| /* |
| * Copyright (C) 2017 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.internal.app; |
| |
| import android.accessibilityservice.AccessibilityServiceInfo; |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.app.Activity; |
| import android.app.AlertDialog; |
| import android.content.Context; |
| import android.content.res.TypedArray; |
| import android.graphics.drawable.Drawable; |
| import android.os.Bundle; |
| import android.provider.Settings; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.view.Window; |
| import android.view.accessibility.AccessibilityManager; |
| import android.widget.BaseAdapter; |
| import android.widget.ImageView; |
| import android.widget.TextView; |
| |
| import com.android.internal.R; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| /** |
| * Activity used to display and persist a service or feature target for the Accessibility button. |
| */ |
| public class AccessibilityButtonChooserActivity extends Activity { |
| |
| private static final String MAGNIFICATION_COMPONENT_ID = |
| "com.android.server.accessibility.MagnificationController"; |
| |
| private AccessibilityButtonTarget mMagnificationTarget = null; |
| |
| private List<AccessibilityButtonTarget> mTargets = null; |
| |
| private AlertDialog mAlertDialog; |
| |
| @Override |
| protected void onCreate(@Nullable Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| |
| final TypedArray theme = getTheme().obtainStyledAttributes(android.R.styleable.Theme); |
| if (!theme.getBoolean(android.R.styleable.Theme_windowNoTitle, /* defValue= */false)) { |
| requestWindowFeature(Window.FEATURE_NO_TITLE); |
| } |
| |
| // TODO(b/146815874): Will replace it with white list services |
| mMagnificationTarget = new AccessibilityButtonTarget(this, MAGNIFICATION_COMPONENT_ID, |
| R.string.accessibility_magnification_chooser_text, |
| R.drawable.ic_accessibility_magnification); |
| |
| // TODO(b/146815544): Will use shortcut type or button type to get the corresponding |
| // services |
| mTargets = getServiceAccessibilityButtonTargets(this); |
| if (Settings.Secure.getInt(getContentResolver(), |
| Settings.Secure.ACCESSIBILITY_DISPLAY_MAGNIFICATION_NAVBAR_ENABLED, 0) == 1) { |
| mTargets.add(mMagnificationTarget); |
| } |
| |
| // TODO(b/146815548): Will add title to separate which one type |
| mAlertDialog = new AlertDialog.Builder(this) |
| .setAdapter(new TargetAdapter(), |
| (dialog, position) -> onTargetSelected(mTargets.get(position))) |
| .setOnDismissListener(dialog -> finish()) |
| .create(); |
| mAlertDialog.show(); |
| } |
| |
| @Override |
| protected void onDestroy() { |
| mAlertDialog.dismiss(); |
| super.onDestroy(); |
| } |
| |
| private static List<AccessibilityButtonTarget> getServiceAccessibilityButtonTargets( |
| @NonNull Context context) { |
| AccessibilityManager ams = (AccessibilityManager) context.getSystemService( |
| Context.ACCESSIBILITY_SERVICE); |
| List<AccessibilityServiceInfo> services = ams.getEnabledAccessibilityServiceList( |
| AccessibilityServiceInfo.FEEDBACK_ALL_MASK); |
| if (services == null) { |
| return Collections.emptyList(); |
| } |
| |
| ArrayList<AccessibilityButtonTarget> targets = new ArrayList<>(services.size()); |
| for (AccessibilityServiceInfo info : services) { |
| if ((info.flags & AccessibilityServiceInfo.FLAG_REQUEST_ACCESSIBILITY_BUTTON) != 0) { |
| targets.add(new AccessibilityButtonTarget(context, info)); |
| } |
| } |
| |
| return targets; |
| } |
| |
| private void onTargetSelected(AccessibilityButtonTarget target) { |
| Settings.Secure.putString(getContentResolver(), |
| Settings.Secure.ACCESSIBILITY_BUTTON_TARGET_COMPONENT, target.getId()); |
| finish(); |
| } |
| |
| private class TargetAdapter extends BaseAdapter { |
| @Override |
| public int getCount() { |
| return mTargets.size(); |
| } |
| |
| @Override |
| public Object getItem(int position) { |
| return null; |
| } |
| |
| @Override |
| public long getItemId(int position) { |
| return position; |
| } |
| |
| @Override |
| public View getView(int position, View convertView, ViewGroup parent) { |
| LayoutInflater inflater = AccessibilityButtonChooserActivity.this.getLayoutInflater(); |
| View root = inflater.inflate(R.layout.accessibility_button_chooser_item, parent, false); |
| final AccessibilityButtonTarget target = mTargets.get(position); |
| ImageView iconView = root.findViewById(R.id.accessibility_button_target_icon); |
| TextView labelView = root.findViewById(R.id.accessibility_button_target_label); |
| iconView.setImageDrawable(target.getDrawable()); |
| labelView.setText(target.getLabel()); |
| |
| // TODO(b/146815874): Need to get every service status to update UI |
| return root; |
| } |
| } |
| |
| private static class AccessibilityButtonTarget { |
| public String mId; |
| public CharSequence mLabel; |
| public Drawable mDrawable; |
| // TODO(b/146815874): Will add fragment type and related functions |
| public AccessibilityButtonTarget(@NonNull Context context, |
| @NonNull AccessibilityServiceInfo serviceInfo) { |
| this.mId = serviceInfo.getComponentName().flattenToString(); |
| this.mLabel = serviceInfo.getResolveInfo().loadLabel(context.getPackageManager()); |
| this.mDrawable = serviceInfo.getResolveInfo().loadIcon(context.getPackageManager()); |
| } |
| |
| public AccessibilityButtonTarget(Context context, @NonNull String id, int labelResId, |
| int iconRes) { |
| this.mId = id; |
| this.mLabel = context.getText(labelResId); |
| this.mDrawable = context.getDrawable(iconRes); |
| } |
| |
| public String getId() { |
| return mId; |
| } |
| |
| public CharSequence getLabel() { |
| return mLabel; |
| } |
| |
| public Drawable getDrawable() { |
| return mDrawable; |
| } |
| } |
| } |