RecipientEditTextView.java revision e0d95425cbadd7aaff5f8fdbb30ac40cb22c0aa4
1/* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.ex.chips; 18 19import android.app.Dialog; 20import android.content.ClipData; 21import android.content.ClipboardManager; 22import android.content.Context; 23import android.content.DialogInterface; 24import android.content.DialogInterface.OnDismissListener; 25import android.graphics.Bitmap; 26import android.graphics.BitmapFactory; 27import android.graphics.Canvas; 28import android.graphics.Matrix; 29import android.graphics.Rect; 30import android.graphics.RectF; 31import android.graphics.drawable.BitmapDrawable; 32import android.graphics.drawable.Drawable; 33import android.os.AsyncTask; 34import android.os.Handler; 35import android.os.Message; 36import android.text.Editable; 37import android.text.InputType; 38import android.text.Layout; 39import android.text.Spannable; 40import android.text.SpannableString; 41import android.text.SpannableStringBuilder; 42import android.text.Spanned; 43import android.text.TextPaint; 44import android.text.TextUtils; 45import android.text.TextWatcher; 46import android.text.method.QwertyKeyListener; 47import android.text.style.ImageSpan; 48import android.text.util.Rfc822Token; 49import android.text.util.Rfc822Tokenizer; 50import android.util.AttributeSet; 51import android.util.Log; 52import android.view.ActionMode; 53import android.view.ActionMode.Callback; 54import android.view.GestureDetector; 55import android.view.KeyEvent; 56import android.view.LayoutInflater; 57import android.view.Menu; 58import android.view.MenuItem; 59import android.view.MotionEvent; 60import android.view.View; 61import android.view.View.OnClickListener; 62import android.view.ViewParent; 63import android.widget.AdapterView; 64import android.widget.AdapterView.OnItemClickListener; 65import android.widget.Filterable; 66import android.widget.ListAdapter; 67import android.widget.ListPopupWindow; 68import android.widget.ListView; 69import android.widget.MultiAutoCompleteTextView; 70import android.widget.PopupWindow; 71import android.widget.ScrollView; 72import android.widget.TextView; 73 74import java.util.ArrayList; 75import java.util.Arrays; 76import java.util.Collection; 77import java.util.Collections; 78import java.util.Comparator; 79import java.util.HashMap; 80import java.util.HashSet; 81import java.util.Set; 82 83/** 84 * RecipientEditTextView is an auto complete text view for use with applications 85 * that use the new Chips UI for addressing a message to recipients. 86 */ 87public class RecipientEditTextView extends MultiAutoCompleteTextView implements 88 OnItemClickListener, Callback, RecipientAlternatesAdapter.OnCheckedItemChangedListener, 89 GestureDetector.OnGestureListener, OnDismissListener, OnClickListener, 90 PopupWindow.OnDismissListener { 91 92 private static final String TAG = "RecipientEditTextView"; 93 94 // TODO: get correct number/ algorithm from with UX. 95 private static final int CHIP_LIMIT = 2; 96 97 private Drawable mChipBackground = null; 98 99 private Drawable mChipDelete = null; 100 101 private int mChipPadding; 102 103 private Tokenizer mTokenizer; 104 105 private Drawable mChipBackgroundPressed; 106 107 private RecipientChip mSelectedChip; 108 109 private int mAlternatesLayout; 110 111 private Bitmap mDefaultContactPhoto; 112 113 private ImageSpan mMoreChip; 114 115 private TextView mMoreItem; 116 117 private final ArrayList<String> mPendingChips = new ArrayList<String>(); 118 119 private float mChipHeight; 120 121 private float mChipFontSize; 122 123 private Validator mValidator; 124 125 private Drawable mInvalidChipBackground; 126 127 private Handler mHandler; 128 129 private static int DISMISS = "dismiss".hashCode(); 130 131 private static final long DISMISS_DELAY = 300; 132 133 private int mPendingChipsCount = 0; 134 135 private static int sSelectedTextColor = -1; 136 137 private static final char COMMIT_CHAR_COMMA = ','; 138 139 private static final char COMMIT_CHAR_SEMICOLON = ';'; 140 141 private static final char COMMIT_CHAR_SPACE = ' '; 142 143 private ListPopupWindow mAlternatesPopup; 144 145 private ListPopupWindow mAddressPopup; 146 147 private ArrayList<RecipientChip> mTemporaryRecipients; 148 149 private ArrayList<RecipientChip> mRemovedSpans; 150 151 private boolean mShouldShrink = true; 152 153 // Chip copy fields. 154 private GestureDetector mGestureDetector; 155 156 private Dialog mCopyDialog; 157 158 private int mCopyViewRes; 159 160 private String mCopyAddress; 161 162 /** 163 * Used with {@link #mAlternatesPopup}. Handles clicks to alternate addresses for a 164 * selected chip. 165 */ 166 private OnItemClickListener mAlternatesListener; 167 168 private int mCheckedItem; 169 private TextWatcher mTextWatcher; 170 171 private ScrollView mScrollView; 172 173 private boolean mTried; 174 175 private final Runnable mAddTextWatcher = new Runnable() { 176 @Override 177 public void run() { 178 if (mTextWatcher == null) { 179 mTextWatcher = new RecipientTextWatcher(); 180 addTextChangedListener(mTextWatcher); 181 } 182 } 183 }; 184 185 private IndividualReplacementTask mIndividualReplacements; 186 187 private Runnable mHandlePendingChips = new Runnable() { 188 189 @Override 190 public void run() { 191 handlePendingChips(); 192 } 193 194 }; 195 196 public RecipientEditTextView(Context context, AttributeSet attrs) { 197 super(context, attrs); 198 if (sSelectedTextColor == -1) { 199 sSelectedTextColor = context.getResources().getColor(android.R.color.white); 200 } 201 mAlternatesPopup = new ListPopupWindow(context); 202 mAlternatesPopup.setOnDismissListener(this); 203 mAddressPopup = new ListPopupWindow(context); 204 mAddressPopup.setOnDismissListener(this); 205 mCopyDialog = new Dialog(context); 206 mAlternatesListener = new OnItemClickListener() { 207 @Override 208 public void onItemClick(AdapterView<?> adapterView,View view, int position, 209 long rowId) { 210 mAlternatesPopup.setOnItemClickListener(null); 211 setEnabled(true); 212 replaceChip(mSelectedChip, ((RecipientAlternatesAdapter) adapterView.getAdapter()) 213 .getRecipientEntry(position)); 214 Message delayed = Message.obtain(mHandler, DISMISS); 215 delayed.obj = mAlternatesPopup; 216 mHandler.sendMessageDelayed(delayed, DISMISS_DELAY); 217 clearComposingText(); 218 } 219 }; 220 setInputType(getInputType() | InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS); 221 setOnItemClickListener(this); 222 setCustomSelectionActionModeCallback(this); 223 mHandler = new Handler() { 224 @Override 225 public void handleMessage(Message msg) { 226 if (msg.what == DISMISS) { 227 ((ListPopupWindow) msg.obj).dismiss(); 228 return; 229 } 230 super.handleMessage(msg); 231 } 232 }; 233 mTextWatcher = new RecipientTextWatcher(); 234 addTextChangedListener(mTextWatcher); 235 mGestureDetector = new GestureDetector(context, this); 236 } 237 238 @Override 239 public <T extends ListAdapter & Filterable> void setAdapter(T adapter) { 240 super.setAdapter(adapter); 241 if (adapter == null) { 242 return; 243 } 244 } 245 246 @Override 247 public void onSelectionChanged(int start, int end) { 248 // When selection changes, see if it is inside the chips area. 249 // If so, move the cursor back after the chips again. 250 Spannable span = getSpannable(); 251 int textLength = getText().length(); 252 RecipientChip[] chips = span.getSpans(start, textLength, RecipientChip.class); 253 if (chips != null && chips.length > 0) { 254 if (chips != null && chips.length > 0) { 255 // Grab the last chip and set the cursor to after it. 256 setSelection(Math.min(span.getSpanEnd(chips[chips.length - 1]) + 1, textLength)); 257 } 258 } 259 super.onSelectionChanged(start, end); 260 } 261 262 /** 263 * Convenience method: Append the specified text slice to the TextView's 264 * display buffer, upgrading it to BufferType.EDITABLE if it was 265 * not already editable. Commas are excluded as they are added automatically 266 * by the view. 267 */ 268 @Override 269 public void append(CharSequence text, int start, int end) { 270 // We don't care about watching text changes while appending. 