RecipientEditTextView.java revision 5da0234c9a7108d3386039816c7469753b79c307
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 // Find the last chip; eliminate any commit characters after it. 785 RecipientChip[] chips = getSortedRecipients(); 786 if (chips != null && chips.length > 0) { 787 int end; 788 ImageSpan lastSpan; 789 mMoreChip = getMoreChip(); 790 if (mMoreChip != null) { 791 lastSpan = mMoreChip; 792 } else { 793 lastSpan = getLastChip(); 794 } 795 end = getSpannable().getSpanEnd(lastSpan); 796 Editable editable = getText(); 797 int length = editable.length(); 798 if (length > end) { 799 // See what characters occur after that and eliminate them. 800 if (Log.isLoggable(TAG, Log.DEBUG)) { 801 Log.d(TAG, "There were extra characters after the last tokenizable entry." 802 + editable); 803 } 804 editable.delete(end + 1, length); 805 } 806 } 807 } 808 809 /** 810 * Create a chip that represents just the email address of a recipient. At some later 811 * point, this chip will be attached to a real contact entry, if one exists. 812 */ 813 private void createReplacementChip(int tokenStart, int tokenEnd, Editable editable) { 814 if (alreadyHasChip(tokenStart, tokenEnd)) { 815 // There is already a chip present at this location. 816 // Don't recreate it. 817 return; 818 } 819 String token = editable.toString().substring(tokenStart, tokenEnd); 820 int commitCharIndex = token.trim().lastIndexOf(COMMIT_CHAR_COMMA); 821 if (commitCharIndex == token.length() - 1) { 822 token = token.substring(0, token.length() - 1); 823 } 824 RecipientEntry entry = createTokenizedEntry(token); 825 if (entry != null) { 826 String destText = createAddressText(entry); 827 // Always leave a blank space at the end of a chip. 828 int textLength = destText.length() - 1; 829 SpannableString chipText = new SpannableString(destText); 830 int end = getSelectionEnd(); 831 int start = mTokenizer.findTokenStart(getText(), end); 832 RecipientChip chip = null; 833 try { 834 if (!mNoChips) { 835 chip = constructChipSpan(entry, start, false); 836 chipText.setSpan(chip, 0, textLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 837 } 838 } catch (NullPointerException e) { 839 Log.e(TAG, e.getMessage(), e); 840 } 841 editable.replace(tokenStart, tokenEnd, chipText); 842 // Add this chip to the list of entries "to replace" 843 if (chip != null) { 844 if (mTemporaryRecipients == null) { 845 mTemporaryRecipients = new ArrayList<RecipientChip>(); 846 } 847 chip.setOriginalText(chipText.toString()); 848 mTemporaryRecipients.add(chip); 849 } 850 } 851 } 852 853 private RecipientEntry createTokenizedEntry(String token) { 854 if (TextUtils.isEmpty(token)) { 855 return null; 856 } 857 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(token); 858 String display = null; 859 if (isValid(token) && tokens != null && tokens.length > 0) { 860 // If we can get a name from tokenizing, then generate an entry from 861 // this. 862 display = tokens[0].getName(); 863 if (!TextUtils.isEmpty(display)) { 864 return RecipientEntry.constructGeneratedEntry(display, token); 865 } else { 866 display = tokens[0].getAddress(); 867 if (!TextUtils.isEmpty(display)) { 868 return RecipientEntry.constructFakeEntry(display); 869 } 870 } 871 } 872 // Unable to validate the token or to create a valid token from it. 873 // Just create a chip the user can edit. 874 String validatedToken = null; 875 if (mValidator != null && !mValidator.isValid(token)) { 876 // Try fixing up the entry using the validator. 877 validatedToken = mValidator.fixText(token).toString(); 878 if (!TextUtils.isEmpty(validatedToken)) { 879 if (validatedToken.contains(token)) { 880 // protect against the case of a validator with a null domain, 881 // which doesn't add a domain to the token 882 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(validatedToken); 883 if (tokenized.length > 0) { 884 validatedToken = tokenized[0].getAddress(); 885 } 886 } else { 887 // We ran into a case where the token was invalid and removed 888 // by the validator. In this case, just use the original token 889 // and let the user sort out the error chip. 890 validatedToken = null; 891 } 892 } 893 } 894 // Otherwise, fallback to just creating an editable email address chip. 895 return RecipientEntry 896 .constructFakeEntry(!TextUtils.isEmpty(validatedToken) ? validatedToken : token); 897 } 898 899 private boolean isValid(String text) { 900 return mValidator == null ? true : mValidator.isValid(text); 901 } 902 903 private String tokenizeAddress(String destination) { 904 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(destination); 905 if (tokens != null && tokens.length > 0) { 906 return tokens[0].getAddress(); 907 } 908 return destination; 909 } 910 911 @Override 912 public void setTokenizer(Tokenizer tokenizer) { 913 mTokenizer = tokenizer; 914 super.setTokenizer(mTokenizer); 915 } 916 917 @Override 918 public void setValidator(Validator validator) { 919 mValidator = validator; 920 super.setValidator(validator); 921 } 922 923 /** 924 * We cannot use the default mechanism for replaceText. Instead, 925 * we override onItemClickListener so we can get all the associated 926 * contact information including display text, address, and id. 927 */ 928 @Override 929 protected void replaceText(CharSequence text) { 930 return; 931 } 932 933 /** 934 * Dismiss any selected chips when the back key is pressed. 935 */ 936 @Override 937 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 938 if (keyCode == KeyEvent.KEYCODE_BACK) { 939 clearSelectedChip(); 940 } 941 return super.onKeyPreIme(keyCode, event); 942 } 943 944 /** 945 * Monitor key presses in this view to see if the user types 946 * any commit keys, which consist of ENTER, TAB, or DPAD_CENTER. 947 * If the user has entered text that has contact matches and types 948 * a commit key, create a chip from the topmost matching contact. 949 * If the user has entered text that has no contact matches and types 950 * a commit key, then create a chip from the text they have entered. 951 */ 952 @Override 953 public boolean onKeyUp(int keyCode, KeyEvent event) { 954 switch (keyCode) { 955 case KeyEvent.KEYCODE_ENTER: 956 case KeyEvent.KEYCODE_DPAD_CENTER: 957 if (event.hasNoModifiers()) { 958 if (commitDefault()) { 959 return true; 960 } 961 if (mSelectedChip != null) { 962 clearSelectedChip(); 963 return true; 964 } else if (focusNext()) { 965 return true; 966 } 967 } 968 break; 969 case KeyEvent.KEYCODE_TAB: 970 if (event.hasNoModifiers()) { 971 if (mSelectedChip != null) { 972 clearSelectedChip(); 973 } else { 974 commitDefault(); 975 } 976 if (focusNext()) { 977 return true; 978 } 979 } 980 } 981 return super.onKeyUp(keyCode, event); 982 } 983 984 private boolean focusNext() { 985 View next = focusSearch(View.FOCUS_DOWN); 986 if (next != null) { 987 next.requestFocus(); 988 return true; 989 } 990 return false; 991 } 992 993 /** 994 * Create a chip from the default selection. If the popup is showing, the 995 * default is the first item in the popup suggestions list. Otherwise, it is 996 * whatever the user had typed in. End represents where the the tokenizer 997 * should search for a token to turn into a chip. 998 * @return If a chip was created from a real contact. 