RecipientEditTextView.java revision 32aff5f5bdc7c860169e50eacb7120983b3901a8
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.content.res.TypedArray; 28import android.graphics.Bitmap; 29import android.graphics.BitmapFactory; 30import android.graphics.Canvas; 31import android.graphics.Matrix; 32import android.graphics.Point; 33import android.graphics.Rect; 34import android.graphics.RectF; 35import android.graphics.drawable.BitmapDrawable; 36import android.graphics.drawable.Drawable; 37import android.os.AsyncTask; 38import android.os.Handler; 39import android.os.Message; 40import android.os.Parcelable; 41import android.text.Editable; 42import android.text.InputType; 43import android.text.Layout; 44import android.text.Spannable; 45import android.text.SpannableString; 46import android.text.SpannableStringBuilder; 47import android.text.Spanned; 48import android.text.TextPaint; 49import android.text.TextUtils; 50import android.text.TextWatcher; 51import android.text.method.QwertyKeyListener; 52import android.text.style.ImageSpan; 53import android.text.util.Rfc822Token; 54import android.text.util.Rfc822Tokenizer; 55import android.util.AttributeSet; 56import android.util.Log; 57import android.view.ActionMode; 58import android.view.ActionMode.Callback; 59import android.view.DragEvent; 60import android.view.GestureDetector; 61import android.view.KeyEvent; 62import android.view.LayoutInflater; 63import android.view.Menu; 64import android.view.MenuItem; 65import android.view.MotionEvent; 66import android.view.View; 67import android.view.View.OnClickListener; 68import android.view.ViewParent; 69import android.widget.AdapterView; 70import android.widget.AdapterView.OnItemClickListener; 71import android.widget.ListAdapter; 72import android.widget.ListPopupWindow; 73import android.widget.ListView; 74import android.widget.MultiAutoCompleteTextView; 75import android.widget.PopupWindow; 76import android.widget.ScrollView; 77import android.widget.TextView; 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(context, attrs); 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(Context context, AttributeSet attrs) { 599 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.RecipientEditTextView, 0, 600 0); 601 Resources r = getContext().getResources(); 602 mChipBackground = a.getDrawable(R.styleable.RecipientEditTextView_chipBackground); 603 if (mChipBackground == null) { 604 mChipBackground = r.getDrawable(R.drawable.chip_background); 605 } 606 mChipBackgroundPressed = a 607 .getDrawable(R.styleable.RecipientEditTextView_chipBackgroundPressed); 608 if (mChipBackgroundPressed == null) { 609 mChipBackgroundPressed = r.getDrawable(R.drawable.chip_background_selected); 610 } 611 mChipDelete = a.getDrawable(R.styleable.RecipientEditTextView_chipDelete); 612 if (mChipDelete == null) { 613 mChipDelete = r.getDrawable(R.drawable.chip_delete); 614 } 615 mChipPadding = a.getDimensionPixelSize(R.styleable.RecipientEditTextView_chipPadding, -1); 616 if (mChipPadding == -1) { 617 mChipPadding = (int) r.getDimension(R.dimen.chip_padding); 618 } 619 mAlternatesLayout = a.getResourceId(R.styleable.RecipientEditTextView_chipAlternatesLayout, 620 -1); 621 if (mAlternatesLayout == -1) { 622 mAlternatesLayout = R.layout.chips_alternate_item; 623 } 624 625 mDefaultContactPhoto = BitmapFactory.decodeResource(r, R.drawable.ic_contact_picture); 626 627 mMoreItem = (TextView) LayoutInflater.from(getContext()).inflate(R.layout.more_item, null); 628 629 mChipHeight = a.getDimensionPixelSize(R.styleable.RecipientEditTextView_chipHeight, -1); 630 if (mChipHeight == -1) { 631 mChipHeight = r.getDimension(R.dimen.chip_height); 632 } 633 mChipFontSize = a.getDimensionPixelSize(R.styleable.RecipientEditTextView_chipFontSize, -1); 634 if (mChipFontSize == -1) { 635 mChipFontSize = r.getDimension(R.dimen.chip_text_size); 636 } 637 mInvalidChipBackground = a 638 .getDrawable(R.styleable.RecipientEditTextView_invalidChipBackground); 639 if (mInvalidChipBackground == null) { 640 mInvalidChipBackground = r.getDrawable(R.drawable.chip_background_invalid); 641 } 642 } 643 644 // Visible for testing. 645 /* package */ void setMoreItem(TextView moreItem) { 646 mMoreItem = moreItem; 647 } 648 649 650 // Visible for testing. 651 /* package */ void setChipBackground(Drawable chipBackground) { 652 mChipBackground = chipBackground; 653 } 654 655 // Visible for testing. 656 /* package */ void setChipHeight(int height) { 657 mChipHeight = height; 658 } 659 660 /** 661 * Set whether to shrink the recipients field such that at most 662 * one line of recipients chips are shown when the field loses 663 * focus. By default, the number of displayed recipients will be 664 * limited and a "more" chip will be shown when focus is lost. 665 * @param shrink 666 */ 667 public void setOnFocusListShrinkRecipients(boolean shrink) { 668 mShouldShrink = shrink; 669 } 670 671 @Override 672 public void onSizeChanged(int width, int height, int oldw, int oldh) { 673 super.onSizeChanged(width, height, oldw, oldh); 674 if (width != 0 && height != 0) { 675 if (mPendingChipsCount > 0) { 676 postHandlePendingChips(); 677 } else { 678 checkChipWidths(); 679 } 680 } 681 // Try to find the scroll view parent, if it exists. 682 if (mScrollView == null && !mTriedGettingScrollView) { 683 ViewParent parent = getParent(); 684 while (parent != null && !(parent instanceof ScrollView)) { 685 parent = parent.getParent(); 686 } 687 if (parent != null) { 688 mScrollView = (ScrollView) parent; 689 } 690 mTriedGettingScrollView = true; 691 } 692 } 693 694 private void postHandlePendingChips() { 695 mHandler.removeCallbacks(mHandlePendingChips); 696 mHandler.post(mHandlePendingChips); 697 } 698 699 private void checkChipWidths() { 700 // Check the widths of the associated chips. 701 RecipientChip[] chips = getSortedRecipients(); 702 if (chips != null) { 703 Rect bounds; 704 for (RecipientChip chip : chips) { 705 bounds = chip.getDrawable().getBounds(); 706 if (getWidth() > 0 && bounds.right - bounds.left > getWidth()) { 707 // Need to redraw that chip. 708 replaceChip(chip, chip.getEntry()); 709 } 710 } 711 } 712 } 713 714 // Visible for testing. 715 /*package*/ void handlePendingChips() { 716 if (getViewWidth() <= 0) { 717 // The widget has not been sized yet. 718 // This will be called as a result of onSizeChanged 719 // at a later point. 720 return; 721 } 722 if (mPendingChipsCount <= 0) { 723 return; 724 } 725 726 synchronized (mPendingChips) { 727 Editable editable = getText(); 728 // Tokenize! 729 if (mPendingChipsCount <= MAX_CHIPS_PARSED) { 730 for (int i = 0; i < mPendingChips.size(); i++) { 731 String current = mPendingChips.get(i); 732 int tokenStart = editable.toString().indexOf(current); 733 int tokenEnd = tokenStart + current.length(); 734 if (tokenStart >= 0) { 735 // When we have a valid token, include it with the token 736 // to the left. 737 if (tokenEnd < editable.length() - 2 738 && editable.charAt(tokenEnd) == COMMIT_CHAR_COMMA) { 739 tokenEnd++; 740 } 741 createReplacementChip(tokenStart, tokenEnd, editable); 742 } 743 mPendingChipsCount--; 744 } 745 sanitizeEnd(); 746 } else { 747 mNoChips = true; 748 } 749 750 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0 751 && mTemporaryRecipients.size() <= RecipientAlternatesAdapter.MAX_LOOKUPS) { 752 if (hasFocus() || mTemporaryRecipients.size() < CHIP_LIMIT) { 753 new RecipientReplacementTask().execute(); 754 mTemporaryRecipients = null; 755 } else { 756 // Create the "more" chip 757 mIndividualReplacements = new IndividualReplacementTask(); 758 mIndividualReplacements.execute(new ArrayList<RecipientChip>( 759 mTemporaryRecipients.subList(0, CHIP_LIMIT))); 760 761 createMoreChip(); 762 } 763 } else { 764 // There are too many recipients to look up, so just fall back 765 // to showing addresses for all of them. 766 mTemporaryRecipients = null; 767 createMoreChip(); 768 } 769 mPendingChipsCount = 0; 770 mPendingChips.clear(); 771 } 772 } 773 774 // Visible for testing. 