RecipientEditTextView.java revision 54effe95bd2f988e5d7472f17f4fafdc29fe616e
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 && mSelectedChip.getEntry().getContactId() != RecipientEntry.INVALID_CONTACT) { 306 clearSelectedChip(); 307 } else { 308 // Reset any pending chips as they would have been handled 309 // when the field lost focus. 310 if (mPendingChipsCount > 0) { 311 postHandlePendingChips(); 312 } else { 313 Editable editable = getText(); 314 int end = getSelectionEnd(); 315 int start = mTokenizer.findTokenStart(editable, end); 316 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 317 if ((chips == null || chips.length == 0)) { 318 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 319 // In the middle of chip; treat this as an edit 320 // and commit the whole token. 321 if (whatEnd != getSelectionEnd()) { 322 handleEdit(start, whatEnd); 323 } else { 324 commitChip(start, end, editable); 325 } 326 } 327 } 328 mHandler.post(mAddTextWatcher); 329 } 330 createMoreChip(); 331 } 332 333 private void expand() { 334 removeMoreChip(); 335 setCursorVisible(true); 336 Editable text = getText(); 337 setSelection(text != null && text.length() > 0 ? text.length() : 0); 338 // If there are any temporary chips, try replacing them now that the user 339 // has expanded the field. 340 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0) { 341 new RecipientReplacementTask().execute(); 342 mTemporaryRecipients = null; 343 } 344 } 345 346 private CharSequence ellipsizeText(CharSequence text, TextPaint paint, float maxWidth) { 347 paint.setTextSize(mChipFontSize); 348 if (maxWidth <= 0 && Log.isLoggable(TAG, Log.DEBUG)) { 349 Log.d(TAG, "Max width is negative: " + maxWidth); 350 } 351 return TextUtils.ellipsize(text, paint, maxWidth, 352 TextUtils.TruncateAt.END); 353 } 354 355 private Bitmap createSelectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 356 // Ellipsize the text so that it takes AT MOST the entire width of the 357 // autocomplete text entry area. Make sure to leave space for padding 358 // on the sides. 359 int height = (int) mChipHeight; 360 int deleteWidth = height; 361 CharSequence ellipsizedText = ellipsizeText(contact.getDisplayName(), paint, 362 calculateAvailableWidth(true) - deleteWidth); 363 364 // Make sure there is a minimum chip width so the user can ALWAYS 365 // tap a chip without difficulty. 366 int width = Math.max(deleteWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 367 ellipsizedText.length())) 368 + (mChipPadding * 2) + deleteWidth); 369 370 // Create the background of the chip. 371 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 372 Canvas canvas = new Canvas(tmpBitmap); 373 if (mChipBackgroundPressed != null) { 374 mChipBackgroundPressed.setBounds(0, 0, width, height); 375 mChipBackgroundPressed.draw(canvas); 376 paint.setColor(sSelectedTextColor); 377 // Vertically center the text in the chip. 378 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 379 getTextYOffset((String) ellipsizedText, paint, height), paint); 380 // Make the delete a square. 381 mChipDelete.setBounds(width - deleteWidth, 0, width, height); 382 mChipDelete.draw(canvas); 383 } else { 384 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 385 } 386 return tmpBitmap; 387 } 388 389 390 /** 391 * Get the background drawable for a RecipientChip. 392 */ 393 public Drawable getChipBackground(RecipientEntry contact) { 394 return (mValidator != null && mValidator.isValid(contact.getDestination())) ? 395 mChipBackground : mInvalidChipBackground; 396 } 397 398 private Bitmap createUnselectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 399 // Ellipsize the text so that it takes AT MOST the entire width of the 400 // autocomplete text entry area. Make sure to leave space for padding 401 // on the sides. 402 int height = (int) mChipHeight; 403 int iconWidth = height; 404 String displayText = 405 !TextUtils.isEmpty(contact.getDisplayName()) ? contact.getDisplayName() : 406 !TextUtils.isEmpty(contact.getDestination()) ? contact.getDestination() : ""; 407 CharSequence ellipsizedText = ellipsizeText(displayText, paint, 408 calculateAvailableWidth(false) - iconWidth); 409 // Make sure there is a minimum chip width so the user can ALWAYS 410 // tap a chip without difficulty. 411 int width = Math.max(iconWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 412 ellipsizedText.length())) 413 + (mChipPadding * 2) + iconWidth); 414 415 // Create the background of the chip. 416 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 417 Canvas canvas = new Canvas(tmpBitmap); 418 Drawable background = getChipBackground(contact); 419 if (background != null) { 420 background.setBounds(0, 0, width, height); 421 background.draw(canvas); 422 423 // Don't draw photos for recipients that have been typed in. 424 if (contact.getContactId() != RecipientEntry.INVALID_CONTACT) { 425 byte[] photoBytes = contact.getPhotoBytes(); 426 // There may not be a photo yet if anything but the first contact address 427 // was selected. 428 if (photoBytes == null && contact.getPhotoThumbnailUri() != null) { 429 // TODO: cache this in the recipient entry? 430 ((BaseRecipientAdapter) getAdapter()).fetchPhoto(contact, contact 431 .getPhotoThumbnailUri()); 432 photoBytes = contact.getPhotoBytes(); 433 } 434 435 Bitmap photo; 436 if (photoBytes != null) { 437 photo = BitmapFactory.decodeByteArray(photoBytes, 0, photoBytes.length); 438 } else { 439 // TODO: can the scaled down default photo be cached? 440 photo = mDefaultContactPhoto; 441 } 442 // Draw the photo on the left side. 443 Matrix matrix = new Matrix(); 444 RectF src = new RectF(0, 0, photo.getWidth(), photo.getHeight()); 445 RectF dst = new RectF(width - iconWidth, 0, width, height); 446 matrix.setRectToRect(src, dst, Matrix.ScaleToFit.CENTER); 447 canvas.drawBitmap(photo, matrix, paint); 448 } else { 449 // Don't leave any space for the icon. It isn't being drawn. 