Liferay.Loader.define("document-library-preview-image@2.0.17/preview/js/ImagePreviewer.es", ['module', 'exports', 'require', '@frontend-taglib-clay$clayui/button', '@frontend-taglib-clay$clayui/icon', 'frontend-js-react-web', 'frontend-js-web', 'frontend-js-react-web$prop-types', 'frontend-js-react-web$react'], function (module, exports, require) {
  var define = undefined;
  var global = window;
  {
    function _typeof(obj) {
      "@babel/helpers - typeof";
      if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
        _typeof = function _typeof(obj) {
          return typeof obj;
        };
      } else {
        _typeof = function _typeof(obj) {
          return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
        };
      }return _typeof(obj);
    }

    Object.defineProperty(exports, "__esModule", {
      value: true
    });
    exports["default"] = void 0;

    var _button = _interopRequireDefault(require("@frontend-taglib-clay$clayui/button"));

    var _icon = _interopRequireDefault(require("@frontend-taglib-clay$clayui/icon"));

    var _frontendJsReactWeb = require("frontend-js-react-web");

    var _frontendJsWeb = require("frontend-js-web");

    var _propTypes = _interopRequireDefault(require("frontend-js-react-web$prop-types"));

    var _react = _interopRequireWildcard(require("frontend-js-react-web$react"));

    function _getRequireWildcardCache() {
      if (typeof WeakMap !== "function") return null;var cache = new WeakMap();_getRequireWildcardCache = function _getRequireWildcardCache() {
        return cache;
      };return cache;
    }

    function _interopRequireWildcard(obj) {
      if (obj && obj.__esModule) {
        return obj;
      }if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") {
        return { "default": obj };
      }var cache = _getRequireWildcardCache();if (cache && cache.has(obj)) {
        return cache.get(obj);
      }var newObj = {};var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor;for (var key in obj) {
        if (Object.prototype.hasOwnProperty.call(obj, key)) {
          var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null;if (desc && (desc.get || desc.set)) {
            Object.defineProperty(newObj, key, desc);
          } else {
            newObj[key] = obj[key];
          }
        }
      }newObj["default"] = obj;if (cache) {
        cache.set(obj, newObj);
      }return newObj;
    }

    function _interopRequireDefault(obj) {
      return obj && obj.__esModule ? obj : { "default": obj };
    }

    function _slicedToArray(arr, i) {
      return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest();
    }

    function _nonIterableRest() {
      throw new TypeError("Invalid attempt to destructure non-iterable instance");
    }

    function _iterableToArrayLimit(arr, i) {
      if (!(Symbol.iterator in Object(arr) || Object.prototype.toString.call(arr) === "[object Arguments]")) {
        return;
      }var _arr = [];var _n = true;var _d = false;var _e = undefined;try {
        for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {
          _arr.push(_s.value);if (i && _arr.length === i) break;
        }
      } catch (err) {
        _d = true;_e = err;
      } finally {
        try {
          if (!_n && _i["return"] != null) _i["return"]();
        } finally {
          if (_d) throw _e;
        }
      }return _arr;
    }

    function _arrayWithHoles(arr) {
      if (Array.isArray(arr)) return arr;
    }

    /**
     * Zoom ratio limit that fire the autocenter
     * @type {number}
     */
    var MIN_ZOOM_RATIO_AUTOCENTER = 3;
    /**
     * Available zoom sizes
     * @type {Array<number>}
     */

    var ZOOM_LEVELS = [0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1];
    /**
     * Available reversed zoom sizes
     * @type {Array<number>}
     */

    var ZOOM_LEVELS_REVERSED = ZOOM_LEVELS.slice().reverse();
    /**
     * Component that create an image preview to allow zoom
     * @review
     */

    var ImagePreviewer = function ImagePreviewer(_ref) {
      var alt = _ref.alt,
          imageURL = _ref.imageURL;

      var _useState = (0, _react.useState)(1),
          _useState2 = _slicedToArray(_useState, 2),
          currentZoom = _useState2[0],
          setCurrentZoom = _useState2[1];

      var _useState3 = (0, _react.useState)(null),
          _useState4 = _slicedToArray(_useState3, 2),
          imageHeight = _useState4[0],
          setImageHeight = _useState4[1];

      var _useState5 = (0, _react.useState)(null),
          _useState6 = _slicedToArray(_useState5, 2),
          imageWidth = _useState6[0],
          setImageWidth = _useState6[1];

      var _useState7 = (0, _react.useState)(null),
          _useState8 = _slicedToArray(_useState7, 2),
          imageMargin = _useState8[0],
          setImageMargin = _useState8[1];

      var _useState9 = (0, _react.useState)(true),
          _useState10 = _slicedToArray(_useState9, 2),
          zoomInDisabled = _useState10[0],
          setZoomInDisabled = _useState10[1];

      var _useState11 = (0, _react.useState)(false),
          _useState12 = _slicedToArray(_useState11, 2),
          zoomOutDisabled = _useState12[0],
          setZoomOutDisabled = _useState12[1];

      var _useState13 = (0, _react.useState)(false),
          _useState14 = _slicedToArray(_useState13, 2),
          zoomRatio = _useState14[0],
          setZoomRatio = _useState14[1];

