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/**
* Shortcode Anchor
*
* @package ThemeREX Addons
* @since v1.2
*/
/* global jQuery, TRX_ADDONS_STORAGE */
jQuery( document ).ready( function() {
"use strict";
var $window = jQuery( window ),
$document = jQuery( document ),
$body = jQuery( 'body' );
$document.on( 'action.init_hidden_elements', function(e, container) {
// Build toc menu
var toc_menu = jQuery('#toc_menu');
if (toc_menu.length === 0) {
trx_addons_build_page_toc();
toc_menu = jQuery('#toc_menu');
if (toc_menu.length === 0) return;
} else if (toc_menu.hasClass('inited')) {
return;
}
toc_menu.addClass('inited');
var toc_menu_items = toc_menu.find('.toc_menu_item');
// One page mode for menu links (scroll to anchor)
// Old case: toc_menu.on('click', 'a', function(e) {
// New case (allow add class 'toc_menu_item' in any menu to enable scroll):
jQuery('.toc_menu_item > a').on('click', function(e) {
var link_obj = jQuery(this),
href = link_obj.attr('href'),
pos = href.indexOf('#');
if (pos >= 0 && href.length > 1 && trx_addons_is_local_link(href)) {
e.preventDefault();
$document.trigger( 'action.trx_addons_inner_links_click', [link_obj, e] );
trx_addons_scroll_to_anchor(jQuery(this), true);
return false;
}
});
// Mouse wheel handler
var wheel_busy = false,
wheel_time = 0,
wheel_stop = false;
if ( TRX_ADDONS_STORAGE['scroll_to_anchor'] == 1 && !TRX_ADDONS_STORAGE['scroll_to_anchor_wheel'] ) {
TRX_ADDONS_STORAGE['scroll_to_anchor_wheel'] = true;
$document.on('action.stop_wheel_handlers', function(e) {
wheel_stop = true;
});
$document.on('action.start_wheel_handlers', function(e) {
wheel_stop = false;
});
// To smoothing scroll in the Chrome 56+ use native event with parameter 'passive=false'
// to enable calls e.preventDefault inside the event's handler
window.addEventListener('mousewheel', trx_addons_mouse_wheel, { passive: false } ); // WebKit: native event
//$window.on('mousewheel', trx_addons_mouse_wheel); // WebKit: jquery wrapper
// Mozilla Firefox already have a smooth scroll - use jQuery
//window.addEventListener('DOMMouseScroll', trx_addons_mouse_wheel, { passive: false } ); // Mozilla Firefox: native event
$window.on('DOMMouseScroll', trx_addons_mouse_wheel); // Mozilla Firefox: jquery wrapper
}
function trx_addons_mouse_wheel(e) {
if (screen.width < 960 || trx_addons_window_width() < 960 || wheel_stop || trx_addons_browser_is_ios()) {
return true;
}
if (wheel_busy || wheel_time == e.timeStamp) {
e.preventDefault();
return false;
}
wheel_time = e.timeStamp;
var wheel_dir = e.originalEvent
? e.originalEvent.wheelDelta > 0 || e.originalEvent.detail < 0 ? -1 : 1
: e.wheelDelta > 0 || e.detail < 0 ? -1 : 1;
toc_menu_items = jQuery('#toc_menu .toc_menu_item');
var items = trx_addons_detect_active_toc(true);
if ( items ) {
var doit = false;
var scroll_offset = parseInt(trx_addons_window_scroll_top(), 10);
var wh = trx_addons_window_height();
var ah = trx_addons_fixed_rows_height();
if (wheel_dir == -1) { // scroll up
doit = true;
setTimeout( function() {
if (items.prev >= 0 && items.prevOffset >= scroll_offset-wh-ah) {
trx_addons_scroll_to_anchor( toc_menu_items.eq(items.prev).find('a'), false );
} else {
trx_addons_document_animate_to( Math.max(0, scroll_offset-wh) );
}
}, 10 );
} else { // scroll down
doit = true;
setTimeout( function() {
if (items.next >= 0 && items.nextOffset <= scroll_offset+wh+ah) {
trx_addons_scroll_to_anchor( toc_menu_items.eq(items.next).find('a'), false );
} else {
trx_addons_document_animate_to( Math.min( trx_addons_document_height(), scroll_offset+wh ) );
}
}, 10 );
}
// Set busy flag while animating
if (doit) {
wheel_busy = true;
setTimeout( function() { wheel_busy = false; }, trx_addons_browser_is_ios() ? 1200 : 100 );
e.preventDefault();
return false;
}
}
}
// Detect active TOC item
var last_scroll_offset = -1;
function trx_addons_detect_active_toc( force ) {
var scroll_offset = parseInt(trx_addons_window_scroll_top(), 10);
if ( !force && scroll_offset == last_scroll_offset ) {
return false;
} else {
last_scroll_offset = scroll_offset;
}
var items = {
loc: '',
current: [],
prev: -1,
prevOffset: -1,
next: -1,
nextOffset: -1
};
toc_menu_items.each(function(idx) {
var id = '#'+jQuery(this).data('id');
