您能建议如何在第一次呈现页面时为模式窗口生成一个空的"div"标记吗？"div"内容将通过ajax请求获取。我希望避免两次获取模式窗口内容——第一次是在呈现页面时，然后是在单击链接以显示模式窗口时。
我不使用wicket模式窗口实现。
我有一个基本的ModalBorder类。
ModalBorder.java
public class ModalBorder extends Border {
public ModalBorder(String id) {
super(id);
}
}
with ModalBorder.html markup
<wicket:border>
<div class="modal-background"></div>
<div class="modal-content">
<div class="box">
<wicket:body/>
</div>
</div>
</wicket:border>
AboutAppModalPanel.java
public class AboutModalPanel extends Panel {
public AboutModalPanel(String id) {
super(id);
setOutputMarkupId(true);
var mb = new ModalBorder("modalBorder");
mb.setRenderBodyOnly(true);
add(mb);
}
}
AboutAppModalPanel.html
<wicket:panel>
<div wicket:id="modalBorder">
<article class="media">
<div class="media-content">
<div class="content">
<p>
<strong>
About application content
</strong>
</p>
</div>
</div>
</article>
</div>
</wicket:panel>
我想实现以下输出：
主页.html
Page is rendered first time (with empty div)
<html>
<body>
...
<div class="modal" id="aboutAppModalPanel2">
<!-- modal is empty and hidden (not-active) -->
</div>
</body>
</html>
and then requesting modal content via ajax request
<html>
<body>
...
<div class="modal is-active" id="aboutAppModalPanel2">
<!-- modal is filled in and SHOWN (added 'is-active' class) -->
<div class="modal-background"></div>
<div class="modal-content">
<div class="box">
<article class="media">
<div class="media-content">
<div class="content">
<p><strong>About application content</strong>
...
</div>
</body>
</html>
但现在我面临的问题是：
Page is rendered first time (with filled in div)
<html>
<body>
...
<div class="modal" id="aboutAppModalPanel2">
<!-- modal is filled in and HIDDEN (not-active) -->
<div class="modal-background"></div>
<div class="modal-content">
<div class="box">
<article class="media">
<div class="media-content">
<div class="content">
<p><strong>About application content</strong>
...
</div>
</body>
</html>
and then requesting modal content via ajax request
<html>
<body>
...
<div class="modal is-active" id="aboutAppModalPanel2">
<!-- modal is filled in and SHOWN (added 'is-active' class) -->
<div class="modal-background"></div>
<div class="modal-content">
<div class="box">
<article class="media">
<div class="media-content">
<div class="content">
<p><strong>About application content</strong>
...
</div>
</body>
</html>
你能提出解决方案吗？
我用Wicket 9。
在页面中添加一个空的WebMarkupContainer，而不是面板，确保调用setOutputMarkupId(true(，以便在ajax调用中刷新它。然后用链接的onClick(AjaxRequestTarget(方法中的面板替换它。
感谢您的提示。我需要更改我的实现，但现在它起作用了。
// In page constructor:
// Instead of empty WebMarkupContainer you suggested an empty panel with setOutputMarkupId(true)
add(new AjaxEmptyPanel("aboutApp"));
add(showAboutAppLink());
// and AjaxLink:
private AjaxLink<String> showAboutAppLink() {
return new AjaxLink<>("showAboutApp", new ResourceModel("SHOW")) {
private static final long serialVersionUID = -3035458028030059416L;
@Override
public void onClick(AjaxRequestTarget ajaxRequestTarget) {
var aboutApp = new AboutAppModalPanel("aboutApp");
aboutApp.setOutputMarkupId(true);
getPage().replace(aboutApp);
ajaxRequestTarget.add(aboutApp);
}
};
}