RecipientEditTextView.java revision 17c922958f2a9bad8b22675e7daf9b40bf6ef2ce
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.view.inputmethod.EditorInfo; 71import android.view.inputmethod.InputConnection; 72import android.widget.AdapterView; 73import android.widget.AdapterView.OnItemClickListener; 74import android.widget.Button; 75import android.widget.ListAdapter; 76import android.widget.ListPopupWindow; 77import android.widget.ListView; 78import android.widget.MultiAutoCompleteTextView; 79import android.widget.ScrollView; 80import android.widget.TextView; 81 82import java.util.ArrayList; 83import java.util.Arrays; 84import java.util.Collection; 85import java.util.Collections; 86import java.util.Comparator; 87import java.util.HashMap; 88import java.util.HashSet; 89import java.util.Set; 90import java.util.regex.Matcher; 91 92/** 93 * RecipientEditTextView is an auto complete text view for use with applications 94 * that use the new Chips UI for addressing a message to recipients. 95 */ 96public class RecipientEditTextView extends MultiAutoCompleteTextView implements 97 OnItemClickListener, Callback, RecipientAlternatesAdapter.OnCheckedItemChangedListener, 98 GestureDetector.OnGestureListener, OnDismissListener, OnClickListener, 99 TextView.OnEditorActionListener { 100 101 private static final char COMMIT_CHAR_COMMA = ','; 102 103 private static final char NAME_WRAPPER_CHAR = '"'; 104 105 private static final char COMMIT_CHAR_SEMICOLON = ';'; 106 107 private static final char COMMIT_CHAR_SPACE = ' '; 108 109 private static final String TAG = "RecipientEditTextView"; 110 111 private static int DISMISS = "dismiss".hashCode(); 112 113 private static final long DISMISS_DELAY = 300; 114 115 // TODO: get correct number/ algorithm from with UX. 116 // Visible for testing. 117 /*package*/ static final int CHIP_LIMIT = 2; 118 119 private static final int MAX_CHIPS_PARSED = 50; 120 121 private static int sSelectedTextColor = -1; 122 123 // Resources for displaying chips. 124 private Drawable mChipBackground = null; 125 126 private Drawable mChipDelete = null; 127 128 private Drawable mInvalidChipBackground; 129 130 private Drawable mChipBackgroundPressed; 131 132 private float mChipHeight; 133 134 private float mChipFontSize; 135 136 private float mLineSpacingExtra; 137 138 private int mChipPadding; 139 140 private Tokenizer mTokenizer; 141 142 private Validator mValidator; 143 144 private RecipientChip mSelectedChip; 145 146 private int mAlternatesLayout; 147 148 private Bitmap mDefaultContactPhoto; 149 150 private ImageSpan mMoreChip; 151 152 private TextView mMoreItem; 153 154 private final ArrayList<String> mPendingChips = new ArrayList<String>(); 155 156 private Handler mHandler; 157 158 private int mPendingChipsCount = 0; 159 160 private boolean mNoChips = false; 161 162 private ListPopupWindow mAlternatesPopup; 163 164 private ListPopupWindow mAddressPopup; 165 166 private ArrayList<RecipientChip> mTemporaryRecipients; 167 168 private ArrayList<RecipientChip> mRemovedSpans; 169 170 private boolean mShouldShrink = true; 171 172 // Chip copy fields. 173 private GestureDetector mGestureDetector; 174 175 private Dialog mCopyDialog; 176 177 private String mCopyAddress; 178 179 /** 180 * Used with {@link #mAlternatesPopup}. Handles clicks to alternate addresses for a 181 * selected chip. 182 */ 183 private OnItemClickListener mAlternatesListener; 184 185 private int mCheckedItem; 186 187 private TextWatcher mTextWatcher; 188 189 // Obtain the enclosing scroll view, if it exists, so that the view can be 190 // scrolled to show the last line of chips content. 191 private ScrollView mScrollView; 192 193 private boolean mTriedGettingScrollView; 194 195 private boolean mDragEnabled = false; 196 197 private final Runnable mAddTextWatcher = new Runnable() { 198 @Override 199 public void run() { 200 if (mTextWatcher == null) { 201 mTextWatcher = new RecipientTextWatcher(); 202 addTextChangedListener(mTextWatcher); 203 } 204 } 205 }; 206 207 private IndividualReplacementTask mIndividualReplacements; 208 209 private Runnable mHandlePendingChips = new Runnable() { 210 211 @Override 212 public void run() { 213 handlePendingChips(); 214 } 215 216 }; 217 218 private Runnable mDelayedShrink = new Runnable() { 219 220 @Override 221 public void run() { 222 shrink(); 223 } 224 225 }; 226 227 public RecipientEditTextView(Context context, AttributeSet attrs) { 228 super(context, attrs); 229 setChipDimensions(context, attrs); 230 if (sSelectedTextColor == -1) { 231 sSelectedTextColor = context.getResources().getColor(android.R.color.white); 232 } 233 mAlternatesPopup = new ListPopupWindow(context); 234 mAddressPopup = new ListPopupWindow(context); 235 mCopyDialog = new Dialog(context); 236 mAlternatesListener = new OnItemClickListener() { 237 @Override 238 public void onItemClick(AdapterView<?> adapterView,View view, int position, 239 long rowId) { 240 mAlternatesPopup.setOnItemClickListener(null); 241 replaceChip(mSelectedChip, ((RecipientAlternatesAdapter) adapterView.getAdapter()) 242 .getRecipientEntry(position)); 243 Message delayed = Message.obtain(mHandler, DISMISS); 244 delayed.obj = mAlternatesPopup; 245 mHandler.sendMessageDelayed(delayed, DISMISS_DELAY); 246 clearComposingText(); 247 } 248 }; 249 setInputType(getInputType() | InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS); 250 setOnItemClickListener(this); 251 setCustomSelectionActionModeCallback(this); 252 mHandler = new Handler() { 253 @Override 254 public void handleMessage(Message msg) { 255 if (msg.what == DISMISS) { 256 ((ListPopupWindow) msg.obj).dismiss(); 257 return; 258 } 259 super.handleMessage(msg); 260 } 261 }; 262 mTextWatcher = new RecipientTextWatcher(); 263 addTextChangedListener(mTextWatcher); 264 mGestureDetector = new GestureDetector(context, this); 265 setOnEditorActionListener(this); 266 } 267 268 @Override 269 public boolean onEditorAction(TextView view, int action, KeyEvent keyEvent) { 270 if (action == EditorInfo.IME_ACTION_DONE) { 271 if (commitDefault()) { 272 return true; 273 } 274 if (mSelectedChip != null) { 275 clearSelectedChip(); 276 return true; 277 } else if (focusNext()) { 278 return true; 279 } 280 } 281 return false; 282 } 283 284 @Override 285 public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 286 InputConnection connection = super.onCreateInputConnection(outAttrs); 287 int imeActions = outAttrs.imeOptions&EditorInfo.IME_MASK_ACTION; 288 if ((imeActions&EditorInfo.IME_ACTION_DONE) != 0) { 289 // clear the existing action 290 outAttrs.imeOptions ^= imeActions; 291 // set the DONE action 292 outAttrs.imeOptions |= EditorInfo.IME_ACTION_DONE; 293 } 294 if ((outAttrs.imeOptions&EditorInfo.IME_FLAG_NO_ENTER_ACTION) != 0) { 295 outAttrs.imeOptions &= ~EditorInfo.IME_FLAG_NO_ENTER_ACTION; 296 } 297 outAttrs.actionLabel = getContext().getString(R.string.done); 298 return connection; 299 } 300 301 /*package*/ RecipientChip getLastChip() { 302 RecipientChip last = null; 303 RecipientChip[] chips = getSortedRecipients(); 304 if (chips != null && chips.length > 0) { 305 last = chips[chips.length - 1]; 306 } 307 return last; 308 } 309 310 @Override 311 public void onSelectionChanged(int start, int end) { 312 // When selection changes, see if it is inside the chips area. 313 // If so, move the cursor back after the chips again. 314 RecipientChip last = getLastChip(); 315 if (last != null && start < getSpannable().getSpanEnd(last)) { 316 // Grab the last chip and set the cursor to after it. 317 setSelection(Math.min(getSpannable().getSpanEnd(last) + 1, getText().length())); 318 } 319 super.onSelectionChanged(start, end); 320 } 321 322 @Override 323 public void onRestoreInstanceState(Parcelable state) { 324 if (!TextUtils.isEmpty(getText())) { 325 super.onRestoreInstanceState(null); 326 } else { 327 super.onRestoreInstanceState(state); 328 } 329 } 330 331 @Override 332 public Parcelable onSaveInstanceState() { 333 // If the user changes orientation while they are editing, just roll back the selection. 334 clearSelectedChip(); 335 return super.onSaveInstanceState(); 336 } 337 338 /** 339 * Convenience method: Append the specified text slice to the TextView's 340 * display buffer, upgrading it to BufferType.EDITABLE if it was 341 * not already editable. Commas are excluded as they are added automatically 342 * by the view. 343 */ 344 @Override 345 public void append(CharSequence text, int start, int end) { 346 // We don't care about watching text changes while appending. 347 if (mTextWatcher != null) { 348 removeTextChangedListener(mTextWatcher); 349 } 350 super.append(text, start, end); 351 if (!TextUtils.isEmpty(text) && TextUtils.getTrimmedLength(text) > 0) { 352 String displayString = text.toString(); 353 int separatorPos = displayString.lastIndexOf(COMMIT_CHAR_COMMA); 354 // Verify that the separator pos is not within ""; if it is, look 355 // past the closing quote. If there is no comma past ", this string 356 // will resolve to an error chip. 357 if (separatorPos > -1) { 358 String parseDisplayString = displayString.substring(separatorPos); 359 int endQuotedTextPos = parseDisplayString.indexOf(NAME_WRAPPER_CHAR); 360 if (endQuotedTextPos > separatorPos) { 361 separatorPos = parseDisplayString.lastIndexOf(COMMIT_CHAR_COMMA, 362 endQuotedTextPos); 363 } 364 } 365 if (!TextUtils.isEmpty(displayString) 366 && TextUtils.getTrimmedLength(displayString) > 0) { 367 mPendingChipsCount++; 368 mPendingChips.add(text.toString()); 369 } 370 } 371 // Put a message on the queue to make sure we ALWAYS handle pending 372 // chips. 373 if (mPendingChipsCount > 0) { 374 postHandlePendingChips(); 375 } 376 mHandler.post(mAddTextWatcher); 377 } 378 379 @Override 380 public void onFocusChanged(boolean hasFocus, int direction, Rect previous) { 381 super.onFocusChanged(hasFocus, direction, previous); 382 if (!hasFocus) { 383 shrink(); 384 } else { 385 expand(); 386 } 387 } 388 389 @Override 390 public void performValidation() { 391 // Do nothing. Chips handles its own validation. 392 } 393 394 private void shrink() { 395 if (mTokenizer == null) { 396 return; 397 } 398 if (mSelectedChip != null 399 && mSelectedChip.getEntry().getContactId() != RecipientEntry.INVALID_CONTACT) { 400 clearSelectedChip(); 401 } else { 402 if (getWidth() <= 0) { 403 // We don't have the width yet which means the view hasn't been drawn yet 404 // and there is no reason to attempt to commit chips yet. 405 // This focus lost must be the result of an orientation change 406 // or an initial rendering. 