Instantiates a new handler.
The DOM element to contain the handler
The step to handle
The deferred Promise that resolves the step when it's ready to submit.
Performs handler-specific retry actions.
The step to handle
The DOM element to contain the handler
Perform any handler-specific event binding required.
Initializes the handler and returns a Promise that will resolve with the complete step when it's ready to submit.
Helper for locating a DOM element within the target.
Capture references to handler-specific DOM elements.
Return the handler-specific HTML template.
Perform any required action after the handler's template has been rendered.
Render the handler's template to the target.
Base handler implementation that orchestrates rendering, binding, readiness, etc. Subclasses can override only the methods that require customization.