newsupernova/vendor/magento/module-config/view/adminhtml/templates/system/config/js.phtml

<?php
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */

// @codingStandardsIgnoreFile

?>
<script>
require([
    'prototype'
], function () {

var freeModel = Class.create();
freeModel.prototype = {
    initialize : function()
    {
        this.reload = false;
        this.bindFreeMethodCutoffCostRelation();
    },
    bindFreeMethodCutoffCostRelation : function(parentId)
    {
        if (parentId) {
            // todo: fix bug in IE
            var freeMethodElements = $$('#'+parentId+' .free-method');
        } else {
            var freeMethodElements = $$('.free-method');
        }
        for(var i=0;i<freeMethodElements.length; i++) {
            Event.observe(freeMethodElements[i], 'change', this.checkFreeMethod.bind(this));
            this.initFreeMethod(freeMethodElements[i]);
        }
    },
    initFreeMethod : function(element)
    {
        var freeMethodElement = element;

        if (freeMethodElement && freeMethodElement.id) {
            var cutoffElement  = $(freeMethodElement.id.replace(/free_method/, 'cutoff_cost'));
            if (cutoffElement) {
                if (freeMethodElement.value == '') {
                    cutoffElement.disabled = true;
                } else {
                    cutoffElement.disabled = false;
                }
            }
        }
    },
    checkFreeMethod : function(event)
    {
        var freeMethodElement = Event.element(event);
        if (freeMethodElement && freeMethodElement.id) {
            var cutoffElement  = $(freeMethodElement.id.replace(/free_method/, 'cutoff_cost'));
            if (cutoffElement) {
                if (freeMethodElement.value == '') {
                    cutoffElement.disabled = true;
                } else {
                    cutoffElement.disabled = false;
                }
            }
        }
    }
}

freeMethod = new freeModel();

var originModel = Class.create();
originModel.prototype = {
    initialize : function()
    {
        this.reload = false;
        this.loader = new varienLoader(true);
        this.regionsUrl = "<?= /* @escapeNotVerified */ $block->getUrl('directory/json/countryRegion') ?>";

        this.bindCountryRegionRelation();
    },
    bindCountryRegionRelation : function(parentId)
    {
        if (parentId) {
            // todo: fix bug in IE
            var countryElements = $$('#'+parentId+' .countries');
        } else {
            var countryElements = $$('.countries');
        }
        for(var i=0; i<countryElements.size(); i++) {
            Event.observe(countryElements[i], 'change', this.reloadRegionField.bind(this));
            this.initRegionField(countryElements[i]);
            if ($(countryElements[i].id+'_inherit')) {
                Event.observe($(countryElements[i].id+'_inherit'), 'change', this.enableRegionZip.bind(this));
            }
        }
    },
    enableRegionZip : function(event)
    {
        this.reload = true;
        var countryElement = Event.element(event);
        if (countryElement && countryElement.id && !countryElement.checked) {
            var regionElement  = $(countryElement.id.replace(/country_id/, 'region_id'));
            var zipElement  = $(countryElement.id.replace(/country_id/, 'postcode'));
            if (regionElement && regionElement.checked) {
                regionElement.click();
            }
            if (zipElement && zipElement.checked) {
                zipElement.click();
            }
        }
    },
    initRegionField : function(element)
    {
        var countryElement = element;
        if (countryElement && countryElement.id) {
            var regionElement  = $(countryElement.id.replace(/country_id/, 'region_id'));
            if (regionElement) {
                this.regionElement = regionElement;
                if (countryElement.value.length) {
                    var url = this.regionsUrl+'parent/'+countryElement.value;
                    this.loader.load(url, {}, this.refreshRegionField.bind(this));
                } else {
                    this.clearRegionField(this.regionElement.disabled);
                }
            }
        }
    },
    reloadRegionField : function(event)
    {
        this.reload = true;
        var countryElement = Event.element(event);
        if (countryElement && countryElement.id) {
            var regionElement  = $(countryElement.id.replace(/country_id/, 'region_id'));
            if (regionElement) {
                this.regionElement = regionElement;
                if (countryElement.value.length) {
                    var url = this.regionsUrl+'parent/'+countryElement.value;
                    this.loader.load(url, {}, this.refreshRegionField.bind(this));
                } else {
                    this.clearRegionField(this.regionElement.disabled);
                }
            }
        }
    },
    refreshRegionField : function(serverResponse)
    {
        if (serverResponse) {
            var data = eval('(' + serverResponse + ')');
            var value = this.regionElement.value;
            var disabled = this.regionElement.disabled;
            if (data.length) {
                var html = '<select name="'+this.regionElement.name+'" id="'+this.regionElement.id+'" class="required-entry select" title="'+this.regionElement.title+'"'+(disabled?" disabled":"")+'>';
                for (var i in data) {
                    if (data[i].label) {
                        html+= '<option value="'+data[i].value+'"';
                        if (this.regionElement.value && (this.regionElement.value == data[i].value || this.regionElement.value == data[i].label)) {
                            html+= ' selected';
                        }
                        html+='>'+data[i].label+'<\/option>';
                    }
                }
                html+= '<\/select>';

