2013-02-08 10:09:55 +01:00
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/*
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This file is part of Subsonic.
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Subsonic is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Subsonic is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Subsonic. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2009 (C) Sindre Mehus
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*/
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2013-04-06 21:47:24 +02:00
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package com.thejoshwa.ultrasonic.androidapp.activity;
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2013-02-08 10:09:55 +01:00
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import android.app.Activity;
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import android.content.pm.PackageManager.NameNotFoundException;
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import android.os.Bundle;
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import android.util.Log;
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import android.view.KeyEvent;
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import android.view.View;
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import android.view.Window;
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import android.webkit.WebView;
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import android.webkit.WebViewClient;
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import android.widget.Button;
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2013-04-06 21:47:24 +02:00
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import com.thejoshwa.ultrasonic.androidapp.R;
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import com.thejoshwa.ultrasonic.androidapp.util.Util;
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2013-02-08 10:09:55 +01:00
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/**
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* An HTML-based help screen with Back and Done buttons at the bottom.
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*
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* @author Sindre Mehus
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*/
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public final class HelpActivity extends Activity {
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private static final String TAG = HelpActivity.class.getSimpleName();
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private WebView webView;
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private Button backButton;
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@Override
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protected void onCreate(Bundle bundle) {
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super.onCreate(bundle);
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getWindow().requestFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
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setContentView(R.layout.help);
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webView = (WebView) findViewById(R.id.help_contents);
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webView.getSettings().setJavaScriptEnabled(true);
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webView.setWebViewClient(new HelpClient());
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if (bundle != null) {
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webView.restoreState(bundle);
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} else {
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webView.loadUrl(getResources().getString(R.string.help_url));
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}
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backButton = (Button) findViewById(R.id.help_back);
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backButton.setOnClickListener(new Button.OnClickListener() {
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@Override
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public void onClick(View view) {
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webView.goBack();
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}
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});
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Button doneButton = (Button) findViewById(R.id.help_close);
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doneButton.setOnClickListener(new Button.OnClickListener() {
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@Override
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public void onClick(View view) {
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finish();
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}
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});
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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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}
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@Override
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protected void onSaveInstanceState(Bundle state) {
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webView.saveState(state);
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}
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@Override
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public boolean onKeyDown(int keyCode, KeyEvent event) {
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if (keyCode == KeyEvent.KEYCODE_BACK) {
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if (webView.canGoBack()) {
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webView.goBack();
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return true;
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}
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}
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return super.onKeyDown(keyCode, event);
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}
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private final class HelpClient extends WebViewClient {
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@Override
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public void onLoadResource(WebView webView, String url) {
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setProgressBarIndeterminateVisibility(true);
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setTitle(getResources().getString(R.string.help_loading));
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super.onLoadResource(webView, url);
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}
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@Override
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public void onPageFinished(WebView view, String url) {
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setProgressBarIndeterminateVisibility(false);
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String versionName = null;
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try {
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versionName = getPackageManager().getPackageInfo(getPackageName(), 0).versionName;
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} catch (NameNotFoundException e) {
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Log.e(TAG, e.getMessage(), e);
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}
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setTitle(view.getTitle() + " (" + versionName + ")");
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backButton.setEnabled(view.canGoBack());
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}
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@Override
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public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
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Util.toast(HelpActivity.this, description);
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}
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}
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}
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