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index.js
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index.js
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/*!
* # Semantic UI 2.5.0 - Popup
* http://github.com/semantic-org/semantic-ui/
*
*
* Released under the MIT license
* http://opensource.org/licenses/MIT
*
*/
;(function ($, window, document, undefined) {
'use strict';
window = (typeof window != 'undefined' && window.Math == Math)
? window
: (typeof self != 'undefined' && self.Math == Math)
? self
: Function('return this')()
;
var _module = module;
module.exports = function(parameters) {
var
$allModules = $(this),
$document = $(document),
$window = $(window),
$body = $('body'),
moduleSelector = $allModules.selector || '',
hasTouch = (true),
time = new Date().getTime(),
performance = [],
query = arguments[0],
methodInvoked = (typeof query == 'string'),
queryArguments = [].slice.call(arguments, 1),
returnedValue
;
$allModules
.each(function() {
var
settings = ( $.isPlainObject(parameters) )
? $.extend(true, {}, _module.exports.settings, parameters)
: $.extend({}, _module.exports.settings),
selector = settings.selector,
className = settings.className,
error = settings.error,
metadata = settings.metadata,
namespace = settings.namespace,
eventNamespace = '.' + settings.namespace,
moduleNamespace = 'module-' + namespace,
$module = $(this),
$context = $(settings.context),
$scrollContext = $(settings.scrollContext),
$boundary = $(settings.boundary),
$target = (settings.target)
? $(settings.target)
: $module,
$popup,
$offsetParent,
searchDepth = 0,
triedPositions = false,
openedWithTouch = false,
element = this,
instance = $module.data(moduleNamespace),
documentObserver,
elementNamespace,
id,
module
;
module = {
// binds events
initialize: function() {
module.debug('Initializing', $module);
module.createID();
module.bind.events();
if(!module.exists() && settings.preserve) {
module.create();
}
if(settings.observeChanges) {
module.observeChanges();
}
module.instantiate();
},
instantiate: function() {
module.verbose('Storing instance', module);
instance = module;
$module
.data(moduleNamespace, instance)
;
},
observeChanges: function() {
if('MutationObserver' in window) {
documentObserver = new MutationObserver(module.event.documentChanged);
documentObserver.observe(document, {
childList : true,
subtree : true
});
module.debug('Setting up mutation observer', documentObserver);
}
},
refresh: function() {
if(settings.popup) {
$popup = $(settings.popup).eq(0);
}
else {
if(settings.inline) {
$popup = $target.nextAll(selector.popup).eq(0);
settings.popup = $popup;
}
}
if(settings.popup) {
$popup.addClass(className.loading);
$offsetParent = module.get.offsetParent();
$popup.removeClass(className.loading);
if(settings.movePopup && module.has.popup() && module.get.offsetParent($popup)[0] !== $offsetParent[0]) {
module.debug('Moving popup to the same offset parent as target');
$popup
.detach()
.appendTo($offsetParent)
;
}
}
else {
$offsetParent = (settings.inline)
? module.get.offsetParent($target)
: module.has.popup()
? module.get.offsetParent($popup)
: $body
;
}
if( $offsetParent.is('html') && $offsetParent[0] !== $body[0] ) {
module.debug('Setting page as offset parent');
$offsetParent = $body;
}
if( module.get.variation() ) {
module.set.variation();
}
},
reposition: function() {
module.refresh();
module.set.position();
},
destroy: function() {
module.debug('Destroying previous module');
if(documentObserver) {
documentObserver.disconnect();
}
// remove element only if was created dynamically
if($popup && !settings.preserve) {
module.removePopup();
}
// clear all timeouts
clearTimeout(module.hideTimer);
clearTimeout(module.showTimer);
// remove events
module.unbind.close();
module.unbind.events();
$module
.removeData(moduleNamespace)
;
},
event: {
start: function(event) {
var
delay = ($.isPlainObject(settings.delay))
? settings.delay.show
: settings.delay
;
clearTimeout(module.hideTimer);
if(!openedWithTouch) {
module.showTimer = setTimeout(module.show, delay);
}
},
end: function() {
var
delay = ($.isPlainObject(settings.delay))
? settings.delay.hide
: settings.delay
;
clearTimeout(module.showTimer);
module.hideTimer = setTimeout(module.hide, delay);
},
touchstart: function(event) {
openedWithTouch = true;
module.show();
},
resize: function() {
if( module.is.visible() ) {
module.set.position();
}
},
documentChanged: function(mutations) {
[].forEach.call(mutations, function(mutation) {
if(mutation.removedNodes) {
[].forEach.call(mutation.removedNodes, function(node) {
if(node == element || $(node).find(element).length > 0) {