775 /*package*/ int getViewWidth() { 776 return getWidth(); 777 } 778 779 /** 780 * Remove any characters after the last valid chip. 781 */ 782 // Visible for testing. 783 /*package*/ void sanitizeEnd() { 784 // Don't sanitize while we are waiting for pending chips to complete. 785 if (mPendingChipsCount > 0) { 786 return; 787 } 788 // Find the last chip; eliminate any commit characters after it. 789 RecipientChip[] chips = getSortedRecipients(); 790 if (chips != null && chips.length > 0) { 791 int end; 792 ImageSpan lastSpan; 793 mMoreChip = getMoreChip(); 794 if (mMoreChip != null) { 795 lastSpan = mMoreChip; 796 } else { 797 lastSpan = getLastChip(); 798 } 799 end = getSpannable().getSpanEnd(lastSpan); 800 Editable editable = getText(); 801 int length = editable.length(); 802 if (length > end) { 803 // See what characters occur after that and eliminate them. 804 if (Log.isLoggable(TAG, Log.DEBUG)) { 805 Log.d(TAG, "There were extra characters after the last tokenizable entry." 806 + editable); 807 } 808 editable.delete(end + 1, length); 809 } 810 } 811 } 812 813 /** 814 * Create a chip that represents just the email address of a recipient. At some later 815 * point, this chip will be attached to a real contact entry, if one exists. 816 */ 817 private void createReplacementChip(int tokenStart, int tokenEnd, Editable editable) { 818 if (alreadyHasChip(tokenStart, tokenEnd)) { 819 // There is already a chip present at this location. 820 // Don't recreate it. 821 return; 822 } 823 String token = editable.toString().substring(tokenStart, tokenEnd); 824 int commitCharIndex = token.trim().lastIndexOf(COMMIT_CHAR_COMMA); 825 if (commitCharIndex == token.length() - 1) { 826 token = token.substring(0, token.length() - 1); 827 } 828 RecipientEntry entry = createTokenizedEntry(token); 829 if (entry != null) { 830 String destText = createAddressText(entry); 831 // Always leave a blank space at the end of a chip. 832 int textLength = destText.length() - 1; 833 SpannableString chipText = new SpannableString(destText); 834 int end = getSelectionEnd(); 835 int start = mTokenizer != null ? mTokenizer.findTokenStart(getText(), end) : 0; 836 RecipientChip chip = null; 837 try { 838 if (!mNoChips) { 839 chip = constructChipSpan(entry, start, false); 840 chipText.setSpan(chip, 0, textLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 841 } 842 } catch (NullPointerException e) { 843 Log.e(TAG, e.getMessage(), e); 844 } 845 editable.replace(tokenStart, tokenEnd, chipText); 846 // Add this chip to the list of entries "to replace" 847 if (chip != null) { 848 if (mTemporaryRecipients == null) { 849 mTemporaryRecipients = new ArrayList<RecipientChip>(); 850 } 851 chip.setOriginalText(chipText.toString()); 852 mTemporaryRecipients.add(chip); 853 } 854 } 855 } 856 857 private RecipientEntry createTokenizedEntry(String token) { 858 if (TextUtils.isEmpty(token)) { 859 return null; 860 } 861 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(token); 862 String display = null; 863 if (isValid(token) && tokens != null && tokens.length > 0) { 864 // If we can get a name from tokenizing, then generate an entry from 865 // this. 866 display = tokens[0].getName(); 867 if (!TextUtils.isEmpty(display)) { 868 return RecipientEntry.constructGeneratedEntry(display, token); 869 } else { 870 display = tokens[0].getAddress(); 871 if (!TextUtils.isEmpty(display)) { 872 return RecipientEntry.constructFakeEntry(display); 873 } 874 } 875 } 876 // Unable to validate the token or to create a valid token from it. 877 // Just create a chip the user can edit. 878 String validatedToken = null; 879 if (mValidator != null && !mValidator.isValid(token)) { 880 // Try fixing up the entry using the validator. 881 validatedToken = mValidator.fixText(token).toString(); 882 if (!TextUtils.isEmpty(validatedToken)) { 883 if (validatedToken.contains(token)) { 884 // protect against the case of a validator with a null domain, 885 // which doesn't add a domain to the token 886 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(validatedToken); 887 if (tokenized.length > 0) { 888 validatedToken = tokenized[0].getAddress(); 889 } 890 } else { 891 // We ran into a case where the token was invalid and removed 892 // by the validator. In this case, just use the original token 893 // and let the user sort out the error chip. 894 validatedToken = null; 895 } 896 } 897 } 898 // Otherwise, fallback to just creating an editable email address chip. 899 return RecipientEntry 900 .constructFakeEntry(!TextUtils.isEmpty(validatedToken) ? validatedToken : token); 901 } 902 903 private boolean isValid(String text) { 904 return mValidator == null ? true : mValidator.isValid(text); 905 } 906 907 private String tokenizeAddress(String destination) { 908 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(destination); 909 if (tokens != null && tokens.length > 0) { 910 return tokens[0].getAddress(); 911 } 912 return destination; 913 } 914 915 @Override 916 public void setTokenizer(Tokenizer tokenizer) { 917 mTokenizer = tokenizer; 918 super.setTokenizer(mTokenizer); 919 } 920 921 @Override 922 public void setValidator(Validator validator) { 923 mValidator = validator; 924 super.setValidator(validator); 925 } 926 927 /** 928 * We cannot use the default mechanism for replaceText. Instead, 929 * we override onItemClickListener so we can get all the associated 930 * contact information including display text, address, and id. 931 */ 932 @Override 933 protected void replaceText(CharSequence text) { 934 return; 935 } 936 937 /** 938 * Dismiss any selected chips when the back key is pressed. 939 */ 940 @Override 941 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 942 if (keyCode == KeyEvent.KEYCODE_BACK) { 943 clearSelectedChip(); 944 } 945 return super.onKeyPreIme(keyCode, event); 946 } 947 948 /** 949 * Monitor key presses in this view to see if the user types 950 * any commit keys, which consist of ENTER, TAB, or DPAD_CENTER. 951 * If the user has entered text that has contact matches and types 952 * a commit key, create a chip from the topmost matching contact. 953 * If the user has entered text that has no contact matches and types 954 * a commit key, then create a chip from the text they have entered. 955 */ 956 @Override 957 public boolean onKeyUp(int keyCode, KeyEvent event) { 958 switch (keyCode) { 959 case KeyEvent.KEYCODE_ENTER: 960 case KeyEvent.KEYCODE_DPAD_CENTER: 961 if (event.hasNoModifiers()) { 962 if (commitDefault()) { 963 return true; 964 } 965 if (mSelectedChip != null) { 966 clearSelectedChip(); 967 return true; 968 } else if (focusNext()) { 969 return true; 970 } 971 } 972 break; 973 case KeyEvent.KEYCODE_TAB: 974 if (event.hasNoModifiers()) { 975 if (mSelectedChip != null) { 976 clearSelectedChip(); 977 } else { 978 commitDefault(); 979 } 980 if (focusNext()) { 981 return true; 982 } 983 } 984 } 985 return super.onKeyUp(keyCode, event); 986 } 987 988 private boolean focusNext() { 989 View next = focusSearch(View.FOCUS_DOWN); 990 if (next != null) { 991 next.requestFocus(); 992 return true; 993 } 994 return false; 995 } 996 997 /** 998 * Create a chip from the default selection. If the popup is showing, the 999 * default is the first item in the popup suggestions list. Otherwise, it is 1000 * whatever the user had typed in. End represents where the the tokenizer 1001 * should search for a token to turn into a chip. 1002 * @return If a chip was created from a real contact. 1003 */ 1004 private boolean commitDefault() { 1005 Editable editable = getText(); 1006 int end = getSelectionEnd(); 1007 int start = mTokenizer.findTokenStart(editable, end); 1008 1009 if (shouldCreateChip(start, end)) { 1010 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 1011 // In the middle of chip; treat this as an edit 1012 // and commit the whole token. 