RecipientEditTextView.java revision fe52b97e748ec0b9bd44b759780ed42b9dcee7ff
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.PopupWindow; 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 PopupWindow.OnDismissListener { 91 92 private static final String TAG = "RecipientEditTextView"; 93 94 // TODO: get correct number/ algorithm from with UX. 95 private static final int CHIP_LIMIT = 2; 96 97 private Drawable mChipBackground = null; 98 99 private Drawable mChipDelete = null; 100 101 private int mChipPadding; 102 103 private Tokenizer mTokenizer; 104 105 private Drawable mChipBackgroundPressed; 106 107 private RecipientChip mSelectedChip; 108 109 private int mAlternatesLayout; 110 111 private Bitmap mDefaultContactPhoto; 112 113 private ImageSpan mMoreChip; 114 115 private TextView mMoreItem; 116 117 private final ArrayList<String> mPendingChips = new ArrayList<String>(); 118 119 private float mChipHeight; 120 121 private float mChipFontSize; 122 123 private Validator mValidator; 124 125 private Drawable mInvalidChipBackground; 126 127 private Handler mHandler; 128 129 private static int DISMISS = "dismiss".hashCode(); 130 131 private static final long DISMISS_DELAY = 300; 132 133 private int mPendingChipsCount = 0; 134 135 private static int sSelectedTextColor = -1; 136 137 private static final char COMMIT_CHAR_COMMA = ','; 138 139 private static final char COMMIT_CHAR_SEMICOLON = ';'; 140 141 private static final char COMMIT_CHAR_SPACE = ' '; 142 143 private ListPopupWindow mAlternatesPopup; 144 145 private ListPopupWindow mAddressPopup; 146 147 private ArrayList<RecipientChip> mTemporaryRecipients; 148 149 private ArrayList<RecipientChip> mRemovedSpans; 150 151 private boolean mShouldShrink = true; 152 153 // Chip copy fields. 154 private GestureDetector mGestureDetector; 155 156 private Dialog mCopyDialog; 157 158 private int mCopyViewRes; 159 160 private String mCopyAddress; 161 162 /** 163 * Used with {@link #mAlternatesPopup}. Handles clicks to alternate addresses for a 164 * selected chip. 165 */ 166 private OnItemClickListener mAlternatesListener; 167 168 private int mCheckedItem; 169 private TextWatcher mTextWatcher; 170 171 private ScrollView mScrollView; 172 173 private boolean mTried; 174 175 private final Runnable mAddTextWatcher = new Runnable() { 176 @Override 177 public void run() { 178 if (mTextWatcher == null) { 179 mTextWatcher = new RecipientTextWatcher(); 180 addTextChangedListener(mTextWatcher); 181 } 182 } 183 }; 184 185 private IndividualReplacementTask mIndividualReplacements; 186 187 private Runnable mHandlePendingChips = new Runnable() { 188 189 @Override 190 public void run() { 191 handlePendingChips(); 192 } 193 194 }; 195 196 public RecipientEditTextView(Context context, AttributeSet attrs) { 197 super(context, attrs); 198 if (sSelectedTextColor == -1) { 199 sSelectedTextColor = context.getResources().getColor(android.R.color.white); 200 } 201 mAlternatesPopup = new ListPopupWindow(context); 202 mAlternatesPopup.setOnDismissListener(this); 203 mAddressPopup = new ListPopupWindow(context); 204 mAddressPopup.setOnDismissListener(this); 205 mCopyDialog = new Dialog(context); 206 mAlternatesListener = new OnItemClickListener() { 207 @Override 208 public void onItemClick(AdapterView<?> adapterView,View view, int position, 209 long rowId) { 210 mAlternatesPopup.setOnItemClickListener(null); 211 setEnabled(true); 212 replaceChip(mSelectedChip, ((RecipientAlternatesAdapter) adapterView.getAdapter()) 213 .getRecipientEntry(position)); 214 Message delayed = Message.obtain(mHandler, DISMISS); 215 delayed.obj = mAlternatesPopup; 216 mHandler.sendMessageDelayed(delayed, DISMISS_DELAY); 217 clearComposingText(); 218 } 219 }; 220 setInputType(getInputType() | InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS); 221 setOnItemClickListener(this); 222 setCustomSelectionActionModeCallback(this); 223 mHandler = new Handler() { 224 @Override 225 public void handleMessage(Message msg) { 226 if (msg.what == DISMISS) { 227 ((ListPopupWindow) msg.obj).dismiss(); 228 return; 229 } 230 super.handleMessage(msg); 231 } 232 }; 233 mTextWatcher = new RecipientTextWatcher(); 234 addTextChangedListener(mTextWatcher); 235 mGestureDetector = new GestureDetector(context, this); 236 } 237 238 @Override 239 public <T extends ListAdapter & Filterable> void setAdapter(T adapter) { 240 super.setAdapter(adapter); 241 if (adapter == null) { 242 return; 243 } 244 } 245 246 @Override 247 public void onSelectionChanged(int start, int end) { 248 // When selection changes, see if it is inside the chips area. 249 // If so, move the cursor back after the chips again. 250 Spannable span = getSpannable(); 251 int textLength = getText().length(); 252 RecipientChip[] chips = span.getSpans(start, textLength, RecipientChip.class); 253 if (chips != null && chips.length > 0) { 254 if (chips != null && chips.length > 0) { 255 // Grab the last chip and set the cursor to after it. 256 setSelection(Math.min(span.getSpanEnd(chips[chips.length - 1]) + 1, textLength)); 257 } 258 } 259 super.onSelectionChanged(start, end); 260 } 261 262 /** 263 * Convenience method: Append the specified text slice to the TextView's 264 * display buffer, upgrading it to BufferType.EDITABLE if it was 265 * not already editable. Commas are excluded as they are added automatically 266 * by the view. 267 */ 268 @Override 269 public void append(CharSequence text, int start, int end) { 270 // We don't care about watching text changes while appending. 271 if (mTextWatcher != null) { 272 removeTextChangedListener(mTextWatcher); 273 } 274 super.append(text, start, end); 275 if (!TextUtils.isEmpty(text) && TextUtils.getTrimmedLength(text) > 0) { 276 final String displayString = (String) text; 277 int seperatorPos = displayString.indexOf(COMMIT_CHAR_COMMA); 278 if (seperatorPos != 0 && !TextUtils.isEmpty(displayString) 279 && TextUtils.getTrimmedLength(displayString) > 0) { 280 mPendingChipsCount++; 281 mPendingChips.add((String)text); 282 } 283 } 284 // Put a message on the queue to make sure we ALWAYS handle pending chips. 285 if (mPendingChipsCount > 0) { 286 postHandlePendingChips(); 287 } 288 mHandler.post(mAddTextWatcher); 289 } 290 291 @Override 292 public void onFocusChanged(boolean hasFocus, int direction, Rect previous) { 293 super.onFocusChanged(hasFocus, direction, previous); 294 if (!hasFocus) { 295 shrink(); 296 } else { 297 expand(); 298 scrollLineIntoView(getLineCount()); 299 } 300 } 301 302 @Override 303 public void performValidation() { 304 // Do nothing. Chips handles its own validation. 305 } 306 307 private void shrink() { 308 if (mSelectedChip != null 309 && mSelectedChip.getEntry().getContactId() != RecipientEntry.INVALID_CONTACT) { 310 clearSelectedChip(); 311 } else { 312 // Reset any pending chips as they would have been handled 313 // when the field lost focus. 314 if (mPendingChipsCount > 0) { 315 postHandlePendingChips(); 316 } else { 317 Editable editable = getText(); 318 int end = getSelectionEnd(); 319 int start = mTokenizer.findTokenStart(editable, end); 320 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 321 if ((chips == null || chips.length == 0)) { 322 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 323 // In the middle of chip; treat this as an edit 324 // and commit the whole token. 325 if (whatEnd != getSelectionEnd()) { 326 handleEdit(start, whatEnd); 327 } else { 328 commitChip(start, end, editable); 329 } 330 } 331 } 332 mHandler.post(mAddTextWatcher); 333 } 334 createMoreChip(); 335 } 336 337 private void expand() { 338 removeMoreChip(); 339 setCursorVisible(true); 340 Editable text = getText(); 341 setSelection(text != null && text.length() > 0 ? text.length() : 0); 342 // If there are any temporary chips, try replacing them now that the user 343 // has expanded the field. 