RecipientEditTextView.java revision 60d96dccf8f82c31976d29842b85f12dc905cfd1
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.util.Patterns; 58import android.view.ActionMode; 59import android.view.ActionMode.Callback; 60import android.view.DragEvent; 61import android.view.GestureDetector; 62import android.view.KeyEvent; 63import android.view.LayoutInflater; 64import android.view.Menu; 65import android.view.MenuItem; 66import android.view.MotionEvent; 67import android.view.View; 68import android.view.View.OnClickListener; 69import android.view.ViewParent; 70import android.widget.AdapterView; 71import android.widget.AdapterView.OnItemClickListener; 72import android.widget.Button; 73import android.widget.ListAdapter; 74import android.widget.ListPopupWindow; 75import android.widget.ListView; 76import android.widget.MultiAutoCompleteTextView; 77import android.widget.PopupWindow; 78import android.widget.ScrollView; 79import android.widget.TextView; 80 81import java.util.ArrayList; 82import java.util.Arrays; 83import java.util.Collection; 84import java.util.Collections; 85import java.util.Comparator; 86import java.util.HashMap; 87import java.util.HashSet; 88import java.util.Set; 89import java.util.regex.Matcher; 90 91/** 92 * RecipientEditTextView is an auto complete text view for use with applications 93 * that use the new Chips UI for addressing a message to recipients. 94 */ 95public class RecipientEditTextView extends MultiAutoCompleteTextView implements 96 OnItemClickListener, Callback, RecipientAlternatesAdapter.OnCheckedItemChangedListener, 97 GestureDetector.OnGestureListener, OnDismissListener, OnClickListener, 98 PopupWindow.OnDismissListener { 99 100 private static final char COMMIT_CHAR_COMMA = ','; 101 102 private static final char COMMIT_CHAR_SEMICOLON = ';'; 103 104 private static final char COMMIT_CHAR_SPACE = ' '; 105 106 private static final String TAG = "RecipientEditTextView"; 107 108 private static int DISMISS = "dismiss".hashCode(); 109 110 private static final long DISMISS_DELAY = 300; 111 112 // TODO: get correct number/ algorithm from with UX. 113 // Visible for testing. 114 /*package*/ static final int CHIP_LIMIT = 2; 115 116 private static final int MAX_CHIPS_PARSED = 50; 117 118 private static int sSelectedTextColor = -1; 119 120 // Resources for displaying chips. 121 private Drawable mChipBackground = null; 122 123 private Drawable mChipDelete = null; 124 125 private Drawable mInvalidChipBackground; 126 127 private Drawable mChipBackgroundPressed; 128 129 private float mChipHeight; 130 131 private float mChipFontSize; 132 133 private int mChipPadding; 134 135 private Tokenizer mTokenizer; 136 137 private Validator mValidator; 138 139 private RecipientChip mSelectedChip; 140 141 private int mAlternatesLayout; 142 143 private Bitmap mDefaultContactPhoto; 144 145 private ImageSpan mMoreChip; 146 147 private TextView mMoreItem; 148 149 private final ArrayList<String> mPendingChips = new ArrayList<String>(); 150 151 private Handler mHandler; 152 153 private int mPendingChipsCount = 0; 154 155 private boolean mNoChips = false; 156 157 private ListPopupWindow mAlternatesPopup; 158 159 private ListPopupWindow mAddressPopup; 160 161 private ArrayList<RecipientChip> mTemporaryRecipients; 162 163 private ArrayList<RecipientChip> mRemovedSpans; 164 165 private boolean mShouldShrink = true; 166 167 // Chip copy fields. 168 private GestureDetector mGestureDetector; 169 170 private Dialog mCopyDialog; 171 172 private String mCopyAddress; 173 174 /** 175 * Used with {@link #mAlternatesPopup}. Handles clicks to alternate addresses for a 176 * selected chip. 177 */ 178 private OnItemClickListener mAlternatesListener; 179 180 private int mCheckedItem; 181 182 private TextWatcher mTextWatcher; 183 184 // Obtain the enclosing scroll view, if it exists, so that the view can be 185 // scrolled to show the last line of chips content. 186 private ScrollView mScrollView; 187 188 private boolean mTriedGettingScrollView; 189 190 private boolean mDragEnabled = false; 191 192 private final Runnable mAddTextWatcher = new Runnable() { 193 @Override 194 public void run() { 195 if (mTextWatcher == null) { 196 mTextWatcher = new RecipientTextWatcher(); 197 addTextChangedListener(mTextWatcher); 198 } 199 } 200 }; 201 202 private IndividualReplacementTask mIndividualReplacements; 203 204 private Runnable mHandlePendingChips = new Runnable() { 205 206 @Override 207 public void run() { 208 handlePendingChips(); 209 } 210 211 }; 212 213 private Runnable mDelayedShrink = new Runnable() { 214 215 @Override 216 public void run() { 217 shrink(); 218 } 219 220 }; 221 222 public RecipientEditTextView(Context context, AttributeSet attrs) { 223 super(context, attrs); 224 setChipDimensions(context, attrs); 225 if (sSelectedTextColor == -1) { 226 sSelectedTextColor = context.getResources().getColor(android.R.color.white); 227 } 228 mAlternatesPopup = new ListPopupWindow(context); 229 mAlternatesPopup.setOnDismissListener(this); 230 mAddressPopup = new ListPopupWindow(context); 231 mAddressPopup.setOnDismissListener(this); 232 mCopyDialog = new Dialog(context); 233 mAlternatesListener = new OnItemClickListener() { 234 @Override 235 public void onItemClick(AdapterView<?> adapterView,View view, int position, 236 long rowId) { 237 mAlternatesPopup.setOnItemClickListener(null); 238 setEnabled(true); 239 replaceChip(mSelectedChip, ((RecipientAlternatesAdapter) adapterView.getAdapter()) 240 .getRecipientEntry(position)); 241 Message delayed = Message.obtain(mHandler, DISMISS); 242 delayed.obj = mAlternatesPopup; 243 mHandler.sendMessageDelayed(delayed, DISMISS_DELAY); 244 clearComposingText(); 245 } 246 }; 247 setInputType(getInputType() | InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS); 248 setOnItemClickListener(this); 249 setCustomSelectionActionModeCallback(this); 250 mHandler = new Handler() { 251 @Override 252 public void handleMessage(Message msg) { 253 if (msg.what == DISMISS) { 254 ((ListPopupWindow) msg.obj).dismiss(); 255 return; 256 } 257 super.handleMessage(msg); 258 } 259 }; 260 mTextWatcher = new RecipientTextWatcher(); 261 addTextChangedListener(mTextWatcher); 262 mGestureDetector = new GestureDetector(context, this); 263 } 264 265 /*package*/ RecipientChip getLastChip() { 266 RecipientChip last = null; 267 RecipientChip[] chips = getSortedRecipients(); 268 if (chips != null && chips.length > 0) { 269 last = chips[chips.length - 1]; 270 } 271 return last; 272 } 273 274 @Override 275 public void onSelectionChanged(int start, int end) { 276 // When selection changes, see if it is inside the chips area. 277 // If so, move the cursor back after the chips again. 278 RecipientChip last = getLastChip(); 279 if (last != null && start < getSpannable().getSpanEnd(last)) { 280 // Grab the last chip and set the cursor to after it. 281 setSelection(Math.min(getSpannable().getSpanEnd(last) + 1, getText().length())); 282 } 283 super.onSelectionChanged(start, end); 284 } 285 286 @Override 287 public void onRestoreInstanceState(Parcelable state) { 288 if (!TextUtils.isEmpty(getText())) { 289 super.onRestoreInstanceState(null); 290 } else { 291 super.onRestoreInstanceState(state); 292 } 293 } 294 295 @Override 296 public Parcelable onSaveInstanceState() { 297 // If the user changes orientation while they are editing, just roll back the selection. 298 clearSelectedChip(); 299 return super.onSaveInstanceState(); 300 } 301 302 /** 303 * Convenience method: Append the specified text slice to the TextView's 304 * display buffer, upgrading it to BufferType.EDITABLE if it was 305 * not already editable. Commas are excluded as they are added automatically 306 * by the view. 307 */ 308 @Override 309 public void append(CharSequence text, int start, int end) { 310 // We don't care about watching text changes while appending. 311 if (mTextWatcher != null) { 312 removeTextChangedListener(mTextWatcher); 313 } 314 super.append(text, start, end); 315 if (!TextUtils.isEmpty(text) && TextUtils.getTrimmedLength(text) > 0) { 316 final String displayString = (String) text; 317 int seperatorPos = displayString.indexOf(COMMIT_CHAR_COMMA); 318 if (seperatorPos != 0 && !TextUtils.isEmpty(displayString) 319 && TextUtils.getTrimmedLength(displayString) > 0) { 320 mPendingChipsCount++; 321 mPendingChips.add((String)text); 322 } 323 } 324 // Put a message on the queue to make sure we ALWAYS handle pending chips. 325 if (mPendingChipsCount > 0) { 326 postHandlePendingChips(); 327 } 328 mHandler.post(mAddTextWatcher); 329 } 330 331 @Override 332 public void onFocusChanged(boolean hasFocus, int direction, Rect previous) { 333 super.onFocusChanged(hasFocus, direction, previous); 334 if (!hasFocus) { 335 shrink(); 336 } else { 337 expand(); 338 } 339 } 340 341 @Override 342 public void performValidation() { 343 // Do nothing. Chips handles its own validation. 344 } 345 346 private void shrink() { 347 if (mTokenizer == null) { 348 return; 349 } 350 if (mSelectedChip != null 351 && mSelectedChip.getEntry().getContactId() != RecipientEntry.INVALID_CONTACT) { 352 clearSelectedChip(); 353 } else { 354 if (getWidth() <= 0) { 355 // We don't have the width yet which means the view hasn't been drawn yet 356 // and there is no reason to attempt to commit chips yet. 357 // This focus lost must be the result of an orientation change 358 // or an initial rendering. 359 // Re-post the shrink for later. 360 mHandler.removeCallbacks(mDelayedShrink); 361 mHandler.post(mDelayedShrink); 362 return; 363 } 364 // Reset any pending chips as they would have been handled 365 // when the field lost focus. 366 if (mPendingChipsCount > 0) { 367 postHandlePendingChips(); 368 } else { 369 Editable editable = getText(); 370 int end = getSelectionEnd(); 371 int start = mTokenizer.findTokenStart(editable, end); 372 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 373 if ((chips == null || chips.length == 0)) { 374 Editable text = getText(); 375 int whatEnd = mTokenizer.findTokenEnd(text, start); 376 // This token was already tokenized, so skip past the ending token. 377 if (whatEnd < text.length() && text.charAt(whatEnd) == ',') { 378 whatEnd++; 379 } 380 // In the middle of chip; treat this as an edit 381 // and commit the whole token. 