error title

src/console/console-frame.js

@@ -1,19 +1,43 @@
 import './console-frame.scss';
+import * as messages from '../shared/messages';
 
 export default class ConsoleFrame {
   constructor(win, initial = '') {
-    let url = browser.runtime.getURL('build/console.html') +
-      '#' + encodeURIComponent(initial);
-
     let element = window.document.createElement('iframe');
-    element.src = url;
+    element.src = browser.runtime.getURL('build/console.html');
     element.className = 'vimvixen-console-frame';
     win.document.body.append(element);
 
     this.element = element;
+
+    this.hide();
   }
 
-  remove() {
-    this.element.remove();
+  showCommand(text) {
+    this.showFrame();
+
+    let message = {
+      type: 'vimvixen.console.show.command',
+      text: text
+    };
+    messages.send(this.element.contentWindow, message);
+  }
+
+  showError(text) {
+    this.showFrame();
+
+    let message = {
+      type: 'vimvixen.console.show.error',
+      text: text
+    };
+    messages.send(this.element.contentWindow, message);
+  }
+
+  showFrame() {
+    this.element.style.display = 'block';
+  }
+
+  hide() {
+    this.element.style.display = 'none';
   }
 }