lfgvisualts2

/*
 *  Power BI Visual CLI
 *
 *  Copyright (c) Microsoft Corporation
 *  All rights reserved.
 *  MIT License
 *
 *  Permission is hereby granted, free of charge, to any person obtaining a copy
 *  of this software and associated documentation files (the ""Software""), to deal
 *  in the Software without restriction, including without limitation the rights
 *  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 *  copies of the Software, and to permit persons to whom the Software is
 *  furnished to do so, subject to the following conditions:
 *
 *  The above copyright notice and this permission notice shall be included in
 *  all copies or substantial portions of the Software.
 *
 *  THE SOFTWARE IS PROVIDED *AS IS*, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 *  THE SOFTWARE.
 */

module powerbi.extensibility.visual {
    "use strict";
    export class Visual implements IVisual {
        private gauge: any;
        private target: HTMLElement;
        private settings: VisualSettings;

        private svg: d3.Selection<SVGElement>;

        constructor(options: VisualConstructorOptions) {
            this.target = options.element;

            if (typeof document !== "undefined") {
                let svg = this.svg = d3.select(options.element).append('svg').classed('liquidFillGauge', true);
            }
        }

        public update(options: VisualUpdateOptions) {
            this.settings = Visual.parseSettings(options && options.dataViews && options.dataViews[0]);
            var dataView = options.dataViews[0];
             if (dataView) {
                 var value = dataView.single.value;
                 if (value >= 0) {
                     if (!this.gauge) {
                         this.gauge = lfg.loadLiquidFillGauge(this.svg, value, lfg.liquidFillGaugeDefaultSettings());
                     } else {
                         this.gauge.update(value)
                     }
                 }
             }
        }

        private static parseSettings(dataView: DataView): VisualSettings {
            return VisualSettings.parse(dataView) as VisualSettings;
        }

        /** 
         * This function gets called for each of the objects defined in the capabilities files and allows you to select which of the 
         * objects and properties you want to expose to the users in the property pane.
         * 
         */
        public enumerateObjectInstances(options: EnumerateVisualObjectInstancesOptions): VisualObjectInstance[] | VisualObjectInstanceEnumerationObject {
            return VisualSettings.enumerateObjectInstances(this.settings || VisualSettings.getDefault(), options);
        }
    }
}