Add a preference panel for mouse speed.
Bug: 4124987
Change-Id: Icf166810ebbd3745f0065331c140a074b58a363c
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 7e7bf1d..38ebfed 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -49,6 +49,7 @@
<uses-permission android:name="android.permission.WRITE_SYNC_SETTINGS" />
<uses-permission android:name="android.permission.STATUS_BAR" />
<uses-permission android:name="android.permission.MANAGE_USB" />
+ <uses-permission android:name="android.permission.SET_POINTER_SPEED" />
<application android:label="@string/settings_label"
android:icon="@mipmap/ic_launcher_settings"
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 03b4a05..c37fba2 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -2384,6 +2384,10 @@
card numbers. It comes from the application
<xliff:g id="ime_application_name">%1$s</xliff:g>.
Use this input method?</string>
+ <!-- On Language & input settings screen, heading. Inside the "Language & input settings" screen, this is the header for settings that relate to mouse and trackpad devices. [CHAR LIMIT=40] -->
+ <string name="pointer_settings_category">Mouse and trackpad settings</string>
+ <!-- On Language & input settings screen, setting summary. Setting for mouse pointer speed. [CHAR LIMIT=35] -->
+ <string name="pointer_speed">Pointer speed</string>
<!-- User dictionary settings --><skip />
<!-- User dictionary settings, The titlebar text of the User dictionary settings screen. -->
diff --git a/res/xml/language_settings.xml b/res/xml/language_settings.xml
index b7934e6..37d4661 100644
--- a/res/xml/language_settings.xml
+++ b/res/xml/language_settings.xml
@@ -72,4 +72,12 @@
<intent android:action="android.settings.INPUT_METHOD_SETTINGS"/>
</PreferenceScreen>
</PreferenceCategory>
+
+ <PreferenceCategory android:key="pointer_settings_category"
+ android:title="@string/pointer_settings_category">
+ <com.android.settings.PointerSpeedPreference
+ android:key="pointer_speed"
+ android:title="@string/pointer_speed"
+ android:dialogTitle="@string/pointer_speed" />
+ </PreferenceCategory>
</PreferenceScreen>
diff --git a/src/com/android/settings/PointerSpeedPreference.java b/src/com/android/settings/PointerSpeedPreference.java
new file mode 100644
index 0000000..e9704fd
--- /dev/null
+++ b/src/com/android/settings/PointerSpeedPreference.java
@@ -0,0 +1,209 @@
+/*
+ * Copyright (C) 2011 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.settings;
+
+import android.content.ContentResolver;
+import android.content.Context;
+import android.database.ContentObserver;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Parcel;
+import android.os.Parcelable;
+import android.os.RemoteException;
+import android.os.ServiceManager;
+import android.preference.SeekBarPreference;
+import android.provider.Settings;
+import android.provider.Settings.SettingNotFoundException;
+import android.util.AttributeSet;
+import android.view.IWindowManager;
+import android.view.View;
+import android.widget.SeekBar;
+
+public class PointerSpeedPreference extends SeekBarPreference implements
+ SeekBar.OnSeekBarChangeListener {
+ private SeekBar mSeekBar;
+
+ private int mOldSpeed;
+ private boolean mRestoredOldState;
+
+ private boolean mTouchInProgress;
+
+ private static final int MIN_SPEED = -7;
+ private static final int MAX_SPEED = 7;
+
+ private ContentObserver mSpeedObserver = new ContentObserver(new Handler()) {
+ @Override
+ public void onChange(boolean selfChange) {
+ onSpeedChanged();
+ }
+ };
+
+ public PointerSpeedPreference(Context context, AttributeSet attrs) {
+ super(context, attrs);
+ }
+
+ @Override
+ protected void showDialog(Bundle state) {
+ super.showDialog(state);
