RecipientEditTextView.java revision 5e05ba80bdb12dfb5f40f202f57c55f5b68a311a
1/* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.ex.chips; 18 19import android.app.Dialog; 20import android.content.ClipData; 21import android.content.ClipDescription; 22import android.content.ClipboardManager; 23import android.content.Context; 24import android.content.DialogInterface; 25import android.content.DialogInterface.OnDismissListener; 26import android.content.res.Resources; 27import android.content.res.TypedArray; 28import android.graphics.Bitmap; 29import android.graphics.BitmapFactory; 30import android.graphics.Canvas; 31import android.graphics.Matrix; 32import android.graphics.Point; 33import android.graphics.Rect; 34import android.graphics.RectF; 35import android.graphics.drawable.BitmapDrawable; 36import android.graphics.drawable.Drawable; 37import android.os.AsyncTask; 38import android.os.Handler; 39import android.os.Message; 40import android.os.Parcelable; 41import android.text.Editable; 42import android.text.InputType; 43import android.text.Layout; 44import android.text.Spannable; 45import android.text.SpannableString; 46import android.text.SpannableStringBuilder; 47import android.text.Spanned; 48import android.text.TextPaint; 49import android.text.TextUtils; 50import android.text.TextWatcher; 51import android.text.method.QwertyKeyListener; 52import android.text.style.ImageSpan; 53import android.text.util.Rfc822Token; 54import android.text.util.Rfc822Tokenizer; 55import android.util.AttributeSet; 56import android.util.Log; 57import android.util.Patterns; 58import android.view.ActionMode; 59import android.view.ActionMode.Callback; 60import android.view.DragEvent; 61import android.view.GestureDetector; 62import android.view.KeyEvent; 63import android.view.LayoutInflater; 64import android.view.Menu; 65import android.view.MenuItem; 66import android.view.MotionEvent; 67import android.view.View; 68import android.view.View.OnClickListener; 69import android.view.ViewParent; 70import android.widget.AdapterView; 71import android.widget.AdapterView.OnItemClickListener; 72import android.widget.Button; 73import android.widget.ListAdapter; 74import android.widget.ListPopupWindow; 75import android.widget.ListView; 76import android.widget.MultiAutoCompleteTextView; 77import android.widget.PopupWindow; 78import android.widget.ScrollView; 79import android.widget.TextView; 80 81import java.util.ArrayList; 82import java.util.Arrays; 83import java.util.Collection; 84import java.util.Collections; 85import java.util.Comparator; 86import java.util.HashMap; 87import java.util.HashSet; 88import java.util.Set; 89import java.util.regex.Matcher; 90 91/** 92 * RecipientEditTextView is an auto complete text view for use with applications 93 * that use the new Chips UI for addressing a message to recipients. 94 */ 95public class RecipientEditTextView extends MultiAutoCompleteTextView implements 96 OnItemClickListener, Callback, RecipientAlternatesAdapter.OnCheckedItemChangedListener, 97 GestureDetector.OnGestureListener, OnDismissListener, OnClickListener, 98 PopupWindow.OnDismissListener { 99 100 private static final char COMMIT_CHAR_COMMA = ','; 101 102 private static final char COMMIT_CHAR_SEMICOLON = ';'; 103 104 private static final char COMMIT_CHAR_SPACE = ' '; 105 106 private static final String TAG = "RecipientEditTextView"; 107 108 private static int DISMISS = "dismiss".hashCode(); 109 110 private static final long DISMISS_DELAY = 300; 111 112 // TODO: get correct number/ algorithm from with UX. 113 // Visible for testing. 114 /*package*/ static final int CHIP_LIMIT = 2; 115 116 private static final int MAX_CHIPS_PARSED = 50; 117 118 private static int sSelectedTextColor = -1; 119 120 // Resources for displaying chips. 121 private Drawable mChipBackground = null; 122 123 private Drawable mChipDelete = null; 124 125 private Drawable mInvalidChipBackground; 126 127 private Drawable mChipBackgroundPressed; 128 129 private float mChipHeight; 130 131 private float mChipFontSize; 132 133 private int mChipPadding; 134 135 private Tokenizer mTokenizer; 136 137 private Validator mValidator; 138 139 private RecipientChip mSelectedChip; 140 141 private int mAlternatesLayout; 142 143 private Bitmap mDefaultContactPhoto; 144 145 private ImageSpan mMoreChip; 146 147 private TextView mMoreItem; 148 149 private final ArrayList<String> mPendingChips = new ArrayList<String>(); 150 151 private Handler mHandler; 152 153 private int mPendingChipsCount = 0; 154 155 private boolean mNoChips = false; 156 157 private ListPopupWindow mAlternatesPopup; 158 159 private ListPopupWindow mAddressPopup; 160 161 private ArrayList<RecipientChip> mTemporaryRecipients; 162 163 private ArrayList<RecipientChip> mRemovedSpans; 164 165 private boolean mShouldShrink = true; 166 167 // Chip copy fields. 168 private GestureDetector mGestureDetector; 169 170 private Dialog mCopyDialog; 171 172 private String mCopyAddress; 173 174 /** 175 * Used with {@link #mAlternatesPopup}. Handles clicks to alternate addresses for a 176 * selected chip. 177 */ 178 private OnItemClickListener mAlternatesListener; 179 180 private int mCheckedItem; 181 182 private TextWatcher mTextWatcher; 183 184 // Obtain the enclosing scroll view, if it exists, so that the view can be 185 // scrolled to show the last line of chips content. 186 private ScrollView mScrollView; 187 188 private boolean mTriedGettingScrollView; 189 190 private boolean mDragEnabled = false; 191 192 private final Runnable mAddTextWatcher = new Runnable() { 193 @Override 194 public void run() { 195 if (mTextWatcher == null) { 196 mTextWatcher = new RecipientTextWatcher(); 197 addTextChangedListener(mTextWatcher); 198 } 199 } 200 }; 201 202 private IndividualReplacementTask mIndividualReplacements; 203 204 private Runnable mHandlePendingChips = new Runnable() { 205 206 @Override 207 public void run() { 208 handlePendingChips(); 209 } 210 211 }; 212 213 private Runnable mDelayedShrink = new Runnable() { 214 215 @Override 216 public void run() { 217 shrink(); 218 } 219 220 }; 221 222 public RecipientEditTextView(Context context, AttributeSet attrs) { 223 super(context, attrs); 224 setChipDimensions(context, attrs); 225 if (sSelectedTextColor == -1) { 226 sSelectedTextColor = context.getResources().getColor(android.R.color.white); 227 } 228 mAlternatesPopup = new ListPopupWindow(context); 229 mAlternatesPopup.setOnDismissListener(this); 230 mAddressPopup = new ListPopupWindow(context); 231 mAddressPopup.setOnDismissListener(this); 232 mCopyDialog = new Dialog(context); 233 mAlternatesListener = new OnItemClickListener() { 234 @Override 235 public void onItemClick(AdapterView<?> adapterView,View view, int position, 236 long rowId) { 237 mAlternatesPopup.setOnItemClickListener(null); 238 setEnabled(true); 239 replaceChip(mSelectedChip, ((RecipientAlternatesAdapter) adapterView.getAdapter()) 240 .getRecipientEntry(position)); 241 Message delayed = Message.obtain(mHandler, DISMISS); 242 delayed.obj = mAlternatesPopup; 243 mHandler.sendMessageDelayed(delayed, DISMISS_DELAY); 244 clearComposingText(); 245 } 246 }; 247 setInputType(getInputType() | InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS); 248 setOnItemClickListener(this); 249 setCustomSelectionActionModeCallback(this); 250 mHandler = new Handler() { 251 @Override 252 public void handleMessage(Message msg) { 253 if (msg.what == DISMISS) { 254 ((ListPopupWindow) msg.obj).dismiss(); 255 return; 256 } 257 super.handleMessage(msg); 258 } 259 }; 260 mTextWatcher = new RecipientTextWatcher(); 261 addTextChangedListener(mTextWatcher); 262 mGestureDetector = new GestureDetector(context, this); 263 } 264 265 /*package*/ RecipientChip getLastChip() { 266 RecipientChip last = null; 267 RecipientChip[] chips = getSortedRecipients(); 268 if (chips != null && chips.length > 0) { 269 last = chips[chips.length - 1]; 270 } 271 return last; 272 } 273 274 @Override 275 public void onSelectionChanged(int start, int end) { 276 // When selection changes, see if it is inside the chips area. 277 // If so, move the cursor back after the chips again. 278 RecipientChip last = getLastChip(); 279 if (last != null && start < getSpannable().getSpanEnd(last)) { 280 // Grab the last chip and set the cursor to after it. 281 setSelection(Math.min(getSpannable().getSpanEnd(last) + 1, getText().length())); 282 } 283 super.onSelectionChanged(start, end); 284 } 285 286 @Override 287 public void onRestoreInstanceState(Parcelable state) { 288 if (!TextUtils.isEmpty(getText())) { 289 super.onRestoreInstanceState(null); 290 } else { 291 super.onRestoreInstanceState(state); 292 } 293 } 294 295 @Override 296 public Parcelable onSaveInstanceState() { 297 // If the user changes orientation while they are editing, just roll back the selection. 298 clearSelectedChip(); 299 return super.onSaveInstanceState(); 300 } 301 302 /** 303 * Convenience method: Append the specified text slice to the TextView's 304 * display buffer, upgrading it to BufferType.EDITABLE if it was 305 * not already editable. Commas are excluded as they are added automatically 306 * by the view. 307 */ 308 @Override 309 public void append(CharSequence text, int start, int end) { 310 // We don't care about watching text changes while appending. 311 if (mTextWatcher != null) { 312 removeTextChangedListener(mTextWatcher); 313 } 314 super.append(text, start, end); 315 if (!TextUtils.isEmpty(text) && TextUtils.getTrimmedLength(text) > 0) { 316 final String displayString = text.toString(); 317 int seperatorPos = displayString.indexOf(COMMIT_CHAR_COMMA); 318 if (seperatorPos != 0 && !TextUtils.isEmpty(displayString) 319 && TextUtils.getTrimmedLength(displayString) > 0) { 320 mPendingChipsCount++; 321 mPendingChips.add(text.toString()); 322 } 323 } 324 // Put a message on the queue to make sure we ALWAYS handle pending chips. 325 if (mPendingChipsCount > 0) { 326 postHandlePendingChips(); 327 } 328 mHandler.post(mAddTextWatcher); 329 } 330 331 @Override 332 public void onFocusChanged(boolean hasFocus, int direction, Rect previous) { 333 super.onFocusChanged(hasFocus, direction, previous); 334 if (!hasFocus) { 335 shrink(); 336 } else { 337 expand(); 338 } 339 } 340 341 @Override 342 public void performValidation() { 343 // Do nothing. Chips handles its own validation. 