From b230e65e74da43e179b4fd571d2abc903bdbada0 Mon Sep 17 00:00:00 2001
From: Bruno Windels <brunow@matrix.org>
Date: Thu, 24 Jan 2019 16:44:36 +0100
Subject: [PATCH] prevent height doubling when resizing

caused by mixing up absolute height with incremental height
---
 src/resizer/distributors/roomsublist2.js | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/src/resizer/distributors/roomsublist2.js b/src/resizer/distributors/roomsublist2.js
index 2a815cf3b0..2db4db9b80 100644
--- a/src/resizer/distributors/roomsublist2.js
+++ b/src/resizer/distributors/roomsublist2.js
@@ -71,7 +71,7 @@ export class Layout {
     openHandle(id) {
         const index = this._getSectionIndex(id);
         //log(`openHandle resolved ${id} to ${index}`);
-        return new Handle(this, index);
+        return new Handle(this, index, this._originalHeights[index]);
     }
 
     _getAvailableHeight() {
@@ -258,13 +258,14 @@ export class Layout {
 }
 
 class Handle {
-    constructor(layout, anchor) {
+    constructor(layout, anchor, height) {
         this._layout = layout;
         this._anchor = anchor;
+        this._initialHeight = height;
     }
 
-    setOffset(offset) {
-        this._layout._relayout(this._anchor, offset);
+    setHeight(height) {
+        this._layout._relayout(this._anchor, height - this._initialHeight);
     }
 
     finish() {
@@ -283,7 +284,7 @@ export class Distributor extends FixedDistributor {
         this._handle.finish();
     }
 
-    resize(offset) {
-        this._handle.setOffset(offset);
+    resize(height) {
+        this._handle.setHeight(height);
     }
 }