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, 23 insertions, 10 deletions

diff --git a/lang/js/src/gpgmejs_openpgpjs.js b/lang/js/src/gpgmejs_openpgpjs.js
index 54b9dd45..f1ddb5d6 100644
--- a/lang/js/src/gpgmejs_openpgpjs.js
+++ b/lang/js/src/gpgmejs_openpgpjs.js
@@ -30,13 +30,29 @@
  import { isFingerprint } from "./Helpers"
  import { GPGMEJS_Error } from './Errors'
 
+
 export class GpgME_openPGPCompatibility {
 
-    constructor(){
-        this._gpgme =  new GpgME({
-            null_expire_is_never: false
-        });
-        this.Keyring = this.initKeyring();
+    constructor(connection){
+        this.initGpgME(connection);
+    }
+
+    get Keyring(){
+        if (this._keyring){
+            return this._keyring;
+        }
+        return undefined;
+    }
+
+    initGpgME(connection){
+        this._GpgME = new GpgME(connection);
+        this._Keyring = new GPGME_Keyring_openPGPCompatibility(connection);
+    }
+
+    get GpgME(){
+        if (this._GpGME){
+            return this._GpGME;
+        }
     }
 
     /**
@@ -128,9 +144,6 @@ export class GpgME_openPGPCompatibility {
         // mime:   A Boolean indicating whether the data is a MIME object.
         // info:   An optional object with extra information.
     }
-    initKeyring(){
-        return new GPGME_Keyring_openPGPCompatibility;
-    }
 }
 
 /**
@@ -138,8 +151,8 @@ export class GpgME_openPGPCompatibility {
  * It may still be changed/expanded/merged with GPGME_Keyring
  */
 class GPGME_Keyring_openPGPCompatibility {
-    constructor(){
-        this._gpgme_keyring = new GPGME_Keyring;
+    constructor(connection){
+        this._gpgme_keyring = new GPGME_Keyring(connection);
     }
 
     /**