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(function() {
'use strict';
// ChildNode (MDN)
var buildDOM = function() {
var nodes = Array.prototype.slice.call(arguments),
frag = document.createDocumentFragment(),
div, node;
while (node = nodes.shift()) {
if (typeof node == "string") {
div = document.createElement("div");
div.innerHTML = node;
while (div.firstChild) {
frag.appendChild(div.firstChild);
}
} else {
frag.appendChild(node);
}
}
return frag;
};
var proto = {
before: function() {
var frag = buildDOM.apply(this, arguments);
this.parentNode.insertBefore(frag, this);
},
after: function() {
var frag = buildDOM.apply(this, arguments);
this.parentNode.insertBefore(frag, this.nextSibling);
},
replaceWith: function() {
if (this.parentNode) {
var frag = buildDOM.apply(this, arguments);
this.parentNode.replaceChild(frag, this);
}
},
remove: function() {
if (this.parentNode) {
this.parentNode.removeChild(this);
}
}
};
var a = ["Element", "DocumentType", "CharacterData"]; // interface
var b = ["before", "after", "replaceWith", "remove"]; // methods
a.forEach(function(v) {
b.forEach(function(func) {
if (window[v]) {
if (window[v].prototype[func]) { return; }
window[v].prototype[func] = proto[func];
}
});
});
// ParentNode.prepend()
// Source: https://github.com/jserz/js_piece/blob/master/DOM/ParentNode/prepend()/prepend().md
(function(arr) {
arr.forEach(function(item) {
if (item.hasOwnProperty('prepend')) {
return;
}
Object.defineProperty(item, 'prepend', {
configurable: true,
enumerable: true,
writable: true,
value: function prepend() {
var argArr = Array.prototype.slice.call(arguments),
docFrag = document.createDocumentFragment();
argArr.forEach(function(argItem) {
var isNode = argItem instanceof Node;
docFrag.appendChild(isNode ? argItem : document.createTextNode(String(argItem)));
});
this.insertBefore(docFrag, this.firstChild);
}
});
});
})([Element.prototype, Document.prototype, DocumentFragment.prototype]);
// Object.assign() (MDN)
if (typeof Object.assign != 'function') {
(function () {
Object.assign = function (target) {
// We must check against these specific cases.
if (target === undefined || target === null) {
throw new TypeError('Cannot convert undefined or null to object');
}
var output = Object(target);
for (var index = 1; index < arguments.length; index++) {
var source = arguments[index];
if (source !== undefined && source !== null) {
for (var nextKey in source) {
if (source.hasOwnProperty(nextKey)) {
output[nextKey] = source[nextKey];
}
}
}
}
return output;
};
})();
}
// Element.prototype.matches (https://plainjs.com/javascript/traversing/get-closest-element-by-selector-39/)
window.Element && function(ElementPrototype) {
ElementPrototype.matches = ElementPrototype.matches ||
ElementPrototype.matchesSelector ||
ElementPrototype.webkitMatchesSelector ||
ElementPrototype.msMatchesSelector ||
function(selector) {
var node = this, nodes = (node.parentNode || node.document).querySelectorAll(selector), i = -1;
while (nodes[++i] && nodes[i] != node);
return !!nodes[i];
};
}(Element.prototype);
// Element.prototype.closest (https://plainjs.com/javascript/traversing/get-closest-element-by-selector-39/)
window.Element && function(ElementPrototype) {
ElementPrototype.closest = ElementPrototype.closest ||
function(selector) {
var el = this;
while (el.matches && !el.matches(selector)) el = el.parentNode;
return el.matches ? el : null;
};
}(Element.prototype);
}());