RecipientEditTextView.java revision d9ae83e0bb529af5c97f9aba73df3e02d1484218
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 // Clear the checked item. 1059 mCheckedItem = -1; 1060 alternatesPopup.show(); 1061 ListView listView = alternatesPopup.getListView(); 1062 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1063 // Checked item would be -1 if the adapter has not 1064 // loaded the view that should be checked yet. The 1065 // variable will be set correctly when onCheckedItemChanged 1066 // is called in a separate thread. 1067 if (mCheckedItem != -1) { 1068 listView.setItemChecked(mCheckedItem, true); 1069 mCheckedItem = -1; 1070 } 1071 } 1072 1073 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 1074 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 1075 mAlternatesLayout, this); 1076 } 1077 1078 private ListAdapter createSingleAddressAdapter(RecipientChip currentChip) { 1079 return new SingleRecipientArrayAdapter(getContext(), mAlternatesLayout, currentChip 1080 .getEntry()); 1081 } 1082 1083 @Override 1084 public void onCheckedItemChanged(int position) { 1085 ListView listView = mAlternatesPopup.getListView(); 1086 if (listView != null && listView.getCheckedItemCount() == 0) { 1087 listView.setItemChecked(position, true); 1088 } 1089 mCheckedItem = position; 1090 } 1091 1092 // TODO: This algorithm will need a lot of tweaking after more people have used 1093 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 1094 // what comes before the finger. 1095 private int putOffsetInRange(int o) { 1096 int offset = o; 1097 Editable text = getText(); 1098 int length = text.length(); 1099 // Remove whitespace from end to find "real end" 1100 int realLength = length; 1101 for (int i = length - 1; i >= 0; i--) { 1102 if (text.charAt(i) == ' ') { 1103 realLength--; 1104 } else { 1105 break; 1106 } 1107 } 1108 1109 // If the offset is beyond or at the end of the text, 1110 // leave it alone. 1111 if (offset >= realLength) { 1112 return offset; 1113 } 1114 Editable editable = getText(); 1115 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 1116 // Keep walking backward! 1117 offset--; 1118 } 1119 return offset; 1120 } 1121 1122 private int findText(Editable text, int offset) { 1123 if (text.charAt(offset) != ' ') { 1124 return offset; 1125 } 1126 return -1; 1127 } 1128 1129 private RecipientChip findChip(int offset) { 1130 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1131 // Find the chip that contains this offset. 1132 for (int i = 0; i < chips.length; i++) { 1133 RecipientChip chip = chips[i]; 1134 int start = getChipStart(chip); 1135 int end = getChipEnd(chip); 1136 if (offset >= start && offset <= end) { 1137 return chip; 1138 } 1139 } 1140 return null; 1141 } 1142 1143 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 1144 String displayText = entry.getDestination(); 1145 displayText = (String) mTokenizer.terminateToken(displayText); 1146 // Always leave a blank space at the end of a chip. 1147 int textLength = displayText.length()-1; 1148 SpannableString chipText = new SpannableString(displayText); 1149 int end = getSelectionEnd(); 1150 int start = mTokenizer.findTokenStart(getText(), end); 1151 try { 1152 RecipientChip chip = constructChipSpan(entry, start, pressed); 1153 chipText.setSpan(chip, 0, textLength, 1154 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1155 chip.setOriginalText(chipText.toString()); 1156 } catch (NullPointerException e) { 1157 Log.e(TAG, e.getMessage(), e); 1158 return null; 1159 } 1160 1161 return chipText; 1162 } 1163 1164 /** 1165 * When an item in the suggestions list has been clicked, create a chip from the 1166 * contact information of the selected item. 1167 */ 1168 @Override 1169 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1170 submitItemAtPosition(position); 1171 } 1172 1173 private void submitItemAtPosition(int position) { 1174 RecipientEntry entry = createValidatedEntry( 1175 (RecipientEntry)getAdapter().getItem(position)); 1176 if (entry == null) { 1177 return; 1178 } 1179 clearComposingText(); 1180 1181 int end = getSelectionEnd(); 1182 int start = mTokenizer.findTokenStart(getText(), end); 1183 1184 Editable editable = getText(); 1185 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1186 CharSequence chip = createChip(entry, false); 1187 if (chip != null) { 1188 editable.replace(start, end, chip); 1189 } 1190 } 1191 1192 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1193 if (item == null) { 1194 return null; 1195 } 1196 final RecipientEntry entry; 1197 // If the display name and the address are the same, or if this is a 1198 // valid contact, but the destination is invalid, then make this a fake 1199 // recipient that is editable. 1200 String destination = item.getDestination(); 1201 if (TextUtils.isEmpty(item.getDisplayName()) 1202 || TextUtils.equals(item.getDisplayName(), destination) 1203 || (mValidator != null && !mValidator.isValid(destination))) { 1204 entry = RecipientEntry.constructFakeEntry(destination); 1205 } else { 1206 entry = item; 1207 } 1208 return entry; 1209 } 1210 1211 /** Returns a collection of contact Id for each chip inside this View. */ 1212 /* package */ Collection<Long> getContactIds() { 1213 final Set<Long> result = new HashSet<Long>(); 1214 RecipientChip[] chips = getRecipients(); 1215 if (chips != null) { 1216 for (RecipientChip chip : chips) { 1217 result.add(chip.getContactId()); 1218 } 1219 } 1220 return result; 1221 } 1222 1223 private RecipientChip[] getRecipients() { 1224 return getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1225 } 1226 1227 private RecipientChip[] getSortedRecipients() { 1228 ArrayList<RecipientChip> recipientsList = new ArrayList<RecipientChip>(Arrays 1229 .asList(getRecipients())); 1230 final Spannable spannable = getSpannable(); 1231 Collections.sort(recipientsList, new Comparator<RecipientChip>() { 1232 1233 @Override 1234 public int compare(RecipientChip first, RecipientChip second) { 1235 int firstStart = spannable.getSpanStart(first); 1236 int secondStart = spannable.getSpanStart(second); 1237 if (firstStart < secondStart) { 1238 return -1; 1239 } else if (firstStart > secondStart) { 1240 return 1; 1241 } else { 1242 return 0; 1243 } 1244 } 1245 }); 1246 return recipientsList.toArray(new RecipientChip[recipientsList.size()]); 1247 } 1248 1249 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1250 /* package */ Collection<Long> getDataIds() { 1251 final Set<Long> result = new HashSet<Long>(); 1252 RecipientChip [] chips = getRecipients(); 1253 if (chips != null) { 1254 for (RecipientChip chip : chips) { 1255 result.add(chip.getDataId()); 1256 } 1257 } 1258 return result; 1259 } 1260 1261 1262 @Override 1263 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1264 return false; 1265 } 1266 1267 @Override 1268 public void onDestroyActionMode(ActionMode mode) { 1269 } 1270 1271 @Override 1272 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1273 return false; 1274 } 1275 1276 /** 1277 * No chips are selectable. 1278 */ 1279 @Override 1280 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1281 return false; 1282 } 1283 1284 /** 1285 * Create the more chip. The more chip is text that replaces any chips that 1286 * do not fit in the pre-defined available space when the 1287 * RecipientEditTextView loses focus. 1288 */ 1289 private void createMoreChip() { 1290 if (!mShouldShrink) { 1291 return; 1292 } 1293 1294 ImageSpan[] tempMore = getSpannable().getSpans(0, getText().length(), MoreImageSpan.class); 1295 if (tempMore.length > 0) { 1296 getSpannable().removeSpan(tempMore[0]); 1297 } 1298 RecipientChip[] recipients = getSortedRecipients(); 1299 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1300 mMoreChip = null; 1301 return; 1302 } 1303 Spannable spannable = getSpannable(); 1304 int numRecipients = recipients.length; 1305 int overage = numRecipients - CHIP_LIMIT; 1306 String moreText = String.format(mMoreItem.getText().toString(), overage); 1307 TextPaint morePaint = new