382 int selEnd = getSelectionEnd(); 383 if (whatEnd != selEnd) { 384 handleEdit(start, whatEnd); 385 } else { 386 commitChip(start, end, editable); 387 } 388 } 389 } 390 mHandler.post(mAddTextWatcher); 391 } 392 createMoreChip(); 393 } 394 395 private void expand() { 396 removeMoreChip(); 397 setCursorVisible(true); 398 Editable text = getText(); 399 setSelection(text != null && text.length() > 0 ? text.length() : 0); 400 // If there are any temporary chips, try replacing them now that the user 401 // has expanded the field. 402 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0) { 403 new RecipientReplacementTask().execute(); 404 mTemporaryRecipients = null; 405 } 406 } 407 408 private CharSequence ellipsizeText(CharSequence text, TextPaint paint, float maxWidth) { 409 paint.setTextSize(mChipFontSize); 410 if (maxWidth <= 0 && Log.isLoggable(TAG, Log.DEBUG)) { 411 Log.d(TAG, "Max width is negative: " + maxWidth); 412 } 413 return TextUtils.ellipsize(text, paint, maxWidth, 414 TextUtils.TruncateAt.END); 415 } 416 417 private Bitmap createSelectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 418 // Ellipsize the text so that it takes AT MOST the entire width of the 419 // autocomplete text entry area. Make sure to leave space for padding 420 // on the sides. 421 int height = (int) mChipHeight; 422 int deleteWidth = height; 423 float[] widths = new float[1]; 424 paint.getTextWidths(" ", widths); 425 CharSequence ellipsizedText = ellipsizeText(createChipDisplayText(contact), paint, 426 calculateAvailableWidth(true) - deleteWidth - widths[0]); 427 428 // Make sure there is a minimum chip width so the user can ALWAYS 429 // tap a chip without difficulty. 430 int width = Math.max(deleteWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 431 ellipsizedText.length())) 432 + (mChipPadding * 2) + deleteWidth); 433 434 // Create the background of the chip. 435 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 436 Canvas canvas = new Canvas(tmpBitmap); 437 if (mChipBackgroundPressed != null) { 438 mChipBackgroundPressed.setBounds(0, 0, width, height); 439 mChipBackgroundPressed.draw(canvas); 440 paint.setColor(sSelectedTextColor); 441 // Vertically center the text in the chip. 442 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 443 getTextYOffset((String) ellipsizedText, paint, height), paint); 444 // Make the delete a square. 445 Rect backgroundPadding = new Rect(); 446 mChipBackgroundPressed.getPadding(backgroundPadding); 447 mChipDelete.setBounds(width - deleteWidth + backgroundPadding.left, 448 0 + backgroundPadding.top, 449 width - backgroundPadding.right, 450 height - backgroundPadding.bottom); 451 mChipDelete.draw(canvas); 452 } else { 453 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 454 } 455 return tmpBitmap; 456 } 457 458 459 private Bitmap createUnselectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 460 // Ellipsize the text so that it takes AT MOST the entire width of the 461 // autocomplete text entry area. Make sure to leave space for padding 462 // on the sides. 463 int height = (int) mChipHeight; 464 int iconWidth = height; 465 float[] widths = new float[1]; 466 paint.getTextWidths(" ", widths); 467 CharSequence ellipsizedText = ellipsizeText(createChipDisplayText(contact), paint, 468 calculateAvailableWidth(false) - iconWidth - widths[0]); 469 // Make sure there is a minimum chip width so the user can ALWAYS 470 // tap a chip without difficulty. 471 int width = Math.max(iconWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 472 ellipsizedText.length())) 473 + (mChipPadding * 2) + iconWidth); 474 475 // Create the background of the chip. 476 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 477 Canvas canvas = new Canvas(tmpBitmap); 478 Drawable background = getChipBackground(contact); 479 if (background != null) { 480 background.setBounds(0, 0, width, height); 481 background.draw(canvas); 482 483 // Don't draw photos for recipients that have been typed in. 484 if (contact.getContactId() != RecipientEntry.INVALID_CONTACT) { 485 byte[] photoBytes = contact.getPhotoBytes(); 486 // There may not be a photo yet if anything but the first contact address 487 // was selected. 488 if (photoBytes == null && contact.getPhotoThumbnailUri() != null) { 489 // TODO: cache this in the recipient entry? 490 ((BaseRecipientAdapter) getAdapter()).fetchPhoto(contact, contact 491 .getPhotoThumbnailUri()); 492 photoBytes = contact.getPhotoBytes(); 493 } 494 495 Bitmap photo; 496 if (photoBytes != null) { 497 photo = BitmapFactory.decodeByteArray(photoBytes, 0, photoBytes.length); 498 } else { 499 // TODO: can the scaled down default photo be cached? 500 photo = mDefaultContactPhoto; 501 } 502 // Draw the photo on the left side. 503 if (photo != null) { 504 RectF src = new RectF(0, 0, photo.getWidth(), photo.getHeight()); 505 Rect backgroundPadding = new Rect(); 506 mChipBackground.getPadding(backgroundPadding); 507 RectF dst = new RectF(width - iconWidth + backgroundPadding.left, 508 0 + backgroundPadding.top, 509 width - backgroundPadding.right, 510 height - backgroundPadding.bottom); 511 Matrix matrix = new Matrix(); 512 matrix.setRectToRect(src, dst, Matrix.ScaleToFit.FILL); 513 canvas.drawBitmap(photo, matrix, paint); 514 } 515 } else { 516 // Don't leave any space for the icon. It isn't being drawn. 517 iconWidth = 0; 518 } 519 paint.setColor(getContext().getResources().getColor(android.R.color.black)); 520 // Vertically center the text in the chip. 521 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 522 getTextYOffset((String)ellipsizedText, paint, height), paint); 523 } else { 524 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 525 } 526 return tmpBitmap; 527 } 528 529 /** 530 * Get the background drawable for a RecipientChip. 531 */ 532 // Visible for testing. 533 /*package*/ Drawable getChipBackground(RecipientEntry contact) { 534 return (mValidator != null && mValidator.isValid(contact.getDestination())) ? 535 mChipBackground : mInvalidChipBackground; 536 } 537 538 private float getTextYOffset(String text, TextPaint paint, int height) { 539 Rect bounds = new Rect(); 540 paint.getTextBounds(text, 0, text.length(), bounds); 541 int textHeight = bounds.bottom - bounds.top - (int)paint.descent(); 542 return height - ((height - textHeight) / 2); 543 } 544 545 private RecipientChip constructChipSpan(RecipientEntry contact, int offset, boolean pressed) 546 throws NullPointerException { 547 if (mChipBackground == null) { 548 throw new NullPointerException( 549 "Unable to render any chips as setChipDimensions was not called."); 550 } 551 Layout layout = getLayout(); 552 553 TextPaint paint = getPaint(); 554 float defaultSize = paint.getTextSize(); 555 int defaultColor = paint.getColor(); 556 557 Bitmap tmpBitmap; 558 if (pressed) { 559 tmpBitmap = createSelectedChip(contact, paint, layout); 560 561 } else { 562 tmpBitmap = createUnselectedChip(contact, paint, layout); 563 } 564 565 // Pass the full text, un-ellipsized, to the chip. 566 Drawable result = new BitmapDrawable(getResources(), tmpBitmap); 567 result.setBounds(0, 0, tmpBitmap.getWidth(), tmpBitmap.getHeight()); 568 RecipientChip recipientChip = new RecipientChip(result, contact, offset); 569 // Return text to the original size. 570 paint.setTextSize(defaultSize); 571 paint.setColor(defaultColor); 572 return recipientChip; 573 } 574 575 /** 576 * Calculate the bottom of the line the chip will be located on using: 577 * 1) which line the chip appears on 578 * 2) the height of a chip 579 * 3) padding built into the edit text view 580 */ 581 private int calculateOffsetFromBottom(int line) { 582 // Line offsets start at zero. 583 int actualLine = getLineCount() - (line + 1); 584 return -((actualLine * ((int) mChipHeight) + getPaddingBottom()) + getPaddingTop()) 585 + getDropDownVerticalOffset(); 586 } 587 588 /** 589 * Get the max amount of space a chip can take up. The formula takes into 590 * account the width of the EditTextView, any view padding, and padding 591 * that will be added to the chip. 592 */ 593 private float calculateAvailableWidth(boolean pressed) { 594 return getWidth() - getPaddingLeft() - getPaddingRight() - (mChipPadding * 2); 595 } 596 597 598 private void setChipDimensions(Context context, AttributeSet attrs) { 599 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.RecipientEditTextView, 0, 600 0); 601 Resources r = getContext().getResources(); 602 mChipBackground = a.getDrawable(R.styleable.RecipientEditTextView_chipBackground); 603 if (mChipBackground == null) { 604 mChipBackground = r.getDrawable(R.drawable.chip_background); 605 } 606 mChipBackgroundPressed = a 607 .getDrawable(R.styleable.RecipientEditTextView_chipBackgroundPressed); 608 if (mChipBackgroundPressed == null) { 609 mChipBackgroundPressed = r.getDrawable(R.drawable.chip_background_selected); 610 } 611 mChipDelete = a.getDrawable(R.styleable.RecipientEditTextView_chipDelete); 612 if (mChipDelete == null) { 613 mChipDelete = r.getDrawable(R.drawable.chip_delete); 614 } 615 mChipPadding = a.getDimensionPixelSize(R.styleable.RecipientEditTextView_chipPadding, -1); 616 if (mChipPadding == -1) { 617 mChipPadding = (int) r.getDimension(R.dimen.chip_padding); 618 } 619 mAlternatesLayout = a.getResourceId(R.styleable.RecipientEditTextView_chipAlternatesLayout, 620 -1); 621 if (mAlternatesLayout == -1) { 622 mAlternatesLayout = R.layout.chips_alternate_item; 623 } 624 625 mDefaultContactPhoto = BitmapFactory.decodeResource(r, R.drawable.ic_contact_picture); 626 627 mMoreItem = (TextView) LayoutInflater.from(getContext()).inflate(R.layout.more_item, null); 628 629 mChipHeight = a.getDimensionPixelSize(R.styleable.RecipientEditTextView_chipHeight, -1); 630 if (mChipHeight == -1) { 631 mChipHeight = r.getDimension(R.dimen.chip_height); 632 } 633 mChipFontSize = a.getDimensionPixelSize(R.styleable.RecipientEditTextView_chipFontSize, -1); 634 if (mChipFontSize == -1) { 635 mChipFontSize = r.getDimension(R.dimen.chip_text_size); 636 } 637 mInvalidChipBackground = a 638 .getDrawable(R.styleable.RecipientEditTextView_invalidChipBackground); 639 if (mInvalidChipBackground == null) { 640 mInvalidChipBackground = r.getDrawable(R.drawable.chip_background_invalid); 641 } 642 } 643 644 // Visible for testing. 