344 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0) { 345 new RecipientReplacementTask().execute(); 346 mTemporaryRecipients = null; 347 } 348 } 349 350 private CharSequence ellipsizeText(CharSequence text, TextPaint paint, float maxWidth) { 351 paint.setTextSize(mChipFontSize); 352 if (maxWidth <= 0 && Log.isLoggable(TAG, Log.DEBUG)) { 353 Log.d(TAG, "Max width is negative: " + maxWidth); 354 } 355 return TextUtils.ellipsize(text, paint, maxWidth, 356 TextUtils.TruncateAt.END); 357 } 358 359 private Bitmap createSelectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 360 // Ellipsize the text so that it takes AT MOST the entire width of the 361 // autocomplete text entry area. Make sure to leave space for padding 362 // on the sides. 363 int height = (int) mChipHeight; 364 int deleteWidth = height; 365 CharSequence ellipsizedText = ellipsizeText(contact.getDisplayName(), paint, 366 calculateAvailableWidth(true) - deleteWidth); 367 368 // Make sure there is a minimum chip width so the user can ALWAYS 369 // tap a chip without difficulty. 370 int width = Math.max(deleteWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 371 ellipsizedText.length())) 372 + (mChipPadding * 2) + deleteWidth); 373 374 // Create the background of the chip. 375 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 376 Canvas canvas = new Canvas(tmpBitmap); 377 if (mChipBackgroundPressed != null) { 378 mChipBackgroundPressed.setBounds(0, 0, width, height); 379 mChipBackgroundPressed.draw(canvas); 380 paint.setColor(sSelectedTextColor); 381 // Vertically center the text in the chip. 382 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 383 getTextYOffset((String) ellipsizedText, paint, height), paint); 384 // Make the delete a square. 385 Rect backgroundPadding = new Rect(); 386 mChipBackgroundPressed.getPadding(backgroundPadding); 387 mChipDelete.setBounds(width - deleteWidth + backgroundPadding.left, 388 0 + backgroundPadding.top, 389 width - backgroundPadding.right, 390 height - backgroundPadding.bottom); 391 mChipDelete.draw(canvas); 392 } else { 393 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 394 } 395 return tmpBitmap; 396 } 397 398 /** 399 * Get the background drawable for a RecipientChip. 400 */ 401 public Drawable getChipBackground(RecipientEntry contact) { 402 return (mValidator != null && mValidator.isValid(contact.getDestination())) ? 403 mChipBackground : mInvalidChipBackground; 404 } 405 406 private Bitmap createUnselectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 407 // Ellipsize the text so that it takes AT MOST the entire width of the 408 // autocomplete text entry area. Make sure to leave space for padding 409 // on the sides. 410 int height = (int) mChipHeight; 411 int iconWidth = height; 412 String displayText = 413 !TextUtils.isEmpty(contact.getDisplayName()) ? contact.getDisplayName() : 414 !TextUtils.isEmpty(contact.getDestination()) ? contact.getDestination() : ""; 415 CharSequence ellipsizedText = ellipsizeText(displayText, paint, 416 calculateAvailableWidth(false) - iconWidth); 417 // Make sure there is a minimum chip width so the user can ALWAYS 418 // tap a chip without difficulty. 419 int width = Math.max(iconWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 420 ellipsizedText.length())) 421 + (mChipPadding * 2) + iconWidth); 422 423 // Create the background of the chip. 424 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 425 Canvas canvas = new Canvas(tmpBitmap); 426 Drawable background = getChipBackground(contact); 427 if (background != null) { 428 background.setBounds(0, 0, width, height); 429 background.draw(canvas); 430 431 // Don't draw photos for recipients that have been typed in. 432 if (contact.getContactId() != RecipientEntry.INVALID_CONTACT) { 433 byte[] photoBytes = contact.getPhotoBytes(); 434 // There may not be a photo yet if anything but the first contact address 435 // was selected. 436 if (photoBytes == null && contact.getPhotoThumbnailUri() != null) { 437 // TODO: cache this in the recipient entry? 438 ((BaseRecipientAdapter) getAdapter()).fetchPhoto(contact, contact 439 .getPhotoThumbnailUri()); 440 photoBytes = contact.getPhotoBytes(); 441 } 442 443 Bitmap photo; 444 if (photoBytes != null) { 445 photo = BitmapFactory.decodeByteArray(photoBytes, 0, photoBytes.length); 446 } else { 447 // TODO: can the scaled down default photo be cached? 448 photo = mDefaultContactPhoto; 449 } 450 // Draw the photo on the left side. 451 Matrix matrix = new Matrix(); 452 RectF src = new RectF(0, 0, photo.getWidth(), photo.getHeight()); 453 Rect backgroundPadding = new Rect(); 454 mChipBackground.getPadding(backgroundPadding); 455 RectF dst = new RectF(width - iconWidth + backgroundPadding.left, 456 0 + backgroundPadding.top, 457 width - backgroundPadding.right, 458 height - backgroundPadding.bottom); 459 matrix.setRectToRect(src, dst, Matrix.ScaleToFit.FILL); 460 canvas.drawBitmap(photo, matrix, paint); 461 } else { 462 // Don't leave any space for the icon. It isn't being drawn. 463 iconWidth = 0; 464 } 465 paint.setColor(getContext().getResources().getColor(android.R.color.black)); 466 // Vertically center the text in the chip. 467 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 468 getTextYOffset((String)ellipsizedText, paint, height), paint); 469 } else { 470 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 471 } 472 return tmpBitmap; 473 } 474 475 private float getTextYOffset(String text, TextPaint paint, int height) { 476 Rect bounds = new Rect(); 477 paint.getTextBounds((String)text, 0, text.length(), bounds); 478 int textHeight = bounds.bottom - bounds.top - (int)paint.descent(); 479 return height - ((height - textHeight) / 2); 480 } 481 482 public RecipientChip constructChipSpan(RecipientEntry contact, int offset, boolean pressed) 483 throws NullPointerException { 484 if (mChipBackground == null) { 485 throw new NullPointerException( 486 "Unable to render any chips as setChipDimensions was not called."); 487 } 488 Layout layout = getLayout(); 489 490 TextPaint paint = getPaint(); 491 float defaultSize = paint.getTextSize(); 492 int defaultColor = paint.getColor(); 493 494 Bitmap tmpBitmap; 495 if (pressed) { 496 tmpBitmap = createSelectedChip(contact, paint, layout); 497 498 } else { 499 tmpBitmap = createUnselectedChip(contact, paint, layout); 500 } 501 502 // Pass the full text, un-ellipsized, to the chip. 503 Drawable result = new BitmapDrawable(getResources(), tmpBitmap); 504 result.setBounds(0, 0, tmpBitmap.getWidth(), tmpBitmap.getHeight()); 505 RecipientChip recipientChip = new RecipientChip(result, contact, offset); 506 // Return text to the original size. 507 paint.setTextSize(defaultSize); 508 paint.setColor(defaultColor); 509 return recipientChip; 510 } 511 512 /** 513 * Calculate the bottom of the line the chip will be located on using: 514 * 1) which line the chip appears on 515 * 2) the height of a chip 516 * 3) padding built into the edit text view 517 */ 518 private int calculateOffsetFromBottom(int line) { 519 // Line offsets start at zero. 520 int actualLine = getLineCount() - (line + 1); 521 return -((actualLine * ((int) mChipHeight) + getPaddingBottom()) + getPaddingTop()) 522 + getDropDownVerticalOffset(); 523 } 524 525 /** 526 * Get the max amount of space a chip can take up. The formula takes into 527 * account the width of the EditTextView, any view padding, and padding 528 * that will be added to the chip. 529 */ 530 private float calculateAvailableWidth(boolean pressed) { 531 return getWidth() - getPaddingLeft() - getPaddingRight() - (mChipPadding * 2); 532 } 533 534 /** 535 * Set all chip dimensions and resources. This has to be done from the 536 * application as this is a static library. 