344 } 345 346 private void shrink() { 347 if (mTokenizer == null) { 348 return; 349 } 350 if (mSelectedChip != null 351 && mSelectedChip.getEntry().getContactId() != RecipientEntry.INVALID_CONTACT) { 352 clearSelectedChip(); 353 } else { 354 if (getWidth() <= 0) { 355 // We don't have the width yet which means the view hasn't been drawn yet 356 // and there is no reason to attempt to commit chips yet. 357 // This focus lost must be the result of an orientation change 358 // or an initial rendering. 359 // Re-post the shrink for later. 360 mHandler.removeCallbacks(mDelayedShrink); 361 mHandler.post(mDelayedShrink); 362 return; 363 } 364 // Reset any pending chips as they would have been handled 365 // when the field lost focus. 366 if (mPendingChipsCount > 0) { 367 postHandlePendingChips(); 368 } else { 369 Editable editable = getText(); 370 int end = getSelectionEnd(); 371 int start = mTokenizer.findTokenStart(editable, end); 372 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 373 if ((chips == null || chips.length == 0)) { 374 Editable text = getText(); 375 int whatEnd = mTokenizer.findTokenEnd(text, start); 376 // This token was already tokenized, so skip past the ending token. 377 if (whatEnd < text.length() && text.charAt(whatEnd) == ',') { 378 whatEnd++; 379 } 380 // In the middle of chip; treat this as an edit 381 // and commit the whole token. 382 int selEnd = getSelectionEnd(); 383 if (whatEnd != selEnd) { 384 handleEdit(start, whatEnd); 385 } else { 386 commitChip(start, end, editable); 387 } 388 } 389 } 390 mHandler.post(mAddTextWatcher); 391 } 392 createMoreChip(); 393 } 394 395 private void expand() { 396 removeMoreChip(); 397 setCursorVisible(true); 398 Editable text = getText(); 399 setSelection(text != null && text.length() > 0 ? text.length() : 0); 400 // If there are any temporary chips, try replacing them now that the user 401 // has expanded the field. 402 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0) { 403 new RecipientReplacementTask().execute(); 404 mTemporaryRecipients = null; 405 } 406 } 407 408 private CharSequence ellipsizeText(CharSequence text, TextPaint paint, float maxWidth) { 409 paint.setTextSize(mChipFontSize); 410 if (maxWidth <= 0 && Log.isLoggable(TAG, Log.DEBUG)) { 411 Log.d(TAG, "Max width is negative: " + maxWidth); 412 } 413 return TextUtils.ellipsize(text, paint, maxWidth, 414 TextUtils.TruncateAt.END); 415 } 416 417 private Bitmap createSelectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 418 // Ellipsize the text so that it takes AT MOST the entire width of the 419 // autocomplete text entry area. Make sure to leave space for padding 420 // on the sides. 421 int height = (int) mChipHeight; 422 int deleteWidth = height; 423 float[] widths = new float[1]; 424 paint.getTextWidths(" ", widths); 425 CharSequence ellipsizedText = ellipsizeText(createChipDisplayText(contact), paint, 426 calculateAvailableWidth(true) - deleteWidth - widths[0]); 427 428 // Make sure there is a minimum chip width so the user can ALWAYS 429 // tap a chip without difficulty. 430 int width = Math.max(deleteWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 431 ellipsizedText.length())) 432 + (mChipPadding * 2) + deleteWidth); 433 434 // Create the background of the chip. 435 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 436 Canvas canvas = new Canvas(tmpBitmap); 437 if (mChipBackgroundPressed != null) { 438 mChipBackgroundPressed.setBounds(0, 0, width, height); 439 mChipBackgroundPressed.draw(canvas); 440 paint.setColor(sSelectedTextColor); 441 // Vertically center the text in the chip. 442 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 443 getTextYOffset((String) ellipsizedText, paint, height), paint); 444 // Make the delete a square. 445 Rect backgroundPadding = new Rect(); 446 mChipBackgroundPressed.getPadding(backgroundPadding); 447 mChipDelete.setBounds(width - deleteWidth + backgroundPadding.left, 448 0 + backgroundPadding.top, 449 width - backgroundPadding.right, 450 height - backgroundPadding.bottom); 451 mChipDelete.draw(canvas); 452 } else { 453 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 454 } 455 return tmpBitmap; 456 } 457 458 459 private Bitmap createUnselectedChip(RecipientEntry contact, TextPaint paint, Layout layout) { 460 // Ellipsize the text so that it takes AT MOST the entire width of the 461 // autocomplete text entry area. Make sure to leave space for padding 462 // on the sides. 463 int height = (int) mChipHeight; 464 int iconWidth = height; 465 float[] widths = new float[1]; 466 paint.getTextWidths(" ", widths); 467 CharSequence ellipsizedText = ellipsizeText(createChipDisplayText(contact), paint, 468 calculateAvailableWidth(false) - iconWidth - widths[0]); 469 // Make sure there is a minimum chip width so the user can ALWAYS 470 // tap a chip without difficulty. 471 int width = Math.max(iconWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, 472 ellipsizedText.length())) 473 + (mChipPadding * 2) + iconWidth); 474 475 // Create the background of the chip. 476 Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 477 Canvas canvas = new Canvas(tmpBitmap); 478 Drawable background = getChipBackground(contact); 479 if (background != null) { 480 background.setBounds(0, 0, width, height); 481 background.draw(canvas); 482 483 // Don't draw photos for recipients that have been typed in. 484 if (contact.getContactId() != RecipientEntry.INVALID_CONTACT) { 485 byte[] photoBytes = contact.getPhotoBytes(); 486 // There may not be a photo yet if anything but the first contact address 487 // was selected. 488 if (photoBytes == null && contact.getPhotoThumbnailUri() != null) { 489 // TODO: cache this in the recipient entry? 490 ((BaseRecipientAdapter) getAdapter()).fetchPhoto(contact, contact 491 .getPhotoThumbnailUri()); 492 photoBytes = contact.getPhotoBytes(); 493 } 494 495 Bitmap photo; 496 if (photoBytes != null) { 497 photo = BitmapFactory.decodeByteArray(photoBytes, 0, photoBytes.length); 498 } else { 499 // TODO: can the scaled down default photo be cached? 500 photo = mDefaultContactPhoto; 501 } 502 // Draw the photo on the left side. 503 if (photo != null) { 504 RectF src = new RectF(0, 0, photo.getWidth(), photo.getHeight()); 505 Rect backgroundPadding = new Rect(); 506 mChipBackground.getPadding(backgroundPadding); 507 RectF dst = new RectF(width - iconWidth + backgroundPadding.left, 508 0 + backgroundPadding.top, 509 width - backgroundPadding.right, 510 height - backgroundPadding.bottom); 511 Matrix matrix = new Matrix(); 512 matrix.setRectToRect(src, dst, Matrix.ScaleToFit.FILL); 513 canvas.drawBitmap(photo, matrix, paint); 514 } 515 } else { 516 // Don't leave any space for the icon. It isn't being drawn. 517 iconWidth = 0; 518 } 519 paint.setColor(getContext().getResources().getColor(android.R.color.black)); 520 // Vertically center the text in the chip. 521 canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, 522 getTextYOffset((String)ellipsizedText, paint, height), paint); 523 } else { 524 Log.w(TAG, "Unable to draw a background for the chips as it was never set"); 525 } 526 return tmpBitmap; 527 } 528 529 /** 530 * Get the background drawable for a RecipientChip. 531 */ 532 // Visible for testing. 533 /*package*/ Drawable getChipBackground(RecipientEntry contact) { 534 return (mValidator != null && mValidator.isValid(contact.getDestination())) ? 535 mChipBackground : mInvalidChipBackground; 536 } 537 538 private float getTextYOffset(String text, TextPaint paint, int height) { 539 Rect bounds = new Rect(); 540 paint.getTextBounds(text, 0, text.length(), bounds); 541 int textHeight = bounds.bottom - bounds.top - (int)paint.descent(); 542 return height - ((height - textHeight) / 2); 543 } 544 545 private RecipientChip constructChipSpan(RecipientEntry contact, int offset, boolean pressed) 546 throws NullPointerException { 547 if (mChipBackground == null) { 548 throw new NullPointerException( 549 "Unable to render any chips as setChipDimensions was not called."); 550 } 551 Layout layout = getLayout(); 552 553 TextPaint paint = getPaint(); 554 float defaultSize = paint.getTextSize(); 555 int defaultColor = paint.getColor(); 556 557 Bitmap tmpBitmap; 558 if (pressed) { 559 tmpBitmap = createSelectedChip(contact, paint, layout); 560 561 } else { 562 tmpBitmap = createUnselectedChip(contact, paint, layout); 563 } 564 565 // Pass the full text, un-ellipsized, to the chip. 566 Drawable result = new BitmapDrawable(getResources(), tmpBitmap); 567 result.setBounds(0, 0, tmpBitmap.getWidth(), tmpBitmap.getHeight()); 568 RecipientChip recipientChip = new RecipientChip(result, contact, offset); 569 // Return text to the original size. 570 paint.setTextSize(defaultSize); 571 paint.setColor(defaultColor); 572 return recipientChip; 573 } 574 575 /** 576 * Calculate the bottom of the line the chip will be located on using: 577 * 1) which line the chip appears on 578 * 2) the height of a chip 579 * 3) padding built into the edit text view 580 */ 581 private int calculateOffsetFromBottom(int line) { 582 // Line offsets start at zero. 583 int actualLine = getLineCount() - (line + 1); 584 return -((actualLine * ((int) mChipHeight) + getPaddingBottom()) + getPaddingTop()) 585 + getDropDownVerticalOffset(); 586 } 587 588 /** 589 * Get the max amount of space a chip can take up. The formula takes into 590 * account the width of the EditTextView, any view padding, and padding 591 * that will be added to the chip. 592 */ 593 private float calculateAvailableWidth(boolean pressed) { 594 return getWidth() - getPaddingLeft() - getPaddingRight() - (mChipPadding * 2); 595 } 596 597 598 private void setChipDimensions(Context context, AttributeSet attrs) { 599 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.RecipientEditTextView, 0, 600 0); 601 Resources r = getContext().getResources(); 602 mChipBackground = a.getDrawable(R.styleable.RecipientEditTextView_chipBackground); 603 if (mChipBackground == null) { 604 mChipBackground = r.getDrawable(R.drawable.chip_background); 605 } 606 mChipBackgroundPressed = a 607 .getDrawable(R.styleable.RecipientEditTextView_chipBackgroundPressed); 608 if (mChipBackgroundPressed == null) { 609 mChipBackgroundPressed = r.getDrawable(R.drawable.chip_background_selected); 610 } 611 mChipDelete = a.getDrawable(R.styleable.RecipientEditTextView_chipDelete); 612 if (mChipDelete == null) { 613 mChipDelete = r.getDrawable(R.drawable.chip_delete); 614 } 615 mChipPadding = a.getDimensionPixelSize(R.styleable.RecipientEditTextView_chipPadding, -1); 616 if (mChipPadding == -1) { 617 mChipPadding = (int) r.getDimension(R.dimen.chip_padding); 618 } 619 mAlternatesLayout = a.getResourceId(R.styleable.RecipientEditTextView_chipAlternatesLayout, 620 -1); 621 if (mAlternatesLayout == -1) { 622 mAlternatesLayout = R.layout.chips_alternate_item; 623 } 624 625 mDefaultContactPhoto = BitmapFactory.decodeResource(r, R.drawable.ic_contact_picture); 626 627 mMoreItem = (TextView) LayoutInflater.from(getContext()).inflate(R.layout.more_item, null); 628 629 mChipHeight = a.getDimensionPixelSize(R.styleable.RecipientEditTextView_chipHeight, -1); 630 if (mChipHeight == -1) { 631 mChipHeight = r.getDimension(R.dimen.chip_height); 632 } 633 mChipFontSize = a.getDimensionPixelSize(R.styleable.RecipientEditTextView_chipFontSize, -1); 634 if (mChipFontSize == -1) { 635 mChipFontSize = r.getDimension(R.dimen.chip_text_size); 636 } 637 mInvalidChipBackground = a 638 .getDrawable(R.styleable.RecipientEditTextView_invalidChipBackground); 639 if (mInvalidChipBackground == null) { 640 mInvalidChipBackground = r.getDrawable(R.drawable.chip_background_invalid); 641 } 642 } 643 644 // Visible for testing. 