271 if (mTextWatcher != null) { 272 removeTextChangedListener(mTextWatcher); 273 } 274 super.append(text, start, end); 275 if (!TextUtils.isEmpty(text) && TextUtils.getTrimmedLength(text) > 0) { 276 final String displayString = (String) text; 277 int seperatorPos = displayString.indexOf(COMMIT_CHAR_COMMA); 278 if (seperatorPos != 0 && !TextUtils.isEmpty(displayString) 279 && TextUtils.getTrimmedLength(displayString) > 0) { 280 mPendingChipsCount++; 281 mPendingChips.add((String)text); 282 } 283 } 284 // Put a message on the queue to make sure we ALWAYS handle pending chips. 285 if (mPendingChipsCount > 0) { 286 postHandlePendingChips(); 287 } 288 mHandler.post(mAddTextWatcher); 289 } 290 291 @Override 292 public void onFocusChanged(boolean hasFocus, int direction, Rect previous) { 293 super.onFocusChanged(hasFocus, direction, previous); 294 if (!hasFocus) { 295 shrink(); 296 } else { 297 expand(); 298 scrollLineIntoView(getLineCount()); 299 } 300 } 301 302 @Override 303 public void performValidation() { 304 // Do nothing. Chips handles its own validation. 305 } 306 307 private void shrink() { 308 if (mSelectedChip != null 309 && mSelectedChip.getEntry().getContactId() != RecipientEntry.INVALID_CONTACT) { 310 clearSelectedChip(); 311 } else { 312 // Reset any pending chips as they would have been handled 313 // when the field lost focus. 314 if (mPendingChipsCount > 0) { 315 postHandlePendingChips(); 316 } else { 317 Editable editable = getText(); 318 int end = getSelectionEnd(); 319 int start = mTokenizer.findTokenStart(editable, end); 320 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 321 if ((chips == null || chips.length == 0)) { 322 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 323 // In the middle of chip; treat this as an edit 324 // and commit the whole token. 325 if (whatEnd != getSelectionEnd()) { 326 handleEdit(start, whatEnd); 327 } else { 328 commitChip(start, end, editable); 329 } 330 } 331 } 332 mHandler.post(mAddTextWatcher); 333 } 334 createMoreChip(); 335 } 336 337 private void expand() { 338 removeMoreChip(); 339 setCursorVisible(true); 340 Editable text = getText(); 341 setSelection(text != null && text.length() > 0 ? text.length() : 0); 342 // If there are any temporary chips, try replacing them now that the user 343 // has expanded the field. 344 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0) { 345 new RecipientReplacementTask().execute(); 346 mTemporaryRecipients = null; 347 } 348 } 349 350 private CharSequence ellipsizeText(CharSequence text, TextPaint paint, float maxWidth) { 351 paint.setTextSize(mChipFontSize); 352 if (maxWidth <= 0 && Log.isLoggable(TAG, Log.DEBUG)) { 353 Log.d(TAG, "Max width is negative: " + maxWidth); 354 } 355 return TextUtils.ellipsize(text, paint, maxWidth, 356 TextUtils.TruncateAt.END); 357 } 358 359 private Bitmap createSelectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 360 // Ellipsize the text so that it takes AT MOST the entire width of the 361 // autocomplete text entry area. Make sure to leave space for padding 362 // on the sides. 363 int height = (int) mChipHeight; 364 int deleteWidth = height; 365 CharSequence ellipsizedText = ellipsizeText(contact.getDisplayName(), paint, 366 calculateAvailableWidth(true) - deleteWidth); 367 368 // Make sure there is a minimum chip width so the user can ALWAYS 369 // tap a chip without difficulty. 370 int width = Math.max(deleteWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 371 ellipsizedText.length())) 372 + (mChipPadding * 2) + deleteWidth); 373 374 // Create the background of the chip. 375 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 376 Canvas canvas = new Canvas(tmpBitmap); 377 if (mChipBackgroundPressed != null) { 378 mChipBackgroundPressed.setBounds(0, 0, width, height); 379 mChipBackgroundPressed.draw(canvas); 380 paint.setColor(sSelectedTextColor); 381 // Vertically center the text in the chip. 382 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 383 getTextYOffset((String) ellipsizedText, paint, height), paint); 384 // Make the delete a square. 385 mChipDelete.setBounds(width - deleteWidth, 0, width, height); 386 mChipDelete.draw(canvas); 387 } else { 388 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 389 } 390 return tmpBitmap; 391 } 392 393 394 /** 395 * Get the background drawable for a RecipientChip. 396 */ 397 public Drawable getChipBackground(RecipientEntry contact) { 398 return (mValidator != null && mValidator.isValid(contact.getDestination())) ? 399 mChipBackground : mInvalidChipBackground; 400 } 401 402 private Bitmap createUnselectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 403 // Ellipsize the text so that it takes AT MOST the entire width of the 404 // autocomplete text entry area. Make sure to leave space for padding 405 // on the sides. 406 int height = (int) mChipHeight; 407 int iconWidth = height; 408 String displayText = 409 !TextUtils.isEmpty(contact.getDisplayName()) ? contact.getDisplayName() : 410 !TextUtils.isEmpty(contact.getDestination()) ? contact.getDestination() : ""; 411 CharSequence ellipsizedText = ellipsizeText(displayText, paint, 412 calculateAvailableWidth(false) - iconWidth); 413 // Make sure there is a minimum chip width so the user can ALWAYS 414 // tap a chip without difficulty. 415 int width = Math.max(iconWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 416 ellipsizedText.length())) 417 + (mChipPadding * 2) + iconWidth); 418 419 // Create the background of the chip. 420 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 421 Canvas canvas = new Canvas(tmpBitmap); 422 Drawable background = getChipBackground(contact); 423 if (background != null) { 424 background.setBounds(0, 0, width, height); 425 background.draw(canvas); 426 427 // Don't draw photos for recipients that have been typed in. 428 if (contact.getContactId() != RecipientEntry.INVALID_CONTACT) { 429 byte[] photoBytes = contact.getPhotoBytes(); 430 // There may not be a photo yet if anything but the first contact address 431 // was selected. 432 if (photoBytes == null && contact.getPhotoThumbnailUri() != null) { 433 // TODO: cache this in the recipient entry? 434 ((BaseRecipientAdapter) getAdapter()).fetchPhoto(contact, contact 435 .getPhotoThumbnailUri()); 436 photoBytes = contact.getPhotoBytes(); 437 } 438 439 Bitmap photo; 440 if (photoBytes != null) { 441 photo = BitmapFactory.decodeByteArray(photoBytes, 0, photoBytes.length); 442 } else { 443 // TODO: can the scaled down default photo be cached? 444 photo = mDefaultContactPhoto; 445 } 446 // Draw the photo on the left side. 447 Matrix matrix = new Matrix(); 448 RectF src = new RectF(0, 0, photo.getWidth(), photo.getHeight()); 449 RectF dst = new RectF(width - iconWidth, 0, width, height); 450 matrix.setRectToRect(src, dst, Matrix.ScaleToFit.CENTER); 451 canvas.drawBitmap(photo, matrix, paint); 452 } else { 453 // Don't leave any space for the icon. It isn't being drawn. 