999 */ 1000 private boolean commitDefault() { 1001 Editable editable = getText(); 1002 int end = getSelectionEnd(); 1003 int start = mTokenizer.findTokenStart(editable, end); 1004 1005 if (shouldCreateChip(start, end)) { 1006 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 1007 // In the middle of chip; treat this as an edit 1008 // and commit the whole token. 1009 if (whatEnd != getSelectionEnd()) { 1010 handleEdit(start, whatEnd); 1011 return true; 1012 } 1013 return commitChip(start, end , editable); 1014 } 1015 return false; 1016 } 1017 1018 private void commitByCharacter() { 1019 Editable editable = getText(); 1020 int end = getSelectionEnd(); 1021 int start = mTokenizer.findTokenStart(editable, end); 1022 if (shouldCreateChip(start, end)) { 1023 commitChip(start, end, editable); 1024 } 1025 setSelection(getText().length()); 1026 } 1027 1028 private boolean commitChip(int start, int end, Editable editable) { 1029 ListAdapter adapter = getAdapter(); 1030 if (adapter != null && adapter.getCount() > 0 && enoughToFilter() 1031 && end == getSelectionEnd()) { 1032 // choose the first entry. 1033 submitItemAtPosition(0); 1034 dismissDropDown(); 1035 return true; 1036 } else { 1037 int tokenEnd = mTokenizer.findTokenEnd(editable, start); 1038 if (editable.length() > tokenEnd + 1) { 1039 char charAt = editable.charAt(tokenEnd + 1); 1040 if (charAt == COMMIT_CHAR_COMMA || charAt == COMMIT_CHAR_SEMICOLON) { 1041 tokenEnd++; 1042 } 1043 } 1044 String text = editable.toString().substring(start, tokenEnd).trim(); 1045 clearComposingText(); 1046 if (text != null && text.length() > 0 && !text.equals(" ")) { 1047 RecipientEntry entry = createTokenizedEntry(text); 1048 if (entry != null) { 1049 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1050 CharSequence chipText = createChip(entry, false); 1051 if (chipText != null && start > -1 && end > -1) { 1052 editable.replace(start, end, chipText); 1053 } 1054 } 1055 // Only dismiss the dropdown if it is related to the text we 1056 // just committed. 1057 // For paste, it may not be as there are possibly multiple 1058 // tokens being added. 1059 if (end == getSelectionEnd()) { 1060 dismissDropDown(); 1061 } 1062 sanitizeBetween(); 1063 return true; 1064 } 1065 } 1066 return false; 1067 } 1068 1069 // Visible for testing. 1070 /* package */ void sanitizeBetween() { 1071 // Find the last chip. 1072 RecipientChip[] recips = getSortedRecipients(); 1073 if (recips != null && recips.length > 0) { 1074 RecipientChip last = recips[recips.length - 1]; 1075 RecipientChip beforeLast = null; 1076 if (recips.length > 1) { 1077 beforeLast = recips[recips.length - 2]; 1078 } 1079 int startLooking = 0; 1080 int end = getSpannable().getSpanStart(last); 1081 if (beforeLast != null) { 1082 startLooking = getSpannable().getSpanEnd(beforeLast); 1083 Editable text = getText(); 1084 if (startLooking == -1 || startLooking > text.length() - 1) { 1085 // There is nothing after this chip. 1086 return; 1087 } 1088 if (text.charAt(startLooking) == ' ') { 1089 startLooking++; 1090 } 1091 } 1092 if (startLooking >= 0 && end >= 0 && startLooking < end) { 1093 getText().delete(startLooking, end); 1094 } 1095 } 1096 } 1097 1098 private boolean shouldCreateChip(int start, int end) { 1099 return !mNoChips && hasFocus() && enoughToFilter() && !alreadyHasChip(start, end); 1100 } 1101 1102 private boolean alreadyHasChip(int start, int end) { 1103 if (mNoChips) { 1104 return true; 1105 } 1106 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 1107 if ((chips == null || chips.length == 0)) { 1108 return false; 1109 } 1110 return true; 1111 } 1112 1113 private void handleEdit(int start, int end) { 1114 if (start == -1 || end == -1) { 1115 // This chip no longer exists in the field. 1116 dismissDropDown(); 1117 return; 1118 } 1119 // This is in the middle of a chip, so select out the whole chip 1120 // and commit it. 1121 Editable editable = getText(); 1122 setSelection(end); 1123 String text = getText().toString().substring(start, end); 1124 if (!TextUtils.isEmpty(text)) { 1125 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 1126 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1127 CharSequence chipText = createChip(entry, false); 1128 int selEnd = getSelectionEnd(); 1129 if (chipText != null && start > -1 && selEnd > -1) { 1130 editable.replace(start, selEnd, chipText); 1131 } 1132 } 1133 dismissDropDown(); 1134 } 1135 1136 /** 1137 * If there is a selected chip, delegate the key events 1138 * to the selected chip. 1139 */ 1140 @Override 1141 public boolean onKeyDown(int keyCode, KeyEvent event) { 1142 if (mSelectedChip != null && keyCode == KeyEvent.KEYCODE_DEL) { 1143 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1144 mAlternatesPopup.dismiss(); 1145 } 1146 removeChip(mSelectedChip); 1147 } 1148 1149 if (keyCode == KeyEvent.KEYCODE_ENTER && event.hasNoModifiers()) { 1150 return true; 1151 } 1152 1153 return super.onKeyDown(keyCode, event); 1154 } 1155 1156 // Visible for testing. 1157 /* package */ Spannable getSpannable() { 1158 return getText(); 1159 } 1160 1161 private int getChipStart(RecipientChip chip) { 1162 return getSpannable().getSpanStart(chip); 1163 } 1164 1165 private int getChipEnd(RecipientChip chip) { 1166 return getSpannable().getSpanEnd(chip); 1167 } 1168 1169 /** 1170 * Instead of filtering on the entire contents of the edit box, 1171 * this subclass method filters on the range from 1172 * {@link Tokenizer#findTokenStart} to {@link #getSelectionEnd} 1173 * if the length of that range meets or exceeds {@link #getThreshold} 1174 * and makes sure that the range is not already a Chip. 1175 */ 1176 @Override 1177 protected void performFiltering(CharSequence text, int keyCode) { 1178 if (enoughToFilter() && !isCompletedToken(text)) { 1179 int end = getSelectionEnd(); 1180 int start = mTokenizer.findTokenStart(text, end); 1181 // If this is a RecipientChip, don't filter 1182 // on its contents. 1183 Spannable span = getSpannable(); 1184 RecipientChip[] chips = span.getSpans(start, end, RecipientChip.class); 1185 if (chips != null && chips.length > 0) { 1186 return; 1187 } 1188 } 1189 super.performFiltering(text, keyCode); 1190 } 1191 1192 // Visible for testing. 1193 /*package*/ boolean isCompletedToken(CharSequence text) { 1194 if (TextUtils.isEmpty(text)) { 1195 return false; 1196 } 1197 // Check to see if this is a completed token before filtering. 