RecipientEditTextView.java revision 0124468e712b4098ea240b8d45f84e52826b293d
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.indexOf(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 displayString = displayString.substring(separatorPos); 359 int endQuotedTextPos = displayString.indexOf(NAME_WRAPPER_CHAR); 360 if (endQuotedTextPos > separatorPos) { 361 displayString = displayString.substring(endQuotedTextPos); 362 separatorPos = displayString.indexOf(COMMIT_CHAR_COMMA); 363 } 364 } 365 if (separatorPos > 0 && !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 chips. 372 if (mPendingChipsCount > 0) { 373 postHandlePendingChips(); 374 } 375 mHandler.post(mAddTextWatcher); 376 } 377 378 @Override 379 public void onFocusChanged(boolean hasFocus, int direction, Rect previous) { 380 super.onFocusChanged(hasFocus, direction, previous); 381 if (!hasFocus) { 382 shrink(); 383 } else { 384 expand(); 385 } 386 } 387 388 @Override 389 public void performValidation() { 390 // Do nothing. Chips handles its own validation. 391 } 392 393 private void shrink() { 394 if (mTokenizer == null) { 395 return; 396 } 397 if (mSelectedChip != null 398 && mSelectedChip.getEntry().getContactId() != RecipientEntry.INVALID_CONTACT) { 399 clearSelectedChip(); 400 } else { 401 if (getWidth() <= 0) { 402 // We don't have the width yet which means the view hasn't been drawn yet 403 // and there is no reason to attempt to commit chips yet. 404 // This focus lost must be the result of an orientation change 405 // or an initial rendering. 406 // Re-post the shrink for later. 407 mHandler.removeCallbacks(mDelayedShrink); 408 mHandler.post(mDelayedShrink); 409 return; 410 } 411 // Reset any pending chips as they would have been handled 412 // when the field lost focus. 413 if (mPendingChipsCount > 0) { 414 postHandlePendingChips(); 415 } else { 416 Editable editable = getText(); 417 int end = getSelectionEnd(); 418 int start = mTokenizer.findTokenStart(editable, end); 419 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 420 if ((chips == null || chips.length == 0)) { 421 Editable text = getText(); 422 int whatEnd = mTokenizer.findTokenEnd(text, start); 423 // This token was already tokenized, so skip past the ending token. 424 if (whatEnd < text.length() && text.charAt(whatEnd) == ',') { 425 whatEnd++; 426 } 427 // In the middle of chip; treat this as an edit 428 // and commit the whole token. 429 int selEnd = getSelectionEnd(); 430 if (whatEnd != selEnd) { 431 handleEdit(start, whatEnd); 432 } else { 433 commitChip(start, end, editable); 434 } 435 } 436 } 437 mHandler.post(mAddTextWatcher); 438 } 439 createMoreChip(); 440 } 441 442 private void expand() { 443 removeMoreChip(); 444 setCursorVisible(true); 445 Editable text = getText(); 446 setSelection(text != null && text.length() > 0 ? text.length() : 0); 447 // If there are any temporary chips, try replacing them now that the user 448 // has expanded the field. 449 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0) { 450 new RecipientReplacementTask().execute(); 451 mTemporaryRecipients = null; 452 } 453 } 454 455 private CharSequence ellipsizeText(CharSequence text, TextPaint paint, float maxWidth) { 456 paint.setTextSize(mChipFontSize); 457 if (maxWidth <= 0 && Log.isLoggable(TAG, Log.DEBUG)) { 458 Log.d(TAG, "Max width is negative: " + maxWidth); 459 } 460 return TextUtils.ellipsize(text, paint, maxWidth, 461 TextUtils.TruncateAt.END); 462 } 463 464 private Bitmap createSelectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 465 // Ellipsize the text so that it takes AT MOST the entire width of the 466 // autocomplete text entry area. Make sure to leave space for padding 467 // on the sides. 468 int height = (int) mChipHeight; 469 int deleteWidth = height; 470 float[] widths = new float[1]; 471 paint.getTextWidths(" ", widths); 472 CharSequence ellipsizedText = ellipsizeText(createChipDisplayText(contact), paint, 473 calculateAvailableWidth(true) - deleteWidth - widths[0]); 474 475 // Make sure there is a minimum chip width so the user can ALWAYS 476 // tap a chip without difficulty. 477 int width = Math.max(deleteWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 478 ellipsizedText.length())) 479 + (mChipPadding * 2) + deleteWidth); 480 481 // Create the background of the chip. 482 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 483 Canvas canvas = new Canvas(tmpBitmap); 484 if (mChipBackgroundPressed != null) { 485 mChipBackgroundPressed.setBounds(0, 0, width, height); 486 mChipBackgroundPressed.draw(canvas); 487 paint.setColor(sSelectedTextColor); 488 // Vertically center the text in the chip. 489 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 490 getTextYOffset((String) ellipsizedText, paint, height), paint); 491 // Make the delete a square. 492 Rect backgroundPadding = new Rect(); 493 mChipBackgroundPressed.getPadding(backgroundPadding); 494 mChipDelete.setBounds(width - deleteWidth + backgroundPadding.left, 495 0 + backgroundPadding.top, 496 width - backgroundPadding.right, 497 height - backgroundPadding.bottom); 498 mChipDelete.draw(canvas); 499 } else { 500 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 501 } 502 return tmpBitmap; 503 } 504 505 506 private Bitmap createUnselectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 507 // Ellipsize the text so that it takes AT MOST the entire width of the 508 // autocomplete text entry area. Make sure to leave space for padding 509 // on the sides. 510 int height = (int) mChipHeight; 511 int iconWidth = height; 512 float[] widths = new float[1]; 513 paint.getTextWidths(" ", widths); 514 CharSequence ellipsizedText = ellipsizeText(createChipDisplayText(contact), paint, 515 calculateAvailableWidth(false) - iconWidth - widths[0]); 516 // Make sure there is a minimum chip width so the user can ALWAYS 517 // tap a chip without difficulty. 518 int width = Math.max(iconWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 519 ellipsizedText.length())) 520 + (mChipPadding * 2) + iconWidth); 521 522 // Create the background of the chip. 523 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 524 Canvas canvas = new Canvas(tmpBitmap); 525 Drawable background = getChipBackground(contact); 526 if (background != null) { 527 background.setBounds(0, 0, width, height); 528 background.draw(canvas); 529 530 // Don't draw photos for recipients that have been typed in. 531 if (contact.getContactId() != RecipientEntry.INVALID_CONTACT) { 532 byte[] photoBytes = contact.getPhotoBytes(); 533 // There may not be a photo yet if anything but the first contact address 534 // was selected. 535 if (photoBytes == null && contact.getPhotoThumbnailUri() != null) { 536 // TODO: cache this in the recipient entry? 537 ((BaseRecipientAdapter) getAdapter()).fetchPhoto(contact, contact 538 .getPhotoThumbnailUri()); 539 photoBytes = contact.getPhotoBytes(); 540 } 541 542 Bitmap photo; 543 if (photoBytes != null) { 544 photo = BitmapFactory.decodeByteArray(photoBytes, 0, photoBytes.length); 545 } else { 546 // TODO: can the scaled down default photo be cached? 547 photo = mDefaultContactPhoto; 548 } 549 // Draw the photo on the left side. 550 if (photo != null) { 551 RectF src = new RectF(0, 0, photo.getWidth(), photo.getHeight()); 552 Rect backgroundPadding = new Rect(); 553 mChipBackground.getPadding(backgroundPadding); 554 RectF dst = new RectF(width - iconWidth + backgroundPadding.left, 555 0 + backgroundPadding.top, 556 width - backgroundPadding.right, 557 height - backgroundPadding.bottom); 558 Matrix matrix = new Matrix(); 559 matrix.setRectToRect(src, dst, Matrix.ScaleToFit.FILL); 560 canvas.drawBitmap(photo, matrix, paint); 561 } 562 } else { 563 // Don't leave any space for the icon. It isn't being drawn. 564 iconWidth = 0; 565 } 566 paint.setColor(getContext().getResources().getColor(android.R.color.black)); 567 // Vertically center the text in the chip. 568 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 569 getTextYOffset((String)ellipsizedText, paint, height), paint); 570 } else { 571 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 572 } 573 return tmpBitmap; 574 } 575 576 /** 577 * Get the background drawable for a RecipientChip. 578 */ 579 // Visible for testing. 580 /*package*/ Drawable getChipBackground(RecipientEntry contact) { 581 return (mValidator != null && mValidator.isValid(contact.getDestination())) ? 