zotonic_mod_base

/* Admin widgetManager class
----------------------------------------------------------

@package:	Zotonic
@Author:	Tim Benniks <tim@timbenniks.nl>
@Author:	Marc Worrell <marc@worrell.nl>

Copyright 2009-2011 Tim Benniks

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

---------------------------------------------------------- */

;(function($)
{
    function checkForWidgets(element, nodes) {
        if (typeof element.className == "string")
        {
            let classList = element.classList;
            for (let i = 0; i < classList.length; i++) {
                if (classList[i].startsWith("do_")) {
                    let functionName = classList[i].substring(3);
                    let defaultsName = functionName;

                    if ('dialog' == functionName) {
                        functionName = 'show_dialog'; // work around to prevent ui.dialog redefinition
                    }
                    if (typeof $(element)[functionName] == "function")
                    {
                        let defaults;

                        if ($.ui && $.ui[functionName] && $.ui[functionName].defaults)
                        {
                            defaults = $.ui[functionName].defaults;
                        }
                        else
                        {
                            defaults = {}
                        }
                        nodes.push({
                            element: element,
                            functionName: functionName,
                            defaults: defaults,
                            defaultsName: defaultsName
                        });
                    }
                    else
                    {
                        console?.warn("Missing ui function for widget", functionName, element);
                    }
                }
            }
        }
    }

    function callWidgets(nodes) {
        while (nodes.length > 0)
        {
            const n = nodes.pop();
            $(n.element)[n.functionName]( $.extend({}, n.defaults, $(n.element).metadata(n.defaultsName)) );
        }
    }

    if (typeof IncrementalDOM == "object") {
        const prevNodesCreated = IncrementalDOM.notifications.nodesCreated;
        IncrementalDOM.notifications.nodesCreated = (newNodes) => {
            let widgetNodes = [];
            newNodes.forEach((node) => {
                checkForWidgets(node, widgetNodes);
            });
            callWidgets(widgetNodes);
            if (prevNodesCreated) {
                prevNodesCreated(newNodes);
            }
        }
    }

    $.extend(
    {
        widgetManager: function(context)
        {
            let stack    = [context || document.body];
            let nodes   = [];

            while (stack.length > 0)
            {
                let element = stack.pop();

                checkForWidgets(element, nodes);

                if (element.childNodes)
                {
                    for (var i = 0; i< element.childNodes.length; i++)
                    {
                        if (element.childNodes[i].nodeType != 3)
                        {
                            stack.unshift(element.childNodes[i]);
                        }
                    }
                }
            }
            callWidgets(nodes);
        },

        misc:
        {
            log: function(obj)
            {
                var text = obj.toString();
                if(window.console)
                {
                    console.log(text);

                    if($.noticeAdd)
                    {
                        $.noticeAdd({
                            text: 'Logging, check firebug: '+text,
                            type: 'notice',
                            stay: 0
                        });
                    }
                }
                else
                {
                    if($.noticeAdd)
                    {
                        $.noticeAdd({
                            text: 'logged: '+text,
                            type: 'notice',
                            stay: 0
                        });
                    }
                    else
                    {
                        alert(text);
                    }
                }
            },

            warn: function(text, obj)
            {
                obj = obj || '';

                if(window.console)
                {
                    console.warn(text, obj.toString());
                }

                if($.noticeAdd)
                {
                    $.noticeAdd({
                        text: text,
                        type: 'notice',
                        stay: 1
                    });
                }
            },

            error: function(text, obj)
            {
                obj = obj || '';

                if(window.console)
                {
                    console.error(text, obj.toString());
                    if (obj.stack)
                        console.error(obj.stack);
                }

                if($.noticeAdd)
                {
                    $.noticeAdd({
                        text: text,
                        type: 'error',
                        stay: 1
                    });
                }
            }
        }
    });

    $.fn.metadata = function(functionName)
    {
        var elem = this[0];
        var data_name = 'widget-'+functionName;
        var data = $(elem).data(data_name);

        if (typeof data === "undefined")
        {
            data = elem.getAttribute("data-"+functionName);
            if (data)
            {
                try {
                    data = JSON.parse(data);
                } catch (e) {
                    console.error("Error parsing JSON in widget data attribute:", data);
                    data = {};
                }
            }
            else
            {
                data = {};
            }
            $(elem).data(data_name, data);
        }
        return data;
    };

    $.fn.widgetManager = function()
    {
        this.each(function() { $.widgetManager(this); });
        return this;
    };

    // Make jQuery UI optional
    if (typeof $.ui === 'undefined') {
        $.ui = {
            dialog: {}
        };
    }

    if (typeof $.widget !== 'function')
    {
        $.widget = function( widgetName, base ) {
            let name = widgetName.replace(/^ui\./, '');
            $.ui[name] = {
                defaults: {}
            };
            $.fn[name] = function( options ) {
                let w = {
                    element: this,
                    options: $.extend({}, $.ui.defaults, options)
                }
                if (base._init) {
                    base._init.call(w);
                }
            }
        }
    }

})(jQuery);