RecipientEditTextView.java revision 2b34f22154da3a0c0df951d65c3250a1b11e1ed1
1/* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.ex.chips; 18 19import android.app.Dialog; 20import android.content.ClipData; 21import android.content.ClipDescription; 22import android.content.ClipboardManager; 23import android.content.Context; 24import android.content.DialogInterface; 25import android.content.DialogInterface.OnDismissListener; 26import android.content.res.Resources; 27import android.content.res.TypedArray; 28import android.graphics.Bitmap; 29import android.graphics.BitmapFactory; 30import android.graphics.Canvas; 31import android.graphics.Matrix; 32import android.graphics.Point; 33import android.graphics.Rect; 34import android.graphics.RectF; 35import android.graphics.drawable.BitmapDrawable; 36import android.graphics.drawable.Drawable; 37import android.os.AsyncTask; 38import android.os.Handler; 39import android.os.Message; 40import android.os.Parcelable; 41import android.text.Editable; 42import android.text.InputType; 43import android.text.Layout; 44import android.text.Spannable; 45import android.text.SpannableString; 46import android.text.SpannableStringBuilder; 47import android.text.Spanned; 48import android.text.TextPaint; 49import android.text.TextUtils; 50import android.text.TextWatcher; 51import android.text.method.QwertyKeyListener; 52import android.text.style.ImageSpan; 53import android.text.util.Rfc822Token; 54import android.text.util.Rfc822Tokenizer; 55import android.util.AttributeSet; 56import android.util.Log; 57import android.view.ActionMode; 58import android.view.ActionMode.Callback; 59import android.view.DragEvent; 60import android.view.GestureDetector; 61import android.view.KeyEvent; 62import android.view.LayoutInflater; 63import android.view.Menu; 64import android.view.MenuItem; 65import android.view.MotionEvent; 66import android.view.View; 67import android.view.View.OnClickListener; 68import android.view.ViewParent; 69import android.widget.AdapterView; 70import android.widget.AdapterView.OnItemClickListener; 71import android.widget.ListAdapter; 72import android.widget.ListPopupWindow; 73import android.widget.ListView; 74import android.widget.MultiAutoCompleteTextView; 75import android.widget.PopupWindow; 76import android.widget.ScrollView; 77import android.widget.TextView; 78 79import java.util.ArrayList; 80import java.util.Arrays; 81import java.util.Collection; 82import java.util.Collections; 83import java.util.Comparator; 84import java.util.HashMap; 85import java.util.HashSet; 86import java.util.Set; 87 88/** 89 * RecipientEditTextView is an auto complete text view for use with applications 90 * that use the new Chips UI for addressing a message to recipients. 91 */ 92public class RecipientEditTextView extends MultiAutoCompleteTextView implements 93 OnItemClickListener, Callback, RecipientAlternatesAdapter.OnCheckedItemChangedListener, 94 GestureDetector.OnGestureListener, OnDismissListener, OnClickListener, 95 PopupWindow.OnDismissListener { 96 97 private static final char COMMIT_CHAR_COMMA = ','; 98 99 private static final char COMMIT_CHAR_SEMICOLON = ';'; 100 101 private static final char COMMIT_CHAR_SPACE = ' '; 102 103 private static final String TAG = "RecipientEditTextView"; 104 105 private static int DISMISS = "dismiss".hashCode(); 106 107 private static final long DISMISS_DELAY = 300; 108 109 // TODO: get correct number/ algorithm from with UX. 110 // Visible for testing. 111 /*package*/ static final int CHIP_LIMIT = 2; 112 113 private static final int MAX_CHIPS_PARSED = 50; 114 115 private static int sSelectedTextColor = -1; 116 117 // Resources for displaying chips. 118 private Drawable mChipBackground = null; 119 120 private Drawable mChipDelete = null; 121 122 private Drawable mInvalidChipBackground; 123 124 private Drawable mChipBackgroundPressed; 125 126 private float mChipHeight; 127 128 private float mChipFontSize; 129 130 private int mChipPadding; 131 132 private Tokenizer mTokenizer; 133 134 private Validator mValidator; 135 136 private RecipientChip mSelectedChip; 137 138 private int mAlternatesLayout; 139 140 private Bitmap mDefaultContactPhoto; 141 142 private ImageSpan mMoreChip; 143 144 private TextView mMoreItem; 145 146 private final ArrayList<String> mPendingChips = new ArrayList<String>(); 147 148 private Handler mHandler; 149 150 private int mPendingChipsCount = 0; 151 152 private boolean mNoChips = false; 153 154 private ListPopupWindow mAlternatesPopup; 155 156 private ListPopupWindow mAddressPopup; 157 158 private ArrayList<RecipientChip> mTemporaryRecipients; 159 160 private ArrayList<RecipientChip> mRemovedSpans; 161 162 private boolean mShouldShrink = true; 163 164 // Chip copy fields. 165 private GestureDetector mGestureDetector; 166 167 private Dialog mCopyDialog; 168 169 private String mCopyAddress; 170 171 /** 172 * Used with {@link #mAlternatesPopup}. Handles clicks to alternate addresses for a 173 * selected chip. 174 */ 175 private OnItemClickListener mAlternatesListener; 176 177 private int mCheckedItem; 178 179 private TextWatcher mTextWatcher; 180 181 // Obtain the enclosing scroll view, if it exists, so that the view can be 182 // scrolled to show the last line of chips content. 183 private ScrollView mScrollView; 184 185 private boolean mTriedGettingScrollView; 186 187 private boolean mDragEnabled = false; 188 189 private final Runnable mAddTextWatcher = new Runnable() { 190 @Override 191 public void run() { 192 if (mTextWatcher == null) { 193 mTextWatcher = new RecipientTextWatcher(); 194 addTextChangedListener(mTextWatcher); 195 } 196 } 197 }; 198 199 private IndividualReplacementTask mIndividualReplacements; 200 201 private Runnable mHandlePendingChips = new Runnable() { 202 203 @Override 204 public void run() { 205 handlePendingChips(); 206 } 207 208 }; 209 210 private Runnable mDelayedShrink = new Runnable() { 211 212 @Override 213 public void run() { 214 shrink(); 215 } 216 217 }; 218 219 public RecipientEditTextView(Context context, AttributeSet attrs) { 220 super(context, attrs); 221 setChipDimensions(context, attrs); 222 if (sSelectedTextColor == -1) { 223 sSelectedTextColor = context.getResources().getColor(android.R.color.white); 224 } 225 mAlternatesPopup = new ListPopupWindow(context); 226 mAlternatesPopup.setOnDismissListener(this); 227 mAddressPopup = new ListPopupWindow(context); 228 mAddressPopup.setOnDismissListener(this); 229 mCopyDialog = new Dialog(context); 230 mAlternatesListener = new OnItemClickListener() { 231 @Override 232 public void onItemClick(AdapterView<?> adapterView,View view, int position, 233 long rowId) { 234 mAlternatesPopup.setOnItemClickListener(null); 235 setEnabled(true); 236 replaceChip(mSelectedChip, ((RecipientAlternatesAdapter) adapterView.getAdapter()) 237 .getRecipientEntry(position)); 238 Message delayed = Message.obtain(mHandler, DISMISS); 239 delayed.obj = mAlternatesPopup; 240 mHandler.sendMessageDelayed(delayed, DISMISS_DELAY); 241 clearComposingText(); 242 } 243 }; 244 setInputType(getInputType() | InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS); 245 setOnItemClickListener(this); 246 setCustomSelectionActionModeCallback(this); 247 mHandler = new Handler() { 248 @Override 249 public void handleMessage(Message msg) { 250 if (msg.what == DISMISS) { 251 ((ListPopupWindow) msg.obj).dismiss(); 252 return; 253 } 254 super.handleMessage(msg); 255 } 256 }; 257 mTextWatcher = new RecipientTextWatcher(); 258 addTextChangedListener(mTextWatcher); 259 mGestureDetector = new GestureDetector(context, this); 260 } 261 262 /*package*/ RecipientChip getLastChip() { 263 RecipientChip last = null; 264 RecipientChip[] chips = getSortedRecipients(); 265 if (chips != null && chips.length > 0) { 266 last = chips[chips.length - 1]; 267 } 268 return last; 269 } 270 271 @Override 272 public void onSelectionChanged(int start, int end) { 273 // When selection changes, see if it is inside the chips area. 274 // If so, move the cursor back after the chips again. 275 RecipientChip last = getLastChip(); 276 if (last != null && start < getSpannable().getSpanEnd(last)) { 277 // Grab the last chip and set the cursor to after it. 278 setSelection(Math.min(getSpannable().getSpanEnd(last) + 1, getText().length())); 279 } 280 super.onSelectionChanged(start, end); 281 } 282 283 @Override 284 public void onRestoreInstanceState(Parcelable state) { 285 if (!TextUtils.isEmpty(getText())) { 286 super.onRestoreInstanceState(null); 287 } else { 288 super.onRestoreInstanceState(state); 289 } 290 } 291 292 @Override 293 public Parcelable onSaveInstanceState() { 294 // If the user changes orientation while they are editing, just roll back the selection. 295 clearSelectedChip(); 296 return super.onSaveInstanceState(); 297 } 298 299 /** 300 * Convenience method: Append the specified text slice to the TextView's 301 * display buffer, upgrading it to BufferType.EDITABLE if it was 302 * not already editable. Commas are excluded as they are added automatically 303 * by the view. 304 */ 305 @Override 306 public void append(CharSequence text, int start, int end) { 307 // We don't care about watching text changes while appending. 308 if (mTextWatcher != null) { 309 removeTextChangedListener(mTextWatcher); 310 } 311 super.append(text, start, end); 312 if (!TextUtils.isEmpty(text) && TextUtils.getTrimmedLength(text) > 0) { 313 final String displayString = (String) text; 314 int seperatorPos = displayString.indexOf(COMMIT_CHAR_COMMA); 315 if (seperatorPos != 0 && !TextUtils.isEmpty(displayString) 316 && TextUtils.getTrimmedLength(displayString) > 0) { 317 mPendingChipsCount++; 318 mPendingChips.add((String)text); 319 } 320 } 321 // Put a message on the queue to make sure we ALWAYS handle pending chips. 322 if (mPendingChipsCount > 0) { 323 postHandlePendingChips(); 324 } 325 mHandler.post(mAddTextWatcher); 326 } 327 328 @Override 329 public void onFocusChanged(boolean hasFocus, int direction, Rect previous) { 330 super.onFocusChanged(hasFocus, direction, previous); 331 if (!hasFocus) { 332 shrink(); 333 } else { 334 expand(); 335 } 336 } 337 338 @Override 339 public void performValidation() { 340 // Do nothing. Chips handles its own validation. 