File: //var/www/mussarq_bak/wp-content/themes/wpnull24/framework/js/base/scroll.js
/**
* $us.scroll
*
* ScrollSpy, Smooth scroll links and hash-based scrolling all-in-one
*
* @requires $us.canvas
*/
! function( $ ) {
"use strict";
function USScroll( options ) {
// Setting options
var defaults = {
/**
* @param {String|jQuery} Selector or object of hash scroll anchors that should be attached on init
*/
attachOnInit: '.menu-item a[href*="#"], .menu-item[href*="#"], a.w-btn[href*="#"], .w-text a[href*="#"], ' + '.vc_icon_element a[href*="#"], .vc_custom_heading a[href*="#"], a.w-grid-item-anchor[href*="#"], .w-toplink, ' + '.w-image a[href*="#"], .w-iconbox a[href*="#"], .w-comments-title a[href*="#"], a.smooth-scroll[href*="#"]',
/**
* @param {String} Classname that will be toggled on relevant buttons
*/
buttonActiveClass: 'active',
/**
* @param {String} Classname that will be toggled on relevant menu items
*/
menuItemActiveClass: 'current-menu-item',
/**
* @param {String} Classname that will be toggled on relevant menu ancestors
*/
menuItemAncestorActiveClass: 'current-menu-ancestor',
/**
* @param {Number} Duration of scroll animation
*/
animationDuration: $us.canvasOptions.scrollDuration,
/**
* @param {String} Easing for scroll animation
*/
animationEasing: 'easeInOutExpo'
};
this.options = $.extend( {}, defaults, options || {} );
// Hash blocks with targets and activity indicators
this.blocks = {};
// Is scrolling to some specific block at the moment?
this.isScrolling = false;
// Waypoints that will be called at certain scroll position
this.waypoints = [];
// Sticky rows
this.stickyRows = [];//$('.l-section.type_sticky');
// Boundable events
this._events = {
cancel: this.cancel.bind( this ), scroll: this.scroll.bind( this ), resize: this.resize.bind( this )
};
this._canvasTopOffset = 0;
$us.$window.on( 'resize load', this._events.resize );
setTimeout( this._events.resize, 75 );
$us.$window.on( 'scroll', this._events.scroll );
setTimeout( this._events.scroll, 75 );
if ( this.options.attachOnInit ) {
this.attach( this.options.attachOnInit );
}
$( '.l-section.type_sticky' ).each( function( key, row ) {
var $row = $( row ), $rowGap = $row.next( '.l-section-gap' ), stickyRow = {
$row: $row, $rowGap: $rowGap
};
this._countStickyRow( stickyRow );
this.stickyRows.push( stickyRow );
}.bind( this ) );
// Recount scroll positions on any content changes
$us.$canvas.on( 'contentChange', this._countAllPositions.bind( this ) );
// Handling initial document hash
if ( document.location.hash && document.location.hash.indexOf( '#!' ) == - 1 ) {
var hash = document.location.hash, scrollPlace = ( this.blocks[ hash ] !== undefined ) ? hash : undefined;
if ( scrollPlace === undefined ) {
try {
var $target = $( hash );
if ( $target.length != 0 ) {
scrollPlace = $target;
}
}
catch ( error ) {
//Do not have to do anything here since scrollPlace is already undefined
}
}
if ( scrollPlace !== undefined ) {
// While page loads, its content changes, and we'll keep the proper scroll on each sufficient content
// change until the page finishes loading or user scrolls the page manually
var keepScrollPositionTimer = setInterval( function() {
this.scrollTo( scrollPlace );
}.bind( this ), 100 );
var clearHashEvents = function() {
// Content size still may change via other script right after page load
setTimeout( function() {
clearInterval( keepScrollPositionTimer );
$us.canvas.resize();
this._countAllPositions();
this.scrollTo( scrollPlace );
}.bind( this ), 100 );
$us.$window.off( 'load touchstart mousewheel DOMMouseScroll touchstart', clearHashEvents );
}.bind( this );
$us.$window.on( 'load touchstart mousewheel DOMMouseScroll touchstart', clearHashEvents );
