RecipientEditTextView.java revision e13775cc6e9342e42db0b853cc42dbfda6d1365f
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.graphics.Bitmap; 27import android.graphics.BitmapFactory; 28import android.graphics.Canvas; 29import android.graphics.Matrix; 30import android.graphics.Point; 31import android.graphics.Rect; 32import android.graphics.RectF; 33import android.graphics.drawable.BitmapDrawable; 34import android.graphics.drawable.Drawable; 35import android.os.AsyncTask; 36import android.os.Handler; 37import android.os.Message; 38import android.os.Parcelable; 39import android.text.Editable; 40import android.text.InputType; 41import android.text.Layout; 42import android.text.Spannable; 43import android.text.SpannableString; 44import android.text.SpannableStringBuilder; 45import android.text.Spanned; 46import android.text.TextPaint; 47import android.text.TextUtils; 48import android.text.TextWatcher; 49import android.text.method.QwertyKeyListener; 50import android.text.style.ImageSpan; 51import android.text.util.Rfc822Token; 52import android.text.util.Rfc822Tokenizer; 53import android.util.AttributeSet; 54import android.util.Log; 55import android.view.ActionMode; 56import android.view.ActionMode.Callback; 57import android.view.DragEvent; 58import android.view.GestureDetector; 59import android.view.KeyEvent; 60import android.view.LayoutInflater; 61import android.view.Menu; 62import android.view.MenuItem; 63import android.view.MotionEvent; 64import android.view.View; 65import android.view.View.OnClickListener; 66import android.view.ViewParent; 67import android.widget.AdapterView; 68import android.widget.AdapterView.OnItemClickListener; 69import android.widget.ListAdapter; 70import android.widget.ListPopupWindow; 71import android.widget.ListView; 72import android.widget.MultiAutoCompleteTextView; 73import android.widget.PopupWindow; 74import android.widget.ScrollView; 75import android.widget.TextView; 76 77import java.util.ArrayList; 78import java.util.Arrays; 79import java.util.Collection; 80import java.util.Collections; 81import java.util.Comparator; 82import java.util.HashMap; 83import java.util.HashSet; 84import java.util.Set; 85 86/** 87 * RecipientEditTextView is an auto complete text view for use with applications 88 * that use the new Chips UI for addressing a message to recipients. 89 */ 90public class RecipientEditTextView extends MultiAutoCompleteTextView implements 91 OnItemClickListener, Callback, RecipientAlternatesAdapter.OnCheckedItemChangedListener, 92 GestureDetector.OnGestureListener, OnDismissListener, OnClickListener, 93 PopupWindow.OnDismissListener { 94 95 private static final char COMMIT_CHAR_COMMA = ','; 96 97 private static final char COMMIT_CHAR_SEMICOLON = ';'; 98 99 private static final char COMMIT_CHAR_SPACE = ' '; 100 101 private static final String TAG = "RecipientEditTextView"; 102 103 private static int DISMISS = "dismiss".hashCode(); 104 105 private static final long DISMISS_DELAY = 300; 106 107 // TODO: get correct number/ algorithm from with UX. 108 // Visible for testing. 109 /*package*/ static final int CHIP_LIMIT = 2; 110 111 private static final int MAX_CHIPS_PARSED = 50; 112 113 private static int sSelectedTextColor = -1; 114 115 // Resources for displaying chips. 116 private Drawable mChipBackground = null; 117 118 private Drawable mChipDelete = null; 119 120 private Drawable mInvalidChipBackground; 121 122 private Drawable mChipBackgroundPressed; 123 124 private float mChipHeight; 125 126 private float mChipFontSize; 127 128 private int mChipPadding; 129 130 private Tokenizer mTokenizer; 131 132 private Validator mValidator; 133 134 private RecipientChip mSelectedChip; 135 136 private int mAlternatesLayout; 137 138 private Bitmap mDefaultContactPhoto; 139 140 private ImageSpan mMoreChip; 141 142 private TextView mMoreItem; 143 144 private final ArrayList<String> mPendingChips = new ArrayList<String>(); 145 146 private Handler mHandler; 147 148 private int mPendingChipsCount = 0; 149 150 private boolean mNoChips = false; 151 152 private ListPopupWindow mAlternatesPopup; 153 154 private ListPopupWindow mAddressPopup; 155 156 private ArrayList<RecipientChip> mTemporaryRecipients; 157 158 private ArrayList<RecipientChip> mRemovedSpans; 159 160 private boolean mShouldShrink = true; 161 162 // Chip copy fields. 163 private GestureDetector mGestureDetector; 164 165 private Dialog mCopyDialog; 166 167 private int mCopyViewRes; 168 169 private String mCopyAddress; 170 171 /** 172 * Used with {@link #mAlternatesPopup}. Handles clicks to alternate addresses for a 173 * selected chip. 174 */ 175 private OnItemClickListener mAlternatesListener; 176 177 private int mCheckedItem; 178 179 private TextWatcher mTextWatcher; 180 181 // Obtain the enclosing scroll view, if it exists, so that the view can be 182 // scrolled to show the last line of chips content. 183 private ScrollView mScrollView; 184 185 private boolean mTriedGettingScrollView; 186 187 private boolean mDragEnabled = false; 188 189 private final Runnable mAddTextWatcher = new Runnable() { 190 @Override 191 public void run() { 192 if (mTextWatcher == null) { 193 mTextWatcher = new RecipientTextWatcher(); 194 addTextChangedListener(mTextWatcher); 195 } 196 } 197 }; 198 199 private IndividualReplacementTask mIndividualReplacements; 200 201 private Runnable mHandlePendingChips = new Runnable() { 202 203 @Override 204 public void run() { 205 handlePendingChips(); 206 } 207 208 }; 209 210 private Runnable mDelayedShrink = new Runnable() { 211 212 @Override 213 public void run() { 214 shrink(); 215 } 216 217 }; 218 219 public RecipientEditTextView(Context context, AttributeSet attrs) { 220 super(context, attrs); 221 if (sSelectedTextColor == -1) { 222 sSelectedTextColor = context.getResources().getColor(android.R.color.white); 223 } 224 mAlternatesPopup = new ListPopupWindow(context); 225 mAlternatesPopup.setOnDismissListener(this); 226 mAddressPopup = new ListPopupWindow(context); 227 mAddressPopup.setOnDismissListener(this); 228 mCopyDialog = new Dialog(context); 229 mAlternatesListener = new OnItemClickListener() { 230 @Override 231 public void onItemClick(AdapterView<?> adapterView,View view, int position, 232 long rowId) { 233 mAlternatesPopup.setOnItemClickListener(null); 234 setEnabled(true); 235 replaceChip(mSelectedChip, ((RecipientAlternatesAdapter) adapterView.getAdapter()) 236 .getRecipientEntry(position)); 237 Message delayed = Message.obtain(mHandler, DISMISS); 238 delayed.obj = mAlternatesPopup; 239 mHandler.sendMessageDelayed(delayed, DISMISS_DELAY); 240 clearComposingText(); 241 } 242 }; 243 setInputType(getInputType() | InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS); 244 setOnItemClickListener(this); 245 setCustomSelectionActionModeCallback(this); 246 mHandler = new Handler() { 247 @Override 248 public void handleMessage(Message msg) { 249 if (msg.what == DISMISS) { 250 ((ListPopupWindow) msg.obj).dismiss(); 251 return; 252 } 253 super.handleMessage(msg); 254 } 255 }; 256 mTextWatcher = new RecipientTextWatcher(); 257 addTextChangedListener(mTextWatcher); 258 mGestureDetector = new GestureDetector(context, this); 259 } 260 261 /*package*/ RecipientChip getLastChip() { 262 RecipientChip last = null; 263 RecipientChip[] chips = getSortedRecipients(); 264 if (chips != null && chips.length > 0) { 265 last = chips[chips.length - 1]; 266 } 267 return last; 268 } 269 270 @Override 271 public void onSelectionChanged(int start, int end) { 272 // When selection changes, see if it is inside the chips area. 273 // If so, move the cursor back after the chips again. 274 RecipientChip last = getLastChip(); 275 if (last != null && start < getSpannable().getSpanEnd(last)) { 276 // Grab the last chip and set the cursor to after it. 277 setSelection(Math.min(getSpannable().getSpanEnd(last) + 1, getText().length())); 278 } 279 super.onSelectionChanged(start, end); 280 } 281 282 @Override 283 public void onRestoreInstanceState(Parcelable state) { 284 if (!TextUtils.isEmpty(getText())) { 285 super.onRestoreInstanceState(null); 286 } else { 287 super.onRestoreInstanceState(state); 288 } 289 } 290 291 @Override 292 public Parcelable onSaveInstanceState() { 293 // If the user changes orientation while they are editing, just roll back the selection. 294 clearSelectedChip(); 295 return super.onSaveInstanceState(); 296 } 297 298 /** 299 * Convenience method: Append the specified text slice to the TextView's 300 * display buffer, upgrading it to BufferType.EDITABLE if it was 301 * not already editable. Commas are excluded as they are added automatically 302 * by the view. 303 */ 304 @Override 305 public void append(CharSequence text, int start, int end) { 306 // We don't care about watching text changes while appending. 307 if (mTextWatcher != null) { 308 removeTextChangedListener(mTextWatcher); 309 } 310 super.append(text, start, end); 311 if (!TextUtils.isEmpty(text) && TextUtils.getTrimmedLength(text) > 0) { 312 final String displayString = (String) text; 313 int seperatorPos = displayString.indexOf(COMMIT_CHAR_COMMA); 314 if (seperatorPos != 0 && !TextUtils.isEmpty(displayString) 315 && TextUtils.getTrimmedLength(displayString) > 0) { 316 mPendingChipsCount++; 317 mPendingChips.add((String)text); 318 } 319 } 320 // Put a message on the queue to make sure we ALWAYS handle pending chips. 321 if (mPendingChipsCount > 0) { 322 postHandlePendingChips(); 323 } 324 mHandler.post(mAddTextWatcher); 325 } 326 327 @Override 328 public void onFocusChanged(boolean hasFocus, int direction, Rect previous) { 329 super.onFocusChanged(hasFocus, direction, previous); 330 if (!hasFocus) { 331 shrink(); 332 } else { 333 expand(); 334 scrollLineIntoView(getLineCount()); 335 } 336 } 337 338 @Override 339 public void performValidation() { 340 // Do nothing. Chips handles its own validation. 