407 // Re-post the shrink for later. 408 mHandler.removeCallbacks(mDelayedShrink); 409 mHandler.post(mDelayedShrink); 410 return; 411 } 412 // Reset any pending chips as they would have been handled 413 // when the field lost focus. 414 if (mPendingChipsCount > 0) { 415 postHandlePendingChips(); 416 } else { 417 Editable editable = getText(); 418 int end = getSelectionEnd(); 419 int start = mTokenizer.findTokenStart(editable, end); 420 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 421 if ((chips == null || chips.length == 0)) { 422 Editable text = getText(); 423 int whatEnd = mTokenizer.findTokenEnd(text, start); 424 // This token was already tokenized, so skip past the ending token. 425 if (whatEnd < text.length() && text.charAt(whatEnd) == ',') { 426 whatEnd++; 427 } 428 // In the middle of chip; treat this as an edit 429 // and commit the whole token. 430 int selEnd = getSelectionEnd(); 431 if (whatEnd != selEnd) { 432 handleEdit(start, whatEnd); 433 } else { 434 commitChip(start, end, editable); 435 } 436 } 437 } 438 mHandler.post(mAddTextWatcher); 439 } 440 createMoreChip(); 441 } 442 443 private void expand() { 444 removeMoreChip(); 445 setCursorVisible(true); 446 Editable text = getText(); 447 setSelection(text != null && text.length() > 0 ? text.length() : 0); 448 // If there are any temporary chips, try replacing them now that the user 449 // has expanded the field. 450 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0) { 451 new RecipientReplacementTask().execute(); 452 mTemporaryRecipients = null; 453 } 454 } 455 456 private CharSequence ellipsizeText(CharSequence text, TextPaint paint, float maxWidth) { 457 paint.setTextSize(mChipFontSize); 458 if (maxWidth <= 0 && Log.isLoggable(TAG, Log.DEBUG)) { 459 Log.d(TAG, "Max width is negative: " + maxWidth); 460 } 461 return TextUtils.ellipsize(text, paint, maxWidth, 462 TextUtils.TruncateAt.END); 463 } 464 465 private Bitmap createSelectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 466 // Ellipsize the text so that it takes AT MOST the entire width of the 467 // autocomplete text entry area. Make sure to leave space for padding 468 // on the sides. 469 int height = (int) mChipHeight; 470 int deleteWidth = height; 471 float[] widths = new float[1]; 472 paint.getTextWidths(" ", widths); 473 CharSequence ellipsizedText = ellipsizeText(createChipDisplayText(contact), paint, 474 calculateAvailableWidth(true) - deleteWidth - widths[0]); 475 476 // Make sure there is a minimum chip width so the user can ALWAYS 477 // tap a chip without difficulty. 478 int width = Math.max(deleteWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 479 ellipsizedText.length())) 480 + (mChipPadding * 2) + deleteWidth); 481 482 // Create the background of the chip. 483 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 484 Canvas canvas = new Canvas(tmpBitmap); 485 if (mChipBackgroundPressed != null) { 486 mChipBackgroundPressed.setBounds(0, 0, width, height); 487 mChipBackgroundPressed.draw(canvas); 488 paint.setColor(sSelectedTextColor); 489 // Vertically center the text in the chip. 490 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 491 getTextYOffset((String) ellipsizedText, paint, height), paint); 492 // Make the delete a square. 493 Rect backgroundPadding = new Rect(); 494 mChipBackgroundPressed.getPadding(backgroundPadding); 495 mChipDelete.setBounds(width - deleteWidth + backgroundPadding.left, 496 0 + backgroundPadding.top, 497 width - backgroundPadding.right, 498 height - backgroundPadding.bottom); 499 mChipDelete.draw(canvas); 500 } else { 501 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 502 } 503 return tmpBitmap; 504 } 505 506 507 private Bitmap createUnselectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 508 // Ellipsize the text so that it takes AT MOST the entire width of the 509 // autocomplete text entry area. Make sure to leave space for padding 510 // on the sides. 511 int height = (int) mChipHeight; 512 int iconWidth = height; 513 float[] widths = new float[1]; 514 paint.getTextWidths(" ", widths); 515 CharSequence ellipsizedText = ellipsizeText(createChipDisplayText(contact), paint, 516 calculateAvailableWidth(false) - iconWidth - widths[0]); 517 // Make sure there is a minimum chip width so the user can ALWAYS 518 // tap a chip without difficulty. 519 int width = Math.max(iconWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 520 ellipsizedText.length())) 521 + (mChipPadding * 2) + iconWidth); 522 523 // Create the background of the chip. 524 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 525 Canvas canvas = new Canvas(tmpBitmap); 526 Drawable background = getChipBackground(contact); 527 if (background != null) { 528 background.setBounds(0, 0, width, height); 529 background.draw(canvas); 530 531 // Don't draw photos for recipients that have been typed in. 532 if (contact.getContactId() != RecipientEntry.INVALID_CONTACT) { 533 byte[] photoBytes = contact.getPhotoBytes(); 534 // There may not be a photo yet if anything but the first contact address 535 // was selected. 536 if (photoBytes == null && contact.getPhotoThumbnailUri() != null) { 537 // TODO: cache this in the recipient entry? 538 ((BaseRecipientAdapter) getAdapter()).fetchPhoto(contact, contact 539 .getPhotoThumbnailUri()); 540 photoBytes = contact.getPhotoBytes(); 541 } 542 543 Bitmap photo; 544 if (photoBytes != null) { 545 photo = BitmapFactory.decodeByteArray(photoBytes, 0, photoBytes.length); 546 } else { 547 // TODO: can the scaled down default photo be cached? 548 photo = mDefaultContactPhoto; 549 } 550 // Draw the photo on the left side. 551 if (photo != null) { 552 RectF src = new RectF(0, 0, photo.getWidth(), photo.getHeight()); 553 Rect backgroundPadding = new Rect(); 554 mChipBackground.getPadding(backgroundPadding); 555 RectF dst = new RectF(width - iconWidth + backgroundPadding.left, 556 0 + backgroundPadding.top, 557 width - backgroundPadding.right, 558 height - backgroundPadding.bottom); 559 Matrix matrix = new Matrix(); 560 matrix.setRectToRect(src, dst, Matrix.ScaleToFit.FILL); 561 canvas.drawBitmap(photo, matrix, paint); 562 } 563 } else { 564 // Don't leave any space for the icon. It isn't being drawn. 565 iconWidth = 0; 566 } 567 paint.setColor(getContext().getResources().getColor(android.R.color.black)); 568 // Vertically center the text in the chip. 569 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 570 getTextYOffset((String)ellipsizedText, paint, height), paint); 571 } else { 572 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 573 } 574 return tmpBitmap; 575 } 576 577 /** 578 * Get the background drawable for a RecipientChip. 579 */ 580 // Visible for testing. 581 /*package*/ Drawable getChipBackground(RecipientEntry contact) { 582 return (mValidator != null && mValidator.isValid(contact.getDestination())) ? 583 mChipBackground : mInvalidChipBackground; 584 } 585 586 private float getTextYOffset(String text, TextPaint paint, int height) { 587 Rect bounds = new Rect(); 588 paint.getTextBounds(text, 0, text.length(), bounds); 589 int textHeight = bounds.bottom - bounds.top ; 590 return height - ((height - textHeight) / 2) - (int)paint.descent(); 591 } 592 593 private RecipientChip constructChipSpan(RecipientEntry contact, int offset, boolean pressed) 594 throws NullPointerException { 595 if (mChipBackground == null) { 596 throw new NullPointerException( 597 "Unable to render any chips as setChipDimensions was not called."); 598 } 599 Layout layout = getLayout(); 600 601 TextPaint paint = getPaint(); 602 float defaultSize = paint.getTextSize(); 603 int defaultColor = paint.getColor(); 604 605 Bitmap tmpBitmap; 606 if (pressed) { 607 tmpBitmap = createSelectedChip(contact, paint, layout); 608 609 } else { 610 tmpBitmap = createUnselectedChip(contact, paint, layout); 611 } 612 613 // Pass the full text, un-ellipsized, to the chip. 614 Drawable result = new BitmapDrawable(getResources(), tmpBitmap); 615 result.setBounds(0, 0, tmpBitmap.getWidth(), tmpBitmap.getHeight()); 616 RecipientChip recipientChip = new RecipientChip(result, contact, offset); 617 // Return text to the original size. 618 paint.setTextSize(defaultSize); 619 paint.setColor(defaultColor); 620 return recipientChip; 621 } 622 623 /** 624 * Calculate the bottom of the line the chip will be located on using: 625 * 1) which line the chip appears on 626 * 2) the height of a chip 627 * 3) padding built into the edit text view 628 */ 629 private int calculateOffsetFromBottom(int line) { 630 // Line offsets start at zero. 631 int actualLine = getLineCount() - (line + 1); 632 return -((actualLine * ((int) mChipHeight) + getPaddingBottom()) + getPaddingTop()) 633 + getDropDownVerticalOffset(); 634 } 635 636 /** 637 * Get the max amount of space a chip can take up. The formula takes into 638 * account the width of the EditTextView, any view padding, and padding 639 * that will be added to the chip. 640 */ 641 private float calculateAvailableWidth(boolean pressed) { 642 return getWidth() - getPaddingLeft() - getPaddingRight() - (mChipPadding * 2); 643 } 644 645 646 private void setChipDimensions(Context context, AttributeSet attrs) { 647 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.RecipientEditTextView, 0, 648 0); 649 Resources r = getContext().getResources(); 650 mChipBackground = a.getDrawable(R.styleable.RecipientEditTextView_chipBackground); 651 if (mChipBackground == null) { 652 mChipBackground = r.getDrawable(R.drawable.chip_background); 653 } 654 mChipBackgroundPressed = a 655 .getDrawable(R.styleable.RecipientEditTextView_chipBackgroundPressed); 656 if (mChipBackgroundPressed == null) { 657 mChipBackgroundPressed = r.getDrawable(R.drawable.chip_background_selected); 658 } 659 mChipDelete = a.getDrawable(R.styleable.RecipientEditTextView_chipDelete); 660 if (mChipDelete == null) { 661 mChipDelete = r.getDrawable(R.drawable.chip_delete); 662 } 663 mChipPadding = a.getDimensionPixelSize(R.styleable.RecipientEditTextView_chipPadding, -1); 664 if (mChipPadding == -1) { 665 mChipPadding = (int) r.getDimension(R.dimen.chip_padding); 666 } 667 mAlternatesLayout = a.getResourceId(R.styleable.RecipientEditTextView_chipAlternatesLayout, 668 -1); 669 if (mAlternatesLayout == -1) { 670 mAlternatesLayout = R.layout.chips_alternate_item; 671 } 672 673 mDefaultContactPhoto = BitmapFactory.decodeResource(r, R.drawable.ic_contact_picture); 674 675 mMoreItem = (TextView) LayoutInflater.from(getContext()).inflate(R.layout.more_item, null); 676 677 mChipHeight = a.getDimensionPixelSize(R.styleable.RecipientEditTextView_chipHeight, -1); 678 if (mChipHeight == -1) { 679 mChipHeight = r.getDimension(R.dimen.chip_height); 680 } 681 mChipFontSize = a.getDimensionPixelSize(R.styleable.RecipientEditTextView_chipFontSize, -1); 682 if (mChipFontSize == -1) { 683 mChipFontSize = r.getDimension(R.dimen.chip_text_size); 684 } 685 mInvalidChipBackground = a 686 .getDrawable(R.styleable.RecipientEditTextView_invalidChipBackground); 687 if (mInvalidChipBackground == null) { 688 mInvalidChipBackground = r.getDrawable(R.drawable.chip_background_invalid); 689 } 690 mLineSpacingExtra = context.getResources().getDimension(R.dimen.line_spacing_extra); 691 a.recycle(); 692 } 693 694 // Visible for testing. 