searxng/searx/static/themes/simple/js/searx_src/autocomplete.js

(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.AutoComplete = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
/*
 * @license MIT
 *
 * Autocomplete.js v2.6.3
 * Developed by Baptiste Donaux
 * http://autocomplete-js.com
 *
 * (c) 2017, Baptiste Donaux
 */
"use strict";
var ConditionOperator;
(function (ConditionOperator) {
    ConditionOperator[ConditionOperator["AND"] = 0] = "AND";
    ConditionOperator[ConditionOperator["OR"] = 1] = "OR";
})(ConditionOperator || (ConditionOperator = {}));
var EventType;
(function (EventType) {
    EventType[EventType["KEYDOWN"] = 0] = "KEYDOWN";
    EventType[EventType["KEYUP"] = 1] = "KEYUP";
})(EventType || (EventType = {}));
/**
 * Core
 *
 * @class
 * @author Baptiste Donaux <baptiste.donaux@gmail.com> @baptistedonaux
 */
var AutoComplete = (function () {
    // Constructor
    function AutoComplete(params, selector) {
        if (params === void 0) { params = {}; }
        if (selector === void 0) { selector = "[data-autocomplete]"; }
        if (Array.isArray(selector)) {
            selector.forEach(function (s) {
                new AutoComplete(params, s);
            });
        }
        else if (typeof selector == "string") {
            var elements = document.querySelectorAll(selector);
            Array.prototype.forEach.call(elements, function (input) {
                new AutoComplete(params, input);
            });
        }
        else {
            var specificParams = AutoComplete.merge(AutoComplete.defaults, params, {
                DOMResults: document.createElement("div")
            });
            AutoComplete.prototype.create(specificParams, selector);
            return specificParams;
        }
    }
    AutoComplete.prototype.create = function (params, element) {
        params.Input = element;
        if (params.Input.nodeName.match(/^INPUT$/i) && (params.Input.hasAttribute("type") === false || params.Input.getAttribute("type").match(/^TEXT|SEARCH$/i))) {
            params.Input.setAttribute("autocomplete", "off");
            params._Position(params);
            params.Input.parentNode.appendChild(params.DOMResults);
            params.$Listeners = {
                blur: params._Blur.bind(params),
                destroy: AutoComplete.prototype.destroy.bind(null, params),
                focus: params._Focus.bind(params),
                keyup: AutoComplete.prototype.event.bind(null, params, EventType.KEYUP),
                keydown: AutoComplete.prototype.event.bind(null, params, EventType.KEYDOWN),
                position: params._Position.bind(params)
            };
            for (var event in params.$Listeners) {
                params.Input.addEventListener(event, params.$Listeners[event]);
            }
        }
    };
    AutoComplete.prototype.getEventsByType = function (params, type) {
        var mappings = {};
        for (var key in params.KeyboardMappings) {
            var event = EventType.KEYUP;
            if (params.KeyboardMappings[key].Event !== undefined) {
                event = params.KeyboardMappings[key].Event;
            }
            if (event == type) {
                mappings[key] = params.KeyboardMappings[key];
            }
        }
        return mappings;
    };
    AutoComplete.prototype.event = function (params, type, event) {
        var eventIdentifier = function (condition) {
            if ((match === true && mapping.Operator == ConditionOperator.AND) || (match === false && mapping.Operator == ConditionOperator.OR)) {
                condition = AutoComplete.merge({
                    Not: false
                }, condition);
                if (condition.hasOwnProperty("Is")) {
                    if (condition.Is == event.keyCode) {
                        match = !condition.Not;
                    }
                    else {
                        match = condition.Not;
                    }
                }
                else if (condition.hasOwnProperty("From") && condition.hasOwnProperty("To")) {
                    if (event.keyCode >= condition.From && event.keyCode <= condition.To) {
                        match = !condition.Not;
                    }
                    else {
                        match = condition.Not;
                    }
                }
            }
        };
        for (var name in AutoComplete.prototype.getEventsByType(params, type)) {
            var mapping = AutoComplete.merge({
                Operator: ConditionOperator.AND
            }, params.KeyboardMappings[name]), match = ConditionOperator.AND == mapping.Operator;
            mapping.Conditions.forEach(eventIdentifier);
            if (match === true) {
                mapping.Callback.call(params, event);
