merge primefaces#3448 (invisible recaptcha) into 6.2 branch

Author: cnsgithub

src/main/java/org/primefaces/component/captcha/CaptchaRenderer.java

@@ -66,6 +66,12 @@ protected void encodeMarkup(FacesContext context, Captcha captcha, String public
         writer.startElement("div", null);
         writer.writeAttribute("id", clientId, "id");
 
+        if (captcha.getSize() != null && "invisible".equals(captcha.getSize())) {
+            writer.writeAttribute("class", "g-recaptcha", null);
+            writer.writeAttribute("data-sitekey", publicKey, null);
+            writer.writeAttribute("data-size", "invisible", null);
+        }
+
         renderDynamicPassThruAttributes(context, captcha);
 
         writer.endElement("div");
@@ -74,7 +80,7 @@ protected void encodeMarkup(FacesContext context, Captcha captcha, String public
     protected void encodeScript(FacesContext context, Captcha captcha, String publicKey) throws IOException {
         String clientId = captcha.getClientId(context);
         WidgetBuilder wb = getWidgetBuilder(context);
-        wb.initWithDomReady("Captcha", captcha.resolveWidgetVar(), clientId);
+        wb.init("Captcha", captcha.resolveWidgetVar(), clientId);
 
         wb.attr("sitekey", publicKey)
                 .attr("theme", captcha.getTheme(), "light")
@@ -90,4 +96,4 @@ protected void encodeScript(FacesContext context, Captcha captcha, String public
     protected String getPublicKey(FacesContext context, Captcha captcha) {
         return context.getApplication().evaluateExpressionGet(context, context.getExternalContext().getInitParameter(Captcha.PUBLIC_KEY), String.class);
     }
-}
+}

src/main/resources/META-INF/resources/primefaces/captcha/captcha.js

@@ -7,15 +7,16 @@ PrimeFaces.widget.Captcha = PrimeFaces.widget.BaseWidget.extend({
         this._super(cfg);
         this.cfg.language = this.cfg.language||'en';
         var $this = this;
-        
+
         window[this.cfg.widgetVar + '_initCallback'] = function() {
             $this.render();
         };
-        
-        $(document.body).append('<script src="https://www.google.com/recaptcha/api.js?onload=' + this.cfg.widgetVar + '_initCallback&render=explicit&hl=' 
-                            + this.cfg.language +'" async defer>');
+
+        $(document.body).append('<script src="https://www.google.com/recaptcha/api.js?onload=' + this.cfg.widgetVar + '_initCallback&render=explicit&hl='
+            + this.cfg.language +'" async defer>');
+
     },
-    
+
     render: function() {
         $this = this;
         grecaptcha.render(this.jq.get(0), {
@@ -24,10 +25,14 @@ PrimeFaces.widget.Captcha = PrimeFaces.widget.BaseWidget.extend({
             'theme': this.cfg.theme,
             'callback': $this.cfg.callback,
             'expired-callback': $this.cfg.expired,
-            'size': this.cfg.size 
+            'size': this.cfg.size
         });
-        
+
+        if (this.cfg.size === 'invisible') {
+            grecaptcha.execute();
+        }
+
         window[this.cfg.widgetVar + '_initCallback'] = undefined;
     }
-    
+
 });