695 /* package */ void setMoreItem(TextView moreItem) { 696 mMoreItem = moreItem; 697 } 698 699 700 // Visible for testing. 701 /* package */ void setChipBackground(Drawable chipBackground) { 702 mChipBackground = chipBackground; 703 } 704 705 // Visible for testing. 706 /* package */ void setChipHeight(int height) { 707 mChipHeight = height; 708 } 709 710 /** 711 * Set whether to shrink the recipients field such that at most 712 * one line of recipients chips are shown when the field loses 713 * focus. By default, the number of displayed recipients will be 714 * limited and a "more" chip will be shown when focus is lost. 715 * @param shrink 716 */ 717 public void setOnFocusListShrinkRecipients(boolean shrink) { 718 mShouldShrink = shrink; 719 } 720 721 @Override 722 public void onSizeChanged(int width, int height, int oldw, int oldh) { 723 super.onSizeChanged(width, height, oldw, oldh); 724 if (width != 0 && height != 0) { 725 if (mPendingChipsCount > 0) { 726 postHandlePendingChips(); 727 } else { 728 checkChipWidths(); 729 } 730 } 731 // Try to find the scroll view parent, if it exists. 732 if (mScrollView == null && !mTriedGettingScrollView) { 733 ViewParent parent = getParent(); 734 while (parent != null && !(parent instanceof ScrollView)) { 735 parent = parent.getParent(); 736 } 737 if (parent != null) { 738 mScrollView = (ScrollView) parent; 739 } 740 mTriedGettingScrollView = true; 741 } 742 } 743 744 private void postHandlePendingChips() { 745 mHandler.removeCallbacks(mHandlePendingChips); 746 mHandler.post(mHandlePendingChips); 747 } 748 749 private void checkChipWidths() { 750 // Check the widths of the associated chips. 751 RecipientChip[] chips = getSortedRecipients(); 752 if (chips != null) { 753 Rect bounds; 754 for (RecipientChip chip : chips) { 755 bounds = chip.getDrawable().getBounds(); 756 if (getWidth() > 0 && bounds.right - bounds.left > getWidth()) { 757 // Need to redraw that chip. 758 replaceChip(chip, chip.getEntry()); 759 } 760 } 761 } 762 } 763 764 // Visible for testing. 765 /*package*/ void handlePendingChips() { 766 if (getViewWidth() <= 0) { 767 // The widget has not been sized yet. 768 // This will be called as a result of onSizeChanged 769 // at a later point. 770 return; 771 } 772 if (mPendingChipsCount <= 0) { 773 return; 774 } 775 776 synchronized (mPendingChips) { 777 Editable editable = getText(); 778 // Tokenize! 779 if (mPendingChipsCount <= MAX_CHIPS_PARSED) { 780 for (int i = 0; i < mPendingChips.size(); i++) { 781 String current = mPendingChips.get(i); 782 int tokenStart = editable.toString().indexOf(current); 783 int tokenEnd = tokenStart + current.length(); 784 if (tokenStart >= 0) { 785 // When we have a valid token, include it with the token 786 // to the left. 787 if (tokenEnd < editable.length() - 2 788 && editable.charAt(tokenEnd) == COMMIT_CHAR_COMMA) { 789 tokenEnd++; 790 } 791 createReplacementChip(tokenStart, tokenEnd, editable); 792 } 793 mPendingChipsCount--; 794 } 795 sanitizeEnd(); 796 } else { 797 mNoChips = true; 798 } 799 800 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0 801 && mTemporaryRecipients.size() <= RecipientAlternatesAdapter.MAX_LOOKUPS) { 802 if (hasFocus() || mTemporaryRecipients.size() < CHIP_LIMIT) { 803 new RecipientReplacementTask().execute(); 804 mTemporaryRecipients = null; 805 } else { 806 // Create the "more" chip 807 mIndividualReplacements = new IndividualReplacementTask(); 808 mIndividualReplacements.execute(new ArrayList<RecipientChip>( 809 mTemporaryRecipients.subList(0, CHIP_LIMIT))); 810 811 createMoreChip(); 812 } 813 } else { 814 // There are too many recipients to look up, so just fall back 815 // to showing addresses for all of them. 816 mTemporaryRecipients = null; 817 createMoreChip(); 818 } 819 mPendingChipsCount = 0; 820 mPendingChips.clear(); 821 } 822 } 823 824 // Visible for testing. 825 /*package*/ int getViewWidth() { 826 return getWidth(); 827 } 828 829 /** 830 * Remove any characters after the last valid chip. 831 */ 832 // Visible for testing. 833 /*package*/ void sanitizeEnd() { 834 // Don't sanitize while we are waiting for pending chips to complete. 835 if (mPendingChipsCount > 0) { 836 return; 837 } 838 // Find the last chip; eliminate any commit characters after it. 839 RecipientChip[] chips = getSortedRecipients(); 840 if (chips != null && chips.length > 0) { 841 int end; 842 ImageSpan lastSpan; 843 mMoreChip = getMoreChip(); 844 if (mMoreChip != null) { 845 lastSpan = mMoreChip; 846 } else { 847 lastSpan = getLastChip(); 848 } 849 end = getSpannable().getSpanEnd(lastSpan); 850 Editable editable = getText(); 851 int length = editable.length(); 852 if (length > end) { 853 // See what characters occur after that and eliminate them. 854 if (Log.isLoggable(TAG, Log.DEBUG)) { 855 Log.d(TAG, "There were extra characters after the last tokenizable entry." 856 + editable); 857 } 858 editable.delete(end + 1, length); 859 } 860 } 861 } 862 863 /** 864 * Create a chip that represents just the email address of a recipient. At some later 865 * point, this chip will be attached to a real contact entry, if one exists. 866 */ 867 private void createReplacementChip(int tokenStart, int tokenEnd, Editable editable) { 868 if (alreadyHasChip(tokenStart, tokenEnd)) { 869 // There is already a chip present at this location. 870 // Don't recreate it. 871 return; 872 } 873 String token = editable.toString().substring(tokenStart, tokenEnd); 874 int commitCharIndex = token.trim().lastIndexOf(COMMIT_CHAR_COMMA); 875 if (commitCharIndex == token.length() - 1) { 876 token = token.substring(0, token.length() - 1); 877 } 878 RecipientEntry entry = createTokenizedEntry(token); 879 if (entry != null) { 880 String destText = createAddressText(entry); 881 // Always leave a blank space at the end of a chip. 882 int textLength = destText.length() - 1; 883 SpannableString chipText = new SpannableString(destText); 884 int end = getSelectionEnd(); 885 int start = mTokenizer != null ? mTokenizer.findTokenStart(getText(), end) : 0; 886 RecipientChip chip = null; 887 try { 888 if (!mNoChips) { 889 chip = constructChipSpan(entry, start, false); 890 chipText.setSpan(chip, 0, textLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 891 } 892 } catch (NullPointerException e) { 893 Log.e(TAG, e.getMessage(), e); 894 } 895 editable.replace(tokenStart, tokenEnd, chipText); 896 // Add this chip to the list of entries "to replace" 897 if (chip != null) { 898 if (mTemporaryRecipients == null) { 899 mTemporaryRecipients = new ArrayList<RecipientChip>(); 900 } 901 chip.setOriginalText(chipText.toString()); 902 mTemporaryRecipients.add(chip); 903 } 904 } 905 } 906 907 private static boolean isPhoneNumber(String number) { 908 // TODO: replace this function with libphonenumber's isPossibleNumber (see 909 // PhoneNumberUtil). One complication is that it requires the sender's region which 910 // comes from the CurrentCountryIso. For now, let's just do this simple match. 911 if (TextUtils.isEmpty(number)) { 912 return false; 913 } 914 915 Matcher match = Patterns.PHONE.matcher(number); 916 return match.matches(); 917 } 918 919 private RecipientEntry createTokenizedEntry(String token) { 920 if (TextUtils.isEmpty(token)) { 921 return null; 922 } 923 if (isPhoneQuery() && isPhoneNumber(token)) { 924 return RecipientEntry 925 .constructFakeEntry(token); 926 } 927 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(token); 928 String display = null; 929 if (isValid(token) && tokens != null && tokens.length > 0) { 930 // If we can get a name from tokenizing, then generate an entry from 931 // this. 932 display = tokens[0].getName(); 933 if (!TextUtils.isEmpty(display)) { 934 return RecipientEntry.constructGeneratedEntry(display, token); 935 } else { 936 display = tokens[0].getAddress(); 937 if (!TextUtils.isEmpty(display)) { 938 return RecipientEntry.constructFakeEntry(display); 939 } 940 } 941 } 942 // Unable to validate the token or to create a valid token from it. 943 // Just create a chip the user can edit. 944 String validatedToken = null; 945 if (mValidator != null && !mValidator.isValid(token)) { 946 // Try fixing up the entry using the validator. 947 validatedToken = mValidator.fixText(token).toString(); 948 if (!TextUtils.isEmpty(validatedToken)) { 949 if (validatedToken.contains(token)) { 950 // protect against the case of a validator with a null domain, 951 // which doesn't add a domain to the token 952 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(validatedToken); 953 if (tokenized.length > 0) { 954 validatedToken = tokenized[0].getAddress(); 955 } 956 } else { 957 // We ran into a case where the token was invalid and removed 958 // by the validator. In this case, just use the original token 959 // and let the user sort out the error chip. 960 validatedToken = null; 961 } 962 } 963 } 964 // Otherwise, fallback to just creating an editable email address chip. 965 return RecipientEntry 966 .constructFakeEntry(!TextUtils.isEmpty(validatedToken) ? validatedToken : token); 967 } 968 969 private boolean isValid(String text) { 970 return mValidator == null ? true : mValidator.isValid(text); 971 } 972 973 private String tokenizeAddress(String destination) { 974 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(destination); 975 if (tokens != null && tokens.length > 0) { 976 return tokens[0].getAddress(); 977 } 978 return destination; 979 } 980 981 @Override 982 public void setTokenizer(Tokenizer tokenizer) { 983 mTokenizer = tokenizer; 984 super.setTokenizer(mTokenizer); 985 } 986 987 @Override 988 public void setValidator(Validator validator) { 989 mValidator = validator; 990 super.setValidator(validator); 991 } 992 993 /** 994 * We cannot use the default mechanism for replaceText. Instead, 995 * we override onItemClickListener so we can get all the associated 996 * contact information including display text, address, and id. 997 */ 998 @Override 999 protected void replaceText(CharSequence text) { 1000 return; 1001 } 1002 1003 /** 1004 * Dismiss any selected chips when the back key is pressed. 