537 * @param chipBackground 538 * @param chipBackgroundPressed 539 * @param invalidChip 540 * @param chipDelete 541 * @param defaultContact 542 * @param moreResource 543 * @param alternatesLayout 544 * @param chipHeight 545 * @param padding Padding around the text in a chip 546 * @param chipFontSize 547 * @param copyViewRes 548 */ 549 public void setChipDimensions(Drawable chipBackground, Drawable chipBackgroundPressed, 550 Drawable invalidChip, Drawable chipDelete, Bitmap defaultContact, int moreResource, 551 int alternatesLayout, float chipHeight, float padding, 552 float chipFontSize, int copyViewRes) { 553 mChipBackground = chipBackground; 554 mChipBackgroundPressed = chipBackgroundPressed; 555 mChipDelete = chipDelete; 556 mChipPadding = (int) padding; 557 mAlternatesLayout = alternatesLayout; 558 mDefaultContactPhoto = defaultContact; 559 mMoreItem = (TextView) LayoutInflater.from(getContext()).inflate(moreResource, null); 560 mChipHeight = chipHeight; 561 mChipFontSize = chipFontSize; 562 mInvalidChipBackground = invalidChip; 563 mCopyViewRes = copyViewRes; 564 } 565 566 /** 567 * Set whether to shrink the recipients field such that at most 568 * one line of recipients chips are shown when the field loses 569 * focus. By default, the number of displayed recipients will be 570 * limited and a "more" chip will be shown when focus is lost. 571 * @param shrink 572 */ 573 public void setOnFocusListShrinkRecipients(boolean shrink) { 574 mShouldShrink = shrink; 575 } 576 577 @Override 578 public void onSizeChanged(int width, int height, int oldw, int oldh) { 579 super.onSizeChanged(width, height, oldw, oldh); 580 if (width != 0 && height != 0 && mPendingChipsCount > 0) { 581 postHandlePendingChips(); 582 } 583 // Try to find the scroll view parent, if it exists. 584 if (mScrollView == null && !mTried) { 585 ViewParent parent = getParent(); 586 while (parent != null && !(parent instanceof ScrollView)) { 587 parent = parent.getParent(); 588 } 589 if (parent != null) { 590 mScrollView = (ScrollView) parent; 591 } 592 mTried = true; 593 } 594 } 595 596 private void postHandlePendingChips() { 597 mHandler.removeCallbacks(mHandlePendingChips); 598 mHandler.post(mHandlePendingChips); 599 } 600 601 private void handlePendingChips() { 602 if (mPendingChipsCount <= 0) { 603 return; 604 } 605 if (getWidth() <= 0) { 606 // The widget has not been sized yet. 607 // This will be called as a result of onSizeChanged 608 // at a later point. 609 return; 610 } 611 synchronized (mPendingChips) { 612 mTemporaryRecipients = new ArrayList<RecipientChip>(mPendingChipsCount); 613 Editable editable = getText(); 614 // Tokenize! 615 for (int i = 0; i < mPendingChips.size(); i++) { 616 String current = mPendingChips.get(i); 617 int tokenStart = editable.toString().indexOf(current); 618 int tokenEnd = tokenStart + current.length(); 619 if (tokenStart >= 0) { 620 // When we have a valid token, include it with the token 621 // to the left. 622 if (tokenEnd < editable.length() - 2 623 && editable.charAt(tokenEnd) == COMMIT_CHAR_COMMA) { 624 tokenEnd++; 625 } 626 createReplacementChip(tokenStart, tokenEnd, editable); 627 } 628 mPendingChipsCount--; 629 } 630 sanitizeSpannable(); 631 if (mTemporaryRecipients != null 632 && mTemporaryRecipients.size() <= RecipientAlternatesAdapter.MAX_LOOKUPS) { 633 if (hasFocus() || mTemporaryRecipients.size() < CHIP_LIMIT) { 634 new RecipientReplacementTask().execute(); 635 mTemporaryRecipients = null; 636 } else { 637 // Create the "more" chip 638 mIndividualReplacements = new IndividualReplacementTask(); 639 mIndividualReplacements.execute(new ArrayList<RecipientChip>( 640 mTemporaryRecipients.subList(0, CHIP_LIMIT))); 641 642 createMoreChip(); 643 } 644 } else { 645 // There are too many recipients to look up, so just fall back 646 // to 647 // showing addresses for all of them. 648 mTemporaryRecipients = null; 649 createMoreChip(); 650 } 651 mPendingChipsCount = 0; 652 mPendingChips.clear(); 653 } 654 } 655 656 /** 657 * Remove any characters after the last valid chip. 658 */ 659 private void sanitizeSpannable() { 660 // Find the last chip; eliminate any commit characters after it. 661 RecipientChip[] chips = getRecipients(); 662 if (chips != null && chips.length > 0) { 663 int end; 664 ImageSpan lastSpan; 665 if (mMoreChip != null) { 666 lastSpan = mMoreChip; 667 } else { 668 lastSpan = chips[chips.length - 1]; 669 } 670 end = getSpannable().getSpanEnd(lastSpan); 671 Editable editable = getText(); 672 int length = editable.length(); 673 if (length > end) { 674 // See what characters occur after that and eliminate them. 675 if (Log.isLoggable(TAG, Log.DEBUG)) { 676 Log.d(TAG, "There were extra characters after the last tokenizable entry." 677 + editable); 678 } 679 editable.delete(end + 1, length); 680 } 681 } 682 } 683 684 /** 685 * Create a chip that represents just the email address of a recipient. At some later 686 * point, this chip will be attached to a real contact entry, if one exists. 687 */ 688 private void createReplacementChip(int tokenStart, int tokenEnd, Editable editable) { 689 if (alreadyHasChip(tokenStart, tokenEnd)) { 690 // There is already a chip present at this location. 691 // Don't recreate it. 692 return; 693 } 694 String token = editable.toString().substring(tokenStart, tokenEnd); 695 int commitCharIndex = token.trim().lastIndexOf(COMMIT_CHAR_COMMA); 696 if (commitCharIndex == token.length() - 1) { 697 token = token.substring(0, token.length() - 1); 698 } 699 RecipientEntry entry = createTokenizedEntry(token); 700 if (entry != null) { 701 String destText = entry.getDestination(); 702 destText = (String) mTokenizer.terminateToken(destText); 703 // Always leave a blank space at the end of a chip. 704 int textLength = destText.length() - 1; 705 SpannableString chipText = new SpannableString(destText); 706 int end = getSelectionEnd(); 707 int start = mTokenizer.findTokenStart(getText(), end); 708 RecipientChip chip = null; 709 try { 710 chip = constructChipSpan(entry, start, false); 711 chipText.setSpan(chip, 0, textLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 712 } catch (NullPointerException e) { 713 Log.e(TAG, e.getMessage(), e); 714 } 715 716 editable.replace(tokenStart, tokenEnd, chipText); 717 // Add this chip to the list of entries "to replace" 718 if (chip != null) { 719 chip.setOriginalText(chipText.toString()); 720 mTemporaryRecipients.add(chip); 721 } 722 } 723 } 724 725 private RecipientEntry createTokenizedEntry(String token) { 726 if (TextUtils.isEmpty(token)) { 727 return null; 728 } 729 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(token); 730 String display = null; 731 if (isValid(token) && tokens != null && tokens.length > 0) { 732 // If we can get a name from tokenizing, then generate an entry from 733 // this. 734 display = tokens[0].getName(); 735 if (!TextUtils.isEmpty(display)) { 736 return RecipientEntry.constructGeneratedEntry(display, token); 737 } else { 738 display = tokens[0].getAddress(); 739 if (!TextUtils.isEmpty(display)) { 740 return RecipientEntry.constructFakeEntry(display); 741 } 742 } 743 } 744 // Unable to validate the token or to create a valid token from it. 745 // Just create a chip the user can edit. 746 if (mValidator != null && !mValidator.isValid(token)) { 747 // Try fixing up the entry using the validator. 