454 iconWidth = 0; 455 } 456 paint.setColor(getContext().getResources().getColor(android.R.color.black)); 457 // Vertically center the text in the chip. 458 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 459 getTextYOffset((String)ellipsizedText, paint, height), paint); 460 } else { 461 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 462 } 463 return tmpBitmap; 464 } 465 466 private float getTextYOffset(String text, TextPaint paint, int height) { 467 Rect bounds = new Rect(); 468 paint.getTextBounds((String)text, 0, text.length(), bounds); 469 int textHeight = bounds.bottom - bounds.top - (int)paint.descent(); 470 return height - ((height - textHeight) / 2); 471 } 472 473 public RecipientChip constructChipSpan(RecipientEntry contact, int offset, boolean pressed) 474 throws NullPointerException { 475 if (mChipBackground == null) { 476 throw new NullPointerException( 477 "Unable to render any chips as setChipDimensions was not called."); 478 } 479 Layout layout = getLayout(); 480 481 TextPaint paint = getPaint(); 482 float defaultSize = paint.getTextSize(); 483 int defaultColor = paint.getColor(); 484 485 Bitmap tmpBitmap; 486 if (pressed) { 487 tmpBitmap = createSelectedChip(contact, paint, layout); 488 489 } else { 490 tmpBitmap = createUnselectedChip(contact, paint, layout); 491 } 492 493 // Pass the full text, un-ellipsized, to the chip. 494 Drawable result = new BitmapDrawable(getResources(), tmpBitmap); 495 result.setBounds(0, 0, tmpBitmap.getWidth(), tmpBitmap.getHeight()); 496 RecipientChip recipientChip = new RecipientChip(result, contact, offset); 497 // Return text to the original size. 498 paint.setTextSize(defaultSize); 499 paint.setColor(defaultColor); 500 return recipientChip; 501 } 502 503 /** 504 * Calculate the bottom of the line the chip will be located on using: 505 * 1) which line the chip appears on 506 * 2) the height of a chip 507 * 3) padding built into the edit text view 508 */ 509 private int calculateOffsetFromBottom(int line) { 510 // Line offsets start at zero. 511 int actualLine = getLineCount() - (line + 1); 512 return -((actualLine * ((int) mChipHeight) + getPaddingBottom()) + getPaddingTop()) 513 + getDropDownVerticalOffset(); 514 } 515 516 /** 517 * Get the max amount of space a chip can take up. The formula takes into 518 * account the width of the EditTextView, any view padding, and padding 519 * that will be added to the chip. 520 */ 521 private float calculateAvailableWidth(boolean pressed) { 522 return getWidth() - getPaddingLeft() - getPaddingRight() - (mChipPadding * 2); 523 } 524 525 /** 526 * Set all chip dimensions and resources. This has to be done from the 527 * application as this is a static library. 528 * @param chipBackground 529 * @param chipBackgroundPressed 530 * @param invalidChip 531 * @param chipDelete 532 * @param defaultContact 533 * @param moreResource 534 * @param alternatesLayout 535 * @param chipHeight 536 * @param padding Padding around the text in a chip 537 * @param chipFontSize 538 * @param copyViewRes 539 */ 540 public void setChipDimensions(Drawable chipBackground, Drawable chipBackgroundPressed, 541 Drawable invalidChip, Drawable chipDelete, Bitmap defaultContact, int moreResource, 542 int alternatesLayout, float chipHeight, float padding, 543 float chipFontSize, int copyViewRes) { 544 mChipBackground = chipBackground; 545 mChipBackgroundPressed = chipBackgroundPressed; 546 mChipDelete = chipDelete; 547 mChipPadding = (int) padding; 548 mAlternatesLayout = alternatesLayout; 549 mDefaultContactPhoto = defaultContact; 550 mMoreItem = (TextView) LayoutInflater.from(getContext()).inflate(moreResource, null); 551 mChipHeight = chipHeight; 552 mChipFontSize = chipFontSize; 553 mInvalidChipBackground = invalidChip; 554 mCopyViewRes = copyViewRes; 555 } 556 557 /** 558 * Set whether to shrink the recipients field such that at most 559 * one line of recipients chips are shown when the field loses 560 * focus. By default, the number of displayed recipients will be 561 * limited and a "more" chip will be shown when focus is lost. 562 * @param shrink 563 */ 564 public void setOnFocusListShrinkRecipients(boolean shrink) { 565 mShouldShrink = shrink; 566 } 567 568 @Override 569 public void onSizeChanged(int width, int height, int oldw, int oldh) { 570 super.onSizeChanged(width, height, oldw, oldh); 571 if (width != 0 && height != 0 && mPendingChipsCount > 0) { 572 postHandlePendingChips(); 573 } 574 // Try to find the scroll view parent, if it exists. 575 if (mScrollView == null && !mTried) { 576 ViewParent parent = getParent(); 577 while (parent != null && !(parent instanceof ScrollView)) { 578 parent = parent.getParent(); 579 } 580 if (parent != null) { 581 mScrollView = (ScrollView) parent; 582 } 583 mTried = true; 584 } 585 } 586 587 private void postHandlePendingChips() { 588 mHandler.removeCallbacks(mHandlePendingChips); 589 mHandler.post(mHandlePendingChips); 590 } 591 592 private void handlePendingChips() { 593 if (mPendingChipsCount <= 0) { 594 return; 595 } 596 if (getWidth() <= 0) { 597 // The widget has not been sized yet. 598 // This will be called as a result of onSizeChanged 599 // at a later point. 600 return; 601 } 602 synchronized (mPendingChips) { 603 mTemporaryRecipients = new ArrayList<RecipientChip>(mPendingChipsCount); 604 Editable editable = getText(); 605 // Tokenize! 606 for (int i = 0; i < mPendingChips.size(); i++) { 607 String current = mPendingChips.get(i); 608 int tokenStart = editable.toString().indexOf(current); 609 int tokenEnd = tokenStart + current.length(); 610 if (tokenStart >= 0) { 611 // When we have a valid token, include it with the token 612 // to the left. 613 if (tokenEnd < editable.length() - 2 614 && editable.charAt(tokenEnd) == COMMIT_CHAR_COMMA) { 615 tokenEnd++; 616 } 617 createReplacementChip(tokenStart, tokenEnd, editable); 618 } 619 mPendingChipsCount--; 620 } 621 sanitizeSpannable(); 622 if (mTemporaryRecipients != null 623 && mTemporaryRecipients.size() <= RecipientAlternatesAdapter.MAX_LOOKUPS) { 624 if (hasFocus() || mTemporaryRecipients.size() < CHIP_LIMIT) { 625 new RecipientReplacementTask().execute(); 626 mTemporaryRecipients = null; 627 } else { 628 // Create the "more" chip 629 mIndividualReplacements = new IndividualReplacementTask(); 630 mIndividualReplacements.execute(new ArrayList<RecipientChip>( 631 mTemporaryRecipients.subList(0, CHIP_LIMIT))); 632 633 createMoreChip(); 634 } 635 } else { 636 // There are too many recipients to look up, so just fall back 637 // to 638 // showing addresses for all of them. 639 mTemporaryRecipients = null; 640 createMoreChip(); 641 } 642 mPendingChipsCount = 0; 643 mPendingChips.clear(); 644 } 645 } 646 647 /** 648 * Remove any characters after the last valid chip. 649 */ 650 private void sanitizeSpannable() { 651 // Find the last chip; eliminate any commit characters after it. 652 RecipientChip[] chips = getRecipients(); 653 if (chips != null && chips.length > 0) { 654 int end; 655 ImageSpan lastSpan; 656 if (mMoreChip != null) { 657 lastSpan = mMoreChip; 658 } else { 659 lastSpan = chips[chips.length - 1]; 660 } 661 end = getSpannable().getSpanEnd(lastSpan); 662 Editable editable = getText(); 663 int length = editable.length(); 664 if (length > end) { 665 // See what characters occur after that and eliminate them. 666 if (Log.isLoggable(TAG, Log.DEBUG)) { 667 Log.d(TAG, "There were extra characters after the last tokenizable entry." 668 + editable); 669 } 670 editable.delete(end + 1, length); 671 } 672 } 673 } 674 675 /** 676 * Create a chip that represents just the email address of a recipient. At some later 677 * point, this chip will be attached to a real contact entry, if one exists. 678 */ 679 private void createReplacementChip(int tokenStart, int tokenEnd, Editable editable) { 680 if (alreadyHasChip(tokenStart, tokenEnd)) { 681 // There is already a chip present at this location. 