645 /* package */ void setMoreItem(TextView moreItem) { 646 mMoreItem = moreItem; 647 } 648 649 650 // Visible for testing. 651 /* package */ void setChipBackground(Drawable chipBackground) { 652 mChipBackground = chipBackground; 653 } 654 655 // Visible for testing. 656 /* package */ void setChipHeight(int height) { 657 mChipHeight = height; 658 } 659 660 /** 661 * Set whether to shrink the recipients field such that at most 662 * one line of recipients chips are shown when the field loses 663 * focus. By default, the number of displayed recipients will be 664 * limited and a "more" chip will be shown when focus is lost. 665 * @param shrink 666 */ 667 public void setOnFocusListShrinkRecipients(boolean shrink) { 668 mShouldShrink = shrink; 669 } 670 671 @Override 672 public void onSizeChanged(int width, int height, int oldw, int oldh) { 673 super.onSizeChanged(width, height, oldw, oldh); 674 if (width != 0 && height != 0) { 675 if (mPendingChipsCount > 0) { 676 postHandlePendingChips(); 677 } else { 678 checkChipWidths(); 679 } 680 } 681 // Try to find the scroll view parent, if it exists. 682 if (mScrollView == null && !mTriedGettingScrollView) { 683 ViewParent parent = getParent(); 684 while (parent != null && !(parent instanceof ScrollView)) { 685 parent = parent.getParent(); 686 } 687 if (parent != null) { 688 mScrollView = (ScrollView) parent; 689 } 690 mTriedGettingScrollView = true; 691 } 692 } 693 694 private void postHandlePendingChips() { 695 mHandler.removeCallbacks(mHandlePendingChips); 696 mHandler.post(mHandlePendingChips); 697 } 698 699 private void checkChipWidths() { 700 // Check the widths of the associated chips. 701 RecipientChip[] chips = getSortedRecipients(); 702 if (chips != null) { 703 Rect bounds; 704 for (RecipientChip chip : chips) { 705 bounds = chip.getDrawable().getBounds(); 706 if (getWidth() > 0 && bounds.right - bounds.left > getWidth()) { 707 // Need to redraw that chip. 708 replaceChip(chip, chip.getEntry()); 709 } 710 } 711 } 712 } 713 714 // Visible for testing. 715 /*package*/ void handlePendingChips() { 716 if (getViewWidth() <= 0) { 717 // The widget has not been sized yet. 718 // This will be called as a result of onSizeChanged 719 // at a later point. 720 return; 721 } 722 if (mPendingChipsCount <= 0) { 723 return; 724 } 725 726 synchronized (mPendingChips) { 727 Editable editable = getText(); 728 // Tokenize! 729 if (mPendingChipsCount <= MAX_CHIPS_PARSED) { 730 for (int i = 0; i < mPendingChips.size(); i++) { 731 String current = mPendingChips.get(i); 732 int tokenStart = editable.toString().indexOf(current); 733 int tokenEnd = tokenStart + current.length(); 734 if (tokenStart >= 0) { 735 // When we have a valid token, include it with the token 736 // to the left. 737 if (tokenEnd < editable.length() - 2 738 && editable.charAt(tokenEnd) == COMMIT_CHAR_COMMA) { 739 tokenEnd++; 740 } 741 createReplacementChip(tokenStart, tokenEnd, editable); 742 } 743 mPendingChipsCount--; 744 } 745 sanitizeEnd(); 746 } else { 747 mNoChips = true; 748 } 749 750 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0 751 && mTemporaryRecipients.size() <= RecipientAlternatesAdapter.MAX_LOOKUPS) { 752 if (hasFocus() || mTemporaryRecipients.size() < CHIP_LIMIT) { 753 new RecipientReplacementTask().execute(); 754 mTemporaryRecipients = null; 755 } else { 756 // Create the "more" chip 757 mIndividualReplacements = new IndividualReplacementTask(); 758 mIndividualReplacements.execute(new ArrayList<RecipientChip>( 759 mTemporaryRecipients.subList(0, CHIP_LIMIT))); 760 761 createMoreChip(); 762 } 763 } else { 764 // There are too many recipients to look up, so just fall back 765 // to showing addresses for all of them. 766 mTemporaryRecipients = null; 767 createMoreChip(); 768 } 769 mPendingChipsCount = 0; 770 mPendingChips.clear(); 771 } 772 } 773 774 // Visible for testing. 775 /*package*/ int getViewWidth() { 776 return getWidth(); 777 } 778 779 /** 780 * Remove any characters after the last valid chip. 781 */ 782 // Visible for testing. 783 /*package*/ void sanitizeEnd() { 784 // Don't sanitize while we are waiting for pending chips to complete. 785 if (mPendingChipsCount > 0) { 786 return; 787 } 788 // Find the last chip; eliminate any commit characters after it. 789 RecipientChip[] chips = getSortedRecipients(); 790 if (chips != null && chips.length > 0) { 791 int end; 792 ImageSpan lastSpan; 793 mMoreChip = getMoreChip(); 794 if (mMoreChip != null) { 795 lastSpan = mMoreChip; 796 } else { 797 lastSpan = getLastChip(); 798 } 799 end = getSpannable().getSpanEnd(lastSpan); 800 Editable editable = getText(); 801 int length = editable.length(); 802 if (length > end) { 803 // See what characters occur after that and eliminate them. 804 if (Log.isLoggable(TAG, Log.DEBUG)) { 805 Log.d(TAG, "There were extra characters after the last tokenizable entry." 806 + editable); 807 } 808 editable.delete(end + 1, length); 809 } 810 } 811 } 812 813 /** 814 * Create a chip that represents just the email address of a recipient. At some later 815 * point, this chip will be attached to a real contact entry, if one exists. 816 */ 817 private void createReplacementChip(int tokenStart, int tokenEnd, Editable editable) { 818 if (alreadyHasChip(tokenStart, tokenEnd)) { 819 // There is already a chip present at this location. 820 // Don't recreate it. 821 return; 822 } 823 String token = editable.toString().substring(tokenStart, tokenEnd); 824 int commitCharIndex = token.trim().lastIndexOf(COMMIT_CHAR_COMMA); 825 if (commitCharIndex == token.length() - 1) { 826 token = token.substring(0, token.length() - 1); 827 } 828 RecipientEntry entry = createTokenizedEntry(token); 829 if (entry != null) { 830 String destText = createAddressText(entry); 831 // Always leave a blank space at the end of a chip. 832 int textLength = destText.length() - 1; 833 SpannableString chipText = new SpannableString(destText); 834 int end = getSelectionEnd(); 835 int start = mTokenizer != null ? mTokenizer.findTokenStart(getText(), end) : 0; 836 RecipientChip chip = null; 837 try { 838 if (!mNoChips) { 839 chip = constructChipSpan(entry, start, false); 840 chipText.setSpan(chip, 0, textLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 841 } 842 } catch (NullPointerException e) { 843 Log.e(TAG, e.getMessage(), e); 844 } 845 editable.replace(tokenStart, tokenEnd, chipText); 846 // Add this chip to the list of entries "to replace" 847 if (chip != null) { 848 if (mTemporaryRecipients == null) { 849 mTemporaryRecipients = new ArrayList<RecipientChip>(); 850 } 851 chip.setOriginalText(chipText.toString()); 852 mTemporaryRecipients.add(chip); 853 } 854 } 855 } 856 857 private static boolean isPhoneNumber(String number) { 858 // TODO: replace this function with libphonenumber's isPossibleNumber (see 859 // PhoneNumberUtil). One complication is that it requires the sender's region which 860 // comes from the CurrentCountryIso. For now, let's just do this simple match. 861 if (TextUtils.isEmpty(number)) { 862 return false; 863 } 864 865 Matcher match = Patterns.PHONE.matcher(number); 866 return match.matches(); 867 } 868 869 private RecipientEntry createTokenizedEntry(String token) { 870 if (TextUtils.isEmpty(token)) { 871 return null; 872 } 873 if (((BaseRecipientAdapter)getAdapter()).getQueryType() == 874 BaseRecipientAdapter.QUERY_TYPE_PHONE && isPhoneNumber(token)) { 875 return RecipientEntry 876 .constructFakeEntry(token); 877 } 878 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(token); 879 String display = null; 880 if (isValid(token) && tokens != null && tokens.length > 0) { 881 // If we can get a name from tokenizing, then generate an entry from 882 // this. 883 display = tokens[0].getName(); 884 if (!TextUtils.isEmpty(display)) { 885 return RecipientEntry.constructGeneratedEntry(display, token); 886 } else { 887 display = tokens[0].getAddress(); 888 if (!TextUtils.isEmpty(display)) { 889 return RecipientEntry.constructFakeEntry(display); 890 } 891 } 892 } 893 // Unable to validate the token or to create a valid token from it. 894 // Just create a chip the user can edit. 895 String validatedToken = null; 896 if (mValidator != null && !mValidator.isValid(token)) { 897 // Try fixing up the entry using the validator. 898 validatedToken = mValidator.fixText(token).toString(); 899 if (!TextUtils.isEmpty(validatedToken)) { 900 if (validatedToken.contains(token)) { 901 // protect against the case of a validator with a null domain, 902 // which doesn't add a domain to the token 903 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(validatedToken); 904 if (tokenized.length > 0) { 905 validatedToken = tokenized[0].getAddress(); 906 } 907 } else { 908 // We ran into a case where the token was invalid and removed 909 // by the validator. In this case, just use the original token 910 // and let the user sort out the error chip. 911 validatedToken = null; 912 } 913 } 914 } 915 // Otherwise, fallback to just creating an editable email address chip. 916 return RecipientEntry 917 .constructFakeEntry(!TextUtils.isEmpty(validatedToken) ? validatedToken : token); 918 } 919 920 private boolean isValid(String text) { 921 return mValidator == null ? true : mValidator.isValid(text); 922 } 923 924 private String tokenizeAddress(String destination) { 925 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(destination); 926 if (tokens != null && tokens.length > 0) { 927 return tokens[0].getAddress(); 928 } 929 return destination; 930 } 931 932 @Override 933 public void setTokenizer(Tokenizer tokenizer) { 934 mTokenizer = tokenizer; 935 super.setTokenizer(mTokenizer); 936 } 937 938 @Override 939 public void setValidator(Validator validator) { 940 mValidator = validator; 941 super.setValidator(validator); 942 } 943 944 /** 945 * We cannot use the default mechanism for replaceText. Instead, 946 * we override onItemClickListener so we can get all the associated 947 * contact information including display text, address, and id. 948 */ 949 @Override 950 protected void replaceText(CharSequence text) { 951 return; 952 } 953 954 /** 955 * Dismiss any selected chips when the back key is pressed. 