RecipientEditTextView.java revision bfedc1e199e57dcda494389fdca0750e1f165135
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.ViewGroup; 62import android.view.View.OnClickListener; 63import android.view.ViewParent; 64import android.widget.AdapterView; 65import android.widget.AdapterView.OnItemClickListener; 66import android.widget.Filterable; 67import android.widget.ListAdapter; 68import android.widget.ListPopupWindow; 69import android.widget.ListView; 70import android.widget.MultiAutoCompleteTextView; 71import android.widget.ScrollView; 72import android.widget.TextView; 73 74import java.util.ArrayList; 75import java.util.Arrays; 76import java.util.Collection; 77import java.util.Collections; 78import java.util.Comparator; 79import java.util.HashMap; 80import java.util.HashSet; 81import java.util.Set; 82 83/** 84 * RecipientEditTextView is an auto complete text view for use with applications 85 * that use the new Chips UI for addressing a message to recipients. 86 */ 87public class RecipientEditTextView extends MultiAutoCompleteTextView implements 88 OnItemClickListener, Callback, RecipientAlternatesAdapter.OnCheckedItemChangedListener, 89 GestureDetector.OnGestureListener, OnDismissListener, OnClickListener { 90 91 private static final String TAG = "RecipientEditTextView"; 92 93 // TODO: get correct number/ algorithm from with UX. 94 private static final int CHIP_LIMIT = 2; 95 96 private Drawable mChipBackground = null; 97 98 private Drawable mChipDelete = null; 99 100 private int mChipPadding; 101 102 private Tokenizer mTokenizer; 103 104 private Drawable mChipBackgroundPressed; 105 106 private RecipientChip mSelectedChip; 107 108 private int mAlternatesLayout; 109 110 private Bitmap mDefaultContactPhoto; 111 112 private ImageSpan mMoreChip; 113 114 private TextView mMoreItem; 115 116 private final ArrayList<String> mPendingChips = new ArrayList<String>(); 117 118 private float mChipHeight; 119 120 private float mChipFontSize; 121 122 private Validator mValidator; 123 124 private Drawable mInvalidChipBackground; 125 126 private Handler mHandler; 127 128 private static int DISMISS = "dismiss".hashCode(); 129 130 private static final long DISMISS_DELAY = 300; 131 132 private int mPendingChipsCount = 0; 133 134 private static int sSelectedTextColor = -1; 135 136 private static final char COMMIT_CHAR_COMMA = ','; 137 138 private static final char COMMIT_CHAR_SEMICOLON = ';'; 139 140 private static final char COMMIT_CHAR_SPACE = ' '; 141 142 private ListPopupWindow mAlternatesPopup; 143 144 private ListPopupWindow mAddressPopup; 145 146 private ArrayList<RecipientChip> mTemporaryRecipients; 147 148 private ArrayList<RecipientChip> mRemovedSpans; 149 150 private boolean mShouldShrink = true; 151 152 // Chip copy fields. 153 private GestureDetector mGestureDetector; 154 155 private Dialog mCopyDialog; 156 157 private int mCopyViewRes; 158 159 private String mCopyAddress; 160 161 /** 162 * Used with {@link #mAlternatesPopup}. Handles clicks to alternate addresses for a 163 * selected chip. 164 */ 165 private OnItemClickListener mAlternatesListener; 166 167 private int mCheckedItem; 168 private TextWatcher mTextWatcher; 169 170 private ScrollView mScrollView; 171 172 private boolean mTried; 173 174 private final Runnable mAddTextWatcher = new Runnable() { 175 @Override 176 public void run() { 177 if (mTextWatcher == null) { 178 mTextWatcher = new RecipientTextWatcher(); 179 addTextChangedListener(mTextWatcher); 180 } 181 } 182 }; 183 184 private IndividualReplacementTask mIndividualReplacements; 185 186 private Runnable mHandlePendingChips = new Runnable() { 187 188 @Override 189 public void run() { 190 handlePendingChips(); 191 } 192 193 }; 194 195 public RecipientEditTextView(Context context, AttributeSet attrs) { 196 super(context, attrs); 197 if (sSelectedTextColor == -1) { 198 sSelectedTextColor = context.getResources().getColor(android.R.color.white); 199 } 200 mAlternatesPopup = new ListPopupWindow(context); 201 mAddressPopup = new ListPopupWindow(context); 202 mCopyDialog = new Dialog(context); 203 mAlternatesListener = new OnItemClickListener() { 204 @Override 205 public void onItemClick(AdapterView<?> adapterView,View view, int position, 206 long rowId) { 207 mAlternatesPopup.setOnItemClickListener(null); 208 replaceChip(mSelectedChip, ((RecipientAlternatesAdapter) adapterView.getAdapter()) 209 .getRecipientEntry(position)); 210 Message delayed = Message.obtain(mHandler, DISMISS); 211 delayed.obj = mAlternatesPopup; 212 mHandler.sendMessageDelayed(delayed, DISMISS_DELAY); 213 clearComposingText(); 214 } 215 }; 216 setInputType(getInputType() | InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS); 217 setOnItemClickListener(this); 218 setCustomSelectionActionModeCallback(this); 219 mHandler = new Handler() { 220 @Override 221 public void handleMessage(Message msg) { 222 if (msg.what == DISMISS) { 223 ((ListPopupWindow) msg.obj).dismiss(); 224 return; 225 } 226 super.handleMessage(msg); 227 } 228 }; 229 mTextWatcher = new RecipientTextWatcher(); 230 addTextChangedListener(mTextWatcher); 231 mGestureDetector = new GestureDetector(context, this); 232 } 233 234 @Override 235 public <T extends ListAdapter & Filterable> void setAdapter(T adapter) { 236 super.setAdapter(adapter); 237 if (adapter == null) { 238 return; 239 } 240 } 241 242 @Override 243 public void onSelectionChanged(int start, int end) { 244 // When selection changes, see if it is inside the chips area. 245 // If so, move the cursor back after the chips again. 246 Spannable span = getSpannable(); 247 int textLength = getText().length(); 248 RecipientChip[] chips = span.getSpans(start, textLength, RecipientChip.class); 249 if (chips != null && chips.length > 0) { 250 if (chips != null && chips.length > 0) { 251 // Grab the last chip and set the cursor to after it. 252 setSelection(Math.min(span.getSpanEnd(chips[chips.length - 1]) + 1, textLength)); 253 } 254 } 255 super.onSelectionChanged(start, end); 256 } 257 258 /** 259 * Convenience method: Append the specified text slice to the TextView's 260 * display buffer, upgrading it to BufferType.EDITABLE if it was 261 * not already editable. Commas are excluded as they are added automatically 262 * by the view. 263 */ 264 @Override 265 public void append(CharSequence text, int start, int end) { 266 // We don't care about watching text changes while appending. 267 if (mTextWatcher != null) { 268 removeTextChangedListener(mTextWatcher); 269 } 270 super.append(text, start, end); 271 if (!TextUtils.isEmpty(text) && TextUtils.getTrimmedLength(text) > 0) { 272 final String displayString = (String) text; 273 int seperatorPos = displayString.indexOf(COMMIT_CHAR_COMMA); 274 if (seperatorPos != 0 && !TextUtils.isEmpty(displayString) 275 && TextUtils.getTrimmedLength(displayString) > 0) { 276 mPendingChipsCount++; 277 mPendingChips.add((String)text); 278 } 279 } 280 // Put a message on the queue to make sure we ALWAYS handle pending chips. 281 if (mPendingChipsCount > 0) { 282 postHandlePendingChips(); 283 } 284 mHandler.post(mAddTextWatcher); 285 } 286 287 @Override 288 public void onFocusChanged(boolean hasFocus, int direction, Rect previous) { 289 super.onFocusChanged(hasFocus, direction, previous); 290 if (!hasFocus) { 291 shrink(); 292 } else { 293 expand(); 294 scrollLineIntoView(getLineCount()); 295 } 296 } 297 298 @Override 299 public void performValidation() { 300 // Do nothing. Chips handles its own validation. 301 } 302 303 private void shrink() { 304 if (mSelectedChip != null) { 305 clearSelectedChip(); 306 } else { 307 // Reset any pending chips as they would have been handled 308 // when the field lost focus. 