582 mChipBackground : mInvalidChipBackground; 583 } 584 585 private float getTextYOffset(String text, TextPaint paint, int height) { 586 Rect bounds = new Rect(); 587 paint.getTextBounds(text, 0, text.length(), bounds); 588 int textHeight = bounds.bottom - bounds.top ; 589 return height - ((height - textHeight) / 2) - (int)paint.descent(); 590 } 591 592 private RecipientChip constructChipSpan(RecipientEntry contact, int offset, boolean pressed) 593 throws NullPointerException { 594 if (mChipBackground == null) { 595 throw new NullPointerException( 596 "Unable to render any chips as setChipDimensions was not called."); 597 } 598 Layout layout = getLayout(); 599 600 TextPaint paint = getPaint(); 601 float defaultSize = paint.getTextSize(); 602 int defaultColor = paint.getColor(); 603 604 Bitmap tmpBitmap; 605 if (pressed) { 606 tmpBitmap = createSelectedChip(contact, paint, layout); 607 608 } else { 609 tmpBitmap = createUnselectedChip(contact, paint, layout); 610 } 611 612 // Pass the full text, un-ellipsized, to the chip. 613 Drawable result = new BitmapDrawable(getResources(), tmpBitmap); 614 result.setBounds(0, 0, tmpBitmap.getWidth(), tmpBitmap.getHeight()); 615 RecipientChip recipientChip = new RecipientChip(result, contact, offset); 616 // Return text to the original size. 617 paint.setTextSize(defaultSize); 618 paint.setColor(defaultColor); 619 return recipientChip; 620 } 621 622 /** 623 * Calculate the bottom of the line the chip will be located on using: 624 * 1) which line the chip appears on 625 * 2) the height of a chip 626 * 3) padding built into the edit text view 627 */ 628 private int calculateOffsetFromBottom(int line) { 629 // Line offsets start at zero. 630 int actualLine = getLineCount() - (line + 1); 631 return -((actualLine * ((int) mChipHeight) + getPaddingBottom()) + getPaddingTop()) 632 + getDropDownVerticalOffset(); 633 } 634 635 /** 636 * Get the max amount of space a chip can take up. The formula takes into 637 * account the width of the EditTextView, any view padding, and padding 638 * that will be added to the chip. 639 */ 640 private float calculateAvailableWidth(boolean pressed) { 641 return getWidth() - getPaddingLeft() - getPaddingRight() - (mChipPadding * 2); 642 } 643 644 645 private void setChipDimensions(Context context, AttributeSet attrs) { 646 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.RecipientEditTextView, 0, 647 0); 648 Resources r = getContext().getResources(); 649 mChipBackground = a.getDrawable(R.styleable.RecipientEditTextView_chipBackground); 650 if (mChipBackground == null) { 651 mChipBackground = r.getDrawable(R.drawable.chip_background); 652 } 653 mChipBackgroundPressed = a 654 .getDrawable(R.styleable.RecipientEditTextView_chipBackgroundPressed); 655 if (mChipBackgroundPressed == null) { 656 mChipBackgroundPressed = r.getDrawable(R.drawable.chip_background_selected); 657 } 658 mChipDelete = a.getDrawable(R.styleable.RecipientEditTextView_chipDelete); 659 if (mChipDelete == null) { 660 mChipDelete = r.getDrawable(R.drawable.chip_delete); 661 } 662 mChipPadding = a.getDimensionPixelSize(R.styleable.RecipientEditTextView_chipPadding, -1); 663 if (mChipPadding == -1) { 664 mChipPadding = (int) r.getDimension(R.dimen.chip_padding); 665 } 666 mAlternatesLayout = a.getResourceId(R.styleable.RecipientEditTextView_chipAlternatesLayout, 667 -1); 668 if (mAlternatesLayout == -1) { 669 mAlternatesLayout = R.layout.chips_alternate_item; 670 } 671 672 mDefaultContactPhoto = BitmapFactory.decodeResource(r, R.drawable.ic_contact_picture); 673 674 mMoreItem = (TextView) LayoutInflater.from(getContext()).inflate(R.layout.more_item, null); 675 676 mChipHeight = a.getDimensionPixelSize(R.styleable.RecipientEditTextView_chipHeight, -1); 677 if (mChipHeight == -1) { 678 mChipHeight = r.getDimension(R.dimen.chip_height); 679 } 680 mChipFontSize = a.getDimensionPixelSize(R.styleable.RecipientEditTextView_chipFontSize, -1); 681 if (mChipFontSize == -1) { 682 mChipFontSize = r.getDimension(R.dimen.chip_text_size); 683 } 684 mInvalidChipBackground = a 685 .getDrawable(R.styleable.RecipientEditTextView_invalidChipBackground); 686 if (mInvalidChipBackground == null) { 687 mInvalidChipBackground = r.getDrawable(R.drawable.chip_background_invalid); 688 } 689 mLineSpacingExtra = context.getResources().getDimension(R.dimen.line_spacing_extra); 690 a.recycle(); 691 } 692 693 // Visible for testing. 694 /* package */ void setMoreItem(TextView moreItem) { 695 mMoreItem = moreItem; 696 } 697 698 699 // Visible for testing. 700 /* package */ void setChipBackground(Drawable chipBackground) { 701 mChipBackground = chipBackground; 702 } 703 704 // Visible for testing. 705 /* package */ void setChipHeight(int height) { 706 mChipHeight = height; 707 } 708 709 /** 710 * Set whether to shrink the recipients field such that at most 711 * one line of recipients chips are shown when the field loses 712 * focus. By default, the number of displayed recipients will be 713 * limited and a "more" chip will be shown when focus is lost. 714 * @param shrink 715 */ 716 public void setOnFocusListShrinkRecipients(boolean shrink) { 717 mShouldShrink = shrink; 718 } 719 720 @Override 721 public void onSizeChanged(int width, int height, int oldw, int oldh) { 722 super.onSizeChanged(width, height, oldw, oldh); 723 if (width != 0 && height != 0) { 724 if (mPendingChipsCount > 0) { 725 postHandlePendingChips(); 726 } else { 727 checkChipWidths(); 728 } 729 } 730 // Try to find the scroll view parent, if it exists. 731 if (mScrollView == null && !mTriedGettingScrollView) { 732 ViewParent parent = getParent(); 733 while (parent != null && !(parent instanceof ScrollView)) { 734 parent = parent.getParent(); 735 } 736 if (parent != null) { 737 mScrollView = (ScrollView) parent; 738 } 739 mTriedGettingScrollView = true; 740 } 741 } 742 743 private void postHandlePendingChips() { 744 mHandler.removeCallbacks(mHandlePendingChips); 745 mHandler.post(mHandlePendingChips); 746 } 747 748 private void checkChipWidths() { 749 // Check the widths of the associated chips. 750 RecipientChip[] chips = getSortedRecipients(); 751 if (chips != null) { 752 Rect bounds; 753 for (RecipientChip chip : chips) { 754 bounds = chip.getDrawable().getBounds(); 755 if (getWidth() > 0 && bounds.right - bounds.left > getWidth()) { 756 // Need to redraw that chip. 757 replaceChip(chip, chip.getEntry()); 758 } 759 } 760 } 761 } 762 763 // Visible for testing. 764 /*package*/ void handlePendingChips() { 765 if (getViewWidth() <= 0) { 766 // The widget has not been sized yet. 767 // This will be called as a result of onSizeChanged 768 // at a later point. 769 return; 770 } 771 if (mPendingChipsCount <= 0) { 772 return; 773 } 774 775 synchronized (mPendingChips) { 776 Editable editable = getText(); 777 // Tokenize! 778 if (mPendingChipsCount <= MAX_CHIPS_PARSED) { 779 for (int i = 0; i < mPendingChips.size(); i++) { 780 String current = mPendingChips.get(i); 781 int tokenStart = editable.toString().indexOf(current); 782 int tokenEnd = tokenStart + current.length(); 783 if (tokenStart >= 0) { 784 // When we have a valid token, include it with the token 785 // to the left. 786 if (tokenEnd < editable.length() - 2 787 && editable.charAt(tokenEnd) == COMMIT_CHAR_COMMA) { 788 tokenEnd++; 789 } 790 createReplacementChip(tokenStart, tokenEnd, editable); 791 } 792 mPendingChipsCount--; 793 } 794 sanitizeEnd(); 795 } else { 796 mNoChips = true; 797 } 798 799 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0 800 && mTemporaryRecipients.size() <= RecipientAlternatesAdapter.MAX_LOOKUPS) { 801 if (hasFocus() || mTemporaryRecipients.size() < CHIP_LIMIT) { 802 new RecipientReplacementTask().execute(); 803 mTemporaryRecipients = null; 804 } else { 805 // Create the "more" chip 806 mIndividualReplacements = new IndividualReplacementTask(); 807 mIndividualReplacements.execute(new ArrayList<RecipientChip>( 808 mTemporaryRecipients.subList(0, CHIP_LIMIT))); 809 810 createMoreChip(); 811 } 812 } else { 813 // There are too many recipients to look up, so just fall back 814 // to showing addresses for all of them. 815 mTemporaryRecipients = null; 816 createMoreChip(); 817 } 818 mPendingChipsCount = 0; 819 mPendingChips.clear(); 820 } 821 } 822 823 // Visible for testing. 824 /*package*/ int getViewWidth() { 825 return getWidth(); 826 } 827 828 /** 829 * Remove any characters after the last valid chip. 830 */ 831 // Visible for testing. 832 /*package*/ void sanitizeEnd() { 833 // Don't sanitize while we are waiting for pending chips to complete. 