1005 */ 1006 @Override 1007 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 1008 if (keyCode == KeyEvent.KEYCODE_BACK && mSelectedChip != null) { 1009 clearSelectedChip(); 1010 return true; 1011 } 1012 return super.onKeyPreIme(keyCode, event); 1013 } 1014 1015 /** 1016 * Monitor key presses in this view to see if the user types 1017 * any commit keys, which consist of ENTER, TAB, or DPAD_CENTER. 1018 * If the user has entered text that has contact matches and types 1019 * a commit key, create a chip from the topmost matching contact. 1020 * If the user has entered text that has no contact matches and types 1021 * a commit key, then create a chip from the text they have entered. 1022 */ 1023 @Override 1024 public boolean onKeyUp(int keyCode, KeyEvent event) { 1025 switch (keyCode) { 1026 case KeyEvent.KEYCODE_ENTER: 1027 case KeyEvent.KEYCODE_DPAD_CENTER: 1028 if (event.hasNoModifiers()) { 1029 if (commitDefault()) { 1030 return true; 1031 } 1032 if (mSelectedChip != null) { 1033 clearSelectedChip(); 1034 return true; 1035 } else if (focusNext()) { 1036 return true; 1037 } 1038 } 1039 break; 1040 case KeyEvent.KEYCODE_TAB: 1041 if (event.hasNoModifiers()) { 1042 if (mSelectedChip != null) { 1043 clearSelectedChip(); 1044 } else { 1045 commitDefault(); 1046 } 1047 if (focusNext()) { 1048 return true; 1049 } 1050 } 1051 break; 1052 } 1053 return super.onKeyUp(keyCode, event); 1054 } 1055 1056 private boolean focusNext() { 1057 View next = focusSearch(View.FOCUS_DOWN); 1058 if (next != null) { 1059 next.requestFocus(); 1060 return true; 1061 } 1062 return false; 1063 } 1064 1065 /** 1066 * Create a chip from the default selection. If the popup is showing, the 1067 * default is the first item in the popup suggestions list. Otherwise, it is 1068 * whatever the user had typed in. End represents where the the tokenizer 1069 * should search for a token to turn into a chip. 1070 * @return If a chip was created from a real contact. 1071 */ 1072 private boolean commitDefault() { 1073 // If there is no tokenizer, don't try to commit. 1074 if (mTokenizer == null) { 1075 return false; 1076 } 1077 Editable editable = getText(); 1078 int end = getSelectionEnd(); 1079 int start = mTokenizer.findTokenStart(editable, end); 1080 1081 if (shouldCreateChip(start, end)) { 1082 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 1083 // In the middle of chip; treat this as an edit 1084 // and commit the whole token. 1085 if (whatEnd != getSelectionEnd()) { 1086 handleEdit(start, whatEnd); 1087 return true; 1088 } 1089 return commitChip(start, end , editable); 1090 } 1091 return false; 1092 } 1093 1094 private void commitByCharacter() { 1095 // We can't possibly commit by character if we can't tokenize. 1096 if (mTokenizer == null) { 1097 return; 1098 } 1099 Editable editable = getText(); 1100 int end = getSelectionEnd(); 1101 int start = mTokenizer.findTokenStart(editable, end); 1102 if (shouldCreateChip(start, end)) { 1103 commitChip(start, end, editable); 1104 } 1105 setSelection(getText().length()); 1106 } 1107 1108 private boolean commitChip(int start, int end, Editable editable) { 1109 ListAdapter adapter = getAdapter(); 1110 if (adapter != null && adapter.getCount() > 0 && enoughToFilter() 1111 && end == getSelectionEnd() && !isPhoneQuery()) { 1112 // choose the first entry. 1113 submitItemAtPosition(0); 1114 dismissDropDown(); 1115 return true; 1116 } else { 1117 int tokenEnd = mTokenizer.findTokenEnd(editable, start); 1118 if (editable.length() > tokenEnd + 1) { 1119 char charAt = editable.charAt(tokenEnd + 1); 1120 if (charAt == COMMIT_CHAR_COMMA || charAt == COMMIT_CHAR_SEMICOLON) { 1121 tokenEnd++; 1122 } 1123 } 1124 String text = editable.toString().substring(start, tokenEnd).trim(); 1125 clearComposingText(); 1126 if (text != null && text.length() > 0 && !text.equals(" ")) { 1127 RecipientEntry entry = createTokenizedEntry(text); 1128 if (entry != null) { 1129 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1130 CharSequence chipText = createChip(entry, false); 1131 if (chipText != null && start > -1 && end > -1) { 1132 editable.replace(start, end, chipText); 1133 } 1134 } 1135 // Only dismiss the dropdown if it is related to the text we 1136 // just committed. 1137 // For paste, it may not be as there are possibly multiple 1138 // tokens being added. 1139 if (end == getSelectionEnd()) { 1140 dismissDropDown(); 1141 } 1142 sanitizeBetween(); 1143 return true; 1144 } 1145 } 1146 return false; 1147 } 1148 1149 // Visible for testing. 1150 /* package */ void sanitizeBetween() { 1151 // Don't sanitize while we are waiting for content to chipify. 1152 if (mPendingChipsCount > 0) { 1153 return; 1154 } 1155 // Find the last chip. 1156 RecipientChip[] recips = getSortedRecipients(); 1157 if (recips != null && recips.length > 0) { 1158 RecipientChip last = recips[recips.length - 1]; 1159 RecipientChip beforeLast = null; 1160 if (recips.length > 1) { 1161 beforeLast = recips[recips.length - 2]; 1162 } 1163 int startLooking = 0; 1164 int end = getSpannable().getSpanStart(last); 1165 if (beforeLast != null) { 1166 startLooking = getSpannable().getSpanEnd(beforeLast); 1167 Editable text = getText(); 1168 if (startLooking == -1 || startLooking > text.length() - 1) { 1169 // There is nothing after this chip. 1170 return; 1171 } 1172 if (text.charAt(startLooking) == ' ') { 1173 startLooking++; 1174 } 1175 } 1176 if (startLooking >= 0 && end >= 0 && startLooking < end) { 1177 getText().delete(startLooking, end); 1178 } 1179 } 1180 } 1181 1182 private boolean shouldCreateChip(int start, int end) { 1183 return !mNoChips && hasFocus() && enoughToFilter() && !alreadyHasChip(start, end); 1184 } 1185 1186 private boolean alreadyHasChip(int start, int end) { 1187 if (mNoChips) { 1188 return true; 1189 } 1190 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 1191 if ((chips == null || chips.length == 0)) { 1192 return false; 1193 } 1194 return true; 1195 } 1196 1197 private void handleEdit(int start, int end) { 1198 if (start == -1 || end == -1) { 1199 // This chip no longer exists in the field. 1200 dismissDropDown(); 1201 return; 1202 } 1203 // This is in the middle of a chip, so select out the whole chip 1204 // and commit it. 1205 Editable editable = getText(); 1206 setSelection(end); 1207 String text = getText().toString().substring(start, end); 1208 if (!TextUtils.isEmpty(text)) { 1209 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 1210 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1211 CharSequence chipText = createChip(entry, false); 1212 int selEnd = getSelectionEnd(); 1213 if (chipText != null && start > -1 && selEnd > -1) { 1214 editable.replace(start, selEnd, chipText); 1215 } 1216 } 1217 dismissDropDown(); 1218 } 1219 1220 /** 1221 * If there is a selected chip, delegate the key events 1222 * to the selected chip. 1223 */ 1224 @Override 1225 public boolean onKeyDown(int keyCode, KeyEvent event) { 1226 if (mSelectedChip != null && keyCode == KeyEvent.KEYCODE_DEL) { 1227 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1228 mAlternatesPopup.dismiss(); 1229 } 1230 removeChip(mSelectedChip); 1231 } 1232 1233 if (keyCode == KeyEvent.KEYCODE_ENTER && event.hasNoModifiers()) { 1234 return true; 1235 } 1236 1237 return super.onKeyDown(keyCode, event); 1238 } 1239 1240 // Visible for testing. 1241 /* package */ Spannable getSpannable() { 1242 return getText(); 1243 } 1244 1245 private int getChipStart(RecipientChip chip) { 1246 return getSpannable().getSpanStart(chip); 1247 } 1248 1249 private int getChipEnd(RecipientChip chip) { 1250 return getSpannable().getSpanEnd(chip); 1251 } 1252 1253 /** 1254 * Instead of filtering on the entire contents of the edit box, 1255 * this subclass method filters on the range from 1256 * {@link Tokenizer#findTokenStart} to {@link #getSelectionEnd} 1257 * if the length of that range meets or exceeds {@link #getThreshold} 1258 * and makes sure that the range is not already a Chip. 1259 */ 1260 @Override 1261 protected void performFiltering(CharSequence text, int keyCode) { 1262 if (enoughToFilter() && !isCompletedToken(text)) { 1263 int end = getSelectionEnd(); 1264 int start = mTokenizer.findTokenStart(text, end); 1265 // If this is a RecipientChip, don't filter 1266 // on its contents. 1267 Spannable span = getSpannable(); 1268 RecipientChip[] chips = span.getSpans(start, end, RecipientChip.class); 1269 if (chips != null && chips.length > 0) { 1270 return; 1271 } 1272 } 1273 super.performFiltering(text, keyCode); 1274 } 1275 1276 // Visible for testing. 1277 /*package*/ boolean isCompletedToken(CharSequence text) { 1278 if (TextUtils.isEmpty(text)) { 1279 return false; 1280 } 1281 // Check to see if this is a completed token before filtering. 1282 int end = text.length(); 1283 int start = mTokenizer.findTokenStart(text, end); 1284 String token = text.toString().substring(start, end).trim(); 1285 if (!TextUtils.isEmpty(token)) { 1286 char atEnd = token.charAt(token.length() - 1); 1287 return atEnd == COMMIT_CHAR_COMMA || atEnd == COMMIT_CHAR_SEMICOLON; 1288 } 1289 return false; 1290 } 1291 1292 private void clearSelectedChip() { 1293 if (mSelectedChip != null) { 1294 unselectChip(mSelectedChip); 1295 mSelectedChip = null; 1296 } 1297 setCursorVisible(true); 1298 } 1299 1300 /** 1301 * Monitor touch events in the RecipientEditTextView. 1302 * If the view does not have focus, any tap on the view 1303 * will just focus the view. If the view has focus, determine 1304 * if the touch target is a recipient chip. If it is and the chip 1305 * is not selected, select it and clear any other selected chips. 1306 * If it isn't, then select that chip. 1307 */ 1308 @Override 1309 public boolean onTouchEvent(MotionEvent event) { 1310 if (!isFocused()) { 1311 // Ignore any chip taps until this view is focused. 