WebCompDev / COMPONENTS

<!--
@license
    The MIT License (MIT)

    Copyright (c) 2015 Dipartimento di Informatica - Universit� di Salerno - Italy

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<!--
* Developed by :
* ROUTE-TO-PA Project - grant No 645860. - www.routetopa.eu
*
-->

<link rel="import" href="../../bower_components/polymer/polymer.html">

<!--
The `base-datalet` is the base component that includes datalet footer (with information about dataset domain and ROUTE-TO-PA project).
Base datalet includes polymer.html and the BaseDataletBehaviors javascript file that define the datalet workcycle and the datalet base properties : dataUrl, fields and data.
Every datalet must include this one in its `<template>` section.

Example :

    <dom-module id="every-datalet">
        <template>
            ...
            <base-datalet data-url="{{dataUrl}}" fields="{{fields}}"></base-datalet>
            ...
        </template>
    </dom-module>

@element base-datalet
@status v0.1
@homepage
@group datalets
-->

<dom-module id="base-datalet">
    <template>
        <style>
            a {
                color: #00BCD4;
                text-decoration: none;
            }
            a:hover {
                color: #2db395;
                text-decoration: underline;
            }
            #base_datalet_container {
                position: relative;
                font-family: 'Roboto', 'Helvetica Neue', Helvetica, Arial, sans-serif;
                padding-top: 2px;
                border-top: 2px solid #B6B6B6;
                margin-top: 8px;
            }
            #base_datalet_rtp {
                display: flex;
                padding-top: 4px;
            }
            #rtp {
                padding-top: 8px;
                padding-right: 8px;
                font-size: 12px;
            }
            #rtpalogo {
                height: 32px;
                width: 32px;
            }
            #base_datalet_spin {
                height: 64px;
                width: 100%;
                margin-top: 64px;
            }

            #base_datalet_source_link{
                padding-top: 12px;
            }

            #span_title{
                font-size: small;
            }

            #span_description{
                font-style: italic;
                color: #727272;
            }
/*EXPORT*/
            .export
            {
                position: absolute;
                right: 0px;
                top: 0px;
                --paper-icon-button-ink-color: #2196F3;
                padding: 4px;
            }

            .export:hover {
                color: #2196F3;
            }

            .highcharts-contextmenu
            {
                position: absolute;
                top: 4px;
                right: 40px;
                font-size: small;
                font-size: small;
                border: solid 1px #000000;

                display: none;
            }

            .highcharts-contextmenu-container
            {
                /*background: rgb(255, 255, 255);*/
                /*background-color: #E0E0E0;*/
            }

            .highcharts-contextmenu-container div
            {
                cursor: pointer;
                padding: 0px 4px;
                /*color: rgb(48, 48, 48);*/
                font-size: 11px;
                line-height: 15px;
                /*background: none;*/
            }

            .highcharts-contextmenu-container div:hover
            {
                background: #00BCD4;
            }
/*EXPORT*/
        </style>

        <div id="base_datalet_imgWaitDatalet">
            <img id="base_datalet_spin" src="static/images/spin.svg">
        </div>

        <div id="base_datalet_container">

            <div id="base_datalet_title_description">
                <span id="span_title"><b>{{title}}</b> <span id="span_description">{{description}}</span></span>
            </div>

            <div id="base_datalet_source_link">
                <b>Source:</b> <a id="base_datalet_source" target="_blank"></a> (<a id="base_datalet_link" target="_blank">dataset</a>)
            </div>

            <div id="base_datalet_rtp">
                <div id="rtp">Powered by ROUTE-TO-PA</div>
                <div><a href="http://www.routetopa.eu/" target="_blank"><img id="rtpalogo" src="static/images/rtpalogo.png" ></a></div>
            </div>

            <div id="export">
                <!--<div class="export" on-click="showHideExportMenu"></div>-->
                <paper-icon-button class="export" on-click="showHideExportMenu" icon="more-horiz"></paper-icon-button>
                <div class="highcharts-contextmenu" id="highcharts-contextmenu">
                    <div class="highcharts-contextmenu-container">
                        <div id="export_html"     on-click="exportToHTML">Export to HTML</div>
                        <div id="export_png"      on-click="exportToIMG">Export to PNG</div>
                        <div id="export_rtf"      on-click="exportRTF">Export to RTF</div>
                        <div id="export_my_space" on-click="importToMySpace">Import in My Space</div>
                    </div>
                </div>
            </div>

        </div>

    </template>

    <script src="static/js/BaseDataletBehavior.js"></script>
    <script src="static/js/WorkcycleBehavior.js"></script>

    <script>
        BaseDatalet = Polymer({
            is: 'base-datalet',

            /**
             *
             * It is called after the element's template has been stamped and all elements inside the element's local
             * DOM have been configured (with values bound from parents, deserialized attributes, or else default values)
             * and had their ready method called.
             *
             * Extract
             *   1) the dataset domain
             *   2) the page of a datalet
             *   from the entire URL and set the text content of the datalet footer.
             * @method ready
             */
            ready: function(){

                this.setExportMenu();

                if(this.dataUrl != undefined) {

                    var urlSource = this.dataUrl.split("/")[0] + "//" + this.dataUrl.split("/")[2];
                    this.$.base_datalet_source.innerHTML = urlSource;
                    this.$.base_datalet_source.setAttribute("href", urlSource);