1013 if (whatEnd != getSelectionEnd()) { 1014 handleEdit(start, whatEnd); 1015 return true; 1016 } 1017 return commitChip(start, end , editable); 1018 } 1019 return false; 1020 } 1021 1022 private void commitByCharacter() { 1023 Editable editable = getText(); 1024 int end = getSelectionEnd(); 1025 int start = mTokenizer.findTokenStart(editable, end); 1026 if (shouldCreateChip(start, end)) { 1027 commitChip(start, end, editable); 1028 } 1029 setSelection(getText().length()); 1030 } 1031 1032 private boolean commitChip(int start, int end, Editable editable) { 1033 ListAdapter adapter = getAdapter(); 1034 if (adapter != null && adapter.getCount() > 0 && enoughToFilter() 1035 && end == getSelectionEnd()) { 1036 // choose the first entry. 1037 submitItemAtPosition(0); 1038 dismissDropDown(); 1039 return true; 1040 } else { 1041 int tokenEnd = mTokenizer.findTokenEnd(editable, start); 1042 if (editable.length() > tokenEnd + 1) { 1043 char charAt = editable.charAt(tokenEnd + 1); 1044 if (charAt == COMMIT_CHAR_COMMA || charAt == COMMIT_CHAR_SEMICOLON) { 1045 tokenEnd++; 1046 } 1047 } 1048 String text = editable.toString().substring(start, tokenEnd).trim(); 1049 clearComposingText(); 1050 if (text != null && text.length() > 0 && !text.equals(" ")) { 1051 RecipientEntry entry = createTokenizedEntry(text); 1052 if (entry != null) { 1053 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1054 CharSequence chipText = createChip(entry, false); 1055 if (chipText != null && start > -1 && end > -1) { 1056 editable.replace(start, end, chipText); 1057 } 1058 } 1059 // Only dismiss the dropdown if it is related to the text we 1060 // just committed. 1061 // For paste, it may not be as there are possibly multiple 1062 // tokens being added. 1063 if (end == getSelectionEnd()) { 1064 dismissDropDown(); 1065 } 1066 sanitizeBetween(); 1067 return true; 1068 } 1069 } 1070 return false; 1071 } 1072 1073 // Visible for testing. 1074 /* package */ void sanitizeBetween() { 1075 // Don't sanitize while we are waiting for content to chipify. 1076 if (mPendingChipsCount > 0) { 1077 return; 1078 } 1079 // Find the last chip. 1080 RecipientChip[] recips = getSortedRecipients(); 1081 if (recips != null && recips.length > 0) { 1082 RecipientChip last = recips[recips.length - 1]; 1083 RecipientChip beforeLast = null; 1084 if (recips.length > 1) { 1085 beforeLast = recips[recips.length - 2]; 1086 } 1087 int startLooking = 0; 1088 int end = getSpannable().getSpanStart(last); 1089 if (beforeLast != null) { 1090 startLooking = getSpannable().getSpanEnd(beforeLast); 1091 Editable text = getText(); 1092 if (startLooking == -1 || startLooking > text.length() - 1) { 1093 // There is nothing after this chip. 1094 return; 1095 } 1096 if (text.charAt(startLooking) == ' ') { 1097 startLooking++; 1098 } 1099 } 1100 if (startLooking >= 0 && end >= 0 && startLooking < end) { 1101 getText().delete(startLooking, end); 1102 } 1103 } 1104 } 1105 1106 private boolean shouldCreateChip(int start, int end) { 1107 return !mNoChips && hasFocus() && enoughToFilter() && !alreadyHasChip(start, end); 1108 } 1109 1110 private boolean alreadyHasChip(int start, int end) { 1111 if (mNoChips) { 1112 return true; 1113 } 1114 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 1115 if ((chips == null || chips.length == 0)) { 1116 return false; 1117 } 1118 return true; 1119 } 1120 1121 private void handleEdit(int start, int end) { 1122 if (start == -1 || end == -1) { 1123 // This chip no longer exists in the field. 1124 dismissDropDown(); 1125 return; 1126 } 1127 // This is in the middle of a chip, so select out the whole chip 1128 // and commit it. 1129 Editable editable = getText(); 1130 setSelection(end); 1131 String text = getText().toString().substring(start, end); 1132 if (!TextUtils.isEmpty(text)) { 1133 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 1134 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1135 CharSequence chipText = createChip(entry, false); 1136 int selEnd = getSelectionEnd(); 1137 if (chipText != null && start > -1 && selEnd > -1) { 1138 editable.replace(start, selEnd, chipText); 1139 } 1140 } 1141 dismissDropDown(); 1142 } 1143 1144 /** 1145 * If there is a selected chip, delegate the key events 1146 * to the selected chip. 1147 */ 1148 @Override 1149 public boolean onKeyDown(int keyCode, KeyEvent event) { 1150 if (mSelectedChip != null && keyCode == KeyEvent.KEYCODE_DEL) { 1151 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1152 mAlternatesPopup.dismiss(); 1153 } 1154 removeChip(mSelectedChip); 1155 } 1156 1157 if (keyCode == KeyEvent.KEYCODE_ENTER && event.hasNoModifiers()) { 1158 return true; 1159 } 1160 1161 return super.onKeyDown(keyCode, event); 1162 } 1163 1164 // Visible for testing. 1165 /* package */ Spannable getSpannable() { 1166 return getText(); 1167 } 1168 1169 private int getChipStart(RecipientChip chip) { 1170 return getSpannable().getSpanStart(chip); 1171 } 1172 1173 private int getChipEnd(RecipientChip chip) { 1174 return getSpannable().getSpanEnd(chip); 1175 } 1176 1177 /** 1178 * Instead of filtering on the entire contents of the edit box, 1179 * this subclass method filters on the range from 1180 * {@link Tokenizer#findTokenStart} to {@link #getSelectionEnd} 1181 * if the length of that range meets or exceeds {@link #getThreshold} 1182 * and makes sure that the range is not already a Chip. 1183 */ 1184 @Override 1185 protected void performFiltering(CharSequence text, int keyCode) { 1186 if (enoughToFilter() && !isCompletedToken(text)) { 1187 int end = getSelectionEnd(); 1188 int start = mTokenizer.findTokenStart(text, end); 1189 // If this is a RecipientChip, don't filter 1190 // on its contents. 1191 Spannable span = getSpannable(); 1192 RecipientChip[] chips = span.getSpans(start, end, RecipientChip.class); 1193 if (chips != null && chips.length > 0) { 1194 return; 1195 } 1196 } 1197 super.performFiltering(text, keyCode); 1198 } 1199 1200 // Visible for testing. 1201 /*package*/ boolean isCompletedToken(CharSequence text) { 1202 if (TextUtils.isEmpty(text)) { 1203 return false; 1204 } 1205 // Check to see if this is a completed token before filtering. 1206 int end = text.length(); 1207 int start = mTokenizer.findTokenStart(text, end); 1208 String token = text.toString().substring(start, end).trim(); 1209 if (!TextUtils.isEmpty(token)) { 1210 char atEnd = token.charAt(token.length() - 1); 1211 return atEnd == COMMIT_CHAR_COMMA || atEnd == COMMIT_CHAR_SEMICOLON; 1212 } 1213 return false; 1214 } 1215 1216 private void clearSelectedChip() { 1217 if (mSelectedChip != null) { 1218 unselectChip(mSelectedChip); 1219 mSelectedChip = null; 1220 } 1221 setCursorVisible(true); 1222 } 1223 1224 /** 1225 * Monitor touch events in the RecipientEditTextView. 1226 * If the view does not have focus, any tap on the view 1227 * will just focus the view. If the view has focus, determine 1228 * if the touch target is a recipient chip. If it is and the chip 1229 * is not selected, select it and clear any other selected chips. 1230 * If it isn't, then select that chip. 1231 */ 1232 @Override 1233 public boolean onTouchEvent(MotionEvent event) { 1234 if (!isFocused()) { 1235 // Ignore any chip taps until this view is focused. 