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