1198 int end = text.length(); 1199 int start = mTokenizer.findTokenStart(text, end); 1200 String token = text.toString().substring(start, end).trim(); 1201 if (!TextUtils.isEmpty(token)) { 1202 char atEnd = token.charAt(token.length() - 1); 1203 return atEnd == COMMIT_CHAR_COMMA || atEnd == COMMIT_CHAR_SEMICOLON; 1204 } 1205 return false; 1206 } 1207 1208 private void clearSelectedChip() { 1209 if (mSelectedChip != null) { 1210 unselectChip(mSelectedChip); 1211 mSelectedChip = null; 1212 } 1213 setCursorVisible(true); 1214 } 1215 1216 /** 1217 * Monitor touch events in the RecipientEditTextView. 1218 * If the view does not have focus, any tap on the view 1219 * will just focus the view. If the view has focus, determine 1220 * if the touch target is a recipient chip. If it is and the chip 1221 * is not selected, select it and clear any other selected chips. 1222 * If it isn't, then select that chip. 1223 */ 1224 @Override 1225 public boolean onTouchEvent(MotionEvent event) { 1226 if (!isFocused()) { 1227 // Ignore any chip taps until this view is focused. 1228 return super.onTouchEvent(event); 1229 } 1230 boolean handled = super.onTouchEvent(event); 1231 int action = event.getAction(); 1232 boolean chipWasSelected = false; 1233 if (mSelectedChip == null) { 1234 mGestureDetector.onTouchEvent(event); 1235 } 1236 if (mCopyAddress == null && action == MotionEvent.ACTION_UP) { 1237 float x = event.getX(); 1238 float y = event.getY(); 1239 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 1240 RecipientChip currentChip = findChip(offset); 1241 if (currentChip != null) { 1242 if (action == MotionEvent.ACTION_UP) { 1243 if (mSelectedChip != null && mSelectedChip != currentChip) { 1244 clearSelectedChip(); 1245 mSelectedChip = selectChip(currentChip); 1246 } else if (mSelectedChip == null) { 1247 setSelection(getText().length()); 1248 commitDefault(); 1249 mSelectedChip = selectChip(currentChip); 1250 } else { 1251 onClick(mSelectedChip, offset, x, y); 1252 } 1253 } 1254 chipWasSelected = true; 1255 handled = true; 1256 } else if (mSelectedChip != null 1257 && mSelectedChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1258 chipWasSelected = true; 1259 } 1260 } 1261 if (action == MotionEvent.ACTION_UP && !chipWasSelected) { 1262 clearSelectedChip(); 1263 } 1264 return handled; 1265 } 1266 1267 private void scrollLineIntoView(int line) { 1268 if (mScrollView != null) { 1269 mScrollView.scrollBy(0, calculateOffsetFromBottom(line)); 1270 } 1271 } 1272 1273 private void showAlternates(RecipientChip currentChip, ListPopupWindow alternatesPopup, 1274 int width, Context context) { 1275 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1276 int bottom = calculateOffsetFromBottom(line); 1277 // Align the alternates popup with the left side of the View, 1278 // regardless of the position of the chip tapped. 1279 alternatesPopup.setWidth(width); 1280 setEnabled(false); 1281 alternatesPopup.setAnchorView(this); 1282 alternatesPopup.setVerticalOffset(bottom); 1283 alternatesPopup.setAdapter(createAlternatesAdapter(currentChip)); 1284 alternatesPopup.setOnItemClickListener(mAlternatesListener); 1285 // Clear the checked item. 1286 mCheckedItem = -1; 1287 alternatesPopup.show(); 1288 ListView listView = alternatesPopup.getListView(); 1289 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1290 // Checked item would be -1 if the adapter has not 1291 // loaded the view that should be checked yet. The 1292 // variable will be set correctly when onCheckedItemChanged 1293 // is called in a separate thread. 1294 if (mCheckedItem != -1) { 1295 listView.setItemChecked(mCheckedItem, true); 1296 mCheckedItem = -1; 1297 } 1298 } 1299 1300 // Dismiss listener for alterns and single address popup. 1301 @Override 1302 public void onDismiss() { 1303 setEnabled(true); 1304 } 1305 1306 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 1307 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 1308 mAlternatesLayout, this); 1309 } 1310 1311 private ListAdapter createSingleAddressAdapter(RecipientChip currentChip) { 1312 return new SingleRecipientArrayAdapter(getContext(), mAlternatesLayout, currentChip 1313 .getEntry()); 1314 } 1315 1316 @Override 1317 public void onCheckedItemChanged(int position) { 1318 ListView listView = mAlternatesPopup.getListView(); 1319 if (listView != null && listView.getCheckedItemCount() == 0) { 1320 listView.setItemChecked(position, true); 1321 } 1322 mCheckedItem = position; 1323 } 1324 1325 // TODO: This algorithm will need a lot of tweaking after more people have used 1326 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 1327 // what comes before the finger. 1328 private int putOffsetInRange(int o) { 1329 int offset = o; 1330 Editable text = getText(); 1331 int length = text.length(); 1332 // Remove whitespace from end to find "real end" 1333 int realLength = length; 1334 for (int i = length - 1; i >= 0; i--) { 1335 if (text.charAt(i) == ' ') { 1336 realLength--; 1337 } else { 1338 break; 1339 } 1340 } 1341 1342 // If the offset is beyond or at the end of the text, 1343 // leave it alone. 1344 if (offset >= realLength) { 1345 return offset; 1346 } 1347 Editable editable = getText(); 1348 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 1349 // Keep walking backward! 1350 offset--; 1351 } 1352 return offset; 1353 } 1354 1355 private int findText(Editable text, int offset) { 1356 if (text.charAt(offset) != ' ') { 1357 return offset; 1358 } 1359 return -1; 1360 } 1361 1362 private RecipientChip findChip(int offset) { 1363 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1364 // Find the chip that contains this offset. 1365 for (int i = 0; i < chips.length; i++) { 1366 RecipientChip chip = chips[i]; 1367 int start = getChipStart(chip); 1368 int end = getChipEnd(chip); 1369 if (offset >= start && offset <= end) { 1370 return chip; 1371 } 1372 } 1373 return null; 1374 } 1375 1376 // Visible for testing. 1377 // Use this method to generate text to add to the list of addresses. 1378 /*package*/ String createAddressText(RecipientEntry entry) { 1379 String display = entry.getDisplayName(); 1380 String address = entry.getDestination(); 1381 if (TextUtils.isEmpty(display) || TextUtils.equals(display, address)) { 1382 display = null; 1383 } 1384 if (address != null) { 1385 // Tokenize out the address in case the address already 1386 // contained the username as well. 1387 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(address); 1388 if (tokenized != null && tokenized.length > 0) { 1389 address = tokenized[0].getAddress(); 1390 } 1391 } 1392 Rfc822Token token = new Rfc822Token(display, address, null); 1393 String trimmedDisplayText = token.toString().trim(); 1394 int index = trimmedDisplayText.indexOf(","); 1395 return index < trimmedDisplayText.length() - 1 ? (String) mTokenizer 1396 .terminateToken(trimmedDisplayText) : trimmedDisplayText; 1397 } 1398 1399 // Visible for testing. 