fix(editor): pass back link to editor toolbar (#4000)

packages/netlify-cms-core/src/components/Editor/Editor.js

@@ -368,6 +368,7 @@ export class Editor extends React.Component {
       draftKey,
       slug,
       t,
+      editorBackLink,
     } = this.props;
 
     const isPublished = !newEntry && !unpublishedEntry;
@@ -416,6 +417,7 @@ export class Editor extends React.Component {
         onLogoutClick={logoutUser}
         deployPreview={deployPreview}
         loadDeployPreview={opts => loadDeployPreview(collection, slug, entry, isPublished, opts)}
+        editorBackLink={editorBackLink}
       />
     );
   }
@@ -442,6 +444,13 @@ function mapStateToProps(state, ownProps) {
   const deployPreview = selectDeployPreview(state, collectionName, slug);
   const localBackup = entryDraft.get('localBackup');
   const draftKey = entryDraft.get('key');
+  let editorBackLink = `/collections/${collectionName}`;
+  if (collection.has('nested') && slug) {
+    const pathParts = slug.split('/');
+    if (pathParts.length > 2) {
+      editorBackLink = `${editorBackLink}/filter/${pathParts.slice(0, -2).join('/')}`;
+    }
+  }
 
   return {
     collection,
@@ -464,6 +473,7 @@ function mapStateToProps(state, ownProps) {
     draftKey,
     publishedEntry,
     unPublishedEntry,
+    editorBackLink,
   };
 }
 

packages/netlify-cms-core/src/components/Editor/EditorInterface.js

@@ -185,6 +185,7 @@ class EditorInterface extends Component {
       loadDeployPreview,
       deployPreview,
       draftKey,
+      editorBackLink,
     } = this.props;
 
     const { previewVisible, scrollSyncEnabled, showEventBlocker } = this.state;
@@ -263,6 +264,7 @@ class EditorInterface extends Component {
           onLogoutClick={onLogoutClick}
           loadDeployPreview={loadDeployPreview}
           deployPreview={deployPreview}
+          editorBackLink={editorBackLink}
         />
         <Editor key={draftKey}>
           <ViewControls>

packages/netlify-cms-core/src/components/Editor/EditorToolbar.js

@@ -5,7 +5,7 @@ import { css } from '@emotion/core';
 import styled from '@emotion/styled';
 import { translate } from 'react-polyglot';
 import { Map } from 'immutable';
-import history from 'Routing/history';
+import { Link } from 'react-router-dom';
 import {
   Icon,
   Dropdown,
@@ -80,7 +80,7 @@ const ToolbarSubSectionLast = styled(ToolbarSubSectionFirst)`
   justify-content: flex-end;
 `;
 
-const ToolbarSectionBackLink = styled.a`
+const ToolbarSectionBackLink = styled(Link)`
   ${styles.toolbarSection};
   border-right-width: 1px;
   font-weight: normal;
@@ -247,6 +247,7 @@ class EditorToolbar extends React.Component {
     deployPreview: ImmutablePropTypes.map,
     loadDeployPreview: PropTypes.func.isRequired,
     t: PropTypes.func.isRequired,
+    editorBackLink: PropTypes.string.isRequired,
   };
 
   componentDidMount() {
@@ -564,19 +565,20 @@ class EditorToolbar extends React.Component {
   };
 
   render() {
-    const { user, hasChanged, displayUrl, collection, hasWorkflow, onLogoutClick, t } = this.props;
+    const {
+      user,
+      hasChanged,
+      displayUrl,
+      collection,
+      hasWorkflow,
+      onLogoutClick,
+      t,
+      editorBackLink,
+    } = this.props;
 
     return (
       <ToolbarContainer>
-        <ToolbarSectionBackLink
-          onClick={() => {
-            if (history.length > 2) {
-              history.goBack();
-            } else {
-              history.push(`/collections/${collection.get('name')}`);
-            }
-          }}
-        >
+        <ToolbarSectionBackLink to={editorBackLink}>
           <BackArrow>←</BackArrow>
           <div>
             <BackCollection>