956 */ 957 @Override 958 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 959 if (keyCode == KeyEvent.KEYCODE_BACK) { 960 clearSelectedChip(); 961 } 962 return super.onKeyPreIme(keyCode, event); 963 } 964 965 /** 966 * Monitor key presses in this view to see if the user types 967 * any commit keys, which consist of ENTER, TAB, or DPAD_CENTER. 968 * If the user has entered text that has contact matches and types 969 * a commit key, create a chip from the topmost matching contact. 970 * If the user has entered text that has no contact matches and types 971 * a commit key, then create a chip from the text they have entered. 972 */ 973 @Override 974 public boolean onKeyUp(int keyCode, KeyEvent event) { 975 switch (keyCode) { 976 case KeyEvent.KEYCODE_ENTER: 977 case KeyEvent.KEYCODE_DPAD_CENTER: 978 if (event.hasNoModifiers()) { 979 if (commitDefault()) { 980 return true; 981 } 982 if (mSelectedChip != null) { 983 clearSelectedChip(); 984 return true; 985 } else if (focusNext()) { 986 return true; 987 } 988 } 989 break; 990 case KeyEvent.KEYCODE_TAB: 991 if (event.hasNoModifiers()) { 992 if (mSelectedChip != null) { 993 clearSelectedChip(); 994 } else { 995 commitDefault(); 996 } 997 if (focusNext()) { 998 return true; 999 } 1000 } 1001 } 1002 return super.onKeyUp(keyCode, event); 1003 } 1004 1005 private boolean focusNext() { 1006 View next = focusSearch(View.FOCUS_DOWN); 1007 if (next != null) { 1008 next.requestFocus(); 1009 return true; 1010 } 1011 return false; 1012 } 1013 1014 /** 1015 * Create a chip from the default selection. If the popup is showing, the 1016 * default is the first item in the popup suggestions list. Otherwise, it is 1017 * whatever the user had typed in. End represents where the the tokenizer 1018 * should search for a token to turn into a chip. 1019 * @return If a chip was created from a real contact. 1020 */ 1021 private boolean commitDefault() { 1022 // If there is no tokenizer, don't try to commit. 1023 if (mTokenizer == null) { 1024 return false; 1025 } 1026 Editable editable = getText(); 1027 int end = getSelectionEnd(); 1028 int start = mTokenizer.findTokenStart(editable, end); 1029 1030 if (shouldCreateChip(start, end)) { 1031 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 1032 // In the middle of chip; treat this as an edit 1033 // and commit the whole token. 1034 if (whatEnd != getSelectionEnd()) { 1035 handleEdit(start, whatEnd); 1036 return true; 1037 } 1038 return commitChip(start, end , editable); 1039 } 1040 return false; 1041 } 1042 1043 private void commitByCharacter() { 1044 // We can't possibly commit by character if we can't tokenize. 1045 if (mTokenizer == null) { 1046 return; 1047 } 1048 Editable editable = getText(); 1049 int end = getSelectionEnd(); 1050 int start = mTokenizer.findTokenStart(editable, end); 1051 if (shouldCreateChip(start, end)) { 1052 commitChip(start, end, editable); 1053 } 1054 setSelection(getText().length()); 1055 } 1056 1057 private boolean commitChip(int start, int end, Editable editable) { 1058 ListAdapter adapter = getAdapter(); 1059 if (adapter != null && adapter.getCount() > 0 && enoughToFilter() 1060 && end == getSelectionEnd()) { 1061 // choose the first entry. 1062 submitItemAtPosition(0); 1063 dismissDropDown(); 1064 return true; 1065 } else { 1066 int tokenEnd = mTokenizer.findTokenEnd(editable, start); 1067 if (editable.length() > tokenEnd + 1) { 1068 char charAt = editable.charAt(tokenEnd + 1); 1069 if (charAt == COMMIT_CHAR_COMMA || charAt == COMMIT_CHAR_SEMICOLON) { 1070 tokenEnd++; 1071 } 1072 } 1073 String text = editable.toString().substring(start, tokenEnd).trim(); 1074 clearComposingText(); 1075 if (text != null && text.length() > 0 && !text.equals(" ")) { 1076 RecipientEntry entry = createTokenizedEntry(text); 1077 if (entry != null) { 1078 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1079 CharSequence chipText = createChip(entry, false); 1080 if (chipText != null && start > -1 && end > -1) { 1081 editable.replace(start, end, chipText); 1082 } 1083 } 1084 // Only dismiss the dropdown if it is related to the text we 1085 // just committed. 1086 // For paste, it may not be as there are possibly multiple 1087 // tokens being added. 1088 if (end == getSelectionEnd()) { 1089 dismissDropDown(); 1090 } 1091 sanitizeBetween(); 1092 return true; 1093 } 1094 } 1095 return false; 1096 } 1097 1098 // Visible for testing. 1099 /* package */ void sanitizeBetween() { 1100 // Don't sanitize while we are waiting for content to chipify. 1101 if (mPendingChipsCount > 0) { 1102 return; 1103 } 1104 // Find the last chip. 1105 RecipientChip[] recips = getSortedRecipients(); 1106 if (recips != null && recips.length > 0) { 1107 RecipientChip last = recips[recips.length - 1]; 1108 RecipientChip beforeLast = null; 1109 if (recips.length > 1) { 1110 beforeLast = recips[recips.length - 2]; 1111 } 1112 int startLooking = 0; 1113 int end = getSpannable().getSpanStart(last); 1114 if (beforeLast != null) { 1115 startLooking = getSpannable().getSpanEnd(beforeLast); 1116 Editable text = getText(); 1117 if (startLooking == -1 || startLooking > text.length() - 1) { 1118 // There is nothing after this chip. 1119 return; 1120 } 1121 if (text.charAt(startLooking) == ' ') { 1122 startLooking++; 1123 } 1124 } 1125 if (startLooking >= 0 && end >= 0 && startLooking < end) { 1126 getText().delete(startLooking, end); 1127 } 1128 } 1129 } 1130 1131 private boolean shouldCreateChip(int start, int end) { 1132 return !mNoChips && hasFocus() && enoughToFilter() && !alreadyHasChip(start, end); 1133 } 1134 1135 private boolean alreadyHasChip(int start, int end) { 1136 if (mNoChips) { 1137 return true; 1138 } 1139 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 1140 if ((chips == null || chips.length == 0)) { 1141 return false; 1142 } 1143 return true; 1144 } 1145 1146 private void handleEdit(int start, int end) { 1147 if (start == -1 || end == -1) { 1148 // This chip no longer exists in the field. 1149 dismissDropDown(); 1150 return; 1151 } 1152 // This is in the middle of a chip, so select out the whole chip 1153 // and commit it. 1154 Editable editable = getText(); 1155 setSelection(end); 1156 String text = getText().toString().substring(start, end); 1157 if (!TextUtils.isEmpty(text)) { 1158 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 1159 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1160 CharSequence chipText = createChip(entry, false); 1161 int selEnd = getSelectionEnd(); 1162 if (chipText != null && start > -1 && selEnd > -1) { 1163 editable.replace(start, selEnd, chipText); 1164 } 1165 } 1166 dismissDropDown(); 1167 } 1168 1169 /** 1170 * If there is a selected chip, delegate the key events 1171 * to the selected chip. 1172 */ 1173 @Override 1174 public boolean onKeyDown(int keyCode, KeyEvent event) { 1175 if (mSelectedChip != null && keyCode == KeyEvent.KEYCODE_DEL) { 1176 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1177 mAlternatesPopup.dismiss(); 1178 } 1179 removeChip(mSelectedChip); 1180 } 1181 1182 if (keyCode == KeyEvent.KEYCODE_ENTER && event.hasNoModifiers()) { 1183 return true; 1184 } 1185 1186 return super.onKeyDown(keyCode, event); 1187 } 1188 1189 // Visible for testing. 1190 /* package */ Spannable getSpannable() { 1191 return getText(); 1192 } 1193 1194 private int getChipStart(RecipientChip chip) { 1195 return getSpannable().getSpanStart(chip); 1196 } 1197 1198 private int getChipEnd(RecipientChip chip) { 1199 return getSpannable().getSpanEnd(chip); 1200 } 1201 1202 /** 1203 * Instead of filtering on the entire contents of the edit box, 1204 * this subclass method filters on the range from 1205 * {@link Tokenizer#findTokenStart} to {@link #getSelectionEnd} 1206 * if the length of that range meets or exceeds {@link #getThreshold} 1207 * and makes sure that the range is not already a Chip. 1208 */ 1209 @Override 1210 protected void performFiltering(CharSequence text, int keyCode) { 1211 if (enoughToFilter() && !isCompletedToken(text)) { 1212 int end = getSelectionEnd(); 1213 int start = mTokenizer.findTokenStart(text, end); 1214 // If this is a RecipientChip, don't filter 1215 // on its contents. 1216 Spannable span = getSpannable(); 1217 RecipientChip[] chips = span.getSpans(start, end, RecipientChip.class); 1218 if (chips != null && chips.length > 0) { 1219 return; 1220 } 1221 } 1222 super.performFiltering(text, keyCode); 1223 } 1224 1225 // Visible for testing. 1226 /*package*/ boolean isCompletedToken(CharSequence text) { 1227 if (TextUtils.isEmpty(text)) { 1228 return false; 1229 } 1230 // Check to see if this is a completed token before filtering. 1231 int end = text.length(); 1232 int start = mTokenizer.findTokenStart(text, end); 1233 String token = text.toString().substring(start, end).trim(); 1234 if (!TextUtils.isEmpty(token)) { 1235 char atEnd = token.charAt(token.length() - 1); 1236 return atEnd == COMMIT_CHAR_COMMA || atEnd == COMMIT_CHAR_SEMICOLON; 1237 } 1238 return false; 1239 } 1240 1241 private void clearSelectedChip() { 1242 if (mSelectedChip != null) { 1243 unselectChip(mSelectedChip); 1244 mSelectedChip = null; 1245 } 1246 setCursorVisible(true); 1247 } 1248 1249 /** 1250 * Monitor touch events in the RecipientEditTextView. 1251 * If the view does not have focus, any tap on the view 1252 * will just focus the view. If the view has focus, determine 1253 * if the touch target is a recipient chip. If it is and the chip 1254 * is not selected, select it and clear any other selected chips. 1255 * If it isn't, then select that chip. 1256 */ 1257 @Override 1258 public boolean onTouchEvent(MotionEvent event) { 1259 if (!isFocused()) { 1260 // Ignore any chip taps until this view is focused. 