RecipientEditTextView.java revision 1d37d9775446acd8e4e6bb0637565e88b5360096
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 mAlternatesListener = new OnItemClickListener() { 203 @Override 204 public void onItemClick(AdapterView<?> adapterView,View view, int position, 205 long rowId) { 206 mAlternatesPopup.setOnItemClickListener(null); 207 replaceChip(mSelectedChip, ((RecipientAlternatesAdapter) adapterView.getAdapter()) 208 .getRecipientEntry(position)); 209 Message delayed = Message.obtain(mHandler, DISMISS); 210 delayed.obj = mAlternatesPopup; 211 mHandler.sendMessageDelayed(delayed, DISMISS_DELAY); 212 clearComposingText(); 213 } 214 }; 215 setInputType(getInputType() | InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS); 216 setOnItemClickListener(this); 217 setCustomSelectionActionModeCallback(this); 218 mHandler = new Handler() { 219 @Override 220 public void handleMessage(Message msg) { 221 if (msg.what == DISMISS) { 222 ((ListPopupWindow) msg.obj).dismiss(); 223 return; 224 } 225 super.handleMessage(msg); 226 } 227 }; 228 mTextWatcher = new RecipientTextWatcher(); 229 addTextChangedListener(mTextWatcher); 230 mGestureDetector = new GestureDetector(context, this); 231 } 232 233 @Override 234 public <T extends ListAdapter & Filterable> void setAdapter(T adapter) { 235 super.setAdapter(adapter); 236 if (adapter == null) { 237 return; 238 } 239 } 240 241 @Override 242 public void onSelectionChanged(int start, int end) { 243 // When selection changes, see if it is inside the chips area. 244 // If so, move the cursor back after the chips again. 245 Spannable span = getSpannable(); 246 int textLength = getText().length(); 247 RecipientChip[] chips = span.getSpans(start, textLength, RecipientChip.class); 248 if (chips != null && chips.length > 0) { 249 if (chips != null && chips.length > 0) { 250 // Grab the last chip and set the cursor to after it. 251 setSelection(Math.min(span.getSpanEnd(chips[chips.length - 1]) + 1, textLength)); 252 } 253 } 254 super.onSelectionChanged(start, end); 255 } 256 257 /** 258 * Convenience method: Append the specified text slice to the TextView's 259 * display buffer, upgrading it to BufferType.EDITABLE if it was 260 * not already editable. Commas are excluded as they are added automatically 261 * by the view. 262 */ 263 @Override 264 public void append(CharSequence text, int start, int end) { 265 // We don't care about watching text changes while appending. 266 if (mTextWatcher != null) { 267 removeTextChangedListener(mTextWatcher); 268 } 269 super.append(text, start, end); 270 if (!TextUtils.isEmpty(text) && TextUtils.getTrimmedLength(text) > 0) { 271 final String displayString = (String) text; 272 int seperatorPos = displayString.indexOf(COMMIT_CHAR_COMMA); 273 if (seperatorPos != 0 && !TextUtils.isEmpty(displayString) 274 && TextUtils.getTrimmedLength(displayString) > 0) { 275 mPendingChipsCount++; 276 mPendingChips.add((String)text); 277 } 278 } 279 // Put a message on the queue to make sure we ALWAYS handle pending chips. 280 if (mPendingChipsCount > 0) { 281 postHandlePendingChips(); 282 } 283 mHandler.post(mAddTextWatcher); 284 } 285 286 @Override 287 public void onFocusChanged(boolean hasFocus, int direction, Rect previous) { 288 super.onFocusChanged(hasFocus, direction, previous); 289 if (!hasFocus) { 290 shrink(); 291 } else { 292 expand(); 293 scrollLineIntoView(getLineCount()); 294 } 295 } 296 297 @Override 298 public void performValidation() { 299 // Do nothing. Chips handles its own validation. 300 } 301 302 private void shrink() { 303 if (mSelectedChip != null) { 304 clearSelectedChip(); 305 } else { 306 // Reset any pending chips as they would have been handled 307 // when the field lost focus. 308 if (mPendingChipsCount > 0) { 309 postHandlePendingChips(); 310 } else { 311 Editable editable = getText(); 312 int end = getSelectionEnd(); 313 int start = mTokenizer.findTokenStart(editable, end); 314 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 315 if ((chips == null || chips.length == 0)) { 316 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 317 // In the middle of chip; treat this as an edit 318 // and commit the whole token. 319 if (whatEnd != getSelectionEnd()) { 320 handleEdit(start, whatEnd); 321 } else { 322 commitChip(start, end, editable); 323 } 324 } 325 } 326 mHandler.post(mAddTextWatcher); 327 } 328 createMoreChip(); 329 } 330 331 private void expand() { 332 removeMoreChip(); 333 setCursorVisible(true); 334 Editable text = getText(); 335 setSelection(text != null && text.length() > 0 ? text.length() : 0); 336 // If there are any temporary chips, try replacing them now that the user 337 // has expanded the field. 338 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0) { 339 new RecipientReplacementTask().execute(); 340 mTemporaryRecipients = null; 341 } 342 } 343 344 private CharSequence ellipsizeText(CharSequence text, TextPaint paint, float maxWidth) { 345 paint.setTextSize(mChipFontSize); 346 if (maxWidth <= 0 && Log.isLoggable(TAG, Log.DEBUG)) { 347 Log.d(TAG, "Max width is negative: " + maxWidth); 348 } 349 return TextUtils.ellipsize(text, paint, maxWidth, 350 TextUtils.TruncateAt.END); 351 } 352 353 private Bitmap createSelectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 354 // Ellipsize the text so that it takes AT MOST the entire width of the 355 // autocomplete text entry area. Make sure to leave space for padding 356 // on the sides. 357 int height = (int) mChipHeight; 358 int deleteWidth = height; 359 CharSequence ellipsizedText = ellipsizeText(contact.getDisplayName(), paint, 360 calculateAvailableWidth(true) - deleteWidth); 361 362 // Make sure there is a minimum chip width so the user can ALWAYS 363 // tap a chip without difficulty. 364 int width = Math.max(deleteWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 365 ellipsizedText.length())) 366 + (mChipPadding * 2) + deleteWidth); 367 368 // Create the background of the chip. 369 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 370 Canvas canvas = new Canvas(tmpBitmap); 371 if (mChipBackgroundPressed != null) { 372 mChipBackgroundPressed.setBounds(0, 0, width, height); 373 mChipBackgroundPressed.draw(canvas); 374 paint.setColor(sSelectedTextColor); 375 // Vertically center the text in the chip. 376 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 377 getTextYOffset((String) ellipsizedText, paint, height), paint); 378 // Make the delete a square. 379 mChipDelete.setBounds(width - deleteWidth, 0, width, height); 380 mChipDelete.draw(canvas); 381 } else { 382 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 383 } 384 return tmpBitmap; 385 } 386 387 388 /** 389 * Get the background drawable for a RecipientChip. 390 */ 391 public Drawable getChipBackground(RecipientEntry contact) { 392 return (mValidator != null && mValidator.isValid(contact.getDestination())) ? 393 mChipBackground : mInvalidChipBackground; 394 } 395 396 private Bitmap createUnselectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 397 // Ellipsize the text so that it takes AT MOST the entire width of the 398 // autocomplete text entry area. Make sure to leave space for padding 399 // on the sides. 