450 iconWidth = 0; 451 } 452 453 // Vertically center the text in the chip. 454 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 455 getTextYOffset((String)ellipsizedText, paint, height), paint); 456 } else { 457 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 458 } 459 return tmpBitmap; 460 } 461 462 private float getTextYOffset(String text, TextPaint paint, int height) { 463 Rect bounds = new Rect(); 464 paint.getTextBounds((String)text, 0, text.length(), bounds); 465 int textHeight = bounds.bottom - bounds.top - (int)paint.descent(); 466 return height - ((height - textHeight) / 2); 467 } 468 469 public RecipientChip constructChipSpan(RecipientEntry contact, int offset, boolean pressed) 470 throws NullPointerException { 471 if (mChipBackground == null) { 472 throw new NullPointerException( 473 "Unable to render any chips as setChipDimensions was not called."); 474 } 475 Layout layout = getLayout(); 476 477 TextPaint paint = getPaint(); 478 float defaultSize = paint.getTextSize(); 479 int defaultColor = paint.getColor(); 480 481 Bitmap tmpBitmap; 482 if (pressed) { 483 tmpBitmap = createSelectedChip(contact, paint, layout); 484 485 } else { 486 tmpBitmap = createUnselectedChip(contact, paint, layout); 487 } 488 489 // Pass the full text, un-ellipsized, to the chip. 490 Drawable result = new BitmapDrawable(getResources(), tmpBitmap); 491 result.setBounds(0, 0, tmpBitmap.getWidth(), tmpBitmap.getHeight()); 492 RecipientChip recipientChip = new RecipientChip(result, contact, offset); 493 // Return text to the original size. 494 paint.setTextSize(defaultSize); 495 paint.setColor(defaultColor); 496 return recipientChip; 497 } 498 499 /** 500 * Calculate the bottom of the line the chip will be located on using: 501 * 1) which line the chip appears on 502 * 2) the height of a chip 503 * 3) padding built into the edit text view 504 */ 505 private int calculateOffsetFromBottom(int line) { 506 // Line offsets start at zero. 507 int actualLine = getLineCount() - (line + 1); 508 return -((actualLine * ((int) mChipHeight) + getPaddingBottom()) + getPaddingTop()) 509 + getDropDownVerticalOffset(); 510 } 511 512 /** 513 * Get the max amount of space a chip can take up. The formula takes into 514 * account the width of the EditTextView, any view padding, and padding 515 * that will be added to the chip. 516 */ 517 private float calculateAvailableWidth(boolean pressed) { 518 return getWidth() - getPaddingLeft() - getPaddingRight() - (mChipPadding * 2); 519 } 520 521 /** 522 * Set all chip dimensions and resources. This has to be done from the 523 * application as this is a static library. 524 * @param chipBackground 525 * @param chipBackgroundPressed 526 * @param invalidChip 527 * @param chipDelete 528 * @param defaultContact 529 * @param moreResource 530 * @param alternatesLayout 531 * @param chipHeight 532 * @param padding Padding around the text in a chip 533 * @param chipFontSize 534 * @param copyViewRes 535 */ 536 public void setChipDimensions(Drawable chipBackground, Drawable chipBackgroundPressed, 537 Drawable invalidChip, Drawable chipDelete, Bitmap defaultContact, int moreResource, 538 int alternatesLayout, float chipHeight, float padding, 539 float chipFontSize, int copyViewRes) { 540 mChipBackground = chipBackground; 541 mChipBackgroundPressed = chipBackgroundPressed; 542 mChipDelete = chipDelete; 543 mChipPadding = (int) padding; 544 mAlternatesLayout = alternatesLayout; 545 mDefaultContactPhoto = defaultContact; 546 mMoreItem = (TextView) LayoutInflater.from(getContext()).inflate(moreResource, null); 547 mChipHeight = chipHeight; 548 mChipFontSize = chipFontSize; 549 mInvalidChipBackground = invalidChip; 550 mCopyViewRes = copyViewRes; 551 } 552 553 /** 554 * Set whether to shrink the recipients field such that at most 555 * one line of recipients chips are shown when the field loses 556 * focus. By default, the number of displayed recipients will be 557 * limited and a "more" chip will be shown when focus is lost. 558 * @param shrink 559 */ 560 public void setOnFocusListShrinkRecipients(boolean shrink) { 561 mShouldShrink = shrink; 562 } 563 564 @Override 565 public void onSizeChanged(int width, int height, int oldw, int oldh) { 566 super.onSizeChanged(width, height, oldw, oldh); 567 if (width != 0 && height != 0 && mPendingChipsCount > 0) { 568 postHandlePendingChips(); 569 } 570 // Try to find the scroll view parent, if it exists. 571 if (mScrollView == null && !mTried) { 572 ViewParent parent = getParent(); 573 while (parent != null && !(parent instanceof ScrollView)) { 574 parent = parent.getParent(); 575 } 576 if (parent != null) { 577 mScrollView = (ScrollView) parent; 578 } 579 mTried = true; 580 } 581 } 582 583 private void postHandlePendingChips() { 584 mHandler.removeCallbacks(mHandlePendingChips); 585 mHandler.post(mHandlePendingChips); 586 } 587 588 private void handlePendingChips() { 589 if (mPendingChipsCount <= 0) { 590 return; 591 } 592 if (getWidth() <= 0) { 593 // The widget has not been sized yet. 594 // This will be called as a result of onSizeChanged 595 // at a later point. 596 return; 597 } 598 synchronized (mPendingChips) { 599 mTemporaryRecipients = new ArrayList<RecipientChip>(mPendingChipsCount); 600 Editable editable = getText(); 601 // Tokenize! 602 for (int i = 0; i < mPendingChips.size(); i++) { 603 String current = mPendingChips.get(i); 604 int tokenStart = editable.toString().indexOf(current); 605 int tokenEnd = tokenStart + current.length(); 606 if (tokenStart >= 0) { 607 // When we have a valid token, include it with the token 608 // to the left. 609 if (tokenEnd < editable.length() - 2 610 && editable.charAt(tokenEnd) == COMMIT_CHAR_COMMA) { 611 tokenEnd++; 612 } 613 createReplacementChip(tokenStart, tokenEnd, editable); 614 } 615 mPendingChipsCount--; 616 } 617 sanitizeSpannable(); 618 if (mTemporaryRecipients != null 619 && mTemporaryRecipients.size() <= RecipientAlternatesAdapter.MAX_LOOKUPS) { 620 if (hasFocus() || mTemporaryRecipients.size() < CHIP_LIMIT) { 621 new RecipientReplacementTask().execute(); 622 mTemporaryRecipients = null; 623 } else { 624 // Create the "more" chip 625 mIndividualReplacements = new IndividualReplacementTask(); 626 mIndividualReplacements.execute(new ArrayList<RecipientChip>( 627 mTemporaryRecipients.subList(0, CHIP_LIMIT))); 628 629 createMoreChip(); 630 } 631 } else { 632 // There are too many recipients to look up, so just fall back 633 // to 634 // showing addresses for all of them. 635 mTemporaryRecipients = null; 636 createMoreChip(); 637 } 638 mPendingChipsCount = 0; 639 mPendingChips.clear(); 640 } 641 } 642 643 /** 644 * Remove any characters after the last valid chip. 645 */ 646 private void sanitizeSpannable() { 647 // Find the last chip; eliminate any commit characters after it. 648 RecipientChip[] chips = getRecipients(); 649 if (chips != null && chips.length > 0) { 650 int end; 651 ImageSpan lastSpan; 652 if (mMoreChip != null) { 653 lastSpan = mMoreChip; 654 } else { 655 lastSpan = chips[chips.length - 1]; 656 } 657 end = getSpannable().getSpanEnd(lastSpan); 658 Editable editable = getText(); 659 int length = editable.length(); 660 if (length > end) { 661 // See what characters occur after that and eliminate them. 662 if (Log.isLoggable(TAG, Log.DEBUG)) { 663 Log.d(TAG, "There were extra characters after the last tokenizable entry." 664 + editable); 665 } 666 editable.delete(end + 1, length); 667 } 668 } 669 } 670 671 /** 672 * Create a chip that represents just the email address of a recipient. At some later 673 * point, this chip will be attached to a real contact entry, if one exists. 