1261 return super.onTouchEvent(event); 1262 } 1263 boolean handled = super.onTouchEvent(event); 1264 int action = event.getAction(); 1265 boolean chipWasSelected = false; 1266 if (mSelectedChip == null) { 1267 mGestureDetector.onTouchEvent(event); 1268 } 1269 if (mCopyAddress == null && action == MotionEvent.ACTION_UP) { 1270 float x = event.getX(); 1271 float y = event.getY(); 1272 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 1273 RecipientChip currentChip = findChip(offset); 1274 if (currentChip != null) { 1275 if (action == MotionEvent.ACTION_UP) { 1276 if (mSelectedChip != null && mSelectedChip != currentChip) { 1277 clearSelectedChip(); 1278 mSelectedChip = selectChip(currentChip); 1279 } else if (mSelectedChip == null) { 1280 setSelection(getText().length()); 1281 commitDefault(); 1282 mSelectedChip = selectChip(currentChip); 1283 } else { 1284 onClick(mSelectedChip, offset, x, y); 1285 } 1286 } 1287 chipWasSelected = true; 1288 handled = true; 1289 } else if (mSelectedChip != null 1290 && mSelectedChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1291 chipWasSelected = true; 1292 } 1293 } 1294 if (action == MotionEvent.ACTION_UP && !chipWasSelected) { 1295 clearSelectedChip(); 1296 } 1297 return handled; 1298 } 1299 1300 private void scrollLineIntoView(int line) { 1301 if (mScrollView != null) { 1302 mScrollView.scrollBy(0, calculateOffsetFromBottom(line)); 1303 } 1304 } 1305 1306 private void showAlternates(RecipientChip currentChip, ListPopupWindow alternatesPopup, 1307 int width, Context context) { 1308 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1309 int bottom = calculateOffsetFromBottom(line); 1310 // Align the alternates popup with the left side of the View, 1311 // regardless of the position of the chip tapped. 1312 alternatesPopup.setWidth(width); 1313 setEnabled(false); 1314 alternatesPopup.setAnchorView(this); 1315 alternatesPopup.setVerticalOffset(bottom); 1316 alternatesPopup.setAdapter(createAlternatesAdapter(currentChip)); 1317 alternatesPopup.setOnItemClickListener(mAlternatesListener); 1318 // Clear the checked item. 1319 mCheckedItem = -1; 1320 alternatesPopup.show(); 1321 ListView listView = alternatesPopup.getListView(); 1322 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1323 // Checked item would be -1 if the adapter has not 1324 // loaded the view that should be checked yet. The 1325 // variable will be set correctly when onCheckedItemChanged 1326 // is called in a separate thread. 1327 if (mCheckedItem != -1) { 1328 listView.setItemChecked(mCheckedItem, true); 1329 mCheckedItem = -1; 1330 } 1331 } 1332 1333 // Dismiss listener for alterns and single address popup. 1334 @Override 1335 public void onDismiss() { 1336 setEnabled(true); 1337 } 1338 1339 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 1340 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 1341 mAlternatesLayout, ((BaseRecipientAdapter)getAdapter()).getQueryType(), this); 1342 } 1343 1344 private ListAdapter createSingleAddressAdapter(RecipientChip currentChip) { 1345 return new SingleRecipientArrayAdapter(getContext(), mAlternatesLayout, currentChip 1346 .getEntry()); 1347 } 1348 1349 @Override 1350 public void onCheckedItemChanged(int position) { 1351 ListView listView = mAlternatesPopup.getListView(); 1352 if (listView != null && listView.getCheckedItemCount() == 0) { 1353 listView.setItemChecked(position, true); 1354 } 1355 mCheckedItem = position; 1356 } 1357 1358 // TODO: This algorithm will need a lot of tweaking after more people have used 1359 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 1360 // what comes before the finger. 1361 private int putOffsetInRange(int o) { 1362 int offset = o; 1363 Editable text = getText(); 1364 int length = text.length(); 1365 // Remove whitespace from end to find "real end" 1366 int realLength = length; 1367 for (int i = length - 1; i >= 0; i--) { 1368 if (text.charAt(i) == ' ') { 1369 realLength--; 1370 } else { 1371 break; 1372 } 1373 } 1374 1375 // If the offset is beyond or at the end of the text, 1376 // leave it alone. 1377 if (offset >= realLength) { 1378 return offset; 1379 } 1380 Editable editable = getText(); 1381 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 1382 // Keep walking backward! 1383 offset--; 1384 } 1385 return offset; 1386 } 1387 1388 private int findText(Editable text, int offset) { 1389 if (text.charAt(offset) != ' ') { 1390 return offset; 1391 } 1392 return -1; 1393 } 1394 1395 private RecipientChip findChip(int offset) { 1396 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1397 // Find the chip that contains this offset. 1398 for (int i = 0; i < chips.length; i++) { 1399 RecipientChip chip = chips[i]; 1400 int start = getChipStart(chip); 1401 int end = getChipEnd(chip); 1402 if (offset >= start && offset <= end) { 1403 return chip; 1404 } 1405 } 1406 return null; 1407 } 1408 1409 // Visible for testing. 1410 // Use this method to generate text to add to the list of addresses. 1411 /* package */String createAddressText(RecipientEntry entry) { 1412 String display = entry.getDisplayName(); 1413 String address = entry.getDestination(); 1414 if (TextUtils.isEmpty(display) || TextUtils.equals(display, address)) { 1415 display = null; 1416 } 1417 String trimmedDisplayText; 1418 if (((BaseRecipientAdapter)getAdapter()).getQueryType() == 1419 BaseRecipientAdapter.QUERY_TYPE_PHONE && isPhoneNumber(address)) { 1420 trimmedDisplayText = address.trim(); 1421 } else { 1422 if (address != null) { 1423 // Tokenize out the address in case the address already 1424 // contained the username as well. 1425 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(address); 1426 if (tokenized != null && tokenized.length > 0) { 1427 address = tokenized[0].getAddress(); 1428 } 1429 } 1430 Rfc822Token token = new Rfc822Token(display, address, null); 1431 trimmedDisplayText = token.toString().trim(); 1432 } 1433 int index = trimmedDisplayText.indexOf(","); 1434 return mTokenizer != null && !TextUtils.isEmpty(trimmedDisplayText) 1435 && index < trimmedDisplayText.length() - 1 ? (String) mTokenizer 1436 .terminateToken(trimmedDisplayText) : trimmedDisplayText; 1437 } 1438 1439 // Visible for testing. 1440 // Use this method to generate text to display in a chip. 1441 /*package*/ String createChipDisplayText(RecipientEntry entry) { 1442 String display = entry.getDisplayName(); 1443 String address = entry.getDestination(); 1444 if (TextUtils.isEmpty(display) || TextUtils.equals(display, address)) { 1445 display = null; 1446 } 1447 if (address != null && !(((BaseRecipientAdapter)getAdapter()).getQueryType() == 1448 BaseRecipientAdapter.QUERY_TYPE_PHONE && isPhoneNumber(address))) { 1449 // Tokenize out the address in case the address already 1450 // contained the username as well. 1451 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(address); 1452 if (tokenized != null && tokenized.length > 0) { 1453 address = tokenized[0].getAddress(); 1454 } 1455 } 1456 if (!TextUtils.isEmpty(display)) { 1457 return display; 1458 } else if (!TextUtils.isEmpty(address)){ 1459 return address; 1460 } else { 1461 return new Rfc822Token(display, address, null).toString(); 1462 } 1463 } 1464 1465 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 1466 String displayText = createAddressText(entry); 1467 if (TextUtils.isEmpty(displayText)) { 1468 return null; 1469 } 1470 SpannableString chipText = null; 1471 // Always leave a blank space at the end of a chip. 1472 int end = getSelectionEnd(); 1473 int start = mTokenizer.findTokenStart(getText(), end); 1474 int textLength = displayText.length()-1; 1475 chipText = new SpannableString(displayText); 1476 if (!mNoChips) { 1477 try { 1478 RecipientChip chip = constructChipSpan(entry, start, pressed); 1479 chipText.setSpan(chip, 0, textLength, 1480 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1481 chip.setOriginalText(chipText.toString()); 1482 } catch (NullPointerException e) { 1483 Log.e(TAG, e.getMessage(), e); 1484 return null; 1485 } 1486 } 1487 return chipText; 1488 } 1489 1490 /** 1491 * When an item in the suggestions list has been clicked, create a chip from the 1492 * contact information of the selected item. 1493 */ 1494 @Override 1495 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1496 submitItemAtPosition(position); 1497 } 1498 1499 private void submitItemAtPosition(int position) { 1500 RecipientEntry entry = createValidatedEntry( 1501 (RecipientEntry)getAdapter().getItem(position)); 1502 if (entry == null) { 1503 return; 1504 } 1505 clearComposingText(); 1506 1507 int end = getSelectionEnd(); 1508 int start = mTokenizer.findTokenStart(getText(), end); 1509 1510 Editable editable = getText(); 1511 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1512 CharSequence chip = createChip(entry, false); 1513 if (chip != null && start >= 0 && end >= 0) { 1514 editable.replace(start, end, chip); 1515 } 1516 sanitizeBetween(); 1517 } 1518 1519 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1520 if (item == null) { 1521 return null; 1522 } 1523 final RecipientEntry entry; 1524 // If the display name and the address are the same, or if this is a 1525 // valid contact, but the destination is invalid, then make this a fake 1526 // recipient that is editable. 1527 String destination = item.getDestination(); 1528 if (RecipientEntry.isCreatedRecipient(item.getContactId()) 1529 && (TextUtils.isEmpty(item.getDisplayName()) 1530 || TextUtils.equals(item.getDisplayName(), destination) 1531 || (mValidator != null && !mValidator.isValid(destination)))) { 1532 entry = RecipientEntry.constructFakeEntry(destination); 1533 } else { 1534 entry = item; 1535 } 1536 return entry; 1537 } 1538 1539 /** Returns a collection of contact Id for each chip inside this View. */ 1540 /* package */ Collection<Long> getContactIds() { 1541 final Set<Long> result = new HashSet<Long>(); 1542 RecipientChip[] chips = getSortedRecipients(); 1543 if (chips != null) { 1544 for (RecipientChip chip : chips) { 1545 result.add(chip.getContactId()); 1546 } 1547 } 1548 return result; 1549 } 1550 1551 1552 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1553 /* package */ Collection<Long> getDataIds() { 1554 final Set<Long> result = new HashSet<Long>(); 1555 RecipientChip [] chips = getSortedRecipients(); 1556 if (chips != null) { 1557 for (RecipientChip chip : chips) { 1558 result.add(chip.getDataId()); 1559 } 1560 } 1561 return result; 1562 } 1563 1564 // Visible for testing. 