Dom7.js 源码阅读备份

/*===========================
Dom7 Library
===========================*/
var Dom7 = (function () {
var Dom7 = function (arr) {
var _this = this, i = 0;
// Create array-like object
for (i = 0; i < arr.length; i++) {
_this[i] = arr[i];
}
_this.length = arr.length;
// Return collection with methods
return this;
};
var $ = function (selector, context) {
var arr = [], i = 0;
if (selector && !context) {
if (selector instanceof Dom7) {
return selector;
}
}
if (selector) {
// String
if (typeof selector === 'string') {
var els, tempParent, html = selector.trim();
if (html.indexOf('<') >= 0 && html.indexOf('>') >= 0) {
var toCreate = 'div';
if (html.indexOf('<li') === 0) toCreate = 'ul';
if (html.indexOf('<tr') === 0) toCreate = 'tbody';
if (html.indexOf('<td') === 0 || html.indexOf('<th') === 0) toCreate = 'tr';
if (html.indexOf('<tbody') === 0) toCreate = 'table';
if (html.indexOf('<option') === 0) toCreate = 'select';
tempParent = document.createElement(toCreate);
tempParent.innerHTML = selector;
for (i = 0; i < tempParent.childNodes.length; i++) {
arr.push(tempParent.childNodes[i]);
}
}
else {
if (!context && selector[0] === '#' && !selector.match(/[ .<>:~]/)) {
// Pure ID selector
els = [document.getElementById(selector.split('#')[1])];
}
else {
// Other selectors
els = (context || document).querySelectorAll(selector);
}
for (i = 0; i < els.length; i++) {
if (els[i]) arr.push(els[i]);
}
}
}
// Node/element
else if (selector.nodeType || selector === window || selector === document) {
arr.push(selector);
}
//Array of elements or instance of Dom
else if (selector.length > 0 && selector[0].nodeType) {
for (i = 0; i < selector.length; i++) {
arr.push(selector[i]);
}
}
}
return new Dom7(arr);
};
Dom7.prototype = {
// Classes and attriutes
addClass: function (className) {
if (typeof className === 'undefined') {
return this;
}
var classes = className.split(' ');
for (var i = 0; i < classes.length; i++) {
for (var j = 0; j < this.length; j++) {
this[j].classList.add(classes[i]);
}
}
return this;
},
removeClass: function (className) {
var classes = className.split(' ');
for (var i = 0; i < classes.length; i++) {
for (var j = 0; j < this.length; j++) {
this[j].classList.remove(classes[i]);
}
}
return this;
},
hasClass: function (className) {
if (!this[0]) return false;
else return this[0].classList.contains(className);
},
toggleClass: function (className) {
var classes = className.split(' ');
for (var i = 0; i < classes.length; i++) {
for (var j = 0; j < this.length; j++) {
this[j].classList.toggle(classes[i]);
}
}
return this;
},
attr: function (attrs, value) {
if (arguments.length === 1 && typeof attrs === 'string') {
// Get attr
if (this[0]) return this[0].getAttribute(attrs);
else return undefined;
}
else {
// Set attrs
for (var i = 0; i < this.length; i++) {
if (arguments.length === 2) {
// String
this[i].setAttribute(attrs, value);
}
else {
// Object
for (var attrName in attrs) {
this[i][attrName] = attrs[attrName];
this[i].setAttribute(attrName, attrs[attrName]);
}
}
}
return this;
}
},
removeAttr: function (attr) {
for (var i = 0; i < this.length; i++) {
this[i].removeAttribute(attr);
}
return this;
},
data: function (key, value) {
if (typeof value === 'undefined') {
// Get value
if (this[0]) {
var dataKey = this[0].getAttribute('data-' + key);
if (dataKey) return dataKey;
else if (this[0].dom7ElementDataStorage && (key in this[0].dom7ElementDataStorage)) return this[0].dom7ElementDataStorage[key];
else return undefined;
}
else return undefined;
}
else {
// Set value
for (var i = 0; i < this.length; i++) {
var el = this[i];
if (!el.dom7ElementDataStorage) el.dom7ElementDataStorage = {};
el.dom7ElementDataStorage[key] = value;
}
return this;
}
},
// Transforms
transform : function (transform) {
for (var i = 0; i < this.length; i++) {
var elStyle = this[i].style;
elStyle.webkitTransform = elStyle.MsTransform = elStyle.msTransform = elStyle.MozTransform = elStyle.OTransform = elStyle.transform = transform;
