Expose dialog for current webview setting.

Change-Id: I91c796b2c75c0ac8047ba0c2555a1036e8c6c616
Fixes: 28554048

1 files changed, 113 insertions, 0 deletions

diff --git a/src/com/android/settings/WebViewImplementation.java b/src/com/android/settings/WebViewImplementation.java
new file mode 100644
index 0000000000..c949a39e35
--- /dev/null
+++ b/src/com/android/settings/WebViewImplementation.java
@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * 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.settings;
+
+import android.annotation.Nullable;
+import android.app.AlertDialog;
+import android.content.DialogInterface;
+import android.content.DialogInterface.OnCancelListener;
+import android.content.DialogInterface.OnClickListener;
+import android.content.DialogInterface.OnDismissListener;
+import android.os.Bundle;
+import android.os.RemoteException;
+import android.os.ServiceManager;
+import android.os.UserManager;
+import android.util.Log;
+import android.webkit.IWebViewUpdateService;
+import android.webkit.WebViewProviderInfo;
+import com.android.internal.logging.MetricsProto.MetricsEvent;
+
+import java.util.ArrayList;
+
+public class WebViewImplementation extends InstrumentedActivity implements
+        OnCancelListener, OnDismissListener {
+
+    private static final String TAG = "WebViewImplementation";
+
+    private IWebViewUpdateService mWebViewUpdateService;
+
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        if (!UserManager.get(this).isAdminUser()) {
+            finish();
+            return;
+        }
+        mWebViewUpdateService  =
+                IWebViewUpdateService.Stub.asInterface(ServiceManager.getService("webviewupdate"));
+        try {
+            WebViewProviderInfo[] providers = mWebViewUpdateService.getValidWebViewPackages();
+            if (providers == null) {
+                Log.e(TAG, "No WebView providers available");
+                finish();
+                return;
+            }
+
+            String currentValue = mWebViewUpdateService.getCurrentWebViewPackageName();
+            if (currentValue == null) {
+                currentValue = "";
+            }
+
+            int currentIndex = -1;
+            ArrayList<String> options = new ArrayList<>();
+            final ArrayList<String> values = new ArrayList<>();
+            for (WebViewProviderInfo provider : providers) {
+                if (Utils.isPackageEnabled(this, provider.packageName)) {
+                    options.add(provider.description);
+                    values.add(provider.packageName);
+                    if (currentValue.contentEquals(provider.packageName)) {
+                        currentIndex = values.size() - 1;
+                    }
+                }
+            }
+
+            new AlertDialog.Builder(this)
+                    .setTitle(R.string.select_webview_provider_dialog_title)
+                    .setSingleChoiceItems(options.toArray(new String[0]), currentIndex,
+                            new OnClickListener() {
+                        @Override
+                        public void onClick(DialogInterface dialog, int which) {
+                            try {
+                                mWebViewUpdateService.changeProviderAndSetting(values.get(which));
+                            } catch (RemoteException e) {
+                                Log.w(TAG, "Problem reaching webviewupdate service", e);
+                            }
+                            finish();
+                        }
+                    }).setNegativeButton(android.R.string.cancel, null)
+                    .setOnCancelListener(this)
+                    .setOnDismissListener(this)
+                    .show();
+        } catch (RemoteException e) {
+            Log.w(TAG, "Problem reaching webviewupdate service", e);
+            finish();
+        }
+    }
+
+    @Override
+    protected int getMetricsCategory() {
+        return MetricsEvent.WEBVIEW_IMPLEMENTATION;
+    }
+
+    @Override
+    public void onCancel(DialogInterface dialog) {
+        finish();
+    }
+
+    @Override
+    public void onDismiss(DialogInterface dialog) {
+        finish();
+    }
+}