Dock changes:Docking station intents (c9f4eaf4) · Commits · e / os / android_frameworks_base

core/java/android/content/Intent.java

+39 −0

Original line number	Diff line number	Diff line
		@@ -1838,6 +1838,14 @@ public class Intent implements Parcelable {
		*/
		public static final String CATEGORY_FRAMEWORK_INSTRUMENTATION_TEST =
		"android.intent.category.FRAMEWORK_INSTRUMENTATION_TEST";

		/**
		* Broadcast Action: The phone was docked or undocked. Includes the extra
		* field {@link #EXTRA_DOCK_STATE}, containing the current dock state.
		* @hide
		*/
		public static final String ACTION_DOCK_EVENT = "android.intent.action.DOCK_EVENT";

		// ---------------------------------------------------------------------
		// ---------------------------------------------------------------------
		// Standard extra data keys.
		@@ -1959,6 +1967,37 @@ public class Intent implements Parcelable {
		*/
		public static final String EXTRA_ALARM_COUNT = "android.intent.extra.ALARM_COUNT";

		/**
		* Used as an int extra field in {@link android.content.Intent#ACTION_DOCK_EVENT}
		* intents to request the dock state. Possible values are
		* {@link android.content.Intent#ACTION_DOCK_STATE_UNDOCKED},
		* {@link android.content.Intent#ACTION_DOCK_STATE_DESK}, or
		* {@link android.content.Intent#ACTION_DOCK_STATE_CAR}.
		* @hide
		*/
		public static final String EXTRA_DOCK_STATE = "android.intent.extra.DOCK_STATE";

		/**
		* Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
		* to represent that the phone is not in any dock.
		* @hide
		*/
		public static final int EXTRA_DOCK_STATE_UNDOCKED = 0;

		/**
		* Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
		* to represent that the phone is in a desk dock.
		* @hide
		*/
		public static final int EXTRA_DOCK_STATE_DESK = 1;

		/**
		* Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
		* to represent that the phone is in a car dock.
		* @hide
		*/
		public static final int EXTRA_DOCK_STATE_CAR = 2;

		/**
		* Used as a parcelable extra field in {@link #ACTION_APP_ERROR}, containing
		* the bug report.

services/java/com/android/server/DockObserver.java

0 → 100644

+115 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2008 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		package com.android.server;

		import android.app.ActivityManagerNative;
		import android.content.Context;
		import android.content.Intent;
		import android.os.Handler;
		import android.os.Message;
		import android.os.UEventObserver;
		import android.util.Log;

		import java.io.FileReader;
		import java.io.FileNotFoundException;

		/**
		* <p>DockObserver monitors for a docking station.
		*/
		class DockObserver extends UEventObserver {
		private static final String TAG = DockObserver.class.getSimpleName();
		private static final boolean LOG = false;

		private static final String DOCK_UEVENT_MATCH = "DEVPATH=/devices/virtual/switch/dock";
		private static final String DOCK_STATE_PATH = "/sys/class/switch/dock/state";

		private int mDockState;
		private boolean mPendingIntent;

		private final Context mContext;

		public DockObserver(Context context) {
		mContext = context;

		startObserving(DOCK_UEVENT_MATCH);

		init(); // set initial status
		}

		@Override
		public void onUEvent(UEventObserver.UEvent event) {
		if (Log.isLoggable(TAG, Log.VERBOSE)) {
		Log.v(TAG, "Dock UEVENT: " + event.toString());
		}

		try {
		update(Integer.parseInt(event.get("SWITCH_STATE")));
		} catch (NumberFormatException e) {
		Log.e(TAG, "Could not parse switch state from event " + event);
		}
		}

		private synchronized final void init() {
		char[] buffer = new char[1024];

		int newState = mDockState;
		try {
		FileReader file = new FileReader(DOCK_STATE_PATH);
		int len = file.read(buffer, 0, 1024);
		newState = Integer.valueOf((new String(buffer, 0, len)).trim());

		} catch (FileNotFoundException e) {
		Log.w(TAG, "This kernel does not have dock station support");
		} catch (Exception e) {
		Log.e(TAG, "" , e);
		}

		update(newState);
		}

		private synchronized final void update(int newState) {
		if (newState != mDockState) {
		mDockState = newState;

		mPendingIntent = true;
		mHandler.sendEmptyMessage(0);
		}
		}

		private synchronized final void sendIntent() {
		// Pack up the values and broadcast them to everyone
		Intent intent = new Intent(Intent.ACTION_DOCK_EVENT);
		intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
		intent.putExtra(Intent.EXTRA_DOCK_STATE, mDockState);

		// TODO: Should we require a permission?
		if (Log.isLoggable(TAG, Log.VERBOSE)) {
		Log.v(TAG, "Broadcasting dock state " + mDockState);
		}
		ActivityManagerNative.broadcastStickyIntent(intent, null);
		}

		private final Handler mHandler = new Handler() {
		@Override
		public void handleMessage(Message msg) {
		if (mPendingIntent) {
		sendIntent();
		mPendingIntent = false;
		}
		}
		};
		}

services/java/com/android/server/SystemServer.java

+9 −0

Original line number	Diff line number	Diff line
		@@ -92,6 +92,7 @@ class ServerThread extends Thread {
		BluetoothDeviceService bluetooth = null;
		BluetoothA2dpService bluetoothA2dp = null;
		HeadsetObserver headset = null;
		DockObserver dock = null;

		// Critical services...
		try {
		@@ -325,6 +326,14 @@ class ServerThread extends Thread {
		Log.e(TAG, "Failure starting HeadsetObserver", e);
		}

		try {
		Log.i(TAG, "Starting DockObserver");
		// Listen for dock station changes
		dock = new DockObserver(context);
		} catch (Throwable e) {
		Log.e(TAG, "Failure starting DockObserver", e);
		}

		try {
		Log.i(TAG, "Starting Backup Service");
		ServiceManager.addService(Context.BACKUP_SERVICE, new BackupManagerService(context));