341 } 342 343 private void shrink() { 344 if (mTokenizer == null) { 345 return; 346 } 347 if (mSelectedChip != null 348 && mSelectedChip.getEntry().getContactId() != RecipientEntry.INVALID_CONTACT) { 349 clearSelectedChip(); 350 } else { 351 if (getWidth() <= 0) { 352 // We don't have the width yet which means the view hasn't been drawn yet 353 // and there is no reason to attempt to commit chips yet. 354 // This focus lost must be the result of an orientation change 355 // or an initial rendering. 356 // Re-post the shrink for later. 357 mHandler.removeCallbacks(mDelayedShrink); 358 mHandler.post(mDelayedShrink); 359 return; 360 } 361 // Reset any pending chips as they would have been handled 362 // when the field lost focus. 363 if (mPendingChipsCount > 0) { 364 postHandlePendingChips(); 365 } else { 366 Editable editable = getText(); 367 int end = getSelectionEnd(); 368 int start = mTokenizer.findTokenStart(editable, end); 369 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 370 if ((chips == null || chips.length == 0)) { 371 Editable text = getText(); 372 int whatEnd = mTokenizer.findTokenEnd(text, start); 373 // This token was already tokenized, so skip past the ending token. 374 if (whatEnd < text.length() && text.charAt(whatEnd) == ',') { 375 whatEnd++; 376 } 377 // In the middle of chip; treat this as an edit 378 // and commit the whole token. 379 int selEnd = getSelectionEnd(); 380 if (whatEnd != selEnd) { 381 handleEdit(start, whatEnd); 382 } else { 383 commitChip(start, end, editable); 384 } 385 } 386 } 387 mHandler.post(mAddTextWatcher); 388 } 389 createMoreChip(); 390 } 391 392 private void expand() { 393 removeMoreChip(); 394 setCursorVisible(true); 395 Editable text = getText(); 396 setSelection(text != null && text.length() > 0 ? text.length() : 0); 397 // If there are any temporary chips, try replacing them now that the user 398 // has expanded the field. 399 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0) { 400 new RecipientReplacementTask().execute(); 401 mTemporaryRecipients = null; 402 } 403 } 404 405 private CharSequence ellipsizeText(CharSequence text, TextPaint paint, float maxWidth) { 406 paint.setTextSize(mChipFontSize); 407 if (maxWidth <= 0 && Log.isLoggable(TAG, Log.DEBUG)) { 408 Log.d(TAG, "Max width is negative: " + maxWidth); 409 } 410 return TextUtils.ellipsize(text, paint, maxWidth, 411 TextUtils.TruncateAt.END); 412 } 413 414 private Bitmap createSelectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 415 // Ellipsize the text so that it takes AT MOST the entire width of the 416 // autocomplete text entry area. Make sure to leave space for padding 417 // on the sides. 418 int height = (int) mChipHeight; 419 int deleteWidth = height; 420 float[] widths = new float[1]; 421 paint.getTextWidths(" ", widths); 422 CharSequence ellipsizedText = ellipsizeText(createChipDisplayText(contact), paint, 423 calculateAvailableWidth(true) - deleteWidth - widths[0]); 424 425 // Make sure there is a minimum chip width so the user can ALWAYS 426 // tap a chip without difficulty. 427 int width = Math.max(deleteWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 428 ellipsizedText.length())) 429 + (mChipPadding * 2) + deleteWidth); 430 431 // Create the background of the chip. 432 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 433 Canvas canvas = new Canvas(tmpBitmap); 434 if (mChipBackgroundPressed != null) { 435 mChipBackgroundPressed.setBounds(0, 0, width, height); 436 mChipBackgroundPressed.draw(canvas); 437 paint.setColor(sSelectedTextColor); 438 // Vertically center the text in the chip. 439 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 440 getTextYOffset((String) ellipsizedText, paint, height), paint); 441 // Make the delete a square. 442 Rect backgroundPadding = new Rect(); 443 mChipBackgroundPressed.getPadding(backgroundPadding); 444 mChipDelete.setBounds(width - deleteWidth + backgroundPadding.left, 445 0 + backgroundPadding.top, 446 width - backgroundPadding.right, 447 height - backgroundPadding.bottom); 448 mChipDelete.draw(canvas); 449 } else { 450 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 451 } 452 return tmpBitmap; 453 } 454 455 456 private Bitmap createUnselectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 457 // Ellipsize the text so that it takes AT MOST the entire width of the 458 // autocomplete text entry area. Make sure to leave space for padding 459 // on the sides. 460 int height = (int) mChipHeight; 461 int iconWidth = height; 462 float[] widths = new float[1]; 463 paint.getTextWidths(" ", widths); 464 CharSequence ellipsizedText = ellipsizeText(createChipDisplayText(contact), paint, 465 calculateAvailableWidth(false) - iconWidth - widths[0]); 466 // Make sure there is a minimum chip width so the user can ALWAYS 467 // tap a chip without difficulty. 468 int width = Math.max(iconWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 469 ellipsizedText.length())) 470 + (mChipPadding * 2) + iconWidth); 471 472 // Create the background of the chip. 473 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 474 Canvas canvas = new Canvas(tmpBitmap); 475 Drawable background = getChipBackground(contact); 476 if (background != null) { 477 background.setBounds(0, 0, width, height); 478 background.draw(canvas); 479 480 // Don't draw photos for recipients that have been typed in. 481 if (contact.getContactId() != RecipientEntry.INVALID_CONTACT) { 482 byte[] photoBytes = contact.getPhotoBytes(); 483 // There may not be a photo yet if anything but the first contact address 484 // was selected. 485 if (photoBytes == null && contact.getPhotoThumbnailUri() != null) { 486 // TODO: cache this in the recipient entry? 487 ((BaseRecipientAdapter) getAdapter()).fetchPhoto(contact, contact 488 .getPhotoThumbnailUri()); 489 photoBytes = contact.getPhotoBytes(); 490 } 491 492 Bitmap photo; 493 if (photoBytes != null) { 494 photo = BitmapFactory.decodeByteArray(photoBytes, 0, photoBytes.length); 495 } else { 496 // TODO: can the scaled down default photo be cached? 497 photo = mDefaultContactPhoto; 498 } 499 // Draw the photo on the left side. 500 if (photo != null) { 501 RectF src = new RectF(0, 0, photo.getWidth(), photo.getHeight()); 502 Rect backgroundPadding = new Rect(); 503 mChipBackground.getPadding(backgroundPadding); 504 RectF dst = new RectF(width - iconWidth + backgroundPadding.left, 505 0 + backgroundPadding.top, 506 width - backgroundPadding.right, 507 height - backgroundPadding.bottom); 508 Matrix matrix = new Matrix(); 509 matrix.setRectToRect(src, dst, Matrix.ScaleToFit.FILL); 510 canvas.drawBitmap(photo, matrix, paint); 511 } 512 } else { 513 // Don't leave any space for the icon. It isn't being drawn. 514 iconWidth = 0; 515 } 516 paint.setColor(getContext().getResources().getColor(android.R.color.black)); 517 // Vertically center the text in the chip. 518 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 519 getTextYOffset((String)ellipsizedText, paint, height), paint); 520 } else { 521 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 522 } 523 return tmpBitmap; 524 } 525 526 /** 527 * Get the background drawable for a RecipientChip. 528 */ 529 // Visible for testing. 530 /*package*/ Drawable getChipBackground(RecipientEntry contact) { 531 return (mValidator != null && mValidator.isValid(contact.getDestination())) ? 532 mChipBackground : mInvalidChipBackground; 533 } 534 535 private float getTextYOffset(String text, TextPaint paint, int height) { 536 Rect bounds = new Rect(); 537 paint.getTextBounds(text, 0, text.length(), bounds); 538 int textHeight = bounds.bottom - bounds.top - (int)paint.descent(); 539 return height - ((height - textHeight) / 2); 540 } 541 542 private RecipientChip constructChipSpan(RecipientEntry contact, int offset, boolean pressed) 543 throws NullPointerException { 544 if (mChipBackground == null) { 545 throw new NullPointerException( 546 "Unable to render any chips as setChipDimensions was not called."); 547 } 548 Layout layout = getLayout(); 549 550 TextPaint paint = getPaint(); 551 float defaultSize = paint.getTextSize(); 552 int defaultColor = paint.getColor(); 553 554 Bitmap tmpBitmap; 555 if (pressed) { 556 tmpBitmap = createSelectedChip(contact, paint, layout); 557 558 } else { 559 tmpBitmap = createUnselectedChip(contact, paint, layout); 560 } 561 562 // Pass the full text, un-ellipsized, to the chip. 563 Drawable result = new BitmapDrawable(getResources(), tmpBitmap); 564 result.setBounds(0, 0, tmpBitmap.getWidth(), tmpBitmap.getHeight()); 565 RecipientChip recipientChip = new RecipientChip(result, contact, offset); 566 // Return text to the original size. 567 paint.setTextSize(defaultSize); 568 paint.setColor(defaultColor); 569 return recipientChip; 570 } 571 572 /** 573 * Calculate the bottom of the line the chip will be located on using: 574 * 1) which line the chip appears on 575 * 2) the height of a chip 576 * 3) padding built into the edit text view 577 */ 578 private int calculateOffsetFromBottom(int line) { 579 // Line offsets start at zero. 580 int actualLine = getLineCount() - (line + 1); 581 return -((actualLine * ((int) mChipHeight) + getPaddingBottom()) + getPaddingTop()) 582 + getDropDownVerticalOffset(); 583 } 584 585 /** 586 * Get the max amount of space a chip can take up. The formula takes into 587 * account the width of the EditTextView, any view padding, and padding 588 * that will be added to the chip. 589 */ 590 private float calculateAvailableWidth(boolean pressed) { 591 return getWidth() - getPaddingLeft() - getPaddingRight() - (mChipPadding * 2); 592 } 593 594 595 private void setChipDimensions(Context context, AttributeSet attrs) { 596 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.RecipientEditTextView, 0, 597 0); 598 Resources r = getContext().getResources(); 599 mChipBackground = a.getDrawable(R.styleable.RecipientEditTextView_chipBackground); 600 if (mChipBackground == null) { 601 mChipBackground = r.getDrawable(R.drawable.chip_background); 602 } 603 mChipBackgroundPressed = a 604 .getDrawable(R.styleable.RecipientEditTextView_chipBackgroundPressed); 605 if (mChipBackgroundPressed == null) { 606 mChipBackgroundPressed = r.getDrawable(R.drawable.chip_background_selected); 607 } 608 mChipDelete = a.getDrawable(R.styleable.RecipientEditTextView_chipDelete); 609 if (mChipDelete == null) { 610 mChipDelete = r.getDrawable(R.drawable.chip_delete); 611 } 612 mChipPadding = a.getDimensionPixelSize(R.styleable.RecipientEditTextView_chipPadding, -1); 613 if (mChipPadding == -1) { 614 mChipPadding = (int) r.getDimension(R.dimen.chip_padding); 615 } 616 mAlternatesLayout = a.getResourceId(R.styleable.RecipientEditTextView_chipAlternatesLayout, 617 -1); 618 if (mAlternatesLayout == -1) { 619 mAlternatesLayout = R.layout.chips_alternate_item; 620 } 621 622 mDefaultContactPhoto = BitmapFactory.decodeResource(r, R.drawable.ic_contact_picture); 623 624 mMoreItem = (TextView) LayoutInflater.from(getContext()).inflate(R.layout.more_item, null); 625 626 mChipHeight = a.getDimensionPixelSize(R.styleable.RecipientEditTextView_chipHeight, -1); 627 if (mChipHeight == -1) { 628 mChipHeight = r.getDimension(R.dimen.chip_height); 629 } 630 mChipFontSize = a.getDimensionPixelSize(R.styleable.RecipientEditTextView_chipFontSize, -1); 631 if (mChipFontSize == -1) { 632 mChipFontSize = r.getDimension(R.dimen.chip_text_size); 633 } 634 mInvalidChipBackground = a 635 .getDrawable(R.styleable.RecipientEditTextView_invalidChipBackground); 636 if (mInvalidChipBackground == null) { 637 mInvalidChipBackground = r.getDrawable(R.drawable.chip_background_invalid); 638 } 639 } 640 641 // Visible for testing. 