645 /* package */ void setMoreItem(TextView moreItem) { 646 mMoreItem = moreItem; 647 } 648 649 650 // Visible for testing. 651 /* package */ void setChipBackground(Drawable chipBackground) { 652 mChipBackground = chipBackground; 653 } 654 655 // Visible for testing. 656 /* package */ void setChipHeight(int height) { 657 mChipHeight = height; 658 } 659 660 /** 661 * Set whether to shrink the recipients field such that at most 662 * one line of recipients chips are shown when the field loses 663 * focus. By default, the number of displayed recipients will be 664 * limited and a "more" chip will be shown when focus is lost. 665 * @param shrink 666 */ 667 public void setOnFocusListShrinkRecipients(boolean shrink) { 668 mShouldShrink = shrink; 669 } 670 671 @Override 672 public void onSizeChanged(int width, int height, int oldw, int oldh) { 673 super.onSizeChanged(width, height, oldw, oldh); 674 if (width != 0 && height != 0) { 675 if (mPendingChipsCount > 0) { 676 postHandlePendingChips(); 677 } else { 678 checkChipWidths(); 679 } 680 } 681 // Try to find the scroll view parent, if it exists. 682 if (mScrollView == null && !mTriedGettingScrollView) { 683 ViewParent parent = getParent(); 684 while (parent != null && !(parent instanceof ScrollView)) { 685 parent = parent.getParent(); 686 } 687 if (parent != null) { 688 mScrollView = (ScrollView) parent; 689 } 690 mTriedGettingScrollView = true; 691 } 692 } 693 694 private void postHandlePendingChips() { 695 mHandler.removeCallbacks(mHandlePendingChips); 696 mHandler.post(mHandlePendingChips); 697 } 698 699 private void checkChipWidths() { 700 // Check the widths of the associated chips. 701 RecipientChip[] chips = getSortedRecipients(); 702 if (chips != null) { 703 Rect bounds; 704 for (RecipientChip chip : chips) { 705 bounds = chip.getDrawable().getBounds(); 706 if (getWidth() > 0 && bounds.right - bounds.left > getWidth()) { 707 // Need to redraw that chip. 708 replaceChip(chip, chip.getEntry()); 709 } 710 } 711 } 712 } 713 714 // Visible for testing. 715 /*package*/ void handlePendingChips() { 716 if (getViewWidth() <= 0) { 717 // The widget has not been sized yet. 718 // This will be called as a result of onSizeChanged 719 // at a later point. 720 return; 721 } 722 if (mPendingChipsCount <= 0) { 723 return; 724 } 725 726 synchronized (mPendingChips) { 727 Editable editable = getText(); 728 // Tokenize! 729 if (mPendingChipsCount <= MAX_CHIPS_PARSED) { 730 for (int i = 0; i < mPendingChips.size(); i++) { 731 String current = mPendingChips.get(i); 732 int tokenStart = editable.toString().indexOf(current); 733 int tokenEnd = tokenStart + current.length(); 734 if (tokenStart >= 0) { 735 // When we have a valid token, include it with the token 736 // to the left. 737 if (tokenEnd < editable.length() - 2 738 && editable.charAt(tokenEnd) == COMMIT_CHAR_COMMA) { 739 tokenEnd++; 740 } 741 createReplacementChip(tokenStart, tokenEnd, editable); 742 } 743 mPendingChipsCount--; 744 } 745 sanitizeEnd(); 746 } else { 747 mNoChips = true; 748 } 749 750 if (mTemporaryRecipients != null && mTemporaryRecipients.size() > 0 751 && mTemporaryRecipients.size() <= RecipientAlternatesAdapter.MAX_LOOKUPS) { 752 if (hasFocus() || mTemporaryRecipients.size() < CHIP_LIMIT) { 753 new RecipientReplacementTask().execute(); 754 mTemporaryRecipients = null; 755 } else { 756 // Create the "more" chip 757 mIndividualReplacements = new IndividualReplacementTask(); 758 mIndividualReplacements.execute(new ArrayList<RecipientChip>( 759 mTemporaryRecipients.subList(0, CHIP_LIMIT))); 760 761 createMoreChip(); 762 } 763 } else { 764 // There are too many recipients to look up, so just fall back 765 // to showing addresses for all of them. 766 mTemporaryRecipients = null; 767 createMoreChip(); 768 } 769 mPendingChipsCount = 0; 770 mPendingChips.clear(); 771 } 772 } 773 774 // Visible for testing. 775 /*package*/ int getViewWidth() { 776 return getWidth(); 777 } 778 779 /** 780 * Remove any characters after the last valid chip. 781 */ 782 // Visible for testing. 783 /*package*/ void sanitizeEnd() { 784 // Don't sanitize while we are waiting for pending chips to complete. 785 if (mPendingChipsCount > 0) { 786 return; 787 } 788 // Find the last chip; eliminate any commit characters after it. 789 RecipientChip[] chips = getSortedRecipients(); 790 if (chips != null && chips.length > 0) { 791 int end; 792 ImageSpan lastSpan; 793 mMoreChip = getMoreChip(); 794 if (mMoreChip != null) { 795 lastSpan = mMoreChip; 796 } else { 797 lastSpan = getLastChip(); 798 } 799 end = getSpannable().getSpanEnd(lastSpan); 800 Editable editable = getText(); 801 int length = editable.length(); 802 if (length > end) { 803 // See what characters occur after that and eliminate them. 804 if (Log.isLoggable(TAG, Log.DEBUG)) { 805 Log.d(TAG, "There were extra characters after the last tokenizable entry." 806 + editable); 807 } 808 editable.delete(end + 1, length); 809 } 810 } 811 } 812 813 /** 814 * Create a chip that represents just the email address of a recipient. At some later 815 * point, this chip will be attached to a real contact entry, if one exists. 816 */ 817 private void createReplacementChip(int tokenStart, int tokenEnd, Editable editable) { 818 if (alreadyHasChip(tokenStart, tokenEnd)) { 819 // There is already a chip present at this location. 820 // Don't recreate it. 821 return; 822 } 823 String token = editable.toString().substring(tokenStart, tokenEnd); 824 int commitCharIndex = token.trim().lastIndexOf(COMMIT_CHAR_COMMA); 825 if (commitCharIndex == token.length() - 1) { 826 token = token.substring(0, token.length() - 1); 827 } 828 RecipientEntry entry = createTokenizedEntry(token); 829 if (entry != null) { 830 String destText = createAddressText(entry); 831 // Always leave a blank space at the end of a chip. 832 int textLength = destText.length() - 1; 833 SpannableString chipText = new SpannableString(destText); 834 int end = getSelectionEnd(); 835 int start = mTokenizer != null ? mTokenizer.findTokenStart(getText(), end) : 0; 836 RecipientChip chip = null; 837 try { 838 if (!mNoChips) { 839 chip = constructChipSpan(entry, start, false); 840 chipText.setSpan(chip, 0, textLength, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 841 } 842 } catch (NullPointerException e) { 843 Log.e(TAG, e.getMessage(), e); 844 } 845 editable.replace(tokenStart, tokenEnd, chipText); 846 // Add this chip to the list of entries "to replace" 847 if (chip != null) { 848 if (mTemporaryRecipients == null) { 849 mTemporaryRecipients = new ArrayList<RecipientChip>(); 850 } 851 chip.setOriginalText(chipText.toString()); 852 mTemporaryRecipients.add(chip); 853 } 854 } 855 } 856 857 private static boolean isPhoneNumber(String number) { 858 // TODO: replace this function with libphonenumber's isPossibleNumber (see 859 // PhoneNumberUtil). One complication is that it requires the sender's region which 860 // comes from the CurrentCountryIso. For now, let's just do this simple match. 861 if (TextUtils.isEmpty(number)) { 862 return false; 863 } 864 865 Matcher match = Patterns.PHONE.matcher(number); 866 return match.matches(); 867 } 868 869 private RecipientEntry createTokenizedEntry(String token) { 870 if (TextUtils.isEmpty(token)) { 871 return null; 872 } 873 if (((BaseRecipientAdapter)getAdapter()).getQueryType() == 874 BaseRecipientAdapter.QUERY_TYPE_PHONE && isPhoneNumber(token)) { 875 return RecipientEntry 876 .constructFakeEntry(token); 877 } 878 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(token); 879 String display = null; 880 if (isValid(token) && tokens != null && tokens.length > 0) { 881 // If we can get a name from tokenizing, then generate an entry from 882 // this. 883 display = tokens[0].getName(); 884 if (!TextUtils.isEmpty(display)) { 885 return RecipientEntry.constructGeneratedEntry(display, token); 886 } else { 887 display = tokens[0].getAddress(); 888 if (!TextUtils.isEmpty(display)) { 889 return RecipientEntry.constructFakeEntry(display); 890 } 891 } 892 } 893 // Unable to validate the token or to create a valid token from it. 894 // Just create a chip the user can edit. 895 String validatedToken = null; 896 if (mValidator != null && !mValidator.isValid(token)) { 897 // Try fixing up the entry using the validator. 898 validatedToken = mValidator.fixText(token).toString(); 899 if (!TextUtils.isEmpty(validatedToken)) { 900 if (validatedToken.contains(token)) { 901 // protect against the case of a validator with a null domain, 902 // which doesn't add a domain to the token 903 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(validatedToken); 904 if (tokenized.length > 0) { 905 validatedToken = tokenized[0].getAddress(); 906 } 907 } else { 908 // We ran into a case where the token was invalid and removed 909 // by the validator. In this case, just use the original token 910 // and let the user sort out the error chip. 911 validatedToken = null; 912 } 913 } 914 } 915 // Otherwise, fallback to just creating an editable email address chip. 916 return RecipientEntry 917 .constructFakeEntry(!TextUtils.isEmpty(validatedToken) ? validatedToken : token); 918 } 919 920 private boolean isValid(String text) { 921 return mValidator == null ? true : mValidator.isValid(text); 922 } 923 924 private String tokenizeAddress(String destination) { 925 Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(destination); 926 if (tokens != null && tokens.length > 0) { 927 return tokens[0].getAddress(); 928 } 929 return destination; 930 } 931 932 @Override 933 public void setTokenizer(Tokenizer tokenizer) { 934 mTokenizer = tokenizer; 935 super.setTokenizer(mTokenizer); 936 } 937 938 @Override 939 public void setValidator(Validator validator) { 940 mValidator = validator; 941 super.setValidator(validator); 942 } 943 944 /** 945 * We cannot use the default mechanism for replaceText. Instead, 946 * we override onItemClickListener so we can get all the associated 947 * contact information including display text, address, and id. 948 */ 949 @Override 950 protected void replaceText(CharSequence text) { 951 return; 952 } 953 954 /** 955 * Dismiss any selected chips when the back key is pressed. 