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/**
* tooltipster http://calebjacob.github.io/tooltipster/
* A rockin' custom tooltip jQuery plugin
* Developed by Caleb Jacob and Louis Ameline
* MIT license
*/
(function (root, factory) {
if (typeof define === 'function' && define.amd) {
// AMD. Register as an anonymous module unless amdModuleId is set
define(["jquery"], function (a0) {
return (factory(a0));
});
} else if (typeof exports === 'object') {
// Node. Does not work with strict CommonJS, but
// only CommonJS-like environments that support module.exports,
// like Node.
module.exports = factory(require("jquery"));
} else {
factory(jQuery);
}
}(this, function ($) {
// This file will be UMDified by a build task.
var defaults = {
animation: 'fade',
animationDuration: 350,
content: null,
contentAsHTML: false,
contentCloning: false,
debug: true,
delay: 300,
delayTouch: [300, 500],
functionInit: null,
functionBefore: null,
functionReady: null,
functionAfter: null,
functionFormat: null,
IEmin: 6,
interactive: false,
multiple: false,
// will default to document.body, or must be an element positioned at (0, 0)
// in the document, typically like the very top views of an app.
parent: null,
plugins: ['sideTip'],
repositionOnScroll: false,
restoration: 'none',
selfDestruction: true,
theme: [],
timer: 0,
trackerInterval: 500,
trackOrigin: false,
trackTooltip: false,
trigger: 'hover',
triggerClose: {
click: false,
mouseleave: false,
originClick: false,
scroll: false,
tap: false,
touchleave: false
},
triggerOpen: {
click: false,
mouseenter: false,
tap: false,
touchstart: false
},
updateAnimation: 'rotate',
zIndex: 9999999
},
// we'll avoid using the 'window' global as a good practice but npm's
// jquery@<2.1.0 package actually requires a 'window' global, so not sure
// it's useful at all
win = (typeof window != 'undefined') ? window : null,
// env will be proxied by the core for plugins to have access its properties
env = {
// detect if this device can trigger touch events. Better have a false
// positive (unused listeners, that's ok) than a false negative.
// https://github.com/Modernizr/Modernizr/blob/master/feature-detects/touchevents.js
// http://stackoverflow.com/questions/4817029/whats-the-best-way-to-detect-a-touch-screen-device-using-javascript
hasTouchCapability: !!(
win
&& ( 'ontouchstart' in win
|| (win.DocumentTouch && win.document instanceof win.DocumentTouch)
|| win.navigator.maxTouchPoints
)
),
hasTransitions: transitionSupport(),
IE: false,
// don't set manually, it will be updated by a build task after the manifest
semVer: '4.2.8',
window: win
},
core = function() {
// core variables
// the core emitters
this.__$emitterPrivate = $({});
this.__$emitterPublic = $({});
this.__instancesLatestArr = [];
// collects plugin constructors
this.__plugins = {};
// proxy env variables for plugins who might use them
this._env = env;
};
// core methods
core.prototype = {
/**
* A function to proxy the public methods of an object onto another
*
* @param {object} constructor The constructor to bridge
* @param {object} obj The object that will get new methods (an instance or the core)
* @param {string} pluginName A plugin name for the console log message
* @return {core}
* @private
*/
__bridge: function(constructor, obj, pluginName) {
// if it's not already bridged
if (!obj[pluginName]) {
var fn = function() {};
fn.prototype = constructor;
var pluginInstance = new fn();
// the _init method has to exist in instance constructors but might be missing
// in core constructors
if (pluginInstance.__init) {
pluginInstance.__init(obj);
}
$.each(constructor, function(methodName, fn) {
// don't proxy "private" methods, only "protected" and public ones
if (methodName.indexOf('__') != 0) {
// if the method does not exist yet
if (!obj[methodName]) {
obj[methodName] = function() {
return pluginInstance[methodName].apply(pluginInstance, Array.prototype.slice.apply(arguments));
};
// remember to which plugin this method corresponds (several plugins may
// have methods of the same name, we need to be sure)
obj[methodName].bridged = pluginInstance;
}
else if (defaults.debug) {
console.log('The '+ methodName +' method of the '+ pluginName
+' plugin conflicts with another plugin or native methods');
}
}
});
obj[pluginName] = pluginInstance;
}
return this;
},
/**
* For mockup in Node env if need be, for testing purposes
*
* @return {core}
* @private
*/
__setWindow: function(window) {
env.window = window;
return this;
},
/**
* Returns a ruler, a tool to help measure the size of a tooltip under
* various settings. Meant for plugins
*
* @see Ruler
* @return {object} A Ruler instance
* @protected
*/
_getRuler: function($tooltip) {
return new Ruler($tooltip);
},
/**
* For internal use by plugins, if needed
*
* @return {core}
* @protected
*/
_off: function() {
this.__$emitterPrivate.off.apply(this.__$emitterPrivate, Array.prototype.slice.apply(arguments));
return this;
},
/**
* For internal use by plugins, if needed
*
* @return {core}
* @protected
*/
_on: function() {
this.__$emitterPrivate.on.apply(this.__$emitterPrivate, Array.prototype.slice.apply(arguments));
return this;
},
/**
* For internal use by plugins, if needed
*
* @return {core}
* @protected
*/
_one: function() {
this.__$emitterPrivate.one.apply(this.__$emitterPrivate, Array.prototype.slice.apply(arguments));
return this;
},
/**
* Returns (getter) or adds (setter) a plugin
*
* @param {string|object} plugin Provide a string (in the full form
* "namespace.name") to use as as getter, an object to use as a setter
* @return {object|core}
* @protected
*/
_plugin: function(plugin) {
var self = this;
// getter
if (typeof plugin == 'string') {
var pluginName = plugin,
p = null;
// if the namespace is provided, it's easy to search
if (pluginName.indexOf('.') > 0) {
p = self.__plugins[pluginName];
}
// otherwise, return the first name that matches
else {
$.each(self.__plugins, function(i, plugin) {
if (plugin.name.substring(plugin.name.length - pluginName.length - 1) == '.'+ pluginName) {
p = plugin;
return false;
}
});
}
return p;
}
// setter
else {
// force namespaces
if (plugin.name.indexOf('.') < 0) {
throw new Error('Plugins must be namespaced');
}
self.__plugins[plugin.name] = plugin;
// if the plugin has core features
if (plugin.core) {
// bridge non-private methods onto the core to allow new core methods
self.__bridge(plugin.core, self, plugin.name);
}
return this;
}
},
/**
* Trigger events on the core emitters
*
* @returns {core}
* @protected
*/
_trigger: function() {
var args = Array.prototype.slice.apply(arguments);
if (typeof args[0] == 'string') {
args[0] = { type: args[0] };
}
// note: the order of emitters matters
this.__$emitterPrivate.trigger.apply(this.__$emitterPrivate, args);
this.__$emitterPublic.trigger.apply(this.__$emitterPublic, args);
return this;
},
/**
* Returns instances of all tooltips in the page or an a given element
*
* @param {string|HTML object collection} selector optional Use this
* parameter to restrict the set of objects that will be inspected
* for the retrieval of instances. By default, all instances in the
* page are returned.
* @return {array} An array of instance objects
* @public
*/
instances: function(selector) {
var instances = [],
sel = selector || '.tooltipstered';
$(sel).each(function() {
var $this = $(this),
ns = $this.data('tooltipster-ns');
if (ns) {
$.each(ns, function(i, namespace) {
instances.push($this.data(namespace));
});
}
});
return instances;
},
/**
* Returns the Tooltipster objects generated by the last initializing call
*
* @return {array} An array of instance objects
* @public
*/
instancesLatest: function() {
return this.__instancesLatestArr;
},
/**
* For public use only, not to be used by plugins (use ::_off() instead)
*
* @return {core}
* @public
*/
off: function() {
this.__$emitterPublic.off.apply(this.__$emitterPublic, Array.prototype.slice.apply(arguments));
return this;
},
/**
* For public use only, not to be used by plugins (use ::_on() instead)
*
* @return {core}
* @public
*/
on: function() {
this.__$emitterPublic.on.apply(this.__$emitterPublic, Array.prototype.slice.apply(arguments));
return this;
},
/**
* For public use only, not to be used by plugins (use ::_one() instead)
*
* @return {core}
* @public
*/
one: function() {
this.__$emitterPublic.one.apply(this.__$emitterPublic, Array.prototype.slice.apply(arguments));
return this;
},
/**
* Returns all HTML elements which have one or more tooltips
*
* @param {string} selector optional Use this to restrict the results
* to the descendants of an element
* @return {array} An array of HTML elements
* @public
*/
origins: function(selector) {
var sel = selector ?
selector +' ' :
'';
return $(sel +'.tooltipstered').toArray();
},
/**
* Change default options for all future instances
*
* @param {object} d The options that should be made defaults
* @return {core}
* @public
*/
setDefaults: function(d) {
$.extend(defaults, d);
return this;
},
/**
* For users to trigger their handlers on the public emitter
*
* @returns {core}
* @public
*/
triggerHandler: function() {
this.__$emitterPublic.triggerHandler.apply(this.__$emitterPublic, Array.prototype.slice.apply(arguments));
return this;
}
};
// $.tooltipster will be used to call core methods
$.tooltipster = new core();
// the Tooltipster instance class (mind the capital T)
$.Tooltipster = function(element, options) {
// list of instance variables
// stack of custom callbacks provided as parameters to API methods
this.__callbacks = {
close: [],
open: []
};
// the schedule time of DOM removal
this.__closingTime;
// this will be the user content shown in the tooltip. A capital "C" is used
// because there is also a method called content()
this.__Content;
// for the size tracker
this.__contentBcr;
// to disable the tooltip after destruction
this.__destroyed = false;
// we can't emit directly on the instance because if a method with the same
// name as the event exists, it will be called by jQuery. Se we use a plain
// object as emitter. This emitter is for internal use by plugins,
// if needed.
this.__$emitterPrivate = $({});
// this emitter is for the user to listen to events without risking to mess
// with our internal listeners
this.__$emitterPublic = $({});
this.__enabled = true;
// the reference to the gc interval
this.__garbageCollector;
// various position and size data recomputed before each repositioning
this.__Geometry;
// the tooltip position, saved after each repositioning by a plugin
this.__lastPosition;
// a unique namespace per instance
this.__namespace = 'tooltipster-'+ Math.round(Math.random()*1000000);
this.__options;
// will be used to support origins in scrollable areas
this.__$originParents;
this.__pointerIsOverOrigin = false;
// to remove themes if needed
this.__previousThemes = [];
// the state can be either: appearing, stable, disappearing, closed
this.__state = 'closed';
// timeout references
this.__timeouts = {
close: [],
open: null
};
// store touch events to be able to detect emulated mouse events
this.__touchEvents = [];
// the reference to the tracker interval
this.__tracker = null;
// the element to which this tooltip is associated
this._$origin;
// this will be the tooltip element (jQuery wrapped HTML element).
// It's the job of a plugin to create it and append it to the DOM
this._$tooltip;
// launch
this.__init(element, options);
};
$.Tooltipster.prototype = {
/**
* @param origin
* @param options
* @private
*/
__init: function(origin, options) {
var self = this;
self._$origin = $(origin);
self.__options = $.extend(true, {}, defaults, options);
// some options may need to be reformatted
self.__optionsFormat();
// don't run on old IE if asked no to
if ( !env.IE
|| env.IE >= self.__options.IEmin
) {
// note: the content is null (empty) by default and can stay that
// way if the plugin remains initialized but not fed any content. The
// tooltip will just not appear.
// let's save the initial value of the title attribute for later
// restoration if need be.
var initialTitle = null;
// it will already have been saved in case of multiple tooltips
if (self._$origin.data('tooltipster-initialTitle') === undefined) {
initialTitle = self._$origin.attr('title');
// we do not want initialTitle to be "undefined" because
// of how jQuery's .data() method works
if (initialTitle === undefined) initialTitle = null;
self._$origin.data('tooltipster-initialTitle', initialTitle);
}
// If content is provided in the options, it has precedence over the
// title attribute.
// Note: an empty string is considered content, only 'null' represents
// the absence of content.
