bootstrap-twipsy.js

/* ==========================================================
 * bootstrap-twipsy.js v2.0.0
 * http://twitter.github.com/bootstrap/javascript.html#twipsy
 * Adapted from the original jQuery.tipsy by Jason Frame
 * ==========================================================
 * Copyright 2011 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"

 /* TWIPSY PUBLIC CLASS DEFINITION
  * ============================== */

  var Twipsy = function ( element, options ) {
    this.$element = $(element)
    this.options = options
    this.enabled = true
    this.fixTitle()
  }

  Twipsy.prototype = {

    show: function() {
      var pos
        , actualWidth
        , actualHeight
        , placement
        , $tip
        , tp

      if (this.hasContent() && this.enabled) {
        $tip = this.tip()
        this.setContent()

        if (this.options.animate) {
          $tip.addClass('fade')
        }

        $tip
          .remove()
          .css({ top: 0, left: 0, display: 'block' })
          .prependTo(document.body)

        pos = $.extend({}, this.$element.offset(), {
          width: this.$element[0].offsetWidth
        , height: this.$element[0].offsetHeight
        })

        actualWidth = $tip[0].offsetWidth
        actualHeight = $tip[0].offsetHeight

        placement = maybeCall(this.options.placement, this, [ $tip[0], this.$element[0] ])

        switch (placement) {
          case 'below':
            tp = {top: pos.top + pos.height + this.options.offset, left: pos.left + pos.width / 2 - actualWidth / 2}