Class Button

Base class for buttons

Use the Button class as base class or create a fully configurable instance directly.

A button is an OpenLayer control with a default layout. You can change some style classes, tooltips etc. with the ButtonOptions

Some buttons extend OpenLayer controls with its features, but most of them are just a shell for further implementations

You can set the icon font of the button with the unicode number or the iconClassName option.

A Button dispatches the CLICK event so that you can listen to it with the on OpenLayer method Example:

const printCtrl = new Print({ preventDefault: true });
printCtrl.on(EventType.CLICK, this.handlePrint);

Alternatively you can override the handleEvent method

Remark

As a button is also a CompositeControl it can have child controls. E.g. it's used with the ToggleButton