1312 return super.onTouchEvent(event); 1313 } 1314 boolean handled = super.onTouchEvent(event); 1315 int action = event.getAction(); 1316 boolean chipWasSelected = false; 1317 if (mSelectedChip == null) { 1318 mGestureDetector.onTouchEvent(event); 1319 } 1320 if (mCopyAddress == null && action == MotionEvent.ACTION_UP) { 1321 float x = event.getX(); 1322 float y = event.getY(); 1323 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 1324 RecipientChip currentChip = findChip(offset); 1325 if (currentChip != null) { 1326 if (action == MotionEvent.ACTION_UP) { 1327 if (mSelectedChip != null && mSelectedChip != currentChip) { 1328 clearSelectedChip(); 1329 mSelectedChip = selectChip(currentChip); 1330 } else if (mSelectedChip == null) { 1331 setSelection(getText().length()); 1332 commitDefault(); 1333 mSelectedChip = selectChip(currentChip); 1334 } else { 1335 onClick(mSelectedChip, offset, x, y); 1336 } 1337 } 1338 chipWasSelected = true; 1339 handled = true; 1340 } else if (mSelectedChip != null 1341 && mSelectedChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1342 chipWasSelected = true; 1343 } 1344 } 1345 if (action == MotionEvent.ACTION_UP && !chipWasSelected) { 1346 clearSelectedChip(); 1347 } 1348 return handled; 1349 } 1350 1351 private void scrollLineIntoView(int line) { 1352 if (mScrollView != null) { 1353 mScrollView.scrollBy(0, calculateOffsetFromBottom(line)); 1354 } 1355 } 1356 1357 private void showAlternates(RecipientChip currentChip, ListPopupWindow alternatesPopup, 1358 int width, Context context) { 1359 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1360 int bottom; 1361 if (line == getLineCount() -1) { 1362 bottom = 0; 1363 } else { 1364 bottom = -(int) ((mChipHeight + (2 * mLineSpacingExtra)) * (Math.abs(getLineCount() - 1 1365 - line))); 1366 } 1367 // Align the alternates popup with the left side of the View, 1368 // regardless of the position of the chip tapped. 1369 alternatesPopup.setWidth(width); 1370 alternatesPopup.setAnchorView(this); 1371 alternatesPopup.setVerticalOffset(bottom); 1372 alternatesPopup.setAdapter(createAlternatesAdapter(currentChip)); 1373 alternatesPopup.setOnItemClickListener(mAlternatesListener); 1374 // Clear the checked item. 1375 mCheckedItem = -1; 1376 alternatesPopup.show(); 1377 ListView listView = alternatesPopup.getListView(); 1378 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1379 // Checked item would be -1 if the adapter has not 1380 // loaded the view that should be checked yet. The 1381 // variable will be set correctly when onCheckedItemChanged 1382 // is called in a separate thread. 1383 if (mCheckedItem != -1) { 1384 listView.setItemChecked(mCheckedItem, true); 1385 mCheckedItem = -1; 1386 } 1387 } 1388 1389 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 1390 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 1391 mAlternatesLayout, ((BaseRecipientAdapter)getAdapter()).getQueryType(), this); 1392 } 1393 1394 private ListAdapter createSingleAddressAdapter(RecipientChip currentChip) { 1395 return new SingleRecipientArrayAdapter(getContext(), mAlternatesLayout, currentChip 1396 .getEntry()); 1397 } 1398 1399 @Override 1400 public void onCheckedItemChanged(int position) { 1401 ListView listView = mAlternatesPopup.getListView(); 1402 if (listView != null && listView.getCheckedItemCount() == 0) { 1403 listView.setItemChecked(position, true); 1404 } 1405 mCheckedItem = position; 1406 } 1407 1408 // TODO: This algorithm will need a lot of tweaking after more people have used 1409 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 1410 // what comes before the finger. 1411 private int putOffsetInRange(int o) { 1412 int offset = o; 1413 Editable text = getText(); 1414 int length = text.length(); 1415 // Remove whitespace from end to find "real end" 1416 int realLength = length; 1417 for (int i = length - 1; i >= 0; i--) { 1418 if (text.charAt(i) == ' ') { 1419 realLength--; 1420 } else { 1421 break; 1422 } 1423 } 1424 1425 // If the offset is beyond or at the end of the text, 1426 // leave it alone. 1427 if (offset >= realLength) { 1428 return offset; 1429 } 1430 Editable editable = getText(); 1431 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 1432 // Keep walking backward! 1433 offset--; 1434 } 1435 return offset; 1436 } 1437 1438 private int findText(Editable text, int offset) { 1439 if (text.charAt(offset) != ' ') { 1440 return offset; 1441 } 1442 return -1; 1443 } 1444 1445 private RecipientChip findChip(int offset) { 1446 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1447 // Find the chip that contains this offset. 1448 for (int i = 0; i < chips.length; i++) { 1449 RecipientChip chip = chips[i]; 1450 int start = getChipStart(chip); 1451 int end = getChipEnd(chip); 1452 if (offset >= start && offset <= end) { 1453 return chip; 1454 } 1455 } 1456 return null; 1457 } 1458 1459 // Visible for testing. 1460 // Use this method to generate text to add to the list of addresses. 1461 /* package */String createAddressText(RecipientEntry entry) { 1462 String display = entry.getDisplayName(); 1463 String address = entry.getDestination(); 1464 if (TextUtils.isEmpty(display) || TextUtils.equals(display, address)) { 1465 display = null; 1466 } 1467 String trimmedDisplayText; 1468 if (isPhoneQuery() && isPhoneNumber(address)) { 1469 trimmedDisplayText = address.trim(); 1470 } else { 1471 if (address != null) { 1472 // Tokenize out the address in case the address already 1473 // contained the username as well. 1474 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(address); 1475 if (tokenized != null && tokenized.length > 0) { 1476 address = tokenized[0].getAddress(); 1477 } 1478 } 1479 Rfc822Token token = new Rfc822Token(display, address, null); 1480 trimmedDisplayText = token.toString().trim(); 1481 } 1482 int index = trimmedDisplayText.indexOf(","); 1483 return mTokenizer != null && !TextUtils.isEmpty(trimmedDisplayText) 1484 && index < trimmedDisplayText.length() - 1 ? (String) mTokenizer 1485 .terminateToken(trimmedDisplayText) : trimmedDisplayText; 1486 } 1487 1488 // Visible for testing. 1489 // Use this method to generate text to display in a chip. 1490 /*package*/ String createChipDisplayText(RecipientEntry entry) { 1491 String display = entry.getDisplayName(); 1492 String address = entry.getDestination(); 1493 if (TextUtils.isEmpty(display) || TextUtils.equals(display, address)) { 1494 display = null; 1495 } 1496 if (address != null && !(isPhoneQuery() && isPhoneNumber(address))) { 1497 // Tokenize out the address in case the address already 1498 // contained the username as well. 1499 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(address); 1500 if (tokenized != null && tokenized.length > 0) { 1501 address = tokenized[0].getAddress(); 1502 } 1503 } 1504 if (!TextUtils.isEmpty(display)) { 1505 return display; 1506 } else if (!TextUtils.isEmpty(address)){ 1507 return address; 1508 } else { 1509 return new Rfc822Token(display, address, null).toString(); 1510 } 1511 } 1512 1513 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 1514 String displayText = createAddressText(entry); 1515 if (TextUtils.isEmpty(displayText)) { 1516 return null; 1517 } 1518 SpannableString chipText = null; 1519 // Always leave a blank space at the end of a chip. 1520 int end = getSelectionEnd(); 1521 int start = mTokenizer.findTokenStart(getText(), end); 1522 int textLength = displayText.length()-1; 1523 chipText = new SpannableString(displayText); 1524 if (!mNoChips) { 1525 try { 1526 RecipientChip chip = constructChipSpan(entry, start, pressed); 1527 chipText.setSpan(chip, 0, textLength, 1528 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1529 chip.setOriginalText(chipText.toString()); 1530 } catch (NullPointerException e) { 1531 Log.e(TAG, e.getMessage(), e); 1532 return null; 1533 } 1534 } 1535 return chipText; 1536 } 1537 1538 /** 1539 * When an item in the suggestions list has been clicked, create a chip from the 1540 * contact information of the selected item. 1541 */ 1542 @Override 1543 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1544 submitItemAtPosition(position); 1545 } 1546 1547 private void submitItemAtPosition(int position) { 1548 RecipientEntry entry = createValidatedEntry( 1549 (RecipientEntry)getAdapter().getItem(position)); 1550 if (entry == null) { 1551 return; 1552 } 1553 clearComposingText(); 1554 1555 int end = getSelectionEnd(); 1556 int start = mTokenizer.findTokenStart(getText(), end); 1557 1558 Editable editable = getText(); 1559 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1560 CharSequence chip = createChip(entry, false); 1561 if (chip != null && start >= 0 && end >= 0) { 1562 editable.replace(start, end, chip); 1563 } 1564 sanitizeBetween(); 1565 } 1566 1567 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1568 if (item == null) { 1569 return null; 1570 } 1571 final RecipientEntry entry; 1572 // If the display name and the address are the same, or if this is a 1573 // valid contact, but the destination is invalid, then make this a fake 1574 // recipient that is editable. 1575 String destination = item.getDestination(); 1576 if (RecipientEntry.isCreatedRecipient(item.getContactId()) 1577 && (TextUtils.isEmpty(item.getDisplayName()) 1578 || TextUtils.equals(item.getDisplayName(), destination) 1579 || (mValidator != null && !mValidator.isValid(destination)))) { 1580 entry = RecipientEntry.constructFakeEntry(destination); 1581 } else { 1582 entry = item; 1583 } 1584 return entry; 1585 } 1586 1587 /** Returns a collection of contact Id for each chip inside this View. */ 1588 /* package */ Collection<Long> getContactIds() { 1589 final Set<Long> result = new HashSet<Long>(); 1590 RecipientChip[] chips = getSortedRecipients(); 1591 if (chips != null) { 1592 for (RecipientChip chip : chips) { 1593 result.add(chip.getContactId()); 1594 } 1595 } 1596 return result; 1597 } 1598 1599 1600 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1601 /* package */ Collection<Long> getDataIds() { 1602 final Set<Long> result = new HashSet<Long>(); 1603 RecipientChip [] chips = getSortedRecipients(); 1604 if (chips != null) { 1605 for (RecipientChip chip : chips) { 1606 result.add(chip.getDataId()); 1607 } 1608 } 1609 return result; 1610 } 1611 1612 // Visible for testing. 1613 /* package */RecipientChip[] getSortedRecipients() { 1614 RecipientChip[] recips = getSpannable() 1615 .getSpans(0, getText().length(), RecipientChip.class); 1616 ArrayList<RecipientChip> recipientsList = new ArrayList<RecipientChip>(Arrays 1617 .asList(recips)); 1618 final Spannable spannable = getSpannable(); 1619 Collections.sort(recipientsList, new Comparator<RecipientChip>() { 1620 1621 @Override 1622 public int compare(RecipientChip first, RecipientChip second) { 1623 int firstStart = spannable.getSpanStart(first); 1624 int secondStart = spannable.getSpanStart(second); 1625 if (firstStart < secondStart) { 1626 return -1; 1627 } else if (firstStart > secondStart) { 1628 return 1; 1629 } else { 1630 return 0; 1631 } 1632 } 1633 }); 1634 return recipientsList.toArray(new RecipientChip[recipientsList.size()]); 1635 } 1636 1637 @Override 1638 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1639 return false; 1640 } 1641 1642 @Override 1643 public void onDestroyActionMode(ActionMode mode) { 1644 } 1645 1646 @Override 1647 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1648 return false; 1649 } 1650 1651 /** 1652 * No chips are selectable. 