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opds-web-client

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"use strict"; var __extends = (this && this.__extends) || (function () { var extendStatics = function (d, b) { extendStatics = Object.setPrototypeOf || ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) || function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; }; return extendStatics(d, b); }; return function (d, b) { if (typeof b !== "function" && b !== null) throw new TypeError("Class extends value " + String(b) + " is not a constructor or null"); extendStatics(d, b); function __() { this.constructor = d; } d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __()); }; })(); Object.defineProperty(exports, "__esModule", { value: true }); var React = require("react"); var throttle_debounce_1 = require("throttle-debounce"); var Book_1 = require("./Book"); var CatalogLink_1 = require("./CatalogLink"); var Lanes_1 = require("./Lanes"); var FacetGroup_1 = require("./FacetGroup"); var SkipNavigationLink_1 = require("./SkipNavigationLink"); /** Displays books in an OPDS collection as either lanes, a grid or a list. */ var Collection = /** @class */ (function (_super) { __extends(Collection, _super); function Collection(props) { var _this = _super.call(this, props) || this; _this.fetch = _this.fetch.bind(_this); _this.handleScrollOrResize = (0, throttle_debounce_1.debounce)(50, _this.handleScrollOrResize.bind(_this)); _this.getSelectedView = _this.getSelectedView.bind(_this); _this.selectGridView = _this.selectGridView.bind(_this); _this.selectListView = _this.selectListView.bind(_this); return _this; } Collection.prototype.render = function () { var _this = this; var _a; var hasFacets = this.props.collection.facetGroups && this.props.collection.facetGroups.length > 0; var hasViews = this.props.collection.books && this.props.collection.books.length > 0; return (React.createElement("div", { className: "collection" }, hasFacets && (React.createElement("div", { className: "facet-groups", "aria-label": "filters" }, React.createElement(SkipNavigationLink_1.default, { target: "#collection-main", label: "filters" }), (_a = this.props.collection.facetGroups) === null || _a === void 0 ? void 0 : _a.map(function (facetGroup) { return (React.createElement(FacetGroup_1.default, { key: facetGroup.label, facetGroup: facetGroup })); }))), React.createElement("div", { className: "collection-container" }, hasViews && (React.createElement("div", { className: "view-toggle" }, React.createElement("button", { title: "Select grid view", disabled: this.getSelectedView() === Collection.GRID_VIEW, onClick: this.selectGridView }, React.createElement("i", { className: "fa fa-th-large" })), React.createElement("button", { title: "Select list view", disabled: this.getSelectedView() === Collection.LIST_VIEW, onClick: this.selectListView }, React.createElement("i", { className: "fa fa-th-list" })))), React.createElement("div", { id: "collection-main", className: "collection-main", ref: "collection-main", "aria-label": "books in " + this.props.collection.title }, this.props.collection.lanes && this.props.collection.lanes.length > 0 ? (React.createElement(Lanes_1.Lanes, { url: this.props.collection.url, lanes: this.props.collection.lanes, updateBook: this.props.updateBook, isSignedIn: this.props.isSignedIn, epubReaderUrlTemplate: this.props.epubReaderUrlTemplate })) : null, this.props.collection.books && (React.createElement("ul", { "aria-label": "books", className: "subtle-list books " + this.getSelectedView() }, this.props.collection.books.map(function (book, index) { return (React.createElement("li", { key: index }, React.createElement(Book_1.default, { book: book, collectionUrl: _this.props.collection.url, updateBook: _this.props.updateBook, isSignedIn: _this.props.isSignedIn, epubReaderUrlTemplate: _this.props.epubReaderUrlTemplate }))); }))), this.props.collection.navigationLinks && (React.createElement("nav", { role: "navigation", "aria-label": "navigation links" }, React.createElement("ul", { className: "navigation-links subtle-list" }, this.props.collection.navigationLinks.map(function (link, index) { return (React.createElement("li", { key: index }, React.createElement(CatalogLink_1.default, { collectionUrl: link.url }, link.text))); })))), this.isEmpty() && (React.createElement("div", { className: "empty-collection-message" }, "No books found.")), this.canFetch() && (React.createElement("button", { className: "next-page-link visually-hidden", onClick: this.fetch }, "Load more books")), this.props.isFetchingPage && (React.createElement("div", { className: "loading-next-page" }, React.createElement("h3", null, "Loading more books..."))))))); }; Collection.prototype.getSelectedView = function () { return ((this.props.preferences && this.props.preferences[Collection.VIEW_KEY]) || Collection.GRID_VIEW); }; Collection.prototype.selectGridView = function () { if (this.props.setPreference) { this.props.setPreference(Collection.VIEW_KEY, Collection.GRID_VIEW); } }; Collection.prototype.selectListView = function () { if (this.props.setPreference) { this.props.setPreference(Collection.VIEW_KEY, Collection.LIST_VIEW); } }; Collection.prototype.componentWillReceiveProps = function (nextProps) { if (this.props.isFetchingCollection && !nextProps.isFetchingCollection && !nextProps.error) { this.refs["collection-main"].scrollTop = 0; } // the component might be loading a new collection that doesn't fill the page this.handleScrollOrResize(); }; Collection.prototype.componentDidMount = function () { var body = this.refs["collection-main"]; body.addEventListener("scroll", this.handleScrollOrResize); window.addEventListener("resize", this.handleScrollOrResize); // the first page might not fill the screen on initial load, so run handler once this.handleScrollOrResize(); }; Collection.prototype.componentWillUnmount = function () { var body = this.refs["collection-main"]; body.removeEventListener("scroll", this.handleScrollOrResize); window.removeEventListener("resize", this.handleScrollOrResize); }; Collection.prototype.canFetch = function () { return (!this.props.hidden && !this.props.isFetchingPage && !!this.props.collection.nextPageUrl); }; Collection.prototype.fetch = function () { var _a, _b; // had to move this typeguard into here for typescript to // believe the nextPageUrl was defined. if (this.canFetch() && this.props.collection.nextPageUrl) { (_b = (_a = this.props).fetchPage) === null || _b === void 0 ? void 0 : _b.call(_a, this.props.collection.nextPageUrl); } }; Collection.prototype.handleScrollOrResize = function () { var main = this.refs["collection-main"]; if (main) { var scrollTop = main.scrollTop; var scrollHeight = main.scrollHeight; var clientHeight = main.clientHeight; if (scrollTop + clientHeight >= scrollHeight) { this.fetch(); } } }; Collection.prototype.isEmpty = function () { return (this.props.collection.lanes.length === 0 && this.props.collection.books.length === 0 && this.props.collection.navigationLinks.length === 0); }; Collection.VIEW_KEY = "collection-view"; Collection.GRID_VIEW = "grid-view"; Collection.LIST_VIEW = "list-view"; return Collection; }(React.Component)); exports.default = Collection;