956 */ 957 @Override 958 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 959 if (keyCode == KeyEvent.KEYCODE_BACK) { 960 clearSelectedChip(); 961 } 962 return super.onKeyPreIme(keyCode, event); 963 } 964 965 /** 966 * Monitor key presses in this view to see if the user types 967 * any commit keys, which consist of ENTER, TAB, or DPAD_CENTER. 968 * If the user has entered text that has contact matches and types 969 * a commit key, create a chip from the topmost matching contact. 970 * If the user has entered text that has no contact matches and types 971 * a commit key, then create a chip from the text they have entered. 972 */ 973 @Override 974 public boolean onKeyUp(int keyCode, KeyEvent event) { 975 switch (keyCode) { 976 case KeyEvent.KEYCODE_ENTER: 977 case KeyEvent.KEYCODE_DPAD_CENTER: 978 if (event.hasNoModifiers()) { 979 if (commitDefault()) { 980 return true; 981 } 982 if (mSelectedChip != null) { 983 clearSelectedChip(); 984 return true; 985 } else if (focusNext()) { 986 return true; 987 } 988 } 989 break; 990 case KeyEvent.KEYCODE_TAB: 991 if (event.hasNoModifiers()) { 992 if (mSelectedChip != null) { 993 clearSelectedChip(); 994 } else { 995 commitDefault(); 996 } 997 if (focusNext()) { 998 return true; 999 } 1000 } 1001 } 1002 return super.onKeyUp(keyCode, event); 1003 } 1004 1005 private boolean focusNext() { 1006 View next = focusSearch(View.FOCUS_DOWN); 1007 if (next != null) { 1008 next.requestFocus(); 1009 return true; 1010 } 1011 return false; 1012 } 1013 1014 /** 1015 * Create a chip from the default selection. If the popup is showing, the 1016 * default is the first item in the popup suggestions list. Otherwise, it is 1017 * whatever the user had typed in. End represents where the the tokenizer 1018 * should search for a token to turn into a chip. 1019 * @return If a chip was created from a real contact. 1020 */ 1021 private boolean commitDefault() { 1022 Editable editable = getText(); 1023 int end = getSelectionEnd(); 1024 int start = mTokenizer.findTokenStart(editable, end); 1025 1026 if (shouldCreateChip(start, end)) { 1027 int whatEnd = mTokenizer.findTokenEnd(getText(), start); 1028 // In the middle of chip; treat this as an edit 1029 // and commit the whole token. 1030 if (whatEnd != getSelectionEnd()) { 1031 handleEdit(start, whatEnd); 1032 return true; 1033 } 1034 return commitChip(start, end , editable); 1035 } 1036 return false; 1037 } 1038 1039 private void commitByCharacter() { 1040 Editable editable = getText(); 1041 int end = getSelectionEnd(); 1042 int start = mTokenizer.findTokenStart(editable, end); 1043 if (shouldCreateChip(start, end)) { 1044 commitChip(start, end, editable); 1045 } 1046 setSelection(getText().length()); 1047 } 1048 1049 private boolean commitChip(int start, int end, Editable editable) { 1050 ListAdapter adapter = getAdapter(); 1051 if (adapter != null && adapter.getCount() > 0 && enoughToFilter() 1052 && end == getSelectionEnd()) { 1053 // choose the first entry. 1054 submitItemAtPosition(0); 1055 dismissDropDown(); 1056 return true; 1057 } else { 1058 int tokenEnd = mTokenizer.findTokenEnd(editable, start); 1059 if (editable.length() > tokenEnd + 1) { 1060 char charAt = editable.charAt(tokenEnd + 1); 1061 if (charAt == COMMIT_CHAR_COMMA || charAt == COMMIT_CHAR_SEMICOLON) { 1062 tokenEnd++; 1063 } 1064 } 1065 String text = editable.toString().substring(start, tokenEnd).trim(); 1066 clearComposingText(); 1067 if (text != null && text.length() > 0 && !text.equals(" ")) { 1068 RecipientEntry entry = createTokenizedEntry(text); 1069 if (entry != null) { 1070 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1071 CharSequence chipText = createChip(entry, false); 1072 if (chipText != null && start > -1 && end > -1) { 1073 editable.replace(start, end, chipText); 1074 } 1075 } 1076 // Only dismiss the dropdown if it is related to the text we 1077 // just committed. 1078 // For paste, it may not be as there are possibly multiple 1079 // tokens being added. 1080 if (end == getSelectionEnd()) { 1081 dismissDropDown(); 1082 } 1083 sanitizeBetween(); 1084 return true; 1085 } 1086 } 1087 return false; 1088 } 1089 1090 // Visible for testing. 1091 /* package */ void sanitizeBetween() { 1092 // Don't sanitize while we are waiting for content to chipify. 1093 if (mPendingChipsCount > 0) { 1094 return; 1095 } 1096 // Find the last chip. 1097 RecipientChip[] recips = getSortedRecipients(); 1098 if (recips != null && recips.length > 0) { 1099 RecipientChip last = recips[recips.length - 1]; 1100 RecipientChip beforeLast = null; 1101 if (recips.length > 1) { 1102 beforeLast = recips[recips.length - 2]; 1103 } 1104 int startLooking = 0; 1105 int end = getSpannable().getSpanStart(last); 1106 if (beforeLast != null) { 1107 startLooking = getSpannable().getSpanEnd(beforeLast); 1108 Editable text = getText(); 1109 if (startLooking == -1 || startLooking > text.length() - 1) { 1110 // There is nothing after this chip. 1111 return; 1112 } 1113 if (text.charAt(startLooking) == ' ') { 1114 startLooking++; 1115 } 1116 } 1117 if (startLooking >= 0 && end >= 0 && startLooking < end) { 1118 getText().delete(startLooking, end); 1119 } 1120 } 1121 } 1122 1123 private boolean shouldCreateChip(int start, int end) { 1124 return !mNoChips && hasFocus() && enoughToFilter() && !alreadyHasChip(start, end); 1125 } 1126 1127 private boolean alreadyHasChip(int start, int end) { 1128 if (mNoChips) { 1129 return true; 1130 } 1131 RecipientChip[] chips = getSpannable().getSpans(start, end, RecipientChip.class); 1132 if ((chips == null || chips.length == 0)) { 1133 return false; 1134 } 1135 return true; 1136 } 1137 1138 private void handleEdit(int start, int end) { 1139 if (start == -1 || end == -1) { 1140 // This chip no longer exists in the field. 1141 dismissDropDown(); 1142 return; 1143 } 1144 // This is in the middle of a chip, so select out the whole chip 1145 // and commit it. 1146 Editable editable = getText(); 1147 setSelection(end); 1148 String text = getText().toString().substring(start, end); 1149 if (!TextUtils.isEmpty(text)) { 1150 RecipientEntry entry = RecipientEntry.constructFakeEntry(text); 1151 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1152 CharSequence chipText = createChip(entry, false); 1153 int selEnd = getSelectionEnd(); 1154 if (chipText != null && start > -1 && selEnd > -1) { 1155 editable.replace(start, selEnd, chipText); 1156 } 1157 } 1158 dismissDropDown(); 1159 } 1160 1161 /** 1162 * If there is a selected chip, delegate the key events 1163 * to the selected chip. 1164 */ 1165 @Override 1166 public boolean onKeyDown(int keyCode, KeyEvent event) { 1167 if (mSelectedChip != null && keyCode == KeyEvent.KEYCODE_DEL) { 1168 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1169 mAlternatesPopup.dismiss(); 1170 } 1171 removeChip(mSelectedChip); 1172 } 1173 1174 if (keyCode == KeyEvent.KEYCODE_ENTER && event.hasNoModifiers()) { 1175 return true; 1176 } 1177 1178 return super.onKeyDown(keyCode, event); 1179 } 1180 1181 // Visible for testing. 1182 /* package */ Spannable getSpannable() { 1183 return getText(); 1184 } 1185 1186 private int getChipStart(RecipientChip chip) { 1187 return getSpannable().getSpanStart(chip); 1188 } 1189 1190 private int getChipEnd(RecipientChip chip) { 1191 return getSpannable().getSpanEnd(chip); 1192 } 1193 1194 /** 1195 * Instead of filtering on the entire contents of the edit box, 1196 * this subclass method filters on the range from 1197 * {@link Tokenizer#findTokenStart} to {@link #getSelectionEnd} 1198 * if the length of that range meets or exceeds {@link #getThreshold} 1199 * and makes sure that the range is not already a Chip. 1200 */ 1201 @Override 1202 protected void performFiltering(CharSequence text, int keyCode) { 1203 if (enoughToFilter() && !isCompletedToken(text)) { 1204 int end = getSelectionEnd(); 1205 int start = mTokenizer.findTokenStart(text, end); 1206 // If this is a RecipientChip, don't filter 1207 // on its contents. 1208 Spannable span = getSpannable(); 1209 RecipientChip[] chips = span.getSpans(start, end, RecipientChip.class); 1210 if (chips != null && chips.length > 0) { 1211 return; 1212 } 1213 } 1214 super.performFiltering(text, keyCode); 1215 } 1216 1217 // Visible for testing. 1218 /*package*/ boolean isCompletedToken(CharSequence text) { 1219 if (TextUtils.isEmpty(text)) { 1220 return false; 1221 } 1222 // Check to see if this is a completed token before filtering. 1223 int end = text.length(); 1224 int start = mTokenizer.findTokenStart(text, end); 1225 String token = text.toString().substring(start, end).trim(); 1226 if (!TextUtils.isEmpty(token)) { 1227 char atEnd = token.charAt(token.length() - 1); 1228 return atEnd == COMMIT_CHAR_COMMA || atEnd == COMMIT_CHAR_SEMICOLON; 1229 } 1230 return false; 1231 } 1232 1233 private void clearSelectedChip() { 1234 if (mSelectedChip != null) { 1235 unselectChip(mSelectedChip); 1236 mSelectedChip = null; 1237 } 1238 setCursorVisible(true); 1239 } 1240 1241 /** 1242 * Monitor touch events in the RecipientEditTextView. 1243 * If the view does not have focus, any tap on the view 1244 * will just focus the view. If the view has focus, determine 1245 * if the touch target is a recipient chip. If it is and the chip 1246 * is not selected, select it and clear any other selected chips. 1247 * If it isn't, then select that chip. 1248 */ 1249 @Override 1250 public boolean onTouchEvent(MotionEvent event) { 1251 if (!isFocused()) { 1252 // Ignore any chip taps until this view is focused. 