341 } 342 343 private void shrink() { 344 if (mSelectedChip != null 345 && mSelectedChip.getEntry().getContactId() != RecipientEntry.INVALID_CONTACT) { 346 clearSelectedChip(); 347 } else { 348 if (getWidth() <= 0) { 349 // We don't have the width yet which means the view hasn't been drawn yet 350 // and there is no reason to attempt to commit chips yet. 351 // This focus lost must be the result of an orientation change 352 // or an initial rendering. 353 // Re-post the shrink for later. 354 mHandler.removeCallbacks(mDelayedShrink); 355 mHandler.post(mDelayedShrink); 356 return; 357 } 358 // Reset any pending chips as they would have been handled 359 // when the field lost focus. 360 if (mPendingChipsCount > 0) { 361 postHandlePendingChips(); 362 } else { 363 Editable editable = getText(); 364 int end = getSelectionEnd(); 365 int start = mTokenizer.findTokenStart(editable, end); 366 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 367 if ((chips == null || chips.length == 0)) { 368 Editable text = getText(); 369 int whatEnd = mTokenizer.findTokenEnd(text, start); 370 // This token was already tokenized, so skip past the ending token. 371 if (whatEnd < text.length() && text.charAt(whatEnd) == ',') { 372 whatEnd++; 373 } 374 // In the middle of chip; treat this as an edit 375 // and commit the whole token. 376 int selEnd = getSelectionEnd(); 377 if (whatEnd != selEnd) { 378 handleEdit(start, whatEnd); 379 } else { 380 commitChip(start, end, editable); 381 } 382 } 383 } 384 mHandler.post(mAddTextWatcher); 385 } 386 createMoreChip(); 387 } 388 389 private void expand() { 390 removeMoreChip(); 391 setCursorVisible(true); 392 Editable text = getText(); 393 setSelection(text != null && text.length() > 0 ? text.length() : 0); 394 // If there are any temporary chips, try replacing them now that the user 395 // has expanded the field. 396 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0) { 397 new RecipientReplacementTask().execute(); 398 mTemporaryRecipients = null; 399 } 400 } 401 402 private CharSequence ellipsizeText(CharSequence text, TextPaint paint, float maxWidth) { 403 paint.setTextSize(mChipFontSize); 404 if (maxWidth <= 0 && Log.isLoggable(TAG, Log.DEBUG)) { 405 Log.d(TAG, "Max width is negative: " + maxWidth); 406 } 407 return TextUtils.ellipsize(text, paint, maxWidth, 408 TextUtils.TruncateAt.END); 409 } 410 411 private Bitmap createSelectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 412 // Ellipsize the text so that it takes AT MOST the entire width of the 413 // autocomplete text entry area. Make sure to leave space for padding 414 // on the sides. 415 int height = (int) mChipHeight; 416 int deleteWidth = height; 417 float[] widths = new float[1]; 418 paint.getTextWidths(" ", widths); 419 CharSequence ellipsizedText = ellipsizeText(createChipDisplayText(contact), paint, 420 calculateAvailableWidth(true) - deleteWidth - widths[0]); 421 422 // Make sure there is a minimum chip width so the user can ALWAYS 423 // tap a chip without difficulty. 424 int width = Math.max(deleteWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 425 ellipsizedText.length())) 426 + (mChipPadding * 2) + deleteWidth); 427 428 // Create the background of the chip. 429 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 430 Canvas canvas = new Canvas(tmpBitmap); 431 if (mChipBackgroundPressed != null) { 432 mChipBackgroundPressed.setBounds(0, 0, width, height); 433 mChipBackgroundPressed.draw(canvas); 434 paint.setColor(sSelectedTextColor); 435 // Vertically center the text in the chip. 436 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 437 getTextYOffset((String) ellipsizedText, paint, height), paint); 438 // Make the delete a square. 439 Rect backgroundPadding = new Rect(); 440 mChipBackgroundPressed.getPadding(backgroundPadding); 441 mChipDelete.setBounds(width - deleteWidth + backgroundPadding.left, 442 0 + backgroundPadding.top, 443 width - backgroundPadding.right, 444 height - backgroundPadding.bottom); 445 mChipDelete.draw(canvas); 446 } else { 447 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 448 } 449 return tmpBitmap; 450 } 451 452 453 private Bitmap createUnselectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 454 // Ellipsize the text so that it takes AT MOST the entire width of the 455 // autocomplete text entry area. Make sure to leave space for padding 456 // on the sides. 457 int height = (int) mChipHeight; 458 int iconWidth = height; 459 float[] widths = new float[1]; 460 paint.getTextWidths(" ", widths); 461 CharSequence ellipsizedText = ellipsizeText(createChipDisplayText(contact), paint, 462 calculateAvailableWidth(false) - iconWidth - widths[0]); 463 // Make sure there is a minimum chip width so the user can ALWAYS 464 // tap a chip without difficulty. 465 int width = Math.max(iconWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 466 ellipsizedText.length())) 467 + (mChipPadding * 2) + iconWidth); 468 469 // Create the background of the chip. 470 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 471 Canvas canvas = new Canvas(tmpBitmap); 472 Drawable background = getChipBackground(contact); 473 if (background != null) { 474 background.setBounds(0, 0, width, height); 475 background.draw(canvas); 476 477 // Don't draw photos for recipients that have been typed in. 478 if (contact.getContactId() != RecipientEntry.INVALID_CONTACT) { 479 byte[] photoBytes = contact.getPhotoBytes(); 480 // There may not be a photo yet if anything but the first contact address 481 // was selected. 482 if (photoBytes == null && contact.getPhotoThumbnailUri() != null) { 483 // TODO: cache this in the recipient entry? 484 ((BaseRecipientAdapter) getAdapter()).fetchPhoto(contact, contact 485 .getPhotoThumbnailUri()); 486 photoBytes = contact.getPhotoBytes(); 487 } 488 489 Bitmap photo; 490 if (photoBytes != null) { 491 photo = BitmapFactory.decodeByteArray(photoBytes, 0, photoBytes.length); 492 } else { 493 // TODO: can the scaled down default photo be cached? 494 photo = mDefaultContactPhoto; 495 } 496 // Draw the photo on the left side. 497 if (photo != null) { 498 RectF src = new RectF(0, 0, photo.getWidth(), photo.getHeight()); 499 Rect backgroundPadding = new Rect(); 500 mChipBackground.getPadding(backgroundPadding); 501 RectF dst = new RectF(width - iconWidth + backgroundPadding.left, 502 0 + backgroundPadding.top, 503 width - backgroundPadding.right, 504 height - backgroundPadding.bottom); 505 Matrix matrix = new Matrix(); 506 matrix.setRectToRect(src, dst, Matrix.ScaleToFit.FILL); 507 canvas.drawBitmap(photo, matrix, paint); 508 } 509 } else { 510 // Don't leave any space for the icon. It isn't being drawn. 511 iconWidth = 0; 512 } 513 paint.setColor(getContext().getResources().getColor(android.R.color.black)); 514 // Vertically center the text in the chip. 515 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 516 getTextYOffset((String)ellipsizedText, paint, height), paint); 517 } else { 518 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 519 } 520 return tmpBitmap; 521 } 522 523 /** 524 * Get the background drawable for a RecipientChip. 525 */ 526 // Visible for testing. 527 /*package*/ Drawable getChipBackground(RecipientEntry contact) { 528 return (mValidator != null && mValidator.isValid(contact.getDestination())) ? 529 mChipBackground : mInvalidChipBackground; 530 } 531 532 private float getTextYOffset(String text, TextPaint paint, int height) { 533 Rect bounds = new Rect(); 534 paint.getTextBounds(text, 0, text.length(), bounds); 535 int textHeight = bounds.bottom - bounds.top - (int)paint.descent(); 536 return height - ((height - textHeight) / 2); 537 } 538 539 private RecipientChip constructChipSpan(RecipientEntry contact, int offset, boolean pressed) 540 throws NullPointerException { 541 if (mChipBackground == null) { 542 throw new NullPointerException( 543 "Unable to render any chips as setChipDimensions was not called."); 544 } 545 Layout layout = getLayout(); 546 547 TextPaint paint = getPaint(); 548 float defaultSize = paint.getTextSize(); 549 int defaultColor = paint.getColor(); 550 551 Bitmap tmpBitmap; 552 if (pressed) { 553 tmpBitmap = createSelectedChip(contact, paint, layout); 554 555 } else { 556 tmpBitmap = createUnselectedChip(contact, paint, layout); 557 } 558 559 // Pass the full text, un-ellipsized, to the chip. 560 Drawable result = new BitmapDrawable(getResources(), tmpBitmap); 561 result.setBounds(0, 0, tmpBitmap.getWidth(), tmpBitmap.getHeight()); 562 RecipientChip recipientChip = new RecipientChip(result, contact, offset); 563 // Return text to the original size. 564 paint.setTextSize(defaultSize); 565 paint.setColor(defaultColor); 566 return recipientChip; 567 } 568 569 /** 570 * Calculate the bottom of the line the chip will be located on using: 571 * 1) which line the chip appears on 572 * 2) the height of a chip 573 * 3) padding built into the edit text view 574 */ 575 private int calculateOffsetFromBottom(int line) { 576 // Line offsets start at zero. 577 int actualLine = getLineCount() - (line + 1); 578 return -((actualLine * ((int) mChipHeight) + getPaddingBottom()) + getPaddingTop()) 579 + getDropDownVerticalOffset(); 580 } 581 582 /** 583 * Get the max amount of space a chip can take up. The formula takes into 584 * account the width of the EditTextView, any view padding, and padding 585 * that will be added to the chip. 586 */ 587 private float calculateAvailableWidth(boolean pressed) { 588 return getWidth() - getPaddingLeft() - getPaddingRight() - (mChipPadding * 2); 589 } 590 591 /** 592 * Set all chip dimensions and resources. This has to be done from the 593 * application as this is a static library. 