/usr/share/faust/js/faustui.js is in faust-common 0.9.95~repack1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// a function to build a slider
// a faust slider is a composite object that embeds a label, a 'range' input
// and a 'text' input displaying the slider value
// slider and text value are linked together to reflect the same value.
//-----------------------------------------------------------------------------
function makeslider(id, orientation, min, max, value, step, sethandler, dest) {
var slider = document.createElement('input');
slider.id = id;
slider.type = "range";
slider.min = min;
slider.max = max;
slider.value = value;
slider.step = step;
var valId="v"+id;
var textval = document.createElement('input');
textval.id = valId;
textval.type = "text";
textval.value = value;
textval.size = 6;
textval.onchange = function(){ $( "#"+id ).val( this.value ); sethandler(dest, this.value); };
slider.onchange = function(){ $( "#"+valId ).val( this.value ); sethandler(dest, this.value); };
slider.fTextValue = textval;
return slider;
}
//-----------------------------------------------------------------------------
// a push button
//-----------------------------------------------------------------------------
function makebutton(label, id, sethandler, dest) {
var button = document.createElement('button');
button.id = id;
button.type = "button";
button.innerHTML= label;
button.value = 1;
button.onmousedown = function(){ sethandler(dest, 1); };
button.onmouseup = function(){ sethandler(dest, 0); };
return button;
}
//-----------------------------------------------------------------------------
// a check box
//-----------------------------------------------------------------------------
function makecheckbox(id, sethandler, dest) {
var cbox = document.createElement('input');
cbox.id = id;
cbox.type = "checkbox";
cbox.value = 0;
cbox.onchange = function(){ this.value = (this.value==1) ? 0 : 1; sethandler(dest, this.value); };
return cbox;
}
//-----------------------------------------------------------------------------
// a handler to send a faust 'set' message
// actually using a 'GET' method
//-----------------------------------------------------------------------------
function makesethandler() {
return function( dest, val) {
var msg = dest+"?value="+val;
if (0) $("#trace").html(msg);
else $.get( dest+"?value="+val );
};
}
function makeCol (elt, classname) {
var col = document.createElement('td');
if (typeof elt == 'object') {
col.appendChild (elt);
elt.className = classname;
}
else col.innerHTML = elt;
if (typeof classname != 'undefined')
col.className = classname;
return col;
}
function makehr (span) {
var row = document.createElement('tr');
var col = document.createElement('td');
col.appendChild (document.createElement('hr'));
row.appendChild (col);
col.colSpan = span;
return row;
}
//-----------------------------------------------------------------------------
// build a single UI element
// the element is returned in a row
//-----------------------------------------------------------------------------
function makeControl (elt, i, address, dest) {
var row = document.createElement('tr');
if (elt.type == 'button') {
row.appendChild ( document.createElement('td'));
row.appendChild ( makebutton(elt.label, "button"+i, makesethandler(), address + elt.address));
row.appendChild ( document.createElement('td'));
dest.appendChild (row);
}
else if ((elt.type == 'togglebutton') || (elt.type == 'checkbutton')) {
var box = makecheckbox("checkbox"+i, makesethandler(), address + elt.address);
row.appendChild ( makeCol (elt.label, "label"));
row.appendChild ( makeCol (box));
row.appendChild ( document.createElement('td'));
dest.appendChild (row);
}
else if ((elt.type == 'verticalslider') || (elt.type == 'horizontalslider') || (elt.type == 'numentry')) {
var slider = makeslider("slider"+i, 'vertical', elt.min, elt.max, elt.init, elt.step,
makesethandler(), address + elt.address);
row.appendChild (makeCol (elt.label, "label") );
row.appendChild (makeCol (slider), "control" );
row.appendChild (makeCol (slider.fTextValue), "value" );
dest.appendChild (row);
}
else {
alert (elt.type + " " + elt.label + " " + elt.elements);
if (elt.elements.length > 0) {
row.appendChild ( makeCol (elt.label, "group"));
dest.appendChild (row);
for (var j=0; j<elt.elements.length; j++) {
i = makeControl (elt.elements, i, address, dest);
}
dest.appendChild (makehr(3));
}
}
return i+1;
}
//-----------------------------------------------------------------------------
// build a faust program UI from a JSON description
//-----------------------------------------------------------------------------
function buildui (data) {
var desc = $.parseJSON (data);
var serial = 0;
$("#titre").html(desc.name);
var ui = desc.ui;
var address = "http://"+desc.address+":"+desc.port;
var table = document.createElement('table');
var row = document.createElement('tr');
table.className = "ui";
row.appendChild (makeCol (desc.name, "name") );
row.appendChild (makeCol (desc.address, "url") );
row.appendChild (makeCol (desc.port, "port") );
table.appendChild (row);
table.appendChild (makehr(3));
for (var i=0; i<ui.length; i++) {
serial = makeControl (ui[i], serial, address, table);
}
table.appendChild (makehr(3));
return table;
}
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