642 /* package */ void setMoreItem(TextView moreItem) { 643 mMoreItem = moreItem; 644 } 645 646 647 // Visible for testing. 648 /* package */ void setChipBackground(Drawable chipBackground) { 649 mChipBackground = chipBackground; 650 } 651 652 // Visible for testing. 653 /* package */ void setChipHeight(int height) { 654 mChipHeight = height; 655 } 656 657 /** 658 * Set whether to shrink the recipients field such that at most 659 * one line of recipients chips are shown when the field loses 660 * focus. By default, the number of displayed recipients will be 661 * limited and a "more" chip will be shown when focus is lost. 662 * @param shrink 663 */ 664 public void setOnFocusListShrinkRecipients(boolean shrink) { 665 mShouldShrink = shrink; 666 } 667 668 @Override 669 public void onSizeChanged(int width, int height, int oldw, int oldh) { 670 super.onSizeChanged(width, height, oldw, oldh); 671 if (width != 0 && height != 0) { 672 if (mPendingChipsCount > 0) { 673 postHandlePendingChips(); 674 } else { 675 checkChipWidths(); 676 } 677 } 678 // Try to find the scroll view parent, if it exists. 679 if (mScrollView == null && !mTriedGettingScrollView) { 680 ViewParent parent = getParent(); 681 while (parent != null && !(parent instanceof ScrollView)) { 682 parent = parent.getParent(); 683 } 684 if (parent != null) { 685 mScrollView = (ScrollView) parent; 686 } 687 mTriedGettingScrollView = true; 688 } 689 } 690 691 private void postHandlePendingChips() { 692 mHandler.removeCallbacks(mHandlePendingChips); 693 mHandler.post(mHandlePendingChips); 694 } 695 696 private void checkChipWidths() { 697 // Check the widths of the associated chips. 698 RecipientChip[] chips = getSortedRecipients(); 699 if (chips != null) { 700 Rect bounds; 701 for (RecipientChip chip : chips) { 702 bounds = chip.getDrawable().getBounds(); 703 if (getWidth() > 0 && bounds.right - bounds.left > getWidth()) { 704 // Need to redraw that chip. 705 replaceChip(chip, chip.getEntry()); 706 } 707 } 708 } 709 } 710 711 // Visible for testing. 712 /*package*/ void handlePendingChips() { 713 if (getViewWidth() <= 0) { 714 // The widget has not been sized yet. 715 // This will be called as a result of onSizeChanged 716 // at a later point. 717 return; 718 } 719 if (mPendingChipsCount <= 0) { 720 return; 721 } 722 723 synchronized (mPendingChips) { 724 Editable editable = getText(); 725 // Tokenize! 726 if (mPendingChipsCount <= MAX_CHIPS_PARSED) { 727 for (int i = 0; i < mPendingChips.size(); i++) { 728 String current = mPendingChips.get(i); 729 int tokenStart = editable.toString().indexOf(current); 730 int tokenEnd = tokenStart + current.length(); 731 if (tokenStart >= 0) { 732 // When we have a valid token, include it with the token 733 // to the left. 734 if (tokenEnd < editable.length() - 2 735 && editable.charAt(tokenEnd) == COMMIT_CHAR_COMMA) { 736 tokenEnd++; 737 } 738 createReplacementChip(tokenStart, tokenEnd, editable); 739 } 740 mPendingChipsCount--; 741 } 742 sanitizeEnd(); 743 } else { 744 mNoChips = true; 745 } 746 747 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0 748 && mTemporaryRecipients.size() <= RecipientAlternatesAdapter.MAX_LOOKUPS) { 749 if (hasFocus() || mTemporaryRecipients.size() < CHIP_LIMIT) { 750 new RecipientReplacementTask().execute(); 751 mTemporaryRecipients = null; 752 } else { 753 // Create the "more" chip 754 mIndividualReplacements = new IndividualReplacementTask(); 755 mIndividualReplacements.execute(new ArrayList<RecipientChip>( 756 mTemporaryRecipients.subList(0, CHIP_LIMIT))); 757 758 createMoreChip(); 759 } 760 } else { 761 // There are too many recipients to look up, so just fall back 762 // to showing addresses for all of them. 763 mTemporaryRecipients = null; 764 createMoreChip(); 765 } 766 mPendingChipsCount = 0; 767 mPendingChips.clear(); 768 } 769 } 770 771 // Visible for testing. 772 /*package*/ int getViewWidth() { 773 return getWidth(); 774 } 775 776 /** 777 * Remove any characters after the last valid chip. 778 */ 779 // Visible for testing. 780 /*package*/ void sanitizeEnd() { 781 // Don't sanitize while we are waiting for pending chips to complete. 782 if (mPendingChipsCount > 0) { 783 return; 784 } 785 // Find the last chip; eliminate any commit characters after it. 786 RecipientChip[] chips = getSortedRecipients(); 787 if (chips != null && chips.length > 0) { 788 int end; 789 ImageSpan lastSpan; 790 mMoreChip = getMoreChip(); 791 if (mMoreChip != null) { 792 lastSpan = mMoreChip; 793 } else { 794 lastSpan = getLastChip(); 795 } 796 end = getSpannable().getSpanEnd(lastSpan); 797 Editable editable = getText(); 798 int length = editable.length(); 799 if (length > end) { 800 // See what characters occur after that and eliminate them. 801 if (Log.isLoggable(TAG, Log.DEBUG)) { 802 Log.d(TAG, "There were extra characters after the last tokenizable entry." 803 + editable); 804 } 805 editable.delete(end + 1, length); 806 } 807 } 808 } 809 810 /** 811 * Create a chip that represents just the email address of a recipient. At some later 812 * point, this chip will be attached to a real contact entry, if one exists. 813 */ 814 private void createReplacementChip(int tokenStart, int tokenEnd, Editable editable) { 815 if (alreadyHasChip(tokenStart, tokenEnd)) { 816 // There is already a chip present at this location. 817 // Don't recreate it. 818 return; 819 } 820 String token = editable.toString().substring(tokenStart, tokenEnd); 821 int commitCharIndex = token.trim().lastIndexOf(COMMIT_CHAR_COMMA); 822 if (commitCharIndex == token.length() - 1) { 823 token = token.substring(0, token.length() - 1); 824 } 825 RecipientEntry entry = createTokenizedEntry(token); 826 if (entry != null) { 827 String destText = createAddressText(entry); 828 // Always leave a blank space at the end of a chip. 829 int textLength = destText.length() - 1; 830 SpannableString chipText = new SpannableString(destText); 831 int end = getSelectionEnd(); 832 int start = mTokenizer != null ? mTokenizer.findTokenStart(getText(), end) : 0; 833 RecipientChip chip = null; 834 try { 835 if (!mNoChips) { 836 chip = constructChipSpan(entry, start, false); 837 chipText.setSpan(chip, 0, textLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 838 } 839 } catch (NullPointerException e) { 840 Log.e(TAG, e.getMessage(), e); 841 } 842 editable.replace(tokenStart, tokenEnd, chipText); 843 // Add this chip to the list of entries "to replace" 844 if (chip != null) { 845 if (mTemporaryRecipients == null) { 846 mTemporaryRecipients = new ArrayList<RecipientChip>(); 847 } 848 chip.setOriginalText(chipText.toString()); 849 mTemporaryRecipients.add(chip); 850 } 851 } 852 } 853 854 private RecipientEntry createTokenizedEntry(String token) { 855 if (TextUtils.isEmpty(token)) { 856 return null; 857 } 858 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(token); 859 String display = null; 860 if (isValid(token) && tokens != null && tokens.length > 0) { 861 // If we can get a name from tokenizing, then generate an entry from 862 // this. 863 display = tokens[0].getName(); 864 if (!TextUtils.isEmpty(display)) { 865 return RecipientEntry.constructGeneratedEntry(display, token); 866 } else { 867 display = tokens[0].getAddress(); 868 if (!TextUtils.isEmpty(display)) { 869 return RecipientEntry.constructFakeEntry(display); 870 } 871 } 872 } 873 // Unable to validate the token or to create a valid token from it. 874 // Just create a chip the user can edit. 875 String validatedToken = null; 876 if (mValidator != null && !mValidator.isValid(token)) { 877 // Try fixing up the entry using the validator. 878 validatedToken = mValidator.fixText(token).toString(); 879 if (!TextUtils.isEmpty(validatedToken)) { 880 if (validatedToken.contains(token)) { 881 // protect against the case of a validator with a null domain, 882 // which doesn't add a domain to the token 883 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(validatedToken); 884 if (tokenized.length > 0) { 885 validatedToken = tokenized[0].getAddress(); 886 } 887 } else { 888 // We ran into a case where the token was invalid and removed 889 // by the validator. In this case, just use the original token 890 // and let the user sort out the error chip. 891 validatedToken = null; 892 } 893 } 894 } 895 // Otherwise, fallback to just creating an editable email address chip. 896 return RecipientEntry 897 .constructFakeEntry(!TextUtils.isEmpty(validatedToken) ? validatedToken : token); 898 } 899 900 private boolean isValid(String text) { 901 return mValidator == null ? true : mValidator.isValid(text); 902 } 903 904 private String tokenizeAddress(String destination) { 905 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(destination); 906 if (tokens != null && tokens.length > 0) { 907 return tokens[0].getAddress(); 908 } 909 return destination; 910 } 911 912 @Override 913 public void setTokenizer(Tokenizer tokenizer) { 914 mTokenizer = tokenizer; 915 super.setTokenizer(mTokenizer); 916 } 917 918 @Override 919 public void setValidator(Validator validator) { 920 mValidator = validator; 921 super.setValidator(validator); 922 } 923 924 /** 925 * We cannot use the default mechanism for replaceText. Instead, 926 * we override onItemClickListener so we can get all the associated 927 * contact information including display text, address, and id. 928 */ 929 @Override 930 protected void replaceText(CharSequence text) { 931 return; 932 } 933 934 /** 935 * Dismiss any selected chips when the back key is pressed. 