19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2006 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.text.method; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.Log; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyEvent; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MotionEvent; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.*; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.widget.TextView; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source ProjectScrollingMovementMethod 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimplements MovementMethod 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Scrolls the text to the left if possible. 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean left(TextView widget, Spannable buffer) { 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Layout layout = widget.getLayout(); 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int scrolly = widget.getScrollY(); 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int scr = widget.getScrollX(); 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int em = Math.round(layout.getPaint().getFontSpacing()); 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int padding = widget.getTotalPaddingTop() + 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project widget.getTotalPaddingBottom(); 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int top = layout.getLineForVertical(scrolly); 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int bottom = layout.getLineForVertical(scrolly + widget.getHeight() - 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project padding); 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int left = Integer.MAX_VALUE; 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = top; i <= bottom; i++) { 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project left = (int) Math.min(left, layout.getLineLeft(i)); 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scr > left) { 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int s = Math.max(scr - em, left); 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project widget.scrollTo(s, widget.getScrollY()); 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Scrolls the text to the right if possible. 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean right(TextView widget, Spannable buffer) { 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Layout layout = widget.getLayout(); 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int scrolly = widget.getScrollY(); 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int scr = widget.getScrollX(); 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int em = Math.round(layout.getPaint().getFontSpacing()); 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int padding = widget.getTotalPaddingTop() + 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project widget.getTotalPaddingBottom(); 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int top = layout.getLineForVertical(scrolly); 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int bottom = layout.getLineForVertical(scrolly + widget.getHeight() - 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project padding); 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int right = 0; 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = top; i <= bottom; i++) { 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project right = (int) Math.max(right, layout.getLineRight(i)); 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project padding = widget.getTotalPaddingLeft() + widget.getTotalPaddingRight(); 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scr < right - (widget.getWidth() - padding)) { 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int s = Math.min(scr + em, right - (widget.getWidth() - padding)); 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project widget.scrollTo(s, widget.getScrollY()); 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Scrolls the text up if possible. 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean up(TextView widget, Spannable buffer) { 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Layout layout = widget.getLayout(); 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int areatop = widget.getScrollY(); 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int line = layout.getLineForVertical(areatop); 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int linetop = layout.getLineTop(line); 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the top line is partially visible, bring it all the way 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into view; otherwise, bring the previous line into view. 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (areatop == linetop) 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project line--; 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (line >= 0) { 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Touch.scrollTo(widget, layout, 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project widget.getScrollX(), layout.getLineTop(line)); 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Scrolls the text down if possible. 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean down(TextView widget, Spannable buffer) { 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Layout layout = widget.getLayout(); 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int padding = widget.getTotalPaddingTop() + 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project widget.getTotalPaddingBottom(); 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int areabot = widget.getScrollY() + widget.getHeight() - padding; 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int line = layout.getLineForVertical(areabot); 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (layout.getLineTop(line+1) < areabot + 1) { 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Less than a pixel of this line is out of view, 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // so we must have tried to make it entirely in view 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and now want the next line to be in view instead. 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project line++; 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (line <= layout.getLineCount() - 1) { 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project widget.scrollTo(widget.getScrollX(), layout.getLineTop(line+1) - 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (widget.getHeight() - padding)); 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Touch.scrollTo(widget, layout, 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project widget.getScrollX(), widget.getScrollY()); 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyDown(TextView widget, Spannable buffer, int keyCode, KeyEvent event) { 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return executeDown(widget, buffer, keyCode); 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean executeDown(TextView widget, Spannable buffer, int keyCode) { 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled |= left(widget, buffer); 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled |= right(widget, buffer); 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled |= up(widget, buffer); 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled |= down(widget, buffer); 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(TextView widget, Spannable buffer, int keyCode, KeyEvent event) { 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyOther(TextView view, Spannable text, KeyEvent event) { 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int code = event.getKeyCode(); 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (code != KeyEvent.KEYCODE_UNKNOWN 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project && event.getAction() == KeyEvent.ACTION_MULTIPLE) { 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int repeat = event.getRepeatCount(); 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean first = true; 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while ((--repeat) > 0) { 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (first && executeDown(view, text, code)) { 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = true; 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project MetaKeyKeyListener.adjustMetaAfterKeypress(text); 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project MetaKeyKeyListener.resetLockedMeta(text); 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project first = false; 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTrackballEvent(TextView widget, Spannable text, 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project MotionEvent event) { 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(TextView widget, Spannable buffer, 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project MotionEvent event) { 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return Touch.onTouchEvent(widget, buffer, event); 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void initialize(TextView widget, Spannable text) { } 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean canSelectArbitrarily() { 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTakeFocus(TextView widget, Spannable text, int dir) { 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Layout layout = widget.getLayout(); 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (layout != null && (dir & View.FOCUS_FORWARD) != 0) { 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project widget.scrollTo(widget.getScrollX(), 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layout.getLineTop(0)); 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (layout != null && (dir & View.FOCUS_BACKWARD) != 0) { 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int padding = widget.getTotalPaddingTop() + 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project widget.getTotalPaddingBottom(); 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int line = layout.getLineCount() - 1; 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project widget.scrollTo(widget.getScrollX(), 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layout.getLineTop(line+1) - 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (widget.getHeight() - padding)); 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static MovementMethod getInstance() { 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sInstance == null) 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sInstance = new ScrollingMovementMethod(); 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return sInstance; 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static ScrollingMovementMethod sInstance; 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 241