}
return this;
},
transition: function (duration) {
if (typeof duration !== 'string') {
duration = duration + 'ms';
}
for (var i = 0; i < this.length; i++) {
var elStyle = this[i].style;
elStyle.webkitTransitionDuration = elStyle.MsTransitionDuration = elStyle.msTransitionDuration = elStyle.MozTransitionDuration = elStyle.OTransitionDuration = elStyle.transitionDuration = duration;
}
return this;
},
//Events
on: function (eventName, targetSelector, listener, capture) {
function handleLiveEvent(e) {
var target = e.target;
if ($(target).is(targetSelector)) listener.call(target, e);
else {
var parents = $(target).parents();
for (var k = 0; k < parents.length; k++) {
if ($(parents[k]).is(targetSelector)) listener.call(parents[k], e);
}
}
}
var events = eventName.split(' ');
var i, j;
for (i = 0; i < this.length; i++) {
if (typeof targetSelector === 'function' || targetSelector === false) {
// Usual events
if (typeof targetSelector === 'function') {
listener = arguments[1];
capture = arguments[2] || false;
}
for (j = 0; j < events.length; j++) {
this[i].addEventListener(events[j], listener, capture);
}
}
else {
//Live events
for (j = 0; j < events.length; j++) {
if (!this[i].dom7LiveListeners) this[i].dom7LiveListeners = [];
this[i].dom7LiveListeners.push({listener: listener, liveListener: handleLiveEvent});
this[i].addEventListener(events[j], handleLiveEvent, capture);
}
}
} return this;
},
off: function (eventName, targetSelector, listener, capture) {
var events = eventName.split(' ');
for (var i = 0; i < events.length; i++) {
for (var j = 0; j < this.length; j++) {
if (typeof targetSelector === 'function' || targetSelector === false) {
// Usual events
if (typeof targetSelector === 'function') {
listener = arguments[1];
capture = arguments[2] || false;
}
this[j].removeEventListener(events[i], listener, capture);
}
else {
// Live event
if (this[j].dom7LiveListeners) {
for (var k = 0; k < this[j].dom7LiveListeners.length; k++) {
if (this[j].dom7LiveListeners[k].listener === listener) {
this[j].removeEventListener(events[i], this[j].dom7LiveListeners[k].liveListener, capture);
}
}
}
}
}
}
return this;
},
once: function (eventName, targetSelector, listener, capture) {
var dom = this;
if (typeof targetSelector === 'function') {
targetSelector = false;
listener = arguments[1];
capture = arguments[2];
}
function proxy(e) {
listener(e);
dom.off(eventName, targetSelector, proxy, capture);
}
dom.on(eventName, targetSelector, proxy, capture);
},
trigger: function (eventName, eventData) {
for (var i = 0; i < this.length; i++) {
var evt;
try {
evt = new window.CustomEvent(eventName, {detail: eventData, bubbles: true, cancelable: true});
}
catch (e) {
evt = document.createEvent('Event');
evt.initEvent(eventName, true, true);
evt.detail = eventData;
}
this[i].dispatchEvent(evt);
}
return this;
},
transitionEnd: function (callback) {
var events = ['webkitTransitionEnd', 'transitionend', 'oTransitionEnd', 'MSTransitionEnd', 'msTransitionEnd'],
i, j, dom = this;
function fireCallBack(e) {
/*jshint validthis:true */
if (e.target !== this) return;
callback.call(this, e);
for (i = 0; i < events.length; i++) {
dom.off(events[i], fireCallBack);
}
}
if (callback) {
for (i = 0; i < events.length; i++) {
dom.on(events[i], fireCallBack);
}
}
return this;
},
// Sizing/Styles
width: function () {
if (this[0] === window) {
return window.innerWidth;
}
else {
if (this.length > 0) {
return parseFloat(this.css('width'));
}
else {
return null;
}
}
},
outerWidth: function (includeMargins) {
if (this.length > 0) {
if (includeMargins)
return this[0].offsetWidth + parseFloat(this.css('margin-right')) + parseFloat(this.css('margin-left'));
else
return this[0].offsetWidth;
}
else return null;
},
height: function () {
if (this[0] === window) {
return window.innerHeight;
}
else {
if (this.length > 0) {
return parseFloat(this.css('height'));
}
else {
return null;