748 token = mValidator.fixText(token).toString(); 749 if (!TextUtils.isEmpty(token)) { 750 // protect against the case of a validator with a null domain, 751 // which doesn't add a domain to the token 752 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(token); 753 if (tokenized.length > 0) { 754 token = tokenized[0].getAddress(); 755 } 756 } 757 } 758 // Otherwise, fallback to just creating an editable email address chip. 759 return RecipientEntry.constructFakeEntry(token); 760 } 761 762 private boolean isValid(String text) { 763 return mValidator == null ? true : mValidator.isValid(text); 764 } 765 766 private String tokenizeAddress(String destination) { 767 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(destination); 768 if (tokens != null && tokens.length > 0) { 769 return tokens[0].getAddress(); 770 } 771 return destination; 772 } 773 774 @Override 775 public void setTokenizer(Tokenizer tokenizer) { 776 mTokenizer = tokenizer; 777 super.setTokenizer(mTokenizer); 778 } 779 780 @Override 781 public void setValidator(Validator validator) { 782 mValidator = validator; 783 super.setValidator(validator); 784 } 785 786 /** 787 * We cannot use the default mechanism for replaceText. Instead, 788 * we override onItemClickListener so we can get all the associated 789 * contact information including display text, address, and id. 790 */ 791 @Override 792 protected void replaceText(CharSequence text) { 793 return; 794 } 795 796 /** 797 * Dismiss any selected chips when the back key is pressed. 798 */ 799 @Override 800 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 801 if (keyCode == KeyEvent.KEYCODE_BACK) { 802 clearSelectedChip(); 803 } 804 return super.onKeyPreIme(keyCode, event); 805 } 806 807 /** 808 * Monitor key presses in this view to see if the user types 809 * any commit keys, which consist of ENTER, TAB, or DPAD_CENTER. 810 * If the user has entered text that has contact matches and types 811 * a commit key, create a chip from the topmost matching contact. 812 * If the user has entered text that has no contact matches and types 813 * a commit key, then create a chip from the text they have entered. 814 */ 815 @Override 816 public boolean onKeyUp(int keyCode, KeyEvent event) { 817 switch (keyCode) { 818 case KeyEvent.KEYCODE_ENTER: 819 case KeyEvent.KEYCODE_DPAD_CENTER: 820 if (event.hasNoModifiers()) { 821 if (commitDefault()) { 822 return true; 823 } 824 if (mSelectedChip != null) { 825 clearSelectedChip(); 826 return true; 827 } else if (focusNext()) { 828 return true; 829 } 830 } 831 break; 832 case KeyEvent.KEYCODE_TAB: 833 if (event.hasNoModifiers()) { 834 if (mSelectedChip != null) { 835 clearSelectedChip(); 836 } else { 837 commitDefault(); 838 } 839 if (focusNext()) { 840 return true; 841 } 842 } 843 } 844 return super.onKeyUp(keyCode, event); 845 } 846 847 private boolean focusNext() { 848 View next = focusSearch(View.FOCUS_DOWN); 849 if (next != null) { 850 next.requestFocus(); 851 return true; 852 } 853 return false; 854 } 855 856 /** 857 * Create a chip from the default selection. If the popup is showing, the 858 * default is the first item in the popup suggestions list. Otherwise, it is 859 * whatever the user had typed in. End represents where the the tokenizer 860 * should search for a token to turn into a chip. 861 * @return If a chip was created from a real contact. 862 */ 863 private boolean commitDefault() { 864 Editable editable = getText(); 865 int end = getSelectionEnd(); 866 int start = mTokenizer.findTokenStart(editable, end); 867 868 if (shouldCreateChip(start, end)) { 869 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 870 // In the middle of chip; treat this as an edit 871 // and commit the whole token. 872 if (whatEnd != getSelectionEnd()) { 873 handleEdit(start, whatEnd); 874 return true; 875 } 876 return commitChip(start, end , editable); 877 } 878 return false; 879 } 880 881 private void commitByCharacter() { 882 Editable editable = getText(); 883 int end = getSelectionEnd(); 884 int start = mTokenizer.findTokenStart(editable, end); 885 if (shouldCreateChip(start, end)) { 886 commitChip(start, end, editable); 887 } 888 setSelection(getText().length()); 889 } 890 891 private boolean commitChip(int start, int end, Editable editable) { 892 if (getAdapter().getCount() > 0 && enoughToFilter()) { 893 // choose the first entry. 894 submitItemAtPosition(0); 895 dismissDropDown(); 896 return true; 897 } else { 898 int tokenEnd = mTokenizer.findTokenEnd(editable, start); 899 String text = editable.toString().substring(start, tokenEnd).trim(); 900 clearComposingText(); 901 if (text != null && text.length() > 0 && !text.equals(" ")) { 902 RecipientEntry entry = createTokenizedEntry(text); 903 if (entry != null) { 904 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 905 CharSequence chipText = createChip(entry, false); 906 if (chipText != null) { 907 editable.replace(start, end, chipText); 908 } 909 } 910 dismissDropDown(); 911 return true; 912 } 913 } 914 return false; 915 } 916 917 private boolean shouldCreateChip(int start, int end) { 918 return hasFocus() && enoughToFilter() && !alreadyHasChip(start, end); 919 } 920 921 private boolean alreadyHasChip(int start, int end) { 922 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 923 if ((chips == null || chips.length == 0)) { 924 return false; 925 } 926 return true; 927 } 928 929 private void handleEdit(int start, int end) { 930 if (start == -1 || end == -1) { 931 // This chip no longer exists in the field. 932 dismissDropDown(); 933 return; 934 } 935 // This is in the middle of a chip, so select out the whole chip 936 // and commit it. 937 Editable editable = getText(); 938 setSelection(end); 939 String text = getText().toString().substring(start, end); 940 if (!TextUtils.isEmpty(text)) { 941 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 942 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 943 CharSequence chipText = createChip(entry, false); 944 editable.replace(start, getSelectionEnd(), chipText); 945 } 946 dismissDropDown(); 947 } 948 949 /** 950 * If there is a selected chip, delegate the key events 951 * to the selected chip. 952 */ 953 @Override 954 public boolean onKeyDown(int keyCode, KeyEvent event) { 955 if (mSelectedChip != null && keyCode == KeyEvent.KEYCODE_DEL) { 956 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 957 mAlternatesPopup.dismiss(); 958 } 959 removeChip(mSelectedChip); 960 } 961 962 if (keyCode == KeyEvent.KEYCODE_ENTER && event.hasNoModifiers()) { 963 return true; 964 } 965 966 return super.onKeyDown(keyCode, event); 967 } 968 969 private Spannable getSpannable() { 970 return getText(); 971 } 972 973 private int getChipStart(RecipientChip chip) { 974 return getSpannable().getSpanStart(chip); 975 } 976 977 private int getChipEnd(RecipientChip chip) { 978 return getSpannable().getSpanEnd(chip); 979 } 980 981 /** 982 * Instead of filtering on the entire contents of the edit box, 983 * this subclass method filters on the range from 984 * {@link Tokenizer#findTokenStart} to {@link #getSelectionEnd} 985 * if the length of that range meets or exceeds {@link #getThreshold} 986 * and makes sure that the range is not already a Chip. 987 */ 988 @Override 989 protected void performFiltering(CharSequence text, int keyCode) { 990 if (enoughToFilter()) { 991 int end = getSelectionEnd(); 992 int start = mTokenizer.findTokenStart(text, end); 993 // If this is a RecipientChip, don't filter 994 // on its contents. 995 Spannable span = getSpannable(); 996 RecipientChip[] chips = span.getSpans(start, end, RecipientChip.class); 997 if (chips != null && chips.length > 0) { 998 return; 999 } 1000 } 1001 super.performFiltering(text, keyCode); 1002 } 1003 1004 private void clearSelectedChip() { 1005 if (mSelectedChip != null) { 1006 unselectChip(mSelectedChip); 1007 mSelectedChip = null; 1008 } 1009 setCursorVisible(true); 1010 } 1011 1012 /** 1013 * Monitor touch events in the RecipientEditTextView. 1014 * If the view does not have focus, any tap on the view 1015 * will just focus the view. If the view has focus, determine 1016 * if the touch target is a recipient chip. If it is and the chip 1017 * is not selected, select it and clear any other selected chips. 