// Also, an existing title="" attribute will result in an empty string
// content
if (self.__options.content !== null) {
self.__contentSet(self.__options.content);
}
else {
var selector = self._$origin.attr('data-tooltip-content'),
$el;
if (selector){
$el = $(selector);
}
if ($el && $el[0]) {
self.__contentSet($el.first());
}
else {
self.__contentSet(initialTitle);
}
}
self._$origin
// strip the title off of the element to prevent the default tooltips
// from popping up
.removeAttr('title')
// to be able to find all instances on the page later (upon window
// events in particular)
.addClass('tooltipstered');
// set listeners on the origin
self.__prepareOrigin();
// set the garbage collector
self.__prepareGC();
// init plugins
$.each(self.__options.plugins, function(i, pluginName) {
self._plug(pluginName);
});
// to detect swiping
if (env.hasTouchCapability) {
$(env.window.document.body).on('touchmove.'+ self.__namespace +'-triggerOpen', function(event) {
self._touchRecordEvent(event);
});
}
self
// prepare the tooltip when it gets created. This event must
// be fired by a plugin
._on('created', function() {
self.__prepareTooltip();
})
// save position information when it's sent by a plugin
._on('repositioned', function(e) {
self.__lastPosition = e.position;
});
}
else {
self.__options.disabled = true;
}
},
/**
* Insert the content into the appropriate HTML element of the tooltip
*
* @returns {self}
* @private
*/
__contentInsert: function() {
var self = this,
$el = self._$tooltip.find('.tooltipster-content'),
formattedContent = self.__Content,
format = function(content) {
formattedContent = content;
};
self._trigger({
type: 'format',
content: self.__Content,
format: format
});
if (self.__options.functionFormat) {
formattedContent = self.__options.functionFormat.call(
self,
self,
{ origin: self._$origin[0] },
self.__Content
);
}
if (typeof formattedContent === 'string' && !self.__options.contentAsHTML) {
$el.text(formattedContent);
}
else {
$el
.empty()
.append(formattedContent);
}
return self;
},
/**
* Save the content, cloning it beforehand if need be
*
* @param content
* @returns {self}
* @private
*/
__contentSet: function(content) {
// clone if asked. Cloning the object makes sure that each instance has its
// own version of the content (in case a same object were provided for several
// instances)
// reminder: typeof null === object
if (content instanceof $ && this.__options.contentCloning) {
content = content.clone(true);
}
this.__Content = content;
this._trigger({
type: 'updated',
content: content
});
return this;
},
/**
* Error message about a method call made after destruction
*
* @private
*/
__destroyError: function() {
throw new Error('This tooltip has been destroyed and cannot execute your method call.');
},
/**
* Gather all information about dimensions and available space,
* called before every repositioning
*
* @private
* @returns {object}
*/
__geometry: function() {
var self = this,
$target = self._$origin,
originIsArea = self._$origin.is('area');
// if this._$origin is a map area, the target we'll need
// the dimensions of is actually the image using the map,
// not the area itself
if (originIsArea) {
var mapName = self._$origin.parent().attr('name');
$target = $('img[usemap="#'+ mapName +'"]');
}
var bcr = $target[0].getBoundingClientRect(),
$document = $(env.window.document),
$window = $(env.window),
$parent = $target,
// some useful properties of important elements
geo = {
// available space for the tooltip, see down below
available: {
document: null,
window: null
},
document: {
size: {
height: $document.height(),
width: $document.width()
}
},
window: {
scroll: {
// the second ones are for IE compatibility
left: env.window.scrollX || env.window.document.documentElement.scrollLeft,
top: env.window.scrollY || env.window.document.documentElement.scrollTop
},
size: {
height: $window.height(),
width: $window.width()
}
},
origin: {
// the origin has a fixed lineage if itself or one of its
// ancestors has a fixed position
fixedLineage: false,
// relative to the document
offset: {},
size: {
height: bcr.bottom - bcr.top,
width: bcr.right - bcr.left
},
usemapImage: originIsArea ? $target[0] : null,
// relative to the window
windowOffset: {
bottom: bcr.bottom,
left: bcr.left,
right: bcr.right,
top: bcr.top
}
}
},
geoFixed = false;
// if the element is a map area, some properties may need
// to be recalculated
if (originIsArea) {
var shape = self._$origin.attr('shape'),
coords = self._$origin.attr('coords');
if (coords) {
coords = coords.split(',');
$.map(coords, function(val, i) {
coords[i] = parseInt(val);
});
}
// if the image itself is the area, nothing more to do
if (shape != 'default') {
switch(shape) {
case 'circle':
var circleCenterLeft = coords[0],
circleCenterTop = coords[1],
circleRadius = coords[2],
areaTopOffset = circleCenterTop - circleRadius,
areaLeftOffset = circleCenterLeft - circleRadius;
geo.origin.size.height = circleRadius * 2;
geo.origin.size.width = geo.origin.size.height;
geo.origin.windowOffset.left += areaLeftOffset;
geo.origin.windowOffset.top += areaTopOffset;
break;
case 'rect':
var areaLeft = coords[0],
areaTop = coords[1],
areaRight = coords[2],
areaBottom = coords[3];
geo.origin.size.height = areaBottom - areaTop;
geo.origin.size.width = areaRight - areaLeft;
geo.origin.windowOffset.left += areaLeft;
geo.origin.windowOffset.top += areaTop;
break;
case 'poly':
var areaSmallestX = 0,
areaSmallestY = 0,
areaGreatestX = 0,
areaGreatestY = 0,
arrayAlternate = 'even';
for (var i = 0; i < coords.length; i++) {
var areaNumber = coords[i];
if (arrayAlternate == 'even') {
if (areaNumber > areaGreatestX) {
areaGreatestX = areaNumber;
if (i === 0) {
areaSmallestX = areaGreatestX;
}
}
if (areaNumber < areaSmallestX) {
areaSmallestX = areaNumber;
}
arrayAlternate = 'odd';
}
else {
if (areaNumber > areaGreatestY) {
areaGreatestY = areaNumber;
if (i == 1) {
areaSmallestY = areaGreatestY;
}
}
if (areaNumber < areaSmallestY) {
areaSmallestY = areaNumber;
}
arrayAlternate = 'even';
}
}
geo.origin.size.height = areaGreatestY - areaSmallestY;
geo.origin.size.width = areaGreatestX - areaSmallestX;
geo.origin.windowOffset.left += areaSmallestX;
geo.origin.windowOffset.top += areaSmallestY;
break;
}
}
}
// user callback through an event
var edit = function(r) {
geo.origin.size.height = r.height,
geo.origin.windowOffset.left = r.left,
geo.origin.windowOffset.top = r.top,
geo.origin.size.width = r.width
};
self._trigger({
type: 'geometry',
edit: edit,
geometry: {
height: geo.origin.size.height,
left: geo.origin.windowOffset.left,
top: geo.origin.windowOffset.top,
width: geo.origin.size.width
}
});
// calculate the remaining properties with what we got
geo.origin.windowOffset.right = geo.origin.windowOffset.left + geo.origin.size.width;
geo.origin.windowOffset.bottom = geo.origin.windowOffset.top + geo.origin.size.height;
geo.origin.offset.left = geo.origin.windowOffset.left + geo.window.scroll.left;
geo.origin.offset.top = geo.origin.windowOffset.top + geo.window.scroll.top;
geo.origin.offset.bottom = geo.origin.offset.top + geo.origin.size.height;
geo.origin.offset.right = geo.origin.offset.left + geo.origin.size.width;
// the space that is available to display the tooltip relatively to the document
geo.available.document = {
bottom: {
height: geo.document.size.height - geo.origin.offset.bottom,
width: geo.document.size.width
},
left: {
height: geo.document.size.height,
width: geo.origin.offset.left
},
right: {
height: geo.document.size.height,
width: geo.document.size.width - geo.origin.offset.right
},
top: {
height: geo.origin.offset.top,
width: geo.document.size.width
}
};
// the space that is available to display the tooltip relatively to the viewport
// (the resulting values may be negative if the origin overflows the viewport)
geo.available.window = {
bottom: {
// the inner max is here to make sure the available height is no bigger
// than the viewport height (when the origin is off screen at the top).
// The outer max just makes sure that the height is not negative (when
// the origin overflows at the bottom).
height: Math.max(geo.window.size.height - Math.max(geo.origin.windowOffset.bottom, 0), 0),
width: geo.window.size.width
},
left: {
height: geo.window.size.height,
width: Math.max(geo.origin.windowOffset.left, 0)
},
right: {
height: geo.window.size.height,
width: Math.max(geo.window.size.width - Math.max(geo.origin.windowOffset.right, 0), 0)
},
top: {
height: Math.max(geo.origin.windowOffset.top, 0),
width: geo.window.size.width
}
};
while ($parent[0].tagName.toLowerCase() != 'html') {
if ($parent.css('position') == 'fixed') {
geo.origin.fixedLineage = true;
break;
}
$parent = $parent.parent();
}
return geo;
},
/**
* Some options may need to be formated before being used
*
* @returns {self}
* @private
*/
__optionsFormat: function() {
if (typeof this.__options.animationDuration == 'number') {
this.__options.animationDuration = [this.__options.animationDuration, this.__options.animationDuration];
}
if (typeof this.__options.delay == 'number') {
this.__options.delay = [this.__options.delay, this.__options.delay];
}
if (typeof this.__options.delayTouch == 'number') {
this.__options.delayTouch = [this.__options.delayTouch, this.__options.delayTouch];
}
if (typeof this.__options.theme == 'string') {
this.__options.theme = [this.__options.theme];
}
// determine the future parent
if (this.__options.parent === null) {
this.__options.parent = $(env.window.document.body);
}
else if (typeof this.__options.parent == 'string') {
this.__options.parent = $(this.__options.parent);
}
if (this.__options.trigger == 'hover') {
this.__options.triggerOpen = {
mouseenter: true,
touchstart: true
};
this.__options.triggerClose = {
mouseleave: true,
originClick: true,
touchleave: true
};
}
else if (this.__options.trigger == 'click') {
this.__options.triggerOpen = {
click: true,
tap: true
};
this.__options.triggerClose = {
click: true,
tap: true
};
}
// for the plugins
this._trigger('options');
return this;
},
/**
* Schedules or cancels the garbage collector task
*
* @returns {self}
* @private
*/
__prepareGC: function() {
var self = this;
// in case the selfDestruction option has been changed by a method call
if (self.__options.selfDestruction) {
// the GC task
self.__garbageCollector = setInterval(function() {
var now = new Date().getTime();
// forget the old events
self.__touchEvents = $.grep(self.__touchEvents, function(event, i) {
// 1 minute
return now - event.time > 60000;
});
// auto-destruct if the origin is gone
if (!bodyContains(self._$origin)) {
self.close(function(){
self.destroy();
});
}
}, 20000);
}
else {
clearInterval(self.__garbageCollector);
}
return self;
},
/**
* Sets listeners on the origin if the open triggers require them.
* Unlike the listeners set at opening time, these ones
* remain even when the tooltip is closed. It has been made a
* separate method so it can be called when the triggers are
* changed in the options. Closing is handled in _open()
* because of the bindings that may be needed on the tooltip
* itself
*
* @returns {self}
* @private
*/
__prepareOrigin: function() {
var self = this;
// in case we're resetting the triggers
self._$origin.off('.'+ self.__namespace +'-triggerOpen');
// if the device is touch capable, even if only mouse triggers
// are asked, we need to listen to touch events to know if the mouse
// events are actually emulated (so we can ignore them)
if (env.hasTouchCapability) {
self._$origin.on(
'touchstart.'+ self.__namespace +'-triggerOpen ' +
'touchend.'+ self.__namespace +'-triggerOpen ' +
'touchcancel.'+ self.__namespace +'-triggerOpen',
function(event){
self._touchRecordEvent(event);
}
);
}
// mouse click and touch tap work the same way
if ( self.__options.triggerOpen.click
|| (self.__options.triggerOpen.tap && env.hasTouchCapability)
) {
var eventNames = '';
if (self.__options.triggerOpen.click) {
eventNames += 'click.'+ self.__namespace +'-triggerOpen ';
}
if (self.__options.triggerOpen.tap && env.hasTouchCapability) {
eventNames += 'touchend.'+ self.__namespace +'-triggerOpen';
}
self._$origin.on(eventNames, function(event) {
if (self._touchIsMeaningfulEvent(event)) {
self._open(event);
}
});
}
// mouseenter and touch start work the same way
if ( self.__options.triggerOpen.mouseenter
|| (self.__options.triggerOpen.touchstart && env.hasTouchCapability)
) {
var eventNames = '';
if (self.__options.triggerOpen.mouseenter) {
eventNames += 'mouseenter.'+ self.__namespace +'-triggerOpen ';
}
if (self.__options.triggerOpen.touchstart && env.hasTouchCapability) {
eventNames += 'touchstart.'+ self.__namespace +'-triggerOpen';
}
self._$origin.on(eventNames, function(event) {
if ( self._touchIsTouchEvent(event)
|| !self._touchIsEmulatedEvent(event)
) {
self.__pointerIsOverOrigin = true;
self._openShortly(event);
}
});
}
// info for the mouseleave/touchleave close triggers when they use a delay
if ( self.__options.triggerClose.mouseleave
|| (self.__options.triggerClose.touchleave && env.hasTouchCapability)
) {
var eventNames = '';
if (self.__options.triggerClose.mouseleave) {
eventNames += 'mouseleave.'+ self.__namespace +'-triggerOpen ';
}
if (self.__options.triggerClose.touchleave && env.hasTouchCapability) {
eventNames += 'touchend.'+ self.__namespace +'-triggerOpen touchcancel.'+ self.__namespace +'-triggerOpen';
}
self._$origin.on(eventNames, function(event) {
if (self._touchIsMeaningfulEvent(event)) {
self.__pointerIsOverOrigin = false;
}
});
}
return self;
},
/**
* Do the things that need to be done only once after the tooltip
* HTML element it has been created. It has been made a separate
* method so it can be called when options are changed. Remember
* that the tooltip may actually exist in the DOM before it is
* opened, and present after it has been closed: it's the display
* plugin that takes care of handling it.
