RecipientEditTextView.java revision 52c441e2c03e0f48572348953b985a4bf989c057
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.ClipDescription; 22import android.content.ClipboardManager; 23import android.content.Context; 24import android.content.DialogInterface; 25import android.content.DialogInterface.OnDismissListener; 26import android.content.res.Resources; 27import android.graphics.Bitmap; 28import android.graphics.BitmapFactory; 29import android.graphics.Canvas; 30import android.graphics.Matrix; 31import android.graphics.Point; 32import android.graphics.Rect; 33import android.graphics.RectF; 34import android.graphics.drawable.BitmapDrawable; 35import android.graphics.drawable.Drawable; 36import android.os.AsyncTask; 37import android.os.Handler; 38import android.os.Message; 39import android.os.Parcelable; 40import android.text.Editable; 41import android.text.InputType; 42import android.text.Layout; 43import android.text.Spannable; 44import android.text.SpannableString; 45import android.text.SpannableStringBuilder; 46import android.text.Spanned; 47import android.text.TextPaint; 48import android.text.TextUtils; 49import android.text.TextWatcher; 50import android.text.method.QwertyKeyListener; 51import android.text.style.ImageSpan; 52import android.text.util.Rfc822Token; 53import android.text.util.Rfc822Tokenizer; 54import android.util.AttributeSet; 55import android.util.Log; 56import android.view.ActionMode; 57import android.view.ActionMode.Callback; 58import android.view.DragEvent; 59import android.view.GestureDetector; 60import android.view.KeyEvent; 61import android.view.LayoutInflater; 62import android.view.Menu; 63import android.view.MenuItem; 64import android.view.MotionEvent; 65import android.view.View; 66import android.view.View.OnClickListener; 67import android.view.ViewParent; 68import android.widget.AdapterView; 69import android.widget.AdapterView.OnItemClickListener; 70import android.widget.ListAdapter; 71import android.widget.ListPopupWindow; 72import android.widget.ListView; 73import android.widget.MultiAutoCompleteTextView; 74import android.widget.PopupWindow; 75import android.widget.ScrollView; 76import android.widget.TextView; 77 78 79import java.util.ArrayList; 80import java.util.Arrays; 81import java.util.Collection; 82import java.util.Collections; 83import java.util.Comparator; 84import java.util.HashMap; 85import java.util.HashSet; 86import java.util.Set; 87 88/** 89 * RecipientEditTextView is an auto complete text view for use with applications 90 * that use the new Chips UI for addressing a message to recipients. 91 */ 92public class RecipientEditTextView extends MultiAutoCompleteTextView implements 93 OnItemClickListener, Callback, RecipientAlternatesAdapter.OnCheckedItemChangedListener, 94 GestureDetector.OnGestureListener, OnDismissListener, OnClickListener, 95 PopupWindow.OnDismissListener { 96 97 private static final char COMMIT_CHAR_COMMA = ','; 98 99 private static final char COMMIT_CHAR_SEMICOLON = ';'; 100 101 private static final char COMMIT_CHAR_SPACE = ' '; 102 103 private static final String TAG = "RecipientEditTextView"; 104 105 private static int DISMISS = "dismiss".hashCode(); 106 107 private static final long DISMISS_DELAY = 300; 108 109 // TODO: get correct number/ algorithm from with UX. 110 // Visible for testing. 111 /*package*/ static final int CHIP_LIMIT = 2; 112 113 private static final int MAX_CHIPS_PARSED = 50; 114 115 private static int sSelectedTextColor = -1; 116 117 // Resources for displaying chips. 118 private Drawable mChipBackground = null; 119 120 private Drawable mChipDelete = null; 121 122 private Drawable mInvalidChipBackground; 123 124 private Drawable mChipBackgroundPressed; 125 126 private float mChipHeight; 127 128 private float mChipFontSize; 129 130 private int mChipPadding; 131 132 private Tokenizer mTokenizer; 133 134 private Validator mValidator; 135 136 private RecipientChip mSelectedChip; 137 138 private int mAlternatesLayout; 139 140 private Bitmap mDefaultContactPhoto; 141 142 private ImageSpan mMoreChip; 143 144 private TextView mMoreItem; 145 146 private final ArrayList<String> mPendingChips = new ArrayList<String>(); 147 148 private Handler mHandler; 149 150 private int mPendingChipsCount = 0; 151 152 private boolean mNoChips = false; 153 154 private ListPopupWindow mAlternatesPopup; 155 156 private ListPopupWindow mAddressPopup; 157 158 private ArrayList<RecipientChip> mTemporaryRecipients; 159 160 private ArrayList<RecipientChip> mRemovedSpans; 161 162 private boolean mShouldShrink = true; 163 164 // Chip copy fields. 165 private GestureDetector mGestureDetector; 166 167 private Dialog mCopyDialog; 168 169 private int mCopyViewRes; 170 171 private String mCopyAddress; 172 173 /** 174 * Used with {@link #mAlternatesPopup}. Handles clicks to alternate addresses for a 175 * selected chip. 176 */ 177 private OnItemClickListener mAlternatesListener; 178 179 private int mCheckedItem; 180 181 private TextWatcher mTextWatcher; 182 183 // Obtain the enclosing scroll view, if it exists, so that the view can be 184 // scrolled to show the last line of chips content. 185 private ScrollView mScrollView; 186 187 private boolean mTriedGettingScrollView; 188 189 private boolean mDragEnabled = false; 190 191 private final Runnable mAddTextWatcher = new Runnable() { 192 @Override 193 public void run() { 194 if (mTextWatcher == null) { 195 mTextWatcher = new RecipientTextWatcher(); 196 addTextChangedListener(mTextWatcher); 197 } 198 } 199 }; 200 201 private IndividualReplacementTask mIndividualReplacements; 202 203 private Runnable mHandlePendingChips = new Runnable() { 204 205 @Override 206 public void run() { 207 handlePendingChips(); 208 } 209 210 }; 211 212 private Runnable mDelayedShrink = new Runnable() { 213 214 @Override 215 public void run() { 216 shrink(); 217 } 218 219 }; 220 221 public RecipientEditTextView(Context context, AttributeSet attrs) { 222 super(context, attrs); 223 setChipDimensions(); 224 if (sSelectedTextColor == -1) { 225 sSelectedTextColor = context.getResources().getColor(android.R.color.white); 226 } 227 mAlternatesPopup = new ListPopupWindow(context); 228 mAlternatesPopup.setOnDismissListener(this); 229 mAddressPopup = new ListPopupWindow(context); 230 mAddressPopup.setOnDismissListener(this); 231 mCopyDialog = new Dialog(context); 232 mAlternatesListener = new OnItemClickListener() { 233 @Override 234 public void onItemClick(AdapterView<?> adapterView,View view, int position, 235 long rowId) { 236 mAlternatesPopup.setOnItemClickListener(null); 237 setEnabled(true); 238 replaceChip(mSelectedChip, ((RecipientAlternatesAdapter) adapterView.getAdapter()) 239 .getRecipientEntry(position)); 240 Message delayed = Message.obtain(mHandler, DISMISS); 241 delayed.obj = mAlternatesPopup; 242 mHandler.sendMessageDelayed(delayed, DISMISS_DELAY); 243 clearComposingText(); 244 } 245 }; 246 setInputType(getInputType() | InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS); 247 setOnItemClickListener(this); 248 setCustomSelectionActionModeCallback(this); 249 mHandler = new Handler() { 250 @Override 251 public void handleMessage(Message msg) { 252 if (msg.what == DISMISS) { 253 ((ListPopupWindow) msg.obj).dismiss(); 254 return; 255 } 256 super.handleMessage(msg); 257 } 258 }; 259 mTextWatcher = new RecipientTextWatcher(); 260 addTextChangedListener(mTextWatcher); 261 mGestureDetector = new GestureDetector(context, this); 262 } 263 264 /*package*/ RecipientChip getLastChip() { 265 RecipientChip last = null; 266 RecipientChip[] chips = getSortedRecipients(); 267 if (chips != null && chips.length > 0) { 268 last = chips[chips.length - 1]; 269 } 270 return last; 271 } 272 273 @Override 274 public void onSelectionChanged(int start, int end) { 275 // When selection changes, see if it is inside the chips area. 276 // If so, move the cursor back after the chips again. 277 RecipientChip last = getLastChip(); 278 if (last != null && start < getSpannable().getSpanEnd(last)) { 279 // Grab the last chip and set the cursor to after it. 280 setSelection(Math.min(getSpannable().getSpanEnd(last) + 1, getText().length())); 281 } 282 super.onSelectionChanged(start, end); 283 } 284 285 @Override 286 public void onRestoreInstanceState(Parcelable state) { 287 if (!TextUtils.isEmpty(getText())) { 288 super.onRestoreInstanceState(null); 289 } else { 290 super.onRestoreInstanceState(state); 291 } 292 } 293 294 @Override 295 public Parcelable onSaveInstanceState() { 296 // If the user changes orientation while they are editing, just roll back the selection. 297 clearSelectedChip(); 298 return super.onSaveInstanceState(); 299 } 300 301 /** 302 * Convenience method: Append the specified text slice to the TextView's 303 * display buffer, upgrading it to BufferType.EDITABLE if it was 304 * not already editable. Commas are excluded as they are added automatically 305 * by the view. 306 */ 307 @Override 308 public void append(CharSequence text, int start, int end) { 309 // We don't care about watching text changes while appending. 310 if (mTextWatcher != null) { 311 removeTextChangedListener(mTextWatcher); 312 } 313 super.append(text, start, end); 314 if (!TextUtils.isEmpty(text) && TextUtils.getTrimmedLength(text) > 0) { 315 final String displayString = (String) text; 316 int seperatorPos = displayString.indexOf(COMMIT_CHAR_COMMA); 317 if (seperatorPos != 0 && !TextUtils.isEmpty(displayString) 318 && TextUtils.getTrimmedLength(displayString) > 0) { 319 mPendingChipsCount++; 320 mPendingChips.add((String)text); 321 } 322 } 323 // Put a message on the queue to make sure we ALWAYS handle pending chips. 324 if (mPendingChipsCount > 0) { 325 postHandlePendingChips(); 326 } 327 mHandler.post(mAddTextWatcher); 328 } 329 330 @Override 331 public void onFocusChanged(boolean hasFocus, int direction, Rect previous) { 332 super.onFocusChanged(hasFocus, direction, previous); 333 if (!hasFocus) { 334 shrink(); 335 } else { 336 expand(); 337 scrollLineIntoView(getLineCount()); 338 } 339 } 340 341 @Override 342 public void performValidation() { 343 // Do nothing. Chips handles its own validation. 