RecipientEditTextView.java revision 62fce9316c48a188d89c31d7e616f755bd7cf14c
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 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 setChipDimensions(context, attrs); 222 if (sSelectedTextColor == -1) { 223 sSelectedTextColor = context.getResources().getColor(android.R.color.white); 224 } 225 mAlternatesPopup = new ListPopupWindow(context); 226 mAlternatesPopup.setOnDismissListener(this); 227 mAddressPopup = new ListPopupWindow(context); 228 mAddressPopup.setOnDismissListener(this); 229 mCopyDialog = new Dialog(context); 230 mAlternatesListener = new OnItemClickListener() { 231 @Override 232 public void onItemClick(AdapterView<?> adapterView,View view, int position, 233 long rowId) { 234 mAlternatesPopup.setOnItemClickListener(null); 235 setEnabled(true); 236 replaceChip(mSelectedChip, ((RecipientAlternatesAdapter) adapterView.getAdapter()) 237 .getRecipientEntry(position)); 238 Message delayed = Message.obtain(mHandler, DISMISS); 239 delayed.obj = mAlternatesPopup; 240 mHandler.sendMessageDelayed(delayed, DISMISS_DELAY); 241 clearComposingText(); 242 } 243 }; 244 setInputType(getInputType() | InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS); 245 setOnItemClickListener(this); 246 setCustomSelectionActionModeCallback(this); 247 mHandler = new Handler() { 248 @Override 249 public void handleMessage(Message msg) { 250 if (msg.what == DISMISS) { 251 ((ListPopupWindow) msg.obj).dismiss(); 252 return; 253 } 254 super.handleMessage(msg); 255 } 256 }; 257 mTextWatcher = new RecipientTextWatcher(); 258 addTextChangedListener(mTextWatcher); 259 mGestureDetector = new GestureDetector(context, this); 260 } 261 262 /*package*/ RecipientChip getLastChip() { 263 RecipientChip last = null; 264 RecipientChip[] chips = getSortedRecipients(); 265 if (chips != null && chips.length > 0) { 266 last = chips[chips.length - 1]; 267 } 268 return last; 269 } 270 271 @Override 272 public void onSelectionChanged(int start, int end) { 273 // When selection changes, see if it is inside the chips area. 274 // If so, move the cursor back after the chips again. 275 RecipientChip last = getLastChip(); 276 if (last != null && start < getSpannable().getSpanEnd(last)) { 277 // Grab the last chip and set the cursor to after it. 278 setSelection(Math.min(getSpannable().getSpanEnd(last) + 1, getText().length())); 279 } 280 super.onSelectionChanged(start, end); 281 } 282 283 @Override 284 public void onRestoreInstanceState(Parcelable state) { 285 if (!TextUtils.isEmpty(getText())) { 286 super.onRestoreInstanceState(null); 287 } else { 288 super.onRestoreInstanceState(state); 289 } 290 } 291 292 @Override 293 public Parcelable onSaveInstanceState() { 294 // If the user changes orientation while they are editing, just roll back the selection. 295 clearSelectedChip(); 296 return super.onSaveInstanceState(); 297 } 298 299 /** 300 * Convenience method: Append the specified text slice to the TextView's 301 * display buffer, upgrading it to BufferType.EDITABLE if it was 302 * not already editable. Commas are excluded as they are added automatically 303 * by the view. 304 */ 305 @Override 306 public void append(CharSequence text, int start, int end) { 307 // We don't care about watching text changes while appending. 308 if (mTextWatcher != null) { 309 removeTextChangedListener(mTextWatcher); 310 } 311 super.append(text, start, end); 312 if (!TextUtils.isEmpty(text) && TextUtils.getTrimmedLength(text) > 0) { 313 final String displayString = (String) text; 314 int seperatorPos = displayString.indexOf(COMMIT_CHAR_COMMA); 315 if (seperatorPos != 0 && !TextUtils.isEmpty(displayString) 316 && TextUtils.getTrimmedLength(displayString) > 0) { 317 mPendingChipsCount++; 318 mPendingChips.add((String)text); 319 } 320 } 321 // Put a message on the queue to make sure we ALWAYS handle pending chips. 322 if (mPendingChipsCount > 0) { 323 postHandlePendingChips(); 324 } 325 mHandler.post(mAddTextWatcher); 326 } 327 328 @Override 329 public void onFocusChanged(boolean hasFocus, int direction, Rect previous) { 330 super.onFocusChanged(hasFocus, direction, previous); 331 if (!hasFocus) { 332 shrink(); 333 } else { 334 expand(); 335 scrollLineIntoView(getLineCount()); 336 } 337 } 338 339 @Override 340 public void performValidation() { 341 // Do nothing. Chips handles its own validation. 342 } 343 344 private void shrink() { 345 if (mTokenizer == null) { 346 return; 347 } 348 if (mSelectedChip != null 349 && mSelectedChip.getEntry().getContactId() != RecipientEntry.INVALID_CONTACT) { 350 clearSelectedChip(); 351 } else { 352 if (getWidth() <= 0) { 353 // We don't have the width yet which means the view hasn't been drawn yet 354 // and there is no reason to attempt to commit chips yet. 355 // This focus lost must be the result of an orientation change 356 // or an initial rendering. 357 // Re-post the shrink for later. 358 mHandler.removeCallbacks(mDelayedShrink); 359 mHandler.post(mDelayedShrink); 360 return; 361 } 362 // Reset any pending chips as they would have been handled 363 // when the field lost focus. 364 if (mPendingChipsCount > 0) { 365 postHandlePendingChips(); 366 } else { 367 Editable editable = getText(); 368 int end = getSelectionEnd(); 369 int start = mTokenizer.findTokenStart(editable, end); 370 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 371 if ((chips == null || chips.length == 0)) { 372 Editable text = getText(); 373 int whatEnd = mTokenizer.findTokenEnd(text, start); 374 // This token was already tokenized, so skip past the ending token. 375 if (whatEnd < text.length() && text.charAt(whatEnd) == ',') { 376 whatEnd++; 377 } 378 // In the middle of chip; treat this as an edit 379 // and commit the whole token. 380 int selEnd = getSelectionEnd(); 381 if (whatEnd != selEnd) { 382 handleEdit(start, whatEnd); 383 } else { 384 commitChip(start, end, editable); 385 } 386 } 387 } 388 mHandler.post(mAddTextWatcher); 389 } 390 createMoreChip(); 391 } 392 393 private void expand() { 394 removeMoreChip(); 395 setCursorVisible(true); 396 Editable text = getText(); 397 setSelection(text != null && text.length() > 0 ? text.length() : 0); 398 // If there are any temporary chips, try replacing them now that the user 399 // has expanded the field. 400 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0) { 401 new RecipientReplacementTask().execute(); 402 mTemporaryRecipients = null; 403 } 404 } 405 406 private CharSequence ellipsizeText(CharSequence text, TextPaint paint, float maxWidth) { 407 paint.setTextSize(mChipFontSize); 408 if (maxWidth <= 0 && Log.isLoggable(TAG, Log.DEBUG)) { 409 Log.d(TAG, "Max width is negative: " + maxWidth); 410 } 411 return TextUtils.ellipsize(text, paint, maxWidth, 412 TextUtils.TruncateAt.END); 413 } 414 415 private Bitmap createSelectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 416 // Ellipsize the text so that it takes AT MOST the entire width of the 417 // autocomplete text entry area. Make sure to leave space for padding 418 // on the sides. 419 int height = (int) mChipHeight; 420 int deleteWidth = height; 421 float[] widths = new float[1]; 422 paint.getTextWidths(" ", widths); 423 CharSequence ellipsizedText = ellipsizeText(createChipDisplayText(contact), paint, 424 calculateAvailableWidth(true) - deleteWidth - widths[0]); 425 426 // Make sure there is a minimum chip width so the user can ALWAYS 427 // tap a chip without difficulty. 428 int width = Math.max(deleteWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 429 ellipsizedText.length())) 430 + (mChipPadding * 2) + deleteWidth); 431 432 // Create the background of the chip. 433 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 434 Canvas canvas = new Canvas(tmpBitmap); 435 if (mChipBackgroundPressed != null) { 436 mChipBackgroundPressed.setBounds(0, 0, width, height); 437 mChipBackgroundPressed.draw(canvas); 438 paint.setColor(sSelectedTextColor); 439 // Vertically center the text in the chip. 440 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 441 getTextYOffset((String) ellipsizedText, paint, height), paint); 442 // Make the delete a square. 443 Rect backgroundPadding = new Rect(); 444 mChipBackgroundPressed.getPadding(backgroundPadding); 445 mChipDelete.setBounds(width - deleteWidth + backgroundPadding.left, 446 0 + backgroundPadding.top, 447 width - backgroundPadding.right, 448 height - backgroundPadding.bottom); 449 mChipDelete.draw(canvas); 450 } else { 451 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 452 } 453 return tmpBitmap; 454 } 455 456 457 private Bitmap createUnselectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 458 // Ellipsize the text so that it takes AT MOST the entire width of the 459 // autocomplete text entry area. Make sure to leave space for padding 460 // on the sides. 461 int height = (int) mChipHeight; 462 int iconWidth = height; 463 float[] widths = new float[1]; 464 paint.getTextWidths(" ", widths); 465 CharSequence ellipsizedText = ellipsizeText(createChipDisplayText(contact), paint, 466 calculateAvailableWidth(false) - iconWidth - widths[0]); 467 // Make sure there is a minimum chip width so the user can ALWAYS 468 // tap a chip without difficulty. 