682 // Don't recreate it. 683 return; 684 } 685 String token = editable.toString().substring(tokenStart, tokenEnd); 686 int commitCharIndex = token.trim().lastIndexOf(COMMIT_CHAR_COMMA); 687 if (commitCharIndex == token.length() - 1) { 688 token = token.substring(0, token.length() - 1); 689 } 690 RecipientEntry entry = createTokenizedEntry(token); 691 if (entry != null) { 692 String destText = entry.getDestination(); 693 destText = (String) mTokenizer.terminateToken(destText); 694 // Always leave a blank space at the end of a chip. 695 int textLength = destText.length() - 1; 696 SpannableString chipText = new SpannableString(destText); 697 int end = getSelectionEnd(); 698 int start = mTokenizer.findTokenStart(getText(), end); 699 RecipientChip chip = null; 700 try { 701 chip = constructChipSpan(entry, start, false); 702 chipText.setSpan(chip, 0, textLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 703 } catch (NullPointerException e) { 704 Log.e(TAG, e.getMessage(), e); 705 } 706 707 editable.replace(tokenStart, tokenEnd, chipText); 708 // Add this chip to the list of entries "to replace" 709 if (chip != null) { 710 chip.setOriginalText(chipText.toString()); 711 mTemporaryRecipients.add(chip); 712 } 713 } 714 } 715 716 private RecipientEntry createTokenizedEntry(String token) { 717 if (TextUtils.isEmpty(token)) { 718 return null; 719 } 720 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(token); 721 String display = null; 722 if (isValid(token) && tokens != null && tokens.length > 0) { 723 // If we can get a name from tokenizing, then generate an entry from 724 // this. 725 display = tokens[0].getName(); 726 if (!TextUtils.isEmpty(display)) { 727 return RecipientEntry.constructGeneratedEntry(display, token); 728 } else { 729 display = tokens[0].getAddress(); 730 if (!TextUtils.isEmpty(display)) { 731 return RecipientEntry.constructFakeEntry(display); 732 } 733 } 734 } 735 // Unable to validate the token or to create a valid token from it. 736 // Just create a chip the user can edit. 737 if (mValidator != null && !mValidator.isValid(token)) { 738 // Try fixing up the entry using the validator. 739 token = mValidator.fixText(token).toString(); 740 if (!TextUtils.isEmpty(token)) { 741 // protect against the case of a validator with a null domain, 742 // which doesn't add a domain to the token 743 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(token); 744 if (tokenized.length > 0) { 745 token = tokenized[0].getAddress(); 746 } 747 } 748 } 749 // Otherwise, fallback to just creating an editable email address chip. 750 return RecipientEntry.constructFakeEntry(token); 751 } 752 753 private boolean isValid(String text) { 754 return mValidator == null ? true : mValidator.isValid(text); 755 } 756 757 private String tokenizeAddress(String destination) { 758 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(destination); 759 if (tokens != null && tokens.length > 0) { 760 return tokens[0].getAddress(); 761 } 762 return destination; 763 } 764 765 @Override 766 public void setTokenizer(Tokenizer tokenizer) { 767 mTokenizer = tokenizer; 768 super.setTokenizer(mTokenizer); 769 } 770 771 @Override 772 public void setValidator(Validator validator) { 773 mValidator = validator; 774 super.setValidator(validator); 775 } 776 777 /** 778 * We cannot use the default mechanism for replaceText. Instead, 779 * we override onItemClickListener so we can get all the associated 780 * contact information including display text, address, and id. 781 */ 782 @Override 783 protected void replaceText(CharSequence text) { 784 return; 785 } 786 787 /** 788 * Dismiss any selected chips when the back key is pressed. 789 */ 790 @Override 791 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 792 if (keyCode == KeyEvent.KEYCODE_BACK) { 793 clearSelectedChip(); 794 } 795 return super.onKeyPreIme(keyCode, event); 796 } 797 798 /** 799 * Monitor key presses in this view to see if the user types 800 * any commit keys, which consist of ENTER, TAB, or DPAD_CENTER. 801 * If the user has entered text that has contact matches and types 802 * a commit key, create a chip from the topmost matching contact. 803 * If the user has entered text that has no contact matches and types 804 * a commit key, then create a chip from the text they have entered. 805 */ 806 @Override 807 public boolean onKeyUp(int keyCode, KeyEvent event) { 808 switch (keyCode) { 809 case KeyEvent.KEYCODE_ENTER: 810 case KeyEvent.KEYCODE_DPAD_CENTER: 811 if (event.hasNoModifiers()) { 812 if (commitDefault()) { 813 return true; 814 } 815 if (mSelectedChip != null) { 816 clearSelectedChip(); 817 return true; 818 } else if (focusNext()) { 819 return true; 820 } 821 } 822 break; 823 case KeyEvent.KEYCODE_TAB: 824 if (event.hasNoModifiers()) { 825 if (mSelectedChip != null) { 826 clearSelectedChip(); 827 } else { 828 commitDefault(); 829 } 830 if (focusNext()) { 831 return true; 832 } 833 } 834 } 835 return super.onKeyUp(keyCode, event); 836 } 837 838 private boolean focusNext() { 839 View next = focusSearch(View.FOCUS_DOWN); 840 if (next != null) { 841 next.requestFocus(); 842 return true; 843 } 844 return false; 845 } 846 847 /** 848 * Create a chip from the default selection. If the popup is showing, the 849 * default is the first item in the popup suggestions list. Otherwise, it is 850 * whatever the user had typed in. End represents where the the tokenizer 851 * should search for a token to turn into a chip. 852 * @return If a chip was created from a real contact. 853 */ 854 private boolean commitDefault() { 855 Editable editable = getText(); 856 int end = getSelectionEnd(); 857 int start = mTokenizer.findTokenStart(editable, end); 858 859 if (shouldCreateChip(start, end)) { 860 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 861 // In the middle of chip; treat this as an edit 862 // and commit the whole token. 863 if (whatEnd != getSelectionEnd()) { 864 handleEdit(start, whatEnd); 865 return true; 866 } 867 return commitChip(start, end , editable); 868 } 869 return false; 870 } 871 872 private void commitByCharacter() { 873 Editable editable = getText(); 874 int end = getSelectionEnd(); 875 int start = mTokenizer.findTokenStart(editable, end); 876 if (shouldCreateChip(start, end)) { 877 commitChip(start, end, editable); 878 } 879 setSelection(getText().length()); 880 } 881 882 private boolean commitChip(int start, int end, Editable editable) { 883 if (getAdapter().getCount() > 0 && enoughToFilter()) { 884 // choose the first entry. 885 submitItemAtPosition(0); 886 dismissDropDown(); 887 return true; 888 } else { 889 int tokenEnd = mTokenizer.findTokenEnd(editable, start); 890 String text = editable.toString().substring(start, tokenEnd).trim(); 891 clearComposingText(); 892 if (text != null && text.length() > 0 && !text.equals(" ")) { 893 RecipientEntry entry = createTokenizedEntry(text); 894 if (entry != null) { 895 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 896 CharSequence chipText = createChip(entry, false); 897 editable.replace(start, end, chipText); 898 } 899 dismissDropDown(); 900 return true; 901 } 902 } 903 return false; 904 } 905 906 private boolean shouldCreateChip(int start, int end) { 907 return hasFocus() && enoughToFilter() && !alreadyHasChip(start, end); 908 } 909 910 private boolean alreadyHasChip(int start, int end) { 911 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 912 if ((chips == null || chips.length == 0)) { 913 return false; 914 } 915 return true; 916 } 917 918 private void handleEdit(int start, int end) { 919 // This is in the middle of a chip, so select out the whole chip 920 // and commit it. 921 Editable editable = getText(); 922 setSelection(end); 923 String text = getText().toString().substring(start, end); 924 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 925 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 926 CharSequence chipText = createChip(entry, false); 927 editable.replace(start, getSelectionEnd(), chipText); 928 dismissDropDown(); 929 } 930 931 /** 932 * If there is a selected chip, delegate the key events 933 * to the selected chip. 934 */ 935 @Override 936 public boolean onKeyDown(int keyCode, KeyEvent event) { 937 if (mSelectedChip != null && keyCode == KeyEvent.KEYCODE_DEL) { 938 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 939 mAlternatesPopup.dismiss(); 940 } 941 removeChip(mSelectedChip); 942 } 943 944 if (keyCode == KeyEvent.KEYCODE_ENTER && event.hasNoModifiers()) { 945 return true; 946 } 947 948 return super.onKeyDown(keyCode, event); 949 } 950 951 private Spannable getSpannable() { 952 return getText(); 953 } 954 955 private int getChipStart(RecipientChip chip) { 956 return getSpannable().getSpanStart(chip); 957 } 958 959 private int getChipEnd(RecipientChip chip) { 960 return getSpannable().getSpanEnd(chip); 961 } 962 963 /** 964 * Instead of filtering on the entire contents of the edit box, 965 * this subclass method filters on the range from 966 * {@link Tokenizer#findTokenStart} to {@link #getSelectionEnd} 967 * if the length of that range meets or exceeds {@link #getThreshold} 968 * and makes sure that the range is not already a Chip. 969 */ 970 @Override 971 protected void performFiltering(CharSequence text, int keyCode) { 972 if (enoughToFilter()) { 973 int end = getSelectionEnd(); 974 int start = mTokenizer.findTokenStart(text, end); 975 // If this is a RecipientChip, don't filter 976 // on its contents. 