Add TabletModeChangedListener for SystemUI.
Bug: 23256614
Change-Id: I6e5d636c24a84846cfad84da800911a469689dda
diff --git a/Android.mk b/Android.mk
index 18d9c69..4607276 100644
--- a/Android.mk
+++ b/Android.mk
@@ -171,6 +171,7 @@
core/java/android/hardware/hdmi/IHdmiVendorCommandListener.aidl \
core/java/android/hardware/input/IInputManager.aidl \
core/java/android/hardware/input/IInputDevicesChangedListener.aidl \
+ core/java/android/hardware/input/ITabletModeChangedListener.aidl \
core/java/android/hardware/location/IActivityRecognitionHardware.aidl \
core/java/android/hardware/location/IActivityRecognitionHardwareSink.aidl \
core/java/android/hardware/location/IActivityRecognitionHardwareWatcher.aidl \
diff --git a/core/java/android/hardware/input/IInputManager.aidl b/core/java/android/hardware/input/IInputManager.aidl
index 465d142..c8b45c7 100644
--- a/core/java/android/hardware/input/IInputManager.aidl
+++ b/core/java/android/hardware/input/IInputManager.aidl
@@ -19,6 +19,7 @@
import android.hardware.input.InputDeviceIdentifier;
import android.hardware.input.KeyboardLayout;
import android.hardware.input.IInputDevicesChangedListener;
+import android.hardware.input.ITabletModeChangedListener;
import android.hardware.input.TouchCalibration;
import android.os.IBinder;
import android.view.InputDevice;
@@ -60,6 +61,9 @@
// Registers an input devices changed listener.
void registerInputDevicesChangedListener(IInputDevicesChangedListener listener);
+ // Registers a tablet mode change listener
+ void registerTabletModeChangedListener(ITabletModeChangedListener listener);
+
// Input device vibrator control.
void vibrate(int deviceId, in long[] pattern, int repeat, IBinder token);
void cancelVibrate(int deviceId, IBinder token);
diff --git a/core/java/android/hardware/input/ITabletModeChangedListener.aidl b/core/java/android/hardware/input/ITabletModeChangedListener.aidl
new file mode 100644
index 0000000..a8559a7
--- /dev/null
+++ b/core/java/android/hardware/input/ITabletModeChangedListener.aidl
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2015 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 android.hardware.input;
+
+/** @hide */
+interface ITabletModeChangedListener {
+ /* Called when the device enters or exits tablet mode. */
+ oneway void onTabletModeChanged(long whenNanos, boolean inTabletMode);
+}
diff --git a/core/java/android/hardware/input/InputManager.java b/core/java/android/hardware/input/InputManager.java
index 444f020..a754d6b 100644
--- a/core/java/android/hardware/input/InputManager.java
+++ b/core/java/android/hardware/input/InputManager.java
@@ -16,6 +16,7 @@
package android.hardware.input;
+import com.android.internal.os.SomeArgs;
import com.android.internal.util.ArrayUtils;
import android.annotation.SdkConstant;
@@ -29,6 +30,7 @@
import android.os.Message;
import android.os.RemoteException;
import android.os.ServiceManager;
+import android.os.SystemClock;
import android.os.Vibrator;
import android.provider.Settings;
import android.provider.Settings.SettingNotFoundException;
@@ -38,6 +40,7 @@
import android.view.InputEvent;
import java.util.ArrayList;
+import java.util.List;
/**
* Provides information about input devices and available key layouts.
@@ -67,6 +70,11 @@
private final ArrayList<InputDeviceListenerDelegate> mInputDeviceListeners =
new ArrayList<InputDeviceListenerDelegate>();
+ // Guarded by mTabletModeLock
+ private final Object mTabletModeLock = new Object();
+ private TabletModeChangedListener mTabletModeChangedListener;
+ private List<OnTabletModeChangedListenerDelegate> mOnTabletModeChangedListeners;
+
/**
* Broadcast Action: Query available keyboard layouts.
* <p>
@@ -331,6 +339,72 @@
}
/**
+ * Register a tablet mode changed listener.
+ *
+ * @param listener The listener to register.
+ * @param handler The handler on which the listener should be invoked, or null
+ * if the listener should be invoked on the calling thread's looper.
