Add set default browser option in settings

android/java/org/chromium/chrome/browser/BraveActivity.java

@@ -6,6 +6,16 @@
 package org.chromium.chrome.browser;
 
 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.Build;
+import android.provider.Settings;
+import android.view.Gravity;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
 
 import org.chromium.base.CommandLine;
 import org.chromium.base.ContextUtils;
@@ -17,6 +27,7 @@ import org.chromium.chrome.browser.preferences.BraveSearchEngineUtils;
 import org.chromium.chrome.browser.preferences.Pref;
 import org.chromium.chrome.browser.preferences.PrefServiceBridge;
 import org.chromium.chrome.browser.tab.Tab;
+import org.chromium.ui.widget.Toast;
 
 /**
  * Brave's extension for ChromeActivity
@@ -25,6 +36,12 @@ import org.chromium.chrome.browser.tab.Tab;
 public abstract class BraveActivity extends ChromeActivity {
     private static final String PREF_CLOSE_TABS_ON_EXIT = "close_tabs_on_exit";
 
+    /**
+     * Settings for sending local notification reminders.
+     */
+    public static final String BRAVE_PRODUCTION_PACKAGE_NAME = "com.brave.browser";
+    public static final String BRAVE_DEVELOPMENT_PACKAGE_NAME = "com.brave.browser_default";
+
     @Override
     public void onResumeWithNative() {
         super.onResumeWithNative();
@@ -51,7 +68,7 @@ public abstract class BraveActivity extends ChromeActivity {
         } else if (id == R.id.exit_id) {
             ApplicationLifetime.terminate(false);
         } else if (id == R.id.set_default_browser) {
-            // Implement handler.
+            handleBraveSetDefaultBrowserDialog();
         } else if (id == R.id.brave_rewards_id) {
             // Implement handler.
         } else {
@@ -103,5 +120,69 @@ public abstract class BraveActivity extends ChromeActivity {
         return ContextUtils.getAppSharedPreferences().getBoolean(PREF_CLOSE_TABS_ON_EXIT, false);
     }
 
+    public boolean isBraveSetAsDefaultBrowser() {
+        Intent browserIntent = new Intent("android.intent.action.VIEW", Uri.parse("http://"));
+        boolean supportsDefault = Build.VERSION.SDK_INT >= 24;
+        ResolveInfo resolveInfo = getPackageManager().resolveActivity(
+                browserIntent, supportsDefault ? PackageManager.MATCH_DEFAULT_ONLY : 0);
+        return resolveInfo.activityInfo.packageName.equals(BRAVE_PRODUCTION_PACKAGE_NAME)
+                || resolveInfo.activityInfo.packageName.equals(BRAVE_DEVELOPMENT_PACKAGE_NAME);
+    }
+
+    private void handleBraveSetDefaultBrowserDialog() {
+        /* (Albert Wang): Default app settings didn't get added until API 24
+         * https://developer.android.com/reference/android/provider/Settings#ACTION_MANAGE_DEFAULT_APPS_SETTINGS
+         */
+        Intent browserIntent = new Intent("android.intent.action.VIEW", Uri.parse("http://"));
+        boolean supportsDefault = Build.VERSION.SDK_INT >= 24;
+        ResolveInfo resolveInfo = getPackageManager().resolveActivity(
+                browserIntent, supportsDefault ? PackageManager.MATCH_DEFAULT_ONLY : 0);
+        Context context = ContextUtils.getApplicationContext();
+        if (isBraveSetAsDefaultBrowser()) {
+            Toast toast = Toast.makeText(
+                    context, R.string.brave_already_set_as_default_browser, Toast.LENGTH_LONG);
+            toast.show();
+            return;
+        }
+        if (supportsDefault) {
+            if (resolveInfo.activityInfo.packageName.equals("com.google.android.setupwizard")
+                    || resolveInfo.activityInfo.packageName.equals("android")) {
+                LayoutInflater inflater = getLayoutInflater();
+                View layout = inflater.inflate(R.layout.brave_set_default_browser_dialog,
+                        (ViewGroup) findViewById(R.id.brave_set_default_browser_toast_container));
+
+                Toast toast = new Toast(context);
+                toast.setDuration(Toast.LENGTH_LONG);
+                toast.setView(layout);
+                toast.setGravity(Gravity.TOP, 0, 40);
+                toast.show();
+                Intent intent =
+                        new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.brave.com/blog"));
+                intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+                context.startActivity(intent);
+            } else {
+                Intent intent = new Intent(Settings.ACTION_MANAGE_DEFAULT_APPS_SETTINGS);
+                intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+                context.startActivity(intent);
+            }
+        } else {
+            if (resolveInfo.activityInfo.packageName.equals("com.google.android.setupwizard")
+                    || resolveInfo.activityInfo.packageName.equals("android")) {
+                // (Albert Wang): From what I've experimented on 6.0,
+                // default browser popup is in the middle of the screen for
+                // these versions. So we shouldn't show the toast.
+                Intent intent =
+                        new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.brave.com/blog"));
+                intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+                context.startActivity(intent);
+            } else {
+                Toast toast = Toast.makeText(
+                        context, R.string.brave_default_browser_go_to_settings, Toast.LENGTH_LONG);
+                toast.show();
+                return;
+            }
+        }
+    }
+
     private native void nativeRestartStatsUpdater();
 }

android/java/res/layout/brave_set_default_browser_dialog.xml

@@ -0,0 +1,22 @@
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/brave_set_default_browser_toast_container"
+    android:orientation="horizontal"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent"
+    android:padding="8dp"
+    android:background="#FFF">
+  <ImageView
+      android:src="@drawable/btn_brave"
+      android:layout_width="wrap_content"
+      android:layout_height="wrap_content"
+      android:layout_marginEnd="8dp"
+      tools:ignore="ContentDescription"/>
+  <TextView
+      android:text="@string/brave_set_default_browser_dialog_text"
+      android:layout_width="wrap_content"
+      android:layout_height="wrap_content"
+      android:textColor="#222"/>
+</LinearLayout>

android/java/strings/android_brave_strings.grd

@@ -231,6 +231,15 @@ This file contains all "about" strings.  It is set to NOT be translated, in tran
       <message name="IDS_MENU_SET_DEFAULT_BROWSER" desc="Title for set default browser menu item">
         Set as default browser
       </message>
+      <message name="IDS_BRAVE_SET_DEFAULT_BROWSER_DIALOG_TEXT" desc="Dialog for setting default browser">
+        Select Brave Browser from the list and tap 'Always'
+      </message>
+      <message name="IDS_BRAVE_ALREADY_SET_AS_DEFAULT_BROWSER" desc="Toast message for those whom have already set Brave as default browser">
+        Brave is already set as your default browser.
+      </message>
+      <message name="IDS_BRAVE_DEFAULT_BROWSER_GO_TO_SETTINGS" desc="Toast message for those without 7.0 to go to settings to change default browser">
+        You've already set a default browser. You may change the default browser in your app settings.
+      </message>
       <message name="IDS_MENU_BRAVE_REWARDS" desc="Title for brave rewards menu item">
         Brave Rewards
       </message>