*
* @returns {self}
* @private
*/
__prepareTooltip: function() {
var self = this,
p = self.__options.interactive ? 'auto' : '';
// this will be useful to know quickly if the tooltip is in
// the DOM or not
self._$tooltip
.attr('id', self.__namespace)
.css({
// pointer events
'pointer-events': p,
zIndex: self.__options.zIndex
});
// themes
// remove the old ones and add the new ones
$.each(self.__previousThemes, function(i, theme) {
self._$tooltip.removeClass(theme);
});
$.each(self.__options.theme, function(i, theme) {
self._$tooltip.addClass(theme);
});
self.__previousThemes = $.merge([], self.__options.theme);
return self;
},
/**
* Handles the scroll on any of the parents of the origin (when the
* tooltip is open)
*
* @param {object} event
* @returns {self}
* @private
*/
__scrollHandler: function(event) {
var self = this;
if (self.__options.triggerClose.scroll) {
self._close(event);
}
else {
// if the origin or tooltip have been removed: do nothing, the tracker will
// take care of it later
if (bodyContains(self._$origin) && bodyContains(self._$tooltip)) {
var geo = null;
// if the scroll happened on the window
if (event.target === env.window.document) {
// if the origin has a fixed lineage, window scroll will have no
// effect on its position nor on the position of the tooltip
if (!self.__Geometry.origin.fixedLineage) {
// we don't need to do anything unless repositionOnScroll is true
// because the tooltip will already have moved with the window
// (and of course with the origin)
if (self.__options.repositionOnScroll) {
self.reposition(event);
}
}
}
// if the scroll happened on another parent of the tooltip, it means
// that it's in a scrollable area and now needs to have its position
// adjusted or recomputed, depending ont the repositionOnScroll
// option. Also, if the origin is partly hidden due to a parent that
// hides its overflow, we'll just hide (not close) the tooltip.
else {
geo = self.__geometry();
var overflows = false;
// a fixed position origin is not affected by the overflow hiding
// of a parent
if (self._$origin.css('position') != 'fixed') {
self.__$originParents.each(function(i, el) {
var $el = $(el),
overflowX = $el.css('overflow-x'),
overflowY = $el.css('overflow-y');
if (overflowX != 'visible' || overflowY != 'visible') {
var bcr = el.getBoundingClientRect();
if (overflowX != 'visible') {
if ( geo.origin.windowOffset.left < bcr.left
|| geo.origin.windowOffset.right > bcr.right
) {
overflows = true;
return false;
}
}
if (overflowY != 'visible') {
if ( geo.origin.windowOffset.top < bcr.top
|| geo.origin.windowOffset.bottom > bcr.bottom
) {
overflows = true;
return false;
}
}
}
// no need to go further if fixed, for the same reason as above
if ($el.css('position') == 'fixed') {
return false;
}
});
}
if (overflows) {
self._$tooltip.css('visibility', 'hidden');
}
else {
self._$tooltip.css('visibility', 'visible');
// reposition
if (self.__options.repositionOnScroll) {
self.reposition(event);
}
// or just adjust offset
else {
// we have to use offset and not windowOffset because this way,
// only the scroll distance of the scrollable areas are taken into
// account (the scrolltop value of the main window must be
// ignored since the tooltip already moves with it)
var offsetLeft = geo.origin.offset.left - self.__Geometry.origin.offset.left,
offsetTop = geo.origin.offset.top - self.__Geometry.origin.offset.top;
// add the offset to the position initially computed by the display plugin
self._$tooltip.css({
left: self.__lastPosition.coord.left + offsetLeft,
top: self.__lastPosition.coord.top + offsetTop
});
}
}
}
self._trigger({
type: 'scroll',
event: event,
geo: geo
});
}
}
return self;
},
/**
* Changes the state of the tooltip
*
* @param {string} state
* @returns {self}
* @private
*/
__stateSet: function(state) {
this.__state = state;
this._trigger({
type: 'state',
state: state
});
return this;
},
/**
* Clear appearance timeouts
*
* @returns {self}
* @private
*/
__timeoutsClear: function() {
// there is only one possible open timeout: the delayed opening
// when the mouseenter/touchstart open triggers are used
clearTimeout(this.__timeouts.open);
this.__timeouts.open = null;
// ... but several close timeouts: the delayed closing when the
// mouseleave close trigger is used and the timer option
$.each(this.__timeouts.close, function(i, timeout) {
clearTimeout(timeout);
});
this.__timeouts.close = [];
return this;
},
/**
* Start the tracker that will make checks at regular intervals
*
* @returns {self}
* @private
*/
__trackerStart: function() {
var self = this,
$content = self._$tooltip.find('.tooltipster-content');
// get the initial content size
if (self.__options.trackTooltip) {
self.__contentBcr = $content[0].getBoundingClientRect();
}
self.__tracker = setInterval(function() {
// if the origin or tooltip elements have been removed.
// Note: we could destroy the instance now if the origin has
// been removed but we'll leave that task to our garbage collector
if (!bodyContains(self._$origin) || !bodyContains(self._$tooltip)) {
self._close();
}
// if everything is alright
else {
// compare the former and current positions of the origin to reposition
// the tooltip if need be
if (self.__options.trackOrigin) {
var g = self.__geometry(),
identical = false;
// compare size first (a change requires repositioning too)
if (areEqual(g.origin.size, self.__Geometry.origin.size)) {
// for elements that have a fixed lineage (see __geometry()), we track the
// top and left properties (relative to window)
if (self.__Geometry.origin.fixedLineage) {
if (areEqual(g.origin.windowOffset, self.__Geometry.origin.windowOffset)) {
identical = true;
}
}
// otherwise, track total offset (relative to document)
else {
if (areEqual(g.origin.offset, self.__Geometry.origin.offset)) {
identical = true;
}
}
}
if (!identical) {
// close the tooltip when using the mouseleave close trigger
// (see https://github.com/calebjacob/tooltipster/pull/253)
if (self.__options.triggerClose.mouseleave) {
self._close();
}
else {
self.reposition();
}
}
}
if (self.__options.trackTooltip) {
var currentBcr = $content[0].getBoundingClientRect();
if ( currentBcr.height !== self.__contentBcr.height
|| currentBcr.width !== self.__contentBcr.width
) {
self.reposition();
self.__contentBcr = currentBcr;
}
}
}
}, self.__options.trackerInterval);
return self;
},
/**
* Closes the tooltip (after the closing delay)
*
* @param event
* @param callback
* @param force Set to true to override a potential refusal of the user's function
* @returns {self}
* @protected
*/
_close: function(event, callback, force) {
var self = this,
ok = true;
self._trigger({
type: 'close',
event: event,
stop: function() {
ok = false;
}
});
// a destroying tooltip (force == true) may not refuse to close
if (ok || force) {
// save the method custom callback and cancel any open method custom callbacks
if (callback) self.__callbacks.close.push(callback);
self.__callbacks.open = [];
// clear open/close timeouts
self.__timeoutsClear();
var finishCallbacks = function() {
// trigger any close method custom callbacks and reset them
$.each(self.__callbacks.close, function(i,c) {
c.call(self, self, {
event: event,
origin: self._$origin[0]
});
});
self.__callbacks.close = [];
};
if (self.__state != 'closed') {
var necessary = true,
d = new Date(),
now = d.getTime(),
newClosingTime = now + self.__options.animationDuration[1];
// the tooltip may already already be disappearing, but if a new
// call to close() is made after the animationDuration was changed
// to 0 (for example), we ought to actually close it sooner than
// previously scheduled. In that case it should be noted that the
// browser will not adapt the animation duration to the new
// animationDuration that was set after the start of the closing
// animation.
// Note: the same thing could be considered at opening, but is not
// really useful since the tooltip is actually opened immediately
// upon a call to _open(). Since it would not make the opening
// animation finish sooner, its sole impact would be to trigger the
// state event and the open callbacks sooner than the actual end of
// the opening animation, which is not great.
if (self.__state == 'disappearing') {
if ( newClosingTime > self.__closingTime
// in case closing is actually overdue because the script
// execution was suspended. See #679
&& self.__options.animationDuration[1] > 0
) {
necessary = false;
}
}
if (necessary) {
self.__closingTime = newClosingTime;
if (self.__state != 'disappearing') {
self.__stateSet('disappearing');
}
var finish = function() {
// stop the tracker
clearInterval(self.__tracker);
// a "beforeClose" option has been asked several times but would
// probably useless since the content element is still accessible
// via ::content(), and because people can always use listeners
// inside their content to track what's going on. For the sake of
// simplicity, this has been denied. Bur for the rare people who
// really need the option (for old browsers or for the case where
// detaching the content is actually destructive, for file or
// password inputs for example), this event will do the work.
self._trigger({
type: 'closing',
event: event
});
// unbind listeners which are no longer needed
self._$tooltip
.off('.'+ self.__namespace +'-triggerClose')
.removeClass('tooltipster-dying');
// orientationchange, scroll and resize listeners
$(env.window).off('.'+ self.__namespace +'-triggerClose');
// scroll listeners
self.__$originParents.each(function(i, el) {
$(el).off('scroll.'+ self.__namespace +'-triggerClose');
});
// clear the array to prevent memory leaks
self.__$originParents = null;
$(env.window.document.body).off('.'+ self.__namespace +'-triggerClose');
self._$origin.off('.'+ self.__namespace +'-triggerClose');
self._off('dismissable');
// a plugin that would like to remove the tooltip from the
// DOM when closed should bind on this
self.__stateSet('closed');
// trigger event
self._trigger({
type: 'after',
event: event
});
// call our constructor custom callback function
if (self.__options.functionAfter) {
self.__options.functionAfter.call(self, self, {
event: event,
origin: self._$origin[0]
});
}
// call our method custom callbacks functions
finishCallbacks();
};
if (env.hasTransitions) {
self._$tooltip.css({
'-moz-animation-duration': self.__options.animationDuration[1] + 'ms',
'-ms-animation-duration': self.__options.animationDuration[1] + 'ms',
'-o-animation-duration': self.__options.animationDuration[1] + 'ms',
'-webkit-animation-duration': self.__options.animationDuration[1] + 'ms',
'animation-duration': self.__options.animationDuration[1] + 'ms',
'transition-duration': self.__options.animationDuration[1] + 'ms'
});
self._$tooltip
// clear both potential open and close tasks
.clearQueue()
.removeClass('tooltipster-show')
// for transitions only
.addClass('tooltipster-dying');
if (self.__options.animationDuration[1] > 0) {
self._$tooltip.delay(self.__options.animationDuration[1]);
}
self._$tooltip.queue(finish);
}
else {
self._$tooltip
.stop()
.fadeOut(self.__options.animationDuration[1], finish);
}
}
}
// if the tooltip is already closed, we still need to trigger
// the method custom callbacks
else {
finishCallbacks();
}
}
return self;
},
/**
* For internal use by plugins, if needed
*
* @returns {self}
* @protected
*/
_off: function() {
this.__$emitterPrivate.off.apply(this.__$emitterPrivate, Array.prototype.slice.apply(arguments));
return this;
},
/**
* For internal use by plugins, if needed
*
* @returns {self}
* @protected
*/
_on: function() {
this.__$emitterPrivate.on.apply(this.__$emitterPrivate, Array.prototype.slice.apply(arguments));
return this;
},
/**
* For internal use by plugins, if needed
*
* @returns {self}
* @protected
*/
_one: function() {
this.__$emitterPrivate.one.apply(this.__$emitterPrivate, Array.prototype.slice.apply(arguments));
return this;
},
/**
* Opens the tooltip right away.