977 Spannable span = getSpannable(); 978 RecipientChip[] chips = span.getSpans(start, end, RecipientChip.class); 979 if (chips != null && chips.length > 0) { 980 return; 981 } 982 } 983 super.performFiltering(text, keyCode); 984 } 985 986 private void clearSelectedChip() { 987 if (mSelectedChip != null) { 988 unselectChip(mSelectedChip); 989 mSelectedChip = null; 990 } 991 setCursorVisible(true); 992 } 993 994 /** 995 * Monitor touch events in the RecipientEditTextView. 996 * If the view does not have focus, any tap on the view 997 * will just focus the view. If the view has focus, determine 998 * if the touch target is a recipient chip. If it is and the chip 999 * is not selected, select it and clear any other selected chips. 1000 * If it isn't, then select that chip. 1001 */ 1002 @Override 1003 public boolean onTouchEvent(MotionEvent event) { 1004 if (!isFocused()) { 1005 // Ignore any chip taps until this view is focused. 1006 return super.onTouchEvent(event); 1007 } 1008 boolean handled = super.onTouchEvent(event); 1009 int action = event.getAction(); 1010 boolean chipWasSelected = false; 1011 if (mSelectedChip == null) { 1012 mGestureDetector.onTouchEvent(event); 1013 } 1014 if (mCopyAddress == null && action == MotionEvent.ACTION_UP) { 1015 float x = event.getX(); 1016 float y = event.getY(); 1017 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 1018 RecipientChip currentChip = findChip(offset); 1019 if (currentChip != null) { 1020 if (action == MotionEvent.ACTION_UP) { 1021 if (mSelectedChip != null && mSelectedChip != currentChip) { 1022 clearSelectedChip(); 1023 mSelectedChip = selectChip(currentChip); 1024 } else if (mSelectedChip == null) { 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 setEnabled(false); 1056 alternatesPopup.setAnchorView(this); 1057 alternatesPopup.setVerticalOffset(bottom); 1058 alternatesPopup.setAdapter(createAlternatesAdapter(currentChip)); 1059 alternatesPopup.setOnItemClickListener(mAlternatesListener); 1060 // Clear the checked item. 1061 mCheckedItem = -1; 1062 alternatesPopup.show(); 1063 ListView listView = alternatesPopup.getListView(); 1064 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1065 // Checked item would be -1 if the adapter has not 1066 // loaded the view that should be checked yet. The 1067 // variable will be set correctly when onCheckedItemChanged 1068 // is called in a separate thread. 1069 if (mCheckedItem != -1) { 1070 listView.setItemChecked(mCheckedItem, true); 1071 mCheckedItem = -1; 1072 } 1073 } 1074 1075 // Dismiss listener for alterns and single address popup. 1076 @Override 1077 public void onDismiss() { 1078 setEnabled(true); 1079 } 1080 1081 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 1082 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 1083 mAlternatesLayout, this); 1084 } 1085 1086 private ListAdapter createSingleAddressAdapter(RecipientChip currentChip) { 1087 return new SingleRecipientArrayAdapter(getContext(), mAlternatesLayout, currentChip 1088 .getEntry()); 1089 } 1090 1091 @Override 1092 public void onCheckedItemChanged(int position) { 1093 ListView listView = mAlternatesPopup.getListView(); 1094 if (listView != null && listView.getCheckedItemCount() == 0) { 1095 listView.setItemChecked(position, true); 1096 } 1097 mCheckedItem = position; 1098 } 1099 1100 // TODO: This algorithm will need a lot of tweaking after more people have used 1101 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 1102 // what comes before the finger. 1103 private int putOffsetInRange(int o) { 1104 int offset = o; 1105 Editable text = getText(); 1106 int length = text.length(); 1107 // Remove whitespace from end to find "real end" 1108 int realLength = length; 1109 for (int i = length - 1; i >= 0; i--) { 1110 if (text.charAt(i) == ' ') { 1111 realLength--; 1112 } else { 1113 break; 1114 } 1115 } 1116 1117 // If the offset is beyond or at the end of the text, 1118 // leave it alone. 1119 if (offset >= realLength) { 1120 return offset; 1121 } 1122 Editable editable = getText(); 1123 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 1124 // Keep walking backward! 1125 offset--; 1126 } 1127 return offset; 1128 } 1129 1130 private int findText(Editable text, int offset) { 1131 if (text.charAt(offset) != ' ') { 1132 return offset; 1133 } 1134 return -1; 1135 } 1136 1137 private RecipientChip findChip(int offset) { 1138 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1139 // Find the chip that contains this offset. 1140 for (int i = 0; i < chips.length; i++) { 1141 RecipientChip chip = chips[i]; 1142 int start = getChipStart(chip); 1143 int end = getChipEnd(chip); 1144 if (offset >= start && offset <= end) { 1145 return chip; 1146 } 1147 } 1148 return null; 1149 } 1150 1151 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 1152 String displayText = entry.getDestination(); 1153 displayText = (String) mTokenizer.terminateToken(displayText); 1154 // Always leave a blank space at the end of a chip. 1155 int textLength = displayText.length()-1; 1156 SpannableString chipText = new SpannableString(displayText); 1157 int end = getSelectionEnd(); 1158 int start = mTokenizer.findTokenStart(getText(), end); 1159 try { 1160 RecipientChip chip = constructChipSpan(entry, start, pressed); 1161 chipText.setSpan(chip, 0, textLength, 1162 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1163 chip.setOriginalText(chipText.toString()); 1164 } catch (NullPointerException e) { 1165 Log.e(TAG, e.getMessage(), e); 1166 return null; 1167 } 1168 1169 return chipText; 1170 } 1171 1172 /** 1173 * When an item in the suggestions list has been clicked, create a chip from the 1174 * contact information of the selected item. 1175 */ 1176 @Override 1177 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1178 submitItemAtPosition(position); 1179 } 1180 1181 private void submitItemAtPosition(int position) { 1182 RecipientEntry entry = createValidatedEntry( 1183 (RecipientEntry)getAdapter().getItem(position)); 1184 if (entry == null) { 1185 return; 1186 } 1187 clearComposingText(); 1188 1189 int end = getSelectionEnd(); 1190 int start = mTokenizer.findTokenStart(getText(), end); 1191 1192 Editable editable = getText(); 1193 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1194 CharSequence chip = createChip(entry, false); 1195 if (chip != null) { 1196 editable.replace(start, end, chip); 1197 } 1198 } 1199 1200 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1201 if (item == null) { 1202 return null; 1203 } 1204 final RecipientEntry entry; 1205 // If the display name and the address are the same, or if this is a 1206 // valid contact, but the destination is invalid, then make this a fake 1207 // recipient that is editable. 