1400 // Use this method to generate text to display in a chip. 1401 /*package*/ String createChipDisplayText(RecipientEntry entry) { 1402 String display = entry.getDisplayName(); 1403 String address = entry.getDestination(); 1404 if (TextUtils.isEmpty(display) || TextUtils.equals(display, address)) { 1405 display = null; 1406 } 1407 if (address != null) { 1408 // Tokenize out the address in case the address already 1409 // contained the username as well. 1410 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(address); 1411 if (tokenized != null && tokenized.length > 0) { 1412 address = tokenized[0].getAddress(); 1413 } 1414 } 1415 if (!TextUtils.isEmpty(display)) { 1416 return display; 1417 } else if (!TextUtils.isEmpty(address)){ 1418 return address; 1419 } else { 1420 return new Rfc822Token(display, address, null).toString(); 1421 } 1422 } 1423 1424 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 1425 String displayText = createAddressText(entry); 1426 if (TextUtils.isEmpty(displayText)) { 1427 return null; 1428 } 1429 SpannableString chipText = null; 1430 // Always leave a blank space at the end of a chip. 1431 int end = getSelectionEnd(); 1432 int start = mTokenizer.findTokenStart(getText(), end); 1433 int textLength = displayText.length()-1; 1434 chipText = new SpannableString(displayText); 1435 if (!mNoChips) { 1436 try { 1437 RecipientChip chip = constructChipSpan(entry, start, pressed); 1438 chipText.setSpan(chip, 0, textLength, 1439 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1440 chip.setOriginalText(chipText.toString()); 1441 } catch (NullPointerException e) { 1442 Log.e(TAG, e.getMessage(), e); 1443 return null; 1444 } 1445 } 1446 return chipText; 1447 } 1448 1449 /** 1450 * When an item in the suggestions list has been clicked, create a chip from the 1451 * contact information of the selected item. 1452 */ 1453 @Override 1454 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1455 submitItemAtPosition(position); 1456 } 1457 1458 private void submitItemAtPosition(int position) { 1459 RecipientEntry entry = createValidatedEntry( 1460 (RecipientEntry)getAdapter().getItem(position)); 1461 if (entry == null) { 1462 return; 1463 } 1464 clearComposingText(); 1465 1466 int end = getSelectionEnd(); 1467 int start = mTokenizer.findTokenStart(getText(), end); 1468 1469 Editable editable = getText(); 1470 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1471 CharSequence chip = createChip(entry, false); 1472 if (chip != null && start >= 0 && end >= 0) { 1473 editable.replace(start, end, chip); 1474 } 1475 sanitizeBetween(); 1476 } 1477 1478 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1479 if (item == null) { 1480 return null; 1481 } 1482 final RecipientEntry entry; 1483 // If the display name and the address are the same, or if this is a 1484 // valid contact, but the destination is invalid, then make this a fake 1485 // recipient that is editable. 1486 String destination = item.getDestination(); 1487 if (RecipientEntry.isCreatedRecipient(item.getContactId()) 1488 && (TextUtils.isEmpty(item.getDisplayName()) 1489 || TextUtils.equals(item.getDisplayName(), destination) 1490 || (mValidator != null && !mValidator.isValid(destination)))) { 1491 entry = RecipientEntry.constructFakeEntry(destination); 1492 } else { 1493 entry = item; 1494 } 1495 return entry; 1496 } 1497 1498 /** Returns a collection of contact Id for each chip inside this View. */ 1499 /* package */ Collection<Long> getContactIds() { 1500 final Set<Long> result = new HashSet<Long>(); 1501 RecipientChip[] chips = getSortedRecipients(); 1502 if (chips != null) { 1503 for (RecipientChip chip : chips) { 1504 result.add(chip.getContactId()); 1505 } 1506 } 1507 return result; 1508 } 1509 1510 1511 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1512 /* package */ Collection<Long> getDataIds() { 1513 final Set<Long> result = new HashSet<Long>(); 1514 RecipientChip [] chips = getSortedRecipients(); 1515 if (chips != null) { 1516 for (RecipientChip chip : chips) { 1517 result.add(chip.getDataId()); 1518 } 1519 } 1520 return result; 1521 } 1522 1523 // Visible for testing. 1524 /* package */RecipientChip[] getSortedRecipients() { 1525 RecipientChip[] recips = getSpannable() 1526 .getSpans(0, getText().length(), RecipientChip.class); 1527 ArrayList<RecipientChip> recipientsList = new ArrayList<RecipientChip>(Arrays 1528 .asList(recips)); 1529 final Spannable spannable = getSpannable(); 1530 Collections.sort(recipientsList, new Comparator<RecipientChip>() { 1531 1532 @Override 1533 public int compare(RecipientChip first, RecipientChip second) { 1534 int firstStart = spannable.getSpanStart(first); 1535 int secondStart = spannable.getSpanStart(second); 1536 if (firstStart < secondStart) { 1537 return -1; 1538 } else if (firstStart > secondStart) { 1539 return 1; 1540 } else { 1541 return 0; 1542 } 1543 } 1544 }); 1545 return recipientsList.toArray(new RecipientChip[recipientsList.size()]); 1546 } 1547 1548 @Override 1549 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1550 return false; 1551 } 1552 1553 @Override 1554 public void onDestroyActionMode(ActionMode mode) { 1555 } 1556 1557 @Override 1558 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1559 return false; 1560 } 1561 1562 /** 1563 * No chips are selectable. 1564 */ 1565 @Override 1566 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1567 return false; 1568 } 1569 1570 // Visible for testing. 1571 /* package */ImageSpan getMoreChip() { 1572 MoreImageSpan[] moreSpans = getSpannable().getSpans(0, getText().length(), 1573 MoreImageSpan.class); 1574 return moreSpans != null && moreSpans.length > 0 ? moreSpans[0] : null; 1575 } 1576 1577 private MoreImageSpan createMoreSpan(int count) { 1578 String moreText = String.format(mMoreItem.getText().toString(), count); 1579 TextPaint morePaint = new TextPaint(getPaint()); 1580 morePaint.setTextSize(mMoreItem.getTextSize()); 1581 morePaint.setColor(mMoreItem.getCurrentTextColor()); 1582 int width = (int)morePaint.measureText(moreText) + mMoreItem.getPaddingLeft() 1583 + mMoreItem.getPaddingRight(); 1584 int height = getLineHeight(); 1585 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1586 Canvas canvas = new Canvas(drawable); 1587 int adjustedHeight = height; 1588 Layout layout = getLayout(); 1589 if (layout != null) { 1590 adjustedHeight -= layout.getLineDescent(0); 1591 } 1592 canvas.drawText(moreText, 0, moreText.length(), 0, adjustedHeight, morePaint); 1593 1594 Drawable result = new BitmapDrawable(getResources(), drawable); 1595 result.setBounds(0, 0, width, height); 1596 return new MoreImageSpan(result); 1597 } 1598 1599 // Visible for testing. 