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Jean-Christophe Engel 2025-10-27 21:20:12 +01:00
commit 6581b4afb7
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{{* -*- brindille -*- *}}
{{:admin_header title="Conversion poids - volume" custom_css="./style.css" current="module_epicier"}}
{{:include file="./_nav.html" current="conversion"}}
{{:assign var="noms." value="vinaigre"}}
{{:assign var="coefficients." value=1.01}}
{{:assign var="noms." value="huile"}}
{{:assign var="coefficients." value=0.92}}
{{:assign var="noms." value="lait"}}
{{:assign var="coefficients." value=1.03}}
{{:assign var="noms." value="alcool"}}
{{:assign var="coefficients." value=0.78}}
{{:assign ind=0}}
{{#foreach from=$noms key="key" item="elem"}}
{{:assign var="produit.name" value=$elem}}
{{:assign var="produit.coeff" from="coefficients.%d"|args:$ind}}
{{:assign var="liste_produits." value=$produit}}
{{:assign var="produits.%s"|args:$ind value=$elem}}
{{:assign ind="%d+1"|math:$ind}}
{{/foreach}}
<form method="post" action="">
<fieldset class="saisie">
<legend>Saisie</legend>
<dl>
{{:input type="select" name="produit" label="Produit" required=true default_empty="— Choisir —" options=$produits|sort}}
{{:input type="text" pattern="[0-9]+\.[0-9]+" name="poids" label="Poids en kg" required=true title="Saisir le poids en kg" size="10"}}
{{:input type="text" name="coeff" label="Coefficient" required=false readonly=true size="10"}}
{{:input type="text" name="volume" label="Volume en litres" required=false readonly=true size="10"}}
<div id="donnees" class="hidden">
{{:input type="select" name="coefficients" options=$coefficients}}
</div>
</dl>
</fieldset>
</form>
<script type="text/javascript">
// effacer le contenu de divers champs
function raz(field_list)
{
for (const elem of field_list) {
document.getElementById(elem).value = '';
}
}
function modifProduit(evt,
id_produit = 'f_produit',
id_poids = 'f_poids',
id_coeff = 'f_coeff',
id_volume = 'f_volume',
id_liste_coeff = 'f_coefficients'
)
{
const selected_prod = document.getElementById(id_produit);
const ind_sel = selected_prod.selectedIndex;
if (ind_sel > 0) {
const ind_coeff = parseInt(selected_prod.options[ind_sel].value) + 1;
const sel_coeff = document.getElementById(id_liste_coeff);
const coefficient = sel_coeff.options[ind_coeff].label;
// Afficher le coefficient
document.getElementById(id_coeff).value = coefficient;
const val_poids = document.getElementById(id_poids).value;
if (val_poids != '') {
computeVolume(evt, id_produit, id_poids, id_coeff, id_volume);
} else {
document.getElementById(id_poids).focus();
}
} else {
raz([id_poids, id_coeff, id_volume]);
}
}
function computeVolume(evt,
id_produit = 'f_produit',
id_poids = 'f_poids',
id_coeff = 'f_coeff',
id_volume = 'f_volume'
)
{
const val_coeff = document.getElementById(id_coeff).value;
if (val_coeff != '') {
const coeff = parseFloat(val_coeff);
const poids = parseFloat(document.getElementById(id_poids).value);
const volume = poids * coeff;
document.getElementById(id_volume).value = volume.toFixed(2);
} else {
document.getElementById(id_produit).focus();
}
}
(function () {
document.getElementById('f_produit').onchange = modifProduit;
document.getElementById('f_poids').onchange = computeVolume;
})();
</script>