834 if (mPendingChipsCount > 0) { 835 return; 836 } 837 // Find the last chip; eliminate any commit characters after it. 838 RecipientChip[] chips = getSortedRecipients(); 839 if (chips != null && chips.length > 0) { 840 int end; 841 ImageSpan lastSpan; 842 mMoreChip = getMoreChip(); 843 if (mMoreChip != null) { 844 lastSpan = mMoreChip; 845 } else { 846 lastSpan = getLastChip(); 847 } 848 end = getSpannable().getSpanEnd(lastSpan); 849 Editable editable = getText(); 850 int length = editable.length(); 851 if (length > end) { 852 // See what characters occur after that and eliminate them. 853 if (Log.isLoggable(TAG, Log.DEBUG)) { 854 Log.d(TAG, "There were extra characters after the last tokenizable entry." 855 + editable); 856 } 857 editable.delete(end + 1, length); 858 } 859 } 860 } 861 862 /** 863 * Create a chip that represents just the email address of a recipient. At some later 864 * point, this chip will be attached to a real contact entry, if one exists. 865 */ 866 private void createReplacementChip(int tokenStart, int tokenEnd, Editable editable) { 867 if (alreadyHasChip(tokenStart, tokenEnd)) { 868 // There is already a chip present at this location. 869 // Don't recreate it. 870 return; 871 } 872 String token = editable.toString().substring(tokenStart, tokenEnd); 873 int commitCharIndex = token.trim().lastIndexOf(COMMIT_CHAR_COMMA); 874 if (commitCharIndex == token.length() - 1) { 875 token = token.substring(0, token.length() - 1); 876 } 877 RecipientEntry entry = createTokenizedEntry(token); 878 if (entry != null) { 879 String destText = createAddressText(entry); 880 // Always leave a blank space at the end of a chip. 881 int textLength = destText.length() - 1; 882 SpannableString chipText = new SpannableString(destText); 883 int end = getSelectionEnd(); 884 int start = mTokenizer != null ? mTokenizer.findTokenStart(getText(), end) : 0; 885 RecipientChip chip = null; 886 try { 887 if (!mNoChips) { 888 chip = constructChipSpan(entry, start, false); 889 chipText.setSpan(chip, 0, textLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 890 } 891 } catch (NullPointerException e) { 892 Log.e(TAG, e.getMessage(), e); 893 } 894 editable.replace(tokenStart, tokenEnd, chipText); 895 // Add this chip to the list of entries "to replace" 896 if (chip != null) { 897 if (mTemporaryRecipients == null) { 898 mTemporaryRecipients = new ArrayList<RecipientChip>(); 899 } 900 chip.setOriginalText(chipText.toString()); 901 mTemporaryRecipients.add(chip); 902 } 903 } 904 } 905 906 private static boolean isPhoneNumber(String number) { 907 // TODO: replace this function with libphonenumber's isPossibleNumber (see 908 // PhoneNumberUtil). One complication is that it requires the sender's region which 909 // comes from the CurrentCountryIso. For now, let's just do this simple match. 910 if (TextUtils.isEmpty(number)) { 911 return false; 912 } 913 914 Matcher match = Patterns.PHONE.matcher(number); 915 return match.matches(); 916 } 917 918 private RecipientEntry createTokenizedEntry(String token) { 919 if (TextUtils.isEmpty(token)) { 920 return null; 921 } 922 if (isPhoneQuery() && isPhoneNumber(token)) { 923 return RecipientEntry 924 .constructFakeEntry(token); 925 } 926 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(token); 927 String display = null; 928 if (isValid(token) && tokens != null && tokens.length > 0) { 929 // If we can get a name from tokenizing, then generate an entry from 930 // this. 931 display = tokens[0].getName(); 932 if (!TextUtils.isEmpty(display)) { 933 return RecipientEntry.constructGeneratedEntry(display, token); 934 } else { 935 display = tokens[0].getAddress(); 936 if (!TextUtils.isEmpty(display)) { 937 return RecipientEntry.constructFakeEntry(display); 938 } 939 } 940 } 941 // Unable to validate the token or to create a valid token from it. 942 // Just create a chip the user can edit. 943 String validatedToken = null; 944 if (mValidator != null && !mValidator.isValid(token)) { 945 // Try fixing up the entry using the validator. 946 validatedToken = mValidator.fixText(token).toString(); 947 if (!TextUtils.isEmpty(validatedToken)) { 948 if (validatedToken.contains(token)) { 949 // protect against the case of a validator with a null domain, 950 // which doesn't add a domain to the token 951 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(validatedToken); 952 if (tokenized.length > 0) { 953 validatedToken = tokenized[0].getAddress(); 954 } 955 } else { 956 // We ran into a case where the token was invalid and removed 957 // by the validator. In this case, just use the original token 958 // and let the user sort out the error chip. 959 validatedToken = null; 960 } 961 } 962 } 963 // Otherwise, fallback to just creating an editable email address chip. 964 return RecipientEntry 965 .constructFakeEntry(!TextUtils.isEmpty(validatedToken) ? validatedToken : token); 966 } 967 968 private boolean isValid(String text) { 969 return mValidator == null ? true : mValidator.isValid(text); 970 } 971 972 private String tokenizeAddress(String destination) { 973 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(destination); 974 if (tokens != null && tokens.length > 0) { 975 return tokens[0].getAddress(); 976 } 977 return destination; 978 } 979 980 @Override 981 public void setTokenizer(Tokenizer tokenizer) { 982 mTokenizer = tokenizer; 983 super.setTokenizer(mTokenizer); 984 } 985 986 @Override 987 public void setValidator(Validator validator) { 988 mValidator = validator; 989 super.setValidator(validator); 990 } 991 992 /** 993 * We cannot use the default mechanism for replaceText. Instead, 994 * we override onItemClickListener so we can get all the associated 995 * contact information including display text, address, and id. 996 */ 997 @Override 998 protected void replaceText(CharSequence text) { 999 return; 1000 } 1001 1002 /** 1003 * Dismiss any selected chips when the back key is pressed. 1004 */ 1005 @Override 1006 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 1007 if (keyCode == KeyEvent.KEYCODE_BACK && mSelectedChip != null) { 1008 clearSelectedChip(); 1009 return true; 1010 } 1011 return super.onKeyPreIme(keyCode, event); 1012 } 1013 1014 /** 1015 * Monitor key presses in this view to see if the user types 1016 * any commit keys, which consist of ENTER, TAB, or DPAD_CENTER. 1017 * If the user has entered text that has contact matches and types 1018 * a commit key, create a chip from the topmost matching contact. 1019 * If the user has entered text that has no contact matches and types 1020 * a commit key, then create a chip from the text they have entered. 1021 */ 1022 @Override 1023 public boolean onKeyUp(int keyCode, KeyEvent event) { 1024 switch (keyCode) { 1025 case KeyEvent.KEYCODE_ENTER: 1026 case KeyEvent.KEYCODE_DPAD_CENTER: 1027 if (event.hasNoModifiers()) { 1028 if (commitDefault()) { 1029 return true; 1030 } 1031 if (mSelectedChip != null) { 1032 clearSelectedChip(); 1033 return true; 1034 } else if (focusNext()) { 1035 return true; 1036 } 1037 } 1038 break; 1039 case KeyEvent.KEYCODE_TAB: 1040 if (event.hasNoModifiers()) { 1041 if (mSelectedChip != null) { 1042 clearSelectedChip(); 1043 } else { 1044 commitDefault(); 1045 } 1046 if (focusNext()) { 1047 return true; 1048 } 1049 } 1050 break; 1051 } 1052 return super.onKeyUp(keyCode, event); 1053 } 1054 1055 private boolean focusNext() { 1056 View next = focusSearch(View.FOCUS_DOWN); 1057 if (next != null) { 1058 next.requestFocus(); 1059 return true; 1060 } 1061 return false; 1062 } 1063 1064 /** 1065 * Create a chip from the default selection. If the popup is showing, the 1066 * default is the first item in the popup suggestions list. Otherwise, it is 1067 * whatever the user had typed in. End represents where the the tokenizer 1068 * should search for a token to turn into a chip. 1069 * @return If a chip was created from a real contact. 1070 */ 1071 private boolean commitDefault() { 1072 // If there is no tokenizer, don't try to commit. 1073 if (mTokenizer == null) { 1074 return false; 1075 } 1076 Editable editable = getText(); 1077 int end = getSelectionEnd(); 1078 int start = mTokenizer.findTokenStart(editable, end); 1079 1080 if (shouldCreateChip(start, end)) { 1081 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 1082 // In the middle of chip; treat this as an edit 1083 // and commit the whole token. 1084 if (whatEnd != getSelectionEnd()) { 1085 handleEdit(start, whatEnd); 1086 return true; 1087 } 1088 return commitChip(start, end , editable); 1089 } 1090 return false; 1091 } 1092 1093 private void commitByCharacter() { 1094 // We can't possibly commit by character if we can't tokenize. 