309 if (mPendingChipsCount > 0) { 310 postHandlePendingChips(); 311 } else { 312 Editable editable = getText(); 313 int end = getSelectionEnd(); 314 int start = mTokenizer.findTokenStart(editable, end); 315 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 316 if ((chips == null || chips.length == 0)) { 317 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 318 // In the middle of chip; treat this as an edit 319 // and commit the whole token. 320 if (whatEnd != getSelectionEnd()) { 321 handleEdit(start, whatEnd); 322 } else { 323 commitChip(start, end, editable); 324 } 325 } 326 } 327 mHandler.post(mAddTextWatcher); 328 } 329 createMoreChip(); 330 } 331 332 private void expand() { 333 removeMoreChip(); 334 setCursorVisible(true); 335 Editable text = getText(); 336 setSelection(text != null && text.length() > 0 ? text.length() : 0); 337 // If there are any temporary chips, try replacing them now that the user 338 // has expanded the field. 339 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0) { 340 new RecipientReplacementTask().execute(); 341 mTemporaryRecipients = null; 342 } 343 } 344 345 private CharSequence ellipsizeText(CharSequence text, TextPaint paint, float maxWidth) { 346 paint.setTextSize(mChipFontSize); 347 if (maxWidth <= 0 && Log.isLoggable(TAG, Log.DEBUG)) { 348 Log.d(TAG, "Max width is negative: " + maxWidth); 349 } 350 return TextUtils.ellipsize(text, paint, maxWidth, 351 TextUtils.TruncateAt.END); 352 } 353 354 private Bitmap createSelectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 355 // Ellipsize the text so that it takes AT MOST the entire width of the 356 // autocomplete text entry area. Make sure to leave space for padding 357 // on the sides. 358 int height = (int) mChipHeight; 359 int deleteWidth = height; 360 CharSequence ellipsizedText = ellipsizeText(contact.getDisplayName(), paint, 361 calculateAvailableWidth(true) - deleteWidth); 362 363 // Make sure there is a minimum chip width so the user can ALWAYS 364 // tap a chip without difficulty. 365 int width = Math.max(deleteWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 366 ellipsizedText.length())) 367 + (mChipPadding * 2) + deleteWidth); 368 369 // Create the background of the chip. 370 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 371 Canvas canvas = new Canvas(tmpBitmap); 372 if (mChipBackgroundPressed != null) { 373 mChipBackgroundPressed.setBounds(0, 0, width, height); 374 mChipBackgroundPressed.draw(canvas); 375 paint.setColor(sSelectedTextColor); 376 // Vertically center the text in the chip. 377 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 378 getTextYOffset((String) ellipsizedText, paint, height), paint); 379 // Make the delete a square. 380 mChipDelete.setBounds(width - deleteWidth, 0, width, height); 381 mChipDelete.draw(canvas); 382 } else { 383 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 384 } 385 return tmpBitmap; 386 } 387 388 389 /** 390 * Get the background drawable for a RecipientChip. 391 */ 392 public Drawable getChipBackground(RecipientEntry contact) { 393 return (mValidator != null && mValidator.isValid(contact.getDestination())) ? 394 mChipBackground : mInvalidChipBackground; 395 } 396 397 private Bitmap createUnselectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 398 // Ellipsize the text so that it takes AT MOST the entire width of the 399 // autocomplete text entry area. Make sure to leave space for padding 400 // on the sides. 401 int height = (int) mChipHeight; 402 int iconWidth = height; 403 String displayText = 404 !TextUtils.isEmpty(contact.getDisplayName()) ? contact.getDisplayName() : 405 !TextUtils.isEmpty(contact.getDestination()) ? contact.getDestination() : ""; 406 CharSequence ellipsizedText = ellipsizeText(displayText, paint, 407 calculateAvailableWidth(false) - iconWidth); 408 // Make sure there is a minimum chip width so the user can ALWAYS 409 // tap a chip without difficulty. 410 int width = Math.max(iconWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 411 ellipsizedText.length())) 412 + (mChipPadding * 2) + iconWidth); 413 414 // Create the background of the chip. 415 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 416 Canvas canvas = new Canvas(tmpBitmap); 417 Drawable background = getChipBackground(contact); 418 if (background != null) { 419 background.setBounds(0, 0, width, height); 420 background.draw(canvas); 421 422 // Don't draw photos for recipients that have been typed in. 423 if (contact.getContactId() != RecipientEntry.INVALID_CONTACT) { 424 byte[] photoBytes = contact.getPhotoBytes(); 425 // There may not be a photo yet if anything but the first contact address 426 // was selected. 427 if (photoBytes == null && contact.getPhotoThumbnailUri() != null) { 428 // TODO: cache this in the recipient entry? 429 ((BaseRecipientAdapter) getAdapter()).fetchPhoto(contact, contact 430 .getPhotoThumbnailUri()); 431 photoBytes = contact.getPhotoBytes(); 432 } 433 434 Bitmap photo; 435 if (photoBytes != null) { 436 photo = BitmapFactory.decodeByteArray(photoBytes, 0, photoBytes.length); 437 } else { 438 // TODO: can the scaled down default photo be cached? 439 photo = mDefaultContactPhoto; 440 } 441 // Draw the photo on the left side. 442 Matrix matrix = new Matrix(); 443 RectF src = new RectF(0, 0, photo.getWidth(), photo.getHeight()); 444 RectF dst = new RectF(width - iconWidth, 0, width, height); 445 matrix.setRectToRect(src, dst, Matrix.ScaleToFit.CENTER); 446 canvas.drawBitmap(photo, matrix, paint); 447 } else { 448 // Don't leave any space for the icon. It isn't being drawn. 449 iconWidth = 0; 450 } 451 452 // Vertically center the text in the chip. 453 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 454 getTextYOffset((String)ellipsizedText, paint, height), paint); 455 } else { 456 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 457 } 458 return tmpBitmap; 459 } 460 461 private float getTextYOffset(String text, TextPaint paint, int height) { 462 Rect bounds = new Rect(); 463 paint.getTextBounds((String)text, 0, text.length(), bounds); 464 int textHeight = bounds.bottom - bounds.top - (int)paint.descent(); 465 return height - ((height - textHeight) / 2); 466 } 467 468 public RecipientChip constructChipSpan(RecipientEntry contact, int offset, boolean pressed) 469 throws NullPointerException { 470 if (mChipBackground == null) { 471 throw new NullPointerException( 472 "Unable to render any chips as setChipDimensions was not called."); 473 } 474 Layout layout = getLayout(); 475 476 TextPaint paint = getPaint(); 477 float defaultSize = paint.getTextSize(); 478 int defaultColor = paint.getColor(); 479 480 Bitmap tmpBitmap; 481 if (pressed) { 482 tmpBitmap = createSelectedChip(contact, paint, layout); 483 484 } else { 485 tmpBitmap = createUnselectedChip(contact, paint, layout); 486 } 487 488 // Pass the full text, un-ellipsized, to the chip. 489 Drawable result = new BitmapDrawable(getResources(), tmpBitmap); 490 result.setBounds(0, 0, tmpBitmap.getWidth(), tmpBitmap.getHeight()); 491 RecipientChip recipientChip = new RecipientChip(result, contact, offset); 492 // Return text to the original size. 493 paint.setTextSize(defaultSize); 494 paint.setColor(defaultColor); 495 return recipientChip; 496 } 497 498 /** 499 * Calculate the bottom of the line the chip will be located on using: 500 * 1) which line the chip appears on 501 * 2) the height of a chip 502 * 3) padding built into the edit text view 503 */ 504 private int calculateOffsetFromBottom(int line) { 505 // Line offsets start at zero. 506 int actualLine = getLineCount() - (line + 1); 507 return -((actualLine * ((int) mChipHeight) + getPaddingBottom()) + getPaddingTop()) 508 + getDropDownVerticalOffset(); 509 } 510 511 /** 512 * Get the max amount of space a chip can take up. The formula takes into 513 * account the width of the EditTextView, any view padding, and padding 514 * that will be added to the chip. 515 */ 516 private float calculateAvailableWidth(boolean pressed) { 517 return getWidth() - getPaddingLeft() - getPaddingRight() - (mChipPadding * 2); 518 } 519 520 /** 521 * Set all chip dimensions and resources. This has to be done from the 522 * application as this is a static library. 