From 98786ee3f3b062e16d843bb04c0999fedfa5d059 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mart=C3=ADn=20Fern=C3=A1ndez?= <paziusss@gmail.com>
Date: Wed, 20 Mar 2019 16:59:17 +0100
Subject: [PATCH] open urls in external browser (#133)

---
 assets/android.lua                          | 14 ++++++++++++++
 src/org/koreader/launcher/MainActivity.java | 16 ++++++++++++++++
 2 files changed, 30 insertions(+)

diff --git a/assets/android.lua b/assets/android.lua
index ecc44a0fd..eb57661cf 100644
--- a/assets/android.lua
+++ b/assets/android.lua
@@ -1554,6 +1554,20 @@ local function run(android_app_state)
         end)
     end
 
+    android.openLink = function(link)
+        return JNI:context(android.app.activity.vm, function(JNI)
+            local uri_string = JNI.env[0].NewStringUTF(JNI.env, link)
+            local result = JNI:callIntMethod(
+                android.app.activity.clazz,
+                "openLink",
+                "(Ljava/lang/String;)I",
+                uri_string
+            )
+            JNI.env[0].DeleteLocalRef(JNI.env, uri_string)
+            return result
+        end)
+    end
+
     android.notification = function(message)
         return JNI:context(android.app.activity.vm, function(JNI)
             local text = JNI.env[0].NewStringUTF(JNI.env, message)
diff --git a/src/org/koreader/launcher/MainActivity.java b/src/org/koreader/launcher/MainActivity.java
index 1138fd30b..775e89a40 100644
--- a/src/org/koreader/launcher/MainActivity.java
+++ b/src/org/koreader/launcher/MainActivity.java
@@ -297,6 +297,10 @@ public int download(final String url, final String name) {
         return 0;
     }
 
+    public int openLink(String url) {
+        return openWebPage(url) ? 0 : 1;
+    }
+
     // ----------------------------------
     private WifiManager getWifiManager() {
         return (WifiManager) this.getSystemService(Context.WIFI_SERVICE);
@@ -318,4 +322,16 @@ private void setFullscreenLayout() {
                 View.SYSTEM_UI_FLAG_LOW_PROFILE);
         }
     }
+
+    private boolean openWebPage(String url) {
+        Uri webpage = Uri.parse(url);
+        Intent intent = new Intent(Intent.ACTION_VIEW, webpage);
+        if (intent.resolveActivity(getPackageManager()) != null) {
+            startActivity(intent);
+            return true;
+        } else {
+            // cannot find a package able to open the page
+            return false;
+        }
+    }
 }