1253 return super.onTouchEvent(event); 1254 } 1255 boolean handled = super.onTouchEvent(event); 1256 int action = event.getAction(); 1257 boolean chipWasSelected = false; 1258 if (mSelectedChip == null) { 1259 mGestureDetector.onTouchEvent(event); 1260 } 1261 if (mCopyAddress == null && action == MotionEvent.ACTION_UP) { 1262 float x = event.getX(); 1263 float y = event.getY(); 1264 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 1265 RecipientChip currentChip = findChip(offset); 1266 if (currentChip != null) { 1267 if (action == MotionEvent.ACTION_UP) { 1268 if (mSelectedChip != null && mSelectedChip != currentChip) { 1269 clearSelectedChip(); 1270 mSelectedChip = selectChip(currentChip); 1271 } else if (mSelectedChip == null) { 1272 setSelection(getText().length()); 1273 commitDefault(); 1274 mSelectedChip = selectChip(currentChip); 1275 } else { 1276 onClick(mSelectedChip, offset, x, y); 1277 } 1278 } 1279 chipWasSelected = true; 1280 handled = true; 1281 } else if (mSelectedChip != null 1282 && mSelectedChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1283 chipWasSelected = true; 1284 } 1285 } 1286 if (action == MotionEvent.ACTION_UP && !chipWasSelected) { 1287 clearSelectedChip(); 1288 } 1289 return handled; 1290 } 1291 1292 private void scrollLineIntoView(int line) { 1293 if (mScrollView != null) { 1294 mScrollView.scrollBy(0, calculateOffsetFromBottom(line)); 1295 } 1296 } 1297 1298 private void showAlternates(RecipientChip currentChip, ListPopupWindow alternatesPopup, 1299 int width, Context context) { 1300 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1301 int bottom = calculateOffsetFromBottom(line); 1302 // Align the alternates popup with the left side of the View, 1303 // regardless of the position of the chip tapped. 1304 alternatesPopup.setWidth(width); 1305 setEnabled(false); 1306 alternatesPopup.setAnchorView(this); 1307 alternatesPopup.setVerticalOffset(bottom); 1308 alternatesPopup.setAdapter(createAlternatesAdapter(currentChip)); 1309 alternatesPopup.setOnItemClickListener(mAlternatesListener); 1310 // Clear the checked item. 1311 mCheckedItem = -1; 1312 alternatesPopup.show(); 1313 ListView listView = alternatesPopup.getListView(); 1314 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1315 // Checked item would be -1 if the adapter has not 1316 // loaded the view that should be checked yet. The 1317 // variable will be set correctly when onCheckedItemChanged 1318 // is called in a separate thread. 1319 if (mCheckedItem != -1) { 1320 listView.setItemChecked(mCheckedItem, true); 1321 mCheckedItem = -1; 1322 } 1323 } 1324 1325 // Dismiss listener for alterns and single address popup. 1326 @Override 1327 public void onDismiss() { 1328 setEnabled(true); 1329 } 1330 1331 private ListAdapter createAlternatesAdapter(RecipientChip chip) { 1332 return new RecipientAlternatesAdapter(getContext(), chip.getContactId(), chip.getDataId(), 1333 mAlternatesLayout, ((BaseRecipientAdapter)getAdapter()).getQueryType(), this); 1334 } 1335 1336 private ListAdapter createSingleAddressAdapter(RecipientChip currentChip) { 1337 return new SingleRecipientArrayAdapter(getContext(), mAlternatesLayout, currentChip 1338 .getEntry()); 1339 } 1340 1341 @Override 1342 public void onCheckedItemChanged(int position) { 1343 ListView listView = mAlternatesPopup.getListView(); 1344 if (listView != null && listView.getCheckedItemCount() == 0) { 1345 listView.setItemChecked(position, true); 1346 } 1347 mCheckedItem = position; 1348 } 1349 1350 // TODO: This algorithm will need a lot of tweaking after more people have used 1351 // the chips ui. This attempts to be "forgiving" to fat finger touches by favoring 1352 // what comes before the finger. 1353 private int putOffsetInRange(int o) { 1354 int offset = o; 1355 Editable text = getText(); 1356 int length = text.length(); 1357 // Remove whitespace from end to find "real end" 1358 int realLength = length; 1359 for (int i = length - 1; i >= 0; i--) { 1360 if (text.charAt(i) == ' ') { 1361 realLength--; 1362 } else { 1363 break; 1364 } 1365 } 1366 1367 // If the offset is beyond or at the end of the text, 1368 // leave it alone. 1369 if (offset >= realLength) { 1370 return offset; 1371 } 1372 Editable editable = getText(); 1373 while (offset >= 0 && findText(editable, offset) == -1 && findChip(offset) == null) { 1374 // Keep walking backward! 1375 offset--; 1376 } 1377 return offset; 1378 } 1379 1380 private int findText(Editable text, int offset) { 1381 if (text.charAt(offset) != ' ') { 1382 return offset; 1383 } 1384 return -1; 1385 } 1386 1387 private RecipientChip findChip(int offset) { 1388 RecipientChip[] chips = getSpannable().getSpans(0, getText().length(), RecipientChip.class); 1389 // Find the chip that contains this offset. 1390 for (int i = 0; i < chips.length; i++) { 1391 RecipientChip chip = chips[i]; 1392 int start = getChipStart(chip); 1393 int end = getChipEnd(chip); 1394 if (offset >= start && offset <= end) { 1395 return chip; 1396 } 1397 } 1398 return null; 1399 } 1400 1401 // Visible for testing. 1402 // Use this method to generate text to add to the list of addresses. 1403 /* package */String createAddressText(RecipientEntry entry) { 1404 String display = entry.getDisplayName(); 1405 String address = entry.getDestination(); 1406 if (TextUtils.isEmpty(display) || TextUtils.equals(display, address)) { 1407 display = null; 1408 } 1409 String trimmedDisplayText; 1410 if (((BaseRecipientAdapter)getAdapter()).getQueryType() == 1411 BaseRecipientAdapter.QUERY_TYPE_PHONE && isPhoneNumber(address)) { 1412 trimmedDisplayText = address.trim(); 1413 } else { 1414 if (address != null) { 1415 // Tokenize out the address in case the address already 1416 // contained the username as well. 1417 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(address); 1418 if (tokenized != null && tokenized.length > 0) { 1419 address = tokenized[0].getAddress(); 1420 } 1421 } 1422 Rfc822Token token = new Rfc822Token(display, address, null); 1423 trimmedDisplayText = token.toString().trim(); 1424 } 1425 int index = trimmedDisplayText.indexOf(","); 1426 return mTokenizer != null && !TextUtils.isEmpty(trimmedDisplayText) 1427 && index < trimmedDisplayText.length() - 1 ? (String) mTokenizer 1428 .terminateToken(trimmedDisplayText) : trimmedDisplayText; 1429 } 1430 1431 // Visible for testing. 1432 // Use this method to generate text to display in a chip. 1433 /*package*/ String createChipDisplayText(RecipientEntry entry) { 1434 String display = entry.getDisplayName(); 1435 String address = entry.getDestination(); 1436 if (TextUtils.isEmpty(display) || TextUtils.equals(display, address)) { 1437 display = null; 1438 } 1439 if (address != null && !(((BaseRecipientAdapter)getAdapter()).getQueryType() == 1440 BaseRecipientAdapter.QUERY_TYPE_PHONE && isPhoneNumber(address))) { 1441 // Tokenize out the address in case the address already 1442 // contained the username as well. 1443 Rfc822Token[] tokenized = Rfc822Tokenizer.tokenize(address); 1444 if (tokenized != null && tokenized.length > 0) { 1445 address = tokenized[0].getAddress(); 1446 } 1447 } 1448 if (!TextUtils.isEmpty(display)) { 1449 return display; 1450 } else if (!TextUtils.isEmpty(address)){ 1451 return address; 1452 } else { 1453 return new Rfc822Token(display, address, null).toString(); 1454 } 1455 } 1456 1457 private CharSequence createChip(RecipientEntry entry, boolean pressed) { 1458 String displayText = createAddressText(entry); 1459 if (TextUtils.isEmpty(displayText)) { 1460 return null; 1461 } 1462 SpannableString chipText = null; 1463 // Always leave a blank space at the end of a chip. 1464 int end = getSelectionEnd(); 1465 int start = mTokenizer.findTokenStart(getText(), end); 1466 int textLength = displayText.length()-1; 1467 chipText = new SpannableString(displayText); 1468 if (!mNoChips) { 1469 try { 1470 RecipientChip chip = constructChipSpan(entry, start, pressed); 1471 chipText.setSpan(chip, 0, textLength, 1472 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1473 chip.setOriginalText(chipText.toString()); 1474 } catch (NullPointerException e) { 1475 Log.e(TAG, e.getMessage(), e); 1476 return null; 1477 } 1478 } 1479 return chipText; 1480 } 1481 1482 /** 1483 * When an item in the suggestions list has been clicked, create a chip from the 1484 * contact information of the selected item. 1485 */ 1486 @Override 1487 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1488 submitItemAtPosition(position); 1489 } 1490 1491 private void submitItemAtPosition(int position) { 1492 RecipientEntry entry = createValidatedEntry( 1493 (RecipientEntry)getAdapter().getItem(position)); 1494 if (entry == null) { 1495 return; 1496 } 1497 clearComposingText(); 1498 1499 int end = getSelectionEnd(); 1500 int start = mTokenizer.findTokenStart(getText(), end); 1501 1502 Editable editable = getText(); 1503 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1504 CharSequence chip = createChip(entry, false); 1505 if (chip != null && start >= 0 && end >= 0) { 1506 editable.replace(start, end, chip); 1507 } 1508 sanitizeBetween(); 1509 } 1510 1511 private RecipientEntry createValidatedEntry(RecipientEntry item) { 1512 if (item == null) { 1513 return null; 1514 } 1515 final RecipientEntry entry; 1516 // If the display name and the address are the same, or if this is a 1517 // valid contact, but the destination is invalid, then make this a fake 1518 // recipient that is editable. 1519 String destination = item.getDestination(); 1520 if (RecipientEntry.isCreatedRecipient(item.getContactId()) 1521 && (TextUtils.isEmpty(item.getDisplayName()) 1522 || TextUtils.equals(item.getDisplayName(), destination) 1523 || (mValidator != null && !mValidator.isValid(destination)))) { 1524 entry = RecipientEntry.constructFakeEntry(destination); 1525 } else { 1526 entry = item; 1527 } 1528 return entry; 1529 } 1530 1531 /** Returns a collection of contact Id for each chip inside this View. */ 1532 /* package */ Collection<Long> getContactIds() { 1533 final Set<Long> result = new HashSet<Long>(); 1534 RecipientChip[] chips = getSortedRecipients(); 1535 if (chips != null) { 1536 for (RecipientChip chip : chips) { 1537 result.add(chip.getContactId()); 1538 } 1539 } 1540 return result; 1541 } 1542 1543 1544 /** Returns a collection of data Id for each chip inside this View. May be null. */ 1545 /* package */ Collection<Long> getDataIds() { 1546 final Set<Long> result = new HashSet<Long>(); 1547 RecipientChip [] chips = getSortedRecipients(); 1548 if (chips != null) { 1549 for (RecipientChip chip : chips) { 1550 result.add(chip.getDataId()); 1551 } 1552 } 1553 return result; 1554 } 1555 1556 // Visible for testing. 