523 * @param chipBackground 524 * @param chipBackgroundPressed 525 * @param invalidChip 526 * @param chipDelete 527 * @param defaultContact 528 * @param moreResource 529 * @param alternatesLayout 530 * @param chipHeight 531 * @param padding Padding around the text in a chip 532 * @param chipFontSize 533 * @param copyViewRes 534 */ 535 public void setChipDimensions(Drawable chipBackground, Drawable chipBackgroundPressed, 536 Drawable invalidChip, Drawable chipDelete, Bitmap defaultContact, int moreResource, 537 int alternatesLayout, float chipHeight, float padding, 538 float chipFontSize, int copyViewRes) { 539 mChipBackground = chipBackground; 540 mChipBackgroundPressed = chipBackgroundPressed; 541 mChipDelete = chipDelete; 542 mChipPadding = (int) padding; 543 mAlternatesLayout = alternatesLayout; 544 mDefaultContactPhoto = defaultContact; 545 mMoreItem = (TextView) LayoutInflater.from(getContext()).inflate(moreResource, null); 546 mChipHeight = chipHeight; 547 mChipFontSize = chipFontSize; 548 mInvalidChipBackground = invalidChip; 549 mCopyViewRes = copyViewRes; 550 } 551 552 /** 553 * Set whether to shrink the recipients field such that at most 554 * one line of recipients chips are shown when the field loses 555 * focus. By default, the number of displayed recipients will be 556 * limited and a "more" chip will be shown when focus is lost. 557 * @param shrink 558 */ 559 public void setOnFocusListShrinkRecipients(boolean shrink) { 560 mShouldShrink = shrink; 561 } 562 563 @Override 564 public void onSizeChanged(int width, int height, int oldw, int oldh) { 565 super.onSizeChanged(width, height, oldw, oldh); 566 if (width != 0 && height != 0 && mPendingChipsCount > 0) { 567 postHandlePendingChips(); 568 } 569 // Try to find the scroll view parent, if it exists. 570 if (mScrollView == null && !mTried) { 571 ViewParent parent = getParent(); 572 while (parent != null && !(parent instanceof ScrollView)) { 573 parent = parent.getParent(); 574 } 575 if (parent != null) { 576 mScrollView = (ScrollView) parent; 577 } 578 mTried = true; 579 } 580 } 581 582 private void postHandlePendingChips() { 583 mHandler.removeCallbacks(mHandlePendingChips); 584 mHandler.post(mHandlePendingChips); 585 } 586 587 private void handlePendingChips() { 588 if (mPendingChipsCount <= 0) { 589 return; 590 } 591 if (getWidth() <= 0) { 592 // The widget has not been sized yet. 593 // This will be called as a result of onSizeChanged 594 // at a later point. 595 return; 596 } 597 synchronized (mPendingChips) { 598 mTemporaryRecipients = new ArrayList<RecipientChip>(mPendingChipsCount); 599 Editable editable = getText(); 600 // Tokenize! 601 for (int i = 0; i < mPendingChips.size(); i++) { 602 String current = mPendingChips.get(i); 603 int tokenStart = editable.toString().indexOf(current); 604 int tokenEnd = tokenStart + current.length(); 605 if (tokenStart >= 0) { 606 // When we have a valid token, include it with the token 607 // to the left. 608 if (tokenEnd < editable.length() - 2 609 && editable.charAt(tokenEnd) == COMMIT_CHAR_COMMA) { 610 tokenEnd++; 611 } 612 createReplacementChip(tokenStart, tokenEnd, editable); 613 } 614 mPendingChipsCount--; 615 } 616 sanitizeSpannable(); 617 if (mTemporaryRecipients != null 618 && mTemporaryRecipients.size() <= RecipientAlternatesAdapter.MAX_LOOKUPS) { 619 if (hasFocus() || mTemporaryRecipients.size() < CHIP_LIMIT) { 620 new RecipientReplacementTask().execute(); 621 mTemporaryRecipients = null; 622 } else { 623 // Create the "more" chip 624 mIndividualReplacements = new IndividualReplacementTask(); 625 mIndividualReplacements.execute(new ArrayList<RecipientChip>( 626 mTemporaryRecipients.subList(0, CHIP_LIMIT))); 627 628 createMoreChip(); 629 } 630 } else { 631 // There are too many recipients to look up, so just fall back 632 // to 633 // showing addresses for all of them. 634 mTemporaryRecipients = null; 635 createMoreChip(); 636 } 637 mPendingChipsCount = 0; 638 mPendingChips.clear(); 639 } 640 } 641 642 /** 643 * Remove any characters after the last valid chip. 644 */ 645 private void sanitizeSpannable() { 646 // Find the last chip; eliminate any commit characters after it. 647 RecipientChip[] chips = getRecipients(); 648 if (chips != null && chips.length > 0) { 649 int end; 650 ImageSpan lastSpan; 651 if (mMoreChip != null) { 652 lastSpan = mMoreChip; 653 } else { 654 lastSpan = chips[chips.length - 1]; 655 } 656 end = getSpannable().getSpanEnd(lastSpan); 657 Editable editable = getText(); 658 int length = editable.length(); 659 if (length > end) { 660 // See what characters occur after that and eliminate them. 661 if (Log.isLoggable(TAG, Log.DEBUG)) { 662 Log.d(TAG, "There were extra characters after the last tokenizable entry." 663 + editable); 664 } 665 editable.delete(end + 1, length); 666 } 667 } 668 } 669 670 /** 671 * Create a chip that represents just the email address of a recipient. At some later 672 * point, this chip will be attached to a real contact entry, if one exists. 673 */ 674 private void createReplacementChip(int tokenStart, int tokenEnd, Editable editable) { 675 if (alreadyHasChip(tokenStart, tokenEnd)) { 676 // There is already a chip present at this location. 677 // Don't recreate it. 678 return; 679 } 680 String token = editable.toString().substring(tokenStart, tokenEnd); 681 int commitCharIndex = token.trim().lastIndexOf(COMMIT_CHAR_COMMA); 682 if (commitCharIndex == token.length() - 1) { 683 token = token.substring(0, token.length() - 1); 684 } 685 RecipientEntry entry = createTokenizedEntry(token); 686 if (entry != null) { 687 String destText = entry.getDestination(); 688 destText = (String) mTokenizer.terminateToken(destText); 689 // Always leave a blank space at the end of a chip. 690 int textLength = destText.length() - 1; 691 SpannableString chipText = new SpannableString(destText); 692 int end = getSelectionEnd(); 693 int start = mTokenizer.findTokenStart(getText(), end); 694 RecipientChip chip = null; 695 try { 696 chip = constructChipSpan(entry, start, false); 697 chipText.setSpan(chip, 0, textLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 698 } catch (NullPointerException e) { 699 Log.e(TAG, e.getMessage(), e); 700 } 701 702 editable.replace(tokenStart, tokenEnd, chipText); 703 // Add this chip to the list of entries "to replace" 704 if (chip != null) { 705 chip.setOriginalText(chipText.toString()); 706 mTemporaryRecipients.add(chip); 707 } 708 } 709 } 710 711 private RecipientEntry createTokenizedEntry(String token) { 712 if (TextUtils.isEmpty(token)) { 713 return null; 714 } 715 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(token); 716 String display = null; 717 if (isValid(token) && tokens != null && tokens.length > 0) { 718 // If we can get a name from tokenizing, then generate an entry from 719 // this. 720 display = tokens[0].getName(); 721 if (!TextUtils.isEmpty(display)) { 722 return RecipientEntry.constructGeneratedEntry(display, token); 723 } else { 724 display = tokens[0].getAddress(); 725 if (!TextUtils.isEmpty(display)) { 726 return RecipientEntry.constructFakeEntry(display); 727 } 728 } 729 } 730 // Unable to validate the token or to create a valid token from it. 731 // Just create a chip the user can edit. 732 if (mValidator != null && !mValidator.isValid(token)) { 733 // Try fixing up the entry using the validator. 