1 files changed, 117 insertions, 0 deletions
diff --git a/subsonic-android/src/net/sourceforge/subsonic/androidapp/activity/HelpActivity.java b/subsonic-android/src/net/sourceforge/subsonic/androidapp/activity/HelpActivity.java
new file mode 100644
index 00000000..4b2eb63b
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+++ b/subsonic-android/src/net/sourceforge/subsonic/androidapp/activity/HelpActivity.java
@@ -0,0 +1,117 @@
+/*
+ This file is part of Subsonic.
+
+ Subsonic is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ Subsonic is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Subsonic.  If not, see <http://www.gnu.org/licenses/>.
+
+ Copyright 2009 (C) Sindre Mehus
+ */
+
+package net.sourceforge.subsonic.androidapp.activity;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.view.KeyEvent;
+import android.view.View;
+import android.view.Window;
+import android.webkit.WebView;
+import android.webkit.WebViewClient;
+import android.widget.Button;
+import net.sourceforge.subsonic.androidapp.R;
+import net.sourceforge.subsonic.androidapp.util.Util;
+
+/**
+ * An HTML-based help screen with Back and Done buttons at the bottom.
+ *
+ * @author Sindre Mehus
+ */
+public final class HelpActivity extends Activity {
+
+    private WebView webView;
+    private Button backButton;
+
+    @Override
+    protected void onCreate(Bundle bundle) {
+        super.onCreate(bundle);
+        getWindow().requestFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
+
+        setContentView(R.layout.help);
+
+        webView = (WebView) findViewById(R.id.help_contents);
+        webView.getSettings().setJavaScriptEnabled(true);
+        webView.setWebViewClient(new HelpClient());
+        if (bundle != null) {
+            webView.restoreState(bundle);
+        } else {
+            webView.loadUrl(getResources().getString(R.string.help_url));
+        }
+
+        backButton = (Button) findViewById(R.id.help_back);
+        backButton.setOnClickListener(new Button.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                webView.goBack();
+            }
+        });
+
+        Button doneButton = (Button) findViewById(R.id.help_close);
+        doneButton.setOnClickListener(new Button.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                finish();
+            }
+        });
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+    }
+
+    @Override
+    protected void onSaveInstanceState(Bundle state) {
+        webView.saveState(state);
+    }
+
+    @Override
+    public boolean onKeyDown(int keyCode, KeyEvent event) {
+        if (keyCode == KeyEvent.KEYCODE_BACK) {
+            if (webView.canGoBack()) {
+                webView.goBack();
+                return true;
+            }
+        }
+        return super.onKeyDown(keyCode, event);
+    }
+
+    private final class HelpClient extends WebViewClient {
+        @Override
+        public void onLoadResource(WebView webView, String url) {
+            setProgressBarIndeterminateVisibility(true);
+            setTitle(getResources().getString(R.string.help_loading));
+            super.onLoadResource(webView, url);
+        }
+
+        @Override
+        public void onPageFinished(WebView view, String url) {
+            setProgressBarIndeterminateVisibility(false);
+            setTitle(view.getTitle());
+            backButton.setEnabled(view.canGoBack());
+        }
+
+        @Override
+        public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
+            Util.toast(HelpActivity.this, description);
+        }
+    }
+}