469 int width = Math.max(iconWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 470 ellipsizedText.length())) 471 + (mChipPadding * 2) + iconWidth); 472 473 // Create the background of the chip. 474 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 475 Canvas canvas = new Canvas(tmpBitmap); 476 Drawable background = getChipBackground(contact); 477 if (background != null) { 478 background.setBounds(0, 0, width, height); 479 background.draw(canvas); 480 481 // Don't draw photos for recipients that have been typed in. 482 if (contact.getContactId() != RecipientEntry.INVALID_CONTACT) { 483 byte[] photoBytes = contact.getPhotoBytes(); 484 // There may not be a photo yet if anything but the first contact address 485 // was selected. 486 if (photoBytes == null && contact.getPhotoThumbnailUri() != null) { 487 // TODO: cache this in the recipient entry? 488 ((BaseRecipientAdapter) getAdapter()).fetchPhoto(contact, contact 489 .getPhotoThumbnailUri()); 490 photoBytes = contact.getPhotoBytes(); 491 } 492 493 Bitmap photo; 494 if (photoBytes != null) { 495 photo = BitmapFactory.decodeByteArray(photoBytes, 0, photoBytes.length); 496 } else { 497 // TODO: can the scaled down default photo be cached? 498 photo = mDefaultContactPhoto; 499 } 500 // Draw the photo on the left side. 501 if (photo != null) { 502 RectF src = new RectF(0, 0, photo.getWidth(), photo.getHeight()); 503 Rect backgroundPadding = new Rect(); 504 mChipBackground.getPadding(backgroundPadding); 505 RectF dst = new RectF(width - iconWidth + backgroundPadding.left, 506 0 + backgroundPadding.top, 507 width - backgroundPadding.right, 508 height - backgroundPadding.bottom); 509 Matrix matrix = new Matrix(); 510 matrix.setRectToRect(src, dst, Matrix.ScaleToFit.FILL); 511 canvas.drawBitmap(photo, matrix, paint); 512 } 513 } else { 514 // Don't leave any space for the icon. It isn't being drawn. 515 iconWidth = 0; 516 } 517 paint.setColor(getContext().getResources().getColor(android.R.color.black)); 518 // Vertically center the text in the chip. 519 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 520 getTextYOffset((String)ellipsizedText, paint, height), paint); 521 } else { 522 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 523 } 524 return tmpBitmap; 525 } 526 527 /** 528 * Get the background drawable for a RecipientChip. 529 */ 530 // Visible for testing. 531 /*package*/ Drawable getChipBackground(RecipientEntry contact) { 532 return (mValidator != null && mValidator.isValid(contact.getDestination())) ? 533 mChipBackground : mInvalidChipBackground; 534 } 535 536 private float getTextYOffset(String text, TextPaint paint, int height) { 537 Rect bounds = new Rect(); 538 paint.getTextBounds(text, 0, text.length(), bounds); 539 int textHeight = bounds.bottom - bounds.top - (int)paint.descent(); 540 return height - ((height - textHeight) / 2); 541 } 542 543 private RecipientChip constructChipSpan(RecipientEntry contact, int offset, boolean pressed) 544 throws NullPointerException { 545 if (mChipBackground == null) { 546 throw new NullPointerException( 547 "Unable to render any chips as setChipDimensions was not called."); 548 } 549 Layout layout = getLayout(); 550 551 TextPaint paint = getPaint(); 552 float defaultSize = paint.getTextSize(); 553 int defaultColor = paint.getColor(); 554 555 Bitmap tmpBitmap; 556 if (pressed) { 557 tmpBitmap = createSelectedChip(contact, paint, layout); 558 559 } else { 560 tmpBitmap = createUnselectedChip(contact, paint, layout); 561 } 562 563 // Pass the full text, un-ellipsized, to the chip. 564 Drawable result = new BitmapDrawable(getResources(), tmpBitmap); 565 result.setBounds(0, 0, tmpBitmap.getWidth(), tmpBitmap.getHeight()); 566 RecipientChip recipientChip = new RecipientChip(result, contact, offset); 567 // Return text to the original size. 568 paint.setTextSize(defaultSize); 569 paint.setColor(defaultColor); 570 return recipientChip; 571 } 572 573 /** 574 * Calculate the bottom of the line the chip will be located on using: 575 * 1) which line the chip appears on 576 * 2) the height of a chip 577 * 3) padding built into the edit text view 578 */ 579 private int calculateOffsetFromBottom(int line) { 580 // Line offsets start at zero. 581 int actualLine = getLineCount() - (line + 1); 582 return -((actualLine * ((int) mChipHeight) + getPaddingBottom()) + getPaddingTop()) 583 + getDropDownVerticalOffset(); 584 } 585 586 /** 587 * Get the max amount of space a chip can take up. The formula takes into 588 * account the width of the EditTextView, any view padding, and padding 589 * that will be added to the chip. 590 */ 591 private float calculateAvailableWidth(boolean pressed) { 592 return getWidth() - getPaddingLeft() - getPaddingRight() - (mChipPadding * 2); 593 } 594 595 596 private void setChipDimensions(Context context, AttributeSet attrs) { 597 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.RecipientEditTextView, 0, 598 0); 599 Resources r = getContext().getResources(); 600 mChipBackground = a.getDrawable(R.styleable.RecipientEditTextView_chipBackground); 601 if (mChipBackground == null) { 602 mChipBackground = r.getDrawable(R.drawable.chip_background); 603 } 604 mChipBackgroundPressed = a 605 .getDrawable(R.styleable.RecipientEditTextView_chipBackgroundPressed); 606 if (mChipBackgroundPressed == null) { 607 mChipBackgroundPressed = r.getDrawable(R.drawable.chip_background_selected); 608 } 609 mChipDelete = a.getDrawable(R.styleable.RecipientEditTextView_chipDelete); 610 if (mChipDelete == null) { 611 mChipDelete = r.getDrawable(R.drawable.chip_delete); 612 } 613 mChipPadding = a.getDimensionPixelSize(R.styleable.RecipientEditTextView_chipPadding, -1); 614 if (mChipPadding == -1) { 615 mChipPadding = (int) r.getDimension(R.dimen.chip_padding); 616 } 617 mAlternatesLayout = a.getResourceId(R.styleable.RecipientEditTextView_chipAlternatesLayout, 618 -1); 619 if (mAlternatesLayout == -1) { 620 mAlternatesLayout = R.layout.chips_alternate_item; 621 } 622 623 mDefaultContactPhoto = BitmapFactory.decodeResource(r, R.drawable.ic_contact_picture); 624 625 mMoreItem = (TextView) LayoutInflater.from(getContext()).inflate(R.layout.more_item, null); 626 627 mChipHeight = a.getDimensionPixelSize(R.styleable.RecipientEditTextView_chipHeight, -1); 628 if (mChipHeight == -1) { 629 mChipHeight = r.getDimension(R.dimen.chip_height); 630 } 631 mChipFontSize = a.getDimensionPixelSize(R.styleable.RecipientEditTextView_chipFontSize, -1); 632 if (mChipFontSize == -1) { 633 mChipFontSize = r.getDimension(R.dimen.chip_text_size); 634 } 635 mInvalidChipBackground = a 636 .getDrawable(R.styleable.RecipientEditTextView_invalidChipBackground); 637 if (mInvalidChipBackground == null) { 638 mInvalidChipBackground = r.getDrawable(R.drawable.chip_background_invalid); 639 } 640 } 641 642 // Visible for testing. 643 /* package */ void setMoreItem(TextView moreItem) { 644 mMoreItem = moreItem; 645 } 646 647 648 // Visible for testing. 649 /* package */ void setChipBackground(Drawable chipBackground) { 650 mChipBackground = chipBackground; 651 } 652 653 // Visible for testing. 654 /* package */ void setChipHeight(int height) { 655 mChipHeight = height; 656 } 657 658 /** 659 * Set whether to shrink the recipients field such that at most 660 * one line of recipients chips are shown when the field loses 661 * focus. By default, the number of displayed recipients will be 662 * limited and a "more" chip will be shown when focus is lost. 663 * @param shrink 664 */ 665 public void setOnFocusListShrinkRecipients(boolean shrink) { 666 mShouldShrink = shrink; 667 } 668 669 @Override 670 public void onSizeChanged(int width, int height, int oldw, int oldh) { 671 super.onSizeChanged(width, height, oldw, oldh); 672 if (width != 0 && height != 0) { 673 if (mPendingChipsCount > 0) { 674 postHandlePendingChips(); 675 } else { 676 checkChipWidths(); 677 } 678 } 679 // Try to find the scroll view parent, if it exists. 680 if (mScrollView == null && !mTriedGettingScrollView) { 681 ViewParent parent = getParent(); 682 while (parent != null && !(parent instanceof ScrollView)) { 683 parent = parent.getParent(); 684 } 685 if (parent != null) { 686 mScrollView = (ScrollView) parent; 687 } 688 mTriedGettingScrollView = true; 689 } 690 } 691 692 private void postHandlePendingChips() { 693 mHandler.removeCallbacks(mHandlePendingChips); 694 mHandler.post(mHandlePendingChips); 695 } 696 697 private void checkChipWidths() { 698 // Check the widths of the associated chips. 699 RecipientChip[] chips = getSortedRecipients(); 700 if (chips != null) { 701 Rect bounds; 702 for (RecipientChip chip : chips) { 703 bounds = chip.getDrawable().getBounds(); 704 if (getWidth() > 0 && bounds.right - bounds.left > getWidth()) { 705 // Need to redraw that chip. 706 replaceChip(chip, chip.getEntry()); 707 } 708 } 709 } 710 } 711 712 // Visible for testing. 713 /*package*/ void handlePendingChips() { 714 if (getViewWidth() <= 0) { 715 // The widget has not been sized yet. 716 // This will be called as a result of onSizeChanged 717 // at a later point. 718 return; 719 } 720 if (mPendingChipsCount <= 0) { 721 return; 722 } 723 724 synchronized (mPendingChips) { 725 Editable editable = getText(); 726 // Tokenize! 