min-dom/dist/index.esm.js

A minimal dom utility toolbelt

function _mergeNamespaces(n, m) {
  m.forEach(function (e) {
    e && typeof e !== 'string' && !Array.isArray(e) && Object.keys(e).forEach(function (k) {
      if (k !== 'default' && !(k in n)) {
        var d = Object.getOwnPropertyDescriptor(e, k);
        Object.defineProperty(n, k, d.get ? d : {
          enumerable: true,
          get: function () { return e[k]; }
        });
      }
    });
  });
  return Object.freeze(n);
}

/**
 * Flatten array, one level deep.
 *
 * @template T
 *
 * @param {T[][] | T[] | null} [arr]
 *
 * @return {T[]}
 */

const nativeToString = Object.prototype.toString;
const nativeHasOwnProperty = Object.prototype.hasOwnProperty;

function isUndefined(obj) {
  return obj === undefined;
}

function isArray(obj) {
  return nativeToString.call(obj) === '[object Array]';
}

/**
 * Return true, if target owns a property with the given key.
 *
 * @param {Object} target
 * @param {String} key
 *
 * @return {Boolean}
 */
function has(target, key) {
  return nativeHasOwnProperty.call(target, key);
}


/**
 * Iterate over collection; returning something
 * (non-undefined) will stop iteration.
 *
 * @template T
 * @param {Collection<T>} collection
 * @param { ((item: T, idx: number) => (boolean|void)) | ((item: T, key: string) => (boolean|void)) } iterator
 *
 * @return {T} return result that stopped the iteration
 */
function forEach(collection, iterator) {

  let val,
      result;

  if (isUndefined(collection)) {
    return;
  }

  const convertKey = isArray(collection) ? toNum : identity;

  for (let key in collection) {

    if (has(collection, key)) {
      val = collection[key];

      result = iterator(val, convertKey(key));

      if (result === false) {
        return val;
      }
    }
  }
}


function identity(arg) {
  return arg;
}

function toNum(arg) {
  return Number(arg);
}

/**
 * Assigns style attributes in a style-src compliant way.
 *
 * @param {Element} element
 * @param {...Object} styleSources
 *
 * @return {Element} the element
 */
function assign(element, ...styleSources) {
  const target = element.style;

  forEach(styleSources, function(style) {
    if (!style) {
      return;
    }

    forEach(style, function(value, key) {
      target[key] = value;
    });
  });

  return element;
}

/**
 * Set attribute `name` to `val`, or get attr `name`.
 *
 * @param {Element} el
 * @param {String} name
 * @param {String} [val]
 * @api public
 */
function attr(el, name, val) {

  // get
  if (arguments.length == 2) {
    return el.getAttribute(name);
  }

  // remove
  if (val === null) {
    return el.removeAttribute(name);
  }

  // set
  el.setAttribute(name, val);

  return el;
}

/**
 * Taken from https://github.com/component/classes
 *
 * Without the component bits.
 */

/**
 * toString reference.
 */

const toString = Object.prototype.toString;

/**
 * Wrap `el` in a `ClassList`.
 *
 * @param {Element} el
 * @return {ClassList}
 * @api public
 */

function classes(el) {
  return new ClassList(el);
}

/**
 * Initialize a new ClassList for `el`.
 *
 * @param {Element} el
 * @api private
 */

function ClassList(el) {
  if (!el || !el.nodeType) {
    throw new Error('A DOM element reference is required');
  }
  this.el = el;
  this.list = el.classList;
}

/**
 * Add class `name` if not already present.
 *
 * @param {String} name
 * @return {ClassList}
 * @api public
 */

ClassList.prototype.add = function(name) {
  this.list.add(name);
  return this;
};

/**
 * Remove class `name` when present, or
 * pass a regular expression to remove
 * any which match.
 *
 * @param {String|RegExp} name
 * @return {ClassList}
 * @api public
 */

ClassList.prototype.remove = function(name) {
  if ('[object RegExp]' == toString.call(name)) {
    return this.removeMatching(name);
  }

  this.list.remove(name);
  return this;
};

/**
 * Remove all classes matching `re`.
 *
 * @param {RegExp} re
 * @return {ClassList}
 * @api private
 */