TextPaint(getPaint()); 1308 morePaint.setTextSize(mMoreItem.getTextSize()); 1309 morePaint.setColor(mMoreItem.getCurrentTextColor()); 1310 int width = (int)morePaint.measureText(moreText) + mMoreItem.getPaddingLeft() 1311 + mMoreItem.getPaddingRight(); 1312 int height = getLineHeight(); 1313 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1314 Canvas canvas = new Canvas(drawable); 1315 canvas.drawText(moreText, 0, moreText.length(), 0, height - getLayout().getLineDescent(0), 1316 morePaint); 1317 1318 Drawable result = new BitmapDrawable(getResources(), drawable); 1319 result.setBounds(0, 0, width, height); 1320 MoreImageSpan moreSpan = new MoreImageSpan(result); 1321 // Remove the overage chips. 1322 if (recipients == null || recipients.length == 0) { 1323 Log.w(TAG, 1324 "We have recipients. Tt should not be possible to have zero RecipientChips."); 1325 mMoreChip = null; 1326 return; 1327 } 1328 mRemovedSpans = new ArrayList<RecipientChip>(); 1329 int totalReplaceStart = 0; 1330 int totalReplaceEnd = 0; 1331 Editable text = getText(); 1332 for (int i = numRecipients - overage; i < recipients.length; i++) { 1333 mRemovedSpans.add(recipients[i]); 1334 if (i == numRecipients - overage) { 1335 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1336 } 1337 if (i == recipients.length - 1) { 1338 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1339 } 1340 if (mTemporaryRecipients == null || !mTemporaryRecipients.contains(recipients[i])) { 1341 int spanStart = spannable.getSpanStart(recipients[i]); 1342 int spanEnd = spannable.getSpanEnd(recipients[i]); 1343 recipients[i].setOriginalText(text.toString().substring(spanStart, spanEnd)); 1344 } 1345 spannable.removeSpan(recipients[i]); 1346 } 1347 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1348 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1349 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1350 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1351 text.replace(start, end, chipText); 1352 mMoreChip = moreSpan; 1353 } 1354 1355 /** 1356 * Replace the more chip, if it exists, with all of the recipient chips it had 1357 * replaced when the RecipientEditTextView gains focus. 1358 */ 1359 private void removeMoreChip() { 1360 if (mMoreChip != null) { 1361 Spannable span = getSpannable(); 1362 span.removeSpan(mMoreChip); 1363 mMoreChip = null; 1364 // Re-add the spans that were removed. 1365 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1366 // Recreate each removed span. 1367 Editable editable = getText(); 1368 for (RecipientChip chip : mRemovedSpans) { 1369 int chipStart; 1370 int chipEnd; 1371 String token; 1372 // Need to find the location of the chip, again. 1373 token = (String) chip.getOriginalText(); 1374 chipStart = editable.toString().indexOf(token); 1375 // -1 for the space! 1376 chipEnd = Math.min(editable.length(), chipStart + token.length()); 1377 // Only set the span if we found a matching token. 1378 if (chipStart != -1) { 1379 editable.setSpan(chip, chipStart, chipEnd, 1380 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1381 } 1382 } 1383 mRemovedSpans.clear(); 1384 } 1385 } 1386 } 1387 1388 /** 1389 * Show specified chip as selected. If the RecipientChip is just an email address, 1390 * selecting the chip will take the contents of the chip and place it at 1391 * the end of the RecipientEditTextView for inline editing. If the 1392 * RecipientChip is a complete contact, then selecting the chip 1393 * will change the background color of the chip, show the delete icon, 1394 * and a popup window with the address in use highlighted and any other 1395 * alternate addresses for the contact. 1396 * @param currentChip Chip to select. 1397 * @return A RecipientChip in the selected state or null if the chip 1398 * just contained an email address. 