add extjs 6.0.1 sources

[extjs.git] / extjs / packages / ux / src / ajax / Simlet.js

/**\r
 * This is a base class for more advanced "simlets" (simulated servers). A simlet is asked\r
 * to provide a response given a {@link Ext.ux.ajax.SimXhr} instance.\r
 */\r
Ext.define('Ext.ux.ajax.Simlet', function () {\r
    var urlRegex = /([^?#]*)(#.*)?$/,\r
        dateRegex = /^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2}(?:\.\d*)?)Z$/,\r
        intRegex = /^[+-]?\d+$/,\r
        floatRegex = /^[+-]?\d+\.\d+$/;\r
\r
    function parseParamValue (value) {\r
        var m;\r
\r
        if (Ext.isDefined(value)) {\r
            value = decodeURIComponent(value);\r
\r
            if (intRegex.test(value)) {\r
                value = parseInt(value, 10);\r
            } else if (floatRegex.test(value)) {\r
                value = parseFloat(value);\r
            } else if (!!(m = dateRegex.test(value))) {\r
                value = new Date(Date.UTC(+m[1], +m[2]-1, +m[3], +m[4], +m[5], +m[6]));\r
            }\r
        }\r
\r
        return value;\r
    }\r
\r
    return {\r
        alias: 'simlet.basic',\r
\r
        isSimlet: true,\r
\r
        responseProps: ['responseText', 'responseXML', 'status', 'statusText'],\r
\r
        /**\r
         * @cfg {Number} responseText\r
         */\r
\r
        /**\r
         * @cfg {Number} responseXML\r
         */\r
\r
        /**\r
         * @cfg {Object} responseHeaders\r
         */\r
\r
        /**\r
         * @cfg {Number} status\r
         */\r
        status: 200,\r
\r
        /**\r
         * @cfg {String} statusText\r
         */\r
        statusText: 'OK',\r
\r
        constructor: function (config) {\r
            Ext.apply(this, config);\r
        },\r
\r
        doGet: function (ctx) {\r
            var me = this,\r
                ret = {};\r
\r
            Ext.Array.forEach(me.responseProps, function (prop) {\r
                if (prop in me) {\r
                    ret[prop] = me[prop];\r
                }\r
            });\r
\r
            return ret;\r
        },\r
        \r
        doPost: function (ctx) {\r
            var me = this,\r
                ret = {};\r
\r
            Ext.Array.forEach(me.responseProps, function (prop) {\r
                if (prop in me) {\r
                    ret[prop] = me[prop];\r
                }\r
            });\r
\r
            return ret;\r
        },\r
\r
        doRedirect: function (ctx) {\r
            return false;\r
        },\r
\r
        doDelete: function (ctx) {\r
            var me = this,\r
                xhr = ctx.xhr,\r
                records = xhr.options.records;\r
            me.removeFromData(ctx,records);\r
        },\r
\r
        /**\r
         * Performs the action requested by the given XHR and returns an object to be applied\r
         * on to the XHR (containing `status`, `responseText`, etc.). For the most part,\r
         * this is delegated to `doMethod` methods on this class, such as `doGet`.\r
         *\r
         * @param {Ext.ux.ajax.SimXhr} xhr The simulated XMLHttpRequest instance.\r
         * @return {Object} The response properties to add to the XMLHttpRequest.\r
         */\r
        exec: function (xhr) {\r
            var me = this,\r
                ret = {},\r
                method = 'do' + Ext.String.capitalize(xhr.method.toLowerCase()), // doGet\r
                fn = me[method];\r
\r
            if (fn) {\r
                ret = fn.call(me, me.getCtx(xhr.method, xhr.url, xhr));\r
            } else {\r
                ret = { status: 405, statusText: 'Method Not Allowed' };\r
            }\r
\r
            return ret;\r
        },\r
\r
        getCtx: function (method, url, xhr) {\r
            return {\r
                method: method,\r
                params: this.parseQueryString(url),\r
                url: url,\r
                xhr: xhr\r
            };\r
        },\r
\r
        openRequest: function (method, url, options, async) {\r
            var ctx = this.getCtx(method, url),\r
                redirect = this.doRedirect(ctx),\r
                xhr;\r
            if (options.action === 'destroy'){\r
                method = 'delete';\r
            }\r
            if (redirect) {\r
                xhr = redirect;\r
            } else {\r
                xhr = new Ext.ux.ajax.SimXhr({\r
                    mgr: this.manager,\r
                    simlet: this,\r
                    options: options\r
                });\r
                xhr.open(method, url, async);\r
            }\r
            \r
            return xhr;\r
        },\r
\r
        parseQueryString : function (str) {\r
            var m = urlRegex.exec(str),\r
                ret = {},\r
                key,\r
                value,\r
                i, n;\r
\r
            if (m && m[1]) {\r
                var pair, parts = m[1].split('&');\r
\r
                for (i = 0, n = parts.length; i < n; ++i) {\r
                    if ((pair = parts[i].split('='))[0]) {\r
                        key = decodeURIComponent(pair.shift());\r
                        value = parseParamValue((pair.length > 1) ? pair.join('=') : pair[0]);\r
\r
                        if (!(key in ret)) {\r
                            ret[key] = value;\r
                        } else if (Ext.isArray(ret[key])) {\r
                            ret[key].push(value);\r
                        } else {\r
                            ret[key] = [ret[key], value];\r
                        }\r
                    }\r
                }\r
            }\r
\r
            return ret;\r
        },\r
\r
        redirect: function (method, url, params) {\r
            switch (arguments.length) {\r
                case 2:\r
                    if (typeof url == 'string') {\r
                        break;\r
                    }\r
                    params = url;\r
                    // fall...\r
                case 1:\r
                    url = method;\r
                    method = 'GET';\r
                    break;\r
            }\r
\r
            if (params) {\r
                url = Ext.urlAppend(url, Ext.Object.toQueryString(params));\r
            }\r
            return this.manager.openRequest(method, url);\r
        },\r
\r
        removeFromData: function(ctx, records) {\r
            var me = this,\r
                data = me.getData(ctx),\r
                model = (ctx.xhr.options.proxy && ctx.xhr.options.proxy.getModel()) || {},\r
                idProperty = model.idProperty || 'id';\r
\r
            Ext.each(records, function(record) {\r
                var id = record.get(idProperty);\r
                for (var i = data.length; i-- > 0;) {\r
                    if (data[i][idProperty] === id) {\r
                        me.deleteRecord(i);\r
                        break;\r
                    }\r
                }\r
            });\r
        }\r
    };\r
}());\r