From 8f6a9399a57b33203a277db238658e4f77f36b7f Mon Sep 17 00:00:00 2001
From: Yi-Ling Chuang <emilychuang@google.com>
Date: Wed, 3 Jun 2020 16:02:32 +0800
Subject: [PATCH] Create an API for browser app checking.

Add this new API into AppUtils so we can check if a certain app is a
browser.

Bug: 129162570
Test: Build with Settings app and see "Open by default" is hidden if
it's a browser.

Change-Id: I8179481434dce59a7a82d26d7ec63445b1659a10
---
 .../settingslib/applications/AppUtils.java    | 30 +++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/packages/SettingsLib/src/com/android/settingslib/applications/AppUtils.java b/packages/SettingsLib/src/com/android/settingslib/applications/AppUtils.java
index a6202956efa51..38eeda245616d 100644
--- a/packages/SettingsLib/src/com/android/settingslib/applications/AppUtils.java
+++ b/packages/SettingsLib/src/com/android/settingslib/applications/AppUtils.java
@@ -19,10 +19,13 @@ package com.android.settingslib.applications;
 import android.app.Application;
 import android.content.ComponentName;
 import android.content.Context;
+import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
 import android.hardware.usb.IUsbManager;
+import android.net.Uri;
 import android.os.RemoteException;
 import android.os.SystemProperties;
 import android.os.UserHandle;
@@ -44,6 +47,15 @@ public class AppUtils {
      */
     private static InstantAppDataProvider sInstantAppDataProvider = null;
 
+    private static final Intent sBrowserIntent;
+
+    static {
+        sBrowserIntent = new Intent()
+                .setAction(Intent.ACTION_VIEW)
+                .addCategory(Intent.CATEGORY_BROWSABLE)
+                .setData(Uri.parse("http:"));
+    }
+
     public static CharSequence getLaunchByDefaultSummary(ApplicationsState.AppEntry appEntry,
             IUsbManager usbManager, PackageManager pm, Context context) {
         String packageName = appEntry.info.packageName;
@@ -153,4 +165,22 @@ public class AppUtils {
         return com.android.settingslib.utils.applications.AppUtils.getAppContentDescription(context,
                 packageName, userId);
     }
+
+    /**
+     * Returns a boolean indicating whether a given package is a browser app.
+     *
+     * An app is a "browser" if it has an activity resolution that wound up
+     * marked with the 'handleAllWebDataURI' flag.
+     */
+    public static boolean isBrowserApp(Context context, String packageName, int userId) {
+        sBrowserIntent.setPackage(packageName);
+        final List<ResolveInfo> list = context.getPackageManager().queryIntentActivitiesAsUser(
+                sBrowserIntent, PackageManager.MATCH_ALL, userId);
+        for (ResolveInfo info : list) {
+            if (info.activityInfo != null && info.handleAllWebDataURI) {
+                return true;
+            }
+        }
+        return false;
+    }
 }