344 } 345 346 private void shrink() { 347 if (mTokenizer == null) { 348 return; 349 } 350 if (mSelectedChip != null 351 && mSelectedChip.getEntry().getContactId() != RecipientEntry.INVALID_CONTACT) { 352 clearSelectedChip(); 353 } else { 354 if (getWidth() <= 0) { 355 // We don't have the width yet which means the view hasn't been drawn yet 356 // and there is no reason to attempt to commit chips yet. 357 // This focus lost must be the result of an orientation change 358 // or an initial rendering. 359 // Re-post the shrink for later. 360 mHandler.removeCallbacks(mDelayedShrink); 361 mHandler.post(mDelayedShrink); 362 return; 363 } 364 // Reset any pending chips as they would have been handled 365 // when the field lost focus. 366 if (mPendingChipsCount > 0) { 367 postHandlePendingChips(); 368 } else { 369 Editable editable = getText(); 370 int end = getSelectionEnd(); 371 int start = mTokenizer.findTokenStart(editable, end); 372 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 373 if ((chips == null || chips.length == 0)) { 374 Editable text = getText(); 375 int whatEnd = mTokenizer.findTokenEnd(text, start); 376 // This token was already tokenized, so skip past the ending token. 377 if (whatEnd < text.length() && text.charAt(whatEnd) == ',') { 378 whatEnd++; 379 } 380 // In the middle of chip; treat this as an edit 381 // and commit the whole token. 382 int selEnd = getSelectionEnd(); 383 if (whatEnd != selEnd) { 384 handleEdit(start, whatEnd); 385 } else { 386 commitChip(start, end, editable); 387 } 388 } 389 } 390 mHandler.post(mAddTextWatcher); 391 } 392 createMoreChip(); 393 } 394 395 private void expand() { 396 removeMoreChip(); 397 setCursorVisible(true); 398 Editable text = getText(); 399 setSelection(text != null && text.length() > 0 ? text.length() : 0); 400 // If there are any temporary chips, try replacing them now that the user 401 // has expanded the field. 402 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0) { 403 new RecipientReplacementTask().execute(); 404 mTemporaryRecipients = null; 405 } 406 } 407 408 private CharSequence ellipsizeText(CharSequence text, TextPaint paint, float maxWidth) { 409 paint.setTextSize(mChipFontSize); 410 if (maxWidth <= 0 && Log.isLoggable(TAG, Log.DEBUG)) { 411 Log.d(TAG, "Max width is negative: " + maxWidth); 412 } 413 return TextUtils.ellipsize(text, paint, maxWidth, 414 TextUtils.TruncateAt.END); 415 } 416 417 private Bitmap createSelectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 418 // Ellipsize the text so that it takes AT MOST the entire width of the 419 // autocomplete text entry area. Make sure to leave space for padding 420 // on the sides. 421 int height = (int) mChipHeight; 422 int deleteWidth = height; 423 float[] widths = new float[1]; 424 paint.getTextWidths(" ", widths); 425 CharSequence ellipsizedText = ellipsizeText(createChipDisplayText(contact), paint, 426 calculateAvailableWidth(true) - deleteWidth - widths[0]); 427 428 // Make sure there is a minimum chip width so the user can ALWAYS 429 // tap a chip without difficulty. 430 int width = Math.max(deleteWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 431 ellipsizedText.length())) 432 + (mChipPadding * 2) + deleteWidth); 433 434 // Create the background of the chip. 435 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 436 Canvas canvas = new Canvas(tmpBitmap); 437 if (mChipBackgroundPressed != null) { 438 mChipBackgroundPressed.setBounds(0, 0, width, height); 439 mChipBackgroundPressed.draw(canvas); 440 paint.setColor(sSelectedTextColor); 441 // Vertically center the text in the chip. 442 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 443 getTextYOffset((String) ellipsizedText, paint, height), paint); 444 // Make the delete a square. 445 Rect backgroundPadding = new Rect(); 446 mChipBackgroundPressed.getPadding(backgroundPadding); 447 mChipDelete.setBounds(width - deleteWidth + backgroundPadding.left, 448 0 + backgroundPadding.top, 449 width - backgroundPadding.right, 450 height - backgroundPadding.bottom); 451 mChipDelete.draw(canvas); 452 } else { 453 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 454 } 455 return tmpBitmap; 456 } 457 458 459 private Bitmap createUnselectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 460 // Ellipsize the text so that it takes AT MOST the entire width of the 461 // autocomplete text entry area. Make sure to leave space for padding 462 // on the sides. 463 int height = (int) mChipHeight; 464 int iconWidth = height; 465 float[] widths = new float[1]; 466 paint.getTextWidths(" ", widths); 467 CharSequence ellipsizedText = ellipsizeText(createChipDisplayText(contact), paint, 468 calculateAvailableWidth(false) - iconWidth - widths[0]); 469 // Make sure there is a minimum chip width so the user can ALWAYS 470 // tap a chip without difficulty. 471 int width = Math.max(iconWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 472 ellipsizedText.length())) 473 + (mChipPadding * 2) + iconWidth); 474 475 // Create the background of the chip. 476 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 477 Canvas canvas = new Canvas(tmpBitmap); 478 Drawable background = getChipBackground(contact); 479 if (background != null) { 480 background.setBounds(0, 0, width, height); 481 background.draw(canvas); 482 483 // Don't draw photos for recipients that have been typed in. 484 if (contact.getContactId() != RecipientEntry.INVALID_CONTACT) { 485 byte[] photoBytes = contact.getPhotoBytes(); 486 // There may not be a photo yet if anything but the first contact address 487 // was selected. 488 if (photoBytes == null && contact.getPhotoThumbnailUri() != null) { 489 // TODO: cache this in the recipient entry? 490 ((BaseRecipientAdapter) getAdapter()).fetchPhoto(contact, contact 491 .getPhotoThumbnailUri()); 492 photoBytes = contact.getPhotoBytes(); 493 } 494 495 Bitmap photo; 496 if (photoBytes != null) { 497 photo = BitmapFactory.decodeByteArray(photoBytes, 0, photoBytes.length); 498 } else { 499 // TODO: can the scaled down default photo be cached? 500 photo = mDefaultContactPhoto; 501 } 502 // Draw the photo on the left side. 503 if (photo != null) { 504 RectF src = new RectF(0, 0, photo.getWidth(), photo.getHeight()); 505 Rect backgroundPadding = new Rect(); 506 mChipBackground.getPadding(backgroundPadding); 507 RectF dst = new RectF(width - iconWidth + backgroundPadding.left, 508 0 + backgroundPadding.top, 509 width - backgroundPadding.right, 510 height - backgroundPadding.bottom); 511 Matrix matrix = new Matrix(); 512 matrix.setRectToRect(src, dst, Matrix.ScaleToFit.FILL); 513 canvas.drawBitmap(photo, matrix, paint); 514 } 515 } else { 516 // Don't leave any space for the icon. It isn't being drawn. 517 iconWidth = 0; 518 } 519 paint.setColor(getContext().getResources().getColor(android.R.color.black)); 520 // Vertically center the text in the chip. 521 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 522 getTextYOffset((String)ellipsizedText, paint, height), paint); 523 } else { 524 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 525 } 526 return tmpBitmap; 527 } 528 529 /** 530 * Get the background drawable for a RecipientChip. 531 */ 532 // Visible for testing. 533 /*package*/ Drawable getChipBackground(RecipientEntry contact) { 534 return (mValidator != null && mValidator.isValid(contact.getDestination())) ? 535 mChipBackground : mInvalidChipBackground; 536 } 537 538 private float getTextYOffset(String text, TextPaint paint, int height) { 539 Rect bounds = new Rect(); 540 paint.getTextBounds(text, 0, text.length(), bounds); 541 int textHeight = bounds.bottom - bounds.top - (int)paint.descent(); 542 return height - ((height - textHeight) / 2); 543 } 544 545 private RecipientChip constructChipSpan(RecipientEntry contact, int offset, boolean pressed) 546 throws NullPointerException { 547 if (mChipBackground == null) { 548 throw new NullPointerException( 549 "Unable to render any chips as setChipDimensions was not called."); 550 } 551 Layout layout = getLayout(); 552 553 TextPaint paint = getPaint(); 554 float defaultSize = paint.getTextSize(); 555 int defaultColor = paint.getColor(); 556 557 Bitmap tmpBitmap; 558 if (pressed) { 559 tmpBitmap = createSelectedChip(contact, paint, layout); 560 561 } else { 562 tmpBitmap = createUnselectedChip(contact, paint, layout); 563 } 564 565 // Pass the full text, un-ellipsized, to the chip. 566 Drawable result = new BitmapDrawable(getResources(), tmpBitmap); 567 result.setBounds(0, 0, tmpBitmap.getWidth(), tmpBitmap.getHeight()); 568 RecipientChip recipientChip = new RecipientChip(result, contact, offset); 569 // Return text to the original size. 570 paint.setTextSize(defaultSize); 571 paint.setColor(defaultColor); 572 return recipientChip; 573 } 574 575 /** 576 * Calculate the bottom of the line the chip will be located on using: 577 * 1) which line the chip appears on 578 * 2) the height of a chip 579 * 3) padding built into the edit text view 580 */ 581 private int calculateOffsetFromBottom(int line) { 582 // Line offsets start at zero. 583 int actualLine = getLineCount() - (line + 1); 584 return -((actualLine * ((int) mChipHeight) + getPaddingBottom()) + getPaddingTop()) 585 + getDropDownVerticalOffset(); 586 } 587 588 /** 589 * Get the max amount of space a chip can take up. The formula takes into 590 * account the width of the EditTextView, any view padding, and padding 591 * that will be added to the chip. 592 */ 593 private float calculateAvailableWidth(boolean pressed) { 594 return getWidth() - getPaddingLeft() - getPaddingRight() - (mChipPadding * 2); 595 } 596 597 598 private void setChipDimensions() { 599 Resources r = getContext().getResources(); 600 mChipBackground = r.getDrawable(R.drawable.chip_background); 601 mChipBackgroundPressed = r.getDrawable(R.drawable.chip_background_selected); 602 mChipDelete = r.getDrawable(R.drawable.chip_delete); 603 mChipPadding = (int) r.getDimension(R.dimen.chip_padding); 604 mAlternatesLayout = R.layout.chips_alternate_item; 605 mDefaultContactPhoto = BitmapFactory.decodeResource(r, R.drawable.ic_contact_picture); 606 mMoreItem = (TextView) LayoutInflater.from(getContext()).inflate(R.layout.more_item, null); 607 mChipHeight = r.getDimension(R.dimen.chip_height); 608 mChipFontSize = r.getDimension(R.dimen.chip_text_size); 609 mInvalidChipBackground = r.getDrawable(R.drawable.chip_background_invalid); 610 mCopyViewRes = R.layout.copy_chip_dialog_layout; 611 } 612 613 /** 614 * Set all chip dimensions and resources. This has to be done from the 615 * application as this is a static library. 