docxtemplater/js/scope-manager.js

docx and pptx generator working with templates and data (like Mustache, for Word and Powerpoint documents)

"use strict";

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var _require = require("./errors.js"),
    getScopeParserExecutionError = _require.getScopeParserExecutionError;

var _require2 = require("./utils.js"),
    last = _require2.last;

var _require3 = require("./doc-utils.js"),
    concatArrays = _require3.concatArrays;

function find(list, fn) {
  var length = list.length >>> 0;
  var value;

  for (var i = 0; i < length; i++) {
    value = list[i];

    if (fn.call(this, value, i, list)) {
      return value;
    }
  }

  return undefined;
}

function _getValue(tag, meta, num) {
  var _this = this;

  var scope = this.scopeList[num];

  if (this.root.finishedResolving) {
    var w = this.resolved;
    this.scopePath.slice(this.resolveOffset).forEach(function (p, index) {
      var lIndex = _this.scopeLindex[index];
      w = find(w, function (r) {
        return r.lIndex === lIndex;
      });
      w = w.value[_this.scopePathItem[index]];
    });
    return find(w, function (r) {
      return meta.part.lIndex === r.lIndex;
    }).value;
  } // search in the scopes (in reverse order) and keep the first defined value


  var result;
  var parser;

  if (!this.cachedParsers || !meta.part) {
    parser = this.parser(tag, {
      scopePath: this.scopePath
    });
  } else if (this.cachedParsers[meta.part.lIndex]) {
    parser = this.cachedParsers[meta.part.lIndex];
  } else {
    parser = this.cachedParsers[meta.part.lIndex] = this.parser(tag, {
      scopePath: this.scopePath
    });
  }

  try {
    result = parser.get(scope, this.getContext(meta, num));
  } catch (error) {
    throw getScopeParserExecutionError({
      tag: tag,
      scope: scope,
      error: error,
      offset: meta.part.offset
    });
  }

  if (result == null && num > 0) {
    return _getValue.call(this, tag, meta, num - 1);
  }

  return result;
}

function _getValueAsync(tag, meta, num) {
  var _this2 = this;

  var scope = this.scopeList[num]; // search in the scopes (in reverse order) and keep the first defined value

  var parser;

  if (!this.cachedParsers || !meta.part) {
    parser = this.parser(tag, {
      scopePath: this.scopePath
    });
  } else if (this.cachedParsers[meta.part.lIndex]) {
    parser = this.cachedParsers[meta.part.lIndex];
  } else {
    parser = this.cachedParsers[meta.part.lIndex] = this.parser(tag, {
      scopePath: this.scopePath
    });
  }

  return Promise.resolve().then(function () {
    return parser.get(scope, _this2.getContext(meta, num));
  })["catch"](function (error) {
    throw getScopeParserExecutionError({
      tag: tag,
      scope: scope,
      error: error,
      offset: meta.part.offset
    });
  }).then(function (result) {
    if (result == null && num > 0) {
      return _getValueAsync.call(_this2, tag, meta, num - 1);
    }

    return result;
  });
}

var ScopeManager = /*#__PURE__*/function () {
  function ScopeManager(options) {
    _classCallCheck(this, ScopeManager);

    this.root = options.root || this;
    this.resolveOffset = options.resolveOffset || 0;
    this.scopePath = options.scopePath;
    this.scopePathItem = options.scopePathItem;
    this.scopePathLength = options.scopePathLength;
    this.scopeList = options.scopeList;
    this.scopeLindex = options.scopeLindex;
    this.parser = options.parser;
    this.resolved = options.resolved;
    this.cachedParsers = options.cachedParsers;
  }

  _createClass(ScopeManager, [{
    key: "loopOver",
    value: function loopOver(tag, functor, inverted, meta) {
      return this.loopOverValue(this.getValue(tag, meta), functor, inverted);
    }
  }, {
    key: "functorIfInverted",
    value: function functorIfInverted(inverted, functor, value, i, length) {
      if (inverted) {
        functor(value, i, length);
      }

      return inverted;
    }
  }, {
    key: "isValueFalsy",
    value: function isValueFalsy(value, type) {
      return value == null || !value || type === "[object Array]" && value.length === 0;
    }
  }, {
    key: "loopOverValue",
    value: function loopOverValue(value, functor, inverted) {
      if (this.root.finishedResolving) {
        inverted = false;
      }

      var type = Object.prototype.toString.call(value);

      if (this.isValueFalsy(value, type)) {
        return this.functorIfInverted(inverted, functor, last(this.scopeList), 0, 1);
      }

      if (type === "[object Array]") {
        for (var i = 0; i < value.length; i++) {
          this.functorIfInverted(!inverted, functor, value[i], i, value.length);
        }

        return true;
      }

      if (type === "[object Object]") {
        return this.functorIfInverted(!inverted, functor, value, 0, 1);
      }

      return this.functorIfInverted(!inverted, functor, last(this.scopeList), 0, 1);
    }
  }, {
    key: "getValue",
    value: function getValue(tag, meta) {
      var result = _getValue.call(this, tag, meta, this.scopeList.length - 1);

      if (typeof result === "function") {
        return result(this.scopeList[this.scopeList.length - 1], this);
      }

      return result;
    }
  }, {
    key: "getValueAsync",
    value: function getValueAsync(tag, meta) {
      var _this3 = this;

      return _getValueAsync.call(this, tag, meta, this.scopeList.length - 1).then(function (result) {
        if (typeof result === "function") {
          return result(_this3.scopeList[_this3.scopeList.length - 1], _this3);
        }

        return result;
      });
    }
  }, {
    key: "getContext",
    value: function getContext(meta, num) {
      return {
        num: num,
        meta: meta,
        scopeList: this.scopeList,
        resolved: this.resolved,
        scopePath: this.scopePath,
        scopePathItem: this.scopePathItem,
        scopePathLength: this.scopePathLength
      };
    }
  }, {
    key: "createSubScopeManager",
    value: function createSubScopeManager(scope, tag, i, part, length) {
      return new ScopeManager({
        root: this.root,
        resolveOffset: this.resolveOffset,
        resolved: this.resolved,
        parser: this.parser,
        cachedParsers: this.cachedParsers,
        scopeList: concatArrays([this.scopeList, [scope]]),
        scopePath: concatArrays([this.scopePath, [tag]]),
        scopePathItem: concatArrays([this.scopePathItem, [i]]),
        scopePathLength: concatArrays([this.scopePathLength, [length]]),
        scopeLindex: concatArrays([this.scopeLindex, [part.lIndex]])
      });
    }
  }]);

  return ScopeManager;
}();

module.exports = function (options) {
  options.scopePath = [];
  options.scopePathItem = [];
  options.scopePathLength = [];
  options.scopeLindex = [];
  options.scopeList = [options.tags];
  return new ScopeManager(options);
};