594 * @param chipBackground 595 * @param chipBackgroundPressed 596 * @param invalidChip 597 * @param chipDelete 598 * @param defaultContact 599 * @param moreResource 600 * @param alternatesLayout 601 * @param chipHeight 602 * @param padding Padding around the text in a chip 603 * @param chipFontSize 604 * @param copyViewRes 605 */ 606 public void setChipDimensions(Drawable chipBackground, Drawable chipBackgroundPressed, 607 Drawable invalidChip, Drawable chipDelete, Bitmap defaultContact, int moreResource, 608 int alternatesLayout, float chipHeight, float padding, 609 float chipFontSize, int copyViewRes) { 610 mChipBackground = chipBackground; 611 mChipBackgroundPressed = chipBackgroundPressed; 612 mChipDelete = chipDelete; 613 mChipPadding = (int) padding; 614 mAlternatesLayout = alternatesLayout; 615 mDefaultContactPhoto = defaultContact; 616 mMoreItem = (TextView) LayoutInflater.from(getContext()).inflate(moreResource, null); 617 mChipHeight = chipHeight; 618 mChipFontSize = chipFontSize; 619 mInvalidChipBackground = invalidChip; 620 mCopyViewRes = copyViewRes; 621 } 622 623 // Visible for testing. 624 /* package */ void setMoreItem(TextView moreItem) { 625 mMoreItem = moreItem; 626 } 627 628 629 // Visible for testing. 630 /* package */ void setChipBackground(Drawable chipBackground) { 631 mChipBackground = chipBackground; 632 } 633 634 // Visible for testing. 635 /* package */ void setChipHeight(int height) { 636 mChipHeight = height; 637 } 638 639 /** 640 * Set whether to shrink the recipients field such that at most 641 * one line of recipients chips are shown when the field loses 642 * focus. By default, the number of displayed recipients will be 643 * limited and a "more" chip will be shown when focus is lost. 644 * @param shrink 645 */ 646 public void setOnFocusListShrinkRecipients(boolean shrink) { 647 mShouldShrink = shrink; 648 } 649 650 @Override 651 public void onSizeChanged(int width, int height, int oldw, int oldh) { 652 super.onSizeChanged(width, height, oldw, oldh); 653 if (width != 0 && height != 0) { 654 if (mPendingChipsCount > 0) { 655 postHandlePendingChips(); 656 } else { 657 checkChipWidths(); 658 } 659 } 660 // Try to find the scroll view parent, if it exists. 661 if (mScrollView == null && !mTriedGettingScrollView) { 662 ViewParent parent = getParent(); 663 while (parent != null && !(parent instanceof ScrollView)) { 664 parent = parent.getParent(); 665 } 666 if (parent != null) { 667 mScrollView = (ScrollView) parent; 668 } 669 mTriedGettingScrollView = true; 670 } 671 } 672 673 private void postHandlePendingChips() { 674 mHandler.removeCallbacks(mHandlePendingChips); 675 mHandler.post(mHandlePendingChips); 676 } 677 678 private void checkChipWidths() { 679 // Check the widths of the associated chips. 680 RecipientChip[] chips = getSortedRecipients(); 681 if (chips != null) { 682 Rect bounds; 683 for (RecipientChip chip : chips) { 684 bounds = chip.getDrawable().getBounds(); 685 if (getWidth() > 0 && bounds.right - bounds.left > getWidth()) { 686 // Need to redraw that chip. 687 replaceChip(chip, chip.getEntry()); 688 } 689 } 690 } 691 } 692 693 // Visible for testing. 694 /*package*/ void handlePendingChips() { 695 if (getViewWidth() <= 0) { 696 // The widget has not been sized yet. 697 // This will be called as a result of onSizeChanged 698 // at a later point. 699 return; 700 } 701 if (mPendingChipsCount <= 0) { 702 return; 703 } 704 705 synchronized (mPendingChips) { 706 Editable editable = getText(); 707 // Tokenize! 708 if (mPendingChipsCount <= MAX_CHIPS_PARSED) { 709 for (int i = 0; i < mPendingChips.size(); i++) { 710 String current = mPendingChips.get(i); 711 int tokenStart = editable.toString().indexOf(current); 712 int tokenEnd = tokenStart + current.length(); 713 if (tokenStart >= 0) { 714 // When we have a valid token, include it with the token 715 // to the left. 716 if (tokenEnd < editable.length() - 2 717 && editable.charAt(tokenEnd) == COMMIT_CHAR_COMMA) { 718 tokenEnd++; 719 } 720 createReplacementChip(tokenStart, tokenEnd, editable); 721 } 722 mPendingChipsCount--; 723 } 724 sanitizeEnd(); 725 } else { 726 mNoChips = true; 727 } 728 729 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0 730 && mTemporaryRecipients.size() <= RecipientAlternatesAdapter.MAX_LOOKUPS) { 731 if (hasFocus() || mTemporaryRecipients.size() < CHIP_LIMIT) { 732 new RecipientReplacementTask().execute(); 733 mTemporaryRecipients = null; 734 } else { 735 // Create the "more" chip 736 mIndividualReplacements = new IndividualReplacementTask(); 737 mIndividualReplacements.execute(new ArrayList<RecipientChip>( 738 mTemporaryRecipients.subList(0, CHIP_LIMIT))); 739 740 createMoreChip(); 741 } 742 } else { 743 // There are too many recipients to look up, so just fall back 744 // to showing addresses for all of them. 745 mTemporaryRecipients = null; 746 createMoreChip(); 747 } 748 mPendingChipsCount = 0; 749 mPendingChips.clear(); 750 } 751 } 752 753 // Visible for testing. 754 /*package*/ int getViewWidth() { 755 return getWidth(); 756 } 757 758 /** 759 * Remove any characters after the last valid chip. 760 */ 761 // Visible for testing. 762 /*package*/ void sanitizeEnd() { 763 // Find the last chip; eliminate any commit characters after it. 764 RecipientChip[] chips = getSortedRecipients(); 765 if (chips != null && chips.length > 0) { 766 int end; 767 ImageSpan lastSpan; 768 mMoreChip = getMoreChip(); 769 if (mMoreChip != null) { 770 lastSpan = mMoreChip; 771 } else { 772 lastSpan = getLastChip(); 773 } 774 end = getSpannable().getSpanEnd(lastSpan); 775 Editable editable = getText(); 776 int length = editable.length(); 777 if (length > end) { 778 // See what characters occur after that and eliminate them. 779 if (Log.isLoggable(TAG, Log.DEBUG)) { 780 Log.d(TAG, "There were extra characters after the last tokenizable entry." 781 + editable); 782 } 783 editable.delete(end + 1, length); 784 } 785 } 786 } 787 788 /** 789 * Create a chip that represents just the email address of a recipient. At some later 790 * point, this chip will be attached to a real contact entry, if one exists. 791 */ 792 private void createReplacementChip(int tokenStart, int tokenEnd, Editable editable) { 793 if (alreadyHasChip(tokenStart, tokenEnd)) { 794 // There is already a chip present at this location. 795 // Don't recreate it. 796 return; 797 } 798 String token = editable.toString().substring(tokenStart, tokenEnd); 799 int commitCharIndex = token.trim().lastIndexOf(COMMIT_CHAR_COMMA); 800 if (commitCharIndex == token.length() - 1) { 801 token = token.substring(0, token.length() - 1); 802 } 803 RecipientEntry entry = createTokenizedEntry(token); 804 if (entry != null) { 805 String destText = createAddressText(entry); 806 // Always leave a blank space at the end of a chip. 807 int textLength = destText.length() - 1; 808 SpannableString chipText = new SpannableString(destText); 809 int end = getSelectionEnd(); 810 int start = mTokenizer.findTokenStart(getText(), end); 811 RecipientChip chip = null; 812 try { 813 if (!mNoChips) { 814 chip = constructChipSpan(entry, start, false); 815 chipText.setSpan(chip, 0, textLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 816 } 817 } catch (NullPointerException e) { 818 Log.e(TAG, e.getMessage(), e); 819 } 820 editable.replace(tokenStart, tokenEnd, chipText); 821 // Add this chip to the list of entries "to replace" 822 if (chip != null) { 823 if (mTemporaryRecipients == null) { 824 mTemporaryRecipients = new ArrayList<RecipientChip>(); 825 } 826 chip.setOriginalText(chipText.toString()); 827 mTemporaryRecipients.add(chip); 828 } 829 } 830 } 831 832 private RecipientEntry createTokenizedEntry(String token) { 833 if (TextUtils.isEmpty(token)) { 834 return null; 835 } 836 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(token); 837 String display = null; 838 if (isValid(token) && tokens != null && tokens.length > 0) { 839 // If we can get a name from tokenizing, then generate an entry from 840 // this. 841 display = tokens[0].getName(); 842 if (!TextUtils.isEmpty(display)) { 843 return RecipientEntry.constructGeneratedEntry(display, token); 844 } else { 845 display = tokens[0].getAddress(); 846 if (!TextUtils.isEmpty(display)) { 847 return RecipientEntry.constructFakeEntry(display); 848 } 849 } 850 } 851 // Unable to validate the token or to create a valid token from it. 852 // Just create a chip the user can edit. 853 String validatedToken = null; 854 if (mValidator != null && !mValidator.isValid(token)) { 855 // Try fixing up the entry using the validator. 856 validatedToken = mValidator.fixText(token).toString(); 857 if (!TextUtils.isEmpty(validatedToken)) { 858 if (validatedToken.contains(token)) { 859 // protect against the case of a validator with a null domain, 860 // which doesn't add a domain to the token 861 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(validatedToken); 862 if (tokenized.length > 0) { 863 validatedToken = tokenized[0].getAddress(); 864 } 865 } else { 866 // We ran into a case where the token was invalid and removed 867 // by the validator. In this case, just use the original token 868 // and let the user sort out the error chip. 869 validatedToken = null; 870 } 871 } 872 } 873 // Otherwise, fallback to just creating an editable email address chip. 874 return RecipientEntry 875 .constructFakeEntry(!TextUtils.isEmpty(validatedToken) ? validatedToken : token); 876 } 877 878 private boolean isValid(String text) { 879 return mValidator == null ? true : mValidator.isValid(text); 880 } 881 882 private String tokenizeAddress(String destination) { 883 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(destination); 884 if (tokens != null && tokens.length > 0) { 885 return tokens[0].getAddress(); 886 } 887 return destination; 888 } 889 890 @Override 891 public void setTokenizer(Tokenizer tokenizer) { 892 mTokenizer = tokenizer; 893 super.setTokenizer(mTokenizer); 894 } 895 896 @Override 897 public void setValidator(Validator validator) { 898 mValidator = validator; 899 super.setValidator(validator); 900 } 901 902 /** 903 * We cannot use the default mechanism for replaceText. Instead, 904 * we override onItemClickListener so we can get all the associated 905 * contact information including display text, address, and id. 906 */ 907 @Override 908 protected void replaceText(CharSequence text) { 909 return; 910 } 911 912 /** 913 * Dismiss any selected chips when the back key is pressed. 