                    //OpenDataSoft check
                    if(this.dataUrl.indexOf("/records/") > -1 )
                    {
                        var i;
                        if(this.dataUrl.indexOf("&") > -1)
                            i = this.dataUrl.indexOf("&");
                        else
                            i = this.dataUrl.length;

                        this.$.base_datalet_link.setAttribute("href", urlSource + "/explore/dataset/" + this.dataUrl.substring(this.dataUrl.indexOf("=")+1, i));
                    }
                    // CKAN
                    else if(this.dataUrl.indexOf("datastore_search?resource_id") > -1 )
                    {
                        var comp = this;
                        $.ajax({
                            url: this.dataUrl.replace("datastore_search?resource_id", "resource_show?id"),
                            dataType: "json",
                            success: function(e){
                                comp.$.base_datalet_link.setAttribute("href", urlSource + "/dataset/" + e.result.package_id + "/resource/" + e.result.id);
                            }
                        });
                    }
                }

                else {
                    this.hideFooter();
                    this.$.base_datalet_spin.remove();
                }
            },

            /**
             * Set the domain url to show in the footer
             */
//            setDomain: function(url){
//                this.$.domain.textContent = url;
//            },

            removeLoader: function() {
                this.$.base_datalet_imgWaitDatalet.style.display = "none";
            },

            hideFooter: function() {
                this.$.base_datalet_container.innerHTML = "";
                this.$.base_datalet_container.style.margin = 0;
                this.$.base_datalet_container.style.border = 0;
            },

            setExportMenu: function()
            {
                // xxxx BITMASK. FROM RIGHT : HTML, PNG, RTF, MY SPACE (eg. 1111 show all, 0000 hide all)
                var bitmask = this.export_menu;
                var menu = ["export_html", "export_png", "export_rtf", "export_my_space"];

                if(bitmask == 15) return;

                if(bitmask == 0)
                {
                    this.$.export.style.display = "none";
                    return;
                }

                //var max_i = Math.floor(Math.log2(this.export_menu))+1;
                for(var i=0; i<menu.length; i++)
                {
                    if(bitmask % 2 == 0)
                        this.$[menu[i]].style.display = "none";

                    bitmask = Math.floor(bitmask/2);
                }
            },

            showHideExportMenu: function()
            {
                if(this.$["highcharts-contextmenu"].style.display == "block")
                    this.$["highcharts-contextmenu"].style.display = "none";
                else
                    this.$["highcharts-contextmenu"].style.display = "block";
            },

            exportToHTML: function () {
                var parent = this.parentElement;
                var html = '';
                while(!parent.hasAttribute("data-url"))
                    parent = parent.parentElement;

                html += '<'+parent.is;
                for(var i=0; i<parent.attributes.length; i++)
                    html += ' '+parent.attributes[i].name+'=\''+parent.attributes[i].value+'\'';
                html += '></'+parent.is+'>';

                var dataletImport = '\<script type="text/javascript" src="https://cdn.jsdelivr.net/webcomponentsjs/0.7.16/webcomponents-lite.min.js"\>\<\/script\>\n' +
                        '\<script type="text/javascript" src="https://code.jquery.com/jquery-2.1.4.min.js"\>\<\/script\>\n' +
                        '<!-- REMOVE THE PREVIOUS SCRIPT TAGS IF YOUR PAGE ALREADY USES JQUERY AND POLYFILL LIBRARIES  -->\n';

                var dataletLink = '<link rel="import" href="http://deep.routetopa.eu/COMPONENTS/datalets/'+parent.is+'/'+parent.is+'.html" /> \n';

                window.prompt("Copy to clipboard: Ctrl+C, Enter", dataletImport+dataletLink+html);
            },


            exportToIMG: function () {
                var parent = this.parentElement;
                while(!parent.hasAttribute("data-url"))
                    parent = parent.parentElement;


                var svg = $(parent).find(".highcharts-container");
                svg = $(svg[0]).html();

                var xhr = new XMLHttpRequest();

                xhr.onreadystatechange = function(){
                    if (this.readyState == 4 && this.status == 200){
                        var blob = new Blob([this.response], {type:'octet/stream'});
                        var downloadUrl = window.URL.createObjectURL(blob);
                        var a = document.createElement("a");
                        a.href = downloadUrl;
                        a.download = "image.png";
                        document.body.appendChild(a);
                        a.click();
                        //window.URL.revokeObjectURL(downloadUrl);
                    }
                };