1095 if (mTokenizer == null) { 1096 return; 1097 } 1098 Editable editable = getText(); 1099 int end = getSelectionEnd(); 1100 int start = mTokenizer.findTokenStart(editable, end); 1101 if (shouldCreateChip(start, end)) { 1102 commitChip(start, end, editable); 1103 } 1104 setSelection(getText().length()); 1105 } 1106 1107 private boolean commitChip(int start, int end, Editable editable) { 1108 ListAdapter adapter = getAdapter(); 1109 if (adapter != null && adapter.getCount() > 0 && enoughToFilter() 1110 && end == getSelectionEnd() && !isPhoneQuery()) { 1111 // choose the first entry. 1112 submitItemAtPosition(0); 1113 dismissDropDown(); 1114 return true; 1115 } else { 1116 int tokenEnd = mTokenizer.findTokenEnd(editable, start); 1117 if (editable.length() > tokenEnd + 1) { 1118 char charAt = editable.charAt(tokenEnd + 1); 1119 if (charAt == COMMIT_CHAR_COMMA || charAt == COMMIT_CHAR_SEMICOLON) { 1120 tokenEnd++; 1121 } 1122 } 1123 String text = editable.toString().substring(start, tokenEnd).trim(); 1124 clearComposingText(); 1125 if (text != null && text.length() > 0 && !text.equals(" ")) { 1126 RecipientEntry entry = createTokenizedEntry(text); 1127 if (entry != null) { 1128 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1129 CharSequence chipText = createChip(entry, false); 1130 if (chipText != null && start > -1 && end > -1) { 1131 editable.replace(start, end, chipText); 1132 } 1133 } 1134 // Only dismiss the dropdown if it is related to the text we 1135 // just committed. 1136 // For paste, it may not be as there are possibly multiple 1137 // tokens being added. 1138 if (end == getSelectionEnd()) { 1139 dismissDropDown(); 1140 } 1141 sanitizeBetween(); 1142 return true; 1143 } 1144 } 1145 return false; 1146 } 1147 1148 // Visible for testing. 1149 /* package */ void sanitizeBetween() { 1150 // Don't sanitize while we are waiting for content to chipify. 1151 if (mPendingChipsCount > 0) { 1152 return; 1153 } 1154 // Find the last chip. 1155 RecipientChip[] recips = getSortedRecipients(); 1156 if (recips != null && recips.length > 0) { 1157 RecipientChip last = recips[recips.length - 1]; 1158 RecipientChip beforeLast = null; 1159 if (recips.length > 1) { 1160 beforeLast = recips[recips.length - 2]; 1161 } 1162 int startLooking = 0; 1163 int end = getSpannable().getSpanStart(last); 1164 if (beforeLast != null) { 1165 startLooking = getSpannable().getSpanEnd(beforeLast); 1166 Editable text = getText(); 1167 if (startLooking == -1 || startLooking > text.length() - 1) { 1168 // There is nothing after this chip. 1169 return; 1170 } 1171 if (text.charAt(startLooking) == ' ') { 1172 startLooking++; 1173 } 1174 } 1175 if (startLooking >= 0 && end >= 0 && startLooking < end) { 1176 getText().delete(startLooking, end); 1177 } 1178 } 1179 } 1180 1181 private boolean shouldCreateChip(int start, int end) { 1182 return !mNoChips && hasFocus() && enoughToFilter() && !alreadyHasChip(start, end); 1183 } 1184 1185 private boolean alreadyHasChip(int start, int end) { 1186 if (mNoChips) { 1187 return true; 1188 } 1189 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 1190 if ((chips == null || chips.length == 0)) { 1191 return false; 1192 } 1193 return true; 1194 } 1195 1196 private void handleEdit(int start, int end) { 1197 if (start == -1 || end == -1) { 1198 // This chip no longer exists in the field. 1199 dismissDropDown(); 1200 return; 1201 } 1202 // This is in the middle of a chip, so select out the whole chip 1203 // and commit it. 1204 Editable editable = getText(); 1205 setSelection(end); 1206 String text = getText().toString().substring(start, end); 1207 if (!TextUtils.isEmpty(text)) { 1208 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 1209 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1210 CharSequence chipText = createChip(entry, false); 1211 int selEnd = getSelectionEnd(); 1212 if (chipText != null && start > -1 && selEnd > -1) { 1213 editable.replace(start, selEnd, chipText); 1214 } 1215 } 1216 dismissDropDown(); 1217 } 1218 1219 /** 1220 * If there is a selected chip, delegate the key events 1221 * to the selected chip. 1222 */ 1223 @Override 1224 public boolean onKeyDown(int keyCode, KeyEvent event) { 1225 if (mSelectedChip != null && keyCode == KeyEvent.KEYCODE_DEL) { 1226 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1227 mAlternatesPopup.dismiss(); 1228 } 1229 removeChip(mSelectedChip); 1230 } 1231 1232 if (keyCode == KeyEvent.KEYCODE_ENTER && event.hasNoModifiers()) { 1233 return true; 1234 } 1235 1236 return super.onKeyDown(keyCode, event); 1237 } 1238 1239 // Visible for testing. 1240 /* package */ Spannable getSpannable() { 1241 return getText(); 1242 } 1243 1244 private int getChipStart(RecipientChip chip) { 1245 return getSpannable().getSpanStart(chip); 1246 } 1247 1248 private int getChipEnd(RecipientChip chip) { 1249 return getSpannable().getSpanEnd(chip); 1250 } 1251 1252 /** 1253 * Instead of filtering on the entire contents of the edit box, 1254 * this subclass method filters on the range from 1255 * {@link Tokenizer#findTokenStart} to {@link #getSelectionEnd} 1256 * if the length of that range meets or exceeds {@link #getThreshold} 1257 * and makes sure that the range is not already a Chip. 1258 */ 1259 @Override 1260 protected void performFiltering(CharSequence text, int keyCode) { 1261 if (enoughToFilter() && !isCompletedToken(text)) { 1262 int end = getSelectionEnd(); 1263 int start = mTokenizer.findTokenStart(text, end); 1264 // If this is a RecipientChip, don't filter 1265 // on its contents. 1266 Spannable span = getSpannable(); 1267 RecipientChip[] chips = span.getSpans(start, end, RecipientChip.class); 1268 if (chips != null && chips.length > 0) { 1269 return; 1270 } 1271 } 1272 super.performFiltering(text, keyCode); 1273 } 1274 1275 // Visible for testing. 1276 /*package*/ boolean isCompletedToken(CharSequence text) { 1277 if (TextUtils.isEmpty(text)) { 1278 return false; 1279 } 1280 // Check to see if this is a completed token before filtering. 1281 int end = text.length(); 1282 int start = mTokenizer.findTokenStart(text, end); 1283 String token = text.toString().substring(start, end).trim(); 1284 if (!TextUtils.isEmpty(token)) { 1285 char atEnd = token.charAt(token.length() - 1); 1286 return atEnd == COMMIT_CHAR_COMMA || atEnd == COMMIT_CHAR_SEMICOLON; 1287 } 1288 return false; 1289 } 1290 1291 private void clearSelectedChip() { 1292 if (mSelectedChip != null) { 1293 unselectChip(mSelectedChip); 1294 mSelectedChip = null; 1295 } 1296 setCursorVisible(true); 1297 } 1298 1299 /** 1300 * Monitor touch events in the RecipientEditTextView. 1301 * If the view does not have focus, any tap on the view 1302 * will just focus the view. If the view has focus, determine 1303 * if the touch target is a recipient chip. If it is and the chip 1304 * is not selected, select it and clear any other selected chips. 1305 * If it isn't, then select that chip. 1306 */ 1307 @Override 1308 public boolean onTouchEvent(MotionEvent event) { 1309 if (!isFocused()) { 1310 // Ignore any chip taps until this view is focused. 1311 return super.onTouchEvent(event); 1312 } 1313 boolean handled = super.onTouchEvent(event); 1314 int action = event.getAction(); 1315 boolean chipWasSelected = false; 1316 if (mSelectedChip == null) { 1317 mGestureDetector.onTouchEvent(event); 1318 } 1319 if (mCopyAddress == null && action == MotionEvent.ACTION_UP) { 1320 float x = event.getX(); 1321 float y = event.getY(); 1322 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 1323 RecipientChip currentChip = findChip(offset); 1324 if (currentChip != null) { 1325 if (action == MotionEvent.ACTION_UP) { 1326 if (mSelectedChip != null && mSelectedChip != currentChip) { 1327 clearSelectedChip(); 1328 mSelectedChip = selectChip(currentChip); 1329 } else if (mSelectedChip == null) { 1330 setSelection(getText().length()); 1331 commitDefault(); 1332 mSelectedChip = selectChip(currentChip); 1333 } else { 1334 onClick(mSelectedChip, offset, x, y); 1335 } 1336 } 1337 chipWasSelected = true; 1338 handled = true; 1339 } else if (mSelectedChip != null 1340 && mSelectedChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1341 chipWasSelected = true; 1342 } 1343 } 1344 if (action == MotionEvent.ACTION_UP && !chipWasSelected) { 1345 clearSelectedChip(); 1346 } 1347 return handled; 1348 } 1349 1350 private void scrollLineIntoView(int line) { 1351 if (mScrollView != null) { 1352 mScrollView.scrollBy(0, calculateOffsetFromBottom(line)); 1353 } 1354 } 1355 1356 private void showAlternates(RecipientChip currentChip, ListPopupWindow alternatesPopup, 1357 int width, Context context) { 1358 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1359 int bottom; 1360 if (line == getLineCount() -1) { 1361 bottom = 0; 1362 } else { 1363 bottom = -(int) ((mChipHeight + (2 * mLineSpacingExtra)) * (Math.abs(getLineCount() - 1 1364 - line))); 1365 } 1366 // Align the alternates popup with the left side of the View, 1367 // regardless of the position of the chip tapped. 