electrum-events

Electrum Events

The electrum-events module forwards web component events to the bus.

The EventHandlers class provides implementations for the various event handlers needed by React web components:

• handleFocus
• handleChange
• handleKeyDown, handleKeyUp and handleKeyPress
• handleSelect

Events are of two categories:

• Events which modify a value (change, key up/down, select).
  They are sent with the bus.notify() function.
• Events which trigger an action (focus, button click).
  They are sent with the bus.dispatch() function.

Debug with active logging

Class EventHandlers has a property debug which can be set to log events to the console, which may prove convenient to better understand what happens.

For customized logging, set debug to a function:

const eh = new EventHandlers (obj, bus);
eh.debug = (source, event) => { /* ... */ };

The source argument will be one of focus, change, key-down, key-up, key-press and select, while the event property gives full access to the event being processed.