1600 /*package*/ void createMoreChipPlainText() { 1601 // Take the first <= CHIP_LIMIT addresses and get to the end of the second one. 1602 Editable text = getText(); 1603 int start = 0; 1604 int end = start; 1605 for (int i = 0; i < CHIP_LIMIT; i++) { 1606 end = movePastTerminators(mTokenizer.findTokenEnd(text, start)); 1607 start = end; // move to the next token and get its end. 1608 } 1609 // Now, count total addresses. 1610 start = 0; 1611 int tokenCount = countTokens(text); 1612 MoreImageSpan moreSpan = createMoreSpan(tokenCount - CHIP_LIMIT); 1613 SpannableString chipText = new SpannableString(text.subSequence(end, text.length())); 1614 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1615 text.replace(end, text.length(), chipText); 1616 mMoreChip = moreSpan; 1617 } 1618 1619 // Visible for testing. 1620 /* package */int countTokens(Editable text) { 1621 int tokenCount = 0; 1622 int start = 0; 1623 while (start < text.length()) { 1624 start = movePastTerminators(mTokenizer.findTokenEnd(text, start)); 1625 tokenCount++; 1626 if (start >= text.length()) { 1627 break; 1628 } 1629 } 1630 return tokenCount; 1631 } 1632 1633 /** 1634 * Create the more chip. The more chip is text that replaces any chips that 1635 * do not fit in the pre-defined available space when the 1636 * RecipientEditTextView loses focus. 1637 */ 1638 // Visible for testing. 1639 /* package */ void createMoreChip() { 1640 if (mNoChips) { 1641 createMoreChipPlainText(); 1642 return; 1643 } 1644 1645 if (!mShouldShrink) { 1646 return; 1647 } 1648 1649 ImageSpan[] tempMore = getSpannable().getSpans(0, getText().length(), MoreImageSpan.class); 1650 if (tempMore.length > 0) { 1651 getSpannable().removeSpan(tempMore[0]); 1652 } 1653 RecipientChip[] recipients = getSortedRecipients(); 1654 1655 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1656 mMoreChip = null; 1657 return; 1658 } 1659 Spannable spannable = getSpannable(); 1660 int numRecipients = recipients.length; 1661 int overage = numRecipients - CHIP_LIMIT; 1662 MoreImageSpan moreSpan = createMoreSpan(overage); 1663 mRemovedSpans = new ArrayList<RecipientChip>(); 1664 int totalReplaceStart = 0; 1665 int totalReplaceEnd = 0; 1666 Editable text = getText(); 1667 for (int i = numRecipients - overage; i < recipients.length; i++) { 1668 mRemovedSpans.add(recipients[i]); 1669 if (i == numRecipients - overage) { 1670 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1671 } 1672 if (i == recipients.length - 1) { 1673 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1674 } 1675 if (mTemporaryRecipients == null || !mTemporaryRecipients.contains(recipients[i])) { 1676 int spanStart = spannable.getSpanStart(recipients[i]); 1677 int spanEnd = spannable.getSpanEnd(recipients[i]); 1678 recipients[i].setOriginalText(text.toString().substring(spanStart, spanEnd)); 1679 } 1680 spannable.removeSpan(recipients[i]); 1681 } 1682 if (totalReplaceEnd < text.length()) { 1683 totalReplaceEnd = text.length(); 1684 } 1685 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1686 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1687 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1688 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1689 text.replace(start, end, chipText); 1690 mMoreChip = moreSpan; 1691 } 1692 1693 /** 1694 * Replace the more chip, if it exists, with all of the recipient chips it had 1695 * replaced when the RecipientEditTextView gains focus. 1696 */ 1697 // Visible for testing. 1698 /*package*/ void removeMoreChip() { 1699 if (mMoreChip != null) { 1700 Spannable span = getSpannable(); 1701 span.removeSpan(mMoreChip); 1702 mMoreChip = null; 1703 // Re-add the spans that were removed. 1704 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1705 // Recreate each removed span. 1706 RecipientChip[] recipients = getSortedRecipients(); 1707 // Start the search for tokens after the last currently visible 1708 // chip. 1709 if (recipients == null || recipients.length == 0) { 1710 return; 1711 } 1712 int end = span.getSpanEnd(recipients[recipients.length - 1]); 1713 Editable editable = getText(); 1714 for (RecipientChip chip : mRemovedSpans) { 1715 int chipStart; 1716 int chipEnd; 1717 String token; 1718 // Need to find the location of the chip, again. 1719 token = (String) chip.getOriginalText(); 1720 // As we find the matching recipient for the remove spans, 1721 // reduce the size of the string we need to search. 1722 // That way, if there are duplicates, we always find the correct 1723 // recipient. 1724 chipStart = editable.toString().indexOf(token, end); 1725 end = chipEnd = Math.min(editable.length(), chipStart + token.length()); 1726 // Only set the span if we found a matching token. 1727 if (chipStart != -1) { 1728 editable.setSpan(chip, chipStart, chipEnd, 1729 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1730 } 1731 } 1732 mRemovedSpans.clear(); 1733 } 1734 } 1735 } 1736 1737 /** 1738 * Show specified chip as selected. If the RecipientChip is just an email address, 1739 * selecting the chip will take the contents of the chip and place it at 1740 * the end of the RecipientEditTextView for inline editing. If the 1741 * RecipientChip is a complete contact, then selecting the chip 1742 * will change the background color of the chip, show the delete icon, 1743 * and a popup window with the address in use highlighted and any other 1744 * alternate addresses for the contact. 1745 * @param currentChip Chip to select. 1746 * @return A RecipientChip in the selected state or null if the chip 1747 * just contained an email address. 1748 */ 1749 private RecipientChip selectChip(RecipientChip currentChip) { 1750 if (currentChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1751 CharSequence text = currentChip.getValue(); 1752 Editable editable = getText(); 1753 removeChip(currentChip); 1754 editable.append(text); 1755 setCursorVisible(true); 1756 setSelection(editable.length()); 1757 return new RecipientChip(null, RecipientEntry.constructFakeEntry((String) text), -1); 1758 } else if (currentChip.getContactId() == RecipientEntry.GENERATED_CONTACT) { 1759 int start = getChipStart(currentChip); 1760 int end = getChipEnd(currentChip); 1761 getSpannable().removeSpan(currentChip); 1762 RecipientChip newChip; 1763 try { 1764 if (mNoChips) { 1765 return null; 1766 } 1767 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1768 } catch (NullPointerException e) { 1769 Log.e(TAG, e.getMessage(), e); 1770 return null; 1771 } 1772 Editable editable = getText(); 1773 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1774 if (start == -1 || end == -1) { 1775 Log.d(TAG, "The chip being selected no longer exists but should."); 1776 } else { 1777 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1778 } 1779 newChip.setSelected(true); 1780 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1781 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1782 } 1783 showAddress(newChip, mAddressPopup, getWidth(), getContext()); 1784 setCursorVisible(false); 1785 return newChip; 1786 } else { 1787 