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Diffstat (limited to 'js/scrollspy.js')
| -rw-r--r-- | js/scrollspy.js | 346 |
1 files changed, 0 insertions, 346 deletions
diff --git a/js/scrollspy.js b/js/scrollspy.js deleted file mode 100644 index 150241b540..0000000000 --- a/js/scrollspy.js +++ /dev/null @@ -1,346 +0,0 @@ -/** ======================================================================= - * Bootstrap: scrollspy.js v4.0.0 - * http://getbootstrap.com/javascript/#scrollspy - * ======================================================================== - * Copyright 2011-2015 Twitter, Inc. - * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE) - * ======================================================================== - * @fileoverview - Bootstrap's scrollspy plugin. - * - * Public Methods & Properties: - * - * + $.scrollspy - * + $.scrollspy.noConflict - * + $.scrollspy.Constructor - * + $.scrollspy.Constructor.VERSION - * + $.scrollspy.Constructor.Defaults - * + $.scrollspy.Constructor.Defaults.offset - * + $.scrollspy.Constructor.prototype.refresh - * - * ======================================================================== - */ - -'use strict'; - - -/** - * Our scrollspy class. - * @param {Element!} element - * @param {Object=} opt_config - * @constructor - */ -function ScrollSpy(element, opt_config) { - - /** @private {Element|Window} */ - this._scrollElement = element.tagName == 'BODY' ? window : element - - /** @private {Object} */ - this._config = $.extend({}, ScrollSpy['Defaults'], opt_config) - - /** @private {string} */ - this._selector = (this._config.target || '') + ' .nav li > a' - - /** @private {Array} */ - this._offsets = [] - - /** @private {Array} */ - this._targets = [] - - /** @private {Element} */ - this._activeTarget = null - - /** @private {number} */ - this._scrollHeight = 0 - - $(this._scrollElement).on('scroll.bs.scrollspy', this._process.bind(this)) - - this['refresh']() - - this._process() -} - - -/** - * @const - * @type {string} - */ -ScrollSpy['VERSION'] = '4.0.0' - - -/** - * @const - * @type {Object} - */ -ScrollSpy['Defaults'] = { - 'offset': 10 -} - - -/** - * @const - * @type {string} - * @private - */ -ScrollSpy._NAME = 'scrollspy' - - -/** - * @const - * @type {string} - * @private - */ -ScrollSpy._DATA_KEY = 'bs.scrollspy' - - -/** - * @const - * @type {Function} - * @private - */ -ScrollSpy._JQUERY_NO_CONFLICT = $.fn[ScrollSpy._NAME] - - -/** - * @const - * @enum {string} - * @private - */ -ScrollSpy._Event = { - ACTIVATE: 'activate.bs.scrollspy' -} - - -/** - * @const - * @enum {string} - * @private - */ -ScrollSpy._ClassName = { - DROPDOWN_MENU : 'dropdown-menu', - ACTIVE : 'active' -} - - -/** - * @const - * @enum {string} - * @private - */ -ScrollSpy._Selector = { - DATA_SPY : '[data-spy="scroll"]', - ACTIVE : '.active', - LI_DROPDOWN : 'li.dropdown', - LI : 'li' -} - - -/** - * @param {Object=} opt_config - * @this {jQuery} - * @return {jQuery} - * @private - */ -ScrollSpy._jQueryInterface = function (opt_config) { - return this.each(function () { - var data = $(this).data(ScrollSpy._DATA_KEY) - var config = typeof opt_config === 'object' && opt_config || null - - if (!data) { - data = new ScrollSpy(this, config) - $(this).data(ScrollSpy._DATA_KEY, data) - } - - if (typeof opt_config === 'string') { - data[opt_config]() - } - }) -} - - -/** - * Refresh the scrollspy target cache - */ -ScrollSpy.prototype['refresh'] = function () { - var offsetMethod = 'offset' - var offsetBase = 0 - - if (this._scrollElement !== this._scrollElement.window) { - offsetMethod = 'position' - offsetBase = this._getScrollTop() - } - - this._offsets = [] - this._targets = [] - - this._scrollHeight = this._getScrollHeight() - - var targets = /** @type {Array.