alpaca/src/js/fields/advanced/ColorPickerField.js

Alpaca provides the easiest and fastest way to generate interactive forms for the web and mobile devices. It runs simply as HTML5 or more elaborately using Bootstrap, jQuery Mobile or jQuery UI. Alpaca uses Handlebars to process JSON schema and provide

/**
 * Uses: https://mjolnic.com/bootstrap-colorpicker/
 */
(function($) {

    var Alpaca = $.alpaca;

    Alpaca.Fields.ColorPickerField = Alpaca.Fields.TextField.extend(
    /**
     * @lends Alpaca.Fields.ColorPickerField.prototype
     */
    {
        /**
         * @see Alpaca.Fields.TextField#setup
         */
        setup: function()
        {
            var self = this;

            this.simpleColorPickerAvailable = false;
            if (!self.isDisplayOnly() && typeof($.fn.colorpicker) !== "undefined")
            {
                this.simpleColorPickerAvailable = true;
            }

            // default html5 input type = "color";
            if (typeof(this.options.colorpicker) === "undefined" && !self.simpleColorPickerAvailable)
            {
                this.inputType = "color";
            }

            this.base();

            // set up default colorpicker settings
            if (typeof(this.options.colorpicker) === "undefined")
            {
                this.options.colorpicker = {};
            }
        },

        /**
         * @see Alpaca.Fields.TextField#getFieldType
         */
        getFieldType: function() {
            return "colorpicker";
        },

        /**
         * @see Alpaca.Fields.TextField#getType
         */
        getType: function() {
            return "string";
        },

        afterRenderControl: function(model, callback)
        {
            var self = this;

            this.base(model, function() {

                // if we can render the spectrum plugin...
                if (self.simpleColorPickerAvailable && self.control)
                {
                    setTimeout(function(self) {
                        return function() {

                            // create a copy of the color picker settings and bind that
                            // this is because colorpicker jquery plugin seems to munge these configs across multiple instances
                            var cp = JSON.parse(JSON.stringify(self.options.colorpicker));
                            if (self.data)
                            {
                                cp.color = self.data;
                            }


                            $(self.control).colorpicker(cp);
                            $(self.control).on('changeColor.colorpicker', function(event) {
                                self.setValue(event.color.toHex());
                            });
                        }
                    }(self, self));
                }

                callback();
            });
        }

        /* builder_helpers */
        ,

        /**
         * @see Alpaca.Fields.TextField#getTitle
         */
        getTitle: function() {
            return "Color Picker Field";
        },

        /**
         * @see Alpaca.Fields.TextField#getDescription
         */
        getDescription: function() {
            return "A color picker for selecting hexadecimal color values";
        }

        /* end_builder_helpers */
    });

    Alpaca.registerFieldClass("colorpicker", Alpaca.Fields.ColorPickerField);

})(jQuery);