1557 /* package */RecipientChip[] getSortedRecipients() { 1558 RecipientChip[] recips = getSpannable() 1559 .getSpans(0, getText().length(), RecipientChip.class); 1560 ArrayList<RecipientChip> recipientsList = new ArrayList<RecipientChip>(Arrays 1561 .asList(recips)); 1562 final Spannable spannable = getSpannable(); 1563 Collections.sort(recipientsList, new Comparator<RecipientChip>() { 1564 1565 @Override 1566 public int compare(RecipientChip first, RecipientChip second) { 1567 int firstStart = spannable.getSpanStart(first); 1568 int secondStart = spannable.getSpanStart(second); 1569 if (firstStart < secondStart) { 1570 return -1; 1571 } else if (firstStart > secondStart) { 1572 return 1; 1573 } else { 1574 return 0; 1575 } 1576 } 1577 }); 1578 return recipientsList.toArray(new RecipientChip[recipientsList.size()]); 1579 } 1580 1581 @Override 1582 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 1583 return false; 1584 } 1585 1586 @Override 1587 public void onDestroyActionMode(ActionMode mode) { 1588 } 1589 1590 @Override 1591 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 1592 return false; 1593 } 1594 1595 /** 1596 * No chips are selectable. 1597 */ 1598 @Override 1599 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 1600 return false; 1601 } 1602 1603 // Visible for testing. 1604 /* package */ImageSpan getMoreChip() { 1605 MoreImageSpan[] moreSpans = getSpannable().getSpans(0, getText().length(), 1606 MoreImageSpan.class); 1607 return moreSpans != null && moreSpans.length > 0 ? moreSpans[0] : null; 1608 } 1609 1610 private MoreImageSpan createMoreSpan(int count) { 1611 String moreText = String.format(mMoreItem.getText().toString(), count); 1612 TextPaint morePaint = new TextPaint(getPaint()); 1613 morePaint.setTextSize(mMoreItem.getTextSize()); 1614 morePaint.setColor(mMoreItem.getCurrentTextColor()); 1615 int width = (int)morePaint.measureText(moreText) + mMoreItem.getPaddingLeft() 1616 + mMoreItem.getPaddingRight(); 1617 int height = getLineHeight(); 1618 Bitmap drawable = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 1619 Canvas canvas = new Canvas(drawable); 1620 int adjustedHeight = height; 1621 Layout layout = getLayout(); 1622 if (layout != null) { 1623 adjustedHeight -= layout.getLineDescent(0); 1624 } 1625 canvas.drawText(moreText, 0, moreText.length(), 0, adjustedHeight, morePaint); 1626 1627 Drawable result = new BitmapDrawable(getResources(), drawable); 1628 result.setBounds(0, 0, width, height); 1629 return new MoreImageSpan(result); 1630 } 1631 1632 // Visible for testing. 1633 /*package*/ void createMoreChipPlainText() { 1634 // Take the first <= CHIP_LIMIT addresses and get to the end of the second one. 1635 Editable text = getText(); 1636 int start = 0; 1637 int end = start; 1638 for (int i = 0; i < CHIP_LIMIT; i++) { 1639 end = movePastTerminators(mTokenizer.findTokenEnd(text, start)); 1640 start = end; // move to the next token and get its end. 1641 } 1642 // Now, count total addresses. 1643 start = 0; 1644 int tokenCount = countTokens(text); 1645 MoreImageSpan moreSpan = createMoreSpan(tokenCount - CHIP_LIMIT); 1646 SpannableString chipText = new SpannableString(text.subSequence(end, text.length())); 1647 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1648 text.replace(end, text.length(), chipText); 1649 mMoreChip = moreSpan; 1650 } 1651 1652 // Visible for testing. 1653 /* package */int countTokens(Editable text) { 1654 int tokenCount = 0; 1655 int start = 0; 1656 while (start < text.length()) { 1657 start = movePastTerminators(mTokenizer.findTokenEnd(text, start)); 1658 tokenCount++; 1659 if (start >= text.length()) { 1660 break; 1661 } 1662 } 1663 return tokenCount; 1664 } 1665 1666 /** 1667 * Create the more chip. The more chip is text that replaces any chips that 1668 * do not fit in the pre-defined available space when the 1669 * RecipientEditTextView loses focus. 1670 */ 1671 // Visible for testing. 1672 /* package */ void createMoreChip() { 1673 if (mNoChips) { 1674 createMoreChipPlainText(); 1675 return; 1676 } 1677 1678 if (!mShouldShrink) { 1679 return; 1680 } 1681 1682 ImageSpan[] tempMore = getSpannable().getSpans(0, getText().length(), MoreImageSpan.class); 1683 if (tempMore.length > 0) { 1684 getSpannable().removeSpan(tempMore[0]); 1685 } 1686 RecipientChip[] recipients = getSortedRecipients(); 1687 1688 if (recipients == null || recipients.length <= CHIP_LIMIT) { 1689 mMoreChip = null; 1690 return; 1691 } 1692 Spannable spannable = getSpannable(); 1693 int numRecipients = recipients.length; 1694 int overage = numRecipients - CHIP_LIMIT; 1695 MoreImageSpan moreSpan = createMoreSpan(overage); 1696 mRemovedSpans = new ArrayList<RecipientChip>(); 1697 int totalReplaceStart = 0; 1698 int totalReplaceEnd = 0; 1699 Editable text = getText(); 1700 for (int i = numRecipients - overage; i < recipients.length; i++) { 1701 mRemovedSpans.add(recipients[i]); 1702 if (i == numRecipients - overage) { 1703 totalReplaceStart = spannable.getSpanStart(recipients[i]); 1704 } 1705 if (i == recipients.length - 1) { 1706 totalReplaceEnd = spannable.getSpanEnd(recipients[i]); 1707 } 1708 if (mTemporaryRecipients == null || !mTemporaryRecipients.contains(recipients[i])) { 1709 int spanStart = spannable.getSpanStart(recipients[i]); 1710 int spanEnd = spannable.getSpanEnd(recipients[i]); 1711 recipients[i].setOriginalText(text.toString().substring(spanStart, spanEnd)); 1712 } 1713 spannable.removeSpan(recipients[i]); 1714 } 1715 if (totalReplaceEnd < text.length()) { 1716 totalReplaceEnd = text.length(); 1717 } 1718 int end = Math.max(totalReplaceStart, totalReplaceEnd); 1719 int start = Math.min(totalReplaceStart, totalReplaceEnd); 1720 SpannableString chipText = new SpannableString(text.subSequence(start, end)); 1721 chipText.setSpan(moreSpan, 0, chipText.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1722 text.replace(start, end, chipText); 1723 mMoreChip = moreSpan; 1724 } 1725 1726 /** 1727 * Replace the more chip, if it exists, with all of the recipient chips it had 1728 * replaced when the RecipientEditTextView gains focus. 1729 */ 1730 // Visible for testing. 1731 /*package*/ void removeMoreChip() { 1732 if (mMoreChip != null) { 1733 Spannable span = getSpannable(); 1734 span.removeSpan(mMoreChip); 1735 mMoreChip = null; 1736 // Re-add the spans that were removed. 1737 if (mRemovedSpans != null && mRemovedSpans.size() > 0) { 1738 // Recreate each removed span. 1739 RecipientChip[] recipients = getSortedRecipients(); 1740 // Start the search for tokens after the last currently visible 1741 // chip. 1742 if (recipients == null || recipients.length == 0) { 1743 return; 1744 } 1745 int end = span.getSpanEnd(recipients[recipients.length - 1]); 1746 Editable editable = getText(); 1747 for (RecipientChip chip : mRemovedSpans) { 1748 int chipStart; 1749 int chipEnd; 1750 String token; 1751 // Need to find the location of the chip, again. 1752 token = (String) chip.getOriginalText(); 1753 // As we find the matching recipient for the remove spans, 1754 // reduce the size of the string we need to search. 1755 // That way, if there are duplicates, we always find the correct 1756 // recipient. 1757 chipStart = editable.toString().indexOf(token, end); 1758 end = chipEnd = Math.min(editable.length(), chipStart + token.length()); 1759 // Only set the span if we found a matching token. 1760 if (chipStart != -1) { 1761 editable.setSpan(chip, chipStart, chipEnd, 1762 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 1763 } 1764 } 1765 mRemovedSpans.clear(); 1766 } 1767 } 1768 } 1769 1770 /** 1771 * Show specified chip as selected. If the RecipientChip is just an email address, 1772 * selecting the chip will take the contents of the chip and place it at 1773 * the end of the RecipientEditTextView for inline editing. If the 1774 * RecipientChip is a complete contact, then selecting the chip 1775 * will change the background color of the chip, show the delete icon, 1776 * and a popup window with the address in use highlighted and any other 1777 * alternate addresses for the contact. 1778 * @param currentChip Chip to select. 1779 * @return A RecipientChip in the selected state or null if the chip 1780 * just contained an email address. 1781 */ 1782 private RecipientChip selectChip(RecipientChip currentChip) { 1783 if (currentChip.getContactId() == RecipientEntry.INVALID_CONTACT) { 1784 CharSequence text = currentChip.getValue(); 1785 Editable editable = getText(); 1786 removeChip(currentChip); 1787 editable.append(text); 1788 setCursorVisible(true); 1789 setSelection(editable.length()); 1790 return new RecipientChip(null, RecipientEntry.constructFakeEntry((String) text), -1); 1791 } else if (currentChip.getContactId() == RecipientEntry.GENERATED_CONTACT) { 1792 int start = getChipStart(currentChip); 1793 int end = getChipEnd(currentChip); 1794 getSpannable().removeSpan(currentChip); 1795 RecipientChip newChip; 1796 try { 1797 if (mNoChips) { 1798 return null; 1799 } 1800 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1801 } catch (NullPointerException e) { 1802 Log.e(TAG, e.getMessage(), e); 1803 return null; 1804 } 1805 Editable editable = getText(); 1806 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1807 if (start == -1 || end == -1) { 1808 Log.d(TAG, "The chip being selected no longer exists but should."); 1809 } else { 1810 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1811 } 1812 newChip.setSelected(true); 1813 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1814 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1815 } 1816 showAddress(newChip, mAddressPopup, getWidth(), getContext()); 1817 setCursorVisible(false); 1818 return newChip; 1819 } else { 1820 int start = getChipStart(currentChip); 1821 int end = getChipEnd(currentChip); 1822 getSpannable().removeSpan(currentChip); 1823 RecipientChip newChip; 1824 try { 1825 newChip = constructChipSpan(currentChip.getEntry(), start, true); 1826 } catch (NullPointerException e) { 1827 Log.e(TAG, e.getMessage(), e); 1828 return null; 1829 } 1830 Editable editable = getText(); 1831 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1832 if (start == -1 || end == -1) { 1833 Log.d(TAG, "The chip being selected no longer exists but should."); 1834 } else { 1835 editable.setSpan(newChip, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1836 } 1837 newChip.setSelected(true); 1838 if (newChip.getEntry().getContactId() == RecipientEntry.INVALID_CONTACT) { 1839 scrollLineIntoView(getLayout().getLineForOffset(getChipStart(newChip))); 1840 } 1841 showAlternates(newChip, mAlternatesPopup, getWidth(), getContext()); 1842 setCursorVisible(false); 1843 return newChip; 1844 } 1845 } 1846 1847 1848 private void showAddress(final RecipientChip currentChip, final ListPopupWindow popup, 1849 int width, Context context) { 1850 int line = getLayout().getLineForOffset(getChipStart(currentChip)); 1851 int bottom = calculateOffsetFromBottom(line); 1852 // Align the alternates popup with the left side of the View, 1853 // regardless of the position of the chip tapped. 