office-ui-fabric-react/lib-amd/components/DocumentCard/DocumentCardPreview.js

Reusable React components for building experiences for Office 365.

var __extends = (this && this.__extends) || function (d, b) {
    for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
    function __() { this.constructor = d; }
    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
define(["require", "exports", 'react', '../../Image', '../../utilities/Async/Async', './DocumentCardPreview.scss'], function (require, exports, React, Image_1, Async_1) {
    "use strict";
    var INTERVAL_DELAY = 3000;
    var DocumentCardPreview = (function (_super) {
        __extends(DocumentCardPreview, _super);
        function DocumentCardPreview(props) {
            var _this = this;
            _super.call(this, props);
            this._showNextPreview = this._showNextPreview.bind(this);
            this._async = new Async_1.Async(this);
            // Show the first preview by default
            this.state = {
                visiblePreviewIndex: 0
            };
            // If more than one preview has been provided, set an interval to start flipping through them
            if (this.props.previewImages.length > 1) {
                this._interval = this._async.setInterval(function () { _this._showNextPreview(); }, INTERVAL_DELAY);
            }
        }
        DocumentCardPreview.prototype.componentWillUnmount = function () {
            this._async.dispose();
        };
        DocumentCardPreview.prototype.render = function () {
            var previewImages = this.props.previewImages;
            var visiblePreviewIndex = this.state.visiblePreviewIndex;
            var previewImage = previewImages[visiblePreviewIndex];
            var accentColor = previewImage.accentColor, width = previewImage.width, height = previewImage.height, imageFit = previewImage.imageFit;
            var style;
            if (accentColor) {
                style = {
                    borderBottomColor: accentColor
                };
            }
            var icon;
            if (previewImage.iconSrc) {
                icon = React.createElement(Image_1.Image, {className: 'ms-DocumentCardPreview-icon', src: previewImage.iconSrc, role: 'presentation', alt: ''});
            }
            return (React.createElement("div", {className: 'ms-DocumentCardPreview', style: style}, React.createElement(Image_1.Image, {width: width, height: height, imageFit: imageFit, src: previewImage.previewImageSrc, errorSrc: previewImage.errorImageSrc, role: 'presentation', alt: ''}), icon));
        };
        DocumentCardPreview.prototype._showNextPreview = function () {
            var maximumIndex = this.props.previewImages.length - 1;
            var currentIndex = this.state.visiblePreviewIndex;
            var newIndex;
            if (currentIndex < maximumIndex) {
                newIndex = currentIndex + 1;
            }
            else {
                newIndex = 0;
            }
            this.setState({
                visiblePreviewIndex: newIndex
            });
        };
        return DocumentCardPreview;
    }(React.Component));
    exports.DocumentCardPreview = DocumentCardPreview;
});