) + mMoreItem.getPaddingLeft() 1300 + mMoreItem.getPaddingRight(); 1301 int height = getLineHeight(); 1302 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1303 Canvas canvas = new Canvas(drawable); 1304 canvas.drawText(moreText, 0, moreText.length(), 0, height - getLayout().getLineDescent(0), 1305 morePaint); 1306 1307 Drawable result = new BitmapDrawable(getResources(), drawable); 1308 result.setBounds(0, 0, width, height); 1309 MoreImageSpan moreSpan = new MoreImageSpan(result); 1310 // Remove the overage chips. 1311 if (recipients == null || recipients.length == 0) { 1312 Log.w(TAG, 1313 "We have recipients. Tt should not be possible to have zero RecipientChips."); 1314 mMoreChip = null; 1315 return; 1316 } 1317 mRemovedSpans = new ArrayList<RecipientChip>(); 1318 int totalReplaceStart = 0; 1319 int totalReplaceEnd = 0; 1320 Editable text = getText(); 1321 for (int i = numRecipients - overage; i < recipients.length; i++) { 1322 mRemovedSpans.add(recipients[i]); 1323 if (i == numRecipients - overage) { 1324 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1325 } 1326 if (i == recipients.length - 1) { 1327 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1328 } 1329 if (mTemporaryRecipients == null || !mTemporaryRecipients.contains(recipients[i])) { 1330 int spanStart = spannable.getSpanStart(recipients[i]); 1331 int spanEnd = spannable.getSpanEnd(recipients[i]); 1332 recipients[i].setOriginalText(text.toString().substring(spanStart, spanEnd)); 1333 } 1334 spannable.removeSpan(recipients[i]); 1335 } 1336 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1337 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1338 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1339 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1340 text.replace(start, end, chipText); 1341 mMoreChip = moreSpan; 1342 } 1343 1344 /** 1345 * Replace the more chip, if it exists, with all of the recipient chips it had 1346 * replaced when the RecipientEditTextView gains focus. 1347 */ 1348 private void removeMoreChip() { 1349 if (mMoreChip != null) { 1350 Spannable span = getSpannable(); 1351 span.removeSpan(mMoreChip); 1352 mMoreChip = null; 1353 // Re-add the spans that were removed. 1354 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1355 // Recreate each removed span. 1356 Editable editable = getText(); 1357 for (RecipientChip chip : mRemovedSpans) { 1358 int chipStart; 1359 int chipEnd; 1360 String token; 1361 // Need to find the location of the chip, again. 1362 token = (String) chip.getOriginalText(); 1363 chipStart = editable.toString().indexOf(token); 1364 // -1 for the space! 1365 chipEnd = Math.min(editable.length(), chipStart + token.length()); 1366 // Only set the span if we found a matching token. 1367 if (chipStart != -1) { 1368 editable.setSpan(chip, chipStart, chipEnd, 1369 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1370 } 1371 } 1372 mRemovedSpans.clear(); 1373 } 1374 } 1375 } 1376 1377 /** 1378 * Show specified chip as selected. If the RecipientChip is just an email address, 1379 * selecting the chip will take the contents of the chip and place it at 1380 * the end of the RecipientEditTextView for inline editing. If the 1381 * RecipientChip is a complete contact, then selecting the chip 1382 * will change the background color of the chip, show the delete icon, 1383 * and a popup window with the address in use highlighted and any other 1384 * alternate addresses for the contact. 1385 * @param currentChip Chip to select. 1386 * @return A RecipientChip in the selected state or null if the chip 1387 * just contained an email address. 