Files
edx-platform/lms/static/js/course_survey.js
Syed Hassan Raza 1e11baede4 Add aria-disabled attribute
TNL-997
2015-01-06 17:21:49 +05:00

96 lines
3.3 KiB
JavaScript

$(function() {
// adding js class for styling with accessibility in mind
$('body').addClass('js');
// form field label styling on focus
$("form :input").focus(function() {
$("label[for='" + this.id + "']").parent().addClass("is-focused");
}).blur(function() {
$("label").parent().removeClass("is-focused");
});
$('.status.message.submission-error').addClass("is-hidden");
toggleSubmitButton(true);
$('#survey-form').on('submit', function() {
/* validate required fields */
var $inputs = $('#survey-form :input');
$('.status.message.submission-error .message-copy').empty();
var cancel_submit = false;
$inputs.each(function() {
/* see if it is a required field and - if so - make sure user presented all information */
if (typeof $(this).attr("required") !== typeof undefined) {
var val = $(this).val();
if (typeof(val) === "string") {
if (val.trim().length === 0) {
var field_label = $(this).parent().find("label");
$(this).parent().addClass('field-error');
$('.status.message.submission-error .message-copy').append("<li class='error-item'>"+field_label.text()+"</li>");
cancel_submit = true;
}
} else if (typeof(val) === "object") {
/* for SELECT statements */
if (val === null || val.length === 0 || val[0] === "") {
var field_label = $(this).parent().find("label");
$(this).parent().addClass('field-error');
$('.status.message.submission-error .message-copy').append("<li class='error-item'>"+field_label.text()+"</li>");
cancel_submit = true;
}
}
}
});
if (cancel_submit) {
$('.status.message.submission-error').
removeClass("is-hidden").
focus();
$("html, body").animate({ scrollTop: 0 }, "fast");
return false;
}
toggleSubmitButton(false);
});
$('#survey-form').on('ajax:error', function() {
toggleSubmitButton(true);
});
$('#survey-form').on('ajax:success', function(event, json, xhr) {
var url = json.redirect_url;
location.href = url;
});
$('#survey-form').on('ajax:error', function(event, jqXHR, textStatus) {
toggleSubmitButton(true);
json = $.parseJSON(jqXHR.responseText);
$('.status.message.submission-error').addClass('is-shown').focus();
$('.status.message.submission-error .message-copy').
html(gettext("There has been an error processing your survey.")).
stop().
css("display", "block");
});
});
function toggleSubmitButton(enable) {
var $submitButton = $('form .form-actions #submit');
if(enable) {
$submitButton.
removeClass('is-disabled').
attr('aria-disabled', false).
removeProp('disabled');
}
else {
$submitButton.
addClass('is-disabled').
attr('aria-disabled', true).
prop('disabled', true);
}
}