module.debug('Element removed from DOM, tearing down events');
module.destroy();
}
});
}
});
},
hideGracefully: function(event) {
var
$target = $(event.target),
isInDOM = $.contains(document.documentElement, event.target),
inPopup = ($target.closest(selector.popup).length > 0)
;
// don't close on clicks inside popup
if(event && !inPopup && isInDOM) {
module.debug('Click occurred outside popup hiding popup');
module.hide();
}
else {
module.debug('Click was inside popup, keeping popup open');
}
}
},
// generates popup html from metadata
create: function() {
var
html = module.get.html(),
title = module.get.title(),
content = module.get.content()
;
if(html || content || title) {
module.debug('Creating pop-up html');
if(!html) {
html = settings.templates.popup({
title : title,
content : content
});
}
$popup = $('<div/>')
.addClass(className.popup)
.data(metadata.activator, $module)
.html(html)
;
if(settings.inline) {
module.verbose('Inserting popup element inline', $popup);
$popup
.insertAfter($module)
;
}
else {
module.verbose('Appending popup element to body', $popup);
$popup
.appendTo( $context )
;
}
module.refresh();
module.set.variation();
if(settings.hoverable) {
module.bind.popup();
}
settings.onCreate.call($popup, element);
}
else if($target.next(selector.popup).length !== 0) {
module.verbose('Pre-existing popup found');
settings.inline = true;
settings.popup = $target.next(selector.popup).data(metadata.activator, $module);
module.refresh();
if(settings.hoverable) {
module.bind.popup();
}
}
else if(settings.popup) {
$(settings.popup).data(metadata.activator, $module);
module.verbose('Used popup specified in settings');
module.refresh();
if(settings.hoverable) {
module.bind.popup();
}
}
else {
module.debug('No content specified skipping display', element);
}
},
createID: function() {
id = (Math.random().toString(16) + '000000000').substr(2, 8);
elementNamespace = '.' + id;
module.verbose('Creating unique id for element', id);
},
// determines popup state
toggle: function() {
module.debug('Toggling pop-up');
if( module.is.hidden() ) {
module.debug('Popup is hidden, showing pop-up');
module.unbind.close();
module.show();
}
else {
module.debug('Popup is visible, hiding pop-up');
module.hide();
}
},
show: function(callback) {
callback = callback || function(){};
module.debug('Showing pop-up', settings.transition);
if(module.is.hidden() && !( module.is.active() && module.is.dropdown()) ) {
if( !module.exists() ) {
module.create();
}
if(settings.onShow.call($popup, element) === false) {
module.debug('onShow callback returned false, cancelling popup animation');
return;
}
else if(!settings.preserve && !settings.popup) {
module.refresh();
}
if( $popup && module.set.position() ) {
module.save.conditions();
if(settings.exclusive) {
module.hideAll();
}
module.animate.show(callback);
}
}
},
hide: function(callback) {
callback = callback || function(){};
if( module.is.visible() || module.is.animating() ) {
if(settings.onHide.call($popup, element) === false) {
module.debug('onHide callback returned false, cancelling popup animation');
return;
}
module.remove.visible();
module.unbind.close();
module.restore.conditions();
module.animate.hide(callback);
}
},
hideAll: function() {
$(selector.popup)
.filter('.' + className.popupVisible)
.each(function() {
$(this)
.data(metadata.activator)
.popup('hide')
;
})
;
},
exists: function() {
if(!$popup) {
return false;
}
if(settings.inline || settings.popup) {
return ( module.has.popup() );
}
else {
return ( $popup.closest($context).length >= 1 )
? true
: false
;
}
},
removePopup: function() {
if( module.has.popup() && !settings.popup) {
module.debug('Removing popup', $popup);
$popup.remove();
$popup = undefined;
settings.onRemove.call($popup, element);
}
},
save: {
conditions: function() {
module.cache = {
title: $module.attr('title')
};
if (module.cache.title) {
$module.removeAttr('title');
}
module.verbose('Saving original attributes', module.cache.title);
}
},
restore: {
conditions: function() {
if(module.cache && module.cache.title) {
$module.attr('title', module.cache.title);
module.verbose('Restoring original attributes', module.cache.title);
}
return true;
}
},
supports: {
svg: function() {
return (typeof SVGGraphicsElement === 'undefined');
}
},
animate: {
show: function(callback) {
callback = $.isFunction(callback) ? callback : function(){};
if(settings.transition && $.fn.transition !== undefined && $module.transition('is supported')) {
module.set.visible();
$popup
.transition({
animation : settings.transition + ' in',
queue : false,
