shim that exposes a synthetic
+// contentDocument.defaultView (an EventTarget), and bridges a ResizeObserver on the
+// parent to fire 'resize' events on that fake view -- which is exactly what vue-resize's
+// addResizeHandlers listens to. The synthetic 'load' event fires after insertion so
+// vue-resize wires up its handlers normally.
+//
+// See: https://github.com/OrcaSlicer/OrcaSlicer/issues/7210
+static void inject_vue_resize_workaround(wxWebView *webView)
+{
+ webView->AddUserScript(
+ "(function() {"
+ " 'use strict';"
+ " function isVueResizeObject(el) {"
+ " return el && el.tagName === 'OBJECT'"
+ " && el.type === 'text/html'"
+ " && el.getAttribute('aria-hidden') === 'true'"
+ " && el.getAttribute('tabindex') === '-1';"
+ " }"
+ " function isResizeObserverParent(p) {"
+ " return p && p.classList && p.classList.contains('resize-observer');"
+ " }"
+ " function makeShim(orig, parentForRO) {"
+ " var shim = document.createElement('div');"
+ " shim.setAttribute('aria-hidden', 'true');"
+ " shim.setAttribute('tabindex', '-1');"
+ " shim.style.display = 'none';"
+ " var fakeWin = document.createElement('div');"
+ " Object.defineProperty(shim, 'contentDocument', {"
+ " configurable: true,"
+ " get: function() { return { defaultView: fakeWin }; }"
+ " });"
+ " Object.defineProperty(shim, 'contentWindow', {"
+ " configurable: true,"
+ " get: function() { return fakeWin; }"
+ " });"
+ " if (typeof orig.onload === 'function') { shim.onload = orig.onload; }"
+ " queueMicrotask(function() {"
+ " if (parentForRO && typeof ResizeObserver !== 'undefined') {"
+ " var ro = new ResizeObserver(function() {"
+ " fakeWin.dispatchEvent(new Event('resize'));"
+ " });"
+ " ro.observe(parentForRO);"
+ " }"
+ " if (typeof shim.onload === 'function') {"
+ " try { shim.onload(new Event('load')); } catch (e) {}"
+ " }"
+ " shim.dispatchEvent(new Event('load'));"
+ " });"
+ " return shim;"
+ " }"
+ " var origAppend = Node.prototype.appendChild;"
+ " Node.prototype.appendChild = function(child) {"
+ " if (isResizeObserverParent(this) && isVueResizeObject(child)) {"
+ " return origAppend.call(this, makeShim(child, this));"
+ " }"
+ " return origAppend.call(this, child);"
+ " };"
+ " var origInsertBefore = Node.prototype.insertBefore;"
+ " Node.prototype.insertBefore = function(child, ref) {"
+ " if (isResizeObserverParent(this) && isVueResizeObject(child)) {"
+ " return origInsertBefore.call(this, makeShim(child, this), ref);"
+ " }"
+ " return origInsertBefore.call(this, child, ref);"
+ " };"
+ " console.log('[vr-fix] vue-resize WebKitGTK patch active');"
+ "})();",
+ wxWEBVIEW_INJECT_AT_DOCUMENT_START
+ );
+}
+#endif
+
PrinterWebView::PrinterWebView(wxWindow *parent)
: wxPanel(parent, wxID_ANY, wxDefaultPosition, wxDefaultSize)
, m_browser(nullptr)
@@ -43,6 +128,8 @@ PrinterWebView::PrinterWebView(wxWindow *parent)
}
#ifdef __linux__
+ inject_vue_resize_workaround(m_browser);
+
auto cookiesPath = boost::filesystem::path(data_dir() + "/cache/cookies.db");
auto wv = static_cast
(m_browser->GetNativeBackend());
auto wv_ctx = webkit_web_view_get_context(wv);
@@ -165,6 +252,10 @@ void PrinterWebView::SendAPIKey()
)",
m_apikey);
m_browser->RemoveAllUserScripts();
+#ifdef __linux__
+ // Re-inject the vue-resize/WebKitGTK workaround that RemoveAllUserScripts just cleared.
+ inject_vue_resize_workaround(m_browser);
+#endif
m_browser->AddUserScript(script);
m_browser->Reload();
From 374e4ad8a9a1e9e889290253192d13eef5c66eba Mon Sep 17 00:00:00 2001
From: SoftFever
Date: Tue, 19 May 2026 14:31:15 +0800
Subject: [PATCH 3/8] Follow up update for PR #13724: improve GC and shorten
comments
---
src/slic3r/GUI/PrinterWebView.cpp | 32 +++++++++++--------------------
1 file changed, 11 insertions(+), 21 deletions(-)
diff --git a/src/slic3r/GUI/PrinterWebView.cpp b/src/slic3r/GUI/PrinterWebView.cpp
index c4c5cbcc5f..6c20e98ce6 100644
--- a/src/slic3r/GUI/PrinterWebView.cpp
+++ b/src/slic3r/GUI/PrinterWebView.cpp
@@ -24,26 +24,10 @@ namespace Slic3r {
namespace GUI {
#ifdef __linux__
-// Workaround for crash in WebKitGTK when loading Fluidd < v1.37.0 or Mainsail < v2.16.1.
-// Their bundled vue-resize component detects container resizes by inserting
-//