352 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			352 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
import Theme from './theme.js'
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/**
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 * Class that represents a PixiJS AbstractPopup.
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 * The class is used for various other Popup-like classes
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 * like Popup, Message, Tooltip...
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 *
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 * @class
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 * @abstract
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 * @extends PIXI.Graphics
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 * @see {@link http://pixijs.download/dev/docs/PIXI.Graphics.html|PIXI.Graphics}
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 */
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export default class AbstractPopup extends PIXI.Graphics {
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    /**
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     * Creates an instance of an AbstractPopup (only for internal use).
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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 popup.
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     * @param {number} [opts.id=auto generated] - The id of the popup.
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     * @param {number} [opts.x=0] - The x position of the popup. Can be also set after creation with popup.x = 0.
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     * @param {number} [opts.y=0] - The y position of the popup. Can be also set after creation with popup.y = 0.
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     * @param {string|Theme} [opts.theme=dark] - The theme to use for this popup. Possible values are dark, light, red
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     *     or a Theme object.
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     * @param {string|number|PIXI.Text} [opts.header] - The heading inside the popup as a string, a number (will be
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     *     converted to a text) or as a PIXI.Text object.
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     * @param {string|number|PIXI.DisplayObject} [opts.content] - A text, a number (will be converted to a text) or
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     *     an PIXI.DisplayObject as the content of the popup.
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     * @param {number} [opts.minWidth=320] - The minimum width of the popup.
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     * @param {number} [opts.minHeight=130] - The minimum height of the popup.
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     * @param {number} [opts.padding=Theme.padding] - The inner spacing (distance from header and content) the the border.
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     * @param {number} [opts.fill=Theme.fill] - The color of the button background as a hex value.
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     * @param {number} [opts.fillAlpha=Theme.fillAlpha] - The alpha value of the background.
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     * @param {number} [opts.stroke=Theme.stroke] - The color of the border as a hex value.
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     * @param {number} [opts.strokeWidth=Theme.strokeWidth] - The width of the border in pixel.
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     * @param {number} [opts.strokeAlpha=Theme.strokeAlpha] - The alpha value of the border.
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     * @param {object} [opts.headerStyle=Theme.textStyleLarge] - A textstyle object for the styling of the header. See PIXI.TextStyle
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     *     for possible options.
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     * @param {object} [opts.textStyle=Theme.textStyleSmall] - A textstyle object for the styling of the text. See PIXI.TextStyle
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     *     for possible options.
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     * @param {number} [opts.radius=Theme.radius] - The radius of the four corners of the popup (which is a rounded rectangle).
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     * @param {hiddenCallback} [opts.onHidden] - Executed when the popup gets hidden.
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     * @param {boolean} [opts.visible=true] - Is the popup initially visible (property visible)?
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     * @param {string} [opts.orientation] - When set to portrait, the popup cannot be displayed in landscape mode. When set
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     *     to landscape, the popup cannot be displayed in portrait mode.
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     */
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    constructor(opts = {}) {
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        super()
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        const theme = Theme.fromString(opts.theme)
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        this.theme = theme
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        this.opts = Object.assign(
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            {},
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            {
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                id: PIXI.utils.uid(),
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                x: 0,
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                y: 0,
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                header: null, // null or null
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                content: null, // null or String or PIXI.DisplayObject
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                minWidth: 320,
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                minHeight: 130,
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                maxWidth: null,
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                padding: theme.padding,
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                fill: theme.fill,
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                fillAlpha: theme.fillAlpha,
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                stroke: theme.stroke,
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                strokeWidth: theme.strokeWidth,
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                strokeAlpha: theme.strokeAlpha,
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                headerStyle: theme.textStyleLarge,
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                textStyle: theme.textStyleSmall,
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                radius: theme.radius,
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                onHidden: null,
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                visible: true,
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                orientation: null,
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            },
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            opts
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        )
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        this.id = this.opts.id
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        this.headerStyle = new PIXI.TextStyle(this.opts.headerStyle)
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        this.textStyle = new PIXI.TextStyle(this.opts.textStyle)
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        if (this.opts.maxWidth) {
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            this.headerStyle.wordWrap = true
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            this.headerStyle.wordWrapWidth = this.opts.maxWidth - 2 * this.opts.padding
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            this.textStyle.wordWrap = true
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            this.textStyle.wordWrapWidth = this.opts.maxWidth - 2 * this.opts.padding
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        }
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        this.alpha = 0
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        this.visible = this.opts.visible
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        this._header = null
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        this._content = null
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        // position
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        this.x = this.opts.x
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        this.y = this.opts.y
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        // padding
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        this.innerPadding = this.opts.padding * 1.5
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        // interaction
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        //-----------------
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        this.interactive = true
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        this.on('added', (e) => {
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            this.show()
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        })
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    }
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    /**
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     * Creates the framework and instantiates everything.
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     *
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     * @private
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     * @return {AbstractPopup} A reference to the popup for chaining.