1565 /* package */RecipientChip[] getSortedRecipients() { 1566 RecipientChip[] recips = getSpannable() 1567 .getSpans(0, getText().length(), RecipientChip.class); 1568 ArrayList<RecipientChip> recipientsList = new ArrayList<RecipientChip>(Arrays 1569 .asList(recips)); 1570 final Spannable spannable = getSpannable(); 1571 Collections.sort(recipientsList, new Comparator<RecipientChip>() { 1572 1573 @Override 1574 public int compare(RecipientChip first, RecipientChip second) { 1575 int firstStart = spannable.getSpanStart(first); 1576 int secondStart = spannable.getSpanStart(second); 1577 if (firstStart < secondStart) { 1578 return -1; 1579 } else if (firstStart > secondStart) { 1580 return 1; 1581 } else { 1582 return 0; 1583 } 1584 } 1585 }); 1586 return recipientsList.toArray(new RecipientChip[recipientsList.size()]); 1587 } 1588 1589 @Override 1590 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1591 return false; 1592 } 1593 1594 @Override 1595 public void onDestroyActionMode(ActionMode mode) { 1596 } 1597 1598 @Override 1599 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1600 return false; 1601 } 1602 1603 /** 1604 * No chips are selectable. 1605 */ 1606 @Override 1607 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1608 return false; 1609 } 1610 1611 // Visible for testing. 1612 /* package */ImageSpan getMoreChip() { 1613 MoreImageSpan[] moreSpans = getSpannable().getSpans(0, getText().length(), 1614 MoreImageSpan.class); 1615 return moreSpans != null && moreSpans.length > 0 ? moreSpans[0] : null; 1616 } 1617 1618 private MoreImageSpan createMoreSpan(int count) { 1619 String moreText = String.format(mMoreItem.getText().toString(), count); 1620 TextPaint morePaint = new TextPaint(getPaint()); 1621 morePaint.setTextSize(mMoreItem.getTextSize()); 1622 morePaint.setColor(mMoreItem.getCurrentTextColor()); 1623 int width = (int)morePaint.measureText(moreText) + mMoreItem.getPaddingLeft() 1624 + mMoreItem.getPaddingRight(); 1625 int height = getLineHeight(); 1626 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1627 Canvas canvas = new Canvas(drawable); 1628 int adjustedHeight = height; 1629 Layout layout = getLayout(); 1630 if (layout != null) { 1631 adjustedHeight -= layout.getLineDescent(0); 1632 } 1633 canvas.drawText(moreText, 0, moreText.length(), 0, adjustedHeight, morePaint); 1634 1635 Drawable result = new BitmapDrawable(getResources(), drawable); 1636 result.setBounds(0, 0, width, height); 1637 return new MoreImageSpan(result); 1638 } 1639 1640 // Visible for testing. 1641 /*package*/ void createMoreChipPlainText() { 1642 // Take the first <= CHIP_LIMIT addresses and get to the end of the second one. 1643 Editable text = getText(); 1644 int start = 0; 1645 int end = start; 1646 for (int i = 0; i < CHIP_LIMIT; i++) { 1647 end = movePastTerminators(mTokenizer.findTokenEnd(text, start)); 1648 start = end; // move to the next token and get its end. 1649 } 1650 // Now, count total addresses. 1651 start = 0; 1652 int tokenCount = countTokens(text); 1653 MoreImageSpan moreSpan = createMoreSpan(tokenCount - CHIP_LIMIT); 1654 SpannableString chipText = new SpannableString(text.subSequence(end, text.length())); 1655 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1656 text.replace(end, text.length(), chipText); 1657 mMoreChip = moreSpan; 1658 } 1659 1660 // Visible for testing. 1661 /* package */int countTokens(Editable text) { 1662 int tokenCount = 0; 1663 int start = 0; 1664 while (start < text.length()) { 1665 start = movePastTerminators(mTokenizer.findTokenEnd(text, start)); 1666 tokenCount++; 1667 if (start >= text.length()) { 1668 break; 1669 } 1670 } 1671 return tokenCount; 1672 } 1673 1674 /** 1675 * Create the more chip. The more chip is text that replaces any chips that 1676 * do not fit in the pre-defined available space when the 1677 * RecipientEditTextView loses focus. 1678 */ 1679 // Visible for testing. 1680 /* package */ void createMoreChip() { 1681 if (mNoChips) { 1682 createMoreChipPlainText(); 1683 return; 1684 } 1685 1686 if (!mShouldShrink) { 1687 return; 1688 } 1689 1690 ImageSpan[] tempMore = getSpannable().getSpans(0, getText().length(), MoreImageSpan.class); 1691 if (tempMore.length > 0) { 1692 getSpannable().removeSpan(tempMore[0]); 1693 } 1694 RecipientChip[] recipients = getSortedRecipients(); 1695 1696 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1697 mMoreChip = null; 1698 return; 1699 } 1700 Spannable spannable = getSpannable(); 1701 int numRecipients = recipients.length; 1702 int overage = numRecipients - CHIP_LIMIT; 1703 MoreImageSpan moreSpan = createMoreSpan(overage); 1704 mRemovedSpans = new ArrayList<RecipientChip>(); 1705 int totalReplaceStart = 0; 1706 int totalReplaceEnd = 0; 1707 Editable text = getText(); 1708 for (int i = numRecipients - overage; i < recipients.length; i++) { 1709 mRemovedSpans.add(recipients[i]); 1710 if (i == numRecipients - overage) { 1711 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1712 } 1713 if (i == recipients.length - 1) { 1714 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1715 } 1716 if (mTemporaryRecipients == null || !mTemporaryRecipients.contains(recipients[i])) { 1717 int spanStart = spannable.getSpanStart(recipients[i]); 1718 int spanEnd = spannable.getSpanEnd(recipients[i]); 1719 recipients[i].setOriginalText(text.toString().substring(spanStart, spanEnd)); 1720 } 1721 spannable.removeSpan(recipients[i]); 1722 } 1723 if (totalReplaceEnd < text.length()) { 1724 totalReplaceEnd = text.length(); 1725 } 1726 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1727 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1728 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1729 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1730 text.replace(start, end, chipText); 1731 mMoreChip = moreSpan; 1732 } 1733 1734 /** 1735 * Replace the more chip, if it exists, with all of the recipient chips it had 1736 * replaced when the RecipientEditTextView gains focus. 1737 */ 1738 // Visible for testing. 1739 /*package*/ void removeMoreChip() { 1740 if (mMoreChip != null) { 1741 Spannable span = getSpannable(); 1742 span.removeSpan(mMoreChip); 1743 mMoreChip = null; 1744 // Re-add the spans that were removed. 1745 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1746 // Recreate each removed span. 1747 RecipientChip[] recipients = getSortedRecipients(); 1748 // Start the search for tokens after the last currently visible 1749 // chip. 1750 if (recipients == null || recipients.length == 0) { 1751 return; 1752 } 1753 int end = span.getSpanEnd(recipients[recipients.length - 1]); 1754 Editable editable = getText(); 1755 for (RecipientChip chip : mRemovedSpans) { 1756 int chipStart; 1757 int chipEnd; 1758 String token; 1759 // Need to find the location of the chip, again. 1760 token = (String) chip.getOriginalText(); 1761 // As we find the matching recipient for the remove spans, 1762 // reduce the size of the string we need to search. 1763 // That way, if there are duplicates, we always find the correct 1764 // recipient. 1765 chipStart = editable.toString().indexOf(token, end); 1766 end = chipEnd = Math.min(editable.length(), chipStart + token.length()); 1767 // Only set the span if we found a matching token. 1768 if (chipStart != -1) { 1769 editable.setSpan(chip, chipStart, chipEnd, 1770 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1771 } 1772 } 1773 mRemovedSpans.clear(); 1774 } 1775 } 1776 } 1777 1778 /** 1779 * Show specified chip as selected. If the RecipientChip is just an email address, 1780 * selecting the chip will take the contents of the chip and place it at 1781 * the end of the RecipientEditTextView for inline editing. If the 1782 * RecipientChip is a complete contact, then selecting the chip 1783 * will change the background color of the chip, show the delete icon, 1784 * and a popup window with the address in use highlighted and any other 1785 * alternate addresses for the contact. 1786 * @param currentChip Chip to select. 1787 * @return A RecipientChip in the selected state or null if the chip 1788 * just contained an email address. 1789 */ 1790 private RecipientChip selectChip(RecipientChip currentChip) { 1791 if (currentChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1792 CharSequence text = currentChip.getValue(); 1793 Editable editable = getText(); 1794 removeChip(currentChip); 1795 editable.append(text); 1796 setCursorVisible(true); 1797 setSelection(editable.length()); 1798 return new RecipientChip(null, RecipientEntry.constructFakeEntry((String) text), -1); 1799 } else if (currentChip.getContactId() == RecipientEntry.GENERATED_CONTACT) { 1800 int start = getChipStart(currentChip); 1801 int end = getChipEnd(currentChip); 1802 getSpannable().removeSpan(currentChip); 1803 RecipientChip newChip; 1804 try { 1805 if (mNoChips) { 1806 return null; 1807 } 1808 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1809 } catch (NullPointerException e) { 1810 Log.e(TAG, e.getMessage(), e); 1811 return null; 1812 } 1813 Editable editable = getText(); 1814 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1815 if (start == -1 || end == -1) { 1816 Log.d(TAG, "The chip being selected no longer exists but should."); 1817 } else { 1818 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1819 } 1820 newChip.setSelected(true); 1821 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1822 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1823 } 1824 showAddress(newChip, mAddressPopup, getWidth(), getContext()); 1825 setCursorVisible(false); 1826 return newChip; 1827 } else { 1828 int start = getChipStart(currentChip); 1829 int end = getChipEnd(currentChip); 1830 getSpannable().removeSpan(currentChip); 1831 RecipientChip newChip; 1832 try { 1833 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1834 } catch (NullPointerException e) { 1835 Log.e(TAG, e.getMessage(), e); 1836 return null; 1837 } 1838 Editable editable = getText(); 1839 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1840 if (start == -1 || end == -1) { 1841 Log.d(TAG, "The chip being selected no longer exists but should."); 1842 } else { 1843 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1844 } 1845 newChip.setSelected(true); 1846 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1847 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1848 } 1849 showAlternates(newChip, mAlternatesPopup, getWidth(), getContext()); 1850 setCursorVisible(false); 1851 return newChip; 1852 } 1853 } 1854 1855 1856 private void showAddress(final RecipientChip currentChip, final ListPopupWindow popup, 1857 int width, Context context) { 1858 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1859 int bottom = calculateOffsetFromBottom(line); 1860 // Align the alternates popup with the left side of the View, 1861 // regardless of the position of the chip tapped. 