1018 * If it isn't, then select that chip. 1019 */ 1020 @Override 1021 public boolean onTouchEvent(MotionEvent event) { 1022 if (!isFocused()) { 1023 // Ignore any chip taps until this view is focused. 1024 return super.onTouchEvent(event); 1025 } 1026 boolean handled = super.onTouchEvent(event); 1027 int action = event.getAction(); 1028 boolean chipWasSelected = false; 1029 if (mSelectedChip == null) { 1030 mGestureDetector.onTouchEvent(event); 1031 } 1032 if (mCopyAddress == null && action == MotionEvent.ACTION_UP) { 1033 float x = event.getX(); 1034 float y = event.getY(); 1035 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 1036 RecipientChip currentChip = findChip(offset); 1037 if (currentChip != null) { 1038 if (action == MotionEvent.ACTION_UP) { 1039 if (mSelectedChip != null && mSelectedChip != currentChip) { 1040 clearSelectedChip(); 1041 mSelectedChip = selectChip(currentChip); 1042 } else if (mSelectedChip == null) { 1043 setSelection(getText().length()); 1044 commitDefault(); 1045 mSelectedChip = selectChip(currentChip); 1046 } else { 1047 onClick(mSelectedChip, offset, x, y); 1048 } 1049 } 1050 chipWasSelected = true; 1051 handled = true; 1052 } else if (mSelectedChip != null 1053 && mSelectedChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1054 chipWasSelected = true; 1055 } 1056 } 1057 if (action == MotionEvent.ACTION_UP && !chipWasSelected) { 1058 clearSelectedChip(); 1059 } 1060 return handled; 1061 } 1062 1063 private void scrollLineIntoView(int line) { 1064 if (mScrollView != null) { 1065 mScrollView.scrollBy(0, calculateOffsetFromBottom(line)); 1066 } 1067 } 1068 1069 private void showAlternates(RecipientChip currentChip, ListPopupWindow alternatesPopup, 1070 int width, Context context) { 1071 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1072 int bottom = calculateOffsetFromBottom(line); 1073 // Align the alternates popup with the left side of the View, 1074 // regardless of the position of the chip tapped. 1075 alternatesPopup.setWidth(width); 1076 setEnabled(false); 1077 alternatesPopup.setAnchorView(this); 1078 alternatesPopup.setVerticalOffset(bottom); 1079 alternatesPopup.setAdapter(createAlternatesAdapter(currentChip)); 1080 alternatesPopup.setOnItemClickListener(mAlternatesListener); 1081 // Clear the checked item. 1082 mCheckedItem = -1; 1083 alternatesPopup.show(); 1084 ListView listView = alternatesPopup.getListView(); 1085 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1086 // Checked item would be -1 if the adapter has not 1087 // loaded the view that should be checked yet. The 1088 // variable will be set correctly when onCheckedItemChanged 1089 // is called in a separate thread. 1090 if (mCheckedItem != -1) { 1091 listView.setItemChecked(mCheckedItem, true); 1092 mCheckedItem = -1; 1093 } 1094 } 1095 1096 // Dismiss listener for alterns and single address popup. 1097 @Override 1098 public void onDismiss() { 1099 setEnabled(true); 1100 } 1101 1102 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 1103 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 1104 mAlternatesLayout, this); 1105 } 1106 1107 private ListAdapter createSingleAddressAdapter(RecipientChip currentChip) { 1108 return new SingleRecipientArrayAdapter(getContext(), mAlternatesLayout, currentChip 1109 .getEntry()); 1110 } 1111 1112 @Override 1113 public void onCheckedItemChanged(int position) { 1114 ListView listView = mAlternatesPopup.getListView(); 1115 if (listView != null && listView.getCheckedItemCount() == 0) { 1116 listView.setItemChecked(position, true); 1117 } 1118 mCheckedItem = position; 1119 } 1120 1121 // TODO: This algorithm will need a lot of tweaking after more people have used 1122 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 1123 // what comes before the finger. 1124 private int putOffsetInRange(int o) { 1125 int offset = o; 1126 Editable text = getText(); 1127 int length = text.length(); 1128 // Remove whitespace from end to find "real end" 1129 int realLength = length; 1130 for (int i = length - 1; i >= 0; i--) { 1131 if (text.charAt(i) == ' ') { 1132 realLength--; 1133 } else { 1134 break; 1135 } 1136 } 1137 1138 // If the offset is beyond or at the end of the text, 1139 // leave it alone. 1140 if (offset >= realLength) { 1141 return offset; 1142 } 1143 Editable editable = getText(); 1144 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 1145 // Keep walking backward! 1146 offset--; 1147 } 1148 return offset; 1149 } 1150 1151 private int findText(Editable text, int offset) { 1152 if (text.charAt(offset) != ' ') { 1153 return offset; 1154 } 1155 return -1; 1156 } 1157 1158 private RecipientChip findChip(int offset) { 1159 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1160 // Find the chip that contains this offset. 1161 for (int i = 0; i < chips.length; i++) { 1162 RecipientChip chip = chips[i]; 1163 int start = getChipStart(chip); 1164 int end = getChipEnd(chip); 1165 if (offset >= start && offset <= end) { 1166 return chip; 1167 } 1168 } 1169 return null; 1170 } 1171 1172 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 1173 String displayText = entry.getDestination(); 1174 displayText = (String) mTokenizer.terminateToken(displayText); 1175 // Always leave a blank space at the end of a chip. 1176 int textLength = displayText.length()-1; 1177 SpannableString chipText = new SpannableString(displayText); 1178 int end = getSelectionEnd(); 1179 int start = mTokenizer.findTokenStart(getText(), end); 1180 try { 1181 RecipientChip chip = constructChipSpan(entry, start, pressed); 1182 chipText.setSpan(chip, 0, textLength, 1183 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1184 chip.setOriginalText(chipText.toString()); 1185 } catch (NullPointerException e) { 1186 Log.e(TAG, e.getMessage(), e); 1187 return null; 1188 } 1189 1190 return chipText; 1191 } 1192 1193 /** 1194 * When an item in the suggestions list has been clicked, create a chip from the 1195 * contact information of the selected item. 1196 */ 1197 @Override 1198 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1199 submitItemAtPosition(position); 1200 } 1201 1202 private void submitItemAtPosition(int position) { 1203 RecipientEntry entry = createValidatedEntry( 1204 (RecipientEntry)getAdapter().getItem(position)); 1205 if (entry == null) { 1206 return; 1207 } 1208 clearComposingText(); 1209 1210 int end = getSelectionEnd(); 1211 int start = mTokenizer.findTokenStart(getText(), end); 1212 1213 Editable editable = getText(); 1214 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1215 CharSequence chip = createChip(entry, false); 1216 if (chip != null) { 1217 editable.replace(start, end, chip); 1218 } 1219 } 1220 1221 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1222 if (item == null) { 1223 return null; 1224 } 1225 final RecipientEntry entry; 1226 // If the display name and the address are the same, or if this is a 1227 // valid contact, but the destination is invalid, then make this a fake 1228 // recipient that is editable. 