914 */ 915 @Override 916 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 917 if (keyCode == KeyEvent.KEYCODE_BACK) { 918 clearSelectedChip(); 919 } 920 return super.onKeyPreIme(keyCode, event); 921 } 922 923 /** 924 * Monitor key presses in this view to see if the user types 925 * any commit keys, which consist of ENTER, TAB, or DPAD_CENTER. 926 * If the user has entered text that has contact matches and types 927 * a commit key, create a chip from the topmost matching contact. 928 * If the user has entered text that has no contact matches and types 929 * a commit key, then create a chip from the text they have entered. 930 */ 931 @Override 932 public boolean onKeyUp(int keyCode, KeyEvent event) { 933 switch (keyCode) { 934 case KeyEvent.KEYCODE_ENTER: 935 case KeyEvent.KEYCODE_DPAD_CENTER: 936 if (event.hasNoModifiers()) { 937 if (commitDefault()) { 938 return true; 939 } 940 if (mSelectedChip != null) { 941 clearSelectedChip(); 942 return true; 943 } else if (focusNext()) { 944 return true; 945 } 946 } 947 break; 948 case KeyEvent.KEYCODE_TAB: 949 if (event.hasNoModifiers()) { 950 if (mSelectedChip != null) { 951 clearSelectedChip(); 952 } else { 953 commitDefault(); 954 } 955 if (focusNext()) { 956 return true; 957 } 958 } 959 } 960 return super.onKeyUp(keyCode, event); 961 } 962 963 private boolean focusNext() { 964 View next = focusSearch(View.FOCUS_DOWN); 965 if (next != null) { 966 next.requestFocus(); 967 return true; 968 } 969 return false; 970 } 971 972 /** 973 * Create a chip from the default selection. If the popup is showing, the 974 * default is the first item in the popup suggestions list. Otherwise, it is 975 * whatever the user had typed in. End represents where the the tokenizer 976 * should search for a token to turn into a chip. 977 * @return If a chip was created from a real contact. 978 */ 979 private boolean commitDefault() { 980 Editable editable = getText(); 981 int end = getSelectionEnd(); 982 int start = mTokenizer.findTokenStart(editable, end); 983 984 if (shouldCreateChip(start, end)) { 985 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 986 // In the middle of chip; treat this as an edit 987 // and commit the whole token. 988 if (whatEnd != getSelectionEnd()) { 989 handleEdit(start, whatEnd); 990 return true; 991 } 992 return commitChip(start, end , editable); 993 } 994 return false; 995 } 996 997 private void commitByCharacter() { 998 Editable editable = getText(); 999 int end = getSelectionEnd(); 1000 int start = mTokenizer.findTokenStart(editable, end); 1001 if (shouldCreateChip(start, end)) { 1002 commitChip(start, end, editable); 1003 } 1004 setSelection(getText().length()); 1005 } 1006 1007 private boolean commitChip(int start, int end, Editable editable) { 1008 ListAdapter adapter = getAdapter(); 1009 if (adapter != null && adapter.getCount() > 0 && enoughToFilter() 1010 && end == getSelectionEnd()) { 1011 // choose the first entry. 1012 submitItemAtPosition(0); 1013 dismissDropDown(); 1014 return true; 1015 } else { 1016 int tokenEnd = mTokenizer.findTokenEnd(editable, start); 1017 if (editable.length() > tokenEnd + 1) { 1018 char charAt = editable.charAt(tokenEnd + 1); 1019 if (charAt == COMMIT_CHAR_COMMA || charAt == COMMIT_CHAR_SEMICOLON) { 1020 tokenEnd++; 1021 } 1022 } 1023 String text = editable.toString().substring(start, tokenEnd).trim(); 1024 clearComposingText(); 1025 if (text != null && text.length() > 0 && !text.equals(" ")) { 1026 RecipientEntry entry = createTokenizedEntry(text); 1027 if (entry != null) { 1028 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1029 CharSequence chipText = createChip(entry, false); 1030 if (chipText != null && start > -1 && end > -1) { 1031 editable.replace(start, end, chipText); 1032 } 1033 } 1034 // Only dismiss the dropdown if it is related to the text we 1035 // just committed. 1036 // For paste, it may not be as there are possibly multiple 1037 // tokens being added. 1038 if (end == getSelectionEnd()) { 1039 dismissDropDown(); 1040 } 1041 sanitizeBetween(); 1042 return true; 1043 } 1044 } 1045 return false; 1046 } 1047 1048 // Visible for testing. 1049 /* package */ void sanitizeBetween() { 1050 // Find the last chip. 1051 RecipientChip[] recips = getSortedRecipients(); 1052 if (recips != null && recips.length > 0) { 1053 RecipientChip last = recips[recips.length - 1]; 1054 RecipientChip beforeLast = null; 1055 if (recips.length > 1) { 1056 beforeLast = recips[recips.length - 2]; 1057 } 1058 int startLooking = 0; 1059 int end = getSpannable().getSpanStart(last); 1060 if (beforeLast != null) { 1061 startLooking = getSpannable().getSpanEnd(beforeLast); 1062 Editable text = getText(); 1063 if (startLooking == -1 || startLooking > text.length() - 1) { 1064 // There is nothing after this chip. 1065 return; 1066 } 1067 if (text.charAt(startLooking) == ' ') { 1068 startLooking++; 1069 } 1070 } 1071 if (startLooking >= 0 && end >= 0 && startLooking < end) { 1072 getText().delete(startLooking, end); 1073 } 1074 } 1075 } 1076 1077 private boolean shouldCreateChip(int start, int end) { 1078 return !mNoChips && hasFocus() && enoughToFilter() && !alreadyHasChip(start, end); 1079 } 1080 1081 private boolean alreadyHasChip(int start, int end) { 1082 if (mNoChips) { 1083 return true; 1084 } 1085 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 1086 if ((chips == null || chips.length == 0)) { 1087 return false; 1088 } 1089 return true; 1090 } 1091 1092 private void handleEdit(int start, int end) { 1093 if (start == -1 || end == -1) { 1094 // This chip no longer exists in the field. 1095 dismissDropDown(); 1096 return; 1097 } 1098 // This is in the middle of a chip, so select out the whole chip 1099 // and commit it. 1100 Editable editable = getText(); 1101 setSelection(end); 1102 String text = getText().toString().substring(start, end); 1103 if (!TextUtils.isEmpty(text)) { 1104 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 1105 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1106 CharSequence chipText = createChip(entry, false); 1107 int selEnd = getSelectionEnd(); 1108 if (chipText != null && start > -1 && selEnd > -1) { 1109 editable.replace(start, selEnd, chipText); 1110 } 1111 } 1112 dismissDropDown(); 1113 } 1114 1115 /** 1116 * If there is a selected chip, delegate the key events 1117 * to the selected chip. 1118 */ 1119 @Override 1120 public boolean onKeyDown(int keyCode, KeyEvent event) { 1121 if (mSelectedChip != null && keyCode == KeyEvent.KEYCODE_DEL) { 1122 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1123 mAlternatesPopup.dismiss(); 1124 } 1125 removeChip(mSelectedChip); 1126 } 1127 1128 if (keyCode == KeyEvent.KEYCODE_ENTER && event.hasNoModifiers()) { 1129 return true; 1130 } 1131 1132 return super.onKeyDown(keyCode, event); 1133 } 1134 1135 // Visible for testing. 1136 /* package */ Spannable getSpannable() { 1137 return getText(); 1138 } 1139 1140 private int getChipStart(RecipientChip chip) { 1141 return getSpannable().getSpanStart(chip); 1142 } 1143 1144 private int getChipEnd(RecipientChip chip) { 1145 return getSpannable().getSpanEnd(chip); 1146 } 1147 1148 /** 1149 * Instead of filtering on the entire contents of the edit box, 1150 * this subclass method filters on the range from 1151 * {@link Tokenizer#findTokenStart} to {@link #getSelectionEnd} 1152 * if the length of that range meets or exceeds {@link #getThreshold} 1153 * and makes sure that the range is not already a Chip. 1154 */ 1155 @Override 1156 protected void performFiltering(CharSequence text, int keyCode) { 1157 if (enoughToFilter() && !isCompletedToken(text)) { 1158 int end = getSelectionEnd(); 1159 int start = mTokenizer.findTokenStart(text, end); 1160 // If this is a RecipientChip, don't filter 1161 // on its contents. 1162 Spannable span = getSpannable(); 1163 RecipientChip[] chips = span.getSpans(start, end, RecipientChip.class); 1164 if (chips != null && chips.length > 0) { 1165 return; 1166 } 1167 } 1168 super.performFiltering(text, keyCode); 1169 } 1170 1171 // Visible for testing. 1172 /*package*/ boolean isCompletedToken(CharSequence text) { 1173 if (TextUtils.isEmpty(text)) { 1174 return false; 1175 } 1176 // Check to see if this is a completed token before filtering. 1177 int end = text.length(); 1178 int start = mTokenizer.findTokenStart(text, end); 1179 String token = text.toString().substring(start, end).trim(); 1180 if (!TextUtils.isEmpty(token)) { 1181 char atEnd = token.charAt(token.length() - 1); 1182 return atEnd == COMMIT_CHAR_COMMA || atEnd == COMMIT_CHAR_SEMICOLON; 1183 } 1184 return false; 1185 } 1186 1187 private void clearSelectedChip() { 1188 if (mSelectedChip != null) { 1189 unselectChip(mSelectedChip); 1190 mSelectedChip = null; 1191 } 1192 setCursorVisible(true); 1193 } 1194 1195 /** 1196 * Monitor touch events in the RecipientEditTextView. 1197 * If the view does not have focus, any tap on the view 1198 * will just focus the view. If the view has focus, determine 1199 * if the touch target is a recipient chip. If it is and the chip 1200 * is not selected, select it and clear any other selected chips. 1201 * If it isn't, then select that chip. 1202 */ 1203 @Override 1204 public boolean onTouchEvent(MotionEvent event) { 1205 if (!isFocused()) { 1206 // Ignore any chip taps until this view is focused. 