734 token = mValidator.fixText(token).toString(); 735 if (!TextUtils.isEmpty(token)) { 736 // protect against the case of a validator with a null domain, 737 // which doesn't add a domain to the token 738 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(token); 739 if (tokenized.length > 0) { 740 token = tokenized[0].getAddress(); 741 } 742 } 743 } 744 // Otherwise, fallback to just creating an editable email address chip. 745 return RecipientEntry.constructFakeEntry(token); 746 } 747 748 private boolean isValid(String text) { 749 return mValidator == null ? true : mValidator.isValid(text); 750 } 751 752 private String tokenizeAddress(String destination) { 753 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(destination); 754 if (tokens != null && tokens.length > 0) { 755 return tokens[0].getAddress(); 756 } 757 return destination; 758 } 759 760 @Override 761 public void setTokenizer(Tokenizer tokenizer) { 762 mTokenizer = tokenizer; 763 super.setTokenizer(mTokenizer); 764 } 765 766 @Override 767 public void setValidator(Validator validator) { 768 mValidator = validator; 769 super.setValidator(validator); 770 } 771 772 /** 773 * We cannot use the default mechanism for replaceText. Instead, 774 * we override onItemClickListener so we can get all the associated 775 * contact information including display text, address, and id. 776 */ 777 @Override 778 protected void replaceText(CharSequence text) { 779 return; 780 } 781 782 /** 783 * Dismiss any selected chips when the back key is pressed. 784 */ 785 @Override 786 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 787 if (keyCode == KeyEvent.KEYCODE_BACK) { 788 clearSelectedChip(); 789 } 790 return super.onKeyPreIme(keyCode, event); 791 } 792 793 /** 794 * Monitor key presses in this view to see if the user types 795 * any commit keys, which consist of ENTER, TAB, or DPAD_CENTER. 796 * If the user has entered text that has contact matches and types 797 * a commit key, create a chip from the topmost matching contact. 798 * If the user has entered text that has no contact matches and types 799 * a commit key, then create a chip from the text they have entered. 800 */ 801 @Override 802 public boolean onKeyUp(int keyCode, KeyEvent event) { 803 switch (keyCode) { 804 case KeyEvent.KEYCODE_ENTER: 805 case KeyEvent.KEYCODE_DPAD_CENTER: 806 if (event.hasNoModifiers()) { 807 if (commitDefault()) { 808 return true; 809 } 810 if (mSelectedChip != null) { 811 clearSelectedChip(); 812 return true; 813 } else if (focusNext()) { 814 return true; 815 } 816 } 817 break; 818 case KeyEvent.KEYCODE_TAB: 819 if (event.hasNoModifiers()) { 820 if (mSelectedChip != null) { 821 clearSelectedChip(); 822 } else { 823 commitDefault(); 824 } 825 if (focusNext()) { 826 return true; 827 } 828 } 829 } 830 return super.onKeyUp(keyCode, event); 831 } 832 833 private boolean focusNext() { 834 View next = focusSearch(View.FOCUS_DOWN); 835 if (next != null) { 836 next.requestFocus(); 837 return true; 838 } 839 return false; 840 } 841 842 /** 843 * Create a chip from the default selection. If the popup is showing, the 844 * default is the first item in the popup suggestions list. Otherwise, it is 845 * whatever the user had typed in. End represents where the the tokenizer 846 * should search for a token to turn into a chip. 847 * @return If a chip was created from a real contact. 848 */ 849 private boolean commitDefault() { 850 Editable editable = getText(); 851 int end = getSelectionEnd(); 852 int start = mTokenizer.findTokenStart(editable, end); 853 854 if (shouldCreateChip(start, end)) { 855 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 856 // In the middle of chip; treat this as an edit 857 // and commit the whole token. 858 if (whatEnd != getSelectionEnd()) { 859 handleEdit(start, whatEnd); 860 return true; 861 } 862 return commitChip(start, end , editable); 863 } 864 return false; 865 } 866 867 private void commitByCharacter() { 868 Editable editable = getText(); 869 int end = getSelectionEnd(); 870 int start = mTokenizer.findTokenStart(editable, end); 871 if (shouldCreateChip(start, end)) { 872 commitChip(start, end, editable); 873 } 874 setSelection(getText().length()); 875 } 876 877 private boolean commitChip(int start, int end, Editable editable) { 878 if (getAdapter().getCount() > 0 && enoughToFilter()) { 879 // choose the first entry. 880 submitItemAtPosition(0); 881 dismissDropDown(); 882 return true; 883 } else { 884 int tokenEnd = mTokenizer.findTokenEnd(editable, start); 885 String text = editable.toString().substring(start, tokenEnd).trim(); 886 clearComposingText(); 887 if (text != null && text.length() > 0 && !text.equals(" ")) { 888 RecipientEntry entry = createTokenizedEntry(text); 889 if (entry != null) { 890 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 891 CharSequence chipText = createChip(entry, false); 892 editable.replace(start, end, chipText); 893 } 894 dismissDropDown(); 895 return true; 896 } 897 } 898 return false; 899 } 900 901 private boolean shouldCreateChip(int start, int end) { 902 return hasFocus() && enoughToFilter() && !alreadyHasChip(start, end); 903 } 904 905 private boolean alreadyHasChip(int start, int end) { 906 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 907 if ((chips == null || chips.length == 0)) { 908 return false; 909 } 910 return true; 911 } 912 913 private void handleEdit(int start, int end) { 914 // This is in the middle of a chip, so select out the whole chip 915 // and commit it. 916 Editable editable = getText(); 917 setSelection(end); 918 String text = getText().toString().substring(start, end); 919 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 920 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 921 CharSequence chipText = createChip(entry, false); 922 editable.replace(start, getSelectionEnd(), chipText); 923 dismissDropDown(); 924 } 925 926 /** 927 * If there is a selected chip, delegate the key events 928 * to the selected chip. 929 */ 930 @Override 931 public boolean onKeyDown(int keyCode, KeyEvent event) { 932 if (mSelectedChip != null && keyCode == KeyEvent.KEYCODE_DEL) { 933 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 934 mAlternatesPopup.dismiss(); 935 } 936 removeChip(mSelectedChip); 937 } 938 939 if (keyCode == KeyEvent.KEYCODE_ENTER && event.hasNoModifiers()) { 940 return true; 941 } 942 943 return super.onKeyDown(keyCode, event); 944 } 945 946 private Spannable getSpannable() { 947 return getText(); 948 } 949 950 private int getChipStart(RecipientChip chip) { 951 return getSpannable().getSpanStart(chip); 952 } 953 954 private int getChipEnd(RecipientChip chip) { 955 return getSpannable().getSpanEnd(chip); 956 } 957 958 /** 959 * Instead of filtering on the entire contents of the edit box, 960 * this subclass method filters on the range from 961 * {@link Tokenizer#findTokenStart} to {@link #getSelectionEnd} 962 * if the length of that range meets or exceeds {@link #getThreshold} 963 * and makes sure that the range is not already a Chip. 964 */ 965 @Override 966 protected void performFiltering(CharSequence text, int keyCode) { 967 if (enoughToFilter()) { 968 int end = getSelectionEnd(); 969 int start = mTokenizer.findTokenStart(text, end); 970 // If this is a RecipientChip, don't filter 971 // on its contents. 