1208 String destination = item.getDestination(); 1209 if (TextUtils.isEmpty(item.getDisplayName()) 1210 || TextUtils.equals(item.getDisplayName(), destination) 1211 || (mValidator != null && !mValidator.isValid(destination))) { 1212 entry = RecipientEntry.constructFakeEntry(destination); 1213 } else { 1214 entry = item; 1215 } 1216 return entry; 1217 } 1218 1219 /** Returns a collection of contact Id for each chip inside this View. */ 1220 /* package */ Collection<Long> getContactIds() { 1221 final Set<Long> result = new HashSet<Long>(); 1222 RecipientChip[] chips = getRecipients(); 1223 if (chips != null) { 1224 for (RecipientChip chip : chips) { 1225 result.add(chip.getContactId()); 1226 } 1227 } 1228 return result; 1229 } 1230 1231 private RecipientChip[] getRecipients() { 1232 return getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1233 } 1234 1235 private RecipientChip[] getSortedRecipients() { 1236 ArrayList<RecipientChip> recipientsList = new ArrayList<RecipientChip>(Arrays 1237 .asList(getRecipients())); 1238 final Spannable spannable = getSpannable(); 1239 Collections.sort(recipientsList, new Comparator<RecipientChip>() { 1240 1241 @Override 1242 public int compare(RecipientChip first, RecipientChip second) { 1243 int firstStart = spannable.getSpanStart(first); 1244 int secondStart = spannable.getSpanStart(second); 1245 if (firstStart < secondStart) { 1246 return -1; 1247 } else if (firstStart > secondStart) { 1248 return 1; 1249 } else { 1250 return 0; 1251 } 1252 } 1253 }); 1254 return recipientsList.toArray(new RecipientChip[recipientsList.size()]); 1255 } 1256 1257 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1258 /* package */ Collection<Long> getDataIds() { 1259 final Set<Long> result = new HashSet<Long>(); 1260 RecipientChip [] chips = getRecipients(); 1261 if (chips != null) { 1262 for (RecipientChip chip : chips) { 1263 result.add(chip.getDataId()); 1264 } 1265 } 1266 return result; 1267 } 1268 1269 1270 @Override 1271 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1272 return false; 1273 } 1274 1275 @Override 1276 public void onDestroyActionMode(ActionMode mode) { 1277 } 1278 1279 @Override 1280 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1281 return false; 1282 } 1283 1284 /** 1285 * No chips are selectable. 1286 */ 1287 @Override 1288 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1289 return false; 1290 } 1291 1292 /** 1293 * Create the more chip. The more chip is text that replaces any chips that 1294 * do not fit in the pre-defined available space when the 1295 * RecipientEditTextView loses focus. 1296 */ 1297 private void createMoreChip() { 1298 if (!mShouldShrink) { 1299 return; 1300 } 1301 1302 ImageSpan[] tempMore = getSpannable().getSpans(0, getText().length(), MoreImageSpan.class); 1303 if (tempMore.length > 0) { 1304 getSpannable().removeSpan(tempMore[0]); 1305 } 1306 RecipientChip[] recipients = getSortedRecipients(); 1307 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1308 mMoreChip = null; 1309 return; 1310 } 1311 Spannable spannable = getSpannable(); 1312 int numRecipients = recipients.length; 1313 int overage = numRecipients - CHIP_LIMIT; 1314 String moreText = String.format(mMoreItem.getText().toString(), overage); 1315 TextPaint morePaint = new TextPaint(getPaint()); 1316 morePaint.setTextSize(mMoreItem.getTextSize()); 1317 morePaint.setColor(mMoreItem.getCurrentTextColor()); 1318 int width = (int)morePaint.measureText(moreText) + mMoreItem.getPaddingLeft() 1319 + mMoreItem.getPaddingRight(); 1320 int height = getLineHeight(); 1321 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1322 Canvas canvas = new Canvas(drawable); 1323 canvas.drawText(moreText, 0, moreText.length(), 0, height - getLayout().getLineDescent(0), 1324 morePaint); 1325 1326 Drawable result = new BitmapDrawable(getResources(), drawable); 1327 result.setBounds(0, 0, width, height); 1328 MoreImageSpan moreSpan = new MoreImageSpan(result); 1329 // Remove the overage chips. 1330 if (recipients == null || recipients.length == 0) { 1331 Log.w(TAG, 1332 "We have recipients. Tt should not be possible to have zero RecipientChips."); 1333 mMoreChip = null; 1334 return; 1335 } 1336 mRemovedSpans = new ArrayList<RecipientChip>(); 1337 int totalReplaceStart = 0; 1338 int totalReplaceEnd = 0; 1339 Editable text = getText(); 1340 for (int i = numRecipients - overage; i < recipients.length; i++) { 1341 mRemovedSpans.add(recipients[i]); 1342 if (i == numRecipients - overage) { 1343 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1344 } 1345 if (i == recipients.length - 1) { 1346 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1347 } 1348 if (mTemporaryRecipients == null || !mTemporaryRecipients.contains(recipients[i])) { 1349 int spanStart = spannable.getSpanStart(recipients[i]); 1350 int spanEnd = spannable.getSpanEnd(recipients[i]); 1351 recipients[i].setOriginalText(text.toString().substring(spanStart, spanEnd)); 1352 } 1353 spannable.removeSpan(recipients[i]); 1354 } 1355 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1356 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1357 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1358 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1359 text.replace(start, end, chipText); 1360 mMoreChip = moreSpan; 1361 } 1362 1363 /** 1364 * Replace the more chip, if it exists, with all of the recipient chips it had 1365 * replaced when the RecipientEditTextView gains focus. 1366 */ 1367 private void removeMoreChip() { 1368 if (mMoreChip != null) { 1369 Spannable span = getSpannable(); 1370 span.removeSpan(mMoreChip); 1371 mMoreChip = null; 1372 // Re-add the spans that were removed. 1373 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1374 // Recreate each removed span. 1375 RecipientChip[] recipients = getRecipients(); 1376 // Start the search for tokens after the last currently visible 1377 // chip. 1378 int end = span.getSpanEnd(recipients[recipients.length - 1]); 1379 Editable editable = getText(); 1380 for (RecipientChip chip : mRemovedSpans) { 1381 int chipStart; 1382 int chipEnd; 1383 String token; 1384 // Need to find the location of the chip, again. 1385 token = (String) chip.getOriginalText(); 1386 // As we find the matching recipient for the remove spans, 1387 // reduce the size of the string we need to search. 1388 // That way, if there are duplicates, we always find the correct 1389 // recipient. 1390 chipStart = editable.toString().indexOf(token, end); 1391 // -1 for the space! 1392 end = chipEnd = Math.min(editable.length(), chipStart + token.length()); 1393 // Only set the span if we found a matching token. 1394 if (chipStart != -1) { 1395 editable.setSpan(chip, chipStart, chipEnd, 1396 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1397 } 1398 } 1399 mRemovedSpans.clear(); 1400 } 1401 } 1402 } 1403 1404 /** 1405 * Show specified chip as selected. If the RecipientChip is just an email address, 1406 * selecting the chip will take the contents of the chip and place it at 1407 * the end of the RecipientEditTextView for inline editing. If the 1408 * RecipientChip is a complete contact, then selecting the chip 1409 * will change the background color of the chip, show the delete icon, 1410 * and a popup window with the address in use highlighted and any other 1411 * alternate addresses for the contact. 1412 * @param currentChip Chip to select. 1413 * @return A RecipientChip in the selected state or null if the chip 1414 * just contained an email address. 