1236 return super.onTouchEvent(event); 1237 } 1238 boolean handled = super.onTouchEvent(event); 1239 int action = event.getAction(); 1240 boolean chipWasSelected = false; 1241 if (mSelectedChip == null) { 1242 mGestureDetector.onTouchEvent(event); 1243 } 1244 if (mCopyAddress == null && action == MotionEvent.ACTION_UP) { 1245 float x = event.getX(); 1246 float y = event.getY(); 1247 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 1248 RecipientChip currentChip = findChip(offset); 1249 if (currentChip != null) { 1250 if (action == MotionEvent.ACTION_UP) { 1251 if (mSelectedChip != null && mSelectedChip != currentChip) { 1252 clearSelectedChip(); 1253 mSelectedChip = selectChip(currentChip); 1254 } else if (mSelectedChip == null) { 1255 setSelection(getText().length()); 1256 commitDefault(); 1257 mSelectedChip = selectChip(currentChip); 1258 } else { 1259 onClick(mSelectedChip, offset, x, y); 1260 } 1261 } 1262 chipWasSelected = true; 1263 handled = true; 1264 } else if (mSelectedChip != null 1265 && mSelectedChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1266 chipWasSelected = true; 1267 } 1268 } 1269 if (action == MotionEvent.ACTION_UP && !chipWasSelected) { 1270 clearSelectedChip(); 1271 } 1272 return handled; 1273 } 1274 1275 private void scrollLineIntoView(int line) { 1276 if (mScrollView != null) { 1277 mScrollView.scrollBy(0, calculateOffsetFromBottom(line)); 1278 } 1279 } 1280 1281 private void showAlternates(RecipientChip currentChip, ListPopupWindow alternatesPopup, 1282 int width, Context context) { 1283 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1284 int bottom = calculateOffsetFromBottom(line); 1285 // Align the alternates popup with the left side of the View, 1286 // regardless of the position of the chip tapped. 1287 alternatesPopup.setWidth(width); 1288 setEnabled(false); 1289 alternatesPopup.setAnchorView(this); 1290 alternatesPopup.setVerticalOffset(bottom); 1291 alternatesPopup.setAdapter(createAlternatesAdapter(currentChip)); 1292 alternatesPopup.setOnItemClickListener(mAlternatesListener); 1293 // Clear the checked item. 1294 mCheckedItem = -1; 1295 alternatesPopup.show(); 1296 ListView listView = alternatesPopup.getListView(); 1297 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1298 // Checked item would be -1 if the adapter has not 1299 // loaded the view that should be checked yet. The 1300 // variable will be set correctly when onCheckedItemChanged 1301 // is called in a separate thread. 1302 if (mCheckedItem != -1) { 1303 listView.setItemChecked(mCheckedItem, true); 1304 mCheckedItem = -1; 1305 } 1306 } 1307 1308 // Dismiss listener for alterns and single address popup. 1309 @Override 1310 public void onDismiss() { 1311 setEnabled(true); 1312 } 1313 1314 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 1315 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 1316 mAlternatesLayout, this); 1317 } 1318 1319 private ListAdapter createSingleAddressAdapter(RecipientChip currentChip) { 1320 return new SingleRecipientArrayAdapter(getContext(), mAlternatesLayout, currentChip 1321 .getEntry()); 1322 } 1323 1324 @Override 1325 public void onCheckedItemChanged(int position) { 1326 ListView listView = mAlternatesPopup.getListView(); 1327 if (listView != null && listView.getCheckedItemCount() == 0) { 1328 listView.setItemChecked(position, true); 1329 } 1330 mCheckedItem = position; 1331 } 1332 1333 // TODO: This algorithm will need a lot of tweaking after more people have used 1334 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 1335 // what comes before the finger. 1336 private int putOffsetInRange(int o) { 1337 int offset = o; 1338 Editable text = getText(); 1339 int length = text.length(); 1340 // Remove whitespace from end to find "real end" 1341 int realLength = length; 1342 for (int i = length - 1; i >= 0; i--) { 1343 if (text.charAt(i) == ' ') { 1344 realLength--; 1345 } else { 1346 break; 1347 } 1348 } 1349 1350 // If the offset is beyond or at the end of the text, 1351 // leave it alone. 1352 if (offset >= realLength) { 1353 return offset; 1354 } 1355 Editable editable = getText(); 1356 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 1357 // Keep walking backward! 1358 offset--; 1359 } 1360 return offset; 1361 } 1362 1363 private int findText(Editable text, int offset) { 1364 if (text.charAt(offset) != ' ') { 1365 return offset; 1366 } 1367 return -1; 1368 } 1369 1370 private RecipientChip findChip(int offset) { 1371 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1372 // Find the chip that contains this offset. 1373 for (int i = 0; i < chips.length; i++) { 1374 RecipientChip chip = chips[i]; 1375 int start = getChipStart(chip); 1376 int end = getChipEnd(chip); 1377 if (offset >= start && offset <= end) { 1378 return chip; 1379 } 1380 } 1381 return null; 1382 } 1383 1384 // Visible for testing. 1385 // Use this method to generate text to add to the list of addresses. 1386 /* package */String createAddressText(RecipientEntry entry) { 1387 String display = entry.getDisplayName(); 1388 String address = entry.getDestination(); 1389 if (TextUtils.isEmpty(display) || TextUtils.equals(display, address)) { 1390 display = null; 1391 } 1392 if (address != null) { 1393 // Tokenize out the address in case the address already 1394 // contained the username as well. 1395 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(address); 1396 if (tokenized != null && tokenized.length > 0) { 1397 address = tokenized[0].getAddress(); 1398 } 1399 } 1400 Rfc822Token token = new Rfc822Token(display, address, null); 1401 String trimmedDisplayText = token.toString().trim(); 1402 int index = trimmedDisplayText.indexOf(","); 1403 return mTokenizer != null && !TextUtils.isEmpty(trimmedDisplayText) 1404 && index < trimmedDisplayText.length() - 1 ? (String) mTokenizer 1405 .terminateToken(trimmedDisplayText) : trimmedDisplayText; 1406 } 1407 1408 // Visible for testing. 1409 // Use this method to generate text to display in a chip. 1410 /*package*/ String createChipDisplayText(RecipientEntry entry) { 1411 String display = entry.getDisplayName(); 1412 String address = entry.getDestination(); 1413 if (TextUtils.isEmpty(display) || TextUtils.equals(display, address)) { 1414 display = null; 1415 } 1416 if (address != null) { 1417 // Tokenize out the address in case the address already 1418 // contained the username as well. 1419 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(address); 1420 if (tokenized != null && tokenized.length > 0) { 1421 address = tokenized[0].getAddress(); 1422 } 1423 } 1424 if (!TextUtils.isEmpty(display)) { 1425 return display; 1426 } else if (!TextUtils.isEmpty(address)){ 1427 return address; 1428 } else { 1429 return new Rfc822Token(display, address, null).toString(); 1430 } 1431 } 1432 1433 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 1434 String displayText = createAddressText(entry); 1435 if (TextUtils.isEmpty(displayText)) { 1436 return null; 1437 } 1438 SpannableString chipText = null; 1439 // Always leave a blank space at the end of a chip. 1440 int end = getSelectionEnd(); 1441 int start = mTokenizer.findTokenStart(getText(), end); 1442 int textLength = displayText.length()-1; 1443 chipText = new SpannableString(displayText); 1444 if (!mNoChips) { 1445 try { 1446 RecipientChip chip = constructChipSpan(entry, start, pressed); 1447 chipText.setSpan(chip, 0, textLength, 1448 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1449 chip.setOriginalText(chipText.toString()); 1450 } catch (NullPointerException e) { 1451 Log.e(TAG, e.getMessage(), e); 1452 return null; 1453 } 1454 } 1455 return chipText; 1456 } 1457 1458 /** 1459 * When an item in the suggestions list has been clicked, create a chip from the 1460 * contact information of the selected item. 1461 */ 1462 @Override 1463 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1464 submitItemAtPosition(position); 1465 } 1466 1467 private void submitItemAtPosition(int position) { 1468 RecipientEntry entry = createValidatedEntry( 1469 (RecipientEntry)getAdapter().getItem(position)); 1470 if (entry == null) { 1471 return; 1472 } 1473 clearComposingText(); 1474 1475 int end = getSelectionEnd(); 1476 int start = mTokenizer.findTokenStart(getText(), end); 1477 1478 Editable editable = getText(); 1479 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1480 CharSequence chip = createChip(entry, false); 1481 if (chip != null && start >= 0 && end >= 0) { 1482 editable.replace(start, end, chip); 1483 } 1484 sanitizeBetween(); 1485 } 1486 1487 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1488 if (item == null) { 1489 return null; 1490 } 1491 final RecipientEntry entry; 1492 // If the display name and the address are the same, or if this is a 1493 // valid contact, but the destination is invalid, then make this a fake 1494 // recipient that is editable. 