Implementing print settings as per UX spec.
Change-Id: Iafe99a1e959472f893cf168d952d9dd19ff160c0
This commit is contained in:
Svetoslav
committed by
Svetoslav Ganov
Svetoslav Ganov
parent
a2904f9d50
commit
2d53165359
286
src/com/android/settings/print/PrintSettingsFragment.java
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286
src/com/android/settings/print/PrintSettingsFragment.java
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/*
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* Copyright (C) 2013 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.print;
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import android.content.ComponentName;
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import android.content.ContentResolver;
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import android.content.Context;
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import android.content.Intent;
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import android.content.pm.PackageManager;
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import android.content.pm.ResolveInfo;
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import android.database.ContentObserver;
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import android.net.Uri;
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import android.os.Bundle;
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import android.os.Handler;
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import android.os.Message;
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import android.preference.Preference;
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import android.preference.PreferenceScreen;
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import android.printservice.PrintServiceInfo;
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import android.provider.Settings;
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import android.text.TextUtils;
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import android.view.Menu;
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import android.view.MenuInflater;
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import android.view.MenuItem;
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import android.view.View;
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import android.widget.Switch;
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import android.widget.TextView;
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import com.android.internal.content.PackageMonitor;
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import com.android.settings.DialogCreatable;
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import com.android.settings.R;
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import com.android.settings.SettingsPreferenceFragment;
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import java.util.List;
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/**
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* Fragment with the top level print settings.
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*/
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public class PrintSettingsFragment extends SettingsPreferenceFragment implements DialogCreatable {
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static final char ENABLED_PRINT_SERVICES_SEPARATOR = ':';
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// Extras passed to sub-fragments.
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static final String EXTRA_PREFERENCE_KEY = "preference_key";
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static final String EXTRA_CHECKED = "checked";
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static final String EXTRA_TITLE = "title";
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static final String EXTRA_ENABLE_WARNING_TITLE = "enable_warning_title";
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static final String EXTRA_ENABLE_WARNING_MESSAGE = "enable_warning_message";
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static final String EXTRA_SETTINGS_TITLE = "settings_title";
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static final String EXTRA_SETTINGS_COMPONENT_NAME = "settings_component_name";
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static final String EXTRA_ADD_PRINTERS_TITLE = "add_printers_title";
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static final String EXTRA_ADD_PRINTERS_COMPONENT_NAME = "add_printers_component_name";
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static final String EXTRA_SERVICE_COMPONENT_NAME = "service_component_name";
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private final PackageMonitor mSettingsPackageMonitor = new SettingsPackageMonitor();
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private final Handler mHandler = new Handler() {
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@Override
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public void dispatchMessage(Message msg) {
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updateServicesPreferences();
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}
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};
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private final SettingsContentObserver mSettingsContentObserver =
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new SettingsContentObserver(mHandler) {
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@Override
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public void onChange(boolean selfChange, Uri uri) {
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updateServicesPreferences();
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}
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};
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private Preference mNoServicesMessagePreference;
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@Override
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public void onCreate(Bundle icicle) {
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super.onCreate(icicle);
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addPreferencesFromResource(R.xml.print_settings);
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getActivity().getActionBar().setTitle(R.string.print_settings_title);
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}
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@Override
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public void onResume() {
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super.onResume();
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mSettingsPackageMonitor.register(getActivity(), getActivity().getMainLooper(), false);
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mSettingsContentObserver.register(getContentResolver());
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updateServicesPreferences();
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setHasOptionsMenu(true);
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}
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@Override
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public void onPause() {
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mSettingsPackageMonitor.unregister();
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mSettingsContentObserver.unregister(getContentResolver());
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super.onPause();
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}
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@Override
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public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
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super.onCreateOptionsMenu(menu, inflater);
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inflater.inflate(R.menu.print_settings, menu);
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MenuItem menuItem = menu.findItem(R.id.print_menu_item_download_print_service);
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menuItem.setIntent(new Intent(Intent.ACTION_VIEW,
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Uri.parse(getString(R.string.download_print_service_query))));
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}
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private void updateServicesPreferences() {
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// Since services category is auto generated we have to do a pass
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// to generate it since services can come and go.