<Element>} */ ($.makeArray($(this._selector))) - - targets - .map(function (element, index) { - var target - var targetSelector = Bootstrap.getSelectorFromElement(element) - - if (targetSelector) { - target = $(targetSelector)[0] - } - - if (target && (target.offsetWidth || target.offsetHeight)) { - // todo (fat): remove sketch reliance on jQuery position/offset - return [$(target)[offsetMethod]().top + offsetBase, targetSelector] - } - }) - .filter(function (item) { return item }) - .sort(function (a, b) { return a[0] - b[0] }) - .forEach(function (item, index) { - this._offsets.push(item[0]) - this._targets.push(item[1]) - }.bind(this)) -} - - -/** - * @private - */ -ScrollSpy.prototype._getScrollTop = function () { - return this._scrollElement === window ? - this._scrollElement.scrollY : this._scrollElement.scrollTop -} - - -/** - * @private - */ -ScrollSpy.prototype._getScrollHeight = function () { - return this._scrollElement.scrollHeight - || Math.max(document.body.scrollHeight, document.documentElement.scrollHeight) -} - - -/** - * @private - */ -ScrollSpy.prototype._process = function () { - var scrollTop = this._getScrollTop() + this._config.offset - var scrollHeight = this._getScrollHeight() - var maxScroll = this._config.offset + scrollHeight - this._scrollElement.offsetHeight - - if (this._scrollHeight != scrollHeight) { - this['refresh']() - } - - if (scrollTop >= maxScroll) { - var target = this._targets[this._targets.length - 1] - - if (this._activeTarget != target) { - this._activate(target) - } - } - - if (this._activeTarget && scrollTop < this._offsets[0]) { - this._activeTarget = null - this._clear() - return - } - - for (var i = this._offsets.length; i--;) { - var isActiveTarget = this._activeTarget != this._targets[i] - && scrollTop >= this._offsets[i] - && (!this._offsets[i + 1] || scrollTop < this._offsets[i + 1]) - - if (isActiveTarget) { - this._activate(this._targets[i]) - } - } -} - - -/** - * @param {Element} target - * @private - */ -ScrollSpy.prototype._activate = function (target) { - this._activeTarget = target - - this._clear() - - var selector = this._selector - + '[data-target="' + target + '"],' - + this._selector + '[href="' + target + '"]' - - // todo (fat): this seems horribly wrong… getting all raw li elements up the tree ,_, - var parentListItems = $(selector).parents(ScrollSpy._Selector.LI) - - for (var i = parentListItems.length; i--;) { - $(parentListItems[i]).addClass(ScrollSpy._ClassName.ACTIVE) - - var itemParent = parentListItems[i].parentNode - - if (itemParent && $(itemParent).hasClass(ScrollSpy._ClassName.DROPDOWN_MENU)) { - var closestDropdown = $(itemParent).closest(ScrollSpy._Selector.LI_DROPDOWN)[0] - $(closestDropdown).addClass(ScrollSpy._ClassName.ACTIVE) - } - } - - $(this._scrollElement).trigger(ScrollSpy._Event.ACTIVATE, { - relatedTarget: target - }) -} - - -/** - * @private - */ -ScrollSpy.prototype._clear = function () { - var activeParents = $(this._selector).parentsUntil(this._config.target, ScrollSpy._Selector.ACTIVE) - - for (var i = activeParents.length; i--;) { - $(activeParents[i]).removeClass(ScrollSpy._ClassName.ACTIVE) - } -} - - -/** - * ------------------------------------------------------------------------ - * jQuery Interface + noConflict implementaiton - * ------------------------------------------------------------------------ - */ - -/** - * @const - * @type {Function} - */ -$.fn[ScrollSpy._NAME] = ScrollSpy._jQueryInterface - - -/** - * @const - * @type {Function} - */ -$.fn[ScrollSpy._NAME]['Constructor'] = ScrollSpy - - -/** - * @const - * @type {Function} - */ -$.fn[ScrollSpy._NAME]['noConflict'] = function () { - $.fn[ScrollSpy._NAME] = ScrollSpy._JQUERY_NO_CONFLICT - return this -} - - -/** - * ------------------------------------------------------------------------ - * Data Api implementation - * ------------------------------------------------------------------------ - */ - -$(window).on('load.bs.scrollspy.data-api', function () { - var scrollSpys = /** @type {Array.<Element>} */ ($.makeArray($(ScrollSpy._Selector.DATA_SPY))) - - for (var i = scrollSpys.length; i--;) { - var $spy = $(scrollSpys[i]) - ScrollSpy._jQueryInterface.call($spy, /** @type {Object|null} */ ($spy.data())) - } -}) |