mirror of
https://github.com/twbs/bootstrap.git
synced 2024-11-29 11:24:18 +01:00
380 lines
12 KiB
JavaScript
380 lines
12 KiB
JavaScript
(function (global, factory) {
|
|
typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory(require('jquery'), require('./util.js')) :
|
|
typeof define === 'function' && define.amd ? define(['jquery', './util.js'], factory) :
|
|
(global.ScrollSpy = factory(global.jQuery,global.Util));
|
|
}(this, (function ($,Util) { 'use strict';
|
|
|
|
$ = $ && $.hasOwnProperty('default') ? $['default'] : $;
|
|
Util = Util && Util.hasOwnProperty('default') ? Util['default'] : Util;
|
|
|
|
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;
|
|
}
|
|
|
|
function _defineProperty(obj, key, value) {
|
|
if (key in obj) {
|
|
Object.defineProperty(obj, key, {
|
|
value: value,
|
|
enumerable: true,
|
|
configurable: true,
|
|
writable: true
|
|
});
|
|
} else {
|
|
obj[key] = value;
|
|
}
|
|
|
|
return obj;
|
|
}
|
|
|
|
function _objectSpread(target) {
|
|
for (var i = 1; i < arguments.length; i++) {
|
|
var source = arguments[i] != null ? arguments[i] : {};
|
|
var ownKeys = Object.keys(source);
|
|
|
|
if (typeof Object.getOwnPropertySymbols === 'function') {
|
|
ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) {
|
|
return Object.getOwnPropertyDescriptor(source, sym).enumerable;
|
|
}));
|
|
}
|
|
|
|
ownKeys.forEach(function (key) {
|
|
_defineProperty(target, key, source[key]);
|
|
});
|
|
}
|
|
|
|
return target;
|
|
}
|
|
|
|
/**
|
|
* --------------------------------------------------------------------------
|
|
* Bootstrap (v4.1.3): scrollspy.js
|
|
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
|
|
* --------------------------------------------------------------------------
|
|
*/
|
|
|
|
var ScrollSpy = function ($$$1) {
|
|
/**
|
|
* ------------------------------------------------------------------------
|
|
* Constants
|
|
* ------------------------------------------------------------------------
|
|
*/
|
|
var NAME = 'scrollspy';
|
|
var VERSION = '4.1.3';
|
|
var DATA_KEY = 'bs.scrollspy';
|
|
var EVENT_KEY = "." + DATA_KEY;
|
|
var DATA_API_KEY = '.data-api';
|
|
var JQUERY_NO_CONFLICT = $$$1.fn[NAME];
|
|
var Default = {
|
|
offset: 10,
|
|
method: 'auto',
|
|
target: ''
|
|
};
|
|
var DefaultType = {
|
|
offset: 'number',
|
|
method: 'string',
|
|
target: '(string|element)'
|
|
};
|
|
var Event = {
|
|
ACTIVATE: "activate" + EVENT_KEY,
|
|
SCROLL: "scroll" + EVENT_KEY,
|
|
LOAD_DATA_API: "load" + EVENT_KEY + DATA_API_KEY
|
|
};
|
|
var ClassName = {
|
|
DROPDOWN_ITEM: 'dropdown-item',
|
|
DROPDOWN_MENU: 'dropdown-menu',
|
|
ACTIVE: 'active'
|
|
};
|
|
var Selector = {
|
|
DATA_SPY: '[data-spy="scroll"]',
|
|
ACTIVE: '.active',
|
|
NAV_LIST_GROUP: '.nav, .list-group',
|
|
NAV_LINKS: '.nav-link',
|
|
NAV_ITEMS: '.nav-item',
|
|
LIST_ITEMS: '.list-group-item',
|
|
DROPDOWN: '.dropdown',
|
|
DROPDOWN_ITEMS: '.dropdown-item',
|
|
DROPDOWN_TOGGLE: '.dropdown-toggle'
|
|
};
|
|
var OffsetMethod = {
|
|
OFFSET: 'offset',
|
|
POSITION: 'position'
|
|
/**
|
|
* ------------------------------------------------------------------------
|
|
* Class Definition
|
|
* ------------------------------------------------------------------------
|
|
*/
|
|
|
|
};
|
|
|
|
var ScrollSpy =
|
|
/*#__PURE__*/
|
|
function () {
|
|
function ScrollSpy(element, config) {
|
|
var _this = this;
|
|
|
|
this._element = element;
|
|
this._scrollElement = element.tagName === 'BODY' ? window : element;
|
|
this._config = this._getConfig(config);
|
|
this._selector = this._config.target + " " + Selector.NAV_LINKS + "," + (this._config.target + " " + Selector.LIST_ITEMS + ",") + (this._config.target + " " + Selector.DROPDOWN_ITEMS);
