1 files changed, 118 insertions, 0 deletions
diff --git a/foundation-default-colours/static/js/foundation/foundation.magellan.js b/foundation-default-colours/static/js/foundation/foundation.magellan.js
new file mode 100644
index 0000000..586741b
--- /dev/null
+++ b/foundation-default-colours/static/js/foundation/foundation.magellan.js
@@ -0,0 +1,118 @@
+;(function ($, window, document, undefined) {
+  'use strict';
+
+  Foundation.libs.magellan = {
+    name : 'magellan',
+
+    version : '5.0.0',
+
+    settings : {
+      active_class: 'active',
+      threshold: 0
+    },
+
+    init : function (scope, method, options) {
+      this.fixed_magellan = $("[data-magellan-expedition]");
+      this.set_threshold();
+      this.last_destination = $('[data-magellan-destination]').last();
+      this.events();
+    },
+
+    events : function () {
+      var self = this;
+
+      $(this.scope)
+        .off('.magellan')
+        .on('arrival.fndtn.magellan', '[data-magellan-arrival]', function (e) {
+          var $destination = $(this),
+              $expedition = $destination.closest('[data-magellan-expedition]'),
+              active_class = $expedition.attr('data-magellan-active-class')
+                || self.settings.active_class;
+
+            $destination
+              .closest('[data-magellan-expedition]')
+              .find('[data-magellan-arrival]')
+              .not($destination)
+              .removeClass(active_class);
+            $destination.addClass(active_class);
+        });
+
+      this.fixed_magellan
+        .off('.magellan')
+        .on('update-position.fndtn.magellan', function() {
+          var $el = $(this);
+        })
+        .trigger('update-position');
+
+      $(window)
+        .off('.magellan')
+        .on('resize.fndtn.magellan', function() {
+          this.fixed_magellan.trigger('update-position');
+        }.bind(this))
+        .on('scroll.fndtn.magellan', function() {
+          var windowScrollTop = $(window).scrollTop();
+          self.fixed_magellan.each(function() {
+            var $expedition = $(this);
+            if (typeof $expedition.data('magellan-top-offset') === 'undefined') {
+              $expedition.data('magellan-top-offset', $expedition.offset().top);
+            }
+            if (typeof $expedition.data('magellan-fixed-position') === 'undefined') {
+              $expedition.data('magellan-fixed-position', false);
+            }
+            var fixed_position = (windowScrollTop + self.settings.threshold) > $expedition.data("magellan-top-offset");
+            var attr = $expedition.attr('data-magellan-top-offset');
+
+            if ($expedition.data("magellan-fixed-position") != fixed_position) {
+              $expedition.data("magellan-fixed-position", fixed_position);
+              if (fixed_position) {
+                $expedition.addClass('fixed');
+                $expedition.css({position:"fixed", top:0});
+              } else {
+                $expedition.removeClass('fixed');
+                $expedition.css({position:"", top:""});
+              }
+              if (fixed_position && typeof attr != 'undefined' && attr != false) {
+                $expedition.css({position:"fixed", top:attr + "px"});
+              }
+            }
+          });
+        });
+
+
+      if (this.last_destination.length > 0) {
+        $(window).on('scroll.fndtn.magellan', function (e) {
+          var windowScrollTop = $(window).scrollTop(),
+              scrolltopPlusHeight = windowScrollTop + $(window).height(),
+              lastDestinationTop = Math.ceil(self.last_destination.offset().top);
+
+          $('[data-magellan-destination]').each(function () {
+            var $destination = $(this),
+                destination_name = $destination.attr('data-magellan-destination'),
+                topOffset = $destination.offset().top - $destination.outerHeight(true) - windowScrollTop;
+            if (topOffset <= self.settings.threshold) {
+              $("[data-magellan-arrival='" + destination_name + "']").trigger('arrival');
+            }
+            // In large screens we may hit the bottom of the page and dont reach the top of the last magellan-destination, so lets force it
+            if (scrolltopPlusHeight >= $(self.scope).height() && lastDestinationTop > windowScrollTop && lastDestinationTop < scrolltopPlusHeight) {
+              $('[data-magellan-arrival]').last().trigger('arrival');
+            }
+          });
+        });
+      }
+    },
+
+    set_threshold : function () {
+      if (typeof this.settings.threshold !== 'number') {
+        this.settings.threshold = (this.fixed_magellan.length > 0) ?
+          this.fixed_magellan.outerHeight(true) : 0;
+      }
+    },
+
+    off : function () {
+      $(this.scope).off('.fndtn.magellan');
+      $(window).off('.fndtn.magellan');
+    },
+
+    reflow : function () {}
+  };
+}(jQuery, this, this.document));