674 */ 675 private void createReplacementChip(int tokenStart, int tokenEnd, Editable editable) { 676 if (alreadyHasChip(tokenStart, tokenEnd)) { 677 // There is already a chip present at this location. 678 // Don't recreate it. 679 return; 680 } 681 String token = editable.toString().substring(tokenStart, tokenEnd); 682 int commitCharIndex = token.trim().lastIndexOf(COMMIT_CHAR_COMMA); 683 if (commitCharIndex == token.length() - 1) { 684 token = token.substring(0, token.length() - 1); 685 } 686 RecipientEntry entry = createTokenizedEntry(token); 687 if (entry != null) { 688 String destText = entry.getDestination(); 689 destText = (String) mTokenizer.terminateToken(destText); 690 // Always leave a blank space at the end of a chip. 691 int textLength = destText.length() - 1; 692 SpannableString chipText = new SpannableString(destText); 693 int end = getSelectionEnd(); 694 int start = mTokenizer.findTokenStart(getText(), end); 695 RecipientChip chip = null; 696 try { 697 chip = constructChipSpan(entry, start, false); 698 chipText.setSpan(chip, 0, textLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 699 } catch (NullPointerException e) { 700 Log.e(TAG, e.getMessage(), e); 701 } 702 703 editable.replace(tokenStart, tokenEnd, chipText); 704 // Add this chip to the list of entries "to replace" 705 if (chip != null) { 706 chip.setOriginalText(chipText.toString()); 707 mTemporaryRecipients.add(chip); 708 } 709 } 710 } 711 712 private RecipientEntry createTokenizedEntry(String token) { 713 if (TextUtils.isEmpty(token)) { 714 return null; 715 } 716 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(token); 717 String display = null; 718 if (isValid(token) && tokens != null && tokens.length > 0) { 719 // If we can get a name from tokenizing, then generate an entry from 720 // this. 721 display = tokens[0].getName(); 722 if (!TextUtils.isEmpty(display)) { 723 return RecipientEntry.constructGeneratedEntry(display, token); 724 } else { 725 display = tokens[0].getAddress(); 726 if (!TextUtils.isEmpty(display)) { 727 return RecipientEntry.constructFakeEntry(display); 728 } 729 } 730 } 731 // Unable to validate the token or to create a valid token from it. 732 // Just create a chip the user can edit. 733 if (mValidator != null && !mValidator.isValid(token)) { 734 // Try fixing up the entry using the validator. 735 token = mValidator.fixText(token).toString(); 736 if (!TextUtils.isEmpty(token)) { 737 // protect against the case of a validator with a null domain, 738 // which doesn't add a domain to the token 739 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(token); 740 if (tokenized.length > 0) { 741 token = tokenized[0].getAddress(); 742 } 743 } 744 } 745 // Otherwise, fallback to just creating an editable email address chip. 746 return RecipientEntry.constructFakeEntry(token); 747 } 748 749 private boolean isValid(String text) { 750 return mValidator == null ? true : mValidator.isValid(text); 751 } 752 753 private String tokenizeAddress(String destination) { 754 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(destination); 755 if (tokens != null && tokens.length > 0) { 756 return tokens[0].getAddress(); 757 } 758 return destination; 759 } 760 761 @Override 762 public void setTokenizer(Tokenizer tokenizer) { 763 mTokenizer = tokenizer; 764 super.setTokenizer(mTokenizer); 765 } 766 767 @Override 768 public void setValidator(Validator validator) { 769 mValidator = validator; 770 super.setValidator(validator); 771 } 772 773 /** 774 * We cannot use the default mechanism for replaceText. Instead, 775 * we override onItemClickListener so we can get all the associated 776 * contact information including display text, address, and id. 777 */ 778 @Override 779 protected void replaceText(CharSequence text) { 780 return; 781 } 782 783 /** 784 * Dismiss any selected chips when the back key is pressed. 785 */ 786 @Override 787 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 788 if (keyCode == KeyEvent.KEYCODE_BACK) { 789 clearSelectedChip(); 790 } 791 return super.onKeyPreIme(keyCode, event); 792 } 793 794 /** 795 * Monitor key presses in this view to see if the user types 796 * any commit keys, which consist of ENTER, TAB, or DPAD_CENTER. 797 * If the user has entered text that has contact matches and types 798 * a commit key, create a chip from the topmost matching contact. 799 * If the user has entered text that has no contact matches and types 800 * a commit key, then create a chip from the text they have entered. 801 */ 802 @Override 803 public boolean onKeyUp(int keyCode, KeyEvent event) { 804 switch (keyCode) { 805 case KeyEvent.KEYCODE_ENTER: 806 case KeyEvent.KEYCODE_DPAD_CENTER: 807 if (event.hasNoModifiers()) { 808 if (commitDefault()) { 809 return true; 810 } 811 if (mSelectedChip != null) { 812 clearSelectedChip(); 813 return true; 814 } else if (focusNext()) { 815 return true; 816 } 817 } 818 break; 819 case KeyEvent.KEYCODE_TAB: 820 if (event.hasNoModifiers()) { 821 if (mSelectedChip != null) { 822 clearSelectedChip(); 823 } else { 824 commitDefault(); 825 } 826 if (focusNext()) { 827 return true; 828 } 829 } 830 } 831 return super.onKeyUp(keyCode, event); 832 } 833 834 private boolean focusNext() { 835 View next = focusSearch(View.FOCUS_DOWN); 836 if (next != null) { 837 next.requestFocus(); 838 return true; 839 } 840 return false; 841 } 842 843 /** 844 * Create a chip from the default selection. If the popup is showing, the 845 * default is the first item in the popup suggestions list. Otherwise, it is 846 * whatever the user had typed in. End represents where the the tokenizer 847 * should search for a token to turn into a chip. 848 * @return If a chip was created from a real contact. 849 */ 850 private boolean commitDefault() { 851 Editable editable = getText(); 852 int end = getSelectionEnd(); 853 int start = mTokenizer.findTokenStart(editable, end); 854 855 if (shouldCreateChip(start, end)) { 856 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 857 // In the middle of chip; treat this as an edit 858 // and commit the whole token. 859 if (whatEnd != getSelectionEnd()) { 860 handleEdit(start, whatEnd); 861 return true; 862 } 863 return commitChip(start, end , editable); 864 } 865 return false; 866 } 867 868 private void commitByCharacter() { 869 Editable editable = getText(); 870 int end = getSelectionEnd(); 871 int start = mTokenizer.findTokenStart(editable, end); 872 if (shouldCreateChip(start, end)) { 873 commitChip(start, end, editable); 874 } 875 setSelection(getText().length()); 876 } 877 878 private boolean commitChip(int start, int end, Editable editable) { 879 if (getAdapter().getCount() > 0 && enoughToFilter()) { 880 // choose the first entry. 