1 /* 2 * Copyright (C) 2008 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 17 18 package com.android.launcher2; 19 20 import android.widget.ImageView; 21 import android.content.Context; 22 import android.content.res.TypedArray; 23 import android.util.AttributeSet; 24 import android.view.MotionEvent; 25 import android.view.KeyEvent; 26 import android.view.View; 27 28 import com.android.launcher.R; 29 30 public class HandleView extends ImageView { 31 private static final int ORIENTATION_HORIZONTAL = 1; 32 33 private Launcher mLauncher; 34 private int mOrientation = ORIENTATION_HORIZONTAL; 35 HandleView(Context context)36 public HandleView(Context context) { 37 super(context); 38 } 39 HandleView(Context context, AttributeSet attrs)40 public HandleView(Context context, AttributeSet attrs) { 41 this(context, attrs, 0); 42 } 43 HandleView(Context context, AttributeSet attrs, int defStyle)44 public HandleView(Context context, AttributeSet attrs, int defStyle) { 45 super(context, attrs, defStyle); 46 47 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.HandleView, defStyle, 0); 48 mOrientation = a.getInt(R.styleable.HandleView_direction, ORIENTATION_HORIZONTAL); 49 a.recycle(); 50 51 setContentDescription(context.getString(R.string.all_apps_button_label)); 52 } 53 54 @Override focusSearch(int direction)55 public View focusSearch(int direction) { 56 View newFocus = super.focusSearch(direction); 57 if (newFocus == null && !mLauncher.isAllAppsVisible()) { 58 final Workspace workspace = mLauncher.getWorkspace(); 59 workspace.dispatchUnhandledMove(null, direction); 60 return (mOrientation == ORIENTATION_HORIZONTAL && direction == FOCUS_DOWN) ? 61 this : workspace; 62 } 63 return newFocus; 64 } 65 66 @Override onTouchEvent(MotionEvent ev)67 public boolean onTouchEvent(MotionEvent ev) { 68 if (ev.getAction() == MotionEvent.ACTION_DOWN && mLauncher.isAllAppsVisible()) { 69 return false; 70 } 71 return super.onTouchEvent(ev); 72 } 73 isDirectionKey(int keyCode)74 private static boolean isDirectionKey(int keyCode) { 75 return keyCode == KeyEvent.KEYCODE_DPAD_DOWN || keyCode == KeyEvent.KEYCODE_DPAD_LEFT || 76 keyCode == KeyEvent.KEYCODE_DPAD_RIGHT || keyCode == KeyEvent.KEYCODE_DPAD_UP; 77 } 78 setLauncher(Launcher launcher)79 void setLauncher(Launcher launcher) { 80 mLauncher = launcher; 81 } 82 } 83