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https://www.archives.gov/sites/all/themes/nara/assets/javascripts/bootstrap/tooltip.js?tluiwm

js archives.gov collected 2026-09-25 06:07:48 UTC 14,642 bytes, 457 lines download raw bytes

vendor: 4,560 bytes, lines 1-156
1/* ========================================================================
2 * Bootstrap: tooltip.js v3.2.0
3 * http://getbootstrap.com/javascript/#tooltip
4 * Inspired by the original jQuery.tipsy by Jason Frame
5 * ========================================================================
6 * Copyright 2011-2014 Twitter, Inc.
7 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
8 * ======================================================================== */
9
10
11+function ($) {
12  'use strict';
13
14  // TOOLTIP PUBLIC CLASS DEFINITION
15  // ===============================
16
17  var Tooltip = function (element, options) {
18    this.type       =
19    this.options    =
20    this.enabled    =
21    this.timeout    =
22    this.hoverState =
23    this.$element   = null
24
25    this.init('tooltip', element, options)
26  }
27
28  Tooltip.VERSION  = '3.2.0'
29
30  Tooltip.DEFAULTS = {
31    animation: true,
32    placement: 'top',
33    selector: false,
34    template: '<div class="tooltip" role="tooltip"><div class="tooltip-arrow"></div><div class="tooltip-inner"></div></div>',
35    trigger: 'hover focus',
36    title: '',
37    delay: 0,
38    html: false,
39    container: false,
40    viewport: {
41      selector: 'body',
42      padding: 0
43    }
44  }
45
46  Tooltip.prototype.init = function (type, element, options) {
47    this.enabled   = true
48    this.type      = type
49    this.$element  = $(element)
50    this.options   = this.getOptions(options)
51    this.$viewport = this.options.viewport && $(this.options.viewport.selector || this.options.viewport)
52
53    var triggers = this.options.trigger.split(' ')
54
55    for (var i = triggers.length; i--;) {
56      var trigger = triggers[i]
57
58      if (trigger == 'click') {
59        this.$element.on('click.' + this.type, this.options.selector, $.proxy(this.toggle, this))
60      } else if (trigger != 'manual') {
61        var eventIn  = trigger == 'hover' ? 'mouseenter' : 'focusin'
62        var eventOut = trigger == 'hover' ? 'mouseleave' : 'focusout'
63
64        this.$element.on(eventIn  + '.' + this.type, this.options.selector, $.proxy(this.enter, this))
65        this.$element.on(eventOut + '.' + this.type, this.options.selector, $.proxy(this.leave, this))
66      }
67    }
68
69    this.options.selector ?
70      (this._options = $.extend({}, this.options, { trigger: 'manual', selector: '' })) :
71      this.fixTitle()
72  }
73
74  Tooltip.prototype.getDefaults = function () {
75    return Tooltip.DEFAULTS
76  }
77
78  Tooltip.prototype.getOptions = function (options) {
79    options = $.extend({}, this.getDefaults(), this.$element.data(), options)
80
81    if (options.delay && typeof options.delay == 'number') {
82      options.delay = {
83        show: options.delay,
84        hide: options.delay
85      }
86    }
87
88    return options
89  }
90
91  Tooltip.prototype.getDelegateOptions = function () {
92    var options  = {}
93    var defaults = this.getDefaults()
94
95    this._options && $.each(this._options, function (key, value) {
96      if (defaults[key] != value) options[key] = value
97    })
98
99    return options
100  }
101
102  Tooltip.prototype.enter = function (obj) {
103    var self = obj instanceof this.constructor ?
104      obj : $(obj.currentTarget).data('bs.' + this.type)
105
106    if (!self) {
107      self = new this.constructor(obj.currentTarget, this.getDelegateOptions())
108      $(obj.currentTarget).data('bs.' + this.type, self)
109    }
110
111    clearTimeout(self.timeout)
112
113    self.hoverState = 'in'
114
115    if (!self.options.delay || !self.options.delay.show) return self.show()
116
117    self.timeout = setTimeout(function () {
118      if (self.hoverState == 'in') self.show()
119    }, self.options.delay.show)
120  }
121
122  Tooltip.prototype.leave = function (obj) {
123    var self = obj instanceof this.constructor ?