881 submitItemAtPosition(0); 882 dismissDropDown(); 883 return true; 884 } else { 885 int tokenEnd = mTokenizer.findTokenEnd(editable, start); 886 String text = editable.toString().substring(start, tokenEnd).trim(); 887 clearComposingText(); 888 if (text != null && text.length() > 0 && !text.equals(" ")) { 889 RecipientEntry entry = createTokenizedEntry(text); 890 if (entry != null) { 891 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 892 CharSequence chipText = createChip(entry, false); 893 editable.replace(start, end, chipText); 894 } 895 dismissDropDown(); 896 return true; 897 } 898 } 899 return false; 900 } 901 902 private boolean shouldCreateChip(int start, int end) { 903 return hasFocus() && enoughToFilter() && !alreadyHasChip(start, end); 904 } 905 906 private boolean alreadyHasChip(int start, int end) { 907 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 908 if ((chips == null || chips.length == 0)) { 909 return false; 910 } 911 return true; 912 } 913 914 private void handleEdit(int start, int end) { 915 // This is in the middle of a chip, so select out the whole chip 916 // and commit it. 917 Editable editable = getText(); 918 setSelection(end); 919 String text = getText().toString().substring(start, end); 920 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 921 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 922 CharSequence chipText = createChip(entry, false); 923 editable.replace(start, getSelectionEnd(), chipText); 924 dismissDropDown(); 925 } 926 927 /** 928 * If there is a selected chip, delegate the key events 929 * to the selected chip. 930 */ 931 @Override 932 public boolean onKeyDown(int keyCode, KeyEvent event) { 933 if (mSelectedChip != null && keyCode == KeyEvent.KEYCODE_DEL) { 934 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 935 mAlternatesPopup.dismiss(); 936 } 937 removeChip(mSelectedChip); 938 } 939 940 if (keyCode == KeyEvent.KEYCODE_ENTER && event.hasNoModifiers()) { 941 return true; 942 } 943 944 return super.onKeyDown(keyCode, event); 945 } 946 947 private Spannable getSpannable() { 948 return getText(); 949 } 950 951 private int getChipStart(RecipientChip chip) { 952 return getSpannable().getSpanStart(chip); 953 } 954 955 private int getChipEnd(RecipientChip chip) { 956 return getSpannable().getSpanEnd(chip); 957 } 958 959 /** 960 * Instead of filtering on the entire contents of the edit box, 961 * this subclass method filters on the range from 962 * {@link Tokenizer#findTokenStart} to {@link #getSelectionEnd} 963 * if the length of that range meets or exceeds {@link #getThreshold} 964 * and makes sure that the range is not already a Chip. 965 */ 966 @Override 967 protected void performFiltering(CharSequence text, int keyCode) { 968 if (enoughToFilter()) { 969 int end = getSelectionEnd(); 970 int start = mTokenizer.findTokenStart(text, end); 971 // If this is a RecipientChip, don't filter 972 // on its contents. 973 Spannable span = getSpannable(); 974 RecipientChip[] chips = span.getSpans(start, end, RecipientChip.class); 975 if (chips != null && chips.length > 0) { 976 return; 977 } 978 } 979 super.performFiltering(text, keyCode); 980 } 981 982 private void clearSelectedChip() { 983 if (mSelectedChip != null) { 984 unselectChip(mSelectedChip); 985 mSelectedChip = null; 986 } 987 setCursorVisible(true); 988 } 989 990 /** 991 * Monitor touch events in the RecipientEditTextView. 992 * If the view does not have focus, any tap on the view 993 * will just focus the view. If the view has focus, determine 994 * if the touch target is a recipient chip. If it is and the chip 995 * is not selected, select it and clear any other selected chips. 996 * If it isn't, then select that chip. 997 */ 998 @Override 999 public boolean onTouchEvent(MotionEvent event) { 1000 if (!isFocused()) { 1001 // Ignore any chip taps until this view is focused. 1002 return super.onTouchEvent(event); 1003 } 1004 1005 boolean handled = super.onTouchEvent(event); 1006 int action = event.getAction(); 1007 boolean chipWasSelected = false; 1008 if (mSelectedChip == null) { 1009 mGestureDetector.onTouchEvent(event); 1010 } 1011 if (mCopyAddress == null && action == MotionEvent.ACTION_UP) { 1012 float x = event.getX(); 1013 float y = event.getY(); 1014 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 1015 RecipientChip currentChip = findChip(offset); 1016 if (currentChip != null) { 1017 if (action == MotionEvent.ACTION_UP) { 1018 if (mSelectedChip != null && mSelectedChip != currentChip) { 1019 clearSelectedChip(); 1020 mSelectedChip = selectChip(currentChip); 1021 } else if (mSelectedChip == null) { 1022 // Selection may have moved due to the tap event, 1023 // but make sure we correctly reset selection to the 1024 // end so that any unfinished chips are committed. 1025 setSelection(getText().length()); 1026 commitDefault(); 1027 mSelectedChip = selectChip(currentChip); 1028 } else { 1029 onClick(mSelectedChip, offset, x, y); 1030 } 1031 } 1032 chipWasSelected = true; 1033 handled = true; 1034 } 1035 } 1036 if (action == MotionEvent.ACTION_UP && !chipWasSelected) { 1037 clearSelectedChip(); 1038 } 1039 return handled; 1040 } 1041 1042 private void scrollLineIntoView(int line) { 1043 if (mScrollView != null) { 1044 mScrollView.scrollBy(0, calculateOffsetFromBottom(line)); 1045 } 1046 } 1047 1048 private void showAlternates(RecipientChip currentChip, ListPopupWindow alternatesPopup, 1049 int width, Context context) { 1050 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1051 int bottom = calculateOffsetFromBottom(line); 1052 // Align the alternates popup with the left side of the View, 1053 // regardless of the position of the chip tapped. 1054 alternatesPopup.setWidth(width); 1055 alternatesPopup.setAnchorView(this); 1056 alternatesPopup.setVerticalOffset(bottom); 1057 alternatesPopup.setAdapter(createAlternatesAdapter(currentChip)); 1058 alternatesPopup.setOnItemClickListener(mAlternatesListener); 1059 // Clear the checked item. 1060 mCheckedItem = -1; 1061 alternatesPopup.show(); 1062 ListView listView = alternatesPopup.getListView(); 1063 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1064 // Checked item would be -1 if the adapter has not 1065 // loaded the view that should be checked yet. The 1066 // variable will be set correctly when onCheckedItemChanged 1067 // is called in a separate thread. 1068 if (mCheckedItem != -1) { 1069 listView.setItemChecked(mCheckedItem, true); 1070 mCheckedItem = -1; 1071 } 1072 } 1073 1074 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 1075 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 1076 mAlternatesLayout, this); 1077 } 1078 1079 private ListAdapter createSingleAddressAdapter(RecipientChip currentChip) { 1080 return new SingleRecipientArrayAdapter(getContext(), mAlternatesLayout, currentChip 1081 .getEntry()); 1082 } 1083 1084 @Override 1085 public void onCheckedItemChanged(int position) { 1086 ListView listView = mAlternatesPopup.getListView(); 1087 if (listView != null && listView.getCheckedItemCount() == 0) { 1088 listView.setItemChecked(position, true); 1089 } 1090 mCheckedItem = position; 1091 } 1092 1093 // TODO: This algorithm will need a lot of tweaking after more people have used 1094 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 1095 // what comes before the finger. 