+ * @hide
+ */
+ public void registerOnTabletModeChangedListener(
+ OnTabletModeChangedListener listener, Handler handler) {
+ if (listener == null) {
+ throw new IllegalArgumentException("listener must not be null");
+ }
+ synchronized (mTabletModeLock) {
+ if (mOnTabletModeChangedListeners == null) {
+ initializeTabletModeListenerLocked();
+ }
+ int idx = findOnTabletModeChangedListenerLocked(listener);
+ if (idx < 0) {
+ OnTabletModeChangedListenerDelegate d =
+ new OnTabletModeChangedListenerDelegate(listener, handler);
+ mOnTabletModeChangedListeners.add(d);
+ }
+ }
+ }
+
+ /**
+ * Unregister a tablet mode changed listener.
+ *
+ * @param listener The listener to unregister.
+ * @hide
+ */
+ public void unregisterOnTabletModeChangedListener(OnTabletModeChangedListener listener) {
+ if (listener == null) {
+ throw new IllegalArgumentException("listener must not be null");
+ }
+ synchronized (mTabletModeLock) {
+ int idx = findOnTabletModeChangedListenerLocked(listener);
+ if (idx >= 0) {
+ OnTabletModeChangedListenerDelegate d = mOnTabletModeChangedListeners.remove(idx);
+ d.removeCallbacksAndMessages(null);
+ }
+ }
+ }
+
+ private void initializeTabletModeListenerLocked() {
+ final TabletModeChangedListener listener = new TabletModeChangedListener();
+ try {
+ mIm.registerTabletModeChangedListener(listener);
+ } catch (RemoteException ex) {
+ throw new RuntimeException("Could not register tablet mode changed listener", ex);
+ }
+ mTabletModeChangedListener = listener;
+ mOnTabletModeChangedListeners = new ArrayList<>();
+ }
+
+ private int findOnTabletModeChangedListenerLocked(OnTabletModeChangedListener listener) {
+ final int N = mOnTabletModeChangedListeners.size();
+ for (int i = 0; i < N; i++) {
+ if (mOnTabletModeChangedListeners.get(i).mListener == listener) {
+ return i;
+ }
+ }
+ return -1;
+ }
+
+ /**
* Gets information about all supported keyboard layouts.
* <p>
* The input manager consults the built-in keyboard layouts as well
@@ -769,6 +843,22 @@
return false;
}
+
+ private void onTabletModeChanged(long whenNanos, boolean inTabletMode) {
+ if (DEBUG) {
+ Log.d(TAG, "Received tablet mode changed: "
+ + "whenNanos=" + whenNanos + ", inTabletMode=" + inTabletMode);
+ }
+ synchronized (mTabletModeLock) {
+ final int N = mOnTabletModeChangedListeners.size();
+ for (int i = 0; i < N; i++) {
+ OnTabletModeChangedListenerDelegate listener =
+ mOnTabletModeChangedListeners.get(i);
+ listener.sendTabletModeChanged(whenNanos, inTabletMode);
+ }
+ }
+ }
+
/**
* Gets a vibrator service associated with an input device, assuming it has one.
* @return The vibrator, never null.
@@ -838,6 +928,57 @@
}
}
+ /** @hide */
+ public interface OnTabletModeChangedListener {
+ /**
+ * Called whenever the device goes into or comes out of tablet mode.
+ *
+ * @param whenNanos The time at which the device transitioned into or
+ * out of tablet mode. This is given in nanoseconds in the
+ * {@link SystemClock#uptimeMillis} time base.
+ */
+ void onTabletModeChanged(long whenNanos, boolean inTabletMode);
+ }
+
+ private final class TabletModeChangedListener extends ITabletModeChangedListener.Stub {
+ @Override
+ public void onTabletModeChanged(long whenNanos, boolean inTabletMode) {
+ InputManager.this.onTabletModeChanged(whenNanos, inTabletMode);
+ }
+ }
+
+ private static final class OnTabletModeChangedListenerDelegate extends Handler {
+ private static final int MSG_TABLET_MODE_CHANGED = 0;
+
+ public final OnTabletModeChangedListener mListener;
+
+ public OnTabletModeChangedListenerDelegate(
+ OnTabletModeChangedListener listener, Handler handler) {
+ super(handler != null ? handler.getLooper() : Looper.myLooper());
+ mListener = listener;
+ }
+
+ public void sendTabletModeChanged(long whenNanos, boolean inTabletMode) {
+ SomeArgs args = SomeArgs.obtain();
+ args.argi1 = (int) (whenNanos & 0xFFFFFFFF);
+ args.argi2 = (int) (whenNanos >> 32);
+ args.arg1 = (Boolean) inTabletMode;
+ obtainMessage(MSG_TABLET_MODE_CHANGED, args).sendToTarget();
+ }
+
+ @Override
+ public void handleMessage(Message msg) {
+ switch (msg.what) {
+ case MSG_TABLET_MODE_CHANGED:
+ SomeArgs args = (SomeArgs) msg.obj;
+ long whenNanos = (args.argi1 & 0xFFFFFFFFl) | ((long) args.argi2 << 32);
+ boolean inTabletMode = (boolean) args.arg1;
+ mListener.onTabletModeChanged(whenNanos, inTabletMode);
+ break;
+ }
+ }
+ }
+
private final class InputDeviceVibrator extends Vibrator {
private final int mDeviceId;
private final Binder mToken;
diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
index 58f2d47..446b67f 100644
--- a/core/res/AndroidManifest.xml
+++ b/core/res/AndroidManifest.xml
@@ -2014,6 +2014,12 @@
<permission android:name="android.permission.SET_KEYBOARD_LAYOUT"
android:protectionLevel="signature" />
+ <!-- Allows an application to monitor changes in tablet mode.