1415 */ 1416 public RecipientChip selectChip(RecipientChip currentChip) { 1417 if (currentChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1418 CharSequence text = currentChip.getValue(); 1419 Editable editable = getText(); 1420 removeChip(currentChip); 1421 editable.append(text); 1422 setCursorVisible(true); 1423 setSelection(editable.length()); 1424 return new RecipientChip(null, RecipientEntry.constructFakeEntry((String) text), -1); 1425 } else if (currentChip.getContactId() == RecipientEntry.GENERATED_CONTACT) { 1426 int start = getChipStart(currentChip); 1427 int end = getChipEnd(currentChip); 1428 getSpannable().removeSpan(currentChip); 1429 RecipientChip newChip; 1430 try { 1431 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1432 } catch (NullPointerException e) { 1433 Log.e(TAG, e.getMessage(), e); 1434 return null; 1435 } 1436 Editable editable = getText(); 1437 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1438 if (start == -1 || end == -1) { 1439 Log.d(TAG, "The chip being selected no longer exists but should."); 1440 } else { 1441 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1442 } 1443 newChip.setSelected(true); 1444 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1445 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1446 } 1447 showAddress(newChip, mAddressPopup, getWidth(), getContext()); 1448 setCursorVisible(false); 1449 return newChip; 1450 } else { 1451 int start = getChipStart(currentChip); 1452 int end = getChipEnd(currentChip); 1453 getSpannable().removeSpan(currentChip); 1454 RecipientChip newChip; 1455 try { 1456 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1457 } catch (NullPointerException e) { 1458 Log.e(TAG, e.getMessage(), e); 1459 return null; 1460 } 1461 Editable editable = getText(); 1462 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1463 if (start == -1 || end == -1) { 1464 Log.d(TAG, "The chip being selected no longer exists but should."); 1465 } else { 1466 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1467 } 1468 newChip.setSelected(true); 1469 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1470 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1471 } 1472 showAlternates(newChip, mAlternatesPopup, getWidth(), getContext()); 1473 setCursorVisible(false); 1474 return newChip; 1475 } 1476 } 1477 1478 1479 private void showAddress(final RecipientChip currentChip, final ListPopupWindow popup, 1480 int width, Context context) { 1481 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1482 int bottom = calculateOffsetFromBottom(line); 1483 // Align the alternates popup with the left side of the View, 1484 // regardless of the position of the chip tapped. 1485 setEnabled(false); 1486 popup.setWidth(width); 1487 popup.setAnchorView(this); 1488 popup.setVerticalOffset(bottom); 1489 popup.setAdapter(createSingleAddressAdapter(currentChip)); 1490 popup.setOnItemClickListener(new OnItemClickListener() { 1491 @Override 1492 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1493 unselectChip(currentChip); 1494 popup.dismiss(); 1495 } 1496 }); 1497 popup.show(); 1498 ListView listView = popup.getListView(); 1499 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1500 listView.setItemChecked(0, true); 1501 } 1502 1503 /** 1504 * Remove selection from this chip. Unselecting a RecipientChip will render 1505 * the chip without a delete icon and with an unfocused background. This 1506 * is called when the RecipientChip no longer has focus. 1507 */ 1508 public void unselectChip(RecipientChip chip) { 1509 int start = getChipStart(chip); 1510 int end = getChipEnd(chip); 1511 Editable editable = getText(); 1512 mSelectedChip = null; 1513 if (start == -1 || end == -1) { 1514 Log.e(TAG, "The chip being unselected no longer exists."); 1515 } else { 1516 getSpannable().removeSpan(chip); 1517 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1518 editable.removeSpan(chip); 1519 try { 1520 editable.setSpan(constructChipSpan(chip.getEntry(), start, false), start, end, 1521 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1522 } catch (NullPointerException e) { 1523 Log.e(TAG, e.getMessage(), e); 1524 } 1525 } 1526 setCursorVisible(true); 1527 setSelection(editable.length()); 1528 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1529 mAlternatesPopup.dismiss(); 1530 } 1531 } 1532 1533 1534 /** 1535 * Return whether this chip contains the position passed in. 1536 */ 1537 public boolean matchesChip(RecipientChip chip, int offset) { 1538 int start = getChipStart(chip); 1539 int end = getChipEnd(chip); 1540 if (start == -1 || end == -1) { 1541 return false; 1542 } 1543 return (offset >= start && offset <= end); 1544 } 1545 1546 1547 /** 1548 * Return whether a touch event was inside the delete target of 1549 * a selected chip. It is in the delete target if: 1550 * 1) the x and y points of the event are within the 1551 * delete assset. 1552 * 2) the point tapped would have caused a cursor to appear 1553 * right after the selected chip. 1554 * @return boolean 1555 */ 1556 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1557 // Figure out the bounds of this chip and whether or not 1558 // the user clicked in the X portion. 1559 return chip.isSelected() && offset == getChipEnd(chip); 1560 } 1561 1562 /** 1563 * Remove the chip and any text associated with it from the RecipientEditTextView. 1564 */ 1565 private void removeChip(RecipientChip chip) { 1566 Spannable spannable = getSpannable(); 1567 int spanStart = spannable.getSpanStart(chip); 1568 int spanEnd = spannable.getSpanEnd(chip); 1569 Editable text = getText(); 1570 int toDelete = spanEnd; 1571 boolean wasSelected = chip == mSelectedChip; 1572 // Clear that there is a selected chip before updating any text. 1573 if (wasSelected) { 1574 mSelectedChip = null; 1575 } 1576 // Always remove trailing spaces when removing a chip. 1577 while (toDelete >= 0 && toDelete < text.length() && text.charAt(toDelete) == ' ') { 1578 toDelete++; 1579 } 1580 spannable.removeSpan(chip); 1581 text.delete(spanStart, toDelete); 1582 if (wasSelected) { 1583 clearSelectedChip(); 1584 } 1585 } 1586 1587 /** 1588 * Replace this currently selected chip with a new chip 1589 * that uses the contact data provided. 1590 */ 1591 public void replaceChip(RecipientChip chip, RecipientEntry entry) { 1592 boolean wasSelected = chip == mSelectedChip; 1593 if (wasSelected) { 1594 mSelectedChip = null; 1595 } 1596 int start = getChipStart(chip); 1597 int end = getChipEnd(chip); 1598 getSpannable().removeSpan(chip); 1599 Editable editable = getText(); 1600 CharSequence chipText = createChip(entry, false); 1601 if (start == -1 || end == -1) { 1602 Log.e(TAG, "The chip to replace does not exist but should."); 1603 editable.insert(0, chipText); 1604 } else { 1605 // There may be a space to replace with this chip's new associated 1606 // space. Check for it. 1607 int toReplace = end; 1608 while (toReplace >= 0 && toReplace < editable.length() 1609 && editable.charAt(toReplace) == ' ') { 1610 toReplace++; 1611 } 1612 editable.replace(start, toReplace, chipText); 1613 } 1614 setCursorVisible(true); 1615 if (wasSelected) { 1616 clearSelectedChip(); 1617 } 1618 } 1619 1620 /** 1621 * Handle click events for a chip. When a selected chip receives a click 1622 * event, see if that event was in the delete icon. If so, delete it. 1623 * Otherwise, unselect the chip. 1624 */ 1625 public void onClick(RecipientChip chip, int offset, float x, float y) { 1626 if (chip.isSelected()) { 1627 if (isInDelete(chip, offset, x, y)) { 1628 removeChip(chip); 1629 } else { 1630 clearSelectedChip(); 1631 } 1632 } 1633 } 1634 1635 private boolean chipsPending() { 1636 return mPendingChipsCount > 0 || (mRemovedSpans != null && mRemovedSpans.size() > 0); 1637 } 1638 1639 @Override 1640 public void removeTextChangedListener(TextWatcher watcher) { 1641 mTextWatcher = null; 1642 super.removeTextChangedListener(watcher); 1643 } 1644 1645 private class RecipientTextWatcher implements TextWatcher { 1646 @Override 1647 public void afterTextChanged(Editable s) { 1648 // If the text has been set to null or empty, make sure we remove 1649 // all the spans we applied. 1650 if (TextUtils.isEmpty(s)) { 1651 // Remove all the chips spans. 