1096 private int putOffsetInRange(int o) { 1097 int offset = o; 1098 Editable text = getText(); 1099 int length = text.length(); 1100 // Remove whitespace from end to find "real end" 1101 int realLength = length; 1102 for (int i = length - 1; i >= 0; i--) { 1103 if (text.charAt(i) == ' ') { 1104 realLength--; 1105 } else { 1106 break; 1107 } 1108 } 1109 1110 // If the offset is beyond or at the end of the text, 1111 // leave it alone. 1112 if (offset >= realLength) { 1113 return offset; 1114 } 1115 Editable editable = getText(); 1116 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 1117 // Keep walking backward! 1118 offset--; 1119 } 1120 return offset; 1121 } 1122 1123 private int findText(Editable text, int offset) { 1124 if (text.charAt(offset) != ' ') { 1125 return offset; 1126 } 1127 return -1; 1128 } 1129 1130 private RecipientChip findChip(int offset) { 1131 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1132 // Find the chip that contains this offset. 1133 for (int i = 0; i < chips.length; i++) { 1134 RecipientChip chip = chips[i]; 1135 int start = getChipStart(chip); 1136 int end = getChipEnd(chip); 1137 if (offset >= start && offset <= end) { 1138 return chip; 1139 } 1140 } 1141 return null; 1142 } 1143 1144 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 1145 String displayText = entry.getDestination(); 1146 displayText = (String) mTokenizer.terminateToken(displayText); 1147 // Always leave a blank space at the end of a chip. 1148 int textLength = displayText.length()-1; 1149 SpannableString chipText = new SpannableString(displayText); 1150 int end = getSelectionEnd(); 1151 int start = mTokenizer.findTokenStart(getText(), end); 1152 try { 1153 RecipientChip chip = constructChipSpan(entry, start, pressed); 1154 chipText.setSpan(chip, 0, textLength, 1155 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1156 chip.setOriginalText(chipText.toString()); 1157 } catch (NullPointerException e) { 1158 Log.e(TAG, e.getMessage(), e); 1159 return null; 1160 } 1161 1162 return chipText; 1163 } 1164 1165 /** 1166 * When an item in the suggestions list has been clicked, create a chip from the 1167 * contact information of the selected item. 1168 */ 1169 @Override 1170 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1171 submitItemAtPosition(position); 1172 } 1173 1174 private void submitItemAtPosition(int position) { 1175 RecipientEntry entry = createValidatedEntry( 1176 (RecipientEntry)getAdapter().getItem(position)); 1177 if (entry == null) { 1178 return; 1179 } 1180 clearComposingText(); 1181 1182 int end = getSelectionEnd(); 1183 int start = mTokenizer.findTokenStart(getText(), end); 1184 1185 Editable editable = getText(); 1186 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1187 CharSequence chip = createChip(entry, false); 1188 if (chip != null) { 1189 editable.replace(start, end, chip); 1190 } 1191 } 1192 1193 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1194 if (item == null) { 1195 return null; 1196 } 1197 final RecipientEntry entry; 1198 // If the display name and the address are the same, or if this is a 1199 // valid contact, but the destination is invalid, then make this a fake 1200 // recipient that is editable. 1201 String destination = item.getDestination(); 1202 if (TextUtils.isEmpty(item.getDisplayName()) 1203 || TextUtils.equals(item.getDisplayName(), destination) 1204 || (mValidator != null && !mValidator.isValid(destination))) { 1205 entry = RecipientEntry.constructFakeEntry(destination); 1206 } else { 1207 entry = item; 1208 } 1209 return entry; 1210 } 1211 1212 /** Returns a collection of contact Id for each chip inside this View. */ 1213 /* package */ Collection<Long> getContactIds() { 1214 final Set<Long> result = new HashSet<Long>(); 1215 RecipientChip[] chips = getRecipients(); 1216 if (chips != null) { 1217 for (RecipientChip chip : chips) { 1218 result.add(chip.getContactId()); 1219 } 1220 } 1221 return result; 1222 } 1223 1224 private RecipientChip[] getRecipients() { 1225 return getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1226 } 1227 1228 private RecipientChip[] getSortedRecipients() { 1229 ArrayList<RecipientChip> recipientsList = new ArrayList<RecipientChip>(Arrays 1230 .asList(getRecipients())); 1231 final Spannable spannable = getSpannable(); 1232 Collections.sort(recipientsList, new Comparator<RecipientChip>() { 1233 1234 @Override 1235 public int compare(RecipientChip first, RecipientChip second) { 1236 int firstStart = spannable.getSpanStart(first); 1237 int secondStart = spannable.getSpanStart(second); 1238 if (firstStart < secondStart) { 1239 return -1; 1240 } else if (firstStart > secondStart) { 1241 return 1; 1242 } else { 1243 return 0; 1244 } 1245 } 1246 }); 1247 return recipientsList.toArray(new RecipientChip[recipientsList.size()]); 1248 } 1249 1250 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1251 /* package */ Collection<Long> getDataIds() { 1252 final Set<Long> result = new HashSet<Long>(); 1253 RecipientChip [] chips = getRecipients(); 1254 if (chips != null) { 1255 for (RecipientChip chip : chips) { 1256 result.add(chip.getDataId()); 1257 } 1258 } 1259 return result; 1260 } 1261 1262 1263 @Override 1264 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1265 return false; 1266 } 1267 1268 @Override 1269 public void onDestroyActionMode(ActionMode mode) { 1270 } 1271 1272 @Override 1273 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1274 return false; 1275 } 1276 1277 /** 1278 * No chips are selectable. 1279 */ 1280 @Override 1281 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1282 return false; 1283 } 1284 1285 /** 1286 * Create the more chip. The more chip is text that replaces any chips that 1287 * do not fit in the pre-defined available space when the 1288 * RecipientEditTextView loses focus. 