400 int height = (int) mChipHeight; 401 int iconWidth = height; 402 String displayText = 403 !TextUtils.isEmpty(contact.getDisplayName()) ? contact.getDisplayName() : 404 !TextUtils.isEmpty(contact.getDestination()) ? contact.getDestination() : ""; 405 CharSequence ellipsizedText = ellipsizeText(displayText, paint, 406 calculateAvailableWidth(false) - iconWidth); 407 // Make sure there is a minimum chip width so the user can ALWAYS 408 // tap a chip without difficulty. 409 int width = Math.max(iconWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 410 ellipsizedText.length())) 411 + (mChipPadding * 2) + iconWidth); 412 413 // Create the background of the chip. 414 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 415 Canvas canvas = new Canvas(tmpBitmap); 416 Drawable background = getChipBackground(contact); 417 if (background != null) { 418 background.setBounds(0, 0, width, height); 419 background.draw(canvas); 420 421 // Don't draw photos for recipients that have been typed in. 422 if (contact.getContactId() != RecipientEntry.INVALID_CONTACT) { 423 byte[] photoBytes = contact.getPhotoBytes(); 424 // There may not be a photo yet if anything but the first contact address 425 // was selected. 426 if (photoBytes == null && contact.getPhotoThumbnailUri() != null) { 427 // TODO: cache this in the recipient entry? 428 ((BaseRecipientAdapter) getAdapter()).fetchPhoto(contact, contact 429 .getPhotoThumbnailUri()); 430 photoBytes = contact.getPhotoBytes(); 431 } 432 433 Bitmap photo; 434 if (photoBytes != null) { 435 photo = BitmapFactory.decodeByteArray(photoBytes, 0, photoBytes.length); 436 } else { 437 // TODO: can the scaled down default photo be cached? 438 photo = mDefaultContactPhoto; 439 } 440 // Draw the photo on the left side. 441 Matrix matrix = new Matrix(); 442 RectF src = new RectF(0, 0, photo.getWidth(), photo.getHeight()); 443 RectF dst = new RectF(width - iconWidth, 0, width, height); 444 matrix.setRectToRect(src, dst, Matrix.ScaleToFit.CENTER); 445 canvas.drawBitmap(photo, matrix, paint); 446 } else { 447 // Don't leave any space for the icon. It isn't being drawn. 448 iconWidth = 0; 449 } 450 451 // Vertically center the text in the chip. 452 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 453 getTextYOffset((String)ellipsizedText, paint, height), paint); 454 } else { 455 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 456 } 457 return tmpBitmap; 458 } 459 460 private float getTextYOffset(String text, TextPaint paint, int height) { 461 Rect bounds = new Rect(); 462 paint.getTextBounds((String)text, 0, text.length(), bounds); 463 int textHeight = bounds.bottom - bounds.top - (int)paint.descent(); 464 return height - ((height - textHeight) / 2); 465 } 466 467 public RecipientChip constructChipSpan(RecipientEntry contact, int offset, boolean pressed) 468 throws NullPointerException { 469 if (mChipBackground == null) { 470 throw new NullPointerException( 471 "Unable to render any chips as setChipDimensions was not called."); 472 } 473 Layout layout = getLayout(); 474 475 TextPaint paint = getPaint(); 476 float defaultSize = paint.getTextSize(); 477 int defaultColor = paint.getColor(); 478 479 Bitmap tmpBitmap; 480 if (pressed) { 481 tmpBitmap = createSelectedChip(contact, paint, layout); 482 483 } else { 484 tmpBitmap = createUnselectedChip(contact, paint, layout); 485 } 486 487 // Pass the full text, un-ellipsized, to the chip. 488 Drawable result = new BitmapDrawable(getResources(), tmpBitmap); 489 result.setBounds(0, 0, tmpBitmap.getWidth(), tmpBitmap.getHeight()); 490 RecipientChip recipientChip = new RecipientChip(result, contact, offset); 491 // Return text to the original size. 492 paint.setTextSize(defaultSize); 493 paint.setColor(defaultColor); 494 return recipientChip; 495 } 496 497 /** 498 * Calculate the bottom of the line the chip will be located on using: 499 * 1) which line the chip appears on 500 * 2) the height of a chip 501 * 3) padding built into the edit text view 502 */ 503 private int calculateOffsetFromBottom(int line) { 504 // Line offsets start at zero. 505 int actualLine = getLineCount() - (line + 1); 506 return -((actualLine * ((int) mChipHeight) + getPaddingBottom()) + getPaddingTop()) 507 + getDropDownVerticalOffset(); 508 } 509 510 /** 511 * Get the max amount of space a chip can take up. The formula takes into 512 * account the width of the EditTextView, any view padding, and padding 513 * that will be added to the chip. 514 */ 515 private float calculateAvailableWidth(boolean pressed) { 516 return getWidth() - getPaddingLeft() - getPaddingRight() - (mChipPadding * 2); 517 } 518 519 /** 520 * Set all chip dimensions and resources. This has to be done from the 521 * application as this is a static library. 522 * @param chipBackground 523 * @param chipBackgroundPressed 524 * @param invalidChip 525 * @param chipDelete 526 * @param defaultContact 527 * @param moreResource 528 * @param alternatesLayout 529 * @param chipHeight 530 * @param padding Padding around the text in a chip 531 * @param chipFontSize 532 * @param copyViewRes 533 */ 534 public void setChipDimensions(Drawable chipBackground, Drawable chipBackgroundPressed, 535 Drawable invalidChip, Drawable chipDelete, Bitmap defaultContact, int moreResource, 536 int alternatesLayout, float chipHeight, float padding, 537 float chipFontSize, int copyViewRes) { 538 mChipBackground = chipBackground; 539 mChipBackgroundPressed = chipBackgroundPressed; 540 mChipDelete = chipDelete; 541 mChipPadding = (int) padding; 542 mAlternatesLayout = alternatesLayout; 543 mDefaultContactPhoto = defaultContact; 544 mMoreItem = (TextView) LayoutInflater.from(getContext()).inflate(moreResource, null); 545 mChipHeight = chipHeight; 546 mChipFontSize = chipFontSize; 547 mInvalidChipBackground = invalidChip; 548 mCopyViewRes = copyViewRes; 549 } 550 551 /** 552 * Set whether to shrink the recipients field such that at most 553 * one line of recipients chips are shown when the field loses 554 * focus. By default, the number of displayed recipients will be 555 * limited and a "more" chip will be shown when focus is lost. 556 * @param shrink 557 */ 558 public void setOnFocusListShrinkRecipients(boolean shrink) { 559 mShouldShrink = shrink; 560 } 561 562 @Override 563 public void onSizeChanged(int width, int height, int oldw, int oldh) { 564 super.onSizeChanged(width, height, oldw, oldh); 565 if (width != 0 && height != 0 && mPendingChipsCount > 0) { 566 postHandlePendingChips(); 567 } 568 // Try to find the scroll view parent, if it exists. 569 if (mScrollView == null && !mTried) { 570 ViewParent parent = getParent(); 571 while (parent != null && !(parent instanceof ScrollView)) { 572 parent = parent.getParent(); 573 } 574 if (parent != null) { 575 mScrollView = (ScrollView) parent; 576 } 577 mTried = true; 578 } 579 } 580 581 private void postHandlePendingChips() { 582 mHandler.removeCallbacks(mHandlePendingChips); 583 mHandler.post(mHandlePendingChips); 584 } 585 586 private void handlePendingChips() { 587 if (mPendingChipsCount <= 0) { 588 return; 589 } 590 if (getWidth() <= 0) { 591 // The widget has not been sized yet. 592 // This will be called as a result of onSizeChanged 593 // at a later point. 