972 Spannable span = getSpannable(); 973 RecipientChip[] chips = span.getSpans(start, end, RecipientChip.class); 974 if (chips != null && chips.length > 0) { 975 return; 976 } 977 } 978 super.performFiltering(text, keyCode); 979 } 980 981 private void clearSelectedChip() { 982 if (mSelectedChip != null) { 983 unselectChip(mSelectedChip); 984 mSelectedChip = null; 985 } 986 setCursorVisible(true); 987 } 988 989 /** 990 * Monitor touch events in the RecipientEditTextView. 991 * If the view does not have focus, any tap on the view 992 * will just focus the view. If the view has focus, determine 993 * if the touch target is a recipient chip. If it is and the chip 994 * is not selected, select it and clear any other selected chips. 995 * If it isn't, then select that chip. 996 */ 997 @Override 998 public boolean onTouchEvent(MotionEvent event) { 999 if (!isFocused()) { 1000 // Ignore any chip taps until this view is focused. 1001 return super.onTouchEvent(event); 1002 } 1003 1004 boolean handled = super.onTouchEvent(event); 1005 int action = event.getAction(); 1006 boolean chipWasSelected = false; 1007 if (action == MotionEvent.ACTION_DOWN && mSelectedChip == null) { 1008 mGestureDetector.onTouchEvent(event); 1009 } 1010 if (mCopyAddress == null && action == MotionEvent.ACTION_UP) { 1011 float x = event.getX(); 1012 float y = event.getY(); 1013 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 1014 RecipientChip currentChip = findChip(offset); 1015 if (currentChip != null) { 1016 if (action == MotionEvent.ACTION_UP) { 1017 if (mSelectedChip != null && mSelectedChip != currentChip) { 1018 clearSelectedChip(); 1019 mSelectedChip = selectChip(currentChip); 1020 } else if (mSelectedChip == null) { 1021 // Selection may have moved due to the tap event, 1022 // but make sure we correctly reset selection to the 1023 // end so that any unfinished chips are committed. 1024 setSelection(getText().length()); 1025 commitDefault(); 1026 mSelectedChip = selectChip(currentChip); 1027 } else { 1028 onClick(mSelectedChip, offset, x, y); 1029 } 1030 } 1031 chipWasSelected = true; 1032 handled = true; 1033 } 1034 } 1035 if (action == MotionEvent.ACTION_UP && !chipWasSelected) { 1036 clearSelectedChip(); 1037 } 1038 return handled; 1039 } 1040 1041 private void scrollLineIntoView(int line) { 1042 if (mScrollView != null) { 1043 mScrollView.scrollBy(0, calculateOffsetFromBottom(line)); 1044 } 1045 } 1046 1047 private void showAlternates(RecipientChip currentChip, ListPopupWindow alternatesPopup, 1048 int width, Context context) { 1049 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1050 int bottom = calculateOffsetFromBottom(line); 1051 // Align the alternates popup with the left side of the View, 1052 // regardless of the position of the chip tapped. 1053 alternatesPopup.setWidth(width); 1054 alternatesPopup.setAnchorView(this); 1055 alternatesPopup.setVerticalOffset(bottom); 1056 alternatesPopup.setAdapter(createAlternatesAdapter(currentChip)); 1057 alternatesPopup.setOnItemClickListener(mAlternatesListener); 1058 alternatesPopup.show(); 1059 ListView listView = alternatesPopup.getListView(); 1060 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1061 // Checked item would be -1 if the adapter has not 1062 // loaded the view that should be checked yet. The 1063 // variable will be set correctly when onCheckedItemChanged 1064 // is called in a separate thread. 1065 if (mCheckedItem != -1) { 1066 listView.setItemChecked(mCheckedItem, true); 1067 mCheckedItem = -1; 1068 } 1069 } 1070 1071 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 1072 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 1073 mAlternatesLayout, this); 1074 } 1075 1076 private ListAdapter createSingleAddressAdapter(RecipientChip currentChip) { 1077 return new SingleRecipientArrayAdapter(getContext(), mAlternatesLayout, currentChip 1078 .getEntry()); 1079 } 1080 1081 @Override 1082 public void onCheckedItemChanged(int position) { 1083 ListView listView = mAlternatesPopup.getListView(); 1084 if (listView != null && listView.getCheckedItemCount() == 0) { 1085 listView.setItemChecked(position, true); 1086 } else { 1087 mCheckedItem = position; 1088 } 1089 } 1090 1091 // TODO: This algorithm will need a lot of tweaking after more people have used 1092 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 1093 // what comes before the finger. 1094 private int putOffsetInRange(int o) { 1095 int offset = o; 1096 Editable text = getText(); 1097 int length = text.length(); 1098 // Remove whitespace from end to find "real end" 1099 int realLength = length; 1100 for (int i = length - 1; i >= 0; i--) { 1101 if (text.charAt(i) == ' ') { 1102 realLength--; 1103 } else { 1104 break; 1105 } 1106 } 1107 1108 // If the offset is beyond or at the end of the text, 1109 // leave it alone. 1110 if (offset >= realLength) { 1111 return offset; 1112 } 1113 Editable editable = getText(); 1114 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 1115 // Keep walking backward! 1116 offset--; 1117 } 1118 return offset; 1119 } 1120 1121 private int findText(Editable text, int offset) { 1122 if (text.charAt(offset) != ' ') { 1123 return offset; 1124 } 1125 return -1; 1126 } 1127 1128 private RecipientChip findChip(int offset) { 1129 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1130 // Find the chip that contains this offset. 1131 for (int i = 0; i < chips.length; i++) { 1132 RecipientChip chip = chips[i]; 1133 int start = getChipStart(chip); 1134 int end = getChipEnd(chip); 1135 if (offset >= start && offset <= end) { 1136 return chip; 1137 } 1138 } 1139 return null; 1140 } 1141 1142 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 1143 String displayText = entry.getDestination(); 1144 displayText = (String) mTokenizer.terminateToken(displayText); 1145 // Always leave a blank space at the end of a chip. 1146 int textLength = displayText.length()-1; 1147 SpannableString chipText = new SpannableString(displayText); 1148 int end = getSelectionEnd(); 1149 int start = mTokenizer.findTokenStart(getText(), end); 1150 try { 1151 RecipientChip chip = constructChipSpan(entry, start, pressed); 1152 chipText.setSpan(chip, 0, textLength, 1153 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1154 chip.setOriginalText(chipText.toString()); 1155 } catch (NullPointerException e) { 1156 Log.e(TAG, e.getMessage(), e); 1157 return null; 1158 } 1159 1160 return chipText; 1161 } 1162 1163 /** 1164 * When an item in the suggestions list has been clicked, create a chip from the 1165 * contact information of the selected item. 1166 */ 1167 @Override 1168 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1169 submitItemAtPosition(position); 1170 } 1171 1172 private void submitItemAtPosition(int position) { 1173 RecipientEntry entry = createValidatedEntry( 1174 (RecipientEntry)getAdapter().getItem(position)); 1175 if (entry == null) { 1176 return; 1177 } 1178 clearComposingText(); 1179 1180 int end = getSelectionEnd(); 1181 int start = mTokenizer.findTokenStart(getText(), end); 1182 1183 Editable editable = getText(); 1184 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1185 CharSequence chip = createChip(entry, false); 1186 if (chip != null) { 1187 editable.replace(start, end, chip); 1188 } 1189 } 1190 1191 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1192 if (item == null) { 1193 return null; 1194 } 1195 final RecipientEntry entry; 1196 // If the display name and the address are the same, or if this is a 1197 // valid contact, but the destination is invalid, then make this a fake 1198 // recipient that is editable. 