1289 */ 1290 private void createMoreChip() { 1291 if (!mShouldShrink) { 1292 return; 1293 } 1294 1295 ImageSpan[] tempMore = getSpannable().getSpans(0, getText().length(), MoreImageSpan.class); 1296 if (tempMore.length > 0) { 1297 getSpannable().removeSpan(tempMore[0]); 1298 } 1299 RecipientChip[] recipients = getSortedRecipients(); 1300 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1301 mMoreChip = null; 1302 return; 1303 } 1304 Spannable spannable = getSpannable(); 1305 int numRecipients = recipients.length; 1306 int overage = numRecipients - CHIP_LIMIT; 1307 String moreText = String.format(mMoreItem.getText().toString(), overage); 1308 TextPaint morePaint = new TextPaint(getPaint()); 1309 morePaint.setTextSize(mMoreItem.getTextSize()); 1310 morePaint.setColor(mMoreItem.getCurrentTextColor()); 1311 int width = (int)morePaint.measureText(moreText) + mMoreItem.getPaddingLeft() 1312 + mMoreItem.getPaddingRight(); 1313 int height = getLineHeight(); 1314 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1315 Canvas canvas = new Canvas(drawable); 1316 canvas.drawText(moreText, 0, moreText.length(), 0, height - getLayout().getLineDescent(0), 1317 morePaint); 1318 1319 Drawable result = new BitmapDrawable(getResources(), drawable); 1320 result.setBounds(0, 0, width, height); 1321 MoreImageSpan moreSpan = new MoreImageSpan(result); 1322 // Remove the overage chips. 1323 if (recipients == null || recipients.length == 0) { 1324 Log.w(TAG, 1325 "We have recipients. Tt should not be possible to have zero RecipientChips."); 1326 mMoreChip = null; 1327 return; 1328 } 1329 mRemovedSpans = new ArrayList<RecipientChip>(); 1330 int totalReplaceStart = 0; 1331 int totalReplaceEnd = 0; 1332 Editable text = getText(); 1333 for (int i = numRecipients - overage; i < recipients.length; i++) { 1334 mRemovedSpans.add(recipients[i]); 1335 if (i == numRecipients - overage) { 1336 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1337 } 1338 if (i == recipients.length - 1) { 1339 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1340 } 1341 if (mTemporaryRecipients == null || !mTemporaryRecipients.contains(recipients[i])) { 1342 int spanStart = spannable.getSpanStart(recipients[i]); 1343 int spanEnd = spannable.getSpanEnd(recipients[i]); 1344 recipients[i].setOriginalText(text.toString().substring(spanStart, spanEnd)); 1345 } 1346 spannable.removeSpan(recipients[i]); 1347 } 1348 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1349 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1350 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1351 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1352 text.replace(start, end, chipText); 1353 mMoreChip = moreSpan; 1354 } 1355 1356 /** 1357 * Replace the more chip, if it exists, with all of the recipient chips it had 1358 * replaced when the RecipientEditTextView gains focus. 1359 */ 1360 private void removeMoreChip() { 1361 if (mMoreChip != null) { 1362 Spannable span = getSpannable(); 1363 span.removeSpan(mMoreChip); 1364 mMoreChip = null; 1365 // Re-add the spans that were removed. 1366 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1367 // Recreate each removed span. 1368 RecipientChip[] recipients = getRecipients(); 1369 // Start the search for tokens after the last currently visible 1370 // chip. 1371 int end = span.getSpanEnd(recipients[recipients.length - 1]); 1372 Editable editable = getText(); 1373 for (RecipientChip chip : mRemovedSpans) { 1374 int chipStart; 1375 int chipEnd; 1376 String token; 1377 // Need to find the location of the chip, again. 1378 token = (String) chip.getOriginalText(); 1379 // As we find the matching recipient for the remove spans, 1380 // reduce the size of the string we need to search. 1381 // That way, if there are duplicates, we always find the correct 1382 // recipient. 1383 chipStart = editable.toString().indexOf(token, end); 1384 // -1 for the space! 1385 end = chipEnd = Math.min(editable.length(), chipStart + token.length()); 1386 // Only set the span if we found a matching token. 1387 if (chipStart != -1) { 1388 editable.setSpan(chip, chipStart, chipEnd, 1389 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1390 } 1391 } 1392 mRemovedSpans.clear(); 1393 } 1394 } 1395 } 1396 1397 /** 1398 * Show specified chip as selected. If the RecipientChip is just an email address, 1399 * selecting the chip will take the contents of the chip and place it at 1400 * the end of the RecipientEditTextView for inline editing. If the 1401 * RecipientChip is a complete contact, then selecting the chip 1402 * will change the background color of the chip, show the delete icon, 1403 * and a popup window with the address in use highlighted and any other 1404 * alternate addresses for the contact. 1405 * @param currentChip Chip to select. 1406 * @return A RecipientChip in the selected state or null if the chip 1407 * just contained an email address. 1408 */ 1409 public RecipientChip selectChip(RecipientChip currentChip) { 1410 if (currentChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1411 CharSequence text = currentChip.getValue(); 1412 Editable editable = getText(); 1413 removeChip(currentChip); 1414 editable.append(text); 1415 setCursorVisible(true); 1416 setSelection(editable.length()); 1417 return new RecipientChip(null, RecipientEntry.constructFakeEntry((String) text), -1); 1418 } else if (currentChip.getContactId() == RecipientEntry.GENERATED_CONTACT) { 1419 int start = getChipStart(currentChip); 1420 int end = getChipEnd(currentChip); 1421 getSpannable().removeSpan(currentChip); 1422 RecipientChip newChip; 1423 try { 1424 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1425 } catch (NullPointerException e) { 1426 Log.e(TAG, e.getMessage(), e); 1427 return null; 1428 } 1429 Editable editable = getText(); 1430 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1431 if (start == -1 || end == -1) { 1432 Log.d(TAG, "The chip being selected no longer exists but should."); 1433 } else { 1434 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1435 } 1436 newChip.setSelected(true); 1437 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1438 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1439 } 1440 showAddress(newChip, mAddressPopup, getWidth(), getContext()); 1441 setCursorVisible(false); 1442 return newChip; 1443 } else { 1444 int start = getChipStart(currentChip); 1445 int end = getChipEnd(currentChip); 1446 getSpannable().removeSpan(currentChip); 1447 RecipientChip newChip; 1448 try { 1449 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1450 } catch (NullPointerException e) { 1451 Log.e(TAG, e.getMessage(), e); 1452 return null; 1453 } 1454 Editable editable = getText(); 1455 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1456 if (start == -1 || end == -1) { 1457 Log.d(TAG, "The chip being selected no longer exists but should."); 1458 } else { 1459 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1460 } 1461 newChip.setSelected(true); 1462 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1463 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1464 } 1465 showAlternates(newChip, mAlternatesPopup, getWidth(), getContext()); 1466 setCursorVisible(false); 1467 return newChip; 1468 } 1469 } 1470 1471 1472 private void showAddress(final RecipientChip currentChip, final ListPopupWindow popup, 1473 int width, Context context) { 1474 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1475 int bottom = calculateOffsetFromBottom(line); 1476 // Align the alternates popup with the left side of the View, 1477 // regardless of the position of the chip tapped. 