1368 alternatesPopup.setWidth(width); 1369 alternatesPopup.setAnchorView(this); 1370 alternatesPopup.setVerticalOffset(bottom); 1371 alternatesPopup.setAdapter(createAlternatesAdapter(currentChip)); 1372 alternatesPopup.setOnItemClickListener(mAlternatesListener); 1373 // Clear the checked item. 1374 mCheckedItem = -1; 1375 alternatesPopup.show(); 1376 ListView listView = alternatesPopup.getListView(); 1377 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1378 // Checked item would be -1 if the adapter has not 1379 // loaded the view that should be checked yet. The 1380 // variable will be set correctly when onCheckedItemChanged 1381 // is called in a separate thread. 1382 if (mCheckedItem != -1) { 1383 listView.setItemChecked(mCheckedItem, true); 1384 mCheckedItem = -1; 1385 } 1386 } 1387 1388 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 1389 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 1390 mAlternatesLayout, ((BaseRecipientAdapter)getAdapter()).getQueryType(), this); 1391 } 1392 1393 private ListAdapter createSingleAddressAdapter(RecipientChip currentChip) { 1394 return new SingleRecipientArrayAdapter(getContext(), mAlternatesLayout, currentChip 1395 .getEntry()); 1396 } 1397 1398 @Override 1399 public void onCheckedItemChanged(int position) { 1400 ListView listView = mAlternatesPopup.getListView(); 1401 if (listView != null && listView.getCheckedItemCount() == 0) { 1402 listView.setItemChecked(position, true); 1403 } 1404 mCheckedItem = position; 1405 } 1406 1407 // TODO: This algorithm will need a lot of tweaking after more people have used 1408 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 1409 // what comes before the finger. 1410 private int putOffsetInRange(int o) { 1411 int offset = o; 1412 Editable text = getText(); 1413 int length = text.length(); 1414 // Remove whitespace from end to find "real end" 1415 int realLength = length; 1416 for (int i = length - 1; i >= 0; i--) { 1417 if (text.charAt(i) == ' ') { 1418 realLength--; 1419 } else { 1420 break; 1421 } 1422 } 1423 1424 // If the offset is beyond or at the end of the text, 1425 // leave it alone. 1426 if (offset >= realLength) { 1427 return offset; 1428 } 1429 Editable editable = getText(); 1430 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 1431 // Keep walking backward! 1432 offset--; 1433 } 1434 return offset; 1435 } 1436 1437 private int findText(Editable text, int offset) { 1438 if (text.charAt(offset) != ' ') { 1439 return offset; 1440 } 1441 return -1; 1442 } 1443 1444 private RecipientChip findChip(int offset) { 1445 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1446 // Find the chip that contains this offset. 1447 for (int i = 0; i < chips.length; i++) { 1448 RecipientChip chip = chips[i]; 1449 int start = getChipStart(chip); 1450 int end = getChipEnd(chip); 1451 if (offset >= start && offset <= end) { 1452 return chip; 1453 } 1454 } 1455 return null; 1456 } 1457 1458 // Visible for testing. 1459 // Use this method to generate text to add to the list of addresses. 1460 /* package */String createAddressText(RecipientEntry entry) { 1461 String display = entry.getDisplayName(); 1462 String address = entry.getDestination(); 1463 if (TextUtils.isEmpty(display) || TextUtils.equals(display, address)) { 1464 display = null; 1465 } 1466 String trimmedDisplayText; 1467 if (isPhoneQuery() && isPhoneNumber(address)) { 1468 trimmedDisplayText = address.trim(); 1469 } else { 1470 if (address != null) { 1471 // Tokenize out the address in case the address already 1472 // contained the username as well. 1473 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(address); 1474 if (tokenized != null && tokenized.length > 0) { 1475 address = tokenized[0].getAddress(); 1476 } 1477 } 1478 Rfc822Token token = new Rfc822Token(display, address, null); 1479 trimmedDisplayText = token.toString().trim(); 1480 } 1481 int index = trimmedDisplayText.indexOf(","); 1482 return mTokenizer != null && !TextUtils.isEmpty(trimmedDisplayText) 1483 && index < trimmedDisplayText.length() - 1 ? (String) mTokenizer 1484 .terminateToken(trimmedDisplayText) : trimmedDisplayText; 1485 } 1486 1487 // Visible for testing. 1488 // Use this method to generate text to display in a chip. 1489 /*package*/ String createChipDisplayText(RecipientEntry entry) { 1490 String display = entry.getDisplayName(); 1491 String address = entry.getDestination(); 1492 if (TextUtils.isEmpty(display) || TextUtils.equals(display, address)) { 1493 display = null; 1494 } 1495 if (address != null && !(isPhoneQuery() && isPhoneNumber(address))) { 1496 // Tokenize out the address in case the address already 1497 // contained the username as well. 1498 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(address); 1499 if (tokenized != null && tokenized.length > 0) { 1500 address = tokenized[0].getAddress(); 1501 } 1502 } 1503 if (!TextUtils.isEmpty(display)) { 1504 return display; 1505 } else if (!TextUtils.isEmpty(address)){ 1506 return address; 1507 } else { 1508 return new Rfc822Token(display, address, null).toString(); 1509 } 1510 } 1511 1512 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 1513 String displayText = createAddressText(entry); 1514 if (TextUtils.isEmpty(displayText)) { 1515 return null; 1516 } 1517 SpannableString chipText = null; 1518 // Always leave a blank space at the end of a chip. 1519 int end = getSelectionEnd(); 1520 int start = mTokenizer.findTokenStart(getText(), end); 1521 int textLength = displayText.length()-1; 1522 chipText = new SpannableString(displayText); 1523 if (!mNoChips) { 1524 try { 1525 RecipientChip chip = constructChipSpan(entry, start, pressed); 1526 chipText.setSpan(chip, 0, textLength, 1527 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1528 chip.setOriginalText(chipText.toString()); 1529 } catch (NullPointerException e) { 1530 Log.e(TAG, e.getMessage(), e); 1531 return null; 1532 } 1533 } 1534 return chipText; 1535 } 1536 1537 /** 1538 * When an item in the suggestions list has been clicked, create a chip from the 1539 * contact information of the selected item. 1540 */ 1541 @Override 1542 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1543 submitItemAtPosition(position); 1544 } 1545 1546 private void submitItemAtPosition(int position) { 1547 RecipientEntry entry = createValidatedEntry( 1548 (RecipientEntry)getAdapter().getItem(position)); 1549 if (entry == null) { 1550 return; 1551 } 1552 clearComposingText(); 1553 1554 int end = getSelectionEnd(); 1555 int start = mTokenizer.findTokenStart(getText(), end); 1556 1557 Editable editable = getText(); 1558 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1559 CharSequence chip = createChip(entry, false); 1560 if (chip != null && start >= 0 && end >= 0) { 1561 editable.replace(start, end, chip); 1562 } 1563 sanitizeBetween(); 1564 } 1565 1566 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1567 if (item == null) { 1568 return null; 1569 } 1570 final RecipientEntry entry; 1571 // If the display name and the address are the same, or if this is a 1572 // valid contact, but the destination is invalid, then make this a fake 1573 // recipient that is editable. 1574 String destination = item.getDestination(); 1575 if (RecipientEntry.isCreatedRecipient(item.getContactId()) 1576 && (TextUtils.isEmpty(item.getDisplayName()) 1577 || TextUtils.equals(item.getDisplayName(), destination) 1578 || (mValidator != null && !mValidator.isValid(destination)))) { 1579 entry = RecipientEntry.constructFakeEntry(destination); 1580 } else { 1581 entry = item; 1582 } 1583 return entry; 1584 } 1585 1586 /** Returns a collection of contact Id for each chip inside this View. */ 1587 /* package */ Collection<Long> getContactIds() { 1588 final Set<Long> result = new HashSet<Long>(); 1589 RecipientChip[] chips = getSortedRecipients(); 1590 if (chips != null) { 1591 for (RecipientChip chip : chips) { 1592 result.add(chip.getContactId()); 1593 } 1594 } 1595 return result; 1596 } 1597 1598 1599 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1600 /* package */ Collection<Long> getDataIds() { 1601 final Set<Long> result = new HashSet<Long>(); 1602 RecipientChip [] chips = getSortedRecipients(); 1603 if (chips != null) { 1604 for (RecipientChip chip : chips) { 1605 result.add(chip.getDataId()); 1606 } 1607 } 1608 return result; 1609 } 1610 1611 // Visible for testing. 