diff --git a/src/actions/operation.js b/src/actions/operation.js
index 295fd4f..0bb8310 100644
--- a/src/actions/operation.js
+++ b/src/actions/operation.js
@@ -2,6 +2,9 @@ import operations from 'shared/operations';
 import messages from 'content/messages';
 import * as tabs from 'background/tabs';
 import * as zooms from 'background/zooms';
+import * as scrolls from 'content/scrolls';
+import * as navigates from 'content/navigates';
+import * as followActions from 'actions/follow';
 
 const sendConsoleShowCommand = (tab, command) => {
   return browser.tabs.sendMessage(tab.id, {
@@ -10,7 +13,43 @@ const sendConsoleShowCommand = (tab, command) => {
   });
 };
 
-const exec = (operation, tab) => {
+const exec = (operation) => {
+  switch (operation.type) {
+  case operations.SCROLL_LINES:
+    return scrolls.scrollLines(window, operation.count);
+  case operations.SCROLL_PAGES:
+    return scrolls.scrollPages(window, operation.count);
+  case operations.SCROLL_TOP:
+    return scrolls.scrollTop(window);
+  case operations.SCROLL_BOTTOM:
+    return scrolls.scrollBottom(window);
+  case operations.SCROLL_HOME:
+    return scrolls.scrollLeft(window);
+  case operations.SCROLL_END:
+    return scrolls.scrollRight(window);
+  case operations.FOLLOW_START:
+    return followActions.enable(false);
+  case operations.NAVIGATE_HISTORY_PREV:
+    return navigates.historyPrev(window);
+  case operations.NAVIGATE_HISTORY_NEXT:
+    return navigates.historyNext(window);
+  case operations.NAVIGATE_LINK_PREV:
+    return navigates.linkPrev(window);
+  case operations.NAVIGATE_LINK_NEXT:
+    return navigates.linkNext(window);
+  case operations.NAVIGATE_PARENT:
+    return navigates.parent(window);
+  case operations.NAVIGATE_ROOT:
+    return navigates.root(window);
+  default:
+    browser.runtime.sendMessage({
+      type: messages.BACKGROUND_OPERATION,
+      operation,
+    });
+  }
+};
+
+const execBackground = (operation, tab) => {
   switch (operation.type) {
   case operations.TAB_CLOSE:
     return tabs.closeTab(tab.id);
@@ -45,11 +84,8 @@ const exec = (operation, tab) => {
   case operations.COMMAND_SHOW_BUFFER:
     return sendConsoleShowCommand(tab, 'buffer ');
   default:
-    return browser.tabs.sendMessage(tab.id, {
-      type: messages.CONTENT_OPERATION,
-      operation
-    });
+    return Promise.resolve();
   }
 };
 
-export { exec };
+export { exec, execBackground };
diff --git a/src/background/index.js b/src/background/index.js
index b966c13..dbc10fb 100644
--- a/src/background/index.js
+++ b/src/background/index.js
@@ -1,7 +1,6 @@
 import * as settingsActions from 'actions/setting';
 import messages from 'content/messages';
 import BackgroundComponent from 'components/background';
-import BackgroundInputComponent from 'components/background-input';
 import reducers from 'reducers';
 import { createStore } from 'store';
 
@@ -15,10 +14,8 @@ const store = createStore(reducers, (e, sender) => {
   }
 });
 const backgroundComponent = new BackgroundComponent(store);
-const backgroundInputComponent = new BackgroundInputComponent(store);
 store.subscribe((sender) => {
   backgroundComponent.update(sender);
-  backgroundInputComponent.update(sender);
 });
 
