/home/skemvmse/www/wp-content/plugins/ultimate-elementor/assets/js/uael-table-of-contents.js
/*
* Table of Contents jQuery Plugin - jquery.toc
*
* Copyright 2013-2016 Nikhil Dabas
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
* in compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License
* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
* or implied. See the License for the specific language governing permissions and limitations
* under the License.
*/
( function( $ ) {
// Builds a list with the table of contents in the current selector.
// options:
// content: where to look for headings
// headings: string with a comma-separated list of selectors to be used as headings, ordered
// by their relative hierarchy level
OffSet = {
_setoffset: function( lists ){
if ( window.matchMedia("(max-width: 767px)").matches ) {
if( undefined == lists.data( 'scroll-offset-mobile' ) ){
scroll_offset = lists.data( 'scroll-offset' );
return scroll_offset;
} else {
scroll_offset = lists.data( 'scroll-offset-mobile' );
return scroll_offset;
}
} else if ( window.matchMedia("(max-width: 976px)").matches ) {
if( undefined == lists.data( 'scroll-offset-tablet' ) ){
scroll_offset = lists.data( 'scroll-offset' );
return scroll_offset;
} else {
scroll_offset = lists.data( 'scroll-offset-tablet' );
return scroll_offset;
}
} else {
scroll_offset = lists.data( 'scroll-offset' );
return scroll_offset;
}
},
__scroll_to_top_offset: function( lists, scroll_to_top_offset ) {
if ( window.matchMedia("(max-width: 767px)").matches ) {
if( undefined == lists.data( 'scroll-to-top-offset-mobile' ) ){
return scroll_to_top_offset;
} else {
scroll_to_top_offset = lists.data( 'scroll-to-top-offset-mobile' );
return scroll_to_top_offset;
}
} else if ( window.matchMedia("(max-width: 976px)").matches ) {
if( undefined == lists.data( 'scroll-to-top-offset-tablet' ) ){
return scroll_to_top_offset;
} else {
scroll_to_top_offset = lists.data( 'scroll-to-top-offset-tablet' );
return scroll_to_top_offset;
}
} else {
return scroll_to_top_offset;
}
}
}
var toc = function ( options ) {
return this.each( function () {
var root = $(this),
data = root.data(),
thisOptions,
stack = [root], // The upside-down stack keeps track of list elements
listTag = this.tagName,
currentLevel = 0,
headingSelectors;
// Defaults: plugin parameters override data attributes, which override our defaults
thisOptions = $.extend(
{content: "body", headings: "h1,h2,h3,h4,h5,h6"},
{content: data.toc || undefined, headings: data.tocHeadings || undefined},
options
);
headingSelectors = thisOptions.headings.split(",");
if( ! $( thisOptions.content ).find( thisOptions.headings ).length ) {
$widget_scope = $( 'body' ).find( '.elementor-element-' + options.scope );
$widget_scope.find( '.uael-toc-main-wrapper' ).addClass( 'uael-toc-content-empty' );
}
$( thisOptions.content ).find( thisOptions.headings ).addClass( "uael-toc-text" );
var exclude_parent = $( 'body' ).find( '.uae-toc-hide-heading' );
exclude_parent.each( function( i ) {
var $this = $( this );
if( $this.hasClass( 'uael-toc-text' ) ) {
$this.addClass( 'uael-toc-hidden-item' );
}
$this.find( '.uael-toc-text' ).addClass( 'uael-toc-hidden-item' );
});
// Set up some automatic IDs if we do not already have them
$(thisOptions.content).find(thisOptions.headings).attr("id", function (index, attr) {
// In HTML5, the id attribute must be at least one character long and must not
// contain any space characters.
//
// We just use the HTML5 spec now because all browsers work fine with it.
// https://mathiasbynens.be/notes/html5id-class
if ( undefined !== attr ) {
attr = attr.replace( /[&\/\\#,+()$!~%.'":*?<>{}]/g, "" );
}
var generateUniqueId = function (text) {
// Generate a valid ID. Spaces are replaced with underscores. We also check if
// the ID already exists in the document. If so, we append "_1", "_2", etc.
// until we find an unused ID.
if (text.length === 0) {
text = "?";
}
var baseId = text.replace(/\s+/g, "_"), suffix = "", count = 1;
baseId = baseId.replace(/[&\/\\#,+()$!~%.'":*?<>{}]/g, "");
while (document.getElementById(baseId + suffix) !== null) {
suffix = "_" + count++;
}
return baseId + suffix;
};
return attr || generateUniqueId($(this).text());
}).each(function () {
// What level is the current heading?
var elem = $(this), level = $.map(headingSelectors, function (selector, index) {
return elem.is(selector) ? index : undefined;
})[0];
if( elem.hasClass( 'uael-toc-hidden-item' ) ) {
return;
}
if (level > currentLevel) {
// If the heading is at a deeper level than where we are, start a new nested
// list, but only if we already have some list items in the parent. If we do
// not, that means that we're skipping levels, so we can just add new list items
// at the current level.
