From 8c81fb7c2e6e9842570d27a84b1a1c600c82c16b Mon Sep 17 00:00:00 2001
From: Ulrich-Matthias Schäfer <ulima.ums@googlemail.com>
Date: Thu, 8 Nov 2018 16:06:39 +0100
Subject: added possibility to pass attribues into a constructor like: `new
 SVG.Rect({width:100})`

---
 src/utils/adopter.js | 26 +++++++++++++++++++++++---
 1 file changed, 23 insertions(+), 3 deletions(-)

(limited to 'src/utils')

diff --git a/src/utils/adopter.js b/src/utils/adopter.js
index 8017359..6880399 100644
--- a/src/utils/adopter.js
+++ b/src/utils/adopter.js
@@ -37,7 +37,7 @@ export function makeInstance (element) {
 }
 
 export function nodeOrNew (name, node) {
-  return node || makeNode(name)
+  return node instanceof window.Node ? node : makeNode(name)
 }
 
 // Adopt existing svg elements
@@ -102,14 +102,34 @@ export function assignNewId (node) {
 }
 
 // Method for extending objects
-export function extend (modules, methods) {
+export function extend (modules, methods, attrCheck) {
   var key, i
 
   modules = Array.isArray(modules) ? modules : [modules]
 
   for (i = modules.length - 1; i >= 0; i--) {
     for (key in methods) {
-      modules[i].prototype[key] = methods[key]
+      let method = methods[key]
+      if (attrCheck) {
+        method = wrapWithAttrCheck(methods[key])
+      }
+      modules[i].prototype[key] = method
+    }
+  }
+}
+
+export function extendWithAttrCheck (...args) {
+  extend(...args, true)
+}
+
+export function wrapWithAttrCheck (fn) {
+  return function (...args) {
+    let o = args[args.length - 1]
+
+    if (o && !o.prototype && !(o instanceof Array) && typeof o === 'object') {
+      return fn.apply(this, args.slice(0, -1)).attr(o)
+    } else {
+      return fn.apply(this, args)
     }
   }
 }
-- 
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