1399 */ 1400 public RecipientChip selectChip(RecipientChip currentChip) { 1401 if (currentChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1402 CharSequence text = currentChip.getValue(); 1403 Editable editable = getText(); 1404 removeChip(currentChip); 1405 editable.append(text); 1406 setCursorVisible(true); 1407 setSelection(editable.length()); 1408 return new RecipientChip(null, RecipientEntry.constructFakeEntry((String) text), -1); 1409 } else if (currentChip.getContactId() == RecipientEntry.GENERATED_CONTACT) { 1410 int start = getChipStart(currentChip); 1411 int end = getChipEnd(currentChip); 1412 getSpannable().removeSpan(currentChip); 1413 RecipientChip newChip; 1414 try { 1415 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1416 } catch (NullPointerException e) { 1417 Log.e(TAG, e.getMessage(), e); 1418 return null; 1419 } 1420 Editable editable = getText(); 1421 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1422 if (start == -1 || end == -1) { 1423 Log.d(TAG, "The chip being selected no longer exists but should."); 1424 } else { 1425 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1426 } 1427 newChip.setSelected(true); 1428 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1429 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1430 } 1431 showAddress(newChip, mAddressPopup, getWidth(), getContext()); 1432 setCursorVisible(false); 1433 return newChip; 1434 } else { 1435 int start = getChipStart(currentChip); 1436 int end = getChipEnd(currentChip); 1437 getSpannable().removeSpan(currentChip); 1438 RecipientChip newChip; 1439 try { 1440 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1441 } catch (NullPointerException e) { 1442 Log.e(TAG, e.getMessage(), e); 1443 return null; 1444 } 1445 Editable editable = getText(); 1446 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1447 if (start == -1 || end == -1) { 1448 Log.d(TAG, "The chip being selected no longer exists but should."); 1449 } else { 1450 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1451 } 1452 newChip.setSelected(true); 1453 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1454 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1455 } 1456 showAlternates(newChip, mAlternatesPopup, getWidth(), getContext()); 1457 setCursorVisible(false); 1458 return newChip; 1459 } 1460 } 1461 1462 1463 private void showAddress(final RecipientChip currentChip, final ListPopupWindow popup, 1464 int width, Context context) { 1465 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1466 int bottom = calculateOffsetFromBottom(line); 1467 // Align the alternates popup with the left side of the View, 1468 // regardless of the position of the chip tapped. 1469 popup.setWidth(width); 1470 popup.setAnchorView(this); 1471 popup.setVerticalOffset(bottom); 1472 popup.setAdapter(createSingleAddressAdapter(currentChip)); 1473 popup.setOnItemClickListener(new OnItemClickListener() { 1474 @Override 1475 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1476 unselectChip(currentChip); 1477 popup.dismiss(); 1478 } 1479 }); 1480 popup.show(); 1481 ListView listView = popup.getListView(); 1482 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1483 listView.setItemChecked(0, true); 1484 } 1485 1486 /** 1487 * Remove selection from this chip. Unselecting a RecipientChip will render 1488 * the chip without a delete icon and with an unfocused background. This 1489 * is called when the RecipientChip no longer has focus. 1490 */ 1491 public void unselectChip(RecipientChip chip) { 1492 int start = getChipStart(chip); 1493 int end = getChipEnd(chip); 1494 Editable editable = getText(); 1495 mSelectedChip = null; 1496 if (start == -1 || end == -1) { 1497 Log.e(TAG, "The chip being unselected no longer exists."); 1498 } else { 1499 getSpannable().removeSpan(chip); 1500 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1501 editable.removeSpan(chip); 1502 try { 1503 editable.setSpan(constructChipSpan(chip.getEntry(), start, false), start, end, 1504 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1505 } catch (NullPointerException e) { 1506 Log.e(TAG, e.getMessage(), e); 1507 } 1508 } 1509 setCursorVisible(true); 1510 