594 return; 595 } 596 synchronized (mPendingChips) { 597 mTemporaryRecipients = new ArrayList<RecipientChip>(mPendingChipsCount); 598 Editable editable = getText(); 599 // Tokenize! 600 for (int i = 0; i < mPendingChips.size(); i++) { 601 String current = mPendingChips.get(i); 602 int tokenStart = editable.toString().indexOf(current); 603 int tokenEnd = tokenStart + current.length(); 604 if (tokenStart >= 0) { 605 // When we have a valid token, include it with the token 606 // to the left. 607 if (tokenEnd < editable.length() - 2 608 && editable.charAt(tokenEnd) == COMMIT_CHAR_COMMA) { 609 tokenEnd++; 610 } 611 createReplacementChip(tokenStart, tokenEnd, editable); 612 } 613 mPendingChipsCount--; 614 } 615 sanitizeSpannable(); 616 if (mTemporaryRecipients != null 617 && mTemporaryRecipients.size() <= RecipientAlternatesAdapter.MAX_LOOKUPS) { 618 if (hasFocus() || mTemporaryRecipients.size() < CHIP_LIMIT) { 619 new RecipientReplacementTask().execute(); 620 mTemporaryRecipients = null; 621 } else { 622 // Create the "more" chip 623 mIndividualReplacements = new IndividualReplacementTask(); 624 mIndividualReplacements.execute(new ArrayList<RecipientChip>( 625 mTemporaryRecipients.subList(0, CHIP_LIMIT))); 626 627 createMoreChip(); 628 } 629 } else { 630 // There are too many recipients to look up, so just fall back 631 // to 632 // showing addresses for all of them. 633 mTemporaryRecipients = null; 634 createMoreChip(); 635 } 636 mPendingChipsCount = 0; 637 mPendingChips.clear(); 638 } 639 } 640 641 /** 642 * Remove any characters after the last valid chip. 643 */ 644 private void sanitizeSpannable() { 645 // Find the last chip; eliminate any commit characters after it. 646 RecipientChip[] chips = getRecipients(); 647 if (chips != null && chips.length > 0) { 648 int end; 649 ImageSpan lastSpan; 650 if (mMoreChip != null) { 651 lastSpan = mMoreChip; 652 } else { 653 lastSpan = chips[chips.length - 1]; 654 } 655 end = getSpannable().getSpanEnd(lastSpan); 656 Editable editable = getText(); 657 int length = editable.length(); 658 if (length > end) { 659 // See what characters occur after that and eliminate them. 660 if (Log.isLoggable(TAG, Log.DEBUG)) { 661 Log.d(TAG, "There were extra characters after the last tokenizable entry." 662 + editable); 663 } 664 editable.delete(end + 1, length); 665 } 666 } 667 } 668 669 /** 670 * Create a chip that represents just the email address of a recipient. At some later 671 * point, this chip will be attached to a real contact entry, if one exists. 672 */ 673 private void createReplacementChip(int tokenStart, int tokenEnd, Editable editable) { 674 if (alreadyHasChip(tokenStart, tokenEnd)) { 675 // There is already a chip present at this location. 676 // Don't recreate it. 677 return; 678 } 679 String token = editable.toString().substring(tokenStart, tokenEnd); 680 int commitCharIndex = token.trim().lastIndexOf(COMMIT_CHAR_COMMA); 681 if (commitCharIndex == token.length() - 1) { 682 token = token.substring(0, token.length() - 1); 683 } 684 RecipientEntry entry = createTokenizedEntry(token); 685 if (entry != null) { 686 String destText = entry.getDestination(); 687 destText = (String) mTokenizer.terminateToken(destText); 688 // Always leave a blank space at the end of a chip. 689 int textLength = destText.length() - 1; 690 SpannableString chipText = new SpannableString(destText); 691 int end = getSelectionEnd(); 692 int start = mTokenizer.findTokenStart(getText(), end); 693 RecipientChip chip = null; 694 try { 695 chip = constructChipSpan(entry, start, false); 696 chipText.setSpan(chip, 0, textLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 697 } catch (NullPointerException e) { 698 Log.e(TAG, e.getMessage(), e); 699 } 700 701 editable.replace(tokenStart, tokenEnd, chipText); 702 // Add this chip to the list of entries "to replace" 703 if (chip != null) { 704 chip.setOriginalText(chipText.toString()); 705 mTemporaryRecipients.add(chip); 706 } 707 } 708 } 709 710 private RecipientEntry createTokenizedEntry(String token) { 711 if (TextUtils.isEmpty(token)) { 712 return null; 713 } 714 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(token); 715 String display = null; 716 if (isValid(token) && tokens != null && tokens.length > 0) { 717 // If we can get a name from tokenizing, then generate an entry from 718 // this. 719 display = tokens[0].getName(); 720 if (!TextUtils.isEmpty(display)) { 721 return RecipientEntry.constructGeneratedEntry(display, token); 722 } else { 723 display = tokens[0].getAddress(); 724 if (!TextUtils.isEmpty(display)) { 725 return RecipientEntry.constructFakeEntry(display); 726 } 727 } 728 } 729 // Unable to validate the token or to create a valid token from it. 730 // Just create a chip the user can edit. 731 if (mValidator != null && !mValidator.isValid(token)) { 732 // Try fixing up the entry using the validator. 733 token = mValidator.fixText(token).toString(); 734 if (!TextUtils.isEmpty(token)) { 735 // protect against the case of a validator with a null domain, 736 // which doesn't add a domain to the token 737 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(token); 738 if (tokenized.length > 0) { 739 token = tokenized[0].getAddress(); 740 } 741 } 742 } 743 // Otherwise, fallback to just creating an editable email address chip. 744 return RecipientEntry.constructFakeEntry(token); 745 } 746 747 private boolean isValid(String text) { 748 return mValidator == null ? true : mValidator.isValid(text); 749 } 750 751 private String tokenizeAddress(String destination) { 752 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(destination); 753 if (tokens != null && tokens.length > 0) { 754 return tokens[0].getAddress(); 755 } 756 return destination; 757 } 758 759 @Override 760 public void setTokenizer(Tokenizer tokenizer) { 761 mTokenizer = tokenizer; 762 super.setTokenizer(mTokenizer); 763 } 764 765 @Override 766 public void setValidator(Validator validator) { 767 mValidator = validator; 768 super.setValidator(validator); 769 } 770 771 /** 772 * We cannot use the default mechanism for replaceText. Instead, 773 * we override onItemClickListener so we can get all the associated 774 * contact information including display text, address, and id. 775 */ 776 @Override 777 protected void replaceText(CharSequence text) { 778 return; 779 } 780 781 /** 782 * Dismiss any selected chips when the back key is pressed. 783 */ 784 @Override 785 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 786 if (keyCode == KeyEvent.KEYCODE_BACK) { 787 clearSelectedChip(); 788 } 789 return super.onKeyPreIme(keyCode, event); 790 } 791 792 /** 793 * Monitor key presses in this view to see if the user types 794 * any commit keys, which consist of ENTER, TAB, or DPAD_CENTER. 795 * If the user has entered text that has contact matches and types 796 * a commit key, create a chip from the topmost matching contact. 797 * If the user has entered text that has no contact matches and types 798 * a commit key, then create a chip from the text they have entered. 