1495 String destination = item.getDestination(); 1496 if (RecipientEntry.isCreatedRecipient(item.getContactId()) 1497 && (TextUtils.isEmpty(item.getDisplayName()) 1498 || TextUtils.equals(item.getDisplayName(), destination) 1499 || (mValidator != null && !mValidator.isValid(destination)))) { 1500 entry = RecipientEntry.constructFakeEntry(destination); 1501 } else { 1502 entry = item; 1503 } 1504 return entry; 1505 } 1506 1507 /** Returns a collection of contact Id for each chip inside this View. */ 1508 /* package */ Collection<Long> getContactIds() { 1509 final Set<Long> result = new HashSet<Long>(); 1510 RecipientChip[] chips = getSortedRecipients(); 1511 if (chips != null) { 1512 for (RecipientChip chip : chips) { 1513 result.add(chip.getContactId()); 1514 } 1515 } 1516 return result; 1517 } 1518 1519 1520 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1521 /* package */ Collection<Long> getDataIds() { 1522 final Set<Long> result = new HashSet<Long>(); 1523 RecipientChip [] chips = getSortedRecipients(); 1524 if (chips != null) { 1525 for (RecipientChip chip : chips) { 1526 result.add(chip.getDataId()); 1527 } 1528 } 1529 return result; 1530 } 1531 1532 // Visible for testing. 1533 /* package */RecipientChip[] getSortedRecipients() { 1534 RecipientChip[] recips = getSpannable() 1535 .getSpans(0, getText().length(), RecipientChip.class); 1536 ArrayList<RecipientChip> recipientsList = new ArrayList<RecipientChip>(Arrays 1537 .asList(recips)); 1538 final Spannable spannable = getSpannable(); 1539 Collections.sort(recipientsList, new Comparator<RecipientChip>() { 1540 1541 @Override 1542 public int compare(RecipientChip first, RecipientChip second) { 1543 int firstStart = spannable.getSpanStart(first); 1544 int secondStart = spannable.getSpanStart(second); 1545 if (firstStart < secondStart) { 1546 return -1; 1547 } else if (firstStart > secondStart) { 1548 return 1; 1549 } else { 1550 return 0; 1551 } 1552 } 1553 }); 1554 return recipientsList.toArray(new RecipientChip[recipientsList.size()]); 1555 } 1556 1557 @Override 1558 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1559 return false; 1560 } 1561 1562 @Override 1563 public void onDestroyActionMode(ActionMode mode) { 1564 } 1565 1566 @Override 1567 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1568 return false; 1569 } 1570 1571 /** 1572 * No chips are selectable. 1573 */ 1574 @Override 1575 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1576 return false; 1577 } 1578 1579 // Visible for testing. 1580 /* package */ImageSpan getMoreChip() { 1581 MoreImageSpan[] moreSpans = getSpannable().getSpans(0, getText().length(), 1582 MoreImageSpan.class); 1583 return moreSpans != null && moreSpans.length > 0 ? moreSpans[0] : null; 1584 } 1585 1586 private MoreImageSpan createMoreSpan(int count) { 1587 String moreText = String.format(mMoreItem.getText().toString(), count); 1588 TextPaint morePaint = new TextPaint(getPaint()); 1589 morePaint.setTextSize(mMoreItem.getTextSize()); 1590 morePaint.setColor(mMoreItem.getCurrentTextColor()); 1591 int width = (int)morePaint.measureText(moreText) + mMoreItem.getPaddingLeft() 1592 + mMoreItem.getPaddingRight(); 1593 int height = getLineHeight(); 1594 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1595 Canvas canvas = new Canvas(drawable); 1596 int adjustedHeight = height; 1597 Layout layout = getLayout(); 1598 if (layout != null) { 1599 adjustedHeight -= layout.getLineDescent(0); 1600 } 1601 canvas.drawText(moreText, 0, moreText.length(), 0, adjustedHeight, morePaint); 1602 1603 Drawable result = new BitmapDrawable(getResources(), drawable); 1604 result.setBounds(0, 0, width, height); 1605 return new MoreImageSpan(result); 1606 } 1607 1608 // Visible for testing. 1609 /*package*/ void createMoreChipPlainText() { 1610 // Take the first <= CHIP_LIMIT addresses and get to the end of the second one. 1611 Editable text = getText(); 1612 int start = 0; 1613 int end = start; 1614 for (int i = 0; i < CHIP_LIMIT; i++) { 1615 end = movePastTerminators(mTokenizer.findTokenEnd(text, start)); 1616 start = end; // move to the next token and get its end. 1617 } 1618 // Now, count total addresses. 1619 start = 0; 1620 int tokenCount = countTokens(text); 1621 MoreImageSpan moreSpan = createMoreSpan(tokenCount - CHIP_LIMIT); 1622 SpannableString chipText = new SpannableString(text.subSequence(end, text.length())); 1623 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1624 text.replace(end, text.length(), chipText); 1625 mMoreChip = moreSpan; 1626 } 1627 1628 // Visible for testing. 1629 /* package */int countTokens(Editable text) { 1630 int tokenCount = 0; 1631 int start = 0; 1632 while (start < text.length()) { 1633 start = movePastTerminators(mTokenizer.findTokenEnd(text, start)); 1634 tokenCount++; 1635 if (start >= text.length()) { 1636 break; 1637 } 1638 } 1639 return tokenCount; 1640 } 1641 1642 /** 1643 * Create the more chip. The more chip is text that replaces any chips that 1644 * do not fit in the pre-defined available space when the 1645 * RecipientEditTextView loses focus. 1646 */ 1647 // Visible for testing. 1648 /* package */ void createMoreChip() { 1649 if (mNoChips) { 1650 createMoreChipPlainText(); 1651 return; 1652 } 1653 1654 if (!mShouldShrink) { 1655 return; 1656 } 1657 1658 ImageSpan[] tempMore = getSpannable().getSpans(0, getText().length(), MoreImageSpan.class); 1659 if (tempMore.length > 0) { 1660 getSpannable().removeSpan(tempMore[0]); 1661 } 1662 RecipientChip[] recipients = getSortedRecipients(); 1663 1664 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1665 mMoreChip = null; 1666 return; 1667 } 1668 Spannable spannable = getSpannable(); 1669 int numRecipients = recipients.length; 1670 int overage = numRecipients - CHIP_LIMIT; 1671 MoreImageSpan moreSpan = createMoreSpan(overage); 1672 mRemovedSpans = new ArrayList<RecipientChip>(); 1673 int totalReplaceStart = 0; 1674 int totalReplaceEnd = 0; 1675 Editable text = getText(); 1676 for (int i = numRecipients - overage; i < recipients.length; i++) { 1677 mRemovedSpans.add(recipients[i]); 1678 if (i == numRecipients - overage) { 1679 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1680 } 1681 if (i == recipients.length - 1) { 1682 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1683 } 1684 if (mTemporaryRecipients == null || !mTemporaryRecipients.contains(recipients[i])) { 1685 int spanStart = spannable.getSpanStart(recipients[i]); 1686 int spanEnd = spannable.getSpanEnd(recipients[i]); 1687 recipients[i].setOriginalText(text.toString().substring(spanStart, spanEnd)); 1688 } 1689 spannable.removeSpan(recipients[i]); 1690 } 1691 if (totalReplaceEnd < text.length()) { 1692 totalReplaceEnd = text.length(); 1693 } 1694 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1695 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1696 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1697 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1698 text.replace(start, end, chipText); 1699 mMoreChip = moreSpan; 1700 } 1701 1702 /** 1703 * Replace the more chip, if it exists, with all of the recipient chips it had 1704 * replaced when the RecipientEditTextView gains focus. 1705 */ 1706 // Visible for testing. 1707 /*package*/ void removeMoreChip() { 1708 if (mMoreChip != null) { 1709 Spannable span = getSpannable(); 1710 span.removeSpan(mMoreChip); 1711 mMoreChip = null; 1712 // Re-add the spans that were removed. 