setSelection(editable.length()); 1511 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1512 mAlternatesPopup.dismiss(); 1513 } 1514 } 1515 1516 1517 /** 1518 * Return whether this chip contains the position passed in. 1519 */ 1520 public boolean matchesChip(RecipientChip chip, int offset) { 1521 int start = getChipStart(chip); 1522 int end = getChipEnd(chip); 1523 if (start == -1 || end == -1) { 1524 return false; 1525 } 1526 return (offset >= start && offset <= end); 1527 } 1528 1529 1530 /** 1531 * Return whether a touch event was inside the delete target of 1532 * a selected chip. It is in the delete target if: 1533 * 1) the x and y points of the event are within the 1534 * delete assset. 1535 * 2) the point tapped would have caused a cursor to appear 1536 * right after the selected chip. 1537 * @return boolean 1538 */ 1539 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1540 // Figure out the bounds of this chip and whether or not 1541 // the user clicked in the X portion. 1542 return chip.isSelected() && offset == getChipEnd(chip); 1543 } 1544 1545 /** 1546 * Remove the chip and any text associated with it from the RecipientEditTextView. 1547 */ 1548 private void removeChip(RecipientChip chip) { 1549 Spannable spannable = getSpannable(); 1550 int spanStart = spannable.getSpanStart(chip); 1551 int spanEnd = spannable.getSpanEnd(chip); 1552 Editable text = getText(); 1553 int toDelete = spanEnd; 1554 boolean wasSelected = chip == mSelectedChip; 1555 // Clear that there is a selected chip before updating any text. 1556 if (wasSelected) { 1557 mSelectedChip = null; 1558 } 1559 // Always remove trailing spaces when removing a chip. 1560 while (toDelete >= 0 && toDelete < text.length() && text.charAt(toDelete) == ' ') { 1561 toDelete++; 1562 } 1563 spannable.removeSpan(chip); 1564 text.delete(spanStart, toDelete); 1565 if (wasSelected) { 1566 clearSelectedChip(); 1567 } 1568 } 1569 1570 /** 1571 * Replace this currently selected chip with a new chip 1572 * that uses the contact data provided. 1573 */ 1574 public void replaceChip(RecipientChip chip, RecipientEntry entry) { 1575 boolean wasSelected = chip == mSelectedChip; 1576 if (wasSelected) { 1577 mSelectedChip = null; 1578 } 1579 int start = getChipStart(chip); 1580 int end = getChipEnd(chip); 1581 getSpannable().removeSpan(chip); 1582 Editable editable = getText(); 1583 CharSequence chipText = createChip(entry, false); 1584 if (start == -1 || end == -1) { 1585 Log.e(TAG, "The chip to replace does not exist but should."); 1586 editable.insert(0, chipText); 1587 } else { 1588 // There may be a space to replace with this chip's new associated 1589 // space. Check for it. 1590 int toReplace = end; 1591 while (toReplace >= 0 && toReplace < editable.length() 1592 && editable.charAt(toReplace) == ' ') { 1593 toReplace++; 1594 } 1595 editable.replace(start, toReplace, chipText); 1596 } 1597 setCursorVisible(true); 1598 if (wasSelected) { 1599 clearSelectedChip(); 1600 } 1601 } 1602 1603 /** 1604 * Handle click events for a chip. When a selected chip receives a click 1605 * event, see if that event was in the delete icon. If so, delete it. 1606 * Otherwise, unselect the chip. 1607 */ 1608 public void onClick(RecipientChip chip, int offset, float x, float y) { 1609 if (chip.isSelected()) { 1610 if (isInDelete(chip, offset, x, y)) { 1611 removeChip(chip); 1612 } else { 1613 clearSelectedChip(); 1614 } 1615 } 1616 } 1617 1618 private boolean chipsPending() { 1619 return mPendingChipsCount > 0 || (mRemovedSpans != null && mRemovedSpans.size() > 0); 1620 } 1621 1622 @Override 1623 public void removeTextChangedListener(TextWatcher watcher) { 1624 mTextWatcher = null; 1625 super.removeTextChangedListener(watcher); 1626 } 1627 1628 private class RecipientTextWatcher implements TextWatcher { 1629 @Override 1630 public void afterTextChanged(Editable s) { 1631 // If the text has been set to null or empty, make sure we remove 1632 // all the spans we applied. 1633 if (TextUtils.isEmpty(s)) { 1634 // Remove all the chips spans. 