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.systemui.statusbar.tablet; 18 19import java.util.ArrayList; 20 21import android.content.BroadcastReceiver; 22import android.content.Context; 23import android.content.Intent; 24import android.content.IntentFilter; 25import android.content.res.Resources; 26import android.util.DisplayMetrics; 27import android.util.Slog; 28import android.view.Display; 29import android.view.WindowManager; 30import android.view.WindowManagerImpl; 31import android.view.WindowManagerPolicy; 32 33public class HeightReceiver extends BroadcastReceiver { 34 private static final String TAG = "StatusBar.HeightReceiver"; 35 36 public interface OnBarHeightChangedListener { 37 public void onBarHeightChanged(int height); 38 } 39 40 Context mContext; 41 ArrayList<OnBarHeightChangedListener> mListeners = new ArrayList<OnBarHeightChangedListener>(); 42 WindowManager mWindowManager; 43 int mHeight; 44 boolean mPlugged; 45 46 public HeightReceiver(Context context) { 47 mContext = context; 48 mWindowManager = WindowManagerImpl.getDefault(); 49 } 50 51 public void addOnBarHeightChangedListener(OnBarHeightChangedListener l) { 52 mListeners.add(l); 53 l.onBarHeightChanged(mHeight); 54 } 55 56 public void removeOnBarHeightChangedListener(OnBarHeightChangedListener l) { 57 mListeners.remove(l); 58 } 59 60 @Override 61 public void onReceive(Context context, Intent intent) { 62 final boolean plugged 63 = intent.getBooleanExtra(WindowManagerPolicy.EXTRA_HDMI_PLUGGED_STATE, false); 64 setPlugged(plugged); 65 } 66 67 public void registerReceiver() { 68 final IntentFilter filter = new IntentFilter(); 69 filter.addAction(WindowManagerPolicy.ACTION_HDMI_PLUGGED); 70 final Intent val = mContext.registerReceiver(this, filter); 71 onReceive(mContext, val); 72 } 73 74 private void setPlugged(boolean plugged) { 75 mPlugged = plugged; 76 updateHeight(); 77 } 78 79 public void updateHeight() { 80 final Resources res = mContext.getResources(); 81 82 int height = -1; 83 if (mPlugged) { 84 final DisplayMetrics metrics = new DisplayMetrics(); 85 Display display = mWindowManager.getDefaultDisplay(); 86 display.getRealMetrics(metrics); 87 88 //Slog.i(TAG, "updateHeight: display metrics=" + metrics); 89 final int shortSide = Math.min(metrics.widthPixels, metrics.heightPixels); 90 final int externalShortSide = Math.min(display.getRawExternalWidth(), 91 display.getRawExternalHeight()); 92 height = shortSide - externalShortSide; 93 } 94 95 final int minHeight 96 = res.getDimensionPixelSize(com.android.internal.R.dimen.status_bar_height); 97 if (height < minHeight) { 98 height = minHeight; 99 } 100 Slog.i(TAG, "Resizing status bar plugged=" + mPlugged + " height=" 101 + height + " old=" + mHeight); 102 mHeight = height; 103 104 final int N = mListeners.size(); 105 for (int i=0; i<N; i++) { 106 mListeners.get(i).onBarHeightChanged(height); 107 } 108 } 109 110 public int getHeight() { 111 return mHeight; 112 } 113} 114 115