616 * @param chipBackground 617 * @param chipBackgroundPressed 618 * @param invalidChip 619 * @param chipDelete 620 * @param defaultContact 621 * @param moreResource 622 * @param alternatesLayout 623 * @param chipHeight 624 * @param padding Padding around the text in a chip 625 * @param chipFontSize 626 * @param copyViewRes 627 * @deprecated 628 */ 629 public void setChipDimensions(Drawable chipBackground, Drawable chipBackgroundPressed, 630 Drawable invalidChip, Drawable chipDelete, Bitmap defaultContact, int moreResource, 631 int alternatesLayout, float chipHeight, float padding, 632 float chipFontSize, int copyViewRes) { 633 mChipBackground = chipBackground; 634 mChipBackgroundPressed = chipBackgroundPressed; 635 mChipDelete = chipDelete; 636 mChipPadding = (int) padding; 637 mAlternatesLayout = alternatesLayout; 638 mDefaultContactPhoto = defaultContact; 639 mMoreItem = (TextView) LayoutInflater.from(getContext()).inflate(moreResource, null); 640 mChipHeight = chipHeight; 641 mChipFontSize = chipFontSize; 642 mInvalidChipBackground = invalidChip; 643 mCopyViewRes = copyViewRes; 644 } 645 646 // Visible for testing. 647 /* package */ void setMoreItem(TextView moreItem) { 648 mMoreItem = moreItem; 649 } 650 651 652 // Visible for testing. 653 /* package */ void setChipBackground(Drawable chipBackground) { 654 mChipBackground = chipBackground; 655 } 656 657 // Visible for testing. 658 /* package */ void setChipHeight(int height) { 659 mChipHeight = height; 660 } 661 662 /** 663 * Set whether to shrink the recipients field such that at most 664 * one line of recipients chips are shown when the field loses 665 * focus. By default, the number of displayed recipients will be 666 * limited and a "more" chip will be shown when focus is lost. 667 * @param shrink 668 */ 669 public void setOnFocusListShrinkRecipients(boolean shrink) { 670 mShouldShrink = shrink; 671 } 672 673 @Override 674 public void onSizeChanged(int width, int height, int oldw, int oldh) { 675 super.onSizeChanged(width, height, oldw, oldh); 676 if (width != 0 && height != 0) { 677 if (mPendingChipsCount > 0) { 678 postHandlePendingChips(); 679 } else { 680 checkChipWidths(); 681 } 682 } 683 // Try to find the scroll view parent, if it exists. 684 if (mScrollView == null && !mTriedGettingScrollView) { 685 ViewParent parent = getParent(); 686 while (parent != null && !(parent instanceof ScrollView)) { 687 parent = parent.getParent(); 688 } 689 if (parent != null) { 690 mScrollView = (ScrollView) parent; 691 } 692 mTriedGettingScrollView = true; 693 } 694 } 695 696 private void postHandlePendingChips() { 697 mHandler.removeCallbacks(mHandlePendingChips); 698 mHandler.post(mHandlePendingChips); 699 } 700 701 private void checkChipWidths() { 702 // Check the widths of the associated chips. 703 RecipientChip[] chips = getSortedRecipients(); 704 if (chips != null) { 705 Rect bounds; 706 for (RecipientChip chip : chips) { 707 bounds = chip.getDrawable().getBounds(); 708 if (getWidth() > 0 && bounds.right - bounds.left > getWidth()) { 709 // Need to redraw that chip. 710 replaceChip(chip, chip.getEntry()); 711 } 712 } 713 } 714 } 715 716 // Visible for testing. 717 /*package*/ void handlePendingChips() { 718 if (getViewWidth() <= 0) { 719 // The widget has not been sized yet. 720 // This will be called as a result of onSizeChanged 721 // at a later point. 722 return; 723 } 724 if (mPendingChipsCount <= 0) { 725 return; 726 } 727 728 synchronized (mPendingChips) { 729 Editable editable = getText(); 730 // Tokenize! 731 if (mPendingChipsCount <= MAX_CHIPS_PARSED) { 732 for (int i = 0; i < mPendingChips.size(); i++) { 733 String current = mPendingChips.get(i); 734 int tokenStart = editable.toString().indexOf(current); 735 int tokenEnd = tokenStart + current.length(); 736 if (tokenStart >= 0) { 737 // When we have a valid token, include it with the token 738 // to the left. 739 if (tokenEnd < editable.length() - 2 740 && editable.charAt(tokenEnd) == COMMIT_CHAR_COMMA) { 741 tokenEnd++; 742 } 743 createReplacementChip(tokenStart, tokenEnd, editable); 744 } 745 mPendingChipsCount--; 746 } 747 sanitizeEnd(); 748 } else { 749 mNoChips = true; 750 } 751 752 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0 753 && mTemporaryRecipients.size() <= RecipientAlternatesAdapter.MAX_LOOKUPS) { 754 if (hasFocus() || mTemporaryRecipients.size() < CHIP_LIMIT) { 755 new RecipientReplacementTask().execute(); 756 mTemporaryRecipients = null; 757 } else { 758 // Create the "more" chip 759 mIndividualReplacements = new IndividualReplacementTask(); 760 mIndividualReplacements.execute(new ArrayList<RecipientChip>( 761 mTemporaryRecipients.subList(0, CHIP_LIMIT))); 762 763 createMoreChip(); 764 } 765 } else { 766 // There are too many recipients to look up, so just fall back 767 // to showing addresses for all of them. 768 mTemporaryRecipients = null; 769 createMoreChip(); 770 } 771 mPendingChipsCount = 0; 772 mPendingChips.clear(); 773 } 774 } 775 776 // Visible for testing. 777 /*package*/ int getViewWidth() { 778 return getWidth(); 779 } 780 781 /** 782 * Remove any characters after the last valid chip. 783 */ 784 // Visible for testing. 785 /*package*/ void sanitizeEnd() { 786 // Find the last chip; eliminate any commit characters after it. 787 RecipientChip[] chips = getSortedRecipients(); 788 if (chips != null && chips.length > 0) { 789 int end; 790 ImageSpan lastSpan; 791 mMoreChip = getMoreChip(); 792 if (mMoreChip != null) { 793 lastSpan = mMoreChip; 794 } else { 795 lastSpan = getLastChip(); 796 } 797 end = getSpannable().getSpanEnd(lastSpan); 798 Editable editable = getText(); 799 int length = editable.length(); 800 if (length > end) { 801 // See what characters occur after that and eliminate them. 802 if (Log.isLoggable(TAG, Log.DEBUG)) { 803 Log.d(TAG, "There were extra characters after the last tokenizable entry." 804 + editable); 805 } 806 editable.delete(end + 1, length); 807 } 808 } 809 } 810 811 /** 812 * Create a chip that represents just the email address of a recipient. At some later 813 * point, this chip will be attached to a real contact entry, if one exists. 814 */ 815 private void createReplacementChip(int tokenStart, int tokenEnd, Editable editable) { 816 if (alreadyHasChip(tokenStart, tokenEnd)) { 817 // There is already a chip present at this location. 818 // Don't recreate it. 819 return; 820 } 821 String token = editable.toString().substring(tokenStart, tokenEnd); 822 int commitCharIndex = token.trim().lastIndexOf(COMMIT_CHAR_COMMA); 823 if (commitCharIndex == token.length() - 1) { 824 token = token.substring(0, token.length() - 1); 825 } 826 RecipientEntry entry = createTokenizedEntry(token); 827 if (entry != null) { 828 String destText = createAddressText(entry); 829 // Always leave a blank space at the end of a chip. 830 int textLength = destText.length() - 1; 831 SpannableString chipText = new SpannableString(destText); 832 int end = getSelectionEnd(); 833 int start = mTokenizer.findTokenStart(getText(), end); 834 RecipientChip chip = null; 835 try { 836 if (!mNoChips) { 837 chip = constructChipSpan(entry, start, false); 838 chipText.setSpan(chip, 0, textLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 839 } 840 } catch (NullPointerException e) { 841 Log.e(TAG, e.getMessage(), e); 842 } 843 editable.replace(tokenStart, tokenEnd, chipText); 844 // Add this chip to the list of entries "to replace" 845 if (chip != null) { 846 if (mTemporaryRecipients == null) { 847 mTemporaryRecipients = new ArrayList<RecipientChip>(); 848 } 849 chip.setOriginalText(chipText.toString()); 850 mTemporaryRecipients.add(chip); 851 } 852 } 853 } 854 855 private RecipientEntry createTokenizedEntry(String token) { 856 if (TextUtils.isEmpty(token)) { 857 return null; 858 } 859 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(token); 860 String display = null; 861 if (isValid(token) && tokens != null && tokens.length > 0) { 862 // If we can get a name from tokenizing, then generate an entry from 863 // this. 864 display = tokens[0].getName(); 865 if (!TextUtils.isEmpty(display)) { 866 return RecipientEntry.constructGeneratedEntry(display, token); 867 } else { 868 display = tokens[0].getAddress(); 869 if (!TextUtils.isEmpty(display)) { 870 return RecipientEntry.constructFakeEntry(display); 871 } 872 } 873 } 874 // Unable to validate the token or to create a valid token from it. 875 // Just create a chip the user can edit. 876 String validatedToken = null; 877 if (mValidator != null && !mValidator.isValid(token)) { 878 // Try fixing up the entry using the validator. 879 validatedToken = mValidator.fixText(token).toString(); 880 if (!TextUtils.isEmpty(validatedToken)) { 881 if (validatedToken.contains(token)) { 882 // protect against the case of a validator with a null domain, 883 // which doesn't add a domain to the token 884 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(validatedToken); 885 if (tokenized.length > 0) { 886 validatedToken = tokenized[0].getAddress(); 887 } 888 } else { 889 // We ran into a case where the token was invalid and removed 890 // by the validator. In this case, just use the original token 891 // and let the user sort out the error chip. 892 validatedToken = null; 893 } 894 } 895 } 896 // Otherwise, fallback to just creating an editable email address chip. 897 return RecipientEntry 898 .constructFakeEntry(!TextUtils.isEmpty(validatedToken) ? validatedToken : token); 899 } 900 901 private boolean isValid(String text) { 902 return mValidator == null ? true : mValidator.isValid(text); 903 } 904 905 private String tokenizeAddress(String destination) { 906 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(destination); 907 if (tokens != null && tokens.length > 0) { 908 return tokens[0].getAddress(); 909 } 910 return destination; 911 } 912 913 @Override 914 public void setTokenizer(Tokenizer tokenizer) { 915 mTokenizer = tokenizer; 916 super.setTokenizer(mTokenizer); 917 } 918 919 @Override 920 public void setValidator(Validator validator) { 921 mValidator = validator; 922 super.setValidator(validator); 923 } 924 925 /** 926 * We cannot use the default mechanism for replaceText. Instead, 927 * we override onItemClickListener so we can get all the associated 928 * contact information including display text, address, and id. 929 */ 930 @Override 931 protected void replaceText(CharSequence text) { 932 return; 933 } 934 935 /** 936 * Dismiss any selected chips when the back key is pressed. 