1207 return super.onTouchEvent(event); 1208 } 1209 boolean handled = super.onTouchEvent(event); 1210 int action = event.getAction(); 1211 boolean chipWasSelected = false; 1212 if (mSelectedChip == null) { 1213 mGestureDetector.onTouchEvent(event); 1214 } 1215 if (mCopyAddress == null && action == MotionEvent.ACTION_UP) { 1216 float x = event.getX(); 1217 float y = event.getY(); 1218 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 1219 RecipientChip currentChip = findChip(offset); 1220 if (currentChip != null) { 1221 if (action == MotionEvent.ACTION_UP) { 1222 if (mSelectedChip != null && mSelectedChip != currentChip) { 1223 clearSelectedChip(); 1224 mSelectedChip = selectChip(currentChip); 1225 } else if (mSelectedChip == null) { 1226 setSelection(getText().length()); 1227 commitDefault(); 1228 mSelectedChip = selectChip(currentChip); 1229 } else { 1230 onClick(mSelectedChip, offset, x, y); 1231 } 1232 } 1233 chipWasSelected = true; 1234 handled = true; 1235 } else if (mSelectedChip != null 1236 && mSelectedChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1237 chipWasSelected = true; 1238 } 1239 } 1240 if (action == MotionEvent.ACTION_UP && !chipWasSelected) { 1241 clearSelectedChip(); 1242 } 1243 return handled; 1244 } 1245 1246 private void scrollLineIntoView(int line) { 1247 if (mScrollView != null) { 1248 mScrollView.scrollBy(0, calculateOffsetFromBottom(line)); 1249 } 1250 } 1251 1252 private void showAlternates(RecipientChip currentChip, ListPopupWindow alternatesPopup, 1253 int width, Context context) { 1254 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1255 int bottom = calculateOffsetFromBottom(line); 1256 // Align the alternates popup with the left side of the View, 1257 // regardless of the position of the chip tapped. 1258 alternatesPopup.setWidth(width); 1259 setEnabled(false); 1260 alternatesPopup.setAnchorView(this); 1261 alternatesPopup.setVerticalOffset(bottom); 1262 alternatesPopup.setAdapter(createAlternatesAdapter(currentChip)); 1263 alternatesPopup.setOnItemClickListener(mAlternatesListener); 1264 // Clear the checked item. 1265 mCheckedItem = -1; 1266 alternatesPopup.show(); 1267 ListView listView = alternatesPopup.getListView(); 1268 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1269 // Checked item would be -1 if the adapter has not 1270 // loaded the view that should be checked yet. The 1271 // variable will be set correctly when onCheckedItemChanged 1272 // is called in a separate thread. 1273 if (mCheckedItem != -1) { 1274 listView.setItemChecked(mCheckedItem, true); 1275 mCheckedItem = -1; 1276 } 1277 } 1278 1279 // Dismiss listener for alterns and single address popup. 1280 @Override 1281 public void onDismiss() { 1282 setEnabled(true); 1283 } 1284 1285 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 1286 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 1287 mAlternatesLayout, this); 1288 } 1289 1290 private ListAdapter createSingleAddressAdapter(RecipientChip currentChip) { 1291 return new SingleRecipientArrayAdapter(getContext(), mAlternatesLayout, currentChip 1292 .getEntry()); 1293 } 1294 1295 @Override 1296 public void onCheckedItemChanged(int position) { 1297 ListView listView = mAlternatesPopup.getListView(); 1298 if (listView != null && listView.getCheckedItemCount() == 0) { 1299 listView.setItemChecked(position, true); 1300 } 1301 mCheckedItem = position; 1302 } 1303 1304 // TODO: This algorithm will need a lot of tweaking after more people have used 1305 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 1306 // what comes before the finger. 1307 private int putOffsetInRange(int o) { 1308 int offset = o; 1309 Editable text = getText(); 1310 int length = text.length(); 1311 // Remove whitespace from end to find "real end" 1312 int realLength = length; 1313 for (int i = length - 1; i >= 0; i--) { 1314 if (text.charAt(i) == ' ') { 1315 realLength--; 1316 } else { 1317 break; 1318 } 1319 } 1320 1321 // If the offset is beyond or at the end of the text, 1322 // leave it alone. 1323 if (offset >= realLength) { 1324 return offset; 1325 } 1326 Editable editable = getText(); 1327 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 1328 // Keep walking backward! 1329 offset--; 1330 } 1331 return offset; 1332 } 1333 1334 private int findText(Editable text, int offset) { 1335 if (text.charAt(offset) != ' ') { 1336 return offset; 1337 } 1338 return -1; 1339 } 1340 1341 private RecipientChip findChip(int offset) { 1342 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1343 // Find the chip that contains this offset. 1344 for (int i = 0; i < chips.length; i++) { 1345 RecipientChip chip = chips[i]; 1346 int start = getChipStart(chip); 1347 int end = getChipEnd(chip); 1348 if (offset >= start && offset <= end) { 1349 return chip; 1350 } 1351 } 1352 return null; 1353 } 1354 1355 // Visible for testing. 1356 // Use this method to generate text to add to the list of addresses. 1357 /*package*/ String createAddressText(RecipientEntry entry) { 1358 String display = entry.getDisplayName(); 1359 String address = entry.getDestination(); 1360 if (TextUtils.isEmpty(display) || TextUtils.equals(display, address)) { 1361 display = null; 1362 } 1363 if (address != null) { 1364 // Tokenize out the address in case the address already 1365 // contained the username as well. 1366 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(address); 1367 if (tokenized != null && tokenized.length > 0) { 1368 address = tokenized[0].getAddress(); 1369 } 1370 } 1371 Rfc822Token token = new Rfc822Token(display, address, null); 1372 String trimmedDisplayText = token.toString().trim(); 1373 int index = trimmedDisplayText.indexOf(","); 1374 return index < trimmedDisplayText.length() - 1 ? (String) mTokenizer 1375 .terminateToken(trimmedDisplayText) : trimmedDisplayText; 1376 } 1377 1378 // Visible for testing. 1379 // Use this method to generate text to display in a chip. 1380 /*package*/ String createChipDisplayText(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 if (!TextUtils.isEmpty(display)) { 1395 return display; 1396 } else if (!TextUtils.isEmpty(address)){ 1397 return address; 1398 } else { 1399 return new Rfc822Token(display, address, null).toString(); 1400 } 1401 } 1402 1403 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 1404 String displayText = createAddressText(entry); 1405 if (TextUtils.isEmpty(displayText)) { 1406 return null; 1407 } 1408 SpannableString chipText = null; 1409 // Always leave a blank space at the end of a chip. 1410 int end = getSelectionEnd(); 1411 int start = mTokenizer.findTokenStart(getText(), end); 1412 int textLength = displayText.length()-1; 1413 chipText = new SpannableString(displayText); 1414 if (!mNoChips) { 1415 try { 1416 RecipientChip chip = constructChipSpan(entry, start, pressed); 1417 chipText.setSpan(chip, 0, textLength, 1418 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1419 chip.setOriginalText(chipText.toString()); 1420 } catch (NullPointerException e) { 1421 Log.e(TAG, e.getMessage(), e); 1422 return null; 1423 } 1424 } 1425 return chipText; 1426 } 1427 1428 /** 1429 * When an item in the suggestions list has been clicked, create a chip from the 1430 * contact information of the selected item. 1431 */ 1432 @Override 1433 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1434 submitItemAtPosition(position); 1435 } 1436 1437 private void submitItemAtPosition(int position) { 1438 RecipientEntry entry = createValidatedEntry( 1439 (RecipientEntry)getAdapter().getItem(position)); 1440 if (entry == null) { 1441 return; 1442 } 1443 clearComposingText(); 1444 1445 int end = getSelectionEnd(); 1446 int start = mTokenizer.findTokenStart(getText(), end); 1447 1448 Editable editable = getText(); 1449 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1450 CharSequence chip = createChip(entry, false); 1451 if (chip != null && start >= 0 && end >= 0) { 1452 editable.replace(start, end, chip); 1453 } 1454 sanitizeBetween(); 1455 } 1456 1457 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1458 if (item == null) { 1459 return null; 1460 } 1461 final RecipientEntry entry; 1462 // If the display name and the address are the same, or if this is a 1463 // valid contact, but the destination is invalid, then make this a fake 1464 // recipient that is editable. 1465 String destination = item.getDestination(); 1466 if (RecipientEntry.isCreatedRecipient(item.getContactId()) 1467 && (TextUtils.isEmpty(item.getDisplayName()) 1468 || TextUtils.equals(item.getDisplayName(), destination) 1469 || (mValidator != null && !mValidator.isValid(destination)))) { 1470 entry = RecipientEntry.constructFakeEntry(destination); 1471 } else { 1472 entry = item; 1473 } 1474 return entry; 1475 } 1476 1477 /** Returns a collection of contact Id for each chip inside this View. */ 1478 /* package */ Collection<Long> getContactIds() { 1479 final Set<Long> result = new HashSet<Long>(); 1480 RecipientChip[] chips = getSortedRecipients(); 1481 if (chips != null) { 1482 for (RecipientChip chip : chips) { 1483 result.add(chip.getContactId()); 1484 } 1485 } 1486 return result; 1487 } 1488 1489 1490 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1491 /* package */ Collection<Long> getDataIds() { 1492 final Set<Long> result = new HashSet<Long>(); 1493 RecipientChip [] chips = getSortedRecipients(); 1494 if (chips != null) { 1495 for (RecipientChip chip : chips) { 1496 result.add(chip.getDataId()); 1497 } 1498 } 1499 return result; 1500 } 1501 1502 // Visible for testing. 