124      obj : $(obj.currentTarget).data('bs.' + this.type)
125
126    if (!self) {
127      self = new this.constructor(obj.currentTarget, this.getDelegateOptions())
128      $(obj.currentTarget).data('bs.' + this.type, self)
129    }
130
131    clearTimeout(self.timeout)
132
133    self.hoverState = 'out'
134
135    if (!self.options.delay || !self.options.delay.hide) return self.hide()
136
137    self.timeout = setTimeout(function () {
138      if (self.hoverState == 'out') self.hide()
139    }, self.options.delay.hide)
140  }
141
142  Tooltip.prototype.show = function () {
143    var e = $.Event('show.bs.' + this.type)
144
145    if (this.hasContent() && this.enabled) {
146      this.$element.trigger(e)
147
148      var inDom = $.contains(document.documentElement, this.$element[0])
149      if (e.isDefaultPrevented() || !inDom) return
150      var that = this
151
152      var $tip = this.tip()
153
154      var tipId = this.getUID(this.type)
155
156      this.setContent()
157      $tip.attr('id', tipId)
158      this.$element.attr('aria-describedby', tipId)
159
160      if (this.options.animation) $tip.addClass('fade')
161
162      var placement = typeof this.options.placement == 'function' ?
163        this.options.placement.call(this, $tip[0], this.$element[0]) :
164        this.options.placement
165
166      var autoToken = /\s?auto?\s?/i
167      var autoPlace = autoToken.test(placement)
168      if (autoPlace) placement = placement.replace(autoToken, '') || 'top'
169
170      $tip
171        .detach()
172        .css({ top: 0, left: 0, display: 'block' })
173        .addClass(placement)
174        .data('bs.' + this.type, this)
175
176      this.options.container ? $tip.appendTo(this.options.container) : $tip.insertAfter(this.$element)
177
178      var pos          = this.getPosition()
179      var actualWidth  = $tip[0].offsetWidth
180      var actualHeight = $tip[0].offsetHeight
181
182      if (autoPlace) {
183        var orgPlacement = placement
184        var $parent      = this.$element.parent()
185        var parentDim    = this.getPosition($parent)
186
187        placement = placement == 'bottom' && pos.top   + pos.height       + actualHeight - parentDim.scroll > parentDim.height ? 'top'    :
188                    placement == 'top'    && pos.top   - parentDim.scroll - actualHeight < 0                                   ? 'bottom' :
189                    placement == 'right'  && pos.right + actualWidth      > parentDim.width                                    ? 'left'   :
190                    placement == 'left'   && pos.left  - actualWidth      < parentDim.left                                     ? 'right'  :
191                    placement
192
193        $tip
194          .removeClass(orgPlacement)
195          .addClass(placement)
196      }
197
198      var calculatedOffset = this.getCalculatedOffset(placement, pos, actualWidth, actualHeight)
199
200      this.applyPlacement(calculatedOffset, placement)
201
202      var complete = function () {
203        that.$element.trigger('shown.bs.' + that.type)
204        that.hoverState = null
205      }
206
207      $.support.transition && this.$tip.hasClass('fade') ?