}
}
},
outerHeight: function (includeMargins) {
if (this.length > 0) {
if (includeMargins)
return this[0].offsetHeight + parseFloat(this.css('margin-top')) + parseFloat(this.css('margin-bottom'));
else
return this[0].offsetHeight;
}
else return null;
},
offset: function () {
if (this.length > 0) {
var el = this[0];
var box = el.getBoundingClientRect();
var body = document.body;
var clientTop = el.clientTop || body.clientTop || 0;
var clientLeft = el.clientLeft || body.clientLeft || 0;
var scrollTop = window.pageYOffset || el.scrollTop;
var scrollLeft = window.pageXOffset || el.scrollLeft;
return {
top: box.top + scrollTop - clientTop,
left: box.left + scrollLeft - clientLeft
};
}
else {
return null;
}
},
css: function (props, value) {
var i;
if (arguments.length === 1) {
if (typeof props === 'string') {
if (this[0]) return window.getComputedStyle(this[0], null).getPropertyValue(props);
}
else {
for (i = 0; i < this.length; i++) {
for (var prop in props) {
this[i].style[prop] = props[prop];
}
}
return this;
}
}
if (arguments.length === 2 && typeof props === 'string') {
for (i = 0; i < this.length; i++) {
this[i].style[props] = value;
}
return this;
}
return this;
}, //Dom manipulation
each: function (callback) {
for (var i = 0; i < this.length; i++) {
callback.call(this[i], i, this[i]);
}
return this;
},
html: function (html) {
if (typeof html === 'undefined') {
return this[0] ? this[0].innerHTML : undefined;
}
else {
for (var i = 0; i < this.length; i++) {
this[i].innerHTML = html;
}
return this;
}
},
is: function (selector) {
if (!this[0]) return false;
var compareWith, i;
if (typeof selector === 'string') {
var el = this[0];
if (el === document) return selector === document;
if (el === window) return selector === window; if (el.matches) return el.matches(selector);
else if (el.webkitMatchesSelector) return el.webkitMatchesSelector(selector);
else if (el.mozMatchesSelector) return el.mozMatchesSelector(selector);
else if (el.msMatchesSelector) return el.msMatchesSelector(selector);
else {
compareWith = $(selector);
for (i = 0; i < compareWith.length; i++) {
if (compareWith[i] === this[0]) return true;
}
return false;
}
}
else if (selector === document) return this[0] === document;
else if (selector === window) return this[0] === window;
else {
if (selector.nodeType || selector instanceof Dom7) {
compareWith = selector.nodeType ? [selector] : selector;
for (i = 0; i < compareWith.length; i++) {
if (compareWith[i] === this[0]) return true;
}
return false;
}
return false;
} },
index: function () {
if (this[0]) {
var child = this[0];
var i = 0;
while ((child = child.previousSibling) !== null) {
if (child.nodeType === 1) i++;
}
return i;
}
else return undefined;
},
eq: function (index) {
if (typeof index === 'undefined') return this;
var length = this.length;
var returnIndex;
if (index > length - 1) {
return new Dom7([]);
}
if (index < 0) {
returnIndex = length + index;
if (returnIndex < 0) return new Dom7([]);
else return new Dom7([this[returnIndex]]);
}
return new Dom7([this[index]]);
},
append: function (newChild) {
var i, j;
for (i = 0; i < this.length; i++) {
if (typeof newChild === 'string') {
var tempDiv = document.createElement('div');
tempDiv.innerHTML = newChild;
while (tempDiv.firstChild) {
this[i].appendChild(tempDiv.firstChild);
}
}
else if (newChild instanceof Dom7) {
for (j = 0; j < newChild.length; j++) {
this[i].appendChild(newChild[j]);
}
}
else {
this[i].appendChild(newChild);
}
}
return this;
},
prepend: function (newChild) {
var i, j;
for (i = 0; i < this.length; i++) {
if (typeof newChild === 'string') {
var tempDiv = document.createElement('div');
tempDiv.innerHTML = newChild;
for (j = tempDiv.childNodes.length - 1; j >= 0; j--) {
this[i].insertBefore(tempDiv.childNodes[j], this[i].childNodes[0]);
}
// this[i].insertAdjacentHTML('afterbegin', newChild);
}
else if (newChild instanceof Dom7) {
for (j = 0; j < newChild.length; j++) {
