@geogirafe/lib-geoportal/tools/layers/simplemaskmanager.js

GeoGirafe is a flexible application to build online geoportals.

import { getOlayerByName } from '../utils/olutils';
import SimpleMaskLayer from './simplemasklayer';
const MASK_LAYER_NAME = 'SimpleMask';
/**
 * Manager to display a simple mask layer with a cut-out box in the middle.
 */
class SimpleMaskManager {
    constructor(map) {
        Object.defineProperty(this, "maskLayer", {
            enumerable: true,
            configurable: true,
            writable: true,
            value: new SimpleMaskLayer({ name: MASK_LAYER_NAME })
        });
        Object.defineProperty(this, "map", {
            enumerable: true,
            configurable: true,
            writable: true,
            value: void 0
        });
        Object.defineProperty(this, "visible", {
            enumerable: true,
            configurable: true,
            writable: true,
            value: false
        });
        this.map = map;
    }
    /**
     * Display the mask or hide it.
     */
    setMaskVisibility(visible) {
        const isLayerInMap = getOlayerByName(this.map, MASK_LAYER_NAME);
        this.visible = visible;
        if (this.visible && !isLayerInMap) {
            this.map.addLayer(this.maskLayer);
            return;
        }
        if (!this.visible && isLayerInMap) {
            this.map.removeLayer(this.maskLayer);
        }
    }
    /**
     * Update the size (width, height), in pixels of the mask.
     */
    setMaskSize(size) {
        this.maskLayer.updateSize(size);
        this.renderMask();
    }
    renderMask() {
        if (this.visible) {
            this.maskLayer.changed();
        }
    }
}
export default SimpleMaskManager;