From 66d7d85c182810675b09e796acfac466ac7189a2 Mon Sep 17 00:00:00 2001
From: Soren Stoutner <soren@stoutner.com>
Date: Wed, 17 Aug 2016 17:27:29 -0700
Subject: [PATCH] Handle `mailto:` links.  Fixes
 https://redmine.stoutner.com/issues/14

---
 .idea/dictionaries/soren.xml                  |  1 +
 .../privacybrowser/MainWebViewActivity.java   | 23 ++++++++++++++++---
 2 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/.idea/dictionaries/soren.xml b/.idea/dictionaries/soren.xml
index 1aea9cb6..24bc218d 100644
--- a/.idea/dictionaries/soren.xml
+++ b/.idea/dictionaries/soren.xml
@@ -46,6 +46,7 @@
       <w>robinlinus</w>
       <w>samsung</w>
       <w>securitypatch</w>
+      <w>sendto</w>
       <w>snackbar</w>
       <w>snackbars</w>
       <w>subfolders</w>
diff --git a/app/src/main/java/com/stoutner/privacybrowser/MainWebViewActivity.java b/app/src/main/java/com/stoutner/privacybrowser/MainWebViewActivity.java
index bdafa3c9..94ff1129 100644
--- a/app/src/main/java/com/stoutner/privacybrowser/MainWebViewActivity.java
+++ b/app/src/main/java/com/stoutner/privacybrowser/MainWebViewActivity.java
@@ -29,6 +29,7 @@ import android.content.res.Configuration;
 import android.graphics.Bitmap;
 import android.graphics.drawable.BitmapDrawable;
 import android.graphics.drawable.Drawable;
+import android.net.MailTo;
 import android.net.Uri;
 import android.os.Build;
 import android.os.Bundle;
@@ -204,11 +205,27 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
         drawerToggle = new ActionBarDrawerToggle(this, drawerLayout, supportAppBar, R.string.open_navigation, R.string.close_navigation);
 
         mainWebView.setWebViewClient(new WebViewClient() {
-            // shouldOverrideUrlLoading makes this WebView the default handler for URLs inside the app, so that links are not kicked out to other apps.
+            // shouldOverrideUrlLoading makes this `WebView` the default handler for URLs inside the app, so that links are not kicked out to other apps.
             @Override
             public boolean shouldOverrideUrlLoading(WebView view, String url) {
-                mainWebView.loadUrl(url);
-                return true;
+                // Use an external email program if the link begins with "mailto:".
+                if (url.startsWith("mailto:")) {
+                    // We use `ACTION_SENDTO` instead of `ACTION_SEND` so that only email programs are launched.
+                    Intent emailIntent = new Intent(Intent.ACTION_SENDTO);
+
+                    // Parse the url and set it as the data for the `Intent`.
+                    emailIntent.setData(Uri.parse(url));
+
+                    // `FLAG_ACTIVITY_NEW_TASK` opens the email program in a new task instead as part of Privacy Browser.
+                    emailIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+
+                    // Make it so.
+                    startActivity(emailIntent);
+                    return true;
+                } else {  // Load the URL in Privacy Browser.
+                    mainWebView.loadUrl(url);
+                    return true;
+                }
             }
 
             // Update the URL in urlTextBox when the page starts to load.
-- 
2.43.0