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Add A11y Slices

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Add AccessibilityPreferenceController, which wraps all a11y settings
since they are share common infrastructure for enabling, current value,
and availability.

We add an overlay for OEMs to declare their bundled a11y services.
This is the only list of services that will be possible to enabled via
Settings slices.

Accessibility Slices are built by getting a list of valid services,
and indexing the service names as a key in the Slices DB. When they are
built at runtime, they use the generic A11yPrefController to get the status
and enable/disable the service.

Bug: 67997836
Bug: 67997672
Test: robotests
Change-Id: I66f905bf1c55eecb937945c4675c12bcbc96d698
This commit is contained in:
Matthew Fritze
2018-03-01 19:02:07 -08:00
parent d743f20618
commit a711ed8330
14 changed files with 467 additions and 49 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
src/com/android/settings/accessibility/AccessibilitySettings.java
View File

@@ -342,6 +342,21 @@ public class AccessibilitySettings extends SettingsPreferenceFragment implements
return super.onPreferenceTreeClick(preference);
}
public static CharSequence getServiceSummary(Context context, AccessibilityServiceInfo info,
boolean serviceEnabled) {
final String serviceState = serviceEnabled
? context.getString(R.string.accessibility_summary_state_enabled)
: context.getString(R.string.accessibility_summary_state_disabled);
final CharSequence serviceSummary = info.loadSummary(context.getPackageManager());
final String stateSummaryCombo = context.getString(
R.string.preference_summary_default_combination,
serviceState, serviceSummary);
return (TextUtils.isEmpty(serviceSummary))
? serviceState
: stateSummaryCombo;
}
private void handleToggleTextContrastPreferenceClick() {
Settings.Secure.putInt(getContentResolver(),
Settings.Secure.ACCESSIBILITY_HIGH_TEXT_CONTRAST_ENABLED,
@@ -543,15 +558,9 @@ public class AccessibilitySettings extends SettingsPreferenceFragment implements
preference.setSummary(R.string.accessibility_summary_state_stopped);
description = getString(R.string.accessibility_description_state_stopped);
} else {
final String serviceState = serviceEnabled ?
getString(R.string.accessibility_summary_state_enabled) :
getString(R.string.accessibility_summary_state_disabled);
final CharSequence serviceSummary = info.loadSummary(getPackageManager());
final String stateSummaryCombo = getString(
R.string.preference_summary_default_combination,
serviceState, serviceSummary);
preference.setSummary((TextUtils.isEmpty(serviceSummary)) ? serviceState
: stateSummaryCombo);
final CharSequence serviceSummary = getServiceSummary(getContext(), info,
serviceEnabled);
preference.setSummary(serviceSummary);
}
// Disable all accessibility services that are not permitted.

108
src/com/android/settings/accessibility/AccessibilitySlicePreferenceController.java Normal file
View File

