feature(terminal) add optional --terminal support

client/modules/terminal.js

@@ -0,0 +1,129 @@
+'use strict';
+
+/* global CloudCmd, gritty */
+
+const exec = require('execon');
+const load = require('../dom/load');
+const DOM = require('../dom');
+const Images = require('../dom/images');
+const {Dialog} = DOM;
+
+const TITLE = 'Terminal';
+
+CloudCmd.Terminal = TerminalProto;
+
+const {Key} = CloudCmd;
+
+let Element;
+let Loaded;
+let Terminal;
+
+const {config} = CloudCmd;
+
+function TerminalProto() {
+    if (!config('terminal'))
+        return;
+    
+    Images.show.load('top');
+    
+    exec.series([
+        CloudCmd.View,
+        loadAll,
+        create,
+        show,
+    ]);
+    
+    Element = load({
+        name: 'div',
+        style: 'height: 99%',
+        className : 'terminal',
+    });
+    
+    return module.exports;
+}
+
+module.exports.show = show;
+
+module.exports.hide = hide;
+
+function hide () {
+    CloudCmd.View.hide();
+}
+
+function getPrefix() {
+    return CloudCmd.PREFIX + '/gritty';
+}
+
+function getEnv() {
+    return {
+        ACTIVE_DIR: DOM.getCurrentDirPath,
+        PASSIVE_DIR: DOM.getNotCurrentDirPath,
+        CURRENT_NAME: DOM.getCurrentName,
+        CURRENT_PATH: DOM.getCurrentPath
+    };
+}
+
+function create(callback) {
+    const options = {
+        env: getEnv(),
+        prefix: getPrefix(),
+        socketPath: CloudCmd.PREFIX,
+    };
+    
+    const {socket, terminal} = gritty(Element, options);
+    
+    terminal.focus();
+    
+    Terminal = terminal;
+    
+    terminal.on('key', (char, {keyCode, shiftKey}) => {
+        if (shiftKey && keyCode === Key.ESC) {
+            hide();
+        }
+    });
+    
+    socket.on('connect', exec.with(authCheck, socket));
+    
+    exec(callback);
+}
+
+function authCheck(spawn) {
+    if (!config('auth'))
+        return;
+    
+    spawn.emit('auth', config('username'), config('password'));
+    
+    spawn.on('reject', () => {
+        Dialog.alert(TITLE, 'Wrong credentials!');
+    });
+}
+
+function show(callback) {
+    if (!Loaded)
+        return;
+    
+    CloudCmd.View.show(Element, {
+        afterShow: () => {
+            if (Terminal) {
+                Terminal.fit(); // lines corrupt without
+                Terminal.focus();
+            }
+            
+            exec(callback);
+        }
+    });
+}
+
+function loadAll(callback) {
+    const prefix = getPrefix();
+    const url = prefix + '/gritty.js';
+    
+    DOM.load.js(url, (error) => {
+        if (error)
+            return Dialog.alert(TITLE, error.message);
+        
+        Loaded = true;
+        exec(callback);
+    });
+}
+