+
+ getContext().getContentResolver().registerContentObserver(
+ Settings.System.getUriFor(Settings.System.POINTER_SPEED), true,
+ mSpeedObserver);
+
+ mRestoredOldState = false;
+ }
+
+ @Override
+ protected void onBindDialogView(View view) {
+ super.onBindDialogView(view);
+
+ mSeekBar = getSeekBar(view);
+ mSeekBar.setMax(MAX_SPEED - MIN_SPEED);
+ mOldSpeed = getSpeed(0);
+ mSeekBar.setProgress(mOldSpeed - MIN_SPEED);
+ mSeekBar.setOnSeekBarChangeListener(this);
+ }
+
+ public void onProgressChanged(SeekBar seekBar, int progress, boolean fromTouch) {
+ if (!mTouchInProgress) {
+ setSpeed(progress + MIN_SPEED);
+ }
+ }
+
+ public void onStartTrackingTouch(SeekBar seekBar) {
+ mTouchInProgress = true;
+ }
+
+ public void onStopTrackingTouch(SeekBar seekBar) {
+ mTouchInProgress = false;
+ setSpeed(seekBar.getProgress() + MIN_SPEED);
+ }
+
+ private int getSpeed(int defaultValue) {
+ int speed = defaultValue;
+ try {
+ speed = Settings.System.getInt(getContext().getContentResolver(),
+ Settings.System.POINTER_SPEED);
+ } catch (SettingNotFoundException snfe) {
+ }
+ return speed;
+ }
+
+ private void onSpeedChanged() {
+ int speed = getSpeed(0);
+ mSeekBar.setProgress(speed - MIN_SPEED);
+ }
+
+ @Override
+ protected void onDialogClosed(boolean positiveResult) {
+ super.onDialogClosed(positiveResult);
+
+ final ContentResolver resolver = getContext().getContentResolver();
+
+ if (positiveResult) {
+ Settings.System.putInt(resolver, Settings.System.POINTER_SPEED,
+ mSeekBar.getProgress() + MIN_SPEED);
+ } else {
+ restoreOldState();
+ }
+
+ resolver.unregisterContentObserver(mSpeedObserver);
+ }
+
+ private void restoreOldState() {
+ if (mRestoredOldState) return;
+
+ setSpeed(mOldSpeed);
+ mRestoredOldState = true;
+ }
+
+ private void setSpeed(int speed) {
+ try {
+ IWindowManager wm = IWindowManager.Stub.asInterface(
+ ServiceManager.getService("window"));
+ if (wm != null) {
+ wm.setPointerSpeed(speed);
+ }
+ } catch (RemoteException e) {
+ }
+ }
+
+ @Override
+ protected Parcelable onSaveInstanceState() {
+ final Parcelable superState = super.onSaveInstanceState();
+ if (getDialog() == null || !getDialog().isShowing()) return superState;
+
+ // Save the dialog state
+ final SavedState myState = new SavedState(superState);
+ myState.progress = mSeekBar.getProgress();
+ myState.oldSpeed = mOldSpeed;
+
+ // Restore the old state when the activity or dialog is being paused
+ restoreOldState();
+ return myState;
+ }
+
+ @Override
+ protected void onRestoreInstanceState(Parcelable state) {
+ if (state == null || !state.getClass().equals(SavedState.class)) {
+ // Didn't save state for us in onSaveInstanceState
+ super.onRestoreInstanceState(state);
+ return;
+ }
+
+ SavedState myState = (SavedState) state;
+ super.onRestoreInstanceState(myState.getSuperState());
+ mOldSpeed = myState.oldSpeed;
+ mSeekBar.setProgress(myState.progress);
+ setSpeed(myState.progress + MIN_SPEED);
+ }
+
+ private static class SavedState extends BaseSavedState {
+ int progress;
+ int oldSpeed;
+
+ public SavedState(Parcel source) {
+ super(source);
+ progress = source.readInt();
+ oldSpeed = source.readInt();
+ }
+
+ @Override
+ public void writeToParcel(Parcel dest, int flags) {
+ super.writeToParcel(dest, flags);
+ dest.writeInt(progress);
+ dest.writeInt(oldSpeed);
+ }
+
+ public SavedState(Parcelable superState) {
+ super(superState);
+ }
+
+ public static final Parcelable.Creator<SavedState> CREATOR =
+ new Parcelable.Creator<SavedState>() {
+
+ public SavedState createFromParcel(Parcel in) {
+ return new SavedState(in);
+ }
+
+ public SavedState[] newArray(int size) {
+ return new SavedState[size];
+ }
+ };
+ }
+}
+