fix(direct-edit): route off-server links out of the editor WebView

app/src/main/java/it/niedermann/owncloud/notes/edit/NoteDirectEditFragment.kt

@@ -7,6 +7,8 @@
 package it.niedermann.owncloud.notes.edit
 
 import android.annotation.SuppressLint
+import android.content.ActivityNotFoundException
+import android.content.Intent
 import android.net.http.SslError
 import android.os.Bundle
 import android.util.Log
@@ -302,6 +304,30 @@ class NoteDirectEditFragment : BaseNoteFragment(), Branded {
                     super.onReceivedSslError(view, handler, error)
                 }
             }
+
+            override fun shouldOverrideUrlLoading(
+                view: WebView?,
+                request: WebResourceRequest?,
+            ): Boolean {
+                val url = request?.url ?: return false
+                val scheme = url.scheme?.lowercase()
+                val accountUrl = runCatching { account.url }.getOrNull()
+                if ((scheme == "http" || scheme == "https") &&
+                    accountUrl != null && url.toString().startsWith(accountUrl)
+                ) {
+                    return false
+                }
+                return try {
+                    val intent = Intent(Intent.ACTION_VIEW, url).apply {
+                        addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
+                    }
+                    startActivity(intent)
+                    true
+                } catch (e: ActivityNotFoundException) {
+                    Log.w(TAG, "No app available to open $url", e)
+                    true
+                }
+            }
         }
     }