|
|
this._offsets = [];
|
|
this._targets = [];
|
|
this._activeTarget = null;
|
|
this._scrollHeight = 0;
|
|
$$$1(this._scrollElement).on(Event.SCROLL, function (event) {
|
|
return _this._process(event);
|
|
});
|
|
this.refresh();
|
|
|
|
this._process();
|
|
} // Getters
|
|
|
|
|
|
var _proto = ScrollSpy.prototype;
|
|
|
|
// Public
|
|
_proto.refresh = function refresh() {
|
|
var _this2 = this;
|
|
|
|
var autoMethod = this._scrollElement === this._scrollElement.window ? OffsetMethod.OFFSET : OffsetMethod.POSITION;
|
|
var offsetMethod = this._config.method === 'auto' ? autoMethod : this._config.method;
|
|
var offsetBase = offsetMethod === OffsetMethod.POSITION ? this._getScrollTop() : 0;
|
|
this._offsets = [];
|
|
this._targets = [];
|
|
this._scrollHeight = this._getScrollHeight();
|
|
var targets = [].slice.call(document.querySelectorAll(this._selector));
|
|
targets.map(function (element) {
|
|
var target;
|
|
var targetSelector = Util.getSelectorFromElement(element);
|
|
|
|
if (targetSelector) {
|
|
target = document.querySelector(targetSelector);
|
|
}
|
|
|
|
if (target) {
|
|
var targetBCR = target.getBoundingClientRect();
|
|
|
|
if (targetBCR.width || targetBCR.height) {
|
|
// TODO (fat): remove sketch reliance on jQuery position/offset
|
|
return [$$$1(target)[offsetMethod]().top + offsetBase, targetSelector];
|
|
}
|
|
}
|
|
|
|
return null;
|
|
}).filter(function (item) {
|
|
return item;
|
|
}).sort(function (a, b) {
|
|
return a[0] - b[0];
|
|
}).forEach(function (item) {
|
|
_this2._offsets.push(item[0]);
|
|
|
|
_this2._targets.push(item[1]);
|
|
});
|
|
};
|
|
|
|
_proto.dispose = function dispose() {
|
|
$$$1.removeData(this._element, DATA_KEY);
|
|
$$$1(this._scrollElement).off(EVENT_KEY);
|
|
this._element = null;
|
|
this._scrollElement = null;
|
|
this._config = null;
|
|
this._selector = null;
|
|
this._offsets = null;
|
|
this._targets = null;
|
|
this._activeTarget = null;
|
|
this._scrollHeight = null;
|
|
}; // Private
|
|
|
|
|
|
_proto._getConfig = function _getConfig(config) {
|
|
config = _objectSpread({}, Default, typeof config === 'object' && config ? config : {});
|
|
|
|
if (typeof config.target !== 'string') {
|
|
var id = $$$1(config.target).attr('id');
|
|
|
|
if (!id) {
|
|
id = Util.getUID(NAME);
|
|
$$$1(config.target).attr('id', id);
|
|
}
|
|
|
|
config.target = "#" + id;
|
|
}
|
|
|
|
Util.typeCheckConfig(NAME, config, DefaultType);
|
|
return config;
|
|
};
|
|
|
|
_proto._getScrollTop = function _getScrollTop() {
|
|
return this._scrollElement === window ? this._scrollElement.pageYOffset : this._scrollElement.scrollTop;
|
|
};
|
|
|
|
_proto._getScrollHeight = function _getScrollHeight() {
|
|
return this._scrollElement.scrollHeight || Math.max(document.body.scrollHeight, document.documentElement.scrollHeight);
|
|
};
|
|
|
|
_proto._getOffsetHeight = function _getOffsetHeight() {
|
|
return this._scrollElement === window ? window.innerHeight : this._scrollElement.getBoundingClientRect().height;
|
|
};
|
|
|
|
_proto._process = function _process() {
|
|
var scrollTop = this._getScrollTop() + this._config.offset;
|
|
|
|
var scrollHeight = this._getScrollHeight();
|
|
|
|
var maxScroll = this._config.offset + scrollHeight - this._getOffsetHeight();
|
|
|
|
if (this._scrollHeight !== scrollHeight) {
|
|
this.refresh();
|
|
}
|
|
|
|
if (scrollTop >= maxScroll) {
|
|
var target = this._targets[this._targets.length - 1];
|
|
|
|
if (this._activeTarget !== target) {
|
|
this._activate(target);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
if (this._activeTarget && scrollTop < this._offsets[0] && this._offsets[0] > 0) {
|
|
this._activeTarget = null;
|
|
|
|
this._clear();
|
|
|
|