@@ -0,0 +1,108 @@
/*
* Copyright (C) 2018 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.accessibility;
import android.accessibilityservice.AccessibilityServiceInfo;
import android.content.ComponentName;
import android.content.ContentResolver;
import android.content.Context;
import android.provider.Settings;
import android.view.accessibility.AccessibilityManager;
import com.android.settings.accessibility.AccessibilitySettings;
import com.android.settings.core.TogglePreferenceController;
import com.android.settingslib.accessibility.AccessibilityUtils;
import java.util.List;
import java.util.Set;
/**
* PreferenceController for accessibility services to be used by Slices.
* Wraps the common logic which enables accessibility services and checks their availability.
* <p>
* Should not be used in a {@link com.android.settings.dashboard.DashboardFragment}.
*/
public class AccessibilitySlicePreferenceController extends TogglePreferenceController {
private final ComponentName mComponentName;
private final int ON = 1;
private final int OFF = 0;
public AccessibilitySlicePreferenceController(Context context, String preferenceKey) {
super(context, preferenceKey);
mComponentName = ComponentName.unflattenFromString(getPreferenceKey());
if (mComponentName == null) {
throw new IllegalArgumentException(
"Illegal Component Name from: " + preferenceKey);
}
}
@Override
public CharSequence getSummary() {
final AccessibilityServiceInfo serviceInfo = getAccessibilityServiceInfo();
return serviceInfo == null
? "" : AccessibilitySettings.getServiceSummary(mContext, serviceInfo, isChecked());
}
@Override
public boolean isChecked() {
final ContentResolver contentResolver = mContext.getContentResolver();
final boolean accessibilityEnabled = Settings.Secure.getInt(contentResolver,
Settings.Secure.ACCESSIBILITY_ENABLED, OFF) == ON;
if (!accessibilityEnabled) {
return false;
}
final Set<ComponentName> componentNames =
AccessibilityUtils.getEnabledServicesFromSettings(mContext);
return componentNames.contains(mComponentName);
}
@Override
public boolean setChecked(boolean isChecked) {
if (getAccessibilityServiceInfo() == null) {
return false;
}
AccessibilityUtils.setAccessibilityServiceState(mContext, mComponentName, isChecked);
return isChecked == isChecked(); // Verify that it was probably changed.
}
@Override
public int getAvailabilityStatus() {
// Return unsupported when the service is disabled or not installed.
return getAccessibilityServiceInfo() == null ? DISABLED_UNSUPPORTED : AVAILABLE;
}
private AccessibilityServiceInfo getAccessibilityServiceInfo() {
final AccessibilityManager accessibilityManager = mContext.getSystemService(
AccessibilityManager.class);
final List<AccessibilityServiceInfo> serviceList =
accessibilityManager.getInstalledAccessibilityServiceList();
for (AccessibilityServiceInfo serviceInfo : serviceList) {
if (mComponentName.equals(serviceInfo.getComponentName())) {
return serviceInfo;
}
}
return null;
}
}

2
src/com/android/settings/slices/SettingsSliceProvider.java
View File

@@ -148,7 +148,7 @@ public class SettingsSliceProvider extends SliceProvider {
void loadSlice(Uri uri) {
long startBuildTime = System.currentTimeMillis();
SliceData sliceData = mSlicesDatabaseAccessor.getSliceDataFromUri(uri);
final SliceData sliceData = mSlicesDatabaseAccessor.getSliceDataFromUri(uri);
mSliceDataCache.put(uri, sliceData);
getContext().getContentResolver().notifyChange(uri, null /* content observer */);

18
src/com/android/settings/slices/SliceBuilderUtils.java
View File

@@ -113,13 +113,13 @@ public class SliceBuilderUtils {
* - key
* <p>
* Examples of valid paths are:
* - intent/wifi
* - intent/bluetooth
* - action/wifi
* - action/accessibility/servicename
* - /intent/wifi
* - /intent/bluetooth
* - /action/wifi
* - /action/accessibility/servicename
*
* @param uri of the Slice. Follows pattern outlined in {@link SettingsSliceProvider}.
* @return Pair whose first element {@code true} if the path is prepended with "action", and
* @return Pair whose first element {@code true} if the path is prepended with "intent", and
* second is a key.
*/
public static Pair<Boolean, String> getPathData(Uri uri) {
@@ -133,10 +133,10 @@ public class SliceBuilderUtils {
throw new IllegalArgumentException("Uri (" + uri + ") has incomplete path: " + path);
}
final boolean isInline = TextUtils.equals(SettingsSlicesContract.PATH_SETTING_ACTION,
final boolean isIntent = TextUtils.equals(SettingsSlicesContract.PATH_SETTING_INTENT,
split[1]);
return new Pair<>(isInline, split[2]);
return new Pair<>(isIntent, split[2]);
}
/**
@@ -215,8 +215,8 @@ public class SliceBuilderUtils {
static Intent getContentIntent(Context context, SliceData sliceData) {
final Uri contentUri = new Uri.Builder().appendPath(sliceData.getKey()).build();
final Intent intent = DatabaseIndexingUtils.buildSearchResultPageIntent(context,
sliceData.getFragmentClassName(), sliceData.getKey(), sliceData.getScreenTitle(),
0 /* TODO */);
sliceData.getFragmentClassName(), sliceData.getKey(),
sliceData.getScreenTitle().toString(), 0 /* TODO */);
intent.setClassName(context.getPackageName(), SubSettings.class.getName());
intent.setData(contentUri);
return intent;