1653 */ 1654 @Override 1655 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1656 return false; 1657 } 1658 1659 // Visible for testing. 1660 /* package */ImageSpan getMoreChip() { 1661 MoreImageSpan[] moreSpans = getSpannable().getSpans(0, getText().length(), 1662 MoreImageSpan.class); 1663 return moreSpans != null && moreSpans.length > 0 ? moreSpans[0] : null; 1664 } 1665 1666 private MoreImageSpan createMoreSpan(int count) { 1667 String moreText = String.format(mMoreItem.getText().toString(), count); 1668 TextPaint morePaint = new TextPaint(getPaint()); 1669 morePaint.setTextSize(mMoreItem.getTextSize()); 1670 morePaint.setColor(mMoreItem.getCurrentTextColor()); 1671 int width = (int)morePaint.measureText(moreText) + mMoreItem.getPaddingLeft() 1672 + mMoreItem.getPaddingRight(); 1673 int height = getLineHeight(); 1674 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1675 Canvas canvas = new Canvas(drawable); 1676 int adjustedHeight = height; 1677 Layout layout = getLayout(); 1678 if (layout != null) { 1679 adjustedHeight -= layout.getLineDescent(0); 1680 } 1681 canvas.drawText(moreText, 0, moreText.length(), 0, adjustedHeight, morePaint); 1682 1683 Drawable result = new BitmapDrawable(getResources(), drawable); 1684 result.setBounds(0, 0, width, height); 1685 return new MoreImageSpan(result); 1686 } 1687 1688 // Visible for testing. 1689 /*package*/ void createMoreChipPlainText() { 1690 // Take the first <= CHIP_LIMIT addresses and get to the end of the second one. 1691 Editable text = getText(); 1692 int start = 0; 1693 int end = start; 1694 for (int i = 0; i < CHIP_LIMIT; i++) { 1695 end = movePastTerminators(mTokenizer.findTokenEnd(text, start)); 1696 start = end; // move to the next token and get its end. 1697 } 1698 // Now, count total addresses. 1699 start = 0; 1700 int tokenCount = countTokens(text); 1701 MoreImageSpan moreSpan = createMoreSpan(tokenCount - CHIP_LIMIT); 1702 SpannableString chipText = new SpannableString(text.subSequence(end, text.length())); 1703 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1704 text.replace(end, text.length(), chipText); 1705 mMoreChip = moreSpan; 1706 } 1707 1708 // Visible for testing. 1709 /* package */int countTokens(Editable text) { 1710 int tokenCount = 0; 1711 int start = 0; 1712 while (start < text.length()) { 1713 start = movePastTerminators(mTokenizer.findTokenEnd(text, start)); 1714 tokenCount++; 1715 if (start >= text.length()) { 1716 break; 1717 } 1718 } 1719 return tokenCount; 1720 } 1721 1722 /** 1723 * Create the more chip. The more chip is text that replaces any chips that 1724 * do not fit in the pre-defined available space when the 1725 * RecipientEditTextView loses focus. 1726 */ 1727 // Visible for testing. 1728 /* package */ void createMoreChip() { 1729 if (mNoChips) { 1730 createMoreChipPlainText(); 1731 return; 1732 } 1733 1734 if (!mShouldShrink) { 1735 return; 1736 } 1737 1738 ImageSpan[] tempMore = getSpannable().getSpans(0, getText().length(), MoreImageSpan.class); 1739 if (tempMore.length > 0) { 1740 getSpannable().removeSpan(tempMore[0]); 1741 } 1742 RecipientChip[] recipients = getSortedRecipients(); 1743 1744 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1745 mMoreChip = null; 1746 return; 1747 } 1748 Spannable spannable = getSpannable(); 1749 int numRecipients = recipients.length; 1750 int overage = numRecipients - CHIP_LIMIT; 1751 MoreImageSpan moreSpan = createMoreSpan(overage); 1752 mRemovedSpans = new ArrayList<RecipientChip>(); 1753 int totalReplaceStart = 0; 1754 int totalReplaceEnd = 0; 1755 Editable text = getText(); 1756 for (int i = numRecipients - overage; i < recipients.length; i++) { 1757 mRemovedSpans.add(recipients[i]); 1758 if (i == numRecipients - overage) { 1759 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1760 } 1761 if (i == recipients.length - 1) { 1762 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1763 } 1764 if (mTemporaryRecipients == null || !mTemporaryRecipients.contains(recipients[i])) { 1765 int spanStart = spannable.getSpanStart(recipients[i]); 1766 int spanEnd = spannable.getSpanEnd(recipients[i]); 1767 recipients[i].setOriginalText(text.toString().substring(spanStart, spanEnd)); 1768 } 1769 spannable.removeSpan(recipients[i]); 1770 } 1771 if (totalReplaceEnd < text.length()) { 1772 totalReplaceEnd = text.length(); 1773 } 1774 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1775 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1776 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1777 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1778 text.replace(start, end, chipText); 1779 mMoreChip = moreSpan; 1780 } 1781 1782 /** 1783 * Replace the more chip, if it exists, with all of the recipient chips it had 1784 * replaced when the RecipientEditTextView gains focus. 1785 */ 1786 // Visible for testing. 1787 /*package*/ void removeMoreChip() { 1788 if (mMoreChip != null) { 1789 Spannable span = getSpannable(); 1790 span.removeSpan(mMoreChip); 1791 mMoreChip = null; 1792 // Re-add the spans that were removed. 1793 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1794 // Recreate each removed span. 1795 RecipientChip[] recipients = getSortedRecipients(); 1796 // Start the search for tokens after the last currently visible 1797 // chip. 1798 if (recipients == null || recipients.length == 0) { 1799 return; 1800 } 1801 int end = span.getSpanEnd(recipients[recipients.length - 1]); 1802 Editable editable = getText(); 1803 for (RecipientChip chip : mRemovedSpans) { 1804 int chipStart; 1805 int chipEnd; 1806 String token; 1807 // Need to find the location of the chip, again. 1808 token = (String) chip.getOriginalText(); 1809 // As we find the matching recipient for the remove spans, 1810 // reduce the size of the string we need to search. 1811 // That way, if there are duplicates, we always find the correct 1812 // recipient. 1813 chipStart = editable.toString().indexOf(token, end); 1814 end = chipEnd = Math.min(editable.length(), chipStart + token.length()); 1815 // Only set the span if we found a matching token. 1816 if (chipStart != -1) { 1817 editable.setSpan(chip, chipStart, chipEnd, 1818 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1819 } 1820 } 1821 mRemovedSpans.clear(); 1822 } 1823 } 1824 } 1825 1826 /** 1827 * Show specified chip as selected. If the RecipientChip is just an email address, 1828 * selecting the chip will take the contents of the chip and place it at 1829 * the end of the RecipientEditTextView for inline editing. If the 1830 * RecipientChip is a complete contact, then selecting the chip 1831 * will change the background color of the chip, show the delete icon, 1832 * and a popup window with the address in use highlighted and any other 1833 * alternate addresses for the contact. 1834 * @param currentChip Chip to select. 1835 * @return A RecipientChip in the selected state or null if the chip 1836 * just contained an email address. 1837 */ 1838 private RecipientChip selectChip(RecipientChip currentChip) { 1839 if (currentChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1840 CharSequence text = currentChip.getValue(); 1841 Editable editable = getText(); 1842 removeChip(currentChip); 1843 editable.append(text); 1844 setCursorVisible(true); 1845 setSelection(editable.length()); 1846 return new RecipientChip(null, RecipientEntry.constructFakeEntry((String) text), -1); 1847 } else if (currentChip.getContactId() == RecipientEntry.GENERATED_CONTACT) { 1848 int start = getChipStart(currentChip); 1849 int end = getChipEnd(currentChip); 1850 getSpannable().removeSpan(currentChip); 1851 RecipientChip newChip; 1852 try { 1853 if (mNoChips) { 1854 return null; 1855 } 1856 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1857 } catch (NullPointerException e) { 1858 Log.e(TAG, e.getMessage(), e); 1859 return null; 1860 } 1861 Editable editable = getText(); 1862 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1863 if (start == -1 || end == -1) { 1864 Log.d(TAG, "The chip being selected no longer exists but should."); 1865 } else { 1866 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1867 } 1868 newChip.setSelected(true); 1869 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1870 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1871 } 1872 showAddress(newChip, mAddressPopup, getWidth(), getContext()); 1873 setCursorVisible(false); 1874 return newChip; 1875 } else { 1876 int start = getChipStart(currentChip); 1877 int end = getChipEnd(currentChip); 1878 getSpannable().removeSpan(currentChip); 1879 RecipientChip newChip; 1880 try { 1881 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1882 } catch (NullPointerException e) { 1883 Log.e(TAG, e.getMessage(), e); 1884 return null; 1885 } 1886 Editable editable = getText(); 1887 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1888 if (start == -1 || end == -1) { 1889 Log.d(TAG, "The chip being selected no longer exists but should."); 1890 } else { 1891 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1892 } 1893 newChip.setSelected(true); 1894 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1895 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1896 } 1897 showAlternates(newChip, mAlternatesPopup, getWidth(), getContext()); 1898 setCursorVisible(false); 1899 return newChip; 1900 } 1901 } 1902 1903 1904 private void showAddress(final RecipientChip currentChip, final ListPopupWindow popup, 1905 int width, Context context) { 1906 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1907 int bottom = calculateOffsetFromBottom(line); 1908 // Align the alternates popup with the left side of the View, 1909 // regardless of the position of the chip tapped. 