tooltip.js 12KB

    /* ======================================================================== * Bootstrap: tooltip.js v3.1.1 * http://getbootstrap.com/javascript/#tooltip * Inspired by the original jQuery.tipsy by Jason Frame * ======================================================================== * Copyright 2011-2014 Twitter, Inc. * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE) * ======================================================================== */ +function ($) { 'use strict'; // TOOLTIP PUBLIC CLASS DEFINITION // =============================== var Tooltip = function (element, options) { this.type = this.options = this.enabled = this.timeout = this.hoverState = this.$element = null this.init('tooltip', element, options) } Tooltip.DEFAULTS = { 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 } Tooltip.prototype.init = function (type, element, options) { this.enabled = true this.type = type this.$element = $(element) this.options = this.getOptions(options) var triggers = this.options.trigger.split(' ') for (var i = triggers.length; i--;) { var trigger = triggers[i] if (trigger == 'click') { this.$element.on('click.' + this.type, this.options.selector, $.proxy(this.toggle, this)) } else if (trigger != 'manual') { var eventIn = trigger == 'hover' ? 'mouseenter' : 'focusin' var eventOut = trigger == 'hover' ? 'mouseleave' : 'focusout' this.$element.on(eventIn + '.' + this.type, this.options.selector, $.proxy(this.enter, this)) this.$element.on(eventOut + '.' + this.type, this.options.selector, $.proxy(this.leave, this)) } } 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) if (options.delay && typeof options.delay == 'number') { options.delay = { show: options.delay, hide: options.delay } } return options } Tooltip.prototype.getDelegateOptions = function () { var options = {} var defaults = this.getDefaults() this._options && $.each(this._options, function (key, value) { if (defaults[key] != value) options[key] = value }) return options } Tooltip.prototype.enter = function (obj) { var self = obj instanceof this.constructor ? obj : $(obj.currentTarget)[this.type](this.getDelegateOptions()).data('bs.' + this.type) clearTimeout(self.timeout) self.hoverState = 'in' if (!self.options.delay || !self.options.delay.show) return self.show() self.timeout = setTimeout(function () { if (self.hoverState == 'in') self.show() }, self.options.delay.show) } Tooltip.prototype.leave = function (obj) { var self = obj instanceof this.constructor ? obj : $(obj.currentTarget)[this.type](this.getDelegateOptions()).data('bs.' + this.type) clearTimeout(self.timeout) self.hoverState = 'out' if (!self.options.delay || !self.options.delay.hide) return self.hide() self.timeout = setTimeout(function () { if (self.hoverState == 'out') self.hide() }, self.options.delay.hide) } Tooltip.prototype.show = function () { var e = $.Event('show.bs.' + this.type) if (this.hasContent() && this.enabled) { this.$element.trigger(e) if (e.isDefaultPrevented()) return var that = this; var $tip = this.tip() this.setContent() if (this.options.animation) $tip.addClass('fade') var placement = typeof this.options.placement == 'function' ? this.options.placement.call(this, $tip[0], this.$element[0]) : this.options.placement var autoToken = /\s?auto?\s?/i var autoPlace = autoToken.test(placement) if (autoPlace) placement = placement.replace(autoToken, '') || 'top' $tip .detach() .css({ top: 0, left: 0, display: 'block' }) .addClass(placement) 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 $tip .removeClass(orgPlacement) .addClass(placement) } var calculatedOffset = this.getCalculatedOffset(placement, pos, actualWidth, actualHeight) this.applyPlacement(calculatedOffset, placement) this.hoverState = null var complete = function() { that.$element.trigger('shown.bs.' + that.type) } $.support.transition && this.