1478 popup.setWidth(width); 1479 popup.setAnchorView(this); 1480 popup.setVerticalOffset(bottom); 1481 popup.setAdapter(createSingleAddressAdapter(currentChip)); 1482 popup.setOnItemClickListener(new OnItemClickListener() { 1483 @Override 1484 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1485 unselectChip(currentChip); 1486 popup.dismiss(); 1487 } 1488 }); 1489 popup.show(); 1490 ListView listView = popup.getListView(); 1491 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1492 listView.setItemChecked(0, true); 1493 } 1494 1495 /** 1496 * Remove selection from this chip. Unselecting a RecipientChip will render 1497 * the chip without a delete icon and with an unfocused background. This 1498 * is called when the RecipientChip no longer has focus. 1499 */ 1500 public void unselectChip(RecipientChip chip) { 1501 int start = getChipStart(chip); 1502 int end = getChipEnd(chip); 1503 Editable editable = getText(); 1504 mSelectedChip = null; 1505 if (start == -1 || end == -1) { 1506 Log.e(TAG, "The chip being unselected no longer exists."); 1507 } else { 1508 getSpannable().removeSpan(chip); 1509 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1510 editable.removeSpan(chip); 1511 try { 1512 editable.setSpan(constructChipSpan(chip.getEntry(), start, false), start, end, 1513 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1514 } catch (NullPointerException e) { 1515 Log.e(TAG, e.getMessage(), e); 1516 } 1517 } 1518 setCursorVisible(true); 1519 setSelection(editable.length()); 1520 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1521 mAlternatesPopup.dismiss(); 1522 } 1523 } 1524 1525 1526 /** 1527 * Return whether this chip contains the position passed in. 1528 */ 1529 public boolean matchesChip(RecipientChip chip, int offset) { 1530 int start = getChipStart(chip); 1531 int end = getChipEnd(chip); 1532 if (start == -1 || end == -1) { 1533 return false; 1534 } 1535 return (offset >= start && offset <= end); 1536 } 1537 1538 1539 /** 1540 * Return whether a touch event was inside the delete target of 1541 * a selected chip. It is in the delete target if: 1542 * 1) the x and y points of the event are within the 1543 * delete assset. 1544 * 2) the point tapped would have caused a cursor to appear 1545 * right after the selected chip. 1546 * @return boolean 1547 */ 1548 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1549 // Figure out the bounds of this chip and whether or not 1550 // the user clicked in the X portion. 1551 return chip.isSelected() && offset == getChipEnd(chip); 1552 } 1553 1554 /** 1555 * Remove the chip and any text associated with it from the RecipientEditTextView. 1556 */ 1557 private void removeChip(RecipientChip chip) { 1558 Spannable spannable = getSpannable(); 1559 int spanStart = spannable.getSpanStart(chip); 1560 int spanEnd = spannable.getSpanEnd(chip); 1561 Editable text = getText(); 1562 int toDelete = spanEnd; 1563 boolean wasSelected = chip == mSelectedChip; 1564 // Clear that there is a selected chip before updating any text. 1565 if (wasSelected) { 1566 mSelectedChip = null; 1567 } 1568 // Always remove trailing spaces when removing a chip. 1569 while (toDelete >= 0 && toDelete < text.length() && text.charAt(toDelete) == ' ') { 1570 toDelete++; 1571 } 1572 spannable.removeSpan(chip); 1573 text.delete(spanStart, toDelete); 1574 if (wasSelected) { 1575 clearSelectedChip(); 1576 } 1577 } 1578 1579 /** 1580 * Replace this currently selected chip with a new chip 1581 * that uses the contact data provided. 1582 */ 1583 public void replaceChip(RecipientChip chip, RecipientEntry entry) { 1584 boolean wasSelected = chip == mSelectedChip; 1585 if (wasSelected) { 1586 mSelectedChip = null; 1587 } 1588 int start = getChipStart(chip); 1589 int end = getChipEnd(chip); 1590 getSpannable().removeSpan(chip); 1591 Editable editable = getText(); 1592 CharSequence chipText = createChip(entry, false); 1593 if (start == -1 || end == -1) { 1594 Log.e(TAG, "The chip to replace does not exist but should."); 1595 editable.insert(0, chipText); 1596 } else { 1597 // There may be a space to replace with this chip's new associated 1598 // space. Check for it. 1599 int toReplace = end; 1600 while (toReplace >= 0 && toReplace < editable.length() 1601 && editable.charAt(toReplace) == ' ') { 1602 toReplace++; 1603 } 1604 editable.replace(start, toReplace, chipText); 1605 } 1606 setCursorVisible(true); 1607 if (wasSelected) { 1608 clearSelectedChip(); 1609 } 1610 } 1611 1612 /** 1613 * Handle click events for a chip. When a selected chip receives a click 1614 * event, see if that event was in the delete icon. If so, delete it. 1615 * Otherwise, unselect the chip. 1616 */ 1617 public void onClick(RecipientChip chip, int offset, float x, float y) { 1618 if (chip.isSelected()) { 1619 if (isInDelete(chip, offset, x, y)) { 1620 removeChip(chip); 1621 } else { 1622 clearSelectedChip(); 1623 } 1624 } 1625 } 1626 1627 private boolean chipsPending() { 1628 return mPendingChipsCount > 0 || (mRemovedSpans != null && mRemovedSpans.size() > 0); 1629 } 1630 1631 @Override 1632 public void removeTextChangedListener(TextWatcher watcher) { 1633 mTextWatcher = null; 1634 super.removeTextChangedListener(watcher); 1635 } 1636 1637 private class RecipientTextWatcher implements TextWatcher { 1638 @Override 1639 public void afterTextChanged(Editable s) { 1640 // If the text has been set to null or empty, make sure we remove 1641 // all the spans we applied. 1642 if (TextUtils.isEmpty(s)) { 1643 // Remove all the chips spans. 1644 Spannable spannable = getSpannable(); 1645 RecipientChip[] chips = spannable.getSpans(0, getText().length(), 1646 RecipientChip.class); 1647 for (RecipientChip chip : chips) { 1648 spannable.removeSpan(chip); 1649 } 1650 if (mMoreChip != null) { 1651 spannable.removeSpan(mMoreChip); 1652 } 1653 return; 1654 } 1655 // Get whether there are any recipients pending addition to the 1656 // view. If there are, don't do anything in the text watcher. 1657 if (chipsPending()) { 1658 return; 1659 } 1660 if (mSelectedChip != null) { 1661 setCursorVisible(true); 1662 setSelection(getText().length()); 1663 clearSelectedChip(); 1664 } 1665 int length = s.length(); 1666 // Make sure there is content there to parse and that it is 1667 // not just the commit character. 1668 if (length > 1) { 1669 char last; 1670 int end = getSelectionEnd() == 0 ? 