8
src/com/android/settings/slices/SliceData.java
View File

@@ -57,7 +57,7 @@ public class SliceData {
private final String mSummary;
private final String mScreenTitle;
private final CharSequence mScreenTitle;
private final int mIconResource;
@@ -84,7 +84,7 @@ public class SliceData {
return mSummary;
}
public String getScreenTitle() {
public CharSequence getScreenTitle() {
return mScreenTitle;
}
@@ -146,7 +146,7 @@ public class SliceData {
private String mSummary;
private String mScreenTitle;
private CharSequence mScreenTitle;
private int mIconResource;
@@ -175,7 +175,7 @@ public class SliceData {
return this;
}
public Builder setScreenTitle(String screenTitle) {
public Builder setScreenTitle(CharSequence screenTitle) {
mScreenTitle = screenTitle;
return this;
}

74
src/com/android/settings/slices/SliceDataConverter.java
View File

@@ -23,7 +23,12 @@ import static com.android.settings.core.PreferenceXmlParserUtils.METADATA_PLATFO
import static com.android.settings.core.PreferenceXmlParserUtils.METADATA_SUMMARY;
import static com.android.settings.core.PreferenceXmlParserUtils.METADATA_TITLE;
import android.accessibilityservice.AccessibilityServiceInfo;
import android.content.ComponentName;
import android.content.Context;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.content.pm.ServiceInfo;
import android.content.res.Resources;
import android.content.res.XmlResourceParser;
import android.os.Bundle;
@@ -32,9 +37,14 @@ import android.text.TextUtils;
import android.util.AttributeSet;
import android.util.Log;
import android.util.Xml;
import android.view.accessibility.AccessibilityManager;
import com.android.settings.accessibility.AccessibilitySlicePreferenceController;
import com.android.settings.core.PreferenceXmlParserUtils;
import com.android.settings.core.PreferenceXmlParserUtils.MetadataFlag;
import com.android.internal.annotations.VisibleForTesting;
import com.android.settings.R;
import com.android.settings.accessibility.AccessibilitySettings;
import com.android.settings.dashboard.DashboardFragment;
import com.android.settings.overlay.FeatureFactory;
import com.android.settings.search.DatabaseIndexingUtils;
@@ -46,10 +56,16 @@ import org.xmlpull.v1.XmlPullParserException;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
/**
* Converts {@link DashboardFragment} to {@link SliceData}.
* Converts all Slice sources into {@link SliceData}.
* This includes:
* - All {@link DashboardFragment DashboardFragments} indexed by settings search
* - Accessibility services
*/
class SliceDataConverter {
@@ -101,6 +117,8 @@ class SliceDataConverter {
mSliceData.addAll(providerSliceData);
}
final List<SliceData> a11ySliceData = getAccessibilitySliceData();
mSliceData.addAll(a11ySliceData);
return mSliceData;
}
@@ -208,4 +226,58 @@ class SliceDataConverter {
}
return xmlSliceData;
}
private List<SliceData> getAccessibilitySliceData() {
final List<SliceData> sliceData = new ArrayList<>();
final String accessibilityControllerClassName =
AccessibilitySlicePreferenceController.class.getName();
final String fragmentClassName = AccessibilitySettings.class.getName();
final CharSequence screenTitle = mContext.getText(R.string.accessibility_settings);
final SliceData.Builder sliceDataBuilder = new SliceData.Builder()
.setFragmentName(fragmentClassName)
.setScreenTitle(screenTitle)
.setPreferenceControllerClassName(accessibilityControllerClassName);
final Set<String> a11yServiceNames = new HashSet<>();
Collections.addAll(a11yServiceNames, mContext.getResources()
.getStringArray(R.array.config_settings_slices_accessibility_components));
final List<AccessibilityServiceInfo> installedServices = getAccessibilityServiceInfoList();
final PackageManager packageManager = mContext.getPackageManager();
for (AccessibilityServiceInfo a11yServiceInfo : installedServices) {
final ResolveInfo resolveInfo = a11yServiceInfo.getResolveInfo();
final ServiceInfo serviceInfo = resolveInfo.serviceInfo;
final String packageName = serviceInfo.packageName;
final ComponentName componentName = new ComponentName(packageName, serviceInfo.name);
final String flattenedName = componentName.flattenToString();
if (!a11yServiceNames.contains(flattenedName)) {
continue;
}
final String title = resolveInfo.loadLabel(packageManager).toString();
int iconResource = resolveInfo.getIconResource();
if (iconResource == 0) {
iconResource = R.mipmap.ic_accessibility_generic;
}
sliceDataBuilder.setKey(flattenedName)
.setTitle(title)
.setIcon(iconResource)
.setSliceType(SliceData.SliceType.SWITCH);
sliceData.add(sliceDataBuilder.build());
}
return sliceData;
}
@VisibleForTesting
List<AccessibilityServiceInfo> getAccessibilityServiceInfoList() {
final AccessibilityManager accessibilityManager = AccessibilityManager.getInstance(
mContext);
return accessibilityManager.getInstalledAccessibilityServiceList();
}
}