1652 Spannable spannable = getSpannable(); 1653 RecipientChip[] chips = spannable.getSpans(0, getText().length(), 1654 RecipientChip.class); 1655 for (RecipientChip chip : chips) { 1656 spannable.removeSpan(chip); 1657 } 1658 if (mMoreChip != null) { 1659 spannable.removeSpan(mMoreChip); 1660 } 1661 return; 1662 } 1663 // Get whether there are any recipients pending addition to the 1664 // view. If there are, don't do anything in the text watcher. 1665 if (chipsPending()) { 1666 return; 1667 } 1668 if (mSelectedChip != null) { 1669 setCursorVisible(true); 1670 setSelection(getText().length()); 1671 clearSelectedChip(); 1672 } 1673 int length = s.length(); 1674 // Make sure there is content there to parse and that it is 1675 // not just the commit character. 1676 if (length > 1) { 1677 char last; 1678 int end = getSelectionEnd() == 0 ? 0 : getSelectionEnd() - 1; 1679 int len = length() - 1; 1680 if (end != len) { 1681 last = s.charAt(end); 1682 } else { 1683 last = s.charAt(len); 1684 } 1685 if (last == COMMIT_CHAR_SEMICOLON || last == COMMIT_CHAR_COMMA) { 1686 commitByCharacter(); 1687 } else if (last == COMMIT_CHAR_SPACE) { 1688 // Check if this is a valid email address. If it is, 1689 // commit it. 1690 String text = getText().toString(); 1691 int tokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 1692 String sub = text.substring(tokenStart, mTokenizer.findTokenEnd(text, 1693 tokenStart)); 1694 if (mValidator != null && mValidator.isValid(sub)) { 1695 commitByCharacter(); 1696 } 1697 } 1698 } 1699 } 1700 1701 @Override 1702 public void onTextChanged(CharSequence s, int start, int before, int count) { 1703 // Do nothing. 1704 } 1705 1706 @Override 1707 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 1708 } 1709 } 1710 1711 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 1712 private RecipientChip createFreeChip(RecipientEntry entry) { 1713 String displayText = entry.getDestination(); 1714 if (displayText.indexOf(",") == -1) { 1715 displayText = (String) mTokenizer.terminateToken(displayText); 1716 } 1717 try { 1718 return constructChipSpan(entry, -1, false); 1719 } catch (NullPointerException e) { 1720 Log.e(TAG, e.getMessage(), e); 1721 return null; 1722 } 1723 } 1724 1725 @Override 1726 protected Void doInBackground(Void... params) { 1727 if (mIndividualReplacements != null) { 1728 mIndividualReplacements.cancel(true); 1729 } 1730 // For each chip in the list, look up the matching contact. 1731 // If there is a match, replace that chip with the matching 1732 // chip. 1733 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 1734 RecipientChip[] existingChips = getSortedRecipients(); 1735 for (int i = 0; i < existingChips.length; i++) { 1736 originalRecipients.add(existingChips[i]); 1737 } 1738 if (mRemovedSpans != null) { 1739 originalRecipients.addAll(mRemovedSpans); 1740 } 1741 String[] addresses = new String[originalRecipients.size()]; 1742 for (int i = 0; i < originalRecipients.size(); i++) { 1743 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1744 } 1745 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1746 .getMatchingRecipients(getContext(), addresses); 1747 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 1748 for (final RecipientChip temp : originalRecipients) { 1749 RecipientEntry entry = null; 1750 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1751 && getSpannable().getSpanStart(temp) != -1) { 1752 // Replace this. 1753 entry = createValidatedEntry(entries.get(tokenizeAddress(temp.getEntry() 1754 .getDestination()))); 1755 } 1756 if (entry != null) { 1757 replacements.add(createFreeChip(entry)); 1758 } else { 1759 replacements.add(temp); 1760 } 1761 } 1762 if (replacements != null && replacements.size() > 0) { 1763 mHandler.post(new Runnable() { 1764 @Override 1765 public void run() { 1766 SpannableStringBuilder text = new SpannableStringBuilder(getText() 1767 .toString()); 1768 Editable oldText = getText(); 1769 int start, end; 1770 int i = 0; 1771 for (RecipientChip chip : originalRecipients) { 1772 start = oldText.getSpanStart(chip); 1773 if (start != -1) { 1774 end = oldText.getSpanEnd(chip); 1775 text.removeSpan(chip); 1776 // Leave a spot for the space! 1777 RecipientChip replacement = replacements.get(i); 1778 text.setSpan(replacement, start, end, 1779 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1780 replacement.setOriginalText(text.toString().substring(start, end)); 1781 } 1782 i++; 1783 } 1784 Editable editable = getText(); 1785 editable.clear(); 1786 editable.insert(0, text); 1787 originalRecipients.clear(); 1788 } 1789 }); 1790 } 1791 return null; 1792 } 1793 } 1794 1795 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 1796 @SuppressWarnings("unchecked") 1797 @Override 1798 protected Void doInBackground(Object... params) { 1799 // For each chip in the list, look up the matching contact. 1800 // If there is a match, replace that chip with the matching 1801 // chip. 1802 final ArrayList<RecipientChip> originalRecipients = 1803 (ArrayList<RecipientChip>) params[0]; 1804 String[] addresses = new String[originalRecipients.size()]; 1805 for (int i = 0; i < originalRecipients.size(); i++) { 1806 addresses[i] = originalRecipients.get(i).getEntry().getDestination(); 1807 } 1808 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 1809 .getMatchingRecipients(getContext(), addresses); 1810 for (final RecipientChip temp : originalRecipients) { 1811 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 1812 && getSpannable().getSpanStart(temp) != -1) { 1813 // Replace this. 1814 final RecipientEntry entry = createValidatedEntry(entries 1815 .get(tokenizeAddress(temp.getEntry().getDestination()))); 1816 if (entry != null) { 1817 mHandler.post(new Runnable() { 1818 @Override 1819 public void run() { 1820 replaceChip(temp, entry); 1821 } 1822 }); 1823 } 1824 } 1825 } 1826 return null; 1827 } 1828 } 1829 1830 1831 /** 1832 * MoreImageSpan is a simple class created for tracking the existence of a 1833 * more chip across activity restarts/ 1834 */ 1835 private class MoreImageSpan extends ImageSpan { 1836 public MoreImageSpan(Drawable b) { 1837 super(b); 1838 } 1839 } 1840 1841 @Override 1842 public boolean onDown(MotionEvent e) { 1843 return false; 1844 } 1845 1846 @Override 1847 public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { 1848 // Do nothing. 1849 return false; 1850 } 1851 1852 @Override 1853 public void onLongPress(MotionEvent event) { 1854 if (mSelectedChip != null) { 1855 return; 1856 } 1857 float x = event.getX(); 1858 float y = event.getY(); 1859 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 1860 RecipientChip currentChip = findChip(offset); 1861 if (currentChip != null) { 1862 // Copy the selected chip email address. 1863 showCopyDialog(currentChip.getEntry().getDestination()); 1864 } 1865 } 1866 1867 private void showCopyDialog(final String address) { 1868 mCopyAddress = address; 1869 mCopyDialog.setTitle(address); 1870 mCopyDialog.setContentView(mCopyViewRes); 1871 mCopyDialog.setCancelable(true); 1872 mCopyDialog.setCanceledOnTouchOutside(true); 1873 mCopyDialog.findViewById(android.R.id.button1).setOnClickListener(this); 1874 mCopyDialog.setOnDismissListener(this); 1875 mCopyDialog.show(); 1876 } 1877 1878 @Override 1879 public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) { 1880 // Do nothing. 1881 return false; 1882 } 1883 1884 @Override 1885 public void onShowPress(MotionEvent e) { 1886 // Do nothing. 1887 } 1888 1889 @Override 1890 public boolean onSingleTapUp(MotionEvent e) { 1891 // Do nothing. 1892 return false; 1893 } 1894 1895 @Override 1896 public void onDismiss(DialogInterface dialog) { 1897 mCopyAddress = null; 1898 } 1899 1900 @Override 1901 public void onClick(View v) { 1902 // Copy this to the clipboard. 1903 ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService( 1904 Context.CLIPBOARD_SERVICE); 1905 clipboard.setPrimaryClip(ClipData.newPlainText("", mCopyAddress)); 1906 mCopyDialog.dismiss(); 1907 } 1908} 1909