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Diffstat (limited to 'website/assets/js/bootstrap-scrollspy.js')
| -rw-r--r-- | website/assets/js/bootstrap-scrollspy.js | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/website/assets/js/bootstrap-scrollspy.js b/website/assets/js/bootstrap-scrollspy.js new file mode 100644 index 0000000..ea29f2f --- /dev/null +++ b/website/assets/js/bootstrap-scrollspy.js @@ -0,0 +1,125 @@ +/* ============================================================= + * bootstrap-scrollspy.js v2.0.2 + * http://twitter.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 process = $.proxy(this.process, this) + , $element = $(element).is('body') ? $(window) : $(element) + , href + this.options = $.extend({}, $.fn.scrollspy.defaults, options) + this.$scrollElement = $element.on('scroll.scroll.data-api', process) + this.selector = (this.options.target + || ((href = $(element).attr('href')) && href.replace(/.*(?=#[^\s]+$)/, '')) //strip for ie7 + || '') + ' .nav li > a' + this.$body = $('body').on('click.scroll.data-api', this.selector, process) + this.refresh() + this.process() + } + + ScrollSpy.prototype = { + + constructor: ScrollSpy + + , refresh: function () { + this.targets = this.$body + .find(this.selector) + .map(function () { + var href = $(this).attr('href') + return /^#\w/.test(href) && $(href).length ? href : null + }) + + this.offsets = $.map(this.targets, function (id) { + return $(id).position().top + }) + } + + , process: function () { + var scrollTop = this.$scrollElement.scrollTop() + this.options.offset + , offsets = this.offsets + , targets = this.targets + , activeTarget = this.activeTarget + , i + + for (i = offsets.length; i--;) { + activeTarget != targets[i] + && scrollTop >= offsets[i] + && (!offsets[i + 1] || scrollTop <= offsets[i + 1]) + && this.activate( targets[i] ) + } + } + + , activate: function (target) { + var active + + this.activeTarget = target + + this.$body + .find(this.selector).parent('.active') + .removeClass('active') + + active = this.$body + .find(this.selector + '[href="' + target + '"]') + .parent('li') + .addClass('active') + + if ( active.parent('.dropdown-menu') ) { + active.closest('li.dropdown').addClass('active') + } + } + + } + + + /* SCROLLSPY PLUGIN DEFINITION + * =========================== */ + + $.fn.scrollspy = function ( option ) { + return this.each(function () { + var $this = $(this) + , data = $this.data('scrollspy') + , options = typeof option == 'object' && option + if (!data) $this.data('scrollspy', (data = new ScrollSpy(this, options))) + if (typeof option == 'string') data[option]() + }) + } + + $.fn.scrollspy.Constructor = ScrollSpy + + $.fn.scrollspy.defaults = { + offset: 10 + } + + + /* SCROLLSPY DATA-API + * ================== */ + + $(function () { + $('[data-spy="scroll"]').each(function () { + var $spy = $(this) + $spy.scrollspy($spy.data()) + }) + }) + +}( window.jQuery );
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