1503 /* package */RecipientChip[] getSortedRecipients() { 1504 RecipientChip[] recips = getSpannable() 1505 .getSpans(0, getText().length(), RecipientChip.class); 1506 ArrayList<RecipientChip> recipientsList = new ArrayList<RecipientChip>(Arrays 1507 .asList(recips)); 1508 final Spannable spannable = getSpannable(); 1509 Collections.sort(recipientsList, new Comparator<RecipientChip>() { 1510 1511 @Override 1512 public int compare(RecipientChip first, RecipientChip second) { 1513 int firstStart = spannable.getSpanStart(first); 1514 int secondStart = spannable.getSpanStart(second); 1515 if (firstStart < secondStart) { 1516 return -1; 1517 } else if (firstStart > secondStart) { 1518 return 1; 1519 } else { 1520 return 0; 1521 } 1522 } 1523 }); 1524 return recipientsList.toArray(new RecipientChip[recipientsList.size()]); 1525 } 1526 1527 @Override 1528 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1529 return false; 1530 } 1531 1532 @Override 1533 public void onDestroyActionMode(ActionMode mode) { 1534 } 1535 1536 @Override 1537 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1538 return false; 1539 } 1540 1541 /** 1542 * No chips are selectable. 1543 */ 1544 @Override 1545 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1546 return false; 1547 } 1548 1549 // Visible for testing. 1550 /* package */ImageSpan getMoreChip() { 1551 MoreImageSpan[] moreSpans = getSpannable().getSpans(0, getText().length(), 1552 MoreImageSpan.class); 1553 return moreSpans != null && moreSpans.length > 0 ? moreSpans[0] : null; 1554 } 1555 1556 private MoreImageSpan createMoreSpan(int count) { 1557 String moreText = String.format(mMoreItem.getText().toString(), count); 1558 TextPaint morePaint = new TextPaint(getPaint()); 1559 morePaint.setTextSize(mMoreItem.getTextSize()); 1560 morePaint.setColor(mMoreItem.getCurrentTextColor()); 1561 int width = (int)morePaint.measureText(moreText) + mMoreItem.getPaddingLeft() 1562 + mMoreItem.getPaddingRight(); 1563 int height = getLineHeight(); 1564 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1565 Canvas canvas = new Canvas(drawable); 1566 int adjustedHeight = height; 1567 Layout layout = getLayout(); 1568 if (layout != null) { 1569 adjustedHeight -= layout.getLineDescent(0); 1570 } 1571 canvas.drawText(moreText, 0, moreText.length(), 0, adjustedHeight, morePaint); 1572 1573 Drawable result = new BitmapDrawable(getResources(), drawable); 1574 result.setBounds(0, 0, width, height); 1575 return new MoreImageSpan(result); 1576 } 1577 1578 // Visible for testing. 1579 /*package*/ void createMoreChipPlainText() { 1580 // Take the first <= CHIP_LIMIT addresses and get to the end of the second one. 1581 Editable text = getText(); 1582 int start = 0; 1583 int end = start; 1584 for (int i = 0; i < CHIP_LIMIT; i++) { 1585 end = movePastTerminators(mTokenizer.findTokenEnd(text, start)); 1586 start = end; // move to the next token and get its end. 1587 } 1588 // Now, count total addresses. 1589 start = 0; 1590 int tokenCount = countTokens(text); 1591 MoreImageSpan moreSpan = createMoreSpan(tokenCount - CHIP_LIMIT); 1592 SpannableString chipText = new SpannableString(text.subSequence(end, text.length())); 1593 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1594 text.replace(end, text.length(), chipText); 1595 mMoreChip = moreSpan; 1596 } 1597 1598 // Visible for testing. 1599 /* package */int countTokens(Editable text) { 1600 int tokenCount = 0; 1601 int start = 0; 1602 while (start < text.length()) { 1603 start = movePastTerminators(mTokenizer.findTokenEnd(text, start)); 1604 tokenCount++; 1605 if (start >= text.length()) { 1606 break; 1607 } 1608 } 1609 return tokenCount; 1610 } 1611 1612 /** 1613 * Create the more chip. The more chip is text that replaces any chips that 1614 * do not fit in the pre-defined available space when the 1615 * RecipientEditTextView loses focus. 1616 */ 1617 // Visible for testing. 1618 /* package */ void createMoreChip() { 1619 if (mNoChips) { 1620 createMoreChipPlainText(); 1621 return; 1622 } 1623 1624 if (!mShouldShrink) { 1625 return; 1626 } 1627 1628 ImageSpan[] tempMore = getSpannable().getSpans(0, getText().length(), MoreImageSpan.class); 1629 if (tempMore.length > 0) { 1630 getSpannable().removeSpan(tempMore[0]); 1631 } 1632 RecipientChip[] recipients = getSortedRecipients(); 1633 1634 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1635 mMoreChip = null; 1636 return; 1637 } 1638 Spannable spannable = getSpannable(); 1639 int numRecipients = recipients.length; 1640 int overage = numRecipients - CHIP_LIMIT; 1641 MoreImageSpan moreSpan = createMoreSpan(overage); 1642 mRemovedSpans = new ArrayList<RecipientChip>(); 1643 int totalReplaceStart = 0; 1644 int totalReplaceEnd = 0; 1645 Editable text = getText(); 1646 for (int i = numRecipients - overage; i < recipients.length; i++) { 1647 mRemovedSpans.add(recipients[i]); 1648 if (i == numRecipients - overage) { 1649 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1650 } 1651 if (i == recipients.length - 1) { 1652 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1653 } 1654 if (mTemporaryRecipients == null || !mTemporaryRecipients.contains(recipients[i])) { 1655 int spanStart = spannable.getSpanStart(recipients[i]); 1656 int spanEnd = spannable.getSpanEnd(recipients[i]); 1657 recipients[i].setOriginalText(text.toString().substring(spanStart, spanEnd)); 1658 } 1659 spannable.removeSpan(recipients[i]); 1660 } 1661 if (totalReplaceEnd < text.length()) { 1662 totalReplaceEnd = text.length(); 1663 } 1664 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1665 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1666 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1667 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1668 text.replace(start, end, chipText); 1669 mMoreChip = moreSpan; 1670 } 1671 1672 /** 1673 * Replace the more chip, if it exists, with all of the recipient chips it had 1674 * replaced when the RecipientEditTextView gains focus. 1675 */ 1676 // Visible for testing. 1677 /*package*/ void removeMoreChip() { 1678 if (mMoreChip != null) { 1679 Spannable span = getSpannable(); 1680 span.removeSpan(mMoreChip); 1681 mMoreChip = null; 1682 // Re-add the spans that were removed. 1683 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1684 // Recreate each removed span. 1685 RecipientChip[] recipients = getSortedRecipients(); 1686 // Start the search for tokens after the last currently visible 1687 // chip. 1688 if (recipients == null || recipients.length == 0) { 1689 return; 1690 } 1691 int end = span.getSpanEnd(recipients[recipients.length - 1]); 1692 Editable editable = getText(); 1693 for (RecipientChip chip : mRemovedSpans) { 1694 int chipStart; 1695 int chipEnd; 1696 String token; 1697 // Need to find the location of the chip, again. 1698 token = (String) chip.getOriginalText(); 1699 // As we find the matching recipient for the remove spans, 1700 // reduce the size of the string we need to search. 1701 // That way, if there are duplicates, we always find the correct 1702 // recipient. 1703 chipStart = editable.toString().indexOf(token, end); 1704 end = chipEnd = Math.min(editable.length(), chipStart + token.length()); 1705 // Only set the span if we found a matching token. 1706 if (chipStart != -1) { 1707 editable.setSpan(chip, chipStart, chipEnd, 1708 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1709 } 1710 } 1711 mRemovedSpans.clear(); 1712 } 1713 } 1714 } 1715 1716 /** 1717 * Show specified chip as selected. If the RecipientChip is just an email address, 1718 * selecting the chip will take the contents of the chip and place it at 1719 * the end of the RecipientEditTextView for inline editing. If the 1720 * RecipientChip is a complete contact, then selecting the chip 1721 * will change the background color of the chip, show the delete icon, 1722 * and a popup window with the address in use highlighted and any other 1723 * alternate addresses for the contact. 1724 * @param currentChip Chip to select. 1725 * @return A RecipientChip in the selected state or null if the chip 1726 * just contained an email address. 1727 */ 1728 private RecipientChip selectChip(RecipientChip currentChip) { 1729 if (currentChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1730 CharSequence text = currentChip.getValue(); 1731 Editable editable = getText(); 1732 removeChip(currentChip); 1733 editable.append(text); 1734 setCursorVisible(true); 1735 setSelection(editable.length()); 1736 return new RecipientChip(null, RecipientEntry.constructFakeEntry((String) text), -1); 1737 } else if (currentChip.getContactId() == RecipientEntry.GENERATED_CONTACT) { 1738 int start = getChipStart(currentChip); 1739 int end = getChipEnd(currentChip); 1740 getSpannable().removeSpan(currentChip); 1741 RecipientChip newChip; 1742 try { 1743 if (mNoChips) { 1744 return null; 1745 } 1746 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1747 } catch (NullPointerException e) { 1748 Log.e(TAG, e.getMessage(), e); 1749 return null; 1750 } 1751 Editable editable = getText(); 1752 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1753 if (start == -1 || end == -1) { 1754 Log.d(TAG, "The chip being selected no longer exists but should."); 1755 } else { 1756 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1757 } 1758 newChip.setSelected(true); 1759 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1760 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1761 } 1762 showAddress(newChip, mAddressPopup, getWidth(), getContext()); 1763 setCursorVisible(false); 1764 return newChip; 1765 } else { 1766 int start = getChipStart(currentChip); 1767 int end = getChipEnd(currentChip); 1768 getSpannable().removeSpan(currentChip); 1769 RecipientChip newChip; 1770 try { 1771 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1772 } catch (NullPointerException e) { 1773 Log.e(TAG, e.getMessage(), e); 1774 return null; 1775 } 1776 Editable editable = getText(); 1777 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1778 if (start == -1 || end == -1) { 1779 Log.d(TAG, "The chip being selected no longer exists but should."); 1780 } else { 1781 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1782 } 1783 newChip.setSelected(true); 1784 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1785 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1786 } 1787 showAlternates(newChip, mAlternatesPopup, getWidth(), getContext()); 1788 setCursorVisible(false); 1789 return newChip; 1790 } 1791 } 1792 1793 1794 private void showAddress(final RecipientChip currentChip, final ListPopupWindow popup, 1795 int width, Context context) { 1796 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1797 int bottom = calculateOffsetFromBottom(line); 1798 // Align the alternates popup with the left side of the View, 1799 // regardless of the position of the chip tapped. 