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 1967b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brownimport android.graphics.Rect; 20b0d6ba1ec4f71b96cab7d1ff62b846d5cf162c4fGilles Debunneimport android.text.Layout; 21b0d6ba1ec4f71b96cab7d1ff62b846d5cf162c4fGilles Debunneimport android.text.Selection; 22b0d6ba1ec4f71b96cab7d1ff62b846d5cf162c4fGilles Debunneimport android.text.Spannable; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyEvent; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MotionEvent; 25b0d6ba1ec4f71b96cab7d1ff62b846d5cf162c4fGilles Debunneimport android.view.View; 26b0d6ba1ec4f71b96cab7d1ff62b846d5cf162c4fGilles Debunneimport android.widget.TextView; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2867b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown/** 2967b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown * A movement method that provides cursor movement and selection. 3067b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown * Supports displaying the context menu on DPad Center. 3167b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown */ 3267b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brownpublic class ArrowKeyMovementMethod extends BaseMovementMethod implements MovementMethod { 3367b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown private static boolean isSelecting(Spannable buffer) { 34497a92cc5ba2176b8a8484b0a7da040eac0e887bJeff Brown return ((MetaKeyKeyListener.getMetaState(buffer, MetaKeyKeyListener.META_SHIFT_ON) == 1) || 35b0d6ba1ec4f71b96cab7d1ff62b846d5cf162c4fGilles Debunne (MetaKeyKeyListener.getMetaState(buffer, MetaKeyKeyListener.META_SELECTING) != 0)); 36b0d6ba1ec4f71b96cab7d1ff62b846d5cf162c4fGilles Debunne } 37b0d6ba1ec4f71b96cab7d1ff62b846d5cf162c4fGilles Debunne 38287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne private static int getCurrentLineTop(Spannable buffer, Layout layout) { 3967b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown return layout.getLineTop(layout.getLineForOffset(Selection.getSelectionEnd(buffer))); 40b0d6ba1ec4f71b96cab7d1ff62b846d5cf162c4fGilles Debunne } 41b0d6ba1ec4f71b96cab7d1ff62b846d5cf162c4fGilles Debunne 42287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne private static int getPageHeight(TextView widget) { 4367b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown // This calculation does not take into account the view transformations that 4467b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown // may have been applied to the child or its containers. In case of scaling or 4567b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown // rotation, the calculated page height may be incorrect. 4667b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown final Rect rect = new Rect(); 4767b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown return widget.getGlobalVisibleRect(rect) ? rect.height() : 0; 4867b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown } 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5067b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown @Override 5167b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown protected boolean handleMovementKey(TextView widget, Spannable buffer, int keyCode, 5267b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown int movementMetaState, KeyEvent event) { 5367b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown switch (keyCode) { 5467b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown case KeyEvent.KEYCODE_DPAD_CENTER: 5567b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown if (KeyEvent.metaStateHasNoModifiers(movementMetaState)) { 5667b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown if (event.getAction() == KeyEvent.ACTION_DOWN 5767b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown && event.getRepeatCount() == 0 5867b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown && MetaKeyKeyListener.getMetaState(buffer, 5967b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown MetaKeyKeyListener.META_SELECTING) != 0) { 6067b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown return widget.showContextMenu(); 6167b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown } 6267b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown } 6367b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown break; 6467b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown } 6567b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown return super.handleMovementKey(widget, buffer, keyCode, movementMetaState, event); 6667b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown } 6767b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown 6867b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown @Override 6967b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown protected boolean left(TextView widget, Spannable buffer) { 7067b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown final Layout layout = widget.getLayout(); 7167b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown if (isSelecting(buffer)) { 7267b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown return Selection.extendLeft(buffer, layout); 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7467b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown return Selection.moveLeft(buffer, layout); 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7867b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown @Override 7967b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown protected boolean right(TextView widget, Spannable buffer) { 8067b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown final Layout layout = widget.getLayout(); 8167b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown if (isSelecting(buffer)) { 8267b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown return Selection.extendRight(buffer, layout); 8367b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown } else { 8467b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown return Selection.moveRight(buffer, layout); 8567b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown } 8667b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown } 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8867b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown @Override 8967b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown protected boolean up(TextView widget, Spannable buffer) { 9067b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown final Layout layout = widget.getLayout(); 9167b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown if (isSelecting(buffer)) { 9267b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown return Selection.extendUp(buffer, layout); 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 9467b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown return Selection.moveUp(buffer, layout); 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9867b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown @Override 9967b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown protected boolean down(TextView widget, Spannable buffer) { 10067b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown final Layout layout = widget.getLayout(); 10167b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown if (isSelecting(buffer)) { 10267b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown return Selection.extendDown(buffer, layout); 10367b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown } else { 10467b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown return Selection.moveDown(buffer, layout); 10567b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown } 10667b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown } 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10867b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown @Override 10967b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown protected boolean pageUp(TextView widget, Spannable buffer) { 11067b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown final Layout layout = widget.getLayout(); 11167b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown final boolean selecting = isSelecting(buffer); 11267b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown final int targetY = getCurrentLineTop(buffer, layout) - getPageHeight(widget); 11367b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown boolean handled = false; 11467b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown for (;;) { 11567b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown final int previousSelectionEnd = Selection.getSelectionEnd(buffer); 11667b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown if (selecting) { 11767b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown Selection.extendUp(buffer, layout); 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11967b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown Selection.moveUp(buffer, layout); 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12167b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown if (Selection.getSelectionEnd(buffer) == previousSelectionEnd) { 12267b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown break; 12367b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown } 12467b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown handled = true; 12567b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown if (getCurrentLineTop(buffer, layout) <= targetY) { 12667b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown break; 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12967b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown return handled; 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13267b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown @Override 13367b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown protected boolean pageDown(TextView widget, Spannable buffer) { 13467b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown final Layout layout = widget.getLayout(); 13567b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown final boolean selecting = isSelecting(buffer); 13667b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown final int targetY = getCurrentLineTop(buffer, layout) + getPageHeight(widget); 13767b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown boolean handled = false; 13867b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown for (;;) { 13967b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown final int previousSelectionEnd = Selection.getSelectionEnd(buffer); 14067b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown if (selecting) { 14167b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown Selection.extendDown(buffer, layout); 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14367b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown Selection.moveDown(buffer, layout); 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14567b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown if (Selection.getSelectionEnd(buffer) == previousSelectionEnd) { 14667b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown break; 14767b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown } 14867b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown handled = true; 14967b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown if (getCurrentLineTop(buffer, layout) >= targetY) { 15067b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown break; 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15367b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown return handled; 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15667b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown @Override 15767b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown protected boolean top(TextView widget, Spannable buffer) { 15867b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown if (isSelecting(buffer)) { 15967b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown Selection.extendSelection(buffer, 0); 16067b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown } else { 16167b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown Selection.setSelection(buffer, 0); 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16367b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown return true; 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16667b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown @Override 16767b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown protected boolean bottom(TextView widget, Spannable buffer) { 16867b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown if (isSelecting(buffer)) { 16967b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown Selection.extendSelection(buffer, buffer.length()); 17067b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown } else { 17167b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown Selection.setSelection(buffer, buffer.length()); 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17367b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown return true; 17467b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown } 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17667b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown @Override 17767b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown protected boolean lineStart(TextView widget, Spannable buffer) { 17867b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown final Layout layout = widget.getLayout(); 17967b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown if (isSelecting(buffer)) { 18067b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown return Selection.extendToLeftEdge(buffer, layout); 18167b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown } else { 18267b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown return Selection.moveToLeftEdge(buffer, layout); 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18667b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown @Override 18767b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown protected boolean lineEnd(TextView widget, Spannable buffer) { 18867b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown final Layout layout = widget.getLayout(); 18967b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown if (isSelecting(buffer)) { 19067b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown return Selection.extendToRightEdge(buffer, layout); 19167b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown } else { 19267b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown return Selection.moveToRightEdge(buffer, layout); 19367b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown } 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 196e982dfc1bae36620f67371efc7b0a0f8adc9450dJeff Sharkey /** {@hide} */ 197e982dfc1bae36620f67371efc7b0a0f8adc9450dJeff Sharkey @Override 198e982dfc1bae36620f67371efc7b0a0f8adc9450dJeff Sharkey protected boolean leftWord(TextView widget, Spannable buffer) { 199287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne final int selectionEnd = widget.getSelectionEnd(); 2009d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne final WordIterator wordIterator = widget.getWordIterator(); 2019d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne wordIterator.setCharSequence(buffer, selectionEnd, selectionEnd); 2029d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne return Selection.moveToPreceding(buffer, wordIterator, isSelecting(buffer)); 203e982dfc1bae36620f67371efc7b0a0f8adc9450dJeff Sharkey } 204e982dfc1bae36620f67371efc7b0a0f8adc9450dJeff Sharkey 205e982dfc1bae36620f67371efc7b0a0f8adc9450dJeff Sharkey /** {@hide} */ 206e982dfc1bae36620f67371efc7b0a0f8adc9450dJeff Sharkey @Override 207e982dfc1bae36620f67371efc7b0a0f8adc9450dJeff Sharkey protected boolean rightWord(TextView widget, Spannable buffer) { 208287d6c6e12a38864d019fa7b9184206bc8a31ea1Gilles Debunne final int selectionEnd = widget.getSelectionEnd(); 2099d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne final WordIterator wordIterator = widget.getWordIterator(); 2109d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne wordIterator.setCharSequence(buffer, selectionEnd, selectionEnd); 2119d8d3f1539ce5bdf512bd47ec1648609d6cde5b1Gilles Debunne return Selection.moveToFollowing(buffer, wordIterator, isSelecting(buffer)); 212e982dfc1bae36620f67371efc7b0a0f8adc9450dJeff Sharkey } 213e982dfc1bae36620f67371efc7b0a0f8adc9450dJeff Sharkey 21467b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown @Override 21567b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown protected boolean home(TextView widget, Spannable buffer) { 21667b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown return lineStart(widget, buffer); 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 218ce08379e22609415971ece6ba3417d6d3fd338d2Maryam Garrett 21967b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown @Override 22067b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown protected boolean end(TextView widget, Spannable buffer) { 22167b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown return lineEnd(widget, buffer); 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 223ce08379e22609415971ece6ba3417d6d3fd338d2Maryam Garrett 22467b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown @Override 225b0d6ba1ec4f71b96cab7d1ff62b846d5cf162c4fGilles Debunne public boolean onTouchEvent(TextView widget, Spannable buffer, MotionEvent event) { 226e982dfc1bae36620f67371efc7b0a0f8adc9450dJeff Sharkey int initialScrollX = -1; 227e982dfc1bae36620f67371efc7b0a0f8adc9450dJeff Sharkey int initialScrollY = -1; 2280eb704ca7a0844186e0755e86bc4afc23297797dGilles Debunne final int action = event.getAction(); 2290eb704ca7a0844186e0755e86bc4afc23297797dGilles Debunne 2300eb704ca7a0844186e0755e86bc4afc23297797dGilles Debunne if (action == MotionEvent.ACTION_UP) { 2311c9aefd471cec85f905bea4099f4a641f347e0a0Dianne Hackborn initialScrollX = Touch.getInitialScrollX(widget, buffer); 2321c9aefd471cec85f905bea4099f4a641f347e0a0Dianne Hackborn initialScrollY = Touch.getInitialScrollY(widget, buffer); 2331c9aefd471cec85f905bea4099f4a641f347e0a0Dianne Hackborn } 234ce08379e22609415971ece6ba3417d6d3fd338d2Maryam Garrett 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = Touch.onTouchEvent(widget, buffer, event); 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 237b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (widget.isFocused() && !widget.didTouchFocusSelect()) { 2380eb704ca7a0844186e0755e86bc4afc23297797dGilles Debunne if (action == MotionEvent.ACTION_DOWN) { 23970a6312f09329bd0b19343bc7906f9ce665fe3adGilles Debunne if (isSelecting(buffer)) { 2403bca69b09fb51116b5eb18fb91cb991c1450e384Gilles Debunne int offset = widget.getOffsetForPosition(event.getX(), event.getY()); 241e982dfc1bae36620f67371efc7b0a0f8adc9450dJeff Sharkey 242b0d6ba1ec4f71b96cab7d1ff62b846d5cf162c4fGilles Debunne buffer.setSpan(LAST_TAP_DOWN, offset, offset, Spannable.SPAN_POINT_POINT); 243ab9289320f598509cf358523ba173d69178a55eaMaryam Garrett 244ab9289320f598509cf358523ba173d69178a55eaMaryam Garrett // Disallow intercepting of the touch events, so that 245ab9289320f598509cf358523ba173d69178a55eaMaryam Garrett // users can scroll and select at the same time. 246ab9289320f598509cf358523ba173d69178a55eaMaryam Garrett // without this, users would get booted out of select 247ab9289320f598509cf358523ba173d69178a55eaMaryam Garrett // mode once the view detected it needed to scroll. 