Improve isInputFocused method in Canvas

src/canvas/config/config.js

@@ -24,5 +24,12 @@ module.exports = {
    *  return component.getName();
    * }
    */
-  customBadgeLabel: ''
+  customBadgeLabel: '',
+
+  /**
+   * When some textable component is selected and focused (eg. input or text component) the editor
+   * stops some commands (eg. disables the copy/paste of components with CTRL+C/V to allow the copy/paste of the text).
+   * This option allows to customize, by a selector, which element should not be considered textable
+   */
+  notTextable: ['button', 'input[type=checkbox]', 'input[type=radio]']
 };

src/canvas/index.js

@@ -409,11 +409,11 @@ module.exports = () => {
      * @private
      */
     isInputFocused() {
-      let contentDocument = this.getFrameEl().contentDocument;
-      return (
-        contentDocument.activeElement &&
-        contentDocument.activeElement.tagName !== 'BODY'
-      );
+      const doc = this.getDocument();
+      const toIgnore = ['body', ...this.getConfig().notTextable];
+      const focused = doc && doc.activeElement;
+
+      return focused && !toIgnore.some(item => focused.matches(item));
     },
 
     /**