From 61eae5c5f9881cab29712f6e696085baa977e1f9 Mon Sep 17 00:00:00 2001
From: Jeffrey Tse <jeffreytse.mail@gmail.com>
Date: Wed, 11 Sep 2019 12:19:34 +0800
Subject: release: v1.0.0

---
 _includes/extensions/hashlocate.html | 39 ++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 _includes/extensions/hashlocate.html

(limited to '_includes/extensions/hashlocate.html')

diff --git a/_includes/extensions/hashlocate.html b/_includes/extensions/hashlocate.html
new file mode 100644
index 0000000..d44b249
--- /dev/null
+++ b/_includes/extensions/hashlocate.html
@@ -0,0 +1,39 @@
+<script>
+  function hashLocate(hashValue) {
+    hashValue = hashValue.replace(/^.*#h-/, '');
+    var element = document.getElementById(hashValue);
+
+    if (!element) {
+      return;
+    }
+
+    var headerHeight = 0;
+    var header = document.querySelector('header');
+    if (header) {
+      headerHeight = header.offsetHeight;
+    }
+    var supportPageOffset = window.pageXOffset !== undefined;
+    var isCSS1Compat = ((document.compatMode || "") === "CSS1Compat");
+
+    var x = supportPageOffset ? window.pageXOffset : isCSS1Compat ? document.documentElement.scrollLeft : document.body.scrollLeft;
+    var y = supportPageOffset ? window.pageYOffset : isCSS1Compat ? document.documentElement.scrollTop : document.body.scrollTop;
+
+    var offsetY = element.offsetTop - headerHeight - 12;
+    if (y === offsetY) {
+      return;
+    }
+
+    window.scrollTo(x, offsetY);
+  }
+
+  // The first event occurred
+  if (window.location.hash) {
+    hashLocate(window.location.hash);
+  }
+
+  window.addEventListener('click', function(event) {
+    if (event.target.matches('a')) {
+      hashLocate(event.target.getAttribute('href'));
+    }
+  });
+</script>
-- 
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