SVGHMI: Simplification and optimization. func:parselabel becomes a template.
All labels are parsed into a global variable containing resulting widget
description as a node-set. func:widget(id) was added for random access to
widget description.
// widget_input.ysl2
template "widget[@type='Input']", mode="widget_defs" {
param "hmi_element";
const "value_elt" {
optional_labels("value");
}
const "have_value","string-length($value_elt)>0";
value "$value_elt";
if "$have_value"
| frequency: 5,
| dispatch: function(value) {
if "$have_value"
| this.value_elt.textContent = String(value);
| },
const "edit_elt_id","$hmi_element/*[@inkscape:label='edit'][1]/@id";
| init: function() {
if "$edit_elt_id" {
| id("«$edit_elt_id»").addEventListener(
| "click",
| evt => alert('XXX TODO : Edit value'));
}
foreach "$hmi_element/*[regexp:test(@inkscape:label,'^[=+\-].+')]" {
| id("«@id»").addEventListener(
| "click",
| evt => {let new_val = change_hmi_value(this.indexes[0], "«func:escape_quotes(@inkscape:label)»");
if "$have_value"{
| this.value_elt.textContent = String(new_val);
}
| });
/* TODO gray out value until refreshed */
}
| },
}