1612 /* package */RecipientChip[] getSortedRecipients() { 1613 RecipientChip[] recips = getSpannable() 1614 .getSpans(0, getText().length(), RecipientChip.class); 1615 ArrayList<RecipientChip> recipientsList = new ArrayList<RecipientChip>(Arrays 1616 .asList(recips)); 1617 final Spannable spannable = getSpannable(); 1618 Collections.sort(recipientsList, new Comparator<RecipientChip>() { 1619 1620 @Override 1621 public int compare(RecipientChip first, RecipientChip second) { 1622 int firstStart = spannable.getSpanStart(first); 1623 int secondStart = spannable.getSpanStart(second); 1624 if (firstStart < secondStart) { 1625 return -1; 1626 } else if (firstStart > secondStart) { 1627 return 1; 1628 } else { 1629 return 0; 1630 } 1631 } 1632 }); 1633 return recipientsList.toArray(new RecipientChip[recipientsList.size()]); 1634 } 1635 1636 @Override 1637 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1638 return false; 1639 } 1640 1641 @Override 1642 public void onDestroyActionMode(ActionMode mode) { 1643 } 1644 1645 @Override 1646 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1647 return false; 1648 } 1649 1650 /** 1651 * No chips are selectable. 1652 */ 1653 @Override 1654 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1655 return false; 1656 } 1657 1658 // Visible for testing. 1659 /* package */ImageSpan getMoreChip() { 1660 MoreImageSpan[] moreSpans = getSpannable().getSpans(0, getText().length(), 1661 MoreImageSpan.class); 1662 return moreSpans != null && moreSpans.length > 0 ? moreSpans[0] : null; 1663 } 1664 1665 private MoreImageSpan createMoreSpan(int count) { 1666 String moreText = String.format(mMoreItem.getText().toString(), count); 1667 TextPaint morePaint = new TextPaint(getPaint()); 1668 morePaint.setTextSize(mMoreItem.getTextSize()); 1669 morePaint.setColor(mMoreItem.getCurrentTextColor()); 1670 int width = (int)morePaint.measureText(moreText) + mMoreItem.getPaddingLeft() 1671 + mMoreItem.getPaddingRight(); 1672 int height = getLineHeight(); 1673 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1674 Canvas canvas = new Canvas(drawable); 1675 int adjustedHeight = height; 1676 Layout layout = getLayout(); 1677 if (layout != null) { 1678 adjustedHeight -= layout.getLineDescent(0); 1679 } 1680 canvas.drawText(moreText, 0, moreText.length(), 0, adjustedHeight, morePaint); 1681 1682 Drawable result = new BitmapDrawable(getResources(), drawable); 1683 result.setBounds(0, 0, width, height); 1684 return new MoreImageSpan(result); 1685 } 1686 1687 // Visible for testing. 1688 /*package*/ void createMoreChipPlainText() { 1689 // Take the first <= CHIP_LIMIT addresses and get to the end of the second one. 1690 Editable text = getText(); 1691 int start = 0; 1692 int end = start; 1693 for (int i = 0; i < CHIP_LIMIT; i++) { 1694 end = movePastTerminators(mTokenizer.findTokenEnd(text, start)); 1695 start = end; // move to the next token and get its end. 1696 } 1697 // Now, count total addresses. 1698 start = 0; 1699 int tokenCount = countTokens(text); 1700 MoreImageSpan moreSpan = createMoreSpan(tokenCount - CHIP_LIMIT); 1701 SpannableString chipText = new SpannableString(text.subSequence(end, text.length())); 1702 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1703 text.replace(end, text.length(), chipText); 1704 mMoreChip = moreSpan; 1705 } 1706 1707 // Visible for testing. 1708 /* package */int countTokens(Editable text) { 1709 int tokenCount = 0; 1710 int start = 0; 1711 while (start < text.length()) { 1712 start = movePastTerminators(mTokenizer.findTokenEnd(text, start)); 1713 tokenCount++; 1714 if (start >= text.length()) { 1715 break; 1716 } 1717 } 1718 return tokenCount; 1719 } 1720 1721 /** 1722 * Create the more chip. The more chip is text that replaces any chips that 1723 * do not fit in the pre-defined available space when the 1724 * RecipientEditTextView loses focus. 1725 */ 1726 // Visible for testing. 1727 /* package */ void createMoreChip() { 1728 if (mNoChips) { 1729 createMoreChipPlainText(); 1730 return; 1731 } 1732 1733 if (!mShouldShrink) { 1734 return; 1735 } 1736 1737 ImageSpan[] tempMore = getSpannable().getSpans(0, getText().length(), MoreImageSpan.class); 1738 if (tempMore.length > 0) { 1739 getSpannable().removeSpan(tempMore[0]); 1740 } 1741 RecipientChip[] recipients = getSortedRecipients(); 1742 1743 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1744 mMoreChip = null; 1745 return; 1746 } 1747 Spannable spannable = getSpannable(); 1748 int numRecipients = recipients.length; 1749 int overage = numRecipients - CHIP_LIMIT; 1750 MoreImageSpan moreSpan = createMoreSpan(overage); 1751 mRemovedSpans = new ArrayList<RecipientChip>(); 1752 int totalReplaceStart = 0; 1753 int totalReplaceEnd = 0; 1754 Editable text = getText(); 1755 for (int i = numRecipients - overage; i < recipients.length; i++) { 1756 mRemovedSpans.add(recipients[i]); 1757 if (i == numRecipients - overage) { 1758 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1759 } 1760 if (i == recipients.length - 1) { 1761 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1762 } 1763 if (mTemporaryRecipients == null || !mTemporaryRecipients.contains(recipients[i])) { 1764 int spanStart = spannable.getSpanStart(recipients[i]); 1765 int spanEnd = spannable.getSpanEnd(recipients[i]); 1766 recipients[i].setOriginalText(text.toString().substring(spanStart, spanEnd)); 1767 } 1768 spannable.removeSpan(recipients[i]); 1769 } 1770 if (totalReplaceEnd < text.length()) { 1771 totalReplaceEnd = text.length(); 1772 } 1773 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1774 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1775 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1776 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1777 text.replace(start, end, chipText); 1778 mMoreChip = moreSpan; 1779 } 1780 1781 /** 1782 * Replace the more chip, if it exists, with all of the recipient chips it had 1783 * replaced when the RecipientEditTextView gains focus. 1784 */ 1785 // Visible for testing. 1786 /*package*/ void removeMoreChip() { 1787 if (mMoreChip != null) { 1788 Spannable span = getSpannable(); 1789 span.removeSpan(mMoreChip); 1790 mMoreChip = null; 1791 // Re-add the spans that were removed. 1792 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1793 // Recreate each removed span. 1794 RecipientChip[] recipients = getSortedRecipients(); 1795 // Start the search for tokens after the last currently visible 1796 // chip. 1797 if (recipients == null || recipients.length == 0) { 1798 return; 1799 } 1800 int end = span.getSpanEnd(recipients[recipients.length - 1]); 1801 Editable editable = getText(); 1802 for (RecipientChip chip : mRemovedSpans) { 1803 int chipStart; 1804 int chipEnd; 1805 String token; 1806 // Need to find the location of the chip, again. 1807 token = (String) chip.getOriginalText(); 1808 // As we find the matching recipient for the remove spans, 1809 // reduce the size of the string we need to search. 1810 // That way, if there are duplicates, we always find the correct 1811 // recipient. 1812 chipStart = editable.toString().indexOf(token, end); 1813 end = chipEnd = Math.min(editable.length(), chipStart + token.length()); 1814 // Only set the span if we found a matching token. 1815 if (chipStart != -1) { 1816 editable.setSpan(chip, chipStart, chipEnd, 1817 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1818 } 1819 } 1820 mRemovedSpans.clear(); 1821 } 1822 } 1823 } 1824 1825 /** 1826 * Show specified chip as selected. If the RecipientChip is just an email address, 1827 * selecting the chip will take the contents of the chip and place it at 1828 * the end of the RecipientEditTextView for inline editing. If the 1829 * RecipientChip is a complete contact, then selecting the chip 1830 * will change the background color of the chip, show the delete icon, 1831 * and a popup window with the address in use highlighted and any other 1832 * alternate addresses for the contact. 1833 * @param currentChip Chip to select. 