1854 setEnabled(false); 1855 popup.setWidth(width); 1856 popup.setAnchorView(this); 1857 popup.setVerticalOffset(bottom); 1858 popup.setAdapter(createSingleAddressAdapter(currentChip)); 1859 popup.setOnItemClickListener(new OnItemClickListener() { 1860 @Override 1861 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 1862 unselectChip(currentChip); 1863 popup.dismiss(); 1864 } 1865 }); 1866 popup.show(); 1867 ListView listView = popup.getListView(); 1868 listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 1869 listView.setItemChecked(0, true); 1870 } 1871 1872 /** 1873 * Remove selection from this chip. Unselecting a RecipientChip will render 1874 * the chip without a delete icon and with an unfocused background. This is 1875 * called when the RecipientChip no longer has focus. 1876 */ 1877 private void unselectChip(RecipientChip chip) { 1878 int start = getChipStart(chip); 1879 int end = getChipEnd(chip); 1880 Editable editable = getText(); 1881 mSelectedChip = null; 1882 if (start == -1 || end == -1) { 1883 Log.w(TAG, "The chip doesn't exist or may be a chip a user was editing"); 1884 setSelection(editable.length()); 1885 commitDefault(); 1886 } else { 1887 getSpannable().removeSpan(chip); 1888 QwertyKeyListener.markAsReplaced(editable, start, end, ""); 1889 editable.removeSpan(chip); 1890 try { 1891 if (!mNoChips) { 1892 editable.setSpan(constructChipSpan(chip.getEntry(), start, false), start, end, 1893 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 1894 } 1895 } catch (NullPointerException e) { 1896 Log.e(TAG, e.getMessage(), e); 1897 } 1898 } 1899 setCursorVisible(true); 1900 setSelection(editable.length()); 1901 if (mAlternatesPopup != null && mAlternatesPopup.isShowing()) { 1902 mAlternatesPopup.dismiss(); 1903 } 1904 } 1905 1906 /** 1907 * Return whether a touch event was inside the delete target of 1908 * a selected chip. It is in the delete target if: 1909 * 1) the x and y points of the event are within the 1910 * delete assset. 1911 * 2) the point tapped would have caused a cursor to appear 1912 * right after the selected chip. 1913 * @return boolean 1914 */ 1915 private boolean isInDelete(RecipientChip chip, int offset, float x, float y) { 1916 // Figure out the bounds of this chip and whether or not 1917 // the user clicked in the X portion. 1918 return chip.isSelected() && offset == getChipEnd(chip); 1919 } 1920 1921 /** 1922 * Remove the chip and any text associated with it from the RecipientEditTextView. 1923 */ 1924 // Visible for testing. 1925 /*pacakge*/ void removeChip(RecipientChip chip) { 1926 Spannable spannable = getSpannable(); 1927 int spanStart = spannable.getSpanStart(chip); 1928 int spanEnd = spannable.getSpanEnd(chip); 1929 Editable text = getText(); 1930 int toDelete = spanEnd; 1931 boolean wasSelected = chip == mSelectedChip; 1932 // Clear that there is a selected chip before updating any text. 1933 if (wasSelected) { 1934 mSelectedChip = null; 1935 } 1936 // Always remove trailing spaces when removing a chip. 1937 while (toDelete >= 0 && toDelete < text.length() && text.charAt(toDelete) == ' ') { 1938 toDelete++; 1939 } 1940 spannable.removeSpan(chip); 1941 if (spanStart >= 0 && toDelete > 0) { 1942 text.delete(spanStart, toDelete); 1943 } 1944 if (wasSelected) { 1945 clearSelectedChip(); 1946 } 1947 } 1948 1949 /** 1950 * Replace this currently selected chip with a new chip 1951 * that uses the contact data provided. 1952 */ 1953 // Visible for testing. 1954 /*package*/ void replaceChip(RecipientChip chip, RecipientEntry entry) { 1955 boolean wasSelected = chip == mSelectedChip; 1956 if (wasSelected) { 1957 mSelectedChip = null; 1958 } 1959 int start = getChipStart(chip); 1960 int end = getChipEnd(chip); 1961 getSpannable().removeSpan(chip); 1962 Editable editable = getText(); 1963 CharSequence chipText = createChip(entry, false); 1964 if (chipText != null) { 1965 if (start == -1 || end == -1) { 1966 Log.e(TAG, "The chip to replace does not exist but should."); 1967 editable.insert(0, chipText); 1968 } else { 1969 if (!TextUtils.isEmpty(chipText)) { 1970 // There may be a space to replace with this chip's new 1971 // associated 1972 // space. Check for it 1973 int toReplace = end; 1974 while (toReplace >= 0 && toReplace < editable.length() 1975 && editable.charAt(toReplace) == ' ') { 1976 toReplace++; 1977 } 1978 editable.replace(start, toReplace, chipText); 1979 } 1980 } 1981 } 1982 setCursorVisible(true); 1983 if (wasSelected) { 1984 clearSelectedChip(); 1985 } 1986 } 1987 1988 /** 1989 * Handle click events for a chip. When a selected chip receives a click 1990 * event, see if that event was in the delete icon. If so, delete it. 1991 * Otherwise, unselect the chip. 1992 */ 1993 public void onClick(RecipientChip chip, int offset, float x, float y) { 1994 if (chip.isSelected()) { 1995 if (isInDelete(chip, offset, x, y)) { 1996 removeChip(chip); 1997 } else { 1998 clearSelectedChip(); 1999 } 2000 } 2001 } 2002 2003 private boolean chipsPending() { 2004 return mPendingChipsCount > 0 || (mRemovedSpans != null && mRemovedSpans.size() > 0); 2005 } 2006 2007 @Override 2008 public void removeTextChangedListener(TextWatcher watcher) { 2009 mTextWatcher = null; 2010 super.removeTextChangedListener(watcher); 2011 } 2012 2013 private class RecipientTextWatcher implements TextWatcher { 2014 2015 @Override 2016 public void afterTextChanged(Editable s) { 2017 // If the text has been set to null or empty, make sure we remove 2018 // all the spans we applied. 2019 if (TextUtils.isEmpty(s)) { 2020 // Remove all the chips spans. 2021 Spannable spannable = getSpannable(); 2022 RecipientChip[] chips = spannable.getSpans(0, getText().length(), 2023 RecipientChip.class); 2024 for (RecipientChip chip : chips) { 2025 spannable.removeSpan(chip); 2026 } 2027 if (mMoreChip != null) { 2028 spannable.removeSpan(mMoreChip); 2029 } 2030 return; 2031 } 2032 // Get whether there are any recipients pending addition to the 2033 // view. If there are, don't do anything in the text watcher. 2034 if (chipsPending()) { 2035 return; 2036 } 2037 // If the user is editing a chip, don't clear it. 2038 if (mSelectedChip != null 2039 && mSelectedChip.getContactId() != RecipientEntry.INVALID_CONTACT) { 2040 setCursorVisible(true); 2041 setSelection(getText().length()); 2042 clearSelectedChip(); 2043 } 2044 int length = s.length(); 2045 // Make sure there is content there to parse and that it is 2046 // not just the commit character. 2047 if (length > 1) { 2048 char last; 2049 int end = getSelectionEnd() == 0 ? 0 : getSelectionEnd() - 1; 2050 int len = length() - 1; 2051 if (end != len) { 2052 last = s.charAt(end); 2053 } else { 2054 last = s.charAt(len); 2055 } 2056 if (last == COMMIT_CHAR_SEMICOLON || last == COMMIT_CHAR_COMMA) { 2057 commitByCharacter(); 2058 } else if (last == COMMIT_CHAR_SPACE) { 2059 // Check if this is a valid email address. If it is, 2060 // commit it. 2061 String text = getText().toString(); 2062 int tokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 2063 String sub = text.substring(tokenStart, mTokenizer.findTokenEnd(text, 2064 tokenStart)); 2065 if (!TextUtils.isEmpty(sub) && mValidator != null && mValidator.isValid(sub)) { 2066 commitByCharacter(); 2067 } 2068 } 2069 } 2070 } 2071 2072 @Override 2073 public void onTextChanged(CharSequence s, int start, int before, int count) { 2074 // This is a delete; check to see if the insertion point is on a space 2075 // following a chip. 2076 if (before > count) { 2077 // If the item deleted is a space, and the thing before the 2078 // space is a chip, delete the entire span. 2079 int selStart = getSelectionStart(); 2080 RecipientChip[] repl = getSpannable().getSpans(selStart, selStart, 2081 RecipientChip.class); 2082 if (repl.length > 0) { 2083 // There is a chip there! Just remove it. 2084 Editable editable = getText(); 2085 // Add the separator token. 2086 int tokenStart = mTokenizer.findTokenStart(editable, selStart); 2087 int tokenEnd = mTokenizer.findTokenEnd(editable, tokenStart); 2088 tokenEnd = tokenEnd + 1; 2089 if (tokenEnd > editable.length()) { 2090 tokenEnd = editable.length(); 2091 } 2092 editable.delete(tokenStart, tokenEnd); 2093 getSpannable().removeSpan(repl[0]); 2094 } 2095 } 2096 } 2097 2098 @Override 2099 public void beforeTextChanged(CharSequence s, int start, int count, int after) { 2100 // Do nothing. 2101 } 2102 } 2103 2104 /** 2105 * Handles pasting a {@link ClipData} to this {@link RecipientEditTextView}. 2106 */ 2107 private void handlePasteClip(ClipData clip) { 2108 removeTextChangedListener(mTextWatcher); 2109 2110 if (clip != null && clip.getDescription().hasMimeType(ClipDescription.MIMETYPE_TEXT_PLAIN)){ 2111 for (int i = 0; i < clip.getItemCount(); i++) { 2112 CharSequence paste = clip.getItemAt(i).getText(); 2113 if (paste != null) { 2114 int start = getSelectionStart(); 2115 int end = getSelectionEnd(); 2116 Editable editable = getText(); 2117 if (start >= 0 && end >= 0 && start != end) { 2118 editable.append(paste, start, end); 2119 } else { 2120 editable.insert(end, paste); 2121 } 2122 handlePasteAndReplace(); 2123 } 2124 } 2125 } 2126 2127 mHandler.post(mAddTextWatcher); 2128 } 2129 2130 @Override 2131 public boolean onTextContextMenuItem(int id) { 2132 if (id == android.R.id.paste) { 2133 ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService( 2134 Context.CLIPBOARD_SERVICE); 2135 handlePasteClip(clipboard.getPrimaryClip()); 2136 return true; 2137 } 2138 return super.onTextContextMenuItem(id); 2139 } 2140 2141 private void handlePasteAndReplace() { 2142 ArrayList<RecipientChip> created = handlePaste(); 2143 if (created != null && created.size() > 0) { 2144 // Perform reverse lookups on the pasted contacts. 2145 IndividualReplacementTask replace = new IndividualReplacementTask(); 2146 replace.execute(created); 2147 } 2148 } 2149 2150 // Visible for testing. 