README.md

observed-state

A demo that shows how state management can implemented using uce-template.

Description

Use observedReactive in your setup instead of reactive if you want your uce-template custom elements to synchronize their states.

This function implements an observer pattern that synchronizes the state of your custom-elements that use the same model. The model is just a string label that is passed in the custom elements as prop.

observedReactive

It takes 3 arguments: element, initialValue and options

• element: the element handle as passed in the setup. The element must have a model prop containing a non empty string.
• initialValue: an initial value for youe state (it can be anything). If another element uses the source option (see below), this is ignored.
• options: {observe: bool, source: bool}. Default values are both false. Use source: true in the element the state of which should be used as the initial value for other elements (observers). You should have only one such element per model. Use observe: true if you want your element to synchronize its state when other elements change their state using the same model.

Return value: the same as the return value of reactive. For example, the equivelant of reactive({count: 0}) is sharedReactive(el, 0, {observe: true}) if el.model === 'count'.

The implementation of observedReactive is very simple and you can check it out in the uce-template-observed-state.js file if you have further questions.

Example

Check out the index.html file.

Next steps

Add a persist option so that the state can be shared between different html files (pages) using local storage.