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 17 package com.android.ex.chips; 18 19 import android.app.Dialog; 20 import android.content.ClipData; 21 import android.content.ClipDescription; 22 import android.content.ClipboardManager; 23 import android.content.Context; 24 import android.content.DialogInterface; 25 import android.content.DialogInterface.OnDismissListener; 26 import android.graphics.Bitmap; 27 import android.graphics.BitmapFactory; 28 import android.graphics.Canvas; 29 import android.graphics.Matrix; 30 import android.graphics.Point; 31 import android.graphics.Rect; 32 import android.graphics.RectF; 33 import android.graphics.drawable.BitmapDrawable; 34 import android.graphics.drawable.Drawable; 35 import android.os.AsyncTask; 36 import android.os.Handler; 37 import android.os.Message; 38 import android.os.Parcelable; 39 import android.text.Editable; 40 import android.text.InputType; 41 import android.text.Layout; 42 import android.text.Spannable; 43 import android.text.SpannableString; 44 import android.text.SpannableStringBuilder; 45 import android.text.Spanned; 46 import android.text.TextPaint; 47 import android.text.TextUtils; 48 import android.text.TextWatcher; 49 import android.text.method.QwertyKeyListener; 50 import android.text.style.ImageSpan; 51 import android.text.util.Rfc822Token; 52 import android.text.util.Rfc822Tokenizer; 53 import android.util.AttributeSet; 54 import android.util.Log; 55 import android.view.ActionMode; 56 import android.view.ActionMode.Callback; 57 import android.view.DragEvent; 58 import android.view.GestureDetector; 59 import android.view.KeyEvent; 60 import android.view.LayoutInflater; 61 import android.view.Menu; 62 import android.view.MenuItem; 63 import android.view.MotionEvent; 64 import android.view.View; 65 import android.view.View.OnClickListener; 66 import android.view.ViewParent; 67 import android.widget.AdapterView; 68 import android.widget.AdapterView.OnItemClickListener; 69 import android.widget.ListAdapter; 70 import android.widget.ListPopupWindow; 71 import android.widget.ListView; 72 import android.widget.MultiAutoCompleteTextView; 73 import android.widget.PopupWindow; 74 import android.widget.ScrollView; 75 import android.widget.TextView; 76 77 import java.util.ArrayList; 78 import java.util.Arrays; 79 import java.util.Collection; 80 import java.util.Collections; 81 import java.util.Comparator; 82 import java.util.HashMap; 83 import java.util.HashSet; 84 import java.util.Set; 85 86 /** 87 * RecipientEditTextView is an auto complete text view for use with applications 88 * that use the new Chips UI for addressing a message to recipients. 89 */ 90 public class RecipientEditTextView extends MultiAutoCompleteTextView implements 91 OnItemClickListener, Callback, RecipientAlternatesAdapter.OnCheckedItemChangedListener, 92 GestureDetector.OnGestureListener, OnDismissListener, OnClickListener, 93 PopupWindow.OnDismissListener { 94 95 private static final char COMMIT_CHAR_COMMA = ','; 96 97 private static final char COMMIT_CHAR_SEMICOLON = ';'; 98 99 private static final char COMMIT_CHAR_SPACE = ' '; 100 101 private static final String TAG = "RecipientEditTextView"; 102 103 private static int DISMISS = "dismiss".hashCode(); 104 105 private static final long DISMISS_DELAY = 300; 106 107 // TODO: get correct number/ algorithm from with UX. 108 // Visible for testing. 109 /*package*/ static final int CHIP_LIMIT = 2; 110 111 private static final int MAX_CHIPS_PARSED = 50; 112 113 private static int sSelectedTextColor = -1; 114 115 // Resources for displaying chips. 116 private Drawable mChipBackground = null; 117 118 private Drawable mChipDelete = null; 119 120 private Drawable mInvalidChipBackground; 121 122 private Drawable mChipBackgroundPressed; 123 124 private float mChipHeight; 125 126 private float mChipFontSize; 127 128 private int mChipPadding; 129 130 private Tokenizer mTokenizer; 131 132 private Validator mValidator; 133 134 private RecipientChip mSelectedChip; 135 136 private int mAlternatesLayout; 137 138 private Bitmap mDefaultContactPhoto; 139 140 private ImageSpan mMoreChip; 141 142 private TextView mMoreItem; 143 144 private final ArrayList<String> mPendingChips = new ArrayList<String>(); 145 146 private Handler mHandler; 147 148 private int mPendingChipsCount = 0; 149 150 private boolean mNoChips = false; 151 152 private ListPopupWindow mAlternatesPopup; 153 154 private ListPopupWindow mAddressPopup; 155 156 private ArrayList<RecipientChip> mTemporaryRecipients; 157 158 private ArrayList<RecipientChip> mRemovedSpans; 159 160 private boolean mShouldShrink = true; 161 162 // Chip copy fields. 163 private GestureDetector mGestureDetector; 164 165 private Dialog mCopyDialog; 166 167 private int mCopyViewRes; 168 169 private String mCopyAddress; 170 171 /** 172 * Used with {@link #mAlternatesPopup}. Handles clicks to alternate addresses for a 173 * selected chip. 174 */ 175 private OnItemClickListener mAlternatesListener; 176 177 private int mCheckedItem; 178 179 private TextWatcher mTextWatcher; 180 181 // Obtain the enclosing scroll view, if it exists, so that the view can be 182 // scrolled to show the last line of chips content. 183 private ScrollView mScrollView; 184 185 private boolean mTriedGettingScrollView; 186 187 private boolean mDragEnabled = false; 188 189 private final Runnable mAddTextWatcher = new Runnable() { 190 @Override 191 public void run() { 192 if (mTextWatcher == null) { 193 mTextWatcher = new RecipientTextWatcher(); 194 addTextChangedListener(mTextWatcher); 195 } 196 } 197 }; 198 199 private IndividualReplacementTask mIndividualReplacements; 200 201 private Runnable mHandlePendingChips = new Runnable() { 202 203 @Override 204 public void run() { 205 handlePendingChips(); 206 } 207 208 }; 209 210 private Runnable mDelayedShrink = new Runnable() { 211 212 @Override 213 public void run() { 214 shrink(); 215 } 216 217 }; 218 219 public RecipientEditTextView(Context context, AttributeSet attrs) { 220 super(context, attrs); 221 if (sSelectedTextColor == -1) { 222 sSelectedTextColor = context.getResources().getColor(android.R.color.white); 223 } 224 mAlternatesPopup = new ListPopupWindow(context); 225 mAlternatesPopup.setOnDismissListener(this); 226 mAddressPopup = new ListPopupWindow(context); 227 mAddressPopup.setOnDismissListener(this); 228 mCopyDialog = new Dialog(context); 229 mAlternatesListener = new OnItemClickListener() { 230 @Override 231 public void onItemClick(AdapterView<?> adapterView,View view, int position, 232 long rowId) { 233 mAlternatesPopup.setOnItemClickListener(null); 234 setEnabled(true); 235 replaceChip(mSelectedChip, ((RecipientAlternatesAdapter) adapterView.getAdapter()) 236 .getRecipientEntry(position)); 237 Message delayed = Message.obtain(mHandler, DISMISS); 238 delayed.obj = mAlternatesPopup; 239 mHandler.sendMessageDelayed(delayed, DISMISS_DELAY); 240 clearComposingText(); 241 } 242 }; 243 setInputType(getInputType() | InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS); 244 setOnItemClickListener(this); 245 setCustomSelectionActionModeCallback(this); 246 mHandler = new Handler() { 247 @Override 248 public void handleMessage(Message msg) { 249 if (msg.what == DISMISS) { 250 ((ListPopupWindow) msg.obj).dismiss(); 251 return; 252 } 253 super.handleMessage(msg); 254 } 255 }; 256 mTextWatcher = new RecipientTextWatcher(); 257 addTextChangedListener(mTextWatcher); 258 mGestureDetector = new GestureDetector(context, this); 259 } 260 261 /*package*/ RecipientChip getLastChip() { 262 RecipientChip last = null; 263 RecipientChip[] chips = getSortedRecipients(); 264 if (chips != null && chips.length > 0) { 265 last = chips[chips.length - 1]; 266 } 267 return last; 268 } 269 270 @Override 271 public void onSelectionChanged(int start, int end) { 272 // When selection changes, see if it is inside the chips area. 273 // If so, move the cursor back after the chips again. 274 RecipientChip last = getLastChip(); 275 if (last != null && start < getSpannable().getSpanEnd(last)) { 276 // Grab the last chip and set the cursor to after it. 277 setSelection(Math.min(getSpannable().getSpanEnd(last) + 1, getText().length())); 278 } 279 super.onSelectionChanged(start, end); 280 } 281 282 @Override 283 public void onRestoreInstanceState(Parcelable state) { 284 if (!TextUtils.isEmpty(getText())) { 285 super.onRestoreInstanceState(null); 286 } else { 287 super.onRestoreInstanceState(state); 288 } 289 } 290 291 @Override 292 public Parcelable onSaveInstanceState() { 293 // If the user changes orientation while they are editing, just roll back the selection. 294 clearSelectedChip(); 295 return super.onSaveInstanceState(); 296 } 297 298 /** 299 * Convenience method: Append the specified text slice to the TextView's 300 * display buffer, upgrading it to BufferType.EDITABLE if it was 301 * not already editable. Commas are excluded as they are added automatically 302 * by the view. 303 */ 304 @Override 305 public void append(CharSequence text, int start, int end) { 306 // We don't care about watching text changes while appending. 307 if (mTextWatcher != null) { 308 removeTextChangedListener(mTextWatcher); 309 } 310 super.append(text, start, end); 311 if (!TextUtils.isEmpty(text) && TextUtils.getTrimmedLength(text) > 0) { 312 final String displayString = (String) text; 313 int seperatorPos = displayString.indexOf(COMMIT_CHAR_COMMA); 314 if (seperatorPos != 0 && !TextUtils.isEmpty(displayString) 315 && TextUtils.getTrimmedLength(displayString) > 0) { 316 mPendingChipsCount++; 317 mPendingChips.add((String)text); 318 } 319 } 320 // Put a message on the queue to make sure we ALWAYS handle pending chips. 321 if (mPendingChipsCount > 0) { 322 postHandlePendingChips(); 323 } 324 mHandler.post(mAddTextWatcher); 325 } 326 327 @Override 328 public void onFocusChanged(boolean hasFocus, int direction, Rect previous) { 329 super.onFocusChanged(hasFocus, direction, previous); 330 if (!hasFocus) { 331 shrink(); 332 } else { 333 expand(); 334 } 335 } 336 337 @Override 338 public void performValidation() { 339 // Do nothing. Chips handles its own validation. 