new AccessibilityComponent()
The AccessibilityComponent base class, representing a part of the chart that has accessibility logic connected to it. This class can be inherited from to create a custom accessibility component for a chart.
Components should take care to destroy added elements and unregister event
handlers on destroy. This is handled automatically if using this.addEvent
and this.createElement.
Requires:
- module:modules/accessibility
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Requires
- module:modules/accessibility
Methods
-
destroy()
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Called when accessibility is disabled or chart is destroyed.
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getKeyboardNavigation()
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Get keyboard navigation handler for this component.
Returns:
Highcharts.KeyboardNavigationHandler | Array.<Highcharts.KeyboardNavigationHandler> .The keyboard navigation handler(s) for this component.
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init()
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Called on component initialization.
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onChartRender()
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Called on every chart render.
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onChartUpdate()
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Called on updates to the chart, including options changes. Note that this is also called on first render of chart.