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     */
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    setup() {
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        // position
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        //-----------------
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        this.sy = this.opts.padding
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        // header
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        //-----------------
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        if (this.opts.header != null) {
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            let header = null
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            if (this.opts.header instanceof PIXI.Text) {
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                header = this.opts.header
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            } else if (typeof this.opts.header === 'number') {
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                header = new PIXI.Text(this.opts.header.toString(), this.headerStyle)
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            } else {
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                header = new PIXI.Text(this.opts.header, this.headerStyle)
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            }
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            header.x = this.opts.padding
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            header.y = this.sy
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            this.addChild(header)
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            this.sy += header.height
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            this._header = header
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        }
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        if (this.opts.header && this.opts.content) {
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            this.sy += this.innerPadding
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        }
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        // content
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        //-----------------
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        if (this.opts.content != null) {
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            let content = null
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            if (typeof this.opts.content === 'string') {
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                content = new PIXI.Text(this.opts.content, this.textStyle)
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            } else if (typeof this.opts.content === 'number') {
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                content = new PIXI.Text(this.opts.content.toString(), this.textStyle)
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            } else {
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                content = this.opts.content
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            }
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            content.x = this.opts.padding
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            content.y = this.sy
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            this.sy += content.height
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            this.addChild(content)
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            this._content = content
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        }
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        return this
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    }
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    /**
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     * Should be called to refresh the layout of the popup. Can be used after resizing.
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     *
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     * @return {AbstractPopup} A reference to the popup for chaining.
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     */
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    layout() {
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        // wanted width & wanted height
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        //-----------------
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        const padding = this.opts.padding
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        const size = this.getInnerSize()
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        const width = size.width + 2 * padding
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        const height = size.height + 2 * padding
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        this.wantedWidth = Math.max(width, this.opts.minWidth)
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        this.wantedHeight = Math.max(height, this.opts.minHeight)
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        if (this.opts.maxWidth) {
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            this.wantedWidth = Math.min(this.wantedWidth, this.opts.maxWidth)
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        }
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        if (this.opts.radius * 2 > this.wantedWidth) {
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            this.wantedWidth = this.opts.radius * 2
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        }
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        if (this.opts.radius * 2 > this.wantedHeight) {
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            this.wantedHeight = this.opts.radius * 2
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        }
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        switch (this.opts.orientation) {
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            case 'portrait':
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                if (this.wantedWidth > this.wantedHeight) {
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                    this.wantedHeight = this.wantedWidth
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                }
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                break
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            case 'landscape':
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                if (this.wantedHeight > this.wantedWidth) {
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                    this.wantedWidth = this.wantedHeight
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                }
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                break
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        }
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        this.draw()
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        return this
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    }
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    /**
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     * Draws the canvas.
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     *
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     * @private
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     * @return {AbstractPopup} A reference to the popup for chaining.
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     */
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    draw() {
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        const square = Math.round(this.wantedWidth) === Math.round(this.wantedHeight)
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        const diameter = Math.round(this.opts.radius * 2)
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        this.clear()
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        this.lineStyle(this.opts.strokeWidth, this.opts.stroke, this.opts.strokeAlpha)
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        this.beginFill(this.opts.fill, this.opts.fillAlpha)
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        if (square && diameter === this.wantedWidth) {
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            this.drawCircle(this.wantedWidth / 2, this.wantedHeight / 2, this.opts.radius)
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        } else {
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            this.drawRoundedRect(0, 0, this.wantedWidth, this.wantedHeight, this.opts.radius)
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        }
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        this.endFill()
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        return this
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    }
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    /**
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     * Calculates the size of the children of the AbstractPopup.
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     * Cannot use getBounds() because it is not updated when children
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     * are removed.
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     *
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     * @private
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     * @returns {object} An JavaScript object width the keys width and height.
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     */
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    getInnerSize() {
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        let width = 0
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        let height = 0
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        if (this._header) {
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            width = this._header.width
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            height = this._header.height
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        }
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        if (this._header && this._content) {
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            height += this.innerPadding
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        }
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        if (this._content) {
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            width = Math.max(width, this._content.width)
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            height += this._content.height
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        }
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        return { width, height }
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    }
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    /**
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     * Shows the popup (sets his alpha values to 1).
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     *
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     * @param {callback} [cb] - Executed when show animation was completed.
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     * @return {AbstractPopup} A reference to the popup for chaining.
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     */
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    show(cb) {
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        TweenLite.to(this, this.theme.fast, {
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            alpha: 1,
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            onComplete: () => {
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                if (cb) {
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                    cb.call(this)
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                }
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            },
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        })
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        return this
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    }
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    /**
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     * Hides the popup (sets his alpha values to 0).
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     *
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     * @param {callback} [cb] - Executed when hide animation was completed.
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     * @return {AbstractPopup} A reference to the popup for chaining.
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     */
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    hide(cb) {
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        TweenLite.to(this, this.theme.fast, {
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            alpha: 0,
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            onComplete: () => {
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                this.visible = false
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                if (cb) {
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                    cb.call(this)
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                }
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            },
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        })
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        if (this.opts.onHidden) {
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            this.opts.onHidden.call(this, this)
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        }
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        return this
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    }
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    /**
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     * Sets or gets the header. The getter always returns a PIXI.Text object. The setter can receive
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     * a string, a number or a PIXI.Text object.
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     *
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     * @member {string|number|PIXI.Text}
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     */
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    get header() {
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        return this._header
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    }
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    set header(value) {
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        if (this._header) {
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            this._header.destroy()
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        }
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        this.opts.header = value
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        this.setup().layout()
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    }
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    /**
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     * Sets or gets the content. The getter always returns an PIXI.DisplayObject. The setter can receive
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     * a string, a number or a PIXI.DisplayObject.
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     *
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     * @member {string|number|PIXI.DisplayObject}
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     */
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    get content() {
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        return this._content
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    }
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    set content(value) {
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        if (this._content) {
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            this._content.destroy()
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        }
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        this.opts.content = value
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        this.setup().layout()
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    }
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}
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