340 } 341 342 private void shrink() { 343 if (mSelectedChip != null 344 && mSelectedChip.getEntry().getContactId() != RecipientEntry.INVALID_CONTACT) { 345 clearSelectedChip(); 346 } else { 347 if (getWidth() <= 0) { 348 // We don't have the width yet which means the view hasn't been drawn yet 349 // and there is no reason to attempt to commit chips yet. 350 // This focus lost must be the result of an orientation change 351 // or an initial rendering. 352 // Re-post the shrink for later. 353 mHandler.removeCallbacks(mDelayedShrink); 354 mHandler.post(mDelayedShrink); 355 return; 356 } 357 // Reset any pending chips as they would have been handled 358 // when the field lost focus. 359 if (mPendingChipsCount > 0) { 360 postHandlePendingChips(); 361 } else { 362 Editable editable = getText(); 363 int end = getSelectionEnd(); 364 int start = mTokenizer.findTokenStart(editable, end); 365 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 366 if ((chips == null || chips.length == 0)) { 367 Editable text = getText(); 368 int whatEnd = mTokenizer.findTokenEnd(text, start); 369 // This token was already tokenized, so skip past the ending token. 370 if (whatEnd < text.length() && text.charAt(whatEnd) == ',') { 371 whatEnd++; 372 } 373 // In the middle of chip; treat this as an edit 374 // and commit the whole token. 375 int selEnd = getSelectionEnd(); 376 if (whatEnd != selEnd) { 377 handleEdit(start, whatEnd); 378 } else { 379 commitChip(start, end, editable); 380 } 381 } 382 } 383 mHandler.post(mAddTextWatcher); 384 } 385 createMoreChip(); 386 } 387 388 private void expand() { 389 removeMoreChip(); 390 setCursorVisible(true); 391 Editable text = getText(); 392 setSelection(text != null && text.length() > 0 ? text.length() : 0); 393 // If there are any temporary chips, try replacing them now that the user 394 // has expanded the field. 395 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0) { 396 new RecipientReplacementTask().execute(); 397 mTemporaryRecipients = null; 398 } 399 } 400 401 private CharSequence ellipsizeText(CharSequence text, TextPaint paint, float maxWidth) { 402 paint.setTextSize(mChipFontSize); 403 if (maxWidth <= 0 && Log.isLoggable(TAG, Log.DEBUG)) { 404 Log.d(TAG, "Max width is negative: " + maxWidth); 405 } 406 return TextUtils.ellipsize(text, paint, maxWidth, 407 TextUtils.TruncateAt.END); 408 } 409 410 private Bitmap createSelectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 411 // Ellipsize the text so that it takes AT MOST the entire width of the 412 // autocomplete text entry area. Make sure to leave space for padding 413 // on the sides. 414 int height = (int) mChipHeight; 415 int deleteWidth = height; 416 float[] widths = new float[1]; 417 paint.getTextWidths(" ", widths); 418 CharSequence ellipsizedText = ellipsizeText(createChipDisplayText(contact), paint, 419 calculateAvailableWidth(true) - deleteWidth - widths[0]); 420 421 // Make sure there is a minimum chip width so the user can ALWAYS 422 // tap a chip without difficulty. 423 int width = Math.max(deleteWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 424 ellipsizedText.length())) 425 + (mChipPadding * 2) + deleteWidth); 426 427 // Create the background of the chip. 428 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 429 Canvas canvas = new Canvas(tmpBitmap); 430 if (mChipBackgroundPressed != null) { 431 mChipBackgroundPressed.setBounds(0, 0, width, height); 432 mChipBackgroundPressed.draw(canvas); 433 paint.setColor(sSelectedTextColor); 434 // Vertically center the text in the chip. 435 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 436 getTextYOffset((String) ellipsizedText, paint, height), paint); 437 // Make the delete a square. 438 Rect backgroundPadding = new Rect(); 439 mChipBackgroundPressed.getPadding(backgroundPadding); 440 mChipDelete.setBounds(width - deleteWidth + backgroundPadding.left, 441 0 + backgroundPadding.top, 442 width - backgroundPadding.right, 443 height - backgroundPadding.bottom); 444 mChipDelete.draw(canvas); 445 } else { 446 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 447 } 448 return tmpBitmap; 449 } 450 451 452 private Bitmap createUnselectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 453 // Ellipsize the text so that it takes AT MOST the entire width of the 454 // autocomplete text entry area. Make sure to leave space for padding 455 // on the sides. 456 int height = (int) mChipHeight; 457 int iconWidth = height; 458 float[] widths = new float[1]; 459 paint.getTextWidths(" ", widths); 460 CharSequence ellipsizedText = ellipsizeText(createChipDisplayText(contact), paint, 461 calculateAvailableWidth(false) - iconWidth - widths[0]); 462 // Make sure there is a minimum chip width so the user can ALWAYS 463 // tap a chip without difficulty. 464 int width = Math.max(iconWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 465 ellipsizedText.length())) 466 + (mChipPadding * 2) + iconWidth); 467 468 // Create the background of the chip. 469 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 470 Canvas canvas = new Canvas(tmpBitmap); 471 Drawable background = getChipBackground(contact); 472 if (background != null) { 473 background.setBounds(0, 0, width, height); 474 background.draw(canvas); 475 476 // Don't draw photos for recipients that have been typed in. 477 if (contact.getContactId() != RecipientEntry.INVALID_CONTACT) { 478 byte[] photoBytes = contact.getPhotoBytes(); 479 // There may not be a photo yet if anything but the first contact address 480 // was selected. 481 if (photoBytes == null && contact.getPhotoThumbnailUri() != null) { 482 // TODO: cache this in the recipient entry? 483 ((BaseRecipientAdapter) getAdapter()).fetchPhoto(contact, contact 484 .getPhotoThumbnailUri()); 485 photoBytes = contact.getPhotoBytes(); 486 } 487 488 Bitmap photo; 489 if (photoBytes != null) { 490 photo = BitmapFactory.decodeByteArray(photoBytes, 0, photoBytes.length); 491 } else { 492 // TODO: can the scaled down default photo be cached? 493 photo = mDefaultContactPhoto; 494 } 495 // Draw the photo on the left side. 496 if (photo != null) { 497 RectF src = new RectF(0, 0, photo.getWidth(), photo.getHeight()); 498 Rect backgroundPadding = new Rect(); 499 mChipBackground.getPadding(backgroundPadding); 500 RectF dst = new RectF(width - iconWidth + backgroundPadding.left, 501 0 + backgroundPadding.top, 502 width - backgroundPadding.right, 503 height - backgroundPadding.bottom); 504 Matrix matrix = new Matrix(); 505 matrix.setRectToRect(src, dst, Matrix.ScaleToFit.FILL); 506 canvas.drawBitmap(photo, matrix, paint); 507 } 508 } else { 509 // Don't leave any space for the icon. It isn't being drawn. 510 iconWidth = 0; 511 } 512 paint.setColor(getContext().getResources().getColor(android.R.color.black)); 513 // Vertically center the text in the chip. 514 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 515 getTextYOffset((String)ellipsizedText, paint, height), paint); 516 } else { 517 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 518 } 519 return tmpBitmap; 520 } 521 522 /** 523 * Get the background drawable for a RecipientChip. 524 */ 525 // Visible for testing. 526 /*package*/ Drawable getChipBackground(RecipientEntry contact) { 527 return (mValidator != null && mValidator.isValid(contact.getDestination())) ? 528 mChipBackground : mInvalidChipBackground; 529 } 530 531 private float getTextYOffset(String text, TextPaint paint, int height) { 532 Rect bounds = new Rect(); 533 paint.getTextBounds(text, 0, text.length(), bounds); 534 int textHeight = bounds.bottom - bounds.top - (int)paint.descent(); 535 return height - ((height - textHeight) / 2); 536 } 537 538 private RecipientChip constructChipSpan(RecipientEntry contact, int offset, boolean pressed) 539 throws NullPointerException { 540 if (mChipBackground == null) { 541 throw new NullPointerException( 542 "Unable to render any chips as setChipDimensions was not called."); 543 } 544 Layout layout = getLayout(); 545 546 TextPaint paint = getPaint(); 547 float defaultSize = paint.getTextSize(); 548 int defaultColor = paint.getColor(); 549 550 Bitmap tmpBitmap; 551 if (pressed) { 552 tmpBitmap = createSelectedChip(contact, paint, layout); 553 554 } else { 555 tmpBitmap = createUnselectedChip(contact, paint, layout); 556 } 557 558 // Pass the full text, un-ellipsized, to the chip. 559 Drawable result = new BitmapDrawable(getResources(), tmpBitmap); 560 result.setBounds(0, 0, tmpBitmap.getWidth(), tmpBitmap.getHeight()); 561 RecipientChip recipientChip = new RecipientChip(result, contact, offset); 562 // Return text to the original size. 563 paint.setTextSize(defaultSize); 564 paint.setColor(defaultColor); 565 return recipientChip; 566 } 567 568 /** 569 * Calculate the bottom of the line the chip will be located on using: 570 * 1) which line the chip appears on 571 * 2) the height of a chip 572 * 3) padding built into the edit text view 573 */ 574 private int calculateOffsetFromBottom(int line) { 575 // Line offsets start at zero. 576 int actualLine = getLineCount() - (line + 1); 577 return -((actualLine * ((int) mChipHeight) + getPaddingBottom()) + getPaddingTop()) 578 + getDropDownVerticalOffset(); 579 } 580 581 /** 582 * Get the max amount of space a chip can take up. The formula takes into 583 * account the width of the EditTextView, any view padding, and padding 584 * that will be added to the chip. 585 */ 586 private float calculateAvailableWidth(boolean pressed) { 587 return getWidth() - getPaddingLeft() - getPaddingRight() - (mChipPadding * 2); 588 } 589 590 /** 591 * Set all chip dimensions and resources. This has to be done from the 592 * application as this is a static library. 