ClassList.prototype.removeMatching = function(re) {
  const arr = this.array();
  for (let i = 0; i < arr.length; i++) {
    if (re.test(arr[i])) {
      this.remove(arr[i]);
    }
  }
  return this;
};

/**
 * Toggle class `name`, can force state via `force`.
 *
 * For browsers that support classList, but do not support `force` yet,
 * the mistake will be detected and corrected.
 *
 * @param {String} name
 * @param {Boolean} force
 * @return {ClassList}
 * @api public
 */

ClassList.prototype.toggle = function(name, force) {
  if ('undefined' !== typeof force) {
    if (force !== this.list.toggle(name, force)) {
      this.list.toggle(name); // toggle again to correct
    }
  } else {
    this.list.toggle(name);
  }
  return this;
};

/**
 * Return an array of classes.
 *
 * @return {Array}
 * @api public
 */

ClassList.prototype.array = function() {
  return Array.from(this.list);
};

/**
 * Check if class `name` is present.
 *
 * @param {String} name
 * @return {ClassList}
 * @api public
 */

ClassList.prototype.has =
ClassList.prototype.contains = function(name) {
  return this.list.contains(name);
};

/**
 * Clear utility
 */

/**
 * Removes all children from the given element
 *
 * @param {Element} element
 *
 * @return {Element} the element (for chaining)
 */
function clear(element) {
  var child;

  while ((child = element.firstChild)) {
    element.removeChild(child);
  }

  return element;
}

/**
 * Closest
 *
 * @param {Element} el
 * @param {string} selector
 * @param {boolean} checkYourSelf (optional)
 */
function closest(element, selector, checkYourSelf) {
  var actualElement = checkYourSelf ? element : element.parentNode;

  return actualElement && typeof actualElement.closest === 'function' && actualElement.closest(selector) || null;
}

var componentEvent = {};

var bind$1, unbind$1, prefix;

function detect () {
  bind$1 = window.addEventListener ? 'addEventListener' : 'attachEvent';
  unbind$1 = window.removeEventListener ? 'removeEventListener' : 'detachEvent';
  prefix = bind$1 !== 'addEventListener' ? 'on' : '';
}

/**
 * Bind `el` event `type` to `fn`.
 *
 * @param {Element} el
 * @param {String} type
 * @param {Function} fn
 * @param {Boolean} capture
 * @return {Function}
 * @api public
 */

var bind_1 = componentEvent.bind = function(el, type, fn, capture){
  if (!bind$1) detect();
  el[bind$1](prefix + type, fn, capture || false);
  return fn;
};

/**
 * Unbind `el` event `type`'s callback `fn`.
 *
 * @param {Element} el
 * @param {String} type
 * @param {Function} fn
 * @param {Boolean} capture
 * @return {Function}
 * @api public
 */

var unbind_1 = componentEvent.unbind = function(el, type, fn, capture){
  if (!unbind$1) detect();
  el[unbind$1](prefix + type, fn, capture || false);
  return fn;
};

var event = /*#__PURE__*/_mergeNamespaces({
  __proto__: null,
  bind: bind_1,
  unbind: unbind_1,
  'default': componentEvent
}, [componentEvent]);

/**
 * Module dependencies.
 */

/**
 * Delegate event `type` to `selector`
 * and invoke `fn(e)`. A callback function
 * is returned which may be passed to `.unbind()`.
 *
 * @param {Element} el
 * @param {String} selector
 * @param {String} type
 * @param {Function} fn
 * @param {Boolean} capture
 * @return {Function}
 * @api public
 */

// Some events don't bubble, so we want to bind to the capture phase instead
// when delegating.
var forceCaptureEvents = [ 'focus', 'blur' ];

function bind(el, selector, type, fn, capture) {
  if (forceCaptureEvents.indexOf(type) !== -1) {
    capture = true;
  }

  return event.bind(el, type, function(e) {
    var target = e.target || e.srcElement;
    e.delegateTarget = closest(target, selector, true);
    if (e.delegateTarget) {
      fn.call(el, e);
    }
  }, capture);
}

