1

@bind for macro component with custom class

asked 2015-03-25 14:01:53 +0800

viachris gravatar image viachris
27 5

updated 2015-03-25 14:15:54 +0800

Hello,

i have the following problem:

I created a new macro component. It combines a textbox with a popup, that is always shown, when the textbox has focus.

myMacro.zul:

 <zk>
    <textbox id="textbox" value="${arg.value}" width="${empty arg.width ? '98%' : arg.width}"/>
    <popup id="popup" width="200px" />

</zk>
<!-- It is registered in language-addon -->

For this Macro i created a HtmlMacroComponent class:

@ComponentAnnotation("value:@ZKBIND(ACCESS=both,SAVE_EVENT=onEdited)")    
public class MyMacro extends HtmlMacroComponent {

        private static final long serialVersionUID = 1L;

        @Wire
        private Textbox textbox;

        @Wire
        private Popup popup;

        private Label label;

        public MyMacro() {
            label = new Label();
            setMacroURI("/zul/components/myMacro.zul");
            setStyle("display:block");
            afterCompose();
            popup.appendChild(label);
        }

        @Listen("onFocus=#textbox")
        public void textboxFocus() {
            label.setValue("some Text");
            popup.open(textbox, "end_before");
        }
    }

In the .zul pages where i want to use the macro, i want to use @bind for a bean-field:

somePage.zul:

<myMacro value="@bind(vm.bean.field)" /> <!-- vm is the ViewModel Class -->

The Bean is a straightforward JPA-Entity.

My problem: the text i put into the textbox is not given to the bean (everything else works, the popup is shown and so on).

As an alternative to @ComponentAnnotation i found this: http://zkfiddle.org/sample/6sleo1/2-macro-with-manual-reference (link)

But it only works when using a macro component without a custom class. In my case i get a Property not found exception for the pojo.

I can't use @ref because we don't have PE or EE license.

Can someone help me?

ZK version is 6.5.3.

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1 Answer

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answered 2015-03-26 06:46:30 +0800

chillworld gravatar image chillworld flag of Belgium
5322 4 9
https://github.com/chillw...

updated 2015-03-27 19:22:52 +0800

Hey viachris,

Your doing it quite good but you only make a few small mistakes.

First mistake :

In the zul you have :

<textbox id="textbox" value="${arg.value}"

Don't set the value there.(in the zul)
What you are doing is only a just set the value once and nothing more.

Second mistake :

In addition of the first mistake, the value has to go to the getter and setter of value. So what you need in the Java class is :

public void setValue(String value) {
    textbox.setValue(value);
}

public String getValue() {
    return textbox.getValue();
}

@Listen("onChange=#textbox")
public void textboxChange() {
    Events.postEvent("onEdited", this, textbox.getValue());
}

And normally this should work.

Hope this can help you further.

Edit for comment getting "bean.string" :

Maybe it's possible through the binder or something.
I have to look that up and try and error that.

Easy solution should be :

<myMacro value="@bind(vm.bean.field)" from="bean.field"/>

And in the class you create a getter and setter like :

private String from;

public void setFrom(String from) {
    this.from = from;
}

public String getFrom() {
    return from;
}

It's surely not the most cleanest way but it's the only way I can say directly without testing some stuff.

Greetz Chill.

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Comments

Thanks for the answer, but even with your suggested changes the content of the textbox is not given to the bean. bean.field is still empty.

viachris ( 2015-03-26 07:09:20 +0800 )edit

try this now

chillworld ( 2015-03-26 10:20:58 +0800 )edit

Where do i get the 'value' from in the postEvent method?

viachris ( 2015-03-26 15:24:44 +0800 )edit

oh excuse me, textbox.getValue(), that's the problem of not having a fiddle and just write code here :)

chillworld ( 2015-03-26 16:26:48 +0800 )edit

That's it! Thank you very much! This helpes me immensely :) Sadly i can't upvote because i don't have enough points... that's kind of silly...

viachris ( 2015-03-27 13:37:28 +0800 )edit
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Asked: 2015-03-25 14:01:53 +0800

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Last updated: Mar 27 '15

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