debug : settings.debug,
verbose : settings.verbose,
duration : settings.duration,
onComplete : function() {
module.bind.close();
callback.call($popup, element);
settings.onVisible.call($popup, element);
}
})
;
}
else {
module.error(error.noTransition);
}
},
hide: function(callback) {
callback = $.isFunction(callback) ? callback : function(){};
module.debug('Hiding pop-up');
if(settings.onHide.call($popup, element) === false) {
module.debug('onHide callback returned false, cancelling popup animation');
return;
}
if(settings.transition && $.fn.transition !== undefined && $module.transition('is supported')) {
$popup
.transition({
animation : settings.transition + ' out',
queue : false,
duration : settings.duration,
debug : settings.debug,
verbose : settings.verbose,
onComplete : function() {
module.reset();
callback.call($popup, element);
settings.onHidden.call($popup, element);
}
})
;
}
else {
module.error(error.noTransition);
}
}
},
change: {
content: function(html) {
$popup.html(html);
}
},
get: {
html: function() {
$module.removeData(metadata.html);
return $module.data(metadata.html) || settings.html;
},
title: function() {
$module.removeData(metadata.title);
return $module.data(metadata.title) || settings.title;
},
content: function() {
$module.removeData(metadata.content);
return $module.data(metadata.content) || settings.content || $module.attr('title');
},
variation: function() {
$module.removeData(metadata.variation);
return $module.data(metadata.variation) || settings.variation;
},
popup: function() {
return $popup;
},
popupOffset: function() {
return $popup.offset();
},
calculations: function() {
var
$popupOffsetParent = module.get.offsetParent($popup),
targetElement = $target[0],
isWindow = ($boundary[0] == window),
targetPosition = (settings.inline || (settings.popup && settings.movePopup))
? $target.position()
: $target.offset(),
screenPosition = (isWindow)
? { top: 0, left: 0 }
: $boundary.offset(),
calculations = {},
scroll = (isWindow)
? { top: $window.scrollTop(), left: $window.scrollLeft() }
: { top: 0, left: 0},
screen
;
calculations = {
// element which is launching popup
target : {
element : $target[0],
width : $target.outerWidth(),
height : $target.outerHeight(),
top : targetPosition.top,
left : targetPosition.left,
margin : {}
},
// popup itself
popup : {
width : $popup.outerWidth(),
height : $popup.outerHeight()
},
// offset container (or 3d context)
parent : {
width : $offsetParent.outerWidth(),
height : $offsetParent.outerHeight()
},
// screen boundaries
screen : {
top : screenPosition.top,
left : screenPosition.left,
scroll: {
top : scroll.top,
left : scroll.left
},
width : $boundary.width(),
height : $boundary.height()
}
};
// if popup offset context is not same as target, then adjust calculations
if($popupOffsetParent.get(0) !== $offsetParent.get(0)) {
var
popupOffset = $popupOffsetParent.offset()
;
calculations.target.top -= popupOffset.top;
calculations.target.left -= popupOffset.left;
calculations.parent.width = $popupOffsetParent.outerWidth();
calculations.parent.height = $popupOffsetParent.outerHeight();
}
// add in container calcs if fluid
if( settings.setFluidWidth && module.is.fluid() ) {
calculations.container = {
width: $popup.parent().outerWidth()
};
calculations.popup.width = calculations.container.width;
}
// add in margins if inline
calculations.target.margin.top = (settings.inline)
? parseInt( window.getComputedStyle(targetElement).getPropertyValue('margin-top'), 10)
: 0
;
calculations.target.margin.left = (settings.inline)
? module.is.rtl()
? parseInt( window.getComputedStyle(targetElement).getPropertyValue('margin-right'), 10)
: parseInt( window.getComputedStyle(targetElement).getPropertyValue('margin-left'), 10)
: 0
;
// calculate screen boundaries
screen = calculations.screen;
calculations.boundary = {
top : screen.top + screen.scroll.top,
bottom : screen.top + screen.scroll.top + screen.height,
left : screen.left + screen.scroll.left,
right : screen.left + screen.scroll.left + screen.width
};
return calculations;
},
id: function() {
return id;
},
startEvent: function() {
if(settings.on == 'hover') {
return 'mouseenter';
}
else if(settings.on == 'focus') {
return 'focus';
}
return false;
},
scrollEvent: function() {
return 'scroll';
},
endEvent: function() {
if(settings.on == 'hover') {
return 'mouseleave';
}
else if(settings.on == 'focus') {
return 'blur';
}
return false;
},
distanceFromBoundary: function(offset, calculations) {
var
distanceFromBoundary = {},
popup,
boundary
;
calculations = calculations || module.get.calculations();
// shorthand
