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Bootstrap/js/tooltip.js

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2013-05-22 04:30:33 +02:00
/* ========================================================================
* Bootstrap: tooltip.js v3.0.3
* http://getbootstrap.com/javascript/#tooltip
* Inspired by the original jQuery.tipsy by Jason Frame
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* ========================================================================
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* Copyright 2013 Twitter, Inc.
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
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* ======================================================================== */
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+function ($) { 'use strict';
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// TOOLTIP PUBLIC CLASS DEFINITION
// ===============================
var Tooltip = function (element, options) {
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this.type =
this.options =
this.enabled =
this.timeout =
this.hoverState =
this.$element = null
this.init('tooltip', element, options)
}
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Tooltip.DEFAULTS = {
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animation: true,
placement: 'top',
selector: false,
template: '<div class="tooltip"><div class="tooltip-arrow"></div><div class="tooltip-inner"></div></div>',
trigger: 'hover focus',
title: '',
delay: 0,
html: false,
container: false
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}
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Tooltip.prototype.init = function (type, element, options) {
this.enabled = true
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this.type = type
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this.$element = $(element)
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this.options = this.getOptions(options)
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var triggers = this.options.trigger.split(' ')
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for (var i = triggers.length; i--;) {
var trigger = triggers[i]
if (trigger == 'click') {
this.$element.on('click.' + this.type, this.options.selector, $.proxy(this.toggle, this))
} else if (trigger != 'manual') {
var eventIn = trigger == 'hover' ? 'mouseenter' : 'focusin'
var eventOut = trigger == 'hover' ? 'mouseleave' : 'focusout'
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this.$element.on(eventIn + '.' + this.type, this.options.selector, $.proxy(this.enter, this))
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this.$element.on(eventOut + '.' + this.type, this.options.selector, $.proxy(this.leave, this))
}
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}
this.options.selector ?
(this._options = $.extend({}, this.options, { trigger: 'manual', selector: '' })) :
this.fixTitle()
}
Tooltip.prototype.getDefaults = function () {
return Tooltip.DEFAULTS
}
Tooltip.prototype.getOptions = function (options) {
options = $.extend({}, this.getDefaults(), this.$element.data(), options)
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if (options.delay && typeof options.delay == 'number') {
options.delay = {
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show: options.delay,
hide: options.delay
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}
}
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return options
}
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Tooltip.prototype.getDelegateOptions = function () {
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var options = {}
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var defaults = this.getDefaults()
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this._options && $.each(this._options, function (key, value) {
if (defaults[key] != value) options[key] = value
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})
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return options
}
Tooltip.prototype.enter = function (obj) {
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var self = obj instanceof this.constructor ?
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obj : $(obj.currentTarget)[this.type](this.getDelegateOptions()).data('bs.' + this.type)
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clearTimeout(self.timeout)
self.hoverState = 'in'
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if (!self.options.delay || !self.options.delay.show) return self.show()
self.timeout = setTimeout(function () {
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if (self.hoverState == 'in') self.show()
}, self.options.delay.show)
}
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Tooltip.prototype.leave = function (obj) {
var self = obj instanceof this.constructor ?
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obj : $(obj.currentTarget)[this.type](this.getDelegateOptions()).data('bs.' + this.type)
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clearTimeout(self.timeout)
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self.hoverState = 'out'
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if (!self.options.delay || !self.options.delay.hide) return self.hide()
self.timeout = setTimeout(function () {
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if (self.hoverState == 'out') self.hide()
}, self.options.delay.hide)
}
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Tooltip.prototype.show = function () {
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var e = $.Event('show.bs.' + this.type)
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if (this.hasContent() && this.enabled) {
this.$element.trigger(e)
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if (e.isDefaultPrevented()) return
var that = this;
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var $tip = this.tip()
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this.setContent()
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if (this.options.animation) $tip.addClass('fade')
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var placement = typeof this.options.placement == 'function' ?