1388 */ 1389 public RecipientChip selectChip(RecipientChip currentChip) { 1390 if (currentChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1391 CharSequence text = currentChip.getValue(); 1392 Editable editable = getText(); 1393 removeChip(currentChip); 1394 editable.append(text); 1395 setCursorVisible(true); 1396 setSelection(editable.length()); 1397 return null; 1398 } else if (currentChip.getContactId() == RecipientEntry.GENERATED_CONTACT) { 1399 int start = getChipStart(currentChip); 1400 int end = getChipEnd(currentChip); 1401 getSpannable().removeSpan(currentChip); 1402 RecipientChip newChip; 1403 try { 1404 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1405 } catch (NullPointerException e) { 1406 Log.e(TAG, e.getMessage(), e); 1407 return null; 1408 } 1409 Editable editable = getText(); 1410 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1411 if (start == -1 || end == -1) { 1412 Log.d(TAG, "The chip being selected no longer exists but should."); 1413 } else { 1414 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1415 } 1416 newChip.setSelected(true); 1417 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1418 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1419 } 1420 showAddress(newChip, mAddressPopup, getWidth(), getContext()); 1421 setCursorVisible(false); 1422 return newChip; 1423 } else { 1424 int start = getChipStart(currentChip); 1425 int end = getChipEnd(currentChip); 1426 getSpannable().removeSpan(currentChip); 1427 RecipientChip newChip; 1428 try { 1429 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1430 } catch (NullPointerException e) { 1431 Log.e(TAG, e.getMessage(), e); 1432 return null; 1433 } 1434 Editable editable = getText(); 1435 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1436 if (start == -1 || end == -1) { 1437 Log.d(TAG, "The chip being selected no longer exists but should."); 1438 } else { 1439 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1440 } 1441 newChip.setSelected(true); 1442 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1443 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1444 } 1445 showAlternates(newChip, mAlternatesPopup, getWidth(), getContext()); 1446 setCursorVisible(false); 1447 return newChip; 1448 } 1449 } 1450 1451 1452 private void showAddress(final RecipientChip currentChip, final ListPopupWindow popup, 1453 int width, Context context) { 1454 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1455 int bottom = calculateOffsetFromBottom(line); 1456 // Align the alternates popup with the left side of the View, 1457 // regardless of the position of the chip tapped. 1458 popup.setWidth(width); 1459 popup.setAnchorView(this); 1460 popup.setVerticalOffset(bottom); 1461 popup.setAdapter(createSingleAddressAdapter(currentChip)); 1462 popup.setOnItemClickListener(new OnItemClickListener() { 1463 @Override 1464 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1465 unselectChip(currentChip); 1466 popup.dismiss(); 1467 } 1468 }); 1469 popup.show(); 1470 ListView listView = popup.getListView(); 1471 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1472 listView.setItemChecked(0, true); 1473 } 1474 1475 /** 1476 * Remove selection from this chip. Unselecting a RecipientChip will render 1477 * the chip without a delete icon and with an unfocused background. This 1478 * is called when the RecipientChip no longer has focus. 1479 */ 1480 public void unselectChip(RecipientChip chip) { 1481 int start = getChipStart(chip); 1482 int end = getChipEnd(chip); 1483 Editable editable = getText(); 1484 mSelectedChip = null; 1485 if (start == -1 || end == -1) { 1486 Log.e(TAG, "The chip being unselected no longer exists but should."); 1487 } else { 1488 getSpannable().removeSpan(chip); 1489 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1490 editable.removeSpan(chip); 1491 try { 1492 editable.setSpan(constructChipSpan(chip.getEntry(), start, false), start, end, 1493 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1494 } catch (NullPointerException e) { 1495 Log.e(TAG, e.getMessage(), e); 1496 } 1497 } 1498 setCursorVisible(true); 1499 setSelection(editable.length()); 1500 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1501 mAlternatesPopup.dismiss(); 1502 } 1503 } 1504 1505 1506 /** 1507 * Return whether this chip contains the position passed in. 1508 */ 1509 public boolean matchesChip(RecipientChip chip, int offset) { 1510 int start = getChipStart(chip); 1511 int end = getChipEnd(chip); 1512 if (start == -1 || end == -1) { 1513 return false; 1514 } 1515 return (offset >= start && offset <= end); 1516 } 1517 1518 1519 /** 1520 * Return whether a touch event was inside the delete target of 1521 * a selected chip. It is in the delete target if: 1522 * 1) the x and y points of the event are within the 1523 * delete assset. 