$tip.hasClass('fade') ? $tip .one($.support.transition.end, complete) .emulateTransitionEnd(150) : complete() } } Tooltip.prototype.applyPlacement = function (offset, placement) { var replace var $tip = this.tip() var width = $tip[0].offsetWidth var height = $tip[0].offsetHeight // manually read margins because getBoundingClientRect includes difference var marginTop = parseInt($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 $.offset.setOffset($tip[0], $.extend({ using: function (props) { $tip.css({ top: Math.round(props.top), left: Math.round(props.left) }) } }, offset), 0) $tip.addClass('in') // check to see if placing tip in new offset caused the tip to resize itself var actualWidth = $tip[0].offsetWidth var actualHeight = $tip[0].offsetHeight if (placement == 'top' && actualHeight != height) { replace = true offset.top = offset.top + height - actualHeight } if (/bottom|top/.test(placement)) { var delta = 0 if (offset.left < 0) { delta = offset.left * -2 offset.left = 0 $tip.offset(offset) actualWidth = $tip[0].offsetWidth actualHeight = $tip[0].offsetHeight } this.replaceArrow(delta - width + actualWidth, actualWidth, 'left') } else { this.replaceArrow(actualHeight - height, actualHeight, 'top') } if (replace) $tip.offset(offset) } Tooltip.prototype.replaceArrow = function (delta, dimension, position) { this.arrow().css(position, delta ? (50 * (1 - delta / dimension) + '%') : '') } Tooltip.prototype.setContent = function () { var $tip = this.tip() var title = this.getTitle() $tip.find('.tooltip-inner')[this.options.html ? 'html' : 'text'](title) $tip.removeClass('fade in top bottom left right') } 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) } this.$element.trigger(e) if (e.isDefaultPrevented()) return $tip.removeClass('in') $.support.transition && this.$tip.hasClass('fade') ? $tip .one($.support.transition.end, complete) .emulateTransitionEnd(150) : complete() this.hoverState = null return this } Tooltip.prototype.fixTitle = function () { var $e = this.$element if ($e.attr('title') || typeof($e.attr('data-original-title')) != 'string') { $e.attr('data-original-title', $e.attr('title') || '').attr('title', '') } } Tooltip.prototype.hasContent = function () { return this.getTitle() } Tooltip.prototype.getPosition = function () { var el = this.$element[0] return $.extend({}, (typeof el.getBoundingClientRect == 'function') ? el.getBoundingClientRect() : { width: el.offsetWidth, height: el.offsetHeight }, this.$element.offset()) } Tooltip.prototype.getCalculatedOffset = function (placement, pos, actualWidth, actualHeight) { 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 } } Tooltip.prototype.getTitle = function () { var title var $e = this.$element var o = this.options title = $e.attr('data-original-title') || (typeof o.title == 'function' ? o.title.call($e[0]) : o.title) return title } Tooltip.prototype.tip = function () { return this.$tip = this.$tip || $(this.options.template) } Tooltip.prototype.arrow = function () { return this.$arrow = this.$arrow || this.tip().find('.tooltip-arrow') } Tooltip.prototype.validate = function () { if (!this.$element[0].parentNode) { this.hide() this.$element = null this.options = null } } Tooltip.prototype.enable = function () { this.enabled = true } Tooltip.prototype.disable = function () { this.enabled = false } Tooltip.prototype.toggleEnabled = function () { this.enabled = !this.enabled } Tooltip.prototype.toggle = function (e) { var self = e ? $(e.currentTarget)[this.type](this.getDelegateOptions()).data('bs.' + this.type) : this self.tip().hasClass('in') ? self.leave(self) : self.enter(self) } Tooltip.prototype.destroy = function () { clearTimeout(this.timeout) this.hide().$element.off('.' + this.type).removeData('bs.' + this.type) } // TOOLTIP PLUGIN DEFINITION // ========================= var old = $.fn.tooltip $.fn.tooltip = function (option) { return this.each(function () { var $this = $(this) var data = $this.data('bs.tooltip') var options = typeof option == 'object' && option if (!data && option == 'destroy') return if (!data) $this.data('bs.tooltip', (data = new Tooltip(this, options))) if (typeof option == 'string') data[option]() }) } $.fn.tooltip.Constructor = Tooltip // TOOLTIP NO CONFLICT // =================== $.fn.tooltip.noConflict = function () { $.fn.tooltip = old return this } }(jQuery);