375 lines
12 KiB
JavaScript
375 lines
12 KiB
JavaScript
this.primereact = this.primereact || {};
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this.primereact.datascroller = (function (exports, React, utils, api) {
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'use strict';
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function _interopDefaultLegacy (e) { return e && typeof e === 'object' && 'default' in e ? e : { 'default': e }; }
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var React__default = /*#__PURE__*/_interopDefaultLegacy(React);
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function _classCallCheck(instance, Constructor) {
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if (!(instance instanceof Constructor)) {
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throw new TypeError("Cannot call a class as a function");
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}
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}
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function _defineProperties(target, props) {
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for (var i = 0; i < props.length; i++) {
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var descriptor = props[i];
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descriptor.enumerable = descriptor.enumerable || false;
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descriptor.configurable = true;
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if ("value" in descriptor) descriptor.writable = true;
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Object.defineProperty(target, descriptor.key, descriptor);
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}
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}
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function _createClass(Constructor, protoProps, staticProps) {
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if (protoProps) _defineProperties(Constructor.prototype, protoProps);
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if (staticProps) _defineProperties(Constructor, staticProps);
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Object.defineProperty(Constructor, "prototype", {
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writable: false
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});
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return Constructor;
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}
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function _setPrototypeOf(o, p) {
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_setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
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o.__proto__ = p;
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return o;
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};
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return _setPrototypeOf(o, p);
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}
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function _inherits(subClass, superClass) {
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if (typeof superClass !== "function" && superClass !== null) {
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throw new TypeError("Super expression must either be null or a function");
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}
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subClass.prototype = Object.create(superClass && superClass.prototype, {
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constructor: {
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value: subClass,
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writable: true,
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configurable: true
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}
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});
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Object.defineProperty(subClass, "prototype", {
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writable: false
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});
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if (superClass) _setPrototypeOf(subClass, superClass);
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}
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function _typeof(obj) {
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"@babel/helpers - typeof";
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return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) {
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return typeof obj;
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} : function (obj) {
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return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
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}, _typeof(obj);
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}
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function _assertThisInitialized(self) {
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if (self === void 0) {
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throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
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}
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return self;
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}
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function _possibleConstructorReturn(self, call) {
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if (call && (_typeof(call) === "object" || typeof call === "function")) {
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return call;
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} else if (call !== void 0) {
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throw new TypeError("Derived constructors may only return object or undefined");
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}
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return _assertThisInitialized(self);
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}
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function _getPrototypeOf(o) {
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_getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
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return o.__proto__ || Object.getPrototypeOf(o);
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};
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return _getPrototypeOf(o);
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}
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function _defineProperty(obj, key, value) {
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if (key in obj) {
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Object.defineProperty(obj, key, {
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value: value,
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enumerable: true,
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configurable: true,
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writable: true
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});
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} else {
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obj[key] = value;
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}
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return obj;
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}
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function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
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function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }
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var DataScroller = /*#__PURE__*/function (_Component) {
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_inherits(DataScroller, _Component);
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var _super = _createSuper(DataScroller);
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function DataScroller(props) {
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var _this;
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_classCallCheck(this, DataScroller);
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_this = _super.call(this, props);
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_this.state = {};
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_this.dataToRender = [];
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_this.value = _this.props.value;
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_this.first = 0;
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return _this;
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}
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_createClass(DataScroller, [{
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key: "handleDataChange",
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value: function handleDataChange() {
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if (this.props.lazy) {
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this.dataToRender = this.value;
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this.setState({
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dataToRender: this.dataToRender
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});
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} else {
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this.load();
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}
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}
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}, {
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key: "load",
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value: function load() {
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if (this.props.lazy) {
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if (this.props.onLazyLoad) {
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this.props.onLazyLoad(this.createLazyLoadMetadata());
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}
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this.first = this.first + this.props.rows;
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} else {
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if (this.value) {
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for (var i = this.first; i < this.first + this.props.rows; i++) {
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if (i >= this.value.length) {
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break;
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}
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this.dataToRender.push(this.value[i]);
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}
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if (this.value.length !== 0) {
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this.first = this.first + this.props.rows;
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}
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this.setState({
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dataToRender: this.dataToRender
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});
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}
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}
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}
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}, {
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key: "reset",
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value: function reset() {
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this.first = 0;
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this.dataToRender = [];
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this.setState({
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dataToRender: this.dataToRender
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});
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this.load();
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}
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}, {
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key: "isEmpty",
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value: function isEmpty() {
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return !this.dataToRender || this.dataToRender.length === 0;
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}
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}, {
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key: "createLazyLoadMetadata",
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value: function createLazyLoadMetadata() {
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return {
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first: this.first,
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rows: this.props.rows
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};
