Example usage for org.apache.wicket.ajax AjaxRequestTarget prependJavaScript

Introduction

In this page you can find the example usage for org.apache.wicket.ajax AjaxRequestTarget prependJavaScript.

Prototype

void prependJavaScript(CharSequence javascript);

Source Link

Document

Adds javascript that will be evaluated on the client side before components are replaced.

Usage

From source file:org.wicketstuff.yui.markup.html.container.YuiWindows.java

License:Apache License

/**
 * Add a window.//from   w  w w.java 2 s .com
 * <p>
 * If this is called during an AJAX call, the changes are automatically
 * added to the ajax request target.
 * 
 * @param window the new window (not null)
 * @return the component id of the new window (used to remove it)
 */
public String addWindow(final IYuiWindow window) {
    YuiPanel yuiPanel = new YuiPanel(getRepeater().newChildId()) {
        @Override
        protected String getOpts() {
            return newOptions(window.getDimension(), window.getAdditionalOpts());
        }

        @Override
        protected String getResizeOpts() {
            return "{handles : ['br'], proxy: true, status: true, animate: false}";
        }

        @Override
        protected Component newBodyPanel(String id) {
            return window.newBody(id);
        }

        @Override
        protected Component newFooterPanel(String id) {
            return window.newFooter(id);
        }

        @Override
        protected Component newHeaderPanel(String id) {
            return window.newHeader(id);
        }

        @Override
        protected void onHide(AjaxRequestTarget target, String type) {
            getRepeater().remove(this);
            removeElementFromDom(target, getMarkupId());
        }
    };
    yuiPanel.setOutputMarkupId(true);
    yuiPanel.setUsesOverlayManager(true);
    getRepeater().add(yuiPanel);

    AjaxRequestTarget target = AjaxRequestTarget.get();
    if (target != null) {
        String createDiv = "(function(){var c=document.createElement('div');c.id='%s';Wicket.$('%s').appendChild(c)})();";
        target.prependJavascript(String.format(createDiv, yuiPanel.getMarkupId(), getMarkupId()));
        target.addComponent(yuiPanel);
        // TODO: find out why javascript of yuiPanel's header contributor
        // fails during the AJAX update in FireFox, works fine in IE.
    }

    return yuiPanel.getId();
}

From source file:org.wicketstuff.yui.markup.html.cropp.ImageCropper.java

License:Apache License

protected WebMarkupContainer newLinkComponent(String id) {
    return new AjaxLink<Void>(id) {
        private static final long serialVersionUID = 1L;

        @Override// ww  w .  j  a  va 2 s  . c  om
        public void onClick(AjaxRequestTarget target) {
            target.prependJavascript("" + callbackBehavior.getEventHandler());
        }
    };
}