936 */ 937 @Override 938 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 939 if (keyCode == KeyEvent.KEYCODE_BACK) { 940 clearSelectedChip(); 941 } 942 return super.onKeyPreIme(keyCode, event); 943 } 944 945 /** 946 * Monitor key presses in this view to see if the user types 947 * any commit keys, which consist of ENTER, TAB, or DPAD_CENTER. 948 * If the user has entered text that has contact matches and types 949 * a commit key, create a chip from the topmost matching contact. 950 * If the user has entered text that has no contact matches and types 951 * a commit key, then create a chip from the text they have entered. 952 */ 953 @Override 954 public boolean onKeyUp(int keyCode, KeyEvent event) { 955 switch (keyCode) { 956 case KeyEvent.KEYCODE_ENTER: 957 case KeyEvent.KEYCODE_DPAD_CENTER: 958 if (event.hasNoModifiers()) { 959 if (commitDefault()) { 960 return true; 961 } 962 if (mSelectedChip != null) { 963 clearSelectedChip(); 964 return true; 965 } else if (focusNext()) { 966 return true; 967 } 968 } 969 break; 970 case KeyEvent.KEYCODE_TAB: 971 if (event.hasNoModifiers()) { 972 if (mSelectedChip != null) { 973 clearSelectedChip(); 974 } else { 975 commitDefault(); 976 } 977 if (focusNext()) { 978 return true; 979 } 980 } 981 } 982 return super.onKeyUp(keyCode, event); 983 } 984 985 private boolean focusNext() { 986 View next = focusSearch(View.FOCUS_DOWN); 987 if (next != null) { 988 next.requestFocus(); 989 return true; 990 } 991 return false; 992 } 993 994 /** 995 * Create a chip from the default selection. If the popup is showing, the 996 * default is the first item in the popup suggestions list. Otherwise, it is 997 * whatever the user had typed in. End represents where the the tokenizer 998 * should search for a token to turn into a chip. 999 * @return If a chip was created from a real contact. 1000 */ 1001 private boolean commitDefault() { 1002 Editable editable = getText(); 1003 int end = getSelectionEnd(); 1004 int start = mTokenizer.findTokenStart(editable, end); 1005 1006 if (shouldCreateChip(start, end)) { 1007 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 1008 // In the middle of chip; treat this as an edit 1009 // and commit the whole token. 1010 if (whatEnd != getSelectionEnd()) { 1011 handleEdit(start, whatEnd); 1012 return true; 1013 } 1014 return commitChip(start, end , editable); 1015 } 1016 return false; 1017 } 1018 1019 private void commitByCharacter() { 1020 Editable editable = getText(); 1021 int end = getSelectionEnd(); 1022 int start = mTokenizer.findTokenStart(editable, end); 1023 if (shouldCreateChip(start, end)) { 1024 commitChip(start, end, editable); 1025 } 1026 setSelection(getText().length()); 1027 } 1028 1029 private boolean commitChip(int start, int end, Editable editable) { 1030 ListAdapter adapter = getAdapter(); 1031 if (adapter != null && adapter.getCount() > 0 && enoughToFilter() 1032 && end == getSelectionEnd()) { 1033 // choose the first entry. 1034 submitItemAtPosition(0); 1035 dismissDropDown(); 1036 return true; 1037 } else { 1038 int tokenEnd = mTokenizer.findTokenEnd(editable, start); 1039 if (editable.length() > tokenEnd + 1) { 1040 char charAt = editable.charAt(tokenEnd + 1); 1041 if (charAt == COMMIT_CHAR_COMMA || charAt == COMMIT_CHAR_SEMICOLON) { 1042 tokenEnd++; 1043 } 1044 } 1045 String text = editable.toString().substring(start, tokenEnd).trim(); 1046 clearComposingText(); 1047 if (text != null && text.length() > 0 && !text.equals(" ")) { 1048 RecipientEntry entry = createTokenizedEntry(text); 1049 if (entry != null) { 1050 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1051 CharSequence chipText = createChip(entry, false); 1052 if (chipText != null && start > -1 && end > -1) { 1053 editable.replace(start, end, chipText); 1054 } 1055 } 1056 // Only dismiss the dropdown if it is related to the text we 1057 // just committed. 1058 // For paste, it may not be as there are possibly multiple 1059 // tokens being added. 1060 if (end == getSelectionEnd()) { 1061 dismissDropDown(); 1062 } 1063 sanitizeBetween(); 1064 return true; 1065 } 1066 } 1067 return false; 1068 } 1069 1070 // Visible for testing. 1071 /* package */ void sanitizeBetween() { 1072 // Don't sanitize while we are waiting for content to chipify. 1073 if (mPendingChipsCount > 0) { 1074 return; 1075 } 1076 // Find the last chip. 1077 RecipientChip[] recips = getSortedRecipients(); 1078 if (recips != null && recips.length > 0) { 1079 RecipientChip last = recips[recips.length - 1]; 1080 RecipientChip beforeLast = null; 1081 if (recips.length > 1) { 1082 beforeLast = recips[recips.length - 2]; 1083 } 1084 int startLooking = 0; 1085 int end = getSpannable().getSpanStart(last); 1086 if (beforeLast != null) { 1087 startLooking = getSpannable().getSpanEnd(beforeLast); 1088 Editable text = getText(); 1089 if (startLooking == -1 || startLooking > text.length() - 1) { 1090 // There is nothing after this chip. 1091 return; 1092 } 1093 if (text.charAt(startLooking) == ' ') { 1094 startLooking++; 1095 } 1096 } 1097 if (startLooking >= 0 && end >= 0 && startLooking < end) { 1098 getText().delete(startLooking, end); 1099 } 1100 } 1101 } 1102 1103 private boolean shouldCreateChip(int start, int end) { 1104 return !mNoChips && hasFocus() && enoughToFilter() && !alreadyHasChip(start, end); 1105 } 1106 1107 private boolean alreadyHasChip(int start, int end) { 1108 if (mNoChips) { 1109 return true; 1110 } 1111 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 1112 if ((chips == null || chips.length == 0)) { 1113 return false; 1114 } 1115 return true; 1116 } 1117 1118 private void handleEdit(int start, int end) { 1119 if (start == -1 || end == -1) { 1120 // This chip no longer exists in the field. 1121 dismissDropDown(); 1122 return; 1123 } 1124 // This is in the middle of a chip, so select out the whole chip 1125 // and commit it. 1126 Editable editable = getText(); 1127 setSelection(end); 1128 String text = getText().toString().substring(start, end); 1129 if (!TextUtils.isEmpty(text)) { 1130 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 1131 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1132 CharSequence chipText = createChip(entry, false); 1133 int selEnd = getSelectionEnd(); 1134 if (chipText != null && start > -1 && selEnd > -1) { 1135 editable.replace(start, selEnd, chipText); 1136 } 1137 } 1138 dismissDropDown(); 1139 } 1140 1141 /** 1142 * If there is a selected chip, delegate the key events 1143 * to the selected chip. 1144 */ 1145 @Override 1146 public boolean onKeyDown(int keyCode, KeyEvent event) { 1147 if (mSelectedChip != null && keyCode == KeyEvent.KEYCODE_DEL) { 1148 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1149 mAlternatesPopup.dismiss(); 1150 } 1151 removeChip(mSelectedChip); 1152 } 1153 1154 if (keyCode == KeyEvent.KEYCODE_ENTER && event.hasNoModifiers()) { 1155 return true; 1156 } 1157 1158 return super.onKeyDown(keyCode, event); 1159 } 1160 1161 // Visible for testing. 1162 /* package */ Spannable getSpannable() { 1163 return getText(); 1164 } 1165 1166 private int getChipStart(RecipientChip chip) { 1167 return getSpannable().getSpanStart(chip); 1168 } 1169 1170 private int getChipEnd(RecipientChip chip) { 1171 return getSpannable().getSpanEnd(chip); 1172 } 1173 1174 /** 1175 * Instead of filtering on the entire contents of the edit box, 1176 * this subclass method filters on the range from 1177 * {@link Tokenizer#findTokenStart} to {@link #getSelectionEnd} 1178 * if the length of that range meets or exceeds {@link #getThreshold} 1179 * and makes sure that the range is not already a Chip. 1180 */ 1181 @Override 1182 protected void performFiltering(CharSequence text, int keyCode) { 1183 if (enoughToFilter() && !isCompletedToken(text)) { 1184 int end = getSelectionEnd(); 1185 int start = mTokenizer.findTokenStart(text, end); 1186 // If this is a RecipientChip, don't filter 1187 // on its contents. 1188 Spannable span = getSpannable(); 1189 RecipientChip[] chips = span.getSpans(start, end, RecipientChip.class); 1190 if (chips != null && chips.length > 0) { 1191 return; 1192 } 1193 } 1194 super.performFiltering(text, keyCode); 1195 } 1196 1197 // Visible for testing. 1198 /*package*/ boolean isCompletedToken(CharSequence text) { 1199 if (TextUtils.isEmpty(text)) { 1200 return false; 1201 } 1202 // Check to see if this is a completed token before filtering. 1203 int end = text.length(); 1204 int start = mTokenizer.findTokenStart(text, end); 1205 String token = text.toString().substring(start, end).trim(); 1206 if (!TextUtils.isEmpty(token)) { 1207 char atEnd = token.charAt(token.length() - 1); 1208 return atEnd == COMMIT_CHAR_COMMA || atEnd == COMMIT_CHAR_SEMICOLON; 1209 } 1210 return false; 1211 } 1212 1213 private void clearSelectedChip() { 1214 if (mSelectedChip != null) { 1215 unselectChip(mSelectedChip); 1216 mSelectedChip = null; 1217 } 1218 setCursorVisible(true); 1219 } 1220 1221 /** 1222 * Monitor touch events in the RecipientEditTextView. 1223 * If the view does not have focus, any tap on the view 1224 * will just focus the view. If the view has focus, determine 1225 * if the touch target is a recipient chip. If it is and the chip 1226 * is not selected, select it and clear any other selected chips. 1227 * If it isn't, then select that chip. 1228 */ 1229 @Override 1230 public boolean onTouchEvent(MotionEvent event) { 1231 if (!isFocused()) { 1232 // Ignore any chip taps until this view is focused. 