• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• 27
• 28
• 29
• 30
• 31
• 32
• 33
• 34
• 35
• 36
• 37
• 38
• 39
• 40
• 41
• 42
• 43
• 44
• 45
• 46
• 47
• 48
• 49
• 50
• 51
• 52
• 53
• 54
• 55
• 56
• 57
• 58
• 59
• 60
• 61
• 62
• 63
• 64
• 65
• 66
• 67
• 68
• 69
• 70
• 71
• 72
• 73
• 74
• 75
• 76
• 77
• 78
• 79
• 80
• 81
• 82
• 83
• 84
• 85
• 86
• 87
• 88
• 89
• 90
• 91
• 92
• 93
• 94
• 95
• 96
• 97
• 98
• 99
• 100
• 101
• 102
• 103
• 104
• 105
• 106
• 107
• 108
• 109
• 110
• 111
• 112
• 113
• 114
• 115
• 116
• 117
• 118
• 119
• 120
• 121
• 122
• 123
• 124
• 125
• 126
• 127
• 128
• 129
• 130
• 131
• 132
• 133
• 134
• 135
• 136
• 137
• 138
• 139
• 140
• 141
• 142
• 143
• 144
• 145
• 146
• 147
• 148
• 149
• 150
• 151
• 152

import type { ExtensionMetadata, Renderer } from '@pixi/core';
import { ExtensionType } from '@pixi/core';
import type { IApplicationOptions } from './Application';

type ResizeableRenderer = Pick<Renderer, 'resize'>;

/**
 * Middleware for for Application's resize functionality
 * @private
 * @class
 */
export class ResizePlugin
{
    /** @ignore */
    static extension: ExtensionMetadata = ExtensionType.Application;

    public static resizeTo: Window | HTMLElement;
    public static resize: () => void;
    public static renderer: ResizeableRenderer;
    public static queueResize: () => void;
    private static _resizeId: number;
    private static _resizeTo: Window | HTMLElement;
    private static cancelResize: () => void;

    /**
     * Initialize the plugin with scope of application instance
     * @static
     * @private
     * @param {object} [options] - See application options
     */
    static init(options?: IApplicationOptions): void
    {
        Object.defineProperty(this, 'resizeTo',
            /**
             * The HTML element or window to automatically resize the
             * renderer's view element to match width and height.
             * @member {Window|HTMLElement}
             * @name resizeTo
             * @memberof PIXI.Application#
             */
            {
                set(dom: Window | HTMLElement)
                {
                    globalThis.removeEventListener('resize', this.queueResize);
                    this._resizeTo = dom;
                    if (dom)
                    {
                        globalThis.addEventListener('resize', this.queueResize);
                        this.resize();
                    }
                },
                get()
                {
                    return this._resizeTo;
                },
            });

        /**
         * Resize is throttled, so it's safe to call this multiple times per frame and it'll
         * only be called once.
         * @memberof PIXI.Application#
         * @method queueResize
         * @private
         */
        this.queueResize = (): void =>
        {
            if (!this._resizeTo)
            {
                return;
            }

            this.cancelResize();

            // // Throttle resize events per raf
            this._resizeId = requestAnimationFrame(() => this.resize());
        };

        /**
         * Cancel the resize queue.
         * @memberof PIXI.Application#
         * @method cancelResize
         * @private
         */
        this.cancelResize = (): void =>
        {
            if (this._resizeId)
            {
                cancelAnimationFrame(this._resizeId);
                this._resizeId = null;
            }
        };

        /**
         * Execute an immediate resize on the renderer, this is not
         * throttled and can be expensive to call many times in a row.
         * Will resize only if `resizeTo` property is set.
         * @memberof PIXI.Application#
         * @method resize
         */
        this.resize = (): void =>
        {
            if (!this._resizeTo)
            {
                return;
            }

            // clear queue resize
            this.cancelResize();

            let width: number;
            let height: number;

            // Resize to the window
            if (this._resizeTo === globalThis.window)
            {
                width = globalThis.innerWidth;
                height = globalThis.innerHeight;
            }
            // Resize to other HTML entities
            else
            {
                const { clientWidth, clientHeight } = this._resizeTo as HTMLElement;

                width = clientWidth;
                height = clientHeight;
            }

            this.renderer.resize(width, height);
        };

        // On resize
        this._resizeId = null;
        this._resizeTo = null;
        this.resizeTo = options.resizeTo || null;
    }

    /**
     * Clean up the ticker, scoped to application
     * @static
     * @private
     */
    static destroy(): void
    {
        globalThis.removeEventListener('resize', this.queueResize);
        this.cancelResize();
        this.cancelResize = null;
        this.queueResize = null;
        this.resizeTo = null;
        this.resize = null;
    }
}