1800 setEnabled(false); 1801 popup.setWidth(width); 1802 popup.setAnchorView(this); 1803 popup.setVerticalOffset(bottom); 1804 popup.setAdapter(createSingleAddressAdapter(currentChip)); 1805 popup.setOnItemClickListener(new OnItemClickListener() { 1806 @Override 1807 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1808 unselectChip(currentChip); 1809 popup.dismiss(); 1810 } 1811 }); 1812 popup.show(); 1813 ListView listView = popup.getListView(); 1814 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1815 listView.setItemChecked(0, true); 1816 } 1817 1818 /** 1819 * Remove selection from this chip. Unselecting a RecipientChip will render 1820 * the chip without a delete icon and with an unfocused background. This is 1821 * called when the RecipientChip no longer has focus. 1822 */ 1823 private void unselectChip(RecipientChip chip) { 1824 int start = getChipStart(chip); 1825 int end = getChipEnd(chip); 1826 Editable editable = getText(); 1827 mSelectedChip = null; 1828 if (start == -1 || end == -1) { 1829 Log.w(TAG, "The chip doesn't exist or may be a chip a user was editing"); 1830 setSelection(editable.length()); 1831 commitDefault(); 1832 } else { 1833 getSpannable().removeSpan(chip); 1834 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1835 editable.removeSpan(chip); 1836 try { 1837 if (!mNoChips) { 1838 editable.setSpan(constructChipSpan(chip.getEntry(), start, false), start, end, 1839 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1840 } 1841 } catch (NullPointerException e) { 1842 Log.e(TAG, e.getMessage(), e); 1843 } 1844 } 1845 setCursorVisible(true); 1846 setSelection(editable.length()); 1847 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1848 mAlternatesPopup.dismiss(); 1849 } 1850 } 1851 1852 /** 1853 * Return whether a touch event was inside the delete target of 1854 * a selected chip. It is in the delete target if: 1855 * 1) the x and y points of the event are within the 1856 * delete assset. 1857 * 2) the point tapped would have caused a cursor to appear 1858 * right after the selected chip. 1859 * @return boolean 1860 */ 1861 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1862 // Figure out the bounds of this chip and whether or not 1863 // the user clicked in the X portion. 1864 return chip.isSelected() && offset == getChipEnd(chip); 1865 } 1866 1867 /** 1868 * Remove the chip and any text associated with it from the RecipientEditTextView. 1869 */ 1870 // Visible for testing. 1871 /*pacakge*/ void removeChip(RecipientChip chip) { 1872 Spannable spannable = getSpannable(); 1873 int spanStart = spannable.getSpanStart(chip); 1874 int spanEnd = spannable.getSpanEnd(chip); 1875 Editable text = getText(); 1876 int toDelete = spanEnd; 1877 boolean wasSelected = chip == mSelectedChip; 1878 // Clear that there is a selected chip before updating any text. 1879 if (wasSelected) { 1880 mSelectedChip = null; 1881 } 1882 // Always remove trailing spaces when removing a chip. 1883 while (toDelete >= 0 && toDelete < text.length() && text.charAt(toDelete) == ' ') { 1884 toDelete++; 1885 } 1886 spannable.removeSpan(chip); 1887 text.delete(spanStart, toDelete); 1888 if (wasSelected) { 1889 clearSelectedChip(); 1890 } 1891 } 1892 1893 /** 1894 * Replace this currently selected chip with a new chip 1895 * that uses the contact data provided. 1896 */ 1897 // Visible for testing. 1898 /*package*/ void replaceChip(RecipientChip chip, RecipientEntry entry) { 1899 boolean wasSelected = chip == mSelectedChip; 1900 if (wasSelected) { 1901 mSelectedChip = null; 1902 } 1903 int start = getChipStart(chip); 1904 int end = getChipEnd(chip); 1905 getSpannable().removeSpan(chip); 1906 Editable editable = getText(); 1907 CharSequence chipText = createChip(entry, false); 1908 if (chipText != null) { 1909 if (start == -1 || end == -1) { 1910 Log.e(TAG, "The chip to replace does not exist but should."); 1911 editable.insert(0, chipText); 1912 } else { 1913 if (!TextUtils.isEmpty(chipText)) { 1914 // There may be a space to replace with this chip's new 1915 // associated 1916 // space. Check for it 1917 int toReplace = end; 1918 while (toReplace >= 0 && toReplace < editable.length() 1919 && editable.charAt(toReplace) == ' ') { 1920 toReplace++; 1921 } 1922 editable.replace(start, toReplace, chipText); 1923 } 1924 } 1925 } 1926 setCursorVisible(true); 1927 if (wasSelected) { 1928 clearSelectedChip(); 1929 } 1930 } 1931 1932 /** 1933 * Handle click events for a chip. When a selected chip receives a click 1934 * event, see if that event was in the delete icon. If so, delete it. 1935 * Otherwise, unselect the chip. 1936 */ 1937 public void onClick(RecipientChip chip, int offset, float x, float y) { 1938 if (chip.isSelected()) { 1939 if (isInDelete(chip, offset, x, y)) { 1940 removeChip(chip); 1941 } else { 1942 clearSelectedChip(); 1943 } 1944 } 1945 } 1946 1947 private boolean chipsPending() { 1948 return mPendingChipsCount > 0 || (mRemovedSpans != null && mRemovedSpans.size() > 0); 1949 } 1950 1951 @Override 1952 public void removeTextChangedListener(TextWatcher watcher) { 1953 mTextWatcher = null; 1954 super.removeTextChangedListener(watcher); 1955 } 1956 1957 private class RecipientTextWatcher implements TextWatcher { 1958 @Override 1959 public void afterTextChanged(Editable s) { 1960 // If the text has been set to null or empty, make sure we remove 1961 // all the spans we applied. 1962 if (TextUtils.isEmpty(s)) { 1963 // Remove all the chips spans. 1964 Spannable spannable = getSpannable(); 1965 RecipientChip[] chips = spannable.getSpans(0, getText().length(), 1966 RecipientChip.class); 1967 for (RecipientChip chip : chips) { 1968 spannable.removeSpan(chip); 1969 } 1970 if (mMoreChip != null) { 1971 spannable.removeSpan(mMoreChip); 1972 } 1973 return; 1974 } 1975 // Get whether there are any recipients pending addition to the 1976 // view. If there are, don't do anything in the text watcher. 1977 if (chipsPending()) { 1978 return; 1979 } 1980 // If the user is editing a chip, don't clear it. 1981 if (mSelectedChip != null 1982 && mSelectedChip.getContactId() != RecipientEntry.INVALID_CONTACT) { 1983 setCursorVisible(true); 1984 setSelection(getText().length()); 1985 clearSelectedChip(); 1986 } 1987 int length = s.length(); 1988 // Make sure there is content there to parse and that it is 1989 // not just the commit character. 1990 if (length > 1) { 1991 char last; 1992 int end = getSelectionEnd() == 0 ? 0 : getSelectionEnd() - 1; 1993 int len = length() - 1; 1994 if (end != len) { 1995 last = s.charAt(end); 1996 } else { 1997 last = s.charAt(len); 1998 } 1999 if (last == COMMIT_CHAR_SEMICOLON || last == COMMIT_CHAR_COMMA) { 2000 commitByCharacter(); 2001 } else if (last == COMMIT_CHAR_SPACE) { 2002 // Check if this is a valid email address. If it is, 2003 // commit it. 2004 String text = getText().toString(); 2005 int tokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 2006 String sub = text.substring(tokenStart, mTokenizer.findTokenEnd(text, 2007 tokenStart)); 2008 if (!TextUtils.isEmpty(sub) && mValidator != null && mValidator.isValid(sub)) { 2009 commitByCharacter(); 2010 } 2011 } 2012 } 2013 } 2014 2015 @Override 2016 public void onTextChanged(CharSequence s, int start, int before, int count) { 2017 // Do nothing. 2018 } 2019 2020 @Override 2021 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 2022 // Do nothing. 2023 } 2024 } 2025 2026 /** 2027 * Handles pasting a {@link ClipData} to this {@link RecipientEditTextView}. 2028 */ 2029 private void handlePasteClip(ClipData clip) { 2030 removeTextChangedListener(mTextWatcher); 2031 2032 if (clip != null && clip.getDescription().hasMimeType(ClipDescription.MIMETYPE_TEXT_PLAIN)){ 2033 for (int i = 0; i < clip.getItemCount(); i++) { 2034 CharSequence paste = clip.getItemAt(i).getText(); 2035 if (paste != null) { 2036 int start = getSelectionStart(); 2037 int end = getSelectionEnd(); 2038 Editable editable = getText(); 2039 if (start >= 0 && end >= 0 && start != end) { 2040 editable.append(paste, start, end); 2041 } else { 2042 editable.insert(end, paste); 2043 } 2044 handlePasteAndReplace(); 2045 } 2046 } 2047 } 2048 2049 mHandler.post(mAddTextWatcher); 2050 } 2051 2052 @Override 2053 public boolean onTextContextMenuItem(int id) { 2054 if (id == android.R.id.paste) { 2055 ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService( 2056 Context.CLIPBOARD_SERVICE); 2057 handlePasteClip(clipboard.getPrimaryClip()); 2058 return true; 2059 } 2060 return super.onTextContextMenuItem(id); 2061 } 2062 2063 private void handlePasteAndReplace() { 2064 ArrayList<RecipientChip> created = handlePaste(); 2065 if (created != null && created.size() > 0) { 2066 // Perform reverse lookups on the pasted contacts. 2067 IndividualReplacementTask replace = new IndividualReplacementTask(); 2068 replace.execute(created); 2069 } 2070 } 2071 2072 // Visible for testing. 