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/* global ns */
/**
* Create a text field for the form.
*
* @param {mixed} parent
* @param {Object} field
* @param {mixed} params
* @param {function} setValue
* @returns {ns.Text}
*/
ns.Text = function (parent, field, params, setValue) {
this.field = field;
this.value = params;
this.setValue = setValue;
this.changeCallbacks = [];
};
/**
* Append field to wrapper.
*
* @param {type} $wrapper
* @returns {undefined}
*/
ns.Text.prototype.appendTo = function ($wrapper) {
var that = this;
this.$item = ns.$(this.createHtml()).appendTo($wrapper);
this.$input = this.$item.find('input');
this.$errors = this.$item.children('.h5p-errors');
this.$input.change(function () {
// Validate
var value = that.validate();
if (value !== false) {
// Set param
if (H5P.trim(value) === '') {
// Avoid storing empty strings. (will be valid if field is optional)
delete that.value;
that.setValue(that.field);
}
else {
that.value = value;
that.setValue(that.field, ns.htmlspecialchars(value));
}
for (var i = 0; i < that.changeCallbacks.length; i++) {
that.changeCallbacks[i](value);
}
}
});
};
/**
* Run callback when value changes.
*
* @param {function} callback
* @returns {Number|@pro;length@this.changeCallbacks}
*/
ns.Text.prototype.change = function (callback) {
this.changeCallbacks.push(callback);
callback();
return this.changeCallbacks.length - 1;
};
/**
* Create HTML for the text field.
*/
ns.Text.prototype.createHtml = function () {
const id = ns.getNextFieldId(this.field);
const descriptionId = (this.field.description !== undefined ? ns.getDescriptionId(id) : undefined)
var input = ns.createText(this.value, this.field.maxLength, this.field.placeholder, id, descriptionId);
return ns.createFieldMarkup(this.field, input, id);
};
/**
* Validate the current text field.
*/
ns.Text.prototype.validate = function () {
var that = this;
var value = H5P.trim(this.$input.val());
var valid = true;
// Clear errors before showing new ones
this.$errors.html('');
if ((that.field.optional === undefined || !that.field.optional) && !value.length) {
this.$errors.append(ns.createError(ns.t('core', 'requiredProperty', {':property': ns.t('core', 'textField')})));
valid = false;
}
else if (value.length > this.field.maxLength) {
this.$errors.append(ns.createError(ns.t('core', 'tooLong', {':max': this.field.maxLength})));
valid = false;
}
else if (this.field.regexp !== undefined && value.length && !value.match(new RegExp(this.field.regexp.pattern, this.field.regexp.modifiers))) {
this.$errors.append(ns.createError(ns.t('core', 'invalidFormat')));
valid = false;
}
this.$input.toggleClass('error', !valid);
return ns.checkErrors(this.$errors, this.$input, value);
};
/**
* Remove this item.
*/
ns.Text.prototype.remove = function () {
this.$item.remove();
};
/**
* When someone from the outside wants to set a value.
*
* @param {string} value
*/
ns.Text.prototype.forceValue = function (value) {
this.$input.val(value).change();
};
// Tell the editor what widget we are.
ns.widgets.text = ns.Text;