Files
edx-platform/cms/static/js/views/utils/create_library_utils.js
2015-01-12 13:37:50 +03:00

130 lines
5.7 KiB
JavaScript

/**
* Provides utilities for validating libraries during creation.
*/
define(["jquery", "underscore", "gettext", "js/views/utils/view_utils"],
function ($, _, gettext, ViewUtils) {
"use strict";
return function (selectors, classes) {
var validateTotalKeyLength, setNewLibraryFieldInErr, hasInvalidRequiredFields,
createLibrary, validateFilledFields, configureHandlers;
var validateRequiredField = ViewUtils.validateRequiredField;
var validateURLItemEncoding = ViewUtils.validateURLItemEncoding;
var keyLengthViolationMessage = gettext("The combined length of the organization and library code fields cannot be more than <%=limit%> characters.");
// Ensure that org/librarycode passes validateTotalKeyLength check
validateTotalKeyLength = function () {
ViewUtils.checkTotalKeyLengthViolations(
selectors, classes,
[selectors.org, selectors.number],
keyLengthViolationMessage
);
};
setNewLibraryFieldInErr = function (element, message) {
if (message) {
element.addClass(classes.error);
element.children(selectors.tipError).addClass(classes.showing).removeClass(classes.hiding).text(message);
$(selectors.save).addClass(classes.disabled);
}
else {
element.removeClass(classes.error);
element.children(selectors.tipError).addClass(classes.hiding).removeClass(classes.showing);
// One "error" div is always present, but hidden or shown
if ($(selectors.error).length === 1) {
$(selectors.save).removeClass(classes.disabled);
}
}
};
// One final check for empty values
hasInvalidRequiredFields = function () {
return _.reduce(
[selectors.name, selectors.org, selectors.number],
function (acc, element) {
var $element = $(element);
var error = validateRequiredField($element.val());
setNewLibraryFieldInErr($element.parent(), error);
return error ? true : acc;
},
false
);
};
createLibrary = function (libraryInfo, errorHandler) {
$.postJSON(
'/library/',
libraryInfo
).done(function (data) {
ViewUtils.redirect(data.url);
}).fail(function(jqXHR, textStatus, errorThrown) {
var reason = errorThrown;
if (jqXHR.responseText) {
try {
var detailedReason = $.parseJSON(jqXHR.responseText).ErrMsg;
if (detailedReason) {
reason = detailedReason;
}
} catch (e) {}
}
errorHandler(reason);
});
};
// Ensure that all fields are not empty
validateFilledFields = function () {
return _.reduce(
[selectors.org, selectors.number, selectors.name],
function (acc, element) {
var $element = $(element);
return $element.val().length !== 0 ? acc : false;
},
true
);
};
// Handle validation asynchronously
configureHandlers = function () {
_.each(
[selectors.org, selectors.number],
function (element) {
var $element = $(element);
$element.on('keyup', function (event) {
// Don't bother showing "required field" error when
// the user tabs into a new field; this is distracting
// and unnecessary
if (event.keyCode === $.ui.keyCode.TAB) {
return;
}
var error = validateURLItemEncoding($element.val(), $(selectors.allowUnicode).val() === 'True');
setNewLibraryFieldInErr($element.parent(), error);
validateTotalKeyLength();
if (!validateFilledFields()) {
$(selectors.save).addClass(classes.disabled);
}
});
}
);
var $name = $(selectors.name);
$name.on('keyup', function () {
var error = validateRequiredField($name.val());
setNewLibraryFieldInErr($name.parent(), error);
validateTotalKeyLength();
if (!validateFilledFields()) {
$(selectors.save).addClass(classes.disabled);
}
});
};
return {
validateTotalKeyLength: validateTotalKeyLength,
setNewLibraryFieldInErr: setNewLibraryFieldInErr,
hasInvalidRequiredFields: hasInvalidRequiredFields,
createLibrary: createLibrary,
validateFilledFields: validateFilledFields,
configureHandlers: configureHandlers
};
};
});