Full screen default app fragment

Fix: 34280137
Test: make RunSettingsRoboTests
Change-Id: Ib44e39589781d68c7952a2c16a44682791a422f1

src/com/android/settings/applications/defaultapps/DefaultBrowserPreferenceController.java

@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2017 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.applications.defaultapps;
+
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
+import android.net.Uri;
+import android.os.UserHandle;
+import android.support.v7.preference.Preference;
+import android.text.TextUtils;
+
+import java.util.List;
+
+public class DefaultBrowserPreferenceController extends DefaultAppPreferenceController {
+
+    static final Intent BROWSE_PROBE = new Intent()
+            .setAction(Intent.ACTION_VIEW)
+            .addCategory(Intent.CATEGORY_BROWSABLE)
+            .setData(Uri.parse("http:"));
+
+    public DefaultBrowserPreferenceController(Context context) {
+        super(context);
+    }
+
+    @Override
+    public boolean isAvailable() {
+        return true;
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return "default_browser";
+    }
+
+    @Override
+    public void updateState(Preference preference) {
+        super.updateState(preference);
+        final DefaultAppInfo defaultApp = getDefaultAppInfo();
+        final CharSequence defaultAppLabel = defaultApp != null
+                ? defaultApp.loadLabel(mPackageManager.getPackageManager()) : null;
+        if (TextUtils.isEmpty(defaultAppLabel)) {
+            final String onlyAppLabel = getOnlyAppLabel();
+            if (!TextUtils.isEmpty(onlyAppLabel)) {
+                preference.setSummary(onlyAppLabel);
+            }
+        }
+    }
+
+    private String getOnlyAppLabel() {
+        // Resolve that intent and check that the handleAllWebDataURI boolean is set
+        final List<ResolveInfo> list = mPackageManager.queryIntentActivitiesAsUser(BROWSE_PROBE,
+                PackageManager.MATCH_ALL, mUserId);
+        if (list != null && list.size() == 1) {
+            return list.get(0).loadLabel(mPackageManager.getPackageManager()).toString();
+        }
+        return null;
+    }
+
+    @Override
+    protected DefaultAppInfo getDefaultAppInfo() {
+        try {
+            return new DefaultAppInfo(mPackageManager.getPackageManager().getApplicationInfo(
+                    mPackageManager.getDefaultBrowserPackageNameAsUser(mUserId), 0));
+        } catch (PackageManager.NameNotFoundException e) {
+            return null;
+        }
+    }
+
+    /**
+     * Whether or not the pkg contains browser capability
+     */
+    public static boolean hasBrowserPreference(String pkg, Context context) {
+        final Intent intent = new Intent(BROWSE_PROBE);
+        intent.setPackage(pkg);
+        final List<ResolveInfo> resolveInfos =
+                context.getPackageManager().queryIntentActivities(intent, 0);
+        return resolveInfos != null && resolveInfos.size() != 0;
+    }
+
+    /**
+     * Whether or not the pkg is the default browser
+     */
+    public static boolean isBrowserDefault(String pkg, Context context) {
+        String defaultPackage = context.getPackageManager()
+                .getDefaultBrowserPackageNameAsUser(UserHandle.myUserId());
+        return defaultPackage != null && defaultPackage.equals(pkg);
+    }
+}