                //xhr.open('POST', 'http://172.16.15.77/DEEalerProvider/DEEP/export/export-datalet-as-img', true);
                //xhr.open('POST', 'http://stage.routetopa.eu/deep/DEEP/export/export-datalet-as-img', true);
                xhr.open('POST', 'http://deep.routetopa.eu/deep_1_6/DEEP/export/export-datalet-as-img', true);
                xhr.setRequestHeader("Content-type", "application/x-www-form-urlencoded");

                var post = 'svg_data=' + window.encodeURIComponent(svg);
                xhr.responseType = 'blob';
                xhr.send(post);
            },

            exportRTF: function () {

                var t = this;
                var parent = this.parentElement;
                while(!parent.hasAttribute("data-url"))
                    parent = parent.parentElement;

                var post_id = parent.parentElement.id.match(/\d+/); post_id = post_id ? post_id[0] : "";
                var datalet_id = $(parent).parents().eq(3).attr("datalet-id") ? $(parent).parents().eq(3).attr("datalet-id") : "";
                var isPublicRoom = (typeof SPODPUBLICROOM != 'undefined') ? true : false;

                var svg = $(parent).find(".highcharts-container");
                svg = $(svg[0]).html();

                var xhr = new XMLHttpRequest();

                $.ajax({
                    url: ODE.get_datalet_info,
                    data: {"post_id" : post_id, "datalet_id" : datalet_id, "is_public_room" : isPublicRoom},
                    dataType: "json",
                    success: function(e){
                        //xhr.open('POST', 'http://172.16.15.77/DEEalerProvider/DEEP/export/export-datalet-as-rtf', true);
                        //xhr.open('POST', 'http://stage.routetopa.eu/deep/DEEP/export/export-datalet-as-rtf', true);
                        xhr.open('POST', 'http://deep.routetopa.eu/deep_1_6/DEEP/export/export-datalet-as-rtf', true);
                        xhr.setRequestHeader("Content-type", "application/x-www-form-urlencoded");

                        var post = 'svg_data=' + window.encodeURIComponent(svg) + '&datalet=' + parent.is + '&dataset=' + t.$.base_datalet_link.getAttribute("href");
                        post += '&user=' + e.user + '&timestamp=' + e.timestamp + '&comment=' + (e.comment ? e.comment : "");

                        xhr.responseType = 'blob';

                        //OpenDataSoft check
                        if(t.dataUrl.indexOf("/records/") > -1)
                        {
                            var urlSource = t.dataUrl.split("/")[0] + "//" + t.dataUrl.split("/")[2];

                            var i;
                            if(t.dataUrl.indexOf("&") > -1)
                                i = t.dataUrl.indexOf("&");
                            else
                                i = t.dataUrl.length;

                            $.ajax({
                                url: urlSource + "/api/dataset/1.0/" + t.dataUrl.substring(t.dataUrl.indexOf("=")+1, i),
                                dataType: "json",
                                success: function(e){
                                    post += '&name=' + e.metas.title + '&description=' + e.metas.description + '&created=' + e.metas.data_processed  + '&lastModified=' + e.metas.modified;
                                    xhr.send(post);
                                }
                            });
                        }
                        else if(t.dataUrl.indexOf("datastore_search?resource_id") > -1 )
                        {
                            $.ajax({
                                url: t.dataUrl.replace("datastore_search?resource_id", "resource_show?id"),
                                dataType: "json",
                                success: function(e){
                                    post += '&name=' + e.result.name + '&description=' + e.result.description + '&created=' + e.result.created + '&format=' + e.result.format + '&lastModified=' + e.result.last_modified;
                                    xhr.send(post);
                                }
                            });
                        }
                        else
                        {
                            xhr.send(post);
                        }

                    }
                });

                xhr.onreadystatechange = function(){
                    if (this.readyState == 4 && this.status == 200){
                        var blob = new Blob([this.response], {type:'octet/stream'});
                        var downloadUrl = window.URL.createObjectURL(blob);
                        var a = document.createElement("a");
                        a.href = downloadUrl;
                        a.download = "datalet.rtf";
                        document.body.appendChild(a);
                        a.click();
                        //window.URL.revokeObjectURL(downloadUrl);
                    }
                };
            },

            importToMySpace: function() {
                var parent = this.parentElement;
                var html = '';
                while(!parent.hasAttribute("data-url"))
                    parent = parent.parentElement;

                var params = {};
                var fields;
                var component = parent.is;

                for(var i=0; i<parent.attributes.length; i++)
                    params[parent.attributes[i].name] = parent.attributes[i].value;

                delete params["fields"];
                delete params["data"];

                fields = parent.attributes["fields"].value.replace(/\[|\]/g, "");
                params = JSON.stringify(params);

                $.ajax({
                    type: 'post',
                    url: ODE.ajax_private_room_datalet,
                    data: {"component":component, "fields":fields, "params":params, "data":""},
                    dataType: 'JSON',
                    success: function(data){
                        if(data.status == "ok")
                        {
                            alert("Datalet added to Myspace");
                        }
                        else
                        {
                            alert("Error");
                        }
                    },
                    error: function( XMLHttpRequest, textStatus, errorThrown ){
                        OW.error(textStatus);
                    },
                    complete: function(){}
                });
            }

         });
    </script>
</dom-module>