1524 * 2) the point tapped would have caused a cursor to appear 1525 * right after the selected chip. 1526 * @return boolean 1527 */ 1528 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1529 // Figure out the bounds of this chip and whether or not 1530 // the user clicked in the X portion. 1531 return chip.isSelected() && offset == getChipEnd(chip); 1532 } 1533 1534 /** 1535 * Remove the chip and any text associated with it from the RecipientEditTextView. 1536 */ 1537 private void removeChip(RecipientChip chip) { 1538 Spannable spannable = getSpannable(); 1539 int spanStart = spannable.getSpanStart(chip); 1540 int spanEnd = spannable.getSpanEnd(chip); 1541 Editable text = getText(); 1542 int toDelete = spanEnd; 1543 boolean wasSelected = chip == mSelectedChip; 1544 // Clear that there is a selected chip before updating any text. 1545 if (wasSelected) { 1546 mSelectedChip = null; 1547 } 1548 // Always remove trailing spaces when removing a chip. 1549 while (toDelete >= 0 && toDelete < text.length() && text.charAt(toDelete) == ' ') { 1550 toDelete++; 1551 } 1552 spannable.removeSpan(chip); 1553 text.delete(spanStart, toDelete); 1554 if (wasSelected) { 1555 clearSelectedChip(); 1556 } 1557 } 1558 1559 /** 1560 * Replace this currently selected chip with a new chip 1561 * that uses the contact data provided. 1562 */ 1563 public void replaceChip(RecipientChip chip, RecipientEntry entry) { 1564 boolean wasSelected = chip == mSelectedChip; 1565 if (wasSelected) { 1566 mSelectedChip = null; 1567 } 1568 int start = getChipStart(chip); 1569 int end = getChipEnd(chip); 1570 getSpannable().removeSpan(chip); 1571 Editable editable = getText(); 1572 CharSequence chipText = createChip(entry, false); 1573 if (start == -1 || end == -1) { 1574 Log.e(TAG, "The chip to replace does not exist but should."); 1575 editable.insert(0, chipText); 1576 } else { 1577 // There may be a space to replace with this chip's new associated 1578 // space. Check for it. 1579 int toReplace = end; 1580 while (toReplace >= 0 && toReplace < editable.length() 1581 && editable.charAt(toReplace) == ' ') { 1582 toReplace++; 1583 } 1584 editable.replace(start, toReplace, chipText); 1585 } 1586 setCursorVisible(true); 1587 if (wasSelected) { 1588 clearSelectedChip(); 1589 } 1590 } 1591 1592 /** 1593 * Handle click events for a chip. When a selected chip receives a click 1594 * event, see if that event was in the delete icon. If so, delete it. 1595 * Otherwise, unselect the chip. 1596 */ 1597 public void onClick(RecipientChip chip, int offset, float x, float y) { 1598 if (chip.isSelected()) { 1599 if (isInDelete(chip, offset, x, y)) { 1600 removeChip(chip); 1601 } else { 1602 clearSelectedChip(); 1603 } 1604 } 1605 } 1606 1607 private boolean chipsPending() { 1608 return mPendingChipsCount > 0 || (mRemovedSpans != null && mRemovedSpans.size() > 0); 1609 } 1610 1611 @Override 1612 public void removeTextChangedListener(TextWatcher watcher) { 1613 mTextWatcher = null; 1614 super.removeTextChangedListener(watcher); 1615 } 1616 1617 private class RecipientTextWatcher implements TextWatcher { 1618 @Override 1619 public void afterTextChanged(Editable s) { 1620 // If the text has been set to null or empty, make sure we remove 1621 // all the spans we applied. 1622 if (TextUtils.isEmpty(s)) { 1623 // Remove all the chips spans. 