}
}
}
USScroll.prototype = {
/**
* Count hash's target position and store it properly
*
* @param {String} hash
* @private
*/
_countPosition: function( hash ) {
var targetTop = this.blocks[ hash ].target.offset().top;
if ( this.blocks[ hash ].target.is( '.l-section.sticky' ) ) {
this.blocks[ hash ].target.removeClass( 'sticky' );
targetTop = this.blocks[ hash ].target.offset().top;
this.blocks[ hash ].target.addClass( 'sticky' );
}
this.blocks[ hash ].top = Math.ceil( targetTop - this._canvasTopOffset );
if ( $us.header.headerTop === undefined || ( $us.header.headerTop > 0 && targetTop > $us.header.headerTop ) ) {
this.blocks[ hash ].top = this.blocks[ hash ].top - $us.header.scrolledOccupiedHeight;
}
if ( this.stickyRows[ 0 ] !== undefined && window.innerWidth > this.stickyRows[ 0 ].disableWidth && targetTop > this.stickyRows[ 0 ].originalTop ) {
this.blocks[ hash ].top = this.blocks[ hash ].top - this.stickyRows[ 0 ].height;
}
this.blocks[ hash ].bottom = this.blocks[ hash ].top + this.blocks[ hash ].target.outerHeight( false );
},
/**
* Count all targets' positions for proper scrolling
*
* @private
*/
_countAllPositions: function() {
// Take into account #wpadminbar (and others possible) offset
this._canvasTopOffset = $us.$canvas.offset().top;
// Counting stickyRows
for ( var i = 0; i < this.stickyRows.length; i ++ ) {
this._countStickyRow( this.stickyRows[ i ] );
}
// Counting blocks
for ( var hash in this.blocks ) {
if ( ! this.blocks.hasOwnProperty( hash ) ) {
continue;
}
this._countPosition( hash );
}
// Counting waypoints
for ( var i = 0; i < this.waypoints.length; i ++ ) {
this._countWaypoint( this.waypoints[ i ] );
}
},
/**
* Indicate scroll position by hash
*
* @param {String} activeHash
* @private
*/
_indicatePosition: function( activeHash ) {
var activeMenuAncestors = [];
for ( var hash in this.blocks ) {
if ( ! this.blocks.hasOwnProperty( hash ) ) {
continue;
}
if ( this.blocks[ hash ].buttons !== undefined ) {
this.blocks[ hash ].buttons.toggleClass( this.options.buttonActiveClass, hash === activeHash );
}
if ( this.blocks[ hash ].menuItems !== undefined ) {
this.blocks[ hash ].menuItems.toggleClass( this.options.menuItemActiveClass, hash === activeHash );
}
if ( this.blocks[ hash ].menuAncestors !== undefined ) {
this.blocks[ hash ].menuAncestors.removeClass( this.options.menuItemAncestorActiveClass );
}
}
if ( this.blocks[ activeHash ] !== undefined && this.blocks[ activeHash ].menuAncestors !== undefined ) {
this.blocks[ activeHash ].menuAncestors.addClass( this.options.menuItemAncestorActiveClass );
}
},
/**
* Attach anchors so their targets will be listened for possible scrolls
*
* @param {String|jQuery} anchors Selector or list of anchors to attach
*/
attach: function( anchors ) {
// Location pattern to check absolute URLs for current location
var locationPattern = new RegExp( '^' + location.pathname.replace( /[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&" ) + '#' );
var $anchors = $( anchors );
if ( $anchors.length == 0 ) {
return;
}
$anchors.each( function( index, anchor ) {
var $anchor = $( anchor ), href = $anchor.attr( 'href' ), hash = $anchor.prop( 'hash' );
// Ignoring ajax links
if ( hash.indexOf( '#!' ) != - 1 ) {
return;
}
// Checking if the hash is connected with the current page
if ( ! ( // Link type: #something
href.charAt( 0 ) == '#' || // Link type: /#something
( href.charAt( 0 ) == '/' && locationPattern.test( href ) ) || // Link type:
// http://example.com/some/path/#something
href.indexOf( location.host + location.pathname + '#' ) > - 1 ) ) {
return;
}
// Do we have an actual target, for which we'll need to count geometry?