1199 String destination = item.getDestination(); 1200 if (TextUtils.isEmpty(item.getDisplayName()) 1201 || TextUtils.equals(item.getDisplayName(), destination) 1202 || (mValidator != null && !mValidator.isValid(destination))) { 1203 entry = RecipientEntry.constructFakeEntry(destination); 1204 } else { 1205 entry = item; 1206 } 1207 return entry; 1208 } 1209 1210 /** Returns a collection of contact Id for each chip inside this View. */ 1211 /* package */ Collection<Long> getContactIds() { 1212 final Set<Long> result = new HashSet<Long>(); 1213 RecipientChip[] chips = getRecipients(); 1214 if (chips != null) { 1215 for (RecipientChip chip : chips) { 1216 result.add(chip.getContactId()); 1217 } 1218 } 1219 return result; 1220 } 1221 1222 private RecipientChip[] getRecipients() { 1223 return getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1224 } 1225 1226 private RecipientChip[] getSortedRecipients() { 1227 ArrayList<RecipientChip> recipientsList = new ArrayList<RecipientChip>(Arrays 1228 .asList(getRecipients())); 1229 final Spannable spannable = getSpannable(); 1230 Collections.sort(recipientsList, new Comparator<RecipientChip>() { 1231 1232 @Override 1233 public int compare(RecipientChip first, RecipientChip second) { 1234 int firstStart = spannable.getSpanStart(first); 1235 int secondStart = spannable.getSpanStart(second); 1236 if (firstStart < secondStart) { 1237 return -1; 1238 } else if (firstStart > secondStart) { 1239 return 1; 1240 } else { 1241 return 0; 1242 } 1243 } 1244 }); 1245 return recipientsList.toArray(new RecipientChip[recipientsList.size()]); 1246 } 1247 1248 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1249 /* package */ Collection<Long> getDataIds() { 1250 final Set<Long> result = new HashSet<Long>(); 1251 RecipientChip [] chips = getRecipients(); 1252 if (chips != null) { 1253 for (RecipientChip chip : chips) { 1254 result.add(chip.getDataId()); 1255 } 1256 } 1257 return result; 1258 } 1259 1260 1261 @Override 1262 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1263 return false; 1264 } 1265 1266 @Override 1267 public void onDestroyActionMode(ActionMode mode) { 1268 } 1269 1270 @Override 1271 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1272 return false; 1273 } 1274 1275 /** 1276 * No chips are selectable. 1277 */ 1278 @Override 1279 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1280 return false; 1281 } 1282 1283 /** 1284 * Create the more chip. The more chip is text that replaces any chips that 1285 * do not fit in the pre-defined available space when the 1286 * RecipientEditTextView loses focus. 1287 */ 1288 private void createMoreChip() { 1289 if (!mShouldShrink) { 1290 return; 1291 } 1292 1293 ImageSpan[] tempMore = getSpannable().getSpans(0, getText().length(), MoreImageSpan.class); 1294 if (tempMore.length > 0) { 1295 getSpannable().removeSpan(tempMore[0]); 1296 } 1297 RecipientChip[] recipients = getSortedRecipients(); 1298 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1299 mMoreChip = null; 1300 return; 1301 } 1302 Spannable spannable = getSpannable(); 1303 int numRecipients = recipients.length; 1304 int overage = numRecipients - CHIP_LIMIT; 1305 String moreText = String.format(mMoreItem.getText().toString(), overage); 1306 TextPaint morePaint = new TextPaint(getPaint()); 1307 morePaint.setTextSize(mMoreItem.getTextSize()); 1308 morePaint.setColor(mMoreItem.getCurrentTextColor()); 1309 int width = (int)morePaint.measureText(moreText) + mMoreItem.getPaddingLeft() 1310 + mMoreItem.getPaddingRight(); 1311 int height = getLineHeight(); 1312 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1313 Canvas canvas = new Canvas(drawable); 1314 canvas.drawText(moreText, 0, moreText.length(), 0, height - getLayout().getLineDescent(0), 1315 morePaint); 1316 1317 Drawable result = new BitmapDrawable(getResources(), drawable); 1318 result.setBounds(0, 0, width, height); 1319 MoreImageSpan moreSpan = new MoreImageSpan(result); 1320 // Remove the overage chips. 1321 if (recipients == null || recipients.length == 0) { 1322 Log.w(TAG, 1323 "We have recipients. Tt should not be possible to have zero RecipientChips."); 1324 mMoreChip = null; 1325 return; 1326 } 1327 mRemovedSpans = new ArrayList<RecipientChip>(); 1328 int totalReplaceStart = 0; 1329 int totalReplaceEnd = 0; 1330 Editable text = getText(); 1331 for (int i = numRecipients - overage; i < recipients.length; i++) { 1332 mRemovedSpans.add(recipients[i]); 1333 if (i == numRecipients - overage) { 1334 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1335 } 1336 if (i == recipients.length - 1) { 1337 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1338 } 1339 if (mTemporaryRecipients == null || !mTemporaryRecipients.contains(recipients[i])) { 1340 int spanStart = spannable.getSpanStart(recipients[i]); 1341 int spanEnd = spannable.getSpanEnd(recipients[i]); 1342 recipients[i].setOriginalText(text.toString().substring(spanStart, spanEnd)); 1343 } 1344 spannable.removeSpan(recipients[i]); 1345 } 1346 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1347 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1348 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1349 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1350 text.replace(start, end, chipText); 1351 mMoreChip = moreSpan; 1352 } 1353 1354 /** 1355 * Replace the more chip, if it exists, with all of the recipient chips it had 1356 * replaced when the RecipientEditTextView gains focus. 1357 */ 1358 private void removeMoreChip() { 1359 if (mMoreChip != null) { 1360 Spannable span = getSpannable(); 1361 span.removeSpan(mMoreChip); 1362 mMoreChip = null; 1363 // Re-add the spans that were removed. 1364 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1365 // Recreate each removed span. 1366 Editable editable = getText(); 1367 for (RecipientChip chip : mRemovedSpans) { 1368 int chipStart; 1369 int chipEnd; 1370 String token; 1371 // Need to find the location of the chip, again. 1372 token = (String) chip.getOriginalText(); 1373 chipStart = editable.toString().indexOf(token); 1374 // -1 for the space! 1375 chipEnd = Math.min(editable.length(), chipStart + token.length()); 1376 // Only set the span if we found a matching token. 1377 if (chipStart != -1) { 1378 editable.setSpan(chip, chipStart, chipEnd, 1379 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1380 } 1381 } 1382 mRemovedSpans.clear(); 1383 } 1384 } 1385 } 1386 1387 /** 1388 * Show specified chip as selected. If the RecipientChip is just an email address, 1389 * selecting the chip will take the contents of the chip and place it at 1390 * the end of the RecipientEditTextView for inline editing. If the 1391 * RecipientChip is a complete contact, then selecting the chip 1392 * will change the background color of the chip, show the delete icon, 1393 * and a popup window with the address in use highlighted and any other 1394 * alternate addresses for the contact. 1395 * @param currentChip Chip to select. 1396 * @return A RecipientChip in the selected state or null if the chip 1397 * just contained an email address. 