command as action/reducer

src/reducers/command.js

@@ -0,0 +1,24 @@
+import * as tabs from '../background/tabs';
+import actions from '../actions';
+
+const cmdBuffer = (sender, arg) => {
+  if (isNaN(arg)) {
+    return tabs.selectByKeyword(sender.tab, arg);
+  } else {
+    let index = parseInt(arg, 10) - 1;
+    return tabs.selectAt(index);
+  }
+}
+
+export default function reducer(state, action, sender) {
+  switch (action.type) {
+  case actions.COMMAND_OPEN_URL:
+    return browser.tabs.update(sender.tab.id, { url: action.url });
+  case actions.COMMAND_TABOPEN_URL:
+    return browser.tabs.create({ url: action.url });
+  case actions.COMMAND_BUFFER:
+    return cmdBuffer(sender, action.keywords);
+  default:
+    return Promise.resolve();
+  }
+}