208        $tip
209          .one('bsTransitionEnd', complete)
210          .emulateTransitionEnd(150) :
211        complete()
212    }
213  }
214
215  Tooltip.prototype.applyPlacement = function (offset, placement) {
216    var $tip   = this.tip()
217    var width  = $tip[0].offsetWidth
218    var height = $tip[0].offsetHeight
219
220    // manually read margins because getBoundingClientRect includes difference
221    var marginTop = parseInt($tip.css('margin-top'), 10)
222    var marginLeft = parseInt($tip.css('margin-left'), 10)
223
224    // we must check for NaN for ie 8/9
225    if (isNaN(marginTop))  marginTop  = 0
226    if (isNaN(marginLeft)) marginLeft = 0
227
228    offset.top  = offset.top  + marginTop
229    offset.left = offset.left + marginLeft
230
231    // $.fn.offset doesn't round pixel values
232    // so we use setOffset directly with our own function B-0
233    $.offset.setOffset($tip[0], $.extend({
234      using: function (props) {
235        $tip.css({
236          top: Math.round(props.top),
237          left: Math.round(props.left)
238        })
239      }
240    }, offset), 0)
241
242    $tip.addClass('in')
243
244    // check to see if placing tip in new offset caused the tip to resize itself
245    var actualWidth  = $tip[0].offsetWidth
246    var actualHeight = $tip[0].offsetHeight
247
248    if (placement == 'top' && actualHeight != height) {
249      offset.top = offset.top + height - actualHeight
250    }
251
252    var delta = this.getViewportAdjustedDelta(placement, offset, actualWidth, actualHeight)
253
254    if (delta.left) offset.left += delta.left
255    else offset.top += delta.top
256
257    var arrowDelta          = delta.left ? delta.left * 2 - width + actualWidth : delta.top * 2 - height + actualHeight
258    var arrowPosition       = delta.left ? 'left'        : 'top'
259    var arrowOffsetPosition = delta.left ? 'offsetWidth' : 'offsetHeight'
260
261    $tip.offset(offset)
262    this.replaceArrow(arrowDelta, $tip[0][arrowOffsetPosition], arrowPosition)
263  }
264
265  Tooltip.prototype.replaceArrow = function (delta, dimension, position) {
266    this.arrow().css(position, delta ? (50 * (1 - delta / dimension) + '%') : '')
267  }
268
269  Tooltip.prototype.setContent = function () {
270    var $tip  = this.tip()
271    var title = this.getTitle()
272
273    $tip.find('.tooltip-inner')[this.options.html ? 'html' : 'text'](title)
274    $tip.removeClass('fade in top bottom left right')
275  }
276
277  Tooltip.prototype.hide = function () {
278    var that = this
279    var $tip = this.tip()
280    var e    = $.Event('hide.bs.' + this.type)
281
282    this.$element.removeAttr('aria-describedby')
283
284    function complete() {
285      if (that.hoverState != 'in') $tip.detach()
286      that.$element.trigger('hidden.bs.' + that.type)
287    }
288
289    this.$element.trigger(e)
290
291    if (e.isDefaultPrevented()) return
292
293    $tip.removeClass('in')
294
295    $.support.transition && this.$tip.hasClass('fade') ?
296      $tip
297        .one('bsTransitionEnd', complete)
298        .emulateTransitionEnd(150) :
299      complete()
300
301    this.hoverState = null
302
303    return this
304  }
305
306  Tooltip.prototype.fixTitle = function () {
307    var $e = this.$element
308    if ($e.attr('title') || typeof ($e.attr('data-original-title')) != 'string') {
309      $e.attr('data-original-title', $e.attr('title') || '').attr('title', '')
310    }
311  }
312
313  Tooltip.prototype.hasContent = function () {
314    return this.getTitle()
315  }
316
317  Tooltip.prototype.getPosition = function ($element) {
318    $element   = $element || this.$element
319    var el     = $element[0]
320    var isBody = el.tagName == 'BODY'
321    return $.extend({}, (typeof el.getBoundingClientRect == 'function') ? el.getBoundingClientRect() : null, {
322      scroll: isBody ? document.documentElement.scrollTop || document.body.scrollTop : $element.scrollTop(),
323      width:  isBody ? $(window).width()  : $element.outerWidth(),
324      height: isBody ? $(window).height() : $element.outerHeight()
325    }, isBody ? { top: 0, left: 0 } : $element.offset())
326  }
327
328  Tooltip.prototype.getCalculatedOffset = function (placement, pos, actualWidth, actualHeight) {
329    return placement == 'bottom' ? { top: pos.top + pos.height,   left: pos.left + pos.width / 2 - actualWidth / 2  } :
