CKEditor widget receives data after it has been rendered - ckeditor

Question

Looking at the docs you can pass startup data to a widget:
editor.execCommand( 'simplebox', {
startupData: {
align: 'left'
}
} );
However this data is pointless as there seems to be no way to affect the template output - it has already been generated before the widget's init, and also the data isn't even available at that point:
editor.widgets.add('uselesswidget', {
init: function() {
// `this.data` is empty..
// `this.dataReady` is false..
// Modifying `this.template` here does nothing..
// this.template = new CKEDITOR.template('<div>new content</div>');
// Just after init setData is called..
this.on('data', function(e) {
// `e.data` has the data but it's too late to affect the tpl..
});
},
template: '<div>there seems to be no good way of creating the widget based on the data..</div>'
});
Also adding a CKEditor tag throws a "Uncaught TypeError: Cannot read property 'align' of undefined" exception so it seems the data is also not passed to the original template:
template: '<div>Align: {align}</div>'
What is the point of having a CKEDITOR.template.output function which can accept a context, if there's no way of dynamically passing data?
The only horribly hacky solution I've found so far is to intercept the command in a beforeCommandExec and block it, then modify the template and manually execute the command again..
Any ideas to generate dynamic templates based on passed data? Thanks.

Answer 1

Here's how I did it.
Widget definition:
template:
'<div class="myEditable"></div>',
init: function () {
// Wait until widget fires data event
this.on('data', function(e) {
if (this.data.content) {
// Clear previous values and set initial content
this.element.setHtml('')
var newElement = CKEDITOR.dom.element.createFromHtml( this.data.content );
this.element.append(newElement,true);
this.element.setAttribute('id', this.data.id);
}
// Create nestedEditable
this.initEditable('myEditable', {
selector: '.myEditable',
allowedContent: this.data.allowedContent
})
});
}
Dynamic widget creation:
editor.execCommand('myEditable', {startupData: {
id: "1",
content: "some <em>text</em>",
allowedContent: {
'em ul li': true,
}
}});