*
* @param event
* @param callback Will be called when the opening animation is over
* @returns {self}
* @protected
*/
_open: function(event, callback) {
var self = this;
// if the destruction process has not begun and if this was not
// triggered by an unwanted emulated click event
if (!self.__destroying) {
// check that the origin is still in the DOM
if ( bodyContains(self._$origin)
// if the tooltip is enabled
&& self.__enabled
) {
var ok = true;
// if the tooltip is not open yet, we need to call functionBefore.
// otherwise we can jst go on
if (self.__state == 'closed') {
// trigger an event. The event.stop function allows the callback
// to prevent the opening of the tooltip
self._trigger({
type: 'before',
event: event,
stop: function() {
ok = false;
}
});
if (ok && self.__options.functionBefore) {
// call our custom function before continuing
ok = self.__options.functionBefore.call(self, self, {
event: event,
origin: self._$origin[0]
});
}
}
if (ok !== false) {
// if there is some content
if (self.__Content !== null) {
// save the method callback and cancel close method callbacks
if (callback) {
self.__callbacks.open.push(callback);
}
self.__callbacks.close = [];
// get rid of any appearance timeouts
self.__timeoutsClear();
var extraTime,
finish = function() {
if (self.__state != 'stable') {
self.__stateSet('stable');
}
// trigger any open method custom callbacks and reset them
$.each(self.__callbacks.open, function(i,c) {
c.call(self, self, {
origin: self._$origin[0],
tooltip: self._$tooltip[0]
});
});
self.__callbacks.open = [];
};
// if the tooltip is already open
if (self.__state !== 'closed') {
// the timer (if any) will start (or restart) right now
extraTime = 0;
// if it was disappearing, cancel that
if (self.__state === 'disappearing') {
self.__stateSet('appearing');
if (env.hasTransitions) {
self._$tooltip
.clearQueue()
.removeClass('tooltipster-dying')
.addClass('tooltipster-show');
if (self.__options.animationDuration[0] > 0) {
self._$tooltip.delay(self.__options.animationDuration[0]);
}
self._$tooltip.queue(finish);
}
else {
// in case the tooltip was currently fading out, bring it back
// to life
self._$tooltip
.stop()
.fadeIn(finish);
}
}
// if the tooltip is already open, we still need to trigger the method
// custom callback
else if (self.__state == 'stable') {
finish();
}
}
// if the tooltip isn't already open, open it
else {
// a plugin must bind on this and store the tooltip in this._$tooltip
self.__stateSet('appearing');
// the timer (if any) will start when the tooltip has fully appeared
// after its transition
extraTime = self.__options.animationDuration[0];
// insert the content inside the tooltip
self.__contentInsert();
// reposition the tooltip and attach to the DOM
self.reposition(event, true);
// animate in the tooltip. If the display plugin wants no css
// animations, it may override the animation option with a
// dummy value that will produce no effect
if (env.hasTransitions) {
// note: there seems to be an issue with start animations which
// are randomly not played on fast devices in both Chrome and FF,
// couldn't find a way to solve it yet. It seems that applying
// the classes before appending to the DOM helps a little, but
// it messes up some CSS transitions. The issue almost never
// happens when delay[0]==0 though
self._$tooltip
.addClass('tooltipster-'+ self.__options.animation)
.addClass('tooltipster-initial')
.css({
'-moz-animation-duration': self.__options.animationDuration[0] + 'ms',
'-ms-animation-duration': self.__options.animationDuration[0] + 'ms',
'-o-animation-duration': self.__options.animationDuration[0] + 'ms',
'-webkit-animation-duration': self.__options.animationDuration[0] + 'ms',
'animation-duration': self.__options.animationDuration[0] + 'ms',
'transition-duration': self.__options.animationDuration[0] + 'ms'
});
setTimeout(
function() {
// a quick hover may have already triggered a mouseleave
if (self.__state != 'closed') {
self._$tooltip
.addClass('tooltipster-show')
.removeClass('tooltipster-initial');
if (self.__options.animationDuration[0] > 0) {
self._$tooltip.delay(self.__options.animationDuration[0]);
}
self._$tooltip.queue(finish);
}
},
0
);
}
else {
// old browsers will have to live with this
self._$tooltip
.css('display', 'none')
.fadeIn(self.__options.animationDuration[0], finish);
}
// checks if the origin is removed while the tooltip is open
self.__trackerStart();
// NOTE: the listeners below have a '-triggerClose' namespace
// because we'll remove them when the tooltip closes (unlike
// the '-triggerOpen' listeners). So some of them are actually
// not about close triggers, rather about positioning.
$(env.window)
// reposition on resize
.on('resize.'+ self.__namespace +'-triggerClose', function(e) {
var $ae = $(document.activeElement);
// reposition only if the resize event was not triggered upon the opening
// of a virtual keyboard due to an input field being focused within the tooltip
// (otherwise the repositioning would lose the focus)
if ( (!$ae.is('input') && !$ae.is('textarea'))
|| !$.contains(self._$tooltip[0], $ae[0])
) {
self.reposition(e);
}
})
// same as below for parents
.on('scroll.'+ self.__namespace +'-triggerClose', function(e) {
self.__scrollHandler(e);
});
self.__$originParents = self._$origin.parents();
// scrolling may require the tooltip to be moved or even
// repositioned in some cases
self.__$originParents.each(function(i, parent) {
$(parent).on('scroll.'+ self.__namespace +'-triggerClose', function(e) {
self.__scrollHandler(e);
});
});
if ( self.__options.triggerClose.mouseleave
|| (self.__options.triggerClose.touchleave && env.hasTouchCapability)
) {
// we use an event to allow users/plugins to control when the mouseleave/touchleave
// close triggers will come to action. It allows to have more triggering elements
// than just the origin and the tooltip for example, or to cancel/delay the closing,
// or to make the tooltip interactive even if it wasn't when it was open, etc.
self._on('dismissable', function(event) {
if (event.dismissable) {
if (event.delay) {
timeout = setTimeout(function() {
// event.event may be undefined
self._close(event.event);
}, event.delay);
self.__timeouts.close.push(timeout);
}
else {
self._close(event);
}
}
else {
clearTimeout(timeout);
}
});
// now set the listeners that will trigger 'dismissable' events
var $elements = self._$origin,
eventNamesIn = '',
eventNamesOut = '',
timeout = null;
// if we have to allow interaction, bind on the tooltip too
if (self.__options.interactive) {
$elements = $elements.add(self._$tooltip);
}
if (self.__options.triggerClose.mouseleave) {
eventNamesIn += 'mouseenter.'+ self.__namespace +'-triggerClose ';
eventNamesOut += 'mouseleave.'+ self.__namespace +'-triggerClose ';
}
if (self.__options.triggerClose.touchleave && env.hasTouchCapability) {
eventNamesIn += 'touchstart.'+ self.__namespace +'-triggerClose';
eventNamesOut += 'touchend.'+ self.__namespace +'-triggerClose touchcancel.'+ self.__namespace +'-triggerClose';
}
$elements
// close after some time spent outside of the elements
.on(eventNamesOut, function(event) {
// it's ok if the touch gesture ended up to be a swipe,
// it's still a "touch leave" situation
if ( self._touchIsTouchEvent(event)
|| !self._touchIsEmulatedEvent(event)
) {
var delay = (event.type == 'mouseleave') ?
self.__options.delay :
self.__options.delayTouch;
self._trigger({
delay: delay[1],
dismissable: true,
event: event,
type: 'dismissable'
});
}
})
// suspend the mouseleave timeout when the pointer comes back
// over the elements
.on(eventNamesIn, function(event) {
// it's also ok if the touch event is a swipe gesture
if ( self._touchIsTouchEvent(event)
|| !self._touchIsEmulatedEvent(event)
) {
self._trigger({
dismissable: false,
event: event,
type: 'dismissable'
});
}
});
}
// close the tooltip when the origin gets a mouse click (common behavior of
// native tooltips)
if (self.__options.triggerClose.originClick) {
self._$origin.on('click.'+ self.__namespace + '-triggerClose', function(event) {
// we could actually let a tap trigger this but this feature just
// does not make sense on touch devices
if ( !self._touchIsTouchEvent(event)
&& !self._touchIsEmulatedEvent(event)
) {
self._close(event);
}
});
}
// set the same bindings for click and touch on the body to close the tooltip
if ( self.__options.triggerClose.click
|| (self.__options.triggerClose.tap && env.hasTouchCapability)
) {
// don't set right away since the click/tap event which triggered this method
// (if it was a click/tap) is going to bubble up to the body, we don't want it
// to close the tooltip immediately after it opened
setTimeout(function() {
if (self.__state != 'closed') {
var eventNames = '',
$body = $(env.window.document.body);
if (self.__options.triggerClose.click) {
eventNames += 'click.'+ self.__namespace +'-triggerClose ';
}
if (self.__options.triggerClose.tap && env.hasTouchCapability) {
eventNames += 'touchend.'+ self.__namespace +'-triggerClose';
}
$body.on(eventNames, function(event) {
if (self._touchIsMeaningfulEvent(event)) {
self._touchRecordEvent(event);
if (!self.__options.interactive || !$.contains(self._$tooltip[0], event.target)) {
self._close(event);
}
}
});
// needed to detect and ignore swiping
if (self.__options.triggerClose.tap && env.hasTouchCapability) {
$body.on('touchstart.'+ self.__namespace +'-triggerClose', function(event) {
self._touchRecordEvent(event);
});
}
}
}, 0);
}
self._trigger('ready');
// call our custom callback
if (self.__options.functionReady) {
self.__options.functionReady.call(self, self, {
origin: self._$origin[0],
tooltip: self._$tooltip[0]
});
}
}
// if we have a timer set, let the countdown begin
if (self.__options.timer > 0) {
var timeout = setTimeout(function() {
self._close();
}, self.__options.timer + extraTime);
self.__timeouts.close.push(timeout);
}
}
}
}
}
return self;
},
/**
* When using the mouseenter/touchstart open triggers, this function will
* schedule the opening of the tooltip after the delay, if there is one
*
* @param event
* @returns {self}
* @protected
*/
_openShortly: function(event) {
var self = this,
ok = true;
if (self.__state != 'stable' && self.__state != 'appearing') {
// if a timeout is not already running
if (!self.__timeouts.open) {
self._trigger({
type: 'start',
event: event,
stop: function() {
ok = false;
}
});
if (ok) {
var delay = (event.type.indexOf('touch') == 0) ?
self.__options.delayTouch :
self.__options.delay;
if (delay[0]) {
self.__timeouts.open = setTimeout(function() {
self.__timeouts.open = null;
// open only if the pointer (mouse or touch) is still over the origin.
// The check on the "meaningful event" can only be made here, after some
// time has passed (to know if the touch was a swipe or not)
if (self.__pointerIsOverOrigin && self._touchIsMeaningfulEvent(event)) {
// signal that we go on
self._trigger('startend');
self._open(event);
}
else {
// signal that we cancel
self._trigger('startcancel');
}
}, delay[0]);
}
else {
// signal that we go on
self._trigger('startend');
self._open(event);
}
}
}
}
return self;
},
/**
* Meant for plugins to get their options
*
* @param {string} pluginName The name of the plugin that asks for its options
* @param {object} defaultOptions The default options of the plugin
* @returns {object} The options
* @protected
*/
_optionsExtract: function(pluginName, defaultOptions) {
var self = this,
options = $.extend(true, {}, defaultOptions);
// if the plugin options were isolated in a property named after the
// plugin, use them (prevents conflicts with other plugins)
var pluginOptions = self.__options[pluginName];
// if not, try to get them as regular options
if (!pluginOptions){
pluginOptions = {};
$.each(defaultOptions, function(optionName, value) {
var o = self.__options[optionName];
if (o !== undefined) {
pluginOptions[optionName] = o;
}
});
}
// let's merge the default options and the ones that were provided. We'd want
// to do a deep copy but not let jQuery merge arrays, so we'll do a shallow
// extend on two levels, that will be enough if options are not more than 1
// level deep
$.each(options, function(optionName, value) {
if (pluginOptions[optionName] !== undefined) {
if (( typeof value == 'object'
&& !(value instanceof Array)
&& value != null
)
&&
( typeof pluginOptions[optionName] == 'object'
&& !(pluginOptions[optionName] instanceof Array)
&& pluginOptions[optionName] != null
)
) {
$.extend(options[optionName], pluginOptions[optionName]);
}
else {
options[optionName] = pluginOptions[optionName];
}
}
});
return options;
},
/**
* Used at instantiation of the plugin, or afterwards by plugins that activate themselves
* on existing instances
*
* @param {object} pluginName
* @returns {self}
* @protected
*/
_plug: function(pluginName) {
var plugin = $.tooltipster._plugin(pluginName);
if (plugin) {
// if there is a constructor for instances
if (plugin.instance) {
// proxy non-private methods on the instance to allow new instance methods
$.tooltipster.__bridge(plugin.instance, this, plugin.name);
}
}
else {
throw new Error('The "'+ pluginName +'" plugin is not defined');
}
return this;
},
/**
* This will return true if the event is a mouse event which was
* emulated by the browser after a touch event. This allows us to
* really dissociate mouse and touch triggers.