int start = getChipStart(currentChip); 1788 int end = getChipEnd(currentChip); 1789 getSpannable().removeSpan(currentChip); 1790 RecipientChip newChip; 1791 try { 1792 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1793 } catch (NullPointerException e) { 1794 Log.e(TAG, e.getMessage(), e); 1795 return null; 1796 } 1797 Editable editable = getText(); 1798 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1799 if (start == -1 || end == -1) { 1800 Log.d(TAG, "The chip being selected no longer exists but should."); 1801 } else { 1802 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1803 } 1804 newChip.setSelected(true); 1805 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1806 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1807 } 1808 showAlternates(newChip, mAlternatesPopup, getWidth(), getContext()); 1809 setCursorVisible(false); 1810 return newChip; 1811 } 1812 } 1813 1814 1815 private void showAddress(final RecipientChip currentChip, final ListPopupWindow popup, 1816 int width, Context context) { 1817 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1818 int bottom = calculateOffsetFromBottom(line); 1819 // Align the alternates popup with the left side of the View, 1820 // regardless of the position of the chip tapped. 1821 setEnabled(false); 1822 popup.setWidth(width); 1823 popup.setAnchorView(this); 1824 popup.setVerticalOffset(bottom); 1825 popup.setAdapter(createSingleAddressAdapter(currentChip)); 1826 popup.setOnItemClickListener(new OnItemClickListener() { 1827 @Override 1828 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1829 unselectChip(currentChip); 1830 popup.dismiss(); 1831 } 1832 }); 1833 popup.show(); 1834 ListView listView = popup.getListView(); 1835 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1836 listView.setItemChecked(0, true); 1837 } 1838 1839 /** 1840 * Remove selection from this chip. Unselecting a RecipientChip will render 1841 * the chip without a delete icon and with an unfocused background. This is 1842 * called when the RecipientChip no longer has focus. 1843 */ 1844 private void unselectChip(RecipientChip chip) { 1845 int start = getChipStart(chip); 1846 int end = getChipEnd(chip); 1847 Editable editable = getText(); 1848 mSelectedChip = null; 1849 if (start == -1 || end == -1) { 1850 Log.w(TAG, "The chip doesn't exist or may be a chip a user was editing"); 1851 setSelection(editable.length()); 1852 commitDefault(); 1853 } else { 1854 getSpannable().removeSpan(chip); 1855 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1856 editable.removeSpan(chip); 1857 try { 1858 if (!mNoChips) { 1859 editable.setSpan(constructChipSpan(chip.getEntry(), start, false), start, end, 1860 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1861 } 1862 } catch (NullPointerException e) { 1863 Log.e(TAG, e.getMessage(), e); 1864 } 1865 } 1866 setCursorVisible(true); 1867 setSelection(editable.length()); 1868 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1869 mAlternatesPopup.dismiss(); 1870 } 1871 } 1872 1873 /** 1874 * Return whether a touch event was inside the delete target of 1875 * a selected chip. It is in the delete target if: 1876 * 1) the x and y points of the event are within the 1877 * delete assset. 1878 * 2) the point tapped would have caused a cursor to appear 1879 * right after the selected chip. 1880 * @return boolean 1881 */ 1882 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1883 // Figure out the bounds of this chip and whether or not 1884 // the user clicked in the X portion. 1885 return chip.isSelected() && offset == getChipEnd(chip); 1886 } 1887 1888 /** 1889 * Remove the chip and any text associated with it from the RecipientEditTextView. 1890 */ 1891 // Visible for testing. 1892 /*pacakge*/ void removeChip(RecipientChip chip) { 1893 Spannable spannable = getSpannable(); 1894 int spanStart = spannable.getSpanStart(chip); 1895 int spanEnd = spannable.getSpanEnd(chip); 1896 Editable text = getText(); 1897 int toDelete = spanEnd; 1898 boolean wasSelected = chip == mSelectedChip; 1899 // Clear that there is a selected chip before updating any text. 1900 if (wasSelected) { 1901 mSelectedChip = null; 1902 } 1903 // Always remove trailing spaces when removing a chip. 1904 while (toDelete >= 0 && toDelete < text.length() && text.charAt(toDelete) == ' ') { 1905 toDelete++; 1906 } 1907 spannable.removeSpan(chip); 1908 text.delete(spanStart, toDelete); 1909 if (wasSelected) { 1910 clearSelectedChip(); 1911 } 1912 } 1913 1914 /** 1915 * Replace this currently selected chip with a new chip 1916 * that uses the contact data provided. 1917 */ 1918 // Visible for testing. 1919 /*package*/ void replaceChip(RecipientChip chip, RecipientEntry entry) { 1920 boolean wasSelected = chip == mSelectedChip; 1921 if (wasSelected) { 1922 mSelectedChip = null; 1923 } 1924 int start = getChipStart(chip); 1925 int end = getChipEnd(chip); 1926 getSpannable().removeSpan(chip); 1927 Editable editable = getText(); 1928 CharSequence chipText = createChip(entry, false); 1929 if (chipText != null) { 1930 if (start == -1 || end == -1) { 1931 Log.e(TAG, "The chip to replace does not exist but should."); 1932 editable.insert(0, chipText); 1933 } else { 1934 if (!TextUtils.isEmpty(chipText)) { 1935 // There may be a space to replace with this chip's new 1936 // associated 1937 // space. Check for it 1938 int toReplace = end; 1939 while (toReplace >= 0 && toReplace < editable.length() 1940 && editable.charAt(toReplace) == ' ') { 1941 toReplace++; 1942 } 1943 editable.replace(start, toReplace, chipText); 1944 } 1945 } 1946 } 1947 setCursorVisible(true); 1948 if (wasSelected) { 1949 clearSelectedChip(); 1950 } 1951 } 1952 1953 /** 1954 * Handle click events for a chip. When a selected chip receives a click 1955 * event, see if that event was in the delete icon. If so, delete it. 1956 * Otherwise, unselect the chip. 1957 */ 1958 public void onClick(RecipientChip chip, int offset, float x, float y) { 1959 if (chip.isSelected()) { 1960 if (isInDelete(chip, offset, x, y)) { 1961 removeChip(chip); 1962 } else { 1963 clearSelectedChip(); 1964 } 1965 } 1966 } 1967 1968 private boolean chipsPending() { 1969 return mPendingChipsCount > 0 || (mRemovedSpans != null && mRemovedSpans.size() > 0); 1970 } 1971 1972 @Override 1973 public void removeTextChangedListener(TextWatcher watcher) { 1974 mTextWatcher = null; 1975 super.removeTextChangedListener(watcher); 1976 } 1977 1978 private class RecipientTextWatcher implements TextWatcher { 1979 @Override 1980 public void afterTextChanged(Editable s) { 1981 // If the text has been set to null or empty, make sure we remove 1982 // all the spans we applied. 1983 if (TextUtils.isEmpty(s)) { 1984 // Remove all the chips spans. 