svghmi/widget_custom.ysl2
author Edouard Tisserant <edouard@beremiz.fr>
Thu, 05 Dec 2024 13:56:59 +0100
changeset 4060 d2f5eb3c7d6e
parent 2909 0519fdce9a59
permissions -rw-r--r--
py_ext: fix CSV Writer

fix POU logic :
- SAVE is a BOOL
- invocation of py_eval on rising edge of SAVE
- remove save python argument

fix python:
- use no encoding for file open (python2)
- re-use detected dialect if any
- use no "rt+" and truncate since no need to re-sniff dialect for output file
- return "OK" instead of "#SUCCESS", preventing POU logic to ACK result
- support creating new line if writing just after last line
- support appending data on short rows

fix example:
- use a HMI:Button to trigger CSV write instead of HMI:Input +1
- reload CSVs on on each new CSV opened in file browser
- add display of CSV write output
// 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
    //         })
    //     }
    //     ||
    // }