this.options.placement.call(this, $tip[0], this.$element[0]) :
this.options.placement
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var autoToken = /\s?auto?\s?/i
var autoPlace = autoToken.test(placement)
if (autoPlace) placement = placement.replace(autoToken, '') || 'top'
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$tip
.detach()
.css({ top: 0, left: 0, display: 'block' })
.addClass(placement)
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this.options.container ? $tip.appendTo(this.options.container) : $tip.insertAfter(this.$element)
var pos = this.getPosition()
var actualWidth = $tip[0].offsetWidth
var actualHeight = $tip[0].offsetHeight
if (autoPlace) {
var $parent = this.$element.parent()
var orgPlacement = placement
var docScroll = document.documentElement.scrollTop || document.body.scrollTop
var parentWidth = this.options.container == 'body' ? window.innerWidth : $parent.outerWidth()
var parentHeight = this.options.container == 'body' ? window.innerHeight : $parent.outerHeight()
var parentLeft = this.options.container == 'body' ? 0 : $parent.offset().left
placement = placement == 'bottom' && pos.top + pos.height + actualHeight - docScroll > parentHeight ? 'top' :
placement == 'top' && pos.top - docScroll - actualHeight < 0 ? 'bottom' :
placement == 'right' && pos.right + actualWidth > parentWidth ? 'left' :
placement == 'left' && pos.left - actualWidth < parentLeft ? 'right' :
placement
$tip
.removeClass(orgPlacement)
.addClass(placement)
}
var calculatedOffset = this.getCalculatedOffset(placement, pos, actualWidth, actualHeight)
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this.applyPlacement(calculatedOffset, placement)
this.hoverState = null
var complete = function() {
that.$element.trigger('shown.bs.' + that.type)
}
$.support.transition && this.$tip.hasClass('fade') ?
$tip
.one($.support.transition.end, complete)
.emulateTransitionEnd(150) :
complete()
}
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}
Tooltip.prototype.applyPlacement = function (offset, placement) {
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var replace
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var $tip = this.tip()
var width = $tip[0].offsetWidth
var height = $tip[0].offsetHeight
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// manually read margins because getBoundingClientRect includes difference
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var marginTop = parseInt($tip.css('margin-top'), 10)
var marginLeft = parseInt($tip.css('margin-left'), 10)
// we must check for NaN for ie 8/9
if (isNaN(marginTop)) marginTop = 0
if (isNaN(marginLeft)) marginLeft = 0
offset.top = offset.top + marginTop
offset.left = offset.left + marginLeft
// $.fn.offset doesn't round pixel values
// so we use setOffset directly with our own function B-0
jQuery.offset.setOffset($tip[0], $.extend({
using: function (props) {
$tip.css({
top: Math.round(props.top),
left: Math.round(props.left)
})
}
}, offset), 0)
$tip.addClass('in')
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// check to see if placing tip in new offset caused the tip to resize itself
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var actualWidth = $tip[0].offsetWidth
var actualHeight = $tip[0].offsetHeight
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if (placement == 'top' && actualHeight != height) {
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replace = true
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offset.top = offset.top + height - actualHeight
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}
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if (/bottom|top/.test(placement)) {
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var delta = 0
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if (offset.left < 0) {
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delta = offset.left * -2
offset.left = 0
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$tip.offset(offset)
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actualWidth = $tip[0].offsetWidth
actualHeight = $tip[0].offsetHeight
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}
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this.replaceArrow(delta - width + actualWidth, actualWidth, 'left')
} else {
this.replaceArrow(actualHeight - height, actualHeight, 'top')
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}
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if (replace) $tip.offset(offset)
}
Tooltip.prototype.replaceArrow = function (delta, dimension, position) {
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this.arrow().css(position, delta ? (50 * (1 - delta / dimension) + '%') : '')
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}
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Tooltip.prototype.setContent = function () {
var $tip = this.tip()
var title = this.getTitle()
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$tip.find('.tooltip-inner')[this.options.html ? 'html' : 'text'](title)
$tip.removeClass('fade in top bottom left right')
}
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Tooltip.prototype.hide = function () {
var that = this
var $tip = this.tip()
var e = $.Event('hide.bs.' + this.type)
function complete() {
if (that.hoverState != 'in') $tip.detach()
that.$element.trigger('hidden.bs.' + that.type)
}
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this.$element.trigger(e)
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if (e.isDefaultPrevented()) return
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$tip.removeClass('in')
$.support.transition && this.$tip.hasClass('fade') ?