popup = calculations.popup;
boundary = calculations.boundary;
if(offset) {
distanceFromBoundary = {
top : (offset.top - boundary.top),
left : (offset.left - boundary.left),
right : (boundary.right - (offset.left + popup.width) ),
bottom : (boundary.bottom - (offset.top + popup.height) )
};
module.verbose('Distance from boundaries determined', offset, distanceFromBoundary);
}
return distanceFromBoundary;
},
offsetParent: function($element) {
var
element = ($element !== undefined)
? $element[0]
: $target[0],
parentNode = element.parentNode,
$node = $(parentNode)
;
if(parentNode) {
var
is2D = ($node.css('transform') === 'none'),
isStatic = ($node.css('position') === 'static'),
isBody = $node.is('body')
;
while(parentNode && !isBody && isStatic && is2D) {
parentNode = parentNode.parentNode;
$node = $(parentNode);
is2D = ($node.css('transform') === 'none');
isStatic = ($node.css('position') === 'static');
isBody = $node.is('body');
}
}
return ($node && $node.length > 0)
? $node
: $()
;
},
positions: function() {
return {
'top left' : false,
'top center' : false,
'top right' : false,
'bottom left' : false,
'bottom center' : false,
'bottom right' : false,
'left center' : false,
'right center' : false
};
},
nextPosition: function(position) {
var
positions = position.split(' '),
verticalPosition = positions[0],
horizontalPosition = positions[1],
opposite = {
top : 'bottom',
bottom : 'top',
left : 'right',
right : 'left'
},
adjacent = {
left : 'center',
center : 'right',
right : 'left'
},
backup = {
'top left' : 'top center',
'top center' : 'top right',
'top right' : 'right center',
'right center' : 'bottom right',
'bottom right' : 'bottom center',
'bottom center' : 'bottom left',
'bottom left' : 'left center',
'left center' : 'top left'
},
adjacentsAvailable = (verticalPosition == 'top' || verticalPosition == 'bottom'),
oppositeTried = false,
adjacentTried = false,
nextPosition = false
;
if(!triedPositions) {
module.verbose('All available positions available');
triedPositions = module.get.positions();
}
module.debug('Recording last position tried', position);
triedPositions[position] = true;
if(settings.prefer === 'opposite') {
nextPosition = [opposite[verticalPosition], horizontalPosition];
nextPosition = nextPosition.join(' ');
oppositeTried = (triedPositions[nextPosition] === true);
module.debug('Trying opposite strategy', nextPosition);
}
if((settings.prefer === 'adjacent') && adjacentsAvailable ) {
nextPosition = [verticalPosition, adjacent[horizontalPosition]];
nextPosition = nextPosition.join(' ');
adjacentTried = (triedPositions[nextPosition] === true);
module.debug('Trying adjacent strategy', nextPosition);
}
if(adjacentTried || oppositeTried) {
module.debug('Using backup position', nextPosition);
nextPosition = backup[position];
}
return nextPosition;
}
},
set: {
position: function(position, calculations) {
// exit conditions
if($target.length === 0 || $popup.length === 0) {
module.error(error.notFound);
return;
}
var
offset,
distanceAway,
target,
popup,
parent,
positioning,
popupOffset,
distanceFromBoundary
;
calculations = calculations || module.get.calculations();
position = position || $module.data(metadata.position) || settings.position;
offset = $module.data(metadata.offset) || settings.offset;
distanceAway = settings.distanceAway;
// shorthand
target = calculations.target;
popup = calculations.popup;
parent = calculations.parent;
if(module.should.centerArrow(calculations)) {
module.verbose('Adjusting offset to center arrow on small target element');
if(position == 'top left' || position == 'bottom left') {
offset += (target.width / 2)
offset -= settings.arrowPixelsFromEdge;
}
if(position == 'top right' || position == 'bottom right') {
offset -= (target.width / 2)
offset += settings.arrowPixelsFromEdge;
}
}
if(target.width === 0 && target.height === 0 && !module.is.svg(target.element)) {
module.debug('Popup target is hidden, no action taken');
return false;
}
if(settings.inline) {
module.debug('Adding margin to calculation', target.margin);
if(position == 'left center' || position == 'right center') {
offset += target.margin.top;
distanceAway += -target.margin.left;
}
else if (position == 'top left' || position == 'top center' || position == 'top right') {
offset += target.margin.left;
distanceAway -= target.margin.top;
}
else {
offset += target.margin.left;
distanceAway += target.margin.top;
}
}
module.debug('Determining popup position from calculations', position, calculations);
if (module.is.rtl()) {
position = position.replace(/left|right/g, function (match) {
return (match == 'left')
? 'right'
: 'left'
