defaultValue in Touch UI dialogs - AEM/CQ

问题

For classic UI there is a option to set defaultValue for fields, this is shown to user when user first time opens the dialog after dragging the component. If user clears the value in dialog and saves, on editing the dialog, value of field is not shown again.

For touch UI dialog, couldn't find the equivalent of defaultValue. There are following options

emptyText - But this is kind of placeholder text. If user wants to save form without entering value, this is not useful.
value - This shows the value when first time component is opened for authoring. But if user clears the value and saves. From the JCR structure the value is removed. But if user opens the dialog for editing, the value is again shown in the field, while this should be empty.

If there a equivalent of defaultValue in touch UI dialog or any other way of handling this (may be listeners or something else)

回答1:

Instead of using defaultValue or value, I feel like you should be using cq:template node. You can achieve this by adding nt:unstructured type of node with cq:template name under the component. Like this:

_cq_template/.content.xml

<?xml version="1.0" encoding="UTF-8"?>
<jcr:root xmlns:cq="http://www.day.com/jcr/cq/1.0"
    xmlns:jcr="http://www.jcp.org/jcr/1.0"
    xmlns:nt="http://www.jcp.org/jcr/nt/1.0"
    jcr:primaryType="nt:unstructured"
    sampleProperty="Default value of sampe property">

回答2:

I'm planning to set a select field in the design dialog with dropdown for default values and then work with it in the cq-dialog with value="${cqDesign.type}"

来源：https://stackoverflow.com/questions/38640339/defaultvalue-in-touch-ui-dialogs-aem-cq

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