if ( hash != '' && hash != '#' ) {
// Attach target
if ( this.blocks[ hash ] === undefined ) {
var $target = $( hash ), $type = '';
// Don't attach anchors that actually have no target
if ( $target.length == 0 ) {
return;
}
// If it's the only row in a section, than use section instead
if ( $target.hasClass( 'g-cols' ) && $target.parent().children().length == 1 ) {
$target = $target.closest( '.l-section' );
}
// If it's tabs or tour item, then use tabs container
if ( $target.hasClass( 'w-tabs-section' ) ) {
var $newTarget = $target.closest( '.w-tabs' );
if ( ! $newTarget.hasClass( 'accordion' ) ) {
$target = $newTarget;
$type = 'tab';
}
}
this.blocks[ hash ] = {
target: $target, type: $type
};
this._countPosition( hash );
}
// Attach activity indicator
if ( $anchor.parent().length > 0 && $anchor.parent().hasClass( 'menu-item' ) ) {
var $menuIndicator = $anchor.closest( '.menu-item' );
this.blocks[ hash ].menuItems = ( this.blocks[ hash ].menuItems || $() ).add( $menuIndicator );
var $menuAncestors = $menuIndicator.parents( '.menu-item-has-children' );
if ( $menuAncestors.length > 0 ) {
this.blocks[ hash ].menuAncestors = ( this.blocks[ hash ].menuAncestors || $() ).add( $menuAncestors );
}
} else {
this.blocks[ hash ].buttons = ( this.blocks[ hash ].buttons || $() ).add( $anchor );
}
}
$anchor.on( 'click', function( event ) {
event.preventDefault();
this.scrollTo( hash, true );
//If it's tabs
if ( typeof this.blocks[ hash ] !== 'undefined' ) {
if ( this.blocks[ hash ].type == 'tab' ) {
var $linkedSection = this.blocks[ hash ].target.find( '.w-tabs-section[id="' + hash.substr( 1 ) + '"]' );
if ( $linkedSection.length && ( ! $linkedSection.hasClass( 'active' ) ) ) {
var $header = $linkedSection.find( '.w-tabs-section-header' );
$header.click();
}
}
}
}.bind( this ) );
}.bind( this ) );
},
/**
* Scroll page to a certain position or hash
*
* @param {Number|String|jQuery} place
* @param {Boolean} animate
*/
scrollTo: function( place, animate ) {
var placeType, newY;
// Scroll to top
if ( place == '' || place == '#' ) {
newY = 0;
placeType = 'top';
}
// Scroll by hash
else if ( this.blocks[ place ] !== undefined ) {
newY = this.blocks[ place ].top;
placeType = 'hash';
} else if ( place instanceof $ ) {
if ( place.hasClass( 'w-tabs-section' ) ) {
var newPlace = place.closest( '.w-tabs' );
if ( ! newPlace.hasClass( 'accordion' ) ) {
place = newPlace;
}
}
newY = Math.floor( place.offset().top - this._canvasTopOffset );
if ( $us.header.headerTop === undefined || ( $us.header.headerTop > 0 && place.offset().top > $us.header.headerTop ) ) {
newY = newY - $us.header.scrolledOccupiedHeight;
}
placeType = 'element';
} else {
newY = Math.floor( place - this._canvasTopOffset );
if ( $us.header.headerTop === undefined || ( $us.header.headerTop > 0 && place > $us.header.headerTop ) ) {
newY = newY - $us.header.scrolledOccupiedHeight;
}
}
var indicateActive = function() {
if ( placeType == 'hash' ) {
this._indicatePosition( place );
} else {
this.scroll();
}
}.bind( this );
if ( animate ) {
this.isScrolling = true;
// Fix for iPads since scrollTop returns 0 all the time
if ( navigator.userAgent.match( /iPad/i ) != null && $( '.us_iframe' ).length && placeType == 'hash' ) {
$( place )[ 0 ].scrollIntoView( { behavior: "smooth", block: "start" } );
}
$us.$htmlBody.stop( true, false ).animate( {
scrollTop: newY + 'px'
}, {
duration: this.options.animationDuration, easing: this.options.animationEasing, always: function() {
$us.$window.off( 'keydown mousewheel DOMMouseScroll touchstart', this._events.cancel );
this.isScrolling = false;
indicateActive();
}.bind( this )
} );