                var parentNode = this.regionElement.parentNode;
                var regionElementId = this.regionElement.id;
                parentNode.innerHTML = html;
                this.regionElement = $(regionElementId);
            } else if (this.reload) {
                this.clearRegionField(disabled);
            }
        }
    },
    clearRegionField: function(disabled) {
        var html = '<input type="text" name="' + this.regionElement.name + '" id="' + this.regionElement.id + '" class="input-text" title="' + this.regionElement.title + '"' + (disabled ? " disabled" : "") + '>';
        var parentNode = this.regionElement.parentNode;
        var regionElementId = this.regionElement.id;
        parentNode.innerHTML = html;
        this.regionElement = $(regionElementId);
    }
}

originAddress = new originModel();

var perPageModel = Class.create();

perPageModel.prototype = {
    initialize : function()
    {
        this.listModeElement = $('catalog_frontend_list_mode');
        if (this.listModeElement) {
            this.gridValuesElement = $('catalog_frontend_grid_per_page_values');
            this.listValuesElement = $('catalog_frontend_list_per_page_values');
            this.listElement = $('catalog_frontend_list_per_page');
            this.gridElement = $('catalog_frontend_grid_per_page');

            this.gridOptions = [];
            this.listOptions = [];

            this.refreshPerPageSelect();
            this.bindListModeChange();
        }
    },
    bindListModeChange : function()
    {
        Event.observe(this.listModeElement, 'change', this.refreshPerPageSelect.bind(this));
    },
    refreshPerPageSelect : function()
    {
        if (this.listModeElement.value != '') {
            if (this.listModeElement.value == 'grid') {
                this.listElement.up(1).hide();
                this.listValuesElement.up(1).hide();

                this.gridElement.up(1).show();
                this.gridValuesElement.up(1).show();
            } else if (this.listModeElement.value == 'grid-list' || this.listModeElement.value == 'list-grid') {
                this.listElement.up(1).show();
                this.listValuesElement.up(1).show();

                this.gridElement.up(1).show();
                this.gridValuesElement.up(1).show();
            } else if (this.listModeElement.value == 'list') {
                this.listElement.up(1).show();
                this.listValuesElement.up(1).show();

                this.gridElement.up(1).hide();
                this.gridValuesElement.up(1).hide();
            }
        }
    }
}

perPageSelect = new perPageModel();

function showHint() {
    $$('.hint').each(function(element){
        Event.observe(element, 'mouseover', function(){
            element.down().show()
        });
        Event.observe(element, 'mouseout', function(){
            element.down().hide()
        });
    });
}

Event.observe(window, 'load', showHint);

});
</script>