937 */ 938 @Override 939 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 940 if (keyCode == KeyEvent.KEYCODE_BACK) { 941 clearSelectedChip(); 942 } 943 return super.onKeyPreIme(keyCode, event); 944 } 945 946 /** 947 * Monitor key presses in this view to see if the user types 948 * any commit keys, which consist of ENTER, TAB, or DPAD_CENTER. 949 * If the user has entered text that has contact matches and types 950 * a commit key, create a chip from the topmost matching contact. 951 * If the user has entered text that has no contact matches and types 952 * a commit key, then create a chip from the text they have entered. 953 */ 954 @Override 955 public boolean onKeyUp(int keyCode, KeyEvent event) { 956 switch (keyCode) { 957 case KeyEvent.KEYCODE_ENTER: 958 case KeyEvent.KEYCODE_DPAD_CENTER: 959 if (event.hasNoModifiers()) { 960 if (commitDefault()) { 961 return true; 962 } 963 if (mSelectedChip != null) { 964 clearSelectedChip(); 965 return true; 966 } else if (focusNext()) { 967 return true; 968 } 969 } 970 break; 971 case KeyEvent.KEYCODE_TAB: 972 if (event.hasNoModifiers()) { 973 if (mSelectedChip != null) { 974 clearSelectedChip(); 975 } else { 976 commitDefault(); 977 } 978 if (focusNext()) { 979 return true; 980 } 981 } 982 } 983 return super.onKeyUp(keyCode, event); 984 } 985 986 private boolean focusNext() { 987 View next = focusSearch(View.FOCUS_DOWN); 988 if (next != null) { 989 next.requestFocus(); 990 return true; 991 } 992 return false; 993 } 994 995 /** 996 * Create a chip from the default selection. If the popup is showing, the 997 * default is the first item in the popup suggestions list. Otherwise, it is 998 * whatever the user had typed in. End represents where the the tokenizer 999 * should search for a token to turn into a chip. 1000 * @return If a chip was created from a real contact. 1001 */ 1002 private boolean commitDefault() { 1003 Editable editable = getText(); 1004 int end = getSelectionEnd(); 1005 int start = mTokenizer.findTokenStart(editable, end); 1006 1007 if (shouldCreateChip(start, end)) { 1008 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 1009 // In the middle of chip; treat this as an edit 1010 // and commit the whole token. 1011 if (whatEnd != getSelectionEnd()) { 1012 handleEdit(start, whatEnd); 1013 return true; 1014 } 1015 return commitChip(start, end , editable); 1016 } 1017 return false; 1018 } 1019 1020 private void commitByCharacter() { 1021 Editable editable = getText(); 1022 int end = getSelectionEnd(); 1023 int start = mTokenizer.findTokenStart(editable, end); 1024 if (shouldCreateChip(start, end)) { 1025 commitChip(start, end, editable); 1026 } 1027 setSelection(getText().length()); 1028 } 1029 1030 private boolean commitChip(int start, int end, Editable editable) { 1031 ListAdapter adapter = getAdapter(); 1032 if (adapter != null && adapter.getCount() > 0 && enoughToFilter() 1033 && end == getSelectionEnd()) { 1034 // choose the first entry. 1035 submitItemAtPosition(0); 1036 dismissDropDown(); 1037 return true; 1038 } else { 1039 int tokenEnd = mTokenizer.findTokenEnd(editable, start); 1040 if (editable.length() > tokenEnd + 1) { 1041 char charAt = editable.charAt(tokenEnd + 1); 1042 if (charAt == COMMIT_CHAR_COMMA || charAt == COMMIT_CHAR_SEMICOLON) { 1043 tokenEnd++; 1044 } 1045 } 1046 String text = editable.toString().substring(start, tokenEnd).trim(); 1047 clearComposingText(); 1048 if (text != null && text.length() > 0 && !text.equals(" ")) { 1049 RecipientEntry entry = createTokenizedEntry(text); 1050 if (entry != null) { 1051 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1052 CharSequence chipText = createChip(entry, false); 1053 if (chipText != null && start > -1 && end > -1) { 1054 editable.replace(start, end, chipText); 1055 } 1056 } 1057 // Only dismiss the dropdown if it is related to the text we 1058 // just committed. 1059 // For paste, it may not be as there are possibly multiple 1060 // tokens being added. 1061 if (end == getSelectionEnd()) { 1062 dismissDropDown(); 1063 } 1064 sanitizeBetween(); 1065 return true; 1066 } 1067 } 1068 return false; 1069 } 1070 1071 // Visible for testing. 1072 /* package */ void sanitizeBetween() { 1073 // Find the last chip. 1074 RecipientChip[] recips = getSortedRecipients(); 1075 if (recips != null && recips.length > 0) { 1076 RecipientChip last = recips[recips.length - 1]; 1077 RecipientChip beforeLast = null; 1078 if (recips.length > 1) { 1079 beforeLast = recips[recips.length - 2]; 1080 } 1081 int startLooking = 0; 1082 int end = getSpannable().getSpanStart(last); 1083 if (beforeLast != null) { 1084 startLooking = getSpannable().getSpanEnd(beforeLast); 1085 Editable text = getText(); 1086 if (startLooking == -1 || startLooking > text.length() - 1) { 1087 // There is nothing after this chip. 1088 return; 1089 } 1090 if (text.charAt(startLooking) == ' ') { 1091 startLooking++; 1092 } 1093 } 1094 if (startLooking >= 0 && end >= 0 && startLooking < end) { 1095 getText().delete(startLooking, end); 1096 } 1097 } 1098 } 1099 1100 private boolean shouldCreateChip(int start, int end) { 1101 return !mNoChips && hasFocus() && enoughToFilter() && !alreadyHasChip(start, end); 1102 } 1103 1104 private boolean alreadyHasChip(int start, int end) { 1105 if (mNoChips) { 1106 return true; 1107 } 1108 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 1109 if ((chips == null || chips.length == 0)) { 1110 return false; 1111 } 1112 return true; 1113 } 1114 1115 private void handleEdit(int start, int end) { 1116 if (start == -1 || end == -1) { 1117 // This chip no longer exists in the field. 1118 dismissDropDown(); 1119 return; 1120 } 1121 // This is in the middle of a chip, so select out the whole chip 1122 // and commit it. 1123 Editable editable = getText(); 1124 setSelection(end); 1125 String text = getText().toString().substring(start, end); 1126 if (!TextUtils.isEmpty(text)) { 1127 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 1128 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1129 CharSequence chipText = createChip(entry, false); 1130 int selEnd = getSelectionEnd(); 1131 if (chipText != null && start > -1 && selEnd > -1) { 1132 editable.replace(start, selEnd, chipText); 1133 } 1134 } 1135 dismissDropDown(); 1136 } 1137 1138 /** 1139 * If there is a selected chip, delegate the key events 1140 * to the selected chip. 1141 */ 1142 @Override 1143 public boolean onKeyDown(int keyCode, KeyEvent event) { 1144 if (mSelectedChip != null && keyCode == KeyEvent.KEYCODE_DEL) { 1145 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1146 mAlternatesPopup.dismiss(); 1147 } 1148 removeChip(mSelectedChip); 1149 } 1150 1151 if (keyCode == KeyEvent.KEYCODE_ENTER && event.hasNoModifiers()) { 1152 return true; 1153 } 1154 1155 return super.onKeyDown(keyCode, event); 1156 } 1157 1158 // Visible for testing. 1159 /* package */ Spannable getSpannable() { 1160 return getText(); 1161 } 1162 1163 private int getChipStart(RecipientChip chip) { 1164 return getSpannable().getSpanStart(chip); 1165 } 1166 1167 private int getChipEnd(RecipientChip chip) { 1168 return getSpannable().getSpanEnd(chip); 1169 } 1170 1171 /** 1172 * Instead of filtering on the entire contents of the edit box, 1173 * this subclass method filters on the range from 1174 * {@link Tokenizer#findTokenStart} to {@link #getSelectionEnd} 1175 * if the length of that range meets or exceeds {@link #getThreshold} 1176 * and makes sure that the range is not already a Chip. 1177 */ 1178 @Override 1179 protected void performFiltering(CharSequence text, int keyCode) { 1180 if (enoughToFilter() && !isCompletedToken(text)) { 1181 int end = getSelectionEnd(); 1182 int start = mTokenizer.findTokenStart(text, end); 1183 // If this is a RecipientChip, don't filter 1184 // on its contents. 1185 Spannable span = getSpannable(); 1186 RecipientChip[] chips = span.getSpans(start, end, RecipientChip.class); 1187 if (chips != null && chips.length > 0) { 1188 return; 1189 } 1190 } 1191 super.performFiltering(text, keyCode); 1192 } 1193 1194 // Visible for testing. 1195 /*package*/ boolean isCompletedToken(CharSequence text) { 1196 if (TextUtils.isEmpty(text)) { 1197 return false; 1198 } 1199 // Check to see if this is a completed token before filtering. 1200 int end = text.length(); 1201 int start = mTokenizer.findTokenStart(text, end); 1202 String token = text.toString().substring(start, end).trim(); 1203 if (!TextUtils.isEmpty(token)) { 1204 char atEnd = token.charAt(token.length() - 1); 1205 return atEnd == COMMIT_CHAR_COMMA || atEnd == COMMIT_CHAR_SEMICOLON; 1206 } 1207 return false; 1208 } 1209 1210 private void clearSelectedChip() { 1211 if (mSelectedChip != null) { 1212 unselectChip(mSelectedChip); 1213 mSelectedChip = null; 1214 } 1215 setCursorVisible(true); 1216 } 1217 1218 /** 1219 * Monitor touch events in the RecipientEditTextView. 1220 * If the view does not have focus, any tap on the view 1221 * will just focus the view. If the view has focus, determine 1222 * if the touch target is a recipient chip. If it is and the chip 1223 * is not selected, select it and clear any other selected chips. 