| /** |
| * Copyright (c) 2014, Google Inc. |
| * |
| * 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.mail.ui; |
| |
| import android.annotation.TargetApi; |
| import android.app.Activity; |
| import android.app.AlertDialog; |
| import android.app.Dialog; |
| import android.app.DialogFragment; |
| import android.app.Fragment; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.net.Uri; |
| import android.os.Bundle; |
| import android.print.PrintAttributes; |
| import android.print.PrintDocumentAdapter; |
| import android.print.PrintManager; |
| import androidx.print.PrintHelper; |
| import android.text.TextUtils; |
| import android.view.LayoutInflater; |
| import android.view.Menu; |
| import android.view.MenuInflater; |
| import android.view.MenuItem; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.webkit.WebView; |
| import android.webkit.WebViewClient; |
| |
| import com.android.mail.R; |
| |
| import java.util.Calendar; |
| |
| /** |
| * This fragment shows the Help screen. |
| */ |
| public final class HelpFragment extends Fragment { |
| |
| /** Displays the copyright information, privacy policy or open source licenses. */ |
| private WebView mWebView; |
| |
| // Public no-args constructor needed for fragment re-instantiation |
| public HelpFragment() { |
| } |
| |
| @Override |
| public void onActivityCreated(Bundle savedInstanceState) { |
| super.onActivityCreated(savedInstanceState); |
| |
| final Uri helpUri = getActivity().getIntent() |
| .getParcelableExtra(HelpActivity.PARAM_HELP_URL); |
| mWebView.loadUrl(helpUri.toString()); |
| } |
| |
| @Override |
| public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle state) { |
| setHasOptionsMenu(true); |
| |
| final View view = inflater.inflate(R.layout.help_fragment, container, false); |
| if (view != null) { |
| mWebView = (WebView) view.findViewById(R.id.webview); |
| mWebView.setWebViewClient(new WebViewClient()); |
| if (state != null) { |
| mWebView.restoreState(state); |
| } |
| } |
| |
| return view; |
| } |
| |
| @Override |
| public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { |
| inflater.inflate(R.menu.help_menu, menu); |
| |
| // if we have no play store URI, hide that menu item |
| final MenuItem viewAppUrlMenuItem = menu.findItem(R.id.view_app_url); |
| if (viewAppUrlMenuItem != null) { |
| final String appUrl = getString(R.string.app_url); |
| viewAppUrlMenuItem.setVisible(!TextUtils.isEmpty(appUrl)); |
| } |
| |
| // printing the content of the webview is only allowed if running on Kitkat or later |
| final MenuItem printItem = menu.findItem(R.id.print_dialog); |
| if (printItem != null) { |
| printItem.setVisible(PrintHelper.systemSupportsPrint()); |
| } |
| } |
| |
| @Override |
| public boolean onOptionsItemSelected(MenuItem item) { |
| final int itemId = item.getItemId(); |
| if (itemId == android.R.id.home) { |
| final Activity activity = getActivity(); |
| if (activity != null) { |
| activity.finish(); |
| } |
| return true; |
| } else if (itemId == R.id.view_app_url) { |
| showAppUrl(); |
| return true; |
| } else if (itemId == R.id.print_dialog) { |
| print(); |
| return true; |
| } else if (itemId == R.id.copyright_information) { |
| showCopyrightInformation(); |
| return true; |
| } else if (itemId == R.id.open_source_licenses) { |
| showOpenSourceLicenses(); |
| return true; |
| } else if (itemId == R.id.privacy_policy) { |
| showPrivacyPolicy(); |
| return true; |
| } |
| return super.onOptionsItemSelected(item); |
| } |
| |
| @TargetApi(19) |
| private void print() { |
| // pick a name for the print job we will create |
| final String title = getActivity().getActionBar().getTitle().toString(); |
| final String jobName = getString(R.string.print_job_name, title); |
| |
| // ask the webview for a print adapter |
| final PrintDocumentAdapter pda = mWebView.createPrintDocumentAdapter(); |
| |
| // ask the print manager to print the contents of the webview using the job name |
| final PrintManager pm = (PrintManager) getActivity(). |
| getSystemService(Context.PRINT_SERVICE); |
| pm.print(jobName, pda, new PrintAttributes.Builder().build()); |
| } |
| |
| private void showAppUrl() { |
| final Uri uri = Uri.parse(getString(R.string.app_url)); |
| final Intent intent = new Intent(Intent.ACTION_VIEW, uri); |
| startActivity(intent); |
| } |
| |
| private void showCopyrightInformation() { |
| new CopyrightDialogFragment().show(getFragmentManager(), "copyright"); |
| } |
| |
| private void showOpenSourceLicenses() { |
| final Context context = getActivity(); |
| final Intent intent = new Intent(context, LicensesActivity.class); |
| context.startActivity(intent); |
| } |
| |
| private void showPrivacyPolicy() { |
| final Uri uri = Uri.parse(getString(R.string.privacy_policy_uri)); |
| final Intent i = new Intent(Intent.ACTION_VIEW, uri); |
| startActivity(i); |
| } |
| |
| public static class CopyrightDialogFragment extends DialogFragment { |
| |
| public CopyrightDialogFragment() { |
| } |
| |
| @Override |
| public Dialog onCreateDialog(Bundle savedInstanceState) { |
| // generate and display a copyright statement resembling "© Google 2014" |
| final int year = Calendar.getInstance().get(Calendar.YEAR); |
| final String copyright = getString(R.string.copyright, year); |
| |
| return new AlertDialog.Builder(getActivity()) |
| .setMessage(copyright) |
| .setNegativeButton(R.string.cancel, null).create(); |
| } |
| } |
| } |