this[i].insertBefore(newChild[j], this[i].childNodes[0]);
}
}
else {
this[i].insertBefore(newChild, this[i].childNodes[0]);
}
}
return this;
},
insertBefore: function (selector) {
var before = $(selector);
for (var i = 0; i < this.length; i++) {
if (before.length === 1) {
before[0].parentNode.insertBefore(this[i], before[0]);
}
else if (before.length > 1) {
for (var j = 0; j < before.length; j++) {
before[j].parentNode.insertBefore(this[i].cloneNode(true), before[j]);
}
}
}
},
insertAfter: function (selector) {
var after = $(selector);
for (var i = 0; i < this.length; i++) {
if (after.length === 1) {
after[0].parentNode.insertBefore(this[i], after[0].nextSibling);
}
else if (after.length > 1) {
for (var j = 0; j < after.length; j++) {
after[j].parentNode.insertBefore(this[i].cloneNode(true), after[j].nextSibling);
}
}
}
},
next: function (selector) {
if (this.length > 0) {
if (selector) {
if (this[0].nextElementSibling && $(this[0].nextElementSibling).is(selector)) return new Dom7([this[0].nextElementSibling]);
else return new Dom7([]);
}
else {
if (this[0].nextElementSibling) return new Dom7([this[0].nextElementSibling]);
else return new Dom7([]);
}
}
else return new Dom7([]);
},
nextAll: function (selector) {
var nextEls = [];
var el = this[0];
if (!el) return new Dom7([]);
while (el.nextElementSibling) {
var next = el.nextElementSibling;
if (selector) {
if($(next).is(selector)) nextEls.push(next);
}
else nextEls.push(next);
el = next;
}
return new Dom7(nextEls);
},
prev: function (selector) {
if (this.length > 0) {
if (selector) {
if (this[0].previousElementSibling && $(this[0].previousElementSibling).is(selector)) return new Dom7([this[0].previousElementSibling]);
else return new Dom7([]);
}
else {
if (this[0].previousElementSibling) return new Dom7([this[0].previousElementSibling]);
else return new Dom7([]);
}
}
else return new Dom7([]);
},
prevAll: function (selector) {
var prevEls = [];
var el = this[0];
if (!el) return new Dom7([]);
while (el.previousElementSibling) {
var prev = el.previousElementSibling;
if (selector) {
if($(prev).is(selector)) prevEls.push(prev);
}
else prevEls.push(prev);
el = prev;
}
return new Dom7(prevEls);
},
parent: function (selector) {
var parents = [];
for (var i = 0; i < this.length; i++) {
if (selector) {
if ($(this[i].parentNode).is(selector)) parents.push(this[i].parentNode);
}
else {
parents.push(this[i].parentNode);
}
}
return $($.unique(parents));
},
parents: function (selector) {
var parents = [];
for (var i = 0; i < this.length; i++) {
var parent = this[i].parentNode;
while (parent) {
if (selector) {
if ($(parent).is(selector)) parents.push(parent);
}
else {
parents.push(parent);
}
parent = parent.parentNode;
}
}
return $($.unique(parents));
},
find : function (selector) {
var foundElements = [];
for (var i = 0; i < this.length; i++) {
var found = this[i].querySelectorAll(selector);
for (var j = 0; j < found.length; j++) {
foundElements.push(found[j]);
}
}
return new Dom7(foundElements);
},
children: function (selector) {
var children = [];
for (var i = 0; i < this.length; i++) {
var childNodes = this[i].childNodes; for (var j = 0; j < childNodes.length; j++) {
if (!selector) {
if (childNodes[j].nodeType === 1) children.push(childNodes[j]);
}
else {
if (childNodes[j].nodeType === 1 && $(childNodes[j]).is(selector)) children.push(childNodes[j]);
}
}
}
return new Dom7($.unique(children));
},
remove: function () {
for (var i = 0; i < this.length; i++) {
if (this[i].parentNode) this[i].parentNode.removeChild(this[i]);
}
return this;
},
add: function () {
var dom = this;
var i, j;
for (i = 0; i < arguments.length; i++) {
var toAdd = $(arguments[i]);
for (j = 0; j < toAdd.length; j++) {
dom[dom.length] = toAdd[j];
dom.length++;
}
}
return dom;
}
};
$.fn = Dom7.prototype;
$.unique = function (arr) {
var unique = [];
for (var i = 0; i < arr.length; i++) {
if (unique.indexOf(arr[i]) === -1) unique.push(arr[i]);
}
return unique;
}; return $;
})();