727 if (mPendingChipsCount <= MAX_CHIPS_PARSED) { 728 for (int i = 0; i < mPendingChips.size(); i++) { 729 String current = mPendingChips.get(i); 730 int tokenStart = editable.toString().indexOf(current); 731 int tokenEnd = tokenStart + current.length(); 732 if (tokenStart >= 0) { 733 // When we have a valid token, include it with the token 734 // to the left. 735 if (tokenEnd < editable.length() - 2 736 && editable.charAt(tokenEnd) == COMMIT_CHAR_COMMA) { 737 tokenEnd++; 738 } 739 createReplacementChip(tokenStart, tokenEnd, editable); 740 } 741 mPendingChipsCount--; 742 } 743 sanitizeEnd(); 744 } else { 745 mNoChips = true; 746 } 747 748 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0 749 && mTemporaryRecipients.size() <= RecipientAlternatesAdapter.MAX_LOOKUPS) { 750 if (hasFocus() || mTemporaryRecipients.size() < CHIP_LIMIT) { 751 new RecipientReplacementTask().execute(); 752 mTemporaryRecipients = null; 753 } else { 754 // Create the "more" chip 755 mIndividualReplacements = new IndividualReplacementTask(); 756 mIndividualReplacements.execute(new ArrayList<RecipientChip>( 757 mTemporaryRecipients.subList(0, CHIP_LIMIT))); 758 759 createMoreChip(); 760 } 761 } else { 762 // There are too many recipients to look up, so just fall back 763 // to showing addresses for all of them. 764 mTemporaryRecipients = null; 765 createMoreChip(); 766 } 767 mPendingChipsCount = 0; 768 mPendingChips.clear(); 769 } 770 } 771 772 // Visible for testing. 773 /*package*/ int getViewWidth() { 774 return getWidth(); 775 } 776 777 /** 778 * Remove any characters after the last valid chip. 779 */ 780 // Visible for testing. 781 /*package*/ void sanitizeEnd() { 782 // Don't sanitize while we are waiting for pending chips to complete. 783 if (mPendingChipsCount > 0) { 784 return; 785 } 786 // Find the last chip; eliminate any commit characters after it. 787 RecipientChip[] chips = getSortedRecipients(); 788 if (chips != null && chips.length > 0) { 789 int end; 790 ImageSpan lastSpan; 791 mMoreChip = getMoreChip(); 792 if (mMoreChip != null) { 793 lastSpan = mMoreChip; 794 } else { 795 lastSpan = getLastChip(); 796 } 797 end = getSpannable().getSpanEnd(lastSpan); 798 Editable editable = getText(); 799 int length = editable.length(); 800 if (length > end) { 801 // See what characters occur after that and eliminate them. 802 if (Log.isLoggable(TAG, Log.DEBUG)) { 803 Log.d(TAG, "There were extra characters after the last tokenizable entry." 804 + editable); 805 } 806 editable.delete(end + 1, length); 807 } 808 } 809 } 810 811 /** 812 * Create a chip that represents just the email address of a recipient. At some later 813 * point, this chip will be attached to a real contact entry, if one exists. 814 */ 815 private void createReplacementChip(int tokenStart, int tokenEnd, Editable editable) { 816 if (alreadyHasChip(tokenStart, tokenEnd)) { 817 // There is already a chip present at this location. 818 // Don't recreate it. 819 return; 820 } 821 String token = editable.toString().substring(tokenStart, tokenEnd); 822 int commitCharIndex = token.trim().lastIndexOf(COMMIT_CHAR_COMMA); 823 if (commitCharIndex == token.length() - 1) { 824 token = token.substring(0, token.length() - 1); 825 } 826 RecipientEntry entry = createTokenizedEntry(token); 827 if (entry != null) { 828 String destText = createAddressText(entry); 829 // Always leave a blank space at the end of a chip. 830 int textLength = destText.length() - 1; 831 SpannableString chipText = new SpannableString(destText); 832 int end = getSelectionEnd(); 833 int start = mTokenizer != null ? mTokenizer.findTokenStart(getText(), end) : 0; 834 RecipientChip chip = null; 835 try { 836 if (!mNoChips) { 837 chip = constructChipSpan(entry, start, false); 838 chipText.setSpan(chip, 0, textLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 839 } 840 } catch (NullPointerException e) { 841 Log.e(TAG, e.getMessage(), e); 842 } 843 editable.replace(tokenStart, tokenEnd, chipText); 844 // Add this chip to the list of entries "to replace" 845 if (chip != null) { 846 if (mTemporaryRecipients == null) { 847 mTemporaryRecipients = new ArrayList<RecipientChip>(); 848 } 849 chip.setOriginalText(chipText.toString()); 850 mTemporaryRecipients.add(chip); 851 } 852 } 853 } 854 855 private RecipientEntry createTokenizedEntry(String token) { 856 if (TextUtils.isEmpty(token)) { 857 return null; 858 } 859 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(token); 860 String display = null; 861 if (isValid(token) && tokens != null && tokens.length > 0) { 862 // If we can get a name from tokenizing, then generate an entry from 863 // this. 864 display = tokens[0].getName(); 865 if (!TextUtils.isEmpty(display)) { 866 return RecipientEntry.constructGeneratedEntry(display, token); 867 } else { 868 display = tokens[0].getAddress(); 869 if (!TextUtils.isEmpty(display)) { 870 return RecipientEntry.constructFakeEntry(display); 871 } 872 } 873 } 874 // Unable to validate the token or to create a valid token from it. 875 // Just create a chip the user can edit. 876 String validatedToken = null; 877 if (mValidator != null && !mValidator.isValid(token)) { 878 // Try fixing up the entry using the validator. 879 validatedToken = mValidator.fixText(token).toString(); 880 if (!TextUtils.isEmpty(validatedToken)) { 881 if (validatedToken.contains(token)) { 882 // protect against the case of a validator with a null domain, 883 // which doesn't add a domain to the token 884 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(validatedToken); 885 if (tokenized.length > 0) { 886 validatedToken = tokenized[0].getAddress(); 887 } 888 } else { 889 // We ran into a case where the token was invalid and removed 890 // by the validator. In this case, just use the original token 891 // and let the user sort out the error chip. 892 validatedToken = null; 893 } 894 } 895 } 896 // Otherwise, fallback to just creating an editable email address chip. 897 return RecipientEntry 898 .constructFakeEntry(!TextUtils.isEmpty(validatedToken) ? validatedToken : token); 899 } 900 901 private boolean isValid(String text) { 902 return mValidator == null ? true : mValidator.isValid(text); 903 } 904 905 private String tokenizeAddress(String destination) { 906 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(destination); 907 if (tokens != null && tokens.length > 0) { 908 return tokens[0].getAddress(); 909 } 910 return destination; 911 } 912 913 @Override 914 public void setTokenizer(Tokenizer tokenizer) { 915 mTokenizer = tokenizer; 916 super.setTokenizer(mTokenizer); 917 } 918 919 @Override 920 public void setValidator(Validator validator) { 921 mValidator = validator; 922 super.setValidator(validator); 923 } 924 925 /** 926 * We cannot use the default mechanism for replaceText. Instead, 927 * we override onItemClickListener so we can get all the associated 928 * contact information including display text, address, and id. 929 */ 930 @Override 931 protected void replaceText(CharSequence text) { 932 return; 933 } 934 935 /** 936 * Dismiss any selected chips when the back key is pressed. 937 */ 938 @Override 939 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 940 if (keyCode == KeyEvent.KEYCODE_BACK) { 941 clearSelectedChip(); 942 } 943 return super.onKeyPreIme(keyCode, event); 944 } 945 946 /** 947 * Monitor key presses in this view to see if the user types 948 * any commit keys, which consist of ENTER, TAB, or DPAD_CENTER. 949 * If the user has entered text that has contact matches and types 950 * a commit key, create a chip from the topmost matching contact. 951 * If the user has entered text that has no contact matches and types 952 * a commit key, then create a chip from the text they have entered. 953 */ 954 @Override 955 public boolean onKeyUp(int keyCode, KeyEvent event) { 956 switch (keyCode) { 957 case KeyEvent.KEYCODE_ENTER: 958 case KeyEvent.KEYCODE_DPAD_CENTER: 959 if (event.hasNoModifiers()) { 960 if (commitDefault()) { 961 return true; 962 } 963 if (mSelectedChip != null) { 964 clearSelectedChip(); 965 return true; 966 } else if (focusNext()) { 967 return true; 968 } 969 } 970 break; 971 case KeyEvent.KEYCODE_TAB: 972 if (event.hasNoModifiers()) { 973 if (mSelectedChip != null) { 974 clearSelectedChip(); 975 } else { 976 commitDefault(); 977 } 978 if (focusNext()) { 979 return true; 980 } 981 } 982 } 983 return super.onKeyUp(keyCode, event); 984 } 985 986 private boolean focusNext() { 987 View next = focusSearch(View.FOCUS_DOWN); 988 if (next != null) { 989 next.requestFocus(); 990 return true; 991 } 992 return false; 993 } 994 995 /** 996 * Create a chip from the default selection. If the popup is showing, the 997 * default is the first item in the popup suggestions list. Otherwise, it is 998 * whatever the user had typed in. End represents where the the tokenizer 999 * should search for a token to turn into a chip. 1000 * @return If a chip was created from a real contact. 1001 */ 1002 private boolean commitDefault() { 1003 Editable editable = getText(); 1004 int end = getSelectionEnd(); 1005 int start = mTokenizer.findTokenStart(editable, end); 1006 1007 if (shouldCreateChip(start, end)) { 1008 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 1009 // In the middle of chip; treat this as an edit 1010 // and commit the whole token. 1011 if (whatEnd != getSelectionEnd()) { 1012 handleEdit(start, whatEnd); 1013 return true; 1014 } 1015 return commitChip(start, end , editable); 1016 } 1017 return false; 1018 } 1019 1020 private void commitByCharacter() { 1021 Editable editable = getText(); 1022 int end = getSelectionEnd(); 1023 int start = mTokenizer.findTokenStart(editable, end); 1024 if (shouldCreateChip(start, end)) { 1025 commitChip(start, end, editable); 1026 } 1027 setSelection(getText().length()); 1028 } 1029 1030 private boolean commitChip(int start, int end, Editable editable) { 1031 ListAdapter adapter = getAdapter(); 1032 if (adapter != null && adapter.getCount() > 0 && enoughToFilter() 1033 && end == getSelectionEnd()) { 1034 // choose the first entry. 