1862 setEnabled(false); 1863 popup.setWidth(width); 1864 popup.setAnchorView(this); 1865 popup.setVerticalOffset(bottom); 1866 popup.setAdapter(createSingleAddressAdapter(currentChip)); 1867 popup.setOnItemClickListener(new OnItemClickListener() { 1868 @Override 1869 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1870 unselectChip(currentChip); 1871 popup.dismiss(); 1872 } 1873 }); 1874 popup.show(); 1875 ListView listView = popup.getListView(); 1876 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1877 listView.setItemChecked(0, true); 1878 } 1879 1880 /** 1881 * Remove selection from this chip. Unselecting a RecipientChip will render 1882 * the chip without a delete icon and with an unfocused background. This is 1883 * called when the RecipientChip no longer has focus. 1884 */ 1885 private void unselectChip(RecipientChip chip) { 1886 int start = getChipStart(chip); 1887 int end = getChipEnd(chip); 1888 Editable editable = getText(); 1889 mSelectedChip = null; 1890 if (start == -1 || end == -1) { 1891 Log.w(TAG, "The chip doesn't exist or may be a chip a user was editing"); 1892 setSelection(editable.length()); 1893 commitDefault(); 1894 } else { 1895 getSpannable().removeSpan(chip); 1896 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1897 editable.removeSpan(chip); 1898 try { 1899 if (!mNoChips) { 1900 editable.setSpan(constructChipSpan(chip.getEntry(), start, false), start, end, 1901 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1902 } 1903 } catch (NullPointerException e) { 1904 Log.e(TAG, e.getMessage(), e); 1905 } 1906 } 1907 setCursorVisible(true); 1908 setSelection(editable.length()); 1909 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1910 mAlternatesPopup.dismiss(); 1911 } 1912 } 1913 1914 /** 1915 * Return whether a touch event was inside the delete target of 1916 * a selected chip. It is in the delete target if: 1917 * 1) the x and y points of the event are within the 1918 * delete assset. 1919 * 2) the point tapped would have caused a cursor to appear 1920 * right after the selected chip. 1921 * @return boolean 1922 */ 1923 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1924 // Figure out the bounds of this chip and whether or not 1925 // the user clicked in the X portion. 1926 return chip.isSelected() && offset == getChipEnd(chip); 1927 } 1928 1929 /** 1930 * Remove the chip and any text associated with it from the RecipientEditTextView. 1931 */ 1932 // Visible for testing. 1933 /*pacakge*/ void removeChip(RecipientChip chip) { 1934 Spannable spannable = getSpannable(); 1935 int spanStart = spannable.getSpanStart(chip); 1936 int spanEnd = spannable.getSpanEnd(chip); 1937 Editable text = getText(); 1938 int toDelete = spanEnd; 1939 boolean wasSelected = chip == mSelectedChip; 1940 // Clear that there is a selected chip before updating any text. 1941 if (wasSelected) { 1942 mSelectedChip = null; 1943 } 1944 // Always remove trailing spaces when removing a chip. 1945 while (toDelete >= 0 && toDelete < text.length() && text.charAt(toDelete) == ' ') { 1946 toDelete++; 1947 } 1948 spannable.removeSpan(chip); 1949 if (spanStart >= 0 && toDelete > 0) { 1950 text.delete(spanStart, toDelete); 1951 } 1952 if (wasSelected) { 1953 clearSelectedChip(); 1954 } 1955 } 1956 1957 /** 1958 * Replace this currently selected chip with a new chip 1959 * that uses the contact data provided. 1960 */ 1961 // Visible for testing. 1962 /*package*/ void replaceChip(RecipientChip chip, RecipientEntry entry) { 1963 boolean wasSelected = chip == mSelectedChip; 1964 if (wasSelected) { 1965 mSelectedChip = null; 1966 } 1967 int start = getChipStart(chip); 1968 int end = getChipEnd(chip); 1969 getSpannable().removeSpan(chip); 1970 Editable editable = getText(); 1971 CharSequence chipText = createChip(entry, false); 1972 if (chipText != null) { 1973 if (start == -1 || end == -1) { 1974 Log.e(TAG, "The chip to replace does not exist but should."); 1975 editable.insert(0, chipText); 1976 } else { 1977 if (!TextUtils.isEmpty(chipText)) { 1978 // There may be a space to replace with this chip's new 1979 // associated 1980 // space. Check for it 1981 int toReplace = end; 1982 while (toReplace >= 0 && toReplace < editable.length() 1983 && editable.charAt(toReplace) == ' ') { 1984 toReplace++; 1985 } 1986 editable.replace(start, toReplace, chipText); 1987 } 1988 } 1989 } 1990 setCursorVisible(true); 1991 if (wasSelected) { 1992 clearSelectedChip(); 1993 } 1994 } 1995 1996 /** 1997 * Handle click events for a chip. When a selected chip receives a click 1998 * event, see if that event was in the delete icon. If so, delete it. 1999 * Otherwise, unselect the chip. 2000 */ 2001 public void onClick(RecipientChip chip, int offset, float x, float y) { 2002 if (chip.isSelected()) { 2003 if (isInDelete(chip, offset, x, y)) { 2004 removeChip(chip); 2005 } else { 2006 clearSelectedChip(); 2007 } 2008 } 2009 } 2010 2011 private boolean chipsPending() { 2012 return mPendingChipsCount > 0 || (mRemovedSpans != null && mRemovedSpans.size() > 0); 2013 } 2014 2015 @Override 2016 public void removeTextChangedListener(TextWatcher watcher) { 2017 mTextWatcher = null; 2018 super.removeTextChangedListener(watcher); 2019 } 2020 2021 private class RecipientTextWatcher implements TextWatcher { 2022 2023 @Override 2024 public void afterTextChanged(Editable s) { 2025 // If the text has been set to null or empty, make sure we remove 2026 // all the spans we applied. 2027 if (TextUtils.isEmpty(s)) { 2028 // Remove all the chips spans. 2029 Spannable spannable = getSpannable(); 2030 RecipientChip[] chips = spannable.getSpans(0, getText().length(), 2031 RecipientChip.class); 2032 for (RecipientChip chip : chips) { 2033 spannable.removeSpan(chip); 2034 } 2035 if (mMoreChip != null) { 2036 spannable.removeSpan(mMoreChip); 2037 } 2038 return; 2039 } 2040 // Get whether there are any recipients pending addition to the 2041 // view. If there are, don't do anything in the text watcher. 2042 if (chipsPending()) { 2043 return; 2044 } 2045 // If the user is editing a chip, don't clear it. 2046 if (mSelectedChip != null 2047 && mSelectedChip.getContactId() != RecipientEntry.INVALID_CONTACT) { 2048 setCursorVisible(true); 2049 setSelection(getText().length()); 2050 clearSelectedChip(); 2051 } 2052 int length = s.length(); 2053 // Make sure there is content there to parse and that it is 2054 // not just the commit character. 2055 if (length > 1) { 2056 char last; 2057 int end = getSelectionEnd() == 0 ? 0 : getSelectionEnd() - 1; 2058 int len = length() - 1; 2059 if (end != len) { 2060 last = s.charAt(end); 2061 } else { 2062 last = s.charAt(len); 2063 } 2064 if (last == COMMIT_CHAR_SEMICOLON || last == COMMIT_CHAR_COMMA) { 2065 commitByCharacter(); 2066 } else if (last == COMMIT_CHAR_SPACE) { 2067 // Check if this is a valid email address. If it is, 2068 // commit it. 2069 String text = getText().toString(); 2070 int tokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 2071 String sub = text.substring(tokenStart, mTokenizer.findTokenEnd(text, 2072 tokenStart)); 2073 if (!TextUtils.isEmpty(sub) && mValidator != null && mValidator.isValid(sub)) { 2074 commitByCharacter(); 2075 } 2076 } 2077 } 2078 } 2079 2080 @Override 2081 public void onTextChanged(CharSequence s, int start, int before, int count) { 2082 // This is a delete; check to see if the insertion point is on a space 2083 // following a chip. 2084 if (before > count) { 2085 // If the item deleted is a space, and the thing before the 2086 // space is a chip, delete the entire span. 2087 int selStart = getSelectionStart(); 2088 RecipientChip[] repl = getSpannable().getSpans(selStart, selStart, 2089 RecipientChip.class); 2090 if (repl.length > 0) { 2091 // There is a chip there! Just remove it. 2092 Editable editable = getText(); 2093 // Add the separator token. 2094 int tokenStart = mTokenizer.findTokenStart(editable, selStart); 2095 int tokenEnd = mTokenizer.findTokenEnd(editable, tokenStart); 2096 tokenEnd = tokenEnd + 1; 2097 if (tokenEnd > editable.length()) { 2098 tokenEnd = editable.length(); 2099 } 2100 editable.delete(tokenStart, tokenEnd); 2101 getSpannable().removeSpan(repl[0]); 2102 } 2103 } 2104 } 2105 2106 @Override 2107 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 2108 // Do nothing. 2109 } 2110 } 2111 2112 /** 2113 * Handles pasting a {@link ClipData} to this {@link RecipientEditTextView}. 2114 */ 2115 private void handlePasteClip(ClipData clip) { 2116 removeTextChangedListener(mTextWatcher); 2117 2118 if (clip != null && clip.getDescription().hasMimeType(ClipDescription.MIMETYPE_TEXT_PLAIN)){ 2119 for (int i = 0; i < clip.getItemCount(); i++) { 2120 CharSequence paste = clip.getItemAt(i).getText(); 2121 if (paste != null) { 2122 int start = getSelectionStart(); 2123 int end = getSelectionEnd(); 2124 Editable editable = getText(); 2125 if (start >= 0 && end >= 0 && start != end) { 2126 editable.append(paste, start, end); 2127 } else { 2128 editable.insert(end, paste); 2129 } 2130 handlePasteAndReplace(); 2131 } 2132 } 2133 } 2134 2135 mHandler.post(mAddTextWatcher); 2136 } 2137 2138 @Override 2139 public boolean onTextContextMenuItem(int id) { 2140 if (id == android.R.id.paste) { 2141 ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService( 2142 Context.CLIPBOARD_SERVICE); 2143 handlePasteClip(clipboard.getPrimaryClip()); 2144 return true; 2145 } 2146 return super.onTextContextMenuItem(id); 2147 } 2148 2149 private void handlePasteAndReplace() { 2150 ArrayList<RecipientChip> created = handlePaste(); 2151 if (created != null && created.size() > 0) { 2152 // Perform reverse lookups on the pasted contacts. 2153 IndividualReplacementTask replace = new IndividualReplacementTask(); 2154 replace.execute(created); 2155 } 2156 } 2157 2158 // Visible for testing. 