From a5120a756edc59ab674c46bab63c9d54ecb7e567 Mon Sep 17 00:00:00 2001
From: Mingze Xiao <mxiao@box.com>
Date: Mon, 16 Dec 2019 16:39:15 -0800
Subject: [PATCH] feat(archive-viewer): Add breadcrumbs

---
 src/i18n/en-US.properties                     |  2 +
 src/lib/viewers/archive/ArchiveExplorer.js    | 84 +++++++++++--------
 src/lib/viewers/archive/ArchiveExplorer.scss  |  6 ++
 src/lib/viewers/archive/Breadcrumbs.js        | 58 +++++++++++++
 src/lib/viewers/archive/Breadcrumbs.scss      | 11 +++
 .../__tests__/ArchiveExplorer-test-react.js   | 14 +++-
 .../__tests__/Breadcrumbs-test-react.js       | 57 +++++++++++++
 src/lib/viewers/archive/constants.js          |  8 +-
 8 files changed, 200 insertions(+), 40 deletions(-)
 create mode 100644 src/lib/viewers/archive/ArchiveExplorer.scss
 create mode 100644 src/lib/viewers/archive/Breadcrumbs.js
 create mode 100644 src/lib/viewers/archive/Breadcrumbs.scss
 create mode 100644 src/lib/viewers/archive/__tests__/Breadcrumbs-test-react.js

diff --git a/src/i18n/en-US.properties b/src/i18n/en-US.properties
index edc9f4699..69f66c989 100644
--- a/src/i18n/en-US.properties
+++ b/src/i18n/en-US.properties
@@ -86,6 +86,8 @@ filename=Filename
 last_modified_date=Last modified date
 # Label for size column name
 size=Size
+# Shown as the title in the breadcrumbs while searching.
+search_results=Search Results
 
 # Media Preview
 # Label for autoplay in media player
diff --git a/src/lib/viewers/archive/ArchiveExplorer.js b/src/lib/viewers/archive/ArchiveExplorer.js
index 9e23d7b25..894bff8ad 100644
--- a/src/lib/viewers/archive/ArchiveExplorer.js
+++ b/src/lib/viewers/archive/ArchiveExplorer.js
@@ -12,7 +12,9 @@ import {
 import VirtualizedTable from 'box-ui-elements/es/features/virtualized-table';
 import { addLocaleData } from 'react-intl';
 import { Column } from 'react-virtualized/dist/es/Table/index';
-import { TABLE_COLUMNS } from './constants';
+import Breadcrumbs from './Breadcrumbs';
+import { TABLE_COLUMNS, VIEWS } from './constants';
+import './ArchiveExplorer.scss';
 
 const language = __LANGUAGE__; // eslint-disable-line
 const { KEY_NAME, KEY_MODIFIED_AT, KEY_SIZE } = TABLE_COLUMNS;
@@ -63,6 +65,7 @@ class ArchiveExplorer extends React.Component {
 
         this.state = {
             fullPath: props.itemCollection.find(info => !info.parent).absolute_path,
+            view: VIEWS.VIEW_FOLDER,
         };
     }
 
@@ -121,6 +124,14 @@ class ArchiveExplorer extends React.Component {
         });
     };
 
+    /**
+     * Handle click event, update fullPath state
+     *
+     * @param {string} fullPath - target folder path
+     * @return {void}
+     */
+    handleClickFullPath = fullPath => this.setState({ fullPath });
+
     /**
      * render data
      *
@@ -128,46 +139,45 @@ class ArchiveExplorer extends React.Component {
      */
     render() {
         const { itemCollection } = this.props;
-        const { fullPath } = this.state;
+        const { fullPath, view } = this.state;
         const itemList = this.getItemList(itemCollection, fullPath);
 