1035 submitItemAtPosition(0); 1036 dismissDropDown(); 1037 return true; 1038 } else { 1039 int tokenEnd = mTokenizer.findTokenEnd(editable, start); 1040 if (editable.length() > tokenEnd + 1) { 1041 char charAt = editable.charAt(tokenEnd + 1); 1042 if (charAt == COMMIT_CHAR_COMMA || charAt == COMMIT_CHAR_SEMICOLON) { 1043 tokenEnd++; 1044 } 1045 } 1046 String text = editable.toString().substring(start, tokenEnd).trim(); 1047 clearComposingText(); 1048 if (text != null && text.length() > 0 && !text.equals(" ")) { 1049 RecipientEntry entry = createTokenizedEntry(text); 1050 if (entry != null) { 1051 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1052 CharSequence chipText = createChip(entry, false); 1053 if (chipText != null && start > -1 && end > -1) { 1054 editable.replace(start, end, chipText); 1055 } 1056 } 1057 // Only dismiss the dropdown if it is related to the text we 1058 // just committed. 1059 // For paste, it may not be as there are possibly multiple 1060 // tokens being added. 1061 if (end == getSelectionEnd()) { 1062 dismissDropDown(); 1063 } 1064 sanitizeBetween(); 1065 return true; 1066 } 1067 } 1068 return false; 1069 } 1070 1071 // Visible for testing. 1072 /* package */ void sanitizeBetween() { 1073 // Don't sanitize while we are waiting for content to chipify. 1074 if (mPendingChipsCount > 0) { 1075 return; 1076 } 1077 // Find the last chip. 1078 RecipientChip[] recips = getSortedRecipients(); 1079 if (recips != null && recips.length > 0) { 1080 RecipientChip last = recips[recips.length - 1]; 1081 RecipientChip beforeLast = null; 1082 if (recips.length > 1) { 1083 beforeLast = recips[recips.length - 2]; 1084 } 1085 int startLooking = 0; 1086 int end = getSpannable().getSpanStart(last); 1087 if (beforeLast != null) { 1088 startLooking = getSpannable().getSpanEnd(beforeLast); 1089 Editable text = getText(); 1090 if (startLooking == -1 || startLooking > text.length() - 1) { 1091 // There is nothing after this chip. 1092 return; 1093 } 1094 if (text.charAt(startLooking) == ' ') { 1095 startLooking++; 1096 } 1097 } 1098 if (startLooking >= 0 && end >= 0 && startLooking < end) { 1099 getText().delete(startLooking, end); 1100 } 1101 } 1102 } 1103 1104 private boolean shouldCreateChip(int start, int end) { 1105 return !mNoChips && hasFocus() && enoughToFilter() && !alreadyHasChip(start, end); 1106 } 1107 1108 private boolean alreadyHasChip(int start, int end) { 1109 if (mNoChips) { 1110 return true; 1111 } 1112 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 1113 if ((chips == null || chips.length == 0)) { 1114 return false; 1115 } 1116 return true; 1117 } 1118 1119 private void handleEdit(int start, int end) { 1120 if (start == -1 || end == -1) { 1121 // This chip no longer exists in the field. 1122 dismissDropDown(); 1123 return; 1124 } 1125 // This is in the middle of a chip, so select out the whole chip 1126 // and commit it. 1127 Editable editable = getText(); 1128 setSelection(end); 1129 String text = getText().toString().substring(start, end); 1130 if (!TextUtils.isEmpty(text)) { 1131 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 1132 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1133 CharSequence chipText = createChip(entry, false); 1134 int selEnd = getSelectionEnd(); 1135 if (chipText != null && start > -1 && selEnd > -1) { 1136 editable.replace(start, selEnd, chipText); 1137 } 1138 } 1139 dismissDropDown(); 1140 } 1141 1142 /** 1143 * If there is a selected chip, delegate the key events 1144 * to the selected chip. 1145 */ 1146 @Override 1147 public boolean onKeyDown(int keyCode, KeyEvent event) { 1148 if (mSelectedChip != null && keyCode == KeyEvent.KEYCODE_DEL) { 1149 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1150 mAlternatesPopup.dismiss(); 1151 } 1152 removeChip(mSelectedChip); 1153 } 1154 1155 if (keyCode == KeyEvent.KEYCODE_ENTER && event.hasNoModifiers()) { 1156 return true; 1157 } 1158 1159 return super.onKeyDown(keyCode, event); 1160 } 1161 1162 // Visible for testing. 1163 /* package */ Spannable getSpannable() { 1164 return getText(); 1165 } 1166 1167 private int getChipStart(RecipientChip chip) { 1168 return getSpannable().getSpanStart(chip); 1169 } 1170 1171 private int getChipEnd(RecipientChip chip) { 1172 return getSpannable().getSpanEnd(chip); 1173 } 1174 1175 /** 1176 * Instead of filtering on the entire contents of the edit box, 1177 * this subclass method filters on the range from 1178 * {@link Tokenizer#findTokenStart} to {@link #getSelectionEnd} 1179 * if the length of that range meets or exceeds {@link #getThreshold} 1180 * and makes sure that the range is not already a Chip. 1181 */ 1182 @Override 1183 protected void performFiltering(CharSequence text, int keyCode) { 1184 if (enoughToFilter() && !isCompletedToken(text)) { 1185 int end = getSelectionEnd(); 1186 int start = mTokenizer.findTokenStart(text, end); 1187 // If this is a RecipientChip, don't filter 1188 // on its contents. 1189 Spannable span = getSpannable(); 1190 RecipientChip[] chips = span.getSpans(start, end, RecipientChip.class); 1191 if (chips != null && chips.length > 0) { 1192 return; 1193 } 1194 } 1195 super.performFiltering(text, keyCode); 1196 } 1197 1198 // Visible for testing. 1199 /*package*/ boolean isCompletedToken(CharSequence text) { 1200 if (TextUtils.isEmpty(text)) { 1201 return false; 1202 } 1203 // Check to see if this is a completed token before filtering. 1204 int end = text.length(); 1205 int start = mTokenizer.findTokenStart(text, end); 1206 String token = text.toString().substring(start, end).trim(); 1207 if (!TextUtils.isEmpty(token)) { 1208 char atEnd = token.charAt(token.length() - 1); 1209 return atEnd == COMMIT_CHAR_COMMA || atEnd == COMMIT_CHAR_SEMICOLON; 1210 } 1211 return false; 1212 } 1213 1214 private void clearSelectedChip() { 1215 if (mSelectedChip != null) { 1216 unselectChip(mSelectedChip); 1217 mSelectedChip = null; 1218 } 1219 setCursorVisible(true); 1220 } 1221 1222 /** 1223 * Monitor touch events in the RecipientEditTextView. 1224 * If the view does not have focus, any tap on the view 1225 * will just focus the view. If the view has focus, determine 1226 * if the touch target is a recipient chip. If it is and the chip 1227 * is not selected, select it and clear any other selected chips. 1228 * If it isn't, then select that chip. 1229 */ 1230 @Override 1231 public boolean onTouchEvent(MotionEvent event) { 1232 if (!isFocused()) { 1233 // Ignore any chip taps until this view is focused. 1234 return super.onTouchEvent(event); 1235 } 1236 boolean handled = super.onTouchEvent(event); 1237 int action = event.getAction(); 1238 boolean chipWasSelected = false; 1239 if (mSelectedChip == null) { 1240 mGestureDetector.onTouchEvent(event); 1241 } 1242 if (mCopyAddress == null && action == MotionEvent.ACTION_UP) { 1243 float x = event.getX(); 1244 float y = event.getY(); 1245 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 1246 RecipientChip currentChip = findChip(offset); 1247 if (currentChip != null) { 1248 if (action == MotionEvent.ACTION_UP) { 1249 if (mSelectedChip != null && mSelectedChip != currentChip) { 1250 clearSelectedChip(); 1251 mSelectedChip = selectChip(currentChip); 1252 } else if (mSelectedChip == null) { 1253 setSelection(getText().length()); 1254 commitDefault(); 1255 mSelectedChip = selectChip(currentChip); 1256 } else { 1257 onClick(mSelectedChip, offset, x, y); 1258 } 1259 } 1260 chipWasSelected = true; 1261 handled = true; 1262 } else if (mSelectedChip != null 1263 && mSelectedChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1264 chipWasSelected = true; 1265 } 1266 } 1267 if (action == MotionEvent.ACTION_UP && !chipWasSelected) { 1268 clearSelectedChip(); 1269 } 1270 return handled; 1271 } 1272 1273 private void scrollLineIntoView(int line) { 1274 if (mScrollView != null) { 1275 mScrollView.scrollBy(0, calculateOffsetFromBottom(line)); 1276 } 1277 } 1278 1279 private void showAlternates(RecipientChip currentChip, ListPopupWindow alternatesPopup, 1280 int width, Context context) { 1281 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1282 int bottom = calculateOffsetFromBottom(line); 1283 // Align the alternates popup with the left side of the View, 1284 // regardless of the position of the chip tapped. 1285 alternatesPopup.setWidth(width); 1286 setEnabled(false); 1287 alternatesPopup.setAnchorView(this); 1288 alternatesPopup.setVerticalOffset(bottom); 1289 alternatesPopup.setAdapter(createAlternatesAdapter(currentChip)); 1290 alternatesPopup.setOnItemClickListener(mAlternatesListener); 1291 // Clear the checked item. 1292 mCheckedItem = -1; 1293 alternatesPopup.show(); 1294 ListView listView = alternatesPopup.getListView(); 1295 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1296 // Checked item would be -1 if the adapter has not 1297 // loaded the view that should be checked yet. The 1298 // variable will be set correctly when onCheckedItemChanged 1299 // is called in a separate thread. 1300 if (mCheckedItem != -1) { 1301 listView.setItemChecked(mCheckedItem, true); 1302 mCheckedItem = -1; 1303 } 1304 } 1305 1306 // Dismiss listener for alterns and single address popup. 