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/* global ns */
/**
* Creates a boolean field for the editor.
*
* @param {mixed} parent
* @param {object} field
* @param {mixed} params
* @param {function} setValue
* @returns {ns.Boolean}
*/
ns.Boolean = function (parent, field, params, setValue) {
if (params === undefined) {
this.value = false;
setValue(field, this.value);
}
else {
this.value = params;
}
this.field = field;
this.setValue = setValue;
// Setup event dispatching on change
this.changes = [];
this.triggerListeners = function (value) {
// Run callbacks
for (var i = 0; i < this.changes.length; i++) {
this.changes[i](value);
}
};
};
/**
* Create HTML for the boolean field.
*/
ns.Boolean.prototype.createHtml = function () {
const id = ns.getNextFieldId(this.field);
const checked = (this.value !== undefined && this.value) ? ' checked' : '';
let content = '<input id="' + id + '" type="checkbox"';
if (this.field.description !== undefined) {
content += ' aria-describedby="' + ns.getDescriptionId(id) + '"';
}
if (this.value !== undefined && this.value) {
content += ' checked';
}
content += '/>';
return ns.createBooleanFieldMarkup(this.field, content, id);
};
/**
* "Validate" the current boolean field.
*/
ns.Boolean.prototype.validate = function () {
return true;
};
/**
* Append the boolean field to the given wrapper.
*
* @param {jQuery} $wrapper
* @returns {undefined}
*/
ns.Boolean.prototype.appendTo = function ($wrapper) {
var that = this;
this.$item = ns.$(this.createHtml()).appendTo($wrapper);
this.$input = this.$item.find('input');
this.$errors = this.$item.find('.h5p-errors');
this.$input.change(function () {
// Validate
that.value = that.$input.is(':checked');
that.setValue(that.field, that.value);
that.triggerListeners(that.value);
});
};
/**
* Remove this item.
*/
ns.Boolean.prototype.remove = function () {
this.$item.remove();
};
// Tell the editor what widget we are.
ns.widgets['boolean'] = ns.Boolean;