593 * @param chipBackground 594 * @param chipBackgroundPressed 595 * @param invalidChip 596 * @param chipDelete 597 * @param defaultContact 598 * @param moreResource 599 * @param alternatesLayout 600 * @param chipHeight 601 * @param padding Padding around the text in a chip 602 * @param chipFontSize 603 * @param copyViewRes 604 */ 605 public void setChipDimensions(Drawable chipBackground, Drawable chipBackgroundPressed, 606 Drawable invalidChip, Drawable chipDelete, Bitmap defaultContact, int moreResource, 607 int alternatesLayout, float chipHeight, float padding, 608 float chipFontSize, int copyViewRes) { 609 mChipBackground = chipBackground; 610 mChipBackgroundPressed = chipBackgroundPressed; 611 mChipDelete = chipDelete; 612 mChipPadding = (int) padding; 613 mAlternatesLayout = alternatesLayout; 614 mDefaultContactPhoto = defaultContact; 615 mMoreItem = (TextView) LayoutInflater.from(getContext()).inflate(moreResource, null); 616 mChipHeight = chipHeight; 617 mChipFontSize = chipFontSize; 618 mInvalidChipBackground = invalidChip; 619 mCopyViewRes = copyViewRes; 620 } 621 622 // Visible for testing. 623 /* package */ void setMoreItem(TextView moreItem) { 624 mMoreItem = moreItem; 625 } 626 627 628 // Visible for testing. 629 /* package */ void setChipBackground(Drawable chipBackground) { 630 mChipBackground = chipBackground; 631 } 632 633 // Visible for testing. 634 /* package */ void setChipHeight(int height) { 635 mChipHeight = height; 636 } 637 638 /** 639 * Set whether to shrink the recipients field such that at most 640 * one line of recipients chips are shown when the field loses 641 * focus. By default, the number of displayed recipients will be 642 * limited and a "more" chip will be shown when focus is lost. 643 * @param shrink 644 */ 645 public void setOnFocusListShrinkRecipients(boolean shrink) { 646 mShouldShrink = shrink; 647 } 648 649 @Override 650 public void onSizeChanged(int width, int height, int oldw, int oldh) { 651 super.onSizeChanged(width, height, oldw, oldh); 652 if (width != 0 && height != 0) { 653 if (mPendingChipsCount > 0) { 654 postHandlePendingChips(); 655 } else { 656 checkChipWidths(); 657 } 658 } 659 // Try to find the scroll view parent, if it exists. 660 if (mScrollView == null && !mTriedGettingScrollView) { 661 ViewParent parent = getParent(); 662 while (parent != null && !(parent instanceof ScrollView)) { 663 parent = parent.getParent(); 664 } 665 if (parent != null) { 666 mScrollView = (ScrollView) parent; 667 } 668 mTriedGettingScrollView = true; 669 } 670 } 671 672 private void postHandlePendingChips() { 673 mHandler.removeCallbacks(mHandlePendingChips); 674 mHandler.post(mHandlePendingChips); 675 } 676 677 private void checkChipWidths() { 678 // Check the widths of the associated chips. 679 RecipientChip[] chips = getSortedRecipients(); 680 if (chips != null) { 681 Rect bounds; 682 for (RecipientChip chip : chips) { 683 bounds = chip.getDrawable().getBounds(); 684 if (getWidth() > 0 && bounds.right - bounds.left > getWidth()) { 685 // Need to redraw that chip. 686 replaceChip(chip, chip.getEntry()); 687 } 688 } 689 } 690 } 691 692 // Visible for testing. 693 /*package*/ void handlePendingChips() { 694 if (getViewWidth() <= 0) { 695 // The widget has not been sized yet. 696 // This will be called as a result of onSizeChanged 697 // at a later point. 698 return; 699 } 700 if (mPendingChipsCount <= 0) { 701 return; 702 } 703 704 synchronized (mPendingChips) { 705 Editable editable = getText(); 706 // Tokenize! 707 if (mPendingChipsCount <= MAX_CHIPS_PARSED) { 708 for (int i = 0; i < mPendingChips.size(); i++) { 709 String current = mPendingChips.get(i); 710 int tokenStart = editable.toString().indexOf(current); 711 int tokenEnd = tokenStart + current.length(); 712 if (tokenStart >= 0) { 713 // When we have a valid token, include it with the token 714 // to the left. 715 if (tokenEnd < editable.length() - 2 716 && editable.charAt(tokenEnd) == COMMIT_CHAR_COMMA) { 717 tokenEnd++; 718 } 719 createReplacementChip(tokenStart, tokenEnd, editable); 720 } 721 mPendingChipsCount--; 722 } 723 sanitizeEnd(); 724 } else { 725 mNoChips = true; 726 } 727 728 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0 729 && mTemporaryRecipients.size() <= RecipientAlternatesAdapter.MAX_LOOKUPS) { 730 if (hasFocus() || mTemporaryRecipients.size() < CHIP_LIMIT) { 731 new RecipientReplacementTask().execute(); 732 mTemporaryRecipients = null; 733 } else { 734 // Create the "more" chip 735 mIndividualReplacements = new IndividualReplacementTask(); 736 mIndividualReplacements.execute(new ArrayList<RecipientChip>( 737 mTemporaryRecipients.subList(0, CHIP_LIMIT))); 738 739 createMoreChip(); 740 } 741 } else { 742 // There are too many recipients to look up, so just fall back 743 // to showing addresses for all of them. 744 mTemporaryRecipients = null; 745 createMoreChip(); 746 } 747 mPendingChipsCount = 0; 748 mPendingChips.clear(); 749 } 750 } 751 752 // Visible for testing. 753 /*package*/ int getViewWidth() { 754 return getWidth(); 755 } 756 757 /** 758 * Remove any characters after the last valid chip. 759 */ 760 // Visible for testing. 761 /*package*/ void sanitizeEnd() { 762 // Don't sanitize while we are waiting for pending chips to complete. 763 if (mPendingChipsCount > 0) { 764 return; 765 } 766 // Find the last chip; eliminate any commit characters after it. 767 RecipientChip[] chips = getSortedRecipients(); 768 if (chips != null && chips.length > 0) { 769 int end; 770 ImageSpan lastSpan; 771 mMoreChip = getMoreChip(); 772 if (mMoreChip != null) { 773 lastSpan = mMoreChip; 774 } else { 775 lastSpan = getLastChip(); 776 } 777 end = getSpannable().getSpanEnd(lastSpan); 778 Editable editable = getText(); 779 int length = editable.length(); 780 if (length > end) { 781 // See what characters occur after that and eliminate them. 782 if (Log.isLoggable(TAG, Log.DEBUG)) { 783 Log.d(TAG, "There were extra characters after the last tokenizable entry." 784 + editable); 785 } 786 editable.delete(end + 1, length); 787 } 788 } 789 } 790 791 /** 792 * Create a chip that represents just the email address of a recipient. At some later 793 * point, this chip will be attached to a real contact entry, if one exists. 794 */ 795 private void createReplacementChip(int tokenStart, int tokenEnd, Editable editable) { 796 if (alreadyHasChip(tokenStart, tokenEnd)) { 797 // There is already a chip present at this location. 798 // Don't recreate it. 799 return; 800 } 801 String token = editable.toString().substring(tokenStart, tokenEnd); 802 int commitCharIndex = token.trim().lastIndexOf(COMMIT_CHAR_COMMA); 803 if (commitCharIndex == token.length() - 1) { 804 token = token.substring(0, token.length() - 1); 805 } 806 RecipientEntry entry = createTokenizedEntry(token); 807 if (entry != null) { 808 String destText = createAddressText(entry); 809 // Always leave a blank space at the end of a chip. 810 int textLength = destText.length() - 1; 811 SpannableString chipText = new SpannableString(destText); 812 int end = getSelectionEnd(); 813 int start = mTokenizer.findTokenStart(getText(), end); 814 RecipientChip chip = null; 815 try { 816 if (!mNoChips) { 817 chip = constructChipSpan(entry, start, false); 818 chipText.setSpan(chip, 0, textLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 819 } 820 } catch (NullPointerException e) { 821 Log.e(TAG, e.getMessage(), e); 822 } 823 editable.replace(tokenStart, tokenEnd, chipText); 824 // Add this chip to the list of entries "to replace" 825 if (chip != null) { 826 if (mTemporaryRecipients == null) { 827 mTemporaryRecipients = new ArrayList<RecipientChip>(); 828 } 829 chip.setOriginalText(chipText.toString()); 830 mTemporaryRecipients.add(chip); 831 } 832 } 833 } 834 835 private RecipientEntry createTokenizedEntry(String token) { 836 if (TextUtils.isEmpty(token)) { 837 return null; 838 } 839 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(token); 840 String display = null; 841 if (isValid(token) && tokens != null && tokens.length > 0) { 842 // If we can get a name from tokenizing, then generate an entry from 843 // this. 844 display = tokens[0].getName(); 845 if (!TextUtils.isEmpty(display)) { 846 return RecipientEntry.constructGeneratedEntry(display, token); 847 } else { 848 display = tokens[0].getAddress(); 849 if (!TextUtils.isEmpty(display)) { 850 return RecipientEntry.constructFakeEntry(display); 851 } 852 } 853 } 854 // Unable to validate the token or to create a valid token from it. 855 // Just create a chip the user can edit. 856 String validatedToken = null; 857 if (mValidator != null && !mValidator.isValid(token)) { 858 // Try fixing up the entry using the validator. 859 validatedToken = mValidator.fixText(token).toString(); 860 if (!TextUtils.isEmpty(validatedToken)) { 861 if (validatedToken.contains(token)) { 862 // protect against the case of a validator with a null domain, 863 // which doesn't add a domain to the token 864 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(validatedToken); 865 if (tokenized.length > 0) { 866 validatedToken = tokenized[0].getAddress(); 867 } 868 } else { 869 // We ran into a case where the token was invalid and removed 870 // by the validator. In this case, just use the original token 871 // and let the user sort out the error chip. 872 validatedToken = null; 873 } 874 } 875 } 876 // Otherwise, fallback to just creating an editable email address chip. 877 return RecipientEntry 878 .constructFakeEntry(!TextUtils.isEmpty(validatedToken) ? validatedToken : token); 879 } 880 881 private boolean isValid(String text) { 882 return mValidator == null ? true : mValidator.isValid(text); 883 } 884 885 private String tokenizeAddress(String destination) { 886 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(destination); 887 if (tokens != null && tokens.length > 0) { 888 return tokens[0].getAddress(); 889 } 890 return destination; 891 } 892 893 @Override 894 public void setTokenizer(Tokenizer tokenizer) { 895 mTokenizer = tokenizer; 896 super.setTokenizer(mTokenizer); 897 } 898 899 @Override 900 public void setValidator(Validator validator) { 901 mValidator = validator; 902 super.setValidator(validator); 903 } 904 905 /** 906 * We cannot use the default mechanism for replaceText. Instead, 907 * we override onItemClickListener so we can get all the associated 908 * contact information including display text, address, and id. 909 */ 910 @Override 911 protected void replaceText(CharSequence text) { 912 return; 913 } 914 915 /** 916 * Dismiss any selected chips when the back key is pressed. 