From 091bbd29d821719675b5d8085f4c1d12af1628c6 Mon Sep 17 00:00:00 2001
From: John Kenny <johnkenny54@yahoo.com>
Date: Sun, 28 Jan 2024 16:23:56 -0800
Subject: [PATCH] Treat <path> with opacity:0 as non-rendering node.

---
 plugins/removeHiddenElems.js              |  4 ++++
 test/plugins/removeHiddenElems.19.svg.txt | 28 +++++++++++++++++++++++
 2 files changed, 32 insertions(+)
 create mode 100644 test/plugins/removeHiddenElems.19.svg.txt

diff --git a/plugins/removeHiddenElems.js b/plugins/removeHiddenElems.js
index 995ecff65..79d51504e 100644
--- a/plugins/removeHiddenElems.js
+++ b/plugins/removeHiddenElems.js
@@ -143,6 +143,10 @@ export const fn = (root, params) => {
           computedStyle.opacity.type === 'static' &&
           computedStyle.opacity.value === '0'
         ) {
+          if (node.name === 'path') {
+            nonRenderedNodes.set(node, parentNode);
+            return visitSkip;
+          }
           removeElement(node, parentNode);
         }
       },
diff --git a/test/plugins/removeHiddenElems.19.svg.txt b/test/plugins/removeHiddenElems.19.svg.txt
new file mode 100644
index 000000000..7101c1bf4
--- /dev/null
+++ b/test/plugins/removeHiddenElems.19.svg.txt
@@ -0,0 +1,28 @@
+Preserve referenced path, even when path has opacity=0.
+
+===
+
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+    <defs>
+        <path id="path2" d="M200 200 l50 -300" style="opacity:0"/>
+    </defs>
+    <text style="font-size:24px;">
+        <textPath xlink:href="#path2">
+        this is path 2
+        </textPath>
+    </text>
+    <path id="path1" d="M200 200 l50 -300" style="opacity:0"/>
+</svg>
+
+@@@
+
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+    <defs>
+        <path id="path2" d="M200 200 l50 -300" style="opacity:0"/>
+    </defs>
+    <text style="font-size:24px;">
+        <textPath xlink:href="#path2">
+        this is path 2
+        </textPath>
+    </text>
+</svg>