1713 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1714 // Recreate each removed span. 1715 RecipientChip[] recipients = getSortedRecipients(); 1716 // Start the search for tokens after the last currently visible 1717 // chip. 1718 if (recipients == null || recipients.length == 0) { 1719 return; 1720 } 1721 int end = span.getSpanEnd(recipients[recipients.length - 1]); 1722 Editable editable = getText(); 1723 for (RecipientChip chip : mRemovedSpans) { 1724 int chipStart; 1725 int chipEnd; 1726 String token; 1727 // Need to find the location of the chip, again. 1728 token = (String) chip.getOriginalText(); 1729 // As we find the matching recipient for the remove spans, 1730 // reduce the size of the string we need to search. 1731 // That way, if there are duplicates, we always find the correct 1732 // recipient. 1733 chipStart = editable.toString().indexOf(token, end); 1734 end = chipEnd = Math.min(editable.length(), chipStart + token.length()); 1735 // Only set the span if we found a matching token. 1736 if (chipStart != -1) { 1737 editable.setSpan(chip, chipStart, chipEnd, 1738 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1739 } 1740 } 1741 mRemovedSpans.clear(); 1742 } 1743 } 1744 } 1745 1746 /** 1747 * Show specified chip as selected. If the RecipientChip is just an email address, 1748 * selecting the chip will take the contents of the chip and place it at 1749 * the end of the RecipientEditTextView for inline editing. If the 1750 * RecipientChip is a complete contact, then selecting the chip 1751 * will change the background color of the chip, show the delete icon, 1752 * and a popup window with the address in use highlighted and any other 1753 * alternate addresses for the contact. 1754 * @param currentChip Chip to select. 1755 * @return A RecipientChip in the selected state or null if the chip 1756 * just contained an email address. 1757 */ 1758 private RecipientChip selectChip(RecipientChip currentChip) { 1759 if (currentChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1760 CharSequence text = currentChip.getValue(); 1761 Editable editable = getText(); 1762 removeChip(currentChip); 1763 editable.append(text); 1764 setCursorVisible(true); 1765 setSelection(editable.length()); 1766 return new RecipientChip(null, RecipientEntry.constructFakeEntry((String) text), -1); 1767 } else if (currentChip.getContactId() == RecipientEntry.GENERATED_CONTACT) { 1768 int start = getChipStart(currentChip); 1769 int end = getChipEnd(currentChip); 1770 getSpannable().removeSpan(currentChip); 1771 RecipientChip newChip; 1772 try { 1773 if (mNoChips) { 1774 return null; 1775 } 1776 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1777 } catch (NullPointerException e) { 1778 Log.e(TAG, e.getMessage(), e); 1779 return null; 1780 } 1781 Editable editable = getText(); 1782 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1783 if (start == -1 || end == -1) { 1784 Log.d(TAG, "The chip being selected no longer exists but should."); 1785 } else { 1786 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1787 } 1788 newChip.setSelected(true); 1789 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1790 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1791 } 1792 showAddress(newChip, mAddressPopup, getWidth(), getContext()); 1793 setCursorVisible(false); 1794 return newChip; 1795 } else { 1796 int start = getChipStart(currentChip); 1797 int end = getChipEnd(currentChip); 1798 getSpannable().removeSpan(currentChip); 1799 RecipientChip newChip; 1800 try { 1801 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1802 } catch (NullPointerException e) { 1803 Log.e(TAG, e.getMessage(), e); 1804 return null; 1805 } 1806 Editable editable = getText(); 1807 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1808 if (start == -1 || end == -1) { 1809 Log.d(TAG, "The chip being selected no longer exists but should."); 1810 } else { 1811 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1812 } 1813 newChip.setSelected(true); 1814 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1815 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1816 } 1817 showAlternates(newChip, mAlternatesPopup, getWidth(), getContext()); 1818 setCursorVisible(false); 1819 return newChip; 1820 } 1821 } 1822 1823 1824 private void showAddress(final RecipientChip currentChip, final ListPopupWindow popup, 1825 int width, Context context) { 1826 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1827 int bottom = calculateOffsetFromBottom(line); 1828 // Align the alternates popup with the left side of the View, 1829 // regardless of the position of the chip tapped. 1830 setEnabled(false); 1831 popup.setWidth(width); 1832 popup.setAnchorView(this); 1833 popup.setVerticalOffset(bottom); 1834 popup.setAdapter(createSingleAddressAdapter(currentChip)); 1835 popup.setOnItemClickListener(new OnItemClickListener() { 1836 @Override 1837 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1838 unselectChip(currentChip); 1839 popup.dismiss(); 1840 } 1841 }); 1842 popup.show(); 1843 ListView listView = popup.getListView(); 1844 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1845 listView.setItemChecked(0, true); 1846 } 1847 1848 /** 1849 * Remove selection from this chip. Unselecting a RecipientChip will render 1850 * the chip without a delete icon and with an unfocused background. This is 1851 * called when the RecipientChip no longer has focus. 1852 */ 1853 private void unselectChip(RecipientChip chip) { 1854 int start = getChipStart(chip); 1855 int end = getChipEnd(chip); 1856 Editable editable = getText(); 1857 mSelectedChip = null; 1858 if (start == -1 || end == -1) { 1859 Log.w(TAG, "The chip doesn't exist or may be a chip a user was editing"); 1860 setSelection(editable.length()); 1861 commitDefault(); 1862 } else { 1863 getSpannable().removeSpan(chip); 1864 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1865 editable.removeSpan(chip); 1866 try { 1867 if (!mNoChips) { 1868 editable.setSpan(constructChipSpan(chip.getEntry(), start, false), start, end, 1869 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1870 } 1871 } catch (NullPointerException e) { 1872 Log.e(TAG, e.getMessage(), e); 1873 } 1874 } 1875 setCursorVisible(true); 1876 setSelection(editable.length()); 1877 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1878 mAlternatesPopup.dismiss(); 1879 } 1880 } 1881 1882 /** 1883 * Return whether a touch event was inside the delete target of 1884 * a selected chip. It is in the delete target if: 1885 * 1) the x and y points of the event are within the 1886 * delete assset. 1887 * 2) the point tapped would have caused a cursor to appear 1888 * right after the selected chip. 1889 * @return boolean 1890 */ 1891 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1892 // Figure out the bounds of this chip and whether or not 1893 // the user clicked in the X portion. 1894 return chip.isSelected() && offset == getChipEnd(chip); 1895 } 1896 1897 /** 1898 * Remove the chip and any text associated with it from the RecipientEditTextView. 1899 */ 1900 // Visible for testing. 1901 /*pacakge*/ void removeChip(RecipientChip chip) { 1902 Spannable spannable = getSpannable(); 1903 int spanStart = spannable.getSpanStart(chip); 1904 int spanEnd = spannable.getSpanEnd(chip); 1905 Editable text = getText(); 1906 int toDelete = spanEnd; 1907 boolean wasSelected = chip == mSelectedChip; 1908 // Clear that there is a selected chip before updating any text. 1909 if (wasSelected) { 1910 mSelectedChip = null; 1911 } 1912 // Always remove trailing spaces when removing a chip. 1913 while (toDelete >= 0 && toDelete < text.length() && text.charAt(toDelete) == ' ') { 1914 toDelete++; 1915 } 1916 spannable.removeSpan(chip); 1917 text.delete(spanStart, toDelete); 1918 if (wasSelected) { 1919 clearSelectedChip(); 1920 } 1921 } 1922 1923 /** 1924 * Replace this currently selected chip with a new chip 1925 * that uses the contact data provided. 1926 */ 1927 // Visible for testing. 