diff --git a/bootstrap-3.0.0/js/scrollspy.js b/bootstrap-3.0.0/js/scrollspy.js new file mode 100644 index 0000000000000000000000000000000000000000..10f95f249a56a7c44a57466d01b130dee4a23190 --- /dev/null +++ b/bootstrap-3.0.0/js/scrollspy.js @@ -0,0 +1,158 @@ +/* ======================================================================== + * Bootstrap: scrollspy.js v3.0.0 + * http://twbs.github.com/bootstrap/javascript.html#scrollspy + * ======================================================================== + * Copyright 2012 Twitter, Inc. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * ======================================================================== */ + + ++function ($) { "use strict"; + + // SCROLLSPY CLASS DEFINITION + // ========================== + + function ScrollSpy(element, options) { + var href + var process = $.proxy(this.process, this) + + this.$element = $(element).is('body') ? $(window) : $(element) + this.$body = $('body') + this.$scrollElement = this.$element.on('scroll.bs.scroll-spy.data-api', process) + this.options = $.extend({}, ScrollSpy.DEFAULTS, options) + this.selector = (this.options.target + || ((href = $(element).attr('href')) && href.replace(/.*(?=#[^\s]+$)/, '')) //strip for ie7 + || '') + ' .nav li > a' + this.offsets = $([]) + this.targets = $([]) + this.activeTarget = null + + this.refresh() + this.process() + } + + ScrollSpy.DEFAULTS = { + offset: 10 + } + + ScrollSpy.prototype.refresh = function () { + var offsetMethod = this.$element[0] == window ? 'offset' : 'position' + + this.offsets = $([]) + this.targets = $([]) + + var self = this + var $targets = this.$body + .find(this.selector) + .map(function () { + var $el = $(this) + var href = $el.data('target') || $el.attr('href') + var $href = /^#\w/.test(href) && $(href) + + return ($href + && $href.length + && [[ $href[offsetMethod]().top + (!$.isWindow(self.$scrollElement.get(0)) && self.$scrollElement.scrollTop()), href ]]) || null + }) + .sort(function (a, b) { return a[0] - b[0] }) + .each(function () { + self.offsets.push(this[0]) + self.targets.push(this[1]) + }) + } + + ScrollSpy.prototype.process = function () { + var scrollTop = this.$scrollElement.scrollTop() + this.options.offset + var scrollHeight = this.$scrollElement[0].scrollHeight || this.$body[0].scrollHeight + var maxScroll = scrollHeight - this.$scrollElement.height() + var offsets = this.offsets + var targets = this.targets + var activeTarget = this.activeTarget + var i + + if (scrollTop >= maxScroll) { + return activeTarget != (i = targets.last()[0]) && this.activate(i) + } + + for (i = offsets.length; i--;) { + activeTarget != targets[i] + && scrollTop >= offsets[i] + && (!offsets[i + 1] || scrollTop <= offsets[i + 1]) + && this.activate( targets[i] ) + } + } + + ScrollSpy.prototype.activate = function (target) { + this.activeTarget = target + + $(this.selector) + .parents('.active') + .removeClass('active') + + var selector = this.selector + + '[data-target="' + target + '"],' + + this.selector + '[href="' + target + '"]' + + var active = $(selector) + .parents('li') + .addClass('active') + + if (active.parent('.dropdown-menu').length) { + active = active + .closest('li.dropdown') + .addClass('active') + } + + active.trigger('activate') + } + + + // SCROLLSPY PLUGIN DEFINITION + // =========================== + + var old = $.fn.scrollspy + + $.fn.scrollspy = function (option) { + return this.each(function () { + var $this = $(this) + var data = $this.data('bs.scrollspy') + var options = typeof option == 'object' && option + + if (!data) $this.data('bs.scrollspy', (data = new ScrollSpy(this, options))) + if (typeof option == 'string') data[option]() + }) + } + + $.fn.scrollspy.Constructor = ScrollSpy + + + // SCROLLSPY NO CONFLICT + // ===================== + + $.fn.scrollspy.noConflict = function () { + $.fn.scrollspy = old + return this + } + + + // SCROLLSPY DATA-API + // ================== + + $(window).on('load', function () { + $('[data-spy="scroll"]').each(function () { + var $spy = $(this) + $spy.scrollspy($spy.data()) + }) + }) + +}(window.jQuery);