1229 String destination = item.getDestination(); 1230 if (TextUtils.isEmpty(item.getDisplayName()) 1231 || TextUtils.equals(item.getDisplayName(), destination) 1232 || (mValidator != null && !mValidator.isValid(destination))) { 1233 entry = RecipientEntry.constructFakeEntry(destination); 1234 } else { 1235 entry = item; 1236 } 1237 return entry; 1238 } 1239 1240 /** Returns a collection of contact Id for each chip inside this View. */ 1241 /* package */ Collection<Long> getContactIds() { 1242 final Set<Long> result = new HashSet<Long>(); 1243 RecipientChip[] chips = getRecipients(); 1244 if (chips != null) { 1245 for (RecipientChip chip : chips) { 1246 result.add(chip.getContactId()); 1247 } 1248 } 1249 return result; 1250 } 1251 1252 private RecipientChip[] getRecipients() { 1253 return getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1254 } 1255 1256 private RecipientChip[] getSortedRecipients() { 1257 ArrayList<RecipientChip> recipientsList = new ArrayList<RecipientChip>(Arrays 1258 .asList(getRecipients())); 1259 final Spannable spannable = getSpannable(); 1260 Collections.sort(recipientsList, new Comparator<RecipientChip>() { 1261 1262 @Override 1263 public int compare(RecipientChip first, RecipientChip second) { 1264 int firstStart = spannable.getSpanStart(first); 1265 int secondStart = spannable.getSpanStart(second); 1266 if (firstStart < secondStart) { 1267 return -1; 1268 } else if (firstStart > secondStart) { 1269 return 1; 1270 } else { 1271 return 0; 1272 } 1273 } 1274 }); 1275 return recipientsList.toArray(new RecipientChip[recipientsList.size()]); 1276 } 1277 1278 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1279 /* package */ Collection<Long> getDataIds() { 1280 final Set<Long> result = new HashSet<Long>(); 1281 RecipientChip [] chips = getRecipients(); 1282 if (chips != null) { 1283 for (RecipientChip chip : chips) { 1284 result.add(chip.getDataId()); 1285 } 1286 } 1287 return result; 1288 } 1289 1290 1291 @Override 1292 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1293 return false; 1294 } 1295 1296 @Override 1297 public void onDestroyActionMode(ActionMode mode) { 1298 } 1299 1300 @Override 1301 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1302 return false; 1303 } 1304 1305 /** 1306 * No chips are selectable. 1307 */ 1308 @Override 1309 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1310 return false; 1311 } 1312 1313 /** 1314 * Create the more chip. The more chip is text that replaces any chips that 1315 * do not fit in the pre-defined available space when the 1316 * RecipientEditTextView loses focus. 1317 */ 1318 private void createMoreChip() { 1319 if (!mShouldShrink) { 1320 return; 1321 } 1322 1323 ImageSpan[] tempMore = getSpannable().getSpans(0, getText().length(), MoreImageSpan.class); 1324 if (tempMore.length > 0) { 1325 getSpannable().removeSpan(tempMore[0]); 1326 } 1327 RecipientChip[] recipients = getSortedRecipients(); 1328 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1329 mMoreChip = null; 1330 return; 1331 } 1332 Spannable spannable = getSpannable(); 1333 int numRecipients = recipients.length; 1334 int overage = numRecipients - CHIP_LIMIT; 1335 String moreText = String.format(mMoreItem.getText().toString(), overage); 1336 TextPaint morePaint = new TextPaint(getPaint()); 1337 morePaint.setTextSize(mMoreItem.getTextSize()); 1338 morePaint.setColor(mMoreItem.getCurrentTextColor()); 1339 int width = (int)morePaint.measureText(moreText) + mMoreItem.getPaddingLeft() 1340 + mMoreItem.getPaddingRight(); 1341 int height = getLineHeight(); 1342 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1343 Canvas canvas = new Canvas(drawable); 1344 canvas.drawText(moreText, 0, moreText.length(), 0, height - getLayout().getLineDescent(0), 1345 morePaint); 1346 1347 Drawable result = new BitmapDrawable(getResources(), drawable); 1348 result.setBounds(0, 0, width, height); 1349 MoreImageSpan moreSpan = new MoreImageSpan(result); 1350 // Remove the overage chips. 1351 if (recipients == null || recipients.length == 0) { 1352 Log.w(TAG, 1353 "We have recipients. Tt should not be possible to have zero RecipientChips."); 1354 mMoreChip = null; 1355 return; 1356 } 1357 mRemovedSpans = new ArrayList<RecipientChip>(); 1358 int totalReplaceStart = 0; 1359 int totalReplaceEnd = 0; 1360 Editable text = getText(); 1361 for (int i = numRecipients - overage; i < recipients.length; i++) { 1362 mRemovedSpans.add(recipients[i]); 1363 if (i == numRecipients - overage) { 1364 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1365 } 1366 if (i == recipients.length - 1) { 1367 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1368 } 1369 if (mTemporaryRecipients == null || !mTemporaryRecipients.contains(recipients[i])) { 1370 int spanStart = spannable.getSpanStart(recipients[i]); 1371 int spanEnd = spannable.getSpanEnd(recipients[i]); 1372 recipients[i].setOriginalText(text.toString().substring(spanStart, spanEnd)); 1373 } 1374 spannable.removeSpan(recipients[i]); 1375 } 1376 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1377 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1378 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1379 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1380 text.replace(start, end, chipText); 1381 mMoreChip = moreSpan; 1382 } 1383 1384 /** 1385 * Replace the more chip, if it exists, with all of the recipient chips it had 1386 * replaced when the RecipientEditTextView gains focus. 1387 */ 1388 private void removeMoreChip() { 1389 if (mMoreChip != null) { 1390 Spannable span = getSpannable(); 1391 span.removeSpan(mMoreChip); 1392 mMoreChip = null; 1393 // Re-add the spans that were removed. 1394 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1395 // Recreate each removed span. 1396 RecipientChip[] recipients = getRecipients(); 1397 // Start the search for tokens after the last currently visible 1398 // chip. 1399 int end = span.getSpanEnd(recipients[recipients.length - 1]); 1400 Editable editable = getText(); 1401 for (RecipientChip chip : mRemovedSpans) { 1402 int chipStart; 1403 int chipEnd; 1404 String token; 1405 // Need to find the location of the chip, again. 1406 token = (String) chip.getOriginalText(); 1407 // As we find the matching recipient for the remove spans, 1408 // reduce the size of the string we need to search. 1409 // That way, if there are duplicates, we always find the correct 1410 // recipient. 1411 chipStart = editable.toString().indexOf(token, end); 1412 // -1 for the space! 1413 end = chipEnd = Math.min(editable.length(), chipStart + token.length()); 1414 // Only set the span if we found a matching token. 1415 if (chipStart != -1) { 1416 editable.setSpan(chip, chipStart, chipEnd, 1417 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1418 } 1419 } 1420 mRemovedSpans.clear(); 1421 } 1422 } 1423 } 1424 1425 /** 1426 * Show specified chip as selected. If the RecipientChip is just an email address, 1427 * selecting the chip will take the contents of the chip and place it at 1428 * the end of the RecipientEditTextView for inline editing. If the 1429 * RecipientChip is a complete contact, then selecting the chip 1430 * will change the background color of the chip, show the delete icon, 1431 * and a popup window with the address in use highlighted and any other 1432 * alternate addresses for the contact. 1433 * @param currentChip Chip to select. 1434 * @return A RecipientChip in the selected state or null if the chip 1435 * just contained an email address. 