From 3522a53ad445073a5d2d3a803982655fb25be1f1 Mon Sep 17 00:00:00 2001
From: tophf <tophf@gmx.com>
Date: Mon, 11 Apr 2022 14:04:50 +0300
Subject: [PATCH] limit section's height to viewport

---
 edit/sections-editor-section.js | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/edit/sections-editor-section.js b/edit/sections-editor-section.js
index 9909e087..187bf625 100644
--- a/edit/sections-editor-section.js
+++ b/edit/sections-editor-section.js
@@ -241,6 +241,7 @@ function createSection(originalSection, genId, si) {
     if (appliesTo.length > 1 && appliesTo[0].all) {
       removeApply(appliesTo[0]);
     }
+    if (base) requestAnimationFrame(shrinkSectionBy1);
     emitSectionChange('apply');
     return apply;
   }
@@ -349,6 +350,15 @@ function createSection(originalSection, genId, si) {
       dirty.add(`${dirtyPrefix}.value`, value);
     }
   }
+
+  function shrinkSectionBy1() {
+    const cmEl = cm.display.wrapper;
+    const cmH = cmEl.offsetHeight;
+    const viewH = el.parentElement.offsetHeight;
+    if (el.offsetHeight > viewH && cmH > Math.min(viewH / 2, cm.display.sizer.offsetHeight + 30)) {
+      cmEl.style.height = (cmH - appliesToContainer.offsetHeight / (appliesTo.length || 1) | 0) + 'px';
+    }
+  }
 }
 
 function createResizeGrip(cm) {