1 files changed, 15 insertions, 8 deletions

diff --git a/src/ui/documentwidget.c b/src/ui/documentwidget.c
index 4063503f..b9aa551f 100644
--- a/src/ui/documentwidget.c
+++ b/src/ui/documentwidget.c
@@ -1533,18 +1533,25 @@ static const int homeRowKeys_[] = {
 static iBool handleCommand_DocumentWidget_(iDocumentWidget *d, const char *cmd) {
     iWidget *w = as_Widget(d);
     if (equal_Command(cmd, "window.resized") || equal_Command(cmd, "font.changed")) {
-        const iGmRun *mid = middleRun_DocumentWidget_(d);
-        const char *midLoc = (mid ? mid->text.start : NULL);
+        const iBool isHorizontalOnly =
+            argLabel_Command(cmd, "horiz") != 0 && !argLabel_Command(cmd, "vert");
         /* Alt/Option key may be involved in window size changes. */
         iChangeFlags(d->flags, showLinkNumbers_DocumentWidgetFlag, iFalse);
-        setWidth_GmDocument(d->doc, documentWidth_DocumentWidget_(d));
-        scroll_DocumentWidget_(d, 0);
-        if (midLoc) {
-            mid = findRunAtLoc_GmDocument(d->doc, midLoc);
-            if (mid) {
-                scrollTo_DocumentWidget_(d, mid_Rect(mid->bounds).y, iTrue);
+        if (isHorizontalOnly) {
+            const iGmRun *mid = middleRun_DocumentWidget_(d);
+            const char *midLoc = (mid ? mid->text.start : NULL);
+            setWidth_GmDocument(d->doc, documentWidth_DocumentWidget_(d));
+            scroll_DocumentWidget_(d, 0);
+            if (midLoc) {
+                mid = findRunAtLoc_GmDocument(d->doc, midLoc);
+                if (mid) {
+                    scrollTo_DocumentWidget_(d, mid_Rect(mid->bounds).y, iTrue);
+                }
             }
         }
+        else {
+            scroll_DocumentWidget_(d, 0); /* prevent overscroll */
+        }
         updateSideIconBuf_DocumentWidget_(d);
         updateOutline_DocumentWidget_(d);
         invalidate_DocumentWidget_(d);