From 0f041ab72bbd422308fdc5ee01f7fc1d4ae5460b Mon Sep 17 00:00:00 2001
From: Grant Kinney <grant@exygy.com>
Date: Mon, 17 Jul 2017 11:29:05 -0500
Subject: [PATCH] Adds accordions for displaying nested materials

---
 src/assets/fabricator/scripts/fabricator.js   | 46 +++++++++++++++++--
 .../fabricator/styles/partials/_controls.scss |  4 ++
 .../fabricator/styles/partials/_menu.scss     | 46 +++++++++++++++++++
 src/views/layouts/includes/f-menu.html        | 21 +++++++--
 4 files changed, 111 insertions(+), 6 deletions(-)

diff --git a/src/assets/fabricator/scripts/fabricator.js b/src/assets/fabricator/scripts/fabricator.js
index a2443093..a2d0db0b 100644
--- a/src/assets/fabricator/scripts/fabricator.js
+++ b/src/assets/fabricator/scripts/fabricator.js
@@ -57,6 +57,7 @@ fabricator.dom = {
   primaryMenu: document.querySelector('.f-menu'),
   menuItems: document.querySelectorAll('.f-menu li a'),
   menuToggle: document.querySelector('.f-menu-toggle'),
+  menuAccordions: document.querySelectorAll('.f-menu__accordion-toggle'),
 };
 
 
@@ -100,7 +101,7 @@ fabricator.setActiveItem = () => {
     // get current file and hash without first slash
     const loc = (window.location.pathname + window.location.hash);
     const current = loc.replace(/(^\/)([^#]+)?(#[\w\-\.]+)?$/ig, (match, slash, file, hash) => {
-      return (file || '') + (hash || '').split('.')[0];
+      return (file || '') + (hash || '');
     }) || 'index.html';
 
 
@@ -117,9 +118,17 @@ fabricator.setActiveItem = () => {
       } else {
         item.classList.remove('f-active');
       }
-
     }
 
+    //modify other accordions
+    for(var i = 0; i < fabricator.dom.menuAccordions.length; i++) {
+      var thisID = fabricator.dom.menuAccordions[i].getAttribute('href').split('#').pop();
+
+      // if it is the same item - i.e. the window loaded on a hash
+      if(current.indexOf(thisID) > -1 && fabricator.dom.menuAccordions[i]) {
+        fabricator.dom.menuAccordions[i].parentNode.classList.add('is-open');
+      }
+    }
   };
 
   window.addEventListener('hashchange', setActive);
@@ -196,7 +205,6 @@ fabricator.allItemsToggles = () => {
 
   // toggle all
   const toggleAllItems = (type, value) => {
-
     const button = document.querySelector(`.f-controls [data-f-toggle-control=${type}]`);
     const items = itemCache[type];
 
@@ -325,11 +333,43 @@ fabricator.setInitialMenuState = () => {
 
 };
 
+/**
+ * Open/Close menu accordions on click
+ */
+fabricator.accordions = () => {
+
+  for(var i = 0; i < fabricator.dom.menuAccordions.length; i++) {
+
+    fabricator.dom.menuAccordions[i].addEventListener('click', function (e) {
+      setActiveAccordion(e);
+    });
+    fabricator.dom.menuAccordions[i].parentNode.querySelectorAll('.control')[0].addEventListener('click', function(e) {
+      setActiveAccordion(e);
+    });
+  }
+
+  var setActiveAccordion = function(which) {
+    var classList = which.currentTarget.parentNode.classList;
+
+    if(classList.toString().indexOf('is-open') > 0) {
+      which.currentTarget.parentNode.classList.remove('is-open');
+    } else {
+      for(var a = 0; a < fabricator.dom.menuAccordions.length; a++) {
+        fabricator.dom.menuAccordions[a].parentNode.classList.remove('is-open');
+      }
+      which.currentTarget.parentNode.classList.add('is-open');
+    }
+  };
+
+  return fabricator;
+};
+
 
 /**
  * Initialization
  */
 fabricator
+ .accordions()
  .setInitialMenuState()
  .menuToggle()
  .allItemsToggles()
diff --git a/src/assets/fabricator/styles/partials/_controls.scss b/src/assets/fabricator/styles/partials/_controls.scss
index e48b6216..4e83318d 100644
--- a/src/assets/fabricator/styles/partials/_controls.scss
+++ b/src/assets/fabricator/styles/partials/_controls.scss
@@ -10,6 +10,10 @@
 		margin: 0;
 		padding: 1rem 0;
 
+		&.hidden {
+			display: none;
+		}
+
 		&.f-active {
 			box-shadow: inset 0 0.25rem 0 0 color(accent);
 
diff --git a/src/assets/fabricator/styles/partials/_menu.scss b/src/assets/fabricator/styles/partials/_menu.scss
index 0109f0e2..23ae397a 100644
--- a/src/assets/fabricator/styles/partials/_menu.scss
+++ b/src/assets/fabricator/styles/partials/_menu.scss
@@ -33,6 +33,7 @@
 	}
 
 	li {
+		position: relative;
 		list-style-type: none;
 		margin-top: 0;
 		margin-bottom: 0;
@@ -65,4 +66,49 @@
 			color: color(normal);
 		}
 	}
+
+	.f-menu__accordion {
+		li a {
+			padding-left: 2.7rem;
+			box-sizing: border-box
+		}
+
+		max-height: 0px;
+		overflow: hidden;
+		transition: max-height 0.3s ease;
+		-webkit-backface-visibility: hidden;
+	}
+
+	.f-menu__accordion-group {
+		.control {
+			position: absolute;
+			left: 10px;
+			top: 8px;
+			cursor: pointer;
+			width: 10px;
+			height: 10px;
+
+			&:after {
+				font-size: .75rem;
+				font-weight: bold;
+				content: '+';
+				display: block;
+				color: map-get($colors, menu-text) !important;
+			}
+		}
+
+		&.is-open {
+			.control {
+				left: 12px;
+
+				&:after {
+					content: '-';
+				}
+			}
+
+			.f-menu__accordion {
+				max-height: 1200px;
+			}
+		}
+	}
 }
diff --git a/src/views/layouts/includes/f-menu.html b/src/views/layouts/includes/f-menu.html
index cb57c768..8b12c418 100644
--- a/src/views/layouts/includes/f-menu.html
+++ b/src/views/layouts/includes/f-menu.html
@@ -14,9 +14,24 @@
 			<a href="{{@key}}.html" class="f-menu__heading">{{name}}</a>
 			<ul>
 				{{#each items}}
-				<li>
-					<a href="{{@../key}}.html#{{@key}}">{{name}}</a>
-				</li>
+					{{#if this.[data]}}
+						<li>
+						<a href="{{@../key}}.html#{{@key}}">{{name}}</a>
+					{{else}}
+						<li class="f-menu__accordion-group">
+							<div class="control"></div>
+							<a class="f-menu__accordion-toggle" href="{{@../key}}.html#{{@key}}">{{name}}</a>
+					{{/if}}
+						{{#unless this.[data]}}
+							<ul class="f-menu__accordion">
+								{{#each this.[items]}}
+									<li>
+										<a href="{{@../../key}}.html#{{@key}}">{{name}}</a>
+									</li>
+								{{/each}}
+							</ul>
+						{{/unless}}
+					</li>
 				{{/each}}
 			</ul>
 		</li>