2159 /* package */ArrayList<RecipientChip> handlePaste() { 2160 String text = getText().toString(); 2161 int originalTokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 2162 String lastAddress = text.substring(originalTokenStart); 2163 int tokenStart = originalTokenStart; 2164 int prevTokenStart = tokenStart; 2165 RecipientChip findChip = null; 2166 ArrayList<RecipientChip> created = new ArrayList<RecipientChip>(); 2167 if (tokenStart != 0) { 2168 // There are things before this! 2169 while (tokenStart != 0 && findChip == null) { 2170 prevTokenStart = tokenStart; 2171 tokenStart = mTokenizer.findTokenStart(text, tokenStart); 2172 findChip = findChip(tokenStart); 2173 } 2174 if (tokenStart != originalTokenStart) { 2175 if (findChip != null) { 2176 tokenStart = prevTokenStart; 2177 } 2178 int tokenEnd; 2179 RecipientChip createdChip; 2180 while (tokenStart < originalTokenStart) { 2181 tokenEnd = movePastTerminators(mTokenizer.findTokenEnd(text, tokenStart)); 2182 commitChip(tokenStart, tokenEnd, getText()); 2183 createdChip = findChip(tokenStart); 2184 // +1 for the space at the end. 2185 tokenStart = getSpannable().getSpanEnd(createdChip) + 1; 2186 created.add(createdChip); 2187 } 2188 } 2189 } 2190 // Take a look at the last token. If the token has been completed with a 2191 // commit character, create a chip. 2192 if (isCompletedToken(lastAddress)) { 2193 Editable editable = getText(); 2194 tokenStart = editable.toString().indexOf(lastAddress, originalTokenStart); 2195 commitChip(tokenStart, editable.length(), editable); 2196 created.add(findChip(tokenStart)); 2197 } 2198 return created; 2199 } 2200 2201 // Visible for testing. 2202 /* package */int movePastTerminators(int tokenEnd) { 2203 if (tokenEnd >= length()) { 2204 return tokenEnd; 2205 } 2206 char atEnd = getText().toString().charAt(tokenEnd); 2207 if (atEnd == COMMIT_CHAR_COMMA || atEnd == COMMIT_CHAR_SEMICOLON) { 2208 tokenEnd++; 2209 } 2210 // This token had not only an end token character, but also a space 2211 // separating it from the next token. 2212 if (tokenEnd < length() && getText().toString().charAt(tokenEnd) == ' ') { 2213 tokenEnd++; 2214 } 2215 return tokenEnd; 2216 } 2217 2218 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 2219 private RecipientChip createFreeChip(RecipientEntry entry) { 2220 try { 2221 if (mNoChips) { 2222 return null; 2223 } 2224 return constructChipSpan(entry, -1, false); 2225 } catch (NullPointerException e) { 2226 Log.e(TAG, e.getMessage(), e); 2227 return null; 2228 } 2229 } 2230 2231 @Override 2232 protected Void doInBackground(Void... params) { 2233 if (mIndividualReplacements != null) { 2234 mIndividualReplacements.cancel(true); 2235 } 2236 // For each chip in the list, look up the matching contact. 2237 // If there is a match, replace that chip with the matching 2238 // chip. 2239 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 2240 RecipientChip[] existingChips = getSortedRecipients(); 2241 for (int i = 0; i < existingChips.length; i++) { 2242 originalRecipients.add(existingChips[i]); 2243 } 2244 if (mRemovedSpans != null) { 2245 originalRecipients.addAll(mRemovedSpans); 2246 } 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 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 2258 for (final RecipientChip temp : originalRecipients) { 2259 RecipientEntry entry = null; 2260 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 2261 && getSpannable().getSpanStart(temp) != -1) { 2262 // Replace this. 2263 entry = createValidatedEntry(entries.get(tokenizeAddress(temp.getEntry() 2264 .getDestination()))); 2265 } 2266 if (entry != null) { 2267 replacements.add(createFreeChip(entry)); 2268 } else { 2269 replacements.add(temp); 2270 } 2271 } 2272 if (replacements != null && replacements.size() > 0) { 2273 mHandler.post(new Runnable() { 2274 @Override 2275 public void run() { 2276 SpannableStringBuilder text = new SpannableStringBuilder(getText() 2277 .toString()); 2278 Editable oldText = getText(); 2279 int start, end; 2280 int i = 0; 2281 for (RecipientChip chip : originalRecipients) { 2282 start = oldText.getSpanStart(chip); 2283 if (start != -1) { 2284 end = oldText.getSpanEnd(chip); 2285 oldText.removeSpan(chip); 2286 // Leave a spot for the space! 2287 RecipientChip replacement = replacements.get(i); 2288 text.setSpan(replacement, start, end, 2289 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 2290 replacement.setOriginalText(text.toString().substring(start, end)); 2291 } 2292 i++; 2293 } 2294 originalRecipients.clear(); 2295 setText(text); 2296 } 2297 }); 2298 } 2299 return null; 2300 } 2301 } 2302 2303 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 2304 @SuppressWarnings("unchecked") 2305 @Override 2306 protected Void doInBackground(Object... params) { 2307 // For each chip in the list, look up the matching contact. 2308 // If there is a match, replace that chip with the matching 2309 // chip. 2310 final ArrayList<RecipientChip> originalRecipients = 2311 (ArrayList<RecipientChip>) params[0]; 2312 String[] addresses = new String[originalRecipients.size()]; 2313 RecipientChip chip; 2314 for (int i = 0; i < originalRecipients.size(); i++) { 2315 chip = originalRecipients.get(i); 2316 if (chip != null) { 2317 addresses[i] = createAddressText(chip.getEntry()); 2318 } 2319 } 2320 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 2321 .getMatchingRecipients(getContext(), addresses); 2322 for (final RecipientChip temp : originalRecipients) { 2323 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 2324 && getSpannable().getSpanStart(temp) != -1) { 2325 // Replace this. 2326 final RecipientEntry entry = createValidatedEntry(entries 2327 .get(tokenizeAddress(temp.getEntry().getDestination()).toLowerCase())); 2328 if (entry != null) { 2329 mHandler.post(new Runnable() { 2330 @Override 2331 public void run() { 2332 replaceChip(temp, entry); 2333 } 2334 }); 2335 } 2336 } 2337 } 2338 return null; 2339 } 2340 } 2341 2342 2343 /** 2344 * MoreImageSpan is a simple class created for tracking the existence of a 2345 * more chip across activity restarts/ 2346 */ 2347 private class MoreImageSpan extends ImageSpan { 2348 public MoreImageSpan(Drawable b) { 2349 super(b); 2350 } 2351 } 2352 2353 @Override 2354 public boolean onDown(MotionEvent e) { 2355 return false; 2356 } 2357 2358 @Override 2359 public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { 2360 // Do nothing. 2361 return false; 2362 } 2363 2364 @Override 2365 public void onLongPress(MotionEvent event) { 2366 if (mSelectedChip != null) { 2367 return; 2368 } 2369 float x = event.getX(); 2370 float y = event.getY(); 2371 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 2372 RecipientChip currentChip = findChip(offset); 2373 if (currentChip != null) { 2374 if (mDragEnabled) { 2375 // Start drag-and-drop for the selected chip. 2376 startDrag(currentChip); 2377 } else { 2378 // Copy the selected chip email address. 2379 showCopyDialog(currentChip.getEntry().getDestination()); 2380 } 2381 } 2382 } 2383 2384 /** 2385 * Enables drag-and-drop for chips. 2386 */ 2387 public void enableDrag() { 2388 mDragEnabled = true; 2389 } 2390 2391 /** 2392 * Starts drag-and-drop for the selected chip. 2393 */ 2394 private void startDrag(RecipientChip currentChip) { 2395 String address = currentChip.getEntry().getDestination(); 2396 ClipData data = ClipData.newPlainText(address, address + COMMIT_CHAR_COMMA); 2397 2398 // Start drag mode. 2399 startDrag(data, new RecipientChipShadow(currentChip), null, 0); 2400 2401 // Remove the current chip, so drag-and-drop will result in a move. 2402 // TODO (phamm): consider readd this chip if it's dropped outside a target. 2403 removeChip(currentChip); 2404 } 2405 2406 /** 2407 * Handles drag event. 2408 */ 2409 @Override 2410 public boolean onDragEvent(DragEvent event) { 2411 switch (event.getAction()) { 2412 case DragEvent.ACTION_DRAG_STARTED: 2413 // Only handle plain text drag and drop. 2414 return event.getClipDescription().hasMimeType(ClipDescription.MIMETYPE_TEXT_PLAIN); 2415 case DragEvent.ACTION_DRAG_ENTERED: 2416 requestFocus(); 2417 return true; 2418 case DragEvent.ACTION_DROP: 2419 handlePasteClip(event.getClipData()); 2420 return true; 2421 } 2422 return false; 2423 } 2424 2425 /** 2426 * Drag shadow for a {@link RecipientChip}. 2427 */ 2428 private final class RecipientChipShadow extends DragShadowBuilder { 2429 private final RecipientChip mChip; 2430 2431 public RecipientChipShadow(RecipientChip chip) { 2432 mChip = chip; 2433 } 2434 2435 @Override 2436 public void onProvideShadowMetrics(Point shadowSize, Point shadowTouchPoint) { 2437 Rect rect = mChip.getDrawable().getBounds(); 2438 shadowSize.set(rect.width(), rect.height()); 2439 shadowTouchPoint.set(rect.centerX(), rect.centerY()); 2440 } 2441 2442 @Override 2443 public void onDrawShadow(Canvas canvas) { 2444 mChip.getDrawable().draw(canvas); 2445 } 2446 } 2447 2448 private void showCopyDialog(final String address) { 2449 mCopyAddress = address; 2450 mCopyDialog.setTitle(address); 2451 mCopyDialog.setContentView(R.layout.copy_chip_dialog_layout); 2452 mCopyDialog.setCancelable(true); 2453 mCopyDialog.setCanceledOnTouchOutside(true); 2454 Button button = (Button)mCopyDialog.findViewById(android.R.id.button1); 2455 button.setOnClickListener(this); 2456 int btnTitleId; 2457 if (((BaseRecipientAdapter)getAdapter()).getQueryType() == 2458 BaseRecipientAdapter.QUERY_TYPE_PHONE) { 2459 btnTitleId = R.string.copy_number; 2460 } else { 2461 btnTitleId = R.string.copy_email; 2462 } 2463 String buttonTitle = getContext().getResources().getString(btnTitleId); 2464 button.setText(buttonTitle); 2465 mCopyDialog.setOnDismissListener(this); 2466 mCopyDialog.show(); 2467 } 2468 2469 @Override 2470 public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) { 2471 // Do nothing. 2472 return false; 2473 } 2474 2475 @Override 2476 public void onShowPress(MotionEvent e) { 2477 // Do nothing. 2478 } 2479 2480 @Override 2481 public boolean onSingleTapUp(MotionEvent e) { 2482 // Do nothing. 2483 return false; 2484 } 2485 2486 @Override 2487 public void onDismiss(DialogInterface dialog) { 2488 mCopyAddress = null; 2489 } 2490 2491 @Override 2492 public void onClick(View v) { 2493 // Copy this to the clipboard. 2494 ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService( 2495 Context.CLIPBOARD_SERVICE); 2496 clipboard.setPrimaryClip(ClipData.newPlainText("", mCopyAddress)); 2497 mCopyDialog.dismiss(); 2498 } 2499} 2500