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getPreferenceScreen().removeAll();
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List<ComponentName> enabledServices = SettingsUtils
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.readEnabledPrintServices(getActivity());
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List<ResolveInfo> installedServices = getActivity().getPackageManager()
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.queryIntentServices(
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new Intent(android.printservice.PrintService.SERVICE_INTERFACE),
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PackageManager.GET_SERVICES | PackageManager.GET_META_DATA);
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final int installedServiceCount = installedServices.size();
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for (int i = 0; i < installedServiceCount; i++) {
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ResolveInfo installedService = installedServices.get(i);
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PreferenceScreen preference = getPreferenceManager().createPreferenceScreen(
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getActivity());
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String title = installedService.loadLabel(getPackageManager()).toString();
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preference.setTitle(title);
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ComponentName componentName = new ComponentName(
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installedService.serviceInfo.packageName,
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installedService.serviceInfo.name);
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preference.setKey(componentName.flattenToString());
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preference.setOrder(i);
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preference.setFragment(PrintServiceSettingsFragment.class.getName());
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preference.setPersistent(false);
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final boolean serviceEnabled = enabledServices.contains(componentName);
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if (serviceEnabled) {
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preference.setSummary(getString(R.string.print_feature_state_on));
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} else {
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preference.setSummary(getString(R.string.print_feature_state_off));
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}
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Bundle extras = preference.getExtras();
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extras.putString(EXTRA_PREFERENCE_KEY, preference.getKey());
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extras.putBoolean(EXTRA_CHECKED, serviceEnabled);
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extras.putString(EXTRA_TITLE, title);
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PrintServiceInfo printServiceInfo = PrintServiceInfo.create(
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installedService, getActivity());
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CharSequence applicationLabel = installedService.loadLabel(getPackageManager());
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extras.putString(EXTRA_ENABLE_WARNING_TITLE, getString(
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R.string.print_service_security_warning_title, applicationLabel));
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extras.putString(EXTRA_ENABLE_WARNING_MESSAGE, getString(
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R.string.print_service_security_warning_summary, applicationLabel));
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String settingsClassName = printServiceInfo.getSettingsActivityName();
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if (!TextUtils.isEmpty(settingsClassName)) {
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extras.putString(EXTRA_SETTINGS_TITLE,
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getString(R.string.print_menu_item_settings));
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extras.putString(EXTRA_SETTINGS_COMPONENT_NAME,
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new ComponentName(installedService.serviceInfo.packageName,
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settingsClassName).flattenToString());
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}
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String addPrinterClassName = printServiceInfo.getAddPrintersActivityName();
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if (!TextUtils.isEmpty(addPrinterClassName)) {
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extras.putString(EXTRA_ADD_PRINTERS_TITLE,
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getString(R.string.print_menu_item_add_printers));
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extras.putString(EXTRA_ADD_PRINTERS_COMPONENT_NAME,
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new ComponentName(installedService.serviceInfo.packageName,
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addPrinterClassName).flattenToString());
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}
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extras.putString(EXTRA_SERVICE_COMPONENT_NAME, componentName.flattenToString());
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getPreferenceScreen().addPreference(preference);
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}
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if (getPreferenceScreen().getPreferenceCount() == 0) {
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if (mNoServicesMessagePreference == null) {
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mNoServicesMessagePreference = new Preference(getActivity()) {
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@Override
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protected void onBindView(View view) {
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super.onBindView(view);
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TextView summaryView = (TextView) view.findViewById(R.id.summary);
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String title = getString(R.string.print_no_services_installed);
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summaryView.setText(title);
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}
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};
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mNoServicesMessagePreference.setPersistent(false);
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mNoServicesMessagePreference.setLayoutResource(
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R.layout.text_description_preference);
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mNoServicesMessagePreference.setSelectable(false);
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}
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getPreferenceScreen().addPreference(mNoServicesMessagePreference);
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}
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}
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private class SettingsPackageMonitor extends PackageMonitor {
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@Override
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public void onPackageAdded(String packageName, int uid) {
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mHandler.obtainMessage().sendToTarget();
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}
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@Override
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public void onPackageAppeared(String packageName, int reason) {
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mHandler.obtainMessage().sendToTarget();
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}
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@Override
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public void onPackageDisappeared(String packageName, int reason) {
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mHandler.obtainMessage().sendToTarget();
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}
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@Override
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public void onPackageRemoved(String packageName, int uid) {
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mHandler.obtainMessage().sendToTarget();
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}
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}
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public static class ToggleSwitch extends Switch {
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private OnBeforeCheckedChangeListener mOnBeforeListener;
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public static interface OnBeforeCheckedChangeListener {
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public boolean onBeforeCheckedChanged(ToggleSwitch toggleSwitch, boolean checked);
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}
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public ToggleSwitch(Context context) {
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super(context);
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}
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public void setOnBeforeCheckedChangeListener(OnBeforeCheckedChangeListener listener) {
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mOnBeforeListener = listener;
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}
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@Override
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public void setChecked(boolean checked) {
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if (mOnBeforeListener != null
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&& mOnBeforeListener.onBeforeCheckedChanged(this, checked)) {
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return;
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}
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super.setChecked(checked);
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}
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public void setCheckedInternal(boolean checked) {
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super.setChecked(checked);
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}
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}
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private static abstract class SettingsContentObserver extends ContentObserver {
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public SettingsContentObserver(Handler handler) {
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super(handler);
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}
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public void register(ContentResolver contentResolver) {
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contentResolver.registerContentObserver(Settings.Secure.getUriFor(
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Settings.Secure.ENABLED_PRINT_SERVICES), false, this);
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}
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public void unregister(ContentResolver contentResolver) {
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contentResolver.unregisterContentObserver(this);
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}
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@Override
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public abstract void onChange(boolean selfChange, Uri uri);
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}
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}
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