1436 */ 1437 public RecipientChip selectChip(RecipientChip currentChip) { 1438 if (currentChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1439 CharSequence text = currentChip.getValue(); 1440 Editable editable = getText(); 1441 removeChip(currentChip); 1442 editable.append(text); 1443 setCursorVisible(true); 1444 setSelection(editable.length()); 1445 return new RecipientChip(null, RecipientEntry.constructFakeEntry((String) text), -1); 1446 } else if (currentChip.getContactId() == RecipientEntry.GENERATED_CONTACT) { 1447 int start = getChipStart(currentChip); 1448 int end = getChipEnd(currentChip); 1449 getSpannable().removeSpan(currentChip); 1450 RecipientChip newChip; 1451 try { 1452 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1453 } catch (NullPointerException e) { 1454 Log.e(TAG, e.getMessage(), e); 1455 return null; 1456 } 1457 Editable editable = getText(); 1458 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1459 if (start == -1 || end == -1) { 1460 Log.d(TAG, "The chip being selected no longer exists but should."); 1461 } else { 1462 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1463 } 1464 newChip.setSelected(true); 1465 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1466 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1467 } 1468 showAddress(newChip, mAddressPopup, getWidth(), getContext()); 1469 setCursorVisible(false); 1470 return newChip; 1471 } else { 1472 int start = getChipStart(currentChip); 1473 int end = getChipEnd(currentChip); 1474 getSpannable().removeSpan(currentChip); 1475 RecipientChip newChip; 1476 try { 1477 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1478 } catch (NullPointerException e) { 1479 Log.e(TAG, e.getMessage(), e); 1480 return null; 1481 } 1482 Editable editable = getText(); 1483 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1484 if (start == -1 || end == -1) { 1485 Log.d(TAG, "The chip being selected no longer exists but should."); 1486 } else { 1487 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1488 } 1489 newChip.setSelected(true); 1490 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1491 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1492 } 1493 showAlternates(newChip, mAlternatesPopup, getWidth(), getContext()); 1494 setCursorVisible(false); 1495 return newChip; 1496 } 1497 } 1498 1499 1500 private void showAddress(final RecipientChip currentChip, final ListPopupWindow popup, 1501 int width, Context context) { 1502 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1503 int bottom = calculateOffsetFromBottom(line); 1504 // Align the alternates popup with the left side of the View, 1505 // regardless of the position of the chip tapped. 1506 setEnabled(false); 1507 popup.setWidth(width); 1508 popup.setAnchorView(this); 1509 popup.setVerticalOffset(bottom); 1510 popup.setAdapter(createSingleAddressAdapter(currentChip)); 1511 popup.setOnItemClickListener(new OnItemClickListener() { 1512 @Override 1513 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1514 unselectChip(currentChip); 1515 popup.dismiss(); 1516 } 1517 }); 1518 popup.show(); 1519 ListView listView = popup.getListView(); 1520 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1521 listView.setItemChecked(0, true); 1522 } 1523 1524 /** 1525 * Remove selection from this chip. Unselecting a RecipientChip will render 1526 * the chip without a delete icon and with an unfocused background. This 1527 * is called when the RecipientChip no longer has focus. 1528 */ 1529 public void unselectChip(RecipientChip chip) { 1530 int start = getChipStart(chip); 1531 int end = getChipEnd(chip); 1532 Editable editable = getText(); 1533 mSelectedChip = null; 1534 if (start == -1 || end == -1) { 1535 Log.w(TAG, 1536 "The chip doesn't exist or may be a chip a user was editing"); 1537 setSelection(editable.length()); 1538 commitDefault(); 1539 } else { 1540 getSpannable().removeSpan(chip); 1541 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1542 editable.removeSpan(chip); 1543 try { 1544 editable.setSpan(constructChipSpan(chip.getEntry(), start, false), start, end, 1545 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1546 } catch (NullPointerException e) { 1547 Log.e(TAG, e.getMessage(), e); 1548 } 1549 } 1550 setCursorVisible(true); 1551 setSelection(editable.length()); 1552 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1553 mAlternatesPopup.dismiss(); 1554 } 1555 } 1556 1557 /** 1558 * Return whether this chip contains the position passed in. 1559 */ 1560 public boolean matchesChip(RecipientChip chip, int offset) { 1561 int start = getChipStart(chip); 1562 int end = getChipEnd(chip); 1563 if (start == -1 || end == -1) { 1564 return false; 1565 } 1566 return (offset >= start && offset <= end); 1567 } 1568 1569 1570 /** 1571 * Return whether a touch event was inside the delete target of 1572 * a selected chip. It is in the delete target if: 1573 * 1) the x and y points of the event are within the 1574 * delete assset. 1575 * 2) the point tapped would have caused a cursor to appear 1576 * right after the selected chip. 1577 * @return boolean 1578 */ 1579 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1580 // Figure out the bounds of this chip and whether or not 1581 // the user clicked in the X portion. 1582 return chip.isSelected() && offset == getChipEnd(chip); 1583 } 1584 1585 /** 1586 * Remove the chip and any text associated with it from the RecipientEditTextView. 1587 */ 1588 private void removeChip(RecipientChip chip) { 1589 Spannable spannable = getSpannable(); 1590 int spanStart = spannable.getSpanStart(chip); 1591 int spanEnd = spannable.getSpanEnd(chip); 1592 Editable text = getText(); 1593 int toDelete = spanEnd; 1594 boolean wasSelected = chip == mSelectedChip; 1595 // Clear that there is a selected chip before updating any text. 1596 if (wasSelected) { 1597 mSelectedChip = null; 1598 } 1599 // Always remove trailing spaces when removing a chip. 1600 while (toDelete >= 0 && toDelete < text.length() && text.charAt(toDelete) == ' ') { 1601 toDelete++; 1602 } 1603 spannable.removeSpan(chip); 1604 text.delete(spanStart, toDelete); 1605 if (wasSelected) { 1606 clearSelectedChip(); 1607 } 1608 } 1609 1610 /** 1611 * Replace this currently selected chip with a new chip 1612 * that uses the contact data provided. 1613 */ 1614 public void replaceChip(RecipientChip chip, RecipientEntry entry) { 1615 boolean wasSelected = chip == mSelectedChip; 1616 if (wasSelected) { 1617 mSelectedChip = null; 1618 } 1619 int start = getChipStart(chip); 1620 int end = getChipEnd(chip); 1621 getSpannable().removeSpan(chip); 1622 Editable editable = getText(); 1623 CharSequence chipText = createChip(entry, false); 1624 if (start == -1 || end == -1) { 1625 Log.e(TAG, "The chip to replace does not exist but should."); 1626 editable.insert(0, chipText); 1627 } else { 1628 // There may be a space to replace with this chip's new associated 1629 // space. Check for it. 1630 int toReplace = end; 1631 while (toReplace >= 0 && toReplace < editable.length() 1632 && editable.charAt(toReplace) == ' ') { 1633 toReplace++; 1634 } 1635 editable.replace(start, toReplace, chipText); 1636 } 1637 setCursorVisible(true); 1638 if (wasSelected) { 1639 clearSelectedChip(); 1640 } 1641 } 1642 1643 /** 1644 * Handle click events for a chip. When a selected chip receives a click 1645 * event, see if that event was in the delete icon. If so, delete it. 1646 * Otherwise, unselect the chip. 1647 */ 1648 public void onClick(RecipientChip chip, int offset, float x, float y) { 1649 if (chip.isSelected()) { 1650 if (isInDelete(chip, offset, x, y)) { 1651 removeChip(chip); 1652 } else { 1653 clearSelectedChip(); 1654 } 1655 } 1656 } 1657 1658 private boolean chipsPending() { 1659 return mPendingChipsCount > 0 || (mRemovedSpans != null && mRemovedSpans.size() > 0); 1660 } 1661 1662 @Override 1663 public void removeTextChangedListener(TextWatcher watcher) { 1664 mTextWatcher = null; 1665 super.removeTextChangedListener(watcher); 1666 } 1667 1668 private class RecipientTextWatcher implements TextWatcher { 1669 @Override 1670 public void afterTextChanged(Editable s) { 1671 // If the text has been set to null or empty, make sure we remove 1672 // all the spans we applied. 1673 if (TextUtils.isEmpty(s)) { 1674 // Remove all the chips spans. 1675 Spannable spannable = getSpannable(); 1676 RecipientChip[] chips = spannable.getSpans(0, getText().length(), 1677 RecipientChip.class); 1678 for (RecipientChip chip : chips) { 1679 spannable.removeSpan(chip); 1680 } 1681 if (mMoreChip != null) { 1682 spannable.removeSpan(mMoreChip); 1683 } 1684 return; 1685 } 1686 // Get whether there are any recipients pending addition to the 1687 // view. If there are, don't do anything in the text watcher. 