egroupware/api/js/etemplate/et2_core_xml.ts

126 lines
3.3 KiB
TypeScript

/**
* EGroupware eTemplate2 - JS XML Code
*
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @package etemplate
* @subpackage api
* @link https://www.egroupware.org
* @author Andreas Stöckel
*/
import "../../../vendor/bower-asset/jquery/dist/jquery.min.js";
import "../jquery/jquery.noconflict.js";
import {egw} from "../jsapi/egw_global.js";
/**
* Loads the given URL asynchronously from the server
*
* We make the Ajax call through main-windows jQuery object, to ensure cached copy
* in main-windows etemplate2 prototype works in IE too!
*
* @param {string} _url
* @param {function} _callback function(_xml)
* @param {object} _context for _callback
* @param {function} _fail_callback function(_xml)
* @return Promise
*/
export function et2_loadXMLFromURL(_url : string, _callback? : Function, _context? : object, _fail_callback? : Function)
{
if (typeof _context == "undefined")
{
_context = null;
}
// use window object from main window with same algorithm as for the template cache
let win;
try {
if (opener && opener.etemplate2)
{
win = opener;
}
}
catch (e) {
// catch security exception if opener is from a different domain
}
if (typeof win == "undefined")
{
win = egw.top;
}
// if preprocessor is missing --> add it
if (_url.indexOf('/etemplate.php/') === -1)
{
const parts = _url.match(/^(.*)(\/[^/]+\/templates\/.*)$/);
if (parts)
{
_url = parts[1]+'/api/etemplate.php'+parts[2];
}
}
// we add the full url (protocol and domain) as sometimes just the path
// gives a CSP error interpreting it as file:///path
// (if there are a enough 404 errors in html content ...)
return win.fetch((_url[0] === '/' ? location.protocol+'//'+location.host : '')+_url, {
method: 'GET'
})
.then((response) => {
if (!response.ok) {
throw response;
}
return response.text();
})
.then((xml) => {
const parser = new window.DOMParser();
return parser.parseFromString( xml, "text/xml" );
})
.then((xmldoc) => {
if (typeof _callback === 'function') {
_callback.call(_context, xmldoc.children[0]);
}
return xmldoc.children[0];
})
.catch((_err) => {
egw().message('Loading eTemplate from '+_url+' failed!'+"\n\n"+
(typeof _err.stack !== 'undefined' ? _err.stack : _err.status+' '+_err.statusText), 'error');
if(typeof _fail_callback === 'function') {
_fail_callback.call(_context, _err);
}
});
}
export function et2_directChildrenByTagName(_node : HTMLElement, _tagName : String) : HTMLElement[]
{
// Normalize the tag name
_tagName = _tagName.toLowerCase();
let result = [];
for (let i = 0; i < _node.childNodes.length; i++)
{
if (_tagName == _node.childNodes[i].nodeName.toLowerCase())
{
result.push(_node.childNodes[i]);
}
}
return result;
}
export function et2_filteredNodeIterator(_node : HTMLElement, _callback : Function, _context : object)
{
for (let i = 0; i < _node.childNodes.length; i++)
{
let node = _node.childNodes[i];
let nodeName = node.nodeName.toLowerCase();
if (nodeName.charAt(0) != "#")
{
_callback.call(_context, node, nodeName);
}
}
}
export function et2_readAttrWithDefault(_node : HTMLElement, _name : string, _default : string) : string
{
let val = _node.getAttribute(_name);
return (val === null) ? _default : val;
}