*
* There is a margin of error if a real mouse event is fired right
* after (within the delay shown below) a touch event on the same
* element, but hopefully it should not happen often.
*
* @returns {boolean}
* @protected
*/
_touchIsEmulatedEvent: function(event) {
var isEmulated = false,
now = new Date().getTime();
for (var i = this.__touchEvents.length - 1; i >= 0; i--) {
var e = this.__touchEvents[i];
// delay, in milliseconds. It's supposed to be 300ms in
// most browsers (350ms on iOS) to allow a double tap but
// can be less (check out FastClick for more info)
if (now - e.time < 500) {
if (e.target === event.target) {
isEmulated = true;
}
}
else {
break;
}
}
return isEmulated;
},
/**
* Returns false if the event was an emulated mouse event or
* a touch event involved in a swipe gesture.
*
* @param {object} event
* @returns {boolean}
* @protected
*/
_touchIsMeaningfulEvent: function(event) {
return (
(this._touchIsTouchEvent(event) && !this._touchSwiped(event.target))
|| (!this._touchIsTouchEvent(event) && !this._touchIsEmulatedEvent(event))
);
},
/**
* Checks if an event is a touch event
*
* @param {object} event
* @returns {boolean}
* @protected
*/
_touchIsTouchEvent: function(event){
return event.type.indexOf('touch') == 0;
},
/**
* Store touch events for a while to detect swiping and emulated mouse events
*
* @param {object} event
* @returns {self}
* @protected
*/
_touchRecordEvent: function(event) {
if (this._touchIsTouchEvent(event)) {
event.time = new Date().getTime();
this.__touchEvents.push(event);
}
return this;
},
/**
* Returns true if a swipe happened after the last touchstart event fired on
* event.target.
*
* We need to differentiate a swipe from a tap before we let the event open
* or close the tooltip. A swipe is when a touchmove (scroll) event happens
* on the body between the touchstart and the touchend events of an element.
*
* @param {object} target The HTML element that may have triggered the swipe
* @returns {boolean}
* @protected
*/
_touchSwiped: function(target) {
var swiped = false;
for (var i = this.__touchEvents.length - 1; i >= 0; i--) {
var e = this.__touchEvents[i];
if (e.type == 'touchmove') {
swiped = true;
break;
}
else if (
e.type == 'touchstart'
&& target === e.target
) {
break;
}
}
return swiped;
},
/**
* Triggers an event on the instance emitters
*
* @returns {self}
* @protected
*/
_trigger: function() {
var args = Array.prototype.slice.apply(arguments);
if (typeof args[0] == 'string') {
args[0] = { type: args[0] };
}
// add properties to the event
args[0].instance = this;
args[0].origin = this._$origin ? this._$origin[0] : null;
args[0].tooltip = this._$tooltip ? this._$tooltip[0] : null;
// note: the order of emitters matters
this.__$emitterPrivate.trigger.apply(this.__$emitterPrivate, args);
$.tooltipster._trigger.apply($.tooltipster, args);
this.__$emitterPublic.trigger.apply(this.__$emitterPublic, args);
return this;
},
/**
* Deactivate a plugin on this instance
*
* @returns {self}
* @protected
*/
_unplug: function(pluginName) {
var self = this;
// if the plugin has been activated on this instance
if (self[pluginName]) {
var plugin = $.tooltipster._plugin(pluginName);
// if there is a constructor for instances
if (plugin.instance) {
// unbridge
$.each(plugin.instance, function(methodName, fn) {
// if the method exists (privates methods do not) and comes indeed from
// this plugin (may be missing or come from a conflicting plugin).
if ( self[methodName]
&& self[methodName].bridged === self[pluginName]
) {
delete self[methodName];
}
});
}
// destroy the plugin
if (self[pluginName].__destroy) {
self[pluginName].__destroy();
}
// remove the reference to the plugin instance
delete self[pluginName];
}
return self;
},
/**
* @see self::_close
* @returns {self}
* @public
*/
close: function(callback) {
if (!this.__destroyed) {
this._close(null, callback);
}
else {
this.__destroyError();
}
return this;
},
/**
* Sets or gets the content of the tooltip
*
* @returns {mixed|self}
* @public
*/
content: function(content) {
var self = this;
// getter method
if (content === undefined) {
return self.__Content;
}
// setter method
else {
if (!self.__destroyed) {
// change the content
self.__contentSet(content);
if (self.__Content !== null) {
// update the tooltip if it is open
if (self.__state !== 'closed') {
// reset the content in the tooltip
self.__contentInsert();
// reposition and resize the tooltip
self.reposition();
// if we want to play a little animation showing the content changed
if (self.__options.updateAnimation) {
if (env.hasTransitions) {
// keep the reference in the local scope
var animation = self.__options.updateAnimation;
self._$tooltip.addClass('tooltipster-update-'+ animation);
// remove the class after a while. The actual duration of the
// update animation may be shorter, it's set in the CSS rules
setTimeout(function() {
if (self.__state != 'closed') {
self._$tooltip.removeClass('tooltipster-update-'+ animation);
}
}, 1000);
}
else {
self._$tooltip.fadeTo(200, 0.5, function() {
if (self.__state != 'closed') {
self._$tooltip.fadeTo(200, 1);
}
});
}
}
}
}
else {
self._close();
}
}
else {
self.__destroyError();
}
return self;
}
},
/**
* Destroys the tooltip
*
* @returns {self}
* @public
*/
destroy: function() {
var self = this;
if (!self.__destroyed) {
if(self.__state != 'closed'){
// no closing delay
self.option('animationDuration', 0)
// force closing
._close(null, null, true);
}
else {
// there might be an open timeout still running
self.__timeoutsClear();
}
// send event
self._trigger('destroy');
self.__destroyed = true;
self._$origin
.removeData(self.__namespace)
// remove the open trigger listeners
.off('.'+ self.__namespace +'-triggerOpen');
// remove the touch listener
$(env.window.document.body).off('.' + self.__namespace +'-triggerOpen');
var ns = self._$origin.data('tooltipster-ns');
// if the origin has been removed from DOM, its data may
// well have been destroyed in the process and there would
// be nothing to clean up or restore
if (ns) {
// if there are no more tooltips on this element
if (ns.length === 1) {
// optional restoration of a title attribute
var title = null;
if (self.__options.restoration == 'previous') {
title = self._$origin.data('tooltipster-initialTitle');
}
else if (self.__options.restoration == 'current') {
// old school technique to stringify when outerHTML is not supported
title = (typeof self.__Content == 'string') ?
self.__Content :
$('<div></div>').append(self.__Content).html();
}
if (title) {
self._$origin.attr('title', title);
}
// final cleaning
self._$origin.removeClass('tooltipstered');
self._$origin
.removeData('tooltipster-ns')
.removeData('tooltipster-initialTitle');
}
else {
// remove the instance namespace from the list of namespaces of
// tooltips present on the element
ns = $.grep(ns, function(el, i) {
return el !== self.__namespace;
});
self._$origin.data('tooltipster-ns', ns);
}
}
// last event
self._trigger('destroyed');
// unbind private and public event listeners
self._off();
self.off();
// remove external references, just in case
self.__Content = null;
self.__$emitterPrivate = null;
self.__$emitterPublic = null;
self.__options.parent = null;
self._$origin = null;
self._$tooltip = null;
// make sure the object is no longer referenced in there to prevent
// memory leaks
$.tooltipster.__instancesLatestArr = $.grep($.tooltipster.__instancesLatestArr, function(el, i) {
return self !== el;
});
clearInterval(self.__garbageCollector);
}
else {
self.__destroyError();
}
// we return the scope rather than true so that the call to
// .tooltipster('destroy') actually returns the matched elements
// and applies to all of them
return self;
},
/**
* Disables the tooltip
*
* @returns {self}
* @public
*/
disable: function() {
if (!this.__destroyed) {
// close first, in case the tooltip would not disappear on
// its own (no close trigger)
this._close();
this.__enabled = false;
return this;
}
else {
this.__destroyError();
}
return this;
},
/**
* Returns the HTML element of the origin
*
* @returns {self}
* @public
*/
elementOrigin: function() {
if (!this.__destroyed) {
return this._$origin[0];
}
else {
this.__destroyError();
}
},
/**
* Returns the HTML element of the tooltip
*
* @returns {self}
* @public
*/
elementTooltip: function() {
return this._$tooltip ? this._$tooltip[0] : null;
},
/**
* Enables the tooltip
*
* @returns {self}
* @public
*/
enable: function() {
this.__enabled = true;
return this;
},
/**
* Alias, deprecated in 4.0.0
*
* @param {function} callback
* @returns {self}
* @public
*/
hide: function(callback) {
return this.close(callback);
},
/**
* Returns the instance
*
* @returns {self}
* @public
*/
instance: function() {
return this;
},
/**
* For public use only, not to be used by plugins (use ::_off() instead)
*
* @returns {self}
* @public
*/
off: function() {
if (!this.__destroyed) {
this.__$emitterPublic.off.apply(this.__$emitterPublic, Array.prototype.slice.apply(arguments));
}
return this;
},
/**
* For public use only, not to be used by plugins (use ::_on() instead)
*
* @returns {self}
* @public
*/
on: function() {
if (!this.__destroyed) {
this.__$emitterPublic.on.apply(this.__$emitterPublic, Array.prototype.slice.apply(arguments));
}
else {
this.__destroyError();
}
return this;
},
/**
* For public use only, not to be used by plugins
*
* @returns {self}
* @public
*/
one: function() {
if (!this.__destroyed) {
this.__$emitterPublic.one.apply(this.__$emitterPublic, Array.prototype.slice.apply(arguments));
}
else {
this.__destroyError();
}
return this;
},
/**
* @see self::_open
* @returns {self}
* @public
*/
open: function(callback) {
if (!this.__destroyed) {
this._open(null, callback);
}
else {
this.__destroyError();
}
return this;
},
/**
* Get or set options. For internal use and advanced users only.
*
* @param {string} o Option name
* @param {mixed} val optional A new value for the option
* @return {mixed|self} If val is omitted, the value of the option
* is returned, otherwise the instance itself is returned
* @public
*/
option: function(o, val) {
// getter
if (val === undefined) {
return this.__options[o];
}
// setter
else {
if (!this.__destroyed) {
// change value
this.__options[o] = val;
// format
this.__optionsFormat();
// re-prepare the triggers if needed
if ($.inArray(o, ['trigger', 'triggerClose', 'triggerOpen']) >= 0) {
this.__prepareOrigin();
}
if (o === 'selfDestruction') {
this.__prepareGC();
}
}
else {
this.__destroyError();
}
return this;
}
},
/**
* This method is in charge of setting the position and size properties of the tooltip.
* All the hard work is delegated to the display plugin.
* Note: The tooltip may be detached from the DOM at the moment the method is called
* but must be attached by the end of the method call.
*
* @param {object} event For internal use only. Defined if an event such as
* window resizing triggered the repositioning
* @param {boolean} tooltipIsDetached For internal use only. Set this to true if you
* know that the tooltip not being in the DOM is not an issue (typically when the
* tooltip element has just been created but has not been added to the DOM yet).
