From cd8d11b1373817ce4096d1aca2cca744707d5ba0 Mon Sep 17 00:00:00 2001
From: tophf <tophf@gmx.com>
Date: Sat, 7 Mar 2015 03:10:19 +0300
Subject: [PATCH] Scroll the clicked section into view

---
 edit.js | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/edit.js b/edit.js
index 35f2d1e7..58e651ac 100644
--- a/edit.js
+++ b/edit.js
@@ -29,6 +29,20 @@ function setupCodeMirror(textarea) {
 	});
 	cm.lastChange = cm.changeGeneration();
 	cm.on("change", indicateCodeChange);
+
+	// ensure the entire section is visible on focus
+	cm.on("focus", function(cm) {
+		var section = cm.display.wrapper.parentNode;
+		var bounds = section.getBoundingClientRect();
+		if ((bounds.bottom > window.innerHeight && bounds.top > 0) || (bounds.top < 0 && bounds.bottom < window.innerHeight)) {
+			if (bounds.top > window.innerHeight || bounds.top < 0) {
+				section.scrollIntoView();
+			} else {
+				window.scrollBy(0, bounds.bottom - window.innerHeight + 1);
+			}
+		}
+	});
+
 	editors.push(cm);
 }