1 files changed, 49 insertions, 0 deletions
diff --git a/node_modules/svgo/plugins/removeViewBox.js b/node_modules/svgo/plugins/removeViewBox.js
new file mode 100644
index 00000000..5618d8bd
--- /dev/null
+++ b/node_modules/svgo/plugins/removeViewBox.js
@@ -0,0 +1,49 @@
+'use strict';
+
+exports.name = 'removeViewBox';
+exports.description = 'removes viewBox attribute when possible';
+
+const viewBoxElems = ['svg', 'pattern', 'symbol'];
+
+/**
+ * Remove viewBox attr which coincides with a width/height box.
+ *
+ * @see https://www.w3.org/TR/SVG11/coords.html#ViewBoxAttribute
+ *
+ * @example
+ * <svg width="100" height="50" viewBox="0 0 100 50">
+ *             ⬇
+ * <svg width="100" height="50">
+ *
+ * @author Kir Belevich
+ *
+ * @type {import('./plugins-types').Plugin<'removeViewBox'>}
+ */
+exports.fn = () => {
+  return {
+    element: {
+      enter: (node, parentNode) => {
+        if (
+          viewBoxElems.includes(node.name) &&
+          node.attributes.viewBox != null &&
+          node.attributes.width != null &&
+          node.attributes.height != null
+        ) {
+          // TODO remove width/height for such case instead
+          if (node.name === 'svg' && parentNode.type !== 'root') {
+            return;
+          }
+          const nums = node.attributes.viewBox.split(/[ ,]+/g);
+          if (
+            nums[0] === '0' &&
+            nums[1] === '0' &&
+            node.attributes.width.replace(/px$/, '') === nums[2] && // could use parseFloat too
+            node.attributes.height.replace(/px$/, '') === nums[3]
+          ) {
+            delete node.attributes.viewBox;
+          }
+        }
+      },
+    },
+  };
+};