0 : getSelectionEnd() - 1; 1671 int len = length() - 1; 1672 if (end != len) { 1673 last = s.charAt(end); 1674 } else { 1675 last = s.charAt(len); 1676 } 1677 if (last == COMMIT_CHAR_SEMICOLON || last == COMMIT_CHAR_COMMA) { 1678 commitByCharacter(); 1679 } else if (last == COMMIT_CHAR_SPACE) { 1680 // Check if this is a valid email address. If it is, 1681 // commit it. 1682 String text = getText().toString(); 1683 int tokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 1684 String sub = text.substring(tokenStart, mTokenizer.findTokenEnd(text, 1685 tokenStart)); 1686 if (mValidator != null && mValidator.isValid(sub)) { 1687 commitByCharacter(); 1688 } 1689 } 1690 } 1691 } 1692 1693 @Override 1694 public void onTextChanged(CharSequence s, int start, int before, int count) { 1695 // Do nothing. 1696 } 1697 1698 @Override 1699 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 1700 } 1701 } 1702 1703 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 1704 private RecipientChip createFreeChip(RecipientEntry entry) { 1705 String displayText = entry.getDestination(); 1706 if (displayText.indexOf(",") == -1) { 1707 displayText = (String) mTokenizer.terminateToken(displayText); 1708 } 1709 try { 1710 return constructChipSpan(entry, -1, false); 1711 } catch (NullPointerException e) { 1712 Log.e(TAG, e.getMessage(), e); 1713 return null; 1714 } 1715 } 1716 1717 @Override 1718 protected Void doInBackground(Void... params) { 1719 if (mIndividualReplacements != null) { 1720 mIndividualReplacements.cancel(true); 1721 } 1722 // For each chip in the list, look up the matching contact. 1723 // If there is a match, replace that chip with the matching 1724 // chip. 1725 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 1726 RecipientChip[] existingChips = getSortedRecipients(); 1727 for (int i = 0; i < existingChips.length; i++) { 1728 originalRecipients.add(existingChips[i]); 1729 } 1730 if (mRemovedSpans != null) { 1731 originalRecipients.addAll(mRemovedSpans); 1732 } 1733 String[] addresses = new String[originalRecipients.size()]; 1734 for (int i = 0; i < originalRecipients.size(); i++) { 1735 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1736 } 1737 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1738 .getMatchingRecipients(getContext(), addresses); 1739 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 1740 for (final RecipientChip temp : originalRecipients) { 1741 RecipientEntry entry = null; 1742 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1743 && getSpannable().getSpanStart(temp) != -1) { 1744 // Replace this. 1745 entry = createValidatedEntry(entries.get(tokenizeAddress(temp.getEntry() 1746 .getDestination()))); 1747 } 1748 if (entry != null) { 1749 replacements.add(createFreeChip(entry)); 1750 } else { 1751 replacements.add(temp); 1752 } 1753 } 1754 if (replacements != null && replacements.size() > 0) { 1755 mHandler.post(new Runnable() { 1756 @Override 1757 public void run() { 1758 SpannableStringBuilder text = new SpannableStringBuilder(getText() 1759 .toString()); 1760 Editable oldText = getText(); 1761 int start, end; 1762 int i = 0; 1763 for (RecipientChip chip : originalRecipients) { 1764 start = oldText.getSpanStart(chip); 1765 if (start != -1) { 1766 end = oldText.getSpanEnd(chip); 1767 text.removeSpan(chip); 1768 // Leave a spot for the space! 1769 RecipientChip replacement = replacements.get(i); 1770 text.setSpan(replacement, start, end, 1771 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1772 replacement.setOriginalText(text.toString().substring(start, end)); 1773 } 1774 i++; 1775 } 1776 Editable editable = getText(); 1777 editable.clear(); 1778 editable.insert(0, text); 1779 originalRecipients.clear(); 1780 } 1781 }); 1782 } 1783 return null; 1784 } 1785 } 1786 1787 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 1788 @SuppressWarnings("unchecked") 1789 @Override 1790 protected Void doInBackground(Object... params) { 1791 // For each chip in the list, look up the matching contact. 1792 // If there is a match, replace that chip with the matching 1793 // chip. 1794 final ArrayList<RecipientChip> originalRecipients = 1795 (ArrayList<RecipientChip>) params[0]; 1796 String[] addresses = new String[originalRecipients.size()]; 1797 for (int i = 0; i < originalRecipients.size(); i++) { 1798 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1799 } 1800 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1801 .getMatchingRecipients(getContext(), addresses); 1802 for (final RecipientChip temp : originalRecipients) { 1803 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1804 && getSpannable().getSpanStart(temp) != -1) { 1805 // Replace this. 1806 final RecipientEntry entry = createValidatedEntry(entries 1807 .get(tokenizeAddress(temp.getEntry().getDestination()))); 1808 if (entry != null) { 1809 mHandler.post(new Runnable() { 1810 @Override 1811 public void run() { 1812 replaceChip(temp, entry); 1813 } 1814 }); 1815 } 1816 } 1817 } 1818 return null; 1819 } 1820 } 1821 1822 1823 /** 1824 * MoreImageSpan is a simple class created for tracking the existence of a 1825 * more chip across activity restarts/ 1826 */ 1827 private class MoreImageSpan extends ImageSpan { 1828 public MoreImageSpan(Drawable b) { 1829 super(b); 1830 } 1831 } 1832 1833 @Override 1834 public boolean onDown(MotionEvent e) { 1835 return false; 1836 } 1837 1838 @Override 1839 public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { 1840 // Do nothing. 1841 return false; 1842 } 1843 1844 @Override 1845 public void onLongPress(MotionEvent event) { 1846 if (mSelectedChip != null) { 1847 return; 1848 } 1849 float x = event.getX(); 1850 float y = event.getY(); 1851 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 1852 RecipientChip currentChip = findChip(offset); 1853 if (currentChip != null) { 1854 // Copy the selected chip email address. 1855 showCopyDialog(currentChip.getEntry().getDestination()); 1856 } 1857 } 1858 1859 private void showCopyDialog(final String address) { 1860 mCopyAddress = address; 1861 mCopyDialog.setTitle(address); 1862 mCopyDialog.setContentView(mCopyViewRes); 1863 mCopyDialog.setCancelable(true); 1864 mCopyDialog.setCanceledOnTouchOutside(true); 1865 mCopyDialog.findViewById(android.R.id.button1).setOnClickListener(this); 1866 mCopyDialog.setOnDismissListener(this); 1867 mCopyDialog.show(); 1868 } 1869 1870 @Override 1871 public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) { 1872 // Do nothing. 1873 return false; 1874 } 1875 1876 @Override 1877 public void onShowPress(MotionEvent e) { 1878 // Do nothing. 1879 } 1880 1881 @Override 1882 public boolean onSingleTapUp(MotionEvent e) { 1883 // Do nothing. 1884 return false; 1885 } 1886 1887 @Override 1888 public void onDismiss(DialogInterface dialog) { 1889 mCopyAddress = null; 1890 } 1891 1892 @Override 1893 public void onClick(View v) { 1894 // Copy this to the clipboard. 1895 ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService( 1896 Context.CLIPBOARD_SERVICE); 1897 clipboard.setPrimaryClip(ClipData.newPlainText("", mCopyAddress)); 1898 mCopyDialog.dismiss(); 1899 } 1900} 1901