libs.jsx

/*
 * Layer cloner
 * Copyright (c) Redokun Srls 2016-2020
 * This project is licensed under the terms of the MIT license.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

function map(obj, callback) {
  var result = [], c;
  for (c = 0, length = obj.length; c < length; c++) {
    result.push(callback(obj[c]));
  }
  return result;
}

function each(obj, callback) {
  var c;
  for (c = 0; c < obj.length; c++) {
    callback.call(obj, obj[c]);
  }
}

function filter(obj, callback) {
  var result = [], c;
  for (c = 0, length = obj.length; c < length; c++) {
    if (callback(obj[c])) {
      result.push(obj[c]);
    }
  }
  return result;
}

function errorAlert(str) {
  alert(str, true);
}

function getStackingIndex(pageItem) {
  var page = pageItem.parentPage;
  if (page === null) {
    return null;
  }

  var pageItems = page.allPageItems;
  for (var i = 0; i < pageItems.length; i++) {
    if (pageItem === pageItems[i]) {
      return i;
    }
  }
  return null;
}