799 */ 800 @Override 801 public boolean onKeyUp(int keyCode, KeyEvent event) { 802 switch (keyCode) { 803 case KeyEvent.KEYCODE_ENTER: 804 case KeyEvent.KEYCODE_DPAD_CENTER: 805 if (event.hasNoModifiers()) { 806 if (commitDefault()) { 807 return true; 808 } 809 if (mSelectedChip != null) { 810 clearSelectedChip(); 811 return true; 812 } else if (focusNext()) { 813 return true; 814 } 815 } 816 break; 817 case KeyEvent.KEYCODE_TAB: 818 if (event.hasNoModifiers()) { 819 if (mSelectedChip != null) { 820 clearSelectedChip(); 821 } else { 822 commitDefault(); 823 } 824 if (focusNext()) { 825 return true; 826 } 827 } 828 } 829 return super.onKeyUp(keyCode, event); 830 } 831 832 private boolean focusNext() { 833 View next = focusSearch(View.FOCUS_DOWN); 834 if (next != null) { 835 next.requestFocus(); 836 return true; 837 } 838 return false; 839 } 840 841 /** 842 * Create a chip from the default selection. If the popup is showing, the 843 * default is the first item in the popup suggestions list. Otherwise, it is 844 * whatever the user had typed in. End represents where the the tokenizer 845 * should search for a token to turn into a chip. 846 * @return If a chip was created from a real contact. 847 */ 848 private boolean commitDefault() { 849 Editable editable = getText(); 850 int end = getSelectionEnd(); 851 int start = mTokenizer.findTokenStart(editable, end); 852 853 if (shouldCreateChip(start, end)) { 854 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 855 // In the middle of chip; treat this as an edit 856 // and commit the whole token. 857 if (whatEnd != getSelectionEnd()) { 858 handleEdit(start, whatEnd); 859 return true; 860 } 861 return commitChip(start, end , editable); 862 } 863 return false; 864 } 865 866 private void commitByCharacter() { 867 Editable editable = getText(); 868 int end = getSelectionEnd(); 869 int start = mTokenizer.findTokenStart(editable, end); 870 if (shouldCreateChip(start, end)) { 871 commitChip(start, end, editable); 872 } 873 setSelection(getText().length()); 874 } 875 876 private boolean commitChip(int start, int end, Editable editable) { 877 if (getAdapter().getCount() > 0 && enoughToFilter()) { 878 // choose the first entry. 879 submitItemAtPosition(0); 880 dismissDropDown(); 881 return true; 882 } else { 883 int tokenEnd = mTokenizer.findTokenEnd(editable, start); 884 String text = editable.toString().substring(start, tokenEnd).trim(); 885 clearComposingText(); 886 if (text != null && text.length() > 0 && !text.equals(" ")) { 887 RecipientEntry entry = createTokenizedEntry(text); 888 if (entry != null) { 889 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 890 CharSequence chipText = createChip(entry, false); 891 editable.replace(start, end, chipText); 892 } 893 dismissDropDown(); 894 return true; 895 } 896 } 897 return false; 898 } 899 900 private boolean shouldCreateChip(int start, int end) { 901 return hasFocus() && enoughToFilter() && !alreadyHasChip(start, end); 902 } 903 904 private boolean alreadyHasChip(int start, int end) { 905 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 906 if ((chips == null || chips.length == 0)) { 907 return false; 908 } 909 return true; 910 } 911 912 private void handleEdit(int start, int end) { 913 // This is in the middle of a chip, so select out the whole chip 914 // and commit it. 915 Editable editable = getText(); 916 setSelection(end); 917 String text = getText().toString().substring(start, end); 918 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 919 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 920 CharSequence chipText = createChip(entry, false); 921 editable.replace(start, getSelectionEnd(), chipText); 922 dismissDropDown(); 923 } 924 925 /** 926 * If there is a selected chip, delegate the key events 927 * to the selected chip. 928 */ 929 @Override 930 public boolean onKeyDown(int keyCode, KeyEvent event) { 931 if (mSelectedChip != null && keyCode == KeyEvent.KEYCODE_DEL) { 932 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 933 mAlternatesPopup.dismiss(); 934 } 935 removeChip(mSelectedChip); 936 } 937 938 if (keyCode == KeyEvent.KEYCODE_ENTER && event.hasNoModifiers()) { 939 return true; 940 } 941 942 return super.onKeyDown(keyCode, event); 943 } 944 945 private Spannable getSpannable() { 946 return getText(); 947 } 948 949 private int getChipStart(RecipientChip chip) { 950 return getSpannable().getSpanStart(chip); 951 } 952 953 private int getChipEnd(RecipientChip chip) { 954 return getSpannable().getSpanEnd(chip); 955 } 956 957 /** 958 * Instead of filtering on the entire contents of the edit box, 959 * this subclass method filters on the range from 960 * {@link Tokenizer#findTokenStart} to {@link #getSelectionEnd} 961 * if the length of that range meets or exceeds {@link #getThreshold} 962 * and makes sure that the range is not already a Chip. 963 */ 964 @Override 965 protected void performFiltering(CharSequence text, int keyCode) { 966 if (enoughToFilter()) { 967 int end = getSelectionEnd(); 968 int start = mTokenizer.findTokenStart(text, end); 969 // If this is a RecipientChip, don't filter 970 // on its contents. 971 Spannable span = getSpannable(); 972 RecipientChip[] chips = span.getSpans(start, end, RecipientChip.class); 973 if (chips != null && chips.length > 0) { 974 return; 975 } 976 } 977 super.performFiltering(text, keyCode); 978 } 979 980 private void clearSelectedChip() { 981 if (mSelectedChip != null) { 982 unselectChip(mSelectedChip); 983 mSelectedChip = null; 984 } 985 setCursorVisible(true); 986 } 987 988 /** 989 * Monitor touch events in the RecipientEditTextView. 990 * If the view does not have focus, any tap on the view 991 * will just focus the view. If the view has focus, determine 992 * if the touch target is a recipient chip. If it is and the chip 993 * is not selected, select it and clear any other selected chips. 994 * If it isn't, then select that chip. 995 */ 996 @Override 997 public boolean onTouchEvent(MotionEvent event) { 998 if (!isFocused()) { 999 // Ignore any chip taps until this view is focused. 1000 return super.onTouchEvent(event); 1001 } 1002 1003 boolean handled = super.onTouchEvent(event); 1004 int action = event.getAction(); 1005 boolean chipWasSelected = false; 1006 if (action == MotionEvent.ACTION_DOWN && mSelectedChip == null) { 1007 mGestureDetector.onTouchEvent(event); 1008 } 1009 if (mCopyDialog == null && action == MotionEvent.ACTION_UP) { 1010 float x = event.getX(); 1011 float y = event.getY(); 1012 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 1013 RecipientChip currentChip = findChip(offset); 1014 if (currentChip != null) { 1015 if (action == MotionEvent.ACTION_UP) { 1016 if (mSelectedChip != null && mSelectedChip != currentChip) { 1017 clearSelectedChip(); 1018 mSelectedChip = selectChip(currentChip); 1019 } else if (mSelectedChip == null) { 1020 // Selection may have moved due to the tap event, 1021 // but make sure we correctly reset selection to the 1022 // end so that any unfinished chips are committed. 