{{!
    @template core/url_select

    Example context (json):
    {
        "id": "url_select_test",
        "action": "https://example.com/post",
        "formid": "url_select_form",
        "sesskey": "sesskey",
        "label": "core/url_select",
        "helpicon": {
            "title": "Help with something",
            "text": "Help with something",
            "url": "http://example.org/help",
            "linktext": "",
            "icon":{
                "extraclasses": "iconhelp",
                "attributes": [
                    {"name": "src", "value": "../../../pix/help.svg"},
                    {"name": "alt", "value": "Help icon"}
                ]
            }
        },
        "showbutton": "Go",
        "options": [{
            "name": "Group 1", "isgroup": true, "options":
            [
                {"name": "Item 1", "isgroup": false, "value": "1"},
                {"name": "Item 2", "isgroup": false, "value": "2"}
            ]},
            {"name": "Group 2", "isgroup": true, "options":
            [
                {"name": "Item 3", "isgroup": false, "value": "3"},
                {"name": "Item 4", "isgroup": false, "value": "4"}
            ]}],
        "disabled": false,
        "title": "Some cool title"
    }
}}
<div class="{{classes}}">
    <form method="post" action="{{action}}" class="form-inline" id="{{formid}}">
        <input type="hidden" name="sesskey" value="{{sesskey}}">
        {{#label}}
            <label for="{{id}}"{{#labelattributes}} {{name}}="{{value}}"{{/labelattributes}}>
                {{label}}
            </label>
        {{/label}}
        {{#helpicon}}
            {{>core/help_icon}}
        {{/helpicon}}
        <select {{#attributes}}{{name}}="{{value}}" {{/attributes}} id="{{id}}" class="custom-select {{classes}}" name="jump"
                {{#title}}title="{{.}}"{{/title}} {{#disabled}}disabled{{/disabled}}>
            {{#options}}
                {{#isgroup}}
                    <optgroup label="{{name}}">
                        {{#options}}
                            <option value="{{value}}" {{#selected}}selected{{/selected}}>{{{name}}}</option>
                        {{/options}}
                    </optgroup>
                {{/isgroup}}
                {{^isgroup}}
                    <option value="{{value}}" {{#selected}}selected{{/selected}}>{{{name}}}</option>
                {{/isgroup}}
            {{/options}}
        </select>
        {{#showbutton}}
            <input type="submit" class="btn btn-secondary" value="{{showbutton}}">
        {{/showbutton}}
        {{^showbutton}}
            <noscript>
                <input type="submit" class="btn btn-secondary" value="{{#str}}go, core{{/str}}">
            </noscript>
        {{/showbutton}}
    </form>
</div>
{{^showbutton}}
    {{#js}}
        require(['jquery'], function($) {
            $('#{{id}}').change(function() {
                if (!$(this).val()) {
                    return false;
                }
                $('#{{formid}}').submit();
            });
        });
    {{/js}}
{{/showbutton}}