$tip
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.one($.support.transition.end, complete)
.emulateTransitionEnd(150) :
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complete()
this.hoverState = null
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return this
}
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Tooltip.prototype.fixTitle = function () {
var $e = this.$element
if ($e.attr('title') || typeof($e.attr('data-original-title')) != 'string') {
$e.attr('data-original-title', $e.attr('title') || '').attr('title', '')
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}
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}
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Tooltip.prototype.hasContent = function () {
return this.getTitle()
}
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Tooltip.prototype.getPosition = function () {
var el = this.$element[0]
return $.extend({}, (typeof el.getBoundingClientRect == 'function') ? el.getBoundingClientRect() : {
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width: el.offsetWidth,
height: el.offsetHeight
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}, this.$element.offset())
}
Tooltip.prototype.getCalculatedOffset = function (placement, pos, actualWidth, actualHeight) {
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return placement == 'bottom' ? { top: pos.top + pos.height, left: pos.left + pos.width / 2 - actualWidth / 2 } :
placement == 'top' ? { top: pos.top - actualHeight, left: pos.left + pos.width / 2 - actualWidth / 2 } :
placement == 'left' ? { top: pos.top + pos.height / 2 - actualHeight / 2, left: pos.left - actualWidth } :
/* placement == 'right' */ { top: pos.top + pos.height / 2 - actualHeight / 2, left: pos.left + pos.width }
}
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Tooltip.prototype.getTitle = function () {
var title
var $e = this.$element
var o = this.options
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title = $e.attr('data-original-title')
|| (typeof o.title == 'function' ? o.title.call($e[0]) : o.title)
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return title
}
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Tooltip.prototype.tip = function () {
return this.$tip = this.$tip || $(this.options.template)
}
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Tooltip.prototype.arrow = function () {
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return this.$arrow = this.$arrow || this.tip().find('.tooltip-arrow')
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}
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Tooltip.prototype.validate = function () {
if (!this.$element[0].parentNode) {
this.hide()
this.$element = null
this.options = null
}
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}
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Tooltip.prototype.enable = function () {
this.enabled = true
}
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Tooltip.prototype.disable = function () {
this.enabled = false
}
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Tooltip.prototype.toggleEnabled = function () {
this.enabled = !this.enabled
}
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Tooltip.prototype.toggle = function (e) {
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var self = e ? $(e.currentTarget)[this.type](this.getDelegateOptions()).data('bs.' + this.type) : this
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self.tip().hasClass('in') ? self.leave(self) : self.enter(self)
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}
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Tooltip.prototype.destroy = function () {
this.hide().$element.off('.' + this.type).removeData('bs.' + this.type)
}
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// TOOLTIP PLUGIN DEFINITION
// =========================
var old = $.fn.tooltip
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$.fn.tooltip = function (option) {
return this.each(function () {
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var $this = $(this)
var data = $this.data('bs.tooltip')
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var options = typeof option == 'object' && option
if (!data) $this.data('bs.tooltip', (data = new Tooltip(this, options)))
if (typeof option == 'string') data[option]()
})
}
$.fn.tooltip.Constructor = Tooltip
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// TOOLTIP NO CONFLICT
// ===================
$.fn.tooltip.noConflict = function () {
$.fn.tooltip = old
return this
}
}(jQuery);