6
src/com/android/settings/slices/SlicesDatabaseAccessor.java
View File

@@ -76,7 +76,7 @@ public class SlicesDatabaseAccessor {
*/
public SliceData getSliceDataFromKey(String key) {
Cursor cursor = getIndexedSliceData(key);
return buildSliceData(cursor, null /* uri */, false /* isInlineOnly */);
return buildSliceData(cursor, null /* uri */, false /* isIntentOnly */);
}
private Cursor getIndexedSliceData(String path) {
@@ -111,7 +111,7 @@ public class SlicesDatabaseAccessor {
.toString();
}
private SliceData buildSliceData(Cursor cursor, Uri uri, boolean isInlineOnly) {
private SliceData buildSliceData(Cursor cursor, Uri uri, boolean isIntentOnly) {
final String key = cursor.getString(cursor.getColumnIndex(IndexColumns.KEY));
final String title = cursor.getString(cursor.getColumnIndex(IndexColumns.TITLE));
final String summary = cursor.getString(cursor.getColumnIndex(IndexColumns.SUMMARY));
@@ -127,7 +127,7 @@ public class SlicesDatabaseAccessor {
int sliceType = cursor.getInt(
cursor.getColumnIndex(IndexColumns.SLICE_TYPE));
if (!isInlineOnly) {
if (isIntentOnly) {
sliceType = SliceData.SliceType.INTENT;
}

2
src/com/android/settings/slices/SlicesIndexer.java
View File

@@ -104,7 +104,7 @@ class SlicesIndexer implements Runnable {
values.put(IndexColumns.KEY, dataRow.getKey());
values.put(IndexColumns.TITLE, dataRow.getTitle());
values.put(IndexColumns.SUMMARY, dataRow.getSummary());
values.put(IndexColumns.SCREENTITLE, dataRow.getScreenTitle());
values.put(IndexColumns.SCREENTITLE, dataRow.getScreenTitle().toString());
values.put(IndexColumns.ICON_RESOURCE, dataRow.getIconResource());
values.put(IndexColumns.FRAGMENT, dataRow.getFragmentClassName());
values.put(IndexColumns.CONTROLLER, dataRow.getPreferenceController());