1023 setSelection(getText().length()); 1024 commitDefault(); 1025 mSelectedChip = selectChip(currentChip); 1026 } else { 1027 onClick(mSelectedChip, offset, x, y); 1028 } 1029 } 1030 chipWasSelected = true; 1031 handled = true; 1032 } 1033 } 1034 if (action == MotionEvent.ACTION_UP && !chipWasSelected) { 1035 clearSelectedChip(); 1036 } 1037 return handled; 1038 } 1039 1040 private void scrollLineIntoView(int line) { 1041 if (mScrollView != null) { 1042 mScrollView.scrollBy(0, calculateOffsetFromBottom(line)); 1043 } 1044 } 1045 1046 private void showAlternates(RecipientChip currentChip, ListPopupWindow alternatesPopup, 1047 int width, Context context) { 1048 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1049 int bottom = calculateOffsetFromBottom(line); 1050 // Align the alternates popup with the left side of the View, 1051 // regardless of the position of the chip tapped. 1052 alternatesPopup.setWidth(width); 1053 alternatesPopup.setAnchorView(this); 1054 alternatesPopup.setVerticalOffset(bottom); 1055 alternatesPopup.setAdapter(createAlternatesAdapter(currentChip)); 1056 alternatesPopup.setOnItemClickListener(mAlternatesListener); 1057 alternatesPopup.show(); 1058 ListView listView = alternatesPopup.getListView(); 1059 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1060 // Checked item would be -1 if the adapter has not 1061 // loaded the view that should be checked yet. The 1062 // variable will be set correctly when onCheckedItemChanged 1063 // is called in a separate thread. 1064 if (mCheckedItem != -1) { 1065 listView.setItemChecked(mCheckedItem, true); 1066 mCheckedItem = -1; 1067 } 1068 } 1069 1070 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 1071 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 1072 mAlternatesLayout, this); 1073 } 1074 1075 private ListAdapter createSingleAddressAdapter(RecipientChip currentChip) { 1076 return new SingleRecipientArrayAdapter(getContext(), mAlternatesLayout, currentChip 1077 .getEntry()); 1078 } 1079 1080 @Override 1081 public void onCheckedItemChanged(int position) { 1082 ListView listView = mAlternatesPopup.getListView(); 1083 if (listView != null && listView.getCheckedItemCount() == 0) { 1084 listView.setItemChecked(position, true); 1085 } else { 1086 mCheckedItem = position; 1087 } 1088 } 1089 1090 // TODO: This algorithm will need a lot of tweaking after more people have used 1091 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 1092 // what comes before the finger. 1093 private int putOffsetInRange(int o) { 1094 int offset = o; 1095 Editable text = getText(); 1096 int length = text.length(); 1097 // Remove whitespace from end to find "real end" 1098 int realLength = length; 1099 for (int i = length - 1; i >= 0; i--) { 1100 if (text.charAt(i) == ' ') { 1101 realLength--; 1102 } else { 1103 break; 1104 } 1105 } 1106 1107 // If the offset is beyond or at the end of the text, 1108 // leave it alone. 1109 if (offset >= realLength) { 1110 return offset; 1111 } 1112 Editable editable = getText(); 1113 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 1114 // Keep walking backward! 1115 offset--; 1116 } 1117 return offset; 1118 } 1119 1120 private int findText(Editable text, int offset) { 1121 if (text.charAt(offset) != ' ') { 1122 return offset; 1123 } 1124 return -1; 1125 } 1126 1127 private RecipientChip findChip(int offset) { 1128 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1129 // Find the chip that contains this offset. 1130 for (int i = 0; i < chips.length; i++) { 1131 RecipientChip chip = chips[i]; 1132 int start = getChipStart(chip); 1133 int end = getChipEnd(chip); 1134 if (offset >= start && offset <= end) { 1135 return chip; 1136 } 1137 } 1138 return null; 1139 } 1140 1141 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 1142 String displayText = entry.getDestination(); 1143 displayText = (String) mTokenizer.terminateToken(displayText); 1144 // Always leave a blank space at the end of a chip. 1145 int textLength = displayText.length()-1; 1146 SpannableString chipText = new SpannableString(displayText); 1147 int end = getSelectionEnd(); 1148 int start = mTokenizer.findTokenStart(getText(), end); 1149 try { 1150 RecipientChip chip = constructChipSpan(entry, start, pressed); 1151 chipText.setSpan(chip, 0, textLength, 1152 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1153 chip.setOriginalText(chipText.toString()); 1154 } catch (NullPointerException e) { 1155 Log.e(TAG, e.getMessage(), e); 1156 return null; 1157 } 1158 1159 return chipText; 1160 } 1161 1162 /** 1163 * When an item in the suggestions list has been clicked, create a chip from the 1164 * contact information of the selected item. 1165 */ 1166 @Override 1167 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1168 submitItemAtPosition(position); 1169 } 1170 1171 private void submitItemAtPosition(int position) { 1172 RecipientEntry entry = createValidatedEntry( 1173 (RecipientEntry)getAdapter().getItem(position)); 1174 if (entry == null) { 1175 return; 1176 } 1177 clearComposingText(); 1178 1179 int end = getSelectionEnd(); 1180 int start = mTokenizer.findTokenStart(getText(), end); 1181 1182 Editable editable = getText(); 1183 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1184 CharSequence chip = createChip(entry, false); 1185 if (chip != null) { 1186 editable.replace(start, end, chip); 1187 } 1188 } 1189 1190 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1191 if (item == null) { 1192 return null; 1193 } 1194 final RecipientEntry entry; 1195 // If the display name and the address are the same, or if this is a 1196 // valid contact, but the destination is invalid, then make this a fake 1197 // recipient that is editable. 1198 String destination = item.getDestination(); 1199 if (TextUtils.isEmpty(item.getDisplayName()) 1200 || TextUtils.equals(item.getDisplayName(), destination) 1201 || (mValidator != null && !mValidator.isValid(destination))) { 1202 entry = RecipientEntry.constructFakeEntry(destination); 1203 } else { 1204 entry = item; 1205 } 1206 return entry; 1207 } 1208 1209 /** Returns a collection of contact Id for each chip inside this View. */ 1210 /* package */ Collection<Long> getContactIds() { 1211 final Set<Long> result = new HashSet<Long>(); 1212 RecipientChip[] chips = getRecipients(); 1213 if (chips != null) { 1214 for (RecipientChip chip : chips) { 1215 result.add(chip.getContactId()); 1216 } 1217 } 1218 return result; 1219 } 1220 1221 private RecipientChip[] getRecipients() { 1222 return getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1223 } 1224 1225 private RecipientChip[] getSortedRecipients() { 1226 ArrayList<RecipientChip> recipientsList = new ArrayList<RecipientChip>(Arrays 1227 .asList(getRecipients())); 1228 final Spannable spannable = getSpannable(); 1229 Collections.sort(recipientsList, new Comparator<RecipientChip>() { 1230 1231 @Override 1232 public int compare(RecipientChip first, RecipientChip second) { 1233 int firstStart = spannable.getSpanStart(first); 1234 int secondStart = spannable.getSpanStart(second); 1235 if (firstStart < secondStart) { 1236 return -1; 1237 } else if (firstStart > secondStart) { 1238 return 1; 1239 } else { 1240 return 0; 1241 } 1242 } 1243 }); 1244 return recipientsList.toArray(new RecipientChip[recipientsList.size()]); 1245 } 1246 1247 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1248 /* package */ Collection<Long> getDataIds() { 1249 final Set<Long> result = new HashSet<Long>(); 1250 RecipientChip [] chips = getRecipients(); 1251 if (chips != null) { 1252 for (RecipientChip chip : chips) { 1253 result.add(chip.getDataId()); 1254 } 1255 } 1256 return result; 1257 } 1258 1259 1260 @Override 1261 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1262 return false; 1263 } 1264 1265 @Override 1266 public void onDestroyActionMode(ActionMode mode) { 1267 } 1268 1269 @Override 1270 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1271 return false; 1272 } 1273 1274 /** 1275 * No chips are selectable. 