js: change in initialization ancd connection handling

--

* The Connection will now be started before an object is created, to
  better account for failures.
* index.js: now exposes an init(), which returns a Promise of
  configurable <GpgME | gpgmeGpgME_openPGPCompatibility> with an
  established connection.
* TODO: There is currently no way to recover from a "connection lost"
* Connection.js offers Connection.isConnected, which toggles on port
  closing.

1 files changed, 15 insertions, 15 deletions

diff --git a/lang/js/src/Keyring.js b/lang/js/src/Keyring.js
index d8cb84b2..ef8028ff 100644
--- a/lang/js/src/Keyring.js
+++ b/lang/js/src/Keyring.js
@@ -19,27 +19,27 @@
  */
 
 import {GPGME_Message} from './Message'
-import {Connection} from './Connection'
 import {GPGME_Key} from './Key'
 import { isFingerprint, isLongId } from './Helpers';
 
 export class GPGME_Keyring {
-    constructor(){
-        this.reconnect();
+    constructor(connection){
+        this.connection = connection;
     }
 
-    /**
-     * (Re)-establishes the connection
-     * TODO TEMP: should we better use the connection of our parent,
-     * which we do not control?
-     */
-    reconnect(){
-        if (!this._connection || ! this._connection instanceof Connection){
-            this._connection = new Connection;
-        } else {
-            this._connection.disconnect();
-            this._connection.connect();
+    set connection(connection){
+        if (!this._connection && connection instanceof Connection){
+            this._connection = connection;
+        }
+    }
+    get connection(){
+        if (this._connection instanceof Connection){
+            if (this._connection.isConnected){
+                return this._connection;
+            }
+            return undefined; //TODO: connection was lost!
         }
+        return undefined; //TODO: no connection there
     }
 
     /**
@@ -57,7 +57,7 @@ export class GPGME_Keyring {
             msg.setParameter('with-secret', true);
         }
 
-        this._connection.post(msg).then(function(result){
+        this.connection.post(msg).then(function(result){
             let fpr_list = [];
             let resultset = [];
             if (!Array.isArray(result.keys)){