1834 * @return A RecipientChip in the selected state or null if the chip 1835 * just contained an email address. 1836 */ 1837 private RecipientChip selectChip(RecipientChip currentChip) { 1838 if (currentChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1839 CharSequence text = currentChip.getValue(); 1840 Editable editable = getText(); 1841 removeChip(currentChip); 1842 editable.append(text); 1843 setCursorVisible(true); 1844 setSelection(editable.length()); 1845 return new RecipientChip(null, RecipientEntry.constructFakeEntry((String) text), -1); 1846 } else if (currentChip.getContactId() == RecipientEntry.GENERATED_CONTACT) { 1847 int start = getChipStart(currentChip); 1848 int end = getChipEnd(currentChip); 1849 getSpannable().removeSpan(currentChip); 1850 RecipientChip newChip; 1851 try { 1852 if (mNoChips) { 1853 return null; 1854 } 1855 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1856 } catch (NullPointerException e) { 1857 Log.e(TAG, e.getMessage(), e); 1858 return null; 1859 } 1860 Editable editable = getText(); 1861 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1862 if (start == -1 || end == -1) { 1863 Log.d(TAG, "The chip being selected no longer exists but should."); 1864 } else { 1865 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1866 } 1867 newChip.setSelected(true); 1868 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1869 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1870 } 1871 showAddress(newChip, mAddressPopup, getWidth(), getContext()); 1872 setCursorVisible(false); 1873 return newChip; 1874 } else { 1875 int start = getChipStart(currentChip); 1876 int end = getChipEnd(currentChip); 1877 getSpannable().removeSpan(currentChip); 1878 RecipientChip newChip; 1879 try { 1880 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1881 } catch (NullPointerException e) { 1882 Log.e(TAG, e.getMessage(), e); 1883 return null; 1884 } 1885 Editable editable = getText(); 1886 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1887 if (start == -1 || end == -1) { 1888 Log.d(TAG, "The chip being selected no longer exists but should."); 1889 } else { 1890 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1891 } 1892 newChip.setSelected(true); 1893 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1894 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1895 } 1896 showAlternates(newChip, mAlternatesPopup, getWidth(), getContext()); 1897 setCursorVisible(false); 1898 return newChip; 1899 } 1900 } 1901 1902 1903 private void showAddress(final RecipientChip currentChip, final ListPopupWindow popup, 1904 int width, Context context) { 1905 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1906 int bottom = calculateOffsetFromBottom(line); 1907 // Align the alternates popup with the left side of the View, 1908 // regardless of the position of the chip tapped. 1909 popup.setWidth(width); 1910 popup.setAnchorView(this); 1911 popup.setVerticalOffset(bottom); 1912 popup.setAdapter(createSingleAddressAdapter(currentChip)); 1913 popup.setOnItemClickListener(new OnItemClickListener() { 1914 @Override 1915 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1916 unselectChip(currentChip); 1917 popup.dismiss(); 1918 } 1919 }); 1920 popup.show(); 1921 ListView listView = popup.getListView(); 1922 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1923 listView.setItemChecked(0, true); 1924 } 1925 1926 /** 1927 * Remove selection from this chip. Unselecting a RecipientChip will render 1928 * the chip without a delete icon and with an unfocused background. This is 1929 * called when the RecipientChip no longer has focus. 1930 */ 1931 private void unselectChip(RecipientChip chip) { 1932 int start = getChipStart(chip); 1933 int end = getChipEnd(chip); 1934 Editable editable = getText(); 1935 mSelectedChip = null; 1936 if (start == -1 || end == -1) { 1937 Log.w(TAG, "The chip doesn't exist or may be a chip a user was editing"); 1938 setSelection(editable.length()); 1939 commitDefault(); 1940 } else { 1941 getSpannable().removeSpan(chip); 1942 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1943 editable.removeSpan(chip); 1944 try { 1945 if (!mNoChips) { 1946 editable.setSpan(constructChipSpan(chip.getEntry(), start, false), start, end, 1947 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1948 } 1949 } catch (NullPointerException e) { 1950 Log.e(TAG, e.getMessage(), e); 1951 } 1952 } 1953 setCursorVisible(true); 1954 setSelection(editable.length()); 1955 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1956 mAlternatesPopup.dismiss(); 1957 } 1958 } 1959 1960 /** 1961 * Return whether a touch event was inside the delete target of 1962 * a selected chip. It is in the delete target if: 1963 * 1) the x and y points of the event are within the 1964 * delete assset. 1965 * 2) the point tapped would have caused a cursor to appear 1966 * right after the selected chip. 1967 * @return boolean 1968 */ 1969 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1970 // Figure out the bounds of this chip and whether or not 1971 // the user clicked in the X portion. 1972 return chip.isSelected() && offset == getChipEnd(chip); 1973 } 1974 1975 /** 1976 * Remove the chip and any text associated with it from the RecipientEditTextView. 1977 */ 1978 // Visible for testing. 1979 /*pacakge*/ void removeChip(RecipientChip chip) { 1980 Spannable spannable = getSpannable(); 1981 int spanStart = spannable.getSpanStart(chip); 1982 int spanEnd = spannable.getSpanEnd(chip); 1983 Editable text = getText(); 1984 int toDelete = spanEnd; 1985 boolean wasSelected = chip == mSelectedChip; 1986 // Clear that there is a selected chip before updating any text. 1987 if (wasSelected) { 1988 mSelectedChip = null; 1989 } 1990 // Always remove trailing spaces when removing a chip. 1991 while (toDelete >= 0 && toDelete < text.length() && text.charAt(toDelete) == ' ') { 1992 toDelete++; 1993 } 1994 spannable.removeSpan(chip); 1995 if (spanStart >= 0 && toDelete > 0) { 1996 text.delete(spanStart, toDelete); 1997 } 1998 if (wasSelected) { 1999 clearSelectedChip(); 2000 } 2001 } 2002 2003 /** 2004 * Replace this currently selected chip with a new chip 2005 * that uses the contact data provided. 2006 */ 2007 // Visible for testing. 2008 /*package*/ void replaceChip(RecipientChip chip, RecipientEntry entry) { 2009 boolean wasSelected = chip == mSelectedChip; 2010 if (wasSelected) { 2011 mSelectedChip = null; 2012 } 2013 int start = getChipStart(chip); 2014 int end = getChipEnd(chip); 2015 getSpannable().removeSpan(chip); 2016 Editable editable = getText(); 2017 CharSequence chipText = createChip(entry, false); 2018 if (chipText != null) { 2019 if (start == -1 || end == -1) { 2020 Log.e(TAG, "The chip to replace does not exist but should."); 2021 editable.insert(0, chipText); 2022 } else { 2023 if (!TextUtils.isEmpty(chipText)) { 2024 // There may be a space to replace with this chip's new 2025 // associated 2026 // 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(text, tokenStart)); 2239 commitChip(tokenStart, tokenEnd, getText()); 2240 createdChip = findChip(tokenStart); 2241 if (createdChip == null) { 2242 break; 2243 } 2244 // +1 for the space at the end. 2245 tokenStart = getSpannable().getSpanEnd(createdChip) + 1; 2246 created.add(createdChip); 2247 } 2248 } 2249 } 2250 // Take a look at the last token. If the token has been completed with a 2251 // commit character, create a chip. 2252 if (isCompletedToken(lastAddress)) { 2253 Editable editable = getText(); 2254 tokenStart = editable.toString().indexOf(lastAddress, originalTokenStart); 2255 commitChip(tokenStart, editable.length(), editable); 2256 created.add(findChip(tokenStart)); 2257 } 2258 return created; 2259 } 2260 2261 // Visible for testing. 2262 /* package */int movePastTerminators(int tokenEnd) { 2263 if (tokenEnd >= length()) { 2264 return tokenEnd; 2265 } 2266 char atEnd = getText().toString().charAt(tokenEnd); 2267 if (atEnd == COMMIT_CHAR_COMMA || atEnd == COMMIT_CHAR_SEMICOLON) { 2268 tokenEnd++; 2269 } 2270 // This token had not only an end token character, but also a space 2271 // separating it from the next token. 2272 if (tokenEnd < length() && getText().toString().charAt(tokenEnd) == ' ') { 2273 tokenEnd++; 2274 } 2275 return tokenEnd; 2276 } 2277 2278 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 2279 private RecipientChip createFreeChip(RecipientEntry entry) { 2280 try { 2281 if (mNoChips) { 2282 return null; 2283 } 2284 return constructChipSpan(entry, -1, false); 2285 } catch (NullPointerException e) { 2286 Log.e(TAG, e.getMessage(), e); 2287 return null; 2288 } 2289 } 2290 2291 @Override 2292 protected Void doInBackground(Void... params) { 2293 if (mIndividualReplacements != null) { 2294 mIndividualReplacements.cancel(true); 2295 } 2296 // For each chip in the list, look up the matching contact. 