         return (
             <Internationalize language={language} messages={elementsMessages}>
-                <VirtualizedTable
-                    className="ArchiveFilesTable"
-                    rowData={itemList}
-                    rowGetter={this.getRowData(itemList)}
-                >
-                    {intl => [
-                        <Column
-                            key={KEY_NAME}
-                            cellRenderer={itemNameCellRenderer(intl, this.handleClick)}
-                            dataKey={KEY_NAME}
-                            disableSort
-                            flexGrow={3}
-                            label={__('filename')}
-                            width={1}
-                        />,
-                        <Column
-                            key={KEY_MODIFIED_AT}
-                            cellRenderer={readableTimeCellRenderer}
-                            dataKey={KEY_MODIFIED_AT}
-                            disableSort
-                            flexGrow={2}
-                            label={__('last_modified_date')}
-                            width={1}
-                        />,
-                        <Column
-                            key={KEY_SIZE}
-                            cellRenderer={sizeCellRenderer()}
-                            dataKey={KEY_SIZE}
-                            disableSort
-                            flexGrow={1}
-                            label={__('size')}
-                            width={1}
-                        />,
-                    ]}
-                </VirtualizedTable>
+                <div className="bp-ArchiveExplorer">
+                    <Breadcrumbs fullPath={fullPath} onClick={this.handleClickFullPath} view={view} />
+                    <VirtualizedTable rowData={itemList} rowGetter={this.getRowData(itemList)}>
+                        {intl => [
+                            <Column
+                                key={KEY_NAME}
+                                cellRenderer={itemNameCellRenderer(intl, this.handleClick)}
+                                dataKey={KEY_NAME}
+                                disableSort
+                                flexGrow={3}
+                                label={__('filename')}
+                                width={1}
+                            />,
+                            <Column
+                                key={KEY_MODIFIED_AT}
+                                cellRenderer={readableTimeCellRenderer}
+                                dataKey={KEY_MODIFIED_AT}
+                                disableSort
+                                flexGrow={2}
+                                label={__('last_modified_date')}
+                                width={1}
+                            />,
+                            <Column
+                                key={KEY_SIZE}
+                                cellRenderer={sizeCellRenderer()}
+                                dataKey={KEY_SIZE}
+                                disableSort
+                                flexGrow={1}
+                                label={__('size')}
+                                width={1}
+                            />,
+                        ]}
+                    </VirtualizedTable>
+                </div>
             </Internationalize>
         );
     }
diff --git a/src/lib/viewers/archive/ArchiveExplorer.scss b/src/lib/viewers/archive/ArchiveExplorer.scss
new file mode 100644
index 000000000..8eaac2ed4
--- /dev/null
+++ b/src/lib/viewers/archive/ArchiveExplorer.scss
@@ -0,0 +1,6 @@
+.bp-ArchiveExplorer {
+    display: flex;
+    flex-direction: column;
+    width: 100%;
+    height: 100%;
+}
diff --git a/src/lib/viewers/archive/Breadcrumbs.js b/src/lib/viewers/archive/Breadcrumbs.js
new file mode 100644
index 000000000..724fe2436
--- /dev/null
+++ b/src/lib/viewers/archive/Breadcrumbs.js
@@ -0,0 +1,58 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+import Breadcrumb from 'box-ui-elements/es/components/breadcrumb';
+import PlainButton from 'box-ui-elements/es/components/plain-button/PlainButton';
+import { VIEWS } from './constants';
+import './Breadcrumbs.scss';
+
+class Breadcrumbs extends React.PureComponent {
+    static propTypes = {
+        fullPath: PropTypes.string.isRequired,
+        onClick: PropTypes.func.isRequired,
+        view: PropTypes.string.isRequired,
+    };
+
+    /**
+     * Split full path string to path items
+     *
+     * @param {string} fullPath - Full path for current folder
+     * @return {Array<Object>} path items including name and path string
+     */
+    getPathItems = fullPath => {
+        const pathNames = fullPath.split('/').slice(0, -1);
+        // join path names from root to current index to get absolute path
+        const getAbsolutePath = index => pathNames.slice(0, index + 1).join('/');
+
+        return pathNames.map((name, index) => ({
+            name,
+            path: `${getAbsolutePath(index)}/`,
+        }));
+    };
+
+    /**
+     * render breadcrumbs
+     *
+     * @return {jsx} Breadcrumbs
+     */
+    render() {
+        const { fullPath, onClick, view } = this.props;
+
+        return (
+            <div className="bp-Breadcrumbs">
+                <Breadcrumb>
+                    {view === VIEWS.VIEW_SEARCH ? (
+                        <span>{__('search_results')}</span>
+                    ) : (
+                        this.getPathItems(fullPath).map(pathItem => (
+                            <PlainButton key={pathItem.path} onClick={() => onClick(pathItem.path)} type="button">
+                                {pathItem.name}
+                            </PlainButton>
+                        ))
+                    )}
+                </Breadcrumb>
+            </div>
+        );
+    }
+}
+
+export default Breadcrumbs;
diff --git a/src/lib/viewers/archive/Breadcrumbs.scss b/src/lib/viewers/archive/Breadcrumbs.scss
new file mode 100644
index 000000000..4a8404f36
--- /dev/null
+++ b/src/lib/viewers/archive/Breadcrumbs.scss
@@ -0,0 +1,11 @@
+@import '~box-ui-elements/es/styles/variables';
+
+.bp-Breadcrumbs {
+    display: flex;
+    flex: 0 0 50px;
+    align-items: center;
+    justify-content: space-between;
+    padding: 0 20px 0 25px;
+    border-bottom: 1px solid $bdl-gray-10;
+    box-shadow: 0 4px 6px -2px $transparent-black;
+}
diff --git a/src/lib/viewers/archive/__tests__/ArchiveExplorer-test-react.js b/src/lib/viewers/archive/__tests__/ArchiveExplorer-test-react.js
index 9877d3c3f..2ba5a019e 100644
--- a/src/lib/viewers/archive/__tests__/ArchiveExplorer-test-react.js
+++ b/src/lib/viewers/archive/__tests__/ArchiveExplorer-test-react.js
@@ -68,9 +68,11 @@ describe('lib/viewers/archive/ArchiveExplorer', () => {
     });
 