+ <p>Not for use by third-party applications.
+ @hide -->
+ <permission android:name="android.permission.TABLET_MODE_LISTENER"
+ android:protectionLevel="signature" />
+
<!-- Allows an application to request installing packages. Apps
targeting APIs greater than 22 must hold this permission in
order to use {@link android.content.Intent#ACTION_INSTALL_PACKAGE}.
diff --git a/services/core/java/com/android/server/input/InputManagerService.java b/services/core/java/com/android/server/input/InputManagerService.java
index 17b4f9c..5a13672 100644
--- a/services/core/java/com/android/server/input/InputManagerService.java
+++ b/services/core/java/com/android/server/input/InputManagerService.java
@@ -17,6 +17,7 @@
package com.android.server.input;
import android.view.Display;
+import com.android.internal.os.SomeArgs;
import com.android.internal.R;
import com.android.internal.util.XmlUtils;
import com.android.server.DisplayThread;
@@ -52,6 +53,7 @@
import android.hardware.input.InputDeviceIdentifier;
import android.hardware.input.InputManager;
import android.hardware.input.InputManagerInternal;
+import android.hardware.input.ITabletModeChangedListener;
import android.hardware.input.KeyboardLayout;
import android.hardware.input.TouchCalibration;
import android.os.Binder;
@@ -93,6 +95,7 @@
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
+import java.util.List;
import libcore.io.Streams;
import libcore.util.Objects;
@@ -112,6 +115,7 @@
private static final int MSG_RELOAD_KEYBOARD_LAYOUTS = 3;
private static final int MSG_UPDATE_KEYBOARD_LAYOUTS = 4;
private static final int MSG_RELOAD_DEVICE_ALIASES = 5;
+ private static final int MSG_DELIVER_TABLET_MODE_CHANGED = 6;
// Pointer to native input manager service object.
private final long mPtr;
@@ -124,6 +128,13 @@
private boolean mSystemReady;
private NotificationManager mNotificationManager;
+ private final Object mTabletModeLock = new Object();
+ // List of currently registered tablet mode changed listeners by process id
+ private final SparseArray<TabletModeChangedListenerRecord> mTabletModeChangedListeners =
+ new SparseArray<>(); // guarded by mTabletModeLock
+ private final List<TabletModeChangedListenerRecord> mTempTabletModeChangedListenersToNotify =
+ new ArrayList<>();
+
// Persistent data store. Must be locked each time during use.
private final PersistentDataStore mDataStore = new PersistentDataStore();
@@ -227,6 +238,11 @@
/** Switch code: Lid switch. When set, lid is shut. */
public static final int SW_LID = 0x00;
+ /** Switch code: Tablet mode switch.
+ * When set, the device is in tablet mode (i.e. no keyboard is connected).