2073 /* package */ArrayList<RecipientChip> handlePaste() { 2074 String text = getText().toString(); 2075 int originalTokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 2076 String lastAddress = text.substring(originalTokenStart); 2077 int tokenStart = originalTokenStart; 2078 int prevTokenStart = tokenStart; 2079 RecipientChip findChip = null; 2080 ArrayList<RecipientChip> created = new ArrayList<RecipientChip>(); 2081 if (tokenStart != 0) { 2082 // There are things before this! 2083 while (tokenStart != 0 && findChip == null) { 2084 prevTokenStart = tokenStart; 2085 tokenStart = mTokenizer.findTokenStart(text, tokenStart); 2086 findChip = findChip(tokenStart); 2087 } 2088 if (tokenStart != originalTokenStart) { 2089 if (findChip != null) { 2090 tokenStart = prevTokenStart; 2091 } 2092 int tokenEnd; 2093 RecipientChip createdChip; 2094 while (tokenStart < originalTokenStart) { 2095 tokenEnd = movePastTerminators(mTokenizer.findTokenEnd(text, tokenStart)); 2096 commitChip(tokenStart, tokenEnd, getText()); 2097 createdChip = findChip(tokenStart); 2098 // +1 for the space at the end. 2099 tokenStart = getSpannable().getSpanEnd(createdChip) + 1; 2100 created.add(createdChip); 2101 } 2102 } 2103 } 2104 // Take a look at the last token. If the token has been completed with a 2105 // commit character, create a chip. 2106 if (isCompletedToken(lastAddress)) { 2107 Editable editable = getText(); 2108 tokenStart = editable.toString().indexOf(lastAddress, originalTokenStart); 2109 commitChip(tokenStart, editable.length(), editable); 2110 created.add(findChip(tokenStart)); 2111 } 2112 return created; 2113 } 2114 2115 // Visible for testing. 2116 /* package */int movePastTerminators(int tokenEnd) { 2117 if (tokenEnd >= length()) { 2118 return tokenEnd; 2119 } 2120 char atEnd = getText().toString().charAt(tokenEnd); 2121 if (atEnd == COMMIT_CHAR_COMMA || atEnd == COMMIT_CHAR_SEMICOLON) { 2122 tokenEnd++; 2123 } 2124 // This token had not only an end token character, but also a space 2125 // separating it from the next token. 2126 if (tokenEnd < length() && getText().toString().charAt(tokenEnd) == ' ') { 2127 tokenEnd++; 2128 } 2129 return tokenEnd; 2130 } 2131 2132 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 2133 private RecipientChip createFreeChip(RecipientEntry entry) { 2134 try { 2135 if (mNoChips) { 2136 return null; 2137 } 2138 return constructChipSpan(entry, -1, false); 2139 } catch (NullPointerException e) { 2140 Log.e(TAG, e.getMessage(), e); 2141 return null; 2142 } 2143 } 2144 2145 @Override 2146 protected Void doInBackground(Void... params) { 2147 if (mIndividualReplacements != null) { 2148 mIndividualReplacements.cancel(true); 2149 } 2150 // For each chip in the list, look up the matching contact. 2151 // If there is a match, replace that chip with the matching 2152 // chip. 2153 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 2154 RecipientChip[] existingChips = getSortedRecipients(); 2155 for (int i = 0; i < existingChips.length; i++) { 2156 originalRecipients.add(existingChips[i]); 2157 } 2158 if (mRemovedSpans != null) { 2159 originalRecipients.addAll(mRemovedSpans); 2160 } 2161 String[] addresses = new String[originalRecipients.size()]; 2162 for (int i = 0; i < originalRecipients.size(); i++) { 2163 addresses[i] = createAddressText(originalRecipients.get(i).getEntry()); 2164 } 2165 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 2166 .getMatchingRecipients(getContext(), addresses); 2167 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 2168 for (final RecipientChip temp : originalRecipients) { 2169 RecipientEntry entry = null; 2170 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 2171 && getSpannable().getSpanStart(temp) != -1) { 2172 // Replace this. 2173 entry = createValidatedEntry(entries.get(tokenizeAddress(temp.getEntry() 2174 .getDestination()))); 2175 } 2176 if (entry != null) { 2177 replacements.add(createFreeChip(entry)); 2178 } else { 2179 replacements.add(temp); 2180 } 2181 } 2182 if (replacements != null && replacements.size() > 0) { 2183 mHandler.post(new Runnable() { 2184 @Override 2185 public void run() { 2186 SpannableStringBuilder text = new SpannableStringBuilder(getText() 2187 .toString()); 2188 Editable oldText = getText(); 2189 int start, end; 2190 int i = 0; 2191 for (RecipientChip chip : originalRecipients) { 2192 start = oldText.getSpanStart(chip); 2193 if (start != -1) { 2194 end = oldText.getSpanEnd(chip); 2195 oldText.removeSpan(chip); 2196 // Leave a spot for the space! 2197 RecipientChip replacement = replacements.get(i); 2198 text.setSpan(replacement, start, end, 2199 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 2200 replacement.setOriginalText(text.toString().substring(start, end)); 2201 } 2202 i++; 2203 } 2204 originalRecipients.clear(); 2205 setText(text); 2206 } 2207 }); 2208 } 2209 return null; 2210 } 2211 } 2212 2213 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 2214 @SuppressWarnings("unchecked") 2215 @Override 2216 protected Void doInBackground(Object... params) { 2217 // For each chip in the list, look up the matching contact. 2218 // If there is a match, replace that chip with the matching 2219 // chip. 2220 final ArrayList<RecipientChip> originalRecipients = 2221 (ArrayList<RecipientChip>) params[0]; 2222 String[] addresses = new String[originalRecipients.size()]; 2223 for (int i = 0; i < originalRecipients.size(); i++) { 2224 addresses[i] = createAddressText(originalRecipients.get(i).getEntry()); 2225 } 2226 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 2227 .getMatchingRecipients(getContext(), addresses); 2228 for (final RecipientChip temp : originalRecipients) { 2229 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 2230 && getSpannable().getSpanStart(temp) != -1) { 2231 // Replace this. 2232 final RecipientEntry entry = createValidatedEntry(entries 2233 .get(tokenizeAddress(temp.getEntry().getDestination()).toLowerCase())); 2234 if (entry != null) { 2235 mHandler.post(new Runnable() { 2236 @Override 2237 public void run() { 2238 replaceChip(temp, entry); 2239 } 2240 }); 2241 } 2242 } 2243 } 2244 return null; 2245 } 2246 } 2247 2248 2249 /** 2250 * MoreImageSpan is a simple class created for tracking the existence of a 2251 * more chip across activity restarts/ 2252 */ 2253 private class MoreImageSpan extends ImageSpan { 2254 public MoreImageSpan(Drawable b) { 2255 super(b); 2256 } 2257 } 2258 2259 @Override 2260 public boolean onDown(MotionEvent e) { 2261 return false; 2262 } 2263 2264 @Override 2265 public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { 2266 // Do nothing. 2267 return false; 2268 } 2269 2270 @Override 2271 public void onLongPress(MotionEvent event) { 2272 if (mSelectedChip != null) { 2273 return; 2274 } 2275 float x = event.getX(); 2276 float y = event.getY(); 2277 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 2278 RecipientChip currentChip = findChip(offset); 2279 if (currentChip != null) { 2280 if (mDragEnabled) { 2281 // Start drag-and-drop for the selected chip. 2282 startDrag(currentChip); 2283 } else { 2284 // Copy the selected chip email address. 2285 showCopyDialog(currentChip.getEntry().getDestination()); 2286 } 2287 } 2288 } 2289 2290 /** 2291 * Enables drag-and-drop for chips. 2292 */ 2293 public void enableDrag() { 2294 mDragEnabled = true; 2295 } 2296 2297 /** 2298 * Starts drag-and-drop for the selected chip. 2299 */ 2300 private void startDrag(RecipientChip currentChip) { 2301 String address = currentChip.getEntry().getDestination(); 2302 ClipData data = ClipData.newPlainText(address, address + COMMIT_CHAR_COMMA); 2303 2304 // Start drag mode. 2305 startDrag(data, new RecipientChipShadow(currentChip), null, 0); 2306 2307 // Remove the current chip, so drag-and-drop will result in a move. 2308 // TODO (phamm): consider readd this chip if it's dropped outside a target. 2309 removeChip(currentChip); 2310 } 2311 2312 /** 2313 * Handles drag event. 2314 */ 2315 @Override 2316 public boolean onDragEvent(DragEvent event) { 2317 switch (event.getAction()) { 2318 case DragEvent.ACTION_DRAG_STARTED: 2319 // Only handle plain text drag and drop. 2320 return event.getClipDescription().hasMimeType(ClipDescription.MIMETYPE_TEXT_PLAIN); 2321 case DragEvent.ACTION_DRAG_ENTERED: 2322 requestFocus(); 2323 return true; 2324 case DragEvent.ACTION_DROP: 2325 handlePasteClip(event.getClipData()); 2326 return true; 2327 } 2328 return false; 2329 } 2330 2331 /** 2332 * Drag shadow for a {@link RecipientChip}. 2333 */ 2334 private final class RecipientChipShadow extends DragShadowBuilder { 2335 private final RecipientChip mChip; 2336 2337 public RecipientChipShadow(RecipientChip chip) { 2338 mChip = chip; 2339 } 2340 2341 @Override 2342 public void onProvideShadowMetrics(Point shadowSize, Point shadowTouchPoint) { 2343 Rect rect = mChip.getDrawable().getBounds(); 2344 shadowSize.set(rect.width(), rect.height()); 2345 shadowTouchPoint.set(rect.centerX(), rect.centerY()); 2346 } 2347 2348 @Override 2349 public void onDrawShadow(Canvas canvas) { 2350 mChip.getDrawable().draw(canvas); 2351 } 2352 } 2353 2354 private void showCopyDialog(final String address) { 2355 mCopyAddress = address; 2356 mCopyDialog.setTitle(address); 2357 mCopyDialog.setContentView(mCopyViewRes); 2358 mCopyDialog.setCancelable(true); 2359 mCopyDialog.setCanceledOnTouchOutside(true); 2360 mCopyDialog.findViewById(android.R.id.button1).setOnClickListener(this); 2361 mCopyDialog.setOnDismissListener(this); 2362 mCopyDialog.show(); 2363 } 2364 2365 @Override 2366 public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) { 2367 // Do nothing. 2368 return false; 2369 } 2370 2371 @Override 2372 public void onShowPress(MotionEvent e) { 2373 // Do nothing. 2374 } 2375 2376 @Override 2377 public boolean onSingleTapUp(MotionEvent e) { 2378 // Do nothing. 2379 return false; 2380 } 2381 2382 @Override 2383 public void onDismiss(DialogInterface dialog) { 2384 mCopyAddress = null; 2385 } 2386 2387 @Override 2388 public void onClick(View v) { 2389 // Copy this to the clipboard. 2390 ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService( 2391 Context.CLIPBOARD_SERVICE); 2392 clipboard.setPrimaryClip(ClipData.newPlainText("", mCopyAddress)); 2393 mCopyDialog.dismiss(); 2394 } 2395} 2396