 store.dispatch(settingsActions.load());
diff --git a/src/components/background-input.js b/src/components/background-input.js
deleted file mode 100644
index bd6ecf9..0000000
--- a/src/components/background-input.js
+++ /dev/null
@@ -1,53 +0,0 @@
-import * as inputActions from 'actions/input';
-import * as operationActions from 'actions/operation';
-
-export default class BackgroundInputComponent {
-  constructor(store) {
-    this.store = store;
-    this.keymaps = {};
-    this.prevInputs = [];
-  }
-
-  update(sender) {
-    let state = this.store.getState();
-    this.reloadSettings(state.setting);
-    this.handleKeyInputs(sender, state.input);
-  }
-
-  reloadSettings(setting) {
-    if (!setting.settings.json) {
-      return;
-    }
-    this.keymaps = JSON.parse(setting.settings.json).keymaps;
-  }
-
-  handleKeyInputs(sender, input) {
-    if (JSON.stringify(this.prevInputs) === JSON.stringify(input)) {
-      return;
-    }
-    this.prevInputs = input;
-
-    if (input.keys.length === 0) {
-      return;
-    }
-    if (sender) {
-      return this.handleKeysChanged(sender, input);
-    }
-  }
-
-  handleKeysChanged(sender, input) {
-    let matched = Object.keys(this.keymaps).filter((keyStr) => {
-      return keyStr.startsWith(input.keys);
-    });
-    if (matched.length === 0) {
-      this.store.dispatch(inputActions.clearKeys(), sender);
-      return Promise.resolve();
-    } else if (matched.length > 1 ||
-      matched.length === 1 && input.keys !== matched[0]) {
-      return Promise.resolve();
-    }
-    let operation = this.keymaps[matched];
-    this.store.dispatch(operationActions.exec(operation, sender.tab), sender);
-    this.store.dispatch(inputActions.clearKeys(), sender);
-  }
-}
diff --git a/src/components/background.js b/src/components/background.js
index de44dae..79a7a6a 100644
--- a/src/components/background.js
+++ b/src/components/background.js
@@ -1,5 +1,5 @@
 import messages from 'content/messages';
-import * as inputActions from 'actions/input';
+import * as operationActions from 'actions/operation';
 import * as settingsActions from 'actions/setting';
 import * as tabActions from 'actions/tab';
 import * as commands from 'shared/commands';
@@ -37,9 +37,10 @@ export default class BackgroundComponent {
 
   onMessage(message, sender) {
     switch (message.type) {
-    case messages.KEYDOWN:
+    case messages.BACKGROUND_OPERATION:
       return this.store.dispatch(
-        inputActions.keyPress(message.key, message.ctrl), sender);
+        operationActions.execBackground(message.operation, sender.tab),
+        sender);
     case messages.OPEN_URL:
       if (message.newTab) {
         return this.store.dispatch(
@@ -70,7 +71,7 @@ export default class BackgroundComponent {
   }
 
   onTabUpdated(id, info) {
-    if (info.url) {
+    if (info.status === 'complete') {
       this.syncSettings(id);
     }
   }
diff --git a/src/components/content-input.js b/src/components/content-input.js
index 38d57fd..1dbf48f 100644
--- a/src/components/content-input.js
+++ b/src/components/content-input.js
@@ -1,14 +1,43 @@
-import messages from 'content/messages';
+import * as inputActions from 'actions/input';
+import * as operationActions from 'actions/operation';
 
 export default class ContentInputComponent {
-  constructor(target) {
+  constructor(target, store) {
     this.pressed = {};
+    this.store = store;
 
     target.addEventListener('keypress', this.onKeyPress.bind(this));
     target.addEventListener('keydown', this.onKeyDown.bind(this));
     target.addEventListener('keyup', this.onKeyUp.bind(this));
   }
 
+  update() {
+    let settings = this.store.getState().setting.settings;
+    if (!settings) {
+      return;
+    }
+    let input = this.store.getState().input;
+    let keymaps = JSON.parse(settings.json).keymaps;
+
+    let matched = Object.keys(keymaps).filter((keyStr) => {
+      return keyStr.startsWith(input.keys);
+    });
+    if (matched.length === 0) {
+      this.store.dispatch(inputActions.clearKeys());
+      return Promise.resolve();
+    } else if (matched.length > 1 ||
+      matched.length === 1 && input.keys !== matched[0]) {
+      return Promise.resolve();
+    }
+    let operation = keymaps[matched];
+    try {
+      this.store.dispatch(operationActions.exec(operation));
+    } catch (e) {
+      console.error(e);
+    }
+    this.store.dispatch(inputActions.clearKeys());
+  }
+
   onKeyPress(e) {
     if (this.pressed[e.key] && this.pressed[e.key] !== 'keypress') {
       return;
@@ -30,18 +59,21 @@ export default class ContentInputComponent {
   }
 