;
});
module.debug('RTL: Popup position updated', position);
}
// if last attempt use specified last resort position
if(searchDepth == settings.maxSearchDepth && typeof settings.lastResort === 'string') {
position = settings.lastResort;
}
switch (position) {
case 'top left':
positioning = {
top : 'auto',
bottom : parent.height - target.top + distanceAway,
left : target.left + offset,
right : 'auto'
};
break;
case 'top center':
positioning = {
bottom : parent.height - target.top + distanceAway,
left : target.left + (target.width / 2) - (popup.width / 2) + offset,
top : 'auto',
right : 'auto'
};
break;
case 'top right':
positioning = {
bottom : parent.height - target.top + distanceAway,
right : parent.width - target.left - target.width - offset,
top : 'auto',
left : 'auto'
};
break;
case 'left center':
positioning = {
top : target.top + (target.height / 2) - (popup.height / 2) + offset,
right : parent.width - target.left + distanceAway,
left : 'auto',
bottom : 'auto'
};
break;
case 'right center':
positioning = {
top : target.top + (target.height / 2) - (popup.height / 2) + offset,
left : target.left + target.width + distanceAway,
bottom : 'auto',
right : 'auto'
};
break;
case 'bottom left':
positioning = {
top : target.top + target.height + distanceAway,
left : target.left + offset,
bottom : 'auto',
right : 'auto'
};
break;
case 'bottom center':
positioning = {
top : target.top + target.height + distanceAway,
left : target.left + (target.width / 2) - (popup.width / 2) + offset,
bottom : 'auto',
right : 'auto'
};
break;
case 'bottom right':
positioning = {
top : target.top + target.height + distanceAway,
right : parent.width - target.left - target.width - offset,
left : 'auto',
bottom : 'auto'
};
break;
}
if(positioning === undefined) {
module.error(error.invalidPosition, position);
}
module.debug('Calculated popup positioning values', positioning);
// tentatively place on stage
$popup
.css(positioning)
.removeClass(className.position)
.addClass(position)
.addClass(className.loading)
;
popupOffset = module.get.popupOffset();
// see if any boundaries are surpassed with this tentative position
distanceFromBoundary = module.get.distanceFromBoundary(popupOffset, calculations);
if( module.is.offstage(distanceFromBoundary, position) ) {
module.debug('Position is outside viewport', position);
if(searchDepth < settings.maxSearchDepth) {
searchDepth++;
position = module.get.nextPosition(position);
module.debug('Trying new position', position);
return ($popup)
? module.set.position(position, calculations)
: false
;
}
else {
if(settings.lastResort) {
module.debug('No position found, showing with last position');
}
else {
module.debug('Popup could not find a position to display', $popup);
module.error(error.cannotPlace, element);
module.remove.attempts();
module.remove.loading();
module.reset();
settings.onUnplaceable.call($popup, element);
return false;
}
}
}
module.debug('Position is on stage', position);
module.remove.attempts();
module.remove.loading();
if( settings.setFluidWidth && module.is.fluid() ) {
module.set.fluidWidth(calculations);
}
return true;
},
fluidWidth: function(calculations) {
calculations = calculations || module.get.calculations();
module.debug('Automatically setting element width to parent width', calculations.parent.width);
$popup.css('width', calculations.container.width);
},
variation: function(variation) {
variation = variation || module.get.variation();
if(variation && module.has.popup() ) {
module.verbose('Adding variation to popup', variation);
$popup.addClass(variation);
}
},
visible: function() {
$module.addClass(className.visible);
}
},
remove: {
loading: function() {
$popup.removeClass(className.loading);
},
variation: function(variation) {
variation = variation || module.get.variation();
if(variation) {
module.verbose('Removing variation', variation);
$popup.removeClass(variation);
}
},
visible: function() {
$module.removeClass(className.visible);
},
attempts: function() {
module.verbose('Resetting all searched positions');
searchDepth = 0;
triedPositions = false;
}
},
bind: {
events: function() {
module.debug('Binding popup events to module');
if(settings.on == 'click') {
$module
.on('click' + eventNamespace, module.toggle)
;
}
if(settings.on == 'hover' && hasTouch) {
$module
.on('touchstart' + eventNamespace, module.event.touchstart)
;
}
if( module.get.startEvent() ) {
$module
.on(module.get.startEvent() + eventNamespace, module.event.start)
.on(module.get.endEvent() + eventNamespace, module.event.end)
;
}
if(settings.target) {
module.debug('Target set to element', $target);
}