1928 /*package*/ void replaceChip(RecipientChip chip, RecipientEntry entry) { 1929 boolean wasSelected = chip == mSelectedChip; 1930 if (wasSelected) { 1931 mSelectedChip = null; 1932 } 1933 int start = getChipStart(chip); 1934 int end = getChipEnd(chip); 1935 getSpannable().removeSpan(chip); 1936 Editable editable = getText(); 1937 CharSequence chipText = createChip(entry, false); 1938 if (chipText != null) { 1939 if (start == -1 || end == -1) { 1940 Log.e(TAG, "The chip to replace does not exist but should."); 1941 editable.insert(0, chipText); 1942 } else { 1943 if (!TextUtils.isEmpty(chipText)) { 1944 // There may be a space to replace with this chip's new 1945 // associated 1946 // space. Check for it 1947 int toReplace = end; 1948 while (toReplace >= 0 && toReplace < editable.length() 1949 && editable.charAt(toReplace) == ' ') { 1950 toReplace++; 1951 } 1952 editable.replace(start, toReplace, chipText); 1953 } 1954 } 1955 } 1956 setCursorVisible(true); 1957 if (wasSelected) { 1958 clearSelectedChip(); 1959 } 1960 } 1961 1962 /** 1963 * Handle click events for a chip. When a selected chip receives a click 1964 * event, see if that event was in the delete icon. If so, delete it. 1965 * Otherwise, unselect the chip. 1966 */ 1967 public void onClick(RecipientChip chip, int offset, float x, float y) { 1968 if (chip.isSelected()) { 1969 if (isInDelete(chip, offset, x, y)) { 1970 removeChip(chip); 1971 } else { 1972 clearSelectedChip(); 1973 } 1974 } 1975 } 1976 1977 private boolean chipsPending() { 1978 return mPendingChipsCount > 0 || (mRemovedSpans != null && mRemovedSpans.size() > 0); 1979 } 1980 1981 @Override 1982 public void removeTextChangedListener(TextWatcher watcher) { 1983 mTextWatcher = null; 1984 super.removeTextChangedListener(watcher); 1985 } 1986 1987 private class RecipientTextWatcher implements TextWatcher { 1988 @Override 1989 public void afterTextChanged(Editable s) { 1990 // If the text has been set to null or empty, make sure we remove 1991 // all the spans we applied. 1992 if (TextUtils.isEmpty(s)) { 1993 // Remove all the chips spans. 1994 Spannable spannable = getSpannable(); 1995 RecipientChip[] chips = spannable.getSpans(0, getText().length(), 1996 RecipientChip.class); 1997 for (RecipientChip chip : chips) { 1998 spannable.removeSpan(chip); 1999 } 2000 if (mMoreChip != null) { 2001 spannable.removeSpan(mMoreChip); 2002 } 2003 return; 2004 } 2005 // Get whether there are any recipients pending addition to the 2006 // view. If there are, don't do anything in the text watcher. 2007 if (chipsPending()) { 2008 return; 2009 } 2010 // If the user is editing a chip, don't clear it. 2011 if (mSelectedChip != null 2012 && mSelectedChip.getContactId() != RecipientEntry.INVALID_CONTACT) { 2013 setCursorVisible(true); 2014 setSelection(getText().length()); 2015 clearSelectedChip(); 2016 } 2017 int length = s.length(); 2018 // Make sure there is content there to parse and that it is 2019 // not just the commit character. 2020 if (length > 1) { 2021 char last; 2022 int end = getSelectionEnd() == 0 ? 0 : getSelectionEnd() - 1; 2023 int len = length() - 1; 2024 if (end != len) { 2025 last = s.charAt(end); 2026 } else { 2027 last = s.charAt(len); 2028 } 2029 if (last == COMMIT_CHAR_SEMICOLON || last == COMMIT_CHAR_COMMA) { 2030 commitByCharacter(); 2031 } else if (last == COMMIT_CHAR_SPACE) { 2032 // Check if this is a valid email address. If it is, 2033 // commit it. 2034 String text = getText().toString(); 2035 int tokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 2036 String sub = text.substring(tokenStart, mTokenizer.findTokenEnd(text, 2037 tokenStart)); 2038 if (!TextUtils.isEmpty(sub) && mValidator != null && mValidator.isValid(sub)) { 2039 commitByCharacter(); 2040 } 2041 } 2042 } 2043 } 2044 2045 @Override 2046 public void onTextChanged(CharSequence s, int start, int before, int count) { 2047 // Do nothing. 2048 } 2049 2050 @Override 2051 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 2052 // Do nothing. 2053 } 2054 } 2055 2056 /** 2057 * Handles pasting a {@link ClipData} to this {@link RecipientEditTextView}. 2058 */ 2059 private void handlePasteClip(ClipData clip) { 2060 removeTextChangedListener(mTextWatcher); 2061 2062 if (clip != null && clip.getDescription().hasMimeType(ClipDescription.MIMETYPE_TEXT_PLAIN)){ 2063 for (int i = 0; i < clip.getItemCount(); i++) { 2064 CharSequence paste = clip.getItemAt(i).getText(); 2065 if (paste != null) { 2066 int start = getSelectionStart(); 2067 int end = getSelectionEnd(); 2068 Editable editable = getText(); 2069 if (start >= 0 && end >= 0 && start != end) { 2070 editable.append(paste, start, end); 2071 } else { 2072 editable.insert(end, paste); 2073 } 2074 handlePasteAndReplace(); 2075 } 2076 } 2077 } 2078 2079 mHandler.post(mAddTextWatcher); 2080 } 2081 2082 @Override 2083 public boolean onTextContextMenuItem(int id) { 2084 if (id == android.R.id.paste) { 2085 ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService( 2086 Context.CLIPBOARD_SERVICE); 2087 handlePasteClip(clipboard.getPrimaryClip()); 2088 return true; 2089 } 2090 return super.onTextContextMenuItem(id); 2091 } 2092 2093 private void handlePasteAndReplace() { 2094 ArrayList<RecipientChip> created = handlePaste(); 2095 if (created != null && created.size() > 0) { 2096 // Perform reverse lookups on the pasted contacts. 2097 IndividualReplacementTask replace = new IndividualReplacementTask(); 2098 replace.execute(created); 2099 } 2100 } 2101 2102 // Visible for testing. 2103 /* package */ArrayList<RecipientChip> handlePaste() { 2104 String text = getText().toString(); 2105 int originalTokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 2106 String lastAddress = text.substring(originalTokenStart); 2107 int tokenStart = originalTokenStart; 2108 int prevTokenStart = tokenStart; 2109 RecipientChip findChip = null; 2110 ArrayList<RecipientChip> created = new ArrayList<RecipientChip>(); 2111 if (tokenStart != 0) { 2112 // There are things before this! 2113 while (tokenStart != 0 && findChip == null) { 2114 prevTokenStart = tokenStart; 2115 tokenStart = mTokenizer.findTokenStart(text, tokenStart); 2116 findChip = findChip(tokenStart); 2117 } 2118 if (tokenStart != originalTokenStart) { 2119 if (findChip != null) { 2120 tokenStart = prevTokenStart; 2121 } 2122 int tokenEnd; 2123 RecipientChip createdChip; 2124 while (tokenStart < originalTokenStart) { 2125 tokenEnd = movePastTerminators(mTokenizer.findTokenEnd(text, tokenStart)); 2126 commitChip(tokenStart, tokenEnd, getText()); 2127 createdChip = findChip(tokenStart); 2128 // +1 for the space at the end. 2129 tokenStart = getSpannable().getSpanEnd(createdChip) + 1; 2130 created.add(createdChip); 2131 } 2132 } 2133 } 2134 // Take a look at the last token. If the token has been completed with a 2135 // commit character, create a chip. 2136 if (isCompletedToken(lastAddress)) { 2137 Editable editable = getText(); 2138 tokenStart = editable.toString().indexOf(lastAddress, originalTokenStart); 2139 commitChip(tokenStart, editable.length(), editable); 2140 created.add(findChip(tokenStart)); 2141 } 2142 return created; 2143 } 2144 2145 // Visible for testing. 2146 /* package */int movePastTerminators(int tokenEnd) { 2147 if (tokenEnd >= length()) { 2148 return tokenEnd; 2149 } 2150 char atEnd = getText().toString().charAt(tokenEnd); 2151 if (atEnd == COMMIT_CHAR_COMMA || atEnd == COMMIT_CHAR_SEMICOLON) { 2152 tokenEnd++; 2153 } 2154 // This token had not only an end token character, but also a space 2155 // separating it from the next token. 2156 if (tokenEnd < length() && getText().toString().charAt(tokenEnd) == ' ') { 2157 tokenEnd++; 2158 } 2159 return tokenEnd; 2160 } 2161 2162 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 2163 private RecipientChip createFreeChip(RecipientEntry entry) { 2164 try { 2165 if (mNoChips) { 2166 return null; 2167 } 2168 return constructChipSpan(entry, -1, false); 2169 } catch (NullPointerException e) { 2170 Log.e(TAG, e.getMessage(), e); 2171 return null; 2172 } 2173 } 2174 2175 @Override 2176 protected Void doInBackground(Void... params) { 2177 if (mIndividualReplacements != null) { 2178 mIndividualReplacements.cancel(true); 2179 } 2180 // For each chip in the list, look up the matching contact. 