SVGHMI: Fix browser side exception when some widget are not used, and are then discarded and not present in final SVG. In that case JS code was still making reference to discarded widget elements and was raising exception at init.
// widget_custom.ysl2
//
// widget entierely defined from JS code in Inkscape description field
// TODO
// a preliminary implementation was initially attempted but disabled
// code collected around before code refactoring
/*const "mark" > =HMI=\n*/
/* TODO re-enable
||
function evaluate_js_from_descriptions() {
var Page;
var Input;
var Display;
var res = [];
||
const "midmark" > \n«$mark»
apply """//*[contains(child::svg:desc, $midmark) or \
starts-with(child::svg:desc, $mark)]""",2
mode="code_from_descs";
||
return res;
}
||
*/
// template "*", mode="code_from_descs" {
// ||
// {
// var path, role, name, priv;
// var id = "«@id»";
// ||
// /* if label is used, use it as default name */
// if "@inkscape:label"
// |> name = "«@inkscape:label»";
// | /* -------------- */
// // this breaks indent, but fixing indent could break string literals
// value "substring-after(svg:desc, $mark)";
// // nobody reads generated code anyhow...
// ||
// /* -------------- */
// res.push({
// path:path,
// role:role,
// name:name,
// priv:priv
// })
// }
// ||
// }