+ */
+ public static final int SW_TABLET_MODE = 0x01;
+
/** Switch code: Keypad slide. When set, keyboard is exposed. */
public static final int SW_KEYPAD_SLIDE = 0x0a;
@@ -246,6 +262,7 @@
public static final int SW_CAMERA_LENS_COVER = 0x09;
public static final int SW_LID_BIT = 1 << SW_LID;
+ public static final int SW_TABLET_MODE_BIT = 1 << SW_TABLET_MODE;
public static final int SW_KEYPAD_SLIDE_BIT = 1 << SW_KEYPAD_SLIDE;
public static final int SW_HEADPHONE_INSERT_BIT = 1 << SW_HEADPHONE_INSERT;
public static final int SW_MICROPHONE_INSERT_BIT = 1 << SW_MICROPHONE_INSERT;
@@ -774,6 +791,57 @@
}
}
+ @Override // Binder call
+ public void registerTabletModeChangedListener(ITabletModeChangedListener listener) {
+ if (!checkCallingPermission(android.Manifest.permission.TABLET_MODE_LISTENER,
+ "registerTabletModeChangedListener()")) {
+ throw new SecurityException("Requires TABLET_MODE_LISTENER permission");
+ }
+ if (listener == null) {
+ throw new IllegalArgumentException("listener must not be null");
+ }
+
+ synchronized (mTabletModeLock) {
+ final int callingPid = Binder.getCallingPid();
+ if (mTabletModeChangedListeners.get(callingPid) != null) {
+ throw new IllegalStateException("The calling process has already registered "
+ + "a TabletModeChangedListener.");
+ }
+ TabletModeChangedListenerRecord record =
+ new TabletModeChangedListenerRecord(callingPid, listener);
+ try {
+ IBinder binder = listener.asBinder();
+ binder.linkToDeath(record, 0);
+ } catch (RemoteException ex) {
+ throw new RuntimeException(ex);
+ }
+ mTabletModeChangedListeners.put(callingPid, record);
+ }
+ }
+
+ private void onTabletModeChangedListenerDied(int pid) {
+ synchronized (mTabletModeLock) {
+ mTabletModeChangedListeners.remove(pid);
+ }
+ }
+
+ // Must be called on handler
+ private void deliverTabletModeChanged(long whenNanos, boolean inTabletMode) {
+ mTempTabletModeChangedListenersToNotify.clear();
+ final int numListeners;
+ synchronized (mTabletModeLock) {
+ numListeners = mTabletModeChangedListeners.size();
+ for (int i = 0; i < numListeners; i++) {
+ mTempTabletModeChangedListenersToNotify.add(
+ mTabletModeChangedListeners.valueAt(i));
+ }
+ }
+ for (int i = 0; i < numListeners; i++) {
+ mTempTabletModeChangedListenersToNotify.get(i).notifyTabletModeChanged(
+ whenNanos, inTabletMode);
+ }
+ }
+
// Must be called on handler.
private void showMissingKeyboardLayoutNotification(InputDevice device) {
if (!mKeyboardLayoutNotificationShown) {
@@ -1419,6 +1487,15 @@
mWiredAccessoryCallbacks.notifyWiredAccessoryChanged(whenNanos, switchValues,
switchMask);
}
+
+ if ((switchMask & SW_TABLET_MODE) != 0) {
+ SomeArgs args = SomeArgs.obtain();
+ args.argi1 = (int) (whenNanos & 0xFFFFFFFF);
+ args.argi2 = (int) (whenNanos >> 32);
+ args.arg1 = Boolean.valueOf((switchValues & SW_TABLET_MODE_BIT) != 0);
+ mHandler.obtainMessage(MSG_DELIVER_TABLET_MODE_CHANGED,
+ args).sendToTarget();
+ }
}
// Native callback.
@@ -1664,6 +1741,12 @@
case MSG_RELOAD_DEVICE_ALIASES:
reloadDeviceAliases();
break;
+ case MSG_DELIVER_TABLET_MODE_CHANGED:
+ SomeArgs args = (SomeArgs) msg.obj;
+ long whenNanos = (args.argi1 & 0xFFFFFFFFl) | ((long) args.argi2 << 32);
+ boolean inTabletMode = (boolean) args.arg1;
+ deliverTabletModeChanged(whenNanos, inTabletMode);
+ break;
}
}
}
@@ -1755,6 +1838,34 @@
}
}
+ private final class TabletModeChangedListenerRecord implements DeathRecipient {
+ private final int mPid;
+ private final ITabletModeChangedListener mListener;
+
+ public TabletModeChangedListenerRecord(int pid, ITabletModeChangedListener listener) {
+ mPid = pid;
+ mListener = listener;
+ }
+
+ @Override
+ public void binderDied() {
+ if (DEBUG) {
+ Slog.d(TAG, "Tablet mode changed listener for pid " + mPid + " died.");
+ }
+ onTabletModeChangedListenerDied(mPid);
+ }
+
+ public void notifyTabletModeChanged(long whenNanos, boolean inTabletMode) {
+ try {
+ mListener.onTabletModeChanged(whenNanos, inTabletMode);
+ } catch (RemoteException ex) {
+ Slog.w(TAG, "Failed to notify process " + mPid +
+ " that tablet mode changed, assuming it died.", ex);
+ binderDied();
+ }
+ }
+ }
+
private final class VibratorToken implements DeathRecipient {
public final int mDeviceId;
public final IBinder mToken;
