如何解决第一次呈现页面时如何为模态窗口生成空div?
您能否建议如何在第一次呈现页面时为模态窗口生成一个空的“div”标签? 'div' 内容将通过 ajax 请求获取。 我想避免两次获取模态窗口内容 - 首先是在呈现页面时,然后是在单击链接以显示模态窗口时。
我不使用 wicket 模态窗口实现。
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:
MainPage.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>
但现在我面临这个问题:
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?
我使用 Wicket 9。
解决方法
向页面添加一个空的 WebMarkupContainer 而不是您的面板,确保您调用 setOutputMarkupId(true) 以便它可以在 ajax 调用中刷新。然后将其替换为 Link 的 onClick(AjaxRequestTarget target) 方法中的面板。
,感谢您的提示。我需要更改我的实现,但现在它可以工作了。
// 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);
}
};
}
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