summaryrefslogtreecommitdiff
path: root/www/wiki/extensions/Bootstrap/resources/bootstrap/js/affix.js
diff options
context:
space:
mode:
Diffstat (limited to 'www/wiki/extensions/Bootstrap/resources/bootstrap/js/affix.js')
-rw-r--r--www/wiki/extensions/Bootstrap/resources/bootstrap/js/affix.js162
1 files changed, 162 insertions, 0 deletions
diff --git a/www/wiki/extensions/Bootstrap/resources/bootstrap/js/affix.js b/www/wiki/extensions/Bootstrap/resources/bootstrap/js/affix.js
new file mode 100644
index 00000000..7f651681
--- /dev/null
+++ b/www/wiki/extensions/Bootstrap/resources/bootstrap/js/affix.js
@@ -0,0 +1,162 @@
+/* ========================================================================
+ * Bootstrap: affix.js v3.3.7
+ * http://getbootstrap.com/javascript/#affix
+ * ========================================================================
+ * Copyright 2011-2016 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * ======================================================================== */
+
+
++function ($) {
+ 'use strict';
+
+ // AFFIX CLASS DEFINITION
+ // ======================
+
+ var Affix = function (element, options) {
+ this.options = $.extend({}, Affix.DEFAULTS, options)
+
+ this.$target = $(this.options.target)
+ .on('scroll.bs.affix.data-api', $.proxy(this.checkPosition, this))
+ .on('click.bs.affix.data-api', $.proxy(this.checkPositionWithEventLoop, this))
+
+ this.$element = $(element)
+ this.affixed = null
+ this.unpin = null
+ this.pinnedOffset = null
+
+ this.checkPosition()
+ }
+
+ Affix.VERSION = '3.3.7'
+
+ Affix.RESET = 'affix affix-top affix-bottom'
+
+ Affix.DEFAULTS = {
+ offset: 0,
+ target: window
+ }
+
+ Affix.prototype.getState = function (scrollHeight, height, offsetTop, offsetBottom) {
+ var scrollTop = this.$target.scrollTop()
+ var position = this.$element.offset()
+ var targetHeight = this.$target.height()
+
+ if (offsetTop != null && this.affixed == 'top') return scrollTop < offsetTop ? 'top' : false
+
+ if (this.affixed == 'bottom') {
+ if (offsetTop != null) return (scrollTop + this.unpin <= position.top) ? false : 'bottom'
+ return (scrollTop + targetHeight <= scrollHeight - offsetBottom) ? false : 'bottom'
+ }
+
+ var initializing = this.affixed == null
+ var colliderTop = initializing ? scrollTop : position.top
+ var colliderHeight = initializing ? targetHeight : height
+
+ if (offsetTop != null && scrollTop <= offsetTop) return 'top'
+ if (offsetBottom != null && (colliderTop + colliderHeight >= scrollHeight - offsetBottom)) return 'bottom'
+
+ return false
+ }
+
+ Affix.prototype.getPinnedOffset = function () {
+ if (this.pinnedOffset) return this.pinnedOffset
+ this.$element.removeClass(Affix.RESET).addClass('affix')
+ var scrollTop = this.$target.scrollTop()
+ var position = this.$element.offset()
+ return (this.pinnedOffset = position.top - scrollTop)
+ }
+
+ Affix.prototype.checkPositionWithEventLoop = function () {
+ setTimeout($.proxy(this.checkPosition, this), 1)
+ }
+
+ Affix.prototype.checkPosition = function () {
+ if (!this.$element.is(':visible')) return
+
+ var height = this.$element.height()
+ var offset = this.options.offset
+ var offsetTop = offset.top
+ var offsetBottom = offset.bottom
+ var scrollHeight = Math.max($(document).height(), $(document.body).height())
+
+ if (typeof offset != 'object') offsetBottom = offsetTop = offset
+ if (typeof offsetTop == 'function') offsetTop = offset.top(this.$element)
+ if (typeof offsetBottom == 'function') offsetBottom = offset.bottom(this.$element)
+
+ var affix = this.getState(scrollHeight, height, offsetTop, offsetBottom)
+
+ if (this.affixed != affix) {
+ if (this.unpin != null) this.$element.css('top', '')
+
+ var affixType = 'affix' + (affix ? '-' + affix : '')
+ var e = $.Event(affixType + '.bs.affix')
+
+ this.$element.trigger(e)
+
+ if (e.isDefaultPrevented()) return
+
+ this.affixed = affix
+ this.unpin = affix == 'bottom' ? this.getPinnedOffset() : null
+
+ this.$element
+ .removeClass(Affix.RESET)
+ .addClass(affixType)
+ .trigger(affixType.replace('affix', 'affixed') + '.bs.affix')
+ }
+
+ if (affix == 'bottom') {
+ this.$element.offset({
+ top: scrollHeight - height - offsetBottom
+ })
+ }
+ }
+
+
+ // AFFIX PLUGIN DEFINITION
+ // =======================
+
+ function Plugin(option) {
+ return this.each(function () {
+ var $this = $(this)
+ var data = $this.data('bs.affix')
+ var options = typeof option == 'object' && option
+
+ if (!data) $this.data('bs.affix', (data = new Affix(this, options)))
+ if (typeof option == 'string') data[option]()
+ })
+ }
+
+ var old = $.fn.affix
+
+ $.fn.affix = Plugin
+ $.fn.affix.Constructor = Affix
+
+
+ // AFFIX NO CONFLICT
+ // =================
+
+ $.fn.affix.noConflict = function () {
+ $.fn.affix = old
+ return this
+ }
+
+
+ // AFFIX DATA-API
+ // ==============
+
+ $(window).on('load', function () {
+ $('[data-spy="affix"]').each(function () {
+ var $spy = $(this)
+ var data = $spy.data()
+
+ data.offset = data.offset || {}
+
+ if (data.offsetBottom != null) data.offset.bottom = data.offsetBottom
+ if (data.offsetTop != null) data.offset.top = data.offsetTop
+
+ Plugin.call($spy, data)
+ })
+ })
+
+}(jQuery);