2297 // If there is a match, replace that chip with the matching 2298 // chip. 2299 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 2300 RecipientChip[] existingChips = getSortedRecipients(); 2301 for (int i = 0; i < existingChips.length; i++) { 2302 originalRecipients.add(existingChips[i]); 2303 } 2304 if (mRemovedSpans != null) { 2305 originalRecipients.addAll(mRemovedSpans); 2306 } 2307 ArrayList<String> addresses = new ArrayList<String>(); 2308 RecipientChip chip; 2309 for (int i = 0; i < originalRecipients.size(); i++) { 2310 chip = originalRecipients.get(i); 2311 if (chip != null) { 2312 addresses.add(createAddressText(chip.getEntry())); 2313 } 2314 } 2315 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 2316 .getMatchingRecipients(getContext(), addresses); 2317 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 2318 for (final RecipientChip temp : originalRecipients) { 2319 RecipientEntry entry = null; 2320 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 2321 && getSpannable().getSpanStart(temp) != -1) { 2322 // Replace this. 2323 entry = createValidatedEntry(entries.get(tokenizeAddress(temp.getEntry() 2324 .getDestination()))); 2325 } 2326 if (entry != null) { 2327 replacements.add(createFreeChip(entry)); 2328 } else { 2329 replacements.add(temp); 2330 } 2331 } 2332 if (replacements != null && replacements.size() > 0) { 2333 mHandler.post(new Runnable() { 2334 @Override 2335 public void run() { 2336 SpannableStringBuilder text = new SpannableStringBuilder(getText() 2337 .toString()); 2338 Editable oldText = getText(); 2339 int start, end; 2340 int i = 0; 2341 for (RecipientChip chip : originalRecipients) { 2342 start = oldText.getSpanStart(chip); 2343 if (start != -1) { 2344 end = oldText.getSpanEnd(chip); 2345 oldText.removeSpan(chip); 2346 // Leave a spot for the space! 2347 RecipientChip replacement = replacements.get(i); 2348 text.setSpan(replacement, start, end, 2349 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 2350 replacement.setOriginalText(text.toString().substring(start, end)); 2351 } 2352 i++; 2353 } 2354 originalRecipients.clear(); 2355 setText(text); 2356 } 2357 }); 2358 } 2359 return null; 2360 } 2361 } 2362 2363 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 2364 @SuppressWarnings("unchecked") 2365 @Override 2366 protected Void doInBackground(Object... params) { 2367 // For each chip in the list, look up the matching contact. 2368 // If there is a match, replace that chip with the matching 2369 // chip. 2370 final ArrayList<RecipientChip> originalRecipients = 2371 (ArrayList<RecipientChip>) params[0]; 2372 ArrayList<String> addresses = new ArrayList<String>(); 2373 RecipientChip chip; 2374 for (int i = 0; i < originalRecipients.size(); i++) { 2375 chip = originalRecipients.get(i); 2376 if (chip != null) { 2377 addresses.add(createAddressText(chip.getEntry())); 2378 } 2379 } 2380 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 2381 .getMatchingRecipients(getContext(), addresses); 2382 for (final RecipientChip temp : originalRecipients) { 2383 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 2384 && getSpannable().getSpanStart(temp) != -1) { 2385 // Replace this. 2386 final RecipientEntry entry = createValidatedEntry(entries 2387 .get(tokenizeAddress(temp.getEntry().getDestination()).toLowerCase())); 2388 if (entry != null) { 2389 mHandler.post(new Runnable() { 2390 @Override 2391 public void run() { 2392 replaceChip(temp, entry); 2393 } 2394 }); 2395 } 2396 } 2397 } 2398 return null; 2399 } 2400 } 2401 2402 2403 /** 2404 * MoreImageSpan is a simple class created for tracking the existence of a 2405 * more chip across activity restarts/ 2406 */ 2407 private class MoreImageSpan extends ImageSpan { 2408 public MoreImageSpan(Drawable b) { 2409 super(b); 2410 } 2411 } 2412 2413 @Override 2414 public boolean onDown(MotionEvent e) { 2415 return false; 2416 } 2417 2418 @Override 2419 public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { 2420 // Do nothing. 2421 return false; 2422 } 2423 2424 @Override 2425 public void onLongPress(MotionEvent event) { 2426 if (mSelectedChip != null) { 2427 return; 2428 } 2429 float x = event.getX(); 2430 float y = event.getY(); 2431 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 2432 RecipientChip currentChip = findChip(offset); 2433 if (currentChip != null) { 2434 if (mDragEnabled) { 2435 // Start drag-and-drop for the selected chip. 2436 startDrag(currentChip); 2437 } else { 2438 // Copy the selected chip email address. 2439 showCopyDialog(currentChip.getEntry().getDestination()); 2440 } 2441 } 2442 } 2443 2444 /** 2445 * Enables drag-and-drop for chips. 2446 */ 2447 public void enableDrag() { 2448 mDragEnabled = true; 2449 } 2450 2451 /** 2452 * Starts drag-and-drop for the selected chip. 2453 */ 2454 private void startDrag(RecipientChip currentChip) { 2455 String address = currentChip.getEntry().getDestination(); 2456 ClipData data = ClipData.newPlainText(address, address + COMMIT_CHAR_COMMA); 2457 2458 // Start drag mode. 2459 startDrag(data, new RecipientChipShadow(currentChip), null, 0); 2460 2461 // Remove the current chip, so drag-and-drop will result in a move. 2462 // TODO (phamm): consider readd this chip if it's dropped outside a target. 2463 removeChip(currentChip); 2464 } 2465 2466 /** 2467 * Handles drag event. 2468 */ 2469 @Override 2470 public boolean onDragEvent(DragEvent event) { 2471 switch (event.getAction()) { 2472 case DragEvent.ACTION_DRAG_STARTED: 2473 // Only handle plain text drag and drop. 2474 return event.getClipDescription().hasMimeType(ClipDescription.MIMETYPE_TEXT_PLAIN); 2475 case DragEvent.ACTION_DRAG_ENTERED: 2476 requestFocus(); 2477 return true; 2478 case DragEvent.ACTION_DROP: 2479 handlePasteClip(event.getClipData()); 2480 return true; 2481 } 2482 return false; 2483 } 2484 2485 /** 2486 * Drag shadow for a {@link RecipientChip}. 2487 */ 2488 private final class RecipientChipShadow extends DragShadowBuilder { 2489 private final RecipientChip mChip; 2490 2491 public RecipientChipShadow(RecipientChip chip) { 2492 mChip = chip; 2493 } 2494 2495 @Override 2496 public void onProvideShadowMetrics(Point shadowSize, Point shadowTouchPoint) { 2497 Rect rect = mChip.getDrawable().getBounds(); 2498 shadowSize.set(rect.width(), rect.height()); 2499 shadowTouchPoint.set(rect.centerX(), rect.centerY()); 2500 } 2501 2502 @Override 2503 public void onDrawShadow(Canvas canvas) { 2504 mChip.getDrawable().draw(canvas); 2505 } 2506 } 2507 2508 private void showCopyDialog(final String address) { 2509 mCopyAddress = address; 2510 mCopyDialog.setTitle(address); 2511 mCopyDialog.setContentView(R.layout.copy_chip_dialog_layout); 2512 mCopyDialog.setCancelable(true); 2513 mCopyDialog.setCanceledOnTouchOutside(true); 2514 Button button = (Button)mCopyDialog.findViewById(android.R.id.button1); 2515 button.setOnClickListener(this); 2516 int btnTitleId; 2517 if (isPhoneQuery()) { 2518 btnTitleId = R.string.copy_number; 2519 } else { 2520 btnTitleId = R.string.copy_email; 2521 } 2522 String buttonTitle = getContext().getResources().getString(btnTitleId); 2523 button.setText(buttonTitle); 2524 mCopyDialog.setOnDismissListener(this); 2525 mCopyDialog.show(); 2526 } 2527 2528 @Override 2529 public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) { 2530 // Do nothing. 2531 return false; 2532 } 2533 2534 @Override 2535 public void onShowPress(MotionEvent e) { 2536 // Do nothing. 2537 } 2538 2539 @Override 2540 public boolean onSingleTapUp(MotionEvent e) { 2541 // Do nothing. 2542 return false; 2543 } 2544 2545 @Override 2546 public void onDismiss(DialogInterface dialog) { 2547 mCopyAddress = null; 2548 } 2549 2550 @Override 2551 public void onClick(View v) { 2552 // Copy this to the clipboard. 2553 ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService( 2554 Context.CLIPBOARD_SERVICE); 2555 clipboard.setPrimaryClip(ClipData.newPlainText("", mCopyAddress)); 2556 mCopyDialog.dismiss(); 2557 } 2558 2559 protected boolean isPhoneQuery() { 2560 return getAdapter() != null 2561 && ((BaseRecipientAdapter) getAdapter()).getQueryType() 2562 == BaseRecipientAdapter.QUERY_TYPE_PHONE; 2563 } 2564} 2565