var pos = id.indexOf('#');
if (pos < 0 || id.length == 1) return;
var href = jQuery(this).find('a').attr('href');
if (!trx_addons_is_local_link(href) || jQuery(id).length==0) return;
var off = jQuery(id).offset().top;
var id_next = jQuery(this).next().find('a').attr('href');
var off_next = id_next && idx < toc_menu_items.length-1 && jQuery(id_next).length > 0
? parseInt(jQuery(id_next).offset().top, 10)
: 1000000;
if (off > scroll_offset + trx_addons_fixed_rows_height() + 20) {
if (items.next < 0) {
items.next = idx;
items.nextOffset = off;
}
} else if (off < scroll_offset - trx_addons_fixed_rows_height() - 20) {
items.prev = idx;
items.prevOffset = off;
}
if (off < scroll_offset + trx_addons_window_height()*0.8 && scroll_offset < off_next - trx_addons_fixed_rows_height()) {
items.current.push(idx);
if (items.loc == '') {
var loc = window.location.href;
var loc_pos = loc.indexOf('#');
if (loc_pos > 0) loc = loc.substring(0, loc_pos);
items.loc = href.indexOf('#')==0 ? loc + id : id;
}
}
});
return items;
}
// Change active element then page is scrolled
$document.on( 'action.scroll_trx_addons', function() {
// Mark current item
trx_addons_mark_active_toc();
});
setTimeout( function() {
trx_addons_mark_active_toc();
}, 500);
trx_addons_mark_active_toc();
// Mark active TOC item
function trx_addons_mark_active_toc() {
var items = trx_addons_detect_active_toc();
if ( items ) {
toc_menu_items.removeClass('toc_menu_item_active');
for (var i=0; i<items.current.length; i++) {
toc_menu_items.eq(items.current[i]).addClass('toc_menu_item_active');
// Comment next line if on your device page jump when scrolling
if (items.loc !== '' && TRX_ADDONS_STORAGE['update_location_from_anchor']==1 && !trx_addons_browser_is_mobile() && !trx_addons_browser_is_ios() && !wheel_busy) {
trx_addons_document_set_location(items.loc);
}
}
$document.trigger('action.toc_menu_item_active', [items.current]);
}
}
// Scroll to the anchor
function trx_addons_scroll_to_anchor(link_obj, click_event) {
var href = click_event ? link_obj.attr('href') : '#'+link_obj.parent().data('id');
var pos = href.indexOf('#');
if (pos >= 0 && href.length > 1 && trx_addons_is_local_link(href)) {
wheel_busy = true;
setTimeout(function() { wheel_busy = false; }, trx_addons_browser_is_ios() ? 1200 : 100);
trx_addons_document_animate_to(href.substr(pos), function() {
if (TRX_ADDONS_STORAGE['update_location_from_anchor']==1) {
var loc = window.location.href;
var loc_pos = loc.indexOf('#');
if (loc_pos > 0) loc = loc.substring(0, loc_pos);
trx_addons_document_set_location(pos==0 ? loc + href : href);
}
});
return true;
}
return false;
}
// Build page TOC from the tag's id
function trx_addons_build_page_toc() {
var toc = '', toc_count = 0;
jQuery( '[id^="toc_menu_"],.sc_anchor').each(function(idx) {
var obj = jQuery(this);
var obj_id = obj.attr('id') || ('sc_anchor_'+Math.random()).replace('.', '');
var row = obj.closest('.wpb_row,.elementor-row,.elementor-section').eq(0); // .elementor-row is deprecated from Elementor 3.0+
if (row.length == 0) row = !obj.parent().hasClass('entry-content') ? obj.parent() : obj;
var row_id = row.length>0 && row.attr('id') !== undefined && row.attr('id') !== '' ? row.attr('id') : '';
var id = row_id || obj_id.substr(10);
if (row.length>0 && row_id == '') {
row.attr('id', id);
}
var url = obj.data('url');
var icon = obj.data('vc-icon') || 'toc_menu_icon_default';
var title = obj.attr('title');
var description = obj.data('description');
var separator = obj.data('separator');
toc_count++;
toc += '<div class="toc_menu_item' + (separator == 'yes' ? ' toc_menu_separator' : '') + '"'
+ ' data-id="' + id + '"'
+ '>'
+ (title || description
? '<a href="' + (url ? url : '#'+id) + '" class="toc_menu_description">'
+ (title ? '<span class="toc_menu_description_title">' + title + '</span>' : '')
+ (description ? '<span class="toc_menu_description_text">' + description + '</span>' : '')
+ '</a>'
: '')
+ '<a href="' + (url ? url : '#'+id) + '" class="toc_menu_icon '+icon+'"></a>'
+ '</div>';
} );
if (toc_count > 0) {
$body.append('<div id="toc_menu" class="toc_menu"><div class="toc_menu_inner">'+toc+'</div></div>');
$document.trigger('action.build_page_toc');
}
}
} );
} );