1624 Spannable spannable = getSpannable(); 1625 RecipientChip[] chips = spannable.getSpans(0, getText().length(), 1626 RecipientChip.class); 1627 for (RecipientChip chip : chips) { 1628 spannable.removeSpan(chip); 1629 } 1630 if (mMoreChip != null) { 1631 spannable.removeSpan(mMoreChip); 1632 } 1633 return; 1634 } 1635 // Get whether there are any recipients pending addition to the 1636 // view. If there are, don't do anything in the text watcher. 1637 if (chipsPending()) { 1638 return; 1639 } 1640 if (mSelectedChip != null) { 1641 setCursorVisible(true); 1642 setSelection(getText().length()); 1643 clearSelectedChip(); 1644 } 1645 int length = s.length(); 1646 // Make sure there is content there to parse and that it is 1647 // not just the commit character. 1648 if (length > 1) { 1649 char last; 1650 int end = getSelectionEnd() == 0 ? 0 : getSelectionEnd() - 1; 1651 int len = length() - 1; 1652 if (end != len) { 1653 last = s.charAt(end); 1654 } else { 1655 last = s.charAt(len); 1656 } 1657 if (last == COMMIT_CHAR_SEMICOLON || last == COMMIT_CHAR_COMMA) { 1658 commitByCharacter(); 1659 } else if (last == COMMIT_CHAR_SPACE) { 1660 // Check if this is a valid email address. If it is, 1661 // commit it. 1662 String text = getText().toString(); 1663 int tokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 1664 String sub = text.substring(tokenStart, mTokenizer.findTokenEnd(text, 1665 tokenStart)); 1666 if (mValidator != null && mValidator.isValid(sub)) { 1667 commitByCharacter(); 1668 } 1669 } 1670 } 1671 } 1672 1673 @Override 1674 public void onTextChanged(CharSequence s, int start, int before, int count) { 1675 // Do nothing. 1676 } 1677 1678 @Override 1679 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 1680 } 1681 } 1682 1683 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 1684 private RecipientChip createFreeChip(RecipientEntry entry) { 1685 String displayText = entry.getDestination(); 1686 if (displayText.indexOf(",") == -1) { 1687 displayText = (String) mTokenizer.terminateToken(displayText); 1688 } 1689 try { 1690 return constructChipSpan(entry, -1, false); 1691 } catch (NullPointerException e) { 1692 Log.e(TAG, e.getMessage(), e); 1693 return null; 1694 } 1695 } 1696 1697 @Override 1698 protected Void doInBackground(Void... params) { 1699 if (mIndividualReplacements != null) { 1700 mIndividualReplacements.cancel(true); 1701 } 1702 // For each chip in the list, look up the matching contact. 1703 // If there is a match, replace that chip with the matching 1704 // chip. 1705 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 1706 RecipientChip[] existingChips = getSortedRecipients(); 1707 for (int i = 0; i < existingChips.length; i++) { 1708 originalRecipients.add(existingChips[i]); 1709 } 1710 if (mRemovedSpans != null) { 1711 originalRecipients.addAll(mRemovedSpans); 1712 } 1713 String[] addresses = new String[originalRecipients.size()]; 1714 for (int i = 0; i < originalRecipients.size(); i++) { 1715 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1716 } 1717 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1718 .getMatchingRecipients(getContext(), addresses); 1719 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 1720 for (final RecipientChip temp : originalRecipients) { 1721 RecipientEntry entry = null; 1722 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1723 && getSpannable().getSpanStart(temp) != -1) { 1724 // Replace this. 1725 entry = createValidatedEntry(entries.get(tokenizeAddress(temp.getEntry() 1726 .getDestination()))); 1727 } 1728 if (entry != null) { 1729 replacements.add(createFreeChip(entry)); 1730 } else { 1731 replacements.add(temp); 1732 } 1733 } 1734 if (replacements != null && replacements.size() > 0) { 1735 mHandler.post(new Runnable() { 1736 @Override 1737 public void run() { 1738 SpannableStringBuilder text = new SpannableStringBuilder(getText() 1739 .toString()); 1740 Editable oldText = getText(); 1741 int start, end; 1742 int i = 0; 1743 for (RecipientChip chip : originalRecipients) { 1744 start = oldText.getSpanStart(chip); 1745 if (start != -1) { 1746 end = oldText.getSpanEnd(chip); 1747 text.removeSpan(chip); 1748 // Leave a spot for the space! 