Block Button

Below is the basic JS for creating a custom button for the block toolbar.

// Define block custom button.
FroalaPages.Button.Register('myButton', {
title: 'My Button',
icon: {
type: 'svg',
template: '<svg viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M6 19c0 1.1.9 2 2 2h8c1.1 0 2-.9 2-2V7H6v12zM19 4h-3.5l-1-1h-5l-1 1H5v2h14V4z"/><path d="M0 0h24v24H0z" fill="none"/></svg>'
},
callback() {
// Wave the world.
alert('Hello World!');

// Show current active block.
console.log(this.page.activeBlock);
}
})

Note: Once a command is defined it can be included in the blockButtons option.