1307 @Override 1308 public void onDismiss() { 1309 setEnabled(true); 1310 } 1311 1312 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 1313 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 1314 mAlternatesLayout, this); 1315 } 1316 1317 private ListAdapter createSingleAddressAdapter(RecipientChip currentChip) { 1318 return new SingleRecipientArrayAdapter(getContext(), mAlternatesLayout, currentChip 1319 .getEntry()); 1320 } 1321 1322 @Override 1323 public void onCheckedItemChanged(int position) { 1324 ListView listView = mAlternatesPopup.getListView(); 1325 if (listView != null && listView.getCheckedItemCount() == 0) { 1326 listView.setItemChecked(position, true); 1327 } 1328 mCheckedItem = position; 1329 } 1330 1331 // TODO: This algorithm will need a lot of tweaking after more people have used 1332 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 1333 // what comes before the finger. 1334 private int putOffsetInRange(int o) { 1335 int offset = o; 1336 Editable text = getText(); 1337 int length = text.length(); 1338 // Remove whitespace from end to find "real end" 1339 int realLength = length; 1340 for (int i = length - 1; i >= 0; i--) { 1341 if (text.charAt(i) == ' ') { 1342 realLength--; 1343 } else { 1344 break; 1345 } 1346 } 1347 1348 // If the offset is beyond or at the end of the text, 1349 // leave it alone. 1350 if (offset >= realLength) { 1351 return offset; 1352 } 1353 Editable editable = getText(); 1354 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 1355 // Keep walking backward! 1356 offset--; 1357 } 1358 return offset; 1359 } 1360 1361 private int findText(Editable text, int offset) { 1362 if (text.charAt(offset) != ' ') { 1363 return offset; 1364 } 1365 return -1; 1366 } 1367 1368 private RecipientChip findChip(int offset) { 1369 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1370 // Find the chip that contains this offset. 1371 for (int i = 0; i < chips.length; i++) { 1372 RecipientChip chip = chips[i]; 1373 int start = getChipStart(chip); 1374 int end = getChipEnd(chip); 1375 if (offset >= start && offset <= end) { 1376 return chip; 1377 } 1378 } 1379 return null; 1380 } 1381 1382 // Visible for testing. 1383 // Use this method to generate text to add to the list of addresses. 1384 /* package */String createAddressText(RecipientEntry entry) { 1385 String display = entry.getDisplayName(); 1386 String address = entry.getDestination(); 1387 if (TextUtils.isEmpty(display) || TextUtils.equals(display, address)) { 1388 display = null; 1389 } 1390 if (address != null) { 1391 // Tokenize out the address in case the address already 1392 // contained the username as well. 1393 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(address); 1394 if (tokenized != null && tokenized.length > 0) { 1395 address = tokenized[0].getAddress(); 1396 } 1397 } 1398 Rfc822Token token = new Rfc822Token(display, address, null); 1399 String trimmedDisplayText = token.toString().trim(); 1400 int index = trimmedDisplayText.indexOf(","); 1401 return mTokenizer != null && !TextUtils.isEmpty(trimmedDisplayText) 1402 && index < trimmedDisplayText.length() - 1 ? (String) mTokenizer 1403 .terminateToken(trimmedDisplayText) : trimmedDisplayText; 1404 } 1405 1406 // Visible for testing. 1407 // Use this method to generate text to display in a chip. 1408 /*package*/ String createChipDisplayText(RecipientEntry entry) { 1409 String display = entry.getDisplayName(); 1410 String address = entry.getDestination(); 1411 if (TextUtils.isEmpty(display) || TextUtils.equals(display, address)) { 1412 display = null; 1413 } 1414 if (address != null) { 1415 // Tokenize out the address in case the address already 1416 // contained the username as well. 1417 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(address); 1418 if (tokenized != null && tokenized.length > 0) { 1419 address = tokenized[0].getAddress(); 1420 } 1421 } 1422 if (!TextUtils.isEmpty(display)) { 1423 return display; 1424 } else if (!TextUtils.isEmpty(address)){ 1425 return address; 1426 } else { 1427 return new Rfc822Token(display, address, null).toString(); 1428 } 1429 } 1430 1431 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 1432 String displayText = createAddressText(entry); 1433 if (TextUtils.isEmpty(displayText)) { 1434 return null; 1435 } 1436 SpannableString chipText = null; 1437 // Always leave a blank space at the end of a chip. 1438 int end = getSelectionEnd(); 1439 int start = mTokenizer.findTokenStart(getText(), end); 1440 int textLength = displayText.length()-1; 1441 chipText = new SpannableString(displayText); 1442 if (!mNoChips) { 1443 try { 1444 RecipientChip chip = constructChipSpan(entry, start, pressed); 1445 chipText.setSpan(chip, 0, textLength, 1446 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1447 chip.setOriginalText(chipText.toString()); 1448 } catch (NullPointerException e) { 1449 Log.e(TAG, e.getMessage(), e); 1450 return null; 1451 } 1452 } 1453 return chipText; 1454 } 1455 1456 /** 1457 * When an item in the suggestions list has been clicked, create a chip from the 1458 * contact information of the selected item. 1459 */ 1460 @Override 1461 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1462 submitItemAtPosition(position); 1463 } 1464 1465 private void submitItemAtPosition(int position) { 1466 RecipientEntry entry = createValidatedEntry( 1467 (RecipientEntry)getAdapter().getItem(position)); 1468 if (entry == null) { 1469 return; 1470 } 1471 clearComposingText(); 1472 1473 int end = getSelectionEnd(); 1474 int start = mTokenizer.findTokenStart(getText(), end); 1475 1476 Editable editable = getText(); 1477 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1478 CharSequence chip = createChip(entry, false); 1479 if (chip != null && start >= 0 && end >= 0) { 1480 editable.replace(start, end, chip); 1481 } 1482 sanitizeBetween(); 1483 } 1484 1485 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1486 if (item == null) { 1487 return null; 1488 } 1489 final RecipientEntry entry; 1490 // If the display name and the address are the same, or if this is a 1491 // valid contact, but the destination is invalid, then make this a fake 1492 // recipient that is editable. 1493 String destination = item.getDestination(); 1494 if (RecipientEntry.isCreatedRecipient(item.getContactId()) 1495 && (TextUtils.isEmpty(item.getDisplayName()) 1496 || TextUtils.equals(item.getDisplayName(), destination) 1497 || (mValidator != null && !mValidator.isValid(destination)))) { 1498 entry = RecipientEntry.constructFakeEntry(destination); 1499 } else { 1500 entry = item; 1501 } 1502 return entry; 1503 } 1504 1505 /** Returns a collection of contact Id for each chip inside this View. */ 1506 /* package */ Collection<Long> getContactIds() { 1507 final Set<Long> result = new HashSet<Long>(); 1508 RecipientChip[] chips = getSortedRecipients(); 1509 if (chips != null) { 1510 for (RecipientChip chip : chips) { 1511 result.add(chip.getContactId()); 1512 } 1513 } 1514 return result; 1515 } 1516 1517 1518 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1519 /* package */ Collection<Long> getDataIds() { 1520 final Set<Long> result = new HashSet<Long>(); 1521 RecipientChip [] chips = getSortedRecipients(); 1522 if (chips != null) { 1523 for (RecipientChip chip : chips) { 1524 result.add(chip.getDataId()); 1525 } 1526 } 1527 return result; 1528 } 1529 1530 // Visible for testing. 1531 /* package */RecipientChip[] getSortedRecipients() { 1532 RecipientChip[] recips = getSpannable() 1533 .getSpans(0, getText().length(), RecipientChip.class); 1534 ArrayList<RecipientChip> recipientsList = new ArrayList<RecipientChip>(Arrays 1535 .asList(recips)); 1536 final Spannable spannable = getSpannable(); 1537 Collections.sort(recipientsList, new Comparator<RecipientChip>() { 1538 1539 @Override 1540 public int compare(RecipientChip first, RecipientChip second) { 1541 int firstStart = spannable.getSpanStart(first); 1542 int secondStart = spannable.getSpanStart(second); 1543 if (firstStart < secondStart) { 1544 return -1; 1545 } else if (firstStart > secondStart) { 1546 return 1; 1547 } else { 1548 return 0; 1549 } 1550 } 1551 }); 1552 return recipientsList.toArray(new RecipientChip[recipientsList.size()]); 1553 } 1554 1555 @Override 1556 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1557 return false; 1558 } 1559 1560 @Override 1561 public void onDestroyActionMode(ActionMode mode) { 1562 } 1563 1564 @Override 1565 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1566 return false; 1567 } 1568 1569 /** 1570 * No chips are selectable. 1571 */ 1572 @Override 1573 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1574 return false; 1575 } 1576 1577 // Visible for testing. 1578 /* package */ImageSpan getMoreChip() { 1579 MoreImageSpan[] moreSpans = getSpannable().getSpans(0, getText().length(), 1580 MoreImageSpan.class); 1581 return moreSpans != null && moreSpans.length > 0 ? moreSpans[0] : null; 1582 } 1583 1584 private MoreImageSpan createMoreSpan(int count) { 1585 String moreText = String.format(mMoreItem.getText().toString(), count); 1586 TextPaint morePaint = new TextPaint(getPaint()); 1587 morePaint.setTextSize(mMoreItem.getTextSize()); 1588 morePaint.setColor(mMoreItem.getCurrentTextColor()); 1589 int width = (int)morePaint.measureText(moreText) + mMoreItem.getPaddingLeft() 1590 + mMoreItem.getPaddingRight(); 1591 int height = getLineHeight(); 1592 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1593 Canvas canvas = new Canvas(drawable); 1594 int adjustedHeight = height; 1595 Layout layout = getLayout(); 1596 if (layout != null) { 1597 adjustedHeight -= layout.getLineDescent(0); 1598 } 1599 canvas.drawText(moreText, 0, moreText.length(), 0, adjustedHeight, morePaint); 1600 1601 Drawable result = new BitmapDrawable(getResources(), drawable); 1602 result.setBounds(0, 0, width, height); 1603 return new MoreImageSpan(result); 1604 } 1605 1606 // Visible for testing. 