917 */ 918 @Override 919 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 920 if (keyCode == KeyEvent.KEYCODE_BACK) { 921 clearSelectedChip(); 922 } 923 return super.onKeyPreIme(keyCode, event); 924 } 925 926 /** 927 * Monitor key presses in this view to see if the user types 928 * any commit keys, which consist of ENTER, TAB, or DPAD_CENTER. 929 * If the user has entered text that has contact matches and types 930 * a commit key, create a chip from the topmost matching contact. 931 * If the user has entered text that has no contact matches and types 932 * a commit key, then create a chip from the text they have entered. 933 */ 934 @Override 935 public boolean onKeyUp(int keyCode, KeyEvent event) { 936 switch (keyCode) { 937 case KeyEvent.KEYCODE_ENTER: 938 case KeyEvent.KEYCODE_DPAD_CENTER: 939 if (event.hasNoModifiers()) { 940 if (commitDefault()) { 941 return true; 942 } 943 if (mSelectedChip != null) { 944 clearSelectedChip(); 945 return true; 946 } else if (focusNext()) { 947 return true; 948 } 949 } 950 break; 951 case KeyEvent.KEYCODE_TAB: 952 if (event.hasNoModifiers()) { 953 if (mSelectedChip != null) { 954 clearSelectedChip(); 955 } else { 956 commitDefault(); 957 } 958 if (focusNext()) { 959 return true; 960 } 961 } 962 } 963 return super.onKeyUp(keyCode, event); 964 } 965 966 private boolean focusNext() { 967 View next = focusSearch(View.FOCUS_DOWN); 968 if (next != null) { 969 next.requestFocus(); 970 return true; 971 } 972 return false; 973 } 974 975 /** 976 * Create a chip from the default selection. If the popup is showing, the 977 * default is the first item in the popup suggestions list. Otherwise, it is 978 * whatever the user had typed in. End represents where the the tokenizer 979 * should search for a token to turn into a chip. 980 * @return If a chip was created from a real contact. 981 */ 982 private boolean commitDefault() { 983 Editable editable = getText(); 984 int end = getSelectionEnd(); 985 int start = mTokenizer.findTokenStart(editable, end); 986 987 if (shouldCreateChip(start, end)) { 988 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 989 // In the middle of chip; treat this as an edit 990 // and commit the whole token. 991 if (whatEnd != getSelectionEnd()) { 992 handleEdit(start, whatEnd); 993 return true; 994 } 995 return commitChip(start, end , editable); 996 } 997 return false; 998 } 999 1000 private void commitByCharacter() { 1001 Editable editable = getText(); 1002 int end = getSelectionEnd(); 1003 int start = mTokenizer.findTokenStart(editable, end); 1004 if (shouldCreateChip(start, end)) { 1005 commitChip(start, end, editable); 1006 } 1007 setSelection(getText().length()); 1008 } 1009 1010 private boolean commitChip(int start, int end, Editable editable) { 1011 ListAdapter adapter = getAdapter(); 1012 if (adapter != null && adapter.getCount() > 0 && enoughToFilter() 1013 && end == getSelectionEnd()) { 1014 // choose the first entry. 1015 submitItemAtPosition(0); 1016 dismissDropDown(); 1017 return true; 1018 } else { 1019 int tokenEnd = mTokenizer.findTokenEnd(editable, start); 1020 if (editable.length() > tokenEnd + 1) { 1021 char charAt = editable.charAt(tokenEnd + 1); 1022 if (charAt == COMMIT_CHAR_COMMA || charAt == COMMIT_CHAR_SEMICOLON) { 1023 tokenEnd++; 1024 } 1025 } 1026 String text = editable.toString().substring(start, tokenEnd).trim(); 1027 clearComposingText(); 1028 if (text != null && text.length() > 0 && !text.equals(" ")) { 1029 RecipientEntry entry = createTokenizedEntry(text); 1030 if (entry != null) { 1031 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1032 CharSequence chipText = createChip(entry, false); 1033 if (chipText != null && start > -1 && end > -1) { 1034 editable.replace(start, end, chipText); 1035 } 1036 } 1037 // Only dismiss the dropdown if it is related to the text we 1038 // just committed. 1039 // For paste, it may not be as there are possibly multiple 1040 // tokens being added. 1041 if (end == getSelectionEnd()) { 1042 dismissDropDown(); 1043 } 1044 sanitizeBetween(); 1045 return true; 1046 } 1047 } 1048 return false; 1049 } 1050 1051 // Visible for testing. 1052 /* package */ void sanitizeBetween() { 1053 // Don't sanitize while we are waiting for content to chipify. 1054 if (mPendingChipsCount > 0) { 1055 return; 1056 } 1057 // Find the last chip. 1058 RecipientChip[] recips = getSortedRecipients(); 1059 if (recips != null && recips.length > 0) { 1060 RecipientChip last = recips[recips.length - 1]; 1061 RecipientChip beforeLast = null; 1062 if (recips.length > 1) { 1063 beforeLast = recips[recips.length - 2]; 1064 } 1065 int startLooking = 0; 1066 int end = getSpannable().getSpanStart(last); 1067 if (beforeLast != null) { 1068 startLooking = getSpannable().getSpanEnd(beforeLast); 1069 Editable text = getText(); 1070 if (startLooking == -1 || startLooking > text.length() - 1) { 1071 // There is nothing after this chip. 1072 return; 1073 } 1074 if (text.charAt(startLooking) == ' ') { 1075 startLooking++; 1076 } 1077 } 1078 if (startLooking >= 0 && end >= 0 && startLooking != end) { 1079 getText().delete(startLooking, end); 1080 } 1081 } 1082 } 1083 1084 private boolean shouldCreateChip(int start, int end) { 1085 return !mNoChips && hasFocus() && enoughToFilter() && !alreadyHasChip(start, end); 1086 } 1087 1088 private boolean alreadyHasChip(int start, int end) { 1089 if (mNoChips) { 1090 return true; 1091 } 1092 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 1093 if ((chips == null || chips.length == 0)) { 1094 return false; 1095 } 1096 return true; 1097 } 1098 1099 private void handleEdit(int start, int end) { 1100 if (start == -1 || end == -1) { 1101 // This chip no longer exists in the field. 1102 dismissDropDown(); 1103 return; 1104 } 1105 // This is in the middle of a chip, so select out the whole chip 1106 // and commit it. 1107 Editable editable = getText(); 1108 setSelection(end); 1109 String text = getText().toString().substring(start, end); 1110 if (!TextUtils.isEmpty(text)) { 1111 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 1112 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1113 CharSequence chipText = createChip(entry, false); 1114 int selEnd = getSelectionEnd(); 1115 if (chipText != null && start > -1 && selEnd > -1) { 1116 editable.replace(start, selEnd, chipText); 1117 } 1118 } 1119 dismissDropDown(); 1120 } 1121 1122 /** 1123 * If there is a selected chip, delegate the key events 1124 * to the selected chip. 1125 */ 1126 @Override 1127 public boolean onKeyDown(int keyCode, KeyEvent event) { 1128 if (mSelectedChip != null && keyCode == KeyEvent.KEYCODE_DEL) { 1129 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1130 mAlternatesPopup.dismiss(); 1131 } 1132 removeChip(mSelectedChip); 1133 } 1134 1135 if (keyCode == KeyEvent.KEYCODE_ENTER && event.hasNoModifiers()) { 1136 return true; 1137 } 1138 1139 return super.onKeyDown(keyCode, event); 1140 } 1141 1142 // Visible for testing. 1143 /* package */ Spannable getSpannable() { 1144 return getText(); 1145 } 1146 1147 private int getChipStart(RecipientChip chip) { 1148 return getSpannable().getSpanStart(chip); 1149 } 1150 1151 private int getChipEnd(RecipientChip chip) { 1152 return getSpannable().getSpanEnd(chip); 1153 } 1154 1155 /** 1156 * Instead of filtering on the entire contents of the edit box, 1157 * this subclass method filters on the range from 1158 * {@link Tokenizer#findTokenStart} to {@link #getSelectionEnd} 1159 * if the length of that range meets or exceeds {@link #getThreshold} 1160 * and makes sure that the range is not already a Chip. 1161 */ 1162 @Override 1163 protected void performFiltering(CharSequence text, int keyCode) { 1164 if (enoughToFilter() && !isCompletedToken(text)) { 1165 int end = getSelectionEnd(); 1166 int start = mTokenizer.findTokenStart(text, end); 1167 // If this is a RecipientChip, don't filter 1168 // on its contents. 1169 Spannable span = getSpannable(); 1170 RecipientChip[] chips = span.getSpans(start, end, RecipientChip.class); 1171 if (chips != null && chips.length > 0) { 1172 return; 1173 } 1174 } 1175 super.performFiltering(text, keyCode); 1176 } 1177 1178 // Visible for testing. 1179 /*package*/ boolean isCompletedToken(CharSequence text) { 1180 if (TextUtils.isEmpty(text)) { 1181 return false; 1182 } 1183 // Check to see if this is a completed token before filtering. 1184 int end = text.length(); 1185 int start = mTokenizer.findTokenStart(text, end); 1186 String token = text.toString().substring(start, end).trim(); 1187 if (!TextUtils.isEmpty(token)) { 1188 char atEnd = token.charAt(token.length() - 1); 1189 return atEnd == COMMIT_CHAR_COMMA || atEnd == COMMIT_CHAR_SEMICOLON; 1190 } 1191 return false; 1192 } 1193 1194 private void clearSelectedChip() { 1195 if (mSelectedChip != null) { 1196 unselectChip(mSelectedChip); 1197 mSelectedChip = null; 1198 } 1199 setCursorVisible(true); 1200 } 1201 1202 /** 1203 * Monitor touch events in the RecipientEditTextView. 1204 * If the view does not have focus, any tap on the view 1205 * will just focus the view. If the view has focus, determine 1206 * if the touch target is a recipient chip. If it is and the chip 1207 * is not selected, select it and clear any other selected chips. 1208 * If it isn't, then select that chip. 1209 */ 1210 @Override 1211 public boolean onTouchEvent(MotionEvent event) { 1212 if (!isFocused()) { 1213 // Ignore any chip taps until this view is focused. 