* @returns {self}
* @public
*/
reposition: function(event, tooltipIsDetached) {
var self = this;
if (!self.__destroyed) {
// if the tooltip is still open and the origin is still in the DOM
if (self.__state != 'closed' && bodyContains(self._$origin)) {
// if the tooltip has not been removed from DOM manually (or if it
// has been detached on purpose)
if (tooltipIsDetached || bodyContains(self._$tooltip)) {
if (!tooltipIsDetached) {
// detach in case the tooltip overflows the window and adds
// scrollbars to it, so __geometry can be accurate
self._$tooltip.detach();
}
// refresh the geometry object before passing it as a helper
self.__Geometry = self.__geometry();
// let a plugin fo the rest
self._trigger({
type: 'reposition',
event: event,
helper: {
geo: self.__Geometry
}
});
}
}
}
else {
self.__destroyError();
}
return self;
},
/**
* Alias, deprecated in 4.0.0
*
* @param callback
* @returns {self}
* @public
*/
show: function(callback) {
return this.open(callback);
},
/**
* Returns some properties about the instance
*
* @returns {object}
* @public
*/
status: function() {
return {
destroyed: this.__destroyed,
enabled: this.__enabled,
open: this.__state !== 'closed',
state: this.__state
};
},
/**
* For public use only, not to be used by plugins
*
* @returns {self}
* @public
*/
triggerHandler: function() {
if (!this.__destroyed) {
this.__$emitterPublic.triggerHandler.apply(this.__$emitterPublic, Array.prototype.slice.apply(arguments));
}
else {
this.__destroyError();
}
return this;
}
};
$.fn.tooltipster = function() {
// for using in closures
var args = Array.prototype.slice.apply(arguments),
// common mistake: an HTML element can't be in several tooltips at the same time
contentCloningWarning = 'You are using a single HTML element as content for several tooltips. You probably want to set the contentCloning option to TRUE.';
// this happens with $(sel).tooltipster(...) when $(sel) does not match anything
if (this.length === 0) {
// still chainable
return this;
}
// this happens when calling $(sel).tooltipster('methodName or options')
// where $(sel) matches one or more elements
else {
// method calls
if (typeof args[0] === 'string') {
var v = '#*$~&';
this.each(function() {
// retrieve the namepaces of the tooltip(s) that exist on that element.
// We will interact with the first tooltip only.
var ns = $(this).data('tooltipster-ns'),
// self represents the instance of the first tooltipster plugin
// associated to the current HTML object of the loop
self = ns ? $(this).data(ns[0]) : null;
// if the current element holds a tooltipster instance
if (self) {
if (typeof self[args[0]] === 'function') {
if ( this.length > 1
&& args[0] == 'content'
&& ( args[1] instanceof $
|| (typeof args[1] == 'object' && args[1] != null && args[1].tagName)
)
&& !self.__options.contentCloning
&& self.__options.debug
) {
console.log(contentCloningWarning);
}
// note : args[1] and args[2] may not be defined
var resp = self[args[0]](args[1], args[2]);
}
else {
throw new Error('Unknown method "'+ args[0] +'"');
}
// if the function returned anything other than the instance
// itself (which implies chaining, except for the `instance` method)
if (resp !== self || args[0] === 'instance') {
v = resp;
// return false to stop .each iteration on the first element
// matched by the selector
return false;
}
}
else {
throw new Error('You called Tooltipster\'s "'+ args[0] +'" method on an uninitialized element');
}
});
return (v !== '#*$~&') ? v : this;
}
// first argument is undefined or an object: the tooltip is initializing
else {
// reset the array of last initialized objects
$.tooltipster.__instancesLatestArr = [];
// is there a defined value for the multiple option in the options object ?
var multipleIsSet = args[0] && args[0].multiple !== undefined,
// if the multiple option is set to true, or if it's not defined but
// set to true in the defaults
multiple = (multipleIsSet && args[0].multiple) || (!multipleIsSet && defaults.multiple),
// same for content
contentIsSet = args[0] && args[0].content !== undefined,
content = (contentIsSet && args[0].content) || (!contentIsSet && defaults.content),
// same for contentCloning
contentCloningIsSet = args[0] && args[0].contentCloning !== undefined,
contentCloning =
(contentCloningIsSet && args[0].contentCloning)
|| (!contentCloningIsSet && defaults.contentCloning),
// same for debug
debugIsSet = args[0] && args[0].debug !== undefined,
debug = (debugIsSet && args[0].debug) || (!debugIsSet && defaults.debug);
if ( this.length > 1
&& ( content instanceof $
|| (typeof content == 'object' && content != null && content.tagName)
)
&& !contentCloning
&& debug
) {
console.log(contentCloningWarning);
}
// create a tooltipster instance for each element if it doesn't
// already have one or if the multiple option is set, and attach the
// object to it
this.each(function() {
var go = false,
$this = $(this),
ns = $this.data('tooltipster-ns'),
obj = null;
if (!ns) {
go = true;
}
else if (multiple) {
go = true;
}
else if (debug) {
console.log('Tooltipster: one or more tooltips are already attached to the element below. Ignoring.');
console.log(this);
}
if (go) {
obj = new $.Tooltipster(this, args[0]);
// save the reference of the new instance
if (!ns) ns = [];
ns.push(obj.__namespace);
$this.data('tooltipster-ns', ns);
// save the instance itself
$this.data(obj.__namespace, obj);
// call our constructor custom function.
// we do this here and not in ::init() because we wanted
// the object to be saved in $this.data before triggering
// it
if (obj.__options.functionInit) {
obj.__options.functionInit.call(obj, obj, {
origin: this
});
}
// and now the event, for the plugins and core emitter
obj._trigger('init');
}
$.tooltipster.__instancesLatestArr.push(obj);
});
return this;
}
}
};
// Utilities
/**
* A class to check if a tooltip can fit in given dimensions
*
* @param {object} $tooltip The jQuery wrapped tooltip element, or a clone of it
*/
function Ruler($tooltip) {
// list of instance variables
this.$container;
this.constraints = null;
this.__$tooltip;
this.__init($tooltip);
}
Ruler.prototype = {
/**
* Move the tooltip into an invisible div that does not allow overflow to make
* size tests. Note: the tooltip may or may not be attached to the DOM at the
* moment this method is called, it does not matter.
*
* @param {object} $tooltip The object to test. May be just a clone of the
* actual tooltip.
* @private
*/
__init: function($tooltip) {
this.__$tooltip = $tooltip;
this.__$tooltip
.css({
// for some reason we have to specify top and left 0
left: 0,
// any overflow will be ignored while measuring
overflow: 'hidden',
// positions at (0,0) without the div using 100% of the available width
position: 'absolute',
top: 0
})
// overflow must be auto during the test. We re-set this in case
// it were modified by the user
.find('.tooltipster-content')
.css('overflow', 'auto');
this.$container = $('<div class="tooltipster-ruler"></div>')
.append(this.__$tooltip)
.appendTo(env.window.document.body);
},
/**
* Force the browser to redraw (re-render) the tooltip immediately. This is required
* when you changed some CSS properties and need to make something with it
* immediately, without waiting for the browser to redraw at the end of instructions.
*
* @see http://stackoverflow.com/questions/3485365/how-can-i-force-webkit-to-redraw-repaint-to-propagate-style-changes
* @private
*/
__forceRedraw: function() {
// note: this would work but for Webkit only
//this.__$tooltip.close();
//this.__$tooltip[0].offsetHeight;
//this.__$tooltip.open();
// works in FF too
var $p = this.__$tooltip.parent();
this.__$tooltip.detach();
this.__$tooltip.appendTo($p);
},
/**
* Set maximum dimensions for the tooltip. A call to ::measure afterwards
* will tell us if the content overflows or if it's ok
*
* @param {int} width
* @param {int} height
* @return {Ruler}
* @public
*/
constrain: function(width, height) {
this.constraints = {
width: width,
height: height
};
this.__$tooltip.css({
// we disable display:flex, otherwise the content would overflow without
// creating horizontal scrolling (which we need to detect).
display: 'block',
// reset any previous height
height: '',
// we'll check if horizontal scrolling occurs
overflow: 'auto',
// we'll set the width and see what height is generated and if there
// is horizontal overflow
width: width
});
return this;
},
/**
* Reset the tooltip content overflow and remove the test container
*
* @returns {Ruler}
* @public
*/
destroy: function() {
// in case the element was not a clone
this.__$tooltip
.detach()
.find('.tooltipster-content')
.css({
// reset to CSS value
display: '',
overflow: ''
});
this.$container.remove();
},
/**
* Removes any constraints
*
* @returns {Ruler}
* @public
*/
free: function() {
this.constraints = null;
// reset to natural size
this.__$tooltip.css({
display: '',
height: '',
overflow: 'visible',
width: ''
});
return this;
},
/**
* Returns the size of the tooltip. When constraints are applied, also returns
* whether the tooltip fits in the provided dimensions.
* The idea is to see if the new height is small enough and if the content does
* not overflow horizontally.
*
* @param {int} width
* @param {int} height
* @returns {object} An object with a bool `fits` property and a `size` property
* @public
*/
measure: function() {
this.__forceRedraw();
var tooltipBcr = this.__$tooltip[0].getBoundingClientRect(),
result = { size: {
// bcr.width/height are not defined in IE8- but in this
// case, bcr.right/bottom will have the same value
// except in iOS 8+ where tooltipBcr.bottom/right are wrong
// after scrolling for reasons yet to be determined.
// tooltipBcr.top/left might not be 0, see issue #514
height: tooltipBcr.height || (tooltipBcr.bottom - tooltipBcr.top),
width: tooltipBcr.width || (tooltipBcr.right - tooltipBcr.left)
}};
if (this.constraints) {
// note: we used to use offsetWidth instead of boundingRectClient but
// it returned rounded values, causing issues with sub-pixel layouts.
// note2: noticed that the bcrWidth of text content of a div was once
// greater than the bcrWidth of its container by 1px, causing the final
// tooltip box to be too small for its content. However, evaluating
// their widths one against the other (below) surprisingly returned
// equality. Happened only once in Chrome 48, was not able to reproduce
// => just having fun with float position values...
var $content = this.__$tooltip.find('.tooltipster-content'),
height = this.__$tooltip.outerHeight(),
contentBcr = $content[0].getBoundingClientRect(),
fits = {
height: height <= this.constraints.height,
width: (
// this condition accounts for min-width property that
// may apply
tooltipBcr.width <= this.constraints.width
// the -1 is here because scrollWidth actually returns
// a rounded value, and may be greater than bcr.width if
// it was rounded up. This may cause an issue for contents
// which actually really overflow by 1px or so, but that
// should be rare. Not sure how to solve this efficiently.
// See http://blogs.msdn.com/b/ie/archive/2012/02/17/sub-pixel-rendering-and-the-css-object-model.aspx
&& contentBcr.width >= $content[0].scrollWidth - 1
)
};
result.fits = fits.height && fits.width;
}
// old versions of IE get the width wrong for some reason and it causes
// the text to be broken to a new line, so we round it up. If the width
// is the width of the screen though, we can assume it is accurate.
if ( env.IE
&& env.IE <= 11
&& result.size.width !== env.window.document.documentElement.clientWidth
) {
result.size.width = Math.ceil(result.size.width) + 1;
}
return result;
}
};
// quick & dirty compare function, not bijective nor multidimensional
function areEqual(a,b) {
var same = true;
$.each(a, function(i, _) {
if (b[i] === undefined || a[i] !== b[i]) {
same = false;
return false;
}
});
return same;
}
/**
* A fast function to check if an element is still in the DOM. It
* tries to use an id as ids are indexed by the browser, or falls
* back to jQuery's `contains` method. May fail if two elements
* have the same id, but so be it
*
* @param {object} $obj A jQuery-wrapped HTML element
* @return {boolean}
*/
function bodyContains($obj) {
var id = $obj.attr('id'),
el = id ? env.window.document.getElementById(id) : null;
// must also check that the element with the id is the one we want
return el ? el === $obj[0] : $.contains(env.window.document.body, $obj[0]);
}
// detect IE versions for dirty fixes
var uA = navigator.userAgent.toLowerCase();
if (uA.indexOf('msie') != -1) env.IE = parseInt(uA.split('msie')[1]);
else if (uA.toLowerCase().indexOf('trident') !== -1 && uA.indexOf(' rv:11') !== -1) env.IE = 11;
else if (uA.toLowerCase().indexOf('edge/') != -1) env.IE = parseInt(uA.toLowerCase().split('edge/')[1]);
// detecting support for CSS transitions
function transitionSupport() {
// env.window is not defined yet when this is called
if (!win) return false;
var b = win.document.body || win.document.documentElement,
s = b.style,
p = 'transition',
v = ['Moz', 'Webkit', 'Khtml', 'O', 'ms'];
if (typeof s[p] == 'string') { return true; }
p = p.charAt(0).toUpperCase() + p.substr(1);
for (var i=0; i<v.length; i++) {
if (typeof s[v[i] + p] == 'string') { return true; }
}
return false;
}
// we'll return jQuery for plugins not to have to declare it as a dependency,
// but it's done by a build task since it should be included only once at the
// end when we concatenate the main file with a plugin
// sideTip is Tooltipster's default plugin.
