Introduce CTRL-E shortcut for archiving a conversation

js/views/inbox_view.js

@@ -1,4 +1,5 @@
 /* global
+  $,
   ConversationController,
   extension,
   getConversations,
@@ -146,6 +147,27 @@
 
       this.openConversationAction = openConversationExternal;
 
+      // In the future this listener will be added by the conversation view itself. But
+      //   because we currently have multiple converations open at once, we install just
+      //   one global handler.
+      $(document).on('keydown', event => {
+        const { ctrlKey, key } = event;
+
+        // We can add Command-E as the Mac shortcut when we add it to our Electron menus:
+        //   https://stackoverflow.com/questions/27380018/when-cmd-key-is-kept-pressed-keyup-is-not-triggered-for-any-other-key
+        // For now, it will stay as CTRL-E only
+        if (key === 'e' && ctrlKey) {
+          const state = this.store.getState();
+          const selectedId = state.conversations.selectedConversation;
+          const conversation = ConversationController.get(selectedId);
+
+          if (conversation && !conversation.get('isArchived')) {
+            conversation.setArchived(true);
+            conversation.trigger('unload');
+          }
+        }
+      });
+
       this.listenTo(convoCollection, 'remove', conversation => {
         const { id } = conversation || {};
         conversationRemoved(id);