1276 */ 1277 @Override 1278 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1279 return false; 1280 } 1281 1282 /** 1283 * Create the more chip. The more chip is text that replaces any chips that 1284 * do not fit in the pre-defined available space when the 1285 * RecipientEditTextView loses focus. 1286 */ 1287 private void createMoreChip() { 1288 if (!mShouldShrink) { 1289 return; 1290 } 1291 1292 ImageSpan[] tempMore = getSpannable().getSpans(0, getText().length(), MoreImageSpan.class); 1293 if (tempMore.length > 0) { 1294 getSpannable().removeSpan(tempMore[0]); 1295 } 1296 RecipientChip[] recipients = getSortedRecipients(); 1297 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1298 mMoreChip = null; 1299 return; 1300 } 1301 Spannable spannable = getSpannable(); 1302 int numRecipients = recipients.length; 1303 int overage = numRecipients - CHIP_LIMIT; 1304 String moreText = String.format(mMoreItem.getText().toString(), overage); 1305 TextPaint morePaint = new TextPaint(getPaint()); 1306 morePaint.setTextSize(mMoreItem.getTextSize()); 1307 morePaint.setColor(mMoreItem.getCurrentTextColor()); 1308 int width = (int)morePaint.measureText(moreText) + mMoreItem.getPaddingLeft() 1309 + mMoreItem.getPaddingRight(); 1310 int height = getLineHeight(); 1311 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1312 Canvas canvas = new Canvas(drawable); 1313 canvas.drawText(moreText, 0, moreText.length(), 0, height - getLayout().getLineDescent(0), 1314 morePaint); 1315 1316 Drawable result = new BitmapDrawable(getResources(), drawable); 1317 result.setBounds(0, 0, width, height); 1318 MoreImageSpan moreSpan = new MoreImageSpan(result); 1319 // Remove the overage chips. 1320 if (recipients == null || recipients.length == 0) { 1321 Log.w(TAG, 1322 "We have recipients. Tt should not be possible to have zero RecipientChips."); 1323 mMoreChip = null; 1324 return; 1325 } 1326 mRemovedSpans = new ArrayList<RecipientChip>(); 1327 int totalReplaceStart = 0; 1328 int totalReplaceEnd = 0; 1329 Editable text = getText(); 1330 for (int i = numRecipients - overage; i < recipients.length; i++) { 1331 mRemovedSpans.add(recipients[i]); 1332 if (i == numRecipients - overage) { 1333 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1334 } 1335 if (i == recipients.length - 1) { 1336 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1337 } 1338 if (mTemporaryRecipients == null || !mTemporaryRecipients.contains(recipients[i])) { 1339 int spanStart = spannable.getSpanStart(recipients[i]); 1340 int spanEnd = spannable.getSpanEnd(recipients[i]); 1341 recipients[i].setOriginalText(text.toString().substring(spanStart, spanEnd)); 1342 } 1343 spannable.removeSpan(recipients[i]); 1344 } 1345 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1346 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1347 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1348 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1349 text.replace(start, end, chipText); 1350 mMoreChip = moreSpan; 1351 } 1352 1353 /** 1354 * Replace the more chip, if it exists, with all of the recipient chips it had 1355 * replaced when the RecipientEditTextView gains focus. 1356 */ 1357 private void removeMoreChip() { 1358 if (mMoreChip != null) { 1359 Spannable span = getSpannable(); 1360 span.removeSpan(mMoreChip); 1361 mMoreChip = null; 1362 // Re-add the spans that were removed. 1363 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1364 // Recreate each removed span. 1365 Editable editable = getText(); 1366 for (RecipientChip chip : mRemovedSpans) { 1367 int chipStart; 1368 int chipEnd; 1369 String token; 1370 // Need to find the location of the chip, again. 1371 token = (String) chip.getOriginalText(); 1372 chipStart = editable.toString().indexOf(token); 1373 // -1 for the space! 1374 chipEnd = Math.min(editable.length(), chipStart + token.length()); 1375 // Only set the span if we found a matching token. 1376 if (chipStart != -1) { 1377 editable.setSpan(chip, chipStart, chipEnd, 1378 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1379 } 1380 } 1381 mRemovedSpans.clear(); 1382 } 1383 } 1384 } 1385 1386 /** 1387 * Show specified chip as selected. If the RecipientChip is just an email address, 1388 * selecting the chip will take the contents of the chip and place it at 1389 * the end of the RecipientEditTextView for inline editing. If the 1390 * RecipientChip is a complete contact, then selecting the chip 1391 * will change the background color of the chip, show the delete icon, 1392 * and a popup window with the address in use highlighted and any other 1393 * alternate addresses for the contact. 1394 * @param currentChip Chip to select. 1395 * @return A RecipientChip in the selected state or null if the chip 1396 * just contained an email address. 1397 */ 1398 public RecipientChip selectChip(RecipientChip currentChip) { 1399 if (currentChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1400 CharSequence text = currentChip.getValue(); 1401 Editable editable = getText(); 1402 removeChip(currentChip); 1403 editable.append(text); 1404 setCursorVisible(true); 1405 setSelection(editable.length()); 1406 return null; 1407 } else if (currentChip.getContactId() == RecipientEntry.GENERATED_CONTACT) { 1408 int start = getChipStart(currentChip); 1409 int end = getChipEnd(currentChip); 1410 getSpannable().removeSpan(currentChip); 1411 RecipientChip newChip; 1412 try { 1413 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1414 } catch (NullPointerException e) { 1415 Log.e(TAG, e.getMessage(), e); 1416 return null; 1417 } 1418 Editable editable = getText(); 1419 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1420 if (start == -1 || end == -1) { 1421 Log.d(TAG, "The chip being selected no longer exists but should."); 1422 } else { 1423 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1424 } 1425 newChip.setSelected(true); 1426 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1427 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1428 } 1429 showAddress(newChip, mAddressPopup, getWidth(), getContext()); 1430 setCursorVisible(false); 1431 return newChip; 1432 } else { 1433 int start = getChipStart(currentChip); 1434 int end = getChipEnd(currentChip); 1435 getSpannable().removeSpan(currentChip); 1436 RecipientChip newChip; 1437 try { 1438 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1439 } catch (NullPointerException e) { 1440 Log.e(TAG, e.getMessage(), e); 1441 return null; 1442 } 1443 Editable editable = getText(); 1444 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1445 if (start == -1 || end == -1) { 1446 Log.d(TAG, "The chip being selected no longer exists but should."); 1447 } else { 1448 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1449 } 1450 newChip.setSelected(true); 1451 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1452 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1453 } 1454 showAlternates(newChip, mAlternatesPopup, getWidth(), getContext()); 1455 setCursorVisible(false); 1456 return newChip; 1457 } 1458 } 1459 1460 1461 private void showAddress(final RecipientChip currentChip, final ListPopupWindow popup, 1462 int width, Context context) { 1463 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1464 int bottom = calculateOffsetFromBottom(line); 1465 // Align the alternates popup with the left side of the View, 1466 // regardless of the position of the chip tapped. 