1607 /*package*/ void createMoreChipPlainText() { 1608 // Take the first <= CHIP_LIMIT addresses and get to the end of the second one. 1609 Editable text = getText(); 1610 int start = 0; 1611 int end = start; 1612 for (int i = 0; i < CHIP_LIMIT; i++) { 1613 end = movePastTerminators(mTokenizer.findTokenEnd(text, start)); 1614 start = end; // move to the next token and get its end. 1615 } 1616 // Now, count total addresses. 1617 start = 0; 1618 int tokenCount = countTokens(text); 1619 MoreImageSpan moreSpan = createMoreSpan(tokenCount - CHIP_LIMIT); 1620 SpannableString chipText = new SpannableString(text.subSequence(end, text.length())); 1621 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1622 text.replace(end, text.length(), chipText); 1623 mMoreChip = moreSpan; 1624 } 1625 1626 // Visible for testing. 1627 /* package */int countTokens(Editable text) { 1628 int tokenCount = 0; 1629 int start = 0; 1630 while (start < text.length()) { 1631 start = movePastTerminators(mTokenizer.findTokenEnd(text, start)); 1632 tokenCount++; 1633 if (start >= text.length()) { 1634 break; 1635 } 1636 } 1637 return tokenCount; 1638 } 1639 1640 /** 1641 * Create the more chip. The more chip is text that replaces any chips that 1642 * do not fit in the pre-defined available space when the 1643 * RecipientEditTextView loses focus. 1644 */ 1645 // Visible for testing. 1646 /* package */ void createMoreChip() { 1647 if (mNoChips) { 1648 createMoreChipPlainText(); 1649 return; 1650 } 1651 1652 if (!mShouldShrink) { 1653 return; 1654 } 1655 1656 ImageSpan[] tempMore = getSpannable().getSpans(0, getText().length(), MoreImageSpan.class); 1657 if (tempMore.length > 0) { 1658 getSpannable().removeSpan(tempMore[0]); 1659 } 1660 RecipientChip[] recipients = getSortedRecipients(); 1661 1662 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1663 mMoreChip = null; 1664 return; 1665 } 1666 Spannable spannable = getSpannable(); 1667 int numRecipients = recipients.length; 1668 int overage = numRecipients - CHIP_LIMIT; 1669 MoreImageSpan moreSpan = createMoreSpan(overage); 1670 mRemovedSpans = new ArrayList<RecipientChip>(); 1671 int totalReplaceStart = 0; 1672 int totalReplaceEnd = 0; 1673 Editable text = getText(); 1674 for (int i = numRecipients - overage; i < recipients.length; i++) { 1675 mRemovedSpans.add(recipients[i]); 1676 if (i == numRecipients - overage) { 1677 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1678 } 1679 if (i == recipients.length - 1) { 1680 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1681 } 1682 if (mTemporaryRecipients == null || !mTemporaryRecipients.contains(recipients[i])) { 1683 int spanStart = spannable.getSpanStart(recipients[i]); 1684 int spanEnd = spannable.getSpanEnd(recipients[i]); 1685 recipients[i].setOriginalText(text.toString().substring(spanStart, spanEnd)); 1686 } 1687 spannable.removeSpan(recipients[i]); 1688 } 1689 if (totalReplaceEnd < text.length()) { 1690 totalReplaceEnd = text.length(); 1691 } 1692 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1693 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1694 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1695 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1696 text.replace(start, end, chipText); 1697 mMoreChip = moreSpan; 1698 } 1699 1700 /** 1701 * Replace the more chip, if it exists, with all of the recipient chips it had 1702 * replaced when the RecipientEditTextView gains focus. 1703 */ 1704 // Visible for testing. 1705 /*package*/ void removeMoreChip() { 1706 if (mMoreChip != null) { 1707 Spannable span = getSpannable(); 1708 span.removeSpan(mMoreChip); 1709 mMoreChip = null; 1710 // Re-add the spans that were removed. 1711 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1712 // Recreate each removed span. 1713 RecipientChip[] recipients = getSortedRecipients(); 1714 // Start the search for tokens after the last currently visible 1715 // chip. 1716 if (recipients == null || recipients.length == 0) { 1717 return; 1718 } 1719 int end = span.getSpanEnd(recipients[recipients.length - 1]); 1720 Editable editable = getText(); 1721 for (RecipientChip chip : mRemovedSpans) { 1722 int chipStart; 1723 int chipEnd; 1724 String token; 1725 // Need to find the location of the chip, again. 1726 token = (String) chip.getOriginalText(); 1727 // As we find the matching recipient for the remove spans, 1728 // reduce the size of the string we need to search. 1729 // That way, if there are duplicates, we always find the correct 1730 // recipient. 1731 chipStart = editable.toString().indexOf(token, end); 1732 end = chipEnd = Math.min(editable.length(), chipStart + token.length()); 1733 // Only set the span if we found a matching token. 1734 if (chipStart != -1) { 1735 editable.setSpan(chip, chipStart, chipEnd, 1736 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1737 } 1738 } 1739 mRemovedSpans.clear(); 1740 } 1741 } 1742 } 1743 1744 /** 1745 * Show specified chip as selected. If the RecipientChip is just an email address, 1746 * selecting the chip will take the contents of the chip and place it at 1747 * the end of the RecipientEditTextView for inline editing. If the 1748 * RecipientChip is a complete contact, then selecting the chip 1749 * will change the background color of the chip, show the delete icon, 1750 * and a popup window with the address in use highlighted and any other 1751 * alternate addresses for the contact. 1752 * @param currentChip Chip to select. 1753 * @return A RecipientChip in the selected state or null if the chip 1754 * just contained an email address. 1755 */ 1756 private RecipientChip selectChip(RecipientChip currentChip) { 1757 if (currentChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1758 CharSequence text = currentChip.getValue(); 1759 Editable editable = getText(); 1760 removeChip(currentChip); 1761 editable.append(text); 1762 setCursorVisible(true); 1763 setSelection(editable.length()); 1764 return new RecipientChip(null, RecipientEntry.constructFakeEntry((String) text), -1); 1765 } else if (currentChip.getContactId() == RecipientEntry.GENERATED_CONTACT) { 1766 int start = getChipStart(currentChip); 1767 int end = getChipEnd(currentChip); 1768 getSpannable().removeSpan(currentChip); 1769 RecipientChip newChip; 1770 try { 1771 if (mNoChips) { 1772 return null; 1773 } 1774 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1775 } catch (NullPointerException e) { 1776 Log.e(TAG, e.getMessage(), e); 1777 return null; 1778 } 1779 Editable editable = getText(); 1780 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1781 if (start == -1 || end == -1) { 1782 Log.d(TAG, "The chip being selected no longer exists but should."); 1783 } else { 1784 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1785 } 1786 newChip.setSelected(true); 1787 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1788 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1789 } 1790 showAddress(newChip, mAddressPopup, getWidth(), getContext()); 1791 setCursorVisible(false); 1792 return newChip; 1793 } else { 1794 int start = getChipStart(currentChip); 1795 int end = getChipEnd(currentChip); 1796 getSpannable().removeSpan(currentChip); 1797 RecipientChip newChip; 1798 try { 1799 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1800 } catch (NullPointerException e) { 1801 Log.e(TAG, e.getMessage(), e); 1802 return null; 1803 } 1804 Editable editable = getText(); 1805 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1806 if (start == -1 || end == -1) { 1807 Log.d(TAG, "The chip being selected no longer exists but should."); 1808 } else { 1809 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1810 } 1811 newChip.setSelected(true); 1812 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1813 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1814 } 1815 showAlternates(newChip, mAlternatesPopup, getWidth(), getContext()); 1816 setCursorVisible(false); 1817 return newChip; 1818 } 1819 } 1820 1821 1822 private void showAddress(final RecipientChip currentChip, final ListPopupWindow popup, 1823 int width, Context context) { 1824 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1825 int bottom = calculateOffsetFromBottom(line); 1826 // Align the alternates popup with the left side of the View, 1827 // regardless of the position of the chip tapped. 1828 setEnabled(false); 1829 popup.setWidth(width); 1830 popup.setAnchorView(this); 1831 popup.setVerticalOffset(bottom); 1832 popup.setAdapter(createSingleAddressAdapter(currentChip)); 1833 popup.setOnItemClickListener(new OnItemClickListener() { 1834 @Override 1835 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1836 unselectChip(currentChip); 1837 popup.dismiss(); 1838 } 1839 }); 1840 popup.show(); 1841 ListView listView = popup.getListView(); 1842 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1843 listView.setItemChecked(0, true); 1844 } 1845 1846 /** 1847 * Remove selection from this chip. Unselecting a RecipientChip will render 1848 * the chip without a delete icon and with an unfocused background. This is 1849 * called when the RecipientChip no longer has focus. 