1910 popup.setWidth(width); 1911 popup.setAnchorView(this); 1912 popup.setVerticalOffset(bottom); 1913 popup.setAdapter(createSingleAddressAdapter(currentChip)); 1914 popup.setOnItemClickListener(new OnItemClickListener() { 1915 @Override 1916 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1917 unselectChip(currentChip); 1918 popup.dismiss(); 1919 } 1920 }); 1921 popup.show(); 1922 ListView listView = popup.getListView(); 1923 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1924 listView.setItemChecked(0, true); 1925 } 1926 1927 /** 1928 * Remove selection from this chip. Unselecting a RecipientChip will render 1929 * the chip without a delete icon and with an unfocused background. This is 1930 * called when the RecipientChip no longer has focus. 1931 */ 1932 private void unselectChip(RecipientChip chip) { 1933 int start = getChipStart(chip); 1934 int end = getChipEnd(chip); 1935 Editable editable = getText(); 1936 mSelectedChip = null; 1937 if (start == -1 || end == -1) { 1938 Log.w(TAG, "The chip doesn't exist or may be a chip a user was editing"); 1939 setSelection(editable.length()); 1940 commitDefault(); 1941 } else { 1942 getSpannable().removeSpan(chip); 1943 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1944 editable.removeSpan(chip); 1945 try { 1946 if (!mNoChips) { 1947 editable.setSpan(constructChipSpan(chip.getEntry(), start, false), start, end, 1948 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1949 } 1950 } catch (NullPointerException e) { 1951 Log.e(TAG, e.getMessage(), e); 1952 } 1953 } 1954 setCursorVisible(true); 1955 setSelection(editable.length()); 1956 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1957 mAlternatesPopup.dismiss(); 1958 } 1959 } 1960 1961 /** 1962 * Return whether a touch event was inside the delete target of 1963 * a selected chip. It is in the delete target if: 1964 * 1) the x and y points of the event are within the 1965 * delete assset. 1966 * 2) the point tapped would have caused a cursor to appear 1967 * right after the selected chip. 1968 * @return boolean 1969 */ 1970 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1971 // Figure out the bounds of this chip and whether or not 1972 // the user clicked in the X portion. 1973 return chip.isSelected() && offset == getChipEnd(chip); 1974 } 1975 1976 /** 1977 * Remove the chip and any text associated with it from the RecipientEditTextView. 1978 */ 1979 // Visible for testing. 1980 /*pacakge*/ void removeChip(RecipientChip chip) { 1981 Spannable spannable = getSpannable(); 1982 int spanStart = spannable.getSpanStart(chip); 1983 int spanEnd = spannable.getSpanEnd(chip); 1984 Editable text = getText(); 1985 int toDelete = spanEnd; 1986 boolean wasSelected = chip == mSelectedChip; 1987 // Clear that there is a selected chip before updating any text. 1988 if (wasSelected) { 1989 mSelectedChip = null; 1990 } 1991 // Always remove trailing spaces when removing a chip. 1992 while (toDelete >= 0 && toDelete < text.length() && text.charAt(toDelete) == ' ') { 1993 toDelete++; 1994 } 1995 spannable.removeSpan(chip); 1996 if (spanStart >= 0 && toDelete > 0) { 1997 text.delete(spanStart, toDelete); 1998 } 1999 if (wasSelected) { 2000 clearSelectedChip(); 2001 } 2002 } 2003 2004 /** 2005 * Replace this currently selected chip with a new chip 2006 * that uses the contact data provided. 2007 */ 2008 // Visible for testing. 2009 /*package*/ void replaceChip(RecipientChip chip, RecipientEntry entry) { 2010 boolean wasSelected = chip == mSelectedChip; 2011 if (wasSelected) { 2012 mSelectedChip = null; 2013 } 2014 int start = getChipStart(chip); 2015 int end = getChipEnd(chip); 2016 getSpannable().removeSpan(chip); 2017 Editable editable = getText(); 2018 CharSequence chipText = createChip(entry, false); 2019 if (chipText != null) { 2020 if (start == -1 || end == -1) { 2021 Log.e(TAG, "The chip to replace does not exist but should."); 2022 editable.insert(0, chipText); 2023 } else { 2024 if (!TextUtils.isEmpty(chipText)) { 2025 // There may be a space to replace with this chip's new 2026 // associated space. Check for it 2027 int toReplace = end; 2028 while (toReplace >= 0 && toReplace < editable.length() 2029 && editable.charAt(toReplace) == ' ') { 2030 toReplace++; 2031 } 2032 editable.replace(start, toReplace, chipText); 2033 } 2034 } 2035 } 2036 setCursorVisible(true); 2037 if (wasSelected) { 2038 clearSelectedChip(); 2039 } 2040 } 2041 2042 /** 2043 * Handle click events for a chip. When a selected chip receives a click 2044 * event, see if that event was in the delete icon. If so, delete it. 2045 * Otherwise, unselect the chip. 2046 */ 2047 public void onClick(RecipientChip chip, int offset, float x, float y) { 2048 if (chip.isSelected()) { 2049 if (isInDelete(chip, offset, x, y)) { 2050 removeChip(chip); 2051 } else { 2052 clearSelectedChip(); 2053 } 2054 } 2055 } 2056 2057 private boolean chipsPending() { 2058 return mPendingChipsCount > 0 || (mRemovedSpans != null && mRemovedSpans.size() > 0); 2059 } 2060 2061 @Override 2062 public void removeTextChangedListener(TextWatcher watcher) { 2063 mTextWatcher = null; 2064 super.removeTextChangedListener(watcher); 2065 } 2066 2067 private class RecipientTextWatcher implements TextWatcher { 2068 2069 @Override 2070 public void afterTextChanged(Editable s) { 2071 // If the text has been set to null or empty, make sure we remove 2072 // all the spans we applied. 2073 if (TextUtils.isEmpty(s)) { 2074 // Remove all the chips spans. 2075 Spannable spannable = getSpannable(); 2076 RecipientChip[] chips = spannable.getSpans(0, getText().length(), 2077 RecipientChip.class); 2078 for (RecipientChip chip : chips) { 2079 spannable.removeSpan(chip); 2080 } 2081 if (mMoreChip != null) { 2082 spannable.removeSpan(mMoreChip); 2083 } 2084 return; 2085 } 2086 // Get whether there are any recipients pending addition to the 2087 // view. If there are, don't do anything in the text watcher. 2088 if (chipsPending()) { 2089 return; 2090 } 2091 // If the user is editing a chip, don't clear it. 2092 if (mSelectedChip != null 2093 && mSelectedChip.getContactId() != RecipientEntry.INVALID_CONTACT) { 2094 setCursorVisible(true); 2095 setSelection(getText().length()); 2096 clearSelectedChip(); 2097 } 2098 int length = s.length(); 2099 // Make sure there is content there to parse and that it is 2100 // not just the commit character. 2101 if (length > 1) { 2102 char last; 2103 int end = getSelectionEnd() == 0 ? 0 : getSelectionEnd() - 1; 2104 int len = length() - 1; 2105 if (end != len) { 2106 last = s.charAt(end); 2107 } else { 2108 last = s.charAt(len); 2109 } 2110 if (last == COMMIT_CHAR_SEMICOLON || last == COMMIT_CHAR_COMMA) { 2111 commitByCharacter(); 2112 } else if (last == COMMIT_CHAR_SPACE) { 2113 if (!isPhoneQuery()) { 2114 // Check if this is a valid email address. If it is, 2115 // commit it. 2116 String text = getText().toString(); 2117 int tokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 2118 String sub = text.substring(tokenStart, mTokenizer.findTokenEnd(text, 2119 tokenStart)); 2120 if (!TextUtils.isEmpty(sub) && mValidator != null && 2121 mValidator.isValid(sub)) { 2122 commitByCharacter(); 2123 } 2124 } 2125 } 2126 } 2127 } 2128 2129 @Override 2130 public void onTextChanged(CharSequence s, int start, int before, int count) { 2131 // This is a delete; check to see if the insertion point is on a space 2132 // following a chip. 2133 if (before > count) { 2134 // If the item deleted is a space, and the thing before the 2135 // space is a chip, delete the entire span. 2136 int selStart = getSelectionStart(); 2137 RecipientChip[] repl = getSpannable().getSpans(selStart, selStart, 2138 RecipientChip.class); 2139 if (repl.length > 0) { 2140 // There is a chip there! Just remove it. 2141 Editable editable = getText(); 2142 // Add the separator token. 2143 int tokenStart = mTokenizer.findTokenStart(editable, selStart); 2144 int tokenEnd = mTokenizer.findTokenEnd(editable, tokenStart); 2145 tokenEnd = tokenEnd + 1; 2146 if (tokenEnd > editable.length()) { 2147 tokenEnd = editable.length(); 2148 } 2149 editable.delete(tokenStart, tokenEnd); 2150 getSpannable().removeSpan(repl[0]); 2151 } 2152 } else if (count > before) { 2153 scrollBottomIntoView(); 2154 } 2155 } 2156 2157 @Override 2158 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 2159 // Do nothing. 2160 } 2161 } 2162 2163 private void scrollBottomIntoView() { 2164 if (mScrollView != null) { 2165 mScrollView.scrollBy(0, (int)(getLineCount() * mChipHeight)); 2166 } 2167 } 2168 2169 /** 2170 * Handles pasting a {@link ClipData} to this {@link RecipientEditTextView}. 2171 */ 2172 private void handlePasteClip(ClipData clip) { 2173 removeTextChangedListener(mTextWatcher); 2174 2175 if (clip != null && clip.getDescription().hasMimeType(ClipDescription.MIMETYPE_TEXT_PLAIN)){ 2176 for (int i = 0; i < clip.getItemCount(); i++) { 2177 CharSequence paste = clip.getItemAt(i).getText(); 2178 if (paste != null) { 2179 int start = getSelectionStart(); 2180 int end = getSelectionEnd(); 2181 Editable editable = getText(); 2182 if (start >= 0 && end >= 0 && start != end) { 2183 editable.append(paste, start, end); 2184 } else { 2185 editable.insert(end, paste); 2186 } 2187 handlePasteAndReplace(); 2188 } 2189 } 2190 } 2191 2192 mHandler.post(mAddTextWatcher); 2193 } 2194 2195 @Override 2196 public boolean onTextContextMenuItem(int id) { 2197 if (id == android.R.id.paste) { 2198 ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService( 2199 Context.CLIPBOARD_SERVICE); 2200 handlePasteClip(clipboard.getPrimaryClip()); 2201 return true; 2202 } 2203 return super.onTextContextMenuItem(id); 2204 } 2205 2206 private void handlePasteAndReplace() { 2207 ArrayList<RecipientChip> created = handlePaste(); 2208 if (created != null && created.size() > 0) { 2209 // Perform reverse lookups on the pasted contacts. 2210 IndividualReplacementTask replace = new IndividualReplacementTask(); 2211 replace.execute(created); 2212 } 2213 } 2214 2215 // Visible for testing. 