            }
        }
    };
    AutoComplete.prototype.makeRequest = function (params, callback) {
        var propertyHttpHeaders = Object.getOwnPropertyNames(params.HttpHeaders), request = new XMLHttpRequest(), method = params._HttpMethod(), url = params._Url(), queryParams = params._Pre(), queryParamsStringify = encodeURIComponent(params._QueryArg()) + "=" + encodeURIComponent(queryParams);
        if (method.match(/^GET$/i)) {
            if (url.indexOf("?") !== -1) {
                url += "&" + queryParamsStringify;
            }
            else {
                url += "?" + queryParamsStringify;
            }
        }
        request.open(method, url, true);
        for (var i = propertyHttpHeaders.length - 1; i >= 0; i--) {
            request.setRequestHeader(propertyHttpHeaders[i], params.HttpHeaders[propertyHttpHeaders[i]]);
        }
        request.onreadystatechange = function () {
            if (request.readyState == 4 && request.status == 200) {
                params.$Cache[queryParams] = request.response;
                callback(request.response);
            }
        };
        return request;
    };
    AutoComplete.prototype.ajax = function (params, request, timeout) {
        if (timeout === void 0) { timeout = true; }
        if (params.$AjaxTimer) {
            window.clearTimeout(params.$AjaxTimer);
        }
        if (timeout === true) {
            params.$AjaxTimer = window.setTimeout(AutoComplete.prototype.ajax.bind(null, params, request, false), params.Delay);
        }
        else {
            if (params.Request) {
                params.Request.abort();
            }
            params.Request = request;
            params.Request.send(params._QueryArg() + "=" + params._Pre());
        }
    };
    AutoComplete.prototype.cache = function (params, callback) {
        var response = params._Cache(params._Pre());
        if (response === undefined) {
            var request = AutoComplete.prototype.makeRequest(params, callback);
            AutoComplete.prototype.ajax(params, request);
        }
        else {
            callback(response);
        }
    };
    AutoComplete.prototype.destroy = function (params) {
        for (var event in params.$Listeners) {
            params.Input.removeEventListener(event, params.$Listeners[event]);
        }
        params.DOMResults.parentNode.removeChild(params.DOMResults);
    };
    return AutoComplete;
}());
AutoComplete.merge = function () {
    var merge = {}, tmp;
    for (var i = 0; i < arguments.length; i++) {
        for (tmp in arguments[i]) {
            merge[tmp] = arguments[i][tmp];
        }
    }
    return merge;
};
AutoComplete.defaults = {
    Delay: 150,
    EmptyMessage: "No result here",
    Highlight: {
        getRegex: function (value) {
            return new RegExp(value, "ig");
        },
        transform: function (value) {
            return "<strong>" + value + "</strong>";
        }
    },
    HttpHeaders: {
        "Content-type": "application/x-www-form-urlencoded"
    },
    Limit: 0,
    MinChars: 0,
    HttpMethod: "GET",
    QueryArg: "q",
    Url: null,
    KeyboardMappings: {
        "Enter": {
            Conditions: [{
                    Is: 13,
                    Not: false
                }],
            Callback: function (event) {
                if (this.DOMResults.getAttribute("class").indexOf("open") != -1) {
                    var liActive = this.DOMResults.querySelector("li.active");
                    if (liActive !== null) {
                        event.preventDefault();
                        this._Select(liActive);
                        this.DOMResults.setAttribute("class", "autocomplete");
                    }
                }
            },
            Operator: ConditionOperator.AND,
            Event: EventType.KEYDOWN
        },
        "KeyUpAndDown_down": {
            Conditions: [{
                    Is: 38,
                    Not: false
                },
                {
                    Is: 40,
                    Not: false
                }],
            Callback: function (event) {
                event.preventDefault();
            },
            Operator: ConditionOperator.OR,
            Event: EventType.KEYDOWN
        },
        "KeyUpAndDown_up": {
            Conditions: [{
                    Is: 38,
                    Not: false
                },
                {
                    Is: 40,
                    Not: false
                }],
            Callback: function (event) {
                event.preventDefault();
                var first = this.DOMResults.querySelector("li:first-child:not(.locked)"), last = this.DOMResults.querySelector("li:last-child:not(.locked)"), active = this.DOMResults.querySelector("li.active");