1635 Spannable spannable = getSpannable(); 1636 RecipientChip[] chips = spannable.getSpans(0, getText().length(), 1637 RecipientChip.class); 1638 for (RecipientChip chip : chips) { 1639 spannable.removeSpan(chip); 1640 } 1641 if (mMoreChip != null) { 1642 spannable.removeSpan(mMoreChip); 1643 } 1644 return; 1645 } 1646 // Get whether there are any recipients pending addition to the 1647 // view. If there are, don't do anything in the text watcher. 1648 if (chipsPending()) { 1649 return; 1650 } 1651 if (mSelectedChip != null) { 1652 setCursorVisible(true); 1653 setSelection(getText().length()); 1654 clearSelectedChip(); 1655 } 1656 int length = s.length(); 1657 // Make sure there is content there to parse and that it is 1658 // not just the commit character. 1659 if (length > 1) { 1660 char last; 1661 int end = getSelectionEnd() == 0 ? 0 : getSelectionEnd() - 1; 1662 int len = length() - 1; 1663 if (end != len) { 1664 last = s.charAt(end); 1665 } else { 1666 last = s.charAt(len); 1667 } 1668 if (last == COMMIT_CHAR_SEMICOLON || last == COMMIT_CHAR_COMMA) { 1669 commitByCharacter(); 1670 } else if (last == COMMIT_CHAR_SPACE) { 1671 // Check if this is a valid email address. If it is, 1672 // commit it. 1673 String text = getText().toString(); 1674 int tokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 1675 String sub = text.substring(tokenStart, mTokenizer.findTokenEnd(text, 1676 tokenStart)); 1677 if (mValidator != null && mValidator.isValid(sub)) { 1678 commitByCharacter(); 1679 } 1680 } 1681 } 1682 } 1683 1684 @Override 1685 public void onTextChanged(CharSequence s, int start, int before, int count) { 1686 // Do nothing. 1687 } 1688 1689 @Override 1690 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 1691 } 1692 } 1693 1694 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 1695 private RecipientChip createFreeChip(RecipientEntry entry) { 1696 String displayText = entry.getDestination(); 1697 if (displayText.indexOf(",") == -1) { 1698 displayText = (String) mTokenizer.terminateToken(displayText); 1699 } 1700 try { 1701 return constructChipSpan(entry, -1, false); 1702 } catch (NullPointerException e) { 1703 Log.e(TAG, e.getMessage(), e); 1704 return null; 1705 } 1706 } 1707 1708 @Override 1709 protected Void doInBackground(Void... params) { 1710 if (mIndividualReplacements != null) { 1711 mIndividualReplacements.cancel(true); 1712 } 1713 // For each chip in the list, look up the matching contact. 1714 // If there is a match, replace that chip with the matching 1715 // chip. 1716 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 1717 RecipientChip[] existingChips = getSortedRecipients(); 1718 for (int i = 0; i < existingChips.length; i++) { 1719 originalRecipients.add(existingChips[i]); 1720 } 1721 if (mRemovedSpans != null) { 1722 originalRecipients.addAll(mRemovedSpans); 1723 } 1724 String[] addresses = new String[originalRecipients.size()]; 1725 for (int i = 0; i < originalRecipients.size(); i++) { 1726 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1727 } 1728 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1729 .getMatchingRecipients(getContext(), addresses); 1730 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 1731 for (final RecipientChip temp : originalRecipients) { 1732 RecipientEntry entry = null; 1733 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1734 && getSpannable().getSpanStart(temp) != -1) { 1735 // Replace this. 1736 entry = createValidatedEntry(entries.get(tokenizeAddress(temp.getEntry() 1737 .getDestination()))); 1738 } 1739 if (entry != null) { 1740 replacements.add(createFreeChip(entry)); 1741 } else { 1742 replacements.add(temp); 1743 } 1744 } 1745 if (replacements != null && replacements.size() > 0) { 1746 mHandler.post(new Runnable() { 1747 @Override 1748 public void run() { 1749 SpannableStringBuilder text = new SpannableStringBuilder(getText() 1750 .toString()); 1751 Editable oldText = getText(); 1752 int start, end; 1753 int i = 0; 1754 for (RecipientChip chip : originalRecipients) { 1755 start = oldText.getSpanStart(chip); 1756 if (start != -1) { 1757 end = oldText.getSpanEnd(chip); 1758 text.removeSpan(chip); 1759 // Leave a spot for the space! 