关闭modalwindow在按键

StackOverflow https://stackoverflow.com/questions/5042426

题

我希望能够在用户按下键时关闭模态线槽，在我的情况下。

我有一个用于按键的JavaScript侦听器，调用CANCEL按钮ID的CLUCK事件： 

jQuery("#"+modalWindowInfo.closeButtonId).click();
.

是这样做的正确方法？

我想知道它是因为它在Chrome中工作但不在FF中，但它可能是由于我的具体实现。

有帮助吗？

解决方案

The 'right' way to do it is to call the server, then close it with the response. You can do this with an ajax behavior:

ModalTestPage.java

public class ModalTestPage extends WebPage {
    public ModalTestPage(PageParameters parameters) {
        super(parameters);

        final ModalWindow modal = new ModalWindow("modal");
        modal.setContent(new Fragment(modal.getContentId(), "window", this));
        add(modal);

        add(new AjaxLink<Void>("link") {
            @Override
            public void onClick(AjaxRequestTarget target) {
                modal.show(target);
            }
        });

        add(new CloseOnESCBehavior(modal));
    }

    private static class CloseOnESCBehavior extends AbstractDefaultAjaxBehavior {
        private final ModalWindow modal;
        public CloseOnESCBehavior(ModalWindow modal) {
            this.modal = modal;
        }    
        @Override
        protected void respond(AjaxRequestTarget target) {
            modal.close(target);
        }    
        @Override
        public void renderHead(Component component, IHeaderResponse response) {
            response.renderJavaScriptReference("https://ajax.googleapis.com/ajax/libs/jquery/1.5.0/jquery.min.js");
            response.renderJavaScript("" +
                "$(document).ready(function() {\n" +
                "  $(document).bind('keyup', function(evt) {\n" +
                "    if (evt.keyCode == 27) {\n" +
                getCallbackScript() + "\n" +
                "        evt.preventDefault();\n" +
                "    }\n" +
                "  });\n" +
                "});", "closeModal");
        }
    }
}

ModalTestPage.html

<html xmlns:wicket="http://wicket.apache.org">
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
</head>
<body>

  <a wicket:id="link">SHOW</a>
  <div wicket:id="modal"></div>

<wicket:fragment wicket:id="window">
  Press ESC to dismiss
</wicket:fragment>
</body>
</html>

其他提示

The example above is good, very good, however there is one issue which may be crucial for some programming users (was for me).

For the actual close to happen there are 2 ajax requests happening - first one is issued with the CloseOnESCBehavior which calls window.close. MW.close() would render javascript which would first do call to server to ask its windowClosedCallback, and would only then close (hide contents of) the modal window.

I'd suggest instead doing something like this - in the code of ModalWindow ctor: 

    add(new AbstractBehavior() {
        @Override
        public void renderHead(IHeaderResponse response) {
            response.renderOnDomReadyJavascript(
                    " if($(document).data('wicketWindowCloseBound')) {return;} "
                            + " $(document).data('wicketWindowCloseBound', true); "
                            + " $(document).bind('keyup', function(evt) {\n"
                            + "    if (evt.keyCode == 27) {\n"
                            + getCloseJavacript()
                            + "\n"
                            + "        evt.preventDefault();\n"
                            + "        evt.stopPropagation();\n"
                            + "    }\n"
                            + "  });\n");

        }
    });

Also, you can use Wicket Jquery UI

HTML

<div wicket:id="dialog">[dialog]</div>

Java

MessageDialog dialog = new MessageDialog("dialog", "Warning", "Is it ok?",
                        DialogButtons.OK_CANCEL, DialogIcon.WARN)
    {
        protected void onClose(AjaxRequestTarget target, DialogButton button)
        {
            if(button != null && button.equals(LBL_OK))
            {
                //do something here

                //note1: #equals() compare either DialogButton or String (button text)
                //note2: predefined button text are:
                //LBL_OK, LBL_CANCEL, LBL_YES, LBL_NO, LBL_CLOSE, LBL_SUBMIT
            }
        }   
    }

    this.add(dialog); //TODO: open it, using dialog.open(target);

And the ESC key works fine. You should see this aproach at Wicket JQuery UI demo page

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