1214 return super.onTouchEvent(event); 1215 } 1216 boolean handled = super.onTouchEvent(event); 1217 int action = event.getAction(); 1218 boolean chipWasSelected = false; 1219 if (mSelectedChip == null) { 1220 mGestureDetector.onTouchEvent(event); 1221 } 1222 if (mCopyAddress == null && action == MotionEvent.ACTION_UP) { 1223 float x = event.getX(); 1224 float y = event.getY(); 1225 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 1226 RecipientChip currentChip = findChip(offset); 1227 if (currentChip != null) { 1228 if (action == MotionEvent.ACTION_UP) { 1229 if (mSelectedChip != null && mSelectedChip != currentChip) { 1230 clearSelectedChip(); 1231 mSelectedChip = selectChip(currentChip); 1232 } else if (mSelectedChip == null) { 1233 setSelection(getText().length()); 1234 commitDefault(); 1235 mSelectedChip = selectChip(currentChip); 1236 } else { 1237 onClick(mSelectedChip, offset, x, y); 1238 } 1239 } 1240 chipWasSelected = true; 1241 handled = true; 1242 } else if (mSelectedChip != null 1243 && mSelectedChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1244 chipWasSelected = true; 1245 } 1246 } 1247 if (action == MotionEvent.ACTION_UP && !chipWasSelected) { 1248 clearSelectedChip(); 1249 } 1250 return handled; 1251 } 1252 1253 private void scrollLineIntoView(int line) { 1254 if (mScrollView != null) { 1255 mScrollView.scrollBy(0, calculateOffsetFromBottom(line)); 1256 } 1257 } 1258 1259 private void showAlternates(RecipientChip currentChip, ListPopupWindow alternatesPopup, 1260 int width, Context context) { 1261 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1262 int bottom = calculateOffsetFromBottom(line); 1263 // Align the alternates popup with the left side of the View, 1264 // regardless of the position of the chip tapped. 1265 alternatesPopup.setWidth(width); 1266 setEnabled(false); 1267 alternatesPopup.setAnchorView(this); 1268 alternatesPopup.setVerticalOffset(bottom); 1269 alternatesPopup.setAdapter(createAlternatesAdapter(currentChip)); 1270 alternatesPopup.setOnItemClickListener(mAlternatesListener); 1271 // Clear the checked item. 1272 mCheckedItem = -1; 1273 alternatesPopup.show(); 1274 ListView listView = alternatesPopup.getListView(); 1275 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1276 // Checked item would be -1 if the adapter has not 1277 // loaded the view that should be checked yet. The 1278 // variable will be set correctly when onCheckedItemChanged 1279 // is called in a separate thread. 1280 if (mCheckedItem != -1) { 1281 listView.setItemChecked(mCheckedItem, true); 1282 mCheckedItem = -1; 1283 } 1284 } 1285 1286 // Dismiss listener for alterns and single address popup. 1287 @Override 1288 public void onDismiss() { 1289 setEnabled(true); 1290 } 1291 1292 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 1293 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 1294 mAlternatesLayout, this); 1295 } 1296 1297 private ListAdapter createSingleAddressAdapter(RecipientChip currentChip) { 1298 return new SingleRecipientArrayAdapter(getContext(), mAlternatesLayout, currentChip 1299 .getEntry()); 1300 } 1301 1302 @Override 1303 public void onCheckedItemChanged(int position) { 1304 ListView listView = mAlternatesPopup.getListView(); 1305 if (listView != null && listView.getCheckedItemCount() == 0) { 1306 listView.setItemChecked(position, true); 1307 } 1308 mCheckedItem = position; 1309 } 1310 1311 // TODO: This algorithm will need a lot of tweaking after more people have used 1312 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 1313 // what comes before the finger. 1314 private int putOffsetInRange(int o) { 1315 int offset = o; 1316 Editable text = getText(); 1317 int length = text.length(); 1318 // Remove whitespace from end to find "real end" 1319 int realLength = length; 1320 for (int i = length - 1; i >= 0; i--) { 1321 if (text.charAt(i) == ' ') { 1322 realLength--; 1323 } else { 1324 break; 1325 } 1326 } 1327 1328 // If the offset is beyond or at the end of the text, 1329 // leave it alone. 1330 if (offset >= realLength) { 1331 return offset; 1332 } 1333 Editable editable = getText(); 1334 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 1335 // Keep walking backward! 1336 offset--; 1337 } 1338 return offset; 1339 } 1340 1341 private int findText(Editable text, int offset) { 1342 if (text.charAt(offset) != ' ') { 1343 return offset; 1344 } 1345 return -1; 1346 } 1347 1348 private RecipientChip findChip(int offset) { 1349 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1350 // Find the chip that contains this offset. 1351 for (int i = 0; i < chips.length; i++) { 1352 RecipientChip chip = chips[i]; 1353 int start = getChipStart(chip); 1354 int end = getChipEnd(chip); 1355 if (offset >= start && offset <= end) { 1356 return chip; 1357 } 1358 } 1359 return null; 1360 } 1361 1362 // Visible for testing. 1363 // Use this method to generate text to add to the list of addresses. 1364 /*package*/ String createAddressText(RecipientEntry entry) { 1365 String display = entry.getDisplayName(); 1366 String address = entry.getDestination(); 1367 if (TextUtils.isEmpty(display) || TextUtils.equals(display, address)) { 1368 display = null; 1369 } 1370 if (address != null) { 1371 // Tokenize out the address in case the address already 1372 // contained the username as well. 1373 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(address); 1374 if (tokenized != null && tokenized.length > 0) { 1375 address = tokenized[0].getAddress(); 1376 } 1377 } 1378 Rfc822Token token = new Rfc822Token(display, address, null); 1379 String trimmedDisplayText = token.toString().trim(); 1380 int index = trimmedDisplayText.indexOf(","); 1381 return index < trimmedDisplayText.length() - 1 ? (String) mTokenizer 1382 .terminateToken(trimmedDisplayText) : trimmedDisplayText; 1383 } 1384 1385 // Visible for testing. 1386 // Use this method to generate text to display in a chip. 1387 /*package*/ String createChipDisplayText(RecipientEntry entry) { 1388 String display = entry.getDisplayName(); 1389 String address = entry.getDestination(); 1390 if (TextUtils.isEmpty(display) || TextUtils.equals(display, address)) { 1391 display = null; 1392 } 1393 if (address != null) { 1394 // Tokenize out the address in case the address already 1395 // contained the username as well. 1396 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(address); 1397 if (tokenized != null && tokenized.length > 0) { 1398 address = tokenized[0].getAddress(); 1399 } 1400 } 1401 if (!TextUtils.isEmpty(display)) { 1402 return display; 1403 } else if (!TextUtils.isEmpty(address)){ 1404 return address; 1405 } else { 1406 return new Rfc822Token(display, address, null).toString(); 1407 } 1408 } 1409 1410 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 1411 String displayText = createAddressText(entry); 1412 if (TextUtils.isEmpty(displayText)) { 1413 return null; 1414 } 1415 SpannableString chipText = null; 1416 // Always leave a blank space at the end of a chip. 1417 int end = getSelectionEnd(); 1418 int start = mTokenizer.findTokenStart(getText(), end); 1419 int textLength = displayText.length()-1; 1420 chipText = new SpannableString(displayText); 1421 if (!mNoChips) { 1422 try { 1423 RecipientChip chip = constructChipSpan(entry, start, pressed); 1424 chipText.setSpan(chip, 0, textLength, 1425 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1426 chip.setOriginalText(chipText.toString()); 1427 } catch (NullPointerException e) { 1428 Log.e(TAG, e.getMessage(), e); 1429 return null; 1430 } 1431 } 1432 return chipText; 1433 } 1434 1435 /** 1436 * When an item in the suggestions list has been clicked, create a chip from the 1437 * contact information of the selected item. 1438 */ 1439 @Override 1440 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1441 submitItemAtPosition(position); 1442 } 1443 1444 private void submitItemAtPosition(int position) { 1445 RecipientEntry entry = createValidatedEntry( 1446 (RecipientEntry)getAdapter().getItem(position)); 1447 if (entry == null) { 1448 return; 1449 } 1450 clearComposingText(); 1451 1452 int end = getSelectionEnd(); 1453 int start = mTokenizer.findTokenStart(getText(), end); 1454 1455 Editable editable = getText(); 1456 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1457 CharSequence chip = createChip(entry, false); 1458 if (chip != null && start >= 0 && end >= 0) { 1459 editable.replace(start, end, chip); 1460 } 1461 sanitizeBetween(); 1462 } 1463 1464 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1465 if (item == null) { 1466 return null; 1467 } 1468 final RecipientEntry entry; 1469 // If the display name and the address are the same, or if this is a 1470 // valid contact, but the destination is invalid, then make this a fake 1471 // recipient that is editable. 1472 String destination = item.getDestination(); 1473 if (RecipientEntry.isCreatedRecipient(item.getContactId()) 1474 && (TextUtils.isEmpty(item.getDisplayName()) 1475 || TextUtils.equals(item.getDisplayName(), destination) 1476 || (mValidator != null && !mValidator.isValid(destination)))) { 1477 entry = RecipientEntry.constructFakeEntry(destination); 1478 } else { 1479 entry = item; 1480 } 1481 return entry; 1482 } 1483 1484 /** Returns a collection of contact Id for each chip inside this View. */ 1485 /* package */ Collection<Long> getContactIds() { 1486 final Set<Long> result = new HashSet<Long>(); 1487 RecipientChip[] chips = getSortedRecipients(); 1488 if (chips != null) { 1489 for (RecipientChip chip : chips) { 1490 result.add(chip.getContactId()); 1491 } 1492 } 1493 return result; 1494 } 1495 1496 1497 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1498 /* package */ Collection<Long> getDataIds() { 1499 final Set<Long> result = new HashSet<Long>(); 1500 RecipientChip [] chips = getSortedRecipients(); 1501 if (chips != null) { 1502 for (RecipientChip chip : chips) { 1503 result.add(chip.getDataId()); 1504 } 1505 } 1506 return result; 1507 } 1508 1509 // Visible for testing. 