// In the upside-down stack, unshift = push, and stack[0] = the top.
var parentItem = stack[0].children("li:last")[0];
if (parentItem) {
stack.unshift($("<" + listTag + "/>").appendTo(parentItem));
}
} else {
// Truncate the stack to the current level by chopping off the 'top' of the
// stack. We also need to preserve at least one element in the stack - that is
// the containing element.
stack.splice(0, Math.min(currentLevel - level, Math.max(stack.length - 1, 0)));
}
// Add the list item
$("<li/>").appendTo(stack[0]).append(
$("<a/>").text(elem.text()).attr("href", "#" + elem.attr("id"))
);
currentLevel = level;
});
});
}, old = $.fn.toc;
$.fn.toc = toc;
$.fn.toc.noConflict = function () {
$.fn.toc = old;
return this;
};
// Data API
$( function () {
toc.call($("[data-toc]"));
});
var scroll_element = null;
UAELTableOfContents = {
/**
* Hide scroll to top button on scroll
*
*/
_showHideScroll: function() {
scroll_element = $( ".uael-scroll-top-icon" );
if ( null != scroll_element ) {
if ( $( window ).scrollTop() > 300 ) {
scroll_element.addClass( "uael-toc__show-scroll" );
} else {
scroll_element.removeClass( "uael-toc__show-scroll" );
}
}
},
/**
* Show Hide toggle button
*
*/
_toggleButton: function( separator, wrapper, toggle_content ) {
separator.toggle( 100 );
if ( wrapper.hasClass( 'content-show' ) ) {
toggle_content.slideUp( 350 );
wrapper.removeClass( 'content-show' );
} else {
toggle_content.slideDown( 350 );
wrapper.addClass( 'content-show' );
}
if( wrapper.hasClass( 'uael-toc-auto-collapse' ) ) {
wrapper.removeClass( 'uael-toc-auto-collapse' );
} else {
wrapper.toggleClass( 'uael-toc-hidden' );
}
}
};
WidgetUAELTableOfContents = function( $scope, $ ) {
var body_wrap = $( 'body' );
var $body = body_wrap.find( '.entry-content' );
var node_id = $scope.data( 'id' );
var toggle_button = $scope.find( '.uael-toc-switch' );
var toggle_content = $scope.find( '.uael-toc-toggle-content' );
var is_collapsible = toggle_button.data( 'is-collapsible' );
var wrapper = $scope.find( '.uael-toc-main-wrapper' );
var selected_headings = wrapper.data( 'headings' );
var lists = $scope.find( '.uael-toc-list' );
var scroll_delay = lists.data( 'scroll' );
var separator = $scope.find( '.uael-separator-parent' );
var scroll_offset = OffSet._setoffset( lists );
var lists_scroll_to_top_offset = lists.data( 'scroll-to-top-offset' );
var scroll_to_top_offset = OffSet.__scroll_to_top_offset( lists, lists_scroll_to_top_offset );
if( $body.length === 0 ) {
$body = body_wrap.find( '.page-content' );
}
if( $body.length === 0 ) {
$body = body_wrap.find( 'div[data-elementor-type]' );
}
window.onresize = function( ) {
scroll_offset = OffSet._setoffset( lists );
lists_scroll_to_top_offset = lists.data( 'scroll-to-top-offset' );
scroll_to_top_offset = OffSet.__scroll_to_top_offset( lists, lists_scroll_to_top_offset );
}
// Toggle content on Show/Hide button.
toggle_button.on( 'click', function( e ) {
if( 'yes' === is_collapsible ) {
UAELTableOfContents._toggleButton( separator, wrapper, toggle_content );
}
});
// Execute TOC function.
$scope.find( '.uael-toc-list' ).toc( { content: $body, headings: selected_headings, scope: node_id } );
wrapper.find( '.uael-toc-list a' ).on( 'click', function () {
if( '' == scroll_offset || 'undefined' == typeof scroll_offset ) {
$( 'html, body' ).animate( {
scrollTop: $( $.attr( this, 'href' ) ).offset().top-30
}, scroll_delay );
} else {
$( 'html, body' ).animate( {
scrollTop: $( $.attr( this, 'href' ) ).offset().top-(scroll_offset)
}, scroll_delay );
}
// Add class to active heading.
$scope.find( '.uael-toc-list a' ).not( this ).removeClass( 'uael-toc-active-heading' );
$( this ).addClass( 'uael-toc-active-heading' );
return false;
});
$scope.find( '.uael-toc-wrapper li' ).each( function( i ) {
$( this ).attr( "id", "toc-li-" + i );
});
$scope.find( '.uael-scroll-top-icon' ).on( 'click', function( e ) {
if( '' == scroll_to_top_offset || 'undefined' == typeof scroll_to_top_offset ) {
$( "html, body" ).animate( {
scrollTop: wrapper.offset().top
}, scroll_delay );
} else {
$( 'html, body' ).animate( {
scrollTop: scroll_to_top_offset
}, scroll_delay );
}
});
$( document ).on( "scroll", UAELTableOfContents._showHideScroll );
}
$( window ).on( 'elementor/frontend/init', function () {
elementorFrontend.hooks.addAction( 'frontend/element_ready/uael-table-of-contents.default', WidgetUAELTableOfContents );
});
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