2216 /* package */ArrayList<RecipientChip> handlePaste() { 2217 String text = getText().toString(); 2218 int originalTokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 2219 String lastAddress = text.substring(originalTokenStart); 2220 int tokenStart = originalTokenStart; 2221 int prevTokenStart = tokenStart; 2222 RecipientChip findChip = null; 2223 ArrayList<RecipientChip> created = new ArrayList<RecipientChip>(); 2224 if (tokenStart != 0) { 2225 // There are things before this! 2226 while (tokenStart != 0 && findChip == null) { 2227 prevTokenStart = tokenStart; 2228 tokenStart = mTokenizer.findTokenStart(text, tokenStart); 2229 findChip = findChip(tokenStart); 2230 } 2231 if (tokenStart != originalTokenStart) { 2232 if (findChip != null) { 2233 tokenStart = prevTokenStart; 2234 } 2235 int tokenEnd; 2236 RecipientChip createdChip; 2237 while (tokenStart < originalTokenStart) { 2238 tokenEnd = movePastTerminators(mTokenizer.findTokenEnd(getText().toString(), 2239 tokenStart)); 2240 commitChip(tokenStart, tokenEnd, getText()); 2241 createdChip = findChip(tokenStart); 2242 if (createdChip == null) { 2243 break; 2244 } 2245 // +1 for the space at the end. 2246 tokenStart = getSpannable().getSpanEnd(createdChip) + 1; 2247 created.add(createdChip); 2248 } 2249 } 2250 } 2251 // Take a look at the last token. If the token has been completed with a 2252 // commit character, create a chip. 2253 if (isCompletedToken(lastAddress)) { 2254 Editable editable = getText(); 2255 tokenStart = editable.toString().indexOf(lastAddress, originalTokenStart); 2256 commitChip(tokenStart, editable.length(), editable); 2257 created.add(findChip(tokenStart)); 2258 } 2259 return created; 2260 } 2261 2262 // Visible for testing. 2263 /* package */int movePastTerminators(int tokenEnd) { 2264 if (tokenEnd >= length()) { 2265 return tokenEnd; 2266 } 2267 char atEnd = getText().toString().charAt(tokenEnd); 2268 if (atEnd == COMMIT_CHAR_COMMA || atEnd == COMMIT_CHAR_SEMICOLON) { 2269 tokenEnd++; 2270 } 2271 // This token had not only an end token character, but also a space 2272 // separating it from the next token. 2273 if (tokenEnd < length() && getText().toString().charAt(tokenEnd) == ' ') { 2274 tokenEnd++; 2275 } 2276 return tokenEnd; 2277 } 2278 2279 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 2280 private RecipientChip createFreeChip(RecipientEntry entry) { 2281 try { 2282 if (mNoChips) { 2283 return null; 2284 } 2285 return constructChipSpan(entry, -1, false); 2286 } catch (NullPointerException e) { 2287 Log.e(TAG, e.getMessage(), e); 2288 return null; 2289 } 2290 } 2291 2292 @Override 2293 protected Void doInBackground(Void... params) { 2294 if (mIndividualReplacements != null) { 2295 mIndividualReplacements.cancel(true); 2296 } 2297 // For each chip in the list, look up the matching contact. 2298 // If there is a match, replace that chip with the matching 2299 // chip. 2300 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 2301 RecipientChip[] existingChips = getSortedRecipients(); 2302 for (int i = 0; i < existingChips.length; i++) { 2303 originalRecipients.add(existingChips[i]); 2304 } 2305 if (mRemovedSpans != null) { 2306 originalRecipients.addAll(mRemovedSpans); 2307 } 2308 ArrayList<String> addresses = new ArrayList<String>(); 2309 RecipientChip chip; 2310 for (int i = 0; i < originalRecipients.size(); i++) { 2311 chip = originalRecipients.get(i); 2312 if (chip != null) { 2313 addresses.add(createAddressText(chip.getEntry())); 2314 } 2315 } 2316 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 2317 .getMatchingRecipients(getContext(), addresses); 2318 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 2319 for (final RecipientChip temp : originalRecipients) { 2320 RecipientEntry entry = null; 2321 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 2322 && getSpannable().getSpanStart(temp) != -1) { 2323 // Replace this. 2324 entry = createValidatedEntry(entries.get(tokenizeAddress(temp.getEntry() 2325 .getDestination()))); 2326 } 2327 if (entry != null) { 2328 replacements.add(createFreeChip(entry)); 2329 } else { 2330 replacements.add(temp); 2331 } 2332 } 2333 if (replacements != null && replacements.size() > 0) { 2334 mHandler.post(new Runnable() { 2335 @Override 2336 public void run() { 2337 Editable oldText = getText(); 2338 int start, end; 2339 int i = 0; 2340 for (RecipientChip chip : originalRecipients) { 2341 // Find the location of the chip in the text currently shown. 2342 start = oldText.getSpanStart(chip); 2343 if (start != -1) { 2344 end = oldText.getSpanEnd(chip); 2345 oldText.removeSpan(chip); 2346 RecipientChip replacement = replacements.get(i); 2347 // Trim any whitespace, as we will already have 2348 // it added if these are replacement chips. 2349 SpannableString displayText = new SpannableString( 2350 createAddressText(replacement.getEntry()).trim()); 2351 displayText.setSpan(replacement, 0, displayText.length(), 2352 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 2353 // Replace the old text we found with with the new display text, 2354 // which now may also contain the display name of the recipient. 2355 oldText.replace(start, end, displayText); 2356 replacement.setOriginalText(displayText.toString()); 2357 } 2358 i++; 2359 } 2360 originalRecipients.clear(); 2361 } 2362 }); 2363 } 2364 return null; 2365 } 2366 } 2367 2368 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 2369 @SuppressWarnings("unchecked") 2370 @Override 2371 protected Void doInBackground(Object... params) { 2372 // For each chip in the list, look up the matching contact. 2373 // If there is a match, replace that chip with the matching 2374 // chip. 2375 final ArrayList<RecipientChip> originalRecipients = 2376 (ArrayList<RecipientChip>) params[0]; 2377 ArrayList<String> addresses = new ArrayList<String>(); 2378 RecipientChip chip; 2379 for (int i = 0; i < originalRecipients.size(); i++) { 2380 chip = originalRecipients.get(i); 2381 if (chip != null) { 2382 addresses.add(createAddressText(chip.getEntry())); 2383 } 2384 } 2385 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 2386 .getMatchingRecipients(getContext(), addresses); 2387 for (final RecipientChip temp : originalRecipients) { 2388 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 2389 && getSpannable().getSpanStart(temp) != -1) { 2390 // Replace this. 2391 final RecipientEntry entry = createValidatedEntry(entries.get(tokenizeAddress( 2392 temp.getEntry().getDestination()).toLowerCase())); 2393 if (entry != null) { 2394 mHandler.post(new Runnable() { 2395 @Override 2396 public void run() { 2397 replaceChip(temp, entry); 2398 } 2399 }); 2400 } 2401 } 2402 } 2403 return null; 2404 } 2405 } 2406 2407 2408 /** 2409 * MoreImageSpan is a simple class created for tracking the existence of a 2410 * more chip across activity restarts/ 2411 */ 2412 private class MoreImageSpan extends ImageSpan { 2413 public MoreImageSpan(Drawable b) { 2414 super(b); 2415 } 2416 } 2417 2418 @Override 2419 public boolean onDown(MotionEvent e) { 2420 return false; 2421 } 2422 2423 @Override 2424 public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { 2425 // Do nothing. 2426 return false; 2427 } 2428 2429 @Override 2430 public void onLongPress(MotionEvent event) { 2431 if (mSelectedChip != null) { 2432 return; 2433 } 2434 float x = event.getX(); 2435 float y = event.getY(); 2436 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 2437 RecipientChip currentChip = findChip(offset); 2438 if (currentChip != null) { 2439 if (mDragEnabled) { 2440 // Start drag-and-drop for the selected chip. 2441 startDrag(currentChip); 2442 } else { 2443 // Copy the selected chip email address. 2444 showCopyDialog(currentChip.getEntry().getDestination()); 2445 } 2446 } 2447 } 2448 2449 /** 2450 * Enables drag-and-drop for chips. 2451 */ 2452 public void enableDrag() { 2453 mDragEnabled = true; 2454 } 2455 2456 /** 2457 * Starts drag-and-drop for the selected chip. 2458 */ 2459 private void startDrag(RecipientChip currentChip) { 2460 String address = currentChip.getEntry().getDestination(); 2461 ClipData data = ClipData.newPlainText(address, address + COMMIT_CHAR_COMMA); 2462 2463 // Start drag mode. 2464 startDrag(data, new RecipientChipShadow(currentChip), null, 0); 2465 2466 // Remove the current chip, so drag-and-drop will result in a move. 2467 // TODO (phamm): consider readd this chip if it's dropped outside a target. 2468 removeChip(currentChip); 2469 } 2470 2471 /** 2472 * Handles drag event. 2473 */ 2474 @Override 2475 public boolean onDragEvent(DragEvent event) { 2476 switch (event.getAction()) { 2477 case DragEvent.ACTION_DRAG_STARTED: 2478 // Only handle plain text drag and drop. 2479 return event.getClipDescription().hasMimeType(ClipDescription.MIMETYPE_TEXT_PLAIN); 2480 case DragEvent.ACTION_DRAG_ENTERED: 2481 requestFocus(); 2482 return true; 2483 case DragEvent.ACTION_DROP: 2484 handlePasteClip(event.getClipData()); 2485 return true; 2486 } 2487 return false; 2488 } 2489 2490 /** 2491 * Drag shadow for a {@link RecipientChip}. 2492 */ 2493 private final class RecipientChipShadow extends DragShadowBuilder { 2494 private final RecipientChip mChip; 2495 2496 public RecipientChipShadow(RecipientChip chip) { 2497 mChip = chip; 2498 } 2499 2500 @Override 2501 public void onProvideShadowMetrics(Point shadowSize, Point shadowTouchPoint) { 2502 Rect rect = mChip.getDrawable().getBounds(); 2503 shadowSize.set(rect.width(), rect.height()); 2504 shadowTouchPoint.set(rect.centerX(), rect.centerY()); 2505 } 2506 2507 @Override 2508 public void onDrawShadow(Canvas canvas) { 2509 mChip.getDrawable().draw(canvas); 2510 } 2511 } 2512 2513 private void showCopyDialog(final String address) { 2514 mCopyAddress = address; 2515 mCopyDialog.setTitle(address); 2516 mCopyDialog.setContentView(R.layout.copy_chip_dialog_layout); 2517 mCopyDialog.setCancelable(true); 2518 mCopyDialog.setCanceledOnTouchOutside(true); 2519 Button button = (Button)mCopyDialog.findViewById(android.R.id.button1); 2520 button.setOnClickListener(this); 2521 int btnTitleId; 2522 if (isPhoneQuery()) { 2523 btnTitleId = R.string.copy_number; 2524 } else { 2525 btnTitleId = R.string.copy_email; 2526 } 2527 String buttonTitle = getContext().getResources().getString(btnTitleId); 2528 button.setText(buttonTitle); 2529 mCopyDialog.setOnDismissListener(this); 2530 mCopyDialog.show(); 2531 } 2532 2533 @Override 2534 public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) { 2535 // Do nothing. 2536 return false; 2537 } 2538 2539 @Override 2540 public void onShowPress(MotionEvent e) { 2541 // Do nothing. 2542 } 2543 2544 @Override 2545 public boolean onSingleTapUp(MotionEvent e) { 2546 // Do nothing. 2547 return false; 2548 } 2549 2550 @Override 2551 public void onDismiss(DialogInterface dialog) { 2552 mCopyAddress = null; 2553 } 2554 2555 @Override 2556 public void onClick(View v) { 2557 // Copy this to the clipboard. 2558 ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService( 2559 Context.CLIPBOARD_SERVICE); 2560 clipboard.setPrimaryClip(ClipData.newPlainText("", mCopyAddress)); 2561 mCopyDialog.dismiss(); 2562 } 2563 2564 protected boolean isPhoneQuery() { 2565 return getAdapter() != null 2566 && ((BaseRecipientAdapter) getAdapter()).getQueryType() 2567 == BaseRecipientAdapter.QUERY_TYPE_PHONE; 2568 } 2569} 2570