1510 /* package */RecipientChip[] getSortedRecipients() { 1511 RecipientChip[] recips = getSpannable() 1512 .getSpans(0, getText().length(), RecipientChip.class); 1513 ArrayList<RecipientChip> recipientsList = new ArrayList<RecipientChip>(Arrays 1514 .asList(recips)); 1515 final Spannable spannable = getSpannable(); 1516 Collections.sort(recipientsList, new Comparator<RecipientChip>() { 1517 1518 @Override 1519 public int compare(RecipientChip first, RecipientChip second) { 1520 int firstStart = spannable.getSpanStart(first); 1521 int secondStart = spannable.getSpanStart(second); 1522 if (firstStart < secondStart) { 1523 return -1; 1524 } else if (firstStart > secondStart) { 1525 return 1; 1526 } else { 1527 return 0; 1528 } 1529 } 1530 }); 1531 return recipientsList.toArray(new RecipientChip[recipientsList.size()]); 1532 } 1533 1534 @Override 1535 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1536 return false; 1537 } 1538 1539 @Override 1540 public void onDestroyActionMode(ActionMode mode) { 1541 } 1542 1543 @Override 1544 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1545 return false; 1546 } 1547 1548 /** 1549 * No chips are selectable. 1550 */ 1551 @Override 1552 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1553 return false; 1554 } 1555 1556 // Visible for testing. 1557 /* package */ImageSpan getMoreChip() { 1558 MoreImageSpan[] moreSpans = getSpannable().getSpans(0, getText().length(), 1559 MoreImageSpan.class); 1560 return moreSpans != null && moreSpans.length > 0 ? moreSpans[0] : null; 1561 } 1562 1563 private MoreImageSpan createMoreSpan(int count) { 1564 String moreText = String.format(mMoreItem.getText().toString(), count); 1565 TextPaint morePaint = new TextPaint(getPaint()); 1566 morePaint.setTextSize(mMoreItem.getTextSize()); 1567 morePaint.setColor(mMoreItem.getCurrentTextColor()); 1568 int width = (int)morePaint.measureText(moreText) + mMoreItem.getPaddingLeft() 1569 + mMoreItem.getPaddingRight(); 1570 int height = getLineHeight(); 1571 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1572 Canvas canvas = new Canvas(drawable); 1573 int adjustedHeight = height; 1574 Layout layout = getLayout(); 1575 if (layout != null) { 1576 adjustedHeight -= layout.getLineDescent(0); 1577 } 1578 canvas.drawText(moreText, 0, moreText.length(), 0, adjustedHeight, morePaint); 1579 1580 Drawable result = new BitmapDrawable(getResources(), drawable); 1581 result.setBounds(0, 0, width, height); 1582 return new MoreImageSpan(result); 1583 } 1584 1585 // Visible for testing. 1586 /*package*/ void createMoreChipPlainText() { 1587 // Take the first <= CHIP_LIMIT addresses and get to the end of the second one. 1588 Editable text = getText(); 1589 int start = 0; 1590 int end = start; 1591 for (int i = 0; i < CHIP_LIMIT; i++) { 1592 end = movePastTerminators(mTokenizer.findTokenEnd(text, start)); 1593 start = end; // move to the next token and get its end. 1594 } 1595 // Now, count total addresses. 1596 start = 0; 1597 int tokenCount = countTokens(text); 1598 MoreImageSpan moreSpan = createMoreSpan(tokenCount - CHIP_LIMIT); 1599 SpannableString chipText = new SpannableString(text.subSequence(end, text.length())); 1600 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1601 text.replace(end, text.length(), chipText); 1602 mMoreChip = moreSpan; 1603 } 1604 1605 // Visible for testing. 1606 /* package */int countTokens(Editable text) { 1607 int tokenCount = 0; 1608 int start = 0; 1609 while (start < text.length()) { 1610 start = movePastTerminators(mTokenizer.findTokenEnd(text, start)); 1611 tokenCount++; 1612 if (start >= text.length()) { 1613 break; 1614 } 1615 } 1616 return tokenCount; 1617 } 1618 1619 /** 1620 * Create the more chip. The more chip is text that replaces any chips that 1621 * do not fit in the pre-defined available space when the 1622 * RecipientEditTextView loses focus. 1623 */ 1624 // Visible for testing. 1625 /* package */ void createMoreChip() { 1626 if (mNoChips) { 1627 createMoreChipPlainText(); 1628 return; 1629 } 1630 1631 if (!mShouldShrink) { 1632 return; 1633 } 1634 1635 ImageSpan[] tempMore = getSpannable().getSpans(0, getText().length(), MoreImageSpan.class); 1636 if (tempMore.length > 0) { 1637 getSpannable().removeSpan(tempMore[0]); 1638 } 1639 RecipientChip[] recipients = getSortedRecipients(); 1640 1641 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1642 mMoreChip = null; 1643 return; 1644 } 1645 Spannable spannable = getSpannable(); 1646 int numRecipients = recipients.length; 1647 int overage = numRecipients - CHIP_LIMIT; 1648 MoreImageSpan moreSpan = createMoreSpan(overage); 1649 mRemovedSpans = new ArrayList<RecipientChip>(); 1650 int totalReplaceStart = 0; 1651 int totalReplaceEnd = 0; 1652 Editable text = getText(); 1653 for (int i = numRecipients - overage; i < recipients.length; i++) { 1654 mRemovedSpans.add(recipients[i]); 1655 if (i == numRecipients - overage) { 1656 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1657 } 1658 if (i == recipients.length - 1) { 1659 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1660 } 1661 if (mTemporaryRecipients == null || !mTemporaryRecipients.contains(recipients[i])) { 1662 int spanStart = spannable.getSpanStart(recipients[i]); 1663 int spanEnd = spannable.getSpanEnd(recipients[i]); 1664 recipients[i].setOriginalText(text.toString().substring(spanStart, spanEnd)); 1665 } 1666 spannable.removeSpan(recipients[i]); 1667 } 1668 if (totalReplaceEnd < text.length()) { 1669 totalReplaceEnd = text.length(); 1670 } 1671 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1672 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1673 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1674 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1675 text.replace(start, end, chipText); 1676 mMoreChip = moreSpan; 1677 } 1678 1679 /** 1680 * Replace the more chip, if it exists, with all of the recipient chips it had 1681 * replaced when the RecipientEditTextView gains focus. 1682 */ 1683 // Visible for testing. 1684 /*package*/ void removeMoreChip() { 1685 if (mMoreChip != null) { 1686 Spannable span = getSpannable(); 1687 span.removeSpan(mMoreChip); 1688 mMoreChip = null; 1689 // Re-add the spans that were removed. 1690 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1691 // Recreate each removed span. 1692 RecipientChip[] recipients = getSortedRecipients(); 1693 // Start the search for tokens after the last currently visible 1694 // chip. 1695 if (recipients == null || recipients.length == 0) { 1696 return; 1697 } 1698 int end = span.getSpanEnd(recipients[recipients.length - 1]); 1699 Editable editable = getText(); 1700 for (RecipientChip chip : mRemovedSpans) { 1701 int chipStart; 1702 int chipEnd; 1703 String token; 1704 // Need to find the location of the chip, again. 1705 token = (String) chip.getOriginalText(); 1706 // As we find the matching recipient for the remove spans, 1707 // reduce the size of the string we need to search. 1708 // That way, if there are duplicates, we always find the correct 1709 // recipient. 1710 chipStart = editable.toString().indexOf(token, end); 1711 end = chipEnd = Math.min(editable.length(), chipStart + token.length()); 1712 // Only set the span if we found a matching token. 1713 if (chipStart != -1) { 1714 editable.setSpan(chip, chipStart, chipEnd, 1715 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1716 } 1717 } 1718 mRemovedSpans.clear(); 1719 } 1720 } 1721 } 1722 1723 /** 1724 * Show specified chip as selected. If the RecipientChip is just an email address, 1725 * selecting the chip will take the contents of the chip and place it at 1726 * the end of the RecipientEditTextView for inline editing. If the 1727 * RecipientChip is a complete contact, then selecting the chip 1728 * will change the background color of the chip, show the delete icon, 1729 * and a popup window with the address in use highlighted and any other 1730 * alternate addresses for the contact. 1731 * @param currentChip Chip to select. 1732 * @return A RecipientChip in the selected state or null if the chip 1733 * just contained an email address. 1734 */ 1735 private RecipientChip selectChip(RecipientChip currentChip) { 1736 if (currentChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1737 CharSequence text = currentChip.getValue(); 1738 Editable editable = getText(); 1739 removeChip(currentChip); 1740 editable.append(text); 1741 setCursorVisible(true); 1742 setSelection(editable.length()); 1743 return new RecipientChip(null, RecipientEntry.constructFakeEntry((String) text), -1); 1744 } else if (currentChip.getContactId() == RecipientEntry.GENERATED_CONTACT) { 1745 int start = getChipStart(currentChip); 1746 int end = getChipEnd(currentChip); 1747 getSpannable().removeSpan(currentChip); 1748 RecipientChip newChip; 1749 try { 1750 if (mNoChips) { 1751 return null; 1752 } 1753 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1754 } catch (NullPointerException e) { 1755 Log.e(TAG, e.getMessage(), e); 1756 return null; 1757 } 1758 Editable editable = getText(); 1759 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1760 if (start == -1 || end == -1) { 1761 Log.d(TAG, "The chip being selected no longer exists but should."); 1762 } else { 1763 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1764 } 1765 newChip.setSelected(true); 1766 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1767 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1768 } 1769 showAddress(newChip, mAddressPopup, getWidth(), getContext()); 1770 setCursorVisible(false); 1771 return newChip; 1772 } else { 1773 int start = getChipStart(currentChip); 1774 int end = getChipEnd(currentChip); 1775 getSpannable().removeSpan(currentChip); 1776 RecipientChip newChip; 1777 try { 1778 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1779 } catch (NullPointerException e) { 1780 Log.e(TAG, e.getMessage(), e); 1781 return null; 1782 } 1783 Editable editable = getText(); 1784 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1785 if (start == -1 || end == -1) { 1786 Log.d(TAG, "The chip being selected no longer exists but should."); 1787 } else { 1788 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1789 } 1790 newChip.setSelected(true); 1791 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1792 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1793 } 1794 showAlternates(newChip, mAlternatesPopup, getWidth(), getContext()); 1795 setCursorVisible(false); 1796 return newChip; 1797 } 1798 } 1799 1800 1801 private void showAddress(final RecipientChip currentChip, final ListPopupWindow popup, 1802 int width, Context context) { 1803 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1804 int bottom = calculateOffsetFromBottom(line); 1805 // Align the alternates popup with the left side of the View, 1806 // regardless of the position of the chip tapped. 