1224 * If it isn't, then select that chip. 1225 */ 1226 @Override 1227 public boolean onTouchEvent(MotionEvent event) { 1228 if (!isFocused()) { 1229 // Ignore any chip taps until this view is focused. 1230 return super.onTouchEvent(event); 1231 } 1232 boolean handled = super.onTouchEvent(event); 1233 int action = event.getAction(); 1234 boolean chipWasSelected = false; 1235 if (mSelectedChip == null) { 1236 mGestureDetector.onTouchEvent(event); 1237 } 1238 if (mCopyAddress == null && action == MotionEvent.ACTION_UP) { 1239 float x = event.getX(); 1240 float y = event.getY(); 1241 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 1242 RecipientChip currentChip = findChip(offset); 1243 if (currentChip != null) { 1244 if (action == MotionEvent.ACTION_UP) { 1245 if (mSelectedChip != null && mSelectedChip != currentChip) { 1246 clearSelectedChip(); 1247 mSelectedChip = selectChip(currentChip); 1248 } else if (mSelectedChip == null) { 1249 setSelection(getText().length()); 1250 commitDefault(); 1251 mSelectedChip = selectChip(currentChip); 1252 } else { 1253 onClick(mSelectedChip, offset, x, y); 1254 } 1255 } 1256 chipWasSelected = true; 1257 handled = true; 1258 } else if (mSelectedChip != null 1259 && mSelectedChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1260 chipWasSelected = true; 1261 } 1262 } 1263 if (action == MotionEvent.ACTION_UP && !chipWasSelected) { 1264 clearSelectedChip(); 1265 } 1266 return handled; 1267 } 1268 1269 private void scrollLineIntoView(int line) { 1270 if (mScrollView != null) { 1271 mScrollView.scrollBy(0, calculateOffsetFromBottom(line)); 1272 } 1273 } 1274 1275 private void showAlternates(RecipientChip currentChip, ListPopupWindow alternatesPopup, 1276 int width, Context context) { 1277 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1278 int bottom = calculateOffsetFromBottom(line); 1279 // Align the alternates popup with the left side of the View, 1280 // regardless of the position of the chip tapped. 1281 alternatesPopup.setWidth(width); 1282 setEnabled(false); 1283 alternatesPopup.setAnchorView(this); 1284 alternatesPopup.setVerticalOffset(bottom); 1285 alternatesPopup.setAdapter(createAlternatesAdapter(currentChip)); 1286 alternatesPopup.setOnItemClickListener(mAlternatesListener); 1287 // Clear the checked item. 1288 mCheckedItem = -1; 1289 alternatesPopup.show(); 1290 ListView listView = alternatesPopup.getListView(); 1291 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1292 // Checked item would be -1 if the adapter has not 1293 // loaded the view that should be checked yet. The 1294 // variable will be set correctly when onCheckedItemChanged 1295 // is called in a separate thread. 1296 if (mCheckedItem != -1) { 1297 listView.setItemChecked(mCheckedItem, true); 1298 mCheckedItem = -1; 1299 } 1300 } 1301 1302 // Dismiss listener for alterns and single address popup. 1303 @Override 1304 public void onDismiss() { 1305 setEnabled(true); 1306 } 1307 1308 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 1309 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 1310 mAlternatesLayout, this); 1311 } 1312 1313 private ListAdapter createSingleAddressAdapter(RecipientChip currentChip) { 1314 return new SingleRecipientArrayAdapter(getContext(), mAlternatesLayout, currentChip 1315 .getEntry()); 1316 } 1317 1318 @Override 1319 public void onCheckedItemChanged(int position) { 1320 ListView listView = mAlternatesPopup.getListView(); 1321 if (listView != null && listView.getCheckedItemCount() == 0) { 1322 listView.setItemChecked(position, true); 1323 } 1324 mCheckedItem = position; 1325 } 1326 1327 // TODO: This algorithm will need a lot of tweaking after more people have used 1328 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 1329 // what comes before the finger. 1330 private int putOffsetInRange(int o) { 1331 int offset = o; 1332 Editable text = getText(); 1333 int length = text.length(); 1334 // Remove whitespace from end to find "real end" 1335 int realLength = length; 1336 for (int i = length - 1; i >= 0; i--) { 1337 if (text.charAt(i) == ' ') { 1338 realLength--; 1339 } else { 1340 break; 1341 } 1342 } 1343 1344 // If the offset is beyond or at the end of the text, 1345 // leave it alone. 1346 if (offset >= realLength) { 1347 return offset; 1348 } 1349 Editable editable = getText(); 1350 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 1351 // Keep walking backward! 1352 offset--; 1353 } 1354 return offset; 1355 } 1356 1357 private int findText(Editable text, int offset) { 1358 if (text.charAt(offset) != ' ') { 1359 return offset; 1360 } 1361 return -1; 1362 } 1363 1364 private RecipientChip findChip(int offset) { 1365 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1366 // Find the chip that contains this offset. 1367 for (int i = 0; i < chips.length; i++) { 1368 RecipientChip chip = chips[i]; 1369 int start = getChipStart(chip); 1370 int end = getChipEnd(chip); 1371 if (offset >= start && offset <= end) { 1372 return chip; 1373 } 1374 } 1375 return null; 1376 } 1377 1378 // Visible for testing. 1379 // Use this method to generate text to add to the list of addresses. 1380 /*package*/ String createAddressText(RecipientEntry entry) { 1381 String display = entry.getDisplayName(); 1382 String address = entry.getDestination(); 1383 if (TextUtils.isEmpty(display) || TextUtils.equals(display, address)) { 1384 display = null; 1385 } 1386 if (address != null) { 1387 // Tokenize out the address in case the address already 1388 // contained the username as well. 1389 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(address); 1390 if (tokenized != null && tokenized.length > 0) { 1391 address = tokenized[0].getAddress(); 1392 } 1393 } 1394 Rfc822Token token = new Rfc822Token(display, address, null); 1395 String trimmedDisplayText = token.toString().trim(); 1396 int index = trimmedDisplayText.indexOf(","); 1397 return index < trimmedDisplayText.length() - 1 ? (String) mTokenizer 1398 .terminateToken(trimmedDisplayText) : trimmedDisplayText; 1399 } 1400 1401 // Visible for testing. 1402 // Use this method to generate text to display in a chip. 1403 /*package*/ String createChipDisplayText(RecipientEntry entry) { 1404 String display = entry.getDisplayName(); 1405 String address = entry.getDestination(); 1406 if (TextUtils.isEmpty(display) || TextUtils.equals(display, address)) { 1407 display = null; 1408 } 1409 if (address != null) { 1410 // Tokenize out the address in case the address already 1411 // contained the username as well. 1412 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(address); 1413 if (tokenized != null && tokenized.length > 0) { 1414 address = tokenized[0].getAddress(); 1415 } 1416 } 1417 if (!TextUtils.isEmpty(display)) { 1418 return display; 1419 } else if (!TextUtils.isEmpty(address)){ 1420 return address; 1421 } else { 1422 return new Rfc822Token(display, address, null).toString(); 1423 } 1424 } 1425 1426 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 1427 String displayText = createAddressText(entry); 1428 if (TextUtils.isEmpty(displayText)) { 1429 return null; 1430 } 1431 SpannableString chipText = null; 1432 // Always leave a blank space at the end of a chip. 1433 int end = getSelectionEnd(); 1434 int start = mTokenizer.findTokenStart(getText(), end); 1435 int textLength = displayText.length()-1; 1436 chipText = new SpannableString(displayText); 1437 if (!mNoChips) { 1438 try { 1439 RecipientChip chip = constructChipSpan(entry, start, pressed); 1440 chipText.setSpan(chip, 0, textLength, 1441 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1442 chip.setOriginalText(chipText.toString()); 1443 } catch (NullPointerException e) { 1444 Log.e(TAG, e.getMessage(), e); 1445 return null; 1446 } 1447 } 1448 return chipText; 1449 } 1450 1451 /** 1452 * When an item in the suggestions list has been clicked, create a chip from the 1453 * contact information of the selected item. 1454 */ 1455 @Override 1456 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1457 submitItemAtPosition(position); 1458 } 1459 1460 private void submitItemAtPosition(int position) { 1461 RecipientEntry entry = createValidatedEntry( 1462 (RecipientEntry)getAdapter().getItem(position)); 1463 if (entry == null) { 1464 return; 1465 } 1466 clearComposingText(); 1467 1468 int end = getSelectionEnd(); 1469 int start = mTokenizer.findTokenStart(getText(), end); 1470 1471 Editable editable = getText(); 1472 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1473 CharSequence chip = createChip(entry, false); 1474 if (chip != null && start >= 0 && end >= 0) { 1475 editable.replace(start, end, chip); 1476 } 1477 sanitizeBetween(); 1478 } 1479 1480 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1481 if (item == null) { 1482 return null; 1483 } 1484 final RecipientEntry entry; 1485 // If the display name and the address are the same, or if this is a 1486 // valid contact, but the destination is invalid, then make this a fake 1487 // recipient that is editable. 1488 String destination = item.getDestination(); 1489 if (RecipientEntry.isCreatedRecipient(item.getContactId()) 1490 && (TextUtils.isEmpty(item.getDisplayName()) 1491 || TextUtils.equals(item.getDisplayName(), destination) 1492 || (mValidator != null && !mValidator.isValid(destination)))) { 1493 entry = RecipientEntry.constructFakeEntry(destination); 1494 } else { 1495 entry = item; 1496 } 1497 return entry; 1498 } 1499 1500 /** Returns a collection of contact Id for each chip inside this View. */ 1501 /* package */ Collection<Long> getContactIds() { 1502 final Set<Long> result = new HashSet<Long>(); 1503 RecipientChip[] chips = getSortedRecipients(); 1504 if (chips != null) { 1505 for (RecipientChip chip : chips) { 1506 result.add(chip.getContactId()); 1507 } 1508 } 1509 return result; 1510 } 1511 1512 1513 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1514 /* package */ Collection<Long> getDataIds() { 1515 final Set<Long> result = new HashSet<Long>(); 1516 RecipientChip [] chips = getSortedRecipients(); 1517 if (chips != null) { 1518 for (RecipientChip chip : chips) { 1519 result.add(chip.getDataId()); 1520 } 1521 } 1522 return result; 1523 } 1524 1525 // Visible for testing. 