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https://issues.apache.org/jira/browse/WICKET-4199?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Ernesto Reinaldo Barreiro updated WICKET-4199:
----------------------------------------------
Attachment: SubmitLink.java.patch
patch that adds method to class
> add a hook to SubmitLink that allows to insert arbitrary JavaScript before
> code that submit the form
> ------------------------------------------------------------------------------------------------------
>
> Key: WICKET-4199
> URL: https://issues.apache.org/jira/browse/WICKET-4199
> Project: Wicket
> Issue Type: Improvement
> Components: wicket
> Affects Versions: 1.5.2
> Reporter: Ernesto Reinaldo Barreiro
> Priority: Minor
> Labels: wicket
> Attachments: SubmitLink.java.patch
>
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> I need to execute some JavaScript before form is submmited and as method
> getTriggerJavaScrip is final I have to do it like
> SubmitLink link = new SubmitLink("link") {
>
> private static final long serialVersionUID = 1L;
>
> @Override
> protected void onComponentTag(ComponentTag tag)
> {
> super.onComponentTag(tag);
> // If we're disabled
> if (!isLinkEnabled())
> {
> disableLink(tag);
> }
> else
> {
> if (tag.getName().equalsIgnoreCase("a"))
> {
> tag.put("href", "#");
> }
> tag.put("onclick",
> getTriggerJavaScript1());
> }
> }
>
> protected String getTriggerJavaScript1()
> {
> if (getForm() != null)
> {
> // find the root form - the one we are
> really going to submit
> Form<?> root = getForm().getRootForm();
> StringBuilder sb = new
> StringBuilder(100);
> // my code
> sb.append("document.getElementById('");
> sb.append(description.getMarkupId());
>
> sb.append("').value=CKEDITOR.instances.");
> sb.append(description.getMarkupId());
> sb.append(".getData();");
> // end of my code
> sb.append("var
> e=document.getElementById('");
> sb.append(root.getHiddenFieldId());
> sb.append("'); e.name=\'");
> sb.append(getInputName());
> sb.append("'; e.value='x';");
> sb.append("var
> f=document.getElementById('");
> sb.append(root.getMarkupId());
> sb.append("');");
>
> if
> (shouldInvokeJavaScriptFormOnsubmit())
> {
> if (getForm() != root)
> {
> sb.append("var
> ff=document.getElementById('");
>
> sb.append(getForm().getMarkupId());
> sb.append("');");
> }
> else
> {
> sb.append("var ff=f;");
> }
> sb.append("if (ff.onsubmit !=
> undefined) { if (ff.onsubmit()==false) return false; }");
> }
>
> sb.append("f.submit();e.value='';e.name='';return false;");
> return sb.toString();
> }
> else
> {
> return null;
> }
> }
> };
> This ugly and moreover if form submiting logic changes my extended link might
> stop to work properly. I propose adding a method decorareTriggerJavaScript
> that allows users to decorate the form submiting script. e.g. in my case
> SubmitLink link = new SubmitLink("link") {
> private static final long serialVersionUID = 1L;
>
> @Override
> protected void decorareTriggerJavaScript(StringBuilder
> sb) {
> StringBuilder sb1 = new StringBuilder(100);
> sb1.append("document.getElementById('");
> sb1.append(description.getMarkupId());
> sb1.append("').value=CKEDITOR.instances.");
> sb1.append(description.getMarkupId());
> sb1.append(".getData();");
> sb.insert(0, sb1.toString());
> }
> };
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