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// (2020.10.5, 차재복, Cha Jae Bok, http://www.ktword.co.kr)
// [caller] navi_testing.js, ...


// 지정된 div 요소(out)에, ajax에 의해 language.php 웹페이지를 표출
function keyword (out, lang, p, find, act, word_no) {

        if (glob_var.lang && !lang) lang = glob_var.lang;
        if (glob_var.p && !p) p = glob_var.p;
        if (!lang) lang = 'JS';
        if (!p) p = '1';

        if (!find) find = '';
        if (!act) act = '';
        
        // alert('lang='+lang+',p='+p+',find='+find+',act='+act+',word_no='+word_no);   // 디버깅용

        if (typeof out == 'string') out = document.getElementById(out);
        let method = 'get';
        let url = '../language/language.php?bare=1&lang='+lang+'&p='+p+'&find='+find+'&act='+act+'&word_no='+word_no;

		let xhr = new XMLHttpRequest();
		xhr.open(method, url);
		xhr.onreadystatechange = function() {
			if (xhr.readyState === 4 && xhr.status === 200) {
                out.innerHTML = xhr.responseText;    // 출력
                src_menus(out, lang, p);
			} 
		};
		xhr.send();

}


// ajax에 의해 표출된 화면에서, 필요 요소 마다(주로, a 요소) ajax 연결
function src_menus (out, lang, p) {

    // language 구분 form
    let menus = out.getElementsByClassName('lang_btn');
    for (let i = 0, len=menus.length; i < len; i++) {
        menus.item(i).addEventListener('click', function(e) {
            e.preventDefault();
            let lang = menus.item(i).value;
            keyword(out, lang);
        });
    }

    // page 구분 a 링크
    let elems = out.getElementsByClassName('pages')
    for (let i = 0, len=elems.length; i < len; i++) {
        elems.item(i).addEventListener('click', function(e) {
            e.preventDefault();
            let page = elems.item(i).dataset.page;
            keyword(out, lang, page);
        });
    }

    // 편집자 한
    if (glob_var.user_type > 0) {
        // 해당 keyword를 각 소스별로 찾아 등록
        let edits = out.getElementsByClassName('lang_edit');
        for (let i = 0, len=edits.length; i < len; i++) {
            edits.item(i).addEventListener('click', function(e) {
                e.preventDefault();
                let href = edits.item(i).getAttribute('href');
                query = href.substring(href.lastIndexOf('?')+1); 
                let searchParms = new URLSearchParams(query);
                let find = searchParms.get('find');
                keyword(out, lang, p, find, 'search');
            });
        }


        // 외부 자바스크립트 코드 삽입 실행 ('../language/language.js')
        let isIncludeJS = document.getElementById('language_js');
        if(!isIncludeJS) includeJS('../language/language.js','language_js');

        // 신규 keyword 추가 및 용어해설 번호 추가
        let no_adds = document.getElementsByClassName('no_add');
        if (no_adds) {
            for(let i=0; i<no_adds.length; i++){
                no_adds.item(i).addEventListener('click', function (e) {
                    e.preventDefault();

                    let keyTarget = e.target;

                    if(!keyTarget.nextSibling || keyTarget.nextSibling.nodeName!='DIV') {
                        div_create(keyTarget);                              // ex_run/navi_more.js
                    } else {
                        itemShowHide(keyTarget.nextSibling, e.target);      // base_utils/common_utils.js
                    }
                });
            }
        }

    }
}