1526 /* package */RecipientChip[] getSortedRecipients() { 1527 RecipientChip[] recips = getSpannable() 1528 .getSpans(0, getText().length(), RecipientChip.class); 1529 ArrayList<RecipientChip> recipientsList = new ArrayList<RecipientChip>(Arrays 1530 .asList(recips)); 1531 final Spannable spannable = getSpannable(); 1532 Collections.sort(recipientsList, new Comparator<RecipientChip>() { 1533 1534 @Override 1535 public int compare(RecipientChip first, RecipientChip second) { 1536 int firstStart = spannable.getSpanStart(first); 1537 int secondStart = spannable.getSpanStart(second); 1538 if (firstStart < secondStart) { 1539 return -1; 1540 } else if (firstStart > secondStart) { 1541 return 1; 1542 } else { 1543 return 0; 1544 } 1545 } 1546 }); 1547 return recipientsList.toArray(new RecipientChip[recipientsList.size()]); 1548 } 1549 1550 @Override 1551 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1552 return false; 1553 } 1554 1555 @Override 1556 public void onDestroyActionMode(ActionMode mode) { 1557 } 1558 1559 @Override 1560 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1561 return false; 1562 } 1563 1564 /** 1565 * No chips are selectable. 1566 */ 1567 @Override 1568 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1569 return false; 1570 } 1571 1572 // Visible for testing. 1573 /* package */ImageSpan getMoreChip() { 1574 MoreImageSpan[] moreSpans = getSpannable().getSpans(0, getText().length(), 1575 MoreImageSpan.class); 1576 return moreSpans != null && moreSpans.length > 0 ? moreSpans[0] : null; 1577 } 1578 1579 private MoreImageSpan createMoreSpan(int count) { 1580 String moreText = String.format(mMoreItem.getText().toString(), count); 1581 TextPaint morePaint = new TextPaint(getPaint()); 1582 morePaint.setTextSize(mMoreItem.getTextSize()); 1583 morePaint.setColor(mMoreItem.getCurrentTextColor()); 1584 int width = (int)morePaint.measureText(moreText) + mMoreItem.getPaddingLeft() 1585 + mMoreItem.getPaddingRight(); 1586 int height = getLineHeight(); 1587 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1588 Canvas canvas = new Canvas(drawable); 1589 int adjustedHeight = height; 1590 Layout layout = getLayout(); 1591 if (layout != null) { 1592 adjustedHeight -= layout.getLineDescent(0); 1593 } 1594 canvas.drawText(moreText, 0, moreText.length(), 0, adjustedHeight, morePaint); 1595 1596 Drawable result = new BitmapDrawable(getResources(), drawable); 1597 result.setBounds(0, 0, width, height); 1598 return new MoreImageSpan(result); 1599 } 1600 1601 // Visible for testing. 1602 /*package*/ void createMoreChipPlainText() { 1603 // Take the first <= CHIP_LIMIT addresses and get to the end of the second one. 1604 Editable text = getText(); 1605 int start = 0; 1606 int end = start; 1607 for (int i = 0; i < CHIP_LIMIT; i++) { 1608 end = movePastTerminators(mTokenizer.findTokenEnd(text, start)); 1609 start = end; // move to the next token and get its end. 1610 } 1611 // Now, count total addresses. 1612 start = 0; 1613 int tokenCount = countTokens(text); 1614 MoreImageSpan moreSpan = createMoreSpan(tokenCount - CHIP_LIMIT); 1615 SpannableString chipText = new SpannableString(text.subSequence(end, text.length())); 1616 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1617 text.replace(end, text.length(), chipText); 1618 mMoreChip = moreSpan; 1619 } 1620 1621 // Visible for testing. 1622 /* package */int countTokens(Editable text) { 1623 int tokenCount = 0; 1624 int start = 0; 1625 while (start < text.length()) { 1626 start = movePastTerminators(mTokenizer.findTokenEnd(text, start)); 1627 tokenCount++; 1628 if (start >= text.length()) { 1629 break; 1630 } 1631 } 1632 return tokenCount; 1633 } 1634 1635 /** 1636 * Create the more chip. The more chip is text that replaces any chips that 1637 * do not fit in the pre-defined available space when the 1638 * RecipientEditTextView loses focus. 1639 */ 1640 // Visible for testing. 1641 /* package */ void createMoreChip() { 1642 if (mNoChips) { 1643 createMoreChipPlainText(); 1644 return; 1645 } 1646 1647 if (!mShouldShrink) { 1648 return; 1649 } 1650 1651 ImageSpan[] tempMore = getSpannable().getSpans(0, getText().length(), MoreImageSpan.class); 1652 if (tempMore.length > 0) { 1653 getSpannable().removeSpan(tempMore[0]); 1654 } 1655 RecipientChip[] recipients = getSortedRecipients(); 1656 1657 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1658 mMoreChip = null; 1659 return; 1660 } 1661 Spannable spannable = getSpannable(); 1662 int numRecipients = recipients.length; 1663 int overage = numRecipients - CHIP_LIMIT; 1664 MoreImageSpan moreSpan = createMoreSpan(overage); 1665 mRemovedSpans = new ArrayList<RecipientChip>(); 1666 int totalReplaceStart = 0; 1667 int totalReplaceEnd = 0; 1668 Editable text = getText(); 1669 for (int i = numRecipients - overage; i < recipients.length; i++) { 1670 mRemovedSpans.add(recipients[i]); 1671 if (i == numRecipients - overage) { 1672 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1673 } 1674 if (i == recipients.length - 1) { 1675 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1676 } 1677 if (mTemporaryRecipients == null || !mTemporaryRecipients.contains(recipients[i])) { 1678 int spanStart = spannable.getSpanStart(recipients[i]); 1679 int spanEnd = spannable.getSpanEnd(recipients[i]); 1680 recipients[i].setOriginalText(text.toString().substring(spanStart, spanEnd)); 1681 } 1682 spannable.removeSpan(recipients[i]); 1683 } 1684 if (totalReplaceEnd < text.length()) { 1685 totalReplaceEnd = text.length(); 1686 } 1687 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1688 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1689 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1690 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1691 text.replace(start, end, chipText); 1692 mMoreChip = moreSpan; 1693 } 1694 1695 /** 1696 * Replace the more chip, if it exists, with all of the recipient chips it had 1697 * replaced when the RecipientEditTextView gains focus. 1698 */ 1699 // Visible for testing. 1700 /*package*/ void removeMoreChip() { 1701 if (mMoreChip != null) { 1702 Spannable span = getSpannable(); 1703 span.removeSpan(mMoreChip); 1704 mMoreChip = null; 1705 // Re-add the spans that were removed. 1706 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1707 // Recreate each removed span. 1708 RecipientChip[] recipients = getSortedRecipients(); 1709 // Start the search for tokens after the last currently visible 1710 // chip. 1711 if (recipients == null || recipients.length == 0) { 1712 return; 1713 } 1714 int end = span.getSpanEnd(recipients[recipients.length - 1]); 1715 Editable editable = getText(); 1716 for (RecipientChip chip : mRemovedSpans) { 1717 int chipStart; 1718 int chipEnd; 1719 String token; 1720 // Need to find the location of the chip, again. 1721 token = (String) chip.getOriginalText(); 1722 // As we find the matching recipient for the remove spans, 1723 // reduce the size of the string we need to search. 1724 // That way, if there are duplicates, we always find the correct 1725 // recipient. 1726 chipStart = editable.toString().indexOf(token, end); 1727 end = chipEnd = Math.min(editable.length(), chipStart + token.length()); 1728 // Only set the span if we found a matching token. 1729 if (chipStart != -1) { 1730 editable.setSpan(chip, chipStart, chipEnd, 1731 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1732 } 1733 } 1734 mRemovedSpans.clear(); 1735 } 1736 } 1737 } 1738 1739 /** 1740 * Show specified chip as selected. If the RecipientChip is just an email address, 1741 * selecting the chip will take the contents of the chip and place it at 1742 * the end of the RecipientEditTextView for inline editing. If the 1743 * RecipientChip is a complete contact, then selecting the chip 1744 * will change the background color of the chip, show the delete icon, 1745 * and a popup window with the address in use highlighted and any other 1746 * alternate addresses for the contact. 1747 * @param currentChip Chip to select. 1748 * @return A RecipientChip in the selected state or null if the chip 1749 * just contained an email address. 1750 */ 1751 private RecipientChip selectChip(RecipientChip currentChip) { 1752 if (currentChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1753 CharSequence text = currentChip.getValue(); 1754 Editable editable = getText(); 1755 removeChip(currentChip); 1756 editable.append(text); 1757 setCursorVisible(true); 1758 setSelection(editable.length()); 1759 return new RecipientChip(null, RecipientEntry.constructFakeEntry((String) text), -1); 1760 } else if (currentChip.getContactId() == RecipientEntry.GENERATED_CONTACT) { 1761 int start = getChipStart(currentChip); 1762 int end = getChipEnd(currentChip); 1763 getSpannable().removeSpan(currentChip); 1764 RecipientChip newChip; 1765 try { 1766 if (mNoChips) { 1767 return null; 1768 } 1769 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1770 } catch (NullPointerException e) { 1771 Log.e(TAG, e.getMessage(), e); 1772 return null; 1773 } 1774 Editable editable = getText(); 1775 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1776 if (start == -1 || end == -1) { 1777 Log.d(TAG, "The chip being selected no longer exists but should."); 1778 } else { 1779 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1780 } 1781 newChip.setSelected(true); 1782 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1783 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1784 } 1785 showAddress(newChip, mAddressPopup, getWidth(), getContext()); 1786 setCursorVisible(false); 1787 return newChip; 1788 } else { 1789 int start = getChipStart(currentChip); 1790 int end = getChipEnd(currentChip); 1791 getSpannable().removeSpan(currentChip); 1792 RecipientChip newChip; 1793 try { 1794 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1795 } catch (NullPointerException e) { 1796 Log.e(TAG, e.getMessage(), e); 1797 return null; 1798 } 1799 Editable editable = getText(); 1800 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1801 if (start == -1 || end == -1) { 1802 Log.d(TAG, "The chip being selected no longer exists but should."); 1803 } else { 1804 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1805 } 1806 newChip.setSelected(true); 1807 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1808 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1809 } 1810 showAlternates(newChip, mAlternatesPopup, getWidth(), getContext()); 1811 setCursorVisible(false); 1812 return newChip; 1813 } 1814 } 1815 1816 1817 private void showAddress(final RecipientChip currentChip, final ListPopupWindow popup, 1818 int width, Context context) { 1819 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1820 int bottom = calculateOffsetFromBottom(line); 1821 // Align the alternates popup with the left side of the View, 1822 // regardless of the position of the chip tapped. 