1850 */ 1851 private void unselectChip(RecipientChip chip) { 1852 int start = getChipStart(chip); 1853 int end = getChipEnd(chip); 1854 Editable editable = getText(); 1855 mSelectedChip = null; 1856 if (start == -1 || end == -1) { 1857 Log.w(TAG, "The chip doesn't exist or may be a chip a user was editing"); 1858 setSelection(editable.length()); 1859 commitDefault(); 1860 } else { 1861 getSpannable().removeSpan(chip); 1862 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1863 editable.removeSpan(chip); 1864 try { 1865 if (!mNoChips) { 1866 editable.setSpan(constructChipSpan(chip.getEntry(), start, false), start, end, 1867 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1868 } 1869 } catch (NullPointerException e) { 1870 Log.e(TAG, e.getMessage(), e); 1871 } 1872 } 1873 setCursorVisible(true); 1874 setSelection(editable.length()); 1875 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1876 mAlternatesPopup.dismiss(); 1877 } 1878 } 1879 1880 /** 1881 * Return whether a touch event was inside the delete target of 1882 * a selected chip. It is in the delete target if: 1883 * 1) the x and y points of the event are within the 1884 * delete assset. 1885 * 2) the point tapped would have caused a cursor to appear 1886 * right after the selected chip. 1887 * @return boolean 1888 */ 1889 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1890 // Figure out the bounds of this chip and whether or not 1891 // the user clicked in the X portion. 1892 return chip.isSelected() && offset == getChipEnd(chip); 1893 } 1894 1895 /** 1896 * Remove the chip and any text associated with it from the RecipientEditTextView. 1897 */ 1898 // Visible for testing. 1899 /*pacakge*/ void removeChip(RecipientChip chip) { 1900 Spannable spannable = getSpannable(); 1901 int spanStart = spannable.getSpanStart(chip); 1902 int spanEnd = spannable.getSpanEnd(chip); 1903 Editable text = getText(); 1904 int toDelete = spanEnd; 1905 boolean wasSelected = chip == mSelectedChip; 1906 // Clear that there is a selected chip before updating any text. 1907 if (wasSelected) { 1908 mSelectedChip = null; 1909 } 1910 // Always remove trailing spaces when removing a chip. 1911 while (toDelete >= 0 && toDelete < text.length() && text.charAt(toDelete) == ' ') { 1912 toDelete++; 1913 } 1914 spannable.removeSpan(chip); 1915 text.delete(spanStart, toDelete); 1916 if (wasSelected) { 1917 clearSelectedChip(); 1918 } 1919 } 1920 1921 /** 1922 * Replace this currently selected chip with a new chip 1923 * that uses the contact data provided. 1924 */ 1925 // Visible for testing. 1926 /*package*/ void replaceChip(RecipientChip chip, RecipientEntry entry) { 1927 boolean wasSelected = chip == mSelectedChip; 1928 if (wasSelected) { 1929 mSelectedChip = null; 1930 } 1931 int start = getChipStart(chip); 1932 int end = getChipEnd(chip); 1933 getSpannable().removeSpan(chip); 1934 Editable editable = getText(); 1935 CharSequence chipText = createChip(entry, false); 1936 if (chipText != null) { 1937 if (start == -1 || end == -1) { 1938 Log.e(TAG, "The chip to replace does not exist but should."); 1939 editable.insert(0, chipText); 1940 } else { 1941 if (!TextUtils.isEmpty(chipText)) { 1942 // There may be a space to replace with this chip's new 1943 // associated 1944 // space. Check for it 1945 int toReplace = end; 1946 while (toReplace >= 0 && toReplace < editable.length() 1947 && editable.charAt(toReplace) == ' ') { 1948 toReplace++; 1949 } 1950 editable.replace(start, toReplace, chipText); 1951 } 1952 } 1953 } 1954 setCursorVisible(true); 1955 if (wasSelected) { 1956 clearSelectedChip(); 1957 } 1958 } 1959 1960 /** 1961 * Handle click events for a chip. When a selected chip receives a click 1962 * event, see if that event was in the delete icon. If so, delete it. 1963 * Otherwise, unselect the chip. 1964 */ 1965 public void onClick(RecipientChip chip, int offset, float x, float y) { 1966 if (chip.isSelected()) { 1967 if (isInDelete(chip, offset, x, y)) { 1968 removeChip(chip); 1969 } else { 1970 clearSelectedChip(); 1971 } 1972 } 1973 } 1974 1975 private boolean chipsPending() { 1976 return mPendingChipsCount > 0 || (mRemovedSpans != null && mRemovedSpans.size() > 0); 1977 } 1978 1979 @Override 1980 public void removeTextChangedListener(TextWatcher watcher) { 1981 mTextWatcher = null; 1982 super.removeTextChangedListener(watcher); 1983 } 1984 1985 private class RecipientTextWatcher implements TextWatcher { 1986 1987 @Override 1988 public void afterTextChanged(Editable s) { 1989 // If the text has been set to null or empty, make sure we remove 1990 // all the spans we applied. 1991 if (TextUtils.isEmpty(s)) { 1992 // Remove all the chips spans. 1993 Spannable spannable = getSpannable(); 1994 RecipientChip[] chips = spannable.getSpans(0, getText().length(), 1995 RecipientChip.class); 1996 for (RecipientChip chip : chips) { 1997 spannable.removeSpan(chip); 1998 } 1999 if (mMoreChip != null) { 2000 spannable.removeSpan(mMoreChip); 2001 } 2002 return; 2003 } 2004 // Get whether there are any recipients pending addition to the 2005 // view. If there are, don't do anything in the text watcher. 2006 if (chipsPending()) { 2007 return; 2008 } 2009 // If the user is editing a chip, don't clear it. 2010 if (mSelectedChip != null 2011 && mSelectedChip.getContactId() != RecipientEntry.INVALID_CONTACT) { 2012 setCursorVisible(true); 2013 setSelection(getText().length()); 2014 clearSelectedChip(); 2015 } 2016 int length = s.length(); 2017 // Make sure there is content there to parse and that it is 2018 // not just the commit character. 2019 if (length > 1) { 2020 char last; 2021 int end = getSelectionEnd() == 0 ? 0 : getSelectionEnd() - 1; 2022 int len = length() - 1; 2023 if (end != len) { 2024 last = s.charAt(end); 2025 } else { 2026 last = s.charAt(len); 2027 } 2028 if (last == COMMIT_CHAR_SEMICOLON || last == COMMIT_CHAR_COMMA) { 2029 commitByCharacter(); 2030 } else if (last == COMMIT_CHAR_SPACE) { 2031 // Check if this is a valid email address. If it is, 2032 // commit it. 2033 String text = getText().toString(); 2034 int tokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 2035 String sub = text.substring(tokenStart, mTokenizer.findTokenEnd(text, 2036 tokenStart)); 2037 if (!TextUtils.isEmpty(sub) && mValidator != null && mValidator.isValid(sub)) { 2038 commitByCharacter(); 2039 } 2040 } 2041 } 2042 } 2043 2044 @Override 2045 public void onTextChanged(CharSequence s, int start, int before, int count) { 2046 // This is a delete; check to see if the insertion point is on a space 2047 // following a chip. 2048 if (before > count) { 2049 // If the item deleted is a space, and the thing before the 2050 // space is a chip, delete the entire span. 2051 int selStart = getSelectionStart(); 2052 RecipientChip[] repl = getSpannable().getSpans(selStart, selStart, 2053 RecipientChip.class); 2054 if (repl.length > 0) { 2055 // There is a chip there! Just remove it. 2056 Editable editable = getText(); 2057 // Add the separator token. 2058 int tokenStart = mTokenizer.findTokenStart(editable, selStart); 2059 int tokenEnd = mTokenizer.findTokenEnd(editable, tokenStart); 2060 tokenEnd = tokenEnd + 1; 2061 if (tokenEnd > editable.length()) { 2062 tokenEnd = editable.length(); 2063 } 2064 editable.delete(tokenStart, tokenEnd); 2065 getSpannable().removeSpan(repl[0]); 2066 } 2067 } 2068 } 2069 2070 @Override 2071 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 2072 // Do nothing. 2073 } 2074 } 2075 2076 /** 2077 * Handles pasting a {@link ClipData} to this {@link RecipientEditTextView}. 2078 */ 2079 private void handlePasteClip(ClipData clip) { 2080 removeTextChangedListener(mTextWatcher); 2081 2082 if (clip != null && clip.getDescription().hasMimeType(ClipDescription.MIMETYPE_TEXT_PLAIN)){ 2083 for (int i = 0; i < clip.getItemCount(); i++) { 2084 CharSequence paste = clip.getItemAt(i).getText(); 2085 if (paste != null) { 2086 int start = getSelectionStart(); 2087 int end = getSelectionEnd(); 2088 Editable editable = getText(); 2089 if (start >= 0 && end >= 0 && start != end) { 2090 editable.append(paste, start, end); 2091 } else { 2092 editable.insert(end, paste); 2093 } 2094 handlePasteAndReplace(); 2095 } 2096 } 2097 } 2098 2099 mHandler.post(mAddTextWatcher); 2100 } 2101 2102 @Override 2103 public boolean onTextContextMenuItem(int id) { 2104 if (id == android.R.id.paste) { 2105 ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService( 2106 Context.CLIPBOARD_SERVICE); 2107 handlePasteClip(clipboard.getPrimaryClip()); 2108 return true; 2109 } 2110 return super.onTextContextMenuItem(id); 2111 } 2112 2113 private void handlePasteAndReplace() { 2114 ArrayList<RecipientChip> created = handlePaste(); 2115 if (created != null && created.size() > 0) { 2116 // Perform reverse lookups on the pasted contacts. 2117 IndividualReplacementTask replace = new IndividualReplacementTask(); 2118 replace.execute(created); 2119 } 2120 } 2121 2122 // Visible for testing. 2123 /* package */ArrayList<RecipientChip> handlePaste() { 2124 String text = getText().toString(); 2125 int originalTokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 2126 String lastAddress = text.substring(originalTokenStart); 2127 int tokenStart = originalTokenStart; 2128 int prevTokenStart = tokenStart; 2129 RecipientChip findChip = null; 2130 ArrayList<RecipientChip> created = new ArrayList<RecipientChip>(); 2131 if (tokenStart != 0) { 2132 // There are things before this! 2133 while (tokenStart != 0 && findChip == null) { 2134 prevTokenStart = tokenStart; 2135 tokenStart = mTokenizer.findTokenStart(text, tokenStart); 2136 findChip = findChip(tokenStart); 2137 } 2138 if (tokenStart != originalTokenStart) { 2139 if (findChip != null) { 2140 tokenStart = prevTokenStart; 2141 } 2142 int tokenEnd; 2143 RecipientChip createdChip; 2144 while (tokenStart < originalTokenStart) { 2145 tokenEnd = movePastTerminators(mTokenizer.findTokenEnd(text, tokenStart)); 2146 commitChip(tokenStart, tokenEnd, getText()); 2147 createdChip = findChip(tokenStart); 2148 // +1 for the space at the end. 2149 tokenStart = getSpannable().getSpanEnd(createdChip) + 1; 2150 created.add(createdChip); 2151 } 2152 } 2153 } 2154 // Take a look at the last token. If the token has been completed with a 2155 // commit character, create a chip. 2156 if (isCompletedToken(lastAddress)) { 2157 Editable editable = getText(); 2158 tokenStart = editable.toString().indexOf(lastAddress, originalTokenStart); 2159 commitChip(tokenStart, editable.length(), editable); 2160 created.add(findChip(tokenStart)); 2161 } 2162 return created; 2163 } 2164 2165 // Visible for testing. 