Shared Variables

Name: Media La Vista FZCO
Address: Dubai Silicon Oasis, Dubai, AE
Telephone: +971 55 581 01 49

Enable real-time data sharing between SVG documents on the same player, across players, and with external systems.

JavaScript API

var sv = createSharedVariable('myVariable');

Property/Method	Description
`sv.value`	Current value (read-only)
`sv.set(value)`	Set the variable value
`sv.addUpdateListener(fn)`	Register update handler
`sv.removeUpdateListener(fn)`	Unregister handler
`sv.testAndSet(expected, new)`	Atomic compare-and-swap

Listen & Display

$(function() {
  var display = $.headlineTextArea({}).addTo('svg');
  var sv = createSharedVariable('message');
  sv.addUpdateListener(function() {
    display.text(sv.value);
  });
  display.text(sv.value || "Waiting...");
});

Persist to localStorage

$(function() {
  var sv = createSharedVariable('persistentVar');
  var stored = localStorage.getItem('persistentVar');
  if (stored) sv.set(stored);
  sv.addUpdateListener(function() {
    localStorage.setItem('persistentVar', sv.value);
  });
});

Network API

External clients can access the SV server via network. Disabled by default — enable in Control Center → Network → Services.

Remote Update via RPC (AJAX)

$.ajax({
  type: "POST", url: "http://HMP_ADDRESS/rpc",
  contentType: 'application/json',
  data: JSON.stringify({
    method: "webstorage_set",
    params: [[ { name: "myVar", value: "NewValue" } ]], id: 1
  })
});

Interactive Content — cross-document control
Web Storage — localStorage persistence
Data Feeds & AJAX — RPC calls
Player APIs — network API overview