1467 popup.setWidth(width); 1468 popup.setAnchorView(this); 1469 popup.setVerticalOffset(bottom); 1470 popup.setAdapter(createSingleAddressAdapter(currentChip)); 1471 popup.setOnItemClickListener(new OnItemClickListener() { 1472 @Override 1473 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1474 unselectChip(currentChip); 1475 popup.dismiss(); 1476 } 1477 }); 1478 popup.show(); 1479 ListView listView = popup.getListView(); 1480 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1481 listView.setItemChecked(0, true); 1482 } 1483 1484 /** 1485 * Remove selection from this chip. Unselecting a RecipientChip will render 1486 * the chip without a delete icon and with an unfocused background. This 1487 * is called when the RecipientChip no longer has focus. 1488 */ 1489 public void unselectChip(RecipientChip chip) { 1490 int start = getChipStart(chip); 1491 int end = getChipEnd(chip); 1492 Editable editable = getText(); 1493 mSelectedChip = null; 1494 if (start == -1 || end == -1) { 1495 Log.e(TAG, "The chip being unselected no longer exists but should."); 1496 } else { 1497 getSpannable().removeSpan(chip); 1498 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1499 editable.removeSpan(chip); 1500 try { 1501 editable.setSpan(constructChipSpan(chip.getEntry(), start, false), start, end, 1502 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1503 } catch (NullPointerException e) { 1504 Log.e(TAG, e.getMessage(), e); 1505 } 1506 } 1507 setCursorVisible(true); 1508 setSelection(editable.length()); 1509 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1510 mAlternatesPopup.dismiss(); 1511 } 1512 } 1513 1514 1515 /** 1516 * Return whether this chip contains the position passed in. 1517 */ 1518 public boolean matchesChip(RecipientChip chip, int offset) { 1519 int start = getChipStart(chip); 1520 int end = getChipEnd(chip); 1521 if (start == -1 || end == -1) { 1522 return false; 1523 } 1524 return (offset >= start && offset <= end); 1525 } 1526 1527 1528 /** 1529 * Return whether a touch event was inside the delete target of 1530 * a selected chip. It is in the delete target if: 1531 * 1) the x and y points of the event are within the 1532 * delete assset. 1533 * 2) the point tapped would have caused a cursor to appear 1534 * right after the selected chip. 1535 * @return boolean 1536 */ 1537 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1538 // Figure out the bounds of this chip and whether or not 1539 // the user clicked in the X portion. 1540 return chip.isSelected() && offset == getChipEnd(chip); 1541 } 1542 1543 /** 1544 * Remove the chip and any text associated with it from the RecipientEditTextView. 1545 */ 1546 private void removeChip(RecipientChip chip) { 1547 Spannable spannable = getSpannable(); 1548 int spanStart = spannable.getSpanStart(chip); 1549 int spanEnd = spannable.getSpanEnd(chip); 1550 Editable text = getText(); 1551 int toDelete = spanEnd; 1552 boolean wasSelected = chip == mSelectedChip; 1553 // Clear that there is a selected chip before updating any text. 1554 if (wasSelected) { 1555 mSelectedChip = null; 1556 } 1557 // Always remove trailing spaces when removing a chip. 1558 while (toDelete >= 0 && toDelete < text.length() && text.charAt(toDelete) == ' ') { 1559 toDelete++; 1560 } 1561 spannable.removeSpan(chip); 1562 text.delete(spanStart, toDelete); 1563 if (wasSelected) { 1564 clearSelectedChip(); 1565 } 1566 } 1567 1568 /** 1569 * Replace this currently selected chip with a new chip 1570 * that uses the contact data provided. 1571 */ 1572 public void replaceChip(RecipientChip chip, RecipientEntry entry) { 1573 boolean wasSelected = chip == mSelectedChip; 1574 if (wasSelected) { 1575 mSelectedChip = null; 1576 } 1577 int start = getChipStart(chip); 1578 int end = getChipEnd(chip); 1579 getSpannable().removeSpan(chip); 1580 Editable editable = getText(); 1581 CharSequence chipText = createChip(entry, false); 1582 if (start == -1 || end == -1) { 1583 Log.e(TAG, "The chip to replace does not exist but should."); 1584 editable.insert(0, chipText); 1585 } else { 1586 // There may be a space to replace with this chip's new associated 1587 // space. Check for it. 1588 int toReplace = end; 1589 while (toReplace >= 0 && toReplace < editable.length() 1590 && editable.charAt(toReplace) == ' ') { 1591 toReplace++; 1592 } 1593 editable.replace(start, toReplace, chipText); 1594 } 1595 setCursorVisible(true); 1596 if (wasSelected) { 1597 clearSelectedChip(); 1598 } 1599 } 1600 1601 /** 1602 * Handle click events for a chip. When a selected chip receives a click 1603 * event, see if that event was in the delete icon. If so, delete it. 1604 * Otherwise, unselect the chip. 1605 */ 1606 public void onClick(RecipientChip chip, int offset, float x, float y) { 1607 if (chip.isSelected()) { 1608 if (isInDelete(chip, offset, x, y)) { 1609 removeChip(chip); 1610 } else { 1611 clearSelectedChip(); 1612 } 1613 } 1614 } 1615 1616 private boolean chipsPending() { 1617 return mPendingChipsCount > 0 || (mRemovedSpans != null && mRemovedSpans.size() > 0); 1618 } 1619 1620 @Override 1621 public void removeTextChangedListener(TextWatcher watcher) { 1622 mTextWatcher = null; 1623 super.removeTextChangedListener(watcher); 1624 } 1625 1626 private class RecipientTextWatcher implements TextWatcher { 1627 @Override 1628 public void afterTextChanged(Editable s) { 1629 // If the text has been set to null or empty, make sure we remove 1630 // all the spans we applied. 1631 if (TextUtils.isEmpty(s)) { 1632 // Remove all the chips spans. 1633 Spannable spannable = getSpannable(); 1634 RecipientChip[] chips = spannable.getSpans(0, getText().length(), 1635 RecipientChip.class); 1636 for (RecipientChip chip : chips) { 1637 spannable.removeSpan(chip); 1638 } 1639 if (mMoreChip != null) { 1640 spannable.removeSpan(mMoreChip); 1641 } 1642 return; 1643 } 1644 // Get whether there are any recipients pending addition to the 1645 // view. If there are, don't do anything in the text watcher. 1646 if (chipsPending()) { 1647 return; 1648 } 1649 if (mSelectedChip != null) { 1650 setCursorVisible(true); 1651 setSelection(getText().length()); 1652 clearSelectedChip(); 1653 } 1654 int length = s.length(); 1655 // Make sure there is content there to parse and that it is 1656 // not just the commit character. 