Add restricted padlock support for listpreference.
Change-Id: I1f3284a474d225df803abd57dd71382cb1dfa659
This commit is contained in:
Sudheer Shanka
227
src/com/android/settings/RestrictedListPreference.java
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227
src/com/android/settings/RestrictedListPreference.java
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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;
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import android.app.AlertDialog;
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import android.content.Context;
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import android.content.DialogInterface;
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import android.os.Bundle;
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import android.support.v14.preference.ListPreferenceDialogFragment;
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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.ArrayAdapter;
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import android.widget.CheckedTextView;
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import android.widget.ImageView;
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import android.widget.ListAdapter;
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import com.android.settingslib.RestrictedLockUtils;
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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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import static com.android.settingslib.RestrictedLockUtils.EnforcedAdmin;
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public class RestrictedListPreference extends CustomListPreference {
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private final RestrictedPreferenceHelper mHelper;
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private final List<RestrictedItem> mRestrictedItems = new ArrayList<>();
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public RestrictedListPreference(Context context, AttributeSet attrs) {
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super(context, attrs);
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mHelper = new RestrictedPreferenceHelper(context, this, attrs);
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}
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public RestrictedListPreference(Context context, AttributeSet attrs,
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int defStyleAttr, int defStyleRes) {
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super(context, attrs, defStyleAttr, defStyleRes);
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mHelper = new RestrictedPreferenceHelper(context, this, attrs);
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}
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@Override
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public void onBindViewHolder(PreferenceViewHolder holder) {
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super.onBindViewHolder(holder);
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mHelper.onBindViewHolder(holder);
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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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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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public 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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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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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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protected ListAdapter createListAdapter() {
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final String selectedValue = getValue();
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final int selectedIndex =
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(selectedValue == null) ? -1 : findIndexOfValue(selectedValue);
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return new RestrictedArrayAdapter(getContext(), getEntries(), selectedIndex);
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}
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@Override
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protected void onPrepareDialogBuilder(AlertDialog.Builder builder,
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DialogInterface.OnClickListener listener) {
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builder.setAdapter(createListAdapter(), listener);
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}
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public class RestrictedArrayAdapter extends ArrayAdapter<CharSequence> {
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private final int mSelectedIndex;
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public RestrictedArrayAdapter(Context context, CharSequence[] objects, int selectedIndex) {
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super(context, R.layout.restricted_dialog_singlechoice, R.id.text1, objects);
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mSelectedIndex = selectedIndex;
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}
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@Override
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public View getView(int position, View convertView, ViewGroup parent) {
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View root = super.getView(position, convertView, parent);
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CharSequence entry = getItem(position);
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CheckedTextView text = (CheckedTextView) root.findViewById(R.id.text1);
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ImageView padlock = (ImageView) root.findViewById(R.id.restricted_lock_icon);
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if (isRestrictedForEntry(entry)) {
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text.setEnabled(false);
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padlock.setVisibility(View.VISIBLE);
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} else {
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if (position == mSelectedIndex) {
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text.setChecked(true);
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}
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text.setEnabled(true);
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padlock.setVisibility(View.GONE);
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}
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return root;
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}
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@Override
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public boolean hasStableIds() {
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return true;
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}
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@Override
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public long getItemId(int position) {
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return position;
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}
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}
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public static class RestrictedListPreferenceDialogFragment extends
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CustomListPreference.CustomListPreferenceDialogFragment {
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public static ListPreferenceDialogFragment newInstance(String key) {
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final ListPreferenceDialogFragment fragment
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= new RestrictedListPreferenceDialogFragment();
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final Bundle b = new Bundle(1);
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b.putString(ARG_KEY, key);
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fragment.setArguments(b);
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return fragment;
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}
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private RestrictedListPreference getCustomizablePreference() {
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return (RestrictedListPreference) getPreference();
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}
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@Override
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protected DialogInterface.OnClickListener getOnItemClickListener() {
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return new DialogInterface.OnClickListener() {
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public void onClick(DialogInterface dialog, int which) {
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final RestrictedListPreference preference = getCustomizablePreference();
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if (which < 0 || which >= preference.getEntryValues().length) {
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return;
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}
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String entryValue = preference.getEntryValues()[which].toString();
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RestrictedItem item = preference.getRestrictedItemForEntryValue(entryValue);
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if (item != null) {
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RestrictedLockUtils.sendShowAdminSupportDetailsIntent(getContext(),
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item.enforcedAdmin);
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} else {
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setClickedDialogEntryIndex(which);
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}
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/*
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* Clicking on an item simulates the positive button
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* click, and dismisses the dialog.
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*/
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RestrictedListPreferenceDialogFragment.this.onClick(dialog,
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DialogInterface.BUTTON_POSITIVE);
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dialog.dismiss();
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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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