Add policy transparency to app notification settings on lockscreen.
Bug: 28390118 Change-Id: I395440b0f7e93da90f9f346574afa5501761d473
This commit is contained in:
Sudheer Shanka
@@ -0,0 +1,250 @@
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/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings.notification;
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import android.content.Context;
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import android.graphics.drawable.Drawable;
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import android.support.v7.preference.DropDownPreference;
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import android.support.v7.preference.PreferenceViewHolder;
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import android.util.AttributeSet;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.AdapterView;
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import android.widget.AdapterView.OnItemSelectedListener;
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import android.widget.ArrayAdapter;
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import android.widget.Spinner;
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import android.widget.TextView;
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import com.android.settings.R;
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import com.android.settingslib.RestrictedLockUtils;
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import com.android.settingslib.RestrictedLockUtils.EnforcedAdmin;
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import com.android.settingslib.RestrictedPreferenceHelper;
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import java.util.ArrayList;
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import java.util.List;
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public class RestrictedDropDownPreference extends DropDownPreference {
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private final RestrictedPreferenceHelper mHelper;
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private ReselectionSpinner mSpinner;
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private List<RestrictedItem> mRestrictedItems = new ArrayList<>();
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private boolean mUserClicked = false;
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public RestrictedDropDownPreference(Context context, AttributeSet attrs) {
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super(context, attrs);
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setLayoutResource(R.layout.restricted_preference_dropdown);
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setWidgetLayoutResource(R.layout.restricted_icon);
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mHelper = new RestrictedPreferenceHelper(context, this, attrs);
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}
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@Override
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protected ArrayAdapter createAdapter() {
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return new RestrictedArrayItemAdapter(getContext());
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}
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@Override
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public void setValue(String value) {
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if (getRestrictedItemForEntryValue(value) != null) {
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return;
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}
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super.setValue(value);
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}
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@Override
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public void onBindViewHolder(PreferenceViewHolder view) {
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mSpinner = (ReselectionSpinner) view.itemView.findViewById(R.id.spinner);
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mSpinner.setPreference(this);
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super.onBindViewHolder(view);
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mHelper.onBindViewHolder(view);
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mSpinner.setOnItemSelectedListener(mItemSelectedListener);
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final View restrictedIcon = view.findViewById(R.id.restricted_icon);
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if (restrictedIcon != null) {
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restrictedIcon.setVisibility(isDisabledByAdmin() ? View.VISIBLE : View.GONE);
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}
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}
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private boolean isRestrictedForEntry(CharSequence entry) {
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if (entry == null) {
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return false;
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}
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for (RestrictedItem item : mRestrictedItems) {
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if (entry.equals(item.entry)) {
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return true;
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}
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}
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return false;
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}
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private RestrictedItem getRestrictedItemForEntryValue(CharSequence entryValue) {
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if (entryValue == null) {
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return null;
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}
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for (RestrictedItem item : mRestrictedItems) {
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if (entryValue.equals(item.entryValue)) {
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return item;
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}
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}
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return null;
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}
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private RestrictedItem getRestrictedItemForPosition(int position) {
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if (position < 0 || position >= getEntryValues().length) {
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return null;
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}
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CharSequence entryValue = getEntryValues()[position];
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return getRestrictedItemForEntryValue(entryValue);
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}
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public void addRestrictedItem(RestrictedItem item) {
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mRestrictedItems.add(item);
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}
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public void clearRestrictedItems() {
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mRestrictedItems.clear();
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}
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@Override
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public void performClick() {
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if (!mHelper.performClick()) {
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mUserClicked = true;
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super.performClick();
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}
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}
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@Override
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public void setEnabled(boolean enabled) {
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if (enabled && isDisabledByAdmin()) {
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mHelper.setDisabledByAdmin(null);
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return;
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}
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super.setEnabled(enabled);
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}
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public void setDisabledByAdmin(EnforcedAdmin admin) {
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if (mHelper.setDisabledByAdmin(admin)) {
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notifyChanged();
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}
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}
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public boolean isDisabledByAdmin() {
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return mHelper.isDisabledByAdmin();
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}
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private void setUserClicked(boolean userClicked) {
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mUserClicked = userClicked;
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}
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private boolean isUserClicked() {
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return mUserClicked;
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}
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private final OnItemSelectedListener mItemSelectedListener = new OnItemSelectedListener() {
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@Override
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public void onItemSelected(AdapterView<?> parent, View v, int position, long id) {
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if (mUserClicked) {
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mUserClicked = false;
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} else {
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return;
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}
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if (position >= 0 && position < getEntryValues().length) {
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String value = getEntryValues()[position].toString();
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RestrictedItem item = getRestrictedItemForEntryValue(value);
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if (item != null) {
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RestrictedLockUtils.sendShowAdminSupportDetailsIntent(getContext(),
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item.enforcedAdmin);
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mSpinner.setSelection(findIndexOfValue(getValue()));
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} else if (!value.equals(getValue()) && callChangeListener(value)) {
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setValue(value);
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}
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}
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}
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@Override
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public void onNothingSelected(AdapterView<?> parent) {
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// noop
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}
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};
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/**
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* Extension of {@link ArrayAdapter} which updates the state of the dropdown item
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* depending on whether it is restricted by the admin.
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*/
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private class RestrictedArrayItemAdapter extends ArrayAdapter<String> {
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private static final int TEXT_RES_ID = android.R.id.text1;
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public RestrictedArrayItemAdapter(Context context) {
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super(context, R.layout.spinner_dropdown_restricted_item, TEXT_RES_ID);
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}
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@Override
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public View getDropDownView(int position, View convertView, ViewGroup parent) {
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View rootView = super.getView(position, convertView, parent);
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CharSequence entry = getItem(position);
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boolean isEntryRestricted = isRestrictedForEntry(entry);
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TextView text = (TextView) rootView.findViewById(TEXT_RES_ID);
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if (text != null) {
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text.setEnabled(!isEntryRestricted);
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}
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View restrictedIcon = rootView.findViewById(R.id.restricted_icon);
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if (restrictedIcon != null) {
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restrictedIcon.setVisibility(isEntryRestricted ? View.VISIBLE : View.GONE);
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}
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return rootView;
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}
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}
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/**
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* Extension of {@link Spinner} which triggers the admin support dialog on user clicking a
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* restricted item even if was already selected.
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*/
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public static class ReselectionSpinner extends Spinner {
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private RestrictedDropDownPreference pref;
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public ReselectionSpinner(Context context, AttributeSet attrs) {
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super(context, attrs);
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}
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public void setPreference(RestrictedDropDownPreference pref) {
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this.pref = pref;
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}
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@Override
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public void setSelection(int position) {
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int previousSelectedPosition = getSelectedItemPosition();
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super.setSelection(position);
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if (position == previousSelectedPosition && pref.isUserClicked()) {
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pref.setUserClicked(false);
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RestrictedItem item = pref.getRestrictedItemForPosition(position);
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if (item != null) {
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RestrictedLockUtils.sendShowAdminSupportDetailsIntent(getContext(),
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item.enforcedAdmin);
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}
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}
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}
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}
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public static class RestrictedItem {
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public final CharSequence entry;
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public final CharSequence entryValue;
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public final EnforcedAdmin enforcedAdmin;
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public RestrictedItem(CharSequence entry, CharSequence entryValue,
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EnforcedAdmin enforcedAdmin) {
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this.entry = entry;
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this.entryValue = entryValue;
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this.enforcedAdmin = enforcedAdmin;
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}
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}
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}
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