// This file will be UMDified by a build task.
var pluginName = 'tooltipster.sideTip';
$.tooltipster._plugin({
name: pluginName,
instance: {
/**
* Defaults are provided as a function for an easy override by inheritance
*
* @return {object} An object with the defaults options
* @private
*/
__defaults: function() {
return {
// if the tooltip should display an arrow that points to the origin
arrow: true,
// the distance in pixels between the tooltip and the origin
distance: 6,
// allows to easily change the position of the tooltip
functionPosition: null,
maxWidth: null,
// used to accomodate the arrow of tooltip if there is one.
// First to make sure that the arrow target is not too close
// to the edge of the tooltip, so the arrow does not overflow
// the tooltip. Secondly when we reposition the tooltip to
// make sure that it's positioned in such a way that the arrow is
// still pointing at the target (and not a few pixels beyond it).
// It should be equal to or greater than half the width of
// the arrow (by width we mean the size of the side which touches
// the side of the tooltip).
minIntersection: 16,
minWidth: 0,
// deprecated in 4.0.0. Listed for _optionsExtract to pick it up
position: null,
side: 'top',
// set to false to position the tooltip relatively to the document rather
// than the window when we open it
viewportAware: true
};
},
/**
* Run once: at instantiation of the plugin
*
* @param {object} instance The tooltipster object that instantiated this plugin
* @private
*/
__init: function(instance) {
var self = this;
// list of instance variables
self.__instance = instance;
self.__namespace = 'tooltipster-sideTip-'+ Math.round(Math.random()*1000000);
self.__previousState = 'closed';
self.__options;
// initial formatting
self.__optionsFormat();
self.__instance._on('state.'+ self.__namespace, function(event) {
if (event.state == 'closed') {
self.__close();
}
else if (event.state == 'appearing' && self.__previousState == 'closed') {
self.__create();
}
self.__previousState = event.state;
});
// reformat every time the options are changed
self.__instance._on('options.'+ self.__namespace, function() {
self.__optionsFormat();
});
self.__instance._on('reposition.'+ self.__namespace, function(e) {
self.__reposition(e.event, e.helper);
});
},
/**
* Called when the tooltip has closed
*
* @private
*/
__close: function() {
// detach our content object first, so the next jQuery's remove()
// call does not unbind its event handlers
if (this.__instance.content() instanceof $) {
this.__instance.content().detach();
}
// remove the tooltip from the DOM
this.__instance._$tooltip.remove();
this.__instance._$tooltip = null;
},
/**
* Creates the HTML element of the tooltip.
*
* @private
*/
__create: function() {
// note: we wrap with a .tooltipster-box div to be able to set a margin on it
// (.tooltipster-base must not have one)
var $html = $(
'<div class="tooltipster-base tooltipster-sidetip">' +
'<div class="tooltipster-box">' +
'<div class="tooltipster-content"></div>' +
'</div>' +
'<div class="tooltipster-arrow">' +
'<div class="tooltipster-arrow-uncropped">' +
'<div class="tooltipster-arrow-border"></div>' +
'<div class="tooltipster-arrow-background"></div>' +
'</div>' +
'</div>' +
'</div>'
);
// hide arrow if asked
if (!this.__options.arrow) {
$html
.find('.tooltipster-box')
.css('margin', 0)
.end()
.find('.tooltipster-arrow')
.hide();
}
// apply min/max width if asked
if (this.__options.minWidth) {
$html.css('min-width', this.__options.minWidth + 'px');
}
if (this.__options.maxWidth) {
$html.css('max-width', this.__options.maxWidth + 'px');
}
this.__instance._$tooltip = $html;
// tell the instance that the tooltip element has been created
this.__instance._trigger('created');
},
/**
* Used when the plugin is to be unplugged
*
* @private
*/
__destroy: function() {
this.__instance._off('.'+ self.__namespace);
},
/**
* (Re)compute this.__options from the options declared to the instance
*
* @private
*/
__optionsFormat: function() {
var self = this;
// get the options
self.__options = self.__instance._optionsExtract(pluginName, self.__defaults());
// for backward compatibility, deprecated in v4.0.0
if (self.__options.position) {
self.__options.side = self.__options.position;
}
// options formatting
// format distance as a four-cell array if it ain't one yet and then make
// it an object with top/bottom/left/right properties
if (typeof self.__options.distance != 'object') {
self.__options.distance = [self.__options.distance];
}
if (self.__options.distance.length < 4) {
if (self.__options.distance[1] === undefined) self.__options.distance[1] = self.__options.distance[0];
if (self.__options.distance[2] === undefined) self.__options.distance[2] = self.__options.distance[0];
if (self.__options.distance[3] === undefined) self.__options.distance[3] = self.__options.distance[1];
}
self.__options.distance = {
top: self.__options.distance[0],
right: self.__options.distance[1],
bottom: self.__options.distance[2],
left: self.__options.distance[3]
};
// let's transform:
// 'top' into ['top', 'bottom', 'right', 'left']
// 'right' into ['right', 'left', 'top', 'bottom']
// 'bottom' into ['bottom', 'top', 'right', 'left']
// 'left' into ['left', 'right', 'top', 'bottom']
if (typeof self.__options.side == 'string') {
var opposites = {
'top': 'bottom',
'right': 'left',
'bottom': 'top',
'left': 'right'
};
self.__options.side = [self.__options.side, opposites[self.__options.side]];
if (self.__options.side[0] == 'left' || self.__options.side[0] == 'right') {
self.__options.side.push('top', 'bottom');
}
else {
self.__options.side.push('right', 'left');
}
}
// misc
// disable the arrow in IE6 unless the arrow option was explicitly set to true
if ( $.tooltipster._env.IE === 6
&& self.__options.arrow !== true
) {
self.__options.arrow = false;
}
},
/**
* This method must compute and set the positioning properties of the
* tooltip (left, top, width, height, etc.). It must also make sure the
* tooltip is eventually appended to its parent (since the element may be
* detached from the DOM at the moment the method is called).
*
* We'll evaluate positioning scenarios to find which side can contain the
* tooltip in the best way. We'll consider things relatively to the window
* (unless the user asks not to), then to the document (if need be, or if the
* user explicitly requires the tests to run on the document). For each
* scenario, measures are taken, allowing us to know how well the tooltip
* is going to fit. After that, a sorting function will let us know what
* the best scenario is (we also allow the user to choose his favorite
* scenario by using an event).
*
* @param {object} helper An object that contains variables that plugin
* creators may find useful (see below)
* @param {object} helper.geo An object with many layout properties
* about objects of interest (window, document, origin). This should help
* plugin users compute the optimal position of the tooltip
* @private
*/
__reposition: function(event, helper) {
var self = this,
finalResult,
// to know where to put the tooltip, we need to know on which point
// of the x or y axis we should center it. That coordinate is the target
targets = self.__targetFind(helper),
testResults = [];
// make sure the tooltip is detached while we make tests on a clone
self.__instance._$tooltip.detach();
// we could actually provide the original element to the Ruler and
// not a clone, but it just feels right to keep it out of the
// machinery.
var $clone = self.__instance._$tooltip.clone(),
// start position tests session
ruler = $.tooltipster._getRuler($clone),
satisfied = false,
animation = self.__instance.option('animation');
// an animation class could contain properties that distort the size
if (animation) {
$clone.removeClass('tooltipster-'+ animation);
}
// start evaluating scenarios
$.each(['window', 'document'], function(i, container) {
var takeTest = null;
// let the user decide to keep on testing or not
self.__instance._trigger({
container: container,
helper: helper,
satisfied: satisfied,
takeTest: function(bool) {
takeTest = bool;
},
results: testResults,
type: 'positionTest'
});
if ( takeTest == true
|| ( takeTest != false
&& satisfied == false
// skip the window scenarios if asked. If they are reintegrated by
// the callback of the positionTest event, they will have to be
// excluded using the callback of positionTested
&& (container != 'window' || self.__options.viewportAware)
)
) {
// for each allowed side
for (var i=0; i < self.__options.side.length; i++) {
var distance = {
horizontal: 0,
vertical: 0
},
side = self.__options.side[i];
if (side == 'top' || side == 'bottom') {
distance.vertical = self.__options.distance[side];
}
else {
distance.horizontal = self.__options.distance[side];
}
// this may have an effect on the size of the tooltip if there are css
// rules for the arrow or something else
self.__sideChange($clone, side);
$.each(['natural', 'constrained'], function(i, mode) {
takeTest = null;
// emit an event on the instance
self.__instance._trigger({
container: container,
event: event,
helper: helper,
mode: mode,
results: testResults,
satisfied: satisfied,
side: side,
takeTest: function(bool) {
takeTest = bool;
},
type: 'positionTest'
});
if ( takeTest == true
|| ( takeTest != false
&& satisfied == false
)
) {
var testResult = {
container: container,
// we let the distance as an object here, it can make things a little easier
// during the user's calculations at positionTest/positionTested
distance: distance,
// whether the tooltip can fit in the size of the viewport (does not mean
// that we'll be able to make it initially entirely visible, see 'whole')
fits: null,
mode: mode,
outerSize: null,
side: side,
size: null,
target: targets[side],
// check if the origin has enough surface on screen for the tooltip to
// aim at it without overflowing the viewport (this is due to the thickness
// of the arrow represented by the minIntersection length).
// If not, the tooltip will have to be partly or entirely off screen in
// order to stay docked to the origin. This value will stay null when the
// container is the document, as it is not relevant
whole: null
};
// get the size of the tooltip with or without size constraints
var rulerConfigured = (mode == 'natural') ?
ruler.free() :
ruler.constrain(
helper.geo.available[container][side].width - distance.horizontal,
helper.geo.available[container][side].height - distance.vertical
),
rulerResults = rulerConfigured.measure();
testResult.size = rulerResults.size;
testResult.outerSize = {
height: rulerResults.size.height + distance.vertical,
width: rulerResults.size.width + distance.horizontal
};
if (mode == 'natural') {
if( helper.geo.available[container][side].width >= testResult.outerSize.width
&& helper.geo.available[container][side].height >= testResult.outerSize.height
) {
testResult.fits = true;
}
else {
testResult.fits = false;
}
}
else {
testResult.fits = rulerResults.fits;
}
if (container == 'window') {
if (!testResult.fits) {
testResult.whole = false;
}
else {
if (side == 'top' || side == 'bottom') {
testResult.whole = (
helper.geo.origin.windowOffset.right >= self.__options.minIntersection
&& helper.geo.window.size.width - helper.geo.origin.windowOffset.left >= self.__options.minIntersection
);
}
else {
testResult.whole = (
helper.geo.origin.windowOffset.bottom >= self.__options.minIntersection
&& helper.geo.window.size.height - helper.geo.origin.windowOffset.top >= self.__options.minIntersection
);
}
}
}
testResults.push(testResult);
// we don't need to compute more positions if we have one fully on screen
if (testResult.whole) {
satisfied = true;
}
else {
// don't run the constrained test unless the natural width was greater
// than the available width, otherwise it's pointless as we know it
// wouldn't fit either
if ( testResult.mode == 'natural'
&& ( testResult.fits
|| testResult.size.width <= helper.geo.available[container][side].width
)
) {
return false;
}
}
}
});
}
}
});
// the user may eliminate the unwanted scenarios from testResults, but he's
// not supposed to alter them at this point. functionPosition and the
// position event serve that purpose.
self.__instance._trigger({
edit: function(r) {
testResults = r;
},
event: event,
helper: helper,
results: testResults,
type: 'positionTested'
});
/**
* Sort the scenarios to find the favorite one.
*
* The favorite scenario is when we can fully display the tooltip on screen,
* even if it means that the middle of the tooltip is no longer centered on
* the middle of the origin (when the origin is near the edge of the screen
* or even partly off screen). We want the tooltip on the preferred side,
* even if it means that we have to use a constrained size rather than a
* natural one (as long as it fits). When the origin is off screen at the top
* the tooltip will be positioned at the bottom (if allowed), if the origin
* is off screen on the right, it will be positioned on the left, etc.
* If there are no scenarios where the tooltip can fit on screen, or if the
* user does not want the tooltip to fit on screen (viewportAware == false),
* we fall back to the scenarios relative to the document.
