121 lines
		
	
	
		
			3.6 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			121 lines
		
	
	
		
			3.6 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
import Theme from './theme.js'
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import Popup from './popup.js'
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/**
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 * Class that represents a PixiJS PopupMenu.
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 *
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 * @example
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 * // Create the button and the modal when clicked
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 * const button = new Button({
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 *     label: 'Show PopupMenu',
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 *     action: e => {
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 *         const popupmenu = new PopupMenu({
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 *             items: [
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 *                 {label: 'Save', action: () => alert('Saved')},
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 *                 {label: 'Edit', action: () => alert('Edited')},
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 *                 {label: 'Delete', action: () => alert('Deleted')}
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 *             ]
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 *         })
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 *         app.scene.addChild(popupmenu)
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 *     }
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 * })
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 *
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 * // Add the button to a DisplayObject
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 * app.scene.addChild(button)
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 *
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 * @class
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 * @extends Popup
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 * @see {@link https://www.iwm-tuebingen.de/iwmbrowser/lib/pixi/popupmenu.html|DocTest}
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 */
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export default class PopupMenu extends Popup {
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    /**
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     * Creates an instance of a PopupMenu.
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     *
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     * @constructor
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     * @param {object} [opts] - An options object to specify to style and behaviour of the modal.
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     * @param {object[]} [opts.items=[]] - A list of the menu items. Each item must be of type object.
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     *     If an object has a label property, a PIXI.Text object is created (using the textStyle property).
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     *     If an object hasn't a label property, it must contain a content property which has to be a
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     *     PIXI.DisplayObject.
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     * @param {number} [opts.margin=Theme.margin / 2] - The app where the modal belongs to.
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     * @param {object} [opts.textStyle=Theme.textStyle] - The color of the background.
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     * @param {boolean} [opts.closeOnPopup=true] - The opacity of the background.
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     */
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    constructor(opts = {}) {
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        const theme = Theme.fromString(opts.theme)
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        opts = Object.assign(
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            {},
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            {
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                items: [],
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                margin: theme.margin / 2,
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                textStyle: theme.textStyle,
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                closeOnPopup: true,
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            },
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            opts
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        )
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        super(opts)
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    }
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    /**
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     * Creates children and instantiates everything.
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     *
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     * @private
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     * @return {PopupMenu} A reference to the popupmenu for chaining.
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     */
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    setup() {
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        // content
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        //-----------------
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        const content = new PIXI.Container()
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        let y = 0
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        for (let item of this.opts.items) {
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            let object = null
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            if (item.label) {
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                object = new PIXI.Text(item.label, item.textStyle || this.opts.textStyle)
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            } else {
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                object = item.content
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            }
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            object.y = y
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            if (item.action) {
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                if (item.disabled) {
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                    object.alpha = 0.5
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                } else {
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                    object.interactive = true
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                    object.buttonMode = true
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                }
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                object.on('pointerover', (e) => {
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                    TweenLite.to(object, this.theme.fast, {
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                        alpha: 0.83,
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                        overwrite: 'none',
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                    })
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                })
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                object.on('pointerout', (e) => {
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                    TweenLite.to(object, this.theme.fast, {
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                        alpha: 1,
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                        overwrite: 'none',
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                    })
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                })
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                object.on('pointerup', (e) => {
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                    item.action.call(object, e, object)
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                    if (this.opts.closeOnAction) {
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                        this.hide()
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                    }
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                })
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            }
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            content.addChild(object)
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            y += object.height + this.opts.margin
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        }
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        this.opts.content = content
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        super.setup()
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    }
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}
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