1985 Spannable spannable = getSpannable(); 1986 RecipientChip[] chips = spannable.getSpans(0, getText().length(), 1987 RecipientChip.class); 1988 for (RecipientChip chip : chips) { 1989 spannable.removeSpan(chip); 1990 } 1991 if (mMoreChip != null) { 1992 spannable.removeSpan(mMoreChip); 1993 } 1994 return; 1995 } 1996 // Get whether there are any recipients pending addition to the 1997 // view. If there are, don't do anything in the text watcher. 1998 if (chipsPending()) { 1999 return; 2000 } 2001 // If the user is editing a chip, don't clear it. 2002 if (mSelectedChip != null 2003 && mSelectedChip.getContactId() != RecipientEntry.INVALID_CONTACT) { 2004 setCursorVisible(true); 2005 setSelection(getText().length()); 2006 clearSelectedChip(); 2007 } 2008 int length = s.length(); 2009 // Make sure there is content there to parse and that it is 2010 // not just the commit character. 2011 if (length > 1) { 2012 char last; 2013 int end = getSelectionEnd() == 0 ? 0 : getSelectionEnd() - 1; 2014 int len = length() - 1; 2015 if (end != len) { 2016 last = s.charAt(end); 2017 } else { 2018 last = s.charAt(len); 2019 } 2020 if (last == COMMIT_CHAR_SEMICOLON || last == COMMIT_CHAR_COMMA) { 2021 commitByCharacter(); 2022 } else if (last == COMMIT_CHAR_SPACE) { 2023 // Check if this is a valid email address. If it is, 2024 // commit it. 2025 String text = getText().toString(); 2026 int tokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 2027 String sub = text.substring(tokenStart, mTokenizer.findTokenEnd(text, 2028 tokenStart)); 2029 if (!TextUtils.isEmpty(sub) && mValidator != null && mValidator.isValid(sub)) { 2030 commitByCharacter(); 2031 } 2032 } 2033 } 2034 } 2035 2036 @Override 2037 public void onTextChanged(CharSequence s, int start, int before, int count) { 2038 // Do nothing. 2039 } 2040 2041 @Override 2042 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 2043 // Do nothing. 2044 } 2045 } 2046 2047 /** 2048 * Handles pasting a {@link ClipData} to this {@link RecipientEditTextView}. 2049 */ 2050 private void handlePasteClip(ClipData clip) { 2051 removeTextChangedListener(mTextWatcher); 2052 2053 if (clip != null && clip.getDescription().hasMimeType(ClipDescription.MIMETYPE_TEXT_PLAIN)){ 2054 for (int i = 0; i < clip.getItemCount(); i++) { 2055 CharSequence paste = clip.getItemAt(i).getText(); 2056 if (paste != null) { 2057 int start = getSelectionStart(); 2058 int end = getSelectionEnd(); 2059 Editable editable = getText(); 2060 if (start >= 0 && end >= 0 && start != end) { 2061 editable.append(paste, start, end); 2062 } else { 2063 editable.insert(end, paste); 2064 } 2065 handlePasteAndReplace(); 2066 } 2067 } 2068 } 2069 2070 mHandler.post(mAddTextWatcher); 2071 } 2072 2073 @Override 2074 public boolean onTextContextMenuItem(int id) { 2075 if (id == android.R.id.paste) { 2076 ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService( 2077 Context.CLIPBOARD_SERVICE); 2078 handlePasteClip(clipboard.getPrimaryClip()); 2079 return true; 2080 } 2081 return super.onTextContextMenuItem(id); 2082 } 2083 2084 private void handlePasteAndReplace() { 2085 ArrayList<RecipientChip> created = handlePaste(); 2086 if (created != null && created.size() > 0) { 2087 // Perform reverse lookups on the pasted contacts. 2088 IndividualReplacementTask replace = new IndividualReplacementTask(); 2089 replace.execute(created); 2090 } 2091 } 2092 2093 // Visible for testing. 2094 /* package */ArrayList<RecipientChip> handlePaste() { 2095 String text = getText().toString(); 2096 int originalTokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 2097 String lastAddress = text.substring(originalTokenStart); 2098 int tokenStart = originalTokenStart; 2099 int prevTokenStart = tokenStart; 2100 RecipientChip findChip = null; 2101 ArrayList<RecipientChip> created = new ArrayList<RecipientChip>(); 2102 if (tokenStart != 0) { 2103 // There are things before this! 2104 while (tokenStart != 0 && findChip == null) { 2105 prevTokenStart = tokenStart; 2106 tokenStart = mTokenizer.findTokenStart(text, tokenStart); 2107 findChip = findChip(tokenStart); 2108 } 2109 if (tokenStart != originalTokenStart) { 2110 if (findChip != null) { 2111 tokenStart = prevTokenStart; 2112 } 2113 int tokenEnd; 2114 RecipientChip createdChip; 2115 while (tokenStart < originalTokenStart) { 2116 tokenEnd = movePastTerminators(mTokenizer.findTokenEnd(text, tokenStart)); 2117 commitChip(tokenStart, tokenEnd, getText()); 2118 createdChip = findChip(tokenStart); 2119 // +1 for the space at the end. 2120 tokenStart = getSpannable().getSpanEnd(createdChip) + 1; 2121 created.add(createdChip); 2122 } 2123 } 2124 } 2125 // Take a look at the last token. If the token has been completed with a 2126 // commit character, create a chip. 2127 if (isCompletedToken(lastAddress)) { 2128 Editable editable = getText(); 2129 tokenStart = editable.toString().indexOf(lastAddress, originalTokenStart); 2130 commitChip(tokenStart, editable.length(), editable); 2131 created.add(findChip(tokenStart)); 2132 } 2133 return created; 2134 } 2135 2136 // Visible for testing. 2137 /* package */int movePastTerminators(int tokenEnd) { 2138 if (tokenEnd >= length()) { 2139 return tokenEnd; 2140 } 2141 char atEnd = getText().toString().charAt(tokenEnd); 2142 if (atEnd == COMMIT_CHAR_COMMA || atEnd == COMMIT_CHAR_SEMICOLON) { 2143 tokenEnd++; 2144 } 2145 // This token had not only an end token character, but also a space 2146 // separating it from the next token. 2147 if (tokenEnd < length() && getText().toString().charAt(tokenEnd) == ' ') { 2148 tokenEnd++; 2149 } 2150 return tokenEnd; 2151 } 2152 2153 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 2154 private RecipientChip createFreeChip(RecipientEntry entry) { 2155 try { 2156 if (mNoChips) { 2157 return null; 2158 } 2159 return constructChipSpan(entry, -1, false); 2160 } catch (NullPointerException e) { 2161 Log.e(TAG, e.getMessage(), e); 2162 return null; 2163 } 2164 } 2165 2166 @Override 2167 protected Void doInBackground(Void... params) { 2168 if (mIndividualReplacements != null) { 2169 mIndividualReplacements.cancel(true); 2170 } 2171 // For each chip in the list, look up the matching contact. 