1233 return super.onTouchEvent(event); 1234 } 1235 boolean handled = super.onTouchEvent(event); 1236 int action = event.getAction(); 1237 boolean chipWasSelected = false; 1238 if (mSelectedChip == null) { 1239 mGestureDetector.onTouchEvent(event); 1240 } 1241 if (mCopyAddress == null && action == MotionEvent.ACTION_UP) { 1242 float x = event.getX(); 1243 float y = event.getY(); 1244 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 1245 RecipientChip currentChip = findChip(offset); 1246 if (currentChip != null) { 1247 if (action == MotionEvent.ACTION_UP) { 1248 if (mSelectedChip != null && mSelectedChip != currentChip) { 1249 clearSelectedChip(); 1250 mSelectedChip = selectChip(currentChip); 1251 } else if (mSelectedChip == null) { 1252 setSelection(getText().length()); 1253 commitDefault(); 1254 mSelectedChip = selectChip(currentChip); 1255 } else { 1256 onClick(mSelectedChip, offset, x, y); 1257 } 1258 } 1259 chipWasSelected = true; 1260 handled = true; 1261 } else if (mSelectedChip != null 1262 && mSelectedChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1263 chipWasSelected = true; 1264 } 1265 } 1266 if (action == MotionEvent.ACTION_UP && !chipWasSelected) { 1267 clearSelectedChip(); 1268 } 1269 return handled; 1270 } 1271 1272 private void scrollLineIntoView(int line) { 1273 if (mScrollView != null) { 1274 mScrollView.scrollBy(0, calculateOffsetFromBottom(line)); 1275 } 1276 } 1277 1278 private void showAlternates(RecipientChip currentChip, ListPopupWindow alternatesPopup, 1279 int width, Context context) { 1280 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1281 int bottom = calculateOffsetFromBottom(line); 1282 // Align the alternates popup with the left side of the View, 1283 // regardless of the position of the chip tapped. 1284 alternatesPopup.setWidth(width); 1285 setEnabled(false); 1286 alternatesPopup.setAnchorView(this); 1287 alternatesPopup.setVerticalOffset(bottom); 1288 alternatesPopup.setAdapter(createAlternatesAdapter(currentChip)); 1289 alternatesPopup.setOnItemClickListener(mAlternatesListener); 1290 // Clear the checked item. 1291 mCheckedItem = -1; 1292 alternatesPopup.show(); 1293 ListView listView = alternatesPopup.getListView(); 1294 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1295 // Checked item would be -1 if the adapter has not 1296 // loaded the view that should be checked yet. The 1297 // variable will be set correctly when onCheckedItemChanged 1298 // is called in a separate thread. 1299 if (mCheckedItem != -1) { 1300 listView.setItemChecked(mCheckedItem, true); 1301 mCheckedItem = -1; 1302 } 1303 } 1304 1305 // Dismiss listener for alterns and single address popup. 1306 @Override 1307 public void onDismiss() { 1308 setEnabled(true); 1309 } 1310 1311 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 1312 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 1313 mAlternatesLayout, this); 1314 } 1315 1316 private ListAdapter createSingleAddressAdapter(RecipientChip currentChip) { 1317 return new SingleRecipientArrayAdapter(getContext(), mAlternatesLayout, currentChip 1318 .getEntry()); 1319 } 1320 1321 @Override 1322 public void onCheckedItemChanged(int position) { 1323 ListView listView = mAlternatesPopup.getListView(); 1324 if (listView != null && listView.getCheckedItemCount() == 0) { 1325 listView.setItemChecked(position, true); 1326 } 1327 mCheckedItem = position; 1328 } 1329 1330 // TODO: This algorithm will need a lot of tweaking after more people have used 1331 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 1332 // what comes before the finger. 1333 private int putOffsetInRange(int o) { 1334 int offset = o; 1335 Editable text = getText(); 1336 int length = text.length(); 1337 // Remove whitespace from end to find "real end" 1338 int realLength = length; 1339 for (int i = length - 1; i >= 0; i--) { 1340 if (text.charAt(i) == ' ') { 1341 realLength--; 1342 } else { 1343 break; 1344 } 1345 } 1346 1347 // If the offset is beyond or at the end of the text, 1348 // leave it alone. 1349 if (offset >= realLength) { 1350 return offset; 1351 } 1352 Editable editable = getText(); 1353 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 1354 // Keep walking backward! 1355 offset--; 1356 } 1357 return offset; 1358 } 1359 1360 private int findText(Editable text, int offset) { 1361 if (text.charAt(offset) != ' ') { 1362 return offset; 1363 } 1364 return -1; 1365 } 1366 1367 private RecipientChip findChip(int offset) { 1368 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1369 // Find the chip that contains this offset. 1370 for (int i = 0; i < chips.length; i++) { 1371 RecipientChip chip = chips[i]; 1372 int start = getChipStart(chip); 1373 int end = getChipEnd(chip); 1374 if (offset >= start && offset <= end) { 1375 return chip; 1376 } 1377 } 1378 return null; 1379 } 1380 1381 // Visible for testing. 1382 // Use this method to generate text to add to the list of addresses. 1383 /* package */String createAddressText(RecipientEntry entry) { 1384 String display = entry.getDisplayName(); 1385 String address = entry.getDestination(); 1386 if (TextUtils.isEmpty(display) || TextUtils.equals(display, address)) { 1387 display = null; 1388 } 1389 if (address != null) { 1390 // Tokenize out the address in case the address already 1391 // contained the username as well. 1392 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(address); 1393 if (tokenized != null && tokenized.length > 0) { 1394 address = tokenized[0].getAddress(); 1395 } 1396 } 1397 Rfc822Token token = new Rfc822Token(display, address, null); 1398 String trimmedDisplayText = token.toString().trim(); 1399 int index = trimmedDisplayText.indexOf(","); 1400 return mTokenizer != null && !TextUtils.isEmpty(trimmedDisplayText) 1401 && index < trimmedDisplayText.length() - 1 ? (String) mTokenizer 1402 .terminateToken(trimmedDisplayText) : trimmedDisplayText; 1403 } 1404 1405 // Visible for testing. 1406 // Use this method to generate text to display in a chip. 1407 /*package*/ String createChipDisplayText(RecipientEntry entry) { 1408 String display = entry.getDisplayName(); 1409 String address = entry.getDestination(); 1410 if (TextUtils.isEmpty(display) || TextUtils.equals(display, address)) { 1411 display = null; 1412 } 1413 if (address != null) { 1414 // Tokenize out the address in case the address already 1415 // contained the username as well. 1416 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(address); 1417 if (tokenized != null && tokenized.length > 0) { 1418 address = tokenized[0].getAddress(); 1419 } 1420 } 1421 if (!TextUtils.isEmpty(display)) { 1422 return display; 1423 } else if (!TextUtils.isEmpty(address)){ 1424 return address; 1425 } else { 1426 return new Rfc822Token(display, address, null).toString(); 1427 } 1428 } 1429 1430 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 1431 String displayText = createAddressText(entry); 1432 if (TextUtils.isEmpty(displayText)) { 1433 return null; 1434 } 1435 SpannableString chipText = null; 1436 // Always leave a blank space at the end of a chip. 1437 int end = getSelectionEnd(); 1438 int start = mTokenizer.findTokenStart(getText(), end); 1439 int textLength = displayText.length()-1; 1440 chipText = new SpannableString(displayText); 1441 if (!mNoChips) { 1442 try { 1443 RecipientChip chip = constructChipSpan(entry, start, pressed); 1444 chipText.setSpan(chip, 0, textLength, 1445 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1446 chip.setOriginalText(chipText.toString()); 1447 } catch (NullPointerException e) { 1448 Log.e(TAG, e.getMessage(), e); 1449 return null; 1450 } 1451 } 1452 return chipText; 1453 } 1454 1455 /** 1456 * When an item in the suggestions list has been clicked, create a chip from the 1457 * contact information of the selected item. 1458 */ 1459 @Override 1460 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1461 submitItemAtPosition(position); 1462 } 1463 1464 private void submitItemAtPosition(int position) { 1465 RecipientEntry entry = createValidatedEntry( 1466 (RecipientEntry)getAdapter().getItem(position)); 1467 if (entry == null) { 1468 return; 1469 } 1470 clearComposingText(); 1471 1472 int end = getSelectionEnd(); 1473 int start = mTokenizer.findTokenStart(getText(), end); 1474 1475 Editable editable = getText(); 1476 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1477 CharSequence chip = createChip(entry, false); 1478 if (chip != null && start >= 0 && end >= 0) { 1479 editable.replace(start, end, chip); 1480 } 1481 sanitizeBetween(); 1482 } 1483 1484 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1485 if (item == null) { 1486 return null; 1487 } 1488 final RecipientEntry entry; 1489 // If the display name and the address are the same, or if this is a 1490 // valid contact, but the destination is invalid, then make this a fake 1491 // recipient that is editable. 1492 String destination = item.getDestination(); 1493 if (RecipientEntry.isCreatedRecipient(item.getContactId()) 1494 && (TextUtils.isEmpty(item.getDisplayName()) 1495 || TextUtils.equals(item.getDisplayName(), destination) 1496 || (mValidator != null && !mValidator.isValid(destination)))) { 1497 entry = RecipientEntry.constructFakeEntry(destination); 1498 } else { 1499 entry = item; 1500 } 1501 return entry; 1502 } 1503 1504 /** Returns a collection of contact Id for each chip inside this View. */ 1505 /* package */ Collection<Long> getContactIds() { 1506 final Set<Long> result = new HashSet<Long>(); 1507 RecipientChip[] chips = getSortedRecipients(); 1508 if (chips != null) { 1509 for (RecipientChip chip : chips) { 1510 result.add(chip.getContactId()); 1511 } 1512 } 1513 return result; 1514 } 1515 1516 1517 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1518 /* package */ Collection<Long> getDataIds() { 1519 final Set<Long> result = new HashSet<Long>(); 1520 RecipientChip [] chips = getSortedRecipients(); 1521 if (chips != null) { 1522 for (RecipientChip chip : chips) { 1523 result.add(chip.getDataId()); 1524 } 1525 } 1526 return result; 1527 } 1528 1529 // Visible for testing. 