330           placement == 'top'    ? { top: pos.top - actualHeight, left: pos.left + pos.width / 2 - actualWidth / 2  } :
331           placement == 'left'   ? { top: pos.top + pos.height / 2 - actualHeight / 2, left: pos.left - actualWidth } :
332        /* placement == 'right' */ { top: pos.top + pos.height / 2 - actualHeight / 2, left: pos.left + pos.width   }
333
334  }
335
336  Tooltip.prototype.getViewportAdjustedDelta = function (placement, pos, actualWidth, actualHeight) {
337    var delta = { top: 0, left: 0 }
338    if (!this.$viewport) return delta
339
340    var viewportPadding = this.options.viewport && this.options.viewport.padding || 0
341    var viewportDimensions = this.getPosition(this.$viewport)
342
343    if (/right|left/.test(placement)) {
344      var topEdgeOffset    = pos.top - viewportPadding - viewportDimensions.scroll
345      var bottomEdgeOffset = pos.top + viewportPadding - viewportDimensions.scroll + actualHeight
346      if (topEdgeOffset < viewportDimensions.top) { // top overflow
347        delta.top = viewportDimensions.top - topEdgeOffset
348      } else if (bottomEdgeOffset > viewportDimensions.top + viewportDimensions.height) { // bottom overflow
349        delta.top = viewportDimensions.top + viewportDimensions.height - bottom
349EdgeOffset
350      }
351    } else {
352      var leftEdgeOffset  = pos.left - viewportPadding
353      var rightEdgeOffset = pos.left + viewportPadding + actualWidth
354      if (leftEdgeOffset < viewportDimensions.left) { // left overflow
355        delta.left = viewportDimensions.left - leftEdgeOffset
356      } else if (rightEdgeOffset > viewportDimensions.width) { // right overflow
357        delta.left = viewportDimensions.left + viewportDimensions.width - rightEdgeOffset
358      }
359    }
360
361    return delta
362  }
363
364  Tooltip.prototype.getTitle = function () {
365    var title
366    var $e = this.$element
367    var o  = this.options
368
369    title = $e.attr('data-original-title')
370      || (typeof o.title == 'function' ? o.title.call($e[0]) :  o.title)
371
372    return title
373  }
374
375  Tooltip.prototype.getUID = function (prefix) {
376    do prefix += ~~(Math.random() * 1000000)
377    while (document.getElementById(prefix))
378    return prefix
379  }
380
381  Tooltip.prototype.tip = function () {
382    return (this.$tip = this.$tip || $(this.options.template))
383  }
384
385  Tooltip.prototype.arrow = function () {
386    return (this.$arrow = this.$arrow || this.tip().find('.tooltip-arrow'))
387  }
388
389  Tooltip.prototype.validate = function () {
390    if (!this.$element[0].parentNode) {
391      this.hide()
392      this.$element = null
393      this.options  = null
394    }
395  }
396
397  Tooltip.prototype.enable = function () {
398    this.enabled = true
399  }
400
401  Tooltip.prototype.disable = function () {
402    this.enabled = false
403  }
404
405  Tooltip.prototype.toggleEnabled = function () {
406    this.enabled = !this.enabled
407  }
408
409  Tooltip.prototype.toggle = function (e) {
410    var self = this
411    if (e) {
412      self = $(e.currentTarget).data('bs.' + this.type)
413      if (!self) {
414        self = new this.constructor(e.currentTarget, this.getDelegateOptions())
415        $(e.currentTarget).data('bs.' + this.type, self)
416      }
417    }
418
419    self.tip().hasClass('in') ? self.leave(self) : self.enter(self)
420  }
421
422  Tooltip.prototype.destroy = function () {
423    clearTimeout(this.timeout)
424    this.hide().$element.off('.' + this.type).removeData('bs.' + this.type)
425  }
426
427
428  // TOOLTIP PLUGIN DEFINITION
429  // =========================
430
431  function Plugin(option) {
432    return this.each(function () {
433      var $this   = $(this)
434      var data    = $this.data('bs.tooltip')
435      var options = typeof option == 'object' && option
436
437      if (!data && option == 'destroy') return
438      if (!data) $this.data('bs.tooltip', (data = new Tooltip(this, options)))
439      if (typeof option == 'string') data[option]()
440    })
441  }
442
443  var old = $.fn.tooltip
444
445  $.fn.tooltip             = Plugin
446  $.fn.tooltip.Constructor = Tooltip
447
448
449  // TOOLTIP NO CONFLICT
450  // ===================
451
452  $.fn.tooltip.noConflict = function () {
453    $.fn.tooltip = old
454    return this
455  }
456
457}(jQuery);

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