   capture(e) {
-    if (e.target instanceof HTMLInputElement ||
-      e.target instanceof HTMLTextAreaElement ||
-      e.target instanceof HTMLSelectElement) {
+    if (this.fromInput(e)) {
       if (e.key === 'Escape' && e.target.blur) {
         e.target.blur();
       }
       return;
     }
-    browser.runtime.sendMessage({
-      type: messages.KEYDOWN,
-      key: e.key,
-      ctrl: e.ctrlKey
-    });
+    if (e.key === 'OS') {
+      return;
+    }
+    this.store.dispatch(inputActions.keyPress(e.key, e.ctrlKey));
+  }
+
+  fromInput(e) {
+    return e.target instanceof HTMLInputElement ||
+      e.target instanceof HTMLTextAreaElement ||
+      e.target instanceof HTMLSelectElement;
   }
 }
diff --git a/src/content/index.js b/src/content/index.js
index cd1a0af..09143b0 100644
--- a/src/content/index.js
+++ b/src/content/index.js
@@ -1,70 +1,32 @@
 import './console-frame.scss';
 import * as consoleFrames from './console-frames';
-import * as scrolls from 'content/scrolls';
-import * as navigates from 'content/navigates';
 import * as settingActions from 'actions/setting';
-import * as followActions from 'actions/follow';
 import { createStore } from 'store';
 import ContentInputComponent from 'components/content-input';
 import FollowComponent from 'components/follow';
 import reducers from 'reducers';
-import operations from 'shared/operations';
 import messages from './messages';
 
 const store = createStore(reducers);
 const followComponent = new FollowComponent(window.document.body, store);
+const contentInputComponent = new ContentInputComponent(window, store);
 store.subscribe(() => {
   try {
     followComponent.update();
+    contentInputComponent.update();
   } catch (e) {
     console.error(e);
   }
 });
-// eslint-disable-next-line no-unused-vars
-const contentInputComponent = new ContentInputComponent(window);
 
 consoleFrames.initialize(window.document);
 
-const execOperation = (operation) => {
-  switch (operation.type) {
-  case operations.SCROLL_LINES:
-    return scrolls.scrollLines(window, operation.count);
-  case operations.SCROLL_PAGES:
-    return scrolls.scrollPages(window, operation.count);
-  case operations.SCROLL_TOP:
-    return scrolls.scrollTop(window);
-  case operations.SCROLL_BOTTOM:
-    return scrolls.scrollBottom(window);
-  case operations.SCROLL_HOME:
-    return scrolls.scrollLeft(window);
-  case operations.SCROLL_END:
-    return scrolls.scrollRight(window);
-  case operations.FOLLOW_START:
-    return store.dispatch(followActions.enable(false));
-  case operations.NAVIGATE_HISTORY_PREV:
-    return navigates.historyPrev(window);
-  case operations.NAVIGATE_HISTORY_NEXT:
-    return navigates.historyNext(window);
-  case operations.NAVIGATE_LINK_PREV:
-    return navigates.linkPrev(window);
-  case operations.NAVIGATE_LINK_NEXT:
-    return navigates.linkNext(window);
-  case operations.NAVIGATE_PARENT:
-    return navigates.parent(window);
-  case operations.NAVIGATE_ROOT:
-    return navigates.root(window);
-  }
-};
-
 browser.runtime.onMessage.addListener((action) => {
   switch (action.type) {
   case messages.CONSOLE_HIDE:
     window.focus();
     consoleFrames.blur(window.document);
     return Promise.resolve();
-  case messages.CONTENT_OPERATION:
-    execOperation(action.operation);
-    return Promise.resolve();
   case messages.CONTENT_SET_SETTINGS:
     store.dispatch(settingActions.set(action.settings));
     return Promise.resolve();
diff --git a/src/content/messages.js b/src/content/messages.js
index 8d416c7..eb056a7 100644
--- a/src/content/messages.js
+++ b/src/content/messages.js
@@ -1,6 +1,6 @@
 export default {
-  CONTENT_OPERATION: 'content.operation',
   CONTENT_SET_SETTINGS: 'content.set.settings',
+  BACKGROUND_OPERATION: 'background.operation',
 
   CONSOLE_BLURRED: 'console.blured',
   CONSOLE_ENTERED: 'console.entered',
@@ -9,8 +9,6 @@ export default {
   CONSOLE_SHOW_ERROR: 'console.show.error',
   CONSOLE_HIDE: 'console.hide',
 
-  KEYDOWN: 'keydown',
-
   OPEN_URL: 'open.url',
 
   SETTINGS_RELOAD: 'settings.reload',