1749 RecipientChip replacement = replacements.get(i); 1750 text.setSpan(replacement, start, end, 1751 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1752 replacement.setOriginalText(text.toString().substring(start, end)); 1753 } 1754 i++; 1755 } 1756 Editable editable = getText(); 1757 editable.clear(); 1758 editable.insert(0, text); 1759 originalRecipients.clear(); 1760 } 1761 }); 1762 } 1763 return null; 1764 } 1765 } 1766 1767 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 1768 @SuppressWarnings("unchecked") 1769 @Override 1770 protected Void doInBackground(Object... params) { 1771 // For each chip in the list, look up the matching contact. 1772 // If there is a match, replace that chip with the matching 1773 // chip. 1774 final ArrayList<RecipientChip> originalRecipients = 1775 (ArrayList<RecipientChip>) params[0]; 1776 String[] addresses = new String[originalRecipients.size()]; 1777 for (int i = 0; i < originalRecipients.size(); i++) { 1778 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1779 } 1780 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1781 .getMatchingRecipients(getContext(), addresses); 1782 for (final RecipientChip temp : originalRecipients) { 1783 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1784 && getSpannable().getSpanStart(temp) != -1) { 1785 // Replace this. 1786 final RecipientEntry entry = createValidatedEntry(entries 1787 .get(tokenizeAddress(temp.getEntry().getDestination()))); 1788 if (entry != null) { 1789 mHandler.post(new Runnable() { 1790 @Override 1791 public void run() { 1792 replaceChip(temp, entry); 1793 } 1794 }); 1795 } 1796 } 1797 } 1798 return null; 1799 } 1800 } 1801 1802 1803 /** 1804 * MoreImageSpan is a simple class created for tracking the existence of a 1805 * more chip across activity restarts/ 1806 */ 1807 private class MoreImageSpan extends ImageSpan { 1808 public MoreImageSpan(Drawable b) { 1809 super(b); 1810 } 1811 } 1812 1813 @Override 1814 public boolean onDown(MotionEvent e) { 1815 return false; 1816 } 1817 1818 @Override 1819 public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { 1820 // Do nothing. 1821 return false; 1822 } 1823 1824 @Override 1825 public void onLongPress(MotionEvent event) { 1826 if (mSelectedChip != null) { 1827 return; 1828 } 1829 float x = event.getX(); 1830 float y = event.getY(); 1831 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 1832 RecipientChip currentChip = findChip(offset); 1833 if (currentChip != null) { 1834 // Copy the selected chip email address. 1835 showCopyDialog(currentChip.getEntry().getDestination()); 1836 } 1837 } 1838 1839 private void showCopyDialog(final String address) { 1840 mCopyAddress = address; 1841 mCopyDialog = new Dialog(getContext()); 1842 mCopyDialog.setTitle(address); 1843 mCopyDialog.setContentView(mCopyViewRes); 1844 mCopyDialog.setCancelable(true); 1845 mCopyDialog.setCanceledOnTouchOutside(true); 1846 mCopyDialog.findViewById(android.R.id.button1).setOnClickListener(this); 1847 mCopyDialog.setOnDismissListener(this); 1848 mCopyDialog.show(); 1849 } 1850 1851 @Override 1852 public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) { 1853 // Do nothing. 1854 return false; 1855 } 1856 1857 @Override 1858 public void onShowPress(MotionEvent e) { 1859 // Do nothing. 1860 } 1861 1862 @Override 1863 public boolean onSingleTapUp(MotionEvent e) { 1864 // Do nothing. 1865 return false; 1866 } 1867 1868 @Override 1869 public void onDismiss(DialogInterface dialog) { 1870 mCopyAddress = null; 1871 mCopyDialog = null; 1872 } 1873 1874 @Override 1875 public void onClick(View v) { 1876 // Copy this to the clipboard. 1877 ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService( 1878 Context.CLIPBOARD_SERVICE); 1879 clipboard.setPrimaryClip(ClipData.newPlainText("", mCopyAddress)); 1880 mCopyDialog.dismiss(); 1881 } 1882} 1883