2172 // If there is a match, replace that chip with the matching 2173 // chip. 2174 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 2175 RecipientChip[] existingChips = getSortedRecipients(); 2176 for (int i = 0; i < existingChips.length; i++) { 2177 originalRecipients.add(existingChips[i]); 2178 } 2179 if (mRemovedSpans != null) { 2180 originalRecipients.addAll(mRemovedSpans); 2181 } 2182 String[] addresses = new String[originalRecipients.size()]; 2183 RecipientChip chip; 2184 for (int i = 0; i < originalRecipients.size(); i++) { 2185 chip = originalRecipients.get(i); 2186 if (chip != null) { 2187 addresses[i] = createAddressText(chip.getEntry()); 2188 } 2189 } 2190 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 2191 .getMatchingRecipients(getContext(), addresses); 2192 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 2193 for (final RecipientChip temp : originalRecipients) { 2194 RecipientEntry entry = null; 2195 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 2196 && getSpannable().getSpanStart(temp) != -1) { 2197 // Replace this. 2198 entry = createValidatedEntry(entries.get(tokenizeAddress(temp.getEntry() 2199 .getDestination()))); 2200 } 2201 if (entry != null) { 2202 replacements.add(createFreeChip(entry)); 2203 } else { 2204 replacements.add(temp); 2205 } 2206 } 2207 if (replacements != null && replacements.size() > 0) { 2208 mHandler.post(new Runnable() { 2209 @Override 2210 public void run() { 2211 SpannableStringBuilder text = new SpannableStringBuilder(getText() 2212 .toString()); 2213 Editable oldText = getText(); 2214 int start, end; 2215 int i = 0; 2216 for (RecipientChip chip : originalRecipients) { 2217 start = oldText.getSpanStart(chip); 2218 if (start != -1) { 2219 end = oldText.getSpanEnd(chip); 2220 oldText.removeSpan(chip); 2221 // Leave a spot for the space! 2222 RecipientChip replacement = replacements.get(i); 2223 text.setSpan(replacement, start, end, 2224 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 2225 replacement.setOriginalText(text.toString().substring(start, end)); 2226 } 2227 i++; 2228 } 2229 originalRecipients.clear(); 2230 setText(text); 2231 } 2232 }); 2233 } 2234 return null; 2235 } 2236 } 2237 2238 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 2239 @SuppressWarnings("unchecked") 2240 @Override 2241 protected Void doInBackground(Object... params) { 2242 // For each chip in the list, look up the matching contact. 2243 // If there is a match, replace that chip with the matching 2244 // chip. 2245 final ArrayList<RecipientChip> originalRecipients = 2246 (ArrayList<RecipientChip>) params[0]; 2247 String[] addresses = new String[originalRecipients.size()]; 2248 RecipientChip chip; 2249 for (int i = 0; i < originalRecipients.size(); i++) { 2250 chip = originalRecipients.get(i); 2251 if (chip != null) { 2252 addresses[i] = createAddressText(chip.getEntry()); 2253 } 2254 } 2255 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 2256 .getMatchingRecipients(getContext(), addresses); 2257 for (final RecipientChip temp : originalRecipients) { 2258 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 2259 && getSpannable().getSpanStart(temp) != -1) { 2260 // Replace this. 2261 final RecipientEntry entry = createValidatedEntry(entries 2262 .get(tokenizeAddress(temp.getEntry().getDestination()).toLowerCase())); 2263 if (entry != null) { 2264 mHandler.post(new Runnable() { 2265 @Override 2266 public void run() { 2267 replaceChip(temp, entry); 2268 } 2269 }); 2270 } 2271 } 2272 } 2273 return null; 2274 } 2275 } 2276 2277 2278 /** 2279 * MoreImageSpan is a simple class created for tracking the existence of a 2280 * more chip across activity restarts/ 2281 */ 2282 private class MoreImageSpan extends ImageSpan { 2283 public MoreImageSpan(Drawable b) { 2284 super(b); 2285 } 2286 } 2287 2288 @Override 2289 public boolean onDown(MotionEvent e) { 2290 return false; 2291 } 2292 2293 @Override 2294 public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { 2295 // Do nothing. 2296 return false; 2297 } 2298 2299 @Override 2300 public void onLongPress(MotionEvent event) { 2301 if (mSelectedChip != null) { 2302 return; 2303 } 2304 float x = event.getX(); 2305 float y = event.getY(); 2306 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 2307 RecipientChip currentChip = findChip(offset); 2308 if (currentChip != null) { 2309 if (mDragEnabled) { 2310 // Start drag-and-drop for the selected chip. 2311 startDrag(currentChip); 2312 } else { 2313 // Copy the selected chip email address. 2314 showCopyDialog(currentChip.getEntry().getDestination()); 2315 } 2316 } 2317 } 2318 2319 /** 2320 * Enables drag-and-drop for chips. 2321 */ 2322 public void enableDrag() { 2323 mDragEnabled = true; 2324 } 2325 2326 /** 2327 * Starts drag-and-drop for the selected chip. 2328 */ 2329 private void startDrag(RecipientChip currentChip) { 2330 String address = currentChip.getEntry().getDestination(); 2331 ClipData data = ClipData.newPlainText(address, address + COMMIT_CHAR_COMMA); 2332 2333 // Start drag mode. 2334 startDrag(data, new RecipientChipShadow(currentChip), null, 0); 2335 2336 // Remove the current chip, so drag-and-drop will result in a move. 2337 // TODO (phamm): consider readd this chip if it's dropped outside a target. 2338 removeChip(currentChip); 2339 } 2340 2341 /** 2342 * Handles drag event. 2343 */ 2344 @Override 2345 public boolean onDragEvent(DragEvent event) { 2346 switch (event.getAction()) { 2347 case DragEvent.ACTION_DRAG_STARTED: 2348 // Only handle plain text drag and drop. 2349 return event.getClipDescription().hasMimeType(ClipDescription.MIMETYPE_TEXT_PLAIN); 2350 case DragEvent.ACTION_DRAG_ENTERED: 2351 requestFocus(); 2352 return true; 2353 case DragEvent.ACTION_DROP: 2354 handlePasteClip(event.getClipData()); 2355 return true; 2356 } 2357 return false; 2358 } 2359 2360 /** 2361 * Drag shadow for a {@link RecipientChip}. 2362 */ 2363 private final class RecipientChipShadow extends DragShadowBuilder { 2364 private final RecipientChip mChip; 2365 2366 public RecipientChipShadow(RecipientChip chip) { 2367 mChip = chip; 2368 } 2369 2370 @Override 2371 public void onProvideShadowMetrics(Point shadowSize, Point shadowTouchPoint) { 2372 Rect rect = mChip.getDrawable().getBounds(); 2373 shadowSize.set(rect.width(), rect.height()); 2374 shadowTouchPoint.set(rect.centerX(), rect.centerY()); 2375 } 2376 2377 @Override 2378 public void onDrawShadow(Canvas canvas) { 2379 mChip.getDrawable().draw(canvas); 2380 } 2381 } 2382 2383 private void showCopyDialog(final String address) { 2384 mCopyAddress = address; 2385 mCopyDialog.setTitle(address); 2386 mCopyDialog.setContentView(mCopyViewRes); 2387 mCopyDialog.setCancelable(true); 2388 mCopyDialog.setCanceledOnTouchOutside(true); 2389 mCopyDialog.findViewById(android.R.id.button1).setOnClickListener(this); 2390 mCopyDialog.setOnDismissListener(this); 2391 mCopyDialog.show(); 2392 } 2393 2394 @Override 2395 public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) { 2396 // Do nothing. 2397 return false; 2398 } 2399 2400 @Override 2401 public void onShowPress(MotionEvent e) { 2402 // Do nothing. 2403 } 2404 2405 @Override 2406 public boolean onSingleTapUp(MotionEvent e) { 2407 // Do nothing. 2408 return false; 2409 } 2410 2411 @Override 2412 public void onDismiss(DialogInterface dialog) { 2413 mCopyAddress = null; 2414 } 2415 2416 @Override 2417 public void onClick(View v) { 2418 // Copy this to the clipboard. 2419 ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService( 2420 Context.CLIPBOARD_SERVICE); 2421 clipboard.setPrimaryClip(ClipData.newPlainText("", mCopyAddress)); 2422 mCopyDialog.dismiss(); 2423 } 2424} 2425