From ae23354a093d2e80ca4bb1b3ef20cf8de9d0ab0f Mon Sep 17 00:00:00 2001
From: Andrey Smolko <andrey_smolko@epam.com>
Date: Tue, 12 Feb 2019 00:11:43 +0300
Subject: [PATCH] wrapper for tag lists to hide all tags

---
 src/components/common/tag.jsx              | 83 ++++++++++++++++++++--
 src/components/events-page/events-feed.jsx | 25 +++++--
 src/components/icons/down-arrow-icon.jsx   | 17 +++++
 src/components/icons/index.js              |  1 +
 4 files changed, 115 insertions(+), 11 deletions(-)
 create mode 100644 src/components/icons/down-arrow-icon.jsx

diff --git a/src/components/common/tag.jsx b/src/components/common/tag.jsx
index 77098ac33..8f9cf659a 100644
--- a/src/components/common/tag.jsx
+++ b/src/components/common/tag.jsx
@@ -1,6 +1,8 @@
-import React from 'react'
+import React, { Component } from 'react'
 import PropTypes from 'prop-types'
 import styled, { withTheme } from 'styled-components'
+import { Media } from '../../utils/css-utils'
+import { DownArrowIcon } from '../icons'
 
 export const Tag = styled.li`
   font-size: 1.6rem;
@@ -25,6 +27,7 @@ const TagListLabel = styled.span`
 `
 
 const tagColors = ['lipstick', 'vividPurple', 'rouge', 'warmPurple']
+const morePlaqueColor = '#545454'
 
 const Tags = styled.ul`
   list-style: none;
@@ -33,11 +36,71 @@ const Tags = styled.ul`
   padding: 0;
 `
 
+export class TagListCutter extends Component {
+  constructor(props) {
+    super(props)
+    this.state = { allOpen: false }
+  }
+  handleChange() {
+    this.setState({ allOpen: !this.state.allOpen })
+  }
+  render() {
+    const { tagNumberDesktop, tagNumberMobile, tags } = this.props
+
+    return (
+      <Media.MobileOnly>
+        {isMobile => {
+          let currentNumber = isMobile ? tagNumberMobile : tagNumberDesktop
+          return currentNumber && currentNumber < tags.length
+            ? this.props.children(
+                this.state.allOpen ? tags : tags.slice(0, currentNumber),
+                ToogleLabel(() => this.handleChange(), this.state.allOpen),
+                MoreTag(() => this.handleChange(), this.state.allOpen),
+              )
+            : this.props.children(tags)
+        }}
+      </Media.MobileOnly>
+    )
+  }
+}
+
+const ToogleLabel = (onLableClick, allOpen) => (label, theme) => (
+  <div style={{ display: 'flex' }}>
+    <TagListLabel>{label}</TagListLabel>
+    <ToogleButton onClick={onLableClick} down={!allOpen}>
+      <DownArrowIcon fill={theme.greyishBrown} />
+    </ToogleButton>
+  </div>
+)
+
+const ToogleButton = styled.div`
+  display: flex;
+  transform: ${props => (props.down ? 'rotate(0deg)' : 'rotate(180deg)')};
+  cursor: pointer;
+`
+
+const MoreTag = (onLableClick, allOpen) => () =>
+  allOpen ? null : (
+    <Tag
+      key="moreTagsHere"
+      color={morePlaqueColor}
+      onClick={() => onLableClick()}>
+      more tags...
+    </Tag>
+  )
+
 export const TagList = withTheme(
-  ({ tags, selectedTags, label, theme, onTagClick }) => (
+  ({
+    tags,
+    selectedTags,
+    label,
+    theme,
+    onTagClick,
+    LabelComponent = label => <TagListLabel>{label}</TagListLabel>,
+    MoreTag = () => null,
+  }) => (
     <div>
-      {label && <TagListLabel>{label}</TagListLabel>}
-
+      {label && LabelComponent(label, theme)}
       {tags &&
         tags.length > 0 && (
           <Tags>
@@ -50,6 +113,7 @@ export const TagList = withTheme(
                 #{tag}
               </Tag>
             ))}
+            {MoreTag()}
           </Tags>
         )}
     </div>
@@ -67,3 +131,14 @@ TagList.defaultProps = {
   selectedTags: [],
   onTagClick: () => null,
 }
+
+TagListCutter.propTypes = {
+  tags: PropTypes.arrayOf(String).isRequired,
+  tagNumberDesktop: PropTypes.number,
+  tagNumberMobile: PropTypes.number,
+}
+
+TagListCutter.defaultProps = {
+  tagNumberDesktop: 0,
+  tagNumberMobile: 0,
+}
diff --git a/src/components/events-page/events-feed.jsx b/src/components/events-page/events-feed.jsx
index 695395074..2224569dd 100644
--- a/src/components/events-page/events-feed.jsx
+++ b/src/components/events-page/events-feed.jsx
@@ -5,7 +5,7 @@ import { chain, difference, either, isEmpty, pipe, uniq } from 'ramda'
 
 import BlockHeader from '../common/block-header'
 import MainContainer from '../common/main-container'
-import { TagList } from '../common/tag'
+import { TagList, TagListCutter } from '../common/tag'
 import EventList from './event-list'
 import { eventTags } from '../../utils/selectors'
 
@@ -20,12 +20,23 @@ let EventsFeed = ({
     <BlockHeader size="h1">Events</BlockHeader>
 
     {(filteredEventsTags.length > 0 || !selectedTags.length) && (
-      <TagList
-        label="Events tags"
-        tags={filteredEventsTags.length > 0 ? filteredEventsTags : selectedTags}
-        selectedTags={selectedTags}
-        onTagClick={toggleTag}
-      />
+      <TagListCutter
+        tagNumberDesktop={20}
+        tagNumberMobile={10}
+        tags={
+          filteredEventsTags.length > 0 ? filteredEventsTags : selectedTags
+        }>
+        {(visibleTags, ToogleLable, MoreTag) => (
+          <TagList
+            label="Events tags"
+            tags={visibleTags}
+            selectedTags={selectedTags}
+            onTagClick={toggleTag}
+            LabelComponent={ToogleLable}
+            MoreTag={MoreTag}
+          />
+        )}
+      </TagListCutter>
     )}
 
     {filteredEvents && (
diff --git a/src/components/icons/down-arrow-icon.jsx b/src/components/icons/down-arrow-icon.jsx
new file mode 100644
index 000000000..7aff2723e
--- /dev/null
+++ b/src/components/icons/down-arrow-icon.jsx
@@ -0,0 +1,17 @@
+import React from 'react'
+
+const DownArrowIcon = props => {
+  return (
+    <svg
+      fill={props.fill}
+      viewBox="0 0 24 24"
+      focusable="false"
+      width="26"
+      height="26"
+      xmlns="http://www.w3.org/2000/svg">
+      <path d="M16.59 8.59L12 13.17 7.41 8.59 6 10l6 6 6-6z" />
+    </svg>
+  )
+}
+
+export default DownArrowIcon
diff --git a/src/components/icons/index.js b/src/components/icons/index.js
index 2257891cc..dc375935b 100644
--- a/src/components/icons/index.js
+++ b/src/components/icons/index.js
@@ -8,3 +8,4 @@ export { default as PadlockIcon } from './padlock-icon'
 export { default as WebpurpleLogoIcon } from './webpurple-logo-icon'
 export { default as WatchIcon } from './watch'
 export { default as DownloadIcon } from './download'
+export { default as DownArrowIcon } from './down-arrow-icon'