From 07a1f8456b219feae3fbaf4db1e6fee1ad48d530 Mon Sep 17 00:00:00 2001
From: Zeno Rocha <hi@zenorocha.com>
Date: Tue, 1 Mar 2016 15:38:25 -0800
Subject: [PATCH] Throws error when disabled or readonly attributes are used on
 target element Fixes #41

---
 src/clipboard-action.js | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/clipboard-action.js b/src/clipboard-action.js
index f9863ff..da0496d 100644
--- a/src/clipboard-action.js
+++ b/src/clipboard-action.js
@@ -179,6 +179,14 @@ class ClipboardAction {
     set target(target) {
         if (target !== undefined) {
             if (target && typeof target === 'object' && target.nodeType === 1) {
+                if (this.action === 'copy' && target.hasAttribute('disabled')) {
+                    throw new Error('Invalid "target" attribute. Please use "readonly" instead of "disabled" attribute');
+                }
+
+                if (this.action === 'cut' && (target.hasAttribute('readonly') || target.hasAttribute('disabled'))) {
+                    throw new Error('Invalid "target" attribute. You can\'t cut text from elements with "readonly" or "disabled" attributes');
+                }
+
                 this._target = target;
             }
             else {