1 // widget_page.ysl2

     2 

     3 widget_desc("Page") {

     4     longdesc

     5     ||

     6 

     7     Arguments are either:

     8 

     9     - XXX reference path TODO

    10 

    11     - name=value: setting variable with literal value.

    12     - name=other_name: copy variable content into another

    13 

    14     "active"+"inactive" labeled elements can be provided to show feedback when pressed

    15 

    16     Exemples:

    17 

    18     HMI:Page:notify=1@notify=/PLCVAR

    19     HMI:Page:ack=2:notify=1@ack=.local_var@notify=/PLCVAR

    20 

    21     ||

    22 

    23     shortdesc > Page 

    24 

    25 }

    26 

    27 widget_defs("Page") {

    28 

    29     |     assignments: {},

    30     |     dispatch: function(value, oldval, varnum) {

    31     const "widget", ".";

    32     foreach "path" {

    33         const "varid","generate-id()";

    34         const "varnum","position()-1";

    35         if "@assign" foreach "$widget/path[@assign]" if "$varid = generate-id()" {

    36     |         if(varnum == «$varnum») this.assignments["«@assign»"] = value;

    37         }

    38     }

    39     |     },

    40     |     assign: function() {

    41     const "paths","path";

    42     foreach "arg[contains(@value,'=')]"{

    43         const "name","substring-before(@value,'=')";

    44         const "value","substring-after(@value,'=')";

    45         const "index" foreach "$paths" if "@assign = $name" value "position()-1";

    46         const "isVarName", "regexp:test($value,'^[a-zA-Z_][a-zA-Z0-9_]+$')";

    47         choose {

    48             when "$isVarName"{

    49     |         const «$value» = this.assignments["«$value»"];

    50     |         if(«$value» != undefined)

    51     |             this.apply_hmi_value(«$index», «$value»);

    52             }

    53             otherwise {

    54     |         this.apply_hmi_value(«$index», «$value»);

    55             }

    56         }

    57     }

    58     |     },

    59 }

    60