248ab9289320f598509cf358523ba173d69178a55eaMaryam Garrett widget.getParent().requestDisallowInterceptTouchEvent(true); 249ce08379e22609415971ece6ba3417d6d3fd338d2Maryam Garrett } 2500eb704ca7a0844186e0755e86bc4afc23297797dGilles Debunne } else if (action == MotionEvent.ACTION_MOVE) { 25170a6312f09329bd0b19343bc7906f9ce665fe3adGilles Debunne if (isSelecting(buffer) && handled) { 25239f0efba92a4420f77e3abc53c367ea3cacde3cfMaryam Garrett // Before selecting, make sure we've moved out of the "slop". 25339f0efba92a4420f77e3abc53c367ea3cacde3cfMaryam Garrett // handled will be true, if we're in select mode AND we're 25439f0efba92a4420f77e3abc53c367ea3cacde3cfMaryam Garrett // OUT of the slop 25539f0efba92a4420f77e3abc53c367ea3cacde3cfMaryam Garrett 25639f0efba92a4420f77e3abc53c367ea3cacde3cfMaryam Garrett // Turn long press off while we're selecting. User needs to 257b0d6ba1ec4f71b96cab7d1ff62b846d5cf162c4fGilles Debunne // re-tap on the selection to enable long press 25839f0efba92a4420f77e3abc53c367ea3cacde3cfMaryam Garrett widget.cancelLongPress(); 25939f0efba92a4420f77e3abc53c367ea3cacde3cfMaryam Garrett 26039f0efba92a4420f77e3abc53c367ea3cacde3cfMaryam Garrett // Update selection as we're moving the selection area. 26139f0efba92a4420f77e3abc53c367ea3cacde3cfMaryam Garrett 26239f0efba92a4420f77e3abc53c367ea3cacde3cfMaryam Garrett // Get the current touch position 2633bca69b09fb51116b5eb18fb91cb991c1450e384Gilles Debunne int offset = widget.getOffsetForPosition(event.getX(), event.getY()); 264b0d6ba1ec4f71b96cab7d1ff62b846d5cf162c4fGilles Debunne 265b0d6ba1ec4f71b96cab7d1ff62b846d5cf162c4fGilles Debunne Selection.extendSelection(buffer, offset); 26639f0efba92a4420f77e3abc53c367ea3cacde3cfMaryam Garrett return true; 267ce08379e22609415971ece6ba3417d6d3fd338d2Maryam Garrett } 2680eb704ca7a0844186e0755e86bc4afc23297797dGilles Debunne } else if (action == MotionEvent.ACTION_UP) { 2691c9aefd471cec85f905bea4099f4a641f347e0a0Dianne Hackborn // If we have scrolled, then the up shouldn't move the cursor, 2701c9aefd471cec85f905bea4099f4a641f347e0a0Dianne Hackborn // but we do need to make sure the cursor is still visible at 2711c9aefd471cec85f905bea4099f4a641f347e0a0Dianne Hackborn // the current scroll offset to avoid the scroll jumping later 2721c9aefd471cec85f905bea4099f4a641f347e0a0Dianne Hackborn // to show it. 2731c9aefd471cec85f905bea4099f4a641f347e0a0Dianne Hackborn if ((initialScrollY >= 0 && initialScrollY != widget.getScrollY()) || 274b0d6ba1ec4f71b96cab7d1ff62b846d5cf162c4fGilles Debunne (initialScrollX >= 0 && initialScrollX != widget.getScrollX())) { 2751c9aefd471cec85f905bea4099f4a641f347e0a0Dianne Hackborn widget.moveCursorToVisibleOffset(); 2761c9aefd471cec85f905bea4099f4a641f347e0a0Dianne Hackborn return true; 2771c9aefd471cec85f905bea4099f4a641f347e0a0Dianne Hackborn } 278ce08379e22609415971ece6ba3417d6d3fd338d2Maryam Garrett 2793bca69b09fb51116b5eb18fb91cb991c1450e384Gilles Debunne int offset = widget.getOffsetForPosition(event.getX(), event.getY()); 28067b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown if (isSelecting(buffer)) { 28162c4ad3b6ba162540c3fb57fcacb375ccfa53454Maryam Garrett buffer.removeSpan(LAST_TAP_DOWN); 282b0d6ba1ec4f71b96cab7d1ff62b846d5cf162c4fGilles Debunne Selection.extendSelection(buffer, offset); 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project MetaKeyKeyListener.adjustMetaAfterKeypress(buffer); 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project MetaKeyKeyListener.resetLockedMeta(buffer); 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29567b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown @Override 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean canSelectArbitrarily() { 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30067b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown @Override 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void initialize(TextView widget, Spannable text) { 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Selection.setSelection(text, 0); 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30567b6ab72ae96a9f2be929de2c32c110df5390fddJeff Brown @Override 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTakeFocus(TextView view, Spannable text, int dir) { 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((dir & (View.FOCUS_FORWARD | View.FOCUS_DOWN)) != 0) { 3082703a42d16af0e62da1bba02b6c935d98debf936Gilles Debunne if (view.getLayout() == null) { 3092703a42d16af0e62da1bba02b6c935d98debf936Gilles Debunne // This shouldn't be null, but do something sensible if it is. 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Selection.setSelection(text, text.length()); 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Selection.setSelection(text, text.length()); 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static MovementMethod getInstance() { 318b0d6ba1ec4f71b96cab7d1ff62b846d5cf162c4fGilles Debunne if (sInstance == null) { 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sInstance = new ArrowKeyMovementMethod(); 320b0d6ba1ec4f71b96cab7d1ff62b846d5cf162c4fGilles Debunne } 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return sInstance; 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 325ce08379e22609415971ece6ba3417d6d3fd338d2Maryam Garrett private static final Object LAST_TAP_DOWN = new Object(); 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static ArrowKeyMovementMethod sInstance; 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 328