1823 setEnabled(false); 1824 popup.setWidth(width); 1825 popup.setAnchorView(this); 1826 popup.setVerticalOffset(bottom); 1827 popup.setAdapter(createSingleAddressAdapter(currentChip)); 1828 popup.setOnItemClickListener(new OnItemClickListener() { 1829 @Override 1830 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1831 unselectChip(currentChip); 1832 popup.dismiss(); 1833 } 1834 }); 1835 popup.show(); 1836 ListView listView = popup.getListView(); 1837 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1838 listView.setItemChecked(0, true); 1839 } 1840 1841 /** 1842 * Remove selection from this chip. Unselecting a RecipientChip will render 1843 * the chip without a delete icon and with an unfocused background. This is 1844 * called when the RecipientChip no longer has focus. 1845 */ 1846 private void unselectChip(RecipientChip chip) { 1847 int start = getChipStart(chip); 1848 int end = getChipEnd(chip); 1849 Editable editable = getText(); 1850 mSelectedChip = null; 1851 if (start == -1 || end == -1) { 1852 Log.w(TAG, "The chip doesn't exist or may be a chip a user was editing"); 1853 setSelection(editable.length()); 1854 commitDefault(); 1855 } else { 1856 getSpannable().removeSpan(chip); 1857 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1858 editable.removeSpan(chip); 1859 try { 1860 if (!mNoChips) { 1861 editable.setSpan(constructChipSpan(chip.getEntry(), start, false), start, end, 1862 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1863 } 1864 } catch (NullPointerException e) { 1865 Log.e(TAG, e.getMessage(), e); 1866 } 1867 } 1868 setCursorVisible(true); 1869 setSelection(editable.length()); 1870 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1871 mAlternatesPopup.dismiss(); 1872 } 1873 } 1874 1875 /** 1876 * Return whether a touch event was inside the delete target of 1877 * a selected chip. It is in the delete target if: 1878 * 1) the x and y points of the event are within the 1879 * delete assset. 1880 * 2) the point tapped would have caused a cursor to appear 1881 * right after the selected chip. 1882 * @return boolean 1883 */ 1884 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1885 // Figure out the bounds of this chip and whether or not 1886 // the user clicked in the X portion. 1887 return chip.isSelected() && offset == getChipEnd(chip); 1888 } 1889 1890 /** 1891 * Remove the chip and any text associated with it from the RecipientEditTextView. 1892 */ 1893 // Visible for testing. 1894 /*pacakge*/ void removeChip(RecipientChip chip) { 1895 Spannable spannable = getSpannable(); 1896 int spanStart = spannable.getSpanStart(chip); 1897 int spanEnd = spannable.getSpanEnd(chip); 1898 Editable text = getText(); 1899 int toDelete = spanEnd; 1900 boolean wasSelected = chip == mSelectedChip; 1901 // Clear that there is a selected chip before updating any text. 1902 if (wasSelected) { 1903 mSelectedChip = null; 1904 } 1905 // Always remove trailing spaces when removing a chip. 1906 while (toDelete >= 0 && toDelete < text.length() && text.charAt(toDelete) == ' ') { 1907 toDelete++; 1908 } 1909 spannable.removeSpan(chip); 1910 text.delete(spanStart, toDelete); 1911 if (wasSelected) { 1912 clearSelectedChip(); 1913 } 1914 } 1915 1916 /** 1917 * Replace this currently selected chip with a new chip 1918 * that uses the contact data provided. 1919 */ 1920 // Visible for testing. 1921 /*package*/ void replaceChip(RecipientChip chip, RecipientEntry entry) { 1922 boolean wasSelected = chip == mSelectedChip; 1923 if (wasSelected) { 1924 mSelectedChip = null; 1925 } 1926 int start = getChipStart(chip); 1927 int end = getChipEnd(chip); 1928 getSpannable().removeSpan(chip); 1929 Editable editable = getText(); 1930 CharSequence chipText = createChip(entry, false); 1931 if (chipText != null) { 1932 if (start == -1 || end == -1) { 1933 Log.e(TAG, "The chip to replace does not exist but should."); 1934 editable.insert(0, chipText); 1935 } else { 1936 if (!TextUtils.isEmpty(chipText)) { 1937 // There may be a space to replace with this chip's new 1938 // associated 1939 // space. Check for it 1940 int toReplace = end; 1941 while (toReplace >= 0 && toReplace < editable.length() 1942 && editable.charAt(toReplace) == ' ') { 1943 toReplace++; 1944 } 1945 editable.replace(start, toReplace, chipText); 1946 } 1947 } 1948 } 1949 setCursorVisible(true); 1950 if (wasSelected) { 1951 clearSelectedChip(); 1952 } 1953 } 1954 1955 /** 1956 * Handle click events for a chip. When a selected chip receives a click 1957 * event, see if that event was in the delete icon. If so, delete it. 1958 * Otherwise, unselect the chip. 1959 */ 1960 public void onClick(RecipientChip chip, int offset, float x, float y) { 1961 if (chip.isSelected()) { 1962 if (isInDelete(chip, offset, x, y)) { 1963 removeChip(chip); 1964 } else { 1965 clearSelectedChip(); 1966 } 1967 } 1968 } 1969 1970 private boolean chipsPending() { 1971 return mPendingChipsCount > 0 || (mRemovedSpans != null && mRemovedSpans.size() > 0); 1972 } 1973 1974 @Override 1975 public void removeTextChangedListener(TextWatcher watcher) { 1976 mTextWatcher = null; 1977 super.removeTextChangedListener(watcher); 1978 } 1979 1980 private class RecipientTextWatcher implements TextWatcher { 1981 @Override 1982 public void afterTextChanged(Editable s) { 1983 // If the text has been set to null or empty, make sure we remove 1984 // all the spans we applied. 1985 if (TextUtils.isEmpty(s)) { 1986 // Remove all the chips spans. 1987 Spannable spannable = getSpannable(); 1988 RecipientChip[] chips = spannable.getSpans(0, getText().length(), 1989 RecipientChip.class); 1990 for (RecipientChip chip : chips) { 1991 spannable.removeSpan(chip); 1992 } 1993 if (mMoreChip != null) { 1994 spannable.removeSpan(mMoreChip); 1995 } 1996 return; 1997 } 1998 // Get whether there are any recipients pending addition to the 1999 // view. If there are, don't do anything in the text watcher. 2000 if (chipsPending()) { 2001 return; 2002 } 2003 // If the user is editing a chip, don't clear it. 2004 if (mSelectedChip != null 2005 && mSelectedChip.getContactId() != RecipientEntry.INVALID_CONTACT) { 2006 setCursorVisible(true); 2007 setSelection(getText().length()); 2008 clearSelectedChip(); 2009 } 2010 int length = s.length(); 2011 // Make sure there is content there to parse and that it is 2012 // not just the commit character. 2013 if (length > 1) { 2014 char last; 2015 int end = getSelectionEnd() == 0 ? 0 : getSelectionEnd() - 1; 2016 int len = length() - 1; 2017 if (end != len) { 2018 last = s.charAt(end); 2019 } else { 2020 last = s.charAt(len); 2021 } 2022 if (last == COMMIT_CHAR_SEMICOLON || last == COMMIT_CHAR_COMMA) { 2023 commitByCharacter(); 2024 } else if (last == COMMIT_CHAR_SPACE) { 2025 // Check if this is a valid email address. If it is, 2026 // commit it. 2027 String text = getText().toString(); 2028 int tokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 2029 String sub = text.substring(tokenStart, mTokenizer.findTokenEnd(text, 2030 tokenStart)); 2031 if (!TextUtils.isEmpty(sub) && mValidator != null && mValidator.isValid(sub)) { 2032 commitByCharacter(); 2033 } 2034 } 2035 } 2036 } 2037 2038 @Override 2039 public void onTextChanged(CharSequence s, int start, int before, int count) { 2040 // Do nothing. 2041 } 2042 2043 @Override 2044 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 2045 // Do nothing. 2046 } 2047 } 2048 2049 /** 2050 * Handles pasting a {@link ClipData} to this {@link RecipientEditTextView}. 2051 */ 2052 private void handlePasteClip(ClipData clip) { 2053 removeTextChangedListener(mTextWatcher); 2054 2055 if (clip != null && clip.getDescription().hasMimeType(ClipDescription.MIMETYPE_TEXT_PLAIN)){ 2056 for (int i = 0; i < clip.getItemCount(); i++) { 2057 CharSequence paste = clip.getItemAt(i).getText(); 2058 if (paste != null) { 2059 int start = getSelectionStart(); 2060 int end = getSelectionEnd(); 2061 Editable editable = getText(); 2062 if (start >= 0 && end >= 0 && start != end) { 2063 editable.append(paste, start, end); 2064 } else { 2065 editable.insert(end, paste); 2066 } 2067 handlePasteAndReplace(); 2068 } 2069 } 2070 } 2071 2072 mHandler.post(mAddTextWatcher); 2073 } 2074 2075 @Override 2076 public boolean onTextContextMenuItem(int id) { 2077 if (id == android.R.id.paste) { 2078 ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService( 2079 Context.CLIPBOARD_SERVICE); 2080 handlePasteClip(clipboard.getPrimaryClip()); 2081 return true; 2082 } 2083 return super.onTextContextMenuItem(id); 2084 } 2085 2086 private void handlePasteAndReplace() { 2087 ArrayList<RecipientChip> created = handlePaste(); 2088 if (created != null && created.size() > 0) { 2089 // Perform reverse lookups on the pasted contacts. 2090 IndividualReplacementTask replace = new IndividualReplacementTask(); 2091 replace.execute(created); 2092 } 2093 } 2094 2095 // Visible for testing. 