refact: remove react-treeview dependency, rework resource sidebar

src/components/ResourcesSidebar/index.tsx

@@ -1,9 +1,9 @@
 import React, { useState } from "react"
-import Tree from "react-treeview"
 import { useStaticQuery, graphql } from "gatsby"
 import useBuildTree from "./useBuildTree"
 import useSidebar from "./../../hooks/useSidebar"
 import banner from "../../images/tph-banner.png"
+import TriangleDown from "../../icons/triangle-down.svg"
 import * as SC from "./styles"
 
 export interface IFile {
@@ -82,13 +82,11 @@ function Folder({ item }: { item: IFolder }) {
   }
 
   return (
-    <SC.TreeWrapper>
-      <Tree
-        collapsed={collapsed}
-        nodeLabel={<SC.Label onClick={toggleCollapse}>{item.title}</SC.Label>}
-      >
-        {item.children.map(node => plantTree(node))}
-      </Tree>
+    <SC.TreeWrapper collapsed={collapsed}>
+      <SC.Label onClick={toggleCollapse}>
+        <TriangleDown /> {item.title}
+      </SC.Label>
+      <SC.Children>{item.children.map(node => plantTree(node))}</SC.Children>
     </SC.TreeWrapper>
   )
 }
@@ -98,22 +96,15 @@ function FirstLevelFolder({ item, index }: { item: IFolder; index: number }) {
   const collapsed = current !== index
 
   return (
-    <SC.TreeWrapper>
-      <Tree
-        className="firstLevel"
-        collapsed={collapsed}
-        nodeLabel={
-          <SC.FirstLabel
-            className={!collapsed ? "active" : undefined}
-            onClick={() => setCurrent(index)}
-          >
-            {item.title}
-            <SC.CollapseToggler />
-          </SC.FirstLabel>
-        }
+    <SC.TreeWrapper className="firstLevel" collapsed={collapsed}>
+      <SC.FirstLabel
+        className={!collapsed ? "active" : undefined}
+        onClick={() => setCurrent(index)}
       >
-        {item.children.map(node => plantTree(node))}
-      </Tree>
+        {item.title}
+        <SC.CollapseToggler />
+      </SC.FirstLabel>
+      <SC.Children>{item.children.map(node => plantTree(node))}</SC.Children>
     </SC.TreeWrapper>
   )
 }

src/components/ResourcesSidebar/styles.tsx

@@ -4,7 +4,7 @@ import ChevronUp from "../../icons/chevron-up.svg"
 
 export const ResourcesSidebarWrapper = styled.div`
   box-sizing: border-box;
-  flex: 0 0 300px;
+  flex: 0 0 320px;
   background: #f9f9f9;
 `
 
@@ -13,25 +13,41 @@ export const Banner = styled.img`
   width: 100%;
 `
 
-export const TreeWrapper = styled.div`
-  width: 100%;
-
-  & + & {
-    border-top: 1px solid #dbdbdb;
-  }
+export const Children = styled.div`
+  padding-left: 16px;
+  padding-bottom: 8px;
+  display: flex;
+  flex-direction: column;
+  align-items: flex-start;
+  overflow: hidden;
 `
 
 export const Label = styled.div`
-  padding: 4px 0;
+  user-select: none;
+  position: relative;
+  padding: 8px 0;
+  cursor: pointer;
+  display: flex;
+  align-items: center;
+
+  svg {
+    position: absolute;
+    right: 100%;
+    margin-right: 4px;
+    width: 10px;
+  }
 `
 
 export const FirstLabel = styled.div`
+  user-select: none;
   display: flex;
   align-items: center;
   width: 100%;
+  box-sizing: border-box;
   padding: 12px 15px 12px 0;
   font-weight: 700;
   color: #a9a9a9;
+  cursor: pointer;
 
   &.active {
     color: #000;
@@ -56,62 +72,44 @@ export const FirstLabel = styled.div`
   }
 `
 
+export const TreeWrapper = styled.div<{ collapsed: boolean }>`
+  width: 100%;
+  font-size: 20px;
+
+  &.firstLevel {
+    overflow: hidden;
+  }
+
+  & + & {
+    border-top: 1px solid #dbdbdb;
+  }
+
+  ${Children} {
+    display: ${props => (props.collapsed ? "none" : "block")};
+    /* height: ${props => (props.collapsed ? 0 : "auto")}; */
+  }
+
+  & > ${Label} svg {
+    transform: rotate(${props => (props.collapsed ? -90 : 0)}deg);
+  }
+`
+
 export const CollapseToggler = styled(ChevronUp)``
 
 export const Inner = styled.div`
   padding-top: 30px;
   padding-left: 20px;
-
-  .tree-view {
-    overflow-y: hidden;
-  }
-
-  .tree-view_item {
-    display: flex;
-    cursor: pointer;
-  }
-
-  .tree-view_children {
-    margin-left: 16px;
-    display: flex;
-    flex-direction: column;
-    align-items: flex-start;
-  }
-
-  .tree-view_children-collapsed {
-    height: 0px;
-  }
-
-  .tree-view_arrow {
-    cursor: pointer;
-    margin-right: 6px;
-    display: inline-block;
-    -webkit-user-select: none;
-    -moz-user-select: none;
-    -ms-user-select: none;
-    user-select: none;
-  }
-
-  .tree-view_arrow:after {
-    content: "▾";
-  }
-
-  .tree-view_arrow.firstLevel {
-    display: none;
-  }
-
-  .tree-view_arrow-collapsed {
-    -webkit-transform: rotate(-90deg);
-    -moz-transform: rotate(-90deg);
-    -ms-transform: rotate(-90deg);
-    transform: rotate(-90deg);
-  }
 `
 
 export const PageLink = styled(Link)`
   display: block;
   padding: 4px 0;
-  color: #1c61df;
+  color: #000;
+  text-decoration: none;
+
+  & + & {
+    margin-top: 4px;
+  }
 
   &.active {
     font-weight: 700;