                if (active) {
                    var currentIndex = Array.prototype.indexOf.call(active.parentNode.children, active), position = currentIndex + (event.keyCode - 39), lisCount = this.DOMResults.getElementsByTagName("li").length;
                    if (position < 0) {
                        position = lisCount - 1;
                    }
                    else if (position >= lisCount) {
                        position = 0;
                    }
                    active.classList.remove("active");
                    active.parentElement.children.item(position).classList.add("active");
                }
                else if (last && event.keyCode == 38) {
                    last.classList.add("active");
                }
                else if (first) {
                    first.classList.add("active");
                }
            },
            Operator: ConditionOperator.OR,
            Event: EventType.KEYUP
        },
        "AlphaNum": {
            Conditions: [{
                    Is: 13,
                    Not: true
                }, {
                    From: 35,
                    To: 40,
                    Not: true
                }],
            Callback: function () {
                var oldValue = this.Input.getAttribute("data-autocomplete-old-value"), currentValue = this._Pre();
                if (currentValue !== "" && currentValue.length >= this._MinChars()) {
                    if (!oldValue || currentValue != oldValue) {
                        this.DOMResults.setAttribute("class", "autocomplete open");
                    }
                    AutoComplete.prototype.cache(this, function (response) {
                        this._Render(this._Post(response));
                        this._Open();
                    }.bind(this));
                }
            },
            Operator: ConditionOperator.AND,
            Event: EventType.KEYUP
        }
    },
    DOMResults: null,
    Request: null,
    Input: null,
    /**
     * Return the message when no result returns
     */
    _EmptyMessage: function () {
        var emptyMessage = "";
        if (this.Input.hasAttribute("data-autocomplete-empty-message")) {
            emptyMessage = this.Input.getAttribute("data-autocomplete-empty-message");
        }
        else if (this.EmptyMessage !== false) {
            emptyMessage = this.EmptyMessage;
        }
        else {
            emptyMessage = "";
        }
        return emptyMessage;
    },
    /**
     * Returns the maximum number of results
     */
    _Limit: function () {
        var limit = this.Input.getAttribute("data-autocomplete-limit");
        if (isNaN(limit) || limit === null) {
            return this.Limit;
        }
        return parseInt(limit, 10);
    },
    /**
     * Returns the minimum number of characters entered before firing ajax
     */
    _MinChars: function () {
        var minchars = this.Input.getAttribute("data-autocomplete-minchars");
        if (isNaN(minchars) || minchars === null) {
            return this.MinChars;
        }
        return parseInt(minchars, 10);
    },
    /**
     * Apply transformation on labels response
     */
    _Highlight: function (label) {
        return label.replace(this.Highlight.getRegex(this._Pre()), this.Highlight.transform);
    },
    /**
     * Returns the HHTP method to use
     */
    _HttpMethod: function () {
        if (this.Input.hasAttribute("data-autocomplete-method")) {
            return this.Input.getAttribute("data-autocomplete-method");
        }
        return this.HttpMethod;
    },
    /**
     * Returns the query param to use
     */
    _QueryArg: function () {
        if (this.Input.hasAttribute("data-autocomplete-param-name")) {
            return this.Input.getAttribute("data-autocomplete-param-name");
        }
        return this.QueryArg;
    },
    /**
     * Returns the URL to use for AJAX request
     */
    _Url: function () {
        if (this.Input.hasAttribute("data-autocomplete")) {
            return this.Input.getAttribute("data-autocomplete");
        }
        return this.Url;
    },
    /**
     * Manage the close
     */
    _Blur: function (now) {
        if (now === true) {
            this.DOMResults.setAttribute("class", "autocomplete");
            this.Input.setAttribute("data-autocomplete-old-value", this.Input.value);
        }
        else {
            var params = this;
            setTimeout(function () {
                params._Blur(true);
            }, 150);
        }
    },
    /**
     * Manage the cache
     */
    _Cache: function (value) {
        return this.$Cache[value];
    },
    /**
     * Manage the open
     */
    _Focus: function () {