1807 setEnabled(false); 1808 popup.setWidth(width); 1809 popup.setAnchorView(this); 1810 popup.setVerticalOffset(bottom); 1811 popup.setAdapter(createSingleAddressAdapter(currentChip)); 1812 popup.setOnItemClickListener(new OnItemClickListener() { 1813 @Override 1814 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1815 unselectChip(currentChip); 1816 popup.dismiss(); 1817 } 1818 }); 1819 popup.show(); 1820 ListView listView = popup.getListView(); 1821 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1822 listView.setItemChecked(0, true); 1823 } 1824 1825 /** 1826 * Remove selection from this chip. Unselecting a RecipientChip will render 1827 * the chip without a delete icon and with an unfocused background. This is 1828 * called when the RecipientChip no longer has focus. 1829 */ 1830 private void unselectChip(RecipientChip chip) { 1831 int start = getChipStart(chip); 1832 int end = getChipEnd(chip); 1833 Editable editable = getText(); 1834 mSelectedChip = null; 1835 if (start == -1 || end == -1) { 1836 Log.w(TAG, "The chip doesn't exist or may be a chip a user was editing"); 1837 setSelection(editable.length()); 1838 commitDefault(); 1839 } else { 1840 getSpannable().removeSpan(chip); 1841 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1842 editable.removeSpan(chip); 1843 try { 1844 if (!mNoChips) { 1845 editable.setSpan(constructChipSpan(chip.getEntry(), start, false), start, end, 1846 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1847 } 1848 } catch (NullPointerException e) { 1849 Log.e(TAG, e.getMessage(), e); 1850 } 1851 } 1852 setCursorVisible(true); 1853 setSelection(editable.length()); 1854 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1855 mAlternatesPopup.dismiss(); 1856 } 1857 } 1858 1859 /** 1860 * Return whether a touch event was inside the delete target of 1861 * a selected chip. It is in the delete target if: 1862 * 1) the x and y points of the event are within the 1863 * delete assset. 1864 * 2) the point tapped would have caused a cursor to appear 1865 * right after the selected chip. 1866 * @return boolean 1867 */ 1868 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1869 // Figure out the bounds of this chip and whether or not 1870 // the user clicked in the X portion. 1871 return chip.isSelected() && offset == getChipEnd(chip); 1872 } 1873 1874 /** 1875 * Remove the chip and any text associated with it from the RecipientEditTextView. 1876 */ 1877 // Visible for testing. 1878 /*pacakge*/ void removeChip(RecipientChip chip) { 1879 Spannable spannable = getSpannable(); 1880 int spanStart = spannable.getSpanStart(chip); 1881 int spanEnd = spannable.getSpanEnd(chip); 1882 Editable text = getText(); 1883 int toDelete = spanEnd; 1884 boolean wasSelected = chip == mSelectedChip; 1885 // Clear that there is a selected chip before updating any text. 1886 if (wasSelected) { 1887 mSelectedChip = null; 1888 } 1889 // Always remove trailing spaces when removing a chip. 1890 while (toDelete >= 0 && toDelete < text.length() && text.charAt(toDelete) == ' ') { 1891 toDelete++; 1892 } 1893 spannable.removeSpan(chip); 1894 text.delete(spanStart, toDelete); 1895 if (wasSelected) { 1896 clearSelectedChip(); 1897 } 1898 } 1899 1900 /** 1901 * Replace this currently selected chip with a new chip 1902 * that uses the contact data provided. 1903 */ 1904 // Visible for testing. 1905 /*package*/ void replaceChip(RecipientChip chip, RecipientEntry entry) { 1906 boolean wasSelected = chip == mSelectedChip; 1907 if (wasSelected) { 1908 mSelectedChip = null; 1909 } 1910 int start = getChipStart(chip); 1911 int end = getChipEnd(chip); 1912 getSpannable().removeSpan(chip); 1913 Editable editable = getText(); 1914 CharSequence chipText = createChip(entry, false); 1915 if (chipText != null) { 1916 if (start == -1 || end == -1) { 1917 Log.e(TAG, "The chip to replace does not exist but should."); 1918 editable.insert(0, chipText); 1919 } else { 1920 if (!TextUtils.isEmpty(chipText)) { 1921 // There may be a space to replace with this chip's new 1922 // associated 1923 // space. Check for it 1924 int toReplace = end; 1925 while (toReplace >= 0 && toReplace < editable.length() 1926 && editable.charAt(toReplace) == ' ') { 1927 toReplace++; 1928 } 1929 editable.replace(start, toReplace, chipText); 1930 } 1931 } 1932 } 1933 setCursorVisible(true); 1934 if (wasSelected) { 1935 clearSelectedChip(); 1936 } 1937 } 1938 1939 /** 1940 * Handle click events for a chip. When a selected chip receives a click 1941 * event, see if that event was in the delete icon. If so, delete it. 1942 * Otherwise, unselect the chip. 1943 */ 1944 public void onClick(RecipientChip chip, int offset, float x, float y) { 1945 if (chip.isSelected()) { 1946 if (isInDelete(chip, offset, x, y)) { 1947 removeChip(chip); 1948 } else { 1949 clearSelectedChip(); 1950 } 1951 } 1952 } 1953 1954 private boolean chipsPending() { 1955 return mPendingChipsCount > 0 || (mRemovedSpans != null && mRemovedSpans.size() > 0); 1956 } 1957 1958 @Override 1959 public void removeTextChangedListener(TextWatcher watcher) { 1960 mTextWatcher = null; 1961 super.removeTextChangedListener(watcher); 1962 } 1963 1964 private class RecipientTextWatcher implements TextWatcher { 1965 @Override 1966 public void afterTextChanged(Editable s) { 1967 // If the text has been set to null or empty, make sure we remove 1968 // all the spans we applied. 1969 if (TextUtils.isEmpty(s)) { 1970 // Remove all the chips spans. 1971 Spannable spannable = getSpannable(); 1972 RecipientChip[] chips = spannable.getSpans(0, getText().length(), 1973 RecipientChip.class); 1974 for (RecipientChip chip : chips) { 1975 spannable.removeSpan(chip); 1976 } 1977 if (mMoreChip != null) { 1978 spannable.removeSpan(mMoreChip); 1979 } 1980 return; 1981 } 1982 // Get whether there are any recipients pending addition to the 1983 // view. If there are, don't do anything in the text watcher. 1984 if (chipsPending()) { 1985 return; 1986 } 1987 // If the user is editing a chip, don't clear it. 1988 if (mSelectedChip != null 1989 && mSelectedChip.getContactId() != RecipientEntry.INVALID_CONTACT) { 1990 setCursorVisible(true); 1991 setSelection(getText().length()); 1992 clearSelectedChip(); 1993 } 1994 int length = s.length(); 1995 // Make sure there is content there to parse and that it is 1996 // not just the commit character. 1997 if (length > 1) { 1998 char last; 1999 int end = getSelectionEnd() == 0 ? 0 : getSelectionEnd() - 1; 2000 int len = length() - 1; 2001 if (end != len) { 2002 last = s.charAt(end); 2003 } else { 2004 last = s.charAt(len); 2005 } 2006 if (last == COMMIT_CHAR_SEMICOLON || last == COMMIT_CHAR_COMMA) { 2007 commitByCharacter(); 2008 } else if (last == COMMIT_CHAR_SPACE) { 2009 // Check if this is a valid email address. If it is, 2010 // commit it. 2011 String text = getText().toString(); 2012 int tokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 2013 String sub = text.substring(tokenStart, mTokenizer.findTokenEnd(text, 2014 tokenStart)); 2015 if (!TextUtils.isEmpty(sub) && mValidator != null && mValidator.isValid(sub)) { 2016 commitByCharacter(); 2017 } 2018 } 2019 } 2020 } 2021 2022 @Override 2023 public void onTextChanged(CharSequence s, int start, int before, int count) { 2024 // Do nothing. 2025 } 2026 2027 @Override 2028 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 2029 // Do nothing. 2030 } 2031 } 2032 2033 /** 2034 * Handles pasting a {@link ClipData} to this {@link RecipientEditTextView}. 2035 */ 2036 private void handlePasteClip(ClipData clip) { 2037 removeTextChangedListener(mTextWatcher); 2038 2039 if (clip != null && clip.getDescription().hasMimeType(ClipDescription.MIMETYPE_TEXT_PLAIN)){ 2040 for (int i = 0; i < clip.getItemCount(); i++) { 2041 CharSequence paste = clip.getItemAt(i).getText(); 2042 if (paste != null) { 2043 int start = getSelectionStart(); 2044 int end = getSelectionEnd(); 2045 Editable editable = getText(); 2046 if (start >= 0 && end >= 0 && start != end) { 2047 editable.append(paste, start, end); 2048 } else { 2049 editable.insert(end, paste); 2050 } 2051 handlePasteAndReplace(); 2052 } 2053 } 2054 } 2055 2056 mHandler.post(mAddTextWatcher); 2057 } 2058 2059 @Override 2060 public boolean onTextContextMenuItem(int id) { 2061 if (id == android.R.id.paste) { 2062 ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService( 2063 Context.CLIPBOARD_SERVICE); 2064 handlePasteClip(clipboard.getPrimaryClip()); 2065 return true; 2066 } 2067 return super.onTextContextMenuItem(id); 2068 } 2069 2070 private void handlePasteAndReplace() { 2071 ArrayList<RecipientChip> created = handlePaste(); 2072 if (created != null && created.size() > 0) { 2073 // Perform reverse lookups on the pasted contacts. 2074 IndividualReplacementTask replace = new IndividualReplacementTask(); 2075 replace.execute(created); 2076 } 2077 } 2078 2079 // Visible for testing. 