2096 /* package */ArrayList<RecipientChip> handlePaste() { 2097 String text = getText().toString(); 2098 int originalTokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 2099 String lastAddress = text.substring(originalTokenStart); 2100 int tokenStart = originalTokenStart; 2101 int prevTokenStart = tokenStart; 2102 RecipientChip findChip = null; 2103 ArrayList<RecipientChip> created = new ArrayList<RecipientChip>(); 2104 if (tokenStart != 0) { 2105 // There are things before this! 2106 while (tokenStart != 0 && findChip == null) { 2107 prevTokenStart = tokenStart; 2108 tokenStart = mTokenizer.findTokenStart(text, tokenStart); 2109 findChip = findChip(tokenStart); 2110 } 2111 if (tokenStart != originalTokenStart) { 2112 if (findChip != null) { 2113 tokenStart = prevTokenStart; 2114 } 2115 int tokenEnd; 2116 RecipientChip createdChip; 2117 while (tokenStart < originalTokenStart) { 2118 tokenEnd = movePastTerminators(mTokenizer.findTokenEnd(text, tokenStart)); 2119 commitChip(tokenStart, tokenEnd, getText()); 2120 createdChip = findChip(tokenStart); 2121 // +1 for the space at the end. 2122 tokenStart = getSpannable().getSpanEnd(createdChip) + 1; 2123 created.add(createdChip); 2124 } 2125 } 2126 } 2127 // Take a look at the last token. If the token has been completed with a 2128 // commit character, create a chip. 2129 if (isCompletedToken(lastAddress)) { 2130 Editable editable = getText(); 2131 tokenStart = editable.toString().indexOf(lastAddress, originalTokenStart); 2132 commitChip(tokenStart, editable.length(), editable); 2133 created.add(findChip(tokenStart)); 2134 } 2135 return created; 2136 } 2137 2138 // Visible for testing. 2139 /* package */int movePastTerminators(int tokenEnd) { 2140 if (tokenEnd >= length()) { 2141 return tokenEnd; 2142 } 2143 char atEnd = getText().toString().charAt(tokenEnd); 2144 if (atEnd == COMMIT_CHAR_COMMA || atEnd == COMMIT_CHAR_SEMICOLON) { 2145 tokenEnd++; 2146 } 2147 // This token had not only an end token character, but also a space 2148 // separating it from the next token. 2149 if (tokenEnd < length() && getText().toString().charAt(tokenEnd) == ' ') { 2150 tokenEnd++; 2151 } 2152 return tokenEnd; 2153 } 2154 2155 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 2156 private RecipientChip createFreeChip(RecipientEntry entry) { 2157 try { 2158 if (mNoChips) { 2159 return null; 2160 } 2161 return constructChipSpan(entry, -1, false); 2162 } catch (NullPointerException e) { 2163 Log.e(TAG, e.getMessage(), e); 2164 return null; 2165 } 2166 } 2167 2168 @Override 2169 protected Void doInBackground(Void... params) { 2170 if (mIndividualReplacements != null) { 2171 mIndividualReplacements.cancel(true); 2172 } 2173 // For each chip in the list, look up the matching contact. 2174 // If there is a match, replace that chip with the matching 2175 // chip. 2176 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 2177 RecipientChip[] existingChips = getSortedRecipients(); 2178 for (int i = 0; i < existingChips.length; i++) { 2179 originalRecipients.add(existingChips[i]); 2180 } 2181 if (mRemovedSpans != null) { 2182 originalRecipients.addAll(mRemovedSpans); 2183 } 2184 String[] addresses = new String[originalRecipients.size()]; 2185 RecipientChip chip; 2186 for (int i = 0; i < originalRecipients.size(); i++) { 2187 chip = originalRecipients.get(i); 2188 if (chip != null) { 2189 addresses[i] = createAddressText(chip.getEntry()); 2190 } 2191 } 2192 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 2193 .getMatchingRecipients(getContext(), addresses); 2194 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 2195 for (final RecipientChip temp : originalRecipients) { 2196 RecipientEntry entry = null; 2197 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 2198 && getSpannable().getSpanStart(temp) != -1) { 2199 // Replace this. 2200 entry = createValidatedEntry(entries.get(tokenizeAddress(temp.getEntry() 2201 .getDestination()))); 2202 } 2203 if (entry != null) { 2204 replacements.add(createFreeChip(entry)); 2205 } else { 2206 replacements.add(temp); 2207 } 2208 } 2209 if (replacements != null && replacements.size() > 0) { 2210 mHandler.post(new Runnable() { 2211 @Override 2212 public void run() { 2213 SpannableStringBuilder text = new SpannableStringBuilder(getText() 2214 .toString()); 2215 Editable oldText = getText(); 2216 int start, end; 2217 int i = 0; 2218 for (RecipientChip chip : originalRecipients) { 2219 start = oldText.getSpanStart(chip); 2220 if (start != -1) { 2221 end = oldText.getSpanEnd(chip); 2222 oldText.removeSpan(chip); 2223 // Leave a spot for the space! 2224 RecipientChip replacement = replacements.get(i); 2225 text.setSpan(replacement, start, end, 2226 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 2227 replacement.setOriginalText(text.toString().substring(start, end)); 2228 } 2229 i++; 2230 } 2231 originalRecipients.clear(); 2232 setText(text); 2233 } 2234 }); 2235 } 2236 return null; 2237 } 2238 } 2239 2240 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 2241 @SuppressWarnings("unchecked") 2242 @Override 2243 protected Void doInBackground(Object... params) { 2244 // For each chip in the list, look up the matching contact. 2245 // If there is a match, replace that chip with the matching 2246 // chip. 2247 final ArrayList<RecipientChip> originalRecipients = 2248 (ArrayList<RecipientChip>) params[0]; 2249 String[] addresses = new String[originalRecipients.size()]; 2250 RecipientChip chip; 2251 for (int i = 0; i < originalRecipients.size(); i++) { 2252 chip = originalRecipients.get(i); 2253 if (chip != null) { 2254 addresses[i] = createAddressText(chip.getEntry()); 2255 } 2256 } 2257 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 2258 .getMatchingRecipients(getContext(), addresses); 2259 for (final RecipientChip temp : originalRecipients) { 2260 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 2261 && getSpannable().getSpanStart(temp) != -1) { 2262 // Replace this. 2263 final RecipientEntry entry = createValidatedEntry(entries 2264 .get(tokenizeAddress(temp.getEntry().getDestination()).toLowerCase())); 2265 if (entry != null) { 2266 mHandler.post(new Runnable() { 2267 @Override 2268 public void run() { 2269 replaceChip(temp, entry); 2270 } 2271 }); 2272 } 2273 } 2274 } 2275 return null; 2276 } 2277 } 2278 2279 2280 /** 2281 * MoreImageSpan is a simple class created for tracking the existence of a 2282 * more chip across activity restarts/ 2283 */ 2284 private class MoreImageSpan extends ImageSpan { 2285 public MoreImageSpan(Drawable b) { 2286 super(b); 2287 } 2288 } 2289 2290 @Override 2291 public boolean onDown(MotionEvent e) { 2292 return false; 2293 } 2294 2295 @Override 2296 public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { 2297 // Do nothing. 2298 return false; 2299 } 2300 2301 @Override 2302 public void onLongPress(MotionEvent event) { 2303 if (mSelectedChip != null) { 2304 return; 2305 } 2306 float x = event.getX(); 2307 float y = event.getY(); 2308 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 2309 RecipientChip currentChip = findChip(offset); 2310 if (currentChip != null) { 2311 if (mDragEnabled) { 2312 // Start drag-and-drop for the selected chip. 2313 startDrag(currentChip); 2314 } else { 2315 // Copy the selected chip email address. 2316 showCopyDialog(currentChip.getEntry().getDestination()); 2317 } 2318 } 2319 } 2320 2321 /** 2322 * Enables drag-and-drop for chips. 2323 */ 2324 public void enableDrag() { 2325 mDragEnabled = true; 2326 } 2327 2328 /** 2329 * Starts drag-and-drop for the selected chip. 2330 */ 2331 private void startDrag(RecipientChip currentChip) { 2332 String address = currentChip.getEntry().getDestination(); 2333 ClipData data = ClipData.newPlainText(address, address + COMMIT_CHAR_COMMA); 2334 2335 // Start drag mode. 2336 startDrag(data, new RecipientChipShadow(currentChip), null, 0); 2337 2338 // Remove the current chip, so drag-and-drop will result in a move. 2339 // TODO (phamm): consider readd this chip if it's dropped outside a target. 2340 removeChip(currentChip); 2341 } 2342 2343 /** 2344 * Handles drag event. 2345 */ 2346 @Override 2347 public boolean onDragEvent(DragEvent event) { 2348 switch (event.getAction()) { 2349 case DragEvent.ACTION_DRAG_STARTED: 2350 // Only handle plain text drag and drop. 2351 return event.getClipDescription().hasMimeType(ClipDescription.MIMETYPE_TEXT_PLAIN); 2352 case DragEvent.ACTION_DRAG_ENTERED: 2353 requestFocus(); 2354 return true; 2355 case DragEvent.ACTION_DROP: 2356 handlePasteClip(event.getClipData()); 2357 return true; 2358 } 2359 return false; 2360 } 2361 2362 /** 2363 * Drag shadow for a {@link RecipientChip}. 2364 */ 2365 private final class RecipientChipShadow extends DragShadowBuilder { 2366 private final RecipientChip mChip; 2367 2368 public RecipientChipShadow(RecipientChip chip) { 2369 mChip = chip; 2370 } 2371 2372 @Override 2373 public void onProvideShadowMetrics(Point shadowSize, Point shadowTouchPoint) { 2374 Rect rect = mChip.getDrawable().getBounds(); 2375 shadowSize.set(rect.width(), rect.height()); 2376 shadowTouchPoint.set(rect.centerX(), rect.centerY()); 2377 } 2378 2379 @Override 2380 public void onDrawShadow(Canvas canvas) { 2381 mChip.getDrawable().draw(canvas); 2382 } 2383 } 2384 2385 private void showCopyDialog(final String address) { 2386 mCopyAddress = address; 2387 mCopyDialog.setTitle(address); 2388 mCopyDialog.setContentView(mCopyViewRes); 2389 mCopyDialog.setCancelable(true); 2390 mCopyDialog.setCanceledOnTouchOutside(true); 2391 mCopyDialog.findViewById(android.R.id.button1).setOnClickListener(this); 2392 mCopyDialog.setOnDismissListener(this); 2393 mCopyDialog.show(); 2394 } 2395 2396 @Override 2397 public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) { 2398 // Do nothing. 2399 return false; 2400 } 2401 2402 @Override 2403 public void onShowPress(MotionEvent e) { 2404 // Do nothing. 2405 } 2406 2407 @Override 2408 public boolean onSingleTapUp(MotionEvent e) { 2409 // Do nothing. 2410 return false; 2411 } 2412 2413 @Override 2414 public void onDismiss(DialogInterface dialog) { 2415 mCopyAddress = null; 2416 } 2417 2418 @Override 2419 public void onClick(View v) { 2420 // Copy this to the clipboard. 2421 ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService( 2422 Context.CLIPBOARD_SERVICE); 2423 clipboard.setPrimaryClip(ClipData.newPlainText("", mCopyAddress)); 2424 mCopyDialog.dismiss(); 2425 } 2426} 2427