1530 /* package */RecipientChip[] getSortedRecipients() { 1531 RecipientChip[] recips = getSpannable() 1532 .getSpans(0, getText().length(), RecipientChip.class); 1533 ArrayList<RecipientChip> recipientsList = new ArrayList<RecipientChip>(Arrays 1534 .asList(recips)); 1535 final Spannable spannable = getSpannable(); 1536 Collections.sort(recipientsList, new Comparator<RecipientChip>() { 1537 1538 @Override 1539 public int compare(RecipientChip first, RecipientChip second) { 1540 int firstStart = spannable.getSpanStart(first); 1541 int secondStart = spannable.getSpanStart(second); 1542 if (firstStart < secondStart) { 1543 return -1; 1544 } else if (firstStart > secondStart) { 1545 return 1; 1546 } else { 1547 return 0; 1548 } 1549 } 1550 }); 1551 return recipientsList.toArray(new RecipientChip[recipientsList.size()]); 1552 } 1553 1554 @Override 1555 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1556 return false; 1557 } 1558 1559 @Override 1560 public void onDestroyActionMode(ActionMode mode) { 1561 } 1562 1563 @Override 1564 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1565 return false; 1566 } 1567 1568 /** 1569 * No chips are selectable. 1570 */ 1571 @Override 1572 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1573 return false; 1574 } 1575 1576 // Visible for testing. 1577 /* package */ImageSpan getMoreChip() { 1578 MoreImageSpan[] moreSpans = getSpannable().getSpans(0, getText().length(), 1579 MoreImageSpan.class); 1580 return moreSpans != null && moreSpans.length > 0 ? moreSpans[0] : null; 1581 } 1582 1583 private MoreImageSpan createMoreSpan(int count) { 1584 String moreText = String.format(mMoreItem.getText().toString(), count); 1585 TextPaint morePaint = new TextPaint(getPaint()); 1586 morePaint.setTextSize(mMoreItem.getTextSize()); 1587 morePaint.setColor(mMoreItem.getCurrentTextColor()); 1588 int width = (int)morePaint.measureText(moreText) + mMoreItem.getPaddingLeft() 1589 + mMoreItem.getPaddingRight(); 1590 int height = getLineHeight(); 1591 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1592 Canvas canvas = new Canvas(drawable); 1593 int adjustedHeight = height; 1594 Layout layout = getLayout(); 1595 if (layout != null) { 1596 adjustedHeight -= layout.getLineDescent(0); 1597 } 1598 canvas.drawText(moreText, 0, moreText.length(), 0, adjustedHeight, morePaint); 1599 1600 Drawable result = new BitmapDrawable(getResources(), drawable); 1601 result.setBounds(0, 0, width, height); 1602 return new MoreImageSpan(result); 1603 } 1604 1605 // Visible for testing. 1606 /*package*/ void createMoreChipPlainText() { 1607 // Take the first <= CHIP_LIMIT addresses and get to the end of the second one. 1608 Editable text = getText(); 1609 int start = 0; 1610 int end = start; 1611 for (int i = 0; i < CHIP_LIMIT; i++) { 1612 end = movePastTerminators(mTokenizer.findTokenEnd(text, start)); 1613 start = end; // move to the next token and get its end. 1614 } 1615 // Now, count total addresses. 1616 start = 0; 1617 int tokenCount = countTokens(text); 1618 MoreImageSpan moreSpan = createMoreSpan(tokenCount - CHIP_LIMIT); 1619 SpannableString chipText = new SpannableString(text.subSequence(end, text.length())); 1620 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1621 text.replace(end, text.length(), chipText); 1622 mMoreChip = moreSpan; 1623 } 1624 1625 // Visible for testing. 1626 /* package */int countTokens(Editable text) { 1627 int tokenCount = 0; 1628 int start = 0; 1629 while (start < text.length()) { 1630 start = movePastTerminators(mTokenizer.findTokenEnd(text, start)); 1631 tokenCount++; 1632 if (start >= text.length()) { 1633 break; 1634 } 1635 } 1636 return tokenCount; 1637 } 1638 1639 /** 1640 * Create the more chip. The more chip is text that replaces any chips that 1641 * do not fit in the pre-defined available space when the 1642 * RecipientEditTextView loses focus. 1643 */ 1644 // Visible for testing. 1645 /* package */ void createMoreChip() { 1646 if (mNoChips) { 1647 createMoreChipPlainText(); 1648 return; 1649 } 1650 1651 if (!mShouldShrink) { 1652 return; 1653 } 1654 1655 ImageSpan[] tempMore = getSpannable().getSpans(0, getText().length(), MoreImageSpan.class); 1656 if (tempMore.length > 0) { 1657 getSpannable().removeSpan(tempMore[0]); 1658 } 1659 RecipientChip[] recipients = getSortedRecipients(); 1660 1661 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1662 mMoreChip = null; 1663 return; 1664 } 1665 Spannable spannable = getSpannable(); 1666 int numRecipients = recipients.length; 1667 int overage = numRecipients - CHIP_LIMIT; 1668 MoreImageSpan moreSpan = createMoreSpan(overage); 1669 mRemovedSpans = new ArrayList<RecipientChip>(); 1670 int totalReplaceStart = 0; 1671 int totalReplaceEnd = 0; 1672 Editable text = getText(); 1673 for (int i = numRecipients - overage; i < recipients.length; i++) { 1674 mRemovedSpans.add(recipients[i]); 1675 if (i == numRecipients - overage) { 1676 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1677 } 1678 if (i == recipients.length - 1) { 1679 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1680 } 1681 if (mTemporaryRecipients == null || !mTemporaryRecipients.contains(recipients[i])) { 1682 int spanStart = spannable.getSpanStart(recipients[i]); 1683 int spanEnd = spannable.getSpanEnd(recipients[i]); 1684 recipients[i].setOriginalText(text.toString().substring(spanStart, spanEnd)); 1685 } 1686 spannable.removeSpan(recipients[i]); 1687 } 1688 if (totalReplaceEnd < text.length()) { 1689 totalReplaceEnd = text.length(); 1690 } 1691 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1692 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1693 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1694 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1695 text.replace(start, end, chipText); 1696 mMoreChip = moreSpan; 1697 } 1698 1699 /** 1700 * Replace the more chip, if it exists, with all of the recipient chips it had 1701 * replaced when the RecipientEditTextView gains focus. 1702 */ 1703 // Visible for testing. 1704 /*package*/ void removeMoreChip() { 1705 if (mMoreChip != null) { 1706 Spannable span = getSpannable(); 1707 span.removeSpan(mMoreChip); 1708 mMoreChip = null; 1709 // Re-add the spans that were removed. 1710 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1711 // Recreate each removed span. 1712 RecipientChip[] recipients = getSortedRecipients(); 1713 // Start the search for tokens after the last currently visible 1714 // chip. 1715 if (recipients == null || recipients.length == 0) { 1716 return; 1717 } 1718 int end = span.getSpanEnd(recipients[recipients.length - 1]); 1719 Editable editable = getText(); 1720 for (RecipientChip chip : mRemovedSpans) { 1721 int chipStart; 1722 int chipEnd; 1723 String token; 1724 // Need to find the location of the chip, again. 1725 token = (String) chip.getOriginalText(); 1726 // As we find the matching recipient for the remove spans, 1727 // reduce the size of the string we need to search. 1728 // That way, if there are duplicates, we always find the correct 1729 // recipient. 1730 chipStart = editable.toString().indexOf(token, end); 1731 end = chipEnd = Math.min(editable.length(), chipStart + token.length()); 1732 // Only set the span if we found a matching token. 1733 if (chipStart != -1) { 1734 editable.setSpan(chip, chipStart, chipEnd, 1735 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1736 } 1737 } 1738 mRemovedSpans.clear(); 1739 } 1740 } 1741 } 1742 1743 /** 1744 * Show specified chip as selected. If the RecipientChip is just an email address, 1745 * selecting the chip will take the contents of the chip and place it at 1746 * the end of the RecipientEditTextView for inline editing. If the 1747 * RecipientChip is a complete contact, then selecting the chip 1748 * will change the background color of the chip, show the delete icon, 1749 * and a popup window with the address in use highlighted and any other 1750 * alternate addresses for the contact. 1751 * @param currentChip Chip to select. 1752 * @return A RecipientChip in the selected state or null if the chip 1753 * just contained an email address. 1754 */ 1755 private RecipientChip selectChip(RecipientChip currentChip) { 1756 if (currentChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1757 CharSequence text = currentChip.getValue(); 1758 Editable editable = getText(); 1759 removeChip(currentChip); 1760 editable.append(text); 1761 setCursorVisible(true); 1762 setSelection(editable.length()); 1763 return new RecipientChip(null, RecipientEntry.constructFakeEntry((String) text), -1); 1764 } else if (currentChip.getContactId() == RecipientEntry.GENERATED_CONTACT) { 1765 int start = getChipStart(currentChip); 1766 int end = getChipEnd(currentChip); 1767 getSpannable().removeSpan(currentChip); 1768 RecipientChip newChip; 1769 try { 1770 if (mNoChips) { 1771 return null; 1772 } 1773 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1774 } catch (NullPointerException e) { 1775 Log.e(TAG, e.getMessage(), e); 1776 return null; 1777 } 1778 Editable editable = getText(); 1779 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1780 if (start == -1 || end == -1) { 1781 Log.d(TAG, "The chip being selected no longer exists but should."); 1782 } else { 1783 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1784 } 1785 newChip.setSelected(true); 1786 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1787 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1788 } 1789 showAddress(newChip, mAddressPopup, getWidth(), getContext()); 1790 setCursorVisible(false); 1791 return newChip; 1792 } else { 1793 int start = getChipStart(currentChip); 1794 int end = getChipEnd(currentChip); 1795 getSpannable().removeSpan(currentChip); 1796 RecipientChip newChip; 1797 try { 1798 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1799 } catch (NullPointerException e) { 1800 Log.e(TAG, e.getMessage(), e); 1801 return null; 1802 } 1803 Editable editable = getText(); 1804 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1805 if (start == -1 || end == -1) { 1806 Log.d(TAG, "The chip being selected no longer exists but should."); 1807 } else { 1808 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1809 } 1810 newChip.setSelected(true); 1811 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1812 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1813 } 1814 showAlternates(newChip, mAlternatesPopup, getWidth(), getContext()); 1815 setCursorVisible(false); 1816 return newChip; 1817 } 1818 } 1819 1820 1821 private void showAddress(final RecipientChip currentChip, final ListPopupWindow popup, 1822 int width, Context context) { 1823 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1824 int bottom = calculateOffsetFromBottom(line); 1825 // Align the alternates popup with the left side of the View, 1826 // regardless of the position of the chip tapped. 