/**
 * Unbind event `type`'s callback `fn`.
 *
 * @param {Element} el
 * @param {String} type
 * @param {Function} fn
 * @param {Boolean} capture
 * @api public
 */
function unbind(el, type, fn, capture) {
  if (forceCaptureEvents.indexOf(type) !== -1) {
    capture = true;
  }

  return event.unbind(el, type, fn, capture);
}

var delegate = {
  bind,
  unbind
};

/**
 * Expose `parse`.
 */

var domify = parse;

/**
 * Tests for browser support.
 */

var innerHTMLBug = false;
var bugTestDiv;
if (typeof document !== 'undefined') {
  bugTestDiv = document.createElement('div');
  // Setup
  bugTestDiv.innerHTML = '  <link/><table></table><a href="/a">a</a><input type="checkbox"/>';
  // Make sure that link elements get serialized correctly by innerHTML
  // This requires a wrapper element in IE
  innerHTMLBug = !bugTestDiv.getElementsByTagName('link').length;
  bugTestDiv = undefined;
}

/**
 * Wrap map from jquery.
 */

var map = {
  legend: [1, '<fieldset>', '</fieldset>'],
  tr: [2, '<table><tbody>', '</tbody></table>'],
  col: [2, '<table><tbody></tbody><colgroup>', '</colgroup></table>'],
  // for script/link/style tags to work in IE6-8, you have to wrap
  // in a div with a non-whitespace character in front, ha!
  _default: innerHTMLBug ? [1, 'X<div>', '</div>'] : [0, '', '']
};

map.td =
map.th = [3, '<table><tbody><tr>', '</tr></tbody></table>'];

map.option =
map.optgroup = [1, '<select multiple="multiple">', '</select>'];

map.thead =
map.tbody =
map.colgroup =
map.caption =
map.tfoot = [1, '<table>', '</table>'];

map.polyline =
map.ellipse =
map.polygon =
map.circle =
map.text =
map.line =
map.path =
map.rect =
map.g = [1, '<svg xmlns="http://www.w3.org/2000/svg" version="1.1">','</svg>'];

/**
 * Parse `html` and return a DOM Node instance, which could be a TextNode,
 * HTML DOM Node of some kind (<div> for example), or a DocumentFragment
 * instance, depending on the contents of the `html` string.
 *
 * @param {String} html - HTML string to "domify"
 * @param {Document} doc - The `document` instance to create the Node for
 * @return {DOMNode} the TextNode, DOM Node, or DocumentFragment instance
 * @api private
 */

function parse(html, doc) {
  if ('string' != typeof html) throw new TypeError('String expected');

  // default to the global `document` object
  if (!doc) doc = document;

  // tag name
  var m = /<([\w:]+)/.exec(html);
  if (!m) return doc.createTextNode(html);

  html = html.replace(/^\s+|\s+$/g, ''); // Remove leading/trailing whitespace

  var tag = m[1];

  // body support
  if (tag == 'body') {
    var el = doc.createElement('html');
    el.innerHTML = html;
    return el.removeChild(el.lastChild);
  }

  // wrap map
  var wrap = Object.prototype.hasOwnProperty.call(map, tag) ? map[tag] : map._default;
  var depth = wrap[0];
  var prefix = wrap[1];
  var suffix = wrap[2];
  var el = doc.createElement('div');
  el.innerHTML = prefix + html + suffix;
  while (depth--) el = el.lastChild;

  // one element
  if (el.firstChild == el.lastChild) {
    return el.removeChild(el.firstChild);
  }

  // several elements
  var fragment = doc.createDocumentFragment();
  while (el.firstChild) {
    fragment.appendChild(el.removeChild(el.firstChild));
  }

  return fragment;
}

var domify$1 = domify;

/**
 * @param { HTMLElement } element
 * @param { String } selector
 *
 * @return { boolean }
 */
function matches(element, selector) {
  return element && typeof element.matches === 'function' && element.matches(selector) || false;
}

function query(selector, el) {
  el = el || document;

  return el.querySelector(selector);
}

function all(selector, el) {
  el = el || document;

  return el.querySelectorAll(selector);
}

function remove(el) {
  el.parentNode && el.parentNode.removeChild(el);
}

export { assign as assignStyle, attr, classes, clear, closest, delegate, domify$1 as domify, event, matches, query, all as queryAll, remove };
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