2166 /* package */int movePastTerminators(int tokenEnd) { 2167 if (tokenEnd >= length()) { 2168 return tokenEnd; 2169 } 2170 char atEnd = getText().toString().charAt(tokenEnd); 2171 if (atEnd == COMMIT_CHAR_COMMA || atEnd == COMMIT_CHAR_SEMICOLON) { 2172 tokenEnd++; 2173 } 2174 // This token had not only an end token character, but also a space 2175 // separating it from the next token. 2176 if (tokenEnd < length() && getText().toString().charAt(tokenEnd) == ' ') { 2177 tokenEnd++; 2178 } 2179 return tokenEnd; 2180 } 2181 2182 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 2183 private RecipientChip createFreeChip(RecipientEntry entry) { 2184 try { 2185 if (mNoChips) { 2186 return null; 2187 } 2188 return constructChipSpan(entry, -1, false); 2189 } catch (NullPointerException e) { 2190 Log.e(TAG, e.getMessage(), e); 2191 return null; 2192 } 2193 } 2194 2195 @Override 2196 protected Void doInBackground(Void... params) { 2197 if (mIndividualReplacements != null) { 2198 mIndividualReplacements.cancel(true); 2199 } 2200 // For each chip in the list, look up the matching contact. 2201 // If there is a match, replace that chip with the matching 2202 // chip. 2203 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 2204 RecipientChip[] existingChips = getSortedRecipients(); 2205 for (int i = 0; i < existingChips.length; i++) { 2206 originalRecipients.add(existingChips[i]); 2207 } 2208 if (mRemovedSpans != null) { 2209 originalRecipients.addAll(mRemovedSpans); 2210 } 2211 String[] addresses = new String[originalRecipients.size()]; 2212 RecipientChip chip; 2213 for (int i = 0; i < originalRecipients.size(); i++) { 2214 chip = originalRecipients.get(i); 2215 if (chip != null) { 2216 addresses[i] = createAddressText(chip.getEntry()); 2217 } 2218 } 2219 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 2220 .getMatchingRecipients(getContext(), addresses); 2221 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 2222 for (final RecipientChip temp : originalRecipients) { 2223 RecipientEntry entry = null; 2224 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 2225 && getSpannable().getSpanStart(temp) != -1) { 2226 // Replace this. 2227 entry = createValidatedEntry(entries.get(tokenizeAddress(temp.getEntry() 2228 .getDestination()))); 2229 } 2230 if (entry != null) { 2231 replacements.add(createFreeChip(entry)); 2232 } else { 2233 replacements.add(temp); 2234 } 2235 } 2236 if (replacements != null && replacements.size() > 0) { 2237 mHandler.post(new Runnable() { 2238 @Override 2239 public void run() { 2240 SpannableStringBuilder text = new SpannableStringBuilder(getText() 2241 .toString()); 2242 Editable oldText = getText(); 2243 int start, end; 2244 int i = 0; 2245 for (RecipientChip chip : originalRecipients) { 2246 start = oldText.getSpanStart(chip); 2247 if (start != -1) { 2248 end = oldText.getSpanEnd(chip); 2249 oldText.removeSpan(chip); 2250 // Leave a spot for the space! 2251 RecipientChip replacement = replacements.get(i); 2252 text.setSpan(replacement, start, end, 2253 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 2254 replacement.setOriginalText(text.toString().substring(start, end)); 2255 } 2256 i++; 2257 } 2258 originalRecipients.clear(); 2259 setText(text); 2260 } 2261 }); 2262 } 2263 return null; 2264 } 2265 } 2266 2267 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 2268 @SuppressWarnings("unchecked") 2269 @Override 2270 protected Void doInBackground(Object... params) { 2271 // For each chip in the list, look up the matching contact. 2272 // If there is a match, replace that chip with the matching 2273 // chip. 2274 final ArrayList<RecipientChip> originalRecipients = 2275 (ArrayList<RecipientChip>) params[0]; 2276 String[] addresses = new String[originalRecipients.size()]; 2277 RecipientChip chip; 2278 for (int i = 0; i < originalRecipients.size(); i++) { 2279 chip = originalRecipients.get(i); 2280 if (chip != null) { 2281 addresses[i] = createAddressText(chip.getEntry()); 2282 } 2283 } 2284 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 2285 .getMatchingRecipients(getContext(), addresses); 2286 for (final RecipientChip temp : originalRecipients) { 2287 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 2288 && getSpannable().getSpanStart(temp) != -1) { 2289 // Replace this. 2290 final RecipientEntry entry = createValidatedEntry(entries 2291 .get(tokenizeAddress(temp.getEntry().getDestination()).toLowerCase())); 2292 if (entry != null) { 2293 mHandler.post(new Runnable() { 2294 @Override 2295 public void run() { 2296 replaceChip(temp, entry); 2297 } 2298 }); 2299 } 2300 } 2301 } 2302 return null; 2303 } 2304 } 2305 2306 2307 /** 2308 * MoreImageSpan is a simple class created for tracking the existence of a 2309 * more chip across activity restarts/ 2310 */ 2311 private class MoreImageSpan extends ImageSpan { 2312 public MoreImageSpan(Drawable b) { 2313 super(b); 2314 } 2315 } 2316 2317 @Override 2318 public boolean onDown(MotionEvent e) { 2319 return false; 2320 } 2321 2322 @Override 2323 public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { 2324 // Do nothing. 2325 return false; 2326 } 2327 2328 @Override 2329 public void onLongPress(MotionEvent event) { 2330 if (mSelectedChip != null) { 2331 return; 2332 } 2333 float x = event.getX(); 2334 float y = event.getY(); 2335 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 2336 RecipientChip currentChip = findChip(offset); 2337 if (currentChip != null) { 2338 if (mDragEnabled) { 2339 // Start drag-and-drop for the selected chip. 2340 startDrag(currentChip); 2341 } else { 2342 // Copy the selected chip email address. 2343 showCopyDialog(currentChip.getEntry().getDestination()); 2344 } 2345 } 2346 } 2347 2348 /** 2349 * Enables drag-and-drop for chips. 2350 */ 2351 public void enableDrag() { 2352 mDragEnabled = true; 2353 } 2354 2355 /** 2356 * Starts drag-and-drop for the selected chip. 2357 */ 2358 private void startDrag(RecipientChip currentChip) { 2359 String address = currentChip.getEntry().getDestination(); 2360 ClipData data = ClipData.newPlainText(address, address + COMMIT_CHAR_COMMA); 2361 2362 // Start drag mode. 2363 startDrag(data, new RecipientChipShadow(currentChip), null, 0); 2364 2365 // Remove the current chip, so drag-and-drop will result in a move. 2366 // TODO (phamm): consider readd this chip if it's dropped outside a target. 2367 removeChip(currentChip); 2368 } 2369 2370 /** 2371 * Handles drag event. 2372 */ 2373 @Override 2374 public boolean onDragEvent(DragEvent event) { 2375 switch (event.getAction()) { 2376 case DragEvent.ACTION_DRAG_STARTED: 2377 // Only handle plain text drag and drop. 2378 return event.getClipDescription().hasMimeType(ClipDescription.MIMETYPE_TEXT_PLAIN); 2379 case DragEvent.ACTION_DRAG_ENTERED: 2380 requestFocus(); 2381 return true; 2382 case DragEvent.ACTION_DROP: 2383 handlePasteClip(event.getClipData()); 2384 return true; 2385 } 2386 return false; 2387 } 2388 2389 /** 2390 * Drag shadow for a {@link RecipientChip}. 2391 */ 2392 private final class RecipientChipShadow extends DragShadowBuilder { 2393 private final RecipientChip mChip; 2394 2395 public RecipientChipShadow(RecipientChip chip) { 2396 mChip = chip; 2397 } 2398 2399 @Override 2400 public void onProvideShadowMetrics(Point shadowSize, Point shadowTouchPoint) { 2401 Rect rect = mChip.getDrawable().getBounds(); 2402 shadowSize.set(rect.width(), rect.height()); 2403 shadowTouchPoint.set(rect.centerX(), rect.centerY()); 2404 } 2405 2406 @Override 2407 public void onDrawShadow(Canvas canvas) { 2408 mChip.getDrawable().draw(canvas); 2409 } 2410 } 2411 2412 private void showCopyDialog(final String address) { 2413 mCopyAddress = address; 2414 mCopyDialog.setTitle(address); 2415 mCopyDialog.setContentView(R.layout.copy_chip_dialog_layout); 2416 mCopyDialog.setCancelable(true); 2417 mCopyDialog.setCanceledOnTouchOutside(true); 2418 mCopyDialog.findViewById(android.R.id.button1).setOnClickListener(this); 2419 mCopyDialog.setOnDismissListener(this); 2420 mCopyDialog.show(); 2421 } 2422 2423 @Override 2424 public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) { 2425 // Do nothing. 2426 return false; 2427 } 2428 2429 @Override 2430 public void onShowPress(MotionEvent e) { 2431 // Do nothing. 2432 } 2433 2434 @Override 2435 public boolean onSingleTapUp(MotionEvent e) { 2436 // Do nothing. 2437 return false; 2438 } 2439 2440 @Override 2441 public void onDismiss(DialogInterface dialog) { 2442 mCopyAddress = null; 2443 } 2444 2445 @Override 2446 public void onClick(View v) { 2447 // Copy this to the clipboard. 2448 ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService( 2449 Context.CLIPBOARD_SERVICE); 2450 clipboard.setPrimaryClip(ClipData.newPlainText("", mCopyAddress)); 2451 mCopyDialog.dismiss(); 2452 } 2453} 2454