/**
* Trigger a keydown/keyup pair. The keyup is triggered with a timeout
* @param {HTMLElement} element
* @param {number} keyCode
*/
triggerKeyDownUpEvents( element, keyCode ) {
if ( !Display.keyStateTracker.isKeyDown( keyCode ) ) {
sceneryLog && sceneryLog.KeyboardFuzzer && sceneryLog.KeyboardFuzzer( 'trigger keydown/up: ' + keyCode );
sceneryLog && sceneryLog.KeyboardFuzzer && sceneryLog.push();
// TODO: screen readers normally take our keydown events, but may not here, is the descrpency ok?
this.triggerDOMEvent( KEY_DOWN, element, keyCode );
this.keyupListeners.push( timer.setTimeout( () => {
this.triggerDOMEvent( KEY_UP, element, keyCode );
}, this.random.nextInt( MAX_MS_KEY_HOLD_DOWN ) ) );
sceneryLog && sceneryLog.KeyboardFuzzer && sceneryLog.pop();
}
}
QUnit.test( 'Global KeyStateTracker tests', assert => {
const rootNode = new Node( { tagName: 'div' } );
const display = new Display( rootNode ); // eslint-disable-line
beforeTest( display );
const a = new Node( { tagName:'button' } );
const b = new Node( { tagName:'button' } );
const c = new Node( { tagName:'button' } );
const d = new Node( { tagName:'button' } );
a.addChild( b );
b.addChild( c );
c.addChild( d );
rootNode.addChild( a );
const dPrimarySibling = d.accessibleInstances[ 0 ].peer.primarySibling;
triggerDOMEvent( 'keydown', dPrimarySibling, KeyboardUtil.KEY_RIGHT_ARROW );
assert.ok( Display.keyStateTracker.isKeyDown( KeyboardUtil.KEY_RIGHT_ARROW ), 'global keyStateTracker should be updated with right arrow key down' );
afterTest( display );
} );