1827 setEnabled(false); 1828 popup.setWidth(width); 1829 popup.setAnchorView(this); 1830 popup.setVerticalOffset(bottom); 1831 popup.setAdapter(createSingleAddressAdapter(currentChip)); 1832 popup.setOnItemClickListener(new OnItemClickListener() { 1833 @Override 1834 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1835 unselectChip(currentChip); 1836 popup.dismiss(); 1837 } 1838 }); 1839 popup.show(); 1840 ListView listView = popup.getListView(); 1841 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1842 listView.setItemChecked(0, true); 1843 } 1844 1845 /** 1846 * Remove selection from this chip. Unselecting a RecipientChip will render 1847 * the chip without a delete icon and with an unfocused background. This is 1848 * called when the RecipientChip no longer has focus. 1849 */ 1850 private void unselectChip(RecipientChip chip) { 1851 int start = getChipStart(chip); 1852 int end = getChipEnd(chip); 1853 Editable editable = getText(); 1854 mSelectedChip = null; 1855 if (start == -1 || end == -1) { 1856 Log.w(TAG, "The chip doesn't exist or may be a chip a user was editing"); 1857 setSelection(editable.length()); 1858 commitDefault(); 1859 } else { 1860 getSpannable().removeSpan(chip); 1861 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1862 editable.removeSpan(chip); 1863 try { 1864 if (!mNoChips) { 1865 editable.setSpan(constructChipSpan(chip.getEntry(), start, false), start, end, 1866 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1867 } 1868 } catch (NullPointerException e) { 1869 Log.e(TAG, e.getMessage(), e); 1870 } 1871 } 1872 setCursorVisible(true); 1873 setSelection(editable.length()); 1874 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1875 mAlternatesPopup.dismiss(); 1876 } 1877 } 1878 1879 /** 1880 * Return whether a touch event was inside the delete target of 1881 * a selected chip. It is in the delete target if: 1882 * 1) the x and y points of the event are within the 1883 * delete assset. 1884 * 2) the point tapped would have caused a cursor to appear 1885 * right after the selected chip. 1886 * @return boolean 1887 */ 1888 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1889 // Figure out the bounds of this chip and whether or not 1890 // the user clicked in the X portion. 1891 return chip.isSelected() && offset == getChipEnd(chip); 1892 } 1893 1894 /** 1895 * Remove the chip and any text associated with it from the RecipientEditTextView. 1896 */ 1897 // Visible for testing. 1898 /*pacakge*/ void removeChip(RecipientChip chip) { 1899 Spannable spannable = getSpannable(); 1900 int spanStart = spannable.getSpanStart(chip); 1901 int spanEnd = spannable.getSpanEnd(chip); 1902 Editable text = getText(); 1903 int toDelete = spanEnd; 1904 boolean wasSelected = chip == mSelectedChip; 1905 // Clear that there is a selected chip before updating any text. 1906 if (wasSelected) { 1907 mSelectedChip = null; 1908 } 1909 // Always remove trailing spaces when removing a chip. 1910 while (toDelete >= 0 && toDelete < text.length() && text.charAt(toDelete) == ' ') { 1911 toDelete++; 1912 } 1913 spannable.removeSpan(chip); 1914 text.delete(spanStart, toDelete); 1915 if (wasSelected) { 1916 clearSelectedChip(); 1917 } 1918 } 1919 1920 /** 1921 * Replace this currently selected chip with a new chip 1922 * that uses the contact data provided. 1923 */ 1924 // Visible for testing. 1925 /*package*/ void replaceChip(RecipientChip chip, RecipientEntry entry) { 1926 boolean wasSelected = chip == mSelectedChip; 1927 if (wasSelected) { 1928 mSelectedChip = null; 1929 } 1930 int start = getChipStart(chip); 1931 int end = getChipEnd(chip); 1932 getSpannable().removeSpan(chip); 1933 Editable editable = getText(); 1934 CharSequence chipText = createChip(entry, false); 1935 if (chipText != null) { 1936 if (start == -1 || end == -1) { 1937 Log.e(TAG, "The chip to replace does not exist but should."); 1938 editable.insert(0, chipText); 1939 } else { 1940 if (!TextUtils.isEmpty(chipText)) { 1941 // There may be a space to replace with this chip's new 1942 // associated 1943 // space. Check for it 1944 int toReplace = end; 1945 while (toReplace >= 0 && toReplace < editable.length() 1946 && editable.charAt(toReplace) == ' ') { 1947 toReplace++; 1948 } 1949 editable.replace(start, toReplace, chipText); 1950 } 1951 } 1952 } 1953 setCursorVisible(true); 1954 if (wasSelected) { 1955 clearSelectedChip(); 1956 } 1957 } 1958 1959 /** 1960 * Handle click events for a chip. When a selected chip receives a click 1961 * event, see if that event was in the delete icon. If so, delete it. 1962 * Otherwise, unselect the chip. 1963 */ 1964 public void onClick(RecipientChip chip, int offset, float x, float y) { 1965 if (chip.isSelected()) { 1966 if (isInDelete(chip, offset, x, y)) { 1967 removeChip(chip); 1968 } else { 1969 clearSelectedChip(); 1970 } 1971 } 1972 } 1973 1974 private boolean chipsPending() { 1975 return mPendingChipsCount > 0 || (mRemovedSpans != null && mRemovedSpans.size() > 0); 1976 } 1977 1978 @Override 1979 public void removeTextChangedListener(TextWatcher watcher) { 1980 mTextWatcher = null; 1981 super.removeTextChangedListener(watcher); 1982 } 1983 1984 private class RecipientTextWatcher implements TextWatcher { 1985 1986 @Override 1987 public void afterTextChanged(Editable s) { 1988 // If the text has been set to null or empty, make sure we remove 1989 // all the spans we applied. 1990 if (TextUtils.isEmpty(s)) { 1991 // Remove all the chips spans. 1992 Spannable spannable = getSpannable(); 1993 RecipientChip[] chips = spannable.getSpans(0, getText().length(), 1994 RecipientChip.class); 1995 for (RecipientChip chip : chips) { 1996 spannable.removeSpan(chip); 1997 } 1998 if (mMoreChip != null) { 1999 spannable.removeSpan(mMoreChip); 2000 } 2001 return; 2002 } 2003 // Get whether there are any recipients pending addition to the 2004 // view. If there are, don't do anything in the text watcher. 2005 if (chipsPending()) { 2006 return; 2007 } 2008 // If the user is editing a chip, don't clear it. 2009 if (mSelectedChip != null 2010 && mSelectedChip.getContactId() != RecipientEntry.INVALID_CONTACT) { 2011 setCursorVisible(true); 2012 setSelection(getText().length()); 2013 clearSelectedChip(); 2014 } 2015 int length = s.length(); 2016 // Make sure there is content there to parse and that it is 2017 // not just the commit character. 2018 if (length > 1) { 2019 char last; 2020 int end = getSelectionEnd() == 0 ? 0 : getSelectionEnd() - 1; 2021 int len = length() - 1; 2022 if (end != len) { 2023 last = s.charAt(end); 2024 } else { 2025 last = s.charAt(len); 2026 } 2027 if (last == COMMIT_CHAR_SEMICOLON || last == COMMIT_CHAR_COMMA) { 2028 commitByCharacter(); 2029 } else if (last == COMMIT_CHAR_SPACE) { 2030 // Check if this is a valid email address. If it is, 2031 // commit it. 2032 String text = getText().toString(); 2033 int tokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 2034 String sub = text.substring(tokenStart, mTokenizer.findTokenEnd(text, 2035 tokenStart)); 2036 if (!TextUtils.isEmpty(sub) && mValidator != null && mValidator.isValid(sub)) { 2037 commitByCharacter(); 2038 } 2039 } 2040 } 2041 } 2042 2043 @Override 2044 public void onTextChanged(CharSequence s, int start, int before, int count) { 2045 // This is a delete; check to see if the insertion point is on a space 2046 // following a chip. 2047 if (before > count) { 2048 // If the item deleted is a space, and the thing before the 2049 // space is a chip, delete the entire span. 2050 int selStart = getSelectionStart(); 2051 RecipientChip[] repl = getSpannable().getSpans(selStart, selStart, 2052 RecipientChip.class); 2053 if (repl.length > 0) { 2054 // There is a chip there! Just remove it. 2055 Editable editable = getText(); 2056 // Add the separator token. 2057 int tokenStart = mTokenizer.findTokenStart(editable, selStart); 2058 int tokenEnd = mTokenizer.findTokenEnd(editable, tokenStart); 2059 tokenEnd = tokenEnd + 1; 2060 if (tokenEnd > editable.length()) { 2061 tokenEnd = editable.length(); 2062 } 2063 editable.delete(tokenStart, tokenEnd); 2064 getSpannable().removeSpan(repl[0]); 2065 } 2066 } 2067 } 2068 2069 @Override 2070 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 2071 // Do nothing. 2072 } 2073 } 2074 2075 /** 2076 * Handles pasting a {@link ClipData} to this {@link RecipientEditTextView}. 2077 */ 2078 private void handlePasteClip(ClipData clip) { 2079 removeTextChangedListener(mTextWatcher); 2080 2081 if (clip != null && clip.getDescription().hasMimeType(ClipDescription.MIMETYPE_TEXT_PLAIN)){ 2082 for (int i = 0; i < clip.getItemCount(); i++) { 2083 CharSequence paste = clip.getItemAt(i).getText(); 2084 if (paste != null) { 2085 int start = getSelectionStart(); 2086 int end = getSelectionEnd(); 2087 Editable editable = getText(); 2088 if (start >= 0 && end >= 0 && start != end) { 2089 editable.append(paste, start, end); 2090 } else { 2091 editable.insert(end, paste); 2092 } 2093 handlePasteAndReplace(); 2094 } 2095 } 2096 } 2097 2098 mHandler.post(mAddTextWatcher); 2099 } 2100 2101 @Override 2102 public boolean onTextContextMenuItem(int id) { 2103 if (id == android.R.id.paste) { 2104 ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService( 2105 Context.CLIPBOARD_SERVICE); 2106 handlePasteClip(clipboard.getPrimaryClip()); 2107 return true; 2108 } 2109 return super.onTextContextMenuItem(id); 2110 } 2111 2112 private void handlePasteAndReplace() { 2113 ArrayList<RecipientChip> created = handlePaste(); 2114 if (created != null && created.size() > 0) { 2115 // Perform reverse lookups on the pasted contacts. 2116 IndividualReplacementTask replace = new IndividualReplacementTask(); 2117 replace.execute(created); 2118 } 2119 } 2120 2121 // Visible for testing. 