2181 // If there is a match, replace that chip with the matching 2182 // chip. 2183 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 2184 RecipientChip[] existingChips = getSortedRecipients(); 2185 for (int i = 0; i < existingChips.length; i++) { 2186 originalRecipients.add(existingChips[i]); 2187 } 2188 if (mRemovedSpans != null) { 2189 originalRecipients.addAll(mRemovedSpans); 2190 } 2191 String[] addresses = new String[originalRecipients.size()]; 2192 RecipientChip chip; 2193 for (int i = 0; i < originalRecipients.size(); i++) { 2194 chip = originalRecipients.get(i); 2195 if (chip != null) { 2196 addresses[i] = createAddressText(chip.getEntry()); 2197 } 2198 } 2199 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 2200 .getMatchingRecipients(getContext(), addresses); 2201 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 2202 for (final RecipientChip temp : originalRecipients) { 2203 RecipientEntry entry = null; 2204 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 2205 && getSpannable().getSpanStart(temp) != -1) { 2206 // Replace this. 2207 entry = createValidatedEntry(entries.get(tokenizeAddress(temp.getEntry() 2208 .getDestination()))); 2209 } 2210 if (entry != null) { 2211 replacements.add(createFreeChip(entry)); 2212 } else { 2213 replacements.add(temp); 2214 } 2215 } 2216 if (replacements != null && replacements.size() > 0) { 2217 mHandler.post(new Runnable() { 2218 @Override 2219 public void run() { 2220 SpannableStringBuilder text = new SpannableStringBuilder(getText() 2221 .toString()); 2222 Editable oldText = getText(); 2223 int start, end; 2224 int i = 0; 2225 for (RecipientChip chip : originalRecipients) { 2226 start = oldText.getSpanStart(chip); 2227 if (start != -1) { 2228 end = oldText.getSpanEnd(chip); 2229 oldText.removeSpan(chip); 2230 // Leave a spot for the space! 2231 RecipientChip replacement = replacements.get(i); 2232 text.setSpan(replacement, start, end, 2233 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 2234 replacement.setOriginalText(text.toString().substring(start, end)); 2235 } 2236 i++; 2237 } 2238 originalRecipients.clear(); 2239 setText(text); 2240 } 2241 }); 2242 } 2243 return null; 2244 } 2245 } 2246 2247 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 2248 @SuppressWarnings("unchecked") 2249 @Override 2250 protected Void doInBackground(Object... params) { 2251 // For each chip in the list, look up the matching contact. 2252 // If there is a match, replace that chip with the matching 2253 // chip. 2254 final ArrayList<RecipientChip> originalRecipients = 2255 (ArrayList<RecipientChip>) params[0]; 2256 String[] addresses = new String[originalRecipients.size()]; 2257 RecipientChip chip; 2258 for (int i = 0; i < originalRecipients.size(); i++) { 2259 chip = originalRecipients.get(i); 2260 if (chip != null) { 2261 addresses[i] = createAddressText(chip.getEntry()); 2262 } 2263 } 2264 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 2265 .getMatchingRecipients(getContext(), addresses); 2266 for (final RecipientChip temp : originalRecipients) { 2267 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 2268 && getSpannable().getSpanStart(temp) != -1) { 2269 // Replace this. 2270 final RecipientEntry entry = createValidatedEntry(entries 2271 .get(tokenizeAddress(temp.getEntry().getDestination()).toLowerCase())); 2272 if (entry != null) { 2273 mHandler.post(new Runnable() { 2274 @Override 2275 public void run() { 2276 replaceChip(temp, entry); 2277 } 2278 }); 2279 } 2280 } 2281 } 2282 return null; 2283 } 2284 } 2285 2286 2287 /** 2288 * MoreImageSpan is a simple class created for tracking the existence of a 2289 * more chip across activity restarts/ 2290 */ 2291 private class MoreImageSpan extends ImageSpan { 2292 public MoreImageSpan(Drawable b) { 2293 super(b); 2294 } 2295 } 2296 2297 @Override 2298 public boolean onDown(MotionEvent e) { 2299 return false; 2300 } 2301 2302 @Override 2303 public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { 2304 // Do nothing. 2305 return false; 2306 } 2307 2308 @Override 2309 public void onLongPress(MotionEvent event) { 2310 if (mSelectedChip != null) { 2311 return; 2312 } 2313 float x = event.getX(); 2314 float y = event.getY(); 2315 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 2316 RecipientChip currentChip = findChip(offset); 2317 if (currentChip != null) { 2318 if (mDragEnabled) { 2319 // Start drag-and-drop for the selected chip. 2320 startDrag(currentChip); 2321 } else { 2322 // Copy the selected chip email address. 2323 showCopyDialog(currentChip.getEntry().getDestination()); 2324 } 2325 } 2326 } 2327 2328 /** 2329 * Enables drag-and-drop for chips. 2330 */ 2331 public void enableDrag() { 2332 mDragEnabled = true; 2333 } 2334 2335 /** 2336 * Starts drag-and-drop for the selected chip. 2337 */ 2338 private void startDrag(RecipientChip currentChip) { 2339 String address = currentChip.getEntry().getDestination(); 2340 ClipData data = ClipData.newPlainText(address, address + COMMIT_CHAR_COMMA); 2341 2342 // Start drag mode. 2343 startDrag(data, new RecipientChipShadow(currentChip), null, 0); 2344 2345 // Remove the current chip, so drag-and-drop will result in a move. 2346 // TODO (phamm): consider readd this chip if it's dropped outside a target. 2347 removeChip(currentChip); 2348 } 2349 2350 /** 2351 * Handles drag event. 2352 */ 2353 @Override 2354 public boolean onDragEvent(DragEvent event) { 2355 switch (event.getAction()) { 2356 case DragEvent.ACTION_DRAG_STARTED: 2357 // Only handle plain text drag and drop. 2358 return event.getClipDescription().hasMimeType(ClipDescription.MIMETYPE_TEXT_PLAIN); 2359 case DragEvent.ACTION_DRAG_ENTERED: 2360 requestFocus(); 2361 return true; 2362 case DragEvent.ACTION_DROP: 2363 handlePasteClip(event.getClipData()); 2364 return true; 2365 } 2366 return false; 2367 } 2368 2369 /** 2370 * Drag shadow for a {@link RecipientChip}. 2371 */ 2372 private final class RecipientChipShadow extends DragShadowBuilder { 2373 private final RecipientChip mChip; 2374 2375 public RecipientChipShadow(RecipientChip chip) { 2376 mChip = chip; 2377 } 2378 2379 @Override 2380 public void onProvideShadowMetrics(Point shadowSize, Point shadowTouchPoint) { 2381 Rect rect = mChip.getDrawable().getBounds(); 2382 shadowSize.set(rect.width(), rect.height()); 2383 shadowTouchPoint.set(rect.centerX(), rect.centerY()); 2384 } 2385 2386 @Override 2387 public void onDrawShadow(Canvas canvas) { 2388 mChip.getDrawable().draw(canvas); 2389 } 2390 } 2391 2392 private void showCopyDialog(final String address) { 2393 mCopyAddress = address; 2394 mCopyDialog.setTitle(address); 2395 mCopyDialog.setContentView(mCopyViewRes); 2396 mCopyDialog.setCancelable(true); 2397 mCopyDialog.setCanceledOnTouchOutside(true); 2398 mCopyDialog.findViewById(android.R.id.button1).setOnClickListener(this); 2399 mCopyDialog.setOnDismissListener(this); 2400 mCopyDialog.show(); 2401 } 2402 2403 @Override 2404 public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) { 2405 // Do nothing. 2406 return false; 2407 } 2408 2409 @Override 2410 public void onShowPress(MotionEvent e) { 2411 // Do nothing. 2412 } 2413 2414 @Override 2415 public boolean onSingleTapUp(MotionEvent e) { 2416 // Do nothing. 2417 return false; 2418 } 2419 2420 @Override 2421 public void onDismiss(DialogInterface dialog) { 2422 mCopyAddress = null; 2423 } 2424 2425 @Override 2426 public void onClick(View v) { 2427 // Copy this to the clipboard. 2428 ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService( 2429 Context.CLIPBOARD_SERVICE); 2430 clipboard.setPrimaryClip(ClipData.newPlainText("", mCopyAddress)); 2431 mCopyDialog.dismiss(); 2432 } 2433} 2434