        var oldValue = this.Input.getAttribute("data-autocomplete-old-value");
        if ((!oldValue || this.Input.value != oldValue) && this._MinChars() <= this.Input.value.length) {
            this.DOMResults.setAttribute("class", "autocomplete open");
        }
    },
    /**
     * Bind all results item if one result is opened
     */
    _Open: function () {
        var params = this;
        Array.prototype.forEach.call(this.DOMResults.getElementsByTagName("li"), function (li) {
            if (li.getAttribute("class") != "locked") {
		            li.onclick = function (event) {
                    params._Select(li);
                };
                li.onmouseenter = function () {
                    var active = params.DOMResults.querySelector("li.active");
                    if (active !== li) {
                        if (active !== null) {
                            active.classList.remove("active");
                        }
                        li.classList.add("active");
                    }
                };
            }
        });
    },
    /**
     * Position the results HTML element
     */
    _Position: function () {
        this.DOMResults.setAttribute("class", "autocomplete");
        this.DOMResults.setAttribute("style", "top:" + (this.Input.offsetTop + this.Input.offsetHeight) + "px;left:" + this.Input.offsetLeft + "px;width:" + this.Input.clientWidth + "px;");
    },
    /**
     * Execute the render of results DOM element
     */
    _Render: function (response) {
        var ul;
        if (typeof response == "string") {
            ul = this._RenderRaw(response);
        }
        else {
            ul = this._RenderResponseItems(response);
        }
        if (this.DOMResults.hasChildNodes()) {
            this.DOMResults.removeChild(this.DOMResults.childNodes[0]);
        }
        this.DOMResults.appendChild(ul);
    },
    /**
     * ResponseItems[] rendering
     */
    _RenderResponseItems: function (response) {
        var ul = document.createElement("ul"), li = document.createElement("li"), limit = this._Limit();
        // Order
        if (limit < 0) {
            response = response.reverse();
        }
        else if (limit === 0) {
            limit = response.length;
        }
        for (var item = 0; item < Math.min(Math.abs(limit), response.length); item++) {
            li.innerHTML = response[item].Label;
            li.setAttribute("data-autocomplete-value", response[item].Value);
            ul.appendChild(li);
            li = document.createElement("li");
        }
        return ul;
    },
    /**
     * string response rendering (RAW HTML)
     */
    _RenderRaw: function (response) {
        var ul = document.createElement("ul"), li = document.createElement("li");
        if (response.length > 0) {
            this.DOMResults.innerHTML = response;
        }
        else {
            var emptyMessage = this._EmptyMessage();
            if (emptyMessage !== "") {
                li.innerHTML = emptyMessage;
                li.setAttribute("class", "locked");
                ul.appendChild(li);
            }
        }
        return ul;
    },
    /**
     * Deal with request response
     */
    _Post: function (response) {
        try {
            var returnResponse = [];
            //JSON return
            var json = JSON.parse(response);
            if (Object.keys(json).length === 0) {
                return "";
            }
            if (Array.isArray(json)) {
                for (var i = 0; i < Object.keys(json).length; i++) {
                    returnResponse[returnResponse.length] = { "Value": json[i], "Label": this._Highlight(json[i]) };
                }
            }
            else {
                for (var value in json) {
                    returnResponse.push({
                        "Value": value,
                        "Label": this._Highlight(json[value])
                    });
                }
            }
            return returnResponse;
        }
        catch (event) {
            //HTML return
            return response;
        }
    },
    /**
     * Return the autocomplete value to send (before request)
     */
    _Pre: function () {
        return this.Input.value;
    },
    /**
     * Choice one result item
     */
    _Select: function (item) {
	console.log('test test test');
        if (item.hasAttribute("data-autocomplete-value")) {
            this.Input.value = item.getAttribute("data-autocomplete-value");
        }
        else {
            this.Input.value = item.innerHTML;
        }
        this.Input.setAttribute("data-autocomplete-old-value", this.Input.value);
    },
    $AjaxTimer: null,
    $Cache: {},
    $Listeners: {}
};
module.exports = AutoComplete;

},{}]},{},[1])(1)
});