return;
|
|
}
|
|
|
|
var offsetLength = this._offsets.length;
|
|
|
|
for (var i = offsetLength; i--;) {
|
|
var isActiveTarget = this._activeTarget !== this._targets[i] && scrollTop >= this._offsets[i] && (typeof this._offsets[i + 1] === 'undefined' || scrollTop < this._offsets[i + 1]);
|
|
|
|
if (isActiveTarget) {
|
|
this._activate(this._targets[i]);
|
|
}
|
|
}
|
|
};
|
|
|
|
_proto._activate = function _activate(target) {
|
|
this._activeTarget = target;
|
|
|
|
this._clear();
|
|
|
|
var queries = this._selector.split(','); // eslint-disable-next-line arrow-body-style
|
|
|
|
|
|
queries = queries.map(function (selector) {
|
|
return selector + "[data-target=\"" + target + "\"]," + (selector + "[href=\"" + target + "\"]");
|
|
});
|
|
var $link = $$$1([].slice.call(document.querySelectorAll(queries.join(','))));
|
|
|
|
if ($link.hasClass(ClassName.DROPDOWN_ITEM)) {
|
|
$link.closest(Selector.DROPDOWN).find(Selector.DROPDOWN_TOGGLE).addClass(ClassName.ACTIVE);
|
|
$link.addClass(ClassName.ACTIVE);
|
|
} else {
|
|
// Set triggered link as active
|
|
$link.addClass(ClassName.ACTIVE); // Set triggered links parents as active
|
|
// With both <ul> and <nav> markup a parent is the previous sibling of any nav ancestor
|
|
|
|
$link.parents(Selector.NAV_LIST_GROUP).prev(Selector.NAV_LINKS + ", " + Selector.LIST_ITEMS).addClass(ClassName.ACTIVE); // Handle special case when .nav-link is inside .nav-item
|
|
|
|
$link.parents(Selector.NAV_LIST_GROUP).prev(Selector.NAV_ITEMS).children(Selector.NAV_LINKS).addClass(ClassName.ACTIVE);
|
|
}
|
|
|
|
$$$1(this._scrollElement).trigger(Event.ACTIVATE, {
|
|
relatedTarget: target
|
|
});
|
|
};
|
|
|
|
_proto._clear = function _clear() {
|
|
var nodes = [].slice.call(document.querySelectorAll(this._selector));
|
|
$$$1(nodes).filter(Selector.ACTIVE).removeClass(ClassName.ACTIVE);
|
|
}; // Static
|
|
|
|
|
|
ScrollSpy._jQueryInterface = function _jQueryInterface(config) {
|
|
return this.each(function () {
|
|
var data = $$$1(this).data(DATA_KEY);
|
|
|
|
var _config = typeof config === 'object' && config;
|
|
|
|
if (!data) {
|
|
data = new ScrollSpy(this, _config);
|
|
$$$1(this).data(DATA_KEY, data);
|
|
}
|
|
|
|
if (typeof config === 'string') {
|
|
if (typeof data[config] === 'undefined') {
|
|
throw new TypeError("No method named \"" + config + "\"");
|
|
}
|
|
|
|
data[config]();
|
|
}
|
|
});
|
|
};
|
|
|
|
_createClass(ScrollSpy, null, [{
|
|
key: "VERSION",
|
|
get: function get() {
|
|
return VERSION;
|
|
}
|
|
}, {
|
|
key: "Default",
|
|
get: function get() {
|
|
return Default;
|
|
}
|
|
}]);
|
|
|
|
return ScrollSpy;
|
|
}();
|
|
/**
|
|
* ------------------------------------------------------------------------
|
|
* Data Api implementation
|
|
* ------------------------------------------------------------------------
|
|
*/
|
|
|
|
|
|
$$$1(window).on(Event.LOAD_DATA_API, function () {
|
|
var scrollSpys = [].slice.call(document.querySelectorAll(Selector.DATA_SPY));
|
|
var scrollSpysLength = scrollSpys.length;
|
|
|
|
for (var i = scrollSpysLength; i--;) {
|
|
var $spy = $$$1(scrollSpys[i]);
|
|
|
|
ScrollSpy._jQueryInterface.call($spy, $spy.data());
|
|
}
|
|
});
|
|
/**
|
|
* ------------------------------------------------------------------------
|
|
* jQuery
|
|
* ------------------------------------------------------------------------
|
|
*/
|
|
|
|
$$$1.fn[NAME] = ScrollSpy._jQueryInterface;
|
|
$$$1.fn[NAME].Constructor = ScrollSpy;
|
|
|
|
$$$1.fn[NAME].noConflict = function () {
|
|
$$$1.fn[NAME] = JQUERY_NO_CONFLICT;
|
|
return ScrollSpy._jQueryInterface;
|
|
};
|
|
|
|
return ScrollSpy;
|
|
}($);
|
|
|
|
return ScrollSpy;
|
|
|
|
})));
|
|
//# sourceMappingURL=scrollspy.js.map
|