1398 */ 1399 public RecipientChip selectChip(RecipientChip currentChip) { 1400 if (currentChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1401 CharSequence text = currentChip.getValue(); 1402 Editable editable = getText(); 1403 removeChip(currentChip); 1404 editable.append(text); 1405 setCursorVisible(true); 1406 setSelection(editable.length()); 1407 return new RecipientChip(null, RecipientEntry.constructFakeEntry((String) text), -1); 1408 } else if (currentChip.getContactId() == RecipientEntry.GENERATED_CONTACT) { 1409 int start = getChipStart(currentChip); 1410 int end = getChipEnd(currentChip); 1411 getSpannable().removeSpan(currentChip); 1412 RecipientChip newChip; 1413 try { 1414 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1415 } catch (NullPointerException e) { 1416 Log.e(TAG, e.getMessage(), e); 1417 return null; 1418 } 1419 Editable editable = getText(); 1420 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1421 if (start == -1 || end == -1) { 1422 Log.d(TAG, "The chip being selected no longer exists but should."); 1423 } else { 1424 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1425 } 1426 newChip.setSelected(true); 1427 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1428 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1429 } 1430 showAddress(newChip, mAddressPopup, getWidth(), getContext()); 1431 setCursorVisible(false); 1432 return newChip; 1433 } else { 1434 int start = getChipStart(currentChip); 1435 int end = getChipEnd(currentChip); 1436 getSpannable().removeSpan(currentChip); 1437 RecipientChip newChip; 1438 try { 1439 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1440 } catch (NullPointerException e) { 1441 Log.e(TAG, e.getMessage(), e); 1442 return null; 1443 } 1444 Editable editable = getText(); 1445 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1446 if (start == -1 || end == -1) { 1447 Log.d(TAG, "The chip being selected no longer exists but should."); 1448 } else { 1449 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1450 } 1451 newChip.setSelected(true); 1452 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1453 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1454 } 1455 showAlternates(newChip, mAlternatesPopup, getWidth(), getContext()); 1456 setCursorVisible(false); 1457 return newChip; 1458 } 1459 } 1460 1461 1462 private void showAddress(final RecipientChip currentChip, final ListPopupWindow popup, 1463 int width, Context context) { 1464 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1465 int bottom = calculateOffsetFromBottom(line); 1466 // Align the alternates popup with the left side of the View, 1467 // regardless of the position of the chip tapped. 1468 popup.setWidth(width); 1469 popup.setAnchorView(this); 1470 popup.setVerticalOffset(bottom); 1471 popup.setAdapter(createSingleAddressAdapter(currentChip)); 1472 popup.setOnItemClickListener(new OnItemClickListener() { 1473 @Override 1474 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1475 unselectChip(currentChip); 1476 popup.dismiss(); 1477 } 1478 }); 1479 popup.show(); 1480 ListView listView = popup.getListView(); 1481 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1482 listView.setItemChecked(0, true); 1483 } 1484 1485 /** 1486 * Remove selection from this chip. Unselecting a RecipientChip will render 1487 * the chip without a delete icon and with an unfocused background. This 1488 * is called when the RecipientChip no longer has focus. 1489 */ 1490 public void unselectChip(RecipientChip chip) { 1491 int start = getChipStart(chip); 1492 int end = getChipEnd(chip); 1493 Editable editable = getText(); 1494 mSelectedChip = null; 1495 if (start == -1 || end == -1) { 1496 Log.e(TAG, "The chip being unselected no longer exists."); 1497 } else { 1498 getSpannable().removeSpan(chip); 1499 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1500 editable.removeSpan(chip); 1501 try { 1502 editable.setSpan(constructChipSpan(chip.getEntry(), start, false), start, end, 1503 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1504 } catch (NullPointerException e) { 1505 Log.e(TAG, e.getMessage(), e); 1506 } 1507 } 1508 setCursorVisible(true); 1509 setSelection(editable.length()); 1510 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1511 mAlternatesPopup.dismiss(); 1512 } 1513 } 1514 1515 1516 /** 1517 * Return whether this chip contains the position passed in. 1518 */ 1519 public boolean matchesChip(RecipientChip chip, int offset) { 1520 int start = getChipStart(chip); 1521 int end = getChipEnd(chip); 1522 if (start == -1 || end == -1) { 1523 return false; 1524 } 1525 return (offset >= start && offset <= end); 1526 } 1527 1528 1529 /** 1530 * Return whether a touch event was inside the delete target of 1531 * a selected chip. It is in the delete target if: 1532 * 1) the x and y points of the event are within the 1533 * delete assset. 1534 * 2) the point tapped would have caused a cursor to appear 1535 * right after the selected chip. 1536 * @return boolean 1537 */ 1538 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1539 // Figure out the bounds of this chip and whether or not 1540 // the user clicked in the X portion. 1541 return chip.isSelected() && offset == getChipEnd(chip); 1542 } 1543 1544 /** 1545 * Remove the chip and any text associated with it from the RecipientEditTextView. 1546 */ 1547 private void removeChip(RecipientChip chip) { 1548 Spannable spannable = getSpannable(); 1549 int spanStart = spannable.getSpanStart(chip); 1550 int spanEnd = spannable.getSpanEnd(chip); 1551 Editable text = getText(); 1552 int toDelete = spanEnd; 1553 boolean wasSelected = chip == mSelectedChip; 1554 // Clear that there is a selected chip before updating any text. 1555 if (wasSelected) { 1556 mSelectedChip = null; 1557 } 1558 // Always remove trailing spaces when removing a chip. 1559 while (toDelete >= 0 && toDelete < text.length() && text.charAt(toDelete) == ' ') { 1560 toDelete++; 1561 } 1562 spannable.removeSpan(chip); 1563 text.delete(spanStart, toDelete); 1564 if (wasSelected) { 1565 clearSelectedChip(); 1566 } 1567 } 1568 1569 /** 1570 * Replace this currently selected chip with a new chip 1571 * that uses the contact data provided. 1572 */ 1573 public void replaceChip(RecipientChip chip, RecipientEntry entry) { 1574 boolean wasSelected = chip == mSelectedChip; 1575 if (wasSelected) { 1576 mSelectedChip = null; 1577 } 1578 int start = getChipStart(chip); 1579 int end = getChipEnd(chip); 1580 getSpannable().removeSpan(chip); 1581 Editable editable = getText(); 1582 CharSequence chipText = createChip(entry, false); 1583 if (start == -1 || end == -1) { 1584 Log.e(TAG, "The chip to replace does not exist but should."); 1585 editable.insert(0, chipText); 1586 } else { 1587 // There may be a space to replace with this chip's new associated 1588 // space. Check for it. 1589 int toReplace = end; 1590 while (toReplace >= 0 && toReplace < editable.length() 1591 && editable.charAt(toReplace) == ' ') { 1592 toReplace++; 1593 } 1594 editable.replace(start, toReplace, chipText); 1595 } 1596 setCursorVisible(true); 1597 if (wasSelected) { 1598 clearSelectedChip(); 1599 } 1600 } 1601 1602 /** 1603 * Handle click events for a chip. When a selected chip receives a click 1604 * event, see if that event was in the delete icon. If so, delete it. 1605 * Otherwise, unselect the chip. 1606 */ 1607 public void onClick(RecipientChip chip, int offset, float x, float y) { 1608 if (chip.isSelected()) { 1609 if (isInDelete(chip, offset, x, y)) { 1610 removeChip(chip); 1611 } else { 1612 clearSelectedChip(); 1613 } 1614 } 1615 } 1616 1617 private boolean chipsPending() { 1618 return mPendingChipsCount > 0 || (mRemovedSpans != null && mRemovedSpans.size() > 0); 1619 } 1620 1621 @Override 1622 public void removeTextChangedListener(TextWatcher watcher) { 1623 mTextWatcher = null; 1624 super.removeTextChangedListener(watcher); 1625 } 1626 1627 private class RecipientTextWatcher implements TextWatcher { 1628 @Override 1629 public void afterTextChanged(Editable s) { 1630 // If the text has been set to null or empty, make sure we remove 1631 // all the spans we applied. 1632 if (TextUtils.isEmpty(s)) { 1633 // Remove all the chips spans. 1634 Spannable spannable = getSpannable(); 1635 RecipientChip[] chips = spannable.getSpans(0, getText().length(), 1636 RecipientChip.class); 1637 for (RecipientChip chip : chips) { 1638 spannable.removeSpan(chip); 1639 } 1640 if (mMoreChip != null) { 1641 spannable.removeSpan(mMoreChip); 1642 } 1643 return; 1644 } 1645 // Get whether there are any recipients pending addition to the 1646 // view. If there are, don't do anything in the text watcher. 