onShapeEvents([callback], [remove])

Class: Panel.

Description:

Registers, unregisters and gets a list of handler functions for Shape events (such as when mouse enters, leaves, mouse button clicks, etc.).

Parameters:

Name	Type	Description
`[callback]`	function	Event handler function that receives event Object as an argument. Check example below for event Object format.
`[remove]`	boolean	Set to `true` to unregister the handler function.

Returns:

Returns an array of registered handler functions if arguments are omitted, otherwise returns this component instance.

Type: Array.<function()> | ComboBox

Examples:

let handler = function(e){console.log(e);}
mainForm.panel_1 = new Panel().addTo(mainForm).onPopupEvents(handler);

// event Object format:
const e = {
  target: object,        // The Panel component that triggered the event.
  type: string,          // Possible values: `click`, `mousedown`, `mouseup`, `mouseenter`, `mouseleave`.
  x: number,             // X position relative to target.
  y: number,             // Y position relative to target.
  shapeIndex: number,    // Index of the shape that triggered the event.
  dragging: boolean,     // `true` if mouse is down while moving, otherwise false.
  alt: boolean,          // `true` if Alt key was pressed on keyboard when event was emitted.
  shift: boolean,        // `true` if Shift key was pressed on keyboard when event was emitted.
  ctrl: boolean,         // `true` if Control key was pressed on keyboard when event was emitted.
  modifiers: string,     // Modifiers used when the event was emitted
  modifiersText: string  // Description of used modifiers
};