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}
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}, {
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key: "bindScrollListener",
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value: function bindScrollListener() {
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var _this2 = this;
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if (this.props.inline) {
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this.scrollFunction = function () {
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var scrollTop = _this2.contentElement.scrollTop,
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scrollHeight = _this2.contentElement.scrollHeight,
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viewportHeight = _this2.contentElement.clientHeight;
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if (scrollTop >= scrollHeight * _this2.props.buffer - viewportHeight) {
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_this2.load();
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}
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};
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this.contentElement.addEventListener('scroll', this.scrollFunction);
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} else {
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this.scrollFunction = function () {
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var docBody = document.body,
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docElement = document.documentElement,
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scrollTop = window.pageYOffset || document.documentElement.scrollTop,
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winHeight = docElement.clientHeight,
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docHeight = Math.max(docBody.scrollHeight, docBody.offsetHeight, winHeight, docElement.scrollHeight, docElement.offsetHeight);
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if (scrollTop >= docHeight * _this2.props.buffer - winHeight) {
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_this2.load();
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}
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};
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window.addEventListener('scroll', this.scrollFunction);
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}
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}
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}, {
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key: "unbindScrollListener",
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value: function unbindScrollListener() {
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if (this.scrollFunction) {
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if (this.props.inline) {
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this.contentElement.removeEventListener('scroll', this.scrollFunction);
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this.contentElement = null;
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} else if (!this.props.loader) {
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window.removeEventListener('scroll', this.scrollFunction);
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}
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}
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this.scrollFunction = null;
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}
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}, {
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key: "componentDidMount",
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value: function componentDidMount() {
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this.load();
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if (!this.props.loader) {
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this.bindScrollListener();
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}
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}
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}, {
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key: "componentDidUpdate",
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value: function componentDidUpdate(prevProps, prevState) {
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var newValue = this.props.value;
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if (newValue && this.value !== newValue) {
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this.value = newValue;
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this.first = 0;
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this.dataToRender = [];
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this.handleDataChange();
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}
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if (prevProps.loader !== this.props.loader && this.props.loader) {
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this.unbindScrollListener();
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}
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}
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}, {
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key: "componentWillUnmount",
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value: function componentWillUnmount() {
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if (this.scrollFunction) {
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this.unbindScrollListener();
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}
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}
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}, {
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key: "renderHeader",
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value: function renderHeader() {
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if (this.props.header) {
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return /*#__PURE__*/React__default["default"].createElement("div", {
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className: "p-datascroller-header"
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}, this.props.header);
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}
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return null;
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}
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}, {
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key: "renderFooter",
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value: function renderFooter() {
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if (this.props.footer) {
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return /*#__PURE__*/React__default["default"].createElement("div", {
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className: "p-datascroller-footer"
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}, this.props.footer);
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}
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return null;
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}
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}, {
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key: "renderItem",
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value: function renderItem(value, index) {
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var content = this.props.itemTemplate ? this.props.itemTemplate(value) : value;
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return /*#__PURE__*/React__default["default"].createElement("li", {
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key: index + '_datascrollitem'
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}, content);
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}
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}, {
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key: "renderEmptyMessage",
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value: function renderEmptyMessage() {
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var content = utils.ObjectUtils.getJSXElement(this.props.emptyMessage, this.props) || api.localeOption('emptyMessage');
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return /*#__PURE__*/React__default["default"].createElement("li", null, content);
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}
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}, {
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key: "renderContent",
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value: function renderContent() {
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var _this3 = this;
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var content = this.state.dataToRender && this.state.dataToRender.length ? this.state.dataToRender.map(function (val, i) {
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return _this3.renderItem(val, i);
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}) : this.renderEmptyMessage();
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return /*#__PURE__*/React__default["default"].createElement("div", {
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ref: function ref(el) {
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return _this3.contentElement = el;
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},
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className: "p-datascroller-content",
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style: {
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'maxHeight': this.props.scrollHeight
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}
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}, /*#__PURE__*/React__default["default"].createElement("ul", {
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className: "p-datascroller-list"
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}, content));
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}
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}, {
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key: "render",
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value: function render() {
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var className = utils.classNames('p-datascroller p-component', this.props.className, {
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'p-datascroller-inline': this.props.inline
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});
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var header = this.renderHeader();
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var footer = this.renderFooter();
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var content = this.renderContent();
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return /*#__PURE__*/React__default["default"].createElement("div", {
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id: this.props.id,
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className: className
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}, header, content, footer);
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}
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}]);
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return DataScroller;
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}(React.Component);
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_defineProperty(DataScroller, "defaultProps", {
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id: null,
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value: null,
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rows: 0,
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inline: false,
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scrollHeight: null,
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loader: false,
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buffer: 0.9,
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style: null,
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className: null,
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onLazyLoad: null,
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emptyMessage: null,
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itemTemplate: null,
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header: null,
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footer: null,
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lazy: false
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});
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exports.DataScroller = DataScroller;
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Object.defineProperty(exports, '__esModule', { value: true });
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return exports;
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})({}, React, primereact.utils, primereact.api);
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