2080 /* package */ArrayList<RecipientChip> handlePaste() { 2081 String text = getText().toString(); 2082 int originalTokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 2083 String lastAddress = text.substring(originalTokenStart); 2084 int tokenStart = originalTokenStart; 2085 int prevTokenStart = tokenStart; 2086 RecipientChip findChip = null; 2087 ArrayList<RecipientChip> created = new ArrayList<RecipientChip>(); 2088 if (tokenStart != 0) { 2089 // There are things before this! 2090 while (tokenStart != 0 && findChip == null) { 2091 prevTokenStart = tokenStart; 2092 tokenStart = mTokenizer.findTokenStart(text, tokenStart); 2093 findChip = findChip(tokenStart); 2094 } 2095 if (tokenStart != originalTokenStart) { 2096 if (findChip != null) { 2097 tokenStart = prevTokenStart; 2098 } 2099 int tokenEnd; 2100 RecipientChip createdChip; 2101 while (tokenStart < originalTokenStart) { 2102 tokenEnd = movePastTerminators(mTokenizer.findTokenEnd(text, tokenStart)); 2103 commitChip(tokenStart, tokenEnd, getText()); 2104 createdChip = findChip(tokenStart); 2105 // +1 for the space at the end. 2106 tokenStart = getSpannable().getSpanEnd(createdChip) + 1; 2107 created.add(createdChip); 2108 } 2109 } 2110 } 2111 // Take a look at the last token. If the token has been completed with a 2112 // commit character, create a chip. 2113 if (isCompletedToken(lastAddress)) { 2114 Editable editable = getText(); 2115 tokenStart = editable.toString().indexOf(lastAddress, originalTokenStart); 2116 commitChip(tokenStart, editable.length(), editable); 2117 created.add(findChip(tokenStart)); 2118 } 2119 return created; 2120 } 2121 2122 // Visible for testing. 2123 /* package */int movePastTerminators(int tokenEnd) { 2124 if (tokenEnd >= length()) { 2125 return tokenEnd; 2126 } 2127 char atEnd = getText().toString().charAt(tokenEnd); 2128 if (atEnd == COMMIT_CHAR_COMMA || atEnd == COMMIT_CHAR_SEMICOLON) { 2129 tokenEnd++; 2130 } 2131 // This token had not only an end token character, but also a space 2132 // separating it from the next token. 2133 if (tokenEnd < length() && getText().toString().charAt(tokenEnd) == ' ') { 2134 tokenEnd++; 2135 } 2136 return tokenEnd; 2137 } 2138 2139 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 2140 private RecipientChip createFreeChip(RecipientEntry entry) { 2141 try { 2142 if (mNoChips) { 2143 return null; 2144 } 2145 return constructChipSpan(entry, -1, false); 2146 } catch (NullPointerException e) { 2147 Log.e(TAG, e.getMessage(), e); 2148 return null; 2149 } 2150 } 2151 2152 @Override 2153 protected Void doInBackground(Void... params) { 2154 if (mIndividualReplacements != null) { 2155 mIndividualReplacements.cancel(true); 2156 } 2157 // For each chip in the list, look up the matching contact. 2158 // If there is a match, replace that chip with the matching 2159 // chip. 2160 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 2161 RecipientChip[] existingChips = getSortedRecipients(); 2162 for (int i = 0; i < existingChips.length; i++) { 2163 originalRecipients.add(existingChips[i]); 2164 } 2165 if (mRemovedSpans != null) { 2166 originalRecipients.addAll(mRemovedSpans); 2167 } 2168 String[] addresses = new String[originalRecipients.size()]; 2169 for (int i = 0; i < originalRecipients.size(); i++) { 2170 addresses[i] = createAddressText(originalRecipients.get(i).getEntry()); 2171 } 2172 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 2173 .getMatchingRecipients(getContext(), addresses); 2174 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 2175 for (final RecipientChip temp : originalRecipients) { 2176 RecipientEntry entry = null; 2177 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 2178 && getSpannable().getSpanStart(temp) != -1) { 2179 // Replace this. 2180 entry = createValidatedEntry(entries.get(tokenizeAddress(temp.getEntry() 2181 .getDestination()))); 2182 } 2183 if (entry != null) { 2184 replacements.add(createFreeChip(entry)); 2185 } else { 2186 replacements.add(temp); 2187 } 2188 } 2189 if (replacements != null && replacements.size() > 0) { 2190 mHandler.post(new Runnable() { 2191 @Override 2192 public void run() { 2193 SpannableStringBuilder text = new SpannableStringBuilder(getText() 2194 .toString()); 2195 Editable oldText = getText(); 2196 int start, end; 2197 int i = 0; 2198 for (RecipientChip chip : originalRecipients) { 2199 start = oldText.getSpanStart(chip); 2200 if (start != -1) { 2201 end = oldText.getSpanEnd(chip); 2202 oldText.removeSpan(chip); 2203 // Leave a spot for the space! 2204 RecipientChip replacement = replacements.get(i); 2205 text.setSpan(replacement, start, end, 2206 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 2207 replacement.setOriginalText(text.toString().substring(start, end)); 2208 } 2209 i++; 2210 } 2211 originalRecipients.clear(); 2212 setText(text); 2213 } 2214 }); 2215 } 2216 return null; 2217 } 2218 } 2219 2220 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 2221 @SuppressWarnings("unchecked") 2222 @Override 2223 protected Void doInBackground(Object... params) { 2224 // For each chip in the list, look up the matching contact. 2225 // If there is a match, replace that chip with the matching 2226 // chip. 2227 final ArrayList<RecipientChip> originalRecipients = 2228 (ArrayList<RecipientChip>) params[0]; 2229 String[] addresses = new String[originalRecipients.size()]; 2230 for (int i = 0; i < originalRecipients.size(); i++) { 2231 addresses[i] = createAddressText(originalRecipients.get(i).getEntry()); 2232 } 2233 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 2234 .getMatchingRecipients(getContext(), addresses); 2235 for (final RecipientChip temp : originalRecipients) { 2236 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 2237 && getSpannable().getSpanStart(temp) != -1) { 2238 // Replace this. 2239 final RecipientEntry entry = createValidatedEntry(entries 2240 .get(tokenizeAddress(temp.getEntry().getDestination()).toLowerCase())); 2241 if (entry != null) { 2242 mHandler.post(new Runnable() { 2243 @Override 2244 public void run() { 2245 replaceChip(temp, entry); 2246 } 2247 }); 2248 } 2249 } 2250 } 2251 return null; 2252 } 2253 } 2254 2255 2256 /** 2257 * MoreImageSpan is a simple class created for tracking the existence of a 2258 * more chip across activity restarts/ 2259 */ 2260 private class MoreImageSpan extends ImageSpan { 2261 public MoreImageSpan(Drawable b) { 2262 super(b); 2263 } 2264 } 2265 2266 @Override 2267 public boolean onDown(MotionEvent e) { 2268 return false; 2269 } 2270 2271 @Override 2272 public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { 2273 // Do nothing. 2274 return false; 2275 } 2276 2277 @Override 2278 public void onLongPress(MotionEvent event) { 2279 if (mSelectedChip != null) { 2280 return; 2281 } 2282 float x = event.getX(); 2283 float y = event.getY(); 2284 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 2285 RecipientChip currentChip = findChip(offset); 2286 if (currentChip != null) { 2287 if (mDragEnabled) { 2288 // Start drag-and-drop for the selected chip. 2289 startDrag(currentChip); 2290 } else { 2291 // Copy the selected chip email address. 2292 showCopyDialog(currentChip.getEntry().getDestination()); 2293 } 2294 } 2295 } 2296 2297 /** 2298 * Enables drag-and-drop for chips. 2299 */ 2300 public void enableDrag() { 2301 mDragEnabled = true; 2302 } 2303 2304 /** 2305 * Starts drag-and-drop for the selected chip. 2306 */ 2307 private void startDrag(RecipientChip currentChip) { 2308 String address = currentChip.getEntry().getDestination(); 2309 ClipData data = ClipData.newPlainText(address, address + COMMIT_CHAR_COMMA); 2310 2311 // Start drag mode. 2312 startDrag(data, new RecipientChipShadow(currentChip), null, 0); 2313 2314 // Remove the current chip, so drag-and-drop will result in a move. 2315 // TODO (phamm): consider readd this chip if it's dropped outside a target. 2316 removeChip(currentChip); 2317 } 2318 2319 /** 2320 * Handles drag event. 2321 */ 2322 @Override 2323 public boolean onDragEvent(DragEvent event) { 2324 switch (event.getAction()) { 2325 case DragEvent.ACTION_DRAG_STARTED: 2326 // Only handle plain text drag and drop. 2327 return event.getClipDescription().hasMimeType(ClipDescription.MIMETYPE_TEXT_PLAIN); 2328 case DragEvent.ACTION_DRAG_ENTERED: 2329 requestFocus(); 2330 return true; 2331 case DragEvent.ACTION_DROP: 2332 handlePasteClip(event.getClipData()); 2333 return true; 2334 } 2335 return false; 2336 } 2337 2338 /** 2339 * Drag shadow for a {@link RecipientChip}. 2340 */ 2341 private final class RecipientChipShadow extends DragShadowBuilder { 2342 private final RecipientChip mChip; 2343 2344 public RecipientChipShadow(RecipientChip chip) { 2345 mChip = chip; 2346 } 2347 2348 @Override 2349 public void onProvideShadowMetrics(Point shadowSize, Point shadowTouchPoint) { 2350 Rect rect = mChip.getDrawable().getBounds(); 2351 shadowSize.set(rect.width(), rect.height()); 2352 shadowTouchPoint.set(rect.centerX(), rect.centerY()); 2353 } 2354 2355 @Override 2356 public void onDrawShadow(Canvas canvas) { 2357 mChip.getDrawable().draw(canvas); 2358 } 2359 } 2360 2361 private void showCopyDialog(final String address) { 2362 mCopyAddress = address; 2363 mCopyDialog.setTitle(address); 2364 mCopyDialog.setContentView(mCopyViewRes); 2365 mCopyDialog.setCancelable(true); 2366 mCopyDialog.setCanceledOnTouchOutside(true); 2367 mCopyDialog.findViewById(android.R.id.button1).setOnClickListener(this); 2368 mCopyDialog.setOnDismissListener(this); 2369 mCopyDialog.show(); 2370 } 2371 2372 @Override 2373 public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) { 2374 // Do nothing. 2375 return false; 2376 } 2377 2378 @Override 2379 public void onShowPress(MotionEvent e) { 2380 // Do nothing. 2381 } 2382 2383 @Override 2384 public boolean onSingleTapUp(MotionEvent e) { 2385 // Do nothing. 2386 return false; 2387 } 2388 2389 @Override 2390 public void onDismiss(DialogInterface dialog) { 2391 mCopyAddress = null; 2392 } 2393 2394 @Override 2395 public void onClick(View v) { 2396 // Copy this to the clipboard. 2397 ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService( 2398 Context.CLIPBOARD_SERVICE); 2399 clipboard.setPrimaryClip(ClipData.newPlainText("", mCopyAddress)); 2400 mCopyDialog.dismiss(); 2401 } 2402 } 2403