1688 if (chipsPending()) { 1689 return; 1690 } 1691 // If the user is editing a chip, don't clear it. 1692 if (mSelectedChip != null 1693 && mSelectedChip.getContactId() != RecipientEntry.INVALID_CONTACT) { 1694 setCursorVisible(true); 1695 setSelection(getText().length()); 1696 clearSelectedChip(); 1697 } 1698 int length = s.length(); 1699 // Make sure there is content there to parse and that it is 1700 // not just the commit character. 1701 if (length > 1) { 1702 char last; 1703 int end = getSelectionEnd() == 0 ? 0 : getSelectionEnd() - 1; 1704 int len = length() - 1; 1705 if (end != len) { 1706 last = s.charAt(end); 1707 } else { 1708 last = s.charAt(len); 1709 } 1710 if (last == COMMIT_CHAR_SEMICOLON || last == COMMIT_CHAR_COMMA) { 1711 commitByCharacter(); 1712 } else if (last == COMMIT_CHAR_SPACE) { 1713 // Check if this is a valid email address. If it is, 1714 // commit it. 1715 String text = getText().toString(); 1716 int tokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 1717 String sub = text.substring(tokenStart, mTokenizer.findTokenEnd(text, 1718 tokenStart)); 1719 if (!TextUtils.isEmpty(sub) && mValidator != null && mValidator.isValid(sub)) { 1720 commitByCharacter(); 1721 } 1722 } 1723 } 1724 } 1725 1726 @Override 1727 public void onTextChanged(CharSequence s, int start, int before, int count) { 1728 // Do nothing. 1729 } 1730 1731 @Override 1732 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 1733 } 1734 } 1735 1736 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 1737 private RecipientChip createFreeChip(RecipientEntry entry) { 1738 String displayText = entry.getDestination(); 1739 if (displayText.indexOf(",") == -1) { 1740 displayText = (String) mTokenizer.terminateToken(displayText); 1741 } 1742 try { 1743 return constructChipSpan(entry, -1, false); 1744 } catch (NullPointerException e) { 1745 Log.e(TAG, e.getMessage(), e); 1746 return null; 1747 } 1748 } 1749 1750 @Override 1751 protected Void doInBackground(Void... params) { 1752 if (mIndividualReplacements != null) { 1753 mIndividualReplacements.cancel(true); 1754 } 1755 // For each chip in the list, look up the matching contact. 1756 // If there is a match, replace that chip with the matching 1757 // chip. 1758 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 1759 RecipientChip[] existingChips = getSortedRecipients(); 1760 for (int i = 0; i < existingChips.length; i++) { 1761 originalRecipients.add(existingChips[i]); 1762 } 1763 if (mRemovedSpans != null) { 1764 originalRecipients.addAll(mRemovedSpans); 1765 } 1766 String[] addresses = new String[originalRecipients.size()]; 1767 for (int i = 0; i < originalRecipients.size(); i++) { 1768 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1769 } 1770 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1771 .getMatchingRecipients(getContext(), addresses); 1772 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 1773 for (final RecipientChip temp : originalRecipients) { 1774 RecipientEntry entry = null; 1775 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1776 && getSpannable().getSpanStart(temp) != -1) { 1777 // Replace this. 1778 entry = createValidatedEntry(entries.get(tokenizeAddress(temp.getEntry() 1779 .getDestination()))); 1780 } 1781 if (entry != null) { 1782 replacements.add(createFreeChip(entry)); 1783 } else { 1784 replacements.add(temp); 1785 } 1786 } 1787 if (replacements != null && replacements.size() > 0) { 1788 mHandler.post(new Runnable() { 1789 @Override 1790 public void run() { 1791 SpannableStringBuilder text = new SpannableStringBuilder(getText() 1792 .toString()); 1793 Editable oldText = getText(); 1794 int start, end; 1795 int i = 0; 1796 for (RecipientChip chip : originalRecipients) { 1797 start = oldText.getSpanStart(chip); 1798 if (start != -1) { 1799 end = oldText.getSpanEnd(chip); 1800 text.removeSpan(chip); 1801 // Leave a spot for the space! 1802 RecipientChip replacement = replacements.get(i); 1803 text.setSpan(replacement, start, end, 1804 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1805 replacement.setOriginalText(text.toString().substring(start, end)); 1806 } 1807 i++; 1808 } 1809 Editable editable = getText(); 1810 editable.clear(); 1811 editable.insert(0, text); 1812 originalRecipients.clear(); 1813 } 1814 }); 1815 } 1816 return null; 1817 } 1818 } 1819 1820 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 1821 @SuppressWarnings("unchecked") 1822 @Override 1823 protected Void doInBackground(Object... params) { 1824 // For each chip in the list, look up the matching contact. 1825 // If there is a match, replace that chip with the matching 1826 // chip. 1827 final ArrayList<RecipientChip> originalRecipients = 1828 (ArrayList<RecipientChip>) params[0]; 1829 String[] addresses = new String[originalRecipients.size()]; 1830 for (int i = 0; i < originalRecipients.size(); i++) { 1831 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1832 } 1833 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1834 .getMatchingRecipients(getContext(), addresses); 1835 for (final RecipientChip temp : originalRecipients) { 1836 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1837 && getSpannable().getSpanStart(temp) != -1) { 1838 // Replace this. 1839 final RecipientEntry entry = createValidatedEntry(entries 1840 .get(tokenizeAddress(temp.getEntry().getDestination()))); 1841 if (entry != null) { 1842 mHandler.post(new Runnable() { 1843 @Override 1844 public void run() { 1845 replaceChip(temp, entry); 1846 } 1847 }); 1848 } 1849 } 1850 } 1851 return null; 1852 } 1853 } 1854 1855 1856 /** 1857 * MoreImageSpan is a simple class created for tracking the existence of a 1858 * more chip across activity restarts/ 1859 */ 1860 private class MoreImageSpan extends ImageSpan { 1861 public MoreImageSpan(Drawable b) { 1862 super(b); 1863 } 1864 } 1865 1866 @Override 1867 public boolean onDown(MotionEvent e) { 1868 return false; 1869 } 1870 1871 @Override 1872 public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { 1873 // Do nothing. 1874 return false; 1875 } 1876 1877 @Override 1878 public void onLongPress(MotionEvent event) { 1879 if (mSelectedChip != null) { 1880 return; 1881 } 1882 float x = event.getX(); 1883 float y = event.getY(); 1884 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 1885 RecipientChip currentChip = findChip(offset); 1886 if (currentChip != null) { 1887 // Copy the selected chip email address. 1888 showCopyDialog(currentChip.getEntry().getDestination()); 1889 } 1890 } 1891 1892 private void showCopyDialog(final String address) { 1893 mCopyAddress = address; 1894 mCopyDialog.setTitle(address); 1895 mCopyDialog.setContentView(mCopyViewRes); 1896 mCopyDialog.setCancelable(true); 1897 mCopyDialog.setCanceledOnTouchOutside(true); 1898 mCopyDialog.findViewById(android.R.id.button1).setOnClickListener(this); 1899 mCopyDialog.setOnDismissListener(this); 1900 mCopyDialog.show(); 1901 } 1902 1903 @Override 1904 public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) { 1905 // Do nothing. 1906 return false; 1907 } 1908 1909 @Override 1910 public void onShowPress(MotionEvent e) { 1911 // Do nothing. 1912 } 1913 1914 @Override 1915 public boolean onSingleTapUp(MotionEvent e) { 1916 // Do nothing. 1917 return false; 1918 } 1919 1920 @Override 1921 public void onDismiss(DialogInterface dialog) { 1922 mCopyAddress = null; 1923 } 1924 1925 @Override 1926 public void onClick(View v) { 1927 // Copy this to the clipboard. 1928 ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService( 1929 Context.CLIPBOARD_SERVICE); 1930 clipboard.setPrimaryClip(ClipData.newPlainText("", mCopyAddress)); 1931 mCopyDialog.dismiss(); 1932 } 1933} 1934