1647 if (chipsPending()) { 1648 return; 1649 } 1650 if (mSelectedChip != null) { 1651 setCursorVisible(true); 1652 setSelection(getText().length()); 1653 clearSelectedChip(); 1654 } 1655 int length = s.length(); 1656 // Make sure there is content there to parse and that it is 1657 // not just the commit character. 1658 if (length > 1) { 1659 char last; 1660 int end = getSelectionEnd() == 0 ? 0 : getSelectionEnd() - 1; 1661 int len = length() - 1; 1662 if (end != len) { 1663 last = s.charAt(end); 1664 } else { 1665 last = s.charAt(len); 1666 } 1667 if (last == COMMIT_CHAR_SEMICOLON || last == COMMIT_CHAR_COMMA) { 1668 commitByCharacter(); 1669 } else if (last == COMMIT_CHAR_SPACE) { 1670 // Check if this is a valid email address. If it is, 1671 // commit it. 1672 String text = getText().toString(); 1673 int tokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 1674 String sub = text.substring(tokenStart, mTokenizer.findTokenEnd(text, 1675 tokenStart)); 1676 if (mValidator != null && mValidator.isValid(sub)) { 1677 commitByCharacter(); 1678 } 1679 } 1680 } 1681 } 1682 1683 @Override 1684 public void onTextChanged(CharSequence s, int start, int before, int count) { 1685 // Do nothing. 1686 } 1687 1688 @Override 1689 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 1690 } 1691 } 1692 1693 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 1694 private RecipientChip createFreeChip(RecipientEntry entry) { 1695 String displayText = entry.getDestination(); 1696 if (displayText.indexOf(",") == -1) { 1697 displayText = (String) mTokenizer.terminateToken(displayText); 1698 } 1699 try { 1700 return constructChipSpan(entry, -1, false); 1701 } catch (NullPointerException e) { 1702 Log.e(TAG, e.getMessage(), e); 1703 return null; 1704 } 1705 } 1706 1707 @Override 1708 protected Void doInBackground(Void... params) { 1709 if (mIndividualReplacements != null) { 1710 mIndividualReplacements.cancel(true); 1711 } 1712 // For each chip in the list, look up the matching contact. 1713 // If there is a match, replace that chip with the matching 1714 // chip. 1715 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 1716 RecipientChip[] existingChips = getSortedRecipients(); 1717 for (int i = 0; i < existingChips.length; i++) { 1718 originalRecipients.add(existingChips[i]); 1719 } 1720 if (mRemovedSpans != null) { 1721 originalRecipients.addAll(mRemovedSpans); 1722 } 1723 String[] addresses = new String[originalRecipients.size()]; 1724 for (int i = 0; i < originalRecipients.size(); i++) { 1725 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1726 } 1727 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1728 .getMatchingRecipients(getContext(), addresses); 1729 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 1730 for (final RecipientChip temp : originalRecipients) { 1731 RecipientEntry entry = null; 1732 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1733 && getSpannable().getSpanStart(temp) != -1) { 1734 // Replace this. 1735 entry = createValidatedEntry(entries.get(tokenizeAddress(temp.getEntry() 1736 .getDestination()))); 1737 } 1738 if (entry != null) { 1739 replacements.add(createFreeChip(entry)); 1740 } else { 1741 replacements.add(temp); 1742 } 1743 } 1744 if (replacements != null && replacements.size() > 0) { 1745 mHandler.post(new Runnable() { 1746 @Override 1747 public void run() { 1748 SpannableStringBuilder text = new SpannableStringBuilder(getText() 1749 .toString()); 1750 Editable oldText = getText(); 1751 int start, end; 1752 int i = 0; 1753 for (RecipientChip chip : originalRecipients) { 1754 start = oldText.getSpanStart(chip); 1755 if (start != -1) { 1756 end = oldText.getSpanEnd(chip); 1757 text.removeSpan(chip); 1758 // Leave a spot for the space! 1759 RecipientChip replacement = replacements.get(i); 1760 text.setSpan(replacement, start, end, 1761 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1762 replacement.setOriginalText(text.toString().substring(start, end)); 1763 } 1764 i++; 1765 } 1766 Editable editable = getText(); 1767 editable.clear(); 1768 editable.insert(0, text); 1769 originalRecipients.clear(); 1770 } 1771 }); 1772 } 1773 return null; 1774 } 1775 } 1776 1777 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 1778 @SuppressWarnings("unchecked") 1779 @Override 1780 protected Void doInBackground(Object... params) { 1781 // For each chip in the list, look up the matching contact. 1782 // If there is a match, replace that chip with the matching 1783 // chip. 1784 final ArrayList<RecipientChip> originalRecipients = 1785 (ArrayList<RecipientChip>) params[0]; 1786 String[] addresses = new String[originalRecipients.size()]; 1787 for (int i = 0; i < originalRecipients.size(); i++) { 1788 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1789 } 1790 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1791 .getMatchingRecipients(getContext(), addresses); 1792 for (final RecipientChip temp : originalRecipients) { 1793 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1794 && getSpannable().getSpanStart(temp) != -1) { 1795 // Replace this. 1796 final RecipientEntry entry = createValidatedEntry(entries 1797 .get(tokenizeAddress(temp.getEntry().getDestination()))); 1798 if (entry != null) { 1799 mHandler.post(new Runnable() { 1800 @Override 1801 public void run() { 1802 replaceChip(temp, entry); 1803 } 1804 }); 1805 } 1806 } 1807 } 1808 return null; 1809 } 1810 } 1811 1812 1813 /** 1814 * MoreImageSpan is a simple class created for tracking the existence of a 1815 * more chip across activity restarts/ 1816 */ 1817 private class MoreImageSpan extends ImageSpan { 1818 public MoreImageSpan(Drawable b) { 1819 super(b); 1820 } 1821 } 1822 1823 @Override 1824 public boolean onDown(MotionEvent e) { 1825 return false; 1826 } 1827 1828 @Override 1829 public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { 1830 // Do nothing. 1831 return false; 1832 } 1833 1834 @Override 1835 public void onLongPress(MotionEvent event) { 1836 if (mSelectedChip != null) { 1837 return; 1838 } 1839 float x = event.getX(); 1840 float y = event.getY(); 1841 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 1842 RecipientChip currentChip = findChip(offset); 1843 if (currentChip != null) { 1844 // Copy the selected chip email address. 1845 showCopyDialog(currentChip.getEntry().getDestination()); 1846 } 1847 } 1848 1849 private void showCopyDialog(final String address) { 1850 mCopyAddress = address; 1851 mCopyDialog.setTitle(address); 1852 mCopyDialog.setContentView(mCopyViewRes); 1853 mCopyDialog.setCancelable(true); 1854 mCopyDialog.setCanceledOnTouchOutside(true); 1855 mCopyDialog.findViewById(android.R.id.button1).setOnClickListener(this); 1856 mCopyDialog.setOnDismissListener(this); 1857 mCopyDialog.show(); 1858 } 1859 1860 @Override 1861 public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) { 1862 // Do nothing. 1863 return false; 1864 } 1865 1866 @Override 1867 public void onShowPress(MotionEvent e) { 1868 // Do nothing. 1869 } 1870 1871 @Override 1872 public boolean onSingleTapUp(MotionEvent e) { 1873 // Do nothing. 1874 return false; 1875 } 1876 1877 @Override 1878 public void onDismiss(DialogInterface dialog) { 1879 mCopyAddress = null; 1880 } 1881 1882 @Override 1883 public void onClick(View v) { 1884 // Copy this to the clipboard. 1885 ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService( 1886 Context.CLIPBOARD_SERVICE); 1887 clipboard.setPrimaryClip(ClipData.newPlainText("", mCopyAddress)); 1888 mCopyDialog.dismiss(); 1889 } 1890} 1891