// Allow user to stop scrolling manually
$us.$window.on( 'keydown mousewheel DOMMouseScroll touchstart', this._events.cancel );
} else {
$us.$htmlBody.stop( true, false ).scrollTop( newY );
indicateActive();
}
},
/**
* Cancel scroll
*/
cancel: function() {
$us.$htmlBody.stop( true, false );
},
/**
* Add new waypoint
*
* @param {jQuery} $elm object with the element
* @param {mixed} offset Offset from bottom of screen in pixels ('100') or percents ('20%')
* @param {Function} fn The function that will be called
*/
addWaypoint: function( $elm, offset, fn ) {
$elm = ( $elm instanceof $ ) ? $elm : $( $elm );
if ( $elm.length == 0 ) {
return;
}
if ( typeof offset != 'string' || offset.indexOf( '%' ) == - 1 ) {
// Not percent: using pixels
offset = parseInt( offset );
}
var waypoint = {
$elm: $elm, offset: offset, fn: fn
};
this._countWaypoint( waypoint );
this.waypoints.push( waypoint );
},
/**
*
* @param {Object} waypoint
* @private
*/
_countWaypoint: function( waypoint ) {
var elmTop = waypoint.$elm.offset().top, winHeight = $us.$window.height();
if ( typeof waypoint.offset == 'number' ) {
// Offset is defined in pixels
waypoint.scrollPos = elmTop - winHeight + waypoint.offset;
} else {
// Offset is defined in percents
waypoint.scrollPos = elmTop - winHeight + winHeight * parseInt( waypoint.offset ) / 100;
}
},
/**
*
* @param {Object} stickyRow
* @private
*/
_countStickyRow: function( stickyRow ) {
var isSticky = false;
if ( stickyRow.$row.hasClass( 'sticky' ) ) {
isSticky = true;
stickyRow.$row.removeClass( 'sticky' );
}
stickyRow.disableWidth = ( stickyRow.$row.data( 'sticky-disable-width' ) !== undefined ) ? stickyRow.$row.data( 'sticky-disable-width' ) : 900;
stickyRow.originalTop = stickyRow.$row.offset().top;
stickyRow.top = stickyRow.$row.offset().top - this._canvasTopOffset;
if ( $us.header.headerTop === undefined || ( $us.header.headerTop > 0 && stickyRow.top > $us.header.headerTop ) ) {
stickyRow.top = stickyRow.top - $us.header.scrolledOccupiedHeight;
}
stickyRow.height = stickyRow.$row.outerHeight();
if ( stickyRow.$row.is( '.l-main .l-section:first-child' ) ) {
stickyRow.height = stickyRow.height - parseInt( stickyRow.$row.css( 'padding-top' ) );
}
if ( isSticky ) {
stickyRow.$row.addClass( 'sticky' );
}
},
/**
* Scroll handler
*/
scroll: function() {
var scrollTop = parseInt( $us.$window.scrollTop() );
if ( ! this.isScrolling ) {
var activeHash;
for ( var hash in this.blocks ) {
if ( ! this.blocks.hasOwnProperty( hash ) ) {
continue;
}
if ( scrollTop >= ( this.blocks[ hash ].top - 1 ) && scrollTop < ( this.blocks[ hash ].bottom - 1 ) ) {
activeHash = hash;
break;
}
}
this._indicatePosition( activeHash );
}
// Handling sticky rows
for ( var i = 0; i < this.stickyRows.length; i ++ ) {
if ( this.stickyRows[ i ].top < scrollTop && window.innerWidth > this.stickyRows[ i ].disableWidth ) {
this.stickyRows[ i ].$row.addClass( 'sticky' );
this.stickyRows[ i ].$rowGap.css( 'height', this.stickyRows[ i ].height );
} else {
this.stickyRows[ i ].$row.removeClass( 'sticky' );
this.stickyRows[ i ].$rowGap.css( 'height', null );
}
}
// Handling waypoints
for ( var i = 0; i < this.waypoints.length; i ++ ) {
if ( this.waypoints[ i ].scrollPos < scrollTop ) {
this.waypoints[ i ].fn( this.waypoints[ i ].$elm );
this.waypoints.splice( i, 1 );
i --;
}
}
},
/**
* Resize handler
*/
resize: function() {
// Delaying the resize event to prevent glitches
setTimeout( function() {
this._countAllPositions();
this.scroll();
}.bind( this ), 150 );
this._countAllPositions();
this.scroll();
}
};
$( function() {
$us.scroll = new USScroll( $us.scrollOptions || {} );
} );
}( jQuery );