svghmi/widget_customhtml.ysl2
author Edouard Tisserant
Wed, 01 Mar 2023 10:54:54 +0100
changeset 3740 ac0e6de439b5
parent 3241 fe945f1f48b7
permissions -rw-r--r--
Linux runtime: overrun detection for real-time timers and for plc execution.

If real-time timer wakes-up PLC thread too late (10% over period), then
warning is logged.

If PLC code (IO retreive, execution, IO publish) takes longer than requested
PLC execution cycle, then warning is logged, and CPU hoogging is mitigated
by delaying next PLC execution a few cylces more until having at least
1ms minimal idle time.
// widget_customhtml.ysl2

widget_desc("CustomHtml") {
    longdesc
    ||
    CustomHtml widget allows insertion of HTML code in a svg:foreignObject.
    Widget content is replaced by foreignObject. HTML code is obtained from
    "code" labeled text content. HTML insert position and size is given with
    "container" labeled element.
    ||

    shortdesc > Custom HTML insert

    // TODO: support reload and POST based on variable content
}

widget_class("CustomHtml"){
    ||
        frequency = 5;
        widget_size = undefined;

        dispatch(value) {
            this.request_animate();
        }

        animate(){
        }

        init() {
            this.widget_size = this.container_elt.getBBox();
            this.element.innerHTML ='<foreignObject x="'+
                this.widget_size.x+'" y="'+this.widget_size.y+
                '" width="'+this.widget_size.width+'" height="'+this.widget_size.height+'"> '+
                this.code_elt.textContent+
                ' </foreignObject>';
        }
    ||
}


widget_defs("CustomHtml") {
    labels("container code");
}