2151 /* package */ArrayList<RecipientChip> handlePaste() { 2152 String text = getText().toString(); 2153 int originalTokenStart = mTokenizer.findTokenStart(text, getSelectionEnd()); 2154 String lastAddress = text.substring(originalTokenStart); 2155 int tokenStart = originalTokenStart; 2156 int prevTokenStart = tokenStart; 2157 RecipientChip findChip = null; 2158 ArrayList<RecipientChip> created = new ArrayList<RecipientChip>(); 2159 if (tokenStart != 0) { 2160 // There are things before this! 2161 while (tokenStart != 0 && findChip == null) { 2162 prevTokenStart = tokenStart; 2163 tokenStart = mTokenizer.findTokenStart(text, tokenStart); 2164 findChip = findChip(tokenStart); 2165 } 2166 if (tokenStart != originalTokenStart) { 2167 if (findChip != null) { 2168 tokenStart = prevTokenStart; 2169 } 2170 int tokenEnd; 2171 RecipientChip createdChip; 2172 while (tokenStart < originalTokenStart) { 2173 tokenEnd = movePastTerminators(mTokenizer.findTokenEnd(text, tokenStart)); 2174 commitChip(tokenStart, tokenEnd, getText()); 2175 createdChip = findChip(tokenStart); 2176 // +1 for the space at the end. 2177 tokenStart = getSpannable().getSpanEnd(createdChip) + 1; 2178 created.add(createdChip); 2179 } 2180 } 2181 } 2182 // Take a look at the last token. If the token has been completed with a 2183 // commit character, create a chip. 2184 if (isCompletedToken(lastAddress)) { 2185 Editable editable = getText(); 2186 tokenStart = editable.toString().indexOf(lastAddress, originalTokenStart); 2187 commitChip(tokenStart, editable.length(), editable); 2188 created.add(findChip(tokenStart)); 2189 } 2190 return created; 2191 } 2192 2193 // Visible for testing. 2194 /* package */int movePastTerminators(int tokenEnd) { 2195 if (tokenEnd >= length()) { 2196 return tokenEnd; 2197 } 2198 char atEnd = getText().toString().charAt(tokenEnd); 2199 if (atEnd == COMMIT_CHAR_COMMA || atEnd == COMMIT_CHAR_SEMICOLON) { 2200 tokenEnd++; 2201 } 2202 // This token had not only an end token character, but also a space 2203 // separating it from the next token. 2204 if (tokenEnd < length() && getText().toString().charAt(tokenEnd) == ' ') { 2205 tokenEnd++; 2206 } 2207 return tokenEnd; 2208 } 2209 2210 private class RecipientReplacementTask extends AsyncTask<Void, Void, Void> { 2211 private RecipientChip createFreeChip(RecipientEntry entry) { 2212 try { 2213 if (mNoChips) { 2214 return null; 2215 } 2216 return constructChipSpan(entry, -1, false); 2217 } catch (NullPointerException e) { 2218 Log.e(TAG, e.getMessage(), e); 2219 return null; 2220 } 2221 } 2222 2223 @Override 2224 protected Void doInBackground(Void... params) { 2225 if (mIndividualReplacements != null) { 2226 mIndividualReplacements.cancel(true); 2227 } 2228 // For each chip in the list, look up the matching contact. 2229 // If there is a match, replace that chip with the matching 2230 // chip. 2231 final ArrayList<RecipientChip> originalRecipients = new ArrayList<RecipientChip>(); 2232 RecipientChip[] existingChips = getSortedRecipients(); 2233 for (int i = 0; i < existingChips.length; i++) { 2234 originalRecipients.add(existingChips[i]); 2235 } 2236 if (mRemovedSpans != null) { 2237 originalRecipients.addAll(mRemovedSpans); 2238 } 2239 String[] addresses = new String[originalRecipients.size()]; 2240 RecipientChip chip; 2241 for (int i = 0; i < originalRecipients.size(); i++) { 2242 chip = originalRecipients.get(i); 2243 if (chip != null) { 2244 addresses[i] = createAddressText(chip.getEntry()); 2245 } 2246 } 2247 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 2248 .getMatchingRecipients(getContext(), addresses); 2249 final ArrayList<RecipientChip> replacements = new ArrayList<RecipientChip>(); 2250 for (final RecipientChip temp : originalRecipients) { 2251 RecipientEntry entry = null; 2252 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 2253 && getSpannable().getSpanStart(temp) != -1) { 2254 // Replace this. 2255 entry = createValidatedEntry(entries.get(tokenizeAddress(temp.getEntry() 2256 .getDestination()))); 2257 } 2258 if (entry != null) { 2259 replacements.add(createFreeChip(entry)); 2260 } else { 2261 replacements.add(temp); 2262 } 2263 } 2264 if (replacements != null && replacements.size() > 0) { 2265 mHandler.post(new Runnable() { 2266 @Override 2267 public void run() { 2268 SpannableStringBuilder text = new SpannableStringBuilder(getText() 2269 .toString()); 2270 Editable oldText = getText(); 2271 int start, end; 2272 int i = 0; 2273 for (RecipientChip chip : originalRecipients) { 2274 start = oldText.getSpanStart(chip); 2275 if (start != -1) { 2276 end = oldText.getSpanEnd(chip); 2277 oldText.removeSpan(chip); 2278 // Leave a spot for the space! 2279 RecipientChip replacement = replacements.get(i); 2280 text.setSpan(replacement, start, end, 2281 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 2282 replacement.setOriginalText(text.toString().substring(start, end)); 2283 } 2284 i++; 2285 } 2286 originalRecipients.clear(); 2287 setText(text); 2288 } 2289 }); 2290 } 2291 return null; 2292 } 2293 } 2294 2295 private class IndividualReplacementTask extends AsyncTask<Object, Void, Void> { 2296 @SuppressWarnings("unchecked") 2297 @Override 2298 protected Void doInBackground(Object... params) { 2299 // For each chip in the list, look up the matching contact. 2300 // If there is a match, replace that chip with the matching 2301 // chip. 2302 final ArrayList<RecipientChip> originalRecipients = 2303 (ArrayList<RecipientChip>) params[0]; 2304 String[] addresses = new String[originalRecipients.size()]; 2305 RecipientChip chip; 2306 for (int i = 0; i < originalRecipients.size(); i++) { 2307 chip = originalRecipients.get(i); 2308 if (chip != null) { 2309 addresses[i] = createAddressText(chip.getEntry()); 2310 } 2311 } 2312 HashMap<String, RecipientEntry> entries = RecipientAlternatesAdapter 2313 .getMatchingRecipients(getContext(), addresses); 2314 for (final RecipientChip temp : originalRecipients) { 2315 if (RecipientEntry.isCreatedRecipient(temp.getEntry().getContactId()) 2316 && getSpannable().getSpanStart(temp) != -1) { 2317 // Replace this. 2318 final RecipientEntry entry = createValidatedEntry(entries 2319 .get(tokenizeAddress(temp.getEntry().getDestination()).toLowerCase())); 2320 if (entry != null) { 2321 mHandler.post(new Runnable() { 2322 @Override 2323 public void run() { 2324 replaceChip(temp, entry); 2325 } 2326 }); 2327 } 2328 } 2329 } 2330 return null; 2331 } 2332 } 2333 2334 2335 /** 2336 * MoreImageSpan is a simple class created for tracking the existence of a 2337 * more chip across activity restarts/ 2338 */ 2339 private class MoreImageSpan extends ImageSpan { 2340 public MoreImageSpan(Drawable b) { 2341 super(b); 2342 } 2343 } 2344 2345 @Override 2346 public boolean onDown(MotionEvent e) { 2347 return false; 2348 } 2349 2350 @Override 2351 public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { 2352 // Do nothing. 2353 return false; 2354 } 2355 2356 @Override 2357 public void onLongPress(MotionEvent event) { 2358 if (mSelectedChip != null) { 2359 return; 2360 } 2361 float x = event.getX(); 2362 float y = event.getY(); 2363 int offset = putOffsetInRange(getOffsetForPosition(x, y)); 2364 RecipientChip currentChip = findChip(offset); 2365 if (currentChip != null) { 2366 if (mDragEnabled) { 2367 // Start drag-and-drop for the selected chip. 2368 startDrag(currentChip); 2369 } else { 2370 // Copy the selected chip email address. 2371 showCopyDialog(currentChip.getEntry().getDestination()); 2372 } 2373 } 2374 } 2375 2376 /** 2377 * Enables drag-and-drop for chips. 2378 */ 2379 public void enableDrag() { 2380 mDragEnabled = true; 2381 } 2382 2383 /** 2384 * Starts drag-and-drop for the selected chip. 2385 */ 2386 private void startDrag(RecipientChip currentChip) { 2387 String address = currentChip.getEntry().getDestination(); 2388 ClipData data = ClipData.newPlainText(address, address + COMMIT_CHAR_COMMA); 2389 2390 // Start drag mode. 2391 startDrag(data, new RecipientChipShadow(currentChip), null, 0); 2392 2393 // Remove the current chip, so drag-and-drop will result in a move. 2394 // TODO (phamm): consider readd this chip if it's dropped outside a target. 2395 removeChip(currentChip); 2396 } 2397 2398 /** 2399 * Handles drag event. 2400 */ 2401 @Override 2402 public boolean onDragEvent(DragEvent event) { 2403 switch (event.getAction()) { 2404 case DragEvent.ACTION_DRAG_STARTED: 2405 // Only handle plain text drag and drop. 2406 return event.getClipDescription().hasMimeType(ClipDescription.MIMETYPE_TEXT_PLAIN); 2407 case DragEvent.ACTION_DRAG_ENTERED: 2408 requestFocus(); 2409 return true; 2410 case DragEvent.ACTION_DROP: 2411 handlePasteClip(event.getClipData()); 2412 return true; 2413 } 2414 return false; 2415 } 2416 2417 /** 2418 * Drag shadow for a {@link RecipientChip}. 2419 */ 2420 private final class RecipientChipShadow extends DragShadowBuilder { 2421 private final RecipientChip mChip; 2422 2423 public RecipientChipShadow(RecipientChip chip) { 2424 mChip = chip; 2425 } 2426 2427 @Override 2428 public void onProvideShadowMetrics(Point shadowSize, Point shadowTouchPoint) { 2429 Rect rect = mChip.getDrawable().getBounds(); 2430 shadowSize.set(rect.width(), rect.height()); 2431 shadowTouchPoint.set(rect.centerX(), rect.centerY()); 2432 } 2433 2434 @Override 2435 public void onDrawShadow(Canvas canvas) { 2436 mChip.getDrawable().draw(canvas); 2437 } 2438 } 2439 2440 private void showCopyDialog(final String address) { 2441 mCopyAddress = address; 2442 mCopyDialog.setTitle(address); 2443 mCopyDialog.setContentView(R.layout.copy_chip_dialog_layout); 2444 mCopyDialog.setCancelable(true); 2445 mCopyDialog.setCanceledOnTouchOutside(true); 2446 Button button = (Button)mCopyDialog.findViewById(android.R.id.button1); 2447 button.setOnClickListener(this); 2448 int btnTitleId; 2449 if (((BaseRecipientAdapter)getAdapter()).getQueryType() == 2450 BaseRecipientAdapter.QUERY_TYPE_PHONE) { 2451 btnTitleId = R.string.copy_number; 2452 } else { 2453 btnTitleId = R.string.copy_email; 2454 } 2455 String buttonTitle = getContext().getResources().getString(btnTitleId); 2456 button.setText(buttonTitle); 2457 mCopyDialog.setOnDismissListener(this); 2458 mCopyDialog.show(); 2459 } 2460 2461 @Override 2462 public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) { 2463 // Do nothing. 2464 return false; 2465 } 2466 2467 @Override 2468 public void onShowPress(MotionEvent e) { 2469 // Do nothing. 2470 } 2471 2472 @Override 2473 public boolean onSingleTapUp(MotionEvent e) { 2474 // Do nothing. 2475 return false; 2476 } 2477 2478 @Override 2479 public void onDismiss(DialogInterface dialog) { 2480 mCopyAddress = null; 2481 } 2482 2483 @Override 2484 public void onClick(View v) { 2485 // Copy this to the clipboard. 2486 ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService( 2487 Context.CLIPBOARD_SERVICE); 2488 clipboard.setPrimaryClip(ClipData.newPlainText("", mCopyAddress)); 2489 mCopyDialog.dismiss(); 2490 } 2491} 2492