1760 RecipientChip replacement = replacements.get(i); 1761 text.setSpan(replacement, start, end, 1762 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1763 replacement.setOriginalText(text.toString().substring(start, end)); 1764 } 1765 i++; 1766 } 1767 Editable editable = getText(); 1768 editable.clear(); 1769 editable.insert(0, text); 1770 originalRecipients.clear(); 1771 } 1772 }); 1773 } 1774 return null; 1775 } 1776 } 1777 1778 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 1779 @SuppressWarnings("unchecked") 1780 @Override 1781 protected Void doInBackground(Object... params) { 1782 // For each chip in the list, look up the matching contact. 1783 // If there is a match, replace that chip with the matching 1784 // chip. 1785 final ArrayList<RecipientChip> originalRecipients = 1786 (ArrayList<RecipientChip>) params[0]; 1787 String[] addresses = new String[originalRecipients.size()]; 1788 for (int i = 0; i < originalRecipients.size(); i++) { 1789 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1790 } 1791 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1792 .getMatchingRecipients(getContext(), addresses); 1793 for (final RecipientChip temp : originalRecipients) { 1794 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1795 && getSpannable().getSpanStart(temp) != -1) { 1796 // Replace this. 1797 final RecipientEntry entry = createValidatedEntry(entries 1798 .get(tokenizeAddress(temp.getEntry().getDestination()))); 1799 if (entry != null) { 1800 mHandler.post(new Runnable() { 1801 @Override 1802 public void run() { 1803 replaceChip(temp, entry); 1804 } 1805 }); 1806 } 1807 } 1808 } 1809 return null; 1810 } 1811 } 1812 1813 1814 /** 1815 * MoreImageSpan is a simple class created for tracking the existence of a 1816 * more chip across activity restarts/ 1817 */ 1818 private class MoreImageSpan extends ImageSpan { 1819 public MoreImageSpan(Drawable b) { 1820 super(b); 1821 } 1822 } 1823 1824 @Override 1825 public boolean onDown(MotionEvent e) { 1826 return false; 1827 } 1828 1829 @Override 1830 public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { 1831 // Do nothing. 1832 return false; 1833 } 1834 1835 @Override 1836 public void onLongPress(MotionEvent event) { 1837 if (mSelectedChip != null) { 1838 return; 1839 } 1840 float x = event.getX(); 1841 float y = event.getY(); 1842 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 1843 RecipientChip currentChip = findChip(offset); 1844 if (currentChip != null) { 1845 // Copy the selected chip email address. 1846 showCopyDialog(currentChip.getEntry().getDestination()); 1847 } 1848 } 1849 1850 private void showCopyDialog(final String address) { 1851 mCopyAddress = address; 1852 mCopyDialog.setTitle(address); 1853 mCopyDialog.setContentView(mCopyViewRes); 1854 mCopyDialog.setCancelable(true); 1855 mCopyDialog.setCanceledOnTouchOutside(true); 1856 mCopyDialog.findViewById(android.R.id.button1).setOnClickListener(this); 1857 mCopyDialog.setOnDismissListener(this); 1858 mCopyDialog.show(); 1859 } 1860 1861 @Override 1862 public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) { 1863 // Do nothing. 1864 return false; 1865 } 1866 1867 @Override 1868 public void onShowPress(MotionEvent e) { 1869 // Do nothing. 1870 } 1871 1872 @Override 1873 public boolean onSingleTapUp(MotionEvent e) { 1874 // Do nothing. 1875 return false; 1876 } 1877 1878 @Override 1879 public void onDismiss(DialogInterface dialog) { 1880 mCopyAddress = null; 1881 } 1882 1883 @Override 1884 public void onClick(View v) { 1885 // Copy this to the clipboard. 1886 ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService( 1887 Context.CLIPBOARD_SERVICE); 1888 clipboard.setPrimaryClip(ClipData.newPlainText("", mCopyAddress)); 1889 mCopyDialog.dismiss(); 1890 } 1891} 1892