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// widget_switch.ysl2

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widget_desc("ListSwitch") {

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    longdesc

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    ||

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    ListSwitch widget displays one item of an HMI:List depending on value of

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    given variable. Main element of the widget must be a clone of the list or

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    of an item of that list.  

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    Given variable's current value is compared to list items

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    label. For exemple if given variable type

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    is HMI_INT and value is 1, then item with label '1' will be displayed.

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    If matching variable of type HMI_STRING, then no quotes are needed. 

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    For exemple, 'hello' match HMI_STRING 'hello'.

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    shortdesc > Displays item of an HMI:List whose label matches value.

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    path name="value" accepts="HMI_INT,HMI_STRING" > value to compare to labels

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}

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widget_class("ListSwitch"){

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        frequency = 5;

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}

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widget_defs("ListSwitch") {

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    // cloned element must be part of a HMI:List or a HMI:List

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    const "targetid", "substring-after($hmi_element/@xlink:href,'#')";

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    const "from_list", "$hmi_lists[(@id | */@id) = $targetid]";

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        dispatch: function(value) {

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            this.element.href.baseVal = "#"+hmi_widgets["«$from_list/@id»"].items[value];

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        },

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    ||

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}