      var image = (0, _react.useRef)();
      var imageContainer = (0, _react.useRef)();
      var isMounted = (0, _frontendJsReactWeb.useIsMounted)();

      var applyZoom = function applyZoom(zoom) {
        var imageElement = image.current;
        setImageHeight(imageElement.naturalHeight * zoom);
        setImageWidth(imageElement.naturalWidth * zoom);
        setZoomRatio(zoom / currentZoom);
        updateToolbar(zoom);
      };

      var getFittingZoom = function getFittingZoom() {
        var imageElement = image.current;
        return imageElement.width / imageElement.naturalWidth;
      };

      var handleWindowResize = (0, _frontendJsWeb.debounce)(function () {
        if (isMounted() && !image.current.style.width) {
          updateToolbar(getFittingZoom());
        }
      }, 250);

      var updateToolbar = function updateToolbar(zoom) {
        setCurrentZoom(zoom);
        setZoomInDisabled(ZOOM_LEVELS_REVERSED[0] === zoom);
        setZoomOutDisabled(ZOOM_LEVELS[0] >= zoom);
      };

      (0, _frontendJsReactWeb.useEventListener)('resize', handleWindowResize, false, window);
      (0, _react.useLayoutEffect)(function () {
        var imageContainerElement = imageContainer.current;
        setImageMargin("".concat(imageHeight > imageContainerElement.clientHeight ? 0 : 'auto', " ").concat(imageWidth > imageContainerElement.clientWidth ? 0 : 'auto'));

        if (zoomRatio && (imageContainerElement.clientWidth < image.current.naturalWidth || imageContainerElement.clientHeight < image.current.naturalHeight)) {
          var scrollLeft;
          var scrollTop;

          if (zoomRatio < MIN_ZOOM_RATIO_AUTOCENTER) {
            scrollLeft = imageContainerElement.clientWidth * (zoomRatio - 1) / 2 + imageContainerElement.scrollLeft * zoomRatio;
            scrollTop = imageContainerElement.clientHeight * (zoomRatio - 1) / 2 + imageContainerElement.scrollTop * zoomRatio;
          } else {
            scrollTop = (imageHeight - imageContainerElement.clientHeight) / 2;
            scrollLeft = (imageWidth - imageContainerElement.clientWidth) / 2;
          }

          imageContainerElement.scrollLeft = scrollLeft;
          imageContainerElement.scrollTop = scrollTop;
          setZoomRatio(null);
        }

        if (!image.current.style.width) {
          updateToolbar(getFittingZoom());
        }
      }, [imageHeight, imageWidth, zoomRatio, imageMargin]);
      return _react["default"].createElement("div", {
        className: "preview-file"
      }, _react["default"].createElement("div", {
        className: "preview-file-container preview-file-max-height",
        ref: imageContainer
      }, _react["default"].createElement("img", {
        alt: alt,
        className: "preview-file-image",
        onLoad: function handleImageLoad() {
          updateToolbar(getFittingZoom());
        },
        ref: image,
        src: imageURL,
        style: function getImageStyles() {
          var imageStyles = {};

          if (imageHeight && imageWidth) {
            imageStyles.height = imageHeight;
            imageStyles.maxHeight = imageHeight;
            imageStyles.maxWidth = imageWidth;
            imageStyles.width = imageWidth;
          }

          if (imageMargin) {
            imageStyles.margin = imageMargin;
          }

          return imageStyles;
        }()
      })), _react["default"].createElement("div", {
        className: "preview-toolbar-container"
      }, _react["default"].createElement(_button["default"].Group, {
        className: "floating-bar"
      }, _react["default"].createElement(_button["default"], {
        className: "btn-floating-bar",
        disabled: zoomOutDisabled,
        displayType: null,
        monospaced: true,
        onClick: function onClick() {
          applyZoom(ZOOM_LEVELS_REVERSED.find(function (zoom) {
            return zoom < currentZoom;
          }));
        },
        title: Liferay.Language.get('zoom-out')
      }, _react["default"].createElement(_icon["default"], {
        symbol: "hr"
      })), _react["default"].createElement(_button["default"], {
        className: "btn-floating-bar btn-floating-bar-text",
        displayType: null,
        onClick: function handlePercentButtonClick() {
          if (currentZoom === 1) {
            setImageHeight(null);
            setImageWidth(null);
          } else {
            applyZoom(1);
          }
        },
        title: currentZoom === 1 ? Liferay.Language.get('zoom-to-fit') : Liferay.Language.get('real-size')
      }, _react["default"].createElement("span", {
        className: "preview-toolbar-label-percent"
      }, Math.round((currentZoom || 0) * 100), "%")), _react["default"].createElement(_button["default"], {
        className: "btn-floating-bar",
        disabled: zoomInDisabled,
        displayType: null,
        monospaced: true,
        onClick: function onClick() {
          applyZoom(ZOOM_LEVELS.find(function (zoom) {
            return zoom > currentZoom;
          }));
        },
        title: Liferay.Language.get('zoom-in')
      }, _react["default"].createElement(_icon["default"], {
        symbol: "plus"
      })))));
    };

    var _default = ImagePreviewer;
    exports["default"] = _default;
    //# sourceMappingURL=ImagePreviewer.es.js.map
  }
});
//# sourceMappingURL=ImagePreviewer.es.js.map