2122 /* package */ArrayList<RecipientChip> handlePaste() { 2123 String text = getText().toString(); 2124 int originalTokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 2125 String lastAddress = text.substring(originalTokenStart); 2126 int tokenStart = originalTokenStart; 2127 int prevTokenStart = tokenStart; 2128 RecipientChip findChip = null; 2129 ArrayList<RecipientChip> created = new ArrayList<RecipientChip>(); 2130 if (tokenStart != 0) { 2131 // There are things before this! 2132 while (tokenStart != 0 && findChip == null) { 2133 prevTokenStart = tokenStart; 2134 tokenStart = mTokenizer.findTokenStart(text, tokenStart); 2135 findChip = findChip(tokenStart); 2136 } 2137 if (tokenStart != originalTokenStart) { 2138 if (findChip != null) { 2139 tokenStart = prevTokenStart; 2140 } 2141 int tokenEnd; 2142 RecipientChip createdChip; 2143 while (tokenStart < originalTokenStart) { 2144 tokenEnd = movePastTerminators(mTokenizer.findTokenEnd(text, tokenStart)); 2145 commitChip(tokenStart, tokenEnd, getText()); 2146 createdChip = findChip(tokenStart); 2147 // +1 for the space at the end. 2148 tokenStart = getSpannable().getSpanEnd(createdChip) + 1; 2149 created.add(createdChip); 2150 } 2151 } 2152 } 2153 // Take a look at the last token. If the token has been completed with a 2154 // commit character, create a chip. 2155 if (isCompletedToken(lastAddress)) { 2156 Editable editable = getText(); 2157 tokenStart = editable.toString().indexOf(lastAddress, originalTokenStart); 2158 commitChip(tokenStart, editable.length(), editable); 2159 created.add(findChip(tokenStart)); 2160 } 2161 return created; 2162 } 2163 2164 // Visible for testing. 2165 /* package */int movePastTerminators(int tokenEnd) { 2166 if (tokenEnd >= length()) { 2167 return tokenEnd; 2168 } 2169 char atEnd = getText().toString().charAt(tokenEnd); 2170 if (atEnd == COMMIT_CHAR_COMMA || atEnd == COMMIT_CHAR_SEMICOLON) { 2171 tokenEnd++; 2172 } 2173 // This token had not only an end token character, but also a space 2174 // separating it from the next token. 2175 if (tokenEnd < length() && getText().toString().charAt(tokenEnd) == ' ') { 2176 tokenEnd++; 2177 } 2178 return tokenEnd; 2179 } 2180 2181 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 2182 private RecipientChip createFreeChip(RecipientEntry entry) { 2183 try { 2184 if (mNoChips) { 2185 return null; 2186 } 2187 return constructChipSpan(entry, -1, false); 2188 } catch (NullPointerException e) { 2189 Log.e(TAG, e.getMessage(), e); 2190 return null; 2191 } 2192 } 2193 2194 @Override 2195 protected Void doInBackground(Void... params) { 2196 if (mIndividualReplacements != null) { 2197 mIndividualReplacements.cancel(true); 2198 } 2199 // For each chip in the list, look up the matching contact. 2200 // If there is a match, replace that chip with the matching 2201 // chip. 2202 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 2203 RecipientChip[] existingChips = getSortedRecipients(); 2204 for (int i = 0; i < existingChips.length; i++) { 2205 originalRecipients.add(existingChips[i]); 2206 } 2207 if (mRemovedSpans != null) { 2208 originalRecipients.addAll(mRemovedSpans); 2209 } 2210 String[] addresses = new String[originalRecipients.size()]; 2211 RecipientChip chip; 2212 for (int i = 0; i < originalRecipients.size(); i++) { 2213 chip = originalRecipients.get(i); 2214 if (chip != null) { 2215 addresses[i] = createAddressText(chip.getEntry()); 2216 } 2217 } 2218 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 2219 .getMatchingRecipients(getContext(), addresses); 2220 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 2221 for (final RecipientChip temp : originalRecipients) { 2222 RecipientEntry entry = null; 2223 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 2224 && getSpannable().getSpanStart(temp) != -1) { 2225 // Replace this. 2226 entry = createValidatedEntry(entries.get(tokenizeAddress(temp.getEntry() 2227 .getDestination()))); 2228 } 2229 if (entry != null) { 2230 replacements.add(createFreeChip(entry)); 2231 } else { 2232 replacements.add(temp); 2233 } 2234 } 2235 if (replacements != null && replacements.size() > 0) { 2236 mHandler.post(new Runnable() { 2237 @Override 2238 public void run() { 2239 SpannableStringBuilder text = new SpannableStringBuilder(getText() 2240 .toString()); 2241 Editable oldText = getText(); 2242 int start, end; 2243 int i = 0; 2244 for (RecipientChip chip : originalRecipients) { 2245 start = oldText.getSpanStart(chip); 2246 if (start != -1) { 2247 end = oldText.getSpanEnd(chip); 2248 oldText.removeSpan(chip); 2249 // Leave a spot for the space! 2250 RecipientChip replacement = replacements.get(i); 2251 text.setSpan(replacement, start, end, 2252 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 2253 replacement.setOriginalText(text.toString().substring(start, end)); 2254 } 2255 i++; 2256 } 2257 originalRecipients.clear(); 2258 setText(text); 2259 } 2260 }); 2261 } 2262 return null; 2263 } 2264 } 2265 2266 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 2267 @SuppressWarnings("unchecked") 2268 @Override 2269 protected Void doInBackground(Object... params) { 2270 // For each chip in the list, look up the matching contact. 2271 // If there is a match, replace that chip with the matching 2272 // chip. 2273 final ArrayList<RecipientChip> originalRecipients = 2274 (ArrayList<RecipientChip>) params[0]; 2275 String[] addresses = new String[originalRecipients.size()]; 2276 RecipientChip chip; 2277 for (int i = 0; i < originalRecipients.size(); i++) { 2278 chip = originalRecipients.get(i); 2279 if (chip != null) { 2280 addresses[i] = createAddressText(chip.getEntry()); 2281 } 2282 } 2283 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 2284 .getMatchingRecipients(getContext(), addresses); 2285 for (final RecipientChip temp : originalRecipients) { 2286 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 2287 && getSpannable().getSpanStart(temp) != -1) { 2288 // Replace this. 2289 final RecipientEntry entry = createValidatedEntry(entries 2290 .get(tokenizeAddress(temp.getEntry().getDestination()).toLowerCase())); 2291 if (entry != null) { 2292 mHandler.post(new Runnable() { 2293 @Override 2294 public void run() { 2295 replaceChip(temp, entry); 2296 } 2297 }); 2298 } 2299 } 2300 } 2301 return null; 2302 } 2303 } 2304 2305 2306 /** 2307 * MoreImageSpan is a simple class created for tracking the existence of a 2308 * more chip across activity restarts/ 2309 */ 2310 private class MoreImageSpan extends ImageSpan { 2311 public MoreImageSpan(Drawable b) { 2312 super(b); 2313 } 2314 } 2315 2316 @Override 2317 public boolean onDown(MotionEvent e) { 2318 return false; 2319 } 2320 2321 @Override 2322 public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { 2323 // Do nothing. 2324 return false; 2325 } 2326 2327 @Override 2328 public void onLongPress(MotionEvent event) { 2329 if (mSelectedChip != null) { 2330 return; 2331 } 2332 float x = event.getX(); 2333 float y = event.getY(); 2334 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 2335 RecipientChip currentChip = findChip(offset); 2336 if (currentChip != null) { 2337 if (mDragEnabled) { 2338 // Start drag-and-drop for the selected chip. 2339 startDrag(currentChip); 2340 } else { 2341 // Copy the selected chip email address. 2342 showCopyDialog(currentChip.getEntry().getDestination()); 2343 } 2344 } 2345 } 2346 2347 /** 2348 * Enables drag-and-drop for chips. 2349 */ 2350 public void enableDrag() { 2351 mDragEnabled = true; 2352 } 2353 2354 /** 2355 * Starts drag-and-drop for the selected chip. 2356 */ 2357 private void startDrag(RecipientChip currentChip) { 2358 String address = currentChip.getEntry().getDestination(); 2359 ClipData data = ClipData.newPlainText(address, address + COMMIT_CHAR_COMMA); 2360 2361 // Start drag mode. 2362 startDrag(data, new RecipientChipShadow(currentChip), null, 0); 2363 2364 // Remove the current chip, so drag-and-drop will result in a move. 2365 // TODO (phamm): consider readd this chip if it's dropped outside a target. 2366 removeChip(currentChip); 2367 } 2368 2369 /** 2370 * Handles drag event. 2371 */ 2372 @Override 2373 public boolean onDragEvent(DragEvent event) { 2374 switch (event.getAction()) { 2375 case DragEvent.ACTION_DRAG_STARTED: 2376 // Only handle plain text drag and drop. 2377 return event.getClipDescription().hasMimeType(ClipDescription.MIMETYPE_TEXT_PLAIN); 2378 case DragEvent.ACTION_DRAG_ENTERED: 2379 requestFocus(); 2380 return true; 2381 case DragEvent.ACTION_DROP: 2382 handlePasteClip(event.getClipData()); 2383 return true; 2384 } 2385 return false; 2386 } 2387 2388 /** 2389 * Drag shadow for a {@link RecipientChip}. 2390 */ 2391 private final class RecipientChipShadow extends DragShadowBuilder { 2392 private final RecipientChip mChip; 2393 2394 public RecipientChipShadow(RecipientChip chip) { 2395 mChip = chip; 2396 } 2397 2398 @Override 2399 public void onProvideShadowMetrics(Point shadowSize, Point shadowTouchPoint) { 2400 Rect rect = mChip.getDrawable().getBounds(); 2401 shadowSize.set(rect.width(), rect.height()); 2402 shadowTouchPoint.set(rect.centerX(), rect.centerY()); 2403 } 2404 2405 @Override 2406 public void onDrawShadow(Canvas canvas) { 2407 mChip.getDrawable().draw(canvas); 2408 } 2409 } 2410 2411 private void showCopyDialog(final String address) { 2412 mCopyAddress = address; 2413 mCopyDialog.setTitle(address); 2414 mCopyDialog.setContentView(R.layout.copy_chip_dialog_layout); 2415 mCopyDialog.setCancelable(true); 2416 mCopyDialog.setCanceledOnTouchOutside(true); 2417 mCopyDialog.findViewById(android.R.id.button1).setOnClickListener(this); 2418 mCopyDialog.setOnDismissListener(this); 2419 mCopyDialog.show(); 2420 } 2421 2422 @Override 2423 public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) { 2424 // Do nothing. 2425 return false; 2426 } 2427 2428 @Override 2429 public void onShowPress(MotionEvent e) { 2430 // Do nothing. 2431 } 2432 2433 @Override 2434 public boolean onSingleTapUp(MotionEvent e) { 2435 // Do nothing. 2436 return false; 2437 } 2438 2439 @Override 2440 public void onDismiss(DialogInterface dialog) { 2441 mCopyAddress = null; 2442 } 2443 2444 @Override 2445 public void onClick(View v) { 2446 // Copy this to the clipboard. 2447 ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService( 2448 Context.CLIPBOARD_SERVICE); 2449 clipboard.setPrimaryClip(ClipData.newPlainText("", mCopyAddress)); 2450 mCopyDialog.dismiss(); 2451 } 2452} 2453