1657 if (length > 1) { 1658 char last; 1659 int end = getSelectionEnd() == 0 ? 0 : getSelectionEnd() - 1; 1660 int len = length() - 1; 1661 if (end != len) { 1662 last = s.charAt(end); 1663 } else { 1664 last = s.charAt(len); 1665 } 1666 if (last == COMMIT_CHAR_SEMICOLON || last == COMMIT_CHAR_COMMA) { 1667 commitByCharacter(); 1668 } else if (last == COMMIT_CHAR_SPACE) { 1669 // Check if this is a valid email address. If it is, 1670 // commit it. 1671 String text = getText().toString(); 1672 int tokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 1673 String sub = text.substring(tokenStart, mTokenizer.findTokenEnd(text, 1674 tokenStart)); 1675 if (mValidator != null && mValidator.isValid(sub)) { 1676 commitByCharacter(); 1677 } 1678 } 1679 } 1680 } 1681 1682 @Override 1683 public void onTextChanged(CharSequence s, int start, int before, int count) { 1684 // Do nothing. 1685 } 1686 1687 @Override 1688 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 1689 } 1690 } 1691 1692 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 1693 private RecipientChip createFreeChip(RecipientEntry entry) { 1694 String displayText = entry.getDestination(); 1695 if (displayText.indexOf(",") == -1) { 1696 displayText = (String) mTokenizer.terminateToken(displayText); 1697 } 1698 try { 1699 return constructChipSpan(entry, -1, false); 1700 } catch (NullPointerException e) { 1701 Log.e(TAG, e.getMessage(), e); 1702 return null; 1703 } 1704 } 1705 1706 @Override 1707 protected Void doInBackground(Void... params) { 1708 if (mIndividualReplacements != null) { 1709 mIndividualReplacements.cancel(true); 1710 } 1711 // For each chip in the list, look up the matching contact. 1712 // If there is a match, replace that chip with the matching 1713 // chip. 1714 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 1715 RecipientChip[] existingChips = getSortedRecipients(); 1716 for (int i = 0; i < existingChips.length; i++) { 1717 originalRecipients.add(existingChips[i]); 1718 } 1719 if (mRemovedSpans != null) { 1720 originalRecipients.addAll(mRemovedSpans); 1721 } 1722 String[] addresses = new String[originalRecipients.size()]; 1723 for (int i = 0; i < originalRecipients.size(); i++) { 1724 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1725 } 1726 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1727 .getMatchingRecipients(getContext(), addresses); 1728 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 1729 for (final RecipientChip temp : originalRecipients) { 1730 RecipientEntry entry = null; 1731 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1732 && getSpannable().getSpanStart(temp) != -1) { 1733 // Replace this. 1734 entry = createValidatedEntry(entries.get(tokenizeAddress(temp.getEntry() 1735 .getDestination()))); 1736 } 1737 if (entry != null) { 1738 replacements.add(createFreeChip(entry)); 1739 } else { 1740 replacements.add(temp); 1741 } 1742 } 1743 if (replacements != null && replacements.size() > 0) { 1744 mHandler.post(new Runnable() { 1745 @Override 1746 public void run() { 1747 SpannableStringBuilder text = new SpannableStringBuilder(getText() 1748 .toString()); 1749 Editable oldText = getText(); 1750 int start, end; 1751 int i = 0; 1752 for (RecipientChip chip : originalRecipients) { 1753 start = oldText.getSpanStart(chip); 1754 if (start != -1) { 1755 end = oldText.getSpanEnd(chip); 1756 text.removeSpan(chip); 1757 // Leave a spot for the space! 1758 RecipientChip replacement = replacements.get(i); 1759 text.setSpan(replacement, start, end, 1760 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1761 replacement.setOriginalText(text.toString().substring(start, end)); 1762 } 1763 i++; 1764 } 1765 Editable editable = getText(); 1766 editable.clear(); 1767 editable.insert(0, text); 1768 originalRecipients.clear(); 1769 } 1770 }); 1771 } 1772 return null; 1773 } 1774 } 1775 1776 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 1777 @SuppressWarnings("unchecked") 1778 @Override 1779 protected Void doInBackground(Object... params) { 1780 // For each chip in the list, look up the matching contact. 1781 // If there is a match, replace that chip with the matching 1782 // chip. 1783 final ArrayList<RecipientChip> originalRecipients = 1784 (ArrayList<RecipientChip>) params[0]; 1785 String[] addresses = new String[originalRecipients.size()]; 1786 for (int i = 0; i < originalRecipients.size(); i++) { 1787 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1788 } 1789 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1790 .getMatchingRecipients(getContext(), addresses); 1791 for (final RecipientChip temp : originalRecipients) { 1792 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1793 && getSpannable().getSpanStart(temp) != -1) { 1794 // Replace this. 1795 final RecipientEntry entry = createValidatedEntry(entries 1796 .get(tokenizeAddress(temp.getEntry().getDestination()))); 1797 if (entry != null) { 1798 mHandler.post(new Runnable() { 1799 @Override 1800 public void run() { 1801 replaceChip(temp, entry); 1802 } 1803 }); 1804 } 1805 } 1806 } 1807 return null; 1808 } 1809 } 1810 1811 1812 /** 1813 * MoreImageSpan is a simple class created for tracking the existence of a 1814 * more chip across activity restarts/ 1815 */ 1816 private class MoreImageSpan extends ImageSpan { 1817 public MoreImageSpan(Drawable b) { 1818 super(b); 1819 } 1820 } 1821 1822 @Override 1823 public boolean onDown(MotionEvent e) { 1824 return false; 1825 } 1826 1827 @Override 1828 public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { 1829 // Do nothing. 1830 return false; 1831 } 1832 1833 @Override 1834 public void onLongPress(MotionEvent event) { 1835 if (mSelectedChip != null) { 1836 return; 1837 } 1838 float x = event.getX(); 1839 float y = event.getY(); 1840 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 1841 RecipientChip currentChip = findChip(offset); 1842 if (currentChip != null) { 1843 // Copy the selected chip email address. 1844 showCopyDialog(currentChip.getEntry().getDestination()); 1845 } 1846 } 1847 1848 private void showCopyDialog(final String address) { 1849 mCopyAddress = address; 1850 mCopyDialog = new Dialog(getContext()); 1851 mCopyDialog.setTitle(address); 1852 mCopyDialog.setContentView(mCopyViewRes); 1853 mCopyDialog.setCancelable(true); 1854 mCopyDialog.setCanceledOnTouchOutside(true); 1855 mCopyDialog.findViewById(android.R.id.button1).setOnClickListener(this); 1856 mCopyDialog.setOnDismissListener(this); 1857 mCopyDialog.show(); 1858 } 1859 1860 @Override 1861 public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) { 1862 // Do nothing. 1863 return false; 1864 } 1865 1866 @Override 1867 public void onShowPress(MotionEvent e) { 1868 // Do nothing. 1869 } 1870 1871 @Override 1872 public boolean onSingleTapUp(MotionEvent e) { 1873 // Do nothing. 1874 return false; 1875 } 1876 1877 @Override 1878 public void onDismiss(DialogInterface dialog) { 1879 mCopyAddress = null; 1880 mCopyDialog = 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