Merge pull request #415 from ueokande/pattern-not-found-null

Fix no previous search keywords

src/content/actions/find.js

@@ -22,6 +22,12 @@ const postPatternFound = (pattern) => {
   );
 };
 
+const postNoPrevious = () => {
+  return consoleFrames.postError(
+    window.document,
+    'No previous search keywords');
+};
+
 const find = (string, backwards) => {
   let caseSensitive = false;
   let wrapScan = true;
@@ -50,6 +56,9 @@ const findNext = (currentKeyword, reset, backwards) => {
   }
 
   return promise.then((keyword) => {
+    if (!keyword) {
+      return postNoPrevious();
+    }
     let found = find(keyword, backwards);
     if (!found) {
       window.getSelection().removeAllRanges();

src/content/components/top-content/find.js

@@ -1,6 +1,5 @@
 import * as findActions from 'content/actions/find';
 import messages from 'shared/messages';
-import * as consoleFrames from '../../console-frames';
 
 export default class FindComponent {
   constructor(win, store) {
@@ -32,23 +31,11 @@ export default class FindComponent {
 
   next() {
     let state = this.store.getState().find;
-    if (!state.keyword) {
-      return this.postNoPrevious();
-    }
     return this.store.dispatch(findActions.next(state.keyword, false));
   }
 
   prev() {
     let state = this.store.getState().find;
-    if (!state.keyword) {
-      return this.postNoPrevious();
-    }
     return this.store.dispatch(findActions.prev(state.keyword, false));
   }
-
-  postNoPrevious() {
-    return consoleFrames.postError(
-      window.document,
-      'No previous search keypards');
-  }
 }