source: branches/samba-3.5.x/swat2/scripting/forms.js

/*
        js functions for forms
*/


/*
  display a simple form from a ejs Form object
  caller should fill in
    f.name          = form name
    f.action        = action to be taken on submit (optional, defaults to current page)
    f.class         = css class (optional, defaults to 'form')
    f.submit        = an array of submit labels
    f.add(name, label, [type], [value])  =
        Add another element
    f.element[i].label = element label
    f.element[i].name  = element name (defaults to label)
    f.element[i].type  = element type (defaults to text)
    f.element[i].value = current value (optional, defaults to "")
 */
function form_display() {
        var f = this;
        var i, size = 20;
        write('<form name="' + f.name +
              '" method="post" action="' + f.action + 
              '" class="' + f.class + '">\n');
        if (f.element.length > 0) {
                write("<table>\n");
        }
        for (i in f.element) {
                var e = f.element[i];
                if (e.name == undefined) {
                        e.name = e.label;
                }
                if (e.value == undefined) {
                        e.value = "";
                }
                if (strlen(e.value) > size) {
                        size = strlen(e.value) + 4;
                }
        }
        for (i in f.element) {
                var e = f.element[i];
                write("<tr>");
                write("<td>" + e.label + "</td>");
                if (e.type == "select") {
                        write('<td><select name="' + e.name + '">\n');
                        for (s in e.list) {
                                if (e.value == e.list[s]) {
                                        write('<option selected=selected>' + e.list[s] + '</option>\n');
                                } else {
                                        write('<option>' + e.list[s] + '</option>\n');
                                }
                        }
                        write('</select></td>\n');
                } else {
                        var sizestr = "";
                        if (e.type == "text" || e.type == "password") {
                                sizestr = sprintf('size="%d"', size);
                        }
                        writef('<td><input name="%s" type="%s" value="%s" %s /></td>\n',
                               e.name, e.type, e.value, sizestr);
                }
                write("</tr>");
        }
        if (f.element.length > 0) {
                write("</table>\n");
        }
        for (i in f.submit) {
                write('<input name="submit" type="submit" value="' + f.submit[i] + '" />\n');
        }
        write("</form>\n");
}

function __addMethod(name, label)
{
        var f = this;
        var i = f.element.length;
        f.element[i] = new Object();
        f.element[i].name = name;
        f.element[i].label = label;
        f.element[i].type = "text";
        f.element[i].value = "";
        if (arguments.length > 2) {
                f.element[i].type = arguments[2];
        }
        if (arguments.length > 3) {
                f.element[i].value = arguments[3];
        }
}

/*
  create a Form object with the defaults filled in, ready for display()
 */
function FormObj(name, num_elements, num_submits)
{
        var f = new Object();
        f.name = name;
        f.element = new Array(num_elements);
        f.submit =  new Array(num_submits);
        f.action = session_uri(request.REQUEST_URI);
        f.class = "defaultform";
        f.add = __addMethod;
        for (i in f.element) {
                f.element[i] = new Object();
                f.element[i].type = "text";
                f.element[i].value = "";
        }
        f.display = form_display;

        return f;
}