     describe('render()', () => {
-        it('should render VirtualizedTable', () => {
+        it('should render correct components', () => {
             const component = shallow(<ArchiveExplorer itemCollection={data} />);
 
+            expect(component.find('.bp-ArchiveExplorer').length).to.equal(1);
+            expect(component.find('Breadcrumbs').length).to.equal(1);
             expect(component.find('Internationalize').length).to.equal(1);
             expect(component.find('InjectIntl(VirtualizedTable)').length).to.equal(1);
         });
@@ -86,6 +88,16 @@ describe('lib/viewers/archive/ArchiveExplorer', () => {
         });
     });
 
+    describe('handleClickFullPath()', () => {
+        it('should set state when handleClickFullPath() is called', () => {
+            const component = shallow(<ArchiveExplorer itemCollection={data} />);
+
+            component.instance().handleClickFullPath('test/subfolder/');
+
+            expect(component.state().fullPath).to.equal('test/subfolder/');
+        });
+    });
+
     describe('getRowData()', () => {
         it('should return correct row data', () => {
             const component = shallow(<ArchiveExplorer itemCollection={data} />);
diff --git a/src/lib/viewers/archive/__tests__/Breadcrumbs-test-react.js b/src/lib/viewers/archive/__tests__/Breadcrumbs-test-react.js
new file mode 100644
index 000000000..7c507dbee
--- /dev/null
+++ b/src/lib/viewers/archive/__tests__/Breadcrumbs-test-react.js
@@ -0,0 +1,57 @@
+import React from 'react';
+import { shallow } from 'enzyme';
+import sinon from 'sinon';
+import Breadcrumbs from '../Breadcrumbs';
+import { VIEWS } from '../constants';
+
+const sandbox = sinon.sandbox.create();
+let fullPath;
+let onClick;
+let view;
+
+describe('lib/viewers/archive/Breadcrumbs', () => {
+    beforeEach(() => {
+        fullPath = 'test/subfolder/';
+        onClick = sandbox.stub();
+        view = VIEWS.VIEW_FOLDER;
+    });
+
+    afterEach(() => {
+        sandbox.verifyAndRestore();
+    });
+
+    describe('render()', () => {
+        it('should render correct components', () => {
+            const component = shallow(<Breadcrumbs fullPath={fullPath} onClick={onClick} view={view} />);
+
+            expect(component.find('.bp-Breadcrumbs').length).to.equal(1);
+            expect(component.find('InjectIntl(Breadcrumb)').length).to.equal(1);
+            expect(component.find('PlainButton').length).to.equal(2);
+        });
+
+        it('should render search result if view is search', () => {
+            const component = shallow(<Breadcrumbs fullPath={fullPath} onClick={onClick} view={VIEWS.VIEW_SEARCH} />);
+
+            expect(component.find('span').text()).to.equal(__('search_results'));
+        });
+    });
+
+    describe('getPathItems()', () => {
+        it('should return correct path items', () => {
+            const component = shallow(<Breadcrumbs fullPath={fullPath} onClick={onClick} view={view} />);
+
+            const pathItems = component.instance().getPathItems(fullPath);
+
+            expect(pathItems).to.eql([
+                {
+                    name: 'test',
+                    path: 'test/',
+                },
+                {
+                    name: 'subfolder',
+                    path: 'test/subfolder/',
+                },
+            ]);
+        });
+    });
+});
diff --git a/src/lib/viewers/archive/constants.js b/src/lib/viewers/archive/constants.js
index c5b2c697f..2ad6b50d9 100644
--- a/src/lib/viewers/archive/constants.js
+++ b/src/lib/viewers/archive/constants.js
@@ -4,5 +4,9 @@ const TABLE_COLUMNS = {
     KEY_SIZE: 'key_size',
 };
 
-// eslint-disable-next-line import/prefer-default-export
-export { TABLE_COLUMNS };
+const VIEWS = {
+    VIEW_FOLDER: 'folder',
+    VIEW_SEARCH: 'search',
+};
+
+export { TABLE_COLUMNS, VIEWS };