agora-edu-core/lib/stores/domain/common/widget/helper.js

Core APIs for building an online classroom

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.createClosure = exports.convertRatioToLocalWithFixedDimensions = exports.convertRatioToLocalPositionWithFixedDimensions = exports.convertRatioToLocalPosition = exports.convertRatioToLocalDimensions = exports.convertRatioToLocal = exports.convertLocalToRatio = exports.convertLocalPositionToRatio = exports.convertLocalDimensionsToRatio = void 0;
var _clamp = _interopRequireDefault(require("lodash/clamp"));
function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
const createClosure = () => {
  const cacheRegistry = {};
  return {
    prev(key) {
      return cacheRegistry[key];
    },
    next(key, value) {
      cacheRegistry[key] = value;
    }
  };
};
exports.createClosure = createClosure;
const convertRatioToLocal = (diffRatio, sizeRatio, outerSize, resizeBounds) => {
  const {
    position
  } = convertRatioToLocalPosition(diffRatio, sizeRatio, outerSize, resizeBounds);
  const {
    dimensions
  } = convertRatioToLocalDimensions(sizeRatio, outerSize, resizeBounds);
  return {
    position,
    dimensions
  };
};
exports.convertRatioToLocal = convertRatioToLocal;
const convertRatioToLocalWithFixedDimensions = (diffRatio, dimensions, outerSize, resizeBounds) => {
  const {
    position
  } = convertRatioToLocalPositionWithFixedDimensions(diffRatio, dimensions, outerSize, resizeBounds);
  return {
    position,
    dimensions
  };
};
exports.convertRatioToLocalWithFixedDimensions = convertRatioToLocalWithFixedDimensions;
const convertRatioToLocalPosition = (diffRatio, sizeRatio, outerSize, resizeBounds) => {
  const dimensions = {
    width: sizeRatio.ratioWidth * outerSize.width,
    height: sizeRatio.ratioHeight * outerSize.height
  };
  dimensions.width = (0, _clamp.default)(dimensions.width, resizeBounds.minWidth, resizeBounds.maxWidth);
  dimensions.height = (0, _clamp.default)(dimensions.height, resizeBounds.minHeight, resizeBounds.maxHeight);
  const medX = outerSize.width - dimensions.width;
  const medY = outerSize.height - dimensions.height;
  return {
    position: {
      x: medX * diffRatio.ratioX,
      y: medY * diffRatio.ratioY
    }
  };
};
exports.convertRatioToLocalPosition = convertRatioToLocalPosition;
const convertRatioToLocalPositionWithFixedDimensions = (diffRatio, dimensions, outerSize, resizeBounds) => {
  dimensions.width = (0, _clamp.default)(dimensions.width, resizeBounds.minWidth, resizeBounds.maxWidth);
  dimensions.height = (0, _clamp.default)(dimensions.height, resizeBounds.minHeight, resizeBounds.maxHeight);
  const medX = outerSize.width - dimensions.width;
  const medY = outerSize.height - dimensions.height;
  return {
    position: {
      x: medX * diffRatio.ratioX,
      y: medY * diffRatio.ratioY
    }
  };
};
exports.convertRatioToLocalPositionWithFixedDimensions = convertRatioToLocalPositionWithFixedDimensions;
const convertRatioToLocalDimensions = (sizeRatio, outerSize, resizeBounds) => {
  const dimensions = {
    width: sizeRatio.ratioWidth * outerSize.width,
    height: sizeRatio.ratioHeight * outerSize.height
  };
  dimensions.width = (0, _clamp.default)(dimensions.width, resizeBounds.minWidth, resizeBounds.maxWidth);
  dimensions.height = (0, _clamp.default)(dimensions.height, resizeBounds.minHeight, resizeBounds.maxHeight);
  return {
    dimensions
  };
};
exports.convertRatioToLocalDimensions = convertRatioToLocalDimensions;
const convertLocalToRatio = (position, dimensions, medX, medY, outerSize) => {
  const {
    ratioPosition
  } = convertLocalPositionToRatio(position, medX, medY);
  const {
    ratioDimensions
  } = convertLocalDimensionsToRatio(dimensions, outerSize);
  return {
    ratioPosition,
    ratioDimensions
  };
};
exports.convertLocalToRatio = convertLocalToRatio;
const convertLocalPositionToRatio = (position, medX, medY) => {
  const diffRatioX = (0, _clamp.default)(medX === 0 ? 0 : position.x / medX, 0, 1);
  const diffRatioY = (0, _clamp.default)(medY === 0 ? 0 : position.y / medY, 0, 1);
  return {
    ratioPosition: {
      x: diffRatioX,
      y: diffRatioY
    }
  };
};
exports.convertLocalPositionToRatio = convertLocalPositionToRatio;
const convertLocalDimensionsToRatio = (dimensions, outerSize) => {
  const ratioWidth = (0, _clamp.default)(dimensions.width / outerSize.width, 0, 1);
  const ratioHeight = (0, _clamp.default)(dimensions.height / outerSize.height, 0, 1);
  return {
    ratioDimensions: {
      width: ratioWidth,
      height: ratioHeight
    }
  };
};
exports.convertLocalDimensionsToRatio = convertLocalDimensionsToRatio;