*
* When the tooltip is bigger than the viewport in either dimension, we stop
* looking at the window scenarios and consider the document scenarios only,
* with the same logic to find on which side it would fit best.
*
* If the tooltip cannot fit the document on any side, we force it at the
* bottom, so at least the user can scroll to see it.
*/
testResults.sort(function(a, b) {
// best if it's whole (the tooltip fits and adapts to the viewport)
if (a.whole && !b.whole) {
return -1;
}
else if (!a.whole && b.whole) {
return 1;
}
else if (a.whole && b.whole) {
var ai = self.__options.side.indexOf(a.side),
bi = self.__options.side.indexOf(b.side);
// use the user's sides fallback array
if (ai < bi) {
return -1;
}
else if (ai > bi) {
return 1;
}
else {
// will be used if the user forced the tests to continue
return a.mode == 'natural' ? -1 : 1;
}
}
else {
// better if it fits
if (a.fits && !b.fits) {
return -1;
}
else if (!a.fits && b.fits) {
return 1;
}
else if (a.fits && b.fits) {
var ai = self.__options.side.indexOf(a.side),
bi = self.__options.side.indexOf(b.side);
// use the user's sides fallback array
if (ai < bi) {
return -1;
}
else if (ai > bi) {
return 1;
}
else {
// will be used if the user forced the tests to continue
return a.mode == 'natural' ? -1 : 1;
}
}
else {
// if everything failed, this will give a preference to the case where
// the tooltip overflows the document at the bottom
if ( a.container == 'document'
&& a.side == 'bottom'
&& a.mode == 'natural'
) {
return -1;
}
else {
return 1;
}
}
}
});
finalResult = testResults[0];
// now let's find the coordinates of the tooltip relatively to the window
finalResult.coord = {};
switch (finalResult.side) {
case 'left':
case 'right':
finalResult.coord.top = Math.floor(finalResult.target - finalResult.size.height / 2);
break;
case 'bottom':
case 'top':
finalResult.coord.left = Math.floor(finalResult.target - finalResult.size.width / 2);
break;
}
switch (finalResult.side) {
case 'left':
finalResult.coord.left = helper.geo.origin.windowOffset.left - finalResult.outerSize.width;
break;
case 'right':
finalResult.coord.left = helper.geo.origin.windowOffset.right + finalResult.distance.horizontal;
break;
case 'top':
finalResult.coord.top = helper.geo.origin.windowOffset.top - finalResult.outerSize.height;
break;
case 'bottom':
finalResult.coord.top = helper.geo.origin.windowOffset.bottom + finalResult.distance.vertical;
break;
}
// if the tooltip can potentially be contained within the viewport dimensions
// and that we are asked to make it fit on screen
if (finalResult.container == 'window') {
// if the tooltip overflows the viewport, we'll move it accordingly (then it will
// not be centered on the middle of the origin anymore). We only move horizontally
// for top and bottom tooltips and vice versa.
if (finalResult.side == 'top' || finalResult.side == 'bottom') {
// if there is an overflow on the left
if (finalResult.coord.left < 0) {
// prevent the overflow unless the origin itself gets off screen (minus the
// margin needed to keep the arrow pointing at the target)
if (helper.geo.origin.windowOffset.right - this.__options.minIntersection >= 0) {
finalResult.coord.left = 0;
}
else {
finalResult.coord.left = helper.geo.origin.windowOffset.right - this.__options.minIntersection - 1;
}
}
// or an overflow on the right
else if (finalResult.coord.left > helper.geo.window.size.width - finalResult.size.width) {
if (helper.geo.origin.windowOffset.left + this.__options.minIntersection <= helper.geo.window.size.width) {
finalResult.coord.left = helper.geo.window.size.width - finalResult.size.width;
}
else {
finalResult.coord.left = helper.geo.origin.windowOffset.left + this.__options.minIntersection + 1 - finalResult.size.width;
}
}
}
else {
// overflow at the top
if (finalResult.coord.top < 0) {
if (helper.geo.origin.windowOffset.bottom - this.__options.minIntersection >= 0) {
finalResult.coord.top = 0;
}
else {
finalResult.coord.top = helper.geo.origin.windowOffset.bottom - this.__options.minIntersection - 1;
}
}
// or at the bottom
else if (finalResult.coord.top > helper.geo.window.size.height - finalResult.size.height) {
if (helper.geo.origin.windowOffset.top + this.__options.minIntersection <= helper.geo.window.size.height) {
finalResult.coord.top = helper.geo.window.size.height - finalResult.size.height;
}
else {
finalResult.coord.top = helper.geo.origin.windowOffset.top + this.__options.minIntersection + 1 - finalResult.size.height;
}
}
}
}
else {
// there might be overflow here too but it's easier to handle. If there has
// to be an overflow, we'll make sure it's on the right side of the screen
// (because the browser will extend the document size if there is an overflow
// on the right, but not on the left). The sort function above has already
// made sure that a bottom document overflow is preferred to a top overflow,
// so we don't have to care about it.
// if there is an overflow on the right
if (finalResult.coord.left > helper.geo.window.size.width - finalResult.size.width) {
// this may actually create on overflow on the left but we'll fix it in a sec
finalResult.coord.left = helper.geo.window.size.width - finalResult.size.width;
}
// if there is an overflow on the left
if (finalResult.coord.left < 0) {
// don't care if it overflows the right after that, we made our best
finalResult.coord.left = 0;
}
}
// submit the positioning proposal to the user function which may choose to change
// the side, size and/or the coordinates
// first, set the rules that corresponds to the proposed side: it may change
// the size of the tooltip, and the custom functionPosition may want to detect the
// size of something before making a decision. So let's make things easier for the
// implementor
self.__sideChange($clone, finalResult.side);
// add some variables to the helper
helper.tooltipClone = $clone[0];
helper.tooltipParent = self.__instance.option('parent').parent[0];
// move informative values to the helper
helper.mode = finalResult.mode;
helper.whole = finalResult.whole;
// add some variables to the helper for the functionPosition callback (these
// will also be added to the event fired by self.__instance._trigger but that's
// ok, we're just being consistent)
helper.origin = self.__instance._$origin[0];
helper.tooltip = self.__instance._$tooltip[0];
// leave only the actionable values in there for functionPosition
delete finalResult.container;
delete finalResult.fits;
delete finalResult.mode;
delete finalResult.outerSize;
delete finalResult.whole;
// keep only the distance on the relevant side, for clarity
finalResult.distance = finalResult.distance.horizontal || finalResult.distance.vertical;
// beginners may not be comfortable with the concept of editing the object
// passed by reference, so we provide an edit function and pass a clone
var finalResultClone = $.extend(true, {}, finalResult);
// emit an event on the instance
self.__instance._trigger({
edit: function(result) {
finalResult = result;
},
event: event,
helper: helper,
position: finalResultClone,
type: 'position'
});
if (self.__options.functionPosition) {
var result = self.__options.functionPosition.call(self, self.__instance, helper, finalResultClone);
if (result) finalResult = result;
}
// end the positioning tests session (the user might have had a
// use for it during the position event, now it's over)
ruler.destroy();
// compute the position of the target relatively to the tooltip root
// element so we can place the arrow and make the needed adjustments
var arrowCoord,
maxVal;
if (finalResult.side == 'top' || finalResult.side == 'bottom') {
arrowCoord = {
prop: 'left',
val: finalResult.target - finalResult.coord.left
};
maxVal = finalResult.size.width - this.__options.minIntersection;
}
else {
arrowCoord = {
prop: 'top',
val: finalResult.target - finalResult.coord.top
};
maxVal = finalResult.size.height - this.__options.minIntersection;
}
// cannot lie beyond the boundaries of the tooltip, minus the
// arrow margin
if (arrowCoord.val < this.__options.minIntersection) {
arrowCoord.val = this.__options.minIntersection;
}
else if (arrowCoord.val > maxVal) {
arrowCoord.val = maxVal;
}
var originParentOffset;
// let's convert the window-relative coordinates into coordinates relative to the
// future positioned parent that the tooltip will be appended to
if (helper.geo.origin.fixedLineage) {
// same as windowOffset when the position is fixed
originParentOffset = helper.geo.origin.windowOffset;
}
else {
// this assumes that the parent of the tooltip is located at
// (0, 0) in the document, typically like when the parent is
// <body>.
// If we ever allow other types of parent, .tooltipster-ruler
// will have to be appended to the parent to inherit css style
// values that affect the display of the text and such.
originParentOffset = {
left: helper.geo.origin.windowOffset.left + helper.geo.window.scroll.left,
top: helper.geo.origin.windowOffset.top + helper.geo.window.scroll.top
};
}
finalResult.coord = {
left: originParentOffset.left + (finalResult.coord.left - helper.geo.origin.windowOffset.left),
top: originParentOffset.top + (finalResult.coord.top - helper.geo.origin.windowOffset.top)
};
// set position values on the original tooltip element
self.__sideChange(self.__instance._$tooltip, finalResult.side);
if (helper.geo.origin.fixedLineage) {
self.__instance._$tooltip
.css('position', 'fixed');
}
else {
// CSS default
self.__instance._$tooltip
.css('position', '');
}
self.__instance._$tooltip
.css({
left: finalResult.coord.left,
top: finalResult.coord.top,
// we need to set a size even if the tooltip is in its natural size
// because when the tooltip is positioned beyond the width of the body
// (which is by default the width of the window; it will happen when
// you scroll the window horizontally to get to the origin), its text
// content will otherwise break lines at each word to keep up with the
// body overflow strategy.
height: finalResult.size.height,
width: finalResult.size.width
})
.find('.tooltipster-arrow')
.css({
'left': '',
'top': ''
})
.css(arrowCoord.prop, arrowCoord.val);
// append the tooltip HTML element to its parent
self.__instance._$tooltip.appendTo(self.__instance.option('parent'));
self.__instance._trigger({
type: 'repositioned',
event: event,
position: finalResult
});
},
/**
* Make whatever modifications are needed when the side is changed. This has
* been made an independant method for easy inheritance in custom plugins based
* on this default plugin.
*
* @param {object} $obj
* @param {string} side
* @private
*/
__sideChange: function($obj, side) {
$obj
.removeClass('tooltipster-bottom')
.removeClass('tooltipster-left')
.removeClass('tooltipster-right')
.removeClass('tooltipster-top')
.addClass('tooltipster-'+ side);
},
/**
* Returns the target that the tooltip should aim at for a given side.
* The calculated value is a distance from the edge of the window
* (left edge for top/bottom sides, top edge for left/right side). The
* tooltip will be centered on that position and the arrow will be
* positioned there (as much as possible).
*
* @param {object} helper
* @return {integer}
* @private
*/
__targetFind: function(helper) {
var target = {},
rects = this.__instance._$origin[0].getClientRects();
// these lines fix a Chrome bug (issue #491)
if (rects.length > 1) {
var opacity = this.__instance._$origin.css('opacity');
if(opacity == 1) {
this.__instance._$origin.css('opacity', 0.99);
rects = this.__instance._$origin[0].getClientRects();
this.__instance._$origin.css('opacity', 1);
}
}
// by default, the target will be the middle of the origin
if (rects.length < 2) {
target.top = Math.floor(helper.geo.origin.windowOffset.left + (helper.geo.origin.size.width / 2));
target.bottom = target.top;
target.left = Math.floor(helper.geo.origin.windowOffset.top + (helper.geo.origin.size.height / 2));
target.right = target.left;
}
// if multiple client rects exist, the element may be text split
// up into multiple lines and the middle of the origin may not be
// best option anymore. We need to choose the best target client rect
else {
// top: the first
var targetRect = rects[0];
target.top = Math.floor(targetRect.left + (targetRect.right - targetRect.left) / 2);
// right: the middle line, rounded down in case there is an even
// number of lines (looks more centered => check out the
// demo with 4 split lines)
if (rects.length > 2) {
targetRect = rects[Math.ceil(rects.length / 2) - 1];
}
else {
targetRect = rects[0];
}
target.right = Math.floor(targetRect.top + (targetRect.bottom - targetRect.top) / 2);
// bottom: the last
targetRect = rects[rects.length - 1];
target.bottom = Math.floor(targetRect.left + (targetRect.right - targetRect.left) / 2);
// left: the middle line, rounded up
if (rects.length > 2) {
targetRect = rects[Math.ceil((rects.length + 1) / 2) - 1];
}
else {
targetRect = rects[rects.length - 1];
}
target.left = Math.floor(targetRect.top + (targetRect.bottom - targetRect.top) / 2);
}
return target;
}
}
});
/* a build task will add "return $;" here */
return $;
}));
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